From lists at w2irt.net Mon Jun 1 00:07:20 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 1 Jun 2020 00:07:20 -0400 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> Message-ID: <065101d637ca$25cf6a80$716e3f80$@w2irt.net> New coax and old coax behaved identically. HOWEVER, running into about 80 feet of old RG-213 and into the Cantenna dummy load and it doesn't fault. This is the only condition on 6m where there is no fault. Brand new coax, old coax, brand new antenna, old antenna, with balun, without balun. Always faults except when feeding the pure resistive dummy load. If there's any reactance it trips or gives false SWR info. I would also add, why would a 2:1 SWR trip out the amp at 25 or 30 Watts of drive? On the regular HF bands I can use the internal tuner to take out a 2.5 or 3:1 SWR and it still sends 1400-1450 Watts up the pipe.. - pjd -----Original Message----- From: Adrian Sent: Sunday, May 31, 2020 11:05 PM To: Peter Dougherty ; 'Paul Baldock' ; elecraft at mailman.qth.net Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) To remove any doubt, a 1.5kw or close dummy load at the end of the coax to replace antenna, would confirm the amp issue. On 1/6/20 12:27 pm, Peter Dougherty wrote: > Paul, please re-read what I wrote. The 90W figure is with the amp IN > STANDBY! I wouldn't dream of putting more than about 35W into the KPA-1500. > I generally like to run about 1200W on 6m, but even if I turn my K3s > drive down to 20 Watts, it will STILL hard-fault regularly. NO AMOUNT > OF DRIVE from the K3s will stop these problems. If the amp is set to > deliver power it's going to fault on 6m, regardless of what the ATU is > set for (bypass or inline), and the KPA will miss-read the SWR of the antenna system. > > The resistance figure is 50.8 Ohms, and the reactance is -11 according > to the AA-230. The only difference between "works reliably" and > "faults out all the time" is one is a resistive-only load, the other > has a reactive component. > > - pjd > > - > From kevinr at coho.net Mon Jun 1 00:09:15 2020 From: kevinr at coho.net (kevinr) Date: Sun, 31 May 2020 21:09:15 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: <7ad4daeb-99d3-cf91-9ca2-8e6a57a17c07@coho.net> Good Evening, ?? Twenty meters was loud again with many signals.? There was QSB and nowhere to start a net.? So I punched down my rising bread dough and formed a loaf.? There was time enough for it to rise and bake before the second net.? However, the smell of it was holding my attention.? Then Marv regained it from Washington with a weak signal.? Dale and Brian were about the same strength with the same amount of QSB.? Their weather reports were different.? While we had all had clouds and rain, Dale had a downpour.? Now his new plants are well settled for the summer.? It is time for another warm spell.? Then my sourdough starter can grow more active.? A cool house keeps the loaves more dense but the flavor is incredible.? Time for me to actively fill my truck with firewood to burn off the extra calories.? One thing I have noticed with the slower life style of the last few months is I spend more time cooking.? The stack of dishes piling up has a governing effect. ? On 7047.5 kHz at 0000z: KG7V - Marv - WA K6PJV - Dale - CA K0DTJ - Brian - CA Around noon I saw a new bird perched behind the house.? I think it was a female Black-throated gray warbler.? I need another sighting to confirm things though she may have just been passing through.? The forest has been filling with new bird calls.? This may have been one of them. ?? Until next week stay well 73, ????? Kevin.? KD5ONS - From k2vco.vic at gmail.com Mon Jun 1 00:18:11 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Mon, 1 Jun 2020 07:18:11 +0300 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> Message-ID: <9C16F400-3D7B-411D-8EAE-DDE4768DBA9B@gmail.com> Are you using the same output connector on the KPA1500 for the dummy load and the antenna? Perhaps the problem is in one of the SO239s or in the KPA?s switching circuit? Victor 4X6GP > On 1 Jun 2020, at 4:30, Peter Dougherty wrote: > > ?Many here suggested that it was most likely a feedline issue, and I figured > this was indeed a distinct possibility. > > So this afternoon I replaced the feedline. I now have about 80 feet of brand > new LMR-400, new 83-SP1 connectors (and an Amphenol adaptor at the balun > since I don't have any type-N connectors here). The AA-230 ZOOM analyzer > shows about 1.2:1 at 50.313, with resonance just below the band. I'll fix > that tomorrow, but 1.2 or 1.3:1 should be nothing to the KPA. > > The TDR screen looks very clean, just a tiny bump where the feedline goes > through the (new) bulkhead connector to get into the house. See: > https://www.dropbox.com/s/izcwvece7nt5f42/2020-05-31%2019.32.44.jpg?dl=0 > > The SWR chart between 50.000 and 50.500: > https://www.dropbox.com/s/y2xh4l1lihy2ujr/2020-05-31%2021.23.29.jpg?dl=0 > > Again, I know the antenna is resonant a bit low, but this should NOT be a > factor. So here's what's now going on. > > 1) Into a Cantenna dummy load, with 25W of drive from the M3s, the KPA-1500 > is delivering 1075W and showing 1.4:1. No problem delivering power and no > faults. > > 2) With input power increased, 35W of K3s drive gives 1375W at 1.5 into the > Cantenna. Again, no problem delivering power to the purely resistive load. > Why a 1.5:1, I don't know, but fine, whatever. I can TX for 15-20 second > periods without issue. > > 3) When I switch over to the live antenna, with25 Watts of drive from the > K3s into the actual antenna and the amp faults out instantly in bypass. When > the amplifier is in bypass and the tuner is in bypass, and when the K3s is > delivering about 90W in FT8 mode, the front panel on the KPA-1500 says the > SWR is 1.9:1. When I press the TUNE button on the radio, it's showing an SWR > of 1.4:1. > > 4) Amp in bypass, tuner inline, press TUNE button on the K3s and the front > panel of the KPA-1500 is showing a perfect 1.0:1 match. It SHOULD work fine > like this, right? > > 5) Pressing ONLY the OPER/STBY button to put the amp in operate (KPA tuner > in and untouched since step 4), the amp SOMETIMES delivers power, sometimes > faults out, shows an SWR of 1.7:1. Pressing the OPER/STBY button again to > use only exciter power, and touching NOTHING ELSE, it's back to 1.1:1 with > 90W of K3s drive. > > 6) There is basically no rhyme or reason why this is happening and it's > *somewhat* repeatable. The incredibly frustrating part is if I see a needed > station come up, I'll flick the amp's tuner in line and it says it's tuned. > Once WSJT-X keys the radio, 90 out of 100 times the amp will hard-fault. If > it doesn't fault on the first transmission, it absolutely WILL on the second > transmission. > > So I'm now at a complete loss to understand what's going on here. Amp is > fine into a resistive load. Brand-new antenna, brand new LMR-400 feedline, > brand new connectors, the KPA-1500 is faulting out the same as it did on the > 10+ year old 6M5 with a patchwork of feedlines. I can't see how this is > anything but a problem in the KPA-1500 (S/N 0398). > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Jim Brown > Sent: Sunday, May 31, 2020 8:22 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KPA-1500 faulting on 6m; SWR issues > >> On 5/31/2020 9:54 AM, Jim Miller wrote: >> Have you vetted your feedline at 1500w? Many times something might be >> good at low power and fail at 1500. > > This is good advice. Guys who do lots of portable setup say to always check > the coax first, which mostly means check for a connector that's bad or badly > installed. > > In general, if it doesn't say Amphenol or isn't stamped with a MIL spec > number, it's very likely to be poor quality. This includes barrels, > adapters, etc. Also make sure that every connector is" wrench tight." > > The advice to run it straight to a dummy load is right on -- if you have one > big enough. :) > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to lists at w2irt.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com From marklgoldberg at gmail.com Mon Jun 1 00:44:39 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Sun, 31 May 2020 21:44:39 -0700 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <065101d637ca$25cf6a80$716e3f80$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> Message-ID: I haven't seen a discussion of your grounding system or feedline length. 6M can be picky. What does your ground system look like? Do you have any common mode chokes on the feedline? Have you tried adding or subtracting 2-3 feet from the feedline? If it is exactly a multiple of 1/2 wave or 1/4 wave changing the feedline length will move it away from that. Have you tried adding a counterpoise in the shack? That's not the ultimate solution but if it improves things it will tell you something. Can you point an IR thermometer at tuner / balun inductors to see if they are getting hot? Just throwing out ideas. 73, Mark W7MLG On Sun, May 31, 2020 at 9:08 PM Peter Dougherty wrote: > New coax and old coax behaved identically. HOWEVER, running into about 80 > feet of old RG-213 and into the Cantenna dummy load and it doesn't fault. > This is the only condition on 6m where there is no fault. Brand new coax, > old coax, brand new antenna, old antenna, with balun, without balun. Always > faults except when feeding the pure resistive dummy load. If there's any > reactance it trips or gives false SWR info. > > I would also add, why would a 2:1 SWR trip out the amp at 25 or 30 Watts > of drive? On the regular HF bands I can use the internal tuner to take out > a 2.5 or 3:1 SWR and it still sends 1400-1450 Watts up the pipe.. > > - pjd > > From starman10 at hotmail.com Mon Jun 1 00:48:59 2020 From: starman10 at hotmail.com (Lou W0FK) Date: Sun, 31 May 2020 21:48:59 -0700 (MST) Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <9C16F400-3D7B-411D-8EAE-DDE4768DBA9B@gmail.com> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <9C16F400-3D7B-411D-8EAE-DDE4768DBA9B@gmail.com> Message-ID: <1590986939005-0.post@n2.nabble.com> What are the error codes when you hard fault? Check them and see if there?s any consistency. I sometimes get hard faults when I?ve moved my rf deck, simply because the PowerPoles on the 12v line from the power supply have moved a bit and aren?t making a good connection. I usually see a 50v warning pop up that alerts me to the issue. Have you made sure that 12v line is secured? I also concur that 90 watts Drive into the amp is way too much. That suggests the amp is the culprit. The innovantenna balun is pretty robust. But if you suspect it, bypass it and test a direct line with pigtailed ends directly into the loop. 73, Lou W0FK -- Sent from: http://elecraft.365791.n2.nabble.com/ From wes_n7ws at triconet.org Mon Jun 1 00:59:09 2020 From: wes_n7ws at triconet.org (Wes) Date: Sun, 31 May 2020 21:59:09 -0700 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> Message-ID: In an earlier message on a different, but related thread: http://elecraft.365791.n2.nabble.com/K3-SWR-Numerical-Indication-td7643839.html I wrote: "I would be surprised if two garden variety instruments, even placed at the same point, would agree. The directional bridges/couplers in most "(V)SWR" meters that hams routinely use externally or which are built into our radios are not precision instruments.? There are a number of error sources in reflection measurements; source match, diode non-linearity, coupler tracking errors and often the most significant, directivity error. In an ideal coupler, (i.e signal separation device) one port measures the forward (incident signal) and another measures the reverse (reflected) signal and there is no coupling between ports in the unwanted direction(s).? In other words there is no signal at the reverse port due to the forward signal.? In a real world coupler there is some leakage signal appearing at the reverse port due to the forward signal, absent any reflected signal.? The "goodness" of a directional coupler in this instance is called "directivity" and the error signal is directivity error. Directivity is usually specified in dB.? Really good couplers might have directivities in the 40 dB neighborhood. Really really good directional bridges can be 50 dB, but so-so units might be 25-30 dB.? Not ready for prime time units are lower than this. Now I have no way of knowing what the directivities are of the couplers built into K3s, KPA500s, KAT500s, etc. but considering that they have to work over about 5 octaves, I'm going out on a limb and saying that 25 to 30 dB is a fair estimate.? If I'm wrong, I'm sure I'll hear about it.? For sake of discussion I'm going to use 26.5 dB.? What this means is that if I terminate the output spigot of one of these radios with a perfect 50+j0 load, I'm going to measure a leakage signal (directivity error) that is 26.5 dB below the incident value. I'll introduce the concept of return loss here. We hams usually speak in terms of SWR.? SWR = (1 + p) / (1 - p) where p is the reflection coefficient. Here the p = the voltage measured at the reflected port and the constant 1 represents the incident signal.? In reality both of these quantities are complex numbers, they have both magnitude and phase but SWR measurements are scalar, we throw away the phase (since it's difficult to measure) and just use the magnitude. (In fact the symbol "p", which is really the Greek letter rho, indicates the magnitude of the reflection coefficient in normal usage)? We can also express this ratio as return loss, which is -20 * log10(p).? So return loss, SWR and reflection coefficient are just different ways to express the same thing; the ratio of incident to reflected signal. Let's return to our example; the coupler with 26.5 dB directivity, which indicates a return loss (RL) of 26.5 dB even with a perfect termination.? Doing the math and converting RL = 26.5 dB to SWR we get 1.1:1.? Our perfect load measures 1.1:1 with our imperfect instrument.? And this assumes that there are no other errors, which there always are. But it gets worse. Let's say that the load we want to measure really is 1.1:1.? We now have two (apparent) reflections, 1) the real one and 2) the directivity error and they both have the same magnitude.? In our simple detector, they sum together.? Now I said earlier that we don't measure phase, only magnitude, but just because we don't, or can't measure the relative phases doesn't mean they aren't there. We will examine two cases to determine the limits of error.? Case 1) both reflections are in phase, they add up to p + p or 2p, RL = 20.5 and SWR ~1.21:1.? Case 2) they are exactly out of phase, they sum to zero.? p = 0, RL is infinite and SWR = 1:1.? The possible RL error is then -6 to +infinity dB! In other words, an actual SWR of 1.1:1 can be measured anywhere between 1.0:1 and 1.2:1.? Is it any wonder that we often read about concerns that one device measures one thing, while another located at the same, or close location measures something different.? Of course all of this is predicated on a directional coupler with 26.5 dB directivity and no other error sources.? It's entirely possible that the Elecraft couplers are better than this.? They are certainly no better than 40 dB since the internal reference resistors are 51 instead of 50 ohm.? Plus the "Tandem Match" configuration is in itself not a great match to the transmitter output.(1)? Furthermore, the coupler, at least in a K3 is driven by a LPF, which isn't a great 50 ohm source. Plus the coupler output port isn't connected directly to the coax connector..... and so on and so forth (2).? All of this creates "uncertainty." In a metrology lab heroic efforts are made to reduce uncertainty but do we, or should we, really care in this situation?? In my opinion, no, but everyone is free to differ. Wes? N7WS (1)? See "An HF In-Line Return Loss And Power Meter" by Paul Kiciak, N2PK. http://n2pk.com/#TP3 (2)? See "Gauge the Accuracy of SNA Measurements" http://www.testmart.com/webdata/appnote/763.PDF" On 5/31/2020 7:06 PM, Paul Baldock wrote: > A few things I observe on my KPA 1500: > > On 6m the KPA1500 reads 1.3/1.4:1 into a perfect load.? FYI it reads 1.2:1 in > to a perfect load on 10M also, but 1.0:1 on all other bands.Elecraft have > various excuses for this. From norrislawfirm2 at gmail.com Mon Jun 1 05:24:30 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Mon, 1 Jun 2020 02:24:30 -0700 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <065101d637ca$25cf6a80$716e3f80$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> Message-ID: Is there any chance RF is getting in to the KPA1500 via an alternative route, like one of your HF antennas, a faulty switch, loose bonding/ground, or even a change in house wiring or wifi router, antenna rotator cable, picking up the RF and radiating/routing it to the KPA1500 from the antenna? It's a shot in the dark, I know, but cut out everything but the direct signal path originating from the K3, pull all the house breakers not used, turn off everything--make only the 6m path active and see what happens if this makes sense to you. I feel your frustration--the same thing in reverse took out my 2m EME station. I replaced every single thing, sent the K3 to Elecraft, the XV144 to Don...GUD LUCK OM! VY 73 Eric WD6DBM On Sun, May 31, 2020, 9:07 PM Peter Dougherty wrote: > New coax and old coax behaved identically. HOWEVER, running into about 80 > feet of old RG-213 and into the Cantenna dummy load and it doesn't fault. > This is the only condition on 6m where there is no fault. Brand new coax, > old coax, brand new antenna, old antenna, with balun, without balun. Always > faults except when feeding the pure resistive dummy load. If there's any > reactance it trips or gives false SWR info. > > I would also add, why would a 2:1 SWR trip out the amp at 25 or 30 Watts > of drive? On the regular HF bands I can use the internal tuner to take out > a 2.5 or 3:1 SWR and it still sends 1400-1450 Watts up the pipe.. > > - pjd > > -----Original Message----- > From: Adrian > Sent: Sunday, May 31, 2020 11:05 PM > To: Peter Dougherty ; 'Paul Baldock' < > paul at paulbaldock.com>; elecraft at mailman.qth.net > Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR > issues) > > To remove any doubt, a 1.5kw or close dummy load at the end of the coax to > replace antenna, would confirm the amp issue. > > On 1/6/20 12:27 pm, Peter Dougherty wrote: > > Paul, please re-read what I wrote. The 90W figure is with the amp IN > > STANDBY! I wouldn't dream of putting more than about 35W into the > KPA-1500. > > I generally like to run about 1200W on 6m, but even if I turn my K3s > > drive down to 20 Watts, it will STILL hard-fault regularly. NO AMOUNT > > OF DRIVE from the K3s will stop these problems. If the amp is set to > > deliver power it's going to fault on 6m, regardless of what the ATU is > > set for (bypass or inline), and the KPA will miss-read the SWR of the > antenna system. > > > > The resistance figure is 50.8 Ohms, and the reactance is -11 according > > to the AA-230. The only difference between "works reliably" and > > "faults out all the time" is one is a resistive-only load, the other > > has a reactive component. > > > > - pjd > > > > - > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to norrislawfirm2 at gmail.com > From gareth.m5kvk at gmail.com Mon Jun 1 05:34:06 2020 From: gareth.m5kvk at gmail.com (Gareth M5KVK) Date: Mon, 1 Jun 2020 09:34:06 +0000 Subject: [Elecraft] Problems with KRX3A In-Reply-To: <83323D76-B46A-48BB-B158-8EAA89283BB3@gmail.com> References: <283F240B-89EA-4E10-966F-AE0FE61F7C72@widomaker.com> <83323D76-B46A-48BB-B158-8EAA89283BB3@gmail.com> Message-ID: It seems to have been a transient. Signals appear to be comparable this morning. This is all by ear of course. 73 Gareth, M5KVK ?On 31/05/2020, 18:09, "Grant Youngman" wrote: Glad to hear you got it working. But you shouldn?t be seeing a signifiant difference between the two receivers, unless something is set differently between them, or there?s another issue floating around. Grant NQ5T > On May 31, 2020, at 12:36 PM, Gareth M5KVK wrote: > > Well, I?ve solved the initial problem. I stripped the rig back to its pre-KRX3A state and then re-installed: after checking performance. > > I can only surmise that there was a poor connection somewhere, as basically all I did was re-installed some TMP cables. > > The performance of the SUB is poorer than I would expect. It receives signals OK but at a considerably (more than -3dB) lower level. > > 73 > > Gareth, M5KVK > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ghyoungman at gmail.com From gareth.m5kvk at gmail.com Mon Jun 1 05:37:42 2020 From: gareth.m5kvk at gmail.com (Gareth M5KVK) Date: Mon, 1 Jun 2020 09:37:42 +0000 Subject: [Elecraft] Problems with KRX3A In-Reply-To: References: <283F240B-89EA-4E10-966F-AE0FE61F7C72@widomaker.com> Message-ID: Hi All I just wanted to put on record my thanks to all those who offered advice and support as I worked through the issue with my KRX3A. It?s all working now. For the record, I think it was a poor connection caused by one of the TMP cables not being engaged fully. 73 Gareth, M5KVK From jim at audiosystemsgroup.com Mon Jun 1 06:01:03 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 1 Jun 2020 03:01:03 -0700 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <062901d637bb$85797570$906c6050$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <0A84EF41-DD51-48A8-B2CE-AB865FEB00D3@me.com> <062901d637bb$85797570$906c6050$@w2irt.net> Message-ID: <76b54bd0-62e2-1a4b-ae3b-10f57ea9799e@audiosystemsgroup.com> On 5/31/2020 7:22 PM, Peter Dougherty wrote: > This is a brand-new balun from InnovAntennas, made specifically for this > antenna, received this past Thursday. The word "balun" has been used to describe nearly a dozen VERY different physical things, and is thus totally useless as a descriptor of what you used (or what they sold you). Buy me a case of a good single malt Scotch and I'll run down the list. I have extensively studied only one set of those "things," common mode chokes formed by winding a length of transmission line onto a ferrite core that is lossy at the frequency(ies) of interest, forming a parallel resonance in the common mode circuit where the RESISTIVE component of the low-Q parallel resonance is what makes the choke work. A good common mode choke does not interact with a well-designed antenna unless the Zo of the transmission line wound onto the ferrite core is mismatched to the antenna. And I emphatically do NOT call them "baluns" because use of that word obscures understanding of HOW they work. 73, Jim K9YC From k1rdd73 at gmail.com Mon Jun 1 07:39:59 2020 From: k1rdd73 at gmail.com (Doug Daniels) Date: Mon, 1 Jun 2020 07:39:59 -0400 Subject: [Elecraft] External battery for KX2, field day and SOTA Message-ID: I'm hoping to get my KX2 for Field Day, and am looking to get an external battery to use for FD as well as SOTA. I'm looking at the Talentcell and Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about external batteries? I know the internal one is more or less proprietary. -- --... ...-- Doug K1RDD From kb1tcd at gmail.com Mon Jun 1 07:55:19 2020 From: kb1tcd at gmail.com (JP Douglas) Date: Mon, 1 Jun 2020 07:55:19 -0400 Subject: [Elecraft] Elecraft Net on 75M In-Reply-To: References: <729ffea7-6a2d-937a-da52-9d27be80d3fb@Comcast.net> <1270738946.721271.1590968907130@mail.yahoo.com> Message-ID: <06CD5E18-C129-45F8-BCF1-2AA969CB0431@gmail.com> Hi all, I run a 75m Emergency Mgmt regional net Sundays at 21:00 UTC on 3.940 and The Seagull net is active rest of the week here in ME same freq. I find the band goes long shortly after the net is over, around 21:30. Might want to not use 3.940 for a net... I?d be willing to try Elecraft net anytime after 22:00 UTC. BTW, around 20:30 UTC yesterday a friend (N1EP) was trying his Yaesu FT-817 @ 5 watts on 3.940 so I answered him w/my KX3 @ 15 watts. He was coming in 5.3 and I was at 5.7. Distance was only 90 miles. Switched back to my Kenwood TS-830S for the net as I am nervous running a net on 15 watts. 73 de Jose Douglas KB1TCD Mid Coast ME Sent from my iPad > On May 31, 2020, at 8:09 PM, Paul Van Dyke wrote: > > listening on 3.940 > > >> On Sun, May 31, 2020 at 7:48 PM Ken Roberson wrote: >> >> Monitoring 3875 KHZ - Ken K5DNL >> >> On Sunday, May 31, 2020, 5:18:53 PM CDT, Paul Van Dyke < >> pvandyke1953 at gmail.com> wrote: >> >> >> Unfortunately, propagation really doesn't start in my area till 2400. It >> would change the WW Net to strictly a local net. And 3.825, has a major >> net at 24:00. So right now I'm looking at 3.875 >> >> Paul KB9AVO >> >>> On Sun, May 31, 2020, 5:55 PM Jan wrote: >>> >>> Hi Paul, KB9AVO in n.e. Indiana >>> >>> Will you find ANY propagation on 3920 kHz during the middle of the >>> afternoon ? >>> >>> Maybe ~ but kinda doubtful >>> >>> Regards, Jan K1ND in s.e. Michigan >>> >>> >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kwroberson at yahoo.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kb1tcd at gmail.com From nelasat at yahoo.com Mon Jun 1 08:07:51 2020 From: nelasat at yahoo.com (Keith Ennis) Date: Mon, 1 Jun 2020 12:07:51 +0000 (UTC) Subject: [Elecraft] Digital Display Unit for W2 and maybe W1 watt meter References: <2045791351.517042.1591013271798.ref@mail.yahoo.com> Message-ID: <2045791351.517042.1591013271798@mail.yahoo.com> First I'd like to thank all everyone that bought my DDU.? I have had some great feedback. I had an email last week asking me if my DDU would work with their W1 watt meter.? The model I am selling now will not.? But I can rewrite the code to work with the W1.? I would only do this if there are enough interested in a DDU that would work with their W1 watt meter.? If you are interested in a model for your W1 watt meter email me at:? DDUinfo at yahoo.com If you haven't heard about my W2 DDU, you can check it out at:? www.kv5j.com 73 and stay safe, Keith, KV5J From k1whs at metrocast.net Mon Jun 1 08:25:18 2020 From: k1whs at metrocast.net (David Olean) Date: Mon, 1 Jun 2020 08:25:18 -0400 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> Message-ID: <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Hello Peter I suspect RFI as well. I do not have a KPA1500, so my advice is not worth much, but the fact that the fault only occurs when a signal is being radiated sends me a red flag.? I had a similar problem here with my SPE amplifier power output. I was measuring it on an LP-100A wattmeter.? It turns out that 1.8 MHz energy from the SPE amp radiated from my vertical antenna and? was getting into a new wire doublet antenna and coming back down the ladder line into the shack. The ladder line was about 7 inches from the power coupler for the LP-100A. RF caused the readings to go wacky and it looked like my amplifier was going postal!? The problem was high rf fields next to the power meter coupler. Ferrite balun heating can be seen with a VSWR meter if you set the power at some intermediate level, key the amp up with a steady carrier, and watch for VSWR creeping up.? Loose pins in coax can also be a problem. They can heat up and disconnect or start arcing. Those problems do not typically show VSWR creep. They happen all at once usually. The KPA1500 works fine into a dummy load. (No RFI)? That is a big clue.?? Good luck and I hope you find the problem. Maybe an RF sniffer would detect the ingress point? 73 Dave K1WHS On 6/1/2020 5:24 AM, Eric Norris wrote: > Is there any chance RF is getting in to the KPA1500 via an alternative > route, like one of your HF antennas, a faulty switch, loose bonding/ground, > or even a change in house wiring or wifi router, antenna rotator cable, > picking up the RF and radiating/routing it to the KPA1500 from the > antenna? It's a shot in the dark, I know, but cut out everything but the > direct signal path originating from the K3, pull all the house breakers not > used, turn off everything--make only the 6m path active and see what > happens if this makes sense to you. > > I feel your frustration--the same thing in reverse took out my 2m EME > station. I replaced every single thing, sent the K3 to Elecraft, the XV144 > to Don...GUD LUCK OM! > > VY 73 Eric WD6DBM > > On Sun, May 31, 2020, 9:07 PM Peter Dougherty wrote: > >> New coax and old coax behaved identically. HOWEVER, running into about 80 >> feet of old RG-213 and into the Cantenna dummy load and it doesn't fault. >> This is the only condition on 6m where there is no fault. Brand new coax, >> old coax, brand new antenna, old antenna, with balun, without balun. Always >> faults except when feeding the pure resistive dummy load. If there's any >> reactance it trips or gives false SWR info. >> >> I would also add, why would a 2:1 SWR trip out the amp at 25 or 30 Watts >> of drive? On the regular HF bands I can use the internal tuner to take out >> a 2.5 or 3:1 SWR and it still sends 1400-1450 Watts up the pipe.. >> >> - pjd >> >> -----Original Message----- >> From: Adrian >> Sent: Sunday, May 31, 2020 11:05 PM >> To: Peter Dougherty ; 'Paul Baldock' < >> paul at paulbaldock.com>; elecraft at mailman.qth.net >> Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR >> issues) >> >> To remove any doubt, a 1.5kw or close dummy load at the end of the coax to >> replace antenna, would confirm the amp issue. >> >> On 1/6/20 12:27 pm, Peter Dougherty wrote: >>> Paul, please re-read what I wrote. The 90W figure is with the amp IN >>> STANDBY! I wouldn't dream of putting more than about 35W into the >> KPA-1500. >>> I generally like to run about 1200W on 6m, but even if I turn my K3s >>> drive down to 20 Watts, it will STILL hard-fault regularly. NO AMOUNT >>> OF DRIVE from the K3s will stop these problems. If the amp is set to >>> deliver power it's going to fault on 6m, regardless of what the ATU is >>> set for (bypass or inline), and the KPA will miss-read the SWR of the >> antenna system. >>> The resistance figure is 50.8 Ohms, and the reactance is -11 according >>> to the AA-230. The only difference between "works reliably" and >>> "faults out all the time" is one is a resistive-only load, the other >>> has a reactive component. >>> >>> - pjd >>> >>> - >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to norrislawfirm2 at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1whs at metrocast.net From kb1tcd at gmail.com Mon Jun 1 08:33:41 2020 From: kb1tcd at gmail.com (JP Douglas) Date: Mon, 1 Jun 2020 08:33:41 -0400 Subject: [Elecraft] External battery for KX2, field day and SOTA In-Reply-To: References: Message-ID: <30f707ad-e0a0-fd05-c2d1-6999d91b069a@gmail.com> Amazon is selling a 12v 6amp battery for $30 w/free shipping, fits in the palm of your hand. Ordered one last Friday to use w/KX3... 73 de Jose Douglas KB1TCD On 6/1/2020 7:39 AM, Doug Daniels wrote: > I'm hoping to get my KX2 for Field Day, and am looking to get an external > battery to use for FD as well as SOTA. I'm looking at the Talentcell and > Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about > external batteries? I know the internal one is more or less proprietary. > From tommy58 at hvc.rr.com Mon Jun 1 08:41:44 2020 From: tommy58 at hvc.rr.com (Tommy) Date: Mon, 1 Jun 2020 08:41:44 -0400 Subject: [Elecraft] External battery for KX2, field day and SOTA In-Reply-To: References: Message-ID: <6bef9828-7554-f995-2b14-d2d04c7398a0@hvc.rr.com> I use a Bioenno 9ah battery with mine, works great. Tom - KB2SMS On 6/1/20 7:39 AM, Doug Daniels wrote: > I'm hoping to get my KX2 for Field Day, and am looking to get an external > battery to use for FD as well as SOTA. I'm looking at the Talentcell and > Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about > external batteries? I know the internal one is more or less proprietary. > From dave at nk7z.net Mon Jun 1 09:05:03 2020 From: dave at nk7z.net (Dave Cole) Date: Mon, 1 Jun 2020 06:05:03 -0700 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <065101d637ca$25cf6a80$716e3f80$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> Message-ID: <4cc7447a-ea84-fb70-6695-29755d8bb5fe@nk7z.net> Peter, If my antenna system had 2.5 to 3 to 1 SWR, I would not run 1.5 KW. I'd be looking at my antenna... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 5/31/20 9:07 PM, Peter Dougherty wrote: > I would also add, why would a 2:1 SWR trip out the amp at 25 or 30 Watts of drive? On the regular HF bands I can use the internal tuner to take out a 2.5 or 3:1 SWR and it still sends 1400-1450 Watts up the pipe.. > > - pjd From sm.shearer.01 at gmail.com Mon Jun 1 09:37:10 2020 From: sm.shearer.01 at gmail.com (stephen shearer) Date: Mon, 1 Jun 2020 09:37:10 -0400 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: <83ef5e6c-7a43-fdb1-a7c6-611b0c7add63@gmail.com> Ground loops can be another issue. I was having a "feed back" issue with my KX3/KXPA100 ans solved it eliminating ground/power loops. 73, steve WB3LGC On 6/1/20 8:25 AM, David Olean wrote: > Hello Peter > > I suspect RFI as well. I do not have a KPA1500, so my advice is not > worth much, but the fact that the fault only occurs when a signal is > being radiated sends me a red flag.? I had a similar problem here with > my SPE amplifier power output. I was measuring it on an LP-100A > wattmeter.? It turns out that 1.8 MHz energy from the SPE amp radiated > from my vertical antenna and? was getting into a new wire doublet > antenna and coming back down the ladder line into the shack. The ladder > line was about 7 inches from the power coupler for the LP-100A. RF > caused the readings to go wacky and it looked like my amplifier was > going postal!? The problem was high rf fields next to the power meter > coupler. > > Ferrite balun heating can be seen with a VSWR meter if you set the power > at some intermediate level, key the amp up with a steady carrier, and > watch for VSWR creeping up.? Loose pins in coax can also be a problem. > They can heat up and disconnect or start arcing. Those problems do not > typically show VSWR creep. They happen all at once usually. > > The KPA1500 works fine into a dummy load. (No RFI)? That is a big > clue.?? Good luck and I hope you find the problem. Maybe an RF sniffer > would detect the ingress point? > > 73 > > Dave K1WHS > > > On 6/1/2020 5:24 AM, Eric Norris wrote: >> Is there any chance RF is getting in to the KPA1500 via an alternative >> route, like one of your HF antennas, a faulty switch, loose >> bonding/ground, >> or even a change in house wiring or wifi router, antenna rotator cable, >> picking up the RF and radiating/routing it to the KPA1500 from the >> antenna?? It's a shot in the dark, I know, but cut out everything but the >> direct signal path originating from the K3, pull all the house >> breakers not >> used, turn off everything--make only the 6m path active and see what >> happens if this makes sense to you. >> >> I feel your frustration--the same thing in reverse took out my 2m EME >> station. I replaced every single thing, sent the K3 to Elecraft, the >> XV144 >> to Don...GUD LUCK OM! >> >> VY 73 Eric WD6DBM >> >> On Sun, May 31, 2020, 9:07 PM Peter Dougherty wrote: >> >>> New coax and old coax behaved identically. HOWEVER, running into >>> about 80 >>> feet of old RG-213 and into the Cantenna dummy load and it doesn't >>> fault. >>> This is the only condition on 6m where there is no fault. Brand new >>> coax, >>> old coax, brand new antenna, old antenna, with balun, without balun. >>> Always >>> faults except when feeding the pure resistive dummy load. If there's any >>> reactance it trips or gives false SWR info. >>> >>> I would also add, why would a 2:1 SWR trip out the amp at 25 or 30 Watts >>> of drive? On the regular HF bands I can use the internal tuner to >>> take out >>> a 2.5 or 3:1 SWR and it still sends 1400-1450 Watts up the pipe.. >>> >>> ? - pjd >>> >>> -----Original Message----- >>> From: Adrian >>> Sent: Sunday, May 31, 2020 11:05 PM >>> To: Peter Dougherty ; 'Paul Baldock' < >>> paul at paulbaldock.com>; elecraft at mailman.qth.net >>> Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on >>> 6m; SWR >>> issues) >>> >>> To remove any doubt, a 1.5kw or close dummy load at the end of the >>> coax to >>> replace antenna, would confirm the amp issue. >>> >>> On 1/6/20 12:27 pm, Peter Dougherty wrote: >>>> Paul, please re-read what I wrote. The 90W figure is with the amp IN >>>> STANDBY! I wouldn't dream of putting more than about 35W into the >>> KPA-1500. >>>> I generally like to run about 1200W on 6m, but even if I turn my K3s >>>> drive down to 20 Watts, it will STILL hard-fault regularly. NO AMOUNT >>>> OF DRIVE from the K3s will stop these problems. If the amp is set to >>>> deliver power it's going to fault on 6m, regardless of what the ATU is >>>> set for (bypass or inline), and the KPA will miss-read the SWR of the >>> antenna system. >>>> The resistance figure is 50.8 Ohms, and the reactance is -11 according >>>> to the AA-230. The only difference between "works reliably" and >>>> "faults out all the time" is one is a resistive-only load, the other >>>> has a reactive component. >>>> >>>> ?? - pjd >>>> >>>> - >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to norrislawfirm2 at gmail.com >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k1whs at metrocast.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to sm.shearer.01 at gmail.com From g4gnx at g4gnx.com Mon Jun 1 09:45:56 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Mon, 01 Jun 2020 13:45:56 +0000 Subject: [Elecraft] NOT the feedline In-Reply-To: <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: I have a similar issue with ferrite 'balun' heating, although mostly tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 balun at the feed point, but also has a sleeve 'balun' consisting of 8 ferrites wrapped in a plastic sleeve, about 3 feet from the feed point. If I run the K3S at 100W, via the KPA500 in standby, then through the KAT500 tuner, I see no problems. On increasing the power to 200W by using the KPA500 in Operate and about 10W drive from the K3S, during a SSB 'over' the temperature of the KPA500 rises and after a few minutes, the SWR readings on the KPA500 and KAT500 start to rise. One of the Elecraft guys actually very kindly went through my fault log and came to the conclusion that the fault is with the antenna/feeder and I agree with him. What is strange is that if I leave a solid carrier running at 200W, I can't easily reproduce the issue and I wonder if its something being affected by peak excursions with SSB? When things do start to go wrong, I can usually perform a manual tune with the KAT500 and the fault will then not (mostly) be apparent. Anyway, I'm in the process of replacing the entire feeder with Westflex 103 and much bigger ferrites. I will also replace the main balun which is a 400W device for a 1KW device, as I think that running the UK max of 400W may be pushing the spec of a 400W balun. Also, the balun itself or connections to it may be faulty. The point now is that I have discovered some damage to the outer covering of the sleeve 'balun' which may be the result of ferrites overheating or may be the cause of movement of the ferrites thus causing instability. Either way, heftier devices seem to be the order of the day. Although the KPA500 temperature rise is somewhat expected, I feel it's a bit higher over a short period than I would like and may be due to reflected power. 73, Alan. G4GNX ------ Original Message ------ From: "David Olean" To: "Peter Dougherty" Cc: elecraft at mailman.qth.net Sent: 01/06/2020 13:25:18 Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) >Hello Peter > >I suspect RFI as well. I do not have a KPA1500, so my advice is not worth much, but the fact that the fault only occurs when a signal is being radiated sends me a red flag. I had a similar problem here with my SPE amplifier power output. I was measuring it on an LP-100A wattmeter. It turns out that 1.8 MHz energy from the SPE amp radiated from my vertical antenna and was getting into a new wire doublet antenna and coming back down the ladder line into the shack. The ladder line was about 7 inches from the power coupler for the LP-100A. RF caused the readings to go wacky and it looked like my amplifier was going postal! The problem was high rf fields next to the power meter coupler. > >Ferrite balun heating can be seen with a VSWR meter if you set the power at some intermediate level, key the amp up with a steady carrier, and watch for VSWR creeping up. Loose pins in coax can also be a problem. They can heat up and disconnect or start arcing. Those problems do not typically show VSWR creep. They happen all at once usually. > >The KPA1500 works fine into a dummy load. (No RFI) That is a big clue. Good luck and I hope you find the problem. Maybe an RF sniffer would detect the ingress point? > >73 > >Dave K1WHS > From vk4tux at gmail.com Mon Jun 1 10:13:19 2020 From: vk4tux at gmail.com (Adrian) Date: Tue, 2 Jun 2020 00:13:19 +1000 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: If you use a decent combination balun such as ; https://www.balundesigns.com/model-4116-4-1-hybrid-balun-1-5-54mhz-3kw/ if you have any metal structure in range of the field, or https://www.balundesigns.com/model-4115ocf-4-1-for-ocf-dipoles-1-5-54-mhz-5kw/ for a total current 4:1 balun. These are very robust at high power, and no other feedpoint RF common mode choke is required. I ran a K3 , amp and ocf dipole like this, with above balun earlier this decade with great success, had top 4a4a dxpedition total band vk points with this one antenna. Also the windom and ocf are different animals. The true windom uses the vertical section of its feedline as part of the antenna, such that any ocf dipole with a feedpoint common mode choke cannot be referred to as a 'windom' Adrian Fewster On 1/6/20 11:45 pm, Alan - G4GNX wrote: > I have a similar issue with ferrite 'balun' heating, although mostly > tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 > balun at the feed point, but also has a sleeve 'balun' consisting of 8 > ferrites wrapped in a plastic sleeve, about 3 feet from the feed > point. If I run the K3S at 100W, via the KPA500 in standby, then > through the KAT500 tuner, I see no problems. > > On increasing the power to 200W by using the KPA500 in Operate and > about 10W drive from the K3S, during a SSB 'over' the temperature of > the KPA500 rises and after a few minutes, the SWR readings on the > KPA500 and KAT500 start to rise. One of the Elecraft guys actually > very kindly went through my fault log and came to the conclusion that > the fault is with the antenna/feeder and I agree with him. What is > strange is that if I leave a solid carrier running at 200W, I can't > easily reproduce the issue and I wonder if its something being > affected by peak excursions with SSB? > > When things do start to go wrong, I can usually perform a manual tune > with the KAT500 and the fault will then not (mostly) be apparent. > > Anyway, I'm in the process of replacing the entire feeder with > Westflex 103 and much bigger ferrites. I will also replace the main > balun which is a 400W device for a 1KW device, as I think that running > the UK max of 400W may be pushing the spec of a 400W balun. Also, the > balun itself or connections to it may be faulty. > > The point now is that I have discovered some damage to the outer > covering of the sleeve 'balun' which may be the result of ferrites > overheating or may be the cause of movement of the ferrites thus > causing instability. Either way, heftier devices seem to be the order > of the day. > > Although the KPA500 temperature rise is somewhat expected, I feel it's > a bit higher over a short period than I would like and may be due to > reflected power. > > 73, > > Alan. G4GNX > > From lists at w2irt.net Mon Jun 1 10:17:06 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 1 Jun 2020 10:17:06 -0400 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <9C16F400-3D7B-411D-8EAE-DDE4768DBA9B@gmail.com> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <9C16F400-3D7B-411D-8EAE-DDE4768DBA9B@gmail.com> Message-ID: <067f01d6381f$552b48d0$ff81da70$@w2irt.net> That's worth a shot. I have a ~7 foot RG-213 patch cable from the back of the amp to the entry box. I don't have any more LMR-400 so I can't use that, but I do have quite a bit of 213 and will make a new patch cable. That's the only bit of the old system that's still remaining. - pjd -----Original Message----- From: Vic Rosenthal Sent: Monday, June 1, 2020 12:18 AM To: Peter Dougherty Cc: jim at audiosystemsgroup.com; Elecraft at mailman.qth.net Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) Are you using the same output connector on the KPA1500 for the dummy load and the antenna? Perhaps the problem is in one of the SO239s or in the KPA?s switching circuit? Victor 4X6GP > On 1 Jun 2020, at 4:30, Peter Dougherty wrote: > > ?Many here suggested that it was most likely a feedline issue, and I > figured this was indeed a distinct possibility. > > So this afternoon I replaced the feedline. I now have about 80 feet of > brand new LMR-400, new 83-SP1 connectors (and an Amphenol adaptor at > the balun since I don't have any type-N connectors here). The AA-230 > ZOOM analyzer shows about 1.2:1 at 50.313, with resonance just below > the band. I'll fix that tomorrow, but 1.2 or 1.3:1 should be nothing to the KPA. > > The TDR screen looks very clean, just a tiny bump where the feedline > goes through the (new) bulkhead connector to get into the house. See: > https://www.dropbox.com/s/izcwvece7nt5f42/2020-05-31%2019.32.44.jpg?dl > =0 > > The SWR chart between 50.000 and 50.500: > https://www.dropbox.com/s/y2xh4l1lihy2ujr/2020-05-31%2021.23.29.jpg?dl > =0 > > Again, I know the antenna is resonant a bit low, but this should NOT > be a factor. So here's what's now going on. > > 1) Into a Cantenna dummy load, with 25W of drive from the M3s, the > KPA-1500 is delivering 1075W and showing 1.4:1. No problem delivering > power and no faults. > > 2) With input power increased, 35W of K3s drive gives 1375W at 1.5 > into the Cantenna. Again, no problem delivering power to the purely resistive load. > Why a 1.5:1, I don't know, but fine, whatever. I can TX for 15-20 > second periods without issue. > > 3) When I switch over to the live antenna, with25 Watts of drive from > the K3s into the actual antenna and the amp faults out instantly in > bypass. When the amplifier is in bypass and the tuner is in bypass, > and when the K3s is delivering about 90W in FT8 mode, the front panel > on the KPA-1500 says the SWR is 1.9:1. When I press the TUNE button on > the radio, it's showing an SWR of 1.4:1. > > 4) Amp in bypass, tuner inline, press TUNE button on the K3s and the > front panel of the KPA-1500 is showing a perfect 1.0:1 match. It > SHOULD work fine like this, right? > > 5) Pressing ONLY the OPER/STBY button to put the amp in operate (KPA > tuner in and untouched since step 4), the amp SOMETIMES delivers > power, sometimes faults out, shows an SWR of 1.7:1. Pressing the > OPER/STBY button again to use only exciter power, and touching NOTHING > ELSE, it's back to 1.1:1 with 90W of K3s drive. > > 6) There is basically no rhyme or reason why this is happening and > it's > *somewhat* repeatable. The incredibly frustrating part is if I see a > needed station come up, I'll flick the amp's tuner in line and it says it's tuned. > Once WSJT-X keys the radio, 90 out of 100 times the amp will > hard-fault. If it doesn't fault on the first transmission, it > absolutely WILL on the second transmission. > > So I'm now at a complete loss to understand what's going on here. Amp > is fine into a resistive load. Brand-new antenna, brand new LMR-400 > feedline, brand new connectors, the KPA-1500 is faulting out the same > as it did on the > 10+ year old 6M5 with a patchwork of feedlines. I can't see how this > 10+ is > anything but a problem in the KPA-1500 (S/N 0398). > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On Behalf Of Jim Brown > Sent: Sunday, May 31, 2020 8:22 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KPA-1500 faulting on 6m; SWR issues > >> On 5/31/2020 9:54 AM, Jim Miller wrote: >> Have you vetted your feedline at 1500w? Many times something might be >> good at low power and fail at 1500. > > This is good advice. Guys who do lots of portable setup say to always > check the coax first, which mostly means check for a connector that's > bad or badly installed. > > In general, if it doesn't say Amphenol or isn't stamped with a MIL > spec number, it's very likely to be poor quality. This includes > barrels, adapters, etc. Also make sure that every connector is" wrench tight." > > The advice to run it straight to a dummy load is right on -- if you > have one big enough. :) > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > lists at w2irt.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > k2vco.vic at gmail.com From lists at w2irt.net Mon Jun 1 10:19:55 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 1 Jun 2020 10:19:55 -0400 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> Message-ID: <068a01d6381f$b9cbc850$2d6358f0$@w2irt.net> The new full-length LMR-400 cable is about 3 feet longer than the old 2-section coax I had before (old = 3/8? hardline and about 8 feet of RG-213). The entry point is grounded to rod immediately below it, connected by 1.5? braid. - pjd From: Mark Goldberg Sent: Monday, June 1, 2020 12:45 AM To: Peter Dougherty Cc: Adrian ; Paul Baldock ; Elecraft Mailing List Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) I haven't seen a discussion of your grounding system or feedline length. 6M can be picky. What does your ground system look like? Do you have any common mode chokes on the feedline? Have you tried adding or subtracting 2-3 feet from the feedline? If it is exactly a multiple of 1/2 wave or 1/4 wave changing the feedline length will move it away from that. Have you tried adding a counterpoise in the shack? That's not the ultimate solution but if it improves things it will tell you something. Can you point an IR thermometer at tuner / balun inductors to see if they are getting hot? Just throwing out ideas. 73, Mark W7MLG On Sun, May 31, 2020 at 9:08 PM Peter Dougherty > wrote: New coax and old coax behaved identically. HOWEVER, running into about 80 feet of old RG-213 and into the Cantenna dummy load and it doesn't fault. This is the only condition on 6m where there is no fault. Brand new coax, old coax, brand new antenna, old antenna, with balun, without balun. Always faults except when feeding the pure resistive dummy load. If there's any reactance it trips or gives false SWR info. I would also add, why would a 2:1 SWR trip out the amp at 25 or 30 Watts of drive? On the regular HF bands I can use the internal tuner to take out a 2.5 or 3:1 SWR and it still sends 1400-1450 Watts up the pipe.. - pjd From tim.n9puz at gmail.com Mon Jun 1 10:19:10 2020 From: tim.n9puz at gmail.com (Tim N9PUZ) Date: Mon, 1 Jun 2020 09:19:10 -0500 Subject: [Elecraft] External battery for KX2, field day and SOTA In-Reply-To: References: Message-ID: The internal battery isn't proprietary. Elecraft has some made for them with the power connector they use. I bought some spares from Tenergy a while back and soldered on my own connectors. I'm not sure why, at the time Elecraft had a shipping policy about more than two batteries I believe. I have several Bioenno batteries I use on my KX2 and other radios. They work great! I expect you could run the entire Field Day with the 12Ah one. Tim N9PUZ On Mon, Jun 1, 2020 at 6:42 AM Doug Daniels wrote: > I'm hoping to get my KX2 for Field Day, and am looking to get an external > battery to use for FD as well as SOTA. I'm looking at the Talentcell and > Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about > external batteries? I know the internal one is more or less proprietary. > > -- > > --... ...-- > Doug K1RDD > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to tim.n9puz at gmail.com > From lists at w2irt.net Mon Jun 1 10:25:35 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 1 Jun 2020 10:25:35 -0400 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <1590986939005-0.post@n2.nabble.com> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <9C16F400-3D7B-411D-8EAE-DDE4768DBA9B@gmail.com> <1590986939005-0.post@n2.nabble.com> Message-ID: <069701d63820$84066990$8c133cb0$@w2irt.net> I have never driven the amp with 90 Watts. Ever. The 90W figure is what comes out of the K3s *after* the amp has tripped out. With the amp in 'operate' I feed it typically 25-35 Watts. Here are the error codes, as requested (truncated for length--there are MANY more): 441 20-06-01T01:02:22 FLT 90 - PWR REFL freq 50304 inp 13W fwd 1064W refl 198W swr 2.5 23A 32C adc 280 var 198 440 20-05-31T23:45:57 FLT 90 - PWR REFL freq 50008 inp 22W fwd 1356W refl 199W swr 2.2 44A 45C adc 281 var 199 439 20-05-31T23:43:46 OVR 90 - PWR REFL freq 50304 inp 23W fwd 1210W refl 172W swr 2.2 39A 31C adc 257 var 172 438 20-05-31T23:43:39 OVR 90 - PWR REFL freq 50304 inp 23W fwd 1204W refl 172W swr 2.2 39A 28C adc 257 var 172 437 20-05-31T23:43:13 FLT 90 - PWR REFL freq 50304 inp 23W fwd 1298W refl 202W swr 2.3 44A 27C adc 284 var 202 435 20-05-31T02:39:03 OVR 90 - PWR REFL freq 50304 inp 14W fwd 1107W refl 178W swr 2.3 23A 47C adc 262 var 178 434 20-05-31T02:34:03 FLT 90 - PWR REFL freq 50304 inp 15W fwd 1152W refl 198W swr 2.4 28A 33C adc 280 var 198 433 20-05-31T02:25:03 OVR 90 - PWR REFL freq 50304 inp 15W fwd 1130W refl 187W swr 2.3 24A 43C adc 270 var 187 432 20-05-31T02:23:03 FLT 90 - PWR REFL freq 50304 inp 18W fwd 1165W refl 199W swr 2.4 40A 43C adc 281 var 199 431 20-05-31T02:21:33 FLT 90 - PWR REFL freq 50304 inp 20W fwd 1189W refl 201W swr 2.3 46A 48C adc 283 var 201 From norrislawfirm2 at gmail.com Mon Jun 1 10:42:45 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Mon, 1 Jun 2020 07:42:45 -0700 Subject: [Elecraft] External battery for KX2, field day and SOTA In-Reply-To: <6bef9828-7554-f995-2b14-d2d04c7398a0@hvc.rr.com> References: <6bef9828-7554-f995-2b14-d2d04c7398a0@hvc.rr.com> Message-ID: I, too, use Bioenno batteries. They work well, and I have tested the ones I own under load, and the advertised capacity ratings are pretty accurate. My one gripe is that the balancing circuitry is built into the pack. This causes them to slowly self-discharge. The original A123 batteries use a balancing system built into their specialized chargers, and they hold their charge much longer. However, A123 filed Ch11, and they are now back in production by a new owner. I don't know how good the new ones are, but they are available once again through Buddipole. My now very old original A123 packs still test out at 85% of their original capacity. They were expensive, but they were a good investment. I've had them, I think, about 10 years--I used to use the S4P1 to power my beloved KX1, which at 14.2V put out bookoo power! 73 Eric WD6DBM On Mon, Jun 1, 2020, 5:41 AM Tommy wrote: > I use a Bioenno 9ah battery with mine, works great. > > Tom - KB2SMS > > > On 6/1/20 7:39 AM, Doug Daniels wrote: > > I'm hoping to get my KX2 for Field Day, and am looking to get an external > > battery to use for FD as well as SOTA. I'm looking at the Talentcell and > > Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about > > external batteries? I know the internal one is more or less proprietary. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to norrislawfirm2 at gmail.com > From john at kk9a.com Mon Jun 1 10:50:20 2020 From: john at kk9a.com (john at kk9a.com) Date: Mon, 01 Jun 2020 09:50:20 -0500 Subject: [Elecraft] KPA-1500 faulting on 6m; SWR issues Message-ID: <20200601095020.Horde.G6ldKKiadgf5U43JicVK4zV@www11.qth.com> I am not familiar with the KPA1500 but I am wondering if the tuner is causing the poor SWR on your good 6m antenna? Is it bypassed? John KK9A Peter Dougherty w2irt wrote: I have never driven the amp with 90 Watts. Ever. The 90W figure is what comes out of the K3s *after* the amp has tripped out. With the amp in 'operate' I feed it typically 25-35 Watts. Here are the error codes, as requested (truncated for length--there are MANY more): 441 20-06-01T01:02:22 FLT 90 - PWR REFL freq 50304 inp 13W fwd 1064W refl 198W swr 2.5 23A 32C adc 280 var 198 440 20-05-31T23:45:57 FLT 90 - PWR REFL freq 50008 inp 22W fwd 1356W refl 199W swr 2.2 44A 45C adc 281 var 199 439 20-05-31T23:43:46 OVR 90 - PWR REFL freq 50304 inp 23W fwd 1210W refl 172W swr 2.2 39A 31C adc 257 var 172 438 20-05-31T23:43:39 OVR 90 - PWR REFL freq 50304 inp 23W fwd 1204W refl 172W swr 2.2 39A 28C adc 257 var 172 437 20-05-31T23:43:13 FLT 90 - PWR REFL freq 50304 inp 23W fwd 1298W refl 202W swr 2.3 44A 27C adc 284 var 202 435 20-05-31T02:39:03 OVR 90 - PWR REFL freq 50304 inp 14W fwd 1107W refl 178W swr 2.3 23A 47C adc 262 var 178 434 20-05-31T02:34:03 FLT 90 - PWR REFL freq 50304 inp 15W fwd 1152W refl 198W swr 2.4 28A 33C adc 280 var 198 433 20-05-31T02:25:03 OVR 90 - PWR REFL freq 50304 inp 15W fwd 1130W refl 187W swr 2.3 24A 43C adc 270 var 187 432 20-05-31T02:23:03 FLT 90 - PWR REFL freq 50304 inp 18W fwd 1165W refl 199W swr 2.4 40A 43C adc 281 var 199 431 20-05-31T02:21:33 FLT 90 - PWR REFL freq 50304 inp 20W fwd 1189W refl 201W swr 2.3 46A 48C adc 283 var 201 From dbthompson at me.com Mon Jun 1 10:57:02 2020 From: dbthompson at me.com (David Thompson) Date: Mon, 1 Jun 2020 07:57:02 -0700 Subject: [Elecraft] External battery for KX2, field day and SOTA In-Reply-To: References: Message-ID: <624C23DA-41C7-43AD-9FB0-8D3A9E398656@me.com> Morning Doug, Like many others who responded to you, I use Bioenno LFP batteries to power my radios in the field. I currently have three packs, a 3Ah, a 15Ah, and a new 60Ah. The latter was purchased for Field Day and will power my K3, station computer, and whatnot in the field. (Yes, I?m going to camp for FD.) I just received a new-to-me KX2 and have operated it with the internal battery pack a few times. For a short operation, like playing at the park, I think that power source is adequate. For a more substantial operation, additional power is appropriate. As far as I can tell, the packs are radio-quiet and the 15Ah pack, which I?ve had for a year, is doing fine. I considered a Talentcell for portable ops, too. But elected to buy a known-to-me quantity and instead bought a Bioenno 3Ah pack. Have fun and 73 de AG7TX... David Thompson, AG7TX Jack of All Trades Master of None dbthompson at me.com > On Jun 1, 2020, at 04:39, Doug Daniels wrote: > > I'm hoping to get my KX2 for Field Day, and am looking to get an external > battery to use for FD as well as SOTA. I'm looking at the Talentcell and > Bienno 12v 12Ah ones. Anything specific to the KX2 I need to know about > external batteries? I know the internal one is more or less proprietary. > > -- > > --... ...-- > Doug K1RDD > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dbthompson at me.com From lists at w2irt.net Mon Jun 1 11:03:57 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 1 Jun 2020 11:03:57 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: <06a601d63825$e0916a20$a1b43e60$@w2irt.net> The balun (1:1 current choke here) is a red herring. If you follow this thread all the way back, you'll see that the previous antenna was not balun fed, and it used a length of 75 ohm cable and stubs to match. And in this case the balun is made by InnovAntennas, specifically for this antenna (also of their design in the UK). If changing any one or two components had made a significant difference I would have noted it. First was the antenna change. When that failed to show a marked difference then I replaced the feedline. Again, no change whatsoever. It's behaving the same today as it has since I first got on 6m with high power. So either the amp has an issue or it's something incredibly esoteric that will take a miracle to find and fix. I have tried going through an antenna switch and switching via the KPA-1500. No difference. All coax connectors are genuine Amphenol 83-SP1 and assembled correctly. New LMR-400 coax, purchased last year and stored inside over the winter, and new(ish) RG-213 patch cable inside the house. I don't ever reuse connectors or outdoor coax. Everything I'm seeing is pointing to the fault being inside the KPA-1500 at this point. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Adrian Sent: Monday, June 1, 2020 10:13 AM To: Alan - G4GNX ; Elecraft Reflector Subject: Re: [Elecraft] NOT the feedline If you use a decent combination balun such as ; https://www.balundesigns.com/model-4116-4-1-hybrid-balun-1-5-54mhz-3kw/ if you have any metal structure in range of the field, or https://www.balundesigns.com/model-4115ocf-4-1-for-ocf-dipoles-1-5-54-mhz-5k w/ for a total current 4:1 balun. These are very robust at high power, and no other feedpoint RF common mode choke is required. I ran a K3 , amp and ocf dipole like this, with above balun earlier this decade with great success, had top 4a4a dxpedition total band vk points with this one antenna. Also the windom and ocf are different animals. The true windom uses the vertical section of its feedline as part of the antenna, such that any ocf dipole with a feedpoint common mode choke cannot be referred to as a 'windom' Adrian Fewster On 1/6/20 11:45 pm, Alan - G4GNX wrote: > I have a similar issue with ferrite 'balun' heating, although mostly > tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 > balun at the feed point, but also has a sleeve 'balun' consisting of 8 > ferrites wrapped in a plastic sleeve, about 3 feet from the feed > point. If I run the K3S at 100W, via the KPA500 in standby, then > through the KAT500 tuner, I see no problems. > > On increasing the power to 200W by using the KPA500 in Operate and > about 10W drive from the K3S, during a SSB 'over' the temperature of > the KPA500 rises and after a few minutes, the SWR readings on the > KPA500 and KAT500 start to rise. One of the Elecraft guys actually > very kindly went through my fault log and came to the conclusion that > the fault is with the antenna/feeder and I agree with him. What is > strange is that if I leave a solid carrier running at 200W, I can't > easily reproduce the issue and I wonder if its something being > affected by peak excursions with SSB? > > When things do start to go wrong, I can usually perform a manual tune > with the KAT500 and the fault will then not (mostly) be apparent. > > Anyway, I'm in the process of replacing the entire feeder with > Westflex 103 and much bigger ferrites. I will also replace the main > balun which is a 400W device for a 1KW device, as I think that running > the UK max of 400W may be pushing the spec of a 400W balun. Also, the > balun itself or connections to it may be faulty. > > The point now is that I have discovered some damage to the outer > covering of the sleeve 'balun' which may be the result of ferrites > overheating or may be the cause of movement of the ferrites thus > causing instability. Either way, heftier devices seem to be the order > of the day. > > Although the KPA500 temperature rise is somewhat expected, I feel it's > a bit higher over a short period than I would like and may be due to > reflected power. > > 73, > > Alan. G4GNX > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From vk4tux at gmail.com Mon Jun 1 11:21:34 2020 From: vk4tux at gmail.com (Adrian) Date: Tue, 2 Jun 2020 01:21:34 +1000 Subject: [Elecraft] NOT the feedline In-Reply-To: <06a601d63825$e0916a20$a1b43e60$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <06a601d63825$e0916a20$a1b43e60$@w2irt.net> Message-ID: In that case, then it should also fault with a 50 ohm dummy load under the same settings. Does it ? Adrian Fewster Everything I'm seeing is pointing to the fault > being inside the KPA-1500 at this point. > > - pjd > From jim at audiosystemsgroup.com Mon Jun 1 15:45:05 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 1 Jun 2020 12:45:05 -0700 Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <83ef5e6c-7a43-fdb1-a7c6-611b0c7add63@gmail.com> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <83ef5e6c-7a43-fdb1-a7c6-611b0c7add63@gmail.com> Message-ID: <1a564c84-16a5-1d3c-9349-1741bfa8c45a@audiosystemsgroup.com> On 6/1/2020 6:37 AM, stephen shearer wrote: > Ground loops can be another issue. > I was having a "feed back" issue with my KX3/KXPA100 ans solved it > eliminating ground/power loops. DANGER, WILL ROBINSON! First, ain't no such thing as a "ground loop." The real cause of problems we BLAME on this fictional condition is failure to do proper bonding within our stations and all other "grounds" in our homes. BY LAW (Electrical Building Codes, usually a version of NEC or based on NEC), ALL grounds in any facility must be bonded together. At a minimum, all equipment plugged into the wall must have its chassis bonded to the green wire in its power cord. In a ham station, every chassis must be directly bonded to the others by short, fat copper, AND all equipment that will be interconnected with the station (rig, computer, audio interface) should get AC power from outlets that share the same green wire back to the breaker panel. Lots of detail on this in http://k9yc.com/GroundingAndAudio.pdf and in N0AX's ARRL book on the topic, on which we collaborated. 73, Jim K9YC From ned.mountain at mindspring.com Mon Jun 1 16:07:10 2020 From: ned.mountain at mindspring.com (Ned Mountain WC4X) Date: Mon, 1 Jun 2020 13:07:10 -0700 (MST) Subject: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; SWR issues) In-Reply-To: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> Message-ID: <1591042030771-0.post@n2.nabble.com> I had a similar issue with my K3s/KPA 1500 that defied logic. Without going into all the details, I finally sent both the K3s and KPA 1500 back to Elecraft to have them analyze it as a systems problem. It turned out to be a faulty 100W PA on the K3s that would generate very short high level transient pulses that somehow caused the fault. Since having that replaced all has been extremely stable for over 12 months. This problem always happened on 6 meters, sometimes on 10 meters, but never on any lower frequencies. Best of luck. Ned WC4X -- Sent from: http://elecraft.365791.n2.nabble.com/ From rmcgraw at blomand.net Mon Jun 1 16:48:12 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 1 Jun 2020 15:48:12 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: Based on my experience, balun power ratings are for MATCHED conditions.? It is rare that hams use a balun in a matched condition. ?? Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the output, while a 4:1 balun should see 200 ohms on the output and 50 ohms on the input.?? In the case of a resonant folded dipole, a 4:1 balun is typically operating in a nearly matched condition.??? All others combinations are unknown and random. I run about 500 watts on all bands.? My baluns are rated at 5KW!?? It takes 3 or 4 big hunkin' pieces of ferrite to attain this power level.?? My 6 meter balun is a 1/2 wavelength electrically of RG-213.? No ferrite! Buy or build a balun of your choice.? Using an IR temperature gun, measure the ambient temperature of the core.? Run about 1/2 rated power carrier for 30 to 60 seconds.? Measure the temperature again.?? If it is warm to hot, this is RF producing heat.?? And likely continuing will produce core failure.?? This is not a good balun for your application. One of my baluns work between the output of my KAT500 and the balanced feed line connected to the center of a 256 ft wire.? That antenna works 160M - 6M with zero issues.?? Now, I do run a hybrid balun being a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun for common mode rejection. Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are not at all a proper balun design ? A Guanella balun will have 2 cores with 2 windings and then another 2 separate cores with another 2 windings.? These are then wired to produce a 4:1 balun with good common mode rejection.??? Most "factory" 4:1 baluns are poorly designed and built junk. See https://www.dj0ip.de/balun-stuff/ for further references. 73 Bob, K4TAX On 6/1/2020 8:45 AM, Alan - G4GNX wrote: > I have a similar issue with ferrite 'balun' heating, although mostly > tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 > balun at the feed point, but also has a sleeve 'balun' consisting of 8 > ferrites wrapped in a plastic sleeve, about 3 feet from the feed > point. If I run the K3S at 100W, via the KPA500 in standby, then > through the KAT500 tuner, I see no problems. > > On increasing the power to 200W by using the KPA500 in Operate and > about 10W drive from the K3S, during a SSB 'over' the temperature of > the KPA500 rises and after a few minutes, the SWR readings on the > KPA500 and KAT500 start to rise. One of the Elecraft guys actually > very kindly went through my fault log and came to the conclusion that > the fault is with the antenna/feeder and I agree with him. What is > strange is that if I leave a solid carrier running at 200W, I can't > easily reproduce the issue and I wonder if its something being > affected by peak excursions with SSB? > > When things do start to go wrong, I can usually perform a manual tune > with the KAT500 and the fault will then not (mostly) be apparent. > > Anyway, I'm in the process of replacing the entire feeder with > Westflex 103 and much bigger ferrites. I will also replace the main > balun which is a 400W device for a 1KW device, as I think that running > the UK max of 400W may be pushing the spec of a 400W balun. Also, the > balun itself or connections to it may be faulty. > > The point now is that I have discovered some damage to the outer > covering of the sleeve 'balun' which may be the result of ferrites > overheating or may be the cause of movement of the ferrites thus > causing instability. Either way, heftier devices seem to be the order > of the day. > > Although the KPA500 temperature rise is somewhat expected, I feel it's > a bit higher over a short period than I would like and may be due to > reflected power. > > 73, > > Alan. G4GNX > > > ------ Original Message ------ > From: "David Olean" > To: "Peter Dougherty" > Cc: elecraft at mailman.qth.net > Sent: 01/06/2020 13:25:18 > Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; > SWR issues) > >> Hello Peter >> >> I suspect RFI as well. I do not have a KPA1500, so my advice is not >> worth much, but the fact that the fault only occurs when a signal is >> being radiated sends me a red flag.? I had a similar problem here >> with my SPE amplifier power output. I was measuring it on an LP-100A >> wattmeter.? It turns out that 1.8 MHz energy from the SPE amp >> radiated from my vertical antenna and? was getting into a new wire >> doublet antenna and coming back down the ladder line into the shack. >> The ladder line was about 7 inches from the power coupler for the >> LP-100A. RF caused the readings to go wacky and it looked like my >> amplifier was going postal! The problem was high rf fields next to >> the power meter coupler. >> >> Ferrite balun heating can be seen with a VSWR meter if you set the >> power at some intermediate level, key the amp up with a steady >> carrier, and watch for VSWR creeping up.? Loose pins in coax can also >> be a problem. They can heat up and disconnect or start arcing. Those >> problems do not typically show VSWR creep. They happen all at once >> usually. >> >> The KPA1500 works fine into a dummy load. (No RFI)? That is a big >> clue.?? Good luck and I hope you find the problem. Maybe an RF >> sniffer would detect the ingress point? >> >> 73 >> >> Dave K1WHS >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From lists at w2irt.net Mon Jun 1 17:25:46 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 1 Jun 2020 17:25:46 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: <071101d6385b$372688e0$a5739aa0$@w2irt.net> Your point is valid, however the underlying fact in my situation is that the new antenna with the new 1:1 current balun (i.e. feedline choke) is presenting **identically** to my old antenna that didn't have a balun. Neither better nor worse. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Bob McGraw K4TAX Sent: Monday, June 1, 2020 4:48 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] NOT the feedline Based on my experience, balun power ratings are for MATCHED conditions. It is rare that hams use a balun in a matched condition. Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the output, while a 4:1 balun should see 200 ohms on the output and 50 ohms on the input. In the case of a resonant folded dipole, a 4:1 balun is typically operating in a nearly matched condition. All others combinations are unknown and random. I run about 500 watts on all bands. My baluns are rated at 5KW! It takes 3 or 4 big hunkin' pieces of ferrite to attain this power level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. No ferrite! Buy or build a balun of your choice. Using an IR temperature gun, measure the ambient temperature of the core. Run about 1/2 rated power carrier for 30 to 60 seconds. Measure the temperature again. If it is warm to hot, this is RF producing heat. And likely continuing will produce core failure. This is not a good balun for your application. One of my baluns work between the output of my KAT500 and the balanced feed line connected to the center of a 256 ft wire. That antenna works 160M - 6M with zero issues. Now, I do run a hybrid balun being a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun for common mode rejection. Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are not at all a proper balun design A Guanella balun will have 2 cores with 2 windings and then another 2 separate cores with another 2 windings. These are then wired to produce a 4:1 balun with good common mode rejection. Most "factory" 4:1 baluns are poorly designed and built junk. See https://www.dj0ip.de/balun-stuff/ for further references. 73 Bob, K4TAX On 6/1/2020 8:45 AM, Alan - G4GNX wrote: > I have a similar issue with ferrite 'balun' heating, although mostly > tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 > balun at the feed point, but also has a sleeve 'balun' consisting of 8 > ferrites wrapped in a plastic sleeve, about 3 feet from the feed > point. If I run the K3S at 100W, via the KPA500 in standby, then > through the KAT500 tuner, I see no problems. > > On increasing the power to 200W by using the KPA500 in Operate and > about 10W drive from the K3S, during a SSB 'over' the temperature of > the KPA500 rises and after a few minutes, the SWR readings on the > KPA500 and KAT500 start to rise. One of the Elecraft guys actually > very kindly went through my fault log and came to the conclusion that > the fault is with the antenna/feeder and I agree with him. What is > strange is that if I leave a solid carrier running at 200W, I can't > easily reproduce the issue and I wonder if its something being > affected by peak excursions with SSB? > > When things do start to go wrong, I can usually perform a manual tune > with the KAT500 and the fault will then not (mostly) be apparent. > > Anyway, I'm in the process of replacing the entire feeder with > Westflex 103 and much bigger ferrites. I will also replace the main > balun which is a 400W device for a 1KW device, as I think that running > the UK max of 400W may be pushing the spec of a 400W balun. Also, the > balun itself or connections to it may be faulty. > > The point now is that I have discovered some damage to the outer > covering of the sleeve 'balun' which may be the result of ferrites > overheating or may be the cause of movement of the ferrites thus > causing instability. Either way, heftier devices seem to be the order > of the day. > > Although the KPA500 temperature rise is somewhat expected, I feel it's > a bit higher over a short period than I would like and may be due to > reflected power. > > 73, > > Alan. G4GNX > > > ------ Original Message ------ > From: "David Olean" > To: "Peter Dougherty" > Cc: elecraft at mailman.qth.net > Sent: 01/06/2020 13:25:18 > Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; > SWR issues) > >> Hello Peter >> >> I suspect RFI as well. I do not have a KPA1500, so my advice is not >> worth much, but the fact that the fault only occurs when a signal is >> being radiated sends me a red flag. I had a similar problem here >> with my SPE amplifier power output. I was measuring it on an LP-100A >> wattmeter. It turns out that 1.8 MHz energy from the SPE amp >> radiated from my vertical antenna and was getting into a new wire >> doublet antenna and coming back down the ladder line into the shack. >> The ladder line was about 7 inches from the power coupler for the >> LP-100A. RF caused the readings to go wacky and it looked like my >> amplifier was going postal! The problem was high rf fields next to >> the power meter coupler. >> >> Ferrite balun heating can be seen with a VSWR meter if you set the >> power at some intermediate level, key the amp up with a steady >> carrier, and watch for VSWR creeping up. Loose pins in coax can also >> be a problem. They can heat up and disconnect or start arcing. Those >> problems do not typically show VSWR creep. They happen all at once >> usually. >> >> The KPA1500 works fine into a dummy load. (No RFI) That is a big >> clue. Good luck and I hope you find the problem. Maybe an RF >> sniffer would detect the ingress point? >> >> 73 >> >> Dave K1WHS >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > rmcgraw at blomand.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From k6dgw at foothill.net Mon Jun 1 17:40:40 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Mon, 1 Jun 2020 14:40:40 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> Nearly same experience Bob:? Sloping V, 135 ft legs, from top of 80 ft tower fed with homemade 600 ohm open wire using a DX Engineering 4:1 "balun" [a strange, usually misunderstood piece of electronic apparatus often used for the wrong reasons] rated at 10 KW.? It warmed up noticeably at 1.2 KW RTTY use.? It helps to remember that one can saturate a ferrite core [especially when very hot] which creates a racket reminiscent of a non-synchronous spark gap TX. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/1/2020 1:48 PM, Bob McGraw K4TAX wrote: > Based on my experience, balun power ratings are for MATCHED > conditions. It is rare that hams use a balun in a matched condition. > ?? Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the > output, while a 4:1 balun should see 200 ohms on the output and 50 > ohms on the input.?? In the case of a resonant folded dipole, a 4:1 > balun is typically operating in a nearly matched condition. All others > combinations are unknown and random. > > I run about 500 watts on all bands.? My baluns are rated at 5KW! It > takes 3 or 4 big hunkin' pieces of ferrite to attain this power > level.?? My 6 meter balun is a 1/2 wavelength electrically of RG-213.? > No ferrite! > > Buy or build a balun of your choice.? Using an IR temperature gun, > measure the ambient temperature of the core.? Run about 1/2 rated > power carrier for 30 to 60 seconds.? Measure the temperature again.?? > If it is warm to hot, this is RF producing heat.?? And likely > continuing will produce core failure.?? This is not a good balun for > your application. > > One of my baluns work between the output of my KAT500 and the balanced > feed line connected to the center of a 256 ft wire.? That antenna > works 160M - 6M with zero issues.?? Now, I do run a hybrid balun being > a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun > for common mode rejection. > > Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are > not at all a proper balun design ? A Guanella balun will have 2 cores > with 2 windings and then another 2 separate cores with another 2 > windings.? These are then wired to produce a 4:1 balun with good > common mode rejection.??? Most "factory" 4:1 baluns are poorly > designed and built junk. > > See https://www.dj0ip.de/balun-stuff/ for further references. > > 73 > > Bob, K4TAX From w3tb.ted at gmail.com Mon Jun 1 17:59:06 2020 From: w3tb.ted at gmail.com (Ted Edwards W3TB) Date: Mon, 1 Jun 2020 16:59:06 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> Message-ID: I am following this with great interest. Like Alan G0GNX, I also use an OCF, RG-8X out to the current balun in this case, 300 ohm to the antenna. K3, KPA-500 and KAT-500. If I am running stations in a contest on 40m and also 80m CW, It "appears" that my VSWR rises after a half hour and then the KAT-500 starts to try to spontaneously retune. Doesn't happen on 20m and up. This past weekend in CQ WPX, I reduced drive so that output was about 300 watts and it all became tame. I had thought that it was a heating of the RG-8X; then I changed my mind to the current balun from Radiowavz that is rated for 1.5 KW. I think it is the balun just getting hot out there. I had used a W2AU 4:1 balun with my OCF, which is a voltage balun but I didn't know about that -- for upwards of 40 years and with the Elecraft equipment for about 4 years since I got the amp/tuner. I just switched to a current balun last year with one that I bought at Dayton. I would have expected more problem with the voltage balun than with the current balun. I could change back to the W2AU if needed. Interesting stuff, so I am reading along. And my thanks to all of you. On Mon, Jun 1, 2020 at 4:42 PM Fred Jensen wrote: > Nearly same experience Bob: Sloping V, 135 ft legs, from top of 80 ft > tower fed with homemade 600 ohm open wire using a DX Engineering 4:1 > "balun" [a strange, usually misunderstood piece of electronic apparatus > often used for the wrong reasons] rated at 10 KW. It warmed up > noticeably at 1.2 KW RTTY use. It helps to remember that one can > saturate a ferrite core [especially when very hot] which creates a > racket reminiscent of a non-synchronous spark gap TX. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/1/2020 1:48 PM, Bob McGraw K4TAX wrote: > > Based on my experience, balun power ratings are for MATCHED > > conditions. It is rare that hams use a balun in a matched condition. > > Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the > > output, while a 4:1 balun should see 200 ohms on the output and 50 > > ohms on the input. In the case of a resonant folded dipole, a 4:1 > > balun is typically operating in a nearly matched condition. All others > > combinations are unknown and random. > > > > I run about 500 watts on all bands. My baluns are rated at 5KW! It > > takes 3 or 4 big hunkin' pieces of ferrite to attain this power > > level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. > > No ferrite! > > > > Buy or build a balun of your choice. Using an IR temperature gun, > > measure the ambient temperature of the core. Run about 1/2 rated > > power carrier for 30 to 60 seconds. Measure the temperature again. > > If it is warm to hot, this is RF producing heat. And likely > > continuing will produce core failure. This is not a good balun for > > your application. > > > > One of my baluns work between the output of my KAT500 and the balanced > > feed line connected to the center of a 256 ft wire. That antenna > > works 160M - 6M with zero issues. Now, I do run a hybrid balun being > > a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun > > for common mode rejection. > > > > Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are > > not at all a proper balun design A Guanella balun will have 2 cores > > with 2 windings and then another 2 separate cores with another 2 > > windings. These are then wired to produce a 4:1 balun with good > > common mode rejection. Most "factory" 4:1 baluns are poorly > > designed and built junk. > > > > See https://www.dj0ip.de/balun-stuff/ for further references. > > > > 73 > > > > Bob, K4TAX > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w3tb.ted at gmail.com -- 73 de Ted Edwards, W3TB and G?PWW and thinking about operating CW: "Do today what others won't, so you can do tomorrow what others can't." From jackbrindle at me.com Mon Jun 1 18:08:44 2020 From: jackbrindle at me.com (Jack Brindle) Date: Mon, 1 Jun 2020 15:08:44 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: <071101d6385b$372688e0$a5739aa0$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> Message-ID: Lets take another try at this. There still isn?t enough information in your emails to really determine what might be going on. From the amplifier?s viewpoint, *everything* from the antenna jack on the back of the amplifier is part of the antenna system. So far we know it consists of some section of RG213, another of LM400, a balun of some sort, and an antenna. There are undoubtedly some adapters and couplers in between, and perhaps a few other things. Knowing exactly what these are is critical in making any suggestions. Every few months since we released the KPA500 we have seen emails from folks who are certain that the amplifier is causing a problem. We all build our stations for low power, then decide that adding an amplifier is needed, so we buy one. We then are faced with issues driving a lot more power into the antenna system. These are caused by deficiencies in that system, which was sized for much lower power, and almost always will contain at least one component that cannot handle the power. The last part of the KPA500 before power goes out is the directional coupler (note: it is after the low pass filters), the KPA1500 has its ATU after those components. With the KPA1500 ATU in bypass, the directional coupler becomes the last component. This is important because the directional coupler will see any problem in the antenna system, and report it. No amplifier component is in the way to modify things, we get a true picture of what follows the amplifier. So, when something glitches in the antenna system (usually an arc in a coupler, or an overheated toroid in a balun or matching unit), the directional coupler picks it up and moves to protect the amplifier. With this in mind, place the KPA1500 ATU into bypass and perform the test. When you see the fault occur, you then need to look at the entire antenna system, starting at the antenna jack on the back of the KPA1500. All of the components are suspect, even a new part (balun, antenna, etc), which may have been affected by high power right after installation. Be sure to looks at the RG213, and at the coupler to the LM400. You have made reference to shack feed-through, what is that, and does it use components that might have issues? As in past cases, find the problem in the overall antenna system, and the KPA1500 will be much happier, as will you. So, before we can help you, we need to know the details of the system. 73! Jack, W6FB Elecraft Engineering > On Jun 1, 2020, at 2:25 PM, Peter Dougherty wrote: > > Your point is valid, however the underlying fact in my situation is that the new antenna with the new 1:1 current balun (i.e. feedline choke) is presenting **identically** to my old antenna that didn't have a balun. Neither better nor worse. > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Bob McGraw K4TAX > Sent: Monday, June 1, 2020 4:48 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] NOT the feedline > > Based on my experience, balun power ratings are for MATCHED conditions. It is rare that hams use a balun in a matched condition. Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the output, while a > 4:1 balun should see 200 ohms on the output and 50 ohms on the input. In the case of a resonant folded dipole, a 4:1 balun is typically operating in a nearly matched condition. All others combinations are unknown and random. > > I run about 500 watts on all bands. My baluns are rated at 5KW! It takes 3 or 4 big hunkin' pieces of ferrite to attain this power level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. No ferrite! > > Buy or build a balun of your choice. Using an IR temperature gun, measure the ambient temperature of the core. Run about 1/2 rated power carrier for 30 to 60 seconds. Measure the temperature again. If it is warm to hot, this is RF producing heat. And likely continuing will produce core failure. This is not a good balun for your application. > > One of my baluns work between the output of my KAT500 and the balanced feed line connected to the center of a 256 ft wire. That antenna works 160M - 6M with zero issues. Now, I do run a hybrid balun being a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun for common mode rejection. > > Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are not at all a proper balun design A Guanella balun will have 2 cores with 2 windings and then another 2 separate cores with another 2 windings. These are then wired to produce a 4:1 balun with good common mode rejection. Most "factory" 4:1 baluns are poorly designed and built junk. > > See https://www.dj0ip.de/balun-stuff/ for further references. > > 73 > > Bob, K4TAX > > > On 6/1/2020 8:45 AM, Alan - G4GNX wrote: >> I have a similar issue with ferrite 'balun' heating, although mostly >> tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 >> balun at the feed point, but also has a sleeve 'balun' consisting of 8 >> ferrites wrapped in a plastic sleeve, about 3 feet from the feed >> point. If I run the K3S at 100W, via the KPA500 in standby, then >> through the KAT500 tuner, I see no problems. >> >> On increasing the power to 200W by using the KPA500 in Operate and >> about 10W drive from the K3S, during a SSB 'over' the temperature of >> the KPA500 rises and after a few minutes, the SWR readings on the >> KPA500 and KAT500 start to rise. One of the Elecraft guys actually >> very kindly went through my fault log and came to the conclusion that >> the fault is with the antenna/feeder and I agree with him. What is >> strange is that if I leave a solid carrier running at 200W, I can't >> easily reproduce the issue and I wonder if its something being >> affected by peak excursions with SSB? >> >> When things do start to go wrong, I can usually perform a manual tune >> with the KAT500 and the fault will then not (mostly) be apparent. >> >> Anyway, I'm in the process of replacing the entire feeder with >> Westflex 103 and much bigger ferrites. I will also replace the main >> balun which is a 400W device for a 1KW device, as I think that running >> the UK max of 400W may be pushing the spec of a 400W balun. Also, the >> balun itself or connections to it may be faulty. >> >> The point now is that I have discovered some damage to the outer >> covering of the sleeve 'balun' which may be the result of ferrites >> overheating or may be the cause of movement of the ferrites thus >> causing instability. Either way, heftier devices seem to be the order >> of the day. >> >> Although the KPA500 temperature rise is somewhat expected, I feel it's >> a bit higher over a short period than I would like and may be due to >> reflected power. >> >> 73, >> >> Alan. G4GNX >> >> >> ------ Original Message ------ >> From: "David Olean" >> To: "Peter Dougherty" >> Cc: elecraft at mailman.qth.net >> Sent: 01/06/2020 13:25:18 >> Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on 6m; >> SWR issues) >> >>> Hello Peter >>> >>> I suspect RFI as well. I do not have a KPA1500, so my advice is not >>> worth much, but the fact that the fault only occurs when a signal is >>> being radiated sends me a red flag. I had a similar problem here >>> with my SPE amplifier power output. I was measuring it on an LP-100A >>> wattmeter. It turns out that 1.8 MHz energy from the SPE amp >>> radiated from my vertical antenna and was getting into a new wire >>> doublet antenna and coming back down the ladder line into the shack. >>> The ladder line was about 7 inches from the power coupler for the >>> LP-100A. RF caused the readings to go wacky and it looked like my >>> amplifier was going postal! The problem was high rf fields next to >>> the power meter coupler. >>> >>> Ferrite balun heating can be seen with a VSWR meter if you set the >>> power at some intermediate level, key the amp up with a steady >>> carrier, and watch for VSWR creeping up. Loose pins in coax can also >>> be a problem. They can heat up and disconnect or start arcing. Those >>> problems do not typically show VSWR creep. They happen all at once >>> usually. >>> >>> The KPA1500 works fine into a dummy load. (No RFI) That is a big >>> clue. Good luck and I hope you find the problem. Maybe an RF >>> sniffer would detect the ingress point? >>> >>> 73 >>> >>> Dave K1WHS >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> rmcgraw at blomand.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From gkidder at ilstu.edu Mon Jun 1 18:17:33 2020 From: gkidder at ilstu.edu (George Kidder) Date: Mon, 1 Jun 2020 18:17:33 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> Message-ID: <1aef9a86-834c-01eb-81b0-d9b851dff69b@ilstu.edu> One of my antennas is a commercial "G5RV" fed with 33' of 450 ohm ladder line, terminated in a PL-259 pair, with coax from there to the shack.? Apparently this combination results in very high RF voltage at the PL-259, and it arcs over at 1000 W (not from an Elecraft amp!).? This combo goes wild when I attempt high power on 80M, although it is stable at 100 W.? Just another thing to watch out for! 73 - George, W3HBM On 6/1/2020 5:59 PM, Ted Edwards W3TB wrote: > [This message came from an external source. If suspicious, report to abuse at ilstu.edu] > > I am following this with great interest. > Like Alan G0GNX, I also use an OCF, RG-8X out to the current balun in this > case, 300 ohm to the antenna. K3, KPA-500 and KAT-500. > > If I am running stations in a contest on 40m and also 80m CW, It "appears" > that my VSWR rises after a half hour and then the KAT-500 starts to try to > spontaneously retune. Doesn't happen on 20m and up. This past weekend in > CQ WPX, I reduced drive so that output was about 300 watts and it all > became tame. > > I had thought that it was a heating of the RG-8X; then I changed my mind to > the current balun from Radiowavz that is rated for 1.5 KW. I think it is > the balun just getting hot out there. I had used a W2AU 4:1 balun with my > OCF, which is a voltage balun but I didn't know about that -- for upwards > of 40 years and with the Elecraft equipment for about 4 years since I got > the amp/tuner. I just switched to a current balun last year with one that > I bought at Dayton. > > I would have expected more problem with the voltage balun than with the > current balun. I could change back to the W2AU if needed. > > Interesting stuff, so I am reading along. And my thanks to all of you. > > On Mon, Jun 1, 2020 at 4:42 PM Fred Jensen wrote: > >> Nearly same experience Bob: Sloping V, 135 ft legs, from top of 80 ft >> tower fed with homemade 600 ohm open wire using a DX Engineering 4:1 >> "balun" [a strange, usually misunderstood piece of electronic apparatus >> often used for the wrong reasons] rated at 10 KW. It warmed up >> noticeably at 1.2 KW RTTY use. It helps to remember that one can >> saturate a ferrite core [especially when very hot] which creates a >> racket reminiscent of a non-synchronous spark gap TX. >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> On 6/1/2020 1:48 PM, Bob McGraw K4TAX wrote: >>> Based on my experience, balun power ratings are for MATCHED >>> conditions. It is rare that hams use a balun in a matched condition. >>> Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the >>> output, while a 4:1 balun should see 200 ohms on the output and 50 >>> ohms on the input. In the case of a resonant folded dipole, a 4:1 >>> balun is typically operating in a nearly matched condition. All others >>> combinations are unknown and random. >>> >>> I run about 500 watts on all bands. My baluns are rated at 5KW! It >>> takes 3 or 4 big hunkin' pieces of ferrite to attain this power >>> level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. >>> No ferrite! >>> >>> Buy or build a balun of your choice. Using an IR temperature gun, >>> measure the ambient temperature of the core. Run about 1/2 rated >>> power carrier for 30 to 60 seconds. Measure the temperature again. >>> If it is warm to hot, this is RF producing heat. And likely >>> continuing will produce core failure. This is not a good balun for >>> your application. >>> >>> One of my baluns work between the output of my KAT500 and the balanced >>> feed line connected to the center of a 256 ft wire. That antenna >>> works 160M - 6M with zero issues. Now, I do run a hybrid balun being >>> a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun >>> for common mode rejection. >>> >>> Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are >>> not at all a proper balun design A Guanella balun will have 2 cores >>> with 2 windings and then another 2 separate cores with another 2 >>> windings. These are then wired to produce a 4:1 balun with good >>> common mode rejection. Most "factory" 4:1 baluns are poorly >>> designed and built junk. >>> >>> See https://www.dj0ip.de/balun-stuff/ for further references. >>> >>> 73 >>> >>> Bob, K4TAX >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w3tb.ted at gmail.com > > > -- > 73 de Ted Edwards, W3TB and G?PWW > > and thinking about operating CW: > "Do today what others won't, > so you can do tomorrow what others can't." > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gkidder at ilstu.edu From wunder at wunderwood.org Mon Jun 1 18:31:55 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Mon, 1 Jun 2020 15:31:55 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: <1aef9a86-834c-01eb-81b0-d9b851dff69b@ilstu.edu> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> <1aef9a86-834c-01eb-81b0-d9b851dff69b@ilstu.edu> Message-ID: <58A226A9-B090-441C-A0CD-D5EF0D699683@wunderwood.org> Even with a 1:1 SWR, 1000 W is pretty close to the 500 V peak rating for a UHF connector. Type N connectors are rated at 1500 V peak. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 1, 2020, at 3:17 PM, George Kidder wrote: > > One of my antennas is a commercial "G5RV" fed with 33' of 450 ohm ladder line, terminated in a PL-259 pair, with coax from there to the shack. Apparently this combination results in very high RF voltage at the PL-259, and it arcs over at 1000 W (not from an Elecraft amp!). This combo goes wild when I attempt high power on 80M, although it is stable at 100 W. Just another thing to watch out for! > > 73 - George, W3HBM > > On 6/1/2020 5:59 PM, Ted Edwards W3TB wrote: >> [This message came from an external source. If suspicious, report to abuse at ilstu.edu] >> >> I am following this with great interest. >> Like Alan G0GNX, I also use an OCF, RG-8X out to the current balun in this >> case, 300 ohm to the antenna. K3, KPA-500 and KAT-500. >> >> If I am running stations in a contest on 40m and also 80m CW, It "appears" >> that my VSWR rises after a half hour and then the KAT-500 starts to try to >> spontaneously retune. Doesn't happen on 20m and up. This past weekend in >> CQ WPX, I reduced drive so that output was about 300 watts and it all >> became tame. >> >> I had thought that it was a heating of the RG-8X; then I changed my mind to >> the current balun from Radiowavz that is rated for 1.5 KW. I think it is >> the balun just getting hot out there. I had used a W2AU 4:1 balun with my >> OCF, which is a voltage balun but I didn't know about that -- for upwards >> of 40 years and with the Elecraft equipment for about 4 years since I got >> the amp/tuner. I just switched to a current balun last year with one that >> I bought at Dayton. >> >> I would have expected more problem with the voltage balun than with the >> current balun. I could change back to the W2AU if needed. >> >> Interesting stuff, so I am reading along. And my thanks to all of you. >> >> On Mon, Jun 1, 2020 at 4:42 PM Fred Jensen wrote: >> >>> Nearly same experience Bob: Sloping V, 135 ft legs, from top of 80 ft >>> tower fed with homemade 600 ohm open wire using a DX Engineering 4:1 >>> "balun" [a strange, usually misunderstood piece of electronic apparatus >>> often used for the wrong reasons] rated at 10 KW. It warmed up >>> noticeably at 1.2 KW RTTY use. It helps to remember that one can >>> saturate a ferrite core [especially when very hot] which creates a >>> racket reminiscent of a non-synchronous spark gap TX. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>> On 6/1/2020 1:48 PM, Bob McGraw K4TAX wrote: >>>> Based on my experience, balun power ratings are for MATCHED >>>> conditions. It is rare that hams use a balun in a matched condition. >>>> Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the >>>> output, while a 4:1 balun should see 200 ohms on the output and 50 >>>> ohms on the input. In the case of a resonant folded dipole, a 4:1 >>>> balun is typically operating in a nearly matched condition. All others >>>> combinations are unknown and random. >>>> >>>> I run about 500 watts on all bands. My baluns are rated at 5KW! It >>>> takes 3 or 4 big hunkin' pieces of ferrite to attain this power >>>> level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. >>>> No ferrite! >>>> >>>> Buy or build a balun of your choice. Using an IR temperature gun, >>>> measure the ambient temperature of the core. Run about 1/2 rated >>>> power carrier for 30 to 60 seconds. Measure the temperature again. >>>> If it is warm to hot, this is RF producing heat. And likely >>>> continuing will produce core failure. This is not a good balun for >>>> your application. >>>> >>>> One of my baluns work between the output of my KAT500 and the balanced >>>> feed line connected to the center of a 256 ft wire. That antenna >>>> works 160M - 6M with zero issues. Now, I do run a hybrid balun being >>>> a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun >>>> for common mode rejection. >>>> >>>> Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are >>>> not at all a proper balun design A Guanella balun will have 2 cores >>>> with 2 windings and then another 2 separate cores with another 2 >>>> windings. These are then wired to produce a 4:1 balun with good >>>> common mode rejection. Most "factory" 4:1 baluns are poorly >>>> designed and built junk. >>>> >>>> See https://www.dj0ip.de/balun-stuff/ for further references. >>>> >>>> 73 >>>> >>>> Bob, K4TAX >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to w3tb.ted at gmail.com >> >> >> -- >> 73 de Ted Edwards, W3TB and G?PWW >> >> and thinking about operating CW: >> "Do today what others won't, >> so you can do tomorrow what others can't." >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to gkidder at ilstu.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From dave at nk7z.net Mon Jun 1 18:56:36 2020 From: dave at nk7z.net (Dave Cole) Date: Mon, 1 Jun 2020 15:56:36 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> Message-ID: Is it possible that Common mode is getting into the amp, and forcing a fault? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/1/20 2:40 PM, Fred Jensen wrote: > Nearly same experience Bob:? Sloping V, 135 ft legs, from top of 80 ft > tower fed with homemade 600 ohm open wire using a DX Engineering 4:1 > "balun" [a strange, usually misunderstood piece of electronic apparatus > often used for the wrong reasons] rated at 10 KW.? It warmed up > noticeably at 1.2 KW RTTY use.? It helps to remember that one can > saturate a ferrite core [especially when very hot] which creates a > racket reminiscent of a non-synchronous spark gap TX. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/1/2020 1:48 PM, Bob McGraw K4TAX wrote: >> Based on my experience, balun power ratings are for MATCHED >> conditions. It is rare that hams use a balun in a matched condition. >> ?? Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the >> output, while a 4:1 balun should see 200 ohms on the output and 50 >> ohms on the input.?? In the case of a resonant folded dipole, a 4:1 >> balun is typically operating in a nearly matched condition. All others >> combinations are unknown and random. >> >> I run about 500 watts on all bands.? My baluns are rated at 5KW! It >> takes 3 or 4 big hunkin' pieces of ferrite to attain this power >> level.?? My 6 meter balun is a 1/2 wavelength electrically of RG-213. >> No ferrite! >> >> Buy or build a balun of your choice.? Using an IR temperature gun, >> measure the ambient temperature of the core.? Run about 1/2 rated >> power carrier for 30 to 60 seconds.? Measure the temperature again. If >> it is warm to hot, this is RF producing heat.?? And likely continuing >> will produce core failure.?? This is not a good balun for your >> application. >> >> One of my baluns work between the output of my KAT500 and the balanced >> feed line connected to the center of a 256 ft wire.? That antenna >> works 160M - 6M with zero issues.?? Now, I do run a hybrid balun being >> a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun >> for common mode rejection. >> >> Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are >> not at all a proper balun design ? A Guanella balun will have 2 cores >> with 2 windings and then another 2 separate cores with another 2 >> windings.? These are then wired to produce a 4:1 balun with good >> common mode rejection.??? Most "factory" 4:1 baluns are poorly >> designed and built junk. >> >> See https://www.dj0ip.de/balun-stuff/ for further references. >> >> 73 >> >> Bob, K4TAX > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net From ab7echo at gmail.com Mon Jun 1 19:30:38 2020 From: ab7echo at gmail.com (David Gilbert) Date: Mon, 1 Jun 2020 16:30:38 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> Message-ID: I had an antenna for 160m that had a fairly high SWR at the feedpoint, but was easy to match to 50 ohms with a series inductor less than 30 feet further down the line toward the shack. I put a common mode choke per K9YC's designs at the antenna feedpoint, though, and even though it was actually two chokes in series (two large cores with separate windings) that should easily handle 5 KW under matched conditions, at 1.5 KW it heated up in less than two seconds to put the QRO Tech HF-2500DX amp into a fault. I could have moved the choke to the shack side of the matching inductor, but I decided it was best to just fix the antenna. No problems after I did. Common mode chokes don't need high saturation current to get hot (and that's rarely the problem anyway) ... high SWR voltages work just fine for that. And at high power it can happen in a very brief period of time. Everyone stay safe, Dave AB7E > From w3tb.ted at gmail.com Mon Jun 1 20:08:40 2020 From: w3tb.ted at gmail.com (Ted Edwards W3TB) Date: Mon, 1 Jun 2020 19:08:40 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> Message-ID: Back to Bob K4TAX I had a common mode current problem when I lived in Virginia and ran 100 watts barefoot, and it came as I could not do a significant angle away from the antenna --- which I eventually solved. I really do love the OCF idea. Through modeling it and patterns and then careful selection of trees for directionality, I have been able to land the lobes on Europe, South America, and East Asia for 40m, 20m, and 15m with upwards of 8 dBi --- not too shabby for a wire antenna. I have some LMR-400 and RG-9 B/U here and plan to change out the coax. I no longer expect that work to solve the issue, so I am looking at baluns. While it is a change back from a current balun to voltage balun, I must may do it. Thanks for all the good wisdom, guys! On Mon, Jun 1, 2020 at 6:33 PM David Gilbert wrote: > I had an antenna for 160m that had a fairly high SWR at the feedpoint, but > was easy to match to 50 ohms with a series inductor less than 30 feet > further down the line toward the shack. I put a common mode choke per > K9YC's designs at the antenna feedpoint, though, and even though it was > actually two chokes in series (two large cores with separate windings) that > should easily handle 5 KW under matched conditions, at 1.5 KW it heated up > in less than two seconds to put the QRO Tech HF-2500DX amp into a fault. I > could have moved the choke to the shack side of the matching inductor, but > I decided it was best to just fix the antenna. No problems after I did. > > Common mode chokes don't need high saturation current to get hot (and > that's rarely the problem anyway) ... high SWR voltages work just fine for > that. And at high power it can happen in a very brief period of time. > > Everyone stay safe, > Dave AB7E > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w3tb.ted at gmail.com > -- 73 de Ted Edwards, W3TB and G?PWW and thinking about operating CW: "Do today what others won't, so you can do tomorrow what others can't." From lists at w2irt.net Mon Jun 1 20:47:27 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 1 Jun 2020 20:47:27 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> Message-ID: <073001d63877$63b1f900$2b15eb00$@w2irt.net> Thanks for the reply, Jack. Here's a FULL summary of what is in the line at this moment from the jack on up. PL-259 (soldered, Amphenol 83-1SP as all are) to about 2 feet of RG-213 feeding into a Ten-Tec Tuner, which is being used only as an antenna switch and is in bypass. This is needed because the power supply fan noise on the KPA-1500 is just so overwhelming that I can only power it on when needed. I am primarily an HF operator, so ANT-1 is reserved for my HF stack. If I put the 6m antenna on ANT-2, I would need to keep the amp running. So everything goes out on ANT-1, through the TT-238. From there, one feedline goes to the HF stack and the other to the 6m output. It gets SLIGHTLY better if I go directly from the KPA-1500 to the input box, as follows but I still experience faults. >From there, a PL-259, and 7 or 8 feet of RG-213. Another PL-259, an Amphenol barrel connector in the input box, PL259, then approximately 65 or 70 feet of Commscope-branded LMR-400. PL-259 from that is connected to an Amphenol SO-239 female-to-N-Male, the choke balun, then the driven loop element to the antenna. As of Tuesday morning this will change as follows. KPA-1500 ANT-1 out, PL-259 and about 40' of Davis BuryFlex out to the remote antenna switch at the base of the HF stack. From there, about 25 more feet of BuryFlex, a barrel connector then the LMR-400 up to the 6m antenna. This will basically just be an experiment to see if there's any improvement; I'll be bypassing both the old Ten-Tec tuner/switch and the inlet box, and routing via the HF signal path and automatic antenna switch. Adding 65' of BuryFlex to the path strikes me as adding measurable and fairly significant loss to an otherwise really good, quiet antenna system, but if it lets me operate without having to worry about hard faults all the time then I'll take that as a tradeoff. - pjd -----Original Message----- From: Jack Brindle Sent: Monday, June 1, 2020 6:09 PM To: Peter Dougherty Cc: Bob McGraw K4TAX ; elecraft at mailman.qth.net Subject: Re: [Elecraft] NOT the feedline Lets take another try at this. There still isn?t enough information in your emails to really determine what might be going on. >From the amplifier?s viewpoint, *everything* from the antenna jack on the back of the amplifier is part of the antenna system. So far we know it consists of some section of RG213, another of LM400, a balun of some sort, and an antenna. There are undoubtedly some adapters and couplers in between, and perhaps a few other things. Knowing exactly what these are is critical in making any suggestions. Every few months since we released the KPA500 we have seen emails from folks who are certain that the amplifier is causing a problem. We all build our stations for low power, then decide that adding an amplifier is needed, so we buy one. We then are faced with issues driving a lot more power into the antenna system. These are caused by deficiencies in that system, which was sized for much lower power, and almost always will contain at least one component that cannot handle the power. The last part of the KPA500 before power goes out is the directional coupler (note: it is after the low pass filters), the KPA1500 has its ATU after those components. With the KPA1500 ATU in bypass, the directional coupler becomes the last component. This is important because the directional coupler will see any problem in the antenna system, and report it. No amplifier component is in the way to modify things, we get a true picture of what follows the amplifier. So, when something glitches in the antenna system (usually an arc in a coupler, or an overheated toroid in a balun or matching unit), the directional coupler picks it up and moves to protect the amplifier. With this in mind, place the KPA1500 ATU into bypass and perform the test. When you see the fault occur, you then need to look at the entire antenna system, starting at the antenna jack on the back of the KPA1500. All of the components are suspect, even a new part (balun, antenna, etc), which may have been affected by high power right after installation. Be sure to looks at the RG213, and at the coupler to the LM400. You have made reference to shack feed-through, what is that, and does it use components that might have issues? As in past cases, find the problem in the overall antenna system, and the KPA1500 will be much happier, as will you. So, before we can help you, we need to know the details of the system. 73! Jack, W6FB Elecraft Engineering > On Jun 1, 2020, at 2:25 PM, Peter Dougherty wrote: > > Your point is valid, however the underlying fact in my situation is that the new antenna with the new 1:1 current balun (i.e. feedline choke) is presenting **identically** to my old antenna that didn't have a balun. Neither better nor worse. > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On Behalf Of Bob McGraw K4TAX > Sent: Monday, June 1, 2020 4:48 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] NOT the feedline > > Based on my experience, balun power ratings are for MATCHED conditions. It is rare that hams use a balun in a matched condition. Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the output, while a > 4:1 balun should see 200 ohms on the output and 50 ohms on the input. In the case of a resonant folded dipole, a 4:1 balun is typically operating in a nearly matched condition. All others combinations are unknown and random. > > I run about 500 watts on all bands. My baluns are rated at 5KW! It takes 3 or 4 big hunkin' pieces of ferrite to attain this power level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. No ferrite! > > Buy or build a balun of your choice. Using an IR temperature gun, measure the ambient temperature of the core. Run about 1/2 rated power carrier for 30 to 60 seconds. Measure the temperature again. If it is warm to hot, this is RF producing heat. And likely continuing will produce core failure. This is not a good balun for your application. > > One of my baluns work between the output of my KAT500 and the balanced feed line connected to the center of a 256 ft wire. That antenna works 160M - 6M with zero issues. Now, I do run a hybrid balun being a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun for common mode rejection. > > Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are not at all a proper balun design A Guanella balun will have 2 cores with 2 windings and then another 2 separate cores with another 2 windings. These are then wired to produce a 4:1 balun with good common mode rejection. Most "factory" 4:1 baluns are poorly designed and built junk. > > See https://www.dj0ip.de/balun-stuff/ for further references. > > 73 > > Bob, K4TAX > > > On 6/1/2020 8:45 AM, Alan - G4GNX wrote: >> I have a similar issue with ferrite 'balun' heating, although mostly >> tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 >> balun at the feed point, but also has a sleeve 'balun' consisting of >> 8 ferrites wrapped in a plastic sleeve, about 3 feet from the feed >> point. If I run the K3S at 100W, via the KPA500 in standby, then >> through the KAT500 tuner, I see no problems. >> >> On increasing the power to 200W by using the KPA500 in Operate and >> about 10W drive from the K3S, during a SSB 'over' the temperature of >> the KPA500 rises and after a few minutes, the SWR readings on the >> KPA500 and KAT500 start to rise. One of the Elecraft guys actually >> very kindly went through my fault log and came to the conclusion that >> the fault is with the antenna/feeder and I agree with him. What is >> strange is that if I leave a solid carrier running at 200W, I can't >> easily reproduce the issue and I wonder if its something being >> affected by peak excursions with SSB? >> >> When things do start to go wrong, I can usually perform a manual tune >> with the KAT500 and the fault will then not (mostly) be apparent. >> >> Anyway, I'm in the process of replacing the entire feeder with >> Westflex 103 and much bigger ferrites. I will also replace the main >> balun which is a 400W device for a 1KW device, as I think that >> running the UK max of 400W may be pushing the spec of a 400W balun. >> Also, the balun itself or connections to it may be faulty. >> >> The point now is that I have discovered some damage to the outer >> covering of the sleeve 'balun' which may be the result of ferrites >> overheating or may be the cause of movement of the ferrites thus >> causing instability. Either way, heftier devices seem to be the order >> of the day. >> >> Although the KPA500 temperature rise is somewhat expected, I feel >> it's a bit higher over a short period than I would like and may be >> due to reflected power. >> >> 73, >> >> Alan. G4GNX >> >> >> ------ Original Message ------ >> From: "David Olean" >> To: "Peter Dougherty" >> Cc: elecraft at mailman.qth.net >> Sent: 01/06/2020 13:25:18 >> Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on >> 6m; SWR issues) >> >>> Hello Peter >>> >>> I suspect RFI as well. I do not have a KPA1500, so my advice is not >>> worth much, but the fact that the fault only occurs when a signal is >>> being radiated sends me a red flag. I had a similar problem here >>> with my SPE amplifier power output. I was measuring it on an LP-100A >>> wattmeter. It turns out that 1.8 MHz energy from the SPE amp >>> radiated from my vertical antenna and was getting into a new wire >>> doublet antenna and coming back down the ladder line into the shack. >>> The ladder line was about 7 inches from the power coupler for the >>> LP-100A. RF caused the readings to go wacky and it looked like my >>> amplifier was going postal! The problem was high rf fields next to >>> the power meter coupler. >>> >>> Ferrite balun heating can be seen with a VSWR meter if you set the >>> power at some intermediate level, key the amp up with a steady >>> carrier, and watch for VSWR creeping up. Loose pins in coax can >>> also be a problem. They can heat up and disconnect or start arcing. >>> Those problems do not typically show VSWR creep. They happen all at >>> once usually. >>> >>> The KPA1500 works fine into a dummy load. (No RFI) That is a big >>> clue. Good luck and I hope you find the problem. Maybe an RF >>> sniffer would detect the ingress point? >>> >>> 73 >>> >>> Dave K1WHS >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email >> list: http://www.qsl.net/donate.html Message delivered to >> rmcgraw at blomand.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > lists at w2irt.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > jackbrindle at me.com From jackbrindle at me.com Mon Jun 1 21:29:03 2020 From: jackbrindle at me.com (Jack Brindle) Date: Mon, 1 Jun 2020 18:29:03 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: <073001d63877$63b1f900$2b15eb00$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: Is it the 3 element 6m LFA? That is an interesting antenna. Which of the baluns did you get? They show three - two for 50 - 70 MHz, and a third for HF and 6m. G0KSC has some interesting designed - I will be waiting to hear your results with this one. I?ll go through your details here and see what I might come up with. In the mean time I will be interested in the results of your tests tomorrow. Getting info about the TenTec ATU/switch may be difficult, but it wouldn?t surprise me if that is the source. I am sure somewhere in here you will find the problem. I usually take these problem-solving discussion off-line, but let?s leave this one here because of the already wide interest. 73 and have a great evening! Jack, W6FB > On Jun 1, 2020, at 5:47 PM, Peter Dougherty wrote: > > Thanks for the reply, Jack. > > Here's a FULL summary of what is in the line at this moment from the jack on up. > > PL-259 (soldered, Amphenol 83-1SP as all are) to about 2 feet of RG-213 feeding into a Ten-Tec Tuner, which is being used only as an antenna switch and is in bypass. This is needed because the power supply fan noise on the KPA-1500 is just so overwhelming that I can only power it on when needed. I am primarily an HF operator, so ANT-1 is reserved for my HF stack. If I put the 6m antenna on ANT-2, I would need to keep the amp running. So everything goes out on ANT-1, through the TT-238. From there, one feedline goes to the HF stack and the other to the 6m output. It gets SLIGHTLY better if I go directly from the KPA-1500 to the input box, as follows but I still experience faults. > > From there, a PL-259, and 7 or 8 feet of RG-213. Another PL-259, an Amphenol barrel connector in the input box, PL259, then approximately 65 or 70 feet of Commscope-branded LMR-400. PL-259 from that is connected to an Amphenol SO-239 female-to-N-Male, the choke balun, then the driven loop element to the antenna. > > As of Tuesday morning this will change as follows. KPA-1500 ANT-1 out, PL-259 and about 40' of Davis BuryFlex out to the remote antenna switch at the base of the HF stack. From there, about 25 more feet of BuryFlex, a barrel connector then the LMR-400 up to the 6m antenna. This will basically just be an experiment to see if there's any improvement; I'll be bypassing both the old Ten-Tec tuner/switch and the inlet box, and routing via the HF signal path and automatic antenna switch. Adding 65' of BuryFlex to the path strikes me as adding measurable and fairly significant loss to an otherwise really good, quiet antenna system, but if it lets me operate without having to worry about hard faults all the time then I'll take that as a tradeoff. > > - pjd > > -----Original Message----- > From: Jack Brindle > Sent: Monday, June 1, 2020 6:09 PM > To: Peter Dougherty > Cc: Bob McGraw K4TAX ; elecraft at mailman.qth.net > Subject: Re: [Elecraft] NOT the feedline > > Lets take another try at this. There still isn?t enough information in your emails to really determine what might be going on. From the amplifier?s viewpoint, *everything* from the antenna jack on the back of the amplifier is part of the antenna system. So far we know it consists of some section of RG213, another of LM400, a balun of some sort, and an antenna. There are undoubtedly some adapters and couplers in between, and perhaps a few other things. Knowing exactly what these are is critical in making any suggestions. > > Every few months since we released the KPA500 we have seen emails from folks who are certain that the amplifier is causing a problem. We all build our stations for low power, then decide that adding an amplifier is needed, so we buy one. We then are faced with issues driving a lot more power into the antenna system. These are caused by deficiencies in that system, which was sized for much lower power, and almost always will contain at least one component that cannot handle the power. The last part of the KPA500 before power goes out is the directional coupler (note: it is after the low pass filters), the KPA1500 has its ATU after those components. With the KPA1500 ATU in bypass, the directional coupler becomes the last component. This is important because the directional coupler will see any problem in the antenna system, and report it. No amplifier component is in the way to modify things, we get a true picture of what follows the amplifier. So, when something glitches in the antenna system (usually an arc in a coupler, or an overheated toroid in a balun or matching unit), the directional coupler picks it up and moves to protect the amplifier. > > With this in mind, place the KPA1500 ATU into bypass and perform the test. When you see the fault occur, you then need to look at the entire antenna system, starting at the antenna jack on the back of the KPA1500. All of the components are suspect, even a new part (balun, antenna, etc), which may have been affected by high power right after installation. Be sure to looks at the RG213, and at the coupler to the LM400. You have made reference to shack feed-through, what is that, and does it use components that might have issues? > > As in past cases, find the problem in the overall antenna system, and the KPA1500 will be much happier, as will you. > > So, before we can help you, we need to know the details of the system. > > 73! > Jack, W6FB > Elecraft Engineering > > >> On Jun 1, 2020, at 2:25 PM, Peter Dougherty wrote: >> >> Your point is valid, however the underlying fact in my situation is that the new antenna with the new 1:1 current balun (i.e. feedline choke) is presenting **identically** to my old antenna that didn't have a balun. Neither better nor worse. >> >> - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of Bob McGraw K4TAX >> Sent: Monday, June 1, 2020 4:48 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] NOT the feedline >> >> Based on my experience, balun power ratings are for MATCHED conditions. It is rare that hams use a balun in a matched condition. Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the output, while a >> 4:1 balun should see 200 ohms on the output and 50 ohms on the input. In the case of a resonant folded dipole, a 4:1 balun is typically operating in a nearly matched condition. All others combinations are unknown and random. >> >> I run about 500 watts on all bands. My baluns are rated at 5KW! It takes 3 or 4 big hunkin' pieces of ferrite to attain this power level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. No ferrite! >> >> Buy or build a balun of your choice. Using an IR temperature gun, measure the ambient temperature of the core. Run about 1/2 rated power carrier for 30 to 60 seconds. Measure the temperature again. If it is warm to hot, this is RF producing heat. And likely continuing will produce core failure. This is not a good balun for your application. >> >> One of my baluns work between the output of my KAT500 and the balanced feed line connected to the center of a 256 ft wire. That antenna works 160M - 6M with zero issues. Now, I do run a hybrid balun being a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun for common mode rejection. >> >> Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are not at all a proper balun design A Guanella balun will have 2 cores with 2 windings and then another 2 separate cores with another 2 windings. These are then wired to produce a 4:1 balun with good common mode rejection. Most "factory" 4:1 baluns are poorly designed and built junk. >> >> See https://www.dj0ip.de/balun-stuff/ for further references. >> >> 73 >> >> Bob, K4TAX >> >> >> On 6/1/2020 8:45 AM, Alan - G4GNX wrote: >>> I have a similar issue with ferrite 'balun' heating, although mostly >>> tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 >>> balun at the feed point, but also has a sleeve 'balun' consisting of >>> 8 ferrites wrapped in a plastic sleeve, about 3 feet from the feed >>> point. If I run the K3S at 100W, via the KPA500 in standby, then >>> through the KAT500 tuner, I see no problems. >>> >>> On increasing the power to 200W by using the KPA500 in Operate and >>> about 10W drive from the K3S, during a SSB 'over' the temperature of >>> the KPA500 rises and after a few minutes, the SWR readings on the >>> KPA500 and KAT500 start to rise. One of the Elecraft guys actually >>> very kindly went through my fault log and came to the conclusion that >>> the fault is with the antenna/feeder and I agree with him. What is >>> strange is that if I leave a solid carrier running at 200W, I can't >>> easily reproduce the issue and I wonder if its something being >>> affected by peak excursions with SSB? >>> >>> When things do start to go wrong, I can usually perform a manual tune >>> with the KAT500 and the fault will then not (mostly) be apparent. >>> >>> Anyway, I'm in the process of replacing the entire feeder with >>> Westflex 103 and much bigger ferrites. I will also replace the main >>> balun which is a 400W device for a 1KW device, as I think that >>> running the UK max of 400W may be pushing the spec of a 400W balun. >>> Also, the balun itself or connections to it may be faulty. >>> >>> The point now is that I have discovered some damage to the outer >>> covering of the sleeve 'balun' which may be the result of ferrites >>> overheating or may be the cause of movement of the ferrites thus >>> causing instability. Either way, heftier devices seem to be the order >>> of the day. >>> >>> Although the KPA500 temperature rise is somewhat expected, I feel >>> it's a bit higher over a short period than I would like and may be >>> due to reflected power. >>> >>> 73, >>> >>> Alan. G4GNX >>> >>> >>> ------ Original Message ------ >>> From: "David Olean" >>> To: "Peter Dougherty" >>> Cc: elecraft at mailman.qth.net >>> Sent: 01/06/2020 13:25:18 >>> Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on >>> 6m; SWR issues) >>> >>>> Hello Peter >>>> >>>> I suspect RFI as well. I do not have a KPA1500, so my advice is not >>>> worth much, but the fact that the fault only occurs when a signal is >>>> being radiated sends me a red flag. I had a similar problem here >>>> with my SPE amplifier power output. I was measuring it on an LP-100A >>>> wattmeter. It turns out that 1.8 MHz energy from the SPE amp >>>> radiated from my vertical antenna and was getting into a new wire >>>> doublet antenna and coming back down the ladder line into the shack. >>>> The ladder line was about 7 inches from the power coupler for the >>>> LP-100A. RF caused the readings to go wacky and it looked like my >>>> amplifier was going postal! The problem was high rf fields next to >>>> the power meter coupler. >>>> >>>> Ferrite balun heating can be seen with a VSWR meter if you set the >>>> power at some intermediate level, key the amp up with a steady >>>> carrier, and watch for VSWR creeping up. Loose pins in coax can >>>> also be a problem. They can heat up and disconnect or start arcing. >>>> Those problems do not typically show VSWR creep. They happen all at >>>> once usually. >>>> >>>> The KPA1500 works fine into a dummy load. (No RFI) That is a big >>>> clue. Good luck and I hope you find the problem. Maybe an RF >>>> sniffer would detect the ingress point? >>>> >>>> 73 >>>> >>>> Dave K1WHS >>>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email >>> list: http://www.qsl.net/donate.html Message delivered to >>> rmcgraw at blomand.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> lists at w2irt.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> jackbrindle at me.com > > From rwnewbould at comcast.net Mon Jun 1 22:37:34 2020 From: rwnewbould at comcast.net (Rich) Date: Mon, 1 Jun 2020 22:37:34 -0400 Subject: [Elecraft] Spkrs+Ph ?? Message-ID: <91325AC0-A244-4FD1-8A5D-9E53FC69CD0D@comcast.net> Since Elecraft is so backed up. I thought would ask this question here I just received my invoice for repairs to my K3S There was a notation stating: SPKR + PH wrong toogle. Reset to NO I found this unusual as I have it set to YES since my headphones and stereo external speakers both plugged into the rear panel. Any idea why setting it to YES is considered wrong? I am a bit baffled?? Rich K3RWN Typos sent by my iphone From jim at audiosystemsgroup.com Mon Jun 1 22:41:48 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 1 Jun 2020 19:41:48 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: <5379e93e-ce34-b2ae-78c1-a1991c16a699@audiosystemsgroup.com> On 6/1/2020 6:45 AM, Alan - G4GNX wrote: > I have a similar issue with ferrite 'balun' heating, although mostly > tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 > balun at the feed point, but also has a sleeve 'balun' consisting of 8 > ferrites wrapped in a plastic sleeve, about 3 feet from the feed point. > If I run the K3S at 100W, via the KPA500 in standby, then through the > KAT500 tuner, I see no problems. > > On increasing the power to 200W by using the KPA500 in Operate and about > 10W drive from the K3S, during a SSB 'over' the temperature of the > KPA500 rises and after a few minutes, the SWR readings on the KPA500 and > KAT500 start to rise. Alan, What you describe basically a lousy common mode choke, applied to an antenna that, because it is so badly unbalanced, has a LOT common mode current. The primary function of such a choke is to prevent common mode noise picked up on that feedline from coupling to the antenna, and from there to the receiver. I don't know of a way to EFFECTIVELY choke such an antenna. The application of ANY choke to such an antenna is an unnatural act -- it does nothing useful. I strongly suggest that you study the material on my website about how common mode chokes work. These concepts have been part of the ARRL Handbook and/or Antenna Book for nearly 10 years. k9yc.com/publish.htm The word "balun" is used to describe nearly a dozen very different things. What COULD work is a two winding transformer wound on a low loss ferrite toroid, like Fair-Rite #61 or #67 material. #61 will likely handle 100W from 160M to 10M without overheating. #67, which has much lower loss above about 17M, may be required at the 400W level, and would certainly be used at 1 kW and above. Making the windings bifilar provides a capacitive path for common mode current, degrading its effectiveness. This is minimized by placing the windings on opposite sides of the toroidal core. 73, Jim K9YC From lists at w2irt.net Mon Jun 1 22:46:46 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 1 Jun 2020 22:46:46 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: <074201d63888$0ec81670$2c584350$@w2irt.net> It's the 6 element LFA on a 6.8 meter boom. The balun is their 50 MHz ferrite core balun. I want to get the Ten-Tec tuner out of the equation forthwith but unless I can solve the fan noise problems it's a non-starter. My XYL is working from home in the same home-office that my shack is located in, about 6 feet away from my operating desk. The fan noise drives *me* crazy but she won't tolerate it being on all day when I'm just monitoring six. I work enough stuff on CW on HF for it to remain the primary concern, so I can't really put that on ANT-2, which I did try. Hopefully going through the main antenna switch will help--I'll find out tomorrow. - pjd -----Original Message----- From: Jack Brindle Sent: Monday, June 1, 2020 9:29 PM To: Peter Dougherty Cc: Elecraft Mailer Subject: Re: [Elecraft] NOT the feedline Is it the 3 element 6m LFA? That is an interesting antenna. Which of the baluns did you get? They show three - two for 50 - 70 MHz, and a third for HF and 6m. G0KSC has some interesting designed - I will be waiting to hear your results with this one. I?ll go through your details here and see what I might come up with. In the mean time I will be interested in the results of your tests tomorrow. Getting info about the TenTec ATU/switch may be difficult, but it wouldn?t surprise me if that is the source. I am sure somewhere in here you will find the problem. I usually take these problem-solving discussion off-line, but let?s leave this one here because of the already wide interest. 73 and have a great evening! Jack, W6FB > On Jun 1, 2020, at 5:47 PM, Peter Dougherty wrote: > > Thanks for the reply, Jack. > > Here's a FULL summary of what is in the line at this moment from the jack on up. > > PL-259 (soldered, Amphenol 83-1SP as all are) to about 2 feet of RG-213 feeding into a Ten-Tec Tuner, which is being used only as an antenna switch and is in bypass. This is needed because the power supply fan noise on the KPA-1500 is just so overwhelming that I can only power it on when needed. I am primarily an HF operator, so ANT-1 is reserved for my HF stack. If I put the 6m antenna on ANT-2, I would need to keep the amp running. So everything goes out on ANT-1, through the TT-238. >From there, one feedline goes to the HF stack and the other to the 6m output. It gets SLIGHTLY better if I go directly from the KPA-1500 to the input box, as follows but I still experience faults. > > From there, a PL-259, and 7 or 8 feet of RG-213. Another PL-259, an Amphenol barrel connector in the input box, PL259, then approximately 65 or 70 feet of Commscope-branded LMR-400. PL-259 from that is connected to an Amphenol SO-239 female-to-N-Male, the choke balun, then the driven loop element to the antenna. > > As of Tuesday morning this will change as follows. KPA-1500 ANT-1 out, PL-259 and about 40' of Davis BuryFlex out to the remote antenna switch at the base of the HF stack. From there, about 25 more feet of BuryFlex, a barrel connector then the LMR-400 up to the 6m antenna. This will basically just be an experiment to see if there's any improvement; I'll be bypassing both the old Ten-Tec tuner/switch and the inlet box, and routing via the HF signal path and automatic antenna switch. Adding 65' of BuryFlex to the path strikes me as adding measurable and fairly significant loss to an otherwise really good, quiet antenna system, but if it lets me operate without having to worry about hard faults all the time then I'll take that as a tradeoff. > > - pjd > > -----Original Message----- > From: Jack Brindle > Sent: Monday, June 1, 2020 6:09 PM > To: Peter Dougherty > Cc: Bob McGraw K4TAX ; elecraft at mailman.qth.net > Subject: Re: [Elecraft] NOT the feedline > > Lets take another try at this. There still isn?t enough information in your emails to really determine what might be going on. >From the amplifier?s viewpoint, *everything* from the antenna jack on the back of the amplifier is part of the antenna system. So far we know it consists of some section of RG213, another of LM400, a balun of some sort, and an antenna. There are undoubtedly some adapters and couplers in between, and perhaps a few other things. Knowing exactly what these are is critical in making any suggestions. > > Every few months since we released the KPA500 we have seen emails from folks who are certain that the amplifier is causing a problem. We all build our stations for low power, then decide that adding an amplifier is needed, so we buy one. We then are faced with issues driving a lot more power into the antenna system. These are caused by deficiencies in that system, which was sized for much lower power, and almost always will contain at least one component that cannot handle the power. The last part of the KPA500 before power goes out is the directional coupler (note: it is after the low pass filters), the KPA1500 has its ATU after those components. With the KPA1500 ATU in bypass, the directional coupler becomes the last component. This is important because the directional coupler will see any problem in the antenna system, and report it. No amplifier component is in the way to modify things, we get a true picture of what follows the amplifier. So, when something glitches in the antenna system (usually an arc in a coupler, or an overheated toroid in a balun or matching unit), the directional coupler picks it up and moves to protect the amplifier. > > With this in mind, place the KPA1500 ATU into bypass and perform the test. When you see the fault occur, you then need to look at the entire antenna system, starting at the antenna jack on the back of the KPA1500. All of the components are suspect, even a new part (balun, antenna, etc), which may have been affected by high power right after installation. Be sure to looks at the RG213, and at the coupler to the LM400. You have made reference to shack feed-through, what is that, and does it use components that might have issues? > > As in past cases, find the problem in the overall antenna system, and the KPA1500 will be much happier, as will you. > > So, before we can help you, we need to know the details of the system. > > 73! > Jack, W6FB > Elecraft Engineering > > >> On Jun 1, 2020, at 2:25 PM, Peter Dougherty wrote: >> >> Your point is valid, however the underlying fact in my situation is that the new antenna with the new 1:1 current balun (i.e. feedline choke) is presenting **identically** to my old antenna that didn't have a balun. Neither better nor worse. >> >> - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of Bob McGraw K4TAX >> Sent: Monday, June 1, 2020 4:48 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] NOT the feedline >> >> Based on my experience, balun power ratings are for MATCHED conditions. It is rare that hams use a balun in a matched condition. Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the output, while a >> 4:1 balun should see 200 ohms on the output and 50 ohms on the input. In the case of a resonant folded dipole, a 4:1 balun is typically operating in a nearly matched condition. All others combinations are unknown and random. >> >> I run about 500 watts on all bands. My baluns are rated at 5KW! It takes 3 or 4 big hunkin' pieces of ferrite to attain this power level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. No ferrite! >> >> Buy or build a balun of your choice. Using an IR temperature gun, measure the ambient temperature of the core. Run about 1/2 rated power carrier for 30 to 60 seconds. Measure the temperature again. If it is warm to hot, this is RF producing heat. And likely continuing will produce core failure. This is not a good balun for your application. >> >> One of my baluns work between the output of my KAT500 and the balanced feed line connected to the center of a 256 ft wire. That antenna works 160M - 6M with zero issues. Now, I do run a hybrid balun being a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun for common mode rejection. >> >> Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are not at all a proper balun design A Guanella balun will have 2 cores with 2 windings and then another 2 separate cores with another 2 windings. These are then wired to produce a 4:1 balun with good common mode rejection. Most "factory" 4:1 baluns are poorly designed and built junk. >> >> See https://www.dj0ip.de/balun-stuff/ for further references. >> >> 73 >> >> Bob, K4TAX >> >> >> On 6/1/2020 8:45 AM, Alan - G4GNX wrote: >>> I have a similar issue with ferrite 'balun' heating, although mostly >>> tested on 40 metres. I'm using an OSCFD (Windom) which has a main >>> 4:1 balun at the feed point, but also has a sleeve 'balun' >>> consisting of >>> 8 ferrites wrapped in a plastic sleeve, about 3 feet from the feed >>> point. If I run the K3S at 100W, via the KPA500 in standby, then >>> through the KAT500 tuner, I see no problems. >>> >>> On increasing the power to 200W by using the KPA500 in Operate and >>> about 10W drive from the K3S, during a SSB 'over' the temperature of >>> the KPA500 rises and after a few minutes, the SWR readings on the >>> KPA500 and KAT500 start to rise. One of the Elecraft guys actually >>> very kindly went through my fault log and came to the conclusion >>> that the fault is with the antenna/feeder and I agree with him. What >>> is strange is that if I leave a solid carrier running at 200W, I >>> can't easily reproduce the issue and I wonder if its something being >>> affected by peak excursions with SSB? >>> >>> When things do start to go wrong, I can usually perform a manual >>> tune with the KAT500 and the fault will then not (mostly) be apparent. >>> >>> Anyway, I'm in the process of replacing the entire feeder with >>> Westflex 103 and much bigger ferrites. I will also replace the main >>> balun which is a 400W device for a 1KW device, as I think that >>> running the UK max of 400W may be pushing the spec of a 400W balun. >>> Also, the balun itself or connections to it may be faulty. >>> >>> The point now is that I have discovered some damage to the outer >>> covering of the sleeve 'balun' which may be the result of ferrites >>> overheating or may be the cause of movement of the ferrites thus >>> causing instability. Either way, heftier devices seem to be the >>> order of the day. >>> >>> Although the KPA500 temperature rise is somewhat expected, I feel >>> it's a bit higher over a short period than I would like and may be >>> due to reflected power. >>> >>> 73, >>> >>> Alan. G4GNX >>> >>> >>> ------ Original Message ------ >>> From: "David Olean" >>> To: "Peter Dougherty" >>> Cc: elecraft at mailman.qth.net >>> Sent: 01/06/2020 13:25:18 >>> Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on >>> 6m; SWR issues) >>> >>>> Hello Peter >>>> >>>> I suspect RFI as well. I do not have a KPA1500, so my advice is not >>>> worth much, but the fact that the fault only occurs when a signal >>>> is being radiated sends me a red flag. I had a similar problem >>>> here with my SPE amplifier power output. I was measuring it on an >>>> LP-100A wattmeter. It turns out that 1.8 MHz energy from the SPE >>>> amp radiated from my vertical antenna and was getting into a new >>>> wire doublet antenna and coming back down the ladder line into the shack. >>>> The ladder line was about 7 inches from the power coupler for the >>>> LP-100A. RF caused the readings to go wacky and it looked like my >>>> amplifier was going postal! The problem was high rf fields next to >>>> the power meter coupler. >>>> >>>> Ferrite balun heating can be seen with a VSWR meter if you set the >>>> power at some intermediate level, key the amp up with a steady >>>> carrier, and watch for VSWR creeping up. Loose pins in coax can >>>> also be a problem. They can heat up and disconnect or start arcing. >>>> Those problems do not typically show VSWR creep. They happen all at >>>> once usually. >>>> >>>> The KPA1500 works fine into a dummy load. (No RFI) That is a big >>>> clue. Good luck and I hope you find the problem. Maybe an RF >>>> sniffer would detect the ingress point? >>>> >>>> 73 >>>> >>>> Dave K1WHS >>>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email >>> list: http://www.qsl.net/donate.html Message delivered to >>> rmcgraw at blomand.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email >> list: http://www.qsl.net/donate.html Message delivered to >> lists at w2irt.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email >> list: http://www.qsl.net/donate.html Message delivered to >> jackbrindle at me.com > > From jim at audiosystemsgroup.com Mon Jun 1 22:51:14 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 1 Jun 2020 19:51:14 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> Message-ID: <038bbac3-ce06-1d40-71c9-956c0e3c7b64@audiosystemsgroup.com> On 6/1/2020 7:13 AM, Adrian wrote: > If you use a decent combination balun such as ; > https://www.balundesigns.com/model-4116-4-1-hybrid-balun-1-5-54mhz-3kw/ > if you have any metal structure in range of the field, or These are probably effective as impedance matching devices, but everything I've seen from this company indicates they don't have a clue about how common mode chokes work. Several years ago, a member of our contest club building a big contest station in the Caribbean gave me one of their common mode choke "baluns" to measure. It looked NOTHING like the the curves published on their website, and was a LOUSY choke. It probably would not have blown up with power, but it certainly wouldn't have done much to kill common mode noise over the frequency range advertised. > The true windom uses the vertical section of its feedline as part of > the antenna, such that any ocf dipole with a feedpoint common mode > choke cannot be referred to as a 'windom' Whatever it's called, while it was probably a very good idea many years ago when it was conceived, it's a LOUSY idea today because the design is a sitting duck for the increasingly massive levels of RF noise in our homes and the homes of our neighbors. As old-timers learned many years ago, "if you can't hear 'em, you can't work 'em." 73, Jim K9YC From jim at audiosystemsgroup.com Mon Jun 1 22:59:17 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 1 Jun 2020 19:59:17 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: <58A226A9-B090-441C-A0CD-D5EF0D699683@wunderwood.org> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> <1aef9a86-834c-01eb-81b0-d9b851dff69b@ilstu.edu> <58A226A9-B090-441C-A0CD-D5EF0D699683@wunderwood.org> Message-ID: <44960a5d-01fd-2dad-ec74-bbd623bb7ead@audiosystemsgroup.com> On 6/1/2020 3:31 PM, Walter Underwood wrote: > Even with a 1:1 SWR, 1000 W is pretty close to the 500 V peak rating for a UHF connector. The vast majority of HF stations with big power amps use UHF connectors throughout, and are without such problems as long as quality connectors are properly installed. The only problems I've ever had with connectors were the result the connectors being junk quality, and it hasn't been voltage breakdown. Rather I've had them fall apart, and I've had the center conductor melt. 73, Jim K9YC From rmcgraw at blomand.net Mon Jun 1 23:01:31 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 1 Jun 2020 22:01:31 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: <5379e93e-ce34-b2ae-78c1-a1991c16a699@audiosystemsgroup.com> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <5379e93e-ce34-b2ae-78c1-a1991c16a699@audiosystemsgroup.com> Message-ID: <245bae4e-5b2a-ffc0-2083-64dfe7e34826@blomand.net> I agree with Jim, K9YC? on these points. ** OCFD antennas are noted to have lots of common mode current issues.?? These are a chore to tame. ** Most commercial baluns or common mode chokes are poor designs, of inadequate material, designs copied from other poor designs but packed in a pretty box of different color, size, and shape with a high price. One of the best applications for a 4:1 balun is with a single band folded dipole made of equal wire diameter or size. Depending on height above ground the feed point Z is between 200 and 300 ohms.? The use of a 4:1 give an impedance of 50 to 75 ohms. ?? Any other usage of a 4:1 balun is more of a compromise to a disaster. 73 Bob, K4TAX On 6/1/2020 9:41 PM, Jim Brown wrote: > On 6/1/2020 6:45 AM, Alan - G4GNX wrote: >> I have a similar issue with ferrite 'balun' heating, although mostly >> tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 >> balun at the feed point, but also has a sleeve 'balun' consisting of >> 8 ferrites wrapped in a plastic sleeve, about 3 feet from the feed >> point. If I run the K3S at 100W, via the KPA500 in standby, then >> through the KAT500 tuner, I see no problems. >> >> On increasing the power to 200W by using the KPA500 in Operate and >> about 10W drive from the K3S, during a SSB 'over' the temperature of >> the KPA500 rises and after a few minutes, the SWR readings on the >> KPA500 and KAT500 start to rise. > > Alan, > > What you describe basically a lousy common mode choke, applied to an > antenna that, because it is so badly unbalanced, has a LOT common mode > current. The primary function of such a choke is to prevent common > mode noise picked up on that feedline from coupling to the antenna, > and from there to the receiver. I don't know of a way to EFFECTIVELY > choke such an antenna. The application of ANY choke to such an antenna > is an unnatural act -- it does nothing useful. > > I strongly suggest that you study the material on my website about how > common mode chokes work. These concepts have been part of the ARRL > Handbook and/or Antenna Book for nearly 10 years. > > k9yc.com/publish.htm > > The word "balun" is used to describe nearly a dozen very different > things. What COULD work is a two winding transformer wound on a low > loss ferrite toroid, like Fair-Rite #61 or #67 material. #61 will > likely handle 100W from 160M to 10M without overheating. #67, which > has much lower loss above about 17M, may be required at the 400W > level, and would certainly be used at 1 kW and above. > > Making the windings bifilar provides a capacitive path for common mode > current, degrading its effectiveness. This is minimized by placing the > windings on opposite sides of the toroidal core. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From jim at audiosystemsgroup.com Mon Jun 1 23:08:22 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 1 Jun 2020 20:08:22 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: <073001d63877$63b1f900$2b15eb00$@w2irt.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: On 6/1/2020 5:47 PM, Peter Dougherty wrote: > Ten-Tec Tuner, This might be it, Peter. ! I've used (and loved) the Ten Tec 229 and 238 tuners, but some of their fixed capacitors are under-rated for power. This is fairly well known among Ten Tec users, so I read about it somewhere and replaced those in my tuners with caps having higher power ratings. There's another design flaw -- their antenna selection switch fails to to provide a return for RF current, using the chassis instead. This adds inductance in series with the signal path, which increasingly degrades SWR and crosstalk with increasing frequency. Palstar makes the same mistake in tuners I saw at Dayton 8-10 years ago. When I pointed it out to a guy in their booth who claimed to be its designer, he told me I was crazy! 73, Jim K9YC From vk4tux at gmail.com Mon Jun 1 23:22:31 2020 From: vk4tux at gmail.com (Adrian) Date: Tue, 2 Jun 2020 13:22:31 +1000 Subject: [Elecraft] NOT the feedline In-Reply-To: <245bae4e-5b2a-ffc0-2083-64dfe7e34826@blomand.net> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <5379e93e-ce34-b2ae-78c1-a1991c16a699@audiosystemsgroup.com> <245bae4e-5b2a-ffc0-2083-64dfe7e34826@blomand.net> Message-ID: <8d50ebd4-10cf-eaeb-a2e0-4a0679cef59a@gmail.com> My experience is that the Balun-Designs 4:1 current balun works brilliantly on a well designed ocf antenna with decent height and proportions to provide good band sync at the same impedance point, where the different band sine waves intersect, at the approx 1/3 total length feedpoint. shown in below from ; https://archive.org/details/UnderstandingAndBuildingTheOCFDipole ?However these days I use delta loops, beams and verticals. Adrian Fewster On 2/6/20 1:01 pm, Bob McGraw K4TAX wrote: > I agree with Jim, K9YC? on these points. > > ** OCFD antennas are noted to have lots of common mode current > issues.?? These are a chore to tame. > > ** Most commercial baluns or common mode chokes are poor designs, of > inadequate material, designs copied from other poor designs but packed > in a pretty box of different color, size, and shape with a high price. > > One of the best applications for a 4:1 balun is with a single band > folded dipole made of equal wire diameter or size. Depending on height > above ground the feed point Z is between 200 and 300 ohms. The use of > a 4:1 give an impedance of 50 to 75 ohms. ?? Any other usage of a 4:1 > balun is more of a compromise to a disaster. > > 73 > > Bob, K4TAX > > > On 6/1/2020 9:41 PM, Jim Brown wrote: >> On 6/1/2020 6:45 AM, Alan - G4GNX wrote: >>> I have a similar issue with ferrite 'balun' heating, although mostly >>> tested on 40 metres. I'm using an OSCFD (Windom) which has a main >>> 4:1 balun at the feed point, but also has a sleeve 'balun' >>> consisting of 8 ferrites wrapped in a plastic sleeve, about 3 feet >>> from the feed point. If I run the K3S at 100W, via the KPA500 in >>> standby, then through the KAT500 tuner, I see no problems. >>> >>> On increasing the power to 200W by using the KPA500 in Operate and >>> about 10W drive from the K3S, during a SSB 'over' the temperature of >>> the KPA500 rises and after a few minutes, the SWR readings on the >>> KPA500 and KAT500 start to rise. >> >> Alan, >> >> What you describe basically a lousy common mode choke, applied to an >> antenna that, because it is so badly unbalanced, has a LOT common >> mode current. The primary function of such a choke is to prevent >> common mode noise picked up on that feedline from coupling to the >> antenna, and from there to the receiver. I don't know of a way to >> EFFECTIVELY choke such an antenna. The application of ANY choke to >> such an antenna is an unnatural act -- it does nothing useful. >> >> I strongly suggest that you study the material on my website about >> how common mode chokes work. These concepts have been part of the >> ARRL Handbook and/or Antenna Book for nearly 10 years. >> >> k9yc.com/publish.htm >> >> The word "balun" is used to describe nearly a dozen very different >> things. What COULD work is a two winding transformer wound on a low >> loss ferrite toroid, like Fair-Rite #61 or #67 material. #61 will >> likely handle 100W from 160M to 10M without overheating. #67, which >> has much lower loss above about 17M, may be required at the 400W >> level, and would certainly be used at 1 kW and above. >> >> Making the windings bifilar provides a capacitive path for common >> mode current, degrading its effectiveness. This is minimized by >> placing the windings on opposite sides of the toroidal core. >> >> 73, Jim K9YC >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to vk4tux at gmail.com From vk4tux at gmail.com Mon Jun 1 23:31:41 2020 From: vk4tux at gmail.com (Adrian) Date: Tue, 2 Jun 2020 13:31:41 +1000 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: My recent experience with Palstar has not been good. An expensive DL1500 dummy load in which the SO239 had not been mounted correct bwith the locknut still ten turns loose, requiring dismantle and repair new out of the box by myself. Also a new expensive AT2K tuner in which the roller inductor shaft had not been graphite greased nor tensioned. My SPE amp @ 400w went out on alarm quickly until I disassembled and repaired myself. I found Palstar support rude and in self denial of the issues I raised. In hindsight I should have saved a heap of money and gone with MFJ. On 2/6/20 1:08 pm, Jim Brown wrote: > On 6/1/2020 5:47 PM, Peter Dougherty wrote: >> ? Ten-Tec Tuner, > > This might be it, Peter. ! I've used (and loved) the Ten Tec 229 and > 238 tuners, but some of their fixed capacitors are under-rated for > power. This is fairly well known among Ten Tec users, so I read about > it somewhere and replaced those in my tuners with caps having higher > power ratings. > > There's another design flaw -- their antenna selection switch fails to > to provide a return for RF current, using the chassis instead. This > adds inductance in series with the signal path, which increasingly > degrades SWR and crosstalk with increasing frequency. Palstar makes > the same mistake in tuners I saw at Dayton 8-10 years ago. When I > pointed it out to a guy in their booth who claimed to be its designer, > he told me I was crazy! > > 73, Jim K9YC > From teotwaki at yahoo.com Mon Jun 1 23:35:40 2020 From: teotwaki at yahoo.com (Jim) Date: Tue, 2 Jun 2020 03:35:40 +0000 (UTC) Subject: [Elecraft] External battery for KX2, field day and SOTA (Eric Norris) In-Reply-To: References: Message-ID: <1686790629.866001.1591068940623@mail.yahoo.com> I have two of the original A123 SLA style 7AH sized batteries, model ALM-12V7 and use them with my KX3. They have eight ANR26650 cells arranged in a 4S2P config. The ALM-12V7s can be arranged in series or parallel systems the same as ordinary SLAs. Internal to the battery package are the following circuit functions - Overcharge protection and pre-charge circuits- 30 A plastic blade fuse (replaceable)- Charger detection and voltage regulation- Micro controller and cell balancing- Over discharge protection Any discharge due to the internal circuits is so small that they recommend charging every three years if they are kept in storage. An ordinary lead acid charger can be used or a fixed 14.4V 10A power supply. There was no specialized A123 charger made for these batteries. Which model of A123 battery did you have? I think some company used to sell home made packs based on individual A123 sells and that company hawked their own charger for their packs. Jim On Monday, June 1, 2020, 6:06:09 PM PDT, elecraft-request at mailman.qth.net wrote: ---------------------------------------------------------------------- Message: 1 Date: Mon, 1 Jun 2020 07:42:45 -0700 From: Eric Norris Subject: Re: [Elecraft] External battery for KX2, field day and SOTA --------------The original A123 batteries use a balancing system built into their specialized chargers, and they hold their charge much longer.? ------------------------ 73 Eric WD6DBM From rmcgraw at blomand.net Tue Jun 2 00:01:06 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 1 Jun 2020 23:01:06 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: Plus there is L1 which is 0.3uH in the circuit and C7 and C8 in the circuit when in the bypass position.? This does not allow the tuner, even in bypass mode, to work well as an antenna switch on 6M. ?The capacitors in question are not rated for the RF current experienced under certain load Z conditions.? They heat, change value, and the SWR creeps up.? Allow them to cool and the SWR is back to the starting point.??? I usually tweaked mine such that the SWR started off a bit high, came down as I transmitted and if transmitting a bit longer the SWR increased.?? Later I got tired of this and changed the group of disk ceramic caps to 470 pf Russian doorknob caps.? Problem solved. 73 Bob, K4TAX On 6/1/2020 10:08 PM, Jim Brown wrote: > his might be it, Peter. ! I've used (and loved) the Ten Tec 229 and > 238 tuners, but some of their fixed capacitors are under-rated for > power. This is fairly well known among Ten Tec users, so I read about > it somewhere and replaced those in my tuners with caps having higher > power ratings. From norrislawfirm2 at gmail.com Tue Jun 2 00:17:04 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Mon, 1 Jun 2020 21:17:04 -0700 Subject: [Elecraft] External battery for KX2, field day and SOTA In-Reply-To: <1686790629.866001.1591068940623@mail.yahoo.com> References: <1686790629.866001.1591068940623@mail.yahoo.com> Message-ID: Jim, These were LiFePO4 (Lithium Iron Nanophosphate) A123 packs, sold then in 4S1P, 4S2P, and 4S4P configuration. Totally different animal from what you are talking about, and as I said, no internal balancing. They had balancing harnesses for hooking up to Cellpro 4S and 10S chargers. The individual cells were much larger than 26650 cells. 73 Eric WD6DBM On Mon, Jun 1, 2020, 8:35 PM Jim wrote: > I have two of the original A123 SLA style 7AH sized batteries, model > ALM-12V7 and use them with my KX3. They have eight ANR26650 cells arranged > in a 4S2P config. The ALM-12V7s can be arranged in series or parallel > systems the same as ordinary SLAs. > > Internal to the battery package are the following circuit functions > > - Overcharge protection and pre-charge circuits > - 30 A plastic blade fuse (replaceable) > - Charger detection and voltage regulation > - Micro controller and cell balancing > - Over discharge protection > > Any discharge due to the internal circuits is so small that they recommend > charging every three years if they are kept in storage. > > An ordinary lead acid charger can be used or a fixed 14.4V 10A power > supply. There was no specialized A123 charger made for these batteries. > > Which model of A123 battery did you have? I think some company used to > sell home made packs based on individual A123 sells and that company hawked > their own charger for their packs. > > Jim > > > > > > > > On Monday, June 1, 2020, 6:06:09 PM PDT, elecraft-request at mailman.qth.net > wrote: > > ---------------------------------------------------------------------- > > Message: 1 > Date: Mon, 1 Jun 2020 07:42:45 -0700 > From: Eric Norris > Subject: Re: [Elecraft] External battery for KX2, field day and SOTA > > --------------The original A123 batteries use a balancing system built > into their specialized chargers, and they hold their > charge much longer. ------------------------ > > 73 Eric WD6DBM > > > From nr4c at widomaker.com Tue Jun 2 00:22:24 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 2 Jun 2020 00:22:24 -0400 Subject: [Elecraft] Spkrs+Ph ?? In-Reply-To: <91325AC0-A244-4FD1-8A5D-9E53FC69CD0D@comcast.net> References: <91325AC0-A244-4FD1-8A5D-9E53FC69CD0D@comcast.net> Message-ID: Just a question. Why do you use speakers AND phones at same time? Maybe so that you can hear radio better but still provide speaker so that you can irritate your wife and kids in the other room? Sent from my iPhone ...nr4c. bill > On Jun 1, 2020, at 10:39 PM, Rich wrote: > > ?Since Elecraft is so backed up. I thought would ask this question here > > I just received my invoice for repairs to my K3S > > There was a notation stating: > SPKR + PH wrong toogle. Reset to NO > > I found this unusual as I have it set to YES since my headphones and stereo external speakers both plugged into the rear panel. > > Any idea why setting it to YES is considered wrong? > > I am a bit baffled?? > > Rich > K3RWN > > Typos sent by my iphone > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From teotwaki at yahoo.com Tue Jun 2 00:25:42 2020 From: teotwaki at yahoo.com (Jim) Date: Tue, 2 Jun 2020 04:25:42 +0000 (UTC) Subject: [Elecraft] External battery for KX2, field day and SOTA In-Reply-To: References: <1686790629.866001.1591068940623@mail.yahoo.com> Message-ID: <1828138255.871932.1591071942543@mail.yahoo.com> Mine are also LiFePO4 and extremely trouble free Jim On Monday, June 1, 2020, 9:17:16 PM PDT, Eric Norris wrote: Jim, These were LiFePO4 (Lithium Iron Nanophosphate) A123 packs, sold then in 4S1P, 4S2P, and 4S4P configuration.? Totally different animal from what you are?talking about, and as I said, no internal balancing.? They had balancing harnesses for hooking up to Cellpro 4S and 10S chargers.? The individual cells were much larger than 26650 cells.?? 73 Eric WD6DBM From k2vco.vic at gmail.com Tue Jun 2 01:00:36 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Tue, 2 Jun 2020 08:00:36 +0300 Subject: [Elecraft] NOT the feedline In-Reply-To: <073001d63877$63b1f900$2b15eb00$@w2irt.net> References: <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: Pardon me if this has already been covered, but do you have the same problem if you connect the antenna to ANT-2 on the KPA? I know you don?t want to do this permanently, but just as a test. Victor 4X6GP > On 2 Jun 2020, at 3:47, Peter Dougherty wrote: > > ?Thanks for the reply, Jack. > > Here's a FULL summary of what is in the line at this moment from the jack on up. > > PL-259 (soldered, Amphenol 83-1SP as all are) to about 2 feet of RG-213 feeding into a Ten-Tec Tuner, which is being used only as an antenna switch and is in bypass. This is needed because the power supply fan noise on the KPA-1500 is just so overwhelming that I can only power it on when needed. I am primarily an HF operator, so ANT-1 is reserved for my HF stack. If I put the 6m antenna on ANT-2, I would need to keep the amp running. So everything goes out on ANT-1, through the TT-238. From there, one feedline goes to the HF stack and the other to the 6m output. It gets SLIGHTLY better if I go directly from the KPA-1500 to the input box, as follows but I still experience faults. > > From there, a PL-259, and 7 or 8 feet of RG-213. Another PL-259, an Amphenol barrel connector in the input box, PL259, then approximately 65 or 70 feet of Commscope-branded LMR-400. PL-259 from that is connected to an Amphenol SO-239 female-to-N-Male, the choke balun, then the driven loop element to the antenna. > > As of Tuesday morning this will change as follows. KPA-1500 ANT-1 out, PL-259 and about 40' of Davis BuryFlex out to the remote antenna switch at the base of the HF stack. From there, about 25 more feet of BuryFlex, a barrel connector then the LMR-400 up to the 6m antenna. This will basically just be an experiment to see if there's any improvement; I'll be bypassing both the old Ten-Tec tuner/switch and the inlet box, and routing via the HF signal path and automatic antenna switch. Adding 65' of BuryFlex to the path strikes me as adding measurable and fairly significant loss to an otherwise really good, quiet antenna system, but if it lets me operate without having to worry about hard faults all the time then I'll take that as a tradeoff. > > - pjd > > -----Original Message----- > From: Jack Brindle > Sent: Monday, June 1, 2020 6:09 PM > To: Peter Dougherty > Cc: Bob McGraw K4TAX ; elecraft at mailman.qth.net > Subject: Re: [Elecraft] NOT the feedline > > Lets take another try at this. There still isn?t enough information in your emails to really determine what might be going on. From the amplifier?s viewpoint, *everything* from the antenna jack on the back of the amplifier is part of the antenna system. So far we know it consists of some section of RG213, another of LM400, a balun of some sort, and an antenna. There are undoubtedly some adapters and couplers in between, and perhaps a few other things. Knowing exactly what these are is critical in making any suggestions. > > Every few months since we released the KPA500 we have seen emails from folks who are certain that the amplifier is causing a problem. We all build our stations for low power, then decide that adding an amplifier is needed, so we buy one. We then are faced with issues driving a lot more power into the antenna system. These are caused by deficiencies in that system, which was sized for much lower power, and almost always will contain at least one component that cannot handle the power. The last part of the KPA500 before power goes out is the directional coupler (note: it is after the low pass filters), the KPA1500 has its ATU after those components. With the KPA1500 ATU in bypass, the directional coupler becomes the last component. This is important because the directional coupler will see any problem in the antenna system, and report it. No amplifier component is in the way to modify things, we get a true picture of what follows the amplifier. So, when something glitches in the antenna system (usually an arc in a coupler, or an overheated toroid in a balun or matching unit), the directional coupler picks it up and moves to protect the amplifier. > > With this in mind, place the KPA1500 ATU into bypass and perform the test. When you see the fault occur, you then need to look at the entire antenna system, starting at the antenna jack on the back of the KPA1500. All of the components are suspect, even a new part (balun, antenna, etc), which may have been affected by high power right after installation. Be sure to looks at the RG213, and at the coupler to the LM400. You have made reference to shack feed-through, what is that, and does it use components that might have issues? > > As in past cases, find the problem in the overall antenna system, and the KPA1500 will be much happier, as will you. > > So, before we can help you, we need to know the details of the system. > > 73! > Jack, W6FB > Elecraft Engineering > > >> On Jun 1, 2020, at 2:25 PM, Peter Dougherty wrote: >> >> Your point is valid, however the underlying fact in my situation is that the new antenna with the new 1:1 current balun (i.e. feedline choke) is presenting **identically** to my old antenna that didn't have a balun. Neither better nor worse. >> >> - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of Bob McGraw K4TAX >> Sent: Monday, June 1, 2020 4:48 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] NOT the feedline >> >> Based on my experience, balun power ratings are for MATCHED conditions. It is rare that hams use a balun in a matched condition. Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the output, while a >> 4:1 balun should see 200 ohms on the output and 50 ohms on the input. In the case of a resonant folded dipole, a 4:1 balun is typically operating in a nearly matched condition. All others combinations are unknown and random. >> >> I run about 500 watts on all bands. My baluns are rated at 5KW! It takes 3 or 4 big hunkin' pieces of ferrite to attain this power level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. No ferrite! >> >> Buy or build a balun of your choice. Using an IR temperature gun, measure the ambient temperature of the core. Run about 1/2 rated power carrier for 30 to 60 seconds. Measure the temperature again. If it is warm to hot, this is RF producing heat. And likely continuing will produce core failure. This is not a good balun for your application. >> >> One of my baluns work between the output of my KAT500 and the balanced feed line connected to the center of a 256 ft wire. That antenna works 160M - 6M with zero issues. Now, I do run a hybrid balun being a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun for common mode rejection. >> >> Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are not at all a proper balun design A Guanella balun will have 2 cores with 2 windings and then another 2 separate cores with another 2 windings. These are then wired to produce a 4:1 balun with good common mode rejection. Most "factory" 4:1 baluns are poorly designed and built junk. >> >> See https://www.dj0ip.de/balun-stuff/ for further references. >> >> 73 >> >> Bob, K4TAX >> >> >>> On 6/1/2020 8:45 AM, Alan - G4GNX wrote: >>> I have a similar issue with ferrite 'balun' heating, although mostly >>> tested on 40 metres. I'm using an OSCFD (Windom) which has a main 4:1 >>> balun at the feed point, but also has a sleeve 'balun' consisting of >>> 8 ferrites wrapped in a plastic sleeve, about 3 feet from the feed >>> point. If I run the K3S at 100W, via the KPA500 in standby, then >>> through the KAT500 tuner, I see no problems. >>> >>> On increasing the power to 200W by using the KPA500 in Operate and >>> about 10W drive from the K3S, during a SSB 'over' the temperature of >>> the KPA500 rises and after a few minutes, the SWR readings on the >>> KPA500 and KAT500 start to rise. One of the Elecraft guys actually >>> very kindly went through my fault log and came to the conclusion that >>> the fault is with the antenna/feeder and I agree with him. What is >>> strange is that if I leave a solid carrier running at 200W, I can't >>> easily reproduce the issue and I wonder if its something being >>> affected by peak excursions with SSB? >>> >>> When things do start to go wrong, I can usually perform a manual tune >>> with the KAT500 and the fault will then not (mostly) be apparent. >>> >>> Anyway, I'm in the process of replacing the entire feeder with >>> Westflex 103 and much bigger ferrites. I will also replace the main >>> balun which is a 400W device for a 1KW device, as I think that >>> running the UK max of 400W may be pushing the spec of a 400W balun. >>> Also, the balun itself or connections to it may be faulty. >>> >>> The point now is that I have discovered some damage to the outer >>> covering of the sleeve 'balun' which may be the result of ferrites >>> overheating or may be the cause of movement of the ferrites thus >>> causing instability. Either way, heftier devices seem to be the order >>> of the day. >>> >>> Although the KPA500 temperature rise is somewhat expected, I feel >>> it's a bit higher over a short period than I would like and may be >>> due to reflected power. >>> >>> 73, >>> >>> Alan. G4GNX >>> >>> >>> ------ Original Message ------ >>> From: "David Olean" >>> To: "Peter Dougherty" >>> Cc: elecraft at mailman.qth.net >>> Sent: 01/06/2020 13:25:18 >>> Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on >>> 6m; SWR issues) >>> >>>> Hello Peter >>>> >>>> I suspect RFI as well. I do not have a KPA1500, so my advice is not >>>> worth much, but the fact that the fault only occurs when a signal is >>>> being radiated sends me a red flag. I had a similar problem here >>>> with my SPE amplifier power output. I was measuring it on an LP-100A >>>> wattmeter. It turns out that 1.8 MHz energy from the SPE amp >>>> radiated from my vertical antenna and was getting into a new wire >>>> doublet antenna and coming back down the ladder line into the shack. >>>> The ladder line was about 7 inches from the power coupler for the >>>> LP-100A. RF caused the readings to go wacky and it looked like my >>>> amplifier was going postal! The problem was high rf fields next to >>>> the power meter coupler. >>>> >>>> Ferrite balun heating can be seen with a VSWR meter if you set the >>>> power at some intermediate level, key the amp up with a steady >>>> carrier, and watch for VSWR creeping up. Loose pins in coax can >>>> also be a problem. They can heat up and disconnect or start arcing. >>>> Those problems do not typically show VSWR creep. They happen all at >>>> once usually. >>>> >>>> The KPA1500 works fine into a dummy load. (No RFI) That is a big >>>> clue. Good luck and I hope you find the problem. Maybe an RF >>>> sniffer would detect the ingress point? >>>> >>>> 73 >>>> >>>> Dave K1WHS >>>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email >>> list: http://www.qsl.net/donate.html Message delivered to >>> rmcgraw at blomand.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> lists at w2irt.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> jackbrindle at me.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com From lists at w2irt.net Tue Jun 2 01:20:19 2020 From: lists at w2irt.net (Peter Dougherty) Date: Tue, 2 Jun 2020 01:20:19 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: <075101d6389d$82a2b310$87e81930$@w2irt.net> I have an HF-Auto that is just unsuitable for contest/DX duty, even with the kludge workaround software--which often doesn't work right. I gave up on it and hope to sell it to a ragchewer who will undoubtedly make better use of it than I ever could. And I agree about the Palstar support being...unpleasant. I saved up for 3 years to buy that and I feel sick about it. I would like to find a good high-quality tuner that is reliable and able to comfortably handle 1500W and (preferably) tune automatically via CAT control. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Adrian Sent: Monday, June 1, 2020 11:32 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] NOT the feedline My recent experience with Palstar has not been good. An expensive DL1500 dummy load in which the SO239 had not been mounted correct bwith the locknut still ten turns loose, requiring dismantle and repair new out of the box by myself. Also a new expensive AT2K tuner in which the roller inductor shaft had not been graphite greased nor tensioned. My SPE amp @ 400w went out on alarm quickly until I disassembled and repaired myself. I found Palstar support rude and in self denial of the issues I raised. In hindsight I should have saved a heap of money and gone with MFJ. On 2/6/20 1:08 pm, Jim Brown wrote: > On 6/1/2020 5:47 PM, Peter Dougherty wrote: >> Ten-Tec Tuner, > > This might be it, Peter. ! I've used (and loved) the Ten Tec 229 and > 238 tuners, but some of their fixed capacitors are under-rated for > power. This is fairly well known among Ten Tec users, so I read about > it somewhere and replaced those in my tuners with caps having higher > power ratings. > > There's another design flaw -- their antenna selection switch fails to > to provide a return for RF current, using the chassis instead. This > adds inductance in series with the signal path, which increasingly > degrades SWR and crosstalk with increasing frequency. Palstar makes > the same mistake in tuners I saw at Dayton 8-10 years ago. When I > pointed it out to a guy in their booth who claimed to be its designer, > he told me I was crazy! > > 73, Jim K9YC > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From lists at w2irt.net Tue Jun 2 01:26:18 2020 From: lists at w2irt.net (Peter Dougherty) Date: Tue, 2 Jun 2020 01:26:18 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: <075501d6389e$587e2aa0$097a7fe0$@w2irt.net> It's a BIT better on ANT-2, but still faults out on occasion, and I'm not getting a true SWR reading. It is slightly more stable, though, to answer your question. - pjd -----Original Message----- From: Vic Rosenthal Sent: Tuesday, June 2, 2020 1:01 AM To: Peter Dougherty Cc: Jack Brindle ; Elecraft at mailman.qth.net Subject: Re: [Elecraft] NOT the feedline Pardon me if this has already been covered, but do you have the same problem if you connect the antenna to ANT-2 on the KPA? I know you don?t want to do this permanently, but just as a test. Victor 4X6GP > On 2 Jun 2020, at 3:47, Peter Dougherty wrote: > > ?Thanks for the reply, Jack. > > Here's a FULL summary of what is in the line at this moment from the jack on up. > > PL-259 (soldered, Amphenol 83-1SP as all are) to about 2 feet of RG-213 feeding into a Ten-Tec Tuner, which is being used only as an antenna switch and is in bypass. This is needed because the power supply fan noise on the KPA-1500 is just so overwhelming that I can only power it on when needed. I am primarily an HF operator, so ANT-1 is reserved for my HF stack. If I put the 6m antenna on ANT-2, I would need to keep the amp running. So everything goes out on ANT-1, through the TT-238. >From there, one feedline goes to the HF stack and the other to the 6m output. It gets SLIGHTLY better if I go directly from the KPA-1500 to the input box, as follows but I still experience faults. > > From there, a PL-259, and 7 or 8 feet of RG-213. Another PL-259, an Amphenol barrel connector in the input box, PL259, then approximately 65 or 70 feet of Commscope-branded LMR-400. PL-259 from that is connected to an Amphenol SO-239 female-to-N-Male, the choke balun, then the driven loop element to the antenna. > > As of Tuesday morning this will change as follows. KPA-1500 ANT-1 out, PL-259 and about 40' of Davis BuryFlex out to the remote antenna switch at the base of the HF stack. From there, about 25 more feet of BuryFlex, a barrel connector then the LMR-400 up to the 6m antenna. This will basically just be an experiment to see if there's any improvement; I'll be bypassing both the old Ten-Tec tuner/switch and the inlet box, and routing via the HF signal path and automatic antenna switch. Adding 65' of BuryFlex to the path strikes me as adding measurable and fairly significant loss to an otherwise really good, quiet antenna system, but if it lets me operate without having to worry about hard faults all the time then I'll take that as a tradeoff. > > - pjd > > -----Original Message----- > From: Jack Brindle > Sent: Monday, June 1, 2020 6:09 PM > To: Peter Dougherty > Cc: Bob McGraw K4TAX ; elecraft at mailman.qth.net > Subject: Re: [Elecraft] NOT the feedline > > Lets take another try at this. There still isn?t enough information in your emails to really determine what might be going on. >From the amplifier?s viewpoint, *everything* from the antenna jack on the back of the amplifier is part of the antenna system. So far we know it consists of some section of RG213, another of LM400, a balun of some sort, and an antenna. There are undoubtedly some adapters and couplers in between, and perhaps a few other things. Knowing exactly what these are is critical in making any suggestions. > > Every few months since we released the KPA500 we have seen emails from folks who are certain that the amplifier is causing a problem. We all build our stations for low power, then decide that adding an amplifier is needed, so we buy one. We then are faced with issues driving a lot more power into the antenna system. These are caused by deficiencies in that system, which was sized for much lower power, and almost always will contain at least one component that cannot handle the power. The last part of the KPA500 before power goes out is the directional coupler (note: it is after the low pass filters), the KPA1500 has its ATU after those components. With the KPA1500 ATU in bypass, the directional coupler becomes the last component. This is important because the directional coupler will see any problem in the antenna system, and report it. No amplifier component is in the way to modify things, we get a true picture of what follows the amplifier. So, when something glitches in the antenna system (usually an arc in a coupler, or an overheated toroid in a balun or matching unit), the directional coupler picks it up and moves to protect the amplifier. > > With this in mind, place the KPA1500 ATU into bypass and perform the test. When you see the fault occur, you then need to look at the entire antenna system, starting at the antenna jack on the back of the KPA1500. All of the components are suspect, even a new part (balun, antenna, etc), which may have been affected by high power right after installation. Be sure to looks at the RG213, and at the coupler to the LM400. You have made reference to shack feed-through, what is that, and does it use components that might have issues? > > As in past cases, find the problem in the overall antenna system, and the KPA1500 will be much happier, as will you. > > So, before we can help you, we need to know the details of the system. > > 73! > Jack, W6FB > Elecraft Engineering > > >> On Jun 1, 2020, at 2:25 PM, Peter Dougherty wrote: >> >> Your point is valid, however the underlying fact in my situation is that the new antenna with the new 1:1 current balun (i.e. feedline choke) is presenting **identically** to my old antenna that didn't have a balun. Neither better nor worse. >> >> - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of Bob McGraw K4TAX >> Sent: Monday, June 1, 2020 4:48 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] NOT the feedline >> >> Based on my experience, balun power ratings are for MATCHED conditions. It is rare that hams use a balun in a matched condition. Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on the output, while a >> 4:1 balun should see 200 ohms on the output and 50 ohms on the input. In the case of a resonant folded dipole, a 4:1 balun is typically operating in a nearly matched condition. All others combinations are unknown and random. >> >> I run about 500 watts on all bands. My baluns are rated at 5KW! It takes 3 or 4 big hunkin' pieces of ferrite to attain this power level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. No ferrite! >> >> Buy or build a balun of your choice. Using an IR temperature gun, measure the ambient temperature of the core. Run about 1/2 rated power carrier for 30 to 60 seconds. Measure the temperature again. If it is warm to hot, this is RF producing heat. And likely continuing will produce core failure. This is not a good balun for your application. >> >> One of my baluns work between the output of my KAT500 and the balanced feed line connected to the center of a 256 ft wire. That antenna works 160M - 6M with zero issues. Now, I do run a hybrid balun being a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 balun for common mode rejection. >> >> Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are not at all a proper balun design A Guanella balun will have 2 cores with 2 windings and then another 2 separate cores with another 2 windings. These are then wired to produce a 4:1 balun with good common mode rejection. Most "factory" 4:1 baluns are poorly designed and built junk. >> >> See https://www.dj0ip.de/balun-stuff/ for further references. >> >> 73 >> >> Bob, K4TAX >> >> >>> On 6/1/2020 8:45 AM, Alan - G4GNX wrote: >>> I have a similar issue with ferrite 'balun' heating, although mostly >>> tested on 40 metres. I'm using an OSCFD (Windom) which has a main >>> 4:1 balun at the feed point, but also has a sleeve 'balun' >>> consisting of >>> 8 ferrites wrapped in a plastic sleeve, about 3 feet from the feed >>> point. If I run the K3S at 100W, via the KPA500 in standby, then >>> through the KAT500 tuner, I see no problems. >>> >>> On increasing the power to 200W by using the KPA500 in Operate and >>> about 10W drive from the K3S, during a SSB 'over' the temperature of >>> the KPA500 rises and after a few minutes, the SWR readings on the >>> KPA500 and KAT500 start to rise. One of the Elecraft guys actually >>> very kindly went through my fault log and came to the conclusion >>> that the fault is with the antenna/feeder and I agree with him. What >>> is strange is that if I leave a solid carrier running at 200W, I >>> can't easily reproduce the issue and I wonder if its something being >>> affected by peak excursions with SSB? >>> >>> When things do start to go wrong, I can usually perform a manual >>> tune with the KAT500 and the fault will then not (mostly) be apparent. >>> >>> Anyway, I'm in the process of replacing the entire feeder with >>> Westflex 103 and much bigger ferrites. I will also replace the main >>> balun which is a 400W device for a 1KW device, as I think that >>> running the UK max of 400W may be pushing the spec of a 400W balun. >>> Also, the balun itself or connections to it may be faulty. >>> >>> The point now is that I have discovered some damage to the outer >>> covering of the sleeve 'balun' which may be the result of ferrites >>> overheating or may be the cause of movement of the ferrites thus >>> causing instability. Either way, heftier devices seem to be the >>> order of the day. >>> >>> Although the KPA500 temperature rise is somewhat expected, I feel >>> it's a bit higher over a short period than I would like and may be >>> due to reflected power. >>> >>> 73, >>> >>> Alan. G4GNX >>> >>> >>> ------ Original Message ------ >>> From: "David Olean" >>> To: "Peter Dougherty" >>> Cc: elecraft at mailman.qth.net >>> Sent: 01/06/2020 13:25:18 >>> Subject: Re: [Elecraft] NOT the feedline (was KPA-1500 faulting on >>> 6m; SWR issues) >>> >>>> Hello Peter >>>> >>>> I suspect RFI as well. I do not have a KPA1500, so my advice is not >>>> worth much, but the fact that the fault only occurs when a signal >>>> is being radiated sends me a red flag. I had a similar problem >>>> here with my SPE amplifier power output. I was measuring it on an >>>> LP-100A wattmeter. It turns out that 1.8 MHz energy from the SPE >>>> amp radiated from my vertical antenna and was getting into a new >>>> wire doublet antenna and coming back down the ladder line into the shack. >>>> The ladder line was about 7 inches from the power coupler for the >>>> LP-100A. RF caused the readings to go wacky and it looked like my >>>> amplifier was going postal! The problem was high rf fields next to >>>> the power meter coupler. >>>> >>>> Ferrite balun heating can be seen with a VSWR meter if you set the >>>> power at some intermediate level, key the amp up with a steady >>>> carrier, and watch for VSWR creeping up. Loose pins in coax can >>>> also be a problem. They can heat up and disconnect or start arcing. >>>> Those problems do not typically show VSWR creep. They happen all at >>>> once usually. >>>> >>>> The KPA1500 works fine into a dummy load. (No RFI) That is a big >>>> clue. Good luck and I hope you find the problem. Maybe an RF >>>> sniffer would detect the ingress point? >>>> >>>> 73 >>>> >>>> Dave K1WHS >>>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email >>> list: http://www.qsl.net/donate.html Message delivered to >>> rmcgraw at blomand.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email >> list: http://www.qsl.net/donate.html Message delivered to >> lists at w2irt.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email >> list: http://www.qsl.net/donate.html Message delivered to >> jackbrindle at me.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > k2vco.vic at gmail.com From donovanf at starpower.net Tue Jun 2 01:31:10 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Tue, 2 Jun 2020 01:31:10 -0400 (EDT) Subject: [Elecraft] NOT the feedline In-Reply-To: <44960a5d-01fd-2dad-ec74-bbd623bb7ead@audiosystemsgroup.com> Message-ID: <2111045587.441512.1591075870113.JavaMail.root@starpower.net> The Amphenol 83-1SP connector that many of us use is rated at 1000 volts RMS, That well exceeds the voltage that most amateur 1500 watt amplifiers can safely produce without much more severe internal damage to the amplifier. www.amphenolrf.com/media/downloads/305/C83-1sp.pdf 73 Frank W3LPL ----- Original Message ----- From: "Jim Brown" To: elecraft at mailman.qth.net Sent: Tuesday, June 2, 2020 2:59:17 AM Subject: Re: [Elecraft] NOT the feedline On 6/1/2020 3:31 PM, Walter Underwood wrote: > Even with a 1:1 SWR, 1000 W is pretty close to the 500 V peak rating for a UHF connector. The vast majority of HF stations with big power amps use UHF connectors throughout, and are without such problems as long as quality connectors are properly installed. The only problems I've ever had with connectors were the result the connectors being junk quality, and it hasn't been voltage breakdown. Rather I've had them fall apart, and I've had the center conductor melt. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From marklgoldberg at gmail.com Tue Jun 2 02:09:58 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Mon, 1 Jun 2020 23:09:58 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: I want to mention that my LDG AT-600Pro has a minimum capacitance that is too high for a good match to my antenna on 6 meters. Certainly seems like removing the Ten Tec tuner would be a good thing to try. Can you open the Ten Tec tuner and use an IR thermometer to monitor the components? I don't know anything about it's construction. You could see them heating up. Just running medium power of maybe 500W would slow things down and let you see the SWR increasing before the amp trips. That would confirm that something is heating up vs arcing. 73, Mark W7MLG On Mon, Jun 1, 2020 at 9:01 PM Bob McGraw K4TAX wrote: > Plus there is L1 which is 0.3uH in the circuit and C7 and C8 in the > circuit when in the bypass position. This does not allow the tuner, > even in bypass mode, to work well as an antenna switch on 6M. > > The capacitors in question are not rated for the RF current > experienced under certain load Z conditions. They heat, change value, > and the SWR creeps up. Allow them to cool and the SWR is back to the > starting point. I usually tweaked mine such that the SWR started off > a bit high, came down as I transmitted and if transmitting a bit longer > the SWR increased. Later I got tired of this and changed the group of > disk ceramic caps to 470 pf Russian doorknob caps. Problem solved. > > 73 > > Bob, K4TAX > > > On 6/1/2020 10:08 PM, Jim Brown wrote: > > his might be it, Peter. ! I've used (and loved) the Ten Tec 229 and > > 238 tuners, but some of their fixed capacitors are under-rated for > > power. This is fairly well known among Ten Tec users, so I read about > > it somewhere and replaced those in my tuners with caps having higher > > power ratings. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to marklgoldberg at gmail.com From jackbrindle at me.com Tue Jun 2 02:34:59 2020 From: jackbrindle at me.com (Jack Brindle) Date: Mon, 1 Jun 2020 23:34:59 -0700 Subject: [Elecraft] Spkrs+Ph ?? In-Reply-To: References: <91325AC0-A244-4FD1-8A5D-9E53FC69CD0D@comcast.net> Message-ID: Rich may have a very good reason. I also use that setting. My shack is a nice shed in the back yard. When my wife or daughter come out while I am operating with headphones on, the sound fro the speaker lets them know that I cannot hear them. They know to wait until I finish the current QSO, then I will stop to talk. So, there are good reasons. The down side? Since switching to a CM500 headset I haven?t been able to get a good setting on the antivox to keep from tripping the micro[hone, so I now have to use foot switch PTT. I?ll get that going in the near future. It was not a problem this weekend in wax? 73! Jack, W6FB > On Jun 1, 2020, at 9:22 PM, Nr4c wrote: > > Just a question. Why do you use speakers AND phones at same time? Maybe so that you can hear radio better but still provide speaker so that you can irritate your wife and kids in the other room? > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 1, 2020, at 10:39 PM, Rich wrote: >> >> ?Since Elecraft is so backed up. I thought would ask this question here >> >> I just received my invoice for repairs to my K3S >> >> There was a notation stating: >> SPKR + PH wrong toogle. Reset to NO >> >> I found this unusual as I have it set to YES since my headphones and stereo external speakers both plugged into the rear panel. >> >> Any idea why setting it to YES is considered wrong? >> >> I am a bit baffled?? >> >> Rich >> K3RWN >> >> Typos sent by my iphone >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From k2vco.vic at gmail.com Tue Jun 2 06:53:43 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 2 Jun 2020 13:53:43 +0300 Subject: [Elecraft] K3 QSK Timing Message-ID: <9681d17f-9832-fc32-5de3-16bf7288bbbb@gmail.com> I have finally achieved one of my life goals and am the owner of a real digital oscilloscope (Siglent SDS1202X-E). What is great about this compared to my prior life with super-cheap n-hand scopes is that it can actually measure things. So the first job I gave it was to measure the time between KEY OUT going to ground and the start of RF from my K3, as well as the time between the end of RF and KEY OUT opening. It is a K3 upgraded with the new synthesizers. So I would expect the K3S to be similar, but if anyone feels like measuring one, I would be interested. MCU Firmware is 5.64 (not quite the latest). So here is what I determined: with 35 wpm dits (or dahs, it doesn't matter) from the internal keyer in Full QSK mode, CONFIG TX DLY = 8 (normal), there is a minimum of 5.6 ms between KEY OUT low and the first whiff of RF. I say minimum, because there is a certain amount of jitter in the length of the element, and the interval is sometimes a bit longer. The interval after RF before KEY OUT goes high is similar. In semi-QSK the delay before RF is the same. Setting TX DLY to a greater value subtracts time from the keyed element and adds it to the delay. So setting it to 9 gives you a delay of 6.6 ms but the period that RF is on is 1 ms shorter. It's interesting that the normal delay with QRQ mode on is still 5.6 ms. And the jitter is still noticeable. I didn't try changing TX DLY with QRQ mode on. Results were not significantly different at speeds of 25 and 40 wpm. So if you are using it to drive an amplifier without special timing circuitry (i.e., where the key line passes through the amplifier before going to the transceiver), make sure the relays in the amplifier are fast enough! -- 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ From a.durbin at msn.com Tue Jun 2 08:40:01 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 2 Jun 2020 12:40:01 +0000 Subject: [Elecraft] K3 QSK Timing Message-ID: "So here is what I determined: with 35 wpm dits (or dahs, it doesn't matter) from the internal keyer in Full QSK mode, CONFIG TX DLY = 8 (normal), there is a minimum of 5.6 ms between KEY OUT low and the first whiff of RF. I say minimum, because there is a certain amount of jitter in the length of the element, and the interval is sometimes a bit longer. The interval after RF before KEY OUT goes high is similar." I made similar measurements on my Kenwood TS-590S with a Rogol DS1054Z. However, I also captured RX audio on one 'scope channel. I found the limiting factor for QSK was the time it took the receiver to recover after the internal TR relay had switched. The practical QSK limit for the TS-590S was about 26 wpm. Any faster than that and the receiver did not "open" between elements. 73, Andy, k3wyc From tony.kaz at verizon.net Tue Jun 2 08:48:04 2020 From: tony.kaz at verizon.net (tony.kaz at verizon.net) Date: Tue, 2 Jun 2020 08:48:04 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: <58A226A9-B090-441C-A0CD-D5EF0D699683@wunderwood.org> References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <7fe2e587-b044-83c8-ca57-09a9b34883df@foothill.net> <1aef9a86-834c-01eb-81b0-d9b851dff69b@ilstu.edu> <58A226A9-B090-441C-A0CD-D5EF0D699683@wunderwood.org> Message-ID: <039a01d638dc$0f2ff4d0$2d8fde70$@verizon.net> Walter, Yes, the UHF connector may be rated at 500V, but in practice they handle >4KV. The voltage limit is set by the air gap between the center pin and the shield. I have not had a PL-259 arc over. 73, N2TK, Tony -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Walter Underwood Sent: Monday, June 1, 2020 6:32 PM To: Elecraft Reflector Subject: Re: [Elecraft] NOT the feedline Even with a 1:1 SWR, 1000 W is pretty close to the 500 V peak rating for a UHF connector. Type N connectors are rated at 1500 V peak. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 1, 2020, at 3:17 PM, George Kidder wrote: > > One of my antennas is a commercial "G5RV" fed with 33' of 450 ohm ladder line, terminated in a PL-259 pair, with coax from there to the shack. Apparently this combination results in very high RF voltage at the PL-259, and it arcs over at 1000 W (not from an Elecraft amp!). This combo goes wild when I attempt high power on 80M, although it is stable at 100 W. Just another thing to watch out for! > > 73 - George, W3HBM > > On 6/1/2020 5:59 PM, Ted Edwards W3TB wrote: >> [This message came from an external source. If suspicious, report to >> abuse at ilstu.edu] >> >> I am following this with great interest. >> Like Alan G0GNX, I also use an OCF, RG-8X out to the current balun in >> this case, 300 ohm to the antenna. K3, KPA-500 and KAT-500. >> >> If I am running stations in a contest on 40m and also 80m CW, It "appears" >> that my VSWR rises after a half hour and then the KAT-500 starts to >> try to spontaneously retune. Doesn't happen on 20m and up. This >> past weekend in CQ WPX, I reduced drive so that output was about 300 >> watts and it all became tame. >> >> I had thought that it was a heating of the RG-8X; then I changed my >> mind to the current balun from Radiowavz that is rated for 1.5 KW. I >> think it is the balun just getting hot out there. I had used a W2AU >> 4:1 balun with my OCF, which is a voltage balun but I didn't know >> about that -- for upwards of 40 years and with the Elecraft equipment >> for about 4 years since I got the amp/tuner. I just switched to a >> current balun last year with one that I bought at Dayton. >> >> I would have expected more problem with the voltage balun than with >> the current balun. I could change back to the W2AU if needed. >> >> Interesting stuff, so I am reading along. And my thanks to all of you. >> >> On Mon, Jun 1, 2020 at 4:42 PM Fred Jensen wrote: >> >>> Nearly same experience Bob: Sloping V, 135 ft legs, from top of 80 >>> ft tower fed with homemade 600 ohm open wire using a DX Engineering >>> 4:1 "balun" [a strange, usually misunderstood piece of electronic >>> apparatus often used for the wrong reasons] rated at 10 KW. It >>> warmed up noticeably at 1.2 KW RTTY use. It helps to remember that >>> one can saturate a ferrite core [especially when very hot] which >>> creates a racket reminiscent of a non-synchronous spark gap TX. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>> On 6/1/2020 1:48 PM, Bob McGraw K4TAX wrote: >>>> Based on my experience, balun power ratings are for MATCHED >>>> conditions. It is rare that hams use a balun in a matched condition. >>>> Thus a 1:1 balun should see 50 ohms on the input and 50 ohms on >>>> the output, while a 4:1 balun should see 200 ohms on the output and 50 >>>> ohms on the input. In the case of a resonant folded dipole, a 4:1 >>>> balun is typically operating in a nearly matched condition. All >>>> others combinations are unknown and random. >>>> >>>> I run about 500 watts on all bands. My baluns are rated at 5KW! It >>>> takes 3 or 4 big hunkin' pieces of ferrite to attain this power >>>> level. My 6 meter balun is a 1/2 wavelength electrically of RG-213. >>>> No ferrite! >>>> >>>> Buy or build a balun of your choice. Using an IR temperature gun, >>>> measure the ambient temperature of the core. Run about 1/2 rated >>>> power carrier for 30 to 60 seconds. Measure the temperature again. >>>> If it is warm to hot, this is RF producing heat. And likely >>>> continuing will produce core failure. This is not a good balun for >>>> your application. >>>> >>>> One of my baluns work between the output of my KAT500 and the >>>> balanced feed line connected to the center of a 256 ft wire. That antenna >>>> works 160M - 6M with zero issues. Now, I do run a hybrid balun being >>>> a 4:1 Guanella balun as a transformer, and it is fed with a 1:1 >>>> balun for common mode rejection. >>>> >>>> Most single core, i.e. 2 or 3 cores stacked with 2 to 4 windings are >>>> not at all a proper balun design A Guanella balun will have 2 cores >>>> with 2 windings and then another 2 separate cores with another 2 >>>> windings. These are then wired to produce a 4:1 balun with good >>>> common mode rejection. Most "factory" 4:1 baluns are poorly >>>> designed and built junk. >>>> >>>> See https://www.dj0ip.de/balun-stuff/ for further references. >>>> >>>> 73 >>>> >>>> Bob, K4TAX >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email list: http://www.qsl.net/donate.html Message delivered to >>> w3tb.ted at gmail.com >> >> >> -- >> 73 de Ted Edwards, W3TB and G?PWW >> >> and thinking about operating CW: >> "Do today what others won't, >> so you can do tomorrow what others can't." >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> gkidder at ilstu.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > wunder at wunderwood.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tony.kaz at verizon.net From john at kk9a.com Tue Jun 2 09:54:41 2020 From: john at kk9a.com (john at kk9a.com) Date: Tue, 02 Jun 2020 08:54:41 -0500 Subject: [Elecraft] NOT the feedline Message-ID: <20200602085441.Horde.0F01IVZYdmrZmTvHuMhqDRJ@www11.qth.com> The RMS voltage for 1000 watts into a perfect load is <250 volts. I suspect that Tony's 4,000 voltage limit is closer to what a quality PL-259 can actually handle. If the PL-259 is arcing, there is something very wrong with either the connector, the weatherproofing or the antenna. John KK9A tony.kaz N2Tk wrote: Walter, Yes, the UHF connector may be rated at 500V, but in practice they handle >4KV. The voltage limit is set by the air gap between the center pin and the shield. I have not had a PL-259 arc over. 73, N2TK, Tony -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Walter Underwood Sent: Monday, June 1, 2020 6:32 PM To: Elecraft Reflector Subject: Re: [Elecraft] NOT the feedline Even with a 1:1 SWR, 1000 W is pretty close to the 500 V peak rating for a UHF connector. Type N connectors are rated at 1500 V peak. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) From k9ztv at socket.net Tue Jun 2 10:25:54 2020 From: k9ztv at socket.net (K9ZTV) Date: Tue, 2 Jun 2020 09:25:54 -0500 Subject: [Elecraft] K3 QSK Timing In-Reply-To: References: Message-ID: <86415CD3-28EA-4938-8A11-B5361A19A7A9@socket.net> For any practical purpose needed by amateur radio operators that I can think of, the ability to hear between elements is not a life-and-death virtue. The ability to hear between characters is by far magical enough. I speak as one who has been doing 30 wpm full-QSK traffic work for 60 years, beginning with Johnson and B&W vacuum tube electronic T/R switches common in the late fifties and early sixties. Back then the trick was to prevent RF from the transmitter being pumped directly into the receiver when both were connected ?live? to the same antenna. The other issue was how to monitor one?s sending. Some operators preferred muting their receivers and listening on an external monitor. While some electronic T/R switches did have provisions for receiver muting, if unmuting was not fast enough, QSK itself was compromised. Personally, I preferred copying on the unmuted RF-protected but RF Gain-reduced receiver itself. Using separate transmitters and receivers with no internal switching mechanism, the main worry in those days was protecting the receiver from RF. Today, using nothing but transceivers, the main worry is protecting relays from hot-switching (especially in linear amplifiers). I was reading the mail recently on a couple of high-speed ops enjoying a lengthy QSO together, punctuated by frequent break-ins from the listening side. By the time the sender had heard and reacted to the break-in, at least one and sometimes two (depending on length) complete words (not elements or characters) had already been transmitted. In short, hearing between elements gave us bragging fodder but served no real practical purpose. Hearing between characters was (and remains) way good enough for CW traffic work, and, in my opinion, Elecraft pin-diode switching is the best of the best. 73, Kent K9ZTV > On Jun 2, 2020, someone wrote: > > The practical QSK limit for the TS-590S was about 26 wpm. Any faster than that and the receiver did not "open" between elements. > From a.durbin at msn.com Tue Jun 2 11:09:17 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 2 Jun 2020 15:09:17 +0000 Subject: [Elecraft] K3 QSK Timing In-Reply-To: References: Message-ID: "In short, hearing between elements gave us bragging fodder but served no real practical purpose. " My interest was from an engineering perspective. I found that, at typical contest and DX chasing speeds, the TS-590S BDLY-FBK (full break-in) setting offered no operational advantage. I chose to set break in delay to "5" which stops the TR relay cycling for each element and still allows me to hear between characters. No reason to beat the TR relay to death. 73, Andy, k3wyc From hs0zed at gmail.com Tue Jun 2 11:17:59 2020 From: hs0zed at gmail.com (Martin Sole) Date: Tue, 2 Jun 2020 22:17:59 +0700 Subject: [Elecraft] K3 tx power troubles Message-ID: <7e46cc26-996e-73bc-527b-76c6b7ce8847@gmail.com> My aging K3, S/N 298, is once again proving a little troublesome. Into a nice solid 50 ohm dummy load with a strong 14 volt supply and short thick cables never known to be an issue I see a maximum of about 10 watts out when set to 110 watts on the front panel. Starting at 0w it increases in line with the setting until about 3.5 watts. The LPA stops there and then when the KPA3 comes in it goes up to about 10 watts but beyond that no further increase. I presume this is a either a drive or and LPA issue but I suspect the actual cause might be well known here. What are the chances? Regards Martin, HS0ZED From rmcgraw at blomand.net Tue Jun 2 11:26:41 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Tue, 2 Jun 2020 10:26:41 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: As a rule, if one needs a tuner to get a good match on 6M, I'd say they need to look carefully at their antenna system.? My 6M yagi shows less than 1.5:1 over the lower 2 MHz of the band, 50.0 - 52.0 MHz.? The lowest SWR occurs at 50.2 with a Z value of 42 ohms and an X value of 0.0.? Of course higher gain antennas typically have a bit less bandwidth, but still, the lower 1 MHz should be totally usable without a tuner. Besides, tuners only make the transmitter happy and the added feed line loss due to SWR still remains. 73 Bob, K4TAX On 6/2/2020 1:09 AM, Mark Goldberg wrote: > I want to mention that my LDG AT-600Pro has a minimum capacitance that > is too high for a good match to my antenna on 6 meters. Certainly > seems like removing the Ten Tec tuner would be a good thing to try. > Can you open the Ten Tec tuner and use an IR thermometer to monitor > the components? I don't know anything about it's construction. You > could see them heating up. > > Just running medium power of maybe 500W would slow things down and let > you see the SWR increasing before the amp trips. That would confirm > that something is heating up vs arcing. > > 73, > > Mark > W7MLG > > On Mon, Jun 1, 2020 at 9:01 PM Bob McGraw K4TAX > wrote: > > Plus there is L1 which is 0.3uH in the circuit and C7 and C8 in the > circuit when in the bypass position.? This does not allow the tuner, > even in bypass mode, to work well as an antenna switch on 6M. > > ??The capacitors in question are not rated for the RF current > experienced under certain load Z conditions.? They heat, change > value, > and the SWR creeps up.? Allow them to cool and the SWR is back to the > starting point.??? I usually tweaked mine such that the SWR > started off > a bit high, came down as I transmitted and if transmitting a bit > longer > the SWR increased.?? Later I got tired of this and changed the > group of > disk ceramic caps to 470 pf Russian doorknob caps.? Problem solved. > > 73 > > Bob, K4TAX > > > On 6/1/2020 10:08 PM, Jim Brown wrote: > > his might be it, Peter. ! I've used (and loved) the Ten Tec 229 and > > 238 tuners, but some of their fixed capacitors are under-rated for > > power. This is fairly well known among Ten Tec users, so I read > about > > it somewhere and replaced those in my tuners with caps having > higher > > power ratings. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to marklgoldberg at gmail.com > > From elanzl at sbcglobal.net Tue Jun 2 11:34:25 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Tue, 2 Jun 2020 15:34:25 +0000 (UTC) Subject: [Elecraft] SSB Net 5-31-2020 References: <1178987931.1669019.1591112065619.ref@mail.yahoo.com> Message-ID: <1178987931.1669019.1591112065619@mail.yahoo.com> Here is the log for the Sunday May 31, 2020 SSB Net. The net meets on Sundays at 14.303.5 at 1800Z. At 18:45Z there is a 40m net on 7.280 with WM6P Steve as the net control. Look for an 80M. net with Paul K89AVO as net control. Everyone is welcome to join the net. Eric WB9JNZ Call???????????? Name????? State?????? Radio????? Serial #?? QRP???????????????????????????????????????? Notes WB9JNZ???????? ?? Eric?????????????? ? IL??????????????????? K3????????????????? 4017????????????? ???????????????????????????????????????????????? Netcontrol K8NU/7????????? ?? Carl?????????????? ? OH/WA???? ? ? ? Yaesu FT??????? 2000????????????? ???????????????????????????????????????????????? ? KB9AVO??????? ? ? Paul????????????? ? IN??????????????? ? ? K3S????????????? 11103??????????? ???????????????????????????????????????????????? ? NC0JW?????????? ?? Jim?????????????? ?? CO??????????????? ? KX3??????????????? 1356????????????? ???????????????????????????????????????????????? RelayStation WM6P??????????? ?? Steve????????????? GA??????????????? ?? K3S????????????? 11453??????????? ??????????????????????????????????????????????? ?? RelayStation N4NRW???????????? Roger????????? ? ? SC??????????????? ?? K3???????????????? 1318????????????? ?????????????????????????????????????????????? ?? RelayStation KF7ZN???????????? ? Ron??????????? ?? ? UT?????????????????? K3S???????????? 10832??????????? ???????????????????????????????????????????????? ? K7BRR???????????? ? Bill?????????????? ?? AZ?????????????? ? ? K3S????????????? 10939??????????? ???????????????????????????????????????????????? ? K5APL?????????????? Wes??????????????? AR??????????????? ?? K2????????????????? 3505????????????? ???????????????????????????????????????????????? ? N6JW/M???????????? John??????????????? CA?????????????? ?? KX3???????????? ?? ? 515??????????????? ???????????????????????????????????????????????? RelayStation KO5V??????????????? Jim????????????? ?? ? NM????????????????? K2/100?????????? 7225????????????? ???????????????????????????????????????????????? ? AD5XD?????????? ?? Milt????????????? ? ? TX???????????????? ?? K3????????????????? 3203????????????? ???????????????????????????????????????????????? ? K1NW???????????? ?? Brian??????????? ?? RI????????????????? ?? K3????????????????? 4974????????????? ??????????????????????????????????????????????? ? RelayStation W9PCS?????????? ?? Paul????????????? ? WI ???????????? ? ? ? K3S????????????? 10752??????????? ???????????????????????????????????????????????? ? W4DML??????? ? ? ? Doug??????????? ? TN?????????????? ? ?? K3????????????????? 6433????????????? ???????????????????????????????????????????????? ? K6VWE???????? ? ?? Stan????????? ?? ?? MI?????????????? ? ? ? K3???????????????? ?? 650??????????????? ???????????????????????????????????????????????? ? W7QHD???????? ? ?? Kurt??????????? ? ? AZ??????????????????? K2/100?????? ? ? 1538????????????? ???????????????????????????????????????????????? ? N2TNQ?????????? ? ? Len????????????? ?? NJ??????????????? ? ? K3??????????????? ?? 5270????????????? ???????????????????????????????????????????????? ? K0JFJ???????????????? Nick????????????? ? MN?????????????????? K2???????????????? ? 1937????????????? ???????????????????????????????????????????????? ? From lists at w2irt.net Tue Jun 2 11:49:43 2020 From: lists at w2irt.net (Peter Dougherty) Date: Tue, 2 Jun 2020 11:49:43 -0400 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: <078501d638f5$6f5012f0$4df038d0$@w2irt.net> Just to clarify, I was **NOT** using the tuner to tune the 6m antenna system. I was using it as a coax switch, so I could keep the KPA-1500 powered down (silencing the very noisy PSU fan) and still be able to receive 6m as well as other bands. I need the room to be quiet since my XYL is working-from-home a few feet away from me in the same room, and the KPA's power supply fan is bothersome to both her and me. Ideally, the KPA-1500 should be able to default to either ANT-1 or ANT-2 in power-down mode but that is not the case. So I need a quiet alternative. I'm not a fan of tuners of any kind. In any event, the TT-238 is out of line now and the SWR problem is MARGINALLY better on the KPA-1500. It's still showing a higher SWR than the antenna analyzer measured but it hasn't folded back yet. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Mark Goldberg Sent: Tuesday, June 2, 2020 2:10 AM To: Bob McGraw K4TAX Cc: Elecraft Mailing List Subject: Re: [Elecraft] NOT the feedline I want to mention that my LDG AT-600Pro has a minimum capacitance that is too high for a good match to my antenna on 6 meters. Certainly seems like removing the Ten Tec tuner would be a good thing to try. Can you open the Ten Tec tuner and use an IR thermometer to monitor the components? I don't know anything about it's construction. You could see them heating up. Just running medium power of maybe 500W would slow things down and let you see the SWR increasing before the amp trips. That would confirm that something is heating up vs arcing. 73, Mark W7MLG On Mon, Jun 1, 2020 at 9:01 PM Bob McGraw K4TAX wrote: > Plus there is L1 which is 0.3uH in the circuit and C7 and C8 in the > circuit when in the bypass position. This does not allow the tuner, > even in bypass mode, to work well as an antenna switch on 6M. > > The capacitors in question are not rated for the RF current > experienced under certain load Z conditions. They heat, change value, > and the SWR creeps up. Allow them to cool and the SWR is back to the > starting point. I usually tweaked mine such that the SWR started off > a bit high, came down as I transmitted and if transmitting a bit longer > the SWR increased. Later I got tired of this and changed the group of > disk ceramic caps to 470 pf Russian doorknob caps. Problem solved. > > 73 > > Bob, K4TAX > > > On 6/1/2020 10:08 PM, Jim Brown wrote: > > his might be it, Peter. ! I've used (and loved) the Ten Tec 229 and > > 238 tuners, but some of their fixed capacitors are under-rated for > > power. This is fairly well known among Ten Tec users, so I read > > about it somewhere and replaced those in my tuners with caps having > > higher power ratings. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > marklgoldberg at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From rmcgraw at blomand.net Tue Jun 2 11:50:48 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Tue, 2 Jun 2020 10:50:48 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: <20200602085441.Horde.0F01IVZYdmrZmTvHuMhqDRJ@www11.qth.com> References: <20200602085441.Horde.0F01IVZYdmrZmTvHuMhqDRJ@www11.qth.com> Message-ID: <5203b31a-e3b1-ff95-2710-5d209b5c833d@blomand.net> It is correct that there is no such thing as a breakdown voltage, as stated earlier. This becomes obvious since the units are given as V/m, which is represents Volts per meter, or Electric Field strength. Also, unless one is measuring the field in between two plane parallel metallic plates, the Electric Field will, in general, not be uniform, I.e., the field strength (the amount of "pull" on an electron), will vary with position. This shape does matter, and sharply pointed emitters can cause breakdown at values considerably less than the maximum measured in a uniform field. The Volts/meter relationship is also pressure-dependent, and this relationship goes nonlinear at low pressures (not enough charge carriers) following Paschen's law . It also varies with humidity and other contaminants, which usually increase arcing. 73 Bob, K4TAX On 6/2/2020 8:54 AM, john at kk9a.com wrote: > > The RMS voltage for 1000 watts into a perfect load is <250 volts. I > suspect that Tony's 4,000 voltage limit is closer to what a quality > PL-259 can actually handle. If the PL-259 is arcing, there is > something very wrong with either the connector, the weatherproofing or > the antenna. > > John KK9A > > > > From marklgoldberg at gmail.com Tue Jun 2 11:53:53 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Tue, 2 Jun 2020 08:53:53 -0700 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: I failed to mention, my antenna system is a 300 ft long horizontal loop fed by ladder line with a homebrew two core switchable 1:1 or 4:1 Guanella current mode Balun. The Balun has a measured return loss of about 32 dB at 50 MHz with a 200 ohm resistive load. That was surprisingly good, but confirmed with a calibrated VNA. Yes, I spent some time with Jerry Sevick's book. The antenna is not deluxe for 50 MHz, but it is all I have. It's just so happens that only small values are required in the tuner to match it, and the LDG tuner parasitic capacitance it too high even when in bypass mode. I expect it is difficult to build a physically large high power tuner and keep the parasitics down, so the Ten Tec may have similar issues. As I said, I know nothing about it. From Peter's most recent email, this may be the case. 73, Mark W7MLG On Tue, Jun 2, 2020 at 8:26 AM Bob McGraw K4TAX wrote: > As a rule, if one needs a tuner to get a good match on 6M, I'd say they > need to look carefully at their antenna system. My 6M yagi shows less than > 1.5:1 over the lower 2 MHz of the band, 50.0 - 52.0 MHz. The lowest SWR > occurs at 50.2 with a Z value of 42 ohms and an X value of 0.0. Of course > higher gain antennas typically have a bit less bandwidth, but still, the > lower 1 MHz should be totally usable without a tuner. > > Besides, tuners only make the transmitter happy and the added feed line > loss due to SWR still remains. > > 73 > > Bob, K4TAX > > > On 6/2/2020 1:09 AM, Mark Goldberg wrote: > > I want to mention that my LDG AT-600Pro has a minimum capacitance that is > too high for a good match to my antenna on 6 meters. Certainly seems like > removing the Ten Tec tuner would be a good thing to try. Can you open the > Ten Tec tuner and use an IR thermometer to monitor the components? I don't > know anything about it's construction. You could see them heating up. > > Just running medium power of maybe 500W would slow things down and let you > see the SWR increasing before the amp trips. That would confirm that > something is heating up vs arcing. > > 73, > > Mark > W7MLG > > From rmcgraw at blomand.net Tue Jun 2 12:18:08 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Tue, 2 Jun 2020 11:18:08 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: <803fc76b-6aca-586a-9b0f-23fbef20307b@blomand.net> The Tentec 238 tuner does have some values of L and C components in the circuit when in the Bypass mode.? These are L1 which is 0.3uH and C7 & C8 which are 250 pf in series.?? The tuner is designed for use between 1.8 and 30 MHz.?? Thus I would not advise using it as an antenna switch on 50 MHz and certainly not to resolve a match on 50 MHz. You may find that adjustment in the ladder line length {just a couple of ft, more or less, for 6M}? will aid in the LDG tuner finding a better match with existing component values and parasitic capacitance. 73 Bob, K4TAX On 6/2/2020 10:53 AM, Mark Goldberg wrote: > I failed to mention, my antenna system is a 300 ft long horizontal > loop fed by ladder line with a homebrew two core switchable 1:1 or 4:1 > Guanella current mode Balun. The Balun has a measured return loss of > about 32 dB at 50 MHz with a 200 ohm resistive load. That was > surprisingly good, but confirmed with a calibrated VNA. Yes, I spent > some time with Jerry Sevick's book. > > The antenna is not deluxe for 50 MHz, but it is all I have. It's just > so happens that only small values are required in the tuner to match > it, and the LDG tuner parasitic capacitance it too high even when in > bypass mode. I expect it is difficult to build a physically large high > power tuner and keep the parasitics down, so the Ten Tec may have > similar issues. As I said, I know nothing about it. From Peter's most > recent email, this may be the case. > > 73, > > Mark > W7MLG > > On Tue, Jun 2, 2020 at 8:26 AM Bob McGraw K4TAX > wrote: > > As a rule, if one needs a tuner to get a good match on 6M, I'd say > they need to look carefully at their antenna system.? My 6M yagi > shows less than 1.5:1 over the lower 2 MHz of the band, 50.0 - > 52.0 MHz.? The lowest SWR occurs at 50.2 with a Z value of 42 ohms > and an X value of 0.0.? Of course higher gain antennas typically > have a bit less bandwidth, but still, the lower 1 MHz should be > totally usable without a tuner. > > Besides, tuners only make the transmitter happy and the added feed > line loss due to SWR still remains. > > 73 > > Bob, K4TAX > > > On 6/2/2020 1:09 AM, Mark Goldberg wrote: >> I want to mention that my LDG AT-600Pro has a minimum capacitance >> that is too high for a good match to my antenna on 6 meters. >> Certainly seems like removing the Ten Tec tuner would be a good >> thing to try. Can you open the Ten Tec tuner and use an IR >> thermometer to monitor the components? I don't know anything >> about it's construction. You could see them heating up. >> >> Just running medium power of maybe 500W would slow things down >> and let you see the SWR increasing before the amp trips. That >> would confirm that something is heating up vs arcing. >> >> 73, >> >> Mark >> W7MLG >> From ab4iq at comcast.net Tue Jun 2 12:19:54 2020 From: ab4iq at comcast.net (Ed Pflueger) Date: Tue, 2 Jun 2020 11:19:54 -0500 Subject: [Elecraft] NOT the feedline In-Reply-To: References: <05fa01d637b4$2553acd0$6ffb0670$@w2irt.net> <5ed46299.1c69fb81.dcb3e.9364@mx.google.com> <062b01d637bc$3e803fe0$bb80bfa0$@w2irt.net> <0c7e3c14-33fa-1ba1-6f3c-dc4e941e7807@gmail.com> <065101d637ca$25cf6a80$716e3f80$@w2irt.net> <27084278-1372-c7ef-8b09-cb23cb862e5b@metrocast.net> <071101d6385b$372688e0$a5739aa0$@w2irt.net> <073001d63877$63b1f900$2b15eb00$@w2irt.net> Message-ID: <008501d638f9$a806d300$f8147900$@comcast.net> I have a HY-Gain VB-66DX and 1.4 is the normal case basically across the whole band. I must be messing up somewhere, even the KPA1500 likes it. I have never run it over 1200 Watts on 6 meters and never requires over 30 watts drive to obtain 1200 out. I have three feet of 213U from amp to Palstar HF-AUTO (Bypass Mode), 70ft. of 9913 from the Palstar to a DX-Engineering 8 position Antenna switch, to my lightening protection and the final trip of 40ft of 213U to the antenna. The antenna is actually 10ft. above my HY-GAIN TH11 which also does not require a tuner. The Palstar is my antenna switch essentially but I do need it on my HY-GAIN HY-TOWER only on 160 and 80 meters when needed. That's the end of my good luck story. LOL Ed..AB4IQ -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Bob McGraw K4TAX Sent: Tuesday, June 2, 2020 10:27 AM To: Mark Goldberg Cc: Elecraft Mailing List Subject: Re: [Elecraft] NOT the feedline As a rule, if one needs a tuner to get a good match on 6M, I'd say they need to look carefully at their antenna system. My 6M yagi shows less than 1.5:1 over the lower 2 MHz of the band, 50.0 - 52.0 MHz. The lowest SWR occurs at 50.2 with a Z value of 42 ohms and an X value of 0.0. Of course higher gain antennas typically have a bit less bandwidth, but still, the lower 1 MHz should be totally usable without a tuner. Besides, tuners only make the transmitter happy and the added feed line loss due to SWR still remains. 73 Bob, K4TAX On 6/2/2020 1:09 AM, Mark Goldberg wrote: > I want to mention that my LDG AT-600Pro has a minimum capacitance that > is too high for a good match to my antenna on 6 meters. Certainly > seems like removing the Ten Tec tuner would be a good thing to try. > Can you open the Ten Tec tuner and use an IR thermometer to monitor > the components? I don't know anything about it's construction. You > could see them heating up. > > Just running medium power of maybe 500W would slow things down and let > you see the SWR increasing before the amp trips. That would confirm > that something is heating up vs arcing. > > 73, > > Mark > W7MLG > > On Mon, Jun 1, 2020 at 9:01 PM Bob McGraw K4TAX > wrote: > > Plus there is L1 which is 0.3uH in the circuit and C7 and C8 in the > circuit when in the bypass position. This does not allow the tuner, > even in bypass mode, to work well as an antenna switch on 6M. > > The capacitors in question are not rated for the RF current > experienced under certain load Z conditions. They heat, change > value, > and the SWR creeps up. Allow them to cool and the SWR is back to the > starting point. I usually tweaked mine such that the SWR > started off > a bit high, came down as I transmitted and if transmitting a bit > longer > the SWR increased. Later I got tired of this and changed the > group of > disk ceramic caps to 470 pf Russian doorknob caps. Problem solved. > > 73 > > Bob, K4TAX > > > On 6/1/2020 10:08 PM, Jim Brown wrote: > > his might be it, Peter. ! I've used (and loved) the Ten Tec 229 and > > 238 tuners, but some of their fixed capacitors are under-rated for > > power. This is fairly well known among Ten Tec users, so I read > about > > it somewhere and replaced those in my tuners with caps having > higher > > power ratings. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to marklgoldberg at gmail.com > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ab4iq at comcast.net From alorona at sbcglobal.net Tue Jun 2 12:39:42 2020 From: alorona at sbcglobal.net (Al Lorona) Date: Tue, 2 Jun 2020 16:39:42 +0000 (UTC) Subject: [Elecraft] K3 QSK Timing In-Reply-To: <9681d17f-9832-fc32-5de3-16bf7288bbbb@gmail.com> References: <9681d17f-9832-fc32-5de3-16bf7288bbbb@gmail.com> Message-ID: <2123869878.1740383.1591115982479@mail.yahoo.com> Really interesting, Vic. Here's a minor point: Instead of measuring to the "first whiff" of RF, I'd probably measure to the point of 90% of max RF value. This is because the rise time of a pulse is usually defined as the time to go from 10% to 90% of the final (peak) value.? Congratulations on your new scope. Al? W6LX From n6kr at elecraft.com Tue Jun 2 13:17:55 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 2 Jun 2020 10:17:55 -0700 Subject: [Elecraft] OT: Looking for Wilderness Radio "SST" transceiver manual Message-ID: Yeah, I know...I wrote the manual, so you'd think I'd have a copy lying around :) But all I have is the Word files, which are now too old to be read on any computer I own. Anyone have a printed copy they'd be willing to part with? A friend of mine has the SST kit but no manual. Tnx Wayne N6KR From tfricke at web.de Tue Jun 2 13:27:01 2020 From: tfricke at web.de (Thorsten Fricke) Date: Tue, 2 Jun 2020 19:27:01 +0200 Subject: [Elecraft] OT: Looking for Wilderness Radio "SST" transceiver manual In-Reply-To: References: Message-ID: <064d5c88-bed3-6069-ed6b-e9dbcf12a168@web.de> Wayne Am 02.06.20 um 19:17 schrieb Wayne Burdick: > Yeah, I know...I wrote the manual, so you'd think I'd have a copy lying around :) But all I have is the Word files, which are now too old to be read on any computer I own. You may want to install Libre Office on any of your computers, open the Word files with that and safe it as PDF ;-) Libre Office is available for Linux and Windows....and I think, also for Macs ;-) 73 and good luck de DH4FT, Thorsten From john at kk9a.com Tue Jun 2 13:31:32 2020 From: john at kk9a.com (john at kk9a.com) Date: Tue, 02 Jun 2020 12:31:32 -0500 Subject: [Elecraft] OT: Looking for Wilderness Radio "SST" transceiver manual Message-ID: <20200602123132.Horde.gqpcJdizjVHad69LPgvGptP@www11.qth.com> Try google https://qrpbuilder.com/wp-content/uploads/2017/04/sst_manual_042217.pdf John KK9A Wayne Burdick n6kr wrote: Yeah, I know...I wrote the manual, so you'd think I'd have a copy lying around :) But all I have is the Word files, which are now too old to be read on any computer I own. Anyone have a printed copy they'd be willing to part with? A friend of mine has the SST kit but no manual. Tnx Wayne N6KR From n6kr at elecraft.com Tue Jun 2 13:36:02 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 2 Jun 2020 10:36:02 -0700 Subject: [Elecraft] OT: Looking for Wilderness Radio "SST" transceiver manual In-Reply-To: References: Message-ID: <26931DE8-246B-4E30-9218-093B76B5042F@elecraft.com> Thank you to all who responded. I now have a usable copy of the .pdf. 73, Wayne N6KR > On Jun 2, 2020, at 10:17 AM, Wayne Burdick wrote: > > Yeah, I know...I wrote the manual, so you'd think I'd have a copy lying around :) But all I have is the Word files, which are now too old to be read on any computer I own. > > Anyone have a printed copy they'd be willing to part with? A friend of mine has the SST kit but no manual. > > Tnx > Wayne > N6KR > From raysills3 at verizon.net Tue Jun 2 13:54:58 2020 From: raysills3 at verizon.net (Raymond Sills) Date: Tue, 2 Jun 2020 17:54:58 +0000 (UTC) Subject: [Elecraft] OT: Looking for Wilderness Radio "SST" transceiver manual In-Reply-To: <20200602123132.Horde.gqpcJdizjVHad69LPgvGptP@www11.qth.com> References: <20200602123132.Horde.gqpcJdizjVHad69LPgvGptP@www11.qth.com> Message-ID: <611089013.556107.1591120498928@mail.yahoo.com> Well..... there you are! ? All ready to be read. ?:) ? ? 73 de Ray ?? ? ?K2ULR ? ?KX3 #211 ? ? -----Original Message----- To: elecraft at mailman.qth.net Sent: Tue, Jun 2, 2020 1:31 pm Subject: Re: [Elecraft] OT: Looking for Wilderness Radio "SST" transceiver manual Try google? https://qrpbuilder.com/wp-content/uploads/2017/04/sst_manual_042217.pdf John KK9A Wayne Burdick n6kr wrote: Yeah, I know...I wrote the manual, so you'd think I'd have a copy? lying around :)? But all I have is the Word files, which are now too? old to be read on any computer I own. Anyone have a printed copy they'd be willing to part with? A friend of? mine has the SST kit but no manual. Tnx Wayne N6KR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to raysills3 at verizon.net From keith at elecraft.com Tue Jun 2 13:58:47 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Tue, 2 Jun 2020 10:58:47 -0700 Subject: [Elecraft] Spkrs+Ph ?? K3 In-Reply-To: <91325AC0-A244-4FD1-8A5D-9E53FC69CD0D@comcast.net> References: <91325AC0-A244-4FD1-8A5D-9E53FC69CD0D@comcast.net> Message-ID: Sorry Rich that I did not explain it well, kinda rushed here... There is a + - toggle (by tapping 1 in that menu) to change the sense for the phones socket switch. We had a change in suppliers for that socket and it went from being open or grounded sense when the phones are plugged in depending on the vintage of the KIO3-Audio board phones socket. If in the wrong position, you can restore audio by setting spkr+ph to Yes but the rest of the audio gets all fubar. So when I corrected the +-, there was no need to set to Yes, so I set to no assuming you had set to yes to get audio. Confusing enough? hi hi ( there is more info in the K3 Utility Firmware notes). You are welcome to set to yes or no as you like, just don't tap 1 in that menu or you may have to change it back. *** Also depending on the vintage of radio Front Panel, if you do a reset (EE INIT) it may get toggled wrong. In any case, the test (which I do at checkout) is to set spkr+ph to NO and if the audio goes away (with no phones plugged in), I set the toggle correctly. I saved your config after checkout, so the toggle "should" get saved in that. Keith WE6R Elecraft K3 Tech. From k2vco.vic at gmail.com Tue Jun 2 15:25:57 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 2 Jun 2020 22:25:57 +0300 Subject: [Elecraft] K3 QSK Timing In-Reply-To: <2123869878.1740383.1591115982479@mail.yahoo.com> References: <9681d17f-9832-fc32-5de3-16bf7288bbbb@gmail.com> <2123869878.1740383.1591115982479@mail.yahoo.com> Message-ID: <3d5e8fd2-3404-6af1-f1bf-24b5b3820435@gmail.com> Well, that is probably how Elecraft came up with the published spec of 8 ms. But since what I'm concerned with is preventing hot-switching, my number is more useful. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 02/06/2020 19:39, Al Lorona wrote: > Really interesting, Vic. Here's a minor point: Instead of measuring > to the "first whiff" of RF, I'd probably measure to the point of 90% > of max RF value. This is because the rise time of a pulse is usually > defined as the time to go from 10% to 90% of the final (peak) value. > > Congratulations on your new scope. > > Al W6LX > From d.cutter at ntlworld.com Tue Jun 2 15:55:42 2020 From: d.cutter at ntlworld.com (CUTTER DAVID) Date: Tue, 2 Jun 2020 20:55:42 +0100 (BST) Subject: [Elecraft] Spkrs+Ph ?? K3 In-Reply-To: References: <91325AC0-A244-4FD1-8A5D-9E53FC69CD0D@comcast.net> Message-ID: <1058301489.412849.1591127742537@mail2.virginmedia.com> From w6sx at arrl.net Tue Jun 2 18:39:59 2020 From: w6sx at arrl.net (Hank Garretson) Date: Tue, 2 Jun 2020 15:39:59 -0700 Subject: [Elecraft] KPA1500 power per frequency bin Message-ID: It sure would be nice if KPA1500 remembered K3 power for each frequency bin instead of for each band. Is there a menu item to make this happen? Or is it a feature request. Contest, Cope Exuberantly, Hank, W6SX From k5rhd.73 at gmail.com Tue Jun 2 18:42:09 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Tue, 2 Jun 2020 16:42:09 -0600 Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails Message-ID: Hi all, I am trying to do the RF Calibration test using my new XG3. I am getting the error below. I have all firmware up to date on the K3s and the XG3. I even tried reloading the firmware on the K3s just to see if that worked. Of course turning it off and back on again did nothing either. I DO have the SUB RX on this rig as well, ideas? TIA and 73, K5RHD /Randy Elecraft K3 Utility for OS X Revision 1.18.6.28 OS X Version 10.15.4 K3 MCU revision 05.67. RS-232 speed 38400 bps. Turning sub receiver off Unlinking VFOs Selecting Antenna 1 Setting mode to CW Turning squelch off Turning Preamplifier off Turning Attenuator off Setting Filter Width to 100 Hertz Setting RF Gain to maximum Turning CW Tune on Writing factory default calibration data Writing calibration table to DSP Delay 100 ms K3 did not respond to DSP command !bc20007401350137023802390139033C033A023C033B033D043E053E063D063C083F093C0C3C0D3E0E3D103F0F3C0F400E3F0F3F103E143F1A401F41223F273F2D41333F3E404A4150403B3F113E0244013E003F0041003F003F0140004000400141033D064313412041243F18400B410742033C0442014100EE007451236D5338; Power cycle K3 and try calibration again. From jackbrindle at me.com Tue Jun 2 18:53:16 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 2 Jun 2020 15:53:16 -0700 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: References: Message-ID: <62BEEEBA-E0CC-47AE-AD9D-61EC148AE61F@me.com> It?s not a KPA1500 function, but rather a K3 function. And the K3 has no concept of KPA ATU bins. 73! Jack, W6FB > On Jun 2, 2020, at 3:39 PM, Hank Garretson wrote: > > It sure would be nice if KPA1500 remembered K3 power for each frequency bin > instead of for each band. > > Is there a menu item to make this happen? Or is it a feature request. > > Contest, Cope Exuberantly, > > Hank, W6SX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From clawsoncw at gmail.com Tue Jun 2 21:10:52 2020 From: clawsoncw at gmail.com (Carl Clawson) Date: Tue, 2 Jun 2020 18:10:52 -0700 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: <62BEEEBA-E0CC-47AE-AD9D-61EC148AE61F@me.com> References: <62BEEEBA-E0CC-47AE-AD9D-61EC148AE61F@me.com> Message-ID: Regardless of how it would have to be implemented, Hank hit the nail squarely on the head here. As I go up and down the band (especially low bands where the antennas are skinny and every increment of power is to be treasured) I have to either dial back my power when the KPA ATU is working harder, or accept lowered power on those frequencies where the ATU is loafing. It may be too late for the K3, but Elecraft software guys, please figure out how to make the K4 and KPA1500 talk to each other and make this happen. Your customers will appreciate it! 73, Carl WS7L On Tue, Jun 2, 2020 at 3:54 PM Jack Brindle via Elecraft < elecraft at mailman.qth.net> wrote: > It?s not a KPA1500 function, but rather a K3 function. And the K3 has no > concept of KPA ATU bins. > > 73! > Jack, W6FB > > > > On Jun 2, 2020, at 3:39 PM, Hank Garretson wrote: > > > > It sure would be nice if KPA1500 remembered K3 power for each frequency > bin > > instead of for each band. > > > > Is there a menu item to make this happen? Or is it a feature request. > > > > Contest, Cope Exuberantly, > > > > Hank, W6SX > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to jackbrindle at me.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to clawsoncw at gmail.com From lists at w2irt.net Tue Jun 2 23:15:15 2020 From: lists at w2irt.net (Peter Dougherty) Date: Tue, 2 Jun 2020 23:15:15 -0400 Subject: [Elecraft] FIXED--was NOT the feedline Message-ID: <07f601d63955$34409760$9cc1c620$@w2irt.net> HI all, A postscript to the problem. First off, a huge thank you to the many replies received. I was fortunate that the problem was not in the KPA-1500 as I'd originally feared. Much troubleshooting within the past few days. Originally the amp was "iffy" on the old M-squared 6m5, and problematic (faulting) during damp or wet weather. This prompted the replacement of both the antenna and feedline. The hard faults were still occurring, until it was suggested the Ten-Tec 238 tuner that I was using exclusively for the built-in antenna switch was now the issue. I took this out of line today, and lowered the tower to fine-tune the LFA's feed point and now everything is humming along just nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry conditions. I will keep my fingers crossed that the wet weather expected in the next day or so won't bother it all that much. The final step was to move the 6m feedline from the secondary inlet box to the main antenna switch on the big tower. The downside here is I now have an additional 70 feet of BuryFlex in the line, so I'm guessing a total of about 1.5 to 1.7dB of feedline loss. This is something I would like to address in the future with an eye to dropping it below 1dB. Screencaps: https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20switch.png?dl=0 And https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%20tuning.png?dl=0 And for the balun discussion, this is what's in place, before the double-walled heat-shrink was applied: https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl=0 - pjd From w6sx at arrl.net Tue Jun 2 23:25:11 2020 From: w6sx at arrl.net (Hank Garretson) Date: Tue, 2 Jun 2020 20:25:11 -0700 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: References: <62BEEEBA-E0CC-47AE-AD9D-61EC148AE61F@me.com> Message-ID: Here's what happens to me. I train KPA1500 ATU at center of each frequency bin across a ham band. I transmit in one bin and KPA1500 output is say 1350 watts.. I transmit in another bin and KPA1500 output is above 1500 watts. I have to keep adjusting K3 power as I move around band. A bother and nuisance. Clearly KPA 1500 knows K3 frequency, either via Aux cable or sense. Either way KPA1500 knows what ATU bin to use. If KPA1500 is Operate, then it tells K3 to use last power, say 30 watts, I selected for KPA1500 Operate for whatever band is in use. If KPA1500 is Standby, then it tells K3 to use last power, say 100 watts, I selected for KPA1500 Standby for whatever band is in use. KPA1500 remembers and tells K3 what power to use per band. Since KPA1500 "knows" if I'm in OPR or STBY and what bin I'm in, it would sure be nice if it could remember and command K3 power appropriately. Contest, Cope Exuberantly, Hank, W6SX On Tue, Jun 2, 2020 at 6:13 PM Carl Clawson wrote: > Regardless of how it would have to be implemented, Hank hit the nail > squarely on the head here. As I go up and down the band (especially low > bands where the antennas are skinny and every increment of power is to be > treasured) I have to either dial back my power when the KPA ATU is working > harder, or accept lowered power on those frequencies where the ATU is > loafing. > > It may be too late for the K3, but Elecraft software guys, please figure > out how to make the K4 and KPA1500 talk to each other and make this happen. > > Your customers will appreciate it! > > 73, Carl WS7L > > On Tue, Jun 2, 2020 at 3:54 PM Jack Brindle via Elecraft < > elecraft at mailman.qth.net> wrote: > > > It?s not a KPA1500 function, but rather a K3 function. And the K3 has no > > concept of KPA ATU bins. > > > > 73! > > Jack, W6FB > > > > > > > On Jun 2, 2020, at 3:39 PM, Hank Garretson wrote: > > > > > > It sure would be nice if KPA1500 remembered K3 power for each frequency > > bin > > > instead of for each band. > > > > > > Is there a menu item to make this happen? Or is it a feature request. > > > > > > Contest, Cope Exuberantly, > > > > > > Hank, W6SX > > > ______________________________________________________________ > > > Elecraft mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: http://mailman.qth.net/mmfaq.htm > > > Post: mailto:Elecraft at mailman.qth.net > > > > > > This list hosted by: http://www.qsl.net > > > Please help support this email list: http://www.qsl.net/donate.html > > > Message delivered to jackbrindle at me.com > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to clawsoncw at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6sx at arrl.net From ockmrzr at gmail.com Wed Jun 3 01:09:16 2020 From: ockmrzr at gmail.com (ockmrzr at gmail.com) Date: Tue, 2 Jun 2020 22:09:16 -0700 Subject: [Elecraft] Elecraft Service Message-ID: A few months back I won the ARRL Auction for a KPA1500. It was my understanding this was the one the League used to test for the QST review on the amplifier. It operated flawlessly for a few months, then I did something wrong after doing some work to my Vertical and it stopped putting out full power. After several emails back and forth with Elecraft Service the decision was made to send in only the RF Deck, I did. Because of the COVID, things took a bit longer than normal, but in the end they got it fixed and performed some upgrades. I received it from UPS today, reinstalled it and all is well. What I wasn't expecting however is they warranted all the repairs. I had mentioned in my emails that this was the amp that the ARRL tested, I am the "second owner" and they usually only honor warranties if sent in by the original owner. Thank you Elecraft for the outstanding service, keep up the good work! 73 de Bruce, N7TY Yuma, AZ www.qsl.net/n7ty From dave at nk7z.net Wed Jun 3 07:26:52 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 3 Jun 2020 04:26:52 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <07f601d63955$34409760$9cc1c620$@w2irt.net> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> Message-ID: <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> Hi, Is the open end of that feedline where it connects to the antenna weatherproofed? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/2/20 8:15 PM, Peter Dougherty wrote: > HI all, > > A postscript to the problem. First off, a huge thank you to the many replies received. I was fortunate that the problem was not in the KPA-1500 as I'd originally feared. > > Much troubleshooting within the past few days. Originally the amp was "iffy" on the old M-squared 6m5, and problematic (faulting) during damp or wet weather. This prompted the replacement of both the antenna and feedline. > > The hard faults were still occurring, until it was suggested the Ten-Tec 238 tuner that I was using exclusively for the built-in antenna switch was now the issue. I took this out of line today, and lowered the tower to fine-tune the LFA's feed point and now everything is humming along just nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry conditions. I will keep my fingers crossed that the wet weather expected in the next day or so won't bother it all that much. > > The final step was to move the 6m feedline from the secondary inlet box to the main antenna switch on the big tower. The downside here is I now have an additional 70 feet of BuryFlex in the line, so I'm guessing a total of about 1.5 to 1.7dB of feedline loss. This is something I would like to address in the future with an eye to dropping it below 1dB. > > Screencaps: https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20switch.png?dl=0 > > And > > https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%20tuning.png?dl=0 > > And for the balun discussion, this is what's in place, before the double-walled heat-shrink was applied: https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl=0 > > - pjd > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net > From dave at nk7z.net Wed Jun 3 07:29:37 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 3 Jun 2020 04:29:37 -0700 Subject: [Elecraft] Elecraft Service In-Reply-To: References: Message-ID: <28e5fea6-c4c8-8350-4ebf-ec74c6999656@nk7z.net> Hi bruce, It is interesting you mention this, I was just wondering how long the backlog was for repairs due to COVID issues... What was your tuner time from sending it in, to getting it back? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/2/20 10:09 PM, ockmrzr at gmail.com wrote: > A few months back I won the ARRL Auction for a KPA1500. It was my > understanding this was the one the League used to test for the QST review on > the amplifier. > > > > It operated flawlessly for a few months, then I did something wrong after > doing some work to my Vertical and it stopped putting out full power. > > > > After several emails back and forth with Elecraft Service the decision was > made to send in only the RF Deck, I did. Because of the COVID, things took > a bit longer than normal, but in the end they got it fixed and performed > some upgrades. I received it from UPS today, reinstalled it and all is > well. > > > > What I wasn't expecting however is they warranted all the repairs. I had > mentioned in my emails that this was the amp that the ARRL tested, I am the > "second owner" and they usually only honor warranties if sent in by the > original owner. > > > > Thank you Elecraft for the outstanding service, keep up the good work! > > > > 73 de Bruce, N7TY > > Yuma, AZ > > www.qsl.net/n7ty > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net > From rocketnj at gmail.com Wed Jun 3 07:43:18 2020 From: rocketnj at gmail.com (Dave) Date: Wed, 3 Jun 2020 07:43:18 -0400 Subject: [Elecraft] Elecraft Service In-Reply-To: References: Message-ID: <1ACAEFEF-097D-49C5-9270-5C8BCB3A7C35@gmail.com> Outstanding service, as usual. Now if ALL companies (not just ham radio) provided this level of service....... Dave wo2x Sent from my iPad > On Jun 3, 2020, at 1:12 AM, ockmrzr at gmail.com wrote: > > ?A few months back I won the ARRL Auction for a KPA1500. It was my > understanding this was the one the League used to test for the QST review on > the amplifier. > > > > It operated flawlessly for a few months, then I did something wrong after > doing some work to my Vertical and it stopped putting out full power. > > > > After several emails back and forth with Elecraft Service the decision was > made to send in only the RF Deck, I did. Because of the COVID, things took > a bit longer than normal, but in the end they got it fixed and performed > some upgrades. I received it from UPS today, reinstalled it and all is > well. > > > > What I wasn't expecting however is they warranted all the repairs. I had > mentioned in my emails that this was the amp that the ARRL tested, I am the > "second owner" and they usually only honor warranties if sent in by the > original owner. > > > > Thank you Elecraft for the outstanding service, keep up the good work! > > > > 73 de Bruce, N7TY > > Yuma, AZ > > www.qsl.net/n7ty > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rocketnj at gmail.com From ockmrzr at gmail.com Wed Jun 3 08:23:34 2020 From: ockmrzr at gmail.com (ockmrzr at gmail.com) Date: Wed, 3 Jun 2020 05:23:34 -0700 Subject: [Elecraft] Elecraft Service In-Reply-To: <28e5fea6-c4c8-8350-4ebf-ec74c6999656@nk7z.net> References: <28e5fea6-c4c8-8350-4ebf-ec74c6999656@nk7z.net> Message-ID: Time Line as follows: Initial email contact: 4/17 Received an RSA: 4/22 Shipped to Elecraft: 4/23 Received at Elecraft: 4/27 Shipped from Elecraft: 5/26 Received at N7TY QTH: 6/2 It took them a month to perform the necessary repairs and upgrades, not bad considering. Also, the Amp was receive at UPS Yuma on 5/30, however UPS delayed the delivery until 6/2 due to a local backlog. 73 de Bruce, N7TY Yuma, AZ www.qsl.net/n7ty -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Dave Cole Sent: June 3, 2020 04:30 To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Elecraft Service Hi bruce, It is interesting you mention this, I was just wondering how long the backlog was for repairs due to COVID issues... What was your tuner time from sending it in, to getting it back? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/2/20 10:09 PM, ockmrzr at gmail.com wrote: > A few months back I won the ARRL Auction for a KPA1500. It was my > understanding this was the one the League used to test for the QST > review on the amplifier. > > > > It operated flawlessly for a few months, then I did something wrong > after doing some work to my Vertical and it stopped putting out full power. > > > > After several emails back and forth with Elecraft Service the decision > was made to send in only the RF Deck, I did. Because of the COVID, > things took a bit longer than normal, but in the end they got it fixed > and performed some upgrades. I received it from UPS today, > reinstalled it and all is well. > > > > What I wasn't expecting however is they warranted all the repairs. I > had mentioned in my emails that this was the amp that the ARRL tested, > I am the "second owner" and they usually only honor warranties if sent > in by the original owner. > > > > Thank you Elecraft for the outstanding service, keep up the good work! > > > > 73 de Bruce, N7TY > > Yuma, AZ > > www.qsl.net/n7ty > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > dave at nk7z.net > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ockmrzr at gmail.com From ockmrzr at gmail.com Wed Jun 3 08:33:40 2020 From: ockmrzr at gmail.com (ockmrzr at gmail.com) Date: Wed, 3 Jun 2020 05:33:40 -0700 Subject: [Elecraft] K3/P3/KPA1500 Items For Sale Message-ID: I upgraded of my two K-Line's recently and have some left over items. "Let's Make a Deal" 1x - KPA1500-KWD, KPA1500 to Kenwood Radio Interface Cable set 1x - KXV3A K3 Transverter Interface module 4x - KSYN3 K3 Synthesizer module 1x - E850410, P3 Cable 1x - E850339, TMP Cable 2x - E980297, RJ-45 to DE-9S (KIO3B RS232) Cable 2x - E850824, KPA1500 PS Min Load Kit If interested, let me know via direct email, n7ty at arrl.net 73 de Bruce, N7TY Yuma, AZ www.qsl.net/n7ty From dave at nk7z.net Wed Jun 3 10:52:45 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 3 Jun 2020 07:52:45 -0700 Subject: [Elecraft] Elecraft Service In-Reply-To: References: <28e5fea6-c4c8-8350-4ebf-ec74c6999656@nk7z.net> Message-ID: Thanks!!! They are far faster than I expected given the COVID19 mess. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/3/20 5:23 AM, ockmrzr at gmail.com wrote: > Time Line as follows: > > Initial email contact: 4/17 > Received an RSA: 4/22 > Shipped to Elecraft: 4/23 > Received at Elecraft: 4/27 > Shipped from Elecraft: 5/26 > Received at N7TY QTH: 6/2 > > It took them a month to perform the necessary repairs and upgrades, not bad > considering. Also, the Amp was receive at UPS Yuma on 5/30, however UPS > delayed the delivery until 6/2 due to a local backlog. > > 73 de Bruce, N7TY > Yuma, AZ > www.qsl.net/n7ty > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Dave Cole > Sent: June 3, 2020 04:30 > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Elecraft Service > > Hi bruce, > > It is interesting you mention this, I was just wondering how long the > backlog was for repairs due to COVID issues... What was your tuner time > from sending it in, to getting it back? > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 6/2/20 10:09 PM, ockmrzr at gmail.com wrote: >> A few months back I won the ARRL Auction for a KPA1500. It was my >> understanding this was the one the League used to test for the QST >> review on the amplifier. >> >> >> >> It operated flawlessly for a few months, then I did something wrong >> after doing some work to my Vertical and it stopped putting out full > power. >> >> >> >> After several emails back and forth with Elecraft Service the decision >> was made to send in only the RF Deck, I did. Because of the COVID, >> things took a bit longer than normal, but in the end they got it fixed >> and performed some upgrades. I received it from UPS today, >> reinstalled it and all is well. >> >> >> >> What I wasn't expecting however is they warranted all the repairs. I >> had mentioned in my emails that this was the amp that the ARRL tested, >> I am the "second owner" and they usually only honor warranties if sent >> in by the original owner. >> >> >> >> Thank you Elecraft for the outstanding service, keep up the good work! >> >> >> >> 73 de Bruce, N7TY >> >> Yuma, AZ >> >> www.qsl.net/n7ty >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> dave at nk7z.net >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to ockmrzr at gmail.com > From lists at w2irt.net Wed Jun 3 11:35:57 2020 From: lists at w2irt.net (Peter Dougherty) Date: Wed, 3 Jun 2020 11:35:57 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> Message-ID: <081501d639bc$ad766260$08632720$@w2irt.net> No, and I wasn't sure how to accomplish this. It's stainless hardware, but I'm guessing I should probably wrap the feedpoint up in self-annealing tape and Scotch 88 just to be safe. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Dave Cole Sent: Wednesday, June 3, 2020 7:27 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] FIXED--was NOT the feedline Hi, Is the open end of that feedline where it connects to the antenna weatherproofed? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/2/20 8:15 PM, Peter Dougherty wrote: > HI all, > > A postscript to the problem. First off, a huge thank you to the many replies received. I was fortunate that the problem was not in the KPA-1500 as I'd originally feared. > > Much troubleshooting within the past few days. Originally the amp was "iffy" on the old M-squared 6m5, and problematic (faulting) during damp or wet weather. This prompted the replacement of both the antenna and feedline. > > The hard faults were still occurring, until it was suggested the Ten-Tec 238 tuner that I was using exclusively for the built-in antenna switch was now the issue. I took this out of line today, and lowered the tower to fine-tune the LFA's feed point and now everything is humming along just nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry conditions. I will keep my fingers crossed that the wet weather expected in the next day or so won't bother it all that much. > > The final step was to move the 6m feedline from the secondary inlet box to the main antenna switch on the big tower. The downside here is I now have an additional 70 feet of BuryFlex in the line, so I'm guessing a total of about 1.5 to 1.7dB of feedline loss. This is something I would like to address in the future with an eye to dropping it below 1dB. > > Screencaps: > https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20s > witch.png?dl=0 > > And > > https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%2 > 0tuning.png?dl=0 > > And for the balun discussion, this is what's in place, before the > double-walled heat-shrink was applied: > https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl > =0 > > - pjd > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > dave at nk7z.net > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From KY5G at montac.com Wed Jun 3 12:58:02 2020 From: KY5G at montac.com (Clay Autery) Date: Wed, 3 Jun 2020 11:58:02 -0500 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <081501d639bc$ad766260$08632720$@w2irt.net> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> Message-ID: <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> I've got to get to class, but there are a NUMBER of different methods and procedures that are used. Self-fusing tape properly applied covered by top-quality electrical tape to protect the self-fusing tape from UV... There are specific points on installation that you want to observe. Someone will chime in with deatil or a reference to a procedure...? If not, I will do it later... Class in 3 minutes. 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 06/03/20 10:35, Peter Dougherty wrote: > No, and I wasn't sure how to accomplish this. It's stainless hardware, but > I'm guessing I should probably wrap the feedpoint up in self-annealing tape > and Scotch 88 just to be safe. > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Dave Cole > Sent: Wednesday, June 3, 2020 7:27 AM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] FIXED--was NOT the feedline > > Hi, > > Is the open end of that feedline where it connects to the antenna > weatherproofed? > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 6/2/20 8:15 PM, Peter Dougherty wrote: >> HI all, >> >> A postscript to the problem. First off, a huge thank you to the many > replies received. I was fortunate that the problem was not in the KPA-1500 > as I'd originally feared. >> Much troubleshooting within the past few days. Originally the amp was > "iffy" on the old M-squared 6m5, and problematic (faulting) during damp or > wet weather. This prompted the replacement of both the antenna and feedline. >> The hard faults were still occurring, until it was suggested the Ten-Tec > 238 tuner that I was using exclusively for the built-in antenna switch was > now the issue. I took this out of line today, and lowered the tower to > fine-tune the LFA's feed point and now everything is humming along just > nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry > conditions. I will keep my fingers crossed that the wet weather expected in > the next day or so won't bother it all that much. >> The final step was to move the 6m feedline from the secondary inlet box to > the main antenna switch on the big tower. The downside here is I now have an > additional 70 feet of BuryFlex in the line, so I'm guessing a total of about > 1.5 to 1.7dB of feedline loss. This is something I would like to address in > the future with an eye to dropping it below 1dB. >> Screencaps: >> https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20s >> witch.png?dl=0 >> >> And >> >> https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%2 >> 0tuning.png?dl=0 >> >> And for the balun discussion, this is what's in place, before the >> double-walled heat-shrink was applied: >> https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl >> =0 >> >> - pjd >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> dave at nk7z.net >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to lists at w2irt.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ky5g at montac.com From wunder at wunderwood.org Wed Jun 3 13:10:21 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Wed, 3 Jun 2020 10:10:21 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> Message-ID: <6FF6C1EB-D052-4D73-9CB7-50BCED0911F5@wunderwood.org> I use the weatherproofing described here. I think this practice has a long history in telephone wiring. It is a detailed walk-through of what you described. https://static.dxengineering.com/pdf/WeatherProofingCoax-TechTip.pdf wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 3, 2020, at 9:58 AM, Clay Autery wrote: > > I've got to get to class, but there are a NUMBER of different methods and procedures that are used. > > Self-fusing tape properly applied covered by top-quality electrical tape to protect the self-fusing tape from UV... > There are specific points on installation that you want to observe. > > Someone will chime in with deatil or a reference to a procedure... If not, I will do it later... Class in 3 minutes. > > 73, > > ______________________ > Clay Autery, KY5G > (318) 518-1389 > > On 06/03/20 10:35, Peter Dougherty wrote: >> No, and I wasn't sure how to accomplish this. It's stainless hardware, but >> I'm guessing I should probably wrap the feedpoint up in self-annealing tape >> and Scotch 88 just to be safe. >> >> - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On >> Behalf Of Dave Cole >> Sent: Wednesday, June 3, 2020 7:27 AM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] FIXED--was NOT the feedline >> >> Hi, >> >> Is the open end of that feedline where it connects to the antenna >> weatherproofed? >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 6/2/20 8:15 PM, Peter Dougherty wrote: >>> HI all, >>> >>> A postscript to the problem. First off, a huge thank you to the many >> replies received. I was fortunate that the problem was not in the KPA-1500 >> as I'd originally feared. >>> Much troubleshooting within the past few days. Originally the amp was >> "iffy" on the old M-squared 6m5, and problematic (faulting) during damp or >> wet weather. This prompted the replacement of both the antenna and feedline. >>> The hard faults were still occurring, until it was suggested the Ten-Tec >> 238 tuner that I was using exclusively for the built-in antenna switch was >> now the issue. I took this out of line today, and lowered the tower to >> fine-tune the LFA's feed point and now everything is humming along just >> nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry >> conditions. I will keep my fingers crossed that the wet weather expected in >> the next day or so won't bother it all that much. >>> The final step was to move the 6m feedline from the secondary inlet box to >> the main antenna switch on the big tower. The downside here is I now have an >> additional 70 feet of BuryFlex in the line, so I'm guessing a total of about >> 1.5 to 1.7dB of feedline loss. This is something I would like to address in >> the future with an eye to dropping it below 1dB. >>> Screencaps: >>> https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20s >>> witch.png?dl=0 >>> >>> And >>> >>> https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%2 >>> 0tuning.png?dl=0 >>> >>> And for the balun discussion, this is what's in place, before the >>> double-walled heat-shrink was applied: >>> https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl >>> =0 >>> >>> - pjd >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this email >>> list: http://www.qsl.net/donate.html Message delivered to >>> dave at nk7z.net >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html Message >> delivered to lists at w2irt.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ky5g at montac.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From Bob at fctaz.com Wed Jun 3 13:45:00 2020 From: Bob at fctaz.com (Robert A. Hughes) Date: Wed, 3 Jun 2020 10:45:00 -0700 Subject: [Elecraft] P3 SVGA kit Message-ID: <2FA5510E-C15A-4546-A01B-39A8613D4AA4@fctaz.com> Looking for a P3 SVGA kit. If anyone has one for sale, please let me know. Thanks, Bob Hughes W7SNR Cave Creek, AZ From k2asp at kanafi.org Wed Jun 3 14:50:13 2020 From: k2asp at kanafi.org (Phil Kane) Date: Wed, 3 Jun 2020 11:50:13 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <081501d639bc$ad766260$08632720$@w2irt.net> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> Message-ID: <172b1b21-801a-1029-c8cb-2c6f419fd927@kanafi.org> On 6/3/2020 8:35 AM, Peter Dougherty wrote: > No, and I wasn't sure how to accomplish this. It's stainless hardware, but > I'm guessing I should probably wrap the feedpoint up in self-annealing tape > and Scotch 88 just to be safe. Rescue Tape to the rescue. - also available from the Amazing place. Originally developed as a repair tape, it's stretchable, self-sealing, high insulation rated, UV resistant, comes in several colors for easy ID, and no residue when removed. I had several antenna feed points wrapped with it and after 10+ years the connectors underneath were as bright and shiny as they were when first installed. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From radiok4ia at gmail.com Wed Jun 3 15:48:50 2020 From: radiok4ia at gmail.com (Buck) Date: Wed, 3 Jun 2020 15:48:50 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> Message-ID: <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> Electrical tape, then the self-fusing tape, then electrical tape. The first layer of electrical tape makes it easier to removing the fusing tape later Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 6/3/2020 12:58 PM, Clay Autery wrote: > I've got to get to class, but there are a NUMBER of different methods > and procedures that are used. > > Self-fusing tape properly applied covered by top-quality electrical tape > to protect the self-fusing tape from UV... > There are specific points on installation that you want to observe. > > Someone will chime in with deatil or a reference to a procedure...? If > not, I will do it later... Class in 3 minutes. > > 73, > > ______________________ > Clay Autery, KY5G > (318) 518-1389 > > On 06/03/20 10:35, Peter Dougherty wrote: >> No, and I wasn't sure how to accomplish this. It's stainless hardware, >> but >> I'm guessing I should probably wrap the feedpoint up in self-annealing >> tape >> and Scotch 88 just to be safe. >> >> ? - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On >> Behalf Of Dave Cole >> Sent: Wednesday, June 3, 2020 7:27 AM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] FIXED--was NOT the feedline >> >> Hi, >> >> Is the open end of that feedline where it connects to the antenna >> weatherproofed? >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 6/2/20 8:15 PM, Peter Dougherty wrote: >>> HI all, >>> >>> A postscript to the problem. First off, a huge thank you to the many >> replies received. I was fortunate that the problem was not in the >> KPA-1500 >> as I'd originally feared. >>> Much troubleshooting within the past few days. Originally the amp was >> "iffy" on the old M-squared 6m5, and problematic (faulting) during >> damp or >> wet weather. This prompted the replacement of both the antenna and >> feedline. >>> The hard faults were still occurring, until it was suggested the Ten-Tec >> 238 tuner that I was using exclusively for the built-in antenna switch >> was >> now the issue. I took this out of line today, and lowered the tower to >> fine-tune the LFA's feed point and now everything is humming along just >> nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry >> conditions. I will keep my fingers crossed that the wet weather >> expected in >> the next day or so won't bother it all that much. >>> The final step was to move the 6m feedline from the secondary inlet >>> box to >> the main antenna switch on the big tower. The downside here is I now >> have an >> additional 70 feet of BuryFlex in the line, so I'm guessing a total of >> about >> 1.5 to 1.7dB of feedline loss. This is something I would like to >> address in >> the future with an eye to dropping it below 1dB. >>> Screencaps: >>> https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20s >>> witch.png?dl=0 >>> >>> And >>> >>> https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%2 >>> 0tuning.png?dl=0 >>> >>> And for the balun discussion, this is what's in place, before the >>> double-walled heat-shrink was applied: >>> https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl >>> =0 >>> >>> ?? - pjd >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this email >>> list: http://www.qsl.net/donate.html Message delivered to >>> dave at nk7z.net >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message >> delivered to lists at w2irt.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ky5g at montac.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok4ia at gmail.com From nick at n6ol.us Wed Jun 3 15:53:17 2020 From: nick at n6ol.us (Nicklas Johnson) Date: Wed, 3 Jun 2020 12:53:17 -0700 Subject: [Elecraft] ferrites for subwoofer: before or after isolation transformers? In-Reply-To: References: <566d7f4d-78e8-cfe9-6b6c-d868acd643f9@nk7z.net> <73a51800-4ca9-50d7-0806-9b048371b223@nk7z.net> <6cbe383d-1118-b211-5fc8-5946a4d2562f@nk7z.net> Message-ID: Happy to report that the subwoofer problem got about 95% better with the placement of ferrites immediately before the subwoofer on the power cord, the LFE channel and the speaker channels. It still picks up just a tiny bit of 20m racket even with nothing connected to it, which I suspect could be a consequence of the speaker coil picking up the signal and getting rectified in the subwoofer's amplifier. I think it would be difficult to mitigate without more effort than the very small amount of sound is worth. (I'd probably have to disassemble the subwoofer and add a new cable between the amplifier and the speaker that took a bunch of turns through a ferrite ring... something I'm not willing to do yet.) (The question about the isolation transformers came up because the subwoofer must necessarily plug into a different outlet than the receiver due to its placement, and the answer is to add the ferrite as close to the amplifier as possible, on both ends, so necessarily after the isolation transformers, right up against the subwoofer is the place to go.) Adding ferrite to all the speaker wires, the LFE channel, and the power cord at the receiver as Dave (NK7Z) suggested got rid of the small amount of noise that was being picked up on other channels, so I'd call that piece a total success. Because of the way our AV cabinet is arranged, I needed the ferrites to be a little bit closer to the wall than to the receiver, so I gave the wire leading to the receiver several twists on its way for those last few feet. In all cases I was able to get at least 7 turns through the clamps I bought... they were pretty good hefty sizes. Incidentally, Mouser has very good prices and reasonably priced shipping on Fair-Ride material 31 clamp-ons, and it pays to buy in bulk-- 10 costs the same as 7. They also vacuum-seal and bubble-wrap the hell out of it so it arrives intact. Leaving this message so it's searchable by the next person. As always, I appreciate all the help and suggestions from everyone. Nick On Sat, 23 May 2020 at 17:01, Nicklas Johnson wrote: > I certainly agree. And of course there's no "one size fits all" for RFI > problems. I think it's somewhat likely I have multiple problems going on > here too; I noticed, for example, that even when it's completely > disconnected from all its audio inputs, I can still hear a little racket on > the sub; it may need a hefty ferrite on the power cord, or I suppose it's > always possible it's picking up 20m from the speaker coil, then rectifying > that. I won't know until I get some appropriate ferrites delivered to test > out (mid-week). > > Sadly, it seems like most consumer-grade audio equipment is optimized more > for cost than for design quality and RFI suppression, even equipment that's > supposed to be "high-end." And then sometimes you can buy a piece of cheap > gear and it rejects RF better than high-end stuff. Kind of a crap shoot. > > I appreciate all the suggestions and pointers. In the absolute worst > case, I can always play on another band when my better half wants to watch > a movie or play a game, too. > > Nick > > > On Sat, 23 May 2020 at 16:39, Dave Cole wrote: > >> All of Jim's material is like gold for RFI suppression. >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 5/23/20 2:02 PM, Nicklas Johnson wrote: >> > Thanks, Dave. A very good point about the amp picking up stray RF off >> > the cable and returning it as audio; I'll be sure to clamp down on both >> > ends. >> > >> > It's definitely not a new problem, and I've used Jim's recommendations >> > to much success in the past. In fact, I referenced it again today >> > because I couldn't remember which mix of Fair-Rite was the right one. >> > >> > Nick >> > >> > On Sat, 23 May 2020 at 10:58, Dave Cole > > > wrote: >> > >> > I would put the ferrite material as close to the speaker as >> possible, >> > and as close as possible to the amp... >> > >> > It is important you also protect the amp from stray RF. If the >> speaker >> > cable is picking up RF, and feeding it back into the audio amp >> output >> > stage, you can get rectification within that stage in the amp, thus >> > feeding actual audio, (not RF), back down the speaker cable into the >> > speaker(s), and then you start hearing things on the speaker(s). >> > >> > I had a ham friend living 700 or 800 feet from me-- when he lit off >> his >> > KW, I would hear SSB in the speakers, even with the amp off, and >> > unplugged. This was happening via the method above. >> > >> > See Jim's paper on quieting things down: >> > >> > http://www.audiosystemsgroup.com/RFI-Ham.pdf >> > >> > 73, and thanks, >> > Dave (NK7Z) >> > https://www.nk7z.net >> > ARRL Volunteer Examiner >> > ARRL Technical Specialist >> > ARRL Asst. Director, NW Division, Technical Resources >> > >> > On 5/23/20 10:19 AM, Nicklas Johnson wrote: >> > > I've got a set of these on the way, as well as a handful of their >> > next two >> > > smaller siblings, just because I like to have a variety in my >> > desk for >> > > various applications: >> > > >> https://www.fair-rite.com/product/round-cable-snap-its-2631181381/ >> > > >> > > Given the arrangement at the subwoofer of >> wall-connection-->isolation >> > > transformers-->subwoofer, would you put the ferrite right before >> the >> > > subwoofer then? >> > > >> > > I didn't think about adding one at the amp; though I haven't had >> > problems >> > > with any common mode noise getting into the amp from the other >> > speakers in >> > > the room, I can't be sure about the LFE coaxial cable, so that >> > wouldn't >> > > hurt. >> > > >> > > Nick >> > > >> > > >> > > On Sat, 23 May 2020 at 10:08, Dave Cole > > > wrote: >> > > >> > >> Grab some FT-240/31 ferrites from Fair-Rite, (these are the >> large >> > >> rings), and put seven or eight turns of speaker cable through >> each, >> > >> tight wound. Add one at the speaker, and one at the amp. >> > >> >> > >> 73, and thanks, >> > >> Dave (NK7Z) >> > >> https://www.nk7z.net >> > >> ARRL Volunteer Examiner >> > >> ARRL Technical Specialist >> > >> ARRL Asst. Director, NW Division, Technical Resources >> > >> >> > >> On 5/23/20 9:37 AM, Nicklas Johnson wrote: >> > >>> The backstory as briefly as I can make it: I wanted to place my >> > home >> > >>> theater subwoofer in the corner of our living room; doing so >> > required >> > >>> running two speaker wires and a coaxial cable under the house >> and >> > >> plugging >> > >>> the subwoofer into a different outlet than the AV receiver; >> > this in turn >> > >>> resulted in ground-loop hum (because of a tiny difference in >> > potential >> > >>> between the two outlets) which I worked around with a set of >> 1:1 >> > >>> low-frequency audio isolation transformers. The subwoofer is >> > of a type >> > >>> that produces a signal based not only on the LFE channel, but >> > also on the >> > >>> left and right speaker channels, thus the two speaker wires >> > along with >> > >> the >> > >>> coaxial cable. >> > >>> >> > >>> Now the subwoofer is picking up common mode noise on 20m, which >> > isn't >> > >>> terribly surprising, as this happens a good bit with >> consumer-grade >> > >>> electronics. I'm hoping to mitigate this with some substantial >> > ferrite >> > >>> clamps for all three connections and as many turns as I can get >> > through >> > >>> them. >> > >>> >> > >>> My hunch is that the best place in the path to clamp them on >> > will be >> > >>> immediately before the connection to the speaker itself, on the >> > speaker >> > >>> side of the isolation transformer, but I wanted to get the >> > opinions of >> > >>> folks who have solved this problem in the past to see if >> > there's any >> > >> reason >> > >>> the ferrites should come before the isolation transformers. >> > >>> >> > >>> Thoughts? >> > >>> >> > >>> Nick >> > >>> >> > >> ______________________________________________________________ >> > >> Elecraft mailing list >> > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > >> Help: http://mailman.qth.net/mmfaq.htm >> > >> Post: mailto:Elecraft at mailman.qth.net >> > >> > >> >> > >> This list hosted by: http://www.qsl.net >> > >> Please help support this email list: >> http://www.qsl.net/donate.html >> > >> Message delivered to nick at n6ol.us >> > >> >> > > >> > > >> > ______________________________________________________________ >> > Elecraft mailing list >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > Help: http://mailman.qth.net/mmfaq.htm >> > Post: mailto:Elecraft at mailman.qth.net > Elecraft at mailman.qth.net> >> > >> > This list hosted by: http://www.qsl.net >> > Please help support this email list: http://www.qsl.net/donate.html >> > Message delivered to nick at n6ol.us >> > >> > >> > >> > -- >> > *N6OL* >> > Saying something doesn't make it true. Belief in something doesn't >> make >> > it real. And if you have to lie to support a position, that position is >> > not worth supporting. >> > > > -- > *N6OL* > Saying something doesn't make it true. Belief in something doesn't make > it real. And if you have to lie to support a position, that position is not > worth supporting. > -- *N6OL* Saying something doesn't make it true. Belief in something doesn't make it real. And if you have to lie to support a position, that position is not worth supporting. From josh at voodoolab.com Wed Jun 3 16:34:47 2020 From: josh at voodoolab.com (Josh Fiden) Date: Wed, 3 Jun 2020 13:34:47 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> References: <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> Message-ID: <2CB8A8EF-8D5E-4B97-85AF-D33AADF82DBF@voodoolab.com> To make it come off *really* clean, I like to put the 1st layer of vinyl tape sticky side out. Then self-fusing tape, another layer of vinyl tape (3m 33+ or 88). And because overkill is never enough, paint with some Scotchkote last! 73 Josh W6XU Sent from my mobile device >> On Jun 3, 2020, at 12:50 PM, Buck wrote: > ?Electrical tape, then the self-fusing tape, then electrical tape. The first layer of electrical tape makes it easier to removing the fusing tape later From billamader at gmail.com Wed Jun 3 17:38:21 2020 From: billamader at gmail.com (K8TE) Date: Wed, 3 Jun 2020 14:38:21 -0700 (MST) Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: References: <62BEEEBA-E0CC-47AE-AD9D-61EC148AE61F@me.com> Message-ID: <1591220301549-0.post@n2.nabble.com> I am right there with Hank, and probably a lot of others. It's worse when one has an external antenna switch which the KPA1500 can't sense so it's necessary to provide low power from the K3 to avoid a fault because of the different antenna and the tuner can provide the appropriate (already trained) match. Also, switching between ANT1 and ANT2 with different conjugate matches often requires different power levels from the K3 (or other radios). So, for operator "convenience" I find it necessary to set the K3 power level at the lower point to avoid faults. Sadly, there is now way for the KPA1500 to tell the K3 (or K4) what's going on and therefore what to do. I'm attempting to become smarter with an Arduino and, hopefully, figure out how to automate this. It requires a look-up table to determine frequency, antenna, tuning solution, for setting the exciter drive level. So far, I can spell Arduino correctly four out of five times. That is progress! Next, I will plug it in. BTW, if one's antennas demonstrate little to no reactance and a 50 Ohm match, this is not an issue. That only happens in the movies and on TV (Last Man Standing? who needs a K-Line, obviously). 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From k3sv at pa.net Wed Jun 3 18:10:36 2020 From: k3sv at pa.net (Bill Gillenwater) Date: Wed, 3 Jun 2020 18:10:36 -0400 Subject: [Elecraft] Line In/Out Isolation Transformer Message-ID: I want to run sound card audio to the K3. I see that the K3 has isolation transformers built into the Line In and Line Out jacks. My audio cables have an isolation transformer that I built in for use with other radios and applications. Does it hurt to have the audio going through two 1:1 isolators or should I just use a plain audio cable? Thanks, Bill K3SV Sent from my iPad From jackbrindle at me.com Wed Jun 3 18:21:36 2020 From: jackbrindle at me.com (Jack Brindle) Date: Wed, 3 Jun 2020 15:21:36 -0700 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: <1591220301549-0.post@n2.nabble.com> References: <62BEEEBA-E0CC-47AE-AD9D-61EC148AE61F@me.com> <1591220301549-0.post@n2.nabble.com> Message-ID: The K3 has only one way to communicate with the KPA500 and KPA1500, that being Auxbus. There is no communications on this path that allows setting of specific power levels in the K3 - there is only the OP/STBY that simply selects either the K3 high power (STBY) or low power (OPER) modes. You have to set those levels in the K3. Simply put, the communication paths and protocols do not exist for the KPA1500 to set specific power levels in the K3. Now, I am happy to say that there is most likely an upgrade coming that will allow the KAP1500 (but not he KPA500) to communicate with the transceiver to set the power level. Of course, that upgrade is known as the K4. The K4 and KPA1500 should work very well together. It is kind of like the car you drive. You may want the car to have an autonomous feature so that it drives itself, but you will have to buy a new car to do that job. Me? I am saving my money and enjoying driving my old car. The K4 is coming. I am sure you will enjoy it when it gets here! 73! Jack, W6FB > On Jun 3, 2020, at 2:38 PM, K8TE wrote: > > I am right there with Hank, and probably a lot of others. It's worse when > one has an external antenna switch which the KPA1500 can't sense so it's > necessary to provide low power from the K3 to avoid a fault because of the > different antenna and the tuner can provide the appropriate (already > trained) match. Also, switching between ANT1 and ANT2 with different > conjugate matches often requires different power levels from the K3 (or > other radios). > > So, for operator "convenience" I find it necessary to set the K3 power level > at the lower point to avoid faults. Sadly, there is now way for the KPA1500 > to tell the K3 (or K4) what's going on and therefore what to do. I'm > attempting to become smarter with an Arduino and, hopefully, figure out how > to automate this. It requires a look-up table to determine frequency, > antenna, tuning solution, for setting the exciter drive level. So far, I > can spell Arduino correctly four out of five times. That is progress! > Next, I will plug it in. > > BTW, if one's antennas demonstrate little to no reactance and a 50 Ohm > match, this is not an issue. That only happens in the movies and on TV > (Last Man Standing? who needs a K-Line, obviously). > > 73, Bill, K8TE > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From W2xj at w2xj.net Wed Jun 3 18:22:24 2020 From: W2xj at w2xj.net (W2xj) Date: Wed, 3 Jun 2020 18:22:24 -0400 Subject: [Elecraft] Line In/Out Isolation Transformer In-Reply-To: References: Message-ID: <0CF5311A-E985-4A51-8E1A-6D0891E9FFED@w2xj.net> No, it doesn?t hurt. Sent from my iPad > On Jun 3, 2020, at 6:11 PM, Bill Gillenwater wrote: > > ?I want to run sound card audio to the K3. I see that the K3 has isolation transformers built into the Line In and Line Out jacks. My audio cables have an isolation transformer that I built in for use with other radios and applications. Does it hurt to have the audio going through two 1:1 isolators or should I just use a plain audio cable? > > Thanks, > Bill K3SV > > > Sent from my iPad > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net > From lists at w2irt.net Wed Jun 3 18:41:58 2020 From: lists at w2irt.net (Peter Dougherty) Date: Wed, 3 Jun 2020 18:41:58 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <6FF6C1EB-D052-4D73-9CB7-50BCED0911F5@wunderwood.org> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <6FF6C1EB-D052-4D73-9CB7-50BCED0911F5@wunderwood.org> Message-ID: <001701d639f8$311990c0$934cb240$@w2irt.net> For PL-259 or Type-N to female connections outside my standard practice is either double-wall marine grade heat shrink, or Scotch-130 self-annealing tape (probably the same stuff as the 3M 2155) and the marine grade heat shrink. We had a line of storms headed this way after I read your post, and I decided to lower/tilt the tower over, and I wrapped the screw ends of the balun with Scotch 130 and Super 88. Not sure what got into me when I put the antenna up; I guess I figured SS hardware shouldn't be a problem in the elements, but yeah, better safe than sorry. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Walter Underwood Sent: Wednesday, June 3, 2020 1:10 PM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline I use the weatherproofing described here. I think this practice has a long history in telephone wiring. It is a detailed walk-through of what you described. https://static.dxengineering.com/pdf/WeatherProofingCoax-TechTip.pdf wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 3, 2020, at 9:58 AM, Clay Autery wrote: > > I've got to get to class, but there are a NUMBER of different methods and procedures that are used. > > Self-fusing tape properly applied covered by top-quality electrical tape to protect the self-fusing tape from UV... > There are specific points on installation that you want to observe. > > Someone will chime in with deatil or a reference to a procedure... If not, I will do it later... Class in 3 minutes. > > 73, > > ______________________ > Clay Autery, KY5G > (318) 518-1389 > > On 06/03/20 10:35, Peter Dougherty wrote: >> No, and I wasn't sure how to accomplish this. It's stainless >> hardware, but I'm guessing I should probably wrap the feedpoint up in >> self-annealing tape and Scotch 88 just to be safe. >> >> - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of Dave Cole >> Sent: Wednesday, June 3, 2020 7:27 AM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] FIXED--was NOT the feedline >> >> Hi, >> >> Is the open end of that feedline where it connects to the antenna >> weatherproofed? >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 6/2/20 8:15 PM, Peter Dougherty wrote: >>> HI all, >>> >>> A postscript to the problem. First off, a huge thank you to the many >> replies received. I was fortunate that the problem was not in the >> KPA-1500 as I'd originally feared. >>> Much troubleshooting within the past few days. Originally the amp >>> was >> "iffy" on the old M-squared 6m5, and problematic (faulting) during >> damp or wet weather. This prompted the replacement of both the antenna and feedline. >>> The hard faults were still occurring, until it was suggested the >>> Ten-Tec >> 238 tuner that I was using exclusively for the built-in antenna >> switch was now the issue. I took this out of line today, and lowered >> the tower to fine-tune the LFA's feed point and now everything is >> humming along just nicely. The KPA-1500 is happy at 1.5 kW and >> showing an SWR of 1.2 in dry conditions. I will keep my fingers >> crossed that the wet weather expected in the next day or so won't bother it all that much. >>> The final step was to move the 6m feedline from the secondary inlet >>> box to >> the main antenna switch on the big tower. The downside here is I now >> have an additional 70 feet of BuryFlex in the line, so I'm guessing a >> total of about >> 1.5 to 1.7dB of feedline loss. This is something I would like to >> address in the future with an eye to dropping it below 1dB. >>> Screencaps: >>> https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%2 >>> 0s >>> witch.png?dl=0 >>> >>> And >>> >>> https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after >>> %2 >>> 0tuning.png?dl=0 >>> >>> And for the balun discussion, this is what's in place, before the >>> double-walled heat-shrink was applied: >>> https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg? >>> dl >>> =0 >>> >>> - pjd >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email >>> list: http://www.qsl.net/donate.html Message delivered to >>> dave at nk7z.net >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> lists at w2irt.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> ky5g at montac.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > wunder at wunderwood.org ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From rocketnj at gmail.com Wed Jun 3 19:08:51 2020 From: rocketnj at gmail.com (rocketnj at gmail.com) Date: Wed, 3 Jun 2020 19:08:51 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <2CB8A8EF-8D5E-4B97-85AF-D33AADF82DBF@voodoolab.com> References: <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> <2CB8A8EF-8D5E-4B97-85AF-D33AADF82DBF@voodoolab.com> Message-ID: <013e01d639fb$f22c1c80$d6845580$@gmail.com> A layer of friction tape is also a good way to keep the connectors sticky free. Dave wo2x -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Josh Fiden Sent: Wednesday, June 3, 2020 4:35 PM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline To make it come off *really* clean, I like to put the 1st layer of vinyl tape sticky side out. Then self-fusing tape, another layer of vinyl tape (3m 33+ or 88). And because overkill is never enough, paint with some Scotchkote last! 73 Josh W6XU Sent from my mobile device >> On Jun 3, 2020, at 12:50 PM, Buck wrote: > ?Electrical tape, then the self-fusing tape, then electrical tape. > The first layer of electrical tape makes it easier to removing the > fusing tape later ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rocketnj at gmail.com From lists at subich.com Wed Jun 3 19:12:29 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Wed, 3 Jun 2020 19:12:29 -0400 Subject: [Elecraft] Line In/Out Isolation Transformer In-Reply-To: References: Message-ID: > Does it hurt to have the audio going through two 1:1 isolators or > should I just use a plain audio cable? There is a minimum level of distortion in a transformer. I would use simple audio cables and avoid the additional transformer(s) - particularly since the KIO3/KIO3B interfaces use high quality transformers to minimize the distortion. 73, ... Joe, W4TV On 2020-06-03 6:10 PM, Bill Gillenwater wrote: > I want to run sound card audio to the K3. I see that the K3 has isolation transformers built into the Line In and Line Out jacks. My audio cables have an isolation transformer that I built in for use with other radios and applications. Does it hurt to have the audio going through two 1:1 isolators or should I just use a plain audio cable? > > Thanks, > Bill K3SV > > From donovanf at starpower.net Wed Jun 3 19:26:02 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Wed, 3 Jun 2020 19:26:02 -0400 (EDT) Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <013e01d639fb$f22c1c80$d6845580$@gmail.com> Message-ID: <641035330.1238694.1591226762175.JavaMail.root@starpower.net> Dave, Try Josh's technique, you won't regret it. But I never use Scotchkote because UV very quickly destroys it. 73 Frank W3LPL ----- Original Message ----- From: rocketnj at gmail.com To: "Josh Fiden" , "Elecraft Reflector" Sent: Wednesday, June 3, 2020 11:08:51 PM Subject: Re: [Elecraft] FIXED--was NOT the feedline A layer of friction tape is also a good way to keep the connectors sticky free. Dave wo2x -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Josh Fiden Sent: Wednesday, June 3, 2020 4:35 PM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline To make it come off *really* clean, I like to put the 1st layer of vinyl tape sticky side out. Then self-fusing tape, another layer of vinyl tape (3m 33+ or 88). And because overkill is never enough, paint with some Scotchkote last! 73 Josh W6XU Sent from my mobile device >> On Jun 3, 2020, at 12:50 PM, Buck wrote: > Electrical tape, then the self-fusing tape, then electrical tape. > The first layer of electrical tape makes it easier to removing the > fusing tape later ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rocketnj at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From a.durbin at msn.com Wed Jun 3 20:12:34 2020 From: a.durbin at msn.com (Andy Durbin) Date: Thu, 4 Jun 2020 00:12:34 +0000 Subject: [Elecraft] KPA1500 power per frequency bin Message-ID: "The K3 has only one way to communicate with the KPA500 and KPA1500, that being Auxbus. There is no communications on this path that allows setting of specific power levels in the K3 - there is only the OP/STBY that simply selects either the K3 high power (STBY) or low power (OPER) modes. You have to set those levels in the K3. Simply put, the communication paths and protocols do not exist for the KPA1500 to set specific power levels in the K3." I can understand that there is no way for the KPA1500 to command the K3 to a specific power setting based on frequency. However, that is not required for the K3 to set drive power based on current frequency. The K3 knows the current TX frequency. The K3 would have to host an array of bin frequency definitions each with an associated power level (or each with multiple power levels). That's a LOT more data sets than the current "by band" power mapping. It's quite possible the K3 does not have the required spare memory but I don't see that the current interface prevents this being implemented. What am I missing? As has been mentioned - shouldn't be too difficult to do this with an external Arduino based controller. 73, Andy, k3wyc From c-hawley at illinois.edu Wed Jun 3 21:20:09 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Thu, 4 Jun 2020 01:20:09 +0000 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com>, <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> Message-ID: <89A4D5F6-C303-4C2A-82DA-A277AE3FC9F5@illinois.edu> I have used a very thick non migrating silicone vacuum grease on the UHF connectors in the past to waterproof them. I put some on the threads and on the rear of the center section that the barrel pushes against. They have been up at 40 feet in all kinds of weather for 30 years with no problems. I considered tape, etc. but it seemed that if some water got in, it would have difficulty getting out. Better to not provide a container for water. Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Jun 3, 2020, at 2:50 PM, Buck wrote: > > ?Electrical tape, then the self-fusing tape, then electrical tape. The first layer of electrical tape makes it easier to removing the fusing tape later > > Buck, k4ia > Honor Roll > 8BDXCC > EasyWayHamBooks.com > >> On 6/3/2020 12:58 PM, Clay Autery wrote: >> I've got to get to class, but there are a NUMBER of different methods and procedures that are used. >> Self-fusing tape properly applied covered by top-quality electrical tape to protect the self-fusing tape from UV... >> There are specific points on installation that you want to observe. >> Someone will chime in with deatil or a reference to a procedure... If not, I will do it later... Class in 3 minutes. >> 73, >> ______________________ >> Clay Autery, KY5G >> (318) 518-1389 >>> On 06/03/20 10:35, Peter Dougherty wrote: >>> No, and I wasn't sure how to accomplish this. It's stainless hardware, but >>> I'm guessing I should probably wrap the feedpoint up in self-annealing tape >>> and Scotch 88 just to be safe. >>> >>> - pjd >>> >>> -----Original Message----- >>> From: elecraft-bounces at mailman.qth.net On >>> Behalf Of Dave Cole >>> Sent: Wednesday, June 3, 2020 7:27 AM >>> To: elecraft at mailman.qth.net >>> Subject: Re: [Elecraft] FIXED--was NOT the feedline >>> >>> Hi, >>> >>> Is the open end of that feedline where it connects to the antenna >>> weatherproofed? >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>> On 6/2/20 8:15 PM, Peter Dougherty wrote: >>>> HI all, >>>> >>>> A postscript to the problem. First off, a huge thank you to the many >>> replies received. I was fortunate that the problem was not in the KPA-1500 >>> as I'd originally feared. >>>> Much troubleshooting within the past few days. Originally the amp was >>> "iffy" on the old M-squared 6m5, and problematic (faulting) during damp or >>> wet weather. This prompted the replacement of both the antenna and feedline. >>>> The hard faults were still occurring, until it was suggested the Ten-Tec >>> 238 tuner that I was using exclusively for the built-in antenna switch was >>> now the issue. I took this out of line today, and lowered the tower to >>> fine-tune the LFA's feed point and now everything is humming along just >>> nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry >>> conditions. I will keep my fingers crossed that the wet weather expected in >>> the next day or so won't bother it all that much. >>>> The final step was to move the 6m feedline from the secondary inlet box to >>> the main antenna switch on the big tower. The downside here is I now have an >>> additional 70 feet of BuryFlex in the line, so I'm guessing a total of about >>> 1.5 to 1.7dB of feedline loss. This is something I would like to address in >>> the future with an eye to dropping it below 1dB. >>>> Screencaps: >>>> https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20s >>>> witch.png?dl=0 >>>> >>>> And >>>> >>>> https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%2 >>>> 0tuning.png?dl=0 >>>> >>>> And for the balun discussion, this is what's in place, before the >>>> double-walled heat-shrink was applied: >>>> https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl >>>> =0 >>>> >>>> - pjd >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net Please help support this email >>>> list: http://www.qsl.net/donate.html Message delivered to >>>> dave at nk7z.net >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html Message >>> delivered to lists at w2irt.net >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to ky5g at montac.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to radiok4ia at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From jim at audiosystemsgroup.com Thu Jun 4 00:17:18 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 3 Jun 2020 21:17:18 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> Message-ID: <676b2dd6-29f5-58a9-928d-36ac1c050acc@audiosystemsgroup.com> On 6/3/2020 9:58 AM, Clay Autery wrote: > Self-fusing tape properly applied covered by top-quality electrical tape > to protect the self-fusing tape from UV... This is what I and several friends have been doing for a while, and we think it works well. The self-fusing tape we use is Rescue Tape. The covering tape is Scotch 88. It's also FAR easier than 3M mastic tape to open up if you need to change something. 73, Jim K9YC From jim at audiosystemsgroup.com Thu Jun 4 00:20:22 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 3 Jun 2020 21:20:22 -0700 Subject: [Elecraft] Line In/Out Isolation Transformer In-Reply-To: References: Message-ID: <1c8d9ece-6620-fafc-df41-1dabdae68e39@audiosystemsgroup.com> On 6/3/2020 3:10 PM, Bill Gillenwater wrote: > Does it hurt to have the audio going through two 1:1 isolators or should I just use a plain audio cable? If you've practiced the power and bonding recommended in my tutorial on the topic, you don't need ANY transformers, not even the ones in the K3. http://k9yc.com/GroundingAndAudio.pdf 73, Jim K9YC From jim at audiosystemsgroup.com Thu Jun 4 00:25:24 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 3 Jun 2020 21:25:24 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <641035330.1238694.1591226762175.JavaMail.root@starpower.net> References: <641035330.1238694.1591226762175.JavaMail.root@starpower.net> Message-ID: <9d0d953f-fa8d-c0ee-ca8b-1a14e1a27207@audiosystemsgroup.com> On 6/3/2020 4:26 PM, donovanf at starpower.net wrote: > But I never use Scotchkote > because UV very quickly destroys it. Frank, Do you have experience with Liquid Electrical Tape? We've been using it to seal exposed ends of choke splices for a year or two, not enough to see issues if there are any. Our applications are the dipole centers with chokes and inline chokes as we showed in the 2018 Cookbook. 73, Jim K9YC From donovanf at starpower.net Thu Jun 4 00:52:00 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Thu, 4 Jun 2020 00:52:00 -0400 (EDT) Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <9d0d953f-fa8d-c0ee-ca8b-1a14e1a27207@audiosystemsgroup.com> Message-ID: <1560736166.1310052.1591246320016.JavaMail.root@starpower.net> Hi Jim, I've had good success with liquid electrical tape, but I use it only as a last resort when Scotch 130C and Scotch 33 or 88 can't be used 73 Frank W3LPL ----- Original Message ----- From: "Jim Brown" To: elecraft at mailman.qth.net Sent: Thursday, June 4, 2020 4:25:24 AM Subject: Re: [Elecraft] FIXED--was NOT the feedline On 6/3/2020 4:26 PM, donovanf at starpower.net wrote: > But I never use Scotchkote > because UV very quickly destroys it. Frank, Do you have experience with Liquid Electrical Tape? We've been using it to seal exposed ends of choke splices for a year or two, not enough to see issues if there are any. Our applications are the dipole centers with chokes and inline chokes as we showed in the 2018 Cookbook. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From dave at nk7z.net Thu Jun 4 01:00:16 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 3 Jun 2020 22:00:16 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <172b1b21-801a-1029-c8cb-2c6f419fd927@kanafi.org> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <172b1b21-801a-1029-c8cb-2c6f419fd927@kanafi.org> Message-ID: Use Scotch 130, better than rescue tape. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/3/20 11:50 AM, Phil Kane wrote: > On 6/3/2020 8:35 AM, Peter Dougherty wrote: > >> No, and I wasn't sure how to accomplish this. It's stainless hardware, but >> I'm guessing I should probably wrap the feedpoint up in self-annealing tape >> and Scotch 88 just to be safe. > > Rescue Tape to the rescue. - also available from the > Amazing place. > > Originally developed as a repair tape, it's stretchable, self-sealing, > high insulation rated, UV resistant, comes in several colors for easy > ID, and no residue when removed. I had several antenna feed points > wrapped with it and after 10+ years the connectors underneath were as > bright and shiny as they were when first installed. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net > From dave at nk7z.net Thu Jun 4 01:02:03 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 3 Jun 2020 22:02:03 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> Message-ID: I always use Scotch 130, (self fusing tape), first, then Scotch 88. I cut the tape down the long axis, and it opes up like a peanut, leaving no residue or old tape. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/3/20 12:48 PM, Buck wrote: > Electrical tape, then the self-fusing tape, then electrical tape.? The > first layer of electrical tape makes it easier to removing the fusing > tape later > > Buck, k4ia > Honor Roll > 8BDXCC > EasyWayHamBooks.com > > On 6/3/2020 12:58 PM, Clay Autery wrote: >> I've got to get to class, but there are a NUMBER of different methods >> and procedures that are used. >> >> Self-fusing tape properly applied covered by top-quality electrical >> tape to protect the self-fusing tape from UV... >> There are specific points on installation that you want to observe. >> >> Someone will chime in with deatil or a reference to a procedure...? If >> not, I will do it later... Class in 3 minutes. >> >> 73, >> >> ______________________ >> Clay Autery, KY5G >> (318) 518-1389 >> >> On 06/03/20 10:35, Peter Dougherty wrote: >>> No, and I wasn't sure how to accomplish this. It's stainless >>> hardware, but >>> I'm guessing I should probably wrap the feedpoint up in >>> self-annealing tape >>> and Scotch 88 just to be safe. >>> >>> ? - pjd >>> >>> -----Original Message----- >>> From: elecraft-bounces at mailman.qth.net >>> On >>> Behalf Of Dave Cole >>> Sent: Wednesday, June 3, 2020 7:27 AM >>> To: elecraft at mailman.qth.net >>> Subject: Re: [Elecraft] FIXED--was NOT the feedline >>> >>> Hi, >>> >>> Is the open end of that feedline where it connects to the antenna >>> weatherproofed? >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>> On 6/2/20 8:15 PM, Peter Dougherty wrote: >>>> HI all, >>>> >>>> A postscript to the problem. First off, a huge thank you to the many >>> replies received. I was fortunate that the problem was not in the >>> KPA-1500 >>> as I'd originally feared. >>>> Much troubleshooting within the past few days. Originally the amp was >>> "iffy" on the old M-squared 6m5, and problematic (faulting) during >>> damp or >>> wet weather. This prompted the replacement of both the antenna and >>> feedline. >>>> The hard faults were still occurring, until it was suggested the >>>> Ten-Tec >>> 238 tuner that I was using exclusively for the built-in antenna >>> switch was >>> now the issue. I took this out of line today, and lowered the tower to >>> fine-tune the LFA's feed point and now everything is humming along just >>> nicely. The KPA-1500 is happy at 1.5 kW and showing an SWR of 1.2 in dry >>> conditions. I will keep my fingers crossed that the wet weather >>> expected in >>> the next day or so won't bother it all that much. >>>> The final step was to move the 6m feedline from the secondary inlet >>>> box to >>> the main antenna switch on the big tower. The downside here is I now >>> have an >>> additional 70 feet of BuryFlex in the line, so I'm guessing a total >>> of about >>> 1.5 to 1.7dB of feedline loss. This is something I would like to >>> address in >>> the future with an eye to dropping it below 1dB. >>>> Screencaps: >>>> https://www.dropbox.com/s/1y4vyd17pbgq8ty/6m%20via%20the%20antenna%20s >>>> witch.png?dl=0 >>>> >>>> And >>>> >>>> https://www.dropbox.com/s/5x8n0bum4nwcxqp/6m%20LFA%20-%20SWR%20after%2 >>>> 0tuning.png?dl=0 >>>> >>>> And for the balun discussion, this is what's in place, before the >>>> double-walled heat-shrink was applied: >>>> https://www.dropbox.com/s/18pgthl67rtq3bl/2020-05-31%2017.51.08.jpg?dl >>>> =0 >>>> >>>> ?? - pjd >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net Please help support this email >>>> list: http://www.qsl.net/donate.html Message delivered to >>>> dave at nk7z.net >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message >>> delivered to lists at w2irt.net >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to ky5g at montac.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to radiok4ia at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net From ve7day at telus.net Thu Jun 4 01:06:59 2020 From: ve7day at telus.net (John) Date: Wed, 3 Jun 2020 22:06:59 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <1560736166.1310052.1591246320016.JavaMail.root@starpower.net> References: <1560736166.1310052.1591246320016.JavaMail.root@starpower.net> Message-ID: <87a644b6-da23-61e4-5086-86bc502e6118@telus.net> After taping up the feed point connection on my LFA, I coated it with liquid tape.? Did some maintenance on it 6 years later and the connection was still secure and showed little evidence of UV deterioration. John. On 03/06/2020 9:52 p.m., donovanf at starpower.net wrote: > Hi Jim, > > > I've had good success with liquid electrical tape, but I use it only > as a last resort when Scotch 130C and Scotch 33 or 88 can't > be used > > > 73 > Frank > W3LPL > > ----- Original Message ----- > > From: "Jim Brown" > To: elecraft at mailman.qth.net > Sent: Thursday, June 4, 2020 4:25:24 AM > Subject: Re: [Elecraft] FIXED--was NOT the feedline > > On 6/3/2020 4:26 PM, donovanf at starpower.net wrote: >> But I never use Scotchkote >> because UV very quickly destroys it. > Frank, > > Do you have experience with Liquid Electrical Tape? We've been using it > to seal exposed ends of choke splices for a year or two, not enough to > see issues if there are any. Our applications are the dipole centers > with chokes and inline chokes as we showed in the 2018 Cookbook. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donovanf at starpower.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ve7day at telus.net From n4xy at comcast.net Thu Jun 4 01:31:18 2020 From: n4xy at comcast.net (Ed Tanton) Date: Thu, 04 Jun 2020 01:31:18 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape Message-ID: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> I have always-in this order-done the following to a new ground rod installation: 1) application of an appropriate anticorrosive spray to the ground rod; 2) attach whatever wires; 3) when all is snug, wrap it all with self-fusing rubber tape with at least an inch of overlap at each end of the wrap; 4) wrap all of the fused rubber tape with plastic electrical tape, adding ~ an inch at each end of the wrap; and finally 5) add a comprehensive layer of "liquid electrical tape" to the entire tape assembly. Once this is accomplished, you will have a sealed attachment that will provide an excellent, long-term connection between the ground rod and the wire(s) provided by the the fused tape AND the way the liquid electrical tape will fuse the plastic electrical tape as it dries/cures. I mention all this as a response to the question about the use of liquid tape. I did all this working on the ground rods and radials connected under my HyGain HyTower. Ed Tanton N4XY Marietta, GA Ed Tanton Marietta, GA From neilz at techie.com Thu Jun 4 03:32:43 2020 From: neilz at techie.com (Neil Zampella) Date: Thu, 4 Jun 2020 03:32:43 -0400 Subject: [Elecraft] KPA100 No Longer Available Message-ID: <084bc43b-fc57-4f88-28dc-9fb94b64b781@techie.com> Hi all, I saw that the K2 100w tuner accessory, the KAT100? is no longer available and discontinued.?? I'm guessing its due to the permanent unavailability of a through part.??? I'm wondering if Wayne or Eric could comment on this, and if there's any suitable replacement for that tuner? Neil, KN3ILZ -- This email has been checked for viruses by AVG. https://www.avg.com From kl7uw at acsalaska.net Thu Jun 4 03:35:34 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Wed, 03 Jun 2020 23:35:34 -0800 Subject: [Elecraft] FIXED--was NOT the feedline Message-ID: <202006040735.0547ZZDX023916@mail41c28.carrierzone.com> My two cents worth: Professionally, I used a layer of Scotch-70 self-fusing tape covered by two layers of Scoth-33+ black electric tape. This was on coax cable connectors on small vessels that were in salt-water exposure. Removing 5-years afterward, connectors were still bright,dry, and looking like new. Scotch-70 is expensive (I paid $30 per roll over ten years ago for it). But when you got guys on board a 26-foot boat in the North Pacific with very high seas (like 30-foot) you want their Marine Radio to work. At home, I use heat shrink with two layers of Scotch-33+ fairly reliably. If things are too close to wrap with tape then a layer of Scotch-Kote seals heat shrink, thoroughly. I don't use sticky, messy stuff like Coax Seal. Scotch-70 molds into a seamless covering and slits easily with a razor knife. Some large coax connectors are supplied with heat shrink that has a melted inner "goo" which is very good sealant. I've found removal is not messy so apparently the "goo" cures in some manner. Pretty sure you can buy it at commercial electrical suppliers (but probably in 4-foot chunks which will cost you). I buy my ordinary heat shrink and tywraps (Thomas & Betts) from a local commercial electrical supply house. When temperatures dip to -30F the cheap stuff gets brittle and breaks. That's not when I want to climb a tower. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From k1rdd73 at gmail.com Thu Jun 4 08:05:10 2020 From: k1rdd73 at gmail.com (Doug Daniels) Date: Thu, 4 Jun 2020 08:05:10 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <202006040735.0547ZZDX023916@mail41c28.carrierzone.com> References: <202006040735.0547ZZDX023916@mail41c28.carrierzone.com> Message-ID: Scotch-70 is $17.50 a roll on Amazon - https://www.amazon.com/Scotch-70-Self-Fusing-Silicone-Electrical/dp/B0029Z5RSY On Thu, Jun 4, 2020 at 3:36 AM Edward R Cole wrote: > My two cents worth: > > Professionally, I used a layer of Scotch-70 self-fusing tape covered > by two layers of Scoth-33+ black electric tape. This was on coax > cable connectors on small vessels that were in salt-water > exposure. Removing 5-years afterward, connectors were still > bright,dry, and looking like new. > > Scotch-70 is expensive (I paid $30 per roll over ten years ago for > it). But when you got guys on board a 26-foot boat in the North > Pacific with very high seas (like 30-foot) you want their Marine Radio to > work. > > At home, I use heat shrink with two layers of Scotch-33+ fairly > reliably. If things are too close to wrap with tape then a layer of > Scotch-Kote seals heat shrink, thoroughly. > > I don't use sticky, messy stuff like Coax Seal. Scotch-70 molds into > a seamless covering and slits easily with a razor knife. > > Some large coax connectors are supplied with heat shrink that has a > melted inner "goo" which is very good sealant. I've found removal is > not messy so apparently the "goo" cures in some manner. Pretty sure > you can buy it at commercial electrical suppliers (but probably in > 4-foot chunks which will cost you). I buy my ordinary heat shrink > and tywraps (Thomas & Betts) from a local commercial electrical supply > house. > > When temperatures dip to -30F the cheap stuff gets brittle and > breaks. That's not when I want to climb a tower. > > 73, Ed - KL7UW > http://www.kl7uw.com > Dubus-NA Business mail: > dubususa at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1rdd73 at gmail.com > -- --... ...-- Doug From gibertc at hotmail.com Thu Jun 4 09:59:00 2020 From: gibertc at hotmail.com (Christophe GIBERT) Date: Thu, 4 Jun 2020 13:59:00 +0000 Subject: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. Message-ID: Hi folks, I'm done in the building of my #7855 K2 and his KAT2. I've got a problem on 10 meters. For example I put the VFO on 28 360 Khz and I press down TUNE, to tune. The screen shows a "Low P" message. When I try to transmit on this band, where is no power at all, the S Meter not move at all. (Problem with my antenna connected even with a good 50 ohms dummy load). All is good on the other bands. My K2 is KAT2 and KSB2 equiped. Some idea on where investigate ? -- Chris From ockmrzr at gmail.com Thu Jun 4 10:07:33 2020 From: ockmrzr at gmail.com (ockmrzr at gmail.com) Date: Thu, 4 Jun 2020 07:07:33 -0700 Subject: [Elecraft] K3/P3/KPA1500 Items For Sale Message-ID: <013f01d63a79$7f87d330$7e977990$@gmail.com> I have some Spares for the K3/P3/KPA1500. "Let's Make a Deal" 1x - KPA1500-KWD, KPA1500 to Kenwood Radio Interface Cable set 1x - KXV3A K3 Transverter Interface module 4x - KSYN3 K3 Synthesizer module 2x - E980297, RJ-45 to DE-9S (KIO3B RS232) Cable 1x - E850410, P3 Cable 1x - E850339, TMP Cable If interested, let me know via direct email, n7ty at arrl.net 73 de Bruce, N7TY Yuma, AZ www.qsl.net/n7ty From dave at nk7z.net Thu Jun 4 10:28:51 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 4 Jun 2020 07:28:51 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <202006040735.0547ZZDX023916@mail41c28.carrierzone.com> References: <202006040735.0547ZZDX023916@mail41c28.carrierzone.com> Message-ID: <00f2405c-11c7-6dbd-3733-6c01f0201df8@nk7z.net> Time to put some of my current heatshrink on an old connector and throw it in the freezer, thanks for the tip!!! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/4/20 12:35 AM, Edward R Cole wrote: > My two cents worth: > > Professionally, I used a layer of Scotch-70 self-fusing tape covered by > two layers of Scoth-33+ black electric tape.? This was on coax cable > connectors on small vessels that were in salt-water exposure.? Removing > 5-years afterward, connectors were still bright,dry, and looking like new. > > Scotch-70 is expensive (I paid $30 per roll over ten years ago for it). > But when you got guys on board a 26-foot boat in the North Pacific with > very high seas (like 30-foot) you want their Marine Radio to work. > > At home, I use heat shrink with two layers of Scotch-33+ fairly > reliably.? If things are too close to wrap with tape then a layer of > Scotch-Kote seals heat shrink, thoroughly. > > I don't use sticky, messy stuff like Coax Seal.? Scotch-70 molds into a > seamless covering and slits easily with a razor knife. > > Some large coax connectors are supplied with heat shrink that has a > melted inner "goo" which is very good sealant.? I've found removal is > not messy so apparently the "goo" cures in some manner.? Pretty sure you > can buy it at commercial electrical suppliers (but probably in 4-foot > chunks which will cost you).? I buy my ordinary heat shrink and tywraps > (Thomas & Betts) from a local commercial electrical supply house. > > When temperatures dip to -30F the cheap stuff gets brittle and breaks. > That's not when I want to climb a tower. > > 73, Ed - KL7UW > ? http://www.kl7uw.com > Dubus-NA Business mail: > ? dubususa at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net From dave at nk7z.net Thu Jun 4 10:59:14 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 4 Jun 2020 07:59:14 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <006201d63a7e$b9384010$2ba8c030$@w2irt.net> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> <006201d63a7e$b9384010$2ba8c030$@w2irt.net> Message-ID: I have that same problem, maybe 1 in 10 or 2,0 I slice the cable or my hand... ;) 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/4/20 7:44 AM, Peter Dougherty wrote: > This is my default procedure, but every so often the knife slips when I'm removing it and I end up slicing into the cable jacket itself. Usually no big deal; cut it and pop on a new connector, but if it's on the antenna end it's not so trivial. > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Dave ColeI always use Scotch 130, (self fusing tape), first, then Scotch 88. I cut the tape down the long axis, and it opes up like a peanut, leaving no residue or old tape. > > 73, and thanks, > Dave (NK7Z) > > From lists at w2irt.net Thu Jun 4 11:01:59 2020 From: lists at w2irt.net (Peter Dougherty) Date: Thu, 4 Jun 2020 11:01:59 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <202006040735.0547ZZDX023916@mail41c28.carrierzone.com> References: <202006040735.0547ZZDX023916@mail41c28.carrierzone.com> Message-ID: <006601d63a81$19300d20$4b902760$@w2irt.net> Ed, this is the stuff I use on my outdoor connectors: https://tinyurl.com/y7uqqwsb Marine grade adhesive lined. 3/4" for plain ol' PL259 connections, and 1" for N connectors. And I mis-spoke (mis-typed??) earlier. Had a senior moment when I said Scotch 130 and Scotch 88 was my default. That HAD BEEN my default. My new default from about 3 or 4 years ago is Scotch 130 and this heat shrink if it's in the air, and just the marine grade heat shrink if it's at ground level. I find this combination to be unbeatable. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Edward R Cole Sent: Thursday, June 4, 2020 3:36 AM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline Some large coax connectors are supplied with heat shrink that has a melted inner "goo" which is very good sealant. I've found removal is not messy so apparently the "goo" cures in some manner. Pretty sure you can buy it at commercial electrical suppliers (but probably in 4-foot chunks which will cost you). I buy my ordinary heat shrink and tywraps (Thomas & Betts) from a local commercial electrical supply house. From lists at w2irt.net Thu Jun 4 11:05:07 2020 From: lists at w2irt.net (Peter Dougherty) Date: Thu, 4 Jun 2020 11:05:07 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> <006201d63a7e$b9384010$2ba8c030$@w2irt.net> Message-ID: <006801d63a81$895e5020$9c1af060$@w2irt.net> Never sliced my hand (thankfully), but yeah, I've damaged the cable a few times. See my correction, though; I use the 130 and marine grade heat shrink as my default, not 130 and 88. I *_did_* use 130+88 on the LFA yesterday, which is where this current discussion started. - pjd -----Original Message----- From: Dave Cole Sent: Thursday, June 4, 2020 10:59 AM To: Peter Dougherty ; elecraft at mailman.qth.net Subject: Re: [Elecraft] FIXED--was NOT the feedline I have that same problem, maybe 1 in 10 or 2,0 I slice the cable or my hand... ;) 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/4/20 7:44 AM, Peter Dougherty wrote: > This is my default procedure, but every so often the knife slips when I'm removing it and I end up slicing into the cable jacket itself. Usually no big deal; cut it and pop on a new connector, but if it's on the antenna end it's not so trivial. > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Dave ColeI always use Scotch 130, (self fusing tape), first, then Scotch 88. I cut the tape down the long axis, and it opes up like a peanut, leaving no residue or old tape. > > 73, and thanks, > Dave (NK7Z) > > From lists at w2irt.net Thu Jun 4 10:44:59 2020 From: lists at w2irt.net (Peter Dougherty) Date: Thu, 4 Jun 2020 10:44:59 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> Message-ID: <006201d63a7e$b9384010$2ba8c030$@w2irt.net> This is my default procedure, but every so often the knife slips when I'm removing it and I end up slicing into the cable jacket itself. Usually no big deal; cut it and pop on a new connector, but if it's on the antenna end it's not so trivial. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Dave ColeI always use Scotch 130, (self fusing tape), first, then Scotch 88. I cut the tape down the long axis, and it opes up like a peanut, leaving no residue or old tape. 73, and thanks, Dave (NK7Z) From donwilh at embarqmail.com Thu Jun 4 11:34:58 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 4 Jun 2020 11:34:58 -0400 Subject: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. In-Reply-To: References: Message-ID: <5a1a0260-831f-b1d5-51a4-acbda799f45b@embarqmail.com> Chris, The LoP message indicates that there is not enough power to tune the KAT2. As your first troubleshooting test, unplug the KAT2 (both cables) and try again - connect a dummy load to the lower BNC jack on the base K2. See if you get power output on 10 meters. If not, look carefully at the bandpass filter for 10/12 meters. If the bandpass filter is OK, then you will have to do Transmit Signal Tracing. Build the RF Probe if you have not already done that and turn to the Troubleshooting appendix in the manual. Do the troubleshooting on page 14. Use 10 meters instead of 40 meters, and tell me at which point the RF voltage is significantly (more than 10%) less than the expected voltage. 73, Don W3FPR On 6/4/2020 9:59 AM, Christophe GIBERT wrote: > Hi folks, I'm done in the building of my #7855 K2 and his KAT2. > > I've got a problem on 10 meters. > > For example I put the VFO on 28 360 Khz and I press down TUNE, to tune. > > The screen shows a "Low P" message. When I try to transmit on this band, where is no power at all, the S Meter not move at all. (Problem with my antenna connected even with a good 50 ohms dummy load). All is good on the other bands. > > My K2 is KAT2 and KSB2 equiped. > > Some idea on where investigate ? From rmcgraw at blomand.net Thu Jun 4 11:47:10 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 4 Jun 2020 10:47:10 -0500 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> <006201d63a7e$b9384010$2ba8c030$@w2irt.net> Message-ID: <955a714c-9068-c949-e486-8761bbdc5194@blomand.net> Weren't you taught not to whittle toward yourself and not to spit into the wind??? Neither works. 73 Bob, K4TAX On 6/4/2020 9:59 AM, Dave Cole wrote: > I have that same problem, maybe 1 in 10 or 2,0 I slice the cable or my > hand... ;) > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 6/4/20 7:44 AM, Peter Dougherty wrote: >> This is my default procedure, but every so often the knife slips when >> I'm removing it and I end up slicing into the cable jacket itself. >> Usually no big deal; cut it and pop on a new connector, but if it's >> on the antenna end it's not so trivial. >> >> ? - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of Dave ColeI always use >> Scotch 130, (self fusing tape), first, then Scotch 88.? I cut the >> tape down the long axis, and it opes up like a peanut, leaving no >> residue or old tape. >> >> 73, and thanks, >> Dave (NK7Z) >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From dave at nk7z.net Thu Jun 4 12:46:37 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 4 Jun 2020 09:46:37 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <955a714c-9068-c949-e486-8761bbdc5194@blomand.net> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> <006201d63a7e$b9384010$2ba8c030$@w2irt.net> <955a714c-9068-c949-e486-8761bbdc5194@blomand.net> Message-ID: Yup.;.. :) 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/4/20 8:47 AM, Bob McGraw K4TAX wrote: > Weren't you taught not to whittle toward yourself and not to spit into > the wind??? Neither works. > > 73 > > Bob, K4TAX > > > On 6/4/2020 9:59 AM, Dave Cole wrote: >> I have that same problem, maybe 1 in 10 or 2,0 I slice the cable or my >> hand... ;) >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 6/4/20 7:44 AM, Peter Dougherty wrote: >>> This is my default procedure, but every so often the knife slips when >>> I'm removing it and I end up slicing into the cable jacket itself. >>> Usually no big deal; cut it and pop on a new connector, but if it's >>> on the antenna end it's not so trivial. >>> >>> ? - pjd >>> >>> -----Original Message----- >>> From: elecraft-bounces at mailman.qth.net >>> On Behalf Of Dave ColeI always use >>> Scotch 130, (self fusing tape), first, then Scotch 88.? I cut the >>> tape down the long axis, and it opes up like a peanut, leaving no >>> residue or old tape. >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net From c-hawley at illinois.edu Thu Jun 4 15:19:51 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Thu, 4 Jun 2020 19:19:51 +0000 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: References: <62BEEEBA-E0CC-47AE-AD9D-61EC148AE61F@me.com> <1591220301549-0.post@n2.nabble.com>, Message-ID: So...is it possible that the KPA500 could ever be upgraded or be a KPA500A to be as capable as the KPA1500? I am not comfortable with having a 1500 watt amplifier and probably would have to suffer all that noise and bother just to run a couple or few hundred watts. That is what I love about the KPA500, compact and super quiet. Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Jun 3, 2020, at 5:22 PM, Jack Brindle via Elecraft wrote: > > ?The K3 has only one way to communicate with the KPA500 and KPA1500, that being Auxbus. There is no communications on this path that allows setting of specific power levels in the K3 - there is only the OP/STBY that simply selects either the K3 high power (STBY) or low power (OPER) modes. You have to set those levels in the K3. Simply put, the communication paths and protocols do not exist for the KPA1500 to set specific power levels in the K3. > > Now, I am happy to say that there is most likely an upgrade coming that will allow the KAP1500 (but not he KPA500) to communicate with the transceiver to set the power level. Of course, that upgrade is known as the K4. > The K4 and KPA1500 should work very well together. > > It is kind of like the car you drive. You may want the car to have an autonomous feature so that it drives itself, but you will have to buy a new car to do that job. Me? I am saving my money and enjoying driving my old car. > > The K4 is coming. I am sure you will enjoy it when it gets here! > > 73! > Jack, W6FB > > > >> On Jun 3, 2020, at 2:38 PM, K8TE wrote: >> >> I am right there with Hank, and probably a lot of others. It's worse when >> one has an external antenna switch which the KPA1500 can't sense so it's >> necessary to provide low power from the K3 to avoid a fault because of the >> different antenna and the tuner can provide the appropriate (already >> trained) match. Also, switching between ANT1 and ANT2 with different >> conjugate matches often requires different power levels from the K3 (or >> other radios). >> >> So, for operator "convenience" I find it necessary to set the K3 power level >> at the lower point to avoid faults. Sadly, there is now way for the KPA1500 >> to tell the K3 (or K4) what's going on and therefore what to do. I'm >> attempting to become smarter with an Arduino and, hopefully, figure out how >> to automate this. It requires a look-up table to determine frequency, >> antenna, tuning solution, for setting the exciter drive level. So far, I >> can spell Arduino correctly four out of five times. That is progress! >> Next, I will plug it in. >> >> BTW, if one's antennas demonstrate little to no reactance and a 50 Ohm >> match, this is not an issue. That only happens in the movies and on TV >> (Last Man Standing? who needs a K-Line, obviously). >> >> 73, Bill, K8TE >> >> >> >> -- >> Sent from: http://elecraft.365791.n2.nabble.com/ >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jackbrindle at me.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From KY5G at montac.com Thu Jun 4 15:27:49 2020 From: KY5G at montac.com (Clay Autery) Date: Thu, 4 Jun 2020 14:27:49 -0500 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> <006201d63a7e$b9384010$2ba8c030$@w2irt.net> Message-ID: <54c7652a-60bb-ed60-3a70-3221d6caad27@montac.com> I NEVER use a knife to remove connector protection. For decades I have used single-edged razor blades.... ONE-time use on stuff like connectors.? I keep a box of 100 in the garage, my office, my networking box, my radio box, et al. Pull out a new one to slit the cover and then wrap in a paper towel and dispose of properly. 99% of the time if I "slip" and cut something I don't want to cut is because the blade wasn't sharp enough for the job....? AKA: applying too much force trying to push a dull edge through a material. These days, I also carry an OLFA H-1 heavy duty retractable razor knife with big thick snappable section blades.? I use this in the construction/renovation stuff where I want a handle for the blade. But I STILL use SE razor blades without a handle for detail work. 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 06/04/20 09:59, Dave Cole wrote: > I have that same problem, maybe 1 in 10 or 2,0 I slice the cable or my > hand... ;) > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 6/4/20 7:44 AM, Peter Dougherty wrote: >> This is my default procedure, but every so often the knife slips when >> I'm removing it and I end up slicing into the cable jacket itself. >> Usually no big deal; cut it and pop on a new connector, but if it's >> on the antenna end it's not so trivial. >> >> ? - pjd >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of Dave ColeI always use >> Scotch 130, (self fusing tape), first, then Scotch 88.? I cut the >> tape down the long axis, and it opes up like a peanut, leaving no >> residue or old tape. >> >> 73, and thanks, >> Dave (NK7Z) >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ky5g at montac.com From josh at voodoolab.com Thu Jun 4 15:36:31 2020 From: josh at voodoolab.com (Josh Fiden) Date: Thu, 4 Jun 2020 12:36:31 -0700 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: References: Message-ID: <859B3D6D-8E93-4064-AD88-7BD3E269D75D@voodoolab.com> What feature(s) of KPA1500 would you want in KPA500? Sincere question. I?m not familiar with the differences other than hardware. Built in tuner, separate light weight switching PS, legal limit power. With my antennas I don?t see a big enough power difference across the band with KPA500. Power could vary by 20% (it doesn?t) and its still <1dB, not a big deal on HF. 450-550W the amp doesn?t care. With my big amp it?s a problem when I want to set for 1.5kW then QSY and it?s 1.6+kW... not good. 73 Josh W6XU Sent from my mobile device > On Jun 4, 2020, at 12:20 PM, hawley, charles j jr wrote: > > ?So...is it possible that the KPA500 could ever be upgraded or be a KPA500A to be as capable as the KPA1500? > From c-hawley at illinois.edu Thu Jun 4 15:51:00 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Thu, 4 Jun 2020 19:51:00 +0000 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: <859B3D6D-8E93-4064-AD88-7BD3E269D75D@voodoolab.com> References: , <859B3D6D-8E93-4064-AD88-7BD3E269D75D@voodoolab.com> Message-ID: <5A4007CB-D646-4926-AD17-A908793294C1@illinois.edu> I don?t know, I just read that there are capabilities in the 1500 that the 500 may not have. Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Jun 4, 2020, at 2:36 PM, Josh Fiden wrote: > > ?What feature(s) of KPA1500 would you want in KPA500? Sincere question. I?m not familiar with the differences other than hardware. Built in tuner, separate light weight switching PS, legal limit power. > > With my antennas I don?t see a big enough power difference across the band with KPA500. Power could vary by 20% (it doesn?t) and its still <1dB, not a big deal on HF. 450-550W the amp doesn?t care. With my big amp it?s a problem when I want to set for 1.5kW then QSY and it?s 1.6+kW... not good. > > 73 > Josh W6XU > > Sent from my mobile device > >> On Jun 4, 2020, at 12:20 PM, hawley, charles j jr wrote: >> >> ?So...is it possible that the KPA500 could ever be upgraded or be a KPA500A to be as capable as the KPA1500? >> > From k2qmf at juno.com Thu Jun 4 16:30:24 2020 From: k2qmf at juno.com (Salvatore Ted K2QMF) Date: Thu, 04 Jun 2020 16:30:24 -0400 Subject: [Elecraft] KPA1500 Question Message-ID: Hello All, Does anyone have a clear picture of the KPA1500 "PA Input Board"????Or a schematic?? Many Thanks in advance for any info... 73, Sal? K2QMF ____________________________________________________________ Sponsored by https://www.newser.com/?utm_source=part&utm_medium=uol&utm_campaign=rss_taglines_more YouTuber Charged After Looting at Mall http://thirdpartyoffers.juno.com/TGL3141/5ed959e1e2a2a59e12691st03duc1 GOP's Murkowski: This Criticism of Trump Is 'Overdue' http://thirdpartyoffers.juno.com/TGL3141/5ed959e291f559e12691st03duc2 North Korea Taunts US Over Protests http://thirdpartyoffers.juno.com/TGL3141/5ed959e2244f959e12691st03duc3 From jim at audiosystemsgroup.com Thu Jun 4 16:43:47 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 4 Jun 2020 13:43:47 -0700 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: <859B3D6D-8E93-4064-AD88-7BD3E269D75D@voodoolab.com> References: <859B3D6D-8E93-4064-AD88-7BD3E269D75D@voodoolab.com> Message-ID: On 6/4/2020 12:36 PM, Josh Fiden wrote: > What feature(s) of KPA1500 would you want in KPA500? Sincere question. I?m not familiar with the differences other than hardware. Built in tuner, separate light weight switching PS, legal limit power. The fan noise in the KPA500 is less awful than in the KPA1500, which are TERRIBLY LOUD when running high duty cycle, like WSJY-X modes and RTTY when you're running and have worked out the band. The KPA500 is intended to work with the very nice KAT500 tuner. The KPA1500 comes with a built-in tuner, also excellent. 73, Jim K9YC From k5rhd.73 at gmail.com Thu Jun 4 16:54:02 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Thu, 4 Jun 2020 14:54:02 -0600 Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails In-Reply-To: References: Message-ID: Hello again, I sent this message a few days ago but did not get a single response. I have emailed Elecraft support but due to COVID-19, I am not sure when I will get a response from them. So here is my message again: Anyone? I still have not been able to figure this out. 73 K5RHD /randy > On Jun 2, 2020, at 4:42 PM, Randy Diddel wrote: > > Hi all, > > I am trying to do the RF Calibration test using my new XG3. I am getting the error below. I have all firmware up to date on the K3s and the XG3. I even tried reloading the firmware on the K3s just to see if that worked. Of course turning it off and back on again did nothing either. I DO have the SUB RX on this rig as well, ideas? > > TIA and 73, > > K5RHD > /Randy > > > Elecraft K3 Utility for OS X Revision 1.18.6.28 > OS X Version 10.15.4 > K3 MCU revision 05.67. RS-232 speed 38400 bps. > Turning sub receiver off > Unlinking VFOs > Selecting Antenna 1 > Setting mode to CW > Turning squelch off > Turning Preamplifier off > Turning Attenuator off > Setting Filter Width to 100 Hertz > Setting RF Gain to maximum > Turning CW Tune on > Writing factory default calibration data > Writing calibration table to DSP > Delay 100 ms > K3 did not respond to DSP command !bc20007401350137023802390139033C033A023C033B033D043E053E063D063C083F093C0C3C0D3E0E3D103F0F3C0F400E3F0F3F103E143F1A401F41223F273F2D41333F3E404A4150403B3F113E0244013E003F0041003F003F0140004000400141033D064313412041243F18400B410742033C0442014100EE007451236D5338; > Power cycle K3 and try calibration again. > > > From dflem at yahoo.com Thu Jun 4 17:23:25 2020 From: dflem at yahoo.com (David Fleming) Date: Thu, 4 Jun 2020 21:23:25 +0000 (UTC) Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails In-Reply-To: References: Message-ID: <1453178373.2022689.1591305805264@mail.yahoo.com> Hi Randy, You are using an older revision of the K3?Utility.?The first thing I would try would be to download the most?current?revision of the Utility?(1.19.9.6)?and see if that solves the problem.?If this?doesn?t help, I would suspect that your usb/serial link?between your Mac and the K3s?may have?become marginal?resulting in lost data?while sending those rather large dsp commands?to the?K3s. The solution may be as simple as trying a different?usb cable.?David, W4SMT On Tuesday, June 2, 2020, 6:51 PM, Randy Diddel wrote: Hi all, I am trying to do the RF Calibration test using my new XG3.? I am getting the error below.? I have all firmware up to date on the K3s and the XG3. I even tried reloading the firmware on the K3s just to see if that worked. Of course turning it off and back on again did nothing either.? I DO have the SUB RX on this rig as well, ideas? TIA and 73, K5RHD /Randy Elecraft K3 Utility for OS X Revision 1.18.6.28 OS X Version 10.15.4 K3 MCU revision 05.67. RS-232 speed 38400 bps. Turning sub receiver off Unlinking VFOs Selecting Antenna 1 Setting mode to CW Turning squelch off Turning Preamplifier off Turning Attenuator off Setting Filter Width to 100 Hertz Setting RF Gain to maximum Turning CW Tune on Writing factory default calibration data Writing calibration table to DSP Delay 100 ms K3 did not respond to DSP command !bc20007401350137023802390139033C033A023C033B033D043E053E063D063C083F093C0C3C0D3E0E3D103F0F3C0F400E3F0F3F103E143F1A401F41223F273F2D41333F3E404A4150403B3F113E0244013E003F0041003F003F0140004000400141033D064313412041243F18400B410742033C0442014100EE007451236D5338; Power cycle K3 and try calibration again. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to dflem at yahoo.com From k5rhd.73 at gmail.com Thu Jun 4 17:25:57 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Thu, 4 Jun 2020 15:25:57 -0600 Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails In-Reply-To: <1453178373.2022689.1591305805264@mail.yahoo.com> References: <1453178373.2022689.1591305805264@mail.yahoo.com> Message-ID: <6E3AADA7-9789-4E42-B5A9-A0B01C37B76D@gmail.com> Hi David, I will try a different USB cable although I am using the brand new one that came from Elecraft with the XG3 which arrived a few days ago. I will check the k3 Utility version. Thanks for the response! 73 K5RHD /randy > On Jun 4, 2020, at 3:23 PM, David Fleming wrote: > > Hi Randy, > > You are using an older revision of the K3 Utility. The first thing I would try would be to download the most current revision of the Utility (1.19.9.6) and see if that solves the problem. If this doesn?t help, I would suspect that your usb/serial link between your Mac and the K3s may have become marginal resulting in lost data while sending those rather large dsp commands to the K3s. The solution may be as simple as trying a different usb cable. > > David, W4SMT > > On Tuesday, June 2, 2020, 6:51 PM, Randy Diddel wrote: > Hi all, > > I am trying to do the RF Calibration test using my new XG3. I am getting the error below. I have all firmware up to date on the K3s and the XG3. I even tried reloading the firmware on the K3s just to see if that worked. Of course turning it off and back on again did nothing either. I DO have the SUB RX on this rig as well, ideas? > > TIA and 73, > > K5RHD > /Randy > > > Elecraft K3 Utility for OS X Revision 1.18.6.28 > OS X Version 10.15.4 > K3 MCU revision 05.67. RS-232 speed 38400 bps. > Turning sub receiver off > Unlinking VFOs > Selecting Antenna 1 > Setting mode to CW > Turning squelch off > Turning Preamplifier off > Turning Attenuator off > Setting Filter Width to 100 Hertz > Setting RF Gain to maximum > Turning CW Tune on > Writing factory default calibration data > Writing calibration table to DSP > Delay 100 ms > K3 did not respond to DSP command !bc20007401350137023802390139033C033A023C033B033D043E053E063D063C083F093C0C3C0D3E0E3D103F0F3C0F400E3F0F3F103E143F1A401F41223F273F2D41333F3E404A4150403B3F113E0244013E003F0041003F003F0140004000400141033D064313412041243F18400B410742033C0442014100EE007451236D5338; > Power cycle K3 and try calibration again. > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dflem at yahoo.com From nr4c at widomaker.com Thu Jun 4 17:45:46 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 4 Jun 2020 17:45:46 -0400 Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails In-Reply-To: References: Message-ID: <57ED8581-A162-4F3C-B490-AFA165ECB471@widomaker.com> Exactly what are you trying to do? The RF GAIN Calibration is done with the transmitter and a ?Dummy? load. No need for the XG3. Look in manual around page 52. Sent from my iPhone ...nr4c. bill > On Jun 4, 2020, at 4:57 PM, Randy Diddel wrote: > > ?Hello again, > > I sent this message a few days ago but did not get a single response. I have emailed Elecraft support but due to COVID-19, I am not sure when I will get a response from them. So here is my message again: > > > Anyone? > > I still have not been able to figure this out. > > 73 > > K5RHD > > /randy > >> On Jun 2, 2020, at 4:42 PM, Randy Diddel wrote: >> >> Hi all, >> >> I am trying to do the RF Calibration test using my new XG3. I am getting the error below. I have all firmware up to date on the K3s and the XG3. I even tried reloading the firmware on the K3s just to see if that worked. Of course turning it off and back on again did nothing either. I DO have the SUB RX on this rig as well, ideas? >> >> TIA and 73, >> >> K5RHD >> /Randy >> >> >> Elecraft K3 Utility for OS X Revision 1.18.6.28 >> OS X Version 10.15.4 >> K3 MCU revision 05.67. RS-232 speed 38400 bps. >> Turning sub receiver off >> Unlinking VFOs >> Selecting Antenna 1 >> Setting mode to CW >> Turning squelch off >> Turning Preamplifier off >> Turning Attenuator off >> Setting Filter Width to 100 Hertz >> Setting RF Gain to maximum >> Turning CW Tune on >> Writing factory default calibration data >> Writing calibration table to DSP >> Delay 100 ms >> K3 did not respond to DSP command !bc20007401350137023802390139033C033A023C033B033D043E053E063D063C083F093C0C3C0D3E0E3D103F0F3C0F400E3F0F3F103E143F1A401F41223F273F2D41333F3E404A4150403B3F113E0244013E003F0041003F003F0140004000400141033D064313412041243F18400B410742033C0442014100EE007451236D5338; >> Power cycle K3 and try calibration again. >> >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From nr4c at widomaker.com Thu Jun 4 17:48:16 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 4 Jun 2020 17:48:16 -0400 Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails In-Reply-To: References: Message-ID: Oh, ?S? Meter Cal Sorry! Sent from my iPhone ...nr4c. bill > On Jun 4, 2020, at 4:57 PM, Randy Diddel wrote: > > ?Hello again, > > I sent this message a few days ago but did not get a single response. I have emailed Elecraft support but due to COVID-19, I am not sure when I will get a response from them. So here is my message again: > > > Anyone? > > I still have not been able to figure this out. > > 73 > > K5RHD > > /randy > >> On Jun 2, 2020, at 4:42 PM, Randy Diddel wrote: >> >> Hi all, >> >> I am trying to do the RF Calibration test using my new XG3. I am getting the error below. I have all firmware up to date on the K3s and the XG3. I even tried reloading the firmware on the K3s just to see if that worked. Of course turning it off and back on again did nothing either. I DO have the SUB RX on this rig as well, ideas? >> >> TIA and 73, >> >> K5RHD >> /Randy >> >> >> Elecraft K3 Utility for OS X Revision 1.18.6.28 >> OS X Version 10.15.4 >> K3 MCU revision 05.67. RS-232 speed 38400 bps. >> Turning sub receiver off >> Unlinking VFOs >> Selecting Antenna 1 >> Setting mode to CW >> Turning squelch off >> Turning Preamplifier off >> Turning Attenuator off >> Setting Filter Width to 100 Hertz >> Setting RF Gain to maximum >> Turning CW Tune on >> Writing factory default calibration data >> Writing calibration table to DSP >> Delay 100 ms >> K3 did not respond to DSP command !bc20007401350137023802390139033C033A023C033B033D043E053E063D063C083F093C0C3C0D3E0E3D103F0F3C0F400E3F0F3F103E143F1A401F41223F273F2D41333F3E404A4150403B3F113E0244013E003F0041003F003F0140004000400141033D064313412041243F18400B410742033C0442014100EE007451236D5338; >> Power cycle K3 and try calibration again. >> >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From k5rhd.73 at gmail.com Thu Jun 4 17:56:58 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Thu, 4 Jun 2020 15:56:58 -0600 Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails In-Reply-To: <57ED8581-A162-4F3C-B490-AFA165ECB471@widomaker.com> References: <57ED8581-A162-4F3C-B490-AFA165ECB471@widomaker.com> Message-ID: <53C4AE5D-84D3-4155-BF22-26FDD66F0B9F@gmail.com> Sorry, Typo, I am trying to do the RX (not RF) calibration. My bad. I tried a different USB cable and my K3s Utility was out of date so I updated that but there was no change. Still have the same error. /randy > On Jun 4, 2020, at 3:45 PM, Nr4c wrote: > > Exactly what are you trying to do? > > The RF GAIN Calibration is done with the transmitter and a ?Dummy? load. No need for the XG3. Look in manual around page 52. > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 4, 2020, at 4:57 PM, Randy Diddel wrote: >> >> ?Hello again, >> >> I sent this message a few days ago but did not get a single response. I have emailed Elecraft support but due to COVID-19, I am not sure when I will get a response from them. So here is my message again: >> >> >> Anyone? >> >> I still have not been able to figure this out. >> >> 73 >> >> K5RHD >> >> /randy >> >>> On Jun 2, 2020, at 4:42 PM, Randy Diddel wrote: >>> >>> Hi all, >>> >>> I am trying to do the RF Calibration test using my new XG3. I am getting the error below. I have all firmware up to date on the K3s and the XG3. I even tried reloading the firmware on the K3s just to see if that worked. Of course turning it off and back on again did nothing either. I DO have the SUB RX on this rig as well, ideas? >>> >>> TIA and 73, >>> >>> K5RHD >>> /Randy >>> >>> >>> Elecraft K3 Utility for OS X Revision 1.18.6.28 >>> OS X Version 10.15.4 >>> K3 MCU revision 05.67. RS-232 speed 38400 bps. >>> Turning sub receiver off >>> Unlinking VFOs >>> Selecting Antenna 1 >>> Setting mode to CW >>> Turning squelch off >>> Turning Preamplifier off >>> Turning Attenuator off >>> Setting Filter Width to 100 Hertz >>> Setting RF Gain to maximum >>> Turning CW Tune on >>> Writing factory default calibration data >>> Writing calibration table to DSP >>> Delay 100 ms >>> K3 did not respond to DSP command !bc20007401350137023802390139033C033A023C033B033D043E053E063D063C083F093C0C3C0D3E0E3D103F0F3C0F400E3F0F3F103E143F1A401F41223F273F2D41333F3E404A4150403B3F113E0244013E003F0041003F003F0140004000400141033D064313412041243F18400B410742033C0442014100EE007451236D5338; >>> Power cycle K3 and try calibration again. >>> >>> >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com From k5rhd.73 at gmail.com Thu Jun 4 19:17:45 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Thu, 4 Jun 2020 17:17:45 -0600 Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails In-Reply-To: <53C4AE5D-84D3-4155-BF22-26FDD66F0B9F@gmail.com> References: <57ED8581-A162-4F3C-B490-AFA165ECB471@widomaker.com> <53C4AE5D-84D3-4155-BF22-26FDD66F0B9F@gmail.com> Message-ID: <1B255B9C-232F-4B2E-8A02-D288C8CAB5C9@gmail.com> Hi, Bah! Someone got me confused. I WAS trying to do the RF Gain (not RX or TX). Anyway. There is a bug with the Mac version of the K3 Utility. I dusted of my old POS Windows laptop, fired it up, updated the K3 Utility and waited the hour+ it needed to update Windows 10. I was able to perform calibration just fine. I would be willing to work with the Utility devs from Elecraft to try and troubleshoot the Mac client issue if someone happens to be on this list and reads this. I would prefer to use a Mac for 100% of my Ham needs. 73 K5RHD /randy > On Jun 4, 2020, at 3:56 PM, Randy Diddel wrote: > > Sorry, > > Typo, I am trying to do the RX (not RF) calibration. > > My bad. I tried a different USB cable and my K3s Utility was out of date so I updated that but there was no change. Still have the same error. > > /randy > >> On Jun 4, 2020, at 3:45 PM, Nr4c wrote: >> >> Exactly what are you trying to do? >> >> The RF GAIN Calibration is done with the transmitter and a ?Dummy? load. No need for the XG3. Look in manual around page 52. >> >> Sent from my iPhone >> ...nr4c. bill >> >> >>> On Jun 4, 2020, at 4:57 PM, Randy Diddel wrote: >>> >>> ?Hello again, >>> >>> I sent this message a few days ago but did not get a single response. I have emailed Elecraft support but due to COVID-19, I am not sure when I will get a response from them. So here is my message again: >>> >>> >>> Anyone? >>> >>> I still have not been able to figure this out. >>> >>> 73 >>> >>> K5RHD >>> >>> /randy >>> >>>> On Jun 2, 2020, at 4:42 PM, Randy Diddel wrote: >>>> >>>> Hi all, >>>> >>>> I am trying to do the RF Calibration test using my new XG3. I am getting the error below. I have all firmware up to date on the K3s and the XG3. I even tried reloading the firmware on the K3s just to see if that worked. Of course turning it off and back on again did nothing either. I DO have the SUB RX on this rig as well, ideas? >>>> >>>> TIA and 73, >>>> >>>> K5RHD >>>> /Randy >>>> >>>> >>>> Elecraft K3 Utility for OS X Revision 1.18.6.28 >>>> OS X Version 10.15.4 >>>> K3 MCU revision 05.67. RS-232 speed 38400 bps. >>>> Turning sub receiver off >>>> Unlinking VFOs >>>> Selecting Antenna 1 >>>> Setting mode to CW >>>> Turning squelch off >>>> Turning Preamplifier off >>>> Turning Attenuator off >>>> Setting Filter Width to 100 Hertz >>>> Setting RF Gain to maximum >>>> Turning CW Tune on >>>> Writing factory default calibration data >>>> Writing calibration table to DSP >>>> Delay 100 ms >>>> K3 did not respond to DSP command !bc20007401350137023802390139033C033A023C033B033D043E053E063D063C083F093C0C3C0D3E0E3D103F0F3C0F400E3F0F3F103E143F1A401F41223F273F2D41333F3E404A4150403B3F113E0244013E003F0041003F003F0140004000400141033D064313412041243F18400B410742033C0442014100EE007451236D5338; >>>> Power cycle K3 and try calibration again. >>>> >>>> >>>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to nr4c at widomaker.com > From richgilley123 at gmail.com Thu Jun 4 19:49:22 2020 From: richgilley123 at gmail.com (richard gilley) Date: Thu, 4 Jun 2020 19:49:22 -0400 Subject: [Elecraft] KX3/PX3/KXPA100 for sale Message-ID: HI, I have a KX3 and PX3 with a KXPA100 available as a complete set up. Purchased September 2018. All interconnect cables, manuals, and two F. Cady publications. I am a CW op only, set up in shack only, never traveled. For photos, details please contact me at "richgilley123 at gmail.com ." I am asking $2500.00, includes shipping USPS, CONUS. Bank check preferred. Thank you for your attention. R Gilley AD1G From rocketnj at gmail.com Thu Jun 4 19:58:16 2020 From: rocketnj at gmail.com (rocketnj at gmail.com) Date: Thu, 4 Jun 2020 19:58:16 -0400 Subject: [Elecraft] KPA1500 fan mod done - MUCH better Message-ID: <019501d63acc$043aa560$0caff020$@gmail.com> Hi All, Received the new LED board for my KPA1500 power supply. Easy to swap out, six plugs and two screws. You can move one plug at a time to the new board so there is no chance of screwing anything up. To put the screws back in I suggest a Phillips screwdriver with magnetic tip. It took more time to remove the 16 screws from the top cover than to swap the board. THANK YOU Elecraft! 73 Dave wo2x From wes_n7ws at triconet.org Thu Jun 4 20:27:06 2020 From: wes_n7ws at triconet.org (Wes) Date: Thu, 4 Jun 2020 17:27:06 -0700 Subject: [Elecraft] Trying RF Gain Calibration with XG3 but fails In-Reply-To: References: Message-ID: No, RF Gain calibration. On 6/4/2020 2:48 PM, Nr4c wrote: > Oh, ?S? Meter Cal > > Sorry! > > Sent from my iPhone > ...nr4c. bill From ockmrzr at gmail.com Thu Jun 4 20:40:51 2020 From: ockmrzr at gmail.com (ockmrzr at gmail.com) Date: Thu, 4 Jun 2020 17:40:51 -0700 Subject: [Elecraft] K3 Items For Sale Message-ID: <1e8901d63ad1$f8470c70$e8d52550$@gmail.com> I have some spares for the K3 available after recent upgrades. "Let's Make a Deal" 1x - KXV3A K3 Transverter Interface module 4x - KSYN3 K3 Synthesizer module If interested, let me know via direct email, n7ty at arrl.net 73 de Bruce, N7TY Yuma, AZ www.qsl.net/n7ty From neilz at techie.com Thu Jun 4 22:35:14 2020 From: neilz at techie.com (Neil Zampella) Date: Thu, 4 Jun 2020 22:35:14 -0400 Subject: [Elecraft] KAT100 No Longer Available, was KPA100 No Longer Available In-Reply-To: <084bc43b-fc57-4f88-28dc-9fb94b64b781@techie.com> References: <084bc43b-fc57-4f88-28dc-9fb94b64b781@techie.com> Message-ID: <2da1d417-9226-31e3-ef96-e9ba9ad2043d@techie.com> Sorry for the confusion ... wasn't thinking when I typed out the subject line.? Thinking KAT100 typed KPA100, then sent it? :( Neil, KN3ILZ On 6/4/2020 3:32 AM, Neil Zampella wrote: > Hi all, > > I saw that the K2 100w tuner accessory, the KAT100? is no longer > available and discontinued.?? I'm guessing its due to the permanent > unavailability of a through part.??? I'm wondering if Wayne or Eric > could comment on this, and if there's any suitable replacement for that > tuner? > > Neil, KN3ILZ > > > -- > This email has been checked for viruses by AVG. > https://www.avg.com > > From k2asp at kanafi.org Thu Jun 4 22:55:01 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 4 Jun 2020 19:55:01 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <676b2dd6-29f5-58a9-928d-36ac1c050acc@audiosystemsgroup.com> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <676b2dd6-29f5-58a9-928d-36ac1c050acc@audiosystemsgroup.com> Message-ID: <4e569f6c-8ff0-54e0-c6ad-3f308c42ab21@kanafi.org> On 6/3/2020 9:17 PM, Jim Brown wrote: > It's also FAR easier than 3M mastic tape to open up if you need to > change something. That's what they make X-acto knives for. I never reuse "taken off" tape. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From k2asp at kanafi.org Thu Jun 4 23:05:59 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 4 Jun 2020 20:05:59 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> <006201d63a7e$b9384010$2ba8c030$@w2irt.net> Message-ID: <7eb63b9a-96b0-8c24-cf00-73b02e94ca45@kanafi.org> On 6/4/2020 7:59 AM, Dave Cole wrote: > I have that same problem, maybe 1 in 10 or 2,0 I slice the cable or my > hand... ;) I have to introduce you to my cousin the eye surgeon who can teach you to avoid things like that! :) One of the stunts that he does to show off is to peel the red skin off an apple and leave the green under-skin intact. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From k2asp at kanafi.org Thu Jun 4 23:12:46 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 4 Jun 2020 20:12:46 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> Message-ID: <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> On 6/3/2020 10:31 PM, Ed Tanton wrote: > I mention all this as a response to the question about the use of liquid > tape. > I did all this working on the ground rods and radials connected under my > HyGain HyTower. What do you use to attach the ground wire(s) to the ground rod? Buckeyes? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From w4ien at comcast.net Thu Jun 4 23:22:57 2020 From: w4ien at comcast.net (ROBIN J KIDD) Date: Thu, 4 Jun 2020 23:22:57 -0400 (EDT) Subject: [Elecraft] WTB: K2 Message-ID: <1291990227.286621.1591327378046@connect.xfinity.com> From n4xy at comcast.net Thu Jun 4 23:50:50 2020 From: n4xy at comcast.net (Ed Tanton) Date: Thu, 04 Jun 2020 23:50:50 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> Message-ID: <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> I should have mentioned that. I strip 5 or 6 inches of insulation. That was why I cleaned the top of the ground rod and sprayed it with electrical lubricant. I used a stainless steel hose clamp to hold the stripped wires against the ground rod at each end of the stripped wire portions. The next part is what I wrote about to start with. Ed Tanton Marietta, GA On 6/3/2020 10:31 PM, Ed Tanton wrote: > I mention all this as a response to the question about the use of liquid > tape. > I did all this working on the ground rods and radials connected under my > HyGain HyTower. What do you use to attach the ground wire(s) to the ground rod? Buckeyes? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n4xy at comcast.net From k6mr at outlook.com Fri Jun 5 00:51:39 2020 From: k6mr at outlook.com (Ken K6MR) Date: Fri, 5 Jun 2020 04:51:39 +0000 Subject: [Elecraft] KPA1500 fan mod done - MUCH better In-Reply-To: <019501d63acc$043aa560$0caff020$@gmail.com> References: <019501d63acc$043aa560$0caff020$@gmail.com> Message-ID: You didn?t happen to notice the value of the changed resistor did you? The fan resistor is the big one. Ken K6MR From: rocketnj at gmail.com Sent: Thursday, June 4, 2020 17:00 To: elecraft at mailman.qth.net Subject: [Elecraft] KPA1500 fan mod done - MUCH better Hi All, Received the new LED board for my KPA1500 power supply. Easy to swap out, six plugs and two screws. You can move one plug at a time to the new board so there is no chance of screwing anything up. To put the screws back in I suggest a Phillips screwdriver with magnetic tip. It took more time to remove the 16 screws from the top cover than to swap the board. THANK YOU Elecraft! 73 Dave wo2x ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k6mr at outlook.com From norrislawfirm2 at gmail.com Fri Jun 5 01:10:12 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Thu, 4 Jun 2020 22:10:12 -0700 Subject: [Elecraft] KPA1500 fan mod done - MUCH better In-Reply-To: <019501d63acc$043aa560$0caff020$@gmail.com> References: <019501d63acc$043aa560$0caff020$@gmail.com> Message-ID: I had completely forgotten that I did this mod, and the two resistors mod. That, and the piece of grit or whatever that was stuck in one of the PSU fans making it scream like a banshee, took the KPA1500 PSU fan noise from being intolerable to unnoticable. Good times! Ain't it grand! 73 Eric WD6DBM On Thu, Jun 4, 2020, 4:59 PM wrote: > Hi All, > > > > Received the new LED board for my KPA1500 power supply. Easy to swap out, > six plugs and two screws. You can move one plug at a time to the new board > so there is no chance of screwing anything up. To put the screws back in I > suggest a Phillips screwdriver with magnetic tip. It took more time to > remove the 16 screws from the top cover than to swap the board. > > > > THANK YOU Elecraft! > > > > 73 > > Dave wo2x > > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to norrislawfirm2 at gmail.com > From rocketnj at gmail.com Fri Jun 5 01:40:50 2020 From: rocketnj at gmail.com (Dave) Date: Fri, 5 Jun 2020 01:40:50 -0400 Subject: [Elecraft] KPA1500 fan mod done - MUCH better In-Reply-To: References: Message-ID: <998E32D5-8A90-4E8B-B96A-854D2B504FEC@gmail.com> Yeah PSU fan noise is on par with the fans in the Flex 6700 now. PC is almost completely silent. Thinking of locating the amp, radio, and 4O3A 2x8 antenna switch in my garage in a half height server cabinet. Then I could hear myself think, but maybe I don?t want to hear myself ;-) The two chip resistor mod on filter board was fun. I have experience with surface mount rework so no big deal. One resistor was the size of ?16? onthe date on a penny (2016). Other mods - they installed zener diodes tonthe gates on the LDMOS devices to protect against overdrive. That is one thing the LDMOS devices do not like. Mybamp uses a pair of NXP 1K50H devices which I feel are more rugged than BLF188 and 189s. I heard early amps used the 188s but no proof of that. Have fun! 73 Dave Sent from my iPad > On Jun 5, 2020, at 1:10 AM, Eric Norris wrote: > > ? > I had completely forgotten that I did this mod, and the two resistors mod. That, and the piece of grit or whatever that was stuck in one of the PSU fans making it scream like a banshee, took the KPA1500 PSU fan noise from being intolerable to unnoticable. > > Good times! Ain't it grand! > > 73 Eric WD6DBM > >> On Thu, Jun 4, 2020, 4:59 PM wrote: >> Hi All, >> >> >> >> Received the new LED board for my KPA1500 power supply. Easy to swap out, >> six plugs and two screws. You can move one plug at a time to the new board >> so there is no chance of screwing anything up. To put the screws back in I >> suggest a Phillips screwdriver with magnetic tip. It took more time to >> remove the 16 screws from the top cover than to swap the board. >> >> >> >> THANK YOU Elecraft! >> >> >> >> 73 >> >> Dave wo2x >> >> >> >> >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to norrislawfirm2 at gmail.com From jim at audiosystemsgroup.com Fri Jun 5 01:52:01 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 4 Jun 2020 22:52:01 -0700 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <4e569f6c-8ff0-54e0-c6ad-3f308c42ab21@kanafi.org> References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <676b2dd6-29f5-58a9-928d-36ac1c050acc@audiosystemsgroup.com> <4e569f6c-8ff0-54e0-c6ad-3f308c42ab21@kanafi.org> Message-ID: On 6/4/2020 7:55 PM, Phil Kane wrote: >> It's also FAR easier than 3M mastic tape to open up if you need to >> change something. > That's what they make X-acto knives for. Right. Of course -- that works with Rescue Tape, but it doesn't work at all with 3M Mastic tapes -- they are a real PITA to remove. > I never reuse "taken off" tape. Of course not. The difference is the time it takes. I unwrap the Scotch 88 outer layer, then slit along the length of cable and the Rescue Tape peels off in a few seconds! I considered myself doing well to get Mastic off in 15 minutes! The mastic I'm talking about is 3M 2228. The reason for unwrapping the 88 is so that I don't damage the cable's outer jacket. I just ordered a box of Scotch 130C to have on hand. Thanks and 73, Jim K9YC From donovanf at starpower.net Fri Jun 5 02:02:41 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 5 Jun 2020 02:02:41 -0400 (EDT) Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <006601d63a81$19300d20$4b902760$@w2irt.net> Message-ID: <1332091099.1746907.1591336961076.JavaMail.root@starpower.net> This is an interesting video demonstrating the relative benefits of heat shrink and cold shrink tubing www.youtube.com/watch?v=wSOXfkB6Jgw 73 Frank W3LPL ----- Original Message ----- From: "Peter Dougherty" To: "Edward R Cole" , "Elecraft Reflector" Sent: Thursday, June 4, 2020 3:01:59 PM Subject: Re: [Elecraft] FIXED--was NOT the feedline Ed, this is the stuff I use on my outdoor connectors: https://tinyurl.com/y7uqqwsb Marine grade adhesive lined. 3/4" for plain ol' PL259 connections, and 1" for N connectors. And I mis-spoke (mis-typed??) earlier. Had a senior moment when I said Scotch 130 and Scotch 88 was my default. That HAD BEEN my default. My new default from about 3 or 4 years ago is Scotch 130 and this heat shrink if it's in the air, and just the marine grade heat shrink if it's at ground level. I find this combination to be unbeatable. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Edward R Cole Sent: Thursday, June 4, 2020 3:36 AM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline Some large coax connectors are supplied with heat shrink that has a melted inner "goo" which is very good sealant. I've found removal is not messy so apparently the "goo" cures in some manner. Pretty sure you can buy it at commercial electrical suppliers (but probably in 4-foot chunks which will cost you). I buy my ordinary heat shrink and tywraps (Thomas & Betts) from a local commercial electrical supply house. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From w4ram at outlook.com Fri Jun 5 04:59:13 2020 From: w4ram at outlook.com (W4RAM) Date: Fri, 5 Jun 2020 01:59:13 -0700 (MST) Subject: [Elecraft] SETTING THE K2 REFERENCE OSCILLATOR Message-ID: <1591347553904-0.post@n2.nabble.com> Good morning, I am looking for assistance to be able to properly complete the reference oscillator calibration. Situation: despite moving C22 I don't see any change or correction when I try to zero beat signal from RWM (9,996.00) Performed procedure: 1. I tuned the K2 with the RWM signal. I was able to "zero beat" in 9,998.25 LSB (diff. +2.25). 2. I connected the internal counter from P6 to TP1. 3. I adjusted C22 (moved counterclockwise) I did not continue with Run CAL PLL and CAL FIL. I am using vertical HF external antenna. Thank you for any advice. V/R Al W4RAM -- Sent from: http://elecraft.365791.n2.nabble.com/ From Lyn at LNAINC.com Fri Jun 5 08:03:15 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Fri, 5 Jun 2020 07:03:15 -0500 Subject: [Elecraft] Cold Shrink Tubing (was Re: FIXED) Message-ID: <011a01d63b31$4b825fc0$e2871f40$@LNAINC.com> Great video, Frank. Thanks for sharing. I had no idea cold shrink could potentially perform that well. Is that what you're using on buried cables? 73 Lyn, W0LEN > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of donovanf at starpower.net > Sent: Friday, June 05, 2020 1:03 AM > To: Elecraft Reflector > Subject: Re: [Elecraft] FIXED--was NOT the feedline > > This is an interesting video demonstrating the relative benefits of > heat shrink and cold shrink tubing > > > www.youtube.com/watch?v=wSOXfkB6Jgw > > > 73 > Frank > W3LPL From jstengrevics at comcast.net Fri Jun 5 08:30:27 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Fri, 5 Jun 2020 08:30:27 -0400 Subject: [Elecraft] Tech Support - I Appreciate the Difficulty... Message-ID: <74302D43-016D-461C-82CE-FE0E1387059F@comcast.net> of the current situation, but wow? I have been going back and forth with tech support via email (which of course is half the problem) for 3 weeks now. I send an email, it gets passed to the K3S expert, he gets a garbled message, I get a response that makes no sense, I send another message, it gets passed along, I get another response that makes no sense, and on and on ad infinitum. John WA1EAZ From mgcizek at gmail.com Fri Jun 5 08:36:43 2020 From: mgcizek at gmail.com (Mike Cizek W0VTT) Date: Fri, 5 Jun 2020 07:36:43 -0500 Subject: [Elecraft] Tech Support - I Appreciate the Difficulty... In-Reply-To: <74302D43-016D-461C-82CE-FE0E1387059F@comcast.net> References: <74302D43-016D-461C-82CE-FE0E1387059F@comcast.net> Message-ID: <7232AB84C7C84D25A6CC13EDAC77F86F@X230> ONLY 3 weeks? Mine started 7 April and is still going on. The longest delays seem to be between our contact person and the "K3 expert". Eliminating the middle man would help a LOT. K3s #11894 Overdrive Faults -- 73, Mike Cizek W0VTT -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John Stengrevics Sent: Friday, June 05, 2020 07:30 To: Elecraft Refl Subject: [Elecraft] Tech Support - I Appreciate the Difficulty... of the current situation, but wow. I have been going back and forth with tech support via email (which of course is half the problem) for 3 weeks now. I send an email, it gets passed to the K3S expert, he gets a garbled message, I get a response that makes no sense, I send another message, it gets passed along, I get another response that makes no sense, and on and on ad infinitum. John WA1EAZ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mgcizek at gmail.com From exbpi at comcast.net Fri Jun 5 08:57:24 2020 From: exbpi at comcast.net (exbpi at comcast.net) Date: Fri, 5 Jun 2020 05:57:24 -0700 Subject: [Elecraft] KPA1500 fan mod done - MUCH better In-Reply-To: <998E32D5-8A90-4E8B-B96A-854D2B504FEC@gmail.com> References: <998E32D5-8A90-4E8B-B96A-854D2B504FEC@gmail.com> Message-ID: <003b01d63b38$dc8e9ef0$95abdcd0$@comcast.net> Dave, So, are these mods documented somewhere on the Elecraft site? I have been unable to locate them. Further, I can't even get Elecraft to respond about when they will provide schematics for the KPA1500. Thanks Mike K7PI -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Dave Sent: Thursday, June 4, 2020 22:41 To: Eric Norris Cc: elecraft at mailman qth. net Subject: Re: [Elecraft] KPA1500 fan mod done - MUCH better Yeah PSU fan noise is on par with the fans in the Flex 6700 now. PC is almost completely silent. Thinking of locating the amp, radio, and 4O3A 2x8 antenna switch in my garage in a half height server cabinet. Then I could hear myself think, but maybe I don?t want to hear myself ;-) The two chip resistor mod on filter board was fun. I have experience with surface mount rework so no big deal. One resistor was the size of ?16? onthe date on a penny (2016). Other mods - they installed zener diodes tonthe gates on the LDMOS devices to protect against overdrive. That is one thing the LDMOS devices do not like. Mybamp uses a pair of NXP 1K50H devices which I feel are more rugged than BLF188 and 189s. I heard early amps used the 188s but no proof of that. Have fun! 73 Dave Sent from my iPad > On Jun 5, 2020, at 1:10 AM, Eric Norris wrote: > > ? > I had completely forgotten that I did this mod, and the two resistors mod. That, and the piece of grit or whatever that was stuck in one of the PSU fans making it scream like a banshee, took the KPA1500 PSU fan noise from being intolerable to unnoticable. > > Good times! Ain't it grand! > > 73 Eric WD6DBM > >> On Thu, Jun 4, 2020, 4:59 PM wrote: >> Hi All, >> >> >> >> Received the new LED board for my KPA1500 power supply. Easy to swap >> out, six plugs and two screws. You can move one plug at a time to the >> new board so there is no chance of screwing anything up. To put the >> screws back in I suggest a Phillips screwdriver with magnetic tip. It >> took more time to remove the 16 screws from the top cover than to swap the board. >> >> >> >> THANK YOU Elecraft! >> >> >> >> 73 >> >> Dave wo2x >> >> >> >> >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> norrislawfirm2 at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to exbpi at comcast.net From dave at w8fgu.com Fri Jun 5 09:02:25 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Fri, 05 Jun 2020 13:02:25 +0000 Subject: [Elecraft] SETTING THE K2 REFERENCE OSCILLATOR In-Reply-To: <1591347553904-0.post@n2.nabble.com> References: <1591347553904-0.post@n2.nabble.com> Message-ID: Hi Al, The VFO tuning of the K2 is drivin by its low phase noise PLL and a lookup table (created by CAL PLL) as well as the values stored for the BFO settings (CAL FIL). Therefore, after adjusting the 4MHz oscillator via C22, those routines must also be run as they depend on the new crystal frequency you just adjusted (with the exception of CW mode - see Don's explanation on his website). If adjusted correctly, you may be able to get the VFO withing 20Hz. Don Wilhelm (W3FPR) has a web page that explains this operation and offers some background as to the K2 VFO design and operation concerning this adjustment. He also lists some other alternative methods. For the adjustments I do for the K2's that come across my bench, I run CAL FCTR and use the probe to measure the output of my Leo Bodnar GPSDO with one port set to 20MHz. I adjust C22 until the LCD display matches 20MHz (this is fairly tough to do as C22 is not very granular). But after I get it set, I then run CAL PLL and the CAL FIL where I go through each filter for each mode and adjust the frequency up and then back down to the original value. This causes the routine to rewrite the entry. The key to this adjustment is allowing the K2 to reach a steady operating temperature. You can find Don's page here: http://www.w3fpr.com/dial_cal.html 73, Dave W8FGU ------ Original Message ------ From: "W4RAM" To: elecraft at mailman.qth.net Sent: 6/5/2020 4:59:13 AM Subject: [Elecraft] SETTING THE K2 REFERENCE OSCILLATOR >Good morning, >I am looking for assistance to be able to properly complete the reference >oscillator calibration. > >Situation: despite moving C22 I don't see any change or correction when I >try to zero beat signal from RWM (9,996.00) > >Performed procedure: >1. I tuned the K2 with the RWM signal. I was able to "zero beat" in 9,998.25 >LSB (diff. +2.25). >2. I connected the internal counter from P6 to TP1. >3. I adjusted C22 (moved counterclockwise) > >I did not continue with Run CAL PLL and CAL FIL. >I am using vertical HF external antenna. > >Thank you for any advice. > >V/R > >Al >W4RAM > > > > > > >-- >Sent from: http://elecraft.365791.n2.nabble.com/ >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to dave at w8fgu.com From pincon at erols.com Fri Jun 5 08:39:12 2020 From: pincon at erols.com (Charlie T) Date: Fri, 5 Jun 2020 08:39:12 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: References: <07f601d63955$34409760$9cc1c620$@w2irt.net> <6ef23a52-dca1-ef38-9c16-b8c61a40644c@nk7z.net> <081501d639bc$ad766260$08632720$@w2irt.net> <23fc097c-4cbb-7d2f-dbe2-cb76a5138df8@montac.com> <04d6ae13-ee4a-03bf-31ac-2fab27f7a99f@Gmail.com> <006201d63a7e$b9384010$2ba8c030$@w2irt.net> <955a714c-9068-c949-e486-8761bbdc5194@blomand.net> Message-ID: <003601d63b36$54ccf7c0$fe66e740$@erols.com> I have successfully used a method of water-proofing a coax splice by first coating the outside of the connectors with silicone (di-electric) grease, then wrapping about 18" X 5" (or?) piece of plain plastic garbage bag around the junction. The next step is to wrap that with several layers of good electrical tape extending the wrap about 2 inches past the plastic. I do NOT like the scotch stuff since the adhesive gets gooey over time. Believe it or not, the cheap chicom stuff Harbor Freight sells is quite good. I have opened up fittings done this way this over ten years later and the connection is bright & shiny with no hint of water corrosion. 73, Charlie k3ICH From a.durbin at msn.com Fri Jun 5 11:01:19 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 5 Jun 2020 15:01:19 +0000 Subject: [Elecraft] KPA1500 power per frequency bin In-Reply-To: References: Message-ID: "As has been mentioned - shouldn't be too difficult to do this with an external Arduino based controller. " My brain needed something to do while I was watching 30 m for new DX so I created a rough draft proposal for "power per frequency bin". I created this to stimulate discussion not because I have any intention of coding it myself. I don't have a KPA1500 and my current power management scheme is adequate for my KPA500. https://www.dropbox.com/s/scuxibyl6laueak/Power%20by%20bin%20-%20draft%201%20k3wyc.pdf?dl=0 73, Andy, k3wyc From k2asp at kanafi.org Fri Jun 5 11:17:27 2020 From: k2asp at kanafi.org (Phil Kane) Date: Fri, 5 Jun 2020 08:17:27 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> Message-ID: On 6/4/2020 8:50 PM, Ed Tanton wrote: > I should have mentioned that. I strip 5 or 6 inches of insulation. That > was why I cleaned the top of the ground rod and sprayed it with > electrical lubricant. I used a stainless steel hose clamp to hold the > stripped wires against the ground rod at each end of the stripped wire > portions. The next part is what I wrote about to start with. Thank you for explaining that. For our commercial and public safety communication site grounding systems our firm insists on cad-weld at all exposed and buried connection points but I would suspect that very few hams, let alone residential or even commercial electricians, would go to that length. My mentor in that area, the late Tom Croda, who during his lifetime was the national expert in comm site power and grounding, would not settle for anything less. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From donwilh at embarqmail.com Fri Jun 5 11:58:20 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 5 Jun 2020 11:58:20 -0400 Subject: [Elecraft] SETTING THE K2 REFERENCE OSCILLATOR In-Reply-To: <1591347553904-0.post@n2.nabble.com> References: <1591347553904-0.post@n2.nabble.com> Message-ID: Al, The C22 setting does nothing to change the K2 display - you must run CAL PLL and CAL FIL (for all filters) before any change in the display takes place. Normally, the reference oscillator only serves as a clock for the MCU - the frequency display does not depend on it. See the K2 Dial Calibration on my website www.w3fpr.com. If you are using RWM (which transmits only a carrier), you should use the method EA3ADV and I developed to use only a carrier instead of the transmitted tones such as those from WWV. 73, Don W3FPR On 6/5/2020 4:59 AM, W4RAM wrote: > Good morning, > I am looking for assistance to be able to properly complete the reference > oscillator calibration. > > Situation: despite moving C22 I don't see any change or correction when I > try to zero beat signal from RWM (9,996.00) > > Performed procedure: > 1. I tuned the K2 with the RWM signal. I was able to "zero beat" in 9,998.25 > LSB (diff. +2.25). > 2. I connected the internal counter from P6 to TP1. > 3. I adjusted C22 (moved counterclockwise) > > I did not continue with Run CAL PLL and CAL FIL. > I am using vertical HF external antenna. > From tberry1 at triad.rr.com Fri Jun 5 12:04:41 2020 From: tberry1 at triad.rr.com (Tom Berry) Date: Fri, 5 Jun 2020 12:04:41 -0400 Subject: [Elecraft] KPA500 Dead In-Reply-To: <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: I was operating on FT8? 20 meters for quite a long time with my KPA500 running about 400 watts and heard a few pops (like something arching).? Heard it a few more times then the amp went off. Now it will not power on.? No lights, nothing.? I checked the fuse and it is OK. Can you tell me where to start looking? Thanks Tom AAA4VV From ghyoungman at gmail.com Fri Jun 5 12:05:11 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 5 Jun 2020 12:05:11 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> Message-ID: Cad-weld isn?t expensive ? $11-15 per weld depending on where you buy the stuff. Typically sold in kits of 6 one-shot crucibles, and available for varying ground wire sizes on 1/2? or 5/8? ground rods. Grant NQ5T > On Jun 5, 2020, at 11:17 AM, Phil Kane wrote: > > On 6/4/2020 8:50 PM, Ed Tanton wrote: > >> I should have mentioned that. I strip 5 or 6 inches of insulation. That >> was why I cleaned the top of the ground rod and sprayed it with >> electrical lubricant. I used a stainless steel hose clamp to hold the >> stripped wires against the ground rod at each end of the stripped wire >> portions. The next part is what I wrote about to start with. > > Thank you for explaining that. For our commercial and public safety > communication site grounding systems our firm insists on cad-weld at all > exposed and buried connection points but I would suspect that very few > hams, let alone residential or even commercial electricians, would go to > that length. My mentor in that area, the late Tom Croda, who during his > lifetime was the national expert in comm site power and grounding, would > not settle for anything less. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > From lists at w2irt.net Fri Jun 5 12:13:03 2020 From: lists at w2irt.net (Peter Dougherty) Date: Fri, 5 Jun 2020 12:13:03 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <1332091099.1746907.1591336961076.JavaMail.root@starpower.net> References: <006601d63a81$19300d20$4b902760$@w2irt.net> <1332091099.1746907.1591336961076.JavaMail.root@starpower.net> Message-ID: <00f801d63b54$3116ae70$93440b50$@w2irt.net> First time I've ever heard of this product and it's quite intriguing. Where is this available from in quantities a typical home station would use? I go through a 3 foot section of .75" marine grade heat shrink in about 3-5 years. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of donovanf at starpower.net Sent: Friday, June 5, 2020 2:03 AM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline This is an interesting video demonstrating the relative benefits of heat shrink and cold shrink tubing www.youtube.com/watch?v=wSOXfkB6Jgw 73 Frank W3LPL ----- Original Message ----- From: "Peter Dougherty" To: "Edward R Cole" , "Elecraft Reflector" Sent: Thursday, June 4, 2020 3:01:59 PM Subject: Re: [Elecraft] FIXED--was NOT the feedline Ed, this is the stuff I use on my outdoor connectors: https://tinyurl.com/y7uqqwsb Marine grade adhesive lined. 3/4" for plain ol' PL259 connections, and 1" for N connectors. And I mis-spoke (mis-typed??) earlier. Had a senior moment when I said Scotch 130 and Scotch 88 was my default. That HAD BEEN my default. My new default from about 3 or 4 years ago is Scotch 130 and this heat shrink if it's in the air, and just the marine grade heat shrink if it's at ground level. I find this combination to be unbeatable. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Edward R Cole Sent: Thursday, June 4, 2020 3:36 AM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline Some large coax connectors are supplied with heat shrink that has a melted inner "goo" which is very good sealant. I've found removal is not messy so apparently the "goo" cures in some manner. Pretty sure you can buy it at commercial electrical suppliers (but probably in 4-foot chunks which will cost you). I buy my ordinary heat shrink and tywraps (Thomas & Betts) from a local commercial electrical supply house. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From lists at w2irt.net Fri Jun 5 12:18:24 2020 From: lists at w2irt.net (Peter Dougherty) Date: Fri, 5 Jun 2020 12:18:24 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> Message-ID: <010301d63b54$f0dee740$d29cb5c0$@w2irt.net> My whole ground system is Cadweld bonded. I bought the new style shots and purchased the igniter from Joel and the RF Connection in MD. Couldn't have been happier. And they're fun to fire off, too! - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Grant Youngman Sent: Friday, June 5, 2020 12:05 PM To: k2asp at arrl.net Cc: Elecraft Refl Subject: Re: [Elecraft] Self-fusing liquid electrical tape Cad-weld isn?t expensive ? $11-15 per weld depending on where you buy the stuff. Typically sold in kits of 6 one-shot crucibles, and available for varying ground wire sizes on 1/2? or 5/8? ground rods. Grant NQ5T > On Jun 5, 2020, at 11:17 AM, Phil Kane wrote: > > On 6/4/2020 8:50 PM, Ed Tanton wrote: > >> I should have mentioned that. I strip 5 or 6 inches of insulation. >> That was why I cleaned the top of the ground rod and sprayed it with >> electrical lubricant. I used a stainless steel hose clamp to hold the >> stripped wires against the ground rod at each end of the stripped >> wire portions. The next part is what I wrote about to start with. > > Thank you for explaining that. For our commercial and public safety > communication site grounding systems our firm insists on cad-weld at > all exposed and buried connection points but I would suspect that very > few hams, let alone residential or even commercial electricians, would > go to that length. My mentor in that area, the late Tom Croda, who > during his lifetime was the national expert in comm site power and > grounding, would not settle for anything less. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From ghyoungman at gmail.com Fri Jun 5 12:19:09 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 5 Jun 2020 12:19:09 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <00f801d63b54$3116ae70$93440b50$@w2irt.net> References: <006601d63a81$19300d20$4b902760$@w2irt.net> <1332091099.1746907.1591336961076.JavaMail.root@starpower.net> <00f801d63b54$3116ae70$93440b50$@w2irt.net> Message-ID: <394952A8-10C9-46F4-AD94-742C025A2C20@gmail.com> DigiKey has it in 6? or 8? pieces of various diameters. It runs around $25.00 per piece, with quantity discounts. Not inexpensive ? Grant NQ5T > On Jun 5, 2020, at 12:13 PM, Peter Dougherty wrote: > > First time I've ever heard of this product and it's quite intriguing. Where > is this available from in quantities a typical home station would use? I go > through a 3 foot section of .75" marine grade heat shrink in about 3-5 > years. > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of donovanf at starpower.net > Sent: Friday, June 5, 2020 2:03 AM > To: Elecraft Reflector > Subject: Re: [Elecraft] FIXED--was NOT the feedline > > This is an interesting video demonstrating the relative benefits of heat > shrink and cold shrink tubing > > > www.youtube.com/watch?v=wSOXfkB6Jgw > > > 73 > Frank > W3LPL > From a.durbin at msn.com Fri Jun 5 12:21:29 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 5 Jun 2020 16:21:29 +0000 Subject: [Elecraft] KPA500 Dead Message-ID: "Can you tell me where to start looking?" A report of a similar event was posted just a few weeks ago. Some of us were assuming it was a KPA500 failure but it turned out to be a failure of the input AC voltage. Is AC power present? Does the KPA500 power up if connected to a known good power outlet? Andy, k3wyc From g4gnx at g4gnx.com Fri Jun 5 12:33:03 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Fri, 05 Jun 2020 16:33:03 +0000 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: With all due respect, if you don't know where to start looking, then please don't. Unless you really know what you're doing, then you should not remove the lid. Fault finding could easily result in the need to power up and expose yourself to many hidden dangers. It's been suggested that lack of AC power may be the cause. That should be a safe thing to check, without opening the KPA500. Stay safe - send it back to Elecraft. :-) 73, Alan. G4GNX ------ Original Message ------ From: "Tom Berry" To: elecraft at mailman.qth.net Sent: 05/06/2020 17:04:41 Subject: [Elecraft] KPA500 Dead >I was operating on FT8 20 meters for quite a long time with my KPA500 running about 400 watts and heard a few pops (like something arching). Heard it a few more times then the amp went off. > >Now it will not power on. No lights, nothing. I checked the fuse and it is OK. > >Can you tell me where to start looking? > > >Thanks > >Tom AAA4VV > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to g4gnx at g4gnx.com From sp2bpd at yahoo.com Fri Jun 5 12:45:51 2020 From: sp2bpd at yahoo.com (P H) Date: Fri, 5 Jun 2020 16:45:51 +0000 (UTC) Subject: [Elecraft] [K2] K2 frozen on startup References: <1067392905.1673149.1591375551878.ref@mail.yahoo.com> Message-ID: <1067392905.1673149.1591375551878@mail.yahoo.com> Recently I'vetried to add K6XX Cw Indicator and W3FPR Fixed Audio Output to my K2 (# above 4000). ?Something went wrong when I was soldering wiresto Control Board and Front Panel Board and the result is following: - radio freezes at startup, - when R5 (RIT) pot is fully CW display stops with "ELE", - with R5 pot fullyCCW display reaches? "ELECRAFT"? and I may or may not hear receiver noise(depending on the position of pots R1 (Keyer Speed) and R2 (Pwr Out). I've checked thevoltage on Vpots line. It was 0.55V. Vpots line goes topin 7 of the MCU (PIC18C452 microcontroller, U6 on Control Board)?whichseems to be an analog input. Thus my next stephas been removing? MCU from the socket. As a result Vpots line went up to5V. My conclusion is that MCU must be broken. Am I right? If positive: Whatelse shall I check before I order a new microcontroller from Elecraft (I'moverseas and don't want to order parts one by one). Regards Piotr, SP2BPD From donovanf at starpower.net Fri Jun 5 13:00:13 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 5 Jun 2020 13:00:13 -0400 (EDT) Subject: [Elecraft] Cold Shrink Tubing (was Re: FIXED) In-Reply-To: <011a01d63b31$4b825fc0$e2871f40$@LNAINC.com> Message-ID: <1170007709.1928601.1591376413992.JavaMail.root@starpower.net> Hi Lynn, I have no buried cable splices in my ham station. The only splices I once had failed years ago: - The buried AC power feed from the street was fabricated from two spliced cables. The neutral wire splice failed causing a near-catastrophe in my home - the buried 240 volt AC power feed to a shed 200 meters from my home is fed by two spliced cables. One of the splices failed, now I have only 120 volts in the shed... Now if I need to splice a buried cable I bring it to the surface and splice it above ground where it can be repaired. Cold shrink tubing is widely available on eBay, usually about ten dollars each 73 Frank W3LPL ----- Original Message ----- From: "Lyn Norstad" To: donovanf at starpower.net, "Elecraft Reflector" Sent: Friday, June 5, 2020 12:03:15 PM Subject: Cold Shrink Tubing (was Re: FIXED) Great video, Frank. Thanks for sharing. I had no idea cold shrink could potentially perform that well. Is that what you're using on buried cables? 73 Lyn, W0LEN > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of donovanf at starpower.net > Sent: Friday, June 05, 2020 1:03 AM > To: Elecraft Reflector > Subject: Re: [Elecraft] FIXED--was NOT the feedline > > This is an interesting video demonstrating the relative benefits of > heat shrink and cold shrink tubing > > > www.youtube.com/watch?v=wSOXfkB6Jgw > > > 73 > Frank > W3LPL From nr4c at widomaker.com Fri Jun 5 13:08:37 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 5 Jun 2020 13:08:37 -0400 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: Message-ID: <87B31DC7-36E6-4EA9-842C-C79689E27420@widomaker.com> Fuses! 400 Watts ?for quite a long time?? Bet the fans were happy. Sent from my iPhone ...nr4c. bill > On Jun 5, 2020, at 12:07 PM, Tom Berry wrote: > > ?I was operating on FT8 20 meters for quite a long time with my KPA500 running about 400 watts and heard a few pops (like something arching). Heard it a few more times then the amp went off. > > Now it will not power on. No lights, nothing. I checked the fuse and it is OK. > > Can you tell me where to start looking? > > > Thanks > > Tom AAA4VV > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From kd4pbj at gmail.com Fri Jun 5 13:23:23 2020 From: kd4pbj at gmail.com (Chris Waldrup) Date: Fri, 5 Jun 2020 12:23:23 -0500 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: Message-ID: Hi Phil, I use Erico One Shot cad welds on my workshop grounding system. Everything is tied together with cad welded bare 6 AWG and I have 8 foot ground rods, although I had to drive them in at an angle. Our house is on top of a mountain in TN and soil depth varies from probably 6 ft deep to exposed rock in certain parts of the property. This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. Chris KD4PBJ > On Jun 5, 2020, at 10:19 AM, Phil Kane wrote: > > ?On 6/4/2020 8:50 PM, Ed Tanton wrote: > >> I should have mentioned that. I strip 5 or 6 inches of insulation. That >> was why I cleaned the top of the ground rod and sprayed it with >> electrical lubricant. I used a stainless steel hose clamp to hold the >> stripped wires against the ground rod at each end of the stripped wire >> portions. The next part is what I wrote about to start with. > > Thank you for explaining that. For our commercial and public safety > communication site grounding systems our firm insists on cad-weld at all > exposed and buried connection points but I would suspect that very few > hams, let alone residential or even commercial electricians, would go to > that length. My mentor in that area, the late Tom Croda, who during his > lifetime was the national expert in comm site power and grounding, would > not settle for anything less. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kd4pbj at gmail.com From lists at w2irt.net Fri Jun 5 13:28:51 2020 From: lists at w2irt.net (Peter Dougherty) Date: Fri, 5 Jun 2020 13:28:51 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <394952A8-10C9-46F4-AD94-742C025A2C20@gmail.com> References: <006601d63a81$19300d20$4b902760$@w2irt.net> <1332091099.1746907.1591336961076.JavaMail.root@starpower.net> <00f801d63b54$3116ae70$93440b50$@w2irt.net> <394952A8-10C9-46F4-AD94-742C025A2C20@gmail.com> Message-ID: <010501d63b5e$c7c55010$574ff030$@w2irt.net> Ouch! I'll get a few of these but reserve them for anything in the air that's difficult to access. I still have about 5 feet of the Ancor marine heat shrink for anything at ground level. - pjd -----Original Message----- From: Grant Youngman DigiKey has it in 6? or 8? pieces of various diameters. It runs around $25.00 per piece, with quantity discounts. Not inexpensive ? From kd4pbj at gmail.com Fri Jun 5 13:28:22 2020 From: kd4pbj at gmail.com (Chris Waldrup) Date: Fri, 5 Jun 2020 12:28:22 -0500 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: Message-ID: <8607097A-58A2-49A0-B760-B803AB1051FD@gmail.com> I meant to add I couldn't get the shots to fire with the sparking tool I purchased so I ran down to a fireworks store and purchased a box of sparklers. They do a ***fantastic*** job at ignition. Then when you're done after things cool a few gentle taps with a hammer breaks off the thin ceramic form and you're good to go. Chris KD4PBJ > On Jun 5, 2020, at 12:23 PM, Chris Waldrup wrote: > > ?Hi Phil, > > I use Erico One Shot cad welds on my workshop grounding system. Everything is tied together with cad welded bare 6 AWG and I have 8 foot ground rods, although I had to drive them in at an angle. Our house is on top of a mountain in TN and soil depth varies from probably 6 ft deep to exposed rock in certain parts of the property. This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. > > Chris > KD4PBJ > >>> On Jun 5, 2020, at 10:19 AM, Phil Kane wrote: >>> >>> ?On 6/4/2020 8:50 PM, Ed Tanton wrote: >>> >>> I should have mentioned that. I strip 5 or 6 inches of insulation. That >>> was why I cleaned the top of the ground rod and sprayed it with >>> electrical lubricant. I used a stainless steel hose clamp to hold the >>> stripped wires against the ground rod at each end of the stripped wire >>> portions. The next part is what I wrote about to start with. >> >> Thank you for explaining that. For our commercial and public safety >> communication site grounding systems our firm insists on cad-weld at all >> exposed and buried connection points but I would suspect that very few >> hams, let alone residential or even commercial electricians, would go to >> that length. My mentor in that area, the late Tom Croda, who during his >> lifetime was the national expert in comm site power and grounding, would >> not settle for anything less. >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> >> From a Clearing in the Silicon Forest >> Beaverton (Washington County) Oregon >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kd4pbj at gmail.com From k2asp at kanafi.org Fri Jun 5 13:32:33 2020 From: k2asp at kanafi.org (Phil Kane) Date: Fri, 5 Jun 2020 10:32:33 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> Message-ID: <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> On 6/5/2020 9:05 AM, Grant Youngman wrote: > Cad-weld isn?t expensive ? $11-15 per weld depending on where you buy > the stuff. Typically sold in kits of 6 one-shot crucibles, and > available for varying ground wire sizes on 1/2? or 5/8? ground rods. Agreed, but how many of us would go through that exercise? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From c-hawley at illinois.edu Fri Jun 5 13:38:42 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Fri, 5 Jun 2020 17:38:42 +0000 Subject: [Elecraft] KPA500 Dead In-Reply-To: <87B31DC7-36E6-4EA9-842C-C79689E27420@widomaker.com> References: , <87B31DC7-36E6-4EA9-842C-C79689E27420@widomaker.com> Message-ID: There?re a couple things in series with the transformer primaries that look like thermistors. Wonder about them. They?re labeled T and SL 1, and SL 2. Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Jun 5, 2020, at 12:08 PM, Nr4c wrote: > > ?Fuses! > > 400 Watts ?for quite a long time?? Bet the fans were happy. > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 5, 2020, at 12:07 PM, Tom Berry wrote: >> >> ?I was operating on FT8 20 meters for quite a long time with my KPA500 running about 400 watts and heard a few pops (like something arching). Heard it a few more times then the amp went off. >> >> Now it will not power on. No lights, nothing. I checked the fuse and it is OK. >> >> Can you tell me where to start looking? >> >> >> Thanks >> >> Tom AAA4VV >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From art at artg.tv Fri Jun 5 13:40:56 2020 From: art at artg.tv (Art Greenberg) Date: Fri, 05 Jun 2020 13:40:56 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> Message-ID: <665b5cb3-049b-4ded-b0f9-7f0fb66027b8@www.fastmail.com> Yeah, maybe I'm one of the exceptions. I just used 20 of them to build a lightning ground system for a new tower install. Easy to use and considerable peace of mind knowing the joints created will last a long time underground. -- Art Greenberg WA2LLN art at artg.tv On Fri, Jun 5, 2020, at 13:32, Phil Kane wrote: > On 6/5/2020 9:05 AM, Grant Youngman wrote: > > > Cad-weld isn?t expensive ? $11-15 per weld depending on where you buy > > the stuff. Typically sold in kits of 6 one-shot crucibles, and > > available for varying ground wire sizes on 1/2? or 5/8? ground rods. > > Agreed, but how many of us would go through that exercise? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to art at artg.tv From donwilh at embarqmail.com Fri Jun 5 13:44:53 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 5 Jun 2020 13:44:53 -0400 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: Tom, The best place to start is with your AC Power. If that is OK, the next step is to email support at elecraft.com. 73, Don W3FPR On 6/5/2020 12:04 PM, Tom Berry wrote: > I was operating on FT8? 20 meters for quite a long time with my KPA500 > running about 400 watts and heard a few pops (like something arching). > Heard it a few more times then the amp went off. > > Now it will not power on.? No lights, nothing.? I checked the fuse and > it is OK. > > Can you tell me where to start looking? From wunder at wunderwood.org Fri Jun 5 13:46:12 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Fri, 5 Jun 2020 10:46:12 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> Message-ID: <7D5DE2CF-8AB4-4173-81C4-6644B483A87B@wunderwood.org> Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. I just don?t see a downside. :-) wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 5, 2020, at 10:32 AM, Phil Kane wrote: > > On 6/5/2020 9:05 AM, Grant Youngman wrote: > >> Cad-weld isn?t expensive ? $11-15 per weld depending on where you buy >> the stuff. Typically sold in kits of 6 one-shot crucibles, and >> available for varying ground wire sizes on 1/2? or 5/8? ground rods. > > Agreed, but how many of us would go through that exercise? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From jim at audiosystemsgroup.com Fri Jun 5 13:53:42 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 5 Jun 2020 10:53:42 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> Message-ID: On 6/5/2020 8:17 AM, Phil Kane wrote: > For our commercial and public safety > communication site grounding systems our firm insists on cad-weld at all > exposed and buried connection points but I would suspect that very few > hams, let alone residential or even commercial electricians, would go to > that length. It was years before I went from mechanical clamps to cadwelds. No question that it's the way to go. Some are packaged much better than others. I prefer the ones where the two powders are packaged separately. NK7Z sells them. 73, Jim K9YC From jim at audiosystemsgroup.com Fri Jun 5 14:02:23 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 5 Jun 2020 11:02:23 -0700 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: On 6/5/2020 9:33 AM, Alan - G4GNX wrote: > Unless you really know what you're doing, then you should not remove the > lid. Fault finding could easily result in the need to power up and > expose yourself to many hidden dangers. Ummm -- we're hams, and are supposed to have at least some technical background. If we can't open up a product like one of the Elecraft rigs and at least look around we ought to send our boxtop license back to the government agency that issued it. That doesn't mean that we should attempt circuit board level troubleshooting. Elecraft sells most of their products as kits that require minimal assembly of pre-tested circuit boards and other components. I built two K3s, a KX3, two P3s with SVGA boards, and a KPA500. The KPA1500 is not available as a kit. 73, Jim K9YC From jim at audiosystemsgroup.com Fri Jun 5 14:07:22 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 5 Jun 2020 11:07:22 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: Message-ID: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> On 6/5/2020 10:23 AM, Chris Waldrup wrote: > This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC From g4gnx at g4gnx.com Fri Jun 5 14:10:01 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Fri, 05 Jun 2020 18:10:01 +0000 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: Yes, we're supposed to have some technical background, but by asking "where do I start" tends to indicate that there might just be an insufficiency of necessary knowledge. I would hate to see someone die, because I had failed to speak out. :-) I also built several Elecraft products, including a couple of KPA500s, and the manual clearly indicates screwing the lid down, before powering up. There's a good reason for that. My apologies to the OP. I have no wish to offend you. 73, Alan. G4GNX ------ Original Message ------ From: "Jim Brown" To: elecraft at mailman.qth.net Sent: 05/06/2020 19:02:23 Subject: Re: [Elecraft] KPA500 Dead >On 6/5/2020 9:33 AM, Alan - G4GNX wrote: >>Unless you really know what you're doing, then you should not remove the lid. Fault finding could easily result in the need to power up and expose yourself to many hidden dangers. > >Ummm -- we're hams, and are supposed to have at least some technical background. If we can't open up a product like one of the Elecraft rigs and at least look around we ought to send our boxtop license back to the government agency that issued it. That doesn't mean that we should attempt circuit board level troubleshooting. > >Elecraft sells most of their products as kits that require minimal assembly of pre-tested circuit boards and other components. I built two K3s, a KX3, two P3s with SVGA boards, and a KPA500. The KPA1500 is not available as a kit. > >73, Jim K9YC > From donovanf at starpower.net Fri Jun 5 14:13:37 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 5 Jun 2020 14:13:37 -0400 (EDT) Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> Message-ID: <713159741.1960095.1591380816993.JavaMail.root@starpower.net> Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL ----- Original Message ----- From: "Jim Brown" To: elecraft at mailman.qth.net Sent: Friday, June 5, 2020 6:07:22 PM Subject: Re: [Elecraft] Self-fusing liquid electrical tape On 6/5/2020 10:23 AM, Chris Waldrup wrote: > This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From kd4pbj at gmail.com Fri Jun 5 14:18:41 2020 From: kd4pbj at gmail.com (Chris Waldrup) Date: Fri, 5 Jun 2020 13:18:41 -0500 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> References: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> Message-ID: <4F86AB1F-9D36-4948-A5BB-799F84BD2328@gmail.com> Right sir I understand. I just mean I don't have large towers and big antennas. Just want be protected since we are up high. Chris > On Jun 5, 2020, at 1:09 PM, Jim Brown wrote: > > ?On 6/5/2020 10:23 AM, Chris Waldrup wrote: >> This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. > > The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! > > > On 6/5/2020 10:46 AM, Walter Underwood wrote: > > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. > > Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kd4pbj at gmail.com From jim at audiosystemsgroup.com Fri Jun 5 14:35:17 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 5 Jun 2020 11:35:17 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <713159741.1960095.1591380816993.JavaMail.root@starpower.net> References: <713159741.1960095.1591380816993.JavaMail.root@starpower.net> Message-ID: <12f1f4b2-8629-6d6e-5cb1-61499077590e@audiosystemsgroup.com> Neat! Jim On 6/5/2020 11:13 AM, donovanf at starpower.net wrote: > Hey Jim, > > > If you think Cad-Welding a ground rod is fun to watch, take a look at > thermite welding of railroad tracks: > > > www.youtube.com/watch?v=5uxsFglz2ig From rmcgraw at blomand.net Fri Jun 5 14:41:19 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 5 Jun 2020 13:41:19 -0500 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: <36a95c91-1640-9646-e0ca-b201198a9b03@blomand.net> You say you checked the "fuse" and it is OK.?? In fact, there are two fuses.? If either has failed the amp won't power on.?? Then check the voltage at the outlet from where the amp is powered. If you don't know where to start looking,.........if the above two items are OK, then I suggest sending an e-mail to tech support at Elecraft and ask for a RA.? Chances are the issue is beyond local repair, either by knowledge or test equipment and parts. 73 Bob, K4TAX On 6/5/2020 11:04 AM, Tom Berry wrote: > I was operating on FT8? 20 meters for quite a long time with my KPA500 > running about 400 watts and heard a few pops (like something > arching).? Heard it a few more times then the amp went off. > > Now it will not power on.? No lights, nothing.? I checked the fuse and > it is OK. > > Can you tell me where to start looking? > > > Thanks > > Tom AAA4VV > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From tberry1 at triad.rr.com Fri Jun 5 14:47:43 2020 From: tberry1 at triad.rr.com (Tom Berry) Date: Fri, 5 Jun 2020 14:47:43 -0400 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: <56cfb1f0-7633-3e83-3a5a-995a73193312@triad.rr.com> On 6/5/2020 2:02 PM, Jim Brown wrote: > On 6/5/2020 9:33 AM, Alan - G4GNX wrote: >> Unless you really know what you're doing, then you should not remove >> the lid. Fault finding could easily result in the need to power up >> and expose yourself to many hidden dangers. > > Ummm -- we're hams, and are supposed to have at least some technical > background. If we can't open up a product like one of the Elecraft > rigs and at least look around we ought to send our boxtop license back > to the government agency that issued it. That doesn't mean that we > should attempt circuit board level troubleshooting. > > Elecraft sells most of their products as kits that require minimal > assembly of pre-tested circuit boards and other components. I built > two K3s, a KX3, two P3s with SVGA boards, and a KPA500. The KPA1500 is > not available as a kit. > > 73, Jim K9YC Jim,? I didn't say I couldn't look around and I'm certainly not going to send my "BOXTOP" license back.? I have had it since 1955.? Took all the CW tests in front of an examiner etc. I want to congratulate you on building all the Elecraft stuff.? I have built an AT-1, the 30 watt Heathkit transmitter, DX100, HW101, and various test equipment. Tom AA4VV ex W8VSV. From rmcgraw at blomand.net Fri Jun 5 14:49:49 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 5 Jun 2020 13:49:49 -0500 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> Message-ID: <4fb0d1c6-a153-275b-1bba-a8be6eba0eb6@blomand.net> Anyone that would desire to have a proper and reliable installation for connecting a conductor to a ground rod.??? Me for one! To that end, I've visited many ham stations where it seems there is a mish mash of equipment connected in a hap hazard manner.??? I view this is far from good engineering practice and methods.? And then they often wonder why things don't work or don't work reliably. 73 Bob, K4TAX On 6/5/2020 12:32 PM, Phil Kane wrote: > On 6/5/2020 9:05 AM, Grant Youngman wrote: > >> Cad-weld isn?t expensive ? $11-15 per weld depending on where you buy >> the stuff. Typically sold in kits of 6 one-shot crucibles, and >> available for varying ground wire sizes on 1/2? or 5/8? ground rods. > Agreed, but how many of us would go through that exercise? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > From tberry1 at triad.rr.com Fri Jun 5 14:55:07 2020 From: tberry1 at triad.rr.com (Tom Berry) Date: Fri, 5 Jun 2020 14:55:07 -0400 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: On 6/5/2020 2:10 PM, Alan - G4GNX wrote: > Yes, we're supposed to have some technical background, but by asking > "where do I start" tends to indicate that there might just be an > insufficiency of necessary knowledge. I would hate to see someone die, > because I had failed to speak out. :-) > > I also built several Elecraft products, including a couple of KPA500s, > and the manual clearly indicates screwing the lid down, before > powering up. There's a good reason for that. > > My apologies to the OP. I have no wish to offend you. > > 73, > > Alan. G4GNX > Hi Alan, You have not offended me.?? I have taken the top off and looked around.? I certainly don't see anything that looks like it has been arching. The AC power is ok.? The fuses are ok.?? Just thought someone would have an idea on where to start looking. I have emailed Elecraft but so far no answer.? Sent the email on 6/3/2020. Thanks 73 Tom AA4VV From rmcgraw at blomand.net Fri Jun 5 14:55:01 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 5 Jun 2020 13:55:01 -0500 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <7D5DE2CF-8AB4-4173-81C4-6644B483A87B@wunderwood.org> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> <7D5DE2CF-8AB4-4173-81C4-6644B483A87B@wunderwood.org> Message-ID: Just look at $11.00 per ground rod connection for Cad-Weld as compared to? $1.98 for a mechanical clamp.?? Which do you think a ham will choose ? 73 Bob, K4TAX On 6/5/2020 12:46 PM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. > > I just don?t see a downside. :-) > > wunder > K6WRU > Walter Underwood > CM87wj > http://observer.wunderwood.org/ (my blog) > >> On Jun 5, 2020, at 10:32 AM, Phil Kane wrote: >> >> On 6/5/2020 9:05 AM, Grant Youngman wrote: >> >>> Cad-weld isn?t expensive ? $11-15 per weld depending on where you buy >>> the stuff. Typically sold in kits of 6 one-shot crucibles, and >>> available for varying ground wire sizes on 1/2? or 5/8? ground rods. >> Agreed, but how many of us would go through that exercise? >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> >> From a Clearing in the Silicon Forest >> Beaverton (Washington County) Oregon >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to wunder at wunderwood.org > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From k6dgw at foothill.net Fri Jun 5 14:56:29 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 5 Jun 2020 11:56:29 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <713159741.1960095.1591380816993.JavaMail.root@starpower.net> References: <713159741.1960095.1591380816993.JavaMail.root@starpower.net> Message-ID: <643e5400-a263-2acf-5f3b-833026e5ebb8@foothill.net> In the mid-60's, on the other side of the planet, we ran missions putting a transportable TACAN on the air for as long as the JP-4 for the 400 Hz turbine alternators lasted [~10-15 days].? Then, we piled all the gear on top, several thermite packs on that, and pulled the tapes.? It reduced EVERYTHING to molten slag ... sadly including two brand new KWM-2A's each time. [:=(((( 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/5/2020 11:13 AM, donovanf at starpower.net wrote: > Hey Jim, > > > If you think Cad-Welding a ground rod is fun to watch, take a look at > thermite welding of railroad tracks: > > > www.youtube.com/watch?v=5uxsFglz2ig > > > 73 > Frank > W3LPL > > From tberry1 at triad.rr.com Fri Jun 5 15:00:36 2020 From: tberry1 at triad.rr.com (Tom Berry) Date: Fri, 5 Jun 2020 15:00:36 -0400 Subject: [Elecraft] KPA500 Dead In-Reply-To: <36a95c91-1640-9646-e0ca-b201198a9b03@blomand.net> References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> <36a95c91-1640-9646-e0ca-b201198a9b03@blomand.net> Message-ID: On 6/5/2020 2:41 PM, Bob McGraw K4TAX wrote: > You say you checked the "fuse" and it is OK.?? In fact, there are two > fuses.? If either has failed the amp won't power on.?? Then check the > voltage at the outlet from where the amp is powered. > > If you don't know where to start looking,.........if the above two > items are OK, then I suggest sending an e-mail to tech support at > Elecraft and ask for a RA.? Chances are the issue is beyond local > repair, either by knowledge or test equipment and parts. > > 73 > > Bob, K4TAX > Thanks Bob, I am sure you are correct.?? Just hate to send it off since I use it about every day.? I am retired and if I don't have any wife jobs then I'm on the radio. I have seen you give many good answers here. Thanks 73 Tom AA4VV From rmcgraw at blomand.net Fri Jun 5 15:01:36 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 5 Jun 2020 14:01:36 -0500 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> References: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> Message-ID: <9146e616-c3b0-9f9a-d4de-514a597cab0e@blomand.net> I agree with Jim, K9YC on this.? Grounding is for lightning protection.?? To be effective, it should be outside of the structure/house and be very low resistance.?? And all driven grounds must be bonded back to the AC Mains ground.? This is per NEC.? Your equipment, your house, and your life may depend on it being done correctly. Yes, the Cad-Weld fireworks are indeed impressive.?? And when finished one has a connection that will survive reliably underground for years and years.?? Where as a mechanical connection is only good for a few years and less if buried. Something about dissimilar metal chemical reaction. 73 Bob, K4TAX On 6/5/2020 1:07 PM, Jim Brown wrote: > On 6/5/2020 10:23 AM, Chris Waldrup wrote: >> This is probably overkill for QRP but I wanted to do it right like we >> used to do in broadcast. > > The primary purpose of grounding bonding has NOTHING to do with radio > -- it's for LIGHTNNG PROTECTION! > > > On 6/5/2020 10:46 AM, Walter Underwood wrote: > > Cad-weld seems a easier than the other approach described. It is > more robust against corrosion, plus it is fun. > > Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to > watch. :) > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From jtmiller47 at gmail.com Fri Jun 5 15:03:17 2020 From: jtmiller47 at gmail.com (Jim Miller) Date: Fri, 5 Jun 2020 15:03:17 -0400 Subject: [Elecraft] K3 with 2m internal transverter Message-ID: Helping a friend to try to get the most out of his 2m equipped K3 especially for EME. Is it recommended to use the internal preamp when the internal transverter is in use? I'm guessing "no" due to to 20db transverter RX gain. On page 21 of the P3 Owners Manual it describes the integration of the K3/P3 wrt attenuator and preamp settings. Does the K3 and P3 similarly communicate the additional 20db gain of the transverter and reflect that in a downward push of the P3 noise display? Thanks Jim ab3cv From jackbrindle at me.com Fri Jun 5 15:05:38 2020 From: jackbrindle at me.com (Jack Brindle) Date: Fri, 5 Jun 2020 12:05:38 -0700 Subject: [Elecraft] KPA500 Dead In-Reply-To: <36a95c91-1640-9646-e0ca-b201198a9b03@blomand.net> References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> <36a95c91-1640-9646-e0ca-b201198a9b03@blomand.net> Message-ID: <0546675A-CC6F-43C2-9E55-D5119EB6DCED@me.com> Actually four. There are two on the power supply board that protect the low voltage supply. Since the front panel appears not to be powering up, it is possible that one or both of these may be blown. I don?t really have any suggestions for what might be wrong, so the best thing to do is to contact customer support. They are still rather busy, so it might take a little while for them to get back to you, but I am sure they will be able to help. Good luck, and hope we can help you get your KPA500 back up and running quickly! 73, Jack, W6FB > On Jun 5, 2020, at 11:41 AM, Bob McGraw K4TAX wrote: > > You say you checked the "fuse" and it is OK. In fact, there are two fuses. If either has failed the amp won't power on. Then check the voltage at the outlet from where the amp is powered. > > If you don't know where to start looking,.........if the above two items are OK, then I suggest sending an e-mail to tech support at Elecraft and ask for a RA. Chances are the issue is beyond local repair, either by knowledge or test equipment and parts. > > 73 > > Bob, K4TAX > > > On 6/5/2020 11:04 AM, Tom Berry wrote: >> I was operating on FT8 20 meters for quite a long time with my KPA500 running about 400 watts and heard a few pops (like something arching). Heard it a few more times then the amp went off. >> >> Now it will not power on. No lights, nothing. I checked the fuse and it is OK. >> >> Can you tell me where to start looking? >> >> >> Thanks >> >> Tom AAA4VV >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From n4xy at comcast.net Fri Jun 5 15:28:40 2020 From: n4xy at comcast.net (Edward T. Tanton) Date: Fri, 5 Jun 2020 15:28:40 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <713159741.1960095.1591380816993.JavaMail.root@starpower.net> References: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> <713159741.1960095.1591380816993.JavaMail.root@starpower.net> Message-ID: <003a01d63b6f$854923e0$8fdb6ba0$@comcast.net> WOW!!! That was so-o-o neat!!! -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of donovanf at starpower.net Sent: Friday, June 05, 2020 2:14 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL ----- Original Message ----- From: "Jim Brown" To: elecraft at mailman.qth.net Sent: Friday, June 5, 2020 6:07:22 PM Subject: Re: [Elecraft] Self-fusing liquid electrical tape On 6/5/2020 10:23 AM, Chris Waldrup wrote: > This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n4xy at comcast.net From donwilh at embarqmail.com Fri Jun 5 15:35:51 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 5 Jun 2020 15:35:51 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> <7D5DE2CF-8AB4-4173-81C4-6644B483A87B@wunderwood.org> Message-ID: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> That is why I used the mechanical clamps. I have 10 ground rods for a perimeter ground wire around the house, 6 on the perimeter ground around the workshop building (where the antenna feedlines first enter) and another 4 in the antenna field. A total of 20 Cad Welds would have exceeded my budget - the #4 copper wire was expensive enough! All the clamps are above ground a bit, so I can check the tightness with a wrench at least once a year. In most cases, the perimeter wires are folded back on itself to fit into the clamp, so the wire is continuous rather than having cut ends. Yes, even the utility ground rod clamp is exposed. The building inspector frowned on it until I told him why and he allowed it because I do not (will not) mow grass near any of the ground rods. 73, Don W3FPR On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: > Just look at $11.00 per ground rod connection for Cad-Weld as compared > to? $1.98 for a mechanical clamp.?? Which do you think a ham will choose ? > From rmcgraw at blomand.net Fri Jun 5 15:44:39 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 5 Jun 2020 14:44:39 -0500 Subject: [Elecraft] K3 with 2m internal transverter In-Reply-To: References: Message-ID: <735bc7a0-99d3-5922-f62b-5b629259aba1@blomand.net> While I use an external transverter with my K3S, I do not suggest using the K3 internal preamp.? The transverter has adequate gain and also a good low noise front end. 73 Bob, K4TAX On 6/5/2020 2:03 PM, Jim Miller wrote: > Helping a friend to try to get the most out of his 2m equipped K3 > especially for EME. > > Is it recommended to use the internal preamp when the internal > transverter is in use? I'm guessing "no" due to to 20db transverter RX > gain. > > On page 21 of the P3 Owners Manual it describes the integration of the > K3/P3 wrt attenuator and preamp settings. Does the K3 and P3 similarly > communicate the additional 20db gain of the transverter and reflect > that in a downward push of the P3 noise display? > > Thanks > > Jim ab3cv > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net > From ny9h at arrl.net Fri Jun 5 15:59:45 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Fri, 5 Jun 2020 15:59:45 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> <7D5DE2CF-8AB4-4173-81C4-6644B483A87B@wunderwood.org> Message-ID: <18ba5b35-1ff1-33bb-5731-3b6ce726c789@arrl.net> 1 TOWER?? 6000-20 k? ??? 1HOLE? WITH CONCRETE $1000 HUNDREDS OF FEET OF LMR 600?? ,? RG213?? ETC 4 ANTENNAS??? $1600 ROTOR? 1600 cadwelds for the 9 10 BURIED ground rods....at the tower?? and few more at the house MUST be in the budget. why stray from a great job for a few hundred bucks.?? CADWELD. On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: > Just look at $11.00 per ground rod connection for Cad-Weld as compared > to? $1.98 for a mechanical clamp.?? Which do you think a ham will > choose ? > ered to ny9h at arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From W2xj at w2xj.net Fri Jun 5 16:09:20 2020 From: W2xj at w2xj.net (W2xj) Date: Fri, 5 Jun 2020 16:09:20 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> References: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> Message-ID: <728C0F98-FAA6-4A22-8CDF-2560F2D42653@w2xj.net> To my mind, false economy. Sent from my iPad > On Jun 5, 2020, at 3:36 PM, Don Wilhelm wrote: > > ? > That is why I used the mechanical clamps. I have 10 ground rods for a perimeter ground wire around the house, 6 on the perimeter ground around the workshop building (where the antenna feedlines first enter) and another 4 in the antenna field. A total of 20 Cad Welds would have exceeded my budget - the #4 copper wire was expensive enough! > All the clamps are above ground a bit, so I can check the tightness with a wrench at least once a year. > In most cases, the perimeter wires are folded back on itself to fit into the clamp, so the wire is continuous rather than having cut ends. > Yes, even the utility ground rod clamp is exposed. The building inspector frowned on it until I told him why and he allowed it because I do not (will not) mow grass near any of the ground rods. > > 73, > Don W3FPR > >> On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: >> Just look at $11.00 per ground rod connection for Cad-Weld as compared to $1.98 for a mechanical clamp. Which do you think a ham will choose ? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net From ac5p at sbcglobal.net Fri Jun 5 16:20:37 2020 From: ac5p at sbcglobal.net (Mike Maloney) Date: Fri, 5 Jun 2020 20:20:37 +0000 (UTC) Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <728C0F98-FAA6-4A22-8CDF-2560F2D42653@w2xj.net> References: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> <728C0F98-FAA6-4A22-8CDF-2560F2D42653@w2xj.net> Message-ID: <463420599.2402738.1591388437286@mail.yahoo.com> Don,? ?Are those all 8 ft ground rods driven vertical in ground without help from a rock drill?? ?Lots of rock in your area???Mike AC5P On Friday, June 5, 2020, 03:10:11 PM CDT, W2xj wrote: To my mind, false economy. Sent from my iPad > On Jun 5, 2020, at 3:36 PM, Don Wilhelm wrote: > > ? > That is why I used the mechanical clamps.? I have 10 ground rods for a perimeter ground wire around the house, 6 on the perimeter ground around the workshop building (where the antenna feedlines first enter) and another 4 in the antenna field.? A total of 20 Cad Welds would have exceeded my budget - the #4 copper wire was expensive enough! > All the clamps are above ground a bit, so I can check the tightness with a wrench at least once a year. > In most cases, the perimeter wires are folded back on itself to fit into the clamp, so the wire is continuous rather than having cut ends. > Yes, even the utility ground rod clamp is exposed.? The building inspector frowned on it until I told him why and he allowed it because I do not (will not) mow grass near any of the ground rods. > > 73, > Don W3FPR > >> On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: >> Just look at $11.00 per ground rod connection for Cad-Weld as compared to? $1.98 for a mechanical clamp.? Which do you think a ham will choose ? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ac5p at sbcglobal.net From byron at n6nul.org Fri Jun 5 16:20:58 2020 From: byron at n6nul.org (Byron Servies) Date: Fri, 5 Jun 2020 13:20:58 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <7D5DE2CF-8AB4-4173-81C4-6644B483A87B@wunderwood.org> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> <7D5DE2CF-8AB4-4173-81C4-6644B483A87B@wunderwood.org> Message-ID: It sure is! This was my first one, so I didn't really know what to expect. I was a bit more casual with the rest, I admit: https://youtu.be/j3MwokpxSco On Fri, Jun 5, 2020 at 10:48 AM Walter Underwood wrote: > > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. 73, Byron N6NUL -- - Northern California Contest Club - CU in the Cal QSO Party 3-4 Oct 2020 - www.cqp.org From tony.kaz at verizon.net Fri Jun 5 16:28:43 2020 From: tony.kaz at verizon.net (tony.kaz at verizon.net) Date: Fri, 5 Jun 2020 16:28:43 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <665b5cb3-049b-4ded-b0f9-7f0fb66027b8@www.fastmail.com> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> <665b5cb3-049b-4ded-b0f9-7f0fb66027b8@www.fastmail.com> Message-ID: <0d1101d63b77$e8895670$b99c0350$@verizon.net> All my ground rods are below ground level. I didn't want to take a chance of failure so used 23 one-shots with #4 solid copper wire. Maybe that is one of the reasons why I get away with never unhooking coax even when I watch lightning strike the tower. One point ground for everything, lightning arrestors on every coax and control line to the house, bonding the shield of all coax to the base of the tower probably helps too. 73, N2TK, Tony -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Art Greenberg Sent: Friday, June 5, 2020 1:41 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape Yeah, maybe I'm one of the exceptions. I just used 20 of them to build a lightning ground system for a new tower install. Easy to use and considerable peace of mind knowing the joints created will last a long time underground. -- Art Greenberg WA2LLN art at artg.tv On Fri, Jun 5, 2020, at 13:32, Phil Kane wrote: > On 6/5/2020 9:05 AM, Grant Youngman wrote: > > > Cad-weld isn?t expensive ? $11-15 per weld depending on where you > > buy the stuff. Typically sold in kits of 6 one-shot crucibles, and > > available for varying ground wire sizes on 1/2? or 5/8? ground rods. > > Agreed, but how many of us would go through that exercise? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to art at artg.tv ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tony.kaz at verizon.net From donwilh at embarqmail.com Fri Jun 5 16:50:03 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 5 Jun 2020 16:50:03 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <463420599.2402738.1591388437286@mail.yahoo.com> References: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> <728C0F98-FAA6-4A22-8CDF-2560F2D42653@w2xj.net> <463420599.2402738.1591388437286@mail.yahoo.com> Message-ID: <84d496f3-0b33-45e3-7257-eb236b4500b0@embarqmail.com> Mike, They are all 8 foot rods and were driven vertically with a fence post driver and then finished off with a sledge. I was 20 years younger at that time, I could not do it today.? 3 or 4 rods in a day was all the shoulders could manage. Yes, we hit some small rocks, but they will split is hammered on enough. We did not encounter large rocks when digging the house foundation or the trenches for the ground source heat pump - so it is not too rocky where we are - fist sized at the largest. 73, Don W3FPR On 6/5/2020 4:20 PM, Mike Maloney wrote: > Don,? ?Are those all 8 ft ground rods driven vertical in ground > without help from a rock drill?? ?Lots of rock in your area? > Mike AC5P > > From rick.nk7i at gmail.com Fri Jun 5 16:56:07 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Fri, 5 Jun 2020 13:56:07 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <5a115871-a575-9e21-f185-df5f965d8b6a@kanafi.org> Message-ID: <4e15a8c7-08f9-6a2f-eec9-ed81423e306e@gmail.com> Or expense?? Lessee... 20 (ground rods including 5 at the tower) times $4 per clamp, vs $11-15 for little discernible gains.. adding over $300 in my grounding solution.? Not a huge amount, but those costs add up quickly.? I went with clamps, all buried below grade. I opted to tie the shop (barn) panel rod to the tower and the house panel rod and have a single run out into a field for future (RX antenna) use (and simply more earth contact to dissipate). The copper wire was the cheapest element in play. Rick NK7I On 6/5/2020 10:32 AM, Phil Kane wrote: > On 6/5/2020 9:05 AM, Grant Youngman wrote: > >> Cad-weld isn?t expensive ? $11-15 per weld depending on where you buy >> the stuff. Typically sold in kits of 6 one-shot crucibles, and >> available for varying ground wire sizes on 1/2? or 5/8? ground rods. > Agreed, but how many of us would go through that exercise? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rick.nk7i at gmail.com From tony.kaz at verizon.net Fri Jun 5 16:54:36 2020 From: tony.kaz at verizon.net (tony.kaz at verizon.net) Date: Fri, 5 Jun 2020 16:54:36 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <713159741.1960095.1591380816993.JavaMail.root@starpower.net> References: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> <713159741.1960095.1591380816993.JavaMail.root@starpower.net> Message-ID: <0ded01d63b7b$866265a0$932730e0$@verizon.net> Now that was cool. Actually very hot ? N2TK, Tony -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of donovanf at starpower.net Sent: Friday, June 5, 2020 2:14 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape Hey Jim, If you think Cad-Welding a ground rod is fun to watch, take a look at thermite welding of railroad tracks: www.youtube.com/watch?v=5uxsFglz2ig 73 Frank W3LPL ----- Original Message ----- From: "Jim Brown" To: elecraft at mailman.qth.net Sent: Friday, June 5, 2020 6:07:22 PM Subject: Re: [Elecraft] Self-fusing liquid electrical tape On 6/5/2020 10:23 AM, Chris Waldrup wrote: > This is probably overkill for QRP but I wanted to do it right like we used to do in broadcast. The primary purpose of grounding bonding has NOTHING to do with radio -- it's for LIGHTNNG PROTECTION! On 6/5/2020 10:46 AM, Walter Underwood wrote: > Cad-weld seems a easier than the other approach described. It is more robust against corrosion, plus it is fun. Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to watch. :) 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tony.kaz at verizon.net From k2asp at kanafi.org Fri Jun 5 17:02:51 2020 From: k2asp at kanafi.org (Phil Kane) Date: Fri, 5 Jun 2020 14:02:51 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <9146e616-c3b0-9f9a-d4de-514a597cab0e@blomand.net> References: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> <9146e616-c3b0-9f9a-d4de-514a597cab0e@blomand.net> Message-ID: <05eeed14-2a57-33b1-8158-7648a371136f@kanafi.org> On 6/5/2020 12:01 PM, Bob McGraw K4TAX wrote: > I agree with Jim, K9YC on this.? Grounding is for lightning > protection.?? To be effective, it should be outside of the > structure/house and be very low resistance.?? And all driven grounds > must be bonded back to the AC Mains ground.? This is per NEC.? Your > equipment, your house, and your life may depend on it being done correctly. Another thing that we do is to bond all of the ground rods in an outside ring which is buried in a trench filled with conductive concrete. A layer of the concrete, than the ground ring, and then another layer of that concrete. Expensive? You betcha, but cheap insurance for sites costing well over a million dollars just for the infrastructure. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From km6cq at km6cq.com Fri Jun 5 17:22:14 2020 From: km6cq at km6cq.com (Dan Baker) Date: Fri, 5 Jun 2020 14:22:14 -0700 Subject: [Elecraft] This morning. Message-ID: This mornings setup. https://youtu.be/yvPY6I6Uk0Y -- Sent from my iPhone X From Lyn at LNAINC.com Fri Jun 5 17:39:26 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Fri, 5 Jun 2020 16:39:26 -0500 Subject: [Elecraft] KPA500 Dead In-Reply-To: References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> Message-ID: <013201d63b81$c9870f60$5c952e20$@LNAINC.com> Tom - I had the same experience a few months back. I talked with Elecraft Support, and they had me check a few things. There was no obvious cause, except the power supply board was dead. They asked me to send it in, which I did, and they replaced the board. Fortunately I got it back a couple days before the COVID shutdown hit, and it has been fine since. As a precautionary move, they changed the power transformer back to the default setting. I had set it up one notch because our line voltage is low, and that was needed to get it "near" the optimal value. I also have tuner (KAT500) issues, but will live with it, as I am reluctant to send anything anywhere at this time. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Tom Berry Sent: Friday, June 05, 2020 11:05 AM To: elecraft at mailman.qth.net Subject: [Elecraft] KPA500 Dead I was operating on FT8 20 meters for quite a long time with my KPA500 running about 400 watts and heard a few pops (like something arching). Heard it a few more times then the amp went off. Now it will not power on. No lights, nothing. I checked the fuse and it is OK. Can you tell me where to start looking? Thanks Tom AAA4VV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From k7rxv at comcast.net Fri Jun 5 17:41:16 2020 From: k7rxv at comcast.net (Roger Steyaert) Date: Fri, 5 Jun 2020 17:41:16 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <463420599.2402738.1591388437286@mail.yahoo.com> References: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> <728C0F98-FAA6-4A22-8CDF-2560F2D42653@w2xj.net> <463420599.2402738.1591388437286@mail.yahoo.com> Message-ID: <439f5b40-233b-b08b-0ee3-dec891cb8443@comcast.net> I have 12 ground rods in the ring ground system around my house with the radios in one room inside. the ground rods are all tied to each other and the power ground. I agree the Cad welds can get expensive, that is why I high temperature silver soldered the wire and ground rods together. Not normal soft solder but the high strength, high temperature silver solder used in HVAC systems. This requires a acetylene torch to do the soldering with. this accomplishes the same thing that a CAD weld provides but with less cost if you have gas welding equipment available. What ever you do make sure the system will maintain very good connections over time or you are just giveng yourself a false sense of security that can be very costly both in money and safety over time. Roger K7RXV On 6/5/2020 4:20 PM, Mike Maloney wrote: > Don,? ?Are those all 8 ft ground rods driven vertical in ground without help from a rock drill?? ?Lots of rock in your area???Mike AC5P > On Friday, June 5, 2020, 03:10:11 PM CDT, W2xj wrote: > > To my mind, false economy. > > Sent from my iPad > >> On Jun 5, 2020, at 3:36 PM, Don Wilhelm wrote: >> >> ? >> That is why I used the mechanical clamps.? I have 10 ground rods for a perimeter ground wire around the house, 6 on the perimeter ground around the workshop building (where the antenna feedlines first enter) and another 4 in the antenna field.? A total of 20 Cad Welds would have exceeded my budget - the #4 copper wire was expensive enough! >> All the clamps are above ground a bit, so I can check the tightness with a wrench at least once a year. >> In most cases, the perimeter wires are folded back on itself to fit into the clamp, so the wire is continuous rather than having cut ends. >> Yes, even the utility ground rod clamp is exposed.? The building inspector frowned on it until I told him why and he allowed it because I do not (will not) mow grass near any of the ground rods. >> >> 73, >> Don W3FPR >> >>> On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: >>> Just look at $11.00 per ground rod connection for Cad-Weld as compared to? $1.98 for a mechanical clamp.? Which do you think a ham will choose ? >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w2xj at w2xj.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ac5p at sbcglobal.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7rxv at comcast.net From k7rxv at comcast.net Fri Jun 5 17:47:45 2020 From: k7rxv at comcast.net (Roger Steyaert) Date: Fri, 5 Jun 2020 17:47:45 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <84d496f3-0b33-45e3-7257-eb236b4500b0@embarqmail.com> References: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> <728C0F98-FAA6-4A22-8CDF-2560F2D42653@w2xj.net> <463420599.2402738.1591388437286@mail.yahoo.com> <84d496f3-0b33-45e3-7257-eb236b4500b0@embarqmail.com> Message-ID: <4aee141a-8641-2ccb-a2f6-d0dd95ab1f5c@comcast.net> A way for us no longer young people to drive ground rods is with a SDS construction hammer and a ground rod driving bit. that is what electricians use. I have a layer of shale about 2 feet deep where I live and it takes less that 10 minutes per 8 foot ground rod driven below the surface with this method. You can get the equipment to do this at most tool rental places if you don't have your own. The driver bit for the tool is less very inexpensive at stores such as Lowes. Roger K7RXV On 6/5/2020 4:50 PM, Don Wilhelm wrote: > Mike, > > They are all 8 foot rods and were driven vertically with a fence post > driver and then finished off with a sledge. > I was 20 years younger at that time, I could not do it today.? 3 or 4 > rods in a day was all the shoulders could manage. > Yes, we hit some small rocks, but they will split is hammered on enough. > We did not encounter large rocks when digging the house foundation or > the trenches for the ground source heat pump - so it is not too rocky > where we are - fist sized at the largest. > > 73, > Don W3FPR > > On 6/5/2020 4:20 PM, Mike Maloney wrote: >> Don,? ?Are those all 8 ft ground rods driven vertical in ground >> without help from a rock drill?? ?Lots of rock in your area? >> Mike AC5P >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7rxv at comcast.net From n6kr at elecraft.com Fri Jun 5 17:51:55 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Fri, 5 Jun 2020 14:51:55 -0700 Subject: [Elecraft] This morning. In-Reply-To: References: Message-ID: <0240AED3-8416-4901-9501-30EF0393F470@elecraft.com> Well, Dan, now you've gone and done it. I'm going to have to escape the lab to do a little /PM outing with the KX2. Also a bit jealous of your RV :) Wayne N6KR > On Jun 5, 2020, at 2:22 PM, Dan Baker wrote: > > This mornings setup. > > https://youtu.be/yvPY6I6Uk0Y > > -- > Sent from my iPhone X > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From donwilh at embarqmail.com Fri Jun 5 18:00:45 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 5 Jun 2020 18:00:45 -0400 Subject: [Elecraft] KPA500 Dead In-Reply-To: <013201d63b81$c9870f60$5c952e20$@LNAINC.com> References: <4F5571C5.50905@km5ps.com> <1545229805572-0.post@n2.nabble.com> <237d8dcc-ce28-30a5-a56a-280a7a68a4af@embarqmail.com> <5c1a5b7e.1c69fb81.7a6a.bd36@mx.google.com> <2eb07792-099d-48a6-fce5-070b0c1315c3@embarqmail.com> <5c1a5ec0.1c69fb81.4bf13.0ec0@mx.google.com> <013201d63b81$c9870f60$5c952e20$@LNAINC.com> Message-ID: Lyn, On your KAT500, do contact support about it, and if they want you to send it in, do so. Many techs are working from home, and while the time from receipt at Elecraft until it is shipped may be longer, the process still is working. Who knows when this coronavirus thing will subside and things will get fully back to normal and full in-office staffing, but Elecraft is 'limping along' to support customers. 73, Don W3FPR On 6/5/2020 5:39 PM, Lyn Norstad wrote: > Tom - > > I had the same experience a few months back. I talked with Elecraft Support, and they had me check a few things. There was no obvious cause, except the power supply board was dead. > > They asked me to send it in, which I did, and they replaced the board. Fortunately I got it back a couple days before the COVID shutdown hit, and it has been fine since. > > As a precautionary move, they changed the power transformer back to the default setting. I had set it up one notch because our line voltage is low, and that was needed to get it "near" the optimal value. > > I also have tuner (KAT500) issues, but will live with it, as I am reluctant to send anything anywhere at this time. From dave at nk7z.net Fri Jun 5 19:06:57 2020 From: dave at nk7z.net (Dave Cole) Date: Fri, 5 Jun 2020 16:06:57 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> Message-ID: <74e3e6e0-be67-f1a3-380f-5886f30a52da@nk7z.net> Huh? I don't sell them... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/5/20 10:53 AM, Jim Brown wrote: > On 6/5/2020 8:17 AM, Phil Kane wrote: >> For our commercial and public safety >> communication site grounding systems our firm insists on cad-weld at all >> exposed and buried connection points but I would suspect that very few >> hams, let alone residential or even commercial electricians, would go to >> that length. > > It was years before I went from mechanical clamps to cadwelds. No > question that it's the way to go. Some are packaged much better than > others. I prefer the ones where the two powders are packaged separately. > NK7Z sells them. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net From dave at nk7z.net Fri Jun 5 19:14:34 2020 From: dave at nk7z.net (Dave Cole) Date: Fri, 5 Jun 2020 16:14:34 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <003a01d63b6f$854923e0$8fdb6ba0$@comcast.net> References: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> <713159741.1960095.1591380816993.JavaMail.root@starpower.net> <003a01d63b6f$854923e0$8fdb6ba0$@comcast.net> Message-ID: Anyone know what those green wires are on each RR cross tie? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/5/20 12:28 PM, Edward T. Tanton wrote: > WOW!!! That was so-o-o neat!!! > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of > donovanf at starpower.net > Sent: Friday, June 05, 2020 2:14 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Self-fusing liquid electrical tape > > Hey Jim, > > > If you think Cad-Welding a ground rod is fun to watch, take a look at > thermite welding of railroad tracks: > > > www.youtube.com/watch?v=5uxsFglz2ig > > > 73 > Frank > W3LPL > > ----- Original Message ----- > > From: "Jim Brown" > To: elecraft at mailman.qth.net > Sent: Friday, June 5, 2020 6:07:22 PM > Subject: Re: [Elecraft] Self-fusing liquid electrical tape > > On 6/5/2020 10:23 AM, Chris Waldrup wrote: >> This is probably overkill for QRP but I wanted to do it right like we used > to do in broadcast. > > The primary purpose of grounding bonding has NOTHING to do with radio -- > it's for LIGHTNNG PROTECTION! > > > On 6/5/2020 10:46 AM, Walter Underwood wrote: >> Cad-weld seems a easier than the other approach described. It is more > robust against corrosion, plus it is fun. > > Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to > watch. :) > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donovanf at starpower.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n4xy at comcast.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net > From k6dgw at foothill.net Fri Jun 5 19:21:13 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 5 Jun 2020 16:21:13 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: <0647c146-6e51-c775-be67-b535a8b22b39@audiosystemsgroup.com> <713159741.1960095.1591380816993.JavaMail.root@starpower.net> <003a01d63b6f$854923e0$8fdb6ba0$@comcast.net> Message-ID: <4ec04dbd-d577-d831-8655-e08050968722@foothill.net> I'm colorblind.? If you're talking about the doobers at the end of each tie over the foot of the rail, they're hold downs for the rails on concrete ties.? They take the place of spikes in wood ties whose purpose is to maintain proper separation ["gauge"] between the rails.? The rails stand up by themselves. On 6/5/2020 4:14 PM, Dave Cole wrote: > Anyone know what those green wires are on each RR cross tie? > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 6/5/20 12:28 PM, Edward T. Tanton wrote: >> WOW!!! That was so-o-o neat!!! >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of >> donovanf at starpower.net >> Sent: Friday, June 05, 2020 2:14 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Self-fusing liquid electrical tape >> >> Hey Jim, >> >> >> If you think Cad-Welding a ground rod is fun to watch, take a look at >> thermite welding of railroad tracks: >> >> >> www.youtube.com/watch?v=5uxsFglz2ig >> >> >> 73 >> Frank >> W3LPL >> >> ----- Original Message ----- >> >> From: "Jim Brown" >> To: elecraft at mailman.qth.net >> Sent: Friday, June 5, 2020 6:07:22 PM >> Subject: Re: [Elecraft] Self-fusing liquid electrical tape >> >> On 6/5/2020 10:23 AM, Chris Waldrup wrote: >>> This is probably overkill for QRP but I wanted to do it right like >>> we used >> to do in broadcast. >> >> The primary purpose of grounding bonding has NOTHING to do with radio -- >> it's for LIGHTNNG PROTECTION! >> >> >> On 6/5/2020 10:46 AM, Walter Underwood wrote: >>> Cad-weld seems a easier than the other approach described. It is more >> robust against corrosion, plus it is fun. >> >> Yes, it certainly is fun! I summoned my XYL and the neighbor's kid to >> watch. :) >> >> 73, Jim K9YC >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to donovanf at starpower.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n4xy at comcast.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to dave at nk7z.net >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k6dgw at foothill.net From indians at xsmail.com Fri Jun 5 19:32:27 2020 From: indians at xsmail.com (Petr, OK1RP/M0SIS) Date: Fri, 5 Jun 2020 16:32:27 -0700 (MST) Subject: [Elecraft] [KX3] LCD brightness setting Message-ID: <1591399947808-0.post@n2.nabble.com> Hi all, so sorry to bother with that over here. I did not found it in manual so I am trying to ask... Can someone let me guide how to change the LCD brightness on KX3 please? I do not means LCD backlight and I do not means LED brightness... Thanks, Petr ----- 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ From richgilley123 at gmail.com Fri Jun 5 19:44:17 2020 From: richgilley123 at gmail.com (richard gilley) Date: Fri, 5 Jun 2020 19:44:17 -0400 Subject: [Elecraft] KX3/PX3/KXPA100 for sale In-Reply-To: References: Message-ID: <12FA2751-219F-41F1-A942-45C61AA570E1@gmail.com> HI, Due to the limited interest I have have decided not offer my KX3 equipment for sale at this time. Sincerely R Gilley AD1G > On Jun 4, 2020, at 19:49, richard gilley wrote: > > HI, > I have a KX3 and PX3 with a KXPA100 available as a complete set up. Purchased September 2018. > All interconnect cables, manuals, and two F. Cady publications. I am a CW op only, set up in shack only, never traveled. > > For photos, details please contact me at "richgilley123 at gmail.com ." > > I am asking $2500.00, includes shipping USPS, CONUS. Bank check preferred. > > Thank you for your attention. > > R Gilley > AD1G From rich at wc3t.us Fri Jun 5 20:27:02 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Fri, 5 Jun 2020 20:27:02 -0400 Subject: [Elecraft] [KX3] LCD brightness setting In-Reply-To: <1591399947808-0.post@n2.nabble.com> References: <1591399947808-0.post@n2.nabble.com> Message-ID: LCDs are ?on? or ?off.? All they do is turn the substrate opaque. The backlight heightens this contrast but you specifically aren?t asking about the backlight. Possibly applying more voltage to the sense inputs may make the contrast darker, but they may also smoke the display which could ruin your day. And there are no menu options other than backlight toggle as far as I can see. On Fri, Jun 5, 2020 at 19:32 Petr, OK1RP/M0SIS wrote: > Hi all, > > so sorry to bother with that over here. > I did not found it in manual so I am trying to ask... > Can someone let me guide how to change the LCD brightness on KX3 please? > I do not means LCD backlight and I do not means LED brightness... > > Thanks, Petr > > > > ----- > 73 - Petr, OK1RP > "Apple & Elecraft freak" > B:http://ok1rp.blogspot.com > MeWe: https://bit.ly/2HGPoDx > MeWe: https://bit.ly/2FmwvDt > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rich at wc3t.us > -- 72, Rich Hurd / WC3T / DMR: 3142737 Northampton County RACES, EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 (40?45.68' N 75?17.33' W) Grid: *FN20is* From w6ya at cox.net Fri Jun 5 22:20:04 2020 From: w6ya at cox.net (Jim McCook) Date: Sat, 6 Jun 2020 02:20:04 +0000 Subject: [Elecraft] K3 Spontaneous Failure Message-ID: <334b6d8b-df3b-7764-4ce7-71e355771a00@cox.net> Tonight my K-3 failed after being on for about an hour when I was away.It displays ERR EE2.When powered on again the same ERR EE2 is displayed.Tapping any button on the radio brings up a different error message, such as DS1, FPF LOAD PENDING, BP1, LPF, IO3, IF1, and on and on.Firmware reload is not possible. I sent Elecraft a support message and will call Monday, assuming I will have to ship it for repair.Has anyone seen this type of failure?Jim W6YA From jim at audiosystemsgroup.com Fri Jun 5 22:22:53 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 5 Jun 2020 19:22:53 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <74e3e6e0-be67-f1a3-380f-5886f30a52da@nk7z.net> References: <1727dcfec70.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <6903529a-21d9-45b2-f2a3-6077c94114de@kanafi.org> <172829a4d90.285d.04e9838cc20bde95fd8041c77455cd8f@comcast.net> <74e3e6e0-be67-f1a3-380f-5886f30a52da@nk7z.net> Message-ID: <622e98fc-a7f4-54f0-c53d-b8b48605a961@audiosystemsgroup.com> Brain cramp -- I meant KF7P. 73, Jim K9YC On 6/5/2020 4:06 PM, Dave Cole wrote: > Huh?? I don't sell them... > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 6/5/20 10:53 AM, Jim Brown wrote: >> On 6/5/2020 8:17 AM, Phil Kane wrote: >>> For our commercial and public safety >>> communication site grounding systems our firm insists on cad-weld at all >>> exposed and buried connection points but I would suspect that very few >>> hams, let alone residential or even commercial electricians, would go to >>> that length. >> >> It was years before I went from mechanical clamps to cadwelds. No >> question that it's the way to go. Some are packaged much better than >> others. I prefer the ones where the two powders are packaged >> separately. NK7Z sells them. >> From jim at audiosystemsgroup.com Fri Jun 5 22:31:54 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 5 Jun 2020 19:31:54 -0700 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <439f5b40-233b-b08b-0ee3-dec891cb8443@comcast.net> References: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> <728C0F98-FAA6-4A22-8CDF-2560F2D42653@w2xj.net> <463420599.2402738.1591388437286@mail.yahoo.com> <439f5b40-233b-b08b-0ee3-dec891cb8443@comcast.net> Message-ID: I spent a summer during my college years silver-soldering 120 radials to ground screens for each of the 4-tower array of WSAZ. 73, Jim K9YC On 6/5/2020 2:41 PM, Roger Steyaert wrote: > that is why I high temperature silver soldered the wire and ground rods > together. Not normal soft solder but the high strength, high temperature > silver solder used in HVAC systems. This requires a acetylene torch to > do the soldering with. this accomplishes the same thing that a CAD weld > provides but with less cost if you have gas welding equipment available. From W2xj at w2xj.net Fri Jun 5 22:41:52 2020 From: W2xj at w2xj.net (W2xj) Date: Fri, 5 Jun 2020 22:41:52 -0400 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: References: Message-ID: <392DE1FC-A017-4503-B14E-3505D7977FAE@w2xj.net> try a 10 tower array. :-) Sent from my iPad > On Jun 5, 2020, at 10:33 PM, Jim Brown wrote: > > ?I spent a summer during my college years silver-soldering 120 radials to ground screens for each of the 4-tower array of WSAZ. > > 73, Jim K9YC > >> On 6/5/2020 2:41 PM, Roger Steyaert wrote: >> that is why I high temperature silver soldered the wire and ground rods together. Not normal soft solder but the high strength, high temperature silver solder used in HVAC systems. This requires a acetylene torch to do the soldering with. this accomplishes the same thing that a CAD weld provides but with less cost if you have gas welding equipment available. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net From ted.roycraft at gmail.com Sat Jun 6 00:05:09 2020 From: ted.roycraft at gmail.com (Ted Roycraft) Date: Sat, 6 Jun 2020 00:05:09 -0400 Subject: [Elecraft] K3 Spontaneous Failure In-Reply-To: <334b6d8b-df3b-7764-4ce7-71e355771a00@cox.net> References: <334b6d8b-df3b-7764-4ce7-71e355771a00@cox.net> Message-ID: <0664fe32-2e3a-7562-6860-578ff64c0bd4@gmail.com> Jim, The K3 manual downloaded tonight, on page 69 says ... ====================================================================================================================== ERR EE2 ============== External EEPROM read/write test failed ================ EEPROM may be defective (front panel). However, this message may also appear if power is turned off/on too rapidly, or if the power supply voltage ?bounces? during turn-on due to inadequate regulation. If the power supply is not at fault, try re-loading MCU firmware first; then try initializing parameters (pg. 66). ======================================================================================================================== Hope this helps. 73, Ted, W2ZK On 6/5/2020 22:20, Jim McCook wrote: > Tonight my K-3 failed after being on for about an hour when I was > away.It displays ERR EE2.When powered on again the same ERR EE2 is > displayed.Tapping any button on the radio brings up a different error > message, such as DS1, FPF LOAD PENDING, BP1, LPF, IO3, IF1, and on and > on.Firmware reload is not possible. I sent Elecraft a support message > and will call Monday, assuming I will have to ship it for repair.Has > anyone seen this type of failure?Jim W6YA > -------------------------------------------------------------------------------------------------------------- > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ted.roycraft at gmail.com From donovanf at starpower.net Sat Jun 6 00:26:38 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Sat, 6 Jun 2020 00:26:38 -0400 (EDT) Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <00f801d63b54$3116ae70$93440b50$@w2irt.net> Message-ID: <22073776.2127717.1591417598509.JavaMail.root@starpower.net> Cold shrink tubing is widely available on eBay, usually about ten dollars each ----- Original Message ----- From: "Peter Dougherty" To: donovanf at starpower.net, "Elecraft Reflector" Sent: Friday, June 5, 2020 4:13:03 PM Subject: RE: [Elecraft] FIXED--was NOT the feedline First time I've ever heard of this product and it's quite intriguing. Where is this available from in quantities a typical home station would use? I go through a 3 foot section of .75" marine grade heat shrink in about 3-5 years. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of donovanf at starpower.net Sent: Friday, June 5, 2020 2:03 AM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline This is an interesting video demonstrating the relative benefits of heat shrink and cold shrink tubing www.youtube.com/watch?v=wSOXfkB6Jgw 73 Frank W3LPL ----- Original Message ----- From: "Peter Dougherty" To: "Edward R Cole" , "Elecraft Reflector" Sent: Thursday, June 4, 2020 3:01:59 PM Subject: Re: [Elecraft] FIXED--was NOT the feedline Ed, this is the stuff I use on my outdoor connectors: https://tinyurl.com/y7uqqwsb Marine grade adhesive lined. 3/4" for plain ol' PL259 connections, and 1" for N connectors. And I mis-spoke (mis-typed??) earlier. Had a senior moment when I said Scotch 130 and Scotch 88 was my default. That HAD BEEN my default. My new default from about 3 or 4 years ago is Scotch 130 and this heat shrink if it's in the air, and just the marine grade heat shrink if it's at ground level. I find this combination to be unbeatable. - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Edward R Cole Sent: Thursday, June 4, 2020 3:36 AM To: Elecraft Reflector Subject: Re: [Elecraft] FIXED--was NOT the feedline Some large coax connectors are supplied with heat shrink that has a melted inner "goo" which is very good sealant. I've found removal is not messy so apparently the "goo" cures in some manner. Pretty sure you can buy it at commercial electrical suppliers (but probably in 4-foot chunks which will cost you). I buy my ordinary heat shrink and tywraps (Thomas & Betts) from a local commercial electrical supply house. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From w6ya at cox.net Sat Jun 6 00:33:03 2020 From: w6ya at cox.net (Jim McCook) Date: Sat, 6 Jun 2020 04:33:03 +0000 Subject: [Elecraft] K3 Spontaneous Failure Message-ID: <57bfc2f0-86e9-2df1-cfa7-e3af0a647f81@cox.net> Ted, thanks for the note.? I checked the error list immediately after the failure and thought about that EPROM failure as a possibility.? The power supply is fine.? The radio had been powered up and failed while I had dinner.? I know there are some pin connectors to the front panel that could be the problem, but I don't want to attempt to pull it off, so will probably wind up sending it to the EC hospital for a general face lift in addition to the fix unless there is a simple fix.? I doubt one exists.? Thanks, Jim From w4sc at windstream.net Sat Jun 6 00:59:21 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 6 Jun 2020 00:59:21 -0400 Subject: [Elecraft] K3 Spontaneous Failure Message-ID: Jim, 1) Try an EEINIT ref pp66 of K3 owners manual rev D10. 2) Try to force a firmware down load, ref pp45 of K3 owners manual rev D10. 73 de Ben W4SC Sent from Mail for Windows 10 From ghyoungman at gmail.com Sat Jun 6 00:58:42 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sat, 6 Jun 2020 00:58:42 -0400 Subject: [Elecraft] FIXED--was NOT the feedline In-Reply-To: <22073776.2127717.1591417598509.JavaMail.root@starpower.net> References: <22073776.2127717.1591417598509.JavaMail.root@starpower.net> Message-ID: <1446C08E-B206-40E2-8458-197A15314C6E@gmail.com> The only thing that would concern me about buying this (NOS) material of unknown date of manufacture from eBay is that it does have a shelf life of 5 years in its pre-stretched state when properly stored (50-80 deg F at less than 75% relative humidity). If it?s been stored in someone?s hot humid garage or been rattling around in a tool box in a pickup bed in the sun for a couple of years before it hits the auction site, there?s no telling. I suspect at some point it won?t shrink as much as the specification. But it is less expensive from most sellers than the retail pricing. Grant NQ5T > On Jun 6, 2020, at 12:26 AM, donovanf at starpower.net wrote: > > Cold shrink tubing is widely available on eBay, usually about ten dollars each > > ----- Original Message ----- > From hs0zed at gmail.com Sat Jun 6 01:41:31 2020 From: hs0zed at gmail.com (Martin Sole) Date: Sat, 6 Jun 2020 12:41:31 +0700 Subject: [Elecraft] K3 tx power troubles In-Reply-To: References: <7e46cc26-996e-73bc-527b-76c6b7ce8847@gmail.com> Message-ID: Hi Bill, I have the K3 working again, currently going great stuff on 10m to give it a good workout. Problem was one of those silly ones but also one that I have just recently read about on the reflector, the case of a loose TMP coax. In my case it turned out to be J7 on the KREF3 board. Martin, HS0ZED On 3/6/63 00:42, William Hammond wrote: > https://ftp.elecraft.com/K3/Manuals%20Downloads/E740182%20KPA3CONMDKT%20Instruction%20Manual.pdf > Instruction Manual.pdf> > > This describes the process... > > The parts needed are described on the first page of the document... > > 73, Bill-AK5X > >> On Jun 2, 2020, at 10:17 AM, Martin Sole > > wrote: >> >> My aging K3, S/N 298, is once again proving a little troublesome. >> Into a nice solid 50 ohm dummy load with a strong 14 volt supply and >> short thick cables never known to be an issue I see a maximum of >> about 10 watts out when set to 110 watts on the front panel. Starting >> at 0w it increases in line with the setting until about 3.5 watts. >> The LPA stops there and then when the KPA3 comes in it goes up to >> about 10 watts but beyond that no further increase. >> >> I presume this is a either a drive or and LPA issue but I suspect the >> actual cause might be well known here. What are the chances? >> >> >> Regards >> Martin, HS0ZED >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ak5x at mac.com > From indians at xsmail.com Sat Jun 6 05:15:01 2020 From: indians at xsmail.com (Petr, OK1RP/M0SIS) Date: Sat, 6 Jun 2020 02:15:01 -0700 (MST) Subject: [Elecraft] [KX3] LCD brightness setting In-Reply-To: References: <1591399947808-0.post@n2.nabble.com> Message-ID: <1591434901103-0.post@n2.nabble.com> Rich sorry for incorrect expression... What I am looking for is LCD viewing angle contrast setting (on K3 is it the Menu entry LCD ADJ) to adjust better reading the KX3 display from the top angle. Petr ----- 73 - Petr, OK1RP "Apple & Elecraft freak" B:http://ok1rp.blogspot.com MeWe: https://bit.ly/2HGPoDx MeWe: https://bit.ly/2FmwvDt -- Sent from: http://elecraft.365791.n2.nabble.com/ From ray2.s at btinternet.com Sat Jun 6 06:39:04 2020 From: ray2.s at btinternet.com (Ray Spreadbury) Date: Sat, 6 Jun 2020 11:39:04 +0100 Subject: [Elecraft] K3S dead after Attempted Firmware Update Message-ID: <017f01d63bee$b316cf00$19446d00$@btinternet.com> K3S # 1059x, Windows 10, I noticed there was a newer firmware update available and a newer Utility program. I downloaded the latest Utility & also downloaded the newest firmware files to the laptop & then attempted to connect with the K3S using the USB connection. It would not connect, but according to Device Manager the FTDI chip in the USB cable was working OK on COM3 but still no connection was made to the K3S. I then attempted to Force a Firmware Download as per the K3S Owner's Manual. I unplugged the radio, waited 5 seconds or so, plugged the power back in & held the POWER switch in for 10 seconds The TX LED started flashing continuously & I saw MCU LD on the LCD screen. I then attempted again to connect the K3S using the Utility program but no connection was able to be made. I switched off the power to the K3S & decided to try again. Now I can't switch the K3 ON or get back the flashing TX LED by holding in the POWER switch, its all just dead. I haven't tried the dreaded RESET as I don't think there is a saved Config file. What now, any ideas please? Ray G3XLG From k2vco.vic at gmail.com Sat Jun 6 09:13:49 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Sat, 6 Jun 2020 16:13:49 +0300 Subject: [Elecraft] K3 Spontaneous Failure In-Reply-To: <57bfc2f0-86e9-2df1-cfa7-e3af0a647f81@cox.net> References: <57bfc2f0-86e9-2df1-cfa7-e3af0a647f81@cox.net> Message-ID: <5530792f-e400-d93f-5843-56e5eb27382d@gmail.com> I would definitely try pulling the front panel off an then reinstalling it, possibly with a few drops of Deoxit on the pins. It isn't difficult at all, and I think it's worth a try. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 06/06/2020 7:33, Jim McCook wrote: > Ted, thanks for the note.? I checked the error list immediately after > the failure and thought about that EPROM failure as a possibility.? The > power supply is fine.? The radio had been powered up and failed while I > had dinner.? I know there are some pin connectors to the front panel > that could be the problem, but I don't want to attempt to pull it off, > so will probably wind up sending it to the EC hospital for a general > face lift in addition to the fix unless there is a simple fix.? I doubt > one exists.? Thanks, Jim From w6ya at cox.net Sat Jun 6 10:11:33 2020 From: w6ya at cox.net (Jim McCook) Date: Sat, 6 Jun 2020 14:11:33 +0000 Subject: [Elecraft] K3 Spontaneous Failure Message-ID: <2887ed1b-fa65-1538-9722-72c847f0085a@cox.net> Thanks to those who responded with good suggestions.? This morning I turned it on and saw a different set of error codes, but there was audio.? Powered off and on and saw MAIN freq display, but SUB had disappeared.? More power off/on resulted in going back to normal operation.? It has been fine for the last hour.? Will try the re initialization if it fails again. It may be the pins on front panel as some have suggested.? I hesitate to pull off the front panel, but will talk to a friend who assembled his K3 about that.? 73, Jim W6YA From donovanf at starpower.net Sat Jun 6 10:21:57 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Sat, 6 Jun 2020 10:21:57 -0400 (EDT) Subject: [Elecraft] K3 Spontaneous Failure In-Reply-To: <2887ed1b-fa65-1538-9722-72c847f0085a@cox.net> Message-ID: <312681259.2241513.1591453317507.JavaMail.root@starpower.net> Hi Jim, Simply disengaging and re-engaging the front panel connector several times will often resolve the intermittent connection temporarily. But it will come back... Send your radio in for repair before it becomes a hard fault. If you have the old unreliable front panel connectors, your radio surely needs some additional upgrades too. 73 Frank W3LPL ----- Original Message ----- From: "Jim McCook" To: "Elecraft Reflector" Sent: Saturday, June 6, 2020 2:11:33 PM Subject: Re: [Elecraft] K3 Spontaneous Failure Thanks to those who responded with good suggestions. This morning I turned it on and saw a different set of error codes, but there was audio. Powered off and on and saw MAIN freq display, but SUB had disappeared. More power off/on resulted in going back to normal operation. It has been fine for the last hour. Will try the re initialization if it fails again. It may be the pins on front panel as some have suggested. I hesitate to pull off the front panel, but will talk to a friend who assembled his K3 about that. 73, Jim W6YA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From rmcgraw at blomand.net Sat Jun 6 10:32:59 2020 From: rmcgraw at blomand.net (Bob McGraw) Date: Sat, 6 Jun 2020 09:32:59 -0500 Subject: [Elecraft] K3 Spontaneous Failure In-Reply-To: <2887ed1b-fa65-1538-9722-72c847f0085a@cox.net> References: <2887ed1b-fa65-1538-9722-72c847f0085a@cox.net> Message-ID: Sure sounds like dirty contacts related to the front panel.??? I would NOT try re-initialization without being sure the radio is working as it should and reliably.?? One could end up with more than one issue to deal with and diagnose. 73 Bob, K4TAX On 6/6/2020 9:11 AM, Jim McCook wrote: > Thanks to those who responded with good suggestions.? This morning I > turned it on and saw a different set of error codes, but there was > audio.? Powered off and on and saw MAIN freq display, but SUB had > disappeared.? More power off/on resulted in going back to normal > operation.? It has been fine for the last hour.? Will try the re > initialization if it fails again. It may be the pins on front panel as > some have suggested.? I hesitate to pull off the front panel, but will > talk to a friend who assembled his K3 about that. 73, Jim W6YA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net -- This email has been checked for viruses by AVG. https://www.avg.com From nr4c at widomaker.com Sat Jun 6 11:21:03 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 6 Jun 2020 11:21:03 -0400 Subject: [Elecraft] K3 Spontaneous Failure In-Reply-To: <2887ed1b-fa65-1538-9722-72c847f0085a@cox.net> References: <2887ed1b-fa65-1538-9722-72c847f0085a@cox.net> Message-ID: Yes Pull the front panel and clean pins with Deoxit and reassemble. Sent from my iPhone ...nr4c. bill > On Jun 6, 2020, at 10:13 AM, Jim McCook wrote: > > ?Thanks to those who responded with good suggestions. This morning I turned it on and saw a different set of error codes, but there was audio. Powered off and on and saw MAIN freq display, but SUB had disappeared. More power off/on resulted in going back to normal operation. It has been fine for the last hour. Will try the re initialization if it fails again. It may be the pins on front panel as some have suggested. I hesitate to pull off the front panel, but will talk to a friend who assembled his K3 about that. 73, Jim W6YA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From k2vco.vic at gmail.com Sat Jun 6 11:47:47 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Sat, 6 Jun 2020 18:47:47 +0300 Subject: [Elecraft] K3 Spontaneous Failure In-Reply-To: References: <2887ed1b-fa65-1538-9722-72c847f0085a@cox.net> Message-ID: Good advice. Don't do EEInit unless you are sure you have a good configuration backup. Given the state of the radio now, doing a backup might not give you good data. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 06/06/2020 17:32, Bob McGraw wrote: > Sure sounds like dirty contacts related to the front panel.??? I would > NOT try re-initialization without being sure the radio is working as it > should and reliably.?? One could end up with more than one issue to deal > with and diagnose. > > 73 > > Bob, K4TAX > > On 6/6/2020 9:11 AM, Jim McCook wrote: >> Thanks to those who responded with good suggestions.? This morning I >> turned it on and saw a different set of error codes, but there was >> audio.? Powered off and on and saw MAIN freq display, but SUB had >> disappeared.? More power off/on resulted in going back to normal >> operation.? It has been fine for the last hour.? Will try the re >> initialization if it fails again. It may be the pins on front panel as >> some have suggested.? I hesitate to pull off the front panel, but will >> talk to a friend who assembled his K3 about that. 73, Jim W6YA From elecraft.list at videotron.ca Sat Jun 6 11:57:26 2020 From: elecraft.list at videotron.ca (Tom) Date: Sat, 6 Jun 2020 11:57:26 -0400 Subject: [Elecraft] New release of Win4IcomSuite supporting the SDRPlay RSPDx and IQ Output. Message-ID: <04ec01d63c1b$2e740fb0$8b5c2f10$@videotron.ca> Hello, There is a new version of Win4K3Suite available, version 2.026. This release adds support for the SDRPlay RSPDX and has an IQ output which allows use of CWSkimmer simultaneously. Win4K3Suite is a full featured control program for the K3/S, KX3 and KX2. It has a built in Panadapter that works with LPPAN and a sound card, as well as the SDRPlay RSP's. It supports the KAT500, KPA500/1500 and the KXPA100 on most of the above radios. A unique feature is that is has 6 built in Virtual Radios, each of which works just like an Elecraft radio. This allows sharing of a single COM port with up to 6 applications. It also has a built in HRDLogbook server and the EiBi Shortwave database. You see more information here: https://www.youtube.com/results?search_query=win4k3suite and download a fully functional 30 day trial at va2fsq.com 73 Tom va2fsq.com From w6png at yahoo.com Sat Jun 6 12:13:08 2020 From: w6png at yahoo.com (Paul Gacek) Date: Sat, 6 Jun 2020 09:13:08 -0700 Subject: [Elecraft] New release of Win4IcomSuite supporting the SDRPlay RSPDx and IQ Output. In-Reply-To: <04ec01d63c1b$2e740fb0$8b5c2f10$@videotron.ca> References: <04ec01d63c1b$2e740fb0$8b5c2f10$@videotron.ca> Message-ID: Thanks Tom and I think your product is great offering a ton out utility!! Paul W6PNG/M0SNA www.nomadic.com > On Jun 6, 2020, at 8:57 AM, Tom wrote: > > Hello, > There is a new version of Win4K3Suite available, version 2.026. This release > adds support for the SDRPlay RSPDX and has an IQ output which allows use of > CWSkimmer simultaneously. > > Win4K3Suite is a full featured control program for the K3/S, KX3 and KX2. > It has a built in Panadapter that works with LPPAN and a sound card, as well > as the SDRPlay RSP's. It supports the KAT500, KPA500/1500 and the KXPA100 on > most of the above radios. > A unique feature is that is has 6 built in Virtual Radios, each of which > works just like an Elecraft radio. This allows sharing of a single COM port > with up to 6 applications. It also has a built in HRDLogbook server and the > EiBi Shortwave database. > You see more information here: > https://www.youtube.com/results?search_query=win4k3suite > and download a fully functional 30 day trial at va2fsq.com > > 73 Tom > va2fsq.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From ray2.s at btinternet.com Sat Jun 6 12:19:26 2020 From: ray2.s at btinternet.com (Ray Spreadbury) Date: Sat, 6 Jun 2020 17:19:26 +0100 Subject: [Elecraft] K3S dead after attempted firmware update -FIXED Message-ID: <027d01d63c1e$3fbe4d50$bf3ae7f0$@btinternet.com> Thanks to Paul GM0BKC who put me on the right track. Radio now fine & Firmware update completed Ray G3XLG From radiok4ia at gmail.com Sat Jun 6 12:21:02 2020 From: radiok4ia at gmail.com (Buck) Date: Sat, 6 Jun 2020 12:21:02 -0400 Subject: [Elecraft] K3S dead after attempted firmware update -FIXED In-Reply-To: <027d01d63c1e$3fbe4d50$bf3ae7f0$@btinternet.com> References: <027d01d63c1e$3fbe4d50$bf3ae7f0$@btinternet.com> Message-ID: Please tell us what you did so everyone can learn from your experience k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 6/6/2020 12:19 PM, Ray Spreadbury via Elecraft wrote: > Thanks to Paul GM0BKC who put me on the right track. Radio now fine & > Firmware update completed > > Ray G3XLG > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok4ia at gmail.com > From w4sc at windstream.net Sat Jun 6 13:34:16 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 6 Jun 2020 13:34:16 -0400 Subject: [Elecraft] 6M K3,, KAt3, GAIN-LP, Power Out issues Message-ID: <49.95.30134.693DBDE5@smtp01.aqua.bos.sync.lan> Having issues with one of my K3 on 6M. One has been resolved. FW 6.67 installed. KAT3 was having trouble finding a match into a -25db load at 50.125MHz. It would take several seconds to resolve To an SWR of anywhere from 1.2 to 1.7 indicated SWR. During the searching sequence the display would show -..- , but finally resolve and display the SWR. Pressing ATU Tune again would initiate another tuning sequence with the same results. The TX Gain Calibration was performed, with the same results. FW 5.66 installed. Since there was a fix in FW 5.67 to address the K3S 6M gain issue, FW 5.66 was re-installed. The above issue was still present. I performed TX Gain Calibration again, still no resolution. L10-C10 Removed from KAT3 After reading about the trap problem on the reflector, L10 and C10 were remove and a jumper installed. I found that the leads of the 2 capacitors that made up C10 were against the solder mask in very close contact with the surrounding ground. Performed TX Gain Calibration again. This seems to have fixed the KAT3 tuning issue. The KAT3 now resolves to a 1.2:1 to 1.3 SWR at 50.125, and no retuning / re-resolving to subsequent ATU Tune request Power out at 50.125 vs 52.000 I noted in the K3 Utility that the TX GAIN Calibration is performed at 52.000MHz. Requesting 100W at the power control resulted in a measurement of about 58W output at 50125MHz, and 84W at 52.000MHz. TXGAIN-LP Changing?? Through the Config Menu, I checked the TXGAIN-LP and TXGAIN-HP for 6M during this debug. TXGAIN HP was noted to be as the TXGAIN Calibration had set. TXGAIN Calibration values set would range 10 to 14. HOWEVER, TXGAIN-LP was changed from the initial setting to 87 at one point I have noted various values of TXGAIN-LP during this part of the debug, ranging from 70 to 89. Running TXGAIN Calibration will set it back to a value in the 10 to 14 range. Questions: Is there an issue with TXGAIN Calibration be performed at 52.000MHz that affects the lower part of the band? Is there an issue with the 6M Filter alignment? What is the center frequency of the alignment procedure? Test Equipment used: Bird Watt meter with appropriate element for power and frequency range. HP-436A Wattmeter with 8482 Sensor connected through 30db 100W attenuator. The two meter correlate very well within measurement tolerances. Anyone seen this before? Ben W4SC Power Out on 6M low? Sent from Mail for Windows 10 From nelasat at yahoo.com Sat Jun 6 14:14:41 2020 From: nelasat at yahoo.com (Keith Ennis) Date: Sat, 6 Jun 2020 18:14:41 +0000 (UTC) Subject: [Elecraft] Digital Display Unit for W2 and maybe W1 watt meter References: <384698737.208831.1591467281257.ref@mail.yahoo.com> Message-ID: <384698737.208831.1591467281257@mail.yahoo.com> I had a few interested in a DDU for their W1 watt meter.? It doesn't seem reasonable to build 2 DDU units.? I am working on software to sense if a W2 or W1 is hooked up to the display unit. Those interested can check my web site to see when this will be available:? ?http://www.kv5j.com Thanks, stay safe and 73 ?? Keith, KV5J From bill at conwellpdx.com Sat Jun 6 14:26:35 2020 From: bill at conwellpdx.com (Bill Conwell) Date: Sat, 6 Jun 2020 11:26:35 -0700 Subject: [Elecraft] KAT500 antenna switching question - can't switch from ANT1 Message-ID: I've had the KAT500 for years, but never had occasion to use ANT2 or ANT3. I now want to put a second antenna on ANT2, but find the front panel ANT button seemingly inoperative. The tuner stays on "1" regardless of pushing the ANT button, and regardless of the AUTO/MAN/BYP mode. I've tried with the K3 on and off - same results. Power cycling the KAT500 makes no difference. I've tried disconnecting both the XCVR and AMP control cables - no difference. I've tried with the Utility program. Under the Operate tab I can click ANT2 and ANT3 buttons, and the UI shows their selection briefly, but the UI indication then returns back to ANT1. (The KAT500, itself, doesn't seem to respond to this brief selection entered through the utility program UI.) The KAT500 has firmware 1.75. Any ideas? tnx, Bill, K2PO From hdv at kpnplanet.nl Sat Jun 6 14:47:33 2020 From: hdv at kpnplanet.nl (hdv at kpnplanet.nl) Date: Sat, 6 Jun 2020 20:47:33 +0200 Subject: [Elecraft] K3(s) main oscillator calibration Message-ID: <00a001d63c32$f0b603a0$d2220ae0$@kpnplanet.nl> Hi all, In the CONFIG menu REF CALL the value of the main oscillator can be set. However, this does not impact the TCXO frequency at all in a direct sense. Whatever the REF CALL value, the TXCO frequency stays the same. This can also be seen in the schematic. The TXCO just outputs 49.380 MHz and has no voltage/frequency-adjustment input. So where and how does the frequency correction take place? Somewhere at the 15 kHz level or in the KSYN3 DDS / KSYN3A divider? Who can explain the principle. 73 Henk PA0C -- Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware. https://www.avast.com/antivirus From bill at conwellpdx.com Sat Jun 6 14:50:28 2020 From: bill at conwellpdx.com (Bill Conwell) Date: Sat, 6 Jun 2020 11:50:28 -0700 Subject: [Elecraft] KAT500 antenna switching question - can't switch from ANT1 In-Reply-To: References: Message-ID: Fixed. tnx to VE7ZD for the answer. ANT2 and ANT3 were disabled under Config tab. Checking those boxes - and checking the box indicating All Bands - did the trick. /Bill, K2PO On Sat, Jun 6, 2020 at 11:26 AM Bill Conwell wrote: > I've had the KAT500 for years, but never had occasion to use ANT2 or ANT3. > > I now want to put a second antenna on ANT2, but find the front panel ANT > button seemingly inoperative. The tuner stays on "1" regardless of pushing > the ANT button, and regardless of the AUTO/MAN/BYP mode. I've tried with > the K3 on and off - same results. Power cycling the KAT500 makes no > difference. I've tried disconnecting both the XCVR and AMP control cables > - no difference. > > I've tried with the Utility program. Under the Operate tab I can click > ANT2 and ANT3 buttons, and the UI shows their selection briefly, but the UI > indication then returns back to ANT1. (The KAT500, itself, doesn't seem to > respond to this brief selection entered through the utility program UI.) > > The KAT500 has firmware 1.75. > > Any ideas? > > tnx, > > Bill, K2PO > From wes_n7ws at triconet.org Sat Jun 6 15:21:46 2020 From: wes_n7ws at triconet.org (Wes) Date: Sat, 6 Jun 2020 12:21:46 -0700 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <00a001d63c32$f0b603a0$d2220ae0$@kpnplanet.nl> References: <00a001d63c32$f0b603a0$d2220ae0$@kpnplanet.nl> Message-ID: The various reference calibration methods, including direct measurement of the TCXO that I do, just determine what the actual reference frequency is, but don't change it. This value is then used internally to compute the correct frequencies. Wes? N7WS On 6/6/2020 11:47 AM, hdv at kpnplanet.nl wrote: > Hi all, > > > > In the CONFIG menu REF CALL the value of the main oscillator can be set. > > However, this does not impact the TCXO frequency at all in a direct sense. > > > > Whatever the REF CALL value, the TXCO frequency stays the same. > > This can also be seen in the schematic. > > The TXCO just outputs 49.380 MHz and has no voltage/frequency-adjustment > input. > > > > So where and how does the frequency correction take place? > > Somewhere at the 15 kHz level or in the KSYN3 DDS / KSYN3A divider? > > > > Who can explain the principle. > > > > 73 Henk > > PA0C > > > From ghyoungman at gmail.com Sat Jun 6 15:47:16 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sat, 6 Jun 2020 15:47:16 -0400 Subject: [Elecraft] KX3 Opposite Sideband Nulling Message-ID: SInce I had nothing better to do today, I decided to redo the opposite sideband nulling on my KX3. I get very good nulls in the FL2 and FL1 positions, but only a very broad and shallow (max of 1-2 S-units on the meter) null in FL3. Before I fire off a note to Elecraft support, I thought I?d ask if anyone else who has done this found the same thing, or if perhaps I have a possible issue with my roofing filter board and should be getting a very good null with FL3 selected. And before you ask, yes, I?m following the procedure correctly :-) Thanks ? Grant NQ5T From w4sc at windstream.net Sat Jun 6 17:26:53 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 6 Jun 2020 17:26:53 -0400 Subject: [Elecraft] K3(s) main oscillator calibration Message-ID: I like the zero beat WWV method. Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment! If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better, Using a frequency counter I would think 0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect. Ben W4SC Sent from Mail for Windows 10 From W2xj at w2xj.net Sat Jun 6 17:31:21 2020 From: W2xj at w2xj.net (W2xj) Date: Sat, 6 Jun 2020 17:31:21 -0400 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: References: Message-ID: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> the problem with WWV is doppler shift. Sent from my iPad > On Jun 6, 2020, at 5:27 PM, w4sc wrote: > > ?I like the zero beat WWV method. Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment! If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better, > > Using a frequency counter I would think 0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect. > > Ben W4SC > > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net > From dave at nk7z.net Sat Jun 6 17:42:57 2020 From: dave at nk7z.net (Dave Cole) Date: Sat, 6 Jun 2020 14:42:57 -0700 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> Message-ID: <1e2a6bfd-ac71-f091-4717-2c804dbb8e9e@nk7z.net> Hi, As the other station siad, you will have Doppler issues. Also the K3 tunes in steps, which make sustained .1 hz accuracy a dream, not attainable. It looks to tune in .25 Hz., or larger steps. I am going from memory here, so it may be something different. I wanted to use my K3 to watch Ionospheric shifting, via Doppler shifts, from WWV. I am unable to as a result of the method Elecraft chose for tuning. I have the TXCO, and that just provides a reference for the radio, it does not make the steps go away... I was quite disappointed when I discovered this, but, the good stuff in the rest of the radio makes up for that small loss. I'll buy some stable rig that uses analog tuning. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/6/20 2:31 PM, W2xj wrote: > the problem with WWV is doppler shift. > > Sent from my iPad > >> On Jun 6, 2020, at 5:27 PM, w4sc wrote: >> >> ?I like the zero beat WWV method. Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment! If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better, >> >> Using a frequency counter I would think 0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect. >> >> Ben W4SC >> >> >> Sent from Mail for Windows 10 >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w2xj at w2xj.net >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net > From donwilh at embarqmail.com Sat Jun 6 18:20:58 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 6 Jun 2020 18:20:58 -0400 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <1e2a6bfd-ac71-f091-4717-2c804dbb8e9e@nk7z.net> References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> <1e2a6bfd-ac71-f091-4717-2c804dbb8e9e@nk7z.net> Message-ID: <3774ecc2-3006-b05d-a768-7ba3a44f6268@embarqmail.com> With the main K3 fine tuning at 1 Hz steps, I don't know that 0.1Hz or even 0.25Hz doppler shift will matter much in the final result. My frequency counter is good to 10 exp-9 which equates to +/-0.1 Hz at the TCXO frequency, so the WWV method provides as good or better accuracy, even considering the doppler shift possibility. The main problem is chasing the beat note down to a stable solid note. You usually can't truly get there, but you can get close enough that you hear about 10 or 20 seconds between peaks. Close enough for me. It can be quite expensive to obtain stability better than the K3S in an analog oscillator. My HP8640B signal generator will do that, but it takes at least a 3 hour warmup before it becomes stable. Yes, all the internal enclosures in my '8640 have covers with all the screws installed - that helps. OK, that is 'old iron', but I am not going to spend several $10,000 for something better. I have better things to do with my money, and no longer have access to modern lab quality equipment to achieve that kind of stability. We have a ham band transceiver - not a precision lab instrument. As long as we can stay inside our ham bands, that is all that matters to me. I would not put a carrier exactly on 7,000.00 kHz with any transceiver. 73, Don W3FPR On 6/6/2020 5:42 PM, Dave Cole wrote: > Hi, > > As the other station siad, you will have Doppler issues.? Also the K3 > tunes in steps, which make sustained .1 hz accuracy a dream, not > attainable.? It looks to tune in .25 Hz., or larger steps.? I am going > from memory here, so it may be something different. > > I wanted to use my K3 to watch Ionospheric shifting, via Doppler shifts, > from WWV.? I am unable to as a result of the method Elecraft chose for > tuning. > > I have the TXCO, and that just provides a reference for the radio, it > does not make the steps go away... > > I was quite disappointed when I discovered this, but, the good stuff in > the rest of the radio makes up for that small loss.? I'll buy some > stable rig that uses analog tuning. > From k9yeq at live.com Sat Jun 6 19:20:12 2020 From: k9yeq at live.com (Bill Johnson) Date: Sat, 6 Jun 2020 23:20:12 +0000 Subject: [Elecraft] Self-fusing liquid electrical tape In-Reply-To: <439f5b40-233b-b08b-0ee3-dec891cb8443@comcast.net> References: <6372712f-d895-d1a5-79e7-ba0f298576a3@embarqmail.com> <728C0F98-FAA6-4A22-8CDF-2560F2D42653@w2xj.net> <463420599.2402738.1591388437286@mail.yahoo.com>, <439f5b40-233b-b08b-0ee3-dec891cb8443@comcast.net> Message-ID: I use maps gas with silvafloss. Have a great day! Bill ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Roger Steyaert Sent: Friday, June 5, 2020 4:41:16 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Self-fusing liquid electrical tape I have 12 ground rods in the ring ground system around my house with the radios in one room inside. the ground rods are all tied to each other and the power ground. I agree the Cad welds can get expensive, that is why I high temperature silver soldered the wire and ground rods together. Not normal soft solder but the high strength, high temperature silver solder used in HVAC systems. This requires a acetylene torch to do the soldering with. this accomplishes the same thing that a CAD weld provides but with less cost if you have gas welding equipment available. What ever you do make sure the system will maintain very good connections over time or you are just giveng yourself a false sense of security that can be very costly both in money and safety over time. Roger K7RXV On 6/5/2020 4:20 PM, Mike Maloney wrote: > Don, Are those all 8 ft ground rods driven vertical in ground without help from a rock drill? Lots of rock in your area? Mike AC5P > On Friday, June 5, 2020, 03:10:11 PM CDT, W2xj wrote: > > To my mind, false economy. > > Sent from my iPad > >> On Jun 5, 2020, at 3:36 PM, Don Wilhelm wrote: >> >> ? >> That is why I used the mechanical clamps. I have 10 ground rods for a perimeter ground wire around the house, 6 on the perimeter ground around the workshop building (where the antenna feedlines first enter) and another 4 in the antenna field. A total of 20 Cad Welds would have exceeded my budget - the #4 copper wire was expensive enough! >> All the clamps are above ground a bit, so I can check the tightness with a wrench at least once a year. >> In most cases, the perimeter wires are folded back on itself to fit into the clamp, so the wire is continuous rather than having cut ends. >> Yes, even the utility ground rod clamp is exposed. The building inspector frowned on it until I told him why and he allowed it because I do not (will not) mow grass near any of the ground rods. >> >> 73, >> Don W3FPR >> >>> On 6/5/2020 2:55 PM, Bob McGraw K4TAX wrote: >>> Just look at $11.00 per ground rod connection for Cad-Weld as compared to $1.98 for a mechanical clamp. Which do you think a ham will choose ? >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w2xj at w2xj.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ac5p at sbcglobal.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7rxv at comcast.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k9yeq at live.com From n4zr at comcast.net Sat Jun 6 19:55:27 2020 From: n4zr at comcast.net (N4ZR) Date: Sat, 6 Jun 2020 19:55:27 -0400 Subject: [Elecraft] Key Clicks Message-ID: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> There's a big discussion going on in contesting circles online about the problem of key clicks.? There's been a lot of discussion about settings called things like TXDelay, but so far as I can tell (and the manual confirms), the K3's TX delay is intended to protect amplifier relays at the start of a transmission.? So long as you don't run QSK, I would think that setting would have no influence on key clicks after the rise of the first CW element.? True? -- 73, Pete N4ZR Check out the Reverse Beacon Network at , now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX cluster. From k6dgw at foothill.net Sat Jun 6 20:05:28 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sat, 6 Jun 2020 17:05:28 -0700 Subject: [Elecraft] Key Clicks In-Reply-To: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> Message-ID: <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> True.? TXDelay is a sequencing parameter to assure that downstream switching has completed before RF appears. The keying waveform [particularly the edges and "corners"] affect the sidebands and thus bandwidth of the CW signal.? I don't believe QSK has anything to do with it, at least for a K3. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/6/2020 4:55 PM, N4ZR wrote: > There's a big discussion going on in contesting circles online about > the problem of key clicks.? There's been a lot of discussion about > settings called things like TXDelay, but so far as I can tell (and the > manual confirms), the K3's TX delay is intended to protect amplifier > relays at the start of a transmission.? So long as you don't run QSK, > I would think that setting would have no influence on key clicks after > the rise of the first CW element.? True? From jasimmons at pinewooddata.com Sat Jun 6 20:39:36 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Sat, 6 Jun 2020 19:39:36 -0500 Subject: [Elecraft] Key Clicks In-Reply-To: <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> Message-ID: <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> I have operated a number of the 'big' CW contests. I have heard some really, really wide sigs with horrible key clicks. Yes they were strong.... but 10 KHz wide? Rob Sherwood and others have written about this. Some of the really high-end rigs (non-Elecraft) allow user adjustment of CW rise time to such short values that key clicks are guaranteed. Yech! -de John NI0K Fred Jensen wrote on 6/6/2020 7:05 PM: > True. TXDelay is a sequencing parameter to assure that downstream > switching has completed before RF appears. The keying waveform > [particularly the edges and "corners"] affect the sidebands and thus > bandwidth of the CW signal.? I don't believe QSK has anything to do > with it, at least for a K3. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/6/2020 4:55 PM, N4ZR wrote: >> There's a big discussion going on in contesting circles online about >> the problem of key clicks.? There's been a lot of discussion about >> settings called things like TXDelay, but so far as I can tell (and >> the manual confirms), the K3's TX delay is intended to protect >> amplifier relays at the start of a transmission.? So long as you >> don't run QSK, I would think that setting would have no influence on >> key clicks after the rise of the first CW element.? True? > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jasimmons at pinewooddata.com From ab7echo at gmail.com Sat Jun 6 21:00:16 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sat, 6 Jun 2020 18:00:16 -0700 Subject: [Elecraft] Key Clicks In-Reply-To: <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> Message-ID: QSK has everything to do with it. If you hot switch the amp you create sharp waveforms every element even if the K3 keying is soft. The discussion on the contesting forum included comments that the default setting for TXDELAY on the K3 (apparently 008) isn't long enough and that it should be set to 009. Not sure which amps were being considered. 73, Dave AB7E On Sat, Jun 6, 2020 at 5:40 PM John Simmons wrote: > I have operated a number of the 'big' CW contests. I have heard some > really, really wide sigs with horrible key clicks. Yes they were > strong.... but 10 KHz wide? Rob Sherwood and others have written about > this. Some of the really high-end rigs (non-Elecraft) allow user > adjustment of CW rise time to such short values that key clicks are > guaranteed. Yech! > > -de John NI0K > > Fred Jensen wrote on 6/6/2020 7:05 PM: > > True. TXDelay is a sequencing parameter to assure that downstream > > switching has completed before RF appears. The keying waveform > > [particularly the edges and "corners"] affect the sidebands and thus > > bandwidth of the CW signal. I don't believe QSK has anything to do > > with it, at least for a K3. > > > > 73, > > Fred ["Skip"] K6DGW > > Sparks NV DM09dn > > Washoe County > > > > On 6/6/2020 4:55 PM, N4ZR wrote: > >> There's a big discussion going on in contesting circles online about > >> the problem of key clicks. There's been a lot of discussion about > >> settings called things like TXDelay, but so far as I can tell (and > >> the manual confirms), the K3's TX delay is intended to protect > >> amplifier relays at the start of a transmission. So long as you > >> don't run QSK, I would think that setting would have no influence on > >> key clicks after the rise of the first CW element. True? > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to jasimmons at pinewooddata.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ab7echo at gmail.com From wes_n7ws at triconet.org Sat Jun 6 21:48:40 2020 From: wes_n7ws at triconet.org (Wes) Date: Sat, 6 Jun 2020 18:48:40 -0700 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <1e2a6bfd-ac71-f091-4717-2c804dbb8e9e@nk7z.net> References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> <1e2a6bfd-ac71-f091-4717-2c804dbb8e9e@nk7z.net> Message-ID: All synthesized radios tune in steps. The difference between them is some are smaller steps than others.? Eleven years ago I offered a fourth method for calibrating the reference frequency in a K3. (I suspect, but do not know that the K3S is different.)? See: http://elecraft.365791.n2.nabble.com/Ref-Osc-Cal-Method-4-td2595451.html After reading about my observations another ham queried Wayne and he responded with an explanation of the frequency generation in the K3.? Once again, I don't whether this applies to the K3S.? Perhaps Wayne will let us know. Nevertheless, the tuning step sizes are different for different bands with the higher bands having greater step sizes, i.e. less accuracy.? I-F BW/Shift requires changing oscillator frequencies at I-F ("BFO") with commensurate changes in the LO.? Since the LO has different step sizes on different bands, changes in the beat note (that I observed) do occur. The K3(S) is a great transceiver, it isn't a great frequency meter. Wes? N7WS On 6/6/2020 2:42 PM, Dave Cole wrote: > Hi, > > As the other station siad, you will have Doppler issues.? Also the K3 tunes in > steps, which make sustained .1 hz accuracy a dream, not attainable.? It looks > to tune in .25 Hz., or larger steps.? I am going from memory here, so it may > be something different. > > I wanted to use my K3 to watch Ionospheric shifting, via Doppler shifts, from > WWV.? I am unable to as a result of the method Elecraft chose for tuning. > > I have the TXCO, and that just provides a reference for the radio, it does not > make the steps go away... > > I was quite disappointed when I discovered this, but, the good stuff in the > rest of the radio makes up for that small loss.? I'll buy some stable rig that > uses analog tuning. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources From kevinr at coho.net Sat Jun 6 22:07:14 2020 From: kevinr at coho.net (kevinr) Date: Sat, 6 Jun 2020 19:07:14 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <75e49617-3966-4643-e5b8-b2b39534144f@coho.net> Good Evening, Today is the anniversary of D-Day.? 18 years ago I started the Elecraft CW Net to commemorate my uncle's parachute jump inland of the Normandy beaches.? His job was to hold a bridge and stop German tanks from reaching the beach.? Months later he straggled into Bastogne after the Germans wiped out his platoon during the Battle of the Bulge. My dad was a radioman in B17s during 1942 in the South Pacific. After his tour as a DI at Cherry Point, North Carolina he went to radar school in Logan, Utah.? Then back into bombers.? He was the radar/radioman in B24s in the North Pacific during the last year of the war. Dad's footlocker full of radio and radar manuals (some of them marked classified) were my introduction to electronics.? Those manuals and a stack of ARC5 receivers.? Then Popular Electronics, Radio Electronics, and me taking apart broken TVs for parts. However, I fell to the dark side and started using transistors to make flip flops and logic circuits.? The analog magic had left me as did those warm, glowing tubes. Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) ? 7047 kHz at 0000z Monday (5 PM PDT Sunday) ?? 73, ????? Kevin. KD5ONS _ From rmcgraw at blomand.net Sat Jun 6 22:20:15 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 6 Jun 2020 21:20:15 -0500 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <3774ecc2-3006-b05d-a768-7ba3a44f6268@embarqmail.com> References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> <1e2a6bfd-ac71-f091-4717-2c804dbb8e9e@nk7z.net> <3774ecc2-3006-b05d-a768-7ba3a44f6268@embarqmail.com> Message-ID: <5fd79a25-663e-26fc-3fef-2de0220748bf@blomand.net> From my take, it is "ham radio" therefore +/-1 Hz. should be good enough for most operations.? After all, the K3S resolution is 1 Hz., +/-1 count as I see it. ? I can keep mine +/-2 or 3 Hz on most bands. I use WWV with the radio in CW mode and CWT on, tune close to WWV and press SPOT.??? If it settles on the WWV frequency that's good.? If it is off a few Hz, then I tweak the REF CAL up or down a few Hz until I get the accuracy I wish by repeating the process several times.? Still I find +/- 1 Hz is about it, even with the high stability TXCO and very adequate warm-up time of about 2 hrs. If one needs something more accurate, then Don is correct, test equipment is the way to go.? And expect to spend big bucks for good quality equipment that IS traceable to NIST.?? If the NIST document or calibration is more than 1 year old, the results will be questionable. I wrote an article which was published in QST, Sept 2015.?? It deals with "Transmit and Receive On Frequency".? It shows that digital readouts are just that, readouts,? and they are not frequency determining or measuring circuits.??? And when it is accurate on one band it may not have the same accuracy on another band. 73 Bob, K4TAX On 6/6/2020 5:20 PM, Don Wilhelm wrote: > With the main K3 fine tuning at 1 Hz steps, I don't know that 0.1Hz or > even 0.25Hz doppler shift will matter much in the final result. > > My frequency counter is good to 10 exp-9 which equates to +/-0.1 Hz at > the TCXO frequency, so the WWV method provides as good or better > accuracy, even considering the doppler shift possibility. > > The main problem is chasing the beat note down to a stable solid note. > You usually can't truly get there, but you can get close enough that > you hear about 10 or 20 seconds between peaks.? Close enough for me. > > It can be quite expensive to obtain stability better than the K3S in > an analog oscillator.? My HP8640B signal generator will do that, but > it takes at least a 3 hour warmup before it becomes stable.? Yes, all > the internal enclosures in my '8640 have covers with all the screws > installed - that helps.? OK, that is 'old iron', but I am not going to > spend several $10,000 for something better.? I have better things to > do with my money, and no longer have access to modern lab quality > equipment to achieve that kind of stability. > > We have a ham band transceiver - not a precision lab instrument. As > long as we can stay inside our ham bands, that is all that matters to > me.? I would not put a carrier exactly on 7,000.00 kHz with any > transceiver. > > 73, > Don W3FPR > > From k6dgw at foothill.net Sat Jun 6 22:29:10 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sat, 6 Jun 2020 19:29:10 -0700 Subject: [Elecraft] Key Clicks In-Reply-To: References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> Message-ID: <54e7f0ee-0987-0027-c33e-f3810b843ccc@foothill.net> Not really Dave, until you're sending at sufficient speed to tax the sequencing of the radio.? QSK is "inherently" a receive function -- mute the receiver while generating RF, unmute when it's not.? TXDelay waits ms before starting RF to let amplifier switching settle, at which point you're either going to generate key clicks or not depending on the timing and waveshape of the RF envelope. If you hot switch anything, you're going to create lots of noise, much of which will be indistinguishable from simple key clicks. But, stop the hot switching and you do NOT automatically stop the key clicks, particularly if the radio allows you to adjust the rise/fall times of the RF envelope [a very stupid idea] and you've set it very short. In today's radios, other things may happen such as shifting frequencies if you're split, and that just adds to the complexity.? But basically, the fact that QSK means you can hear between code elements does not impact your CW waveform.? Your CW bandwidth is a result of the timing and waveform of the beginning and end of your RF envelope for each element which Joseph Fourier figured out way before any of us were born or radio and CW had been invented. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/6/2020 6:00 PM, David Gilbert wrote: > QSK has everything to do with it. If you hot switch the amp you create > sharp waveforms every element even if the K3 keying is soft. The > discussion on the contesting forum included comments that the default > setting for TXDELAY on the K3 (apparently 008) isn't long enough and that > it should be set to 009. Not sure which amps were being considered. > > 73, > Dave AB7E > > From rmcgraw at blomand.net Sat Jun 6 22:44:16 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 6 Jun 2020 21:44:16 -0500 Subject: [Elecraft] Key Clicks In-Reply-To: References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> Message-ID: With my P3 I observe many CW signals that are wide.? And key clicks are easily recognized.? Likewise, transmit phase noise is also recognized as some signals are wide and some are very narrow. ?? Casual observations? seem to center on one particular brand of radio that is most prone to have key clicks.?? I've owned 2 of them and both were plagued with key clicks.?? On one CW net which I participate, one of the ops can send a single dit or dah and I'll know exactly who it is.?? His signal is that identifiable. Yes, amps with slow relays are very prone to generate key clicks.?? Even amps with vacuum relays with an accelerator circuit are often a bit slow.? One of the current, on the market, new amps selling today has a switching time which I measured of about 15 ms. There is no way this amp should be used in a QSK station operation or even a Semi-QSK unless the delay time is extended out to 17 ms to 18 ms.? ? That is one reason I sold it and purchased a KPA500. Some amps contain a circuit which prevents hot switching. However, if the delay is not sufficient, the amp will not switch into transmit.? This amp also uses two lines between the amp and radio.? One is the amp command, and the other is the radio command which occurs after the amp has switched.?? I've owned one of those and the matching radio and it is a super combination for QSK operation. I am also aware that several of the new ARRL Volunteer Monitor stations have and are reporting those stations with wide signals and stations with key clicks. 73 Bob, K4TAX On 6/6/2020 8:00 PM, David Gilbert wrote: > QSK has everything to do with it. If you hot switch the amp you create > sharp waveforms every element even if the K3 keying is soft. The > discussion on the contesting forum included comments that the default > setting for TXDELAY on the K3 (apparently 008) isn't long enough and that > it should be set to 009. Not sure which amps were being considered. > > 73, > Dave AB7E > > On Sat, Jun 6, 2020 at 5:40 PM John Simmons > wrote: > >> I have operated a number of the 'big' CW contests. I have heard some >> really, really wide sigs with horrible key clicks. Yes they were >> strong.... but 10 KHz wide? Rob Sherwood and others have written about >> this. Some of the really high-end rigs (non-Elecraft) allow user >> adjustment of CW rise time to such short values that key clicks are >> guaranteed. Yech! >> >> -de John NI0K >> >> Fred Jensen wrote on 6/6/2020 7:05 PM: >>> True. TXDelay is a sequencing parameter to assure that downstream >>> switching has completed before RF appears. The keying waveform >>> [particularly the edges and "corners"] affect the sidebands and thus >>> bandwidth of the CW signal. I don't believe QSK has anything to do >>> with it, at least for a K3. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>> On 6/6/2020 4:55 PM, N4ZR wrote: >>>> There's a big discussion going on in contesting circles online about >>>> the problem of key clicks. There's been a lot of discussion about >>>> settings called things like TXDelay, but so far as I can tell (and >>>> the manual confirms), the K3's TX delay is intended to protect >>>> amplifier relays at the start of a transmission. So long as you >>>> don't run QSK, I would think that setting would have no influence on >>>> key clicks after the rise of the first CW element. True? >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to jasimmons at pinewooddata.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ab7echo at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net > From dave at nk7z.net Sat Jun 6 22:45:10 2020 From: dave at nk7z.net (Dave Cole) Date: Sat, 6 Jun 2020 19:45:10 -0700 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> <1e2a6bfd-ac71-f091-4717-2c804dbb8e9e@nk7z.net> Message-ID: Thanks for the info, I think the other ham that asked Wayne, was me... :) I don't need absolute accuracy, I just wanted no steps is all... I will go pick up an older Icom, or something along that line. I had a Pro III and it worked for my application, watching short term changes in the Ionosphere. Even had I know the K3 was not capable of doing this, I would have still purchased it. As you intimated, the right tool for the right job. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/6/20 6:48 PM, Wes wrote: > All synthesized radios tune in steps. The difference between them is > some are smaller steps than others.? Eleven years ago I offered a fourth > method for calibrating the reference frequency in a K3. (I suspect, but > do not know that the K3S is different.)? See: > http://elecraft.365791.n2.nabble.com/Ref-Osc-Cal-Method-4-td2595451.html > > After reading about my observations another ham queried Wayne and he > responded with an explanation of the frequency generation in the K3. > Once again, I don't whether this applies to the K3S.? Perhaps Wayne will > let us know. Nevertheless, the tuning step sizes are different for > different bands with the higher bands having greater step sizes, i.e. > less accuracy.? I-F BW/Shift requires changing oscillator frequencies at > I-F ("BFO") with commensurate changes in the LO. Since the LO has > different step sizes on different bands, changes in the beat note (that > I observed) do occur. > > The K3(S) is a great transceiver, it isn't a great frequency meter. > > Wes? N7WS > > On 6/6/2020 2:42 PM, Dave Cole wrote: >> Hi, >> >> As the other station siad, you will have Doppler issues.? Also the K3 >> tunes in steps, which make sustained .1 hz accuracy a dream, not >> attainable.? It looks to tune in .25 Hz., or larger steps.? I am going >> from memory here, so it may be something different. >> >> I wanted to use my K3 to watch Ionospheric shifting, via Doppler >> shifts, from WWV.? I am unable to as a result of the method Elecraft >> chose for tuning. >> >> I have the TXCO, and that just provides a reference for the radio, it >> does not make the steps go away... >> >> I was quite disappointed when I discovered this, but, the good stuff >> in the rest of the radio makes up for that small loss.? I'll buy some >> stable rig that uses analog tuning. >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net From k2vco.vic at gmail.com Sat Jun 6 23:16:51 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Sun, 7 Jun 2020 06:16:51 +0300 Subject: [Elecraft] Key Clicks In-Reply-To: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> Message-ID: Correct. But if you are hot-switching at all, even only on the first element, you risk damage to the amplifier and the transceiver. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 07-Jun-2020 02:55, N4ZR wrote: > There's a big discussion going on in contesting circles online about the > problem of key clicks.? There's been a lot of discussion about settings > called things like TXDelay, but so far as I can tell (and the manual > confirms), the K3's TX delay is intended to protect amplifier relays at > the start of a transmission.? So long as you don't run QSK, I would > think that setting would have no influence on key clicks after the rise > of the first CW element.? True? > From k2vco.vic at gmail.com Sat Jun 6 23:19:22 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Sun, 7 Jun 2020 06:19:22 +0300 Subject: [Elecraft] Key Clicks In-Reply-To: References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> Message-ID: <2284cfce-6283-668b-4165-28c4cacb8ccb@gmail.com> In fact, it's closer to 5-6 ms when set to 8. And of course it depends on the amp. A general rule to "set it to 9" is silly. It just has to give the relays time to settle down. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 07-Jun-2020 04:00, David Gilbert wrote: > QSK has everything to do with it. If you hot switch the amp you create > sharp waveforms every element even if the K3 keying is soft. The > discussion on the contesting forum included comments that the default > setting for TXDELAY on the K3 (apparently 008) isn't long enough and that > it should be set to 009. Not sure which amps were being considered. > > 73, > Dave AB7E > > On Sat, Jun 6, 2020 at 5:40 PM John Simmons > wrote: > >> I have operated a number of the 'big' CW contests. I have heard some >> really, really wide sigs with horrible key clicks. Yes they were >> strong.... but 10 KHz wide? Rob Sherwood and others have written about >> this. Some of the really high-end rigs (non-Elecraft) allow user >> adjustment of CW rise time to such short values that key clicks are >> guaranteed. Yech! >> >> -de John NI0K >> >> Fred Jensen wrote on 6/6/2020 7:05 PM: >>> True. TXDelay is a sequencing parameter to assure that downstream >>> switching has completed before RF appears. The keying waveform >>> [particularly the edges and "corners"] affect the sidebands and thus >>> bandwidth of the CW signal. I don't believe QSK has anything to do >>> with it, at least for a K3. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>> On 6/6/2020 4:55 PM, N4ZR wrote: >>>> There's a big discussion going on in contesting circles online about >>>> the problem of key clicks. There's been a lot of discussion about >>>> settings called things like TXDelay, but so far as I can tell (and >>>> the manual confirms), the K3's TX delay is intended to protect >>>> amplifier relays at the start of a transmission. So long as you >>>> don't run QSK, I would think that setting would have no influence on >>>> key clicks after the rise of the first CW element. True? >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to jasimmons at pinewooddata.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ab7echo at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com > From jackbrindle at me.com Sat Jun 6 23:21:07 2020 From: jackbrindle at me.com (Jack Brindle) Date: Sat, 6 Jun 2020 20:21:07 -0700 Subject: [Elecraft] Key Clicks In-Reply-To: References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> Message-ID: <2DC40BDE-55A2-4F80-AA40-B03581E763E1@me.com> I read that also. It was not a KPA500 or KPA1500. The Elecraft amplifiers are designed with solid-state switching and are capable of switching very rapidly, in much less time than 8 mSec. In fact the amps will switch quickly enough to allow true QSK in the K3/K3S. Fred?s analysis is correct in this regards. There is a trade off with slower switching amplifiers - requiring higher values for TxDelay means eliminating QSK times and this the ability to copy signals between key down times. This is documented quite nicely in the K3 manual. See the entry for TxDelay on page 66 of the K3S Owner?s manual, Rev A1. It is notable in the ongoing discussion that the K3 and K3S are called out as examples of transceivers that do things right. In fact those of us with both Elecraft transceivers and Elecraft amplifiers provide examples of some of the cleanest signals on the air. 73! Jack, W6FB > On Jun 6, 2020, at 6:00 PM, David Gilbert wrote: > > QSK has everything to do with it. If you hot switch the amp you create > sharp waveforms every element even if the K3 keying is soft. The > discussion on the contesting forum included comments that the default > setting for TXDELAY on the K3 (apparently 008) isn't long enough and that > it should be set to 009. Not sure which amps were being considered. > > 73, > Dave AB7E > > On Sat, Jun 6, 2020 at 5:40 PM John Simmons > wrote: > >> I have operated a number of the 'big' CW contests. I have heard some >> really, really wide sigs with horrible key clicks. Yes they were >> strong.... but 10 KHz wide? Rob Sherwood and others have written about >> this. Some of the really high-end rigs (non-Elecraft) allow user >> adjustment of CW rise time to such short values that key clicks are >> guaranteed. Yech! >> >> -de John NI0K >> >> Fred Jensen wrote on 6/6/2020 7:05 PM: >>> True. TXDelay is a sequencing parameter to assure that downstream >>> switching has completed before RF appears. The keying waveform >>> [particularly the edges and "corners"] affect the sidebands and thus >>> bandwidth of the CW signal. I don't believe QSK has anything to do >>> with it, at least for a K3. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>> On 6/6/2020 4:55 PM, N4ZR wrote: >>>> There's a big discussion going on in contesting circles online about >>>> the problem of key clicks. There's been a lot of discussion about >>>> settings called things like TXDelay, but so far as I can tell (and >>>> the manual confirms), the K3's TX delay is intended to protect >>>> amplifier relays at the start of a transmission. So long as you >>>> don't run QSK, I would think that setting would have no influence on >>>> key clicks after the rise of the first CW element. True? >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to jasimmons at pinewooddata.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ab7echo at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From rmcgraw at blomand.net Sat Jun 6 23:59:53 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 6 Jun 2020 22:59:53 -0500 Subject: [Elecraft] Key Clicks In-Reply-To: <2284cfce-6283-668b-4165-28c4cacb8ccb@gmail.com> References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> <2284cfce-6283-668b-4165-28c4cacb8ccb@gmail.com> Message-ID: There are actually 2 time elements involved.? First is the time between key closure and the amp key command.? This is approximately 3ms of processing time inside the radio.? The second is amp key command to RF generation out of the radio.? This is the 5ms between amp key command and RF generation. ?? These are summed together to get the total time from Key closure to? RF generation of about 8ms. One other company to which I'm very familiar,? specs their radio as 15 ms RF delay.? What is not disclosed is a breakdown of this 15ms,? that 7 ms of the total time occurs from key closure to amp key command, thus leaving 8ms from amp key command to RF generation.? This requires the amp to switch in 7ms or less.?? A mechanical relay is really being pushed to accomplish this fact. This 15ms delay is not user adjustable.? And the CW rise and fall time is 5ms.? A bit fast for a really clean signal.??? Another model of the brand offers and adjustable CW rise and fall time adjustable between 3 - 10 ms.? The longer time makes for a much cleaner CW signal.? Again the delay from key closure to RF generation is in the order of 15ms. Older amp designs, typically those that do not clearly provide QSK identification or mode, are typically not suitable for QSK operation.?? Thus switching one of these amps at the faster speeds will most likely cause hot switching, resulting in key clicks and eventually relay failure. I've found the K3S and KPA500 to produce some of the cleanest CW signals on the bands.?? Timing is the secret and the design team at Elecraft have focused heavily on this aspect of these products. 73 Bob, K4TAX On 6/6/2020 10:19 PM, Victor Rosenthal 4X6GP wrote: > In fact, it's closer to 5-6 ms when set to 8. And of course it depends > on the amp. A general rule to "set it to 9" is silly. It just has to > give the relays time to settle down. > > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > CWops no. 5 > http://www.qsl.net/k2vco/ > On 07-Jun-2020 04:00, David Gilbert wrote: >> QSK has everything to do with it.? If you hot switch the amp you create >> sharp waveforms every element even if the K3 keying is soft. The >> discussion on the contesting forum included comments that the default >> setting for TXDELAY on the K3 (apparently 008) isn't long enough and >> that >> it should be set to 009.? Not sure which amps were being considered. >> >> 73, >> Dave?? AB7E >> From hdv at kpnplanet.nl Sun Jun 7 04:27:37 2020 From: hdv at kpnplanet.nl (hdv at kpnplanet.nl) Date: Sun, 7 Jun 2020 10:27:37 +0200 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: References: <00a001d63c32$f0b603a0$d2220ae0$@kpnplanet.nl> Message-ID: <003401d63ca5$80b9a9d0$822cfd70$@kpnplanet.nl> I have seen a lot of answers. These are all true, but what is the exact way of working. 73 Henk -----Oorspronkelijk bericht----- Van: elecraft-bounces at mailman.qth.net Namens Wes Verzonden: zaterdag 6 juni 2020 21:22 Aan: elecraft at mailman.qth.net Onderwerp: Re: [Elecraft] K3(s) main oscillator calibration The various reference calibration methods, including direct measurement of the TCXO that I do, just determine what the actual reference frequency is, but don't change it. This value is then used internally to compute the correct frequencies. Wes N7WS On 6/6/2020 11:47 AM, hdv at kpnplanet.nl wrote: > Hi all, > > > > In the CONFIG menu REF CALL the value of the main oscillator can be set. > > However, this does not impact the TCXO frequency at all in a direct sense. > > > > Whatever the REF CALL value, the TXCO frequency stays the same. > > This can also be seen in the schematic. > > The TXCO just outputs 49.380 MHz and has no > voltage/frequency-adjustment input. > > > > So where and how does the frequency correction take place? > > Somewhere at the 15 kHz level or in the KSYN3 DDS / KSYN3A divider? > > > > Who can explain the principle. > > > > 73 Henk > > PA0C > > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hdv at kpnplanet.nl -- Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware. https://www.avast.com/antivirus From kh at kh-translation.dk Sun Jun 7 05:16:10 2020 From: kh at kh-translation.dk (Kjeld Holm) Date: Sun, 7 Jun 2020 09:16:10 +0000 Subject: [Elecraft] K3 with 2m internal transverter In-Reply-To: References: Message-ID: Hi Jim, You are right I believe. The effective receiver performance is determined by the transverter. But especially for EME you would like to have a preamp with the best possible noise factor at the antenna to compensate for feedline loss. Vy 73 de OZ1CCM, Kjeld -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim Miller Sent: 5. juni 2020 21:03 To: Elecraft at mailman.qth.net Subject: [Elecraft] K3 with 2m internal transverter Helping a friend to try to get the most out of his 2m equipped K3 especially for EME. Is it recommended to use the internal preamp when the internal transverter is in use? I'm guessing "no" due to to 20db transverter RX gain. On page 21 of the P3 Owners Manual it describes the integration of the K3/P3 wrt attenuator and preamp settings. Does the K3 and P3 similarly communicate the additional 20db gain of the transverter and reflect that in a downward push of the P3 noise display? Thanks Jim ab3cv ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to kh at kh-translation.dk From w8fn at windstream.net Sun Jun 7 09:03:51 2020 From: w8fn at windstream.net (Randy Farmer) Date: Sun, 7 Jun 2020 09:03:51 -0400 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <5fd79a25-663e-26fc-3fef-2de0220748bf@blomand.net> References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> <1e2a6bfd-ac71-f091-4717-2c804dbb8e9e@nk7z.net> <3774ecc2-3006-b05d-a768-7ba3a44f6268@embarqmail.com> <5fd79a25-663e-26fc-3fef-2de0220748bf@blomand.net> Message-ID: <5bc4a874-2c2e-9941-2433-84a0bd8513ce@windstream.net> The best way I've found to calibrate the K3 reference oscillator is to use the 500 Hz and 600 Hz audio tones transmitted by WWV. I put the line out audio through a sound card and look at it with SpectrumLab. Tune in WWV in USB or LSB mode and tweak the reference trim until the tones are correct when you switch sidebands with the dial at precisely XX.000 000 MHz. I've found that you can't get precise agreement between sidebands, probably because of quantization limits in the synthesizer, but it will certainly be less than a couple of Hertz. This is plenty accurate for amateur (or probably any other kind) of service. 73... Randy, W8FN On 6/6/2020 10:20 PM, Bob McGraw K4TAX wrote: > From my take, it is "ham radio" therefore +/-1 Hz. should be good > enough for most operations.? After all, the K3S resolution is 1 Hz., > +/-1 count as I see it. ? I can keep mine +/-2 or 3 Hz on most bands. > > I use WWV with the radio in CW mode and CWT on, tune close to WWV and > press SPOT.??? If it settles on the WWV frequency that's good.? If it > is off a few Hz, then I tweak the REF CAL up or down a few Hz until I > get the accuracy I wish by repeating the process several times.? Still > I find +/- 1 Hz is about it, even with the high stability TXCO and > very adequate warm-up time of about 2 hrs. > > If one needs something more accurate, then Don is correct, test > equipment is the way to go.? And expect to spend big bucks for good > quality equipment that IS traceable to NIST.?? If the NIST document or > calibration is more than 1 year old, the results will be questionable. > > I wrote an article which was published in QST, Sept 2015.?? It deals > with "Transmit and Receive On Frequency".? It shows that digital > readouts are just that, readouts,? and they are not frequency > determining or measuring circuits.??? And when it is accurate on one > band it may not have the same accuracy on another band. > > 73 > > Bob, K4TAX > > > On 6/6/2020 5:20 PM, Don Wilhelm wrote: >> With the main K3 fine tuning at 1 Hz steps, I don't know that 0.1Hz >> or even 0.25Hz doppler shift will matter much in the final result. >> >> My frequency counter is good to 10 exp-9 which equates to +/-0.1 Hz >> at the TCXO frequency, so the WWV method provides as good or better >> accuracy, even considering the doppler shift possibility. >> >> The main problem is chasing the beat note down to a stable solid >> note. You usually can't truly get there, but you can get close enough >> that you hear about 10 or 20 seconds between peaks. Close enough for me. >> >> It can be quite expensive to obtain stability better than the K3S in >> an analog oscillator.? My HP8640B signal generator will do that, but >> it takes at least a 3 hour warmup before it becomes stable.? Yes, all >> the internal enclosures in my '8640 have covers with all the screws >> installed - that helps.? OK, that is 'old iron', but I am not going >> to spend several $10,000 for something better.? I have better things >> to do with my money, and no longer have access to modern lab quality >> equipment to achieve that kind of stability. >> >> We have a ham band transceiver - not a precision lab instrument. As >> long as we can stay inside our ham bands, that is all that matters to >> me.? I would not put a carrier exactly on 7,000.00 kHz with any >> transceiver. >> >> 73, >> Don W3FPR From aj9c at indy.rr.com Sun Jun 7 09:29:07 2020 From: aj9c at indy.rr.com (Mike Kasrich) Date: Sun, 7 Jun 2020 09:29:07 -0400 Subject: [Elecraft] KX3 KXPA100 problem Message-ID: For some reason the combo seems to be stuck in "tune" mode. I've tried restarting everything. Hitting tune on the rig and amp to get it to cycle but nothing seems to be working. What am I overlooking? Mike/aj9c From a.durbin at msn.com Sun Jun 7 10:15:00 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 7 Jun 2020 14:15:00 +0000 Subject: [Elecraft] [OT] Birds and DX Message-ID: I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other. Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me. So how to keep birds of a mag loop without lowing the Q? 73, Andy k3wyc From rocketnj at gmail.com Sun Jun 7 10:19:00 2020 From: rocketnj at gmail.com (Dave) Date: Sun, 7 Jun 2020 10:19:00 -0400 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: <972DEFEC-2733-4A0F-A083-05870A1D5A1B@gmail.com> Somehow figure out how to mount a fake owl on top? Dave wo2x Sent from my iPad > On Jun 7, 2020, at 10:16 AM, Andy Durbin wrote: > > ?I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other. > > Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me. > > So how to keep birds of a mag loop without lowing the Q? > > 73, > Andy k3wyc > > > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rocketnj at gmail.com From a.durbin at msn.com Sun Jun 7 10:29:24 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 7 Jun 2020 14:29:24 +0000 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: <972DEFEC-2733-4A0F-A083-05870A1D5A1B@gmail.com> References: , <972DEFEC-2733-4A0F-A083-05870A1D5A1B@gmail.com> Message-ID: "Somehow figure out how to mount a fake owl on top?" There are several fake owls in or near the tails of aircraft at my local airport. There seems to be just as much bird excrement on these aircraft and on those with no owls. 73, Andy, k3wyc ________________________________ From: Dave Sent: Sunday, June 7, 2020 7:19 AM To: Andy Durbin Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] [OT] Birds and DX Somehow figure out how to mount a fake owl on top? Dave wo2x Sent from my iPad > On Jun 7, 2020, at 10:16 AM, Andy Durbin wrote: > > ?I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other. > > Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me. > > So how to keep birds of a mag loop without lowing the Q? > > 73, > Andy k3wyc > > > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rocketnj at gmail.com From w4sc at windstream.net Sun Jun 7 10:29:53 2020 From: w4sc at windstream.net (w4sc) Date: Sun, 7 Jun 2020 10:29:53 -0400 Subject: [Elecraft] [OT] Birds and DX Message-ID: <6B.52.20775.0E9FCDE5@smtp04.aqua.bos.sync.lan> Get a CAT to guard the antenna Sent from Mail for Windows 10 From k2vco.vic at gmail.com Sun Jun 7 10:30:55 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Sun, 7 Jun 2020 17:30:55 +0300 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: <7ac90e5c-513d-cb63-81f6-75accb799d25@gmail.com> Owls don't work unless (maybe) you can mechanize it so that the wings flap and it hoots. I have a roof with pigeon issues, and the only thing that works is to make the surface unattractive to them. If there is some way you could attach spikes to the top surfaces... maybe superglue broken glass to it? Or wrap it with fiberglass insulation, or use that plastic stuff used to protect kids from the supports of a swing set to make it too fat for them to want to sit on. The only thing that works (other than birdshot) is to make the surface unattractive. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 07/06/2020 17:15, Andy Durbin wrote: > I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other. > > Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me. > > So how to keep birds of a mag loop without lowing the Q? > > 73, > Andy k3wyc > > > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com > From ray2.s at btinternet.com Sun Jun 7 10:42:40 2020 From: ray2.s at btinternet.com (Ray Spreadbury) Date: Sun, 7 Jun 2020 15:42:40 +0100 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed Message-ID: <00f101d63cd9$e5770280$b0650780$@btinternet.com> Hi Buck What did I do to fix it? Well I left the K3S disconnected for an hour or so while I read the "trouble shooting" sections in the owners manuals. I decided to change the power supply & use a different PC & a different USB cable. To my surprise the K3S then started normally & with the new PC I was able to download a new copy of the Utility program & the latest firmware. This connected immediately to the K3S. So, what was wrong & why did it not work before? I have absolutely no idea! 73 Ray G3XLG From ai4ns.mike at gmail.com Sun Jun 7 10:44:09 2020 From: ai4ns.mike at gmail.com (Mike Short) Date: Sun, 7 Jun 2020 09:44:09 -0500 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: Make a cage using non-conducting mesh and pvc pipe to put over the antenna. On Sun, Jun 7, 2020 at 09:16 Andy Durbin wrote: > I use a home brew mag loop on 30 m band and work into Asia most mornings > with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes > instantly detuned when a dove perches on top of it. SWR jumps instantly to > > 3.0:1 and trips my High SWR monitor. The birds look stupid but they > are smart enough not to straddle the loop opening. I imagine full loop > voltage between their legs would de-tune them a bit but they just perch one > side or the other. > > Damn dove nearly cost me a QSO with JD1 this morning and that was new DX > for 30 m. I tail ended with FT8, he came back, I started to send my > report, High SWR trip, run to back door to chase the dove away, and got > back before JD1 had given up on me. > > So how to keep birds of a mag loop without lowing the Q? > > 73, > Andy k3wyc > > > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ai4ns.mike at gmail.com > From dave at nk7z.net Sun Jun 7 10:47:33 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 7 Jun 2020 07:47:33 -0700 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: Add upward pointing non-metallic pins along the top half of the loop. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 6/7/20 7:15 AM, Andy Durbin wrote: > I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other. > > Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me. > > So how to keep birds of a mag loop without lowing the Q? > > 73, > Andy k3wyc > > > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at nk7z.net > From rocketnj at gmail.com Sun Jun 7 10:50:16 2020 From: rocketnj at gmail.com (Dave) Date: Sun, 7 Jun 2020 10:50:16 -0400 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: <7ac90e5c-513d-cb63-81f6-75accb799d25@gmail.com> References: <7ac90e5c-513d-cb63-81f6-75accb799d25@gmail.com> Message-ID: Victor?s idea is very good. Some kind of material to create spikes, or a surface where they cannot perch. II think the cat would want to wander the neighborhood ;-) Dave wo2x Dave wo2x Sent from my iPad > On Jun 7, 2020, at 10:35 AM, Victor Rosenthal 4X6GP wrote: > > ?Owls don't work unless (maybe) you can mechanize it so that the wings flap and it hoots. > > I have a roof with pigeon issues, and the only thing that works is to make the surface unattractive to them. If there is some way you could attach spikes to the top surfaces... maybe superglue broken glass to it? Or wrap it with fiberglass insulation, or use that plastic stuff used to protect kids from the supports of a swing set to make it too fat for them to want to sit on. > > The only thing that works (other than birdshot) is to make the surface unattractive. > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > CWops no. 5 > http://www.qsl.net/k2vco/ >> On 07/06/2020 17:15, Andy Durbin wrote: >> I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other. >> Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me. >> So how to keep birds of a mag loop without lowing the Q? >> 73, >> Andy k3wyc >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k2vco.vic at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rocketnj at gmail.com From k7im at icloud.com Sun Jun 7 10:54:04 2020 From: k7im at icloud.com (Michael K Bottles) Date: Sun, 7 Jun 2020 07:54:04 -0700 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: Reflective sparkly tapes seem to keep birds off my boats. Cheap to buy on Amazon. Search for ?bird repellent?. de K7IM Sent from my iPad > On Jun 7, 2020, at 07:48, Dave Cole wrote: > > ?Add upward pointing non-metallic pins along the top half of the loop. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > >> On 6/7/20 7:15 AM, Andy Durbin wrote: >> I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other. >> Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me. >> So how to keep birds of a mag loop without lowing the Q? >> 73, >> Andy k3wyc >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to dave at nk7z.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7im at icloud.com From jfrake73 at gmail.com Sun Jun 7 11:07:24 2020 From: jfrake73 at gmail.com (jack frake) Date: Sun, 7 Jun 2020 11:07:24 -0400 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: Try wire raps cut to leave about 1 inch protruding, maybe 2 or 3 inches apart. Wouldn't RF burn keep them away? On Sun, Jun 7, 2020, 10:54 AM Michael K Bottles via Elecraft < elecraft at mailman.qth.net> wrote: > Reflective sparkly tapes seem to keep birds off my boats. > Cheap to buy on Amazon. Search for ?bird repellent?. > de K7IM > > Sent from my iPad > > > On Jun 7, 2020, at 07:48, Dave Cole wrote: > > > > ?Add upward pointing non-metallic pins along the top half of the loop. > > > > 73, and thanks, > > Dave (NK7Z) > > https://www.nk7z.net > > ARRL Volunteer Examiner > > ARRL Technical Specialist > > ARRL Asst. Director, NW Division, Technical Resources > > > >> On 6/7/20 7:15 AM, Andy Durbin wrote: > >> I use a home brew mag loop on 30 m band and work into Asia most > mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but > becomes instantly detuned when a dove perches on top of it. SWR jumps > instantly to > 3.0:1 and trips my High SWR monitor. The birds look > stupid but they are smart enough not to straddle the loop opening. I > imagine full loop voltage between their legs would de-tune them a bit but > they just perch one side or the other. > >> Damn dove nearly cost me a QSO with JD1 this morning and that was new > DX for 30 m. I tail ended with FT8, he came back, I started to send my > report, High SWR trip, run to back door to chase the dove away, and got > back before JD1 had given up on me. > >> So how to keep birds of a mag loop without lowing the Q? > >> 73, > >> Andy k3wyc > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to dave at nk7z.net > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to k7im at icloud.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jfrake73 at gmail.com From kg7vq01 at gmail.com Sun Jun 7 11:53:21 2020 From: kg7vq01 at gmail.com (Russ Edelen) Date: Sun, 7 Jun 2020 09:53:21 -0600 Subject: [Elecraft] OT Bluetooth Serial adapters Message-ID: There is a wealth of knowledge and experience within this group. Has anyone used a Bluetooth serial adapter? I am considering one for my mobile Kenwood d-710 to utilize an android tablet. I see there are many implementations but I'm not sure if it is worthy of consideration. Thanks for any thoughts. Russ KG7VQ From augie.hansen at comcast.net Sun Jun 7 11:56:25 2020 From: augie.hansen at comcast.net (Augie "Gus" Hansen) Date: Sun, 7 Jun 2020 09:56:25 -0600 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: <6359b2a1-d283-f658-f2a8-0bb9c6e24e69@comcast.net> On 6/7/2020 8:15 AM, Andy Durbin wrote: > So how to keep birds of a mag loop without lowing the Q? I had a similar problem with one of my early mag loop attempts about 20 years ago. If your loop is a single turn type you could arrange for the tuning cap to be at the bottom with the coupling loop at the top. That puts the voltage-neutral point where the birds will perch, and they will have no effect on the tuning. The birds don't bother my two-turn mag loop (pix on my QRZ page) at all these days because they prefer to perch on the LPDA on the main tower. Gus Hansen KB0YH From bbaines at mac.com Sun Jun 7 12:11:33 2020 From: bbaines at mac.com (Barry Baines) Date: Sun, 7 Jun 2020 11:11:33 -0500 Subject: [Elecraft] OT Bluetooth Serial adapters In-Reply-To: References: Message-ID: <505ECE8D-2F31-4074-B1C6-A72E2AFBEC44@mac.com> RussL > On Jun 7, 2020, at 10:53 AM, Russ Edelen wrote: > > There is a wealth of knowledge and experience within this group. Has anyone used a Bluetooth serial adapter? I am considering one for my mobile Kenwood d-710 to utilize an android tablet. > > I see there are many implementations but I'm not sure if it is worthy of consideration. Some things to consider: 1. From what I can tell, most of these devices are designed to be plugged into a computer. a. Presumably you?d attach the adapter to the RS232 port of the D710. So the first question is how you?d power it. Power would likely have to come from a USB charger. b. How do you configure it? Would you attach it to a computer, configure the settings and would the settings be retained by the device (not the computer) when the device is powered down and removed to be reconnected to the D710? 2. The next question is configuring the Android: a. What software are you intending to use on the Android? Does it use a com port? b. Is there a way to configure a bluetooth connection as being a com port? c. Would the software recognize a bluetooth input as a comport? I don?t have experience with these devices. My suggestion is to first look at the Android and the software you intend to use with the D710 to determine whether it has the capability to recognize a CompPort connection via Bluetooth. Second, when looking at these devices, look at their compatibility in terms of being connected to a non-PC. Hope this helps, Barry Baines, WD4ASW Keller, TX > > Thanks for any thoughts. > > Russ > KG7VQ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to bbaines at mac.com From k2te at juno.com Sun Jun 7 12:11:03 2020 From: k2te at juno.com (k2te at juno.com) Date: Sun, 7 Jun 2020 16:11:03 +0000 Subject: [Elecraft] [OT] Birds and DX Message-ID: Contact the Audobon Society to see if you can have a nest for a bird of prey (falcon perhaps). Hopefully, it is one that will like crows as well... 73 de Ed ____________________________________________________________ Sponsored by https://www.newser.com/?utm_source=part&utm_medium=uol&utm_campaign=rss_taglines_more Cities Roll Back Police Tactics, Tear Gas http://thirdpartyoffers.juno.com/TGL3141/5edd11db52ff411db60bast01vuc1 Earth Marks a Grim Toll http://thirdpartyoffers.juno.com/TGL3141/5edd11db6df3c11db60bast01vuc2 New Cop Killings Spark Outrage, Manslaughter Charge http://thirdpartyoffers.juno.com/TGL3141/5edd11db8880311db60bast01vuc3 From gibertc at hotmail.com Sun Jun 7 12:55:21 2020 From: gibertc at hotmail.com (Christophe GIBERT) Date: Sun, 7 Jun 2020 16:55:21 +0000 Subject: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. In-Reply-To: <5a1a0260-831f-b1d5-51a4-acbda799f45b@embarqmail.com> References: , <5a1a0260-831f-b1d5-51a4-acbda799f45b@embarqmail.com> Message-ID: Hi Don, I've made some troubleshooting today. Without the KAT2, I've got no power on 10 meters. Visually all is good at bandpass filter for 10/12 meters. I've remade some joints but the problem remains. With the troubleshooting of page 14, here are the values : U10 pin 4 : 0.012 Vrms U9 pin 6 : 0.293 Vrms W6 : 0 or near 0 V So in S1 anode : 0 V or near... It seems to incriminate the bandpass filter or am I wrong ? Please tell ... Thanks a lot. -- Chris ________________________________ De : Don Wilhelm Envoy? : jeudi 4 juin 2020 17:34 ? : Christophe GIBERT ; Elecraft Support ; elecraft at mailman.qth.net Objet : Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. Chris, The LoP message indicates that there is not enough power to tune the KAT2. As your first troubleshooting test, unplug the KAT2 (both cables) and try again - connect a dummy load to the lower BNC jack on the base K2. See if you get power output on 10 meters. If not, look carefully at the bandpass filter for 10/12 meters. If the bandpass filter is OK, then you will have to do Transmit Signal Tracing. Build the RF Probe if you have not already done that and turn to the Troubleshooting appendix in the manual. Do the troubleshooting on page 14. Use 10 meters instead of 40 meters, and tell me at which point the RF voltage is significantly (more than 10%) less than the expected voltage. 73, Don W3FPR On 6/4/2020 9:59 AM, Christophe GIBERT wrote: > Hi folks, I'm done in the building of my #7855 K2 and his KAT2. > > I've got a problem on 10 meters. > > For example I put the VFO on 28 360 Khz and I press down TUNE, to tune. > > The screen shows a "Low P" message. When I try to transmit on this band, where is no power at all, the S Meter not move at all. (Problem with my antenna connected even with a good 50 ohms dummy load). All is good on the other bands. > > My K2 is KAT2 and KSB2 equiped. > > Some idea on where investigate ? From donwilh at embarqmail.com Sun Jun 7 13:12:13 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 7 Jun 2020 13:12:13 -0400 Subject: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. In-Reply-To: References: <5a1a0260-831f-b1d5-51a4-acbda799f45b@embarqmail.com> Message-ID: Chris, Yes, the bandpass filter seems to be the problem. Do you have the correct inductors at L12 and L13 - they should have a narrow slug adjustment slot. Are the capacitors C43 and C47 actually 33 pF (marked either "33" or "330"). Are capacitors C42 and C48 actually 330 pF (marked "331"). Are you able to tune 12 meters?? The trimmers at C44 and C46 should have red bodies. 73, Don W3FPR On 6/7/2020 12:55 PM, Christophe GIBERT wrote: > Hi Don, I've made some troubleshooting today. > > Without the KAT2, I've got no power on 10 meters. > > Visually all is good at bandpass filter for 10/12 meters. I've remade > some joints but the problem remains. > > With the troubleshooting of page 14, here are the values : > > U10 pin 4 : 0.012 Vrms > U9 pin 6 : 0.293 Vrms > W6 : 0 or near 0 V > So in S1 anode : 0 V or near... It seems to incriminate the bandpass > filter or am I wrong ? > > Please tell ... > > Thanks a lot. > > -- > Chris > ------------------------------------------------------------------------ > *De :* Don Wilhelm > *Envoy? :* jeudi 4 juin 2020 17:34 > *? :* Christophe GIBERT ; Elecraft Support > ; elecraft at mailman.qth.net > > *Objet :* Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit > power. > Chris, > > The LoP message indicates that there is not enough power to tune the KAT2. > > As your first troubleshooting test, unplug the KAT2 (both cables) and > try again - connect a dummy load to the lower BNC jack on the base K2. > > See if you get power output on 10 meters.? If not, look carefully at the > bandpass filter for 10/12 meters. > > If the bandpass filter is OK, then you will have to do Transmit Signal > Tracing.? Build the RF Probe if you have not already done that and turn > to the Troubleshooting appendix in the manual.? Do the troubleshooting > on page 14.? Use 10 meters instead of 40 meters, and tell me at which > point the RF voltage is significantly (more than 10%) less than the > expected voltage. > > 73, > Don W3FPR > > On 6/4/2020 9:59 AM, Christophe GIBERT wrote: > > Hi folks, I'm done in the building of my #7855 K2 and his KAT2. > > > > I've got a problem on 10 meters. > > > > For example I put the VFO on 28 360 Khz and I press down TUNE, to tune. > > > > The screen shows a "Low P" message. When I try to transmit on this > band, where is no power at all, the S Meter not move at all. (Problem > with my antenna connected even with a good 50 ohms dummy load). All is > good on the other bands. > > > > My K2 is KAT2 and KSB2 equiped. > > > > Some idea on where investigate ? From gibertc at hotmail.com Sun Jun 7 13:29:39 2020 From: gibertc at hotmail.com (Christophe GIBERT) Date: Sun, 7 Jun 2020 17:29:39 +0000 Subject: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. In-Reply-To: References: <5a1a0260-831f-b1d5-51a4-acbda799f45b@embarqmail.com> , Message-ID: Thanks Don for the quick answer! L12 and 13 have the narrow slug adjustment slot. C43 and C47 are 33pF C42 and C48 are 330 PF C44 and C46 are yellow. Like C32 and C34. But C21 and C23 are red ... Should C21 and C23 been yellow and C44 and 46 red ? -- Chris ________________________________ De : Don Wilhelm Envoy? : dimanche 7 juin 2020 19:12 ? : Christophe GIBERT ; Elecraft Support ; elecraft at mailman.qth.net Objet : Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. Chris, Yes, the bandpass filter seems to be the problem. Do you have the correct inductors at L12 and L13 - they should have a narrow slug adjustment slot. Are the capacitors C43 and C47 actually 33 pF (marked either "33" or "330"). Are capacitors C42 and C48 actually 330 pF (marked "331"). Are you able to tune 12 meters? The trimmers at C44 and C46 should have red bodies. 73, Don W3FPR On 6/7/2020 12:55 PM, Christophe GIBERT wrote: > Hi Don, I've made some troubleshooting today. > > Without the KAT2, I've got no power on 10 meters. > > Visually all is good at bandpass filter for 10/12 meters. I've remade > some joints but the problem remains. > > With the troubleshooting of page 14, here are the values : > > U10 pin 4 : 0.012 Vrms > U9 pin 6 : 0.293 Vrms > W6 : 0 or near 0 V > So in S1 anode : 0 V or near... It seems to incriminate the bandpass > filter or am I wrong ? > > Please tell ... > > Thanks a lot. > > -- > Chris > ------------------------------------------------------------------------ > *De :* Don Wilhelm > *Envoy? :* jeudi 4 juin 2020 17:34 > *? :* Christophe GIBERT ; Elecraft Support > ; elecraft at mailman.qth.net > > *Objet :* Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit > power. > Chris, > > The LoP message indicates that there is not enough power to tune the KAT2. > > As your first troubleshooting test, unplug the KAT2 (both cables) and > try again - connect a dummy load to the lower BNC jack on the base K2. > > See if you get power output on 10 meters. If not, look carefully at the > bandpass filter for 10/12 meters. > > If the bandpass filter is OK, then you will have to do Transmit Signal > Tracing. Build the RF Probe if you have not already done that and turn > to the Troubleshooting appendix in the manual. Do the troubleshooting > on page 14. Use 10 meters instead of 40 meters, and tell me at which > point the RF voltage is significantly (more than 10%) less than the > expected voltage. > > 73, > Don W3FPR > > On 6/4/2020 9:59 AM, Christophe GIBERT wrote: > > Hi folks, I'm done in the building of my #7855 K2 and his KAT2. > > > > I've got a problem on 10 meters. > > > > For example I put the VFO on 28 360 Khz and I press down TUNE, to tune. > > > > The screen shows a "Low P" message. When I try to transmit on this > band, where is no power at all, the S Meter not move at all. (Problem > with my antenna connected even with a good 50 ohms dummy load). All is > good on the other bands. > > > > My K2 is KAT2 and KSB2 equiped. > > > > Some idea on where investigate ? From nv4c.ian at gmail.com Sun Jun 7 13:49:13 2020 From: nv4c.ian at gmail.com (Ian Kahn, NV4C) Date: Sun, 7 Jun 2020 13:49:13 -0400 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: <00f101d63cd9$e5770280$b0650780$@btinternet.com> References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> Message-ID: <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> Ray, By any chance did your first computer receive any updates from Microsoft recently? MS updates are well-known to completely bugger custom settings, including COM port settings. Just a thought. 73 de, Ian, NV4C On 6/7/20 10:42 AM, Ray Spreadbury via Elecraft wrote: > Hi Buck > > What did I do to fix it? > > Well I left the K3S disconnected for an hour or so while I read the "trouble > shooting" sections in the owners manuals. I decided to change the power > supply & use a different PC & a different USB cable. > > To my surprise the K3S then started normally & with the new PC I was able to > download a new copy of the Utility program & the latest firmware. This > connected immediately to the K3S. > > So, what was wrong & why did it not work before? > > I have absolutely no idea! > > 73 Ray G3XLG > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nv4c.ian at gmail.com From donwilh at embarqmail.com Sun Jun 7 14:05:58 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 7 Jun 2020 14:05:58 -0400 Subject: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. In-Reply-To: References: <5a1a0260-831f-b1d5-51a4-acbda799f45b@embarqmail.com> Message-ID: <129534ce-836c-eaca-a847-f872f3888d35@embarqmail.com> Chris, Remove the red ones from C21 and C23, and put the yellow ones in those positions.? The red ones go at C44 and C46. That is indicated in the errata pages.? You should read the errata and mark the changes in the manual. Yes, I realize that the manual states that C21 and C23 have a red marking, but that was long ago before the trimmers were changed. Now the errata is the only correct source of the latest information. 73, Don W3FPR On 6/7/2020 1:29 PM, Christophe GIBERT wrote: > Thanks Don for the quick answer! > > L12 and 13 have the narrow slug adjustment slot. > C43 and C47 are 33pF > C42 and C48 are 330 PF > > C44 and C46 are yellow. Like C32 and C34. But C21 and C23 are red ... > Should C21 and C23 been yellow and C44 and 46 red ? > > -- > Chris > ------------------------------------------------------------------------ > *De :* Don Wilhelm > *Envoy? :* dimanche 7 juin 2020 19:12 > *? :* Christophe GIBERT ; Elecraft Support > ; elecraft at mailman.qth.net > > *Objet :* Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit > power. > Chris, > > Yes, the bandpass filter seems to be the problem. > Do you have the correct inductors at L12 and L13 - they should have a > narrow slug adjustment slot. > Are the capacitors C43 and C47 actually 33 pF (marked either "33" or > "330"). > Are capacitors C42 and C48 actually 330 pF (marked "331"). > > Are you able to tune 12 meters?? The trimmers at C44 and C46 should have > red bodies. > > 73, > Don W3FPR > > On 6/7/2020 12:55 PM, Christophe GIBERT wrote: > > Hi Don, I've made some troubleshooting today. > > > > Without the KAT2, I've got no power on 10 meters. > > > > Visually all is good at bandpass filter for 10/12 meters. I've remade > > some joints but the problem remains. > > > > With the troubleshooting of page 14, here are the values : > > > > U10 pin 4 : 0.012 Vrms > > U9 pin 6 : 0.293 Vrms > > W6 : 0 or near 0 V > > So in S1 anode : 0 V or near... It seems to incriminate the bandpass > > filter or am I wrong ? > > > > Please tell ... > > > > Thanks a lot. > > > > -- > > Chris > > ------------------------------------------------------------------------ > > *De :* Don Wilhelm > > *Envoy? :* jeudi 4 juin 2020 17:34 > > *? :* Christophe GIBERT ; Elecraft Support > > ; elecraft at mailman.qth.net > > > > *Objet :* Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit > > power. > > Chris, > > > > The LoP message indicates that there is not enough power to tune the > KAT2. > > > > As your first troubleshooting test, unplug the KAT2 (both cables) and > > try again - connect a dummy load to the lower BNC jack on the base K2. > > > > See if you get power output on 10 meters.? If not, look carefully at the > > bandpass filter for 10/12 meters. > > > > If the bandpass filter is OK, then you will have to do Transmit Signal > > Tracing.? Build the RF Probe if you have not already done that and turn > > to the Troubleshooting appendix in the manual.? Do the troubleshooting > > on page 14.? Use 10 meters instead of 40 meters, and tell me at which > > point the RF voltage is significantly (more than 10%) less than the > > expected voltage. > > > > 73, > > Don W3FPR > > > > On 6/4/2020 9:59 AM, Christophe GIBERT wrote: > > > Hi folks, I'm done in the building of my #7855 K2 and his KAT2. > > > > > > I've got a problem on 10 meters. > > > > > > For example I put the VFO on 28 360 Khz and I press down TUNE, to > tune. > > > > > > The screen shows a "Low P" message. When I try to transmit on this > > band, where is no power at all, the S Meter not move at all. (Problem > > with my antenna connected even with a good 50 ohms dummy load). All is > > good on the other bands. > > > > > > My K2 is KAT2 and KSB2 equiped. > > > > > > Some idea on where investigate ? > From gibertc at hotmail.com Sun Jun 7 14:09:55 2020 From: gibertc at hotmail.com (Christophe GIBERT) Date: Sun, 7 Jun 2020 18:09:55 +0000 Subject: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. In-Reply-To: <129534ce-836c-eaca-a847-f872f3888d35@embarqmail.com> References: <5a1a0260-831f-b1d5-51a4-acbda799f45b@embarqmail.com> , <129534ce-836c-eaca-a847-f872f3888d35@embarqmail.com> Message-ID: I've read the errata but missed this information ? Once done, I need to realigne the receiver and the transmitter on all the bands I think ? Once more Don, thanks a lot ! ________________________________ De : Don Wilhelm Envoy? : dimanche 7 juin 2020 20:05 ? : Christophe GIBERT ; Elecraft Support ; elecraft at mailman.qth.net Objet : Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit power. Chris, Remove the red ones from C21 and C23, and put the yellow ones in those positions. The red ones go at C44 and C46. That is indicated in the errata pages. You should read the errata and mark the changes in the manual. Yes, I realize that the manual states that C21 and C23 have a red marking, but that was long ago before the trimmers were changed. Now the errata is the only correct source of the latest information. 73, Don W3FPR On 6/7/2020 1:29 PM, Christophe GIBERT wrote: > Thanks Don for the quick answer! > > L12 and 13 have the narrow slug adjustment slot. > C43 and C47 are 33pF > C42 and C48 are 330 PF > > C44 and C46 are yellow. Like C32 and C34. But C21 and C23 are red ... > Should C21 and C23 been yellow and C44 and 46 red ? > > -- > Chris > ------------------------------------------------------------------------ > *De :* Don Wilhelm > *Envoy? :* dimanche 7 juin 2020 19:12 > *? :* Christophe GIBERT ; Elecraft Support > ; elecraft at mailman.qth.net > > *Objet :* Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit > power. > Chris, > > Yes, the bandpass filter seems to be the problem. > Do you have the correct inductors at L12 and L13 - they should have a > narrow slug adjustment slot. > Are the capacitors C43 and C47 actually 33 pF (marked either "33" or > "330"). > Are capacitors C42 and C48 actually 330 pF (marked "331"). > > Are you able to tune 12 meters? The trimmers at C44 and C46 should have > red bodies. > > 73, > Don W3FPR > > On 6/7/2020 12:55 PM, Christophe GIBERT wrote: > > Hi Don, I've made some troubleshooting today. > > > > Without the KAT2, I've got no power on 10 meters. > > > > Visually all is good at bandpass filter for 10/12 meters. I've remade > > some joints but the problem remains. > > > > With the troubleshooting of page 14, here are the values : > > > > U10 pin 4 : 0.012 Vrms > > U9 pin 6 : 0.293 Vrms > > W6 : 0 or near 0 V > > So in S1 anode : 0 V or near... It seems to incriminate the bandpass > > filter or am I wrong ? > > > > Please tell ... > > > > Thanks a lot. > > > > -- > > Chris > > ------------------------------------------------------------------------ > > *De :* Don Wilhelm > > *Envoy? :* jeudi 4 juin 2020 17:34 > > *? :* Christophe GIBERT ; Elecraft Support > > ; elecraft at mailman.qth.net > > > > *Objet :* Re: [Elecraft] K2 showing Lo P on 10 meters, and no transmit > > power. > > Chris, > > > > The LoP message indicates that there is not enough power to tune the > KAT2. > > > > As your first troubleshooting test, unplug the KAT2 (both cables) and > > try again - connect a dummy load to the lower BNC jack on the base K2. > > > > See if you get power output on 10 meters. If not, look carefully at the > > bandpass filter for 10/12 meters. > > > > If the bandpass filter is OK, then you will have to do Transmit Signal > > Tracing. Build the RF Probe if you have not already done that and turn > > to the Troubleshooting appendix in the manual. Do the troubleshooting > > on page 14. Use 10 meters instead of 40 meters, and tell me at which > > point the RF voltage is significantly (more than 10%) less than the > > expected voltage. > > > > 73, > > Don W3FPR > > > > On 6/4/2020 9:59 AM, Christophe GIBERT wrote: > > > Hi folks, I'm done in the building of my #7855 K2 and his KAT2. > > > > > > I've got a problem on 10 meters. > > > > > > For example I put the VFO on 28 360 Khz and I press down TUNE, to > tune. > > > > > > The screen shows a "Low P" message. When I try to transmit on this > > band, where is no power at all, the S Meter not move at all. (Problem > > with my antenna connected even with a good 50 ohms dummy load). All is > > good on the other bands. > > > > > > My K2 is KAT2 and KSB2 equiped. > > > > > > Some idea on where investigate ? > From ac5p at sbcglobal.net Sun Jun 7 14:25:52 2020 From: ac5p at sbcglobal.net (Mike Maloney) Date: Sun, 7 Jun 2020 18:25:52 +0000 (UTC) Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: <1816467503.406867.1591554352114@mail.yahoo.com> Stick some toothpicks in strip of styrofoam.?? Mike AC5P On Sunday, June 7, 2020, 11:14:11 AM CDT, k2te at juno.com wrote: Contact the Audobon Society to see if you can have a nest for a bird of prey (falcon perhaps).? Hopefully, it is one that will like crows as well... 73 de Ed ____________________________________________________________ Sponsored by https://www.newser.com/?utm_source=part&utm_medium=uol&utm_campaign=rss_taglines_more Cities Roll Back Police Tactics, Tear Gas http://thirdpartyoffers.juno.com/TGL3141/5edd11db52ff411db60bast01vuc1 Earth Marks a Grim Toll http://thirdpartyoffers.juno.com/TGL3141/5edd11db6df3c11db60bast01vuc2 New Cop Killings Spark Outrage, Manslaughter Charge http://thirdpartyoffers.juno.com/TGL3141/5edd11db8880311db60bast01vuc3 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ac5p at sbcglobal.net From n6kr at elecraft.com Sun Jun 7 14:30:41 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 7 Jun 2020 11:30:41 -0700 Subject: [Elecraft] Peaks, parks, and prayers: CW & SSB islands in a digital sea Message-ID: Every day, hams worldwide, young and old, summit mountains and hills carrying the lightest possible load. They earn every calorie burned, and are rewarded with vistas most people never see. Like all adventurers, they proudly display nature's merit badges: scrapes, bruises, and stings. And then they go back for more. The number of peaks "bagged" by some operators is staggering, as is their level of fitness and endurance. In addition to those formally pursuing peaks (via SOTA, or Summits on the Air), there are many others who operate casually from hiking trails and parks. Some operate while they walk (pedestrian mobile, HT-style or HFpack). Some operate bicycle-mobile. I'm writing this out of admiration for, and in solidarity with, all of those who commune equally with nature and the ionosphere. * * * There's one thing these hams have in common. Upon arriving at their destination -- tired, sweaty, hungry, elated, or some combination of these -- they hope to make a few QSOs. To experience a synthesis of the outdoors and the radio art. But it isn't always easy. While many hams have transitioned to computer-based digital modes such as FT8, others have not. This includes ultralight travelers, as well as those who seek the satisfaction of home-building simple gear and putting it on the air. For portable operators in particular, simplicity and pragmatics often dictate the use of CW and SSB. It may not be desirable or even possible to lug a laptop in your pack, find a place to set it up, and attach its myriad cables. You might struggle to see a washed-out LCD screen in direct sunlight. High winds might capture an open laptop and sweep your gear away. Many, instead, choose traditional modes. These allow for small, integrated gear that can often be hand-held. And there's the bonus of immediacy such modes offer, without mediation, without constraints on duration or content. To put yourself in their shoes, imagine that you just trekked several miles, much of it uphill. To accommodate the need for food, water, clothing, and safety gear, you've brought a minimum amount of radio equipment. It might be a 3-ounce CW QRP radio; an HF-VHF-UHF portable, an all-band/all-mode HF HT (like a KX2), or your latest home-brew transceiver. When you arrive at your peak, you survey the spot for a suitable operating position. It might be a large, flat rock; a patch of ground not infested with ants and spiders; or a shady spot with a downslope in a favored direction. You might climb a tree. Shelter beneath a ridge. Or dangle your legs and antenna from a cliff. Speaking of which, deployment of antennas presents another challenge. You could spin-cast or toss a wire, hoping for a good landing, without snags. You might wedge the feet of a tripod into rocks, then attach a small magnetic loop. Or you might use a simple telescoping whip. All that effort. Now it's time to turn on the radio. Virtually every time I've gone on such an outing, I've made contacts. At times I've been lucky. Maybe it's operating experience: knowing who to call. But sometimes there's no one around on CW or SSB. Is it propagation? Or is everyone swimming in the digital sea, not paying attention to you, on your remote island? You can spot yourself on RBN (reverse beacon network), or prearrange skeds. But what many of us hope for is that burst of contacts. Feeling like a rare DX station. Feeling that slap-on-the-back-at-a-distance that says: "We hear you." * * * You can, of course, partake of this experience yourself. Whether you do or not, though: Please consider listening for those who do. Formal activations are announced in advance. See for example: https://www.sota.org.uk/ The band segments used are very small, or even a single frequency, making it easy to monitor them while you engage in other activity around the shack or on the air. You can use SOTA spotting websites, or just keep a receiver on one of the watering holes. (The Elecraft K3/K3S/KX2/KX3 make this easy, with built-in scanning. You can set the rig up for either muted or live audio scans, the latter making it easier to hear weak signals when they pop up.) One final thought. In this pandemic era, some of us have had more time to get on the air, and some of us have had more chance to get outside. Let's do both. At the same time. 73, Wayne N6KR From wes_n7ws at triconet.org Sun Jun 7 14:32:41 2020 From: wes_n7ws at triconet.org (Wes) Date: Sun, 7 Jun 2020 11:32:41 -0700 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <5bc4a874-2c2e-9941-2433-84a0bd8513ce@windstream.net> References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> <1e2a6bfd-ac71-f091-471 7-2c804dbb8e9e@nk7z.net> <3774ecc2-3006-b05d-a768-7ba3a44f6268@embarqmail.com> <5fd79a25-663e-26fc-3fef-2de0220748bf@blomand.net> <5bc4a874-2c2e-9941-2433-84a0bd8513ce@windstream.net> Message-ID: <6c8464b3-af67-a0f1-8665-d88601f9e45a@triconet.org> If you look at my earlier message in this thread, you'll see the link to nabble and my post from 11 years ago where I describe this method. :-) Wes? N7WS On 6/7/2020 6:03 AM, Randy Farmer wrote: > The best way I've found to calibrate the K3 reference oscillator is to use the > 500 Hz and 600 Hz audio tones transmitted by WWV. I put the line out audio > through a sound card and look at it with SpectrumLab. Tune in WWV in USB or > LSB mode and tweak the reference trim until the tones are correct when you > switch sidebands with the dial at precisely XX.000 000 MHz. I've found that > you can't get precise agreement between sidebands, probably because of > quantization limits in the synthesizer, but it will certainly be less than a > couple of Hertz. This is plenty accurate for amateur (or probably any other > kind) of service. > > 73... > Randy, W8FN > > On 6/6/2020 10:20 PM, Bob McGraw K4TAX wrote: >> From my take, it is "ham radio" therefore +/-1 Hz. should be good enough for >> most operations.? After all, the K3S resolution is 1 Hz., +/-1 count as I see >> it. ? I can keep mine +/-2 or 3 Hz on most bands. >> >> I use WWV with the radio in CW mode and CWT on, tune close to WWV and press >> SPOT.??? If it settles on the WWV frequency that's good.? If it is off a few >> Hz, then I tweak the REF CAL up or down a few Hz until I get the accuracy I >> wish by repeating the process several times.? Still I find +/- 1 Hz is about >> it, even with the high stability TXCO and very adequate warm-up time of about >> 2 hrs. >> >> If one needs something more accurate, then Don is correct, test equipment is >> the way to go.? And expect to spend big bucks for good quality equipment that >> IS traceable to NIST.?? If the NIST document or calibration is more than 1 >> year old, the results will be questionable. >> >> I wrote an article which was published in QST, Sept 2015.?? It deals with >> "Transmit and Receive On Frequency".? It shows that digital readouts are just >> that, readouts,? and they are not frequency determining or measuring >> circuits.??? And when it is accurate on one band it may not have the same >> accuracy on another band. >> >> 73 >> >> Bob, K4TAX >> >> >> On 6/6/2020 5:20 PM, Don Wilhelm wrote: >>> With the main K3 fine tuning at 1 Hz steps, I don't know that 0.1Hz or even >>> 0.25Hz doppler shift will matter much in the final result. >>> >>> My frequency counter is good to 10 exp-9 which equates to +/-0.1 Hz at the >>> TCXO frequency, so the WWV method provides as good or better accuracy, even >>> considering the doppler shift possibility. >>> >>> The main problem is chasing the beat note down to a stable solid note. You >>> usually can't truly get there, but you can get close enough that you hear >>> about 10 or 20 seconds between peaks. Close enough for me. >>> >>> It can be quite expensive to obtain stability better than the K3S in an >>> analog oscillator.? My HP8640B signal generator will do that, but it takes >>> at least a 3 hour warmup before it becomes stable.? Yes, all the internal >>> enclosures in my '8640 have covers with all the screws installed - that >>> helps.? OK, that is 'old iron', but I am not going to spend several $10,000 >>> for something better.? I have better things to do with my money, and no >>> longer have access to modern lab quality equipment to achieve that kind of >>> stability. >>> >>> We have a ham band transceiver - not a precision lab instrument. As long as >>> we can stay inside our ham bands, that is all that matters to me.? I would >>> not put a carrier exactly on 7,000.00 kHz with any transceiver. >>> >>> 73, >>> Don W3FPR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wes_n7ws at triconet.org From k2asp at kanafi.org Sun Jun 7 14:32:54 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sun, 7 Jun 2020 11:32:54 -0700 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: <972DEFEC-2733-4A0F-A083-05870A1D5A1B@gmail.com> References: <972DEFEC-2733-4A0F-A083-05870A1D5A1B@gmail.com> Message-ID: On 6/7/2020 7:19 AM, Dave wrote: >> So how to keep birds of a mag loop without lowing the Q? > Somehow figure out how to mount a fake owl on top? I had a "fake owl" (from the HRO catalog) mounted on the peak of the A-frame roof over the doorway of my former "House of 13 Antennas". The crows loved to dive-bomb and perch on it while ignoring all the other places provided by the antennas and left us plenty of "souvenirs" as a token of their affection.. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From k2asp at kanafi.org Sun Jun 7 14:36:53 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sun, 7 Jun 2020 11:36:53 -0700 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: On 6/7/2020 7:44 AM, Mike Short wrote: > Make a cage using non-conducting mesh and pvc pipe to put over the antenna. My loop is set on a covered porch. Birds don't rest on it - neither do radio signals (big disappointment documented elsewhere in this reflector). 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From k2asp at kanafi.org Sun Jun 7 14:44:31 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sun, 7 Jun 2020 11:44:31 -0700 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: <3c717280-a4f2-a236-49c7-6c3db43e6d88@kanafi.org> On 6/7/2020 9:11 AM, k2te at juno.com wrote: > Contact the Audobon Society to see if you can have a nest for a bird of > prey (falcon perhaps). Hopefully, it is one that will like crows as > well... If you think hams are fanatics about ham radio things like DX or contesting, birders exhibit the same reaction about messing with their birds. The wife of one of my ham colleagues is very much a birder and that leads to do some interesting interaction. He put all of his antennas on his van - and no birds perch on it. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From paul at hintlink.com Sun Jun 7 14:53:24 2020 From: paul at hintlink.com (Paul Evans W4/VP9KF) Date: Sun, 7 Jun 2020 14:53:24 -0400 Subject: [Elecraft] [OT] Birds and DX Message-ID: This _always_ works, as proven in a marina on my boat (and those that adopted it!): Take old CD. Drill a small hole near the edge. Dangle from object or anything nearby with thin string. Works when every other possible bird scarer had failed. No birds. No poop. 73, Paul. From jasimmons at pinewooddata.com Sun Jun 7 14:59:53 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Sun, 7 Jun 2020 13:59:53 -0500 Subject: [Elecraft] Key Clicks In-Reply-To: References: <6b6893a1-fa89-db04-837f-43724f694d78@comcast.net> <78050b61-451f-69ec-db52-76fe12cc6592@foothill.net> <5b0d52ca-aea6-21f6-b76c-3374a35705be@pinewooddata.com> <2284cfce-6283-668b-4165-28c4cacb8ccb@gmail.com> Message-ID: <4e6aec50-1a74-8444-97b5-b2ee76491b77@pinewooddata.com> Oh, please, please bring back the CW note of the Drake 4-line! -de John NI0K Bob McGraw K4TAX wrote on 6/6/2020 10:59 PM: > There are actually 2 time elements involved.? First is the time > between key closure and the amp key command.? This is approximately > 3ms of processing time inside the radio.? The second is amp key > command to RF generation out of the radio.? This is the 5ms between > amp key command and RF generation. ?? These are summed together to get > the total time from Key closure to? RF generation of about 8ms. > > One other company to which I'm very familiar,? specs their radio as 15 > ms RF delay.? What is not disclosed is a breakdown of this 15ms,? that > 7 ms of the total time occurs from key closure to amp key command, > thus leaving 8ms from amp key command to RF generation.? This requires > the amp to switch in 7ms or less.?? A mechanical relay is really being > pushed to accomplish this fact. This 15ms delay is not user > adjustable. And the CW rise and fall time is 5ms.? A bit fast for a > really clean signal.??? Another model of the brand offers and > adjustable CW rise and fall time adjustable between 3 - 10 ms.? The > longer time makes for a much cleaner CW signal.? Again the delay from > key closure to RF generation is in the order of 15ms. > > Older amp designs, typically those that do not clearly provide QSK > identification or mode, are typically not suitable for QSK operation. > Thus switching one of these amps at the faster speeds will most likely > cause hot switching, resulting in key clicks and eventually relay > failure. > > I've found the K3S and KPA500 to produce some of the cleanest CW > signals on the bands.?? Timing is the secret and the design team at > Elecraft have focused heavily on this aspect of these products. > > 73 > > Bob, K4TAX > > > On 6/6/2020 10:19 PM, Victor Rosenthal 4X6GP wrote: >> In fact, it's closer to 5-6 ms when set to 8. And of course it >> depends on the amp. A general rule to "set it to 9" is silly. It just >> has to give the relays time to settle down. >> >> >> 73, >> Victor, 4X6GP >> Rehovot, Israel >> Formerly K2VCO >> CWops no. 5 >> http://www.qsl.net/k2vco/ >> On 07-Jun-2020 04:00, David Gilbert wrote: >>> QSK has everything to do with it.? If you hot switch the amp you create >>> sharp waveforms every element even if the K3 keying is soft. The >>> discussion on the contesting forum included comments that the default >>> setting for TXDELAY on the K3 (apparently 008) isn't long enough and >>> that >>> it should be set to 009.? Not sure which amps were being considered. >>> >>> 73, >>> Dave?? AB7E >>> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jasimmons at pinewooddata.com From ardrhi at gmail.com Sun Jun 7 14:58:53 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Sun, 7 Jun 2020 14:58:53 -0400 Subject: [Elecraft] OT Bluetooth Serial adapters In-Reply-To: <505ECE8D-2F31-4074-B1C6-A72E2AFBEC44@mac.com> References: <505ECE8D-2F31-4074-B1C6-A72E2AFBEC44@mac.com> Message-ID: I have a small Bluetooth adapter that I sometimes use. It's about the size of a silver dollar, with a short wire with a 3.5mm TRS plug on it. Since I routinely wear a Bluetooth headset, I can plug the adapter into any 3.5mm TRS output and pair to the transmitter with my headphones, and don't have to deal with yet more wires just for my headphones. The only reason I don't do it more often is that my headphones will only reliably pair with one device at a time. There IS a way to pair it to two devices, but I've found it unreliable and don't use it. It's a help when I have want to connect to a bluetooth speaker, but don't want to use the AUX cable. If I change devices, I can move the transmitter to the new device. The only issue is that it's just as easy to use a jumper cable to the AUX socket on the speaker, and the wire doesn't really cause that much of a problem.. So it's almost more trouble than it's worth. But it DOES work, and works just as well on my KX3 as on anything else. -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Sun, Jun 7, 2020 at 12:12 PM Barry Baines via Elecraft < elecraft at mailman.qth.net> wrote: > RussL > > > On Jun 7, 2020, at 10:53 AM, Russ Edelen wrote: > > > > There is a wealth of knowledge and experience within this group. Has > anyone used a Bluetooth serial adapter? I am considering one for my mobile > Kenwood d-710 to utilize an android tablet. > > > > I see there are many implementations but I'm not sure if it is worthy of > consideration. > > > Some things to consider: > > 1. From what I can tell, most of these devices are designed to be plugged > into a computer. > a. Presumably you?d attach the adapter to the RS232 port of the D710. So > the first question is how you?d power it. Power would likely have to come > from a USB charger. > b. How do you configure it? Would you attach it to a computer, configure > the settings and would the settings be retained by the device (not the > computer) when the device is powered down and removed to be reconnected to > the D710? > > 2. The next question is configuring the Android: > a. What software are you intending to use on the Android? Does it use a > com port? > b. Is there a way to configure a bluetooth connection as being a com port? > c. Would the software recognize a bluetooth input as a comport? > > I don?t have experience with these devices. My suggestion is to first look > at the Android and the software you intend to use with the D710 to > determine whether it has the capability to recognize a CompPort connection > via Bluetooth. Second, when looking at these devices, look at their > compatibility in terms of being connected to a non-PC. > > > Hope this helps, > > Barry Baines, WD4ASW > Keller, TX > > > > > Thanks for any thoughts. > > > > Russ > > KG7VQ > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to bbaines at mac.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com From ardrhi at gmail.com Sun Jun 7 15:02:49 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Sun, 7 Jun 2020 15:02:49 -0400 Subject: [Elecraft] OT Bluetooth Serial adapters In-Reply-To: References: <505ECE8D-2F31-4074-B1C6-A72E2AFBEC44@mac.com> Message-ID: Dang, I misread your post, and didn't see the "serial" part. I don't use BLUETOOTH serial with my KX3, because there's no way to get the pairing code. I DO use a 2.4GHz dedicated RF dongle to a wireless keyboard, that I plug into my PX3. Since it's dedicated, it doesn't need to "pair" to the device, it's just always connected when active. I tried using wired keyboards to use the CW/PSK/RTTY feature of the PX3, but I always got stray RF in the cable, causing unpredictable results, including extra characters in the keyboard buffer that kept the transmit going past when I'd stopped, sometimes indefinitely, since the new output stuffed more garbage into the keyboard buffer. The dedicated wireless doesn't suffer from this, so I can use the keyboard without problems. (And YES, I did try toroids, chokes, etc. No help.) -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Sun, Jun 7, 2020 at 2:58 PM Gwen Patton wrote: > I have a small Bluetooth adapter that I sometimes use. It's about the size > of a silver dollar, with a short wire with a 3.5mm TRS plug on it. Since I > routinely wear a Bluetooth headset, I can plug the adapter into any 3.5mm > TRS output and pair to the transmitter with my headphones, and don't have > to deal with yet more wires just for my headphones. The only reason I don't > do it more often is that my headphones will only reliably pair with one > device at a time. There IS a way to pair it to two devices, but I've found > it unreliable and don't use it. > > It's a help when I have want to connect to a bluetooth speaker, but don't > want to use the AUX cable. If I change devices, I can move the transmitter > to the new device. The only issue is that it's just as easy to use a jumper > cable to the AUX socket on the speaker, and the wire doesn't really cause > that much of a problem.. So it's almost more trouble than it's worth. But > it DOES work, and works just as well on my KX3 as on anything else. > > -=-=-=-=-=-=-=-=- > 73, > Gwen, NG3P > > > On Sun, Jun 7, 2020 at 12:12 PM Barry Baines via Elecraft < > elecraft at mailman.qth.net> wrote: > >> RussL >> >> > On Jun 7, 2020, at 10:53 AM, Russ Edelen wrote: >> > >> > There is a wealth of knowledge and experience within this group. Has >> anyone used a Bluetooth serial adapter? I am considering one for my mobile >> Kenwood d-710 to utilize an android tablet. >> > >> > I see there are many implementations but I'm not sure if it is worthy >> of consideration. >> >> >> Some things to consider: >> >> 1. From what I can tell, most of these devices are designed to be >> plugged into a computer. >> a. Presumably you?d attach the adapter to the RS232 port of the D710. >> So the first question is how you?d power it. Power would likely have to >> come from a USB charger. >> b. How do you configure it? Would you attach it to a computer, >> configure the settings and would the settings be retained by the device >> (not the computer) when the device is powered down and removed to be >> reconnected to the D710? >> >> 2. The next question is configuring the Android: >> a. What software are you intending to use on the Android? Does it use a >> com port? >> b. Is there a way to configure a bluetooth connection as being a com >> port? >> c. Would the software recognize a bluetooth input as a comport? >> >> I don?t have experience with these devices. My suggestion is to first >> look at the Android and the software you intend to use with the D710 to >> determine whether it has the capability to recognize a CompPort connection >> via Bluetooth. Second, when looking at these devices, look at their >> compatibility in terms of being connected to a non-PC. >> >> >> Hope this helps, >> >> Barry Baines, WD4ASW >> Keller, TX >> >> > >> > Thanks for any thoughts. >> > >> > Russ >> > KG7VQ >> > ______________________________________________________________ >> > Elecraft mailing list >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > Help: http://mailman.qth.net/mmfaq.htm >> > Post: mailto:Elecraft at mailman.qth.net >> > >> > This list hosted by: http://www.qsl.net >> > Please help support this email list: http://www.qsl.net/donate.html >> > Message delivered to bbaines at mac.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ardrhi at gmail.com > > From k7im at icloud.com Sun Jun 7 15:07:53 2020 From: k7im at icloud.com (Michael K Bottles) Date: Sun, 7 Jun 2020 12:07:53 -0700 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: Yup, that is a flashy sparkly thing like the ribbon I suggested. Birds don?t seem to like that. Sent from my iPad > On Jun 7, 2020, at 11:54, Paul Evans W4/VP9KF wrote: > > ?This _always_ works, as proven in a marina on my boat (and those that > adopted it!): > > Take old CD. Drill a small hole near the edge. Dangle from object or > anything nearby with thin string. > > Works when every other possible bird scarer had failed. No birds. No poop. > > 73, Paul. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7im at icloud.com From kthreebo at gmail.com Sun Jun 7 15:48:46 2020 From: kthreebo at gmail.com (barry halterman) Date: Sun, 7 Jun 2020 15:48:46 -0400 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> Message-ID: This is a classic case of CRE or Cosmic Ray Effect. No reason, just happens. On Sun, Jun 7, 2020, 1:51 PM Ian Kahn, NV4C wrote: > Ray, > > By any chance did your first computer receive any updates from Microsoft > recently? MS updates are well-known to completely bugger custom > settings, including COM port settings. > > Just a thought. > > 73 de, > > Ian, NV4C > > > On 6/7/20 10:42 AM, Ray Spreadbury via Elecraft wrote: > > Hi Buck > > > > What did I do to fix it? > > > > Well I left the K3S disconnected for an hour or so while I read the > "trouble > > shooting" sections in the owners manuals. I decided to change the power > > supply & use a different PC & a different USB cable. > > > > To my surprise the K3S then started normally & with the new PC I was > able to > > download a new copy of the Utility program & the latest firmware. This > > connected immediately to the K3S. > > > > So, what was wrong & why did it not work before? > > > > I have absolutely no idea! > > > > 73 Ray G3XLG > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to nv4c.ian at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kthreebo at gmail.com > From rmcgraw at blomand.net Sun Jun 7 16:21:13 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 7 Jun 2020 15:21:13 -0500 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> Message-ID: Since Microsoft does not know of every piece of software, on every Windows computer in the world, for simplicity, very often a Windows update will set values to DEFAULT values.? Therefore, it is necessary for the user to set certain parameters to their preferred values after an update.??? I view that this is no fault of Windows, it is just the way they handle updates.??? Unless one is very familiar with the in-depth operation of Windows,? it is wise for anyone to make notes of values, locations and they way one access certain application settings. 73 Bob, K4TAX On 6/7/2020 2:48 PM, barry halterman wrote: > This is a classic case of CRE or Cosmic Ray Effect. No reason, just happens. > > On Sun, Jun 7, 2020, 1:51 PM Ian Kahn, NV4C wrote: > >> Ray, >> >> By any chance did your first computer receive any updates from Microsoft >> recently? MS updates are well-known to completely bugger custom >> settings, including COM port settings. >> >> Just a thought. >> >> 73 de, >> >> Ian, NV4C >> >> >> On 6/7/20 10:42 AM, Ray Spreadbury via Elecraft wrote: >>> Hi Buck >>> >>> What did I do to fix it? >>> >>> Well I left the K3S disconnected for an hour or so while I read the >> "trouble >>> shooting" sections in the owners manuals. I decided to change the power >>> supply & use a different PC & a different USB cable. >>> >>> To my surprise the K3S then started normally & with the new PC I was >> able to >>> download a new copy of the Utility program & the latest firmware. This >>> connected immediately to the K3S. >>> >>> So, what was wrong & why did it not work before? >>> >>> I have absolutely no idea! >>> >>> 73 Ray G3XLG >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to nv4c.ian at gmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kthreebo at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net > From ghyoungman at gmail.com Sun Jun 7 16:44:54 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sun, 7 Jun 2020 16:44:54 -0400 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> Message-ID: <1737BD81-82B4-4400-9CBB-4856E7CD6D02@gmail.com> That would be a terrible way to handle updates. If a user has set specific parameters to meet their needs, Windows should simply leave them alone ? unless they no longer exist in the updated version, or their effect/context has changed. If macOS reset everything to defaults every time there was new version, Apple would find my several Macs in front of the nearest Apple Store, ?kitted out? with a sledge hammer .. :-) Grant NQ5T > On Jun 7, 2020, at 4:21 PM, Bob McGraw K4TAX wrote: > > Since Microsoft does not know of every piece of software, on every Windows computer in the world, for simplicity, very often a Windows update will set values to DEFAULT values. Therefore, it is necessary for the user to set certain parameters to their preferred values after an update. I view that this is no fault of Windows, it is just the way they handle updates. Unless one is very familiar with the in-depth operation of Windows, it is wise for anyone to make notes of values, locations and they way one access certain application settings. > > 73 > > Bob, K4TAX > > On 6/7/2020 2:48 PM, barry halterman wrote: >> This is a classic case of CRE or Cosmic Ray Effect. No reason, just happens. >> >> On Sun, Jun 7, 2020, 1:51 PM Ian Kahn, NV4C wrote: >> >>> Ray, >>> >>> By any chance did your first computer receive any updates from Microsoft >>> recently? MS updates are well-known to completely bugger custom >>> settings, including COM port settings. >>> >>> Just a thought. >>> From jstengrevics at comcast.net Sun Jun 7 16:48:32 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Sun, 7 Jun 2020 16:48:32 -0400 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: <1737BD81-82B4-4400-9CBB-4856E7CD6D02@gmail.com> References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> <1737BD81-82B4-4400-9CBB-4856E7CD6D02@gmail.com> Message-ID: <105A89D3-2CF0-4986-9133-48C7EB61AE7F@comcast.net> Agree. Macs don?t have this problem. John WA1EAZ > On Jun 7, 2020, at 4:44 PM, Grant Youngman wrote: > > That would be a terrible way to handle updates. If a user has set specific parameters to meet their needs, Windows should simply leave them alone ? unless they no longer exist in the updated version, or their effect/context has changed. If macOS reset everything to defaults every time there was new version, Apple would find my several Macs in front of the nearest Apple Store, ?kitted out? with a sledge hammer .. :-) > > Grant NQ5T > >> On Jun 7, 2020, at 4:21 PM, Bob McGraw K4TAX wrote: >> >> Since Microsoft does not know of every piece of software, on every Windows computer in the world, for simplicity, very often a Windows update will set values to DEFAULT values. Therefore, it is necessary for the user to set certain parameters to their preferred values after an update. I view that this is no fault of Windows, it is just the way they handle updates. Unless one is very familiar with the in-depth operation of Windows, it is wise for anyone to make notes of values, locations and they way one access certain application settings. >> >> 73 >> >> Bob, K4TAX >> >> On 6/7/2020 2:48 PM, barry halterman wrote: >>> This is a classic case of CRE or Cosmic Ray Effect. No reason, just happens. >>> >>> On Sun, Jun 7, 2020, 1:51 PM Ian Kahn, NV4C wrote: >>> >>>> Ray, >>>> >>>> By any chance did your first computer receive any updates from Microsoft >>>> recently? MS updates are well-known to completely bugger custom >>>> settings, including COM port settings. >>>> >>>> Just a thought. >>>> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jstengrevics at comcast.net From kelly at kellybreed.com Sun Jun 7 17:00:46 2020 From: kelly at kellybreed.com (Kelly Breed) Date: Sun, 7 Jun 2020 14:00:46 -0700 Subject: [Elecraft] Zero-beating a KX1 Message-ID: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> I recently obtained a KX1, which I am delighted with it. However, I haven?t found a way to zero-beat a signal other than to go to the menu to listen to the sidetone, memorize it and then return to the VFO. I found a faster way to to that, but it is still just memorizing and going back and forth. Is there a better way to zero-beat? For those of us who don?t have perfect pitch? :-) Kelly AJ6KZ From n4kd at bellsouth.net Sun Jun 7 17:04:30 2020 From: n4kd at bellsouth.net (David Kuechenmeister) Date: Sun, 7 Jun 2020 16:04:30 -0500 Subject: [Elecraft] KX3 For Sale References: Message-ID: I've decided to part with my Kx3, in favor of the Kx1 for portable operations. Before I put this up on QRZ, I thought I'd offer it for sale here. It works very well. It's just that I usually find myself on 30 or 40 meter CW and it's far to capable a rig to just use 10% of the features. Besides, I want a new antenna and this will get me there. Yes, it's an expensive antenna! Elecraft KX3 with all the built in options, - KXFL3 Roofing Filter - KXAT3 Antenna Tuner - KXBC3 NiMH Charger/RT Clock - KX3-2M Transverter And these accessories, - MH3 Hand Mic - KXPD3 Paddle - KX3-PCKT Cable Kit Plus the KE7X book, "The Elecraft KX3-Portable", as well as printed owner's and assembly manuals. Excellent condition. Price is $1400.00, includes ground shipping within CONUS Pictures available on request. Payment by PayPal or USPS money order. Thanks for your interest, vy 73, Dave, N4KD From KX3.2 at ColdRocksHotBrooms.com Sun Jun 7 17:14:47 2020 From: KX3.2 at ColdRocksHotBrooms.com (Lynn W. Taylor, WB6UUT) Date: Sun, 7 Jun 2020 14:14:47 -0700 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: <1737BD81-82B4-4400-9CBB-4856E7CD6D02@gmail.com> References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> <1737BD81-82B4-4400-9CBB-4856E7CD6D02@gmail.com> Message-ID: <3f20c3a7-7bf7-5a52-45ee-bbf117b6d17c@ColdRocksHotBrooms.com> This is why I transitioned from Windows to Linux Mint several months ago. 73 -- Lynn On 6/7/20 1:44 PM, Grant Youngman wrote: > That would be a terrible way to handle updates. If a user has set specific parameters to meet their needs, Windows should simply leave them alone ? unless they no longer exist in the updated version, or their effect/context has changed. If macOS reset everything to defaults every time there was new version, Apple would find my several Macs in front of the nearest Apple Store, ?kitted out? with a sledge hammer .. :-) > > Grant NQ5T > >> On Jun 7, 2020, at 4:21 PM, Bob McGraw K4TAX wrote: >> >> Since Microsoft does not know of every piece of software, on every Windows computer in the world, for simplicity, very often a Windows update will set values to DEFAULT values. Therefore, it is necessary for the user to set certain parameters to their preferred values after an update. I view that this is no fault of Windows, it is just the way they handle updates. Unless one is very familiar with the in-depth operation of Windows, it is wise for anyone to make notes of values, locations and they way one access certain application settings. >> >> 73 >> >> Bob, K4TAX >> >> On 6/7/2020 2:48 PM, barry halterman wrote: >>> This is a classic case of CRE or Cosmic Ray Effect. No reason, just happens. >>> >>> On Sun, Jun 7, 2020, 1:51 PM Ian Kahn, NV4C wrote: >>> >>>> Ray, >>>> >>>> By any chance did your first computer receive any updates from Microsoft >>>> recently? MS updates are well-known to completely bugger custom >>>> settings, including COM port settings. >>>> >>>> Just a thought. >>>> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kx3.2 at coldrockshotbrooms.com > From nv4c.ian at gmail.com Sun Jun 7 17:25:48 2020 From: nv4c.ian at gmail.com (Ian Kahn, NV4C) Date: Sun, 7 Jun 2020 17:25:48 -0400 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> Message-ID: Actually, this is one of the worst ways Microsoft could handle updates. I work in information security for a hospital. I shudder to think what would happen if patching reset our life-saving critical clinical systems to all the default settings every month. Our infrastructure team would spend all their time putting out fires. While the impact for end-users isn't as life-or-death, it is still unreasonable to think that every time our systems get patched/updated, we have to reconfigure them. This is amplified by the fact that Microsoft no longer gives the home user any advance notice of when their system will be patched, nor way to disable automated patching. 73 de, Ian, NV4C On 6/7/20 4:21 PM, Bob McGraw K4TAX wrote: > Since Microsoft does not know of every piece of software, on every > Windows computer in the world, for simplicity, very often a Windows > update will set values to DEFAULT values.? Therefore, it is necessary > for the user to set certain parameters to their preferred values after > an update.??? I view that this is no fault of Windows, it is just the > way they handle updates.??? Unless one is very familiar with the > in-depth operation of Windows,? it is wise for anyone to make notes of > values, locations and they way one access certain application settings. > > 73 > > Bob, K4TAX > > On 6/7/2020 2:48 PM, barry halterman wrote: >> This is a classic case of CRE or Cosmic Ray Effect. No reason, just >> happens. >> >> On Sun, Jun 7, 2020, 1:51 PM Ian Kahn, NV4C wrote: >> >>> Ray, >>> >>> By any chance did your first computer receive any updates from >>> Microsoft >>> recently? MS updates are well-known to completely bugger custom >>> settings, including COM port settings. >>> >>> Just a thought. >>> >>> 73 de, >>> >>> Ian, NV4C >>> >>> >>> On 6/7/20 10:42 AM, Ray Spreadbury via Elecraft wrote: >>>> Hi Buck >>>> >>>> What did I do to fix it? >>>> >>>> Well I left the K3S disconnected for an hour or so while I read the >>> "trouble >>>> shooting" sections in the owners manuals. I decided to change the >>>> power >>>> supply & use a different PC & a different USB cable. >>>> >>>> To my surprise the K3S then started normally & with the new PC I was >>> able to >>>> download a new copy of the Utility program & the latest firmware. This >>>> connected immediately to the K3S. >>>> >>>> So, what was wrong & why did it not work before? >>>> >>>> I have absolutely no idea! >>>> >>>> 73 Ray G3XLG >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to nv4c.ian at gmail.com >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to kthreebo at gmail.com >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nv4c.ian at gmail.com From ab7echo at gmail.com Sun Jun 7 17:35:57 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 7 Jun 2020 14:35:57 -0700 Subject: [Elecraft] Peaks, parks, and prayers: CW & SSB islands in a digital sea In-Reply-To: References: Message-ID: I suggested this about a year ago and got mostly dismissive replies from the group, but I still think that a small, dedicated FT8 rig (and similar modes) would be an attractive offering. Something the size of a KX2 or maybe just a little larger, with a modest display and separate processors/memory for the rig and the digital modes. It's entirely possible to run FT8 from a Raspberry Pi and an inexpensive display, but an all-in-one rig would be so much more practical. The rig portion itself could be MUCH simpler (and therefore less expensive) than a KX2. 73, Dave AB7E On Sun, Jun 7, 2020 at 11:32 AM Wayne Burdick wrote: > Every day, hams worldwide, young and old, summit mountains and hills > carrying the lightest possible load. They earn every calorie burned, and > are rewarded with vistas most people never see. Like all adventurers, they > proudly display nature's merit badges: scrapes, bruises, and stings. > > And then they go back for more. The number of peaks "bagged" by some > operators is staggering, as is their level of fitness and endurance. > > In addition to those formally pursuing peaks (via SOTA, or Summits on the > Air), there are many others who operate casually from hiking trails and > parks. Some operate while they walk (pedestrian mobile, HT-style or > HFpack). Some operate bicycle-mobile. > > I'm writing this out of admiration for, and in solidarity with, all of > those who commune equally with nature and the ionosphere. > > * * * > > There's one thing these hams have in common. > > Upon arriving at their destination -- tired, sweaty, hungry, elated, or > some combination of these -- they hope to make a few QSOs. To experience a > synthesis of the outdoors and the radio art. > > But it isn't always easy. > > While many hams have transitioned to computer-based digital modes such as > FT8, others have not. This includes ultralight travelers, as well as those > who seek the satisfaction of home-building simple gear and putting it on > the air. > > For portable operators in particular, simplicity and pragmatics often > dictate the use of CW and SSB. It may not be desirable or even possible to > lug a laptop in your pack, find a place to set it up, and attach its myriad > cables. You might struggle to see a washed-out LCD screen in direct > sunlight. High winds might capture an open laptop and sweep your gear away. > > Many, instead, choose traditional modes. These allow for small, integrated > gear that can often be hand-held. And there's the bonus of immediacy such > modes offer, without mediation, without constraints on duration or content. > > To put yourself in their shoes, imagine that you just trekked several > miles, much of it uphill. To accommodate the need for food, water, > clothing, and safety gear, you've brought a minimum amount of radio > equipment. It might be a 3-ounce CW QRP radio; an HF-VHF-UHF portable, an > all-band/all-mode HF HT (like a KX2), or your latest home-brew transceiver. > > When you arrive at your peak, you survey the spot for a suitable operating > position. It might be a large, flat rock; a patch of ground not infested > with ants and spiders; or a shady spot with a downslope in a favored > direction. You might climb a tree. Shelter beneath a ridge. Or dangle your > legs and antenna from a cliff. > > Speaking of which, deployment of antennas presents another challenge. You > could spin-cast or toss a wire, hoping for a good landing, without snags. > You might wedge the feet of a tripod into rocks, then attach a small > magnetic loop. Or you might use a simple telescoping whip. > > All that effort. Now it's time to turn on the radio. > > Virtually every time I've gone on such an outing, I've made contacts. At > times I've been lucky. Maybe it's operating experience: knowing who to > call. > > But sometimes there's no one around on CW or SSB. Is it propagation? Or is > everyone swimming in the digital sea, not paying attention to you, on your > remote island? > > You can spot yourself on RBN (reverse beacon network), or prearrange > skeds. But what many of us hope for is that burst of contacts. Feeling like > a rare DX station. Feeling that slap-on-the-back-at-a-distance that says: > > "We hear you." > > * * * > > You can, of course, partake of this experience yourself. > > Whether you do or not, though: Please consider listening for those who do. > Formal activations are announced in advance. See for example: > > https://www.sota.org.uk/ > > The band segments used are very small, or even a single frequency, making > it easy to monitor them while you engage in other activity around the shack > or on the air. You can use SOTA spotting websites, or just keep a receiver > on one of the watering holes. (The Elecraft K3/K3S/KX2/KX3 make this easy, > with built-in scanning. You can set the rig up for either muted or live > audio scans, the latter making it easier to hear weak signals when they pop > up.) > > One final thought. In this pandemic era, some of us have had more time to > get on the air, and some of us have had more chance to get outside. > > Let's do both. At the same time. > > 73, > Wayne > N6KR > > > From 99sunset at gmail.com Sun Jun 7 17:36:22 2020 From: 99sunset at gmail.com (Steve Hall) Date: Sun, 7 Jun 2020 17:36:22 -0400 Subject: [Elecraft] 40 meter net - 6/7/2020 Message-ID: Nice turn out today. Thanks to all those checking in and helping to relay. Note: We have a new weekly Sunday, (Monday GMT) 80 meter SSB Elecraft net beginning tonight at 0100z, 3940 kHz. Net control: KB9AVO. WM6P GA Steve K3s Net Control KB9AVO IN Paul K3s N0MPM IA Mike K3s K8NU OH Carl K3s K6VWE MI Stan K3 K5APL AR Wes K2 WB9JNZ IL Eric K3 NC0JW CO Jim KX3 KO5V NM Jim K2 W4DML TN Doug K3 AE6JV NH Bill KX3 KB8CTC WV Joe IC718 KC8HMJ MI Rich K3 From donwilh at embarqmail.com Sun Jun 7 17:51:06 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 7 Jun 2020 17:51:06 -0400 Subject: [Elecraft] Zero-beating a KX1 In-Reply-To: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> References: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> Message-ID: <2470ad3d-e0cf-a991-d657-d05046b05165@embarqmail.com> Kelly, If you do not have perfect pitch, then what you are doing is one way. Another way would be to build a tone generator for your preferred sidetone pitch and use that. 73, Don W3FPR On 6/7/2020 5:00 PM, Kelly Breed wrote: > I recently obtained a KX1, which I am delighted with it. However, I haven?t found a way to zero-beat a signal other than to go to the menu to listen to the sidetone, memorize it and then return to the VFO. I found a faster way to to that, but it is still just memorizing and going back and forth. Is there a better way to zero-beat? For those of us who don?t have perfect pitch? :-) From ja-pierce at verizon.net Sun Jun 7 17:55:43 2020 From: ja-pierce at verizon.net (John Pierce) Date: Sun, 7 Jun 2020 17:55:43 -0400 Subject: [Elecraft] Mike Cable for KX3 References: <01b201d63d16$64b867f0$2e2937d0$.ref@verizon.net> Message-ID: <01b201d63d16$64b867f0$2e2937d0$@verizon.net> Does anyone make an adapter cable that would connect a condenser microphone with a USB connector to a KX3 mike plug? John, AD2F From clind8 at hotmail.com Sun Jun 7 17:56:18 2020 From: clind8 at hotmail.com (Charles) Date: Sun, 7 Jun 2020 21:56:18 +0000 Subject: [Elecraft] K3 loses transmit power Message-ID: I was using the K3 at low power on PSK, and suddenly had no transmit power. Zip. Receive worked fine. All modes/bands/attempted power levels gave no power out. The rig was not in test mode, Config showed Tx inh=off, and KXV3=nor. Unfortunately the K3 is remote--about 250 miles, so an in person look will take a drive. Power output is monitored by an Alpha 9500 at the remote site. The lack of power was confirmed by a second user with his K3/0 mini/Remote Rig set. I saw one posting where a diode on the Rf board had blown: this would be nice! Does anyone have any further ideas?? Thanks, Chuck, N8CL From k6dgw at foothill.net Sun Jun 7 17:58:47 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sun, 7 Jun 2020 14:58:47 -0700 Subject: [Elecraft] Zero-beating a KX1 In-Reply-To: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> References: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> Message-ID: <044df5eb-36b7-359b-7cfe-6740e69585fd@foothill.net> I believe the only way is to match the pitch to the sidetone pitch, Kelly.? At least I never found another way during all the time I had my KX1.? The KX1 is a really nifty little package, no?? I finally sold mine when injuries from adventures in my 20's coupled with the accumulated birthdays began to limit what I could do in the field.? I use my K2, battery, and solar charger now since I never get very far from the truck.? I also found that zero beat was overrated.? "Close enough" seems to be "good enough." 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/7/2020 2:00 PM, Kelly Breed wrote: > I recently obtained a KX1, which I am delighted with it. However, I haven?t found a way to zero-beat a signal other than to go to the menu to listen to the sidetone, memorize it and then return to the VFO. I found a faster way to to that, but it is still just memorizing and going back and forth. Is there a better way to zero-beat? For those of us who don?t have perfect pitch? :-) > > Kelly > AJ6KZ > From dick93117 at gmail.com Sun Jun 7 18:01:42 2020 From: dick93117 at gmail.com (RICHARD Martin) Date: Sun, 7 Jun 2020 15:01:42 -0700 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: You can purchase light weight telescoping fiberglass poles (about 25') with a kite that looks like a bird of prey. The kite bobs, swirls and dives. Quite an entertaining display. They work quite well keeping the birds and squirrels away from our fruit trees. They are also popular along Sunset Drive in Pacific Grove to deal with the seagulls. 73s Dick KN6AA On Sun, Jun 7, 2020, 12:09 Michael K Bottles via Elecraft < elecraft at mailman.qth.net> wrote: > Yup, that is a flashy sparkly thing like the ribbon I suggested. Birds > don?t seem to like that. > > Sent from my iPad > > > On Jun 7, 2020, at 11:54, Paul Evans W4/VP9KF wrote: > > > > ?This _always_ works, as proven in a marina on my boat (and those that > > adopted it!): > > > > Take old CD. Drill a small hole near the edge. Dangle from object or > > anything nearby with thin string. > > > > Works when every other possible bird scarer had failed. No birds. No > poop. > > > > 73, Paul. > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to k7im at icloud.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dick93117 at gmail.com From w6png at yahoo.com Sun Jun 7 18:09:12 2020 From: w6png at yahoo.com (Paul Gacek) Date: Sun, 7 Jun 2020 15:09:12 -0700 Subject: [Elecraft] Peaks, parks, and prayers: CW & SSB islands in a digital sea In-Reply-To: References: Message-ID: Wayne Thanks for promoting wilderness radio including SOTA and I hope you don?t mind but I copied your entire message into a post on the global SOTA Reflector (watering hole). https://reflector.sota.org.uk/t/wayne-burdick-elecraft-promoting-sota-cw-and-ssb/22983 You captured the essence and feeling of mountain top radio. I love it and never cease to get a kick out of what you describe around the moment of the first contact (which includes a mountain of anticipation as to whether there will be a first contact). Of my almost 250 mountain top activations and 40 or 50 NPOTA activations, I had either my KX3 or KX2 and neither have ever let me down. My antennas have failed, my coax has failed and my ability to spot (I?m SSB so not RBN for me) has in a hollowing gale atop a cold mountain had be retreat and fail but never the radio. Thanks Wayne (and your team) for all you have done for the /P brigade. Paul W6PNG/M0SNA www.nomadic.blog > On Jun 7, 2020, at 2:35 PM, David Gilbert wrote: > > I suggested this about a year ago and got mostly dismissive replies from > the group, but I still think that a small, dedicated FT8 rig (and similar > modes) would be an attractive offering. Something the size of a KX2 or > maybe just a little larger, with a modest display and separate > processors/memory for the rig and the digital modes. It's entirely > possible to run FT8 from a Raspberry Pi and an inexpensive display, but an > all-in-one rig would be so much more practical. The rig portion itself > could be MUCH simpler (and therefore less expensive) than a KX2. > > 73, > Dave AB7E > > > > On Sun, Jun 7, 2020 at 11:32 AM Wayne Burdick wrote: > >> Every day, hams worldwide, young and old, summit mountains and hills >> carrying the lightest possible load. They earn every calorie burned, and >> are rewarded with vistas most people never see. Like all adventurers, they >> proudly display nature's merit badges: scrapes, bruises, and stings. >> >> And then they go back for more. The number of peaks "bagged" by some >> operators is staggering, as is their level of fitness and endurance. >> >> In addition to those formally pursuing peaks (via SOTA, or Summits on the >> Air), there are many others who operate casually from hiking trails and >> parks. Some operate while they walk (pedestrian mobile, HT-style or >> HFpack). Some operate bicycle-mobile. >> >> I'm writing this out of admiration for, and in solidarity with, all of >> those who commune equally with nature and the ionosphere. >> >> * * * >> >> There's one thing these hams have in common. >> >> Upon arriving at their destination -- tired, sweaty, hungry, elated, or >> some combination of these -- they hope to make a few QSOs. To experience a >> synthesis of the outdoors and the radio art. >> >> But it isn't always easy. >> >> While many hams have transitioned to computer-based digital modes such as >> FT8, others have not. This includes ultralight travelers, as well as those >> who seek the satisfaction of home-building simple gear and putting it on >> the air. >> >> For portable operators in particular, simplicity and pragmatics often >> dictate the use of CW and SSB. It may not be desirable or even possible to >> lug a laptop in your pack, find a place to set it up, and attach its myriad >> cables. You might struggle to see a washed-out LCD screen in direct >> sunlight. High winds might capture an open laptop and sweep your gear away. >> >> Many, instead, choose traditional modes. These allow for small, integrated >> gear that can often be hand-held. And there's the bonus of immediacy such >> modes offer, without mediation, without constraints on duration or content. >> >> To put yourself in their shoes, imagine that you just trekked several >> miles, much of it uphill. To accommodate the need for food, water, >> clothing, and safety gear, you've brought a minimum amount of radio >> equipment. It might be a 3-ounce CW QRP radio; an HF-VHF-UHF portable, an >> all-band/all-mode HF HT (like a KX2), or your latest home-brew transceiver. >> >> When you arrive at your peak, you survey the spot for a suitable operating >> position. It might be a large, flat rock; a patch of ground not infested >> with ants and spiders; or a shady spot with a downslope in a favored >> direction. You might climb a tree. Shelter beneath a ridge. Or dangle your >> legs and antenna from a cliff. >> >> Speaking of which, deployment of antennas presents another challenge. You >> could spin-cast or toss a wire, hoping for a good landing, without snags. >> You might wedge the feet of a tripod into rocks, then attach a small >> magnetic loop. Or you might use a simple telescoping whip. >> >> All that effort. Now it's time to turn on the radio. >> >> Virtually every time I've gone on such an outing, I've made contacts. At >> times I've been lucky. Maybe it's operating experience: knowing who to >> call. >> >> But sometimes there's no one around on CW or SSB. Is it propagation? Or is >> everyone swimming in the digital sea, not paying attention to you, on your >> remote island? >> >> You can spot yourself on RBN (reverse beacon network), or prearrange >> skeds. But what many of us hope for is that burst of contacts. Feeling like >> a rare DX station. Feeling that slap-on-the-back-at-a-distance that says: >> >> "We hear you." >> >> * * * >> >> You can, of course, partake of this experience yourself. >> >> Whether you do or not, though: Please consider listening for those who do. >> Formal activations are announced in advance. See for example: >> >> https://www.sota.org.uk/ >> >> The band segments used are very small, or even a single frequency, making >> it easy to monitor them while you engage in other activity around the shack >> or on the air. You can use SOTA spotting websites, or just keep a receiver >> on one of the watering holes. (The Elecraft K3/K3S/KX2/KX3 make this easy, >> with built-in scanning. You can set the rig up for either muted or live >> audio scans, the latter making it easier to hear weak signals when they pop >> up.) >> >> One final thought. In this pandemic era, some of us have had more time to >> get on the air, and some of us have had more chance to get outside. >> >> Let's do both. At the same time. >> >> 73, >> Wayne >> N6KR >> >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From billamader at gmail.com Sun Jun 7 18:25:33 2020 From: billamader at gmail.com (K8TE) Date: Sun, 7 Jun 2020 15:25:33 -0700 (MST) Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> Message-ID: <1591568733640-0.post@n2.nabble.com> Having worked in IT, I can tell you professional IT organizations test patches before deploying them. Regarding Windows 10 Home use, you can delay patches now (a recent update). Finally, for a long time, you have been able to prevent Windows 10 from updating drivers which can lead to COM port number changes: https://www.minitool.com/news/disable-automatic-driver-updates-win-10-009.html. Windows and our computers are just like any tool or even a piece of radio gear. it behooves us to learn how to use those tools and to stay current with updates to them. These tools are more complex than hammers and just as dangerous in un-trained/educated hands. There is plenty of information (much of it correct) available with a quick Google search. Before I spend a weekend or just a day contesting, I always check for Windows Updates. If one is available, I download and install it on ONE computer, test it, and if acceptable, do the same on my other computers. I also check all of my antennas and the rest of my station's systems. They are all tools of the "trade." 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From k2asp at kanafi.org Sun Jun 7 19:19:20 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sun, 7 Jun 2020 16:19:20 -0700 Subject: [Elecraft] OT Bluetooth Serial adapters In-Reply-To: References: <505ECE8D-2F31-4074-B1C6-A72E2AFBEC44@mac.com> Message-ID: <251e890c-bb32-b1b0-6dbd-4109f0901a9d@kanafi.org> On 6/7/2020 12:02 PM, Gwen Patton wrote: > I DO use a 2.4GHz dedicated RF dongle to a wireless keyboard, Maybe you can answer my question, then. A while ago I came into possession of a Dell "wireless" mouse and keyboard set (Logitec ?) for a desktop computer where I elected to use wired accessories. The mouse and the dongle are now being used with a Surface. That leaves the keyboard "stranded". Are "replacement" dongles available so that keyboard can be used with another computer or is the keyboard usable only with that dongle? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From kelly at kellybreed.com Sun Jun 7 19:27:19 2020 From: kelly at kellybreed.com (Kelly Breed) Date: Sun, 7 Jun 2020 16:27:19 -0700 Subject: [Elecraft] Zero-beating a KX1 In-Reply-To: <2470ad3d-e0cf-a991-d657-d05046b05165@embarqmail.com> References: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> <2470ad3d-e0cf-a991-d657-d05046b05165@embarqmail.com> Message-ID: Thank you, Don! The idea was not to have more pieces of equipment, so I?ll continue the way I have been. It was nice to confirm that there is no better built-in way to do it. 73, Kelly AJ6KZ > On Jun 7, 2020, at 2:51 PM, Don Wilhelm wrote: > > Kelly, > > If you do not have perfect pitch, then what you are doing is one way. Another way would be to build a tone generator for your preferred sidetone pitch and use that. > > 73, > Don W3FPR > > On 6/7/2020 5:00 PM, Kelly Breed wrote: >> I recently obtained a KX1, which I am delighted with it. However, I haven?t found a way to zero-beat a signal other than to go to the menu to listen to the sidetone, memorize it and then return to the VFO. I found a faster way to to that, but it is still just memorizing and going back and forth. Is there a better way to zero-beat? For those of us who don?t have perfect pitch? :-) From jfrake73 at gmail.com Sun Jun 7 19:55:07 2020 From: jfrake73 at gmail.com (jack frake) Date: Sun, 7 Jun 2020 19:55:07 -0400 Subject: [Elecraft] Peaks, parks, and prayers: CW & SSB islands in a digital sea In-Reply-To: References: Message-ID: Wayne, Nicely said. Here in Maine we have many opportunities for mountain trekking but you can add operating out of small boats as well. There is no better feeling than cruising all day, entering a snug harbor and kicking back with a warm meal and afterwards, firing up the K-2. Jack, W1IU KX-1, K-2 On Sun, Jun 7, 2020 at 6:09 PM Paul Gacek via Elecraft < elecraft at mailman.qth.net> wrote: > Wayne > > Thanks for promoting wilderness radio including SOTA and I hope you don?t > mind but I copied your entire message into a post on the global SOTA > Reflector (watering hole). > > > https://reflector.sota.org.uk/t/wayne-burdick-elecraft-promoting-sota-cw-and-ssb/22983 > < > https://reflector.sota.org.uk/t/wayne-burdick-elecraft-promoting-sota-cw-and-ssb/22983 > > > > You captured the essence and feeling of mountain top radio. I love it and > never cease to get a kick out of what you describe around the moment of the > first contact (which includes a mountain of anticipation as to whether > there will be a first contact). > > Of my almost 250 mountain top activations and 40 or 50 NPOTA activations, > I had either my KX3 or KX2 and neither have ever let me down. My antennas > have failed, my coax has failed and my ability to spot (I?m SSB so not RBN > for me) has in a hollowing gale atop a cold mountain had be retreat and > fail but never the radio. > > Thanks Wayne (and your team) for all you have done for the /P brigade. > > Paul > W6PNG/M0SNA > www.nomadic.blog > > > > On Jun 7, 2020, at 2:35 PM, David Gilbert wrote: > > > > I suggested this about a year ago and got mostly dismissive replies from > > the group, but I still think that a small, dedicated FT8 rig (and similar > > modes) would be an attractive offering. Something the size of a KX2 or > > maybe just a little larger, with a modest display and separate > > processors/memory for the rig and the digital modes. It's entirely > > possible to run FT8 from a Raspberry Pi and an inexpensive display, but > an > > all-in-one rig would be so much more practical. The rig portion itself > > could be MUCH simpler (and therefore less expensive) than a KX2. > > > > 73, > > Dave AB7E > > > > > > > > On Sun, Jun 7, 2020 at 11:32 AM Wayne Burdick wrote: > > > >> Every day, hams worldwide, young and old, summit mountains and hills > >> carrying the lightest possible load. They earn every calorie burned, and > >> are rewarded with vistas most people never see. Like all adventurers, > they > >> proudly display nature's merit badges: scrapes, bruises, and stings. > >> > >> And then they go back for more. The number of peaks "bagged" by some > >> operators is staggering, as is their level of fitness and endurance. > >> > >> In addition to those formally pursuing peaks (via SOTA, or Summits on > the > >> Air), there are many others who operate casually from hiking trails and > >> parks. Some operate while they walk (pedestrian mobile, HT-style or > >> HFpack). Some operate bicycle-mobile. > >> > >> I'm writing this out of admiration for, and in solidarity with, all of > >> those who commune equally with nature and the ionosphere. > >> > >> * * * > >> > >> There's one thing these hams have in common. > >> > >> Upon arriving at their destination -- tired, sweaty, hungry, elated, or > >> some combination of these -- they hope to make a few QSOs. To > experience a > >> synthesis of the outdoors and the radio art. > >> > >> But it isn't always easy. > >> > >> While many hams have transitioned to computer-based digital modes such > as > >> FT8, others have not. This includes ultralight travelers, as well as > those > >> who seek the satisfaction of home-building simple gear and putting it on > >> the air. > >> > >> For portable operators in particular, simplicity and pragmatics often > >> dictate the use of CW and SSB. It may not be desirable or even possible > to > >> lug a laptop in your pack, find a place to set it up, and attach its > myriad > >> cables. You might struggle to see a washed-out LCD screen in direct > >> sunlight. High winds might capture an open laptop and sweep your gear > away. > >> > >> Many, instead, choose traditional modes. These allow for small, > integrated > >> gear that can often be hand-held. And there's the bonus of immediacy > such > >> modes offer, without mediation, without constraints on duration or > content. > >> > >> To put yourself in their shoes, imagine that you just trekked several > >> miles, much of it uphill. To accommodate the need for food, water, > >> clothing, and safety gear, you've brought a minimum amount of radio > >> equipment. It might be a 3-ounce CW QRP radio; an HF-VHF-UHF portable, > an > >> all-band/all-mode HF HT (like a KX2), or your latest home-brew > transceiver. > >> > >> When you arrive at your peak, you survey the spot for a suitable > operating > >> position. It might be a large, flat rock; a patch of ground not infested > >> with ants and spiders; or a shady spot with a downslope in a favored > >> direction. You might climb a tree. Shelter beneath a ridge. Or dangle > your > >> legs and antenna from a cliff. > >> > >> Speaking of which, deployment of antennas presents another challenge. > You > >> could spin-cast or toss a wire, hoping for a good landing, without > snags. > >> You might wedge the feet of a tripod into rocks, then attach a small > >> magnetic loop. Or you might use a simple telescoping whip. > >> > >> All that effort. Now it's time to turn on the radio. > >> > >> Virtually every time I've gone on such an outing, I've made contacts. At > >> times I've been lucky. Maybe it's operating experience: knowing who to > >> call. > >> > >> But sometimes there's no one around on CW or SSB. Is it propagation? Or > is > >> everyone swimming in the digital sea, not paying attention to you, on > your > >> remote island? > >> > >> You can spot yourself on RBN (reverse beacon network), or prearrange > >> skeds. But what many of us hope for is that burst of contacts. Feeling > like > >> a rare DX station. Feeling that slap-on-the-back-at-a-distance that > says: > >> > >> "We hear you." > >> > >> * * * > >> > >> You can, of course, partake of this experience yourself. > >> > >> Whether you do or not, though: Please consider listening for those who > do. > >> Formal activations are announced in advance. See for example: > >> > >> https://www.sota.org.uk/ > >> > >> The band segments used are very small, or even a single frequency, > making > >> it easy to monitor them while you engage in other activity around the > shack > >> or on the air. You can use SOTA spotting websites, or just keep a > receiver > >> on one of the watering holes. (The Elecraft K3/K3S/KX2/KX3 make this > easy, > >> with built-in scanning. You can set the rig up for either muted or live > >> audio scans, the latter making it easier to hear weak signals when they > pop > >> up.) > >> > >> One final thought. In this pandemic era, some of us have had more time > to > >> get on the air, and some of us have had more chance to get outside. > >> > >> Let's do both. At the same time. > >> > >> 73, > >> Wayne > >> N6KR > >> > >> > >> > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to w6png at yahoo.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jfrake73 at gmail.com From huntinhmb at coastside.net Sun Jun 7 20:18:50 2020 From: huntinhmb at coastside.net (huntinhmb at coastside.net) Date: Sun, 7 Jun 2020 17:18:50 -0700 (PDT) Subject: [Elecraft] Zero-beating a KX1 In-Reply-To: References: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> <2470ad3d-e0cf-a991-d657-d05046b05165@embarqmail.com> Message-ID: <1591575530.04051756@webmail.coastside.net> There once was a nifty CW tuning aid board available for the K1 which I wish I had built but never did. A web search didn't turn it up but this link came up with, I think, the same basic circuit: [ http://www.n5ese.com/zerobeat.htm ]( http://www.n5ese.com/zerobeat.htm ) 72, Brian, K0DTJ -----Original Message----- From: "Kelly Breed" Sent: Sunday, June 7, 2020 16:27 To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Zero-beating a KX1 Thank you, Don! The idea was not to have more pieces of equipment, so I?ll continue the way I have been. It was nice to confirm that there is no better built-in way to do it. 73, Kelly AJ6KZ > On Jun 7, 2020, at 2:51 PM, Don Wilhelm wrote: > > Kelly, > > If you do not have perfect pitch, then what you are doing is one way. Another way would be to build a tone generator for your preferred sidetone pitch and use that. > > 73, > Don W3FPR > > On 6/7/2020 5:00 PM, Kelly Breed wrote: >> I recently obtained a KX1, which I am delighted with it. However, I haven?t found a way to zero-beat a signal other than to go to the menu to listen to the sidetone, memorize it and then return to the VFO. I found a faster way to to that, but it is still just memorizing and going back and forth. Is there a better way to zero-beat? For those of us who don?t have perfect pitch? :-) ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to huntinhmb at coastside.net From a.durbin at msn.com Sun Jun 7 20:33:36 2020 From: a.durbin at msn.com (Andy Durbin) Date: Mon, 8 Jun 2020 00:33:36 +0000 Subject: [Elecraft] Zero-beating a KX1 Message-ID: Ref the linked article - "you slowly tune the received signal until it reaches the magic tone that means "zero-beat". Usually, this is the same tone as your CW sidetone, 500-800 Hz, depending on your rig. You need a good ear for pitch." Has everyone forgotten what to "zero beat" means or is it simply that the term has become so abused that it means something different now. Zero beat used to mean to shift the frequency of one signal relative to the frequency of another signal until the audible beat frequency reduced to zero. In those olden days, using an AM receiver to receive CW, the technique I remember was to set the BFO (Beat frequency Oscillator) to zero offset, tune the signal for zero beat, then adjust the BFO offset for desired pitch. How can tuning a single frequency to desired pitch be zero beating. There is no beat frequency to zero. Andy, k3wyc From bbaines at mac.com Sun Jun 7 21:32:43 2020 From: bbaines at mac.com (Barry Baines) Date: Sun, 7 Jun 2020 20:32:43 -0500 Subject: [Elecraft] Using a SDRPlay RSPduo as a K3 Panadapter for Remote Operations Message-ID: My Elecraft K3-KPA500-KAT500-P3 is remotely operated through the K3/IO-mini and Remote Rig from my station in Southeast Georgia, The system works well but I don?t have remote access to the P3. It finally dawned on me recently that I could potentially use a SDRPlay RSPduo SDR receiver that I currently own as a panadapter and then use VNC Viewer to connect to the shack PC to view the panadapter. As the P3 has an IF output, I plan to connect that output to one of the RSPduo?s SMA inputs. The PC that is at the shack is already setup for remote access, so I could simply install SDRuno and run the software to see the Panadapter display. That leaves the issue of how to obtain K3 frequency and mode information (presumably using OmniRig to feed data to SDRuno) for managing the SDRduo?s display of the K3?s frequency as the center frequency. I presume that the SDR software would be set to the IF frequency from the K3 (8.215 MHz). Currently, the K3 serial port is connected to the Remote Rig for remote control. However, it is possible to run a serial cable from a PC ComPort to the back of the P3. So if that connection is made, will it be connected serially to the K3 as well as to the P3? If not: 1. Is a serial port y-adapter between the K3 serial connection and the Remote Rig connection to add a PC serial port connection acceptable under the presumption that the PC won?t be sending commands to the K3 but only receiving data from the K3? 2. Do I use a PC program to provide data from the K3 to both the Remote Rig Com Port and to SDRuno? In this case, presumably OmnRig would be accessing a virtual serial port (VSPE) rather than a physical serial port. I understand that LP-Bridge is not compatible with SDRuno so is there a similar ?repeater? software for distributing serial information to various destinations? 3. Am I better off to use something like Win4KSuite as the interface between the K3 and RSPduo? This apparently eliminates the need for OmniRig and provides integration with SDRduo. It also appears that this software supports the K3/IO-mini, so does that mean the ?Mini? is connected to a PC ComPort and the interconnection is made through Win4KSuite? One issue that I see with this approach is that if there is an issue with the PC, I will lose my K3-K3/IO connection as well. 4. Are there other software packages that I should consider? If anyone is using a K3/IO remote connection as well as using a PC in the shack as a Panadapter display through a SDR receiver, I?d appreciate your thoughts on this. I?m planning to head back to SE Georgia at the end of this week (Thursday/Friday) and would like to set this up while I?m there before returning to Texas later in the month. Thanks, Barry Baines, WD4ASW Keller, TX From n4zr at comcast.net Sun Jun 7 21:35:25 2020 From: n4zr at comcast.net (N4ZR) Date: Sun, 7 Jun 2020 21:35:25 -0400 Subject: [Elecraft] CW rise time setting Message-ID: Will the K4 have options for setting CW rise and fall times, not just TXDELAY like the K3? -- 73, Pete N4ZR Check out the Reverse Beacon Network at , now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX cluster. From k6dgw at foothill.net Sun Jun 7 21:41:01 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sun, 7 Jun 2020 18:41:01 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: References: Message-ID: <596037b8-24dc-ea1c-eee1-c822081bb3d5@foothill.net> I really hope the answer is "No."? Rise/Fall times and waveshape of the RF envelope should be tailored by the mfr for the best signal, not adjustable. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/7/2020 6:35 PM, N4ZR wrote: > Will the K4 have options for setting CW rise and fall times, not just > TXDELAY like the K3? > From ardrhi at gmail.com Sun Jun 7 21:44:57 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Sun, 7 Jun 2020 21:44:57 -0400 Subject: [Elecraft] OT Bluetooth Serial adapters In-Reply-To: <251e890c-bb32-b1b0-6dbd-4109f0901a9d@kanafi.org> References: <505ECE8D-2F31-4074-B1C6-A72E2AFBEC44@mac.com> <251e890c-bb32-b1b0-6dbd-4109f0901a9d@kanafi.org> Message-ID: If it's one of the Logitech "Unifying" dongles, you can get them on Amazon from various sources: https://www.amazon.com/logitech-dongle-replacement/s?k=logitech+dongle+replacement One dongle can support up to 6 Logitech devices on a single computer using these. Microsoft dongles, however, are keyed specifically to the keyboard and/or mouse they were sold with, and you pretty much have to buy a new set if the dongle goes missing. They can't recode a new dongle. -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Sun, Jun 7, 2020 at 7:19 PM Phil Kane wrote: > On 6/7/2020 12:02 PM, Gwen Patton wrote: > > > I DO use a 2.4GHz dedicated RF dongle to a wireless keyboard, > > Maybe you can answer my question, then. > > A while ago I came into possession of a Dell "wireless" mouse and > keyboard set (Logitec ?) for a desktop computer where I elected to use > wired accessories. The mouse and the dongle are now being used with a > Surface. That leaves the keyboard "stranded". Are "replacement" > dongles available so that keyboard can be used with another computer or > is the keyboard usable only with that dongle? > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > From n6kr at elecraft.com Sun Jun 7 21:45:08 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 7 Jun 2020 18:45:08 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: References: Message-ID: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> > N4ZR wrote: > > Will the K4 have options for setting CW rise and fall times...? Hi Pete, Probably not. We've always been very careful to ensure our rigs have an exceptional clean, click-free CW signal. (Third-party testing bears this out.) Minimizing the bandwidth requires a very specific rise/fall time and a hand-crafted sigmoidal shaping function in DSP. Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't reveal what's in her chocolate-chip cookies, and only selected firmware monks--sworn to secrecy--are privy to Elecraft's keying envelope coefficients :) 73, Wayne N6KR From n6kr at elecraft.com Sun Jun 7 21:50:04 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 7 Jun 2020 18:50:04 -0700 Subject: [Elecraft] Peaks, parks, and prayers: CW & SSB islands in a digital sea In-Reply-To: References: Message-ID: My pleasure, Paul. Feel free to repost elsewhere. And keep on truckin' :) 73, Wayne N6KR > On Jun 7, 2020, at 3:09 PM, Paul Gacek wrote: > > Wayne > > Thanks for promoting wilderness radio including SOTA and I hope you don?t mind but I copied your entire message into a post on the global SOTA Reflector (watering hole). > > https://reflector.sota.org.uk/t/wayne-burdick-elecraft-promoting-sota-cw-and-ssb/22983 > > You captured the essence and feeling of mountain top radio. I love it and never cease to get a kick out of what you describe around the moment of the first contact (which includes a mountain of anticipation as to whether there will be a first contact). > > Of my almost 250 mountain top activations and 40 or 50 NPOTA activations, I had either my KX3 or KX2 and neither have ever let me down. My antennas have failed, my coax has failed and my ability to spot (I?m SSB so not RBN for me) has in a hollowing gale atop a cold mountain had be retreat and fail but never the radio. > > Thanks Wayne (and your team) for all you have done for the /P brigade. > > Paul > W6PNG/M0SNA > www.nomadic.blog > > >> On Jun 7, 2020, at 2:35 PM, David Gilbert wrote: >> >> I suggested this about a year ago and got mostly dismissive replies from >> the group, but I still think that a small, dedicated FT8 rig (and similar >> modes) would be an attractive offering. Something the size of a KX2 or >> maybe just a little larger, with a modest display and separate >> processors/memory for the rig and the digital modes. It's entirely >> possible to run FT8 from a Raspberry Pi and an inexpensive display, but an >> all-in-one rig would be so much more practical. The rig portion itself >> could be MUCH simpler (and therefore less expensive) than a KX2. >> >> 73, >> Dave AB7E >> >> >> >> On Sun, Jun 7, 2020 at 11:32 AM Wayne Burdick wrote: >> >>> Every day, hams worldwide, young and old, summit mountains and hills >>> carrying the lightest possible load. They earn every calorie burned, and >>> are rewarded with vistas most people never see. Like all adventurers, they >>> proudly display nature's merit badges: scrapes, bruises, and stings. >>> >>> And then they go back for more. The number of peaks "bagged" by some >>> operators is staggering, as is their level of fitness and endurance. >>> >>> In addition to those formally pursuing peaks (via SOTA, or Summits on the >>> Air), there are many others who operate casually from hiking trails and >>> parks. Some operate while they walk (pedestrian mobile, HT-style or >>> HFpack). Some operate bicycle-mobile. >>> >>> I'm writing this out of admiration for, and in solidarity with, all of >>> those who commune equally with nature and the ionosphere. >>> >>> * * * >>> >>> There's one thing these hams have in common. >>> >>> Upon arriving at their destination -- tired, sweaty, hungry, elated, or >>> some combination of these -- they hope to make a few QSOs. To experience a >>> synthesis of the outdoors and the radio art. >>> >>> But it isn't always easy. >>> >>> While many hams have transitioned to computer-based digital modes such as >>> FT8, others have not. This includes ultralight travelers, as well as those >>> who seek the satisfaction of home-building simple gear and putting it on >>> the air. >>> >>> For portable operators in particular, simplicity and pragmatics often >>> dictate the use of CW and SSB. It may not be desirable or even possible to >>> lug a laptop in your pack, find a place to set it up, and attach its myriad >>> cables. You might struggle to see a washed-out LCD screen in direct >>> sunlight. High winds might capture an open laptop and sweep your gear away. >>> >>> Many, instead, choose traditional modes. These allow for small, integrated >>> gear that can often be hand-held. And there's the bonus of immediacy such >>> modes offer, without mediation, without constraints on duration or content. >>> >>> To put yourself in their shoes, imagine that you just trekked several >>> miles, much of it uphill. To accommodate the need for food, water, >>> clothing, and safety gear, you've brought a minimum amount of radio >>> equipment. It might be a 3-ounce CW QRP radio; an HF-VHF-UHF portable, an >>> all-band/all-mode HF HT (like a KX2), or your latest home-brew transceiver. >>> >>> When you arrive at your peak, you survey the spot for a suitable operating >>> position. It might be a large, flat rock; a patch of ground not infested >>> with ants and spiders; or a shady spot with a downslope in a favored >>> direction. You might climb a tree. Shelter beneath a ridge. Or dangle your >>> legs and antenna from a cliff. >>> >>> Speaking of which, deployment of antennas presents another challenge. You >>> could spin-cast or toss a wire, hoping for a good landing, without snags. >>> You might wedge the feet of a tripod into rocks, then attach a small >>> magnetic loop. Or you might use a simple telescoping whip. >>> >>> All that effort. Now it's time to turn on the radio. >>> >>> Virtually every time I've gone on such an outing, I've made contacts. At >>> times I've been lucky. Maybe it's operating experience: knowing who to >>> call. >>> >>> But sometimes there's no one around on CW or SSB. Is it propagation? Or is >>> everyone swimming in the digital sea, not paying attention to you, on your >>> remote island? >>> >>> You can spot yourself on RBN (reverse beacon network), or prearrange >>> skeds. But what many of us hope for is that burst of contacts. Feeling like >>> a rare DX station. Feeling that slap-on-the-back-at-a-distance that says: >>> >>> "We hear you." >>> >>> * * * >>> >>> You can, of course, partake of this experience yourself. >>> >>> Whether you do or not, though: Please consider listening for those who do. >>> Formal activations are announced in advance. See for example: >>> >>> https://www.sota.org.uk/ >>> >>> The band segments used are very small, or even a single frequency, making >>> it easy to monitor them while you engage in other activity around the shack >>> or on the air. You can use SOTA spotting websites, or just keep a receiver >>> on one of the watering holes. (The Elecraft K3/K3S/KX2/KX3 make this easy, >>> with built-in scanning. You can set the rig up for either muted or live >>> audio scans, the latter making it easier to hear weak signals when they pop >>> up.) >>> >>> One final thought. In this pandemic era, some of us have had more time to >>> get on the air, and some of us have had more chance to get outside. >>> >>> Let's do both. At the same time. >>> >>> 73, >>> Wayne >>> N6KR >>> >>> From pvandyke1953 at gmail.com Sun Jun 7 22:03:24 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Sun, 7 Jun 2020 22:03:24 -0400 Subject: [Elecraft] 1st 80 Meter Elecraft Net Message-ID: KB9AVO: Elecraft 3.940 Net Date: 6/7/2020 Frequency: 3.94000 Total Number Stations = 10 K8NU Carl OH WB9JNZ Eric IL WM6P Steve GA N9YH CHRIS IL AB4IQ ED KY W1GO Joseph NY NG9NG SAM WI KB8RXG LEWIS MI WY3T TIM FL KC8HMJ RICH MI I want to thank all those that came up on 80m to help kick off the 1st Elecraft net on that frequency. See you next week Paul - KB9AVO - Net Control ---------------------------- Post to your radio shack 20 Meter Elecraft Net Sunday 18:00z 14.3035 +/- 40 Meter Elecraft Net Sunday 18:45z 7.280 80 Meter Elecraft Net Sunday Night 01:00z 3.940 +/- From rmcgraw at blomand.net Sun Jun 7 22:21:16 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 7 Jun 2020 21:21:16 -0500 Subject: [Elecraft] CW rise time setting In-Reply-To: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> References: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> Message-ID: <539197A5-522D-433D-910B-4E9B6D586D99@blomand.net> Thanks Wayne for the excellent and exceptional clean keying. 73 Bob, K4TAX Sent from my iPhone > On Jun 7, 2020, at 8:49 PM, Wayne Burdick wrote: > > ? >> >> N4ZR wrote: >> >> Will the K4 have options for setting CW rise and fall times...? > > Hi Pete, > > Probably not. We've always been very careful to ensure our rigs have an exceptional clean, click-free CW signal. (Third-party testing bears this out.) Minimizing the bandwidth requires a very specific rise/fall time and a hand-crafted sigmoidal shaping function in DSP. > > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't reveal what's in her chocolate-chip cookies, and only selected firmware monks--sworn to secrecy--are privy to Elecraft's keying envelope coefficients :) > > 73, > Wayne > N6KR > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net > From ab7echo at gmail.com Sun Jun 7 22:21:52 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 7 Jun 2020 19:21:52 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> References: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> Message-ID: Thank you. I'd be really disappointed if the keying waveform for the K4 was made adjustable. I consider the fact that it is not adjustable on my K3 to be one of its best features. On Sun, Jun 7, 2020 at 6:49 PM Wayne Burdick wrote: > > N4ZR wrote: > > > > Will the K4 have options for setting CW rise and fall times...? > > Hi Pete, > > Probably not. We've always been very careful to ensure our rigs have an > exceptional clean, click-free CW signal. (Third-party testing bears this > out.) Minimizing the bandwidth requires a very specific rise/fall time and > a hand-crafted sigmoidal shaping function in DSP. > > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't > reveal what's in her chocolate-chip cookies, and only selected firmware > monks--sworn to secrecy--are privy to Elecraft's keying envelope > coefficients :) > > 73, > Wayne > N6KR > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ab7echo at gmail.com > From pvandyke1953 at gmail.com Sun Jun 7 22:26:37 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Sun, 7 Jun 2020 22:26:37 -0400 Subject: [Elecraft] 1st 80 Meter Elecraft Net Message-ID: KB9AVO: Elecraft 3.940 Net Date: 6/7/2020 Frequency: 3.94000 Total Number Stations = 10 K8NU Carl OH WB9JNZ Eric IL WM6P Steve GA N9YH CHRIS IL AB4IQ ED KY W1GO Joseph NY NG9NG SAM WI KB8RXG LEWIS MI WY3T TIM FL KC8HMJ RICH MI I want to thank all those that came up on 80m to help kick off the 1st Elecraft net on that frequency. See you next week Paul - KB9AVO ---------------------------- Post to your radio shack 20 Meter Elecraft Net Sunday 18:00z 14.3035 +/- 40 Meter Elecraft Net Sunday 18:45z 7.280 80 Meter Elecraft Net Sunday Night 01:00z 3.940 +/- From ab7echo at gmail.com Sun Jun 7 22:31:47 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 7 Jun 2020 19:31:47 -0700 Subject: [Elecraft] Peaks, parks, and prayers: CW & SSB islands in a digital sea In-Reply-To: References: Message-ID: Thanks to Ray and Gwen for the tip, and that indeed looks like a really nice low cost way to go. But I already have a KX2 and I would still need to bring along a notebook or small laptop computer. I could certainly homebrew a combined unit consisting of the MDS Phasor, a Raspberry Pi, and a 12 volt display ... total cost would probably be less than $200. I just think that a self-contained unit would be inherently smaller, and probably a good seller if Elecraft ever was inclined to offer one, especially if it provided multiple bands. 73, Dave AB7E On Sun, Jun 7, 2020 at 6:50 PM Wayne Burdick wrote: > My pleasure, Paul. Feel free to repost elsewhere. > > And keep on truckin' :) > > 73, > Wayne > N6KR > > > > On Jun 7, 2020, at 3:09 PM, Paul Gacek wrote: > > > > Wayne > > > > Thanks for promoting wilderness radio including SOTA and I hope you > don?t mind but I copied your entire message into a post on the global SOTA > Reflector (watering hole). > > > > > https://reflector.sota.org.uk/t/wayne-burdick-elecraft-promoting-sota-cw-and-ssb/22983 > > > > You captured the essence and feeling of mountain top radio. I love it > and never cease to get a kick out of what you describe around the moment of > the first contact (which includes a mountain of anticipation as to whether > there will be a first contact). > > > > Of my almost 250 mountain top activations and 40 or 50 NPOTA > activations, I had either my KX3 or KX2 and neither have ever let me down. > My antennas have failed, my coax has failed and my ability to spot (I?m SSB > so not RBN for me) has in a hollowing gale atop a cold mountain had be > retreat and fail but never the radio. > > > > Thanks Wayne (and your team) for all you have done for the /P brigade. > > > > Paul > > W6PNG/M0SNA > > www.nomadic.blog > > > > > >> On Jun 7, 2020, at 2:35 PM, David Gilbert wrote: > >> > >> I suggested this about a year ago and got mostly dismissive replies from > >> the group, but I still think that a small, dedicated FT8 rig (and > similar > >> modes) would be an attractive offering. Something the size of a KX2 or > >> maybe just a little larger, with a modest display and separate > >> processors/memory for the rig and the digital modes. It's entirely > >> possible to run FT8 from a Raspberry Pi and an inexpensive display, but > an > >> all-in-one rig would be so much more practical. The rig portion itself > >> could be MUCH simpler (and therefore less expensive) than a KX2. > >> > >> 73, > >> Dave AB7E > >> > >> > >> > >> On Sun, Jun 7, 2020 at 11:32 AM Wayne Burdick > wrote: > >> > >>> Every day, hams worldwide, young and old, summit mountains and hills > >>> carrying the lightest possible load. They earn every calorie burned, > and > >>> are rewarded with vistas most people never see. Like all adventurers, > they > >>> proudly display nature's merit badges: scrapes, bruises, and stings. > >>> > >>> And then they go back for more. The number of peaks "bagged" by some > >>> operators is staggering, as is their level of fitness and endurance. > >>> > >>> In addition to those formally pursuing peaks (via SOTA, or Summits on > the > >>> Air), there are many others who operate casually from hiking trails and > >>> parks. Some operate while they walk (pedestrian mobile, HT-style or > >>> HFpack). Some operate bicycle-mobile. > >>> > >>> I'm writing this out of admiration for, and in solidarity with, all of > >>> those who commune equally with nature and the ionosphere. > >>> > >>> * * * > >>> > >>> There's one thing these hams have in common. > >>> > >>> Upon arriving at their destination -- tired, sweaty, hungry, elated, or > >>> some combination of these -- they hope to make a few QSOs. To > experience a > >>> synthesis of the outdoors and the radio art. > >>> > >>> But it isn't always easy. > >>> > >>> While many hams have transitioned to computer-based digital modes such > as > >>> FT8, others have not. This includes ultralight travelers, as well as > those > >>> who seek the satisfaction of home-building simple gear and putting it > on > >>> the air. > >>> > >>> For portable operators in particular, simplicity and pragmatics often > >>> dictate the use of CW and SSB. It may not be desirable or even > possible to > >>> lug a laptop in your pack, find a place to set it up, and attach its > myriad > >>> cables. You might struggle to see a washed-out LCD screen in direct > >>> sunlight. High winds might capture an open laptop and sweep your gear > away. > >>> > >>> Many, instead, choose traditional modes. These allow for small, > integrated > >>> gear that can often be hand-held. And there's the bonus of immediacy > such > >>> modes offer, without mediation, without constraints on duration or > content. > >>> > >>> To put yourself in their shoes, imagine that you just trekked several > >>> miles, much of it uphill. To accommodate the need for food, water, > >>> clothing, and safety gear, you've brought a minimum amount of radio > >>> equipment. It might be a 3-ounce CW QRP radio; an HF-VHF-UHF portable, > an > >>> all-band/all-mode HF HT (like a KX2), or your latest home-brew > transceiver. > >>> > >>> When you arrive at your peak, you survey the spot for a suitable > operating > >>> position. It might be a large, flat rock; a patch of ground not > infested > >>> with ants and spiders; or a shady spot with a downslope in a favored > >>> direction. You might climb a tree. Shelter beneath a ridge. Or dangle > your > >>> legs and antenna from a cliff. > >>> > >>> Speaking of which, deployment of antennas presents another challenge. > You > >>> could spin-cast or toss a wire, hoping for a good landing, without > snags. > >>> You might wedge the feet of a tripod into rocks, then attach a small > >>> magnetic loop. Or you might use a simple telescoping whip. > >>> > >>> All that effort. Now it's time to turn on the radio. > >>> > >>> Virtually every time I've gone on such an outing, I've made contacts. > At > >>> times I've been lucky. Maybe it's operating experience: knowing who to > >>> call. > >>> > >>> But sometimes there's no one around on CW or SSB. Is it propagation? > Or is > >>> everyone swimming in the digital sea, not paying attention to you, on > your > >>> remote island? > >>> > >>> You can spot yourself on RBN (reverse beacon network), or prearrange > >>> skeds. But what many of us hope for is that burst of contacts. Feeling > like > >>> a rare DX station. Feeling that slap-on-the-back-at-a-distance that > says: > >>> > >>> "We hear you." > >>> > >>> * * * > >>> > >>> You can, of course, partake of this experience yourself. > >>> > >>> Whether you do or not, though: Please consider listening for those who > do. > >>> Formal activations are announced in advance. See for example: > >>> > >>> https://www.sota.org.uk/ > >>> > >>> The band segments used are very small, or even a single frequency, > making > >>> it easy to monitor them while you engage in other activity around the > shack > >>> or on the air. You can use SOTA spotting websites, or just keep a > receiver > >>> on one of the watering holes. (The Elecraft K3/K3S/KX2/KX3 make this > easy, > >>> with built-in scanning. You can set the rig up for either muted or live > >>> audio scans, the latter making it easier to hear weak signals when > they pop > >>> up.) > >>> > >>> One final thought. In this pandemic era, some of us have had more time > to > >>> get on the air, and some of us have had more chance to get outside. > >>> > >>> Let's do both. At the same time. > >>> > >>> 73, > >>> Wayne > >>> N6KR > >>> > >>> > > > From lmarion at mt.net Sun Jun 7 23:04:19 2020 From: lmarion at mt.net (lmarion) Date: Sun, 7 Jun 2020 21:04:19 -0600 Subject: [Elecraft] Zero-beating a KX1 In-Reply-To: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> References: <3672E4B3-0865-47E8-812E-F214F9F8B645@kellybreed.com> Message-ID: <47CF4344C20B44509A3DD4B8F077062E@LeroyPC> I installed a N0SS (much missed silent key) zero beat indicator, works excellent. I put one in my K1 and K2 also. leroy AB7CE -----Original Message----- From: Kelly Breed Sent: Sunday, June 07, 2020 3:00 PM To: elecraft at mailman.qth.net Subject: [Elecraft] Zero-beating a KX1 I recently obtained a KX1, which I am delighted with it. However, I haven?t found a way to zero-beat a signal other than to go to the menu to listen to the sidetone, memorize it and then return to the VFO. I found a faster way to to that, but it is still just memorizing and going back and forth. Is there a better way to zero-beat? For those of us who don?t have perfect pitch? :-) Kelly AJ6KZ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lmarion at mt.net From ai4ns.mike at gmail.com Sun Jun 7 23:10:41 2020 From: ai4ns.mike at gmail.com (Mike Short) Date: Sun, 7 Jun 2020 22:10:41 -0500 Subject: [Elecraft] K3S dead after attempted firmware update - Fixed In-Reply-To: <1591568733640-0.post@n2.nabble.com> References: <00f101d63cd9$e5770280$b0650780$@btinternet.com> <9338c0ae-5eec-92f9-e3e2-8e6c7992409e@gmail.com> <1591568733640-0.post@n2.nabble.com> Message-ID: I am an IT guy, so I hear you. We patch, then lock down again On Sun, Jun 7, 2020 at 17:27 K8TE wrote: > Having worked in IT, I can tell you professional IT organizations test > patches before deploying them. > > Regarding Windows 10 Home use, you can delay patches now (a recent update). > > Finally, for a long time, you have been able to prevent Windows 10 from > updating drivers which can lead to COM port number changes: > > https://www.minitool.com/news/disable-automatic-driver-updates-win-10-009.html > . > > Windows and our computers are just like any tool or even a piece of radio > gear. it behooves us to learn how to use those tools and to stay current > with updates to them. These tools are more complex than hammers and just > as > dangerous in un-trained/educated hands. > > There is plenty of information (much of it correct) available with a quick > Google search. Before I spend a weekend or just a day contesting, I always > check for Windows Updates. If one is available, I download and install it > on ONE computer, test it, and if acceptable, do the same on my other > computers. I also check all of my antennas and the rest of my station's > systems. They are all tools of the "trade." > > 73, Bill, K8TE > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ai4ns.mike at gmail.com > From kevinr at coho.net Sun Jun 7 23:26:57 2020 From: kevinr at coho.net (kevinr) Date: Sun, 7 Jun 2020 20:26:57 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: <678fefee-8003-7a2d-c7cd-febdd7e51fd4@coho.net> Good Evening, The chilly, wet weather caused my hands to stiffen up.? I kept wishing for zerk fittings on each knuckle.? Spring changes to summer very slowly in Oregon; sometimes we have to get out and push.? The hot temperatures reports from the Midwest helped a little. Conditions were much like last week and the week before.? We do have a sunspot which is moving into a good position.? It is also unstable.? A CME would be nice.? More sunspots for Field Day would be even better. ? On 14050.5 kHz at 2200z: W0CZ - Ken - ND NO8V - John - MI K6XK - Roy - IA K0DTJ - Brian - CA AB9V - Mike - IN K4JPN - Steve - GA N5URL - Bob - NM ? On 7047.5 kHz at 0000z: K0DTJ - Brian - CA WM5F - Dwight - ID K6PJV - Dale - CA Until next week 73, ?? Kevin.? KD5ONS _ From ardrhi at gmail.com Sun Jun 7 23:28:06 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Sun, 7 Jun 2020 23:28:06 -0400 Subject: [Elecraft] Peaks, parks, and prayers: CW & SSB islands in a digital sea In-Reply-To: References: Message-ID: I use an older Chromebook, Dave. I removed Chrome OS and replaced it with GalliumOS, a Linux distro for Chromebooks. You can get an older model Chromebook for really cheap these days, and that gives you a display, battery, keyboard, trackpad, processor, and multiple digital mode apps, all nicely self-contained. And you can use it for other things, too. The only thing you'll have to add is a soundcard dongle, because the incredibly stupid audio system in most Chromebooks is too braindead to work on digital ham apps. Even a really fancy one will cost you only around $30, and there are far cheaper ones that will do. That's the dongle, not the Chromebook. I paid about $120 for this one about 5 years ago. I replaced the Chromebook with a better, faster one with more RAM, a microSD slot that doesn't stick half an inch out of the side of the machine, and USB-C. I've got WSJT-X and JS8Call on it already, some logging programs, and things like Echolink. The MDS Phaser I use it with is set up for 40m FT8 and JS8, but I can switch the JS8 to any frequency I want and run other modes if I feel like it. Perhaps some Slow-Scan images, who knows? I've seen some very fancy Raspberry Pi builds for it, though, if you want to go that route. You'd have to add a display, keyboard, mouse, and power. OR you can set it up headless and run it with a tablet or even your phone over a remote access program like VNC. But that adds even more expense unless you already have the tablet or phone. I'd still recommend a wireless keyboard, though. Typing on a phone or tablet can be a pain, and there's some really nice Bluetooth keyboards out there now, even folding ones you can stow really easily. I really like the Phaser. It's more challenging on FT8 than a full QRO station, of course, and it's VERY packable. It makes a fantastic field rig for working from parks, or probably for summit operation, though I don't do that. There's few summits you can take a wheelchair to. hi hi -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Sun, Jun 7, 2020 at 10:33 PM David Gilbert wrote: > Thanks to Ray and Gwen for the tip, and that indeed looks like a really > nice low cost way to go. But I already have a KX2 and I would still need > to bring along a notebook or small laptop computer. I could certainly > homebrew a combined unit consisting of the MDS Phasor, a Raspberry Pi, and > a 12 volt display ... total cost would probably be less than $200. I just > think that a self-contained unit would be inherently smaller, and probably > a good seller if Elecraft ever was inclined to offer one, especially if it > provided multiple bands. > > 73, > Dave AB7E > > > On Sun, Jun 7, 2020 at 6:50 PM Wayne Burdick wrote: > > > My pleasure, Paul. Feel free to repost elsewhere. > > > > And keep on truckin' :) > > > > 73, > > Wayne > > N6KR > > > > > > > On Jun 7, 2020, at 3:09 PM, Paul Gacek wrote: > > > > > > Wayne > > > > > > Thanks for promoting wilderness radio including SOTA and I hope you > > don?t mind but I copied your entire message into a post on the global > SOTA > > Reflector (watering hole). > > > > > > > > > https://reflector.sota.org.uk/t/wayne-burdick-elecraft-promoting-sota-cw-and-ssb/22983 > > > > > > You captured the essence and feeling of mountain top radio. I love it > > and never cease to get a kick out of what you describe around the moment > of > > the first contact (which includes a mountain of anticipation as to > whether > > there will be a first contact). > > > > > > Of my almost 250 mountain top activations and 40 or 50 NPOTA > > activations, I had either my KX3 or KX2 and neither have ever let me > down. > > My antennas have failed, my coax has failed and my ability to spot (I?m > SSB > > so not RBN for me) has in a hollowing gale atop a cold mountain had be > > retreat and fail but never the radio. > > > > > > Thanks Wayne (and your team) for all you have done for the /P brigade. > > > > > > Paul > > > W6PNG/M0SNA > > > www.nomadic.blog > > > > > > > > >> On Jun 7, 2020, at 2:35 PM, David Gilbert wrote: > > >> > > >> I suggested this about a year ago and got mostly dismissive replies > from > > >> the group, but I still think that a small, dedicated FT8 rig (and > > similar > > >> modes) would be an attractive offering. Something the size of a KX2 > or > > >> maybe just a little larger, with a modest display and separate > > >> processors/memory for the rig and the digital modes. It's entirely > > >> possible to run FT8 from a Raspberry Pi and an inexpensive display, > but > > an > > >> all-in-one rig would be so much more practical. The rig portion > itself > > >> could be MUCH simpler (and therefore less expensive) than a KX2. > > >> > > >> 73, > > >> Dave AB7E > > >> > > >> > > >> > > >> On Sun, Jun 7, 2020 at 11:32 AM Wayne Burdick > > wrote: > > >> > > >>> Every day, hams worldwide, young and old, summit mountains and hills > > >>> carrying the lightest possible load. They earn every calorie burned, > > and > > >>> are rewarded with vistas most people never see. Like all adventurers, > > they > > >>> proudly display nature's merit badges: scrapes, bruises, and stings. > > >>> > > >>> And then they go back for more. The number of peaks "bagged" by some > > >>> operators is staggering, as is their level of fitness and endurance. > > >>> > > >>> In addition to those formally pursuing peaks (via SOTA, or Summits on > > the > > >>> Air), there are many others who operate casually from hiking trails > and > > >>> parks. Some operate while they walk (pedestrian mobile, HT-style or > > >>> HFpack). Some operate bicycle-mobile. > > >>> > > >>> I'm writing this out of admiration for, and in solidarity with, all > of > > >>> those who commune equally with nature and the ionosphere. > > >>> > > >>> * * * > > >>> > > >>> There's one thing these hams have in common. > > >>> > > >>> Upon arriving at their destination -- tired, sweaty, hungry, elated, > or > > >>> some combination of these -- they hope to make a few QSOs. To > > experience a > > >>> synthesis of the outdoors and the radio art. > > >>> > > >>> But it isn't always easy. > > >>> > > >>> While many hams have transitioned to computer-based digital modes > such > > as > > >>> FT8, others have not. This includes ultralight travelers, as well as > > those > > >>> who seek the satisfaction of home-building simple gear and putting it > > on > > >>> the air. > > >>> > > >>> For portable operators in particular, simplicity and pragmatics often > > >>> dictate the use of CW and SSB. It may not be desirable or even > > possible to > > >>> lug a laptop in your pack, find a place to set it up, and attach its > > myriad > > >>> cables. You might struggle to see a washed-out LCD screen in direct > > >>> sunlight. High winds might capture an open laptop and sweep your gear > > away. > > >>> > > >>> Many, instead, choose traditional modes. These allow for small, > > integrated > > >>> gear that can often be hand-held. And there's the bonus of immediacy > > such > > >>> modes offer, without mediation, without constraints on duration or > > content. > > >>> > > >>> To put yourself in their shoes, imagine that you just trekked several > > >>> miles, much of it uphill. To accommodate the need for food, water, > > >>> clothing, and safety gear, you've brought a minimum amount of radio > > >>> equipment. It might be a 3-ounce CW QRP radio; an HF-VHF-UHF > portable, > > an > > >>> all-band/all-mode HF HT (like a KX2), or your latest home-brew > > transceiver. > > >>> > > >>> When you arrive at your peak, you survey the spot for a suitable > > operating > > >>> position. It might be a large, flat rock; a patch of ground not > > infested > > >>> with ants and spiders; or a shady spot with a downslope in a favored > > >>> direction. You might climb a tree. Shelter beneath a ridge. Or dangle > > your > > >>> legs and antenna from a cliff. > > >>> > > >>> Speaking of which, deployment of antennas presents another challenge. > > You > > >>> could spin-cast or toss a wire, hoping for a good landing, without > > snags. > > >>> You might wedge the feet of a tripod into rocks, then attach a small > > >>> magnetic loop. Or you might use a simple telescoping whip. > > >>> > > >>> All that effort. Now it's time to turn on the radio. > > >>> > > >>> Virtually every time I've gone on such an outing, I've made contacts. > > At > > >>> times I've been lucky. Maybe it's operating experience: knowing who > to > > >>> call. > > >>> > > >>> But sometimes there's no one around on CW or SSB. Is it propagation? > > Or is > > >>> everyone swimming in the digital sea, not paying attention to you, on > > your > > >>> remote island? > > >>> > > >>> You can spot yourself on RBN (reverse beacon network), or prearrange > > >>> skeds. But what many of us hope for is that burst of contacts. > Feeling > > like > > >>> a rare DX station. Feeling that slap-on-the-back-at-a-distance that > > says: > > >>> > > >>> "We hear you." > > >>> > > >>> * * * > > >>> > > >>> You can, of course, partake of this experience yourself. > > >>> > > >>> Whether you do or not, though: Please consider listening for those > who > > do. > > >>> Formal activations are announced in advance. See for example: > > >>> > > >>> https://www.sota.org.uk/ > > >>> > > >>> The band segments used are very small, or even a single frequency, > > making > > >>> it easy to monitor them while you engage in other activity around the > > shack > > >>> or on the air. You can use SOTA spotting websites, or just keep a > > receiver > > >>> on one of the watering holes. (The Elecraft K3/K3S/KX2/KX3 make this > > easy, > > >>> with built-in scanning. You can set the rig up for either muted or > live > > >>> audio scans, the latter making it easier to hear weak signals when > > they pop > > >>> up.) > > >>> > > >>> One final thought. In this pandemic era, some of us have had more > time > > to > > >>> get on the air, and some of us have had more chance to get outside. > > >>> > > >>> Let's do both. At the same time. > > >>> > > >>> 73, > > >>> Wayne > > >>> N6KR > > >>> > > >>> > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com From n7cqr at arrl.net Mon Jun 8 01:28:20 2020 From: n7cqr at arrl.net (Dan Presley) Date: Sun, 7 Jun 2020 22:28:20 -0700 Subject: [Elecraft] SOTA Message-ID: <0F70554B-BD0B-4BD0-BC1D-0F5E173216F9@arrl.net> After reading Wayne?s great post I couldn?t help but send this. A group of us (4 hams) hiked up to a forest service lookout tower in the Oregon cascades and operated. It?s brief but you get the idea. I?m running the KX2 and AX1 on 20. Long steep uphill hike-Clear Lake Butte near Timothy Lake,if you know the area. About 4500? actually going down was harder on the 68 year old knees than up! https://share.icloud.com/photos/0Fv8n8o31svejy1aBYdV4T0lw iCloud link available until Jul 8 Dan Presley 503-701-3871 danpresley at me. com N7CQR at arrl.net From kb1tcd at gmail.com Mon Jun 8 01:45:43 2020 From: kb1tcd at gmail.com (JP Douglas) Date: Mon, 8 Jun 2020 01:45:43 -0400 Subject: [Elecraft] 1st 80 Meter Elecraft Net In-Reply-To: References: Message-ID: <5ca7da80-8132-7b9d-dc59-9b85a2964765@gmail.com> Don't know what time the net was held but please note there is a net seven days a week at 21:00 UTC on that frequency here in Maine; Seagull net M-Sat and ME Emergency Management on Sun. Thanks and 73 Jose Douglas KB1TCD - ARES Coordinator Lincoln County ME - Net Control ME Emergency Mgmt Net On 6/7/2020 10:03 PM, Paul Van Dyke wrote: > KB9AVO: Elecraft 3.940 Net > Date: 6/7/2020 Frequency: 3.94000 > Total Number Stations = 10 > > K8NU Carl OH > WB9JNZ Eric IL > WM6P Steve GA > N9YH CHRIS IL > AB4IQ ED KY > W1GO Joseph NY > NG9NG SAM WI > KB8RXG LEWIS MI > WY3T TIM FL > KC8HMJ RICH MI > > I want to thank all those that > came up on 80m to help kick off the > 1st Elecraft net on that frequency. > > See you next week > Paul - KB9AVO - Net Control > > ---------------------------- > Post to your radio shack > > 20 Meter Elecraft Net > Sunday 18:00z 14.3035 +/- > > 40 Meter Elecraft Net > Sunday 18:45z 7.280 > > 80 Meter Elecraft Net > Sunday Night 01:00z > 3.940 +/- > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kb1tcd at gmail.com From b748 at bigpond.com Mon Jun 8 05:53:00 2020 From: b748 at bigpond.com (Grant La Delle) Date: Mon, 8 Jun 2020 19:53:00 +1000 Subject: [Elecraft] KXBT2 fault Message-ID: <19B39C03-2400-4812-B9E5-B237F47C9FF1@bigpond.com> Hi all, my Tenergy KXBT2 battery is about 3 years old and I have been charging it every few months with the recommended Tenergy charger. The green light on the charger illuminates soon each time. However, testing the battery now with a 12v 21 watt car globe, it is only lasting about 20 minutes, so it looks like maybe 1 or 2 cells are dead? I have deep cycled the battery several times, and continuously charged for four days, to no avail. Has anyone attempted a repack with new cells using the old pcb please? Be well, Grant. vk2gel. From kb1tcd at gmail.com Mon Jun 8 06:24:47 2020 From: kb1tcd at gmail.com (JP Douglas) Date: Mon, 8 Jun 2020 06:24:47 -0400 Subject: [Elecraft] 1st 80 Meter Elecraft Net In-Reply-To: <1537042310.548055.1591595717122@mail.yahoo.com> References: <5ca7da80-8132-7b9d-dc59-9b85a2964765@gmail.com> <1537042310.548055.1591595717122@mail.yahoo.com> Message-ID: Looks like some messages randomly go to junk, seems I?m getting three quarters of the messages... 73 de Jose Douglas KB1TCD Sent from my iPad > On Jun 8, 2020, at 1:55 AM, Graydon Jensen (N7RXL) wrote: > > You quoted the time... :-) > > Looks like 5 hours apart, at 01:00 UTC > > On Sun, Jun 7, 2020 at 23:48, JP Douglas > wrote: > Don't know what time the net was held > > > On 6/7/2020 10:03 PM, Paul Van Dyke wrote: > > KB9AVO: Elecraft 3.940 Net > > Date: 6/7/2020 Frequency: > > > > > ---------------------------- > > Post to your radio shack > > > > 20 Meter Elecraft Net > > Sunday 18:00z 14.3035 +/- > > > > 40 Meter Elecraft Net > > Sunday 18:45z 7.280 > > > > 80 Meter Elecraft Net > > Sunday Night 01:00z > > 3.940 +/- > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to kb1tcd at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n7rxl at att.net From kb1tcd at gmail.com Mon Jun 8 06:52:41 2020 From: kb1tcd at gmail.com (JP Douglas) Date: Mon, 8 Jun 2020 06:52:41 -0400 Subject: [Elecraft] Peaks, parks, and prayers: CW & SSB islands in a digital sea In-Reply-To: References: Message-ID: You can get a brand new Dell Win 10 solid drive laptop for $150 that also lets you use winlink, not much memory but if you are only using it for ham applications it works fine, that?s what I use as a dedicated ham laptop. 73 de Jose Douglas KB1TCD Sent from my iPad > On Jun 7, 2020, at 11:28 PM, Gwen Patton wrote: > > I use an older Chromebook, Dave. I removed Chrome OS and replaced it with > GalliumOS, a Linux distro for Chromebooks. You can get an older model > Chromebook for really cheap these days, and that gives you a display, > battery, keyboard, trackpad, processor, and multiple digital mode apps, all > nicely self-contained. And you can use it for other things, too. The only > thing you'll have to add is a soundcard dongle, because the incredibly > stupid audio system in most Chromebooks is too braindead to work on digital > ham apps. Even a really fancy one will cost you only around $30, and there > are far cheaper ones that will do. That's the dongle, not the Chromebook. I > paid about $120 for this one about 5 years ago. I replaced the Chromebook > with a better, faster one with more RAM, a microSD slot that doesn't stick > half an inch out of the side of the machine, and USB-C. > > I've got WSJT-X and JS8Call on it already, some logging programs, and > things like Echolink. The MDS Phaser I use it with is set up for 40m FT8 > and JS8, but I can switch the JS8 to any frequency I want and run other > modes if I feel like it. Perhaps some Slow-Scan images, who knows? > > I've seen some very fancy Raspberry Pi builds for it, though, if you want > to go that route. You'd have to add a display, keyboard, mouse, and power. > OR you can set it up headless and run it with a tablet or even your phone > over a remote access program like VNC. But that adds even more expense > unless you already have the tablet or phone. I'd still recommend a wireless > keyboard, though. Typing on a phone or tablet can be a pain, and there's > some really nice Bluetooth keyboards out there now, even folding ones you > can stow really easily. > > I really like the Phaser. It's more challenging on FT8 than a full QRO > station, of course, and it's VERY packable. It makes a fantastic field rig > for working from parks, or probably for summit operation, though I don't do > that. There's few summits you can take a wheelchair to. hi hi > > -=-=-=-=-=-=-=-=- > 73, > Gwen, NG3P > > >> On Sun, Jun 7, 2020 at 10:33 PM David Gilbert wrote: >> >> Thanks to Ray and Gwen for the tip, and that indeed looks like a really >> nice low cost way to go. But I already have a KX2 and I would still need >> to bring along a notebook or small laptop computer. I could certainly >> homebrew a combined unit consisting of the MDS Phasor, a Raspberry Pi, and >> a 12 volt display ... total cost would probably be less than $200. I just >> think that a self-contained unit would be inherently smaller, and probably >> a good seller if Elecraft ever was inclined to offer one, especially if it >> provided multiple bands. >> >> 73, >> Dave AB7E >> >> >>> On Sun, Jun 7, 2020 at 6:50 PM Wayne Burdick wrote: >>> >>> My pleasure, Paul. Feel free to repost elsewhere. >>> >>> And keep on truckin' :) >>> >>> 73, >>> Wayne >>> N6KR >>> >>> >>>> On Jun 7, 2020, at 3:09 PM, Paul Gacek wrote: >>>> >>>> Wayne >>>> >>>> Thanks for promoting wilderness radio including SOTA and I hope you >>> don?t mind but I copied your entire message into a post on the global >> SOTA >>> Reflector (watering hole). >>>> >>>> >>> >> https://reflector.sota.org.uk/t/wayne-burdick-elecraft-promoting-sota-cw-and-ssb/22983 >>>> >>>> You captured the essence and feeling of mountain top radio. I love it >>> and never cease to get a kick out of what you describe around the moment >> of >>> the first contact (which includes a mountain of anticipation as to >> whether >>> there will be a first contact). >>>> >>>> Of my almost 250 mountain top activations and 40 or 50 NPOTA >>> activations, I had either my KX3 or KX2 and neither have ever let me >> down. >>> My antennas have failed, my coax has failed and my ability to spot (I?m >> SSB >>> so not RBN for me) has in a hollowing gale atop a cold mountain had be >>> retreat and fail but never the radio. >>>> >>>> Thanks Wayne (and your team) for all you have done for the /P brigade. >>>> >>>> Paul >>>> W6PNG/M0SNA >>>> www.nomadic.blog >>>> >>>> >>>>> On Jun 7, 2020, at 2:35 PM, David Gilbert wrote: >>>>> >>>>> I suggested this about a year ago and got mostly dismissive replies >> from >>>>> the group, but I still think that a small, dedicated FT8 rig (and >>> similar >>>>> modes) would be an attractive offering. Something the size of a KX2 >> or >>>>> maybe just a little larger, with a modest display and separate >>>>> processors/memory for the rig and the digital modes. It's entirely >>>>> possible to run FT8 from a Raspberry Pi and an inexpensive display, >> but >>> an >>>>> all-in-one rig would be so much more practical. The rig portion >> itself >>>>> could be MUCH simpler (and therefore less expensive) than a KX2. >>>>> >>>>> 73, >>>>> Dave AB7E >>>>> >>>>> >>>>> >>>>> On Sun, Jun 7, 2020 at 11:32 AM Wayne Burdick >>> wrote: >>>>> >>>>>> Every day, hams worldwide, young and old, summit mountains and hills >>>>>> carrying the lightest possible load. They earn every calorie burned, >>> and >>>>>> are rewarded with vistas most people never see. Like all adventurers, >>> they >>>>>> proudly display nature's merit badges: scrapes, bruises, and stings. >>>>>> >>>>>> And then they go back for more. The number of peaks "bagged" by some >>>>>> operators is staggering, as is their level of fitness and endurance. >>>>>> >>>>>> In addition to those formally pursuing peaks (via SOTA, or Summits on >>> the >>>>>> Air), there are many others who operate casually from hiking trails >> and >>>>>> parks. Some operate while they walk (pedestrian mobile, HT-style or >>>>>> HFpack). Some operate bicycle-mobile. >>>>>> >>>>>> I'm writing this out of admiration for, and in solidarity with, all >> of >>>>>> those who commune equally with nature and the ionosphere. >>>>>> >>>>>> * * * >>>>>> >>>>>> There's one thing these hams have in common. >>>>>> >>>>>> Upon arriving at their destination -- tired, sweaty, hungry, elated, >> or >>>>>> some combination of these -- they hope to make a few QSOs. To >>> experience a >>>>>> synthesis of the outdoors and the radio art. >>>>>> >>>>>> But it isn't always easy. >>>>>> >>>>>> While many hams have transitioned to computer-based digital modes >> such >>> as >>>>>> FT8, others have not. This includes ultralight travelers, as well as >>> those >>>>>> who seek the satisfaction of home-building simple gear and putting it >>> on >>>>>> the air. >>>>>> >>>>>> For portable operators in particular, simplicity and pragmatics often >>>>>> dictate the use of CW and SSB. It may not be desirable or even >>> possible to >>>>>> lug a laptop in your pack, find a place to set it up, and attach its >>> myriad >>>>>> cables. You might struggle to see a washed-out LCD screen in direct >>>>>> sunlight. High winds might capture an open laptop and sweep your gear >>> away. >>>>>> >>>>>> Many, instead, choose traditional modes. These allow for small, >>> integrated >>>>>> gear that can often be hand-held. And there's the bonus of immediacy >>> such >>>>>> modes offer, without mediation, without constraints on duration or >>> content. >>>>>> >>>>>> To put yourself in their shoes, imagine that you just trekked several >>>>>> miles, much of it uphill. To accommodate the need for food, water, >>>>>> clothing, and safety gear, you've brought a minimum amount of radio >>>>>> equipment. It might be a 3-ounce CW QRP radio; an HF-VHF-UHF >> portable, >>> an >>>>>> all-band/all-mode HF HT (like a KX2), or your latest home-brew >>> transceiver. >>>>>> >>>>>> When you arrive at your peak, you survey the spot for a suitable >>> operating >>>>>> position. It might be a large, flat rock; a patch of ground not >>> infested >>>>>> with ants and spiders; or a shady spot with a downslope in a favored >>>>>> direction. You might climb a tree. Shelter beneath a ridge. Or dangle >>> your >>>>>> legs and antenna from a cliff. >>>>>> >>>>>> Speaking of which, deployment of antennas presents another challenge. >>> You >>>>>> could spin-cast or toss a wire, hoping for a good landing, without >>> snags. >>>>>> You might wedge the feet of a tripod into rocks, then attach a small >>>>>> magnetic loop. Or you might use a simple telescoping whip. >>>>>> >>>>>> All that effort. Now it's time to turn on the radio. >>>>>> >>>>>> Virtually every time I've gone on such an outing, I've made contacts. >>> At >>>>>> times I've been lucky. Maybe it's operating experience: knowing who >> to >>>>>> call. >>>>>> >>>>>> But sometimes there's no one around on CW or SSB. Is it propagation? >>> Or is >>>>>> everyone swimming in the digital sea, not paying attention to you, on >>> your >>>>>> remote island? >>>>>> >>>>>> You can spot yourself on RBN (reverse beacon network), or prearrange >>>>>> skeds. But what many of us hope for is that burst of contacts. >> Feeling >>> like >>>>>> a rare DX station. Feeling that slap-on-the-back-at-a-distance that >>> says: >>>>>> >>>>>> "We hear you." >>>>>> >>>>>> * * * >>>>>> >>>>>> You can, of course, partake of this experience yourself. >>>>>> >>>>>> Whether you do or not, though: Please consider listening for those >> who >>> do. >>>>>> Formal activations are announced in advance. See for example: >>>>>> >>>>>> https://www.sota.org.uk/ >>>>>> >>>>>> The band segments used are very small, or even a single frequency, >>> making >>>>>> it easy to monitor them while you engage in other activity around the >>> shack >>>>>> or on the air. You can use SOTA spotting websites, or just keep a >>> receiver >>>>>> on one of the watering holes. (The Elecraft K3/K3S/KX2/KX3 make this >>> easy, >>>>>> with built-in scanning. You can set the rig up for either muted or >> live >>>>>> audio scans, the latter making it easier to hear weak signals when >>> they pop >>>>>> up.) >>>>>> >>>>>> One final thought. In this pandemic era, some of us have had more >> time >>> to >>>>>> get on the air, and some of us have had more chance to get outside. >>>>>> >>>>>> Let's do both. At the same time. >>>>>> >>>>>> 73, >>>>>> Wayne >>>>>> N6KR >>>>>> >>>>>> >>> >>> >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ardrhi at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kb1tcd at gmail.com From pvandyke1953 at gmail.com Mon Jun 8 07:52:09 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Mon, 8 Jun 2020 07:52:09 -0400 Subject: [Elecraft] 1st 80 Meter Elecraft Net In-Reply-To: <5ca7da80-8132-7b9d-dc59-9b85a2964765@gmail.com> References: <5ca7da80-8132-7b9d-dc59-9b85a2964765@gmail.com> Message-ID: Good morning I knew there was a great net on that frequency, so I made sure it was at 0100 Zulu to make sure I gave it a wide berth. I did my time in the trenches, and wanted to make sure that we didn't disturb a critical net. Thank you all for your fine work. Paul - KB9AVO 80M Net Control Ex-local ARES/RACES Director On Mon, Jun 8, 2020, 1:47 AM JP Douglas wrote: > Don't know what time the net was held but please note there is a net > seven days a week at 21:00 UTC on that frequency here in Maine; Seagull > net M-Sat and ME Emergency Management on Sun. > > Thanks and 73 > > Jose Douglas KB1TCD - ARES Coordinator Lincoln County ME - Net Control > ME Emergency Mgmt Net > > > > On 6/7/2020 10:03 PM, Paul Van Dyke wrote: > > KB9AVO: Elecraft 3.940 Net > > Date: 6/7/2020 Frequency: 3.94000 > > Total Number Stations = 10 > > > > K8NU Carl OH > > WB9JNZ Eric IL > > WM6P Steve GA > > N9YH CHRIS IL > > AB4IQ ED KY > > W1GO Joseph NY > > NG9NG SAM WI > > KB8RXG LEWIS MI > > WY3T TIM FL > > KC8HMJ RICH MI > > > > I want to thank all those that > > came up on 80m to help kick off the > > 1st Elecraft net on that frequency. > > > > See you next week > > Paul - KB9AVO - Net Control > > > > ---------------------------- > > Post to your radio shack > > > > 20 Meter Elecraft Net > > Sunday 18:00z 14.3035 +/- > > > > 40 Meter Elecraft Net > > Sunday 18:45z 7.280 > > > > 80 Meter Elecraft Net > > Sunday Night 01:00z > > 3.940 +/- > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to kb1tcd at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pvandyke1953 at gmail.com > From n4kd at bellsouth.net Mon Jun 8 08:17:18 2020 From: n4kd at bellsouth.net (n4kd) Date: Mon, 8 Jun 2020 07:17:18 -0500 Subject: [Elecraft] KX3 For Sale In-Reply-To: References: Message-ID: The KX3 is sold. Thanks for your interest. - 73, Dave N4KD > On Jun 7, 2020, at 16:06, David Kuechenmeister wrote: > > ?I've decided to part with my Kx3, in favor of the Kx1 for portable operations. Before I put this up on QRZ, I thought I'd offer it for sale here. > > It works very well. It's just that I usually find myself on 30 or 40 meter CW and it's far to capable a rig to just use 10% of the features. Besides, I want a new antenna and this will get me there. Yes, it's an expensive antenna! > > Elecraft KX3 with all the built in options, > - KXFL3 Roofing Filter > - KXAT3 Antenna Tuner > - KXBC3 NiMH Charger/RT Clock > - KX3-2M Transverter > > And these accessories, > - MH3 Hand Mic > - KXPD3 Paddle > - KX3-PCKT Cable Kit > > Plus the KE7X book, "The Elecraft KX3-Portable", as well as printed owner's and assembly manuals. > > Excellent condition. > Price is $1400.00, includes ground shipping within CONUS > Pictures available on request. > > Payment by PayPal or USPS money order. > > Thanks for your interest, > > vy 73, > > Dave, N4KD > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n4kd at bellsouth.net From tson35 at icloud.com Mon Jun 8 08:37:33 2020 From: tson35 at icloud.com (Tommy Judson) Date: Mon, 8 Jun 2020 07:37:33 -0500 Subject: [Elecraft] KX3 Utilities Download In-Reply-To: References: Message-ID: <99F357AA-7EDD-4C0F-AC33-850BFE59E617@icloud.com> Good Morning, Newbie Here, Wanting to download KX3 Utilities https://ftp.elecraft.com/KX3/Utilities/KX3UtilityMAC64BIT_1_19_9_6N.zip but the download will not finish before stopping. Trying to download into a 2017 MacBook Pro running MacOS Mojave Ver 10.14.6 with 435 gb free storage and 8 mb ram. The files ffwnotes and FTDIUSBSerialDriver_v2_4_2.dmg downloaded ok. Should the KX3 be connected when selecting the utilities file noted above to be download? Comments will be appreciated. Thank you, Tommy From pvandyke1953 at gmail.com Mon Jun 8 10:10:39 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Mon, 8 Jun 2020 10:10:39 -0400 Subject: [Elecraft] "When is the Elecraft Net?" .. Which one?? Message-ID: We have various ones ... stretch and meet others. Propagation means it all changes.. Put a copy up in your shack Paul - KB9AVO The Elecraft Nets ---------------------------------- 20 Meter SSB Elecraft Net Sunday 14.3035 +/- kHz at 1800Z 40 Meter SSB Elecraft Net Sunday 7.280 kHz at 18:45z 20 Meter CW Elecraft Net Sunday 14.050.5 kHz at 2200z: 40 Meter CW Elecraft Net Sunday 7.047.5 kHz at 0000z: 80 Meter SSB Elecraft Net Sunday Night 3.940+/- at 18:45z From n4zr at comcast.net Mon Jun 8 10:41:50 2020 From: n4zr at comcast.net (N4ZR) Date: Mon, 8 Jun 2020 10:41:50 -0400 Subject: [Elecraft] CW rise time setting In-Reply-To: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> References: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> Message-ID: <66f7278d-b885-3a5f-a5e1-4371ea413a94@comcast.net> Good! 73, Pete N4ZR Check out the Reverse Beacon Network at , now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX cluster. On 6/7/2020 9:45 PM, Wayne Burdick wrote: >> N4ZR wrote: >> >> Will the K4 have options for setting CW rise and fall times...? > Hi Pete, > > Probably not. We've always been very careful to ensure our rigs have an exceptional clean, click-free CW signal. (Third-party testing bears this out.) Minimizing the bandwidth requires a very specific rise/fall time and a hand-crafted sigmoidal shaping function in DSP. > > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't reveal what's in her chocolate-chip cookies, and only selected firmware monks--sworn to secrecy--are privy to Elecraft's keying envelope coefficients :) > > 73, > Wayne > N6KR > > > > From kurtt at pinrod.com Mon Jun 8 10:45:29 2020 From: kurtt at pinrod.com (Kurt Pawlikowski) Date: Mon, 8 Jun 2020 09:45:29 -0500 Subject: [Elecraft] KXPA100: PA Key Delay Message-ID: Hi! ??? I'm getting ready for Field Day. I use a circular polarized antenna and a device to switch polarization between transmit and receive. When sending code, the results in the relays changing with every dit and dah... I was wondering if there is an adjustment to increase the "release" time for this output so it would not switch back to the receive state immediately. I was contemplating a small circuit to accomplish this, but thought there might be a built-in solution. Any thoughts? Thanks! ??? kurtt WB9FMC From ray2.s at btinternet.com Mon Jun 8 11:26:19 2020 From: ray2.s at btinternet.com (Ray Spreadbury) Date: Mon, 8 Jun 2020 16:26:19 +0100 Subject: [Elecraft] K3S dead after attempted firmware update - fixed Message-ID: <00fb01d63da9$2f7f0830$8e7d1890$@btinternet.com> Spot on Ian, ... yes it did have the recent W10 update so that could have been the problem! Cheers & 73 Ray G3XLG From g8kbvdave at googlemail.com Mon Jun 8 06:06:13 2020 From: g8kbvdave at googlemail.com (Dave B) Date: Mon, 8 Jun 2020 11:06:13 +0100 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: <301b8035-a247-d9e5-b505-fef637de62ba@googlemail.com> Try a plastic Owl, Hawk, or other dummy predator mounted on the near the antenna, but in full view.. It too, may detune things a bit if mounted on it, but at least it'll be there all the time!... 73. Dave G0WBX. On 07/06/2020 18:29, elecraft-request at mailman.qth.net wrote: > From: Andy Durbin > To: "elecraft at mailman.qth.net" > Subject: [Elecraft] [OT] Birds and DX > Message-ID: > > > Content-Type: text/plain; charset="iso-8859-1" > > I use a home brew mag loop on 30 m band and work into Asia most mornings with it. The loop tunes to a near perfect match (1.00:1 SWR) but becomes instantly detuned when a dove perches on top of it. SWR jumps instantly to > 3.0:1 and trips my High SWR monitor. The birds look stupid but they are smart enough not to straddle the loop opening. I imagine full loop voltage between their legs would de-tune them a bit but they just perch one side or the other. > > Damn dove nearly cost me a QSO with JD1 this morning and that was new DX for 30 m. I tail ended with FT8, he came back, I started to send my report, High SWR trip, run to back door to chase the dove away, and got back before JD1 had given up on me. > > So how to keep birds of a mag loop without lowing the Q? > > 73, > Andy k3wyc -- Created on and sent from a Unix like PC running and using free and open source software: From nr4c at widomaker.com Mon Jun 8 11:53:56 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 8 Jun 2020 11:53:56 -0400 Subject: [Elecraft] KXPA100: PA Key Delay In-Reply-To: References: Message-ID: <64D0AE84-9A50-4080-AE84-4FEB18707C8B@widomaker.com> Have you considered the VOX delay? Sent from my iPhone ...nr4c. bill > On Jun 8, 2020, at 10:49 AM, Kurt Pawlikowski wrote: > > ?Hi! > > I'm getting ready for Field Day. I use a circular polarized antenna and a device to switch polarization between transmit and receive. When sending code, the results in the relays changing with every dit and dah... I was wondering if there is an adjustment to increase the "release" time for this output so it would not switch back to the receive state immediately. I was contemplating a small circuit to accomplish this, but thought there might be a built-in solution. Any thoughts? Thanks! > > kurtt WB9FMC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From wes_n7ws at triconet.org Mon Jun 8 12:13:33 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 8 Jun 2020 09:13:33 -0700 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> <1e2a6bfd-ac71-f091-471 7-2c804dbb8e9e@nk7z.net> Message-ID: <6ddc74d3-ab58-dda2-2632-dfa7fe0f68bb@triconet.org> You might have, but you're not who I'm thinking of:-) On 6/6/2020 7:45 PM, Dave Cole wrote: > Thanks for the info, I think the other ham that asked Wayne, was me... :) From rastuts at gmail.com Mon Jun 8 12:21:03 2020 From: rastuts at gmail.com (Richard Stutsman) Date: Mon, 8 Jun 2020 09:21:03 -0700 Subject: [Elecraft] CW rise time setting Message-ID: I for one would like to have some control over the rise/fall times. You want the cleanest (narrowest) of CW signals when operating on a crowded band or in a contest - unless you're a rare DX station. Most of my operations are 22wpm rag chews on very uncrowded bands. We're often the only discernible signals on an entire CW band. And conditions are often noisy with deep QSB. Why not allow those of us operating in those circumstances to shorten the rise times a bit, which makes it easier to copy in noisy conditions, when any close-in clicks or thumps aren't going to bother anybody? Copying a 'soft' weak CW signal is like trying to read a 'crisp' signal that's an entire S-unit weaker, IMO. My TS-590sg let's me do that, and I love it! Will the K4 sound as good as a Drake T4C? (Just askin'.) Rick N6IET > N4ZR wrote: > > > > Will the K4 have options for setting CW rise and fall times...? > Hi Pete, > Probably not. We've always been very careful to ensure our rigs have an > exceptional clean, click-free CW signal. (Third-party testing bears this > out.) Minimizing the bandwidth requires a very specific rise/fall time and > a hand-crafted sigmoidal shaping function in DSP. > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't > reveal what's in her chocolate-chip cookies, and only selected firmware > monks--sworn to secrecy--are privy to Elecraft's keying envelope > coefficients :) > 73, > Wayne > N6KR From dobox at suddenlink.net Mon Jun 8 13:01:57 2020 From: dobox at suddenlink.net (David Box) Date: Mon, 8 Jun 2020 12:01:57 -0500 Subject: [Elecraft] CW rise time setting In-Reply-To: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> References: <7E0E17DE-AD68-48EB-905B-3CF8D44CEA04@elecraft.com> Message-ID: Glad to hear that we can count on the K4 maintaining the excellent CW characteristics.? I frequently will look at signals I am receiving measuring the transmitted waveform based on what I see on the P3 and it never ceases to amaze me about how different brands can be identified based on the waveform shape and spectral width, not to mention the audible key clicks. de Dave K5MWR On 6/7/2020 20:45, Wayne Burdick wrote: >> N4ZR wrote: >> >> Will the K4 have options for setting CW rise and fall times...? > Hi Pete, > > Probably not. We've always been very careful to ensure our rigs have an exceptional clean, click-free CW signal. (Third-party testing bears this out.) Minimizing the bandwidth requires a very specific rise/fall time and a hand-crafted sigmoidal shaping function in DSP. > > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't reveal what's in her chocolate-chip cookies, and only selected firmware monks--sworn to secrecy--are privy to Elecraft's keying envelope coefficients :) > > 73, > Wayne > N6KR > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dobox at suddenlink.net > From ab7echo at gmail.com Mon Jun 8 13:26:55 2020 From: ab7echo at gmail.com (David Gilbert) Date: Mon, 8 Jun 2020 10:26:55 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: References: Message-ID: You don't need to generate clicks to have a crisp CW tone. Elecraft uses a pretty much optimally shaped waveform (some version of a cosine function) and if I remember correctly the rise time is only about 2.5 msec, although I could be wrong about that last part. And while you may be careful not to use short rise/fall times when the band is active, in the past there have been folks on the contesting reflector who openly admitted they purposely generate clicks by shortening the rise/fall times to give themselves elbow room. I will always appreciate that Elecraft doesn't give those miscreants the means to pollute the band. 73, Dave AB7E On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman wrote: > I for one would like to have some control over the rise/fall times. > > You want the cleanest (narrowest) of CW signals when operating on a crowded > band or in a contest - unless you're a rare DX station. Most of my > operations are 22wpm rag chews on very uncrowded bands. We're often the > only discernible signals on an entire CW band. And conditions are often > noisy with deep QSB. Why not allow those of us operating in those > circumstances to shorten the rise times a bit, which makes it easier to > copy in noisy conditions, when any close-in clicks or thumps aren't going > to bother anybody? Copying a 'soft' weak CW signal is like trying to read a > 'crisp' signal that's an entire S-unit weaker, IMO. > > My TS-590sg let's me do that, and I love it! > > Will the K4 sound as good as a Drake T4C? (Just askin'.) > > Rick N6IET > > > N4ZR wrote: > > > > > > Will the K4 have options for setting CW rise and fall times...? > > Hi Pete, > > Probably not. We've always been very careful to ensure our rigs have an > > exceptional clean, click-free CW signal. (Third-party testing bears this > > out.) Minimizing the bandwidth requires a very specific rise/fall time > and > > a hand-crafted sigmoidal shaping function in DSP. > > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't > > reveal what's in her chocolate-chip cookies, and only selected firmware > > monks--sworn to secrecy--are privy to Elecraft's keying envelope > > coefficients :) > > 73, > > Wayne > > N6KR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ab7echo at gmail.com > From rastuts at gmail.com Mon Jun 8 13:30:59 2020 From: rastuts at gmail.com (Richard Stutsman) Date: Mon, 8 Jun 2020 10:30:59 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: References: Message-ID: Yes, I would regard a 2.5 msec rise time (using appropriate sigmoid shaping) to probably be ideal, in which case I would have no desire to modify or shorten it. I'll bet it will sound even better than a Drake or a Ten-Tec! I hereby withdraw my previous request/opinion. Rick N6IET On Mon, Jun 8, 2020 at 10:27 AM David Gilbert wrote: > You don't need to generate clicks to have a crisp CW tone. Elecraft uses > a pretty much optimally shaped waveform (some version of a cosine function) > and if I remember correctly the rise time is only about 2.5 msec, although > I could be wrong about that last part. And while you may be careful not to > use short rise/fall times when the band is active, in the past there have > been folks on the contesting reflector who openly admitted they purposely > generate clicks by shortening the rise/fall times to give themselves elbow > room. I will always appreciate that Elecraft doesn't give those miscreants > the means to pollute the band. > > 73, > Dave AB7E > > On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman wrote: > >> I for one would like to have some control over the rise/fall times. >> >> You want the cleanest (narrowest) of CW signals when operating on a >> crowded >> band or in a contest - unless you're a rare DX station. Most of my >> operations are 22wpm rag chews on very uncrowded bands. We're often the >> only discernible signals on an entire CW band. And conditions are often >> noisy with deep QSB. Why not allow those of us operating in those >> circumstances to shorten the rise times a bit, which makes it easier to >> copy in noisy conditions, when any close-in clicks or thumps aren't going >> to bother anybody? Copying a 'soft' weak CW signal is like trying to read >> a >> 'crisp' signal that's an entire S-unit weaker, IMO. >> >> My TS-590sg let's me do that, and I love it! >> >> Will the K4 sound as good as a Drake T4C? (Just askin'.) >> >> Rick N6IET >> >> > N4ZR wrote: >> > > >> > > Will the K4 have options for setting CW rise and fall times...? >> > Hi Pete, >> > Probably not. We've always been very careful to ensure our rigs have an >> > exceptional clean, click-free CW signal. (Third-party testing bears this >> > out.) Minimizing the bandwidth requires a very specific rise/fall time >> and >> > a hand-crafted sigmoidal shaping function in DSP. >> > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't >> > reveal what's in her chocolate-chip cookies, and only selected firmware >> > monks--sworn to secrecy--are privy to Elecraft's keying envelope >> > coefficients :) >> > 73, >> > Wayne >> > N6KR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ab7echo at gmail.com >> > From jim at audiosystemsgroup.com Mon Jun 8 13:35:48 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 8 Jun 2020 10:35:48 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: References: Message-ID: On 6/8/2020 9:21 AM, Richard Stutsman wrote: > I for one would like to have some control over the rise/fall times. > > You want the cleanest (narrowest) of CW signals when operating on a crowded > band or in a contest - unless you're a rare DX station. Most of my > operations are 22wpm rag chews on very uncrowded bands. We're often the > only discernible signals on an entire CW band. And conditions are often > noisy with deep QSB. Why not allow those of us operating in those > circumstances to shorten the rise times a bit, which makes it easier to > copy in noisy conditions, Because that's not how it works. Keying in all Elecraft rigs since the K3 has been carefully shaped for optimum copy AND minimum bandwidth. What Elecraft does is FAR superior to those rigs with adjustable rise time. > My TS-590sg let's me do that, and I love it! You should ALWAYS run it at the longest rise time setting. >Will the K4 sound as good as a Drake T4C? (Just askin'.) Although I worked for Drake doing final test of their first TR3s, I can't say that I know what a T4C sounds like. Do you? 73, Jim K9YC From ehr at qrv.com Mon Jun 8 14:51:11 2020 From: ehr at qrv.com (E.H. Russell) Date: Mon, 8 Jun 2020 14:51:11 -0400 Subject: [Elecraft] CW rise time setting In-Reply-To: References: Message-ID: <002501d63dc5$c7c8b700$575a2500$@qrv.com> I'm used to CW rise times in th 4-7ms range. Is this 2.5ms arrived at by a different metric? Is the curve added by sigmoidal shaping somehow excluded from the measurement? Ed / w2rf -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Richard Stutsman Sent: Monday, June 8, 2020 1:31 PM To: David Gilbert Cc: Elecraft Reflector Subject: Re: [Elecraft] CW rise time setting Yes, I would regard a 2.5 msec rise time (using appropriate sigmoid shaping) to probably be ideal, in which case I would have no desire to modify or shorten it. I'll bet it will sound even better than a Drake or a Ten-Tec! I hereby withdraw my previous request/opinion. Rick N6IET On Mon, Jun 8, 2020 at 10:27 AM David Gilbert < ab7echo at gmail.com> wrote: > You don't need to generate clicks to have a crisp CW tone. Elecraft > uses a pretty much optimally shaped waveform (some version of a cosine > function) and if I remember correctly the rise time is only about 2.5 > msec, although I could be wrong about that last part. And while you > may be careful not to use short rise/fall times when the band is > active, in the past there have been folks on the contesting reflector > who openly admitted they purposely generate clicks by shortening the > rise/fall times to give themselves elbow room. I will always > appreciate that Elecraft doesn't give those miscreants the means to pollute the band. > > 73, > Dave AB7E > > On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman < rastuts at gmail.com> wrote: > >> I for one would like to have some control over the rise/fall times. >> >> You want the cleanest (narrowest) of CW signals when operating on a >> crowded band or in a contest - unless you're a rare DX station. Most >> of my operations are 22wpm rag chews on very uncrowded bands. We're >> often the only discernible signals on an entire CW band. And >> conditions are often noisy with deep QSB. Why not allow those of us >> operating in those circumstances to shorten the rise times a bit, >> which makes it easier to copy in noisy conditions, when any close-in >> clicks or thumps aren't going to bother anybody? Copying a 'soft' >> weak CW signal is like trying to read a 'crisp' signal that's an >> entire S-unit weaker, IMO. >> >> My TS-590sg let's me do that, and I love it! >> >> Will the K4 sound as good as a Drake T4C? (Just askin'.) >> >> Rick N6IET >> >> > N4ZR wrote: >> > > >> > > Will the K4 have options for setting CW rise and fall times...? >> > Hi Pete, >> > Probably not. We've always been very careful to ensure our rigs >> > have an exceptional clean, click-free CW signal. (Third-party >> > testing bears this >> > out.) Minimizing the bandwidth requires a very specific rise/fall >> > time >> and >> > a hand-crafted sigmoidal shaping function in DSP. >> > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields >> > won't reveal what's in her chocolate-chip cookies, and only >> > selected firmware monks--sworn to secrecy--are privy to Elecraft's >> > keying envelope coefficients :) 73, Wayne N6KR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> ab7echo at gmail.com >> > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ehr at qrv.com From Lyn at LNAINC.com Mon Jun 8 14:59:57 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Mon, 8 Jun 2020 13:59:57 -0500 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: References: Message-ID: <024701d63dc7$013fc130$03bf4390$@LNAINC.com> I saw this on Shark Tank. They are EXTREMELY sharp! 73 Lyn, W0LEN https://allsharktankproducts.com/shark-tank-products-home/critter-pricker-raccoon-deterrent/#:~:text=Critter%20Prickers%20are%20strips%20of,of%20roughly%20three%20square%20feet. -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of RICHARD Martin Sent: Sunday, June 07, 2020 5:02 PM To: Michael K Bottles Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] [OT] Birds and DX You can purchase light weight telescoping fiberglass poles (about 25') with a kite that looks like a bird of prey. The kite bobs, swirls and dives. Quite an entertaining display. They work quite well keeping the birds and squirrels away from our fruit trees. They are also popular along Sunset Drive in Pacific Grove to deal with the seagulls. 73s Dick KN6AA On Sun, Jun 7, 2020, 12:09 Michael K Bottles via Elecraft < elecraft at mailman.qth.net> wrote: > Yup, that is a flashy sparkly thing like the ribbon I suggested. Birds > don?t seem to like that. > > Sent from my iPad > > > On Jun 7, 2020, at 11:54, Paul Evans W4/VP9KF wrote: > > > > ?This _always_ works, as proven in a marina on my boat (and those that > > adopted it!): > > > > Take old CD. Drill a small hole near the edge. Dangle from object or > > anything nearby with thin string. > > > > Works when every other possible bird scarer had failed. No birds. No > poop. > > > > 73, Paul. > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to k7im at icloud.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dick93117 at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From n1al at sonic.net Mon Jun 8 15:14:50 2020 From: n1al at sonic.net (Alan Bloom) Date: Mon, 08 Jun 2020 13:14:50 -0600 Subject: [Elecraft] CW rise time setting In-Reply-To: <002501d63dc5$c7c8b700$575a2500$@qrv.com> References: <002501d63dc5$c7c8b700$575a2500$@qrv.com> Message-ID: <9ae8e8d61165d1116bb1e93cb441fadd@sonic.net> In the "good old days" key shaping was done simply by adding a capacitor to the key line or equivalent. That results in an exponential rise and/or fall time, which is not optimum, so the time constant had to be set pretty slow to avoid key clicks. Typically 5-10 ms. 10 ms results in "mushy" keying, especially at high CW speeds. Raised-cosine key shaping is close to optimum and is easy to implement with a DSP. It allows faster rise/fall times without key clicks. I assume Elecraft is using something like that. Alan N1AL On 2020-06-08 12:51, E.H. Russell wrote: > I'm used to CW rise times in th 4-7ms range. Is this 2.5ms arrived at by a > different metric? Is the curve added by sigmoidal shaping somehow excluded > from the measurement? > > Ed / w2rf > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Richard Stutsman > Sent: Monday, June 8, 2020 1:31 PM > To: David Gilbert > Cc: Elecraft Reflector > Subject: Re: [Elecraft] CW rise time setting > > Yes, I would regard a 2.5 msec rise time (using appropriate sigmoid > > shaping) to probably be ideal, in which case I would have no desire to > modify or shorten it. I'll bet it will sound even better than a Drake or a > Ten-Tec! > > I hereby withdraw my previous request/opinion. > > Rick N6IET > > On Mon, Jun 8, 2020 at 10:27 AM David Gilbert < > ab7echo at gmail.com> wrote: > >> You don't need to generate clicks to have a crisp CW tone. Elecraft > >> uses a pretty much optimally shaped waveform (some version of a cosine > >> function) and if I remember correctly the rise time is only about 2.5 > >> msec, although I could be wrong about that last part. And while you > >> may be careful not to use short rise/fall times when the band is > >> active, in the past there have been folks on the contesting reflector > >> who openly admitted they purposely generate clicks by shortening the > >> rise/fall times to give themselves elbow room. I will always > >> appreciate that Elecraft doesn't give those miscreants the means to > pollute the band. > >> 73, > >> Dave AB7E > >> On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman < > rastuts at gmail.com> wrote: > > I for one would like to have some control over the rise/fall times. > >> You want the cleanest (narrowest) of CW signals when operating on a >> crowded band or in a contest - unless you're a rare DX station. Most >> of my operations are 22wpm rag chews on very uncrowded bands. We're >> often the only discernible signals on an entire CW band. And >> conditions are often noisy with deep QSB. Why not allow those of us >> operating in those circumstances to shorten the rise times a bit, >> which makes it easier to copy in noisy conditions, when any close-in >> clicks or thumps aren't going to bother anybody? Copying a 'soft' >> weak CW signal is like trying to read a 'crisp' signal that's an >> entire S-unit weaker, IMO. > >> My TS-590sg let's me do that, and I love it! > >> Will the K4 sound as good as a Drake T4C? (Just askin'.) > >> Rick N6IET > > N4ZR wrote: > > Will the K4 have options for setting CW rise and fall times...? > Hi Pete, > Probably not. We've always been very careful to ensure our rigs > have an exceptional clean, click-free CW signal. (Third-party > testing bears this > out.) Minimizing the bandwidth requires a very specific rise/fall > time >> and > a hand-crafted sigmoidal shaping function in DSP. > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields > won't reveal what's in her chocolate-chip cookies, and only > selected firmware monks--sworn to secrecy--are privy to Elecraft's > keying envelope coefficients :) 73, Wayne N6KR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net > >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> ab7echo at gmail.com > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ehr at qrv.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to alan at elecraft.com From kl7cw at mtaonline.net Mon Jun 8 15:21:50 2020 From: kl7cw at mtaonline.net (Frederick Dwight) Date: Mon, 8 Jun 2020 11:21:50 -0800 Subject: [Elecraft] zero-beating a KX1 Message-ID: <20200608192248481@smtp.email-protect.gosecure.net> You will enjoy your KX1, as I have mine. I made thousands of QSO?s. If you can ?zero-beat? within approximately 100 Hz this should be plenty close most of the time. I am a musician so I just adjusted the tone a bit above high C which is an octave above middle C. Actually a D is 587 Hz, which is very close. In your case, I would see if the N0SS website is still active, which it was long after he became a SK. If you can find the schematic, it should be an easy build. I built a tone detector many years ago to drive my telegraph sounders many years ago. I used a $2 eight pin DIP tone decoder chip still available from Digikey and others. It was a LM567 and I set it up for a 80 Hz BW and 600 Hz detect frequency. It is also available for around $1 in the SOIC pkg. I put in a LED which flashes right along with the CW when my RX is tuned close to 600 Hz. The data sheets give info on designing your circuit. Adjust the level into the chip so it reads the CW, but not the noise, not at all a critical adjustment. Another idea is to build a 600 Hz oscillator, or get a tuning fork, and just match the frequency, however not all folks can quickly match frequencies. Possibly the best idea is to build a sharp 600 Hz audio filter, and switch it into the circuit when zero-beating and also it will be useful for operating in tough conditions. A deluxe version on the tone detector could even have something like a 560 Hz, a 600 Hz, and a 640 Hz Hz decoder and use a different color LED for each frequency?.really an overkill, but we all like flashing lights ! Good Luck Rick KL7CW Sent from Mail for Windows 10 From k7im at icloud.com Mon Jun 8 15:23:20 2020 From: k7im at icloud.com (Michael K Bottles) Date: Mon, 8 Jun 2020 12:23:20 -0700 Subject: [Elecraft] [OT] Birds and DX In-Reply-To: <024701d63dc7$013fc130$03bf4390$@LNAINC.com> References: <024701d63dc7$013fc130$03bf4390$@LNAINC.com> Message-ID: <32C29348-7981-4EBB-B602-FB26B14F0437@icloud.com> I use that on my boats to deter messy river Otters. Very effective Sent from my iPad > On Jun 8, 2020, at 12:00, Lyn Norstad wrote: > > ?I saw this on Shark Tank. They are EXTREMELY sharp! > > 73 > Lyn, W0LEN > > https://allsharktankproducts.com/shark-tank-products-home/critter-pricker-raccoon-deterrent/#:~:text=Critter%20Prickers%20are%20strips%20of,of%20roughly%20three%20square%20feet. > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of RICHARD Martin > Sent: Sunday, June 07, 2020 5:02 PM > To: Michael K Bottles > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] [OT] Birds and DX > > You can purchase light weight telescoping fiberglass poles (about 25') with > a kite that looks like a bird of prey. The kite bobs, swirls and dives. > Quite an entertaining display. > > They work quite well keeping the birds and squirrels away from our fruit > trees. They are also popular along Sunset Drive in Pacific Grove to deal > with the seagulls. > > 73s > Dick KN6AA > >> On Sun, Jun 7, 2020, 12:09 Michael K Bottles via Elecraft < >> elecraft at mailman.qth.net> wrote: >> >> Yup, that is a flashy sparkly thing like the ribbon I suggested. Birds >> don?t seem to like that. >> >> Sent from my iPad >> >>>> On Jun 7, 2020, at 11:54, Paul Evans W4/VP9KF wrote: >>> >>> ?This _always_ works, as proven in a marina on my boat (and those that >>> adopted it!): >>> >>> Take old CD. Drill a small hole near the edge. Dangle from object or >>> anything nearby with thin string. >>> >>> Works when every other possible bird scarer had failed. No birds. No >> poop. >>> >>> 73, Paul. >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to k7im at icloud.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to dick93117 at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lyn at lnainc.com > From ehr at qrv.com Mon Jun 8 15:29:07 2020 From: ehr at qrv.com (E.H. Russell) Date: Mon, 8 Jun 2020 15:29:07 -0400 Subject: [Elecraft] CW rise time setting In-Reply-To: <9ae8e8d61165d1116bb1e93cb441fadd@sonic.net> References: <002501d63dc5$c7c8b700$575a2500$@qrv.com> <9ae8e8d61165d1116bb1e93cb441fadd@sonic.net> Message-ID: <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> I suppose shaping of the curve corners removes harmonics introduced by the abrupt transitions, allowing an accelerated ramp inbetween. But does this really reduce the total rise time to 2.5ms? It seems that the softening process must take some time. Wish I had a K3 here to scope against other radios. Anything published out there? Ed / w2rf From: Alan Bloom Sent: Monday, June 8, 2020 3:15 PM To: E.H. Russell Cc: 'Elecraft Reflector' Subject: Re: [Elecraft] CW rise time setting In the "good old days" key shaping was done simply by adding a capacitor to the key line or equivalent. That results in an exponential rise and/or fall time, which is not optimum, so the time constant had to be set pretty slow to avoid key clicks. Typically 5-10 ms. 10 ms results in "mushy" keying, especially at high CW speeds. Raised-cosine key shaping is close to optimum and is easy to implement with a DSP. It allows faster rise/fall times without key clicks. I assume Elecraft is using something like that. Alan N1AL On 2020-06-08 12:51, E.H. Russell wrote: I'm used to CW rise times in th 4-7ms range. Is this 2.5ms arrived at by a different metric? Is the curve added by sigmoidal shaping somehow excluded from the measurement? Ed / w2rf -----Original Message----- From: elecraft-bounces at mailman.qth.net > On Behalf Of Richard Stutsman Sent: Monday, June 8, 2020 1:31 PM To: David Gilbert > Cc: Elecraft Reflector > Subject: Re: [Elecraft] CW rise time setting Yes, I would regard a 2.5 msec rise time (using appropriate sigmoid shaping) to probably be ideal, in which case I would have no desire to modify or shorten it. I'll bet it will sound even better than a Drake or a Ten-Tec! I hereby withdraw my previous request/opinion. Rick N6IET On Mon, Jun 8, 2020 at 10:27 AM David Gilbert < > ab7echo at gmail.com > wrote: You don't need to generate clicks to have a crisp CW tone. Elecraft uses a pretty much optimally shaped waveform (some version of a cosine function) and if I remember correctly the rise time is only about 2.5 msec, although I could be wrong about that last part. And while you may be careful not to use short rise/fall times when the band is active, in the past there have been folks on the contesting reflector who openly admitted they purposely generate clicks by shortening the rise/fall times to give themselves elbow room. I will always appreciate that Elecraft doesn't give those miscreants the means to pollute the band. 73, Dave AB7E On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman < > rastuts at gmail.com > wrote: I for one would like to have some control over the rise/fall times. You want the cleanest (narrowest) of CW signals when operating on a crowded band or in a contest - unless you're a rare DX station. Most of my operations are 22wpm rag chews on very uncrowded bands. We're often the only discernible signals on an entire CW band. And conditions are often noisy with deep QSB. Why not allow those of us operating in those circumstances to shorten the rise times a bit, which makes it easier to copy in noisy conditions, when any close-in clicks or thumps aren't going to bother anybody? Copying a 'soft' weak CW signal is like trying to read a 'crisp' signal that's an entire S-unit weaker, IMO. My TS-590sg let's me do that, and I love it! Will the K4 sound as good as a Drake T4C? (Just askin'.) Rick N6IET N4ZR wrote: Will the K4 have options for setting CW rise and fall times...? Hi Pete, Probably not. We've always been very careful to ensure our rigs have an exceptional clean, click-free CW signal. (Third-party testing bears this out.) Minimizing the bandwidth requires a very specific rise/fall time and a hand-crafted sigmoidal shaping function in DSP. Colonel Sanders closely guards his fried chick recipe, Mrs. Fields won't reveal what's in her chocolate-chip cookies, and only selected firmware monks--sworn to secrecy--are privy to Elecraft's keying envelope coefficients :) 73, Wayne N6KR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: > mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to > ab7echo at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: > mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to > ehr at qrv.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to alan at elecraft.com From pvandyke1953 at gmail.com Mon Jun 8 15:36:05 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Mon, 8 Jun 2020 15:36:05 -0400 Subject: [Elecraft] 2nd Try --- When is the Elecraft Net?? Message-ID: We have various ones ... stretch and meet others. Propagation means it all changes.. Put a copy up in your shack Paul - KB9AVO The Elecraft Nets ---------------------------------- 20 Meter SSB Elecraft Net Sunday 14.3035 +/- kHz at 1800Z 40 Meter SSB Elecraft Net Sunday 7.280 kHz at 18:45z 20 Meter CW Elecraft Net Sunday 14.050.5 kHz at 2200z: 40 Meter CW Elecraft Net Sunday 7.047.5 kHz at 0000z: 80 Meter SSB Elecraft Net Sunday Night 3.940+/- at 18:45z From n6kr at elecraft.com Mon Jun 8 15:38:52 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 8 Jun 2020 12:38:52 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> References: <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> Message-ID: <90AB5415-7E88-45EC-9C88-946AB0F6DF52@elecraft.com> It?s closer to 4 ms. Wayne N6KR ---- elecraft.com > On Jun 8, 2020, at 12:32 PM, E.H. Russell wrote: > > ?I suppose shaping of the curve corners removes harmonics introduced by the abrupt transitions, allowing an accelerated ramp inbetween. But does this really reduce the total rise time to 2.5ms? It seems that the softening process must take some time. Wish I had a K3 here to scope against other radios. Anything published out there? > > > > Ed / w2rf > > > > > > > > From: Alan Bloom > Sent: Monday, June 8, 2020 3:15 PM > To: E.H. Russell > Cc: 'Elecraft Reflector' > Subject: Re: [Elecraft] CW rise time setting > > > > In the "good old days" key shaping was done simply by adding a capacitor to the key line or equivalent. That results in an exponential rise and/or fall time, which is not optimum, so the time constant had to be set pretty slow to avoid key clicks. Typically 5-10 ms. 10 ms results in "mushy" keying, especially at high CW speeds. > > > > Raised-cosine key shaping is close to optimum and is easy to implement with a DSP. It allows faster rise/fall times without key clicks. I assume Elecraft is using something like that. > > > > Alan N1AL > > > > > > > > > > > > On 2020-06-08 12:51, E.H. Russell wrote: > > I'm used to CW rise times in th 4-7ms range. Is this 2.5ms arrived at by a > different metric? Is the curve added by sigmoidal shaping somehow excluded > from the measurement? > > > > Ed / w2rf > > > > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On > Behalf Of Richard Stutsman > Sent: Monday, June 8, 2020 1:31 PM > To: David Gilbert > > Cc: Elecraft Reflector > > Subject: Re: [Elecraft] CW rise time setting > > > > Yes, I would regard a 2.5 msec rise time (using appropriate sigmoid > > shaping) to probably be ideal, in which case I would have no desire to > modify or shorten it. I'll bet it will sound even better than a Drake or a > Ten-Tec! > > > > I hereby withdraw my previous request/opinion. > > > > Rick N6IET > > > > On Mon, Jun 8, 2020 at 10:27 AM David Gilbert < > > ab7echo at gmail.com > wrote: > > > > > > > You don't need to generate clicks to have a crisp CW tone. Elecraft > > > > > > uses a pretty much optimally shaped waveform (some version of a cosine > > > > > > function) and if I remember correctly the rise time is only about 2.5 > > > > > > msec, although I could be wrong about that last part. And while you > > > > > > may be careful not to use short rise/fall times when the band is > > > > > > active, in the past there have been folks on the contesting reflector > > > > > > who openly admitted they purposely generate clicks by shortening the > > > > > > rise/fall times to give themselves elbow room. I will always > > > > > > appreciate that Elecraft doesn't give those miscreants the means to > > pollute the band. > > > > > > 73, > > > > > > Dave AB7E > > > > > > > On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman < > > > rastuts at gmail.com > wrote: > > > > > > I for one would like to have some control over the rise/fall times. > > > > > > > > > > You want the cleanest (narrowest) of CW signals when operating on a > > > > > > crowded band or in a contest - unless you're a rare DX station. Most > > > > > > of my operations are 22wpm rag chews on very uncrowded bands. We're > > > > > > often the only discernible signals on an entire CW band. And > > > > > > conditions are often noisy with deep QSB. Why not allow those of us > > > > > > operating in those circumstances to shorten the rise times a bit, > > > > > > which makes it easier to copy in noisy conditions, when any close-in > > > > > > clicks or thumps aren't going to bother anybody? Copying a 'soft' > > > > > > weak CW signal is like trying to read a 'crisp' signal that's an > > > > > > entire S-unit weaker, IMO. > > > > > > > > > > My TS-590sg let's me do that, and I love it! > > > > > > > > > > Will the K4 sound as good as a Drake T4C? (Just askin'.) > > > > > > > > > > Rick N6IET > > > > > > > > > > N4ZR wrote: > > > > > > > > > > Will the K4 have options for setting CW rise and fall times...? > > > > > > Hi Pete, > > > > > > Probably not. We've always been very careful to ensure our rigs > > > > > > have an exceptional clean, click-free CW signal. (Third-party > > > > > > testing bears this > > > > > > out.) Minimizing the bandwidth requires a very specific rise/fall > > > > > > time > > > > > > and > > > > > > a hand-crafted sigmoidal shaping function in DSP. > > > > > > Colonel Sanders closely guards his fried chick recipe, Mrs. Fields > > > > > > won't reveal what's in her chocolate-chip cookies, and only > > > > > > selected firmware monks--sworn to secrecy--are privy to Elecraft's > > > > > > keying envelope coefficients :) 73, Wayne N6KR > > > > > > ______________________________________________________________ > > > > > > Elecraft mailing list > > > > > > Home: > > http://mailman.qth.net/mailman/listinfo/elecraft > > > > > Help: > > http://mailman.qth.net/mmfaq.htm > > > > > Post: > mailto:Elecraft at mailman.qth.net > > > > > > > > > > This list hosted by: http://www.qsl.net Please help > > support this > > > > > email list: > > http://www.qsl.net/donate.html Message delivered to > > > > > > ab7echo at gmail.com > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: > mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: > http://www.qsl.net/donate.html Message delivered to > > ehr at qrv.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to alan at elecraft.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From phvidston at gmail.com Mon Jun 8 15:40:02 2020 From: phvidston at gmail.com (Paul Hvidston) Date: Mon, 8 Jun 2020 13:40:02 -0600 Subject: [Elecraft] Alternative AMP to KX3 since Elecraft has temporarily stopped making AMPS In-Reply-To: References: <26c201d63470$9e6bba50$db432ef0$@telusplanet.net> <7e2fdb41-7e68-6143-091e-f9f2d44cb596@embarqmail.com> Message-ID: <64333fda-ef6b-c5f2-f386-64a0526affa1@gmail.com> Agree 100%, Rich. I'm 99% CW, and most amplifiers fall short for CW operation. After looking long and hard for a 100W companion for my KX3, the KPXA100 is best thing since sliced bread! If CW is your mode and QSK (or even semi break-in) is desirable, there is no other choice. If you want seamless integration with your KX3 (or KX2), the KPXA100 is your best choice. I contacted Elecraft about leadtimes, and Madelyn Gomez (Sales) says its about 7 to 10 business days. No complaints there, so Elecraft has my order. Will report back when my KXPA100-AT-K/KXUSB/KXPACBL arrives. 72/73 de Paul/N6MGN On 5/27/2020 5:51 PM, rich hurd WC3T wrote: > And not to appear to be too much of a lickspittle, but IMHO the only thing > to compare to a KXPA100 is... another KXPA100. > > LOL > From k2qmf at juno.com Mon Jun 8 16:02:25 2020 From: k2qmf at juno.com (Salvatore Ted K2QMF) Date: Mon, 08 Jun 2020 16:02:25 -0400 Subject: [Elecraft] Help with KPA1500 P/S Message-ID: Hello All, How do you remove the PowerPoll P/S connector from the back of the KPA1500?? Any help much appreciated! I don't want to force them out! Thanks, Sal? K2QMF From jim at jtmiller.com Mon Jun 8 16:23:16 2020 From: jim at jtmiller.com (Jim Miller) Date: Mon, 8 Jun 2020 16:23:16 -0400 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? Message-ID: Has anyone run two instances of WSJT on a single K3s with the SubRX so as to be able to monitor both 50.323 and 50.313? Of course I'll only be able to transmit on the instance that has the Main RX but it would be handy to be able to see both. Thanks Jim ab3cv From PKaletsch at kaletsch-gmbh.de Mon Jun 8 16:47:08 2020 From: PKaletsch at kaletsch-gmbh.de (Peter Kaletsch) Date: Mon, 8 Jun 2020 20:47:08 +0000 Subject: [Elecraft] K3 working on motorboats - possible Message-ID: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> Hello fellows; You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? I am very grateful for every tip and every help - also to pkaletsch at kaletsch-gmbh.de Thanks in advance Peter - DL1MDZ ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From richgilley123 at gmail.com Mon Jun 8 16:49:41 2020 From: richgilley123 at gmail.com (richard gilley) Date: Mon, 8 Jun 2020 16:49:41 -0400 Subject: [Elecraft] KXPA100 offered for sale Message-ID: Hi, I am listing my KXPA100 with ATU # 2424, purchased September 2018 as kit. Includes fused power cable, KXUSB cable and manual. The unit is in excellent condition, used in the shack only, photo upon request. Asking $950.00 includes shipping, insurance, via USPS, CONUS. Bank check preferred, personal check OK will ship when cleared. Thank you for your interest, please contact me at "richgilley123 at gmail.com ?. R Gilley AD1G From k7im at icloud.com Mon Jun 8 17:47:40 2020 From: k7im at icloud.com (M. Bottles) Date: Mon, 8 Jun 2020 14:47:40 -0700 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> Message-ID: I am also very interested in answers to this question, please include me with suggestions if you email direct outside of the reflector. I have a 15.25 meter motorboat on salt water )Puget Sound.) Thank you, Kim - K7IM k7im at icloud.com > On Jun 8, 2020, at 1:47 PM, Peter Kaletsch wrote: > > Hello fellows; > > You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > > For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > > A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > > So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > > But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > > I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > > I am very grateful for every tip and every help - also to pkaletsch at kaletsch-gmbh.de > > Thanks in advance > > Peter - DL1MDZ > > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | > Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7im at icloud.com From W2xj at w2xj.net Mon Jun 8 18:55:12 2020 From: W2xj at w2xj.net (W2xj) Date: Mon, 8 Jun 2020 18:55:12 -0400 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> Message-ID: <82979E1B-66E0-4AA9-9C99-7439C5A7B15A@w2xj.net> try and AX1 with a tripod mount mounted to the boat and then one or two radials over the hull and into the water. Another member expressed interest in operating over salt water when additional ground is much less important. Sent from my iPad > On Jun 8, 2020, at 4:48 PM, Peter Kaletsch wrote: > > ?Hello fellows; > > You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > > For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > > A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > > So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > > But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > > I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > > I am very grateful for every tip and every help - also to pkaletsch at kaletsch-gmbh.de > > Thanks in advance > > Peter - DL1MDZ > > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | > Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net From PKaletsch at kaletsch-gmbh.de Mon Jun 8 19:14:00 2020 From: PKaletsch at kaletsch-gmbh.de (Peter Kaletsch) Date: Mon, 8 Jun 2020 23:14:00 +0000 Subject: [Elecraft] WG: K3 working on motorboats - possible In-Reply-To: <82979E1B-66E0-4AA9-9C99-7439C5A7B15A@w2xj.net> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> <82979E1B-66E0-4AA9-9C99-7439C5A7B15A@w2xj.net> Message-ID: <9CD18F7BAB72E447987F465BD087D603DBE30599@SRV-SBS1.kaletsch.local> Hi; Thank you very much for the feedback and suggestions. The suggested setup is surly good for testing, but I would prefer a permanent installation more and I am very sure, my wife also does Or should I say, I am sure, it's a must for here :-). And also the AX-1 limits the output to 25 watts... Best regards 73, Peter -----Urspr?ngliche Nachricht----- Von: W2xj [mailto:W2xj at w2xj.net] Gesendet: Dienstag, 9. Juni 2020 00:55 An: Peter Kaletsch Cc: elecraft at mailman.qth.net Betreff: Re: [Elecraft] K3 working on motorboats - possible try and AX1 with a tripod mount mounted to the boat and then one or two radials over the hull and into the water. Another member expressed interest in operating over salt water when additional ground is much less important. Sent from my iPad > On Jun 8, 2020, at 4:48 PM, Peter Kaletsch wrote: > > ?Hello fellows; > > You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > > For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > > A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > > So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > > But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > > I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > > I am very grateful for every tip and every help - also to > pkaletsch at kaletsch-gmbh.de > > Thanks in advance > > Peter - DL1MDZ > > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: > +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > w2xj at w2xj.net ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From PKaletsch at kaletsch-gmbh.de Mon Jun 8 19:21:40 2020 From: PKaletsch at kaletsch-gmbh.de (Peter Kaletsch) Date: Mon, 8 Jun 2020 23:21:40 +0000 Subject: [Elecraft] tuner In-Reply-To: References: Message-ID: <9CD18F7BAB72E447987F465BD087D603DBE306CD@SRV-SBS1.kaletsch.local> Hi Bob; Thanks a lot! An automatic tuner also was my first idea and I hope, I'll catch up here still some motorboat experience form usage of external tuners for this purpose. 73, Peter -----Urspr?ngliche Nachricht----- Von: ROBT E WOODWARD JR [mailto:bobwoodward at mac.com] Gesendet: Dienstag, 9. Juni 2020 01:04 An: Peter Kaletsch Betreff: tuner Hi Peter Look into a SGC SG 237 tuner. The AX1 will not handle the power from the K3. I have used the tuner on land with random length wires for driven and ground. Good Luck 73 Bob, N6PGQ ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From kl7cw at mtaonline.net Mon Jun 8 19:33:47 2020 From: kl7cw at mtaonline.net (Frederick Dwight) Date: Mon, 8 Jun 2020 15:33:47 -0800 Subject: [Elecraft] zero-beating a KX1 Message-ID: <20200608233440227@smtp.email-protect.gosecure.net> If you do a google search on KX1 zero beat indicator or cw zero beat indicator you will see several circuits demonstrated. Some like the one which uses the LM567 (non SMT) part and had a white LED seemed to be good, much less than 100 Hz BW and had the schematic, but some others seemed to be much too broad, perhaps hundreds of Hz wide. My circuit needed quite a bit of audio drive, so rigged up a small 500-500 CT audio transformer and used the primary as a autotransformer to double the audio voltage to the circuit which did not change the earphone volume but enabled the detector to operate without opening up the audio gain too much on any of my rigs. Good Luck Rick KL7CW Sent from Mail for Windows 10 From ch at murgatroid.com Mon Jun 8 19:36:25 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Mon, 8 Jun 2020 16:36:25 -0700 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: References: Message-ID: The sub rx audio does not get plumbed over USB, AFAIK, like it does for the main rx.. (It would be sweet if it did.) So it would seem that you'd have to digitize it outboard. Also you'd have to make sure the second instance doesn't send any CAT commands. 73 de AI6KG On Mon, Jun 8, 2020 at 1:24 PM Jim Miller wrote: > Has anyone run two instances of WSJT on a single K3s with the SubRX so as > to be able to monitor both 50.323 and 50.313? > > Of course I'll only be able to transmit on the instance that has the Main > RX but it would be handy to be able to see both. > > Thanks > > Jim ab3cv > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ch at murgatroid.com > From rocketnj at gmail.com Mon Jun 8 19:44:49 2020 From: rocketnj at gmail.com (rocketnj at gmail.com) Date: Mon, 8 Jun 2020 19:44:49 -0400 Subject: [Elecraft] Help with KPA1500 P/S In-Reply-To: References: Message-ID: <037e01d63dee$cc944c30$65bce490$@gmail.com> Are you talking about removing the cable from the amp? It just pulls out. There is some tension on the contacts so it will require a little force. Just pull straight out. If you are talking about the chassis mounted Power Poles, there are screws on the inside that hold a bracket and wedge which keep them secure to the chassis. Dave wo2x -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Salvatore Ted K2QMF Sent: Monday, June 8, 2020 4:02 PM To: elecraft at mailman.qth.net Subject: [Elecraft] Help with KPA1500 P/S Hello All, How do you remove the PowerPoll P/S connector from the back of the KPA1500?? Any help much appreciated! I don't want to force them out! Thanks, Sal K2QMF ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to rocketnj at gmail.com From ja1nlx0205 at my.email.ne.jp Mon Jun 8 20:00:33 2020 From: ja1nlx0205 at my.email.ne.jp (Yoshida Akira) Date: Tue, 9 Jun 2020 09:00:33 +0900 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX Message-ID: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> Hi all I have never seen this for many years, however I recently noticed twice when transmitting FT8 with 100W. No alarm and error message. When I simply push POWER button in front panel then it turns ON again. PA temp, DC voltage and DC current looks good. I do not believe RFI cause this problem. Any idea ? -- 73 de aki JA1NLX From lists at subich.com Mon Jun 8 20:16:10 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Mon, 8 Jun 2020 20:16:10 -0400 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: References: Message-ID: Since WSJTX does not understand the concept of a second receiver there is no way to provide CAT control for the Sub RX or transmit on VFO B as if it were a separate rig. However, you can start a second instance of WSJTX to receive on the Sub RX - start WSJTX with the --rig command line argument (see the WSJTX Users Manual sec. 16.5). You will probably also want to specify a special configuration for the Sub RX that sets the RX Soundcard to "USB Audio CODEC" so it is listening to the correct receiver. Specifying a start-up configuration is done with the --config command line switch (WSJTX Users Guide sec 10.1.3) As the developers of WSJTX are fond of saying - "Study the On-Line Users Guide!" 73, ... Joe, W4TV On 2020-06-08 4:23 PM, Jim Miller wrote: > Has anyone run two instances of WSJT on a single K3s with the SubRX so as > to be able to monitor both 50.323 and 50.313? > > Of course I'll only be able to transmit on the instance that has the Main > RX but it would be handy to be able to see both. > > Thanks > > Jim ab3cv From jim at audiosystemsgroup.com Mon Jun 8 20:17:31 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 8 Jun 2020 17:17:31 -0700 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> Message-ID: <81df8053-139f-6062-c4c7-570a8fcdb615@audiosystemsgroup.com> On 6/8/2020 1:47 PM, Peter Kaletsch wrote: > But how do I get a reasonably effective earth? You don't need an "earth," you need a counterpoise. VE0JS, who has sailed around the world four times on a 37-ft sail boat, loads the backstay against a sintered bronze plate in the water. I suggest that you do something similar for the vertical, and one or more wires strong along the boat as a counterpoise. She has a remote tuner at the base; the feedline in your boat will probably be short enough that you can use a tuner built into the radio. A bunch of us in North America have worked her from the south Indian Ocean on 40M. She's running an ICOM marine radio, SSB only, with no voice processing. Check out her qrz page. 73, Jim K9YC From wb6rse1 at mac.com Mon Jun 8 20:22:21 2020 From: wb6rse1 at mac.com (wb6rse1 at mac.com) Date: Mon, 8 Jun 2020 17:22:21 -0700 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: References: Message-ID: <335CF249-55C1-4399-AE13-64BFB59AFC68@mac.com> If you have a P3, load 50.313 and 50.323 into memory to be able to toggle between A/B. If you see activity on the P3 on the other frequency, toggle. 73 - Steve WB6RSE On Jun 8, 2020, at 1:23 PM, Jim Miller wrote: Has anyone run two instances of WSJT on a single K3s with the SubRX so as to be able to monitor both 50.323 and 50.313? Of course I'll only be able to transmit on the instance that has the Main RX but it would be handy to be able to see both. Thanks Jim ab3cv ______________________________________________________________ From lists at subich.com Mon Jun 8 20:31:14 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Mon, 8 Jun 2020 20:31:14 -0400 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: References: Message-ID: <7624eb58-f76f-5c5b-2084-115500fff609@subich.com> Giving this "problem" some additional thought ... WSJTX can not select "SPLIT" to transmit on VFO B in order to automatically work a station heard on the Sub RX. However, here is a starting point for the rest of the configuration ... For the Main RX (VFO A): Set Rig to Elecraft K3/K3S Set Mode to Data/PKT (DATA_A) Set Split Operation to either None or Fake It (Fake it probably works best if you have a wide filter) Use an interface that allows RTS or DTR on a dedicated serial port for PTT Audio (RX) USB Audio CODEC Audio (TX) USB Audio CODEC For the Sub RX (VFO B) Set rig to *NONE* Set Mode to *NONE* Set Split Operation to *NONE* Use a *Separate serial port* for PTT (DTR or RTS) Audio (RX) USB Audio CODEC Audio (TX) USB Audio CODEC Notes: Sub RX receive bandwidth will probably be limited to 200-2600 Hz (depending on the widest filter installed in the Sub Rx) Since the VFO B transmit will be "fixed", TX offsets will be limited to 300-2600 Hz. Try to stay above 1,000 Hz. You will need to manually activate "Split" (TX on VFO B) to call a station copied on the second instance of WSJTX. *DISABLE* "Auto Seq" on *BOTH* instances. You do not want one instance to "take off" on a new QSO while working someone else. 73, ... Joe, W4TV On 2020-06-08 8:10 PM, Joe Subich, W4TV wrote: > > Since WSJTX does not understand the concept of a second receiver there > is no way to provide CAT control for the Sub RX or transmit on VFO B > as if it were a separate rig. > > However, you can start a second instance of WSJTX to receive on the > Sub RX - start WSJTX with the --rig command line argument (see the > WSJTX Users Manual sec. 16.5).? You will probably also want to > specify a special configuration for the Sub RX that sets the RX > Soundcard to "USB Audio CODEC" so it is listening to the > correct receiver.? Specifying a start-up configuration is done with > the --config command line switch (WSJTX Users Guide > sec 10.1.3) > > As the developers of WSJTX are fond of saying - "Study the On-Line > Users Guide!" > > 73, > > ?? ... Joe, W4TV > > > On 2020-06-08 4:23 PM, Jim Miller wrote: >> Has anyone run two instances of WSJT on a single K3s with the SubRX so as >> to be able to monitor both 50.323 and 50.313? >> >> Of course I'll only be able to transmit on the instance that has the Main >> RX but it would be handy to be able to see both. >> >> Thanks >> >> Jim ab3cv > From pvandyke1953 at gmail.com Mon Jun 8 20:31:40 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Mon, 8 Jun 2020 20:31:40 -0400 Subject: [Elecraft] OK ... I screwed up.. Here is the real Net List Message-ID: We have various ones ... stretch and meet others. Propagation means it all changes.. Put a copy up in your shack Paul - KB9AVO The Elecraft Nets ---------------------------------- 20 Meter SSB Elecraft Net Sunday 14.3035 +/- kHz at 1800Z 40 Meter SSB Elecraft Net Sunday 7.280 kHz at 18:45z 20 Meter CW Elecraft Net Sunday 14.050.5 kHz at 2200z: 40 Meter CW Elecraft Net Sunday 7.047.5 kHz at 0000z: 80 Meter SSB Elecraft Net Sunday Night 3.940+/- at 01:00z From barrylazar2 at gmail.com Mon Jun 8 20:39:13 2020 From: barrylazar2 at gmail.com (Barry) Date: Tue, 09 Jun 2020 00:39:13 +0000 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@srv-sbs1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@srv-sbs1.kaletsch.local> Message-ID: Peter, I have used HF radios marine mobile here on Chesapeake Bay near Annapolis. The water here is brackish and not real salt water. I had a sail boat and loaded the backstay against a ground in the water that represented more than the 100 square feed that the Coast Guard requires. What I discovered is that non-saltwater ground are not great. I had a lot of RF all over the place. I finally put up an inverted V held up by my main halyard; this worked well and overcame the RF on everything issue. In your case, I would suggest that you not try a Tarheel or any antenna that requires a good ground as fresh water is a terrible ground. The boaters that do use marine HF mostly use a 23 foot fiberglass antenna worked against ground and a remote antenna tuner, but they are really salty water. This won't work for you. Therefore, what I suggest is that you put up one of the good expandable, push up masts, say ~25 feet and hang a 40 meter inverted V on it; it should just fit on a 13 foot boat as long as the legs aren't straight. A 4:1 CURRENT balun will allow all band operations above 40 and the Elecraft tuner should work great on this system. I suspect you have a flybridge on a boat that large, and if so, mount the pushup mast on the deck section just out side the bridge. The added height will buy you a small amount in lowering the angle of arrival for this antenna a bit; every little bit helps. Feed the system with coax like Belden 9913 or Times Wire LM400. The SWR will be high on most of the bands but should be in the Elecraft range, more importantly, is containing the losses associated with high SWR. 73, Barry K3NDM ------ Original Message ------ From: "Peter Kaletsch" To: "elecraft at mailman.qth.net" Sent: 6/8/2020 4:47:08 PM Subject: [Elecraft] K3 working on motorboats - possible >Hello fellows; > >You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > >For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > >A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > >So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > >But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > >I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > >I am very grateful for every tip and every help - also to pkaletsch at kaletsch-gmbh.de > >Thanks in advance > >Peter - DL1MDZ > > >________________________________ >Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | >Hinweis / reference: >Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to barrylazar2 at gmail.com -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From kevinr at coho.net Mon Jun 8 20:47:56 2020 From: kevinr at coho.net (kevinr) Date: Mon, 8 Jun 2020 17:47:56 -0700 Subject: [Elecraft] Finding stuff on the 'net Message-ID: <228c963c-5ca5-f800-0cc9-a1edeb70c341@coho.net> I was looking for something else when I ran into this article.? I got close to the end when I thought, "I recognize this guy."? A few lines later my suspicions were confirmed :)? I'm sure he won't mind being re-posted here. ? 73,? Kevin.? KD5ONS ================================================ I find that CW has many practical and engaging aspects that I just don?t get with computer-mediated modes like FT8. You?d think I?d be burned out on CW by now, over 45 years since I was first licensed, but no, I?m still doin? it :) Yes, FT8 (etc.) is a no-brainer when, despite poor conditions, your goal is to log as many contacts as possible with as many states or countries as possible. It?s so streamlined and efficient that the whole process is readily automated. (If you haven?t read enough opinions on that, see "The mother of all FT8 threads? on QRZ.com , for example.) But back to CW. Here?s why it works for me. YMMV. CW feels personal and visceral, like driving a sports car rather than taking a cab. As with a sports car, there are risks. You can get clobbered by larger vehicles (QRM). Witness road range (?UP 2!?). Fall into a pothole (QSB). Be forced to drive through rain or snow (QRN). With CW, like other forms of human conversation, you can affect your own style. Make mistakes. Joke about it. CW is a skill that bonds operators together across generations and nations. A language, more like pidgin than anything else, with abbreviations and historical constructs and imperialist oddities. A curious club anyone can join. (At age 60 and able to copy 50 WPM on a good day, I may qualify as a Nerd Mason of some modest order, worthless in any other domain but of value in a contest.) With very simple equipment that anyone can build, such as a high-power single-transistor oscillator, you can transmit a CW signal. I had very little experience with electronics when I was 14 and built an oscillator that put out maybe 100 mW. Just twisted the leads of all those parts together and keyed the collector supply--a 9-volt battery. With this simple circuit on my desk, coupled to one guy wire of our TV antenna mast, I worked a station 150 miles away and was instantly hooked on building things. And on QRP. I?m sure the signal was key-clicky and had lots of harmonics. I?ve spent a lifetime making such things work better, but this is where it started. Going even further down the techno food chain, you can ?send? CW by whistling, flashing a lamp, tapping on someone?s leg under a table in civics class, or pounding a wrench on the inverted hull of an upside-down U.S. war vessel, as happened at Pearl Harbor. Last Saturday at an engineering club my son belongs to, a 9-year-old demonstrated an Arduino Uno flashing HELLO WORLD in Morse on an LED. The other kids were impressed, including my son, who promptly wrote a version that sends three independent Morse streams on three LEDs. A mini-pileup. His first program. Finally, to do CW you don?t always need a computer, keyboard, mouse, monitor, or software. Such things are invaluable in our daily lives, but for me, shutting down everything but the radio is the high point of my day. The small display glows like a mystic portal into my personal oyster, the RF spectrum. Unless I crank up the power, there?s no fan noise. Tuning the knob slowly from the bottom end of the band segment to the top is a bit like fishing my favorite stream, Taylor Creek, which connects Fallen Leaf Lake to Lake Tahoe. Drag the line across the green, sunlit pool. See what hits. Big trout? DX. Small trout? Hey, it?s still a fish, and a QSO across town is still a QSO. Admire it, then throw it back in. (BTW: You now know why the Elecraft K3, K3S, KX2, and KX3 all have built-in RTTY and PSK data modes that allow transmit via the keyer paddle and receive on the rig?s display. We decided to make these data modes conversational...like CW.) Back to 40 meters.... 73, Wayne N6KR From W2xj at w2xj.net Mon Jun 8 20:56:02 2020 From: W2xj at w2xj.net (W2xj) Date: Mon, 8 Jun 2020 20:56:02 -0400 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE30599@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE30599@SRV-SBS1.kaletsch.local> Message-ID: <3D46EDAF-A54D-40D6-9014-7E2CB39DACA6@w2xj.net> Sorry, I misread the original post and thought it was a KX33 and not a K33. Sent from my iPad > On Jun 8, 2020, at 7:14 PM, Peter Kaletsch wrote: > > ?Hi; > > Thank you very much for the feedback and suggestions. > > The suggested setup is surly good for testing, but I would prefer a permanent installation more and I am very sure, my wife also does Or should I say, I am sure, it's a must for here :-). And also the AX-1 limits the output to 25 watts... > > Best regards > > 73, Peter > > -----Urspr?ngliche Nachricht----- > Von: W2xj [mailto:W2xj at w2xj.net] > Gesendet: Dienstag, 9. Juni 2020 00:55 > An: Peter Kaletsch > Cc: elecraft at mailman.qth.net > Betreff: Re: [Elecraft] K3 working on motorboats - possible > > try and AX1 with a tripod mount mounted to the boat and then one or two radials over the hull and into the water. Another member expressed interest in operating over salt water when additional ground is much less important. > > Sent from my iPad > >> On Jun 8, 2020, at 4:48 PM, Peter Kaletsch wrote: >> >> ?Hello fellows; >> >> You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. >> >> For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. >> >> A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. >> >> So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? >> >> But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. >> >> I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? >> >> I am very grateful for every tip and every help - also to >> pkaletsch at kaletsch-gmbh.de >> >> Thanks in advance >> >> Peter - DL1MDZ >> >> >> ________________________________ >> Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: >> +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: >> Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> w2xj at w2xj.net > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | > Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From n6kr at elecraft.com Mon Jun 8 21:02:07 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 8 Jun 2020 18:02:07 -0700 Subject: [Elecraft] Finding stuff on the 'net In-Reply-To: <228c963c-5ca5-f800-0cc9-a1edeb70c341@coho.net> References: <228c963c-5ca5-f800-0cc9-a1edeb70c341@coho.net> Message-ID: <9580C20D-7FEF-4802-823B-285C8B9C36E1@elecraft.com> Guilty as charged :) Wayne N6KR > On Jun 8, 2020, at 5:47 PM, kevinr wrote: > > I was looking for something else when I ran into this article. I got close to the end when I thought, "I recognize this guy." A few lines later my suspicions were confirmed :) I'm sure he won't mind being re-posted here. > > 73, Kevin. KD5ONS > > ================================================ > > > I find that CW has many practical and engaging aspects that I just don?t get with computer-mediated modes like FT8. You?d think I?d be burned out on CW by now, over 45 years since I was first licensed, but no, I?m still doin? it :) > > Yes, FT8 (etc.) is a no-brainer when, despite poor conditions, your goal is to log as many contacts as possible with as many states or countries as possible. It?s so streamlined and efficient that the whole process is readily automated. (If you haven?t read enough opinions on that, see "The mother of all FT8 threads? on QRZ.com , for example.) > > But back to CW. Here?s why it works for me. YMMV. > > CW feels personal and visceral, like driving a sports car rather than taking a cab. As with a sports car, there are risks. You can get clobbered by larger vehicles (QRM). Witness road range (?UP 2!?). Fall into a pothole (QSB). Be forced to drive through rain or snow (QRN). > > With CW, like other forms of human conversation, you can affect your own style. Make mistakes. Joke about it. > > CW is a skill that bonds operators together across generations and nations. A language, more like pidgin than anything else, with abbreviations and historical constructs and imperialist oddities. A curious club anyone can join. (At age 60 and able to copy 50 WPM on a good day, I may qualify as a Nerd Mason of some modest order, worthless in any other domain but of value in a contest.) > > With very simple equipment that anyone can build, such as a high-power single-transistor oscillator, you can transmit a CW signal. I had very little experience with electronics when I was 14 and built an oscillator that put out maybe 100 mW. Just twisted the leads of all those parts together and keyed the collector supply--a 9-volt battery. With this simple circuit on my desk, coupled to one guy wire of our TV antenna mast, I worked a station 150 miles away and was instantly hooked on building things. And on QRP. I?m sure the signal was key-clicky and had lots of harmonics. I?ve spent a lifetime making such things work better, but this is where it started. > > Going even further down the techno food chain, you can ?send? CW by whistling, flashing a lamp, tapping on someone?s leg under a table in civics class, or pounding a wrench on the inverted hull of an upside-down U.S. war vessel, as happened at Pearl Harbor. Last Saturday at an engineering club my son belongs to, a 9-year-old demonstrated an Arduino Uno flashing HELLO WORLD in Morse on an LED. The other kids were impressed, including my son, who promptly wrote a version that sends three independent Morse streams on three LEDs. A mini-pileup. His first program. > > Finally, to do CW you don?t always need a computer, keyboard, mouse, monitor, or software. Such things are invaluable in our daily lives, but for me, shutting down everything but the radio is the high point of my day. The small display glows like a mystic portal into my personal oyster, the RF spectrum. Unless I crank up the power, there?s no fan noise. Tuning the knob slowly from the bottom end of the band segment to the top is a bit like fishing my favorite stream, Taylor Creek, which connects Fallen Leaf Lake to Lake Tahoe. Drag the line across the green, sunlit pool. See what hits. Big trout? DX. Small trout? Hey, it?s still a fish, and a QSO across town is still a QSO. Admire it, then throw it back in. > > (BTW: You now know why the Elecraft K3, K3S, KX2, and KX3 all have built-in RTTY and PSK data modes that allow transmit via the keyer paddle and receive on the rig?s display. We decided to make these data modes conversational...like CW.) > > Back to 40 meters.... > > 73, > > Wayne > N6KR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From WOYB10051 at outlook.com Mon Jun 8 21:09:51 2020 From: WOYB10051 at outlook.com (John Langdon) Date: Tue, 9 Jun 2020 01:09:51 +0000 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <81df8053-139f-6062-c4c7-570a8fcdb615@audiosystemsgroup.com> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> <81df8053-139f-6062-c4c7-570a8fcdb615@audiosystemsgroup.com> Message-ID: The shrimp boats often used a 108" stainless steel CB whip on a spring, and a large copper plate on the outside of the hull under water. They got out very well on 11M. With modern rigs and built in tuners, you could probably do well on 10, 12, 15 and 17 M too. 73 John N5CQ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Jim Brown Sent: Monday, June 8, 2020 7:18 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] K3 working on motorboats - possible On 6/8/2020 1:47 PM, Peter Kaletsch wrote: > But how do I get a reasonably effective earth? You don't need an "earth," you need a counterpoise. VE0JS, who has sailed around the world four times on a 37-ft sail boat, loads the backstay against a sintered bronze plate in the water. I suggest that you do something similar for the vertical, and one or more wires strong along the boat as a counterpoise. She has a remote tuner at the base; the feedline in your boat will probably be short enough that you can use a tuner built into the radio. A bunch of us in North America have worked her from the south Indian Ocean on 40M. She's running an ICOM marine radio, SSB only, with no voice processing. Check out her qrz page. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to woyb10051 at outlook.com From kurtt at pinrod.com Mon Jun 8 21:16:21 2020 From: kurtt at pinrod.com (Kurt Pawlikowski) Date: Mon, 8 Jun 2020 20:16:21 -0500 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> Message-ID: Peter, ??? In general, any vertical works lots better with more radials. As fresh water is a fairly poor conductor, the more the merrier! Unfortunately, because most boats are wooden/fiberglass, what you can add helps. I don't know if they have to be 1/4 wavelength (I've read yes and some say at least 0.20 wavelength). For HF, this would be some serious lengths for most boats! I expect you'd have to load them similar to the vertical element, but I haven't read anything regarding loading radials: It's just a guess. I suppose one could attempt to replicate, to some extent, a solid ground plane with foil or some other conductor (maybe chicken wire?). It would seem a lot of work (and probably is!). If you're insistent on a vertical, it's a narrow field of variability. Some of the portable antenna's can make loaded dipoles or verticals, which would operate fairly well without a ground plane. Another option might be a magnetic loop (which doesn't care much about "ground" per se. It is affected by near-by conductors, tunes very narrowly, and is big (compared to a mobile vertical). So, whatever you choose, it's all some sort of compromise. ??? kurtt WB9FMC On 6/8/2020 3:47 PM, Peter Kaletsch wrote: > Hello fellows; > > You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > > For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > > A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > > So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > > But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > > I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > > I am very grateful for every tip and every help - also to pkaletsch at kaletsch-gmbh.de > > Thanks in advance > > Peter - DL1MDZ > > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | > Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kurtt at pinrod.com From jh3sif at sumaq.jp Mon Jun 8 21:27:17 2020 From: jh3sif at sumaq.jp (Keith Onishi) Date: Tue, 9 Jun 2020 10:27:17 +0900 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> References: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> Message-ID: LPA temperature may be over its upper limit during transmitting FT8. If so, I would suggest to check and tighten the 3 screws securing 3 LPA transistors to the rear bottom cover. 73 de JH3SIF, Keith > 2020/06/09 9:00?Yoshida Akira ????: > > Hi all > > I have never seen this for many years, however I recently noticed twice > when transmitting FT8 with 100W. No alarm and error message. > When I simply push POWER button in front panel then it turns ON again. > > PA temp, DC voltage and DC current looks good. I do not believe RFI > cause this problem. > > Any idea ? > > -- > 73 de aki > JA1NLX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jh3sif at sumaq.jp From barrylazar2 at gmail.com Mon Jun 8 21:26:48 2020 From: barrylazar2 at gmail.com (Barry) Date: Tue, 09 Jun 2020 01:26:48 +0000 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@srv-sbs1.kaletsch.local> Message-ID: Kim, You're in better shape than Peter. You are operating in real salt water. You could easily put up a 23' marine HF antenna or use a Tarheel or almost anything else and you could use a Dynaplate ground, available at West Marine or Defenders. I used a backstay against a Dynaplate on Chesapeake Bay and in the Bahamas. Using sea water vice brackish water made a big difference. The issue is you need an electrical 1/2 wave. The various whip type antenna are only 1/2 the needed antena. Thw orher half is represented in the ground. That is why have a good ground is so important or use a ground independent antenna like a dipole variant. See the note I just wrote to Peter that should be here on the reflector. 73, Barry K3NDM ------ Original Message ------ From: "M. Bottles via Elecraft" To: "Peter Kaletsch" Cc: "elecraft at mailman.qth.net" Sent: 6/8/2020 5:47:40 PM Subject: Re: [Elecraft] K3 working on motorboats - possible >I am also very interested in answers to this question, please include me with suggestions if you email direct outside of the reflector. I have a 15.25 meter motorboat on salt water )Puget Sound.) Thank you, Kim - K7IM > >k7im at icloud.com > >> On Jun 8, 2020, at 1:47 PM, Peter Kaletsch wrote: >> >> Hello fellows; >> >> You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. >> >> For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. >> >> A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. >> >> So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? >> >> But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. >> >> I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? >> >> I am very grateful for every tip and every help - also to pkaletsch at kaletsch-gmbh.de >> >> Thanks in advance >> >> Peter - DL1MDZ >> >> >> ________________________________ >> Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | >> Hinweis / reference: >> Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k7im at icloud.com > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to barrylazar2 at gmail.com -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From barrylazar2 at gmail.com Mon Jun 8 21:39:53 2020 From: barrylazar2 at gmail.com (Barry) Date: Tue, 09 Jun 2020 01:39:53 +0000 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@srv-sbs1.kaletsch.local> <81df8053-139f-6062-c4c7-570a8fcdb615@audiosystemsgroup.com> Message-ID: Yes. This will work, but Peter is in fresh water which is not a good ground. That means the only ground he will have is the copper plate. The sintered metal plate, a Dynaplate, works nicely as the Coast Guard requirement of 100 square feet, but only in saltwater. I know as I've tried a few schemes in both brackish and saltwater. 73, Barry K3NDM ------ Original Message ------ From: "John Langdon" To: "jim at audiosystemsgroup.com" ; "elecraft at mailman.qth.net" Sent: 6/8/2020 9:09:51 PM Subject: Re: [Elecraft] K3 working on motorboats - possible >The shrimp boats often used a 108" stainless steel CB whip on a spring, and a large copper plate on the outside of the hull under water. They got out very well on 11M. With modern rigs and built in tuners, you could probably do well on 10, 12, 15 and 17 M too. > >73 John N5CQ > > >-----Original Message----- >From: elecraft-bounces at mailman.qth.net On Behalf Of Jim Brown >Sent: Monday, June 8, 2020 7:18 PM >To: elecraft at mailman.qth.net >Subject: Re: [Elecraft] K3 working on motorboats - possible > >On 6/8/2020 1:47 PM, Peter Kaletsch wrote: >> But how do I get a reasonably effective earth? >You don't need an "earth," you need a counterpoise. > >VE0JS, who has sailed around the world four times on a 37-ft sail boat, loads the backstay against a sintered bronze plate in the water. I suggest that you do something similar for the vertical, and one or more wires strong along the boat as a counterpoise. She has a remote tuner at the base; the feedline in your boat will probably be short enough that you can use a tuner built into the radio. > >A bunch of us in North America have worked her from the south Indian Ocean on 40M. She's running an ICOM marine radio, SSB only, with no voice processing. Check out her qrz page. > >73, Jim K9YC >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html Message delivered to woyb10051 at outlook.com >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to barrylazar2 at gmail.com -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From ja1nlx0205 at my.email.ne.jp Mon Jun 8 21:48:17 2020 From: ja1nlx0205 at my.email.ne.jp (Yoshida Akira) Date: Tue, 9 Jun 2020 10:48:17 +0900 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: References: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> Message-ID: On 2020/06/09 10:27, Keith Onishi wrote: > LPA temperature may be over its upper limit during transmitting FT8. > If so, I would suggest to check and tighten the 3 screws securing 3 LPA transistors to the rear bottom cover. > > 73 de JH3SIF, Keith > >> 2020/06/09 9:00?Yoshida Akira ????: >> >> Hi all >> >> I have never seen this for many years, however I recently noticed twice >> when transmitting FT8 with 100W. No alarm and error message. >> When I simply push POWER button in front panel then it turns ON again. >> >> PA temp, DC voltage and DC current looks good. I do not believe RFI >> cause this problem. >> >> Any idea ? >> >> -- >> 73 de aki >> JA1NLX >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jh3sif at sumaq.jp > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ja1nlx0205 at my.email.ne.jp -- 73 de aki JA1NLX From infomet at embarqmail.com Mon Jun 8 21:51:27 2020 From: infomet at embarqmail.com (Wilson Lamb) Date: Mon, 8 Jun 2020 21:51:27 -0400 (EDT) Subject: [Elecraft] Motorboat In-Reply-To: References: Message-ID: <1428956924.4297032.1591667487146.JavaMail.zimbra@embarqmail.com> Connect ground to engine/rudder. Use tallest possible mast, with capacitive hat if shorter than 1/4 wavelength. Tune antenna to resonance and match with a tuner. WL -- From pubx1 at af2z.net Mon Jun 8 21:54:04 2020 From: pubx1 at af2z.net (Drew AF2Z) Date: Mon, 8 Jun 2020 21:54:04 -0400 Subject: [Elecraft] CW rise time setting In-Reply-To: <90AB5415-7E88-45EC-9C88-946AB0F6DF52@elecraft.com> References: <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> <90AB5415-7E88-45EC-9C88-946AB0F6DF52@elecraft.com> Message-ID: <1d9ed5c6-2790-9f35-f699-1ce59c56c0d0@af2z.net> A little off topic but is the sidetone also shaped or is it just a plain old sine wave? Actually, I wouldn't mind having the option to select a sawtooth or squarewave for the sidetone. I'm not sure why but it seems to make sending on a manual key better, prompting the reflexes to be a little crisper maybe... 73, Drew AF2Z On 06/08/20 14:38, Wayne Burdick wrote: > It?s closer to 4 ms. > > Wayne > N6KR > > ---- > elecraft.com > >> On Jun 8, 2020, at 12:32 PM, E.H. Russell wrote: >> >> ?I suppose shaping of the curve corners removes harmonics introduced by the abrupt transitions, allowing an accelerated ramp inbetween. But does this really reduce the total rise time to 2.5ms? It seems that the softening process must take some time. Wish I had a K3 here to scope against other radios. Anything published out there? >> >> >> >> Ed / w2rf >> >> >> >> >> >> >> >> From: Alan Bloom >> Sent: Monday, June 8, 2020 3:15 PM >> To: E.H. Russell >> Cc: 'Elecraft Reflector' >> Subject: Re: [Elecraft] CW rise time setting >> >> >> >> In the "good old days" key shaping was done simply by adding a capacitor to the key line or equivalent. That results in an exponential rise and/or fall time, which is not optimum, so the time constant had to be set pretty slow to avoid key clicks. Typically 5-10 ms. 10 ms results in "mushy" keying, especially at high CW speeds. >> >> >> >> Raised-cosine key shaping is close to optimum and is easy to implement with a DSP. It allows faster rise/fall times without key clicks. I assume Elecraft is using something like that. >> >> >> >> Alan N1AL >> >> >> >> >> >> >> >> >> >> >> >> On 2020-06-08 12:51, E.H. Russell wrote: >> >> I'm used to CW rise times in th 4-7ms range. Is this 2.5ms arrived at by a >> different metric? Is the curve added by sigmoidal shaping somehow excluded >> from the measurement? >> >> >> >> Ed / w2rf >> >> >> >> >> >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net > On >> Behalf Of Richard Stutsman >> Sent: Monday, June 8, 2020 1:31 PM >> To: David Gilbert > >> Cc: Elecraft Reflector > >> Subject: Re: [Elecraft] CW rise time setting >> >> >> >> Yes, I would regard a 2.5 msec rise time (using appropriate sigmoid >> >> shaping) to probably be ideal, in which case I would have no desire to >> modify or shorten it. I'll bet it will sound even better than a Drake or a >> Ten-Tec! >> >> >> >> I hereby withdraw my previous request/opinion. >> >> >> >> Rick N6IET >> >> >> >> On Mon, Jun 8, 2020 at 10:27 AM David Gilbert < > >> ab7echo at gmail.com > wrote: >> >> >> >> >> >> >> You don't need to generate clicks to have a crisp CW tone. Elecraft >> >> >> >> >> >> uses a pretty much optimally shaped waveform (some version of a cosine >> >> >> >> >> >> function) and if I remember correctly the rise time is only about 2.5 >> >> >> >> >> >> msec, although I could be wrong about that last part. And while you >> >> >> >> >> >> may be careful not to use short rise/fall times when the band is >> >> >> >> >> >> active, in the past there have been folks on the contesting reflector >> >> >> >> >> >> who openly admitted they purposely generate clicks by shortening the >> >> >> >> >> >> rise/fall times to give themselves elbow room. I will always >> >> >> >> >> >> appreciate that Elecraft doesn't give those miscreants the means to >> >> pollute the band. >> >> >> >> >> >> 73, >> >> >> >> >> >> Dave AB7E >> >> >> >> >> >> >> On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman < >> >> > rastuts at gmail.com > wrote: >> >> >> >> >> >> I for one would like to have some control over the rise/fall times. >> >> >> >> >> >> >> >> >> >> You want the cleanest (narrowest) of CW signals when operating on a >> >> >> >> >> >> crowded band or in a contest - unless you're a rare DX station. Most >> >> >> >> >> >> of my operations are 22wpm rag chews on very uncrowded bands. We're >> >> >> >> >> >> often the only discernible signals on an entire CW band. And >> >> >> >> >> >> conditions are often noisy with deep QSB. Why not allow those of us >> >> >> >> >> >> operating in those circumstances to shorten the rise times a bit, >> >> >> >> >> >> which makes it easier to copy in noisy conditions, when any close-in >> >> >> >> >> >> clicks or thumps aren't going to bother anybody? Copying a 'soft' >> >> >> >> >> >> weak CW signal is like trying to read a 'crisp' signal that's an >> >> >> >> >> >> entire S-unit weaker, IMO. >> >> >> >> >> >> >> >> >> >> My TS-590sg let's me do that, and I love it! >> >> >> >> >> >> >> >> >> >> Will the K4 sound as good as a Drake T4C? (Just askin'.) >> >> >> >> >> >> >> >> >> >> Rick N6IET >> >> >> >> >> >> >> >> >> >> N4ZR wrote: >> >> >> >> >> >> >> >> >> >> Will the K4 have options for setting CW rise and fall times...? >> >> >> >> >> >> Hi Pete, >> >> >> >> >> >> Probably not. We've always been very careful to ensure our rigs >> >> >> >> >> >> have an exceptional clean, click-free CW signal. (Third-party >> >> >> >> >> >> testing bears this >> >> >> >> >> >> out.) Minimizing the bandwidth requires a very specific rise/fall >> >> >> >> >> >> time >> >> >> >> >> >> and >> >> >> >> >> >> a hand-crafted sigmoidal shaping function in DSP. >> >> >> >> >> >> Colonel Sanders closely guards his fried chick recipe, Mrs. Fields >> >> >> >> >> >> won't reveal what's in her chocolate-chip cookies, and only >> >> >> >> >> >> selected firmware monks--sworn to secrecy--are privy to Elecraft's >> >> >> >> >> >> keying envelope coefficients :) 73, Wayne N6KR >> >> >> >> >> >> ______________________________________________________________ >> >> >> >> >> >> Elecraft mailing list >> >> >> >> >> >> Home: >> >> http://mailman.qth.net/mailman/listinfo/elecraft >> >> >> >> >> Help: >> >> http://mailman.qth.net/mmfaq.htm >> >> >> >> >> Post: > mailto:Elecraft at mailman.qth.net >> >> >> >> >> >> >> >> >> >> This list hosted by: http://www.qsl.net Please help >> >> support this >> >> >> >> >> email list: >> >> http://www.qsl.net/donate.html Message delivered to >> >> >> >> >> > ab7echo at gmail.com >> >> >> >> >> >> >> >> ______________________________________________________________ >> >> Elecraft mailing list >> >> Home: >> http://mailman.qth.net/mailman/listinfo/elecraft >> >> Help: http://mailman.qth.net/mmfaq.htm >> >> Post: > mailto:Elecraft at mailman.qth.net >> >> >> >> This list hosted by: http://www.qsl.net >> >> Please help support this email list: >> http://www.qsl.net/donate.html Message delivered to > >> ehr at qrv.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to alan at elecraft.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6kr at elecraft.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pubx1 at af2z.net > From dberger381 at gmail.com Mon Jun 8 21:55:02 2020 From: dberger381 at gmail.com (Don Berger) Date: Mon, 8 Jun 2020 21:55:02 -0400 Subject: [Elecraft] K3 on a boat Message-ID: the efficacy of a counterpoise on boats has been the subject of much study over the years during which many myths have been disproven. Among them is the need for connection to a grounding plate which is good for dissipating lightning but makes a poor counterpoise. Another myth is that length of material underwater is of any importance. Or that radials in the bilge is effective. Long story short - a so.id connection to any thruhull is equally effective. I know because I?ve tried all the options over many years. From n6kr at elecraft.com Mon Jun 8 22:13:27 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 8 Jun 2020 19:13:27 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: <1d9ed5c6-2790-9f35-f699-1ce59c56c0d0@af2z.net> References: <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> <90AB5415-7E88-45EC-9C88-946AB0F6DF52@elecraft.com> <1d9ed5c6-2790-9f35-f699-1ce59c56c0d0@af2z.net> Message-ID: <4577D971-F8BB-43DD-9D52-A32B366FD3CA@elecraft.com> Drew, We apply exactly the same shape to the sidetone, mute on/off, and mark/space transitions in FSK and PSK modes. Wayne N6KR > On Jun 8, 2020, at 6:54 PM, Drew AF2Z wrote: > > A little off topic but is the sidetone also shaped or is it just a plain old sine wave? > > Actually, I wouldn't mind having the option to select a sawtooth or squarewave for the sidetone. I'm not sure why but it seems to make sending on a manual key better, prompting the reflexes to be a little crisper maybe... > > 73, > Drew > AF2Z > > > > On 06/08/20 14:38, Wayne Burdick wrote: >> It?s closer to 4 ms. >> Wayne >> N6KR >> ---- >> elecraft.com >>> On Jun 8, 2020, at 12:32 PM, E.H. Russell wrote: >>> >>> ?I suppose shaping of the curve corners removes harmonics introduced by the abrupt transitions, allowing an accelerated ramp inbetween. But does this really reduce the total rise time to 2.5ms? It seems that the softening process must take some time. Wish I had a K3 here to scope against other radios. Anything published out there? >>> >>> >>> >>> Ed / w2rf >>> >>> >>> >>> >>> >>> >>> >>> From: Alan Bloom >>> Sent: Monday, June 8, 2020 3:15 PM >>> To: E.H. Russell >>> Cc: 'Elecraft Reflector' >>> Subject: Re: [Elecraft] CW rise time setting >>> >>> >>> >>> In the "good old days" key shaping was done simply by adding a capacitor to the key line or equivalent. That results in an exponential rise and/or fall time, which is not optimum, so the time constant had to be set pretty slow to avoid key clicks. Typically 5-10 ms. 10 ms results in "mushy" keying, especially at high CW speeds. >>> >>> >>> >>> Raised-cosine key shaping is close to optimum and is easy to implement with a DSP. It allows faster rise/fall times without key clicks. I assume Elecraft is using something like that. >>> >>> >>> >>> Alan N1AL >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> On 2020-06-08 12:51, E.H. Russell wrote: >>> >>> I'm used to CW rise times in th 4-7ms range. Is this 2.5ms arrived at by a >>> different metric? Is the curve added by sigmoidal shaping somehow excluded >>> from the measurement? >>> >>> >>> >>> Ed / w2rf >>> >>> >>> >>> >>> >>> >>> >>> -----Original Message----- >>> From: elecraft-bounces at mailman.qth.net > On >>> Behalf Of Richard Stutsman >>> Sent: Monday, June 8, 2020 1:31 PM >>> To: David Gilbert > >>> Cc: Elecraft Reflector > >>> Subject: Re: [Elecraft] CW rise time setting >>> >>> >>> >>> Yes, I would regard a 2.5 msec rise time (using appropriate sigmoid >>> >>> shaping) to probably be ideal, in which case I would have no desire to >>> modify or shorten it. I'll bet it will sound even better than a Drake or a >>> Ten-Tec! >>> >>> >>> >>> I hereby withdraw my previous request/opinion. >>> >>> >>> >>> Rick N6IET >>> >>> >>> >>> On Mon, Jun 8, 2020 at 10:27 AM David Gilbert < > >>> ab7echo at gmail.com > wrote: >>> >>> >>> >>> >>> >>> >>> You don't need to generate clicks to have a crisp CW tone. Elecraft >>> >>> >>> >>> >>> >>> uses a pretty much optimally shaped waveform (some version of a cosine >>> >>> >>> >>> >>> >>> function) and if I remember correctly the rise time is only about 2.5 >>> >>> >>> >>> >>> >>> msec, although I could be wrong about that last part. And while you >>> >>> >>> >>> >>> >>> may be careful not to use short rise/fall times when the band is >>> >>> >>> >>> >>> >>> active, in the past there have been folks on the contesting reflector >>> >>> >>> >>> >>> >>> who openly admitted they purposely generate clicks by shortening the >>> >>> >>> >>> >>> >>> rise/fall times to give themselves elbow room. I will always >>> >>> >>> >>> >>> >>> appreciate that Elecraft doesn't give those miscreants the means to >>> >>> pollute the band. >>> >>> >>> >>> >>> >>> 73, >>> >>> >>> >>> >>> >>> Dave AB7E >>> >>> >>> >>> >>> >>> >>> On Mon, Jun 8, 2020 at 9:23 AM Richard Stutsman < >>> >>> > rastuts at gmail.com > wrote: >>> >>> >>> >>> >>> >>> I for one would like to have some control over the rise/fall times. >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> You want the cleanest (narrowest) of CW signals when operating on a >>> >>> >>> >>> >>> >>> crowded band or in a contest - unless you're a rare DX station. Most >>> >>> >>> >>> >>> >>> of my operations are 22wpm rag chews on very uncrowded bands. We're >>> >>> >>> >>> >>> >>> often the only discernible signals on an entire CW band. And >>> >>> >>> >>> >>> >>> conditions are often noisy with deep QSB. Why not allow those of us >>> >>> >>> >>> >>> >>> operating in those circumstances to shorten the rise times a bit, >>> >>> >>> >>> >>> >>> which makes it easier to copy in noisy conditions, when any close-in >>> >>> >>> >>> >>> >>> clicks or thumps aren't going to bother anybody? Copying a 'soft' >>> >>> >>> >>> >>> >>> weak CW signal is like trying to read a 'crisp' signal that's an >>> >>> >>> >>> >>> >>> entire S-unit weaker, IMO. >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> My TS-590sg let's me do that, and I love it! >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> Will the K4 sound as good as a Drake T4C? (Just askin'.) >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> Rick N6IET >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> N4ZR wrote: >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> Will the K4 have options for setting CW rise and fall times...? >>> >>> >>> >>> >>> >>> Hi Pete, >>> >>> >>> >>> >>> >>> Probably not. We've always been very careful to ensure our rigs >>> >>> >>> >>> >>> >>> have an exceptional clean, click-free CW signal. (Third-party >>> >>> >>> >>> >>> >>> testing bears this >>> >>> >>> >>> >>> >>> out.) Minimizing the bandwidth requires a very specific rise/fall >>> >>> >>> >>> >>> >>> time >>> >>> >>> >>> >>> >>> and >>> >>> >>> >>> >>> >>> a hand-crafted sigmoidal shaping function in DSP. >>> >>> >>> >>> >>> >>> Colonel Sanders closely guards his fried chick recipe, Mrs. Fields >>> >>> >>> >>> >>> >>> won't reveal what's in her chocolate-chip cookies, and only >>> >>> >>> >>> >>> >>> selected firmware monks--sworn to secrecy--are privy to Elecraft's >>> >>> >>> >>> >>> >>> keying envelope coefficients :) 73, Wayne N6KR >>> >>> >>> >>> >>> >>> ______________________________________________________________ >>> >>> >>> >>> >>> >>> Elecraft mailing list >>> >>> >>> >>> >>> >>> Home: >>> >>> http://mailman.qth.net/mailman/listinfo/elecraft >>> >>> >>> >>> >>> Help: >>> >>> http://mailman.qth.net/mmfaq.htm >>> >>> >>> >>> >>> Post: > mailto:Elecraft at mailman.qth.net >>> >>> >>> >>> >>> >>> >>> >>> >>> >>> This list hosted by: http://www.qsl.net Please help >>> >>> support this >>> >>> >>> >>> >>> email list: >>> >>> http://www.qsl.net/donate.html Message delivered to >>> >>> >>> >>> >>> > ab7echo at gmail.com >>> >>> >>> >>> >>> >>> >>> >>> ______________________________________________________________ >>> >>> Elecraft mailing list >>> >>> Home: >>> http://mailman.qth.net/mailman/listinfo/elecraft >>> >>> Help: http://mailman.qth.net/mmfaq.htm >>> >>> Post: > mailto:Elecraft at mailman.qth.net >>> >>> >>> >>> This list hosted by: http://www.qsl.net >>> >>> Please help support this email list: >>> http://www.qsl.net/donate.html Message delivered to > >>> ehr at qrv.com >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to alan at elecraft.com >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to n6kr at elecraft.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to pubx1 at af2z.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From dbthompson at me.com Mon Jun 8 22:26:57 2020 From: dbthompson at me.com (David Thompson) Date: Mon, 8 Jun 2020 19:26:57 -0700 Subject: [Elecraft] Finding stuff on the 'net In-Reply-To: <228c963c-5ca5-f800-0cc9-a1edeb70c341@coho.net> References: <228c963c-5ca5-f800-0cc9-a1edeb70c341@coho.net> Message-ID: Thank you for sharing that, Kevin. It was lovely, almost to the point of being poetic. I just live over the hill from the writer, here in Carson City. The fishing analogy works. I?m learning Morse Code. I need practice and have a bit of key-fright. Slow-speed CWT is Wednesday, so I?m hoping to make a few contacts with some CWOps folks. That is, if the dog will let me focus on the radio for a few minutes. ;) One of my instructors was sending slow enough last Wednesday that I could copy him. I logged him as my second CW contact. I also sent him a QSL card. 73 de AG7TX David Thompson, AG7TX Jack of All Trades Master of None dbthompson at me.com > On Jun 8, 2020, at 17:47, kevinr wrote: > > I was looking for something else when I ran into this article. I got close to the end when I thought, "I recognize this guy." A few lines later my suspicions were confirmed :) I'm sure he won't mind being re-posted here. > > 73, Kevin. KD5ONS > > ================================================ > > > I find that CW has many practical and engaging aspects that I just don?t get with computer-mediated modes like FT8. You?d think I?d be burned out on CW by now, over 45 years since I was first licensed, but no, I?m still doin? it :) > > Yes, FT8 (etc.) is a no-brainer when, despite poor conditions, your goal is to log as many contacts as possible with as many states or countries as possible. It?s so streamlined and efficient that the whole process is readily automated. (If you haven?t read enough opinions on that, see "The mother of all FT8 threads? on QRZ.com , for example.) > > But back to CW. Here?s why it works for me. YMMV. > > CW feels personal and visceral, like driving a sports car rather than taking a cab. As with a sports car, there are risks. You can get clobbered by larger vehicles (QRM). Witness road range (?UP 2!?). Fall into a pothole (QSB). Be forced to drive through rain or snow (QRN). > > With CW, like other forms of human conversation, you can affect your own style. Make mistakes. Joke about it. > > CW is a skill that bonds operators together across generations and nations. A language, more like pidgin than anything else, with abbreviations and historical constructs and imperialist oddities. A curious club anyone can join. (At age 60 and able to copy 50 WPM on a good day, I may qualify as a Nerd Mason of some modest order, worthless in any other domain but of value in a contest.) > > With very simple equipment that anyone can build, such as a high-power single-transistor oscillator, you can transmit a CW signal. I had very little experience with electronics when I was 14 and built an oscillator that put out maybe 100 mW. Just twisted the leads of all those parts together and keyed the collector supply--a 9-volt battery. With this simple circuit on my desk, coupled to one guy wire of our TV antenna mast, I worked a station 150 miles away and was instantly hooked on building things. And on QRP. I?m sure the signal was key-clicky and had lots of harmonics. I?ve spent a lifetime making such things work better, but this is where it started. > > Going even further down the techno food chain, you can ?send? CW by whistling, flashing a lamp, tapping on someone?s leg under a table in civics class, or pounding a wrench on the inverted hull of an upside-down U.S. war vessel, as happened at Pearl Harbor. Last Saturday at an engineering club my son belongs to, a 9-year-old demonstrated an Arduino Uno flashing HELLO WORLD in Morse on an LED. The other kids were impressed, including my son, who promptly wrote a version that sends three independent Morse streams on three LEDs. A mini-pileup. His first program. > > Finally, to do CW you don?t always need a computer, keyboard, mouse, monitor, or software. Such things are invaluable in our daily lives, but for me, shutting down everything but the radio is the high point of my day. The small display glows like a mystic portal into my personal oyster, the RF spectrum. Unless I crank up the power, there?s no fan noise. Tuning the knob slowly from the bottom end of the band segment to the top is a bit like fishing my favorite stream, Taylor Creek, which connects Fallen Leaf Lake to Lake Tahoe. Drag the line across the green, sunlit pool. See what hits. Big trout? DX. Small trout? Hey, it?s still a fish, and a QSO across town is still a QSO. Admire it, then throw it back in. > > (BTW: You now know why the Elecraft K3, K3S, KX2, and KX3 all have built-in RTTY and PSK data modes that allow transmit via the keyer paddle and receive on the rig?s display. We decided to make these data modes conversational...like CW.) > > Back to 40 meters.... > > 73, > > Wayne > N6KR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dbthompson at me.com From ja1nlx0205 at my.email.ne.jp Mon Jun 8 22:33:32 2020 From: ja1nlx0205 at my.email.ne.jp (Yoshida Akira) Date: Tue, 9 Jun 2020 11:33:32 +0900 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> References: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> Message-ID: <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> Hi all Thanks for suggestions. All look OK to me. Power supply is Powerwerx ss-30DV. I do not use Powerpole connector in the front panel, instead use terminal in the back panel. I use this power supply for another TRX also and have never noticed the problem. 73 On 2020/06/09 9:00, Yoshida Akira wrote: > Hi all > > I have never seen this for many years, however I recently noticed twice > when transmitting FT8 with 100W. No alarm and error message. > When I simply push POWER button in front panel then it turns ON again. > > PA temp, DC voltage and DC current looks good. I do not believe RFI > cause this problem. > > Any idea ? > -- 73 de aki JA1NLX From rmcgraw at blomand.net Mon Jun 8 22:42:57 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 8 Jun 2020 21:42:57 -0500 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> References: <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> Message-ID: <62792559-2019-45A3-8EF9-770FA31862BE@blomand.net> I?m curious. When transmitting, why would one press the POWER button on the radio other than to turn the radio off? Something I am missing here. Bob, K4TAX Sent from my iPhone > On Jun 8, 2020, at 9:34 PM, Yoshida Akira wrote: > > ?Hi all > > Thanks for suggestions. All look OK to me. > > Power supply is Powerwerx ss-30DV. I do not use Powerpole connector > in the front panel, instead use terminal in the back panel. > > I use this power supply for another TRX also and have never noticed the problem. > > 73 > >> On 2020/06/09 9:00, Yoshida Akira wrote: >> Hi all >> >> I have never seen this for many years, however I recently noticed twice >> when transmitting FT8 with 100W. No alarm and error message. >> When I simply push POWER button in front panel then it turns ON again. >> >> PA temp, DC voltage and DC current looks good. I do not believe RFI >> cause this problem. >> >> Any idea ? >> > -- > 73 de aki > JA1NLX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From david.n5dch at gmail.com Mon Jun 8 22:51:06 2020 From: david.n5dch at gmail.com (David Herring) Date: Mon, 8 Jun 2020 20:51:06 -0600 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <62792559-2019-45A3-8EF9-770FA31862BE@blomand.net> References: <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> <62792559-2019-45A3-8EF9-770FA31862BE@blomand.net> Message-ID: He hits the power button to turn it back on. 73, David - N5DCH > On Jun 8, 2020, at 8:42 PM, Bob McGraw K4TAX wrote: > > I?m curious. When transmitting, why would one press the POWER button on the radio other than to turn the radio off? > > Something I am missing here. > > Bob, K4TAX > > > Sent from my iPhone > >> On Jun 8, 2020, at 9:34 PM, Yoshida Akira > wrote: >> >> ?Hi all >> >> Thanks for suggestions. All look OK to me. >> >> Power supply is Powerwerx ss-30DV. I do not use Powerpole connector >> in the front panel, instead use terminal in the back panel. >> >> I use this power supply for another TRX also and have never noticed the problem. >> >> 73 >> >>> On 2020/06/09 9:00, Yoshida Akira wrote: >>> Hi all >>> >>> I have never seen this for many years, however I recently noticed twice >>> when transmitting FT8 with 100W. No alarm and error message. >>> When I simply push POWER button in front panel then it turns ON again. >>> >>> PA temp, DC voltage and DC current looks good. I do not believe RFI >>> cause this problem. >>> >>> Any idea ? >>> >> -- >> 73 de aki >> JA1NLX >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to david.n5dch at gmail.com From ja1nlx0205 at my.email.ne.jp Mon Jun 8 23:00:50 2020 From: ja1nlx0205 at my.email.ne.jp (Yoshida Akira) Date: Tue, 9 Jun 2020 12:00:50 +0900 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <62792559-2019-45A3-8EF9-770FA31862BE@blomand.net> References: <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> <62792559-2019-45A3-8EF9-770FA31862BE@blomand.net> Message-ID: Bob When transmitting FT8, it suddenly shut down (power OFF) Of course I do not touch any button. It looks as if I push Power button. After a while I push Power button and it turns power ON.? Maybe Power button problem ??? 73 On 2020/06/09 11:42, Bob McGraw K4TAX wrote: > I?m curious. When transmitting, why would one press the POWER button on the radio other than to turn the radio off? > > Something I am missing here. > > Bob, K4TAX > > > Sent from my iPhone > >> On Jun 8, 2020, at 9:34 PM, Yoshida Akira wrote: >> >> ?Hi all >> >> Thanks for suggestions. All look OK to me. >> >> Power supply is Powerwerx ss-30DV. I do not use Powerpole connector >> in the front panel, instead use terminal in the back panel. >> >> I use this power supply for another TRX also and have never noticed the problem. >> >> 73 >> >>> On 2020/06/09 9:00, Yoshida Akira wrote: >>> Hi all >>> >>> I have never seen this for many years, however I recently noticed twice >>> when transmitting FT8 with 100W. No alarm and error message. >>> When I simply push POWER button in front panel then it turns ON again. >>> >>> PA temp, DC voltage and DC current looks good. I do not believe RFI >>> cause this problem. >>> >>> Any idea ? >>> >> -- >> 73 de aki >> JA1NLX >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net > -- 73 de aki JA1NLX From kwidelitz at gmail.com Mon Jun 8 23:20:36 2020 From: kwidelitz at gmail.com (Ken Widelitz) Date: Mon, 8 Jun 2020 20:20:36 -0700 Subject: [Elecraft] Using P3 Remotely Message-ID: Is anyone using a P3 remotely? If so, how? What is the bandwidth required? 73, Ken, K6LA / VY2TT From kevinr at coho.net Mon Jun 8 23:29:23 2020 From: kevinr at coho.net (kevinr) Date: Mon, 8 Jun 2020 20:29:23 -0700 Subject: [Elecraft] Joys of CW (skiing, an experiment in mixed metaphors) Message-ID: Running a CW net reminds me of skiing the trees in deep powder. The same exhilaration while being very much in the moment. I plan the approximate path with my heart rate rising.? Then push off, test how conditions let me ski, find the first tree, and set my jet turn radius through each tree's bowl.? Any mistake instantly corrected before I crash.? My focus narrows to the task at hand while my mind wanders free, thinking of other things. "Must be ten below."? Tree.? "This snow is great!"? Tree.? "Keep your tips up!"? Tree. "Can I make a clean corner which flows into the next without error?"? Can I gather four QNI in one call up?? Can I run the group cleanly?? Any mistakes are fleeting because I'm quickly engaged with the next op.? "Will that branch slap my face before I can get this pole up?"? Can I change the sentence on the fly to cover that spelling error? :) Logging happens between trees.? A moment's pause in sending, grab a pencil, and write notes, temperatures, activities, RST, etc. Drop the pencil, make a reply, and call the next op.? Once a rhythm is established things flow effortlessly ;)? Change antennas and try again.? Then I get to the lower slopes where speed slacks off and I'm working ops at ESP levels.? The trees pass more slowly and I start to see the bottom of the run.? When propagation has defined the depth of the catch I annotate my list and announce it.? Then off to chores or back to the lift?? Heart rate slows to resting. ?? Let it SNOW! ????? 73, ???????? Kevin.? KD5ONS - From ardrhi at gmail.com Mon Jun 8 23:50:00 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Mon, 8 Jun 2020 23:50:00 -0400 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: References: <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> <62792559-2019-45A3-8EF9-770FA31862BE@blomand.net> Message-ID: IT sounds like you're having a problem with the radio overheating and shutting down. FT8 and other digital modes like it have VERY long duty cycles, so the radio gets hot very fast. If the cooling can't keep up, the radio shuts down to protect itself. Reduce your RF power and see if it helps. If this hasn't happened for a long time, maybe you have a bad fan, or maybe you need to clean the radio. It might have a lot of dust keeping the fans from cooling it properly, just like a computer. I have to clean my computer regularly, to get the cat hair out of it so it doesn't overheat! I hope this helps! ??????? -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Mon, Jun 8, 2020 at 11:01 PM Yoshida Akira wrote: > Bob > > When transmitting FT8, it suddenly shut down (power OFF) Of course I do > not touch > any button. It looks as if I push Power button. > > After a while I push Power button and it turns power ON. Maybe Power > button problem ??? > > 73 > > On 2020/06/09 11:42, Bob McGraw K4TAX wrote: > > I?m curious. When transmitting, why would one press the POWER button on > the radio other than to turn the radio off? > > > > Something I am missing here. > > > > Bob, K4TAX > > > > > > Sent from my iPhone > > > >> On Jun 8, 2020, at 9:34 PM, Yoshida Akira > wrote: > >> > >> ?Hi all > >> > >> Thanks for suggestions. All look OK to me. > >> > >> Power supply is Powerwerx ss-30DV. I do not use Powerpole connector > >> in the front panel, instead use terminal in the back panel. > >> > >> I use this power supply for another TRX also and have never noticed the > problem. > >> > >> 73 > >> > >>> On 2020/06/09 9:00, Yoshida Akira wrote: > >>> Hi all > >>> > >>> I have never seen this for many years, however I recently noticed twice > >>> when transmitting FT8 with 100W. No alarm and error message. > >>> When I simply push POWER button in front panel then it turns ON again. > >>> > >>> PA temp, DC voltage and DC current looks good. I do not believe RFI > >>> cause this problem. > >>> > >>> Any idea ? > >>> > >> -- > >> 73 de aki > >> JA1NLX > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to rmcgraw at blomand.net > > > -- > 73 de aki > JA1NLX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com From buddy at brannan.name Tue Jun 9 00:14:31 2020 From: buddy at brannan.name (Buddy Brannan) Date: Tue, 9 Jun 2020 00:14:31 -0400 Subject: [Elecraft] Finding stuff on the 'net In-Reply-To: <9580C20D-7FEF-4802-823B-285C8B9C36E1@elecraft.com> References: <228c963c-5ca5-f800-0cc9-a1edeb70c341@coho.net> <9580C20D-7FEF-4802-823B-285C8B9C36E1@elecraft.com> Message-ID: <1275BBC4-A326-41D9-BE6C-EFC902D2C4AD@brannan.name> Wayne, I couldn?t have said this better, especially the bit about why you (ermmm?I) prefer my cw computer less. Computers are my day job. The Internyet is my day job. I love them both, but I like having that space where they are not. I even like taking it a step further and go straight key or bug. (Yes, I get a strange joy out of using a key that?s larger than the KX3 to which it is connected, but that?s neither here nor there.) I guess that having that space, having that skill, even at age 14 when I tried very hard to not like cw, is why I loved it in spite of myself, and why I love it still. It puts me into this place that nothing else ever has. I love its simplicity, both in concept and in what you need to use it, paired with the practice and skill it takes to use it. I still feel as though I?ve missed out a lot on the building experience, but I?m going to fix that shortcoming one way or another, one time or another. Even so, thanks for saying so well exactly those things I?ve felt for the past 33 years. Vy 73, Buddy Brannan, KB5ELV - Erie, PA Email: buddy at brannan.name Mobile: (814) 431-0962 > On Jun 8, 2020, at 9:02 PM, Wayne Burdick wrote: > > Guilty as charged :) > > Wayne > N6KR > > >> On Jun 8, 2020, at 5:47 PM, kevinr wrote: >> >> I was looking for something else when I ran into this article. I got close to the end when I thought, "I recognize this guy." A few lines later my suspicions were confirmed :) I'm sure he won't mind being re-posted here. >> >> 73, Kevin. KD5ONS >> >> ================================================ >> >> >> I find that CW has many practical and engaging aspects that I just don?t get with computer-mediated modes like FT8. You?d think I?d be burned out on CW by now, over 45 years since I was first licensed, but no, I?m still doin? it :) >> >> Yes, FT8 (etc.) is a no-brainer when, despite poor conditions, your goal is to log as many contacts as possible with as many states or countries as possible. It?s so streamlined and efficient that the whole process is readily automated. (If you haven?t read enough opinions on that, see "The mother of all FT8 threads? on QRZ.com , for example.) >> >> But back to CW. Here?s why it works for me. YMMV. >> >> CW feels personal and visceral, like driving a sports car rather than taking a cab. As with a sports car, there are risks. You can get clobbered by larger vehicles (QRM). Witness road range (?UP 2!?). Fall into a pothole (QSB). Be forced to drive through rain or snow (QRN). >> >> With CW, like other forms of human conversation, you can affect your own style. Make mistakes. Joke about it. >> >> CW is a skill that bonds operators together across generations and nations. A language, more like pidgin than anything else, with abbreviations and historical constructs and imperialist oddities. A curious club anyone can join. (At age 60 and able to copy 50 WPM on a good day, I may qualify as a Nerd Mason of some modest order, worthless in any other domain but of value in a contest.) >> >> With very simple equipment that anyone can build, such as a high-power single-transistor oscillator, you can transmit a CW signal. I had very little experience with electronics when I was 14 and built an oscillator that put out maybe 100 mW. Just twisted the leads of all those parts together and keyed the collector supply--a 9-volt battery. With this simple circuit on my desk, coupled to one guy wire of our TV antenna mast, I worked a station 150 miles away and was instantly hooked on building things. And on QRP. I?m sure the signal was key-clicky and had lots of harmonics. I?ve spent a lifetime making such things work better, but this is where it started. >> >> Going even further down the techno food chain, you can ?send? CW by whistling, flashing a lamp, tapping on someone?s leg under a table in civics class, or pounding a wrench on the inverted hull of an upside-down U.S. war vessel, as happened at Pearl Harbor. Last Saturday at an engineering club my son belongs to, a 9-year-old demonstrated an Arduino Uno flashing HELLO WORLD in Morse on an LED. The other kids were impressed, including my son, who promptly wrote a version that sends three independent Morse streams on three LEDs. A mini-pileup. His first program. >> >> Finally, to do CW you don?t always need a computer, keyboard, mouse, monitor, or software. Such things are invaluable in our daily lives, but for me, shutting down everything but the radio is the high point of my day. The small display glows like a mystic portal into my personal oyster, the RF spectrum. Unless I crank up the power, there?s no fan noise. Tuning the knob slowly from the bottom end of the band segment to the top is a bit like fishing my favorite stream, Taylor Creek, which connects Fallen Leaf Lake to Lake Tahoe. Drag the line across the green, sunlit pool. See what hits. Big trout? DX. Small trout? Hey, it?s still a fish, and a QSO across town is still a QSO. Admire it, then throw it back in. >> >> (BTW: You now know why the Elecraft K3, K3S, KX2, and KX3 all have built-in RTTY and PSK data modes that allow transmit via the keyer paddle and receive on the rig?s display. We decided to make these data modes conversational...like CW.) >> >> Back to 40 meters.... >> >> 73, >> >> Wayne >> N6KR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6kr at elecraft.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to buddy at brannan.name From pfizenmayer at q.com Tue Jun 9 02:02:25 2020 From: pfizenmayer at q.com (HP) Date: Tue, 9 Jun 2020 02:02:25 -0400 (EDT) Subject: [Elecraft] Using P3 utility Message-ID: <691552740.4721032.1591682545917.JavaMail.zimbra@q.com> Found some stuff sneaking up on this question in archives sounded like somework was being done ---- Is there a way to use the P3 image grabs -while connected to the K3 if the RS232 is being used by a logging program as well ? Can a "port sharing" utility be used -and if so which spigots ??? Same question for the K3S ???? Hank K7HP From k2vco.vic at gmail.com Tue Jun 9 02:36:54 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 9 Jun 2020 09:36:54 +0300 Subject: [Elecraft] WG: K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE30599@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> <82979E1B-66E0-4AA9-9C99-7439C5A7B15A@w2xj.net> <9CD18F7BAB72E447987F465BD087D603DBE30599@SRV-SBS1.kaletsch.local> Message-ID: Peter, One possible solution is a fiberglass vertical antenna (6m or more if possible) and two shortened radials. The radials can be as short as 0.10 wavelength at the lowest frequency, which might allow you to position them fore and aft on the boat. Naturally, you should make sure nobody can contact them while you're operating! The radials are connected together and fed through a common inductance to achieve an electrical length of 1/4 wavelength for each of them. Moxon discusses this type of counterpoise in his book "HF Antennas for all locations." You could use a remote tuner at the base, or if the cable is very short, the tuner in the radio, to resonate the whole system. You would have to adjust the inductor on the radials as well to change bands. I had a 40m vertical which used a 1/4 wavelength vertical element with four radials which were each only 3m long, fed through a common inductor as described. My radials were about 4m above the ground. It worked quite well. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 09/06/2020 2:14, Peter Kaletsch wrote: > Hi; > > Thank you very much for the feedback and suggestions. > > The suggested setup is surly good for testing, but I would prefer a > permanent installation more and I am very sure, my wife also does Or > should I say, I am sure, it's a must for here :-). And also the AX-1 > limits the output to 25 watts... > > Best regards > > 73, Peter > > From hdv at kpnplanet.nl Tue Jun 9 03:09:05 2020 From: hdv at kpnplanet.nl (hdv) Date: Tue, 09 Jun 2020 09:09:05 +0200 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: Message-ID: <1b9c1f94-aa20-11ea-a123-00505699b758@smtp.kpnmail.nl> Hi Jim,Yes, I am using this set-up, using the USB audio connection. Works great.Just select right or left channel microphone audio in the Audio set-up of each instance of WSJT.It could be that you also need to set stereo in Windows 10.?Go to the advanced microphone audio settings and select stereo with a high sampling rate.Be aware that this setting is sometimes reset to mono by W10 updates.73 HenkPA0CVerzonden vanaf mijn Samsung Galaxy-smartphone. -------- Oorspronkelijk bericht --------Van: Jim Miller Datum: 08-06-2020 22:24 (GMT+01:00) Aan: Elecraft Reflector Onderwerp: [Elecraft] Two instances of WSJT on K3s with SubRX? Has anyone run two instances of WSJT on a single K3s with the SubRX so asto be able to monitor both 50.323 and 50.313?Of course I'll only be able to transmit on the instance that has the MainRX but it would be handy to be able to see both.ThanksJim ab3cv______________________________________________________________Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:Elecraft at mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to hdv at kpnplanet.nl From d.cutter at ntlworld.com Tue Jun 9 06:22:42 2020 From: d.cutter at ntlworld.com (CUTTER DAVID) Date: Tue, 9 Jun 2020 11:22:42 +0100 (BST) Subject: [Elecraft] Using P3 Remotely In-Reply-To: References: Message-ID: <165312969.42093.1591698162482@mail2.virginmedia.com> Wayne did this at Visalia but I've forgotten how he did it. I recall he used a little laptop. David G3UNA/G6CP > On 09 June 2020 at 04:20 Ken Widelitz wrote: > > > Is anyone using a P3 remotely? If so, how? What is the bandwidth required? > > 73, Ken, K6LA / VY2TT > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to d.cutter at ntlworld.com From charlestropp at gmail.com Tue Jun 9 06:43:18 2020 From: charlestropp at gmail.com (Charles Tropp) Date: Tue, 9 Jun 2020 06:43:18 -0400 Subject: [Elecraft] W-2 Wattmeter for Sale Message-ID: I have a W-2 that needs a new home. Includes 1 2K power sensor, PC Cable with RS232 connector and power cable with Anderson power poles. Price $195 includes CONUS postage. Paypal OK. -- 73, Charles N2SO From PKaletsch at kaletsch-gmbh.de Tue Jun 9 06:51:08 2020 From: PKaletsch at kaletsch-gmbh.de (Peter Kaletsch) Date: Tue, 9 Jun 2020 10:51:08 +0000 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> Message-ID: <9CD18F7BAB72E447987F465BD087D603DBE34AD9@SRV-SBS1.kaletsch.local> Hi folks, Thanks a lot for all answers and information! Some I still have to read more accurate ana translate some special parts, because, as you can obviously read from my post, my English is horrible. I tend - and of course my wife does - to have a fixed installation. So extendable fiberglass masts or something like this is not the solution we are searching for. I will think about all suggestions, try some of them and report later this year, if there are any reporting worth solutions. We take over the boat during the next 2 weeks and after that, there is a lot of other marine stuff to do, before focusing on ham radio on board). Further answer are highly welcomed 73, Peter -----Urspr?ngliche Nachricht----- Von: Kurt Pawlikowski [mailto:kurtt at pinrod.com] Gesendet: Dienstag, 9. Juni 2020 03:16 An: Peter Kaletsch ; elecraft at mailman.qth.net Betreff: Re: [Elecraft] K3 working on motorboats - possible Peter, In general, any vertical works lots better with more radials. As fresh water is a fairly poor conductor, the more the merrier! Unfortunately, because most boats are wooden/fiberglass, what you can add helps. I don't know if they have to be 1/4 wavelength (I've read yes and some say at least 0.20 wavelength). For HF, this would be some serious lengths for most boats! I expect you'd have to load them similar to the vertical element, but I haven't read anything regarding loading radials: It's just a guess. I suppose one could attempt to replicate, to some extent, a solid ground plane with foil or some other conductor (maybe chicken wire?). It would seem a lot of work (and probably is!). If you're insistent on a vertical, it's a narrow field of variability. Some of the portable antenna's can make loaded dipoles or verticals, which would operate fairly well without a ground plane. Another option might be a magnetic loop (which doesn't care much about "ground" per se. It is affected by near-by conductors, tunes very narrowly, and is big (compared to a mobile vertical). So, whatever you choose, it's all some sort of compromise. kurtt WB9FMC On 6/8/2020 3:47 PM, Peter Kaletsch wrote: > Hello fellows; > > You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > > For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > > A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > > So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > > But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > > I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > > I am very grateful for every tip and every help - also to > pkaletsch at kaletsch-gmbh.de > > Thanks in advance > > Peter - DL1MDZ > > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: > +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > kurtt at pinrod.com ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From jim at jtmiller.com Tue Jun 9 08:10:56 2020 From: jim at jtmiller.com (Jim Miller) Date: Tue, 9 Jun 2020 08:10:56 -0400 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: <1b9c1f94-aa20-11ea-a123-00505699b758@smtp.kpnmail.nl> References: <1b9c1f94-aa20-11ea-a123-00505699b758@smtp.kpnmail.nl> Message-ID: Thanks! I'll keep playing around. jim ab3cv On Tue, Jun 9, 2020 at 3:09 AM hdv wrote: > Hi Jim, > > Yes, I am using this set-up, using the USB audio connection. Works great. > > Just select right or left channel microphone audio in the Audio set-up of > each instance of WSJT. > > It could be that you also need to set stereo in Windows 10. > Go to the advanced microphone audio settings and select stereo with a high > sampling rate. > Be aware that this setting is sometimes reset to mono by W10 updates. > > 73 Henk > PA0C > > > > Verzonden vanaf mijn Samsung Galaxy-smartphone. > > > -------- Oorspronkelijk bericht -------- > Van: Jim Miller > Datum: 08-06-2020 22:24 (GMT+01:00) > Aan: Elecraft Reflector > Onderwerp: [Elecraft] Two instances of WSJT on K3s with SubRX? > > Has anyone run two instances of WSJT on a single K3s with the SubRX so as > to be able to monitor both 50.323 and 50.313? > > Of course I'll only be able to transmit on the instance that has the Main > RX but it would be handy to be able to see both. > > Thanks > > Jim ab3cv > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to hdv at kpnplanet.nl > From dk5ya at dk5ya.de Tue Jun 9 08:29:28 2020 From: dk5ya at dk5ya.de (Udo Langenohl - DK5YA) Date: Tue, 9 Jun 2020 14:29:28 +0200 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: References: Message-ID: <197ffa71-e506-08e7-c0f9-1919585cac52@dk5ya.de> Jim, I do this for several years now in order to have full Xpol diversity capability on my 144 MHz EME system. I'm listening and decoding Hpol with one instance and Vpol with the second WSJT instance just by selecting right and left channel for each. Make sure to have both WSJT-X instances running in an own directory path each. 73 Udo, DK5YA Am 08.06.2020 um 22:23 schrieb Jim Miller: > Has anyone run two instances of WSJT on a single K3s with the SubRX so as > to be able to monitor both 50.323 and 50.313? > > Of course I'll only be able to transmit on the instance that has the Main > RX but it would be handy to be able to see both. > > Thanks > > Jim ab3cv > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dk5ya at dk5ya.de > -- ****************************************** Webs by DK5YA: * http://www.mmmonvhf.de/ [editor]* http://www.vhfdx.de/ [owner] * http://www.palekastro.de/ [owner] * http://www.solweb.de/ [owner] * http://www.spessartwetter.de/ [owner] * ****************************************** From prpntfmr at gmail.com Tue Jun 9 10:33:59 2020 From: prpntfmr at gmail.com (Frank C Richards) Date: Tue, 9 Jun 2020 10:33:59 -0400 Subject: [Elecraft] K3 on motorboat. Message-ID: Having been in the marine electronics business I was able to successfully install many HF radios on boats from large steel commercial fishing boats to a small 28 ft fiberglass fishing boat and sailboats. Anything metal , engine, fuel tanks,rudder posts,thru hulls, morse control cables,intercoolers outside of the hull,rub rail sections jumpered together to form one continuous loop. Dynaplates help but will not work well as the only source of ground. I once saw a carbon brush riding thru spring tension on a prop shaft, tying the prop to ground. It can be tricky as sometimes you get ground loops and you must be aware of currents that can cause electrolysis. For the antenna we primarily used a 23 ft whip, sometimes on large vessels a longwire. This was before synthesized radios and autouners. My favorite radio was the Drake TRM which had a built in manual tuner and a 50 ohm output if you wanted to use a trapped vertical. On commercial fishing boats you had to leave the dock so that the outriggers could be lowered and trawl doors put in the water as this changed the tuning quite a bit from being at the dock. Interestingly enough I think the toughest time I had tuning was on an 85 ft steel shrimp boat even with all that metal. . From pvandyke1953 at gmail.com Tue Jun 9 11:18:01 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Tue, 9 Jun 2020 11:18:01 -0400 Subject: [Elecraft] New Elecraft Nets Message-ID: I thought I had posted information on all the Elecraft Nets including the NEW 80 Meter Net to the list. I have not seen it Just seeing if this gets thru Paul KB9AVO ______________________________ We have various ones ... stretch and meet others. Propagation means it all changes.. Put a copy up in your shack Paul - KB9AVO The Elecraft Nets ---------------------------------- 20 Meter SSB Elecraft Net Sunday 14.3035 +/- kHz at 1800Z 40 Meter SSB Elecraft Net Sunday 7.280 kHz at 18:45z 20 Meter CW Elecraft Net Sunday 14.050.5 kHz at 2200z: 40 Meter CW Elecraft Net Sunday 7.047.5 kHz at 0000z: 80 Meter SSB Elecraft Net Sunday Night 3.940+/- at 01:00z From frantz at pwpconsult.com Tue Jun 9 12:27:42 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Tue, 9 Jun 2020 12:27:42 -0400 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> Message-ID: I have seen this problem with my K3 when the voltage drops suddenly and the radio just shuts down. Check the voltage while sending using the internal volt meter in the radio and see whether the voltage significantly drops during transmit. Gwen's idea of too much heat may also be correct, but I never had significant heat problems with my K3/100 running FT8 at 100W. I could hear the fans speed up by the end of a FT8 cycle and then drop back by the end of a receive cycle. You can also monitor the PA TEMP to see how high it is. Both these measurements are accessed by toggling DISP and turning the VFO B knob. 73 Bill AE6JV On 6/9/20 at 10:33 PM, ja1nlx0205 at my.email.ne.jp (Yoshida Akira) wrote: >Hi all > >Thanks for suggestions. All look OK to me. > >Power supply is Powerwerx ss-30DV. I do not use Powerpole connector >in the front panel, instead use terminal in the back panel. > >I use this power supply for another TRX also and have never noticed the problem. > >73 > >On 2020/06/09 9:00, Yoshida Akira wrote: >>Hi all >> >>I have never seen this for many years, however I recently noticed twice >>when transmitting FT8 with 100W. No alarm and error message. >>When I simply push POWER button in front panel then it turns ON again. >> >>PA temp, DC voltage and DC current looks good. I do not believe RFI >>cause this problem. >> >>Any idea ? >> ----------------------------------------------------------------------- Bill Frantz | gets() remains as a monument | Periwinkle (408)348-7900 | to C's continuing support of | 150 Rivermead Rd #235 www.pwpconsult.com | buffer overruns. | Peterborough, NH 03458 From W2xj at w2xj.net Tue Jun 9 12:34:23 2020 From: W2xj at w2xj.net (W2xj) Date: Tue, 9 Jun 2020 12:34:23 -0400 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE34AD9@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE34AD9@SRV-SBS1.kaletsch.local> Message-ID: <46826508-DBBE-4696-9FC0-6A561CE5D136@w2xj.net> i think your engineering challenge is primarily balancing esthetics against performance. Sent from my iPad > On Jun 9, 2020, at 6:52 AM, Peter Kaletsch wrote: > > ?Hi folks, > > Thanks a lot for all answers and information! Some I still have to read more accurate ana translate some special parts, because, as you can obviously read from my post, my English is horrible. > > I tend - and of course my wife does - to have a fixed installation. So extendable fiberglass masts or something like this is not the solution we are searching for. > > I will think about all suggestions, try some of them and report later this year, if there are any reporting worth solutions. We take over the boat during the next 2 weeks and after that, there is a lot of other marine stuff to do, before focusing on ham radio on board). > > Further answer are highly welcomed > > > 73, Peter > > -----Urspr?ngliche Nachricht----- > Von: Kurt Pawlikowski [mailto:kurtt at pinrod.com] > Gesendet: Dienstag, 9. Juni 2020 03:16 > An: Peter Kaletsch ; elecraft at mailman.qth.net > Betreff: Re: [Elecraft] K3 working on motorboats - possible > > Peter, > > In general, any vertical works lots better with more radials. As fresh water is a fairly poor conductor, the more the merrier! > Unfortunately, because most boats are wooden/fiberglass, what you can add helps. I don't know if they have to be 1/4 wavelength (I've read yes and some say at least 0.20 wavelength). For HF, this would be some serious lengths for most boats! I expect you'd have to load them similar to the vertical element, but I haven't read anything regarding loading > radials: It's just a guess. I suppose one could attempt to replicate, to some extent, a solid ground plane with foil or some other conductor (maybe chicken wire?). It would seem a lot of work (and probably is!). > If you're insistent on a vertical, it's a narrow field of variability. > Some of the portable antenna's can make loaded dipoles or verticals, which would operate fairly well without a ground plane. Another option might be a magnetic loop (which doesn't care much about "ground" per se. > It is affected by near-by conductors, tunes very narrowly, and is big (compared to a mobile vertical). So, whatever you choose, it's all some sort of compromise. > > kurtt WB9FMC > >> On 6/8/2020 3:47 PM, Peter Kaletsch wrote: >> Hello fellows; >> >> You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. >> >> For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. >> >> A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. >> >> So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? >> >> But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. >> >> I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? >> >> I am very grateful for every tip and every help - also to >> pkaletsch at kaletsch-gmbh.de >> >> Thanks in advance >> >> Peter - DL1MDZ >> >> >> ________________________________ >> Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: >> +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: >> Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> kurtt at pinrod.com > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | > Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net From charlestropp at gmail.com Tue Jun 9 13:08:19 2020 From: charlestropp at gmail.com (Charles Tropp) Date: Tue, 9 Jun 2020 13:08:19 -0400 Subject: [Elecraft] Elecraft W2 For Sale (Sold Pending receipt of funds) Message-ID: Many thanks for your interest. -- 73, Charles N2SO From alorona at sbcglobal.net Tue Jun 9 14:07:38 2020 From: alorona at sbcglobal.net (Al Lorona) Date: Tue, 9 Jun 2020 18:07:38 +0000 (UTC) Subject: [Elecraft] CW rise time setting In-Reply-To: References: Message-ID: <171845577.1780813.1591726058809@mail.yahoo.com> I used to think that the rise and fall times of the CW pulse didn't really matter much to the sideband levels; I believed that it was more a function of the waveshaping, especially at the corners of the pulse. But I just ran a quick simulation of a pulse train going through both a raised cosine and then a sigmoid filter (because those two have been mentioned in this thread) and the rise time definitely does affect the pulse sidebands.? The reduction in the sideband levels (what some folks here called 'clicks'... not sure that's a good name for this) varies depending on where you measure it, but in general the sidebands will drop anywhere from 0 to 12 dB-- sometimes less, sometimes more--? when you go from 2 msec to 8 msec rise/fall times. For instance, arbitrarily choosing an offset of 500 Hz from the carrier, the sideband drops by 11 dB for the longer rise time. That turns out to be a fairly typical value. And by the way, in general the sigmoid does a better job than a raised cosine. Arbitrarily defining the occupied bandwidth as the -60 dBc points of the spectrum, and using the sigmoid function with an exponent of -1, the bandwidth of the rise time = 8 msec pulse is 420 Hz versus 640 Hz for the pulse with 2 msec rise time. It's not an enormous difference, but it is something. Anyway, there's another data point for the discussion. R, Al? W6LX From gordon.lapoint at gmail.com Tue Jun 9 14:44:30 2020 From: gordon.lapoint at gmail.com (Gordon LaPoint) Date: Tue, 9 Jun 2020 14:44:30 -0400 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software Message-ID: Can these remote software's be in host mode on startup?? I run a remote and would like to have them connect to the hardware and be in host mode on boot of the computer.? Right now I just log on remotely and start each one as needed. Thanks, Gordon - N1MGO From k6dgw at foothill.net Tue Jun 9 14:45:36 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Tue, 9 Jun 2020 11:45:36 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: <171845577.1780813.1591726058809@mail.yahoo.com> References: <171845577.1780813.1591726058809@mail.yahoo.com> Message-ID: <6bb63a0f-cd79-10c5-b550-5dc6fb2ca706@foothill.net> Which sigmoid function did you model, Al? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/9/2020 11:07 AM, Al Lorona wrote: > I used to think that the rise and fall times of the CW pulse didn't really matter much to the sideband levels; I believed that it was more a function of the waveshaping, especially at the corners of the pulse. > > But I just ran a quick simulation of a pulse train going through both a raised cosine and then a sigmoid filter (because those two have been mentioned in this thread) and the rise time definitely does affect the pulse sidebands. > > The reduction in the sideband levels (what some folks here called 'clicks'... not sure that's a good name for this) varies depending on where you measure it, but in general the sidebands will drop anywhere from 0 to 12 dB-- sometimes less, sometimes more--? when you go from 2 msec to 8 msec rise/fall times. For instance, arbitrarily choosing an offset of 500 Hz from the carrier, the sideband drops by 11 dB for the longer rise time. That turns out to be a fairly typical value. And by the way, in general the sigmoid does a better job than a raised cosine. > > Arbitrarily defining the occupied bandwidth as the -60 dBc points of the spectrum, and using the sigmoid function with an exponent of -1, the bandwidth of the rise time = 8 msec pulse is 420 Hz versus 640 Hz for the pulse with 2 msec rise time. It's not an enormous difference, but it is something. > > Anyway, there's another data point for the discussion. > > R, > > Al? W6LX > From k7voradio at gmail.com Tue Jun 9 15:22:27 2020 From: k7voradio at gmail.com (Robert Sands) Date: Tue, 9 Jun 2020 12:22:27 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: Message-ID: Verticals require more attention to ground but the goal should be to increase the antenna current, thus increasing radiated signal. ground into water seems like a waste but has DC grounding value. I use hung vertical dipoles (20 and 15) with no need for ground and they work amazingly well. I have tried letting wire or zinc ribbon strips drop into saltwater to ground verticals and there is no value I can detect over something simpler, like tying to existing structures or running a above water wire counterpoise. Vertical dipoles require no Rf ground and propagate at low angle and high efficiency. Far effects over water are what counts, more than grounding, except in verticals to get higher antenna current. K7VO On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards wrote: > Having been in the marine electronics business I was able to successfully > install many HF radios on boats from large steel commercial fishing boats > to a small 28 ft fiberglass fishing boat and sailboats. > Anything metal , engine, fuel tanks,rudder posts,thru hulls, morse control > cables,intercoolers outside of the hull,rub rail sections jumpered together > to form one continuous loop. Dynaplates help but will not work well as the > only source of ground. I once saw a carbon brush riding thru spring tension > on a prop shaft, tying the prop to ground. > It can be tricky as sometimes you get ground loops and you must be aware > of currents that can cause electrolysis. > For the antenna we primarily used a 23 ft whip, sometimes on large vessels > a longwire. > This was before synthesized radios and autouners. My favorite radio was > the > Drake TRM which had a built in manual tuner and a 50 ohm output if you > wanted > to use a trapped vertical. > On commercial fishing boats you had to leave the dock so that the > outriggers > could be lowered and trawl doors put in the water as this changed the > tuning > quite a bit from being at the dock. Interestingly enough I think the > toughest > time I had tuning was on an 85 ft steel shrimp boat even with all that > metal. > . > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7voradio at gmail.com > From W2xj at w2xj.net Tue Jun 9 15:35:32 2020 From: W2xj at w2xj.net (W2xj) Date: Tue, 9 Jun 2020 15:35:32 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: Message-ID: <1864122A-B41E-44D3-A819-71D76F4D119C@w2xj.net> i think there is an esthetic problem that is more important. Sent from my iPad > On Jun 9, 2020, at 3:24 PM, Robert Sands wrote: > > ?Verticals require more attention to ground but the goal should be to > increase the antenna current, thus increasing radiated signal. ground into > water seems like a waste but has DC grounding value. I use hung vertical > dipoles (20 and 15) with no need for ground and they work amazingly well. I > have tried letting wire or zinc ribbon strips drop into saltwater to > ground verticals and there is no value I can detect over something simpler, > like tying to existing structures or running a above water wire > counterpoise. Vertical dipoles require no Rf ground and propagate at low > angle and high efficiency. Far effects over water are what counts, more > than grounding, except in verticals to get higher antenna current. > K7VO > >> On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards wrote: >> >> Having been in the marine electronics business I was able to successfully >> install many HF radios on boats from large steel commercial fishing boats >> to a small 28 ft fiberglass fishing boat and sailboats. >> Anything metal , engine, fuel tanks,rudder posts,thru hulls, morse control >> cables,intercoolers outside of the hull,rub rail sections jumpered together >> to form one continuous loop. Dynaplates help but will not work well as the >> only source of ground. I once saw a carbon brush riding thru spring tension >> on a prop shaft, tying the prop to ground. >> It can be tricky as sometimes you get ground loops and you must be aware >> of currents that can cause electrolysis. >> For the antenna we primarily used a 23 ft whip, sometimes on large vessels >> a longwire. >> This was before synthesized radios and autouners. My favorite radio was >> the >> Drake TRM which had a built in manual tuner and a 50 ohm output if you >> wanted >> to use a trapped vertical. >> On commercial fishing boats you had to leave the dock so that the >> outriggers >> could be lowered and trawl doors put in the water as this changed the >> tuning >> quite a bit from being at the dock. Interestingly enough I think the >> toughest >> time I had tuning was on an 85 ft steel shrimp boat even with all that >> metal. >> . >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k7voradio at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net > From jim at audiosystemsgroup.com Tue Jun 9 15:45:41 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 9 Jun 2020 12:45:41 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: <171845577.1780813.1591726058809@mail.yahoo.com> References: <171845577.1780813.1591726058809@mail.yahoo.com> Message-ID: <0d67a99a-2fa5-3962-1b17-99d7ef2eacb5@audiosystemsgroup.com> On 6/9/2020 11:07 AM, Al Lorona wrote: > The reduction in the sideband levels (what some folks here called 'clicks'... not sure that's a good name for this) varies depending on where you measure it, but in general the sidebands will drop anywhere from 0 to 12 dB-- sometimes less, sometimes more--? when you go from 2 msec to 8 msec rise/fall times. For instance, arbitrarily choosing an offset of 500 Hz from the carrier, the sideband drops by 11 dB for the longer rise time. That turns out to be a fairly typical value. And by the way, in general the sigmoid does a better job than a raised cosine. I've not looked at the math, but I've measured more than a half dozen radios, most with variable time constant shaping, and Elecraft with their fixed sigmoidal shaping. The data is here. http://k9yc.com/P3_Spectrum_Measurements.pdf A K3 at 25W (driving a KPA500 to full power) is 50 dB down 230 Hz either side of the signal, 60 dB down at 305 Hz. At 40W driving a legal limit tube amp (Ten Tec Titan) sidebands at the power amp output are 50 dB down at 235 Hz, 60 dB down at 335 Hz. A neighbor's FT1000 Mark V Field was 50 dB down at 665 Hz. Another neighbor's FTDX5000 set for 6 msec was 50 dB down at 410 Hz, 60 dB down at 1.05 kHz before the firmware update. It improved to -50 dB at 310 Hz and -60 at 535 Hz after the update. 73, Jim K9YC From PKaletsch at kaletsch-gmbh.de Tue Jun 9 15:54:48 2020 From: PKaletsch at kaletsch-gmbh.de (Peter Kaletsch) Date: Tue, 9 Jun 2020 19:54:48 +0000 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <46826508-DBBE-4696-9FC0-6A561CE5D136@w2xj.net> References: <9CD18F7BAB72E447987F465BD087D603DBE34AD9@SRV-SBS1.kaletsch.local> <46826508-DBBE-4696-9FC0-6A561CE5D136@w2xj.net> Message-ID: <9CD18F7BAB72E447987F465BD087D603DBE383B1@SRV-SBS1.kaletsch.local> I agree, but I think that's a common issue for married hams! Happy wife, happy live :-) 73, Peter -----Urspr?ngliche Nachricht----- Von: W2xj [mailto:W2xj at w2xj.net] Gesendet: Dienstag, 9. Juni 2020 18:34 An: Peter Kaletsch Cc: elecraft at mailman.qth.net Betreff: Re: [Elecraft] K3 working on motorboats - possible i think your engineering challenge is primarily balancing esthetics against performance. Sent from my iPad > On Jun 9, 2020, at 6:52 AM, Peter Kaletsch wrote: > > ?Hi folks, > > Thanks a lot for all answers and information! Some I still have to read more accurate ana translate some special parts, because, as you can obviously read from my post, my English is horrible. > > I tend - and of course my wife does - to have a fixed installation. So extendable fiberglass masts or something like this is not the solution we are searching for. > > I will think about all suggestions, try some of them and report later this year, if there are any reporting worth solutions. We take over the boat during the next 2 weeks and after that, there is a lot of other marine stuff to do, before focusing on ham radio on board). > > Further answer are highly welcomed > > > 73, Peter > > -----Urspr?ngliche Nachricht----- > Von: Kurt Pawlikowski [mailto:kurtt at pinrod.com] > Gesendet: Dienstag, 9. Juni 2020 03:16 > An: Peter Kaletsch ; > elecraft at mailman.qth.net > Betreff: Re: [Elecraft] K3 working on motorboats - possible > > Peter, > > In general, any vertical works lots better with more radials. As fresh water is a fairly poor conductor, the more the merrier! > Unfortunately, because most boats are wooden/fiberglass, what you can > add helps. I don't know if they have to be 1/4 wavelength (I've read > yes and some say at least 0.20 wavelength). For HF, this would be some > serious lengths for most boats! I expect you'd have to load them > similar to the vertical element, but I haven't read anything regarding > loading > radials: It's just a guess. I suppose one could attempt to replicate, to some extent, a solid ground plane with foil or some other conductor (maybe chicken wire?). It would seem a lot of work (and probably is!). > If you're insistent on a vertical, it's a narrow field of variability. > Some of the portable antenna's can make loaded dipoles or verticals, which would operate fairly well without a ground plane. Another option might be a magnetic loop (which doesn't care much about "ground" per se. > It is affected by near-by conductors, tunes very narrowly, and is big (compared to a mobile vertical). So, whatever you choose, it's all some sort of compromise. > > kurtt WB9FMC > >> On 6/8/2020 3:47 PM, Peter Kaletsch wrote: >> Hello fellows; >> >> You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. >> >> For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. >> >> A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. >> >> So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? >> >> But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. >> >> I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? >> >> I am very grateful for every tip and every help - also to >> pkaletsch at kaletsch-gmbh.de >> >> Thanks in advance >> >> Peter - DL1MDZ >> >> >> ________________________________ >> Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: >> +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: >> Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email >> list: http://www.qsl.net/donate.html Message delivered to >> kurtt at pinrod.com > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: > +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > w2xj at w2xj.net ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From W2xj at w2xj.net Tue Jun 9 16:18:16 2020 From: W2xj at w2xj.net (W2xj) Date: Tue, 9 Jun 2020 16:18:16 -0400 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE383B1@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE383B1@SRV-SBS1.kaletsch.local> Message-ID: marry a ham! :-) Sent from my iPad > On Jun 9, 2020, at 3:54 PM, Peter Kaletsch wrote: > > ?I agree, but I think that's a common issue for married hams! Happy wife, happy live :-) > > 73, Peter > > -----Urspr?ngliche Nachricht----- > Von: W2xj [mailto:W2xj at w2xj.net] > Gesendet: Dienstag, 9. Juni 2020 18:34 > An: Peter Kaletsch > Cc: elecraft at mailman.qth.net > Betreff: Re: [Elecraft] K3 working on motorboats - possible > > i think your engineering challenge is primarily balancing esthetics against performance. > > Sent from my iPad > >> On Jun 9, 2020, at 6:52 AM, Peter Kaletsch wrote: >> >> ?Hi folks, >> >> Thanks a lot for all answers and information! Some I still have to read more accurate ana translate some special parts, because, as you can obviously read from my post, my English is horrible. >> >> I tend - and of course my wife does - to have a fixed installation. So extendable fiberglass masts or something like this is not the solution we are searching for. >> >> I will think about all suggestions, try some of them and report later this year, if there are any reporting worth solutions. We take over the boat during the next 2 weeks and after that, there is a lot of other marine stuff to do, before focusing on ham radio on board). >> >> Further answer are highly welcomed >> >> >> 73, Peter >> >> -----Urspr?ngliche Nachricht----- >> Von: Kurt Pawlikowski [mailto:kurtt at pinrod.com] >> Gesendet: Dienstag, 9. Juni 2020 03:16 >> An: Peter Kaletsch ; >> elecraft at mailman.qth.net >> Betreff: Re: [Elecraft] K3 working on motorboats - possible >> >> Peter, >> >> In general, any vertical works lots better with more radials. As fresh water is a fairly poor conductor, the more the merrier! >> Unfortunately, because most boats are wooden/fiberglass, what you can >> add helps. I don't know if they have to be 1/4 wavelength (I've read >> yes and some say at least 0.20 wavelength). For HF, this would be some >> serious lengths for most boats! I expect you'd have to load them >> similar to the vertical element, but I haven't read anything regarding >> loading >> radials: It's just a guess. I suppose one could attempt to replicate, to some extent, a solid ground plane with foil or some other conductor (maybe chicken wire?). It would seem a lot of work (and probably is!). >> If you're insistent on a vertical, it's a narrow field of variability. >> Some of the portable antenna's can make loaded dipoles or verticals, which would operate fairly well without a ground plane. Another option might be a magnetic loop (which doesn't care much about "ground" per se. >> It is affected by near-by conductors, tunes very narrowly, and is big (compared to a mobile vertical). So, whatever you choose, it's all some sort of compromise. >> >> kurtt WB9FMC >> >>>> On 6/8/2020 3:47 PM, Peter Kaletsch wrote: >>> Hello fellows; >>> >>> You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. >>> >>> For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. >>> >>> A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. >>> >>> So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? >>> >>> But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. >>> >>> I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? >>> >>> I am very grateful for every tip and every help - also to >>> pkaletsch at kaletsch-gmbh.de >>> >>> Thanks in advance >>> >>> Peter - DL1MDZ >>> >>> >>> ________________________________ >>> Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: >>> +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: >>> Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email >>> list: http://www.qsl.net/donate.html Message delivered to >>> kurtt at pinrod.com >> ________________________________ >> Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: >> +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: >> Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> w2xj at w2xj.net > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | > Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From gt-i at gmx.net Tue Jun 9 16:21:21 2020 From: gt-i at gmx.net (gt-i at gmx.net) Date: Tue, 9 Jun 2020 22:21:21 +0200 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> Message-ID: <3710e4dc-f569-d4cc-3105-d2a16df4a44f@gmx.net> Hello Peter, I think it depends on your willingnes to sacrify the shape of your boat. If you want to get heard anywhere then you either need a long vertical plus good ground as mentioned already, or a dipole as high above sea level as possible. The dipole may be sloped but either the feedpoint needs to be elevated or the ends of the wire. I have operated both configurations near fresh water with kind of satisfaction (~500km on 7/14 MHz are possible on 10Watts) , but not yet on a boat. The Rothammel also mentions "Marineantennen" and discusses the grounding and antenna suggestions. Seems like an interesting experiment, hope you get on the air soon! 73 Gernot DF5RF BTW, you can use www.deepl.com for a quick translation to German: "Ich denke, es h?ngt von Ihrer Bereitschaft ab, die Form Ihres Bootes zu opfern. Wenn Sie irgendwo geh?rt werden wollen, dann brauchen Sie entweder eine lange Vertikale plus guten Boden, wie bereits erw?hnt, oder einen Dipol so hoch ?ber dem Meeresspiegel wie m?glich. Der Dipol kann geneigt sein, aber entweder der Speisepunkt oder die Drahtenden m?ssen erh?ht sein. Ich habe beide Konfigurationen in der N?he von S??wasser mit einer gewissen Befriedigung betrieben (~500km auf 7/14 MHz sind bei 10Watt m?glich), aber noch nicht auf einem Boot. Der Rothammel erw?hnt auch "Marineantennen" und bespricht die Erdung und Antennenvorschl?ge. Scheint ein interessantes Experiment zu sein, Ich hoffe, Sie gehen bald auf Sendung! ?bersetzt mit www.DeepL.com/Translator (kostenlose Version)" Am 08.06.2020 um 22:47 schrieb Peter Kaletsch: > Hello fellows; > > You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > > For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > > A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > > So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > > But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > > I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > > I am very grateful for every tip and every help - also to pkaletsch at kaletsch-gmbh.de > > Thanks in advance > > Peter - DL1MDZ > > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | > Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gt-i at gmx.net From PKaletsch at kaletsch-gmbh.de Tue Jun 9 16:24:22 2020 From: PKaletsch at kaletsch-gmbh.de (Peter Kaletsch) Date: Tue, 9 Jun 2020 20:24:22 +0000 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: References: <9CD18F7BAB72E447987F465BD087D603DBE383B1@SRV-SBS1.kaletsch.local> Message-ID: <9CD18F7BAB72E447987F465BD087D603DBE387C9@SRV-SBS1.kaletsch.local> No chance hihihihihi :-) -----Urspr?ngliche Nachricht----- Von: W2xj [mailto:W2xj at w2xj.net] Gesendet: Dienstag, 9. Juni 2020 22:18 An: Peter Kaletsch Cc: elecraft at mailman.qth.net Betreff: Re: [Elecraft] K3 working on motorboats - possible marry a ham! :-) Sent from my iPad > On Jun 9, 2020, at 3:54 PM, Peter Kaletsch wrote: > > ?I agree, but I think that's a common issue for married hams! Happy > wife, happy live :-) > > 73, Peter > > -----Urspr?ngliche Nachricht----- > Von: W2xj [mailto:W2xj at w2xj.net] > Gesendet: Dienstag, 9. Juni 2020 18:34 > An: Peter Kaletsch > Cc: elecraft at mailman.qth.net > Betreff: Re: [Elecraft] K3 working on motorboats - possible > > i think your engineering challenge is primarily balancing esthetics against performance. > > Sent from my iPad > >> On Jun 9, 2020, at 6:52 AM, Peter Kaletsch wrote: >> >> ?Hi folks, >> >> Thanks a lot for all answers and information! Some I still have to read more accurate ana translate some special parts, because, as you can obviously read from my post, my English is horrible. >> >> I tend - and of course my wife does - to have a fixed installation. So extendable fiberglass masts or something like this is not the solution we are searching for. >> >> I will think about all suggestions, try some of them and report later this year, if there are any reporting worth solutions. We take over the boat during the next 2 weeks and after that, there is a lot of other marine stuff to do, before focusing on ham radio on board). >> >> Further answer are highly welcomed >> >> >> 73, Peter >> >> -----Urspr?ngliche Nachricht----- >> Von: Kurt Pawlikowski [mailto:kurtt at pinrod.com] >> Gesendet: Dienstag, 9. Juni 2020 03:16 >> An: Peter Kaletsch ; >> elecraft at mailman.qth.net >> Betreff: Re: [Elecraft] K3 working on motorboats - possible >> >> Peter, >> >> In general, any vertical works lots better with more radials. As fresh water is a fairly poor conductor, the more the merrier! >> Unfortunately, because most boats are wooden/fiberglass, what you can >> add helps. I don't know if they have to be 1/4 wavelength (I've read >> yes and some say at least 0.20 wavelength). For HF, this would be >> some serious lengths for most boats! I expect you'd have to load them >> similar to the vertical element, but I haven't read anything >> regarding loading >> radials: It's just a guess. I suppose one could attempt to replicate, to some extent, a solid ground plane with foil or some other conductor (maybe chicken wire?). It would seem a lot of work (and probably is!). >> If you're insistent on a vertical, it's a narrow field of variability. >> Some of the portable antenna's can make loaded dipoles or verticals, which would operate fairly well without a ground plane. Another option might be a magnetic loop (which doesn't care much about "ground" per se. >> It is affected by near-by conductors, tunes very narrowly, and is big (compared to a mobile vertical). So, whatever you choose, it's all some sort of compromise. >> >> kurtt WB9FMC >> >>>> On 6/8/2020 3:47 PM, Peter Kaletsch wrote: >>> Hello fellows; >>> >>> You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. >>> >>> For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. >>> >>> A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. >>> >>> So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? >>> >>> But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. >>> >>> I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? >>> >>> I am very grateful for every tip and every help - also to >>> pkaletsch at kaletsch-gmbh.de >>> >>> Thanks in advance >>> >>> Peter - DL1MDZ >>> >>> >>> ________________________________ >>> Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: >>> +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: >>> Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email >>> list: http://www.qsl.net/donate.html Message delivered to >>> kurtt at pinrod.com >> ________________________________ >> Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: >> +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: >> Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email >> list: http://www.qsl.net/donate.html Message delivered to >> w2xj at w2xj.net > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: > +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From PKaletsch at kaletsch-gmbh.de Tue Jun 9 16:29:01 2020 From: PKaletsch at kaletsch-gmbh.de (Peter Kaletsch) Date: Tue, 9 Jun 2020 20:29:01 +0000 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <3710e4dc-f569-d4cc-3105-d2a16df4a44f@gmx.net> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> <3710e4dc-f569-d4cc-3105-d2a16df4a44f@gmx.net> Message-ID: <9CD18F7BAB72E447987F465BD087D603DBE3883D@SRV-SBS1.kaletsch.local> Hi Gernot! You pointed the problem out! I have done really a lot of QRP work (DXCC, all continents) landside and of course I will start with low power on board. Many thanks for your advice to the "Rothhammel". I did not know, that marine antennas are a theme there, but I will have a look into for sure! Best regards Peter -----Urspr?ngliche Nachricht----- Von: gt-i at gmx.net [mailto:gt-i at gmx.net] Gesendet: Dienstag, 9. Juni 2020 22:21 An: Peter Kaletsch ; elecraft at mailman.qth.net Betreff: Re: [Elecraft] K3 working on motorboats - possible Hello Peter, I think it depends on your willingnes to sacrify the shape of your boat. If you want to get heard anywhere then you either need a long vertical plus good ground as mentioned already, or a dipole as high above sea level as possible. The dipole may be sloped but either the feedpoint needs to be elevated or the ends of the wire. I have operated both configurations near fresh water with kind of satisfaction (~500km on 7/14 MHz are possible on 10Watts) , but not yet on a boat. The Rothammel also mentions "Marineantennen" and discusses the grounding and antenna suggestions. Seems like an interesting experiment, hope you get on the air soon! 73 Gernot DF5RF BTW, you can use www.deepl.com for a quick translation to German: "Ich denke, es h?ngt von Ihrer Bereitschaft ab, die Form Ihres Bootes zu opfern. Wenn Sie irgendwo geh?rt werden wollen, dann brauchen Sie entweder eine lange Vertikale plus guten Boden, wie bereits erw?hnt, oder einen Dipol so hoch ?ber dem Meeresspiegel wie m?glich. Der Dipol kann geneigt sein, aber entweder der Speisepunkt oder die Drahtenden m?ssen erh?ht sein. Ich habe beide Konfigurationen in der N?he von S??wasser mit einer gewissen Befriedigung betrieben (~500km auf 7/14 MHz sind bei 10Watt m?glich), aber noch nicht auf einem Boot. Der Rothammel erw?hnt auch "Marineantennen" und bespricht die Erdung und Antennenvorschl?ge. Scheint ein interessantes Experiment zu sein, Ich hoffe, Sie gehen bald auf Sendung! ?bersetzt mit www.DeepL.com/Translator (kostenlose Version)" Am 08.06.2020 um 22:47 schrieb Peter Kaletsch: > Hello fellows; > > You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > > For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > > A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > > So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > > But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > > I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > > I am very grateful for every tip and every help - also to > pkaletsch at kaletsch-gmbh.de > > Thanks in advance > > Peter - DL1MDZ > > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: > +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to gt-i at gmx.net ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. From Lyn at LNAINC.com Tue Jun 9 16:42:03 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 9 Jun 2020 15:42:03 -0500 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: References: Message-ID: <019b01d63e9e$6edf4850$4c9dd8f0$@LNAINC.com> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). In Windows 10, search "Startup Apps." 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint Sent: Tuesday, June 09, 2020 1:45 PM To: elecraft at mailman.qth.net Subject: [Elecraft] KAT500 Remote software and KPA500 remote software Can these remote software's be in host mode on startup? I run a remote and would like to have them connect to the hardware and be in host mode on boot of the computer. Right now I just log on remotely and start each one as needed. Thanks, Gordon - N1MGO ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From jim at audiosystemsgroup.com Tue Jun 9 16:42:00 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 9 Jun 2020 13:42:00 -0700 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <3710e4dc-f569-d4cc-3105-d2a16df4a44f@gmx.net> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> <3710e4dc-f569-d4cc-3105-d2a16df4a44f@gmx.net> Message-ID: On 6/9/2020 1:21 PM, gt-i at gmx.net wrote: > anywhere then you either need a long vertical plus good ground as > mentioned already WRONG. An end-fed wire needs a COUNTERPOISE, not a connection to mother earth. A counterpoise is a low resistance conductor that provides a return for the current and the field produced by the "intentional" part of the antenna, and the counterpoise IS a part of the antenna. Salt water IS an effective counterpoise because it is a good conductor; fresh water is NOT, because it is NOT a good conductor, so it burns transmitter power. Likewise, a ground rod is a lousy counterpoise, because the earth is a big resistor, and can easily burn much more than half the transmitter's power. Radials serve as both a counterpoise and a shield ("screen" in British English) -- they shield the field from lossy earth AND serve as a return for the current and the field. 73, Jim K9YC From dxdx at optonline.net Tue Jun 9 16:49:52 2020 From: dxdx at optonline.net (Tony) Date: Tue, 9 Jun 2020 16:49:52 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question Message-ID: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> All: I have a follow-up question regarding balanced mics and unbalanced connections. I'm about to connect a balanced dynamic microphone (Heil PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono connection. One recommendation was to connect XLR pin #2 mic (+) to the tip of the 1/8" jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or ground is left floating with no connection. A 1/8" mono jack was recommended for this setup. The other recommendation was to connect pin #2 to the tip and pin #1 and #3 to the sleeve of the 1/8" jack. It was also suggested that I can use either a 1/8" mono or a stereo TRS jack in both cases. So which is correct? Tony -K2MO From alorona at sbcglobal.net Tue Jun 9 16:55:33 2020 From: alorona at sbcglobal.net (Al Lorona) Date: Tue, 9 Jun 2020 20:55:33 +0000 (UTC) Subject: [Elecraft] CW rise time setting In-Reply-To: <6bb63a0f-cd79-10c5-b550-5dc6fb2ca706@foothill.net> References: <171845577.1780813.1591726058809@mail.yahoo.com> <6bb63a0f-cd79-10c5-b550-5dc6fb2ca706@foothill.net> Message-ID: <1447544333.1914190.1591736133334@mail.yahoo.com> I used: 1/(1+exp(-x)) where x = the pulse train. I then modulated a 7 MHz carrier with the result (although the results don't care what the RF frequency is, of course). Al? W6LX >>>Which sigmoid function did you model, Al? From plascell at gmail.com Tue Jun 9 16:58:10 2020 From: plascell at gmail.com (Pete Lascell) Date: Tue, 9 Jun 2020 16:58:10 -0400 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE3883D@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> <3710e4dc-f569-d4cc-3105-d2a16df4a44f@gmx.net> <9CD18F7BAB72E447987F465BD087D603DBE3883D@SRV-SBS1.kaletsch.local> Message-ID: <1UWB3FoCzk.Na6eBa21Ybg@pete-pc> An inexpensive antenna to try is MFJ-2240 Mini-Dipole for 40 meters for $70. It is made with two hamsticks and appropriate mount that mounts the two whips butt to butt with coax connection. There is also models for other bands. https://mfjenterprises.com/products/mfj-2240 Mount as high as practical, dipole will be horizontal and about 16' long. Pete W4WWQ ----- Original Message ----- From: Peter Kaletsch To: , Sent: 6/9/2020 4:29:01 PM Subject: Re: [Elecraft] K3 working on motorboats - possible ________________________________________________________________________________ Hi Gernot! You pointed the problem out! I have done really a lot of QRP work (DXCC, all continents) landside and of course I will start with low power on board. Many thanks for your advice to the "Rothhammel". I did not know, that marine antennas are a theme there, but I will have a look into for sure! Best regards Peter -----Urspr?ngliche Nachricht----- Von: gt-i at gmx.net [mailto:gt-i at gmx.net] Gesendet: Dienstag, 9. Juni 2020 22:21 An: Peter Kaletsch ; elecraft at mailman.qth.net Betreff: Re: [Elecraft] K3 working on motorboats - possible Hello Peter, I think it depends on your willingnes to sacrify the shape of your boat. If you want to get heard anywhere then you either need a long vertical plus good ground as mentioned already, or a dipole as high above sea level as possible. The dipole may be sloped but either the feedpoint needs to be elevated or the ends of the wire. I have operated both configurations near fresh water with kind of satisfaction (~500km on 7/14 MHz are possible on 10Watts) , but not yet on a boat. The Rothammel also mentions "Marineantennen" and discusses the grounding and antenna suggestions. Seems like an interesting experiment, hope you get on the air soon! 73 Gernot DF5RF BTW, you can use www.deepl.com for a quick translation to German: "Ich denke, es h?ngt von Ihrer Bereitschaft ab, die Form Ihres Bootes zu opfern. Wenn Sie irgendwo geh?rt werden wollen, dann brauchen Sie entweder eine lange Vertikale plus guten Boden, wie bereits erw?hnt, oder einen Dipol so hoch ?ber dem Meeresspiegel wie m?glich. Der Dipol kann geneigt sein, aber entweder der Speisepunkt oder die Drahtenden m?ssen erh?ht sein. Ich habe beide Konfigurationen in der N?he von S??wasser mit einer gewissen Befriedigung betrieben (~500km auf 7/14 MHz sind bei 10Watt m?glich), aber noch nicht auf einem Boot. Der Rothammel erw?hnt auch "Marineantennen" und bespricht die Erdung und Antennenvorschl?ge. Scheint ein interessantes Experiment zu sein, Ich hoffe, Sie gehen bald auf Sendung! ?bersetzt mit www.DeepL.com/Translator (kostenlose Version)" Am 08.06.2020 um 22:47 schrieb Peter Kaletsch: > Hello fellows; > > You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. > > For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. > > A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. > > So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? > > But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. > > I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? > > I am very grateful for every tip and every help - also to > pkaletsch at kaletsch-gmbh.de > > Thanks in advance > > Peter - DL1MDZ > > > ________________________________ > Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: > +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: > Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to gt-i at gmx.net ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to plascell at gmail.com From Lyn at LNAINC.com Tue Jun 9 17:07:08 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 9 Jun 2020 16:07:08 -0500 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> Message-ID: <01b101d63ea1$efe976c0$cfbc6440$@LNAINC.com> Peter - Having had many years' experience in both boating and mobile operation, my choice would depend on where the antenna will be mounted and how fast your boat is. My last boat, a 32' Sea Ray cruiser, had a Radar Arch. Of course it was all fiberglass, but it was possible to get inside and line it with a heavy copper "foil" material. Then add an NMO type mount thru the arch and install a mobile Hustler-type antenna. You will have to change resonators for each band, but the size and cost will be manageable ... as will the aesthetics. It always worked well for me on fresh water. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Peter Kaletsch Sent: Monday, June 08, 2020 3:47 PM To: elecraft at mailman.qth.net Subject: [Elecraft] K3 working on motorboats - possible Hello fellows; You are my last hope as I cannot imagine that I am the only one in the world who wants to try that. For many months I have been trying in vain to get tips on how to operate a K3 well on a small 13 meter motor yacht. I am talking about fresh water usage (Lake Garda in Italy), not salt water, and of a GFK built boat. A dipole is eliminated, it is not a sailing boat. I thought of using a Tarheel Antenna, but the manufacturer advised me against it. So normal, shortened mobile antennas, mounted on the device carrier, where also the antenna for marine radio is located, should point the way ...? But how do I get a reasonably effective earth? I read a lot of negative things about ground plates - fast growth, the hull has to be pierced. I have already considered laying radials from the antenna base below deck in the invisible area, but will this work...? I am very grateful for every tip and every help - also to pkaletsch at kaletsch-gmbh.de Thanks in advance Peter - DL1MDZ ________________________________ Peter Kaletsch GmbH | F?rstenrieder Stra?e 275 | 81377 M?nchen | Tel: +49 (0) 89 / 89 60 93 - 0 | Fax: +49 (0) 89 / 89 60 93 - 99 | info at kaletsch-gmbh.de | Handelsregisternummer HRB 108093 | Amtsgericht Muenchen | Steuer-Nr: 143/170/40017 | Gesch?ftsf?hrer: Peter Kaletsch | Sitz der Gesellschaft: M?nchen | Hinweis / reference: Die Inhalte dieser Nachricht d?rfen nur f?r die beabsichtigten Zwecke verwendet werden. The content of this Message may only be used for the intended purposes. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From lboekeloo at gmail.com Tue Jun 9 17:25:30 2020 From: lboekeloo at gmail.com (Larry Boekeloo) Date: Tue, 9 Jun 2020 17:25:30 -0400 Subject: [Elecraft] K3 Macro Questions Message-ID: I'm missing something.... Here are my two macros MN053,DN;DN;MN255: MN053;UP;UP;MN255; One brings the audio from the front microphone jack and the other brings the audio from Line In in the back for FT8. If I run the macro editor manually, the macros work. If I execute them from the PF1 and PF2 keys, they bring up the MIC SEL menu and there they sit. Any ideas? Thanks. Larry, KN8N Kalamazoo, Michigan From donwilh at embarqmail.com Tue Jun 9 17:29:03 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 9 Jun 2020 17:29:03 -0400 Subject: [Elecraft] zero-beating a KX1 In-Reply-To: <20200608233440227@smtp.email-protect.gosecure.net> References: <20200608233440227@smtp.email-protect.gosecure.net> Message-ID: <1e27aaff-19c9-c34e-b7b9-3afe569b5819@embarqmail.com> Tom Hammond N0SS's (SK) website is mostly intact thanks to the Mid Missouri Amateur Radio Club. It is a valuable resource. You can find the files for the K1 and KX1 CW Tuning Indicator (SMD version) at http://www.mmccs.com/mmarc/n0ss/index_k1.html. If you have capability to etch your own boards, Tom recorded full size images. You might also try emailing Fred at FAR Circuits to see if he can create the boards. I believe Tom may have used him as his board supplier. 73, Don W3FPR On 6/8/2020 7:33 PM, Frederick Dwight wrote: > If you do a google search on KX1 zero beat indicator or cw zero beat indicator you will see several circuits demonstrated. Some like the one which uses the LM567 (non SMT) part and had > a white LED seemed to be good, much less than 100 Hz BW and had the schematic, but some others seemed to be much too broad, perhaps hundreds of Hz wide. My circuit > needed quite a bit of audio drive, so rigged up a small 500-500 CT audio transformer and used the primary as a autotransformer to double the audio voltage > to the circuit which did not change the earphone volume but enabled the detector to operate without opening up the audio gain too much on any of my rigs. > Good Luck Rick KL7CW > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donwilh at embarqmail.com > From wunder at wunderwood.org Tue Jun 9 17:35:17 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Tue, 9 Jun 2020 14:35:17 -0700 Subject: [Elecraft] zero-beating a KX1 In-Reply-To: <1e27aaff-19c9-c34e-b7b9-3afe569b5819@embarqmail.com> References: <20200608233440227@smtp.email-protect.gosecure.net> <1e27aaff-19c9-c34e-b7b9-3afe569b5819@embarqmail.com> Message-ID: <7D0DC675-A75D-43D8-8CE0-65B07B88F78C@wunderwood.org> If getting to exactly the sidetone frequency works, an instrument tuner box (or app) might do the job. I don?t know enough to recommend one, but I see some devices for $30 or less and some apps ranging from free to a few dollars. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 9, 2020, at 2:29 PM, Don Wilhelm wrote: > > Tom Hammond N0SS's (SK) website is mostly intact thanks to the Mid Missouri Amateur Radio Club. It is a valuable resource. > > You can find the files for the K1 and KX1 CW Tuning Indicator (SMD version) at http://www.mmccs.com/mmarc/n0ss/index_k1.html. > > If you have capability to etch your own boards, Tom recorded full size images. You might also try emailing Fred at FAR Circuits to see if he can create the boards. I believe Tom may have used him as his board supplier. > > 73, > Don W3FPR > > On 6/8/2020 7:33 PM, Frederick Dwight wrote: >> If you do a google search on KX1 zero beat indicator or cw zero beat indicator you will see several circuits demonstrated. Some like the one which uses the LM567 (non SMT) part and had >> a white LED seemed to be good, much less than 100 Hz BW and had the schematic, but some others seemed to be much too broad, perhaps hundreds of Hz wide. My circuit >> needed quite a bit of audio drive, so rigged up a small 500-500 CT audio transformer and used the primary as a autotransformer to double the audio voltage >> to the circuit which did not change the earphone volume but enabled the detector to operate without opening up the audio gain too much on any of my rigs. >> Good Luck Rick KL7CW >> Sent from Mail for Windows 10 >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to donwilh at embarqmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From jackbrindle at me.com Tue Jun 9 17:42:38 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 9 Jun 2020 14:42:38 -0700 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <019b01d63e9e$6edf4850$4c9dd8f0$@LNAINC.com> References: <019b01d63e9e$6edf4850$4c9dd8f0$@LNAINC.com> Message-ID: <275E3D85-EF9B-4965-BC23-EEC827155491@me.com> Are you referring to front or rear panel power? The K3 Utility can certainly power on a KPA500 if the rear panel switch is on. If that switch is off, it must be turned on before the front panel switch (or remote power-on) works. Now if you have a big relay in the power line to the KPA, it needs to be enabled as well. Setting up remote stations is a skill. There are many ways to do it, and each need to be evaluated to get it done the way _you_ want. By the way, to the original poster - if you are using a Mac, just add the two utilities to the user?s "Login Items? list in the User?s & Groups System Preferences pane. You just have to make sure that user is started up when the system powers up. There are other ways to do this, but by far that is the easiest. 73! Jack, W6FB > On Jun 9, 2020, at 1:42 PM, Lyn Norstad wrote: > > If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. > > To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). > > In Windows 10, search "Startup Apps." > > 73 > Lyn, W0LEN > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net ] On Behalf Of Gordon LaPoint > Sent: Tuesday, June 09, 2020 1:45 PM > To: elecraft at mailman.qth.net > Subject: [Elecraft] KAT500 Remote software and KPA500 remote software > > Can these remote software's be in host mode on startup? I run a remote > and would like to have them connect to the hardware and be in host mode > on boot of the computer. Right now I just log on remotely and start > each one as needed. > > Thanks, > > Gordon - N1MGO > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lyn at lnainc.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From a.durbin at msn.com Tue Jun 9 17:52:03 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 9 Jun 2020 21:52:03 +0000 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software Message-ID: "But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on" That may be a bit misleading. Depends on what you mean by "powered on". I consider the KPA500 to have 4 states: Not powered Powered but off STBY OPER The utility can be connected to KPA500 in the "powered but off " state and the KPA500 will accept a limited subset of serial commands. One of those commands, P, will turn it on. P can be sent with the Utility "command tester and will change the KPA500 state to STBY. At this point all the normal Utility functions work. Andy, k3wyc From lists at subich.com Tue Jun 9 17:54:05 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Tue, 9 Jun 2020 17:54:05 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> Message-ID: > So which is correct? They are electrically equivalent. Pin 2 of the XLR connection is Mic+ Pin 3 of the XLR connection is Mic- Pin 1 of the XLR connection is the cable shield (ground). Mic audio is present between pins 2 and 1. Pin 1 is nothing more than a shield and should be independently connected to the *chassis at the jack*. Good quality XLR cables use a *TWISTED PAIR* for pins 1 and 2. That twisted pair is shelf shielding - particularly good for rejecting hum. Connecting a shield in parallel with the wire for pin 3 "unbalances" the twisted pair and makes it much more susceptible to hum and RFI - particularly when the shell of the 3.5mm plug/jack is not tied to the chassis/case of the transceiver. 73, ... Joe, W4TV On 2020-06-09 4:49 PM, Tony wrote: > All: > > I have a follow-up question regarding balanced mics and unbalanced > connections. I'm about to connect a balanced dynamic microphone (Heil > PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono > connection. > > One recommendation was to connect XLR pin #2 mic (+) to the tip of the > 1/8" jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or > ground is left floating with no connection. A 1/8" mono jack was > recommended for this setup. > > The other recommendation was to connect pin #2 to the tip and pin #1 and > #3 to the sleeve of the 1/8" jack. It was also suggested that I can use > either a 1/8" mono or a stereo TRS jack in both cases. > > So which is correct? > > Tony -K2MO > From a.durbin at msn.com Tue Jun 9 18:01:23 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 9 Jun 2020 22:01:23 +0000 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: References: Message-ID: "P can be sent with the Utility "command tester" or press "ON" on the utility "Operate" page. BTW - My first reply overlapped with Jack's. In case of conflict believe him not me. Andy, k3wyc From k3ndm at comcast.net Tue Jun 9 18:13:19 2020 From: k3ndm at comcast.net (Barry) Date: Tue, 09 Jun 2020 22:13:19 +0000 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: Message-ID: Full size verticals are hard to do on small power boats. And elevated grounds are also hard. Water grounds are usually the most practical, but fresh water is not great. I counsel inverted Vs as they are ground independent. On power boats that too is a tough trick, but it can be done, depending on size of the boat. A 40 meter dipole can be made by bending the ends and can be fed with coax through a 4:1 current balun if the run to the radio is not too great. It will require a fiberglass mast bracketed to the fly bridge. There are several suppliers of good, strong push up masts available; I wouldn't go more than about 25 feet which should put the feed about 31 or so feet over the water,m close to a 1/4 wave on 40. This arrangement will allow all band operation above 40 with a K3 as the tuner is just plain magic. 73, Barry K3NDM ------ Original Message ------ From: "Robert Sands" To: "Frank C Richards" Cc: "Elecraft Discussion List" Sent: 6/9/2020 3:22:27 PM Subject: Re: [Elecraft] K3 on motorboat. >Verticals require more attention to ground but the goal should be to >increase the antenna current, thus increasing radiated signal. ground into >water seems like a waste but has DC grounding value. I use hung vertical >dipoles (20 and 15) with no need for ground and they work amazingly well. I >have tried letting wire or zinc ribbon strips drop into saltwater to >ground verticals and there is no value I can detect over something simpler, >like tying to existing structures or running a above water wire >counterpoise. Vertical dipoles require no Rf ground and propagate at low >angle and high efficiency. Far effects over water are what counts, more >than grounding, except in verticals to get higher antenna current. >K7VO > >On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards wrote: > >> Having been in the marine electronics business I was able to successfully >> install many HF radios on boats from large steel commercial fishing boats >> to a small 28 ft fiberglass fishing boat and sailboats. >> Anything metal , engine, fuel tanks,rudder posts,thru hulls, morse control >> cables,intercoolers outside of the hull,rub rail sections jumpered together >> to form one continuous loop. Dynaplates help but will not work well as the >> only source of ground. I once saw a carbon brush riding thru spring tension >> on a prop shaft, tying the prop to ground. >> It can be tricky as sometimes you get ground loops and you must be aware >> of currents that can cause electrolysis. >> For the antenna we primarily used a 23 ft whip, sometimes on large vessels >> a longwire. >> This was before synthesized radios and autouners. My favorite radio was >> the >> Drake TRM which had a built in manual tuner and a 50 ohm output if you >> wanted >> to use a trapped vertical. >> On commercial fishing boats you had to leave the dock so that the >> outriggers >> could be lowered and trawl doors put in the water as this changed the >> tuning >> quite a bit from being at the dock. Interestingly enough I think the >> toughest >> time I had tuning was on an 85 ft steel shrimp boat even with all that >> metal. >> . >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k7voradio at gmail.com >> >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to k3ndm at comcast.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From ja1nlx0205 at my.email.ne.jp Tue Jun 9 18:15:34 2020 From: ja1nlx0205 at my.email.ne.jp (Yoshida Akira) Date: Wed, 10 Jun 2020 07:15:34 +0900 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> References: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> Message-ID: <8f4850b6-8b37-f05e-9903-65ff5480b576@my.email.ne.jp> Hi all Thanks for more suggestions, however I am not happy. I noticed this a several times yesterday when transmitting FT8 with 50W. I checked DX cable and connectors. It looks OK. I look at voltage, current and PA Temp with internal meter. I do not notice any significant jump just before shut down. It is better for me to send K3/100 to JA dealer who checked everything, sometimes replaced parts before. BTW: my K3/100 s/n 00060? arrived on 2007/12?? I still like this radio best. Thanks 73 On 2020/06/09 11:33, Yoshida Akira wrote: > Hi all > > Thanks for suggestions. All look OK to me. > > Power supply is Powerwerx ss-30DV. I do not use Powerpole connector > in the front panel, instead use terminal in the back panel. > > I use this power supply for another TRX also and have never noticed > the problem. > > 73 > > On 2020/06/09 9:00, Yoshida Akira wrote: >> Hi all >> >> I have never seen this for many years, however I recently noticed twice >> when transmitting FT8 with 100W. No alarm and error message. >> When I simply push POWER button in front panel then it turns ON again. >> >> PA temp, DC voltage and DC current looks good. I do not believe RFI >> cause this problem. >> >> Any idea ? >> -- 73 de aki JA1NLX From jim at audiosystemsgroup.com Tue Jun 9 18:18:16 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 9 Jun 2020 15:18:16 -0700 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> Message-ID: <052783a5-8c36-6f06-b935-fbe1d75f2ef4@audiosystemsgroup.com> Correcting Joe's typo, Mic audio is present between pins 2 and 3, NOT between 2 and 1. 73, Jim K9YC On 6/9/2020 2:54 PM, Joe Subich, W4TV wrote: > > > So which is correct? > > They are electrically equivalent. > > Pin 2 of the XLR connection is Mic+ > Pin 3 of the XLR connection is Mic- > Pin 1 of the XLR connection is the cable shield (ground). > > Mic audio is present between pins 2 and 1. > > Pin 1 is nothing more than a shield and should be independently > connected to the *chassis at the jack*. > > Good quality XLR cables use a *TWISTED PAIR* for pins 1 and 2. > That twisted pair is shelf shielding - particularly good for > rejecting hum. Connecting a shield in parallel with the wire > for pin 3 "unbalances" the twisted pair and makes it much > more susceptible to hum and RFI - particularly when the shell > of the 3.5mm plug/jack is not tied to the chassis/case of the > transceiver. From jim at audiosystemsgroup.com Tue Jun 9 18:24:37 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 9 Jun 2020 15:24:37 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: Message-ID: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> On 6/9/2020 3:13 PM, Barry wrote: > I counsel inverted Vs as they are ground independent. Not really -- the earth in the near field is lossy (including fresh water) and in the reflection from earth in the far field combines with the direct signal to produce the vertical pattern. Almost any horizontal antenna for 40M or lower that we can rig on a small boat will be a low one, so will be a high angle antenna, over fresh water, a lossy one. In general, verticals are better than than horizontal antennas over water, fresh or salt, because of the far field reflection, as long as a suitable counterpoise is provided. 73, Jim K9YC From W2xj at w2xj.net Tue Jun 9 18:32:08 2020 From: W2xj at w2xj.net (W2xj) Date: Tue, 9 Jun 2020 18:32:08 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: Message-ID: <4792680E-BCCE-48B6-924E-E31A215FF6BD@w2xj.net> aesthetics? Sent from my iPad > On Jun 9, 2020, at 6:14 PM, Barry wrote: > > ?Full size verticals are hard to do on small power boats. And elevated grounds are also hard. Water grounds are usually the most practical, but fresh water is not great. I counsel inverted Vs as they are ground independent. On power boats that too is a tough trick, but it can be done, depending on size of the boat. A 40 meter dipole can be made by bending the ends and can be fed with coax through a 4:1 current balun if the run to the radio is not too great. It will require a fiberglass mast bracketed to the fly bridge. There are several suppliers of good, strong push up masts available; I wouldn't go more than about 25 feet which should put the feed about 31 or so feet over the water,m close to a 1/4 wave on 40. This arrangement will allow all band operation above 40 with a K3 as the tuner is just plain magic. > > 73, > Barry > K3NDM > > ------ Original Message ------ > From: "Robert Sands" > To: "Frank C Richards" > Cc: "Elecraft Discussion List" > Sent: 6/9/2020 3:22:27 PM > Subject: Re: [Elecraft] K3 on motorboat. > >> Verticals require more attention to ground but the goal should be to >> increase the antenna current, thus increasing radiated signal. ground into >> water seems like a waste but has DC grounding value. I use hung vertical >> dipoles (20 and 15) with no need for ground and they work amazingly well. I >> have tried letting wire or zinc ribbon strips drop into saltwater to >> ground verticals and there is no value I can detect over something simpler, >> like tying to existing structures or running a above water wire >> counterpoise. Vertical dipoles require no Rf ground and propagate at low >> angle and high efficiency. Far effects over water are what counts, more >> than grounding, except in verticals to get higher antenna current. >> K7VO >> >>> On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards wrote: >>> >>> Having been in the marine electronics business I was able to successfully >>> install many HF radios on boats from large steel commercial fishing boats > From k3ndm at comcast.net Tue Jun 9 18:44:46 2020 From: k3ndm at comcast.net (Barry) Date: Tue, 09 Jun 2020 22:44:46 +0000 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <4792680E-BCCE-48B6-924E-E31A215FF6BD@w2xj.net> References: <4792680E-BCCE-48B6-924E-E31A215FF6BD@w2xj.net> Message-ID: This will look like the 23' HF whip used by boaters and the wire can be barely seen. I can't see how this would look much worse than what boaters already do for HF except this will be ground independent. ------ Original Message ------ From: "W2xj" To: "Barry" Cc: "Robert Sands" ; "Frank C Richards" ; "Elecraft Discussion List" Sent: 6/9/2020 6:32:08 PM Subject: Re: [Elecraft] K3 on motorboat. >aesthetics? > >Sent from my iPad > >> On Jun 9, 2020, at 6:14 PM, Barry wrote: >> >> ?Full size verticals are hard to do on small power boats. And elevated grounds are also hard. Water grounds are usually the most practical, but fresh water is not great. I counsel inverted Vs as they are ground independent. On power boats that too is a tough trick, but it can be done, depending on size of the boat. A 40 meter dipole can be made by bending the ends and can be fed with coax through a 4:1 current balun if the run to the radio is not too great. It will require a fiberglass mast bracketed to the fly bridge. There are several suppliers of good, strong push up masts available; I wouldn't go more than about 25 feet which should put the feed about 31 or so feet over the water,m close to a 1/4 wave on 40. This arrangement will allow all band operation above 40 with a K3 as the tuner is just plain magic. >> >> 73, >> Barry >> K3NDM >> >> ------ Original Message ------ >> From: "Robert Sands" >> To: "Frank C Richards" >> Cc: "Elecraft Discussion List" >> Sent: 6/9/2020 3:22:27 PM >> Subject: Re: [Elecraft] K3 on motorboat. >> >>> Verticals require more attention to ground but the goal should be to >>> increase the antenna current, thus increasing radiated signal. ground into >>> water seems like a waste but has DC grounding value. I use hung vertical >>> dipoles (20 and 15) with no need for ground and they work amazingly well. I >>> have tried letting wire or zinc ribbon strips drop into saltwater to >>> ground verticals and there is no value I can detect over something simpler, >>> like tying to existing structures or running a above water wire >>> counterpoise. Vertical dipoles require no Rf ground and propagate at low >>> angle and high efficiency. Far effects over water are what counts, more >>> than grounding, except in verticals to get higher antenna current. >>> K7VO >>> >>>> On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards wrote: >>>> >>>> Having been in the marine electronics business I was able to successfully >>>> install many HF radios on boats from large steel commercial fishing boats >> > -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From W2xj at w2xj.net Tue Jun 9 18:54:39 2020 From: W2xj at w2xj.net (W2xj) Date: Tue, 9 Jun 2020 18:54:39 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: Message-ID: <3EB238BF-7E3A-4723-90D3-C14955E53523@w2xj.net> check with his wife. Sent from my iPad > On Jun 9, 2020, at 6:44 PM, Barry wrote: > > ?This will look like the 23' HF whip used by boaters and the wire can be barely seen. I can't see how this would look much worse than what boaters already do for HF except this will be ground independent. > > ------ Original Message ------ > From: "W2xj" > To: "Barry" > Cc: "Robert Sands" ; "Frank C Richards" ; "Elecraft Discussion List" > Sent: 6/9/2020 6:32:08 PM > Subject: Re: [Elecraft] K3 on motorboat. > >> aesthetics? >> >> Sent from my iPad >> >>>> On Jun 9, 2020, at 6:14 PM, Barry wrote: >>> >>> ?Full size verticals are hard to do on small power boats. And elevated grounds are also hard. Water grounds are usually the most practical, but fresh water is not great. I counsel inverted Vs as they are ground independent. On power boats that too is a tough trick, but it can be done, depending on size of the boat. A 40 meter dipole can be made by bending the ends and can be fed with coax through a 4:1 current balun if the run to the radio is not too great. It will require a fiberglass mast bracketed to the fly bridge. There are several suppliers of good, strong push up masts available; I wouldn't go more than about 25 feet which should put the feed about 31 or so feet over the water,m close to a 1/4 wave on 40. This arrangement will allow all band operation above 40 with a K3 as the tuner is just plain magic. >>> >>> 73, >>> Barry >>> K3NDM >>> >>> ------ Original Message ------ >>> From: "Robert Sands" >>> To: "Frank C Richards" >>> Cc: "Elecraft Discussion List" >>> Sent: 6/9/2020 3:22:27 PM >>> Subject: Re: [Elecraft] K3 on motorboat. >>> >>>> Verticals require more attention to ground but the goal should be to >>>> increase the antenna current, thus increasing radiated signal. ground into >>>> water seems like a waste but has DC grounding value. I use hung vertical >>>> dipoles (20 and 15) with no need for ground and they work amazingly well. I >>>> have tried letting wire or zinc ribbon strips drop into saltwater to >>>> ground verticals and there is no value I can detect over something simpler, >>>> like tying to existing structures or running a above water wire >>>> counterpoise. Vertical dipoles require no Rf ground and propagate at low >>>> angle and high efficiency. Far effects over water are what counts, more >>>> than grounding, except in verticals to get higher antenna current. >>>> K7VO >>>> >>>>> On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards wrote: >>>>> >>>>> Having been in the marine electronics business I was able to successfully >>>>> install many HF radios on boats from large steel commercial fishing boats >>> >> > > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > From barrylazar2 at gmail.com Tue Jun 9 18:54:56 2020 From: barrylazar2 at gmail.com (Barry) Date: Tue, 09 Jun 2020 22:54:56 +0000 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> Message-ID: First, electrical engineering is not a science, it's an art as compromises must be made. Fresh water is a terrible ground, so using a ground independent antenna is a compromise. Yes, a 1/4 wave antenna over ground will not be great for DX, but does allowm entering the 40 meter nets. Having said that, the antenna will be a 1/2 Wave on 20; that will lower the main lobe. You may not get the re-enforcement over fresh water, but it's more radiated power than using a vertical with a very poor ground system. We can debate the phenomena, but no mater a compromise is going to be required. Like I said at the top, EE is an art and not science and this artist has chosen to approach a solution swet this way. I'm quite sure there are other artists who may have other compromises. 73, Barry K3NDM ------ Original Message ------ From: "Jim Brown" To: elecraft at mailman.qth.net Sent: 6/9/2020 6:24:37 PM Subject: Re: [Elecraft] K3 on motorboat. >On 6/9/2020 3:13 PM, Barry wrote: >>I counsel inverted Vs as they are ground independent. > >Not really -- the earth in the near field is lossy (including fresh water) and in the reflection from earth in the far field combines with the direct signal to produce the vertical pattern. Almost any horizontal antenna for 40M or lower that we can rig on a small boat will be a low one, so will be a high angle antenna, over fresh water, a lossy one. In general, verticals are better than than horizontal antennas over water, fresh or salt, because of the far field reflection, as long as a suitable counterpoise is provided. > >73, Jim K9YC >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to k3ndm at comcast.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From kg7vq01 at gmail.com Tue Jun 9 19:02:46 2020 From: kg7vq01 at gmail.com (Russ Edelen) Date: Tue, 9 Jun 2020 17:02:46 -0600 Subject: [Elecraft] OT Bluetooth Serial adapters Message-ID: <23398352-e7e8-56f5-acf9-abe8af3d8ff7@gmail.com> Thanks for the comments. Yes, I am confused as the the advertised capabilities of the various models of adapters and tablets. Presently I use a Garmin nuvie 350 but would like to move to a larger display. What I have works and that alone may be sufficient. Some times the mind wanders into the what if. Russ KG7VQ From lboekeloo at gmail.com Tue Jun 9 19:21:04 2020 From: lboekeloo at gmail.com (Larry Boekeloo) Date: Tue, 9 Jun 2020 19:21:04 -0400 Subject: [Elecraft] K3 Macros Message-ID: Dick Dievendorff put me onto the fix for my Macro Key assignment. All is good! Thanks Dick. Larry, KN8N From mike.chowning at franciscan.org Tue Jun 9 19:27:05 2020 From: mike.chowning at franciscan.org (Michael Chowning) Date: Tue, 9 Jun 2020 19:27:05 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <4792680E-BCCE-48B6-924E-E31A215FF6BD@w2xj.net> References: <4792680E-BCCE-48B6-924E-E31A215FF6BD@w2xj.net> Message-ID: <0C877534-E329-4143-BA7E-FF1962334BB5@franciscan.org> Aesthetics, yes. Cost? Gulp! https://advancedhfsolutions.com/ Mike, N8TTR > On Jun 9, 2020, at 6:32 PM, W2xj wrote: > > aesthetics? > > Sent from my iPad > >> On Jun 9, 2020, at 6:14 PM, Barry wrote: >> >> ?Full size verticals are hard to do on small power boats. And elevated grounds are also hard. Water grounds are usually the most practical, but fresh water is not great. I counsel inverted Vs as they are ground independent. On power boats that too is a tough trick, but it can be done, depending on size of the boat. A 40 meter dipole can be made by bending the ends and can be fed with coax through a 4:1 current balun if the run to the radio is not too great. It will require a fiberglass mast bracketed to the fly bridge. There are several suppliers of good, strong push up masts available; I wouldn't go more than about 25 feet which should put the feed about 31 or so feet over the water,m close to a 1/4 wave on 40. This arrangement will allow all band operation above 40 with a K3 as the tuner is just plain magic. >> >> 73, >> Barry >> K3NDM >> >> ------ Original Message ------ >> From: "Robert Sands" >> To: "Frank C Richards" >> Cc: "Elecraft Discussion List" >> Sent: 6/9/2020 3:22:27 PM >> Subject: Re: [Elecraft] K3 on motorboat. >> >>> Verticals require more attention to ground but the goal should be to >>> increase the antenna current, thus increasing radiated signal. ground into >>> water seems like a waste but has DC grounding value. I use hung vertical >>> dipoles (20 and 15) with no need for ground and they work amazingly well. I >>> have tried letting wire or zinc ribbon strips drop into saltwater to >>> ground verticals and there is no value I can detect over something simpler, >>> like tying to existing structures or running a above water wire >>> counterpoise. Vertical dipoles require no Rf ground and propagate at low >>> angle and high efficiency. Far effects over water are what counts, more >>> than grounding, except in verticals to get higher antenna current. >>> K7VO >>> >>>> On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards wrote: >>>> >>>> Having been in the marine electronics business I was able to successfully >>>> install many HF radios on boats from large steel commercial fishing boats >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mike.chowning at franciscan.org > From k6dgw at foothill.net Tue Jun 9 19:46:50 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Tue, 9 Jun 2020 16:46:50 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <0C877534-E329-4143-BA7E-FF1962334BB5@franciscan.org> References: <4792680E-BCCE-48B6-924E-E31A215FF6BD@w2xj.net> <0C877534-E329-4143-BA7E-FF1962334BB5@franciscan.org> Message-ID: <569dc956-f6fa-debb-c511-e533d1858d06@foothill.net> Hmmm ... "Isotropic spherical?"? "Proven to broadcast over 4,000 miles with 1 watt?"? Actually, it looks like one of the driven elements of the Russian Duga ["Woodpecker"] antenna.? $6K+ seems a little steep. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/9/2020 4:27 PM, Michael Chowning wrote: > Aesthetics, yes. Cost? Gulp! > > https://advancedhfsolutions.com/ > > Mike, N8TTR > From lists at subich.com Tue Jun 9 19:47:45 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Tue, 9 Jun 2020 19:47:45 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> Message-ID: Correcting *ALL* the typos .... > So which is correct? They are electrically equivalent. Pin 2 of the XLR connection is Mic+ Pin 3 of the XLR connection is Mic- Pin 1 of the XLR connection is the cable shield (ground). Mic audio is present between pins 2 and 3. Pin 1 is nothing more than a shield and should be independently connected to the *chassis at the jack*. Good quality XLR cables use a *TWISTED PAIR* for pins 2 and 3. That twisted pair is shelf shielding - particularly good for rejecting hum. Connecting a shield in parallel with the wire for pin 3 "unbalances" the twisted pair and makes it much more susceptible to hum and RFI - particularly when the shell of the 3.5mm plug/jack is not tied to the chassis/case of the transceiver. 73, ... Joe, W4TV On 2020-06-09 4:49 PM, Tony wrote: > All: > > I have a follow-up question regarding balanced mics and unbalanced > connections. I'm about to connect a balanced dynamic microphone (Heil > PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono > connection. > > One recommendation was to connect XLR pin #2 mic (+) to the tip of the > 1/8" jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or > ground is left floating with no connection. A 1/8" mono jack was > recommended for this setup. > > The other recommendation was to connect pin #2 to the tip and pin #1 and > #3 to the sleeve of the 1/8" jack. It was also suggested that I can use > either a 1/8" mono or a stereo TRS jack in both cases. > > So which is correct? > > Tony -K2MO > From donwilh at embarqmail.com Tue Jun 9 20:14:28 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 9 Jun 2020 20:14:28 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> Message-ID: <5df853a6-8d9e-6045-e414-e8be4ba20a01@embarqmail.com> So --- make an adapter so that pins 2 and 3 are connected to the tip and ring of the mic jack, then add a one wire 'dongle' exiting from the XLR plug that is connected to XLR pin 1. Connect that wire to a screw on the chassis of the K3/K3S/KX2/KX3. Noise, hum and buzz are then conducted from the shield onto the "outside" of the radio enclosure where it should be - avoiding the "pin 1" problem that K9YC often refers to. For those not familiar with the "pin 1" problem, it is caused by the jacks in the transceiver (or other gear) being connected to the circuit board ground plane where it can couple into sensitive circuits and cause coupling problems. Proper bonding between enclosures following the path of audio or coax lines can minimize that problem by keeping some of the noise, hum and buzz mostly on the outside of the enclosure rather than injecting it into the circuits on the board ground plane. We did not have this problem when we mounted the jacks on the enclosure rather than mounting them on the boards, usually isolated from the outside of the enclosure. 73, Don W3FPR On 6/9/2020 7:47 PM, Joe Subich, W4TV wrote: > > Correcting *ALL* the typos .... > > >> So which is correct? > > They are electrically equivalent. > > Pin 2 of the XLR connection is Mic+ > Pin 3 of the XLR connection is Mic- > Pin 1 of the XLR connection is the cable shield (ground). > > Mic audio is present between pins 2 and 3. > > Pin 1 is nothing more than a shield and should be independently > connected to the *chassis at the jack*. > > Good quality XLR cables use a *TWISTED PAIR* for pins 2 and 3. > That twisted pair is shelf shielding - particularly good for > rejecting hum. Connecting a shield in parallel with the wire > for pin 3 "unbalances" the twisted pair and makes it much > more susceptible to hum and RFI - particularly when the shell > of the 3.5mm plug/jack is not tied to the chassis/case of the > transceiver. From josh at voodoolab.com Tue Jun 9 20:16:20 2020 From: josh at voodoolab.com (Josh Fiden) Date: Tue, 9 Jun 2020 17:16:20 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <0C877534-E329-4143-BA7E-FF1962334BB5@franciscan.org> References: <0C877534-E329-4143-BA7E-FF1962334BB5@franciscan.org> Message-ID: ?Performs Better Than Most 80 FT Antennas.? The 600W model is almost $10,000. That?s ridiculous. And offensive. How often is a sucker born? I hope not *this* often. 73, Josh W6XU Sent from my mobile device >> On Jun 9, 2020, at 4:27 PM, Michael Chowning wrote: > ?Aesthetics, yes. Cost? Gulp! > > https://advancedhfsolutions.com/ > > From w6jhb at me.com Tue Jun 9 20:20:54 2020 From: w6jhb at me.com (James Bennett) Date: Tue, 9 Jun 2020 17:20:54 -0700 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <8f4850b6-8b37-f05e-9903-65ff5480b576@my.email.ne.jp> References: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> <8f4850b6-8b37-f05e-9903-65ff5480b576@my.email.ne.jp> Message-ID: <99A6E8A9-19E0-43F9-B72B-70A4A7B90608@me.com> I have not completely followed this thread, but have you tried using a dummy load to see if the problem still happens? If it does, can you try a different coax between the K3 and the dummy load? 73, Jim / W6JHB > On Jun 9, 2020, at 3:15 PM, Yoshida Akira wrote: > > Hi all > > Thanks for more suggestions, however I am not happy. > I noticed this a several times yesterday when transmitting FT8 with 50W. > > I checked DX cable and connectors. It looks OK. I look at voltage, current and PA Temp > with internal meter. I do not notice any significant jump just before shut down. > > It is better for me to send K3/100 to JA dealer who checked everything, sometimes > replaced parts before. > > BTW: my K3/100 s/n 00060 arrived on 2007/12 I still like this radio best. > > Thanks > > 73 > > > On 2020/06/09 11:33, Yoshida Akira wrote: >> Hi all >> >> Thanks for suggestions. All look OK to me. >> >> Power supply is Powerwerx ss-30DV. I do not use Powerpole connector >> in the front panel, instead use terminal in the back panel. >> >> I use this power supply for another TRX also and have never noticed the problem. >> >> 73 >> >> On 2020/06/09 9:00, Yoshida Akira wrote: >>> Hi all >>> >>> I have never seen this for many years, however I recently noticed twice >>> when transmitting FT8 with 100W. No alarm and error message. >>> When I simply push POWER button in front panel then it turns ON again. >>> >>> PA temp, DC voltage and DC current looks good. I do not believe RFI >>> cause this problem. >>> >>> Any idea ? >>> > -- > 73 de aki > JA1NLX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6jhb at me.com From lists at subich.com Tue Jun 9 21:13:00 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Tue, 9 Jun 2020 21:13:00 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <5df853a6-8d9e-6045-e414-e8be4ba20a01@embarqmail.com> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <5df853a6-8d9e-6045-e414-e8be4ba20a01@embarqmail.com> Message-ID: On 2020-06-09 8:14 PM, Don Wilhelm wrote: > So --- make an adapter so that pins 2 and 3 are connected to the tip > and ring of the mic jack, No, no, no! The ring of the K3/K3S rear panel mic jack *IS FLOATING*. Pins 2 and 3 of the XLR *MUST BE* connected to tip and *SLEEVE*. 73, ... Joe, W4TV On 2020-06-09 8:14 PM, Don Wilhelm wrote: > So --- make an adapter so that pins 2 and 3 are connected to the tip and > ring of the mic jack, then add a one wire 'dongle' exiting from the XLR > plug that is connected to XLR pin 1.? Connect that wire to a screw on > the chassis of the K3/K3S/KX2/KX3. > > Noise, hum and buzz are? then conducted from the shield onto the > "outside" of the radio enclosure where it should be - avoiding the "pin > 1" problem that K9YC often refers to. > > For those not familiar with the "pin 1" problem, it is caused by the > jacks in the transceiver (or other gear) being connected to the circuit > board ground plane where it can couple into sensitive circuits and cause > coupling problems.? Proper bonding between enclosures following the path > of audio or coax lines can minimize that problem by keeping some of the > noise, hum and buzz mostly on the outside of the enclosure rather than > injecting it into the circuits on the board ground plane. > We did not have this problem when we mounted the jacks on the enclosure > rather than mounting them on the boards, usually isolated from the > outside of the enclosure. > > 73, > Don W3FPR > > On 6/9/2020 7:47 PM, Joe Subich, W4TV wrote: >> >> Correcting *ALL* the typos .... >> >> >>> So which is correct? >> >> They are electrically equivalent. >> >> Pin 2 of the XLR connection is Mic+ >> Pin 3 of the XLR connection is Mic- >> Pin 1 of the XLR connection is the cable shield (ground). >> >> Mic audio is present between pins 2 and 3. >> >> Pin 1 is nothing more than a shield and should be independently >> connected to the *chassis at the jack*. >> >> Good quality XLR cables use a *TWISTED PAIR* for pins 2 and 3. >> That twisted pair is shelf shielding - particularly good for >> rejecting hum. Connecting a shield in parallel with the wire >> for pin 3 "unbalances" the twisted pair and makes it much >> more susceptible to hum and RFI - particularly when the shell >> of the 3.5mm plug/jack is not tied to the chassis/case of the >> transceiver. From ka9p at aol.com Tue Jun 9 21:38:01 2020 From: ka9p at aol.com (SCOTT MCDONALD) Date: Tue, 9 Jun 2020 20:38:01 -0500 Subject: [Elecraft] zero-beating a KX1 In-Reply-To: <1e27aaff-19c9-c34e-b7b9-3afe569b5819@embarqmail.com> References: <1e27aaff-19c9-c34e-b7b9-3afe569b5819@embarqmail.com> Message-ID: http://www.wb9kzy.com/gzb.htm This Zerobeat kit looks like it?s still available, might be worth a look. If anyone does please report back, I?m still banging away on my KX1 as well Scott ka9p Make something good happen! > On Jun 9, 2020, at 4:30 PM, Don Wilhelm wrote: > > ?Tom Hammond N0SS's (SK) website is mostly intact thanks to the Mid Missouri Amateur Radio Club. It is a valuable resource. > > You can find the files for the K1 and KX1 CW Tuning Indicator (SMD version) at http://www.mmccs.com/mmarc/n0ss/index_k1.html. > > If you have capability to etch your own boards, Tom recorded full size images. You might also try emailing Fred at FAR Circuits to see if he can create the boards. I believe Tom may have used him as his board supplier. > > 73, > Don W3FPR > >> On 6/8/2020 7:33 PM, Frederick Dwight wrote: >> If you do a google search on KX1 zero beat indicator or cw zero beat indicator you will see several circuits demonstrated. Some like the one which uses the LM567 (non SMT) part and had >> a white LED seemed to be good, much less than 100 Hz BW and had the schematic, but some others seemed to be much too broad, perhaps hundreds of Hz wide. My circuit >> needed quite a bit of audio drive, so rigged up a small 500-500 CT audio transformer and used the primary as a autotransformer to double the audio voltage >> to the circuit which did not change the earphone volume but enabled the detector to operate without opening up the audio gain too much on any of my rigs. >> Good Luck Rick KL7CW >> Sent from Mail for Windows 10 >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to donwilh at embarqmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ka9p at aol.com From donwilh at embarqmail.com Tue Jun 9 22:50:48 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 9 Jun 2020 22:50:48 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <5df853a6-8d9e-6045-e414-e8be4ba20a01@embarqmail.com> Message-ID: <11cd5bbe-69d7-eb46-4748-b2d3279a193d@embarqmail.com> Joe, I did not say anything to the contrary. The 'dongle' that I was referring to is the connection to pin 1 which should be connected to the outside of the K3/K3S enclosure. 73, Don W3FPR On 6/9/2020 9:13 PM, Joe Subich, W4TV wrote: > > On 2020-06-09 8:14 PM, Don Wilhelm wrote: >> So --- make an adapter so that pins 2 and 3 are connected to the tip >> and ring of the mic jack, > No, no, no!? The ring of the K3/K3S rear panel mic jack *IS FLOATING*. > Pins 2 and 3 of the XLR *MUST BE* connected to tip and *SLEEVE*. > > 73, > > ?? ... Joe, W4TV > > > On 2020-06-09 8:14 PM, Don Wilhelm wrote: >> So --- make an adapter so that pins 2 and 3 are connected to the tip >> and ring of the mic jack, then add a one wire 'dongle' exiting from >> the XLR plug that is connected to XLR pin 1.? Connect that wire to a >> screw on the chassis of the K3/K3S/KX2/KX3. >> >> Noise, hum and buzz are? then conducted from the shield onto the >> "outside" of the radio enclosure where it should be - avoiding the >> "pin 1" problem that K9YC often refers to. >> >> For those not familiar with the "pin 1" problem, it is caused by the >> jacks in the transceiver (or other gear) being connected to the >> circuit board ground plane where it can couple into sensitive circuits >> and cause coupling problems.? Proper bonding between enclosures >> following the path of audio or coax lines can minimize that problem by >> keeping some of the noise, hum and buzz mostly on the outside of the >> enclosure rather than injecting it into the circuits on the board >> ground plane. >> We did not have this problem when we mounted the jacks on the >> enclosure rather than mounting them on the boards, usually isolated >> from the outside of the enclosure. >> >> 73, >> Don W3FPR >> >> On 6/9/2020 7:47 PM, Joe Subich, W4TV wrote: >>> >>> Correcting *ALL* the typos .... >>> >>> >>>> So which is correct? >>> >>> They are electrically equivalent. >>> >>> Pin 2 of the XLR connection is Mic+ >>> Pin 3 of the XLR connection is Mic- >>> Pin 1 of the XLR connection is the cable shield (ground). >>> >>> Mic audio is present between pins 2 and 3. >>> >>> Pin 1 is nothing more than a shield and should be independently >>> connected to the *chassis at the jack*. >>> >>> Good quality XLR cables use a *TWISTED PAIR* for pins 2 and 3. >>> That twisted pair is shelf shielding - particularly good for >>> rejecting hum. Connecting a shield in parallel with the wire >>> for pin 3 "unbalances" the twisted pair and makes it much >>> more susceptible to hum and RFI - particularly when the shell >>> of the 3.5mm plug/jack is not tied to the chassis/case of the >>> transceiver. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donwilh at embarqmail.com From donwilh at embarqmail.com Tue Jun 9 22:52:27 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 9 Jun 2020 22:52:27 -0400 Subject: [Elecraft] zero-beating a KX1 In-Reply-To: References: <1e27aaff-19c9-c34e-b7b9-3afe569b5819@embarqmail.com> Message-ID: Scott, From what source?? The latest was that WA3AAL is also SK. 73, Don W3FPR On 6/9/2020 9:38 PM, SCOTT MCDONALD wrote: > http://www.wb9kzy.com/gzb.htm > > This Zerobeat kit looks like it?s still available, might be worth a > look. ?If anyone does please report back, I?m still banging away on my > KX1 as well > > Scott ka9p > > Make something good happen! > >> On Jun 9, 2020, at 4:30 PM, Don Wilhelm wrote: >> >> ?Tom Hammond N0SS's (SK) website is mostly intact thanks to the Mid >> Missouri Amateur Radio Club. ?It is a valuable resource. >> >> You can find the files for the K1 and KX1 CW Tuning Indicator (SMD >> version) at http://www.mmccs.com/mmarc/n0ss/index_k1.html. >> >> If you have capability to etch your own boards, Tom recorded full >> size images. ?You might also try emailing Fred at FAR Circuits to see >> if he can create the boards. ?I believe Tom may have used him as his >> board supplier. >> >> 73, >> Don W3FPR >> >> On 6/8/2020 7:33 PM, Frederick Dwight wrote: >>> If you do a google search on KX1 zero beat indicator or cw zero beat >>> indicator you will see several circuits demonstrated. ?Some like the >>> one which uses the LM567 (non SMT) part and had >>> a white LED seemed to be good, much less than 100 Hz BW and had the >>> schematic, but some others seemed to be much too broad, perhaps >>> hundreds of Hz wide. My circuit >>> needed quite a bit of audio drive, so rigged up a small 500-500 CT >>> audio transformer and used the primary as a autotransformer to >>> double the audio voltage >>> to the circuit which did not change the earphone volume but enabled >>> the detector to operate without opening up the audio gain too much >>> on any of my rigs. >>> ??????????Good Luck ??Rick ?KL7CW >>> Sent from Mail for Windows 10 >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to donwilh at embarqmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ka9p at aol.com From donwilh at embarqmail.com Tue Jun 9 22:56:18 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 9 Jun 2020 22:56:18 -0400 Subject: [Elecraft] zero-beating a KX1 In-Reply-To: References: <1e27aaff-19c9-c34e-b7b9-3afe569b5819@embarqmail.com> Message-ID: Sorry, but I did not look at your link until after I sent my response. While that DIP version may work in a K2, I doubt that it can be squeezed into a KX1. 73, Don W3FPR ---------------------------------------------------------------------------------------------- Scott, From what source?? The latest was that WA3AAL is also SK. 73, Don W3FPR On 6/9/2020 9:38 PM, SCOTT MCDONALD wrote: > http://www.wb9kzy.com/gzb.htm > > This Zerobeat kit looks like it?s still available, might be worth a > look. ?If anyone does please report back, I?m still banging away on my > KX1 as well > > Scott ka9p > > Make something good happen! > >> On Jun 9, 2020, at 4:30 PM, Don Wilhelm wrote: >> >> ?Tom Hammond N0SS's (SK) website is mostly intact thanks to the Mid >> Missouri Amateur Radio Club. ?It is a valuable resource. >> >> You can find the files for the K1 and KX1 CW Tuning Indicator (SMD >> version) at http://www.mmccs.com/mmarc/n0ss/index_k1.html. >> >> If you have capability to etch your own boards, Tom recorded full >> size images. ?You might also try emailing Fred at FAR Circuits to see >> if he can create the boards. ?I believe Tom may have used him as his >> board supplier. >> >> 73, >> Don W3FPR >> >> On 6/8/2020 7:33 PM, Frederick Dwight wrote: >>> If you do a google search on KX1 zero beat indicator or cw zero beat >>> indicator you will see several circuits demonstrated. ?Some like the >>> one which uses the LM567 (non SMT) part and had >>> a white LED seemed to be good, much less than 100 Hz BW and had the >>> schematic, but some others seemed to be much too broad, perhaps >>> hundreds of Hz wide. My circuit >>> needed quite a bit of audio drive, so rigged up a small 500-500 CT >>> audio transformer and used the primary as a autotransformer to >>> double the audio voltage >>> to the circuit which did not change the earphone volume but enabled >>> the detector to operate without opening up the audio gain too much >>> on any of my rigs. >>> ??????????Good Luck ??Rick ?KL7CW >>> Sent from Mail for Windows 10 >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to donwilh at embarqmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ka9p at aol.com From nr4c at widomaker.com Tue Jun 9 23:18:54 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 9 Jun 2020 23:18:54 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> Message-ID: <11C84ECC-DBD9-4BF1-A043-6A5840AEAC8F@widomaker.com> If yuh ou use a TRS plug, don?t use the ?ring? for anything. Extending the pin 1 wire out of the connector and connecting to the radio ?Ground? lug is also tecvonended in some circles. Sent from my iPhone ...nr4c. bill > On Jun 9, 2020, at 4:51 PM, Tony wrote: > > ?All: > > I have a follow-up question regarding balanced mics and unbalanced connections. I'm about to connect a balanced dynamic microphone (Heil PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono connection. > > One recommendation was to connect XLR pin #2 mic (+) to the tip of the 1/8" jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or ground is left floating with no connection. A 1/8" mono jack was recommended for this setup. > > The other recommendation was to connect pin #2 to the tip and pin #1 and #3 to the sleeve of the 1/8" jack. It was also suggested that I can use either a 1/8" mono or a stereo TRS jack in both cases. > > So which is correct? > > Tony -K2MO > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From prpntfmr at gmail.com Tue Jun 9 23:37:25 2020 From: prpntfmr at gmail.com (Frank C Richards) Date: Tue, 9 Jun 2020 23:37:25 -0400 Subject: [Elecraft] K3 0n motorboat Message-ID: I used the wrong terminology when I was speaking about antenna system grounding on a boat. What I actually meant was a counterpoise system. I agree that a vertical dipole works well but would be difficult to install permanently on a small boat. A vertical is most often used with a tuner. There are standard mounts and they are pretty easy to install and are sturdy and well suited for marine use. I also agree that all structures should be bonded to the counterpoise system. Some of the boat builders(Hatteras ,Bertram .etc) would put copper screen into the fiberglass layups of the flying bridge decks and roofs with a stud connected to it so that it could be tied into the system. On commercial trawlers the antenna would be mounted on the mast about 30 or 35 ft above the water.It was fed with a wire about 25 or 30 ft long so it was actually a 55 or 60 ft end-fed. With the outriggers lowered and acting as radials, the trawl doors and cables in the water and everything else bonded together, it is a pretty good counterpoise system. 73, Frank KB4VU From W2xj at w2xj.net Wed Jun 10 00:08:35 2020 From: W2xj at w2xj.net (W2xj) Date: Wed, 10 Jun 2020 00:08:35 -0400 Subject: [Elecraft] K3 0n motorboat In-Reply-To: References: Message-ID: <90DFC0BC-1563-44BB-9D7B-454A8B32A606@w2xj.net> again, check with the wife. Sent from my iPad > On Jun 9, 2020, at 11:39 PM, Frank C Richards wrote: > > ?I used the wrong terminology when I was speaking about antenna system > grounding on a boat. What I actually meant was a counterpoise system. > I agree that a vertical dipole works well but would be difficult to install > permanently > on a small boat. A vertical is most often used with a tuner. There are > standard mounts > and they are pretty easy to install and are sturdy and well suited for > marine use. > I also agree that all structures should be bonded to the counterpoise > system. > Some of the boat builders(Hatteras ,Bertram .etc) would put copper screen > into > the fiberglass layups of the flying bridge decks and roofs with a stud > connected > to it so that it could be tied into the system. > On commercial trawlers the antenna would be mounted on the mast about 30 or > 35 ft above the water.It was fed with a wire about 25 or 30 ft long so it > was > actually a 55 or 60 ft end-fed. > With the outriggers lowered and acting as radials, the trawl doors and > cables in the > water and everything else bonded together, it is a pretty good counterpoise > system. > > 73, Frank KB4VU > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net > From k2vco.vic at gmail.com Wed Jun 10 01:04:47 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Wed, 10 Jun 2020 08:04:47 +0300 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <0C877534-E329-4143-BA7E-FF1962334BB5@franciscan.org> References: <4792680E-BCCE-48B6-924E-E31A215FF6BD@w2xj.net> <0C877534-E329-4143-BA7E-FF1962334BB5@franciscan.org> Message-ID: <1194bd8f-cb7c-c922-1b32-786de77c3eaf@gmail.com> BS alert! Their slogan should be: "If you can afford it, you can violate the laws of physics." No, you can't. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 10/06/2020 2:27, Michael Chowning wrote: > Aesthetics, yes. Cost? Gulp! > > https://advancedhfsolutions.com/ > > Mike, N8TTR > >> On Jun 9, 2020, at 6:32 PM, W2xj wrote: >> >> aesthetics? >> >> Sent from my iPad >> >>> On Jun 9, 2020, at 6:14 PM, Barry wrote: >>> >>> ?Full size verticals are hard to do on small power boats. And elevated grounds are also hard. Water grounds are usually the most practical, but fresh water is not great. I counsel inverted Vs as they are ground independent. On power boats that too is a tough trick, but it can be done, depending on size of the boat. A 40 meter dipole can be made by bending the ends and can be fed with coax through a 4:1 current balun if the run to the radio is not too great. It will require a fiberglass mast bracketed to the fly bridge. There are several suppliers of good, strong push up masts available; I wouldn't go more than about 25 feet which should put the feed about 31 or so feet over the water,m close to a 1/4 wave on 40. This arrangement will allow all band operation above 40 with a K3 as the tuner is just plain magic. >>> >>> 73, >>> Barry >>> K3NDM >>> >>> ------ Original Message ------ >>> From: "Robert Sands" >>> To: "Frank C Richards" >>> Cc: "Elecraft Discussion List" >>> Sent: 6/9/2020 3:22:27 PM >>> Subject: Re: [Elecraft] K3 on motorboat. >>> >>>> Verticals require more attention to ground but the goal should be to >>>> increase the antenna current, thus increasing radiated signal. ground into >>>> water seems like a waste but has DC grounding value. I use hung vertical >>>> dipoles (20 and 15) with no need for ground and they work amazingly well. I >>>> have tried letting wire or zinc ribbon strips drop into saltwater to >>>> ground verticals and there is no value I can detect over something simpler, >>>> like tying to existing structures or running a above water wire >>>> counterpoise. Vertical dipoles require no Rf ground and propagate at low >>>> angle and high efficiency. Far effects over water are what counts, more >>>> than grounding, except in verticals to get higher antenna current. >>>> K7VO >>>> >>>>> On Tue, Jun 9, 2020 at 7:38 AM Frank C Richards wrote: >>>>> >>>>> Having been in the marine electronics business I was able to successfully >>>>> install many HF radios on boats from large steel commercial fishing boats >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to mike.chowning at franciscan.org >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com > From jim at audiosystemsgroup.com Wed Jun 10 01:53:14 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 9 Jun 2020 22:53:14 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> Message-ID: On 6/9/2020 3:54 PM, Barry wrote: > EE is an art and not science That is NOT even slightly true. ART did not put us on the moon or build the Mars rovers. Engineering is the thoughtful application of scientific principles and knowledge to solve practical problems. Without science as a base, it's little more than the infinite number of monkeys and typewriters producing Shakespeare. Nearly all practical designs involve some compromises. Great engineering is selecting (sometimes innovating) those solutions which work well for the particular problem at hand. 73, Jim K9YC From jim at audiosystemsgroup.com Wed Jun 10 02:05:57 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 9 Jun 2020 23:05:57 -0700 Subject: [Elecraft] K3 0n motorboat In-Reply-To: References: Message-ID: On 6/9/2020 8:37 PM, Frank C Richards wrote: > I also agree that all structures should be bonded to the counterpoise > system. > Some of the boat builders(Hatteras ,Bertram .etc) would put copper screen > into > the fiberglass layups of the flying bridge decks and roofs with a stud > connected > to it so that it could be tied into the system. All good advice, to the extent that it applies to the boat in question. All the bonded stuff acts like more or less like the chassis of a automobile or pickup (except that lots of stuff on modern vehicles either isn't conductive, or those that are metal are often insulated from each other by paint). :) > On commercial trawlers the antenna would be mounted on the mast about 30 or > 35 ft above the water.It was fed with a wire about 25 or 30 ft long so it > was > actually a 55 or 60 ft end-fed. That would be a pretty good antenna too. I would not recommend an HF antenna with an elevated feedpoint (or even an elevated current maxima), simply because there's some funny lobing in the vertical pattern that happens over water. The best way to feed a vertical on a boat is from the base, low, near the water. > With the outriggers lowered and acting as radials, the trawl doors and > cables in the > water and everything else bonded together, it is a pretty good counterpoise > system. Yes. But remember that THIS question was specifically about a boat operating only on fresh water. 73, Jim K9YC From gordon.lapoint at gmail.com Wed Jun 10 04:26:25 2020 From: gordon.lapoint at gmail.com (Gordon LaPoint) Date: Wed, 10 Jun 2020 04:26:25 -0400 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <275E3D85-EF9B-4965-BC23-EEC827155491@me.com> References: <019b01d63e9e$6edf4850$4c9dd8f0$@LNAINC.com> <275E3D85-EF9B-4965-BC23-EEC827155491@me.com> Message-ID: Jack, ??? I'm the original poster.? I may be misstating what I want to accomplish. At the remote station location I want the KPA500 Remote software to start in host mode, with connection to the KPA500 hardware and the KAT500 remote software to also start in host mode connected to the hardware. Then I can start the software from my laptop and connect to the remote and see the KAT500 and KPA500. I can have the software start at the hardware site, but how do I get it to automatically connect to the hardware so the HOST mode is working? Remote site is where the hardware is located, KPA500, KAT500, Radio. Control site is where I am running the station from. I can use something like TeamViewer to log into the Control site and click on the "Host" button on the running software, but that is what I want to avoid. I use RCForb for normal operation, but that only controls the radio and the KPA500, it does not properly control the KAT500. And when I'm doing a contest using WriteLog Remote I don't have RCForb running so then I need the KPA500 remote to run the amp. Gordon - N1MGO On 6/9/2020 17:42 PM, Jack Brindle via Elecraft wrote: > Are you referring to front or rear panel power? The K3 Utility can certainly power on a KPA500 if the rear panel switch is on. If that switch is off, it must be turned on before the front panel switch (or remote power-on) works. Now if you have a big relay in the power line to the KPA, it needs to be enabled as well. > > Setting up remote stations is a skill. There are many ways to do it, and each need to be evaluated to get it done the way _you_ want. > > By the way, to the original poster - if you are using a Mac, just add the two utilities to the user?s "Login Items? list in the User?s & Groups System Preferences pane. You just have to make sure that user is started up when the system powers up. There are other ways to do this, but by far that is the easiest. > > 73! > Jack, W6FB > > >> On Jun 9, 2020, at 1:42 PM, Lyn Norstad wrote: >> >> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. >> >> To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). >> >> In Windows 10, search "Startup Apps." >> >> 73 >> Lyn, W0LEN >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net ] On Behalf Of Gordon LaPoint >> Sent: Tuesday, June 09, 2020 1:45 PM >> To: elecraft at mailman.qth.net >> Subject: [Elecraft] KAT500 Remote software and KPA500 remote software >> >> Can these remote software's be in host mode on startup? I run a remote >> and would like to have them connect to the hardware and be in host mode >> on boot of the computer. Right now I just log on remotely and start >> each one as needed. >> >> Thanks, >> >> Gordon - N1MGO >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to lyn at lnainc.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jackbrindle at me.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gordon.lapoint at gmail.com From ebasilier at cox.net Wed Jun 10 05:09:37 2020 From: ebasilier at cox.net (Erik B) Date: Wed, 10 Jun 2020 02:09:37 -0700 Subject: [Elecraft] K3 0n motorboat In-Reply-To: References: Message-ID: <00c601d63f06$de8fd490$9baf7db0$@cox.net> The original poster wants something aesthetically acceptable but performing as well as possible within those limits, whatever they might be. He didn't say it has to be a solution available over the counter. He doesn't say that experimentation is unacceptable. So I suggest that he first construct a temporary solution with a liberal dose of cut-and-try. That allows him to vary size and location parameters that push the envelope to (the limits of) size and xyl acceptability. Then construct a permanent version that looks pretty. What kind of antenna? Start with a vertical with counterpoise, and give it as many variable parameters as possible. Say we start with the tiny vertical dipole consisting of two hamsticks that someone already suggested. Allow physical asymmetry as in making the lower half a shorter length compared to the upper, while retaining the symmetry in electrical length (by means of different loading). Consider making the lower half horizontal. Such L-shaped antennas work quite well (with some directivity), at least on dry land. Consider two of the horizontal counterpoises for symmetry. Take time to experiment and see what works best for you. Make the vertical portion as tall as allowed by the xyl. Of course you need to be able to vary the load inductors for both portions. The counterpoise(s) can be hinged to stay vertical close to the vertical portion when not in use, and floded down like fishing rods to horizontal position for actual use. How to maintain the electrical symmetry? Actually, you don't need to. You let the (L-shaped) dipole become Off-Center-Fed, which gives you another parameter to play with. The popular Buddipole design uses this to help with impedance matching. You should of course use a common mode choke in any case to prevent RF from flowing on the outside of the coax. As you get more off (electrical) center, the need for choking will get more pronounced, until you get really far off center, such that you have essentially an end-fed antenna with just a tiny counterpoise. Such antennas don't need as much common mode choking as do some of the other feed locations, but still need some. As you vary the off-center-ishness, the feed impedance will vary. As already mentioned, this can be used to help matching, but if you go far off center you will need to add a matching device. A popular choice would be a wideband ferrite-cored transformer. As you vary lengths and loading inductances you can measure feed impedance with an analyzer, going for resonance and most pleasing dimensions along with resonance. Then look at the resistive impedance and consider whether a transformer is needed. 73, Erik K7TV From ja1nlx0205 at my.email.ne.jp Wed Jun 10 05:26:06 2020 From: ja1nlx0205 at my.email.ne.jp (Yoshida Akira) Date: Wed, 10 Jun 2020 18:26:06 +0900 Subject: [Elecraft] K3/100 suddenly shut down on FT8 TX In-Reply-To: <8f4850b6-8b37-f05e-9903-65ff5480b576@my.email.ne.jp> References: <2a095cd0-f4f4-39e6-6607-71ab5b42df1d@my.email.ne.jp> <48b08000-2d4a-13cc-f245-e3f34ed0c462@my.email.ne.jp> <8f4850b6-8b37-f05e-9903-65ff5480b576@my.email.ne.jp> Message-ID: <8a73fe09-978b-e747-c272-003d08d16eab@my.email.ne.jp> Hi all Maybe my problem looks solved. Referring to suggestions I checked all coax cables. I found a cable with bad poor contact at both end plugs. K3 see very high SWR instantaneously and it shout down. I have not seen the problem for several hours since bad cable was replaced. Thanks again for suggestions. 73 On 2020/06/10 7:15, Yoshida Akira wrote: > Hi all > > Thanks for more suggestions, however I am not happy. > I noticed this a several times yesterday when transmitting FT8 with 50W. > > I checked DX cable and connectors. It looks OK. I look at voltage, > current and PA Temp > with internal meter. I do not notice any significant jump just before > shut down. > > It is better for me to send K3/100 to JA dealer who checked > everything, sometimes > replaced parts before. > > BTW: my K3/100 s/n 00060? arrived on 2007/12?? I still like this radio > best. > > Thanks > > 73 > > > On 2020/06/09 11:33, Yoshida Akira wrote: >> Hi all >> >> Thanks for suggestions. All look OK to me. >> >> Power supply is Powerwerx ss-30DV. I do not use Powerpole connector >> in the front panel, instead use terminal in the back panel. >> >> I use this power supply for another TRX also and have never noticed >> the problem. >> >> 73 >> >> On 2020/06/09 9:00, Yoshida Akira wrote: >>> Hi all >>> >>> I have never seen this for many years, however I recently noticed twice >>> when transmitting FT8 with 100W. No alarm and error message. >>> When I simply push POWER button in front panel then it turns ON again. >>> >>> PA temp, DC voltage and DC current looks good. I do not believe RFI >>> cause this problem. >>> >>> Any idea ? >>> -- 73 de aki JA1NLX From john at kk9a.com Wed Jun 10 08:18:18 2020 From: john at kk9a.com (john at kk9a.com) Date: Wed, 10 Jun 2020 07:18:18 -0500 Subject: [Elecraft] K3 on motorboat. Message-ID: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> Where is this company? I dd not see any information about them on the website. John KK9A Michael Chowning N8TTR wrote: https://advancedhfsolutions.com Mike, N8TTR From gt0hof at gmail.com Wed Jun 10 08:19:44 2020 From: gt0hof at gmail.com (gt0hof at gmail.com) Date: Wed, 10 Jun 2020 13:19:44 +0100 Subject: [Elecraft] Codec on the K3s Message-ID: <61876AAA-2E96-45DD-8E5B-8349063F0231@hxcore.ol> From k2vco.vic at gmail.com Wed Jun 10 08:23:00 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Wed, 10 Jun 2020 15:23:00 +0300 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> References: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> Message-ID: <4ba2891e-f8d2-db40-a80a-629c6ee368ad@gmail.com> Probably Nigeria. Here is a patent for .... something: 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 10/06/2020 15:18, john at kk9a.com wrote: > Where is this company?? I dd not see any information about them on the > website. > > John KK9A > > > > Michael Chowning N8TTR wrote: > > https://advancedhfsolutions.com > > ?? Mike, N8TTR From ny9h at arrl.net Wed Jun 10 08:30:32 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Wed, 10 Jun 2020 08:30:32 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <4ba2891e-f8d2-db40-a80a-629c6ee368ad@gmail.com> References: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> <4ba2891e-f8d2-db40-a80a-629c6ee368ad@gmail.com> Message-ID: <2f49f061-7d98-23da-369b-c43b07db059e@arrl.net> googling shows alot of legal activity,,,,,,???? maybe charleston, SC....?? too much reading for me . On 6/10/2020 8:23 AM, Victor Rosenthal 4X6GP wrote: > Probably Nigeria. > > Here is a patent for .... something: > > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > CWops no. 5 > http://www.qsl.net/k2vco/ > . > On 10/06/2020 15:18, john at kk9a.com wrote: >> Where is this company?? I dd not see any information about them on >> the website. >> >> John KK9A >> >> >> >> Michael Chowning N8TTR wrote: >> >> https://advancedhfsolutions.com >> >> ??? Mike, N8TTR > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ny9h at arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From k5dwdon at gmail.com Wed Jun 10 09:02:38 2020 From: k5dwdon at gmail.com (Donald Wines) Date: Wed, 10 Jun 2020 08:02:38 -0500 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> References: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> Message-ID: Apparently they are a two person company located in Oakwood, TX a small town of about 3000 good folk located about an 1-1/2 hours southeast of my QTH in Bullard, TX. You can check them out here https://www.corporationwiki.com/p/2s9ylr/advanced-hf-solutions-inc. The price on this thing is almost $10K. Don, K5DW On Wed, Jun 10, 2020 at 7:19 AM wrote: > Where is this company? I dd not see any information about them on the > website. > > John KK9A > > > > Michael Chowning N8TTR wrote: > > https://advancedhfsolutions.com > > Mike, N8TTR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k5dwdon at gmail.com > From rmcgraw at blomand.net Wed Jun 10 09:12:47 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Wed, 10 Jun 2020 08:12:47 -0500 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <11C84ECC-DBD9-4BF1-A043-6A5840AEAC8F@widomaker.com> References: <11C84ECC-DBD9-4BF1-A043-6A5840AEAC8F@widomaker.com> Message-ID: <7F0B6B42-DF88-4FDA-B260-ADACFABE0AFE@blomand.net> Since the input is clearly marked MONO, a tip-sleeve is the correct plug. If one uses a TRS plug, the ring should be connected to the sleeve inside the plug. Using a mike which has an XLR, pin 2 should connect to the Tip, pin 3 to the sleeve, and the shield only connects to XLR pin 1 at the mike. It does not connect to the sleeve at the radio. Bob, K4TAX Sent from my iPhone > On Jun 9, 2020, at 10:20 PM, Nr4c wrote: > > ?If yuh ou use a TRS plug, don?t use the ?ring? for anything. > > Extending the pin 1 wire out of the connector and connecting to the radio ?Ground? lug is also tecvonended in some circles. > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 9, 2020, at 4:51 PM, Tony wrote: >> >> ?All: >> >> I have a follow-up question regarding balanced mics and unbalanced connections. I'm about to connect a balanced dynamic microphone (Heil PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono connection. >> >> One recommendation was to connect XLR pin #2 mic (+) to the tip of the 1/8" jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or ground is left floating with no connection. A 1/8" mono jack was recommended for this setup. >> >> The other recommendation was to connect pin #2 to the tip and pin #1 and #3 to the sleeve of the 1/8" jack. It was also suggested that I can use either a 1/8" mono or a stereo TRS jack in both cases. >> >> So which is correct? >> >> Tony -K2MO >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From ghyoungman at gmail.com Wed Jun 10 09:38:02 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Wed, 10 Jun 2020 09:38:02 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> Message-ID: So this flute thing is essentially a bi-cone EH antenna. Somehow the cosine derived flute shape helps in satisfying the requirements of the Poynting Theorem, to align the E-H fields in time phase, and on and on. One of the more controversial antenna types, judging by the range of opinions from ?it must be magic?, to "it?s the coax that actually radiates", to ?it works and is simply misunderstood by people too set in their Hertzian thinking to understand the new and brilliant concept?, and so forth. I don?t know enough to know. I do know it wouldn?t be worth ten grand to find out :-) Grant NQ5T > On Jun 10, 2020, at 9:02 AM, Donald Wines wrote: > > Apparently they are a two person company located in Oakwood, TX a small > town of about 3000 good folk located about an 1-1/2 hours southeast of my > QTH in Bullard, TX. > You can check them out here > https://www.corporationwiki.com/p/2s9ylr/advanced-hf-solutions-inc. > The price on this thing is almost $10K. > > Don, > K5DW > > > On Wed, Jun 10, 2020 at 7:19 AM wrote: > >> Where is this company? I dd not see any information about them on the >> website. >> >> John KK9A From ehr at qrv.com Wed Jun 10 09:34:19 2020 From: ehr at qrv.com (E.H. Russell) Date: Wed, 10 Jun 2020 09:34:19 -0400 Subject: [Elecraft] CW rise time setting In-Reply-To: <0d67a99a-2fa5-3962-1b17-99d7ef2eacb5@audiosystemsgroup.com> References: <171845577.1780813.1591726058809@mail.yahoo.com> <0d67a99a-2fa5-3962-1b17-99d7ef2eacb5@audiosystemsgroup.com> Message-ID: <000c01d63f2b$d8f46fd0$8add4f70$@qrv.com> Jim, Interesting results, especially the dramatic difference in the FTDX5000 after the firmware update. The K3 looks great. Hopefully the K4 will be at least as good. Ed / w2rf -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Jim Brown Sent: Tuesday, June 9, 2020 3:46 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] CW rise time setting On 6/9/2020 11:07 AM, Al Lorona wrote: > The reduction in the sideband levels (what some folks here called 'clicks'... not sure that's a good name for this) varies depending on where you measure it, but in general the sidebands will drop anywhere from 0 to 12 dB-- sometimes less, sometimes more-- when you go from 2 msec to 8 msec rise/fall times. For instance, arbitrarily choosing an offset of 500 Hz from the carrier, the sideband drops by 11 dB for the longer rise time. That turns out to be a fairly typical value. And by the way, in general the sigmoid does a better job than a raised cosine. I've not looked at the math, but I've measured more than a half dozen radios, most with variable time constant shaping, and Elecraft with their fixed sigmoidal shaping. The data is here. http://k9yc.com/P3_Spectrum_Measurements.pdf A K3 at 25W (driving a KPA500 to full power) is 50 dB down 230 Hz either side of the signal, 60 dB down at 305 Hz. At 40W driving a legal limit tube amp (Ten Tec Titan) sidebands at the power amp output are 50 dB down at 235 Hz, 60 dB down at 335 Hz. A neighbor's FT1000 Mark V Field was 50 dB down at 665 Hz. Another neighbor's FTDX5000 set for 6 msec was 50 dB down at 410 Hz, 60 dB down at 1.05 kHz before the firmware update. It improved to -50 dB at 310 Hz and -60 at 535 Hz after the update. 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ehr at qrv.com From w5jr.lists at gmail.com Wed Jun 10 09:41:29 2020 From: w5jr.lists at gmail.com (Mike - W5JR) Date: Wed, 10 Jun 2020 09:41:29 -0400 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: References: <019b01d63e9e$6edf4850$4c9dd8f0$@LNAINC.com> <275E3D85-EF9B-4965-BC23-EEC827155491@me.com> Message-ID: <37169C8E-90D1-475F-9297-A5F8F845B0DF@gmail.com> Search for a recent email (a month or two ago) on this very topic from Warren/KD4Z. He?s written a Windows script that does this very thing, available at his github. Put it in your Windows Startup directory. Works great. Written for KAT500, KPA500 and KPA1500, up to two instances, for those remote SO2R stations. You edit the script with a few particulars of your station, all described within the script. tnx Mike / W5JR Alpharetta GA > On Jun 10, 2020, at 04:26, Gordon LaPoint wrote: > > Jack, > I'm the original poster. I may be misstating what I want to accomplish. > At the remote station location I want the KPA500 Remote software to start in host mode, with connection to the KPA500 hardware and the KAT500 remote software to also start in host mode connected to the hardware. > Then I can start the software from my laptop and connect to the remote and see the KAT500 and KPA500. > I can have the software start at the hardware site, but how do I get it to automatically connect to the hardware so the HOST mode is working? > > Remote site is where the hardware is located, KPA500, KAT500, Radio. > Control site is where I am running the station from. > I can use something like TeamViewer to log into the Control site and click on the "Host" button on the running software, but that is what I want to avoid. > > I use RCForb for normal operation, but that only controls the radio and the KPA500, it does not properly control the KAT500. > And when I'm doing a contest using WriteLog Remote I don't have RCForb running so then I need the KPA500 remote to run the amp. > > Gordon - N1MGO > >> On 6/9/2020 17:42 PM, Jack Brindle via Elecraft wrote: >> Are you referring to front or rear panel power? The K3 Utility can certainly power on a KPA500 if the rear panel switch is on. If that switch is off, it must be turned on before the front panel switch (or remote power-on) works. Now if you have a big relay in the power line to the KPA, it needs to be enabled as well. >> >> Setting up remote stations is a skill. There are many ways to do it, and each need to be evaluated to get it done the way _you_ want. >> >> By the way, to the original poster - if you are using a Mac, just add the two utilities to the user?s "Login Items? list in the User?s & Groups System Preferences pane. You just have to make sure that user is started up when the system powers up. There are other ways to do this, but by far that is the easiest. >> >> 73! >> Jack, W6FB >> >> >>> On Jun 9, 2020, at 1:42 PM, Lyn Norstad wrote: >>> >>> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. >>> >>> To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). >>> >>> In Windows 10, search "Startup Apps." >>> >>> 73 >>> Lyn, W0LEN >>> >>> -----Original Message----- >>> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net ] On Behalf Of Gordon LaPoint >>> Sent: Tuesday, June 09, 2020 1:45 PM >>> To: elecraft at mailman.qth.net >>> Subject: [Elecraft] KAT500 Remote software and KPA500 remote software >>> >>> Can these remote software's be in host mode on startup? I run a remote >>> and would like to have them connect to the hardware and be in host mode >>> on boot of the computer. Right now I just log on remotely and start >>> each one as needed. >>> >>> Thanks, >>> >>> Gordon - N1MGO >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to lyn at lnainc.com >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to jackbrindle at me.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to gordon.lapoint at gmail.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w5jr.lists at gmail.com From ny9h at arrl.net Wed Jun 10 09:52:28 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Wed, 10 Jun 2020 09:52:28 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> Message-ID: <508c0d04-503a-c280-b42f-a4e59fc96f9a@arrl.net> looks like they are hunting for military business...???? the element looks like one of those on the big Chernobyl over the horizon antenna... broadband.. https://www.youtube.com/watch?v=WjoPy6drGBQ bill On 6/10/2020 9:02 AM, Donald Wines wrote: > Apparently they are a two person company located in Oakwood, TX a small > town of about 3000 good folk located about an 1-1/2 hours southeast of my > QTH in Bullard, TX. > You can check them out here > https://www.corporationwiki.com/p/2s9ylr/advanced-hf-solutions-inc. > The price on this thing is almost $10K. > > Don, > K5DW > > > On Wed, Jun 10, 2020 at 7:19 AM wrote: > >> Where is this company? I dd not see any information about them on the >> website. >> >> John KK9A >> >> >> >> Michael Chowning N8TTR wrote: >> >> https://advancedhfsolutions.com >> >> Mike, N8TTR >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k5dwdon at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ny9h at arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From gild at seanet.com Wed Jun 10 10:05:22 2020 From: gild at seanet.com (Gil Drynan) Date: Wed, 10 Jun 2020 07:05:22 -0700 (PDT) Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> Message-ID: <58206.24.22.164.93.1591797922.squirrel@wm.seanet.com> The PR-781 does not like the DC bias supplies from many newer ham radios. A capacitor in series with one side of the balanced line. Heil offers a specialized cable for three pin XLR mike to the mike jack on front of different brands of transceivers. Contains the capacitor as required. Works for me. Gil W7GIL > All: > > I have a follow-up question regarding balanced mics and unbalanced > connections. I'm about to connect a balanced dynamic microphone (Heil > PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono > connection. > > One recommendation was to connect XLR pin #2 mic (+) to the tip of the > 1/8" jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or > ground is left floating with no connection. A 1/8" mono jack was > recommended for this setup. > > The other recommendation was to connect pin #2 to the tip and pin #1 and > #3 to the sleeve of the 1/8" jack. It was also suggested that I can use > either a 1/8" mono or a stereo TRS jack in both cases. > > So which is correct? > > Tony -K2MO > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gild at seanet.com > From prpntfmr at gmail.com Wed Jun 10 10:28:30 2020 From: prpntfmr at gmail.com (Frank C Richards) Date: Wed, 10 Jun 2020 10:28:30 -0400 Subject: [Elecraft] K3 on motorboat Message-ID: As with most everything on a boat, antenna and counterpoise systems are a compromise. You have to work with what you have. I agree that an elevated feedpoint is not the best, but on a fishing trawler support rigging for the outriggers moves up and down. With the antenna mounted on the mast it is out of harm's way( except for lighting ). There are all kinds of scenarios on work boats that have to be taken into account when installing a system and there will be compromises. Commercial and most other users don't have the luxury as, Hams do, to experiment and tweak systems. They just want the system to work. There are accepted practices that are proven to work well and if followed they will perform. I think that if you visit a yacht basin or commercial boat dock that you will see that the vertical is the antenna of choice unless the craft is large enough to support a longwire but will probably also have a vertical. Vertical antennas built for marine use,if properly installed on a yacht will look just fine and be no more distracting than radar, nav system, TV or Sat phone antennas. It's been a pleasure conversing with everyone, but I have to bow out. I have to travel and won't have internet for a while so I will say 73's to all. Please stay safe and be not afraid. Frank KB4VU . From g8kbvdave at googlemail.com Wed Jun 10 04:30:06 2020 From: g8kbvdave at googlemail.com (Dave B) Date: Wed, 10 Jun 2020 09:30:06 +0100 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: References: Message-ID: <951e21c4-46d7-1535-8b53-215209507cdb@googlemail.com> A question best asked on the WSJTx support list, where the developers hang out.. ??? https://wsjtx.groups.io/g/main There are plenty of people there using K3's etc. In any case, it may be more of a Hamlib issue, than WSJTx, and there is "lots" of work going on at the moment with Hamlib. 73. Dave G0WBX. On 09/06/2020 21:42, elecraft-request at mailman.qth.net wrote: > Re: [Elecraft] Two instances of WSJT on K3s with SubRX? -- Created on and sent from a Unix like PC running and using free and open source software: From g8kbvdave at googlemail.com Wed Jun 10 05:36:20 2020 From: g8kbvdave at googlemail.com (Dave B) Date: Wed, 10 Jun 2020 10:36:20 +0100 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up, Question In-Reply-To: References: Message-ID: Both would work. Sketch out the equivalent circuit and you'll see why. As to using a TRS or TS 1/8th (3.5mm) plug, you'll have to consult the radio's manual to see exactly what's connected to the tip and ring, and if the sleeve is actually connected directly to the chassis, not via a convoluted PCB ground trace. Twisted pair's help cancel out hum and interference pickup, /only/ if the input to the amp, mixer, or in this case the radio, is itself very well balanced around "ground/chassis" etc.?? As soon as you use it like an unbalanced system, such advantages are lost. But yes re the XLR Pin 1, that is a shield that should be connected to the radio's chassis in either case.? Irrespective of what you do with pin's 2 and 3... 73. Dave G0WBX. On 10/06/2020 00:27, elecraft-request at mailman.qth.net wrote: > I have a follow-up question regarding balanced mics and unbalanced > connections. I'm about to connect a balanced dynamic microphone (Heil > PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono > connection. > > One recommendation was to connect XLR pin #2 mic (+) to the tip of the > 1/8" jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or > ground is left floating with no connection. A 1/8" mono jack was > recommended for this setup. > > The other recommendation was to connect pin #2 to the tip and pin #1 and > #3 to the sleeve of the 1/8" jack. It was also suggested that I can use > either a 1/8" mono or a stereo TRS jack in both cases. > > So which is correct? > > Tony -K2MO -- Created on and sent from a Unix like PC running and using free and open source software: From lists at subich.com Wed Jun 10 11:00:57 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Wed, 10 Jun 2020 11:00:57 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <58206.24.22.164.93.1591797922.squirrel@wm.seanet.com> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <58206.24.22.164.93.1591797922.squirrel@wm.seanet.com> Message-ID: > A capacitor in series with one side of the balanced line. First, a dynamic mic element as is found in the PR-781 is neither balanced nor unbalanced. That is determined by the external connections (the input circuit to which the mic element is connected). I know of no current amateur transceiver that has a truly *balanced* microphone input. However, professional and semiprofessional audio mixers (as well as "effects processors", microphone equalizers and mic preamps) often have balanced microphone inputs. Second, a capacitor is not needed with the Elecraft K3/K3S - one simply needs to *TURN OFF BIAS* (MENU:MIC SEL and tap #2). The capacitor is only required for "Brand I" radios in which one can not turn off the bias. 73, ... Joe, W4TV On 2020-06-10 10:05 AM, Gil Drynan wrote: > > The PR-781 does not like the DC bias supplies from many newer ham radios. > A capacitor in series with one side of the balanced line. Heil offers a > specialized cable for three pin XLR mike to the mike jack on front of > different brands of transceivers. Contains the capacitor as required. > Works for me. > > Gil W7GIL > > > > >> All: >> >> I have a follow-up question regarding balanced mics and unbalanced >> connections. I'm about to connect a balanced dynamic microphone (Heil >> PR-781) to the rear mic input on my K3S which has a 1/8" unbalanced mono >> connection. >> >> One recommendation was to connect XLR pin #2 mic (+) to the tip of the >> 1/8" jack and pin #3 mic (-) to the sleeve. In this case, pin #1 or >> ground is left floating with no connection. A 1/8" mono jack was >> recommended for this setup. >> >> The other recommendation was to connect pin #2 to the tip and pin #1 and >> #3 to the sleeve of the 1/8" jack. It was also suggested that I can use >> either a 1/8" mono or a stereo TRS jack in both cases. >> >> So which is correct? >> >> Tony -K2MO >> From gordon.lapoint at gmail.com Wed Jun 10 11:48:14 2020 From: gordon.lapoint at gmail.com (Gordon LaPoint) Date: Wed, 10 Jun 2020 11:48:14 -0400 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <37169C8E-90D1-475F-9297-A5F8F845B0DF@gmail.com> References: <019b01d63e9e$6edf4850$4c9dd8f0$@LNAINC.com> <275E3D85-EF9B-4965-BC23-EEC827155491@me.com> <37169C8E-90D1-475F-9297-A5F8F845B0DF@gmail.com> Message-ID: <77510432-82a0-91ea-2ada-3867c16dab5d@gmail.com> Mike, ??? Thanks!? The batch file that Warren put on github is just what I was looking for! Gordon - N1MGO On 6/10/2020 9:41 AM, Mike - W5JR wrote: > Search for a recent email (a month or two ago) on this very topic from Warren/KD4Z. He?s written a Windows script that does this very thing, available at his github. Put it in your Windows Startup directory. Works great. Written for KAT500, KPA500 and KPA1500, up to two instances, for those remote SO2R stations. You edit the script with a few particulars of your station, all described within the script. > > > tnx > Mike / W5JR > Alpharetta GA > > >> On Jun 10, 2020, at 04:26, Gordon LaPoint wrote: >> >> Jack, >> I'm the original poster. I may be misstating what I want to accomplish. >> At the remote station location I want the KPA500 Remote software to start in host mode, with connection to the KPA500 hardware and the KAT500 remote software to also start in host mode connected to the hardware. >> Then I can start the software from my laptop and connect to the remote and see the KAT500 and KPA500. >> I can have the software start at the hardware site, but how do I get it to automatically connect to the hardware so the HOST mode is working? >> >> Remote site is where the hardware is located, KPA500, KAT500, Radio. >> Control site is where I am running the station from. >> I can use something like TeamViewer to log into the Control site and click on the "Host" button on the running software, but that is what I want to avoid. >> >> I use RCForb for normal operation, but that only controls the radio and the KPA500, it does not properly control the KAT500. >> And when I'm doing a contest using WriteLog Remote I don't have RCForb running so then I need the KPA500 remote to run the amp. >> >> Gordon - N1MGO >> >>> On 6/9/2020 17:42 PM, Jack Brindle via Elecraft wrote: >>> Are you referring to front or rear panel power? The K3 Utility can certainly power on a KPA500 if the rear panel switch is on. If that switch is off, it must be turned on before the front panel switch (or remote power-on) works. Now if you have a big relay in the power line to the KPA, it needs to be enabled as well. >>> >>> Setting up remote stations is a skill. There are many ways to do it, and each need to be evaluated to get it done the way _you_ want. >>> >>> By the way, to the original poster - if you are using a Mac, just add the two utilities to the user?s "Login Items? list in the User?s & Groups System Preferences pane. You just have to make sure that user is started up when the system powers up. There are other ways to do this, but by far that is the easiest. >>> >>> 73! >>> Jack, W6FB >>> >>> >>>> On Jun 9, 2020, at 1:42 PM, Lyn Norstad wrote: >>>> >>>> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. >>>> >>>> To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). >>>> >>>> In Windows 10, search "Startup Apps." >>>> >>>> 73 >>>> Lyn, W0LEN >>>> >>>> -----Original Message----- >>>> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net ] On Behalf Of Gordon LaPoint >>>> Sent: Tuesday, June 09, 2020 1:45 PM >>>> To: elecraft at mailman.qth.net >>>> Subject: [Elecraft] KAT500 Remote software and KPA500 remote software >>>> >>>> Can these remote software's be in host mode on startup? I run a remote >>>> and would like to have them connect to the hardware and be in host mode >>>> on boot of the computer. Right now I just log on remotely and start >>>> each one as needed. >>>> >>>> Thanks, >>>> >>>> Gordon - N1MGO >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to lyn at lnainc.com >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to jackbrindle at me.com >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to gordon.lapoint at gmail.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w5jr.lists at gmail.com From k7voradio at gmail.com Wed Jun 10 12:40:56 2020 From: k7voradio at gmail.com (Robert Sands) Date: Wed, 10 Jun 2020 09:40:56 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com>, Message-ID: From k2asp at kanafi.org Wed Jun 10 12:43:50 2020 From: k2asp at kanafi.org (Phil Kane) Date: Wed, 10 Jun 2020 09:43:50 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <569dc956-f6fa-debb-c511-e533d1858d06@foothill.net> References: <4792680E-BCCE-48B6-924E-E31A215FF6BD@w2xj.net> <0C877534-E329-4143-BA7E-FF1962334BB5@franciscan.org> <569dc956-f6fa-debb-c511-e533d1858d06@foothill.net> Message-ID: On 6/9/2020 4:46 PM, Fred Jensen wrote: > Hmmm ... "Isotropic spherical?"? "Proven to broadcast over 4,000 miles > with 1 watt?"? Actually, it looks like one of the driven elements of the > Russian Duga ["Woodpecker"] antenna.? $6K+ seems a little steep. If it lives up to its claims, I would consider it as a replacement for my ineffective mag-loop -- until I saw the $6K+ price tag. I have to look over my shoulder (or my checkbook's shoulder) to even scrape up 500 bucks to replace my standby batteries.... 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From w4sc at windstream.net Wed Jun 10 12:52:28 2020 From: w4sc at windstream.net (w4sc) Date: Wed, 10 Jun 2020 12:52:28 -0400 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> Message-ID: <55.9A.16791.BCF01EE5@smtp03.aqua.bos.sync.lan> How much doppler shift should be expected? Sent from Mail for Windows 10 From: W2xj Sent: Saturday, June 6, 2020 5:31 PM To: w4sc Cc: wes_n7ws at triconet.org; elecraft at mailman.qth.net Subject: Re: [Elecraft] K3(s) main oscillator calibration the problem with WWV is doppler shift. Sent from my iPad > On Jun 6, 2020, at 5:27 PM, w4sc wrote: > > ?I like the zero beat WWV method. Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment! If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better, > > Using a frequency counter I would think 0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect. > > Ben W4SC > > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net > From barrylazar2 at gmail.com Wed Jun 10 13:15:45 2020 From: barrylazar2 at gmail.com (Barry) Date: Wed, 10 Jun 2020 17:15:45 +0000 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> Message-ID: I strongly disagree. How many compromises were made to pull this off. You may use the laws of physics and math to design something, but unlike physics or math, engineering is not as precise. that means there are judgment calls made by design engineers. Physicists make judgemet call also, but only in data interpretation and not design. Sorry you couldn't be more wrong. 73, Barry K3NDM ------ Original Message ------ From: "Jim Brown" To: elecraft at mailman.qth.net Sent: 6/10/2020 1:53:14 AM Subject: Re: [Elecraft] K3 on motorboat. >On 6/9/2020 3:54 PM, Barry wrote: >>EE is an art and not science > >That is NOT even slightly true. ART did not put us on the moon or build the Mars rovers. Engineering is the thoughtful application of scientific principles and knowledge to solve practical problems. Without science as a base, it's little more than the infinite number of monkeys and typewriters producing Shakespeare. Nearly all practical designs involve some compromises. Great engineering is selecting (sometimes innovating) those solutions which work well for the particular problem at hand. > >73, Jim K9YC > > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to barrylazar2 at gmail.com -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From phystad at mac.com Wed Jun 10 13:50:48 2020 From: phystad at mac.com (Phil Hystad) Date: Wed, 10 Jun 2020 10:50:48 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> Message-ID: <3AEDB5BE-8D17-4B6F-8405-94B249F9577D@mac.com> The problem with this argument is the dichotomy of choice. The contrast between art and science was introduced into philosophical discussion several hundred years ago. Today, the discussion might better be divided into three categories: Art, Engineering, Science with the recognition that many things real or imagined may include parts from all. > On Jun 10, 2020, at 10:15 AM, Barry wrote: > > I strongly disagree. How many compromises were made to pull this off. You may use the laws of physics and math to design something, but unlike physics or math, engineering is not as precise. that means there are judgment calls made by design engineers. Physicists make judgemet call also, but only in data interpretation and not design. Sorry you couldn't be more wrong. > > 73, > Barry > K3NDM > > ------ Original Message ------ > From: "Jim Brown" > To: elecraft at mailman.qth.net > Sent: 6/10/2020 1:53:14 AM > Subject: Re: [Elecraft] K3 on motorboat. > >> On 6/9/2020 3:54 PM, Barry wrote: >>> EE is an art and not science >> >> That is NOT even slightly true. ART did not put us on the moon or build the Mars rovers. Engineering is the thoughtful application of scientific principles and knowledge to solve practical problems. Without science as a base, it's little more than the infinite number of monkeys and typewriters producing Shakespeare. Nearly all practical designs involve some compromises. Great engineering is selecting (sometimes innovating) those solutions which work well for the particular problem at hand. >> >> 73, Jim K9YC >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to barrylazar2 at gmail.com > > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to phystad at mac.com From rayalbers at gmail.com Wed Jun 10 13:58:11 2020 From: rayalbers at gmail.com (Ray Albers) Date: Wed, 10 Jun 2020 13:58:11 -0400 Subject: [Elecraft] [K3] Sub receiver intermittant failures Message-ID: I bought my K3 used. It's now a bit over six years old (S/N 8240). The seller kindly included the manual, original invoice, a repair invoice and even the Fred Cady book. The K3 was factory assembled, with a factory-installed KRX3 subreceiver and the BNC auxiliary antenna connection. If I had bought a new K3 or K3S I probably would not have bothered getting the subreceiver, but since I have it, I figured I may as well put it to some use. I don't chase DX but the notion of experimenting with diversity reception interested me. So I threw a chunk of wire over the roof and connected it to the BNC input. Admittedly not a really good diversity antenna (much too close to the main antenna, for one thing) but OK to play with. When I found that the Carrier Operated Relay was operating as I sent CW, in order to protect the sub-receiver, I stopped until I could get and install an Array Solutions Receiver Front End Protector. So I had many months of fun and even found that at times there was enough diversity between the antennas to help with reception in the face of fast QSB. And then suddenly the sub started failing. I check it when turning the radio on, and often the sub is working but then after a while it stops. It doesn't seem to be correlated to transmitting, i.e., it may stop after I've been sending but not always and never right away. There has even been a time or two when it didn't work initially but then came back to life after a while. Often it will work on 20 and up but not on 80, 40, and 30. I've opened the radio, taken the cover off the sub, and poked, wiggled and re-seated everything I could get my hands on. I've even tried this poking while the radio was powered up and the sub was quiet, to see if any poking could bring it to life. Nada. I suppose at this point the "right" thing to do would be to send the radio to Elecraft and I may do that at some distant future point, but right now I feel that I don't want the sub badly enough to warrant the expense and time. Of course if meanwhile anyone has a miracle cure to suggest, that'd be great! Thanks for listening. 73 Ray K2HYD From rmcgraw at blomand.net Wed Jun 10 14:06:29 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Wed, 10 Jun 2020 13:06:29 -0500 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: <55.9A.16791.BCF01EE5@smtp03.aqua.bos.sync.lan> References: <42B8784B-6C44-4283-A85D-1A09D494BEA5@w2xj.net> <55.9A.16791.BCF01EE5@smtp03.aqua.bos.sync.lan> Message-ID: In referencing TF.NIST.GOV on page 251, I find it stated; "When high accuracy is not required, probably and fastest way of comparing the frequency of an oscillator to a broadcast standard is the familiar heterodyne or zero beat method. " And then on page 253, I find it stated; " Usually, however, it is difficult to adjust an oscillator to exactly zero beat with an HF carrier beyond the ground wave range of the transmitter.? The problem arises from rapid fluctuations in the received signal strength and from propagation flutter in the received frequency." References are: THE USES AND LIMITATION OF HF STANDARD BROADCAST FOR TIME AND FREQUENCY COMPARISON.? John T. Stanley, NIST. As I indicated earlier, a frequency accuracy of +/- 1 Hz for ham radio purposes is adequate.? Likewise for time accuracy +/- 0.1 second is adequate. 73 Bob, K4TAX On 6/10/2020 11:52 AM, w4sc wrote: > How much doppler shift should be expected? > > Sent from Mail for Windows 10 > > From: W2xj > Sent: Saturday, June 6, 2020 5:31 PM > To: w4sc > Cc: wes_n7ws at triconet.org; elecraft at mailman.qth.net > Subject: Re: [Elecraft] K3(s) main oscillator calibration > > the problem with WWV is doppler shift. > > Sent from my iPad > >> On Jun 6, 2020, at 5:27 PM, w4sc wrote: >> >> ?I like the zero beat WWV method. Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment! If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better, >> >> Using a frequency counter I would think 0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect. >> >> Ben W4SC >> >> >> Sent from Mail for Windows 10 >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w2xj at w2xj.net >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From k6dgw at foothill.net Wed Jun 10 14:18:08 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Wed, 10 Jun 2020 11:18:08 -0700 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> Message-ID: <98033c81-5d79-b269-94c7-8ecb511b157f@foothill.net> Speaking somewhat broadly, Science is basically a quest for understanding of the physical world we live in.? Engineering is the science of intelligent tradeoffs in a quest to create "stuff" using the science and technology.? Many of the tradeoffs are technical.? Others are economic, ergonomic, environmental, legal, moral, ethical, and political among others. Elecraft radios do not allow user adjustment of keying waveshape and timing which is a tradeoff.? Guaranteed optimal on-air signal quality vs maximum user configurability with attendant possibility of crummy signals. About 30 min north of our previous home in Auburn CA, you will find Grass Valley CA, epicenter of hard rock gold mining in the early 20th century.? The mines interconnect, are nearly a mile deep, have hundreds of miles of tunnels, still harbor a huge store of gold ... and are filled with water.? A visiting friend observed that, with today's engineering and technology and the current price of gold, one would expect that de-watering the mine shafts and recovering the gold would be very profitable but no one is doing it.? At $1,100/oz, that may be true.? There is a tradeoff however ... "Where do you put the water?"? It is highly and persistently toxic to people, wildlife, and vegetation, and there is a whole lot of it in the mines [a tradeoff similar to that faced by the nuclear power industry as well].? Don't hold your breath for a 21st century gold rush in N. California. It could be said that balancing all of those tradeoffs includes elements of art, I really don't know.? I do know that being successful in the tradeoffs is much harder than the pure science may appear at first glance. [:=) 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/9/2020 10:53 PM, Jim Brown wrote: > On 6/9/2020 3:54 PM, Barry wrote: >> EE is an art and not science > > That is NOT even slightly true. ART did not put us on the moon or > build the Mars rovers. Engineering is the thoughtful application of > scientific principles and knowledge to solve practical problems. > Without science as a base, it's little more than the infinite number > of monkeys and typewriters producing Shakespeare. Nearly all practical > designs involve some compromises. Great engineering is selecting > (sometimes innovating) those solutions which work well for the > particular problem at hand. > > 73, Jim K9YC From c-hawley at illinois.edu Wed Jun 10 14:26:43 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Wed, 10 Jun 2020 18:26:43 +0000 Subject: [Elecraft] [K3] Sub receiver intermittant failures In-Reply-To: References: Message-ID: <8EE47F64-E81D-4D35-9E18-95319300DDCF@illinois.edu> Maybe you could remove the sub and send it for evaluation somewhat economically Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Jun 10, 2020, at 12:59 PM, Ray Albers wrote: > > ?I bought my K3 used. It's now a bit over six years old (S/N 8240). The > seller kindly included the manual, original invoice, a repair invoice and > even the Fred Cady book. The K3 was factory assembled, with a > factory-installed KRX3 subreceiver and the BNC auxiliary antenna connection. > > If I had bought a new K3 or K3S I probably would not have bothered getting > the subreceiver, but since I have it, I figured I may as well put it to > some use. I don't chase DX but the notion of experimenting with diversity > reception interested me. So I threw a chunk of wire over the roof and > connected it to the BNC input. Admittedly not a really good diversity > antenna (much too close to the main antenna, for one thing) but OK to play > with. When I found that the Carrier Operated Relay was operating as I sent > CW, in order to protect the sub-receiver, I stopped until I could get and > install an Array Solutions Receiver Front End Protector. > > So I had many months of fun and even found that at times there was enough > diversity between the antennas to help with reception in the face of fast > QSB. And then suddenly the sub started failing. > > I check it when turning the radio on, and often the sub is working but > then after a while it stops. It doesn't seem to be correlated to > transmitting, i.e., it may stop after I've been sending but not always and > never right away. There has even been a time or two when it didn't work > initially but then came back to life after a while. Often it will work on > 20 and up but not on 80, 40, and 30. > > I've opened the radio, taken the cover off the sub, and poked, wiggled and > re-seated everything I could get my hands on. I've even tried this poking > while the radio was powered up and the sub was quiet, to see if any poking > could bring it to life. Nada. > > I suppose at this point the "right" thing to do would be to send the radio > to Elecraft and I may do that at some distant future point, but right now I > feel that I don't want the sub badly enough to warrant the expense and time. > > Of course if meanwhile anyone has a miracle cure to suggest, that'd be > great! > > Thanks for listening. > > 73 > Ray K2HYD > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From jim at jtmiller.com Wed Jun 10 14:26:58 2020 From: jim at jtmiller.com (Jim Miller) Date: Wed, 10 Jun 2020 14:26:58 -0400 Subject: [Elecraft] Two instances of WSJT on K3s with SubRX? In-Reply-To: References: Message-ID: I have it working fine now. Thanks for all the suggestions! jim ab3cv On Mon, Jun 8, 2020 at 4:23 PM Jim Miller wrote: > Has anyone run two instances of WSJT on a single K3s with the SubRX so as > to be able to monitor both 50.323 and 50.313? > > Of course I'll only be able to transmit on the instance that has the Main > RX but it would be handy to be able to see both. > > Thanks > > Jim ab3cv > From lists at w2irt.net Wed Jun 10 14:38:31 2020 From: lists at w2irt.net (Peter Dougherty) Date: Wed, 10 Jun 2020 14:38:31 -0400 Subject: [Elecraft] KPA1500 Wake On Lan not working Message-ID: <003c01d63f56$580de010$0829a030$@w2irt.net> Wake On LAN is not functioning on my KPA-1500 using the remote software. I have the Wake On Lan and DHCP boxes checked in the Network tab in the configuration settings within the KPA1500 Utility program, and the LAN settings (including the IP address) are correct. The only condition in which the remote software (v1.27) can find the KPA1500 is when the amp is manually powered on, after which it operates fine. Once I power down the amp there is no condition in which I can reattach the software remotely-I must power the amp on from the front panel button. In addition to this, just pressing the "connect" button won't do it either. I have to press the TEST button, wait until it finds the amp, then press CONNECT and it connects normally. At the moment this isn't a deal breaker, but I intend to remote the amp next week to a relatively inaccessible space in the basement so I'd like to get this solved as soon as possible. As a side issue, the DHCP IP address had changed at some point, and the remote software did NOT pick up the change. I had to hunt in my router for the MAC address and enter the new IPV4 address manually into the remote software. --------------------------------------------- Please and thanks. Peter, W2IRT From k2asp at kanafi.org Wed Jun 10 14:38:50 2020 From: k2asp at kanafi.org (Phil Kane) Date: Wed, 10 Jun 2020 11:38:50 -0700 Subject: [Elecraft] Fwd: K3 on motorboat. In-Reply-To: References: Message-ID: <53462524-faa8-3a85-2596-a55a507cd1a1@kanafi.org> On 6/9/2020 10:53 PM, Jim Brown wrote: >> EE is an art and not science > > That is NOT even slightly true. ART did not put us on the moon or build > the Mars rovers. Engineering is the thoughtful application of scientific > principles and knowledge to solve practical problems. Without science as > a base, it's little more than the infinite number of monkeys and > typewriters producing Shakespeare. Nearly all practical designs involve > some compromises. Great engineering is selecting (sometimes innovating) > those solutions which work well for the particular problem at hand. There is an ongoing discussion group of the National Society of Professional Engineers postulating over the differences between curricula in Engineering (more emphasis on why it works) and Engineering Technology (more emphasis on how it works). I refuse to get into that "food fight". I had - and still have to some extent - no problem getting my hands dirty (to the limit of my disabilities, that is). Philip M. Kane Esq / P.E. - K2ASP VP - General Counsel & Executive Engineer CSI Telecommunications, Inc. - Consulting Engineers San Francisco, CA - Beaverton, OR (Main Office moving to Hamilton Landing, Novato, CA) From W2xj at w2xj.net Wed Jun 10 14:42:55 2020 From: W2xj at w2xj.net (W2xj) Date: Wed, 10 Jun 2020 14:42:55 -0400 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: References: Message-ID: adequate is not perfect. YMMV Sent from my iPad > On Jun 10, 2020, at 2:07 PM, Bob McGraw K4TAX wrote: > > ?In referencing TF.NIST.GOV on page 251, I find it stated; > > "When high accuracy is not required, probably and fastest way of comparing the frequency of an oscillator to a broadcast standard is the familiar heterodyne or zero beat method. " > > And then on page 253, I find it stated; > > " Usually, however, it is difficult to adjust an oscillator to exactly zero beat with an HF carrier beyond the ground wave range of the transmitter. The problem arises from rapid fluctuations in the received signal strength and from propagation flutter in the received frequency." > > References are: THE USES AND LIMITATION OF HF STANDARD BROADCAST FOR TIME AND FREQUENCY COMPARISON. John T. Stanley, NIST. > > As I indicated earlier, a frequency accuracy of +/- 1 Hz for ham radio purposes is adequate. Likewise for time accuracy +/- 0.1 second is adequate. > > 73 > > Bob, K4TAX > > >> On 6/10/2020 11:52 AM, w4sc wrote: >> How much doppler shift should be expected? >> >> Sent from Mail for Windows 10 >> >> From: W2xj >> Sent: Saturday, June 6, 2020 5:31 PM >> To: w4sc >> Cc: wes_n7ws at triconet.org; elecraft at mailman.qth.net >> Subject: Re: [Elecraft] K3(s) main oscillator calibration >> >> the problem with WWV is doppler shift. >> >> Sent from my iPad >> >>>> On Jun 6, 2020, at 5:27 PM, w4sc wrote: >>> >>> ?I like the zero beat WWV method. Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment! If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better, >>> >>> Using a frequency counter I would think 0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect. >>> >>> Ben W4SC >>> >>> >>> Sent from Mail for Windows 10 >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to w2xj at w2xj.net >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net From rmcgraw at blomand.net Wed Jun 10 14:45:16 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Wed, 10 Jun 2020 13:45:16 -0500 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: References: Message-ID: And perfect will never occur.? So one best think of adequate. 73 Bob, K4TAX On 6/10/2020 1:42 PM, W2xj wrote: > adequate is not perfect. YMMV > > Sent from my iPad > >> On Jun 10, 2020, at 2:07 PM, Bob McGraw K4TAX wrote: >> >> ?In referencing TF.NIST.GOV on page 251, I find it stated; >> >> "When high accuracy is not required, probably and fastest way of comparing the frequency of an oscillator to a broadcast standard is the familiar heterodyne or zero beat method." >> >> And then on page 253, I find it stated; >> >> " Usually, however, it is difficult to adjust an oscillator to exactly zero beat with an HF carrier beyond the ground wave range of the transmitter. The problem arises from rapid fluctuations in the received signal strength and from propagation flutter in the received frequency." >> >> References are: THE USES AND LIMITATION OF HF STANDARD BROADCAST FOR TIME AND FREQUENCY COMPARISON. John T. Stanley, NIST. >> >> As I indicated earlier, a frequency accuracy of +/- 1 Hz for ham radio purposes is adequate. Likewise for time accuracy +/- 0.1 second is adequate. >> >> 73 >> >> Bob, K4TAX >> >> >>> On 6/10/2020 11:52 AM, w4sc wrote: >>> How much doppler shift should be expected? >>> >>> Sent from Mail for Windows 10 >>> >>> From: W2xj >>> Sent: Saturday, June 6, 2020 5:31 PM >>> To: w4sc >>> Cc: wes_n7ws at triconet.org; elecraft at mailman.qth.net >>> Subject: Re: [Elecraft] K3(s) main oscillator calibration >>> >>> the problem with WWV is doppler shift. >>> >>> Sent from my iPad >>> >>>>> On Jun 6, 2020, at 5:27 PM, w4sc wrote: >>>> ?I like the zero beat WWV method. Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment! If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better, >>>> >>>> Using a frequency counter I would think 0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect. >>>> >>>> Ben W4SC >>>> >>>> >>>> Sent from Mail for Windows 10 >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to w2xj at w2xj.net >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to rmcgraw at blomand.net >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w2xj at w2xj.net > From W2xj at w2xj.net Wed Jun 10 14:53:50 2020 From: W2xj at w2xj.net (W2xj) Date: Wed, 10 Jun 2020 14:53:50 -0400 Subject: [Elecraft] K3(s) main oscillator calibration In-Reply-To: References: Message-ID: <09E94794-6A79-449B-A12D-E54D5C879DC2@w2xj.net> I have higher standards and always have. Sent from my iPad > On Jun 10, 2020, at 2:45 PM, Bob McGraw K4TAX wrote: > > ?And perfect will never occur. So one best think of adequate. > > 73 > > Bob, K4TAX > >> On 6/10/2020 1:42 PM, W2xj wrote: >> adequate is not perfect. YMMV >> >> Sent from my iPad >> >>>> On Jun 10, 2020, at 2:07 PM, Bob McGraw K4TAX wrote: >>> >>> ?In referencing TF.NIST.GOV on page 251, I find it stated; >>> >>> "When high accuracy is not required, probably and fastest way of comparing the frequency of an oscillator to a broadcast standard is the familiar heterodyne or zero beat method." >>> >>> And then on page 253, I find it stated; >>> >>> " Usually, however, it is difficult to adjust an oscillator to exactly zero beat with an HF carrier beyond the ground wave range of the transmitter. The problem arises from rapid fluctuations in the received signal strength and from propagation flutter in the received frequency." >>> >>> References are: THE USES AND LIMITATION OF HF STANDARD BROADCAST FOR TIME AND FREQUENCY COMPARISON. John T. Stanley, NIST. >>> >>> As I indicated earlier, a frequency accuracy of +/- 1 Hz for ham radio purposes is adequate. Likewise for time accuracy +/- 0.1 second is adequate. >>> >>> 73 >>> >>> Bob, K4TAX >>> >>> >>>> On 6/10/2020 11:52 AM, w4sc wrote: >>>> How much doppler shift should be expected? >>>> >>>> Sent from Mail for Windows 10 >>>> >>>> From: W2xj >>>> Sent: Saturday, June 6, 2020 5:31 PM >>>> To: w4sc >>>> Cc: wes_n7ws at triconet.org; elecraft at mailman.qth.net >>>> Subject: Re: [Elecraft] K3(s) main oscillator calibration >>>> >>>> the problem with WWV is doppler shift. >>>> >>>> Sent from my iPad >>>> >>>>>> On Jun 6, 2020, at 5:27 PM, w4sc wrote: >>>>> ?I like the zero beat WWV method. Used it in the Navy to calibrate / PM the 10MHz frequency standards aboard ship. Requires the least amount of test equipment! If you can receive WWV on 20MHz to calibrate the K3/K3S, all the better, >>>>> >>>>> Using a frequency counter I would think 0.1Hz resolution and attending accuracy would be in order, plus an accurate time base in the counter, GPS locked,,, or oven-ized, on all the time reference ,,, ect. >>>>> >>>>> Ben W4SC >>>>> >>>>> >>>>> Sent from Mail for Windows 10 >>>>> >>>>> ______________________________________________________________ >>>>> Elecraft mailing list >>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>>> Help: http://mailman.qth.net/mmfaq.htm >>>>> Post: mailto:Elecraft at mailman.qth.net >>>>> >>>>> This list hosted by: http://www.qsl.net >>>>> Please help support this email list: http://www.qsl.net/donate.html >>>>> Message delivered to w2xj at w2xj.net >>>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to rmcgraw at blomand.net >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to w2xj at w2xj.net >> > > From w4sc at windstream.net Wed Jun 10 14:58:15 2020 From: w4sc at windstream.net (w4sc) Date: Wed, 10 Jun 2020 14:58:15 -0400 Subject: [Elecraft] K3(s) main oscillator calibration Message-ID: <21.D2.16791.64D21EE5@smtp03.aqua.bos.sync.lan> I agree 100%. However, the implication for using it for the reference oscillator calibration was / could be perceived as not a good way. John N8UR did an interesting study on the effects. https://www.febo.com/pages/hf_stability/ 73 Ben W4SC Sent from Mail for Windows 10 From jackbrindle at me.com Wed Jun 10 15:00:14 2020 From: jackbrindle at me.com (Jack Brindle) Date: Wed, 10 Jun 2020 12:00:14 -0700 Subject: [Elecraft] [K3] Sub receiver intermittant failures In-Reply-To: <8EE47F64-E81D-4D35-9E18-95319300DDCF@illinois.edu> References: <8EE47F64-E81D-4D35-9E18-95319300DDCF@illinois.edu> Message-ID: <2BA3D9DE-996F-4E16-BCE3-B9C068C3B9D2@me.com> That probably wouldn?t help. In this case the system includes the SubRx, the Synthesizer and all the interconnects and cables that connect these to the rest of the radio. I would check the interconnects, especially the tmp coax cables that go from the SubRx to the rear panel connector and to the Synthesizer. Also make sure the SubRx synthesizer is working properly. That might also explain the SubRx issue. 73! Jack, W6FB > On Jun 10, 2020, at 11:26 AM, hawley, charles j jr wrote: > > Maybe you could remove the sub and send it for evaluation somewhat economically > > Chuck Jack Hawley > KE9UW > > Sent from my iPhone, cjack > >> On Jun 10, 2020, at 12:59 PM, Ray Albers wrote: >> >> ?I bought my K3 used. It's now a bit over six years old (S/N 8240). The >> seller kindly included the manual, original invoice, a repair invoice and >> even the Fred Cady book. The K3 was factory assembled, with a >> factory-installed KRX3 subreceiver and the BNC auxiliary antenna connection. >> >> If I had bought a new K3 or K3S I probably would not have bothered getting >> the subreceiver, but since I have it, I figured I may as well put it to >> some use. I don't chase DX but the notion of experimenting with diversity >> reception interested me. So I threw a chunk of wire over the roof and >> connected it to the BNC input. Admittedly not a really good diversity >> antenna (much too close to the main antenna, for one thing) but OK to play >> with. When I found that the Carrier Operated Relay was operating as I sent >> CW, in order to protect the sub-receiver, I stopped until I could get and >> install an Array Solutions Receiver Front End Protector. >> >> So I had many months of fun and even found that at times there was enough >> diversity between the antennas to help with reception in the face of fast >> QSB. And then suddenly the sub started failing. >> >> I check it when turning the radio on, and often the sub is working but >> then after a while it stops. It doesn't seem to be correlated to >> transmitting, i.e., it may stop after I've been sending but not always and >> never right away. There has even been a time or two when it didn't work >> initially but then came back to life after a while. Often it will work on >> 20 and up but not on 80, 40, and 30. >> >> I've opened the radio, taken the cover off the sub, and poked, wiggled and >> re-seated everything I could get my hands on. I've even tried this poking >> while the radio was powered up and the sub was quiet, to see if any poking >> could bring it to life. Nada. >> >> I suppose at this point the "right" thing to do would be to send the radio >> to Elecraft and I may do that at some distant future point, but right now I >> feel that I don't want the sub badly enough to warrant the expense and time. >> >> Of course if meanwhile anyone has a miracle cure to suggest, that'd be >> great! >> >> Thanks for listening. >> >> 73 >> Ray K2HYD >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to c-hawley at illinois.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From gt-i at gmx.net Wed Jun 10 15:25:07 2020 From: gt-i at gmx.net (gt-i at gmx.net) Date: Wed, 10 Jun 2020 21:25:07 +0200 Subject: [Elecraft] K3 working on motorboats - possible In-Reply-To: References: <9CD18F7BAB72E447987F465BD087D603DBE2F2B1@SRV-SBS1.kaletsch.local> <3710e4dc-f569-d4cc-3105-d2a16df4a44f@gmx.net> Message-ID: Jim, you are right, too often we mean counterpoise and say ground. Hopefully Peter can start doing his experiments based on our wisdom and I'm curios what will work ok for him. 73 Gernot DF5RF Am 09.06.2020 um 22:42 schrieb Jim Brown: > On 6/9/2020 1:21 PM, gt-i at gmx.net wrote: >> anywhere then you either need a long vertical plus good ground as >> mentioned already > > WRONG. An end-fed wire needs a COUNTERPOISE, not a connection to > mother earth. A counterpoise is a low resistance conductor that > provides a return for the current and the field produced by the > "intentional" part of the antenna, and the counterpoise IS a part of > the antenna. Salt water IS an effective counterpoise because it is a > good conductor; fresh water is NOT, because it is NOT a good > conductor, so it burns transmitter power. > > Likewise, a ground rod is a lousy counterpoise, because the earth is a > big resistor, and can easily burn much more than half the > transmitter's power. Radials serve as both a counterpoise and a shield > ("screen" in British English) -- they shield the field from lossy > earth AND serve as a return for the current and the field. > > 73, Jim K9YC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gt-i at gmx.net From keith at elecraft.com Wed Jun 10 15:34:55 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Wed, 10 Jun 2020 12:34:55 -0700 Subject: [Elecraft] [K3] Sub receiver intermittant failures In-Reply-To: References: Message-ID: <7aad61f5-4e3a-aa89-23f6-ea77d852b614@elecraft.com> Do NOT send in just the sub! (also an intermittent will invariably NOT fail when here at Elecraft). Like Jack said, check the sub KSYN3 by tapping DISP and look for PL2 voltages or SYN2 OK (tech mode must be on). When wiggling all the cables, don't forget the one at the back of the sub. Look for green LED if you have the newer KSYN3A. BUT if it works on some bands, and not others, it points to the KSYN3 if older, run the VCO cal *on the sub receiver* if you have the old KSYN3 (shows PL2 voltages vs SYN2). (a BPF or LPF problem would be by band "pairs", not the whole range below 20M). When "quiet" is it just low sensitivity? Or dead completely? Is it dead on BOTH antenna inputs to the sub, IE Aux and Main sharing? Toggle back and forth repeatedly. When dead, does toggling JUST the SUB on and off fix it? Keith WE6R Elecraft K3 Tech. From c-hawley at illinois.edu Wed Jun 10 15:39:10 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Wed, 10 Jun 2020 19:39:10 +0000 Subject: [Elecraft] [K3] Sub receiver intermittant failures In-Reply-To: <2BA3D9DE-996F-4E16-BCE3-B9C068C3B9D2@me.com> References: <2BA3D9DE-996F-4E16-BCE3-B9C068C3B9D2@me.com> Message-ID: <95036398-4460-4F32-AF6C-64A8A6739866@illinois.edu> Maybe swap synthesizers Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Jun 10, 2020, at 2:00 PM, Jack Brindle via Elecraft wrote: > > ?That probably wouldn?t help. In this case the system includes the SubRx, the Synthesizer and all the interconnects and cables that connect these to the rest of the radio. > > I would check the interconnects, especially the tmp coax cables that go from the SubRx to the rear panel connector and to the Synthesizer. Also make sure the SubRx synthesizer is working properly. That might also explain the SubRx issue. > > 73! > Jack, W6FB > > >> On Jun 10, 2020, at 11:26 AM, hawley, charles j jr wrote: >> >> Maybe you could remove the sub and send it for evaluation somewhat economically >> >> Chuck Jack Hawley >> KE9UW >> >> Sent from my iPhone, cjack >> >>>> On Jun 10, 2020, at 12:59 PM, Ray Albers wrote: >>> >>> ?I bought my K3 used. It's now a bit over six years old (S/N 8240). The >>> seller kindly included the manual, original invoice, a repair invoice and >>> even the Fred Cady book. The K3 was factory assembled, with a >>> factory-installed KRX3 subreceiver and the BNC auxiliary antenna connection. >>> >>> If I had bought a new K3 or K3S I probably would not have bothered getting >>> the subreceiver, but since I have it, I figured I may as well put it to >>> some use. I don't chase DX but the notion of experimenting with diversity >>> reception interested me. So I threw a chunk of wire over the roof and >>> connected it to the BNC input. Admittedly not a really good diversity >>> antenna (much too close to the main antenna, for one thing) but OK to play >>> with. When I found that the Carrier Operated Relay was operating as I sent >>> CW, in order to protect the sub-receiver, I stopped until I could get and >>> install an Array Solutions Receiver Front End Protector. >>> >>> So I had many months of fun and even found that at times there was enough >>> diversity between the antennas to help with reception in the face of fast >>> QSB. And then suddenly the sub started failing. >>> >>> I check it when turning the radio on, and often the sub is working but >>> then after a while it stops. It doesn't seem to be correlated to >>> transmitting, i.e., it may stop after I've been sending but not always and >>> never right away. There has even been a time or two when it didn't work >>> initially but then came back to life after a while. Often it will work on >>> 20 and up but not on 80, 40, and 30. >>> >>> I've opened the radio, taken the cover off the sub, and poked, wiggled and >>> re-seated everything I could get my hands on. I've even tried this poking >>> while the radio was powered up and the sub was quiet, to see if any poking >>> could bring it to life. Nada. >>> >>> I suppose at this point the "right" thing to do would be to send the radio >>> to Elecraft and I may do that at some distant future point, but right now I >>> feel that I don't want the sub badly enough to warrant the expense and time. >>> >>> Of course if meanwhile anyone has a miracle cure to suggest, that'd be >>> great! >>> >>> Thanks for listening. >>> >>> 73 >>> Ray K2HYD >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to c-hawley at illinois.edu >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jackbrindle at me.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From radiok4ia at gmail.com Wed Jun 10 15:52:45 2020 From: radiok4ia at gmail.com (Buck) Date: Wed, 10 Jun 2020 15:52:45 -0400 Subject: [Elecraft] [K3] Sub receiver intermittant failures In-Reply-To: <8EE47F64-E81D-4D35-9E18-95319300DDCF@illinois.edu> References: <8EE47F64-E81D-4D35-9E18-95319300DDCF@illinois.edu> Message-ID: <0f1ced97-9faa-8abe-1289-992e189eb835@Gmail.com> Check the obvious. Are you sure you didn't accidentally turn down the RF and/or AF gain on the SubRx? I know how easy it is to do. I have seen me do it. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 6/10/2020 2:26 PM, hawley, charles j jr wrote: > Maybe you could remove the sub and send it for evaluation somewhat economically > > Chuck Jack Hawley > KE9UW > > Sent from my iPhone, cjack > >> On Jun 10, 2020, at 12:59 PM, Ray Albers wrote: >> >> ?I bought my K3 used. It's now a bit over six years old (S/N 8240). The >> seller kindly included the manual, original invoice, a repair invoice and >> even the Fred Cady book. The K3 was factory assembled, with a >> factory-installed KRX3 subreceiver and the BNC auxiliary antenna connection. >> >> If I had bought a new K3 or K3S I probably would not have bothered getting >> the subreceiver, but since I have it, I figured I may as well put it to >> some use. I don't chase DX but the notion of experimenting with diversity >> reception interested me. So I threw a chunk of wire over the roof and >> connected it to the BNC input. Admittedly not a really good diversity >> antenna (much too close to the main antenna, for one thing) but OK to play >> with. When I found that the Carrier Operated Relay was operating as I sent >> CW, in order to protect the sub-receiver, I stopped until I could get and >> install an Array Solutions Receiver Front End Protector. >> >> So I had many months of fun and even found that at times there was enough >> diversity between the antennas to help with reception in the face of fast >> QSB. And then suddenly the sub started failing. >> >> I check it when turning the radio on, and often the sub is working but >> then after a while it stops. It doesn't seem to be correlated to >> transmitting, i.e., it may stop after I've been sending but not always and >> never right away. There has even been a time or two when it didn't work >> initially but then came back to life after a while. Often it will work on >> 20 and up but not on 80, 40, and 30. >> >> I've opened the radio, taken the cover off the sub, and poked, wiggled and >> re-seated everything I could get my hands on. I've even tried this poking >> while the radio was powered up and the sub was quiet, to see if any poking >> could bring it to life. Nada. >> >> I suppose at this point the "right" thing to do would be to send the radio >> to Elecraft and I may do that at some distant future point, but right now I >> feel that I don't want the sub badly enough to warrant the expense and time. >> >> Of course if meanwhile anyone has a miracle cure to suggest, that'd be >> great! >> >> Thanks for listening. >> >> 73 >> Ray K2HYD >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to c-hawley at illinois.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radiok4ia at gmail.com > From donwilh at embarqmail.com Wed Jun 10 16:20:44 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Wed, 10 Jun 2020 16:20:44 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> Message-ID: Barry, Well, when I was with IBM, my title was Engineer/Scientist, so I got credit for both. Engineers have the education and training to do research as well as making those judgements during design that sometimes result in compromises. 73, Don W3FPR On 6/10/2020 1:15 PM, Barry wrote: > I strongly disagree. How many compromises were made to pull this off. > You may use the laws of physics and math to design something, but unlike > physics or math, engineering is not as precise. that means there are > judgment calls made by design engineers. Physicists make judgemet call > also, but only in data interpretation and not design. Sorry you couldn't > be more wrong. > From elanzl at sbcglobal.net Wed Jun 10 17:01:00 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Wed, 10 Jun 2020 21:01:00 +0000 (UTC) Subject: [Elecraft] SSB Net for 5-7-2020 References: <1257416453.2547371.1591822860053.ref@mail.yahoo.com> Message-ID: <1257416453.2547371.1591822860053@mail.yahoo.com> Here is the list of stations checking in to the 20m SSB net for June 7, 2020. Thank you to the relay stations listed below for your help in checking in additional stations. The net meets on Sundays at 1800Z on 14.303.5. We also have a 40 m net on 7.280 at 1845Z. And a brand new 80m net at 0100Z Sundays on 3940. The 80 meter net is the creation of Paul KN9AVO and he is located in Eastern Indiana. Hope to hear everyone next Sunday. Eric WB9JNZ Call???????????? Name????? State?????? Radio????? Serial #?? QRP?????????? Notes WB9JNZ?????????? Eric??????????????? IL??????????????????? K3????????????????? 4017????????????? ??????????????? ??NetControl??????? ? NC0JW???????????? Jim???????????????? CO???????????????? KX3??????????????? 1356???????? ??????????????????? ? ? Relay Station?????? ??? ? KO5V?????????????? Jim?????????????? ?? NM????????????? ? K2/100?????? ? ?? 7225????????????? ????????????????? Relay Station???? ??? ? WM6P????????????? Steve?????????? ?? GA??????????????? K3S?????????????? 11453??????????? ???????????????????????????????????????????????? ? K8NU/7??????????? Carl????????????? ?? OH/WA????????? Yaesu FT??????? 2000????????????? ????????????????? Relay Station???? ??? ? N6JW/M?????????? John??????????? ? ? CA???????????????? KX3????????????? ? ? 515??????????????? ???????????????????????????????????????????????? ? K6WDE???????? ?? Dave??????????? ?? CA???????????????? KX3????????????? ? 4599????????????? ???????????????????????????????????????????????? ? K7BRR???????????? Bill?????????????????? AZ???????????????? K3S????????????? 10939??????????? ???????????????????????????????????????????????? ? KB9AVO?????????? Paul???????????? ? ? IN????????????????? K3S?????????????? 11103??????????? ???????????????????????????????????????????????? ? KS6F??????????????? Guy ???????????? ?? CA????????????? ?? K3S????????????? 11672??????????? ???????????????????????????????????????????????? ? AE1P??????????????? Neil?????????????? ?? NH???????????????? K3????????????????? 2979????????????? ?????????????????Relay Station???? ??? ? W1DFB??????????? Don????????????? ? ? AZ???????????????? K3????????????????? 2937????????????? ???????????????????????????????????????????????? ? K6VWE??????????? Stan???????????????? MI??????????????? ?? K3???????????????? ? 650??????????????? ???????????????????????????????????????????????? ? W4DML??????? ? ? Doug??????????? ?? TN????????????? ? ? K3???????????????? 6433????????????? ???????????????????????????????????????????????? ? W7QHD????????? ? Kurt???????????? ? ? AZ????????????????? K2/100??????? ? 1538????????????? ???????????????????????????????????????????????? ? AE6JV?????????????? Bill????????????????? CA????????????? ? ? K3???????????????? 6299????????????? ???????????????????????????????????????????????? ? K0JFJ??????????????? Nick???????????? ?? MN????????????? ?? KX2????????????? ? 3056????????????? ???????????????????????????????????????????????? ? AE1E???????????????? Ken????????????? ? NM???????????? ? ? K3S????????????? 11611??????????? ???????????????????????????????????????????????? ? KS7D/P???????????? Mike?????????? ? ? OR????????????? ? ? KX3?????????????? 1847????????????? ???????????????????????????????????????????????? ? NK9A???????????????? Stan?????????? ? ? IL??????????????????? Yaesu???????????? 757??????????????? ???????????????????????????????????????????????? ? K6WF??????????????? Frank???????????? CA????????????????? K3S???????????? 11672??????????? ???????????????????????????????????????????????? ? K9YEQ????????????? Bill????????????????? WI ??????????????? ? K3S???????????? 11140??????????? ???????????????????????????????????????????????? ? N0MPM???????????? Mike?????????? ? ?? IA????????????????? ? K3S???????????? 10514??????????? ???????????????????????????????????????????????? ? ?K5APL???????????????? Wes???????????????? AR??????? ? ? ? ? ? ?? K2?????????????????? 3505?????? ??????????????? From lists at w2irt.net Wed Jun 10 19:32:43 2020 From: lists at w2irt.net (Peter Dougherty) Date: Wed, 10 Jun 2020 19:32:43 -0400 Subject: [Elecraft] A couple of KPA1500 remote operating questions Message-ID: <008601d63f7f$70d25f80$52771e80$@w2irt.net> Hi all, Within the next week or two I am hoping to relocate my KPA-1500 to a basement crawlspace, but before calling in the electrician and getting ready to move it, I have a couple of questions. 1. The area it will be going into is dusty. To the point that when I'm in there to check on my cables or retrieve an equipment box that's stored down there I have to wear a face mask or I'll be coughing for hours . I suspect it's particulate dropping down from the insulation in the ceiling. I plan to put a shelf about 10 inches over top of the amp but I'm wondering if this might be a problem. If so, how often should I get down there with a compressor to blow the crud out of everything? Or maybe put a piece of fine air filter material over the fan inlet? 2. The crawlspace is not heated and probably gets into the 40s or even 30s during the winter. Would this be a risk? 3. I'm using the amp with a K3s. At the moment I have a Y-box from the accessory port, and a cable from the Y-box to the amp. Since this won't be on the same floor as the radio, how can I get this working with the radio? If I site the amp immediately below where it is now I could probably run a 10' DB15 extension cable down from the Y-box to the amp, but I'm pretty sure that will violate all kinds of fire regs. Not sure how I can do this. --------------------------------------------- 73 and Good DX Peter, W2IRT President, North Jersey DX Association DXCC Card Checker Letter O Manager, ARRL Incoming 2nd District QSL bureau From k3ndm at comcast.net Wed Jun 10 19:55:32 2020 From: k3ndm at comcast.net (Barry) Date: Wed, 10 Jun 2020 23:55:32 +0000 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> Message-ID: Don, I worked as a design engineer and then transitioned to system engineering/project management. In those latter days, I would receive a requirement set from which I needed to make sense. I also had budgetary issues that were built in, more requirements than money. And, there might have been other conflicts. So, I know what e had to do, maximize the number of requirements satisfied with in the set. Yes. We engineers were pretty well trained, but when making decisions on what had to go or be included it wasn't always a 2+2 = 4 which is precise. Mathematicians are precise and there may be only answer to the equation, but that wasn't the world I was living in; I could have many different solutions based on the requirements. This is the point I was trying to make. 73, Barry K3NDM ------ Original Message ------ From: "Don Wilhelm" To: elecraft at mailman.qth.net Sent: 6/10/2020 4:20:44 PM Subject: Re: [Elecraft] K3 on motorboat. >Barry, > >Well, when I was with IBM, my title was Engineer/Scientist, so I got credit for both. > >Engineers have the education and training to do research as well as making those judgements during design that sometimes result in compromises. > >73, >Don W3FPR > >On 6/10/2020 1:15 PM, Barry wrote: >>I strongly disagree. How many compromises were made to pull this off. You may use the laws of physics and math to design something, but unlike physics or math, engineering is not as precise. that means there are judgment calls made by design engineers. Physicists make judgemet call also, but only in data interpretation and not design. Sorry you couldn't be more wrong. >> >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to k3ndm at comcast.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From barrylazar2 at gmail.com Wed Jun 10 19:59:47 2020 From: barrylazar2 at gmail.com (Barry) Date: Wed, 10 Jun 2020 23:59:47 +0000 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <3AEDB5BE-8D17-4B6F-8405-94B249F9577D@mac.com> References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> <3AEDB5BE-8D17-4B6F-8405-94B249F9577D@mac.com> Message-ID: Phil, I think I understand your point. I think I can live with it. However, I never studied philosophy. 73, Barry K3NDM ------ Original Message ------ From: "Phil Hystad via Elecraft" To: "Barry" Cc: elecraft at mailman.qth.net Sent: 6/10/2020 1:50:48 PM Subject: Re: [Elecraft] K3 on motorboat. >The problem with this argument is the dichotomy of choice. The contrast between art and science was introduced into philosophical discussion several hundred years ago. > >Today, the discussion might better be divided into three categories: Art, Engineering, Science with the recognition that many things real or imagined may include parts from all. > > > >> On Jun 10, 2020, at 10:15 AM, Barry wrote: >> >> I strongly disagree. How many compromises were made to pull this off. You may use the laws of physics and math to design something, but unlike physics or math, engineering is not as precise. that means there are judgment calls made by design engineers. Physicists make judgemet call also, but only in data interpretation and not design. Sorry you couldn't be more wrong. >> >> 73, >> Barry >> K3NDM >> >> ------ Original Message ------ >> From: "Jim Brown" >> To: elecraft at mailman.qth.net >> Sent: 6/10/2020 1:53:14 AM >> Subject: Re: [Elecraft] K3 on motorboat. >> >>> On 6/9/2020 3:54 PM, Barry wrote: >>>> EE is an art and not science >>> >>> That is NOT even slightly true. ART did not put us on the moon or build the Mars rovers. Engineering is the thoughtful application of scientific principles and knowledge to solve practical problems. Without science as a base, it's little more than the infinite number of monkeys and typewriters producing Shakespeare. Nearly all practical designs involve some compromises. Great engineering is selecting (sometimes innovating) those solutions which work well for the particular problem at hand. >>> >>> 73, Jim K9YC >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to barrylazar2 at gmail.com >> >> >> -- >> This email has been checked for viruses by Avast antivirus software. >>https://www.avast.com/antivirus >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to phystad at mac.com > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to k3ndm at comcast.net From n6tv at arrl.net Wed Jun 10 21:10:10 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Wed, 10 Jun 2020 18:10:10 -0700 Subject: [Elecraft] A couple of KPA1500 remote operating questions In-Reply-To: <008601d63f7f$70d25f80$52771e80$@w2irt.net> References: <008601d63f7f$70d25f80$52771e80$@w2irt.net> Message-ID: On Wed, Jun 10, 2020 at 4:33 PM Peter Dougherty wrote: > 1. The area it will be going into is dusty. Dust is not good for amplifiers. They must move lots of air through the amplifier. Do you really have to put it there? Is it because you can't stand the fan noise? Or the heat? > I suspect it's particulate dropping down from the insulation in the > ceiling. Any way to fix that? Maybe a HEPA room filter? > I plan to put a shelf about 10 inches over top of the amp but I'm > wondering if > this might be a problem. Well, it won't keep the dust out. Cool air is blown *into* the amplifier from the rear fans, and out the top (and also through gaps in the front panel if the fan speed gets high enough). A shelf over the amp. could force the hot exhaust air to circulate back down close to the intake. Not good. If so, how often should I get down there with a compressor to blow the crud > out of everything? Or maybe put a piece of fine > air filter material over the fan inlet? > A filter will probably reduce air flow, and put more stress on the fans. Not good. 2. The crawlspace is not heated and probably gets into the 40s or even > 30s during the winter. Would this be a risk? > Cold is good. Amps like to be cold (KPA1500 has more gain when cold than when not). But if moisture or condensation is a problem down there, not good. > 3. I'm using the amp with a K3s. At the moment I have a Y-box from the > accessory port, and a cable from the Y-box to the amp. Since this won't be > on the same floor as the radio, how can I get this working with the radio? > A long M/F DE-15 cable should work. I don't know what the length limit is. 10 to 15 feet should be OK if you have 2.5' from the K3 ACC to the Y-BOX. But use a well shielded cable. I recommend this one for extra long runs: https://www.cablesondemand.com/category/HD15/product/CS-DSPMHD15MF/URvars/Items/Library/InfoManage/CS-DSPMHD15MF.htm > If I site the amp immediately below where it is now I could probably run a > 10' DB15 extension cable down from the Y-box to the amp, but I'm pretty > sure > that will violate all kinds of fire regs. Not sure how I can do this. > Fire regs? Can't comment on that, but there is no more than 13V on any pin, and very little current, so it's hard to imagine how that cable could cause a fire. But once the amp. is down there, how will you monitor it? Are you planning to run a long USB or Ethernet cable down there as well? A long USB cable will probably need ferrites. A long Ethernet cable should generate RFI if you use the unshielded type. Or are you going to keep a PC in the crawlspace, connected by WiFi, and use KPA1500 Remote software? 73, Bob, N6TV From va3mw at portcredit.net Wed Jun 10 21:29:41 2020 From: va3mw at portcredit.net (Michael Walker) Date: Wed, 10 Jun 2020 21:29:41 -0400 Subject: [Elecraft] A couple of KPA1500 remote operating questions In-Reply-To: <008601d63f7f$70d25f80$52771e80$@w2irt.net> References: <008601d63f7f$70d25f80$52771e80$@w2irt.net> Message-ID: My 2 cents I ran a KPA500 in a boat house for 6 or 7 years. It wasn't heated, covered or filtered. It saw temperatures from -25C to +35C and humidities from 15% to 99% and it worked perfectly for those years. In fact, it still works today but I just replaced it with a higher power amp. This was in Ontario NE of Toronto. From October to April I never saw it and controlled it remotely by the PC that was sitting beside it. It wasn't bothered by the high summer humidity or the cold winter air. Every few years I blew some dust out of it. I ran a bunch of CW, SSB and RTTY contests on it, some in January and it took a while for the PA temp to reach 0C. I figured that if all the electronics in my car would work at -35C then the KPA500 would as well. Short story, I plugged it in, turned it on and used it. That may not what you wish to do but it worked perfectly for me. And, it still works perfectly today. Just in a different purpose. mike va3mw On Wed, Jun 10, 2020 at 7:33 PM Peter Dougherty wrote: > Hi all, > Within the next week or two I am hoping to relocate my KPA-1500 to a > basement crawlspace, but before calling in the electrician and getting > ready > to move it, I have a couple of questions. > > > > 1. The area it will be going into is dusty. To the point that when I'm > in there to check on my cables or retrieve an equipment box that's stored > down there I have to wear a face mask or I'll be coughing for hours . I > suspect it's particulate dropping down from the insulation in the ceiling. > I > plan to put a shelf about 10 inches over top of the amp but I'm wondering > if > this might be a problem. If so, how often should I get down there with a > compressor to blow the crud out of everything? Or maybe put a piece of fine > air filter material over the fan inlet? > 2. The crawlspace is not heated and probably gets into the 40s or even > 30s during the winter. Would this be a risk? > 3. I'm using the amp with a K3s. At the moment I have a Y-box from the > accessory port, and a cable from the Y-box to the amp. Since this won't be > on the same floor as the radio, how can I get this working with the radio? > If I site the amp immediately below where it is now I could probably run a > 10' DB15 extension cable down from the Y-box to the amp, but I'm pretty > sure > that will violate all kinds of fire regs. Not sure how I can do this. > > > > > --------------------------------------------- > 73 and Good DX > Peter, W2IRT > > > > President, North Jersey DX Association > > DXCC Card Checker > Letter O Manager, ARRL Incoming 2nd District QSL bureau > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to va3mw at portcredit.net > From donwilh at embarqmail.com Wed Jun 10 21:46:03 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Wed, 10 Jun 2020 21:46:03 -0400 Subject: [Elecraft] K3 on motorboat. In-Reply-To: References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> Message-ID: <675ea6f1-66bf-ade7-ce82-94196c4e7838@embarqmail.com> Barry, Sometimes we have to put on the Scientists hat, but when the rubber meets the road and we have to come up with a product, we have to put on the design engineers hat and say that how much compromise is required to meet 1) customer demands, 2) budget constraints, 3) speed to first customer shipment, 4) adherence to the initial specifications that have been published. If you can meet 2 of the 4 above, you have done OK, 3 is better, but takes more effort. I worked both as a design engineer and as a Product Assurance Test Team Leader whose efforts were to test the product to conform to the specifications or fix it - an alternative was to change the specifications, which usually did not sit well with me, but was reality. 73, W3FPR On 6/10/2020 7:55 PM, Barry wrote: > Don, > ??? I worked as a design engineer and then transitioned to system > engineering/project management. In those latter days, I would receive > a requirement set from which I needed to make sense. I also had > budgetary issues that were built in, more requirements than money.? > And, there might have been other conflicts. So, I know what e had to > do, maximize the number of requirements satisfied with in the set. > > ??? Yes. We engineers were pretty well trained, but when making > decisions on what had to go or be included it wasn't always a 2+2 = 4 > which is precise. Mathematicians are precise and there may be only > answer to the equation, but that wasn't the world I was living in; I > could have many different solutions based on the requirements. This is > the point I was trying to make. > From lists at w2irt.net Wed Jun 10 22:07:10 2020 From: lists at w2irt.net (Peter Dougherty) Date: Wed, 10 Jun 2020 22:07:10 -0400 Subject: [Elecraft] A couple of KPA1500 remote operating questions In-Reply-To: References: <008601d63f7f$70d25f80$52771e80$@w2irt.net> Message-ID: <00c801d63f95$049021c0$0db06540$@w2irt.net> The concern is 100% noise. Heat I don?t mind, and it helps in the winter. I?ll see about a HEPA room filter. The area is a concrete crawl space below my shack, about 3 feet high and 25 feet long, with a sheltered window at one end and access to the main part of the basement at the other. I would plan to put the amp about 8 feet in from the basement entrance, and against an exterior wall. I don?t know what material is dropping over everything, but it?s noticeable. Maybe concrete dust? Something from the insulation in the ceiling?? I figured if I went down every week or two with a compressor and just blasted air into the back to blow anything out that would help. I see you point about air filters. I have a Cat-6 line in there now to an old PC, the drop to my station, and another one to my weather station?s RPI. With good shielded coax running in the direction opposite direction to the Cat-6 and a few ferrites I think I?ll be OK in that area. It?s just the dust contamination I?m concerned about. - pjd From: Bob Wilson, N6TV Sent: Wednesday, June 10, 2020 9:10 PM To: Peter Dougherty ; Elecraft Reflector Subject: Re: [Elecraft] A couple of KPA1500 remote operating questions On Wed, Jun 10, 2020 at 4:33 PM Peter Dougherty > wrote: 1. The area it will be going into is dusty. Dust is not good for amplifiers. They must move lots of air through the amplifier. Do you really have to put it there? Is it because you can't stand the fan noise? Or the heat? I suspect it's particulate dropping down from the insulation in the ceiling. Any way to fix that? Maybe a HEPA room filter? I plan to put a shelf about 10 inches over top of the amp but I'm wondering if this might be a problem. Well, it won't keep the dust out. Cool air is blown into the amplifier from the rear fans, and out the top (and also through gaps in the front panel if the fan speed gets high enough). A shelf over the amp. could force the hot exhaust air to circulate back down close to the intake. Not good. If so, how often should I get down there with a compressor to blow the crud out of everything? Or maybe put a piece of fine air filter material over the fan inlet? A filter will probably reduce air flow, and put more stress on the fans. Not good. 2. The crawlspace is not heated and probably gets into the 40s or even 30s during the winter. Would this be a risk? Cold is good. Amps like to be cold (KPA1500 has more gain when cold than when not). But if moisture or condensation is a problem down there, not good. 3. I'm using the amp with a K3s. At the moment I have a Y-box from the accessory port, and a cable from the Y-box to the amp. Since this won't be on the same floor as the radio, how can I get this working with the radio? A long M/F DE-15 cable should work. I don't know what the length limit is. 10 to 15 feet should be OK if you have 2.5' from the K3 ACC to the Y-BOX. But use a well shielded cable. I recommend this one for extra long runs: https://www.cablesondemand.com/category/HD15/product/CS-DSPMHD15MF/URvars/Items/Library/InfoManage/CS-DSPMHD15MF.htm If I site the amp immediately below where it is now I could probably run a 10' DB15 extension cable down from the Y-box to the amp, but I'm pretty sure that will violate all kinds of fire regs. Not sure how I can do this. Fire regs? Can't comment on that, but there is no more than 13V on any pin, and very little current, so it's hard to imagine how that cable could cause a fire. But once the amp. is down there, how will you monitor it? Are you planning to run a long USB or Ethernet cable down there as well? A long USB cable will probably need ferrites. A long Ethernet cable should generate RFI if you use the unshielded type. Or are you going to keep a PC in the crawlspace, connected by WiFi, and use KPA1500 Remote software? 73, Bob, N6TV From k3ndm at comcast.net Wed Jun 10 22:13:27 2020 From: k3ndm at comcast.net (Barry) Date: Thu, 11 Jun 2020 02:13:27 +0000 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <675ea6f1-66bf-ade7-ce82-94196c4e7838@embarqmail.com> References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> <675ea6f1-66bf-ade7-ce82-94196c4e7838@embarqmail.com> Message-ID: Don, Yep. You do understand what I was trying to say. What a lot of folks don't understand is that the compromises I make may or may not be those that you would make, and if there were more engineers involved, there could be that many reflections of what needs to be done. All I can say is life sometimes was challenging. Ham radio reflects a lot of the things you and I faced. For instance, what antenna should be used. All the answers may be technically correct, but try and fit a 80 meter antenna into a 20 meter antenna. I know there will be a host of ideas on what should go in. Each will be a compromise. Look to this reflector to see what I mean. Each ham has his own idea of what needs to be done; it gets down to how you interpret the requirement set. 73, Barry K3NDM ------ Original Message ------ From: "Don Wilhelm" To: "Barry" ; elecraft at mailman.qth.net Sent: 6/10/2020 9:46:03 PM Subject: Re: [Elecraft] K3 on motorboat. >Barry, > >Sometimes we have to put on the Scientists hat, but when the rubber meets the road and we have to come up with a product, we have to put on the design engineers hat and say that how much compromise is required to meet 1) customer demands, 2) budget constraints, 3) speed to first customer shipment, 4) adherence to the initial specifications that have been published. >If you can meet 2 of the 4 above, you have done OK, 3 is better, but takes more effort. > >I worked both as a design engineer and as a Product Assurance Test Team Leader whose efforts were to test the product to conform to the specifications or fix it - an alternative was to change the specifications, which usually did not sit well with me, but was reality. > >73, >W3FPR > >On 6/10/2020 7:55 PM, Barry wrote: >>Don, >> I worked as a design engineer and then transitioned to system engineering/project management. In those latter days, I would receive a requirement set from which I needed to make sense. I also had budgetary issues that were built in, more requirements than money. And, there might have been other conflicts. So, I know what e had to do, maximize the number of requirements satisfied with in the set. >> >> Yes. We engineers were pretty well trained, but when making decisions on what had to go or be included it wasn't always a 2+2 = 4 which is precise. Mathematicians are precise and there may be only answer to the equation, but that wasn't the world I was living in; I could have many different solutions based on the requirements. This is the point I was trying to make. >> > -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From n6tv at arrl.net Wed Jun 10 23:13:16 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Wed, 10 Jun 2020 20:13:16 -0700 Subject: [Elecraft] KPA1500 Wake On Lan not working In-Reply-To: <003c01d63f56$580de010$0829a030$@w2irt.net> References: <003c01d63f56$580de010$0829a030$@w2irt.net> Message-ID: If needed, the KPA1500 can be remotely powered on and off by momentarily grounding Pin 8 of the KPA1500 AUX port, however this will not work using an unmodified KPAK3AUX cable, which has no connection to Pin 8. However, this "remote power on" feature is supported by the Y-BOX v2.x , when connected to the amp with a straight 15-pin cable (not the Elecraft KPA3AUX cable), as documented here: https://www.kkn.net/~n6tv/Y-BOX/Features.html#Remote However, I believe you have the original Y-BOX, v1.x, which doesn't have this feature. So in your case, follow the instructions for modifying the KPAK3AUX cable to support remote power via a K3 macro, as documented in the section titled *Using a Remote Site KPA500 from the Control Site *in the *K3 Remote Owner's Manual *. However, the macro in the manual has an major error: it omits the last semicolon. The correct macro is documented at the link above. Electrically, you just have to connect KPAK3AUX cable Pin 11 (DIGOUT1) to Pin 8 in the female end of the cable (the end that plugs into the amp. AUX connector). This assumes you're not using the DIGOUT1 line to activate an external pre-amp like the Elecraft PR6-10. As a final note, the KPA1500 won't work properly if you connect all 15 pins between the K3 ACC and the KPA1500 AUX (same applies to KPA500). And of course, *never* connect a VGA monitor cable to any Elecraft connector (way too many lines shorted to ground). So your best bet would be to use a 15-pin M/F extension between the Y-BOX and the KPAK3AUX cable (after modification). Connect the AUX cable to the amp, and the extension to the Y-BOX. Then program the K3 macro as documented in the link above. 73, Bob, N6TV https://bit.ly/Y-BOX On Wed, Jun 10, 2020 at 11:39 AM Peter Dougherty wrote: > Wake On LAN is not functioning on my KPA-1500 using the remote software. I > have the Wake On Lan and DHCP boxes checked in the Network tab in the > configuration settings within the KPA1500 Utility program, and the LAN > settings (including the IP address) are correct. > > > The only condition in which the remote software (v1.27) can find the > KPA1500 > is when the amp is manually powered on, after which it operates fine. Once > I > power down the amp there is no condition in which I can reattach the > software remotely-I must power the amp on from the front panel button. In > addition to this, just pressing the "connect" button won't do it either. I > have to press the TEST button, wait until it finds the amp, then press > CONNECT and it connects normally. > > > > At the moment this isn't a deal breaker, but I intend to remote the amp > next > week to a relatively inaccessible space in the basement so I'd like to get > this solved as soon as possible. > > > > As a side issue, the DHCP IP address had changed at some point, and the > remote software did NOT pick up the change. I had to hunt in my router for > the MAC address and enter the new IPV4 address manually into the remote > software. > > > --------------------------------------------- > Please and thanks. > > Peter, W2IRT > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6tv at arrl.net > From aj4tf at arrl.net Thu Jun 11 00:04:05 2020 From: aj4tf at arrl.net (aj4tf) Date: Wed, 10 Jun 2020 21:04:05 -0700 (MST) Subject: [Elecraft] K3 on motorboat. In-Reply-To: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> References: <20200610071818.Horde.yh22Q6oTDlNKvkhEi7hOa22@www11.qth.com> Message-ID: <1591848245091-0.post@n2.nabble.com> K3WIV is the owner. -- Sent from: http://elecraft.365791.n2.nabble.com/ From n6tv at arrl.net Thu Jun 11 00:59:04 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Wed, 10 Jun 2020 21:59:04 -0700 Subject: [Elecraft] KPA1500 Wake On Lan not working In-Reply-To: <003c01d63f56$580de010$0829a030$@w2irt.net> References: <003c01d63f56$580de010$0829a030$@w2irt.net> Message-ID: On Wed, Jun 10, 2020 at 11:39 AM Peter Dougherty wrote: > Wake On LAN is not functioning on my KPA-1500 using the remote software. I > have the Wake On Lan and DHCP boxes checked in the Network tab in the > configuration settings within the KPA1500 Utility program, and the LAN > settings (including the IP address) are correct. Assuming you remembered to click the "Apply" button in the KPA1500 Utility after checking the Wake on LAN box, the KPA1500 Remote software still may not connect to the amp *if the KPA1500 Utility is running at the same time*, and still connected to the KPA1500 USB port (even if the KPA1500 is OFF). So, exit the KPA1500 Utility first, or click the "Close Port" button. Turn off the KPA1500, then launch the KPA1500 Remote software and the Wake On LAN feature should work OK, using either the "Local Connect" or "Host Remote" tabs, and the *Ethernet* secondary-tab. Either the TEST button or the CONNECT button should wake up the amplifier if it is powered OFF. Once I power down the amp there is no condition in which I can reattach the > software remotely-I must power the amp on from the front panel button. I could only replicate that when the KPA1500 Utility was running at the same time as the KPA1500 Remote software. And it didn't always occur. In addition to this, just pressing the "connect" button won't do it either. > I have to press the TEST button, wait until it finds the amp, then press > CONNECT and it connects normally. > I cannot replicate that. Either button wakes up the amp once the IP address and MAC address are stored. > As a side issue, the DHCP IP address had changed at some point, and the > remote software did NOT pick up the change. I don't think the KPA1500 software can automatically find the amplifier's new IP address by poking around your entire LAN, if that's what you're thinking. I had to hunt in my router for the MAC address and enter the new IPV4 > address manually into the remote software. > The KPA1500's new IPV4 address is displayed on the amplifier's LCD display (MENU:NET IP ADDRESS), so there's no need to look at your Router. Of course MENU:TECH MODE has to be ENABLED first, to see this entry. The KPA1500 Utility can also be used to see the same menu, using the OPERATE tab. Just remember to close the KPA1500 Utility before trying to use the KPA1500 Remote software to wake up the amplifier. 73, Bob, N6TV From n6tv at arrl.net Thu Jun 11 03:50:06 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Thu, 11 Jun 2020 00:50:06 -0700 Subject: [Elecraft] KPA1500 Ethernet port RFI, cause and cure Message-ID: *Summary*: To avoid 20m narrow band RFI generated by the KPA1500 and other Ethernet devices, use shielded Ethernet cables, CAT5 STP or CAT6 STP, instead of CAT5e UTP or CAT6 UTP. *Details*: The KPA1500 and some SDRs provide a 100 Mbps Ethernet port, which may be tempting to use instead of USB in some situations. However, if you connect an "ordinary" CAT5e UTP Ethernet cable (unshielded twisted pair) to the amplifier, and your antenna is anywhere near the shack, you will probably hear steady carriers around 14.029.5 MHz (plus carriers from any other Ethernet devices in your house, or your neighbor's house, that are connecting at 100 Mbps). I have not observed any HF carriers from devices connecting at 1 Gbps, but the KPA1500 does not support 1 Gbps. This is illustrated by the following P3SVGA screen capture (the unshielded Ethernet cable was short, only 1m long): https://www.kkn.net/~n6tv/KPA1500_RFI_from_3_ft_UTP_Ethernet_Cable_N6TV.png My 20m antenna was cranked down, located 9m directly above the amplifier. The (weak) Ethernet carriers are visible even when the amp. is OFF. They disappear completely when either end of the Ethernet cable is disconnected. I replaced the 1m CAT5e UTP cable with a slightly longer 1.5m CAT5 STP cable (*shielded* twisted pair), and the KPA1500 carriers were not detectable.. *How to tell if an Ethernet cable is UTP or STP*: Often it is printed on the cable, but it's easier to simply look at the RJ-45 connectors. If you see clear plastic on three sides instead of shiny silver metal on three sides, it is unshielded (UTP) not shielded (STP). Most Ethernet cables are UTP, because STP costs more. *How to tell if a device is connecting at 100 Mbps or 1 Gbps*: Implementations vary, but most modern Ethernet switches and Routers have one or two LEDs on each jack that indicate the current link speed. My Netgear GS105 switch is clearly labeled (both LEDs green = 1000 Mbps, one LED green = 100 Mbps). 73, Bob, N6TV From n6tv at arrl.net Thu Jun 11 04:09:00 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Thu, 11 Jun 2020 01:09:00 -0700 Subject: [Elecraft] KPA1500 Ethernet port RFI, cause and cure In-Reply-To: References: Message-ID: I forgot to mention, if it's not practical to replace a long unshielded Ethernet cable, you can easily install these effective Ethernet RFI filters: https://www.dxengineering.com/parts/dxe-iso-plus-2 Long ago I attempted to use turns of Ethernet cable wrapped around Mix #31 split ferrite beads on both ends of a long 100 Mbps unshielded Ethernet run, but it didn't help much. These DXE filters worked much better. 73, Bob, N6TV On Thu, Jun 11, 2020 at 12:50 AM Bob Wilson, N6TV wrote: > *Summary*: > > To avoid 20m narrow band RFI generated by the KPA1500 and other Ethernet > devices, use shielded Ethernet cables, CAT5 STP or CAT6 STP, instead of > CAT5e UTP or CAT6 UTP. > > *Details*: > > The KPA1500 and some SDRs provide a 100 Mbps Ethernet port, which may be > tempting to use instead of USB in some situations. However, if you > connect an "ordinary" CAT5e UTP Ethernet cable (unshielded twisted pair) > to the amplifier, and your antenna is anywhere near the shack, you will > probably hear steady carriers around 14.029.5 MHz (plus carriers from any > other Ethernet devices in your house, or your neighbor's house, that are > connecting at 100 Mbps). I have not observed any HF carriers from > devices connecting at 1 Gbps, but the KPA1500 does not support 1 Gbps. > > This is illustrated by the following P3SVGA screen capture (the unshielded > Ethernet cable was short, only 1m long): > > https://www.kkn.net/~n6tv/KPA1500_RFI_from_3_ft_UTP_Ethernet_Cable_N6TV. > png > > My 20m antenna was cranked down, located 9m directly above the amplifier. > > The (weak) Ethernet carriers are visible even when the amp. is OFF. They > disappear completely when either end of the Ethernet cable is disconnected. > > I replaced the 1m CAT5e UTP cable with a slightly longer 1.5m CAT5 STP > cable (*shielded* twisted pair), and the KPA1500 carriers were not > detectable.. > > *How to tell if an Ethernet cable is UTP or STP*: > > Often it is printed on the cable, but it's easier to simply look at the RJ-45 > connectors. If you see clear plastic on three sides instead of shiny > silver metal on three sides, it is unshielded (UTP) not shielded (STP). > Most Ethernet cables are UTP, because STP costs more. > > *How to tell if a device is connecting at 100 Mbps or 1 Gbps*: > > Implementations vary, but most modern Ethernet switches and Routers have > one or two LEDs on each jack that indicate the current link speed. My > Netgear GS105 switch is clearly labeled (both LEDs green = 1000 Mbps, one > LED green = 100 Mbps). > > 73, > Bob, N6TV > From rwnewbould at comcast.net Thu Jun 11 09:15:56 2020 From: rwnewbould at comcast.net (Rich) Date: Thu, 11 Jun 2020 09:15:56 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <11cd5bbe-69d7-eb46-4748-b2d3279a193d@embarqmail.com> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <5df853a6-8d9e-6045-e414-e8be4ba20a01@embarqmail.com> <11cd5bbe-69d7-eb46-4748-b2d3279a193d@embarqmail.com> Message-ID: <1896cac6-a589-7aa9-145e-a070496d7e4c@comcast.net> Interesting stuff here.?? Since the original post was regarding the Rear Mic jack.?? Would this method also be recommended for the Front Panel Mic Jack also? My guess is yes Rich K3RWN On 6/9/2020 22:50 PM, Don Wilhelm wrote: > Joe, > > I did not say anything to the contrary.? The 'dongle' that I was > referring to is the connection to pin 1 which should be connected to > the outside of the K3/K3S enclosure. > > 73, > Don W3FPR > > On 6/9/2020 9:13 PM, Joe Subich, W4TV wrote: >> >> On 2020-06-09 8:14 PM, Don Wilhelm wrote: >>> So --- make an adapter so that pins 2 and 3 are connected to the tip >>> and ring of the mic jack, >> No, no, no!? The ring of the K3/K3S rear panel mic jack *IS FLOATING*. >> Pins 2 and 3 of the XLR *MUST BE* connected to tip and *SLEEVE*. >> >> 73, >> >> ??? ... Joe, W4TV >> >> >> On 2020-06-09 8:14 PM, Don Wilhelm wrote: >>> So --- make an adapter so that pins 2 and 3 are connected to the tip >>> and ring of the mic jack, then add a one wire 'dongle' exiting from >>> the XLR plug that is connected to XLR pin 1.? Connect that wire to a >>> screw on the chassis of the K3/K3S/KX2/KX3. >>> >>> Noise, hum and buzz are? then conducted from the shield onto the >>> "outside" of the radio enclosure where it should be - avoiding the >>> "pin 1" problem that K9YC often refers to. >>> >>> For those not familiar with the "pin 1" problem, it is caused by the >>> jacks in the transceiver (or other gear) being connected to the >>> circuit board ground plane where it can couple into sensitive >>> circuits and cause coupling problems. Proper bonding between >>> enclosures following the path of audio or coax lines can minimize >>> that problem by keeping some of the noise, hum and buzz mostly on >>> the outside of the enclosure rather than injecting it into the >>> circuits on the board ground plane. >>> We did not have this problem when we mounted the jacks on the >>> enclosure rather than mounting them on the boards, usually isolated >>> from the outside of the enclosure. >>> >>> 73, >>> Don W3FPR >>> >>> On 6/9/2020 7:47 PM, Joe Subich, W4TV wrote: >>>> >>>> Correcting *ALL* the typos .... >>>> >>>> >>>>> So which is correct? >>>> >>>> They are electrically equivalent. >>>> >>>> Pin 2 of the XLR connection is Mic+ >>>> Pin 3 of the XLR connection is Mic- >>>> Pin 1 of the XLR connection is the cable shield (ground). >>>> >>>> Mic audio is present between pins 2 and 3. >>>> >>>> Pin 1 is nothing more than a shield and should be independently >>>> connected to the *chassis at the jack*. >>>> >>>> Good quality XLR cables use a *TWISTED PAIR* for pins 2 and 3. >>>> That twisted pair is shelf shielding - particularly good for >>>> rejecting hum. Connecting a shield in parallel with the wire >>>> for pin 3 "unbalances" the twisted pair and makes it much >>>> more susceptible to hum and RFI - particularly when the shell >>>> of the 3.5mm plug/jack is not tied to the chassis/case of the >>>> transceiver. >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to donwilh at embarqmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rwnewbould at comcast.net From rmcgraw at blomand.net Thu Jun 11 10:12:45 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 11 Jun 2020 09:12:45 -0500 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <1896cac6-a589-7aa9-145e-a070496d7e4c@comcast.net> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <5df853a6-8d9e-6045-e414-e8be4ba20a01@embarqmail.com> <11cd5bbe-69d7-eb46-4748-b2d3279a193d@embarqmail.com> <1896cac6-a589-7aa9-145e-a070496d7e4c@comcast.net> Message-ID: <3e99b40e-f431-a01e-e669-9049b9249351@blomand.net> I use a Shure SM-58 mike with my K3S. It is a balanced dynamic mike. It has an XLR at the mike and the 8 pin Foster connector at the radio.? I use good quality, 2 conductor, shielded mike cable. It is wired as follows: XLR pin #1 to Foster pin #8? {shield} XLR pin #2 to Foster pin #1? {black} XLR pin #3 to Foster pin#7 {white} Operating 160M - 6M at 500 watts or less, I find no issues with the wiring convention as it works very satisfactory. 73 Bob, K4TAX On 6/11/2020 8:15 AM, Rich wrote: > Interesting stuff here.?? Since the original post was regarding the > Rear Mic jack.?? Would this method also be recommended for the Front > Panel Mic Jack also? > > My guess is yes > > Rich > > K3RWN > > On 6/9/2020 22:50 PM, Don Wilhelm wrote: >> Joe, >> >> I did not say anything to the contrary.? The 'dongle' that I was >> referring to is the connection to pin 1 which should be connected to >> the outside of the K3/K3S enclosure. >> >> 73, >> Don W3FPR >> >> On 6/9/2020 9:13 PM, Joe Subich, W4TV wrote: >>> >>> On 2020-06-09 8:14 PM, Don Wilhelm wrote: >>>> So --- make an adapter so that pins 2 and 3 are connected to the tip >>>> and ring of the mic jack, >>> No, no, no!? The ring of the K3/K3S rear panel mic jack *IS FLOATING*. >>> Pins 2 and 3 of the XLR *MUST BE* connected to tip and *SLEEVE*. >>> >>> 73, >>> >>> ??? ... Joe, W4TV >>> >>> >>> On 2020-06-09 8:14 PM, Don Wilhelm wrote: >>>> So --- make an adapter so that pins 2 and 3 are connected to the >>>> tip and ring of the mic jack, then add a one wire 'dongle' exiting >>>> from the XLR plug that is connected to XLR pin 1.? Connect that >>>> wire to a screw on the chassis of the K3/K3S/KX2/KX3. >>>> >>>> Noise, hum and buzz are? then conducted from the shield onto the >>>> "outside" of the radio enclosure where it should be - avoiding the >>>> "pin 1" problem that K9YC often refers to. >>>> >>>> For those not familiar with the "pin 1" problem, it is caused by >>>> the jacks in the transceiver (or other gear) being connected to the >>>> circuit board ground plane where it can couple into sensitive >>>> circuits and cause coupling problems. Proper bonding between >>>> enclosures following the path of audio or coax lines can minimize >>>> that problem by keeping some of the noise, hum and buzz mostly on >>>> the outside of the enclosure rather than injecting it into the >>>> circuits on the board ground plane. >>>> We did not have this problem when we mounted the jacks on the >>>> enclosure rather than mounting them on the boards, usually isolated >>>> from the outside of the enclosure. >>>> >>>> 73, >>>> Don W3FPR >>>> >>>> On 6/9/2020 7:47 PM, Joe Subich, W4TV wrote: >>>>> >>>>> Correcting *ALL* the typos .... >>>>> >>>>> >>>>>> So which is correct? >>>>> >>>>> They are electrically equivalent. >>>>> >>>>> Pin 2 of the XLR connection is Mic+ >>>>> Pin 3 of the XLR connection is Mic- >>>>> Pin 1 of the XLR connection is the cable shield (ground). >>>>> >>>>> Mic audio is present between pins 2 and 3. >>>>> >>>>> Pin 1 is nothing more than a shield and should be independently >>>>> connected to the *chassis at the jack*. >>>>> >>>>> Good quality XLR cables use a *TWISTED PAIR* for pins 2 and 3. >>>>> That twisted pair is shelf shielding - particularly good for >>>>> rejecting hum. Connecting a shield in parallel with the wire >>>>> for pin 3 "unbalances" the twisted pair and makes it much >>>>> more susceptible to hum and RFI - particularly when the shell >>>>> of the 3.5mm plug/jack is not tied to the chassis/case of the >>>>> transceiver. >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to donwilh at embarqmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rwnewbould at comcast.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From mike at marusin.com Thu Jun 11 11:10:35 2020 From: mike at marusin.com (Mike Marusin) Date: Thu, 11 Jun 2020 10:10:35 -0500 Subject: [Elecraft] FS: Elecraft KXPA100 Amp + KXAT100 ATU (NEVER USED!) Message-ID: Hey everyone - I bought a KXPA100 Amplifier Kit with the KXAT100 internal ATU a few years ago and have literally never used it. I have all the original packaging / manuals and many of the bags with cables, etc have never even been opened. It's been sitting in my closet wrapped up and I feel it's time for someone to benefit from it and actually use it. Selling for $1100 shipped within the US. 73, Mike Marusin KC9YFH From alorona at sbcglobal.net Thu Jun 11 12:59:49 2020 From: alorona at sbcglobal.net (Al Lorona) Date: Thu, 11 Jun 2020 16:59:49 +0000 (UTC) Subject: [Elecraft] K3 QSK Timing In-Reply-To: <86415CD3-28EA-4938-8A11-B5361A19A7A9@socket.net> References: <86415CD3-28EA-4938-8A11-B5361A19A7A9@socket.net> Message-ID: <1051437436.2991309.1591894789228@mail.yahoo.com> I have always felt as K9ZTV does. I don't mean to speak heresy here, and I would never deny anybody's right to use full QSK, such as when chasing DX. However, I have never felt the need to hear between dits. Between characters or words seems more than enough for me, especially at the CW speeds where most people exist. Plus, I've always felt it was rude to be interrupted during a transmission for anything other than an emergency. One time, when I was a novice, the other guy suddenly broke in frantically: MUST QRT QRT LOST BIAS. That was definitely a valid emergency. I could almost smell his final getting red hot and hear the plate current pegging the meter that evening. Al? W6LX >>>For any practical purpose needed by amateur radio operators that I can think of, the ability to hear between elements is not a life-and-death virtue.? The ability to hear between characters is by far magical enough.? From hullspeed21 at gmail.com Thu Jun 11 13:47:02 2020 From: hullspeed21 at gmail.com (Warren Merkel) Date: Thu, 11 Jun 2020 13:47:02 -0400 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: References: Message-ID: <708323e0-6474-1bad-9bd2-e5f5a30cd8fb@gmail.com> I have made autostart really easy for the KPA500 Remote, KAT500 Remote, and KPA1500 Remote applications at computer restart. I have the script posted here: https://github.com/KD4Z/Kstart-RemoteHost See top of script for instructions. Warren, KD4Z On 6/9/2020 4:42 PM, elecraft-request at mailman.qth.net wrote: > Date: Tue, 9 Jun 2020 14:44:30 -0400 > From: Gordon LaPoint > To:elecraft at mailman.qth.net > Subject: [Elecraft] KAT500 Remote software and KPA500 remote software > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > Can these remote software's be in host mode on startup?? I run a remote > and would like to have them connect to the hardware and be in host mode > on boot of the computer.? Right now I just log on remotely and start > each one as needed. > > Thanks, > > Gordon - N1MGO From rmcgraw at blomand.net Thu Jun 11 13:55:34 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 11 Jun 2020 12:55:34 -0500 Subject: [Elecraft] K3 QSK Timing In-Reply-To: <1051437436.2991309.1591894789228@mail.yahoo.com> References: <86415CD3-28EA-4938-8A11-B5361A19A7A9@socket.net> <1051437436.2991309.1591894789228@mail.yahoo.com> Message-ID: Not being? a high speed CW op nor a contest CW op, I find that QSK is, well, just very nice.?? I don't need to hear between the CW elements, nor even the letters, but more so in between the words.?? Some ops have? a clean fist but run all the words together.? No spaces.? Drives me nuts. Itwouldbelikemewritingthismessageandnotputtinginanyspaces??? Now that just doesn't work with my brain. As to break-in or full QSK, I see it much like a conversation occurs in a room.? There's thoughts shared back and forth between participants and does? the allude to swapping ops.? Yet, one can operate semi-QSK with the same style and results.?? Seems that after all, once CW speed gets above certain points, hearing between CW elements and words become non existent. After 61 years as a ham, starting as a Novice in 1959, I'm becoming a fairly good CW op and likewise enjoying it.?? I use it largely to stimulate my old slow brain. 73 Bob, K4TAX On 6/11/2020 11:59 AM, Al Lorona wrote: > I have always felt as K9ZTV does. > > I don't mean to speak heresy here, and I would never deny anybody's right to use full QSK, such as when chasing DX. However, I have never felt the need to hear between dits. Between characters or words seems more than enough for me, especially at the CW speeds where most people exist. Plus, I've always felt it was rude to be interrupted during a transmission for anything other than an emergency. One time, when I was a novice, the other guy suddenly broke in frantically: MUST QRT QRT LOST BIAS. That was definitely a valid emergency. I could almost smell his final getting red hot and hear the plate current pegging the meter that evening. > > Al? W6LX > > >>>> For any practical purpose needed by amateur radio operators that I can think of, the ability to hear between elements is not a life-and-death virtue.? The ability to hear between characters is by far magical enough. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From n6tv at arrl.net Thu Jun 11 14:04:37 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Thu, 11 Jun 2020 11:04:37 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> References: <002501d63dc5$c7c8b700$575a2500$@qrv.com> <9ae8e8d61165d1116bb1e93cb441fadd@sonic.net> <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> Message-ID: On Mon, Jun 8, 2020 at 12:31 PM E.H. Russell wrote: > I suppose shaping of the curve corners removes harmonics introduced by the > abrupt transitions, allowing an accelerated ramp inbetween. But does this > really reduce the total rise time to 2.5ms? It seems that the softening > process must take some time. Wish I had a K3 here to scope against other > radios. Anything published out there? > Ed, Per your request, I am publishing this scope screen capture which plots the CW rise time in my K3 with the KSYN3A synthesizer upgrade. It's about 4 ms from 0 RF to full RF (2 ms per horizontal division): https://www.kkn.net/~n6tv/N6TV_K3_Ser_1494_FW_05.64_TX_DLY_8_CW_QRQ_OFF.png The vertical markers are there to illustrate that *CONFIG:TX DLY nor 008* provides only about *6 ms* of RF delay after "KEY OUT" goes to ground, not 8 ms, and there is jitter in that delay as well (not shown). If CW QRQ mode is enabled, the delay drops to about 4.6 ms and the TX DLY setting is completely ignored. This was discussed here two years ago. See this post for suggestions on how to avoid hot-switching a non-Elecraft amplifier driven by a K3 or K3S: http://elecraft.365791.n2.nabble.com/Default-K3-transmit-delay-may-be-too-short-for-slow-QRO-amplifiers-td7641779.html 73, Bob, N6TV From w6png at yahoo.com Thu Jun 11 14:13:09 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 11 Jun 2020 11:13:09 -0700 Subject: [Elecraft] FS: KXPA100 with ATU References: <8FB417D7-61BA-47AE-83F4-BF7835F4E41B.ref@yahoo.com> Message-ID: <8FB417D7-61BA-47AE-83F4-BF7835F4E41B@yahoo.com> I listed one of my pair on eBay if anyone is interested. https://www.ebay.com/itm/Elecraft-KXPA100-100w-amplifier-and-ATU-excellent-condition-Factory-build/203018788430?hash=item2f44dcde4e:g:f7kAAOSw9Dle4m6R Paul W6PNG/M0SNA www.nomadic.blog From w4kx at mac.com Thu Jun 11 14:51:36 2020 From: w4kx at mac.com (Tom Doligalski) Date: Thu, 11 Jun 2020 14:51:36 -0400 Subject: [Elecraft] K3 QSK Timing In-Reply-To: References: Message-ID: I still do CW traffic handling, qsk is really important to me. That?s the reason I plunked down m money for the K4. Tom W4KX Sent from my iPad > On Jun 11, 2020, at 1:56 PM, Bob McGraw K4TAX wrote: > > ?Not being a high speed CW op nor a contest CW op, I find that QSK is, well, just very nice. I don't need to hear between the CW elements, nor even the letters, but more so in between the words. Some ops have a clean fist but run all the words together. No spaces. Drives me nuts. Itwouldbelikemewritingthismessageandnotputtinginanyspaces Now that just doesn't work with my brain. > > As to break-in or full QSK, I see it much like a conversation occurs in a room. There's thoughts shared back and forth between participants and does the allude to swapping ops. Yet, one can operate semi-QSK with the same style and results. Seems that after all, once CW speed gets above certain points, hearing between CW elements and words become non existent. > > After 61 years as a ham, starting as a Novice in 1959, I'm becoming a fairly good CW op and likewise enjoying it. I use it largely to stimulate my old slow brain. > > 73 > > Bob, K4TAX > > > > >> On 6/11/2020 11:59 AM, Al Lorona wrote: >> I have always felt as K9ZTV does. >> >> I don't mean to speak heresy here, and I would never deny anybody's right to use full QSK, such as when chasing DX. However, I have never felt the need to hear between dits. Between characters or words seems more than enough for me, especially at the CW speeds where most people exist. Plus, I've always felt it was rude to be interrupted during a transmission for anything other than an emergency. One time, when I was a novice, the other guy suddenly broke in frantically: MUST QRT QRT LOST BIAS. That was definitely a valid emergency. I could almost smell his final getting red hot and hear the plate current pegging the meter that evening. >> >> Al W6LX >> >> >>>>> For any practical purpose needed by amateur radio operators that I can think of, the ability to hear between elements is not a life-and-death virtue. The ability to hear between characters is by far magical enough. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w4kx at mac.com From n6kr at elecraft.com Thu Jun 11 15:23:07 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 11 Jun 2020 12:23:07 -0700 Subject: [Elecraft] K3 QSK Timing In-Reply-To: References: Message-ID: <6F84000F-B2E1-4E3F-9923-D180AA94A55F@elecraft.com> Hi Tom, On the K4, with full QSK selected, you can hear between dots at 40 WPM. There's no need for a "QRQ" mode, as on the K3, because the K4 doesn't have to update a synth between TX and RX. Wayne N6KR > On Jun 11, 2020, at 11:51 AM, Tom Doligalski via Elecraft wrote: > > I still do CW traffic handling, qsk is really important to me. That?s the reason I plunked down m money for the K4. > > Tom W4KX > > Sent from my iPad > >> On Jun 11, 2020, at 1:56 PM, Bob McGraw K4TAX wrote: >> >> ?Not being a high speed CW op nor a contest CW op, I find that QSK is, well, just very nice. I don't need to hear between the CW elements, nor even the letters, but more so in between the words. Some ops have a clean fist but run all the words together. No spaces. Drives me nuts. Itwouldbelikemewritingthismessageandnotputtinginanyspaces Now that just doesn't work with my brain. >> >> As to break-in or full QSK, I see it much like a conversation occurs in a room. There's thoughts shared back and forth between participants and does the allude to swapping ops. Yet, one can operate semi-QSK with the same style and results. Seems that after all, once CW speed gets above certain points, hearing between CW elements and words become non existent. >> >> After 61 years as a ham, starting as a Novice in 1959, I'm becoming a fairly good CW op and likewise enjoying it. I use it largely to stimulate my old slow brain. >> >> 73 >> >> Bob, K4TAX >> >> >> >> >>> On 6/11/2020 11:59 AM, Al Lorona wrote: >>> I have always felt as K9ZTV does. >>> >>> I don't mean to speak heresy here, and I would never deny anybody's right to use full QSK, such as when chasing DX. However, I have never felt the need to hear between dits. Between characters or words seems more than enough for me, especially at the CW speeds where most people exist. Plus, I've always felt it was rude to be interrupted during a transmission for anything other than an emergency. One time, when I was a novice, the other guy suddenly broke in frantically: MUST QRT QRT LOST BIAS. That was definitely a valid emergency. I could almost smell his final getting red hot and hear the plate current pegging the meter that evening. >>> >>> Al W6LX >>> >>> >>>>>> For any practical purpose needed by amateur radio operators that I can think of, the ability to hear between elements is not a life-and-death virtue. The ability to hear between characters is by far magical enough. >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to rmcgraw at blomand.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w4kx at mac.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From w4kx at mac.com Thu Jun 11 17:03:34 2020 From: w4kx at mac.com (Tom Doligalski) Date: Thu, 11 Jun 2020 17:03:34 -0400 Subject: [Elecraft] K3 QSK Timing In-Reply-To: <6F84000F-B2E1-4E3F-9923-D180AA94A55F@elecraft.com> References: <6F84000F-B2E1-4E3F-9923-D180AA94A55F@elecraft.com> Message-ID: <2E318015-5C5A-43FD-B914-2BB7E5F750FB@mac.com> Hi Wayne! I had faith that the excellent qsk in the K3 would carry over to the K4. Thanks so much! I can easily recognize other rigs in cw nets. 50 years of cw traffic! Tom W4KX Sent from my iPad > On Jun 11, 2020, at 3:23 PM, Wayne Burdick wrote: > > ?Hi Tom, > > On the K4, with full QSK selected, you can hear between dots at 40 WPM. > > There's no need for a "QRQ" mode, as on the K3, because the K4 doesn't have to update a synth between TX and RX. > > Wayne > N6KR > > >> On Jun 11, 2020, at 11:51 AM, Tom Doligalski via Elecraft wrote: >> >> I still do CW traffic handling, qsk is really important to me. That?s the reason I plunked down m money for the K4. >> >> Tom W4KX >> >> Sent from my iPad >> >>>> On Jun 11, 2020, at 1:56 PM, Bob McGraw K4TAX wrote: >>> >>> ?Not being a high speed CW op nor a contest CW op, I find that QSK is, well, just very nice. I don't need to hear between the CW elements, nor even the letters, but more so in between the words. Some ops have a clean fist but run all the words together. No spaces. Drives me nuts. Itwouldbelikemewritingthismessageandnotputtinginanyspaces Now that just doesn't work with my brain. >>> >>> As to break-in or full QSK, I see it much like a conversation occurs in a room. There's thoughts shared back and forth between participants and does the allude to swapping ops. Yet, one can operate semi-QSK with the same style and results. Seems that after all, once CW speed gets above certain points, hearing between CW elements and words become non existent. >>> >>> After 61 years as a ham, starting as a Novice in 1959, I'm becoming a fairly good CW op and likewise enjoying it. I use it largely to stimulate my old slow brain. >>> >>> 73 >>> >>> Bob, K4TAX >>> >>> >>> >>> >>>> On 6/11/2020 11:59 AM, Al Lorona wrote: >>>> I have always felt as K9ZTV does. >>>> >>>> I don't mean to speak heresy here, and I would never deny anybody's right to use full QSK, such as when chasing DX. However, I have never felt the need to hear between dits. Between characters or words seems more than enough for me, especially at the CW speeds where most people exist. Plus, I've always felt it was rude to be interrupted during a transmission for anything other than an emergency. One time, when I was a novice, the other guy suddenly broke in frantically: MUST QRT QRT LOST BIAS. That was definitely a valid emergency. I could almost smell his final getting red hot and hear the plate current pegging the meter that evening. >>>> >>>> Al W6LX >>>> >>>> >>>>>>> For any practical purpose needed by amateur radio operators that I can think of, the ability to hear between elements is not a life-and-death virtue. The ability to hear between characters is by far magical enough. >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to rmcgraw at blomand.net >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to w4kx at mac.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6kr at elecraft.com > From n6kr at elecraft.com Thu Jun 11 17:06:50 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 11 Jun 2020 14:06:50 -0700 Subject: [Elecraft] K3 QSK Timing In-Reply-To: <2E318015-5C5A-43FD-B914-2BB7E5F750FB@mac.com> References: <6F84000F-B2E1-4E3F-9923-D180AA94A55F@elecraft.com> <2E318015-5C5A-43FD-B914-2BB7E5F750FB@mac.com> Message-ID: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> I eavesdrop on the 80 m traffic nets occasionally. Impressive level of efficiency and skill among the ops. Who knew there were so many Q-codes :) Wayne N6KR > On Jun 11, 2020, at 2:03 PM, Tom Doligalski wrote: > > Hi Wayne! > > I had faith that the excellent qsk in the K3 would carry over to the K4. Thanks so much! > > I can easily recognize other rigs in cw nets. > > 50 years of cw traffic! > > Tom W4KX > > Sent from my iPad > >> On Jun 11, 2020, at 3:23 PM, Wayne Burdick wrote: >> >> ?Hi Tom, >> >> On the K4, with full QSK selected, you can hear between dots at 40 WPM. >> >> There's no need for a "QRQ" mode, as on the K3, because the K4 doesn't have to update a synth between TX and RX. >> >> Wayne >> N6KR >> >> >>> On Jun 11, 2020, at 11:51 AM, Tom Doligalski via Elecraft wrote: >>> >>> I still do CW traffic handling, qsk is really important to me. That?s the reason I plunked down m money for the K4. >>> >>> Tom W4KX >>> >>> Sent from my iPad >>> >>>>> On Jun 11, 2020, at 1:56 PM, Bob McGraw K4TAX wrote: >>>> >>>> ?Not being a high speed CW op nor a contest CW op, I find that QSK is, well, just very nice. I don't need to hear between the CW elements, nor even the letters, but more so in between the words. Some ops have a clean fist but run all the words together. No spaces. Drives me nuts. Itwouldbelikemewritingthismessageandnotputtinginanyspaces Now that just doesn't work with my brain. >>>> >>>> As to break-in or full QSK, I see it much like a conversation occurs in a room. There's thoughts shared back and forth between participants and does the allude to swapping ops. Yet, one can operate semi-QSK with the same style and results. Seems that after all, once CW speed gets above certain points, hearing between CW elements and words become non existent. >>>> >>>> After 61 years as a ham, starting as a Novice in 1959, I'm becoming a fairly good CW op and likewise enjoying it. I use it largely to stimulate my old slow brain. >>>> >>>> 73 >>>> >>>> Bob, K4TAX >>>> >>>> >>>> >>>> >>>>> On 6/11/2020 11:59 AM, Al Lorona wrote: >>>>> I have always felt as K9ZTV does. >>>>> >>>>> I don't mean to speak heresy here, and I would never deny anybody's right to use full QSK, such as when chasing DX. However, I have never felt the need to hear between dits. Between characters or words seems more than enough for me, especially at the CW speeds where most people exist. Plus, I've always felt it was rude to be interrupted during a transmission for anything other than an emergency. One time, when I was a novice, the other guy suddenly broke in frantically: MUST QRT QRT LOST BIAS. That was definitely a valid emergency. I could almost smell his final getting red hot and hear the plate current pegging the meter that evening. >>>>> >>>>> Al W6LX >>>>> >>>>> >>>>>>>> For any practical purpose needed by amateur radio operators that I can think of, the ability to hear between elements is not a life-and-death virtue. The ability to hear between characters is by far magical enough. >>>>> ______________________________________________________________ >>>>> Elecraft mailing list >>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>>> Help: http://mailman.qth.net/mmfaq.htm >>>>> Post: mailto:Elecraft at mailman.qth.net >>>>> >>>>> This list hosted by: http://www.qsl.net >>>>> Please help support this email list: http://www.qsl.net/donate.html >>>>> Message delivered to rmcgraw at blomand.net >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to w4kx at mac.com >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to n6kr at elecraft.com >> From w6png at yahoo.com Thu Jun 11 17:50:32 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 11 Jun 2020 14:50:32 -0700 Subject: [Elecraft] FS: Elecraft BL2 Kit unbuilt and complete - $29 plus shipping References: Message-ID: I have an unbuilt BL2 kit. Details are our favorite web site ?.. https://elecraft.com/collections/bl2-model/products/bl2-balun New from Elecraft is $49, I?m asking $29. Paypal only to paul.gacek at gmail.com Ship to USA addresses only. $10 shipping. Paul W6PNG/M0SNA www.nomadic.blog From a.durbin at msn.com Thu Jun 11 17:52:14 2020 From: a.durbin at msn.com (Andy Durbin) Date: Thu, 11 Jun 2020 21:52:14 +0000 Subject: [Elecraft] Q codes Message-ID: "Who knew there were so many Q-codes :)" My favorite from my time as a teenager in the cadet force signals wing was QUQ. I had remembered it as "Shall I point my searchlight at a cloud, occulting if necessary, in order to pinpoint my position". Either my memory is playing tricks on me or the meaning changed a bit over the years. The definition I found now is "Shall I train my searchlight nearly vertical on a cloud, occulting if possible and, if your aircraft is seen, deflect the beam up wind and on the water (or land) to facilitate your landing?" Either way, not a code that comes up in most QSO. 73, Andy, k3wyc From w6png at yahoo.com Thu Jun 11 17:52:13 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 11 Jun 2020 14:52:13 -0700 Subject: [Elecraft] FS: Unbuilt Elecraft XG50 signal source - $29 References: Message-ID: I have an unbuilt XG50 kit. Details are our favorite web site ?.. https://elecraft.com/products/xg50-test-oscillator New from Elecraft is $49, I?m asking $29. Paypal only to paul.gacek at gmail.com Ship to USA addresses only. $10 shipping. Paul W6PNG/M0SNA www.nomadic.blog From w6png at yahoo.com Thu Jun 11 17:54:29 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 11 Jun 2020 14:54:29 -0700 Subject: [Elecraft] FS: Elecraft AT1 40db attenuator - $39 References: <7B5E9FF3-D433-4268-84CB-E223F392F6CE.ref@yahoo.com> Message-ID: <7B5E9FF3-D433-4268-84CB-E223F392F6CE@yahoo.com> I have an unbuilt XG50 kit. Details are our favorite web site ?.. https://elecraft.com/products/at1-step-attenuator-kit New from Elecraft is $59, I?m asking $39. Paypal only to paul.gacek at gmail.com Ship to USA addresses only. $10 shipping. Paul W6PNG/M0SNA www.nomadic.blog From w6png at yahoo.com Thu Jun 11 17:57:37 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 11 Jun 2020 14:57:37 -0700 Subject: [Elecraft] FS: Elecraft KPOD (new in box) $259 plus shipping References: <83411915-3724-4F0F-818D-1EDA7ADEEDAF.ref@yahoo.com> Message-ID: <83411915-3724-4F0F-818D-1EDA7ADEEDAF@yahoo.com> I have an unboxed KPOD that I purchased about 9 months ago which is surplus to my needs (I already have one and love it!!) Details are our favorite web site ?.. https://elecraft.com/products/k-pod-control-panel-for-the-k3s-k3 New from Elecraft is $259, I?m asking $289. Paypal only to paul.gacek at gmail.com Ship to USA addresses only. $15 shipping. Paul W6PNG/M0SNA www.nomadic.blog From wa8wzg at wa8wzg.net Thu Jun 11 18:10:36 2020 From: wa8wzg at wa8wzg.net (wa8wzg at wa8wzg.net) Date: Thu, 11 Jun 2020 22:10:36 +0000 Subject: [Elecraft] kpod for sale Message-ID: <08b7c55a4f6c7d1d9c324c794b8eeceb@wa8wzg.net> Hi Paul.. can you confirm you r asking price the kpod,, I am interested in it,, Thanks Tom N7GP ex WA8WZG From k2asp at kanafi.org Thu Jun 11 18:23:22 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 11 Jun 2020 15:23:22 -0700 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: On 6/11/2020 2:52 PM, Andy Durbin wrote: > "Who knew there were so many Q-codes :)" [QUQ] > Either way, not a code that comes up in most QSO. For those of us who were subjected to passing Element 5 to get the FCC Radiotelegraph Operator License, we had to recognize a whole slew of Q-Signals that pertained to commercial message traffic procedure, which also would not come up in our ham QSOs. I forgot most of them by now. :) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From k6dgw at foothill.net Thu Jun 11 18:44:26 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Thu, 11 Jun 2020 15:44:26 -0700 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: I wrote a little ham utility that will look up prefixes, and Q/Z signals, do QRZ searches, and tell me, given a call, if it's a member of my several club associations.? Building the Q/Z signal table was enlightening ... I particularly like ZAA: "You are not observing proper circuit discipline"; ZAB: "Your speed key is improperly adjusted"; and ZAC: "Cease using speed key", especially if used by NCS in sequence.? And, there's always ZBM1: "Place a qualified speed key operator on watch on this frequency", and when this all fails, ZBM2: "Place a competent operator on watch on this frequency." 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/11/2020 2:52 PM, Andy Durbin wrote: > "Who knew there were so many Q-codes :)" > > My favorite from my time as a teenager in the cadet force signals wing was QUQ. I had remembered it as "Shall I point my searchlight at a cloud, occulting if necessary, in order to pinpoint my position". > > Either my memory is playing tricks on me or the meaning changed a bit over the years. The definition I found now is "Shall I train my searchlight nearly vertical on a cloud, occulting if possible and, if your aircraft is seen, deflect the beam up wind and on the water (or land) to facilitate your landing?" > > Either way, not a code that comes up in most QSO. > > 73, > Andy, k3wyc > From w6png at yahoo.com Thu Jun 11 18:50:40 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 11 Jun 2020 15:50:40 -0700 Subject: [Elecraft] Elecraft KPOD (new in box) $259 plus shipping In-Reply-To: <83411915-3724-4F0F-818D-1EDA7ADEEDAF@yahoo.com> References: <83411915-3724-4F0F-818D-1EDA7ADEEDAF.ref@yahoo.com> <83411915-3724-4F0F-818D-1EDA7ADEEDAF@yahoo.com> Message-ID: I guess my I messed up my cut and paste. Should read ? new from Elecraft is $289 and I?m asking $259 + $15 shipping?. Paul > On Jun 11, 2020, at 2:57 PM, Paul Gacek via Elecraft wrote: > > I have an unboxed KPOD that I purchased about 9 months ago which is surplus to my needs (I already have one and love it!!) > > Details are our favorite web site ?.. > > https://elecraft.com/products/k-pod-control-panel-for-the-k3s-k3 > > New from Elecraft is $259, I?m asking $289. > > Paypal only to paul.gacek at gmail.com > > Ship to USA addresses only. $15 shipping. > > Paul > W6PNG/M0SNA > www.nomadic.blog > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From w4kx at mac.com Thu Jun 11 19:36:34 2020 From: w4kx at mac.com (Tom Doligalski) Date: Thu, 11 Jun 2020 19:36:34 -0400 Subject: [Elecraft] K3 QSK Timing In-Reply-To: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> References: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> Message-ID: <56286425-15A4-415F-BB28-A0D95CF5C0C9@mac.com> The P3 is quite useful to an NTS NCS. I just called the Carolinas Net (CN) and was very pleased to see where I could send folks down 2 (while I had folks up 2). Things have got much more difficult with the digital modes! Tom W4KX Sent from my iPad > On Jun 11, 2020, at 5:07 PM, Wayne Burdick wrote: > > ?I eavesdrop on the 80 m traffic nets occasionally. Impressive level of efficiency and skill among the ops. Who knew there were so many Q-codes :) > > Wayne > N6KR > > >> On Jun 11, 2020, at 2:03 PM, Tom Doligalski wrote: >> >> Hi Wayne! >> >> I had faith that the excellent qsk in the K3 would carry over to the K4. Thanks so much! >> >> I can easily recognize other rigs in cw nets. >> >> 50 years of cw traffic! >> >> Tom W4KX >> >> Sent from my iPad >> >>>> On Jun 11, 2020, at 3:23 PM, Wayne Burdick wrote: >>> >>> ?Hi Tom, >>> >>> On the K4, with full QSK selected, you can hear between dots at 40 WPM. >>> >>> There's no need for a "QRQ" mode, as on the K3, because the K4 doesn't have to update a synth between TX and RX. >>> >>> Wayne >>> N6KR >>> >>> >>>> On Jun 11, 2020, at 11:51 AM, Tom Doligalski via Elecraft wrote: >>>> >>>> I still do CW traffic handling, qsk is really important to me. That?s the reason I plunked down m money for the K4. >>>> >>>> Tom W4KX >>>> >>>> Sent from my iPad >>>> >>>>>> On Jun 11, 2020, at 1:56 PM, Bob McGraw K4TAX wrote: >>>>> >>>>> ?Not being a high speed CW op nor a contest CW op, I find that QSK is, well, just very nice. I don't need to hear between the CW elements, nor even the letters, but more so in between the words. Some ops have a clean fist but run all the words together. No spaces. Drives me nuts. Itwouldbelikemewritingthismessageandnotputtinginanyspaces Now that just doesn't work with my brain. >>>>> >>>>> As to break-in or full QSK, I see it much like a conversation occurs in a room. There's thoughts shared back and forth between participants and does the allude to swapping ops. Yet, one can operate semi-QSK with the same style and results. Seems that after all, once CW speed gets above certain points, hearing between CW elements and words become non existent. >>>>> >>>>> After 61 years as a ham, starting as a Novice in 1959, I'm becoming a fairly good CW op and likewise enjoying it. I use it largely to stimulate my old slow brain. >>>>> >>>>> 73 >>>>> >>>>> Bob, K4TAX >>>>> >>>>> >>>>> >>>>> >>>>>> On 6/11/2020 11:59 AM, Al Lorona wrote: >>>>>> I have always felt as K9ZTV does. >>>>>> >>>>>> I don't mean to speak heresy here, and I would never deny anybody's right to use full QSK, such as when chasing DX. However, I have never felt the need to hear between dits. Between characters or words seems more than enough for me, especially at the CW speeds where most people exist. Plus, I've always felt it was rude to be interrupted during a transmission for anything other than an emergency. One time, when I was a novice, the other guy suddenly broke in frantically: MUST QRT QRT LOST BIAS. That was definitely a valid emergency. I could almost smell his final getting red hot and hear the plate current pegging the meter that evening. >>>>>> >>>>>> Al W6LX >>>>>> >>>>>> >>>>>>>>> For any practical purpose needed by amateur radio operators that I can think of, the ability to hear between elements is not a life-and-death virtue. The ability to hear between characters is by far magical enough. >>>>>> ______________________________________________________________ >>>>>> Elecraft mailing list >>>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>>>> Help: http://mailman.qth.net/mmfaq.htm >>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>> >>>>>> This list hosted by: http://www.qsl.net >>>>>> Please help support this email list: http://www.qsl.net/donate.html >>>>>> Message delivered to rmcgraw at blomand.net >>>>> >>>>> ______________________________________________________________ >>>>> Elecraft mailing list >>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>>> Help: http://mailman.qth.net/mmfaq.htm >>>>> Post: mailto:Elecraft at mailman.qth.net >>>>> >>>>> This list hosted by: http://www.qsl.net >>>>> Please help support this email list: http://www.qsl.net/donate.html >>>>> Message delivered to w4kx at mac.com >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to n6kr at elecraft.com >>> > From dxdx at optonline.net Thu Jun 11 21:00:32 2020 From: dxdx at optonline.net (Tony) Date: Thu, 11 Jun 2020 21:00:32 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <0cde9ead-b13f-a2e1-7182-6546eefb4952@gmail.com> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <0cde9ead-b13f-a2e1-7182-6546eefb4952@gmail.com> Message-ID: <971a9ec9-ab00-9b60-3592-421a7014d859@optonline.net> All: The K3S seems to work flawlessly with XLR cable connected to the rear panel mic input as per the groups recommendations. I have pins 1 and 3 connected to the sleeve of the 1/8" plug and pin 2 to the tip. I'm using a dynamic mic so the bias is turned off. This setup works fine on the KX3 as well. If anyone is interested, I have a brand new Heil XLR cable for the K3S that I won't be using. Thanks, Tony -K2MO From jim at n7us.net Thu Jun 11 21:09:51 2020 From: jim at n7us.net (Jim McDonald) Date: Thu, 11 Jun 2020 20:09:51 -0500 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <971a9ec9-ab00-9b60-3592-421a7014d859@optonline.net> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <0cde9ead-b13f-a2e1-7182-6546eefb4952@gmail.com> <971a9ec9-ab00-9b60-3592-421a7014d859@optonline.net> Message-ID: <000e01d64056$2e444700$8accd500$@n7us.net> I have a microHAM microKEYER III that I use with my K3S. I have a Heil HM-10 Dual mic, which uses the Heil cable with an XLR connector, and a Heil headset, which has a 3.5mm phone plug. Both connect to the MKIII, which connects to the rear mic jack on the K3S, and it's easy to switch between the two using the microHAM router software. Jim N7US -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Tony Sent: Thursday, June 11, 2020 20:01 To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question All: The K3S seems to work flawlessly with XLR cable connected to the rear panel mic input as per the groups recommendations. I have pins 1 and 3 connected to the sleeve of the 1/8" plug and pin 2 to the tip. I'm using a dynamic mic so the bias is turned off. This setup works fine on the KX3 as well. If anyone is interested, I have a brand new Heil XLR cable for the K3S that I won't be using. Thanks, Tony -K2MO From rmcgraw at blomand.net Thu Jun 11 22:16:27 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 11 Jun 2020 21:16:27 -0500 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: <971a9ec9-ab00-9b60-3592-421a7014d859@optonline.net> References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <0cde9ead-b13f-a2e1-7182-6546eefb4952@gmail.com> <971a9ec9-ab00-9b60-3592-421a7014d859@optonline.net> Message-ID: Tony; Seems you have done an excellent job and things are working as you expected.?? And a special thanks to you for reporting back to the group your findings and results.?? I wish everyone did that. We'd all be informed. 73 Bob, K4TAX On 6/11/2020 8:00 PM, Tony wrote: > All: > > The K3S seems to work flawlessly with XLR cable connected to the rear > panel mic input as per the groups recommendations. I have pins 1 and 3 > connected to the sleeve of the 1/8" plug and pin 2 to the tip. I'm > using a dynamic mic so the bias is turned off. This setup works fine > on the KX3 as well. > > If anyone is interested, I have a brand new Heil XLR cable for the K3S > that I won't be using. > > Thanks, > > Tony -K2MO > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rmcgraw at blomand.net From dean.k2ww at gmail.com Thu Jun 11 22:36:02 2020 From: dean.k2ww at gmail.com (Dean L) Date: Thu, 11 Jun 2020 22:36:02 -0400 Subject: [Elecraft] FS: KXPA100 with ATU In-Reply-To: <8FB417D7-61BA-47AE-83F4-BF7835F4E41B@yahoo.com> References: <8FB417D7-61BA-47AE-83F4-BF7835F4E41B.ref@yahoo.com> <8FB417D7-61BA-47AE-83F4-BF7835F4E41B@yahoo.com> Message-ID: Why would you pay Epay their "cut" when you have the entire elecraft audience at your findertips? 73 Dean/K2WW On Thu, Jun 11, 2020, 14:14 Paul Gacek via Elecraft < elecraft at mailman.qth.net> wrote: > I listed one of my pair on eBay if anyone is interested. > > > https://www.ebay.com/itm/Elecraft-KXPA100-100w-amplifier-and-ATU-excellent-condition-Factory-build/203018788430?hash=item2f44dcde4e:g:f7kAAOSw9Dle4m6R > > > Paul > W6PNG/M0SNA > www.nomadic.blog > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dean.k2ww at gmail.com > From a.durbin at msn.com Thu Jun 11 22:45:55 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 12 Jun 2020 02:45:55 +0000 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: "ZBM2: "Place a competent operator on watch on this frequency." Is QLF the more sensitive equivalent?? 73, Andy, k3wyc From w6png at yahoo.com Thu Jun 11 22:52:04 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 11 Jun 2020 19:52:04 -0700 Subject: [Elecraft] FS: KXPA100 with ATU In-Reply-To: References: Message-ID: <454A32D7-0BC3-4210-94BB-1D6283BC4A20@yahoo.com> Hi Dean Fair question and at close to a thousand bucks, I want to give buyers the protection that eBay and PayPal offer. Part of that is looking at my past transaction history and taking whatever comfort (or not) from that. Paul Gacek > On Jun 11, 2020, at 7:41 PM, Dean L wrote: > > ?Why would you pay Epay their "cut" when you have the entire elecraft > audience at your findertips? > 73 > Dean/K2WW > >> On Thu, Jun 11, 2020, 14:14 Paul Gacek via Elecraft < >> elecraft at mailman.qth.net> wrote: >> >> I listed one of my pair on eBay if anyone is interested. >> >> >> https://www.ebay.com/itm/Elecraft-KXPA100-100w-amplifier-and-ATU-excellent-condition-Factory-build/203018788430?hash=item2f44dcde4e:g:f7kAAOSw9Dle4m6R >> >> >> Paul >> W6PNG/M0SNA >> www.nomadic.blog >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to dean.k2ww at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From k9ztv at socket.net Thu Jun 11 23:50:06 2020 From: k9ztv at socket.net (K9ZTV) Date: Thu, 11 Jun 2020 22:50:06 -0500 Subject: [Elecraft] K3 QSK Timing In-Reply-To: <56286425-15A4-415F-BB28-A0D95CF5C0C9@mac.com> References: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> <56286425-15A4-415F-BB28-A0D95CF5C0C9@mac.com> Message-ID: <3C2C5F09-A7AB-4291-986B-4E74BF016F95@socket.net> Panadapters are helpful but not essential for CW traffic work. The procedure for the better part of a hundred years has been ... (1) The receiving station always goes to the frequency directed by the NCS or beyond if the directed frequency is busy. (2) Once the receiving station (not the sending station) has found a clear frequency, he repeatedly sends the sending station?s call sign until the sending station locates him. (3) Unless the above protocol is followed, neither station will find the other and will be two ships passing in the night. (4) While previous generations of traffic handlers did not have to contend with digital QRM, they did have to contend with CW QRM on bands many times more crowded than exist today, and with receivers many times less selective. The above time-tested procedure shifts responsibility for finding a clear frequency away from the NCS (where it does not belong) to the the two stations most interested in finding one. (5) In a well-run CW traffic net, the NCS functions as a traffic director by making judicious use of Q-signals specific to traffic work (there aren?t that many) to insure net efficiency and accuracy. (6) National Traffic System nets are not social nets. They clear their traffic and secure. 73, Kent K9ZTV Missouri Section Net Manager > On Jun 11, 2020, at 6:36 PM, Tom Doligalski via Elecraft wrote: > > The P3 is quite useful to an NTS NCS. I just called the Carolinas Net (CN) and was very pleased to see where I could send folks down 2 (while I had folks up 2). Things have got much more difficult with the digital modes! > > Tom W4KX > > Sent from my iPad > >> On Jun 11, 2020, at 5:07 PM, Wayne Burdick wrote: >> >> ?I eavesdrop on the 80 m traffic nets occasionally. Impressive level of efficiency and skill among the ops. Who knew there were so many Q-codes :) >> >> Wayne >> N6KR >> >> >>> On Jun 11, 2020, at 2:03 PM, Tom Doligalski wrote: >>> >>> Hi Wayne! >>> >>> I had faith that the excellent qsk in the K3 would carry over to the K4. Thanks so much! >>> >>> I can easily recognize other rigs in cw nets. >>> >>> 50 years of cw traffic! >>> >>> Tom W4KX >>> >>> Sent from my iPad >>> >>>>> On Jun 11, 2020, at 3:23 PM, Wayne Burdick wrote: >>>> >>>> ?Hi Tom, >>>> >>>> On the K4, with full QSK selected, you can hear between dots at 40 WPM. >>>> >>>> There's no need for a "QRQ" mode, as on the K3, because the K4 doesn't have to update a synth between TX and RX. >>>> >>>> Wayne >>>> N6KR >>>> >>>> >>>>> On Jun 11, 2020, at 11:51 AM, Tom Doligalski via Elecraft wrote: >>>>> >>>>> I still do CW traffic handling, qsk is really important to me. That?s the reason I plunked down m money for the K4. >>>>> >>>>> Tom W4KX >>>>> >>>>> Sent from my iPad >>>>> >>>>>>> On Jun 11, 2020, at 1:56 PM, Bob McGraw K4TAX wrote: >>>>>> >>>>>> ?Not being a high speed CW op nor a contest CW op, I find that QSK is, well, just very nice. I don't need to hear between the CW elements, nor even the letters, but more so in between the words. Some ops have a clean fist but run all the words together. No spaces. Drives me nuts. Itwouldbelikemewritingthismessageandnotputtinginanyspaces Now that just doesn't work with my brain. >>>>>> >>>>>> As to break-in or full QSK, I see it much like a conversation occurs in a room. There's thoughts shared back and forth between participants and does the allude to swapping ops. Yet, one can operate semi-QSK with the same style and results. Seems that after all, once CW speed gets above certain points, hearing between CW elements and words b From dxdx at optonline.net Fri Jun 12 01:06:29 2020 From: dxdx at optonline.net (Tony) Date: Fri, 12 Jun 2020 01:06:29 -0400 Subject: [Elecraft] Balanced Mic to Unbalanced Connection Follow Up Question In-Reply-To: References: <89940e4d-a9a2-ff21-582c-a0ea42c093e8@optonline.net> <0cde9ead-b13f-a2e1-7182-6546eefb4952@gmail.com> <971a9ec9-ab00-9b60-3592-421a7014d859@optonline.net> Message-ID: On 6/11/2020 10:16 PM, Bob McGraw K4TAX wrote: > a special thanks to you for reporting back to the group your findings > and results. Thanks for your input as well Bob. Lots of talented folks on the reflector who take the time to respond to questions. The least one can do is provide feedback. Tony -K2MO > Tony; > > Seems you have done an excellent job and things are working as you > expected.?? And a special thanks to you for reporting back to the > group your findings and results.?? I wish everyone did that. We'd all > be informed. > > 73 > > Bob, K4TAX > > > On 6/11/2020 8:00 PM, Tony wrote: >> All: >> >> The K3S seems to work flawlessly with XLR cable connected to the rear >> panel mic input as per the groups recommendations. I have pins 1 and >> 3 connected to the sleeve of the 1/8" plug and pin 2 to the tip. I'm >> using a dynamic mic so the bias is turned off. This setup works fine >> on the KX3 as well. >> >> If anyone is interested, I have a brand new Heil XLR cable for the >> K3S that I won't be using. >> >> Thanks, >> >> Tony -K2MO >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rmcgraw at blomand.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dxdx at optonline.net From dean.k2ww at gmail.com Fri Jun 12 01:55:38 2020 From: dean.k2ww at gmail.com (Dean L) Date: Fri, 12 Jun 2020 01:55:38 -0400 Subject: [Elecraft] FS: KXPA100 with ATU In-Reply-To: <454A32D7-0BC3-4210-94BB-1D6283BC4A20@yahoo.com> References: <454A32D7-0BC3-4210-94BB-1D6283BC4A20@yahoo.com> Message-ID: That's awfully nice of you. When one of these buyers rips you off through EBAY, saying your 100% FB equipment is not "100% FB" you will change your mind. EBAY is for scoundrels, not Hams with integrity. Hence the "Vig" we Had don't pay! 73 Dean K2WW On Thu, Jun 11, 2020, 22:52 Paul Gacek wrote: > Hi Dean > > Fair question and at close to a thousand bucks, I want to give buyers the > protection that eBay and PayPal offer. > > Part of that is looking at my past transaction history and taking whatever > comfort (or not) from that. > > Paul Gacek > > > On Jun 11, 2020, at 7:41 PM, Dean L wrote: > > > > ?Why would you pay Epay their "cut" when you have the entire elecraft > > audience at your findertips? > > 73 > > Dean/K2WW > > > >> On Thu, Jun 11, 2020, 14:14 Paul Gacek via Elecraft < > >> elecraft at mailman.qth.net> wrote: > >> > >> I listed one of my pair on eBay if anyone is interested. > >> > >> > >> > https://www.ebay.com/itm/Elecraft-KXPA100-100w-amplifier-and-ATU-excellent-condition-Factory-build/203018788430?hash=item2f44dcde4e:g:f7kAAOSw9Dle4m6R > >> > >> > >> Paul > >> W6PNG/M0SNA > >> www.nomadic.blog > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to dean.k2ww at gmail.com > >> > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to w6png at yahoo.com > > From dean.k2ww at gmail.com Fri Jun 12 02:01:40 2020 From: dean.k2ww at gmail.com (Dean L) Date: Fri, 12 Jun 2020 02:01:40 -0400 Subject: [Elecraft] FS: KXPA100 with ATU In-Reply-To: References: <454A32D7-0BC3-4210-94BB-1D6283BC4A20@yahoo.com> Message-ID: My smartphone adjusted my reply. It was supposed to say- EBAY Charges a VIG that we HAMS with integrity don't need to pay. No wonder good hams have a bad taste in their moth for PayPal. Your Milage certainly will vary Things sure are different. Rant over 73 all Dean On Fri, Jun 12, 2020, 01:55 Dean L wrote: > That's awfully nice of you. > > When one of these buyers rips you off through EBAY, saying your 100% FB > equipment is not "100% FB" you will change your mind. > EBAY is for scoundrels, not Hams with integrity. > Hence the "Vig" we Had don't pay! > > 73 > Dean K2WW > > > On Thu, Jun 11, 2020, 22:52 Paul Gacek wrote: > >> Hi Dean >> >> Fair question and at close to a thousand bucks, I want to give buyers the >> protection that eBay and PayPal offer. >> >> Part of that is looking at my past transaction history and taking >> whatever comfort (or not) from that. >> >> Paul Gacek >> >> > On Jun 11, 2020, at 7:41 PM, Dean L wrote: >> > >> > ?Why would you pay Epay their "cut" when you have the entire elecraft >> > audience at your findertips? >> > 73 >> > Dean/K2WW >> > >> >> On Thu, Jun 11, 2020, 14:14 Paul Gacek via Elecraft < >> >> elecraft at mailman.qth.net> wrote: >> >> >> >> I listed one of my pair on eBay if anyone is interested. >> >> >> >> >> >> >> https://www.ebay.com/itm/Elecraft-KXPA100-100w-amplifier-and-ATU-excellent-condition-Factory-build/203018788430?hash=item2f44dcde4e:g:f7kAAOSw9Dle4m6R >> >> >> >> >> >> Paul >> >> W6PNG/M0SNA >> >> www.nomadic.blog >> >> ______________________________________________________________ >> >> Elecraft mailing list >> >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> >> Help: http://mailman.qth.net/mmfaq.htm >> >> Post: mailto:Elecraft at mailman.qth.net >> >> >> >> This list hosted by: http://www.qsl.net >> >> Please help support this email list: http://www.qsl.net/donate.html >> >> Message delivered to dean.k2ww at gmail.com >> >> >> > ______________________________________________________________ >> > Elecraft mailing list >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > Help: http://mailman.qth.net/mmfaq.htm >> > Post: mailto:Elecraft at mailman.qth.net >> > >> > This list hosted by: http://www.qsl.net >> > Please help support this email list: http://www.qsl.net/donate.html >> > Message delivered to w6png at yahoo.com >> >> From ehr at qrv.com Fri Jun 12 06:23:19 2020 From: ehr at qrv.com (E.H. Russell) Date: Fri, 12 Jun 2020 06:23:19 -0400 Subject: [Elecraft] CW rise time setting In-Reply-To: References: <002501d63dc5$c7c8b700$575a2500$@qrv.com> <9ae8e8d61165d1116bb1e93cb441fadd@sonic.net> <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> Message-ID: <008701d640a3$7ebdc060$7c394120$@qrv.com> Bob, Thanks for the scope shot and info. I compared the waveform to the QST K3S review, which seems to show a little over 10ms before RF appears. Is this because they used different settings? Will be interesting to see how the new radio CW looks in time and frequency domains. Also how the turnaround latency is managed. Tks, 73 Ed w2rf From: Bob Wilson, N6TV Sent: Thursday, June 11, 2020 2:05 PM To: Elecraft Reflector Cc: E.H. Russell Subject: Re: [Elecraft] CW rise time setting On Mon, Jun 8, 2020 at 12:31 PM E.H. Russell > wrote: I suppose shaping of the curve corners removes harmonics introduced by the abrupt transitions, allowing an accelerated ramp inbetween. But does this really reduce the total rise time to 2.5ms? It seems that the softening process must take some time. Wish I had a K3 here to scope against other radios. Anything published out there? Ed, Per your request, I am publishing this scope screen capture which plots the CW rise time in my K3 with the KSYN3A synthesizer upgrade. It's about 4 ms from 0 RF to full RF (2 ms per horizontal division): https://www.kkn.net/~n6tv/N6TV_K3_Ser_1494_FW_05.64_TX_DLY_8_CW_QRQ_OFF.png The vertical markers are there to illustrate that CONFIG:TX DLY nor 008 provides only about 6 ms of RF delay after "KEY OUT" goes to ground, not 8 ms, and there is jitter in that delay as well (not shown). If CW QRQ mode is enabled, the delay drops to about 4.6 ms and the TX DLY setting is completely ignored. This was discussed here two years ago. See this post for suggestions on how to avoid hot-switching a non-Elecraft amplifier driven by a K3 or K3S: http://elecraft.365791.n2.nabble.com/Default-K3-transmit-delay-may-be-too-short-for-slow-QRO-amplifiers-td7641779.html 73, Bob, N6TV From ehr at qrv.com Fri Jun 12 06:24:35 2020 From: ehr at qrv.com (E.H. Russell) Date: Fri, 12 Jun 2020 06:24:35 -0400 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: <008c01d640a3$abe2c220$03a84660$@qrv.com> It used to be fun as net control on 80 back in the 50s when my call sign was K5QNF. Ed / W2RF -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Andy Durbin Sent: Thursday, June 11, 2020 5:52 PM To: elecraft at mailman.qth.net Subject: [Elecraft] Q codes "Who knew there were so many Q-codes :)" My favorite from my time as a teenager in the cadet force signals wing was QUQ. I had remembered it as "Shall I point my searchlight at a cloud, occulting if necessary, in order to pinpoint my position". Either my memory is playing tricks on me or the meaning changed a bit over the years. The definition I found now is "Shall I train my searchlight nearly vertical on a cloud, occulting if possible and, if your aircraft is seen, deflect the beam up wind and on the water (or land) to facilitate your landing?" Either way, not a code that comes up in most QSO. 73, Andy, k3wyc ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ehr at qrv.com From w6png at yahoo.com Fri Jun 12 08:53:12 2020 From: w6png at yahoo.com (Paul Gacek) Date: Fri, 12 Jun 2020 05:53:12 -0700 Subject: [Elecraft] SOLD Re: FS: Elecraft BL2 Kit unbuilt and complete - $29 plus shipping In-Reply-To: References: Message-ID: <9A911DB0-AFDB-493E-91F7-2F28935FBA3E@yahoo.com> Paul Gacek > On Jun 11, 2020, at 2:55 PM, Paul Gacek via Elecraft wrote: > > ?I have an unbuilt BL2 kit. > > Details are our favorite web site ?.. > > https://elecraft.com/collections/bl2-model/products/bl2-balun > > New from Elecraft is $49, I?m asking $29. > > Paypal only to paul.gacek at gmail.com > > Ship to USA addresses only. $10 shipping. > > Paul > W6PNG/M0SNA > www.nomadic.blog > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From w6png at yahoo.com Fri Jun 12 08:54:03 2020 From: w6png at yahoo.com (Paul Gacek) Date: Fri, 12 Jun 2020 05:54:03 -0700 Subject: [Elecraft] SOLD Re: FS: Unbuilt Elecraft XG50 signal source - $29 In-Reply-To: References: Message-ID: Paul Gacek > On Jun 11, 2020, at 3:37 PM, Paul Gacek via Elecraft wrote: > > ?I have an unbuilt XG50 kit. > > Details are our favorite web site ?.. > > https://elecraft.com/products/xg50-test-oscillator > > New from Elecraft is $49, I?m asking $29. > > Paypal only to paul.gacek at gmail.com > > Ship to USA addresses only. $10 shipping. > > Paul > W6PNG/M0SNA > www.nomadic.blog > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From w6png at yahoo.com Fri Jun 12 08:54:33 2020 From: w6png at yahoo.com (Paul Gacek) Date: Fri, 12 Jun 2020 05:54:33 -0700 Subject: [Elecraft] SOLD Re: Elecraft AT1 40db attenuator - $39 In-Reply-To: <7B5E9FF3-D433-4268-84CB-E223F392F6CE@yahoo.com> References: <7B5E9FF3-D433-4268-84CB-E223F392F6CE@yahoo.com> Message-ID: Paul Gacek > On Jun 11, 2020, at 3:28 PM, Paul Gacek wrote: > > ?I have an unbuilt XG50 kit. > > Details are our favorite web site ?.. > > https://elecraft.com/products/at1-step-attenuator-kit > > New from Elecraft is $59, I?m asking $39. > > Paypal only to paul.gacek at gmail.com > > Ship to USA addresses only. $10 shipping. > > Paul > W6PNG/M0SNA > www.nomadic.blog From ghyoungman at gmail.com Fri Jun 12 09:34:49 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 12 Jun 2020 09:34:49 -0400 Subject: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux Message-ID: Elecraft Tech Support seems (understandably) a bit slow to respond at this point. This is a repeat of a question I asked a few days ago. Maybe someone else will see it and have some insight (?). I have redone the opposite sideband null procedure in my KX3 (#8342) with KXFL3 filter board, using both the 2013 per-band null procedure, and the 2015 KXFL3 installation/calibration instructions. The procedures are essentially the same, with a minor difference in RIT setting, and the fact that the KXFL3 installation manual calls this out only on 20M rather than on each band individually. With my XG3 as a signal source, I get an excellent opposite sideband null using either FL1 or FL2 bandwidth settings on all bands. With narrow bandwidth and FL3 switched in, the null is very broad and shallow, and the opposite sideband is reduced only on the order of 10dB (+/-) rather than the very deep nulls (60+ dB) obtainable with FL1/FL2. As a result, the opposite sideband remains clearly audible when tuning across a signal ? say CW at 500 Hz bandwidth, etc. If anyone else out there has done either of these procedures, did you get as deep a null with FL3 as with FL1/FL2? I?m trying to determine if this is normal, or if there's an issue in the radio, possibly with my KXFL3 board. Thanks ? Grant NQ5T From c-hawley at illinois.edu Fri Jun 12 10:00:24 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Fri, 12 Jun 2020 14:00:24 +0000 Subject: [Elecraft] MH4 Mic on a K2? In-Reply-To: <3C2C5F09-A7AB-4291-986B-4E74BF016F95@socket.net> References: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> <56286425-15A4-415F-BB28-A0D95CF5C0C9@mac.com>, <3C2C5F09-A7AB-4291-986B-4E74BF016F95@socket.net> Message-ID: The Elecraft manual says the condenser type MH4 mic is acceptable for use on the K2, but I don't see any bias for it in the K2 or SSB2 schematics. I never had a mic for the K2 so I thought I'd get the MH4 and maybe use it on my K3s as well. Am I missing something? Is there bias for it on the K2? Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles From rcrgs at verizon.net Fri Jun 12 10:02:31 2020 From: rcrgs at verizon.net (Robert G Strickland) Date: Fri, 12 Jun 2020 14:02:31 +0000 Subject: [Elecraft] stripping insulation from enamel wires References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> Message-ID: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> Here's an old problem that I've never solved: how to strip the enamel insulation from wires for winding toroids. The instruction say: -dip in a solder pot which I don't have -use a soldering iron to, presumably, burn the insulation off which has never worked for me. Leaving soldering pots aside, the hot iron approach has never burned off any insulation even with tip temp's hovering around 1000F. Just doesn't happen. Maybe it's the soldering iron, maybe my method, but whichever, the enamel insulation just sits there. I end up using a file to scrape off the insulation which is tough on the wires and hard to predict when enough is enough. Any insightful hints? Thanks much. ...robert -- Robert G Strickland, PhD ABPH - KE2WY rcrgs at verizon.net.usa Syracuse, New York, USA From krug261 at yahoo.com Fri Jun 12 10:04:04 2020 From: krug261 at yahoo.com (krug261 at yahoo.com) Date: Fri, 12 Jun 2020 14:04:04 +0000 (UTC) Subject: [Elecraft] Computer Monitor Recommendations References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> Message-ID: <1431851952.2305633.1591970644847@mail.yahoo.com> I realize this subject has come up several times in the past; I've been through the archives. However, computer equipment changes all the time. I am in the market for a new "quiet" monitor for the station. Are there monitors people would happily recommend? Conversely, are there brands/models you would keep away from? Or even a type of monitor you would not recommend for a shack? Thanks and 73, Bob, KA2TQV KX3, KXPA100, PX3 From dave at w8fgu.com Fri Jun 12 10:11:09 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Fri, 12 Jun 2020 10:11:09 -0400 Subject: [Elecraft] MH4 Mic on a K2? In-Reply-To: References: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> <56286425-15A4-415F-BB28-A0D95CF5C0C9@mac.com>, <3C2C5F09-A7AB-4291-986B-4E74BF016F95@socket.net> Message-ID: <172a8debc48.2852.96e80410205cf590e45b6250d389e5fb@w8fgu.com> Hi Charles, Bias for the MH4 (and previous MH2) mic is provided by placing a 5.6k resistor between pin 1 and 6 on the mic connector of the K2. Most of us just solder the resistor to those pins on the back of the mic connector on the Front Panel Board. My MH4 came with a small envelope that contained a 5.6k resistor and 8 2-pin jumpers for the mic config header. The UP and DN buttons on the MH4 switch between VFO A and VFO B on the K2. It switches bands on the K3, KX3 and KX2. 73, Dave, W8FGU On June 12, 2020 10:02:15 "hawley, charles j jr" wrote: > The Elecraft manual says the condenser type MH4 mic is acceptable for use > on the K2, but I don't see any bias for it in the K2 or SSB2 schematics. I > never had a mic for the K2 so I thought I'd get the MH4 and maybe use it on > my K3s as well. > Am I missing something? Is there bias for it on the K2? > > Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave at w8fgu.com From kg9hfrank at gmail.com Fri Jun 12 10:11:57 2020 From: kg9hfrank at gmail.com (Frank Krozel) Date: Fri, 12 Jun 2020 09:11:57 -0500 Subject: [Elecraft] MH4 Mic on a K2? In-Reply-To: References: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> <56286425-15A4-415F-BB28-A0D95CF5C0C9@mac.com> <3C2C5F09-A7AB-4291-986B-4E74BF016F95@socket.net> Message-ID: It is a front panel resistor that needs to be added if.. I recall. -73- Frank KG9H kg9hfrank at gmail.com > On Jun 12, 2020, at 9:00 AM, hawley, charles j jr wrote: > > The Elecraft manual says the condenser type MH4 mic is acceptable for use on the K2, but I don't see any bias for it in the K2 or SSB2 schematics. I never had a mic for the K2 so I thought I'd get the MH4 and maybe use it on my K3s as well. > Am I missing something? Is there bias for it on the K2? > > Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kg9hfrank at gmail.com From k2vco.vic at gmail.com Fri Jun 12 10:24:05 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Fri, 12 Jun 2020 17:24:05 +0300 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> Message-ID: <1fe4dcc4-dc41-6dab-6458-aecce09f623a@gmail.com> Note that there is enameled wire that can't be stripped this way. The enamel is heat-resistant. Of course if you are using the wire that comes with Elecraft kits, you shouldn't have this problem. What I do is put a blob of solder on the tip of the iron. Then, I hole the END of the wire, which of course has no enamel on it, against the tip. That transmits heat into the copper, starting the process. Then I pass the wire through the blob slowly and watch the enamel boil off. Afterwards I scrape lightly with a knife to remove flux and burned enamel. This works fine with the iron set to 750 degrees f. If you aren't succeeding with an iron even hotter, I would suspect that you have the wrong kind of enameled wire. Incidentally, I use a second iron with an old tip for this. Having the blob of solder with flux boiling on it for a long time tends to erode the tip. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 12/06/2020 17:02, Robert G Strickland via Elecraft wrote: > Here's an old problem that I've never solved: how to strip the enamel > insulation from wires for winding toroids. > > The instruction say: > -dip in a solder pot which I don't have > -use a soldering iron to, presumably, burn the insulation off which has > never worked for me. > > Leaving soldering pots aside, the hot iron approach has never burned off > any insulation even with tip temp's hovering around 1000F. Just doesn't > happen. Maybe it's the soldering iron, maybe my method, but whichever, > the enamel insulation just sits there. I end up using a file to scrape > off the insulation which is tough on the wires and hard to predict when > enough is enough. Any insightful hints? Thanks much. > > ...robert > From dave.w0zf at gmail.com Fri Jun 12 10:34:21 2020 From: dave.w0zf at gmail.com (Dave Fugleberg) Date: Fri, 12 Jun 2020 09:34:21 -0500 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> Message-ID: I've used four methods: - melt with a soldering iron - burn off with a small butane torch - scrape off with some very fine grit sandpaper - scrape off with a single edge razor blade All work, but I typically use the sandpaper or the razor blade. With sandpaper, I just double over the sandpaper over the end of the wire, squeeze, and pull the wire out. Sometimes takes 2-3 times to get it clean. With the razor method, I hold the wire down on the workbench and carefully scrape off the insulation, scraping toward the end of the wire. I find this gives me the best control of exactly how much insulation I remove. I just reposition the wire a couple times to get it all off. takes seconds, and is not hard on the wire (provided you have a light touch). Have wound many toroids successfully with all methods. On Fri, Jun 12, 2020 at 9:03 AM Robert G Strickland via Elecraft < elecraft at mailman.qth.net> wrote: > Here's an old problem that I've never solved: how to strip the enamel > insulation from wires for winding toroids. > > The instruction say: > -dip in a solder pot which I don't have > -use a soldering iron to, presumably, burn the insulation off which has > never worked for me. > > Leaving soldering pots aside, the hot iron approach has never burned off > any insulation even with tip temp's hovering around 1000F. Just doesn't > happen. Maybe it's the soldering iron, maybe my method, but whichever, > the enamel insulation just sits there. I end up using a file to scrape > off the insulation which is tough on the wires and hard to predict when > enough is enough. Any insightful hints? Thanks much. > > ...robert > > -- > Robert G Strickland, PhD ABPH - KE2WY > rcrgs at verizon.net.usa > Syracuse, New York, USA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dave.w0zf at gmail.com > From n6tv at arrl.net Fri Jun 12 10:37:29 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Fri, 12 Jun 2020 07:37:29 -0700 Subject: [Elecraft] CW rise time setting In-Reply-To: <008701d640a3$7ebdc060$7c394120$@qrv.com> References: <002501d63dc5$c7c8b700$575a2500$@qrv.com> <9ae8e8d61165d1116bb1e93cb441fadd@sonic.net> <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> <008701d640a3$7ebdc060$7c394120$@qrv.com> Message-ID: The plot in the *QST* review of the K3S shows the delay between "key closure" (the KEY jack of K3S) and RF out. My plot shows the delay between "amp relay closure" (the KEY OUT jack of K3S) and RF, which is more critical. Most folks assume there will be no delay between KEY closure and KEY OUT closure, but there is an extra delay (of about 5 ms, minimum) in the K3S. The same applies to PTT IN closure and KEY OUT closure; that is, there is an unexplained fixed 5 ms delay in the K3S, probably due to slow firmware logic testing for TX Inhibit or an intentional enforcement of some minimum delay in RF output. Most radios close KEY OUT immediately upon key closure of either the KEY jack or the PTT IN jack. The K3 does not; it "hesitates" before closing KEY OUT. I'm also hoping the K4 will eliminate this unusual behavior. 73, Bob, N6TV On Fri, Jun 12, 2020 at 3:23 AM E.H. Russell wrote: > Bob, > > > > Thanks for the scope shot and info. I compared the waveform to the QST K3S > review, which seems to show a little over 10ms before RF appears. Is this > because they used different settings? > > > > Will be interesting to see how the new radio CW looks in time and > frequency domains. Also how the turnaround latency is managed. > > > > Tks, > > 73 Ed w2rf > > > > > > > > *From:* Bob Wilson, N6TV > *Sent:* Thursday, June 11, 2020 2:05 PM > *To:* Elecraft Reflector > *Cc:* E.H. Russell > *Subject:* Re: [Elecraft] CW rise time setting > > > > On Mon, Jun 8, 2020 at 12:31 PM E.H. Russell wrote: > > I suppose shaping of the curve corners removes harmonics introduced by the > abrupt transitions, allowing an accelerated ramp inbetween. But does this > really reduce the total rise time to 2.5ms? It seems that the softening > process must take some time. Wish I had a K3 here to scope against other > radios. Anything published out there? > > > > Ed, > > > > Per your request, I am publishing this scope screen capture which plots > the CW rise time in my K3 with the KSYN3A synthesizer upgrade. It's about > 4 ms from 0 RF to full RF (2 ms per horizontal division): > > > > https://www.kkn.net/~n6tv/N6TV_K3_Ser_1494_FW_05.64_TX_DLY_8_CW_QRQ_OFF.png > > > > The vertical markers are there to illustrate that *CONFIG:TX DLY nor 008* > provides only about *6 ms* of RF delay after "KEY OUT" goes to ground, > not 8 ms, and there is jitter in that delay as well (not shown). If CW QRQ > mode is enabled, the delay drops to about 4.6 ms and the TX DLY setting is > completely ignored. > > > > This was discussed here two years ago. See this post for suggestions on > how to avoid hot-switching a non-Elecraft amplifier driven by a K3 or K3S: > > > > > http://elecraft.365791.n2.nabble.com/Default-K3-transmit-delay-may-be-too-short-for-slow-QRO-amplifiers-td7641779.html > > > > > 73, > > Bob, N6TV > From scholl at scholl.org Fri Jun 12 11:25:12 2020 From: scholl at scholl.org (cbscholl) Date: Fri, 12 Jun 2020 08:25:12 -0700 (MST) Subject: [Elecraft] Spurs on 6 meters on FT8 Message-ID: <1591975512827-0.post@n2.nabble.com> I am having a problem only on 6 meters with spurs being generated while using FT8. I have the audio level turned down so no alc reading appears or even lower and that does not eliminate them. The other point that I noticed is that only on 6 meters the 100 final turns on above 8 watts rather than 12 watts on other bands. Does anyone have any ideas or what else I can check? Barney K3LA -- Sent from: http://elecraft.365791.n2.nabble.com/ From donovanf at starpower.net Fri Jun 12 11:40:49 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 12 Jun 2020 11:40:49 -0400 (EDT) Subject: [Elecraft] Spurs on 6 meters on FT8 In-Reply-To: <1591975512827-0.post@n2.nabble.com> Message-ID: <1258189660.5032400.1591976449657.JavaMail.root@starpower.net> Hi Barney, Please share some details about the nature of the spurious signals you're trying to solve Thanks 73 Frank W3LPL ----- Original Message ----- From: "cbscholl" To: elecraft at mailman.qth.net Sent: Friday, June 12, 2020 3:25:12 PM Subject: [Elecraft] Spurs on 6 meters on FT8 I am having a problem only on 6 meters with spurs being generated while using FT8. I have the audio level turned down so no alc reading appears or even lower and that does not eliminate them. The other point that I noticed is that only on 6 meters the 100 final turns on above 8 watts rather than 12 watts on other bands. Does anyone have any ideas or what else I can check? Barney K3LA -- Sent from: http://elecraft.365791.n2.nabble.com/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From c-hawley at illinois.edu Fri Jun 12 12:07:06 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Fri, 12 Jun 2020 16:07:06 +0000 Subject: [Elecraft] MH4 Mic on a K2? In-Reply-To: <172a8debc48.2852.96e80410205cf590e45b6250d389e5fb@w8fgu.com> References: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> <56286425-15A4-415F-BB28-A0D95CF5C0C9@mac.com>, <3C2C5F09-A7AB-4291-986B-4E74BF016F95@socket.net> , <172a8debc48.2852.96e80410205cf590e45b6250d389e5fb@w8fgu.com> Message-ID: Ah so... That's going to take some disassembly. Disconnect the battery. Remove the RTC and unscrew the control board and pull the front panel off I guess. I just looked and need to install the 5 volt jumper and then the resistor. I finished building this 10 years ago so I had to get out the assembly manual ? Thanks for the info, 73, Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: Dave Van Wallaghen Sent: Friday, June 12, 2020 9:11 AM To: hawley, charles j jr ; Elecraft Reflector Subject: Re: [Elecraft] MH4 Mic on a K2? Hi Charles, Bias for the MH4 (and previous MH2) mic is provided by placing a 5.6k resistor between pin 1 and 6 on the mic connector of the K2. Most of us just solder the resistor to those pins on the back of the mic connector on the Front Panel Board. My MH4 came with a small envelope that contained a 5.6k resistor and 8 2-pin jumpers for the mic config header. The UP and DN buttons on the MH4 switch between VFO A and VFO B on the K2. It switches bands on the K3, KX3 and KX2. 73, Dave, W8FGU On June 12, 2020 10:02:15 "hawley, charles j jr" wrote: The Elecraft manual says the condenser type MH4 mic is acceptable for use on the K2, but I don't see any bias for it in the K2 or SSB2 schematics. I never had a mic for the K2 so I thought I'd get the MH4 and maybe use it on my K3s as well. Am I missing something? Is there bias for it on the K2? Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to dave at w8fgu.com From donwilh at embarqmail.com Fri Jun 12 12:15:21 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 12 Jun 2020 12:15:21 -0400 Subject: [Elecraft] Spurs on 6 meters on FT8 In-Reply-To: <1591975512827-0.post@n2.nabble.com> References: <1591975512827-0.post@n2.nabble.com> Message-ID: Barney, I assume you are talking about a K3/K3S or KX3. For those you need to increase the audio drive so you have 4 bars solid showing on the ALC meter with the 5th flashing. That is the NO ALC point on those radios. It is required for proper power control. See the article on my website www.w3fpr.com for more detail. I don't know if that will help with the spurs, but it will help with your power output and keep the radio from Power Hunting. 73, Don W3FPR On 6/12/2020 11:25 AM, cbscholl wrote: > I am having a problem only on 6 meters with spurs being generated while using > FT8. I have the audio level turned down so no alc reading appears or even > lower and that does not eliminate them. The other point that I noticed is > that only on 6 meters the 100 final turns on above 8 watts rather than 12 > watts on other bands. Does anyone have any ideas or what else I can check? > Barney K3LA From donwilh at embarqmail.com Fri Jun 12 12:19:47 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 12 Jun 2020 12:19:47 -0400 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> Message-ID: <1098ff85-f92c-a9e9-9f63-0a46eeb95ec2@embarqmail.com> Robert, Those instructions are for heat-strippable wire. If you have enamel or formvar covered wire, that must be mechanically stripped. 73, Don W3FPR On 6/12/2020 10:02 AM, Robert G Strickland via Elecraft wrote: > Here's an old problem that I've never solved: how to strip the enamel > insulation from wires for winding toroids. > > The instruction say: > -dip in a solder pot which I don't have > -use a soldering iron to, presumably, burn the insulation off which has > never worked for me. > > Leaving soldering pots aside, the hot iron approach has never burned off > any insulation even with tip temp's hovering around 1000F. Just doesn't > happen. Maybe it's the soldering iron, maybe my method, but whichever, > the enamel insulation just sits there. I end up using a file to scrape > off the insulation which is tough on the wires and hard to predict when > enough is enough. Any insightful hints? Thanks much. > > ...robert > From dave at w8fgu.com Fri Jun 12 12:20:00 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Fri, 12 Jun 2020 16:20:00 +0000 Subject: [Elecraft] MH4 Mic on a K2? In-Reply-To: References: <1101806F-BF08-4F34-966A-3DF7FDB8E354@elecraft.com> <56286425-15A4-415F-BB28-A0D95CF5C0C9@mac.com> Message-ID: Chuck, If you want the VFO switching capability with the up and down buttons on the MH4, you will want the jumpers installed for the UP and DN function on the header also. If you look at the KSB2 manual, it just says to install all 8 jumpers for the MH2 (and now MH4). I do know some ops who have built an adapter to fit the 8-pin mic connector and is placed in between the mic and connector. They then wire the adapter to match the mic they are using. Probably more work than just removing the Front Panel though ;-) 73, Dave, W8FGU On 6/12/2020 12:07:06 PM, "hawley, charles j jr" wrote: >Ah so... >That's going to take some disassembly. Disconnect the battery. Remove >the RTC and unscrew the control board and pull the front panel off I >guess. I just looked and need to install the 5 volt jumper and then the >resistor. I finished building this 10 years ago so I had to get out the >assembly manual ? >Thanks for the info, > >73, > >Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > >-------------------------------------------------------------------------------- >From: Dave Van Wallaghen >Sent: Friday, June 12, 2020 9:11 AM >To: hawley, charles j jr ; Elecraft Reflector > >Subject: Re: [Elecraft] MH4 Mic on a K2? > >Hi Charles, > >Bias for the MH4 (and previous MH2) mic is provided by placing a 5.6k >resistor between pin 1 and 6 on the mic connector of the K2. > >Most of us just solder the resistor to those pins on the back of the >mic connector on the Front Panel Board. My MH4 came with a small >envelope that contained a 5.6k resistor and 8 2-pin jumpers for the mic >config header. The UP and DN buttons on the MH4 switch between VFO A >and VFO B on the K2. It switches bands on the K3, KX3 and KX2. > >73, >Dave, W8FGU > >On June 12, 2020 10:02:15 "hawley, charles j jr" > wrote: > >>The Elecraft manual says the condenser type MH4 mic is acceptable for >>use on the K2, but I don't see any bias for it in the K2 or SSB2 >>schematics. I never had a mic for the K2 so I thought I'd get the MH4 >>and maybe use it on my K3s as well. >>Am I missing something? Is there bias for it on the K2? >> >>Chuck Hawley >> c-hawley at illinois.edu >> >> Amateur Radio, KE9UW >> aka Jack, BMW Motorcycles >>______________________________________________________________ >>Elecraft mailing list >>Home: http://mailman.qth.net/mailman/listinfo/elecraft >> >>Help: http://mailman.qth.net/mmfaq.htm >> >>Post: mailto:Elecraft at mailman.qth.net >> >>This list hosted by: http://www.qsl.net >> >>Please help support this email list: http://www.qsl.net/donate.html >> >>Message delivered to dave at w8fgu.com > From QRP5W at roadrunner.com Fri Jun 12 12:24:51 2020 From: QRP5W at roadrunner.com (QRP5W at roadrunner.com) Date: Fri, 12 Jun 2020 16:24:51 +0000 Subject: [Elecraft] stripping insulation from enamel wires Message-ID: The old tried and true method is to use an X-acto knife to scrape the insulation off with. Simple, not very elegant but it always works. 72 Howard Kraus, K2UD -----------------------------------------From: "Robert G Strickland via Elecraft" To: elecraft at mailman.qth.net Cc: Sent: Friday June 12 2020 10:03:58AM Subject: [Elecraft] stripping insulation from enamel wires Here's an old problem that I've never solved: how to strip the enamel insulation from wires for winding toroids. The instruction say: -dip in a solder pot which I don't have -use a soldering iron to, presumably, burn the insulation off which has never worked for me. Leaving soldering pots aside, the hot iron approach has never burned off any insulation even with tip temp's hovering around 1000F. Just doesn't happen. Maybe it's the soldering iron, maybe my method, but whichever, the enamel insulation just sits there. I end up using a file to scrape off the insulation which is tough on the wires and hard to predict when enough is enough. Any insightful hints? Thanks much. ..robert -- Robert G Strickland, PhD ABPH - KE2WY rcrgs at verizon.net.usa Syracuse, New York, USA ______________________________________________________________ Elecraft mailing list Home: Message delivered to qrp5w at roadrunner.com Links: ------ [1] http://mailman.qth.net/mmfaq.htm http://mailman.qth.net/mmfaq.htm /> Post: mailto:Elecraft at mailman.qth.net This list hosted by: References: Message-ID: <057cf057-8d99-9064-e684-71e3d305ffee@embarqmail.com> Yes, that always works, BUT if you nick the wire, it will break, especially on smaller gauge wire. For #20 and larger it is likely OK. 73, Don W3FPR On 6/12/2020 12:24 PM, QRP5W at roadrunner.com wrote: > The old tried and true method is to use an X-acto knife to scrape the > insulation off with. Simple, not very elegant but it always works. > From pincon at erols.com Fri Jun 12 11:06:38 2020 From: pincon at erols.com (Charlie T) Date: Fri, 12 Jun 2020 11:06:38 -0400 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> Message-ID: <006201d640cb$1689d9c0$439d8d40$@erols.com> It depends on whether your wire has "enamel" or "Ny-Clad" insulation. The darker enamel can be removed with a "paint-remover" like stuff that was sold in in little square bottles by CG and others. A quick search failed to locate any here, but I've got some somewhere (??) The lighter color stuff is probably Ny-Clad and will have to be sanded, or scrapped off as the enamel remover won't cut it. I find that some 400 grit paper with take off most insulation without damaging the wire as can happen by scrapping. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Robert G Strickland via Elecraft Sent: Friday, June 12, 2020 10:03 AM To: elecraft at mailman.qth.net Subject: [Elecraft] stripping insulation from enamel wires Here's an old problem that I've never solved: how to strip the enamel insulation from wires for winding toroids. The instruction say: -dip in a solder pot which I don't have -use a soldering iron to, presumably, burn the insulation off which has never worked for me. Leaving soldering pots aside, the hot iron approach has never burned off any insulation even with tip temp's hovering around 1000F. Just doesn't happen. Maybe it's the soldering iron, maybe my method, but whichever, the enamel insulation just sits there. I end up using a file to scrape off the insulation which is tough on the wires and hard to predict when enough is enough. Any insightful hints? Thanks much. ...robert -- Robert G Strickland, PhD ABPH - KE2WY rcrgs at verizon.net.usa Syracuse, New York, USA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pincon at erols.com From a.durbin at msn.com Fri Jun 12 12:45:09 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 12 Jun 2020 16:45:09 +0000 Subject: [Elecraft] CW rise time setting Message-ID: "Most folks assume there will be no delay between KEY closure and KEY OUT closure, but there is an extra delay (of about 5 ms, minimum) in the K3S." I suppose I'm not in the "most folks" group. I measured this delay when investigating the keying characterisitcs of my Kenwood TS-590S. Key down to amplifier relay closure was 2 ms for the configuration under test. RF started rising about 14 ms after key closure. 73, Andy k3wyc From k6dgw at foothill.net Fri Jun 12 13:41:46 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 12 Jun 2020 10:41:46 -0700 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: Good point Andy!? QLF seems to refer to sending ability.? ZBM2 refers to overall operating ability ... I think ... ACP's 126 and 131 leave a lot to the reader's imagination. Jack Phillips, MGY, might have used it on "Iceberg Night" had the Z's existed then when he was berating the operators on the Californian and a Navy vessel for poor operating procedure. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/11/2020 7:45 PM, Andy Durbin wrote: > "ZBM2: "Place a competent operator on watch on this frequency." > > Is QLF the more sensitive equivalent?? > > 73, > Andy, k3wyc > From tony.kaz at verizon.net Fri Jun 12 13:54:09 2020 From: tony.kaz at verizon.net (tony.kaz at verizon.net) Date: Fri, 12 Jun 2020 13:54:09 -0400 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: <094e01d640e2$79bb6880$6d323980$@verizon.net> Only ever got one QLF. In the late 1970's, two minutes to go at the end of the PA QSO party and found the last mult to get a clean sweep. When I went to send the key fell apart. Yanked off the wires and touched them together to send call and info in CW. But I got him in the log and a clean sweep. N2TK, Tony -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Fred Jensen Sent: Friday, June 12, 2020 1:42 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Q codes Good point Andy! QLF seems to refer to sending ability. ZBM2 refers to overall operating ability ... I think ... ACP's 126 and 131 leave a lot to the reader's imagination. Jack Phillips, MGY, might have used it on "Iceberg Night" had the Z's existed then when he was berating the operators on the Californian and a Navy vessel for poor operating procedure. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/11/2020 7:45 PM, Andy Durbin wrote: > "ZBM2: "Place a competent operator on watch on this frequency." > > Is QLF the more sensitive equivalent?? > > 73, > Andy, k3wyc > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to tony.kaz at verizon.net From a.durbin at msn.com Fri Jun 12 14:12:41 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 12 Jun 2020 18:12:41 +0000 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: ACP 131(F) - https://web.archive.org/web/20130215140321/http://jcs.dtic.mil/j6/cceb/acps/acp131/ACP131F09.pdf Offered to NATO for adoption: https://archives.nato.int/uploads/r/null/1/2/127387/SGM-0921-55_ENG_PDP.pdf Was anyone actually expected to memorize all of these codes? 73, Andy, k3wyc From jim at audiosystemsgroup.com Fri Jun 12 14:21:25 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 12 Jun 2020 11:21:25 -0700 Subject: [Elecraft] Evaluating Keying Characteristics In-Reply-To: <008701d640a3$7ebdc060$7c394120$@qrv.com> References: <002501d63dc5$c7c8b700$575a2500$@qrv.com> <9ae8e8d61165d1116bb1e93cb441fadd@sonic.net> <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> <008701d640a3$7ebdc060$7c394120$@qrv.com> Message-ID: On 6/12/2020 3:23 AM, E.H. Russell wrote: > Thanks for the scope shot and info. I compared the waveform to the QST K3S review, which seems to show a little over 10ms before RF appears. Is this because they used different settings? I repeat my advice that keying characteristics must be evaluated in the FREQUENCY domain (as occupied bandwidth), NOT in the TIME domain (oscilloscope). The reason has been stated here many times -- it's not only the TIME of the transition that determines bandwidth, it is the SHAPE of the transition from off to on and on to off that matters, NOT the time it takes, and this cannot be seen on a scope. 73, Jim K9YC From k6dgw at foothill.net Fri Jun 12 14:26:48 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 12 Jun 2020 11:26:48 -0700 Subject: [Elecraft] Q codes In-Reply-To: <3578BBD8-3297-4762-900F-A5BFB53E57BE@me.com> References: <3578BBD8-3297-4762-900F-A5BFB53E57BE@me.com> Message-ID: <73877207-4f97-78a4-dfe8-b320c483b65f@foothill.net> QLF [not officially assigned] has been around a long time with several similar meanings.? A common [and fairly ancient] one is "Are you sending with your left foot?" and "Please attempt to send with your left foot." I believe QSD, "Is my keying defective?" and "Your keying is defective", refers to the technical characteristics of keying such as contact bounce, missing dits, broken dahs, etc. Purely out of nostalgia, I dabble in traffic handling via the Nor Cal Net.? I'm one of two N. NV stations so I mostly receive and deliver.? One of the changes from the heyday of NTS is that many operators are hovering within microns over their paddle ready to pounce, resulting in a lot of doubles and even triples and general confusion.? I guess they just can't wait to send something.? They are often the same folks on bugs set way faster than they can actually send reliably.? That, coupled with the fact that everyone is exactly zero beat and our radios all sound alike these days can really screw up a net. Someone posted the procedure for moving off the net QRG to receive or send, pointing out that it's the receiving station who is supposed to find the clear frequency.? Unfortunately, that convention seems to have died, these same operators, needing to be the first to send, nearly always are calling me well before I find a clear spot.? I believe they would be candidates for ZBM2. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/12/2020 10:59 AM, Kevin McQuiggin wrote: > QLF was a joke Q code meaning ?Quality of your (CW) sounds like you are sending it with your left foot?, hence ?QLF?. From QST in the 1930s, I recall. > >> On Jun 12, 2020, at 10:41 AM, Fred Jensen wrote: >> >> Good point Andy! QLF seems to refer to sending ability. ZBM2 refers to overall operating ability ... I think ... ACP's 126 and 131 leave a lot to the reader's imagination. Jack Phillips, MGY, might have used it on "Iceberg Night" had the Z's existed then when he was berating the operators on the Californian and a Navy vessel for poor operating procedure. >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> On 6/11/2020 7:45 PM, Andy Durbin wrote: >>> "ZBM2: "Place a competent operator on watch on this frequency." >>> >>> Is QLF the more sensitive equivalent?? >>> >>> 73, >>> Andy, k3wyc >>> From k6dgw at foothill.net Fri Jun 12 14:33:09 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 12 Jun 2020 11:33:09 -0700 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: There were a number of Q-signal questions on my 2T exam in 1956.? The Z's were used primarily by the military, I don't recall any in commercial ops.? Very common on military TTY channels in the 60's. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/12/2020 11:12 AM, Andy Durbin wrote: > ACP 131(F) - > > https://web.archive.org/web/20130215140321/http://jcs.dtic.mil/j6/cceb/acps/acp131/ACP131F09.pdf > > Offered to NATO for adoption: > > https://archives.nato.int/uploads/r/null/1/2/127387/SGM-0921-55_ENG_PDP.pdf > > Was anyone actually expected to memorize all of these codes? > > 73, > Andy, k3wyc > From rcrgs at verizon.net Fri Jun 12 14:46:52 2020 From: rcrgs at verizon.net (Robert G Strickland) Date: Fri, 12 Jun 2020 18:46:52 +0000 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> Message-ID: <23e47684-9f78-b7ff-900c-4424490be171@verizon.net> Thanks for the many replies. I should have mentioned that the wire to be stripped comes from Elecraft in the K2 antenna tuner kit. Elecraft recommends the solder pot or the solder iron; they discourage using a lighter/flame. ...robert On 6/12/2020 02:02 PM, Robert G Strickland via Elecraft wrote: > Here's an old problem that I've never solved: how to strip the enamel > insulation from wires for winding toroids. > > The instruction say: > -dip in a solder pot which I don't have > -use a soldering iron to, presumably, burn the insulation off which has > never worked for me. > > Leaving soldering pots aside, the hot iron approach has never burned off > any insulation even with tip temp's hovering around 1000F. Just doesn't > happen. Maybe it's the soldering iron, maybe my method, but whichever, > the enamel insulation just sits there. I end up using a file to scrape > off the insulation which is tough on the wires and hard to predict when > enough is enough. Any insightful hints? Thanks much. > > ..robert > -- Robert G Strickland, PhD ABPH - KE2WY rcrgs at verizon.net.usa Syracuse, New York, USA From a.durbin at msn.com Fri Jun 12 14:54:24 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 12 Jun 2020 18:54:24 +0000 Subject: [Elecraft] Evaluating Keying Characteristics Message-ID: "I repeat my advice that keying characteristics must be evaluated in the FREQUENCY domain (as occupied bandwidth), NOT in the TIME domain (oscilloscope). The reason has been stated here many times -- it's not only the TIME of the transition that determines bandwidth, it is the SHAPE of the transition from off to on and on to off that matters, NOT the time it takes, and this cannot be seen on a scope." The frequency domain will have no information (other than lack of signal) until RF is generated. A spectrum analyzer cannot be used to determine the timing of the various switching events during CW keying. It can only provide useful information while RF is being generated. Your post was in reply to "Thanks for the scope shot and info. I compared the waveform to the QST K3S review, which seems to show a little over 10ms before RF appears. Is this because they used different settings?" This appears to relate to the timing of the switching events not to the characteristics of the RF itself. I think the oscilloscope is the right instrument for this measurement. I would submit that both a 'scope and a spectrum analyzer are required for a full evaluation of keying characteristics. 73, Andy, k3wyc From kt1j at madriver.com Fri Jun 12 14:53:42 2020 From: kt1j at madriver.com (Henry) Date: Fri, 12 Jun 2020 14:53:42 -0400 Subject: [Elecraft] FS: LP-PAN-2 , XONAR U7 Message-ID: For sale: LP-PAN-2 SDR IQ Panadapter, ser. no. 02298 for K3 and XONAR U7 192 kHz USB soundcard in original boxes. Includes all cabling. $175.00 plus shipping. Henry, KT1J From linehangp at me.com Fri Jun 12 14:58:36 2020 From: linehangp at me.com (George P Linehan III) Date: Fri, 12 Jun 2020 11:58:36 -0700 Subject: [Elecraft] KX-3 Loaded As New $1,350 Shipped ConUsa Message-ID: <22A145D4-7B04-46AE-A09F-67446B2C2058@me.com> KX-3, unfielded. Non-smoker. Tuner, Clock, Filter Battery, Charger & Bag From mcquiggi at sfu.ca Fri Jun 12 14:58:34 2020 From: mcquiggi at sfu.ca (Kevin McQuiggin) Date: Fri, 12 Jun 2020 11:58:34 -0700 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <23e47684-9f78-b7ff-900c-4424490be171@verizon.net> References: <23e47684-9f78-b7ff-900c-4424490be171@verizon.net> Message-ID: <48B5A2D6-C51B-4219-B01C-C4722F352433@sfu.ca> A better way is to use an enamelled wire stripping tool! They are cheap and work much better than the other methods, which honestly were poorly effective for me for years. For my last project I bought the tool, it was a joy to use. 73, Kevin VE7ZD Sent from my iPhone > On Jun 12, 2020, at 11:47, Robert G Strickland via Elecraft wrote: > > ?Thanks for the many replies. I should have mentioned that the wire to be stripped comes from Elecraft in the K2 antenna tuner kit. Elecraft recommends the solder pot or the solder iron; they discourage using a lighter/flame. > ...robert > >> On 6/12/2020 02:02 PM, Robert G Strickland via Elecraft wrote: >> Here's an old problem that I've never solved: how to strip the enamel >> insulation from wires for winding toroids. >> >> The instruction say: >> -dip in a solder pot which I don't have >> -use a soldering iron to, presumably, burn the insulation off which has >> never worked for me. >> >> Leaving soldering pots aside, the hot iron approach has never burned off >> any insulation even with tip temp's hovering around 1000F. Just doesn't >> happen. Maybe it's the soldering iron, maybe my method, but whichever, >> the enamel insulation just sits there. I end up using a file to scrape >> off the insulation which is tough on the wires and hard to predict when >> enough is enough. Any insightful hints? Thanks much. >> >> ..robert >> > > -- > Robert G Strickland, PhD ABPH - KE2WY > rcrgs at verizon.net.usa > Syracuse, New York, USA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mcquiggi at sfu.ca From kl7cw at mtaonline.net Fri Jun 12 15:17:46 2020 From: kl7cw at mtaonline.net (Frederick Dwight) Date: Fri, 12 Jun 2020 11:17:46 -0800 Subject: [Elecraft] stripping insulation Message-ID: <20200612191843196@smtp.email-protect.gosecure.net> I have found the solder iron method works for all my Elecraft projects, and for some but not all ?enamel? wire from other sources. I just use a moderate temperature soldering station. I think the important clue is to place a glob of solder on the tip, place the wire in the glob, and add a bit more solder for the perhaps 10 or 20 seconds it may take. Another way is to use a scrap of fine grit sandpaper in your fingers and gently stroke toward the end of the wire. If you need to scrape, or sandpaper the wire and do not get off all the enamel, it is easy to finish the job with a solder blob since you should get good heat transfer into the wire. Make sure you use good tin/lead rosin core solder which will tin the wire nicely. Happy soldering KL7CW Sent from Mail for Windows 10 From donwilh at embarqmail.com Fri Jun 12 15:31:15 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 12 Jun 2020 15:31:15 -0400 Subject: [Elecraft] stripping insulation In-Reply-To: <20200612191843196@smtp.email-protect.gosecure.net> References: <20200612191843196@smtp.email-protect.gosecure.net> Message-ID: <4750d016-4d61-3a84-08f8-b9a324dda685@embarqmail.com> For those who own a desoldering iron like the Hakko 808, stripping the enamel from heat strippable wire is quick and easy - just like a solder pot. Melt a bit of solder on the tip and push the wire into the tip center. Wait a bit for 'smoke' to appear and then pull the trigger. Presto, stripped lead. Just clean the inside of the tip with the tip cleaning rod after a few leads have been stripped. If you don't do that, the tip will clog. 73, Don W3FPR On 6/12/2020 3:17 PM, Frederick Dwight wrote: > I have found the solder iron method works for all my Elecraft projects, and for some but not all ?enamel? wire from other sources. > I just use a moderate temperature soldering station. I think the important clue is to place a glob of solder on the tip, > place the wire in the glob, and add a bit more solder for the perhaps 10 or 20 seconds it may take. Another way > is to use a scrap of fine grit sandpaper in your fingers and gently stroke toward the end of the wire. > If you need to scrape, or sandpaper the wire and do not get off all the enamel, it is easy to finish the > job with a solder blob since you should get good heat transfer into the wire. Make sure you use good > tin/lead rosin core solder which will tin the wire nicely. Happy soldering KL7CW From gwwa5uih at hotmail.com Fri Jun 12 15:32:08 2020 From: gwwa5uih at hotmail.com (George Winship, NC5G) Date: Fri, 12 Jun 2020 12:32:08 -0700 (MST) Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> References: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> Message-ID: <1591990328177-0.post@n2.nabble.com> I have used the solder blob method with success. However, when I was building my K2 about 19 years ago, I used an old bullet shell casing for a solder pot. Secured it with vice grip pliers to hold it verticle, laid the soldering iron to side of the casing to melt the solder inside, then dipped the wire into the casing. It worked well. 73, George NC5G -- Sent from: http://elecraft.365791.n2.nabble.com/ From k9ztv at socket.net Fri Jun 12 15:48:17 2020 From: k9ztv at socket.net (KENT TRIMBLE) Date: Fri, 12 Jun 2020 14:48:17 -0500 Subject: [Elecraft] stripping insulation In-Reply-To: <4750d016-4d61-3a84-08f8-b9a324dda685@embarqmail.com> References: <20200612191843196@smtp.email-protect.gosecure.net> <4750d016-4d61-3a84-08f8-b9a324dda685@embarqmail.com> Message-ID: And if you DO own a Hakko 808, remember it is not a soldering gun with an on/off trigger.? It is ALWAYS HOT while plugged in.? The trigger simply activates the suction mechanism. When you lay it down, lay it on something non-combustable and non-painful. 73, Kent? K9ZTV On 6/12/2020 2:31 PM, Don Wilhelm wrote: > For those who own a desoldering iron like the Hakko 808, stripping the > enamel from heat strippable wire is quick and easy - just like a > solder pot.? Melt a bit of solder on the tip and push the wire into > the tip center.? Wait a bit for 'smoke' to appear and then pull the > trigger. Presto, stripped lead. > Just clean the inside of the tip with the tip cleaning rod after a few > leads have been stripped.? If you don't do that, the tip will clog. > > 73, > Don W3FPR > -- This email has been checked for viruses by AVG. https://www.avg.com From donwilh at embarqmail.com Fri Jun 12 15:58:10 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 12 Jun 2020 15:58:10 -0400 Subject: [Elecraft] stripping insulation In-Reply-To: References: <20200612191843196@smtp.email-protect.gosecure.net> <4750d016-4d61-3a84-08f8-b9a324dda685@embarqmail.com> Message-ID: <11548f22-98cd-3306-6a28-f9690dc6f0e8@embarqmail.com> Thank you Kent for that thoughtful caution. I have a holder for mine. When I use it for wire stripping, I lay it on its side on a heat resistant surface on the workbench. No need to touch anything other than the handle and the trigger to start the suction. 73, Don W3FPR On 6/12/2020 3:48 PM, KENT TRIMBLE wrote: > And if you DO own a Hakko 808, remember it is not a soldering gun with > an on/off trigger.? It is ALWAYS HOT while plugged in.? The trigger > simply activates the suction mechanism. > > When you lay it down, lay it on something non-combustable and non-painful. > From jim at audiosystemsgroup.com Fri Jun 12 16:13:09 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 12 Jun 2020 13:13:09 -0700 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> Message-ID: <4d0e78f1-41e2-2033-d062-3f9504b8ea18@audiosystemsgroup.com> On 6/12/2020 7:02 AM, Robert G Strickland via Elecraft wrote: > Any insightful hints? I've had to strip a lot of enameled wire in the course of my common mode choke projects. Like you, I don't have the heat resources, and I don't know if the wire I'm stripping has the characteristic of the enamel melting. I've alternated between a file, sandpaper, and a knife blade. 73, Jim K9YC From n6jpa.1 at gmail.com Fri Jun 12 16:15:58 2020 From: n6jpa.1 at gmail.com (Keith N6JPA) Date: Fri, 12 Jun 2020 13:15:58 -0700 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: Years ago I came across a web site that had British intelligence agents use of CW and Q codes for their spying communications. It was very interesting to read all the Q codes meanings. On 6/12/2020 11:33 AM, Fred Jensen wrote: > There were a number of Q-signal questions on my 2T exam in 1956.? The > Z's were used primarily by the military, I don't recall any in > commercial ops.? Very common on military TTY channels in the 60's. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/12/2020 11:12 AM, Andy Durbin wrote: > From c-hawley at illinois.edu Fri Jun 12 16:57:08 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Fri, 12 Jun 2020 20:57:08 +0000 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: References: Message-ID: I use a Knipex wire stripping tweezers https://www.amazon.com/Knipex-1511120-Coated-Wire-Stripping-Tweezers/dp/B003RWS8XE I ordered the 0.5 blade which seems to be best for our small wire. Use a light pressure and this thing works great. Chuck Jack Hawley KE9UW Sent from my iPhone, cjack On Jun 12, 2020, at 11:25 AM, "QRP5W at roadrunner.com" wrote: ?The old tried and true method is to use an X-acto knife to scrape the insulation off with. Simple, not very elegant but it always works. 72 Howard Kraus, K2UD -----------------------------------------From: "Robert G Strickland via Elecraft" To: elecraft at mailman.qth.net Cc: Sent: Friday June 12 2020 10:03:58AM Subject: [Elecraft] stripping insulation from enamel wires Here's an old problem that I've never solved: how to strip the enamel insulation from wires for winding toroids. The instruction say: -dip in a solder pot which I don't have -use a soldering iron to, presumably, burn the insulation off which has never worked for me. Leaving soldering pots aside, the hot iron approach has never burned off any insulation even with tip temp's hovering around 1000F. Just doesn't happen. Maybe it's the soldering iron, maybe my method, but whichever, the enamel insulation just sits there. I end up using a file to scrape off the insulation which is tough on the wires and hard to predict when enough is enough. Any insightful hints? Thanks much. ..robert -- Robert G Strickland, PhD ABPH - KE2WY rcrgs at verizon.net.usa Syracuse, New York, USA ______________________________________________________________ Elecraft mailing list Home: Message delivered to qrp5w at roadrunner.com Links: ------ [1] http://mailman.qth.net/mmfaq.htm http://mailman.qth.net/mmfaq.htm /> Post: mailto:Elecraft at mailman.qth.net This list hosted by: References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> <4d0e78f1-41e2-2033-d062-3f9504b8ea18@audiosystemsgroup.com> Message-ID: <7B3D1863-9E16-46D3-B3C5-ADD1E8605FCB@me.com> I have suffered through the painful process of removing the enamel on the wire on just about all of the Elecraft kits..K2, K1, KX1, tuner?s etc.. I think I have made them all...just reading the comments here I was wondering why I never bought a solder pot as recommended...I checked out eBay and found several at around $30 USD,,why didn?t I do that 10 -15 elecraftyears ago and save all that frustration?? Chinese made, some 120 volt..perhaps will work for several kits...If I had it to do again.. 73, Bill-AK5X > On Jun 12, 2020, at 3:13 PM, Jim Brown wrote: > > On 6/12/2020 7:02 AM, Robert G Strickland via Elecraft wrote: >> Any insightful hints? > > I've had to strip a lot of enameled wire in the course of my common mode choke projects. Like you, I don't have the heat resources, and I don't know if the wire I'm stripping has the characteristic of the enamel melting. I've alternated between a file, sandpaper, and a knife blade. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ak5x at mac.com From linehangp at me.com Fri Jun 12 17:33:33 2020 From: linehangp at me.com (George P Linehan III) Date: Fri, 12 Jun 2020 14:33:33 -0700 Subject: [Elecraft] ISO ASSEMBLED ELECRAFT KIO2 AUX I/O MODULE Message-ID: <6224E3EA-435A-4573-B8A4-72E9ADC8643E@me.com> Just scored a used K-2 TNX & 73. PAUL. WA6YCA From jdbf918 at comcast.net Fri Jun 12 18:09:37 2020 From: jdbf918 at comcast.net (William) Date: Fri, 12 Jun 2020 18:09:37 -0400 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: References: Message-ID: <671D4739-BAD4-4A26-BB0B-71DE4349535B@comcast.net> Stripper machines actually sand/ grind off the insulation. Less chance of nicks. Burning it off is for the low temp insulation (think is called soldex) and works for commercial applications as the insulation acts like a flux. Most insulation (enamel, Formvar or polyamides) are high temp, 150-200C rating so much higher temps needed to burn it away. 200C wire can be almost white hot and still survive. Either careful scrap, don?t nick or use fine sand paper. Tin the bare copper after stripped. Bill, K1BZM Sent from my iPhone > On Jun 12, 2020, at 4:58 PM, hawley, charles j jr wrote: > > ?I use a Knipex wire stripping tweezers > > https://www.amazon.com/Knipex-1511120-Coated-Wire-Stripping-Tweezers/dp/B003RWS8XE > > I ordered the 0.5 blade which seems to be best for our small wire. > Use a light pressure and this thing works great. > > Chuck Jack Hawley > KE9UW > > Sent from my iPhone, cjack > > On Jun 12, 2020, at 11:25 AM, "QRP5W at roadrunner.com" wrote: > > ?The old tried and true method is to use an X-acto knife to scrape the > insulation off with. Simple, not very elegant but it always works. > > 72 > > Howard Kraus, K2UD > > -----------------------------------------From: "Robert G Strickland > via Elecraft" > To: elecraft at mailman.qth.net > Cc: > Sent: Friday June 12 2020 10:03:58AM > Subject: [Elecraft] stripping insulation from enamel wires > > Here's an old problem that I've never solved: how to strip the enamel > insulation from wires for winding toroids. > > The instruction say: > -dip in a solder pot which I don't have > -use a soldering iron to, presumably, burn the insulation off which > has > never worked for me. > > Leaving soldering pots aside, the hot iron approach has never burned > off > any insulation even with tip temp's hovering around 1000F. Just > doesn't > happen. Maybe it's the soldering iron, maybe my method, but > whichever, > the enamel insulation just sits there. I end up using a file to > scrape > off the insulation which is tough on the wires and hard to predict > when > enough is enough. Any insightful hints? Thanks much. > > ..robert > > -- > Robert G Strickland, PhD ABPH - KE2WY > rcrgs at verizon.net.usa > Syracuse, New York, USA > ______________________________________________________________ > Elecraft mailing list > Home: Message delivered to qrp5w at roadrunner.com > > > Links: > ------ > [1] http://mailman.qth.net/mmfaq.htm > http://mailman.qth.net/mmfaq.htm > /> Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jdbf918 at comcast.net From k6dgw at foothill.net Fri Jun 12 18:21:19 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 12 Jun 2020 15:21:19 -0700 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: <7B3D1863-9E16-46D3-B3C5-ADD1E8605FCB@me.com> References: <8200380c-b905-dcf3-f960-121bbc9c9136.ref@verizon.net> <8200380c-b905-dcf3-f960-121bbc9c9136@verizon.net> <4d0e78f1-41e2-2033-d062-3f9504b8ea18@audiosystemsgroup.com> <7B3D1863-9E16-46D3-B3C5-ADD1E8605FCB@me.com> Message-ID: Ummm ... solder pot not required.? All of the Elecraft kits I've built, including my K2, used heat-strippable wire for the toroids.? Small blob of solder on the iron, stick end of wire into it, wait a few seconds, when insulation bubbles and smokes, insert wire into blob slowly as far as you need to.? End of wire is not only stripped, it's now tinned too. I used a separate larger iron I had that happened to have a flat-ish end which held a good solder blob but occasionally did it with my Weller Solder Station I was using for the actual soldering.? I wiped it off every now and then when the insulation and rosin had accumulated.? I did not find it frustrating at all. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/12/2020 2:01 PM, William Hammond via Elecraft wrote: > I have suffered through the painful process of removing the enamel on the wire on just about all of the Elecraft kits..K2, K1, KX1, tuner?s etc.. I think I have made them all...just reading the comments here I was wondering why I never bought a solder pot as recommended...I checked out eBay and found several at around $30 USD,,why didn?t I do that 10 -15 elecraftyears ago and save all that frustration?? Chinese made, some 120 volt..perhaps will work for several kits...If I had it to do again.. > > 73, Bill-AK5X > From k3ndm at comcast.net Fri Jun 12 19:48:23 2020 From: k3ndm at comcast.net (Barry) Date: Fri, 12 Jun 2020 23:48:23 +0000 Subject: [Elecraft] K3 on motorboat. In-Reply-To: <675ea6f1-66bf-ade7-ce82-94196c4e7838@embarqmail.com> References: <0f4876fd-94d9-bc5e-2cf1-7c8f8b11db53@audiosystemsgroup.com> <675ea6f1-66bf-ade7-ce82-94196c4e7838@embarqmail.com> Message-ID: Don, I never got the chance to work as a scientist. It might have been fun. I did enjoy doing designs to products, but there were times when I was ready to change career field. :-\ 73, Barry K3NDM ------ Original Message ------ From: "Don Wilhelm" To: "Barry" ; elecraft at mailman.qth.net Sent: 6/10/2020 9:46:03 PM Subject: Re: [Elecraft] K3 on motorboat. >Barry, > >Sometimes we have to put on the Scientists hat, but when the rubber meets the road and we have to come up with a product, we have to put on the design engineers hat and say that how much compromise is required to meet 1) customer demands, 2) budget constraints, 3) speed to first customer shipment, 4) adherence to the initial specifications that have been published. >If you can meet 2 of the 4 above, you have done OK, 3 is better, but takes more effort. > >I worked both as a design engineer and as a Product Assurance Test Team Leader whose efforts were to test the product to conform to the specifications or fix it - an alternative was to change the specifications, which usually did not sit well with me, but was reality. > >73, >W3FPR > >On 6/10/2020 7:55 PM, Barry wrote: >>Don, >> I worked as a design engineer and then transitioned to system engineering/project management. In those latter days, I would receive a requirement set from which I needed to make sense. I also had budgetary issues that were built in, more requirements than money. And, there might have been other conflicts. So, I know what e had to do, maximize the number of requirements satisfied with in the set. >> >> Yes. We engineers were pretty well trained, but when making decisions on what had to go or be included it wasn't always a 2+2 = 4 which is precise. Mathematicians are precise and there may be only answer to the equation, but that wasn't the world I was living in; I could have many different solutions based on the requirements. This is the point I was trying to make. >> > -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From prpntfmr at gmail.com Fri Jun 12 20:25:36 2020 From: prpntfmr at gmail.com (Frank C Richards) Date: Fri, 12 Jun 2020 20:25:36 -0400 Subject: [Elecraft] Stripping enamel from wire Message-ID: Look at this tool. Knipex Wire Stripping Tweezers #1511120 I have not used them, but am thinking about getting a pair. They are available on Amazon or Chads Toolbox.com. Chads has replacement blades in different sizes.I think it comes with a .6mm blade but a .5mm blade #1519005 is available. With those two blades you should be able to strip from 22ga to 28ga wire. Good Luck Frank- KB4VU . From vk3zmf at outlook.com Sat Jun 13 00:17:44 2020 From: vk3zmf at outlook.com (Mark Forsyth) Date: Sat, 13 Jun 2020 04:17:44 +0000 Subject: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux In-Reply-To: References: Message-ID: Hi, Elecraft have a handy little utility called RxSbNull.exe which does the whole process. All you need is an up to date KX3, an up to date XG3, a Windows computer and the utility. It works like a charm. Turn the radio volume down before you start it though otherwise it?ll annoy the hell out of you. Cheers Mark Forsyth http://jandmf.com VK3KW > On 12 Jun 2020, at 11:36 pm, Grant Youngman wrote: > > ?Elecraft Tech Support seems (understandably) a bit slow to respond at this point. This is a repeat of a question I asked a few days ago. Maybe someone else will see it and have some insight (?). > > I have redone the opposite sideband null procedure in my KX3 (#8342) with KXFL3 filter board, using both the 2013 per-band null procedure, and the 2015 KXFL3 installation/calibration instructions. The procedures are essentially the same, with a minor difference in RIT setting, and the fact that the KXFL3 installation manual calls this out only on 20M rather than on each band individually. > > With my XG3 as a signal source, I get an excellent opposite sideband null using either FL1 or FL2 bandwidth settings on all bands. With narrow bandwidth and FL3 switched in, the null is very broad and shallow, and the opposite sideband is reduced only on the order of 10dB (+/-) rather than the very deep nulls (60+ dB) obtainable with FL1/FL2. As a result, the opposite sideband remains clearly audible when tuning across a signal ? say CW at 500 Hz bandwidth, etc. > > If anyone else out there has done either of these procedures, did you get as deep a null with FL3 as with FL1/FL2? I?m trying to determine if this is normal, or if there's an issue in the radio, possibly with my KXFL3 board. > > Thanks ? Grant NQ5T > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to vk3zmf at outlook.com From barrylazar2 at gmail.com Sat Jun 13 00:41:31 2020 From: barrylazar2 at gmail.com (Barry) Date: Sat, 13 Jun 2020 04:41:31 +0000 Subject: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux In-Reply-To: References: Message-ID: Mark, Where did you find the utility? I just search the web and the Elecraft site for the utility, but it never showed up. 73, Barry K3NDM ------ Original Message ------ From: "Mark Forsyth" To: "Grant Youngman" Cc: "Elecraft Refl" Sent: 6/13/2020 12:17:44 AM Subject: Re: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux >Hi, >Elecraft have a handy little utility called RxSbNull.exe which does the whole process. All you need is an up to date KX3, an up to date XG3, a Windows computer and the utility. It works like a charm. Turn the radio volume down before you start it though otherwise it?ll annoy the hell out of you. > >Cheers >Mark Forsyth >http://jandmf.com >VK3KW > >> On 12 Jun 2020, at 11:36 pm, Grant Youngman wrote: >> >> ?Elecraft Tech Support seems (understandably) a bit slow to respond at this point. This is a repeat of a question I asked a few days ago. Maybe someone else will see it and have some insight (?). >> >> I have redone the opposite sideband null procedure in my KX3 (#8342) with KXFL3 filter board, using both the 2013 per-band null procedure, and the 2015 KXFL3 installation/calibration instructions. The procedures are essentially the same, with a minor difference in RIT setting, and the fact that the KXFL3 installation manual calls this out only on 20M rather than on each band individually. >> >> With my XG3 as a signal source, I get an excellent opposite sideband null using either FL1 or FL2 bandwidth settings on all bands. With narrow bandwidth and FL3 switched in, the null is very broad and shallow, and the opposite sideband is reduced only on the order of 10dB (+/-) rather than the very deep nulls (60+ dB) obtainable with FL1/FL2. As a result, the opposite sideband remains clearly audible when tuning across a signal ? say CW at 500 Hz bandwidth, etc. >> >> If anyone else out there has done either of these procedures, did you get as deep a null with FL3 as with FL1/FL2? I?m trying to determine if this is normal, or if there's an issue in the radio, possibly with my KXFL3 board. >> >> Thanks ? Grant NQ5T >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to vk3zmf at outlook.com >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to barrylazar2 at gmail.com -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From k7sss at aol.com Sat Jun 13 02:09:52 2020 From: k7sss at aol.com (k7sss at aol.com) Date: Sat, 13 Jun 2020 06:09:52 +0000 (UTC) Subject: [Elecraft] KX2 FW update References: <191977871.167208.1592028592688.ref@mail.yahoo.com> Message-ID: <191977871.167208.1592028592688@mail.yahoo.com> HI I just noticed a firmware update for the KX2. 3.00/152. It's on the Elecraft firmware KX2 page. 73Jim Hk7sss From djwilcox01 at yahoo.com Sat Jun 13 05:48:28 2020 From: djwilcox01 at yahoo.com (David Wilcox) Date: Sat, 13 Jun 2020 05:48:28 -0400 Subject: [Elecraft] stripping insulation from enamel wires In-Reply-To: References: Message-ID: I have also used an electric solder sucker like this one: https://www.ebay.com/itm/362348659918 You plug the end with the bulb and remove the nozzle. Prop it with the opening for the nozzle pointing up and fill with fresh solder. There you have a mini solder pot. I bought mine for $10 or $15 back in the day and it works too. I still like my Knipex tweezers best but this is fast if you are doing g a bunch of toroids. I would still use the Knipex tweezers to scrape the ash off if any is left. Change the solder in the pot frequently. The wire comes out tinned too, an added benefit. Dave K8WPE David J. Wilcox K8WPE?s iPad > On Jun 12, 2020, at 6:25 PM, Fred Jensen wrote: > > ?Ummm ... solder pot not required. All of the Elecraft kits I've built, including my K2, used heat-strippable wire for the toroids. Small blob of solder on the iron, stick end of wire into it, wait a few seconds, when insulation bubbles and smokes, insert wire into blob slowly as far as you need to. End of wire is not only stripped, it's now tinned too. > > I used a separate larger iron I had that happened to have a flat-ish end which held a good solder blob but occasionally did it with my Weller Solder Station I was using for the actual soldering. I wiped it off every now and then when the insulation and rosin had accumulated. I did not find it frustrating at all. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > >> On 6/12/2020 2:01 PM, William Hammond via Elecraft wrote: >> I have suffered through the painful process of removing the enamel on the wire on just about all of the Elecraft kits..K2, K1, KX1, tuner?s etc.. I think I have made them all...just reading the comments here I was wondering why I never bought a solder pot as recommended...I checked out eBay and found several at around $30 USD,,why didn?t I do that 10 -15 elecraftyears ago and save all that frustration?? Chinese made, some 120 volt..perhaps will work for several kits...If I had it to do again.. >> >> 73, Bill-AK5X >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to djwilcox01 at yahoo.com From bobdehaney at gmx.net Sat Jun 13 06:08:27 2020 From: bobdehaney at gmx.net (Bob DeHaney) Date: Sat, 13 Jun 2020 12:08:27 +0200 Subject: [Elecraft] RxSbNull.exe Message-ID: <000001d6416a$9557daf0$c00790d0$@gmx.net> Where can I find the subject utility? A Google search leads nowhere. Vy 73 de Bob DJ0RD/WU5T From rich at wc3t.us Sat Jun 13 08:28:44 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Sat, 13 Jun 2020 08:28:44 -0400 Subject: [Elecraft] RxSbNull.exe In-Reply-To: <000001d6416a$9557daf0$c00790d0$@gmx.net> References: <000001d6416a$9557daf0$c00790d0$@gmx.net> Message-ID: https://kx3-blog.de/?p=200 On Sat, Jun 13, 2020 at 06:08 Bob DeHaney wrote: > Where can I find the subject utility? A Google search leads nowhere. > > > > Vy 73 de Bob DJ0RD/WU5T > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rich at wc3t.us > -- 72, Rich Hurd / WC3T / DMR: 3142737 Northampton County RACES, EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 (40?45.68' N 75?17.33' W) Grid: *FN20is* From len at ka7ftp.com Sat Jun 13 09:10:00 2020 From: len at ka7ftp.com (len at ka7ftp.com) Date: Sat, 13 Jun 2020 07:10:00 -0600 Subject: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux In-Reply-To: References: Message-ID: <199901d64183$f225c0d0$d6714270$@ka7ftp.com> By "up to date" I assume you mean firmware? -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mark Forsyth Sent: Friday, June 12, 2020 10:18 PM To: Grant Youngman Cc: Elecraft Refl Subject: Re: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux Hi, Elecraft have a handy little utility called RxSbNull.exe which does the whole process. All you need is an up to date KX3, an up to date XG3, a Windows computer and the utility. It works like a charm. Turn the radio volume down before you start it though otherwise it?ll annoy the hell out of you. Cheers Mark Forsyth http://jandmf.com VK3KW > On 12 Jun 2020, at 11:36 pm, Grant Youngman wrote: > > ?Elecraft Tech Support seems (understandably) a bit slow to respond at this point. This is a repeat of a question I asked a few days ago. Maybe someone else will see it and have some insight (?). > > I have redone the opposite sideband null procedure in my KX3 (#8342) with KXFL3 filter board, using both the 2013 per-band null procedure, and the 2015 KXFL3 installation/calibration instructions. The procedures are essentially the same, with a minor difference in RIT setting, and the fact that the KXFL3 installation manual calls this out only on 20M rather than on each band individually. > > With my XG3 as a signal source, I get an excellent opposite sideband null using either FL1 or FL2 bandwidth settings on all bands. With narrow bandwidth and FL3 switched in, the null is very broad and shallow, and the opposite sideband is reduced only on the order of 10dB (+/-) rather than the very deep nulls (60+ dB) obtainable with FL1/FL2. As a result, the opposite sideband remains clearly audible when tuning across a signal ? say CW at 500 Hz bandwidth, etc. > > If anyone else out there has done either of these procedures, did you get as deep a null with FL3 as with FL1/FL2? I?m trying to determine if this is normal, or if there's an issue in the radio, possibly with my KXFL3 board. > > Thanks ? Grant NQ5T > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > vk3zmf at outlook.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to len at ka7ftp.com From robert at kalkwarf.com Sat Jun 13 10:11:51 2020 From: robert at kalkwarf.com (Robert Kalkwarf) Date: Sat, 13 Jun 2020 07:11:51 -0700 Subject: [Elecraft] KX1 80 40 30 20 w/ATU for Sale Message-ID: <63bf1c17-bbde-409f-ad7a-8e9ed7474ef6@www.fastmail.com> Interested ? Email for photos and price. From mbaileycrna at gmail.com Sat Jun 13 10:12:55 2020 From: mbaileycrna at gmail.com (Morgan Bailey) Date: Sat, 13 Jun 2020 09:12:55 -0500 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: <1431851952.2305633.1591970644847@mail.yahoo.com> References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> Message-ID: https://www.amazon.com/gp/product/B075PMWCKS/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1 These are great monitors. We use them in the hospital. RF pretty much immune. No RFI generation and great for reading and Logging programs. Plus, They come with 3 sets of cables. HDMI, VGA, Display port. I have 2 of these mounted on this: https://www.amazon.com/gp/product/B009S750LA/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1 . Then I took 2 band clamps to the pole and mounted this: https://www.amazon.com/Lenovo-ThinkCentre-Desktop-i5-6500T-Windows/dp/B07QGLC4FW/ref=pd_rhf_ee_p_img_4?_encoding=UTF8&psc=1&refRID=BPF1Q6NJ43K17FSHV78W . It has 6 usb ports, 3 type 2 and 3 type 3. More than enough for an SO2R set up. 2 for radios, 1 for controller, 2 for separate keyboards and 1 for mouse. No Usb break out boxes. Clean Setup. The Lenovo is hospital approved for high rf environments. It is totally a metal box and works great for logging, web streaming/browsing and light gaming, Guild Wars, EQ, WoW. It is my set up. Best of luck in your choices. 73 Morgan NJ8M On Fri, Jun 12, 2020 at 9:06 AM krug261--- via Elecraft < elecraft at mailman.qth.net> wrote: > I realize this subject has come up several times in the past; I've been > through the archives. However, computer equipment changes all the time. I > am in the market for a new "quiet" monitor for the station. Are there > monitors people would happily recommend? Conversely, are there > brands/models you would keep away from? Or even a type of monitor you would > not recommend for a shack? > > Thanks and 73, Bob, KA2TQV > > KX3, KXPA100, PX3 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mbaileycrna at gmail.com > From ghyoungman at gmail.com Sat Jun 13 10:35:39 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sat, 13 Jun 2020 10:35:39 -0400 Subject: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux In-Reply-To: References: Message-ID: <79FBC4EB-C930-49E7-9B18-4737D7F454B2@gmail.com> If you obtained this utility from Elecraft and used it, then you've done the opposite sideband null? Did you observe any difference in the nulls at FL3 bandwidths than you got with FL1/FL2 bandwidths? The utility is probably one of many bits of automation ELecraft uses internally for test/manufacture that isn?t supported for customer use. If I were going to run per-band nulling for 1000 radios it would be essential. For one ? the process isn?t all that bad :-) Grant NQ5T > On Jun 13, 2020, at 12:17 AM, Mark Forsyth wrote: > > Hi, > Elecraft have a handy little utility called RxSbNull.exe which does the whole process. All you need is an up to date KX3, an up to date XG3, a Windows computer and the utility. It works like a charm. Turn the radio volume down before you start it though otherwise it?ll annoy the hell out of you. > > Cheers > Mark Forsyth > http://jandmf.com > VK3KW > From vk3zmf at outlook.com Sat Jun 13 10:47:32 2020 From: vk3zmf at outlook.com (Mark Forsyth) Date: Sat, 13 Jun 2020 14:47:32 +0000 Subject: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux In-Reply-To: <199901d64183$f225c0d0$d6714270$@ka7ftp.com> References: , <199901d64183$f225c0d0$d6714270$@ka7ftp.com> Message-ID: Yep. That?s exactly what I mean ...:-) Cheers Mark Forsyth http://jandmf.com > On 13 Jun 2020, at 11:11 pm, "len at ka7ftp.com" wrote: > > ?By "up to date" I assume you mean firmware? > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mark Forsyth > Sent: Friday, June 12, 2020 10:18 PM > To: Grant Youngman > Cc: Elecraft Refl > Subject: Re: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux > > Hi, > Elecraft have a handy little utility called RxSbNull.exe which does the whole process. All you need is an up to date KX3, an up to date XG3, a Windows computer and the utility. It works like a charm. Turn the radio volume down before you start it though otherwise it?ll annoy the hell out of you. > > Cheers > Mark Forsyth > http://jandmf.com > VK3KW > >> On 12 Jun 2020, at 11:36 pm, Grant Youngman wrote: >> >> ?Elecraft Tech Support seems (understandably) a bit slow to respond at this point. This is a repeat of a question I asked a few days ago. Maybe someone else will see it and have some insight (?). >> >> I have redone the opposite sideband null procedure in my KX3 (#8342) with KXFL3 filter board, using both the 2013 per-band null procedure, and the 2015 KXFL3 installation/calibration instructions. The procedures are essentially the same, with a minor difference in RIT setting, and the fact that the KXFL3 installation manual calls this out only on 20M rather than on each band individually. >> >> With my XG3 as a signal source, I get an excellent opposite sideband null using either FL1 or FL2 bandwidth settings on all bands. With narrow bandwidth and FL3 switched in, the null is very broad and shallow, and the opposite sideband is reduced only on the order of 10dB (+/-) rather than the very deep nulls (60+ dB) obtainable with FL1/FL2. As a result, the opposite sideband remains clearly audible when tuning across a signal ? say CW at 500 Hz bandwidth, etc. >> >> If anyone else out there has done either of these procedures, did you get as deep a null with FL3 as with FL1/FL2? I?m trying to determine if this is normal, or if there's an issue in the radio, possibly with my KXFL3 board. >> >> Thanks ? Grant NQ5T >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> vk3zmf at outlook.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to len at ka7ftp.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to vk3zmf at outlook.com From rick.nk7i at gmail.com Sat Jun 13 11:01:49 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Sat, 13 Jun 2020 08:01:49 -0700 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> Message-ID: <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall behind the operating desk.? If your computer can manage 4K video (or even HD), LOADS of space to see (don't need my readers) and spread things out and being a smart TV, it has other features for the shack but I added a Dish Joey too. I've been using full QRO, all bands, no issues in receiving, no artifacts on the TV and it's cheaper than a monitor plus it has speakers so the desk has less on it. The new shack is still coming together, but it's looking better each upgrade.? (I'd send a pic but I don't think qth.net allows that, so I'll update my QRZ page within a day or two.) 73, Rick NK7I On 6/13/2020 7:12 AM, Morgan Bailey wrote: > https://www.amazon.com/gp/product/B075PMWCKS/ref=ppx_yo_dt_b_asin_title_o08_s00?ie=UTF8&psc=1 > These > are great monitors. We use them in the hospital. RF pretty much immune. No > RFI generation and great for reading and Logging programs. Plus, They come > with 3 sets of cables. HDMI, VGA, Display port. I have 2 of these mounted > on this: > https://www.amazon.com/gp/product/B009S750LA/ref=ppx_yo_dt_b_asin_title_o07_s00?ie=UTF8&psc=1 > . > Then I took 2 band clamps to the pole and mounted this: > https://www.amazon.com/Lenovo-ThinkCentre-Desktop-i5-6500T-Windows/dp/B07QGLC4FW/ref=pd_rhf_ee_p_img_4?_encoding=UTF8&psc=1&refRID=BPF1Q6NJ43K17FSHV78W > . It has 6 usb ports, 3 type 2 and 3 type 3. More than enough for an SO2R > set up. 2 for radios, 1 for controller, 2 for separate keyboards and 1 for > mouse. No Usb break out boxes. Clean Setup. The Lenovo is hospital approved > for high rf environments. It is totally a metal box and works great for > logging, web streaming/browsing and light gaming, Guild Wars, EQ, WoW. It > is my set up. > > Best of luck in your choices. > > 73 > Morgan NJ8M > > > > On Fri, Jun 12, 2020 at 9:06 AM krug261--- via Elecraft < > elecraft at mailman.qth.net> wrote: > >> I realize this subject has come up several times in the past; I've been >> through the archives. However, computer equipment changes all the time. I >> am in the market for a new "quiet" monitor for the station. Are there >> monitors people would happily recommend? Conversely, are there >> brands/models you would keep away from? Or even a type of monitor you would >> not recommend for a shack? >> >> Thanks and 73, Bob, KA2TQV >> >> KX3, KXPA100, PX3 >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to mbaileycrna at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rick.nk7i at gmail.com From ghyoungman at gmail.com Sat Jun 13 11:02:25 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sat, 13 Jun 2020 11:02:25 -0400 Subject: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux In-Reply-To: References: <199901d64183$f225c0d0$d6714270$@ka7ftp.com> Message-ID: So given that this is on a German blog site, I?m going to guess that it?s third party and not straight from an Elecraft test bench (?). Does it report out null depth found for each band/bandwidth combination or just run through them presuming everything else is hunky dory. Grant NQ5T > On Jun 13, 2020, at 10:47 AM, Mark Forsyth wrote: > > Yep. That?s exactly what I mean ...:-) > > Cheers > Mark Forsyth > http://jandmf.com > >> On 13 Jun 2020, at 11:11 pm, "len at ka7ftp.com" wrote: >> >> ?By "up to date" I assume you mean firmware? >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mark Forsyth >> Sent: Friday, June 12, 2020 10:18 PM >> To: Grant Youngman >> Cc: Elecraft Refl >> Subject: Re: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux >> >> Hi, >> Elecraft have a handy little utility called RxSbNull.exe which does the whole process. All you need is an up to date KX3, an up to date XG3, a Windows computer and the utility. It works like a charm. Turn the radio volume down before you start it though otherwise it?ll annoy the hell out of you. >> From n0jrn1 at gmail.com Sat Jun 13 11:14:46 2020 From: n0jrn1 at gmail.com (Jerry Ford) Date: Sat, 13 Jun 2020 10:14:46 -0500 Subject: [Elecraft] KX3 volume control inop Message-ID: Good morning all: I'm having a rough day today and I need some advise. Got my KX3 out this morning to work WES and found the volume control is not working. My volume is maxed at 46 on the display and I can not turn it down. Pushing the knob does change it from AF to RF and holding it down does change to monitor. Volume dose nothing. The radio has been stored for some time inside a Pelican case. I hooked it to my power supply with 13.8 volts applied and it made no difference. I did remove all power long enough to replace the internal batteries. they were showing low charge ( 7.6 volts ) when I took it out of the case. Just curious if I've hit a button or something that is causing this behavior. I'm not finding anything in the manual that describes this issue. Didn't find anything on the internet relative to it. SO, thought I would ask you folks. Anyone run into this before? How do I correct it ?? thanks and 73: Jerry N0JRN From robert at kalkwarf.com Sat Jun 13 11:30:56 2020 From: robert at kalkwarf.com (Robert Kalkwarf) Date: Sat, 13 Jun 2020 08:30:56 -0700 Subject: [Elecraft] KX1 84 40 30 20 sold Message-ID: <5f26309f-79cd-49c5-a180-4ed0b02b63bc@www.fastmail.com> Hi, KX1 has been spoken for, thanks all. From k7im at icloud.com Sat Jun 13 11:35:59 2020 From: k7im at icloud.com (Michael K Bottles) Date: Sat, 13 Jun 2020 08:35:59 -0700 Subject: [Elecraft] K-3 Pwr/Cmp/Mon button problem Message-ID: <30707C77-2E8D-4531-9CE9-CB3A54FDDC19@icloud.com> I have a older Factory built K-3 (s/n 3530) The Power/Compressor/Monitor control is touchy. It usually works if I turn it very slowly. Turning it at normal speed causes it to skip up and down in value. This is true for all three of the options (Pwr/Cmp/Moni). Is this a known problem? How hard is it to change out the control assuming I can get another one from Elecraft? I thought I would ask here before I bother Elecraft Service with the problem in case it is an easy known fix. Thanks, Kim - K7IM Sent from my iPad From donwilh at embarqmail.com Sat Jun 13 11:41:28 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 13 Jun 2020 11:41:28 -0400 Subject: [Elecraft] KX3 volume control inop In-Reply-To: References: Message-ID: <6456f91f-e829-76e9-4ba4-f4163e8f67af@embarqmail.com> Jerry, Can you change the monitor/sidetone level? How about the RF Gain? If not, check the ribbon cable inside - unplug and reseat. If still no solution, it is possible you have a bad encoder. 73, Don W3FPR On 6/13/2020 11:14 AM, Jerry Ford wrote: > Good morning all: > > I'm having a rough day today and I need some advise. > > Got my KX3 out this morning to work WES and found > the volume control is not working. My volume is maxed > at 46 on the display and I can not turn it down. Pushing > the knob does change it from AF to RF and holding it > down does change to monitor. Volume dose nothing. > > The radio has been stored for some time inside a Pelican > case. I hooked it to my power supply with 13.8 volts applied > and it made no difference. I did remove all power long > enough to replace the internal batteries. they were showing > low charge ( 7.6 volts ) when I took it out of the case. > > Just curious if I've hit a button or something that is causing > this behavior. I'm not finding anything in the manual that > describes this issue. Didn't find anything on the internet > relative to it. SO, thought I would ask you folks. > From marklgoldberg at gmail.com Sat Jun 13 11:54:27 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Sat, 13 Jun 2020 08:54:27 -0700 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> Message-ID: On Sat, Jun 13, 2020, 8:03 AM Rick Bates, NK7I wrote: > I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall > behind the operating desk. If your computer can manage 4K video (or > even HD), LOADS of space to see (don't need my readers) I also installed a slightly smaller (43") LG 4K monitor from Costco on the wall. No EMC issues I can detect. See my qrz.com page, part way down. Lots of room for Ham Radio applications. 73, Mark W7MLG From marklgoldberg at gmail.com Sat Jun 13 11:58:11 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Sat, 13 Jun 2020 08:58:11 -0700 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> Message-ID: The noise shown on the spectrum is not from the monitor. No change in or off. 73, Mark W7MLG On Sat, Jun 13, 2020, 8:54 AM Mark Goldberg wrote: > On Sat, Jun 13, 2020, 8:03 AM Rick Bates, NK7I > wrote: > >> I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall >> behind the operating desk. If your computer can manage 4K video (or >> even HD), LOADS of space to see (don't need my readers) > > > I also installed a slightly smaller (43") LG 4K monitor from Costco on the > wall. No EMC issues I can detect. > > See my qrz.com page, part way down. Lots of room for Ham Radio > applications. > > 73, > > Mark > W7MLG > From gthornton at thorntonmostullaw.com Sat Jun 13 12:00:03 2020 From: gthornton at thorntonmostullaw.com (George Thornton) Date: Sat, 13 Jun 2020 16:00:03 +0000 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> Message-ID: I have a portable monitor made by AOC. The stand folds into the back for convenient storage and transport. Connects to computer via USB. Very convenient and good for tight spaces. -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Mark Goldberg Sent: Saturday, June 13, 2020 8:54 AM To: Elecraft Mailing List Subject: Re: [Elecraft] Computer Monitor Recommendations On Sat, Jun 13, 2020, 8:03 AM Rick Bates, NK7I wrote: > I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall > behind the operating desk. If your computer can manage 4K video (or > even HD), LOADS of space to see (don't need my readers) I also installed a slightly smaller (43") LG 4K monitor from Costco on the wall. No EMC issues I can detect. See my qrz.com page, part way down. Lots of room for Ham Radio applications. 73, Mark W7MLG ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to gthornton at thorntonmostullaw.com From k2asp at kanafi.org Sat Jun 13 12:13:28 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 13 Jun 2020 09:13:28 -0700 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> Message-ID: On 6/13/2020 8:54 AM, Mark Goldberg wrote: >> I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall >> behind the operating desk. If your computer can manage 4K video (or >> even HD), LOADS of space to see (don't need my readers) > > I also installed a slightly smaller (43") LG 4K monitor from Costco on the > wall. No EMC issues I can detect. I recently had to replace my 6-year old failed monitor and I settled on a 27" LG HD monitor (the largest size that could fit on the desk) because I didn't need 4K. $159 at Costco. It was the next-to-last on the shelf. The guy there said that large screen monitors were going very fast because the work-at-home folks were realizing that a 15" laptop screen just doesn't cut it for all-day use. No EMI that I can detect by on-off testing (there's plenty from other nearby sources). 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From dick.w7zr at gmail.com Sat Jun 13 12:14:51 2020 From: dick.w7zr at gmail.com (Richard Zalewski) Date: Sat, 13 Jun 2020 09:14:51 -0700 Subject: [Elecraft] kpa1500-ic-7300 FT8 Message-ID: Noticing something different on 6m. When the amp keys for a moment the SWR indicated on the KPA is 2:1 but then a second later it is 1.4:1. Seems only happening on 6m. Richard *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU, J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV *Be joyful in hope, patient in affliction, faithful in prayer* From archerjon30 at gmail.com Sat Jun 13 12:28:59 2020 From: archerjon30 at gmail.com (Jonathan Archer) Date: Sat, 13 Jun 2020 12:28:59 -0400 Subject: [Elecraft] (no subject) Message-ID: From donwilh at embarqmail.com Sat Jun 13 13:04:07 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 13 Jun 2020 13:04:07 -0400 Subject: [Elecraft] K-3 Pwr/Cmp/Mon button problem In-Reply-To: <30707C77-2E8D-4531-9CE9-CB3A54FDDC19@icloud.com> References: <30707C77-2E8D-4531-9CE9-CB3A54FDDC19@icloud.com> Message-ID: <3bd88d22-8c92-1d7c-bd30-7b937189e125@embarqmail.com> Kim, That sounds like a bad encoder. Replacement is the only real fix. It is tough to desolder the tabs, but otherwise not too hard. 73, Don W3FPR On 6/13/2020 11:35 AM, Michael K Bottles via Elecraft wrote: > I have a older Factory built K-3 (s/n 3530) > > The Power/Compressor/Monitor control is touchy. > > It usually works if I turn it very slowly. Turning it at normal speed causes it to skip up and down in value. This is true for all three of the options (Pwr/Cmp/Moni). > > Is this a known problem? How hard is it to change out the control assuming I can get another one from Elecraft? > > I thought I would ask here before I bother Elecraft Service with the problem in case it is an easy known fix. > > Thanks, > Kim - K7IM > > Sent from my iPad > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donwilh at embarqmail.com > From jim at audiosystemsgroup.com Sat Jun 13 14:20:31 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sat, 13 Jun 2020 11:20:31 -0700 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> Message-ID: On 6/13/2020 9:13 AM, Phil Kane wrote: > No EMI that I can > detect by on-off testing (there's plenty from other nearby sources). Phil, Did you unplug the wall wart (or the monitor) from the wall? That PSU, whether external or built into the monitor, usually a major noise source. ALWAYS, when offering (or evaluating) advice about whether some device is noisy, consider the possibility that the noise it produces is covered by noise from other sources in your home and in your neighbors's homes. Also consider proximity to ANTENNAS, not to the shack. I work a lot of FT8 on 160M to work DX and on 6M to work new grids. The signal report is the signal to noise ratio. I run legal limit to very good antennas on both bands, and I regularly receive reports that are at least 10 dB worse than I give, telling me that most hams have horrendous noise levels. 73, Jim K9YC From k2asp at kanafi.org Sat Jun 13 14:50:54 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 13 Jun 2020 11:50:54 -0700 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> Message-ID: <529d58e2-e6df-832c-f593-b88abf759ec6@kanafi.org> On 6/13/2020 11:20 AM, Jim Brown wrote: > > Did you unplug the? wall wart (or the monitor) from the wall? That PSU, > whether external or built into the monitor, usually a major noise source. In a two-word answer from an experienced RFI chaser -- of course! :) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From Lyn at LNAINC.com Sat Jun 13 14:58:07 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Sat, 13 Jun 2020 13:58:07 -0500 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com> <1431851952.2305633.1591970644847@mail.yahoo.com> <6344bd0a-13a4-c07a-482c-3d33d5c345dc@gmail.com> Message-ID: <045301d641b4$93d35e30$bb7a1a90$@LNAINC.com> The main computer in my shack is an HP Z800 Dual Xeon workstation with 2 Nvidia Quadra cards. Originally I had it set up with 2 HP ZR2440W 24" screens at keyboard level, and 1 Viewsonic 28" screen above (on a stand). The Viewsonic died a couple years ago, and I replaced it with an LG 49" TV (4K UHD - model UJ6300). I split the 49" up into 4 logical 2k 24" windows, so I now have the equivalent of 6 x 24" screens. I can use it for multiple purposes, including watching sports on the 49" screen (remember the days when we had sports??). The only issue I have is that one (just one ...) of the 2 HP ZR2440W radiates a spike on 17 meters. Not too serious, but rather weird. On my 2 other computers, I am using 24" screens from "V7" a house brand of Ingram-Micro. No problems with either of them. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Phil Kane Sent: Saturday, June 13, 2020 11:13 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Computer Monitor Recommendations On 6/13/2020 8:54 AM, Mark Goldberg wrote: >> I went with a 50" 4K TV (LG from Costco ~US$300) mounted to the wall >> behind the operating desk. If your computer can manage 4K video (or >> even HD), LOADS of space to see (don't need my readers) > > I also installed a slightly smaller (43") LG 4K monitor from Costco on the > wall. No EMC issues I can detect. I recently had to replace my 6-year old failed monitor and I settled on a 27" LG HD monitor (the largest size that could fit on the desk) because I didn't need 4K. $159 at Costco. It was the next-to-last on the shelf. The guy there said that large screen monitors were going very fast because the work-at-home folks were realizing that a 15" laptop screen just doesn't cut it for all-day use. No EMI that I can detect by on-off testing (there's plenty from other nearby sources). 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From Lyn at LNAINC.com Sat Jun 13 15:10:55 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Sat, 13 Jun 2020 14:10:55 -0500 Subject: [Elecraft] kpa1500-ic-7300 FT8 In-Reply-To: References: Message-ID: <045401d641b6$5d551a40$17ff4ec0$@LNAINC.com> Is the ATU doing its job? 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Richard Zalewski Sent: Saturday, June 13, 2020 11:15 AM To: Elecraft Reflector Subject: [Elecraft] kpa1500-ic-7300 FT8 Noticing something different on 6m. When the amp keys for a moment the SWR indicated on the KPA is 2:1 but then a second later it is 1.4:1. Seems only happening on 6m. Richard *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU, J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV *Be joyful in hope, patient in affliction, faithful in prayer* ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From kevinr at coho.net Sat Jun 13 15:11:25 2020 From: kevinr at coho.net (kevinr) Date: Sat, 13 Jun 2020 12:11:25 -0700 Subject: [Elecraft] Data protection and recovery techniques Message-ID: <41ac4a23-5957-ca26-d13d-2dd361a6c491@coho.net> Good Afternoon, Recently there was discussion on backup strategies.? Here are my current methods. I use three data protection strategies. The first is possible because of the way I design my computers. I use a small solid state drive for the OS and for all of the applications I use. Once everything is installed and all the settings massaged I make an ISO image of the drive and save it on my server. Then I clone a drive from that ISO and put it into a drawer. If I ever have a major OS crash I can pull that drive out of storage, install it into the box, and be running again in a few minutes. The second method I use for data protection requires a versioning application. I use Subversion. When a set of folders with their attendant files is ready I create a Subversion repository to hold them. This repository is a database of files. Files can be of any type I have tried: C code, text files, CAD files, SPICE files, circuit board layouts, bills of material, etc. While I am working I commit my changes many times a day. If I need to recover a file from a week ago I can type svn update XXX and roll back my file system to when the XXX snapshot was current. I can also check out the repository to another computer and work on it. The first thing I do, when I start working on any of my computers, is type svn update. This pulls any changes from the repository and brings my files up to date. Then I write code, prose, or CAD committing the changes as I work. By typing svn update I bring each of my laptops and work computers up to the same revision number. The third method of data protection is more common. I make copies of my files. I have found backup schemes which use compression or encryption get in my way. When I want to recover something it is not normally the entire system; I only need a small subset of the whole. So my backups consist of exact copies of files in the folder structure I built. If I need to, I can move entire chunks of the file hierarchy to recover from a major crash. For the most sensitive data I make a copy on the same computer but on a different drive and again on a separate machine. The tool I use for this third method of data protection is a command built into Linux but available to Windows and Mac users too. Rsync lets me ?push? data from where it is to a remote location or ?pull? from a remote location to a local file. Rsync works across a network or across the Internet so you can have your files anywhere you have access. Linux provides me with another valuable command called cron. It is used to perform a task periodically, hours, days, weeks, months, etc. Once I set up a cron job I don?t need to worry about backing up my files. It all happens behind the scenes at whatever time of day I choose. The first time you run rsync on a set of folders it copies the entire set. The next time it runs only the modified files are copied. Normal backup commands make compressed copies of all of the files in the chosen set of folders. Over time they build up a large set of files which are not readily accessible by humans taking up an inordinate amount of space. Rsync creates a mirror image of what your file system looks like right now. If you need one data file from the middle of that pile of files you can find it using your normal file system search mechanism. You do not need to decompress or decrypt anything. Everything is in front of you, easy to read. I know this may seem Linux specific but it is not. That is just where I learned how to do this. Subversion, rsync, and a cron equivalent are available for both Linux and Windows systems and I suspect there are Mac versions too. The modern Macintosh OS is a flavor of Linux if you scratch beneath the surface. My first method of data protection is specific to how I build computers. Keep the OS and applications on one small drive while keeping all of the user created and collected data on a second, larger drive (or in my case across the network on the file server). The OS and application set do not change very rapidly so you can make a copy for later. The data changes on a regular basis so you need another method to preserve it. Hopefully, these suggestions will help you keep your most precious data intact. 73 & GL with any hardware crashes, ?? Kevin.? KD5ONS - From dick.w7zr at gmail.com Sat Jun 13 15:14:46 2020 From: dick.w7zr at gmail.com (Richard Zalewski) Date: Sat, 13 Jun 2020 12:14:46 -0700 Subject: [Elecraft] kpa1500-ic-7300 FT8 In-Reply-To: <045401d641b6$5d551a40$17ff4ec0$@LNAINC.com> References: <045401d641b6$5d551a40$17ff4ec0$@LNAINC.com> Message-ID: ATU is doing its job on all bands. Also to note I am only pushing the amp to about 125W output. Richard *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU, J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV *Be joyful in hope, patient in affliction, faithful in prayer* On Sat, Jun 13, 2020 at 12:10 PM Lyn Norstad wrote: > Is the ATU doing its job? > > 73 > Lyn, W0LEN > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Richard Zalewski > Sent: Saturday, June 13, 2020 11:15 AM > To: Elecraft Reflector > Subject: [Elecraft] kpa1500-ic-7300 FT8 > > Noticing something different on 6m. When the amp keys for a moment the SWR > indicated on the KPA is 2:1 but then a second later it is 1.4:1. Seems > only happening on 6m. > > Richard > *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU, > J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV > > > *Be joyful in hope, patient in affliction, faithful in prayer* > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lyn at lnainc.com > > From al7cr at mooseaviation.com Sat Jun 13 15:34:12 2020 From: al7cr at mooseaviation.com (AL7CR) Date: Sat, 13 Jun 2020 12:34:12 -0700 Subject: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux In-Reply-To: References: <199901d64183$f225c0d0$d6714270$@ka7ftp.com> Message-ID: <6ce355e5-5f81-424a-969b-94a151d46bc3@www.fastmail.com> Looks like it is available here: https://kx3-blog.de/?p=200 On Sat, Jun 13, 2020, at 8:02 AM, Grant Youngman wrote: > So given that this is on a German blog site, I?m going to guess that > it?s third party and not straight from an Elecraft test bench (?). > Does it report out null depth found for each band/bandwidth combination > or just run through them presuming everything else is hunky dory. > > Grant NQ5T > > > On Jun 13, 2020, at 10:47 AM, Mark Forsyth wrote: > > > > Yep. That?s exactly what I mean ...:-) > > > > Cheers > > Mark Forsyth > > http://jandmf.com > > > >> On 13 Jun 2020, at 11:11 pm, "len at ka7ftp.com" wrote: > >> > >> ?By "up to date" I assume you mean firmware? > >> > >> > >> -----Original Message----- > >> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mark Forsyth > >> Sent: Friday, June 12, 2020 10:18 PM > >> To: Grant Youngman > >> Cc: Elecraft Refl > >> Subject: Re: [Elecraft] [KX3] Oppopsite Sideband Null question - Redux > >> > >> Hi, > >> Elecraft have a handy little utility called RxSbNull.exe which does the whole process. All you need is an up to date KX3, an up to date XG3, a Windows computer and the utility. It works like a charm. Turn the radio volume down before you start it though otherwise it?ll annoy the hell out of you. > >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to al7cr at mooseaviation.com From john at johnjeanantiqueradio.com Sat Jun 13 16:40:31 2020 From: john at johnjeanantiqueradio.com (John K9UWA) Date: Sat, 13 Jun 2020 16:40:31 -0400 Subject: [Elecraft] Computer Monitor Recommendations In-Reply-To: References: <1431851952.2305633.1591970644847.ref@mail.yahoo.com>, , Message-ID: <5EE539BF.1719.C76EA11@john.johnjeanantiqueradio.com> THANK YOU K9YC Jim I have read all the monitor solutions offered since the OP posted his question yesterday. #1 I never met a monitor yet that didn't emit RFI and at least 90% of the noise was from the no surprise here Switching Power Supply. That said I purchase two LG LCD monitors 2 years ago that have EXTERNAL WALL WART supplies. No I didn't want to go inside a brand new monitor to try curing the SMPS noise. I can replace a Wall Wart 19 volts 2 amps. Nice Lambda regulated power supply. I think it weighs around 20 pounds. I added #31 mix cores to the AC cord on the Lambda supply plus #31 mix cores on the 19v to each Monitor. The Test? Transistor scanning radio that scans from LW up through VHF. While listening to the monitor and yes I can hear it a couple inches from the LCD screen but no farther than that. And Zero RF noise when listening to the DC line to the monitors or the AC line to the Lambda 0 to 20v supply. 73 John k9uwa > > No EMI that I can > > detect by on-off testing (there's plenty from other nearby sources). > > Did you unplug the wall wart (or the monitor) from the wall? That PSU, > whether external or built into the monitor, usually a major noise source. > > ALWAYS, when offering (or evaluating) advice about whether some device > is noisy, consider the possibility that the noise it produces is covered > by noise from other sources in your home and in your neighbors's homes. > Also consider proximity to ANTENNAS, not to the shack. > > I work a lot of FT8 on 160M to work DX and on 6M to work new grids. The > signal report is the signal to noise ratio. I run legal limit to very > good antennas on both bands, and I regularly receive reports that are at > least 10 dB worse than I give, telling me that most hams have horrendous > noise levels. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to john at johnjeanantiqueradio.com > John Goller, K9UWA & Jean Goller, N9PXF Antique Radio Restorations k9uwa at arrl.net Visit our Web Site at: http://www.JohnJeanAntiqueRadio.com 4836 Ranch Road Leo, IN 46765 USA 1-260-637-6426 From k2asp at kanafi.org Sat Jun 13 18:09:11 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 13 Jun 2020 15:09:11 -0700 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: <41ac4a23-5957-ca26-d13d-2dd361a6c491@coho.net> References: <41ac4a23-5957-ca26-d13d-2dd361a6c491@coho.net> Message-ID: <8eed7453-9853-92ca-58a3-f045a63f1a6c@kanafi.org> On 6/13/2020 12:11 PM, kevinr wrote: > The tool I use for this third method of data protection is a command > built into Linux but available to Windows and Mac users too. My regular backup program is NovaBACKUP PC from NovaStor. It is a commercial program that I have been using for many years on all my computers, making a daily incremental backup and a weekly full backup using external drives for storage of the compressed files. It has a GUI that permits restoration (both overwrite and write elsewhere) of files and folders. It has saved my backsplash several times in the recent past. There is a linux version called NovaBACKUP Data Center that is distro-independent. (No, I don't own stock in NovaStor.) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From jtmiller47 at gmail.com Sat Jun 13 18:31:14 2020 From: jtmiller47 at gmail.com (Jim Miller) Date: Sat, 13 Jun 2020 18:31:14 -0400 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: <8eed7453-9853-92ca-58a3-f045a63f1a6c@kanafi.org> References: <8eed7453-9853-92ca-58a3-f045a63f1a6c@kanafi.org> Message-ID: <3830ADC6-EF09-4080-9082-ADAB9CBA4619@gmail.com> Backblaze here On Jun 13, 2020, at 6:11 PM, Phil Kane wrote: ?On 6/13/2020 12:11 PM, kevinr wrote: > The tool I use for this third method of data protection is a command > built into Linux but available to Windows and Mac users too. My regular backup program is NovaBACKUP PC from NovaStor. It is a commercial program that I have been using for many years on all my computers, making a daily incremental backup and a weekly full backup using external drives for storage of the compressed files. It has a GUI that permits restoration (both overwrite and write elsewhere) of files and folders. It has saved my backsplash several times in the recent past. There is a linux version called NovaBACKUP Data Center that is distro-independent. (No, I don't own stock in NovaStor.) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jim at jtmiller.com From k6dgw at foothill.net Sat Jun 13 18:40:05 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sat, 13 Jun 2020 15:40:05 -0700 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: <3830ADC6-EF09-4080-9082-ADAB9CBA4619@gmail.com> References: <8eed7453-9853-92ca-58a3-f045a63f1a6c@kanafi.org> <3830ADC6-EF09-4080-9082-ADAB9CBA4619@gmail.com> Message-ID: And, do any of you ever check the backups to make sure they really have anything there?? In the olden days of reel-to-reel tapes, the number of backup tapes in the library that were actually blank often exceeded the number of valid tapes in the library.? Lots of scrambling when you needed that tape. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/13/2020 3:31 PM, Jim Miller wrote: > Backblaze here > > On Jun 13, 2020, at 6:11 PM, Phil Kane wrote: > > ?On 6/13/2020 12:11 PM, kevinr wrote: > >> The tool I use for this third method of data protection is a command >> built into Linux but available to Windows and Mac users too. > My regular backup program is NovaBACKUP PC from NovaStor. It is a > commercial program that I have been using for many years on all my > computers, making a daily incremental backup and a weekly full backup > using external drives for storage of the compressed files. It has a GUI > that permits restoration (both overwrite and write elsewhere) of files > and folders. It has saved my backsplash several times in the recent > past. There is a linux version called NovaBACKUP Data Center that is > distro-independent. (No, I don't own stock in NovaStor.) > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jim at jtmiller.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k6dgw at foothill.net From M0XDF at Alphadene.co.uk Sat Jun 13 18:55:10 2020 From: M0XDF at Alphadene.co.uk (David Ferrington, M0XDF) Date: Sat, 13 Jun 2020 23:55:10 +0100 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: References: <8eed7453-9853-92ca-58a3-f045a63f1a6c@kanafi.org> <3830ADC6-EF09-4080-9082-ADAB9CBA4619@gmail.com> Message-ID: <1E4A9A9A-E31A-4070-BE68-6810C08ED9E4@Alphadene.co.uk> Backblaze and Time Machine. 73 de David, M0XDF -- It is almost impossible to carry the torch of truth through a crowd without singeing somebody's beard. -George Christopher Lichtenberg, scientist and philosopher (1742-1799) > On 13 Jun 2020, at 23:40, Fred Jensen wrote: > > And, do any of you ever check the backups to make sure they really have anything there? In the olden days of reel-to-reel tapes, the number of backup tapes in the library that were actually blank often exceeded the number of valid tapes in the library. Lots of scrambling when you needed that tape. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/13/2020 3:31 PM, Jim Miller wrote: >> Backblaze here >> >> On Jun 13, 2020, at 6:11 PM, Phil Kane wrote: >> >> ?On 6/13/2020 12:11 PM, kevinr wrote: >> >>> The tool I use for this third method of data protection is a command >>> built into Linux but available to Windows and Mac users too. >> My regular backup program is NovaBACKUP PC from NovaStor. It is a >> commercial program that I have been using for many years on all my >> computers, making a daily incremental backup and a weekly full backup >> using external drives for storage of the compressed files. It has a GUI >> that permits restoration (both overwrite and write elsewhere) of files >> and folders. It has saved my backsplash several times in the recent >> past. There is a linux version called NovaBACKUP Data Center that is >> distro-independent. (No, I don't own stock in NovaStor.) >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> >> From a Clearing in the Silicon Forest >> Beaverton (Washington County) Oregon >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jim at jtmiller.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k6dgw at foothill.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to m0xdf at alphadene.co.uk From ehr at qrv.com Sat Jun 13 19:32:23 2020 From: ehr at qrv.com (E.H. Russell) Date: Sat, 13 Jun 2020 19:32:23 -0400 Subject: [Elecraft] CW rise time setting In-Reply-To: References: <002501d63dc5$c7c8b700$575a2500$@qrv.com> <9ae8e8d61165d1116bb1e93cb441fadd@sonic.net> <003801d63dcb$1431c5f0$3c9551d0$@qrv.com> <008701d640a3$7ebdc060$7c394120$@qrv.com> Message-ID: <00f601d641da$e49982b0$adcc8810$@qrv.com> In computer space 4ms is an eternity. I do wonder what is going on there. And also hope the K4 fixes it. Thanks again for the scope shot. Ed / w2rf From: Bob Wilson, N6TV Sent: Friday, June 12, 2020 10:37 AM To: Elecraft Reflector Cc: E.H. Russell Subject: Re: [Elecraft] CW rise time setting The plot in the QST review of the K3S shows the delay between "key closure" (the KEY jack of K3S) and RF out. My plot shows the delay between "amp relay closure" (the KEY OUT jack of K3S) and RF, which is more critical. Most folks assume there will be no delay between KEY closure and KEY OUT closure, but there is an extra delay (of about 5 ms, minimum) in the K3S. The same applies to PTT IN closure and KEY OUT closure; that is, there is an unexplained fixed 5 ms delay in the K3S, probably due to slow firmware logic testing for TX Inhibit or an intentional enforcement of some minimum delay in RF output. Most radios close KEY OUT immediately upon key closure of either the KEY jack or the PTT IN jack. The K3 does not; it "hesitates" before closing KEY OUT. I'm also hoping the K4 will eliminate this unusual behavior. 73, Bob, N6TV On Fri, Jun 12, 2020 at 3:23 AM E.H. Russell > wrote: Bob, Thanks for the scope shot and info. I compared the waveform to the QST K3S review, which seems to show a little over 10ms before RF appears. Is this because they used different settings? Will be interesting to see how the new radio CW looks in time and frequency domains. Also how the turnaround latency is managed. Tks, 73 Ed w2rf From: Bob Wilson, N6TV > Sent: Thursday, June 11, 2020 2:05 PM To: Elecraft Reflector > Cc: E.H. Russell > Subject: Re: [Elecraft] CW rise time setting On Mon, Jun 8, 2020 at 12:31 PM E.H. Russell > wrote: I suppose shaping of the curve corners removes harmonics introduced by the abrupt transitions, allowing an accelerated ramp inbetween. But does this really reduce the total rise time to 2.5ms? It seems that the softening process must take some time. Wish I had a K3 here to scope against other radios. Anything published out there? Ed, Per your request, I am publishing this scope screen capture which plots the CW rise time in my K3 with the KSYN3A synthesizer upgrade. It's about 4 ms from 0 RF to full RF (2 ms per horizontal division): https://www.kkn.net/~n6tv/N6TV_K3_Ser_1494_FW_05.64_TX_DLY_8_CW_QRQ_OFF.png The vertical markers are there to illustrate that CONFIG:TX DLY nor 008 provides only about 6 ms of RF delay after "KEY OUT" goes to ground, not 8 ms, and there is jitter in that delay as well (not shown). If CW QRQ mode is enabled, the delay drops to about 4.6 ms and the TX DLY setting is completely ignored. This was discussed here two years ago. See this post for suggestions on how to avoid hot-switching a non-Elecraft amplifier driven by a K3 or K3S: http://elecraft.365791.n2.nabble.com/Default-K3-transmit-delay-may-be-too-short-for-slow-QRO-amplifiers-td7641779.html 73, Bob, N6TV From k2asp at kanafi.org Sat Jun 13 20:19:05 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 13 Jun 2020 17:19:05 -0700 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: References: <8eed7453-9853-92ca-58a3-f045a63f1a6c@kanafi.org> <3830ADC6-EF09-4080-9082-ADAB9CBA4619@gmail.com> Message-ID: <53bbd0ba-7847-ff16-64fd-56ae8728d6c1@kanafi.org> On 6/13/2020 3:40 PM, Fred Jensen wrote: > And, do any of you ever check the backups to make sure they really have > anything there?? Yes. Each morning I check to see if the backup ran overnight and if the file size is appropriate for what it should be. If it's Zero I start looking why. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From kevinr at coho.net Sat Jun 13 22:03:47 2020 From: kevinr at coho.net (kevinr) Date: Sat, 13 Jun 2020 19:03:47 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: Good Evening, ?? The sun just came out.? For the first time this week.? It was pouring only minutes ago.? What a gloomy spring.? In other news, there was a CME today.? Unfortunately it was from the other side of the sun.? It could mean an active sunspot region could pass over the limb in a week or so.? One can never tell, the sunspots have been evaporating quickly lately.? This could change too. Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) ? 7047 kHz at 0000z Monday (5 PM PDT Sunday) ?? 73, ????? Kevin. KD5ONS _ You can't always get what you want You can't always get what you want But if you try some time You get what you need From frantz at pwpconsult.com Sat Jun 13 22:45:42 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sat, 13 Jun 2020 22:45:42 -0400 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: <53bbd0ba-7847-ff16-64fd-56ae8728d6c1@kanafi.org> Message-ID: Being a Mac guy, I use "Time Machine". I do test it every once in a while when I recover a file, but having been in the computer industry for my career, I am generally careful enough that I don't have to recover files. (Knock on wood.) I have the largest disk I could find at Costco as a backup disk sitting on my desk. The real test comes when I buy an new computer and restore the entire backup to the new machine. That has worked through several new computers. The one time it didn't work, the old backup was so many no-longer-supported levels back, that the new machine didn't recognize it. However, with Time Machine, if you open the backup folder on the backup disk, you can dig down to a complete file system image that can just be copied. I like backup systems that are simple and don't try to do irreversible magic. The other dimension of backup is several offsite disks. One is at a house nearby, and another is on the other coast. Whenever I travel to those locations, I make a backup. If everthing here goes up in smoke, I do have some recourse. 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz | Can't fix stupid, but | Periwinkle (408)348-7900 | duct tape can muffle the| 150 Rivermead Road #235 www.pwpconsult.com | sound... - Bill Liebman | Peterborough, NY 03458 From W2xj at w2xj.net Sun Jun 14 06:28:11 2020 From: W2xj at w2xj.net (W2xj) Date: Sun, 14 Jun 2020 06:28:11 -0400 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: References: Message-ID: <288EA5B9-968E-46CD-A778-F6D141591656@w2xj.net> I backup into the cloud. When I get a new Mac, it restores automatically. Sent from my iPad > On Jun 13, 2020, at 10:46 PM, Bill Frantz wrote: > > ?Being a Mac guy, I use "Time Machine". I do test it every once in a while when I recover a file, but having been in the computer industry for my career, I am generally careful enough that I don't have to recover files. (Knock on wood.) > > I have the largest disk I could find at Costco as a backup disk sitting on my desk. > > The real test comes when I buy an new computer and restore the entire backup to the new machine. That has worked through several new computers. The one time it didn't work, the old backup was so many no-longer-supported levels back, that the new machine didn't recognize it. However, with Time Machine, if you open the backup folder on the backup disk, you can dig down to a complete file system image that can just be copied. I like backup systems that are simple and don't try to do irreversible magic. > > The other dimension of backup is several offsite disks. One is at a house nearby, and another is on the other coast. Whenever I travel to those locations, I make a backup. If everthing here goes up in smoke, I do have some recourse. > > 73 Bill AE6JV > > ----------------------------------------------------------------------- > Bill Frantz | Can't fix stupid, but | Periwinkle > (408)348-7900 | duct tape can muffle the| 150 Rivermead Road #235 > www.pwpconsult.com | sound... - Bill Liebman | Peterborough, NY 03458 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net From kurtt at pinrod.com Sun Jun 14 07:52:49 2020 From: kurtt at pinrod.com (Kurt Pawlikowski) Date: Sun, 14 Jun 2020 06:52:49 -0500 Subject: [Elecraft] KXPA100: PA Key Delay In-Reply-To: <64D0AE84-9A50-4080-AE84-4FEB18707C8B@widomaker.com> References: <64D0AE84-9A50-4080-AE84-4FEB18707C8B@widomaker.com> Message-ID: Bill, Et Al, ??? No... Will give that a try... k WB9FMC On 6/8/2020 10:53 AM, Nr4c wrote: > Have you considered the VOX delay? > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 8, 2020, at 10:49 AM, Kurt Pawlikowski wrote: >> >> ?Hi! >> >> I'm getting ready for Field Day. I use a circular polarized antenna and a device to switch polarization between transmit and receive. When sending code, the results in the relays changing with every dit and dah... I was wondering if there is an adjustment to increase the "release" time for this output so it would not switch back to the receive state immediately. I was contemplating a small circuit to accomplish this, but thought there might be a built-in solution. Any thoughts? Thanks! >> >> kurtt WB9FMC >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com From KI4LYS at msn.com Sun Jun 14 09:28:23 2020 From: KI4LYS at msn.com (Joseph McIntire) Date: Sun, 14 Jun 2020 13:28:23 +0000 Subject: [Elecraft] Firmware Message-ID: Hello all, I was looking for some older firmware for the K3. I found the latest on Elecraft's web site. But my radio currently has MCU1.96 and SYN 1.73. I didn't want to jump straight to the latest version due to if o e of the versions affected my radio adversely I would not know which one caused it. So I was wanting to find each individual version so I could load them as I want.i may want to stop before I get to the latest version. Thank you for listening to my rambling. Joe AB3JN Sent from my Verizon, Samsung Galaxy smartphone From jimk0xu at gmail.com Sun Jun 14 10:04:28 2020 From: jimk0xu at gmail.com (Jim Rhodes) Date: Sun, 14 Jun 2020 09:04:28 -0500 Subject: [Elecraft] kpa1500-ic-7300 FT8 In-Reply-To: References: <045401d641b6$5d551a40$17ff4ec0$@LNAINC.com> Message-ID: Almost sounds like you have a connection somewhere on 6 meters that is not 100% and as soon as the RF hits it makes itself solid. Could be anywhere in the circuit. That's the first thing I would check out. On Sat, Jun 13, 2020 at 2:17 PM Richard Zalewski wrote: > ATU is doing its job on all bands. Also to note I am only pushing the amp > to about 125W output. > > Richard > *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU, > J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV > > > *Be joyful in hope, patient in affliction, faithful in prayer* > > > On Sat, Jun 13, 2020 at 12:10 PM Lyn Norstad wrote: > > > Is the ATU doing its job? > > > > 73 > > Lyn, W0LEN > > > > > > -----Original Message----- > > From: elecraft-bounces at mailman.qth.net > > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Richard Zalewski > > Sent: Saturday, June 13, 2020 11:15 AM > > To: Elecraft Reflector > > Subject: [Elecraft] kpa1500-ic-7300 FT8 > > > > Noticing something different on 6m. When the amp keys for a moment the > SWR > > indicated on the KPA is 2:1 but then a second later it is 1.4:1. Seems > > only happening on 6m. > > > > Richard > > *W7ZR* ex:5C5Z, CN2ZR, K2JSP, W6SBZ, W7KXR, K9ZIJ, W9KNF, W0KDF, W0MQU, > > J68ZR, KC6ZR, PJ4/W7ZR, KH2,W7ZR, KH6/W7ZR, V31ZR, VK4AAZ, XE2DV > > > > > > *Be joyful in hope, patient in affliction, faithful in prayer* > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to lyn at lnainc.com > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jimk0xu at gmail.com > -- Jim K0XU jim at rhodesend.net From donwilh at embarqmail.com Sun Jun 14 11:27:32 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 14 Jun 2020 11:27:32 -0400 Subject: [Elecraft] Firmware In-Reply-To: References: Message-ID: Joe, I cannot recall any instance where the firmware upgrade broke the K3 - same for the KX3/KX2. There have been a few who suspected a problem with a firmware upgrade, but it turned out to be some other problem. I would recommend that you simply upgrade to the latest and be done with it. 73, Don W3FPR On 6/14/2020 9:28 AM, Joseph McIntire wrote: > Hello all, > I was looking for some older firmware for the K3. I found the latest on Elecraft's web site. But my radio currently has MCU1.96 and SYN 1.73. I didn't want to jump straight to the latest version due to if o e of the versions affected my radio adversely I would not know which one caused it. So I was wanting to find each individual version so I could load them as I want.i may want to stop before I get to the latest version. Thank you for listening to my rambling. From holohaj2 at hotmail.com Sun Jun 14 11:58:27 2020 From: holohaj2 at hotmail.com (James Holohan) Date: Sun, 14 Jun 2020 15:58:27 +0000 Subject: [Elecraft] MFJ 1234 Message-ID: Hi. Just wondering if anyone has used the MFJ 1234 Server with a K3S? I'm thinking of purchasing one but I'd like to hear from anyone with experience of using it. Jim EI4HH From w4sc at windstream.net Sun Jun 14 12:35:28 2020 From: w4sc at windstream.net (w4sc) Date: Sun, 14 Jun 2020 12:35:28 -0400 Subject: [Elecraft] SG4 coming Message-ID: <4C.CD.16493.0D156EE5@smtp01.aqua.bos.sync.lan> Is there a ?SG4 Sweep and Signal Generator? coming with LF (300 or 400 KHz) coverage on the horizon? Any clues? 73 de Ben W4SC Sent from Mail for Windows 10 From w6png at yahoo.com Sun Jun 14 12:51:13 2020 From: w6png at yahoo.com (Paul Gacek) Date: Sun, 14 Jun 2020 09:51:13 -0700 Subject: [Elecraft] KPOD still available....reduce price $239 + $15 shipping References: Message-ID: I still have the new inbox unused KPOD that i purchased 9 months ago. My price is $239 + $15 shipping to continental USA. Paul W6PNG/M0SNA www.nomadic.blog From nr4c at widomaker.com Sun Jun 14 13:19:09 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 14 Jun 2020 13:19:09 -0400 Subject: [Elecraft] Firmware In-Reply-To: References: Message-ID: <5DA58AC1-60FD-491B-9B03-E3AD5F8F0201@widomaker.com> First thought is to just update to latest. Not too likely one will mess up your radio. But....... If you want to load intermediate versions, look in the BETA folders. A Beta version has the same version # as it?s ultimate production #. Sent from my iPhone ...nr4c. bill > On Jun 14, 2020, at 9:30 AM, Joseph McIntire wrote: > > ?Hello all, > I was looking for some older firmware for the K3. I found the latest on Elecraft's web site. But my radio currently has MCU1.96 and SYN 1.73. I didn't want to jump straight to the latest version due to if o e of the versions affected my radio adversely I would not know which one caused it. So I was wanting to find each individual version so I could load them as I want.i may want to stop before I get to the latest version. Thank you for listening to my rambling. > > > Joe AB3JN > Sent from my Verizon, Samsung Galaxy smartphone > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From mike.harris at horizon.co.fk Sun Jun 14 13:21:23 2020 From: mike.harris at horizon.co.fk (Mike Harris) Date: Sun, 14 Jun 2020 14:21:23 -0300 Subject: [Elecraft] Firmware In-Reply-To: References: Message-ID: Quite so. However, this sounds like a pretty old K3 that hasn't been blessed with certain or any factory hardware mods which will have a bearing on features available and detailed in the revised menu options. At the very least the firmware release notes, which are presented in historical detail with each firmware release, need to be read through. Regards and good luck, Mike VP8NO On 14/06/2020 12:27, Don Wilhelm wrote: > Joe, > > I cannot recall any instance where the firmware upgrade broke the K3 - > same for the KX3/KX2. > There have been a few who suspected a problem with a firmware upgrade, > but it turned out to be some other problem. > > I would recommend that you simply upgrade to the latest and be done with > it. > > 73, > Don W3FPR > > On 6/14/2020 9:28 AM, Joseph McIntire wrote: >> Hello all, >> ??? I was looking for some older? firmware for the K3. I found? the >> latest? on Elecraft's web site. But my radio currently has MCU1.96 and >> SYN 1.73. I didn't want to jump straight to the latest? version? due >> to if o e of the? versions affected? my? radio? adversely I would not >> know which one caused it. So I was wanting to find each individual >> version so I could load them as I want.i may want to stop? before I >> get to the latest version. Thank you for listening to my rambling. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mike.harris at horizon.co.fk From w0cz at i29.net Sun Jun 14 13:28:06 2020 From: w0cz at i29.net (Kenneth Christiansen) Date: Sun, 14 Jun 2020 12:28:06 -0500 Subject: [Elecraft] MFJ 1234 In-Reply-To: References: Message-ID: <53E0C8C5-C032-4E43-B443-8F92FBF3B88C@i29.net> Hi Jim I bought a 1234 in March of 2020. I am using this iPhone 10 XR and NO-IP to control it from remote locations. CW worked right away and SSB needed three menu changes to the K3S. The monitor for SSB must be set to minimum, MIC+LIN must be set to off and MIC SEL must be set to LInE In. I have checked into the Sunday morning 160 meter net remotely and everyone says it sounds fine. One thing I like a lot is the 15 macros I have been able to write into the 1234 to allow me to make changes remotely in the event I forget to do it before I go. I work 160 SSB and CW on 80 - 10. I can change antennas on the K3S and tune them from the remote. 160 uses a dipole and the rest of the bands a vertical. Good luck. I had another remote but quit using it years ago because I had to always change several cables and it did not have many Macros. This one lets me change and get on the air anyplace with my phone as long as the K3S is on. Ken W0CZ. w0cz at i29.net Sent from my iPhone > On Jun 14, 2020, at 11:01 AM, James Holohan wrote: > > ?Hi. > Just wondering if anyone has used the MFJ 1234 Server with a K3S? I'm thinking of purchasing one but I'd like to hear from anyone with experience of using it. > Jim EI4HH > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wocz at i29.net > From donwilh at embarqmail.com Sun Jun 14 13:37:21 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 14 Jun 2020 13:37:21 -0400 Subject: [Elecraft] Firmware In-Reply-To: References: Message-ID: To the best of my knowledge, there are no firmware upgrades that require hardware changes. The firmware is written to figure out which version to load - an example is the old and the new DSP board - but that was long ago. The converse is NOT true - some hardware changes require firmware upgrades to make them functional. 73, Don W3FPR On 6/14/2020 1:21 PM, Mike Harris via Elecraft wrote: > Quite so. > > However, this sounds like a pretty old K3 that hasn't been blessed with > certain or any factory hardware mods which will have a bearing on > features available and detailed in the revised menu options. > > At the very least the firmware release notes, which are presented in > historical detail with each firmware release, need to be read through. > > Regards and good luck, > > Mike VP8NO > > On 14/06/2020 12:27, Don Wilhelm wrote: >> Joe, >> >> I cannot recall any instance where the firmware upgrade broke the K3 - >> same for the KX3/KX2. >> There have been a few who suspected a problem with a firmware upgrade, >> but it turned out to be some other problem. >> >> I would recommend that you simply upgrade to the latest and be done >> with it. >> From linehangp at me.com Sun Jun 14 13:54:56 2020 From: linehangp at me.com (George P Linehan III) Date: Sun, 14 Jun 2020 10:54:56 -0700 Subject: [Elecraft] ISO ASSEMBLED 30 meter Kx-1 Board Message-ID: <64428322-B5C9-46E5-B899-482944185801@me.com> Paul, WA6YCA TNX & 73 From kc2lsd at yahoo.com Sun Jun 14 14:10:37 2020 From: kc2lsd at yahoo.com (Cody C) Date: Sun, 14 Jun 2020 18:10:37 +0000 (UTC) Subject: [Elecraft] KPA 1500 not communicating with my PC References: <203892116.667180.1592158237816.ref@mail.yahoo.com> Message-ID: <203892116.667180.1592158237816@mail.yahoo.com> I tried to perform aFirmware update on my KPA 1500 and my PC no longer is communicating with theamp. I tried a new cable, I also downing the utility program on my laptop stillno joy. My last attempt was to run the remote software program. I was able toconfigure it but I don't see a way to update the FW. ? Any ideas? ? 73 Cody Kc2Lsd From ns9i at bayland.net Sun Jun 14 14:15:46 2020 From: ns9i at bayland.net (NS9I WI) Date: Sun, 14 Jun 2020 13:15:46 -0500 Subject: [Elecraft] MFJ 1234 In-Reply-To: <53E0C8C5-C032-4E43-B443-8F92FBF3B88C@i29.net> References: <53E0C8C5-C032-4E43-B443-8F92FBF3B88C@i29.net> Message-ID: <9e871873-a73d-be4c-b7cc-0a559405694f@bayland.net> How do you turn the K3S on? t u 73 Dwight NS9I On 6/14/2020 12:28 PM, Kenneth Christiansen wrote: > Hi Jim > I bought a 1234 in March of 2020. > I am using this iPhone 10 XR and NO-IP to control it from remote locations. CW worked right away and SSB needed three menu changes to the K3S. The monitor for SSB must be set to minimum, MIC+LIN must be set to off and MIC SEL must be set to LInE In. > I have checked into the Sunday morning 160 meter net remotely and everyone says it sounds fine. > One thing I like a lot is the 15 macros I have been able to write into the 1234 to allow me to make changes remotely in the event I forget to do it before I go. I work 160 SSB and CW on 80 - 10. I can change antennas on the K3S and tune them from the remote. 160 uses a dipole and the rest of the bands a vertical. Good luck. I had another remote but quit using it years ago because I had to always change several cables and it did not have many Macros. This one lets me change and get on the air anyplace with my phone as long as the K3S is on. > Ken W0CZ. w0cz at i29.net > Sent from my iPhone > >> On Jun 14, 2020, at 11:01 AM, James Holohan wrote: >> >> ?Hi. >> Just wondering if anyone has used the MFJ 1234 Server with a K3S? I'm thinking of purchasing one but I'd like to hear from anyone with experience of using it. >> Jim EI4HH >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to wocz at i29.net >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ns9i at bayland.net From ghyoungman at gmail.com Sun Jun 14 14:28:35 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sun, 14 Jun 2020 14:28:35 -0400 Subject: [Elecraft] KPA 1500 not communicating with my PC In-Reply-To: <203892116.667180.1592158237816@mail.yahoo.com> References: <203892116.667180.1592158237816@mail.yahoo.com> Message-ID: <202F279B-66A8-4A3E-AE6B-332FF2815E5E@gmail.com> Did you try simply rebooting your PC before connecting the KPA? Grant NQ5T Sent from my iPhone > On Jun 14, 2020, at 2:11 PM, Cody C via Elecraft wrote: > > ? > I tried to perform aFirmware update on my KPA 1500 and my PC no longer is communicating with theamp. I From lists at w2irt.net Sun Jun 14 14:51:44 2020 From: lists at w2irt.net (Peter Dougherty) Date: Sun, 14 Jun 2020 14:51:44 -0400 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: <288EA5B9-968E-46CD-A778-F6D141591656@w2xj.net> References: <288EA5B9-968E-46CD-A778-F6D141591656@w2xj.net> Message-ID: <02ea01d6427c$d9cbfa50$8d63eef0$@w2irt.net> I have a paid Dropbox account, supplemented by Microsoft OneDrive, folders for which reside on my D: drive. All my data (including pictures, videos, music, documents, and work projects) go in there AND get backed up to a local NAS for redundancy. The OS partition (C : drive) including all software, settings, download, temporary and archive folders are backed up using a differential scheme to a NAS device daily, and a full backup to a Passport drive weekly. I use Acronis True Image Home for backup/restore software. All my logs are backed up multiple places for safety, however due to the structure of both my DX logger and N1MM+ Contest Logger, they have to be run from a non-cloud folder, so extra care is taken in both cases. I'm less worried about the OS and software; those can be reinstalled easily enough over the course of a few days (albeit with lots of swearing involved), but the data, all of it irreplaceable, has to be stored in Dropbox (meaning a copy exists not just in the cloud but on the hard drive of every computer I own that's connected to the account). - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of W2xj Sent: Sunday, June 14, 2020 6:28 AM To: Bill Frantz Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Data protection and recovery techniques I backup into the cloud. When I get a new Mac, it restores automatically. Sent from my iPad > On Jun 13, 2020, at 10:46 PM, Bill Frantz wrote: > > ?Being a Mac guy, I use "Time Machine". I do test it every once in a > while when I recover a file, but having been in the computer industry > for my career, I am generally careful enough that I don't have to > recover files. (Knock on wood.) > > I have the largest disk I could find at Costco as a backup disk sitting on my desk. > > The real test comes when I buy an new computer and restore the entire backup to the new machine. That has worked through several new computers. The one time it didn't work, the old backup was so many no-longer-supported levels back, that the new machine didn't recognize it. However, with Time Machine, if you open the backup folder on the backup disk, you can dig down to a complete file system image that can just be copied. I like backup systems that are simple and don't try to do irreversible magic. > > The other dimension of backup is several offsite disks. One is at a house nearby, and another is on the other coast. Whenever I travel to those locations, I make a backup. If everthing here goes up in smoke, I do have some recourse. > > 73 Bill AE6JV > > ----------------------------------------------------------------------- > Bill Frantz | Can't fix stupid, but | Periwinkle > (408)348-7900 | duct tape can muffle the| 150 Rivermead Road #235 > www.pwpconsult.com | sound... - Bill Liebman | Peterborough, NY 03458 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > w2xj at w2xj.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From nr4c at widomaker.com Sun Jun 14 15:05:56 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 14 Jun 2020 15:05:56 -0400 Subject: [Elecraft] KPA 1500 not communicating with my PC In-Reply-To: <203892116.667180.1592158237816@mail.yahoo.com> References: <203892116.667180.1592158237816@mail.yahoo.com> Message-ID: <2CB3C21C-2C41-405C-AB75-48D5995FF3BF@widomaker.com> What OS.? Restart computer. Then restart the amp. Sent from my iPhone ...nr4c. bill > On Jun 14, 2020, at 2:12 PM, Cody C via Elecraft wrote: > > ? > I tried to perform aFirmware update on my KPA 1500 and my PC no longer is communicating with theamp. I tried a new cable, I also downing the utility program on my laptop stillno joy. My last attempt was to run the remote software program. I was able toconfigure it but I don't see a way to update the FW. > > > > Any ideas? > > > > 73 Cody Kc2Lsd > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From huntinhmb at coastside.net Sun Jun 14 15:19:14 2020 From: huntinhmb at coastside.net (Brian Hunt) Date: Sun, 14 Jun 2020 12:19:14 -0700 Subject: [Elecraft] Firmware In-Reply-To: References: Message-ID: <90BD7188-1DE1-4183-BE02-1A792CFA57A4@coastside.net> The suggestion to read through the release notes is a good one. As I recall there was an update a while back that needed the TX GAIN CAL to be redone. It will be identified in the release notes. Good luck! 73, Brian, K0DTJ From k6dgw at foothill.net Sun Jun 14 15:28:02 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sun, 14 Jun 2020 12:28:02 -0700 Subject: [Elecraft] Data protection and recovery techniques In-Reply-To: <02ea01d6427c$d9cbfa50$8d63eef0$@w2irt.net> References: <288EA5B9-968E-46CD-A778-F6D141591656@w2xj.net> <02ea01d6427c$d9cbfa50$8d63eef0$@w2irt.net> Message-ID: <21b4a8b3-0c60-60f7-fb01-b4ac70b573c6@foothill.net> From history:? First job after discharge from the US Air Force in 1972 was in the Systems & Data Processing department at the County of Sacramento.? Please note the date, we were still using 80-col punched cards on an IBM 360-40 with 2314 disk drives and reel-to-reel tape drives.? The tape library was in a vault where one wall was used for system back-up tapes.? I was working on the Assessor's systems, one of which was a multiple linear regression program for appraising similar properties in suburban areas.? I was the only one in the department fluent in FORTRAN IV, one of the reasons I got the job. The Assessor asked me one day how his data were protected.? After telling him, "Magnetic tape copies made whenever your parcel file [6 tape volumes] is mounted with write rings,"? I wondered, so I wrote a little program to mount the file [sans write rings] and gather some statistics.? The first 2 volume sets we ran were blank, so we went to the end of the backup chain and tried the oldest one.? Not surprisingly, it too was blank.? Checking some of the other systems [e.g. Tax Collection, Welfare], we found: 1.? Blank back-up sets 2.? Back-up sets being recycled faster than the processing cycles that created the data 3.? Two systems with intact, recoverable back-up sets I just asked the original question because the "art of back-up" is often the epitome of "Fire and Forget."? You might want to carve out a little time and see if the recovery part of "backup and recovery" actually recovers anything. [:=) 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/14/2020 11:51 AM, Peter Dougherty wrote: > I have a paid Dropbox account, supplemented by Microsoft OneDrive, folders for which reside on my D: drive. All my data (including pictures, videos, music, documents, and work projects) go in there AND get backed up to a local NAS for redundancy. The OS partition (C : drive) including all software, settings, download, temporary and archive folders are backed up using a differential scheme to a NAS device daily, and a full backup to a Passport drive weekly. I use Acronis True Image Home for backup/restore software. > > All my logs are backed up multiple places for safety, however due to the structure of both my DX logger and N1MM+ Contest Logger, they have to be run from a non-cloud folder, so extra care is taken in both cases. > > I'm less worried about the OS and software; those can be reinstalled easily enough over the course of a few days (albeit with lots of swearing involved), but the data, all of it irreplaceable, has to be stored in Dropbox (meaning a copy exists not just in the cloud but on the hard drive of every computer I own that's connected to the account). > > - pjd > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of W2xj > Sent: Sunday, June 14, 2020 6:28 AM > To: Bill Frantz > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Data protection and recovery techniques > > I backup into the cloud. When I get a new Mac, it restores automatically. > > Sent from my iPad > >> On Jun 13, 2020, at 10:46 PM, Bill Frantz wrote: >> >> ?Being a Mac guy, I use "Time Machine". I do test it every once in a >> while when I recover a file, but having been in the computer industry >> for my career, I am generally careful enough that I don't have to >> recover files. (Knock on wood.) >> >> I have the largest disk I could find at Costco as a backup disk sitting on my desk. >> >> The real test comes when I buy an new computer and restore the entire backup to the new machine. That has worked through several new computers. The one time it didn't work, the old backup was so many no-longer-supported levels back, that the new machine didn't recognize it. However, with Time Machine, if you open the backup folder on the backup disk, you can dig down to a complete file system image that can just be copied. I like backup systems that are simple and don't try to do irreversible magic. >> >> The other dimension of backup is several offsite disks. One is at a house nearby, and another is on the other coast. Whenever I travel to those locations, I make a backup. If everthing here goes up in smoke, I do have some recourse. >> >> 73 Bill AE6JV >> >> ----------------------------------------------------------------------- >> Bill Frantz | Can't fix stupid, but | Periwinkle >> (408)348-7900 | duct tape can muffle the| 150 Rivermead Road #235 >> www.pwpconsult.com | sound... - Bill Liebman | Peterborough, NY 03458 >> From alan at wilcoxengineering.com Sun Jun 14 16:38:43 2020 From: alan at wilcoxengineering.com (Alan D. Wilcox) Date: Sun, 14 Jun 2020 16:38:43 -0400 Subject: [Elecraft] [K2][K1] Legacy Tuneups, Rescue, Build Services Message-ID: <5378a7c7-8708-dccc-dee7-3713fdbd7405@wilcoxengineering.com> Hello, Does your K1 or K2 need repair? Tuneup? Want to sell, but it needs some attention before offering it for sale? In addition to tuning your rig, I can also rescue a building project you might have started some time ago. See what my clients have said about my construction and service work at http://www.eham.net/reviews/detail/6768 Photos of the popular "Twins" -- the KPA100 and KAT100 in EC2 enclosure -- are at https://wilcoxengineering.com/kpa100-in-ec2/ Cheers, Alan Alan D. Wilcox, W3DVX (K2-5373, K3-40) 570-916-9590 (cell, text) http://amazon.com/author/alandwilcox Williamsport, PA 17701 From w0cz at i29.net Sun Jun 14 16:44:03 2020 From: w0cz at i29.net (Kenneth Christiansen) Date: Sun, 14 Jun 2020 15:44:03 -0500 Subject: [Elecraft] MFJ 1234 In-Reply-To: <9e871873-a73d-be4c-b7cc-0a559405694f@bayland.net> References: <9e871873-a73d-be4c-b7cc-0a559405694f@bayland.net> Message-ID: <9FFB71F9-1ED0-4563-A738-16C411D6D73F@i29.net> Turning on the K3S is the one problem I have. I have to make sure it is on when I go. I would need another program to apply a ground momentarly to a pin of the K3S. I know there are programs that can do that but in my case it is not worth it to me to do it. If the home AC blinks than I am off the air until I get home. I could make a delay timer to apply a ground pulse say in about an hour after the power returns or some kind of remote pulse for my land line but ??? Sorry Ken W0CZ. w0cz at vi29.net Sent from my iPhone > On Jun 14, 2020, at 1:17 PM, NS9I WI wrote: > > ?How do you turn the K3S on? > > t u 73 Dwight NS9I > >> On 6/14/2020 12:28 PM, Kenneth Christiansen wrote: >> Hi Jim >> I bought a 1234 in March of 2020. >> I am using this iPhone 10 XR and NO-IP to control it from remote locations. CW worked right away and SSB needed three menu changes to the K3S. The monitor for SSB must be set to minimum, MIC+LIN must be set to off and MIC SEL must be set to LInE In. >> I have checked into the Sunday morning 160 meter net remotely and everyone says it sounds fine. >> One thing I like a lot is the 15 macros I have been able to write into the 1234 to allow me to make changes remotely in the event I forget to do it before I go. I work 160 SSB and CW on 80 - 10. I can change antennas on the K3S and tune them from the remote. 160 uses a dipole and the rest of the bands a vertical. Good luck. I had another remote but quit using it years ago because I had to always change several cables and it did not have many Macros. This one lets me change and get on the air anyplace with my phone as long as the K3S is on. >> Ken W0CZ. w0cz at i29.net >> Sent from my iPhone >> >>>> On Jun 14, 2020, at 11:01 AM, James Holohan wrote: >>> >>> ?Hi. >>> Just wondering if anyone has used the MFJ 1234 Server with a K3S? I'm thinking of purchasing one but I'd like to hear from anyone with experience of using it. >>> Jim EI4HH >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to wocz at i29.net >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ns9i at bayland.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wocz at i29.net From oz6abm at qsl.net Sun Jun 14 17:04:50 2020 From: oz6abm at qsl.net (oz6abm at qsl.net) Date: Sun, 14 Jun 2020 23:04:50 +0200 Subject: [Elecraft] K3 power out and displaying bar graphs... Message-ID: <000001d6428f$71b5e170$5521a450$@qsl.net> Hi I have a K3 running through a KPA500. I had a QSO and the guy told me my audio was horrific. The only way I made it acceptable for him and others was dropping my Compression and Mic gain to much lower values, that is 10 for each. I know I have a low tone in my voice, so I expected the Compression to be much higher, but they say it causes a howling sound on their side. Furthermore, when using the KPA500 for say 300 W PEP I set the PWR to 20 watts. This has the effect that there is basically no deflection on the RF bar scale. In fact, I can set it to 80 without deflection. Is there some way to get these values recalibrated? I have tried two different MH2 microphones without any difference. Thanks Robin OZ6ABM/5P5R From w6png at yahoo.com Sun Jun 14 17:07:33 2020 From: w6png at yahoo.com (Paul Gacek) Date: Sun, 14 Jun 2020 14:07:33 -0700 Subject: [Elecraft] FS: PX3 (currently backordered by Elecraft) with SideKX endplates/lexan cover - MINT Condition References: <6D67FF54-0F76-4357-ACC4-AF0C5224D77F.ref@yahoo.com> Message-ID: <6D67FF54-0F76-4357-ACC4-AF0C5224D77F@yahoo.com> I'm working my way through a surplus of radio gear and am offering my second factory built PX3 for sale. I am the original owner. I think these are backordered at Elecraft but mine will ship as soon as payment is received! It's in fabulous condition, with SIdeKX end plates and lexan cover. Factory built, no scratches and has seen very little use beyond a few contests. Any off premise trips it was transported in a lens case. Much of my gear sees little use as I?m primarily a SOTA guy out with my KX2. New Elecraft price is $729 with a summer discount to $679 (but backordered). https://elecraft.com/products/px3-f-panadapter SideKX endplates and cover retail at $68. https://gemsproducts.com/product/px3-end-panels-cover/ Your price is $679 plus $20 shipping/insurance and payment (via PayPal to paul.gacek at gmail.com ) Photos available. Paul W6PNG/M0SNA www.nomadic.blog From k7im at icloud.com Sun Jun 14 18:25:43 2020 From: k7im at icloud.com (Michael K Bottles) Date: Sun, 14 Jun 2020 15:25:43 -0700 Subject: [Elecraft] W7TMT Message-ID: <17C209C2-B2DD-472B-ADA7-F002B364E648@icloud.com> ?I met Patrick W7TMT in person for the first time this morning. We had linked up here on the Elecraft Group when the subject of grounds on powerboats was discussed. He installed a 144/440 high-gain vertical on top of my MA-770 because he knew I was in chemo therapy and I wasn?t feeling well enough to do it myself. You meet the nicest people here in the Elecraft Group! Thank you Patrick! Kim - K7IM Sent from my iPad From rick.nk7i at gmail.com Sun Jun 14 18:33:54 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Sun, 14 Jun 2020 15:33:54 -0700 Subject: [Elecraft] MFJ 1234 In-Reply-To: <9FFB71F9-1ED0-4563-A738-16C411D6D73F@i29.net> References: <9e871873-a73d-be4c-b7cc-0a559405694f@bayland.net> <9FFB71F9-1ED0-4563-A738-16C411D6D73F@i29.net> Message-ID: <40a99d91-7ff7-71f1-e968-82f0f839ba72@gmail.com> I've used (successfully) a USB relay to momentarily toggle AUX line 8 (? check) to remotely power the K3 on but now I've switched to the N6TV S-Box-USB and Y-Box system, which works in much the same way (and can remotely power on the Elecraft amps, cleans up cabling etc.). Both methods require a computer that runs the 'turn on' file in bootup, OR being able to access that file from the main screen.? I have no problem leaving the station on at all times. For whatever reason, only when I was > 1000 miles away did the power blip and the K3 wasn't there.? It got old to have someone go in, just to turn the radio off.? These methods took away that worry. Even something as 'silly' as a Raspberry Pi toggling that AUX line once every XX minutes would work (and could provide other features). 73, Rick NK7I On 6/14/2020 1:44 PM, Kenneth Christiansen wrote: > Turning on the K3S is the one problem I have. I have to make sure it is on when I go. I would need another program to apply a ground momentarly to a pin of the K3S. I know there are programs that can do that but in my case it is not worth it to me to do it. If the home AC blinks than I am off the air until I get home. I could make a delay timer to apply a ground pulse say in about an hour after the power returns or some kind of remote pulse for my land line but ??? > Sorry > > Ken W0CZ. w0cz at vi29.net > > Sent from my iPhone > >> On Jun 14, 2020, at 1:17 PM, NS9I WI wrote: >> >> ?How do you turn the K3S on? >> >> t u 73 Dwight NS9I >> >>> On 6/14/2020 12:28 PM, Kenneth Christiansen wrote: >>> Hi Jim >>> I bought a 1234 in March of 2020. >>> I am using this iPhone 10 XR and NO-IP to control it from remote locations. CW worked right away and SSB needed three menu changes to the K3S. The monitor for SSB must be set to minimum, MIC+LIN must be set to off and MIC SEL must be set to LInE In. >>> I have checked into the Sunday morning 160 meter net remotely and everyone says it sounds fine. >>> One thing I like a lot is the 15 macros I have been able to write into the 1234 to allow me to make changes remotely in the event I forget to do it before I go. I work 160 SSB and CW on 80 - 10. I can change antennas on the K3S and tune them from the remote. 160 uses a dipole and the rest of the bands a vertical. Good luck. I had another remote but quit using it years ago because I had to always change several cables and it did not have many Macros. This one lets me change and get on the air anyplace with my phone as long as the K3S is on. >>> Ken W0CZ. w0cz at i29.net >>> Sent from my iPhone >>> >>>>> On Jun 14, 2020, at 11:01 AM, James Holohan wrote: >>>> ?Hi. >>>> Just wondering if anyone has used the MFJ 1234 Server with a K3S? I'm thinking of purchasing one but I'd like to hear from anyone with experience of using it. >>>> Jim EI4HH >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to wocz at i29.net >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to ns9i at bayland.net >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to wocz at i29.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rick.nk7i at gmail.com From w2ljqrp at gmail.com Sun Jun 14 20:40:17 2020 From: w2ljqrp at gmail.com (Larry W2LJ) Date: Sun, 14 Jun 2020 20:40:17 -0400 Subject: [Elecraft] NJQRP Skeeter Hunt numbers Message-ID: <7400246803464320513501@PcOwner> From w6ipa at poxika.net Sun Jun 14 21:49:19 2020 From: w6ipa at poxika.net (W6IPA) Date: Sun, 14 Jun 2020 18:49:19 -0700 Subject: [Elecraft] KX2 + KXPA100 = weird CAT behavior Message-ID: <53F88014-3D62-478D-9348-BFF63870C743@poxika.net> Hi, I am trying to get the decoded CW out of the kx2 usb/serial port using the CAT TT1;/TT0; commands. This works fine on the KX2 with direct connection - however, when going through the KXPA100, instead of receiving only the CW characters, there is a ^FL; appended, like this: A^FL;B^FL;C^FL;D^FL;E^FL;F^FL;G^FL;S^FL;I^FL; Is it a case where TBX should be used like for the PX3 case ? Any insight ? Thanks, JC/W6IPA. From w6png at yahoo.com Sun Jun 14 22:35:18 2020 From: w6png at yahoo.com (Paul Gacek) Date: Sun, 14 Jun 2020 19:35:18 -0700 Subject: [Elecraft] SOLD - KPOD still available....reduce price $239 + $15 shipping References: Message-ID: <6EB06D02-B09A-4687-B302-07CC21F96E58@yahoo.com> > From: Paul Gacek via Elecraft > Date: June 14, 2020 at 9:51:13 AM PDT > To: Elecraft Reflector > Subject: [Elecraft] KPOD still available....reduce price $239 + $15 shipping > Reply-To: Paul Gacek > > I still have the new inbox unused KPOD that i purchased 9 months ago. > > My price is $239 + $15 shipping to continental USA. > > Paul > W6PNG/M0SNA > www.nomadic.blog > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From kevinr at coho.net Mon Jun 15 00:01:22 2020 From: kevinr at coho.net (kevinr) Date: Sun, 14 Jun 2020 21:01:22 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: <364bc18a-142d-90dc-1091-25c7f2d49326@coho.net> Good Evening, ?? Conditions were good enough to log a few of you.? On twenty meters the QSB was deep, the QRN was medium to high, and there was some faint QRM making life interesting.? Forty meters had less noise but there were some storms acting up.? Less QSB too. ? On 14050.5 kHz at 2200z: NO8V - John - MI KL7CW - Rick - AK WM5F - Dwight - ID K6XK - Roy - IA K4JPN - Steve - GA K0DTJ - Brian - CA ? On 7047.5 kHz at 0000z: KG7V - Marv - WA WM5F - Dwight - ID K0DTJ - Brian - CA K6PJV - Dale - CA ? I heard Marv just as I was sitting down to start the second net.? Since 40 m can change quickly I called him and exchanged reports.? Dwight was good copy on both bands.? Normally he is only good on one or the other.? Forty meters keeps changing. ? The fir trees are covered in new growth.? I keep checking for deer but haven't seen any lately.? When I go hiking I find many more elk tracks.? They are starting to make a path.? The trail that was along my northern boundary is now twenty yards farther north so they can avoid the slash from the thinning.? Once the humidity drops a little (?) I plan to cut it and stack it in place.? That should keep me busy. ?? Until next week 73, ??????? Kevin.? KD5ONS - From jim at audiosystemsgroup.com Mon Jun 15 03:00:12 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 15 Jun 2020 00:00:12 -0700 Subject: [Elecraft] Setting Compression and TXEQ In-Reply-To: <000001d6428f$71b5e170$5521a450$@qsl.net> References: <000001d6428f$71b5e170$5521a450$@qsl.net> Message-ID: On 6/14/2020 2:04 PM, oz6abm at qsl.net wrote: > The only way I made it acceptable for him and others was dropping my Compression and Mic gain to much lower values, that is 10 for each. First, the numbers on the readout are MEANINGLESS. What matters is the indicated compression on the bar graph on voice peaks. > > I know I have a low tone in my voice, so I expected the Compression to be much higher, it has nothing to do with low tones. What you need to do is to FIRST set TXEQ to -18 for the first three bands and to -6 fourth band, set the top two bands to about +3, with the others set to 0. Next, set COMP all the way off (0 setting), then, while speaking into the mic, adjust Mic Gain for meter indication of full power on voice peaks.Set the display to show compression, continue to speak, and turn up the COMP knob so that you see about 10 dB on voice peaks. That's the right setting. > but they say it causes a howling sound on their side. Is it possible that you have MON turned up? Can you listen to your own transmitter on another radio? 73, Jim K9YC From lists at irdixon.plus.com Mon Jun 15 03:34:40 2020 From: lists at irdixon.plus.com (Roger Dixon) Date: Mon, 15 Jun 2020 08:34:40 +0100 Subject: [Elecraft] K3S with Remoterig RRC1258 Message-ID: <000001d642e7$6e90a4a0$4bb1ede0$@irdixon.plus.com> Hi All We have good success using a K3/0 mini to control a remote K3. We would now like to extend the system and have the possibility to use a K3S as the control rig and/or a K3S as the remote rig. I have, despite numerous searches, been able to discover the radio control connectivity for the K3S to the RRC at the control end or from the RRC to the K3S at the remote end. I would be interested in hearing from anyone who has been successful in using a K3S at either end. 73 Roger - G4BVY From g4bvh at cathyandpeter.com Mon Jun 15 04:04:23 2020 From: g4bvh at cathyandpeter.com (G4BVH) Date: Mon, 15 Jun 2020 09:04:23 +0100 Subject: [Elecraft] K3 - No RF output Message-ID: <001c01d642eb$94f28d80$bed7a880$@com> Hi, I have had a fault develop on my K3 whereby there is no RF being produced. I have emailed the details to Elecraft support and am hoping to receive a reply with suggestions. However, I thought I would also send the details here in case anyone can suggest something to try or investigate further. I have a K3, serial number 6482 which I built from a kit. It has worked flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters fitted and the 100W module but no other additions. A few days ago, it was running 20W of FT8 and I suddenly discovered that it hadn't been transmitting. Everything appeared that it should be transmitting: the red TX LED was lit, it was not in TEST mode (TX not flashing) but there was no RF output displayed on the bar graph and definitely nothing coming out on any mode. There is no RF if I wind down the power below the 10W level, there is the usual relay click going through 12W - 13W and still no RF above this level, ie on towards 100W. The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power level setting and 1.18A on the higher power setting on transmit. The RF output bar graph always displays 1 bar on transmit no matter what the power level is set but there is no RF coming out. I tried the TX calibration but it fails saying the power level didn't reach that required. The receiver works fine and I can hear the CW side tone and SSB, AM and FM audio monitoring as normal. I have removed and reseated the front panel and also the 3 coax patch leads behind the front panel but this made no difference. There is a yellow LED, D33, on the main board which is lit on receive and goes out on transmit. The latest firmware is installed - I updated this a month or so ago. TX inhibit is OFF and the 20A breaker has not tripped. Any thoughts or suggestions gratefully received. Very many thanks and 73, Peter, G4BVH -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From dick at elecraft.com Mon Jun 15 04:10:11 2020 From: dick at elecraft.com (Dick Dievendorff) Date: Mon, 15 Jun 2020 01:10:11 -0700 Subject: [Elecraft] K3 - No RF output In-Reply-To: <001c01d642eb$94f28d80$bed7a880$@com> References: <001c01d642eb$94f28d80$bed7a880$@com> Message-ID: <9C5C94B2-E030-4376-8E4D-78996D38C9CD@elecraft.com> Is TX test on? 73 de Dick, K6KR > On Jun 15, 2020, at 01:06, G4BVH wrote: > > ?Hi, > > > > I have had a fault develop on my K3 whereby there is no RF being produced. I > have emailed the details to Elecraft support and am hoping to receive a > reply with suggestions. However, I thought I would also send the details > here in case anyone can suggest something to try or investigate further. > > > > I have a K3, serial number 6482 which I built from a kit. It has worked > flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters > fitted and the 100W module but no other additions. > > > > A few days ago, it was running 20W of FT8 and I suddenly discovered that it > hadn't been transmitting. Everything appeared that it should be > transmitting: the red TX LED was lit, it was not in TEST mode (TX not > flashing) but there was no RF output displayed on the bar graph and > definitely nothing coming out on any mode. There is no RF if I wind down the > power below the 10W level, there is the usual relay click going through 12W > - 13W and still no RF above this level, ie on towards 100W. > > > > The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power > level setting and 1.18A on the higher power setting on transmit. The RF > output bar graph always displays 1 bar on transmit no matter what the power > level is set but there is no RF coming out. > > > > I tried the TX calibration but it fails saying the power level didn't reach > that required. > > > > The receiver works fine and I can hear the CW side tone and SSB, AM and FM > audio monitoring as normal. > > > > I have removed and reseated the front panel and also the 3 coax patch leads > behind the front panel but this made no difference. There is a yellow LED, > D33, on the main board which is lit on receive and goes out on transmit. > > > > The latest firmware is installed - I updated this a month or so ago. > > > > TX inhibit is OFF and the 20A breaker has not tripped. > > > > Any thoughts or suggestions gratefully received. > > > > Very many thanks and 73, > > > > Peter, G4BVH > > > > > > > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dick at elecraft.com From WOYB10051 at outlook.com Mon Jun 15 06:05:09 2020 From: WOYB10051 at outlook.com (John Langdon) Date: Mon, 15 Jun 2020 10:05:09 +0000 Subject: [Elecraft] K3S with Remoterig RRC1258 In-Reply-To: <000001d642e7$6e90a4a0$4bb1ede0$@irdixon.plus.com> References: <000001d642e7$6e90a4a0$4bb1ede0$@irdixon.plus.com> Message-ID: Should be no difference between K3 or K3S. The later model K3/0 minis have "K3S" on the front panel. See http://www.remoterig.com/downloads/RemoteRig_RRC1258-MkII_Users_manual-A40.pdf p 213 for setup for "Twin K3". 73 John N5CQ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Roger Dixon Sent: Monday, June 15, 2020 2:35 AM To: elecraft at mailman.qth.net Subject: [Elecraft] K3S with Remoterig RRC1258 Hi All We have good success using a K3/0 mini to control a remote K3. We would now like to extend the system and have the possibility to use a K3S as the control rig and/or a K3S as the remote rig. I have, despite numerous searches, been able to discover the radio control connectivity for the K3S to the RRC at the control end or from the RRC to the K3S at the remote end. I would be interested in hearing from anyone who has been successful in using a K3S at either end. 73 Roger - G4BVY ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to woyb10051 at outlook.com From wlbaber at bellsouth.net Mon Jun 15 07:11:26 2020 From: wlbaber at bellsouth.net (WILLIE BABER) Date: Mon, 15 Jun 2020 11:11:26 +0000 (UTC) Subject: [Elecraft] K3 - No RF output References: <2113461874.766233.1592219486492.ref@mail.yahoo.com> Message-ID: <2113461874.766233.1592219486492@mail.yahoo.com> I had a problem with no output, but the radio was keying. I reseated all cables going to the synthesizer, and rf output returned. 73, Will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Monday, June 15, 2020, 01:04:50 AM PDT, G4BVH wrote: Hi, I have had a fault develop on my K3 whereby there is no RF being produced. I have emailed the details to Elecraft support and am hoping to receive a reply with suggestions. However, I thought I would also send the details here in case anyone can suggest something to try or investigate further. I have a K3, serial number 6482 which I built from a kit. It has worked flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters fitted and the 100W module but no other additions. A few days ago, it was running 20W of FT8 and I suddenly discovered that it hadn't been transmitting. Everything appeared that it should be transmitting: the red TX LED was lit, it was not in TEST mode (TX not flashing) but there was no RF output displayed on the bar graph and definitely nothing coming out on any mode. There is no RF if I wind down the power below the 10W level, there is the usual relay click going through 12W - 13W and still no RF above this level, ie on towards 100W. The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power level setting and 1.18A on the higher power setting on transmit. The RF output bar graph always displays 1 bar on transmit no matter what the power level? is set but there is no RF coming out. I tried the TX calibration but it fails saying the power level didn't reach that required. The receiver works fine and I can hear the CW side tone and SSB, AM and FM audio monitoring as normal. I have removed and reseated the front panel and also the 3 coax patch leads behind the front panel but this made no difference. There is a yellow LED, D33, on the main board which is lit on receive and goes out on transmit. The latest firmware is installed - I updated this a month or so ago. TX inhibit is OFF and the 20A breaker has not tripped. Any thoughts or suggestions gratefully received. Very many thanks and 73, Peter, G4BVH -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wlbaber at bellsouth.net From w2ljqrp at gmail.com Mon Jun 15 07:39:39 2020 From: w2ljqrp at gmail.com (Larry Makoski) Date: Mon, 15 Jun 2020 07:39:39 -0400 Subject: [Elecraft] NJQRP Skeeter Hunt 2020 Message-ID: Skeeter Hunters! The Ninth Annual NJQRP Skeeter Hunt is set for Sunday, August 16th. A word about Skeeter Hunt numbers as I'm already receiving e-mail requests. Tradition is that Skeeter Hunt numbers are issued as of the First Day of Summer - which this year is NEXT Saturday, June. ONLY e-mail requests sent as of 12:01 AM Saturday EDTwill be honored. "Why/ What difference does it make?" you may well ask yourself. The answer is simple - it gives eveyone interested an equal opportunity to acquire a lower number. To some that's no big deal, but to others it's a very big deal - so everyone gets the same chance. And it also adds another level of participation that keeps YOU in the game, so to speak. Why new numbers every year and not the same one year after year like other contests? Because not everyone can participate each year - family commitments or vacations or other things come up that prevent people from participating. So folks, start pouring in those e-mails to w2ljqrp at gmail.com AFTER Midnight when this coming Friday turns into Saturday, here in NJ. And as always, please, please, PLEASE include your call sign, your name (that you will use when operating) and the State or Province that you will be operating from. Hope to hear from you all real soon! Larry W2LJ NJQRP Skeeter Hunt Contest Manager From wes_n7ws at triconet.org Mon Jun 15 08:08:11 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 15 Jun 2020 05:08:11 -0700 Subject: [Elecraft] K3 - No RF output In-Reply-To: <9C5C94B2-E030-4376-8E4D-78996D38C9CD@elecraft.com> References: <001c01d642eb$94f28d80$bed7a880$@com> <9C5C94B2-E030-4376-8E4D-78996D38C9CD@elecraft.com> Message-ID: <71dea1b5-1c54-c363-a241-557b06a269a4@triconet.org> On 6/15/2020 1:10 AM, Dick Dievendorff wrote: > Is TX test on? > > 73 de Dick, K6KR > >> On Jun 15, 2020, at 01:06, G4BVH wrote: >> >> ?Hi, >> >> >> >> I have had a fault develop on my K3 whereby there is no RF being produced. I >> have emailed the details to Elecraft support and am hoping to receive a >> reply with suggestions. However, I thought I would also send the details >> here in case anyone can suggest something to try or investigate further. >> >> >> >> I have a K3, serial number 6482 which I built from a kit. It has worked >> flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters >> fitted and the 100W module but no other additions. >> >> >> >> A few days ago, it was running 20W of FT8 and I suddenly discovered that it >> hadn't been transmitting. Everything appeared that it should be >> transmitting: the red TX LED was lit,_it was not in TEST mode (TX not flashing)_ but there was no RF output displayed on the bar graph and >> definitely nothing coming out on any mode. There is no RF if I wind down the >> power below the 10W level, there is the usual relay click going through 12W >> - 13W and still no RF above this level, ie on towards 100W. >> >> >> >> The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power >> level setting and 1.18A on the higher power setting on transmit. The RF >> output bar graph always displays 1 bar on transmit no matter what the power >> level is set but there is no RF coming out. >> >> >> >> I tried the TX calibration but it fails saying the power level didn't reach >> that required. >> >> >> >> The receiver works fine and I can hear the CW side tone and SSB, AM and FM >> audio monitoring as normal. >> >> >> >> I have removed and reseated the front panel and also the 3 coax patch leads >> behind the front panel but this made no difference. There is a yellow LED, >> D33, on the main board which is lit on receive and goes out on transmit. >> >> >> >> The latest firmware is installed - I updated this a month or so ago. >> >> >> >> TX inhibit is OFF and the 20A breaker has not tripped. >> >> >> >> Any thoughts or suggestions gratefully received. >> >> >> >> Very many thanks and 73, >> >> >> >> Peter, G4BVH >> >> >> >> From sbudnyjr at yahoo.com Mon Jun 15 08:36:01 2020 From: sbudnyjr at yahoo.com (Steven Budny) Date: Mon, 15 Jun 2020 12:36:01 +0000 (UTC) Subject: [Elecraft] NJQRP Skeeter Hunt 2020 In-Reply-To: References: Message-ID: <236974686.955120.1592224561805@mail.yahoo.com> Count me in.need a number please.kc1acl,Steven? Sent from Yahoo Mail for iPhone On Monday, June 15, 2020, 5:43 AM, Larry Makoski wrote: Skeeter Hunters! The Ninth Annual NJQRP Skeeter Hunt is set for Sunday, August 16th. A word about Skeeter Hunt numbers as I'm already receiving e-mail requests. Tradition is that Skeeter Hunt numbers are issued as of the First Day of Summer - which this year is NEXT Saturday, June. ONLY e-mail requests sent as of 12:01 AM Saturday EDTwill be honored. "Why/ What difference does it make?" you may well ask yourself. The answer is simple - it gives eveyone interested an equal opportunity to acquire a lower number. To some that's no big deal, but to others it's a very big deal - so everyone gets the same chance. And it also adds another level of participation that keeps YOU in the game, so to speak. Why new numbers every year and not the same one year after year like other contests? Because not everyone can participate each year - family commitments or vacations or other things come up that prevent people from participating. So folks, start pouring in those e-mails to w2ljqrp at gmail.com AFTER Midnight when this coming Friday turns into Saturday, here in NJ. And as always, please, please, PLEASE include your call sign, your name (that you will use when operating) and the State or Province that you will be operating from. Hope to hear from you all real soon! Larry W2LJ NJQRP Skeeter Hunt Contest Manager ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to sbudnyjr at yahoo.com From n4zr at comcast.net Mon Jun 15 08:37:39 2020 From: n4zr at comcast.net (N4ZR) Date: Mon, 15 Jun 2020 08:37:39 -0400 Subject: [Elecraft] K3 KIO3 Problem with WSJT-X? Message-ID: I am trying to diagnose a problem with my K3/KIO3 which surfaced during the ARRL VHF contest.? Previously, I had used this setup for hundreds of QSOs on HF. I am using an external Startec USB soundcard.? The KIO3 IN jack is cabled to the speaker output of the soundcard.? The KIO3 OUT jack is cabled to the soundcard's LIN IN jack.? Now here's the problem.? When I transmit with all cables connected, and listen to the monitor on the headphones, I hear a tremendous blast of polyphonic audio so long as the KIO3 OUT line is connected to the soundcard.? If I pull that line from the sound card's LIN IN jack, then the FT8 audio in the monitor sounds completely normal. It seems at least possible that the polyphonic audio bleat is being produced by feedback somehow occurring between LIN IN and LIN OUT on the KIO3.? Two possibilities - either the sound card has failed in this peculiar way, or there is some setting, either in my WIN 10 computer's sound settings or in the K3's settings, that is causing the coupling between LIN IN and LIN out. Any suggestions gratefully received -- 73, Pete N4ZR Check out the Reverse Beacon Network at , now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX cluster. From lists at subich.com Mon Jun 15 08:56:05 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Mon, 15 Jun 2020 08:56:05 -0400 Subject: [Elecraft] K3 KIO3 Problem with WSJT-X? In-Reply-To: References: Message-ID: > It seems at least possible that the polyphonic audio bleat is being > produced by feedback somehow occurring between LIN IN and LIN OUT on > the KIO3. Two possibilities - either the sound card has failed in > this peculiar way, or there is some setting, either in my WIN 10 > computer's sound settings or in the K3's settings, that is causing > the coupling between LIN IN and LIN out. Assuming your USB sound device is *NOT* the Windows Default device: Open the Windows Sound Control Panel, select the USB Sound device, select recording -> Listen and make sure "Listen to this device" is *NOT* checked. Open Windows Sound Control Panel, select the USB Sound device, select playback -> levels and make sure any "microphone" input is muted. > If I pull that line from the sound card's LIN IN jack, then the FT8 > audio in the monitor sounds completely normal. If you pull the line from the sound card's LIN IN jack, there should be *NO AUDIO*. Do you have another sound card connected to the mic input? Is MENU:MIC+LIN = ON? Are you using DATA:DATA_A or are you using USB? 73, ... Joe, W4TV On 2020-06-15 8:37 AM, N4ZR wrote: > I am trying to diagnose a problem with my K3/KIO3 which surfaced during > the ARRL VHF contest.? Previously, I had used this setup for hundreds of > QSOs on HF. > > I am using an external Startec USB soundcard.? The KIO3 IN jack is > cabled to the speaker output of the soundcard.? The KIO3 OUT jack is > cabled to the soundcard's LIN IN jack.? Now here's the problem.? When I > transmit with all cables connected, and listen to the monitor on the > headphones, I hear a tremendous blast of polyphonic audio so long as the > KIO3 OUT line is connected to the soundcard.? If I pull that line from > the sound card's LIN IN jack, then the FT8 audio in the monitor sounds > completely normal. > > It seems at least possible that the polyphonic audio bleat is being > produced by feedback somehow occurring between LIN IN and LIN OUT on the > KIO3.? Two possibilities - either the sound card has failed in this > peculiar way, or there is some setting, either in my WIN 10 computer's > sound settings or in the K3's settings, that is causing the coupling > between LIN IN and LIN out. > > Any suggestions gratefully received > From ny9h at arrl.net Mon Jun 15 09:43:53 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Mon, 15 Jun 2020 09:43:53 -0400 Subject: [Elecraft] K3 - No RF output In-Reply-To: <001c01d642eb$94f28d80$bed7a880$@com> References: <001c01d642eb$94f28d80$bed7a880$@com> Message-ID: DOES k3 xmit ssb with a mic in usb ? what mode ( TXDATA) are you using ... usually when I have that symptom, turns out that computer sound card is NOT putting out TX audio to rig. On 6/15/2020 4:04 AM, G4BVH wrote: > Hi, > > > > I have had a fault develop on my K3 whereby there is no RF being produced. I > have emailed the details to Elecraft support and am hoping to receive a > reply with suggestions. However, I thought I would also send the details > here in case anyone can suggest something to try or investigate further. > > > > I have a K3, serial number 6482 which I built from a kit. It has worked > flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters > fitted and the 100W module but no other additions. > > > > A few days ago, it was running 20W of FT8 and I suddenly discovered that it > hadn't been transmitting. Everything appeared that it should be > transmitting: the red TX LED was lit, it was not in TEST mode (TX not > flashing) but there was no RF output displayed on the bar graph and > definitely nothing coming out on any mode. There is no RF if I wind down the > power below the 10W level, there is the usual relay click going through 12W > - 13W and still no RF above this level, ie on towards 100W. > > > > The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power > level setting and 1.18A on the higher power setting on transmit. The RF > output bar graph always displays 1 bar on transmit no matter what the power > level is set but there is no RF coming out. > > > > I tried the TX calibration but it fails saying the power level didn't reach > that required. > > > > The receiver works fine and I can hear the CW side tone and SSB, AM and FM > audio monitoring as normal. > > > > I have removed and reseated the front panel and also the 3 coax patch leads > behind the front panel but this made no difference. There is a yellow LED, > D33, on the main board which is lit on receive and goes out on transmit. > > > > The latest firmware is installed - I updated this a month or so ago. > > > > TX inhibit is OFF and the 20A breaker has not tripped. > > > > Any thoughts or suggestions gratefully received. > > > > Very many thanks and 73, > > > > Peter, G4BVH > > > > > > > -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From ed.n3cw at gmail.com Mon Jun 15 09:48:55 2020 From: ed.n3cw at gmail.com (Ed G) Date: Mon, 15 Jun 2020 09:48:55 -0400 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: References: Message-ID: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> Folks, I am trying to understand some odd KPA1500 operation on 6 meters. When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level. This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display. As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR. 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way? I do not see this oddity on any other bands. I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. --Ed? -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From K8UT at charter.net Mon Jun 15 10:09:33 2020 From: K8UT at charter.net (Larry (K8UT)) Date: Mon, 15 Jun 2020 14:09:33 +0000 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> References: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> Message-ID: Ed, Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of drive. Suggest you test into a dummy load to see if the problem goes away, which would suggest some issue with power level into the feedline or antenna. -larry (K8UT) ------ Original Message ------ From: "Ed G" To: "elecraft at mailman.qth.net" Sent: 2020-06-15 9:48:55 AM Subject: [Elecraft] KPA1500 Operation on 6 Meters >Folks, > I am trying to understand some odd KPA1500 operation on 6 meters. When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level. This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. > For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display. As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR. 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way? I do not see this oddity on any other bands. > I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. >--Ed? > > > > >-- >This email has been checked for viruses by Avast antivirus software. >https://www.avast.com/antivirus >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to k8ut at charter.net From kt0tt.ham at gmail.com Mon Jun 15 10:29:35 2020 From: kt0tt.ham at gmail.com (A Kiddoo) Date: Mon, 15 Jun 2020 09:29:35 -0500 Subject: [Elecraft] MFJ 1234 Message-ID: <847B8B8D-B4F3-4312-87F1-7AE402119222@gmail.com> Been there done that. In one word - DON?T. RigPi only gives you remote control of VFO. All other radio control is via on/off functions that you have to program in code. Audio is iffy at best using mumble. This thing is a compilation of free software loosely glued together under a slick looking web interface. I sold mine at a $75 loss just to get rid of it. You can setup a Pi with Flrig and other programs and have more control for free. Allen Kiddoo KT0TT From johnboedeker at mac.com Mon Jun 15 10:46:48 2020 From: johnboedeker at mac.com (John Boedeker) Date: Mon, 15 Jun 2020 08:46:48 -0600 Subject: [Elecraft] NJQRP Skeeter Hunt 2020 In-Reply-To: References: Message-ID: Ok ok you have my attention now. What the heck? You lost my on the first Skeeter Hunt reference. What is Skeeter Hunting? I?m a poor lost soul. Just getting back into ham radio. The other day I was fortunate enough to part with my hard earned cash and order a spanking brand new KX3/PX3 shack in a pack loaded to the max. Haven?t got it yet.. I?m ready to rock and roll then comes along Skeeter Hunting. Well, can you educate this old fart? What is Skeeter Hunting? > On Jun 15, 2020, at 5:39 AM, Larry Makoski wrote: > > Skeeter Hunters! > > The Ninth Annual NJQRP Skeeter Hunt is set for Sunday, August 16th. > > A word about Skeeter Hunt numbers as I'm already receiving e-mail requests. > Tradition is that Skeeter Hunt numbers are issued as of the First Day of > Summer - which this year is NEXT Saturday, June. ONLY e-mail requests sent > as of 12:01 AM Saturday EDTwill be honored. > > "Why/ What difference does it make?" you may well ask yourself. The answer > is simple - it gives eveyone interested an equal opportunity to acquire a > lower number. To some that's no big deal, but to others it's a very big > deal - so everyone gets the same chance. And it also adds another level of > participation that keeps YOU in the game, so to speak. > > Why new numbers every year and not the same one year after year like other > contests? Because not everyone can participate each year - family > commitments or vacations or other things come up that prevent people from > participating. > > So folks, start pouring in those e-mails to w2ljqrp at gmail.com AFTER > Midnight when this coming Friday turns into Saturday, here in NJ. And as > always, please, please, PLEASE include your call sign, your name (that you > will use when operating) and the State or Province that you will be > operating from. > > Hope to hear from you all real soon! > > Larry W2LJ > > NJQRP Skeeter Hunt Contest Manager > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to johnboedeker at mac.com From w4sc at windstream.net Mon Jun 15 10:48:19 2020 From: w4sc at windstream.net (w4sc) Date: Mon, 15 Jun 2020 10:48:19 -0400 Subject: [Elecraft] K160RX K2 160 Meter and 2nd Ant Option for sale Message-ID: UNBUILT K160RX K2 160 Meter and 2nd Ant Option kit for sale. Parts inventoried this AM. Complete. You get to build it. Another closet find! $75 includes shipping US. Contact off list for payment options. 73 de Ben W4SC Sent from Mail for Windows 10 From ed.n3cw at gmail.com Mon Jun 15 10:57:32 2020 From: ed.n3cw at gmail.com (Ed G) Date: Mon, 15 Jun 2020 10:57:32 -0400 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: References: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> Message-ID: <5ee78c5c.1c69fb81.24db9.faca@mx.google.com> Hi Larry, Yes, exact same problem is there with a known good dummy load in place of the Steppir yagi I normally use. --Ed? Sent from Mail for Windows 10 From: Larry (K8UT) Sent: Monday, June 15, 2020 10:09 AM To: Ed G; elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters Ed, Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of drive. Suggest you test into a dummy load to see if the problem goes away, which would suggest some issue with power level into the feedline or antenna. -larry (K8UT) ------ Original Message ------ From: "Ed G" To: "elecraft at mailman.qth.net" Sent: 2020-06-15 9:48:55 AM Subject: [Elecraft] KPA1500 Operation on 6 Meters >Folks, > I am trying to understand some odd KPA1500 operation on 6 meters. When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level. This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. > For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display. As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR. 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way? I do not see this oddity on any other bands. > I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. >--Ed? > > > > >-- >This email has been checked for viruses by Avast antivirus software. >https://www.avast.com/antivirus >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to k8ut at charter.net From ardrhi at gmail.com Mon Jun 15 11:08:08 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Mon, 15 Jun 2020 11:08:08 -0400 Subject: [Elecraft] NJQRP Skeeter Hunt 2020 In-Reply-To: References: Message-ID: It's a QRP contest, John. Here's a webpage: http://w2lj.blogspot.com/p/njqrp-skeeter-hunt.html I'll have to read about this, but I may be interested myself, so I should probably get my request for a number in. -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Mon, Jun 15, 2020 at 10:48 AM John Boedeker via Elecraft < elecraft at mailman.qth.net> wrote: > Ok ok you have my attention now. What the heck? You lost my on the first > Skeeter Hunt reference. What is Skeeter Hunting? I?m a poor lost soul. > Just getting back into ham radio. The other day I was fortunate enough to > part with my hard earned cash and order a spanking brand new KX3/PX3 shack > in a pack loaded to the max. Haven?t got it yet.. I?m ready to rock and > roll then comes along Skeeter Hunting. Well, can you educate this old > fart? What is Skeeter Hunting? > > On Jun 15, 2020, at 5:39 AM, Larry Makoski wrote: > > > > Skeeter Hunters! > > > > The Ninth Annual NJQRP Skeeter Hunt is set for Sunday, August 16th. > > > > A word about Skeeter Hunt numbers as I'm already receiving e-mail > requests. > > Tradition is that Skeeter Hunt numbers are issued as of the First Day of > > Summer - which this year is NEXT Saturday, June. ONLY e-mail requests > sent > > as of 12:01 AM Saturday EDTwill be honored. > > > > "Why/ What difference does it make?" you may well ask yourself. The > answer > > is simple - it gives eveyone interested an equal opportunity to acquire a > > lower number. To some that's no big deal, but to others it's a very big > > deal - so everyone gets the same chance. And it also adds another level > of > > participation that keeps YOU in the game, so to speak. > > > > Why new numbers every year and not the same one year after year like > other > > contests? Because not everyone can participate each year - family > > commitments or vacations or other things come up that prevent people from > > participating. > > > > So folks, start pouring in those e-mails to w2ljqrp at gmail.com AFTER > > Midnight when this coming Friday turns into Saturday, here in NJ. And as > > always, please, please, PLEASE include your call sign, your name (that > you > > will use when operating) and the State or Province that you will be > > operating from. > > > > Hope to hear from you all real soon! > > > > Larry W2LJ > > > > NJQRP Skeeter Hunt Contest Manager > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to johnboedeker at mac.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com From w2kj at bellsouth.net Mon Jun 15 11:12:57 2020 From: w2kj at bellsouth.net (Joseph Trombino, Jr) Date: Mon, 15 Jun 2020 11:12:57 -0400 Subject: [Elecraft] K4 cables References: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB.ref@bellsouth.net> Message-ID: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB@bellsouth.net> Howdy Gang. Does anyone know if the K4 will ship with an Ethernet cable? 73, Joe W2KJ I QRP, therefore I am From ken.bolin at snet.net Mon Jun 15 11:29:48 2020 From: ken.bolin at snet.net (Ken Bolin) Date: Mon, 15 Jun 2020 11:29:48 -0400 Subject: [Elecraft] K3S - No high power output - Low power OK References: <0E01CC6558C94A2DAB0099E94CCC1F7E.ref@DESKTOP6VV9J0F> Message-ID: <0E01CC6558C94A2DAB0099E94CCC1F7E@DESKTOP6VV9J0F> My K3S is about 3 years old and is S/N 11185. It has operated flawlessly since it got out of the box. I was using it this weekend in the VHF contest and operated perfectly until Sunday afternoon. I took a break for dinner and came back about two hours later and found that I had no power output. The radio was left on during that time. There was no indication that there was a power surge of any kind and there was no smell of anything electrical. Since I wasn't transmitting during that time, there was no SWR issue. After doing some initial troubleshooting, I found that the rig worked perfectly at low power but when I go above 9 watts (12 watts on HF) I get no output. The display indicates two dashes where the SWR is displayed and the power indicates 0.0 W. When I try to transmit with higher power, the red TX light comes on steady and the K3S also keys my amplifier properly. I've tried it on several bands with the same results. The only other thing of interest is that when I came back to the rig after dinner, the rig tried to transmit in CW while receiving in TX Data. I did not leave it in that configuration. That may indicate that something my have happened with the S/W settings. Any suggestions of where to start looking Thanks Ken W1NG w1ng at snet.net From ben.gelb at gmail.com Mon Jun 15 11:59:22 2020 From: ben.gelb at gmail.com (Ben Gelb) Date: Mon, 15 Jun 2020 08:59:22 -0700 Subject: [Elecraft] [K3S] intermittent RF path interruption In-Reply-To: References: <00F96F4E-A3BC-47EA-B124-4662D42EF9A7@widomaker.com> Message-ID: Just to close the loop. Elecraft (Keith, WE6R) confirmed that this issue has been observed on other units. The design problem leading to this issue was corrected in the layout of Rev E of the KPA3A (I have Rev D, which is affected by the problem). He indicated additionally that while R5 has been observed to fail, R6 and R12 have not been (even though they have the same mechanical mismatch as R5). Moving over R5 to borrow from the copper pad near C17 was his recommendation to fix the issue (similar to what I did). 73, Ben On Thu, Apr 30, 2020 at 10:19 PM Ben Gelb wrote: > > And now the exciting conclusion.... > > I decided the most likely spot for the problem to exist was in the T/R > switching circuit in the KPA3A. Schematic on pg. 46 of > https://ftp.elecraft.com/K3S/Manuals%20Downloads/E740323%20K3s%20Schematic%20Files.pdf. > > I removed the KPA3A to take some pictures and figure out how to probe > some points of interest, then re-installed it, and took following > measurements: > > Drain of Q4 - 0.25V during RX, 122V during TX > Drain of Q6 - 13.7V during RX, 0.24V during TX > > ... so far seems reasonable ... > > Measured both sides of L3 and saw 7.42V during RX. Also seems reasonable. > Then measured both sides of L1 and saw that it appeared to be floating... hmmmm. > > L1 and L3 should basically see identical voltages during RX. L1 should > not be floating. This means that there's no DC voltage being applied > to D2 or D5 anode. That would mean no connection from antenna input to > either PA output or RX path. Fits the problem description. > > I took the KPA3A back out again and did some continuity checking. > Shortly I was able to discover that one of the ends of R5 (facing L1) > had a failed solder joint to the PCB. When I touched it with the > probe, the bad end actually came completely free and lifted up off of > the PCB. After starting at it for another minute, I realized that > there is a mismatch between the component package size and the > footprint on the PCB. The pad spacing on the PCB is too narrow, and > even when perfectly centered, there is almost no overlap of the > package pins on the resistor and the solder pads that it is supposed > to attach to. This is also true of R6 and R12 (though they seem to be > connected, at least for now - though notably R12 has a green wire > attached to one end). > > This seems like an assembly defect. Doesn't seem very surprising that > with a poor mechanical connection that the solder joint would not hang > on. Maybe it can (or already has been in a later run?) be corrected by > selecting a resistor that has a package that matches the PCB > footprint? Seems likely to me that more KPA3As out there would fail > similarly. > > I noted by contrast that R18 uses the same package as the R5, R6 and > R12 components, but appears to have a PCB footprint that correctly > aligns with the component. > > Anyhow, I removed R5 and soldered it back on (turning it at a slight > angle, and borrowing the nearby pad of C17 to ensure it had a good > solder connection). Now all seems to be well again. Hear lots of > signals on RX w/ amp inline an make power out on TX. Hooray! > > Here are a few pix of the adventure. Hopefully they might be helpful > to someone else. > https://drive.google.com/drive/folders/1kP9cR6HbBqP1Xy35QOOd945Bm2KgYW7T > > 73, > Ben N1VF > > On Thu, Apr 30, 2020 at 8:07 AM Ben Gelb wrote: > > > > I realized that the "Tune" wattage was set high enough to always > > switch the PA in, even when the power was dialed down to <12W. > > > > With that corrected, I now see consistent behavior. > > > > When KPA3 gets into "bad" state, I see no power out and hear no signal > > on receive. Dialing the power down to <12W results in the "clack" of > > the KPA3 bypass relays and immediately restores operation (albeit at > > QRP levels). Dialing the power up and down across the 12W mark makes > > the receive go in and out (no receive w/ KPA3 inline). Turning power > > on and off does not clear the fault - still persists after it comes > > back up. It does eventually resolve itself though and operate normally > > for a while. But have yet to determine a reliable means to "fix" it on > > demand. > > > > But it is clearly a problem in the KPA3 and not the base K3S, since > > all is cured once the KPA3 is bypassed. > > > > I have now reproduced this on multiple HF bands as well, so not just a > > six meter problem. > > > > I started digging into the schematics. T/R circuit in the KPA3 seems > > like the obvious place to start. Though I can't really see how a > > single component failure in there would cause what I'm describing (in > > particular the "memory" effect that causes the problem to manifest for > > a while and then go away). > > > > I probed the 7T and 7R voltages on connector P68A (easily accessible > > w/ top lid removed from rig). Looks fine - about 6V on either when in > > TX or RX, respectively, and ~0.3V when complemented. Also confirmed 5V > > is present on appropriate pins of P68A and 13.8V is present on P68B. > > > > I'd like to probe further on the PA board (while installed, so can see > > what is going on), but while there are many exposed vias visible with > > the K3S lid off, the silkscreen side is not visible when the module is > > installed. So its hard to figure out what to probe. Does anyone have > > access to board layout images, or otherwise a guide to what to > > probepoints are available on the heatsink side (which faces up when > > module installed) of the PCB? If not I suppose next step is to pull > > the board out and try to map it out manually when I have a bit more > > time, but hoping to save that step. > > > > For reference, schematic of interest is on pg. 46, here: > > https://ftp.elecraft.com/K3S/Manuals%20Downloads/E740323%20K3s%20Schematic%20Files.pdf > > > > Thanks, > > Ben N1VF > > > > On Thu, Apr 16, 2020 at 11:30 AM Ben Gelb wrote: > > > > > > Thanks all for the replies. > > > > > > - I saw the same issue on ANT 1 as ANT 2. > > > - Haven't dug out a dummy load yet... still TODO. > > > > > > New clue: Dialing the power down to 8W fixes the RX path (can go back and forth across this boundary and hear the RX go in and out, coincident w/ a relay click), but *not* the TX path when in a bad state. So I will still see 0W out when set to low power. Still have to switch to another band and transmit to "unstick" the TX path. > > > > > > So I take this to mean that: > > > - With high power out, both RX and TX path are impacted by the issue. > > > - With low power out (<8W, PA clicked out), the problem no longer seems to be in the RX path (but is still in the TX path). > > > > > > When I have a bit more time will look at the schematics and see if I can reason about what might be happening.. feels like this should narrow it down pretty far. But posting the update in case it spurs any new thoughts. > > > > > > Ben, N1VF > > > > > > On Sun, Apr 12, 2020 at 1:03 PM Nr4c wrote: > > >> > > >> Well first I?d try with a ?dummy? load. > > >> > > >> The swap antenna to Ant 1. > > >> > > >> Sent from my iPhone > > >> ...nr4c. bill > > >> > > >> > > >> > On Apr 12, 2020, at 3:23 PM, Ben Gelb wrote: > > >> > > > >> > ?A bit of a mystery w/ my K3S and I could use help figuring out what the > > >> > problem might be. > > >> > > > >> > Background: I have had the radio parked on 6m for several weeks (HF antenna > > >> > temporarily out of commission) and have left it running (receive) for > > >> > extended periods. > > >> > > > >> > Recently, I have noticed that when I do sit down and try to operate, the > > >> > radio will get into a mode where during TX the rig will indicate 0W forward > > >> > power during transmit. Following this zero power TX, the RX will also go > > >> > quiet. Then seems to stay that way for some time (not clear to me what > > >> > makes it clear up... or if it ever does if left alone). > > >> > > > >> > Some experiments I have done to try to figure out what is wrong: > > >> > - Hitting the tune button also shows 0 power (instead of usual 10-15W) when > > >> > radio gets stuck in this state. > > >> > - Dialing the power down to where I hear the 100W PA switch out of line > > >> > (relay click... around 8.0W) seems to immediate restore receive and also > > >> > causes the rig to make power again on transmit. But when I turn it back > > >> > past 8.0W, it appears to go back right back into the bad state (so suggests > > >> > whatever the issue is, is in the 100W PA module). > > >> > - Switching to another band and transmitting momentarily (think I tried > > >> > 15m) will sometimes knock the radio out of this "bad" mode. But going back > > >> > to 6 meters will eventually cause it to happen again. Usually pretty > > >> > quickly (several seconds of TX). > > >> > > > >> > Some other notes: > > >> > - Antenna always measures 1.1:1 on the K3S display (when TX working > > >> > correctly). Also checked w/ RigExpert. I don't think the antenna is the > > >> > issue. > > >> > - All my observations have only really been on ANT2 port (nothing connected > > >> > to ANT1 presently). > > >> > - Haven't really exhaustively tried to test band dependence of the behavior > > >> > because I don't have an antenna on the other bands at the moment and not > > >> > wild about trying to transmit into a big mismatch. So although it appears > > >> > 6m related based on my observations, that might not be exactly > > >> > representative of whats going on. > > >> > > > >> > Posting here in case I've given enough clues for someone to suggest what > > >> > may be wrong or how to narrow down further. > > >> > > > >> > Thanks, > > >> > Ben N1VF > > >> > ______________________________________________________________ > > >> > Elecraft mailing list > > >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > >> > Help: http://mailman.qth.net/mmfaq.htm > > >> > Post: mailto:Elecraft at mailman.qth.net > > >> > > > >> > This list hosted by: http://www.qsl.net > > >> > Please help support this email list: http://www.qsl.net/donate.html > > >> > Message delivered to nr4c at widomaker.com From ben at gelbnet.com Mon Jun 15 12:05:49 2020 From: ben at gelbnet.com (Ben Gelb) Date: Mon, 15 Jun 2020 09:05:49 -0700 Subject: [Elecraft] K3S - No high power output - Low power OK In-Reply-To: <0E01CC6558C94A2DAB0099E94CCC1F7E@DESKTOP6VV9J0F> References: <0E01CC6558C94A2DAB0099E94CCC1F7E.ref@DESKTOP6VV9J0F> <0E01CC6558C94A2DAB0099E94CCC1F7E@DESKTOP6VV9J0F> Message-ID: Hi Ken - I had a similar issue with my K3S in May (SN 11272 - very similar age). I detailed it in this thread: http://mailman.qth.net/pipermail/elecraft/2020-May/275684.html It ended up that R5 on the KPA3A board (part of QSK T/R switching circuit) had a broken solder connection due to the fact that the component does not match the footprint mechanically on the PCB, and so a solid connection is basically impossible (Elecraft confirmed this was a problem with Rev D of the KPA3A, which I have, and that it was corrected in Rev E). I was able to fix it by moving the component slightly to borrow some PCB copper from an adjacent component. In my case I found that the problem affected transmit (as you describe) but also receive. If I dialed the power knob up and down across the low/high power threshold while listening on a busy band, I'd hear all the noise go quiet when I moved to high power and the PA switched in. It was also intermittent, at least initially - I guess thermal heating/cooling made the bad connection go in and out. So this may be a good debugging step to try to determine if it is the same problem. Good luck debugging your issue. I will be interested to learn if it is the same problem. 73, Ben On Mon, Jun 15, 2020 at 8:30 AM Ken Bolin wrote: > > My K3S is about 3 years old and is S/N 11185. It has operated flawlessly > since it got out of the box. > > > > I was using it this weekend in the VHF contest and operated perfectly until > Sunday afternoon. I took a break for dinner and came back about two hours > later and found that I had no power output. The radio was left on during > that time. There was no indication that there was a power surge of any kind > and there was no smell of anything electrical. Since I wasn't transmitting > during that time, there was no SWR issue. > > > > After doing some initial troubleshooting, I found that the rig worked > perfectly at low power but when I go above 9 watts (12 watts on HF) I get no > output. The display indicates two dashes where the SWR is displayed and the > power indicates 0.0 W. When I try to transmit with higher power, the red TX > light comes on steady and the K3S also keys my amplifier properly. I've > tried it on several bands with the same results. > > > > The only other thing of interest is that when I came back to the rig after > dinner, the rig tried to transmit in CW while receiving in TX Data. I did > not leave it in that configuration. That may indicate that something my have > happened with the S/W settings. > > > > Any suggestions of where to start looking > > > > Thanks > > Ken W1NG > > w1ng at snet.net > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ben.gelb at gmail.com From n4zr at comcast.net Mon Jun 15 12:21:32 2020 From: n4zr at comcast.net (N4ZR) Date: Mon, 15 Jun 2020 12:21:32 -0400 Subject: [Elecraft] Problem found - sound card in the trash Message-ID: <18488005-c7ff-9893-d32d-08a723adf4d1@comcast.net> It was, after all, my >10 year old Encore USB sound card - now sold by Star Tech - that was causing the problem -- 73, Pete N4ZR Check out the Reverse Beacon Network at , now spotting RTTY activity worldwide. For spots, please use your favorite "retail" DX cluster. From mikefurrey at att.net Sun Jun 14 10:58:21 2020 From: mikefurrey at att.net (Mike Furrey) Date: Sun, 14 Jun 2020 14:58:21 +0000 (UTC) Subject: [Elecraft] White noise on K3transmit References: <1882509803.507716.1592146701006.ref@mail.yahoo.com> Message-ID: <1882509803.507716.1592146701006@mail.yahoo.com> I just set up to operate in the 6 meter contest and after no contacts, trying with two different microphones (first the Elecraft mic, then a Heil mic) on the front panel, a check with a local said he only hears white noise when I transmit. I am missing something. I am transmitting into a 2 element quad. Both the K3 meter and Daiwa meter shows 1.2 SWR and Forward power out varies with my speech. I switched radios to Icom 7200 and I am well heard. So, I am missing something. I scrolled through the menu and did not see anything obvious. Any help please? 73, Mike WA5POK From k3 at hollywoodtitle.com Mon Jun 15 12:30:06 2020 From: k3 at hollywoodtitle.com (Eric KG6MZS) Date: Mon, 15 Jun 2020 09:30:06 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? Message-ID: Hello All, I just scanned the archives for recommendations on a good external USB audio interface for sound card digital. In 2017 Jim (K9YC) recommended two (ASUS and Newmark) that are no longer available. What are the current favs that are out there now? TIA, Eric KG6MZS > > Buy the ASUS or the Numark here. > > https://www.bhphotovideo.com/c/search?Ntt=asus%20u5&N=0&InitialSearch=yes&sts=ma&Top+Nav-Search= > > https://www.bhphotovideo.com/c/product/639303-REG/Numark_STEREO%7CIO_Stereo_iO_USB.html > > 73, Jim K9YC From donwilh at embarqmail.com Mon Jun 15 13:06:10 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 15 Jun 2020 13:06:10 -0400 Subject: [Elecraft] White noise on K3transmit In-Reply-To: <1882509803.507716.1592146701006@mail.yahoo.com> References: <1882509803.507716.1592146701006.ref@mail.yahoo.com> <1882509803.507716.1592146701006@mail.yahoo.com> Message-ID: <768840dc-f73f-7db3-c0b3-f6e8fb8931d9@embarqmail.com> Mike, Start your investigation simply: Look at the deflection on the ALC meter. If you do not have 5 to 7 bars flashing on voice peaks, you are not driving the audio enough. 73, Don W3FPR On 6/14/2020 10:58 AM, Mike Furrey wrote: > I just set up to operate in the 6 meter contest and after no contacts, trying with two different microphones (first the Elecraft mic, then a Heil mic) on the front panel, a check with a local said he only hears white noise when I transmit. I am missing something. I am transmitting into a 2 element quad. Both the K3 meter and Daiwa meter shows 1.2 SWR and Forward power out varies with my speech. I switched radios to Icom 7200 and I am well heard. > From ns9i at bayland.net Mon Jun 15 13:45:41 2020 From: ns9i at bayland.net (NS9I WI) Date: Mon, 15 Jun 2020 12:45:41 -0500 Subject: [Elecraft] FS Remote Rig Setup RRC-1258 MkII In-Reply-To: <768840dc-f73f-7db3-c0b3-f6e8fb8931d9@embarqmail.com> References: <1882509803.507716.1592146701006.ref@mail.yahoo.com> <1882509803.507716.1592146701006@mail.yahoo.com> <768840dc-f73f-7db3-c0b3-f6e8fb8931d9@embarqmail.com> Message-ID: <6755ef57-a41c-d6c6-1687-ceafc27c58f2@bayland.net> *I have two RRC's with all the cables, one remote and one control unit. These are setup for remoteing two K3's locally or across the world. The control unit has the WIFI board installed. All the information is available on the internet. $400 shipped USPS Priority Mail Conus - PayPal or USPS Money Order preferred. * From wunder at wunderwood.org Mon Jun 15 14:07:30 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Mon, 15 Jun 2020 11:07:30 -0700 Subject: [Elecraft] NJQRP Skeeter Hunt 2020 In-Reply-To: References: Message-ID: <9526D66B-37DA-489D-8EBD-7EDD8A8D1EF3@wunderwood.org> Let me Google that for you. NJQRP Skeeter Hunt Yes, the announcement was totally mysterious with no links to helpful information. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 15, 2020, at 7:46 AM, John Boedeker via Elecraft wrote: > > Ok ok you have my attention now. What the heck? You lost my on the first Skeeter Hunt reference. What is Skeeter Hunting? I?m a poor lost soul. Just getting back into ham radio. The other day I was fortunate enough to part with my hard earned cash and order a spanking brand new KX3/PX3 shack in a pack loaded to the max. Haven?t got it yet.. I?m ready to rock and roll then comes along Skeeter Hunting. Well, can you educate this old fart? What is Skeeter Hunting? >> On Jun 15, 2020, at 5:39 AM, Larry Makoski wrote: >> >> Skeeter Hunters! >> >> The Ninth Annual NJQRP Skeeter Hunt is set for Sunday, August 16th. >> >> A word about Skeeter Hunt numbers as I'm already receiving e-mail requests. >> Tradition is that Skeeter Hunt numbers are issued as of the First Day of >> Summer - which this year is NEXT Saturday, June. ONLY e-mail requests sent >> as of 12:01 AM Saturday EDTwill be honored. >> >> "Why/ What difference does it make?" you may well ask yourself. The answer >> is simple - it gives eveyone interested an equal opportunity to acquire a >> lower number. To some that's no big deal, but to others it's a very big >> deal - so everyone gets the same chance. And it also adds another level of >> participation that keeps YOU in the game, so to speak. >> >> Why new numbers every year and not the same one year after year like other >> contests? Because not everyone can participate each year - family >> commitments or vacations or other things come up that prevent people from >> participating. >> >> So folks, start pouring in those e-mails to w2ljqrp at gmail.com AFTER >> Midnight when this coming Friday turns into Saturday, here in NJ. And as >> always, please, please, PLEASE include your call sign, your name (that you >> will use when operating) and the State or Province that you will be >> operating from. >> >> Hope to hear from you all real soon! >> >> Larry W2LJ >> >> NJQRP Skeeter Hunt Contest Manager >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to johnboedeker at mac.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From brian at elecraft.com Mon Jun 15 14:44:59 2020 From: brian at elecraft.com (Brian Broggie) Date: Mon, 15 Jun 2020 11:44:59 -0700 Subject: [Elecraft] K4 cables In-Reply-To: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB@bellsouth.net> References: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB.ref@bellsouth.net> <53A2D8B5-2592-4AEF-ACF2-A69524F003FB@bellsouth.net> Message-ID: Hi, Joseph! Our plan is to have a 10' shielded ethernet cable available on our website as a K4 option. Thanks for asking! Brian Broggie K4 Program Manager at Elecraft, Inc. Address Watsonville, CA Phone (831) 763-4211 <(831) 763-4211> Mobile (831) 601-6983 <(831) 601-6983> Email brian at elecraft.com Website www.elecraft.com On Mon, Jun 15, 2020 at 8:14 AM Joseph Trombino, Jr wrote: > Howdy Gang. > > Does anyone know if the K4 will ship with an Ethernet cable? > > 73, Joe W2KJ > I QRP, therefore I am > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to brian at elecraft.com > From neilz at techie.com Mon Jun 15 14:47:53 2020 From: neilz at techie.com (Neil Zampella) Date: Mon, 15 Jun 2020 14:47:53 -0400 Subject: [Elecraft] K4 cables In-Reply-To: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB@bellsouth.net> References: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB.ref@bellsouth.net> <53A2D8B5-2592-4AEF-ACF2-A69524F003FB@bellsouth.net> Message-ID: <95b4986e-a1ce-5876-d373-41d95e95c75e@techie.com> Probably not .. but you can get CAT6 cable (which will work with CAT5 connections) at Amazon at various cable lengths if you don't have one lying around. https://tinyurl.com/ycrsycwg Neil, KN3ILZ On 6/15/2020 11:12 AM, Joseph Trombino, Jr wrote: > Howdy Gang. > > Does anyone know if the K4 will ship with an Ethernet cable? > > 73, Joe W2KJ > I QRP, therefore I am > -- This email has been checked for viruses by AVG. https://www.avg.com From keith at elecraft.com Mon Jun 15 14:54:34 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Mon, 15 Jun 2020 11:54:34 -0700 Subject: [Elecraft] Firmware, K3, large jump AB3JN In-Reply-To: References: Message-ID: <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> Hi Joe; That is a HUGE jump! ( from 1.96 to 5.67. The oldest I have seen come in was 1.30!!) It is rare, but I have seen a glitch or two in extreme jumps. One is the ADC REF gets set to an invalid voltage of 4.00 which is OUT of RANGE!! Also any saved configs you might load could be an issue if you re-load. I can send you some in-between FW, but it is a LOT OF WORK and is NO guarantee that glitch won't happen. Is there some feature that you are specifically avoiding?? If you don't go with the latest, the Manual etc will not match, nor would any discussion with CS or other folks that are current. Reading the release notes is an excellent idea if you want to look for something specific, or ask me or CS. I *HIGHLY* recommend loading the latest FW and then after do a "Parameter RESET", (EE-INIT-ialization), and then setup and calibrate from SCRATCH. (IE don't load an old config). **That is what I do in repairs (after checking with customer) for such a large jump in FW. Also, that old of a radio will need gold pins and MANY hardware updates, feel free to send it in so I can get my hands on it, hi hi! Keith WE6R, Elecraft K3 Tech From ki4lys at msn.com Mon Jun 15 15:07:58 2020 From: ki4lys at msn.com (Joseph McIntire) Date: Mon, 15 Jun 2020 19:07:58 +0000 Subject: [Elecraft] Firmware, K3, large jump AB3JN In-Reply-To: <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> References: , <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> Message-ID: Yes that is what happened I just loaded the latest FW the mcu and FPF firmware update went well but when it loaded the DSP when it restarted the radio for some reason it didn't recognize the 2.88 version it had just installed. You know question marks ??.?? For the installed version for the DSP. The others look ok. And I get the ERR AT3. I have not searched yet for other trouble codes. I am at work right now. I will look at it again when I get home. I have been going through the release notes but there is a lot to go through. I will look into the parameter reset also. I will let you know how it goes. Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 1:54:34 PM To: elecraft at mailman.qth.net ; ki4lys at msn.com ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN Hi Joe; That is a HUGE jump! ( from 1.96 to 5.67. The oldest I have seen come in was 1.30!!) It is rare, but I have seen a glitch or two in extreme jumps. One is the ADC REF gets set to an invalid voltage of 4.00 which is OUT of RANGE!! Also any saved configs you might load could be an issue if you re-load. I can send you some in-between FW, but it is a LOT OF WORK and is NO guarantee that glitch won't happen. Is there some feature that you are specifically avoiding?? If you don't go with the latest, the Manual etc will not match, nor would any discussion with CS or other folks that are current. Reading the release notes is an excellent idea if you want to look for something specific, or ask me or CS. I *HIGHLY* recommend loading the latest FW and then after do a "Parameter RESET", (EE-INIT-ialization), and then setup and calibrate from SCRATCH. (IE don't load an old config). **That is what I do in repairs (after checking with customer) for such a large jump in FW. Also, that old of a radio will need gold pins and MANY hardware updates, feel free to send it in so I can get my hands on it, hi hi! Keith WE6R, Elecraft K3 Tech From tjerhardt at sbcglobal.net Mon Jun 15 15:17:53 2020 From: tjerhardt at sbcglobal.net (Terry Erhardt) Date: Mon, 15 Jun 2020 12:17:53 -0700 Subject: [Elecraft] K3S & Panodapter References: Message-ID: I am looking for a K3S and P3, for sale. Thanks W8TJE From keith at elecraft.com Mon Jun 15 15:19:54 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Mon, 15 Jun 2020 12:19:54 -0700 Subject: [Elecraft] Firmware, K3, large jump AB3JN In-Reply-To: References: <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> Message-ID: At this point, I would do the reset, then set RS232 to 38400 to continue on with the DSP load. (reset puts it at 4800 which is SLOW). Then Reset again after FP & DSP have loaded, if you have a sub, you will have to turn it on in config menu, then cycle power, then load DSP2. Then a reset again after all FW is loaded. Then you will have to setup filters, options and do the TX gain cal. The K3 kit build manual has all of that. It will give you confidence you have a clean start. Let us know ... Don't forget to do a new configuration save when it is all setup!! (should you ever have to "go back"). Keith WE6R Elecraft Tech. On 6/15/2020 12:07 PM, Joseph McIntire wrote: > Yes that is what happened I just loaded the latest FW the mcu and > FPF firmware update went well but when it loaded the DSP when it > restarted the radio for some reason it didn't recognize the 2.88 > version it had just installed. You know question marks ??.?? For the > installed version for the DSP. The others look ok. And I get the > ERR AT3. I have not searched yet for other trouble codes. I am at > work right now. I will look at it again when I get home. I have > been going through the release notes but there is a lot to go > through. I will look into the parameter reset also. I will let you > know how it goes. > > Sent from my Verizon, Samsung Galaxy smartphone > > ------------------------------------------------------------------------ > *From:* Keith Trinity WE6R > *Sent:* Monday, June 15, 2020 1:54:34 PM > *To:* elecraft at mailman.qth.net ; > ki4lys at msn.com ; support at elecraft.com > > *Subject:* Re: [Elecraft] Firmware, K3, large jump AB3JN > Hi Joe; > That is a HUGE jump! ( from 1.96 to 5.67. The oldest I have seen come in > was 1.30!!) > It is rare, but I have seen a glitch or two in extreme jumps. > One is the ADC REF gets set to an invalid voltage of 4.00 which is OUT > of RANGE!! > Also any saved configs you might load could be an issue if you re-load. > > I can send you some in-between FW, but it is a LOT OF WORK and is NO > guarantee that glitch won't happen. > Is there some feature that you are specifically avoiding?? > If you don't go with the latest, the Manual etc will not match, nor > would any discussion with CS or other folks that are current. > Reading the release notes is an excellent idea if you want to look for > something specific, or ask me or CS. > > I *HIGHLY* recommend loading the latest FW and then after do a > "Parameter RESET", (EE-INIT-ialization), and then setup and calibrate > from SCRATCH. > (IE don't load an old config). > **That is what I do in repairs (after checking with customer) for such a > large jump in FW. > Also, that old of a radio will need gold pins and MANY hardware updates, > feel free to send it in so I can get my hands on it, hi hi! > Keith WE6R, Elecraft K3 Tech > > From pubx1 at af2z.net Mon Jun 15 15:24:38 2020 From: pubx1 at af2z.net (Drew AF2Z) Date: Mon, 15 Jun 2020 15:24:38 -0400 Subject: [Elecraft] K4 cables In-Reply-To: <95b4986e-a1ce-5876-d373-41d95e95c75e@techie.com> References: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB.ref@bellsouth.net> <53A2D8B5-2592-4AEF-ACF2-A69524F003FB@bellsouth.net> <95b4986e-a1ce-5876-d373-41d95e95c75e@techie.com> Message-ID: Cables can also be assembled without need of special tools. There are lots of options for shielding (check out the various FTP and UTP varieties), outdoor jacketing, buriable, etc., plus any custom length you might want to make up. 73, Drew AF2Z On 06/15/20 13:47, Neil Zampella wrote: > Probably not .. but you can get CAT6 cable (which will work with CAT5 > connections) at Amazon at various cable lengths if you don't have one > lying around. > > https://tinyurl.com/ycrsycwg > > Neil, KN3ILZ > > On 6/15/2020 11:12 AM, Joseph Trombino, Jr wrote: >> Howdy Gang. >> >> Does anyone know if the K4 will ship with an Ethernet cable? >> >> ??????????? 73, Joe W2KJ >> ??????????? I QRP, therefore I am >> > > -- > This email has been checked for viruses by AVG. > https://www.avg.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pubx1 at af2z.net From ki4lys at msn.com Mon Jun 15 15:27:34 2020 From: ki4lys at msn.com (Joseph McIntire) Date: Mon, 15 Jun 2020 19:27:34 +0000 Subject: [Elecraft] Firmware, K3, large jump AB3JN In-Reply-To: References: <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> , Message-ID: Ok wel will do that. I do not have the sub receiver so that makes it a little easier. I still have all the original paper work and manuals. I was going to print the latest manuals tonight. I know that there's options in there I don't have but most the functions updated by firmware should be in there. Thank you for your assistance Joe AB3JN Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 2:19:54 PM To: Joseph McIntire ; elecraft at mailman.qth.net ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN At this point, I would do the reset, then set RS232 to 38400 to continue on with the DSP load. (reset puts it at 4800 which is SLOW). Then Reset again after FP & DSP have loaded, if you have a sub, you will have to turn it on in config menu, then cycle power, then load DSP2. Then a reset again after all FW is loaded. Then you will have to setup filters, options and do the TX gain cal. The K3 kit build manual has all of that. It will give you confidence you have a clean start. Let us know ... Don't forget to do a new configuration save when it is all setup!! (should you ever have to "go back"). Keith WE6R Elecraft Tech. On 6/15/2020 12:07 PM, Joseph McIntire wrote: Yes that is what happened I just loaded the latest FW the mcu and FPF firmware update went well but when it loaded the DSP when it restarted the radio for some reason it didn't recognize the 2.88 version it had just installed. You know question marks ??.?? For the installed version for the DSP. The others look ok. And I get the ERR AT3. I have not searched yet for other trouble codes. I am at work right now. I will look at it again when I get home. I have been going through the release notes but there is a lot to go through. I will look into the parameter reset also. I will let you know how it goes. Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 1:54:34 PM To: elecraft at mailman.qth.net ; ki4lys at msn.com ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN Hi Joe; That is a HUGE jump! ( from 1.96 to 5.67. The oldest I have seen come in was 1.30!!) It is rare, but I have seen a glitch or two in extreme jumps. One is the ADC REF gets set to an invalid voltage of 4.00 which is OUT of RANGE!! Also any saved configs you might load could be an issue if you re-load. I can send you some in-between FW, but it is a LOT OF WORK and is NO guarantee that glitch won't happen. Is there some feature that you are specifically avoiding?? If you don't go with the latest, the Manual etc will not match, nor would any discussion with CS or other folks that are current. Reading the release notes is an excellent idea if you want to look for something specific, or ask me or CS. I *HIGHLY* recommend loading the latest FW and then after do a "Parameter RESET", (EE-INIT-ialization), and then setup and calibrate from SCRATCH. (IE don't load an old config). **That is what I do in repairs (after checking with customer) for such a large jump in FW. Also, that old of a radio will need gold pins and MANY hardware updates, feel free to send it in so I can get my hands on it, hi hi! Keith WE6R, Elecraft K3 Tech From keith at elecraft.com Mon Jun 15 15:30:06 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Mon, 15 Jun 2020 12:30:06 -0700 Subject: [Elecraft] Firmware, K3, large jump AB3JN In-Reply-To: References: <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> Message-ID: Also we suggest setting the K3 Utility to the ADVANCED mode for more control. Keith WE6R On 6/15/2020 12:27 PM, Joseph McIntire wrote: > Ok wel will do that. I do not have the sub receiver so that makes it > a little easier. I still have all the original paper work and > manuals. I was going to print the latest manuals tonight. I know > that there's options in there I don't have but most the functions > updated by firmware should be in there. Thank you for your assistance > > Joe AB3JN > > Sent from my Verizon, Samsung Galaxy smartphone > > ------------------------------------------------------------------------ > *From:* Keith Trinity WE6R > *Sent:* Monday, June 15, 2020 2:19:54 PM > *To:* Joseph McIntire ; elecraft at mailman.qth.net > ; support at elecraft.com > *Subject:* Re: [Elecraft] Firmware, K3, large jump AB3JN > At this point, I would do the reset, then set RS232 to 38400 to > continue on with the DSP load. (reset puts it at 4800 which is SLOW). > Then Reset again after FP & DSP have loaded, if you have a sub, you > will have to turn it on in config menu, then cycle power, then load DSP2. > Then a reset again after all FW is loaded. > Then you will have to setup filters, options and do the TX gain cal. > The K3 kit build manual has all of that. It will give you confidence > you have a clean start. > Let us know ... > Don't forget to do a new configuration save when it is all setup!! > (should you ever have to "go back"). > Keith WE6R Elecraft Tech. > > On 6/15/2020 12:07 PM, Joseph McIntire wrote: >> Yes that is what happened I just loaded the latest FW the mcu and >> FPF firmware update went well but when it loaded the DSP when it >> restarted the radio for some reason it didn't recognize the 2.88 >> version it had just installed. You know question marks ??.?? For >> the installed version for the DSP. The others look ok. And I get >> the ERR AT3. I have not searched yet for other trouble codes. I am >> at work right now. I will look at it again when I get home. I >> have been going through the release notes but there is a lot to >> go through. I will look into the parameter reset also. I will let >> you know how it goes. >> >> Sent from my Verizon, Samsung Galaxy smartphone >> >> ------------------------------------------------------------------------ >> *From:* Keith Trinity WE6R >> >> *Sent:* Monday, June 15, 2020 1:54:34 PM >> *To:* elecraft at mailman.qth.net >> ; >> ki4lys at msn.com >> ; support at elecraft.com >> >> >> *Subject:* Re: [Elecraft] Firmware, K3, large jump AB3JN >> Hi Joe; >> That is a HUGE jump! ( from 1.96 to 5.67. The oldest I have seen come in >> was 1.30!!) >> It is rare, but I have seen a glitch or two in extreme jumps. >> One is the ADC REF gets set to an invalid voltage of 4.00 which is OUT >> of RANGE!! >> Also any saved configs you might load could be an issue if you re-load. >> >> I can send you some in-between FW, but it is a LOT OF WORK and is NO >> guarantee that glitch won't happen. >> Is there some feature that you are specifically avoiding?? >> If you don't go with the latest, the Manual etc will not match, nor >> would any discussion with CS or other folks that are current. >> Reading the release notes is an excellent idea if you want to look for >> something specific, or ask me or CS. >> >> I *HIGHLY* recommend loading the latest FW and then after do a >> "Parameter RESET", (EE-INIT-ialization), and then setup and calibrate >> from SCRATCH. >> (IE don't load an old config). >> **That is what I do in repairs (after checking with customer) for such a >> large jump in FW. >> Also, that old of a radio will need gold pins and MANY hardware updates, >> feel free to send it in so I can get my hands on it, hi hi! >> Keith WE6R, Elecraft K3 Tech >> >> > From w1sfr.qrp at gmail.com Mon Jun 15 15:31:24 2020 From: w1sfr.qrp at gmail.com (Stephen Roberts) Date: Mon, 15 Jun 2020 15:31:24 -0400 Subject: [Elecraft] Novice looking for a loaded K1 Message-ID: Anyone have one to sell? I'm trying to get a new op up and running and after trying my K1, he just has to have one ;-) Steve?W1SFR From w4sc at windstream.net Mon Jun 15 15:32:52 2020 From: w4sc at windstream.net (w4sc) Date: Mon, 15 Jun 2020 15:32:52 -0400 Subject: [Elecraft] K160RX K2 160 Meter and 2nd Ant Option SOLD Message-ID: <0D.E8.16791.5ECC7EE5@smtp03.aqua.bos.sync.lan> K160RX K2 160 Meter and 2nd Ant Option SOLD Sent from Mail for Windows 10 From scholl at scholl.org Mon Jun 15 15:53:09 2020 From: scholl at scholl.org (cbscholl) Date: Mon, 15 Jun 2020 12:53:09 -0700 (MST) Subject: [Elecraft] Spurs on 6 meters on FT8 In-Reply-To: <1258189660.5032400.1591976449657.JavaMail.root@starpower.net> References: <1591975512827-0.post@n2.nabble.com> <1258189660.5032400.1591976449657.JavaMail.root@starpower.net> Message-ID: <1592250789608-0.post@n2.nabble.com> This is a picture of my signal on a 7851 about 6 miles away. At another point I had the KPA500 and it looked like this. I also saw a similar view on a 7300 in the shack but did not take a picture. Barney -- Sent from: http://elecraft.365791.n2.nabble.com/ From scholl at scholl.org Mon Jun 15 15:58:05 2020 From: scholl at scholl.org (cbscholl) Date: Mon, 15 Jun 2020 12:58:05 -0700 (MST) Subject: [Elecraft] Spurs on 6 meters on FT8 In-Reply-To: References: <1591975512827-0.post@n2.nabble.com> Message-ID: <1592251085419-0.post@n2.nabble.com> Yes this was a K3. I had been running the audio gain at about that point. But when the pictures were taken I had backed off to try to help the situation. Barney -- Sent from: http://elecraft.365791.n2.nabble.com/ From ardrhi at gmail.com Mon Jun 15 16:01:31 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Mon, 15 Jun 2020 16:01:31 -0400 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: Message-ID: I like this one, Eric. https://www.amazon.com/gp/product/B01J7P0OGI -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Mon, Jun 15, 2020 at 12:30 PM Eric KG6MZS wrote: > Hello All, > > I just scanned the archives for recommendations on a good external USB > audio interface for sound card digital. In 2017 Jim (K9YC) recommended two > (ASUS and Newmark) that are no longer available. > > What are the current favs that are out there now? > > TIA, > Eric > KG6MZS > > > > > Buy the ASUS or the Numark here. > > > > > https://www.bhphotovideo.com/c/search?Ntt=asus%20u5&N=0&InitialSearch=yes&sts=ma&Top+Nav-Search= > < > https://www.bhphotovideo.com/c/search?Ntt=asus%20u5&N=0&InitialSearch=yes&sts=ma&Top+Nav-Search= > > > > > > > https://www.bhphotovideo.com/c/product/639303-REG/Numark_STEREO%7CIO_Stereo_iO_USB.html > < > https://www.bhphotovideo.com/c/product/639303-REG/Numark_STEREO%7CIO_Stereo_iO_USB.html > > > > > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com > From elanzl at sbcglobal.net Mon Jun 15 16:05:50 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Mon, 15 Jun 2020 20:05:50 +0000 (UTC) Subject: [Elecraft] SSB Net 6-14-2020 References: <1545456336.994059.1592251550559.ref@mail.yahoo.com> Message-ID: <1545456336.994059.1592251550559@mail.yahoo.com> Here is the list of stations checking in to the 20m SSB net for Sunday June 14,2020. Thanks to the relay stations listed below for your help. There is a 40m net at 18:45Z and an 80m net at 0100Z. The 40m net is on 7.280 and the 80m. net meets on 3940. Thanks to all who participated. On the week of field day we will not have the net due to the heavy use of the band and that many participants of the net will probably be engaged in field day as well. We will meet on Sunday July 5th. Eric WB9JNZ Call???????????? Name????? State?????? Radio????? Serial #?? QRP???????????????????????????????????????? Notes WB9JNZ?????????? Eric??????????????? IL??????????????????? K3???????????????????? 4017????????????? ?????????????????????????????????????? NetControl K8NU?????????????? Carl??????????????? OH??????????????? ? K3S??????????????? 10996??????????? ???????????????????????????????????????????????? ? WM6P????????????? Steve???????????? GA??????????????? ? K3S??????????????? 11453??????????? ???????????????????????????????????????????????? ? NC0JW??????????? Jim?????????????? ?? CO????????????????? KX3????????????? ? ? 1356????????????? ?????? ????????????????????????????????Relay station? N6JW/M?????????? John???????????? ? CA????????????????? KX3???????????????????? 515??????????????? ???????? ??????????????????????????? Relay station??? N4NRW?????????? Roger???????? ? ? SC??????????????? ?? K3???????????????? ?? 1318????????????? ?????? ????????????????????????????????Relay station? KB9AVO????????? Paul???????????? ?? IN??????????????? ? ? K3S????????????? ?? 11103??????????? ???????????????????????????????????????????????? ? W1NGA?????????? Al????????????????? ? CO????????????????? K3??????????????? ? ? 5765????????????? ???????????????????????????????????????????????? ? W4DML?????????? Doug?????????? ?? TN??????????????? ?? K3???????????????? ? ? 6433????????????? ???????????????????????????????????????????????? ? KJ9B??????????????? Ken???????????? ?? IN???????????????? ?? K3S???????????????? 10270??????????? ???????????????????????????????????????????????? ? K5APL???????????? Wes?????????? ? ? AR?????????????? ? ? K2???????????????? ? ? 3505????????????? ???????????????????????????????????????????????? ? K6VWE??????????? Stan?????????????? MI?????????????? ? ?? K3???????????????? ? ? ? 650??????????????? ???????????????????????????????????????????????? ? K0JFJ?????????????? Nick?????????????? MN????????????? ? ?? K3S???????????????? 11830??????????? ???????????????????????????????????????????????? ? N2TNQ???????????? Len??????????????? NJ?????????????????? K3???????????????? ? ?? 5270????????????? ???????????????????????????????????????????????? ? NS7P??????????????? Phil??????????????? OR??????????????? ? K3????????????????????? 1826????????????? ???????????????????????????????????????????????? ? K6FW?????????????? Frank?????????? ? CA?????????????? ?? K3S?????????????? ?? 11672??????????? ???????????????????????????????????????????????? ? KS6F??????????????? Guy ?????????????? CA??????????????? ? K3S????????????????? 11672??????????? ???????????????????????????????????????????????? ? KF7ZN????????????? Ron????????????? ? UT?????????????? ?? K3S?????????????? ?? 10832??????????? ???????????????????????????????????????????????? ? N0KHH????????????? Steve??????? ? ?? MN????????????? ?? Yaesu???????????? FT1000???????? ???????????????????????????????????????????????? ? N7BDL????????????? Terry??????????? ? AZ?????????????????? K3S?????????????? ? 10373??????????? ???????????????????????????????????????????????? ? N0MPM/P????????? Mike??????????? ? CO??????????????? ? KX3???????????? ? ? ?? 8820????????????? ?????????????????????????????? portable Rocky Mountain NP KS7D/P?????????? ? Mike??????????? ? OR?????????????? ?? KX3????????????? ? ? ? 1847????????????? ???????????????????????????????????????????????? ? AI6B????????????????? Brian???????????? CA?????????????????? KX2????????????? ? ? ? 1869????????????? ???????????????????????????????????????????????? ? KC1ACL??????????? Steve??????????? NM???????????? ? ? ? KX3???????????? ? ?? 10677??????????? ???????????????????????????????????????????????? ? K7BRR????????????? Bill???????????????? AZ???????????????? ?? K3S????????????? ?? 10939??????????? ???????????????????????????????????????????????? ? ?KO5V?? ? ? ? ? ? Jim??????? ? ? ? NM????? ? ? ? ? ? K2/100 ? ? ? ???? 7225 From brian at elecraft.com Mon Jun 15 16:11:01 2020 From: brian at elecraft.com (Brian Broggie) Date: Mon, 15 Jun 2020 13:11:01 -0700 Subject: [Elecraft] K4 cables In-Reply-To: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB@bellsouth.net> References: <53A2D8B5-2592-4AEF-ACF2-A69524F003FB.ref@bellsouth.net> <53A2D8B5-2592-4AEF-ACF2-A69524F003FB@bellsouth.net> Message-ID: Hi, Joseph! We are going to have a 10' shielded ethernet cable available as an option on our website for the K4. Thanks for asking! Brian Broggie K4 Program Manager Elecraft, Inc. W6FVI On Mon, Jun 15, 2020 at 8:14 AM Joseph Trombino, Jr wrote: > Howdy Gang. > > Does anyone know if the K4 will ship with an Ethernet cable? > > 73, Joe W2KJ > I QRP, therefore I am > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to brian at elecraft.com > From w6ipa at poxika.net Mon Jun 15 16:14:15 2020 From: w6ipa at poxika.net (W6IPA) Date: Mon, 15 Jun 2020 13:14:15 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: Message-ID: If you want to connect line level input/output, and you want to be able to monitor the input and output through a headset, I would recommend : https://www.adorama.com/beuca202.html?gclid=EAIaIQobChMIyJLy7NCE6gIVVRh9Ch0a4A14EAQYASABEgKS2PD_BwE&utm_source=adl-gbase For more technical review of it: http://nwavguy.blogspot.com/2011/02/behringer-uca202-review.html JC/W6IPA. > On Jun 15, 2020, at 1:01 PM, Gwen Patton wrote: > > I like this one, Eric. https://www.amazon.com/gp/product/B01J7P0OGI > > -=-=-=-=-=-=-=-=- > 73, > Gwen, NG3P > > > On Mon, Jun 15, 2020 at 12:30 PM Eric KG6MZS wrote: > >> Hello All, >> >> I just scanned the archives for recommendations on a good external USB >> audio interface for sound card digital. In 2017 Jim (K9YC) recommended two >> (ASUS and Newmark) that are no longer available. >> >> What are the current favs that are out there now? >> >> TIA, >> Eric >> KG6MZS >> >>> >>> Buy the ASUS or the Numark here. >>> >>> >> https://www.bhphotovideo.com/c/search?Ntt=asus%20u5&N=0&InitialSearch=yes&sts=ma&Top+Nav-Search= >> < >> https://www.bhphotovideo.com/c/search?Ntt=asus%20u5&N=0&InitialSearch=yes&sts=ma&Top+Nav-Search= >>> >>> >>> >> https://www.bhphotovideo.com/c/product/639303-REG/Numark_STEREO%7CIO_Stereo_iO_USB.html >> < >> https://www.bhphotovideo.com/c/product/639303-REG/Numark_STEREO%7CIO_Stereo_iO_USB.html >>> >>> >>> 73, Jim K9YC >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ardrhi at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6ipa at poxika.net From kk5ib01 at gmail.com Mon Jun 15 16:25:49 2020 From: kk5ib01 at gmail.com (Darryl J Kelly) Date: Mon, 15 Jun 2020 15:25:49 -0500 Subject: [Elecraft] External Digital Box Message-ID: I use Tascam US-2x2 digital sound card boxes, work very well, have about 100 db noise level, I actually have three of the them used mostly for MARS. Darryl, KK5IB From jim at audiosystemsgroup.com Mon Jun 15 16:30:39 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 15 Jun 2020 13:30:39 -0700 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> References: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> Message-ID: <7b3b9fb1-3e73-df93-49b1-7782cc7d869c@audiosystemsgroup.com> On 6/15/2020 6:48 AM, Ed G wrote: > When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level. Look for something breaking down in your antenna system or between the power amp and the antenna. High power has a way of finding weaknesses that low power lives with. 73, Jim K9YC From ki4lys at msn.com Mon Jun 15 16:33:48 2020 From: ki4lys at msn.com (Joseph McIntire) Date: Mon, 15 Jun 2020 20:33:48 +0000 Subject: [Elecraft] Firmware, K3, large jump AB3JN In-Reply-To: References: <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> , Message-ID: Ok will do. Question though. It is calling it the high power or 50 watt TX gain calibration. Turn off the ATU if you have one. I don't wish I did. But anyway select each band go to tune and verify 50 watts out. Ok I had 50 watts on each. But have not seen in the manual where you would adjust anything if it wasn't. To me thT verifing not calibrating. I also seen on the K3 utility under the calibration tab there is a button for that but it was grayed out and couldn't be selected. How does it work. I have not seen any instructions for doing it that way. Joe AB3JN Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 2:30:06 PM To: Joseph McIntire ; elecraft at mailman.qth.net ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN Also we suggest setting the K3 Utility to the ADVANCED mode for more control. Keith WE6R On 6/15/2020 12:27 PM, Joseph McIntire wrote: Ok wel will do that. I do not have the sub receiver so that makes it a little easier. I still have all the original paper work and manuals. I was going to print the latest manuals tonight. I know that there's options in there I don't have but most the functions updated by firmware should be in there. Thank you for your assistance Joe AB3JN Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 2:19:54 PM To: Joseph McIntire ; elecraft at mailman.qth.net ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN At this point, I would do the reset, then set RS232 to 38400 to continue on with the DSP load. (reset puts it at 4800 which is SLOW). Then Reset again after FP & DSP have loaded, if you have a sub, you will have to turn it on in config menu, then cycle power, then load DSP2. Then a reset again after all FW is loaded. Then you will have to setup filters, options and do the TX gain cal. The K3 kit build manual has all of that. It will give you confidence you have a clean start. Let us know ... Don't forget to do a new configuration save when it is all setup!! (should you ever have to "go back"). Keith WE6R Elecraft Tech. On 6/15/2020 12:07 PM, Joseph McIntire wrote: Yes that is what happened I just loaded the latest FW the mcu and FPF firmware update went well but when it loaded the DSP when it restarted the radio for some reason it didn't recognize the 2.88 version it had just installed. You know question marks ??.?? For the installed version for the DSP. The others look ok. And I get the ERR AT3. I have not searched yet for other trouble codes. I am at work right now. I will look at it again when I get home. I have been going through the release notes but there is a lot to go through. I will look into the parameter reset also. I will let you know how it goes. Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 1:54:34 PM To: elecraft at mailman.qth.net ; ki4lys at msn.com ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN Hi Joe; That is a HUGE jump! ( from 1.96 to 5.67. The oldest I have seen come in was 1.30!!) It is rare, but I have seen a glitch or two in extreme jumps. One is the ADC REF gets set to an invalid voltage of 4.00 which is OUT of RANGE!! Also any saved configs you might load could be an issue if you re-load. I can send you some in-between FW, but it is a LOT OF WORK and is NO guarantee that glitch won't happen. Is there some feature that you are specifically avoiding?? If you don't go with the latest, the Manual etc will not match, nor would any discussion with CS or other folks that are current. Reading the release notes is an excellent idea if you want to look for something specific, or ask me or CS. I *HIGHLY* recommend loading the latest FW and then after do a "Parameter RESET", (EE-INIT-ialization), and then setup and calibrate from SCRATCH. (IE don't load an old config). **That is what I do in repairs (after checking with customer) for such a large jump in FW. Also, that old of a radio will need gold pins and MANY hardware updates, feel free to send it in so I can get my hands on it, hi hi! Keith WE6R, Elecraft K3 Tech From jim at audiosystemsgroup.com Mon Jun 15 16:34:36 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 15 Jun 2020 13:34:36 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: Message-ID: <2c2c992f-d8ad-8785-c120-80c53d7a4d45@audiosystemsgroup.com> On 6/15/2020 9:30 AM, Eric KG6MZS wrote: > In 2017 Jim (K9YC) recommended two (ASUS and Newmark) that are no longer available. Most of the products I recommended can be found on ebay. As with any purchases online, pay attention to customer ratings and the "look" of the listing. 73, Jim K9YC From keith at elecraft.com Mon Jun 15 16:50:21 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Mon, 15 Jun 2020 13:50:21 -0700 Subject: [Elecraft] Firmware, K3, large jump AB3JN In-Reply-To: References: <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> Message-ID: <9f32e59b-6b17-8d65-fb27-57f3f8c08110@elecraft.com> You must go into the config menu, set KPA3 to "nor" then cycle power. Then connect to the utility and the 50w should be available to run from there. Set KXV3 to nor also, cycle power, then you can use the Utility to run the MW test too. Looks like you DID do the 50 manually and the TXGN number most likely changed, (see next sentence). (The MW and 5w need to be run too). You can do all the gain cals manually but the Utility is soo much easier. Manually you make sure TUN PWR is nor, then set power to 50w EXACTLY, (or 5w for the low cal), then long press XMIT and let it send a carrier for several seconds. You will see the TXGN number change from the default 10 to something (although 10 is a valid number too, just the default and should not be 10 on all bands). For MW, set KXV3 to "test" and set to 1.0mw exactly and TUNE for several seconds) DON'T FORGET TO TAKE IT OUT OF TEST, HI HI, there is NO indication and it will confound you, been there, ha ha. Then Never, ever, EVER set your tx power to *exactly* 5watts, 50watts or 1.0MW ever again because you can inadvertently re-do the tx gain cal and if not into a flat dummy load, you can get it all fouled up. Keith WE6R, Elecraft K3 Tech. On 6/15/2020 1:33 PM, Joseph McIntire wrote: > Ok will do. Question though. It is calling it the high power or 50 > watt TX gain calibration. Turn off the ATU if you have one. I don't > wish I did. But anyway select each band go to tune and verify 50 > watts out. Ok I had 50 watts on each. But have not seen in the manual > where you would adjust anything if it wasn't. To me thT verifing not > calibrating. I also seen on the K3 utility under the calibration tab > there is a button for that but it was grayed out and couldn't be > selected. How does it work. I have not seen any instructions for doing > it that way. > > Joe AB3JN > > Sent from my Verizon, Samsung Galaxy smartphone > > ------------------------------------------------------------------------ > *From:* Keith Trinity WE6R > *Sent:* Monday, June 15, 2020 2:30:06 PM > *To:* Joseph McIntire ; elecraft at mailman.qth.net > ; support at elecraft.com > *Subject:* Re: [Elecraft] Firmware, K3, large jump AB3JN > Also we suggest setting the K3 Utility to the ADVANCED mode for more > control. > Keith WE6R > > On 6/15/2020 12:27 PM, Joseph McIntire wrote: >> Ok wel will do that. I do not have the sub receiver so that makes it >> a little easier. I still have all the original paper work and >> manuals. I was going to print the latest manuals tonight. I know >> that there's options in there I don't have but most the functions >> updated by firmware should be in there. Thank you for your assistance >> >> Joe AB3JN >> >> Sent from my Verizon, Samsung Galaxy smartphone >> >> ------------------------------------------------------------------------ >> *From:* Keith Trinity WE6R >> >> *Sent:* Monday, June 15, 2020 2:19:54 PM >> *To:* Joseph McIntire ; >> elecraft at mailman.qth.net >> ; >> support at elecraft.com >> >> *Subject:* Re: [Elecraft] Firmware, K3, large jump AB3JN >> At this point, I would do the reset, then set RS232 to 38400 to >> continue on with the DSP load. (reset puts it at 4800 which is SLOW). >> Then Reset again after FP & DSP have loaded, if you have a sub, you >> will have to turn it on in config menu, then cycle power, then load >> DSP2. >> Then a reset again after all FW is loaded. >> Then you will have to setup filters, options and do the TX gain cal. >> The K3 kit build manual has all of that. It will give you confidence >> you have a clean start. >> Let us know ... >> Don't forget to do a new configuration save when it is all setup!! >> (should you ever have to "go back"). >> Keith WE6R Elecraft Tech. >> >> On 6/15/2020 12:07 PM, Joseph McIntire wrote: >>> Yes that is what happened I just loaded the latest FW the mcu >>> and FPF firmware update went well but when it loaded the DSP when >>> it restarted the radio for some reason it didn't recognize the >>> 2.88 version it had just installed. You know question marks ??.?? >>> For the installed version for the DSP. The others look ok. And I >>> get the ERR AT3. I have not searched yet for other trouble codes. >>> I am at work right now. I will look at it again when I get home. >>> I have been going through the release notes but there is a lot >>> to go through. I will look into the parameter reset also. I >>> will let you know how it goes. >>> >>> Sent from my Verizon, Samsung Galaxy smartphone >>> >>> ------------------------------------------------------------------------ >>> *From:* Keith Trinity WE6R >>> >>> *Sent:* Monday, June 15, 2020 1:54:34 PM >>> *To:* elecraft at mailman.qth.net >>> ; >>> ki4lys at msn.com >>> ; support at elecraft.com >>> >>> >>> *Subject:* Re: [Elecraft] Firmware, K3, large jump AB3JN >>> Hi Joe; >>> That is a HUGE jump! ( from 1.96 to 5.67. The oldest I have seen >>> come in >>> was 1.30!!) >>> It is rare, but I have seen a glitch or two in extreme jumps. >>> One is the ADC REF gets set to an invalid voltage of 4.00 which is OUT >>> of RANGE!! >>> Also any saved configs you might load could be an issue if you re-load. >>> >>> I can send you some in-between FW, but it is a LOT OF WORK and is NO >>> guarantee that glitch won't happen. >>> Is there some feature that you are specifically avoiding?? >>> If you don't go with the latest, the Manual etc will not match, nor >>> would any discussion with CS or other folks that are current. >>> Reading the release notes is an excellent idea if you want to look for >>> something specific, or ask me or CS. >>> >>> I *HIGHLY* recommend loading the latest FW and then after do a >>> "Parameter RESET", (EE-INIT-ialization), and then setup and calibrate >>> from SCRATCH. >>> (IE don't load an old config). >>> **That is what I do in repairs (after checking with customer) for >>> such a >>> large jump in FW. >>> Also, that old of a radio will need gold pins and MANY hardware >>> updates, >>> feel free to send it in so I can get my hands on it, hi hi! >>> Keith WE6R, Elecraft K3 Tech >>> >>> >> > From ki4lys at msn.com Mon Jun 15 17:01:25 2020 From: ki4lys at msn.com (Joseph McIntire) Date: Mon, 15 Jun 2020 21:01:25 +0000 Subject: [Elecraft] Firmware, K3, large jump AB3JN In-Reply-To: <9f32e59b-6b17-8d65-fb27-57f3f8c08110@elecraft.com> References: <18ec7802-f678-1448-5436-76301fab8496@elecraft.com> , <9f32e59b-6b17-8d65-fb27-57f3f8c08110@elecraft.com> Message-ID: Ok i have two transverse that I put together a 144 MHz and a 50 MHz the 144 I finished think 2009 did the cals but if I remember correctly when I tried testing it when I keyed up it was like I got a carrier or something I had a hand held in the shack and I could here it key but did not get any audio. The six meter my father in law started and he passed so we picked it all up and put it in a box. And i recently finished it but have not got to do the calibration procedures or test it yet. Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 3:50:21 PM To: Joseph McIntire ; elecraft at mailman.qth.net ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN You must go into the config menu, set KPA3 to "nor" then cycle power. Then connect to the utility and the 50w should be available to run from there. Set KXV3 to nor also, cycle power, then you can use the Utility to run the MW test too. Looks like you DID do the 50 manually and the TXGN number most likely changed, (see next sentence). (The MW and 5w need to be run too). You can do all the gain cals manually but the Utility is soo much easier. Manually you make sure TUN PWR is nor, then set power to 50w EXACTLY, (or 5w for the low cal), then long press XMIT and let it send a carrier for several seconds. You will see the TXGN number change from the default 10 to something (although 10 is a valid number too, just the default and should not be 10 on all bands). For MW, set KXV3 to "test" and set to 1.0mw exactly and TUNE for several seconds) DON'T FORGET TO TAKE IT OUT OF TEST, HI HI, there is NO indication and it will confound you, been there, ha ha. Then Never, ever, EVER set your tx power to *exactly* 5watts, 50watts or 1.0MW ever again because you can inadvertently re-do the tx gain cal and if not into a flat dummy load, you can get it all fouled up. Keith WE6R, Elecraft K3 Tech. On 6/15/2020 1:33 PM, Joseph McIntire wrote: Ok will do. Question though. It is calling it the high power or 50 watt TX gain calibration. Turn off the ATU if you have one. I don't wish I did. But anyway select each band go to tune and verify 50 watts out. Ok I had 50 watts on each. But have not seen in the manual where you would adjust anything if it wasn't. To me thT verifing not calibrating. I also seen on the K3 utility under the calibration tab there is a button for that but it was grayed out and couldn't be selected. How does it work. I have not seen any instructions for doing it that way. Joe AB3JN Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 2:30:06 PM To: Joseph McIntire ; elecraft at mailman.qth.net ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN Also we suggest setting the K3 Utility to the ADVANCED mode for more control. Keith WE6R On 6/15/2020 12:27 PM, Joseph McIntire wrote: Ok wel will do that. I do not have the sub receiver so that makes it a little easier. I still have all the original paper work and manuals. I was going to print the latest manuals tonight. I know that there's options in there I don't have but most the functions updated by firmware should be in there. Thank you for your assistance Joe AB3JN Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 2:19:54 PM To: Joseph McIntire ; elecraft at mailman.qth.net ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN At this point, I would do the reset, then set RS232 to 38400 to continue on with the DSP load. (reset puts it at 4800 which is SLOW). Then Reset again after FP & DSP have loaded, if you have a sub, you will have to turn it on in config menu, then cycle power, then load DSP2. Then a reset again after all FW is loaded. Then you will have to setup filters, options and do the TX gain cal. The K3 kit build manual has all of that. It will give you confidence you have a clean start. Let us know ... Don't forget to do a new configuration save when it is all setup!! (should you ever have to "go back"). Keith WE6R Elecraft Tech. On 6/15/2020 12:07 PM, Joseph McIntire wrote: Yes that is what happened I just loaded the latest FW the mcu and FPF firmware update went well but when it loaded the DSP when it restarted the radio for some reason it didn't recognize the 2.88 version it had just installed. You know question marks ??.?? For the installed version for the DSP. The others look ok. And I get the ERR AT3. I have not searched yet for other trouble codes. I am at work right now. I will look at it again when I get home. I have been going through the release notes but there is a lot to go through. I will look into the parameter reset also. I will let you know how it goes. Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: Keith Trinity WE6R Sent: Monday, June 15, 2020 1:54:34 PM To: elecraft at mailman.qth.net ; ki4lys at msn.com ; support at elecraft.com Subject: Re: [Elecraft] Firmware, K3, large jump AB3JN Hi Joe; That is a HUGE jump! ( from 1.96 to 5.67. The oldest I have seen come in was 1.30!!) It is rare, but I have seen a glitch or two in extreme jumps. One is the ADC REF gets set to an invalid voltage of 4.00 which is OUT of RANGE!! Also any saved configs you might load could be an issue if you re-load. I can send you some in-between FW, but it is a LOT OF WORK and is NO guarantee that glitch won't happen. Is there some feature that you are specifically avoiding?? If you don't go with the latest, the Manual etc will not match, nor would any discussion with CS or other folks that are current. Reading the release notes is an excellent idea if you want to look for something specific, or ask me or CS. I *HIGHLY* recommend loading the latest FW and then after do a "Parameter RESET", (EE-INIT-ialization), and then setup and calibrate from SCRATCH. (IE don't load an old config). **That is what I do in repairs (after checking with customer) for such a large jump in FW. Also, that old of a radio will need gold pins and MANY hardware updates, feel free to send it in so I can get my hands on it, hi hi! Keith WE6R, Elecraft K3 Tech From keith at elecraft.com Mon Jun 15 17:01:38 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Mon, 15 Jun 2020 14:01:38 -0700 Subject: [Elecraft] Spurs on 6 meters on FT8 In-Reply-To: <1592251085419-0.post@n2.nabble.com> References: <1592251085419-0.post@n2.nabble.com> Message-ID: If you have a K3S (or late K3, with the KPA3A type 100w amp). Please see the recent FW notes in the K3 Utility about setting the 6m Atn6 attenuator switch to prevent 6m oscillations. Also, what rev of KLPA3A and KPA3A are you at? There have been improvements. Keith WE6R, Elecraft K3 Tech. From wes_n7ws at triconet.org Mon Jun 15 17:31:19 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 15 Jun 2020 14:31:19 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: Message-ID: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> What's the matter with the internal soundcard in your computer? Wes? N7WS On 6/15/2020 9:30 AM, Eric KG6MZS wrote: > Hello All, > > I just scanned the archives for recommendations on a good external USB audio interface for sound card digital. In 2017 Jim (K9YC) recommended two (ASUS and Newmark) that are no longer available. > > What are the current favs that are out there now? > > TIA, > Eric > KG6MZS From g4bvh at cathyandpeter.com Mon Jun 15 17:34:57 2020 From: g4bvh at cathyandpeter.com (G4BVH) Date: Mon, 15 Jun 2020 21:34:57 +0000 (UTC) Subject: [Elecraft] K3 - No RF output In-Reply-To: References: <001c01d642eb$94f28d80$bed7a880$@com> Message-ID: Hi Bill,The rig does not produce any RF out in any mode. Everything looks normal on the display, LEDs etc, the rig keys via mic or paddle but just no RF.Some have suggested a bad internal cable connection or bad board edge connector. I am working my way through those. 73, Peter G4BVH Get Outlook for iOS On Mon, Jun 15, 2020 at 2:45 PM +0100, "Bill Steffey NY9H" wrote: DOES k3 xmit ssb with a mic in usb ? what mode ( TXDATA) are you using ... usually when I have that symptom, turns out that computer sound card is NOT putting out TX audio to rig. On 6/15/2020 4:04 AM, G4BVH wrote: > Hi, > > > > I have had a fault develop on my K3 whereby there is no RF being produced. I > have emailed the details to Elecraft support and am hoping to receive a > reply with suggestions. However, I thought I would also send the details > here in case anyone can suggest something to try or investigate further. > > > > I have a K3, serial number 6482 which I built from a kit. It has worked > flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters > fitted and the 100W module but no other additions. > > > > A few days ago, it was running 20W of FT8 and I suddenly discovered that it > hadn't been transmitting. Everything appeared that it should be > transmitting: the red TX LED was lit, it was not in TEST mode (TX not > flashing) but there was no RF output displayed on the bar graph and > definitely nothing coming out on any mode. There is no RF if I wind down the > power below the 10W level, there is the usual relay click going through 12W > - 13W and still no RF above this level, ie on towards 100W. > > > > The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power > level setting and 1.18A on the higher power setting on transmit. The RF > output bar graph always displays 1 bar on transmit no matter what the power > level is set but there is no RF coming out. > > > > I tried the TX calibration but it fails saying the power level didn't reach > that required. > > > > The receiver works fine and I can hear the CW side tone and SSB, AM and FM > audio monitoring as normal. > > > > I have removed and reseated the front panel and also the 3 coax patch leads > behind the front panel but this made no difference. There is a yellow LED, > D33, on the main board which is lit on receive and goes out on transmit. > > > > The latest firmware is installed - I updated this a month or so ago. > > > > TX inhibit is OFF and the 20A breaker has not tripped. > > > > Any thoughts or suggestions gratefully received. > > > > Very many thanks and 73, > > > > Peter, G4BVH > > > > > > > -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to g4bvh at cathyandpeter.com From w6ipa at poxika.net Mon Jun 15 17:47:04 2020 From: w6ipa at poxika.net (W6IPA) Date: Mon, 15 Jun 2020 14:47:04 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> Message-ID: <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> The matter is that you will send all the OS sounds to that interface (because you have only one)- and at this point you need to chase all the notifications what will be sending sound, and you cannot watch youtube anymore :-) JC/W6IPA. > On Jun 15, 2020, at 2:31 PM, Wes wrote: > > What's the matter with the internal soundcard in your computer? > > Wes N7WS > > On 6/15/2020 9:30 AM, Eric KG6MZS wrote: >> Hello All, >> >> I just scanned the archives for recommendations on a good external USB audio interface for sound card digital. In 2017 Jim (K9YC) recommended two (ASUS and Newmark) that are no longer available. >> >> What are the current favs that are out there now? >> >> TIA, >> Eric >> KG6MZS > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6ipa at poxika.net From lists at w2irt.net Mon Jun 15 18:40:23 2020 From: lists at w2irt.net (Peter Dougherty) Date: Mon, 15 Jun 2020 18:40:23 -0400 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> Message-ID: <03df01d64365$f61864c0$e2492e40$@w2irt.net> If you have a K3s with the built in codecs that's not the case at all. It's its own independent audio device. For original K3 radios and other earlier rigs without built-in USB audio, I recommend the Microham Microkeyer-II. It ran my Yaesu Mark V based shack for about 10 years, and I got the cables to let it handle my K3s for a while, but eventually I just simplified everything and I took the MK-II out of line and resorted to USB connectivity. Not a single problem since then. PC sounds, video, music, etc, go to the motherboard sound interface, and the rig sounds (digimodes in/out and DVK from the PC to the radio) via the separate USB interface built into the K3s. If you have a radio without the USB interface ping me off-list and maybe we can make a deal on my no-longer-needed MicroKeyer-II? - pjd -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of W6IPA Sent: Monday, June 15, 2020 5:47 PM To: Wes Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Best Audio Interfaces 2020? The matter is that you will send all the OS sounds to that interface (because you have only one)- and at this point you need to chase all the notifications what will be sending sound, and you cannot watch youtube anymore :-) JC/W6IPA. > On Jun 15, 2020, at 2:31 PM, Wes wrote: > > What's the matter with the internal soundcard in your computer? > > Wes N7WS > > On 6/15/2020 9:30 AM, Eric KG6MZS wrote: >> Hello All, >> >> I just scanned the archives for recommendations on a good external USB audio interface for sound card digital. In 2017 Jim (K9YC) recommended two (ASUS and Newmark) that are no longer available. >> >> What are the current favs that are out there now? >> >> TIA, >> Eric >> KG6MZS > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > w6ipa at poxika.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists at w2irt.net From w2ljqrp at gmail.com Mon Jun 15 18:57:58 2020 From: w2ljqrp at gmail.com (Larry Makoski) Date: Mon, 15 Jun 2020 18:57:58 -0400 Subject: [Elecraft] NAQCC QRPp Sprint Message-ID: DATE: JUNE 17, 2020 (The evening of the 16th in North America.) TIME: 0030-0230 UTC BANDS: 80, 40, 20 (See the General Instructions page for suggested freq.) ==================== mW QRPp SPRINT RULES: All QSOs are to made with 1-watt of output power or less. Complete sprint rules including exchange details, operating categories, scoring, and logging requirements should be reviewed at http://www.naqcc.info/sprint_rules.html. ==================== MEMBERSHIP DATA FILES: Membership data files for supported sprint logging applications are available at http://www.naqcc.info/contests.html. It is very important that you use the latest data file in your software. It is available now for download. ==================== LOG SUBMISSIONS: All sprint logs must be submitted through our Autologger page at http://www.naqcc.info/autologger.php. Directly emailed logs are no longer accepted. Some significant updates have been made to this page, including some automatic error trapping and correcting. Please carefully follow the instructions given on the page for each of the input fields. (A sample Autologger page for you to practice on before the start of the sprint is available. See the list of useful links below.) Logging options and specific log formatting details can be found on the Sprint Rules page at http://www.naqcc.info/sprint_rules.html. ==================== AN INTRODUCTION TO OUR NAQCC SPRINTS: If you have been hesitant to give ham radio contesting a try you really should consider our NAQCC sprints. Our sprints are specifically tailored to help new CW operators get their first contesting experience. Our most popular operating category is for using a straight key and this automatically keeps the CW speeds relatively low. Additionally the exchange is simple and virtually everyone operating in the sprint is more than willing to slow down or give repeats. Once the sprint is over we make log submission easy with our automated Autologger page. Although scores are posted on our website and award certificates are issued, the real goal of our sprints is not to win something. It's to have FUN while promoting CW QRP operating. EVERYONE who participates in the sprint is a WINNER, and in keeping with this philosophy we have a drawing each month for a nice prize that all of our member participants are entered into. It doesn't matter if you made 1 QSO or 100 QSOs, everyone has a chance to win the prize. From vk4tux at gmail.com Mon Jun 15 19:46:19 2020 From: vk4tux at gmail.com (Adrian) Date: Tue, 16 Jun 2020 09:46:19 +1000 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: <7b3b9fb1-3e73-df93-49b1-7782cc7d869c@audiosystemsgroup.com> References: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> <7b3b9fb1-3e73-df93-49b1-7782cc7d869c@audiosystemsgroup.com> Message-ID: Did you see this part in Ed's earlier post ; " An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display." This would also should any power breakdown, but it doesn't ? Adrian Fewster On 16/6/20 6:30 am, Jim Brown wrote: > On 6/15/2020 6:48 AM, Ed G wrote: >> ? When setting the power output of my K3 to give varying amounts of >> drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 >> changing by a significant amount depending on the drive level. > > Look for something breaking down in your antenna system or between the > power amp and the antenna. High power has a way of finding weaknesses > that low power lives with. > > 73, Jim K9YC > > > From wes_n7ws at triconet.org Mon Jun 15 19:55:01 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 15 Jun 2020 16:55:01 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: <18B65FC4-7EE0-4B95-9DC1-D45104D2B385@hollywoodtitle.com> References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <18B65FC4-7EE0-4B95-9DC1-D45104D2B385@hollywoodtitle.com> Message-ID: OK? QSL. All of my computers have soundcards including the, soon to be replaced, shack Lenovo laptop. I tried a TASCAM US-100, highly recommended by K9YC, without seeing any improvement over the Lenovo on digital modes. Wes? N7WS On 6/15/2020 2:59 PM, Eric wrote: > Hi Wes, > > Thank you (and everybody) for the replies. > > I am using the computer?s sound card for receive audio right now on my old computer, but my new laptop doesn?t have a mic jack, so I need to go to some kind of external device to get the audio from the radio to the computer. > > 73 de Eric, KG6MZS > >> On Jun 15, 2020, at 2:31 PM, Wes wrote: >> >> What's the matter with the internal soundcard in your computer? >> >> Wes N7WS >> >> On 6/15/2020 9:30 AM, Eric KG6MZS wrote: >>> Hello All, >>> >>> I just scanned the archives for recommendations on a good external USB audio interface for sound card digital. In 2017 Jim (K9YC) recommended two (ASUS and Newmark) that are no longer available. >>> >>> What are the current favs that are out there now? >>> >>> TIA, >>> Eric >>> KG6MZS >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k3 at hollywoodtitle.com From wunder at wunderwood.org Mon Jun 15 19:59:41 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Mon, 15 Jun 2020 16:59:41 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <18B65FC4-7EE0-4B95-9DC1-D45104D2B385@hollywoodtitle.com> Message-ID: <923F3AF8-11EF-4951-B2F8-3928EFB90EED@wunderwood.org> This list was last updated in 2018. http://www.telepostinc.com/soundcards.html wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 15, 2020, at 4:55 PM, Wes wrote: > > OK QSL. > > All of my computers have soundcards including the, soon to be replaced, shack Lenovo laptop. I tried a TASCAM US-100, highly recommended by K9YC, without seeing any improvement over the Lenovo on digital modes. > > Wes N7WS > > On 6/15/2020 2:59 PM, Eric wrote: >> Hi Wes, >> >> Thank you (and everybody) for the replies. >> >> I am using the computer?s sound card for receive audio right now on my old computer, but my new laptop doesn?t have a mic jack, so I need to go to some kind of external device to get the audio from the radio to the computer. >> >> 73 de Eric, KG6MZS >> >>> On Jun 15, 2020, at 2:31 PM, Wes wrote: >>> >>> What's the matter with the internal soundcard in your computer? >>> >>> Wes N7WS >>> >>> On 6/15/2020 9:30 AM, Eric KG6MZS wrote: >>>> Hello All, >>>> >>>> I just scanned the archives for recommendations on a good external USB audio interface for sound card digital. In 2017 Jim (K9YC) recommended two (ASUS and Newmark) that are no longer available. >>>> >>>> What are the current favs that are out there now? >>>> >>>> TIA, >>>> Eric >>>> KG6MZS >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to k3 at hollywoodtitle.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From wes_n7ws at triconet.org Mon Jun 15 20:16:02 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 15 Jun 2020 17:16:02 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> Message-ID: The first thing I do when getting a new (to me) computer is turn off Windows sounds. I watch Youtube using ROKU on the big screen. Wes? N7WS On 6/15/2020 2:47 PM, W6IPA wrote: > The matter is that you will send all the OS sounds to that interface (because you have only one)- and at this point you need to chase all the notifications what will be sending sound, and you cannot watch youtube anymore :-) > > JC/W6IPA. > >> On Jun 15, 2020, at 2:31 PM, Wes wrote: >> >> What's the matter with the internal soundcard in your computer? >> >> Wes N7WS >> >> On 6/15/2020 9:30 AM, Eric KG6MZS wrote: >>> Hello All, >>> >>> I just scanned the archives for recommendations on a good external USB audio interface for sound card digital. In 2017 Jim (K9YC) recommended two (ASUS and Newmark) that are no longer available. >>> >>> What are the current favs that are out there now? >>> >>> TIA, >>> Eric >>> KG6MZS >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w6ipa at poxika.net From elanzl at sbcglobal.net Mon Jun 15 20:16:34 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Tue, 16 Jun 2020 00:16:34 +0000 (UTC) Subject: [Elecraft] SSB 40 M net 6-14-2020 References: <24362787.1126877.1592266594616.ref@mail.yahoo.com> Message-ID: <24362787.1126877.1592266594616@mail.yahoo.com> Here are the stations that checked in to the 40m net on Sunday 6-14-2020. Thanks to the relay stations and to all who checked in. WB9JNZ for WM6P SSB Net 6-14-2020 WB9JNZ?????? Eric????? ? IL??? ?? K3?????????? Substitute Net Control K8NU?????????? Carl?????? OH? ??? K3SKB9AVO???? ? Paul?? ? ? IN?????? K3S???????? Relay Station K6VWE????? ?? Stan????? MI???? ? K3?????????? Relay Station NC0JW?????? ? Jim???????? CO???? KX3W4DML???? ?? Doug???? TN??? ? K3AI9R????????? ?? Tom??????? IL?????? Icom 7300AE6JV??????? ?? Bill???????? NH????? KX3 From nelasat at yahoo.com Mon Jun 15 20:19:32 2020 From: nelasat at yahoo.com (Keith Ennis) Date: Tue, 16 Jun 2020 00:19:32 +0000 (UTC) Subject: [Elecraft] NEW! DIGITAL DISPLAY UNIT for ELECRAFT W2 WATT METER! In-Reply-To: <2089026973.136170.1590542693541@mail.yahoo.com> References: <275753581.1158082.1589309366820.ref@mail.yahoo.com> <275753581.1158082.1589309366820@mail.yahoo.com> <1996647678.519058.1589410383726@mail.yahoo.com> <2137847513.2033657.1590092538934@mail.yahoo.com> <2089026973.136170.1590542693541@mail.yahoo.com> Message-ID: <884309109.950808.1592266772129@mail.yahoo.com> Still have a few of these in stock. Www.KV5J.com Keith On Tuesday, May 26, 2020, 08:24:53 PM CDT, Keith Ennis wrote: I've been asked about using the display unit for remote. Both the W2 and my display unit use a straightforward rs232 port. I haven't done it yet, but connecting 2 serial devices over the internet shouldn't be that hard. Keith, KV5J On Thursday, May 21, 2020, 03:22:18 PM CDT, Keith Ennis wrote: Back in Stock at?http://www.kv5j.com Thanks,73 Keith, KV5J On Wednesday, May 13, 2020, 05:53:03 PM CDT, Keith Ennis wrote: I am starting a list if you are interested in a DDU. Available May 21-23. Send requests to DDUinfo at yahoo.com Thanks Keith,KV5J On Tuesday, May 12, 2020, 01:49:26 PM CDT, Keith Ennis wrote: With permission from Eric and Wayne: This easy to install display unit* takes the guess work out of your LED lights Easy to read 2 line display No USB or serial cable to computer No com port in Windows to manage No computer needed Plug and Play Simply connect the SUPPLIED power splitter and PC data jumper cable Retains all functions from the W2 front panel All displayed info obtained directly from the W2 4" x 4.2" x 2" GREAT ADD-ON TO AN ALREADY GREAT WATT METER! Note:This is not an Elecraft product! *Elecraft W2 watt meter not included Information and pricing goto: www.kv5j.com I have a limited "In Stock" number of units.? After these sell it will take about 2 weeks for the next batch to be available. I only have a few of the first run left. I have started a larger second batch. Keith Ennis, KV5J From ns9i at bayland.net Mon Jun 15 20:43:04 2020 From: ns9i at bayland.net (NS9I WI) Date: Mon, 15 Jun 2020 19:43:04 -0500 Subject: [Elecraft] Remote Rig Setup RRC-1258 MkII SOLD In-Reply-To: References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> Message-ID: From jackbrindle at me.com Mon Jun 15 20:48:58 2020 From: jackbrindle at me.com (Jack Brindle) Date: Mon, 15 Jun 2020 17:48:58 -0700 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: References: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> <7b3b9fb1-3e73-df93-49b1-7782cc7d869c@audiosystemsgroup.com> Message-ID: That means that he needs to check the connectors, adapters and cable that run from the KPA500 to the LPA-100 and potentially the LP-100A itself. The directional coupler is the last component in the KPA500 chain. For reflected power, it simply reports the conditions it sees from the antenna connector out. That means the connectors, adapters and cable that follow it. Especially look at any adapters, they are notorious (especially right-angle adapters) for failing at hight power. This is a problem that many have seen, and is always an issue in the antenna system. Jim?s advice is spot-on here. 73! Jack, W6FB > On Jun 15, 2020, at 4:46 PM, Adrian wrote: > > Did you see this part in Ed's earlier post ; > > " > > An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display." > > > > This would also should any power breakdown, but it doesn't ? > Adrian Fewster > > > On 16/6/20 6:30 am, Jim Brown wrote: >> On 6/15/2020 6:48 AM, Ed G wrote: >>> When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level. >> >> Look for something breaking down in your antenna system or between the power amp and the antenna. High power has a way of finding weaknesses that low power lives with. >> >> 73, Jim K9YC >> >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From frantz at pwpconsult.com Mon Jun 15 21:01:42 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Mon, 15 Jun 2020 21:01:42 -0400 Subject: [Elecraft] White noise on K3transmit In-Reply-To: <1882509803.507716.1592146701006@mail.yahoo.com> Message-ID: Do check that you have the K3 configured for the front panel mic and the correct bias setting. Just guess why I suggest this. :-) 73 Bill AE6JV On 6/14/20 at 10:58 AM, mikefurrey at att.net (Mike Furrey) wrote: > I just set up to operate in the 6 meter contest and after no contacts, trying with two different > microphones (first the Elecraft mic, then a Heil mic) on the front panel, a check with a local said he > only hears white noise when I transmit. I am missing something. I am transmitting into a 2 element > quad. Both the K3 meter and Daiwa meter shows 1.2 SWR and Forward power out varies with my speech. I > switched radios to Icom 7200 and I am well heard. > > So, I am missing something. I scrolled through the menu and did not see anything obvious. Any help > please? > > 73, Mike WA5POK ----------------------------------------------------------------------- Bill Frantz | I like the farmers' market | Periwinkle (408)348-7900 | because I can get fruits and | 150 Rivermead Rd #235 www.pwpconsult.com | vegetables without stickers. | Peterborough, NH 03458 From K8UT at charter.net Mon Jun 15 21:33:36 2020 From: K8UT at charter.net (Larry (K8UT)) Date: Tue, 16 Jun 2020 01:33:36 +0000 Subject: [Elecraft] KPA1500 Operation on 6 Meters Message-ID: Ed, Your dummy load choices at 1500 watts range from expensive and good (Bird) to cheap and not-so-good. For example the MFJ-264 is listed as handling 1500 watts but if you read the fine print (the derating curve printed on its case ) you're limited to 8 seconds at 1500 watts. And each time you stress that dummy load its resistor value climbs by a few ohms. Frustrated with the commercial options available, I built a dummy load using a huge heatsink from a salvage VHF transmitter and a series/parallel combination of four 50 ohm 250 watt resistors purchased on eBay. https://www.ebay.com/itm/1PCS-Anaren-RFP-250-50RM-RFP250-50-RF-Power-Flanged-Resistors-250-Watts-50-ohm/133028134252?hash=item1ef9183d6c:g:uHQAAOSwyFhcvsvw -larry (K8UT) ------ Original Message ------ From: "Ed G" To: "Larry (K8UT)" ; "elecraft at mailman.qth.net" Sent: 2020-06-15 10:57:32 AM Subject: RE: [Elecraft] KPA1500 Operation on 6 Meters >Hi Larry, > > Yes, exact same problem is there with a known good dummy load in >place of the Steppir yagi I normally use. > >--Ed? > > > > > >Sent from Mail for >Windows 10 > > > >From: Larry (K8UT) >Sent: Monday, June 15, 2020 10:09 AM >To: Ed G ; elecraft at mailman.qth.net > >Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters > > > >Ed, > > > >Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of > >drive. Suggest you test into a dummy load to see if the problem goes > >away, which would suggest some issue with power level into the feedline > >or antenna. > > > >-larry (K8UT) > > > > > >------ Original Message ------ > >From: "Ed G" > >To: "elecraft at mailman.qth.net" > >Sent: 2020-06-15 9:48:55 AM > >Subject: [Elecraft] KPA1500 Operation on 6 Meters > > > > >Folks, > > > I am trying to understand some odd KPA1500 operation on 6 >meters. When setting the power output of my K3 to give varying amounts >of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 >changing by a significant amount depending on the drive level. This is >with the KPA1500 tuner bypassed. An LP-100A on the output of the >KPA1500 is also used and displays the correct low SWR at all drive >levels that I would expect to be seeing on the KPA1500 display. > > > For example, with 5 watts drive from the K3, I see 1.3 SWR on >the LP-100, and 2.5:1 on the KPA1500 display. As I increase drive, the >KPA1500 SWR display goes down proportionally, until I get to about 40 >watts drive. At the 40 watt drive level, I am seeing a nice healthy >1600 watts output, and both the LP-100 and the KPA1500 are showing the >same 1.3 SWR. 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the >KPA1500 display. So I am not sure why the SWR sensing and display in >the KPA1500 is behaving this way? I do not see this oddity on any >other bands. > > > I might also add that attempting to get the KPA1500 internal >tuner to bring down the high SWR as seen on the KPA1500 results in a >drop in SWR displayed on the KPA1500 to where SWR almost equals that on >the LP-100, but using the tuner I would expect that to be even better. > > >--Ed? > > > > > > > > > > > > > > >-- > > >This email has been checked for viruses by Avast antivirus software. > > >https://www.avast.com/antivirus > > >______________________________________________________________ > > >Elecraft mailing list > > >Home: http://mailman.qth.net/mailman/listinfo/elecraft > > >Help: http://mailman.qth.net/mmfaq.htm > > >Post: mailto:Elecraft at mailman.qth.net > > > > > >This list hosted by: http://www.qsl.net > > >Please help support this email list: http://www.qsl.net/donate.html > > >Message delivered to k8ut at charter.net > > > > > >Virus-free. www.avast.com > ><#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> From vk1zzgary at gmail.com Mon Jun 15 21:37:45 2020 From: vk1zzgary at gmail.com (Gary Gregory) Date: Tue, 16 Jun 2020 11:37:45 +1000 Subject: [Elecraft] K3s discontinued? Message-ID: Was there a reason why the K3s was discontinued? Looking at the pricing for a K4 was a shock in itself, when I did the numbers to convert to AUD I was floored. That is one great beast BUT too far out of my price range sadly. As one who normally does not buy unwanted used equipment, I was hoping to add a K3s to my current setup (K3 #679) but that appears to be out of the question dammit. Gary VK1ZZ From vk4tux at gmail.com Mon Jun 15 21:48:27 2020 From: vk4tux at gmail.com (Adrian) Date: Tue, 16 Jun 2020 11:48:27 +1000 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: References: <5ee77c47.1c69fb81.1cf1a.0fde@mx.google.com> <7b3b9fb1-3e73-df93-49b1-7782cc7d869c@audiosystemsgroup.com> Message-ID: <0ab3613a-1f5e-5b7b-2016-1d97a5babd55@gmail.com> I don't agree,... Any issue between the LP-100A and KPA1500 is extremely unlikely, and any issue in the antenna system would reflect on both LP-100A and KPA-1500 swr indications. I find the LP-100A consistent readings at all drive levels discounts the antenna system thereafter as a cause. On 16/6/20 10:48 am, Jack Brindle wrote: > That means that he needs to check the connectors, adapters and cable that run from the KPA500 to the LPA-100 and potentially the LP-100A itself. > > The directional coupler is the last component in the KPA500 chain. For reflected power, it simply reports the conditions it sees from the antenna connector out. > That means the connectors, adapters and cable that follow it. Especially look at any adapters, they are notorious (especially right-angle adapters) for failing at hight power. > > This is a problem that many have seen, and is always an issue in the antenna system. Jim?s advice is spot-on here. > > 73! > Jack, W6FB > > >> On Jun 15, 2020, at 4:46 PM, Adrian wrote: >> >> Did you see this part in Ed's earlier post ; >> >> " >> >> An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display." >> >> >> >> This would also should any power breakdown, but it doesn't ? >> Adrian Fewster >> >> >> On 16/6/20 6:30 am, Jim Brown wrote: >>> On 6/15/2020 6:48 AM, Ed G wrote: >>>> When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level. >>> Look for something breaking down in your antenna system or between the power amp and the antenna. High power has a way of finding weaknesses that low power lives with. >>> >>> 73, Jim K9YC >>> >>> >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jackbrindle at me.com > From KX3.2 at ColdRocksHotBrooms.com Mon Jun 15 21:49:38 2020 From: KX3.2 at ColdRocksHotBrooms.com (Lynn W. Taylor, WB6UUT) Date: Mon, 15 Jun 2020 18:49:38 -0700 Subject: [Elecraft] K3s discontinued? In-Reply-To: References: Message-ID: <189bca27-436a-2a2c-a0a2-50dff8fda29a@ColdRocksHotBrooms.com> The page says: Please Note: We have limited stock of K3S/100-F and K3S/10-K. We no longer offer the K3S/100-K and the K3S/10-F. I would guess they have limited stock because their assemblers are either at home, or working on the initial K4 production backlog. You could try to order one... 73 -- Lynn On 6/15/20 6:37 PM, Gary Gregory wrote: > Was there a reason why the K3s was discontinued? > > Looking at the pricing for a K4 was a shock in itself, when I did the > numbers to convert to AUD I was floored. That is one great beast BUT too > far out of my price range sadly. > > As one who normally does not buy unwanted used equipment, I was hoping to > add a K3s to my current setup (K3 #679) but that appears to be out of the > question dammit. > > Gary > > VK1ZZ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kx3.2 at coldrockshotbrooms.com > From ardrhi at gmail.com Mon Jun 15 22:07:05 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Mon, 15 Jun 2020 22:07:05 -0400 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> Message-ID: The repurposed Chromebook I use for my field digital operating has the world's most useless built in sound system. Even if you have one of the goofy cables that will fit the sound socket, it won't work for digital. I tried. I looked it up, and it's a design defect in pretty much all Chromebooks. If you want to really use sound on a Chromebook, you have to use a sound dongle. I reflashed the Chromebook, taking out the old ChromeOS and replaced it with GalliumOS, a Linux distro for Chromebooks, and it works great with a sound dongle, but the internal sound hardware is just so awful you can't really use it for much of anything. So I don't I use that Techrise dongle I got for $17 and it works perfectly. I pair it with my MDS Phaser 40m digital mode QRP rig, and it makes a very compact little FT8 and JS8 station, with the appropriate Linux versions of the apps installed. I could have cobbled up something from a Raspberry Pi, but then I'd have to supply a screen, keyboard, pointing device, and battery. Sort of silly when I have a lightweight laptop-format device with all that stuff already built in, that cost very little to begin with. -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Mon, Jun 15, 2020 at 8:16 PM Wes wrote: > The first thing I do when getting a new (to me) computer is turn off > Windows sounds. > > I watch Youtube using ROKU on the big screen. > > Wes N7WS > > > > > On 6/15/2020 2:47 PM, W6IPA wrote: > > The matter is that you will send all the OS sounds to that interface > (because you have only one)- and at this point you need to chase all the > notifications what will be sending sound, and you cannot watch youtube > anymore :-) > > > > JC/W6IPA. > > > >> On Jun 15, 2020, at 2:31 PM, Wes wrote: > >> > >> What's the matter with the internal soundcard in your computer? > >> > >> Wes N7WS > >> > >> On 6/15/2020 9:30 AM, Eric KG6MZS wrote: > >>> Hello All, > >>> > >>> I just scanned the archives for recommendations on a good external USB > audio interface for sound card digital. In 2017 Jim (K9YC) recommended two > (ASUS and Newmark) that are no longer available. > >>> > >>> What are the current favs that are out there now? > >>> > >>> TIA, > >>> Eric > >>> KG6MZS > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to w6ipa at poxika.net > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com From donwilh at embarqmail.com Mon Jun 15 22:21:05 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 15 Jun 2020 22:21:05 -0400 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <04A0932F-51AE-4DF2-948A-1F525F4C637A@poxika.net> Message-ID: <27161458-1447-31f8-3d5e-affedb0dec5c@embarqmail.com> You do not need an exotic soundcard for digital modes, most any will do. The big thing to pay attention to is the noise level, which may or may not be specified. The soundcards reviewed at www.telepostinc.com is a good resource, but those listed are for panadapter purposes, and need a wide bandwidth. That wide bandwidth is not required for digital modes, but if you have it, there is no harm done. Many of the inexpensive USB soundcards will work fine for digital modes. As I indicated, the noise floor will define which card is better, not the bandwidth. Soundcards for digital use (but not panadapter) can be found in the $25 and up price category. 73, Don W3FPR On 6/15/2020 5:47 PM, W6IPA wrote: > The matter is that you will send all the OS sounds to that interface (because you have only one)- and at this point you need to chase all the notifications what will be sending sound, and you cannot watch youtube anymore :-) > > JC/W6IPA. > >> On Jun 15, 2020, at 2:31 PM, Wes wrote: >> >> What's the matter with the internal soundcard in your computer? >> From n6kr at elecraft.com Mon Jun 15 23:24:20 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 15 Jun 2020 20:24:20 -0700 Subject: [Elecraft] K3s discontinued? In-Reply-To: References: Message-ID: Gary, VK1ZZ, wrote: > I was hoping to add a K3s to my current setup (K3 #679) but that appears to be out of the > question dammit. Hi Gary, We sold the last K3S, I believe, but we'll have a number of upgraded, fully warranted K3's available for purchase on the web site sometime soon. Some were used for DXpeditions. > Was there a reason why the K3s was discontinued? Yes; we felt it was time to create a new, hybrid SDR with a large, integrated touch screen and virtually unlimited hardware/software expansion capability. The K3/K3S had a good run -- over 12 years. During that time we created many options and accessories and released dozens of free firmware upgrades. Everything we learned from that experience, plus a lot of new R&D, is being incorporated into the K4. (It's an exciting radio. For me, every morning it's a battle of wills to stop playing with it and get my work done :) We're looking forward to getting the K4 into customers' hands. Our suppliers are coming back on line. And so are we ... but we're prioritizing the health of our staff, which requires some heroics from the facilities department. 73, Wayne N6KR From pvandyke1953 at gmail.com Mon Jun 15 23:34:10 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Mon, 15 Jun 2020 23:34:10 -0400 Subject: [Elecraft] K3s discontinued? In-Reply-To: References: Message-ID: Wayne, I've always said .. "Real life comes 1st" On Mon, Jun 15, 2020, 11:26 PM Wayne Burdick wrote: > Gary, VK1ZZ, wrote: > > > I was hoping to add a K3s to my current setup (K3 #679) but that appears > to be out of the > > question dammit. > > > Hi Gary, > > We sold the last K3S, I believe, but we'll have a number of upgraded, > fully warranted K3's available for purchase on the web site sometime soon. > Some were used for DXpeditions. > > > > Was there a reason why the K3s was discontinued? > > Yes; we felt it was time to create a new, hybrid SDR with a large, > integrated touch screen and virtually unlimited hardware/software expansion > capability. > > The K3/K3S had a good run -- over 12 years. During that time we created > many options and accessories and released dozens of free firmware upgrades. > Everything we learned from that experience, plus a lot of new R&D, is being > incorporated into the K4. (It's an exciting radio. For me, every morning > it's a battle of wills to stop playing with it and get my work done :) > > We're looking forward to getting the K4 into customers' hands. Our > suppliers are coming back on line. And so are we ... but we're prioritizing > the health of our staff, which requires some heroics from the facilities > department. > > 73, > Wayne > N6KR > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pvandyke1953 at gmail.com > From pvandyke1953 at gmail.com Mon Jun 15 23:36:30 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Mon, 15 Jun 2020 23:36:30 -0400 Subject: [Elecraft] K3s discontinued? In-Reply-To: References: Message-ID: Sorry that was from Paul - KB9AVO On Mon, Jun 15, 2020, 11:34 PM Paul Van Dyke wrote: > Wayne, I've always said .. "Real life comes 1st" > > On Mon, Jun 15, 2020, 11:26 PM Wayne Burdick wrote: > >> Gary, VK1ZZ, wrote: >> >> > I was hoping to add a K3s to my current setup (K3 #679) but that >> appears to be out of the >> > question dammit. >> >> >> Hi Gary, >> >> We sold the last K3S, I believe, but we'll have a number of upgraded, >> fully warranted K3's available for purchase on the web site sometime soon. >> Some were used for DXpeditions. >> >> >> > Was there a reason why the K3s was discontinued? >> >> Yes; we felt it was time to create a new, hybrid SDR with a large, >> integrated touch screen and virtually unlimited hardware/software expansion >> capability. >> >> The K3/K3S had a good run -- over 12 years. During that time we created >> many options and accessories and released dozens of free firmware upgrades. >> Everything we learned from that experience, plus a lot of new R&D, is being >> incorporated into the K4. (It's an exciting radio. For me, every morning >> it's a battle of wills to stop playing with it and get my work done :) >> >> We're looking forward to getting the K4 into customers' hands. Our >> suppliers are coming back on line. And so are we ... but we're prioritizing >> the health of our staff, which requires some heroics from the facilities >> department. >> >> 73, >> Wayne >> N6KR >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to pvandyke1953 at gmail.com >> > From jim at audiosystemsgroup.com Mon Jun 15 23:51:49 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 15 Jun 2020 20:51:49 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <18B65FC4-7EE0-4B95-9DC1-D45104D2B385@hollywoodtitle.com> Message-ID: On 6/15/2020 4:55 PM, Wes wrote: > OK? QSL. > > All of my computers have soundcards including the, soon to be replaced, > shack Lenovo laptop. I tried a TASCAM US-100, highly recommended by > K9YC, without seeing any improvement over the Lenovo on digital modes. Hi Wes, You might want to look at the piece I wrote on the topic, which details my testing. It was pretty rigorous. The USB interfaces I recommended were equally good, decoded to much greater signal to noise levels, and produced almost twice as many decodes as the sound system built into the two T43 Thinkpads used for the tests. Pulling out the weakest signals requires a lot of dynamic range if very strong signals are present, and cheap A/D converters can have poor linearity close to the low end of the dynamic range. WSJT-X uses 48 kHz 16-bit, theoretical 96 dB, real life more like 90. It's not unusual for there to be locals 30-50 dB over S9 when the band is open, so every little bit of dynamic range can matter when you're trying to work the weak ones. All of this is why I started my search in the semi-pro audio world. One thing I differ with in the WSJT-X instructions is to set band noise to 30 dB on the green voltmeter bar. That's fine for modes like MSK144 and ISCAT B, but gives up FAR too much dynamic range for modes like FT8, FT4, JT65, and JT9. 73, Jim K9YC From k2vco.vic at gmail.com Tue Jun 16 00:39:07 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Tue, 16 Jun 2020 07:39:07 +0300 Subject: [Elecraft] K3 - No RF output In-Reply-To: References: Message-ID: <3AB23372-9D7F-41CC-A047-A7C82CC732C8@gmail.com> Check that TX INHIBIT is off in the menu. Victor 4X6GP > On 16 Jun 2020, at 0:35, G4BVH wrote: > > ? > > > > > Hi Bill,The rig doesnot produce any RF out in any mode. Everything looks normal on the display, LEDs etc, the rig keys via mic or paddle but just no RF.Some have suggested a bad internal cable connection or bad board edge connector. I am working my way through those. 73, Peter G4BVH > > > > Get Outlook for iOS > > > > > > > On Mon, Jun 15, 2020 at 2:45 PM +0100, "Bill Steffey NY9H" wrote: > > > > > > > > > > > DOES k3 xmit ssb with a mic in usb ? > > what mode ( TXDATA) are you using ... > > usually when I have that symptom, turns out that computer sound card is > NOT putting out TX audio to rig. > > >> On 6/15/2020 4:04 AM, G4BVH wrote: >> Hi, >> >> >> >> I have had a fault develop on my K3 whereby there is no RF being produced. I >> have emailed the details to Elecraft support and am hoping to receive a >> reply with suggestions. However, I thought I would also send the details >> here in case anyone can suggest something to try or investigate further. >> >> >> >> I have a K3, serial number 6482 which I built from a kit. It has worked >> flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters >> fitted and the 100W module but no other additions. >> >> >> >> A few days ago, it was running 20W of FT8 and I suddenly discovered that it >> hadn't been transmitting. Everything appeared that it should be >> transmitting: the red TX LED was lit, it was not in TEST mode (TX not >> flashing) but there was no RF output displayed on the bar graph and >> definitely nothing coming out on any mode. There is no RF if I wind down the >> power below the 10W level, there is the usual relay click going through 12W >> - 13W and still no RF above this level, ie on towards 100W. >> >> >> >> The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power >> level setting and 1.18A on the higher power setting on transmit. The RF >> output bar graph always displays 1 bar on transmit no matter what the power >> level is set but there is no RF coming out. >> >> >> >> I tried the TX calibration but it fails saying the power level didn't reach >> that required. >> >> >> >> The receiver works fine and I can hear the CW side tone and SSB, AM and FM >> audio monitoring as normal. >> >> >> >> I have removed and reseated the front panel and also the 3 coax patch leads >> behind the front panel but this made no difference. There is a yellow LED, >> D33, on the main board which is lit on receive and goes out on transmit. >> >> >> >> The latest firmware is installed - I updated this a month or so ago. >> >> >> >> TX inhibit is OFF and the 20A breaker has not tripped. >> >> >> >> Any thoughts or suggestions gratefully received. >> >> >> >> Very many thanks and 73, >> >> >> >> Peter, G4BVH >> >> >> >> >> >> >> > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to g4bvh at cathyandpeter.com > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com From wcoburn at gmail.com Tue Jun 16 00:43:19 2020 From: wcoburn at gmail.com (Wayne Coburn) Date: Mon, 15 Jun 2020 21:43:19 -0700 Subject: [Elecraft] K3s discontinued? In-Reply-To: References: Message-ID: Does this mean there's going to be a KX4 QRP radio? :-D 73, Wayne C KK6ZPL On Mon, Jun 15, 2020 at 8:26 PM Wayne Burdick wrote: > Gary, VK1ZZ, wrote: > > > I was hoping to add a K3s to my current setup (K3 #679) but that appears > to be out of the > > question dammit. > > > Hi Gary, > > We sold the last K3S, I believe, but we'll have a number of upgraded, > fully warranted K3's available for purchase on the web site sometime soon. > Some were used for DXpeditions. > > > > Was there a reason why the K3s was discontinued? > > Yes; we felt it was time to create a new, hybrid SDR with a large, > integrated touch screen and virtually unlimited hardware/software expansion > capability. > > The K3/K3S had a good run -- over 12 years. During that time we created > many options and accessories and released dozens of free firmware upgrades. > Everything we learned from that experience, plus a lot of new R&D, is being > incorporated into the K4. (It's an exciting radio. For me, every morning > it's a battle of wills to stop playing with it and get my work done :) > > We're looking forward to getting the K4 into customers' hands. Our > suppliers are coming back on line. And so are we ... but we're prioritizing > the health of our staff, which requires some heroics from the facilities > department. > > 73, > Wayne > N6KR > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wcoburn at gmail.com > From wes_n7ws at triconet.org Tue Jun 16 08:17:47 2020 From: wes_n7ws at triconet.org (Wes) Date: Tue, 16 Jun 2020 05:17:47 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <18B65FC4 -7EE0-4B95-9DC1-D45104D2B385@hollywoodtitle.com> Message-ID: <38197c5c-4bea-7f70-3459-24a8added23b@triconet.org> I should have stated for KG6MZS that my computers do have audio inputs to the internal cards. And when I spoke of digital modes, I meant RTTY, the only one I seriously use. Wes? N7WS On 6/15/2020 8:51 PM, Jim Brown wrote: > On 6/15/2020 4:55 PM, Wes wrote: >> OK? QSL. >> >> All of my computers have soundcards including the, soon to be replaced, shack >> Lenovo laptop. I tried a TASCAM US-100, highly recommended by K9YC, without >> seeing any improvement over the Lenovo on digital modes. > > Hi Wes, > > You might want to look at the piece I wrote on the topic, which details my > testing. It was pretty rigorous. The USB interfaces I recommended were equally > good, decoded to much greater signal to noise levels, and produced almost > twice as many decodes as the sound system built into the two T43 Thinkpads > used for the tests. > > Pulling out the weakest signals requires a lot of dynamic range if very strong > signals are present, and cheap A/D converters can have poor linearity close to > the low end of the dynamic range. WSJT-X uses 48 kHz 16-bit, theoretical 96 > dB, real life more like 90. It's not unusual for there to be locals 30-50 dB > over S9 when the band is open, so every little bit of dynamic range can matter > when you're trying to work the weak ones. All of this is why I started my > search in the semi-pro audio world. > > One thing I differ with in the WSJT-X instructions is to set band noise to 30 > dB on the green voltmeter bar. That's fine for modes like MSK144 and ISCAT B, > but gives up FAR too much dynamic range for modes like FT8, FT4, JT65, and JT9. > > 73, Jim K9YC From ed.n3cw at gmail.com Tue Jun 16 10:09:26 2020 From: ed.n3cw at gmail.com (Ed G) Date: Tue, 16 Jun 2020 10:09:26 -0400 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: References: Message-ID: <5ee8d296.1c69fb81.1b178.f19f@mx.google.com> This morning I put my DL2K dummy load right on the KPA1500 amp output (tried both ANT1 and ANT2)?I am still seeing the same SWR anomaly, where lower drive levels are giving high SWR readings on the KPA1500 display. By putting the dummy load right at the KPA1500 output, I eliminated a bunch of coax cables and switchboxes. So at this point the issue appears to be one internal to the KPA1500. Also appears to be not related to any previously-known high power RF causes, as in my case the problem is there at low drive levels and goes away at maximum drive/RF out. So I remain puzzled. --Ed, N3CW? Sent from Mail for Windows 10 From: Larry (K8UT) Sent: Monday, June 15, 2020 9:33 PM To: ed.n3cw at gmail.com; elecraft at mailman.qth.net Subject: Re[2]: [Elecraft] KPA1500 Operation on 6 Meters Ed, Your dummy load choices at 1500 watts range from expensive and good (Bird) to cheap and not-so-good. For example the MFJ-264 is listed as handling 1500 watts but if you read the fine print (the derating curve printed on its case ) you're limited to 8 seconds at 1500 watts. And each time you stress that dummy load its resistor value climbs by a few ohms. Frustrated with the commercial options available, I built a dummy load using a huge heatsink from a salvage VHF transmitter and a series/parallel combination of four 50 ohm 250 watt resistors purchased on eBay. https://www.ebay.com/itm/1PCS-Anaren-RFP-250-50RM-RFP250-50-RF-Power-Flanged-Resistors-250-Watts-50-ohm/133028134252?hash=item1ef9183d6c:g:uHQAAOSwyFhcvsvw -larry (K8UT) ------ Original Message ------ From: "Ed G" To: "Larry (K8UT)" ; "elecraft at mailman.qth.net" Sent: 2020-06-15 10:57:32 AM Subject: RE: [Elecraft] KPA1500 Operation on 6 Meters Hi Larry, ???? Yes, exact same problem is there with a known good dummy load in place of the Steppir yagi I normally use. --Ed? ? ? Sent from Mail for Windows 10 ? From: Larry (K8UT) Sent: Monday, June 15, 2020 10:09 AM To: Ed G; elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters ? Ed, ? Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of drive. Suggest you test into a dummy load to see if the problem goes away, which would suggest some issue with power level into the feedline or antenna. ? -larry (K8UT) ? ? ------ Original Message ------ From: "Ed G" To: "elecraft at mailman.qth.net" Sent: 2020-06-15 9:48:55 AM Subject: [Elecraft] KPA1500 Operation on 6 Meters ? >Folks, >????? I am trying to understand some odd KPA1500 operation on 6 meters.? When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level.? This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. >????? For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display.? As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR.? 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way?? I do not see this oddity on any other bands. >????? I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. >--Ed? >? >? >? >? >-- >This email has been checked for viruses by Avast antivirus software. >https://www.avast.com/antivirus >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net >? >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to k8ut at charter.net ? Virus-free. www.avast.com From ed.n3cw at gmail.com Tue Jun 16 10:30:21 2020 From: ed.n3cw at gmail.com (Ed G) Date: Tue, 16 Jun 2020 10:30:21 -0400 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: References: Message-ID: <5ee8d77d.1c69fb81.7ed10.6a51@mx.google.com> So, summary question for the KPA1500 amp designers: With 5 watts drive and the amp in STBY, the KPA1500 display reads the correct 1.3:1 SWR. When I switch the amp to OPER, SWR reads 2.5:1 with the same 5 watts drive. All hardware/cabling outside the KPA1500 remains the same for each case. Reminder that this anomaly is seen only on 6 meters; other bands are fine. BTW power out with 5 watts drive is about 150 watts, and internal KPA1500 tuner is bypassed. What is different inside the KPA1500 as to how the SWR is sensed and displayed between STBY and OPER? --Ed, N3CW? Sent from Mail for Windows 10 From: Larry (K8UT) Sent: Monday, June 15, 2020 9:33 PM To: ed.n3cw at gmail.com; elecraft at mailman.qth.net Subject: Re[2]: [Elecraft] KPA1500 Operation on 6 Meters Ed, Your dummy load choices at 1500 watts range from expensive and good (Bird) to cheap and not-so-good. For example the MFJ-264 is listed as handling 1500 watts but if you read the fine print (the derating curve printed on its case ) you're limited to 8 seconds at 1500 watts. And each time you stress that dummy load its resistor value climbs by a few ohms. Frustrated with the commercial options available, I built a dummy load using a huge heatsink from a salvage VHF transmitter and a series/parallel combination of four 50 ohm 250 watt resistors purchased on eBay. https://www.ebay.com/itm/1PCS-Anaren-RFP-250-50RM-RFP250-50-RF-Power-Flanged-Resistors-250-Watts-50-ohm/133028134252?hash=item1ef9183d6c:g:uHQAAOSwyFhcvsvw -larry (K8UT) ------ Original Message ------ From: "Ed G" To: "Larry (K8UT)" ; "elecraft at mailman.qth.net" Sent: 2020-06-15 10:57:32 AM Subject: RE: [Elecraft] KPA1500 Operation on 6 Meters Hi Larry, ???? Yes, exact same problem is there with a known good dummy load in place of the Steppir yagi I normally use. --Ed? ? ? Sent from Mail for Windows 10 ? From: Larry (K8UT) Sent: Monday, June 15, 2020 10:09 AM To: Ed G; elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters ? Ed, ? Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of drive. Suggest you test into a dummy load to see if the problem goes away, which would suggest some issue with power level into the feedline or antenna. ? -larry (K8UT) ? ? ------ Original Message ------ From: "Ed G" To: "elecraft at mailman.qth.net" Sent: 2020-06-15 9:48:55 AM Subject: [Elecraft] KPA1500 Operation on 6 Meters ? >Folks, >????? I am trying to understand some odd KPA1500 operation on 6 meters.? When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level.? This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. >????? For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display.? As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR.? 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way?? I do not see this oddity on any other bands. >????? I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. >--Ed? >? >? >? >? >-- >This email has been checked for viruses by Avast antivirus software. >https://www.avast.com/antivirus >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net >? >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to k8ut at charter.net ? Virus-free. www.avast.com From bill at wjschmidt.com Tue Jun 16 10:41:05 2020 From: bill at wjschmidt.com (Dr. William J. Schmidt) Date: Tue, 16 Jun 2020 09:41:05 -0500 Subject: [Elecraft] FW: KPA1500 Operation on 6 Meters In-Reply-To: <5ee8d77d.1c69fb81.7ed10.6a51@mx.google.com> References: <5ee8d77d.1c69fb81.7ed10.6a51@mx.google.com> Message-ID: <138b01d643ec$2ae7b760$80b72620$@wjschmidt.com> It may be more efficient for you to contact Rene (the KPA1500 support guy) at Elecraft and discuss this with him... ??? I doubt anyone in the forum has seen the schematics or was involved it its development to the point where they could help you. -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ed G Sent: Tuesday, June 16, 2020 9:30 AM To: Larry (K8UT) ; elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters So, summary question for the KPA1500 amp designers: With 5 watts drive and the amp in STBY, the KPA1500 display reads the correct 1.3:1 SWR. When I switch the amp to OPER, SWR reads 2.5:1 with the same 5 watts drive. All hardware/cabling outside the KPA1500 remains the same for each case. Reminder that this anomaly is seen only on 6 meters; other bands are fine. BTW power out with 5 watts drive is about 150 watts, and internal KPA1500 tuner is bypassed. What is different inside the KPA1500 as to how the SWR is sensed and displayed between STBY and OPER? --Ed, N3CW? Sent from Mail for Windows 10 From: Larry (K8UT) Sent: Monday, June 15, 2020 9:33 PM To: ed.n3cw at gmail.com; elecraft at mailman.qth.net Subject: Re[2]: [Elecraft] KPA1500 Operation on 6 Meters Ed, Your dummy load choices at 1500 watts range from expensive and good (Bird) to cheap and not-so-good. For example the MFJ-264 is listed as handling 1500 watts but if you read the fine print (the derating curve printed on its case ) you're limited to 8 seconds at 1500 watts. And each time you stress that dummy load its resistor value climbs by a few ohms. Frustrated with the commercial options available, I built a dummy load using a huge heatsink from a salvage VHF transmitter and a series/parallel combination of four 50 ohm 250 watt resistors purchased on eBay. https://www.ebay.com/itm/1PCS-Anaren-RFP-250-50RM-RFP250-50-RF-Power-Flanged-Resistors-250-Watts-50-ohm/133028134252?hash=item1ef9183d6c:g:uHQAAOSwyFhcvsvw -larry (K8UT) ------ Original Message ------ From: "Ed G" To: "Larry (K8UT)" ; "elecraft at mailman.qth.net" Sent: 2020-06-15 10:57:32 AM Subject: RE: [Elecraft] KPA1500 Operation on 6 Meters Hi Larry, Yes, exact same problem is there with a known good dummy load in place of the Steppir yagi I normally use. --Ed? Sent from Mail for Windows 10 From: Larry (K8UT) Sent: Monday, June 15, 2020 10:09 AM To: Ed G; elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters Ed, Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of drive. Suggest you test into a dummy load to see if the problem goes away, which would suggest some issue with power level into the feedline or antenna. -larry (K8UT) ------ Original Message ------ From: "Ed G" To: "elecraft at mailman.qth.net" Sent: 2020-06-15 9:48:55 AM Subject: [Elecraft] KPA1500 Operation on 6 Meters >Folks, > I am trying to understand some odd KPA1500 operation on 6 meters. When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level. This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. > For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display. As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR. 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way? I do not see this oddity on any other bands. > I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. >--Ed? > > > > >-- >This email has been checked for viruses by Avast antivirus software. >https://www.avast.com/antivirus >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net Please help support this email >list: http://www.qsl.net/donate.html Message delivered to >k8ut at charter.net Virus-free. www.avast.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to bill at wjschmidt.com -- This email has been checked for viruses by AVG. https://www.avg.com From k3 at hollywoodtitle.com Tue Jun 16 11:06:18 2020 From: k3 at hollywoodtitle.com (Eric KG6MZS) Date: Tue, 16 Jun 2020 08:06:18 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <18B65FC4-7EE0-4B95-9DC1-D45104D2B385@hollywoodtitle.com> Message-ID: <408BC243-1262-40E8-9D26-40E5E5C2D4C5@hollywoodtitle.com> Interesting. So what level do you recommend? It looks like I am able to pick up a used ASUS Xonar U5. Thanks for the replies everybody, Eric KG6MZS > On Jun 15, 2020, at 8:51 PM, Jim Brown wrote: > > One thing I differ with in the WSJT-X instructions is to set band noise to 30 dB on the green voltmeter bar. That's fine for modes like MSK144 and ISCAT B, but gives up FAR too much dynamic range for modes like FT8, FT4, JT65, and JT9. From vk4tux at gmail.com Tue Jun 16 11:09:15 2020 From: vk4tux at gmail.com (Adrian) Date: Wed, 17 Jun 2020 01:09:15 +1000 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: <5ee8d296.1c69fb81.1b178.f19f@mx.google.com> References: <5ee8d296.1c69fb81.1b178.f19f@mx.google.com> Message-ID: Just curious to see if you have tried a different length jumper (coax patch lead between radio & amp) to see if you get the same result? ? On 17/6/20 12:09 am, Ed G wrote: > This morning I put my DL2K dummy load right on the KPA1500 amp output (tried both ANT1 and ANT2)?I am still seeing the same SWR anomaly, where lower drive levels are giving high SWR readings on the KPA1500 display. By putting the dummy load right at the KPA1500 output, I eliminated a bunch of coax cables and switchboxes. > > So at this point the issue appears to be one internal to the KPA1500. Also appears to be not related to any previously-known high power RF causes, as in my case the problem is there at low drive levels and goes away at maximum drive/RF out. So I remain puzzled. > > --Ed, N3CW? > > > Sent from Mail for Windows 10 > > From: Larry (K8UT) > Sent: Monday, June 15, 2020 9:33 PM > To: ed.n3cw at gmail.com; elecraft at mailman.qth.net > Subject: Re[2]: [Elecraft] KPA1500 Operation on 6 Meters > > Ed, > > Your dummy load choices at 1500 watts range from expensive and good (Bird) to cheap and not-so-good. For example the MFJ-264 is listed as handling 1500 watts but if you read the fine print (the derating curve printed on its case ) you're limited to 8 seconds at 1500 watts. And each time you stress that dummy load its resistor value climbs by a few ohms. > > Frustrated with the commercial options available, I built a dummy load using a huge heatsink from a salvage VHF transmitter and a series/parallel combination of four 50 ohm 250 watt resistors purchased on eBay. > > https://www.ebay.com/itm/1PCS-Anaren-RFP-250-50RM-RFP250-50-RF-Power-Flanged-Resistors-250-Watts-50-ohm/133028134252?hash=item1ef9183d6c:g:uHQAAOSwyFhcvsvw > > -larry (K8UT) > > ------ Original Message ------ > From: "Ed G" > To: "Larry (K8UT)" ; "elecraft at mailman.qth.net" > Sent: 2020-06-15 10:57:32 AM > Subject: RE: [Elecraft] KPA1500 Operation on 6 Meters > > Hi Larry, > ???? Yes, exact same problem is there with a known good dummy load in place of the Steppir yagi I normally use. > --Ed? > > > Sent from Mail for Windows 10 > > From: Larry (K8UT) > Sent: Monday, June 15, 2020 10:09 AM > To: Ed G; elecraft at mailman.qth.net > Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters > > Ed, > > Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of > drive. Suggest you test into a dummy load to see if the problem goes > away, which would suggest some issue with power level into the feedline > or antenna. > > -larry (K8UT) > > > ------ Original Message ------ > From: "Ed G" > To: "elecraft at mailman.qth.net" > Sent: 2020-06-15 9:48:55 AM > Subject: [Elecraft] KPA1500 Operation on 6 Meters > >> Folks, >> ????? I am trying to understand some odd KPA1500 operation on 6 meters.? When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level.? This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. >> ????? For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display.? As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR.? 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way?? I do not see this oddity on any other bands. >> ????? I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. >> --Ed? >> >> >> >> >> -- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k8ut at charter.net > > > > Virus-free. www.avast.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to vk4tux at gmail.com From k3 at hollywoodtitle.com Tue Jun 16 11:12:40 2020 From: k3 at hollywoodtitle.com (Eric KG6MZS) Date: Tue, 16 Jun 2020 08:12:40 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: <38197c5c-4bea-7f70-3459-24a8added23b@triconet.org> References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <18B65FC4 -7EE0-4B95-9DC1-D45104D2B385@hollywoodtitle.com> <38197c5c-4bea-7f70-3459-24a8added23b@triconet.org> Message-ID: Thanks Wes. Yes, my older iMac has an audio input and a surprisingly good soundcard. The reason I need the interface now is that my newer MacBook Pro doesn?t have a mic jack, so an external USB device is the only practical option. Ideally the USB interface would be USB-C, but I don?t think much will be lost in the conversion to USB A. Thanks again to everybody who responded, Eric, KG6MZS > On Jun 16, 2020, at 5:17 AM, Wes wrote: > > I should have stated for KG6MZS that my computers do have audio inputs to the internal cards. From ed.n3cw at gmail.com Tue Jun 16 11:25:43 2020 From: ed.n3cw at gmail.com (Ed G) Date: Tue, 16 Jun 2020 11:25:43 -0400 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: References: <5ee8d296.1c69fb81.1b178.f19f@mx.google.com> Message-ID: <5ee8e478.1c69fb81.292c0.a00d@mx.google.com> Hi Adrian, Yes, I also substituted a new piece of coax of different length going right from the K3 to the KPA1500 input?same SWR anomaly still observed. --Ed, N3CW? Sent from Mail for Windows 10 From: Adrian Sent: Tuesday, June 16, 2020 11:09 AM To: Ed G; Larry (K8UT); elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters Just curious to see if you have tried a different length jumper (coax patch lead between radio & amp) to see if you get the same result? ? On 17/6/20 12:09 am, Ed G wrote: > This morning I put my DL2K dummy load right on the KPA1500 amp output (tried both ANT1 and ANT2)?I am still seeing the same SWR anomaly, where lower drive levels are giving high SWR readings on the KPA1500 display. By putting the dummy load right at the KPA1500 output, I eliminated a bunch of coax cables and switchboxes. > > So at this point the issue appears to be one internal to the KPA1500. Also appears to be not related to any previously-known high power RF causes, as in my case the problem is there at low drive levels and goes away at maximum drive/RF out. So I remain puzzled. > > --Ed, N3CW? > > > Sent from Mail for Windows 10 > > From: Larry (K8UT) > Sent: Monday, June 15, 2020 9:33 PM > To: ed.n3cw at gmail.com; elecraft at mailman.qth.net > Subject: Re[2]: [Elecraft] KPA1500 Operation on 6 Meters > > Ed, > > Your dummy load choices at 1500 watts range from expensive and good (Bird) to cheap and not-so-good. For example the MFJ-264 is listed as handling 1500 watts but if you read the fine print (the derating curve printed on its case ) you're limited to 8 seconds at 1500 watts. And each time you stress that dummy load its resistor value climbs by a few ohms. > > Frustrated with the commercial options available, I built a dummy load using a huge heatsink from a salvage VHF transmitter and a series/parallel combination of four 50 ohm 250 watt resistors purchased on eBay. > > https://www.ebay.com/itm/1PCS-Anaren-RFP-250-50RM-RFP250-50-RF-Power-Flanged-Resistors-250-Watts-50-ohm/133028134252?hash=item1ef9183d6c:g:uHQAAOSwyFhcvsvw > > -larry (K8UT) > > ------ Original Message ------ > From: "Ed G" > To: "Larry (K8UT)" ; "elecraft at mailman.qth.net" > Sent: 2020-06-15 10:57:32 AM > Subject: RE: [Elecraft] KPA1500 Operation on 6 Meters > > Hi Larry, > ???? Yes, exact same problem is there with a known good dummy load in place of the Steppir yagi I normally use. > --Ed? > > > Sent from Mail for Windows 10 > > From: Larry (K8UT) > Sent: Monday, June 15, 2020 10:09 AM > To: Ed G; elecraft at mailman.qth.net > Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters > > Ed, > > Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of > drive. Suggest you test into a dummy load to see if the problem goes > away, which would suggest some issue with power level into the feedline > or antenna. > > -larry (K8UT) > > > ------ Original Message ------ > From: "Ed G" > To: "elecraft at mailman.qth.net" > Sent: 2020-06-15 9:48:55 AM > Subject: [Elecraft] KPA1500 Operation on 6 Meters > >> Folks, >> ????? I am trying to understand some odd KPA1500 operation on 6 meters.? When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level.? This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. >> ????? For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display.? As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR.? 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way?? I do not see this oddity on any other bands. >> ????? I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. >> --Ed? >> >> >> >> >> -- >> This email has been checked for viruses by Avast antivirus software. >> https://www.avast.com/antivirus >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k8ut at charter.net > > > > Virus-free. www.avast.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to vk4tux at gmail.com From scholl at scholl.org Tue Jun 16 11:29:49 2020 From: scholl at scholl.org (cbscholl) Date: Tue, 16 Jun 2020 08:29:49 -0700 (MST) Subject: [Elecraft] Spurs on 6 meters on FT8 In-Reply-To: References: <1591975512827-0.post@n2.nabble.com> <1592251085419-0.post@n2.nabble.com> Message-ID: <1592321389437-0.post@n2.nabble.com> I have an older K3 ( under 3000) so I do not have the newer KPA3A. Several yeas ago I had to replace at least one of the driver transistors. At that time I also changed some transformers either on the driver or final board. I do not remember without looking but the nature of the wire change was either to or from enameled. I also recently installed gold pins because the pins leading from the main board to the interface board to the KPA3 had tarnished. Those are the only changes that I have made to the TX side since it had been sent back to the factory by the prior owner. Barney K3LA -- Sent from: http://elecraft.365791.n2.nabble.com/ From paul at paulbaldock.com Tue Jun 16 11:33:41 2020 From: paul at paulbaldock.com (Paul Baldock) Date: Tue, 16 Jun 2020 08:33:41 -0700 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: <5ee8d77d.1c69fb81.7ed10.6a51@mx.google.com> References: <5ee8d77d.1c69fb81.7ed10.6a51@mx.google.com> Message-ID: <5ee8e682.1c69fb81.25612.4710@mx.google.com> At 07:30 AM 6/16/2020, you wrote: >So, summary question for the KPA1500 amp designers: With 5 watts >drive and the amp in STBY, the KPA1500 display reads the correct 1.3:1 SWR. I think the designers will tell you that the SWR meter does not read well until you have about 20-30 watts passing through it. Here's what mine reads in STBY, in to precision 100W dummy load connected on the back of the Amp (no coax involved) at 50.1MHz. 60W 1.3 30W 1.3 24W 1.3 18W 1.2 12W 1.2 6W 1.0 Here's what mine reads in OPER, in to a "cantenna" 1000W dummy load at 50.1MHz. 106W 1.3 314W 1.3 447W 1.2 693W 1.2 1071W 1.2 You will see that the AMP SWR meter reads 1.2-1.3 all the way from 12W to 1071W. It should of read ofcourse 1.0 in to the precision dummy load, not 1.3. It has worked this way since being born about 2 years ago. I called Elecraft to ask if there was an adjustment for this, and they said no. By the way on 29MHz in to the precision load the internal SWR meter reads 1.1, and then from 24.9MHz to 1.8MHz reads 1.0. Assuming your LP100 sensor is connected directly to the back of the AMP (no coax involved) and always reads the same at all power levels then I agree your AMP has an internal problem. Good luck - Paul KW7Y From jim at audiosystemsgroup.com Tue Jun 16 12:32:28 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 16 Jun 2020 09:32:28 -0700 Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: <408BC243-1262-40E8-9D26-40E5E5C2D4C5@hollywoodtitle.com> References: <15155537-c0c9-02ce-75f5-6c78821dd506@triconet.org> <18B65FC4-7EE0-4B95-9DC1-D45104D2B385@hollywoodtitle.com> <408BC243-1262-40E8-9D26-40E5E5C2D4C5@hollywoodtitle.com> Message-ID: <2aaa90cd-1ac6-0b53-682b-cc57b21d8844@audiosystemsgroup.com> On 6/16/2020 8:06 AM, Eric KG6MZS wrote: > Interesting. So what level do you recommend? Sorry, forgot to finish that thought. Level should be adjusted so that the green bar stays in the range of 70-75 dB with the strongest signals filling the display, but never turning red, which indicates digital clip. On 6/16/2020 5:17 AM, Wes wrote: > And when I spoke of digital modes, I meant RTTY, the only one I > seriously use. The same concerns apply to the decoding of weak RTTY signals. 73, Jim K9YC From pincon at erols.com Mon Jun 15 23:32:54 2020 From: pincon at erols.com (Charlie T) Date: Mon, 15 Jun 2020 23:32:54 -0400 Subject: [Elecraft] K3s discontinued? In-Reply-To: References: Message-ID: <00b501d6438e$d5d0db60$81729220$@erols.com> I don't understand the "shock" at the K4 pricing. If you "load-up" a K3S with all the options you'd have to buy that are included in the K4, AND add a P3, with VGA & transmit monitor, I think you'll find the K4 is a BARGAIN! 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Wayne Burdick Sent: Monday, June 15, 2020 11:24 PM To: Gary Gregory Cc: Elecraft Reflector Subject: Re: [Elecraft] K3s discontinued? Gary, VK1ZZ, wrote: > I was hoping to add a K3s to my current setup (K3 #679) but that > appears to be out of the question dammit. Hi Gary, We sold the last K3S, I believe, but we'll have a number of upgraded, fully warranted K3's available for purchase on the web site sometime soon. Some were used for DXpeditions. > Was there a reason why the K3s was discontinued? Yes; we felt it was time to create a new, hybrid SDR with a large, integrated touch screen and virtually unlimited hardware/software expansion capability. The K3/K3S had a good run -- over 12 years. During that time we created many options and accessories and released dozens of free firmware upgrades. Everything we learned from that experience, plus a lot of new R&D, is being incorporated into the K4. (It's an exciting radio. For me, every morning it's a battle of wills to stop playing with it and get my work done :) We're looking forward to getting the K4 into customers' hands. Our suppliers are coming back on line. And so are we ... but we're prioritizing the health of our staff, which requires some heroics from the facilities department. 73, Wayne N6KR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pincon at erols.com From k5wa at comcast.net Tue Jun 16 13:15:37 2020 From: k5wa at comcast.net (K5WA) Date: Tue, 16 Jun 2020 12:15:37 -0500 Subject: [Elecraft] K3s discontinued? Message-ID: <02bb01d64401$c15ecd40$441c67c0$@comcast.net> Gary, There are a good number of extremely loaded ?pre-owned? K3 and K3S units available these days. I?ve seen a bare bones K3 for a little as $1300 USD and I sold my completely loaded contesting K3s for barely over $2000 so a GREAT deal can be had. It would be worth the risk of an eBay purchase to pick up one of these units and load it up with upgrades/accessories. Some of the sales on eBay are rigs of estate sales and the seller has no clue what he is selling. One guy had a description of a K3 ?receiver? so I asked him if the transmitter wasn?t working?he didn?t know it could transmit. Maybe it couldn?t but it was so cheap that buying it and sending it in for repair would be very reasonable if I couldn?t have fixed it myself. I don?t know if you have kept up with all the upgrades that were available for your #679 over the years but I had #234 and #5xx something that were all brought up to current standards. You would need some pretty good test equipment to notice much of a performance difference between them and new K3S. They were VERY competitive and still are for someone else while I?m waiting on a pair of K4s to replace them. If I end up not liking my new K4s (not very likely), I always know I can sell them and revert back to ?pre-owned? K3 models and probably make money. ?. Good luck, Bob K5WA > As one who normally does not buy unwanted used equipment, I was hoping to > add a K3s to my current setup (K3 #679) but that appears to be out of the > question dammit. > > Gary > > VK1ZZ From w6ipa at poxika.net Tue Jun 16 13:17:41 2020 From: w6ipa at poxika.net (W6IPA) Date: Tue, 16 Jun 2020 10:17:41 -0700 Subject: [Elecraft] K3s discontinued? In-Reply-To: <00b501d6438e$d5d0db60$81729220$@erols.com> References: <00b501d6438e$d5d0db60$81729220$@erols.com> Message-ID: <747C6467-9D17-4F13-A5EB-D382B3BD96F8@poxika.net> This is probably true in term of value. I am also on the opinion that having an option between the K2 and the K4 makes sense, even if it doesn?t have all the bells and whistles. Like having a kx2 and kx3. JC/W6IPA. > On Jun 15, 2020, at 8:32 PM, Charlie T wrote: > > I don't understand the "shock" at the K4 pricing. > > If you "load-up" a K3S with all the options you'd have to buy that are > included in the K4, AND add a P3, with VGA & transmit monitor, > I think you'll find the K4 is a BARGAIN! > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On > Behalf Of Wayne Burdick > Sent: Monday, June 15, 2020 11:24 PM > To: Gary Gregory > > Cc: Elecraft Reflector > > Subject: Re: [Elecraft] K3s discontinued? > > Gary, VK1ZZ, wrote: > >> I was hoping to add a K3s to my current setup (K3 #679) but that >> appears to be out of the question dammit. > > > Hi Gary, > > We sold the last K3S, I believe, but we'll have a number of upgraded, fully > warranted K3's available for purchase on the web site sometime soon. Some > were used for DXpeditions. > > >> Was there a reason why the K3s was discontinued? > > Yes; we felt it was time to create a new, hybrid SDR with a large, > integrated touch screen and virtually unlimited hardware/software expansion > capability. > > The K3/K3S had a good run -- over 12 years. During that time we created many > options and accessories and released dozens of free firmware upgrades. > Everything we learned from that experience, plus a lot of new R&D, is being > incorporated into the K4. (It's an exciting radio. For me, every morning > it's a battle of wills to stop playing with it and get my work done :) > > We're looking forward to getting the K4 into customers' hands. Our suppliers > are coming back on line. And so are we ... but we're prioritizing the health > of our staff, which requires some heroics from the facilities department. > > 73, > Wayne > N6KR > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to pincon at erols.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6ipa at poxika.net From kthreebo at gmail.com Tue Jun 16 13:25:32 2020 From: kthreebo at gmail.com (barry halterman) Date: Tue, 16 Jun 2020 13:25:32 -0400 Subject: [Elecraft] K3s for sale Message-ID: I sold the Kx3 and Px3, however I still need a good home for the K3s. It is very clean, none smoker, and has extra filters BUT no ATU or DVR. Serious inquiries only. Thanks for reading Barry K3bo From wes_n7ws at triconet.org Tue Jun 16 13:54:51 2020 From: wes_n7ws at triconet.org (Wes) Date: Tue, 16 Jun 2020 10:54:51 -0700 Subject: [Elecraft] K3s discontinued? In-Reply-To: <00b501d6438e$d5d0db60$81729220$@erols.com> References: <00b501d6438e$d5d0db60$81729220$@erols.com> Message-ID: <941d7a68-f224-61c3-4bad-7144076cbd5b@triconet.org> Speaking of pricing shock, two weeks ago I took, "Sparky", my little 18-pound Poodle-mix dog to his favorite dog park.? Inside the enclosure there is a half-buried piece of 3-foot diameter concrete pipe that makes a tunnel for the dogs to run through.? He ran in and immediately yipped, came out and ran to the far end of the enclosure faster that I've ever seen him go.? I ran to the pipe and discovered a very agitated Diamondback rattlesnake, buzzing away.? I gathered up Sparky and discovered puncture wounds right on his snout. Fortunately, our vet's office was ten minutes away.? They are using "curb service" with the virus issue so they took in the dog and my credit card.? Once they ran the card for a $1K deposit they began treatment.? Several days and nights of agony for us and the dog later, he is doing fine with just a couple of scabs left on the nose.? The final cost was $3,200, almost exactly the price I paid for my K3S. Wes? N7WS ? On 6/15/2020 8:32 PM, Charlie T wrote: > I don't understand the "shock" at the K4 pricing. > > If you "load-up" a K3S with all the options you'd have to buy that are > included in the K4, AND add a P3, with VGA & transmit monitor, > I think you'll find the K4 is a BARGAIN! > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Wayne Burdick > Sent: Monday, June 15, 2020 11:24 PM > To: Gary Gregory > Cc: Elecraft Reflector > Subject: Re: [Elecraft] K3s discontinued? > > Gary, VK1ZZ, wrote: > >> I was hoping to add a K3s to my current setup (K3 #679) but that >> appears to be out of the question dammit. > > Hi Gary, > > We sold the last K3S, I believe, but we'll have a number of upgraded, fully > warranted K3's available for purchase on the web site sometime soon. Some > were used for DXpeditions. > > >> Was there a reason why the K3s was discontinued? > Yes; we felt it was time to create a new, hybrid SDR with a large, > integrated touch screen and virtually unlimited hardware/software expansion > capability. > > The K3/K3S had a good run -- over 12 years. During that time we created many > options and accessories and released dozens of free firmware upgrades. > Everything we learned from that experience, plus a lot of new R&D, is being > incorporated into the K4. (It's an exciting radio. For me, every morning > it's a battle of wills to stop playing with it and get my work done :) > > We're looking forward to getting the K4 into customers' hands. Our suppliers > are coming back on line. And so are we ... but we're prioritizing the health > of our staff, which requires some heroics from the facilities department. > > 73, > Wayne > N6KR > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to pincon at erols.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wes_n7ws at triconet.org From c-hawley at illinois.edu Tue Jun 16 14:15:46 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Tue, 16 Jun 2020 18:15:46 +0000 Subject: [Elecraft] K3s discontinued? In-Reply-To: <00b501d6438e$d5d0db60$81729220$@erols.com> References: , <00b501d6438e$d5d0db60$81729220$@erols.com> Message-ID: <0EFCC1D1-8E25-4C4E-B468-C6E812F704AA@illinois.edu> I wondered too, since the K4 was almost a bargain with it's features over the K3 with options price wise. I watched the video...ELECRAFT K4 IN DEPTH with WA6HHQ at Waters & Stanton Ltd Portsmouth UK https://www.youtube.com/watch?v=r-PHL68WIdg and got anxious to get one when they quit hogging them for themselves. :) Chuck KE9UW c-hawley at illinois.edu Sent from my iPad On Jun 16, 2020, at 11:56 AM, Charlie T wrote: ?I don't understand the "shock" at the K4 pricing. If you "load-up" a K3S with all the options you'd have to buy that are included in the K4, AND add a P3, with VGA & transmit monitor, I think you'll find the K4 is a BARGAIN! 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Wayne Burdick Sent: Monday, June 15, 2020 11:24 PM To: Gary Gregory Cc: Elecraft Reflector Subject: Re: [Elecraft] K3s discontinued? Gary, VK1ZZ, wrote: I was hoping to add a K3s to my current setup (K3 #679) but that appears to be out of the question dammit. Hi Gary, We sold the last K3S, I believe, but we'll have a number of upgraded, fully warranted K3's available for purchase on the web site sometime soon. Some were used for DXpeditions. Was there a reason why the K3s was discontinued? Yes; we felt it was time to create a new, hybrid SDR with a large, integrated touch screen and virtually unlimited hardware/software expansion capability. The K3/K3S had a good run -- over 12 years. During that time we created many options and accessories and released dozens of free firmware upgrades. Everything we learned from that experience, plus a lot of new R&D, is being incorporated into the K4. (It's an exciting radio. For me, every morning it's a battle of wills to stop playing with it and get my work done :) We're looking forward to getting the K4 into customers' hands. Our suppliers are coming back on line. And so are we ... but we're prioritizing the health of our staff, which requires some heroics from the facilities department. 73, Wayne N6KR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pincon at erols.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-hawley at illinois.edu From w7tr at outlook.com Tue Jun 16 15:01:15 2020 From: w7tr at outlook.com (Todd KH2TJ) Date: Tue, 16 Jun 2020 19:01:15 +0000 Subject: [Elecraft] Q codes In-Reply-To: References: , Message-ID: It was an unwritten rule, but the use of ZBM2 on any circuit was a big no-no, or at least during my time with Naval Security Group. Anytime we had trubs with an outlying station, we would gather up the translog and any other copy of the Comms and up the chain of command it would go...I think I only saw a ZBM2 fly by once while I was out on Guam. It went across one of IO circuits during GW I. Heard thru the grapevine weeks later that Op was relieved...We were required to maintain a copy of the ACP-131 on the watch floor. It made for some interesting reading on slow mid-watches. I recall we came up with all sorts of Q/Z codes that we Zapped back and forth. I think we used INT QBF Mate K quite often in place of ZBM2 ? Always a good laugh to get a Chief of the Watch to ask what the hell was QBF... There were all kinds of Z codes in use too that we would throw out just to mess with the ops on the other end...Great times during a slow midwatch! Forget off hand what the Z code was for "Your totally distorted"! but after a weeks worth of watchstanding, I would treat the younger Marines on my watch to total distortion down at the E club on the start of our off time and we'd all get to the "point of no return" (forgot that Z code too!)... 73, Todd KH2TJ ________________________________ Good point Andy! QLF seems to refer to sending ability. ZBM2 refers to overall operating ability ... I think ... ACP's 126 and 131 leave a lot to the reader's imagination. From rosen.bruce at gmail.com Tue Jun 16 15:19:11 2020 From: rosen.bruce at gmail.com (K1FFX) Date: Tue, 16 Jun 2020 12:19:11 -0700 (MST) Subject: [Elecraft] Best Audio Interfaces 2020? In-Reply-To: References: Message-ID: <1592335151569-0.post@n2.nabble.com> I have two of these: https://www.amazon.com/Behringer-U-Control-UCA202-Ultra-Low-Interface/dp/B000KW2YEI I've used them on Windows, Mac OS, and Raspberry Pi ... just plug-and-play, no drivers needed anywhere. Also use them with my sound system for connecting my laptop to an analog audio mixer. The UCA202 also has an optical stereo output, which I've used. My experience using either Windows or Mac OS is that it's much easier to interface with an external USB soundcard than it is using the audio in/out jacks on the PC. Nice device for not much money. Regards - Bruce K1FFX ----- Bruce Rosen K1FFX K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 -- Sent from: http://elecraft.365791.n2.nabble.com/ From k6dgw at foothill.net Tue Jun 16 15:42:51 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Tue, 16 Jun 2020 12:42:51 -0700 Subject: [Elecraft] Q codes In-Reply-To: References: Message-ID: <15b1c512-13b0-62a5-8b38-7a86d865ae54@foothill.net> ZPA: Your speech is distorted QNR: I am approaching my point of no return 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/16/2020 12:01 PM, Todd KH2TJ wrote: > ?Forget off hand what the Z code was for > "Your totally distorted"!? but after a weeks worth of watchstanding,? > I would treat the younger Marines on my watch to total distortion down > at the E club on the start of our off time and we'd all get to the > "point of no return" (forgot that Z code too!)... > > 73, Todd KH2TJ > From gkidder at ilstu.edu Tue Jun 16 16:25:31 2020 From: gkidder at ilstu.edu (George Kidder) Date: Tue, 16 Jun 2020 16:25:31 -0400 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: <5ee8e478.1c69fb81.292c0.a00d@mx.google.com> References: <5ee8d296.1c69fb81.1b178.f19f@mx.google.com> <5ee8e478.1c69fb81.292c0.a00d@mx.google.com> Message-ID: Internal oscillation suppressed by higher drive level?? What does it do in operate with zero drive? On 6/16/2020 11:25 AM, Ed G wrote: > [This message came from an external source. If suspicious, report to abuse at ilstu.edu] > > Hi Adrian, > Yes, I also substituted a new piece of coax of different length going right from the K3 to the KPA1500 input?same SWR anomaly still observed. > --Ed, N3CW? > > > Sent from Mail for Windows 10 > > From: Adrian > Sent: Tuesday, June 16, 2020 11:09 AM > To: Ed G; Larry (K8UT); elecraft at mailman.qth.net > Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters > > Just curious to see if you have tried a different length jumper (coax > patch lead between radio & amp) to see if you get the same result ? > > On 17/6/20 12:09 am, Ed G wrote: >> This morning I put my DL2K dummy load right on the KPA1500 amp output (tried both ANT1 and ANT2)?I am still seeing the same SWR anomaly, where lower drive levels are giving high SWR readings on the KPA1500 display. By putting the dummy load right at the KPA1500 output, I eliminated a bunch of coax cables and switchboxes. >> >> So at this point the issue appears to be one internal to the KPA1500. Also appears to be not related to any previously-known high power RF causes, as in my case the problem is there at low drive levels and goes away at maximum drive/RF out. So I remain puzzled. >> >> --Ed, N3CW? >> >> >> Sent from Mail for Windows 10 >> >> From: Larry (K8UT) >> Sent: Monday, June 15, 2020 9:33 PM >> To: ed.n3cw at gmail.com; elecraft at mailman.qth.net >> Subject: Re[2]: [Elecraft] KPA1500 Operation on 6 Meters >> >> Ed, >> >> Your dummy load choices at 1500 watts range from expensive and good (Bird) to cheap and not-so-good. For example the MFJ-264 is listed as handling 1500 watts but if you read the fine print (the derating curve printed on its case ) you're limited to 8 seconds at 1500 watts. And each time you stress that dummy load its resistor value climbs by a few ohms. >> >> Frustrated with the commercial options available, I built a dummy load using a huge heatsink from a salvage VHF transmitter and a series/parallel combination of four 50 ohm 250 watt resistors purchased on eBay. >> >> https://www.ebay.com/itm/1PCS-Anaren-RFP-250-50RM-RFP250-50-RF-Power-Flanged-Resistors-250-Watts-50-ohm/133028134252?hash=item1ef9183d6c:g:uHQAAOSwyFhcvsvw >> >> -larry (K8UT) >> >> ------ Original Message ------ >> From: "Ed G" >> To: "Larry (K8UT)" ; "elecraft at mailman.qth.net" >> Sent: 2020-06-15 10:57:32 AM >> Subject: RE: [Elecraft] KPA1500 Operation on 6 Meters >> >> Hi Larry, >> Yes, exact same problem is there with a known good dummy load in place of the Steppir yagi I normally use. >> --Ed? >> >> >> Sent from Mail for Windows 10 >> >> From: Larry (K8UT) >> Sent: Monday, June 15, 2020 10:09 AM >> To: Ed G; elecraft at mailman.qth.net >> Subject: Re: [Elecraft] KPA1500 Operation on 6 Meters >> >> Ed, >> >> Not seeing that here. SWR value unchanged at 10, 20, 30, 35 watts of >> drive. Suggest you test into a dummy load to see if the problem goes >> away, which would suggest some issue with power level into the feedline >> or antenna. >> >> -larry (K8UT) >> >> >> ------ Original Message ------ >> From: "Ed G" >> To: "elecraft at mailman.qth.net" >> Sent: 2020-06-15 9:48:55 AM >> Subject: [Elecraft] KPA1500 Operation on 6 Meters >> >>> Folks, >>> I am trying to understand some odd KPA1500 operation on 6 meters. When setting the power output of my K3 to give varying amounts of drive to the KPA1500, I am seeing SWR as displayed on the KPA1500 changing by a significant amount depending on the drive level. This is with the KPA1500 tuner bypassed. An LP-100A on the output of the KPA1500 is also used and displays the correct low SWR at all drive levels that I would expect to be seeing on the KPA1500 display. >>> For example, with 5 watts drive from the K3, I see 1.3 SWR on the LP-100, and 2.5:1 on the KPA1500 display. As I increase drive, the KPA1500 SWR display goes down proportionally, until I get to about 40 watts drive. At the 40 watt drive level, I am seeing a nice healthy 1600 watts output, and both the LP-100 and the KPA1500 are showing the same 1.3 SWR. 15 watts drive shows 1.3 on the LP100 and 2.0:1 on the KPA1500 display. So I am not sure why the SWR sensing and display in the KPA1500 is behaving this way? I do not see this oddity on any other bands. >>> I might also add that attempting to get the KPA1500 internal tuner to bring down the high SWR as seen on the KPA1500 results in a drop in SWR displayed on the KPA1500 to where SWR almost equals that on the LP-100, but using the tuner I would expect that to be even better. >>> --Ed? >>> >>> >>> >>> >>> -- >>> This email has been checked for viruses by Avast antivirus software. >>> https://www.avast.com/antivirus >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to k8ut at charter.net >> >> >> Virus-free. www.avast.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to vk4tux at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gkidder at ilstu.edu From vk4tux at gmail.com Tue Jun 16 17:57:38 2020 From: vk4tux at gmail.com (Adrian) Date: Wed, 17 Jun 2020 07:57:38 +1000 Subject: [Elecraft] KPA1500 Operation on 6 Meters In-Reply-To: <5ee8e478.1c69fb81.292c0.a00d@mx.google.com> References: <5ee8d296.1c69fb81.1b178.f19f@mx.google.com> <5ee8e478.1c69fb81.292c0.a00d@mx.google.com> Message-ID: <7247a0aa-dc85-7c91-ed0d-bc2552b3bc4c@gmail.com> Ok on that, My best guess now, as I think you are thinking, is that some component(s) in the amp 6m circuitry are breaking down, changing impedance in the amp output sector. Do you have a schematic, or have the link to it? A good look at that may give more clues ? On 17/6/20 1:25 am, Ed G wrote: > > Hi Adrian, > > ???? Yes, I also substituted a new piece of coax of different length > going right from the K3 to the KPA1500 input?same SWR anomaly still > observed. > > --Ed, N3CW? > > Sent from Mail for > Windows 10 > > *From: *Adrian > *Sent: *Tuesday, June 16, 2020 11:09 AM > *To: *Ed G ; Larry (K8UT) > ; elecraft at mailman.qth.net > > *Subject: *Re: [Elecraft] KPA1500 Operation on 6 Meters > > Just curious to see if you have tried a different length jumper (coax > > patch lead between radio & amp) to see if you get the same result? ? > > > > > > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> From AB1DD at comcast.net Tue Jun 16 19:02:37 2020 From: AB1DD at comcast.net (AB1DD) Date: Tue, 16 Jun 2020 19:02:37 -0400 Subject: [Elecraft] Field Day and clean radios Message-ID: Hi All, Question on cleaning a K3, specifically during Field Day. We need to clean the K3 before a change of operators. What is safe, IE not take off the button labels? Alcohol? We will take the rubber ring off the tuning nob. What's good? -- 73, Carl AB1DD Resistance is futile. (don't know about reactance, though) From W2xj at w2xj.net Tue Jun 16 19:27:34 2020 From: W2xj at w2xj.net (W2xj) Date: Tue, 16 Jun 2020 19:27:34 -0400 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: <4521282B-C4B3-4069-BDC8-F22AE456F7B8@w2xj.net> handheld UV sanitizer. Sent from my iPad > On Jun 16, 2020, at 7:03 PM, AB1DD wrote: > > ?Hi All, > > Question on cleaning a K3, specifically during Field Day. We need to clean the K3 before a change of operators. What is safe, IE not take off the button labels? Alcohol? We will take the rubber ring off the tuning nob. > > What's good? > > -- > > 73, > Carl > AB1DD > > Resistance is futile. > (don't know about reactance, though) > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net From wes_n7ws at triconet.org Tue Jun 16 19:31:39 2020 From: wes_n7ws at triconet.org (Wes) Date: Tue, 16 Jun 2020 16:31:39 -0700 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: If you're going to worry about it, nitrile gloves. Wes? N7WS On 6/16/2020 4:02 PM, AB1DD wrote: > Hi All, > > Question on cleaning a K3, specifically during Field Day. We need to clean the > K3 before a change of operators. What is safe, IE not take off the button > labels? Alcohol? We will take the rubber ring off the tuning nob. > > What's good? > From mvn at VanNorman.com Tue Jun 16 19:36:17 2020 From: mvn at VanNorman.com (Michael Van Norman) Date: Tue, 16 Jun 2020 16:36:17 -0700 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: This sounds like the right answer.? Have operators use gloves and then clean once at the end. /Mike K6VN On 6/16/20 16:31, Wes wrote: > If you're going to worry about it, nitrile gloves. > > Wes? N7WS > > On 6/16/2020 4:02 PM, AB1DD wrote: >> Hi All, >> >> Question on cleaning a K3, specifically during Field Day. We need to >> clean the K3 before a change of operators. What is safe, IE not take >> off the button labels? Alcohol? We will take the rubber ring off the >> tuning nob. >> >> What's good? >> From wunder at wunderwood.org Tue Jun 16 19:39:59 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Tue, 16 Jun 2020 16:39:59 -0700 Subject: [Elecraft] Field Day and clean radios In-Reply-To: <4521282B-C4B3-4069-BDC8-F22AE456F7B8@w2xj.net> References: <4521282B-C4B3-4069-BDC8-F22AE456F7B8@w2xj.net> Message-ID: UV could be rough on the plastic. I strongly agree with the suggestion to use nitrile gloves. That also puts the responsibility onto the guest operator instead of onto the person who tried to sanitize the radio. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 16, 2020, at 4:27 PM, W2xj wrote: > > handheld UV sanitizer. > > Sent from my iPad > >> On Jun 16, 2020, at 7:03 PM, AB1DD wrote: >> >> ?Hi All, >> >> Question on cleaning a K3, specifically during Field Day. We need to clean the K3 before a change of operators. What is safe, IE not take off the button labels? Alcohol? We will take the rubber ring off the tuning nob. >> >> What's good? >> >> -- >> >> 73, >> Carl >> AB1DD >> >> Resistance is futile. >> (don't know about reactance, though) >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w2xj at w2xj.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From gthornton at thorntonmostullaw.com Tue Jun 16 19:47:06 2020 From: gthornton at thorntonmostullaw.com (George Thornton) Date: Tue, 16 Jun 2020 23:47:06 +0000 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: Assuming this is not just keying you are also going to have to disinfect the microphone. You also have issues with computer keyboards for logging. For working with computers I would think the commercial equipment wipes would be OK. I typically wet paper towels with alcohol so it is damp but not dripping. I have used that method to clean screens and keyboards on laptops with no problems. I do think the virus is pretty vulnerable outside the human body. 70 percent or higher concentration of alcohol wiped across a surface should kill any virus that got there. -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Michael Van Norman Sent: Tuesday, June 16, 2020 4:36 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Field Day and clean radios This sounds like the right answer.? Have operators use gloves and then clean once at the end. /Mike K6VN On 6/16/20 16:31, Wes wrote: > If you're going to worry about it, nitrile gloves. > > Wes? N7WS > > On 6/16/2020 4:02 PM, AB1DD wrote: >> Hi All, >> >> Question on cleaning a K3, specifically during Field Day. We need to >> clean the K3 before a change of operators. What is safe, IE not take >> off the button labels? Alcohol? We will take the rubber ring off the >> tuning nob. >> >> What's good? >> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to gthornton at thorntonmostullaw.com From w6sx at arrl.net Tue Jun 16 19:47:48 2020 From: w6sx at arrl.net (Hank Garretson) Date: Tue, 16 Jun 2020 23:47:48 +0000 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: <4521282B-C4B3-4069-BDC8-F22AE456F7B8@w2xj.net> Message-ID: It is endless. Sanitize the radio, the keyboard, the pencil, the paper, the desk, the chair, the mouse, the ... Better bet. Keep your blooming hands away from your face! Don't ever touch your face! Contest, Cope Exuberantly, Hank, W6SX From k6dgw at foothill.net Tue Jun 16 20:00:59 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Tue, 16 Jun 2020 17:00:59 -0700 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: <1e9c45ca-739c-716b-80de-c59310f36b7b@foothill.net> I volunteered at the local blood center for 15 years or so.? They had wipes [can't remember the name] for hands, and Caviwipes for surfaces. https://www.metrex.com/en-us/products/surface-disinfectants/caviwipes One can should last all FD and then some, there's a big roll inside soaked in the disinfectant.? They seemed safe for any surface, we used them to wipe down the apheresis machines which were covered with printed legends and the like. However, I'd recommend nitrile gloves for all the operators.? They go inside-out when removed, easy disposal, personal hand wipes for after removal.? Clean the radios, mics, paddles, keyboards, and monitors/laptops after FD.? This also shifts much of the responsibility for appropriate behavior to the operators. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/16/2020 4:47 PM, George Thornton wrote: > Assuming this is not just keying you are also going to have to disinfect the microphone. You also have issues with computer keyboards for logging. > > For working with computers I would think the commercial equipment wipes would be OK. > > I typically wet paper towels with alcohol so it is damp but not dripping. I have used that method to clean screens and keyboards on laptops with no problems. > > I do think the virus is pretty vulnerable outside the human body. 70 percent or higher concentration of alcohol wiped across a surface should kill any virus that got there. > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Michael Van Norman > Sent: Tuesday, June 16, 2020 4:36 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Field Day and clean radios > > This sounds like the right answer.? Have operators use gloves and then clean once at the end. > > /Mike > K6VN > > On 6/16/20 16:31, Wes wrote: >> If you're going to worry about it, nitrile gloves. >> >> Wes? N7WS >> >> On 6/16/2020 4:02 PM, AB1DD wrote: >>> Hi All, >>> >>> Question on cleaning a K3, specifically during Field Day. We need to >>> clean the K3 before a change of operators. What is safe, IE not take >>> off the button labels? Alcohol? We will take the rubber ring off the >>> tuning nob. >>> >>> What's good? >>> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to gthornton at thorntonmostullaw.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k6dgw at foothill.net From dr.norm.smith at gmail.com Tue Jun 16 20:09:43 2020 From: dr.norm.smith at gmail.com (Norman Smith) Date: Tue, 16 Jun 2020 17:09:43 -0700 Subject: [Elecraft] updated K3 Message-ID: A couple of yrs ago I bought a K3, in great condition, from a friend who was entering an assisted care facility. I sent it to elecraft to upgrade to a k3s equivalent with all updates incl a second receiver and full compliment of filters. The rules in my HOA changed eliminating the possibility of an antenna. The radio has sat in the unopened box as received back from Elecraft, fully loaded and unpacked. I"m wondering what would be a fair price range to ask for the radio? all comments welcome Norm Smith K7BYV Virus-free. www.avast.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> From pvandyke1953 at gmail.com Tue Jun 16 20:14:16 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Tue, 16 Jun 2020 20:14:16 -0400 Subject: [Elecraft] 80 Meter Net 7/14 Message-ID: We had 5 show up and put up with the new log issues THANK YOU ALL!! NC0JW got in long haul from CO See you next Sunday night 0100z 3.940 +/- 73's Paul KB9AVO From vk1zzgary at gmail.com Tue Jun 16 20:54:20 2020 From: vk1zzgary at gmail.com (Gary Gregory) Date: Wed, 17 Jun 2020 10:54:20 +1000 Subject: [Elecraft] k4 price Shock Message-ID: lol, well perhaps I should put this in simple perspective: Figures are Australian Dollars which can be made to look like Banana republic pesos..TIC ok Purchase price K4D in AUD $6,850.00 freight in USD $ ????? 10% GST on both K4 plus freight: minimum $685.00 total Minimum Cost landed will be in the order of $7,535 (still got the freight cost to add) Price Shock?...Yep,..value for money?..you betcha. Absolutely going to be a game changer. reality?..Sad face for me. Not everyone can afford everything they want and as much as I would love to own one, it is not going to happen. I am happy with my K3 with all the options I need and it does a great job every day. let's end this thread now in the interest of not giving Eric extra work :-) 73 gary From W2xj at w2xj.net Tue Jun 16 21:01:49 2020 From: W2xj at w2xj.net (W2xj) Date: Tue, 16 Jun 2020 21:01:49 -0400 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: If that were the case, the radio should never be used outdoors. Sent from my iPad > On Jun 16, 2020, at 7:41 PM, Walter Underwood wrote: > > ?UV could be rough on the plastic. > > I strongly agree with the suggestion to use nitrile gloves. That also puts the responsibility onto the guest operator instead of onto the person who tried to sanitize the radio. > > wunder > K6WRU > Walter Underwood > CM87wj > http://observer.wunderwood.org/ (my blog) > >> On Jun 16, 2020, at 4:27 PM, W2xj wrote: >> >> handheld UV sanitizer. >> >> Sent from my iPad >> >>>> On Jun 16, 2020, at 7:03 PM, AB1DD wrote: >>> >>> ?Hi All, >>> >>> Question on cleaning a K3, specifically during Field Day. We need to clean the K3 before a change of operators. What is safe, IE not take off the button labels? Alcohol? We will take the rubber ring off the tuning nob. >>> >>> What's good? >>> >>> -- >>> >>> 73, >>> Carl >>> AB1DD >>> >>> Resistance is futile. >>> (don't know about reactance, though) >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to w2xj at w2xj.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to wunder at wunderwood.org > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2xj at w2xj.net From vk4tux at gmail.com Tue Jun 16 21:08:29 2020 From: vk4tux at gmail.com (Adrian) Date: Wed, 17 Jun 2020 11:08:29 +1000 Subject: [Elecraft] k4 price Shock In-Reply-To: References: Message-ID: <2da8cd3d-cd9d-d55f-b2ba-5129abe7c7b2@gmail.com> It was far worse before recent AU$ improvement. The main reason I went with the FTDX101MP instead. On 17/6/20 10:54 am, Gary Gregory wrote: > lol, well perhaps I should put this in simple perspective: Figures are > Australian Dollars which can be made to look like Banana > republic pesos..TIC ok > > > Purchase price K4D in AUD $6,850.00 > > freight in USD $ ????? > > 10% GST on both K4 plus freight: minimum $685.00 > > total Minimum Cost landed will be in the order of $7,535 (still got the > freight cost to add) > > Price Shock?...Yep,..value for money?..you betcha. Absolutely going to be a > game changer. reality?..Sad face for me. > > Not everyone can afford everything they want and as much as I would love to > own one, it is not going to happen. I am happy with my K3 with all the > options I need and it does a great job every day. > > let's end this thread now in the interest of not giving Eric extra work :-) > > 73 > gary From dick93117 at gmail.com Tue Jun 16 21:09:19 2020 From: dick93117 at gmail.com (RICHARD Martin) Date: Tue, 16 Jun 2020 18:09:19 -0700 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: UV Wands I checked several LED Chinese uV wands for c band output. They were frauds. Buyer beware. Dick KN6AA On Tue, Jun 16, 2020, 18:02 W2xj wrote: > If that were the case, the radio should never be used outdoors. > > Sent from my iPad > > > On Jun 16, 2020, at 7:41 PM, Walter Underwood > wrote: > > > > ?UV could be rough on the plastic. > > > > I strongly agree with the suggestion to use nitrile gloves. That also > puts the responsibility onto the guest operator instead of onto the person > who tried to sanitize the radio. > > > > wunder > > K6WRU > > Walter Underwood > > CM87wj > > http://observer.wunderwood.org/ (my blog) > > > >> On Jun 16, 2020, at 4:27 PM, W2xj wrote: > >> > >> handheld UV sanitizer. > >> > >> Sent from my iPad > >> > >>>> On Jun 16, 2020, at 7:03 PM, AB1DD wrote: > >>> > >>> ?Hi All, > >>> > >>> Question on cleaning a K3, specifically during Field Day. We need to > clean the K3 before a change of operators. What is safe, IE not take off > the button labels? Alcohol? We will take the rubber ring off the tuning nob. > >>> > >>> What's good? > >>> > >>> -- > >>> > >>> 73, > >>> Carl > >>> AB1DD > >>> > >>> Resistance is futile. > >>> (don't know about reactance, though) > >>> > >>> ______________________________________________________________ > >>> Elecraft mailing list > >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >>> Help: http://mailman.qth.net/mmfaq.htm > >>> Post: mailto:Elecraft at mailman.qth.net > >>> > >>> This list hosted by: http://www.qsl.net > >>> Please help support this email list: http://www.qsl.net/donate.html > >>> Message delivered to w2xj at w2xj.net > >> > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to wunder at wunderwood.org > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to w2xj at w2xj.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dick93117 at gmail.com From wes_n7ws at triconet.org Tue Jun 16 21:11:03 2020 From: wes_n7ws at triconet.org (Wes) Date: Tue, 16 Jun 2020 18:11:03 -0700 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: I'm glad to see such agreement.? Since I used to do a little woodworking I had a half box of 3M N95 masks in my shop when this thing hit.? I also bought nitrile gloves by the box and had about a hundred each of large and small (for my SO) on hand.? Since then, I've purchased a couple of boxes more of each size although the gouging doubled the price on the last batch.? Despite now having hundreds of them, we keep just a couple of pair in the car when we go out and use sanitizer on them when we get back in the car. It doesn't damage the gloves and saves our hands.? I would suggest doing that for the FD operation. Wes? N7WS On 6/16/2020 4:31 PM, Wes wrote: > If you're going to worry about it, nitrile gloves. > > Wes? N7WS > > On 6/16/2020 4:02 PM, AB1DD wrote: >> Hi All, >> >> Question on cleaning a K3, specifically during Field Day. We need to clean >> the K3 before a change of operators. What is safe, IE not take off the button >> labels? Alcohol? We will take the rubber ring off the tuning nob. >> >> What's good? >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wes_n7ws at triconet.org From vk4tux at gmail.com Tue Jun 16 21:20:28 2020 From: vk4tux at gmail.com (Adrian) Date: Wed, 17 Jun 2020 11:20:28 +1000 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: Is it possible that all participants can use their personal laptop for remote control, requiring only the clean of the usb cable, and perhaps microphone during user change? From ardrhi at gmail.com Tue Jun 16 21:29:15 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Tue, 16 Jun 2020 21:29:15 -0400 Subject: [Elecraft] Field Day and clean radios In-Reply-To: References: Message-ID: I use a Verilux UV-C wand. It's the real deal, not a black light sold as a sanitizer. I also have a water purifier that makes a combination of hydrogen peroxide and hypochlorous acid. Put a dose in a liter of water, let it sit for 30 minutes, and it's purified of all but cryptosporidium... But leave it 4 hours and that's dead, too. But put a few doses in a liter of water and don't let it sit, and it's a very good surface disinfectant that won't hurt anything that water won't hurt. It's not bleach, it's the same chlorine compound your white blood cells generate to kill pathogens, and is used in municipal water treatment systems. Cheap disinfectant, made to order. You can get a spray bottle that supposedly does the same just for making disinfectant solution, but the cheap ones are from China and will take a while to arrive. 73, Gwen, NG3P On Tue, Jun 16, 2020, 9:14 PM Wes wrote: > I'm glad to see such agreement. Since I used to do a little woodworking I > had a > half box of 3M N95 masks in my shop when this thing hit. I also bought > nitrile > gloves by the box and had about a hundred each of large and small (for my > SO) on > hand. Since then, I've purchased a couple of boxes more of each size > although > the gouging doubled the price on the last batch. Despite now having > hundreds of > them, we keep just a couple of pair in the car when we go out and use > sanitizer > on them when we get back in the car. > > It doesn't damage the gloves and saves our hands. I would suggest doing > that > for the FD operation. > > Wes N7WS > > On 6/16/2020 4:31 PM, Wes wrote: > > If you're going to worry about it, nitrile gloves. > > > > Wes N7WS > > > > On 6/16/2020 4:02 PM, AB1DD wrote: > >> Hi All, > >> > >> Question on cleaning a K3, specifically during Field Day. We need to > clean > >> the K3 before a change of operators. What is safe, IE not take off the > button > >> labels? Alcohol? We will take the rubber ring off the tuning nob. > >> > >> What's good? > >> > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to wes_n7ws at triconet.org > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com From w6png at yahoo.com Tue Jun 16 21:58:40 2020 From: w6png at yahoo.com (Paul Gacek) Date: Tue, 16 Jun 2020 18:58:40 -0700 Subject: [Elecraft] updated K3 In-Reply-To: References: Message-ID: Here is a link to an eBay search that looks for ?completed? auction (sold) for a K3. https://www.ebay.com/sch/i.html?_from=R40&_nkw=Elecraft+k3&_in_kw=1&_ex_kw=&_sacat=0&LH_Complete=1&_udlo=&_udhi=&_ftrt=901&_ftrv=1&_sabdlo=&_sabdhi=&_samilow=&_samihi=&_sadis=15&_stpos=92656&_sargn=-1%26saslc%3D1&_salic=1&_sop=13&_dmd=1&_ipg=50&_fosrp=1 Might help gauge what others have paid but prices are quite varied depending on supply and demand. K1 and KX1 sell for more now than when available from Elecraft. Paul Gacek W6PNG/M0SNA www.nomadic.blog > On Jun 16, 2020, at 5:20 PM, Norman Smith wrote: > > ?A couple of yrs ago I bought a K3, in great condition, from a friend who > was entering an assisted care facility. I sent it to elecraft to upgrade > to a k3s equivalent with all updates incl a second receiver and full > compliment of filters. The rules in my HOA changed eliminating the > possibility of an antenna. The radio has sat in the unopened box as > received back from Elecraft, fully loaded and unpacked. I"m wondering what > would be a fair price range to ask for the radio? all comments welcome > Norm Smith K7BYV > > > Virus-free. > www.avast.com > > <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From donnieput at gmail.com Wed Jun 17 00:47:39 2020 From: donnieput at gmail.com (Don Putnick) Date: Tue, 16 Jun 2020 21:47:39 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 Message-ID: With the sunset of the K3S, what are the plans for the future of the KPA500 and KAT500? Enquiring minds want to know. 73 Don NA6Z From ny9h at arrl.net Wed Jun 17 08:54:00 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Wed, 17 Jun 2020 08:54:00 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: Message-ID: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> what could they do that would? update them ???????? make them taller like the K4 ???? On 6/17/2020 12:47 AM, Don Putnick wrote: > With the sunset of the K3S, what are the plans for the future of the KPA500 > and KAT500? Enquiring minds want to know. > 73 Don NA6Z > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ny9h at arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From mike.harris at horizon.co.fk Wed Jun 17 09:04:12 2020 From: mike.harris at horizon.co.fk (Mike Harris) Date: Wed, 17 Jun 2020 10:04:12 -0300 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> References: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> Message-ID: <4965cc84-8e66-c8f7-cc35-a26f9fd55bd6@horizon.co.fk> I read it as what would their future availability be, nothing to do with updating. Not uncommon to read about the KPA500 being paired with other transceiver brands. Regards, Mike VP8NO On 17/06/2020 09:54, Bill Steffey NY9H wrote: > what could they do that would? update them ???????? make them taller > like the K4 ???? > > On 6/17/2020 12:47 AM, Don Putnick wrote: >> With the sunset of the K3S, what are the plans for the future of the >> KPA500 >> and KAT500? Enquiring minds want to know. >> 73 Don NA6Z From dick93117 at gmail.com Wed Jun 17 09:40:17 2020 From: dick93117 at gmail.com (RICHARD Martin) Date: Wed, 17 Jun 2020 06:40:17 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <4965cc84-8e66-c8f7-cc35-a26f9fd55bd6@horizon.co.fk> References: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> <4965cc84-8e66-c8f7-cc35-a26f9fd55bd6@horizon.co.fk> Message-ID: Make a 12 VDC version to assist disaster communications. Dick KN6AA On Wed, Jun 17, 2020, 06:06 Mike Harris via Elecraft < elecraft at mailman.qth.net> wrote: > I read it as what would their future availability be, nothing to do with > updating. > > Not uncommon to read about the KPA500 being paired with other > transceiver brands. > > Regards, > > Mike VP8NO > > On 17/06/2020 09:54, Bill Steffey NY9H wrote: > > what could they do that would update them ???? make them taller > > like the K4 ???? > > > > On 6/17/2020 12:47 AM, Don Putnick wrote: > >> With the sunset of the K3S, what are the plans for the future of the > >> KPA500 > >> and KAT500? Enquiring minds want to know. > >> 73 Don NA6Z > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dick93117 at gmail.com From john at kk9a.com Wed Jun 17 09:57:34 2020 From: john at kk9a.com (john at kk9a.com) Date: Wed, 17 Jun 2020 08:57:34 -0500 Subject: [Elecraft] Future of KPA500 & KAT500 Message-ID: <20200617085734.Horde.snpn-bQCm3rWLPJEiGUr1ji@www11.qth.com> How about combining them into a single enclosure? John KK9A Bill Steffey NY9H wrote: what could they do that would update them ???? make them taller like the K4 ???? From c-hawley at illinois.edu Wed Jun 17 10:03:46 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Wed, 17 Jun 2020 14:03:46 +0000 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: Message-ID: Seems like they are just as applicable to the K4 as well. Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Don Putnick Sent: Tuesday, June 16, 2020 11:47 PM To: Elecraft Reflector Subject: [Elecraft] Future of KPA500 & KAT500 With the sunset of the K3S, what are the plans for the future of the KPA500 and KAT500? Enquiring minds want to know. 73 Don NA6Z ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-hawley at illinois.edu From c-hawley at illinois.edu Wed Jun 17 10:19:40 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Wed, 17 Jun 2020 14:19:40 +0000 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> References: , <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> Message-ID: Hey, that's a thought. Reinvent them to match the height of the K4 and maybe include the tuner inside the KPA500 box. Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Bill Steffey NY9H Sent: Wednesday, June 17, 2020 7:54 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Future of KPA500 & KAT500 what could they do that would update them ???? make them taller like the K4 ???? On 6/17/2020 12:47 AM, Don Putnick wrote: > With the sunset of the K3S, what are the plans for the future of the KPA500 > and KAT500? Enquiring minds want to know. > 73 Don NA6Z > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ny9h at arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-hawley at illinois.edu From mbaileycrna at gmail.com Wed Jun 17 10:56:34 2020 From: mbaileycrna at gmail.com (Morgan Bailey) Date: Wed, 17 Jun 2020 09:56:34 -0500 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> Message-ID: Charles, your thinking on pairing the amp with tuner inside had great merit and housing it inside of a K4 enclosure. Heck man that is the best idea I have heard. I hope Elecraft takes the move on that especially now since they already have the format for the case made and only have to change the front and back plates and G2G. 73, Morgan Bailey NJ8M On Wed, Jun 17, 2020 at 9:21 AM hawley, charles j jr wrote: > Hey, that's a thought. Reinvent them to match the height of the K4 and > maybe include the tuner inside the KPA500 box. > > Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > > ________________________________ > From: elecraft-bounces at mailman.qth.net > on behalf of Bill Steffey NY9H > Sent: Wednesday, June 17, 2020 7:54 AM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Future of KPA500 & KAT500 > > what could they do that would update them ???? make them taller > like the K4 ???? > > On 6/17/2020 12:47 AM, Don Putnick wrote: > > With the sunset of the K3S, what are the plans for the future of the > KPA500 > > and KAT500? Enquiring minds want to know. > > 73 Don NA6Z > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to ny9h at arrl.net > > -- > This email has been checked for viruses by Avast antivirus software. > https://www.avast.com/antivirus > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mbaileycrna at gmail.com > From keith at elecraft.com Wed Jun 17 11:14:36 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Wed, 17 Jun 2020 08:14:36 -0700 Subject: [Elecraft] Spurs on 6 meters on FT8 Barney K3LA In-Reply-To: <1592321389437-0.post@n2.nabble.com> References: <1592321389437-0.post@n2.nabble.com> Message-ID: <94a9ea01-8d7e-7f1e-e340-a4409e7457bc@elecraft.com> Did you re-set the Bias after changing finals and working on the KPA3 and LPA? 1. The 8W vs 12W switch-over point on 6m is normal. 2. If the 6 pins for KPA3 DC power were darkened and you replaced with gold, you *MUST* also replace the corresponding KPAIO3 Riser-Board SOCKET!! The socket gets cooked internally. Sometimes you can see blueing and heat damage, but not always. 3. Check C28 & C52 capacitors marked "M2" near the Finals output. Some older revs KPA3 they were mounted right between the Final tabs near C50 & C51, they get cracked from thermal cycles and should be replaced and moved out away from the finals and mounted in-between the legs of C50&51. (If cracked, they usually cause spurs on 20m). Elecraft part # E530321 4. Make sure your WM HP cal number is good, typically 25-55, so the radio is not struggling to make more power than it should, then; I recommend do a manual TX gain Cal at 50W on your main operating frequency because 6m is 4megs wide; IE; "TECH MD" to "on", TUN PWR" to "nor". Then make note of the number of "TXGN HP", Then set power to 50W exactly, set to your favorite frequency, then long press XMIT to do a TUNE for several seconds. Unkey and check the TXGN HP number. It may or may not change, but should be reasonable, typical numbers are 9 thru 60. (You can do a 5.0w exactly if you like for the "LP" calibration) *** Then never, ever, set to 5 or 50w exactly as you may do an inadvertent TX Gain Cal and mess up the numbers. 5. Try the internal 2-tone generator and look at the spectrum using that, maybe you are over-driving with the FT8 audio. Keith WE6R Elecraft K3 Tech From w6png at yahoo.com Wed Jun 17 12:16:02 2020 From: w6png at yahoo.com (Paul Gacek) Date: Wed, 17 Jun 2020 09:16:02 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: Message-ID: I think it depends on the use case. I?d rather see the KPA500 v2 made lighter and a third antenna port added. The real icing on the cake would be 10w in and 500w out but I won?t touch that topic too much! This would make it a better ?portable? amp. Paul W6PNG/M0SNA www.nomadic.blog > On Jun 17, 2020, at 8:39 AM, hawley, charles j jr wrote: > > ?Seems like they are just as applicable to the K4 as well. > > Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > > ________________________________ > From: elecraft-bounces at mailman.qth.net on behalf of Don Putnick > Sent: Tuesday, June 16, 2020 11:47 PM > To: Elecraft Reflector > Subject: [Elecraft] Future of KPA500 & KAT500 > > With the sunset of the K3S, what are the plans for the future of the KPA500 > and KAT500? Enquiring minds want to know. > 73 Don NA6Z > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From ghyoungman at gmail.com Wed Jun 17 13:30:55 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Wed, 17 Jun 2020 13:30:55 -0400 Subject: [Elecraft] Elecraft KX3 Support Message-ID: <717D2469-0530-47EB-95E6-57638103EED2@gmail.com> Can anyone confirm whether or not Elecraft is currently providing support services for the KX3? As of 5/11, they weren?t issuing RSAs for the KX3, but I wonder if they are currently providing email support or support through the ?contact? web-form? Trying to determine if support is temporarily on hold, or if the support inbox is overflowing, and need to remember that patience is a virtue ? Thanks .. Grant NQ5T From KX3.2 at ColdRocksHotBrooms.com Wed Jun 17 13:35:34 2020 From: KX3.2 at ColdRocksHotBrooms.com (Lynn W. Taylor, WB6UUT) Date: Wed, 17 Jun 2020 10:35:34 -0700 Subject: [Elecraft] Elecraft KX3 Support In-Reply-To: <717D2469-0530-47EB-95E6-57638103EED2@gmail.com> References: <717D2469-0530-47EB-95E6-57638103EED2@gmail.com> Message-ID: I have received excellent KX3 support during the pandemic. It was slower than normal, but then again "normal" is much slower than normal. 73 -- Lynn On 6/17/20 10:30 AM, Grant Youngman wrote: > Can anyone confirm whether or not Elecraft is currently providing support services for the KX3? As of 5/11, they weren?t issuing RSAs for the KX3, but I wonder if they are currently providing email support or support through the ?contact? web-form? Trying to determine if support is temporarily on hold, or if the support inbox is overflowing, and need to remember that patience is a virtue ? > > Thanks .. Grant NQ5T > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kx3.2 at coldrockshotbrooms.com > From n6kr at elecraft.com Wed Jun 17 13:46:56 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Wed, 17 Jun 2020 10:46:56 -0700 Subject: [Elecraft] Elecraft KX3 Support In-Reply-To: <717D2469-0530-47EB-95E6-57638103EED2@gmail.com> References: <717D2469-0530-47EB-95E6-57638103EED2@gmail.com> Message-ID: <7B3BD5C6-8DF2-4D33-B583-124062C30825@elecraft.com> Grant, We are, but response time has ticked up a bit for obvious reasons. If you have a burning question, feel free to email me directly. 73.5, Wayne N6KR ---- elecraft.com > On Jun 17, 2020, at 10:33 AM, Grant Youngman wrote: > > ?Can anyone confirm whether or not Elecraft is currently providing support services for the KX3? As of 5/11, they weren?t issuing RSAs for the KX3, but I wonder if they are currently providing email support or support through the ?contact? web-form? Trying to determine if support is temporarily on hold, or if the support inbox is overflowing, and need to remember that patience is a virtue ? > > Thanks .. Grant NQ5T > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From w4sc at windstream.net Wed Jun 17 13:58:43 2020 From: w4sc at windstream.net (w4sc) Date: Wed, 17 Jun 2020 13:58:43 -0400 Subject: [Elecraft] TX LPGAIN issue on 6M K3 and K3S Message-ID: I have a K3 and K3S and looking at this issue for a week now. K3 FW 5.66 KPA3 KAT3 K3S FW 5.67 KPA3A KAT3A ATN6 set Latest K3/K3S utility installed Test equipment includes HP 736 Wattmeter, Bird wattmeter, and a load with > 25db return loss. After running automated TX GAIN on either unit. K3 TX-LPGAIN is in range 12 ? 16 K3S TX-LPGAIN is in range of 60-65 Exit TECH MD. SET ATU to AUTO Initiating a ?ATU TUNE? on 52.000 MHZ the ATU finds a 1.2 match or better without issue. Setting the power control to 90W, the power out shown on the external wattmeter is 80 to 85W, with Tuner in AUTO or BYPASSED. Initiating a ?ATU TUNE? lower in 6M band at 51.125 the ATU has trouble finding a match on both K3 and K3S. The K3 has more problems, and takes a lot longer. The resolved match on the K3 will be anywhere from 1.2 to 1.6, and setting power control to 90W, only 55 to 60 W is realized with Tuner in AUTO or BYPASSED. Running MANUAL TX LPGAIN only on 6M at 50.125 results in the following: K3 TX-LP GAIN is in the range of 62 to 70. K3S TX LPGAIN in in the range of 90 to 105. This appears to resolve the ATU matching issue (SWR < 1.2) and the lower power out (80 to 85W) at 50.125 MHZ Higher in the band at 52.000MHz operation appears to be the same. Ben W4SC Sent from Mail for Windows 10 From donnieput at gmail.com Wed Jun 17 14:10:02 2020 From: donnieput at gmail.com (Don Putnick) Date: Wed, 17 Jun 2020 11:10:02 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: Message-ID: I guess I should have been more specific. Will they keep them or will they discontinue them? They started as part of the K3 line. Didn't intend to mean upgrade. 73 Don NA6Z On Tue, Jun 16, 2020 at 9:47 PM Don Putnick wrote: > With the sunset of the K3S, what are the plans for the future of the > KPA500 and KAT500? Enquiring minds want to know. > 73 Don NA6Z > From ghyoungman at gmail.com Wed Jun 17 14:40:23 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Wed, 17 Jun 2020 14:40:23 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: Message-ID: <40142D50-8939-4ECA-8B81-BEEF8997474D@gmail.com> I think a 500W-class amp is a good thing to keep in the product line, whether it?s the current KPA500 or KPA500A, or whatever. Not everyone necessarily wants or needs a KPA1500. The 500 watt amp is right in line with vintage gear like the 30L-1/SB200 ? both VERY popular in their day (and still widely used) for good reason. I could care less about either the size of the cabinet or less than an S-unit. Grant NQ5T > On Jun 17, 2020, at 2:10 PM, Don Putnick wrote: > > I guess I should have been more specific. Will they keep them or will they > discontinue them? They started as part of the K3 line. Didn't intend to > mean upgrade. 73 Don NA6Z > > On Tue, Jun 16, 2020 at 9:47 PM Don Putnick wrote: > >> With the sunset of the K3S, what are the plans for the future of the >> KPA500 and KAT500? Enquiring minds want to know. >> 73 Don NA6Z >> From n6kr at elecraft.com Wed Jun 17 14:45:36 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Wed, 17 Jun 2020 11:45:36 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <40142D50-8939-4ECA-8B81-BEEF8997474D@gmail.com> References: <40142D50-8939-4ECA-8B81-BEEF8997474D@gmail.com> Message-ID: <69883734-12A0-472D-AFFA-D04E76907F88@elecraft.com> The KPA500 and KAT500 are proven QRO products that we'll be shipping for many years to come. 73, Wayne N6KR > On Jun 17, 2020, at 11:40 AM, Grant Youngman wrote: > > I think a 500W-class amp is a good thing to keep in the product line, whether it?s the current KPA500 or KPA500A, or whatever. Not everyone necessarily wants or needs a KPA1500. The 500 watt amp is right in line with vintage gear like the 30L-1/SB200 ? both VERY popular in their day (and still widely used) for good reason. I could care less about either the size of the cabinet or less than an S-unit. > > Grant NQ5T > >> On Jun 17, 2020, at 2:10 PM, Don Putnick wrote: >> >> I guess I should have been more specific. Will they keep them or will they >> discontinue them? They started as part of the K3 line. Didn't intend to >> mean upgrade. 73 Don NA6Z >> >> On Tue, Jun 16, 2020 at 9:47 PM Don Putnick wrote: >> >>> With the sunset of the K3S, what are the plans for the future of the >>> KPA500 and KAT500? Enquiring minds want to know. >>> 73 Don NA6Z >>> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From g4bvh at cathyandpeter.com Wed Jun 17 15:05:25 2020 From: g4bvh at cathyandpeter.com (G4BVH) Date: Wed, 17 Jun 2020 20:05:25 +0100 Subject: [Elecraft] K3 - No RF output - Fault resolved In-Reply-To: References: <001c01d642eb$94f28d80$bed7a880$@com> Message-ID: <002301d644da$4216ad30$c6440790$@com> Very many thanks to everyone who responded to my request for help. Happily the fault turned out to be something very simple. Rob at Elecraft suggested the LPA FETs may have failed as the current measurements I had taken indicated the FETs were not drawing the bias current they should be. I checked the voltage on the FETs on the LPA module and found it to be 6.5V. Looking at the circuit diagram this should have been 12V as the supply to them comes directly from the 12V supply. I noticed the 12 pin edge connector on the module did not seem to be fully seated. I eased it into place, the FET voltage returned to a solid 12V and the rig is now functioning normally. Again thanks to everyone who replied. 73, Peter, G4BVH On 6/15/2020 4:04 AM, G4BVH wrote: > Hi, > > > > I have had a fault develop on my K3 whereby there is no RF being produced. I > have emailed the details to Elecraft support and am hoping to receive a > reply with suggestions. However, I thought I would also send the details > here in case anyone can suggest something to try or investigate further. > > > > I have a K3, serial number 6482 which I built from a kit. It has worked > flawlessly since I built it. I have the 400Hz and 2.7kHz (2.8kHz?) filters > fitted and the 100W module but no other additions. > > > > A few days ago, it was running 20W of FT8 and I suddenly discovered that it > hadn't been transmitting. Everything appeared that it should be > transmitting: the red TX LED was lit, it was not in TEST mode (TX not > flashing) but there was no RF output displayed on the bar graph and > definitely nothing coming out on any mode. There is no RF if I wind down the > power below the 10W level, there is the usual relay click going through 12W > - 13W and still no RF above this level, ie on towards 100W. > > > > The K3 metering shows 13.5V and 0.84 on receive, 0.97A on the lower power > level setting and 1.18A on the higher power setting on transmit. The RF > output bar graph always displays 1 bar on transmit no matter what the power > level is set but there is no RF coming out. > > > > I tried the TX calibration but it fails saying the power level didn't reach > that required. > > > > The receiver works fine and I can hear the CW side tone and SSB, AM and FM > audio monitoring as normal. > > > > I have removed and reseated the front panel and also the 3 coax patch leads > behind the front panel but this made no difference. There is a yellow LED, > D33, on the main board which is lit on receive and goes out on transmit. > > > > The latest firmware is installed - I updated this a month or so ago. > > > > TX inhibit is OFF and the 20A breaker has not tripped. > > > > Any thoughts or suggestions gratefully received. > > > > Very many thanks and 73, > > > > Peter, G4BVH > > > > > > > -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to g4bvh at cathyandpeter.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to g4bvh at cathyandpeter.com From scholl at scholl.org Wed Jun 17 15:07:48 2020 From: scholl at scholl.org (Chester B Scholl Jr) Date: Wed, 17 Jun 2020 15:07:48 -0400 Subject: [Elecraft] Spurs on 6 meters on FT8 Barney K3LA In-Reply-To: <94a9ea01-8d7e-7f1e-e340-a4409e7457bc@elecraft.com> References: <1592321389437-0.post@n2.nabble.com> <94a9ea01-8d7e-7f1e-e340-a4409e7457bc@elecraft.com> Message-ID: <01fd01d644da$97e9a780$c7bcf680$@scholl.org> After further thought at lunch I realize that I did replace both sockets. I still remember getting them unsoldered. My other unrelated comment is that I hope the lessons learned from the K3 will make it into the K4 and that the K4 whenever it appears. Barney K3LA -----Original Message----- From: Keith Trinity WE6R [mailto:keith at elecraft.com] Sent: Wednesday, June 17, 2020 11:15 AM To: elecraft at mailman.qth.net; scholl at scholl.org Subject: Re: [Elecraft] Spurs on 6 meters on FT8 Barney K3LA Did you re-set the Bias after changing finals and working on the KPA3 and LPA? 1. The 8W vs 12W switch-over point on 6m is normal. 2. If the 6 pins for KPA3 DC power were darkened and you replaced with gold, you *MUST* also replace the corresponding KPAIO3 Riser-Board SOCKET!! The socket gets cooked internally. Sometimes you can see blueing and heat damage, but not always. 3. Check C28 & C52 capacitors marked "M2" near the Finals output. Some older revs KPA3 they were mounted right between the Final tabs near C50 & C51, they get cracked from thermal cycles and should be replaced and moved out away from the finals and mounted in-between the legs of C50&51. (If cracked, they usually cause spurs on 20m). Elecraft part # E530321 4. Make sure your WM HP cal number is good, typically 25-55, so the radio is not struggling to make more power than it should, then; I recommend do a manual TX gain Cal at 50W on your main operating frequency because 6m is 4megs wide; IE; "TECH MD" to "on", TUN PWR" to "nor". Then make note of the number of "TXGN HP", Then set power to 50W exactly, set to your favorite frequency, then long press XMIT to do a TUNE for several seconds. Unkey and check the TXGN HP number. It may or may not change, but should be reasonable, typical numbers are 9 thru 60. (You can do a 5.0w exactly if you like for the "LP" calibration) *** Then never, ever, set to 5 or 50w exactly as you may do an inadvertent TX Gain Cal and mess up the numbers. 5. Try the internal 2-tone generator and look at the spectrum using that, maybe you are over-driving with the FT8 audio. Keith WE6R Elecraft K3 Tech From nr4c at widomaker.com Wed Jun 17 15:13:36 2020 From: nr4c at widomaker.com (Nr4c) Date: Wed, 17 Jun 2020 15:13:36 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: Message-ID: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> The KAT500 has three antenna out ports. It only needs one In so the KPA500 needs only one out port. As for the 10 W in and 500 out idea. That is prohibited by law. They?re only allowed to sell an amp with max gain of 13dB. Sent from my iPhone ...nr4c. bill > On Jun 17, 2020, at 12:18 PM, Paul Gacek via Elecraft wrote: > > ?I think it depends on the use case. I?d rather see the KPA500 v2 made lighter and a third antenna port added. > > The real icing on the cake would be 10w in and 500w out but I won?t touch that topic too much! > > This would make it a better ?portable? amp. > > Paul > W6PNG/M0SNA > www.nomadic.blog > > >> On Jun 17, 2020, at 8:39 AM, hawley, charles j jr wrote: >> >> ?Seems like they are just as applicable to the K4 as well. >> >> Chuck Hawley >> c-hawley at illinois.edu >> >> Amateur Radio, KE9UW >> aka Jack, BMW Motorcycles >> >> ________________________________ >> From: elecraft-bounces at mailman.qth.net on behalf of Don Putnick >> Sent: Tuesday, June 16, 2020 11:47 PM >> To: Elecraft Reflector >> Subject: [Elecraft] Future of KPA500 & KAT500 >> >> With the sunset of the K3S, what are the plans for the future of the KPA500 >> and KAT500? Enquiring minds want to know. >> 73 Don NA6Z >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to c-hawley at illinois.edu >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w6png at yahoo.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From ve3nr at bell.net Wed Jun 17 15:27:40 2020 From: ve3nr at bell.net (Bert) Date: Wed, 17 Jun 2020 15:27:40 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> Message-ID: <55c6b221-952a-ca53-fc98-62c41308b36f@bell.net> Maybe it's time to change the law! The rest of the world is suffering because of an outdated law in the US! Bert VE3NR On 2020-06-17 15:13, Nr4c wrote: > The KAT500 has three antenna out ports. It only needs one In so the KPA500 needs only one out port. > > As for the 10 W in and 500 out idea. That is prohibited by law. They?re only allowed to sell an amp with max gain of 13dB. > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 17, 2020, at 12:18 PM, Paul Gacek via Elecraft wrote: >> >> ?I think it depends on the use case. I?d rather see the KPA500 v2 made lighter and a third antenna port added. >> >> The real icing on the cake would be 10w in and 500w out but I won?t touch that topic too much! >> >> This would make it a better ?portable? amp. >> >> Paul >> W6PNG/M0SNA >> www.nomadic.blog >> >> >>> On Jun 17, 2020, at 8:39 AM, hawley, charles j jr wrote: >>> >>> ?Seems like they are just as applicable to the K4 as well. >>> >>> Chuck Hawley >>> c-hawley at illinois.edu >>> >>> Amateur Radio, KE9UW >>> aka Jack, BMW Motorcycles >>> >>> ________________________________ >>> From: elecraft-bounces at mailman.qth.net on behalf of Don Putnick >>> Sent: Tuesday, June 16, 2020 11:47 PM >>> To: Elecraft Reflector >>> Subject: [Elecraft] Future of KPA500 & KAT500 >>> >>> With the sunset of the K3S, what are the plans for the future of the KPA500 >>> and KAT500? Enquiring minds want to know. >>> 73 Don NA6Z >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to c-hawley at illinois.edu >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to w6png at yahoo.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ve3nr at bell.net From rick.nk7i at gmail.com Wed Jun 17 15:37:26 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Wed, 17 Jun 2020 12:37:26 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> Message-ID: <49d08590-ecec-0d52-2d51-7a99694b3f7d@gmail.com> Having both plus the KPA1500 (same height as the K4), that would be a challenge without a major rework.? Not just in squeezing it in, but still allow for adequate cooling. If they choose to go down that path, I'd hope they keep the third antenna port (only two on the KPA1500). As for their long term plans; we know they listen but are sly in responding until it's time to announce. 73, Rick NK7I On 6/17/2020 7:19 AM, hawley, charles j jr wrote: > Hey, that's a thought. Reinvent them to match the height of the K4 and maybe include the tuner inside the KPA500 box. > > Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles From wunder at wunderwood.org Wed Jun 17 15:55:38 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Wed, 17 Jun 2020 12:55:38 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <55c6b221-952a-ca53-fc98-62c41308b36f@bell.net> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <55c6b221-952a-ca53-fc98-62c41308b36f@bell.net> Message-ID: <6519DA3C-F74E-4D5E-97B4-EFBD72907B35@wunderwood.org> On Jun 17, 2020, at 12:27 PM, Bert wrote: > > Maybe it's time to change the law! > > The rest of the world is suffering because of an outdated law in the US! > > Bert VE3NR Elecraft is free to sell export versions of their amps without that limit, so the rest of the world is just fine. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) From josh at voodoolab.com Wed Jun 17 15:56:21 2020 From: josh at voodoolab.com (Josh Fiden) Date: Wed, 17 Jun 2020 12:56:21 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <20200617085734.Horde.snpn-bQCm3rWLPJEiGUr1ji@www11.qth.com> References: <20200617085734.Horde.snpn-bQCm3rWLPJEiGUr1ji@www11.qth.com> Message-ID: <682E3B5D-B670-49F3-A948-8972FD414892@voodoolab.com> I like combining them. And update to a lightweight switching power supply. Should be less expensive to produce and eliminates dealing with 120 vs 230, transformer taps, voltage sag under load. I have them already and this adds no additional functionality, except easier when I shuffle things around in the shack. Work perfectly as they are so no new purchase for me. 73 Josh W6XU Sent from my mobile device > On Jun 17, 2020, at 6:58 AM, john at kk9a.com wrote: > > ?How about combining them into a single enclosure? > > John KK9A > > > Bill Steffey NY9H wrote: > > what could they do that would update them ???? make them taller > like the K4 ???? > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to josh at voodoolab.com From starman10 at hotmail.com Wed Jun 17 15:57:09 2020 From: starman10 at hotmail.com (Lou W0FK) Date: Wed, 17 Jun 2020 12:57:09 -0700 (MST) Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <49d08590-ecec-0d52-2d51-7a99694b3f7d@gmail.com> References: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> <49d08590-ecec-0d52-2d51-7a99694b3f7d@gmail.com> Message-ID: <1592423829164-0.post@n2.nabble.com> I doubt Elecraft wold spend money to re-engineer the KPA500/KAT500, invest in new boards, cabinetry, manuals, production/assembly changes, etc. The pair works well as is, and costs zero R&D or production dollars to continue them as they are. Besides, they'll fit the new K5 profile when it comes out. ;-) 73, Lou W0FK -- Sent from: http://elecraft.365791.n2.nabble.com/ From wes_n7ws at triconet.org Wed Jun 17 16:25:11 2020 From: wes_n7ws at triconet.org (Wes) Date: Wed, 17 Jun 2020 13:25:11 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> Message-ID: <10c89669-a251-20b1-8008-873d45ccce8c@triconet.org> 15 dB Wes? N7WS On 6/17/2020 12:13 PM, Nr4c wrote: > The KAT500 has three antenna out ports. It only needs one In so the KPA500 needs only one out port. > > As for the 10 W in and 500 out idea. That is prohibited by law. They?re only allowed to sell an amp with max gain of 13dB. > > Sent from my iPhone > ...nr4c. bill From sm.shearer.01 at gmail.com Wed Jun 17 16:33:28 2020 From: sm.shearer.01 at gmail.com (stephen shearer) Date: Wed, 17 Jun 2020 16:33:28 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <1592423829164-0.post@n2.nabble.com> References: <830f7f48-0a8c-53bc-b009-abb323114ff2@arrl.net> <49d08590-ecec-0d52-2d51-7a99694b3f7d@gmail.com> <1592423829164-0.post@n2.nabble.com> Message-ID: There has been discussion... on Elecraft K4 group. 73, steve On 5/8/20 11:40 AM, N6KR wrote:> Hi Stephen, > > This would be cool, but it's a substantial amount of design work. We've talked about it, but that's about as far as we've gotten. It might depend on demand. > > 73, > Wayne > N6KR > > >> On May 8, 2020, at 8:38 AM, stephen shearer wrote: >> >> Wayne, >> >> Speaking of the KAT500, KPA500, and the K4... >> >> Are there plans to combine the KAT500 and KPA500 into one box matching the K4 ?? >> It would be nice for portable and those that don't want 1500W'sThere has been discussion >> >> 73, steve WB3LGC >> >> On 5/8/20 10:40 AM, N6KR wrote: >>> Hi Brian, >>> This is certainly possible, and a very good idea. We'll add it to the list of potential features. >>> Please describe what you'd like to see on such an information display. >>> 73, >>> Wayne >>> N6KR >>>> On May 7, 2020, at 6:34 PM, Brian wrote: >>>> >>>> Will the K4 be able to display the operation of KAT500 and KPA 500 when they are remote to the K4, i.e. if they are fairly close but not visible to the operator. >>>> >> >> >> > > > -=-=-=-=-=-=-=-=-=-=-=- > Groups.io Links: You receive all messages sent to this group. > > View/Reply Online (#414): https://groups.io/g/Elecraft-K4/message/414 > Mute This Topic: https://groups.io/mt/74064546/244692 > Group Owner: Elecraft-K4+owner at groups.io > Unsubscribe: https://groups.io/g/Elecraft-K4/leave/6751492/1821447238/xyzzy [sm.shearer.01 at gmail.com] > -=-=-=-=-=-=-=-=-=-=-=- > On 6/17/20 3:57 PM, Lou W0FK wrote: > I doubt Elecraft wold spend money to re-engineer the KPA500/KAT500, invest in > new boards, cabinetry, manuals, production/assembly changes, etc. The pair > works well as is, and costs zero R&D or production dollars to continue them > as they are. > > Besides, they'll fit the new K5 profile when it comes out. ;-) > > 73, Lou W0FK > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to sm.shearer.01 at gmail.com > From josh at voodoolab.com Wed Jun 17 16:44:04 2020 From: josh at voodoolab.com (Josh Fiden) Date: Wed, 17 Jun 2020 13:44:04 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <69883734-12A0-472D-AFFA-D04E76907F88@elecraft.com> References: <69883734-12A0-472D-AFFA-D04E76907F88@elecraft.com> Message-ID: <598B5CD3-7C98-49C8-9D61-9C208497F065@voodoolab.com> Also nice to have an amp you can run from 120v if needed. 73 Josh W6XU Sent from my mobile device > On Jun 17, 2020, at 11:47 AM, Wayne Burdick wrote: > > ?The KPA500 and KAT500 are proven QRO products that we'll be shipping for many years to come. > > 73, > Wayne > N6KR > > >> On Jun 17, 2020, at 11:40 AM, Grant Youngman wrote: >> >> I think a 500W-class amp is a good thing to keep in the product line, whether it?s the current KPA500 or KPA500A, or whatever. Not everyone necessarily wants or needs a KPA1500. The 500 watt amp is right in line with vintage gear like the 30L-1/SB200 ? both VERY popular in their day (and still widely used) for good reason. I could care less about either the size of the cabinet or less than an S-unit. >> >> Grant NQ5T >> >>>> On Jun 17, 2020, at 2:10 PM, Don Putnick wrote: >>> >>> I guess I should have been more specific. Will they keep them or will they >>> discontinue them? They started as part of the K3 line. Didn't intend to >>> mean upgrade. 73 Don NA6Z >>> >>>> On Tue, Jun 16, 2020 at 9:47 PM Don Putnick wrote: >>> >>>> With the sunset of the K3S, what are the plans for the future of the >>>> KPA500 and KAT500? Enquiring minds want to know. >>>> 73 Don NA6Z >>>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6kr at elecraft.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to josh at voodoolab.com From jim at audiosystemsgroup.com Wed Jun 17 16:58:15 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 17 Jun 2020 13:58:15 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <598B5CD3-7C98-49C8-9D61-9C208497F065@voodoolab.com> References: <69883734-12A0-472D-AFFA-D04E76907F88@elecraft.com> <598B5CD3-7C98-49C8-9D61-9C208497F065@voodoolab.com> Message-ID: On 6/17/2020 1:44 PM, Josh Fiden wrote: > Also nice to have an amp you can run from 120v if needed. Yes. The KPA500 and KAT500 see a lot of use for 7QP and CQP expeditions, and for 6M grid expeditions. 73, Jim K9YC From kt5te at watershipfarm.com Wed Jun 17 17:16:34 2020 From: kt5te at watershipfarm.com (Kt5te) Date: Wed, 17 Jun 2020 16:16:34 -0500 Subject: [Elecraft] Elecraft KX3 Support In-Reply-To: <7B3BD5C6-8DF2-4D33-B583-124062C30825@elecraft.com> References: <717D2469-0530-47EB-95E6-57638103EED2@gmail.com> <7B3BD5C6-8DF2-4D33-B583-124062C30825@elecraft.com> Message-ID: <1976006.9WoXJKdLpp@linux-veff> OK, Wayne, I'll bite... 73.5? -- 73, William KT5TE On Wednesday, June 17, 2020 12:46:56 PM CDT Wayne Burdick wrote: > Grant, > > We are, but response time has ticked up a bit for obvious reasons. > > If you have a burning question, feel free to email me directly. > > 73.5, > Wayne > N6KR > > > ---- > elecraft.com > > > On Jun 17, 2020, at 10:33 AM, Grant Youngman wrote: > > > > ?Can anyone confirm whether or not Elecraft is currently providing support > > services for the KX3? As of 5/11, they weren?t issuing RSAs for the KX3, > > but I wonder if they are currently providing email support or support > > through the ?contact? web-form? Trying to determine if support is > > temporarily on hold, or if the support inbox is overflowing, and need to > > remember that patience is a virtue ? > > > > Thanks .. Grant NQ5T > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to n6kr at elecraft.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kt5te at watershipfarm.com From n6kr at elecraft.com Wed Jun 17 18:39:13 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Wed, 17 Jun 2020 15:39:13 -0700 Subject: [Elecraft] Elecraft KX3 Support In-Reply-To: <1976006.9WoXJKdLpp@linux-veff> References: <717D2469-0530-47EB-95E6-57638103EED2@gmail.com> <7B3BD5C6-8DF2-4D33-B583-124062C30825@elecraft.com> <1976006.9WoXJKdLpp@linux-veff> Message-ID: <8811B6D5-DB04-4E8F-A858-F380E36F5BB3@elecraft.com> Service with a smile. Wayne N6KR > On Jun 17, 2020, at 2:16 PM, Kt5te wrote: > > OK, Wayne, I'll bite... 73.5? > > -- > 73, William KT5TE > > On Wednesday, June 17, 2020 12:46:56 PM CDT Wayne Burdick wrote: >> Grant, >> >> We are, but response time has ticked up a bit for obvious reasons. >> >> If you have a burning question, feel free to email me directly. >> >> 73.5, >> Wayne >> N6KR >> From wes_n7ws at triconet.org Wed Jun 17 18:48:49 2020 From: wes_n7ws at triconet.org (Wes) Date: Wed, 17 Jun 2020 15:48:49 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: <69883734-12A0-472D-AFFA-D04E76907F88@elecraft.com> <598B5CD3-7C98-49C8-9D61-9C208497F065@voodoolab.com> Message-ID: <36500cf5-30dd-9431-6d34-178c33604127@triconet.org> My whole home station runs on one 120VAC 20A circuit. https://www.qrz.com/db/N7WS? for stats. Wes? N7WS On 6/17/2020 1:58 PM, Jim Brown wrote: > On 6/17/2020 1:44 PM, Josh Fiden wrote: >> Also nice to have an amp you can run from 120v if needed. > > Yes. The KPA500 and KAT500 see a lot of use for 7QP and CQP expeditions, and > for 6M grid expeditions. > > 73, Jim K9YC From eric at elecraft.com Wed Jun 17 22:08:29 2020 From: eric at elecraft.com (Eric Swartz) Date: Wed, 17 Jun 2020 19:08:29 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: Message-ID: <1F175DB2-587F-4BC7-AA55-F7F5C944A57C@elecraft.com> Hi Don, We plan to keep selling and supporting both the KPA500 and KAT500 - Sales remain strong for both. They are also compatible with the K4 and most other HF radios. :-) 73, Eric elecraft.com _..._ > On Jun 16, 2020, at 9:50 PM, Don Putnick wrote: > > ?With the sunset of the K3S, what are the plans for the future of the KPA500 > and KAT500? Enquiring minds want to know. > 73 Don NA6Z > ______________________________________________________________ > From frantz at pwpconsult.com Wed Jun 17 22:50:36 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Wed, 17 Jun 2020 22:50:36 -0400 Subject: [Elecraft] Elecraft KX3 Support In-Reply-To: <717D2469-0530-47EB-95E6-57638103EED2@gmail.com> Message-ID: I got good support when I had problems with my KX3. It was slower than BC, but just as good. BTW, my problems turned out to be: (1) Bad BNC connector on antenna lead. (2) Messed up firmware. The KX3 utility couldn't identify the firmware version. Reload fixed it. 73 Bill AE6JV On 6/17/20 at 1:30 PM, ghyoungman at gmail.com (Grant Youngman) wrote: >Can anyone confirm whether or not Elecraft is currently >providing support services for the KX3? As of 5/11, they >weren?t issuing RSAs for the KX3, but I wonder if they are >currently providing email support or support through the >?contact? web-form? Trying to determine if support is >temporarily on hold, or if the support inbox is overflowing, >and need to remember that patience is a virtue ? ---------------------------------------------------- Bill Frantz | Art is how we decorate space, 408-348-7900 | music is how we decorate time. www.pwpconsult.com | -Jean-Michel Basquiat From OH2CG at kolumbus.fi Thu Jun 18 09:16:16 2020 From: OH2CG at kolumbus.fi (Pentti A J Pajunen) Date: Thu, 18 Jun 2020 16:16:16 +0300 Subject: [Elecraft] KX3 S/N 6624 Inopretive "Frequency/Tech-mode" -button Message-ID: <7575801d-09c0-9f9e-cebd-a6e0c65cdcc1@kolumbus.fi> Yaw! Dont recall when this malfunction started. I once asked for possible causes and got a couple of good suggestions. The flat cable btwn Proc and RF board should be checked. Ohm meter checked and found this cable being intact. Gave slight spray to the base connectors, that also seem OK as checked with magnifying googles. No bent pins, no obvious oxidation. Bad button? Which point to check? -- 73 & CU Penna, OH2G, OH2CG From pincon at erols.com Thu Jun 18 09:06:53 2020 From: pincon at erols.com (Charlie T) Date: Thu, 18 Jun 2020 09:06:53 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> Message-ID: <002e01d64571$5b132290$113967b0$@erols.com> Isn't there some sort of "jumper" or ???, that will increase the gain to something other than the ridiculous and prohibitive +13 dB figure, for "international" (wink-wink) sales, sorta like the "MARS" mod in almost all radios these days? 99.9% of the chicken band users today are happy with their 5 watt radios. However, that restrictive and useless +13 gain law does NOTHING to stop the REALLY big guns on 27.025 who typically run amps using tubes that have HANDLES on them! (I've personally seen channel 6 mobile set-ups running power in excess of 25 kilowatts.) 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c Sent: Wednesday, June 17, 2020 3:14 PM To: Paul Gacek Cc: Don Putnick ; Elecraft Reflector Subject: Re: [Elecraft] Future of KPA500 & KAT500 The KAT500 has three antenna out ports. It only needs one In so the KPA500 needs only one out port. As for the 10 W in and 500 out idea. That is prohibited by law. They?re only allowed to sell an amp with max gain of 13dB. Sent from my iPhone ...nr4c. bill From KI4LYS at msn.com Thu Jun 18 11:35:43 2020 From: KI4LYS at msn.com (Joseph McIntire) Date: Thu, 18 Jun 2020 15:35:43 +0000 Subject: [Elecraft] xv tansverters Message-ID: Hello all, I have two Elecraft transverters One I put together in about 2009 it is a 144Mhz. after building and going through the alignment procedures I could not get it to work properly. I got side tracked and set it aside and have not messed with it since. A month or so ago I pulled out the other one which is a 50Mhz transverter. Both of these were purchased by my father in law. He started the build on the 50 Mhz unit then at some point his key fell silent. So when we clean out the house I packed all we could find of it in a box. And a month or so ago I went to finish it. And was surprised to find I was only short by one resistor. But in trying to get all my Elecraft manuals in one place I found an Errata for Xv transverters dated may, 11 2011 Rev. D-3. The main change there is L19 The older Errata states to delete the step to remove the tuning slug in L19. And the later one Rev. D-3 states page 17, Parts Inventory, XV144: Add the following new part at the bottom of the page. L19 1 each 198 nH, 7MM, RF Inductor, Violet E690226. My question is this for both 144 and 50 Mhz transverters or just the 144 Mhz units. The reason I ask is neither one has the tuning slug in that location nor does it appear there ever was one. And the manuals are for the 50, 144, and the 222 Mhz units with just a few differences. At the end there is a small section that has you in stall the proper parts for the specific unit you are assembling. Joe AB3JN Sent from Mail for Windows 1 From marklgoldberg at gmail.com Thu Jun 18 12:11:29 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Thu, 18 Jun 2020 09:11:29 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <002e01d64571$5b132290$113967b0$@erols.com> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <002e01d64571$5b132290$113967b0$@erols.com> Message-ID: NX1P created a modification that is legal for an individual Ham to do at your own risk. It is more complicated than just a jumper. This is the only site I could find it at: https://docplayer.net/22608412-Kpa-500-modifications.html 73, Mark W7MLG On Thu, Jun 18, 2020 at 8:34 AM Charlie T wrote: > > Isn't there some sort of "jumper" or ???, that will increase the gain to something other than the ridiculous and prohibitive +13 dB figure, for "international" (wink-wink) sales, sorta like the "MARS" mod in almost all radios these days? > > 99.9% of the chicken band users today are happy with their 5 watt radios. > However, that restrictive and useless +13 gain law does NOTHING to stop the REALLY big guns on 27.025 who typically run amps using tubes that have HANDLES on them! > (I've personally seen channel 6 mobile set-ups running power in excess of 25 kilowatts.) > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c > Sent: Wednesday, June 17, 2020 3:14 PM > To: Paul Gacek > Cc: Don Putnick ; Elecraft Reflector > Subject: Re: [Elecraft] Future of KPA500 & KAT500 > > The KAT500 has three antenna out ports. It only needs one In so the KPA500 needs only one out port. > > As for the 10 W in and 500 out idea. That is prohibited by law. They?re only allowed to sell an amp with max gain of 13dB. > > Sent from my iPhone > ...nr4c. bill > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to marklgoldberg at gmail.com From gdanner12 at gmail.com Thu Jun 18 12:27:22 2020 From: gdanner12 at gmail.com (Gmail - George) Date: Thu, 18 Jun 2020 12:27:22 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <002e01d64571$5b132290$113967b0$@erols.com> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <002e01d64571$5b132290$113967b0$@erols.com> Message-ID: <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop> Paula Keezer NX1P modified a KPA500 to allow it to be driven to about 500 watts by a KX3. She published it - but I can not find it on the web. The mod increased the gain by less than 3 db (seems I recall 2.something). You would need the 12 to 15 watts to drive it to about 500 watts. The modification involved removing the input pad and modifying the feed back loop to the microprocessor. I thought about doing the mod to be able to run a net with my KX3 if my K3 quit. I have a KXPA and decided not to do the modification. I can just remove my KX3 & KXPA from my truck if I ever need a backup to drive the KPA500. Probably 10 minutes work and find the bag of portable cables. BTW - Ms. Keezer's modification was very detailed and she had many cautions regarding doing the modification. It defiantly was not a matter of "cutting a jumper" to remove the input pad. You need remove the pad parts and change the number of turns in a transformer. Defiantly would void the warranty and make factory repairs iffy depending on Elecraft's policies. Other manufacturers I have worked with would restore the amp to factory while repairing it. As a ham you are not limited to the 15 db gain restriction - the manufacturer is but not you. 73 George AI4VZ -----Original Message----- From: Charlie T Sent: Thursday, June 18, 2020 9:06 AM To: 'Nr4c' Cc: Elecraft at mailman.qth.net Subject: Re: [Elecraft] Future of KPA500 & KAT500 Isn't there some sort of "jumper" or ???, that will increase the gain to something other than the ridiculous and prohibitive +13 dB figure, for "international" (wink-wink) sales, sorta like the "MARS" mod in almost all radios these days? 99.9% of the chicken band users today are happy with their 5 watt radios. However, that restrictive and useless +13 gain law does NOTHING to stop the REALLY big guns on 27.025 who typically run amps using tubes that have HANDLES on them! (I've personally seen channel 6 mobile set-ups running power in excess of 25 kilowatts.) 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c Sent: Wednesday, June 17, 2020 3:14 PM To: Paul Gacek Cc: Don Putnick ; Elecraft Reflector Subject: Re: [Elecraft] Future of KPA500 & KAT500 The KAT500 has three antenna out ports. It only needs one In so the KPA500 needs only one out port. As for the 10 W in and 500 out idea. That is prohibited by law. They?re only allowed to sell an amp with max gain of 13dB. Sent from my iPhone ...nr4c. bill ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to gdanner12 at gmail.com From donwilh at embarqmail.com Thu Jun 18 12:32:20 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 18 Jun 2020 12:32:20 -0400 Subject: [Elecraft] xv tansverters In-Reply-To: References: Message-ID: <672ba67c-b8da-4575-ecb3-c3f0c320d187@embarqmail.com> Joe, Errata that was issued after the ship date of your units is not applicable to your unit. This particular errata applies only to the XV144 and it was necessary because the crystal manufacturer supplied a crystal that was slightly off frequency from the prior one. L19 compensated for that difference. So if your XV144 is on frequency, do not change it. OTOH, if that errata was shipped with your XV144, then it is applicable. I once knew the markings on the old and new crystals, but have forgotten. You might want to search far back in the archives for relevant information from Gary Surrency. 73, Don W3FPR On 6/18/2020 11:35 AM, Joseph McIntire wrote: > Hello all, > I have two Elecraft transverters One I put together in about 2009 it is a 144Mhz. after building and going through the alignment procedures I could not get it to work properly. I got side tracked and set it aside and have not messed with it since. A month or so ago I pulled out the other one which is a 50Mhz transverter. Both of these were purchased by my father in law. He started the build on the 50 Mhz unit then at some point his key fell silent. So when we clean out the house I packed all we could find of it in a box. And a month or so ago I went to finish it. And was surprised to find I was only short by one resistor. But in trying to get all my Elecraft manuals in one place I found an Errata for Xv transverters dated may, 11 2011 Rev. D-3. The main change there is L19 The older Errata states to delete the step to remove the tuning slug in L19. And the later one Rev. D-3 states page 17, Parts Inventory, XV144: Add the following new part at the bottom of the page. L19 > 1 each 198 nH, 7MM, RF Inductor, Violet E690226. My question is this for both 144 and 50 Mhz transverters or just the 144 Mhz units. The reason I ask is neither one has the tuning slug in that location nor does it appear there ever was one. And the manuals are for the 50, 144, and the 222 Mhz units with just a few differences. At the end there is a small section that has you in stall the proper parts for the specific unit you are assembling. From wa2lbi at gmail.com Thu Jun 18 13:23:59 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Thu, 18 Jun 2020 13:23:59 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <002e01d64571$5b132290$113967b0$@erols.com> <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop> Message-ID: I own a KPA500 and KAT500. Both work very well with my Icom IC-7610 but operation could be improved if they could communicate with the Icom CI-V bus. I do not own a KPA1500 but from my research I see it can communicate directly with the Icom CI-V bus to switch the amp AND the internal tuner/antenna selector when connected to an Icom rig without any RF being transmitted. The KPA500 and KAT500 have no such CI-V capability. The Icom band data connection on the amp works but does not address the WARC bands. There is no provision at all to communicate with the KAT500 so it must RF sense to switch bands and select the correct antenna. While this works well when transmitting it is of no value when you are just listening or scanning. The KAT500 will remain on the last band and antenna where RF was present. For example, my KAT500 has a 75M dipole on ANT 1 and a 40M-10M fan dipole on ANT 2. If I am listening on 75M and then switch bands to 20M the KPA500 will switch bands using the band data cable I built (but not on the WARC bands...) but the KAT500 remains on ANT 1 and tuned for the 75M frequency. Of course, this seriously attenuates the 20M signals. I would like to see a plug-in product that connects to the IC-7610 (or other Icom), the KPA500, and the KAT500 that reads the Icom CI-V bus commands and sets BOTH the KPA500 and KAT500 to the correct band without transmitting, and in the case of the KAT500, also selects the proper antenna for the frequency. Since the KAT500 antenna is assigned per band in the KAT500 programming I believe the KAT500 would only need to know the frequency then it would select the proper antenna from its internal memory. If such an Icom CI-V plug-in device already exists that addresses BOTH the KPA500 and KAT500 issues outlined above please direct me to the product(s). Thanks & 73, Ken WA2LBI On Thu, Jun 18, 2020 at 12:29 PM Gmail - George wrote: > Paula Keezer NX1P modified a KPA500 to allow it to be driven to about 500 > watts by a KX3. > She published it - but I can not find it on the web. > The mod increased the gain by less than 3 db (seems I recall 2.something). > You would need the 12 to 15 watts to drive it to about 500 watts. > > The modification involved removing the input pad and modifying the feed > back > loop to the microprocessor. > I thought about doing the mod to be able to run a net with my KX3 if my K3 > quit. > I have a KXPA and decided not to do the modification. > I can just remove my KX3 & KXPA from my truck if I ever need a backup to > drive the KPA500. Probably 10 minutes work and find the bag of portable > cables. > > BTW - Ms. Keezer's modification was very detailed and she had many > cautions > regarding doing the modification. > It defiantly was not a matter of "cutting a jumper" to remove the input > pad. > You need remove the pad parts and change the number of turns in a > transformer. > > Defiantly would void the warranty and make factory repairs iffy depending > on > Elecraft's policies. > Other manufacturers I have worked with would restore the amp to factory > while repairing it. > > As a ham you are not limited to the 15 db gain restriction - the > manufacturer is but not you. > > 73 > George AI4VZ > > -----Original Message----- > From: Charlie T > Sent: Thursday, June 18, 2020 9:06 AM > To: 'Nr4c' > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] Future of KPA500 & KAT500 > > Isn't there some sort of "jumper" or ???, that will increase the gain to > something other than the ridiculous and prohibitive +13 dB figure, for > "international" (wink-wink) sales, sorta like the "MARS" mod in almost all > radios these days? > > 99.9% of the chicken band users today are happy with their 5 watt radios. > However, that restrictive and useless +13 gain law does NOTHING to stop > the > REALLY big guns on 27.025 who typically run amps using tubes that have > HANDLES on them! > (I've personally seen channel 6 mobile set-ups running power in excess of > 25 > kilowatts.) > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On > Behalf Of Nr4c > Sent: Wednesday, June 17, 2020 3:14 PM > To: Paul Gacek > Cc: Don Putnick ; Elecraft Reflector > > Subject: Re: [Elecraft] Future of KPA500 & KAT500 > > The KAT500 has three antenna out ports. It only needs one In so the KPA500 > needs only one out port. > > As for the 10 W in and 500 out idea. That is prohibited by law. They?re > only allowed to sell an amp with max gain of 13dB. > > Sent from my iPhone > ...nr4c. bill > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gdanner12 at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wa2lbi at gmail.com From phystad at mac.com Thu Jun 18 13:25:48 2020 From: phystad at mac.com (Phil Hystad) Date: Thu, 18 Jun 2020 10:25:48 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <002e01d64571$5b132290$113967b0$@erols.com> <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop> Message-ID: <68A83DCE-C565-45EC-8280-2738699710E9@mac.com> Why would you modify your KPA500 and risk warranty, repair, and clean signals for a mere 1/2 S-Unit at best? > On Jun 18, 2020, at 9:27 AM, Gmail - George wrote: > > Paula Keezer NX1P modified a KPA500 to allow it to be driven to about 500 > watts by a KX3. > She published it - but I can not find it on the web. > The mod increased the gain by less than 3 db (seems I recall 2.something). > You would need the 12 to 15 watts to drive it to about 500 watts. > > The modification involved removing the input pad and modifying the feed back > loop to the microprocessor. > I thought about doing the mod to be able to run a net with my KX3 if my K3 > quit. > I have a KXPA and decided not to do the modification. > I can just remove my KX3 & KXPA from my truck if I ever need a backup to > drive the KPA500. Probably 10 minutes work and find the bag of portable > cables. > > BTW - Ms. Keezer's modification was very detailed and she had many cautions > regarding doing the modification. > It defiantly was not a matter of "cutting a jumper" to remove the input pad. > You need remove the pad parts and change the number of turns in a > transformer. > > Defiantly would void the warranty and make factory repairs iffy depending on > Elecraft's policies. > Other manufacturers I have worked with would restore the amp to factory > while repairing it. > > As a ham you are not limited to the 15 db gain restriction - the > manufacturer is but not you. > > 73 > George AI4VZ > > -----Original Message----- > From: Charlie T > Sent: Thursday, June 18, 2020 9:06 AM > To: 'Nr4c' > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] Future of KPA500 & KAT500 > > Isn't there some sort of "jumper" or ???, that will increase the gain to > something other than the ridiculous and prohibitive +13 dB figure, for > "international" (wink-wink) sales, sorta like the "MARS" mod in almost all > radios these days? > > 99.9% of the chicken band users today are happy with their 5 watt radios. > However, that restrictive and useless +13 gain law does NOTHING to stop the > REALLY big guns on 27.025 who typically run amps using tubes that have > HANDLES on them! > (I've personally seen channel 6 mobile set-ups running power in excess of 25 > kilowatts.) > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Nr4c > Sent: Wednesday, June 17, 2020 3:14 PM > To: Paul Gacek > Cc: Don Putnick ; Elecraft Reflector > > Subject: Re: [Elecraft] Future of KPA500 & KAT500 > > The KAT500 has three antenna out ports. It only needs one In so the KPA500 > needs only one out port. > > As for the 10 W in and 500 out idea. That is prohibited by law. They?re > only allowed to sell an amp with max gain of 13dB. > > Sent from my iPhone > ...nr4c. bill > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gdanner12 at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to phystad at mac.com From dougfaunt at gmail.com Thu Jun 18 13:50:23 2020 From: dougfaunt at gmail.com (Doug Faunt N6TQS +1-510-717-1197) Date: Thu, 18 Jun 2020 10:50:23 -0700 Subject: [Elecraft] Updating K3? Message-ID: I have K3 #22, the second K3 ordered, and the first delivered. I want to upgrade it as much as practical, given that I'm not being very active, and it's a good size for taking along on possible trips. I'm working on an interesting trip on a traditional vessel. I have the Cady book on upgrading; a new interface, antenna and transverter interface, two synthesizers, the general coverage filters mods, stainless steel screws, and a couple of small things. I don't know if the PA power connection parts are in the stash, but that should be easy. Cady's book says it's not known at the time he wrote this if other things are worth doing, but that book is from 2015. So is there a document, or consensus, about what else should be done? 73, doug From mike.harris at horizon.co.fk Thu Jun 18 13:53:31 2020 From: mike.harris at horizon.co.fk (Mike Harris) Date: Thu, 18 Jun 2020 14:53:31 -0300 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <68A83DCE-C565-45EC-8280-2738699710E9@mac.com> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <002e01d64571$5b132290$113967b0$@erols.com> <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop> <68A83DCE-C565-45EC-8280-2738699710E9@mac.com> Message-ID: <5a1ba530-bb21-b87c-a3cd-5fa59ca042d2@horizon.co.fk> The mod applies to the ability to increase the sensitivity (gain) of the amp by bypassing the input attenuator so that it can be driven to a useful power output with a lower power exciter. There isn't any suggestion that the amp should be driven beyond its normal power level. Hence unless the exciter was dirty, clean signals is not part of the equation. Regards, Mike VP8NO 18/06/2020 14:25, Phil Hystad via Elecraft wrote: > Why would you modify your KPA500 and risk warranty, repair, and clean signals for a mere 1/2 S-Unit at best? > > > >> On Jun 18, 2020, at 9:27 AM, Gmail - George wrote: >> >> Paula Keezer NX1P modified a KPA500 to allow it to be driven to about 500 >> watts by a KX3. >> She published it - but I can not find it on the web. >> The mod increased the gain by less than 3 db (seems I recall 2.something). >> You would need the 12 to 15 watts to drive it to about 500 watts. From k6mr at outlook.com Thu Jun 18 14:13:06 2020 From: k6mr at outlook.com (Ken K6MR) Date: Thu, 18 Jun 2020 18:13:06 +0000 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <68A83DCE-C565-45EC-8280-2738699710E9@mac.com> References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <002e01d64571$5b132290$113967b0$@erols.com> <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop>, <68A83DCE-C565-45EC-8280-2738699710E9@mac.com> Message-ID: Before the KPA1500 was released, I ran two KPA500s in parallel. On the high bands, a K3 would not drive both amps to 500 watts. The NX1P mod enabled a full 1000 W out on all bands. Ken K6MR From: Phil Hystad via Elecraft Sent: Thursday, June 18, 2020 10:28 To: Gmail - George Cc: Elecraft at mailman.qth.net Subject: Re: [Elecraft] Future of KPA500 & KAT500 Why would you modify your KPA500 and risk warranty, repair, and clean signals for a mere 1/2 S-Unit at best? > On Jun 18, 2020, at 9:27 AM, Gmail - George wrote: > > Paula Keezer NX1P modified a KPA500 to allow it to be driven to about 500 > watts by a KX3. > She published it - but I can not find it on the web. > The mod increased the gain by less than 3 db (seems I recall 2.something). > You would need the 12 to 15 watts to drive it to about 500 watts. > > The modification involved removing the input pad and modifying the feed back > loop to the microprocessor. > I thought about doing the mod to be able to run a net with my KX3 if my K3 > quit. > I have a KXPA and decided not to do the modification. > I can just remove my KX3 & KXPA from my truck if I ever need a backup to > drive the KPA500. Probably 10 minutes work and find the bag of portable > cables. > > BTW - Ms. Keezer's modification was very detailed and she had many cautions > regarding doing the modification. > It defiantly was not a matter of "cutting a jumper" to remove the input pad. > You need remove the pad parts and change the number of turns in a > transformer. > > Defiantly would void the warranty and make factory repairs iffy depending on > Elecraft's policies. > Other manufacturers I have worked with would restore the amp to factory > while repairing it. > > As a ham you are not limited to the 15 db gain restriction - the > manufacturer is but not you. > > 73 > George AI4VZ > > -----Original Message----- > From: Charlie T > Sent: Thursday, June 18, 2020 9:06 AM > To: 'Nr4c' > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] Future of KPA500 & KAT500 > > Isn't there some sort of "jumper" or ???, that will increase the gain to > something other than the ridiculous and prohibitive +13 dB figure, for > "international" (wink-wink) sales, sorta like the "MARS" mod in almost all > radios these days? > > 99.9% of the chicken band users today are happy with their 5 watt radios. > However, that restrictive and useless +13 gain law does NOTHING to stop the > REALLY big guns on 27.025 who typically run amps using tubes that have > HANDLES on them! > (I've personally seen channel 6 mobile set-ups running power in excess of 25 > kilowatts.) > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Nr4c > Sent: Wednesday, June 17, 2020 3:14 PM > To: Paul Gacek > Cc: Don Putnick ; Elecraft Reflector > > Subject: Re: [Elecraft] Future of KPA500 & KAT500 > > The KAT500 has three antenna out ports. It only needs one In so the KPA500 > needs only one out port. > > As for the 10 W in and 500 out idea. That is prohibited by law. They?re > only allowed to sell an amp with max gain of 13dB. > > Sent from my iPhone > ...nr4c. bill > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gdanner12 at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to phystad at mac.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k6mr at outlook.com From jim at audiosystemsgroup.com Thu Jun 18 14:21:51 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 18 Jun 2020 11:21:51 -0700 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <002e01d64571$5b132290$113967b0$@erols.com> <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop> Message-ID: Hi Ken, All it takes to band switch both amp and tuner is a dit or a tap on the mic. 73, Jim K9YC On 6/18/2020 10:23 AM, Ken Winterling wrote: > There is no provision at all to communicate with the KAT500 so it > must RF sense to switch bands and select the correct antenna. While this > works well when transmitting it is of no value when you are just listening > or scanning. From wa2lbi at gmail.com Thu Jun 18 19:29:30 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Thu, 18 Jun 2020 19:29:30 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: References: <15600AF0-64D3-4761-BDC2-3FE81604DDE2@widomaker.com> <002e01d64571$5b132290$113967b0$@erols.com> <31075EFB43FD405CA56A5FB76D6CA39B@OfficeDeskTop> Message-ID: I've had the amp and tuner for more than two years so I know about their RF sensing. It works well when I'm changing bands with the intent of transmitting. However, as I said, that does not work when I am changing bands on the rig to listen to different bands or scanning different bands. If I am on 75M and want to check the conditions on 20M I can't simply select 20M or a 20M memory and listen. I have to transmit so the KT500 will select the correct antenna. If I'm not on a memorized frequency in a KAT500 "bin" it will start tuning, taking up even more time. I'm looking for a solution that presets the KPA500 band, the KAT500 band, and the KAT500 antenna without transmitting. I believe an Elecraft transceiver connected to the KPA500 and KAT500 can do that. Ken WA2LBI On Thu, Jun 18, 2020 at 2:22 PM Jim Brown wrote: > Hi Ken, > > All it takes to band switch both amp and tuner is a dit or a tap on the > mic. > > 73, Jim K9YC > > On 6/18/2020 10:23 AM, Ken Winterling wrote: > > There is no provision at all to communicate with the KAT500 so it > > must RF sense to switch bands and select the correct antenna. While this > > works well when transmitting it is of no value when you are just > listening > > or scanning. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wa2lbi at gmail.com > From pfizenmayer at q.com Thu Jun 18 23:09:41 2020 From: pfizenmayer at q.com (HP) Date: Thu, 18 Jun 2020 23:09:41 -0400 (EDT) Subject: [Elecraft] K3 upgrade Message-ID: <1476383162.10742028.1592536181219.JavaMail.zimbra@q.com> Do I understand correctly that to upgrade a K3 SN 7500 series with the KXV3A installed - only requires the KXV3B board for upgrade with the additional preamp , not the entire KXV3B ? Hank K7HP From oz6abm at qsl.net Thu Jun 18 23:30:07 2020 From: oz6abm at qsl.net (oz6abm at qsl.net) Date: Fri, 19 Jun 2020 05:30:07 +0200 Subject: [Elecraft] Low tone audio Tx Message-ID: <000401d645e9$ee43b700$cacb2500$@qsl.net> Hi How do I get my K3 Tx audio to have more ?punch?. It sounds very low-toned and adjusting the CMP just causes lots of distortion at high values? Thanks Robin From k5rhd.73 at gmail.com Fri Jun 19 00:52:41 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Thu, 18 Jun 2020 22:52:41 -0600 Subject: [Elecraft] New K144XV module installed no power out.. Message-ID: <2E17609C-85BA-42AC-BFBE-9945C777CC12@gmail.com> Hello, I just received my new K244XV in the mail today. I followed the instructions on how to install in my K3s (with a SN of 111xx). To a tee. I can adjust and see drive on the RF meter and it looks like I should be driving it to full power but through a W2 wattmeter into a dummy load, I have zero power out but it does draw about 3.5A when I press and hold the tune button for a very short time. I have triple checked all the TMP cables in and out of the KXV3A board and into the K144XV. I am getting power to the unit and two quick blinks of the LED of the XV when I power on the radio. I have checked my menu settings and those are to spec per the instructions. It seems to be drawing current and everything I set right from what I can tell, what am I missing? TIA, 73 K5RHD /randy From jim at audiosystemsgroup.com Fri Jun 19 01:25:40 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 18 Jun 2020 22:25:40 -0700 Subject: [Elecraft] Low tone audio Tx In-Reply-To: <000401d645e9$ee43b700$cacb2500$@qsl.net> References: <000401d645e9$ee43b700$cacb2500$@qsl.net> Message-ID: <8ec17213-5f9f-9998-55d1-83e453711172@audiosystemsgroup.com> On 6/18/2020 8:30 PM, oz6abm at qsl.net wrote: > How do I get my K3 Tx audio to have more ?punch?. Set TXEQ as follows: Three lowest bands max cut (-18 dB), fourth band -6 dB, two highest bands +3 dB. Turn COMP all the way down, then set Mic Gain per the manual. NOW, turn up COMP, set the display meter to read Comp, and while to talk like you would on the air, increase COMP until you see about 10 dB of COMP on the meter on voice peaks. Now get some signal reports from "good" listeners. Tell them to listen with their widest IF filter setting. Tell them you DON'T want "warmth" or "fullness," you want a signal that will cut through QRM an noise, but still sound pleasant. Depending on your mic and your voice, you may want to use more or less cut of the 4th band, and a little more boost of the top two. Don't go higher than 6 dB. 73, Jim K9YC From gt-i at gmx.net Fri Jun 19 06:49:49 2020 From: gt-i at gmx.net (gt-i at gmx.net) Date: Fri, 19 Jun 2020 12:49:49 +0200 Subject: [Elecraft] New K144XV module installed no power out.. In-Reply-To: <2E17609C-85BA-42AC-BFBE-9945C777CC12@gmail.com> References: <2E17609C-85BA-42AC-BFBE-9945C777CC12@gmail.com> Message-ID: Check the outside connections. Where did you connect the W2 to? Does your W2 has the VHF-coupler connected? Is the dummy load ok for VHF? From rwnewbould at comcast.net Fri Jun 19 08:46:49 2020 From: rwnewbould at comcast.net (Rich) Date: Fri, 19 Jun 2020 08:46:49 -0400 Subject: [Elecraft] Current Draw on 20M Message-ID: I just received my K3S back from repair and all seemed OK. However it appears to draw much more current on 20M than any other band.?? 22 - 24 amps.? I have tried two different 20m antennas and a dummy load. All other bands are 20 amps or lower.? Some as low at 17amps. Power Supply voltage per K3s display 14.0v standby and 13.3 on TX First off is this actually something of concern? I hate to do a calibration as it was just done by Elecraft service two weeks ago. From john at kk9a.com Fri Jun 19 09:54:24 2020 From: john at kk9a.com (john at kk9a.com) Date: Fri, 19 Jun 2020 08:54:24 -0500 Subject: [Elecraft] Future of KPA500 & KAT500 Message-ID: <20200619085424.Horde.aOyYdM592UZx2Yg8Mop_czy@www11.qth.com> The KAT500 only has three outputs which for me is insufficient and I do not even operate WARC bands. For the last couple of decades I have used a Top Ten band decoder to switch antenna relay boxes. This worked perfectly with my Yaesu line and now with my Elecraft K3S's. You did not mention your radio type in this post but if it has a band output you could do the same and always be on the correct antenna. John KK9A Ken wa2lbi wrote: I've had the amp and tuner for more than two years so I know about their RF sensing. It works well when I'm changing bands with the intent of transmitting. However, as I said, that does not work when I am changing bands on the rig to listen to different bands or scanning different bands. If I am on 75M and want to check the conditions on 20M I can't simply select 20M or a 20M memory and listen. I have to transmit so the KT500 will select the correct antenna. If I'm not on a memorized frequency in a KAT500 "bin" it will start tuning, taking up even more time. I'm looking for a solution that presets the KPA500 band, the KAT500 band, and the KAT500 antenna without transmitting. I believe an Elecraft transceiver connected to the KPA500 and KAT500 can do that. Ken WA2LBI From k5rhd.73 at gmail.com Fri Jun 19 10:42:15 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Fri, 19 Jun 2020 08:42:15 -0600 Subject: [Elecraft] New K144XV module installed no power out.. In-Reply-To: <005701d64606$11f3d970$35db8c50$@kpnplanet.nl> References: <005701d64606$11f3d970$35db8c50$@kpnplanet.nl> Message-ID: <942C99FD-3212-4AAF-9038-221C131E36D3@gmail.com> Hello Henk, I will break out the multimeter today. I finished putting it all together late last night and was too frustrated to go any further. Also, I hear nothing and the S-Meter literally has no activity but I can hear static. Thanks for the tips and I will reply back once I have checked the cables for shorts. 73 K5RHD /randy > On Jun 19, 2020, at 12:51 AM, wrote: > > Just a thought: can you receive (preferably weak) stations on 2 meters? > That proves the Ant3 coax is OK. > > 73 Henk > > Van: hdv > > Verzonden: vrijdag 19 juni 2020 08:06 > Aan: Randy Diddel > > Onderwerp: RE: [Elecraft] New K144XV module installed no power out.. > > Hi Randy > > It looks like the unit works ok, but cannot transfer power somewhere. > > Check the Ant3 coax for a short. > Check with an ohm meter if the TMP output connector makes connection from center BNC to center pin of TMP on pcb. > > If that is ok, check the voltages on the PIN diodes in rx and tx and the diodes themselves. > > 73 Henk > PA0C > > > > Verzonden vanaf mijn Samsung Galaxy-smartphone. > > > Virusvrij. www.avast.com From johnk2jhu at gmail.com Fri Jun 19 10:45:55 2020 From: johnk2jhu at gmail.com (John Dorson) Date: Fri, 19 Jun 2020 10:45:55 -0400 Subject: [Elecraft] K2 Mode setting Message-ID: Is the mode setting for each band/frequency on the K2. As an example I have 40 meters in vfo b with the mode set to C. (all of my cw frequencies are stored in vfo B.) If I switch to 40 meter ssb, via the A/B switch, the mode comes up with C even though I was previously on LSB. John K2JHU... From ghyoungman at gmail.com Fri Jun 19 11:34:30 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 19 Jun 2020 11:34:30 -0400 Subject: [Elecraft] New K144XV module installed no power out.. In-Reply-To: <942C99FD-3212-4AAF-9038-221C131E36D3@gmail.com> References: <005701d64606$11f3d970$35db8c50$@kpnplanet.nl> <942C99FD-3212-4AAF-9038-221C131E36D3@gmail.com> Message-ID: <100EEBC5-2F54-4C1E-8882-5B86A63A9817@gmail.com> That makes it sound like there?s a problem with the antenna port ? I don?t recall how the internal jack is situated for the antenna line ? but you may want to be sure on all of these that when you inserted the TMP cable you didn?t miss the center of the socket and pushed it back instead of getting the tip of the plug fully inserted. I found for a couple of them that the back of the socket is not well supported internally and was bitten by this problem. I ended up using a thin bladed screwdriver to support the center of the socket assembly while inserting the cables. Grant NQ5T > On Jun 19, 2020, at 10:42 AM, Randy Diddel wrote: > > Hello Henk, > > I will break out the multimeter today. I finished putting it all together late last night and was too frustrated to go any further. > > Also, I hear nothing and the S-Meter literally has no activity but I can hear static. > > Thanks for the tips and I will reply back once I have checked the cables for shorts. > > 73 > > K5RHD > > /randy > >> On Jun 19, 2020, at 12:51 AM, wrote: >> >> Just a thought: can you receive (preferably weak) stations on 2 meters? >> That proves the Ant3 coax is OK. >> >> 73 Henk >> >> Van: hdv > >> Verzonden: vrijdag 19 juni 2020 08:06 >> Aan: Randy Diddel > >> Onderwerp: RE: [Elecraft] New K144XV module installed no power out.. >> >> Hi Randy >> >> It looks like the unit works ok, but cannot transfer power somewhere. >> >> Check the Ant3 coax for a short. >> Check with an ohm meter if the TMP output connector makes connection from center BNC to center pin of TMP on pcb. >> >> If that is ok, check the voltages on the PIN diodes in rx and tx and the diodes themselves. >> >> 73 Henk >> PA0C >> >> >> >> Verzonden vanaf mijn Samsung Galaxy-smartphone. >> >> >> Virusvrij. www.avast.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ghyoungman at gmail.com From reillyjf at comcast.net Fri Jun 19 12:04:02 2020 From: reillyjf at comcast.net (John Reilly) Date: Fri, 19 Jun 2020 10:04:02 -0600 Subject: [Elecraft] [K3] RTTY Setup Message-ID: I've recently changed from FSK to AFSK, and having issues. FWIW, I am using N1MM with 2Tone as my RTTY interface, with the K3 internal sound card. First, When I go to DATA MD, it is always set to FSK D. I reset it to AFSK A and it works; however, if I change bands, it resets itself to FSK D. The AFSK A setting does not "stick" - is there a way to make the K3 remember this setting? Second, the K3 is staying in Transmit after the RTTY message is finished. I usually have to press the XMIT button to return to receive. I do not have anything setup in the 2Tone PTT box, which I suspect is the problem. I tried to use the serial DTR, but 2Tone was unable to use the serial port that N1MM was using. I also tried VOX, but did not see a difference. Any suggestions for setting up AFSK PTT? Thanks, ? - 73, John, N0TA From wa2lbi at gmail.com Fri Jun 19 12:38:34 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Fri, 19 Jun 2020 12:38:34 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 Message-ID: John, The radio, an IC-7610, and the fact that I use a HB band data cable to the KPA500, was included in my original post. The band data cable switches the bands on the amp, except for WARC, but there is no communication to the KAT500 so it remains on the last band/frequency and antenna selected at the last application of RF. The problem is that if I am just listening and select another band the KAT500 will not move to the correct band and antenna. This is not a problem if I intend to operate on the new band but it is particularly inconvenient when simply switching between radio memories to check for activity on stored frequencies which could be on any band/antenna. It also affects memory scanning for the same reason. After a band change the KAT500 is not on the correct band and antenna so the received signal is greatly attenuated. Elecraft transceivers "talk" to both the KPA500 and the KAT500 and keep them updated with frequency changes so the KAT500 selects the proper tuning and antenna for the frequency selected on the rig without transmitting. I'm looking for a solution that mimics Elececraft's operation. An Arduino project has been suggested to me and I might need to learn to program one to read Icom CI-V data and communicate with both the KPA500 and KAT500 if I can't find any other solution. Apparently I'm in a very small minority that would find this feature useful. As for using a Top Ten band decoder, or any other decoder, to switch the antenna system external to the KAT500 would not help with the KAT500 issues of remaining on the last RF-selected band and antenna. Simply changing the antenna external to the KAT500 does not help with the KAT500 still being tuned to the wrong band and antenna and attenuating the received signal. *Ken * *WA2LBI * *LG G6 * ------ Original message------ *From: *john at kk9a.com *Date: *Fri, Jun 19, 2020 09:55 *To: *elecraft at mailman.qth.net; *Cc: * *Subject:*Re: [Elecraft] Future of KPA500 & KAT500 The KAT500 only has three outputs which for me is insufficient and I do not even operate WARC bands. For the last couple of decades I have used a Top Ten band decoder to switch antenna relay boxes. This worked perfectly with my Yaesu line and now with my Elecraft K3S's. You did not mention your radio type in this post but if it has a band output you could do the same and always be on the correct antenna. John KK9A Ken wa2lbi wrote: I've had the amp and tuner for more than two years so I know about their RF sensing. It works well when I'm changing bands with the intent of transmitting. However, as I said, that does not work when I am changing bands on the rig to listen to different bands or scanning different bands. If I am on 75M and want to check the conditions on 20M I can't simply select 20M or a 20M memory and listen. I have to transmit so the KT500 will select the correct antenna. If I'm not on a memorized frequency in a KAT500 "bin" it will start tuning, taking up even more time. I'm looking for a solution that presets the KPA500 band, the KAT500 band, and the KAT500 antenna without transmitting. I believe an Elecraft transceiver connected to the KPA500 and KAT500 can do that. Ken WA2LBI ______________________________________________________________Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wa2lbi at gmail.com From lists at subich.com Fri Jun 19 12:47:43 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Fri, 19 Jun 2020 12:47:43 -0400 Subject: [Elecraft] [K3] RTTY Setup In-Reply-To: References: Message-ID: 1) Are you changing bands on the rig or by using N1MM+? a) If "rig" - Data Mode is stored by band. Change it on each band. b) If "N1MM+" - be sure to set "Digital Modes" to AFSK > Second, the K3 is staying in Transmit after the RTTY message is > finished. I usually have to press the XMIT button to return to > receive. Assuming this is with N1MM+ - set the rig port to allow Command PTT for digital and make sure all your messages end with the command to return to receive (%E or %R - I'm not sure and not in front of N1MM). 73, ... Joe, W4TV On 2020-06-19 12:04 PM, John Reilly wrote: > I've recently changed from FSK to AFSK, and having issues. FWIW, I am > using N1MM with 2Tone as my RTTY interface, with the K3 internal sound > card. > > First, When I go to DATA MD, it is always set to FSK D. I reset it to > AFSK A and it works; however, if I change bands, it resets itself to FSK > D. The AFSK A setting does not "stick" - is there a way to make the K3 > remember this setting? > > Second, the K3 is staying in Transmit after the RTTY message is > finished. I usually have to press the XMIT button to return to receive. > I do not have anything setup in the 2Tone PTT box, which I suspect is > the problem. I tried to use the serial DTR, but 2Tone was unable to use > the serial port that N1MM was using. I also tried VOX, but did not see a > difference. Any suggestions for setting up AFSK PTT? > > Thanks, > ? - 73, John, N0TA From w8fn at windstream.net Fri Jun 19 13:02:52 2020 From: w8fn at windstream.net (Randy Farmer) Date: Fri, 19 Jun 2020 13:02:52 -0400 Subject: [Elecraft] Current Draw on 20M In-Reply-To: References: Message-ID: <11c402b2-fd08-1366-1828-66cc35145f78@windstream.net> Mine does exactly the same thing. I even ran it through factory service to be sure there wasn't a problem with the LPF module that might be causing trouble. They calibrated it and returned it with a clean bill of health. It still draws significantly more current on 20 than on any other band. 73... Randy, W8FN On 6/19/2020 8:46 AM, Rich wrote: > I just received my K3S back from repair and all seemed OK. However it > appears to draw much more current on 20M than any other band.?? 22 - > 24 amps.? I have tried two different 20m antennas and a dummy load. > > All other bands are 20 amps or lower.? Some as low at 17amps. > > Power Supply voltage per K3s display 14.0v standby and 13.3 on TX > > First off is this actually something of concern? > > I hate to do a calibration as it was just done by Elecraft service two > weeks ago. From wunder at wunderwood.org Fri Jun 19 13:04:57 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Fri, 19 Jun 2020 10:04:57 -0700 Subject: [Elecraft] Low tone audio Tx In-Reply-To: <8ec17213-5f9f-9998-55d1-83e453711172@audiosystemsgroup.com> References: <000401d645e9$ee43b700$cacb2500$@qsl.net> <8ec17213-5f9f-9998-55d1-83e453711172@audiosystemsgroup.com> Message-ID: To get pictures of that recommendation, see this blog post. I collected a dozen sets of transmit equalization settings from this list and K9YC?s settings were representative of the consensus. The process for the KX3 uses the digital voice recorder and A/B comparison by ear. In the KX3, the DVR is after equalization and compression in the transmit audio chain. Someone with detailed knowledge of the K3 would have to say whether that also works for that rig. https://observer.wunderwood.org/2015/09/09/transmit-audio-and-compression-with-the-elecraft-kx3/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 18, 2020, at 10:25 PM, Jim Brown wrote: > > On 6/18/2020 8:30 PM, oz6abm at qsl.net wrote: >> How do I get my K3 Tx audio to have more ?punch?. > > Set TXEQ as follows: Three lowest bands max cut (-18 dB), fourth band -6 dB, two highest bands +3 dB. Turn COMP all the way down, then set Mic Gain per the manual. NOW, turn up COMP, set the display meter to read Comp, and while to talk like you would on the air, increase COMP until you see about 10 dB of COMP on the meter on voice peaks. > > Now get some signal reports from "good" listeners. Tell them to listen with their widest IF filter setting. Tell them you DON'T want "warmth" or "fullness," you want a signal that will cut through QRM an noise, but still sound pleasant. Depending on your mic and your voice, you may want to use more or less cut of the 4th band, and a little more boost of the top two. Don't go higher than 6 dB. > > 73, Jim K9YC From keith at elecraft.com Fri Jun 19 13:41:07 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Fri, 19 Jun 2020 10:41:07 -0700 Subject: [Elecraft] K3 upgrade KXV3 or B In-Reply-To: <1476383162.10742028.1592536181219.JavaMail.zimbra@q.com> References: <1476383162.10742028.1592536181219.JavaMail.zimbra@q.com> Message-ID: <2910a64f-bc1a-76a6-7acf-ab5d3f14c068@elecraft.com> Hi Hank; The KXV3, in any revision, is a two-board set that is already soldered together. You replace the whole thing, never are they taken apart. Keith WE6R, Elecraft K3 Tech From ac5p at sbcglobal.net Fri Jun 19 13:54:19 2020 From: ac5p at sbcglobal.net (Mike Maloney) Date: Fri, 19 Jun 2020 17:54:19 +0000 (UTC) Subject: [Elecraft] Current Draw on 20M In-Reply-To: <11c402b2-fd08-1366-1828-66cc35145f78@windstream.net> References: <11c402b2-fd08-1366-1828-66cc35145f78@windstream.net> Message-ID: <248906677.602578.1592589259116@mail.yahoo.com> FWIW, my old K3 (Nov'08) only pulls 17.8Adc at 12.5V for 100W into 50ohm dummy load at 14MHz.?? Seems to follow your PA temp is gonna run hotter also.? WHY such poor efficiency Elecraft, (Wayne) ? 73,Mike, AC5P On Friday, June 19, 2020, 12:03:45 PM CDT, Randy Farmer wrote: Mine does exactly the same thing. I even ran it through factory service to be sure there wasn't a problem with the LPF module that might be causing trouble. They calibrated it and returned it with a clean bill of health. It still draws significantly more current on 20 than on any other band. 73... Randy, W8FN On 6/19/2020 8:46 AM, Rich wrote: > I just received my K3S back from repair and all seemed OK. However it > appears to draw much more current on 20M than any other band.?? 22 - > 24 amps.? I have tried two different 20m antennas and a dummy load. > > All other bands are 20 amps or lower.? Some as low at 17amps. > > Power Supply voltage per K3s display 14.0v standby and 13.3 on TX > > First off is this actually something of concern? > > I hate to do a calibration as it was just done by Elecraft service two > weeks ago. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ac5p at sbcglobal.net From jim at audiosystemsgroup.com Fri Jun 19 16:43:23 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 19 Jun 2020 13:43:23 -0700 Subject: [Elecraft] Low tone audio Tx In-Reply-To: <2c1bb33e-8ebc-f842-e3ff-a7e9fd0a4902@comcast.net> References: <000401d645e9$ee43b700$cacb2500$@qsl.net> <8ec17213-5f9f-9998-55d1-83e453711172@audiosystemsgroup.com> <2c1bb33e-8ebc-f842-e3ff-a7e9fd0a4902@comcast.net> Message-ID: Thanks Gus. It's been almost ten years since I set mine. :) 73, Jim K9YC On 6/19/2020 8:22 AM, Augie "Gus" Hansen wrote: > The adjustment range is ? 16 dB, not 18. Let's not have folks thinking > their K3s are broken because they don't go that far. ;>) From nr4c at widomaker.com Fri Jun 19 17:24:16 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 19 Jun 2020 17:24:16 -0400 Subject: [Elecraft] K3 upgrade In-Reply-To: <1476383162.10742028.1592536181219.JavaMail.zimbra@q.com> References: <1476383162.10742028.1592536181219.JavaMail.zimbra@q.com> Message-ID: <1210F613-E82C-4E09-BC77-628A66263EAE@widomaker.com> I believe it?s 3 boards. It included a back panel board with USB and a RJ45 that replaces the DE-9 for serial connection. If you have a P3 there is a ?Y? cable that connects the TJ45 to the two P3 serial ports. Sent from my iPhone ...nr4c. bill > On Jun 18, 2020, at 11:11 PM, HP wrote: > > ?Do I understand correctly that to upgrade a K3 SN 7500 series with the KXV3A installed - only requires the > KXV3B board for upgrade with the additional preamp , not the entire KXV3B ? > > > Hank K7HP > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From jackbrindle at me.com Fri Jun 19 18:25:59 2020 From: jackbrindle at me.com (Jack Brindle) Date: Fri, 19 Jun 2020 15:25:59 -0700 Subject: [Elecraft] K3 upgrade In-Reply-To: <1210F613-E82C-4E09-BC77-628A66263EAE@widomaker.com> References: <1476383162.10742028.1592536181219.JavaMail.zimbra@q.com> <1210F613-E82C-4E09-BC77-628A66263EAE@widomaker.com> Message-ID: That is a KIO3B, Not a KXV3B. One is for computer & AuxIO communications, the other has BNC connectors for various RF functions. 73! Jack, W6FB > On Jun 19, 2020, at 2:24 PM, Nr4c wrote: > > I believe it?s 3 boards. It included a back panel board with USB and a RJ45 that replaces the DE-9 for serial connection. If you have a P3 there is a ?Y? cable that connects the TJ45 to the two P3 serial ports. > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 18, 2020, at 11:11 PM, HP wrote: >> >> ?Do I understand correctly that to upgrade a K3 SN 7500 series with the KXV3A installed - only requires the >> KXV3B board for upgrade with the additional preamp , not the entire KXV3B ? >> >> >> Hank K7HP >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From wb2abd at outlook.com Fri Jun 19 18:52:58 2020 From: wb2abd at outlook.com (Paul Antos) Date: Fri, 19 Jun 2020 22:52:58 +0000 Subject: [Elecraft] [K3] RTTY setup Message-ID: These are N1MM + questions. The mode selection is in the N1MM / MMTTY configuration. The hanging PTT is from multiple instances of PTT asserted. I had this problem with my IC-7610, but I had too many PTTs in the configuration. N1MM documentation should contain specific documentation for setup with any popular rig. That's the place to go. Paul NS2N Get Outlook for Android From kengkopp at gmail.com Fri Jun 19 16:05:41 2020 From: kengkopp at gmail.com (Ken G Kopp) Date: Fri, 19 Jun 2020 14:05:41 -0600 Subject: [Elecraft] I'm building a personal email list.... Message-ID: If you -don't- want to be included -do- say so. I won't be offended. Regards, Ken Kopp - K0PP From al.k0vm at yahoo.com Fri Jun 19 19:14:05 2020 From: al.k0vm at yahoo.com (Al K0VM) Date: Fri, 19 Jun 2020 18:14:05 -0500 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: Message-ID: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> not me al, K0VM On 6/19/2020 3:05 PM, Ken G Kopp wrote: > If you -don't- want to be included -do- say so. I won't be offended. > > Regards, > > Ken Kopp - K0PP > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to al.k0vm at yahoo.com From nr4c at widomaker.com Fri Jun 19 19:36:22 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 19 Jun 2020 19:36:22 -0400 Subject: [Elecraft] K3 upgrade In-Reply-To: References: Message-ID: <4B5E59ED-81F6-4DC5-BB7D-4CAC3D18897C@widomaker.com> Oops. My bad! Sent from my iPhone ...nr4c. bill > On Jun 19, 2020, at 6:26 PM, Jack Brindle wrote: > > ?That is a KIO3B, Not a KXV3B. > One is for computer & AuxIO communications, the other has BNC connectors for various RF functions. > > 73! > Jack, W6FB > > >> On Jun 19, 2020, at 2:24 PM, Nr4c wrote: >> >> I believe it?s 3 boards. It included a back panel board with USB and a RJ45 that replaces the DE-9 for serial connection. If you have a P3 there is a ?Y? cable that connects the TJ45 to the two P3 serial ports. >> >> Sent from my iPhone >> ...nr4c. bill >> >> >>>> On Jun 18, 2020, at 11:11 PM, HP wrote: >>> >>> ?Do I understand correctly that to upgrade a K3 SN 7500 series with the KXV3A installed - only requires the >>> KXV3B board for upgrade with the additional preamp , not the entire KXV3B ? >>> >>> >>> Hank K7HP >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to nr4c at widomaker.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jackbrindle at me.com > From gt-i at gmx.net Fri Jun 19 19:38:01 2020 From: gt-i at gmx.net (gt-i at gmx.net) Date: Sat, 20 Jun 2020 01:38:01 +0200 Subject: [Elecraft] K3 Utility Restore config error Message-ID: Hello, anybody encountered a problem restoring a previously saved configuration? The error is "No response to write EEPROM block". tnx 73 Gernot DF5RF From c-hawley at illinois.edu Fri Jun 19 20:10:32 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sat, 20 Jun 2020 00:10:32 +0000 Subject: [Elecraft] K3 Utility Restore config error In-Reply-To: References: Message-ID: <99A326B3-157A-4AC9-BC30-7CF24ED3F1A8@illinois.edu> I?ve gotten that. I just saved again and that one was ok. Then I deleted the error one...but I don?t think the save with the error is necessarily bad. Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Jun 19, 2020, at 6:38 PM, "gt-i at gmx.net" wrote: > > ?Hello, > anybody encountered a problem restoring a previously saved > configuration? The error is "No response to write EEPROM block". > tnx 73 Gernot DF5RF > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From ken.kj9b at gmail.com Fri Jun 19 21:22:23 2020 From: ken.kj9b at gmail.com (Ken Bandy, KJ9B) Date: Fri, 19 Jun 2020 21:22:23 -0400 Subject: [Elecraft] Possible for KPOD to control P3? Message-ID: <0ce801d646a1$40225880$c0670980$@gmail.com> Hello all. I just became the proud owner of a KPOD to add to my Elecraft stable. Lots of times, especially when S&P in contests, I tune my K3S with my P3. Is it possible to configure the KPOD to emulate the "select" control on the P3, and then program one of the Function buttons to emulate "tapping" the "select" button, thereby tuning the radio? Thanks in advance! 73, Ken, KJ9B From dobox at suddenlink.net Fri Jun 19 21:41:57 2020 From: dobox at suddenlink.net (David Box) Date: Fri, 19 Jun 2020 20:41:57 -0500 Subject: [Elecraft] Possible for KPOD to control P3? In-Reply-To: <0ce801d646a1$40225880$c0670980$@gmail.com> References: <0ce801d646a1$40225880$c0670980$@gmail.com> Message-ID: Ken The K3 is not capable of sending commands to the P3, the KPOD only causes macros you have stored in the K3 to execute so no P3 commands possible. de Dave K5MWR On June 19, 2020 8:22:23 PM CDT, "Ken Bandy, KJ9B" wrote: >Hello all. I just became the proud owner of a KPOD to add to my >Elecraft >stable. Lots of times, especially when S&P in contests, I tune my K3S >with >my P3. Is it possible to configure the KPOD to emulate the "select" >control >on the P3, and then program one of the Function buttons to emulate >"tapping" >the "select" button, thereby tuning the radio? > > > >Thanks in advance! > > > >73, > >Ken, KJ9B > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to dobox at suddenlink.net -- Sent from my Android device with K-9 Mail. Please excuse my brevity. From douglas.hagerman at me.com Fri Jun 19 21:57:00 2020 From: douglas.hagerman at me.com (Douglas Hagerman) Date: Fri, 19 Jun 2020 19:57:00 -0600 Subject: [Elecraft] K6XX CW Indicator SMD Button LED Key installation Message-ID: <46A2D50C-EAA2-4B4F-B630-9E136CF7427C@me.com> Can anyone explain how the SMD LED is to be mounted in the key cap for the K1 or K2 installation of the K6XX CW Indicator? I have an unbuilt kit (well, it is built now) and the key cap kit, but no instructions for how to install the LED. The key cap in the kit is drilled, and the LED appears to fit into the rectangular opening in the key cap so that the LED would shine out the hole. But then how do you connect to the LED? There are also two SMD 3.3k ohm resistors in the key cap kit. I can visualize putting the LED in the cap, and then soldering the two resistors onto the LED into a U-shape, and then wires onto the ends of the resistors, I guess. That would give a resistor value comparable to the 6.8k ohms mentioned in the main part of the kit. The main part of the kit also has a regular (large) LED that I could use with the ?looking out an existing hole? method, but the keycap idea seems attractive?IF I can figure out how to do it! Thanks. Doug, w0uhu. From w6png at yahoo.com Fri Jun 19 22:48:27 2020 From: w6png at yahoo.com (Paul Gacek) Date: Fri, 19 Jun 2020 19:48:27 -0700 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> Message-ID: <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> Do we get paid to be on the personal email list? Paul W6PNG/M0SNA www.nomadic.blog > On Jun 19, 2020, at 4:16 PM, Al K0VM via Elecraft wrote: > > ?not me > al, K0VM > >> On 6/19/2020 3:05 PM, Ken G Kopp wrote: >> If you -don't- want to be included -do- say so. I won't be offended. >> >> Regards, >> >> Ken Kopp - K0PP >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to al.k0vm at yahoo.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6png at yahoo.com From n8ag at comcast.net Fri Jun 19 23:46:57 2020 From: n8ag at comcast.net (Dave) Date: Fri, 19 Jun 2020 23:46:57 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 Message-ID: Ken, Can?t you simply press a couple of buttons on the KPA500 and the KAT500 to listen on a different band? No RF required. No tune required. 73, Dave N8AG Sent from Mail for Windows 10 From oz6abm at qsl.net Sat Jun 20 01:21:10 2020 From: oz6abm at qsl.net (oz6abm at qsl.net) Date: Sat, 20 Jun 2020 07:21:10 +0200 Subject: [Elecraft] KX3 buttons.... Message-ID: <000001d646c2$9c388d80$d4a9a880$@qsl.net> Can anyone tell me where I find the 7 and 8 digit buttons on the KX3 front panel. I need to use them for config. entries and looking at the panel and in the guide they are nowhere to be seen ??? Thanks Robin From n6kr at elecraft.com Sat Jun 20 01:24:28 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Fri, 19 Jun 2020 22:24:28 -0700 Subject: [Elecraft] KX3 buttons.... In-Reply-To: <000001d646c2$9c388d80$d4a9a880$@qsl.net> References: <000001d646c2$9c388d80$d4a9a880$@qsl.net> Message-ID: Near the OFS/B knob, at far right. Wayne N6KR > On Jun 19, 2020, at 10:21 PM, oz6abm at qsl.net wrote: > > Can anyone tell me where I find the 7 and 8 digit buttons on the KX3 front panel. I need to use them for config. entries and looking at the panel and in the guide they are nowhere to be seen ??? > > > > Thanks > > Robin > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From wa2lbi at gmail.com Sat Jun 20 03:05:32 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Sat, 20 Jun 2020 03:05:32 -0400 Subject: [Elecraft] Future of KPA500 & KAT500 In-Reply-To: <20200620034748.C7473149B1FF@mail.qsl.net> References: <20200620034748.C7473149B1FF@mail.qsl.net> Message-ID: Dave, Do you own either/both the KPA500 or KAT500 and are familiar with their operation? The KPA500 is not involved in the receive path, it is only used for transmitting, so it doesn't cause an issue on receive. When in standby the amp is bypassed and the T/R circuit feeds the input to the output. That output is connected to the KAT500 input. My antenna system, for various bands, is connected to the three outputs. Yes, if I just want to monitor a number of bands/frequencies I can press the KAT500 mode button repeatedly until the unit is in BYPass so that it won't attenuate receive signals. Unless the KAT500 is bypassed the last tuning solution will be applied regardless of band or frequency selected on the rig. Then, for each frequency I want to monitor, I can then press the ANT button on the KAT500 repeatedly until the correct antenna for the desired frequency is selected. Depending on the memory or VFO band/frequency selected it may be necessary to do this repeatedly. This will not work at all in the case of scanning. When done listening on various bands/frequencies and I want to return to transmitting I have to press the KAT500 mode button repeatedly until the unit is in MANual. Then press the ANT button on the KAT500 repeatedly until the correct antenna for the desired frequency is selected. All off this is doable but I'm looking for a more automatic system like that built-in to the Elecraft equipment. It appears that I need to design and build what I want. I've taken up more than enough forum time on this subject so it can be closed. Thanks to All, Ken WA2LBI On Fri, Jun 19, 2020 at 11:47 PM Dave wrote: > Ken, > > Can?t you simply press a couple of buttons on the KPA500 and the KAT500 to > listen on a different band? No RF required. No tune required. > > 73, > Dave N8AG > > From oz6abm at qsl.net Sat Jun 20 03:39:14 2020 From: oz6abm at qsl.net (oz6abm at qsl.net) Date: Sat, 20 Jun 2020 09:39:14 +0200 Subject: [Elecraft] KX3 buttons.... Message-ID: <000a01d646d5$e5e7cb40$b1b761c0$@qsl.net> Spoke with Wayne. He says I found a bug in the firmware and will be updated. Robin Subject: KX3 buttons.... Can anyone tell me where I find the 7 and 8 digit buttons on the KX3 front panel. I need to use them for config. entries and looking at the panel and in the guide they are nowhere to be seen ??? Thanks Robin From jim at audiosystemsgroup.com Sat Jun 20 03:49:38 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sat, 20 Jun 2020 00:49:38 -0700 Subject: [Elecraft] KX3 buttons.... In-Reply-To: <000a01d646d5$e5e7cb40$b1b761c0$@qsl.net> References: <000a01d646d5$e5e7cb40$b1b761c0$@qsl.net> Message-ID: <024f67c1-3a68-d707-93d7-c8dd73757ba0@audiosystemsgroup.com> On 6/20/2020 12:39 AM, oz6abm at qsl.net wrote: > Spoke with Wayne. He says I found a bug in the firmware and will be updated. Think of another company IN TH WORLD whose OWNER, or even Owner's Representative, will give 0.1% of THIS owner's response to a customer. 73, Jim K9YC From doc.lock at fast-mail.net Sat Jun 20 09:16:59 2020 From: doc.lock at fast-mail.net (Peter Lock) Date: Sat, 20 Jun 2020 06:16:59 -0700 (MST) Subject: [Elecraft] [K3] RTTY Setup In-Reply-To: References: Message-ID: <1592659019198-0.post@n2.nabble.com> Hi John, experienced this once or twice myself. There is a setting in N1MM+ to check. From the N1MM+ log entry window, select Config, Mode Control and in the combo box against "Mode RTTY" select "AFSK" for the appropriate Radio/VFO. That may also resolve your hung PTT; VOX should then work. Good luck Peter M0RYB I've recently changed from FSK to AFSK, and having issues. FWIW, I am using N1MM with 2Tone as my RTTY interface, with the K3 internal sound card. First, When I go to DATA MD, it is always set to FSK D. I reset it to AFSK A and it works; however, if I change bands, it resets itself to FSK D. The AFSK A setting does not "stick" - is there a way to make the K3 remember this setting? Second, the K3 is staying in Transmit after the RTTY message is finished. I usually have to press the XMIT button to return to receive. I do not have anything setup in the 2Tone PTT box, which I suspect is the problem. I tried to use the serial DTR, but 2Tone was unable to use the serial port that N1MM was using. I also tried VOX, but did not see a difference. Any suggestions for setting up AFSK PTT? Thanks, ? - 73, John, N0TA -- Sent from: http://elecraft.365791.n2.nabble.com/ From robkan at mail.dk Sat Jun 20 09:28:03 2020 From: robkan at mail.dk (robkan at mail.dk) Date: Sat, 20 Jun 2020 15:28:03 +0200 Subject: [Elecraft] PX3 displaying artifacts... Message-ID: <000201d64706$a02b0c80$e0812580$@mail.dk> I have tried this with two KX3?s with the same result. When connecting a PX3 to a KX3 and there is no antenna, the flat signal on the PX3 has some artifacts. The highest being where the KX3 unit is placed and then 2 to 3 on each side symmetrically of decreasing amplitude. This means that when you scroll the VFO for a signal it appears as if you are always on a signal! Usinbg the same PX3 on another KX3 I get the same. Unless KX3 rigs are sensitive to some local noise (compared with a K3 where there are no artifacts on a P3) then it may be the PX3 itself, but what is the adjustment to cancel this? Any clues or suggestions would be appreciated. 73 Robin From ve3nr at bell.net Sat Jun 20 10:13:33 2020 From: ve3nr at bell.net (Bert) Date: Sat, 20 Jun 2020 10:13:33 -0400 Subject: [Elecraft] KX3 buttons.... In-Reply-To: References: <000001d646c2$9c388d80$d4a9a880$@qsl.net> Message-ID: ?7, 8 and 9 are the three buttons, AF/RF, PBT and KEYER! Bert VE3NR On 2020-06-20 1:24, Wayne Burdick wrote: > Near the OFS/B knob, at far right. > > Wayne > N6KR > >> On Jun 19, 2020, at 10:21 PM, oz6abm at qsl.net wrote: >> >> Can anyone tell me where I find the 7 and 8 digit buttons on the KX3 front panel. I need to use them for config. entries and looking at the panel and in the guide they are nowhere to be seen ??? >> >> >> >> Thanks >> >> Robin >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6kr at elecraft.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ve3nr at bell.net From k3bh at arrl.net Sat Jun 20 10:28:39 2020 From: k3bh at arrl.net (Jay Rutherford) Date: Sat, 20 Jun 2020 10:28:39 -0400 Subject: [Elecraft] KX3 buttons.... In-Reply-To: References: <000001d646c2$9c388d80$d4a9a880$@qsl.net> Message-ID: <03d2b436-c352-4957-ba90-2b06854b9763@www.fastmail.com> Wayne was thinking about the KX2 instead of the KX3. 73 Jay K3BH On Sat, Jun 20, 2020, at 10:13, Bert wrote: > ?7, 8 and 9 are the three buttons, AF/RF, PBT and KEYER! > > Bert VE3NR > > > > On 2020-06-20 1:24, Wayne Burdick wrote: > > Near the OFS/B knob, at far right. > > > > Wayne > > N6KR > > > >> On Jun 19, 2020, at 10:21 PM, oz6abm at qsl.net wrote: > >> > >> Can anyone tell me where I find the 7 and 8 digit buttons on the KX3 front panel. I need to use them for config. entries and looking at the panel and in the guide they are nowhere to be seen ??? > >> > >> > >> > >> Thanks > >> > >> Robin > >> > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to n6kr at elecraft.com > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to ve3nr at bell.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k3bh at arrl.net From ardrhi at gmail.com Sat Jun 20 10:36:11 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Sat, 20 Jun 2020 10:36:11 -0400 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> Message-ID: I'm confused. Do you mean a personal CONTACT list, or a mailing list like the Elecraft reflector? If it's the former, I don't mind if you associate my address with, say, my call sign, so you can contact me if you need to. That's because you could look me up on QRZ and find my email address. It's no big deal. But if you mean a REFLECTOR, including me in mass mailings, then I'll have to say no, thank you. If you want to have a reflector of your own, I strongly suggest that you make it opt-in, not opt-OUT. I get hundreds of emails a day, and need to choose the reflectors I subscribe to very carefully. So if you just mean your contact list in your email program, I don't see any harm in it. But please don't jam-cram me into an email reflector. I would prefer being told about what it might offer, and make the informed choice to join it or not. I hope you will understand. 73, Gwen, NG3P From pvandyke1953 at gmail.com Sat Jun 20 10:45:09 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Sat, 20 Jun 2020 10:45:09 -0400 Subject: [Elecraft] KX3 buttons.... In-Reply-To: <024f67c1-3a68-d707-93d7-c8dd73757ba0@audiosystemsgroup.com> References: <000a01d646d5$e5e7cb40$b1b761c0$@qsl.net> <024f67c1-3a68-d707-93d7-c8dd73757ba0@audiosystemsgroup.com> Message-ID: Jim, you beat me. Most firms would just blow you off as you're just another consumer and all it means another radio outf the door,, they would not care. Both Wayne and Eric listen to small nuggets of information that we give them Even as some of it is just blah blah blah Paul. KB9AVO On Sat, Jun 20, 2020, 3:50 AM Jim Brown wrote: > On 6/20/2020 12:39 AM, oz6abm at qsl.net wrote: > > Spoke with Wayne. He says I found a bug in the firmware and will be > updated. > > Think of another company IN TH WORLD whose OWNER, or even Owner's > Representative, will give 0.1% of THIS owner's response to a customer. > > 73, Jim K9YC > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pvandyke1953 at gmail.com > From w0eb at cox.net Sat Jun 20 11:03:39 2020 From: w0eb at cox.net (Jim Sheldon) Date: Sat, 20 Jun 2020 15:03:39 +0000 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> Message-ID: Ken, Exactly as Gwen Patton said, CONTACT list fine as my email address is also on QRZ but if you are starting a reflector. Do NOT put my email address in automatically. IF I don't have the prerogative to OPT-OUT, I want no part of it. Jim, W0EB >I'm confused. Do you mean a personal CONTACT list, or a mailing list like >the Elecraft reflector? > >If it's the former, I don't mind if you associate my address with, say, my >call sign, so you can contact me if you need to. That's because you could >look me up on QRZ and find my email address. It's no big deal. > >But if you mean a REFLECTOR, including me in mass mailings, then I'll have >to say no, thank you. If you want to have a reflector of your own, I >strongly suggest that you make it opt-in, not opt-OUT. I get hundreds >of emails a day, and need to choose the reflectors I subscribe to very >carefully. > >So if you just mean your contact list in your email program, I don't see >any harm in it. But please don't jam-cram me into an email reflector. I >would prefer being told about what it might offer, and make the informed >choice to join it or not. I hope you will understand. > >73, >Gwen, NG3P >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to w0eb at cox.net From k5rhd.73 at gmail.com Sat Jun 20 11:15:44 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Sat, 20 Jun 2020 09:15:44 -0600 Subject: [Elecraft] K144XV Offset is not accurate. WAS: New K144XV module installed no power out.. In-Reply-To: References: Message-ID: Hi all, I took it all apart again. The TMP cable on the IN side of the KXV3A board was just slightly loose. I should have checked it a 4th time-HI HI Checked into the Beam-Spinners Weak signal net on 144.200 here in Denver. Net Control has a 9700 and my offset was off and had to tune to 144.199.5 to get everyone in clearly. So, I need to calibrate it-the manual says how to dial in using the factory spec but that number is obviously off. Is there a resource my Google-Fu has not be able to find? Thanks for the help and 73, everyone. K5RHD /randy > On Jun 19, 2020, at 12:05 AM, hdv wrote: > > Hi Randy > > It looks like the unit works ok, but cannot transfer power somewhere. > > Check the Ant3 coax for a short. > Check with an ohm meter if the TMP output connector makes connection from center BNC to center pin of TMP on pcb. > > If that is ok, check the voltages on the PIN diodes in rx and tx and the diodes themselves. > > 73 Henk > PA0C > > > > Verzonden vanaf mijn Samsung Galaxy-smartphone. > > > -------- Oorspronkelijk bericht -------- > Van: Randy Diddel > Datum: 19-06-2020 06:54 (GMT+01:00) > Aan: elecraft > Onderwerp: [Elecraft] New K144XV module installed no power out.. > > Hello, > > I just received my new K244XV in the mail today. I followed the instructions on how to install in my K3s (with a SN of 111xx). To a tee. I can adjust and see drive on the RF meter and it looks like I should be driving it to full power but through a W2 wattmeter into a dummy load, I have zero power out but it does draw about 3.5A when I press and hold the tune button for a very short time. I have triple checked all the TMP cables in and out of the KXV3A board and into the K144XV. I am getting power to the unit and two quick blinks of the LED of the XV when I power on the radio. > > I have checked my menu settings and those are to spec per the instructions. > > > > > It seems to be drawing current and everything I set right from what I can tell, what am I missing? > > TIA, > > 73 > > K5RHD > > /randy > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to hdv at kpnplanet.nl From donwilh at embarqmail.com Sat Jun 20 11:17:19 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 20 Jun 2020 11:17:19 -0400 Subject: [Elecraft] K6XX CW Indicator SMD Button LED Key installation In-Reply-To: <46A2D50C-EAA2-4B4F-B630-9E136CF7427C@me.com> References: <46A2D50C-EAA2-4B4F-B630-9E136CF7427C@me.com> Message-ID: Doug, I have built several of the LED IN A KEYCAP for both the K1 and K2. Unfortunately, I was never successful in soldering wires to the SMD LED that Ron (SK) supplied toward the end of his last run of the CW Tuning Indicator. The 3.3k SMD resistors may have been his solution after I told him about the difficulty soldering to the LED, but I simply don't know. I always used the HP HLMP series diodes for the Led In Keycap, they have leads. I don't know if DigiKey still has them, but I can spare a yellow one if you send me a SASE at my QRZ address. 73, Don W3FPR On 6/19/2020 9:57 PM, Douglas Hagerman via Elecraft wrote: > Can anyone explain how the SMD LED is to be mounted in the key cap for the K1 or K2 installation of the K6XX CW Indicator? I have an unbuilt kit (well, it is built now) and the key cap kit, but no instructions for how to install the LED. The key cap in the kit is drilled, and the LED appears to fit into the rectangular opening in the key cap so that the LED would shine out the hole. But then how do you connect to the LED? > > There are also two SMD 3.3k ohm resistors in the key cap kit. I can visualize putting the LED in the cap, and then soldering the two resistors onto the LED into a U-shape, and then wires onto the ends of the resistors, I guess. That would give a resistor value comparable to the 6.8k ohms mentioned in the main part of the kit. > > The main part of the kit also has a regular (large) LED that I could use with the ?looking out an existing hole? method, but the keycap idea seems attractive?IF I can figure out how to do it! > From donwilh at embarqmail.com Sat Jun 20 11:20:52 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 20 Jun 2020 11:20:52 -0400 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> Message-ID: <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> I am with Jim and Gwen. I have too many lists right now. 73, Don W3FPR On 6/20/2020 11:03 AM, Jim Sheldon wrote: > Ken, > Exactly as Gwen Patton said, CONTACT list fine as my email address is > also on QRZ but if you are starting a reflector.? Do NOT put my email > address in automatically.? IF I don't have the prerogative to OPT-OUT, I > want no part of it. > > Jim, W0EB > > >> I'm confused. Do you mean a personal CONTACT list, or a mailing list like >> the Elecraft reflector? >> >> If it's the former, I don't mind if you associate my address with, >> say, my >> call sign, so you can contact me if you need to. That's because you could >> look me up on QRZ and find my email address. It's no big deal. >> >> But if you mean a REFLECTOR, including me in mass mailings, then I'll >> have >> to say no, thank you. If you want to have a reflector of your own, I >> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds >> of emails a day, and need to choose the reflectors I subscribe to very >> carefully. >> From k4to.dave at gmail.com Sat Jun 20 11:32:50 2020 From: k4to.dave at gmail.com (Dave Sublette) Date: Sat, 20 Jun 2020 11:32:50 -0400 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> Message-ID: OPT OUT--- K4TO On Sat, Jun 20, 2020 at 11:21 AM Don Wilhelm wrote: > I am with Jim and Gwen. I have too many lists right now. > > 73, > Don W3FPR > > On 6/20/2020 11:03 AM, Jim Sheldon wrote: > > Ken, > > Exactly as Gwen Patton said, CONTACT list fine as my email address is > > also on QRZ but if you are starting a reflector. Do NOT put my email > > address in automatically. IF I don't have the prerogative to OPT-OUT, I > > want no part of it. > > > > Jim, W0EB > > > > > >> I'm confused. Do you mean a personal CONTACT list, or a mailing list > like > >> the Elecraft reflector? > >> > >> If it's the former, I don't mind if you associate my address with, > >> say, my > >> call sign, so you can contact me if you need to. That's because you > could > >> look me up on QRZ and find my email address. It's no big deal. > >> > >> But if you mean a REFLECTOR, including me in mass mailings, then I'll > >> have > >> to say no, thank you. If you want to have a reflector of your own, I > >> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds > >> of emails a day, and need to choose the reflectors I subscribe to very > >> carefully. > >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k4to at arrl.net From donanddeena at hotmail.com Sat Jun 20 11:45:39 2020 From: donanddeena at hotmail.com (Don Schroder) Date: Sat, 20 Jun 2020 15:45:39 +0000 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com>, Message-ID: OPT OUT ? KE0PVQ Sent from Mail for Windows 10 From: Dave Sublette Sent: Saturday, June 20, 2020 10:34 AM To: Elecraft Discussion List Subject: Re: [Elecraft] I'm building a personal email list.... OPT OUT--- K4TO On Sat, Jun 20, 2020 at 11:21 AM Don Wilhelm wrote: > I am with Jim and Gwen. I have too many lists right now. > > 73, > Don W3FPR > > On 6/20/2020 11:03 AM, Jim Sheldon wrote: > > Ken, > > Exactly as Gwen Patton said, CONTACT list fine as my email address is > > also on QRZ but if you are starting a reflector. Do NOT put my email > > address in automatically. IF I don't have the prerogative to OPT-OUT, I > > want no part of it. > > > > Jim, W0EB > > > > > >> I'm confused. Do you mean a personal CONTACT list, or a mailing list > like > >> the Elecraft reflector? > >> > >> If it's the former, I don't mind if you associate my address with, > >> say, my > >> call sign, so you can contact me if you need to. That's because you > could > >> look me up on QRZ and find my email address. It's no big deal. > >> > >> But if you mean a REFLECTOR, including me in mass mailings, then I'll > >> have > >> to say no, thank you. If you want to have a reflector of your own, I > >> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds > >> of emails a day, and need to choose the reflectors I subscribe to very > >> carefully. > >> > ______________________________________________________________ > Elecraft mailing list > Home: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919715828&sdata=DrbhxBjNKENAwUJdiBSwYmXmPYcvTjr40a%2FhMFcAWHs%3D&reserved=0 > Help: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=j3d180YaaTWTL83g%2BY0RaEJFSOf1aYMyUgVSnvgS5Ao%3D&reserved=0 > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=CBXyjcfvh5yDws8SIJ0FvL1oOKsctREJk%2BjrlAJczNI%3D&reserved=0 > Please help support this email list: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=FhAXO1GeGRa%2FGJQ7zfDo%2BAWUL0MW%2B6IdAzbph3i6p1g%3D&reserved=0 > Message delivered to k4to at arrl.net ______________________________________________________________ Elecraft mailing list Home: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=duKW2faqXpxFdFw5NRfOUqgwadAN%2FLtm3ryEybKWM00%3D&reserved=0 Help: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=j3d180YaaTWTL83g%2BY0RaEJFSOf1aYMyUgVSnvgS5Ao%3D&reserved=0 Post: mailto:Elecraft at mailman.qth.net This list hosted by: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=CBXyjcfvh5yDws8SIJ0FvL1oOKsctREJk%2BjrlAJczNI%3D&reserved=0 Please help support this email list: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=FhAXO1GeGRa%2FGJQ7zfDo%2BAWUL0MW%2B6IdAzbph3i6p1g%3D&reserved=0 Message delivered to donanddeena at hotmail.com From w2kj at bellsouth.net Sat Jun 20 11:53:17 2020 From: w2kj at bellsouth.net (Joseph Trombino, Jr) Date: Sat, 20 Jun 2020 11:53:17 -0400 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> Message-ID: OPT OUT?W2KJ > On Jun 20, 2020, at 11:32 AM, Dave Sublette wrote: > > OPT OUT--- K4TO > > On Sat, Jun 20, 2020 at 11:21 AM Don Wilhelm wrote: > >> I am with Jim and Gwen. I have too many lists right now. >> >> 73, >> Don W3FPR >> >> On 6/20/2020 11:03 AM, Jim Sheldon wrote: >>> Ken, >>> Exactly as Gwen Patton said, CONTACT list fine as my email address is >>> also on QRZ but if you are starting a reflector. Do NOT put my email >>> address in automatically. IF I don't have the prerogative to OPT-OUT, I >>> want no part of it. >>> >>> Jim, W0EB >>> >>> >>>> I'm confused. Do you mean a personal CONTACT list, or a mailing list >> like >>>> the Elecraft reflector? >>>> >>>> If it's the former, I don't mind if you associate my address with, >>>> say, my >>>> call sign, so you can contact me if you need to. That's because you >> could >>>> look me up on QRZ and find my email address. It's no big deal. >>>> >>>> But if you mean a REFLECTOR, including me in mass mailings, then I'll >>>> have >>>> to say no, thank you. If you want to have a reflector of your own, I >>>> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds >>>> of emails a day, and need to choose the reflectors I subscribe to very >>>> carefully. >>>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k4to at arrl.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w2kj at bellsouth.net From david.n5dch at gmail.com Sat Jun 20 11:53:05 2020 From: david.n5dch at gmail.com (David Herring) Date: Sat, 20 Jun 2020 09:53:05 -0600 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> Message-ID: Maybe I could make a friendly suggestion that anyone who wants to, opt out of Ken?s email list directly to Ken and not necessarily to the entire Elecraft Reflector. ;-) 73, David - N5DCH > On Jun 20, 2020, at 9:45 AM, Don Schroder wrote: > > OPT OUT ? KE0PVQ > > Sent from Mail> for Windows 10 > > From: Dave Sublette> > Sent: Saturday, June 20, 2020 10:34 AM > To: Elecraft Discussion List> > Subject: Re: [Elecraft] I'm building a personal email list.... > > OPT OUT--- K4TO > > On Sat, Jun 20, 2020 at 11:21 AM Don Wilhelm wrote: > >> I am with Jim and Gwen. I have too many lists right now. >> >> 73, >> Don W3FPR >> >> On 6/20/2020 11:03 AM, Jim Sheldon wrote: >>> Ken, >>> Exactly as Gwen Patton said, CONTACT list fine as my email address is >>> also on QRZ but if you are starting a reflector. Do NOT put my email >>> address in automatically. IF I don't have the prerogative to OPT-OUT, I >>> want no part of it. >>> >>> Jim, W0EB >>> >>> >>>> I'm confused. Do you mean a personal CONTACT list, or a mailing list >> like >>>> the Elecraft reflector? >>>> >>>> If it's the former, I don't mind if you associate my address with, >>>> say, my >>>> call sign, so you can contact me if you need to. That's because you >> could >>>> look me up on QRZ and find my email address. It's no big deal. >>>> >>>> But if you mean a REFLECTOR, including me in mass mailings, then I'll >>>> have >>>> to say no, thank you. If you want to have a reflector of your own, I >>>> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds >>>> of emails a day, and need to choose the reflectors I subscribe to very >>>> carefully. >>>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919715828&sdata=DrbhxBjNKENAwUJdiBSwYmXmPYcvTjr40a%2FhMFcAWHs%3D&reserved=0 >> Help: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=j3d180YaaTWTL83g%2BY0RaEJFSOf1aYMyUgVSnvgS5Ao%3D&reserved=0 >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=CBXyjcfvh5yDws8SIJ0FvL1oOKsctREJk%2BjrlAJczNI%3D&reserved=0 >> Please help support this email list: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=FhAXO1GeGRa%2FGJQ7zfDo%2BAWUL0MW%2B6IdAzbph3i6p1g%3D&reserved=0 >> Message delivered to k4to at arrl.net > ______________________________________________________________ > Elecraft mailing list > Home: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=duKW2faqXpxFdFw5NRfOUqgwadAN%2FLtm3ryEybKWM00%3D&reserved=0 > Help: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=j3d180YaaTWTL83g%2BY0RaEJFSOf1aYMyUgVSnvgS5Ao%3D&reserved=0 > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=CBXyjcfvh5yDws8SIJ0FvL1oOKsctREJk%2BjrlAJczNI%3D&reserved=0 > Please help support this email list: https://nam01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C90fde9db9b5f40d01aa408d8152f7934%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637282640919725821&sdata=FhAXO1GeGRa%2FGJQ7zfDo%2BAWUL0MW%2B6IdAzbph3i6p1g%3D&reserved=0 > Message delivered to donanddeena at hotmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to david.n5dch at gmail.com From kr7x at comcast.net Sat Jun 20 11:54:11 2020 From: kr7x at comcast.net (kr7x at comcast.net) Date: Sat, 20 Jun 2020 08:54:11 -0700 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> Message-ID: <008e01d6471b$0b025680$21070380$@comcast.net> I am in the same boat as Don. Hank / KR7X -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Don Wilhelm Sent: Saturday, June 20, 2020 8:21 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] I'm building a personal email list.... I am with Jim and Gwen. I have too many lists right now. 73, Don W3FPR On 6/20/2020 11:03 AM, Jim Sheldon wrote: > Ken, > Exactly as Gwen Patton said, CONTACT list fine as my email address is > also on QRZ but if you are starting a reflector. Do NOT put my email > address in automatically. IF I don't have the prerogative to OPT-OUT, > I want no part of it. > > Jim, W0EB > > >> I'm confused. Do you mean a personal CONTACT list, or a mailing list >> like the Elecraft reflector? >> >> If it's the former, I don't mind if you associate my address with, >> say, my call sign, so you can contact me if you need to. That's >> because you could look me up on QRZ and find my email address. It's >> no big deal. >> >> But if you mean a REFLECTOR, including me in mass mailings, then I'll >> have to say no, thank you. If you want to have a reflector of your >> own, I strongly suggest that you make it opt-in, not opt-OUT. I get >> hundreds of emails a day, and need to choose the reflectors I >> subscribe to very carefully. >> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to kr7x at comcast.net From oz6abm at qsl.net Sat Jun 20 12:00:28 2020 From: oz6abm at qsl.net (oz6abm at qsl.net) Date: Sat, 20 Jun 2020 18:00:28 +0200 Subject: [Elecraft] Segments in KX3 display Message-ID: <001701d6471b$eb3b7600$c1b26200$@qsl.net> Hi, I have a KX3 and when applying power (turning it on) some segments in the display light up before the entire display becomes active. They are there for about 1 second, but on another KX3 I have there is no such issue? Rgrds Robin From joeolsen1946 at gmail.com Sat Jun 20 12:02:32 2020 From: joeolsen1946 at gmail.com (Joe Olsen) Date: Sat, 20 Jun 2020 09:02:32 -0700 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <008e01d6471b$0b025680$21070380$@comcast.net> References: <008e01d6471b$0b025680$21070380$@comcast.net> Message-ID: <42432DF9-3017-4288-8FCA-4C861B666355@gmail.com> I think Elecraft should remove this thread. Not an Elecraft topic. AA0BV > On Jun 20, 2020, at 8:58 AM, kr7x at comcast.net wrote: > > ?I am in the same boat as Don. > > Hank / KR7X > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Don Wilhelm > Sent: Saturday, June 20, 2020 8:21 AM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] I'm building a personal email list.... > > I am with Jim and Gwen. I have too many lists right now. > > 73, > Don W3FPR > >> On 6/20/2020 11:03 AM, Jim Sheldon wrote: >> Ken, >> Exactly as Gwen Patton said, CONTACT list fine as my email address is >> also on QRZ but if you are starting a reflector. Do NOT put my email >> address in automatically. IF I don't have the prerogative to OPT-OUT, >> I want no part of it. >> >> Jim, W0EB >> >> >>> I'm confused. Do you mean a personal CONTACT list, or a mailing list >>> like the Elecraft reflector? >>> >>> If it's the former, I don't mind if you associate my address with, >>> say, my call sign, so you can contact me if you need to. That's >>> because you could look me up on QRZ and find my email address. It's >>> no big deal. >>> >>> But if you mean a REFLECTOR, including me in mass mailings, then I'll >>> have to say no, thank you. If you want to have a reflector of your >>> own, I strongly suggest that you make it opt-in, not opt-OUT. I get >>> hundreds of emails a day, and need to choose the reflectors I >>> subscribe to very carefully. >>> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to kr7x at comcast.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to joeolsen1946 at gmail.com From w5sum at comcast.net Sat Jun 20 12:16:40 2020 From: w5sum at comcast.net (Ronnie Hull) Date: Sat, 20 Jun 2020 11:16:40 -0500 Subject: [Elecraft] Kxv144 Message-ID: <878B9C53-68E7-47F5-81A5-A5DCAB2D70BE@comcast.net> Anyone have a 2M module for thier K3/S they will part with? My cash is green! Ronnie W5SUM Sent from my iPhone From ve7day at telus.net Sat Jun 20 12:18:23 2020 From: ve7day at telus.net (John) Date: Sat, 20 Jun 2020 09:18:23 -0700 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> Message-ID: I ask just what is this list to be used for? On 20/06/2020 8:32 a.m., Dave Sublette wrote: > OPT OUT--- K4TO > > On Sat, Jun 20, 2020 at 11:21 AM Don Wilhelm wrote: > >> I am with Jim and Gwen. I have too many lists right now. >> >> 73, >> Don W3FPR >> >> On 6/20/2020 11:03 AM, Jim Sheldon wrote: >>> Ken, >>> Exactly as Gwen Patton said, CONTACT list fine as my email address is >>> also on QRZ but if you are starting a reflector. Do NOT put my email >>> address in automatically. IF I don't have the prerogative to OPT-OUT, I >>> want no part of it. >>> >>> Jim, W0EB >>> >>> >>>> I'm confused. Do you mean a personal CONTACT list, or a mailing list >> like >>>> the Elecraft reflector? >>>> >>>> If it's the former, I don't mind if you associate my address with, >>>> say, my >>>> call sign, so you can contact me if you need to. That's because you >> could >>>> look me up on QRZ and find my email address. It's no big deal. >>>> >>>> But if you mean a REFLECTOR, including me in mass mailings, then I'll >>>> have >>>> to say no, thank you. If you want to have a reflector of your own, I >>>> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds >>>> of emails a day, and need to choose the reflectors I subscribe to very >>>> carefully. >>>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k4to at arrl.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ve7day at telus.net From jstengrevics at comcast.net Sat Jun 20 12:20:27 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Sat, 20 Jun 2020 12:20:27 -0400 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> Message-ID: <89535D86-5686-4AB3-8576-AE563DFEF77F@comcast.net> Opt Out > On Jun 20, 2020, at 11:03 AM, Jim Sheldon wrote: > > Ken, > Exactly as Gwen Patton said, CONTACT list fine as my email address is also on QRZ but if you are starting a reflector. Do NOT put my email address in automatically. IF I don't have the prerogative to OPT-OUT, I want no part of it. > > Jim, W0EB > > >> I'm confused. Do you mean a personal CONTACT list, or a mailing list like >> the Elecraft reflector? >> >> If it's the former, I don't mind if you associate my address with, say, my >> call sign, so you can contact me if you need to. That's because you could >> look me up on QRZ and find my email address. It's no big deal. >> >> But if you mean a REFLECTOR, including me in mass mailings, then I'll have >> to say no, thank you. If you want to have a reflector of your own, I >> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds >> of emails a day, and need to choose the reflectors I subscribe to very >> carefully. >> >> So if you just mean your contact list in your email program, I don't see >> any harm in it. But please don't jam-cram me into an email reflector. I >> would prefer being told about what it might offer, and make the informed >> choice to join it or not. I hope you will understand. >> >> 73, >> Gwen, NG3P >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to w0eb at cox.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jstengrevics at comcast.net From n6kr at elecraft.com Sat Jun 20 12:32:29 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sat, 20 Jun 2020 09:32:29 -0700 Subject: [Elecraft] Segments in KX3 display In-Reply-To: <001701d6471b$eb3b7600$c1b26200$@qsl.net> References: <001701d6471b$eb3b7600$c1b26200$@qsl.net> Message-ID: <370E5292-DAA2-4108-9D46-AA1DC64AA084@elecraft.com> Robin, The LCD controller's internal segment memory is scrambled at power-on. Most of them reset quickly to all segments cleared, but a certain percentage still remain scrambled until the firmware has completed the power-up process. This has no effect on operation and is not an indication of a problem. 73, Wayne N6KR > On Jun 20, 2020, at 9:00 AM, oz6abm at qsl.net wrote: > > Hi, > > > > I have a KX3 and when applying power (turning it on) some segments in the display light up before the entire display becomes active. They are there for about 1 second, but on another KX3 I have there is no such issue? > > > > Rgrds > > Robin > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From dl2mdu at darc.de Sat Jun 20 13:05:44 2020 From: dl2mdu at darc.de (Christian Friess) Date: Sat, 20 Jun 2020 19:05:44 +0200 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <42432DF9-3017-4288-8FCA-4C861B666355@gmail.com> References: <008e01d6471b$0b025680$21070380$@comcast.net> <42432DF9-3017-4288-8FCA-4C861B666355@gmail.com> Message-ID: I wish that too. It looks like someone was bored to death and started a thread. After a while it was nothing else but waste of bandwidth. Chris, DL2MDU Am 20.06.2020 um 18:02 schrieb Joe Olsen: > I think Elecraft should remove this thread. Not an Elecraft topic. > > > AA0BV > >> On Jun 20, 2020, at 8:58 AM, kr7x at comcast.net wrote: >> >> ?I am in the same boat as Don. >> >> Hank / KR7X >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On Behalf Of Don Wilhelm >> Sent: Saturday, June 20, 2020 8:21 AM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] I'm building a personal email list.... >> >> I am with Jim and Gwen. I have too many lists right now. >> >> 73, >> Don W3FPR >> >>> On 6/20/2020 11:03 AM, Jim Sheldon wrote: >>> Ken, >>> Exactly as Gwen Patton said, CONTACT list fine as my email address is >>> also on QRZ but if you are starting a reflector. Do NOT put my email >>> address in automatically. IF I don't have the prerogative to OPT-OUT, >>> I want no part of it. >>> >>> Jim, W0EB >>> >>> >>>> I'm confused. Do you mean a personal CONTACT list, or a mailing list >>>> like the Elecraft reflector? >>>> >>>> If it's the former, I don't mind if you associate my address with, >>>> say, my call sign, so you can contact me if you need to. That's >>>> because you could look me up on QRZ and find my email address. It's >>>> no big deal. >>>> >>>> But if you mean a REFLECTOR, including me in mass mailings, then I'll >>>> have to say no, thank you. If you want to have a reflector of your >>>> own, I strongly suggest that you make it opt-in, not opt-OUT. I get >>>> hundreds of emails a day, and need to choose the reflectors I >>>> subscribe to very carefully. >>>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html Message delivered to kr7x at comcast.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to joeolsen1946 at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dl2mdu at darc.de From g4gnx at g4gnx.com Sat Jun 20 13:07:31 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Sat, 20 Jun 2020 17:07:31 +0000 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <008e01d6471b$0b025680$21070380$@comcast.net> <42432DF9-3017-4288-8FCA-4C861B666355@gmail.com> Message-ID: and very little to do with Elecraft. Please remove it. 73, Alan. G4GNX ------ Original Message ------ From: "Christian Friess" To: elecraft at mailman.qth.net Sent: 20/06/2020 18:05:44 Subject: Re: [Elecraft] I'm building a personal email list.... >I wish that too. > >It looks like someone was bored to death and started a thread. >After a while it was nothing else but waste of bandwidth. > >Chris, DL2MDU > >Am 20.06.2020 um 18:02 schrieb Joe Olsen: >>I think Elecraft should remove this thread. Not an Elecraft topic. >> >> >>AA0BV >> >>>On Jun 20, 2020, at 8:58 AM, kr7x at comcast.net wrote: >>> >>>?I am in the same boat as Don. >>> >>>Hank / KR7X >>> >>>-----Original Message----- >>>From: elecraft-bounces at mailman.qth.net On Behalf Of Don Wilhelm >>>Sent: Saturday, June 20, 2020 8:21 AM >>>To: elecraft at mailman.qth.net >>>Subject: Re: [Elecraft] I'm building a personal email list.... >>> >>>I am with Jim and Gwen. I have too many lists right now. >>> >>>73, >>>Don W3FPR >>> >>>>On 6/20/2020 11:03 AM, Jim Sheldon wrote: >>>>Ken, >>>>Exactly as Gwen Patton said, CONTACT list fine as my email address is >>>>also on QRZ but if you are starting a reflector. Do NOT put my email >>>>address in automatically. IF I don't have the prerogative to OPT-OUT, >>>>I want no part of it. >>>> >>>>Jim, W0EB >>>> >>>> >>>>>I'm confused. Do you mean a personal CONTACT list, or a mailing list >>>>>like the Elecraft reflector? >>>>> >>>>>If it's the former, I don't mind if you associate my address with, >>>>>say, my call sign, so you can contact me if you need to. That's >>>>>because you could look me up on QRZ and find my email address. It's >>>>>no big deal. >>>>> >>>>>But if you mean a REFLECTOR, including me in mass mailings, then I'll >>>>>have to say no, thank you. If you want to have a reflector of your >>>>>own, I strongly suggest that you make it opt-in, not opt-OUT. I get >>>>>hundreds of emails a day, and need to choose the reflectors I >>>>>subscribe to very carefully. >>>>> >>>______________________________________________________________ >>>Elecraft mailing list >>>Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>Help: http://mailman.qth.net/mmfaq.htm >>>Post: mailto:Elecraft at mailman.qth.net >>> >>>This list hosted by: http://www.qsl.net >>>Please help support this email list: http://www.qsl.net/donate.html Message delivered to kr7x at comcast.net >>> >>>______________________________________________________________ >>>Elecraft mailing list >>>Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>Help: http://mailman.qth.net/mmfaq.htm >>>Post: mailto:Elecraft at mailman.qth.net >>> >>>This list hosted by: http://www.qsl.net >>>Please help support this email list: http://www.qsl.net/donate.html >>>Message delivered to joeolsen1946 at gmail.com >>______________________________________________________________ >>Elecraft mailing list >>Home: http://mailman.qth.net/mailman/listinfo/elecraft >>Help: http://mailman.qth.net/mmfaq.htm >>Post: mailto:Elecraft at mailman.qth.net >> >>This list hosted by: http://www.qsl.net >>Please help support this email list: http://www.qsl.net/donate.html >>Message delivered to dl2mdu at darc.de >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to g4gnx at g4gnx.com From ve3nr at bell.net Sat Jun 20 13:09:20 2020 From: ve3nr at bell.net (Bert) Date: Sat, 20 Jun 2020 13:09:20 -0400 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <008e01d6471b$0b025680$21070380$@comcast.net> <42432DF9-3017-4288-8FCA-4C861B666355@gmail.com> Message-ID: <0689d64e-e671-b892-9fc6-8858565bc020@bell.net> Back to regular programming! Bert VE3NR On 2020-06-20 13:07, Alan - G4GNX wrote: > and very little to do with Elecraft. Please remove it. > > 73, > > Alan. G4GNX > > > ------ Original Message ------ > From: "Christian Friess" > To: elecraft at mailman.qth.net > Sent: 20/06/2020 18:05:44 > Subject: Re: [Elecraft] I'm building a personal email list.... > >> I wish that too. >> >> It looks like someone was bored to death and started a thread. >> After a while it was nothing else but waste of bandwidth. >> >> Chris, DL2MDU >> >> Am 20.06.2020 um 18:02 schrieb Joe Olsen: >>> I think Elecraft should remove this thread. Not an Elecraft topic. >>> >>> >>> AA0BV >>> >>>> On Jun 20, 2020, at 8:58 AM, kr7x at comcast.net wrote: >>>> >>>> ?I am in the same boat as Don. >>>> >>>> Hank / KR7X >>>> >>>> -----Original Message----- >>>> From: elecraft-bounces at mailman.qth.net >>>> On Behalf Of Don Wilhelm >>>> Sent: Saturday, June 20, 2020 8:21 AM >>>> To: elecraft at mailman.qth.net >>>> Subject: Re: [Elecraft] I'm building a personal email list.... >>>> >>>> I am with Jim and Gwen.? I have too many lists right now. >>>> >>>> 73, >>>> Don W3FPR >>>> >>>>> On 6/20/2020 11:03 AM, Jim Sheldon wrote: >>>>> Ken, >>>>> Exactly as Gwen Patton said, CONTACT list fine as my email address is >>>>> also on QRZ but if you are starting a reflector.? Do NOT put my email >>>>> address in automatically.? IF I don't have the prerogative to >>>>> OPT-OUT, >>>>> I want no part of it. >>>>> >>>>> Jim, W0EB >>>>> >>>>> >>>>>> I'm confused. Do you mean a personal CONTACT list, or a mailing list >>>>>> like the Elecraft reflector? >>>>>> >>>>>> If it's the former, I don't mind if you associate my address with, >>>>>> say, my call sign, so you can contact me if you need to. That's >>>>>> because you could look me up on QRZ and find my email address. It's >>>>>> no big deal. >>>>>> >>>>>> But if you mean a REFLECTOR, including me in mass mailings, then >>>>>> I'll >>>>>> have to say no, thank you. If you want to have a reflector of your >>>>>> own, I strongly suggest that you make it opt-in, not opt-OUT. I get >>>>>> hundreds of emails a day, and need to choose the reflectors I >>>>>> subscribe to very carefully. >>>>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to kr7x at comcast.net >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to joeolsen1946 at gmail.com >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to dl2mdu at darc.de >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to g4gnx at g4gnx.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ve3nr at bell.net From w7aqk1 at gmail.com Sat Jun 20 13:25:54 2020 From: w7aqk1 at gmail.com (w7aqk1 at gmail.com) Date: Sat, 20 Jun 2020 10:25:54 -0700 Subject: [Elecraft] Elecraft] I'm building a personal email list Message-ID: <027b01d64727$da4797f0$8ed6c7d0$@gmail.com> C'mon Ken! Why would you post something like this without explaining the purpose? Based on the responses so far I'm not the only one confused by what you intention is. Seems to me you should have responded by now when you saw the confusion you were causing. For my part, I'm inclined to say "leave me out" please. Dave W7AQK ----------------------------------------------------------------------- Date: Fri, 19 Jun 2020 14:05:41 -0600 From: Ken G Kopp > To: undisclosed-recipients:; Subject: [Elecraft] I'm building a personal email list.... Message-ID: > Content-Type: text/plain; charset="UTF-8" If you -don't- want to be included -do- say so. I won't be offended. Regards, Ken Kopp - K0PP From ai4ns.mike at gmail.com Sat Jun 20 13:28:03 2020 From: ai4ns.mike at gmail.com (Mike Short) Date: Sat, 20 Jun 2020 12:28:03 -0500 Subject: [Elecraft] Segments in KX3 display In-Reply-To: <370E5292-DAA2-4108-9D46-AA1DC64AA084@elecraft.com> References: <001701d6471b$eb3b7600$c1b26200$@qsl.net> <370E5292-DAA2-4108-9D46-AA1DC64AA084@elecraft.com> Message-ID: I thought they were more excited to do radio. On Sat, Jun 20, 2020 at 11:34 Wayne Burdick wrote: > Robin, > > The LCD controller's internal segment memory is scrambled at power-on. > Most of them reset quickly to all segments cleared, but a certain > percentage still remain scrambled until the firmware has completed the > power-up process. > > This has no effect on operation and is not an indication of a problem. > > 73, > Wayne > N6KR > > > > > On Jun 20, 2020, at 9:00 AM, oz6abm at qsl.net wrote: > > > > Hi, > > > > > > > > I have a KX3 and when applying power (turning it on) some segments in > the display light up before the entire display becomes active. They are > there for about 1 second, but on another KX3 I have there is no such issue? > > > > > > > > Rgrds > > > > Robin > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to n6kr at elecraft.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ai4ns.mike at gmail.com > From erusst at yahoo.com Sat Jun 20 13:30:41 2020 From: erusst at yahoo.com (Russ Tobolic) Date: Sat, 20 Jun 2020 17:30:41 +0000 (UTC) Subject: [Elecraft] Current Draw on 20M In-Reply-To: <248906677.602578.1592589259116@mail.yahoo.com> References: <11c402b2-fd08-1366-1828-66cc35145f78@windstream.net> <248906677.602578.1592589259116@mail.yahoo.com> Message-ID: <1961435407.857671.1592674241388@mail.yahoo.com> After reading your numbers here I was curious since my K3 is the same vintage as yours, serial 732, Apr'08.? I did a quick check on 20M and I am reading 15.5A, @13.5V (on my Astron 20M meters) at 100W into a 50 ohm dummy load.? I checked other bands and read the following: 160M-15.5A, 75M-14A, 40M-14A, 15M-13.6A, 10M-13A.? All readings were in the tune position using a LP-100.? I don't think the higher reading on 20 (or 160) is really significant. Russ, N3CO Sent from Yahoo Mail on Android On Fri, Jun 19, 2020 at 1:55 PM, Mike Maloney wrote: FWIW, my old K3 (Nov'08) only pulls 17.8Adc at 12.5V for 100W into 50ohm dummy load at 14MHz.?? Seems to follow your PA temp is gonna run hotter also.? WHY such poor efficiency Elecraft, (Wayne) ? 73,Mike, AC5P ? ? On Friday, June 19, 2020, 12:03:45 PM CDT, Randy Farmer wrote:? Mine does exactly the same thing. I even ran it through factory service to be sure there wasn't a problem with the LPF module that might be causing trouble. They calibrated it and returned it with a clean bill of health. It still draws significantly more current on 20 than on any other band. 73... Randy, W8FN On 6/19/2020 8:46 AM, Rich wrote: > I just received my K3S back from repair and all seemed OK. However it > appears to draw much more current on 20M than any other band.?? 22 - > 24 amps.? I have tried two different 20m antennas and a dummy load. > > All other bands are 20 amps or lower.? Some as low at 17amps. > > Power Supply voltage per K3s display 14.0v standby and 13.3 on TX > > First off is this actually something of concern? > > I hate to do a calibration as it was just done by Elecraft service two > weeks ago. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ac5p at sbcglobal.net? ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to erusst at yahoo.com From n6kr at elecraft.com Sat Jun 20 13:43:09 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sat, 20 Jun 2020 10:43:09 -0700 Subject: [Elecraft] Elecraft] I'm building a personal email list In-Reply-To: <027b01d64727$da4797f0$8ed6c7d0$@gmail.com> References: <027b01d64727$da4797f0$8ed6c7d0$@gmail.com> Message-ID: Ken responded to us asking that the thread be ended. His intentions were good, but misinterpreted. He was trying to gather input for a separate (personal) email list. We've all experienced unintended consequences before. Let's move on. 73, Wayne N6KR From johnk2jhu at gmail.com Sat Jun 20 13:45:56 2020 From: johnk2jhu at gmail.com (John Dorson) Date: Sat, 20 Jun 2020 13:45:56 -0400 Subject: [Elecraft] Computer control software Message-ID: Is anyone using computer control programs for the K2 that they have downloaded. I have the cabling to connect the K2 to my computer. Have a great weekend all. John K2JHU... From w8fn at windstream.net Sat Jun 20 13:55:53 2020 From: w8fn at windstream.net (Randy Farmer) Date: Sat, 20 Jun 2020 13:55:53 -0400 Subject: [Elecraft] Current Draw on 20M In-Reply-To: <1961435407.857671.1592674241388@mail.yahoo.com> References: <11c402b2-fd08-1366-1828-66cc35145f78@windstream.net> <248906677.602578.1592589259116@mail.yahoo.com> <1961435407.857671.1592674241388@mail.yahoo.com> Message-ID: <54f5b7dc-8313-d449-5ed5-147d44f4d05f@windstream.net> I'm beginning to believe we're up against a harmless component tolerance stack-up that's peculiar to the K3S lineup design for 20 meters. For what it's worth, I've done many hours of pretty hard CW contest operation with my K3S and it hasn't shown the slightest problem operationally. What originally caused me to notice the 20 meter current draw phenomenon was that my radio seemed to be shutting down once the supply current hit about 23A, despite being supplied from an Astron RS-35 that measured around 12.8V at the radio with key down on 20. I had attributed the shutdown to the radio, but after it went for the factory checkout and still produced the same behavior, I swapped the power supply for its supposedly identical twin that was used for the K3 on the second station. No more shutdown, so I'm chalking it up to a premature overcurrent shutdown in the original power supply. Despite the fact that the radio draws significantly more current on 20 than on other bands, it's given no indication of any problem since. 73... Randy, W8FN On 6/20/2020 1:30 PM, Russ Tobolic wrote: > After reading your numbers here I was curious since my K3 is the same > vintage as yours, serial 732, Apr'08.? I did a quick check on 20M and > I am reading 15.5A, @13.5V (on my Astron 20M meters) at 100W into a 50 > ohm dummy load.? I checked other bands and read the following: > 160M-15.5A, 75M-14A, 40M-14A, 15M-13.6A, 10M-13A.? All readings were > in the tune position using a LP-100.? I don't think the higher reading > on 20 (or 160) is really significant. > > Russ, N3CO > > On Fri, Jun 19, 2020 at 1:55 PM, Mike Maloney > wrote: > FWIW, my old K3 (Nov'08) only pulls 17.8Adc at 12.5V for 100W into > 50ohm dummy load at 14MHz. > Seems to follow your PA temp is gonna run hotter also.? WHY such > poor efficiency Elecraft, (Wayne) ? > 73,Mike, AC5P > From k2asp at kanafi.org Sat Jun 20 14:15:52 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 20 Jun 2020 11:15:52 -0700 Subject: [Elecraft] Computer control software In-Reply-To: References: Message-ID: <61c2c955-2f9b-9c7a-ade4-9264648f49be@kanafi.org> On 6/20/2020 10:45 AM, John Dorson wrote: > Is anyone using computer control programs for the K2 that they have > downloaded. I have the cabling to connect the K2 to my computer. I too would be interested. I have a serial port and a USB port that are still unused on my computer. > Have a great weekend all. And to you all as well. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From tommy58 at hvc.rr.com Sat Jun 20 14:25:17 2020 From: tommy58 at hvc.rr.com (Tommy) Date: Sat, 20 Jun 2020 14:25:17 -0400 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> Message-ID: <573e2b90-56b5-2c47-6e4d-2057a3235996@hvc.rr.com> Opt out for me too please. Tom On 6/20/20 11:45 AM, Don Schroder wrote: > OPT OUT ? KE0PVQ > > Sent from Mail for Windows 10 > > From: Dave Sublette > Sent: Saturday, June 20, 2020 10:34 AM > To: Elecraft Discussion List > Subject: Re: [Elecraft] I'm building a personal email list.... > > OPT OUT--- K4TO > From hlyingst at yahoo.com Sat Jun 20 14:27:20 2020 From: hlyingst at yahoo.com (Harry Yingst) Date: Sat, 20 Jun 2020 18:27:20 +0000 (UTC) Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <008e01d6471b$0b025680$21070380$@comcast.net> References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> <008e01d6471b$0b025680$21070380$@comcast.net> Message-ID: <1680789010.1224571.1592677640853@mail.yahoo.com> Same here On Saturday, June 20, 2020, 12:00:04 PM EDT, wrote: I am in the same boat as Don. Hank / KR7X -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Don Wilhelm Sent: Saturday, June 20, 2020 8:21 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] I'm building a personal email list.... I am with Jim and Gwen.? I have too many lists right now. 73, Don W3FPR On 6/20/2020 11:03 AM, Jim Sheldon wrote: > Ken, > Exactly as Gwen Patton said, CONTACT list fine as my email address is > also on QRZ but if you are starting a reflector.? Do NOT put my email > address in automatically.? IF I don't have the prerogative to OPT-OUT, > I want no part of it. > > Jim, W0EB > > >> I'm confused. Do you mean a personal CONTACT list, or a mailing list >> like the Elecraft reflector? >> >> If it's the former, I don't mind if you associate my address with, >> say, my call sign, so you can contact me if you need to. That's >> because you could look me up on QRZ and find my email address. It's >> no big deal. >> >> But if you mean a REFLECTOR, including me in mass mailings, then I'll >> have to say no, thank you. If you want to have a reflector of your >> own, I strongly suggest that you make it opt-in, not opt-OUT. I get >> hundreds of emails a day, and need to choose the reflectors I >> subscribe to very carefully. >> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to kr7x at comcast.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hlyingst at yahoo.com From n6kr at elecraft.com Sat Jun 20 14:29:12 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sat, 20 Jun 2020 11:29:12 -0700 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <573e2b90-56b5-2c47-6e4d-2057a3235996@hvc.rr.com> References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> <573e2b90-56b5-2c47-6e4d-2057a3235996@hvc.rr.com> Message-ID: "OPT OUT" is the default for everyone on the forum. No one need send anything to Ken's personal list unless they want to OPT IN. I believe he was just trying to cobble together a list of friends and colleagues who may frequent the Elecraft forum. tnx Wayne N6KR > On Jun 20, 2020, at 11:25 AM, Tommy wrote: > > Opt out for me too please. > > Tom > > On 6/20/20 11:45 AM, Don Schroder wrote: > >> OPT OUT ? KE0PVQ >> >> Sent from Mail for Windows 10 >> >> From: Dave Sublette >> Sent: Saturday, June 20, 2020 10:34 AM >> To: Elecraft Discussion List >> Subject: Re: [Elecraft] I'm building a personal email list.... >> >> OPT OUT--- K4TO >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From dobox at suddenlink.net Sat Jun 20 14:32:21 2020 From: dobox at suddenlink.net (David Box) Date: Sat, 20 Jun 2020 13:32:21 -0500 Subject: [Elecraft] Computer control software In-Reply-To: <61c2c955-2f9b-9c7a-ade4-9264648f49be@kanafi.org> References: <61c2c955-2f9b-9c7a-ade4-9264648f49be@kanafi.org> Message-ID: Why not try Win4K3Suites? it supports K3, KX3, KX2 with great features and tech support is outstanding.? You can download a trial to check it out. Not affilliated with Tom just very satisfied user de Dave K5MWR On 6/20/2020 13:15, Phil Kane wrote: > On 6/20/2020 10:45 AM, John Dorson wrote: > >> Is anyone using computer control programs for the K2 that they have >> downloaded. I have the cabling to connect the K2 to my computer. > I too would be interested. I have a serial port and a USB port that are > still unused on my computer. > >> Have a great weekend all. > And to you all as well. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > >From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dobox at suddenlink.net > From donwilh at embarqmail.com Sat Jun 20 14:36:16 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 20 Jun 2020 14:36:16 -0400 Subject: [Elecraft] Computer control software In-Reply-To: References: Message-ID: John, I don't know what level of control that you desire, but Fldigi can do several rig control functions. It works with the K2, and I have always used hamlib for the support program. 73, Don W3FPR On 6/20/2020 1:45 PM, John Dorson wrote: > Is anyone using computer control programs for the K2 that they have > downloaded. > I have the cabling to connect the K2 to my computer. > From gordon.lapoint at gmail.com Sat Jun 20 14:44:36 2020 From: gordon.lapoint at gmail.com (Gordon LaPoint) Date: Sat, 20 Jun 2020 14:44:36 -0400 Subject: [Elecraft] Computer control software In-Reply-To: References: Message-ID: <1e8bcf81-bcac-2217-0a23-09742868631c@gmail.com> I use DXLabs with my K2 and K3. Gordon - N1MGO On 6/20/2020 13:45 PM, John Dorson wrote: > Is anyone using computer control programs for the K2 that they have > downloaded. > I have the cabling to connect the K2 to my computer. > > Have a great weekend all. > > John K2JHU... > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gordon.lapoint at gmail.com From wrmoore47 at gmail.com Sat Jun 20 15:01:29 2020 From: wrmoore47 at gmail.com (Randy Moore) Date: Sat, 20 Jun 2020 14:01:29 -0500 Subject: [Elecraft] Computer control software In-Reply-To: <1e8bcf81-bcac-2217-0a23-09742868631c@gmail.com> References: <1e8bcf81-bcac-2217-0a23-09742868631c@gmail.com> Message-ID: N1MM contest logging works fine with my K2. 73, Randy, KS4L On Sat, Jun 20, 2020, 1:55 PM Gordon LaPoint wrote: > I use DXLabs with my K2 and K3. > Gordon - N1MGO > > On 6/20/2020 13:45 PM, John Dorson wrote: > > Is anyone using computer control programs for the K2 that they have > > downloaded. > > I have the cabling to connect the K2 to my computer. > > > > Have a great weekend all. > > > > John K2JHU... > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to gordon.lapoint at gmail.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wrmoore47 at gmail.com > From eric at elecraft.com Sat Jun 20 15:08:40 2020 From: eric at elecraft.com (Eric Swartz) Date: Sat, 20 Jun 2020 12:08:40 -0700 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <1680789010.1224571.1592677640853@mail.yahoo.com> References: <1680789010.1224571.1592677640853@mail.yahoo.com> Message-ID: Guys - thread closed. Eric Mooderator etc.. elecraft.com _..._ From eric at elecraft.com Sat Jun 20 15:09:47 2020 From: eric at elecraft.com (Eric Swartz) Date: Sat, 20 Jun 2020 12:09:47 -0700 Subject: [Elecraft] Elecraft] I'm building a personal email list In-Reply-To: <027b01d64727$da4797f0$8ed6c7d0$@gmail.com> References: <027b01d64727$da4797f0$8ed6c7d0$@gmail.com> Message-ID: <45DC18E0-8970-45C6-933F-091D3D835239@elecraft.com> Guys, Thread closed. Eric Mooderator etc.. elecraft.com _..._ From eric at elecraft.com Sat Jun 20 15:11:13 2020 From: eric at elecraft.com (Eric Swartz) Date: Sat, 20 Jun 2020 12:11:13 -0700 Subject: [Elecraft] Current Draw on 20M In-Reply-To: References: Message-ID: <4D27912A-6FB7-457D-A792-04924A75B52A@elecraft.com> This is common. Nothing to worry about. 73, Eric elecraft.com _..._ > On Jun 19, 2020, at 5:47 AM, Rich wrote: > > ?I just received my K3S back from repair and all seemed OK. However it appears to draw much more current on 20M than any other band. 22 - 24 amps. I have tried two different 20m antennas and a dummy load. > > All other bands are 20 amps or lower. Some as low at 17amps. > > Power Supply voltage per K3s display 14.0v standby and 13.3 on TX > > First off is this actually something of concern? > > I hate to do a calibration as it was just done by Elecraft service two weeks ago. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to eric.swartz at elecraft.com From eric at elecraft.com Sat Jun 20 15:13:18 2020 From: eric at elecraft.com (Eric Swartz) Date: Sat, 20 Jun 2020 12:13:18 -0700 Subject: [Elecraft] Segments in KX3 display In-Reply-To: <001701d6471b$eb3b7600$c1b26200$@qsl.net> References: <001701d6471b$eb3b7600$c1b26200$@qsl.net> Message-ID: As long as they work normally once the radio has finished turning on, there is nothing to worry about. 73, Eric elecraft.com _..._ > On Jun 20, 2020, at 9:01 AM, oz6abm at qsl.net wrote: > > ?Hi, > > > > I have a KX3 and when applying power (turning it on) some segments in the display light up before the entire display becomes active. They are there for about 1 second, but on another KX3 I have there is no such issue? > > > > Rgrds > > Robin > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to eric.swartz at elecraft.com From tjerhardt at sbcglobal.net Sat Jun 20 15:40:26 2020 From: tjerhardt at sbcglobal.net (Terry Erhardt) Date: Sat, 20 Jun 2020 12:40:26 -0700 Subject: [Elecraft] e mail list References: <1FE43099-9CE7-4CB1-88FB-EE6313979518.ref@sbcglobal.net> Message-ID: <1FE43099-9CE7-4CB1-88FB-EE6313979518@sbcglobal.net> Hello I would like to get on the email list and get a copy when done. thx Terry Erhardt tjerhardt at sbcglobal.net W8TJE 73 you all From w2ljqrp at gmail.com Sat Jun 20 15:46:37 2020 From: w2ljqrp at gmail.com (Larry Makoski) Date: Sat, 20 Jun 2020 15:46:37 -0400 Subject: [Elecraft] First Day of Summer! Message-ID: It's officially the First Day of Summer, and that means it's time to sign up for your official 2020 NJQRP Skeeter Hunt number. Join in on Sunday, August 16th for fun in one of the more popular QRP Operating Events of the Summer. All you have to do is send an e-mail to w2ljqrp at gmail.com, and you'll receive an answer back with your very own Skeeter number. No, it's not necessary to have one to participate, but it sure adds to the fun! For all the details about the Sprint - please visit https://www.qsl.net/w2lj/ And to see the Roster for those who have signed up so far, please visit https://docs.google.com/spreadsheets/d/1quCECsmE_cgHexgQhpkHeltX2cIlveSqI_tVqK1z0GM/edit?usp=sharing I'm sure you'll recognize a lot of the names and calls there. This year's bonus qualifier - use a homebrew antenna for an extra 100 bonus points. Not that we have anything against commercial antennas, or their manufacturers - it's just that antenna making is one of the most fun parts of Amateur Radio and just about anyone can cobble up something! See you all on the air on Sunday, Augyut 16th! Larry W2LJ - Skeeter # 13 From w1sfr.qrp at gmail.com Sat Jun 20 15:47:15 2020 From: w1sfr.qrp at gmail.com (Stephen Roberts) Date: Sat, 20 Jun 2020 15:47:15 -0400 Subject: [Elecraft] K1 Problems Message-ID: I'm suddenly out of a signal. I get hiss but no signal. I'm using a k1 fil 2 40/20 board. I was getting weak gain on the 40m side so went in to peak the L1/L2 L5/L6 Inductors. I messed about with them but was unable to peak them as I heard no change in the volume of the hiss. I also tried C2 Gain tweak and not joy there either. I hear no change in the hiss volume as I turn it. I rigged up my 7300 with a dummy load and xmitted on 7050 and 14050 and heard a signal but still no effect by changing L1/L2 or L5/L6 I pulled the band board looking for any issues with soldering or whatever and found nothing. Put the board back in and now I get zip. No receive at all, just hissing. It was working fine yesterday although I felt the gain was very low and needed adjustment which led me to this point in time. Suggestions on how to get it going again? 73 Steve, W1SFR From ve3nr at bell.net Sat Jun 20 16:33:28 2020 From: ve3nr at bell.net (Bert) Date: Sat, 20 Jun 2020 16:33:28 -0400 Subject: [Elecraft] K1 Problems In-Reply-To: References: Message-ID: Hi Steve, Is the problem on both 20 and 40? If only one band check the band crystal on the filter board. C2 on the filter board is a fixed cap - no tweaking! ;-) Also check connectors J6 and J7 on filter board. Bad connection - use some DeOxit5 cleaner. Start with alignment according to the manual, if you haven't done that. Good luck! Bert VE3NR On 2020-06-20 15:47, Stephen Roberts wrote: > I'm suddenly out of a signal. I get hiss but no signal. I'm using a k1 fil 2 40/20 board. > > I was getting weak gain on the 40m side so went in to peak the L1/L2 L5/L6 Inductors. > I messed about with them but was unable to peak them as I heard no change in the > volume of the hiss. > > I also tried C2 Gain tweak and not joy there either. I hear no change in the hiss volume > as I turn it. > > I rigged up my 7300 with a dummy load and xmitted on 7050 and 14050 and heard a signal > but still no effect by changing L1/L2 or L5/L6 > > I pulled the band board looking for any issues with soldering or whatever and found > nothing. Put the board back in and now I get zip. No receive at all, just hissing. > > It was working fine yesterday although I felt the gain was very low and needed adjustment > which led me to this point in time. > > Suggestions on how to get it going again? > > 73 > Steve, W1SFR > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ve3nr at bell.net From mails at qrp4fun.de Sat Jun 20 17:17:40 2020 From: mails at qrp4fun.de (Ingo Meyer, DK3RED) Date: Sat, 20 Jun 2020 23:17:40 +0200 Subject: [Elecraft] Computer control software In-Reply-To: References: Message-ID: <335b7645-8fd0-ca72-9484-398b52c82f2d@qrp4fun.de> Hello John, > Is anyone using computer control programs for the K2 that they have > downloaded. > I have the cabling to connect the K2 to my computer. Sometimes, if I'm too lazy to key or I need to go fast, I use KComm together with the K2. KComm is designed by Julian Moss, G4ILO. The program is available on . 73/72 de Ingo, DK3RED - Don't forget: the fun is the power! www.qrp4fun.de - dk3red at qrp4fun.de From donwilh at embarqmail.com Sat Jun 20 17:18:16 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 20 Jun 2020 17:18:16 -0400 Subject: [Elecraft] K1 Problems In-Reply-To: References: Message-ID: Steve, The quickest way to do the alignment is to use an RF Probe or an oscilloscope with a 10X probe. First probe band board P1 pin 6 and peak for maximum RF on both bands. The can be done in receive. Then connect a dummy load and do a TUNE at about 1.5 watts. Connect a probe to band board P2 pin 8. First on band 1, adjust L5 and L6 for a peak - then refine the adjustment of L1 and L2 to maximize that peak. Do the same for Band 2 - adjust L7 and L8 for a peak, and then refine the adjustment of L3 and L4. Do you have power output? refine the adjustment of L7 and L8 on Band 2 and adjusting for maximum power - an external QRP wattmeter is handy for that step. Switch to Band 1 and refine the adjustment of L5 and L6 for maximum power output. When you have done that, the band board has been aligned the best it can be. If you still have a receive problem it is somewhere other than the band board. I am not sure what you mean by "C2 Gain tweek" -- C2 is a fixed capacitor in the VFO. If you meant C20, then that shifts the BFO, and it should be set to center the signal in your receive passband. You can adjust C20 - while receiving your local signal, adjust the VFO to maximize the signal, without regard for the pitch (do this with the narrowest K1 filter set). After doing that, adjust C20 so that you hear the signal at your preferred pitch. Make sure the sidetone (in the menu) is set for that same pitch. 73, Don W3FPR On 6/20/2020 3:47 PM, Stephen Roberts wrote: > I'm suddenly out of a signal. I get hiss but no signal. I'm using a k1 fil 2 40/20 board. > > I was getting weak gain on the 40m side so went in to peak the L1/L2 L5/L6 Inductors. > I messed about with them but was unable to peak them as I heard no change in the > volume of the hiss. > > I also tried C2 Gain tweak and not joy there either. I hear no change in the hiss volume > as I turn it. > > I rigged up my 7300 with a dummy load and xmitted on 7050 and 14050 and heard a signal > but still no effect by changing L1/L2 or L5/L6 > From reillyjf at gmail.com Sat Jun 20 17:59:28 2020 From: reillyjf at gmail.com (John Reilly) Date: Sat, 20 Jun 2020 15:59:28 -0600 Subject: [Elecraft] [K3] RTTY Setup: Solutions In-Reply-To: References: Message-ID: <7abcc0b5-f7dc-f8a9-2c40-6fa3de3b8104@gmail.com> Here are the solutions to my questions: 1. FSK/AFSK Mode - The solution was to set the RTTY mode in N1MM to AFSK 2. Intermittent failure to go to receive after transmit: There are at least three ways to setup the K3 and N1MM for RTTY AFSK PTT: ??? a. Use Serial RTS for PTT ??? b. Use "PTT via Radio Command Digital Mode" ??? c. Use VOX Note that you cannot use more than one of these at a time. FWIW, my RTTY N1MM macros do have {RX} at the end of each line. The first two did not solve my problem -- I still failed to return to RX about a third of the time; however, VOX appears to have fixed the problem. I wish I knew why the first two don't work. This is probably applicable to WSJTx PTT, too. Thanks to those who replied, ? - 73, John, N0TA From nv4c.ian at gmail.com Sat Jun 20 18:14:06 2020 From: nv4c.ian at gmail.com (Ian Kahn) Date: Sat, 20 Jun 2020 18:14:06 -0400 Subject: [Elecraft] [K3] RTTY Setup: Solutions In-Reply-To: <7abcc0b5-f7dc-f8a9-2c40-6fa3de3b8104@gmail.com> References: <7abcc0b5-f7dc-f8a9-2c40-6fa3de3b8104@gmail.com> Message-ID: John, Have you submitted these items as a bug report to the N1MM Logger+ developer team? I bet they would appreciate hearing about your issue. 73 de, Ian, NV4C On Sat, Jun 20, 2020, 6:00 PM John Reilly wrote: > Here are the solutions to my questions: > 1. FSK/AFSK Mode - The solution was to set the RTTY mode in N1MM to AFSK > > 2. Intermittent failure to go to receive after transmit: There are at > least three ways to setup the K3 and N1MM for RTTY AFSK PTT: > a. Use Serial RTS for PTT > b. Use "PTT via Radio Command Digital Mode" > c. Use VOX > Note that you cannot use more than one of these at a time. FWIW, my RTTY > N1MM macros do have {RX} at the end of each line. > The first two did not solve my problem -- I still failed to return to RX > about a third of the time; however, VOX appears to have fixed the > problem. I wish I knew why the first two don't work. > > This is probably applicable to WSJTx PTT, too. > > Thanks to those who replied, > - 73, John, N0TA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nv4c.ian at gmail.com From nr4c at widomaker.com Sat Jun 20 19:38:56 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 20 Jun 2020 19:38:56 -0400 Subject: [Elecraft] PX3 displaying artifacts... In-Reply-To: <000201d64706$a02b0c80$e0812580$@mail.dk> References: <000201d64706$a02b0c80$e0812580$@mail.dk> Message-ID: <5E773AE7-1385-4F00-8D4F-74EBA0008003@widomaker.com> There is artifact(s) that appear on PX3 but they are really low strength and will disappear as you see real signals. Sent from my iPhone ...nr4c. bill > On Jun 20, 2020, at 9:29 AM, Robin via Elecraft wrote: > > ?I have tried this with two KX3?s with the same result. > > > > When connecting a PX3 to a KX3 and there is no antenna, the flat signal on the PX3 has some artifacts. The highest being where the KX3 unit is placed and then 2 to 3 on each side symmetrically of decreasing amplitude. This means that when you scroll the VFO for a signal it appears as if you are always on a signal! > > Usinbg the same PX3 on another KX3 I get the same. > > > > Unless KX3 rigs are sensitive to some local noise (compared with a K3 where there are no artifacts on a P3) then it may be the PX3 itself, but what is the adjustment to cancel this? Any clues or suggestions would be appreciated. > > > > 73 > > Robin > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From nr4c at widomaker.com Sat Jun 20 19:44:07 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 20 Jun 2020 19:44:07 -0400 Subject: [Elecraft] Segments in KX3 display In-Reply-To: <370E5292-DAA2-4108-9D46-AA1DC64AA084@elecraft.com> References: <370E5292-DAA2-4108-9D46-AA1DC64AA084@elecraft.com> Message-ID: <630DD501-653F-4A85-A96A-9A5C84B20A96@widomaker.com> Shhhhhhhh.... Careful, everyone?s going to want theirs to do this. Sent from my iPhone ...nr4c. bill > On Jun 20, 2020, at 12:35 PM, Wayne Burdick wrote: > > ?Robin, > > The LCD controller's internal segment memory is scrambled at power-on. Most of them reset quickly to all segments cleared, but a certain percentage still remain scrambled until the firmware has completed the power-up process. > > This has no effect on operation and is not an indication of a problem. > > 73, > Wayne > N6KR > > > >> On Jun 20, 2020, at 9:00 AM, oz6abm at qsl.net wrote: >> >> Hi, >> >> >> >> I have a KX3 and when applying power (turning it on) some segments in the display light up before the entire display becomes active. They are there for about 1 second, but on another KX3 I have there is no such issue? >> >> >> >> Rgrds >> >> Robin >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6kr at elecraft.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From pvandyke1953 at gmail.com Sat Jun 20 20:43:43 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Sat, 20 Jun 2020 20:43:43 -0400 Subject: [Elecraft] Don't forget the Elecraft Nets Message-ID: The Elecraft Nets ---------------------------------- 20 Meter SSB Elecraft Net Sunday 14.3035 +/- kHz at 1800Z 40 Meter SSB Elecraft Net Sunday 7.280 kHz at 18:45z 20 Meter CW Elecraft Net Sunday 14.050.5 kHz at 2200z: 40 Meter CW Elecraft Net Sunday 7.047.5 kHz at 0000z: 80 Meter SSB Elecraft Net Sunday Night 3.940+/- at 01:00z Paul - KB9AVO From k3bh at arrl.net Sat Jun 20 21:19:40 2020 From: k3bh at arrl.net (Jay Rutherford) Date: Sat, 20 Jun 2020 21:19:40 -0400 Subject: [Elecraft] KX3 buttons.... In-Reply-To: References: <8A7E754B-A78E-46EA-95C7-606A8C25C1DA.ref@yahoo.com> <8A7E754B-A78E-46EA-95C7-606A8C25C1DA@yahoo.com> Message-ID: <38fe9808-030c-4a45-81dc-6c4b9c16b765@www.fastmail.com> On Sat, Jun 20, 2020, at 21:17, Jay Rutherford wrote: Skip, I know that. The OP asked where the 7, 8, and 9 keys were on a KX3 (not the KX2) and Wayne said they were by the OFS B. That is not the case with the KX3, where they are on the left 3 knobs. 73 Jay K3BH > On Sat, Jun 20, 2020, at 20:45, Skip Davis wrote: > > Jay on the KX2 the RIT/Splt is 7, DISPLAY/MENU is 8, and VFOB/OFS IS 9. > > Look at page 12 of the KX2 manual. > > > > Skip Davis, NC9O > > Sent from my iPhone > > > > From kevinr at coho.net Sun Jun 21 00:05:37 2020 From: kevinr at coho.net (kevinr) Date: Sat, 20 Jun 2020 21:05:37 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <48f9b6a2-d23a-3fcb-7438-d3be0ee92443@coho.net> Good Evening, ?? We are back to a blank sun today.? The auroral oval is faint too.? I was hoping last week's CME on the back side would bring more sunspots over the limb.? I'll have to keep waiting.? Solar flux is down from last week at 69 sfu.? That means most of the noise on HF will be from summer storms. ?? The weather alternated between heavy storms and sunny days.? I drove into and out of a storm on my way to Banks and did the same thing on the way back.? Two miles of Hwy 26 where the sky was black and the pavement overflowing with rain.? On the way back up the mountain the sun came out.? Then a mile later a doe and two spotted fawns crossed the road.? About a half mile later I saw a buck in velvet diving into the trees.? Now I know why I haven't been seeing deer lately. Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) ? 7047 kHz at 0000z Monday (5 PM PDT Sunday) ?? 73, ????? Kevin. KD5ONS _ From kevin at ve3syb.ca Sun Jun 21 01:36:14 2020 From: kevin at ve3syb.ca (Kevin Cozens) Date: Sun, 21 Jun 2020 01:36:14 -0400 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: Message-ID: <9267e593-3539-ac1b-05ed-98f79ed477fe@ve3syb.ca> On 2020-06-19 4:05 p.m., Ken G Kopp wrote: > If you -don't- want to be included -do- say so. I won't be offended. What is the purpose of the list you are building? Whatever it is for it should be opt-in, not opt-out. I'm not opting in. I get enough email as it is from the lists I chose to join. -- Cheers! Kevin. http://www.ve3syb.ca/ | "Nerds make the shiny things that https://www.patreon.com/KevinCozens | distract the mouth-breathers, and | that's why we're powerful" Owner of Elecraft K2 #2172 | #include | --Chris Hardwick From mdavis1 at harding.edu Sun Jun 21 10:55:54 2020 From: mdavis1 at harding.edu (M Davis) Date: Sun, 21 Jun 2020 07:55:54 -0700 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> Message-ID: Please remove me from new added list WB5YEY > On Jun 19, 2020, at 6:14 PM, Al K0VM via Elecraft wrote: > > ?not me > al, K0VM > >> On 6/19/2020 3:05 PM, Ken G Kopp wrote: >> If you -don't- want to be included -do- say so. I won't be offended. >> >> Regards, >> >> Ken Kopp - K0PP >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to al.k0vm at yahoo.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mdavis1 at harding.edu From frantz at pwpconsult.com Sun Jun 21 11:16:36 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sun, 21 Jun 2020 11:16:36 -0400 Subject: [Elecraft] Computer control software In-Reply-To: Message-ID: RUMlogNG and WSJT-X for the Macintosh both list the K2 as a supported rig. 73 Bill AE6JV On 6/20/20 at 1:45 PM, johnk2jhu at gmail.com (John Dorson) wrote: > Is anyone using computer control programs for the K2 that they have > downloaded. ----------------------------------------------------------------------- Bill Frantz | There's nothing so clear | Periwinkle (408)348-7900 | as a design you haven't | 150 Rivermead Rd #235 www.pwpconsult.com | written down. - Dean Tribble| Peterborough, NH 03458 From k3 at hollywoodtitle.com Sun Jun 21 11:53:02 2020 From: k3 at hollywoodtitle.com (Eric KG6MZS) Date: Sun, 21 Jun 2020 08:53:02 -0700 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: References: Message-ID: Hello All, I?ve had two antenna connectors fail in the last year because the cheap hardware store screws and connectors get rusty. What is a good source for high quality stainless steel hardware like bolts, screws, washers, ring connectors and the like? TIA, 73 de Eric, KG6MZS From ghyoungman at gmail.com Sun Jun 21 11:54:36 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sun, 21 Jun 2020 11:54:36 -0400 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: References: Message-ID: McMaster-Carr ? > On Jun 21, 2020, at 11:53 AM, Eric KG6MZS wrote: > > Hello All, > > I?ve had two antenna connectors fail in the last year because the cheap hardware store screws and connectors get rusty. > > What is a good source for high quality stainless steel hardware like bolts, screws, washers, ring connectors and the like? > > TIA, > 73 de Eric, KG6MZS From radioham at mchsi.com Sun Jun 21 12:04:45 2020 From: radioham at mchsi.com (David Christ) Date: Sun, 21 Jun 2020 11:04:45 -0500 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: References: Message-ID: <5DE68FAC-3642-4B43-B120-58D82144644E@mchsi.com> No nuts and bolts but eye-bolts, turnbuckles, and anything else that can be used on a boat. I have a friend who buys from them. I have no other connection. > On Jun 21, 2020, at 10:53 AM, Eric KG6MZS wrote: > > Hello All, > > I?ve had two antenna connectors fail in the last year because the cheap hardware store screws and connectors get rusty. > > What is a good source for high quality stainless steel hardware like bolts, screws, washers, ring connectors and the like? > > TIA, > 73 de Eric, KG6MZS From tim.n9puz at gmail.com Sun Jun 21 12:13:01 2020 From: tim.n9puz at gmail.com (Tim N9PUZ) Date: Sun, 21 Jun 2020 11:13:01 -0500 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: References: Message-ID: If you live somewhere that has farm supply store like Big R, Rural King, etc they usually have a good selection of stainless hardware. Tim N9PUZ On Sun, Jun 21, 2020, 10:54 AM Eric KG6MZS wrote: > Hello All, > > I?ve had two antenna connectors fail in the last year because the cheap > hardware store screws and connectors get rusty. > > What is a good source for high quality stainless steel hardware like > bolts, screws, washers, ring connectors and the like? > > TIA, > 73 de Eric, KG6MZS > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to tim.n9puz at gmail.com From nr4c at widomaker.com Sun Jun 21 12:23:54 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 21 Jun 2020 12:23:54 -0400 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: References: Message-ID: <88BA8E23-5444-4EFE-836C-E0EA2FA9E1D5@widomaker.com> Ace Hardware sells a lot of Stainless hardware. As do Lowe?s and Home Depot. Then there is Hrsinger, Fastenal. Then don?t forget Master Carr. Sent from my iPhone ...nr4c. bill > On Jun 21, 2020, at 11:54 AM, Eric KG6MZS wrote: > > ?Hello All, > > I?ve had two antenna connectors fail in the last year because the cheap hardware store screws and connectors get rusty. > > What is a good source for high quality stainless steel hardware like bolts, screws, washers, ring connectors and the like? > > TIA, > 73 de Eric, KG6MZS > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From ki4lys at msn.com Sun Jun 21 12:28:12 2020 From: ki4lys at msn.com (Joseph McIntire) Date: Sun, 21 Jun 2020 16:28:12 +0000 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: References: , Message-ID: TSC has some i get mine from the local Do It center. They are a little pricey though. Sent from my Verizon, Samsung Galaxy smartphone ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Tim N9PUZ Sent: Sunday, June 21, 2020 11:13:01 AM Cc: Elecraft Subject: Re: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? If you live somewhere that has farm supply store like Big R, Rural King, etc they usually have a good selection of stainless hardware. Tim N9PUZ On Sun, Jun 21, 2020, 10:54 AM Eric KG6MZS wrote: > Hello All, > > I?ve had two antenna connectors fail in the last year because the cheap > hardware store screws and connectors get rusty. > > What is a good source for high quality stainless steel hardware like > bolts, screws, washers, ring connectors and the like? > > TIA, > 73 de Eric, KG6MZS > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to tim.n9puz at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ki4lys at msn.com From mike.flowers at gmail.com Sun Jun 21 14:12:04 2020 From: mike.flowers at gmail.com (Mike Flowers) Date: Sun, 21 Jun 2020 11:12:04 -0700 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: References: Message-ID: <30EAA7E1-7EED-4EC7-ACB7-07896A238EEF@gmail.com> Also, keep in mind that there are different classes of stainless steel fasteners with different properties and ratings. A good start for this info: https://www.fastenermart.com/understanding-fastener-grades-and-classes.html I was advised to use Class 6 fasteners for my tower and antenna projects. -- 73 de Mike Flowers, K6MKF, NCDXC - "It's about DX!" > On Jun 21, 2020, at 9:29 AM, Joseph McIntire wrote: > > ?TSC has some i get mine from the local Do It center. They are a little pricey though. > > Sent from my Verizon, Samsung Galaxy smartphone > > ________________________________ > From: elecraft-bounces at mailman.qth.net on behalf of Tim N9PUZ > Sent: Sunday, June 21, 2020 11:13:01 AM > Cc: Elecraft > Subject: Re: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? > > If you live somewhere that has farm supply store like Big R, Rural King, > etc they usually have a good selection of stainless hardware. > > Tim N9PUZ > >> On Sun, Jun 21, 2020, 10:54 AM Eric KG6MZS wrote: >> >> Hello All, >> >> I?ve had two antenna connectors fail in the last year because the cheap >> hardware store screws and connectors get rusty. >> >> What is a good source for high quality stainless steel hardware like >> bolts, screws, washers, ring connectors and the like? >> >> TIA, >> 73 de Eric, KG6MZS >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to tim.n9puz at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ki4lys at msn.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mike.flowers at gmail.com From goldtr8 at charter.net Sun Jun 21 14:39:28 2020 From: goldtr8 at charter.net (KD8NNU) Date: Sun, 21 Jun 2020 14:39:28 -0400 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: <30EAA7E1-7EED-4EC7-ACB7-07896A238EEF@gmail.com> References: <30EAA7E1-7EED-4EC7-ACB7-07896A238EEF@gmail.com> Message-ID: <9367B0B2-9AC0-41D4-8C48-32194A22E9F7@charter.net> When using stainless hardware there is very little strength compared to a steel fastener. So the minimum strength needs to be confirmed. You don't want the bolts to shear and topple over. Please be careful to get the right grade bolts. You will not get what you need at a hardware store or a tractor supply. KD8NNU Thanks Don Sent from my iPad > On Jun 21, 2020, at 2:12 PM, Mike Flowers wrote: > > Also, keep in mind that there are different classes of stainless steel fasteners with different properties and ratings. > > A good start for this info: > > https://www.fastenermart.com/understanding-fastener-grades-and-classes.html > > I was advised to use Class 6 fasteners for my tower and antenna projects. > > -- 73 de Mike Flowers, K6MKF, NCDXC - "It's about DX!" > >> On Jun 21, 2020, at 9:29 AM, Joseph McIntire wrote: >> >> ?TSC has some i get mine from the local Do It center. They are a little pricey though. >> >> Sent from my Verizon, Samsung Galaxy smartphone >> >> ________________________________ >> From: elecraft-bounces at mailman.qth.net on behalf of Tim N9PUZ >> Sent: Sunday, June 21, 2020 11:13:01 AM >> Cc: Elecraft >> Subject: Re: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? >> >> If you live somewhere that has farm supply store like Big R, Rural King, >> etc they usually have a good selection of stainless hardware. >> >> Tim N9PUZ >> >>> On Sun, Jun 21, 2020, 10:54 AM Eric KG6MZS wrote: >>> >>> Hello All, >>> >>> I?ve had two antenna connectors fail in the last year because the cheap >>> hardware store screws and connectors get rusty. >>> >>> What is a good source for high quality stainless steel hardware like >>> bolts, screws, washers, ring connectors and the like? >>> >>> TIA, >>> 73 de Eric, KG6MZS >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to tim.n9puz at gmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ki4lys at msn.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to mike.flowers at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to goldtr8 at charter.net From donwilh at embarqmail.com Sun Jun 21 15:18:56 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 21 Jun 2020 15:18:56 -0400 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: <9367B0B2-9AC0-41D4-8C48-32194A22E9F7@charter.net> References: <30EAA7E1-7EED-4EC7-ACB7-07896A238EEF@gmail.com> <9367B0B2-9AC0-41D4-8C48-32194A22E9F7@charter.net> Message-ID: You can find a lot of information about fasteners at the McMaster Carr website. 73, Don W3FPR On 6/21/2020 2:39 PM, KD8NNU wrote: > When using stainless hardware there is very little strength compared to a steel fastener. > > So the minimum strength needs to be confirmed. You don't want the bolts to shear and topple over. > > Please be careful to get the right grade bolts. You will not get what you need at a hardware store or a tractor supply. > From n6jpa.1 at gmail.com Sun Jun 21 16:41:37 2020 From: n6jpa.1 at gmail.com (Keith N6JPA) Date: Sun, 21 Jun 2020 13:41:37 -0700 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: References: Message-ID: Having to replace rusty screws and connectors every year can be pricey and time consuming. On 6/21/2020 9:28 AM, Joseph McIntire wrote: > TSC has some i get mine from the local Do It center. They are a little pricey though. > > Sent from my Verizon, Samsung Galaxy smartphone > > ________________________________ > From: elecraft-bounces at mailman.qth.net on behalf of Tim N9PUZ > Sent: Sunday, June 21, 2020 11:13:01 AM > Cc: Elecraft > Subject: Re: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? > > If you live somewhere that has farm supply store like Big R, Rural King, > etc they usually have a good selection of stainless hardware. > > Tim N9PUZ > > On Sun, Jun 21, 2020, 10:54 AM Eric KG6MZS wrote: > >> Hello All, >> >> I?ve had two antenna connectors fail in the last year because the cheap >> hardware store screws and connectors get rusty. >> >> What is a good source for high quality stainless steel hardware like >> bolts, screws, washers, ring connectors and the like? >> >> TIA, >> 73 de Eric, KG6MZS >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to tim.n9puz at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ki4lys at msn.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6jpa.1 at gmail.com From krug261 at yahoo.com Sun Jun 21 17:40:31 2020 From: krug261 at yahoo.com (krug261 at yahoo.com) Date: Sun, 21 Jun 2020 21:40:31 +0000 (UTC) Subject: [Elecraft] PX3 displaying artifacts... In-Reply-To: <5E773AE7-1385-4F00-8D4F-74EBA0008003@widomaker.com> References: <000201d64706$a02b0c80$e0812580$@mail.dk> <5E773AE7-1385-4F00-8D4F-74EBA0008003@widomaker.com> Message-ID: <1984676912.1089976.1592775631036@mail.yahoo.com> How close is the PX3 to your PS? I know my unit has spikes from the PS placement. Try separating or running off?of a battery, if available. Bob, KA2TQV On Saturday, June 20, 2020, 7:40 PM, Nr4c wrote: There is artifact(s) that appear on PX3 but they are really low strength and will disappear as you see real signals.? Sent from my iPhone ...nr4c. bill > On Jun 20, 2020, at 9:29 AM, Robin via Elecraft wrote: > > ?I have tried this with two KX3?s with the same result. > > > > When connecting a PX3 to a KX3 and there is no antenna, the flat signal on the PX3 has some artifacts. The highest being where the KX3 unit is placed and then 2 to 3 on each side symmetrically of decreasing amplitude. This means that when you scroll the VFO for a signal it appears as if you are always on a signal! > > Usinbg the same PX3 on another KX3 I get the same. > > > > Unless KX3 rigs are sensitive to some local noise (compared with a K3 where there are no artifacts on a P3) then it may be the PX3 itself, but what is the adjustment to cancel this? Any clues or suggestions would be appreciated. > > > > 73 > > Robin > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to krug261 at yahoo.com From kevinr at coho.net Sun Jun 21 22:29:30 2020 From: kevinr at coho.net (kevinr) Date: Sun, 21 Jun 2020 19:29:30 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: <8018b31e-1259-e3f5-5458-69fe18747d8c@coho.net> Good Evening, ?? QSB was deep and present on every signal.? Noise was not too bad on my end.? I could not hear any storms either.? But, no noise normally means the band is weak.? Today was no exception. Conditions on 40 meters were worse.? I was trying to form characters out of what little noise there was.? I wasn't sure if it was ESP or my imagination.? I checked my antenna twice and the power once.? Everything was as it should be but still no replies. Luckily, this is the longest day of the year so the day will only get shorter from here.? If the sun becomes more active I would not complain. ? On 14050.5 kHz at 2200z: W0CZ - Ken - ND NO8V - John - MI K4TO - Dave - KY KL7CW - Rick - AK AC5P - Mike - OK ? On 7047.5 kHz at 0000z: --- ---- ---- ? Happy Father's Day and the beginning of summer, ????? 73,? Kevin.? KD5ONS - From w6ipa at poxika.net Sun Jun 21 23:48:06 2020 From: w6ipa at poxika.net (W6IPA) Date: Sun, 21 Jun 2020 20:48:06 -0700 Subject: [Elecraft] K3S noisy line-out Message-ID: <629DE552-E539-47DE-B4B8-304C61D80112@poxika.net> Hi, I tried looking online, but could not find any reference of what I?m experiencing. On a new to me K3s assembled from a kit, I have high noise on the line out - which seems to be similar to ground loop noise. I have no such noise on the headphone jack in the back and in the front or USB Audio. I have tested by using a Zoom H1n line in. Almost feels like there is a something with this specific connector. I?ve tried to play with the CONGIF:Lin OUT menu setting - but I always get the same issue. I also tried to disconnect the USB cable with no change. It?s not critical as I?m using the headphone jack and USB connection without issue. Anything obvious I?m missing ? Thanks JC/W6IPA. From nr4c at widomaker.com Mon Jun 22 03:13:31 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 22 Jun 2020 03:13:31 -0400 Subject: [Elecraft] K3S noisy line-out In-Reply-To: <629DE552-E539-47DE-B4B8-304C61D80112@poxika.net> References: <629DE552-E539-47DE-B4B8-304C61D80112@poxika.net> Message-ID: Note that if you plug a connector into either Lin-In or -Out, the audio on the USB cable is no longer available. You can?t use both. Sent from my iPhone ...nr4c. bill > On Jun 21, 2020, at 11:51 PM, W6IPA wrote: > > ?Hi, > > I tried looking online, but could not find any reference of what I?m experiencing. > On a new to me K3s assembled from a kit, I have high noise on the line out - which seems to be similar to ground loop noise. > I have no such noise on the headphone jack in the back and in the front or USB Audio. I have tested by using a Zoom H1n line in. > Almost feels like there is a something with this specific connector. > I?ve tried to play with the CONGIF:Lin OUT menu setting - but I always get the same issue. I also tried to disconnect the USB cable with no change. > It?s not critical as I?m using the headphone jack and USB connection without issue. > > Anything obvious I?m missing ? > > Thanks > > JC/W6IPA. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From kzerocx at gmail.com Mon Jun 22 07:57:12 2020 From: kzerocx at gmail.com (Gary Peterson) Date: Mon, 22 Jun 2020 05:57:12 -0600 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Message-ID: Stainless hardware is commonly used on FM broadcast antennas. Stainless is a bit on the gummy side. When tightened, the threads tend to distort and this can make future disassembly a challenge. Tower crews frequently end up twisting off nuts or bolt heads when replacing damaged elements. If you are going to use stainless hardware, I suggest applying anti-seize lubricant, available at auto supply stores, to reduce seizing and galling. I also suggest never reusing stainless hardware. Replace with new. Gary, K0CX ?When using stainless hardware there is very little strength compared to a steel fastener. So the minimum strength needs to be confirmed. You don't want the bolts to shear and topple over. Please be careful to get the right grade bolts. You will not get what you need at a hardware store or a tractor supply. KD8NNU? From fgstcf at gmail.com Mon Jun 22 08:01:41 2020 From: fgstcf at gmail.com (Fred Soop) Date: Mon, 22 Jun 2020 07:01:41 -0500 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? Message-ID: <45948980-F3DC-417E-AE71-A6453C20A5B3@gmail.com> Albany County Fasteners. They used to sell from eBay but now have their own web site. www.albanycountyfasteners.com 73 Fred AC9RQ From mbaileycrna at gmail.com Mon Jun 22 08:14:47 2020 From: mbaileycrna at gmail.com (Morgan Bailey) Date: Mon, 22 Jun 2020 07:14:47 -0500 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: <45948980-F3DC-417E-AE71-A6453C20A5B3@gmail.com> References: <45948980-F3DC-417E-AE71-A6453C20A5B3@gmail.com> Message-ID: That is a great site. Thanks for sharing. 73, Morgan NJ8M On Mon, Jun 22, 2020 at 7:04 AM Fred Soop wrote: > Albany County Fasteners. They used to sell from eBay but now have their > own web site. > > www.albanycountyfasteners.com > > 73 > Fred AC9RQ > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mbaileycrna at gmail.com > From elanzl at sbcglobal.net Mon Jun 22 10:17:00 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Mon, 22 Jun 2020 14:17:00 +0000 (UTC) Subject: [Elecraft] SSB Net 6-21-2020 References: <1158702812.1445151.1592835420955.ref@mail.yahoo.com> Message-ID: <1158702812.1445151.1592835420955@mail.yahoo.com> Here is the list of stations checking in to the Sunday 20m SSB net. For next week June 28th we will not have the net due to Field Day which takes place next week. We will resume again the following week. The 40 and 80 nets will also not take place next week. Good Luck to those participating in Field Day. Eric WB9JNZ Call???????????? Name????? State?????? Radio????? Serial #????? QRP?????????????????????????????????????? Notes WB9JNZ??????????? Eric?????????????? ? IL??????????????????? K3????????????????? 4017????????????????? ?????????????????????????????????????????????? NetControl K7BRR????????????? Bill????????????????? AZ???????????????? ? K3S??????????????? 10939?????????????? ?????????????????????????????????????????????? ? K8NU/7????????? ?? Carl??????????????? OH/WA????? ? Yaesu FT???????????? 2000????????????????? ?????????????????????????????????????????????? ? NC0JW??????????? ? Jim???????????????? CO??????????????? ?? KX3????????????? ? 1356????????????????? ?????????????????????????????????????????????? RelayStation KO5V??????????????? Jim??????????????? ? NM??????????????? K2/100??????? ? ? ? 7225????????????????? ?????????????????????????????????????????????? RelayStation WM6P??????????? ?? Steve?????????? ?? GA?????????????? ? ? K3S????????????? 11453?????????????? ?????????????????????????????????????????????? ? N6PGQ????????????? Bob????????????? ? CA??????????????? ?? K3?????????????????? 5891????????????????? ?????????????????????????????????????????????? ? N4NRW????????????? Roger???????? ?? SC???????????????? ? K2???????????????? ? 3515????????????????? ?????????????????????????????????????????????? ? KS6F?????????????? ? Guy ???????????? ? CA?????????????????? K3S?????????????? 11672?????????????? ?????????????????????????????????????????????? ? K3ICH????????????? ? Charlie?????? ? ? VA??????????????????? K3S?????????????? 10137?????????????? ?????????????????????????????????????????????? 1stTime check in W1USN????????? ??? Mike?????????? ? ? MA???????????? ? ? ? K3???????????????? ? 1964????????????????? ?????????????????????????????????????????????? ? N7YW????????????? ?? Ken?????????????? AZ???????????????? ?? K3???????????????? ? 8183????????????????? ???????????????????????????????????????????? 1stTime check in KC1ACL???????? ? ? Steve?????????? ? NM?????????????????? KX3???????????? ? 10677?????????????? ?????????????????????????????????????????????? ? WA0BEU?????? ? ??? Keith???????????? CO?????????????????? KX3???????????????? 7048????????????????? ?????????????????????????????????????????????? ? W7HSG?????????? ?? Ralph????????? ?? AZ??????????????? ?? K3??????????????? ?? 4629????????????????? ?????????????????????????????????????????????? ? W7QHD???????? ?? ? Kurt?????????????? AZ???????????????? ?? K2/100??????????? 1538????????????????? ?????????????????????????????????????????????? ? W1DFB?????????? ?? Don??????????????? AZ?????????????? ? ? K3?????????????? ?? ? 2937????????????????? ?????????????????????????????????????????????? ? N0MPM???????? ? ?? Mike??????????????? IA????????????????? ? K3S?????????????? 10514?????????????? ?????????????????????????????????????????????? ? NZ2S????????????????? Jeff??????????????? WA?????????????? ? ? Icom??????????????? 7300????????????????? ?????????????????????????????????????????????? ? W0LEN?????????? ? ? Len??????????????? IL?????????????????? ? Icom??????????? ? ? 7300????????????????? ??????????????????????????????????? kpa 500 1st Time check in NS7P??????????? ?? ?? Phil??????????????? OR?????????????? ? ? K3?????????????? ? ? 1826????????????????? ?????????????????????????????????????????????? RelayStation K6VWE???????? ?? ? Stan??????????? ?? MI??????????????? ? ?? K3??????????????? ? ?? 650??????????????????? ?????????????????????????????????????????????? ? K6SBA???????????? ?? David??????????? CA???????????? ? ? ?? K3????????????? ? ?? ? 565??????????????????? ?????????????????????????????????????????????? ? AI6B?????????????? ?? ? Brian???????????? CA?????????????? ? ? KX2???????????? ? ?? 1869????????????????? ?????????????????????????????????????????????? ? KS7D??????????????? ? Mike????????? ?? ? FL?????????????????? K3??????????????? ? ? ? 118??????????????????? ?????????????????????????????????????????????? ? N4NUI?????????? ? ??? Jay?????????????? ? UT????????????? ?? ? K3???????????????? ?? 3755????????????????? ?????????????????????????????????????????????? ? K6WDE?????????? ?? David???????? ??? CA?????????????????? KX3????????????? ? ? 4599????????????????? ?????????????????????????????????????????????? ? WW4JF????????? ? ? John???????????? ? TN?????????????? ? ? K3S??????????????? 11177?????????????? ?????????????????????????????????????????????? ? K7ZM???????????? ? ? Bill??????????????? ?? NM???????????????? Swan?????????? ?? 500CX From skipnc9o at yahoo.com Sat Jun 20 11:24:13 2020 From: skipnc9o at yahoo.com (Skip Davis) Date: Sat, 20 Jun 2020 11:24:13 -0400 Subject: [Elecraft] KX3 buttons.... References: <47B3AE38-2F51-41D5-9622-D0BF2265261F.ref@yahoo.com> Message-ID: <47B3AE38-2F51-41D5-9622-D0BF2265261F@yahoo.com> Robin what bug did you uncover? On my KX3 the numbers 7,8,9 are clearly marked above right of each control. Volume/RF/Mon, Filter/BPT, and Speed/Power Just as described in the manual. Skip Davis, NC9O Sent from my iPhone From kengkopp at gmail.com Sat Jun 20 12:26:49 2020 From: kengkopp at gmail.com (Ken G Kopp) Date: Sat, 20 Jun 2020 10:26:49 -0600 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> Message-ID: John, It was a bungled effort to make a small personal mailing list. I've asked Elecraft to remove / block it. 73 Ken Kopp - K0PP On Sat, Jun 20, 2020, 10:19 John wrote: > I ask just what is this list to be used for? > > > On 20/06/2020 8:32 a.m., Dave Sublette wrote: > > OPT OUT--- K4TO > > > > On Sat, Jun 20, 2020 at 11:21 AM Don Wilhelm > wrote: > > > >> I am with Jim and Gwen. I have too many lists right now. > >> > >> 73, > >> Don W3FPR > >> > >> On 6/20/2020 11:03 AM, Jim Sheldon wrote: > >>> Ken, > >>> Exactly as Gwen Patton said, CONTACT list fine as my email address is > >>> also on QRZ but if you are starting a reflector. Do NOT put my email > >>> address in automatically. IF I don't have the prerogative to OPT-OUT, > I > >>> want no part of it. > >>> > >>> Jim, W0EB > >>> > >>> > >>>> I'm confused. Do you mean a personal CONTACT list, or a mailing list > >> like > >>>> the Elecraft reflector? > >>>> > >>>> If it's the former, I don't mind if you associate my address with, > >>>> say, my > >>>> call sign, so you can contact me if you need to. That's because you > >> could > >>>> look me up on QRZ and find my email address. It's no big deal. > >>>> > >>>> But if you mean a REFLECTOR, including me in mass mailings, then I'll > >>>> have > >>>> to say no, thank you. If you want to have a reflector of your own, I > >>>> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds > >>>> of emails a day, and need to choose the reflectors I subscribe to very > >>>> carefully. > >>>> > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to k4to at arrl.net > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to ve7day at telus.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kengkopp at gmail.com > From pincon at erols.com Sun Jun 21 15:28:44 2020 From: pincon at erols.com (Charlie T) Date: Sun, 21 Jun 2020 15:28:44 -0400 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: <9367B0B2-9AC0-41D4-8C48-32194A22E9F7@charter.net> References: <30EAA7E1-7EED-4EC7-ACB7-07896A238EEF@gmail.com> <9367B0B2-9AC0-41D4-8C48-32194A22E9F7@charter.net> Message-ID: <007701d64802$3107fd70$9317f850$@erols.com> Also, it's a good idea to smear some "never-seize" compound on threaded surfaces, especially on the larger antenna mounting hardware. SS hardware has a tendency to "gall" ( I think that's the correct term) which results from the heat generated by excess friction between the mating surfaces. The tighter you try to make a connection, the more likely this phenomenon is to occur. Once this happens, you may as well wring off the afflicted bolt and throw it away, cause you'll never get it off with regular tools. The bad news is that generally, you won't notice it until you try to remove the hardware. Your socket wrench will be extremely hard to turn, and when it does, it doesn't actually "come-loose" since the threads are effectively stripped. Here's a link for more info on the subject: https://www.essentracomponents.com/en-gb/news/product-resources/how-to-prevent-galling-on-stainless-steel-bolts 73, Charlie k3ICH From w6ipa at poxika.net Mon Jun 22 11:45:24 2020 From: w6ipa at poxika.net (W6IPA .) Date: Mon, 22 Jun 2020 08:45:24 -0700 Subject: [Elecraft] K3S noisy line-out In-Reply-To: References: <629DE552-E539-47DE-B4B8-304C61D80112@poxika.net> Message-ID: Ah - that?s interesting - with my focus on the noise I did not realize that. Thanks for pointing it out - this makes the plug less useful ! I?ll try to reseat the board too. Jc/w6ipa On Mon, Jun 22, 2020 at 12:13 AM Nr4c wrote: > Note that if you plug a connector into either Lin-In or -Out, the audio on > the USB cable is no longer available. You can?t use both. > > > > Sent from my iPhone > ...nr4c. bill > > > > On Jun 21, 2020, at 11:51 PM, W6IPA wrote: > > > > ?Hi, > > > > I tried looking online, but could not find any reference of what I?m > experiencing. > > On a new to me K3s assembled from a kit, I have high noise on the line > out - which seems to be similar to ground loop noise. > > I have no such noise on the headphone jack in the back and in the front > or USB Audio. I have tested by using a Zoom H1n line in. > > Almost feels like there is a something with this specific connector. > > I?ve tried to play with the CONGIF:Lin OUT menu setting - but I always > get the same issue. I also tried to disconnect the USB cable with no change. > > It?s not critical as I?m using the headphone jack and USB connection > without issue. > > > > Anything obvious I?m missing ? > > > > Thanks > > > > JC/W6IPA. > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to nr4c at widomaker.com > From gibson at alma.edu Mon Jun 22 12:27:00 2020 From: gibson at alma.edu (John Gibson) Date: Mon, 22 Jun 2020 16:27:00 +0000 Subject: [Elecraft] K3 Audio Peaking Filter Message-ID: Each Sunday evening, I use my K3 #820 to try to check into Kevin?s 20m Elecraft CW net. Kevin in Oregon is almost 1900 miles from me in Michigan, and I succeed only because I have a modest tri-band beam antenna at 60 ft. Current propagation conditions make this especially challenging. Sometimes Kevin is so buried in noise that I find him only because I can recognize the rhythm of his sending. Last evening, conditions were poor. I tuned all around the net frequency and could hear nothing of Kevin. Then I turned on my K3's Audio Peaking Filter (APF), searched again, and found him, and he was loud! When I turned off the APF, he vanished. I did check into the net. My K3's APF made all the difference between hearing Kevin and not finding him. I am impressed that it worked so well. I thank Wayne N6KR for creating this feature for the K3. 73, John, no8v From radioham at mchsi.com Mon Jun 22 12:50:39 2020 From: radioham at mchsi.com (David Christ) Date: Mon, 22 Jun 2020 11:50:39 -0500 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: <007701d64802$3107fd70$9317f850$@erols.com> References: <30EAA7E1-7EED-4EC7-ACB7-07896A238EEF@gmail.com> <9367B0B2-9AC0-41D4-8C48-32194A22E9F7@charter.net> <007701d64802$3107fd70$9317f850$@erols.com> Message-ID: <619E28EC-10F7-47EB-B2F4-DC9DBB9B3204@mchsi.com> Although we are talking about antennas, some information from the bicycle world is informative. Stainless steel couplers are used to enable bicycles to be broken down for airline shipping. If the threads on one of these couplers were to gall on a multi thousand dollar bicycle, the cost to replace the coupler could be in the thousands. To that end the coupler manufacturer tested over 100 different products to see what worked best. You can see his methodology and results here and the recommendation here . I have no financial stake in this beyond owning a bicycle with stainless steel couplers. David K0LUM > On Jun 21, 2020, at 2:28 PM, Charlie T wrote: > > Also, it's a good idea to smear some "never-seize" compound on threaded surfaces, especially on the larger antenna mounting hardware. > SS hardware has a tendency to "gall" ( I think that's the correct term) which results from the heat generated by excess friction between the mating surfaces. > The tighter you try to make a connection, the more likely this phenomenon is to occur. > Once this happens, you may as well wring off the afflicted bolt and throw it away, cause you'll never get it off with regular tools. > The bad news is that generally, you won't notice it until you try to remove the hardware. Your socket wrench will be extremely hard to turn, and when it does, it doesn't actually "come-loose" since the threads are effectively stripped. > > Here's a link for more info on the subject: https://www.essentracomponents.com/en-gb/news/product-resources/how-to-prevent-galling-on-stainless-steel-bolts > > > 73, Charlie k3ICH > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radioham at mchsi.com From jim.gmforum at gmail.com Mon Jun 22 12:54:41 2020 From: jim.gmforum at gmail.com (Jim Borowski) Date: Mon, 22 Jun 2020 11:54:41 -0500 Subject: [Elecraft] K4 Issue Message-ID: <5ef0e252.1c69fb81.26839.b9fb@mx.google.com> I am having depression for lack of excitment about the hobby connected with lost of hope and social distancing on the air waves for fear lack of sunspots when and if the K4 is ever delivered. Last I heard July or August.? People keep asking me when arrive now I tell them July or August but not sure what year since it is not posted for what year:-) I know one thing I have been waiting for over a year for it with a 5K bucks down payment interest free. On good thing is that 5k bucks is as n investment that did not loose value cause of the Mega depression. I need an anti K4 virus protection to counter the COVID-19 depression and blues.Jim K9TFJim K9TFSent from my T-Mobile 4G LTE Device From rick at tavan.com Mon Jun 22 13:38:20 2020 From: rick at tavan.com (Rick Tavan) Date: Mon, 22 Jun 2020 10:38:20 -0700 Subject: [Elecraft] K4 Initial Impressions Message-ID: First of all, let me get this off my chest: *WOW!* The K4 is a spectacular radio. We've all known for some time how nice it looks - the display is gorgeous - from its appearances at hamfests. But now that I've had not only my eyes but also my hands and ears on an *early K4D field test unit*, I can make a few initial comments about the radio from a user perspective. Bottom line: *It was worth the wait.* *The box:* it's the same size as the KPA1500 amp RF deck. They'll look great together and perform as if they were a one-box, 1500 watt radio. I have a KPA1500 but it's at the other shack and hasn't "met" my K4 yet. I plan to introduce them to each other later this week when I travel to the remote QTH. It's a little heavier than the K3 but still a compact, portable radio. The covers have nice flanges for better shielding where they contact the front, rear, and side parts. It looks very much like the successor to K3/K3s that it is, but the display is much more than a re-packaged and internalized P3. *The user interface: *It's very similar to the K3. Tap- and hold-functions let each button and many knobs do double-duty. There are several user-programmable function keys, four message memory buttons that can also serve as per-band frequency memories, and most of the button functions are the same as or similar to identically-labeled K3 functions. Some of the controls are "soft," labeled on the display and adjustable with knobs on the hard panel. It's a thoroughly-familiar UI for a K3 user and, I believe, will be easier to learn for a newcomer to Elecraft radios. There will be context-sensitive Help but I haven't used it. I was skeptical a few weeks ago when an Elecraft developer told me that I would learn the UI in a day. He was wrong. It took less than that. *The panafall:* It's wider, sharper and seems even faster than the already fast and accurate P3. The controls are "soft" rather than dedicated buttons but have very similar functionality. You can adjust the relative heights of the spectrum display and waterfall area. You can assign a single panafall display to either main or sub-rx (which you couldn't do with P3). You can also set up dual panafalls, one for each receiver. And the receivers can be on different bands with different antennas so you can watch two bands at once. This shack doesn't have separate feed lines, so comments on that are theoretical based on the sophisticated antenna switching. I'll be able to say more when I QSY to the more capable mountain QTH later in the week. *The rest of the display:* They did a great job of providing situational awareness here. The two receiver information areas are identical, displaying frequency, S-meter, passband graphic, and mode info. Between those two areas are big, bold indications of which VFO is controlling the TX, whether SPLIT is in effect, and a smaller RIT/XIT indicator. There are "soft" controls on the left that indicate settings for the three multi-function knobs. You can see all the settings at a glance and control them with zero, one, or two taps. It's an effective consolidation of what could have been a large array of separate controls and indicators. *The soft controls: *The eight soft buttons at the bottom invoke various setting areas and menus that temporarily occupy space in the panafall area, condensing the panafall temporarily to make room. The only two that require frequent use are BAND and DISPLAY. BAND brings up band buttons with the long-desired band-stacking register functionality. Personally, I liked the K3 band switching model which now becomes a subset of the richer model in the K4. The DISPLAY functionality is similar to the controls of the P3 but more visually appealing and has the extra power described above. The MENU area is easier to read and much more informative than the K3 main and config menus. Each function has a long, easily-understood description. *Rx Audio:* At risk of overloading my use of an expletive, WOW! The receiver audio is much improved over the K3. It sounds full and rich on both CW and SSB, even before adjusting the touch-sensitive sliders of the RX equalizer. (I'm just starting to experiment with that. Its functionally is like the one in the K3 but has a nice graphic user interface.) I've listened using a Yamaha CM500 headset and using a pair of Insignia computer speakers, both driven through a cheap four-port headphone amp and the speakers through a cascaded, cheap, stereo speaker amp (which shouldn't be necessary with this receiver but I haven't pulled it out of the lash-up). I haven't listened to the internal speaker much yet but it sounded good during a brief test, much better than the one in the K3. *CW:* My favorite mode. The QSK and semi-break-in are excellent. On QSK I can hear between dits at 35+ WPM. It's clean and clear without distracting artifacts. I'll use it often. Semi- break-in is more pleasant, letting in less band noise. You can adjust break-in delay all the way down to "zero" which gives you between-word or, at lower speeds, between-character frequency awareness. Also excellent. *SSB:* On SSB, I've received unsolicited comments about great transmit audio, again using the CM500 mic and no adjustment of the TX equalizer. *Contesting:* I'm a somewhat reformed contester by historical passion but haven't yet had a lot of time "in the fray" with the K4. I made a hundred-plus contacts in the All Asian using the K4, an ACOM 1000 amp, a 3el 20 and 2el shorty-40 around 50', from a Norcal suburban lot. Conditions were poor and I got lots of calls from very weak stations which I was usually able to pull out of the band noise without attempting much knob twiddling. I got a few weak pileups that didn't activate AGC. Fellow field tester N6TV put in more time, made more Qs, and got some pileups of stronger signals. He said he liked the AGC performance but I'll leave it to him to elaborate. I think this radio will do better than the K3 in pileups. I look forward to exercising it from my rural, mountain-ridge QTH with the KPA1500 in conditions that induce more, stronger pileups. *Interfacing: *The K4 is plug-compatible with my K3. With a much better arrangement of rear-panel connectors, higher quality connectors, identical front-panel connectors, and pin-compatibility, it was a seamless conversion. Specifically, the Key In, Paddle In, PTT In, PTT Out, Phones Out, Speaker Out, Line In/Out, Rx ANT In/Out, 12 VDC Accessory Power, and Xvtr In/Out connectors are all the same as K3. It has both USB-B (which I used) and RS-232 to connect to the computer and additional USB-A connectors, one of which I used for a K*Pod which works great. It has an RJ-45 Ethernet connection which provides two-tap "Phone Home" capability to download firmware revisions from the Mother Ship, easier than using K3 Utility. The 15-pin ACC connector is compatible so I had instant antenna switching through a Top-Ten band decoder driving a tower-mounted antenna switch. These capabilities will be even more welcome at the more complex SO2R station in the mountains. Enough for now; more later. I'm loving this radio! 73, /Rick N6XI -- Rick Tavan Truckee and Saratoga, CA From n1rj at roadrunner.com Mon Jun 22 13:51:27 2020 From: n1rj at roadrunner.com (Roger D Johnson) Date: Mon, 22 Jun 2020 13:51:27 -0400 Subject: [Elecraft] K3 Audio Peaking Filter In-Reply-To: References: Message-ID: <21721789-019e-cf29-c760-a1328b46bc5e@roadrunner.com> Unfortunately, the APF is too narrow for 160m with all the lightning noise. As I recall, we've been promised wider selectivity choice(s) but nothing ever happened. 73, Roger On 6/22/2020 12:27 PM, John Gibson wrote: > Each Sunday evening, I use my K3 #820 to try to check into Kevin?s 20m Elecraft CW net. Kevin in Oregon is almost 1900 miles from me in Michigan, and I succeed only because I have a modest tri-band beam antenna at 60 ft. > > Current propagation conditions make this especially challenging. Sometimes Kevin is so buried in noise that I find him only because I can recognize the rhythm of his sending. > > Last evening, conditions were poor. I tuned all around the net frequency and could hear nothing of Kevin. Then I turned on my K3's Audio Peaking Filter (APF), searched again, and found him, and he was loud! When I turned off the APF, he vanished. I did check into the net. > > My K3's APF made all the difference between hearing Kevin and not finding him. I am impressed that it worked so well. I thank Wayne N6KR for creating this feature for the K3. > > 73, > > John, no8v > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n1rj at roadrunner.com > From n6kr at elecraft.com Mon Jun 22 13:54:06 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 22 Jun 2020 10:54:06 -0700 Subject: [Elecraft] K3 Audio Peaking Filter In-Reply-To: <21721789-019e-cf29-c760-a1328b46bc5e@roadrunner.com> References: <21721789-019e-cf29-c760-a1328b46bc5e@roadrunner.com> Message-ID: We just added dual-passband APF to the K4. It's very effective at higher code speeds. 73, Wayne N6KR > On Jun 22, 2020, at 10:51 AM, Roger D Johnson wrote: > > Unfortunately, the APF is too narrow for 160m with all the lightning noise. > As I recall, we've been promised wider selectivity choice(s) but nothing ever > happened. > > 73, Roger > > > On 6/22/2020 12:27 PM, John Gibson wrote: >> Each Sunday evening, I use my K3 #820 to try to check into Kevin?s 20m Elecraft CW net. Kevin in Oregon is almost 1900 miles from me in Michigan, and I succeed only because I have a modest tri-band beam antenna at 60 ft. >> >> Current propagation conditions make this especially challenging. Sometimes Kevin is so buried in noise that I find him only because I can recognize the rhythm of his sending. >> >> Last evening, conditions were poor. I tuned all around the net frequency and could hear nothing of Kevin. Then I turned on my K3's Audio Peaking Filter (APF), searched again, and found him, and he was loud! When I turned off the APF, he vanished. I did check into the net. >> >> My K3's APF made all the difference between hearing Kevin and not finding him. I am impressed that it worked so well. I thank Wayne N6KR for creating this feature for the K3. >> >> 73, >> >> John, no8v >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n1rj at roadrunner.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From w8lvn.9 at gmail.com Mon Jun 22 14:01:31 2020 From: w8lvn.9 at gmail.com (Bill Lederer) Date: Mon, 22 Jun 2020 13:01:31 -0500 Subject: [Elecraft] K4 Initial Impressions In-Reply-To: References: Message-ID: Sounds quite awesome. When you are using the amp, do you do break-in there as well? Thanks, w8lvn On Mon, Jun 22, 2020 at 12:39 PM Rick Tavan wrote: > First of all, let me get this off my chest: *WOW!* The K4 is a spectacular > radio. We've all known for some time how nice it looks - the display is > gorgeous - from its appearances at hamfests. But now that I've had not only > my eyes but also my hands and ears on an *early K4D field test unit*, I can > make a few initial comments about the radio from a user perspective. Bottom > line: *It was worth the wait.* > > *The box:* it's the same size as the KPA1500 amp RF deck. They'll look > great together and perform as if they were a one-box, 1500 watt radio. I > have a KPA1500 but it's at the other shack and hasn't "met" my K4 yet. I > plan to introduce them to each other later this week when I travel to the > remote QTH. It's a little heavier than the K3 but still a compact, portable > radio. The covers have nice flanges for better shielding where they contact > the front, rear, and side parts. It looks very much like the successor to > K3/K3s that it is, but the display is much more than a re-packaged and > internalized P3. > > *The user interface: *It's very similar to the K3. Tap- and hold-functions > let each button and many knobs do double-duty. There are several > user-programmable function keys, four message memory buttons that can also > serve as per-band frequency memories, and most of the button functions are > the same as or similar to identically-labeled K3 functions. Some of the > controls are "soft," labeled on the display and adjustable with knobs on > the hard panel. It's a thoroughly-familiar UI for a K3 user and, I believe, > will be easier to learn for a newcomer to Elecraft radios. There will be > context-sensitive Help but I haven't used it. I was skeptical a few weeks > ago when an Elecraft developer told me that I would learn the UI in a day. > He was wrong. It took less than that. > > *The panafall:* It's wider, sharper and seems even faster than the already > fast and accurate P3. The controls are "soft" rather than dedicated buttons > but have very similar functionality. You can adjust the relative heights of > the spectrum display and waterfall area. You can assign a single panafall > display to either main or sub-rx (which you couldn't do with P3). You can > also set up dual panafalls, one for each receiver. And the receivers can be > on different bands with different antennas so you can watch two bands at > once. This shack doesn't have separate feed lines, so comments on that are > theoretical based on the sophisticated antenna switching. I'll be able to > say more when I QSY to the more capable mountain QTH later in the week. > > *The rest of the display:* They did a great job of providing situational > awareness here. The two receiver information areas are identical, > displaying frequency, S-meter, passband graphic, and mode info. Between > those two areas are big, bold indications of which VFO is controlling the > TX, whether SPLIT is in effect, and a smaller RIT/XIT indicator. There are > "soft" controls on the left that indicate settings for the three > multi-function knobs. You can see all the settings at a glance and control > them with zero, one, or two taps. It's an effective consolidation of what > could have been a large array of separate controls and indicators. > > *The soft controls: *The eight soft buttons at the bottom invoke various > setting areas and menus that temporarily occupy space in the panafall area, > condensing the panafall temporarily to make room. The only two that require > frequent use are BAND and DISPLAY. BAND brings up band buttons with the > long-desired band-stacking register functionality. Personally, I liked the > K3 band switching model which now becomes a subset of the richer model in > the K4. The DISPLAY functionality is similar to the controls of the P3 but > more visually appealing and has the extra power described above. The MENU > area is easier to read and much more informative than the K3 main and > config menus. Each function has a long, easily-understood description. > > *Rx Audio:* At risk of overloading my use of an expletive, WOW! The > receiver audio is much improved over the K3. It sounds full and rich on > both CW and SSB, even before adjusting the touch-sensitive sliders of the > RX equalizer. (I'm just starting to experiment with that. Its functionally > is like the one in the K3 but has a nice graphic user interface.) I've > listened using a Yamaha CM500 headset and using a pair of Insignia computer > speakers, both driven through a cheap four-port headphone amp and the > speakers through a cascaded, cheap, stereo speaker amp (which shouldn't be > necessary with this receiver but I haven't pulled it out of the lash-up). I > haven't listened to the internal speaker much yet but it sounded good > during a brief test, much better than the one in the K3. > > *CW:* My favorite mode. The QSK and semi-break-in are excellent. On QSK I > can hear between dits at 35+ WPM. It's clean and clear without distracting > artifacts. I'll use it often. Semi- break-in is more pleasant, letting in > less band noise. You can adjust break-in delay all the way down to "zero" > which gives you between-word or, at lower speeds, between-character > frequency awareness. Also excellent. > > *SSB:* On SSB, I've received unsolicited comments about great transmit > audio, again using the CM500 mic and no adjustment of the TX equalizer. > > *Contesting:* I'm a somewhat reformed contester by historical passion but > haven't yet had a lot of time "in the fray" with the K4. I made a > hundred-plus contacts in the All Asian using the K4, an ACOM 1000 amp, a > 3el 20 and 2el shorty-40 around 50', from a Norcal suburban lot. Conditions > were poor and I got lots of calls from very weak stations which I was > usually able to pull out of the band noise without attempting much knob > twiddling. I got a few weak pileups that didn't activate AGC. Fellow field > tester N6TV put in more time, made more Qs, and got some pileups of > stronger signals. He said he liked the AGC performance but I'll leave it to > him to elaborate. I think this radio will do better than the K3 in > pileups. I look forward to exercising it from my rural, mountain-ridge QTH > with the KPA1500 in conditions that induce more, stronger pileups. > > *Interfacing: *The K4 is plug-compatible with my K3. With a much better > arrangement of rear-panel connectors, higher quality connectors, identical > front-panel connectors, and pin-compatibility, it was a seamless > conversion. Specifically, the Key In, Paddle In, PTT In, PTT Out, Phones > Out, Speaker Out, Line In/Out, Rx ANT In/Out, 12 VDC Accessory Power, and > Xvtr In/Out connectors are all the same as K3. It has both USB-B (which I > used) and RS-232 to connect to the computer and additional USB-A > connectors, one of which I used for a K*Pod which works great. It has an > RJ-45 Ethernet connection which provides two-tap "Phone Home" capability to > download firmware revisions from the Mother Ship, easier than using K3 > Utility. The 15-pin ACC connector is compatible so I had instant antenna > switching through a Top-Ten band decoder driving a tower-mounted antenna > switch. These capabilities will be even more welcome at the more complex > SO2R station in the mountains. > > Enough for now; more later. I'm loving this radio! > > 73, > > /Rick N6XI > -- > > Rick Tavan > Truckee and Saratoga, CA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w8lvn.9 at gmail.com > -- --w8lvn-- From gibson at alma.edu Mon Jun 22 14:16:45 2020 From: gibson at alma.edu (John Gibson) Date: Mon, 22 Jun 2020 18:16:45 +0000 Subject: [Elecraft] K3 Audio Peaking Filter In-Reply-To: <66F88664-19E0-490D-8002-96C50B706363@me.com> References: , <66F88664-19E0-490D-8002-96C50B706363@me.com> Message-ID: Hi Bill, Thank you for your query. My K3 has the 400 Hz CW roofing filter. Because of currently challenging conditions, I usually set my K3?s width control to 25 Hz. My preferred audio frequency is 600 Hz. Those were my K3?s settings when I tried to check into the Elecraft CW net last evening. I engaged the APF after nothing else worked. Following N6KR?s recommendation, I used fine tuning (1-Hz steps). I tuned around slowly near the expected net frequency of 14.050 MHz and suddenly heard net control Kevin KD5ONS calling at 14.05045 MHz. I recognized Kevin, as I often do, by the rhythm of his sending. He was loud! When I turned off the APF, he vanished. I believe that tuning slowly in 1-Hz steps is the secret to making the APF work. I hope this helps. 73, John, no8v ________________________________________ From: William Hammond Sent: Monday, June 22, 2020 12:55 PM To: John Gibson Subject: Re: [Elecraft] K3 Audio Peaking Filter Hi John, that is fantastic!! I have never experienced anything near what you describe with a K3s or my original updated K3 SN 00069. I find that a very narrow 200 hz CW filter works best for me in those conditions you so apply described. Tell me more, do you open up the filters to kHz? Please describe how you set this please. I have tried all prescriptions I have read on this reflector and had no joy with any of them..perhaps I need some schooling? 73, Bill-AK5X > On Jun 22, 2020, at 11:27 AM, John Gibson wrote: > > Each Sunday evening, I use my K3 #820 to try to check into Kevin?s 20m Elecraft CW net. Kevin in Oregon is almost 1900 miles from me in Michigan, and I succeed only because I have a modest tri-band beam antenna at 60 ft. > > Current propagation conditions make this especially challenging. Sometimes Kevin is so buried in noise that I find him only because I can recognize the rhythm of his sending. > > Last evening, conditions were poor. I tuned all around the net frequency and could hear nothing of Kevin. Then I turned on my K3's Audio Peaking Filter (APF), searched again, and found him, and he was loud! When I turned off the APF, he vanished. I did check into the net. > > My K3's APF made all the difference between hearing Kevin and not finding him. I am impressed that it worked so well. I thank Wayne N6KR for creating this feature for the K3. > > 73, > > John, no8v > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ak5x at me.com From gt-i at gmx.net Mon Jun 22 14:48:10 2020 From: gt-i at gmx.net (gt-i at gmx.net) Date: Mon, 22 Jun 2020 20:48:10 +0200 Subject: [Elecraft] K3 Utility Restore config error In-Reply-To: <99A326B3-157A-4AC9-BC30-7CF24ED3F1A8@illinois.edu> References: <99A326B3-157A-4AC9-BC30-7CF24ED3F1A8@illinois.edu> Message-ID: <44d43d98-d545-627b-51e6-bab76d68f50d@gmx.net> Thanks for the idea, unfortunately the problem persists. This makes me a bit more nervous than before as I have done quite a bit of upgrading lately (144MHz, Reflock, TCXO) and I had a fault in the tuner (capacitor blown), and now the refclock is off by 220Hz. Did anybody else had the problem before and knows the fix? tnx for sharing 73 Gernot DF5RF Am 20.06.2020 um 02:10 schrieb hawley, charles j jr: > I?ve gotten that. I just saved again and that one was ok. Then I deleted the error one...but I don?t think the save with the error is necessarily bad. > > Chuck Jack Hawley > KE9UW > > Sent from my iPhone, cjack > >> On Jun 19, 2020, at 6:38 PM, "gt-i at gmx.net" wrote: >> >> ?Hello, >> anybody encountered a problem restoring a previously saved >> configuration? The error is "No response to write EEPROM block". >> tnx 73 Gernot DF5RF >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to c-hawley at illinois.edu From kthreebo at gmail.com Mon Jun 22 14:49:14 2020 From: kthreebo at gmail.com (barry halterman) Date: Mon, 22 Jun 2020 14:49:14 -0400 Subject: [Elecraft] KX3 and K3s available Message-ID: Thanks for allowing me to post on this group, the K3s, Kx3 and K1 have been sold! Barry K3bo From jim at audiosystemsgroup.com Mon Jun 22 14:56:00 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 22 Jun 2020 11:56:00 -0700 Subject: [Elecraft] K4 Initial Impressions In-Reply-To: References: Message-ID: Hi Bill, I don't have a K4, but I do have a KPA1500 and KA500. Both do flawless QSK using PIN diodes. 73, Jim K9YC On 6/22/2020 11:01 AM, Bill Lederer wrote: > When you are using the amp, do you do break-in there as well? From k3 at hollywoodtitle.com Mon Jun 22 17:28:39 2020 From: k3 at hollywoodtitle.com (Eric KG6MZS) Date: Mon, 22 Jun 2020 14:28:39 -0700 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: <45948980-F3DC-417E-AE71-A6453C20A5B3@gmail.com> References: <45948980-F3DC-417E-AE71-A6453C20A5B3@gmail.com> Message-ID: <690A5CA8-6D44-4D86-855D-14D87866F69A@hollywoodtitle.com> Thanks for the suggestion Fred. I had seen this site when I Googled fasteners but that doesn?t really tell me if they are any good. It?s good to hear from a satisfied ham customer 73 Eric KG6MZS > On Jun 22, 2020, at 5:01 AM, Fred Soop wrote: > > Albany County Fasteners. They used to sell from eBay but now have their own web site. > > www.albanycountyfasteners.com > > 73 > Fred AC9RQ > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k3 at hollywoodtitle.com > From norrislawfirm2 at gmail.com Mon Jun 22 18:01:13 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Mon, 22 Jun 2020 15:01:13 -0700 Subject: [Elecraft] OT Good Source for Stainless Fasteners and Connectors? In-Reply-To: <007701d64802$3107fd70$9317f850$@erols.com> References: <30EAA7E1-7EED-4EC7-ACB7-07896A238EEF@gmail.com> <9367B0B2-9AC0-41D4-8C48-32194A22E9F7@charter.net> <007701d64802$3107fd70$9317f850$@erols.com> Message-ID: This is good advice! I had a 1/4" stainless nut gall on a stainless U-bolt during removal. Twisting the nut hard broke the U-bolt. They were effectively welded together. 73 Eric WD6DBM On Mon, Jun 22, 2020, 8:30 AM Charlie T wrote: > Also, it's a good idea to smear some "never-seize" compound on threaded > surfaces, especially on the larger antenna mounting hardware. > SS hardware has a tendency to "gall" ( I think that's the correct term) > which results from the heat generated by excess friction between the mating > surfaces. > The tighter you try to make a connection, the more likely this phenomenon > is to occur. > Once this happens, you may as well wring off the afflicted bolt and throw > it away, cause you'll never get it off with regular tools. > The bad news is that generally, you won't notice it until you try to > remove the hardware. Your socket wrench will be extremely hard to turn, > and when it does, it doesn't actually "come-loose" since the threads are > effectively stripped. > > Here's a link for more info on the subject: > https://www.essentracomponents.com/en-gb/news/product-resources/how-to-prevent-galling-on-stainless-steel-bolts > > > 73, Charlie k3ICH > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to norrislawfirm2 at gmail.com > From nr4c at widomaker.com Mon Jun 22 18:51:06 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 22 Jun 2020 18:51:06 -0400 Subject: [Elecraft] K4 Issue In-Reply-To: <5ef0e252.1c69fb81.26839.b9fb@mx.google.com> References: <5ef0e252.1c69fb81.26839.b9fb@mx.google.com> Message-ID: <9921A9D3-E63F-4EF5-A229-BAF4BD34B5BC@widomaker.com> Found it! I bought an ICOM 7300. I figure if I feed it right and provide the right fertilizer, it will grow into a K4D by Christmas. Sent from my iPhone ...nr4c. bill > On Jun 22, 2020, at 12:57 PM, Jim Borowski wrote: > > ?I am having depression for lack of excitment about the hobby connected with lost of hope and social distancing on the air waves for fear lack of sunspots when and if the K4 is ever delivered. Last I heard July or August. People keep asking me when arrive now I tell them July or August but not sure what year since it is not posted for what year:-) I know one thing I have been waiting for over a year for it with a 5K bucks down payment interest free. On good thing is that 5k bucks is as n investment that did not loose value cause of the Mega depression. I need an anti K4 virus protection to counter the COVID-19 depression and blues.Jim K9TFJim K9TFSent from my T-Mobile 4G LTE Device > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From Lyn at LNAINC.com Mon Jun 22 20:46:12 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Mon, 22 Jun 2020 19:46:12 -0500 Subject: [Elecraft] K4 Issue In-Reply-To: <9921A9D3-E63F-4EF5-A229-BAF4BD34B5BC@widomaker.com> References: <5ef0e252.1c69fb81.26839.b9fb@mx.google.com> <9921A9D3-E63F-4EF5-A229-BAF4BD34B5BC@widomaker.com> Message-ID: <029501d648f7$b1e141e0$15a3c5a0$@LNAINC.com> Nothing wrong with the 7300. For less than a grand, it outperforms just about everything else ... certainly in its price class. Is it a K4? Hardly. But it is a well-designed, well-built true SDR workhorse. I've had one for 3 years and it has been flawless in performance and durability. Mine runs all day, every day - both digital and SSB. No issues. None. With the MARS mod it even covers 630 meters. It's a dream to interface with a computer, and it teams up nicely with the KPA/KAT500 combo. It would also make a wonderful backup rig for a K series 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Nr4c Sent: Monday, June 22, 2020 5:51 PM To: Jim Borowski Cc: Elecraft Subject: Re: [Elecraft] K4 Issue Found it! I bought an ICOM 7300. I figure if I feed it right and provide the right fertilizer, it will grow into a K4D by Christmas. Sent from my iPhone ...nr4c. bill > On Jun 22, 2020, at 12:57 PM, Jim Borowski wrote: > > ?I am having depression for lack of excitment about the hobby connected with lost of hope and social distancing on the air waves for fear lack of sunspots when and if the K4 is ever delivered. Last I heard July or August. People keep asking me when arrive now I tell them July or August but not sure what year since it is not posted for what year:-) I know one thing I have been waiting for over a year for it with a 5K bucks down payment interest free. On good thing is that 5k bucks is as n investment that did not loose value cause of the Mega depression. I need an anti K4 virus protection to counter the COVID-19 depression and blues.Jim K9TFJim K9TFSent from my T-Mobile 4G LTE Device > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From len at ka7ftp.com Mon Jun 22 20:51:26 2020 From: len at ka7ftp.com (len at ka7ftp.com) Date: Mon, 22 Jun 2020 18:51:26 -0600 Subject: [Elecraft] OT Good Source for Stainless Fasteners and References: Message-ID: <08db01d648f8$6cfabfb0$46f03f10$@ka7ftp.com> +1 on this, though the process is "galling" Galling is one the most common problems when tightening fasteners. Also known as cold welding, galling results in damaged threads, broken fasteners, weakened joints and seized bolts. What causes galling? Essentially, galling is a form of severe adhesive wear. Galling happens during installation to fasteners made of alloys such as stainless steel, aluminum and titanium. While the fastener is being tightened, pressure builds between the thread surfaces and breaks down the protective oxide coatings. Without the oxide coating, the thread?s metal high points are exposed to each other. This, in turn, creates friction, which causes heat that seizes the metal. When galling happens If the galling is minor, slight damage may occur to the thread surface. In that case, the installer may be able to remove the fastener. On the other end, severe cases of galling can weld the nut and bolt together and there is no way to remove the fastener. If the fastener is tightened once galling begins, the fastener may even be twisted off or see its threads stripped. -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gary Peterson Sent: Monday, June 22, 2020 5:57 AM To: elecraft at mailman.qth.net Subject: [Elecraft] OT Good Source for Stainless Fasteners and Stainless hardware is commonly used on FM broadcast antennas. Stainless is a bit on the gummy side. When tightened, the threads tend to distort and this can make future disassembly a challenge. Tower crews frequently end up twisting off nuts or bolt heads when replacing damaged elements. If you are going to use stainless hardware, I suggest applying anti-seize lubricant, available at auto supply stores, to reduce seizing and galling. I also suggest never reusing stainless hardware. Replace with new. Gary, K0CX ?When using stainless hardware there is very little strength compared to a steel fastener. So the minimum strength needs to be confirmed. You don't want the bolts to shear and topple over. Please be careful to get the right grade bolts. You will not get what you need at a hardware store or a tractor supply. KD8NNU? ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to len at ka7ftp.com From donwilh at embarqmail.com Tue Jun 23 00:09:03 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 23 Jun 2020 00:09:03 -0400 Subject: [Elecraft] K4 Issue In-Reply-To: <029501d648f7$b1e141e0$15a3c5a0$@LNAINC.com> References: <5ef0e252.1c69fb81.26839.b9fb@mx.google.com> <9921A9D3-E63F-4EF5-A229-BAF4BD34B5BC@widomaker.com> <029501d648f7$b1e141e0$15a3c5a0$@LNAINC.com> Message-ID: <46796185-a4ae-ebee-e418-c017a9a69987@embarqmail.com> i have a friend who bought a K3S, and then he bought a 7300 because he wanted something smaller. He said there were signals on the K3S that he could not hear and copy on the 7300. So that is one users impression. 73, Don W3FPR On 6/22/2020 8:46 PM, Lyn Norstad wrote: > Nothing wrong with the 7300. > > For less than a grand, it outperforms just about everything else ... certainly in its price class. Is it a K4? Hardly. But it is a well-designed, well-built true SDR workhorse. I've had one for 3 years and it has been flawless in performance and durability. Mine runs all day, every day - both digital and SSB. No issues. None. With the MARS mod it even covers 630 meters. It's a dream to interface with a computer, and it teams up nicely with the KPA/KAT500 combo. > > It would also make a wonderful backup rig for a K series From n6tv at arrl.net Tue Jun 23 05:41:19 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Tue, 23 Jun 2020 02:41:19 -0700 Subject: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush In-Reply-To: References: Message-ID: Summary: The K4D Receiver Audio and QSK performance seems outstanding -- I'm sold. I hesitated to order a K4 until I could hear how one sounded in "real world" pileup conditions, compared to my trusty 11-year old K3s (S/N 1494 and 1495 with KSYN3A upgrades). Well, here is a short recording I made while operating a K4D Field Test unit during the All Asian CW Contest this past weekend, so you can have a listen to the QSK performance and the audio tones when several stations are calling on about the same frequency all at once, which is the typical "pileup mush" situation that has been so difficult for most modern radios to handle (including the K3): https://www.kkn.net/~n6tv/Pileup_Audio_on_K4D_Field_Test_N6TV.mp3 (Headphones recommended). With 2 or 3 guys calling, it seemed *so* much easier to pick out callsigns with the K4D, compared to my K3, especially when they were very close in frequency, which was often. The audio distortion and "beat note buzzing" I still occasionally hear on the K3 is not heard on the K4. *This alone is reason enough for me to order a second K4D* for SO2R contesting. Note: The "thumps" and clicks you hear in the recording while I'm transmitting with full QSK are mostly a side effect of the analog recording method used (rear headphone jack, long cable, ungrounded radio, and microHAM MK2R+ sound card). I think some RF is still getting into the MK2R+ despite lots of ferrites. The "thumps" are not heard in the front panel headphone jack of the K4. The stereo USB Sound in the K4D won't have these issues. I also toggled PRE1 and NR (level 4) when a weak one would call, and it really seemed to help pull them out of the noise. I put both receivers on the same frequency and used A/B to toggle both settings ON and OFF at the same time with a single tap (Main RX had PRE OFF and NR OFF, Sub RX had PRE1 ON and NR ON, and I would swap them). I modified my Win-Test scripts so I could swap A/B from the keyboard of my logging program. I've also made scope control work from the Win-Test keyboard, as with my P3 scripts. The radio responds to CAT commands instantly, as does the touch screen display. Unlike the K3, I could keep the RF Gain at MAX and hear no real problem until the bands got really noisy, then backing it off helped a bit, as did the attenuator. But I like the way the fast AGC worked. Loud stations never hammered my ears, and there's a new "AGC attack time" setting that we don't have in the K3 that will require further experimentation. As for QSK, I went back and forth between QSK ON and QSK OFF, Delay 0.00. There's a huge difference. QSK OFF Delay 0.00 is much quieter, but I like to hear more between elements. QSK performance was *way* better than the K3, especially at high speed (I went up to 39 WPM). Amp. is a KPA1500. No CW jitter was observed, so "CW QRQ" mode is no longer needed to send clean CW at high speed with either internal or external keying. I used 5 ms of keying compensation and got good reports from that, but I need to get out my scope and make some measurements. I figured I would eventually want to order the K4 "HD" model, but I may not need it. So far the receiver performance seems really good, even when getting close to loud signals. But I don't have a way to make the careful receiver performance measurements that Rob Sherwood, NC0B, can make. The band scope has much finer resolution than the P3 or an IC-7851, but I still need to experiment with an external HDMI monitor, which will provide even more pixels for the band scope. Physically, a K4D is smaller than the K3/P3 combo. side by side, and it's only about 3/4" taller and maybe an inch deeper. The K4 buttons have a very nice tactile feel, much improved over the K3. Every knob except AF Gain seems to be an optical encoder rather than a pot, which means there is potential to control just about everything from your logging program keyboard, without having to touch the radio. The "tap to tune" feature of the waterfall display seems to work well for making big frequency movements. I need to try it with a USB mouse. Better than that, there's a new method to automatically adjust the band noise level on the scope so you don't have to constantly fiddle with a "REF LVL" setting as we do on the P3. There's more to write, but this post is long enough already. In sum, I know we've all been waiting a long time for the K4 to be delivered. I think it will be well worth the wait, and that your patience will be rewarded. Meanwhile, me and my fellow volunteer Field Testers will be very busy trying to find all the bugs so that you won't have to. :-) But as delivered to us, it seems very stable, and very usable. Most of the major features are working quite well at this point. 73, Bob, N6TV From wf3t at fastmail.com Tue Jun 23 05:43:11 2020 From: wf3t at fastmail.com (Steven G. Steltzer) Date: Tue, 23 Jun 2020 05:43:11 -0400 Subject: [Elecraft] Re K4D real world user testing Message-ID: <1244cc66-ac14-4118-8a7f-d899f9db698d@www.fastmail.com> There's the news everyone has been waiting for. And may help K9TF keep from over medicating in the future :-) K4D's in the hands of at least 2 very capable contesters. They must be ready to start the production line as soon as Cali's lockdown law expires. And great news about the APF filter, I hope that's already implemented in the units they gave XI and TV. I, for one, am anxious to see what they have to say after FD, when hopefully the bands will be crowded with strong signals and they can generate some good pileups. 73, Steve, WF3T From w2up at comcast.net Tue Jun 23 08:14:50 2020 From: w2up at comcast.net (Barry) Date: Tue, 23 Jun 2020 05:14:50 -0700 (MST) Subject: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush In-Reply-To: References: Message-ID: <1592914490557-0.post@n2.nabble.com> Listening to the recording, I find the thumping during xmit very annoying. Barry W2UP -- Sent from: http://elecraft.365791.n2.nabble.com/ From k2vco.vic at gmail.com Tue Jun 23 09:23:40 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 23 Jun 2020 16:23:40 +0300 Subject: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush In-Reply-To: References: Message-ID: I certainly hope the clicking I hear on the sidetone is an artifact of the recording process, or something that will go away with the production version of the K4! 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 23/06/2020 12:41, Bob Wilson, N6TV wrote: > Summary: The K4D Receiver Audio and QSK performance seems outstanding -- > I'm sold. > > I hesitated to order a K4 until I could hear how one sounded in "real > world" pileup conditions, compared to my trusty 11-year old K3s (S/N 1494 > and 1495 with KSYN3A upgrades). > > Well, here is a short recording I made while operating a K4D Field Test > unit during the All Asian CW Contest this past weekend, so you can have a > listen to the QSK performance and the audio tones when several stations are > calling on about the same frequency all at once, which is the typical > "pileup mush" situation that has been so difficult for most modern radios > to handle (including the K3): > > https://www.kkn.net/~n6tv/Pileup_Audio_on_K4D_Field_Test_N6TV.mp3 > > (Headphones recommended). > > With 2 or 3 guys calling, it seemed *so* much easier to pick out callsigns > with the K4D, compared to my K3, especially when they were very close in > frequency, which was often. The audio distortion and "beat note buzzing" I > still occasionally hear on the K3 is not heard on the K4. *This alone is > reason enough for me to order a second K4D* for SO2R contesting. > > Note: The "thumps" and clicks you hear in the recording while I'm > transmitting with full QSK are mostly a side effect of the analog recording > method used (rear headphone jack, long cable, ungrounded radio, and > microHAM MK2R+ sound card). I think some RF is still getting into the > MK2R+ despite lots of ferrites. The "thumps" are not heard in the front > panel headphone jack of the K4. The stereo USB Sound in the K4D won't have > these issues. > > I also toggled PRE1 and NR (level 4) when a weak one would call, and it > really seemed to help pull them out of the noise. I put both receivers on > the same frequency and used A/B to toggle both settings ON and OFF at the > same time with a single tap (Main RX had PRE OFF and NR OFF, Sub RX had > PRE1 ON and NR ON, and I would swap them). I modified my Win-Test scripts > so I could swap A/B from the keyboard of my > logging program. I've also made scope control work from the Win-Test > keyboard, as with my P3 scripts. The radio responds to CAT commands > instantly, as does the touch screen display. > > Unlike the K3, I could keep the RF Gain at MAX and hear no real problem > until the bands got really noisy, then backing it off helped a bit, as did > the attenuator. But I like the way the fast AGC worked. Loud stations > never hammered my ears, and there's a new "AGC attack time" setting that we > don't have in the K3 that will require further experimentation. > > As for QSK, I went back and forth between QSK ON and QSK OFF, Delay 0.00. > There's a huge difference. QSK OFF Delay 0.00 is much quieter, but I like > to hear more between elements. > > QSK performance was *way* better than the K3, especially at high speed (I > went up to 39 WPM). Amp. is a KPA1500. No CW jitter was observed, so "CW > QRQ" mode is no longer needed to send clean CW at high speed with either > internal or external keying. I used 5 ms of keying compensation and got > good reports from that, but I need to get out my scope and make some > measurements. > > I figured I would eventually want to order the K4 "HD" model, but I may not > need it. So far the receiver performance seems really good, even when > getting close to loud signals. But I don't have a way to make the careful > receiver performance measurements that Rob Sherwood, NC0B, can make. > > The band scope has much finer resolution than the P3 or an IC-7851, but I > still need to experiment with an external HDMI monitor, which will provide > even more pixels for the band scope. > > Physically, a K4D is smaller than the K3/P3 combo. side by side, and it's > only about 3/4" taller and maybe an inch deeper. > > The K4 buttons have a very nice tactile feel, much improved over the K3. > Every knob except AF Gain seems to be an optical encoder rather than a pot, > which means there is potential to control just about everything from your > logging program keyboard, without having to touch the radio. > > The "tap to tune" feature of the waterfall display seems to work well for > making big frequency movements. I need to try it with a USB mouse. Better > than that, there's a new method to automatically adjust the band noise > level on the scope so you don't have to constantly fiddle with a "REF LVL" > setting as we do on the P3. > > There's more to write, but this post is long enough already. > > In sum, I know we've all been waiting a long time for the K4 to be > delivered. I think it will be well worth the wait, and that your patience > will be rewarded. Meanwhile, me and my fellow volunteer Field Testers will > be very busy trying to find all the bugs so that you won't have to. :-) > But as delivered to us, it seems very stable, and very usable. Most of the > major features are working quite well at this point. > > 73, > Bob, N6TV > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com > From k2vco.vic at gmail.com Tue Jun 23 09:31:16 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 23 Jun 2020 16:31:16 +0300 Subject: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush In-Reply-To: References: Message-ID: <4e0ddc79-f80c-0caa-cfa4-93958bd7aeec@gmail.com> Oops, sorry, I listened to the recording before reading the message! 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 23/06/2020 16:23, Victor Rosenthal 4X6GP wrote: > I certainly hope the clicking I hear on the sidetone is an artifact of > the recording process, or something that will go away with the > production version of the K4! > > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > CWops no. 5 > http://www.qsl.net/k2vco/ > . > On 23/06/2020 12:41, Bob Wilson, N6TV wrote: >> Summary:? The K4D Receiver Audio and QSK performance seems outstanding -- >> I'm sold. >> >> I hesitated to order a K4 until I could hear how one sounded in "real >> world" pileup conditions, compared to my trusty 11-year old K3s (S/N 1494 >> and 1495 with KSYN3A upgrades). >> >> Well, here is a short recording I made while operating a K4D Field Test >> unit during the All Asian CW Contest this past weekend, so you can have a >> listen to the QSK performance and the audio tones when several >> stations are >> calling on about the same frequency all at once, which is the typical >> "pileup mush" situation that has been so difficult for most modern radios >> to handle (including the K3): >> >> https://www.kkn.net/~n6tv/Pileup_Audio_on_K4D_Field_Test_N6TV.mp3 >> >> (Headphones recommended). >> >> With 2 or 3 guys calling, it seemed *so* much easier to pick out >> callsigns >> with the K4D, compared to my K3, especially when they were very close in >> frequency, which was often.? The audio distortion and "beat note >> buzzing" I >> still occasionally hear on the K3 is not heard on the K4. *This alone is >> reason enough for me to order a second K4D* for SO2R contesting. >> >> Note:? The "thumps" and clicks you hear in the recording while I'm >> transmitting with full QSK are mostly a side effect of the analog >> recording >> method? used (rear headphone jack, long cable, ungrounded radio, and >> microHAM MK2R+ sound card).? I think some RF is still getting into the >> MK2R+ despite lots of ferrites.? The "thumps" are not heard in the front >> panel headphone jack of the K4.? The stereo USB Sound in the K4D won't >> have >> these issues. >> >> I also toggled PRE1 and NR (level 4) when a weak one would call, and it >> really seemed to help pull them out of the noise.? I put both >> receivers on >> the same frequency and used A/B to toggle both settings ON and OFF at the >> same time with a single tap (Main RX had PRE OFF and NR OFF, Sub RX had >> PRE1 ON and NR ON, and I would swap them).? I modified my Win-Test >> scripts >> so I could swap A/B from the keyboard of my >> logging program.? I've also made scope control work from the Win-Test >> keyboard, as with my P3 scripts.? The radio responds to CAT commands >> instantly, as does the touch screen display. >> >> Unlike the K3, I could keep the RF Gain at MAX and hear no real problem >> until the bands got really noisy, then backing it off helped a bit, as >> did >> the attenuator.? But I like the way the fast AGC worked.? Loud stations >> never hammered my ears, and there's a new "AGC attack time" setting >> that we >> don't have in the K3 that will require further experimentation. >> >> As for QSK, I went back and forth between QSK ON and QSK OFF, Delay 0.00. >> There's a huge difference.? QSK OFF Delay 0.00 is much quieter, but I >> like >> to hear more between elements. >> >> QSK performance was *way* better than the K3, especially at high speed (I >> went up to 39 WPM).?? Amp. is a KPA1500.? No CW jitter was observed, >> so "CW >> QRQ" mode is no longer needed to send clean CW at high speed with either >> internal or external keying. I used 5 ms of keying compensation and got >> good reports from that, but I need to get out my scope and make some >> measurements. >> >> I figured I would eventually want to order the K4 "HD" model, but I >> may not >> need it.? So far the receiver performance seems really good, even when >> getting close to loud signals.? But I don't have a way to make the >> careful >> receiver performance measurements that Rob Sherwood, NC0B, can make. >> >> The band scope has much finer resolution than the P3 or an IC-7851, but I >> still need to experiment with an external HDMI monitor, which will >> provide >> even more pixels for the band scope. >> >> Physically, a? K4D is smaller than the K3/P3 combo. side by side, and >> it's >> only about 3/4" taller and maybe an inch deeper. >> >> The K4 buttons have a very nice tactile feel, much improved over the K3. >> Every knob except AF Gain seems to be an optical encoder rather than a >> pot, >> which means there is potential to control just about everything from your >> logging program keyboard, without having to touch the radio. >> >> The "tap to tune" feature of the waterfall display seems to work well for >> making big frequency movements.? I need to try it with a USB mouse. >> Better >> than that, there's a new method to automatically adjust the band noise >> level on the scope so you don't have to constantly fiddle with a "REF >> LVL" >> setting as we do on the P3. >> >> There's more to write, but this post is long enough already. >> >> In sum, I know we've all been waiting a long time for the K4 to be >> delivered.? I think it will be well worth the wait, and that your >> patience >> will be rewarded.? Meanwhile, me and my fellow volunteer Field Testers >> will >> be very busy trying to find all the bugs so that you won't have to. :-) >> But as delivered to us, it seems very stable, and very usable.? Most >> of the >> major features are working quite well at this point. >> >> 73, >> Bob, N6TV >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k2vco.vic at gmail.com >> From k3 at hollywoodtitle.com Tue Jun 23 10:07:12 2020 From: k3 at hollywoodtitle.com (Eric KG6MZS) Date: Tue, 23 Jun 2020 07:07:12 -0700 Subject: [Elecraft] OT Fasteners & Connectors - Conclusion Message-ID: <4C2719C8-ED09-41E5-B93C-EDB92A267939@hollywoodtitle.com> Thank you everybody for taking the time to respond. I?m trying two sources gleaned from the thread: www.albanycountyfasteners.com https://www.mcmaster.com/ I?m going to try both and see if I can?t get a little more longevity out of my hardware than I was getting with garden-variety hardware from the usual suspects. In addition to these sources, I?ve learned a lot about the care and feeding of fasteners and connectors. Thanks again everybody. 73 Eric Fitzgerald KG6MZS > On Jun 21, 2020, at 12:28 PM, Charlie T > wrote: > > Also, it's a good idea to smear some "never-seize" compound on threaded surfaces, especially on the larger antenna mounting hardware. > SS hardware has a tendency to "gall" ( I think that's the correct term) which results from the heat generated by excess friction between the mating surfaces. > The tighter you try to make a connection, the more likely this phenomenon is to occur. > Once this happens, you may as well wring off the afflicted bolt and throw it away, cause you'll never get it off with regular tools. > The bad news is that generally, you won't notice it until you try to remove the hardware. Your socket wrench will be extremely hard to turn, and when it does, it doesn't actually "come-loose" since the threads are effectively stripped. > > Here's a link for more info on the subject: https://www.essentracomponents.com/en-gb/news/product-resources/how-to-prevent-galling-on-stainless-steel-bolts > > > 73, Charlie k3ICH From phvidston at gmail.com Tue Jun 23 12:11:55 2020 From: phvidston at gmail.com (Paul Hvidston) Date: Tue, 23 Jun 2020 10:11:55 -0600 Subject: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush In-Reply-To: References: Message-ID: <03347433-ca2a-d1d9-7638-9993f03d0274@gmail.com> Just sounds like the audio muting during key-down. The K4 speaker probably rolls off below 300Hz while your recording has higher fidelity. External audio devices would have to roll off the low frequency to avoid it. I bet if the K4 used a VCA rather than a simple clamp you probably would not hear this on the line-out during keying. No idea if it is simple hardware or a DSP operation (easily fixed). Either way, the K4 is impressive. 72 de Paul/N6MGN On 6/23/2020 7:23 AM, Victor Rosenthal 4X6GP wrote: > I certainly hope the clicking I hear on the sidetone is an artifact of > the recording process, or something that will go away with the > production version of the K4! > > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > CWops no. 5 > http://www.qsl.net/k2vco/ > . > On 23/06/2020 12:41, Bob Wilson, N6TV wrote: >> Summary:? The K4D Receiver Audio and QSK performance seems >> outstanding -- >> I'm sold. >> >> I hesitated to order a K4 until I could hear how one sounded in "real >> world" pileup conditions, compared to my trusty 11-year old K3s (S/N >> 1494 >> and 1495 with KSYN3A upgrades). >> >> Well, here is a short recording I made while operating a K4D Field Test >> unit during the All Asian CW Contest this past weekend, so you can >> have a >> listen to the QSK performance and the audio tones when several >> stations are >> calling on about the same frequency all at once, which is the typical >> "pileup mush" situation that has been so difficult for most modern >> radios >> to handle (including the K3): >> >> https://www.kkn.net/~n6tv/Pileup_Audio_on_K4D_Field_Test_N6TV.mp3 >> >> (Headphones recommended). >> >> With 2 or 3 guys calling, it seemed *so* much easier to pick out >> callsigns >> with the K4D, compared to my K3, especially when they were very close in >> frequency, which was often.? The audio distortion and "beat note >> buzzing" I >> still occasionally hear on the K3 is not heard on the K4. *This alone is >> reason enough for me to order a second K4D* for SO2R contesting. >> >> Note:? The "thumps" and clicks you hear in the recording while I'm >> transmitting with full QSK are mostly a side effect of the analog >> recording >> method? used (rear headphone jack, long cable, ungrounded radio, and >> microHAM MK2R+ sound card).? I think some RF is still getting into the >> MK2R+ despite lots of ferrites.? The "thumps" are not heard in the front >> panel headphone jack of the K4.? The stereo USB Sound in the K4D >> won't have >> these issues. >> >> I also toggled PRE1 and NR (level 4) when a weak one would call, and it >> really seemed to help pull them out of the noise.? I put both >> receivers on >> the same frequency and used A/B to toggle both settings ON and OFF at >> the >> same time with a single tap (Main RX had PRE OFF and NR OFF, Sub RX had >> PRE1 ON and NR ON, and I would swap them).? I modified my Win-Test >> scripts >> so I could swap A/B from the keyboard of my >> logging program.? I've also made scope control work from the Win-Test >> keyboard, as with my P3 scripts.? The radio responds to CAT commands >> instantly, as does the touch screen display. >> >> Unlike the K3, I could keep the RF Gain at MAX and hear no real problem >> until the bands got really noisy, then backing it off helped a bit, >> as did >> the attenuator.? But I like the way the fast AGC worked.? Loud stations >> never hammered my ears, and there's a new "AGC attack time" setting >> that we >> don't have in the K3 that will require further experimentation. >> >> As for QSK, I went back and forth between QSK ON and QSK OFF, Delay >> 0.00. >> There's a huge difference.? QSK OFF Delay 0.00 is much quieter, but I >> like >> to hear more between elements. >> >> QSK performance was *way* better than the K3, especially at high >> speed (I >> went up to 39 WPM).?? Amp. is a KPA1500.? No CW jitter was observed, >> so "CW >> QRQ" mode is no longer needed to send clean CW at high speed with either >> internal or external keying. I used 5 ms of keying compensation and got >> good reports from that, but I need to get out my scope and make some >> measurements. >> >> I figured I would eventually want to order the K4 "HD" model, but I >> may not >> need it.? So far the receiver performance seems really good, even when >> getting close to loud signals.? But I don't have a way to make the >> careful >> receiver performance measurements that Rob Sherwood, NC0B, can make. >> >> The band scope has much finer resolution than the P3 or an IC-7851, >> but I >> still need to experiment with an external HDMI monitor, which will >> provide >> even more pixels for the band scope. >> >> Physically, a? K4D is smaller than the K3/P3 combo. side by side, and >> it's >> only about 3/4" taller and maybe an inch deeper. >> >> The K4 buttons have a very nice tactile feel, much improved over the K3. >> Every knob except AF Gain seems to be an optical encoder rather than >> a pot, >> which means there is potential to control just about everything from >> your >> logging program keyboard, without having to touch the radio. >> >> The "tap to tune" feature of the waterfall display seems to work well >> for >> making big frequency movements.? I need to try it with a USB mouse.? >> Better >> than that, there's a new method to automatically adjust the band noise >> level on the scope so you don't have to constantly fiddle with a "REF >> LVL" >> setting as we do on the P3. >> >> There's more to write, but this post is long enough already. >> >> In sum, I know we've all been waiting a long time for the K4 to be >> delivered.? I think it will be well worth the wait, and that your >> patience >> will be rewarded.? Meanwhile, me and my fellow volunteer Field >> Testers will >> be very busy trying to find all the bugs so that you won't have to. :-) >> But as delivered to us, it seems very stable, and very usable.? Most >> of the >> major features are working quite well at this point. >> >> 73, >> Bob, N6TV >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k2vco.vic at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to phvidston at gmail.com From n6kr at elecraft.com Tue Jun 23 12:20:53 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 23 Jun 2020 09:20:53 -0700 Subject: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush In-Reply-To: <03347433-ca2a-d1d9-7638-9993f03d0274@gmail.com> References: <03347433-ca2a-d1d9-7638-9993f03d0274@gmail.com> Message-ID: <74D4BBDC-70F5-4035-8C30-2B2A27E054EC@elecraft.com> Paul, The K4's DSP smoothly ramps audio up/down during muting. There's no "clamp." The artifacts in the recording are not coming from the K4; they're probably due to RFI getting into the external recording device's cables, as Bob mentioned in his posting. Wayne > On Jun 23, 2020, at 9:11 AM, Paul Hvidston wrote: > > Just sounds like the audio muting during key-down. The K4 speaker > probably rolls off below 300Hz while your recording has higher fidelity. > External audio devices would have to roll off the low frequency to avoid > it. I bet if the K4 used a VCA rather than a simple clamp you probably > would not hear this on the line-out during keying. No idea if it is > simple hardware or a DSP operation (easily fixed). Either way, the K4 is > impressive. > > 72 de Paul/N6MGN > > On 6/23/2020 7:23 AM, Victor Rosenthal 4X6GP wrote: >> I certainly hope the clicking I hear on the sidetone is an artifact of >> the recording process, or something that will go away with the >> production version of the K4! >> >> >> 73, >> Victor, 4X6GP >> Rehovot, Israel >> Formerly K2VCO >> CWops no. 5 >> http://www.qsl.net/k2vco/ >> . >> On 23/06/2020 12:41, Bob Wilson, N6TV wrote: >>> Summary: The K4D Receiver Audio and QSK performance seems >>> outstanding -- >>> I'm sold. >>> >>> I hesitated to order a K4 until I could hear how one sounded in "real >>> world" pileup conditions, compared to my trusty 11-year old K3s (S/N >>> 1494 >>> and 1495 with KSYN3A upgrades). >>> >>> Well, here is a short recording I made while operating a K4D Field Test >>> unit during the All Asian CW Contest this past weekend, so you can >>> have a >>> listen to the QSK performance and the audio tones when several >>> stations are >>> calling on about the same frequency all at once, which is the typical >>> "pileup mush" situation that has been so difficult for most modern >>> radios >>> to handle (including the K3): >>> >>> https://www.kkn.net/~n6tv/Pileup_Audio_on_K4D_Field_Test_N6TV.mp3 >>> >>> (Headphones recommended). >>> >>> With 2 or 3 guys calling, it seemed *so* much easier to pick out >>> callsigns >>> with the K4D, compared to my K3, especially when they were very close in >>> frequency, which was often. The audio distortion and "beat note >>> buzzing" I >>> still occasionally hear on the K3 is not heard on the K4. *This alone is >>> reason enough for me to order a second K4D* for SO2R contesting. >>> >>> Note: The "thumps" and clicks you hear in the recording while I'm >>> transmitting with full QSK are mostly a side effect of the analog >>> recording >>> method used (rear headphone jack, long cable, ungrounded radio, and >>> microHAM MK2R+ sound card). I think some RF is still getting into the >>> MK2R+ despite lots of ferrites. The "thumps" are not heard in the front >>> panel headphone jack of the K4. The stereo USB Sound in the K4D >>> won't have >>> these issues. >>> >>> I also toggled PRE1 and NR (level 4) when a weak one would call, and it >>> really seemed to help pull them out of the noise. I put both >>> receivers on >>> the same frequency and used A/B to toggle both settings ON and OFF at >>> the >>> same time with a single tap (Main RX had PRE OFF and NR OFF, Sub RX had >>> PRE1 ON and NR ON, and I would swap them). I modified my Win-Test >>> scripts >>> so I could swap A/B from the keyboard of my >>> logging program. I've also made scope control work from the Win-Test >>> keyboard, as with my P3 scripts. The radio responds to CAT commands >>> instantly, as does the touch screen display. >>> >>> Unlike the K3, I could keep the RF Gain at MAX and hear no real problem >>> until the bands got really noisy, then backing it off helped a bit, >>> as did >>> the attenuator. But I like the way the fast AGC worked. Loud stations >>> never hammered my ears, and there's a new "AGC attack time" setting >>> that we >>> don't have in the K3 that will require further experimentation. >>> >>> As for QSK, I went back and forth between QSK ON and QSK OFF, Delay >>> 0.00. >>> There's a huge difference. QSK OFF Delay 0.00 is much quieter, but I >>> like >>> to hear more between elements. >>> >>> QSK performance was *way* better than the K3, especially at high >>> speed (I >>> went up to 39 WPM). Amp. is a KPA1500. No CW jitter was observed, >>> so "CW >>> QRQ" mode is no longer needed to send clean CW at high speed with either >>> internal or external keying. I used 5 ms of keying compensation and got >>> good reports from that, but I need to get out my scope and make some >>> measurements. >>> >>> I figured I would eventually want to order the K4 "HD" model, but I >>> may not >>> need it. So far the receiver performance seems really good, even when >>> getting close to loud signals. But I don't have a way to make the >>> careful >>> receiver performance measurements that Rob Sherwood, NC0B, can make. >>> >>> The band scope has much finer resolution than the P3 or an IC-7851, >>> but I >>> still need to experiment with an external HDMI monitor, which will >>> provide >>> even more pixels for the band scope. >>> >>> Physically, a K4D is smaller than the K3/P3 combo. side by side, and >>> it's >>> only about 3/4" taller and maybe an inch deeper. >>> >>> The K4 buttons have a very nice tactile feel, much improved over the K3. >>> Every knob except AF Gain seems to be an optical encoder rather than >>> a pot, >>> which means there is potential to control just about everything from >>> your >>> logging program keyboard, without having to touch the radio. >>> >>> The "tap to tune" feature of the waterfall display seems to work well >>> for >>> making big frequency movements. I need to try it with a USB mouse. >>> Better >>> than that, there's a new method to automatically adjust the band noise >>> level on the scope so you don't have to constantly fiddle with a "REF >>> LVL" >>> setting as we do on the P3. >>> >>> There's more to write, but this post is long enough already. >>> >>> In sum, I know we've all been waiting a long time for the K4 to be >>> delivered. I think it will be well worth the wait, and that your >>> patience >>> will be rewarded. Meanwhile, me and my fellow volunteer Field >>> Testers will >>> be very busy trying to find all the bugs so that you won't have to. :-) >>> But as delivered to us, it seems very stable, and very usable. Most >>> of the >>> major features are working quite well at this point. >>> >>> 73, >>> Bob, N6TV >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to k2vco.vic at gmail.com >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to phvidston at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From w2up at comcast.net Tue Jun 23 12:27:00 2020 From: w2up at comcast.net (Barry) Date: Tue, 23 Jun 2020 09:27:00 -0700 (MST) Subject: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush In-Reply-To: <4e0ddc79-f80c-0caa-cfa4-93958bd7aeec@gmail.com> References: <4e0ddc79-f80c-0caa-cfa4-93958bd7aeec@gmail.com> Message-ID: <1592929620839-0.post@n2.nabble.com> Oops, sorry, I listened to the recording before reading the message! Double oops. Me, too! Barry W2UP -- Sent from: http://elecraft.365791.n2.nabble.com/ From wlbaber at bellsouth.net Tue Jun 23 14:22:51 2020 From: wlbaber at bellsouth.net (WILLIE BABER) Date: Tue, 23 Jun 2020 18:22:51 +0000 (UTC) Subject: [Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, no more mush In-Reply-To: <74D4BBDC-70F5-4035-8C30-2B2A27E054EC@elecraft.com> References: <03347433-ca2a-d1d9-7638-9993f03d0274@gmail.com> <74D4BBDC-70F5-4035-8C30-2B2A27E054EC@elecraft.com> Message-ID: <512635267.2063350.1592936571805@mail.yahoo.com> I think the point of the recording was to illustrate receiver recover between elements while sending high speed cw.? I would like to know how much better is k4 than k3, which would mean hearing more between elements of cw at high speed; a better recording is needed or one has to operate the radio itself.? Bob's opinion does carry some weight however. FYI, I could not take full advantage of k3 qsk using HP until I got the kpa1500.? 73, will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Tuesday, June 23, 2020, 9:22:19 AM PDT, Wayne Burdick wrote: Paul, The K4's DSP smoothly ramps audio up/down during muting. There's no "clamp." The artifacts in the recording are not coming from the K4; they're probably due to RFI getting into the external recording device's cables, as Bob mentioned in his posting. Wayne > On Jun 23, 2020, at 9:11 AM, Paul Hvidston wrote: > > Just sounds like the audio muting during key-down. The K4 speaker > probably rolls off below 300Hz while your recording has higher fidelity. > External audio devices would have to roll off the low frequency to avoid > it. I bet if the K4 used a VCA rather than a simple clamp you probably > would not hear this on the line-out during keying. No idea if it is > simple hardware or a DSP operation (easily fixed). Either way, the K4 is > impressive. > > 72 de Paul/N6MGN > > On 6/23/2020 7:23 AM, Victor Rosenthal 4X6GP wrote: >> I certainly hope the clicking I hear on the sidetone is an artifact of >> the recording process, or something that will go away with the >> production version of the K4! >> >> >> 73, >> Victor, 4X6GP >> Rehovot, Israel >> Formerly K2VCO >> CWops no. 5 >> http://www.qsl.net/k2vco/ >> . >> On 23/06/2020 12:41, Bob Wilson, N6TV wrote: >>> Summary:? The K4D Receiver Audio and QSK performance seems >>> outstanding -- >>> I'm sold. >>> >>> I hesitated to order a K4 until I could hear how one sounded in "real >>> world" pileup conditions, compared to my trusty 11-year old K3s (S/N >>> 1494 >>> and 1495 with KSYN3A upgrades). >>> >>> Well, here is a short recording I made while operating a K4D Field Test >>> unit during the All Asian CW Contest this past weekend, so you can >>> have a >>> listen to the QSK performance and the audio tones when several >>> stations are >>> calling on about the same frequency all at once, which is the typical >>> "pileup mush" situation that has been so difficult for most modern >>> radios >>> to handle (including the K3): >>> >>> https://www.kkn.net/~n6tv/Pileup_Audio_on_K4D_Field_Test_N6TV.mp3 >>> >>> (Headphones recommended). >>> >>> With 2 or 3 guys calling, it seemed *so* much easier to pick out >>> callsigns >>> with the K4D, compared to my K3, especially when they were very close in >>> frequency, which was often.? The audio distortion and "beat note >>> buzzing" I >>> still occasionally hear on the K3 is not heard on the K4. *This alone is >>> reason enough for me to order a second K4D* for SO2R contesting. >>> >>> Note:? The "thumps" and clicks you hear in the recording while I'm >>> transmitting with full QSK are mostly a side effect of the analog >>> recording >>> method? used (rear headphone jack, long cable, ungrounded radio, and >>> microHAM MK2R+ sound card).? I think some RF is still getting into the >>> MK2R+ despite lots of ferrites.? The "thumps" are not heard in the front >>> panel headphone jack of the K4.? The stereo USB Sound in the K4D >>> won't have >>> these issues. >>> >>> I also toggled PRE1 and NR (level 4) when a weak one would call, and it >>> really seemed to help pull them out of the noise.? I put both >>> receivers on >>> the same frequency and used A/B to toggle both settings ON and OFF at >>> the >>> same time with a single tap (Main RX had PRE OFF and NR OFF, Sub RX had >>> PRE1 ON and NR ON, and I would swap them).? I modified my Win-Test >>> scripts >>> so I could swap A/B from the keyboard of my >>> logging program.? I've also made scope control work from the Win-Test >>> keyboard, as with my P3 scripts.? The radio responds to CAT commands >>> instantly, as does the touch screen display. >>> >>> Unlike the K3, I could keep the RF Gain at MAX and hear no real problem >>> until the bands got really noisy, then backing it off helped a bit, >>> as did >>> the attenuator.? But I like the way the fast AGC worked.? Loud stations >>> never hammered my ears, and there's a new "AGC attack time" setting >>> that we >>> don't have in the K3 that will require further experimentation. >>> >>> As for QSK, I went back and forth between QSK ON and QSK OFF, Delay >>> 0.00. >>> There's a huge difference.? QSK OFF Delay 0.00 is much quieter, but I >>> like >>> to hear more between elements. >>> >>> QSK performance was *way* better than the K3, especially at high >>> speed (I >>> went up to 39 WPM).? Amp. is a KPA1500.? No CW jitter was observed, >>> so "CW >>> QRQ" mode is no longer needed to send clean CW at high speed with either >>> internal or external keying. I used 5 ms of keying compensation and got >>> good reports from that, but I need to get out my scope and make some >>> measurements. >>> >>> I figured I would eventually want to order the K4 "HD" model, but I >>> may not >>> need it.? So far the receiver performance seems really good, even when >>> getting close to loud signals.? But I don't have a way to make the >>> careful >>> receiver performance measurements that Rob Sherwood, NC0B, can make. >>> >>> The band scope has much finer resolution than the P3 or an IC-7851, >>> but I >>> still need to experiment with an external HDMI monitor, which will >>> provide >>> even more pixels for the band scope. >>> >>> Physically, a? K4D is smaller than the K3/P3 combo. side by side, and >>> it's >>> only about 3/4" taller and maybe an inch deeper. >>> >>> The K4 buttons have a very nice tactile feel, much improved over the K3. >>> Every knob except AF Gain seems to be an optical encoder rather than >>> a pot, >>> which means there is potential to control just about everything from >>> your >>> logging program keyboard, without having to touch the radio. >>> >>> The "tap to tune" feature of the waterfall display seems to work well >>> for >>> making big frequency movements.? I need to try it with a USB mouse. >>> Better >>> than that, there's a new method to automatically adjust the band noise >>> level on the scope so you don't have to constantly fiddle with a "REF >>> LVL" >>> setting as we do on the P3. >>> >>> There's more to write, but this post is long enough already. >>> >>> In sum, I know we've all been waiting a long time for the K4 to be >>> delivered.? I think it will be well worth the wait, and that your >>> patience >>> will be rewarded.? Meanwhile, me and my fellow volunteer Field >>> Testers will >>> be very busy trying to find all the bugs so that you won't have to. :-) >>> But as delivered to us, it seems very stable, and very usable.? Most >>> of the >>> major features are working quite well at this point. >>> >>> 73, >>> Bob, N6TV >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to k2vco.vic at gmail.com >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to phvidston at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wlbaber at bellsouth.net From Lyn at LNAINC.com Tue Jun 23 17:18:29 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 23 Jun 2020 16:18:29 -0500 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software References: Message-ID: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> I meant to follow up on this sooner, but ? so here?s what I found with the KPA500 and KPA Utility Rev 1.13.7.16. First, the KPA500 rear power switch must, of course, remain in the ON position at all times. Once the KPA500 has been powered on with the Front panel switch (and communications is set up properly between the computer and the KPA500), in order to have ON/OFF control from the utility app, the KPA500 must never be turned OFF from the front panel switch. It?s OK to use the other front panel controls (including STANDBY/OPERATE), just not the ON/OFF power button. 73 Lyn, W0LEN -----Original Message----- From: Lyn Norstad [mailto:Lyn at LNAINC.com] Sent: Tuesday, June 09, 2020 3:42 PM To: 'Gordon LaPoint'; 'elecraft at mailman.qth.net' Subject: RE: [Elecraft] KAT500 Remote software and KPA500 remote software If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). In Windows 10, search "Startup Apps." 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint Sent: Tuesday, June 09, 2020 1:45 PM To: elecraft at mailman.qth.net Subject: [Elecraft] KAT500 Remote software and KPA500 remote software Can these remote software's be in host mode on startup? I run a remote and would like to have them connect to the hardware and be in host mode on boot of the computer. Right now I just log on remotely and start each one as needed. Thanks, Gordon - N1MGO From norrislawfirm2 at gmail.com Tue Jun 23 17:32:04 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Tue, 23 Jun 2020 14:32:04 -0700 Subject: [Elecraft] K4 Question Message-ID: My foaming at the mouth over the K4 has been tempered by it having less adjacent channel rejection than the K3 due to the different architecture--at least until the K4HD comes out. I understand this, and the reasons why. Thanks for your answers I know I have asked this question before, but I want to be more specific. My QRM neighbor is S9+65 db on my K3S S-meter. If he is blasting away on ft8 at 7074 kHz at that signal level, how would the plain K4 receiver perform at 7034 kHz on CW? Would there be AGC pumping, RX desense, or other degradation, or would I be able to carry on a CW qso unmolested like I can with my K3? What about an adjacent band like 3534 kHz or 10114 kHz? Or is the answer I have to wait for the K4HD? No speculation, please, I'm looking for a real-world or lab-world answer. Thanks and, 73 Eric WD6DBM From jackbrindle at me.com Tue Jun 23 18:15:47 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 23 Jun 2020 15:15:47 -0700 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> References: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> Message-ID: <6E43A03C-6ECD-478A-B922-9CAC562F7C8B@me.com> Take another look. You should be able to power on/off the KPA500 using the front power button as well as through the KPA Utility. The Utility does a great job of detecting the KPA500?s current data rate whether it is on or off (the two rates may be different) and will communicate at the proper rate to power the amplifier on or off using the ON/OFF button in the Operate panel. Turning the back panel switch to the OFF position will, of course, disable the ability to power on the amplifier using wither the KPA Utility or the front panel pushbutton. 73! Jack, W6FB > On Jun 23, 2020, at 2:18 PM, Lyn Norstad wrote: > > I meant to follow up on this sooner, but ? so here?s what I found with the KPA500 and KPA Utility Rev 1.13.7.16. First, the KPA500 rear power switch must, of course, remain in the ON position at all times. > > > > Once the KPA500 has been powered on with the Front panel switch (and communications is set up properly between the computer and the KPA500), in order to have ON/OFF control from the utility app, the KPA500 must never be turned OFF from the front panel switch. > > > > It?s OK to use the other front panel controls (including STANDBY/OPERATE), just not the ON/OFF power button. > > > > 73 > > Lyn, W0LEN > > > > > > -----Original Message----- > From: Lyn Norstad [mailto:Lyn at LNAINC.com] > Sent: Tuesday, June 09, 2020 3:42 PM > To: 'Gordon LaPoint'; 'elecraft at mailman.qth.net' > Subject: RE: [Elecraft] KAT500 Remote software and KPA500 remote software > > > > If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. > > > > To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). > > > > In Windows 10, search "Startup Apps." > > > > 73 > > Lyn, W0LEN > > > > -----Original Message----- > > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint > > Sent: Tuesday, June 09, 2020 1:45 PM > > To: elecraft at mailman.qth.net > > Subject: [Elecraft] KAT500 Remote software and KPA500 remote software > > > > Can these remote software's be in host mode on startup? I run a remote > > and would like to have them connect to the hardware and be in host mode > > on boot of the computer. Right now I just log on remotely and start > > each one as needed. > > > > Thanks, > > > > Gordon - N1MGO > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From kg7vq01 at gmail.com Tue Jun 23 18:25:55 2020 From: kg7vq01 at gmail.com (Russ Edelen) Date: Tue, 23 Jun 2020 16:25:55 -0600 Subject: [Elecraft] K2 after kat2 install Q7 & 8 check Message-ID: <450dc866-ee2e-1c40-842c-62b31d35a944@gmail.com> When I check, both show no resistance reading. Shorted probes read -1`or zero. I am reading from both the holding bolt and a 2D block to the collector. The kat2 instructions say to look for greater the 100 ohms and the k2 manual says to check for a short for proper installation. Infinite resistance meets these criteria but I'm not sure that's a proper interpretation. k2 is second hand No. 01112 firmware 2.04 Thanks for any clarification. Russ KG7VQ From donovanf at starpower.net Tue Jun 23 18:27:05 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Tue, 23 Jun 2020 18:27:05 -0400 (EDT) Subject: [Elecraft] K4 Question In-Reply-To: Message-ID: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> Hi Eric, We use more than a dozen K3 transceivers at the W3AO Field Day with as many as four operating in the same band (CW, SSB, FT8 and GOTA SSB), but not this year... (: There's absolutely no trace of interference between four K3 transceivers operating in the same band, despite the antennas being less than 250 feet apart and no external filtering to minimize in-band interference. 73 Frank W3LPL ----- Original Message ----- From: "Eric Norris" To: "elecraft at mailman qth. net" Sent: Tuesday, June 23, 2020 9:32:04 PM Subject: [Elecraft] K4 Question My foaming at the mouth over the K4 has been tempered by it having less adjacent channel rejection than the K3 due to the different architecture--at least until the K4HD comes out. I understand this, and the reasons why. Thanks for your answers I know I have asked this question before, but I want to be more specific. My QRM neighbor is S9+65 db on my K3S S-meter. If he is blasting away on ft8 at 7074 kHz at that signal level, how would the plain K4 receiver perform at 7034 kHz on CW? Would there be AGC pumping, RX desense, or other degradation, or would I be able to carry on a CW qso unmolested like I can with my K3? What about an adjacent band like 3534 kHz or 10114 kHz? Or is the answer I have to wait for the K4HD? No speculation, please, I'm looking for a real-world or lab-world answer. Thanks and, 73 Eric WD6DBM ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From n6kr at elecraft.com Tue Jun 23 18:46:11 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 23 Jun 2020 15:46:11 -0700 Subject: [Elecraft] K4 Question In-Reply-To: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> Message-ID: Hi Eric, S9+65 dB is about -8 dBm. Off the top of my head, this is far, far below what a basic K4 or K4D can handle, artifact-free, in-band, without the need for attenuation or additional filtering. When I get back to the lab I'm going to set up exactly this condition and get back to you. Of course the out-of-band rejection is even higher. A number of K4s will be used extensively during FD this year, including mine. I'll be taking advantage of the K4's low current drain (for its class) by running mine from a KX2 11 volt battery pack (3x 18650 cells). For at least an hour or so :) 73, Wayne N6KR > From: "Eric Norris" > To: "elecraft at mailman qth. net" > Sent: Tuesday, June 23, 2020 9:32:04 PM > Subject: [Elecraft] K4 Question > > My foaming at the mouth over the K4 has been tempered by it having less > adjacent channel rejection than the K3 due to the different > architecture--at least until the K4HD comes out. I understand this, and > the reasons why. Thanks for your answers > > I know I have asked this question before, but I want to be more specific. > My QRM neighbor is S9+65 db on my K3S S-meter. If he is blasting away on > ft8 at 7074 kHz at that signal level, how would the plain K4 receiver > perform at 7034 kHz on CW? Would there be AGC pumping, RX desense, or > other degradation, or would I be able to carry on a CW qso unmolested like > I can with my K3? What about an adjacent band like 3534 kHz or 10114 kHz? > Or is the answer I have to wait for the K4HD? > > No speculation, please, I'm looking for a real-world or lab-world answer. > > Thanks and, > > 73 Eric WD6DBM From k5wa at comcast.net Tue Jun 23 19:15:04 2020 From: k5wa at comcast.net (K5WA) Date: Tue, 23 Jun 2020 18:15:04 -0500 Subject: [Elecraft] Elecraft] New Elecraft K4 has great Rx Audio on CW pileups, Message-ID: <0a0b01d649b4$214ccab0$63e66010$@comcast.net> Bob, Thanks for that recording but would you mind recording another pileup off the front headphone plug so we can see how a K4 really sounds without the MK2R?s weaknesses masking the K4? I finally had to throw my MK2R away because I never could get rid of the thumps. ? Thanks, Bob K5WA From hgchapoton at gmail.com Tue Jun 23 19:28:05 2020 From: hgchapoton at gmail.com (hg chapoton) Date: Tue, 23 Jun 2020 19:28:05 -0400 Subject: [Elecraft] Stainless hardware Message-ID: I've bought a lot from McMaster with never a problem. A defense manufacturer I used to work for also used them on occasion with no issues. If I need one or two real quick, the local hardware stores have a decent supply from a regional distributor that seems to be good stuff. The best general use grade is passivated 316. McMasters 18-8 has been adequate here with lots up in the air and no failures. In lieu of an anti-seize compound, I use blue Loctite. It provides the required friction relief along with its normal anti-vibration properties. Never had any galling with this and removal is not a problem, nor is reuse. I think the original poster wanted to mount coax connectors. The required #4 stuff doesn't seem as prone to galling, probably due to lower torque levels. Little stuff, #4/#6/#8 I use "dry" without problems. greg/na8v From donwilh at embarqmail.com Tue Jun 23 19:40:03 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 23 Jun 2020 19:40:03 -0400 Subject: [Elecraft] K2 after kat2 install Q7 & 8 check In-Reply-To: <450dc866-ee2e-1c40-842c-62b31d35a944@gmail.com> References: <450dc866-ee2e-1c40-842c-62b31d35a944@gmail.com> Message-ID: Russ, At first glance it would appear that you have shorted PA transistors (at least one of them) To address the problem, the first thing is to order the K2PAKIT from Elecraft. It contains matched PA transistors, new PA transistor mounting hardware if you have the older white standoffs, replacements for Q11 and Q13 if needed, and a 1/2 watt resistor for replacement of R50 if your K2 has the older 1/4 watt resistor - there are new thermal pads for the PA transistors in the kit. I strongly recommend that you proceed as follows: 1) Remove the heatsink - to keep from losing the PA mounting hardware, stick a 3/4 inch square of electrical tape over the screwheads - it can stick to the board and sides of T4. 2) Remove Q7 and Q8. If you do not have good desoldering tools, cut the leads near the body of the transistors and remove the leads one at a time. Clean up with solder wick and if solder remains in the holes, heat the solder pads and push it out with a wooden toothpick. 3) With A7 and Q8 removed, do a TUNE while measuring the voltage at the Q7 or Q8 base solder pads. The voltage should be between 0.60 and 0.64 volts. If it is not, replace Q11 and Q13. 4) Once you have established that the base voltage for Q7 and Q8 is in the correct range, then you are good to install Q7 and Q8. Use the new thermal pads and re-install the heatsink. Before powering on, check the resistance from the Q7 or Q8 collector to ground. It will climb as your DMM charges the electrolytic capacitors. If you see 1500 ohms or more, you should be 'good to go'. If you still see zero ohms, then remove the heatsink again and check the thermal pads. The heatsink could have some chards of metal on it, so hit it with some sandpaper. Look for pieces of metal embedded in the thermal pad material. You would be wise not to use the internal toothed lockwashers when reassembling because they can cause metal chips to be released. You can use split #4 lockwashers instead, but be certain to tighten them securely. 73, Don W3FPR From Lyn at LNAINC.com Tue Jun 23 19:50:42 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 23 Jun 2020 18:50:42 -0500 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <6E43A03C-6ECD-478A-B922-9CAC562F7C8B@me.com> References: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> <6E43A03C-6ECD-478A-B922-9CAC562F7C8B@me.com> Message-ID: <028301d649b9$1b5e9890$521bc9b0$@LNAINC.com> Nope. "Should be" is not how it works. I have discussed this with Support, and it would require constant polling ... which they cannot do. Once you turn it OFF with the front panel switch, it needs to be turned on the same way. After that, yes the utility is fully functional. 73 Lyn, W0LEN -----Original Message----- From: Jack Brindle [mailto:jackbrindle at me.com] Sent: Tuesday, June 23, 2020 5:16 PM To: Lyn at lnainc.com Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] KAT500 Remote software and KPA500 remote software Take another look. You should be able to power on/off the KPA500 using the front power button as well as through the KPA Utility. The Utility does a great job of detecting the KPA500?s current data rate whether it is on or off (the two rates may be different) and will communicate at the proper rate to power the amplifier on or off using the ON/OFF button in the Operate panel. Turning the back panel switch to the OFF position will, of course, disable the ability to power on the amplifier using wither the KPA Utility or the front panel pushbutton. 73! Jack, W6FB > On Jun 23, 2020, at 2:18 PM, Lyn Norstad wrote: > > I meant to follow up on this sooner, but ? so here?s what I found with the KPA500 and KPA Utility Rev 1.13.7.16. First, the KPA500 rear power switch must, of course, remain in the ON position at all times. > > > > Once the KPA500 has been powered on with the Front panel switch (and communications is set up properly between the computer and the KPA500), in order to have ON/OFF control from the utility app, the KPA500 must never be turned OFF from the front panel switch. > > > > It?s OK to use the other front panel controls (including STANDBY/OPERATE), just not the ON/OFF power button. > > > > 73 > > Lyn, W0LEN > > > > > > -----Original Message----- > From: Lyn Norstad [mailto:Lyn at LNAINC.com] > Sent: Tuesday, June 09, 2020 3:42 PM > To: 'Gordon LaPoint'; 'elecraft at mailman.qth.net' > Subject: RE: [Elecraft] KAT500 Remote software and KPA500 remote software > > > > If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. > > > > To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). > > > > In Windows 10, search "Startup Apps." > > > > 73 > > Lyn, W0LEN > > > > -----Original Message----- > > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint > > Sent: Tuesday, June 09, 2020 1:45 PM > > To: elecraft at mailman.qth.net > > Subject: [Elecraft] KAT500 Remote software and KPA500 remote software > > > > Can these remote software's be in host mode on startup? I run a remote > > and would like to have them connect to the hardware and be in host mode > > on boot of the computer. Right now I just log on remotely and start > > each one as needed. > > > > Thanks, > > > > Gordon - N1MGO > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From vk4tux at gmail.com Tue Jun 23 19:53:33 2020 From: vk4tux at gmail.com (Adrian) Date: Wed, 24 Jun 2020 09:53:33 +1000 Subject: [Elecraft] K4 Question In-Reply-To: References: Message-ID: An excessive strength FT8 signal is easy to remove with notch. On 24/6/20 7:32 am, Eric Norris wrote: > My foaming at the mouth over the K4 has been tempered by it having less > adjacent channel rejection than the K3 due to the different > architecture--at least until the K4HD comes out. I understand this, and > the reasons why. Thanks for your answers > > I know I have asked this question before, but I want to be more specific. > My QRM neighbor is S9+65 db on my K3S S-meter. If he is blasting away on > ft8 at 7074 kHz at that signal level, how would the plain K4 receiver > perform at 7034 kHz on CW? Would there be AGC pumping, RX desense, or > other degradation, or would I be able to carry on a CW qso unmolested like > I can with my K3? What about an adjacent band like 3534 kHz or 10114 kHz? > Or is the answer I have to wait for the K4HD? > > No speculation, please, I'm looking for a real-world or lab-world answer. > > Thanks and, > > 73 Eric WD6DBM > ______________________________________________________________ From rick.nk7i at gmail.com Tue Jun 23 19:58:43 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Tue, 23 Jun 2020 16:58:43 -0700 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <028301d649b9$1b5e9890$521bc9b0$@LNAINC.com> References: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> <6E43A03C-6ECD-478A-B922-9CAC562F7C8B@me.com> <028301d649b9$1b5e9890$521bc9b0$@LNAINC.com> Message-ID: <04c33b3d-8785-bb76-31d9-97da04dd1d11@gmail.com> Lyn, You can try restarting the utility; sometimes if you push the front buttons (power on/off, standby), the app gets out of sync for the KPA500. 73, Rick NK7I On 6/23/2020 4:50 PM, Lyn Norstad wrote: > Nope. "Should be" is not how it works. I have discussed this with Support, and it would require constant polling ... which they cannot do. > > Once you turn it OFF with the front panel switch, it needs to be turned on the same way. After that, yes the utility is fully functional. > > 73 > Lyn, W0LEN > > > > -----Original Message----- > From: Jack Brindle [mailto:jackbrindle at me.com] > Sent: Tuesday, June 23, 2020 5:16 PM > To: Lyn at lnainc.com > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KAT500 Remote software and KPA500 remote software > > Take another look. You should be able to power on/off the KPA500 using the front power button as well as through the KPA Utility. The Utility does a great job of detecting the KPA500?s current data rate whether it is on or off (the two rates may be different) and will communicate at the proper rate to power the amplifier on or off using the ON/OFF button in the Operate panel. > > Turning the back panel switch to the OFF position will, of course, disable the ability to power on the amplifier using wither the KPA Utility or the front panel pushbutton. > > 73! > Jack, W6FB > > >> On Jun 23, 2020, at 2:18 PM, Lyn Norstad wrote: >> >> I meant to follow up on this sooner, but ? so here?s what I found with the KPA500 and KPA Utility Rev 1.13.7.16. First, the KPA500 rear power switch must, of course, remain in the ON position at all times. >> >> >> >> Once the KPA500 has been powered on with the Front panel switch (and communications is set up properly between the computer and the KPA500), in order to have ON/OFF control from the utility app, the KPA500 must never be turned OFF from the front panel switch. >> >> >> >> It?s OK to use the other front panel controls (including STANDBY/OPERATE), just not the ON/OFF power button. >> >> >> >> 73 >> >> Lyn, W0LEN >> >> >> >> >> >> -----Original Message----- >> From: Lyn Norstad [mailto:Lyn at LNAINC.com] >> Sent: Tuesday, June 09, 2020 3:42 PM >> To: 'Gordon LaPoint'; 'elecraft at mailman.qth.net' >> Subject: RE: [Elecraft] KAT500 Remote software and KPA500 remote software >> >> >> >> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. >> >> >> >> To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). >> >> >> >> In Windows 10, search "Startup Apps." >> >> >> >> 73 >> >> Lyn, W0LEN >> >> >> >> -----Original Message----- >> >> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint >> >> Sent: Tuesday, June 09, 2020 1:45 PM >> >> To: elecraft at mailman.qth.net >> >> Subject: [Elecraft] KAT500 Remote software and KPA500 remote software >> >> >> >> Can these remote software's be in host mode on startup? I run a remote >> >> and would like to have them connect to the hardware and be in host mode >> >> on boot of the computer. Right now I just log on remotely and start >> >> each one as needed. >> >> >> >> Thanks, >> >> >> >> Gordon - N1MGO >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jackbrindle at me.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rick.nk7i at gmail.com From jim at audiosystemsgroup.com Tue Jun 23 20:49:00 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 23 Jun 2020 17:49:00 -0700 Subject: [Elecraft] K4 Question In-Reply-To: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> Message-ID: <3d9b1590-45f7-a19b-b85a-40b3af3b92fa@audiosystemsgroup.com> On 6/23/2020 3:27 PM, donovanf at starpower.net wrote: > We use more than a dozen K3 transceivers at the W3AO Field Day with > as many as four operating in the same band (CW, SSB, FT8 and GOTA SSB), > but not this year... What power level, Frank? 73, Jim K9YC From billamader at gmail.com Tue Jun 23 20:49:49 2020 From: billamader at gmail.com (K8TE) Date: Tue, 23 Jun 2020 17:49:49 -0700 (MST) Subject: [Elecraft] K4 Issue In-Reply-To: <46796185-a4ae-ebee-e418-c017a9a69987@embarqmail.com> References: <5ef0e252.1c69fb81.26839.b9fb@mx.google.com> <9921A9D3-E63F-4EF5-A229-BAF4BD34B5BC@widomaker.com> <029501d648f7$b1e141e0$15a3c5a0$@LNAINC.com> <46796185-a4ae-ebee-e418-c017a9a69987@embarqmail.com> Message-ID: <1592959789078-0.post@n2.nabble.com> I have a neighbor who lives about 500 ft away with a new IC-7300. I have told many people the IC-7300 is an interesting radio for $900-1,000, but it ain't no K3! For example, several years ago we had three K3 transceivers on 20m--CW, SSB, and GOTA. They were about 500 feet apart from each other. Unless we tuned within 5-10 kHz from another, we didn't know the other two were on the air until somebody turned of the SSB radio's power supply and the battery ran low (IMD). OTH, if my neighbor is on 20m or 40m with his barefoot IC-7300, I know it on my K3 (new synthesizers). He's on CW and I'm on SSB--I know he's on. His rig's phase noise covers the entire band! Fortunately, unless I pick the second harmonic, I don't hear him disturb 20m when he's on 40m. While good by itself and not on big antennas, especially during a contest, the IC-7300 will work for many hams. I experienced similar issues with my K3 and an IC-7600 several years ago at a different FD site. This weekend I head to Lubbock with my K3 to operate CW at a 2E station with an IC-7610. We will NOT operate on the same band! I will bring bandpass filters for both radios just in case. Listen for KS5Z, three old friends/farts having a fun, safe weekend. I hope many of you do the same. Good luck in the operating event (not a contest)! 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From jim at audiosystemsgroup.com Tue Jun 23 21:02:50 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 23 Jun 2020 18:02:50 -0700 Subject: [Elecraft] K4 Question In-Reply-To: References: Message-ID: On 6/23/2020 4:53 PM, Adrian wrote: > An excessive strength FT8 signal is easy to remove with notch. Yes, BUT -- the notch introduces phase shift, which can degrade decoding. K1JT recommends running the IF wide and letting WSJT-X separate signals. I DO strongly differ with the advice in the WSJT-X manual for setting levels. Instead, I recommend setting audio gains so that the green bar indicating audio level as close as possible to the top without it turning red on when strong signals are present. I find Slow AGC works well for me, because both the strongest signals AND my local noise vary widely. Why do I recommend this? Simple. The practical dynamic range of a 16-bit A/D is about 90 dB (96 dB theoretical, but linearity tends to degrade at the low end of the range); if there's a 50 dB over S9 signal in the passband and it's set to 78 dB on the green bar, we can decode signals 28 dB below S9. At 5 dB/S-unit, that's between S3 and S4. If the strongest signal is 40 dB over S9, we can almost get down to S1. This doesn't matter, of course, if your noise level is S8, but it matters a LOT if it's a lot lower. 73, Jim K9YC From vk4tux at gmail.com Tue Jun 23 21:10:57 2020 From: vk4tux at gmail.com (Adrian) Date: Wed, 24 Jun 2020 11:10:57 +1000 Subject: [Elecraft] K4 Question In-Reply-To: References: Message-ID: <6e46672d-bd85-4382-0b84-2dd41486fb84@gmail.com> On 24/6/20 11:02 am, Jim Brown wrote: > On 6/23/2020 4:53 PM, Adrian wrote: >> An excessive strength FT8 signal is easy to remove with notch. > > Yes, BUT -- the notch introduces phase shift, which can degrade > decoding.? K1JT recommends running the IF wide and letting WSJT-X > separate signals. Ok on that, My experience is that it allowed decode of my target RX., I did use narrow notch. > > I DO strongly differ with the advice in the WSJT-X manual for setting > levels. Instead, I recommend setting audio gains so that the green bar > indicating audio level as close as possible to the top without it > turning red on when strong signals are present. I find Slow AGC works > well for me, because both the strongest signals AND my local noise > vary widely. Yes I do that all possible gain and AGC turned off on low band use, with green as high as 80dB with no red seen , for good weak signal decode. Using low width roofing/dsp filtering around the signal boosts it to great extent, using width/shift to focus. From m.cresap at yahoo.com Tue Jun 23 21:23:13 2020 From: m.cresap at yahoo.com (M Cresap) Date: Wed, 24 Jun 2020 01:23:13 +0000 (UTC) Subject: [Elecraft] K4 Question In-Reply-To: <6e46672d-bd85-4382-0b84-2dd41486fb84@gmail.com> References: <6e46672d-bd85-4382-0b84-2dd41486fb84@gmail.com> Message-ID: <1395975559.2770465.1592961793342@mail.yahoo.com> Once any FT8 passband is digitized, filtered, and decimated in a K4, there should be no need to ever apply AGC - just pass the bits over to WSJT. The decimated bit stream may exceed 16 bits, so the WSJT input processor would have to be modified to accept the additional dynamic range. On Tuesday, June 23, 2020, 9:12:47 PM EDT, Adrian wrote: On 24/6/20 11:02 am, Jim Brown wrote: > On 6/23/2020 4:53 PM, Adrian wrote: >> An excessive strength FT8 signal is easy to remove with notch. > > Yes, BUT -- the notch introduces phase shift, which can degrade > decoding.? K1JT recommends running the IF wide and letting WSJT-X > separate signals. Ok on that, My experience is that it allowed decode of my target RX., I did use narrow notch. > > I DO strongly differ with the advice in the WSJT-X manual for setting > levels. Instead, I recommend setting audio gains so that the green bar > indicating audio level as close as possible to the top without it > turning red on when strong signals are present. I find Slow AGC works > well for me, because both the strongest signals AND my local noise > vary widely. Yes I do that all possible gain and AGC turned off on low band use, with green as high as 80dB with no red seen , for good weak signal decode. Using low width roofing/dsp filtering around the signal boosts it to great extent, using width/shift to focus. From jackbrindle at me.com Tue Jun 23 22:12:56 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 23 Jun 2020 19:12:56 -0700 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <028301d649b9$1b5e9890$521bc9b0$@LNAINC.com> References: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> <6E43A03C-6ECD-478A-B922-9CAC562F7C8B@me.com> <028301d649b9$1b5e9890$521bc9b0$@LNAINC.com> Message-ID: <8AE6DBAB-561E-493E-A560-48783E5E3098@me.com> Let's see if we can determine why you are seeing this behavior. What platform are you using (Window, Mac, Linux), and exactly what is the scenario and conditions you are seeing? In other words, please provide more info. I believe K6KR has provided a bit of additional info. He wrote the KPA Utility for Windows, and knows the computer side of things. I wrote the code for both the bootstrap loader and the main program in the KPA500. I tested all parts of the code operation for both bootstrap (which runs with front power off) and main firmware (runs with power ON) with both the Mac and Windows Utilities for each KPA500 firmware release as well as when the Utilities are released. In fact I tested it earlier today with both the original KPA500 and a newer one I bought a year ago. In all cases the KPA Utility was able to turn on and off the KPAs properly. With adequate information, we should be able to get things working properly for you. 73, Jack, W6FB Elecraft Engineering > On Jun 23, 2020, at 4:50 PM, Lyn Norstad wrote: > > Nope. "Should be" is not how it works. I have discussed this with Support, and it would require constant polling ... which they cannot do. > > Once you turn it OFF with the front panel switch, it needs to be turned on the same way. After that, yes the utility is fully functional. > > 73 > Lyn, W0LEN > > > > -----Original Message----- > From: Jack Brindle [mailto:jackbrindle at me.com] > Sent: Tuesday, June 23, 2020 5:16 PM > To: Lyn at lnainc.com > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KAT500 Remote software and KPA500 remote software > > Take another look. You should be able to power on/off the KPA500 using the front power button as well as through the KPA Utility. The Utility does a great job of detecting the KPA500?s current data rate whether it is on or off (the two rates may be different) and will communicate at the proper rate to power the amplifier on or off using the ON/OFF button in the Operate panel. > > Turning the back panel switch to the OFF position will, of course, disable the ability to power on the amplifier using wither the KPA Utility or the front panel pushbutton. > > 73! > Jack, W6FB > > >> On Jun 23, 2020, at 2:18 PM, Lyn Norstad wrote: >> >> I meant to follow up on this sooner, but ? so here?s what I found with the KPA500 and KPA Utility Rev 1.13.7.16. First, the KPA500 rear power switch must, of course, remain in the ON position at all times. >> >> >> >> Once the KPA500 has been powered on with the Front panel switch (and communications is set up properly between the computer and the KPA500), in order to have ON/OFF control from the utility app, the KPA500 must never be turned OFF from the front panel switch. >> >> >> >> It?s OK to use the other front panel controls (including STANDBY/OPERATE), just not the ON/OFF power button. >> >> >> >> 73 >> >> Lyn, W0LEN >> >> >> >> >> >> -----Original Message----- >> From: Lyn Norstad [mailto:Lyn at LNAINC.com] >> Sent: Tuesday, June 09, 2020 3:42 PM >> To: 'Gordon LaPoint'; 'elecraft at mailman.qth.net' >> Subject: RE: [Elecraft] KAT500 Remote software and KPA500 remote software >> >> >> >> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. >> >> >> >> To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). >> >> >> >> In Windows 10, search "Startup Apps." >> >> >> >> 73 >> >> Lyn, W0LEN >> >> >> >> -----Original Message----- >> >> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint >> >> Sent: Tuesday, June 09, 2020 1:45 PM >> >> To: elecraft at mailman.qth.net >> >> Subject: [Elecraft] KAT500 Remote software and KPA500 remote software >> >> >> >> Can these remote software's be in host mode on startup? I run a remote >> >> and would like to have them connect to the hardware and be in host mode >> >> on boot of the computer. Right now I just log on remotely and start >> >> each one as needed. >> >> >> >> Thanks, >> >> >> >> Gordon - N1MGO >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jackbrindle at me.com > > From jim at n7us.net Tue Jun 23 22:23:14 2020 From: jim at n7us.net (Jim McDonald) Date: Tue, 23 Jun 2020 21:23:14 -0500 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <8AE6DBAB-561E-493E-A560-48783E5E3098@me.com> References: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> <6E43A03C-6ECD-478A-B922-9CAC562F7C8B@me.com> <028301d649b9$1b5e9890$521bc9b0$@LNAINC.com> <8AE6DBAB-561E-493E-A560-48783E5E3098@me.com> Message-ID: <028701d649ce$6b86df20$42949d60$@n7us.net> I use VA2FSQ's Win4K3Suite, and it can control a KPA500/KPA1500, including turning it on and off. https://va2fsq.com/ Jim N7US -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Jack Brindle via Elecraft Sent: Tuesday, June 23, 2020 21:13 To: Lyn at LNAINC.com Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] KAT500 Remote software and KPA500 remote software Let's see if we can determine why you are seeing this behavior. What platform are you using (Window, Mac, Linux), and exactly what is the scenario and conditions you are seeing? In other words, please provide more info. I believe K6KR has provided a bit of additional info. He wrote the KPA Utility for Windows, and knows the computer side of things. I wrote the code for both the bootstrap loader and the main program in the KPA500. I tested all parts of the code operation for both bootstrap (which runs with front power off) and main firmware (runs with power ON) with both the Mac and Windows Utilities for each KPA500 firmware release as well as when the Utilities are released. In fact I tested it earlier today with both the original KPA500 and a newer one I bought a year ago. In all cases the KPA Utility was able to turn on and off the KPAs properly. With adequate information, we should be able to get things working properly for you. 73, Jack, W6FB Elecraft Engineering > On Jun 23, 2020, at 4:50 PM, Lyn Norstad wrote: > > Nope. "Should be" is not how it works. I have discussed this with Support, and it would require constant polling ... which they cannot do. > > Once you turn it OFF with the front panel switch, it needs to be turned on the same way. After that, yes the utility is fully functional. > > 73 > Lyn, W0LEN > > > > -----Original Message----- > From: Jack Brindle [mailto:jackbrindle at me.com] > Sent: Tuesday, June 23, 2020 5:16 PM > To: Lyn at lnainc.com > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KAT500 Remote software and KPA500 remote > software > > Take another look. You should be able to power on/off the KPA500 using the front power button as well as through the KPA Utility. The Utility does a great job of detecting the KPA500?s current data rate whether it is on or off (the two rates may be different) and will communicate at the proper rate to power the amplifier on or off using the ON/OFF button in the Operate panel. > > Turning the back panel switch to the OFF position will, of course, disable the ability to power on the amplifier using wither the KPA Utility or the front panel pushbutton. > > 73! > Jack, W6FB > > >> On Jun 23, 2020, at 2:18 PM, Lyn Norstad wrote: >> >> I meant to follow up on this sooner, but ? so here?s what I found with the KPA500 and KPA Utility Rev 1.13.7.16. First, the KPA500 rear power switch must, of course, remain in the ON position at all times. >> >> >> >> Once the KPA500 has been powered on with the Front panel switch (and communications is set up properly between the computer and the KPA500), in order to have ON/OFF control from the utility app, the KPA500 must never be turned OFF from the front panel switch. >> >> >> >> It?s OK to use the other front panel controls (including STANDBY/OPERATE), just not the ON/OFF power button. >> >> >> >> 73 >> >> Lyn, W0LEN >> >> >> >> >> >> -----Original Message----- >> From: Lyn Norstad [mailto:Lyn at LNAINC.com] >> Sent: Tuesday, June 09, 2020 3:42 PM >> To: 'Gordon LaPoint'; 'elecraft at mailman.qth.net' >> Subject: RE: [Elecraft] KAT500 Remote software and KPA500 remote >> software >> >> >> >> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. >> >> >> >> To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). >> >> >> >> In Windows 10, search "Startup Apps." >> >> >> >> 73 >> >> Lyn, W0LEN >> >> >> >> -----Original Message----- >> >> From: elecraft-bounces at mailman.qth.net >> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint >> >> Sent: Tuesday, June 09, 2020 1:45 PM >> >> To: elecraft at mailman.qth.net >> >> Subject: [Elecraft] KAT500 Remote software and KPA500 remote software >> >> >> >> Can these remote software's be in host mode on startup? I run a >> remote >> >> and would like to have them connect to the hardware and be in host >> mode >> >> on boot of the computer. Right now I just log on remotely and start >> >> each one as needed. >> >> >> >> Thanks, >> >> >> >> Gordon - N1MGO From jackbrindle at me.com Tue Jun 23 22:35:25 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 23 Jun 2020 19:35:25 -0700 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <8AE6DBAB-561E-493E-A560-48783E5E3098@me.com> References: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> <6E43A03C-6ECD-478A-B922-9CAC562F7C8B@me.com> <028301d649b9$1b5e9890$521bc9b0$@LNAINC.com> <8AE6DBAB-561E-493E-A560-48783E5E3098@me.com> Message-ID: <407867EA-FB9C-4C75-8D46-F13C4423FF1F@me.com> A bit more information about how things work in the KPA500. The boot loader runs on back-panel power-on or when the amplifier is powered off from the front panel (or by command). It runs in power-down state, sleeping the processor as much as possible. It looks for inputs from the front panel power button (which is in parallel with a pin on the AUX/IO port) and the serial port. The serial port has an abbreviated command set (described in the KPA500 Programmer?s Reference) - the memory segment for bootstrap loader is full, and there was not enough space to implement a full command set style protocol. The portion the boot loader is fixed at 38400 bps. Reception of a ?P? character causes the loader to check firmware memory, and if that check is positive it moves execution to the main firmware, where the amplifier is initialized and brought on-line. If the user has set a different data rate, it will be changed at this point. Because the boot command structure is different from the main commands it is possible for the KPA Utility (or any control program) to get out of sync with the KPA if the user powers down (or up) the KPA from the front panel power button. The KPA Utility usually does a very good job of catching the situation and moving to the proper mode. There is a slight difference between the three versions - W4SMT has done a very good job of catching this in the Mac and Linux versions, to the point where missing the change is very rare (as far as I have seen). I will also say the the Window?s version is also rare at missing this, but apparently there are times when it may miss things as Dick has stated. In any case, as I noted, we test this scenario extensively. It does usually work, as I noted previously. We just need to determine why Lyn is seeing it fail. 73! Jack, W6FB > On Jun 23, 2020, at 7:12 PM, Jack Brindle via Elecraft wrote: > > Let's see if we can determine why you are seeing this behavior. What platform are you using (Window, Mac, Linux), and exactly what is the scenario and conditions you are seeing? In other words, please provide more info. I believe K6KR has provided a bit of additional info. He wrote the KPA Utility for Windows, and knows the computer side of things. > > I wrote the code for both the bootstrap loader and the main program in the KPA500. I tested all parts of the code operation for both bootstrap (which runs with front power off) and main firmware (runs with power ON) with both the Mac and Windows Utilities for each KPA500 firmware release as well as when the Utilities are released. In fact I tested it earlier today with both the original KPA500 and a newer one I bought a year ago. In all cases the KPA Utility was able to turn on and off the KPAs properly. > > With adequate information, we should be able to get things working properly for you. > > 73, > Jack, W6FB > Elecraft Engineering > > >> On Jun 23, 2020, at 4:50 PM, Lyn Norstad wrote: >> >> Nope. "Should be" is not how it works. I have discussed this with Support, and it would require constant polling ... which they cannot do. >> >> Once you turn it OFF with the front panel switch, it needs to be turned on the same way. After that, yes the utility is fully functional. >> >> 73 >> Lyn, W0LEN >> >> >> >> -----Original Message----- >> From: Jack Brindle [mailto:jackbrindle at me.com] >> Sent: Tuesday, June 23, 2020 5:16 PM >> To: Lyn at lnainc.com >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] KAT500 Remote software and KPA500 remote software >> >> Take another look. You should be able to power on/off the KPA500 using the front power button as well as through the KPA Utility. The Utility does a great job of detecting the KPA500?s current data rate whether it is on or off (the two rates may be different) and will communicate at the proper rate to power the amplifier on or off using the ON/OFF button in the Operate panel. >> >> Turning the back panel switch to the OFF position will, of course, disable the ability to power on the amplifier using wither the KPA Utility or the front panel pushbutton. >> >> 73! >> Jack, W6FB >> >> >>> On Jun 23, 2020, at 2:18 PM, Lyn Norstad wrote: >>> >>> I meant to follow up on this sooner, but ? so here?s what I found with the KPA500 and KPA Utility Rev 1.13.7.16. First, the KPA500 rear power switch must, of course, remain in the ON position at all times. >>> >>> >>> >>> Once the KPA500 has been powered on with the Front panel switch (and communications is set up properly between the computer and the KPA500), in order to have ON/OFF control from the utility app, the KPA500 must never be turned OFF from the front panel switch. >>> >>> >>> >>> It?s OK to use the other front panel controls (including STANDBY/OPERATE), just not the ON/OFF power button. >>> >>> >>> >>> 73 >>> >>> Lyn, W0LEN >>> >>> >>> >>> >>> >>> -----Original Message----- >>> From: Lyn Norstad [mailto:Lyn at LNAINC.com] >>> Sent: Tuesday, June 09, 2020 3:42 PM >>> To: 'Gordon LaPoint'; 'elecraft at mailman.qth.net' >>> Subject: RE: [Elecraft] KAT500 Remote software and KPA500 remote software >>> >>> >>> >>> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. >>> >>> >>> >>> To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). >>> >>> >>> >>> In Windows 10, search "Startup Apps." >>> >>> >>> >>> 73 >>> >>> Lyn, W0LEN >>> >>> >>> >>> -----Original Message----- >>> >>> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint >>> >>> Sent: Tuesday, June 09, 2020 1:45 PM >>> >>> To: elecraft at mailman.qth.net >>> >>> Subject: [Elecraft] KAT500 Remote software and KPA500 remote software >>> >>> >>> >>> Can these remote software's be in host mode on startup? I run a remote >>> >>> and would like to have them connect to the hardware and be in host mode >>> >>> on boot of the computer. Right now I just log on remotely and start >>> >>> each one as needed. >>> >>> >>> >>> Thanks, >>> >>> >>> >>> Gordon - N1MGO >>> >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to jackbrindle at me.com >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From n6kr at elecraft.com Tue Jun 23 23:16:41 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 23 Jun 2020 20:16:41 -0700 Subject: [Elecraft] K4 Question In-Reply-To: References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> Message-ID: <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> Hi Eric, I did a quick test using my home lab to simulate a possible FD scenario. For this test I set up a K4D and a K3S with their antenna jacks connected directly together through a high-power attenuator. Receiver preamps were off. With this arrangement, the RX noise floor is minimized since there's no actual antenna involved. I set mutual attenuation to 30 dB, a rough estimate of the path loss using dipoles 500' apart at 7 MHz. This is a pretty wild guess, though. Loss could be much higher if the antennas were oriented to avoid coupling, and it'll vary with frequency, terrain, actual distance, etc. Of course path loss could be lower with gain antennas at either or both ends, aimed at the other. (A situation generally avoided at FD.) While transmitting with the K4D at 100 W and receiving with the K3S, I found I was engaging the K3S's carrier-operated relay. This is evidence that the path loss probably is higher than 30 dB in real-world scenarios. I dropped to 10 W on both rigs (10 dB down from 100 W) to avoid the confound. I then coupled in a weak signal at the equivalent of about S2 (-113 dBm) as indicated on both receivers. When keying one rig, there was no evidence of desensing of this signal at the other, and only a very slight observed increase in the noise floor (as indicated by the respective panadapters). Yes, the two radios have entirely different architectures. Each has pros and cons. With an SDR like the K4, the fundamental limit on narrowband TX noise performance is the DAC. The K3S, on the other hand, has to shoehorn its 8 MHz IF transmit signal through a narrow crystal filter, adding ripple and group delay to complex signals (like voice and data). It also exhibits a characteristic "pedestal" of 15 kHz DAC noise that sits maybe 15 to 20 dB above the wideband noise floor. When it comes to CW keying bandwidth, both the K3S and K4 have essentially identical (and excellent) performance due to an optimally shaped keying envelope. 73, Wayne N6KR > On Jun 23, 2020, at 3:46 PM, Wayne Burdick wrote: > > Hi Eric, > > S9+65 dB is about -8 dBm. Off the top of my head, this is far, far below what a basic K4 or K4D can handle, artifact-free, in-band, without the need for attenuation or additional filtering. When I get back to the lab I'm going to set up exactly this condition and get back to you. > > Of course the out-of-band rejection is even higher. > > A number of K4s will be used extensively during FD this year, including mine. I'll be taking advantage of the K4's low current drain (for its class) by running mine from a KX2 11 volt battery pack (3x 18650 cells). For at least an hour or so :) > > 73, > Wayne > N6KR > > >> From: "Eric Norris" >> To: "elecraft at mailman qth. net" >> Sent: Tuesday, June 23, 2020 9:32:04 PM >> Subject: [Elecraft] K4 Question >> >> My foaming at the mouth over the K4 has been tempered by it having less >> adjacent channel rejection than the K3 due to the different >> architecture--at least until the K4HD comes out. I understand this, and >> the reasons why. Thanks for your answers >> >> I know I have asked this question before, but I want to be more specific. >> My QRM neighbor is S9+65 db on my K3S S-meter. If he is blasting away on >> ft8 at 7074 kHz at that signal level, how would the plain K4 receiver >> perform at 7034 kHz on CW? Would there be AGC pumping, RX desense, or >> other degradation, or would I be able to carry on a CW qso unmolested like >> I can with my K3? What about an adjacent band like 3534 kHz or 10114 kHz? >> Or is the answer I have to wait for the K4HD? >> >> No speculation, please, I'm looking for a real-world or lab-world answer. >> >> Thanks and, >> >> 73 Eric WD6DBM > > > > From n6kr at elecraft.com Tue Jun 23 23:38:59 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 23 Jun 2020 20:38:59 -0700 Subject: [Elecraft] K4 Question In-Reply-To: <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> Message-ID: <1BE5DA36-E8F3-4161-A8D5-CA556153D2BA@elecraft.com> I should have mentioned that with 30 dB simulated path loss and 10 W TX, the received signal at each end is the equivalent of about +10 dBm, or "S9+83 dB". FWIW :) 73, Wayne N6KR > On Jun 23, 2020, at 8:16 PM, Wayne Burdick wrote: > > Hi Eric, > > I did a quick test using my home lab to simulate a possible FD scenario. > > For this test I set up a K4D and a K3S with their antenna jacks connected directly together through a high-power attenuator. Receiver preamps were off. With this arrangement, the RX noise floor is minimized since there's no actual antenna involved. > > I set mutual attenuation to 30 dB, a rough estimate of the path loss using dipoles 500' apart at 7 MHz. This is a pretty wild guess, though. Loss could be much higher if the antennas were oriented to avoid coupling, and it'll vary with frequency, terrain, actual distance, etc. Of course path loss could be lower with gain antennas at either or both ends, aimed at the other. (A situation generally avoided at FD.) > > While transmitting with the K4D at 100 W and receiving with the K3S, I found I was engaging the K3S's carrier-operated relay. This is evidence that the path loss probably is higher than 30 dB in real-world scenarios. I dropped to 10 W on both rigs (10 dB down from 100 W) to avoid the confound. > > I then coupled in a weak signal at the equivalent of about S2 (-113 dBm) as indicated on both receivers. When keying one rig, there was no evidence of desensing of this signal at the other, and only a very slight observed increase in the noise floor (as indicated by the respective panadapters). > > Yes, the two radios have entirely different architectures. Each has pros and cons. > > With an SDR like the K4, the fundamental limit on narrowband TX noise performance is the DAC. The K3S, on the other hand, has to shoehorn its 8 MHz IF transmit signal through a narrow crystal filter, adding ripple and group delay to complex signals (like voice and data). It also exhibits a characteristic "pedestal" of 15 kHz DAC noise that sits maybe 15 to 20 dB above the wideband noise floor. > > When it comes to CW keying bandwidth, both the K3S and K4 have essentially identical (and excellent) performance due to an optimally shaped keying envelope. > > 73, > Wayne > N6KR > > > >> On Jun 23, 2020, at 3:46 PM, Wayne Burdick wrote: >> >> Hi Eric, >> >> S9+65 dB is about -8 dBm. Off the top of my head, this is far, far below what a basic K4 or K4D can handle, artifact-free, in-band, without the need for attenuation or additional filtering. When I get back to the lab I'm going to set up exactly this condition and get back to you. >> >> Of course the out-of-band rejection is even higher. >> >> A number of K4s will be used extensively during FD this year, including mine. I'll be taking advantage of the K4's low current drain (for its class) by running mine from a KX2 11 volt battery pack (3x 18650 cells). For at least an hour or so :) >> >> 73, >> Wayne >> N6KR >> >> >>> From: "Eric Norris" >>> To: "elecraft at mailman qth. net" >>> Sent: Tuesday, June 23, 2020 9:32:04 PM >>> Subject: [Elecraft] K4 Question >>> >>> My foaming at the mouth over the K4 has been tempered by it having less >>> adjacent channel rejection than the K3 due to the different >>> architecture--at least until the K4HD comes out. I understand this, and >>> the reasons why. Thanks for your answers >>> >>> I know I have asked this question before, but I want to be more specific. >>> My QRM neighbor is S9+65 db on my K3S S-meter. If he is blasting away on >>> ft8 at 7074 kHz at that signal level, how would the plain K4 receiver >>> perform at 7034 kHz on CW? Would there be AGC pumping, RX desense, or >>> other degradation, or would I be able to carry on a CW qso unmolested like >>> I can with my K3? What about an adjacent band like 3534 kHz or 10114 kHz? >>> Or is the answer I have to wait for the K4HD? >>> >>> No speculation, please, I'm looking for a real-world or lab-world answer. >>> >>> Thanks and, >>> >>> 73 Eric WD6DBM >> >> >> >> > From jim at audiosystemsgroup.com Wed Jun 24 00:02:47 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 23 Jun 2020 21:02:47 -0700 Subject: [Elecraft] K4 Issue In-Reply-To: <1592959789078-0.post@n2.nabble.com> References: <5ef0e252.1c69fb81.26839.b9fb@mx.google.com> <9921A9D3-E63F-4EF5-A229-BAF4BD34B5BC@widomaker.com> <029501d648f7$b1e141e0$15a3c5a0$@LNAINC.com> <46796185-a4ae-ebee-e418-c017a9a69987@embarqmail.com> <1592959789078-0.post@n2.nabble.com> Message-ID: On 6/23/2020 5:49 PM, K8TE wrote: > I experienced similar issues with my K3 and an IC-7600 several years ago at > a different FD site. A contester neighbor ran an IC7600 into a legal limit amp. 15 miles away, he chewed up almost 20 kHz of whatever band he was on running CW, and he was always running. He gave K6XX as much trouble as he gave me. it was that way for more than five years. XX and I can work 500 Hz apart on CW when one of us is running and the other S&P. 73, Jim K9YC From frantz at pwpconsult.com Wed Jun 24 00:22:09 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Wed, 24 Jun 2020 00:22:09 -0400 Subject: [Elecraft] K4 Issue In-Reply-To: Message-ID: West Valley Amateur Radio Association has had similar results running category nAB for large n (10-15). We run 5 watts and use K3, K3S, KX3 and Flex radios. We take care in our antenna setup to put the antennas in each other's null area. When we have problems, it is due to batteries running down raising the IMD. Swapping in a new battery is the cure. 73 Bill AE6JV On 6/23/20 at 12:02 AM, jim at audiosystemsgroup.com (Jim Brown) wrote: >On 6/23/2020 5:49 PM, K8TE wrote: >>I experienced similar issues with my K3 and an IC-7600 several years ago at >>a different FD site. > >A contester neighbor ran an IC7600 into a legal limit amp. 15 >miles away, he chewed up almost 20 kHz of whatever band he was >on running CW, and he was always running. He gave K6XX as much >trouble as he gave me. it was that way for more than five >years. XX and I can work 500 Hz apart on CW when one of us is >running and the other S&P. ----------------------------------------------------------------------- Bill Frantz |Security, like correctness, is| Periwinkle (408)348-7900 |not an add-on feature. - Attr-| 150 Rivermead Rd #235 www.pwpconsult.com |ibuted to Andrew Tanenbaum | Peterborough, NH 03458 From dxdx at optonline.net Wed Jun 24 01:43:29 2020 From: dxdx at optonline.net (Tony) Date: Wed, 24 Jun 2020 01:43:29 -0400 Subject: [Elecraft] New Heil HM10 XD Microphone - Poor Design? Message-ID: All: I purchased the new Heil HM-10 dual element microphone thinking it would perform as well as my old HM-10 which has the HC4 and HC5 mic elements. Unfortunately, that's not the case and reason seems to be the way the new mic was designed. The mic elements are at a 45 degree angle and placed much further away from the windscreen compared to the old mic. The result is that the new mic requires near maximum gain (maximum with some rigs) to set the ALC properly, even when you're up close to the mic. By comparison, the early HM-10 faces it's elements forward and close to the windscreen so the mic requires A LOT less gain which results in much better overall performance. The elements on the new HM-10 have individual windscreens as well and that seems to add further restriction. The HC4 / HC5 elements on the old mic have no additional windscreens. The good news is that Heil did a great job duplicating the HC4 / HC5 frequency response so the new elements produce the great articulation the old elements are known for. The problem with the new mic (as I see it) is it's physical design. Has anyone else compared the new HM-10 XD to the old HM-10 with their K3S or any other transceivers? Tony -K2MO From donovanf at starpower.net Wed Jun 24 01:55:45 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Wed, 24 Jun 2020 01:55:45 -0400 (EDT) Subject: [Elecraft] K4 Question In-Reply-To: <3d9b1590-45f7-a19b-b85a-40b3af3b92fa@audiosystemsgroup.com> Message-ID: <1089701611.4214343.1592978145133.JavaMail.root@starpower.net> Hi Jim 100 watts. Key to our success is the end-to-end alignment of our 3 element Yagis 73 Frank W3LPL ----- Original Message ----- From: "Jim Brown" To: elecraft at mailman.qth.net Sent: Wednesday, June 24, 2020 12:49:00 AM Subject: Re: [Elecraft] K4 Question On 6/23/2020 3:27 PM, donovanf at starpower.net wrote: > We use more than a dozen K3 transceivers at the W3AO Field Day with > as many as four operating in the same band (CW, SSB, FT8 and GOTA SSB), > but not this year... What power level, Frank? 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From k2vco.vic at gmail.com Wed Jun 24 02:14:02 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Wed, 24 Jun 2020 09:14:02 +0300 Subject: [Elecraft] K4 Question In-Reply-To: <1BE5DA36-E8F3-4161-A8D5-CA556153D2BA@elecraft.com> References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> <1BE5DA36-E8F3-4161-A8D5-CA556153D2BA@elecraft.com> Message-ID: Well, that would certainly be enough for me. I have two loud line-of-sight neighbors, but they don't hit +10 dBm. Unfortunately they have "dirty" transceivers, so it doesn't matter. I suppose I should buy them K4s. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 24/06/2020 6:38, Wayne Burdick wrote: > I should have mentioned that with 30 dB simulated path loss and 10 W TX, the received signal at each end is the equivalent of about +10 dBm, or "S9+83 dB". FWIW :) > > 73, > Wayne > N6KR > > >> On Jun 23, 2020, at 8:16 PM, Wayne Burdick wrote: >> >> Hi Eric, >> >> I did a quick test using my home lab to simulate a possible FD scenario. >> >> For this test I set up a K4D and a K3S with their antenna jacks connected directly together through a high-power attenuator. Receiver preamps were off. With this arrangement, the RX noise floor is minimized since there's no actual antenna involved. >> >> I set mutual attenuation to 30 dB, a rough estimate of the path loss using dipoles 500' apart at 7 MHz. This is a pretty wild guess, though. Loss could be much higher if the antennas were oriented to avoid coupling, and it'll vary with frequency, terrain, actual distance, etc. Of course path loss could be lower with gain antennas at either or both ends, aimed at the other. (A situation generally avoided at FD.) >> >> While transmitting with the K4D at 100 W and receiving with the K3S, I found I was engaging the K3S's carrier-operated relay. This is evidence that the path loss probably is higher than 30 dB in real-world scenarios. I dropped to 10 W on both rigs (10 dB down from 100 W) to avoid the confound. >> >> I then coupled in a weak signal at the equivalent of about S2 (-113 dBm) as indicated on both receivers. When keying one rig, there was no evidence of desensing of this signal at the other, and only a very slight observed increase in the noise floor (as indicated by the respective panadapters). >> >> Yes, the two radios have entirely different architectures. Each has pros and cons. >> >> With an SDR like the K4, the fundamental limit on narrowband TX noise performance is the DAC. The K3S, on the other hand, has to shoehorn its 8 MHz IF transmit signal through a narrow crystal filter, adding ripple and group delay to complex signals (like voice and data). It also exhibits a characteristic "pedestal" of 15 kHz DAC noise that sits maybe 15 to 20 dB above the wideband noise floor. >> >> When it comes to CW keying bandwidth, both the K3S and K4 have essentially identical (and excellent) performance due to an optimally shaped keying envelope. >> >> 73, >> Wayne >> N6KR From norrislawfirm2 at gmail.com Wed Jun 24 07:54:37 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Wed, 24 Jun 2020 04:54:37 -0700 Subject: [Elecraft] K4 Question In-Reply-To: <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> Message-ID: Hi Wayne, How far apart in frequency were the TX and RX signals into the respective radios? My guess is my neighbor is about 500ft away, but I will measure it with a gps. He has never tripped my K3 or K3S COR when we are on the same qrg. Thanks! 73 Eric WD6DBM On Tue, Jun 23, 2020, 8:16 PM Wayne Burdick wrote: > Hi Eric, > > I did a quick test using my home lab to simulate a possible FD scenario. > > For this test I set up a K4D and a K3S with their antenna jacks connected > directly together through a high-power attenuator. Receiver preamps were > off. With this arrangement, the RX noise floor is minimized since there's > no actual antenna involved. > > I set mutual attenuation to 30 dB, a rough estimate of the path loss using > dipoles 500' apart at 7 MHz. This is a pretty wild guess, though. Loss > could be much higher if the antennas were oriented to avoid coupling, and > it'll vary with frequency, terrain, actual distance, etc. Of course path > loss could be lower with gain antennas at either or both ends, aimed at the > other. (A situation generally avoided at FD.) > > While transmitting with the K4D at 100 W and receiving with the K3S, I > found I was engaging the K3S's carrier-operated relay. This is evidence > that the path loss probably is higher than 30 dB in real-world scenarios. I > dropped to 10 W on both rigs (10 dB down from 100 W) to avoid the confound. > > I then coupled in a weak signal at the equivalent of about S2 (-113 dBm) > as indicated on both receivers. When keying one rig, there was no evidence > of desensing of this signal at the other, and only a very slight observed > increase in the noise floor (as indicated by the respective panadapters). > > Yes, the two radios have entirely different architectures. Each has pros > and cons. > > With an SDR like the K4, the fundamental limit on narrowband TX noise > performance is the DAC. The K3S, on the other hand, has to shoehorn its 8 > MHz IF transmit signal through a narrow crystal filter, adding ripple and > group delay to complex signals (like voice and data). It also exhibits a > characteristic "pedestal" of 15 kHz DAC noise that sits maybe 15 to 20 dB > above the wideband noise floor. > > When it comes to CW keying bandwidth, both the K3S and K4 have essentially > identical (and excellent) performance due to an optimally shaped keying > envelope. > > 73, > Wayne > N6KR > > > > > On Jun 23, 2020, at 3:46 PM, Wayne Burdick wrote: > > > > Hi Eric, > > > > S9+65 dB is about -8 dBm. Off the top of my head, this is far, far below > what a basic K4 or K4D can handle, artifact-free, in-band, without the need > for attenuation or additional filtering. When I get back to the lab I'm > going to set up exactly this condition and get back to you. > > > > Of course the out-of-band rejection is even higher. > > > > A number of K4s will be used extensively during FD this year, including > mine. I'll be taking advantage of the K4's low current drain (for its > class) by running mine from a KX2 11 volt battery pack (3x 18650 cells). > For at least an hour or so :) > > > > 73, > > Wayne > > N6KR > > > > > >> From: "Eric Norris" > >> To: "elecraft at mailman qth. net" > >> Sent: Tuesday, June 23, 2020 9:32:04 PM > >> Subject: [Elecraft] K4 Question > >> > >> My foaming at the mouth over the K4 has been tempered by it having less > >> adjacent channel rejection than the K3 due to the different > >> architecture--at least until the K4HD comes out. I understand this, and > >> the reasons why. Thanks for your answers > >> > >> I know I have asked this question before, but I want to be more > specific. > >> My QRM neighbor is S9+65 db on my K3S S-meter. If he is blasting away > on > >> ft8 at 7074 kHz at that signal level, how would the plain K4 receiver > >> perform at 7034 kHz on CW? Would there be AGC pumping, RX desense, or > >> other degradation, or would I be able to carry on a CW qso unmolested > like > >> I can with my K3? What about an adjacent band like 3534 kHz or 10114 > kHz? > >> Or is the answer I have to wait for the K4HD? > >> > >> No speculation, please, I'm looking for a real-world or lab-world > answer. > >> > >> Thanks and, > >> > >> 73 Eric WD6DBM > > > > > > > > > > From norrislawfirm2 at gmail.com Wed Jun 24 08:01:03 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Wed, 24 Jun 2020 05:01:03 -0700 Subject: [Elecraft] K4 Question In-Reply-To: <1BE5DA36-E8F3-4161-A8D5-CA556153D2BA@elecraft.com> References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> <1BE5DA36-E8F3-4161-A8D5-CA556153D2BA@elecraft.com> Message-ID: Hi Wayne, That gives me almost exactly the overhead I need if my neighbor buys an amp--or puts up a beam. Thanks! 73 Eric WD6DBM On Tue, Jun 23, 2020, 8:39 PM Wayne Burdick wrote: > I should have mentioned that with 30 dB simulated path loss and 10 W TX, > the received signal at each end is the equivalent of about +10 dBm, or > "S9+83 dB". FWIW :) > > 73, > Wayne > N6KR > > > > On Jun 23, 2020, at 8:16 PM, Wayne Burdick wrote: > > > > Hi Eric, > > > > I did a quick test using my home lab to simulate a possible FD scenario. > > > > For this test I set up a K4D and a K3S with their antenna jacks > connected directly together through a high-power attenuator. Receiver > preamps were off. With this arrangement, the RX noise floor is minimized > since there's no actual antenna involved. > > > > I set mutual attenuation to 30 dB, a rough estimate of the path loss > using dipoles 500' apart at 7 MHz. This is a pretty wild guess, though. > Loss could be much higher if the antennas were oriented to avoid coupling, > and it'll vary with frequency, terrain, actual distance, etc. Of course > path loss could be lower with gain antennas at either or both ends, aimed > at the other. (A situation generally avoided at FD.) > > > > While transmitting with the K4D at 100 W and receiving with the K3S, I > found I was engaging the K3S's carrier-operated relay. This is evidence > that the path loss probably is higher than 30 dB in real-world scenarios. I > dropped to 10 W on both rigs (10 dB down from 100 W) to avoid the confound. > > > > I then coupled in a weak signal at the equivalent of about S2 (-113 dBm) > as indicated on both receivers. When keying one rig, there was no evidence > of desensing of this signal at the other, and only a very slight observed > increase in the noise floor (as indicated by the respective panadapters). > > > > Yes, the two radios have entirely different architectures. Each has pros > and cons. > > > > With an SDR like the K4, the fundamental limit on narrowband TX noise > performance is the DAC. The K3S, on the other hand, has to shoehorn its 8 > MHz IF transmit signal through a narrow crystal filter, adding ripple and > group delay to complex signals (like voice and data). It also exhibits a > characteristic "pedestal" of 15 kHz DAC noise that sits maybe 15 to 20 dB > above the wideband noise floor. > > > > When it comes to CW keying bandwidth, both the K3S and K4 have > essentially identical (and excellent) performance due to an optimally > shaped keying envelope. > > > > 73, > > Wayne > > N6KR > > > > > > > >> On Jun 23, 2020, at 3:46 PM, Wayne Burdick wrote: > >> > >> Hi Eric, > >> > >> S9+65 dB is about -8 dBm. Off the top of my head, this is far, far > below what a basic K4 or K4D can handle, artifact-free, in-band, without > the need for attenuation or additional filtering. When I get back to the > lab I'm going to set up exactly this condition and get back to you. > >> > >> Of course the out-of-band rejection is even higher. > >> > >> A number of K4s will be used extensively during FD this year, including > mine. I'll be taking advantage of the K4's low current drain (for its > class) by running mine from a KX2 11 volt battery pack (3x 18650 cells). > For at least an hour or so :) > >> > >> 73, > >> Wayne > >> N6KR > >> > >> > >>> From: "Eric Norris" > >>> To: "elecraft at mailman qth. net" > >>> Sent: Tuesday, June 23, 2020 9:32:04 PM > >>> Subject: [Elecraft] K4 Question > >>> > >>> My foaming at the mouth over the K4 has been tempered by it having > less > >>> adjacent channel rejection than the K3 due to the different > >>> architecture--at least until the K4HD comes out. I understand this, > and > >>> the reasons why. Thanks for your answers > >>> > >>> I know I have asked this question before, but I want to be more > specific. > >>> My QRM neighbor is S9+65 db on my K3S S-meter. If he is blasting away > on > >>> ft8 at 7074 kHz at that signal level, how would the plain K4 receiver > >>> perform at 7034 kHz on CW? Would there be AGC pumping, RX desense, or > >>> other degradation, or would I be able to carry on a CW qso unmolested > like > >>> I can with my K3? What about an adjacent band like 3534 kHz or 10114 > kHz? > >>> Or is the answer I have to wait for the K4HD? > >>> > >>> No speculation, please, I'm looking for a real-world or lab-world > answer. > >>> > >>> Thanks and, > >>> > >>> 73 Eric WD6DBM > >> > >> > >> > >> > > > > From mbaileycrna at gmail.com Wed Jun 24 08:44:40 2020 From: mbaileycrna at gmail.com (Morgan Bailey) Date: Wed, 24 Jun 2020 07:44:40 -0500 Subject: [Elecraft] New Heil HM10 XD Microphone - Poor Design? In-Reply-To: References: Message-ID: I quit using Heil products. Many of the ear muffs rotted off after one sweaty session at FD. I switched over to a $29.99 Logitec boom mic computer headset with 1/8 plugs. I figured it would break easily, I was wrong, I am still using it after 7 years and many sweaty operating conditions, FD, Special events, POTA, etc. Never a problem and my voice is very natural and I regularly get great sound reports from people that know my voice.On the K3s with factory defaults, I just leave the equalization sliders alone and I am good to go. I have used the same headset traveling playing computer games in hotel rooms for 10 years. Both my son and I abandon Heil products because of their product construction and reliability issues. The computer gaming manufactures understand what it takes to make a great comfortable headset and Bob Heil could take lessons from them. For instance, cloth ear muff covering, braided nylon cable coverings, easy swivel phones on the headband, lightweight but strong construction that does not crush your ears like a set of unpadded tuna cans mounted to a 29cent headband from the dollar store. Even the Heil replacement cables made of flat 3 wired cable, will rot and crack in high humidity and heat that we regularly experience in Kansas. The cables fatigue so easily and are easily cut if a drawer or door closes on them or if a chair rolls over them, you are done. Operating outside in South Texas or near sea air in Maine in the summertime will do a number on the cables and the earmuff covering. The computer headsets have the nylon braided covering and the braid is moulded into the connector preventing sharp bending fatigue. For me it is Logitec with the electrec mic. They are lightweight, totally cover the ear, mute external sound well and cost 1/10th of what a set of heils run and last at least 4 to 5 times as long probably....after 7 years, I'm still on my first pair. In contrast I was going through a set of Heils every 18 months as something would go wrong. Generally the flimsy cables would short/open circuit or the earmuffs would rot off. Don't even mention the $250 dollar set that after wearing for 4 hours, gives me a headache and is as heavy as 2 anvils crushing into the side of your head. Why did I buy so many Heil products, mainly because I could not try them on. I go to BestBuy, The headsets are all on display for comfort and sound quality. Try them on, choose your pair, walk out a happy man. My 2 cents and for what it is worth, and $2.98 you can get a cup of joe. 73, Morgan NJ8M On Wed, Jun 24, 2020 at 12:45 AM Tony wrote: > All: > > I purchased the new Heil HM-10 dual element microphone thinking it would > perform as well as my old HM-10 which has the HC4 and HC5 mic elements. > Unfortunately, that's not the case and reason seems to be the way the > new mic was designed. > > The mic elements are at a 45 degree angle and placed much further away > from the windscreen compared to the old mic. The result is that the new > mic requires near maximum gain (maximum with some rigs) to set the ALC > properly, even when you're up close to the mic. > > By comparison, the early HM-10 faces it's elements forward and close to > the windscreen so the mic requires A LOT less gain which results in much > better overall performance. > > The elements on the new HM-10 have individual windscreens as well and > that seems to add further restriction. The HC4 / HC5 elements on the old > mic have no additional windscreens. > > The good news is that Heil did a great job duplicating the HC4 / HC5 > frequency response so the new elements produce the great articulation > the old elements are known for. The problem with the new mic (as I see > it) is it's physical design. > > Has anyone else compared the new HM-10 XD to the old HM-10 with their > K3S or any other transceivers? > > Tony -K2MO > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mbaileycrna at gmail.com > From ny9h at arrl.net Wed Jun 24 09:39:32 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Wed, 24 Jun 2020 09:39:32 -0400 Subject: [Elecraft] New Heil HM10 XD Microphone - Poor Design? In-Reply-To: References: Message-ID: <1c068a8e-f9d0-d625-caf3-c210f6d5bbde@arrl.net> headsets four years ago while on a bike trip along the Danube, my kx3's headset cable broke ... not to fear cause in the next village the locals had a 6$ computer headset, which I still keep in the kx3 setup. While it does have some 'rescue" tape on it ,,,,it still works great. I don't think there is such a thing as a bad electret,,,?? Even after a headset breaks..steal the electret from it ...cause it works. -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From ardrhi at gmail.com Wed Jun 24 09:58:40 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Wed, 24 Jun 2020 09:58:40 -0400 Subject: [Elecraft] New Heil HM10 XD Microphone - Poor Design? In-Reply-To: References: Message-ID: I have an HM-10, but I've had it for about 15 years. It's on my Icom 746 Pro that I only currently use for 2m nets on Sundays, or if I feel like getting on the local 2m repeater. I'm considering installing it in my van for QRO field ops, though that'll require me getting a replacement 2m base rig. (I have an ancient Yaesu FT-90 on my workbench, but it suffers massively from temperature issues, and it's not in good shape otherwise, so it doesn't owe me anything. I can replace it without shame.) The microphone has always been a good one for me. So much so, that when the element switch snapped off at the base of the toggle handle, I went to the hassle of tracking down a replacement switch, taking the mike apart, and swapping the switch out. I expect it'll last me another 10 years or more. It's a great mike, and what I've heard of the more recent changes at Heil make me glad this one is so well-made. I wouldn't buy one of the new ones unless I had to for some reason. What I use on my KX3 is a Zoom H4n Handy Recorder in USB interface mode. I run my KX3 mike and speaker jacks into a dedicated USB dongle on my main PC, and control the rig through Win4K3Suite. I use Voicemeeter Potato virtual audio mixer and virtual audio cables to route the H4n to the mike input on the KX3. It sounds great, as the Zoom mike elements are totally awesome broadcast quality. Eventually, I may look into an adapter from the Heil 4-pin XLR to standard 3-pin XLR with an external PTT button, because the H4n has two XLR inputs on the bottom (they also incorporate 1/4" inputs in the center of the same jack), and that might be a good option to keep the Heil in service. I don't know that I want to put it in the van with the Icom...but it'll depend on where and how I mount that rig. Another option is some other arrangement for using the HM-10 directly on the KX3, but I can't see how I could do better than an XLR connection, especially given the flexibility of the virtual mixer and Win4K3Suite. Maybe someday the H4n will die, but frankly, I'd probably replace it with a new Zoom Handy Recorder, probably the new H4n Pro, H5, or H6, the latter two of which would give me the option of swapping out the mike elements if I feel like it. I'd probably get the H6; it has the most flexibility -- two more recording tracks and will use up to 128GB SDXC cards. If you haven't seen them, the Zoom Handy Recorders are more than just digital voice recorders. They're multitrack mixing and recording decks that will save directly to an SD card, and will run for weeks on a couple of AA or AAA batteries -- or forever, powered by the USB interface. There's a variety of interchangeable modules that work with the H5 and H6, including a shotgun mike and several different stereo mike modules. They're expensive, but they're professional audio gear. There are lesser models if you don't need as many recording features, such as multitracking, and all of them work as USB interfaces. https://www.zoom-na.com/products/field-video-recording/field-recording -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Wed, Jun 24, 2020 at 8:46 AM Morgan Bailey wrote: > I quit using Heil products. Many of the ear muffs rotted off after one > sweaty session at FD. I switched over to a $29.99 Logitec boom mic computer > headset with 1/8 plugs. I figured it would break easily, I was wrong, I am > still using it after 7 years and many sweaty operating conditions, FD, > Special events, POTA, etc. Never a problem and my voice is very natural and > I regularly get great sound reports from people that know my voice.On the > K3s with factory defaults, I just leave the equalization sliders alone and > I am good to go. I have used the same headset traveling playing computer > games in hotel rooms for 10 years. Both my son and I abandon Heil products > because of their product construction and reliability issues. The computer > gaming manufactures understand what it takes to make a great comfortable > headset and Bob Heil could take lessons from them. For instance, cloth ear > muff covering, braided nylon cable coverings, easy swivel phones on the > headband, lightweight but strong construction that does not crush your ears > like a set of unpadded tuna cans mounted to a 29cent headband from the > dollar store. Even the Heil replacement cables made of flat 3 wired cable, > will rot and crack in high humidity and heat that we regularly experience > in Kansas. The cables fatigue so easily and are easily cut if a drawer or > door closes on them or if a chair rolls over them, you are done. Operating > outside in South Texas or near sea air in Maine in the summertime will do a > number on the cables and the earmuff covering. The computer headsets have > the nylon braided covering and the braid is moulded into the connector > preventing sharp bending fatigue. For me it is Logitec with the > electrec mic. They are lightweight, totally cover the ear, mute external > sound well and cost 1/10th of what a set of heils run and last at least 4 > to 5 times as long probably....after 7 years, I'm still on my first pair. > In contrast I was going through a set of Heils every 18 months as something > would go wrong. Generally the flimsy cables would short/open circuit or the > earmuffs would rot off. Don't even mention the $250 dollar set that after > wearing for 4 hours, gives me a headache and is as heavy as 2 anvils > crushing into the side of your head. Why did I buy so many Heil products, > mainly because I could not try them on. I go to BestBuy, The headsets are > all on display for comfort and sound quality. Try them on, choose your > pair, walk out a happy man. > > My 2 cents and for what it is worth, and $2.98 you can get a cup of joe. > > 73, > Morgan NJ8M > > On Wed, Jun 24, 2020 at 12:45 AM Tony wrote: > > > All: > > > > I purchased the new Heil HM-10 dual element microphone thinking it would > > perform as well as my old HM-10 which has the HC4 and HC5 mic elements. > > Unfortunately, that's not the case and reason seems to be the way the > > new mic was designed. > > > > The mic elements are at a 45 degree angle and placed much further away > > from the windscreen compared to the old mic. The result is that the new > > mic requires near maximum gain (maximum with some rigs) to set the ALC > > properly, even when you're up close to the mic. > > > > By comparison, the early HM-10 faces it's elements forward and close to > > the windscreen so the mic requires A LOT less gain which results in much > > better overall performance. > > > > The elements on the new HM-10 have individual windscreens as well and > > that seems to add further restriction. The HC4 / HC5 elements on the old > > mic have no additional windscreens. > > > > The good news is that Heil did a great job duplicating the HC4 / HC5 > > frequency response so the new elements produce the great articulation > > the old elements are known for. The problem with the new mic (as I see > > it) is it's physical design. > > > > Has anyone else compared the new HM-10 XD to the old HM-10 with their > > K3S or any other transceivers? > > > > Tony -K2MO > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to mbaileycrna at gmail.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com > From Lyn at LNAINC.com Wed Jun 24 10:42:40 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Wed, 24 Jun 2020 09:42:40 -0500 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software In-Reply-To: <407867EA-FB9C-4C75-8D46-F13C4423FF1F@me.com> References: <023201d649a3$d7dd74c0$87985e40$@LNAINC.com> <6E43A03C-6ECD-478A-B922-9CAC562F7C8B@me.com> <028301d649b9$1b5e9890$521bc9b0$@LNAINC.com> <8AE6DBAB-561E-493E-A560-48783E5E3098@me.com> <407867EA-FB9C-4C75-8D46-F13C4423FF1F@me.com> Message-ID: <00e301d64a35$b668ec60$233ac520$@LNAINC.com> OK - the computer is Windows 7 Pro 64. Sorry I didn't mention that earlier. Running tests today, it is inconsistent. Sometimes it works, sometimes not. There is a sequence of events I can't quite discern that causes the failure. It is basically as I described, but sometimes not. How's that for clear as mud? There doesn't actually seem to be any scenario that is 100% predictable either way. Maybe powering down the computer overnight has some bearing. In any event, the rear power switch on the KPA is NEVER shut off. If the KPA is shut down with the front button, and I try to turn it back on with the utility and it fails - and then I go to the Port tab and Test Communications, I generally get the "KPA waiting for power button or firmware load. RS-232 speed 38400 bit/s." message. Then SOMETIMES after I click OK, and go back to the Operate tab, the KPA comes turns on by itself. But sometimes not and I have to click the ON in the utility. Thanks Jack, and Dick for your help. This is obviously not a show-stopper, just a minor aggravation. It's a "would be nice" but not a "top of list" issue. It would be of more concern if it indicated an actual failure of something physical (my KPA has been in to service twice in its first year). 73 Lyn, W0LEN -----Original Message----- From: Jack Brindle [mailto:jackbrindle at me.com] Sent: Tuesday, June 23, 2020 9:35 PM To: elecraft at mailman.qth.net Cc: Lyn at lnainc.com Subject: Re: [Elecraft] KAT500 Remote software and KPA500 remote software A bit more information about how things work in the KPA500. The boot loader runs on back-panel power-on or when the amplifier is powered off from the front panel (or by command). It runs in power-down state, sleeping the processor as much as possible. It looks for inputs from the front panel power button (which is in parallel with a pin on the AUX/IO port) and the serial port. The serial port has an abbreviated command set (described in the KPA500 Programmer?s Reference) - the memory segment for bootstrap loader is full, and there was not enough space to implement a full command set style protocol. The portion the boot loader is fixed at 38400 bps. Reception of a ?P? character causes the loader to check firmware memory, and if that check is positive it moves execution to the main firmware, where the amplifier is initialized and brought on-line. If the user has set a different data rate, it will be changed at this point. Because the boot command structure is different from the main commands it is possible for the KPA Utility (or any control program) to get out of sync with the KPA if the user powers down (or up) the KPA from the front panel power button. The KPA Utility usually does a very good job of catching the situation and moving to the proper mode. There is a slight difference between the three versions - W4SMT has done a very good job of catching this in the Mac and Linux versions, to the point where missing the change is very rare (as far as I have seen). I will also say the the Window?s version is also rare at missing this, but apparently there are times when it may miss things as Dick has stated. In any case, as I noted, we test this scenario extensively. It does usually work, as I noted previously. We just need to determine why Lyn is seeing it fail. 73! Jack, W6FB > On Jun 23, 2020, at 7:12 PM, Jack Brindle via Elecraft wrote: > > Let's see if we can determine why you are seeing this behavior. What platform are you using (Window, Mac, Linux), and exactly what is the scenario and conditions you are seeing? In other words, please provide more info. I believe K6KR has provided a bit of additional info. He wrote the KPA Utility for Windows, and knows the computer side of things. > > I wrote the code for both the bootstrap loader and the main program in the KPA500. I tested all parts of the code operation for both bootstrap (which runs with front power off) and main firmware (runs with power ON) with both the Mac and Windows Utilities for each KPA500 firmware release as well as when the Utilities are released. In fact I tested it earlier today with both the original KPA500 and a newer one I bought a year ago. In all cases the KPA Utility was able to turn on and off the KPAs properly. > > With adequate information, we should be able to get things working properly for you. > > 73, > Jack, W6FB > Elecraft Engineering > > >> On Jun 23, 2020, at 4:50 PM, Lyn Norstad wrote: >> >> Nope. "Should be" is not how it works. I have discussed this with Support, and it would require constant polling ... which they cannot do. >> >> Once you turn it OFF with the front panel switch, it needs to be turned on the same way. After that, yes the utility is fully functional. >> >> 73 >> Lyn, W0LEN >> >> >> >> -----Original Message----- >> From: Jack Brindle [mailto:jackbrindle at me.com] >> Sent: Tuesday, June 23, 2020 5:16 PM >> To: Lyn at lnainc.com >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] KAT500 Remote software and KPA500 remote software >> >> Take another look. You should be able to power on/off the KPA500 using the front power button as well as through the KPA Utility. The Utility does a great job of detecting the KPA500?s current data rate whether it is on or off (the two rates may be different) and will communicate at the proper rate to power the amplifier on or off using the ON/OFF button in the Operate panel. >> >> Turning the back panel switch to the OFF position will, of course, disable the ability to power on the amplifier using wither the KPA Utility or the front panel pushbutton. >> >> 73! >> Jack, W6FB >> >> >>> On Jun 23, 2020, at 2:18 PM, Lyn Norstad wrote: >>> >>> I meant to follow up on this sooner, but ? so here?s what I found with the KPA500 and KPA Utility Rev 1.13.7.16. First, the KPA500 rear power switch must, of course, remain in the ON position at all times. >>> >>> >>> >>> Once the KPA500 has been powered on with the Front panel switch (and communications is set up properly between the computer and the KPA500), in order to have ON/OFF control from the utility app, the KPA500 must never be turned OFF from the front panel switch. >>> >>> >>> >>> It?s OK to use the other front panel controls (including STANDBY/OPERATE), just not the ON/OFF power button. >>> >>> >>> >>> 73 >>> >>> Lyn, W0LEN >>> >>> >>> >>> >>> >>> -----Original Message----- >>> From: Lyn Norstad [mailto:Lyn at LNAINC.com] >>> Sent: Tuesday, June 09, 2020 3:42 PM >>> To: 'Gordon LaPoint'; 'elecraft at mailman.qth.net' >>> Subject: RE: [Elecraft] KAT500 Remote software and KPA500 remote software >>> >>> >>> >>> If you're running Windows, yes I know how to do that. But keep in mind that the KPA Utility will not connect to the KPA500 unless the amp is first powered on. >>> >>> >>> >>> To have the programs start on boot, just drag them into the Windows "Startup" folder (I am on Windows 7). >>> >>> >>> >>> In Windows 10, search "Startup Apps." >>> >>> >>> >>> 73 >>> >>> Lyn, W0LEN >>> >>> >>> >>> -----Original Message----- >>> >>> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint >>> >>> Sent: Tuesday, June 09, 2020 1:45 PM >>> >>> To: elecraft at mailman.qth.net >>> >>> Subject: [Elecraft] KAT500 Remote software and KPA500 remote software >>> >>> >>> >>> Can these remote software's be in host mode on startup? I run a remote >>> >>> and would like to have them connect to the hardware and be in host mode >>> >>> on boot of the computer. Right now I just log on remotely and start >>> >>> each one as needed. >>> >>> >>> >>> Thanks, >>> >>> >>> >>> Gordon - N1MGO >>> >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to jackbrindle at me.com >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From kg7vq01 at gmail.com Wed Jun 24 11:35:12 2020 From: kg7vq01 at gmail.com (Russ Edelen) Date: Wed, 24 Jun 2020 09:35:12 -0600 Subject: [Elecraft] K2 after kat2 install Q7 & 8 check In-Reply-To: References: <450dc866-ee2e-1c40-842c-62b31d35a944@gmail.com> Message-ID: <080f5741-0408-7136-e429-4aaaf871fa0b@gmail.com> Thanks Don. That confirms the notion I had about needing the replacement kit. Russ KG7VQ From donwilh at embarqmail.com Wed Jun 24 11:53:17 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Wed, 24 Jun 2020 11:53:17 -0400 Subject: [Elecraft] K2 after kat2 install Q7 & 8 check In-Reply-To: <080f5741-0408-7136-e429-4aaaf871fa0b@gmail.com> References: <450dc866-ee2e-1c40-842c-62b31d35a944@gmail.com> <080f5741-0408-7136-e429-4aaaf871fa0b@gmail.com> Message-ID: Russ, Your statement of "no resistance" is misleading.? Several hams use that to indicate infinite resistance - because of the way their meter reads (blank reading) where in other cases, hams use that phrase to indicate zero ohms. In the future, be clear and use a numerical value - infinity? is a numerical value. The Collector to ground resistance will normally be in the vicinity of 1500 ohms and climb as the meter charges the electrolytic capacitors. 73, Don W3FPR On 6/24/2020 11:35 AM, Russ Edelen wrote: > Thanks Don. That confirms the notion I had about needing the > replacement kit. > > Russ > > KG7VQ > From kg7vq01 at gmail.com Wed Jun 24 12:05:19 2020 From: kg7vq01 at gmail.com (Russ Edelen) Date: Wed, 24 Jun 2020 10:05:19 -0600 Subject: [Elecraft] K2 after kat2 install Q7 & 8 check In-Reply-To: References: <450dc866-ee2e-1c40-842c-62b31d35a944@gmail.com> <080f5741-0408-7136-e429-4aaaf871fa0b@gmail.com> Message-ID: <8fcd567e-a443-d523-4361-2ac3470755d5@gmail.com> Thanks Don. To clarify the thread, I was reading infinite resistance. Russ KG7VQ On 6/24/2020 9:53 AM, Don Wilhelm wrote: > Russ, > > Your statement of "no resistance" is misleading.? Several hams use > that to indicate infinite resistance - because of the way their meter > reads (blank reading) where in other cases, hams use that phrase to > indicate zero ohms. > In the future, be clear and use a numerical value - infinity? is a > numerical value. > > The Collector to ground resistance will normally be in the vicinity of > 1500 ohms and climb as the meter charges the electrolytic capacitors. > > 73, > Don W3FPR > > On 6/24/2020 11:35 AM, Russ Edelen wrote: >> Thanks Don. That confirms the notion I had about needing the >> replacement kit. >> >> Russ >> >> KG7VQ >> > From wlbaber at bellsouth.net Wed Jun 24 12:42:46 2020 From: wlbaber at bellsouth.net (WILLIE BABER) Date: Wed, 24 Jun 2020 16:42:46 +0000 (UTC) Subject: [Elecraft] Kpa500 References: <1037835172.2487954.1593016966186.ref@mail.yahoo.com> Message-ID: <1037835172.2487954.1593016966186@mail.yahoo.com> I received kpa500k yesterday evening, about 4:30 pm. I was done building it at about 1:30 am, with time out for supper.? I did the HV test before going to bed. ...very easy build; however, I was already familiar with the hardware sizes which could otherwise slow down assembly. I like the small size of kpa500 given its power output with a built in power supply. 73, will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ From chrisrut7 at gmail.com Wed Jun 24 13:05:43 2020 From: chrisrut7 at gmail.com (Chris R. NW6V) Date: Wed, 24 Jun 2020 10:05:43 -0700 Subject: [Elecraft] KAT500 Remote software and KPA500 remote software Message-ID: "Once you turn it OFF with the front panel switch, it needs to be turned on the same way. After that, yes the utility is fully functional." I suspect the serial connection is getting confused and not properly reconnecting in the power up/down situation. I see that between the K3 and the Win4K3 suite frequently. If I power down the K3 I usually need to restart the computer to get all the serial connections talking again. This could well be an artifact of the specific serial connectors used. PRoblems with one band of chip versus another are a constant source of conversation. As per the engineers and the experience of others, the behavior you're seeing is not part of the design per se. 73 Chris NW6V From n7tb at comcast.net Wed Jun 24 13:17:02 2020 From: n7tb at comcast.net (Terry Brown) Date: Wed, 24 Jun 2020 10:17:02 -0700 Subject: [Elecraft] Raspberry Pi Ham Programs Message-ID: <015801d64a4b$4f0cf460$ed26dd20$@comcast.net> If any of you are interested in using a Raspberry Pi for qrp/field operations, there is a great source of information for setting up you Pi for that. If you have not discovered KM4ACK's YouTube channel, you might consider doing so. I have been a Patreon member of his group and have followed Jason's (KM4ACK) development of Pi ham software over the last six months. He recently completed his latest version of "Build-a-pi V3". It has probably 20 ham programs from many digital programs, to ham clock, to logging programs, to propagation programs..the list goes on. The remarkable thing is you install everything from one command line in the terminal window of the pi and his video tells you how to do that. It takes a Raspberry Pi 4 about 4 hours to install all the programs. You will need to flash a clean copy of the latest Buster on an SD card. It also helps to connect an ethernet cable from your router to the Pi, but you can do it with the wireless network connection. This is the culmination of almost a year's work by Jason. He has learned as he had gone, and it is truly a remarkable effort. He has a lot of other videos as well that relate to the operation of the Pi. 73, Terry From rocketnj at gmail.com Wed Jun 24 13:32:35 2020 From: rocketnj at gmail.com (Dave) Date: Wed, 24 Jun 2020 13:32:35 -0400 Subject: [Elecraft] Raspberry Pi Ham Programs In-Reply-To: <015801d64a4b$4f0cf460$ed26dd20$@comcast.net> References: <015801d64a4b$4f0cf460$ed26dd20$@comcast.net> Message-ID: <76CA70F0-000D-4203-BB0C-3C9183A53D63@gmail.com> I am using a Pi running Buster OS. It is running Node Red which is a graphical programming interface to control and connect IoT devices. I have written a flow to control and monitor my KPA1500 remotely from any web browser. This includes peak reading wattmeter, SWR, temperature, operate/standby, antenna selection, power on/off, and any trip alarms. Any other function for the amp can be added. I also have flows which control my rotor, complete with presets and manual entry along with beam hearing display. A flow for a Data Logger Web Switch Pro which allows me to turn equipment on and off remotely as well as pinging a couple of sites to ensure the Internet connection is up. If it fails to ping either site for at least 10 minutes it reboots the cable modem, router, and management PC I have on the network. Last, it interrogated my radio (not Elecraft but you can modify for Elecraft CAT) and it sends TX frequency in UDP XML document packets to W1TR?s HF Auto program and Green Heron Everywhere antenna switch. Anyone interested just email me direct. My email is good on QRZ. Very handy when operating remote. Dave wo2x Sent from my waxed string and tin cans. > On Jun 24, 2020, at 1:18 PM, Terry Brown wrote: > > ?If any of you are interested in using a Raspberry Pi for qrp/field > operations, there is a great source of information for setting up you Pi for > that. If you have not discovered KM4ACK's YouTube channel, you might > consider doing so. I have been a Patreon member of his group and have > followed Jason's (KM4ACK) development of Pi ham software over the last six > months. He recently completed his latest version of "Build-a-pi V3". It > has probably 20 ham programs from many digital programs, to ham clock, to > logging programs, to propagation programs..the list goes on. > > > > The remarkable thing is you install everything from one command line in the > terminal window of the pi and his video tells you how to do that. It takes > a Raspberry Pi 4 about 4 hours to install all the programs. > > > > You will need to flash a clean copy of the latest Buster on an SD card. It > also helps to connect an ethernet cable from your router to the Pi, but you > can do it with the wireless network connection. > > > > This is the culmination of almost a year's work by Jason. He has learned as > he had gone, and it is truly a remarkable effort. He has a lot of other > videos as well that relate to the operation of the Pi. > > > > 73, > > > > Terry > > > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rocketnj at gmail.com From mbaileycrna at gmail.com Wed Jun 24 14:00:38 2020 From: mbaileycrna at gmail.com (Morgan Bailey) Date: Wed, 24 Jun 2020 13:00:38 -0500 Subject: [Elecraft] Kpa500 In-Reply-To: <1037835172.2487954.1593016966186@mail.yahoo.com> References: <1037835172.2487954.1593016966186.ref@mail.yahoo.com> <1037835172.2487954.1593016966186@mail.yahoo.com> Message-ID: I have built 3 of those and they are flawless. Excellent amps. They keep running and are the greatest thing out there. 73 Morgan NJ8M On Wed, Jun 24, 2020 at 11:44 AM WILLIE BABER wrote: > I received kpa500k yesterday evening, about 4:30 pm. I was done building > it at about 1:30 am, with time out for supper. I did the HV test before > going to bed. > ...very easy build; however, I was already familiar with the hardware > sizes which could otherwise slow down assembly. > I like the small size of kpa500 given its power output with a built in > power supply. > 73, will, wj9b > CWops #1085 > CWA Advisor levels II and III > http://cwops.org/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mbaileycrna at gmail.com From gdt at lexort.com Wed Jun 24 15:12:29 2020 From: gdt at lexort.com (Greg Troxel) Date: Wed, 24 Jun 2020 15:12:29 -0400 Subject: [Elecraft] K4 Question In-Reply-To: <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> (Wayne Burdick's message of "Tue, 23 Jun 2020 20:16:41 -0700") References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> Message-ID: Wayne Burdick writes: > I set mutual attenuation to 30 dB, a rough estimate of the path loss > using dipoles 500' apart at 7 MHz. This is a pretty wild guess, > though. Loss could be much higher if the antennas were oriented to > avoid coupling, and it'll vary with frequency, terrain, actual > distance, etc. Of course path loss could be lower with gain antennas > at either or both ends, aimed at the other. (A situation generally > avoided at FD.) I think 30 dB loss is an extremely conservative test and that very few people will see coupling that strong. At my club's 2019 Field Day, with help from several, I made measurements of received signal strength at several of our stations with various antennas, with a nominal 100W test carrier. Measurements are just reading a P3 -- and note that none of the P3 owners had paid for the NIST-traceable calibration certificate. Setup was CW station with K3newsyn, digital station with IC7300, only 20m separation from one CW antenna to the digital antenna. And SSB station with K3newsyn, 200m away. We did not have trouble, but always had at least 50 kHz separation. Received levels ranged from S9+40 to S9+73, with S9+50 typical. So received signals were -33 dBm min, -23 dBm typical, 0dBm max With +50 dBm transmit, that works out to path loss: 83 dB max, 73 dB typical, 50 dB min (The 0 dBm received signal was between an OCFD and a G5RV, about 20m apart.) It is interesting to hear of S9+65 from a neighbor. Even if they are running 1.5 kW, seems like it must be only a few hundred meters separation. If it's farther the details of distance, tx power, antenna types would be interesting. I realize this is not responsive to Eric's question about the K4, but thought that additional real-world cosite path loss data points would be of interest.. 73 de n1dam From M0XDF at Alphadene.co.uk Wed Jun 24 15:41:38 2020 From: M0XDF at Alphadene.co.uk (David Ferrington, M0XDF) Date: Wed, 24 Jun 2020 20:41:38 +0100 Subject: [Elecraft] I'm building a personal email list.... In-Reply-To: References: <98b39b9b-7599-735c-9937-ff1ac051a46a@yahoo.com> <6BDB6A3A-8FCA-495C-AB99-BB3374F4F63E@yahoo.com> <15b5339f-48d5-7e41-3171-b1b7c22b6f6e@embarqmail.com> Message-ID: Ken, take a look at groups.io 73 de David, M0XDF It's not enough that we do our best; sometimes we have to do what's required. - Winston Churchill > On 20 Jun 2020, at 17:26, Ken G Kopp wrote: > > John, > > It was a bungled effort to make a small personal mailing list. I've asked > Elecraft to remove / block it. > > 73 > > Ken Kopp - K0PP > > > On Sat, Jun 20, 2020, 10:19 John wrote: > >> I ask just what is this list to be used for? >> >> >> On 20/06/2020 8:32 a.m., Dave Sublette wrote: >>> OPT OUT--- K4TO >>> >>> On Sat, Jun 20, 2020 at 11:21 AM Don Wilhelm >> wrote: >>> >>>> I am with Jim and Gwen. I have too many lists right now. >>>> >>>> 73, >>>> Don W3FPR >>>> >>>> On 6/20/2020 11:03 AM, Jim Sheldon wrote: >>>>> Ken, >>>>> Exactly as Gwen Patton said, CONTACT list fine as my email address is >>>>> also on QRZ but if you are starting a reflector. Do NOT put my email >>>>> address in automatically. IF I don't have the prerogative to OPT-OUT, >> I >>>>> want no part of it. >>>>> >>>>> Jim, W0EB >>>>> >>>>> >>>>>> I'm confused. Do you mean a personal CONTACT list, or a mailing list >>>> like >>>>>> the Elecraft reflector? >>>>>> >>>>>> If it's the former, I don't mind if you associate my address with, >>>>>> say, my >>>>>> call sign, so you can contact me if you need to. That's because you >>>> could >>>>>> look me up on QRZ and find my email address. It's no big deal. >>>>>> >>>>>> But if you mean a REFLECTOR, including me in mass mailings, then I'll >>>>>> have >>>>>> to say no, thank you. If you want to have a reflector of your own, I >>>>>> strongly suggest that you make it opt-in, not opt-OUT. I get hundreds >>>>>> of emails a day, and need to choose the reflectors I subscribe to very >>>>>> carefully. >>>>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to k4to at arrl.net >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to ve7day at telus.net >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kengkopp at gmail.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to m0xdf at alphadene.co.uk From k6dgw at foothill.net Wed Jun 24 16:24:43 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Wed, 24 Jun 2020 13:24:43 -0700 Subject: [Elecraft] K4 Question In-Reply-To: References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> Message-ID: During the BPL conflagration a number of years ago, most of the concern seemed to be interference "to" amateur radio operations.? I became a bit concerned that my neighbor would go BPL and my 1200 HF watts would kill his I'net.? Technically and legally his problem, not mine of course, but I still needed to get along with him. We had a 69 KV line running through our property tying two hydroelectric plants together, with a primary 12 KV distribution line underneath which would have been the BPL feed.? At closest approach my antenna and the lines were about 165 m apart.? I modeled them and my sloping-V in EZNEC and found that the coupling between them was -32 to -35 dB on all bands except 80 and 160, where it ran about -17 dB on both bands.? On 80 and 160, the power lines were in my near-field. So, I would conclude that Wayne's 30 dB, based on a different model, is a pretty good estimate.? Fortunately, BPL faded into the sunset and I was never confronted with the problem. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/24/2020 12:12 PM, Greg Troxel wrote: > Wayne Burdick writes: > >> I set mutual attenuation to 30 dB, a rough estimate of the path loss >> using dipoles 500' apart at 7 MHz. This is a pretty wild guess, >> though. Loss could be much higher if the antennas were oriented to >> avoid coupling, and it'll vary with frequency, terrain, actual >> distance, etc. Of course path loss could be lower with gain antennas >> at either or both ends, aimed at the other. (A situation generally >> avoided at FD.) > I think 30 dB loss is an extremely conservative test and that very few > people will see coupling that strong. > > At my club's 2019 Field Day, with help from several, I made measurements > of received signal strength at several of our stations with various > antennas, with a nominal 100W test carrier. Measurements are just > reading a P3 -- and note that none of the P3 owners had paid for the > NIST-traceable calibration certificate. > > Setup was CW station with K3newsyn, digital station with IC7300, only > 20m separation from one CW antenna to the digital antenna. And SSB > station with K3newsyn, 200m away. > > We did not have trouble, but always had at least 50 kHz separation. > > Received levels ranged from S9+40 to S9+73, with S9+50 typical. > > So received signals were > > -33 dBm min, -23 dBm typical, 0dBm max > > With +50 dBm transmit, that works out to path loss: > 83 dB max, 73 dB typical, 50 dB min > > (The 0 dBm received signal was between an OCFD and a G5RV, about 20m apart.) > > It is interesting to hear of S9+65 from a neighbor. Even if they are > running 1.5 kW, seems like it must be only a few hundred meters > separation. If it's farther the details of distance, tx power, antenna > types would be interesting. > > I realize this is not responsive to Eric's question about the K4, but > thought that additional real-world cosite path loss data points would be > of interest.. > > 73 de n1dam > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k6dgw at foothill.net From norrislawfirm2 at gmail.com Wed Jun 24 20:42:10 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Wed, 24 Jun 2020 17:42:10 -0700 Subject: [Elecraft] K4 Question In-Reply-To: References: <1919392858.4092407.1592951225411.JavaMail.root@starpower.net> <0B707836-134D-4EF3-874C-5806FA908FAC@elecraft.com> Message-ID: My neighbor is 714ft (218m) away, running an ic7300 at 100w into a ZS6BW antenna at 40ft--aimed in my general direction. 73 Eric WD6DBM On Wed, Jun 24, 2020, 12:12 PM Greg Troxel wrote: > Wayne Burdick writes: > > > I set mutual attenuation to 30 dB, a rough estimate of the path loss > > using dipoles 500' apart at 7 MHz. This is a pretty wild guess, > > though. Loss could be much higher if the antennas were oriented to > > avoid coupling, and it'll vary with frequency, terrain, actual > > distance, etc. Of course path loss could be lower with gain antennas > > at either or both ends, aimed at the other. (A situation generally > > avoided at FD.) > > I think 30 dB loss is an extremely conservative test and that very few > people will see coupling that strong. > > At my club's 2019 Field Day, with help from several, I made measurements > of received signal strength at several of our stations with various > antennas, with a nominal 100W test carrier. Measurements are just > reading a P3 -- and note that none of the P3 owners had paid for the > NIST-traceable calibration certificate. > > Setup was CW station with K3newsyn, digital station with IC7300, only > 20m separation from one CW antenna to the digital antenna. And SSB > station with K3newsyn, 200m away. > > We did not have trouble, but always had at least 50 kHz separation. > > Received levels ranged from S9+40 to S9+73, with S9+50 typical. > > So received signals were > > -33 dBm min, -23 dBm typical, 0dBm max > > With +50 dBm transmit, that works out to path loss: > 83 dB max, 73 dB typical, 50 dB min > > (The 0 dBm received signal was between an OCFD and a G5RV, about 20m > apart.) > > It is interesting to hear of S9+65 from a neighbor. Even if they are > running 1.5 kW, seems like it must be only a few hundred meters > separation. If it's farther the details of distance, tx power, antenna > types would be interesting. > > I realize this is not responsive to Eric's question about the K4, but > thought that additional real-world cosite path loss data points would be > of interest.. > > 73 de n1dam > From n6tv at arrl.net Wed Jun 24 22:24:08 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Wed, 24 Jun 2020 19:24:08 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D Message-ID: This afternoon I made a 3-1/2 minute audio recording of two stations in QSO with each other on 40 CW, using both a K3 and K4D, and switching back and forth. Download here (2.3 MB): https://www.kkn.net/~n6tv/K3_vs_K4D_CW_Audio_by_N6TV_20200625.mp3 Recorded off rear headphone jack using an MK2R+ USB Sound Card. In sum, I think the K4D audio sounds quite a bit better, but the "500 Hz" passband of the K4 seems wider than the K3 (wider skirts?). The AGC attack time seems slower in the K4 (similar to Icom IC-7851 fast AGC, IMHO). So the "leading edge" of each dot or dash is louder, which may improve copy a bit. The loud station (about 599 + 10 dB) is AC2K in AZ, and the weaker one (about S-6 to S-7) is NZ0T in MO. Timestamp What you're hearing ------------ ------------------- 00:00 - 00:16 K3 00:19 - 01:00 K4 01:01 - 01:21 K4 with NR engaged and adjusted for best copy ("Level 3") (Tuned range 0 to 10, the complete range) 01:22 - 01:25 K3 01:26 - 01:58 K3 with NR F1-2 (didn't adjust) 02:00 - 02:35 K4 NR off I think 02:37 - 03:10 K3 NR off 03:13 - 03:20 K4 K3 is S/N 1495 with KSYN3A upgrade but original DSP board and Inrad 500 Hz 8-pole CW crystal filter, with W9AC Audio Mod . (capacitors changed in headphone circuit to increase low end audio response) K4D Field Test Unit S/N 0008 K3 and K4 were set with identical parameters where possible: AGC-F, ATT OFF, PRE OFF RF Gain about 3 O'Clock on K3. RF Gain 0 (max) on K4 CW mode, 500 Hz bandwidth Pitch 480 Hz / center of passband IF shift AGC Attack: 210 (K4 only) AGC DCY Soft (K3 only) AGC HLD 0.05 (K3 only) AGC PLS NOR/ON AGC SLP 008 (K3) AGC Slope 15 (K4 -- units are different) AGC THR 010 (K3) AGC Threshold 4 (K4 -- units are different) AGC-F / AGC Decay, Fast:120 AGC-S / AGC Decay, Slow: 20 73, Bob, N6TV From macymonkeys at charter.net Wed Jun 24 23:32:51 2020 From: macymonkeys at charter.net (Macy monkeys) Date: Wed, 24 Jun 2020 20:32:51 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: References: Message-ID: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> Overall, the K3 sounded a little smoother to my ears. I do not own a K3 nor have I ordered a K4. But I would be happy with either one! John K7FD > On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV wrote: > > 73, From n6kr at elecraft.com Wed Jun 24 23:36:49 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Wed, 24 Jun 2020 20:36:49 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: References: Message-ID: <963235FB-5424-4643-A67E-3633F9685AF7@elecraft.com> Bob, The DSP code isn't quite settled yet. I can help you further optimize the K4 settings, including AGC and NR. (Note that the NR settings are completely different between the two. We're also working on a much more advanced NR algorithm the doesn't have the "hollow" LMS sound of the current K3 and K4 NR.) Also, the K4 has better LF audio response, which may account for the wider-sounding passband. Wayne N6KR > On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV wrote: > > This afternoon I made a 3-1/2 minute audio recording of two stations in QSO > with each other on 40 CW, using both a K3 and K4D, and switching back and > forth. Download here (2.3 MB): > > https://www.kkn.net/~n6tv/K3_vs_K4D_CW_Audio_by_N6TV_20200625.mp3 > > Recorded off rear headphone jack using an MK2R+ USB Sound Card. > > In sum, I think the K4D audio sounds quite a bit better, but the "500 Hz" > passband of the K4 seems wider than the K3 (wider skirts?). The AGC attack > time seems slower in the K4 (similar to Icom IC-7851 fast AGC, IMHO). So > the "leading edge" of each dot or dash is louder, which may improve copy a > bit. > > The loud station (about 599 + 10 dB) is AC2K in AZ, and the weaker one > (about S-6 to S-7) is NZ0T in MO. > > Timestamp What you're hearing > ------------ ------------------- > 00:00 - 00:16 K3 > 00:19 - 01:00 K4 > 01:01 - 01:21 K4 with NR engaged and adjusted for best copy ("Level 3") > (Tuned range 0 to 10, the complete range) > 01:22 - 01:25 K3 > 01:26 - 01:58 K3 with NR F1-2 (didn't adjust) > 02:00 - 02:35 K4 NR off I think > 02:37 - 03:10 K3 NR off > 03:13 - 03:20 K4 > > K3 is S/N 1495 with KSYN3A upgrade but original DSP board and Inrad 500 Hz > 8-pole CW crystal filter, with W9AC Audio Mod > . > (capacitors changed in headphone circuit to increase low end audio response) > K4D Field Test Unit S/N 0008 > > K3 and K4 were set with identical parameters where possible: > > AGC-F, ATT OFF, PRE OFF > RF Gain about 3 O'Clock on K3. > RF Gain 0 (max) on K4 > CW mode, 500 Hz bandwidth > Pitch 480 Hz / center of passband IF shift > AGC Attack: 210 (K4 only) > AGC DCY Soft (K3 only) > AGC HLD 0.05 (K3 only) > AGC PLS NOR/ON > AGC SLP 008 (K3) > AGC Slope 15 (K4 -- units are different) > AGC THR 010 (K3) > AGC Threshold 4 (K4 -- units are different) > AGC-F / AGC Decay, Fast:120 > AGC-S / AGC Decay, Slow: 20 > > 73, > Bob, N6TV > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From n6tv at arrl.net Wed Jun 24 23:42:02 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Wed, 24 Jun 2020 20:42:02 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> Message-ID: On Wed, Jun 24, 2020 at 8:33 PM Macy monkeys wrote: > Overall, the K3 sounded a little smoother to my ears. I do not own a K3 > nor have I ordered a K4. But I would be happy with either one! > Please define "smoother". I prefer the K4 audio. Note that the recording starts with K3 audio. 73, Bob, N6TV From macymonkeys at charter.net Wed Jun 24 23:47:56 2020 From: macymonkeys at charter.net (Macy monkeys) Date: Wed, 24 Jun 2020 20:47:56 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> Message-ID: <2D467839-0280-4C43-AA04-F0E2CC2FEC21@charter.net> When I say smoother it's a very subjective observation. You mentioned AGC differences and that may very well be what I'm hearing. John K7FD > On Jun 24, 2020, at 8:42 PM, Bob Wilson, N6TV wrote: > >> On Wed, Jun 24, 2020 at 8:33 PM Macy monkeys wrote: > >> Overall, the K3 sounded a little smoother to my ears. I do not own a K3 nor have I ordered a K4. But I would be happy with either one! > > Please define "smoother". > > I prefer the K4 audio. Note that the recording starts with K3 audio. > > 73, > Bob, N6TV From n6tv at arrl.net Thu Jun 25 01:00:31 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Wed, 24 Jun 2020 22:00:31 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: <2D467839-0280-4C43-AA04-F0E2CC2FEC21@charter.net> References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> <2D467839-0280-4C43-AA04-F0E2CC2FEC21@charter.net> Message-ID: I probably should have backed off the RF gain on the K4 as I had done on the K3, instead of leaving it wide open on a noisy band like 40m. 73, Bob, N6TV On Wed, Jun 24, 2020, 8:48 PM Macy monkeys wrote: > When I say smoother it's a very subjective observation. You mentioned AGC > differences and that may very well be what I'm hearing. > > John K7FD > > On Jun 24, 2020, at 8:42 PM, Bob Wilson, N6TV wrote: > > On Wed, Jun 24, 2020 at 8:33 PM Macy monkeys > wrote: > >> Overall, the K3 sounded a little smoother to my ears. I do not own a K3 >> nor have I ordered a K4. But I would be happy with either one! >> > > Please define "smoother". > > I prefer the K4 audio. Note that the recording starts with K3 audio. > > 73, > Bob, N6TV > > From k2vco.vic at gmail.com Thu Jun 25 08:04:53 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Thu, 25 Jun 2020 15:04:53 +0300 Subject: [Elecraft] Very dumb mistake Message-ID: <1e3db94d-dbc8-872f-7316-f4fb9a3eedae@gmail.com> Senility. I was trying to repair my KRC2, which had a damaged voltage regulator and one of the driver chips. I put the new regulator in backwards (yes, I did this) and as a result applied about 10v to the 5v microprocessor. Now the voltage readings at the processor pins are very different from that specified in the manual. 1. Did I destroy the processor? 2. Is there a simple way to tell? This is depressing, because it took about a month for the replacement driver chip to get here. -- 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ From w1rm at comcast.net Thu Jun 25 08:18:26 2020 From: w1rm at comcast.net (Peter Chamalian) Date: Thu, 25 Jun 2020 08:18:26 -0400 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: References: Message-ID: <000201d64aea$bb56f810$3204e830$@comcast.net> I would like to hear this same A/B comparison but in a pile-up with 4 or more stations calling. I must confess the hard edge on the K4 "feels" more like a click to me but that's just my initial reaction. I have pre-ordered a K4HD. Pete, W1RM W1RM at Comcast.net -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Bob Wilson, N6TV Sent: Wednesday, June 24, 2020 10:24 PM To: Elecraft Reflector Subject: [Elecraft] New CW audio recording: K3 vs. K4D This afternoon I made a 3-1/2 minute audio recording of two stations in QSO with each other on 40 CW, using both a K3 and K4D, and switching back and forth. Download here (2.3 MB): https://www.kkn.net/~n6tv/K3_vs_K4D_CW_Audio_by_N6TV_20200625.mp3 Recorded off rear headphone jack using an MK2R+ USB Sound Card. In sum, I think the K4D audio sounds quite a bit better, but the "500 Hz" passband of the K4 seems wider than the K3 (wider skirts?). The AGC attack time seems slower in the K4 (similar to Icom IC-7851 fast AGC, IMHO). So the "leading edge" of each dot or dash is louder, which may improve copy a bit. The loud station (about 599 + 10 dB) is AC2K in AZ, and the weaker one (about S-6 to S-7) is NZ0T in MO. Timestamp What you're hearing ------------ ------------------- 00:00 - 00:16 K3 00:19 - 01:00 K4 01:01 - 01:21 K4 with NR engaged and adjusted for best copy ("Level 3") (Tuned range 0 to 10, the complete range) 01:22 - 01:25 K3 01:26 - 01:58 K3 with NR F1-2 (didn't adjust) 02:00 - 02:35 K4 NR off I think 02:37 - 03:10 K3 NR off 03:13 - 03:20 K4 K3 is S/N 1495 with KSYN3A upgrade but original DSP board and Inrad 500 Hz 8-pole CW crystal filter, with W9AC Audio Mod . (capacitors changed in headphone circuit to increase low end audio response) K4D Field Test Unit S/N 0008 K3 and K4 were set with identical parameters where possible: AGC-F, ATT OFF, PRE OFF RF Gain about 3 O'Clock on K3. RF Gain 0 (max) on K4 CW mode, 500 Hz bandwidth Pitch 480 Hz / center of passband IF shift AGC Attack: 210 (K4 only) AGC DCY Soft (K3 only) AGC HLD 0.05 (K3 only) AGC PLS NOR/ON AGC SLP 008 (K3) AGC Slope 15 (K4 -- units are different) AGC THR 010 (K3) AGC Threshold 4 (K4 -- units are different) AGC-F / AGC Decay, Fast:120 AGC-S / AGC Decay, Slow: 20 73, Bob, N6TV ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to w1rm at comcast.net From kt5te at watershipfarm.com Thu Jun 25 08:31:59 2020 From: kt5te at watershipfarm.com (kt5te at watershipfarm.com) Date: Thu, 25 Jun 2020 07:31:59 -0500 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> Message-ID: <25293589.Klck04EMly@linux-veff> I would have to say both sound better then my KX3 speaker. ;-) And I'm waiting for my K4D! BTW, the recording doesn't sound as good and my K2. :-) So we'll see if the K4 can hold up against the K2. :-) -- 73, William KT5TE On Wednesday, June 24, 2020 10:32:51 PM CDT Macy monkeys wrote: > Overall, the K3 sounded a little smoother to my ears. I do not own a K3 nor > have I ordered a K4. But I would be happy with either one! > > John K7FD > > > On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV wrote: > > > > 73, > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kt5te at watershipfarm.com From wlbaber at bellsouth.net Thu Jun 25 09:21:23 2020 From: wlbaber at bellsouth.net (WILLIE BABER) Date: Thu, 25 Jun 2020 13:21:23 +0000 (UTC) Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: <25293589.Klck04EMly@linux-veff> References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> <25293589.Klck04EMly@linux-veff> Message-ID: <651927037.2858388.1593091283886@mail.yahoo.com> I like k2 audio too but it seems that some of the difference compared to k3 is the lower I-F gain in k2.? So I reduced I-F gain in k3. K2 audio still wins but nothing I have used here slices through cw pileups like k3, or hears a weak signal better. The main action I took to enjoy k3 audio was to reduce the CW offset? to 500 hz, quite by accident, which is much lower than what sounds good to me on other radios, usually around 600 hz to 700 hz. My interest in k4 is to see what Elecraft can do that is better, based on having proven (at least to me) that k3 is easily? #1 compared to all other radios I have used in cw contests (in selectivity, weak signal, and qsk when using pin-diode switched amps). Of course some other radios come close, the second best I have used is Tentec Orion. 73, Will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Thursday, June 25, 2020, 6:32:28 AM MDT, wrote: I would have to say both sound better then my KX3 speaker.? ;-)? And I'm waiting for my K4D!? BTW, the recording doesn't sound as good and my K2.? :-)? So we'll see if the K4 can hold up against the K2.? :-) -- 73, William KT5TE On Wednesday, June 24, 2020 10:32:51 PM CDT Macy monkeys wrote: > Overall, the K3 sounded a little smoother to my ears. I do not own a K3 nor > have I ordered a K4. But I would be happy with either one! > > John K7FD > > > On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV wrote: > > > > 73, > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kt5te at watershipfarm.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wlbaber at bellsouth.net From hms4 at lehigh.edu Thu Jun 25 10:09:08 2020 From: hms4 at lehigh.edu (Howard Sherer) Date: Thu, 25 Jun 2020 10:09:08 -0400 Subject: [Elecraft] KPA-500 clicking as the temperature changes Message-ID: I have had a KPA500 for many years and the only annoying thing is that I hear clicking of the metal case parts as it heats up and cools down. all of the case screws are tight and I had this problem from the early days even before I had to remove the RF deck and send it to the factory for minor repairs 2 years ago. I don't think there is a way to find the source of the clicking unless I bypass the interlock and run it with the case panels off. Have others had this occur and if so did you find the source and solution? Howard From nr4c at widomaker.com Thu Jun 25 10:34:04 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 25 Jun 2020 10:34:04 -0400 Subject: [Elecraft] KPA-500 clicking as the temperature changes In-Reply-To: References: Message-ID: <1BCF6645-28CB-4C8C-AD97-78D82899246F@widomaker.com> I think it?s the ?Z? bracket inside. Sent from my iPhone ...nr4c. bill > On Jun 25, 2020, at 10:12 AM, Howard Sherer wrote: > > ?I have had a KPA500 for many years and the only annoying thing is that I > hear clicking of the metal case parts as it heats up and cools down. all of > the case screws are tight and I had this problem from the early days even > before I had to remove the RF deck and send it to the factory for minor > repairs 2 years ago. > > I don't think there is a way to find the source of the clicking unless I > bypass the interlock and run it with the case panels off. Have others had > this occur and if so did you find the source and solution? > > Howard > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From macymonkeys at charter.net Thu Jun 25 10:54:38 2020 From: macymonkeys at charter.net (Macy monkeys) Date: Thu, 25 Jun 2020 07:54:38 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> <2D467839-0280-4C43-AA04-F0E2CC2FEC21@charter.net> Message-ID: Thanks for doing these recordings, Bob. John K7FD > On Jun 24, 2020, at 10:00 PM, Bob Wilson, N6TV wrote: > > I probably should have backed off the RF gain on the K4 as I had done on > the K3, instead of leaving it wide open on a noisy band like 40m. > > 73, > Bob, N6TV > >> On Wed, Jun 24, 2020, 8:48 PM Macy monkeys wrote: >> >> When I say smoother it's a very subjective observation. You mentioned AGC >> differences and that may very well be what I'm hearing. >> >> John K7FD >> >> On Jun 24, 2020, at 8:42 PM, Bob Wilson, N6TV wrote: >> >> On Wed, Jun 24, 2020 at 8:33 PM Macy monkeys >> wrote: >> >>> Overall, the K3 sounded a little smoother to my ears. I do not own a K3 >>> nor have I ordered a K4. But I would be happy with either one! >> >> Please define "smoother". >> >> I prefer the K4 audio. Note that the recording starts with K3 audio. >> >> 73, >> Bob, N6TV > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to macymonkeys at charter.net From donwilh at embarqmail.com Thu Jun 25 11:29:06 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 25 Jun 2020 11:29:06 -0400 Subject: [Elecraft] Very dumb mistake In-Reply-To: <1e3db94d-dbc8-872f-7316-f4fb9a3eedae@gmail.com> References: <1e3db94d-dbc8-872f-7316-f4fb9a3eedae@gmail.com> Message-ID: <19022f4d-06e0-cf1c-3be1-c1bb169aa560@embarqmail.com> Victor, Condolences on your KRC2 problem. If you applied 10 volts to the processor, it is very likely toast. Try to load the KRC2 firmware. If that succeeds, the processor is likely OK. 73, Don W3FPR On 6/25/2020 8:04 AM, Victor Rosenthal 4X6GP wrote: > Senility. I was trying to repair my KRC2, which had a damaged voltage > regulator and one of the driver chips. I put the new regulator in > backwards (yes, I did this) and as a result applied about 10v to the 5v > microprocessor. > > Now the voltage readings at the processor pins are very different from > that specified in the manual. > > 1. Did I destroy the processor? > 2. Is there a simple way to tell? > > This is depressing, because it took about a month for the replacement > driver chip to get here. From ockmrzr at gmail.com Thu Jun 25 11:50:52 2020 From: ockmrzr at gmail.com (ockmrzr at gmail.com) Date: Thu, 25 Jun 2020 08:50:52 -0700 Subject: [Elecraft] K3 Items For Sale Message-ID: <1bbf01d64b08$6873cf10$395b6d30$@gmail.com> I have some spares for the K3 available after recent upgrades. "Let's Make a Deal" 1x - KXV3A K3 Transverter Interface module 4x - KSYN3 K3 Synthesizer module If interested, let me know via direct email, n7ty at arrl.net 73 de Bruce, N7TY Yuma, AZ www.qsl.net/n7ty From ak5x at me.com Thu Jun 25 13:10:04 2020 From: ak5x at me.com (William Hammond) Date: Thu, 25 Jun 2020 12:10:04 -0500 Subject: [Elecraft] KPA-500 clicking as the temperature changes In-Reply-To: <1BCF6645-28CB-4C8C-AD97-78D82899246F@widomaker.com> References: <1BCF6645-28CB-4C8C-AD97-78D82899246F@widomaker.com> Message-ID: I have KPA500 SN 00149. Mine is a kit and it hasn?t had a lid off since I finished building it July 2, 2011, almost 9 years ago,. Like the rest, I heard clicking for a while and all of a sudden it stopped or I just no longer hear it. I think it stopped. Whatever was clicking found its happy spot. The build: https://www.flickr.com/photos/ak5x/albums/72157626974789347/with/5894606802/ 73, Bill-AK5X > On Jun 25, 2020, at 9:34 AM, Nr4c wrote: > > I think it?s the ?Z? bracket inside. > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 25, 2020, at 10:12 AM, Howard Sherer wrote: >> >> ?I have had a KPA500 for many years and the only annoying thing is that I >> hear clicking of the metal case parts as it heats up and cools down. all of >> the case screws are tight and I had this problem from the early days even >> before I had to remove the RF deck and send it to the factory for minor >> repairs 2 years ago. >> >> I don't think there is a way to find the source of the clicking unless I >> bypass the interlock and run it with the case panels off. Have others had >> this occur and if so did you find the source and solution? >> >> Howard >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ak5x at me.com From nz0tham at gmail.com Thu Jun 25 14:02:27 2020 From: nz0tham at gmail.com (William Carpenter) Date: Thu, 25 Jun 2020 13:02:27 -0500 Subject: [Elecraft] New CW audio recording: K3 vs. K4D Message-ID: Thanks for the audio! I was running an old Heathkit SB-104A at 100 watts to a 43' vertical, the old girl doesn't sound too bad on either rig but the K4D does sound better to my ears. I had been working FT8 on my K3 but decided to call CQ on the Heath for grins. Glad you heard us! 73, Bill NZ0T From kthreebo at gmail.com Thu Jun 25 14:51:19 2020 From: kthreebo at gmail.com (barry halterman) Date: Thu, 25 Jun 2020 14:51:19 -0400 Subject: [Elecraft] K2 version A and B Message-ID: Could someone tell me main differences between the version A and B for the K2? Is the version B being shipped now if ordered? Thanks Barry From nelasat at yahoo.com Thu Jun 25 15:00:30 2020 From: nelasat at yahoo.com (Keith Ennis) Date: Thu, 25 Jun 2020 19:00:30 +0000 (UTC) Subject: [Elecraft] Digital Display Unit for W2 watt meter plus preview of NEW KPA500 DISPLAY UNIT References: <1100679789.2654616.1593111630689.ref@mail.yahoo.com> Message-ID: <1100679789.2654616.1593111630689@mail.yahoo.com> The demand for my Elecraft W2 DDU for the W2 watt meter has been way more than expected.Thanks for all the orders!? I do still have stock for these. I also want to show a preview of the New DDU for the Elecraft KPA500. This unit shows power, voltage, PA temperature, SWR and current all at the same time.No longer will you need to change the display to see these crucial readings. Same simple plug and play installation as the W2 DDU. Display can be remotely located up to 10-12 feet from the KPA500. For a preview go to the bottom of my web page:??http://www.kv5j.com The picture is a quick snap from my iPhone.? The display looks very clean and nice in person. If you want to get on a list for more info and ordering sent me a note at: DDUinfo at yahoo.com Thanks and 73 Keith, KV5J From donwilh at embarqmail.com Thu Jun 25 15:24:55 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 25 Jun 2020 15:24:55 -0400 Subject: [Elecraft] K2 version A and B In-Reply-To: References: Message-ID: <6ffbef97-706f-b13b-f040-f14e664a92c0@embarqmail.com> Barry, All K2s above SN 3000 are revision B - and that is what is being shipped today. The original Field Test and Rev A K2s began to have many mods added to them, so finally the boards were laid out again to incorporate all those mods onto the new boards - the result was Rev B. I believe that happened in 2003. A fully upgraded early K2 will perform just like a brand new one. One witness to that fact is my SN 00020 which was a Field Test model. There are a substantial number of mod kits for the K2, and they are listed on the K2 A to B upgrade instruction sheets. The one thing that is not covered in those instructions is the installation of the upgraded IF crystals (changed at SN 2560) and the KSB2 mods such as the PSK mod and the widening of the KSB2 filter to 2.4kHz instead of the original 2.1kHz. Also not covered is upgrading the KPA100 - the KPA100UPKT will bring any KPA100 up to the latest level. The KPA100 does not carry a serial number, so the latest level must be determined by inspection. If toroids L16 and at RFC4 have blue cores, it is the latest. The older ones have red cores at L15 and L16. There have also been upgrades in the KPA100 shield. The latest has a 1/4 inch wide slot above the SO239 jack and has spring clips that ground the shield to the sides of the base K2. For other than the Field Test KPA100s, the board has not been changed. 73, Don W3FPR On 6/25/2020 2:51 PM, barry halterman wrote: > Could someone tell me main differences between the version A and B for the > K2? > Is the version B being shipped now if ordered? From starman10 at hotmail.com Thu Jun 25 16:23:31 2020 From: starman10 at hotmail.com (Lou W0FK) Date: Thu, 25 Jun 2020 13:23:31 -0700 (MST) Subject: [Elecraft] Looking for 2 2.8 filters Message-ID: <1593116611299-0.post@n2.nabble.com> I'm looking for 2 2.8KHz filters to replace the 2.7KHz's in my K3S. In addition to just buying them outright, I can offer a partial trade by throwing in my 2 2.7KHz's plus cash, or swapping some combination of 2 400Hz or 2 250Hz filters. Please email me directly at lladerman AT earthlink DOT net. 73, Lou, W0FK -- Sent from: http://elecraft.365791.n2.nabble.com/ From starman10 at hotmail.com Thu Jun 25 16:27:57 2020 From: starman10 at hotmail.com (Lou W0FK) Date: Thu, 25 Jun 2020 13:27:57 -0700 (MST) Subject: [Elecraft] Looking for 2 2.8 filters In-Reply-To: <1593116611299-0.post@n2.nabble.com> References: <1593116611299-0.post@n2.nabble.com> Message-ID: <1593116877681-0.post@n2.nabble.com> I forgot that I also have 2 1.8KHz's available for trading. 73, Lou, W0FK -- Sent from: http://elecraft.365791.n2.nabble.com/ From kthreebo at gmail.com Thu Jun 25 16:35:44 2020 From: kthreebo at gmail.com (barry halterman) Date: Thu, 25 Jun 2020 16:35:44 -0400 Subject: [Elecraft] K2 version A and B In-Reply-To: <6ffbef97-706f-b13b-f040-f14e664a92c0@embarqmail.com> References: <6ffbef97-706f-b13b-f040-f14e664a92c0@embarqmail.com> Message-ID: Thanks for the reply Don. I tried to down load the instruction manual but get an error "page not found", so wasn't sure what mods were incorporated. Barry On Thu, Jun 25, 2020, 3:25 PM Don Wilhelm wrote: > Barry, > > All K2s above SN 3000 are revision B - and that is what is being shipped > today. > > The original Field Test and Rev A K2s began to have many mods added to > them, so finally the boards were laid out again to incorporate all those > mods onto the new boards - the result was Rev B. I believe that > happened in 2003. > > A fully upgraded early K2 will perform just like a brand new one. One > witness to that fact is my SN 00020 which was a Field Test model. > > There are a substantial number of mod kits for the K2, and they are > listed on the K2 A to B upgrade instruction sheets. > The one thing that is not covered in those instructions is the > installation of the upgraded IF crystals (changed at SN 2560) and the > KSB2 mods such as the PSK mod and the widening of the KSB2 filter to > 2.4kHz instead of the original 2.1kHz. > > Also not covered is upgrading the KPA100 - the KPA100UPKT will bring any > KPA100 up to the latest level. The KPA100 does not carry a serial > number, so the latest level must be determined by inspection. If > toroids L16 and at RFC4 have blue cores, it is the latest. The older > ones have red cores at L15 and L16. There have also been upgrades in > the KPA100 shield. The latest has a 1/4 inch wide slot above the SO239 > jack and has spring clips that ground the shield to the sides of the > base K2. For other than the Field Test KPA100s, the board has not been > changed. > > 73, > Don W3FPR > > On 6/25/2020 2:51 PM, barry halterman wrote: > > Could someone tell me main differences between the version A and B for > the > > K2? > > Is the version B being shipped now if ordered? > From donwilh at embarqmail.com Thu Jun 25 17:03:31 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 25 Jun 2020 17:03:31 -0400 Subject: [Elecraft] K2 version A and B In-Reply-To: References: <6ffbef97-706f-b13b-f040-f14e664a92c0@embarqmail.com> Message-ID: Barry, I did make one error in my post - it relates to the blue core toroid - it is at RFC1, not RFC4 as I indicated. With the Covid-19 problem in California, I suspect that the website may have some uncorrected errors at this time. I will send a copy of the K2AtoB instructions in an off-list email. 73, Don W3FPR On 6/25/2020 4:35 PM, barry halterman wrote: > Thanks for the reply Don. I tried to down load the instruction manual > but get an error "page not found", so wasn't sure what mods were > incorporated. > > Barry > > On Thu, Jun 25, 2020, 3:25 PM Don Wilhelm > wrote: > > Barry, > > All K2s above SN 3000 are revision B - and that is what is being > shipped > today. > > The original Field Test and Rev A K2s began to have many mods > added to > them, so finally the boards were laid out again to incorporate all > those > mods onto the new boards - the result was Rev B.? I believe that > happened in 2003. > > A fully upgraded early K2 will perform just like a brand new one.? > One > witness to that fact is my SN 00020 which was a Field Test model. > > There are a substantial number of mod kits for the K2, and they are > listed on the K2 A to B upgrade instruction sheets. > The one thing that is not covered in those instructions is the > installation of the upgraded IF crystals (changed at SN 2560) and the > KSB2 mods such as the PSK mod and the widening of the KSB2 filter to > 2.4kHz instead of the original 2.1kHz. > > Also not covered is upgrading the KPA100 - the KPA100UPKT will > bring any > KPA100 up to the latest level.? The KPA100 does not carry a serial > number, so the latest level must be determined by inspection. If > toroids L16 and at RFC4 have blue cores, it is the latest. The older > ones have red cores at L15 and L16.? There have also been upgrades in > the KPA100 shield.? The latest has a 1/4 inch wide slot above the > SO239 > jack and has spring clips that ground the shield to the sides of the > base K2.? For other than the Field Test KPA100s, the board has not > been > changed. > > 73, > Don W3FPR > > On 6/25/2020 2:51 PM, barry halterman wrote: > > Could someone tell me main differences between the version A and > B for the > > K2? > > Is the version B being shipped now if ordered? > From dougzzz at gmail.com Thu Jun 25 17:40:55 2020 From: dougzzz at gmail.com (Douglas Zwiebel) Date: Thu, 25 Jun 2020 17:40:55 -0400 Subject: [Elecraft] N6TV recording K4 K3 In-Reply-To: References: Message-ID: Thanks to TV for doing these. I really think that while well intentioned, these recordings are "not much" in terms of comparing the two radios (or even just the K4 alone), unless you're an operator who is concerned about exactly the conditions (parameters) which are being used for the recordings. It's great to hear that "a neighbor" with a 65db over 9 signal can be "handled" with ease. I don't think many of us experience that scenario. RM just asked for a "pile-up" simulation. OK, that's good, but how well will the recording be an honest representation of what a human with headphones connected to the radio be? I mean, you can't see what 4K Ulta HD TV looks like by watching an example on an "older" TV. I am more concerned about how the radio works under "contest" conditions; that is, with many big signals on the band (not just one at 65db over 9) while trying to pull out 4th tier signals in a pileup. For me, that's the test that matters. I don't know how many guys on here are serious DXer or are serious contesters. For me, if the k4 can "pass the test" for the latter group, then the receiver should be fine for everybody else. Maybe FD will give us an idea (if recorded as forecast). But still, we are all listening through a myriad of different devices to hear / observe what we hope to discern about the K4 receiver. Finally, while it is encouraging that Elecraft can provide some "hints" about how to tweak the K4 to get to what TV is looking for, it is a reminder that this is still a work in progress. Patience is a virtue. de Doug KR2Q I have two K3 radios, original owner, both 3 digit SN, both "kit" form. From jlm124 at outlook.com Thu Jun 25 18:14:11 2020 From: jlm124 at outlook.com (John McBride) Date: Thu, 25 Jun 2020 22:14:11 +0000 Subject: [Elecraft] K3 DATA setting Message-ID: I am getting my K3 ready to use PSK31 on Field Day. 40 meters is configured for DATA A, but I can't change 20 or 15 meters from USB to DATA A. What direction or suggestion do you have to make this change. John McBride - N0UQC From k5wa at comcast.net Thu Jun 25 18:29:40 2020 From: k5wa at comcast.net (K5WA) Date: Thu, 25 Jun 2020 17:29:40 -0500 Subject: [Elecraft] K4 Question Message-ID: <116301d64b40$1ec53880$5c4fa980$@comcast.net> Bob, Thanks for taking the time to make this second recording and put up with us arm chair quarterbacks who are critiquing the results. ? I can?t wait to make my own recordings (assuming Gov. Newsome allows CA factories to open a bit more) and have critiques come my way. In the meantime, I?m drooling over the thought of having a K4 and getting my flame suit ready to go! ? Thanks es 73, Bob K5WA From n6tv at arrl.net Thu Jun 25 18:52:26 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Thu, 25 Jun 2020 15:52:26 -0700 Subject: [Elecraft] N6TV recording K4 K3 In-Reply-To: References: Message-ID: Hi Doug, I've been doing CW contests with the K3 for nearly 11 years now. After using an early release of the K4 firmware, which should only improve over time, I'm convinced that the K4 far outperforms the K3 in CW pileup scenarios, mainly due to much improved audio performance. I predict other Field Testers will come to the same conclusion, but I'll let them speak for themselves. Wayne can explain technically why this is the case (the K4 DAC hardware and CPU is 11 years newer and faster of course), but all I can ask is to listen closely to the first recording I posted . Please ignore the RFI artifacts during transmissions, and just listen to the callers, preferably with headphones and a good PC sound card, not a phone or tablet. Try to pick out a callsign from the pile. Then rewind and try to pick out the *other* callsign. I think you'll be able to get a partial or full callsign almost every time, assuming normal hearing and "contester ears," even though the stations are quite close to each other. In a K3, under similar conditions, I would often hear annoying "beat notes" or "buzzes" (audio distortion) with as few as two callers in the passband. I have yet to hear that in the K4, though of course I've only used it for 6 hours of contesting. But I've heard enough to place an order for a 2nd K4, mainly so that I can do SO2R with two identical radios. Disclosure: I am not paid or employed by Elecraft, I have never worked there, and I receive no compensation from the company beyond a small discount on the price paid for an early Field Test Unit, and the chance to play and provide direct feedback to the company before the general release. Fun stuff (and more work than you might think). 73, Bob, N6TV On Thu, Jun 25, 2020 at 2:43 PM Douglas Zwiebel wrote: > Thanks to TV for doing these. > > I really think that while well intentioned, these recordings are "not much" > in terms of comparing the two radios (or even just the K4 alone), unless > you're an operator who is concerned about exactly the conditions > (parameters) which are being used for the recordings. > > It's great to hear that "a neighbor" with a 65db over 9 signal can be > "handled" with ease. > > I don't think many of us experience that scenario. > > RM just asked for a "pile-up" simulation. OK, that's good, but how well > will the recording be an honest representation of what a human with > headphones connected to the radio be? I mean, you can't see what 4K Ulta > HD TV looks like by watching an example on an "older" TV. > > I am more concerned about how the radio works under "contest" conditions; > that is, with many big signals on the band (not just one at 65db over 9) > while trying to pull out 4th tier signals in a pileup. For me, that's the > test that matters. > > I don't know how many guys on here are serious DXer or are serious > contesters. For me, if the k4 can "pass the test" for the latter group, > then the receiver should be fine for everybody else. Maybe FD will give us > an idea (if recorded as forecast). But still, we are all listening through > a myriad of different devices to hear / observe what we hope to discern > about the K4 receiver. > > Finally, while it is encouraging that Elecraft can provide some "hints" > about how to tweak the K4 to get to what TV is looking for, it is a > reminder that this is still a work in progress. > > Patience is a virtue. > > de Doug KR2Q > I have two K3 radios, original owner, both 3 digit SN, both "kit" form. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6tv at arrl.net > From pincon at erols.com Thu Jun 25 18:20:39 2020 From: pincon at erols.com (Charlie T) Date: Thu, 25 Jun 2020 18:20:39 -0400 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: <25293589.Klck04EMly@linux-veff> References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> <25293589.Klck04EMly@linux-veff> Message-ID: <011101d64b3e$df19bdb0$9d4d3910$@erols.com> This is sorta like demonstrating a 4K TV screen using a 1080 video. Too many detracting variables, recorder, internet, D to A, your audio system, etc. Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of kt5te at watershipfarm.com Sent: Thursday, June 25, 2020 8:32 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D I would have to say both sound better then my KX3 speaker. ;-) And I'm waiting for my K4D! BTW, the recording doesn't sound as good and my K2. :-) So we'll see if the K4 can hold up against the K2. :-) -- 73, William KT5TE On Wednesday, June 24, 2020 10:32:51 PM CDT Macy monkeys wrote: > Overall, the K3 sounded a little smoother to my ears. I do not own a > K3 nor have I ordered a K4. But I would be happy with either one! > > John K7FD > > > On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV wrote: > > > > 73, > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > kt5te at watershipfarm.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pincon at erols.com From frantz at pwpconsult.com Thu Jun 25 19:31:24 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Thu, 25 Jun 2020 19:31:24 -0400 Subject: [Elecraft] K3 DATA setting In-Reply-To: Message-ID: Make sure you aren't in Split mode. 73 Bill AE6JV On 6/25/20 at 6:14 PM, jlm124 at outlook.com (John McBride) wrote: >I am getting my K3 ready to use PSK31 on Field Day. 40 meters >is configured for DATA A, but I can't change 20 or 15 meters >from USB to DATA A. What direction or suggestion do you have to >make this change. ------------------------------------------------------------------------------------- Bill Frantz | Government is not reason, it is not eloquence, it is force; like 408-348-7900 | a fire, a troublesome servant and a fearful master. Never for a www.pwpconsult.com | moment should it be left to irresponsible action. Geo Washington From w1rm at comcast.net Thu Jun 25 19:50:24 2020 From: w1rm at comcast.net (Peter Chamalian) Date: Thu, 25 Jun 2020 19:50:24 -0400 Subject: [Elecraft] K4 on FD -- who? Message-ID: <013401d64b4b$73055cd0$59101670$@comcast.net> Please tell us which stations will be using K4's on FD? I want to pay close attention to them. Thanks Pete, W1RM W1RM at Comcast.net From donwilh at embarqmail.com Thu Jun 25 20:47:27 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 25 Jun 2020 20:47:27 -0400 Subject: [Elecraft] K3 DATA setting In-Reply-To: References: Message-ID: <5e5c8647-97f1-6ea7-3b64-90c403db99a5@embarqmail.com> John, Mode is a per band setting. So do not expect it to be 'sticky' from band to band. Once you go to the band for operation, you should be able to change the mode. 73, Don W3FPR On 6/25/2020 6:14 PM, John McBride wrote: > I am getting my K3 ready to use PSK31 on Field Day. 40 meters is configured for DATA A, but I can't change 20 or 15 meters from USB to DATA A. What direction or suggestion do you have to make this change. > From n6kr at elecraft.com Thu Jun 25 20:49:10 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 25 Jun 2020 17:49:10 -0700 Subject: [Elecraft] K4 on FD -- who? In-Reply-To: <013401d64b4b$73055cd0$59101670$@comcast.net> References: <013401d64b4b$73055cd0$59101670$@comcast.net> Message-ID: Hi Pete, I'll be on (N6KR), and hopefully Eric (WA6HHQ). Certainly K6XX (Bob) and K6KR (Dick). I can think of at least four more off the top of my head but we'll let them weigh in if they want. Wayne > On Jun 25, 2020, at 4:50 PM, Peter Chamalian wrote: > > Please tell us which stations will be using K4's on FD? I want to pay close > attention to them. > > > > Thanks > > > > > > Pete, W1RM > > W1RM at Comcast.net > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From ed at w0yk.com Thu Jun 25 21:22:11 2020 From: ed at w0yk.com (Ed Muns) Date: Thu, 25 Jun 2020 18:22:11 -0700 Subject: [Elecraft] K4 on FD -- who? In-Reply-To: References: <013401d64b4b$73055cd0$59101670$@comcast.net> Message-ID: <029e01d64b58$383c4ed0$a8b4ec70$@w0yk.com> I plan to operate with the K4D as I can make time: CW, RTTY, SSB and possibly FT4/8. 73, Ed W0YK -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Wayne Burdick Sent: 25 June, 2020 17:49 To: Peter Chamalian Cc: Elecraft Reflector Subject: Re: [Elecraft] K4 on FD -- who? Hi Pete, I'll be on (N6KR), and hopefully Eric (WA6HHQ). Certainly K6XX (Bob) and K6KR (Dick). I can think of at least four more off the top of my head but we'll let them weigh in if they want. Wayne > On Jun 25, 2020, at 4:50 PM, Peter Chamalian wrote: > > Please tell us which stations will be using K4's on FD? I want to pay close > attention to them. > > > > Thanks > > > > > > Pete, W1RM > > W1RM at Comcast.net > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ed at w0yk.com From rick at tavan.com Thu Jun 25 21:36:42 2020 From: rick at tavan.com (Rick Tavan) Date: Thu, 25 Jun 2020 18:36:42 -0700 Subject: [Elecraft] K4 on FD -- who? In-Reply-To: References: <013401d64b4b$73055cd0$59101670$@comcast.net> Message-ID: I plan to be on part-time from home in Saratoga, CA (SCV section) with a K4D. /Rick N6XI On Thu, Jun 25, 2020 at 5:51 PM Wayne Burdick wrote: > Hi Pete, > > I'll be on (N6KR), and hopefully Eric (WA6HHQ). Certainly K6XX (Bob) and > K6KR (Dick). I can think of at least four more off the top of my head but > we'll let them weigh in if they want. > > Wayne > > > > On Jun 25, 2020, at 4:50 PM, Peter Chamalian wrote: > > > > Please tell us which stations will be using K4's on FD? I want to pay > close > > attention to them. > > > > > > > > Thanks > > > > > > > > > > > > Pete, W1RM > > > > W1RM at Comcast.net > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to n6kr at elecraft.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rtavan at gmail.com > -- -- Rick Tavan Truckee and Saratoga, CA From tcowan at my321.net Fri Jun 26 00:04:17 2020 From: tcowan at my321.net (Ted Cowan) Date: Thu, 25 Jun 2020 22:04:17 -0600 Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 Message-ID: I am looking to buy an Elecraft XG1 or XG2, either built and working or in kit form. 73, Ted NA7C From k2vco.vic at gmail.com Fri Jun 26 01:25:30 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Fri, 26 Jun 2020 08:25:30 +0300 Subject: [Elecraft] N6TV recording K4 K3 In-Reply-To: References: Message-ID: <02917AF8-C245-473E-A3D7-89A3F85C0197@gmail.com> One of the most exciting experiences in my life as a ham was participating in the field test of the K3. I once sat in front of it and turned it on and off more than a hundred times in a row to verify that a firmware fix was successful. The K4 testers are both dedicated volunteers ? and lucky guys. Victor 4X6GP > On 26 Jun 2020, at 1:53, Bob Wilson, N6TV wrote: > > Fun stuff (and more work than you might think). From n6kr at elecraft.com Fri Jun 26 01:44:08 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 25 Jun 2020 22:44:08 -0700 Subject: [Elecraft] N6TV recording K4 K3 In-Reply-To: <02917AF8-C245-473E-A3D7-89A3F85C0197@gmail.com> References: <02917AF8-C245-473E-A3D7-89A3F85C0197@gmail.com> Message-ID: There's a lot more than two :) 73, Wayne N6KR On Thu, Jun 25, 2020 at 10:28 PM Vic Rosenthal wrote: > One of the most exciting experiences in my life as a ham was participating > in the field test of the K3. I once sat in front of it and turned it on and > off more than a hundred times in a row to verify that a firmware fix was > successful. > > The K4 testers are both dedicated volunteers ? and lucky guys. > > Victor 4X6GP > > > On 26 Jun 2020, at 1:53, Bob Wilson, N6TV wrote: > > > > Fun stuff (and more work than you might think). > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From k2vco.vic at gmail.com Fri Jun 26 03:16:29 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Fri, 26 Jun 2020 10:16:29 +0300 Subject: [Elecraft] N6TV recording K4 K3 In-Reply-To: References: Message-ID: I should have said ?all of them are both dedicated and lucky.? Victor 4X6GP > On 26 Jun 2020, at 8:44, Wayne Burdick wrote: > > ? > There's a lot more than two :) > > 73, > Wayne > N6KR > >> On Thu, Jun 25, 2020 at 10:28 PM Vic Rosenthal wrote: >> One of the most exciting experiences in my life as a ham was participating in the field test of the K3. I once sat in front of it and turned it on and off more than a hundred times in a row to verify that a firmware fix was successful. >> >> The K4 testers are both dedicated volunteers ? and lucky guys. >> >> Victor 4X6GP >> >> > On 26 Jun 2020, at 1:53, Bob Wilson, N6TV wrote: >> > >> > Fun stuff (and more work than you might think). >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6kr at elecraft.com From ray2.s at btinternet.com Fri Jun 26 06:27:52 2020 From: ray2.s at btinternet.com (Ray Spreadbury) Date: Fri, 26 Jun 2020 11:27:52 +0100 Subject: [Elecraft] K3S Keyboard macro scripts Message-ID: <00ba01d64ba4$72dc7aa0$58956fe0$@btinternet.com> I have recently used my K3S for SSB contesting with the WinTest logging program. I used the excellent Wintest Scripts from Bob N6TV, to send CQ from the F1 key, Thank You QRZ, from the F3 key etc , which sent the messages I had recorded in the K3S M1.M4 memory banks using the DVK recorder. I would like to do similar in SSB contests using N1MM ie. from the K3S M1.M4 memory banks, rather than recording .wav files into N1MM. Are there suitable macros available to do this? 73 Ray G3XLG From ve3iay at gmail.com Fri Jun 26 07:13:51 2020 From: ve3iay at gmail.com (Richard Ferch) Date: Fri, 26 Jun 2020 07:13:51 -0400 Subject: [Elecraft] K3S Keyboard macro scripts Message-ID: This question is addressed in the online N1MM+ documentation, under "Supported radios > Elecraft > K3 and K3S". You can go directly to the answer by opening the "Supported radios" page on the web site, typing Ctrl+F to open your browser's Search feature, and typing DVR into your browser's search box. 73, Rich VE3KI G3XLG asked: I would like to do similar in SSB contests using N1MM ie. from the K3S M1.M4 memory banks, rather than recording .wav files into N1MM. Are there suitable macros available to do this? From AB1DD at comcast.net Fri Jun 26 07:58:36 2020 From: AB1DD at comcast.net (AB1DD) Date: Fri, 26 Jun 2020 07:58:36 -0400 Subject: [Elecraft] K3S Keyboard macro scripts In-Reply-To: <00ba01d64ba4$72dc7aa0$58956fe0$@btinternet.com> References: <00ba01d64ba4$72dc7aa0$58956fe0$@btinternet.com> Message-ID: <6756b866-f5a8-d353-1dba-05dda82b34e4@comcast.net> Ray, Look at the SWT/SWH commands. For example, SWT21; will play memory M1, SWH21; will do M1-RPT. You can also change memory banks, record etc. from commands. -- 73, Carl AB1DD Resistance is futile. (don't know about reactance, though) From c-hawley at illinois.edu Fri Jun 26 08:16:19 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Fri, 26 Jun 2020 12:16:19 +0000 Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 In-Reply-To: References: Message-ID: I probably want to keep my XG2 and XG3, but I'm not familiar with an XG1. What is it? Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Ted Cowan Sent: Thursday, June 25, 2020 11:04 PM To: elecraft at mailman.qth.net Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 I am looking to buy an Elecraft XG1 or XG2, either built and working or in kit form. 73, Ted NA7C ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-hawley at illinois.edu From john at kk9a.com Fri Jun 26 08:19:49 2020 From: john at kk9a.com (john at kk9a.com) Date: Fri, 26 Jun 2020 07:19:49 -0500 Subject: [Elecraft] K3S Keyboard macro scripts Message-ID: <20200626071949.Horde.GBv8fcrmz3kVhauiSsIe3ee@www11.qth.com> Perhaps N6EE's excellent Writelog DVR instructions would be helpful setting up N1MM: https://s3.amazonaws.com/files.qrz.com/e/n6ee/Key.pdf John KK9A Ray G3XLG wrote: I have recently used my K3S for SSB contesting with the WinTest logging program. I used the excellent Wintest Scripts from Bob N6TV, to send CQ from the F1 key, Thank You QRZ, from the F3 key etc , which sent the messages I had recorded in the K3S M1.M4 memory banks using the DVK recorder. I would like to do similar in SSB contests using N1MM ie. from the K3S M1.M4 memory banks, rather than recording .wav files into N1MM. Are there suitable macros available to do this? 73 Ray G3XLG From john at kk9a.com Fri Jun 26 09:23:36 2020 From: john at kk9a.com (john at kk9a.com) Date: Fri, 26 Jun 2020 08:23:36 -0500 Subject: [Elecraft] N6TV recording K4 K3 Message-ID: <20200626082336.Horde.ENTGMckhhSP_KgZKq3RO4rS@www11.qth.com> I know that your post said to ignore the transmissions but why is it so bad? Like many I listened before reading the text and wondering why I was having problems copying what was sent. Any recordings the I have made with a K3S using either a Sony DVR or a computer have been quite clear. Is there RFI on your SSB transmissions? John KK9A Bob Wilson, N6TV wrote: Hi Doug, I've been doing CW contests with the K3 for nearly 11 years now. After using an early release of the K4 firmware, which should only improve over time, I'm convinced that the K4 far outperforms the K3 in CW pileup scenarios, mainly due to much improved audio performance. I predict other Field Testers will come to the same conclusion, but I'll let them speak for themselves. Wayne can explain technically why this is the case (the K4 DAC hardware and CPU is 11 years newer and faster of course), but all I can ask is to listen closely to the first recording I posted . Please ignore the RFI artifacts during transmissions, and just listen to the callers, preferably with headphones and a good PC sound card, not a phone or tablet. Try to pick out a callsign from the pile. Then rewind and try to pick out the *other* callsign. I think you'll be able to get a partial or full callsign almost every time, assuming normal hearing and "contester ears," even though the stations are quite close to each other. In a K3, under similar conditions, I would often hear annoying "beat notes" or "buzzes" (audio distortion) with as few as two callers in the passband. I have yet to hear that in the K4, though of course I've only used it for 6 hours of contesting. But I've heard enough to place an order for a 2nd K4, mainly so that I can do SO2R with two identical radios. Disclosure: I am not paid or employed by Elecraft, I have never worked there, and I receive no compensation from the company beyond a small discount on the price paid for an early Field Test Unit, and the chance to play and provide direct feedback to the company before the general release. Fun stuff (and more work than you might think). 73, Bob, N6TV From wlbaber at bellsouth.net Fri Jun 26 09:43:42 2020 From: wlbaber at bellsouth.net (WILLIE BABER) Date: Fri, 26 Jun 2020 13:43:42 +0000 (UTC) Subject: [Elecraft] N6TV recording K4 K3 In-Reply-To: References: Message-ID: <1122057116.140677.1593179022558@mail.yahoo.com> No disclosure required, Bob.? Credit where credit is due (to Elecraft); just based on the k3 alone, I believe you, hi. The only reason I would not purchase k4 is because of k3/k3s.? One of mine is 12 years old updated and performs just like k3s. I have three of them for so2r plus in band so2r (lp), requiring a third one. Try within band so2r on any other pair of radios, lp. What does this say about k4?? The only issue has been waiting for it, similar to kpa1500.? They are not going to release it until it is 99.9999 percent there (of course the virus is in the mix too). Elecraft deserves the credit until they do not deserve it...no sign of that since they got started. 73, will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Thursday, June 25, 2020, 4:53:16 PM MDT, Bob Wilson, N6TV wrote: Hi Doug, I've been doing CW contests with the K3 for nearly 11 years now.? After using an early release of the K4 firmware, which should only improve over time, I'm convinced that the K4 far outperforms the K3 in CW pileup scenarios, mainly due to much improved audio performance.? I predict other Field Testers will come to the same conclusion, but I'll let them speak for themselves. Wayne can explain technically why this is the case (the K4 DAC hardware and CPU is 11 years newer and faster of course), but all I can ask is to listen closely to the first recording I posted . Please ignore the RFI artifacts during transmissions, and just listen to the callers, preferably with headphones and a good PC sound card, not a phone or tablet.? Try to pick out a callsign from the pile.? Then rewind and try to pick out the *other* callsign.? I think you'll be able to get a partial or full callsign almost every time, assuming normal hearing and "contester ears," even though the stations are quite close to each other. In a K3, under similar conditions, I would often hear annoying "beat notes" or "buzzes" (audio distortion) with as few as two callers in the passband. I have yet to hear that in the K4, though of course I've only used it for 6 hours of contesting. But I've heard enough to place an order for a 2nd K4, mainly so that I can do SO2R with two identical radios. Disclosure:? I am not paid or employed by Elecraft, I have never worked there, and I receive no compensation from the company beyond a small discount on the price paid for an early Field Test Unit, and the chance to play and provide direct feedback to the company before the general release.? Fun stuff (and more work than you might think). 73, Bob, N6TV On Thu, Jun 25, 2020 at 2:43 PM Douglas Zwiebel wrote: > Thanks to TV for doing these. > > I really think that while well intentioned, these recordings are "not much" > in terms of comparing the two radios (or even just the K4 alone), unless > you're an operator who is concerned about exactly the conditions > (parameters) which are being used for the recordings. > > It's great to hear that "a neighbor" with a 65db over 9 signal can be > "handled" with ease. > > I don't think many of us experience that scenario. > > RM just asked for a "pile-up" simulation.? OK, that's good, but how well > will the recording be an honest representation of what a human with > headphones connected to the radio be?? I mean, you can't see what 4K Ulta > HD TV looks like by watching an example on an "older" TV. > > I am more concerned about how the radio works under "contest" conditions; > that is, with many big signals on the band (not just one at 65db over 9) > while trying to pull out 4th tier signals in a pileup.? For me, that's the > test that matters. > > I don't know how many guys on here are serious DXer or are serious > contesters.? For me, if the k4 can "pass the test" for the latter group, > then the receiver should be fine for everybody else.? Maybe FD will give us > an idea (if recorded as forecast).? But still, we are all listening through > a myriad of different devices to hear / observe what we hope to discern > about the K4 receiver. > > Finally, while it is encouraging that Elecraft can provide some "hints" > about how to tweak the K4 to get to what TV is looking for, it is a > reminder that this is still a work in progress. > > Patience is a virtue. > > de Doug KR2Q > I have two K3 radios, original owner, both 3 digit SN, both "kit" form. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6tv at arrl.net > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wlbaber at bellsouth.net From ve3nr at bell.net Fri Jun 26 09:51:55 2020 From: ve3nr at bell.net (Bert) Date: Fri, 26 Jun 2020 09:51:55 -0400 Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 In-Reply-To: References: Message-ID: <0f1c096a-bc30-2c57-8e57-e6253b994a35@bell.net> The best way to find out is to Google Elecraft XG1. Bert VE3NR On 2020-06-26 8:16, hawley, charles j jr wrote: > I probably want to keep my XG2 and XG3, but I'm not familiar with an XG1. What is it? > > Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > > ________________________________ > From: elecraft-bounces at mailman.qth.net on behalf of Ted Cowan > Sent: Thursday, June 25, 2020 11:04 PM > To: elecraft at mailman.qth.net > Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 > > I am looking to buy an Elecraft XG1 or XG2, either built and working or in > kit form. > > 73, Ted NA7C > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ve3nr at bell.net From dave at w8fgu.com Fri Jun 26 09:00:35 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Fri, 26 Jun 2020 13:00:35 +0000 Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 In-Reply-To: References: Message-ID: It was the first iteration of the XG2. It was only one band as opposed to 3 on the XG2. It went out of production after the XG2 release. I only know because I was asked to produce an enclosure for an XG1 and like you, never heard of it until that point. 73, Dave W8FGU ------ Original Message ------ From: "hawley, charles j jr" To: "Ted Cowan" ; "elecraft at mailman.qth.net" Sent: 6/26/2020 8:16:19 AM Subject: Re: [Elecraft] Want to buy: Elecraft XG1 or XG2 >I probably want to keep my XG2 and XG3, but I'm not familiar with an XG1. What is it? > >Chuck Hawley >c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > >________________________________ >From: elecraft-bounces at mailman.qth.net on behalf of Ted Cowan >Sent: Thursday, June 25, 2020 11:04 PM >To: elecraft at mailman.qth.net >Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 > >I am looking to buy an Elecraft XG1 or XG2, either built and working or in >kit form. > >73, Ted NA7C >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to c-hawley at illinois.edu >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to dave at w8fgu.com From MJGillen at yahoo.com Fri Jun 26 10:25:05 2020 From: MJGillen at yahoo.com (Michael Gillen) Date: Fri, 26 Jun 2020 07:25:05 -0700 Subject: [Elecraft] Looking for the P3SVGA board for my P3 panadapter In-Reply-To: <0f1c096a-bc30-2c57-8e57-e6253b994a35@bell.net> References: <0f1c096a-bc30-2c57-8e57-e6253b994a35@bell.net> Message-ID: <04BC179B-99F8-4B52-BF00-06E665B9F33D@yahoo.com> I am looking for the P3SVGA board for my P3 panadapter. Right now they are ?discontinued? on the Elecraft web page so looking for information on how to get one in the near future. 73, Michael KK6RWK From c-hawley at illinois.edu Fri Jun 26 10:37:48 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Fri, 26 Jun 2020 14:37:48 +0000 Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 In-Reply-To: <0f1c096a-bc30-2c57-8e57-e6253b994a35@bell.net> References: , <0f1c096a-bc30-2c57-8e57-e6253b994a35@bell.net> Message-ID: Of course! I see it's like an XG-2 but only has 40M output instead of three bands. Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Bert Sent: Friday, June 26, 2020 8:51 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Want to buy: Elecraft XG1 or XG2 The best way to find out is to Google Elecraft XG1. Bert VE3NR On 2020-06-26 8:16, hawley, charles j jr wrote: > I probably want to keep my XG2 and XG3, but I'm not familiar with an XG1. What is it? > > Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > > ________________________________ > From: elecraft-bounces at mailman.qth.net on behalf of Ted Cowan > Sent: Thursday, June 25, 2020 11:04 PM > To: elecraft at mailman.qth.net > Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 > > I am looking to buy an Elecraft XG1 or XG2, either built and working or in > kit form. > > 73, Ted NA7C > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ve3nr at bell.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-hawley at illinois.edu From n6tv at arrl.net Fri Jun 26 11:39:03 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Fri, 26 Jun 2020 08:39:03 -0700 Subject: [Elecraft] N6TV recording K4 K3 In-Reply-To: <20200626082336.Horde.ENTGMckhhSP_KgZKq3RO4rS@www11.qth.com> References: <20200626082336.Horde.ENTGMckhhSP_KgZKq3RO4rS@www11.qth.com> Message-ID: On Fri, Jun 26, 2020 at 6:24 AM wrote: > I know that your post said to ignore the transmissions but why is it > so bad? 1500W. Shack is right below the antenna. Analog connection to microHAM MK2R+ sound card (others have commented they had similar problems keeping RF out of this device). Like many I listened before reading the text and wondering > why I was having problems copying what was sent. Radio was in full QSK mode. The K4 QSK is much faster than the K3, so you hear much more band noise between elements. Sidetone volume was low. Band noise was high. > Any recordings the I have made with a K3S using either a Sony DVR or a > computer have been > quite clear. Is there RFI on your SSB transmissions? > No RFI into the radio, just into the recording device. Recordings made by the radio's sound card will have no RFI issues. But SO2R recordings require an external sound card. 73, Bob, N6TV From jlm124 at outlook.com Fri Jun 26 11:41:49 2020 From: jlm124 at outlook.com (John McBride) Date: Fri, 26 Jun 2020 15:41:49 +0000 Subject: [Elecraft] K3 DATA setting In-Reply-To: <5e5c8647-97f1-6ea7-3b64-90c403db99a5@embarqmail.com> References: , <5e5c8647-97f1-6ea7-3b64-90c403db99a5@embarqmail.com> Message-ID: Thanks for the replies. I am not using split mode, and am trying to make the change from USB to DATA A in the individual bands of 20 and 15 meters. Yes, the change was made successfully for 40 meters from LSB to DATA A. Any thing else I should check? Knowing me there is probably an easy answer. John ________________________________ From: Don Wilhelm Sent: Thursday, June 25, 2020 6:47 PM To: John McBride ; elecraft at mailman.qth.net Subject: Re: [Elecraft] K3 DATA setting John, Mode is a per band setting. So do not expect it to be 'sticky' from band to band. Once you go to the band for operation, you should be able to change the mode. 73, Don W3FPR On 6/25/2020 6:14 PM, John McBride wrote: > I am getting my K3 ready to use PSK31 on Field Day. 40 meters is configured for DATA A, but I can't change 20 or 15 meters from USB to DATA A. What direction or suggestion do you have to make this change. > From KX3.2 at ColdRocksHotBrooms.com Fri Jun 26 13:02:00 2020 From: KX3.2 at ColdRocksHotBrooms.com (Lynn W. Taylor, WB6UUT) Date: Fri, 26 Jun 2020 10:02:00 -0700 Subject: [Elecraft] Just FYI: "hacking/ransom" Message-ID: I just received a fairly threatening E-Mail claiming that my account was hacked. The message did not come through my account, it was spoofed. Don't fall for these. Don't pay. Calling these guys "hackers" is an insult to actual hackers. 73 -- Lynn From nr4c at widomaker.com Fri Jun 26 13:35:30 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 26 Jun 2020 13:35:30 -0400 Subject: [Elecraft] K3 DATA setting In-Reply-To: References: Message-ID: <372CA908-ADF4-48C0-9058-F275B4D93F7C@widomaker.com> Does your software have anything to do with this? Sent from my iPhone ...nr4c. bill > On Jun 26, 2020, at 11:43 AM, John McBride wrote: > > ?Thanks for the replies. I am not using split mode, and am trying to make the change from USB to DATA A in the individual bands of 20 and 15 meters. Yes, the change was made successfully for 40 meters from LSB to DATA A. Any thing else I should check? Knowing me there is probably an easy answer. > > John > ________________________________ > From: Don Wilhelm > Sent: Thursday, June 25, 2020 6:47 PM > To: John McBride ; elecraft at mailman.qth.net > Subject: Re: [Elecraft] K3 DATA setting > > John, > > Mode is a per band setting. So do not expect it to be 'sticky' from > band to band. > Once you go to the band for operation, you should be able to change the > mode. > > 73, > Don W3FPR > >> On 6/25/2020 6:14 PM, John McBride wrote: >> I am getting my K3 ready to use PSK31 on Field Day. 40 meters is configured for DATA A, but I can't change 20 or 15 meters from USB to DATA A. What direction or suggestion do you have to make this change. >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From jlm124 at outlook.com Fri Jun 26 14:03:44 2020 From: jlm124 at outlook.com (John McBride) Date: Fri, 26 Jun 2020 18:03:44 +0000 Subject: [Elecraft] K3 DATA setting In-Reply-To: <372CA908-ADF4-48C0-9058-F275B4D93F7C@widomaker.com> References: , <372CA908-ADF4-48C0-9058-F275B4D93F7C@widomaker.com> Message-ID: No, it does not but thanks for asking. ________________________________ From: Nr4c Sent: Friday, June 26, 2020 11:35 AM To: John McBride Cc: elecraft at mailman.qth.net ; donwilh at embarqmail.com Subject: Re: [Elecraft] K3 DATA setting Does your software have anything to do with this? Sent from my iPhone ...nr4c. bill > On Jun 26, 2020, at 11:43 AM, John McBride wrote: > > ?Thanks for the replies. I am not using split mode, and am trying to make the change from USB to DATA A in the individual bands of 20 and 15 meters. Yes, the change was made successfully for 40 meters from LSB to DATA A. Any thing else I should check? Knowing me there is probably an easy answer. > > John > ________________________________ > From: Don Wilhelm > Sent: Thursday, June 25, 2020 6:47 PM > To: John McBride ; elecraft at mailman.qth.net > Subject: Re: [Elecraft] K3 DATA setting > > John, > > Mode is a per band setting. So do not expect it to be 'sticky' from > band to band. > Once you go to the band for operation, you should be able to change the > mode. > > 73, > Don W3FPR > >> On 6/25/2020 6:14 PM, John McBride wrote: >> I am getting my K3 ready to use PSK31 on Field Day. 40 meters is configured for DATA A, but I can't change 20 or 15 meters from USB to DATA A. What direction or suggestion do you have to make this change. >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From w6jhb at me.com Fri Jun 26 14:17:31 2020 From: w6jhb at me.com (James Bennett) Date: Fri, 26 Jun 2020 11:17:31 -0700 Subject: [Elecraft] K3 DATA setting In-Reply-To: References: <372CA908-ADF4-48C0-9058-F275B4D93F7C@widomaker.com> Message-ID: <2FAE9DDD-9C7A-4E6A-B962-318248A685EE@me.com> When you press the mode button on the K3, it should cycle through: USB?>CW?>DATA?>AM?>FM?> and then back to CW. What does your do? If it indeed displays DATA and you leave it there, then push and hold the AFX/Data MD button, turning the VFO-B knob should cycle you through: Data A?>AFSK A?FSK D?>PSK D?> and then back to DATA A. Your result? Jim / W6JHB > On Jun 26, 2020, at 11:03 AM, John McBride wrote: > > No, it does not but thanks for asking. > > ________________________________ > From: Nr4c > Sent: Friday, June 26, 2020 11:35 AM > To: John McBride > Cc: elecraft at mailman.qth.net ; donwilh at embarqmail.com > Subject: Re: [Elecraft] K3 DATA setting > > Does your software have anything to do with this? > > Sent from my iPhone > ...nr4c. bill > > >> On Jun 26, 2020, at 11:43 AM, John McBride wrote: >> >> ?Thanks for the replies. I am not using split mode, and am trying to make the change from USB to DATA A in the individual bands of 20 and 15 meters. Yes, the change was made successfully for 40 meters from LSB to DATA A. Any thing else I should check? Knowing me there is probably an easy answer. >> >> John >> ________________________________ >> From: Don Wilhelm >> Sent: Thursday, June 25, 2020 6:47 PM >> To: John McBride ; elecraft at mailman.qth.net >> Subject: Re: [Elecraft] K3 DATA setting >> >> John, >> >> Mode is a per band setting. So do not expect it to be 'sticky' from >> band to band. >> Once you go to the band for operation, you should be able to change the >> mode. >> >> 73, >> Don W3FPR >> >>> On 6/25/2020 6:14 PM, John McBride wrote: >>> I am getting my K3 ready to use PSK31 on Field Day. 40 meters is configured for DATA A, but I can't change 20 or 15 meters from USB to DATA A. What direction or suggestion do you have to make this change. >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to nr4c at widomaker.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6jhb at me.com From c-hawley at illinois.edu Fri Jun 26 14:24:36 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Fri, 26 Jun 2020 18:24:36 +0000 Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 In-Reply-To: References: , Message-ID: OK, Hi Dave, Great enclosures BTW. I just got out my XG2 and re-admired the enclosure! Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Dave Van Wallaghen Sent: Friday, June 26, 2020 8:00 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Want to buy: Elecraft XG1 or XG2 It was the first iteration of the XG2. It was only one band as opposed to 3 on the XG2. It went out of production after the XG2 release. I only know because I was asked to produce an enclosure for an XG1 and like you, never heard of it until that point. 73, Dave W8FGU ------ Original Message ------ From: "hawley, charles j jr" To: "Ted Cowan" ; "elecraft at mailman.qth.net" Sent: 6/26/2020 8:16:19 AM Subject: Re: [Elecraft] Want to buy: Elecraft XG1 or XG2 >I probably want to keep my XG2 and XG3, but I'm not familiar with an XG1. What is it? > >Chuck Hawley >c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > >________________________________ >From: elecraft-bounces at mailman.qth.net on behalf of Ted Cowan >Sent: Thursday, June 25, 2020 11:04 PM >To: elecraft at mailman.qth.net >Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 > >I am looking to buy an Elecraft XG1 or XG2, either built and working or in >kit form. > >73, Ted NA7C >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to c-hawley at illinois.edu >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to dave at w8fgu.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to c-hawley at illinois.edu From kl7uw at acsalaska.net Fri Jun 26 17:25:36 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Fri, 26 Jun 2020 13:25:36 -0800 Subject: [Elecraft] FD on 6m from Alaska Message-ID: <202006262126.05QLQ6ca018236@mail42c28.carrierzone.com> I plan to operate class-D on 6m FT8 during FD. I will be running my K3+KXPA100 (80w) with a 3-element yagi pointed SE (favoring the West Coast). This will be casual and intermittent calling/monitoring. I will call odd sequence (as I will be west of all except HI). Per special rules my log will be added to KL7AN which traditionally is the Moosehorn ARC FD station call. I have copied stations as far as NM on 50.313. Most likely to work Pac NW stations (K7/VE7/VE6). 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From nr4c at widomaker.com Fri Jun 26 18:24:17 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 26 Jun 2020 18:24:17 -0400 Subject: [Elecraft] K3 DATA setting In-Reply-To: References: Message-ID: <3A23371B-74D3-4CE9-913B-B6778D0043E8@widomaker.com> Please note that if you are trying to get SPLIT mode On. Both VFOs must be in same DATA mode before you activate SPLIT. Tap A>B twice quickly to do this. Sent from my iPhone ...nr4c. bill > On Jun 26, 2020, at 2:03 PM, John McBride wrote: > > ? > No, it does not but thanks for asking. > > From: Nr4c > Sent: Friday, June 26, 2020 11:35 AM > To: John McBride > Cc: elecraft at mailman.qth.net ; donwilh at embarqmail.com > Subject: Re: [Elecraft] K3 DATA setting > > Does your software have anything to do with this? > > Sent from my iPhone > ...nr4c. bill > > > > On Jun 26, 2020, at 11:43 AM, John McBride wrote: > > > > ?Thanks for the replies. I am not using split mode, and am trying to make the change from USB to DATA A in the individual bands of 20 and 15 meters. Yes, the change was made successfully for 40 meters from LSB to DATA A. Any thing else I should check? Knowing me there is probably an easy answer. > > > > John > > ________________________________ > > From: Don Wilhelm > > Sent: Thursday, June 25, 2020 6:47 PM > > To: John McBride ; elecraft at mailman.qth.net > > Subject: Re: [Elecraft] K3 DATA setting > > > > John, > > > > Mode is a per band setting. So do not expect it to be 'sticky' from > > band to band. > > Once you go to the band for operation, you should be able to change the > > mode. > > > > 73, > > Don W3FPR > > > >> On 6/25/2020 6:14 PM, John McBride wrote: > >> I am getting my K3 ready to use PSK31 on Field Day. 40 meters is configured for DATA A, but I can't change 20 or 15 meters from USB to DATA A. What direction or suggestion do you have to make this change. > >> > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to nr4c at widomaker.com From k6dgw at foothill.net Fri Jun 26 19:52:48 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 26 Jun 2020 16:52:48 -0700 Subject: [Elecraft] K4 TERM mode Message-ID: <31c656ec-9d44-eee5-cf17-ce778e62f54f@foothill.net> Hope this isn't redundant ... anyone know if the K4 will control a K3 in the RRC 1258 K3 Twins mode? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County From m.cresap at yahoo.com Fri Jun 26 19:55:46 2020 From: m.cresap at yahoo.com (M Cresap) Date: Fri, 26 Jun 2020 23:55:46 +0000 (UTC) Subject: [Elecraft] K4 TERM mode In-Reply-To: <31c656ec-9d44-eee5-cf17-ce778e62f54f@foothill.net> References: <31c656ec-9d44-eee5-cf17-ce778e62f54f@foothill.net> Message-ID: <1279676999.4426563.1593215746908@mail.yahoo.com> Or will a K3/0 be able to control a K4? 73, Mike, W3IP On Friday, June 26, 2020, 7:53:37 PM EDT, Fred Jensen wrote: Hope this isn't redundant ... anyone know if the K4 will control a K3 in the RRC 1258 K3 Twins mode? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to m.cresap at yahoo.com From kevinr at coho.net Fri Jun 26 19:58:36 2020 From: kevinr at coho.net (kevinr) Date: Fri, 26 Jun 2020 16:58:36 -0700 Subject: [Elecraft] Test Message-ID: I did not see the last email I sent the reflector Kevin.? KD5ONS From nv4c.ian at gmail.com Fri Jun 26 20:03:55 2020 From: nv4c.ian at gmail.com (Ian Kahn) Date: Fri, 26 Jun 2020 20:03:55 -0400 Subject: [Elecraft] Test In-Reply-To: References: Message-ID: Congrats, Kevin! You passed! 73 de, Ian, NV4C On Fri, Jun 26, 2020, 8:00 PM kevinr wrote: > I did not see the last email I sent the reflector > > Kevin. KD5ONS > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nv4c.ian at gmail.com From kevinr at coho.net Fri Jun 26 20:34:33 2020 From: kevinr at coho.net (kevinr) Date: Fri, 26 Jun 2020 17:34:33 -0700 Subject: [Elecraft] Ionospheric Digital database Message-ID: <243a0b80-dd93-16c2-f953-cd0d93ec8df6@coho.net> If you are interested in the ionosphere here is another resource. ?? Kevin.? KD5ONS From dxdx at optonline.net Fri Jun 26 20:41:45 2020 From: dxdx at optonline.net (Tony) Date: Fri, 26 Jun 2020 20:41:45 -0400 Subject: [Elecraft] Wanted: Elecraft K1 Message-ID: All: I'm looking for an Elecraft K1 with a late serial number. Will pay top dollar for mint condition unit with tuner and clean build. Email direct. Tony From kevinr at coho.net Fri Jun 26 21:23:19 2020 From: kevinr at coho.net (kevinr) Date: Fri, 26 Jun 2020 18:23:19 -0700 Subject: [Elecraft] URL??? Message-ID: Is is illegal to send a URL to the Elecraft Reflector? I have tried three times thus far to send one but the email never appears. catalog dot data dot gov slant dataset slant ionospheric-digital-database Replace each space dot space with a single . Replace each space slant space with a single / Hopefully this encrypted form of URL will pass the censor. ?? Kevin.? KD5ONS From rich at wc3t.us Fri Jun 26 21:36:02 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Fri, 26 Jun 2020 21:36:02 -0400 Subject: [Elecraft] URL??? In-Reply-To: References: Message-ID: You mean catalog.data.gov/dataset/ionospheric-digital-database? On Fri, Jun 26, 2020 at 21:23 kevinr wrote: > Is is illegal to send a URL to the Elecraft Reflector? > > I have tried three times thus far to send one but the email never appears. > > catalog dot data dot gov slant dataset slant ionospheric-digital-database > > Replace each space dot space with a single . > > Replace each space slant space with a single / > > Hopefully this encrypted form of URL will pass the censor. > > Kevin. KD5ONS > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rich at wc3t.us -- 72, Rich Hurd / WC3T / DMR: 3142737 Northampton County RACES, EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 (40?45.68' N 75?17.33' W) Grid: *FN20is* From rich at wc3t.us Fri Jun 26 21:36:33 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Fri, 26 Jun 2020 21:36:33 -0400 Subject: [Elecraft] Ionospheric Digital database In-Reply-To: <243a0b80-dd93-16c2-f953-cd0d93ec8df6@coho.net> References: <243a0b80-dd93-16c2-f953-cd0d93ec8df6@coho.net> Message-ID: This one made it On Fri, Jun 26, 2020 at 20:34 kevinr wrote: > If you are interested in the ionosphere here is another resource. > > > > Kevin. KD5ONS > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rich at wc3t.us -- 72, Rich Hurd / WC3T / DMR: 3142737 Northampton County RACES, EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 (40?45.68' N 75?17.33' W) Grid: *FN20is* From rich at wc3t.us Fri Jun 26 21:42:37 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Fri, 26 Jun 2020 21:42:37 -0400 Subject: [Elecraft] URL??? In-Reply-To: References: Message-ID: I am getting a bounce message from kevinr at coho.net. Everything else seems to be working fine. On Fri, Jun 26, 2020 at 21:23 kevinr wrote: > Is is illegal to send a URL to the Elecraft Reflector? > > I have tried three times thus far to send one but the email never appears. > > catalog dot data dot gov slant dataset slant ionospheric-digital-database > > Replace each space dot space with a single . > > Replace each space slant space with a single / > > Hopefully this encrypted form of URL will pass the censor. > > Kevin. KD5ONS > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rich at wc3t.us -- 72, Rich Hurd / WC3T / DMR: 3142737 Northampton County RACES, EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 (40?45.68' N 75?17.33' W) Grid: *FN20is* From w4ram at outlook.com Fri Jun 26 22:56:07 2020 From: w4ram at outlook.com (W4RAM) Date: Fri, 26 Jun 2020 19:56:07 -0700 (MST) Subject: [Elecraft] WTB KAT1 Internal Automatic Antenna Tuner Message-ID: <1593226567012-0.post@n2.nabble.com> Good morning, I am looking for a KAT1 IAAT for my Elecraft K1. I'm just asking if anyone has any available for sale. Thank you 73! Al W4RAM -- Sent from: http://elecraft.365791.n2.nabble.com/ From david.n5dch at gmail.com Fri Jun 26 23:22:25 2020 From: david.n5dch at gmail.com (David Herring) Date: Fri, 26 Jun 2020 21:22:25 -0600 Subject: [Elecraft] URL??? In-Reply-To: References: Message-ID: <65021CE1-F05F-43BB-8BAA-28090D2FA80A@gmail.com> I can be corrected if I?m wrong, but my understanding (and personal experience) is that the reflector does not send a copy of an email back to the sender. At least it?s never done it for me. I usually see my messages when someone responds to it and its included in their response. As far as the link you sent, it came through 5-9. I checked it out earlier. ;-) 73, David - N5DCH > On Jun 26, 2020, at 7:23 PM, kevinr wrote: > > Is is illegal to send a URL to the Elecraft Reflector? > > I have tried three times thus far to send one but the email never appears. > > catalog dot data dot gov slant dataset slant ionospheric-digital-database > > Replace each space dot space with a single . > > Replace each space slant space with a single / > > Hopefully this encrypted form of URL will pass the censor. > > Kevin. KD5ONS > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to david.n5dch at gmail.com From ab2tc at arrl.net Sat Jun 27 00:17:31 2020 From: ab2tc at arrl.net (ab2tc) Date: Fri, 26 Jun 2020 21:17:31 -0700 (MST) Subject: [Elecraft] URL??? In-Reply-To: <65021CE1-F05F-43BB-8BAA-28090D2FA80A@gmail.com> References: <65021CE1-F05F-43BB-8BAA-28090D2FA80A@gmail.com> Message-ID: <1593231451882-0.post@n2.nabble.com> Hi Kevin, I am not sure what the problem is, but the link to "catalog.data.gov/dataset/ionospheric-digital-database" in your original post works fine here. Interesting information as always from NOAA. I don't think there is any problem sending URLs (links) to the reflector. I can't comment on how the reflector responds (or not) to E-mail sent to it as I always use other means to communicate with it. I apologize if Nabble has added ads to this response. If it has, I will abandon Nabble and find other means to respond to reflector messages. AB2TC - Knut David Herring wrote > I can be corrected if I?m wrong, but my understanding (and personal > experience) is that the reflector does not send a copy of an email back to > the sender. At least it?s never done it for me. I usually see my messages > when someone responds to it and its included in their response. > > As far as the link you sent, it came through 5-9. I checked it out > earlier. ;-) > > 73, > David - N5DCH > > > >> On Jun 26, 2020, at 7:23 PM, kevinr < > kevinr@ > > wrote: >> >> Is is illegal to send a URL to the Elecraft Reflector? >> >> I have tried three times thus far to send one but the email never >> appears. >> >> catalog dot data dot gov slant dataset slant ionospheric-digital-database >> >> Replace each space dot space with a single . >> >> Replace each space slant space with a single / >> >> Hopefully this encrypted form of URL will pass the censor. >> >> Kevin. KD5ONS >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto: > Elecraft at .qth >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to > david.n5dch@ > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto: > Elecraft at .qth > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to > lists+1215531472858-365791 at .nabble -- Sent from: http://elecraft.365791.n2.nabble.com/ From donwilh at embarqmail.com Sat Jun 27 02:30:51 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 27 Jun 2020 02:30:51 -0400 Subject: [Elecraft] URL??? In-Reply-To: <65021CE1-F05F-43BB-8BAA-28090D2FA80A@gmail.com> References: <65021CE1-F05F-43BB-8BAA-28090D2FA80A@gmail.com> Message-ID: <7b3368d0-ffe6-a828-8690-6871d0640f2b@embarqmail.com> That is a "feature" of gmail - it is not standard for the reflector. I guess gmail thinks that if you sent it, you do not want to see your post. I see all my posts to the reflector (non gmail address). 73, Don W3FPR On 6/26/2020 11:22 PM, David Herring wrote: > I can be corrected if I?m wrong, but my understanding (and personal experience) is that the reflector does not send a copy of an email back to the sender. At least it?s never done it for me. I usually see my messages when someone responds to it and its included in their response. > > As far as the link you sent, it came through 5-9. I checked it out earlier. ;-) From ehr at qrv.com Sat Jun 27 05:58:34 2020 From: ehr at qrv.com (E.H. Russell) Date: Sat, 27 Jun 2020 05:58:34 -0400 Subject: [Elecraft] FW: New CW audio recording: K3 vs. K4D References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> <25293589.Klck04EMly@linux-veff> <011101d64b3e$df19bdb0$9d4d3910$@erols.com> Message-ID: <000d01d64c69$85c42670$914c7350$@qrv.com> I finally got a chance to listen to the recordings. The K4 sounded very bottom heavy with band noise. I did a quick analysis on the spectrum analyzer and confirmed that the K3 envelope looks ok, but something is not right about the K4. The K3 is centered on about 450hz and is symmetrical, with steep skirts on both low and high end. The K4 appears to be set at the same center but it blossoms out on the lows, accounting for the low frequency band noise evident in the recording. The K4 filter high end is also soft. Spectrogram available here: http://www.qrv.com/download/K3K4CWspectrum.png The K3 is light blue and the K4 is green (the red and blue are unused channels). It looks like the DSP filter on the K4 may have a configuration problem. Tks, 73 Ed w2rf -----Original Message----- From: elecraft-bounces at mailman.qth.net > On Behalf Of Charlie T Sent: Thursday, June 25, 2020 6:21 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D This is sorta like demonstrating a 4K TV screen using a 1080 video. Too many detracting variables, recorder, internet, D to A, your audio system, etc. Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net < elecraft-bounces at mailman.qth.net> On Behalf Of kt5te at watershipfarm.com Sent: Thursday, June 25, 2020 8:32 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D I would have to say both sound better then my KX3 speaker. ;-) And I'm waiting for my K4D! BTW, the recording doesn't sound as good and my K2. :-) So we'll see if the K4 can hold up against the K2. :-) -- 73, William KT5TE On Wednesday, June 24, 2020 10:32:51 PM CDT Macy monkeys wrote: > Overall, the K3 sounded a little smoother to my ears. I do not own a > K3 nor have I ordered a K4. But I would be happy with either one! > > John K7FD > > > On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV < n6tv at arrl.net> wrote: > > > > 73, > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > kt5te at watershipfarm.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pincon at erols.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ehr at qrv.com From w2up at comcast.net Sat Jun 27 08:15:11 2020 From: w2up at comcast.net (Barry) Date: Sat, 27 Jun 2020 05:15:11 -0700 (MST) Subject: [Elecraft] K4 TERM mode In-Reply-To: <1279676999.4426563.1593215746908@mail.yahoo.com> References: <31c656ec-9d44-eee5-cf17-ce778e62f54f@foothill.net> <1279676999.4426563.1593215746908@mail.yahoo.com> Message-ID: <1593260111473-0.post@n2.nabble.com> I saw the K4 at Dayton last year. The remote connection was via Ethernet and directly between radios with no interface boxes such as remoterig. So unless there's also a K3 remote mode via serial port, too, the answer would be no. Barry W2UP Barry -- Sent from: http://elecraft.365791.n2.nabble.com/ From mbaileycrna at gmail.com Sat Jun 27 09:23:58 2020 From: mbaileycrna at gmail.com (Morgan Bailey) Date: Sat, 27 Jun 2020 08:23:58 -0500 Subject: [Elecraft] FW: New CW audio recording: K3 vs. K4D In-Reply-To: <000d01d64c69$85c42670$914c7350$@qrv.com> References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> <25293589.Klck04EMly@linux-veff> <011101d64b3e$df19bdb0$9d4d3910$@erols.com> <000d01d64c69$85c42670$914c7350$@qrv.com> Message-ID: Armchair analysis, not having the radio in front of the equipment, taking a compressed audio file and staking a claim...this is sadly funny. Go to Eham.net and look at the same thing by people who believe themselves an authority on smoke signals. I'll wait for my 2 K4's to arrive. I know I will be quite happy. The radios are feature rich and will take a learning curve. What makes a good/great radio is not just what the equipment on the bench reads out or measures. There is ergonomics, ease of operation, asthetic beauty, technical electronic construction and design that make the total package. For instance, Flex radios are plagued with problems in software, drivers, memory cards, multiple error messages, failure to boot taking 45 minutes to get the OS working properly, and besides, they are one of the most ugly radios on the market. People still buy the 6600M and use it for contesting even though it does not score in the top ten on Sherwood tests. Contests are still won every day with radios that are 30 years old and with new tech that are plagued with problems. If you want a stereo, then go buy a stereo and leave the audio analysis to the audiophiles, besides I doubt your ears are that good at any age. If one was an orchestra Maestro, then maybe this might be true but for the average ham, these clips sound great. There are known problems with the audio recordings like RF getting into the MK2R+. Now there is an area that Elecraft could surely work on and make their own seamless interface to the elecraft line for SO2R operation. On Sat, Jun 27, 2020 at 5:01 AM E.H. Russell wrote: > I finally got a chance to listen to the recordings. The K4 sounded very > bottom heavy with band noise. I did a quick analysis on the spectrum > analyzer and confirmed that the K3 envelope looks ok, but something is not > right about the K4. The K3 is centered on about 450hz and is symmetrical, > with steep skirts on both low and high end. The K4 appears to be set at the > same center but it blossoms out on the lows, accounting for the low > frequency band noise evident in the recording. The K4 filter high end is > also soft. > > > > Spectrogram available here: > > http://www.qrv.com/download/K3K4CWspectrum.png > > The K3 is light blue and the K4 is green (the red and blue are unused > channels). > > > > It looks like the DSP filter on the K4 may have a configuration problem. > > > > Tks, > > 73 Ed w2rf > > > > > > > > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > < > elecraft-bounces at mailman.qth.net > > On Behalf Of Charlie T > Sent: Thursday, June 25, 2020 6:21 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D > > > > This is sorta like demonstrating a 4K TV screen using a 1080 video. > > > > Too many detracting variables, recorder, internet, D to A, your audio > system, etc. > > > > Charlie k3ICH > > > > > > > > > > -----Original Message----- > > From: > elecraft-bounces at mailman.qth.net < elecraft-bounces at mailman.qth.net> > elecraft-bounces at mailman.qth.net> On Behalf Of > kt5te at watershipfarm.com > > Sent: Thursday, June 25, 2020 8:32 AM > > To: elecraft at mailman.qth.net > > Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D > > > > I would have to say both sound better then my KX3 speaker. ;-) And I'm > waiting for my > > K4D! BTW, the recording doesn't sound as good and my K2. :-) So we'll > > see if the K4 can > > hold up against the K2. :-) > > -- > > 73, William KT5TE > > > > On Wednesday, June 24, 2020 10:32:51 PM CDT Macy monkeys wrote: > > > Overall, the K3 sounded a little smoother to my ears. I do not own a > > > K3 nor have I ordered a K4. But I would be happy with either one! > > > > > > John K7FD > > > > > > > On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV < > n6tv at arrl.net> wrote: > > > > > > > > 73, > > > > > > ______________________________________________________________ > > > Elecraft mailing list > > > Home: > http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: > http://mailman.qth.net/mmfaq.htm > > > Post: mailto:Elecraft at mailman.qth.net > > > > > > This list hosted by: http://www.qsl.net Please > help > support this email > > > list: http://www.qsl.net/donate.html > Message delivered to > > > kt5te at watershipfarm.com > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: > http://www.qsl.net/donate.html Message > > delivered to pincon at erols.com > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: > http://www.qsl.net/donate.html > > Message delivered to ehr at qrv.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mbaileycrna at gmail.com > From ehr at qrv.com Sat Jun 27 10:17:34 2020 From: ehr at qrv.com (E.H. Russell) Date: Sat, 27 Jun 2020 10:17:34 -0400 Subject: [Elecraft] FW: New CW audio recording: K3 vs. K4D In-Reply-To: References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> <25293589.Klck04EMly@linux-veff> <011101d64b3e$df19bdb0$9d4d3910$@erols.com> <000d01d64c69$85c42670$914c7350$@qrv.com> Message-ID: <004001d64c8d$b40d0460$1c270d20$@qrv.com> Hi Morgan, The recorded audio stream accurately represents the output of the radio. The spectral analysis is also accurate. There is no claim asserted however, only to point out that in this particular test something does not seem to be right with the K4 filter. Others had reported it with comments such as a bassy sound, etc. and the analysis I provided merely quantifies that. I have professional experience using spectral analysis techniques and am positive that the analogy with smoke signal analysis is false. I know we all are expecting a great radio, and also that hiccups such is this in early tests are common. However it is essential that this sort of situation be clearly identified and documented during test to make sure it doesn?t leak out into production. I also have a K4D on order and am confident that the problem is either accidental or will be cured by delivery! Cheers, Ed / w2rf From: Morgan Bailey Sent: Saturday, June 27, 2020 9:24 AM To: E.H. Russell Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] FW: New CW audio recording: K3 vs. K4D Armchair analysis, not having the radio in front of the equipment, taking a compressed audio file and staking a claim...this is sadly funny. Go to Eham.net and look at the same thing by people who believe themselves an authority on smoke signals. I'll wait for my 2 K4's to arrive. I know I will be quite happy. The radios are feature rich and will take a learning curve. What makes a good/great radio is not just what the equipment on the bench reads out or measures. There is ergonomics, ease of operation, asthetic beauty, technical electronic construction and design that make the total package. For instance, Flex radios are plagued with problems in software, drivers, memory cards, multiple error messages, failure to boot taking 45 minutes to get the OS working properly, and besides, they are one of the most ugly radios on the market. People still buy the 6600M and use it for contesting even though it does not score in the top ten on Sherwood tests. Contests are still won every day with radios that are 30 years old and with new tech that are plagued with problems. If you want a stereo, then go buy a stereo and leave the audio analysis to the audiophiles, besides I doubt your ears are that good at any age. If one was an orchestra Maestro, then maybe this might be true but for the average ham, these clips sound great. There are known problems with the audio recordings like RF getting into the MK2R+. Now there is an area that Elecraft could surely work on and make their own seamless interface to the elecraft line for SO2R operation. On Sat, Jun 27, 2020 at 5:01 AM E.H. Russell > wrote: I finally got a chance to listen to the recordings. The K4 sounded very bottom heavy with band noise. I did a quick analysis on the spectrum analyzer and confirmed that the K3 envelope looks ok, but something is not right about the K4. The K3 is centered on about 450hz and is symmetrical, with steep skirts on both low and high end. The K4 appears to be set at the same center but it blossoms out on the lows, accounting for the low frequency band noise evident in the recording. The K4 filter high end is also soft. Spectrogram available here: http://www.qrv.com/download/K3K4CWspectrum.png The K3 is light blue and the K4 is green (the red and blue are unused channels). It looks like the DSP filter on the K4 may have a configuration problem. Tks, 73 Ed w2rf -----Original Message----- From: elecraft-bounces at mailman.qth.net > > > On Behalf Of Charlie T Sent: Thursday, June 25, 2020 6:21 PM To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D This is sorta like demonstrating a 4K TV screen using a 1080 video. Too many detracting variables, recorder, internet, D to A, your audio system, etc. Charlie k3ICH -----Original Message----- From: > elecraft-bounces at mailman.qth.net < > elecraft-bounces at mailman.qth.net > On Behalf Of > kt5te at watershipfarm.com Sent: Thursday, June 25, 2020 8:32 AM To: > elecraft at mailman.qth.net Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D I would have to say both sound better then my KX3 speaker. ;-) And I'm waiting for my K4D! BTW, the recording doesn't sound as good and my K2. :-) So we'll see if the K4 can hold up against the K2. :-) -- 73, William KT5TE On Wednesday, June 24, 2020 10:32:51 PM CDT Macy monkeys wrote: > Overall, the K3 sounded a little smoother to my ears. I do not own a > K3 nor have I ordered a K4. But I would be happy with either one! > > John K7FD > > > On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV < > n6tv at arrl.net > wrote: > > > > 73, > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: > mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > > kt5te at watershipfarm.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: > mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to > pincon at erols.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: > mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to > ehr at qrv.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to mbaileycrna at gmail.com From frantz at pwpconsult.com Sat Jun 27 10:27:52 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sat, 27 Jun 2020 10:27:52 -0400 Subject: [Elecraft] URL??? In-Reply-To: <65021CE1-F05F-43BB-8BAA-28090D2FA80A@gmail.com> Message-ID: Sending you a copy of your posts is an option with many email reflector software packages. I don't know about this one, since I always get my messages reflected, which is what I want. 73 Bill AE6JV On 6/26/20 at 11:22 PM, david.n5dch at gmail.com (David Herring) wrote: >I can be corrected if I?m wrong, but my understanding (and >personal experience) is that the reflector does not send a copy >of an email back to the sender. At least it?s never done it >for me. I usually see my messages when someone responds to it >and its included in their response. ----------------------------------------------------------------------- Bill Frantz |Security, like correctness, is| Periwinkle (408)348-7900 |not an add-on feature. - Attr-| 150 Rivermead Rd #235 www.pwpconsult.com |ibuted to Andrew Tanenbaum | Peterborough, NH 03458 From k1rdd73 at gmail.com Sat Jun 27 10:49:40 2020 From: k1rdd73 at gmail.com (Doug Daniels) Date: Sat, 27 Jun 2020 10:49:40 -0400 Subject: [Elecraft] KX2 power cable polarity? Message-ID: Just opened the box on my new KX2, and am about to put powerpoles on the power cable. Since both sides of the wire are black, which is the positive, the one with the white dashes? Thanks. -- --... ...-- Doug From nv4c.ian at gmail.com Sat Jun 27 10:55:08 2020 From: nv4c.ian at gmail.com (Ian Kahn) Date: Sat, 27 Jun 2020 10:55:08 -0400 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: References: Message-ID: The side with the white stripes us the positive. I just did the same thing last night. 73 de, Ian, NV4C On Sat, Jun 27, 2020, 10:52 AM Doug Daniels wrote: > Just opened the box on my new KX2, and am about to put powerpoles on the > power cable. Since both sides of the wire are black, which is the positive, > the one with the white dashes? > > Thanks. > > -- > > --... ...-- > Doug > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nv4c.ian at gmail.com > From gdt at lexort.com Sat Jun 27 11:09:07 2020 From: gdt at lexort.com (Greg Troxel) Date: Sat, 27 Jun 2020 11:09:07 -0400 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: (Ian Kahn's message of "Sat, 27 Jun 2020 10:55:08 -0400") References: Message-ID: Ian Kahn writes: > The side with the white stripes us the positive. I just did the same thing > last night. > > 73 de, > > Ian, NV4C > > On Sat, Jun 27, 2020, 10:52 AM Doug Daniels wrote: > >> Just opened the box on my new KX2, and am about to put powerpoles on the >> power cable. Since both sides of the wire are black, which is the positive, >> the one with the white dashes? And check this by measuring with a meter. See the manual, and check the radio itself, but on all Elecraft equipment I have seen, the outside of the barrel is ground and the inside is +12. 73 de n1dam From gus at oatbit.com Sat Jun 27 11:12:52 2020 From: gus at oatbit.com (Gus Holcomb) Date: Sat, 27 Jun 2020 08:12:52 -0700 Subject: [Elecraft] K4 on Digital Modes Message-ID: <512AA8E6-21F5-433F-ABCB-9F207D726511@oatbit.com> Hello everyone, As it gets closer to being able to actually have a K4, I was hoping someone would know how the radio will interact with a computer. I?m only personally familiar with using my kx3 + kxpa100 with a single audio interface and usb control cable on the computer. I read the documentation that said that flexradio style ?slices? would not be visible to the end user, but I?m not sure what the alternative is?. With the K4D, for instance, what interfaces are presented on the computer and how many of them are there? Will all over them be accessed over ethernet or can you also use USB? What software will you need to run on your computer? Can you run multiple copies of a wsjt-x and monitor different bands/frequencies simultaneously? Will you be able to transmit on each of those bands seamlessly? With the K4D each having a receiver and a sub-receiver can you monitor 4 bands or just 2? Thank you, Gus Holcomb km6yxb From pa0pje at xs4all.nl Sat Jun 27 12:09:15 2020 From: pa0pje at xs4all.nl (Peter Eijlander (PA0PJE)) Date: Sat, 27 Jun 2020 18:09:15 +0200 Subject: [Elecraft] URL??? In-Reply-To: <1593231451882-0.post@n2.nabble.com> References: <65021CE1-F05F-43BB-8BAA-28090D2FA80A@gmail.com> <1593231451882-0.post@n2.nabble.com> Message-ID: <902dff34-e567-7b08-bf37-ef0e94b9921b@xs4all.nl> The thing is that what you sent was not a URL. One should not omit the protocol... I copied the URL from my browser and pasted it here. It adds "https://" https://catalog.data.gov/dataset/ionospheric-digital-database is the true URL including the protocol and should be shown as such in any decent mail client and be clickable to launch your browser. 73, Peter Op 27-06-2020 om 06:17 schreef ab2tc: > Hi Kevin, > > I am not sure what the problem is, but the link to > "catalog.data.gov/dataset/ionospheric-digital-database" in your original > post works fine here. Interesting information as always from NOAA. I don't > think there is any problem sending URLs (links) to the reflector. I can't > comment on how the reflector responds (or not) to E-mail sent to it as I > always use other means to communicate with it. > > I apologize if Nabble has added ads to this response. If it has, I will > abandon Nabble and find other means to respond to reflector messages. > > AB2TC - Knut > > > David Herring wrote >> I can be corrected if I?m wrong, but my understanding (and personal >> experience) is that the reflector does not send a copy of an email back to >> the sender. At least it?s never done it for me. I usually see my messages >> when someone responds to it and its included in their response. >> >> As far as the link you sent, it came through 5-9. I checked it out >> earlier. ;-) >> >> 73, >> David - N5DCH >> >> >> >>> On Jun 26, 2020, at 7:23 PM, kevinr < > >> kevinr@ > >> > wrote: >>> >>> Is is illegal to send a URL to the Elecraft Reflector? >>> >>> I have tried three times thus far to send one but the email never >>> appears. >>> >>> catalog dot data dot gov slant dataset slant ionospheric-digital-database >>> >>> Replace each space dot space with a single . >>> >>> Replace each space slant space with a single / >>> >>> Hopefully this encrypted form of URL will pass the censor. >>> >>> Kevin. KD5ONS >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto: > >> Elecraft at .qth > >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to > >> david.n5dch@ > >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto: > >> Elecraft at .qth > >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to > >> lists+1215531472858-365791 at .nabble > > > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pa0pje at xs4all.nl > From n6kr at elecraft.com Sat Jun 27 12:28:24 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sat, 27 Jun 2020 09:28:24 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D In-Reply-To: <004001d64c8d$b40d0460$1c270d20$@qrv.com> References: <1A78A227-6E41-4559-9C08-C97D6434238E@charter.net> <25293589.Klck04EMly@linux-veff> <011101d64b3e$df19bdb0$9d4d3910$@erols.com> <000d01d64c69$85c42670$914c7350$@qrv.com> <004001d64c8d$b40d0460$1c270d20$@qrv.com> Message-ID: <7C74958D-6B33-4B0B-B903-500982BF8DB1@elecraft.com> The radio was using an interim firmware release with configuration work-arounds that were less than ideal. Also, the recording was done with external equipment adding its own artifacts and coloration. The setup wasn't vetted before the recording was posted. It most certainly will be next time :) Wayne N6KR > On Jun 27, 2020, at 7:17 AM, E.H. Russell wrote: > > Hi Morgan, > > > > The recorded audio stream accurately represents the output of the radio. The spectral analysis is also accurate. There is no claim asserted however, only to point out that in this particular test something does not seem to be right with the K4 filter. Others had reported it with comments such as a bassy sound, etc. and the analysis I provided merely quantifies that. I have professional experience using spectral analysis techniques and am positive that the analogy with smoke signal analysis is false. I know we all are expecting a great radio, and also that hiccups such is this in early tests are common. However it is essential that this sort of situation be clearly identified and documented during test to make sure it doesn?t leak out into production. > > > > I also have a K4D on order and am confident that the problem is either accidental or will be cured by delivery! > > > > Cheers, > > Ed / w2rf > > > > > > > > > > From: Morgan Bailey > Sent: Saturday, June 27, 2020 9:24 AM > To: E.H. Russell > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] FW: New CW audio recording: K3 vs. K4D > > > > Armchair analysis, not having the radio in front of the equipment, taking a compressed audio file and staking a claim...this is sadly funny. Go to Eham.net and look at the same thing by people who believe themselves an authority on smoke signals. > > > > I'll wait for my 2 K4's to arrive. I know I will be quite happy. The radios are feature rich and will take a learning curve. What makes a good/great radio is not just what the equipment on the bench reads out or measures. There is ergonomics, ease of operation, asthetic beauty, technical electronic construction and design that make the total package. For instance, Flex radios are plagued with problems in software, drivers, memory cards, multiple error messages, failure to boot taking 45 minutes to get the OS working properly, and besides, they are one of the most ugly radios on the market. People still buy the 6600M and use it for contesting even though it does not score in the top ten on Sherwood tests. Contests are still won every day with radios that are 30 years old and with new tech that are plagued with problems. If you want a stereo, then go buy a stereo and leave the audio analysis to the audiophiles, besides I doubt your ears are that good at any age. If one was an orchestra Maestro, then maybe this might be true but for the average ham, these clips sound great. There are known problems with the audio recordings like RF getting into the MK2R+. Now there is an area that Elecraft could surely work on and make their own seamless interface to the elecraft line for SO2R operation. > > > > On Sat, Jun 27, 2020 at 5:01 AM E.H. Russell > wrote: > > I finally got a chance to listen to the recordings. The K4 sounded very > bottom heavy with band noise. I did a quick analysis on the spectrum > analyzer and confirmed that the K3 envelope looks ok, but something is not > right about the K4. The K3 is centered on about 450hz and is symmetrical, > with steep skirts on both low and high end. The K4 appears to be set at the > same center but it blossoms out on the lows, accounting for the low > frequency band noise evident in the recording. The K4 filter high end is > also soft. > > > > Spectrogram available here: > > http://www.qrv.com/download/K3K4CWspectrum.png > > The K3 is light blue and the K4 is green (the red and blue are unused > channels). > > > > It looks like the DSP filter on the K4 may have a configuration problem. > > > > Tks, > > 73 Ed w2rf > > > > > > > > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > > > > > On Behalf Of Charlie T > Sent: Thursday, June 25, 2020 6:21 PM > To: elecraft at mailman.qth.net > > Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D > > > > This is sorta like demonstrating a 4K TV screen using a 1080 video. > > > > Too many detracting variables, recorder, internet, D to A, your audio > system, etc. > > > > Charlie k3ICH > > > > > > > > > > -----Original Message----- > > From: > > elecraft-bounces at mailman.qth.net < > > elecraft-bounces at mailman.qth.net > On Behalf Of > > kt5te at watershipfarm.com > > Sent: Thursday, June 25, 2020 8:32 AM > > To: > elecraft at mailman.qth.net > > Subject: Re: [Elecraft] New CW audio recording: K3 vs. K4D > > > > I would have to say both sound better then my KX3 speaker. ;-) And I'm > waiting for my > > K4D! BTW, the recording doesn't sound as good and my K2. :-) So we'll > > see if the K4 can > > hold up against the K2. :-) > > -- > > 73, William KT5TE > > > > On Wednesday, June 24, 2020 10:32:51 PM CDT Macy monkeys wrote: > >> Overall, the K3 sounded a little smoother to my ears. I do not own a > >> K3 nor have I ordered a K4. But I would be happy with either one! > >> > >> John K7FD > >> > >>> On Jun 24, 2020, at 7:24 PM, Bob Wilson, N6TV < > > n6tv at arrl.net > wrote: > >>> > >>> 73, > >> > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: > http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: > mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net Please help > support this email > >> list: http://www.qsl.net/donate.html > Message delivered to > >> > kt5te at watershipfarm.com > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: > mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: > http://www.qsl.net/donate.html Message > > delivered to > pincon at erols.com > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: > mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: > http://www.qsl.net/donate.html > > Message delivered to > ehr at qrv.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to mbaileycrna at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From wunder at wunderwood.org Sat Jun 27 12:34:12 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Sat, 27 Jun 2020 09:34:12 -0700 Subject: [Elecraft] URL??? In-Reply-To: <7b3368d0-ffe6-a828-8690-6871d0640f2b@embarqmail.com> References: <65021CE1-F05F-43BB-8BAA-28090D2FA80A@gmail.com> <7b3368d0-ffe6-a828-8690-6871d0640f2b@embarqmail.com> Message-ID: <7C17B17C-24D2-4CA4-9C56-4F5A0F5FDE06@wunderwood.org> I use Apple Mail as a client and Fastmail as my server and see all my posts. I also don?t have Google reading my email and sending the results to advertisers. Amazon has had to remove the order details from their ?your order has shipped? emails because too many free email providers were scraping the data and selling it. I?m very happy paying for Fastmail. https://www.fastmail.com/pricing/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 26, 2020, at 11:30 PM, Don Wilhelm wrote: > > That is a "feature" of gmail - it is not standard for the reflector. > I guess gmail thinks that if you sent it, you do not want to see your post. > > I see all my posts to the reflector (non gmail address). > > 73, > Don W3FPR > > On 6/26/2020 11:22 PM, David Herring wrote: >> I can be corrected if I?m wrong, but my understanding (and personal experience) is that the reflector does not send a copy of an email back to the sender. At least it?s never done it for me. I usually see my messages when someone responds to it and its included in their response. >> As far as the link you sent, it came through 5-9. I checked it out earlier. ;-) > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From n6tv at arrl.net Sat Jun 27 12:36:06 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Sat, 27 Jun 2020 09:36:06 -0700 Subject: [Elecraft] K4 on Digital Modes In-Reply-To: <512AA8E6-21F5-433F-ABCB-9F207D726511@oatbit.com> References: <512AA8E6-21F5-433F-ABCB-9F207D726511@oatbit.com> Message-ID: On Sat, Jun 27, 2020 at 8:14 AM Gus Holcomb wrote: > With the K4D, for instance, what interfaces are presented on the computer > and how many of them are there? To review, on a K3S or K3+KIO3B with USB connector, you get one virtual serial port and one USB Sound Card (USB AUDIO CODEC). Windows cannot separately set the record level of the left/right audio channels of the K3S sound card. With the K4 USB connector you get *two* virtual serial ports on the USB (similar to IC-7610) and a new USB Sound Card that Windows recognizes as "LINE" instead of "MIC", so you can set the left/right recording levels separately, if needed for critical SO2V RTTY Contesting. The second serial port is ideal for computer-generated CW, FSK or PTT keying (via RTS/DTR pins) for programs like N3FJP (and HRD?) that cannot do both CW keying and rig control on the same serial port, or programs like MMTTY that need a dedicated serial port for FSK keying. Port sharing software not needed. An FSK keying circuit on the K3 ACC connector is no longer needed (but is still supported). There's also a separate and independent female DE-9 RS232 connector ideal for connecting non-Elecraft amplifier "CAT" cables or SteppIR controllers. This port operates independently of the USB serial ports so no special Y-Cables needed, and it can use a different baud rate; the device is allowed to poll the K4 at the same time that a logging program is polling the radio on a different port (not possible on K3 or K3S). Will all over them be accessed over ethernet or can you also use USB? Ethernet can be used too, but it is optional. > What software will you need to run on your computer? Same as you would for K3, with enhancements developed over time to take advantage of K4's extra capability, such as FSK keying over serial port. Can you run multiple copies of a wsjt-x and monitor different > bands/frequencies simultaneously? Monitoring two bands will be possible with a K4D model if a Sub Receiver is enabled. However, we'll have to tell the second instance of WSJT-X to read "VFO B" instead of "VFO A" to display the SubRx frequency, and transmitting one both would require constantly switching between "SPLIT ON" and "SPLIT OFF". Of course, while one VFO is transmitting the other won't be able to receive since all receivers are muted during transmit. > Will you be able to transmit on each of those bands seamlessly? Not sure what you mean by seamlessly. It's treated as one radio with two VFOs, and you can transmit on VFO A if SPLIT is OFF, or transmit on VFO B if SPLIT is ON. > With the K4D each having a receiver and a sub-receiver can you monitor 4 > bands or just 2? > Two bands. There are only two audio output channels, not four. 73, Bob, N6TV From edauer at law.du.edu Sat Jun 27 17:01:31 2020 From: edauer at law.du.edu (Dauer, Edward) Date: Sat, 27 Jun 2020 21:01:31 +0000 Subject: [Elecraft] Requesting help with computer issue - Message-ID: Maybe a bit OT but I need counsel from someone adept with either Windows 10 or with MS Surface laptop or, possibly, both. Problem: Cannot get display onto outboard monitor (an ACER). What does show up is my background picture and the task bar, but nothing else. Tried almost every app I have. In particular, N1MM which I am trying to use for the FD this weekend. Major points - this combo worked just fine for at least two years. Today it doesn't. I tried toggling the display items in Settings, including "identify display." It replies that there aren't any to identify. But there is one, and the screen saver picture shows up on it, so I know they're communicating. I must have messed up some setting - or Windows did when it "updated" the OS (grrrr. . . .) Help, anyone? Contesting without the Big Screen is a pain . . . Tnx!! Ted, KN1CBR From c-hawley at illinois.edu Sat Jun 27 17:22:56 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sat, 27 Jun 2020 21:22:56 +0000 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: References: Message-ID: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> Measure which wire goes to the outside shell of the connector, that?s ground. Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Jun 27, 2020, at 9:51 AM, Doug Daniels wrote: > > ?Just opened the box on my new KX2, and am about to put powerpoles on the > power cable. Since both sides of the wire are black, which is the positive, > the one with the white dashes? > > Thanks. > > -- > > --... ...-- > Doug > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From k2asp at kanafi.org Sat Jun 27 18:43:12 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 27 Jun 2020 15:43:12 -0700 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: References: Message-ID: On 6/27/2020 2:01 PM, Dauer, Edward wrote: > Maybe a bit OT but I need counsel from someone adept with either > Windows 10 or with MS Surface laptop or, possibly, both. > I must have messed up some setting - or Windows did when it > "updated" the OS (grrrr. . . .) I've had to bail out my wife's Surface and my own Dell tower and laptop over issues like this. It's a driver problem. Sometimes it needs an updated driver (from ACES on your case) but sometimes all it takes is to reinstall a fresh copy of the existing driver as if it never existed. Using any Surface or laptop without a big screen is a pain. I just up-sized to a 27" - the largest that would fir the geometry of my operating position. Let us know what happens, Ted. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From k2asp at kanafi.org Sat Jun 27 18:48:42 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 27 Jun 2020 15:48:42 -0700 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> References: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> Message-ID: <4fa2902c-9daf-ef4a-cf76-0ccb33957442@kanafi.org> On 6/27/2020 2:22 PM, hawley, charles j jr wrote: > Measure which wire goes to the outside shell of the connector, that?s ground. That's about the only way. Unfortunately I have found two standards for "zip cord" markings - white stripe on positive, and white stripe on negative. Your multi-meter is your friend. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From w0sz at comcast.net Sat Jun 27 19:39:14 2020 From: w0sz at comcast.net (STEPHEN R ZUMBRUN) Date: Sat, 27 Jun 2020 17:39:14 -0600 (MDT) Subject: [Elecraft] KPA1500 Power Supply Fan Noise Message-ID: <1871358926.24050.1593301154936@connect.xfinity.com> Hello, all and Happy Field Day. Say I just wanted to comment about Elecraft service and the help they provided me to make a mod to my KPA1500. My KPA1500 power supply fan was rather noisy. I had seen discussion on the reflector about this so I contacted Doug at Elecraft service. He ask if I could solder. I informed him I could and he sent me a new 22 ohm, 3 watt resistor and i swapped it out with the 10 ohm, 3 watt resistor on the LED board of the power supply. I am much pleased with the sound of the power supply fan now after the modification. My amp is an early serial number and the new amps come with the 22 ohm resistor on the LED board. So...if your power supply is a bit noisy you might consider this mod and contact Doug at Elecraft Service. The Elecraft part number of the resistor is E500128. 73, Steve W0SZ. From exbpi at comcast.net Sat Jun 27 19:53:30 2020 From: exbpi at comcast.net (exbpi at comcast.net) Date: Sat, 27 Jun 2020 16:53:30 -0700 Subject: [Elecraft] KPA1500 Power Supply Fan Noise In-Reply-To: <1871358926.24050.1593301154936@connect.xfinity.com> References: <1871358926.24050.1593301154936@connect.xfinity.com> Message-ID: <009601d64cde$3657c220$a3074660$@comcast.net> Hi Steve, Thanks for the update. So, this is the LED board on the amp, not the power supply? Guess we don't know at what serial number the change was made? Mike K7PI -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of STEPHEN R ZUMBRUN Sent: Saturday, June 27, 2020 16:39 To: elecraft at mailman.qth.net Subject: [Elecraft] KPA1500 Power Supply Fan Noise Hello, all and Happy Field Day. Say I just wanted to comment about Elecraft service and the help they provided me to make a mod to my KPA1500. My KPA1500 power supply fan was rather noisy. I had seen discussion on the reflector about this so I contacted Doug at Elecraft service. He ask if I could solder. I informed him I could and he sent me a new 22 ohm, 3 watt resistor and i swapped it out with the 10 ohm, 3 watt resistor on the LED board of the power supply. I am much pleased with the sound of the power supply fan now after the modification. My amp is an early serial number and the new amps come with the 22 ohm resistor on the LED board. So...if your power supply is a bit noisy you might consider this mod and contact Doug at Elecraft Service. The Elecraft part number of the resistor is E500128. 73, Steve W0SZ. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to exbpi at comcast.net From jim at audiosystemsgroup.com Sat Jun 27 20:08:24 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sat, 27 Jun 2020 17:08:24 -0700 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> References: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> Message-ID: On 6/27/2020 2:22 PM, hawley, charles j jr wrote: > Measure which wire goes to the outside shell of the connector, that?s ground. Not always -- I have at least one consumer product and one piece of pro test gear that has V+ to the outside of the connector. 73, Jim K9YC From k3bh at arrl.net Sat Jun 27 20:12:16 2020 From: k3bh at arrl.net (Jay Rutherford) Date: Sat, 27 Jun 2020 20:12:16 -0400 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: References: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> Message-ID: You really need to check before connecting a power supply. My Tecsun PL600 charger shows positive on the outside shell. Who ever dreamed that one up?! 73 Jay K3BH On Sat, Jun 27, 2020, at 20:08, Jim Brown wrote: > On 6/27/2020 2:22 PM, hawley, charles j jr wrote: > > Measure which wire goes to the outside shell of the connector, that?s ground. > > Not always -- I have at least one consumer product and one piece of pro > test gear that has V+ to the outside of the connector. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k3bh at arrl.net From w4sc at windstream.net Sat Jun 27 20:40:24 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 27 Jun 2020 20:40:24 -0400 Subject: [Elecraft] Requesting help with computer issue - Message-ID: <58.3B.21937.7F6E7FE5@smtp03.aqua.bos.sync.lan> 1) IF HDMI make sure cable is connected properly, ie seated. My Laptop has connector issues. VGA shouldn?t have this problem. 2) Press F8 3) Selections should appear on RHS of screen 4) Arrow down to ?Duplicate? then Laptop should be duplicated on monitor. Ben W4SC Sent from Mail for Windows 10 From c-hawley at illinois.edu Sat Jun 27 20:42:23 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sun, 28 Jun 2020 00:42:23 +0000 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: References: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> , Message-ID: All good info about different rigs having reverse polarities on the connector. But this is about the cable for the KX2. BTW, if you read page 5 of the KX2 manual, under power supply, the manual states that the center pin is + and the striped wire is +. Checking the cable with an ohmmeter is highly recommended...never know when the wire supplier changed something. However I would assume Elecraft would not redesign the socket polarity. So that's reasonably safe. Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Jun 27, 2020, at 7:12 PM, Jay Rutherford wrote: > > ?You really need to check before connecting a power supply. My Tecsun PL600 charger shows positive on the outside shell. Who ever dreamed that one up?! > > 73 > Jay K3BH > >> On Sat, Jun 27, 2020, at 20:08, Jim Brown wrote: >>> On 6/27/2020 2:22 PM, hawley, charles j jr wrote: >>> Measure which wire goes to the outside shell of the connector, that?s ground. >> >> Not always -- I have at least one consumer product and one piece of pro >> test gear that has V+ to the outside of the connector. >> >> 73, Jim K9YC >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to k3bh at arrl.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From rocketnj at gmail.com Sat Jun 27 20:43:34 2020 From: rocketnj at gmail.com (Dave) Date: Sat, 27 Jun 2020 20:43:34 -0400 Subject: [Elecraft] KPA1500 Power Supply Fan Noise In-Reply-To: <009601d64cde$3657c220$a3074660$@comcast.net> References: <009601d64cde$3657c220$a3074660$@comcast.net> Message-ID: It is the LED board in the PS. Dave wo2x Sent from my iPad > On Jun 27, 2020, at 7:55 PM, exbpi at comcast.net wrote: > > ?Hi Steve, > > Thanks for the update. > > So, this is the LED board on the amp, not the power supply? Guess we don't > know at what serial number the change was made? > > Mike > K7PI > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of STEPHEN R ZUMBRUN > Sent: Saturday, June 27, 2020 16:39 > To: elecraft at mailman.qth.net > Subject: [Elecraft] KPA1500 Power Supply Fan Noise > > Hello, all and Happy Field Day. Say I just wanted to comment about Elecraft > service and the help they provided me to make a mod to my KPA1500. My > KPA1500 power supply fan was rather noisy. I had seen discussion on the > reflector about this so I contacted Doug at Elecraft service. He ask if I > could solder. I informed him I could and he sent me a new 22 ohm, 3 watt > resistor and i swapped it out with the 10 ohm, 3 watt resistor on the LED > board of the power supply. I am much pleased with the sound of the power > supply fan now after the modification. My amp is an early serial number and > the new amps come with the 22 ohm resistor on the LED board. So...if your > power supply is a bit noisy you might consider this mod and contact Doug at > Elecraft Service. The Elecraft part number of the resistor is E500128. 73, > Steve W0SZ. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to exbpi at comcast.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rocketnj at gmail.com From nr4c at widomaker.com Sat Jun 27 20:54:45 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 27 Jun 2020 20:54:45 -0400 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: References: Message-ID: Shutdown and restart the Surface. Have you tried moving the mouse all along All Efges to see if you can access the errant display? Try rearranging the displays in Display Settings. Sent from my iPhone ...nr4c. bill > On Jun 27, 2020, at 5:03 PM, Dauer, Edward wrote: > > ?Maybe a bit OT but I need counsel from someone adept with either Windows 10 or with MS Surface laptop or, possibly, both. > > Problem: Cannot get display onto outboard monitor (an ACER). What does show up is my background picture and the task bar, but nothing else. Tried almost every app I have. In particular, N1MM which I am trying to use for the FD this weekend. > > Major points - this combo worked just fine for at least two years. Today it doesn't. I tried toggling the display items in Settings, including "identify display." It replies that there aren't any to identify. But there is one, and the screen saver picture shows up on it, so I know they're communicating. I must have messed up some setting - or Windows did when it "updated" the OS (grrrr. . . .) > > Help, anyone? Contesting without the Big Screen is a pain . . . > > Tnx!! > > Ted, KN1CBR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From dougzzz at gmail.com Sat Jun 27 21:08:15 2020 From: dougzzz at gmail.com (Douglas Zwiebel) Date: Sat, 27 Jun 2020 21:08:15 -0400 Subject: [Elecraft] New CW audio recording: K3 vs. K4D (E.H. Russell) In-Reply-To: References: Message-ID: 1. Nice job by 2RF. 2. Instant reply calling his approach smoke signals 3. 2RF sez "nope" 4. Elecraft effectively sez: 2RF post is NOT fake news and cites some possible issues. Good for Elecraft (as usual). Vetting on a pre-reflector posting basis is a GREAT idea. We are all anxious to "hear" anything, but GIGO = upset and confused customers. 5. I discount the delta due to external audio devices to some extent because it is the same set up (both TV and RF) for the K3 and K4. So any flaws on either end (making the recording or analyzing the recording) cancel out...it's all going through the same "stuff." This is a good forum and it is just fantastic that Eric and Wayne read this stuff (as always). de Doug KR2Q From n6kr at elecraft.com Sat Jun 27 21:14:29 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sat, 27 Jun 2020 18:14:29 -0700 Subject: [Elecraft] New CW audio recording: K3 vs. K4D (E.H. Russell) In-Reply-To: References: Message-ID: This seems as good a time as any to present our new slogan: Elecraft: Full-contact ham radio. Wayne > On Jun 27, 2020, at 6:08 PM, Douglas Zwiebel wrote: > > 1. Nice job by 2RF. > > 2. Instant reply calling his approach smoke signals > > 3. 2RF sez "nope" > > 4. Elecraft effectively sez: 2RF post is NOT fake news and cites some > possible issues. Good for Elecraft (as usual). Vetting on a pre-reflector > posting basis is a GREAT idea. We are all anxious to "hear" anything, but > GIGO = upset and confused customers. > > 5. I discount the delta due to external audio devices to some extent > because it is the same set up (both TV and RF) for the K3 and K4. So any > flaws on either end (making the recording or analyzing the recording) > cancel out...it's all going through the same "stuff." > > This is a good forum and it is just fantastic that Eric and Wayne read this > stuff (as always). > > de Doug KR2Q > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6kr at elecraft.com From hbjr at optilink.us Sat Jun 27 22:02:50 2020 From: hbjr at optilink.us (HB) Date: Sat, 27 Jun 2020 22:02:50 -0400 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: References: Message-ID: <202006280202.05S22q5D023772-05S22q5F023772@mailfilter.optilink.us> What type of adapter between your surface and your screen? A windows update stopped mine from working. I use a USB-C to multi port adapter ad I had to buy a new one after the update. I have a surface pro laptop. Hank K4HYJ Sent from Mail for Windows 10 From: Nr4c Sent: Saturday, June 27, 2020 8:55 PM To: Dauer, Edward Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Requesting help with computer issue - Shutdown and restart the Surface. Have you tried moving the mouse all along All Efges to see if you can access the errant display? Try rearranging the displays in Display Settings. Sent from my iPhone ...nr4c. bill > On Jun 27, 2020, at 5:03 PM, Dauer, Edward wrote: > > ?Maybe a bit OT but I need counsel from someone adept with either Windows 10 or with MS Surface laptop or, possibly, both. > > Problem: Cannot get display onto outboard monitor (an ACER). What does show up is my background picture and the task bar, but nothing else. Tried almost every app I have. In particular, N1MM which I am trying to use for the FD this weekend. > > Major points - this combo worked just fine for at least two years. Today it doesn't. I tried toggling the display items in Settings, including "identify display." It replies that there aren't any to identify. But there is one, and the screen saver picture shows up on it, so I know they're communicating. I must have messed up some setting - or Windows did when it "updated" the OS (grrrr. . . .) > > Help, anyone? Contesting without the Big Screen is a pain . . . > > Tnx!! > > Ted, KN1CBR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hbjr at optilink.us From edauer at law.du.edu Sat Jun 27 22:27:49 2020 From: edauer at law.du.edu (Dauer, Edward) Date: Sun, 28 Jun 2020 02:27:49 +0000 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: References: <58.3B.21937.7F6E7FE5@smtp03.aqua.bos.sync.lan> Message-ID: Aha! ?Duplicate? worked! It wasn?t exactly on the RHS ? had to dig a bit ? but that did it. Why it should need that after having worked flawlessly for a couple of years is beyond me ? unless Windows? latest update messed it up. I choose to blame that. And I very much appreciate your help! As I do for the help from others who also chipped in. Great group, as always. Back to FD . . . Ted, KN1CBR From: w4sc > Sent: Saturday, June 27, 2020 6:40 PM To: Dauer, Edward >; elecraft at mailman.qth.net Subject: [Elecraft] Requesting help with computer issue - 1. IF HDMI make sure cable is connected properly, ie seated. My Laptop has connector issues. VGA shouldn?t have this problem. 2. Press F8 3. Selections should appear on RHS of screen 4. Arrow down to ?Duplicate? then Laptop should be duplicated on monitor. Ben W4SC Sent from Mail for Windows 10 From tcowan at my321.net Sat Jun 27 22:29:20 2020 From: tcowan at my321.net (Ted Cowan) Date: Sat, 27 Jun 2020 20:29:20 -0600 Subject: [Elecraft] Want to buy: Elecraft XG1 or XG2 In-Reply-To: References: Message-ID: Thanks everyone for your amazing response to my request. This is the first time I have ever posted a want-to-buy, so please forgive me for not following up. I have an XG2 on its way to me and it should arrive by Tuesday evening. I will test it out right away and report here if I am satisfied with my purchase or if I need to reach out to you again. Those of you wanting to sell yours to others are of course free to do so. 73, Ted NA7C On Thu, Jun 25, 2020 at 10:04 PM Ted Cowan wrote: > I am looking to buy an Elecraft XG1 or XG2, either built and working or in > kit form. > > 73, Ted NA7C > From n8ag at comcast.net Sat Jun 27 23:18:51 2020 From: n8ag at comcast.net (Dave) Date: Sat, 27 Jun 2020 23:18:51 -0400 Subject: [Elecraft] New K-POD For Sale Message-ID: Like new K-POD - All I've done is test it out but have decided I don't really need it. Get ready for your K4 or enhance your K3S or K3. It works with them all. It comes with the manual, DC power cord, Data cable to radio and USB A/B cable. Please contact me off-list via e-mail. n8ag at comcast.net 73, Dave N8AG Sent from Mail for Windows 10 From k2asp at kanafi.org Sat Jun 27 23:29:49 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 27 Jun 2020 20:29:49 -0700 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: References: <58.3B.21937.7F6E7FE5@smtp03.aqua.bos.sync.lan> Message-ID: On 6/27/2020 7:27 PM, Dauer, Edward wrote: > Why it should need that after having worked flawlessly for a couple > of years is beyond me ? unless Windows? latest update messed it up. > I choose to blame that. I have to do that every so often with my laptop that I use only for ham radio stuff - W10 has a will of its own, it seems. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From ai4ns.mike at gmail.com Sat Jun 27 23:32:56 2020 From: ai4ns.mike at gmail.com (Mike Short) Date: Sat, 27 Jun 2020 22:32:56 -0500 Subject: [Elecraft] New K-POD For Sale In-Reply-To: <20200628032005.563E3149B261@mail.qsl.net> References: <20200628032005.563E3149B261@mail.qsl.net> Message-ID: Price? On Sat, Jun 27, 2020 at 22:20 Dave wrote: > Like new K-POD - All I've done is test it out but have decided I don't > really need it. Get ready for your K4 or enhance your K3S or K3. It works > with them all. It comes with the manual, DC power cord, Data cable to radio > and USB A/B cable. Please contact me off-list via e-mail. n8ag at comcast.net > 73, Dave N8AG > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ai4ns.mike at gmail.com > From k2asp at kanafi.org Sat Jun 27 23:35:08 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sat, 27 Jun 2020 20:35:08 -0700 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: References: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> Message-ID: <350c2f28-0ad7-90bf-1646-76c60627047c@kanafi.org> On 6/27/2020 5:12 PM, Jay Rutherford wrote: > You really need to check before connecting a power supply. My Tecsun PL600 charger shows positive on the outside shell. Who ever dreamed that one up?! Telephone industry standards have the negative 48V as the "hot" side. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From ai4ns.mike at gmail.com Sat Jun 27 23:36:14 2020 From: ai4ns.mike at gmail.com (Mike Short) Date: Sat, 27 Jun 2020 22:36:14 -0500 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: References: <58.3B.21937.7F6E7FE5@smtp03.aqua.bos.sync.lan> Message-ID: Windows update undoes settings each time. I disable Xbox and virtual server services and they are enabled after updates. On Sat, Jun 27, 2020 at 22:31 Phil Kane wrote: > On 6/27/2020 7:27 PM, Dauer, Edward wrote: > > > Why it should need that after having worked flawlessly for a couple > > of years is beyond me ? unless Windows? latest update messed it up. > > I choose to blame that. > > I have to do that every so often with my laptop that I use only for ham > radio stuff - W10 has a will of its own, it seems. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ai4ns.mike at gmail.com From donwilh at embarqmail.com Sun Jun 28 00:00:11 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 28 Jun 2020 00:00:11 -0400 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: References: <2720B7BC-9E4B-49A9-B475-EA5416F58908@illinois.edu> Message-ID: <63898851-ac78-d8bb-c954-7a5756c35db3@embarqmail.com> For Elecraft gear, the shell is always V- (ground). Other gear may be different. 73, Don W3FPR On 6/27/2020 8:08 PM, Jim Brown wrote: > On 6/27/2020 2:22 PM, hawley, charles j jr wrote: >> Measure which wire goes to the outside shell of the connector, that?s >> ground. > > Not always -- I have at least one consumer product and one piece of pro > test gear that has V+ to the outside of the connector. > From brianchapnick at rogers.com Sun Jun 28 00:10:10 2020 From: brianchapnick at rogers.com (brianchapnick at rogers.com) Date: Sun, 28 Jun 2020 00:10:10 -0400 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: <63898851-ac78-d8bb-c954-7a5756c35db3@embarqmail.com> References: Message-ID: You guys should be on the air this weekend. ?ts Field Day! Just worked a kh6 with 4 watts and an EFHWD up in a portable situation operating 1BB. Bands are busy. Take advantage. Brian VE3GMZ Sent via BlackBerry Hub+ Inbox for Android ? Original Message ? From: donwilh at embarqmail.com Sent: June 28, 2020 12:02 a.m. To: elecraft at mailman.qth.net Reply to: donwilh at embarqmail.com Subject: Re: [Elecraft] KX2 power cable polarity? For Elecraft gear, the shell is always V- (ground). Other gear may be different. 73, Don W3FPR On 6/27/2020 8:08 PM, Jim Brown wrote: > On 6/27/2020 2:22 PM, hawley, charles j jr wrote: >> Measure which wire goes to the outside shell of the connector, that?s >> ground. > > Not always -- I have at least one consumer product and one piece of pro > test gear that has V+ to the outside of the connector. > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to brianchapnick at rogers.com From macymonkeys at charter.net Sun Jun 28 01:05:21 2020 From: macymonkeys at charter.net (Macy monkeys) Date: Sat, 27 Jun 2020 22:05:21 -0700 Subject: [Elecraft] Having fun with K1 and FD... Message-ID: ...but not sure everyone is maintaining a social distance of 6 kHz ;) John K7FD From w0sz at comcast.net Sun Jun 28 04:49:00 2020 From: w0sz at comcast.net (Steve) Date: Sun, 28 Jun 2020 02:49:00 -0600 Subject: [Elecraft] KPA1500 Power Supply Fan Noise In-Reply-To: References: Message-ID: <293389B3-7D0C-4C5A-8B5E-E59504EB4828@comcast.net> As Dave mentioned the LED board is in the power supply. Take off the cover of the power supply and the LED board is small board located on front left side as you look at the amp from the rear. It?s held in place by two small screws. The resistor to change is located bottom of the board as your looking at it from the rear of the amp. The resistor needs to stand off the board a couple of mm. Your question regarding the SN when this change occurred is a good one. I don?t know the answer. My amp was one of the first with a very low SN. 73 > On Jun 27, 2020, at 6:43 PM, Dave wrote: > > ?It is the LED board in the PS. > > Dave wo2x > > Sent from my iPad > >> On Jun 27, 2020, at 7:55 PM, exbpi at comcast.net wrote: >> >> ?Hi Steve, >> >> Thanks for the update. >> >> So, this is the LED board on the amp, not the power supply? Guess we don't >> know at what serial number the change was made? >> >> Mike >> K7PI >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On >> Behalf Of STEPHEN R ZUMBRUN >> Sent: Saturday, June 27, 2020 16:39 >> To: elecraft at mailman.qth.net >> Subject: [Elecraft] KPA1500 Power Supply Fan Noise >> >> Hello, all and Happy Field Day. Say I just wanted to comment about Elecraft >> service and the help they provided me to make a mod to my KPA1500. My >> KPA1500 power supply fan was rather noisy. I had seen discussion on the >> reflector about this so I contacted Doug at Elecraft service. He ask if I >> could solder. I informed him I could and he sent me a new 22 ohm, 3 watt >> resistor and i swapped it out with the 10 ohm, 3 watt resistor on the LED >> board of the power supply. I am much pleased with the sound of the power >> supply fan now after the modification. My amp is an early serial number and >> the new amps come with the 22 ohm resistor on the LED board. So...if your >> power supply is a bit noisy you might consider this mod and contact Doug at >> Elecraft Service. The Elecraft part number of the resistor is E500128. 73, >> Steve W0SZ. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html Message >> delivered to exbpi at comcast.net >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rocketnj at gmail.com From gt0hof at gmail.com Sun Jun 28 08:00:12 2020 From: gt0hof at gmail.com (Ken Barnett) Date: Sun, 28 Jun 2020 13:00:12 +0100 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: References: , Message-ID: From nr4c at widomaker.com Sun Jun 28 08:20:09 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 28 Jun 2020 08:20:09 -0400 Subject: [Elecraft] [K3] S/N 45## low power out and ATU not tuning properly? Message-ID: This started several years ago at a FD. Brought home and worked perfectly. took to another outdoor event and same thing. Works at home not at events. Pulled KPA3 out and applied Deoxit and worked connectors in/out several times and replaced KPA3. Worked well thru two FDs and number of other events. And as main radio after selling my K3S last summer ($ for K4D). Took down and packed it up for FD about 6 weeks ago and replaced it with an IC-7300 till the K4 arrives. This AM it started again at FD! Could this be an LPA issue instead of the KPA3 issue? Can?t remember if my KPA3 has gold pins or not. Help! Sent from my iPhone ...nr4c. Bill From jlm124 at outlook.com Sun Jun 28 08:29:38 2020 From: jlm124 at outlook.com (John McBride) Date: Sun, 28 Jun 2020 12:29:38 +0000 Subject: [Elecraft] DATA A not available on 20 & 15 PSK31 Message-ID: Thanks for the responses which have been received. When following the directions to set DATA A on 20 and 15 meters, I do a 1/2 second hold on AFX - DATA MD and N/A is displayed. When adjusting the VFO B the display then is the same as the quick tap on the AFX - DATA MD, that is date, time, etc. Do you have any thoughts as to why this is not working (because it does work for 40 meters)? John McBride N0UQC From nr4c at widomaker.com Sun Jun 28 08:48:38 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 28 Jun 2020 08:48:38 -0400 Subject: [Elecraft] DATA A not available on 20 & 15 PSK31 In-Reply-To: References: Message-ID: It takes more than a 1/2 sec hold. A full 1-2 sec works better. You?re getting the error of trying to go DPLIT when one ZvFO is not on sane Data mode. Do the double-tap on A>B. Sent from my iPhone ...nr4c. bill > On Jun 28, 2020, at 8:31 AM, John McBride wrote: > > ?Thanks for the responses which have been received. When following the directions to set DATA A on 20 and 15 meters, I do a 1/2 second hold on AFX - DATA MD and N/A is displayed. When adjusting the VFO B the display then is the same as the quick tap on the AFX - DATA MD, that is date, time, etc. Do you have any thoughts as to why this is not working (because it does work for 40 meters)? > > John McBride N0UQC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From nr4c at widomaker.com Sun Jun 28 10:32:26 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 28 Jun 2020 10:32:26 -0400 Subject: [Elecraft] [K3] S/N 45## low power out and ATU not tuning properly? In-Reply-To: References: Message-ID: <8FCF59CD-2785-41A9-80DC-A2E1F7363C88@widomaker.com> No. At field it?s batteries. At home an Astron 35m linear or any or several switchers. The field setup may be one or two AGM batteries. Nominal voltage 12-12.8 volts. At home it?s 14.1. Sent from my iPhone ...nr4c. bill > On Jun 28, 2020, at 10:06 AM, rich hurd WC3T wrote: > > ? > Same power source? > >> On Sun, Jun 28, 2020 at 08:20 Nr4c wrote: >> This started several years ago at a FD. Brought home and worked perfectly. took to another outdoor event and same thing. Works at home not at events. >> >> Pulled KPA3 out and applied Deoxit and worked connectors in/out several times and replaced KPA3. Worked well thru two FDs and number of other events. And as main radio after selling my K3S last summer ($ for K4D). Took down and packed it up for FD about 6 weeks ago and replaced it with an IC-7300 till the K4 arrives. >> >> This AM it started again at FD! >> >> Could this be an LPA issue instead of the KPA3 issue? Can?t remember if my KPA3 has gold pins or not. >> >> Help! >> >> Sent from my iPhone >> ...nr4c. Bill >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rich at wc3t.us > -- > 72, > Rich Hurd / WC3T / DMR: 3142737 > Northampton County RACES, EPA-ARRL Public Information Officer for Scouting > Latitude: 40.761621 Longitude: -75.288988 (40?45.68' N 75?17.33' W) Grid: FN20is > From jlm124 at outlook.com Sun Jun 28 11:21:54 2020 From: jlm124 at outlook.com (John McBride) Date: Sun, 28 Jun 2020 15:21:54 +0000 Subject: [Elecraft] DATA A not available on 20 & 15 PSK31 In-Reply-To: References: , Message-ID: Thanks! the A/B switch was the answer. Knew it had to be a simple fix but needed someone to give me the answer. John N0UQC ________________________________ From: Nr4c Sent: Sunday, June 28, 2020 6:48 AM To: John McBride Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] DATA A not available on 20 & 15 PSK31 It takes more than a 1/2 sec hold. A full 1-2 sec works better. You?re getting the error of trying to go DPLIT when one ZvFO is not on sane Data mode. Do the double-tap on A>B. Sent from my iPhone ...nr4c. bill > On Jun 28, 2020, at 8:31 AM, John McBride wrote: > > ?Thanks for the responses which have been received. When following the directions to set DATA A on 20 and 15 meters, I do a 1/2 second hold on AFX - DATA MD and N/A is displayed. When adjusting the VFO B the display then is the same as the quick tap on the AFX - DATA MD, that is date, time, etc. Do you have any thoughts as to why this is not working (because it does work for 40 meters)? > > John McBride N0UQC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From jd at ko8v.net Sun Jun 28 12:49:14 2020 From: jd at ko8v.net (Joe DeVincentis) Date: Sun, 28 Jun 2020 12:49:14 -0400 Subject: [Elecraft] K4 on Digital Modes In-Reply-To: References: <512AA8E6-21F5-433F-ABCB-9F207D726511@oatbit.com> Message-ID: <02d001d64d6c$0e3417b0$2a9c4710$@ko8v.net> This brings up a question about FSK. If I read this correctly, we will be able to generate FSK by toggling RTS/DTR). Personally, I find the jitter in Windows to be unacceptable using this method. Windows is no where real time having any sort of guarantee. That's why I use an external FSK keyer on my K3s. What I was wondering is if the K4 will be able to accept an ASCII string and do the FSK keying (ala a TinyFSK module)? 73, Joe, KO8V -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Bob Wilson, N6TV Sent: Saturday, June 27, 2020 12:36 To: Elecraft Reflector Subject: Re: [Elecraft] K4 on Digital Modes On Sat, Jun 27, 2020 at 8:14 AM Gus Holcomb wrote: > With the K4D, for instance, what interfaces are presented on the > computer and how many of them are there? To review, on a K3S or K3+KIO3B with USB connector, you get one virtual serial port and one USB Sound Card (USB AUDIO CODEC). Windows cannot separately set the record level of the left/right audio channels of the K3S sound card. With the K4 USB connector you get *two* virtual serial ports on the USB (similar to IC-7610) and a new USB Sound Card that Windows recognizes as "LINE" instead of "MIC", so you can set the left/right recording levels separately, if needed for critical SO2V RTTY Contesting. The second serial port is ideal for computer-generated CW, FSK or PTT keying (via RTS/DTR pins) for programs like N3FJP (and HRD?) that cannot do both CW keying and rig control on the same serial port, or programs like MMTTY that need a dedicated serial port for FSK keying. Port sharing software not needed. An FSK keying circuit on the K3 ACC connector is no longer needed (but is still supported). There's also a separate and independent female DE-9 RS232 connector ideal for connecting non-Elecraft amplifier "CAT" cables or SteppIR controllers. This port operates independently of the USB serial ports so no special Y-Cables needed, and it can use a different baud rate; the device is allowed to poll the K4 at the same time that a logging program is polling the radio on a different port (not possible on K3 or K3S). Will all over them be accessed over ethernet or can you also use USB? Ethernet can be used too, but it is optional. > What software will you need to run on your computer? Same as you would for K3, with enhancements developed over time to take advantage of K4's extra capability, such as FSK keying over serial port. Can you run multiple copies of a wsjt-x and monitor different > bands/frequencies simultaneously? Monitoring two bands will be possible with a K4D model if a Sub Receiver is enabled. However, we'll have to tell the second instance of WSJT-X to read "VFO B" instead of "VFO A" to display the SubRx frequency, and transmitting one both would require constantly switching between "SPLIT ON" and "SPLIT OFF". Of course, while one VFO is transmitting the other won't be able to receive since all receivers are muted during transmit. > Will you be able to transmit on each of those bands seamlessly? Not sure what you mean by seamlessly. It's treated as one radio with two VFOs, and you can transmit on VFO A if SPLIT is OFF, or transmit on VFO B if SPLIT is ON. > With the K4D each having a receiver and a sub-receiver can you monitor > 4 bands or just 2? > Two bands. There are only two audio output channels, not four. 73, Bob, N6TV ______________________________________________________________ From bw396ss at yahoo.com Sun Jun 28 15:58:39 2020 From: bw396ss at yahoo.com (Bill Wiehe) Date: Sun, 28 Jun 2020 19:58:39 +0000 (UTC) Subject: [Elecraft] Sharing References: <603213430.3492605.1593374319435.ref@mail.yahoo.com> Message-ID: <603213430.3492605.1593374319435@mail.yahoo.com> ?Hi Madelyn, I have a quick question, ? I was waiting, ?saving up, to upgrade my K3 with the KIO3BUpkt-KIO3Bkit. However, now I see the kit is unavailable. Are there any plans to make anymore of these kits onceyou are all back to full operation? Thank you,?Bill-W0BBI? From mikekopacki at gmail.com Sun Jun 28 16:04:49 2020 From: mikekopacki at gmail.com (NJMike) Date: Sun, 28 Jun 2020 13:04:49 -0700 (MST) Subject: [Elecraft] K2 K2/100 post FD review Message-ID: <1593374689524-0.post@n2.nabble.com> I was able to finish my KPA100 a few days ago, just in time for Field Day. The amp worked flawlessly! No error messages, over heating, etc. made 451 contacts on CW and phone with no bad reports. I am extremely pleased and wish to thank the Elecraft team for developing such a great kit! I did notice a variation on the power output on different bands: 80m - 100w 40m - 100w 20m - 80w 15m - 50w 10m - 30w SWR was never above 1.3-1. Does that sound normal? Thanks again! Mike NJ2OM -- Sent from: http://elecraft.365791.n2.nabble.com/ From donwilh at embarqmail.com Sun Jun 28 16:40:53 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 28 Jun 2020 16:40:53 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <1593374689524-0.post@n2.nabble.com> References: <1593374689524-0.post@n2.nabble.com> Message-ID: Mike, Congratulations on finishing the K2/100. On the power output variation, that is not normal. First check the voltage delivered to the K2 while in transmit. You should do that by tapping DISPLAY and scrolling to the voltage display. Your power source should provide at least 13.8 volts, but higher (up to 15 volts) is better. If the voltage shown by the K2 display during transmit is less than 12.6, make certain all power cable connections are tight. If the power supply voltage is not the problem, then remove the KPA100 from the base K2 and realign the bandpass filters. Connect a dummy load to the base K2 BNC ANT jack. After that, check the maximum power from the base K2 - you should have at least 10 watts on each band. Record the power for each band. Using a dummy load takes away any question about your antennas. Always check into a dummy load - with an in-line wattmeter if necessary. The other possibility is that you have a problem in the Low Pass Filter in the KPA100. To check for that, re-install the KPA100, but power the base K2 from the coaxial power jack (no power to the KPA100 - connect the dummy load to the SO2339 jack on the KPA100. Again check the maximum power on each band from the base K2. It should be no more than 5% less than you found with the base K2 only. If there is a substantial difference in power, then check the KPA100 Low Pass Filter - particularly checking the number of turns on the toroids. 73, Don W3FPR On 6/28/2020 4:04 PM, NJMike wrote: > > I did notice a variation on the power output on different bands: > > 80m - 100w > 40m - 100w > 20m - 80w > 15m - 50w > 10m - 30w > > SWR was never above 1.3-1. > > Does that sound normal? > From KX3.3 at ColdRocksHotBrooms.com Sun Jun 28 16:48:36 2020 From: KX3.3 at ColdRocksHotBrooms.com (Lynn W. Taylor, WB6UUT) Date: Sun, 28 Jun 2020 13:48:36 -0700 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: References: <58.3B.21937.7F6E7FE5@smtp03.aqua.bos.sync.lan> Message-ID: <616a5d90-a24e-95fa-b035-bc0768349604@ColdRocksHotBrooms.com> I fought for a very long time, and finally gave up on Windows and shifted to Linux Mint Cinnamon. One of my mentors calls Linux the OS of last resort, and I agree, Microsoft finally pushed me that far. The Cinnamon desktop is more windows-like than Windows 10. 73 -- Lynn On 6/27/20 8:29 PM, Phil Kane wrote: > On 6/27/2020 7:27 PM, Dauer, Edward wrote: > >> Why it should need that after having worked flawlessly for a couple >> of years is beyond me ? unless Windows? latest update messed it up. >> I choose to blame that. > > I have to do that every so often with my laptop that I use only for ham > radio stuff - W10 has a will of its own, it seems. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kx3.3 at coldrockshotbrooms.com > From mikekopacki at gmail.com Sun Jun 28 17:11:17 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Sun, 28 Jun 2020 17:11:17 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: References: Message-ID: Well, that gives me something to do! I?ll let you know how it goes. Thanks, Mike NJ2OM > On Jun 28, 2020, at 4:41 PM, Don Wilhelm wrote: > > ?Mike, > > Congratulations on finishing the K2/100. > > On the power output variation, that is not normal. > First check the voltage delivered to the K2 while in transmit. > You should do that by tapping DISPLAY and scrolling to the voltage display. Your power source should provide at least 13.8 volts, but higher (up to 15 volts) is better. If the voltage shown by the K2 display during transmit is less than 12.6, make certain all power cable connections are tight. > > If the power supply voltage is not the problem, then remove the KPA100 from the base K2 and realign the bandpass filters. Connect a dummy load to the base K2 BNC ANT jack. After that, check the maximum power from the base K2 - you should have at least 10 watts on each band. Record the power for each band. > > Using a dummy load takes away any question about your antennas. Always check into a dummy load - with an in-line wattmeter if necessary. > > The other possibility is that you have a problem in the Low Pass Filter in the KPA100. To check for that, re-install the KPA100, but power the base K2 from the coaxial power jack (no power to the KPA100 - connect the dummy load to the SO2339 jack on the KPA100. > Again check the maximum power on each band from the base K2. It should be no more than 5% less than you found with the base K2 only. > If there is a substantial difference in power, then check the KPA100 Low Pass Filter - particularly checking the number of turns on the toroids. > > 73, > Don W3FPR > > >> On 6/28/2020 4:04 PM, NJMike wrote: >> I did notice a variation on the power output on different bands: >> 80m - 100w >> 40m - 100w >> 20m - 80w >> 15m - 50w >> 10m - 30w >> SWR was never above 1.3-1. >> Does that sound normal? From frantz at pwpconsult.com Sun Jun 28 20:17:54 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sun, 28 Jun 2020 20:17:54 -0400 Subject: [Elecraft] KX2 power cable polarity? In-Reply-To: <4fa2902c-9daf-ef4a-cf76-0ccb33957442@kanafi.org> Message-ID: My .sig at the bottom says it all. 73 Bill AE6JV On 6/27/20 at 6:48 PM, k2asp at kanafi.org (Phil Kane) wrote: > Unfortunately I have found two standards for > "zip cord" markings - white stripe on positive, and white stripe on > negative. Your multi-meter is your friend. ----------------------------------------------------------------------- Bill Frantz |The nice thing about standards| Periwinkle (408)348-7900 |is there are so many to choose| 150 Rivermead Rd #235 www.pwpconsult.com |from. - Andrew Tanenbaum | Peterborough, NH 03458 From frantz at pwpconsult.com Sun Jun 28 20:17:54 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sun, 28 Jun 2020 20:17:54 -0400 Subject: [Elecraft] K4 on Digital Modes In-Reply-To: <02d001d64d6c$0e3417b0$2a9c4710$@ko8v.net> Message-ID: The K3 will accept a command through the CAT interface to send CW/RTTY/PSK. The K4 should as well. 73 Bill AE6JV On 6/28/20 at 12:49 PM, jd at ko8v.net (Joe DeVincentis) wrote: >What I was wondering is if the K4 will be able to accept an ASCII string and >do the FSK keying (ala a TinyFSK module)? --------------------------------------------------------------------------- Bill Frantz |"Web security is like medicine - trying to do good for 408-348-7900 |an evolved body of kludges" - Mark Miller www.pwpconsult.com | From k2asp at kanafi.org Sun Jun 28 20:30:13 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sun, 28 Jun 2020 17:30:13 -0700 Subject: [Elecraft] Requesting help with computer issue - In-Reply-To: <616a5d90-a24e-95fa-b035-bc0768349604@ColdRocksHotBrooms.com> References: <58.3B.21937.7F6E7FE5@smtp03.aqua.bos.sync.lan> <616a5d90-a24e-95fa-b035-bc0768349604@ColdRocksHotBrooms.com> Message-ID: On 6/28/2020 1:48 PM, Lynn W. Taylor, WB6UUT wrote: > The Cinnamon desktop is more windows-like than Windows 10. It took some doing but I made Win 10 look and feel like "real windows" (Win 7). 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From norrislawfirm2 at gmail.com Sun Jun 28 20:58:37 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Sun, 28 Jun 2020 17:58:37 -0700 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: References: Message-ID: Congratulations, Mike! Please let us ALL know how it goes, as we of the K2 clan learn something with every post. 73 Eric WD6DBM On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki wrote: > Well, that gives me something to do! I?ll let you know how it goes. > > Thanks, > Mike NJ2OM > > > On Jun 28, 2020, at 4:41 PM, Don Wilhelm wrote: > > > > ?Mike, > > > > Congratulations on finishing the K2/100. > > > > On the power output variation, that is not normal. > > First check the voltage delivered to the K2 while in transmit. > > You should do that by tapping DISPLAY and scrolling to the voltage > display. Your power source should provide at least 13.8 volts, but higher > (up to 15 volts) is better. If the voltage shown by the K2 display during > transmit is less than 12.6, make certain all power cable connections are > tight. > > > > If the power supply voltage is not the problem, then remove the KPA100 > from the base K2 and realign the bandpass filters. Connect a dummy load to > the base K2 BNC ANT jack. After that, check the maximum power from the > base K2 - you should have at least 10 watts on each band. Record the power > for each band. > > > > Using a dummy load takes away any question about your antennas. Always > check into a dummy load - with an in-line wattmeter if necessary. > > > > The other possibility is that you have a problem in the Low Pass Filter > in the KPA100. To check for that, re-install the KPA100, but power the > base K2 from the coaxial power jack (no power to the KPA100 - connect the > dummy load to the SO2339 jack on the KPA100. > > Again check the maximum power on each band from the base K2. It should > be no more than 5% less than you found with the base K2 only. > > If there is a substantial difference in power, then check the KPA100 Low > Pass Filter - particularly checking the number of turns on the toroids. > > > > 73, > > Don W3FPR > > > > > >> On 6/28/2020 4:04 PM, NJMike wrote: > >> I did notice a variation on the power output on different bands: > >> 80m - 100w > >> 40m - 100w > >> 20m - 80w > >> 15m - 50w > >> 10m - 30w > >> SWR was never above 1.3-1. > >> Does that sound normal? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to norrislawfirm2 at gmail.com From norrislawfirm2 at gmail.com Sun Jun 28 21:06:09 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Sun, 28 Jun 2020 18:06:09 -0700 Subject: [Elecraft] RFE KAT500 One Button Tune Message-ID: I really like the One Button Tune feature on the KPA1500 (press ATU TUNE on the K3, and the KPA1500 ATU does a tune sequence). Would it be possible to implement this on the K4 (if not the K3) for the KAT500 as well? 73 Eric WD6DBM From mikekopacki at gmail.com Sun Jun 28 21:41:08 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Sun, 28 Jun 2020 21:41:08 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: References: Message-ID: I can run through some of the items you suggest. But I don?t have an external wattmeter that can measure 100 watts. I do have a QRP wattmeter. I will start tomorrow to try and work through the question. But to be completely accurate...you are saying that the KPA100 wattmeter (which is what I see when pressing TUNE and DISPLAY together), should read the same as the REQUESTED power (which is what the power knob sets)? Thanks, Mike NJ2OM > On Jun 28, 2020, at 8:58 PM, Eric Norris wrote: > > ? > Congratulations, Mike! Please let us ALL know how it goes, as we of the K2 clan learn something with every post. > > 73 Eric WD6DBM > >> On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki wrote: >> Well, that gives me something to do! I?ll let you know how it goes. >> >> Thanks, >> Mike NJ2OM >> >> > On Jun 28, 2020, at 4:41 PM, Don Wilhelm wrote: >> > >> > ?Mike, >> > >> > Congratulations on finishing the K2/100. >> > >> > On the power output variation, that is not normal. >> > First check the voltage delivered to the K2 while in transmit. >> > You should do that by tapping DISPLAY and scrolling to the voltage display. Your power source should provide at least 13.8 volts, but higher (up to 15 volts) is better. If the voltage shown by the K2 display during transmit is less than 12.6, make certain all power cable connections are tight. >> > >> > If the power supply voltage is not the problem, then remove the KPA100 from the base K2 and realign the bandpass filters. Connect a dummy load to the base K2 BNC ANT jack. After that, check the maximum power from the base K2 - you should have at least 10 watts on each band. Record the power for each band. >> > >> > Using a dummy load takes away any question about your antennas. Always check into a dummy load - with an in-line wattmeter if necessary. >> > >> > The other possibility is that you have a problem in the Low Pass Filter in the KPA100. To check for that, re-install the KPA100, but power the base K2 from the coaxial power jack (no power to the KPA100 - connect the dummy load to the SO2339 jack on the KPA100. >> > Again check the maximum power on each band from the base K2. It should be no more than 5% less than you found with the base K2 only. >> > If there is a substantial difference in power, then check the KPA100 Low Pass Filter - particularly checking the number of turns on the toroids. >> > >> > 73, >> > Don W3FPR >> > >> > >> >> On 6/28/2020 4:04 PM, NJMike wrote: >> >> I did notice a variation on the power output on different bands: >> >> 80m - 100w >> >> 40m - 100w >> >> 20m - 80w >> >> 15m - 50w >> >> 10m - 30w >> >> SWR was never above 1.3-1. >> >> Does that sound normal? >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to norrislawfirm2 at gmail.com From jd at ko8v.net Sun Jun 28 22:07:28 2020 From: jd at ko8v.net (Joe DeVincentis) Date: Sun, 28 Jun 2020 22:07:28 -0400 Subject: [Elecraft] K4 on Digital Modes In-Reply-To: References: Message-ID: <430293F2-6608-47BB-A251-840CFA4AEEC8@ko8v.net> I am aware of the KY command, but it is limited to 24 characters per command. And as far as I can tell no system supports it in a conversational mode (e.g. fldigi, mmtty, etc) in the same way an external modem is supported. Joe, KO8V > On Jun 28, 2020, at 20:21, Bill Frantz wrote: > > ?The K3 will accept a command through the CAT interface to send CW/RTTY/PSK. The K4 should as well. > > 73 Bill AE6JV From jackbrindle at me.com Sun Jun 28 22:29:35 2020 From: jackbrindle at me.com (Jack Brindle) Date: Sun, 28 Jun 2020 19:29:35 -0700 Subject: [Elecraft] RFE KAT500 One Button Tune In-Reply-To: References: Message-ID: In a word, no. The KAT500 listens to the K3 over the Auxbus, but does not have the ability to talk to the K3. So, there is no way for the KAT500 to tell the K3 about tune. I feel your frustration, and wish we could implement this capability. 73! Jack, W6FB > On Jun 28, 2020, at 6:06 PM, Eric Norris wrote: > > I really like the One Button Tune feature on the KPA1500 (press ATU TUNE on > the K3, and the KPA1500 ATU does a tune sequence). Would it be possible to > implement this on the K4 (if not the K3) for the KAT500 as well? > > 73 Eric WD6DBM > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From donwilh at embarqmail.com Sun Jun 28 22:50:10 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 28 Jun 2020 22:50:10 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: References: Message-ID: <43f19aaf-90f1-a82a-01e3-0d610f657fc4@embarqmail.com> Mike, No, the KPA100 wattmeter will display the actual power being produced if it is well calibrated. That is not necessarily the same as the requested power, although with a properly working KPA100 and a calibrated KPA100 wattmeter, the reading should be the same. 73, Don W3FPR On 6/28/2020 9:41 PM, Mike Kopacki wrote: > I can run through some of the items you suggest. But I don?t have an > external wattmeter that can measure 100 watts. I do have a QRP wattmeter. > > I will start tomorrow to try and work through the question. > > But to be completely accurate...you are saying that the KPA100 > wattmeter (which is what I see when pressing TUNE and DISPLAY > together), should read the same as the REQUESTED power (which is what > the power knob sets)? > > Thanks, > Mike NJ2OM > >> On Jun 28, 2020, at 8:58 PM, Eric Norris >> wrote: >> >> ? >> Congratulations, Mike!? Please let us ALL know how it goes, as we of >> the K2 clan learn something with every post. >> >> 73 Eric WD6DBM >> >> On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki > > wrote: >> >> Well, that gives me something to do!? I?ll let you know how it goes. >> >> Thanks, >> Mike NJ2OM >> >> > On Jun 28, 2020, at 4:41 PM, Don Wilhelm >> > wrote: >> > >> > ?Mike, >> > >> > Congratulations on finishing the K2/100. >> > >> > On the power output variation, that is not normal. >> > First check the voltage delivered to the K2 while in transmit. >> > You should do that by tapping DISPLAY and scrolling to the >> voltage display.? Your power source should provide at least 13.8 >> volts, but higher (up to 15 volts) is better.? If the voltage >> shown by the K2 display during transmit is less than 12.6, make >> certain all power cable connections are tight. >> > >> > If the power supply voltage is not the problem, then remove the >> KPA100 from the base K2 and realign the bandpass filters.? >> Connect a dummy load to the base K2 BNC ANT jack.? After that, >> check the maximum power from the base K2 - you should have at >> least 10 watts on each band.? Record the power for each band. >> > >> > Using a dummy load takes away any question about your >> antennas.? Always check into a dummy load - with an in-line >> wattmeter if necessary. >> > >> > The other possibility is that you have a problem in the Low >> Pass Filter in the KPA100.? To check for that, re-install the >> KPA100, but power the base K2 from the coaxial power jack (no >> power to the KPA100 - connect the dummy load to the SO2339 jack >> on the KPA100. >> > Again check the maximum power on each band from the base K2.? >> It should be no more than 5% less than you found with the base K2 >> only. >> > If there is a substantial difference in power, then check the >> KPA100 Low Pass Filter - particularly checking the number of >> turns on the toroids. >> > >> > 73, >> > Don W3FPR >> > >> > >> >> On 6/28/2020 4:04 PM, NJMike wrote: >> >> I did notice a variation on the power output on different bands: >> >> 80m - 100w >> >> 40m - 100w >> >> 20m - 80w >> >> 15m - 50w >> >> 10m - 30w >> >> SWR was never above 1.3-1. >> >> Does that sound normal? >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to norrislawfirm2 at gmail.com >> >> From mikekopacki at gmail.com Mon Jun 29 08:50:47 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Mon, 29 Jun 2020 08:50:47 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <43f19aaf-90f1-a82a-01e3-0d610f657fc4@embarqmail.com> References: <43f19aaf-90f1-a82a-01e3-0d610f657fc4@embarqmail.com> Message-ID: <0148E7E8-4F94-4A3E-BBF0-C9348E2D5DB3@gmail.com> Okay. I will go back to your first reply and run through the items you suggested. Does the fact that on 40 and 80 meters, when I set the requested power to 100w, I actually see a little more - like 103w - but the power drops off on other bands - is that a clue to anything? Thanks, Mike NJ2OM > On Jun 28, 2020, at 10:50 PM, Don Wilhelm wrote: > > ?Mike, > > No, the KPA100 wattmeter will display the actual power being produced if it is well calibrated. > That is not necessarily the same as the requested power, although with a properly working KPA100 and a calibrated KPA100 wattmeter, the reading should be the same. > > 73, > Don W3FPR > >> On 6/28/2020 9:41 PM, Mike Kopacki wrote: >> I can run through some of the items you suggest. But I don?t have an external wattmeter that can measure 100 watts. I do have a QRP wattmeter. >> >> I will start tomorrow to try and work through the question. >> >> But to be completely accurate...you are saying that the KPA100 wattmeter (which is what I see when pressing TUNE and DISPLAY together), should read the same as the REQUESTED power (which is what the power knob sets)? >> >> Thanks, >> Mike NJ2OM >> >>>> On Jun 28, 2020, at 8:58 PM, Eric Norris wrote: >>> >>> ? >>> Congratulations, Mike! Please let us ALL know how it goes, as we of the K2 clan learn something with every post. >>> >>> 73 Eric WD6DBM >>> >>>> On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki > wrote: >>> >>> Well, that gives me something to do! I?ll let you know how it goes. >>> >>> Thanks, >>> Mike NJ2OM >>> >>> > On Jun 28, 2020, at 4:41 PM, Don Wilhelm >>> > wrote: >>> > >>> > ?Mike, >>> > >>> > Congratulations on finishing the K2/100. >>> > >>> > On the power output variation, that is not normal. >>> > First check the voltage delivered to the K2 while in transmit. >>> > You should do that by tapping DISPLAY and scrolling to the >>> voltage display. Your power source should provide at least 13.8 >>> volts, but higher (up to 15 volts) is better. If the voltage >>> shown by the K2 display during transmit is less than 12.6, make >>> certain all power cable connections are tight. >>> > >>> > If the power supply voltage is not the problem, then remove the >>> KPA100 from the base K2 and realign the bandpass filters. >>> Connect a dummy load to the base K2 BNC ANT jack. After that, >>> check the maximum power from the base K2 - you should have at >>> least 10 watts on each band. Record the power for each band. >>> > >>> > Using a dummy load takes away any question about your >>> antennas. Always check into a dummy load - with an in-line >>> wattmeter if necessary. >>> > >>> > The other possibility is that you have a problem in the Low >>> Pass Filter in the KPA100. To check for that, re-install the >>> KPA100, but power the base K2 from the coaxial power jack (no >>> power to the KPA100 - connect the dummy load to the SO2339 jack >>> on the KPA100. >>> > Again check the maximum power on each band from the base K2. >>> It should be no more than 5% less than you found with the base K2 >>> only. >>> > If there is a substantial difference in power, then check the >>> KPA100 Low Pass Filter - particularly checking the number of >>> turns on the toroids. >>> > >>> > 73, >>> > Don W3FPR >>> > >>> > >>> >> On 6/28/2020 4:04 PM, NJMike wrote: >>> >> I did notice a variation on the power output on different bands: >>> >> 80m - 100w >>> >> 40m - 100w >>> >> 20m - 80w >>> >> 15m - 50w >>> >> 10m - 30w >>> >> SWR was never above 1.3-1. >>> >> Does that sound normal? >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to norrislawfirm2 at gmail.com >>> > From dc10bobmorgan at gmail.com Mon Jun 29 09:48:25 2020 From: dc10bobmorgan at gmail.com (Bob Morgan) Date: Mon, 29 Jun 2020 06:48:25 -0700 (MST) Subject: [Elecraft] KPA 500 Codan Envoy Message-ID: <1593438505204-0.post@n2.nabble.com> I would like to know if any in the group has used the KPA 500 with a Codan Envoy 2. Any help would be much appreciated. Bob Morgan KJ4SV 865 207 9568 -- Sent from: http://elecraft.365791.n2.nabble.com/ From marklgoldberg at gmail.com Mon Jun 29 10:09:28 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Mon, 29 Jun 2020 07:09:28 -0700 Subject: [Elecraft] KPA 500 Codan Envoy In-Reply-To: <1593438505204-0.post@n2.nabble.com> References: <1593438505204-0.post@n2.nabble.com> Message-ID: That is not a Ham radio. Is it legal to use an amplifier type accepted for Ham radio for other services? 73, Mark W7MLG On Mon, Jun 29, 2020 at 6:49 AM Bob Morgan wrote: > > I would like to know if any in the group has used the KPA 500 with a Codan > Envoy 2. Any help would be much appreciated. > Bob Morgan > KJ4SV > 865 207 9568 > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to marklgoldberg at gmail.com From w1rm at comcast.net Mon Jun 29 10:16:45 2020 From: w1rm at comcast.net (Peter Chamalian) Date: Mon, 29 Jun 2020 10:16:45 -0400 Subject: [Elecraft] K3S and Micro Keyer II issue Message-ID: <000f01d64e1f$ec79db50$c56d91f0$@comcast.net> I'm running the K3S and Micro Keyer II. When I go on digital there are times when the K3S appears to be putting out RF but there is none. When I switch to CW all's well. If I turn the K3S, Microkeyer II off and shut down the device router software then turn it all back on, I get RF out on digital. Any ideas as to what's going on and what to do about it? Pete, W1RM W1RM at Comcast.net From donwilh at embarqmail.com Mon Jun 29 10:39:39 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 29 Jun 2020 10:39:39 -0400 Subject: [Elecraft] K3S and Micro Keyer II issue In-Reply-To: <000f01d64e1f$ec79db50$c56d91f0$@comcast.net> References: <000f01d64e1f$ec79db50$c56d91f0$@comcast.net> Message-ID: <88aad9fe-04a1-1c01-f694-9434f11a846e@embarqmail.com> Pete, Do you normally drive the audio to produce 4 bars solid with the 5th bar flashing? That is often the problem with no or low RF output. I do not have any answers on the Microkeyer II, someone else will have to respond to that. 73, Don W3FPR On 6/29/2020 10:16 AM, Peter Chamalian wrote: > I'm running the K3S and Micro Keyer II. When I go on digital there are > times when the K3S appears to be putting out RF but there is none. When I > switch to CW all's well. > > If I turn the K3S, Microkeyer II off and shut down the device router > software then turn it all back on, I get RF out on digital. > From Lyn at LNAINC.com Mon Jun 29 10:47:10 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Mon, 29 Jun 2020 09:47:10 -0500 Subject: [Elecraft] KPA 500 Codan Envoy In-Reply-To: References: <1593438505204-0.post@n2.nabble.com> Message-ID: <053901d64e24$2b9bfa80$82d3ef80$@LNAINC.com> Maybe Bob wants to use the Envoy 2 on the ham bands. I'm not familiar with the Codan line of military/business transceivers, but I see that model does have transmit coverage from 1.6 to 30 MHz. Perhaps the real question is whether it would be legal to use that rig on the ham bands. Since it can apparently cover the 160 - 10m bands without modification, wouldn't it need to be type accepted? 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mark Goldberg Sent: Monday, June 29, 2020 9:09 AM To: Bob Morgan Cc: Elecraft Mailing List Subject: Re: [Elecraft] KPA 500 Codan Envoy That is not a Ham radio. Is it legal to use an amplifier type accepted for Ham radio for other services? 73, Mark W7MLG On Mon, Jun 29, 2020 at 6:49 AM Bob Morgan wrote: > > I would like to know if any in the group has used the KPA 500 with a Codan > Envoy 2. Any help would be much appreciated. > Bob Morgan > KJ4SV > 865 207 9568 > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to marklgoldberg at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From marklgoldberg at gmail.com Mon Jun 29 11:52:06 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Mon, 29 Jun 2020 08:52:06 -0700 Subject: [Elecraft] KPA 500 Codan Envoy In-Reply-To: <053901d64e24$2b9bfa80$82d3ef80$@LNAINC.com> References: <1593438505204-0.post@n2.nabble.com> <053901d64e24$2b9bfa80$82d3ef80$@LNAINC.com> Message-ID: I think as a Ham, you can use anything you want on the Ham bands. As a manufacturer to sell it, it may need type acceptance for the service it is intended to be used in. Lots of people use aviation HF rigs on the Ham bands and you can use an amp that works on 11M or with more than the allowable gain. A manufacturer can't sell that for use in the Ham bands, but an individual Ham can use anything as long as it is operated within the regulations. I know a friend that has a huge amplifier capable of maybe 10kW. He got a visit from the FCC (long ago, don't think they care now). He showed them how it was correctly operated within the regs and how he had the ability to measure it and assure it was. The FCC guy wished him a good day. Other services where the operator is not technical and has not passed a technical exam require radios type accepted for that service as I understand things. 73, Mark W7MLG On Mon, Jun 29, 2020 at 7:47 AM Lyn Norstad wrote: > > Maybe Bob wants to use the Envoy 2 on the ham bands. I'm not familiar with > the Codan line of military/business transceivers, but I see that model does > have transmit coverage from 1.6 to 30 MHz. > > Perhaps the real question is whether it would be legal to use that rig on > the ham bands. Since it can apparently cover the 160 - 10m bands without > modification, wouldn't it need to be type accepted? > > 73 > Lyn, W0LEN > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mark Goldberg > Sent: Monday, June 29, 2020 9:09 AM > To: Bob Morgan > Cc: Elecraft Mailing List > Subject: Re: [Elecraft] KPA 500 Codan Envoy > > That is not a Ham radio. Is it legal to use an amplifier type accepted > for Ham radio for other services? > > 73, > > Mark > W7MLG > > > On Mon, Jun 29, 2020 at 6:49 AM Bob Morgan wrote: > > > > I would like to know if any in the group has used the KPA 500 with a Codan > > Envoy 2. Any help would be much appreciated. > > Bob Morgan > > KJ4SV > > 865 207 9568 > > > > > > > > -- > > Sent from: http://elecraft.365791.n2.nabble.com/ > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to marklgoldberg at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lyn at lnainc.com > From pincon at erols.com Mon Jun 29 11:06:22 2020 From: pincon at erols.com (Charlie T) Date: Mon, 29 Jun 2020 11:06:22 -0400 Subject: [Elecraft] KPA 500 Codan Envoy In-Reply-To: <053901d64e24$2b9bfa80$82d3ef80$@LNAINC.com> References: <1593438505204-0.post@n2.nabble.com> <053901d64e24$2b9bfa80$82d3ef80$@LNAINC.com> Message-ID: <003401d64e26$dd843080$988c9180$@erols.com> " Perhaps the real question is whether it would be legal to use that rig on the ham bands. Since it can apparently cover the 160 - 10m bands without modification, wouldn't it need to be type accepted?" Only if the company's intention was to sell specifically to the HAM community. They of course, have the OK for their existing market. Also, any licensed ham could use this radio if it was obtained on the "used" market. If this were NOT legal, we could therefore, not use commercial an old BC transmitter for legal limit AM. Or, for that matter ANY radio not designated for HAM use.....obviously, NOT the case. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Lyn Norstad Sent: Monday, June 29, 2020 10:47 AM To: 'Mark Goldberg' ; 'Bob Morgan' Cc: 'Elecraft Mailing List' Subject: Re: [Elecraft] KPA 500 Codan Envoy Maybe Bob wants to use the Envoy 2 on the ham bands. I'm not familiar with the Codan line of military/business transceivers, but I see that model does have transmit coverage from 1.6 to 30 MHz. Perhaps the real question is whether it would be legal to use that rig on the ham bands. Since it can apparently cover the 160 - 10m bands without modification, wouldn't it need to be type accepted? 73 Lyn, W0LEN From lists at subich.com Mon Jun 29 12:26:48 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Mon, 29 Jun 2020 12:26:48 -0400 Subject: [Elecraft] K3S and Micro Keyer II issue In-Reply-To: <000f01d64e1f$ec79db50$c56d91f0$@comcast.net> References: <000f01d64e1f$ec79db50$c56d91f0$@comcast.net> Message-ID: Are you following the instructions in the microHAM MK II Users Manual, and the example configurations for MK II and your software? > When I go on digital there are times when the K3S appears to be > putting out RF but there is none. What do you mean "appears to be putting out RF but there is none"? What constitutes "apparent RF" - a Wattmeter indication, indicated ALC of four bars, the TX LED? 73, ... Joe, W4TV On 2020-06-29 10:16 AM, Peter Chamalian wrote: > I'm running the K3S and Micro Keyer II. When I go on digital there are > times when the K3S appears to be putting out RF but there is none. When I > switch to CW all's well. > > > > If I turn the K3S, Microkeyer II off and shut down the device router > software then turn it all back on, I get RF out on digital. > > > > Any ideas as to what's going on and what to do about it? > > > > > > Pete, W1RM > > W1RM at Comcast.net > > From ny9h at arrl.net Mon Jun 29 12:40:29 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Mon, 29 Jun 2020 12:40:29 -0400 Subject: [Elecraft] KPA 500 Codan Envoy In-Reply-To: References: <1593438505204-0.post@n2.nabble.com> <053901d64e24$2b9bfa80$82d3ef80$@LNAINC.com> Message-ID: maybe the real questions are???? will the KPA500 work withan ALE requirement???? Band jumping and other cool stuff are essential for? ALE. On 6/29/2020 11:52 AM, Mark Goldberg wrote: > I think as a Ham, you can use anything you want on the Ham bands. As a > manufacturer to sell it, it may need type acceptance for the service > it is intended to be used in. > > Lots of people use aviation HF rigs on the Ham bands and you can use > an amp that works on 11M or with more than the allowable gain. A > manufacturer can't sell that for use in the Ham bands, but an > individual Ham can use anything as long as it is operated within the > regulations. I know a friend that has a huge amplifier capable of > maybe 10kW. He got a visit from the FCC (long ago, don't think they > care now). He showed them how it was correctly operated within the > regs and how he had the ability to measure it and assure it was. The > FCC guy wished him a good day. > > Other services where the operator is not technical and has not passed > a technical exam require radios type accepted for that service as I > understand things. > > 73, > > Mark > W7MLG > > On Mon, Jun 29, 2020 at 7:47 AM Lyn Norstad wrote: >> Maybe Bob wants to use the Envoy 2 on the ham bands. I'm not familiar with >> the Codan line of military/business transceivers, but I see that model does >> have transmit coverage from 1.6 to 30 MHz. >> >> Perhaps the real question is whether it would be legal to use that rig on >> the ham bands. Since it can apparently cover the 160 - 10m bands without >> modification, wouldn't it need to be type accepted? >> >> 73 >> Lyn, W0LEN >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Mark Goldberg >> Sent: Monday, June 29, 2020 9:09 AM >> To: Bob Morgan >> Cc: Elecraft Mailing List >> Subject: Re: [Elecraft] KPA 500 Codan Envoy >> >> That is not a Ham radio. Is it legal to use an amplifier type accepted >> for Ham radio for other services? >> >> 73, >> >> Mark >> W7MLG >> >> >> On Mon, Jun 29, 2020 at 6:49 AM Bob Morgan wrote: >>> I would like to know if any in the group has used the KPA 500 with a Codan >>> Envoy 2. Any help would be much appreciated. >>> Bob Morgan >>> KJ4SV >>> 865 207 9568 >>> >>> >>> >>> -- >>> Sent from: http://elecraft.365791.n2.nabble.com/ >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to marklgoldberg at gmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to lyn at lnainc.com >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ny9h at arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From donwilh at embarqmail.com Mon Jun 29 12:45:05 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 29 Jun 2020 12:45:05 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <0148E7E8-4F94-4A3E-BBF0-C9348E2D5DB3@gmail.com> References: <43f19aaf-90f1-a82a-01e3-0d610f657fc4@embarqmail.com> <0148E7E8-4F94-4A3E-BBF0-C9348E2D5DB3@gmail.com> Message-ID: <5ea3527e-8677-303d-bcb2-10ea6fb3e901@embarqmail.com> Mike, It is not reasonable to expect a normal wattmeter to have greater than a 10% accuracy. Consider that the spec for a Bird wattmeter is only 5% right after calibration. Digital wattmeters can be much more accurate, such as the LP-100 from Telepostinc, but they are calibrated to NIST traceable standards. 73, Don W3FPR On 6/29/2020 8:50 AM, Mike Kopacki wrote: > Okay. I will go back to your first reply and run through the items you suggested. > > Does the fact that on 40 and 80 meters, when I set the requested power to 100w, I actually see a little more - like 103w - but the power drops off on other bands - is that a clue to anything? > > Thanks, > Mike NJ2OM > >> On Jun 28, 2020, at 10:50 PM, Don Wilhelm wrote: >> >> ?Mike, >> >> No, the KPA100 wattmeter will display the actual power being produced if it is well calibrated. >> That is not necessarily the same as the requested power, although with a properly working KPA100 and a calibrated KPA100 wattmeter, the reading should be the same. >> >> 73, >> Don W3FPR >> >>> On 6/28/2020 9:41 PM, Mike Kopacki wrote: >>> I can run through some of the items you suggest. But I don?t have an external wattmeter that can measure 100 watts. I do have a QRP wattmeter. >>> >>> I will start tomorrow to try and work through the question. >>> >>> But to be completely accurate...you are saying that the KPA100 wattmeter (which is what I see when pressing TUNE and DISPLAY together), should read the same as the REQUESTED power (which is what the power knob sets)? >>> >>> Thanks, >>> Mike NJ2OM >>> >>>>> On Jun 28, 2020, at 8:58 PM, Eric Norris wrote: >>>> ? >>>> Congratulations, Mike! Please let us ALL know how it goes, as we of the K2 clan learn something with every post. >>>> >>>> 73 Eric WD6DBM >>>> >>>>> On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki > wrote: >>>> Well, that gives me something to do! I?ll let you know how it goes. >>>> >>>> Thanks, >>>> Mike NJ2OM >>>> >>>> > On Jun 28, 2020, at 4:41 PM, Don Wilhelm >>>> > wrote: >>>> > >>>> > ?Mike, >>>> > >>>> > Congratulations on finishing the K2/100. >>>> > >>>> > On the power output variation, that is not normal. >>>> > First check the voltage delivered to the K2 while in transmit. >>>> > You should do that by tapping DISPLAY and scrolling to the >>>> voltage display. Your power source should provide at least 13.8 >>>> volts, but higher (up to 15 volts) is better. If the voltage >>>> shown by the K2 display during transmit is less than 12.6, make >>>> certain all power cable connections are tight. >>>> > >>>> > If the power supply voltage is not the problem, then remove the >>>> KPA100 from the base K2 and realign the bandpass filters. >>>> Connect a dummy load to the base K2 BNC ANT jack. After that, >>>> check the maximum power from the base K2 - you should have at >>>> least 10 watts on each band. Record the power for each band. >>>> > >>>> > Using a dummy load takes away any question about your >>>> antennas. Always check into a dummy load - with an in-line >>>> wattmeter if necessary. >>>> > >>>> > The other possibility is that you have a problem in the Low >>>> Pass Filter in the KPA100. To check for that, re-install the >>>> KPA100, but power the base K2 from the coaxial power jack (no >>>> power to the KPA100 - connect the dummy load to the SO2339 jack >>>> on the KPA100. >>>> > Again check the maximum power on each band from the base K2. >>>> It should be no more than 5% less than you found with the base K2 >>>> only. >>>> > If there is a substantial difference in power, then check the >>>> KPA100 Low Pass Filter - particularly checking the number of >>>> turns on the toroids. >>>> > >>>> > 73, >>>> > Don W3FPR >>>> > >>>> > >>>> >> On 6/28/2020 4:04 PM, NJMike wrote: >>>> >> I did notice a variation on the power output on different bands: >>>> >> 80m - 100w >>>> >> 40m - 100w >>>> >> 20m - 80w >>>> >> 15m - 50w >>>> >> 10m - 30w >>>> >> SWR was never above 1.3-1. >>>> >> Does that sound normal? >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to norrislawfirm2 at gmail.com >>>> From gt-i at gmx.net Mon Jun 29 13:18:30 2020 From: gt-i at gmx.net (gt-i at gmx.net) Date: Mon, 29 Jun 2020 19:18:30 +0200 Subject: [Elecraft] Diversity receive versus QRM eliminators Message-ID: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> Hello all, In a recent rush to eliminate urban noise I bought an QRM eliminator. The working principle is to null out signals by shifting the phases of two antennas (one main/tx and one rx). I can see the effect sometimes, but it is not the holy grail for all types of QRM. I still don't get rid of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better but maybe thats my inner impression to justify buying this thing. Now, I do wonder how this differs from diversity receive, effectively versus local QRM. Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. Any thoughts or hints ? tnx 73 Gernot DF5RF From g4gnx at g4gnx.com Mon Jun 29 13:43:24 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Mon, 29 Jun 2020 17:43:24 +0000 Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> References: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> Message-ID: Hi Gernot. I use an LZ1AQ double mag loop (rotateable) to null out as much hash as possible. This feeds the RX Ant In input on the K3S. I also have an MFJ Noise eliminator which is also inline, using the LZ1AQ as the main (RX) antenna and I've tried a couple of antennas (including my HF vertical) as the 'noise' antenna and I don't find any noise suppression by phase elimination with the MFJ. I've yet to try a mini-whip antenna as the 'noise' antenna. I actually wonder if the MFJ unit is faulty, as I've heard that other people have at least noticed a small difference when using it. Once/if I get the MFJ untit to work, I may then buy one of the more expensive noise eliminators. 73, Alan. G4GNX ------ Original Message ------ From: gt-i at gmx.net To: "Elecraft Reflector" Sent: 29/06/2020 18:18:30 Subject: [Elecraft] Diversity receive versus QRM eliminators >Hello all, >In a recent rush to eliminate urban noise I bought an QRM eliminator. >The working principle is to null out signals by shifting the phases of >two antennas (one main/tx and one rx). I can see the effect sometimes, >but it is not the holy grail for all types of QRM. I still don't get rid >of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better >but maybe thats my inner impression to justify buying this thing. >Now, I do wonder how this differs from diversity receive, effectively >versus local QRM. >Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. >Any thoughts or hints ? >tnx 73 Gernot DF5RF > From donovanf at starpower.net Mon Jun 29 13:47:31 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Mon, 29 Jun 2020 13:47:31 -0400 (EDT) Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: Message-ID: <1533552183.214906.1593452851048.JavaMail.root@starpower.net> Hi Alan, The MFJ works very well as a noise eliminator only if the noise antenna is very close to the noise source, so that the noise is much stronger than the desired signals. If the noise antenna is receiving about the same signals as the main antenna the noise elimination function cannot work... 73 Frank W3LPL ----- Original Message ----- From: "Alan - G4GNX" To: "Elecraft Reflector" Sent: Monday, June 29, 2020 5:43:24 PM Subject: Re: [Elecraft] Diversity receive versus QRM eliminators Hi Gernot. I use an LZ1AQ double mag loop (rotateable) to null out as much hash as possible. This feeds the RX Ant In input on the K3S. I also have an MFJ Noise eliminator which is also inline, using the LZ1AQ as the main (RX) antenna and I've tried a couple of antennas (including my HF vertical) as the 'noise' antenna and I don't find any noise suppression by phase elimination with the MFJ. I've yet to try a mini-whip antenna as the 'noise' antenna. I actually wonder if the MFJ unit is faulty, as I've heard that other people have at least noticed a small difference when using it. Once/if I get the MFJ untit to work, I may then buy one of the more expensive noise eliminators. 73, Alan. G4GNX ------ Original Message ------ From: gt-i at gmx.net To: "Elecraft Reflector" Sent: 29/06/2020 18:18:30 Subject: [Elecraft] Diversity receive versus QRM eliminators >Hello all, >In a recent rush to eliminate urban noise I bought an QRM eliminator. >The working principle is to null out signals by shifting the phases of >two antennas (one main/tx and one rx). I can see the effect sometimes, >but it is not the holy grail for all types of QRM. I still don't get rid >of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better >but maybe thats my inner impression to justify buying this thing. >Now, I do wonder how this differs from diversity receive, effectively >versus local QRM. >Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. >Any thoughts or hints ? >tnx 73 Gernot DF5RF > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From donovanf at starpower.net Mon Jun 29 13:50:49 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Mon, 29 Jun 2020 13:50:49 -0400 (EDT) Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> Message-ID: <423809198.215848.1593453049002.JavaMail.root@starpower.net> Diversity is not helpful as a QRM eliminator. Antennas with steerable nulls can be helpful, small loop antennas have very deep nulls but also require a high gain, low noise figure preamp and very careful attention to common mode rejection during installation 73 Frank W3LPL ----- Original Message ----- From: gt-i at gmx.net To: "Elecraft Reflector" Sent: Monday, June 29, 2020 5:18:30 PM Subject: [Elecraft] Diversity receive versus QRM eliminators Hello all, In a recent rush to eliminate urban noise I bought an QRM eliminator. The working principle is to null out signals by shifting the phases of two antennas (one main/tx and one rx). I can see the effect sometimes, but it is not the holy grail for all types of QRM. I still don't get rid of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better but maybe thats my inner impression to justify buying this thing. Now, I do wonder how this differs from diversity receive, effectively versus local QRM. Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. Any thoughts or hints ? tnx 73 Gernot DF5RF ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From tommy58 at hvc.rr.com Mon Jun 29 14:06:28 2020 From: tommy58 at hvc.rr.com (Tommy) Date: Mon, 29 Jun 2020 14:06:28 -0400 Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: <1533552183.214906.1593452851048.JavaMail.root@starpower.net> References: <1533552183.214906.1593452851048.JavaMail.root@starpower.net> Message-ID: <5b64e872-61f3-89a8-45d3-d1be1d1328fd@hvc.rr.com> ?I have the MFJ 1026, with the built in whip and it eliminated a local broadcast station from my overloaded Kenwood 450S. I use a Myantenna endfed for the Kenwood. 73 de Tom KB2SMS On 6/29/20 1:47 PM, donovanf at starpower.net wrote: > Hi Alan, > > > The MFJ works very well as a noise eliminator only if the noise antenna > is very close to the noise source, so that the noise is much stronger than > the desired signals. If the noise antenna is receiving about the same > signals as the main antenna the noise elimination function cannot work... > > > 73 > Frank > W3LPL From hirokik at aol.com Mon Jun 29 15:06:34 2020 From: hirokik at aol.com (HIROKI KATO) Date: Mon, 29 Jun 2020 12:06:34 -0700 Subject: [Elecraft] FS: K3/0 mini F + RRC-1258 MkII References: <32832795-671E-4364-AFD5-C68EDD9AD081.ref@aol.com> Message-ID: <32832795-671E-4364-AFD5-C68EDD9AD081@aol.com> Comes with mic, ps, cables. Works perfectly. I have been using this combo to access and operate the Remote Ham Radio?s network of QRO stations. $600 for all plus shipping. Please contact me directly. I?m OK on QRZ.com . Hiroki AH6CY From hbjr at optilink.us Mon Jun 29 15:40:55 2020 From: hbjr at optilink.us (Hank) Date: Mon, 29 Jun 2020 15:40:55 -0400 Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> References: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> Message-ID: <35d1e3c0dcee6c3958391ef7f4ba2826@optilink.us> Using something like the MFJ-1026 works well for me, BUT the 2 receceiving antennas must be similar to work well in my experience - i.e. 2 dipoles or 2 verticals with similar gain characteristics to get the most out of the little black box. Hank K4HYJ ----- Original Message ----- From: gt-i at gmx.net Date: 06/29/20 13:19 To: Elecraft Reflector (elecraft at mailman.qth.net) Subject: [Elecraft] Diversity receive versus QRM eliminators Hello all, In a recent rush to eliminate urban noise I bought an QRM eliminator. The working principle is to null out signals by shifting the phases of two antennas (one main/tx and one rx). I can see the effect sometimes, but it is not the holy grail for all types of QRM. I still don't get rid of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better but maybe thats my inner impression to justify buying this thing. Now, I do wonder how this differs from diversity receive, effectively versus local QRM. Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. Any thoughts or hints ? tnx 73 Gernot DF5RF ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hbjr at optilink.us From w5sv.dave at gmail.com Mon Jun 29 15:54:42 2020 From: w5sv.dave at gmail.com (David F. Reed) Date: Mon, 29 Jun 2020 19:54:42 +0000 Subject: [Elecraft] SSTV & K3/K3S? Message-ID: <8eb3ee0e-7a8f-8705-ae70-56b7928a9e9b@gmail.com> I am thinking of trying SSTV and have a K3 that is almost a K3S, so it has the USB & sound card built it. I am looking for any setup info that might help; I am running MMSSTV. I assume it would use DATA mode; is that correct? Any other info like power to limit it to, setting ALC, (I assume compression off) Obviously, I don't know much and would like to get running with minimal discomfort or displeasure to those I share the bands with. Thanks for your help & 73 de Dave, W5SV From donwilh at embarqmail.com Mon Jun 29 16:32:29 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 29 Jun 2020 16:32:29 -0400 Subject: [Elecraft] SSTV & K3/K3S? In-Reply-To: <8eb3ee0e-7a8f-8705-ae70-56b7928a9e9b@gmail.com> References: <8eb3ee0e-7a8f-8705-ae70-56b7928a9e9b@gmail.com> Message-ID: <13fd0bcf-8e0a-f3d1-7df4-ca44918d7970@embarqmail.com> Dave, As far as I know that is 'just another digital mode'. Yes, you would use DATA mode - specifically DATA A. It sets the compression off and equalization flat automatically, plus it will not alter your SSB settings. For information on how to set the audio levels, go to the article on my webpage www.w3fpr.com. 73, Don W3FPR On 6/29/2020 3:54 PM, David F. Reed wrote: > I am thinking of trying SSTV and have a K3 that is almost a K3S, so it > has the USB & sound card built it. > > I am looking for any setup info that might help; I am running MMSSTV. > > I assume it would use DATA mode; is that correct? > > Any other info like power to limit it to, setting ALC, (I assume > compression off) > > Obviously, I don't know much and would like to get running with minimal > discomfort or displeasure to those I share the bands with. > > Thanks for your help & 73 de Dave, W5SV > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donwilh at embarqmail.com From hb9cvq at hispeed.ch Mon Jun 29 16:51:08 2020 From: hb9cvq at hispeed.ch (hb9cvq at hispeed.ch) Date: Mon, 29 Jun 2020 22:51:08 +0200 Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: <423809198.215848.1593453049002.JavaMail.root@starpower.net> References: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> <423809198.215848.1593453049002.JavaMail.root@starpower.net> Message-ID: <010801d64e57$040de8b0$0c29ba10$@hispeed.ch> Hi All, I use in my K3S the RX in and RX out (RCA plugs) on the backside for inserting the denoised signal from my DXE NCC-1 Phasing Box output plug. This box has two channels, were one can do e.g. up to -180deg phase reversal. CH A and B signals are finally send to an internal power combiner and to K3S RX in. My have 2 selectable TX/RX antennas, 2x36m tuned doublet 160 to 6m @ 24m center and a Steppir DB18E @ 18m. RX signal come out safely from K3S RX (out) going to CH A NCC-1. My QRM local noise pick-up ant is a 1m diameter ALA 1530 electronic mag. loop (predominantly picking up local noise, no DX , horizontally mounted in the attics, about -60dB decoupled from TX antennas) This signal goes into CH B of NCC-1 By carefully equalizing/adjusting the amplitudes CH1 /CH2 NCC-1 I then try do "Anti Phase". This will mostly reduce the local noise on the used main antenna. The limitation is you can only effectively focus (phase) on one single local QRM source. The unit NCC-1 is good up to around 17m Band. It is hard to get more than 20dB S/N (about 2.5 S-Units) improvement. In some local noise cases, not being a point source (Line source : PLC , VDSL etc. ) I am more successful using a LISN ( EMC , Line/Mains 50 Ohm stabilization, decoupling network, 230V, 50 Hz) to safely replace the signal from the mag. loop. This procedure picks up the conducted noise on the mains in the house/flat more in an integral way. This does not act as a "point source" Experiments with predominantly E-field ( small/short dipole antennas) for local noise pick up are ongoing. 73 Andy HB9CVQ, DK2VQ, AK4IG https://www.qrz.com/db/HB9CVQ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of donovanf at starpower.net Sent: Montag, 29. Juni 2020 19:51 To: Elecraft Reflector Subject: Re: [Elecraft] Diversity receive versus QRM eliminators Diversity is not helpful as a QRM eliminator. Antennas with steerable nulls can be helpful, small loop antennas have very deep nulls but also require a high gain, low noise figure preamp and very careful attention to common mode rejection during installation 73 Frank W3LPL ----- Original Message ----- From: gt-i at gmx.net To: "Elecraft Reflector" Sent: Monday, June 29, 2020 5:18:30 PM Subject: [Elecraft] Diversity receive versus QRM eliminators Hello all, In a recent rush to eliminate urban noise I bought an QRM eliminator. The working principle is to null out signals by shifting the phases of two antennas (one main/tx and one rx). I can see the effect sometimes, but it is not the holy grail for all types of QRM. I still don't get rid of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better but maybe thats my inner impression to justify buying this thing. Now, I do wonder how this differs from diversity receive, effectively versus local QRM. Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. Any thoughts or hints ? tnx 73 Gernot DF5RF ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hb9cvq at hispeed.ch From gt-i at gmx.net Mon Jun 29 17:28:53 2020 From: gt-i at gmx.net (gt-i at gmx.net) Date: Mon, 29 Jun 2020 23:28:53 +0200 Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: <1533552183.214906.1593452851048.JavaMail.root@starpower.net> References: <1533552183.214906.1593452851048.JavaMail.root@starpower.net> Message-ID: <8b0a575e-7ee5-bb8f-0406-d630e9ee90e4@gmx.net> Good hint - tnx Frank. Will try a mini whip or small loop. 73 Gernot DF5RF Am 29.06.2020 um 19:47 schrieb donovanf at starpower.net: > Hi Alan, > > > The MFJ works very well as a noise eliminator only if the noise antenna > is very close to the noise source, so that the noise is much stronger than > the desired signals. If the noise antenna is receiving about the same > signals as the main antenna the noise elimination function cannot work... > > > 73 > Frank > W3LPL > > ----- Original Message ----- > > From: "Alan - G4GNX" > To: "Elecraft Reflector" > Sent: Monday, June 29, 2020 5:43:24 PM > Subject: Re: [Elecraft] Diversity receive versus QRM eliminators > > Hi Gernot. > > I use an LZ1AQ double mag loop (rotateable) to null out as much hash as > possible. This feeds the RX Ant In input on the K3S. I also have an MFJ > Noise eliminator which is also inline, using the LZ1AQ as the main (RX) > antenna and I've tried a couple of antennas (including my HF vertical) > as the 'noise' antenna and I don't find any noise suppression by phase > elimination with the MFJ. I've yet to try a mini-whip antenna as the > 'noise' antenna. I actually wonder if the MFJ unit is faulty, as I've > heard that other people have at least noticed a small difference when > using it. Once/if I get the MFJ untit to work, I may then buy one of the > more expensive noise eliminators. > > 73, > > Alan. G4GNX > > > ------ Original Message ------ > From: gt-i at gmx.net > To: "Elecraft Reflector" > Sent: 29/06/2020 18:18:30 > Subject: [Elecraft] Diversity receive versus QRM eliminators > >> Hello all, >> In a recent rush to eliminate urban noise I bought an QRM eliminator. >> The working principle is to null out signals by shifting the phases of >> two antennas (one main/tx and one rx). I can see the effect sometimes, >> but it is not the holy grail for all types of QRM. I still don't get rid >> of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better >> but maybe thats my inner impression to justify buying this thing. >> Now, I do wonder how this differs from diversity receive, effectively >> versus local QRM. >> Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. >> Any thoughts or hints ? >> tnx 73 Gernot DF5RF >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donovanf at starpower.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gt-i at gmx.net From hs0zed at gmail.com Mon Jun 29 17:30:14 2020 From: hs0zed at gmail.com (Martin Sole) Date: Tue, 30 Jun 2020 04:30:14 +0700 Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> References: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> Message-ID: <8d165a8d-58ed-be8b-8550-d939738c8ee0@gmail.com> QRM eliminators can work surprisingy well at times and appear next to useles at others. It's rarely the unit, rather the situation. All of these similar units, of which the MFJ noise cancelling signal enhancer is but one operate by combining two essentially identical signals, the unwanted noise. With the phase of one 180 degree from the other and the amplitude matched total cancellation should occur, and it will, almost certainly. The difficulties are two fold. First is that whilst phase adjustment can be made over a reasonable range the amplitudes must be the same. That's not so easy and the noise antenna often needs to hear a lot more of the noise signal than you might think necessary. The second problem is that these units can only eliminate one noise source. If you are surrounded by plasma and switch mode devices removing one just leaves a bunch more. The problem here, other than amplitude matching is that all of the arriving noise signals from different sources have a different phase relationship between your main and noise antenna. So adjusting for one noise signal to have 180 degree relationship between main and noise antenna will make every other signal have a different phase relationship, the signals come from different directions and different distances so reach the two antennas at different times, and hence different phases. Cancelling one doesn't do much for the other. If you have one noise source coming from one direction and you can collect enough of it then the so-called QRM eliminators work rather well, until something shifts and the phase changes and your tweaking again. Of course once Wayne gets done with all the K4 trickery he will have time to develop the K-null that will eliminate all unwanted noise from all sources on all frequencies at all times at the push of a button. Join the queue :-) Martin, HS0ZED On 30/6/63 00:18, gt-i at gmx.net wrote: > Hello all, > In a recent rush to eliminate urban noise I bought an QRM eliminator. > The working principle is to null out signals by shifting the phases of > two antennas (one main/tx and one rx). I can see the effect sometimes, > but it is not the holy grail for all types of QRM. I still don't get rid > of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit better > but maybe thats my inner impression to justify buying this thing. > Now, I do wonder how this differs from diversity receive, effectively > versus local QRM. > Note I have a 10m vertical as the 2nd ant, while the main ant is > horizontal. > Any thoughts or hints ? > tnx 73 Gernot DF5RF > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to hs0zed at gmail.com From gt-i at gmx.net Mon Jun 29 17:36:32 2020 From: gt-i at gmx.net (gt-i at gmx.net) Date: Mon, 29 Jun 2020 23:36:32 +0200 Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: <010801d64e57$040de8b0$0c29ba10$@hispeed.ch> References: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> <423809198.215848.1593453049002.JavaMail.root@starpower.net> <010801d64e57$040de8b0$0c29ba10$@hispeed.ch> Message-ID: Andy, mni tnx - good ideas! Will rewire my QRM box to the K3 RXIn out to avoid the extra PTT-relay clicks imposed by the QRM-box. It is the Wimo-QRM Eliminator. Not as Hi -end as the NCC-1 but a start. Just looked-up the DXE? - now the NCC-2 is out and it now also has the same extra PTT switching as my cheap box! Why is this required, as I just learned the K3 can handle this smoothly? tnx 73 Gernot DF5RF Am 29.06.2020 um 22:51 schrieb hb9cvq at hispeed.ch: > Hi All, > > I use in my K3S the RX in and RX out (RCA plugs) on the backside for > inserting the denoised signal from my DXE NCC-1 Phasing Box output plug. > This box has two channels, were one can do e.g. up to -180deg phase > reversal. CH A and B signals are finally send to an internal power combiner > and to K3S RX in. > > My have 2 selectable TX/RX antennas, 2x36m tuned doublet 160 to 6m @ 24m > center and a Steppir DB18E @ 18m. > RX signal come out safely from K3S RX (out) going to CH A NCC-1. > My QRM local noise pick-up ant is a 1m diameter ALA 1530 electronic mag. > loop (predominantly picking up local noise, no DX , horizontally mounted in > the attics, about -60dB decoupled from TX antennas) > This signal goes into CH B of NCC-1 > By carefully equalizing/adjusting the amplitudes CH1 /CH2 NCC-1 I then try > do "Anti Phase". This will mostly reduce the local noise on the used main > antenna. > > The limitation is you can only effectively focus (phase) on one single > local QRM source. The unit NCC-1 is good up to around 17m Band. It is hard > to get more than 20dB S/N (about 2.5 S-Units) improvement. > > In some local noise cases, not being a point source (Line source : PLC , > VDSL etc. ) I am more successful using a LISN ( EMC , Line/Mains 50 Ohm > stabilization, decoupling network, 230V, 50 Hz) to safely replace the signal > from the mag. loop. > This procedure picks up the conducted noise on the mains in the house/flat > more in an integral way. This does not act as a "point source" > > Experiments with predominantly E-field ( small/short dipole antennas) for > local noise pick up are ongoing. > > 73 Andy > HB9CVQ, DK2VQ, AK4IG > https://www.qrz.com/db/HB9CVQ > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of donovanf at starpower.net > Sent: Montag, 29. Juni 2020 19:51 > To: Elecraft Reflector > Subject: Re: [Elecraft] Diversity receive versus QRM eliminators > > Diversity is not helpful as a QRM eliminator. > > > Antennas with steerable nulls can be helpful, small loop antennas have very > deep nulls but also require a high gain, low noise figure preamp and very > careful attention to common mode rejection during installation > > > 73 > Frank > W3LPL > > ----- Original Message ----- > > From: gt-i at gmx.net > To: "Elecraft Reflector" > Sent: Monday, June 29, 2020 5:18:30 PM > Subject: [Elecraft] Diversity receive versus QRM eliminators > > Hello all, > In a recent rush to eliminate urban noise I bought an QRM eliminator. > The working principle is to null out signals by shifting the phases of two > antennas (one main/tx and one rx). I can see the effect sometimes, but it is > not the holy grail for all types of QRM. I still don't get rid of the > PSU/LED/plasmaish noise here, sometimes the S/N is a bit better but maybe > thats my inner impression to justify buying this thing. > Now, I do wonder how this differs from diversity receive, effectively versus > local QRM. > Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. > > Any thoughts or hints ? > tnx 73 Gernot DF5RF > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email list: > http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to hb9cvq at hispeed.ch > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gt-i at gmx.net From nv4c.ian at gmail.com Mon Jun 29 18:35:44 2020 From: nv4c.ian at gmail.com (Ian Kahn, NV4C) Date: Mon, 29 Jun 2020 18:35:44 -0400 Subject: [Elecraft] KX2 Drift During Field Day Message-ID: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> All, I have KX2 s/n 2862. I noticed while operating Field Day that, about every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen this in their KX2? I will admit it is possible this was just the effect of RF getting back into the rig, but at 10W, I'm not really sure where enough would come from to cause an issue. Thanks and 73, Ian, NV4C From nv4c.ian at gmail.com Mon Jun 29 18:39:21 2020 From: nv4c.ian at gmail.com (Ian Kahn, NV4C) Date: Mon, 29 Jun 2020 18:39:21 -0400 Subject: [Elecraft] K4 Books Message-ID: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> All, I have a question that is probably best answered by Eric, Wayne, or one of the K4 testers. Since Fred Cady, KE7X (sk), is no longer with us to write a K4 book, are the UI and firmware close enough to that of the K3/K3S that we can use those books to learn it? Or, is Elecraft working with another author (hopefully of Fred's skill and stature, but that would be very hard to find) to write a supplemental K4 book? Or, are we all just out of look in that department? Thanks and 73, Ian, NV4C From matt.vk2rq at gmail.com Mon Jun 29 18:57:59 2020 From: matt.vk2rq at gmail.com (Matt Maguire) Date: Tue, 30 Jun 2020 08:57:59 +1000 Subject: [Elecraft] K4 Books In-Reply-To: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> Message-ID: I would suggest that the architecture of the K4 is a significant departure from the K3 series, and I would think that the books treating the K3 would be of limited usefulness in understanding how to get the most out of the K4. 73, Matt VK2RQ On Tue, 30 Jun 2020 at 08:42, Ian Kahn, NV4C wrote: > All, > > I have a question that is probably best answered by Eric, Wayne, or one > of the K4 testers. Since Fred Cady, KE7X (sk), is no longer with us to > write a K4 book, are the UI and firmware close enough to that of the > K3/K3S that we can use those books to learn it? Or, is Elecraft working > with another author (hopefully of Fred's skill and stature, but that > would be very hard to find) to write a supplemental K4 book? Or, are we > all just out of look in that department? > > Thanks and 73, > > Ian, NV4C > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to matt.vk2rq at gmail.com > From jim at audiosystemsgroup.com Mon Jun 29 19:06:42 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 29 Jun 2020 16:06:42 -0700 Subject: [Elecraft] K4 Books In-Reply-To: References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> Message-ID: <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> On 6/29/2020 3:57 PM, Matt Maguire wrote: > I would suggest that the architecture of the K4 is a significant departure > from the K3 series, and I would think that the books treating the K3 would > be of limited usefulness in understanding how to get the most out of the K4. Maybe study the manual? Worked fine for me with most ham gear I've owned, including the K3 and companion products. 73, Jim K9YC From donwilh at embarqmail.com Mon Jun 29 19:20:34 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 29 Jun 2020 19:20:34 -0400 Subject: [Elecraft] K4 Books In-Reply-To: <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> Message-ID: <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Tongue planted firmly in cheek -- What? Study the manual? We are hams and can just push buttons and turn knobs and see what happens! Seriously, I think some hams really do it that way. How much more pleasure would they get out of their gear if they took the time to study the manual. That is NOT a casual perusal paging through the manual. That is sitting down in front of the radio with the manual open and identifying things as well as trying things out with a dummy load when it involves transmitting. 73, Don W3FPR On 6/29/2020 7:06 PM, Jim Brown wrote: > > Maybe study the manual? Worked fine for me with most ham gear I've > owned, including the K3 and companion products. > > 73, Jim K9YC From k6dgw at foothill.net Mon Jun 29 19:37:01 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Mon, 29 Jun 2020 16:37:01 -0700 Subject: [Elecraft] K4 Books In-Reply-To: <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Message-ID: I found that the value in Fred's book was due to approach.? The K3 manual is good ... very good ... and like most all user manuals, takes a "control approach" -- "The SHIFT and WIDTH controls adjust the center frequency and the width of the DSP filtering."? Fred's book explains what the DSP filtering is, the effects the controls have on it, and how it affects operation of the radio. I'm not suggesting the "control approach" is wrong or bad, user manuals need to explain what each control does.? It's just a different approach to the subject.? I find both very useful. From what little I know about the K4, I can't imagine that either a K3 manual or Fred's K3 book would be of much value for a new K4 owner. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/29/2020 4:20 PM, Don Wilhelm wrote: > Tongue planted firmly in cheek -- > What? Study the manual?? We are hams and can just push buttons and > turn knobs and see what happens! > > Seriously, I think some hams really do it that way. > > How much more pleasure would they get out of their gear if they took > the time to study the manual.? That is NOT a casual perusal paging > through the manual. > That is sitting down in front of the radio with the manual open and > identifying things as well as trying things out with a dummy load when > it involves transmitting. > > 73, > Don W3FPR > > On 6/29/2020 7:06 PM, Jim Brown wrote: >> >> Maybe study the manual? Worked fine for me with most ham gear I've >> owned, including the K3 and companion products. >> >> 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k6dgw at foothill.net From k6dgw at foothill.net Mon Jun 29 19:38:00 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Mon, 29 Jun 2020 16:38:00 -0700 Subject: [Elecraft] KX2 Drift During Field Day In-Reply-To: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> References: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> Message-ID: Was it in the sun? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 6/29/2020 3:35 PM, Ian Kahn, NV4C wrote: > All, > > I have KX2 s/n 2862. I noticed while operating Field Day that, about > every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen > this in their KX2? I will admit it is possible this was just the > effect of RF getting back into the rig, but at 10W, I'm not really > sure where enough would come from to cause an issue. > > Thanks and 73, > > Ian, NV4C From k1rdd73 at gmail.com Mon Jun 29 19:38:32 2020 From: k1rdd73 at gmail.com (Doug Daniels) Date: Mon, 29 Jun 2020 19:38:32 -0400 Subject: [Elecraft] K4 Books In-Reply-To: <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Message-ID: As I am reading the manual for my new KX2, and watching a YouTube where the guy was testing the rig with it set to 0 power. I just ordered the dummy load from Elecraft. Thanks for the suggestion. On Mon, Jun 29, 2020 at 7:21 PM Don Wilhelm wrote: > Tongue planted firmly in cheek -- > What? Study the manual? We are hams and can just push buttons and turn > knobs and see what happens! > > Seriously, I think some hams really do it that way. > > How much more pleasure would they get out of their gear if they took the > time to study the manual. That is NOT a casual perusal paging through > the manual. > That is sitting down in front of the radio with the manual open and > identifying things as well as trying things out with a dummy load when > it involves transmitting. > > 73, > Don W3FPR > > On 6/29/2020 7:06 PM, Jim Brown wrote: > > > > Maybe study the manual? Worked fine for me with most ham gear I've > > owned, including the K3 and companion products. > > > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k1rdd73 at gmail.com > -- --... ...-- Doug From nv4c.ian at gmail.com Mon Jun 29 19:46:37 2020 From: nv4c.ian at gmail.com (Ian Kahn) Date: Mon, 29 Jun 2020 19:46:37 -0400 Subject: [Elecraft] KX2 Drift During Field Day In-Reply-To: References: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> Message-ID: Not directly. I was outside, but under a pop-up canopy. Thanks and 73, Ian, NV4C On Mon, Jun 29, 2020 at 7:39 PM Fred Jensen wrote: > Was it in the sun? > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/29/2020 3:35 PM, Ian Kahn, NV4C wrote: > > All, > > > > I have KX2 s/n 2862. I noticed while operating Field Day that, about > > every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen > > this in their KX2? I will admit it is possible this was just the > > effect of RF getting back into the rig, but at 10W, I'm not really > > sure where enough would come from to cause an issue. > > > > Thanks and 73, > > > > Ian, NV4C > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nv4c.ian at gmail.com > -- Ian Kahn, NV4C Roswell, GA EM74ua nv4c.ian at gmail.com 10-10 #74624 North Georgia Chapter #2038 PODXS 070 #1962 K3 #281, P3 #688 KAT500 #860, KPA500 #1468 From linehangp at me.com Mon Jun 29 20:13:28 2020 From: linehangp at me.com (George P Linehan III) Date: Mon, 29 Jun 2020 17:13:28 -0700 Subject: [Elecraft] HAVE KX-3 Loaded will trade for K-3s + $$ Message-ID: <183946AB-01EA-4BC1-B1F1-652E31C04207@me.com> Thank you & 73!!! From k3bh at arrl.net Mon Jun 29 20:20:46 2020 From: k3bh at arrl.net (Jay Rutherford) Date: Mon, 29 Jun 2020 20:20:46 -0400 Subject: [Elecraft] KX2 Drift During Field Day In-Reply-To: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> References: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> Message-ID: <30e2f0c0-bd51-46f7-9eb1-d85c2111bcec@www.fastmail.com> ONE Hertz?? 73 Jay K3BH On Mon, Jun 29, 2020, at 18:35, Ian Kahn, NV4C wrote: > All, > > I have KX2 s/n 2862. I noticed while operating Field Day that, about > every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen > this in their KX2? I will admit it is possible this was just the effect > of RF getting back into the rig, but at 10W, I'm not really sure where > enough would come from to cause an issue. > > Thanks and 73, > > Ian, NV4C > From hb9cvq at hispeed.ch Mon Jun 29 20:23:09 2020 From: hb9cvq at hispeed.ch (hb9cvq at hispeed.ch) Date: Tue, 30 Jun 2020 02:23:09 +0200 Subject: [Elecraft] Diversity receive versus QRM eliminators In-Reply-To: References: <0e84a44f-54f1-011d-4223-81ffa17a758e@gmx.net> <423809198.215848.1593453049002.JavaMail.root@starpower.net> <010801d64e57$040de8b0$0c29ba10$@hispeed.ch> Message-ID: <003901d64e74$a2775230$e765f690$@hispeed.ch> Gernot, Why ? Generally you need to make sure you are not overloading/destroying RXin K3. 73 Andy HB9CVQ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of gt-i at gmx.net Sent: Montag, 29. Juni 2020 23:37 To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Diversity receive versus QRM eliminators Andy, mni tnx - good ideas! Will rewire my QRM box to the K3 RXIn out to avoid the extra PTT-relay clicks imposed by the QRM-box. It is the Wimo-QRM Eliminator. Not as Hi -end as the NCC-1 but a start. Just looked-up the DXE - now the NCC-2 is out and it now also has the same extra PTT switching as my cheap box! Why is this required, as I just learned the K3 can handle this smoothly? tnx 73 Gernot DF5RF Am 29.06.2020 um 22:51 schrieb hb9cvq at hispeed.ch: > Hi All, > > I use in my K3S the RX in and RX out (RCA plugs) on the backside for > inserting the denoised signal from my DXE NCC-1 Phasing Box output plug. > This box has two channels, were one can do e.g. up to -180deg phase > reversal. CH A and B signals are finally send to an internal power > combiner and to K3S RX in. > > My have 2 selectable TX/RX antennas, 2x36m tuned doublet 160 to 6m @ > 24m center and a Steppir DB18E @ 18m. > RX signal come out safely from K3S RX (out) going to CH A NCC-1. > My QRM local noise pick-up ant is a 1m diameter ALA 1530 electronic mag. > loop (predominantly picking up local noise, no DX , horizontally > mounted in the attics, about -60dB decoupled from TX antennas) This > signal goes into CH B of NCC-1 By carefully equalizing/adjusting the > amplitudes CH1 /CH2 NCC-1 I then try do "Anti Phase". This will mostly > reduce the local noise on the used main antenna. > > The limitation is you can only effectively focus (phase) on one > single local QRM source. The unit NCC-1 is good up to around 17m Band. > It is hard to get more than 20dB S/N (about 2.5 S-Units) improvement. > > In some local noise cases, not being a point source (Line source : PLC > , VDSL etc. ) I am more successful using a LISN ( EMC , Line/Mains 50 > Ohm stabilization, decoupling network, 230V, 50 Hz) to safely replace > the signal from the mag. loop. > This procedure picks up the conducted noise on the mains in the > house/flat more in an integral way. This does not act as a "point source" > > Experiments with predominantly E-field ( small/short dipole antennas) > for local noise pick up are ongoing. > > 73 Andy > HB9CVQ, DK2VQ, AK4IG > https://www.qrz.com/db/HB9CVQ > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On Behalf Of donovanf at starpower.net > Sent: Montag, 29. Juni 2020 19:51 > To: Elecraft Reflector > Subject: Re: [Elecraft] Diversity receive versus QRM eliminators > > Diversity is not helpful as a QRM eliminator. > > > Antennas with steerable nulls can be helpful, small loop antennas have > very deep nulls but also require a high gain, low noise figure preamp > and very careful attention to common mode rejection during > installation > > > 73 > Frank > W3LPL > > ----- Original Message ----- > > From: gt-i at gmx.net > To: "Elecraft Reflector" > Sent: Monday, June 29, 2020 5:18:30 PM > Subject: [Elecraft] Diversity receive versus QRM eliminators > > Hello all, > In a recent rush to eliminate urban noise I bought an QRM eliminator. > The working principle is to null out signals by shifting the phases of > two antennas (one main/tx and one rx). I can see the effect sometimes, > but it is not the holy grail for all types of QRM. I still don't get > rid of the PSU/LED/plasmaish noise here, sometimes the S/N is a bit > better but maybe thats my inner impression to justify buying this thing. > Now, I do wonder how this differs from diversity receive, effectively > versus local QRM. > Note I have a 10m vertical as the 2nd ant, while the main ant is horizontal. > > Any thoughts or hints ? > tnx 73 Gernot DF5RF > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email list: > http://www.qsl.net/donate.html Message delivered to > donovanf at starpower.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > hb9cvq at hispeed.ch > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to gt-i at gmx.net ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hb9cvq at hispeed.ch From nv4c.ian at gmail.com Mon Jun 29 20:25:53 2020 From: nv4c.ian at gmail.com (Ian Kahn) Date: Mon, 29 Jun 2020 20:25:53 -0400 Subject: [Elecraft] K4 Books In-Reply-To: References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> Message-ID: Matt, I would think so, too. However, a lot of the comments seen on this reflector talk about how similar they are, and that if a user is familiar with a K3/K3S, s/he will have no problem with the K4. So, at the risk of looking foolish, I pose the question. No harm in asking. However, I would like a definitive answer from either Eric/Wayne, or someone from the test team. 73 de, Ian, NV4C On Mon, Jun 29, 2020 at 6:58 PM Matt Maguire wrote: > I would suggest that the architecture of the K4 is a significant departure > from the K3 series, and I would think that the books treating the K3 would > be of limited usefulness in understanding how to get the most out of the K4. > > 73, Matt VK2RQ > > On Tue, 30 Jun 2020 at 08:42, Ian Kahn, NV4C wrote: > >> All, >> >> I have a question that is probably best answered by Eric, Wayne, or one >> of the K4 testers. Since Fred Cady, KE7X (sk), is no longer with us to >> write a K4 book, are the UI and firmware close enough to that of the >> K3/K3S that we can use those books to learn it? Or, is Elecraft working >> with another author (hopefully of Fred's skill and stature, but that >> would be very hard to find) to write a supplemental K4 book? Or, are we >> all just out of look in that department? >> >> Thanks and 73, >> >> Ian, NV4C >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to matt.vk2rq at gmail.com >> > -- Ian Kahn, NV4C Roswell, GA EM74ua nv4c.ian at gmail.com 10-10 #74624 North Georgia Chapter #2038 PODXS 070 #1962 K3 #281, P3 #688 KAT500 #860, KPA500 #1468 From nv4c.ian at gmail.com Mon Jun 29 20:27:12 2020 From: nv4c.ian at gmail.com (Ian Kahn) Date: Mon, 29 Jun 2020 20:27:12 -0400 Subject: [Elecraft] K4 Books In-Reply-To: <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> Message-ID: For my K3, I DID study the manual. I also bought and read Dr. Cady's book. Each was valuable in its own way. No reason not to use both. 73 de, Ian, NV4C On Mon, Jun 29, 2020 at 7:07 PM Jim Brown wrote: > On 6/29/2020 3:57 PM, Matt Maguire wrote: > > I would suggest that the architecture of the K4 is a significant > departure > > from the K3 series, and I would think that the books treating the K3 > would > > be of limited usefulness in understanding how to get the most out of the > K4. > > Maybe study the manual? Worked fine for me with most ham gear I've > owned, including the K3 and companion products. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nv4c.ian at gmail.com > -- Ian Kahn, NV4C Roswell, GA EM74ua nv4c.ian at gmail.com 10-10 #74624 North Georgia Chapter #2038 PODXS 070 #1962 K3 #281, P3 #688 KAT500 #860, KPA500 #1468 From rick at tavan.com Mon Jun 29 20:39:21 2020 From: rick at tavan.com (Rick Tavan) Date: Mon, 29 Jun 2020 17:39:21 -0700 Subject: [Elecraft] K4 Books In-Reply-To: <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Message-ID: If you're already comfortable with the K3, you'll be comfortable with the K4 in a matter of hours. You "won't need no steenkeeng book." The screen is totally different in layout and appearance but supports many of the functions you've come to understand and (hopefully) love in K3/P3. Most of the nomenclature is the same as is the buttonology. If you're new to the Elecraft family of radios, you might prefer a Cady-style book to the Elecraft manual, although many users (like me) find the Elecraft manuals sufficient, much better than some transceiver user guides out there. I don't recommend an Elecraft newbie spend a lot of time with K3 documentation, from either source, as a head start on the K4. It couldn't hurt and it might assuage the delivery anxiety a bit but IMHO it would be better just to download the K4 manual when it becomes available. Rick N6XI K4 #00012 On Mon, Jun 29, 2020 at 4:21 PM Don Wilhelm wrote: > Tongue planted firmly in cheek -- > What? Study the manual? We are hams and can just push buttons and turn > knobs and see what happens! > > Seriously, I think some hams really do it that way. > > How much more pleasure would they get out of their gear if they took the > time to study the manual. That is NOT a casual perusal paging through > the manual. > That is sitting down in front of the radio with the manual open and > identifying things as well as trying things out with a dummy load when > it involves transmitting. > > 73, > Don W3FPR > > On 6/29/2020 7:06 PM, Jim Brown wrote: > > > > Maybe study the manual? Worked fine for me with most ham gear I've > > owned, including the K3 and companion products. > > > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rtavan at gmail.com > -- -- Rick Tavan Truckee and Saratoga, CA From jasimmons at pinewooddata.com Mon Jun 29 20:45:57 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Mon, 29 Jun 2020 19:45:57 -0500 Subject: [Elecraft] K4 Books In-Reply-To: <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Message-ID: Hence: "RTFM". I have a mug. -de John NI0K Don Wilhelm wrote on 6/29/2020 6:20 PM: > Tongue planted firmly in cheek -- > What? Study the manual?? We are hams and can just push buttons and > turn knobs and see what happens! > > Seriously, I think some hams really do it that way. > > How much more pleasure would they get out of their gear if they took > the time to study the manual.? That is NOT a casual perusal paging > through the manual. > That is sitting down in front of the radio with the manual open and > identifying things as well as trying things out with a dummy load when > it involves transmitting. > > 73, > Don W3FPR > > On 6/29/2020 7:06 PM, Jim Brown wrote: >> >> Maybe study the manual? Worked fine for me with most ham gear I've >> owned, including the K3 and companion products. >> >> 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jasimmons at pinewooddata.com From w4kx at mac.com Mon Jun 29 21:00:55 2020 From: w4kx at mac.com (Tom Doligalski) Date: Mon, 29 Jun 2020 21:00:55 -0400 Subject: [Elecraft] K3 at Field Day Message-ID: I ran my K3 hard this year as 1D in Field Day. What a champ: never even got warm! Maybe a K4 next year? Tom W4KX Sent from my iPad From softblue at windstream.net Mon Jun 29 21:59:14 2020 From: softblue at windstream.net (Dick Dickinson) Date: Mon, 29 Jun 2020 21:59:14 -0400 Subject: [Elecraft] Diversity receive versus QRM eliminators Message-ID: <001801d64e82$0e98fab0$2bcaf010$@windstream.net> This is a topic that interests me. I have a wrinkle to add. Qualifications: I am a generalist rag-chew HF phone operator / listener. I'm not seeking rare DX nor exploring weak signals in general nor a competitive operator. I'm currently running K3(-s) with a DXE NCC-2 and a 2 x 6 remote antenna switch. I also have an MFJ-1026 but have not done A / B testing comparing the 2 units. The 2 x 6 remote antenna switch allows me to select any of 6 for the Main / TX antenna and any of the 5 remaining as the RX / Noise antenna. Now to the wrinkle. Antenna modeling has shown me that Inverted Vee antennas favor Vertical Polarization off the ends and Horizontal Polarization on the broadsides. I have two Inverted Vees up for 40 meters. The apex of each is about 38'. They are a nominal quarter wavelength apart in spacing AND orthogonal to each other. That gives me the opportunity to take some advantage of polarization per direction / selection of antenna. In any event, that's the setup. I don't presently have any great findings to share. At it simplest, I can select one or the other singly to lessen noise bidirectionally. The noise canceling unit isn't necessary for that.just the difference in polarization of the two antennas used singly can be helpful. The orthogonal antennas do give me an additional variable to utilize as far as noise diminishing / signal enhancing. I've not had all this together for too long. I'm hoping the setup with various antennas will prove effective in many circumstances. I believe I have demonstrated that to my general satisfaction. Sometimes I've been able to bring out an otherwise unheard side of a QSO by adjusting. SSB is tricky to gauge Signal to Noise Ratio with signals jumping up and down as well as background noises such at lighting intervening. A visual display such as a spectrum scope helps, especially with overall background noise. People familiar with operating Noise Canceling units may suggest that there is little automatic about them. It often takes some work. If you have a single source noise and an appropriate antenna setup, they can be quite effective. Many think that antennas 'should be' as alike as possible in orientation and phase. Others offer differing viewpoints. I couple of times I have read that an Antenna Noise Canceling unit 'cannot' take out lightning static. In some circumstances I have been able to substantially diminish lightning static from beyond the horizon for a much-improved S/N ratio. It is not easy and far from for sure with any lightning storm but on some occasions, it can be done. Digitization of some aspects of Antenna Noise Canceling is hopefully not too far out in time. Direction determination with stationary (and unswitched) antennas.a great bonus should that happen. As ever, Dick - KA5KKT From wlbaber at bellsouth.net Mon Jun 29 22:05:38 2020 From: wlbaber at bellsouth.net (WILLIE BABER) Date: Tue, 30 Jun 2020 02:05:38 +0000 (UTC) Subject: [Elecraft] KX2 Drift During Field Day In-Reply-To: <30e2f0c0-bd51-46f7-9eb1-d85c2111bcec@www.fastmail.com> References: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> <30e2f0c0-bd51-46f7-9eb1-d85c2111bcec@www.fastmail.com> Message-ID: <2026084950.72405.1593482738996@mail.yahoo.com> 1 hz? My hallicrafters crystal controlled oscillator was rated less than 400 hz an hour drift after warm- up (it will do much better than that after 1 hour of warmup), That was considered very stable in 1962. I still use it in short qsos where I barely hear 10 hz of drift in 5 minutes, after an one hour warmup. How soon we forget! 73, will, wj9b CWops #1085 CWA Advisor levels II and III http://cwops.org/ On Monday, June 29, 2020, 06:21:33 PM MDT, Jay Rutherford wrote: ONE Hertz?? 73 Jay K3BH On Mon, Jun 29, 2020, at 18:35, Ian Kahn, NV4C wrote: > All, > > I have KX2 s/n 2862. I noticed while operating Field Day that, about > every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen > this in their KX2? I will admit it is possible this was just the effect > of RF getting back into the rig, but at 10W, I'm not really sure where > enough would come from to cause an issue. > > Thanks and 73, > > Ian, NV4C > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to wlbaber at bellsouth.net From pvandyke1953 at gmail.com Mon Jun 29 22:05:40 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Mon, 29 Jun 2020 22:05:40 -0400 Subject: [Elecraft] K4 Books In-Reply-To: References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Message-ID: Hey Rick "Rick N6XI" "K4 #00012" Thhpptpt. Paul - KB9AVO on the early list for the K4 also From donwilh at embarqmail.com Mon Jun 29 22:09:31 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 29 Jun 2020 22:09:31 -0400 Subject: [Elecraft] K4 Books In-Reply-To: References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Message-ID: Skip, Fred addressed 3 different learning methods in his books. First was those who learn by reading (I am one of those), 2nd is those who learn from examples (expanded reading) and thirdly those who learn from hands-on exercises. Fred addressed all 3 in his books. He did comment that there was nothing in his books that was not in the Elecraft manual, but his approach to presenting the material was different. That is why his books exceed 200 pages while the Elecraft manuals are usually in the vicinity of 100 pages. On 6/29/2020 7:37 PM, Fred Jensen wrote: > I found that the value in Fred's book was due to approach.? The K3 > manual is good ... very good ... and like most all user manuals, takes a > "control approach" -- "The SHIFT and WIDTH controls adjust the center > frequency and the width of the DSP filtering."? Fred's book explains > what the DSP filtering is, the effects the controls have on it, and how > it affects operation of the radio. > > I'm not suggesting the "control approach" is wrong or bad, user manuals > need to explain what each control does.? It's just a different approach > to the subject.? I find both very useful. > > From what little I know about the K4, I can't imagine that either a K3 > manual or Fred's K3 book would be of much value for a new K4 owner. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/29/2020 4:20 PM, Don Wilhelm wrote: >> Tongue planted firmly in cheek -- >> What? Study the manual?? We are hams and can just push buttons and >> turn knobs and see what happens! >> >> Seriously, I think some hams really do it that way. >> >> How much more pleasure would they get out of their gear if they took >> the time to study the manual.? That is NOT a casual perusal paging >> through the manual. >> That is sitting down in front of the radio with the manual open and >> identifying things as well as trying things out with a dummy load when >> it involves transmitting. >> >> 73, >> Don W3FPR >> >> On 6/29/2020 7:06 PM, Jim Brown wrote: >>> >>> Maybe study the manual? Worked fine for me with most ham gear I've >>> owned, including the K3 and companion products. >>> From aj4tf at arrl.net Mon Jun 29 22:21:43 2020 From: aj4tf at arrl.net (aj4tf) Date: Mon, 29 Jun 2020 19:21:43 -0700 (MST) Subject: [Elecraft] Field Day @ W4UA Message-ID: <1593483703372-0.post@n2.nabble.com> Once again, W4UA (High Point [NC] Amateur Radio Club) was all Elecraft; two K2/100s and one K3S/100. OK, we did have an FT-991 there for a little while, and it made some 10m contacts in place of one of the K2s, but the bulk of the work was done by the E's. No radio issues, just some really interesting conditions and lots of stations QRMing each other. We did a little better than last year, but who's counting, since it's not a contest? (yeah, right). Thanks Wayne and Eric, and all of your team, for some really great radios. 73, David AJ4TF K3S 10669, K2 7006, K2 7841 https://www.facebook.com/groups/1115159045192839 -- Sent from: http://elecraft.365791.n2.nabble.com/ From jim at audiosystemsgroup.com Mon Jun 29 22:27:08 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 29 Jun 2020 19:27:08 -0700 Subject: [Elecraft] K4 Books In-Reply-To: References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Message-ID: <9b82ea54-1f38-5dff-bc99-93d23f821692@audiosystemsgroup.com> On 6/29/2020 7:09 PM, Don Wilhelm wrote: > Fred addressed 3 different learning methods in his books.? First was > those who learn by reading (I am one of those), 2nd is those who learn > from examples (expanded reading) and thirdly those who learn from > hands-on exercises.? Fred addressed all 3 in his books. > He did comment that there was nothing in his books that was not in the > Elecraft manual, but his approach to presenting the material was > different.? That is why his books exceed 200 pages while the Elecraft > manuals are usually in the vicinity of 100 pages. After college, I taught at DeVry in Chicago for five years. Good teachers, like good writers, learn to "tell the story" in a manner that the targeted audience can understand. I found that I could usually tell the story in a manner that 80-90% of the class could follow, but there were always a few guys whose mind worked differently enough that they didn't. When that happened, I had to first probe to figure out what they didn't "get," or what background knowledge was missing, and build the story in a different form. I still give talks regularly at ham events, and spend a LOT of time preparing slides, then spend a lot of time rehearsing so that I fit into the allotted time. And I ask for a LOT of time for one very important reason. I can explain most things to folks well-educated in the topic at hand (whether formally or informally) in 5-10 minutes, but if I want most of the room to get it, I've got to take my time, build that story for the guys with the least background. And for most topics I present, that's an hour or so. I also like to use graphs, simple block diagrams, and photos a lot. I think that helps give the listener/reader more to help them understand. 73, Jim K9YC From frantz at pwpconsult.com Mon Jun 29 23:19:55 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Mon, 29 Jun 2020 23:19:55 -0400 Subject: [Elecraft] K4 on Digital Modes In-Reply-To: <430293F2-6608-47BB-A251-840CFA4AEEC8@ko8v.net> Message-ID: RUMlogNG, a Mac logging program will allow a kind of conversional mode in its contest form. You can click to send and type whatever you want. It does handle macros nicely, which is needed for contesting. I suspect it breaks down long messages into shorter commands. I use if frequently for CW and RTTY contesting, and it works well. I rarely use the conversational mode in contesting, and manually switching between transmit and receive is a pain. 73 Bill AE6JV On 6/28/20 at 10:07 PM, jd at ko8v.net (Joe DeVincentis) wrote: >I am aware of the KY command, but it is limited to 24 >characters per command. And as far as I can tell no system >supports it in a conversational mode (e.g. fldigi, mmtty, etc) >in the same way an external modem is supported. > >Joe, KO8V > >>On Jun 28, 2020, at 20:21, Bill Frantz wrote: >> >>?The K3 will accept a command through the CAT interface to send CW/RTTY/PSK. The K4 should as well. >> ----------------------------------------------------------------------- Bill Frantz | Security is like Government | Periwinkle (408)348-7900 | services. The market doesn't | 150 Rivermead Rd #235 www.pwpconsult.com | want to pay for them. | Peterborough, NH 03458 From wunder at wunderwood.org Tue Jun 30 01:41:45 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Mon, 29 Jun 2020 22:41:45 -0700 Subject: [Elecraft] KX2 Drift During Field Day In-Reply-To: <30e2f0c0-bd51-46f7-9eb1-d85c2111bcec@www.fastmail.com> References: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> <30e2f0c0-bd51-46f7-9eb1-d85c2111bcec@www.fastmail.com> Message-ID: <43324F0A-EB7E-4429-9D80-88E12FA33C99@wunderwood.org> That was my thought, too. Dang, that is excellent frequency stability! The spec is "+/- 1 ppm typical at 25 C after 5-minute warm-up." wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Jun 29, 2020, at 5:20 PM, Jay Rutherford wrote: > > ONE Hertz?? > > 73 > Jay K3BH > > On Mon, Jun 29, 2020, at 18:35, Ian Kahn, NV4C wrote: >> All, >> >> I have KX2 s/n 2862. I noticed while operating Field Day that, about >> every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen >> this in their KX2? I will admit it is possible this was just the effect >> of RF getting back into the rig, but at 10W, I'm not really sure where >> enough would come from to cause an issue. >> >> Thanks and 73, >> >> Ian, NV4C >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wunder at wunderwood.org From richard.corfield at gmail.com Tue Jun 30 06:14:10 2020 From: richard.corfield at gmail.com (Richard Corfield) Date: Tue, 30 Jun 2020 11:14:10 +0100 Subject: [Elecraft] KX2 Drift During Field Day In-Reply-To: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> References: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> Message-ID: Are you talking about the output frequency as measured on another device? Or the numeric readout on the radio's own display? I've seen shifts in some situations on 2m, which I think was RF getting into it. If you turn off Mic Up/Down button control maybe it will help there. I've had issues where I knocked the dial before. Oops. - Richard On Mon, 29 Jun 2020 at 23:37, Ian Kahn, NV4C wrote: > All, > > I have KX2 s/n 2862. I noticed while operating Field Day that, about > every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen > this in their KX2? I will admit it is possible this was just the effect > of RF getting back into the rig, but at 10W, I'm not really sure where > enough would come from to cause an issue. > > Thanks and 73, > > Ian, NV4C > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to richard.corfield at gmail.com > From nv4c.ian at gmail.com Tue Jun 30 09:15:39 2020 From: nv4c.ian at gmail.com (Ian Kahn) Date: Tue, 30 Jun 2020 09:15:39 -0400 Subject: [Elecraft] KX2 Drift During Field Day In-Reply-To: References: <2a13e673-0481-be81-8aef-174979910f38@gmail.com> Message-ID: Richard, Drift was seen on the KX2 digital display, and indicated by concomitant very mild audio distortion from being slightly off frequency. I am perfectly willing to accept that I may have just been getting a small bit of RFI, but was just curious if anyone else has seen this behavior before. Thanks and 73, Ian, NV4C On Tue, Jun 30, 2020, 6:14 AM Richard Corfield wrote: > Are you talking about the output frequency as measured on another device? > Or the numeric readout on the radio's own display? > > I've seen shifts in some situations on 2m, which I think was RF getting > into it. If you turn off Mic Up/Down button control maybe it will help > there. > > I've had issues where I knocked the dial before. Oops. > > - Richard > > > On Mon, 29 Jun 2020 at 23:37, Ian Kahn, NV4C wrote: > >> All, >> >> I have KX2 s/n 2862. I noticed while operating Field Day that, about >> every 15 minutes, it would drift down 1 Hz. Has anyone else ever seen >> this in their KX2? I will admit it is possible this was just the effect >> of RF getting back into the rig, but at 10W, I'm not really sure where >> enough would come from to cause an issue. >> >> Thanks and 73, >> >> Ian, NV4C >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to richard.corfield at gmail.com >> > From w3tb.ted at gmail.com Tue Jun 30 11:29:36 2020 From: w3tb.ted at gmail.com (Ted Edwards W3TB) Date: Tue, 30 Jun 2020 10:29:36 -0500 Subject: [Elecraft] K3 at Field Day In-Reply-To: References: Message-ID: I did, too. Love my K3! 1039 QSOs and all on CW. Letting my microphone get dusty... On Mon, Jun 29, 2020 at 8:02 PM Tom Doligalski via Elecraft < elecraft at mailman.qth.net> wrote: > I ran my K3 hard this year as 1D in Field Day. What a champ: never even > got warm! > > Maybe a K4 next year? > > Tom W4KX > > Sent from my iPad > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w3tb.ted at gmail.com > -- 73 de Ted Edwards, W3TB and G?PWW and thinking about operating CW: "Do today what others won't, so you can do tomorrow what others can't." From va3mw at portcredit.net Tue Jun 30 12:59:49 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 30 Jun 2020 12:59:49 -0400 Subject: [Elecraft] kx2 SSB always in TX Message-ID: Hi All I have had a kx2 since they first came out and I have chased this problem since day 1. But, since I never use it on SSB, I have never worried about it. s/n 337 Everything I plug in the MH3 Mic, the radio goes into TX. I have the latest firmware on it. If Menu:MIC BTN is set to OFF, it does not TX with the PTT button on the MIC If Menu:MIC BTN is set to PTT, the radios into TX as soon as you plug the MIC in If Menu:MIC BTN is set to Ptt UP.dn, the radio goes into TX as soon as you plug the MIC in VOX is off Next test was to try the internal MIC. My testing is in LSB on 40M. Touching XMIT puts the radio into TX, but the only way out of TX is to hit the ATU button. Hitting XMIT again does nothing. Unfortunately, that doesn't work either. I was headed out on a Canoe trip tomorrow and was hoping to use SSB as a mode while I was in the Great White North. Any thoughts of the next steps to solve this in a few hours? Mike va3mw From va3mw at portcredit.net Tue Jun 30 13:13:02 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 30 Jun 2020 13:13:02 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: References: Message-ID: Update on this. If you are in the Menu, the XMIT does not work. If out of the Menu, it works as expected as does Vox. However, the External Mic problem still exists. I did Ohm out the MH3 PTT line and it isn't shorted at all, so the Mic is not the issue. Mike va3mw On Tue, Jun 30, 2020 at 12:59 PM Michael Walker wrote: > Hi All > > I have had a kx2 since they first came out and I have chased this problem > since day 1. But, since I never use it on SSB, I have never worried about > it. s/n 337 > > Everything I plug in the MH3 Mic, the radio goes into TX. I have the > latest firmware on it. > > If Menu:MIC BTN is set to OFF, it does not TX with the PTT button on the > MIC > If Menu:MIC BTN is set to PTT, the radios into TX as soon as you plug the > MIC in > If Menu:MIC BTN is set to Ptt UP.dn, the radio goes into TX as soon as you > plug the MIC in > > VOX is off > > Next test was to try the internal MIC. > > My testing is in LSB on 40M. > > Touching XMIT puts the radio into TX, but the only way out of TX is to hit > the ATU button. Hitting XMIT again does nothing. Unfortunately, that > doesn't work either. > > I was headed out on a Canoe trip tomorrow and was hoping to use SSB as a > mode while I was in the Great White North. > > Any thoughts of the next steps to solve this in a few hours? > > Mike va3mw > > From donwilh at embarqmail.com Tue Jun 30 13:18:01 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 13:18:01 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: References: Message-ID: <62b25b10-3d08-0ee9-2160-88a0b7ead87e@embarqmail.com> Mike, Do you have a normal stereo plug available? - or a stereo audio cable with nothing on the far end? If so, plug that in and see if the same thing happens - make certain it is in all the way. If not, the MH3 has a problem. If it still goes into transmit, the KX2 has a problem. 73, Don W3FPR On 6/30/2020 12:59 PM, Michael Walker wrote: > Hi All > > I have had a kx2 since they first came out and I have chased this problem > since day 1. But, since I never use it on SSB, I have never worried about > it. s/n 337 > > Everything I plug in the MH3 Mic, the radio goes into TX. I have the > latest firmware on it. > > If Menu:MIC BTN is set to OFF, it does not TX with the PTT button on the MIC > If Menu:MIC BTN is set to PTT, the radios into TX as soon as you plug the > MIC in > If Menu:MIC BTN is set to Ptt UP.dn, the radio goes into TX as soon as you > plug the MIC in > > VOX is off > From va3mw at portcredit.net Tue Jun 30 13:27:13 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 30 Jun 2020 13:27:13 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: <62b25b10-3d08-0ee9-2160-88a0b7ead87e@embarqmail.com> References: <62b25b10-3d08-0ee9-2160-88a0b7ead87e@embarqmail.com> Message-ID: Thanks Don Plugging a Stereo (3 conductor) does not cause the radio to go into TX with Menu:MIC BTN set to Ptt. Looking like a bad MH3. I did ohm out the MIC between ground and the PTT line and it did show open. I would be expecting a short. Mike va3mw On Tue, Jun 30, 2020 at 1:18 PM Don Wilhelm wrote: > Mike, > > Do you have a normal stereo plug available? - or a stereo audio cable > with nothing on the far end? If so, plug that in and see if the same > thing happens - make certain it is in all the way. If not, the MH3 has > a problem. > If it still goes into transmit, the KX2 has a problem. > > 73, > Don W3FPR > > On 6/30/2020 12:59 PM, Michael Walker wrote: > > Hi All > > > > I have had a kx2 since they first came out and I have chased this problem > > since day 1. But, since I never use it on SSB, I have never worried > about > > it. s/n 337 > > > > Everything I plug in the MH3 Mic, the radio goes into TX. I have the > > latest firmware on it. > > > > If Menu:MIC BTN is set to OFF, it does not TX with the PTT button on the > MIC > > If Menu:MIC BTN is set to PTT, the radios into TX as soon as you plug the > > MIC in > > If Menu:MIC BTN is set to Ptt UP.dn, the radio goes into TX as soon as > you > > plug the MIC in > > > > VOX is off > > > From donwilh at embarqmail.com Tue Jun 30 14:56:31 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 14:56:31 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: References: <62b25b10-3d08-0ee9-2160-88a0b7ead87e@embarqmail.com> Message-ID: <5d3a82aa-8df0-a6c4-5f72-032b91780c54@embarqmail.com> Mike, Did you read the continuity between the 1st and 2nd rings of the MH3 plug? The MH3 PTT connects those two rings (and not the shell). 73, Don W3FPR On 6/30/2020 1:27 PM, Michael Walker wrote: > Thanks Don > > Plugging a Stereo? (3 conductor) does not cause the radio to go into > TX with Menu:MIC BTN set to Ptt. > > Looking like a bad MH3. > > I did ohm out the MIC between ground and the PTT line and it did show > open.? I would be expecting a short. > > Mike va3mw > From va3mw at portcredit.net Tue Jun 30 15:02:17 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 30 Jun 2020 15:02:17 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: <5d3a82aa-8df0-a6c4-5f72-032b91780c54@embarqmail.com> References: <62b25b10-3d08-0ee9-2160-88a0b7ead87e@embarqmail.com> <5d3a82aa-8df0-a6c4-5f72-032b91780c54@embarqmail.com> Message-ID: Ops, missed that. I used shield ground, not logic ground. However, when I tested Ring 1 to Ring 2, it is open and then shorts when you push the PTT button. This seems to be working as designed. I did confirm that mic is plugged in all the way and did a close visual look at it to make sure. Mike va3mw On Tue, Jun 30, 2020 at 2:56 PM Don Wilhelm wrote: > Mike, > > Did you read the continuity between the 1st and 2nd rings of the MH3 plug? > The MH3 PTT connects those two rings (and not the shell). > > 73, > Don W3FPR > > On 6/30/2020 1:27 PM, Michael Walker wrote: > > Thanks Don > > > > Plugging a Stereo (3 conductor) does not cause the radio to go into > > TX with Menu:MIC BTN set to Ptt. > > > > Looking like a bad MH3. > > > > I did ohm out the MIC between ground and the PTT line and it did show > > open. I would be expecting a short. > > > > Mike va3mw > > > > From nr4c at widomaker.com Tue Jun 30 16:17:09 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 30 Jun 2020 16:17:09 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: References: Message-ID: <8859CF4C-70B7-4102-B475-2DE44F9ADC02@widomaker.com> What mic are you using? Is anything else plugged into the radio? Sent from my iPhone ...nr4c. bill > On Jun 30, 2020, at 1:03 PM, Michael Walker wrote: > > ?Hi All > > I have had a kx2 since they first came out and I have chased this problem > since day 1. But, since I never use it on SSB, I have never worried about > it. s/n 337 > > Everything I plug in the MH3 Mic, the radio goes into TX. I have the > latest firmware on it. > > If Menu:MIC BTN is set to OFF, it does not TX with the PTT button on the MIC > If Menu:MIC BTN is set to PTT, the radios into TX as soon as you plug the > MIC in > If Menu:MIC BTN is set to Ptt UP.dn, the radio goes into TX as soon as you > plug the MIC in > > VOX is off > > Next test was to try the internal MIC. > > My testing is in LSB on 40M. > > Touching XMIT puts the radio into TX, but the only way out of TX is to hit > the ATU button. Hitting XMIT again does nothing. Unfortunately, that > doesn't work either. > > I was headed out on a Canoe trip tomorrow and was hoping to use SSB as a > mode while I was in the Great White North. > > Any thoughts of the next steps to solve this in a few hours? > > Mike va3mw > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From donwilh at embarqmail.com Tue Jun 30 16:45:17 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 16:45:17 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: References: <62b25b10-3d08-0ee9-2160-88a0b7ead87e@embarqmail.com> <5d3a82aa-8df0-a6c4-5f72-032b91780c54@embarqmail.com> Message-ID: <9adadfb7-8982-b870-ea27-a67d509a5785@embarqmail.com> Mike, Solution unknown - either you have a bad mic plug on that MH3, or there is a problem with your KX2 mic jack. Do you know anyone else who has a KX2 or KX3 that could try your microphone? 73, Don W3FPR On 6/30/2020 3:02 PM, Michael Walker wrote: > Ops, missed that.? I used shield ground, not logic ground. > > However, when I tested Ring 1 to Ring 2, it is open and then shorts > when you push the PTT button.? This seems to be working as designed. > > I did confirm that mic is plugged in all the way and did a close > visual look at it to make sure. > > From va3mw at portcredit.net Tue Jun 30 16:48:46 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 30 Jun 2020 16:48:46 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: <9adadfb7-8982-b870-ea27-a67d509a5785@embarqmail.com> References: <62b25b10-3d08-0ee9-2160-88a0b7ead87e@embarqmail.com> <5d3a82aa-8df0-a6c4-5f72-032b91780c54@embarqmail.com> <9adadfb7-8982-b870-ea27-a67d509a5785@embarqmail.com> Message-ID: Hi No, nothing else plugged into the radio. As for a 2nd Mic, not at this time and I am not at home near my workbench which has lots of bits to try things. If I have time tonight, I will open up the Mic and do some more tracing. I think we have gone as far as we can go at this point given the tools I have. I'll do more lab work on it when I get back home next week. I got the internal mic to work as it should, so I can make do with that for the time being. thanks for your help. 73, Mike va3mw On Tue, Jun 30, 2020 at 4:45 PM Don Wilhelm wrote: > Mike, > > Solution unknown - either you have a bad mic plug on that MH3, or there > is a problem with your KX2 mic jack. > Do you know anyone else who has a KX2 or KX3 that could try your > microphone? > > 73, > Don W3FPR > > On 6/30/2020 3:02 PM, Michael Walker wrote: > > Ops, missed that. I used shield ground, not logic ground. > > > > However, when I tested Ring 1 to Ring 2, it is open and then shorts > > when you push the PTT button. This seems to be working as designed. > > > > I did confirm that mic is plugged in all the way and did a close > > visual look at it to make sure. > > > > > > From donwilh at embarqmail.com Tue Jun 30 17:09:42 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 17:09:42 -0400 Subject: [Elecraft] kx2 SSB always in TX In-Reply-To: References: <62b25b10-3d08-0ee9-2160-88a0b7ead87e@embarqmail.com> <5d3a82aa-8df0-a6c4-5f72-032b91780c54@embarqmail.com> <9adadfb7-8982-b870-ea27-a67d509a5785@embarqmail.com> Message-ID: <8aa0c1b2-3e55-6e4e-6ad1-29e1125644b1@embarqmail.com> Mike, I am wondering if the shaft (sleeve) on the mic plug is just a bit too long - try backing the plug out a tiny bit at a time (thickness of heavy paper) to see if that takes care of it. That is all I can think of.? I suggest you contact support at elecraft.com for additional suggestions. The most positive test would be for you to try that same mic in a different KX3 or KX3.? If it works OK, then you will know that you have a problem with your mic jack in the KX2 - even though it behaved with the stereo plug. I would not suggest taking the mic apart, I suspect from your ohmmeter measurement that the mic is OK and the problem is with the plug. 73, Don W3FPR On 6/30/2020 4:48 PM, Michael Walker wrote: > Hi > > No, nothing else plugged into the radio. > > As for a 2nd Mic, not at this time and I am not at home near my > workbench which has lots of bits to try things.? If I have time > tonight, I will open up the Mic and do some more tracing. > > I think we have gone as far as we can go at this point given the tools > I have.? I'll do more lab work on it when I get back home next week. > > I got the internal mic to work as it should, so I can make do with > that for the time being. > > thanks for your help. > > 73, Mike va3mw > > > On Tue, Jun 30, 2020 at 4:45 PM Don Wilhelm > wrote: > > Mike, > > Solution unknown - either you have a bad mic plug on that MH3, or > there > is a problem with your KX2 mic jack. > Do you know anyone else who has a KX2 or KX3 that could try your > microphone? > > 73, > Don W3FPR > > On 6/30/2020 3:02 PM, Michael Walker wrote: > > Ops, missed that.? I used shield ground, not logic ground. > > > > However, when I tested Ring 1 to Ring 2, it is open and then shorts > > when you push the PTT button.? This seems to be working as designed. > > > > I did confirm that mic is plugged in all the way and did a close > > visual look at it to make sure. > > > > > From mikekopacki at gmail.com Tue Jun 30 17:32:38 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Tue, 30 Jun 2020 17:32:38 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <5ea3527e-8677-303d-bcb2-10ea6fb3e901@embarqmail.com> References: <5ea3527e-8677-303d-bcb2-10ea6fb3e901@embarqmail.com> Message-ID: Don... The power supply is an MFJ 13.8V/25A switching power supply. It measures 13.63V at the terminals. The K2 shows 13.1V in receive mode. During transmit on all bands, the K2 shows 11.3-11.9V, depending on the band. All the power connections appear to be tight. Thanks, Mike NJ2OM > On Jun 29, 2020, at 12:45 PM, Don Wilhelm wrote: > > ?Mike, > > It is not reasonable to expect a normal wattmeter to have greater than a 10% accuracy. > Consider that the spec for a Bird wattmeter is only 5% right after calibration. > Digital wattmeters can be much more accurate, such as the LP-100 from Telepostinc, but they are calibrated to NIST traceable standards. > > 73, > Don W3FPR > >> On 6/29/2020 8:50 AM, Mike Kopacki wrote: >> Okay. I will go back to your first reply and run through the items you suggested. >> >> Does the fact that on 40 and 80 meters, when I set the requested power to 100w, I actually see a little more - like 103w - but the power drops off on other bands - is that a clue to anything? >> >> Thanks, >> Mike NJ2OM >> >>>> On Jun 28, 2020, at 10:50 PM, Don Wilhelm wrote: >>> >>> ?Mike, >>> >>> No, the KPA100 wattmeter will display the actual power being produced if it is well calibrated. >>> That is not necessarily the same as the requested power, although with a properly working KPA100 and a calibrated KPA100 wattmeter, the reading should be the same. >>> >>> 73, >>> Don W3FPR >>> >>>> On 6/28/2020 9:41 PM, Mike Kopacki wrote: >>>> I can run through some of the items you suggest. But I don?t have an external wattmeter that can measure 100 watts. I do have a QRP wattmeter. >>>> >>>> I will start tomorrow to try and work through the question. >>>> >>>> But to be completely accurate...you are saying that the KPA100 wattmeter (which is what I see when pressing TUNE and DISPLAY together), should read the same as the REQUESTED power (which is what the power knob sets)? >>>> >>>> Thanks, >>>> Mike NJ2OM >>>> >>>>>> On Jun 28, 2020, at 8:58 PM, Eric Norris wrote: >>>>> ? >>>>> Congratulations, Mike! Please let us ALL know how it goes, as we of the K2 clan learn something with every post. >>>>> >>>>> 73 Eric WD6DBM >>>>> >>>>>> On Sun, Jun 28, 2020, 2:12 PM Mike Kopacki > wrote: >>>>> Well, that gives me something to do! I?ll let you know how it goes. >>>>> >>>>> Thanks, >>>>> Mike NJ2OM >>>>> >>>>> > On Jun 28, 2020, at 4:41 PM, Don Wilhelm >>>>> > wrote: >>>>> > >>>>> > ?Mike, >>>>> > >>>>> > Congratulations on finishing the K2/100. >>>>> > >>>>> > On the power output variation, that is not normal. >>>>> > First check the voltage delivered to the K2 while in transmit. >>>>> > You should do that by tapping DISPLAY and scrolling to the >>>>> voltage display. Your power source should provide at least 13.8 >>>>> volts, but higher (up to 15 volts) is better. If the voltage >>>>> shown by the K2 display during transmit is less than 12.6, make >>>>> certain all power cable connections are tight. >>>>> > >>>>> > If the power supply voltage is not the problem, then remove the >>>>> KPA100 from the base K2 and realign the bandpass filters. >>>>> Connect a dummy load to the base K2 BNC ANT jack. After that, >>>>> check the maximum power from the base K2 - you should have at >>>>> least 10 watts on each band. Record the power for each band. >>>>> > >>>>> > Using a dummy load takes away any question about your >>>>> antennas. Always check into a dummy load - with an in-line >>>>> wattmeter if necessary. >>>>> > >>>>> > The other possibility is that you have a problem in the Low >>>>> Pass Filter in the KPA100. To check for that, re-install the >>>>> KPA100, but power the base K2 from the coaxial power jack (no >>>>> power to the KPA100 - connect the dummy load to the SO2339 jack >>>>> on the KPA100. >>>>> > Again check the maximum power on each band from the base K2. >>>>> It should be no more than 5% less than you found with the base K2 >>>>> only. >>>>> > If there is a substantial difference in power, then check the >>>>> KPA100 Low Pass Filter - particularly checking the number of >>>>> turns on the toroids. >>>>> > >>>>> > 73, >>>>> > Don W3FPR >>>>> > >>>>> > >>>>> >> On 6/28/2020 4:04 PM, NJMike wrote: >>>>> >> I did notice a variation on the power output on different bands: >>>>> >> 80m - 100w >>>>> >> 40m - 100w >>>>> >> 20m - 80w >>>>> >> 15m - 50w >>>>> >> 10m - 30w >>>>> >> SWR was never above 1.3-1. >>>>> >> Does that sound normal? >>>>> ______________________________________________________________ >>>>> Elecraft mailing list >>>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>>> Help: http://mailman.qth.net/mmfaq.htm >>>>> Post: mailto:Elecraft at mailman.qth.net >>>>> >>>>> >>>>> This list hosted by: http://www.qsl.net >>>>> Please help support this email list: http://www.qsl.net/donate.html >>>>> Message delivered to norrislawfirm2 at gmail.com >>>>> > From ghyoungman at gmail.com Tue Jun 30 17:39:22 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Tue, 30 Jun 2020 17:39:22 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: References: <5ea3527e-8677-303d-bcb2-10ea6fb3e901@embarqmail.com> Message-ID: <917535DA-3261-40B3-AACD-FB5B3B7C074E@gmail.com> The connections may be tight, but how many are there? Are you running straight from the power supply to the radio without any intervening junction points, Rig Runners, etc.? Grant NQ5T > On Jun 30, 2020, at 5:32 PM, Mike Kopacki wrote: > > Don... > > The power supply is an MFJ 13.8V/25A switching power supply. It measures 13.63V at the terminals. > > The K2 shows 13.1V in receive mode. > > During transmit on all bands, the K2 shows 11.3-11.9V, depending on the band. > > All the power connections appear to be tight. > From k9yeq at live.com Tue Jun 30 18:00:03 2020 From: k9yeq at live.com (Bill Johnson) Date: Tue, 30 Jun 2020 22:00:03 +0000 Subject: [Elecraft] K4 Books In-Reply-To: References: <99405b79-acb5-8d34-cc3a-1ffee76284a4@gmail.com> <9d533d47-cc60-d8b6-df56-5d28416c653b@audiosystemsgroup.com> <2eaff124-efb5-16f7-eb32-ab20766a8995@embarqmail.com> Message-ID: I solved my issues with understanding Elecraft radios, I prefer all thee methods of learning to fully know the ins and outs. What assists me most after reading all pertinent parts to my use, is to search a downloaded PDF manual to find what I have forgotten and need to refresh my memory. To me I don't find more books helpful, just the manual and use and quick searches. Oh, and I save the current settings frequently in case I really screw up. Before I restore, I use the issue as a learning tool. 73, Bill K9YEQ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Don Wilhelm Sent: Monday, June 29, 2020 9:10 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] K4 Books Skip, Fred addressed 3 different learning methods in his books. First was those who learn by reading (I am one of those), 2nd is those who learn from examples (expanded reading) and thirdly those who learn from hands-on exercises. Fred addressed all 3 in his books. He did comment that there was nothing in his books that was not in the Elecraft manual, but his approach to presenting the material was different. That is why his books exceed 200 pages while the Elecraft manuals are usually in the vicinity of 100 pages. On 6/29/2020 7:37 PM, Fred Jensen wrote: > I found that the value in Fred's book was due to approach.? The K3 > manual is good ... very good ... and like most all user manuals, takes > a "control approach" -- "The SHIFT and WIDTH controls adjust the > center frequency and the width of the DSP filtering."? Fred's book > explains what the DSP filtering is, the effects the controls have on > it, and how it affects operation of the radio. > > I'm not suggesting the "control approach" is wrong or bad, user > manuals need to explain what each control does.? It's just a different > approach to the subject.? I find both very useful. > > From what little I know about the K4, I can't imagine that either a > K3 manual or Fred's K3 book would be of much value for a new K4 owner. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 6/29/2020 4:20 PM, Don Wilhelm wrote: >> Tongue planted firmly in cheek -- >> What? Study the manual?? We are hams and can just push buttons and >> turn knobs and see what happens! >> >> Seriously, I think some hams really do it that way. >> >> How much more pleasure would they get out of their gear if they took >> the time to study the manual.? That is NOT a casual perusal paging >> through the manual. >> That is sitting down in front of the radio with the manual open and >> identifying things as well as trying things out with a dummy load >> when it involves transmitting. >> >> 73, >> Don W3FPR >> >> On 6/29/2020 7:06 PM, Jim Brown wrote: >>> >>> Maybe study the manual? Worked fine for me with most ham gear I've >>> owned, including the K3 and companion products. >>> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k9yeq at live.com From donwilh at embarqmail.com Tue Jun 30 18:01:28 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 18:01:28 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: References: <5ea3527e-8677-303d-bcb2-10ea6fb3e901@embarqmail.com> Message-ID: Mike, You should have only 0.3 volts drop IN the K2 itself, so given your display of 13.1 volts on the K2, that says you have a substantial voltage drop in the power cable. Is it wired directly to the power supply?? Are all the connections tight?? Is the APP assembly at the K2 correct?? Look at the end of the connector - do you see only the contact blade? or can you see the end of the spring finger under the contact blade visible?? If the spring finger is visible, the contact blades have not been pushed in far enough - apply pressure to the back to seat the connector. Make the same visual check on the APP connector mounted in the KPA100.? If it needs correction, you will have to get inside the KPA100 to correct it. 73, Don W3FPR On 6/30/2020 5:32 PM, Mike Kopacki wrote: > Don... > > The power supply is an MFJ 13.8V/25A switching power supply. It measures 13.63V at the terminals. > > The K2 shows 13.1V in receive mode. > > During transmit on all bands, the K2 shows 11.3-11.9V, depending on the band. > > All the power connections appear to be tight. > > Thanks, > Mike NJ2OM > > From mikekopacki at gmail.com Tue Jun 30 18:05:49 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Tue, 30 Jun 2020 18:05:49 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <917535DA-3261-40B3-AACD-FB5B3B7C074E@gmail.com> References: <5ea3527e-8677-303d-bcb2-10ea6fb3e901@embarqmail.com> , <917535DA-3261-40B3-AACD-FB5B3B7C074E@gmail.com> Message-ID: <126D718C-FF5C-4C34-AE51-127DDC863F6E@hxcore.ol> From mikekopacki at gmail.com Tue Jun 30 18:21:58 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Tue, 30 Jun 2020 18:21:58 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: References: <5ea3527e-8677-303d-bcb2-10ea6fb3e901@embarqmail.com> , Message-ID: From donwilh at embarqmail.com Tue Jun 30 18:55:50 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 18:55:50 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: References: <5ea3527e-8677-303d-bcb2-10ea6fb3e901@embarqmail.com> Message-ID: <424e929c-1ce5-328d-c973-991939113367@embarqmail.com> Mike, The red and black assembly is an Anderson Power Pole connector - commonly called APP. For the small receive current drawn, the voltage drop in the wire and connectors should be close to zero, so the 0.2 volts is significant for #12 wire unless there is something not properly tightened on the connectors.? The drop will be more substantial with the increased current during transmit at 100 watts. Banana plugs and jacks can be used to carry a heavy current, but some of the ones I have seen have a poor contact method of fastening the wire to the banana plugs - properly installed wires on banana plugs are good for up to 30 to 50 amps.? Is there any way you can connect ring terminals onto those power supply terminals?? Like removing the outer nuts from the terminals - if so then switch to the ring terminals. 73, Don W3FPR On 6/30/2020 6:21 PM, Mike Kopacki wrote: > > Don, don?t know what you mean by the APP assembly. > > I can only see one metal part on the inside of the red and black > connectors that plug into the K2.? I assume that is the ?contact > blade??? I see nothing else on the inside. > > But here is a possible problem, that I will throw out, knowing full > well that some will think I am not very smart?..I had to buy banana > plugs to make the power cable, which is part of the KPA-100 assembly > instructions. When I received them from MFJ, model MFJ-7713, it was a > solderless type that I had never seen before.? I talked to three > people at MFJ, none could explain how the wire attached to the plug.? > The third guy hung up on me. > > So I connected the wire to the plug the only way I could see, but the > configuration of the plug still eludes me. > > The P/S output is 13.6V.? I?m seeing 13.1V at the K2.? If the normal > drop is .3V, it should read 13.3V at the K2.? Is the difference of .2V > ?substantial?? > > Mike NJ2OM > > Sent from Mail for > Windows 10 > > *From: *Don Wilhelm > *Sent: *Tuesday, June 30, 2020 6:01 PM > *To: *Mike Kopacki > *Cc: *elecraft at mailman qth. net > *Subject: *Re: [Elecraft] K2 K2/100 post FD review > > Mike, > > You should have only 0.3 volts drop IN the K2 itself, so given your > > display of 13.1 volts on the K2, that says you have a substantial > > voltage drop in the power cable. > > Is it wired directly to the power supply? Are all the connections > > tight?? Is the APP assembly at the K2 correct?? Look at the end of the > > connector - do you see only the contact blade? or can you see the end of > > the spring finger under the contact blade visible?? If the spring finger > > is visible, the contact blades have not been pushed in far enough - > > apply pressure to the back to seat the connector. > > Make the same visual check on the APP connector mounted in the KPA100. > > If it needs correction, you will have to get inside the KPA100 to > > correct it. > > 73, > > Don W3FPR > > On 6/30/2020 5:32 PM, Mike Kopacki wrote: > > > Don... > > > > > > The power supply is an MFJ 13.8V/25A switching power supply. It > measures 13.63V at the terminals. > > > > > > The K2 shows 13.1V in receive mode. > > > > > > During transmit on all bands, the K2 shows 11.3-11.9V, depending on > the band. > > > > > > All the power connections appear to be tight. > > > > > > Thanks, > > > Mike NJ2OM > > > > > > > From k4to.dave at gmail.com Tue Jun 30 19:31:01 2020 From: k4to.dave at gmail.com (Dave Sublette) Date: Tue, 30 Jun 2020 19:31:01 -0400 Subject: [Elecraft] K3s noise figure spec Message-ID: Does anybody KNOW what the noise figure is for the 50MHz preamp on the K3s? It isn't listed in the specifications. I need to know in order to make system noise figure calculations. My feedline is going to be long (low loss, but long) and I'm trying to determine if I will need a preamp mounted at the antenna. Thanks, Dave, K4TO From mikekopacki at gmail.com Tue Jun 30 20:34:48 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Tue, 30 Jun 2020 20:34:48 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <424e929c-1ce5-328d-c973-991939113367@embarqmail.com> References: <424e929c-1ce5-328d-c973-991939113367@embarqmail.com> Message-ID: <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> I didn?t have ring connectors big enough but I did have spade connectors. I crimped and soldered them but there was no change in the voltage readings during receive and transmit. Is it possible that the power supply is failing? Why, if the voltage drops during transmit to 11.6V, does the radio still put out 100W on 30, 40 and 80 meters? Thanks, Mike NJ2OM > On Jun 30, 2020, at 6:55 PM, Don Wilhelm wrote: > > ?Mike, > > The red and black assembly is an Anderson Power Pole connector - commonly called APP. > > For the small receive current drawn, the voltage drop in the wire and connectors should be close to zero, so the 0.2 volts is significant for #12 wire unless there is something not properly tightened on the connectors. The drop will be more substantial with the increased current during transmit at 100 watts. > > Banana plugs and jacks can be used to carry a heavy current, but some of the ones I have seen have a poor contact method of fastening the wire to the banana plugs - properly installed wires on banana plugs are good for up to 30 to 50 amps. Is there any way you can connect ring terminals onto those power supply terminals? Like removing the outer nuts from the terminals - if so then switch to the ring terminals. > > 73, > Don W3FPR > >> On 6/30/2020 6:21 PM, Mike Kopacki wrote: >> >> Don, don?t know what you mean by the APP assembly. >> >> I can only see one metal part on the inside of the red and black connectors that plug into the K2. I assume that is the ?contact blade?? I see nothing else on the inside. >> >> But here is a possible problem, that I will throw out, knowing full well that some will think I am not very smart?..I had to buy banana plugs to make the power cable, which is part of the KPA-100 assembly instructions. When I received them from MFJ, model MFJ-7713, it was a solderless type that I had never seen before. I talked to three people at MFJ, none could explain how the wire attached to the plug. The third guy hung up on me. >> >> So I connected the wire to the plug the only way I could see, but the configuration of the plug still eludes me. >> >> The P/S output is 13.6V. I?m seeing 13.1V at the K2. If the normal drop is .3V, it should read 13.3V at the K2. Is the difference of .2V ?substantial?? >> >> Mike NJ2OM >> >> Sent from Mail for Windows 10 >> >> *From: *Don Wilhelm >> *Sent: *Tuesday, June 30, 2020 6:01 PM >> *To: *Mike Kopacki >> *Cc: *elecraft at mailman qth. net >> *Subject: *Re: [Elecraft] K2 K2/100 post FD review >> >> Mike, >> >> You should have only 0.3 volts drop IN the K2 itself, so given your >> >> display of 13.1 volts on the K2, that says you have a substantial >> >> voltage drop in the power cable. >> >> Is it wired directly to the power supply? Are all the connections >> >> tight? Is the APP assembly at the K2 correct? Look at the end of the >> >> connector - do you see only the contact blade? or can you see the end of >> >> the spring finger under the contact blade visible? If the spring finger >> >> is visible, the contact blades have not been pushed in far enough - >> >> apply pressure to the back to seat the connector. >> >> Make the same visual check on the APP connector mounted in the KPA100. >> >> If it needs correction, you will have to get inside the KPA100 to >> >> correct it. >> >> 73, >> >> Don W3FPR >> >> On 6/30/2020 5:32 PM, Mike Kopacki wrote: >> >> > Don... >> >> > >> >> > The power supply is an MFJ 13.8V/25A switching power supply. It measures 13.63V at the terminals. >> >> > >> >> > The K2 shows 13.1V in receive mode. >> >> > >> >> > During transmit on all bands, the K2 shows 11.3-11.9V, depending on the band. >> >> > >> >> > All the power connections appear to be tight. >> >> > >> >> > Thanks, >> >> > Mike NJ2OM >> >> > >> >> > >> > From w1sfr.qrp at gmail.com Tue Jun 30 20:36:45 2020 From: w1sfr.qrp at gmail.com (Stephen Roberts) Date: Tue, 30 Jun 2020 20:36:45 -0400 Subject: [Elecraft] Weird sounds coming from my K1...need a qualified exorcist Message-ID: http://w1sfr.com/weird-k1-audio/ Here's what happened: I turned on the radio to get on the air tonight. It made this sound when I turned it on and after it booted up the sound went away. I plugged in the cable to my paddle and it made the sound. It makes the sound when I key the radio. It makes the sound if I activate "tune" on the radio. Steve W1SFR From donwilh at embarqmail.com Tue Jun 30 20:44:42 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 20:44:42 -0400 Subject: [Elecraft] K3s noise figure spec In-Reply-To: References: Message-ID: <9380987c-8484-9e51-da03-fbf30bd56722@embarqmail.com> Dave, I don't know the answer to your question, but if you use a preamp at the antenna, you will not need to use the preamp in the K3S. The preamp at the the antenna will set the noise figure for the system. The preamp at the K3S end of the feedline will have to consider the feedline loss. At 50 MHz the difference (mast preamp vs. receiver preamp) may be of little concern, but at higher frequencies it can be significant. Many VHF operators run with mast mounted preamps with a separate receive feedline to the receiver - often with RG-58 feedline because the feedline loss is not important for mast mounted preamps. 50 MHz is in the middle ground for that consideration. 73, Don W3FPR On 6/30/2020 7:31 PM, Dave Sublette wrote: > Does anybody KNOW what the noise figure is for the 50MHz preamp on the > K3s? It isn't listed in the specifications. > > I need to know in order to make system noise figure calculations. My > feedline is going to be long (low loss, but long) and I'm trying to > determine if I will need a preamp mounted at the antenna. > From w4my at reagan.com Tue Jun 30 20:48:38 2020 From: w4my at reagan.com (Marty) Date: Tue, 30 Jun 2020 20:48:38 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> References: <424e929c-1ce5-328d-c973-991939113367@embarqmail.com> <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> Message-ID: <00BCB633-9559-4D59-8569-A421C336053A@reagan.com> Maybe because as the voltage drops below 12V the PA starts to be ?less pure? on the higher bands and starts sending junk to the band pass filters. The BPF do their job and filter out the junk and what?s left in the passband to go to the wattmeter is less than rated. I?m sure Don could explain it better in electronical terms! ;-) 73 Marty / W4MY > On Jun 30, 2020, at 20:34, Mike Kopacki wrote: > > I didn?t have ring connectors big enough but I did have spade connectors. I crimped and soldered them but there was no change in the voltage readings during receive and transmit. > > Is it possible that the power supply is failing? > > Why, if the voltage drops during transmit to 11.6V, does the radio still put out 100W on 30, 40 and 80 meters? > > Thanks, > Mike NJ2OM > >> On Jun 30, 2020, at 6:55 PM, Don Wilhelm wrote: >> >> ?Mike, >> >> The red and black assembly is an Anderson Power Pole connector - commonly called APP. >> >> For the small receive current drawn, the voltage drop in the wire and connectors should be close to zero, so the 0.2 volts is significant for #12 wire unless there is something not properly tightened on the connectors. The drop will be more substantial with the increased current during transmit at 100 watts. >> >> Banana plugs and jacks can be used to carry a heavy current, but some of the ones I have seen have a poor contact method of fastening the wire to the banana plugs - properly installed wires on banana plugs are good for up to 30 to 50 amps. Is there any way you can connect ring terminals onto those power supply terminals? Like removing the outer nuts from the terminals - if so then switch to the ring terminals. >> >> 73, >> Don W3FPR >> >>> On 6/30/2020 6:21 PM, Mike Kopacki wrote: >>> >>> Don, don?t know what you mean by the APP assembly. >>> >>> I can only see one metal part on the inside of the red and black connectors that plug into the K2. I assume that is the ?contact blade?? I see nothing else on the inside. >>> >>> But here is a possible problem, that I will throw out, knowing full well that some will think I am not very smart?..I had to buy banana plugs to make the power cable, which is part of the KPA-100 assembly instructions. When I received them from MFJ, model MFJ-7713, it was a solderless type that I had never seen before. I talked to three people at MFJ, none could explain how the wire attached to the plug. The third guy hung up on me. >>> >>> So I connected the wire to the plug the only way I could see, but the configuration of the plug still eludes me. >>> >>> The P/S output is 13.6V. I?m seeing 13.1V at the K2. If the normal drop is .3V, it should read 13.3V at the K2. Is the difference of .2V ?substantial?? >>> >>> Mike NJ2OM >>> >>> Sent from Mail for Windows 10 >>> >>> *From: *Don Wilhelm >>> *Sent: *Tuesday, June 30, 2020 6:01 PM >>> *To: *Mike Kopacki >>> *Cc: *elecraft at mailman qth. net >>> *Subject: *Re: [Elecraft] K2 K2/100 post FD review >>> >>> Mike, >>> >>> You should have only 0.3 volts drop IN the K2 itself, so given your >>> >>> display of 13.1 volts on the K2, that says you have a substantial >>> >>> voltage drop in the power cable. >>> >>> Is it wired directly to the power supply? Are all the connections >>> >>> tight? Is the APP assembly at the K2 correct? Look at the end of the >>> >>> connector - do you see only the contact blade? or can you see the end of >>> >>> the spring finger under the contact blade visible? If the spring finger >>> >>> is visible, the contact blades have not been pushed in far enough - >>> >>> apply pressure to the back to seat the connector. >>> >>> Make the same visual check on the APP connector mounted in the KPA100. >>> >>> If it needs correction, you will have to get inside the KPA100 to >>> >>> correct it. >>> >>> 73, >>> >>> Don W3FPR >>> >>>> On 6/30/2020 5:32 PM, Mike Kopacki wrote: >>>> >>>> Don... >>> >>>> >>> >>>> The power supply is an MFJ 13.8V/25A switching power supply. It measures 13.63V at the terminals. >>> >>>> >>> >>>> The K2 shows 13.1V in receive mode. >>> >>>> >>> >>>> During transmit on all bands, the K2 shows 11.3-11.9V, depending on the band. >>> >>>> >>> >>>> All the power connections appear to be tight. >>> >>>> >>> >>>> Thanks, >>> >>>> Mike NJ2OM >>> >>>> >>> >>>> >>> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w4my at reagan.com From donwilh at embarqmail.com Tue Jun 30 20:53:27 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 20:53:27 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> References: <424e929c-1ce5-328d-c973-991939113367@embarqmail.com> <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> Message-ID: <977f6706-a48f-4fd8-86f5-e2b8eba80b7f@embarqmail.com> Mike, The K2 RF gain is higher on 80, 40, and 30 meters.? It takes a bit more drive and current on the higher bands. Have you verified the power output of the base K2 with the KPA100 removed?? That is an important parameter to investigate. After verifying that the base K2 is capable of putting out 10 watts or more with the KPA100 removed, put the KPA100 back in-line and with power only to the base K2 (no connection to the high power voltage), what is the power output of the K2 with KPA100 - this is a test of the low pass filters in the KPA100.? The power output should be about the same. 73, Don W3FPR On 6/30/2020 8:34 PM, Mike Kopacki wrote: > I didn?t have ring connectors big enough but I did have spade connectors. I crimped and soldered them but there was no change in the voltage readings during receive and transmit. > > Is it possible that the power supply is failing? > > Why, if the voltage drops during transmit to 11.6V, does the radio still put out 100W on 30, 40 and 80 meters? > > Thanks, > Mike NJ2OM > > From donwilh at embarqmail.com Tue Jun 30 20:57:34 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 20:57:34 -0400 Subject: [Elecraft] Weird sounds coming from my K1...need a qualified exorcist In-Reply-To: References: Message-ID: Your link resulted in a page not found. So I don't know what sound it made. It may be associated with the sidetone, but I am not certain. 73, Don W3FPR On 6/30/2020 8:36 PM, Stephen Roberts wrote: > http://w1sfr.com/weird-k1-audio/ > > > Here's what happened: > > I turned on the radio to get on the air tonight. > It made this sound when I turned it on and after it booted up the sound went away. > I plugged in the cable to my paddle and it made the sound. > It makes the sound when I key the radio. > It makes the sound if I activate "tune" on the radio. > From infomet at embarqmail.com Tue Jun 30 21:04:52 2020 From: infomet at embarqmail.com (Wilson Lamb) Date: Tue, 30 Jun 2020 21:04:52 -0400 (EDT) Subject: [Elecraft] Voltage Drop Message-ID: <1585645260.16927019.1593565492243.JavaMail.zimbra@embarqmail.com> Are we going to talk about RF getting into DMMs? The DMMs I've used can't be used on tractors or under the hood of cars not even on the battery, because of ignition noise. There's a lot to be said for old school needle meters! WL From donwilh at embarqmail.com Tue Jun 30 21:05:49 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 30 Jun 2020 21:05:49 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> References: <424e929c-1ce5-328d-c973-991939113367@embarqmail.com> <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> Message-ID: <0f70c856-abb5-7821-72e9-ee23f5bb976b@embarqmail.com> Mike, I would expect that 12.6 volts or greater on transmit would give you better power on the higher bands. You do have either a power supply problem or a Power supply to K2/100 cabling problem. Try the base K2 only tests that I posted about. 73, Don W3FPR On 6/30/2020 8:34 PM, Mike Kopacki wrote: > I didn?t have ring connectors big enough but I did have spade connectors. I crimped and soldered them but there was no change in the voltage readings during receive and transmit. > > Is it possible that the power supply is failing? > > Why, if the voltage drops during transmit to 11.6V, does the radio still put out 100W on 30, 40 and 80 meters? > > Thanks, > Mike NJ2OM > >> On Jun 30, 2020, at 6:55 PM, Don Wilhelm wrote: >> >> ?Mike, >> >> The red and black assembly is an Anderson Power Pole connector - commonly called APP. >> >> For the small receive current drawn, the voltage drop in the wire and connectors should be close to zero, so the 0.2 volts is significant for #12 wire unless there is something not properly tightened on the connectors. The drop will be more substantial with the increased current during transmit at 100 watts. >> >> Banana plugs and jacks can be used to carry a heavy current, but some of the ones I have seen have a poor contact method of fastening the wire to the banana plugs - properly installed wires on banana plugs are good for up to 30 to 50 amps. Is there any way you can connect ring terminals onto those power supply terminals? Like removing the outer nuts from the terminals - if so then switch to the ring terminals. >> >> 73, >> Don W3FPR >> >>> On 6/30/2020 6:21 PM, Mike Kopacki wrote: >>> >>> Don, don?t know what you mean by the APP assembly. >>> >>> I can only see one metal part on the inside of the red and black connectors that plug into the K2. I assume that is the ?contact blade?? I see nothing else on the inside. >>> >>> But here is a possible problem, that I will throw out, knowing full well that some will think I am not very smart?..I had to buy banana plugs to make the power cable, which is part of the KPA-100 assembly instructions. When I received them from MFJ, model MFJ-7713, it was a solderless type that I had never seen before. I talked to three people at MFJ, none could explain how the wire attached to the plug. The third guy hung up on me. >>> >>> So I connected the wire to the plug the only way I could see, but the configuration of the plug still eludes me. >>> >>> The P/S output is 13.6V. I?m seeing 13.1V at the K2. If the normal drop is .3V, it should read 13.3V at the K2. Is the difference of .2V ?substantial?? >>> >>> Mike NJ2OM >>> >>> Sent from Mail for Windows 10 >>> >>> *From: *Don Wilhelm >>> *Sent: *Tuesday, June 30, 2020 6:01 PM >>> *To: *Mike Kopacki >>> *Cc: *elecraft at mailman qth. net >>> *Subject: *Re: [Elecraft] K2 K2/100 post FD review >>> >>> Mike, >>> >>> You should have only 0.3 volts drop IN the K2 itself, so given your >>> >>> display of 13.1 volts on the K2, that says you have a substantial >>> >>> voltage drop in the power cable. >>> >>> Is it wired directly to the power supply? Are all the connections >>> >>> tight? Is the APP assembly at the K2 correct? Look at the end of the >>> >>> connector - do you see only the contact blade? or can you see the end of >>> >>> the spring finger under the contact blade visible? If the spring finger >>> >>> is visible, the contact blades have not been pushed in far enough - >>> >>> apply pressure to the back to seat the connector. >>> >>> Make the same visual check on the APP connector mounted in the KPA100. >>> >>> If it needs correction, you will have to get inside the KPA100 to >>> >>> correct it. >>> >>> 73, >>> >>> Don W3FPR >>> >>> On 6/30/2020 5:32 PM, Mike Kopacki wrote: >>> >>>> Don... >>>> The power supply is an MFJ 13.8V/25A switching power supply. It measures 13.63V at the terminals. >>>> The K2 shows 13.1V in receive mode. >>>> During transmit on all bands, the K2 shows 11.3-11.9V, depending on the band. >>>> All the power connections appear to be tight. >>>> Thanks, >>>> Mike NJ2OM From donovanf at starpower.net Tue Jun 30 21:11:17 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Tue, 30 Jun 2020 21:11:17 -0400 (EDT) Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> Message-ID: <1815299290.838698.1593565877960.JavaMail.root@starpower.net> Hi Mike, Your email states: " The P/S output is 13.6V." Did you measure 13.6 volts at the output of your power supply under load when your transmitter is outputting 100 watts? 73 Frank W3LPL ----- Original Message ----- From: "Mike Kopacki" To: donwilh at embarqmail.com Cc: "elecraft at mailman qth. net" Sent: Wednesday, July 1, 2020 12:34:48 AM Subject: Re: [Elecraft] K2 K2/100 post FD review I didn?t have ring connectors big enough but I did have spade connectors. I crimped and soldered them but there was no change in the voltage readings during receive and transmit. Is it possible that the power supply is failing? Why, if the voltage drops during transmit to 11.6V, does the radio still put out 100W on 30, 40 and 80 meters? Thanks, Mike NJ2OM > On Jun 30, 2020, at 6:55 PM, Don Wilhelm wrote: > > Mike, > > The red and black assembly is an Anderson Power Pole connector - commonly called APP. > > For the small receive current drawn, the voltage drop in the wire and connectors should be close to zero, so the 0.2 volts is significant for #12 wire unless there is something not properly tightened on the connectors. The drop will be more substantial with the increased current during transmit at 100 watts. > > Banana plugs and jacks can be used to carry a heavy current, but some of the ones I have seen have a poor contact method of fastening the wire to the banana plugs - properly installed wires on banana plugs are good for up to 30 to 50 amps. Is there any way you can connect ring terminals onto those power supply terminals? Like removing the outer nuts from the terminals - if so then switch to the ring terminals. > > 73, > Don W3FPR > >> On 6/30/2020 6:21 PM, Mike Kopacki wrote: >> >> Don, don?t know what you mean by the APP assembly. >> >> I can only see one metal part on the inside of the red and black connectors that plug into the K2. I assume that is the ?contact blade?? I see nothing else on the inside. >> >> But here is a possible problem, that I will throw out, knowing full well that some will think I am not very smart?..I had to buy banana plugs to make the power cable, which is part of the KPA-100 assembly instructions. When I received them from MFJ, model MFJ-7713, it was a solderless type that I had never seen before. I talked to three people at MFJ, none could explain how the wire attached to the plug. The third guy hung up on me. >> >> So I connected the wire to the plug the only way I could see, but the configuration of the plug still eludes me. >> >> The P/S output is 13.6V. I?m seeing 13.1V at the K2. If the normal drop is .3V, it should read 13.3V at the K2. Is the difference of .2V ?substantial?? >> >> Mike NJ2OM >> >> Sent from Mail for Windows 10 >> >> *From: *Don Wilhelm >> *Sent: *Tuesday, June 30, 2020 6:01 PM >> *To: *Mike Kopacki >> *Cc: *elecraft at mailman qth. net >> *Subject: *Re: [Elecraft] K2 K2/100 post FD review >> >> Mike, >> >> You should have only 0.3 volts drop IN the K2 itself, so given your >> >> display of 13.1 volts on the K2, that says you have a substantial >> >> voltage drop in the power cable. >> >> Is it wired directly to the power supply? Are all the connections >> >> tight? Is the APP assembly at the K2 correct? Look at the end of the >> >> connector - do you see only the contact blade? or can you see the end of >> >> the spring finger under the contact blade visible? If the spring finger >> >> is visible, the contact blades have not been pushed in far enough - >> >> apply pressure to the back to seat the connector. >> >> Make the same visual check on the APP connector mounted in the KPA100. >> >> If it needs correction, you will have to get inside the KPA100 to >> >> correct it. >> >> 73, >> >> Don W3FPR >> >> On 6/30/2020 5:32 PM, Mike Kopacki wrote: >> >> > Don... >> >> > >> >> > The power supply is an MFJ 13.8V/25A switching power supply. It measures 13.63V at the terminals. >> >> > >> >> > The K2 shows 13.1V in receive mode. >> >> > >> >> > During transmit on all bands, the K2 shows 11.3-11.9V, depending on the band. >> >> > >> >> > All the power connections appear to be tight. >> >> > >> >> > Thanks, >> >> > Mike NJ2OM >> >> > >> >> > >> > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to donovanf at starpower.net From kl7uw at acsalaska.net Tue Jun 30 21:44:55 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Tue, 30 Jun 2020 17:44:55 -0800 Subject: [Elecraft] K3s noise figure spec Message-ID: <202007010144.0611ivqD014693@mail40c28.carrierzone.com> Dave, I don't know the NF, but my K3 with PR6 (which the K3s supposedly has internal) has a MDS of -145 dBm at 500-Hz bandwidth. That is fine for 50-MHz on eme (most demanding mode). I have a ARR P50VDG preamp at the base of my 6m-eme tower which provides 0.5 dBNF with 24 dB gain. I run it with PR6 turned off for very slight improvement. The K3s 50-MHz NF is probably fine with internal preamp ON. For comparison my 2m-eme system MDS is -157 dBm (preamp is 0.1 dBNF). But on 144-MHz low NF has more benefit since sky noise is lower (250K vs 2000K on 6m). In truth with the rise in environmental noise, low NF on 2m is getting less effective. 6m-eme folk say this: "If your coax line loss to the antenna is < 1 dB, locating a preamp at the antenna is unnecessary". K3s should do fine without external preamp (in general). BTW my KX3 with internal preamp at 30-dB gain level has equal sensitivity to my K3+PR6. 73, Ed - KL7UW Date: Tue, 30 Jun 2020 19:31:01 -0400 From: Dave Sublette To: Elecraft Discussion List Subject: [Elecraft] K3s noise figure spec Does anybody KNOW what the noise figure is for the 50MHz preamp on the K3s? It isn't listed in the specifications. I need to know in order to make system noise figure calculations. My feedline is going to be long (low loss, but long) and I'm trying to determine if I will need a preamp mounted at the antenna. Thanks, Dave, K4TO 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From hsherriff at reagan.com Tue Jun 30 22:09:57 2020 From: hsherriff at reagan.com (Harlan Sherriff) Date: Tue, 30 Jun 2020 22:09:57 -0400 Subject: [Elecraft] Voltage Drop In-Reply-To: <1585645260.16927019.1593565492243.JavaMail.zimbra@embarqmail.com> References: <1585645260.16927019.1593565492243.JavaMail.zimbra@embarqmail.com> Message-ID: <2A3BDFD5-2FFD-42AB-8243-8701E18E4ED1@reagan.com> You have trouble with Fluke DMM?s? Sent from my iPhone > On Jun 30, 2020, at 9:06 PM, Wilson Lamb wrote: > > ?Are we going to talk about RF getting into DMMs? > The DMMs I've used can't be used on tractors or under the hood of cars not even on the battery, because of ignition noise. > There's a lot to be said for old school needle meters! > WL > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to hsherriff at reagan.com From infomet at embarqmail.com Tue Jun 30 22:41:26 2020 From: infomet at embarqmail.com (Wilson Lamb) Date: Tue, 30 Jun 2020 22:41:26 -0400 (EDT) Subject: [Elecraft] Voltage Drop In-Reply-To: <2A3BDFD5-2FFD-42AB-8243-8701E18E4ED1@reagan.com> References: <1585645260.16927019.1593565492243.JavaMail.zimbra@embarqmail.com> <2A3BDFD5-2FFD-42AB-8243-8701E18E4ED1@reagan.com> Message-ID: <221210552.16958860.1593571286388.JavaMail.zimbra@embarqmail.com> Truth be told, I don't think so. I use almost entirely low end consumer stuff, mostly because I blow up at least a meter a year two, when I put the 10A scale across a storage battery, The 750VDC scale across 2KV, or 400V to the low Ohms scale. When it's a free harbor Freight meter, I don't lose any sleep! WL ----- Harlan Sherriff wrote: > You have trouble with Fluke DMM?s? > > Sent from my iPhone > > > On Jun 30, 2020, at 9:06 PM, Wilson Lamb wrote: > > > > ?Are we going to talk about RF getting into DMMs? > > The DMMs I've used can't be used on tractors or under the hood of cars not even on the battery, because of ignition noise. > > There's a lot to be said for old school needle meters! > > WL > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to hsherriff at reagan.com > From nr4c at widomaker.com Tue Jun 30 23:20:08 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 30 Jun 2020 23:20:08 -0400 Subject: [Elecraft] K2 K2/100 post FD review In-Reply-To: <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> References: <37414E33-A0DA-420A-B304-8C3070735BEF@gmail.com> Message-ID: <2714B375-96D3-4F2C-983F-EF2558A164F2@widomaker.com> Watts is Volts X Amps. Fewer Volts means more Amps. More Amps means more work for power supply, leading to fewer Volts. Fewer Volts means ...( you get the picture). Sent from my iPhone ...nr4c. bill > On Jun 30, 2020, at 8:37 PM, Mike Kopacki wrote: > > ?I didn?t have ring connectors big enough but I did have spade connectors. I crimped and soldered them but there was no change in the voltage readings during receive and transmit. > > Is it possible that the power supply is failing? > > Why, if the voltage drops during transmit to 11.6V, does the radio still put out 100W on 30, 40 and 80 meters? > > Thanks, > Mike NJ2OM > >> On Jun 30, 2020, at 6:55 PM, Don Wilhelm wrote: >> >> ?Mike, >> >> The red and black assembly is an Anderson Power Pole connector - commonly called APP. >> >> For the small receive current drawn, the voltage drop in the wire and connectors should be close to zero, so the 0.2 volts is significant for #12 wire unless there is something not properly tightened on the connectors. The drop will be more substantial with the increased current during transmit at 100 watts. >> >> Banana plugs and jacks can be used to carry a heavy current, but some of the ones I have seen have a poor contact method of fastening the wire to the banana plugs - properly installed wires on banana plugs are good for up to 30 to 50 amps. Is there any way you can connect ring terminals onto those power supply terminals? Like removing the outer nuts from the terminals - if so then switch to the ring terminals. >> >> 73, >> Don W3FPR >> >>>> On 6/30/2020 6:21 PM, Mike Kopacki wrote: >>> >>> Don, don?t know what you mean by the APP assembly. >>> >>> I can only see one metal part on the inside of the red and black connectors that plug into the K2. I assume that is the ?contact blade?? I see nothing else on the inside. >>> >>> But here is a possible problem, that I will throw out, knowing full well that some will think I am not very smart?..I had to buy banana plugs to make the power cable, which is part of the KPA-100 assembly instructions. When I received them from MFJ, model MFJ-7713, it was a solderless type that I had never seen before. I talked to three people at MFJ, none could explain how the wire attached to the plug. The third guy hung up on me. >>> >>> So I connected the wire to the plug the only way I could see, but the configuration of the plug still eludes me. >>> >>> The P/S output is 13.6V. I?m seeing 13.1V at the K2. If the normal drop is .3V, it should read 13.3V at t