From jim at audiosystemsgroup.com Wed Apr 1 01:39:56 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 31 Mar 2020 22:39:56 -0700 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <5E841005.19826.1F74295@john.johnjeanantiqueradio.com> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com> <04fe01d60787$266c00c0$73440240$@carolinaheli.com> <5E841005.19826.1F74295@john.johnjeanantiqueradio.com> Message-ID: <7158cc25-a2ee-4af8-bbb4-e67645c2a60e@audiosystemsgroup.com> On 3/31/2020 8:52 PM, John K9UWA wrote: > Cut the hardline to multiples of 1/2 wavelength and the swr will be 1 to 1 on both > ends. 50 in 50 out. Did you notice that this is for an all-band antenna? 73, Jim K9YC From xdavid at cis-broadband.com Wed Apr 1 04:45:51 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Wed, 1 Apr 2020 01:45:51 -0700 Subject: [Elecraft] K3 SSB filters In-Reply-To: <81e0bbfc-49a0-9521-5211-7f778345456e@embarqmail.com> References: <20200331234831.ftc4ipaltm2hyg2h@n0nb.us> <81e0bbfc-49a0-9521-5211-7f778345456e@embarqmail.com> Message-ID: No, the roofing filters aren't superfluous even with lower level signals.? If you set the bandwidths similarly as I do all of the time, the rejection of the filter adds to the rejection from the DSP.? I think this should be pretty obvious. Dave?? AB7E On 3/31/2020 8:36 PM, Don Wilhelm wrote: > Hopefully that we will remember that the DSP filter skirts are steeper > than the crystal filter skirts, so judicious use of the HiCut and > LoCut will provide us with a better passband than narrow roofing filters. > > What the roofing filters will do is keep the receiver from reducing > the hardware AGC for stations which are within the roofing filter > passband. > It takes adjacent signals in excess of S-9 +30 for the adjacent signal > to activate the hardware AGC (which protects the front end DAC from > overload).? If the interfering station does not exceed that threshold, > then the DSP filters will take care of it, and the need for more > narrow roofing filters is superfluous. > > 73, > Don W3FPR From xdavid at cis-broadband.com Wed Apr 1 04:55:25 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Wed, 1 Apr 2020 01:55:25 -0700 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <882271b8-9566-9dc5-3add-b1ba6f6979fb@audiosystemsgroup.com> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com> <882271b8-9566-9dc5-3add-b1ba6f6979fb@audiosystemsgroup.com> Message-ID: <0b147322-34fc-0b70-9013-950b811d8fc0@cis-broadband.com> Very true, and in fact due to those ground losses the feedpoint impedance might be higher ... and therefore provide a better "match" to the 75 CATV line than if it was 35 ohms.? The loss just shows up in the ground instead of in the UNUN (they aren't lossless), on the line, or in the rig tuner. I agree with most of the comments here.? I'd try it first without the 2:1 UNUN. 73, Dave? AB7E On 3/31/2020 11:04 AM, Jim Brown wrote: > > > Also, I suggest that you check the feedpoint Z with a good antenna > analyzer right at the antenna. Depending on your soil conductivity, 35 > ohms is pretty optimistic. > > 73, Jim K9YC From john at kk9a.com Wed Apr 1 07:30:29 2020 From: john at kk9a.com (john at kk9a.com) Date: Wed, 01 Apr 2020 06:30:29 -0500 Subject: [Elecraft] K3 SSB Filters Message-ID: <20200401063029.Horde.RiCwny1E30bzSvMyq6RxwDl@www11.qth.com> I concur. I have 2.8, 2.1 and 1.8 KHz 8 pole roofing filters in my K3S. I made over 8500 SSB QSOs last month and I used the 2.1 KHz roofing filter for all of them. John KK9A Jim Brown K9YC wrote: I tried that and didn't like the result. I prefer 2.1 kHz 8 pole 73, Jim K9YC From john at kk9a.com Wed Apr 1 07:30:44 2020 From: john at kk9a.com (john at kk9a.com) Date: Wed, 01 Apr 2020 06:30:44 -0500 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. Message-ID: <20200401063044.Horde.DlxvmZsyizMjwxodki3Xwat@www11.qth.com> You can also use coax to make matching transformer however I don't know how either of these methods would work for AE4PB's 6 band vertical. John KK9A John K9UWA wrote: Cut the hardline to multiples of 1/2 wavelength and the swr will be 1 to 1 on both ends. 50 in 50 out. In this case the OP needs around 200 feet. Once your get the velocity factor for the 1/2" hardline... that is ballpark 80 to 83%. for 3.540 mhz is 265 feet x .8 = 212 feet. If you don't have a piece of test gear to get it cut correctly then put a 50 ohm dummy load at the far end keep cutting until your wattmeter says 1 to 1 swr. 1/2 wave multiples will hit most of the ham bands. A little high in the 30m band. Close enough. 73 John k9uwa 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 tony.kaz at verizon.net Wed Apr 1 07:51:10 2020 From: tony.kaz at verizon.net (tony.kaz at verizon.net) Date: Wed, 1 Apr 2020 07:51:10 -0400 Subject: [Elecraft] K3 SSB Filters In-Reply-To: <20200401063029.Horde.RiCwny1E30bzSvMyq6RxwDl@www11.qth.com> References: <20200401063029.Horde.RiCwny1E30bzSvMyq6RxwDl@www11.qth.com> Message-ID: <040301d6081b$d6f18520$84d48f60$@verizon.net> John, I concur. When I am running them especially on 20M I find I have the LO Cut at .35 and the HI Cut at 2.25-2.35. Audio is good. Below 2.25 if the calling station is a little off freq or has terrible audio I may waste time trying to get the call. N2TK, Tony -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of john at kk9a.com Sent: Wednesday, April 1, 2020 7:30 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] K3 SSB Filters I concur. I have 2.8, 2.1 and 1.8 KHz 8 pole roofing filters in my K3S. I made over 8500 SSB QSOs last month and I used the 2.1 KHz roofing filter for all of them. John KK9A Jim Brown K9YC wrote: I tried that and didn't like the result. I prefer 2.1 kHz 8 pole 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 tony.kaz at verizon.net From john at johnjeanantiqueradio.com Wed Apr 1 08:28:36 2020 From: john at johnjeanantiqueradio.com (John K9UWA) Date: Wed, 01 Apr 2020 08:28:36 -0400 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <7158cc25-a2ee-4af8-bbb4-e67645c2a60e@audiosystemsgroup.com> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com>, <5E841005.19826.1F74295@john.johnjeanantiqueradio.com>, <7158cc25-a2ee-4af8-bbb4-e67645c2a60e@audiosystemsgroup.com> Message-ID: <5E8488F4.7043.2C24FE@john.johnjeanantiqueradio.com> Ah YES I noticed it is for a multi band antenna. 2 wavelengths 3540 = 265' 4 wavelengths 7080 = 265' 6 wavelengths 10600 = 265' 8 wavelengths 14160 = 265' 12 wavelngths 21240 = 265' 16 wavelengths 28320 = 265' Multiply the 265' by velocity factor of the coax and you will be someplace just a bit over 200 feet. the 10mhz band is off a bit. So OK... other than that 80, 40, 20, 15,10 are all harmonically related. As I said 50 in and 50 out. If the OP runs this vertical on 17 and 12m then yes he will have maybe a 1.5 / 1 mismatch caused by the coax. But the antenna isn't designed for 17 and 12. I cut all the 3/4" CATV in my system with a Hewlett Packard HP 4815A Vector Impedance Meter. Any 1/2 wave mult the the SWR is the same in as out. Any ODD 1/4 wavelength multiple creates a transformation With Multiple 4 hi stacks of yagi's I have many of those in the system as well. 75 ohm cable works well to put pairs or quads of yagi's together. The only thing that maybe won't be perfect is the actual vertical itself may not be a 50 ohm input. His vertical is a Hustler 6BTV. 73 John k9uwa On 31 Mar 2020 at 22:39, Jim Brown wrote: > On 3/31/2020 8:52 PM, John K9UWA wrote: > > Cut the hardline to multiples of 1/2 wavelength and the swr will be 1 to 1 on > > both ends. 50 in 50 out. > > Did you notice that this is for an all-band antenna? > > 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 rmcgraw at blomand.net Wed Apr 1 09:14:05 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Wed, 1 Apr 2020 08:14:05 -0500 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <5E8488F4.7043.2C24FE@john.johnjeanantiqueradio.com> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com> <5E841005.19826.1F74295@john.johnjeanantiqueradio.com> <7158cc25-a2ee-4af8-bbb4-e67645c2a60e@audiosystemsgroup.com> <5E8488F4.7043.2C24FE@john.johnjeanantiqueradio.com> Message-ID: <15c1f0d6-e26c-dc9b-3d59-3fa94748f458@blomand.net> Based on TLW calculations for 1/2" CATV 75 ohm hard line, 200 ft at 28 MHz should show a 1.87:1 SWR at the transmitter.? Assuming 35 ohms load Z.? This equates to 1.027 dB total loss with 0.207 dB being attributed to the SWR on the line.?? Thus going through the efforts and matching process would only net an improvement of 0.207 dB on 10 meters.? Lower frequencies would be less. Since this is a 5 or 6 band antenna, I doubt the Z at the feed point will always be 35 ohms.? In order to determine what is actually needed, one would need measurements for each band. Conclusion:? Feed it with 200 ft of 1/2" CATV 75 ohm hard line, use a short jumper of RG6, or 8X or whatever to connect the hardline to the radio and be done with it. NOTE:? I just noticed that the numbers below are somewhat in error. 468/3.540 = 132.2 which is 1/2 wavelength.? Thus 132.2 X 2 = 264 ft which is 1 wavelength, not 2 wavelengths as stated.?? I didn't run the math on the others. 73 Bob, K4TAX On 4/1/2020 7:28 AM, John K9UWA wrote: > Ah YES I noticed it is for a multi band antenna. > > 2 wavelengths 3540 = 265' > 4 wavelengths 7080 = 265' > 6 wavelengths 10600 = 265' > 8 wavelengths 14160 = 265' > 12 wavelngths 21240 = 265' > 16 wavelengths 28320 = 265' > > Multiply the 265' by velocity factor of the coax and you will be someplace just a bit > over 200 feet. > > the 10mhz band is off a bit. So OK... other than that 80, 40, 20, 15,10 are all > harmonically related. As I said 50 in and 50 out. If the OP runs this vertical on 17 > and 12m then yes he will have maybe a 1.5 / 1 mismatch caused by the coax. But > the antenna isn't designed for 17 and 12. > > I cut all the 3/4" CATV in my system with a Hewlett Packard HP 4815A Vector > Impedance Meter. Any 1/2 wave mult the the SWR is the same in as out. Any > ODD 1/4 wavelength multiple creates a transformation With Multiple 4 hi stacks of > yagi's I have many of those in the system as well. 75 ohm cable works well to put > pairs or quads of yagi's together. > > The only thing that maybe won't be perfect is the actual vertical itself may not be a > 50 ohm input. His vertical is a Hustler 6BTV. > 73 > John k9uwa > > From john at johnjeanantiqueradio.com Wed Apr 1 10:00:39 2020 From: john at johnjeanantiqueradio.com (John K9UWA) Date: Wed, 01 Apr 2020 10:00:39 -0400 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <15c1f0d6-e26c-dc9b-3d59-3fa94748f458@blomand.net> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com>, <5E8488F4.7043.2C24FE@john.johnjeanantiqueradio.com>, <15c1f0d6-e26c-dc9b-3d59-3fa94748f458@blomand.net> Message-ID: <5E849E87.23786.806B42@john.johnjeanantiqueradio.com> Supposedly the feedpoint impedance is 52 ohms ??? Yes, I question that a bit. Read all about it here. Sorry I doubled the 1/2 wave mults. https://www.dxengineering.com/search/department/antennas/section/hf-vertical-a ntennas/brand/hustler-antenna/product-line/hustle Hustler Antenna 6BTV - Hustler 6BTV 6-Band HF Vertical Antenna and DXE Installation Guide Packages Antenna, Vertical, HF, 6-Band, 80, 40, 30, 20, 15, 10 meters, 1.5 kW, 24 ft., + DXE BTV High Perf. Guide, Each $241.99 Performance provided by the Hustler 6BTVs is better than any other antenna of this type. Broad-banding is such that one measurement and setting permits both phone and CW operation. The antenna provides nominal 52-ohm base impedance when installed and tuned according to the instructions. The radiation efficiency is equal to, or greater than, other trap verticals. 73 John k9uwa On 1 Apr 2020 at 8:14, Bob McGraw K4TAX wrote: > Based on TLW calculations for 1/2" CATV 75 ohm hard line, 200 ft at 28 > MHz should show a 1.87:1 SWR at the transmitter.? Assuming 35 ohms load > Z.? This equates to 1.027 dB total loss with 0.207 dB being attributed > to the SWR on the line.?? Thus going through the efforts and matching > process would only net an improvement of 0.207 dB on 10 meters.? Lower > frequencies would be less. > > Since this is a 5 or 6 band antenna, I doubt the Z at the feed point > will always be 35 ohms.? In order to determine what is actually needed, > one would need measurements for each band. > > Conclusion:? Feed it with 200 ft of 1/2" CATV 75 ohm hard line, use a > short jumper of RG6, or 8X or whatever to connect the hardline to the > radio and be done with it. > > > NOTE:? I just noticed that the numbers below are somewhat in error. > > 468/3.540 = 132.2 which is 1/2 wavelength.? Thus 132.2 X 2 = 264 ft > which is 1 wavelength, not 2 wavelengths as stated.?? I didn't run the > math on the others. > > 73 > > Bob, K4TAX > > > On 4/1/2020 7:28 AM, John K9UWA wrote: > > Ah YES I noticed it is for a multi band antenna. > > > > 2 wavelengths 3540 = 265' > > 4 wavelengths 7080 = 265' > > 6 wavelengths 10600 = 265' > > 8 wavelengths 14160 = 265' > > 12 wavelngths 21240 = 265' > > 16 wavelengths 28320 = 265' > > > > Multiply the 265' by velocity factor of the coax and you will be someplace > > just a bit over 200 feet. > > > > the 10mhz band is off a bit. So OK... other than that 80, 40, 20, 15,10 are > > all harmonically related. As I said 50 in and 50 out. If the OP runs this > > vertical on 17 and 12m then yes he will have maybe a 1.5 / 1 mismatch caused > > by the coax. But the antenna isn't designed for 17 and 12. > > > > I cut all the 3/4" CATV in my system with a Hewlett Packard HP 4815A Vector > > Impedance Meter. Any 1/2 wave mult the the SWR is the same in as out. Any ODD > > 1/4 wavelength multiple creates a transformation With Multiple 4 hi stacks of > > yagi's I have many of those in the system as well. 75 ohm cable works well to > > put pairs or quads of yagi's together. > > > > The only thing that maybe won't be perfect is the actual vertical itself may > > not be a 50 ohm input. His vertical is a Hustler 6BTV. 73 John k9uwa > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 oz7bq at yahoo.dk Wed Apr 1 10:21:26 2020 From: oz7bq at yahoo.dk (Hans J Rasmusen) Date: Wed, 1 Apr 2020 16:21:26 +0200 Subject: [Elecraft] K160Rx protection References: <997537F1-609A-455B-9759-4357D87F2E17.ref@yahoo.dk> Message-ID: <997537F1-609A-455B-9759-4357D87F2E17@yahoo.dk> Hello My K2/K100 complain and wants to get on the air. I plan to use the build-in K160RX antenna switch for a separate rx antenna, which is about 10m /30 feet from my tx antenna. Plan to run 100 W. Tx antenna is a vertical. Rx antenna is a low (1 m above grd) horizontal dipole. Do I have to install a rx protection curcuit on the rx antenna. I do not remember doing so earlier, but have forgotten and want to play safe. Thank you, stay safe and keep distance 73 Hans J?rgen (Joe) OZ7BQ Sendt fra min iPhone From wes_n7ws at triconet.org Wed Apr 1 10:17:14 2020 From: wes_n7ws at triconet.org (Wes) Date: Wed, 1 Apr 2020 07:17:14 -0700 Subject: [Elecraft] K3 SSB filters In-Reply-To: <16e87895-d5c0-4029-4dd2-1d0cbce2e3ab@audiosystemsgroup.com> References: <20200331234831.ftc4ipaltm2hyg2h@n0nb.us> <81e0bbfc-49a0-9521-5211-7 f778345456e@embarqmail.com> <16e87895-d5c0-4029-4dd2-1d0cbce2e3ab@audiosystemsgroup.com> Message-ID: <63eb2868-71ea-3336-be09-e4887d59ac52@triconet.org> Until you get down to the noise floor isn't it always the sum (in dB) of the rejection? Wes? N7WS On 3/31/2020 8:52 PM, Jim Brown wrote: > On 3/31/2020 8:36 PM, Don Wilhelm wrote: >> What the roofing filters will do is keep the receiver from reducing the >> hardware AGC for stations which are within the roofing filter passband. > > In addition, when the DSP IF filters are set to about the same width as the > roofing filters, the two filters "cascade" -- the rejection of adjacent > signals is the sum of the rejection of the two filters. > > 73, Jim K9YC From donwilh at embarqmail.com Wed Apr 1 10:58:53 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Wed, 1 Apr 2020 10:58:53 -0400 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <15c1f0d6-e26c-dc9b-3d59-3fa94748f458@blomand.net> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com> <5E841005.19826.1F74295@john.johnjeanantiqueradio.com> <7158cc25-a2ee-4af8-bbb4-e67645c2a60e@audiosystemsgroup.com> <5E8488F4.7043.2C24FE@john.johnjeanantiqueradio.com> <15c1f0d6-e26c-dc9b-3d59-3fa94748f458@blomand.net> Message-ID: Bob and all, One problem is that you are using '468/fMhz' to compute the length of a half wavelength. That is the common 'cutting formula' which includes an end-effect factor of about 5% which reduces the length of a half wave radiator. An actual half wavelength is longer. The actual length (in feet) of a wavelength is 983.5712/fMhz which is considerably longer than that computed using 468/fMhz times 2. When dealing with a length of transmission line, the use of the '468' factor should not be used - compute the actual wavelength and then apply the velocity factor. For those who work in meters instead of feet, the factor is 299.7925/fMHz. See any antenna handbook which has essential characteristics of antennas for validation of my numbers. 73, Don W3FPR On 4/1/2020 9:14 AM, Bob McGraw K4TAX wrote: > > NOTE:? I just noticed that the numbers below are somewhat in error. > > 468/3.540 = 132.2 which is 1/2 wavelength.? Thus 132.2 X 2 = 264 ft > which is 1 wavelength, not 2 wavelengths as stated.?? I didn't run the > math on the others. > From donwilh at embarqmail.com Wed Apr 1 11:09:36 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Wed, 1 Apr 2020 11:09:36 -0400 Subject: [Elecraft] K160Rx protection In-Reply-To: <997537F1-609A-455B-9759-4357D87F2E17@yahoo.dk> References: <997537F1-609A-455B-9759-4357D87F2E17.ref@yahoo.dk> <997537F1-609A-455B-9759-4357D87F2E17@yahoo.dk> Message-ID: Hans, The K2 RX ANT is injected at the same point after the T/R switch and before the Low Pass Filter, so any energy from the transmit antenna will not harm the K2 during transmit, although it may add to the RF level going into the LPF and be amplified by the KPA100. 73, Don W3FPR On 4/1/2020 10:21 AM, Hans J Rasmusen via Elecraft wrote: > Hello > My K2/K100 complain and wants to get on the air. > I plan to use the build-in K160RX antenna switch for a separate rx antenna, which is about 10m /30 feet from my tx antenna. Plan to run 100 W. > Tx antenna is a vertical. Rx antenna is a low (1 m above grd) horizontal dipole. > Do I have to install a rx protection curcuit on the rx antenna. > I do not remember doing so earlier, but have forgotten and want to play safe. From Lyn at LNAINC.com Wed Apr 1 11:42:02 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Wed, 1 Apr 2020 10:42:02 -0500 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <5E849E87.23786.806B42@john.johnjeanantiqueradio.com> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com>, <5E8488F4.7043.2C24FE@john.johnjeanantiqueradio.com>, <15c1f0d6-e26c-dc9b-3d59-3fa94748f458@blomand.net> <5E849E87.23786.806B42@john.johnjeanantiqueradio.com> Message-ID: <007601d6083c$1706f440$4514dcc0$@LNAINC.com> Try this link instead: https://www.dxengineering.com/parts/hsr-6btv 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of John K9UWA Sent: Wednesday, April 01, 2020 9:01 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] 75ohm Impedance question K3S and Antenna side. Supposedly the feedpoint impedance is 52 ohms ??? Yes, I question that a bit. Read all about it here. Sorry I doubled the 1/2 wave mults. https://www.dxengineering.com/search/department/antennas/section/hf-vertical -a ntennas/brand/hustler-antenna/product-line/hustle Hustler Antenna 6BTV - Hustler 6BTV 6-Band HF Vertical Antenna and DXE Installation Guide Packages Antenna, Vertical, HF, 6-Band, 80, 40, 30, 20, 15, 10 meters, 1.5 kW, 24 ft., + DXE BTV High Perf. Guide, Each $241.99 Performance provided by the Hustler 6BTVs is better than any other antenna of this type. Broad-banding is such that one measurement and setting permits both phone and CW operation. The antenna provides nominal 52-ohm base impedance when installed and tuned according to the instructions. The radiation efficiency is equal to, or greater than, other trap verticals. 73 John k9uwa On 1 Apr 2020 at 8:14, Bob McGraw K4TAX wrote: > Based on TLW calculations for 1/2" CATV 75 ohm hard line, 200 ft at 28 > MHz should show a 1.87:1 SWR at the transmitter. Assuming 35 ohms load > Z. This equates to 1.027 dB total loss with 0.207 dB being attributed > to the SWR on the line. Thus going through the efforts and matching > process would only net an improvement of 0.207 dB on 10 meters. Lower > frequencies would be less. > > Since this is a 5 or 6 band antenna, I doubt the Z at the feed point > will always be 35 ohms. In order to determine what is actually needed, > one would need measurements for each band. > > Conclusion: Feed it with 200 ft of 1/2" CATV 75 ohm hard line, use a > short jumper of RG6, or 8X or whatever to connect the hardline to the > radio and be done with it. > > > NOTE: I just noticed that the numbers below are somewhat in error. > > 468/3.540 = 132.2 which is 1/2 wavelength. Thus 132.2 X 2 = 264 ft > which is 1 wavelength, not 2 wavelengths as stated. I didn't run the > math on the others. > > 73 > > Bob, K4TAX > > > On 4/1/2020 7:28 AM, John K9UWA wrote: > > Ah YES I noticed it is for a multi band antenna. > > > > 2 wavelengths 3540 = 265' > > 4 wavelengths 7080 = 265' > > 6 wavelengths 10600 = 265' > > 8 wavelengths 14160 = 265' > > 12 wavelngths 21240 = 265' > > 16 wavelengths 28320 = 265' > > > > Multiply the 265' by velocity factor of the coax and you will be someplace > > just a bit over 200 feet. > > > > the 10mhz band is off a bit. So OK... other than that 80, 40, 20, 15,10 are > > all harmonically related. As I said 50 in and 50 out. If the OP runs this > > vertical on 17 and 12m then yes he will have maybe a 1.5 / 1 mismatch caused > > by the coax. But the antenna isn't designed for 17 and 12. > > > > I cut all the 3/4" CATV in my system with a Hewlett Packard HP 4815A Vector > > Impedance Meter. Any 1/2 wave mult the the SWR is the same in as out. Any ODD > > 1/4 wavelength multiple creates a transformation With Multiple 4 hi stacks of > > yagi's I have many of those in the system as well. 75 ohm cable works well to > > put pairs or quads of yagi's together. > > > > The only thing that maybe won't be perfect is the actual vertical itself may > > not be a 50 ohm input. His vertical is a Hustler 6BTV. 73 John k9uwa > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 lmarion at mt.net Wed Apr 1 11:44:32 2020 From: lmarion at mt.net (lmarion) Date: Wed, 1 Apr 2020 09:44:32 -0600 Subject: [Elecraft] Glad you are OK In-Reply-To: <81e0bbfc-49a0-9521-5211-7f778345456e@embarqmail.com> References: <20200331234831.ftc4ipaltm2hyg2h@n0nb.us> <81e0bbfc-49a0-9521-5211-7f778345456e@embarqmail.com> Message-ID: Good to learn something from you today Don, Thanks 73, Leroy AB7CE -----Original Message----- From: Don Wilhelm Sent: Tuesday, March 31, 2020 9:36 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] K3 SSB filters Hopefully that we will remember that the DSP filter skirts are steeper than the crystal filter skirts, so judicious use of the HiCut and LoCut will provide us with a better passband than narrow roofing filters. What the roofing filters will do is keep the receiver from reducing the hardware AGC for stations which are within the roofing filter passband. It takes adjacent signals in excess of S-9 +30 for the adjacent signal to activate the hardware AGC (which protects the front end DAC from overload). If the interfering station does not exceed that threshold, then the DSP filters will take care of it, and the need for more narrow roofing filters is superfluous. From garnere at gmail.com Wed Apr 1 12:09:37 2020 From: garnere at gmail.com (Eric Garner) Date: Wed, 1 Apr 2020 09:09:37 -0700 Subject: [Elecraft] axt1 tripod In-Reply-To: References: <1585693018142-0.post@n2.nabble.com> <1f3e9daa-6618-497a-8e4a-dc648959e43e@www.fastmail.com> Message-ID: I have an XIT Photo XT57TRS tripod that I use with the AXT1 with the AX1. With the removable plate it seems to work well : https://imgur.com/a/dIaXvZl -eric On Tue, Mar 31, 2020 at 5:57 PM Walter Underwood wrote: > Tripod screws are 1/4-20, so an angle bracket and a screw and a wingnut > could help. Tilt the head over 90?. > > I did something similar to attach a Nagoya NMO base station mount to a > tripod. > > Photos and description here. I?ve since replaced the hex nut with a > wingnut. > > > https://observer.wunderwood.org/2018/07/08/using-a-mobile-antenna-as-a-temporary-base-antenna/ > > wunder > K6WRU > Walter Underwood > CM87wj > http://observer.wunderwood.org/ (my blog) > > > On Mar 31, 2020, at 5:49 PM, Jay Rutherford wrote: > > > > I raised this issue after getting my AX1 with tripod adaptor, since it > fit neither of my consumer tripods. You need either a really small tripod > head or a adjustable ball-type adapter that elevates the AX1 up enough to > use the BNC plug to the radio. > > > > Here is a link to one small ball head adapter from Amazon: > > > > AKOAK 1/4" Swivel Mini Ball Head Screw Tripod Mount for DSLR Camera > Camcorder Light Bracket > > 4.4 out of 5 stars > > > > I hope this helps. > > > > 73 Jay K3BH > > > > > > On Tue, Mar 31, 2020, at 18:16, rwwatson wrote: > >> Hello list, > >> I now almost have everything I need for my kx3 portable setup. I want > to use > >> the ax1 with an axt1 adapter and my tripod has a removable camera plate > >> which seems to prevent the coax from attaching to the axt1. any > suggestions > >> on a good tripod. > >> > >> > >> > >> -- > >> 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 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 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 garnere at gmail.com -- --Eric _________________________________________ Eric Garner From lladerman at earthlink.net Wed Apr 1 13:11:39 2020 From: lladerman at earthlink.net (W0FK) Date: Wed, 1 Apr 2020 10:11:39 -0700 (MST) Subject: [Elecraft] Shipping Status updates In-Reply-To: References: <985223B4-CA48-4F1A-B7E2-6B8736D2D4B4@poxika.net> <20200319062851.Horde.89eKWAV3uSPsORk5zHocuGc@www11.qth.com> <1584636415130-0.post@n2.nabble.com> Message-ID: <1585761099733-0.post@n2.nabble.com> Update: My KX2 was delivered to Elecraft today. Looks like the company is functioning as it can. Unless this is a nasty April Fool's joke from FedEx. Stay safe out there! 73 Lou, W0FK ----- St. Louis, MO "The difference between stupidity and genius is that genius has its limits." Albert Einstein -- Sent from: http://elecraft.365791.n2.nabble.com/ From jim at audiosystemsgroup.com Wed Apr 1 13:23:44 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 1 Apr 2020 10:23:44 -0700 Subject: [Elecraft] K3 SSB filters In-Reply-To: <63eb2868-71ea-3336-be09-e4887d59ac52@triconet.org> References: <20200331234831.ftc4ipaltm2hyg2h@n0nb.us> <81e0bbfc-49a0-9521-5211-7 f778345456e@embarqmail.com> <16e87895-d5c0-4029-4dd2-1d0cbce2e3ab@audiosystemsgroup.com> <63eb2868-71ea-3336-be09-e4887d59ac52@triconet.org> Message-ID: <304b0c32-e11f-65f9-3fde-1d5bf7e94466@audiosystemsgroup.com> On 4/1/2020 7:17 AM, Wes wrote: > Until you get down to the noise floor isn't it always the sum (in dB) of > the rejection? Isn't that what I said? Perhaps I said it badly. 73, Jim From jim at audiosystemsgroup.com Wed Apr 1 13:37:54 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 1 Apr 2020 10:37:54 -0700 Subject: [Elecraft] VF Varies With Frequency In-Reply-To: References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com> <5E841005.19826.1F74295@john.johnjeanantiqueradio.com> <7158cc25-a2ee-4af8-bbb4-e67645c2a60e@audiosystemsgroup.com> <5E8488F4.7043.2C24FE@john.johnjeanantiqueradio.com> <15c1f0d6-e26c-dc9b-3d59-3fa94748f458@blomand.net> Message-ID: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> On 4/1/2020 7:58 AM, Don Wilhelm wrote: > When dealing with a length of transmission line, the use of the '468' > factor should not be used - compute the actual wavelength and then apply > the velocity factor. There is yet another variable -- VF varies with frequency. At low frequencies, it is lower (slower), increasing until it converges to the published value at VHF. For this reason, matching sections and stubs must be measured at or near the operating frequency with an analyzer or as a stub placed in line with a generator and receiver. They should be cut long, then trimmed so that the null in that generator/receiver circuit is heard, or the analzyer reads a short or open. How much is this variation? For typical transmission lines, it's on the order of 1% from 80M, a bit more for 160M as compared to the published value. If what you're building is a stub to kill harmonics, it's the difference between the CW and phone bands on 80M. 73, Jim K9YC From kl7uw at acsalaska.net Wed Apr 1 13:40:53 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Wed, 01 Apr 2020 09:40:53 -0800 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. Message-ID: <202004011740.031HetQp003183@mail47c28.carrierzone.com> I agree with those who say just try it with TV cable connected, direct. Tuner will keep the transmitter happy. If you can cut the run to integrals of half wave that might be marginally better on Tx. Back before WWII hams never worried about SWR and just maxed RF current. Open-wire transmission line was popular (and low loss). In 1980 I bought a TS-180S and a 4BTR with 80m coil-whip addition. I attached the base direct to the front bumper of my 4x4 and operated mobile with no radials or tuner. Heard Antarctica on 20m from Eagle, AK. Should have kept the antenna. Sold the radio after losing the finals (driver still output 10w). Before my K3 the best radio I owned was a FT-840. I traded it for a FT-847 which was great on VHF/UHF but nowhere as good on HF (and part of the reason for getting the K3). 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From wes_n7ws at triconet.org Wed Apr 1 13:58:44 2020 From: wes_n7ws at triconet.org (Wes) Date: Wed, 1 Apr 2020 10:58:44 -0700 Subject: [Elecraft] K3 SSB filters In-Reply-To: <304b0c32-e11f-65f9-3fde-1d5bf7e94466@audiosystemsgroup.com> References: <20200331234831.ftc4ipaltm2hyg2h@n0nb.us> <81e0bbfc-49a0-9521-5211-7 f778345456e@embarqmail.com> <16e87895-d5c0-4029-4dd2-1d0cbce2e3ab@audiosystemsgroup.com> <63eb2868-71ea-3336-be09-e4887d59ac52@tr iconet.org> <304b0c32-e11f-65f9-3fde-1d5bf7e94466@audiosystemsgroup.com> Message-ID: <50f2e8bb-88df-3e85-3054-76479b9cfc52@triconet.org> You said: "In addition, when the DSP IF filters are set to about the same width as the roofing filters, the two filters "cascade" -- the rejection of adjacent signals is the sum of the rejection of the two filters. " There is no requirement that the widths be about the same. They could be widely different.? If one passes an interfering signal with no attenuation and the other has 100 dB rejection then the sum is 0 + 100 = 100.? Either could be first in the lineup. If the K3 second mixer was stronger, hardware AGC might not be necessary and the only need for a "roofing" filter would be to eliminate the image.? A single 10-12 kHz filter would suffice and DSP would be the final filter. Sounds like a K4HD doesn't it? On 4/1/2020 10:23 AM, Jim Brown wrote: > On 4/1/2020 7:17 AM, Wes wrote: >> Until you get down to the noise floor isn't it always the sum (in dB) of the >> rejection? > > Isn't that what I said? Perhaps I said it badly. > > 73, Jim From k6dgw at foothill.net Wed Apr 1 14:31:54 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Wed, 1 Apr 2020 11:31:54 -0700 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <5E841005.19826.1F74295@john.johnjeanantiqueradio.com> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com> <04fe01d60787$266c00c0$73440240$@carolinaheli.com> <5E841005.19826.1F74295@john.johnjeanantiqueradio.com> Message-ID: <4c6fa07b-ae23-a859-2e3e-92787dcb2aa1@foothill.net> Ummm ... not quite.? A "perfect" half-wave transmission line will reproduce the impedance of the load [which has been alleged to be 35 ohms but this is an all-band antenna so that may vary some] at the source [TX] end.? The real line will come close, its loss will have a small effect.? His ATU will see whatever the feedpoint complex impedance is, not necessarily 50 ohms. I'd suggest a good common-mode choke at the feedpoint too which might mean a short pigtail of RG-8 ... not sure if there are ferrite toroids that will fit the CATV hardline.? Jim, K9YC, has probably the best source of data on chokes, ferrites, et al at k9yc.com/Publish.htm 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 3/31/2020 8:52 PM, John K9UWA wrote: > Cut the hardline to multiples of 1/2 wavelength and the swr will be 1 to 1 on both > ends. 50 in 50 out. In this case the OP needs around 200 feet. Once your get the > velocity factor for the 1/2" hardline... that is ballpark 80 to 83%. for 3.540 mhz is > 265 feet x .8 = 212 feet. If you don't have a piece of test gear to get it cut > correctly then put a 50 ohm dummy load at the far end keep cutting until your > wattmeter says 1 to 1 swr. 1/2 wave multiples will hit most of the ham bands. A > little high in the 30m band. Close enough. > 73 > John k9uwa > From hayman.richard at gmail.com Wed Apr 1 15:38:12 2020 From: hayman.richard at gmail.com (Richard Hayman) Date: Wed, 1 Apr 2020 15:38:12 -0400 Subject: [Elecraft] RemoteRig Fail Message-ID: <21AA98E4-281C-41D7-97A7-59FCC5AD4B12@gmail.com> It worked yesterday. Cannot connect today. Any additional troubleshooting ideas? All testing looks good. I can get into both radio and control units? web page by putting in the local IP address in my browser. Therefore both LAN and WAN connectivity are OK. DNS address is OK. Connection not made, shows SIP error and two/tone warning sounds. Radio does not turn on. All pings are normal. I can connect to radio station's PC using TeamViewer from control point. 73, Dick, WN3R wn3r.us at gmail.com 202-497-2840 From jasimmons at pinewooddata.com Wed Apr 1 16:18:52 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Wed, 1 Apr 2020 15:18:52 -0500 Subject: [Elecraft] RemoteRig Fail In-Reply-To: <21AA98E4-281C-41D7-97A7-59FCC5AD4B12@gmail.com> References: <21AA98E4-281C-41D7-97A7-59FCC5AD4B12@gmail.com> Message-ID: <4872d555-622d-f480-2ac7-02096eea5e33@pinewooddata.com> Not entirely clear of the remote configuration. Is it possible the IP address on the remote end has changed? Teamviewer doesn't care about this. -de John? NI0K Richard Hayman wrote on 4/1/2020 2:38 PM: > It worked yesterday. Cannot connect today. > Any additional troubleshooting ideas? > All testing looks good. I can get into both radio and control units? web page by putting in the local IP address in my browser. > Therefore both LAN and WAN connectivity are OK. > DNS address is OK. > Connection not made, shows SIP error and two/tone warning sounds. Radio does not turn on. > All pings are normal. > I can connect to radio station's PC using TeamViewer from control point. > > > > 73, Dick, WN3R > wn3r.us at gmail.com > 202-497-2840 > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 anyone1545 at gmail.com Wed Apr 1 16:38:49 2020 From: anyone1545 at gmail.com (Gmail) Date: Wed, 1 Apr 2020 14:38:49 -0600 Subject: [Elecraft] 75 ohm coax Message-ID: <4B2AED56-5C0D-49AF-B98A-4AAC93998790@gmail.com> Careful, 75 ohms was picked for cable TV receiving Coax because it was lower loss then 50 ohms but it could not handle high power as 50 ohms could. 50 ohms is a power, loss compromise. 35 ohms For high power high loss, 50 ohms compromise, 75 ohms low loss low power. Ray W8LYJ Sent from my iPad From mpridesti at yahoo.com Wed Apr 1 17:45:25 2020 From: mpridesti at yahoo.com (Mpridesti) Date: Wed, 1 Apr 2020 17:45:25 -0400 Subject: [Elecraft] VF Varies With Frequency In-Reply-To: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> References: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> Message-ID: <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> Requested technical comment from a long established coaxial cable manufacturer on this topic. This was the response: The Vp is not measured at any frequency and is independent of frequency. The only variable in play is the dielectric constant. The Vp represents the speed at which a signal transmits along the cable as a % of the speed of air. Air/vacuum will be the fasted medium to use to transmit an RF signal. The thing is, air is usually not practical since there is nothing to support the center conductor, can be easily crushed and is susceptible to the ingress of moisture. We use foamed dielectrics and expanded tapes to get as close to air as possible. Vp will vary based on the specific dielectric used. The vast majority of our cables range in velocity of propagation from 76% to 86%. For a given cable, the Vp will likely not vary more that +/- 1% over it?s length but as I mentioned earlier, it would be best to use +/-2% for planning purposes. End response Regards, Mark, K1RX > On Apr 1, 2020, at 1:43 PM, Jim Brown wrote: > > ?On 4/1/2020 7:58 AM, Don Wilhelm wrote: >> When dealing with a length of transmission line, the use of the '468' factor should not be used - compute the actual wavelength and then apply the velocity factor. > > There is yet another variable -- VF varies with frequency. At low frequencies, it is lower (slower), increasing until it converges to the published value at VHF. For this reason, matching sections and stubs must be measured at or near the operating frequency with an analyzer or as a stub placed in line with a generator and receiver. They should be cut long, then trimmed so that the null in that generator/receiver circuit is heard, or the analzyer reads a short or open. > > How much is this variation? For typical transmission lines, it's on the order of 1% from 80M, a bit more for 160M as compared to the published value. If what you're building is a stub to kill harmonics, it's the difference between the CW and phone bands on 80M. > > 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 mpridesti at yahoo.com From mpridesti at yahoo.com Wed Apr 1 17:45:25 2020 From: mpridesti at yahoo.com (Mpridesti) Date: Wed, 1 Apr 2020 17:45:25 -0400 Subject: [Elecraft] VF Varies With Frequency In-Reply-To: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> References: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> Message-ID: <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> Requested technical comment from a long established coaxial cable manufacturer on this topic. This was the response: The Vp is not measured at any frequency and is independent of frequency. The only variable in play is the dielectric constant. The Vp represents the speed at which a signal transmits along the cable as a % of the speed of air. Air/vacuum will be the fasted medium to use to transmit an RF signal. The thing is, air is usually not practical since there is nothing to support the center conductor, can be easily crushed and is susceptible to the ingress of moisture. We use foamed dielectrics and expanded tapes to get as close to air as possible. Vp will vary based on the specific dielectric used. The vast majority of our cables range in velocity of propagation from 76% to 86%. For a given cable, the Vp will likely not vary more that +/- 1% over it?s length but as I mentioned earlier, it would be best to use +/-2% for planning purposes. End response Regards, Mark, K1RX > On Apr 1, 2020, at 1:43 PM, Jim Brown wrote: > > ?On 4/1/2020 7:58 AM, Don Wilhelm wrote: >> When dealing with a length of transmission line, the use of the '468' factor should not be used - compute the actual wavelength and then apply the velocity factor. > > There is yet another variable -- VF varies with frequency. At low frequencies, it is lower (slower), increasing until it converges to the published value at VHF. For this reason, matching sections and stubs must be measured at or near the operating frequency with an analyzer or as a stub placed in line with a generator and receiver. They should be cut long, then trimmed so that the null in that generator/receiver circuit is heard, or the analzyer reads a short or open. > > How much is this variation? For typical transmission lines, it's on the order of 1% from 80M, a bit more for 160M as compared to the published value. If what you're building is a stub to kill harmonics, it's the difference between the CW and phone bands on 80M. > > 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 mpridesti at yahoo.com From john at kn5l.net Wed Apr 1 19:00:37 2020 From: john at kn5l.net (John Oppenheimer) Date: Wed, 1 Apr 2020 18:00:37 -0500 Subject: [Elecraft] VF Varies With Frequency In-Reply-To: <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> References: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> Message-ID: A typical, Type RG-58A Vf measurement, as a function of frequency, is shown in second plot: https://www.kn5l.net/transMeasure/ Vf is frequency dependent. John KN5L On 4/1/20 4:45 PM, Mpridesti via Elecraft wrote: > Requested technical comment from a long established coaxial cable manufacturer on this topic. > > This was the response: > > The Vp is not measured at any frequency and is independent of frequency. From kl7cw at mtaonline.net Wed Apr 1 19:20:36 2020 From: kl7cw at mtaonline.net (Frederick Dwight) Date: Wed, 1 Apr 2020 15:20:36 -0800 Subject: [Elecraft] 75 ohm coax Message-ID: <20200401232309653@smtp.email-protect.gosecure.net> If you have 75 ohm coax, I would just try it. If the Z of the antenna is in fact around 35 ohms, the Z at the shack end may be close to 35 ohms on some bands, but on others the Z will be transposed to well over 100 ohms with an SWR probably over 3 to one. One of my dipoles has a SWR at the top of 75 meters of approximately 4:1, and I occasionally venture up there, but my K3S with internal tuner does not complain and quickly matches it to about 1:1. Not ideal and this is not the way I usually build my antennas, but the loss is not too bad. If you can build a unun with approximately a 1:2 ratio this should solve your problem. If it does not cover all the way from 80 to 10 with low loss, I would not worry too much about say 10 and 12 meters now, since some loss, and/or lower power output should not be a problem with our sunspot situation. If you happen to have lots of 75 ohm cable, you could parallel two runs of exactly the same length, the pair would have a Z of 37.5 ohms, so nearly perfect if your actual antenna Z is in the vicinity of say 25 to 45 ohms. Not suggesting you spend much money on the coax, but if it is cheap or free, you could do this. Later if you change antennas you would have an extra coax run already in place. The power handling of the dual coax runs would be at least the same as a single run, and the loss could be either slightly higher or lower with the dual run depending upon whether the loss is I squared R, or due to the dielectric characteristics, but I would be surprised if the loss differed much at the HF frequencies. Just another idea to think about, not necessarily a recommendation. Rick KL7CW Sent from Mail for Windows 10 From josh at voodoolab.com Wed Apr 1 19:32:58 2020 From: josh at voodoolab.com (Josh Fiden) Date: Wed, 1 Apr 2020 16:32:58 -0700 Subject: [Elecraft] 75 ohm coax In-Reply-To: <20200401232309653@smtp.email-protect.gosecure.net> References: <20200401232309653@smtp.email-protect.gosecure.net> Message-ID: This all reminds me of the difference between when I was a young teen getting started as a ham vs now. As a kid I would put things together or throw em up. Only worried about it after it didn?t work. Nowadays, I plan & overthink things to death before getting anything accomplished. I prefer the old way. 73, Josh W6XU Sent from my mobile device > On Apr 1, 2020, at 4:20 PM, Frederick Dwight wrote: > > If you have 75 ohm coax, I would just try it. If the Z of the antenna is in fact around 35 ohms, the Z at the shack end may be close to 35 ohms on some bands, but on others the Z will be transposed to well over 100 ohms with an SWR probably over 3 to one. One of my dipoles has a SWR at the top of 75 meters of approximately 4:1, and I occasionally venture up there, but my K3S with internal tuner does not complain and quickly matches it to about 1:1. Not ideal and this is not the way I usually build my antennas, but the loss is not too bad. If you can build a unun with approximately a 1:2 ratio this should solve your problem. If it does not cover all the way from 80 to 10 with low loss, I would not worry too From KY5G at montac.com Wed Apr 1 19:47:59 2020 From: KY5G at montac.com (Clay Autery) Date: Wed, 1 Apr 2020 18:47:59 -0500 Subject: [Elecraft] VF Varies With Frequency In-Reply-To: <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> References: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> Message-ID: Hmmmm....? I'm seeing great variability in the Vf does/does not vary with F. This link says yes: https://owenduffy.net/transmissionline/concept/mvf/index.htm Other's say no... My "gut" says yes. Yea!? Now I have something to research in order to figure out how/why! My favorite kind of puzzle!? I'm guessing that not only can this be demonstrated mathematically one way or another, but also experimentally using say, my VNWA, sig generator, et al. 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 04/01/20 16:45, Mpridesti via Elecraft wrote: > Requested technical comment from a long established coaxial cable manufacturer on this topic. > > This was the response: > > The Vp is not measured at any frequency and is independent of frequency. The only variable in play is the dielectric constant. The Vp represents the speed at which a signal transmits along the cable as a % of the speed of air. Air/vacuum will be the fasted medium to use to transmit an RF signal. The thing is, air is usually not practical since there is nothing to support the center conductor, can be easily crushed and is susceptible to the ingress of moisture. > > We use foamed dielectrics and expanded tapes to get as close to air as possible. Vp will vary based on the specific dielectric used. The vast majority of our cables range in velocity of propagation from 76% to 86%. For a given cable, the Vp will likely not vary more that +/- 1% over it?s length but as I mentioned earlier, it would be best to use +/-2% for planning purposes. > > End response > > Regards, > > Mark, K1RX > > >> On Apr 1, 2020, at 1:43 PM, Jim Brown wrote: >> >> ?On 4/1/2020 7:58 AM, Don Wilhelm wrote: >>> When dealing with a length of transmission line, the use of the '468' factor should not be used - compute the actual wavelength and then apply the velocity factor. >> There is yet another variable -- VF varies with frequency. At low frequencies, it is lower (slower), increasing until it converges to the published value at VHF. For this reason, matching sections and stubs must be measured at or near the operating frequency with an analyzer or as a stub placed in line with a generator and receiver. They should be cut long, then trimmed so that the null in that generator/receiver circuit is heard, or the analzyer reads a short or open. >> >> How much is this variation? For typical transmission lines, it's on the order of 1% from 80M, a bit more for 160M as compared to the published value. If what you're building is a stub to kill harmonics, it's the difference between the CW and phone bands on 80M. >> >> 73, Jim K9YC From vk4tux at gmail.com Wed Apr 1 19:52:40 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 2 Apr 2020 09:52:40 +1000 Subject: [Elecraft] 75 ohm coax In-Reply-To: References: <20200401232309653@smtp.email-protect.gosecure.net> Message-ID: <77b41c67-6819-ce33-513d-81bc1b9c56b2@gmail.com> In old days hams fed 10:1 antennas with ladder line and did well. Just keep feedline loss to a minimum. I feed my apex high delta loops direct with a good toroid coax choke at feedpoint at bottom corner (low impedance) near the shack. Coax is short and lmr240, works great. I tested 2:1 & 4:1 baluns etc on previous advice and the result was not as good as a good direct feed with high impedance choke. Look out for vk4tux on FT8. On 2/4/20 9:32 am, Josh Fiden wrote: > This all reminds me of the difference between when I was a young teen getting started as a ham vs now. > > As a kid I would put things together or throw em up. Only worried about it after it didn?t work. Nowadays, I plan & overthink things to death before getting anything accomplished. I prefer the old way. > > 73, > Josh W6XU > > Sent from my mobile device > >> On Apr 1, 2020, at 4:20 PM, Frederick Dwight wrote: >> >> If you have 75 ohm coax, I would just try it. If the Z of the antenna is in fact around 35 ohms, the Z at the shack end may be close to 35 ohms on some bands, but on others the Z will be transposed to well over 100 ohms with an SWR probably over 3 to one. One of my dipoles has a SWR at the top of 75 meters of approximately 4:1, and I occasionally venture up there, but my K3S with internal tuner does not complain and quickly matches it to about 1:1. Not ideal and this is not the way I usually build my antennas, but the loss is not too bad. If you can build a unun with approximately a 1:2 ratio this should solve your problem. If it does not cover all the way from 80 to 10 with low loss, I would not worry too > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 wes_n7ws at triconet.org Wed Apr 1 19:54:56 2020 From: wes_n7ws at triconet.org (Wes) Date: Wed, 1 Apr 2020 16:54:56 -0700 Subject: [Elecraft] VF Varies With Frequency In-Reply-To: <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> References: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> Message-ID: <23fa5185-aa90-265c-842a-4009ff477e2c@triconet.org> I would not be buying any cable from them. Wes? N7WS On 4/1/2020 2:45 PM, Mpridesti via Elecraft wrote: > Requested technical comment from a long established coaxial cable manufacturer on this topic. > > This was the response: > > The Vp is not measured at any frequency and is independent of frequency. The only variable in play is the dielectric constant. The Vp represents the speed at which a signal transmits along the cable as a % of the speed of air. Air/vacuum will be the fasted medium to use to transmit an RF signal. The thing is, air is usually not practical since there is nothing to support the center conductor, can be easily crushed and is susceptible to the ingress of moisture. > > We use foamed dielectrics and expanded tapes to get as close to air as possible. Vp will vary based on the specific dielectric used. The vast majority of our cables range in velocity of propagation from 76% to 86%. For a given cable, the Vp will likely not vary more that +/- 1% over it?s length but as I mentioned earlier, it would be best to use +/-2% for planning purposes. > > End response > > Regards, > > Mark, K1RX > From jim at audiosystemsgroup.com Wed Apr 1 20:59:17 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 1 Apr 2020 17:59:17 -0700 Subject: [Elecraft] VF Varies With Frequency In-Reply-To: <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> References: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> <2D545821-38E5-470B-800B-E0AB9502AC4A@yahoo.com> Message-ID: Hi Mark, Whoever you talked to needs to go back to school and study Maxwell's equations. He is WRONG! http://k9yc.com/TransLines-LowFreq.pdf http://k9yc.com/Coax-Stubs.pdf 73, Jim K9YC On 4/1/2020 2:45 PM, Mpridesti wrote: > Requested technical comment from a long established coaxial cable > manufacturer on this topic. > > This was the response: > > ? ?The Vp is not measured at any frequency and is independent of > frequency. The only variable in play is the dielectric constant. The Vp > represents the speed at which a signal transmits along the cable as a % > of the speed of air. Air/vacuum will be the fasted medium to use to > transmit an RF signal. The thing is, air is usually not practical since > there is nothing to support the center conductor, can be easily crushed > and is susceptible to the ingress of moisture. > > ??? We use foamed dielectrics and expanded tapes to get as close to air > as possible. Vp will vary based on the specific dielectric used. The > vast majority of our cables range in velocity of propagation from 76% to > 86%. For a given cable, the Vp will likely not vary more that +/- 1% > over it?s length but as I mentioned earlier, it would be best to use > +/-2% for planning purposes. > > > End response > > > Regards, > > Mark, K1RX > > >> On Apr 1, 2020, at 1:43 PM, Jim Brown wrote: >> >> ?On 4/1/2020 7:58 AM, Don Wilhelm wrote: >>> When dealing with a length of transmission line, the use of the '468' >>> factor should not be used - compute the actual wavelength and then >>> apply the velocity factor. >> >> There is yet another variable -- VF varies with frequency. At low >> frequencies, it is lower (slower), increasing until it converges to >> the published value at VHF. For this reason, matching sections and >> stubs must be measured at or near the operating frequency with an >> analyzer or as a stub placed in line with a generator and receiver. >> They should be cut long, then trimmed so that the null in that >> generator/receiver circuit is heard, or the analzyer reads a short or >> open. >> >> How much is this variation? For typical transmission lines, it's on >> the order of 1% from 80M, a bit more for 160M as compared to the >> published value. If what you're building is a stub to kill harmonics, >> it's the difference between the CW and phone bands on 80M. >> >> 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 mpridesti at yahoo.com From donwilh at embarqmail.com Wed Apr 1 21:37:05 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Wed, 1 Apr 2020 21:37:05 -0400 Subject: [Elecraft] 75 ohm coax In-Reply-To: <4B2AED56-5C0D-49AF-B98A-4AAC93998790@gmail.com> References: <4B2AED56-5C0D-49AF-B98A-4AAC93998790@gmail.com> Message-ID: The voltage allowable on 75 ohm 1/2 inch hardline far exceeds the voltage allowable for RG-213. No problem at the limit of 1500 watts for the ham bands. Even RG-6 will withstand 1500 watts with no problems. 73, Don W3FPR On 4/1/2020 4:38 PM, Gmail wrote: > Careful, 75 ohms was picked for cable TV receiving Coax because it was lower loss then 50 ohms but it could not handle high power as 50 ohms could. 50 ohms is a power, loss compromise. 35 ohms For high power high loss, 50 ohms compromise, 75 ohms low loss low power. > Ray > W8LYJ > From carl at n8vz.com Wed Apr 1 21:50:31 2020 From: carl at n8vz.com (=?utf-8?Q?Carl_J=C3=B3n_Denbow?=) Date: Wed, 1 Apr 2020 21:50:31 -0400 Subject: [Elecraft] WTB KDVR3 In-Reply-To: References: Message-ID: <7C58A46A-0807-41BA-95B1-3763329CF044@n8vz.com> I received a response to this query and have been able to secure a KDVR3. Great list! 73 de Carl N8VZ Sent from my iPhone ================================ Carl J?n Denbow, N8VZ 17 Coventry Lane Athens, Ohio 45701-3718 carl at n8vz.com www.n8vz.com EM89wh IRLP 4533 Echolink 116070 PSK and JT65 Forever! ================================ > On Mar 31, 2020, at 8:41 PM, Carl J?n Denbow wrote: > > ?I would like to buy a KDVR3 for my K3. Elecraft is not selling them anymore. If anyone has one that they would sell, please contact me off list. Thanks. 73 de Carl N8VZ > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n8vz at qth.com From jim at audiosystemsgroup.com Wed Apr 1 23:09:41 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 1 Apr 2020 20:09:41 -0700 Subject: [Elecraft] 75 ohm coax In-Reply-To: References: <4B2AED56-5C0D-49AF-B98A-4AAC93998790@gmail.com> Message-ID: On 4/1/2020 6:37 PM, Don Wilhelm wrote: > Even RG-6 will withstand 1500 watts with no problems. RG6 is a VERY generic description of coax, and there are probably 100 very different cables carrying that designation. We are most familiar with those manufactured for the CATV industry, all optimized for low weight, low cost, low loss at VHF/UHF, and very low power. But these cables mostly have CCS center (copper coated steel), Al foil, Al braid shields. This causes them to be rather lossy at low RF. There ARE a few more far more robust RG6 cables designed for transmitting and for analog video (remember that?). I have some -- double copper braid, solid copper center. What I have is labeled Pasternak, but I've seen a very similar RG6 in the Belden catalog. 73, Jim K9YC From k2vco.vic at gmail.com Thu Apr 2 02:00:53 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Thu, 2 Apr 2020 09:00:53 +0300 Subject: [Elecraft] VF Varies With Frequency In-Reply-To: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> References: <41255535-2108-8975-c66f-d27daea522c9@audiosystemsgroup.com> Message-ID: <0C256B6A-B3DB-415F-9B1D-4D377CCC0F6F@gmail.com> I put a shorted 1/4 wave stub ? about a foot long on 144 MHz ? on the coax to my 2m beam. The beam is right under my HF antenna, and thanks to the stub I can run 1.3 kW on 40-10m with absolutely no interference to the 2m rig, and no effect on 2m SWR. Before I had the stub, hitting the key on the HF rig caused the 2m transceiver to reboot. The stub is near the radio, although I don?t know if that matters. I just used the published VF for the coax to figure the length. To be fair, I should mention that the 2m beam is vertically polarized and the HF antenna is horizontal. But they are just a few feet apart. Victor 4X6GP > On 1 Apr 2020, at 20:38, Jim Brown wrote: > > ?On 4/1/2020 7:58 AM, Don Wilhelm wrote: >> When dealing with a length of transmission line, the use of the '468' factor should not be used - compute the actual wavelength and then apply the velocity factor. > > There is yet another variable -- VF varies with frequency. At low frequencies, it is lower (slower), increasing until it converges to the published value at VHF. For this reason, matching sections and stubs must be measured at or near the operating frequency with an analyzer or as a stub placed in line with a generator and receiver. They should be cut long, then trimmed so that the null in that generator/receiver circuit is heard, or the analzyer reads a short or open. > > How much is this variation? For typical transmission lines, it's on the order of 1% from 80M, a bit more for 160M as compared to the published value. If what you're building is a stub to kill harmonics, it's the difference between the CW and phone bands on 80M. > > 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 k2vco.vic at gmail.com From w4bws1 at gmail.com Thu Apr 2 06:58:14 2020 From: w4bws1 at gmail.com (Don Sanders) Date: Thu, 2 Apr 2020 06:58:14 -0400 Subject: [Elecraft] 75 ohm coax In-Reply-To: References: <4B2AED56-5C0D-49AF-B98A-4AAC93998790@gmail.com> Message-ID: I have used TV RG6 for over 30 years. Usually 50 feet or less and it handled the output of my SB200 amp well. In Ecuador that was the only coax readily available and it worked well. I recently bought a roll of 250 feet at Walmart for $30. Checked the loss of 100 feet and was about 1.5 dB at 145 MHz. Not as good as open wire feedline but for coax very workable. Cannot beat the price. I also have used the "F" connectors up to about 600 watts with no problem and now find BNC conn at Home Depot made for RG6 Coax. There is a lot of discussion about using RG6, usually from those who have not used it but have heard it is not good. It is definitely better than RG174 but heavier. I have been fortunate to have found good RG6 but I always test it before use. It works well in an ugly balun also at HF. I usually use the 25 foot lengths found already made with connectors on each end. I have used two runs in parallel, center conductors of course, to feed a doublet for multiband HF. 50 feet lengths feed my 6 and 2 meter verticals. Dr. Don W4BWS God Bless All Ham Radio does not make the world go round. Ham Radio is what makes the ride worthwhile. On Wed, Apr 1, 2020 at 9:38 PM Don Wilhelm wrote: > The voltage allowable on 75 ohm 1/2 inch hardline far exceeds the > voltage allowable for RG-213. No problem at the limit of 1500 watts for > the ham bands. > > Even RG-6 will withstand 1500 watts with no problems. > > 73, > Don W3FPR > > On 4/1/2020 4:38 PM, Gmail wrote: > > Careful, 75 ohms was picked for cable TV receiving Coax because it was > lower loss then 50 ohms but it could not handle high power as 50 ohms > could. 50 ohms is a power, loss compromise. 35 ohms For high power high > loss, 50 ohms compromise, 75 ohms low loss low power. > > Ray > > W8LYJ > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w4bws1 at gmail.com > From n1nk at cox.net Thu Apr 2 09:12:42 2020 From: n1nk at cox.net (Jim Spears) Date: Thu, 2 Apr 2020 09:12:42 -0400 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only Message-ID: <021201d608f0$660b2cf0$322186d0$@cox.net> I am helping a friend upgrade an older K3/100 (s/n 798) after he recently acquired it from estate of a SK. I have brought firmware forward one or two versions and installed the KIO3B board set. The radio has main RX only and the KSYN3A upgrade. It does have the KANT3 antenna tuner. I ran the 5 watt TX Calibration and it failed due to high swr on 6m only. I thought this curious so ran this test against one of my K3S with the same high quality dummy load and cable. It passed. I also scanned the dummy load with my RigExpert and it is flat to at least 2m. We would appreciate any suggestions as to how to further troubleshoot this issue. My friend says that 6m is not important to him - today - but tomorrow might be a different story. It seems reasonable to us that so long as we are working on it, we should leave it fully operational. I have not looked to see if the front panel to main board pin upgrade or any other hardware mod has been performed. Jim N1NK From c-hawley at illinois.edu Thu Apr 2 10:01:25 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Thu, 2 Apr 2020 14:01:25 +0000 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only In-Reply-To: <021201d608f0$660b2cf0$322186d0$@cox.net> References: <021201d608f0$660b2cf0$322186d0$@cox.net> Message-ID: I had the same issue with a brand new K3S. It failed a couple times and then it passed once...so I left it there. I have not been on 6M but I assume it will work fine. I do feel apprehensive though about running the cal again. Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Jim Spears Sent: Thursday, April 2, 2020 8:12 AM To: elecraft at mailman.qth.net Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only I am helping a friend upgrade an older K3/100 (s/n 798) after he recently acquired it from estate of a SK. I have brought firmware forward one or two versions and installed the KIO3B board set. The radio has main RX only and the KSYN3A upgrade. It does have the KANT3 antenna tuner. I ran the 5 watt TX Calibration and it failed due to high swr on 6m only. I thought this curious so ran this test against one of my K3S with the same high quality dummy load and cable. It passed. I also scanned the dummy load with my RigExpert and it is flat to at least 2m. We would appreciate any suggestions as to how to further troubleshoot this issue. My friend says that 6m is not important to him - today - but tomorrow might be a different story. It seems reasonable to us that so long as we are working on it, we should leave it fully operational. I have not looked to see if the front panel to main board pin upgrade or any other hardware mod has been performed. Jim N1NK ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 gkidder at ilstu.edu Thu Apr 2 10:08:16 2020 From: gkidder at ilstu.edu (George Kidder) Date: Thu, 2 Apr 2020 10:08:16 -0400 Subject: [Elecraft] Transverter wanted Message-ID: Anyone have a XV-144 transverter for sale, unbuilt or in good operating condition?? Contact me direct. Thanks - George From rmcgraw at blomand.net Thu Apr 2 11:26:37 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 2 Apr 2020 10:26:37 -0500 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only In-Reply-To: References: <021201d608f0$660b2cf0$322186d0$@cox.net> Message-ID: <3ad0fa86-92f8-483d-7a71-f697192f137e@blomand.net> I perform "radio maintenance" about every 2nd month or so. That includes check frequency {adjust REF CAL as necessary}, check power output on all bands {run TX Gain Cal as necessary}, receiver sensitivity {run RX Gain cal as necessary} and then perform a full back up of the configuration data.??? At the same time, I'm amazed at how stable and accurate the radio maintains in all regards. I've not experienced any failures of the TX gain calibration except when the KPA3A had issues.? That was replaced with a Rev E unit and no problems observed since then. 73 Bob, K4TAX On 4/2/2020 9:01 AM, hawley, charles j jr wrote: > I had the same issue with a brand new K3S. It failed a couple times and then it passed once...so I left it there. I have not been on 6M but I assume it will work fine. I do feel apprehensive though about running the cal again. > > Chuck Hawley > c-hawley at illinois.edu > > Amateur Radio, KE9UW > aka Jack, BMW Motorcycles > > ________________________________ > From: elecraft-bounces at mailman.qth.net on behalf of Jim Spears > Sent: Thursday, April 2, 2020 8:12 AM > To: elecraft at mailman.qth.net > Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only > > I am helping a friend upgrade an older K3/100 (s/n 798) after he recently > acquired it from estate of a SK. I have brought firmware forward one or two > versions and installed the KIO3B board set. The radio has main RX only and > the KSYN3A upgrade. It does have the KANT3 antenna tuner. > > > > I ran the 5 watt TX Calibration and it failed due to high swr on 6m only. I > thought this curious so ran this test against one of my K3S with the same > high quality dummy load and cable. It passed. I also scanned the dummy > load with my RigExpert and it is flat to at least 2m. > > > > We would appreciate any suggestions as to how to further troubleshoot this > issue. My friend says that 6m is not important to him - today - but > tomorrow might be a different story. It seems reasonable to us that so long > as we are working on it, we should leave it fully operational. > > > > I have not looked to see if the front panel to main board pin upgrade or any > other hardware mod has been performed. > > > > Jim > > N1NK > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rmcgraw at blomand.net > From 1lasportsman at cox.net Thu Apr 2 12:41:01 2020 From: 1lasportsman at cox.net (1lasportsman 1lasportsman) Date: Thu, 2 Apr 2020 11:41:01 -0500 (CDT) Subject: [Elecraft] kx3 utility Message-ID: <339612124.7129.1585845661507@myemail.cox.net> I am trying to use the utility to see radio I am getting this error message KX3 MCU revision 02.90 rs232 speed 38400 bit/s IT worked before but I get this now any ideas the radio works fine but no utility with computer .I tried this on 2 computers same error. Bill WF9m From jackbrindle at me.com Thu Apr 2 12:54:11 2020 From: jackbrindle at me.com (Jack Brindle) Date: Thu, 2 Apr 2020 09:54:11 -0700 Subject: [Elecraft] kx3 utility In-Reply-To: <339612124.7129.1585845661507@myemail.cox.net> References: <339612124.7129.1585845661507@myemail.cox.net> Message-ID: The utility is telling you that it is communicating with your KX3 at 38400 bits/sec. The KX3 has firmware revision 2.90. This is not an error message. It appears to be working just fine. 73! Jack, W6FB > On Apr 2, 2020, at 9:41 AM, 1lasportsman 1lasportsman <1lasportsman at cox.net> wrote: > > I am trying to use the utility to see radio > > I am getting this error message > > KX3 MCU revision 02.90 rs232 speed 38400 bit/s > > IT worked before but I get this now > > any ideas the radio works fine but no utility with computer .I tried this on 2 computers same error. > > Bill > > WF9m > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 1lasportsman at cox.net Thu Apr 2 13:07:28 2020 From: 1lasportsman at cox.net (1lasportsman 1lasportsman) Date: Thu, 2 Apr 2020 12:07:28 -0500 (CDT) Subject: [Elecraft] kx3 utility In-Reply-To: References: <339612124.7129.1585845661507@myemail.cox.net> Message-ID: <1276016424.7950.1585847248207@myemail.cox.net> I am using the KXusb cable from computer and acc1 plug on radio but it does not connect with radio. Do I need to change the radio speed to 38400 or is it automatic? If so looked in manual and did not see how Bill > On April 2, 2020 at 11:54 AM Jack Brindle wrote: > > > The utility is telling you that it is communicating with your KX3 at 38400 bits/sec. The KX3 has firmware revision 2.90. > This is not an error message. It appears to be working just fine. > > 73! > Jack, W6FB > > > > On Apr 2, 2020, at 9:41 AM, 1lasportsman 1lasportsman <1lasportsman at cox.net mailto:1lasportsman at cox.net > wrote: > > > > I am trying to use the utility to see radio > > > > I am getting this error message > > > > KX3 MCU revision 02.90 rs232 speed 38400 bit/s > > > > IT worked before but I get this now > > > > any ideas the radio works fine but no utility with computer .I tried this on 2 computers same error. > > > > Bill > > > > WF9m > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net mailto:Elecraft at mailman.qth.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 mailto:jackbrindle at me.com > > > > > From 1lasportsman at cox.net Thu Apr 2 13:16:46 2020 From: 1lasportsman at cox.net (1lasportsman 1lasportsman) Date: Thu, 2 Apr 2020 12:16:46 -0500 (CDT) Subject: [Elecraft] kx3 utility In-Reply-To: <1276016424.7950.1585847248207@myemail.cox.net> References: <339612124.7129.1585845661507@myemail.cox.net> <1276016424.7950.1585847248207@myemail.cox.net> Message-ID: <1081729541.8802.1585847806724@myemail.cox.net> The magic computer tech fixed it. Thanks for the help. Unplugged the cable and turned all off then turned on and connected cable again and it worked. Thanks to all that replied. Bill WF9M > On April 2, 2020 at 12:07 PM 1lasportsman 1lasportsman <1lasportsman at cox.net mailto:1lasportsman at cox.net > wrote: > > > I am using the KXusb cable from computer and acc1 plug on radio but it does not connect with radio. > Do I need to change the radio speed to 38400 or is it automatic? > If so looked in manual and did not see how > Bill > > > > On April 2, 2020 at 11:54 AM Jack Brindle wrote: > > > > > > The utility is telling you that it is communicating with your KX3 at 38400 bits/sec. The KX3 has firmware revision 2.90. > > This is not an error message. It appears to be working just fine. > > > > 73! > > Jack, W6FB > > > > On Apr 2, 2020, at 9:41 AM, 1lasportsman 1lasportsman <1lasportsman at cox.net mailto:1lasportsman at cox.net mailto:1lasportsman at cox.net mailto:1lasportsman at cox.net > wrote: > > > > > > > I am trying to use the utility to see radio > > > > > > I am getting this error message > > > > > > KX3 MCU revision 02.90 rs232 speed 38400 bit/s > > > > > > IT worked before but I get this now > > > > > > any ideas the radio works fine but no utility with computer .I tried this on 2 computers same error. > > > > > > Bill > > > > > > WF9m > > > ______________________________________________________________ > > > Elecraft mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: http://mailman.qth.net/mmfaq.htm > > > Post: mailto:Elecraft at mailman.qth.net mailto:Elecraft at mailman.qth.net mailto:Elecraft at mailman.qth.net mailto:Elecraft at mailman.qth.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 mailto:jackbrindle at me.com mailto:jackbrindle at me.com mailto: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 mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to 1lasportsman at cox.net mailto:1lasportsman at cox.net > From graziano at roccon.com Thu Apr 2 13:50:09 2020 From: graziano at roccon.com (Graziano Roccon (IW2NOY)) Date: Thu, 02 Apr 2020 19:50:09 +0200 Subject: [Elecraft] =?utf-8?q?Elecraft_K3s_-_RX_OU_ANT_and_Colibr=C3=AC_na?= =?utf-8?q?no_sdr?= In-Reply-To: <1276016424.7950.1585847248207@myemail.cox.net> References: <339612124.7129.1585845661507@myemail.cox.net> <1276016424.7950.1585847248207@myemail.cox.net> Message-ID: <85d7cdcd1206ecf1bf757f3e83c5d209@roccon.com> Hello, i ordered a Colibr? Nano (https://eesdr.com/en/products-en/receivers-en/colibrinano-en) and i am thinkg to connect the Colibr? antenna through the RX ANT OT of the K3s tu use the colibr? and his software like a panadapter for the K3s. The colibr? can't accept "IF OUT", so i will use RX ANT OUT from XV3B to give antenna signal to the Colibr?. The Colibr? is one the best SDR (usb) out there with a sample rate of max 3mhz at 16 bit and 768 khz at 24 bit, the dedicated software ExpertSDR2 is fantastic anche can used with SDC to have cw skimmer spots and DX cluster spots on the panadapter. I want to use the Colibr? only like a panadapter and use the K3s to transmit, syncing the two radio frequncies. I would like to know if there are know problem to use this configuration, especially when i will go in TX with the K3s. Maybe somebody did it this before me. There is a protection system that disconnect RX ANT OUT when the K3s go in TX ? There is something to configure in the menu ? Simply, there is a risk for the safeness of the Colibr? connect to the antenna RX OUT ANT ? I wouldn't burn the Colibr? with RF or RFI coming from the radio. Any help would be appreciated. Thanks a lot, Graziano IW2NOY From k3ndm at comcast.net Thu Apr 2 14:56:00 2020 From: k3ndm at comcast.net (Barry LaZar) Date: Thu, 2 Apr 2020 14:56:00 -0400 Subject: [Elecraft] =?utf-8?q?Elecraft_K3s_-_RX_OU_ANT_and_Colibr=C3=AC_na?= =?utf-8?q?no_sdr?= In-Reply-To: <85d7cdcd1206ecf1bf757f3e83c5d209@roccon.com> References: <339612124.7129.1585845661507@myemail.cox.net> <1276016424.7950.1585847248207@myemail.cox.net> <85d7cdcd1206ecf1bf757f3e83c5d209@roccon.com> Message-ID: If all you want to do is create a panadapter, I suggest that you use the IF out of your K3s. I do that and it works nicely. This obviates the need for SDR protection while transmitting. 73 Barry K3NDM On Thu, Apr 2, 2020, 1:52 PM Graziano Roccon (IW2NOY) wrote: > Hello, > > i ordered a Colibr? Nano > (https://eesdr.com/en/products-en/receivers-en/colibrinano-en) > and i am thinkg to connect the Colibr? antenna through the RX ANT OT of > the K3s tu use the colibr? and his software like a panadapter for the > K3s. > The colibr? can't accept "IF OUT", so i will use RX ANT OUT from XV3B to > give antenna signal to the Colibr?. > The Colibr? is one the best SDR (usb) out there with a sample rate of > max 3mhz at 16 bit and 768 khz at 24 bit, the dedicated software > ExpertSDR2 is fantastic anche can used with SDC to have cw skimmer spots > and DX cluster spots on the panadapter. > > > I want to use the Colibr? only like a panadapter and use the K3s to > transmit, syncing the two radio frequncies. > > I would like to know if there are know problem to use this > configuration, especially when i will go in TX with the K3s. > Maybe somebody did it this before me. > There is a protection system that disconnect RX ANT OUT when the K3s go > in TX ? > There is something to configure in the menu ? > Simply, there is a risk for the safeness of the Colibr? connect to the > antenna RX OUT ANT ? > I wouldn't burn the Colibr? with RF or RFI coming from the radio. > > Any help would be appreciated. > > > Thanks a lot, Graziano IW2NOY > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 From kwidelitz at gmail.com Thu Apr 2 16:41:55 2020 From: kwidelitz at gmail.com (Ken Widelitz) Date: Thu, 2 Apr 2020 13:41:55 -0700 Subject: [Elecraft] Power Issue Message-ID: When I press the Power button to turn off one of my K3s, the LCD screen stays lit but shows no information. The P3, powered by the 12v outlet at the back of the K3 does go off. Of course, if I turn the power supply off, the LCD screen goes dark. However, when I turn the power supply back on, the rig comes back on also. 73, Ken, K6LA / VY2TT From n6tv at arrl.net Thu Apr 2 17:20:13 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Thu, 2 Apr 2020 14:20:13 -0700 Subject: [Elecraft] Transceiver Test Bed at W3LPL In-Reply-To: References: <5aa66177-9c40-e2ed-eb4b-88932571c2a9@audiosystemsgroup.com> <705728782.3779675.1585683583999.JavaMail.root@starpower.net> Message-ID: On Tue, Mar 31, 2020 at 12:50 PM Barry wrote: > I can't speak to the other radios, but you do need to fiddle the > values of the AGC on the K3s to get the best out of the radios. For review, my recommended K3 menu settings and knob position for maximum reduction of receiver "mush" is documented in this post from Feb. 2017, and still applies today: http://elecraft.365791.n2.nabble.com/K3-Receiver-mush-tp7627277p7627323.html 73, Bob, N6TV From donovanf at starpower.net Thu Apr 2 17:49:51 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Thu, 2 Apr 2020 17:49:51 -0400 (EDT) Subject: [Elecraft] Transceiver Test Bed at W3LPL In-Reply-To: Message-ID: <697168366.4837579.1585864191434.JavaMail.root@starpower.net> Thanks Bob 73 Frank W3LPL ----- Original Message ----- From: "Bob Wilson, N6TV" To: "Elecraft Reflector" Cc: "Frank Donovan, W3LPL" Sent: Thursday, April 2, 2020 9:20:13 PM Subject: Re: [Elecraft] Transceiver Test Bed at W3LPL On Tue, Mar 31, 2020 at 12:50 PM Barry < barrylazar2 at gmail.com > wrote: I can't speak to the other radios, but you do need to fiddle the values of the AGC on the K3s to get the best out of the radios. For review, my recommended K3 menu settings and knob position for maximum reduction of receiver "mush" is documented in this post from Feb. 2017, and still applies today: http://elecraft.365791.n2.nabble.com/K3-Receiver-mush-tp7627277p7627323.html 73, Bob, N6TV From no9e at arrl.net Thu Apr 2 22:58:49 2020 From: no9e at arrl.net (Ignacy) Date: Thu, 2 Apr 2020 19:58:49 -0700 (MST) Subject: [Elecraft] 75 ohm coax In-Reply-To: <77b41c67-6819-ce33-513d-81bc1b9c56b2@gmail.com> References: <20200401232309653@smtp.email-protect.gosecure.net> <77b41c67-6819-ce33-513d-81bc1b9c56b2@gmail.com> Message-ID: <1585882729752-0.post@n2.nabble.com> The plus of RG6 is low price, less than 10c a foot. In receive applications, they seem to be lasting forever. In transmit too but small nuisances are necessity to use a tuner for low SWR antennas and nonstandard connectors. But running two in parallel does not make any sense. Half a year ago I found Rg6's 50 Ohm equivalent on ebay. Altelix AX240 for $99/1000ft. Measured parameters same as LMR240. The plus of cheap and good 1000-ft roll (with crimp connectors that can be attached in 30 sec) is that the coax can be cut as needed, with no worries about cost. Ignacy NO9E -- Sent from: http://elecraft.365791.n2.nabble.com/ From rmcgraw at blomand.net Thu Apr 2 23:37:13 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 2 Apr 2020 22:37:13 -0500 Subject: [Elecraft] 75 ohm coax In-Reply-To: <1585882729752-0.post@n2.nabble.com> References: <1585882729752-0.post@n2.nabble.com> Message-ID: <5017F8D4-C79F-4A8E-9723-2C4664DB6021@blomand.net> The same PL-259 reducers for RG-8X works for RG-6. Same for BNC connectors. Bob, K4TAX Sent from my iPhone > On Apr 2, 2020, at 10:13 PM, Ignacy wrote: > > ?The plus of RG6 is low price, less than 10c a foot. In receive applications, > they seem to be lasting forever. In transmit too but small nuisances are > necessity to use a tuner for low SWR antennas and nonstandard connectors. > But running two in parallel does not make any sense. > > Half a year ago I found Rg6's 50 Ohm equivalent on ebay. Altelix AX240 for > $99/1000ft. Measured parameters same as LMR240. The plus of cheap and good > 1000-ft roll (with crimp connectors that can be attached in 30 sec) is that > the coax can be cut as needed, with no worries about cost. > > Ignacy NO9E > > > > -- > 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 rmcgraw at blomand.net > From kl7cw at mtaonline.net Fri Apr 3 02:08:54 2020 From: kl7cw at mtaonline.net (Frederick Dwight) Date: Thu, 2 Apr 2020 22:08:54 -0800 Subject: [Elecraft] 75 ohm coax Message-ID: <20200403061126785@smtp.email-protect.gosecure.net> If your 75 ohm coax has a steel/copper coated center conductor, be sure to test it for loss on the lowest frequency band you will use. I experimented with a steel core 160 meter antenna and found it had some additional loss and probably due to the inductance it could be shorter for resonance (10 % perhaps ??) so I abandoned the idea. Never noticed the effect on higher frequencies. Sent from Mail for Windows 10 From ua9cdc at gmail.com Fri Apr 3 10:53:55 2020 From: ua9cdc at gmail.com (Igor Sokolov) Date: Fri, 3 Apr 2020 19:53:55 +0500 Subject: [Elecraft] Transceiver Test Bed at W3LPL In-Reply-To: <1150194946.3735317.1585676689169.JavaMail.root@starpower.net> References: <1150194946.3735317.1585676689169.JavaMail.root@starpower.net> Message-ID: Frank, you can add different headphones on Radio#4 to the mix :) Also on SSB try recordings of BY stations to make it more difficult. 73, Igor UA9CDC 31.03.2020 22:44, donovanf at starpower.net ?????: > > > During the Coronavirus crisis many of us have much more time than > usual for serious technical experimentation and testing. > > I'm building a transceiver test bed and I'll regularly report the progress > of my test setup, procedures and results. The intent of my test bed > is to document the transmitter and receiver performance of modern > transceivers in the intense QRM environment encountered by contesters. > My test bed will not be used to duplicate technical tests such as sensitivity > and dynamic range that are well documented by other expert testers. > > I welcome constructive comments about my test bed, test procedures and > results. > > Hopefully other technically inclined hams will develop similar test beds > so we can compare our test procedures and results. I will share my initial > test results prior to availability of the Elecraft K4. > > Test Description: > > Transceivers #1 and #2 will be QRM generators using two K3 transceivers > with DVRs and stored Morse messages feeding Array Solutions Powermaster > digital wattmeters and individual dummy loads. The QRM generator > transceivers will use various frequencies very close to the frequency of > transceiver #3. The DVRs and CW message memories in the QRM > generator transceivers will store various voice and Morse messages > which will change as the test procedures evolve. The power levels and > frequencies of the QRM generator transceivers will be varied in accordance > with written test procedures. > > Transceivers #3 and #4 will be the transceivers under test. > > Transceiver #3 will be the transmitter-under-test feeding an Array Solutions > Powermaster digital wattmeter and dummy load. Initially they will be > my K3 and FTdx5000 transceivers and my Heil and ModMic microphones. > Transmitter #3 will generate call signs and contest exchanges to be transcribed > by operators listening to transceiver #4. The frequencies, power level, > callsigns, contest exchanges, microphones and operator controllable settings > (e.g., compression and equalization) used by transceiver #3 will be varied in > accordance with written test procedures. > > Transceiver #4 will be the receiver-under-test connected to a dummy load. > Initially they will be my K3 and FTdx5000 transceivers. The callsigns > and contest exchanges transmitted by transceiver #3 will not be known to > the operator transcribing the audio heard from transceiver #4. A variety of > operators will be invited to transcribe the callsigns and contest exchanges > they hear on this transceiver. > > 73 > Frank > W3LPL > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ua9cdc at gmail.com From donovanf at starpower.net Fri Apr 3 11:08:29 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 3 Apr 2020 11:08:29 -0400 (EDT) Subject: [Elecraft] Transceiver Test Bed at W3LPL In-Reply-To: Message-ID: <176490072.5084605.1585926509524.JavaMail.root@starpower.net> Hi Igor, Very good ideas! Thanks 73 Frank W3LPL ----- Original Message ----- From: "Igor Sokolov" To: elecraft at mailman.qth.net Sent: Friday, April 3, 2020 2:53:55 PM Subject: Re: [Elecraft] Transceiver Test Bed at W3LPL Frank, you can add different headphones on Radio#4 to the mix :) Also on SSB try recordings of BY stations to make it more difficult. 73, Igor UA9CDC 31.03.2020 22:44, donovanf at starpower.net ?????: > > > During the Coronavirus crisis many of us have much more time than > usual for serious technical experimentation and testing. > > I'm building a transceiver test bed and I'll regularly report the progress > of my test setup, procedures and results. The intent of my test bed > is to document the transmitter and receiver performance of modern > transceivers in the intense QRM environment encountered by contesters. > My test bed will not be used to duplicate technical tests such as sensitivity > and dynamic range that are well documented by other expert testers. > > I welcome constructive comments about my test bed, test procedures and > results. > > Hopefully other technically inclined hams will develop similar test beds > so we can compare our test procedures and results. I will share my initial > test results prior to availability of the Elecraft K4. > > Test Description: > > Transceivers #1 and #2 will be QRM generators using two K3 transceivers > with DVRs and stored Morse messages feeding Array Solutions Powermaster > digital wattmeters and individual dummy loads. The QRM generator > transceivers will use various frequencies very close to the frequency of > transceiver #3. The DVRs and CW message memories in the QRM > generator transceivers will store various voice and Morse messages > which will change as the test procedures evolve. The power levels and > frequencies of the QRM generator transceivers will be varied in accordance > with written test procedures. > > Transceivers #3 and #4 will be the transceivers under test. > > Transceiver #3 will be the transmitter-under-test feeding an Array Solutions > Powermaster digital wattmeter and dummy load. Initially they will be > my K3 and FTdx5000 transceivers and my Heil and ModMic microphones. > Transmitter #3 will generate call signs and contest exchanges to be transcribed > by operators listening to transceiver #4. The frequencies, power level, > callsigns, contest exchanges, microphones and operator controllable settings > (e.g., compression and equalization) used by transceiver #3 will be varied in > accordance with written test procedures. > > Transceiver #4 will be the receiver-under-test connected to a dummy load. > Initially they will be my K3 and FTdx5000 transceivers. The callsigns > and contest exchanges transmitted by transceiver #3 will not be known to > the operator transcribing the audio heard from transceiver #4. A variety of > operators will be invited to transcribe the callsigns and contest exchanges > they hear on this transceiver. > > 73 > Frank > W3LPL > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ua9cdc 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 k2asp at kanafi.org Fri Apr 3 11:45:37 2020 From: k2asp at kanafi.org (Phil Kane) Date: Fri, 3 Apr 2020 08:45:37 -0700 Subject: [Elecraft] 75 ohm coax In-Reply-To: <1585882729752-0.post@n2.nabble.com> References: <20200401232309653@smtp.email-protect.gosecure.net> <77b41c67-6819-ce33-513d-81bc1b9c56b2@gmail.com> <1585882729752-0.post@n2.nabble.com> Message-ID: <58843fc9-8f90-5b08-c303-ce88ea511e1f@kanafi.org> On 4/2/2020 7:58 PM, Ignacy wrote: > In transmit too but small nuisances are > necessity to use a tuner for low SWR antennas and nonstandard connectors. It depends what you regard as "standard". The TV/CATV "standard" are F-connectors, available almost everywhere the cable is retailed. There are 75-ohm BNC connectors available. When I ran a TV signal measurements unit decades ago, we had lots of 75-ohm cables with BNCs on them and we painted a red ring around the connector body to distinguish them from 50-ohm BNCs. "I love working with standards because there are so many to choose from" > But running two in parallel does not make any sense. Yes it foes if you want a shielded balanced line. Just disregard the losses and impedance mismatches. 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 Fri Apr 3 11:51:49 2020 From: k2asp at kanafi.org (Phil Kane) Date: Fri, 3 Apr 2020 08:51:49 -0700 Subject: [Elecraft] 75 ohm coax In-Reply-To: <5017F8D4-C79F-4A8E-9723-2C4664DB6021@blomand.net> References: <1585882729752-0.post@n2.nabble.com> <5017F8D4-C79F-4A8E-9723-2C4664DB6021@blomand.net> Message-ID: <524e9db4-cd14-934a-c11f-90338481a879@kanafi.org> On 4/2/2020 8:37 PM, Bob McGraw K4TAX wrote: > The same PL-259 reducers for RG-8X works for RG-6. Same for BNC connectors. The center conductor "pins" for 75-ohm BNCs are of a different size as compared to 50-ohm BNCs,. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From anyone1545 at gmail.com Fri Apr 3 12:12:00 2020 From: anyone1545 at gmail.com (Gmail) Date: Fri, 3 Apr 2020 10:12:00 -0600 Subject: [Elecraft] 75ohm coax Message-ID: <14090DE7-65B2-4534-BE78-1FC85D3BCFF6@gmail.com> In addition to voltage breakdown, thermal burnout is part of the coax power handling spec. http://cablesondemandblog.com/wordpress1/2014/03/06/whats-the-difference-between-50-ohm-and-75-ohm-coaxial-cable/ Ray W8LYJ Sent from my iPad From tony.kaz at verizon.net Fri Apr 3 13:31:45 2020 From: tony.kaz at verizon.net (tony.kaz at verizon.net) Date: Fri, 3 Apr 2020 13:31:45 -0400 Subject: [Elecraft] 75 ohm coax In-Reply-To: <20200403061126785@smtp.email-protect.gosecure.net> References: <20200403061126785@smtp.email-protect.gosecure.net> Message-ID: <073e01d609dd$bf9edc10$3edc9430$@verizon.net> I have been using Commscope F660BEF for years for both receive lines and transmit coax for my 80M 4-sq using F-connectors. The other year I had a 100' piece of RG6 that had a solid copper center conductor and a copper braid. Compared that to the F660BEF on 1.8 and 3.5 for loss at 100'. I did not see any difference in power loss. I guess the F660BEF has enough copper plate to keep losses low on the low bands. Or maybe I just had a bad piece of copper RG6? N2TK, Tony -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Frederick Dwight Sent: Friday, April 3, 2020 2:09 AM To: elecraft at mailman.qth.net Subject: [Elecraft] 75 ohm coax If your 75 ohm coax has a steel/copper coated center conductor, be sure to test it for loss on the lowest frequency band you will use. I experimented with a steel core 160 meter antenna and found it had some additional loss and probably due to the inductance it could be shorter for resonance (10 % perhaps ??) so I abandoned the idea. Never noticed the effect on higher frequencies. 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 tony.kaz at verizon.net From donnieput at gmail.com Fri Apr 3 13:53:19 2020 From: donnieput at gmail.com (Don Putnick) Date: Fri, 3 Apr 2020 10:53:19 -0700 Subject: [Elecraft] [K3-OT] KPA500-F for sale Message-ID: For sale: Factory assembled KPA500-F 500W amplifier. Serial #818. Checked out by Elecraft, who added upgrades and mods through August 2018. Excellent condition, both operationally and cosmetically. Includes power cable and one KPAK3AUX cable. Price $1900 plus shipping costs. PayPal accepted, or will ship on clearance of personal check. Photos available to serious parties. Please contact Don NA6Z off list at NA6Z at ARRL.net. From donovanf at starpower.net Fri Apr 3 13:56:53 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 3 Apr 2020 13:56:53 -0400 (EDT) Subject: [Elecraft] 75 ohm coax In-Reply-To: <073e01d609dd$bf9edc10$3edc9430$@verizon.net> Message-ID: <2053085037.5177261.1585936613716.JavaMail.root@starpower.net> Hi Tony, Reasonable coaxial cable loss isn't an issue on the low bands unless you're using an inefficient receiving antenna (e.g. small loop, BOG, or high impedance short verticals). Most inefficient receiving antennas use a remotely powered preamp at -- or very near -- the feed point so even in those cases feed line loss isn't an issue on the low bands 73 Frank W3LPL ----- Original Message ----- From: "N2TK via Elecraft" To: "Frederick Dwight" , elecraft at mailman.qth.net Sent: Friday, April 3, 2020 5:31:45 PM Subject: Re: [Elecraft] 75 ohm coax I have been using Commscope F660BEF for years for both receive lines and transmit coax for my 80M 4-sq using F-connectors. The other year I had a 100' piece of RG6 that had a solid copper center conductor and a copper braid. Compared that to the F660BEF on 1.8 and 3.5 for loss at 100'. I did not see any difference in power loss. I guess the F660BEF has enough copper plate to keep losses low on the low bands. Or maybe I just had a bad piece of copper RG6? N2TK, Tony -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Frederick Dwight Sent: Friday, April 3, 2020 2:09 AM To: elecraft at mailman.qth.net Subject: [Elecraft] 75 ohm coax If your 75 ohm coax has a steel/copper coated center conductor, be sure to test it for loss on the lowest frequency band you will use. I experimented with a steel core 160 meter antenna and found it had some additional loss and probably due to the inductance it could be shorter for resonance (10 % perhaps ??) so I abandoned the idea. Never noticed the effect on higher frequencies. 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 tony.kaz at verizon.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 donovanf at starpower.net From AE4PB at carolinaheli.com Fri Apr 3 08:53:40 2020 From: AE4PB at carolinaheli.com (AE4PB at carolinaheli.com) Date: Fri, 3 Apr 2020 08:53:40 -0400 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <04fc01d60787$19903970$4cb0ac50$@carolinaheli.com> References: <047b01d6077b$038a85b0$0a9f9110$@carolinaheli.com> <2aedded7-00df-4474-1f18-4db6c63bdcdb@gmail.com> <04fc01d60787$19903970$4cb0ac50$@carolinaheli.com> Message-ID: <01be01d609b6$e6c757d0$b4560770$@carolinaheli.com> So I found a formula for feedline length and just need some eyes on it to make sure I applied it correctly. I want to measure twice and cut once. Then I can use my antenna analyzer with a dummy load on the line to trim it. The columns are band, freq in Mhz, Multiplier to give multiples of the 1/2 wave length. You have to view the email full screen width or the tables wrap making it hard to read. It looks like 111.7694545 feet is the calculated half wavelength for 80m (3.53Mhz), not sure what will happen on 30m as it's closest length appears to occur at 3 wavelengths where the feedline would be about 4.801946936 Feet too long. Not sure what the SWR related losses will be but it will probably be ok. BAND Freq 1 2 2.5 3 3.5 4 4.5 5 5.5 6 6.5 7 7.5 8 80 3.52 111.7694545 223.5389091 279.4236364 335.3083636 391.1930909 447.0778182 502.9625455 558.8472727 614.732 670.6167273 726.5014545 782.3861818 838.2709091 894.1556364 40 7.04 55.88472727 111.7694545 139.7118182 167.6541818 195.5965455 223.5389091 251.4812727 279.4236364 307.366 335.3083636 363.2507273 391.1930909 419.1354545 447.0778182 30 10.125 38.85713383 77.71426765 97.14283457 116.5714015 135.9999684 155.4285353 174.8571022 194.2856691 213.714236 233.142803 252.5713699 271.9999368 291.4285037 310.8570706 20 14.08 27.94236364 55.88472727 69.85590909 83.82709091 97.79827273 111.7694545 125.7406364 139.7118182 153.683 167.6541818 181.6253636 195.5965455 209.5677273 223.5389091 15 21.4 18.38450841 36.76901682 45.96127103 55.15352523 64.34577944 73.53803364 82.73028785 91.92254206 101.1147963 110.3070505 119.4993047 128.6915589 137.8838131 147.0760673 10 27 14.57142519 29.14285037 36.42856296 43.71427556 50.99998815 58.28570074 65.57141333 72.85712593 80.14283852 87.42855111 94.7142637 101.9999763 109.2856889 116.5714015 Formula used: L = (S * W * Vf)/f S 983.5712 W 0.5 VF 0.8 983.5712 L = (S * W * Vf)/f S speed of light in meters or feet W number of wavelengths desired VF velocity factor Jerry Moore Cell: 803-431-1870 From donovanf at starpower.net Fri Apr 3 14:26:30 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 3 Apr 2020 14:26:30 -0400 (EDT) Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <01be01d609b6$e6c757d0$b4560770$@carolinaheli.com> Message-ID: <1443948481.5194589.1585938390062.JavaMail.root@starpower.net> Hi Jerry, What coax do you plan to use (manufacturer and part number)? Did you intentionally use 27 MHz in the last row? Your other calculations look good but you carried them to far too many significant digits when the Vf of most coax (especially CATV coax) is only approximate. Cut your coax ten percent too long, leave the end of the coax open circuited. Your antenna analyzer will then set the length very accurately. 73 Frank W3LPL ----- Original Message ----- From: AE4PB at carolinaheli.com To: elecraft at mailman.qth.net Sent: Friday, April 3, 2020 12:53:40 PM Subject: Re: [Elecraft] 75ohm Impedance question K3S and Antenna side. So I found a formula for feedline length and just need some eyes on it to make sure I applied it correctly. I want to measure twice and cut once. Then I can use my antenna analyzer with a dummy load on the line to trim it. The columns are band, freq in Mhz, Multiplier to give multiples of the 1/2 wave length. You have to view the email full screen width or the tables wrap making it hard to read. It looks like 111.7694545 feet is the calculated half wavelength for 80m (3.53Mhz), not sure what will happen on 30m as it's closest length appears to occur at 3 wavelengths where the feedline would be about 4.801946936 Feet too long. Not sure what the SWR related losses will be but it will probably be ok. BAND Freq 1 2 2.5 3 3.5 4 4.5 5 5.5 6 6 6.5 7 7.5 8 80 3.52 111.7694545 223.5389091 279.4236364 335.3083636 391.1930909 447.0778182 502.9625455 558.8472727 614.732 670.6167273 726.5014545 782.3861818 838.2709091 894.1556364 40 7.04 55.88472727 111.7694545 139.7118182 167.6541818 195.5965455 223.5389091 251.4812727 279.4236364 307.366 335.3083636 363.2507273 391.1930909 419.1354545 447.0778182 30 10.125 38.85713383 77.71426765 97.14283457 116.5714015 135.9999684 155.4285353 174.8571022 194.2856691 213.714236 233.142803 252.5713699 271.9999368 291.4285037 310.8570706 20 14.08 27.94236364 55.88472727 69.85590909 83.82709091 97.79827273 111.7694545 125.7406364 139.7118182 153.683 167.6541818 181.6253636 195.5965455 209.5677273 223.5389091 15 21.4 18.38450841 36.76901682 45.96127103 55.15352523 64.34577944 73.53803364 82.73028785 91.92254206 101.1147963 110.3070505 119.4993047 128.6915589 137.8838131 147.0760673 10 27 14.57142519 29.14285037 36.42856296 43.71427556 50.99998815 58.28570074 65.57141333 72.85712593 80.14283852 87.42855111 94.7142637 101.9999763 109.2856889 116.5714015 Formula used: L = (S * W * Vf)/f S 983.5712 W 0.5 VF 0.8 983.5712 L = (S * W * Vf)/f S speed of light in meters or feet W number of wavelengths desired VF velocity factor Jerry Moore Cell: 803-431-1870 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 daveingeb at comcast.net Fri Apr 3 14:41:19 2020 From: daveingeb at comcast.net (DAVID INGEBRIGHT) Date: Fri, 3 Apr 2020 12:41:19 -0600 (MDT) Subject: [Elecraft] KAT500 Remote Control Message-ID: <1104498605.375908.1585939280219@connect.xfinity.com> I have a KAT500 ATU that I want to remote control over the home network and over the internet when I'm at the winter QTH. I can run the 500 connected to my local laptop with the Eleraft-supplied usb cable. Now I'd like to run it remotely. Bought a Lantronix serial server https://www.lantronix.com/products/uds2100/ and it looks like it will work. I have it running connected to the network and the KAT500 but the Elecraft utility wants to find a COM port! So how do I get it to look on the internet for the serial server? Maybe it's a question for lantronix but since the elecraft remote utility is looking for a com port instead of an iP address in the internet, I am at a stopping point. Any help would be appreciated. de dave WB7ELY From ar at dseven.org Fri Apr 3 14:54:16 2020 From: ar at dseven.org (iain macdonnell - N6ML) Date: Fri, 3 Apr 2020 11:54:16 -0700 Subject: [Elecraft] KAT500 Remote Control In-Reply-To: <1104498605.375908.1585939280219@connect.xfinity.com> References: <1104498605.375908.1585939280219@connect.xfinity.com> Message-ID: On Fri, Apr 3, 2020 at 11:43 AM DAVID INGEBRIGHT wrote: > > I have a KAT500 ATU that I want to remote control over the home network and over the internet when I'm at the winter QTH. I can run the 500 connected to my local laptop with the Eleraft-supplied usb cable. Now I'd like to run it remotely. Bought a Lantronix serial server https://www.lantronix.com/products/uds2100/ and it looks like it will work. I have it running connected to the network and the KAT500 but the Elecraft utility wants to find a COM port! So how do I get it to look on the internet for the serial server? Maybe it's a question for lantronix but since the elecraft remote utility is looking for a com port instead of an iP address in the internet, I am at a stopping point. Any help would be appreciated. I don't have experience with it, but the answer is on the page you provided a link to: "Using Lantronix supplied Com Port Redirector software, Windows? device applications not designed for network communications are re-directed to communicate to devices connected to the UDS2100." "Built into the included Com Port Redirector software, TruPort? technology enables Windows-based applications to access and control serial ports on the UDS2100 as if they were actually local PC serial ports." So you need to install that (Com Port Redirector software) on your Windows PC. It appears to be available at: https://www.lantronix.com/products/com-port-redirector/ 73, ~iain / N6ML From vfo77 at inkbox.net Fri Apr 3 17:18:02 2020 From: vfo77 at inkbox.net (Frank O'Donnell) Date: Fri, 3 Apr 2020 14:18:02 -0700 Subject: [Elecraft] Max power for JT9 with K3S 100? Message-ID: <38a4e5c1-6a0d-60f4-93e6-ef8b2dfde1dc@inkbox.net> I've been using JT9 mode on 630m this winter with my K3S outputting to an external class D amp. Now I'm interested in trying some JT9 QSOs with some people currently operating on 160m. For me this would mean outputting directly from the K3S (with internal tuner) to the antenna. Given the 1-minute cycle time for JT9, are there recommendations (official from Elecraft, or otherwise) on maximum power to use in a situation like this? And/or, is the answer dependent on the SWR I can achieve with the antenna? Thanks and 73, Frank K6FOD From AE4PB at carolinaheli.com Fri Apr 3 16:00:15 2020 From: AE4PB at carolinaheli.com (AE4PB at carolinaheli.com) Date: Fri, 3 Apr 2020 16:00:15 -0400 Subject: [Elecraft] 75ohm Impedance question K3S and Antenna side. In-Reply-To: <1443948481.5194589.1585938390062.JavaMail.root@starpower.net> References: <01be01d609b6$e6c757d0$b4560770$@carolinaheli.com> <1443948481.5194589.1585938390062.JavaMail.root@starpower.net> Message-ID: <041101d609f2$7e64d000$7b2e7000$@carolinaheli.com> Hi Frank, I don?t know the manf or part number. This is ? hard cable from the cable company that I received as a gift from very fine OM K4MQG, Gary Dixon. I just guessed at the freq for 10m. I don?t use the band so I just put something in. The extra digits are a result of the number used as the numerator in the calculation and I didn?t want to round it because I?ll convert that to inches and add a bit before I actually cut. I used 80% for the vf Thank you Frank !! My antenna purchase (Hustler 6BTV ) is slightly delayed (holding onto cash until after the pandemic). I can still get the radial and coax work done. Jerry ? AE4PB 73 .. From: donovanf at starpower.net Sent: Friday, April 3, 2020 2:27 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] 75ohm Impedance question K3S and Antenna side. Hi Jerry, What coax do you plan to use (manufacturer and part number)? Did you intentionally use 27 MHz in the last row? Your other calculations look good but you carried them to far too many significant digits when the Vf of most coax (especially CATV coax) is only approximate. Cut your coax ten percent too long, leave the end of the coax open circuited. Your antenna analyzer will then set the length very accurately. 73 Frank W3LPL _____ From: AE4PB at carolinaheli.com To: elecraft at mailman.qth.net Sent: Friday, April 3, 2020 12:53:40 PM Subject: Re: [Elecraft] 75ohm Impedance question K3S and Antenna side. So I found a formula for feedline length and just need some eyes on it to make sure I applied it correctly. I want to measure twice and cut once. Then I can use my antenna analyzer with a dummy load on the line to trim it. The columns are band, freq in Mhz, Multiplier to give multiples of the 1/2 wave length. You have to view the email full screen width or the tables wrap making it hard to read. It looks like 111.7694545 feet is the calculated half wavelength for 80m (3.53Mhz), not sure what will happen on 30m as it's closest length appears to occur at 3 wavelengths where the feedline would be about 4.801946936 Feet too long. Not sure what the SWR related losses will be but it will probably be ok. BAND Freq 1 2 2.5 3 3.5 4 4.5 5 5.5 6 6 6.5 7 7.5 8 80 3.52 111.7694545 223.5389091 279.4236364 335.3083636 391.1930909 447.0778182 502.9625455 558.8472727 614.732 670.6167273 726.5014545 782.3861818 838.2709091 894.1556364 40 7.04 55.88472727 111.7694545 139.7118182 167.6541818 195.5965455 223.5389091 251.4812727 279.4236364 307.366 335.3083636 363.2507273 391.1930909 419.1354545 447.0778182 30 10.125 38.85713383 77.71426765 97.14283457 116.5714015 135.9999684 155.4285353 174.8571022 194.2856691 213.714236 233.142803 252.5713699 271.9999368 291.4285037 310.8570706 20 14.08 27.94236364 55.88472727 69.85590909 83.82709091 97.79827273 111.7694545 125.7406364 139.7118182 153.683 167.6541818 181.6253636 195.5965455 209.5677273 223.5389091 15 21.4 18.38450841 36.76901682 45.96127103 55.15352523 64.34577944 73.53803364 82.73028785 91.92254206 101.1147963 110.3070505 119.4993047 128.6915589 137.8838131 147.0760673 10 27 14.57142519 29.14285037 36.42856296 43.71427556 50.99998815 58.28570074 65.57141333 72.85712593 80.14283852 87.42855111 94.7142637 101.9999763 109.2856889 116.5714015 Formula used: L = (S * W * Vf)/f S 983.5712 W 0.5 VF 0.8 983.5712 L = (S * W * Vf)/f S speed of light in meters or feet W number of wavelengths desired VF velocity factor Jerry Moore Cell: 803-431-1870 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 jim at audiosystemsgroup.com Fri Apr 3 17:50:48 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 3 Apr 2020 14:50:48 -0700 Subject: [Elecraft] 75 ohm coax In-Reply-To: <073e01d609dd$bf9edc10$3edc9430$@verizon.net> References: <20200403061126785@smtp.email-protect.gosecure.net> <073e01d609dd$bf9edc10$3edc9430$@verizon.net> Message-ID: <6e14234a-b566-dbd6-5408-eb41e71ddfad@audiosystemsgroup.com> On 4/3/2020 10:31 AM, N2TK via Elecraft wrote: > I have been using Commscope F660BEF for years for both receive lines and > transmit coax for my 80M 4-sq using F-connectors. This is very nice cable -- flooded with a gel that varmints don't like, very smooth jacket pulls very easily. It's what DX Eng was selling last I looked. I'm using a lot of it for RX antennas, all the way up to UHF TV antennas. 73, Jim K9YC From rmcgraw at blomand.net Fri Apr 3 19:39:44 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 3 Apr 2020 18:39:44 -0500 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: <38a4e5c1-6a0d-60f4-93e6-ef8b2dfde1dc@inkbox.net> References: <38a4e5c1-6a0d-60f4-93e6-ef8b2dfde1dc@inkbox.net> Message-ID: Frank: The duty cycle for the transmitter, as stated in the manual, is;? CW and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient.?? Do note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 watts {52 - 54 MHz} The duty cycle for JT-9, 1 minute transmit, 1 minute receive would be 50%.?? I frequently run 100 watts on WSJT-X FT-8 with no issues.? Just pay attention to PA temperature.? It should be 60 C or less.?? Also this is with FANS in the automatic mode. 73 Bob, K4TAX On 4/3/2020 4:18 PM, Frank O'Donnell wrote: > I've been using JT9 mode on 630m this winter with my K3S outputting to > an external class D amp. > > Now I'm interested in trying some JT9 QSOs with some people currently > operating on 160m. For me this would mean outputting directly from the > K3S (with internal tuner) to the antenna. > > Given the 1-minute cycle time for JT9, are there recommendations > (official from Elecraft, or otherwise) on maximum power to use in a > situation like this? And/or, is the answer dependent on the SWR I can > achieve with the antenna? > > Thanks and 73, > > Frank K6FOD > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 backhoeken at yahoo.com Fri Apr 3 23:36:47 2020 From: backhoeken at yahoo.com (Ken B) Date: Sat, 4 Apr 2020 03:36:47 +0000 (UTC) Subject: [Elecraft] K4 VHF module References: <1889479351.325132.1585971407430.ref@mail.yahoo.com> Message-ID: <1889479351.325132.1585971407430@mail.yahoo.com> Good evening? Quick Q - is there a rough ETA when the VHF module will be ready for the K4.? Thank you?Ken WB8PKK? From david at g4nrt.com Sat Apr 4 04:20:30 2020 From: david at g4nrt.com (David Bondy) Date: Sat, 4 Apr 2020 08:20:30 +0000 Subject: [Elecraft] K3 Settings for SignaLink USB Message-ID: <7BCAE0CE-36DD-478F-874C-915CBB5A3768@g4nrt.com> I have been using digital modes for years and have a number of SignaLink USB devices which have all worked very well with a variety of rigs. I am new to the K3 and have bought the Tigertronics cable and module set to allow me to connect a SignaLink USB to the rear Line In/Out and PTT connections on my K3. I am able to operate the rig (via a USB to RS232 cable for CAT) and transmit JT8 signals (via the SignaLink) - I can see that I am getting out by monitoring Hamspots! HOWEVER I am not able to get enough drive from the K3 via the Signalink USB to decode incoming signals. Can someone who has this working please tell me what settings they have made to the K3 in order to drive the SignaLink? I have set CONFIG > LIN OUT to 100 and I have rotated the Rx knob to full clockwise on the SignaLink but I am still not getting enough output to drive WSJT-X. I am sure that I am missing something but I don?t know what because I would expect the LIN OUT setting to be more like 10! Thanks in advance and 73, David G4NRT P.S. Please don?t bother to reply telling me to connect the rig to my PC sound card ? it doesn?t have one! From nr4c at widomaker.com Sat Apr 4 07:26:05 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 4 Apr 2020 07:26:05 -0400 Subject: [Elecraft] K3 Settings for SignaLink USB In-Reply-To: <7BCAE0CE-36DD-478F-874C-915CBB5A3768@g4nrt.com> References: <7BCAE0CE-36DD-478F-874C-915CBB5A3768@g4nrt.com> Message-ID: I ask ?why use a SignaLink with the K3?? The K3 already has buffered Lin In and Line Out. Separate settings for in/out for each mode. The one item to pay attention to is transmit audio level. You should set the power out by using the Per knob on the K3 front panel. Then adjust the audio to show 4 solid bars and flashingbfifth bar on the ALC meter. Sent from my iPhone ...nr4c. bill > On Apr 4, 2020, at 4:22 AM, David Bondy wrote: > > ?I have been using digital modes for years and have a number of SignaLink USB devices which have all worked very well with a variety of rigs. > > I am new to the K3 and have bought the Tigertronics cable and module set to allow me to connect a SignaLink USB to the rear Line In/Out and PTT connections on my K3. > > I am able to operate the rig (via a USB to RS232 cable for CAT) and transmit JT8 signals (via the SignaLink) - I can see that I am getting out by monitoring Hamspots! HOWEVER I am not able to get enough drive from the K3 via the Signalink USB to decode incoming signals. > > Can someone who has this working please tell me what settings they have made to the K3 in order to drive the SignaLink? I have set CONFIG > LIN OUT to 100 and I have rotated the Rx knob to full clockwise on the SignaLink but I am still not getting enough output to drive WSJT-X. I am sure that I am missing something but I don?t know what because I would expect the LIN OUT setting to be more like 10! > > Thanks in advance and 73, > > David G4NRT > > P.S. Please don?t bother to reply telling me to connect the rig to my PC sound card ? it doesn?t have one! > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Apr 4 07:29:38 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 4 Apr 2020 07:29:38 -0400 Subject: [Elecraft] K4 VHF module In-Reply-To: <1889479351.325132.1585971407430@mail.yahoo.com> References: <1889479351.325132.1585971407430@mail.yahoo.com> Message-ID: <141D8D18-4AC8-4D18-B53A-D3F957E6275A@widomaker.com> I suspect this item might be several months after they start shipping the radios. Dust off your ?crystal ball?. Sent from my iPhone ...nr4c. bill > On Apr 3, 2020, at 11:38 PM, Ken B via Elecraft wrote: > > ?Good evening > Quick Q - is there a rough ETA when the VHF module will be ready for the K4. > Thank you Ken WB8PKK > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jasimmons at pinewooddata.com Sat Apr 4 09:22:28 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Sat, 4 Apr 2020 08:22:28 -0500 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: <38a4e5c1-6a0d-60f4-93e6-ef8b2dfde1dc@inkbox.net> Message-ID: Fred Cady's book: "There are four fans speeds that turn on at different temperatures." "If the temperature reaches 84 degrees C the KPA3 will be bypassed until the temperature falls to stop any damage as a last-ditch backup measure to protect your expensive power transistors from the excess heat." -de John NI0K Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM: > Frank: > > The duty cycle for the transmitter, as stated in the manual, is;? CW > and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient.?? Do note > that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 watts > {52 - 54 MHz} > > The duty cycle for JT-9, 1 minute transmit, 1 minute receive would be > 50%.?? I frequently run 100 watts on WSJT-X FT-8 with no issues.? Just > pay attention to PA temperature.? It should be 60 C or less.?? Also > this is with FANS in the automatic mode. > > 73 > > Bob, K4TAX > > > On 4/3/2020 4:18 PM, Frank O'Donnell wrote: >> I've been using JT9 mode on 630m this winter with my K3S outputting >> to an external class D amp. >> >> Now I'm interested in trying some JT9 QSOs with some people currently >> operating on 160m. For me this would mean outputting directly from >> the K3S (with internal tuner) to the antenna. >> >> Given the 1-minute cycle time for JT9, are there recommendations >> (official from Elecraft, or otherwise) on maximum power to use in a >> situation like this? And/or, is the answer dependent on the SWR I can >> achieve with the antenna? >> >> Thanks and 73, >> >> Frank K6FOD >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 jasimmons at pinewooddata.com From donwilh at embarqmail.com Sat Apr 4 09:38:03 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 4 Apr 2020 09:38:03 -0400 Subject: [Elecraft] K3 Settings for SignaLink USB In-Reply-To: <7BCAE0CE-36DD-478F-874C-915CBB5A3768@g4nrt.com> References: <7BCAE0CE-36DD-478F-874C-915CBB5A3768@g4nrt.com> Message-ID: <4265940b-d29f-1d11-3e41-b9cb9770d3ad@embarqmail.com> David, I think you should check the jumpers in the SignaLink. Also make certain the level controls for the SL soundcard are set correctly in the computer. Or simply use another USB soundcard - the K33 has built-in isolation transformers. Set the K3 LIN OUT level to about 10. You apparently have a problem, but it may not be in the K3. Plug amplified computer speakers into the K3 LINE OUT jack as a test. You should hear the sounds. 73, Don W3FPR On 4/4/2020 4:20 AM, David Bondy wrote: > I have been using digital modes for years and have a number of SignaLink USB devices which have all worked very well with a variety of rigs. > > I am new to the K3 and have bought the Tigertronics cable and module set to allow me to connect a SignaLink USB to the rear Line In/Out and PTT connections on my K3. > > I am able to operate the rig (via a USB to RS232 cable for CAT) and transmit JT8 signals (via the SignaLink) - I can see that I am getting out by monitoring Hamspots! HOWEVER I am not able to get enough drive from the K3 via the Signalink USB to decode incoming signals. > From ai4ns.mike at gmail.com Sat Apr 4 10:10:24 2020 From: ai4ns.mike at gmail.com (Mike Short) Date: Sat, 4 Apr 2020 09:10:24 -0500 Subject: [Elecraft] PX-3 wanted Message-ID: Anyone have one available? Mike AI4NS From kb1tcd at gmail.com Sat Apr 4 11:34:19 2020 From: kb1tcd at gmail.com (JP Douglas) Date: Sat, 4 Apr 2020 11:34:19 -0400 Subject: [Elecraft] K3 Settings for SignaLink USB In-Reply-To: <7BCAE0CE-36DD-478F-874C-915CBB5A3768@g4nrt.com> References: <7BCAE0CE-36DD-478F-874C-915CBB5A3768@g4nrt.com> Message-ID: <008509FA-4E81-4D9E-8243-235C5A537F2C@gmail.com> You have the Signalink w/the module or the one w/jumpers? Several of my friends have had trouble w/the Signalink w/the module, I have two Signalinks, both w/jumpers and don?t have any issues. 73 de Jose Douglas KB1TCD Sent from my iPad > On Apr 4, 2020, at 4:21 AM, David Bondy wrote: > > ?I have been using digital modes for years and have a number of SignaLink USB devices which have all worked very well with a variety of rigs. > > I am new to the K3 and have bought the Tigertronics cable and module set to allow me to connect a SignaLink USB to the rear Line In/Out and PTT connections on my K3. > > I am able to operate the rig (via a USB to RS232 cable for CAT) and transmit JT8 signals (via the SignaLink) - I can see that I am getting out by monitoring Hamspots! HOWEVER I am not able to get enough drive from the K3 via the Signalink USB to decode incoming signals. > > Can someone who has this working please tell me what settings they have made to the K3 in order to drive the SignaLink? I have set CONFIG > LIN OUT to 100 and I have rotated the Rx knob to full clockwise on the SignaLink but I am still not getting enough output to drive WSJT-X. I am sure that I am missing something but I don?t know what because I would expect the LIN OUT setting to be more like 10! > > Thanks in advance and 73, > > David G4NRT > > P.S. Please don?t bother to reply telling me to connect the rig to my PC sound card ? it doesn?t have one! > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 johnae5x at gmail.com Sat Apr 4 15:41:12 2020 From: johnae5x at gmail.com (John Harper) Date: Sat, 4 Apr 2020 14:41:12 -0500 Subject: [Elecraft] K4 VHF module Message-ID: Next Thursday. John AE5X https://ae5x.blogspot.com >Good evening >Quick Q - is there a rough ETA when the VHF module will be ready for the K4. >Thank you Ken WB8PKK From vfo77 at inkbox.net Sat Apr 4 16:41:45 2020 From: vfo77 at inkbox.net (Frank O'Donnell) Date: Sat, 4 Apr 2020 13:41:45 -0700 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: <38a4e5c1-6a0d-60f4-93e6-ef8b2dfde1dc@inkbox.net> Message-ID: <18b3164f-dc8d-790c-90aa-bb289f5be874@inkbox.net> Thanks for the replies. I've enabled the PA temp display (currently showing 22C right after power-up but before transmitting), and will keep an eye on that. Bob, I noticed that line in the K3S manual about the CW/SSB duty cycle. Does "100% - 10 min, 100 W key-down" mean that if you key down without stop in CW mode it can go 10 minutes at 100 watts? That seems like an awful lot. Where do the recommended TPO's for 6 meters, the 50% value for JT9, and the 60C guideline for the PA temp come from? Thanks again, Frank K6FOD On 4/4/20 6:22 AM, John Simmons wrote: > Fred Cady's book: > > "There are four fans speeds that turn on at different temperatures." > "If the temperature reaches 84 degrees C the KPA3 will be bypassed > until the temperature falls to stop any damage as a last-ditch backup > measure to protect your expensive power transistors from the excess > heat." > > -de John NI0K > > > Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM: >> Frank: >> >> The duty cycle for the transmitter, as stated in the manual, is;? CW >> and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient.?? Do >> note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 >> watts {52 - 54 MHz} >> >> The duty cycle for JT-9, 1 minute transmit, 1 minute receive would be >> 50%.?? I frequently run 100 watts on WSJT-X FT-8 with no issues.? >> Just pay attention to PA temperature.? It should be 60 C or less.?? >> Also this is with FANS in the automatic mode. >> >> 73 >> >> Bob, K4TAX >> >> >> On 4/3/2020 4:18 PM, Frank O'Donnell wrote: >>> I've been using JT9 mode on 630m this winter with my K3S outputting >>> to an external class D amp. >>> >>> Now I'm interested in trying some JT9 QSOs with some people >>> currently operating on 160m. For me this would mean outputting >>> directly from the K3S (with internal tuner) to the antenna. >>> >>> Given the 1-minute cycle time for JT9, are there recommendations >>> (official from Elecraft, or otherwise) on maximum power to use in a >>> situation like this? And/or, is the answer dependent on the SWR I >>> can achieve with the antenna? >>> >>> Thanks and 73, >>> >>> Frank K6FOD From a.durbin at msn.com Sat Apr 4 18:01:31 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sat, 4 Apr 2020 22:01:31 +0000 Subject: [Elecraft] Max power for JT9 with K3S 100? Message-ID: "Does "100% - 10 min, 100 W key-down" mean that if you key down without stop in CW mode it can go 10 minutes at 100 watts? That seems like an awful lot." If you want to know what it actually means you'd probably have to run a test and record the PA temperature. Does it reach maximum value within that 10 minute period? If so, what is that maximum value and do you want to operate the finals at that temperature? If temperature does not reach a maximum then what is the rate of increase? At what time does the increasing temperature cross over the temperature at which you are willing to operate the finals? I record KPA500 temperatures for every transmission. Unfortunately Kenwood does not provide finals temperature on the serial bus so I have to make do with recording my TS-590S rear chassis temperature. Kenwood provided data shows TS-590S final temperature limited at about 85 deg C after 5 minutes and remained constant for remainder of the 2 hour 100 W key down test. (and no, I don't let mine get that hot) 73, Andy, k3wyc From dave at nk7z.net Sat Apr 4 18:03:55 2020 From: dave at nk7z.net (Dave Cole) Date: Sat, 4 Apr 2020 15:03:55 -0700 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: Message-ID: What is the recommended temp to run the KPA500 at? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/4/20 3:01 PM, Andy Durbin wrote: > "Does "100% - 10 min, 100 W key-down" mean that if you key down without stop in CW mode it can go 10 minutes at 100 watts? That seems like an awful lot." > > If you want to know what it actually means you'd probably have to run a test and record the PA temperature. Does it reach maximum value within that 10 minute period? If so, what is that maximum value and do you want to operate the finals at that temperature? If temperature does not reach a maximum then what is the rate of increase? At what time does the increasing temperature cross over the temperature at which you are willing to operate the finals? > > I record KPA500 temperatures for every transmission. Unfortunately Kenwood does not provide finals temperature on the serial bus so I have to make do with recording my TS-590S rear chassis temperature. > > Kenwood provided data shows TS-590S final temperature limited at about 85 deg C after 5 minutes and remained constant for remainder of the 2 hour 100 W key down test. (and no, I don't let mine get that hot) > > 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 graziano at roccon.com Sat Apr 4 18:54:28 2020 From: graziano at roccon.com (Graziano Roccon (IW2NOY)) Date: Sun, 05 Apr 2020 00:54:28 +0200 Subject: [Elecraft] (Too much..) RF back and through the RX ANT OUT for external receiver In-Reply-To: References: Message-ID: <66c893591060d12694f5435b53928603@roccon.com> Hello, i ordered a Colibr? Nano USB SDR. and i am thinkg to connect the Colibr? antenna through the RX ANT OT of the K3s tu use the colibr? and his software like a panadapter for the K3s. The colibr? can't accept "IF OUT", so i will use RX ANT OUT from XV3B to give antenna signal to the Colibr?. But it seems, from some test i did with friends, that RX OUT is NOT well or totally disconnected weh K3s goes in TX and some RF goes (or come back) through the RX OUT. I would like to know if someone knows how many "dbm" or watt could goes through the RX OUT when the K3s is in TX with maximum power. Too much RF can kill the the SDR receiver. Anyone knows the answer ? Maybe Wayne or Eric ? ;-) Any help would be appreciated. Thanks a lot, Graziano IW2NOY From rmcgraw at blomand.net Sat Apr 4 20:07:37 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 4 Apr 2020 19:07:37 -0500 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: Message-ID: <5787e1c3-ad47-5ecd-b7c6-dcb3e8cda705@blomand.net> Andy et al; Just quoted what is in the K3S manual.?? No interpretation provided.?? I agree that 100 watts key down is a lot for a SSB amplifier running in CW mode. ? To me that says 100 watts for 10 minutes and then RX for 10 minutes.?? Otherwise equal TX and RX times. ? Who does that? I just pay attention to the PA temp when running digital modes. Likewise for the KPA500. 73 Bob, K4TAX On 4/4/2020 5:01 PM, Andy Durbin wrote: > "Does "100% - 10 min, 100 W key-down" mean that if you key down without stop in CW mode it can go 10 minutes at 100 watts? That seems like an awful lot." > > If you want to know what it actually means you'd probably have to run a test and record the PA temperature. Does it reach maximum value within that 10 minute period? If so, what is that maximum value and do you want to operate the finals at that temperature? If temperature does not reach a maximum then what is the rate of increase? At what time does the increasing temperature cross over the temperature at which you are willing to operate the finals? > > I record KPA500 temperatures for every transmission. Unfortunately Kenwood does not provide finals temperature on the serial bus so I have to make do with recording my TS-590S rear chassis temperature. > > Kenwood provided data shows TS-590S final temperature limited at about 85 deg C after 5 minutes and remained constant for remainder of the 2 hour 100 W key down test. (and no, I don't let mine get that hot) > > 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 rmcgraw at blomand.net > From rmcgraw at blomand.net Sat Apr 4 20:09:14 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 4 Apr 2020 19:09:14 -0500 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: Message-ID: <256c028c-4089-a458-b0be-cffff9a3d18e@blomand.net> Running FT-8 or PSK-31, I see 60 C from time to time.?? Some bands I see the temp rise much faster indicating less efficiency. 73 Bob, K4TAX On 4/4/2020 5:03 PM, Dave Cole wrote: > What is the recommended temp to run the KPA500 at? > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/4/20 3:01 PM, Andy Durbin wrote: >> "Does "100% - 10 min, 100 W key-down" mean that if you key down >> without stop in CW mode it can go 10 minutes at 100 watts? That seems >> like an awful lot." >> >> If you want to know what it actually means you'd probably have to run >> a test and record the PA temperature.? Does it reach maximum value >> within that 10 minute period?? If so, what is that maximum value and >> do you want to operate the finals at that temperature?? If >> temperature does not reach a maximum then what is the rate of >> increase?? At what time does the increasing temperature cross over >> the temperature at which you are willing to operate the finals? >> >> I record KPA500 temperatures for every transmission. Unfortunately >> Kenwood does not provide finals temperature on the serial bus so I >> have to make do with recording my TS-590S rear chassis temperature. >> >> Kenwood provided data shows TS-590S final temperature limited at >> about 85 deg C after 5 minutes and remained constant for remainder of >> the 2 hour 100 W key down test.? (and no, I don't let mine get that hot) >> >> 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 rmcgraw at blomand.net From rmcgraw at blomand.net Sat Apr 4 20:17:19 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 4 Apr 2020 19:17:19 -0500 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: <18b3164f-dc8d-790c-90aa-bb289f5be874@inkbox.net> References: <38a4e5c1-6a0d-60f4-93e6-ef8b2dfde1dc@inkbox.net> <18b3164f-dc8d-790c-90aa-bb289f5be874@inkbox.net> Message-ID: <7b165da1-53ad-7d02-c604-1ad7250fb6e5@blomand.net> Frank et al; Just quoted what is in the K3S manual.?? No interpretation provided.?? I agree that 100 watts key down is a lot for a SSB amplifier running in CW mode. ? To me that says 100 watts for 10 minutes and then RX for 10 minutes.?? Otherwise equal TX and RX times. ? Who does that? And if one is running "100 watts" then running CW or SSB for 10 minutes might be the limit.? Just speculation.?? On AM I might talk for 10 minutes but that is at 25% rated power output for carrier, yet it is 100 watts PEP.?? The 60 C is MY guideline. The KPA3A will shut down about 85 C or so. On 6M I run my KPA500 at about 300 to 400 watts.? The K3S is running about 25 to 30 watts on 6M.?? At this point I'm watching the KPA500 temperature. There is NO DX worth blowing a PA either in the K3S or the KPA500.??? But I know guys that will blow things up, pushing things to the max and beyond? trying to work that DX station.? I say bah humbug to that! I just pay attention to the PA temp, specially when running digital modes. Likewise for the KPA500. 73 Bob, K4TAX On 4/4/2020 3:41 PM, Frank O'Donnell wrote: > Thanks for the replies. > > I've enabled the PA temp display (currently showing 22C right after > power-up but before transmitting), and will keep an eye on that. > > Bob, I noticed that line in the K3S manual about the CW/SSB duty > cycle. Does "100% - 10 min, 100 W key-down" mean that if you key down > without stop in CW mode it can go 10 minutes at 100 watts? That seems > like an awful lot. > > Where do the recommended TPO's for 6 meters, the 50% value for JT9, > and the 60C guideline for the PA temp come from? > > Thanks again, > > Frank K6FOD > > > On 4/4/20 6:22 AM, John Simmons wrote: >> Fred Cady's book: >> >> "There are four fans speeds that turn on at different temperatures." >> "If the temperature reaches 84 degrees C the KPA3 will be bypassed >> until the temperature falls to stop any damage as a last-ditch backup >> measure to protect your expensive power transistors from the excess >> heat." >> >> -de John NI0K >> >> >> Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM: >>> Frank: >>> >>> The duty cycle for the transmitter, as stated in the manual, is;? CW >>> and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient.?? Do >>> note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 >>> watts {52 - 54 MHz} >>> >>> The duty cycle for JT-9, 1 minute transmit, 1 minute receive would >>> be 50%.?? I frequently run 100 watts on WSJT-X FT-8 with no issues.? >>> Just pay attention to PA temperature.? It should be 60 C or less.?? >>> Also this is with FANS in the automatic mode. >>> >>> 73 >>> >>> Bob, K4TAX >>> >>> >>> On 4/3/2020 4:18 PM, Frank O'Donnell wrote: >>>> I've been using JT9 mode on 630m this winter with my K3S outputting >>>> to an external class D amp. >>>> >>>> Now I'm interested in trying some JT9 QSOs with some people >>>> currently operating on 160m. For me this would mean outputting >>>> directly from the K3S (with internal tuner) to the antenna. >>>> >>>> Given the 1-minute cycle time for JT9, are there recommendations >>>> (official from Elecraft, or otherwise) on maximum power to use in a >>>> situation like this? And/or, is the answer dependent on the SWR I >>>> can achieve with the antenna? >>>> >>>> Thanks and 73, >>>> >>>> Frank K6FOD > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 kevinr at coho.net Sat Apr 4 23:52:10 2020 From: kevinr at coho.net (kevinr) Date: Sat, 4 Apr 2020 20:52:10 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <41633239-3e36-4197-9b8e-bdb3d97db36b@coho.net> Good Evening, ??? Snow, rain, and hail fell each day this week.? The daffodils which sprouted a few weeks ago have yet to bloom.? But the forecast is for sun and maybe even 50 degrees on Monday.? I had many plans for spring and summer; most of them will have to be postponed. ?? There is a real sunspot this week.? One of solar cycle 25 crossing the northern part of the sun.? A few other celestial sightings are Venus in conjunction with the Pleiades and our summer comet keeps brightening.? Projections are for it to be visible during daylight hours.? We shall see. ? The hummingbirds are active, they will force me in to town this week.? I haven't been off the property since the first week of March.? I expect I will see everything in black and white with Rod Serling narration. 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 brianchapnick at rogers.com Sun Apr 5 00:01:57 2020 From: brianchapnick at rogers.com (brianchapnick) Date: Sun, 05 Apr 2020 00:01:57 -0400 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: <7b165da1-53ad-7d02-c604-1ad7250fb6e5@blomand.net> Message-ID: This discussion fascinates me only in that I wonder why you are using so much power for weak signal modes? 5 or 10 watts should be plenty even with a compromised antenna and poor band conditions......or am I missing somthing.Brian VE3GMZ?Sent from my Samsung Galaxy smartphone. -------- Original message --------From: Bob McGraw K4TAX Date: 2020-04-04 8:19 p.m. (GMT-05:00) To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Max power for JT9 with K3S 100? Frank et al;Just quoted what is in the K3S manual.?? No interpretation provided.?? I agree that 100 watts key down is a lot for a SSB amplifier running in CW mode. ? To me that says 100 watts for 10 minutes and then RX for 10 minutes.?? Otherwise equal TX and RX times. ? Who does that?And if one is running "100 watts" then running CW or SSB for 10 minutes might be the limit.? Just speculation.?? On AM I might talk for 10 minutes but that is at 25% rated power output for carrier, yet it is 100 watts PEP.?? The 60 C is MY guideline. The KPA3A will shut down about 85 C or so.On 6M I run my KPA500 at about 300 to 400 watts.? The K3S is running about 25 to 30 watts on 6M.?? At this point I'm watching the KPA500 temperature.There is NO DX worth blowing a PA either in the K3S or the KPA500.??? But I know guys that will blow things up, pushing things to the max and beyond? trying to work that DX station.? I say bah humbug to that!I just pay attention to the PA temp, specially when running digital modes. Likewise for the KPA500.73Bob, K4TAXOn 4/4/2020 3:41 PM, Frank O'Donnell wrote:> Thanks for the replies.>> I've enabled the PA temp display (currently showing 22C right after > power-up but before transmitting), and will keep an eye on that.>> Bob, I noticed that line in the K3S manual about the CW/SSB duty > cycle. Does "100% - 10 min, 100 W key-down" mean that if you key down > without stop in CW mode it can go 10 minutes at 100 watts? That seems > like an awful lot.>> Where do the recommended TPO's for 6 meters, the 50% value for JT9, > and the 60C guideline for the PA temp come from?>> Thanks again,>> Frank K6FOD>>> On 4/4/20 6:22 AM, John Simmons wrote:>> Fred Cady's book:>>>> "There are four fans speeds that turn on at different temperatures.">> "If the temperature reaches 84 degrees C the KPA3 will be bypassed >> until the temperature falls to stop any damage as a last-ditch backup >> measure to protect your expensive power transistors from the excess >> heat.">>>> -de John NI0K>>>>>> Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM:>>> Frank:>>>>>> The duty cycle for the transmitter, as stated in the manual, is;? CW >>> and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient.?? Do >>> note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 >>> watts {52 - 54 MHz}>>>>>> The duty cycle for JT-9, 1 minute transmit, 1 minute receive would >>> be 50%.?? I frequently run 100 watts on WSJT-X FT-8 with no issues.? >>> Just pay attention to PA temperature.? It should be 60 C or less.?? >>> Also this is with FANS in the automatic mode.>>>>>> 73>>>>>> Bob, K4TAX>>>>>>>>> On 4/3/2020 4:18 PM, Frank O'Donnell wrote:>>>> I've been using JT9 mode on 630m this winter with my K3S outputting >>>> to an external class D amp.>>>>>>>> Now I'm interested in trying some JT9 QSOs with some people >>>> currently operating on 160m. For me this would mean outputting >>>> directly from the K3S (with internal tuner) to the antenna.>>>>>>>> Given the 1-minute cycle time for JT9, are there recommendations >>>> (official from Elecraft, or otherwise) on maximum power to use in a >>>> situation like this? And/or, is the answer dependent on the SWR I >>>> can achieve with the antenna?>>>>>>>> Thanks and 73,>>>>>>>> Frank K6FOD>> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft at mailman.qth.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 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 brianchapnick at rogers.com From rick.nk7i at gmail.com Sun Apr 5 00:13:45 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Sat, 4 Apr 2020 21:13:45 -0700 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: <20200405040225.19B48149AEDF@mail.qsl.net> References: <20200405040225.19B48149AEDF@mail.qsl.net> Message-ID: Because it?s weak signal at the receiving end; you use what power it takes to succeed in making the contact, up to the legal limit. On 160M, 1500 watts out is common. Rick NK7I Smell Czech corruptions are inevitable > On Apr 4, 2020, at 9:02 PM, brianchapnick wrote: > > ?This discussion fascinates me only in that I wonder why you are using so much power for weak signal modes? 5 or 10 watts should be plenty even with a compromised antenna and poor band conditions......or am I missing somthing.Brian VE3GMZ Sent from my Samsung Galaxy smartphone. > -------- Original message --------From: Bob McGraw K4TAX Date: 2020-04-04 8:19 p.m. (GMT-05:00) To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Max power for JT9 with K3S 100? Frank et al;Just quoted what is in the K3S manual. No interpretation provided. I agree that 100 watts key down is a lot for a SSB amplifier running in CW mode. To me that says 100 watts for 10 minutes and then RX for 10 minutes. Otherwise equal TX and RX times. Who does that?And if one is running "100 watts" then running CW or SSB for 10 minutes might be the limit. Just speculation. On AM I might talk for 10 minutes but that is at 25% rated power output for carrier, yet it is 100 watts PEP. The 60 C is MY guideline. The KPA3A will shut down about 85 C or so.On 6M I run my KPA500 at about 300 to 400 watts. The K3S is running about 25 to 30 watts on 6M. At this point I'm watching the KPA500 temperature.There is NO DX worth blowing a PA either in the K3S or the KPA500. But I know guys that will blow things up, pushing things to the max and beyond trying to work that DX station. I say bah humbug to that!I just pay attention to the PA temp, specially when running digital modes. Likewise for the KPA500.73Bob, K4TAXOn 4/4/2020 3:41 PM, Frank O'Donnell wrote:> Thanks for the replies.>> I've enabled the PA temp display (currently showing 22C right after > power-up but before transmitting), and will keep an eye on that.>> Bob, I noticed that line in the K3S manual about the CW/SSB duty > cycle. Does "100% - 10 min, 100 W key-down" mean that if you key down > without stop in CW mode it can go 10 minutes at 100 watts? That seems > like an awful lot.>> Where do the recommended TPO's for 6 meters, the 50% value for JT9, > and the 60C guideline for the PA temp come from?>> Thanks again,>> Frank K6FOD>>> On 4/4/20 6:22 AM, John Simmons wrote:>> Fred Cady's book:>>>> "There are four fans speeds that turn on at different temperatures.">> "If the temperature reaches 84 degrees C the KPA3 will be bypassed >> until the temperature falls to stop any damage as a last-ditch backup >> measure to protect your expensive power transistors from the excess >> heat.">>>> -de John NI0K>>>>>> Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM:>>> Frank:>>>>>> The duty cycle for the transmitter, as stated in the manual, is; CW >>> and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient. Do >>> note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 >>> watts {52 - 54 MHz}>>>>>> The duty cycle for JT-9, 1 minute transmit, 1 minute receive would >>> be 50%. I frequently run 100 watts on WSJT-X FT-8 with no issues. >>> Just pay attention to PA temperature. It should be 60 C or less. >>> Also this is with FANS in the automatic mode.>>>>>> 73>>>>>> Bob, K4TAX>>>>>>>>> On 4/3/2020 4:18 PM, Frank O'Donnell wrote:>>>> I've been using JT9 mode on 630m this winter with my K3S outputting >>>> to an external class D amp.>>>>>>>> Now I'm interested in trying some JT9 QSOs with some people >>>> currently operating on 160m. For me this would mean outputting >>>> directly from the K3S (with internal tuner) to the antenna.>>>>>>>> Given the 1-minute cycle time for JT9, are there recommendations >>>> (official from Elecraft, or otherwise) on maximum power to use in a >>>> situation like this? And/or, is the answer dependent on the SWR I >>>> can achieve with the antenna?>>>>>>>> Thanks and 73,>>>>>>>> Frank K6FOD>> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft at mailman.qth.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 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 brianchapnick at rogers.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 Sun Apr 5 00:25:30 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sat, 4 Apr 2020 21:25:30 -0700 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: <20200405040313.63395149B5B3@mail.qsl.net> References: <20200405040313.63395149B5B3@mail.qsl.net> Message-ID: <68f4fddc-26b7-63e9-1fcf-975cf20bfafa@audiosystemsgroup.com> On 4/4/2020 9:01 PM, brianchapnick wrote: > This discussion fascinates me only in that I wonder why you are using so much power for weak signal modes? 5 or 10 watts should be plenty even with a compromised antenna and poor band conditions......or am I missing somthing. Yes. "Weak signal" does NOT mean low power. "Weak signal" is define by the path, the frequency, noise levels on each end, and antennas. When I'm trying to work EU on 160 and 80 from my QTH near San Francisco, I'm running legal limit. When I'm working double-hop (or more hops) E-skip on 6M, and meteor scatter on 6M, I'm running legal limit. And when I'm running power like that, I almost never fill up the band with CQs. Don't get me wrong -- I have >170 countries worked QRP, DXCC on 20 and 15 QRP, all CW or SSB. I rarely run FT8 on other bands, although I've been doing it a bit on 60M and 30M, and I don't run much power there. There is a time and place for everything. :) 73, Jim K9YC From dave at nk7z.net Sun Apr 5 00:59:31 2020 From: dave at nk7z.net (Dave Cole) Date: Sat, 4 Apr 2020 21:59:31 -0700 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: <20200405040247.6CF80149B5BE@mail.qsl.net> References: <20200405040247.6CF80149B5BE@mail.qsl.net> Message-ID: <08244a24-3721-ab94-7bf5-67aa6f87841c@nk7z.net> The moonbounce boys use a KW or more... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/4/20 9:01 PM, brianchapnick wrote: > This discussion fascinates me only in that I wonder why you are using so much power for weak signal modes? 5 or 10 watts should be plenty even with a compromised antenna and poor band conditions......or am I missing somthing.Brian VE3GMZ?Sent from my Samsung Galaxy smartphone. > -------- Original message --------From: Bob McGraw K4TAX Date: 2020-04-04 8:19 p.m. (GMT-05:00) To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Max power for JT9 with K3S 100? Frank et al;Just quoted what is in the K3S manual.?? No interpretation provided.?? I agree that 100 watts key down is a lot for a SSB amplifier running in CW mode. ? To me that says 100 watts for 10 minutes and then RX for 10 minutes.?? Otherwise equal TX and RX times. ? Who does that?And if one is running "100 watts" then running CW or SSB for 10 minutes might be the limit.? Just speculation.?? On AM I might talk for 10 minutes but that is at 25% rated power output for carrier, yet it is 100 watts PEP.?? The 60 C is MY guideline. The KPA3A will shut down about 85 C or so.On 6M I run my KPA500 at about 300 to 400 watts.? The K3S is running about 25 to 30 watts on 6M.?? At this point I'm watching the KPA500 temperature.There is NO DX worth blowing a PA either in the K3S or the KPA500.??? But I know guys that will blow things up, pushing things to the max and beyond? trying to work that DX station.? I say bah humbug to that!I just pay attention to the PA temp, specially when running digital modes. Likewise for the KPA500.73Bob, K4TAXOn 4/4/2020 3:41 PM, Frank O'Donnell wrote:> Thanks for the replies.>> I've enabled the PA temp display (currently showing 22C right after > power-up but before transmitting), and will keep an eye on that.>> Bob, I noticed that line in the K3S manual about the CW/SSB duty > cycle. Does "100% - 10 min, 100 W key-down" mean that if you key down > without stop in CW mode it can go 10 minutes at 100 watts? That seems > like an awful lot.>> Where do the recommended TPO's for 6 meters, the 50% value for JT9, > and the 60C guideline for the PA temp come from?>> Thanks again,>> Frank K6FOD>>> On 4/4/20 6:22 AM, John Simmons wrote:>> Fred Cady's book:>>>> "There are four fans speeds that turn on at different temperatures.">> "If the temperature reaches 84 degrees C the KPA3 will be bypassed >> until the temperature falls to stop any damage as a last-ditch backup >> measure to protect your expensive power transistors from the excess >> heat.">>>> -de John NI0K>>>>>> Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM:>>> Frank:>>>>>> The duty cycle for the transmitter, as stated in the manual, is;? CW >>> and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient.?? Do >>> note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 >>> watts {52 - 54 MHz}>>>>>> The duty cycle for JT-9, 1 minute transmit, 1 minute receive would >>> be 50%.?? I frequently run 100 watts on WSJT-X FT-8 with no issues.? >>> Just pay attention to PA temperature.? It should be 60 C or less.?? >>> Also this is with FANS in the automatic mode.>>>>>> 73>>>>>> Bob, K4TAX>>>>>>>>> On 4/3/2020 4:18 PM, Frank O'Donnell wrote:>>>> I've been using JT9 mode on 630m this winter with my K3S outputting >>>> to an external class D amp.>>>>>>>> Now I'm interested in trying some JT9 QSOs with some people >>>> currently operating on 160m. For me this would mean outputting >>>> directly from the K3S (with internal tuner) to the antenna.>>>>>>>> Given the 1-minute cycle time for JT9, are there recommendations >>>> (official from Elecraft, or otherwise) on maximum power to use in a >>>> situation like this? And/or, is the answer dependent on the SWR I >>>> can achieve with the antenna?>>>>>>>> Thanks and 73,>>>>>>>> Frank K6FOD>> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft at mailman.qth.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 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 brianchapnick at rogers.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 w4my at reagan.com Sun Apr 5 08:24:45 2020 From: w4my at reagan.com (Marty) Date: Sun, 5 Apr 2020 08:24:45 -0400 Subject: [Elecraft] =?utf-8?b?SzIgRmxhc2hpbmcg4oCcRuKAnSBNb2Rl?= Message-ID: On my K2 I was playing around with the PF1 and PF2 buttons to put a different shortcut in. I must have fat fingered something because now the mode indicator is slowly alternately flashing ?F? and ?c? in CW mode. I looked on page 84 of the manual where all the various indications of the mode digit are described, ?F? is not included. I?m continuing to look in my manual, but if anyone can tell me what that means I?d be grateful. The radio is working fine otherwise. 73 Marty / W4MY From brianchapnick at rogers.com Sun Apr 5 09:09:02 2020 From: brianchapnick at rogers.com (brianchapnick at rogers.com) Date: Sun, 05 Apr 2020 09:09:02 -0400 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: Message-ID: My only rig is a kx3 so I have no experience at high power. With digital modes, does it matter at the receiving end whether the signal is -15db or 1db? Will not both signals be decoded the same way? With high power is it your practice to start with lower levels and work your way up or do you go for broke from the start? I understand the advantage of higher power with modes that you actually have to use your ears to make sense of things. Brian VE3GMZ Sent via BlackBerry Hub+ Inbox for Android ? Original Message ? From: rick.nk7i at gmail.com Sent: April 5, 2020 12:13 a.m. To: brianchapnick at rogers.com Cc: rmcgraw at blomand.net; Elecraft at mailman.qth.net Subject: Re: [Elecraft] Max power for JT9 with K3S 100? Because it?s weak signal at the receiving end; you use what power it takes to succeed in making the contact, up to the legal limit. On 160M, 1500 watts out is common. Rick NK7I Smell Czech corruptions are inevitable > On Apr 4, 2020, at 9:02 PM, brianchapnick wrote: > > ?This discussion fascinates me only in that I wonder why you are using so much power for weak signal modes? 5 or 10 watts should be plenty even with a compromised antenna and poor band conditions......or am I missing somthing.Brian VE3GMZ Sent from my Samsung Galaxy smartphone. > -------- Original message --------From: Bob McGraw K4TAX Date: 2020-04-04? 8:19 p.m.? (GMT-05:00) To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Max power for JT9 with K3S 100? Frank et al;Just quoted what is in the K3S manual.?? No interpretation provided.?? I agree that 100 watts key down is a lot for a SSB amplifier running in CW mode.?? To me that says 100 watts for 10 minutes and then RX for 10 minutes.?? Otherwise equal TX and RX times.?? Who does that?And if one is running "100 watts" then running CW or SSB for 10 minutes might be the limit.? Just speculation.?? On AM I might talk for 10 minutes but that is at 25% rated power output for carrier, yet it is 100 watts PEP.?? The 60 C is MY guideline. The KPA3A will shut down about 85 C or so.On 6M I run my KPA500 at about 300 to 400 watts.? The K3S is running about 25 to 30 watts on 6M.?? At this point I'm watching the KPA500 temperature.There is NO DX worth blowing a PA either in the K3S or the KPA500.??? But I know guys that will blow things up, pushing things to the max and beyond? trying to work that DX station.? I say bah humbug to that!I just pay attention to the PA temp, specially when running digital modes. Likewise for the KPA500.73Bob, K4TAXOn 4/4/2020 3:41 PM, Frank O'Donnell wrote:> Thanks for the replies.>> I've enabled the PA temp display (currently showing 22C right after > power-up but before transmitting), and will keep an eye on that.>> Bob, I noticed that line in the K3S manual about the CW/SSB duty > cycle. Does "100% - 10 min, 100 W key-down" mean that if you key down > without stop in CW mode it can go 10 minutes at 100 watts? That seems > like an awful lot.>> Where do the recommended TPO's for 6 meters, the 50% value for JT9, > and the 60C guideline for the PA temp come from?>> Thanks again,>> Frank K6FOD>>> On 4/4/20 6:22 AM, John Simmons wrote:>> Fred Cady's book:>>>> "There are four fans speeds that turn on at different temperatures.">> "If the temperature reaches 84 degrees C the KPA3 will be bypassed >> until the temperature falls to stop any damage as a last-ditch backup >> measure to protect your expensive power transistors from the excess >> heat.">>>> -de John NI0K>>>>>> Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM:>>> Frank:>>>>>> The duty cycle for the transmitter, as stated in the manual, is;? CW >>> and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient.?? Do >>> note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 >>> watts {52 - 54 MHz}>>>>>> The duty cycle for JT-9, 1 minute transmit, 1 minute receive would >>> be 50%.?? I frequently run 100 watts on WSJT-X FT-8 with no issues.? >>> Just pay attention to PA temperature.? It should be 60 C or less.?? >>> Also this is with FANS in the automatic mode.>>>>>> 73>>>>>> Bob, K4TAX>>>>>>>>> On 4/3/2020 4:18 PM, Frank O'Donnell wrote:>>>> I've been using JT9 mode on 630m this winter with my K3S outputting >>>> to an external class D amp.>>>>>>>> Now I'm interested in trying some JT9 QSOs with some people >>>> currently operating on 160m. For me this would mean outputting >>>> directly from the K3S (with internal tuner) to the antenna.>>>>>>>> Given the 1-minute cycle time for JT9, are there recommendations >>>> (official from Elecraft, or otherwise) on maximum power to use in a >>>> situation like this? And/or, is the answer dependent on the SWR I >>>> can achieve with the antenna?>>>>>>>> Thanks and 73,>>>>>>>> Frank K6FOD>> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft at mailman.qth.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 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 brianchapnick at rogers.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 brianchapnick at rogers.com Sun Apr 5 09:09:02 2020 From: brianchapnick at rogers.com (brianchapnick at rogers.com) Date: Sun, 05 Apr 2020 09:09:02 -0400 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: Message-ID: My only rig is a kx3 so I have no experience at high power. With digital modes, does it matter at the receiving end whether the signal is -15db or 1db? Will not both signals be decoded the same way? With high power is it your practice to start with lower levels and work your way up or do you go for broke from the start? I understand the advantage of higher power with modes that you actually have to use your ears to make sense of things. Brian VE3GMZ Sent via BlackBerry Hub+ Inbox for Android ? Original Message ? From: rick.nk7i at gmail.com Sent: April 5, 2020 12:13 a.m. To: brianchapnick at rogers.com Cc: rmcgraw at blomand.net; Elecraft at mailman.qth.net Subject: Re: [Elecraft] Max power for JT9 with K3S 100? Because it?s weak signal at the receiving end; you use what power it takes to succeed in making the contact, up to the legal limit. On 160M, 1500 watts out is common. Rick NK7I Smell Czech corruptions are inevitable > On Apr 4, 2020, at 9:02 PM, brianchapnick wrote: > > ?This discussion fascinates me only in that I wonder why you are using so much power for weak signal modes? 5 or 10 watts should be plenty even with a compromised antenna and poor band conditions......or am I missing somthing.Brian VE3GMZ Sent from my Samsung Galaxy smartphone. > -------- Original message --------From: Bob McGraw K4TAX Date: 2020-04-04? 8:19 p.m.? (GMT-05:00) To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Max power for JT9 with K3S 100? Frank et al;Just quoted what is in the K3S manual.?? No interpretation provided.?? I agree that 100 watts key down is a lot for a SSB amplifier running in CW mode.?? To me that says 100 watts for 10 minutes and then RX for 10 minutes.?? Otherwise equal TX and RX times.?? Who does that?And if one is running "100 watts" then running CW or SSB for 10 minutes might be the limit.? Just speculation.?? On AM I might talk for 10 minutes but that is at 25% rated power output for carrier, yet it is 100 watts PEP.?? The 60 C is MY guideline. The KPA3A will shut down about 85 C or so.On 6M I run my KPA500 at about 300 to 400 watts.? The K3S is running about 25 to 30 watts on 6M.?? At this point I'm watching the KPA500 temperature.There is NO DX worth blowing a PA either in the K3S or the KPA500.??? But I know guys that will blow things up, pushing things to the max and beyond? trying to work that DX station.? I say bah humbug to that!I just pay attention to the PA temp, specially when running digital modes. Likewise for the KPA500.73Bob, K4TAXOn 4/4/2020 3:41 PM, Frank O'Donnell wrote:> Thanks for the replies.>> I've enabled the PA temp display (currently showing 22C right after > power-up but before transmitting), and will keep an eye on that.>> Bob, I noticed that line in the K3S manual about the CW/SSB duty > cycle. Does "100% - 10 min, 100 W key-down" mean that if you key down > without stop in CW mode it can go 10 minutes at 100 watts? That seems > like an awful lot.>> Where do the recommended TPO's for 6 meters, the 50% value for JT9, > and the 60C guideline for the PA temp come from?>> Thanks again,>> Frank K6FOD>>> On 4/4/20 6:22 AM, John Simmons wrote:>> Fred Cady's book:>>>> "There are four fans speeds that turn on at different temperatures.">> "If the temperature reaches 84 degrees C the KPA3 will be bypassed >> until the temperature falls to stop any damage as a last-ditch backup >> measure to protect your expensive power transistors from the excess >> heat.">>>> -de John NI0K>>>>>> Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM:>>> Frank:>>>>>> The duty cycle for the transmitter, as stated in the manual, is;? CW >>> and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient.?? Do >>> note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 >>> watts {52 - 54 MHz}>>>>>> The duty cycle for JT-9, 1 minute transmit, 1 minute receive would >>> be 50%.?? I frequently run 100 watts on WSJT-X FT-8 with no issues.? >>> Just pay attention to PA temperature.? It should be 60 C or less.?? >>> Also this is with FANS in the automatic mode.>>>>>> 73>>>>>> Bob, K4TAX>>>>>>>>> On 4/3/2020 4:18 PM, Frank O'Donnell wrote:>>>> I've been using JT9 mode on 630m this winter with my K3S outputting >>>> to an external class D amp.>>>>>>>> Now I'm interested in trying some JT9 QSOs with some people >>>> currently operating on 160m. For me this would mean outputting >>>> directly from the K3S (with internal tuner) to the antenna.>>>>>>>> Given the 1-minute cycle time for JT9, are there recommendations >>>> (official from Elecraft, or otherwise) on maximum power to use in a >>>> situation like this? And/or, is the answer dependent on the SWR I >>>> can achieve with the antenna?>>>>>>>> Thanks and 73,>>>>>>>> Frank K6FOD>> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft at mailman.qth.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 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 brianchapnick at rogers.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 dave at w8fgu.com Sun Apr 5 09:11:56 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Sun, 05 Apr 2020 13:11:56 +0000 Subject: [Elecraft] =?utf-8?b?SzIgRmxhc2hpbmcg4oCcRuKAnSBNb2Rl?= In-Reply-To: References: <1714a58e500.2852.96e80410205cf590e45b6250d389e5fb@w8fgu.com> Message-ID: Marty, It's not really a menu item. If you are still in Fast Play mode (flashing "F"), then press the PF key that it is assigned to and it will toggle it off. FPon is a function that can be assigned to one of the PF keys. You need to use the MENU to edit the PF key entry and reassign it from the FPon function. You can see how to do all of this on page 104 of the current manual. 73, Dave W8FGU ------ Original Message ------ From: "Marty" To: "Dave Van Wallaghen" Sent: 4/5/2020 8:59:53 AM Subject: Re: [Elecraft] K2 Flashing ?F? Mode >Thanks Dave. > >I?ve never used (or want) the fast play option. I will look for option FPon and try to set it to FPoff > >Stay well > >73 Marty / W4MY > >> On Apr 5, 2020, at 08:37, Dave Van Wallaghen wrote: >> >> Hi Marty, >> >> You have somehow assigned the Fast Play option, used to play a recorded message to one of your PF keys. The function is "FPon". Try finding out which button it is by pressing one or the other and it will toggle Fast Play off. You will then want to reprogram that PF button to something else desired unless you want to use the Fast Play option. >> >> Hope this helps... >> >> 73, >> Dave, W8FGU >> >>> On April 5, 2020 08:25:46 Marty via Elecraft wrote: >>> >>> On my K2 I was playing around with the PF1 and PF2 buttons to put a different shortcut in. I must have fat fingered something because now the mode indicator is slowly alternately flashing ?F? and ?c? in CW mode. >>> >>> I looked on page 84 of the manual where all the various indications of the mode digit are described, ?F? is not included. >>> >>> I?m continuing to look in my manual, but if anyone can tell me what that means I?d be grateful. The radio is working fine otherwise. >>> >>> 73 Marty / W4MY >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 rmcgraw at blomand.net Sun Apr 5 09:31:32 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 5 Apr 2020 08:31:32 -0500 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: <20200405040207453@smtp.email-protect.gosecure.net> References: <20200405040207453@smtp.email-protect.gosecure.net> Message-ID: <0C144522-49F9-473D-A9A9-A3215743B971@blomand.net> A weak signal mode does not imply a low power mode. Bob, K4TAX Sent from my iPhone > On Apr 4, 2020, at 11:15 PM, brianchapnick wrote: > > ? > This discussion fascinates me only in that I wonder why you are using so much power for weak signal modes? 5 or 10 watts should be plenty even with a compromised antenna and poor band conditions......or am I missing somthing. > > Brian VE3GMZ > > > > > > Sent from my Samsung Galaxy smartphone. > > > -------- Original message -------- > From: Bob McGraw K4TAX > Date: 2020-04-04 8:19 p.m. (GMT-05:00) > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Max power for JT9 with K3S 100? > > Frank et al; > > > Just quoted what is in the K3S manual. No interpretation provided. I > agree that 100 watts key down is a lot for a SSB amplifier running in CW > mode. To me that says 100 watts for 10 minutes and then RX for 10 > minutes. Otherwise equal TX and RX times. Who does that? > > And if one is running "100 watts" then running CW or SSB for 10 minutes > might be the limit. Just speculation. On AM I might talk for 10 > minutes but that is at 25% rated power output for carrier, yet it is 100 > watts PEP. The 60 C is MY guideline. The KPA3A will shut down about 85 > C or so. > > On 6M I run my KPA500 at about 300 to 400 watts. The K3S is running > about 25 to 30 watts on 6M. At this point I'm watching the KPA500 > temperature. > > There is NO DX worth blowing a PA either in the K3S or the KPA500. > But I know guys that will blow things up, pushing things to the max and > beyond trying to work that DX station. I say bah humbug to that! > > I just pay attention to the PA temp, specially when running digital > modes. Likewise for the KPA500. > > 73 > > Bob, K4TAX > > > On 4/4/2020 3:41 PM, Frank O'Donnell wrote: > > Thanks for the replies. > > > > I've enabled the PA temp display (currently showing 22C right after > > power-up but before transmitting), and will keep an eye on that. > > > > Bob, I noticed that line in the K3S manual about the CW/SSB duty > > cycle. Does "100% - 10 min, 100 W key-down" mean that if you key down > > without stop in CW mode it can go 10 minutes at 100 watts? That seems > > like an awful lot. > > > > Where do the recommended TPO's for 6 meters, the 50% value for JT9, > > and the 60C guideline for the PA temp come from? > > > > Thanks again, > > > > Frank K6FOD > > > > > > On 4/4/20 6:22 AM, John Simmons wrote: > >> Fred Cady's book: > >> > >> "There are four fans speeds that turn on at different temperatures." > >> "If the temperature reaches 84 degrees C the KPA3 will be bypassed > >> until the temperature falls to stop any damage as a last-ditch backup > >> measure to protect your expensive power transistors from the excess > >> heat." > >> > >> -de John NI0K > >> > >> > >> Bob McGraw K4TAX wrote on 4/3/2020 6:39 PM: > >>> Frank: > >>> > >>> The duty cycle for the transmitter, as stated in the manual, is; CW > >>> and SSB modes, 100% - 10 min, 100 W key-down at 25C ambient. Do > >>> note that 6M has reduce power values of 85 watts {51 -52 MHz} or 70 > >>> watts {52 - 54 MHz} > >>> > >>> The duty cycle for JT-9, 1 minute transmit, 1 minute receive would > >>> be 50%. I frequently run 100 watts on WSJT-X FT-8 with no issues. > >>> Just pay attention to PA temperature. It should be 60 C or less. > >>> Also this is with FANS in the automatic mode. > >>> > >>> 73 > >>> > >>> Bob, K4TAX > >>> > >>> > >>> On 4/3/2020 4:18 PM, Frank O'Donnell wrote: > >>>> I've been using JT9 mode on 630m this winter with my K3S outputting > >>>> to an external class D amp. > >>>> > >>>> Now I'm interested in trying some JT9 QSOs with some people > >>>> currently operating on 160m. For me this would mean outputting > >>>> directly from the K3S (with internal tuner) to the antenna. > >>>> > >>>> Given the 1-minute cycle time for JT9, are there recommendations > >>>> (official from Elecraft, or otherwise) on maximum power to use in a > >>>> situation like this? And/or, is the answer dependent on the SWR I > >>>> can achieve with the antenna? > >>>> > >>>> Thanks and 73, > >>>> > >>>> Frank K6FOD > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 brianchapnick at rogers.com From w4my at reagan.com Sun Apr 5 10:05:12 2020 From: w4my at reagan.com (Marty) Date: Sun, 5 Apr 2020 10:05:12 -0400 Subject: [Elecraft] =?utf-8?b?SzIgRmxhc2hpbmcg4oCcRuKAnSBNb2Rl?= In-Reply-To: References: Message-ID: <08FC7D8D-9F8B-4D8F-8908-CF0B3162D986@reagan.com> Thanks to all for the replies and help. I got it. Enjoying the K2 while pressing it into service waiting for my K4D (I?m on the first run paid up group) and getting my station accessories ?Elecraft-ized? after selling my beloved TT Orion2. (ie., mic plug required) 73 Marty / W4MY > On Apr 5, 2020, at 08:24, Marty via Elecraft wrote: > > On my K2 I was playing around with the PF1 and PF2 buttons to put a different shortcut in. I must have fat fingered something because now the mode indicator is slowly alternately flashing ?F? and ?c? in CW mode. > > I looked on page 84 of the manual where all the various indications of the mode digit are described, ?F? is not included. > > I?m continuing to look in my manual, but if anyone can tell me what that means I?d be grateful. The radio is working fine otherwise. > > 73 Marty / W4MY > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com Sun Apr 5 11:28:04 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Sun, 5 Apr 2020 08:28:04 -0700 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: Message-ID: <88290A07-D6F9-482E-91E8-23E96F53335F@gmail.com> Yes it matters. The short version is that your receiving ability may exceed that of the other stations noise floor. Just because my noise floor is generally -130 or quieter doesn?t mean their noise is equally quiet. If they can?t reduce noise further, you need to present more signal. With my quiet environment I base my output power on the signal I receive, if loud, low output; if weak, ramp it up. Rick NK7I Smell Czech corruptions are inevitable > On Apr 5, 2020, at 6:09 AM, brianchapnick at rogers.com wrote: > > ?My only rig is a kx3 so I have no experience at high power. With digital modes, does it matter at the receiving end whether the signal is -15db or 1db? Will not both signals be decoded the same way? With high power is it your practice to start with lower levels and work your way up or do you go for broke from the start? I understand the advantage of higher power with modes that you actually have to use your ears to make sense of things. > > Brian VE3GMZ > > > > Sent via BlackBerry Hub+ Inbox for Android From a.durbin at msn.com Sun Apr 5 13:03:15 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 5 Apr 2020 17:03:15 +0000 Subject: [Elecraft] Max power for JT9 with K3S 100? Message-ID: "With high power is it your practice to start with lower levels and work your way up or do you go for broke from the start?" For FT8 I make the initial call with the power that I think is required for the propagation path. If the station replies I may increase or reduce power based on their report. If the station does not reply I look at PSKReporter to find reports from the station I called or from others in the same area. If no one in the area reported my signal I may increase power. My station controller automatically sets "FT8 power" on band change if that option is enabled. "FT8 power" is not max power on any band. It is set for each band based on antenna and experience of propagation conditions for that band. I can reduce power, or increase to band max power, whenever it is appropriate but I enjoy making QSO with the lowest power I can. Some people think that WSJT-X modes require no skill but it's not just blast and log. Those who put some thought into operating technique may make the QSO where bigger stations fail. I've been using WSJT-X since before version 1.0 was released but still have worked more DX using CW than any digital mode in the last 8 or so years. Andy, k3wyc From brianchapnick at rogers.com Sun Apr 5 14:27:08 2020 From: brianchapnick at rogers.com (brianchapnick at rogers.com) Date: Sun, 05 Apr 2020 14:27:08 -0400 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: Message-ID: I'm glad I asked the question. Thanks for your thoughtful replies. I'm a very casual QRP operator. I have used many of the digital modes, cw, ssb and FM too, but certainly not with the sophistication you suggest. There appears to be a lot more to it than I thought. Certainly food for thought. Again, thanks. Brian VE3GMZ Sent via BlackBerry Hub+ Inbox for Android ? Original Message ? From: a.durbin at msn.com Sent: April 5, 2020 1:05 p.m. To: elecraft at mailman.qth.net Subject: [Elecraft] Max power for JT9 with K3S 100? "With high power is it your practice to start with lower levels and work your way up or do you go for broke from the start?" For FT8 I make the initial call with the power that I think is required for the propagation path.? If the station replies I may increase or reduce power based on their report.? If the station does not reply I look at PSKReporter to find reports from the station I called or from others in the same area.? If no one in the area reported my signal I may increase power. My station controller automatically sets "FT8 power" on band change if that option is enabled.? "FT8 power" is not max power on any band.? It is set for each band based on antenna and experience of propagation conditions for that band.?? I can reduce power, or increase to band max power, whenever it is appropriate but I enjoy making QSO with the lowest power I can. Some people think that WSJT-X modes require no skill but it's not just blast and log.? Those who put some thought into operating technique may make the QSO where bigger stations fail. I've been using WSJT-X since before version 1.0 was released but still have worked more DX using CW than any digital mode in the last 8 or so years. 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 brianchapnick at rogers.com From f8acf56 at gmail.com Sun Apr 5 15:12:19 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Sun, 5 Apr 2020 21:12:19 +0200 Subject: [Elecraft] alignement KPA100 Message-ID: hello to all , I am subscribed to the elecraft list, I receive the list well but I am unable to send messages would it be possible for you to see what's going on? thank you in advance I would like to continue my K2 after 3 years of stopping as i need to ask questions thanks again -- 73 , F8ACF56 From rmcgraw at blomand.net Sun Apr 5 15:53:57 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 5 Apr 2020 14:53:57 -0500 Subject: [Elecraft] Max power for JT9 with K3S 100? In-Reply-To: References: Message-ID: <32BD9451-F65B-4D3D-BA17-F3FD9BD56751@blomand.net> That is the nice thing about ham radio. There is a mode, frequency, means and group that usually fulfills ones desires within the hobby. Bob, K4TAX Sent from my iPhone > On Apr 5, 2020, at 1:42 PM, brianchapnick at rogers.com wrote: > > ?I'm glad I asked the question. Thanks for your thoughtful replies. I'm a very casual QRP operator. I have used many of the digital modes, cw, ssb and FM too, but certainly not with the sophistication you suggest. There appears to be a lot more to it than I thought. Certainly food for thought. > Again, thanks. > > Brian VE3GMZ > > > > Sent via BlackBerry Hub+ Inbox for Android > > > Original Message > > > From: a.durbin at msn.com > Sent: April 5, 2020 1:05 p.m. > To: elecraft at mailman.qth.net > Subject: [Elecraft] Max power for JT9 with K3S 100? > > > "With high power is it your practice to start with lower levels and work your way up or do you go for broke from the start?" > > For FT8 I make the initial call with the power that I think is required for the propagation path. If the station replies I may increase or reduce power based on their report. If the station does not reply I look at PSKReporter to find reports from the station I called or from others in the same area. If no one in the area reported my signal I may increase power. > > My station controller automatically sets "FT8 power" on band change if that option is enabled. "FT8 power" is not max power on any band. It is set for each band based on antenna and experience of propagation conditions for that band. I can reduce power, or increase to band max power, whenever it is appropriate but I enjoy making QSO with the lowest power I can. > > Some people think that WSJT-X modes require no skill but it's not just blast and log. Those who put some thought into operating technique may make the QSO where bigger stations fail. > > I've been using WSJT-X since before version 1.0 was released but still have worked more DX using CW than any digital mode in the last 8 or so years. > > 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 brianchapnick at rogers.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 donwilh at embarqmail.com Sun Apr 5 16:09:47 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 5 Apr 2020 16:09:47 -0400 Subject: [Elecraft] alignement KPA100 In-Reply-To: References: Message-ID: <486be450-99cb-59d0-e39b-710845cabdf1@embarqmail.com> Your post made it to the reflector OK. You must use plain text, HTML will be rejected. Direct email to elecraft at mailman.qth.net. What is your problem with the K2 and KPA100? The instructions for alignment of the KPA100 are in the manual. 73, Don W3FPR On 4/5/2020 3:12 PM, Christophe aufacf wrote: > hello to all , > > I am subscribed to the elecraft list, I receive the list well but I am > unable to send messages > > would it be possible for you to see what's going on? > > thank you in advance I would like to continue my K2 after 3 years of > stopping > > as i need to ask questions thanks again > > From 99sunset at gmail.com Sun Apr 5 16:41:27 2020 From: 99sunset at gmail.com (Steve Hall) Date: Sun, 5 Apr 2020 16:41:27 -0400 Subject: [Elecraft] 40 meter net 4-5-2020 Message-ID: 7.282 kHz 1845Z Thanks to all checking in and those assisting with relays. Band was very selective as to geographical areas covered but did very well, covering areas not available on 20 meters. WM6P Steve GA K3s/KPA500 K8NU Carl OH K3s N0MPM Mike IA K3s N4NRW Roger SC K3 WB9JNZ Eric IL K3 NC0JW Jim CO KX3 K6VWE Stan MI K3/KPA1500 AD8DE Bob OH FT950 KO4CKB/AG James VA TS450s W8LMG Mac WV Flex6300 VE3IDS Don ON Swan350 From cyaffey at columbus.rr.com Sun Apr 5 16:50:33 2020 From: cyaffey at columbus.rr.com (Carl Yaffey) Date: Sun, 5 Apr 2020 16:50:33 -0400 Subject: [Elecraft] Hum on KPA1500 Message-ID: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> I have developed a loud hum with the KPA1500 on 17m and 15m. A slight hum on 20m. All other bands, no hum. It?s power dependent. Loud at full power, hum reduces as power is lowered. Not too bad at 500w. Suggestions? 73. Carl, K8NU. From wa2lbi at gmail.com Sun Apr 5 16:59:36 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Sun, 5 Apr 2020 16:59:36 -0400 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> Message-ID: Carl, Does this also happen when directly connected to a dummy load? If not then maybe you have an RFI problem. Check all antenna connections and jumpers. GL! Ken WA2LBI On Sun, Apr 5, 2020 at 4:51 PM Carl Yaffey wrote: > I have developed a loud hum with the KPA1500 on 17m and 15m. A slight hum > on 20m. All other bands, no hum. > It?s power dependent. Loud at full power, hum reduces as power is lowered. > Not too bad at 500w. > Suggestions? > 73. > > Carl, K8NU. > > From xdavid at cis-broadband.com Sun Apr 5 17:04:06 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Sun, 5 Apr 2020 14:04:06 -0700 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> Message-ID: <737943f1-4a45-a98d-7484-1c2154f45c43@cis-broadband.com> You'd probably get more useful replies if you mentioned whether the hum was in your transmitted signal or was audio hum in the shack. Dave? AB7E On 4/5/2020 1:50 PM, Carl Yaffey wrote: > I have developed a loud hum with the KPA1500 on 17m and 15m. A slight hum on 20m. All other bands, no hum. > It?s power dependent. Loud at full power, hum reduces as power is lowered. Not too bad at 500w. > Suggestions? > 73. > > Carl, K8NU. From cyaffey at columbus.rr.com Sun Apr 5 17:06:30 2020 From: cyaffey at columbus.rr.com (Carl Yaffey) Date: Sun, 5 Apr 2020 17:06:30 -0400 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> Message-ID: <22D7987D-2146-40E6-8858-8C6BCD44F4F7@columbus.rr.com> Just tried a dummy load. No hum. So must be RF. On to the hunt! Thanks, folks. Carl K8NU > On Apr 5, 2020, at 4:59 PM, Ken Winterling wrote: > > Carl, > > Does this also happen when directly connected to a dummy load? If not then maybe you have an RFI problem. Check all antenna connections and jumpers. > > GL! > > Ken > WA2LBI > > > > On Sun, Apr 5, 2020 at 4:51 PM Carl Yaffey > wrote: > I have developed a loud hum with the KPA1500 on 17m and 15m. A slight hum on 20m. All other bands, no hum. > It?s power dependent. Loud at full power, hum reduces as power is lowered. Not too bad at 500w. > Suggestions? > 73. > > Carl, K8NU. > From k2qmf at juno.com Sun Apr 5 17:06:56 2020 From: k2qmf at juno.com (Salvatore Ted K2QMF) Date: Sun, 05 Apr 2020 17:06:56 -0400 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <029E628F-9995-4CF8-ADE1-032B6544E167@columbus.rr.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <029E628F-9995-4CF8-ADE1-032B6544E167@columbus.rr.com> Message-ID: >From the Power Supply or KPA1500?? Or Both?? On 4/5/2020 5:03:51 PM, Carl Yaffey wrote: Hum is in the shack.? On Apr 5, 2020, at 4:58 PM, Salvatore Ted K2QMF wrote: Hum on your Transmit Signal?? Or hum in the shack?? Where is the hum coming from?? On 4/5/2020 4:51:23 PM, Carl Yaffey wrote: I have developed a loud hum with the KPA1500 on 17m and 15m. A slight hum on 20m. All other bands, no hum. It?s power dependent. Loud at full power, hum reduces as power is lowered. Not too bad at 500w. Suggestions? 73. Carl, K8NU. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft [http://mailman.qth.net/mailman/listinfo/elecraft] Help: http://mailman.qth.net/mmfaq.htm [http://mailman.qth.net/mmfaq.htm] Post: mailto:Elecraft at mailman.qth.net [mailto:Elecraft at mailman.qth.net] This list hosted by: http://www.qsl.net [http://www.qsl.net] Please help support this email list: http://www.qsl.net/donate.html [http://www.qsl.net/donate.html] Message delivered to k2qmf at juno.com [mailto:k2qmf at juno.com] From cyaffey at columbus.rr.com Sun Apr 5 17:33:39 2020 From: cyaffey at columbus.rr.com (Carl Yaffey) Date: Sun, 5 Apr 2020 17:33:39 -0400 Subject: [Elecraft] KPA1500 hum - problem solved Message-ID: <8F8A5590-225F-4E36-9D32-43F92B243514@columbus.rr.com> No hum using a dummy load. No hum using a dipole. Hum only with my all band vertical. Thanks for the suggestions. 73 K8NU From radiok4ia at gmail.com Sun Apr 5 17:37:28 2020 From: radiok4ia at gmail.com (Buck) Date: Sun, 5 Apr 2020 17:37:28 -0400 Subject: [Elecraft] KPA1500 hum - problem solved In-Reply-To: <8F8A5590-225F-4E36-9D32-43F92B243514@columbus.rr.com> References: <8F8A5590-225F-4E36-9D32-43F92B243514@columbus.rr.com> Message-ID: I would bet your coax shield is acting like a radial and bringing RF back into the shack. Need a choke. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/5/2020 5:33 PM, Carl Yaffey wrote: > No hum using a dummy load. > No hum using a dipole. > Hum only with my all band vertical. > Thanks for the suggestions. > 73 > K8NU > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 cyaffey at gmail.com Sun Apr 5 17:57:15 2020 From: cyaffey at gmail.com (Carl Yaffey) Date: Sun, 5 Apr 2020 17:57:15 -0400 Subject: [Elecraft] KPA1500 hum - problem solved In-Reply-To: References: <8F8A5590-225F-4E36-9D32-43F92B243514@columbus.rr.com> Message-ID: <3BF7411B-A106-44B5-9CB6-030643381522@gmail.com> It turned out to be using the 4-position Alpha-Delta coax switch. No problem until I connect both the vertical and the dipole to it. > On Apr 5, 2020, at 5:37 PM, Buck wrote: > > I would bet your coax shield is acting like a radial and bringing RF back into the shack. Need a choke. > Carl Yaffey K8NU 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.com http://www.bluesswing.com Https://www.columbusfolkmusicsociety.org http://www.timbrewolves.carl-yaffey.com http://www.folkramblers.carl-yaffey.com Http:www.clintonvillegrass.com From a.durbin at msn.com Sun Apr 5 18:04:31 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 5 Apr 2020 22:04:31 +0000 Subject: [Elecraft] KPA1500 hum - problem solved Message-ID: "No hum using a dummy load. No hum using a dipole. Hum only with my all band vertical." I don't understand how that information results in "problem solved". The problem didn't go away. It could perhaps be RFI but isn't it more likely that the hum is dependent on the load presented by the antenna system? Does the hum come the PSU or the RF unit? KPA500 hum level is directly related to PA current which is, in turn, related to output power and PA efficiency. PA efficiently is strongly dependent on antenna system load therefor hum level is dependent on antenna system load. A bored and cynical observer might perhaps say that KPA500 hum is "normal" so why wouldn't the KPA1500 be expected to hum. Perhaps you should be investigating the conditions for which it does not hum? 73, Andy, k3wyc From rmcgraw at blomand.net Sun Apr 5 18:17:44 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 5 Apr 2020 17:17:44 -0500 Subject: [Elecraft] KPA1500 hum - problem solved In-Reply-To: References: Message-ID: If it worked correctly before then why would one need to add a choke? Check connections, feed line, matching unit, and radial ground system at the antenna. Bob, K4TAX Sent from my iPhone > On Apr 5, 2020, at 4:52 PM, Buck wrote: > > ?I would bet your coax shield is acting like a radial and bringing RF back into the shack. Need a choke. > > > k4ia, Buck > K3s# 11497 > Honor Roll 8B DXCC > EasyWayHamBooks.com > >> On 4/5/2020 5:33 PM, Carl Yaffey wrote: >> No hum using a dummy load. >> No hum using a dipole. >> Hum only with my all band vertical. >> Thanks for the suggestions. >> 73 >> K8NU >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 rmcgraw at blomand.net From rmcgraw at blomand.net Sun Apr 5 18:19:48 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 5 Apr 2020 17:19:48 -0500 Subject: [Elecraft] KPA1500 hum - problem solved In-Reply-To: <3BF7411B-A106-44B5-9CB6-030643381522@gmail.com> References: <3BF7411B-A106-44B5-9CB6-030643381522@gmail.com> Message-ID: <025082BE-1E2D-4996-A772-CA3690579263@blomand.net> If it was a switch in line to the vertical, I?d think you would observe a SWR increase when that antenna was selected. Bob, K4TAX Sent from my iPhone > On Apr 5, 2020, at 5:12 PM, Carl Yaffey wrote: > > ?It turned out to be using the 4-position Alpha-Delta coax switch. No problem until I connect both the vertical and the dipole to it. > >> On Apr 5, 2020, at 5:37 PM, Buck wrote: >> >> I would bet your coax shield is acting like a radial and bringing RF back into the shack. Need a choke. >> > > Carl Yaffey K8NU > 614 268 6353, Columbus OH > http://www.carl-yaffey.com > http://www.grassahol.com > http://www.bluesswing.com > Https://www.columbusfolkmusicsociety.org > http://www.timbrewolves.carl-yaffey.com > http://www.folkramblers.carl-yaffey.com > Http:www.clintonvillegrass.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 k2qmf at juno.com Sun Apr 5 18:22:54 2020 From: k2qmf at juno.com (Salvatore Ted K2QMF) Date: Sun, 05 Apr 2020 18:22:54 -0400 Subject: [Elecraft] KPA1500 Message-ID: Please disregard.... From jackbrindle at me.com Sun Apr 5 18:33:15 2020 From: jackbrindle at me.com (Jack Brindle) Date: Sun, 5 Apr 2020 15:33:15 -0700 Subject: [Elecraft] KPA1500 hum - problem solved In-Reply-To: References: Message-ID: When he added the amplifier, the return currents on the coax became much greater. The second problem is that the switch then added the return currents of the vertical to those induced into the dipole and made things worse. I see the need for chokes on BOTH antennas. Makes sure they are heavy duty. The best advice is in the choke handbook at K9YC?s web site. 73! Jack, W6FB > On Apr 5, 2020, at 3:17 PM, Bob McGraw K4TAX wrote: > > If it worked correctly before then why would one need to add a choke? > > Check connections, feed line, matching unit, and radial ground system at the antenna. > > Bob, K4TAX > > > Sent from my iPhone > >> On Apr 5, 2020, at 4:52 PM, Buck wrote: >> >> ?I would bet your coax shield is acting like a radial and bringing RF back into the shack. Need a choke. >> >> >> k4ia, Buck >> K3s# 11497 >> Honor Roll 8B DXCC >> EasyWayHamBooks.com >> >>> On 4/5/2020 5:33 PM, Carl Yaffey wrote: >>> No hum using a dummy load. >>> No hum using a dipole. >>> Hum only with my all band vertical. >>> Thanks for the suggestions. >>> 73 >>> K8NU >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 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 jim at audiosystemsgroup.com Sun Apr 5 19:13:07 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 5 Apr 2020 16:13:07 -0700 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> Message-ID: On 4/5/2020 1:50 PM, Carl Yaffey wrote: > I have developed a loud hum with the KPA1500 on 17m and 15m. A slight hum on 20m. All other bands, no hum. Because it's frequency dependent, I suspect some form of RFI. Start by making sure that everything in your station is properly bonded. http://k9yc.com/GroundingAndAudio.pdf If that doesn't fix it, add ferrite chokes as described in http://k9yc.com/KillingReceiveNoise.pdf While the second reference is about killing RX noise, the same principles apply to the problem you're having. But do the bonding first. One question though -- is what you hear HUM (pure 60 Hz) or BUZZ (triplen harmonics of 60 Hz, like 180, 360, 540, etc)? 73, Jim K9YC From jim at audiosystemsgroup.com Sun Apr 5 19:19:43 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 5 Apr 2020 16:19:43 -0700 Subject: [Elecraft] KPA1500 hum - problem solved In-Reply-To: References: <8F8A5590-225F-4E36-9D32-43F92B243514@columbus.rr.com> Message-ID: <777bf3eb-58f4-622e-436e-f3dc55021488@audiosystemsgroup.com> On 4/5/2020 2:37 PM, Buck wrote: > I would bet your coax shield is acting like a radial and bringing RF > back into the shack.? Need a choke. Yes -- the clue was the info about the switch. But it also indicates a lack of proper bonding. http://k9yc.com/2018Cookbook.pdf What model of vertical? Some designs require radials, some do not. 73, Jim K9YC From cyaffey at gmail.com Sun Apr 5 19:37:36 2020 From: cyaffey at gmail.com (Carl Yaffey) Date: Sun, 5 Apr 2020 19:37:36 -0400 Subject: [Elecraft] KPA1500 hum - problem solved In-Reply-To: <777bf3eb-58f4-622e-436e-f3dc55021488@audiosystemsgroup.com> References: <8F8A5590-225F-4E36-9D32-43F92B243514@columbus.rr.com> <777bf3eb-58f4-622e-436e-f3dc55021488@audiosystemsgroup.com> Message-ID: On Apr 5, 2020, at 7:19 PM, Jim Brown wrote: > > What model of vertical? Some designs require radials, some do not. Cushcraft R-8 1/2 wave vertical. No radials needed. > Carl Yaffey K8NU 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.com http://www.bluesswing.com Https://www.columbusfolkmusicsociety.org http://www.timbrewolves.carl-yaffey.com http://www.folkramblers.carl-yaffey.com Http:www.clintonvillegrass.com From donwilh at embarqmail.com Sun Apr 5 20:04:18 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 5 Apr 2020 20:04:18 -0400 Subject: [Elecraft] (Too much..) RF back and through the RX ANT OUT for external receiver In-Reply-To: <66c893591060d12694f5435b53928603@roccon.com> References: <66c893591060d12694f5435b53928603@roccon.com> Message-ID: <660224ff-84f6-44bd-b168-69679e2f6b1f@embarqmail.com> Graziano, I am not sure why the Colbri Nano cannot accept the K3 IF OUT. Tune it to 8215kHz and try again. The RX ANT out is only active if the RX ANT is selected, and is located behind the T/R switch, so it should be safe (see the K3 block diagram in the manual). 73, Don W3FPR On 4/4/2020 6:54 PM, Graziano Roccon (IW2NOY) wrote: > Hello, > > i ordered a Colibr? Nano USB SDR. > and i am thinkg to connect the Colibr? antenna through the RX ANT OT of > the K3s tu use the colibr? and his software like a panadapter for the K3s. > The colibr? can't accept "IF OUT", so i will use RX ANT OUT from XV3B to > give antenna signal to the Colibr?. > > But it seems, from some test i did with friends, that RX OUT is NOT well > or totally disconnected weh K3s goes in TX and some RF goes (or come > back) through the RX OUT. > I would like to know if someone knows how many "dbm" or watt could goes > through the RX OUT when the K3s is in TX with maximum power. > Too much RF can kill the the SDR receiver. > From vfo77 at inkbox.net Sun Apr 5 20:16:18 2020 From: vfo77 at inkbox.net (Frank O'Donnell) Date: Sun, 5 Apr 2020 17:16:18 -0700 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> Message-ID: <99ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> I'm not the OP, but can you remind us what buzz (multiple harmonics of 60 Hz) might signify? Thanks, Frank K6FOD On 4/5/20 4:13 PM, Jim Brown wrote: > One question though -- is what you hear HUM (pure 60 Hz) or BUZZ > (triplen harmonics of 60 Hz, like 180, 360, 540, etc)? From donwilh at embarqmail.com Sun Apr 5 20:24:26 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 5 Apr 2020 20:24:26 -0400 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only In-Reply-To: <021201d608f0$660b2cf0$322186d0$@cox.net> References: <021201d608f0$660b2cf0$322186d0$@cox.net> Message-ID: <57775b7c-dbb9-23ea-62a8-3fb1ef1166c7@embarqmail.com> Jim, If I am not mistaken, if the K3 Utility TX Gain calibration fails on any band, no calibration information is stored in the K3. If you do it manually, it will save on a band by band basis. 73, Don W3FPR On 4/2/2020 9:12 AM, Jim Spears wrote: > I am helping a friend upgrade an older K3/100 (s/n 798) after he recently > acquired it from estate of a SK. I have brought firmware forward one or two > versions and installed the KIO3B board set. The radio has main RX only and > the KSYN3A upgrade. It does have the KANT3 antenna tuner. From rmcgraw at blomand.net Sun Apr 5 20:30:43 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 5 Apr 2020 19:30:43 -0500 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> Message-ID: I find it interesting where it is stated? "I have developed a loud hum........" which would imply the hum did not exist prior to this point of observation.?? That being the case, then one must ask "Ok so what has changed, been added or removed?".?? If it wasn't there before and nothing has been changed, then why is it there now???? Something has failed, connections have corroded or broken, PL-259's is not tight, coax jumper has failed due to movement.? Thus I would suggest one find the problem and correct the problem.?? I see no value and no point in adding to or re-designing a system which previously worked correctly. Now, if something was indeed? added, removed or changed, that opens up another area for investigation.?? What was not done correctly to accommodate the new configuration? Jim, K9YC has some good points on bonding, grounding and proper use of chokes. 73 Bob, K4TAX On 4/5/2020 3:50 PM, Carl Yaffey wrote: > I have developed a loud hum with the KPA1500 on 17m and 15m. A slight hum on 20m. All other bands, no hum. > It?s power dependent. Loud at full power, hum reduces as power is lowered. Not too bad at 500w. > Suggestions? > 73. > > Carl, K8NU. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 elanzl at sbcglobal.net Sun Apr 5 21:01:23 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Mon, 6 Apr 2020 01:01:23 +0000 (UTC) Subject: [Elecraft] Elecraft SSB Net for 4-5-2020 References: <1065507056.1017432.1586134883727.ref@mail.yahoo.com> Message-ID: <1065507056.1017432.1586134883727@mail.yahoo.com> Here is the list of stations checking in to the 20m Sunday SSB Net. Thank you to the relay stations N4NRW Roger, NC0JW Jim, and KO5V Jim. We meet on Sundays at 1800Z on a frequency of 14.303.5. We now have a 40 M. net with WM6P Steve who is net control. It meets about 7.280 depending upon availability of the frequency. Today we used 7.282. We hope you will join us. The 40 M net is new and just has met 4 times so far. Best Wishes? Eric WB9JNZ Call???????????? Name????? State?????? Radio???????? Serial #????? QRP????????? Notes WB9JNZ????????? Eric??????????????? IL??????????????????? K3??????????????????? 4017????????????????? ???????????? NetControl K8NU/7?????????? Carl?????????????? OH/WA?????? Yaesu??????????? ?? FT-2000?????????? ????????????????????????????????????????????? ? N6PGQ??????????? Bob?????????????? CA???????????????? K3???????????????????? 5891????????????????? ????????????????????????????????????????????? ? KO5V??????????????? Jim??????????????? NM?????????????? K2/100?????????? ? ? 7225????????????????? ?????????????? RelayStation WM6P???????????? Steve?????????? GA???????????????? K3S????????????????? ? 11453?????????????? ????????????????????????????????????????????? ? NC0JW???????????? Jim??????????????? CO???????????????? KX3?????????????????? 1356????????????????? ????????????? RelayStation N4NRW?????????? Roger?????????? SC????????????????? K3??????????????????? ?? 1318????????????????? ????????????? RelayStation AE1E???????????????? Ken?????????????? NM?????????????? K3S????????????????? 11611?????????????? ????????????????????????????????????????????? ? KS6F???????????????? Guy ????????????? CA???????????????? K3S???????????????? 11672?????????????? ????????????????????????????????????????????? ? K7BRR????????????? Bill???????????????? AZ????????????????? K3/ K3S????????? 5545 / 10939? ????????????????????????????????????????????? ? NK9A??????????????? Stan????????????? IL??????????????????? Yaesu????????????????? 757??????????????????? ????????????????????????????????????????????? ? N7CVZ???????????? Mike???????????? OR???????????????? K3S??????????????????? 10467?????????????? ????????????????????????????????????????????? ? K1NW????????????? Brian???????????? RI?????????????????? K3?????????????????????? 4974????????????????? ????????????????????????????????????????????? ? NS7P??????????????? Phil??????????????? OR???????????????? K3????????????????????? 1826????????????????? ????????????????????????????????????????????? ? WA0BEU???????? Keith??????????? CO???????????????? KX3??????????????????????? 7048????????????????? ????????????????????????????????????????????? ? K6WDE??????????? Dave???????????? CA???????????????? KX3????????????????? ? ?? 4599????????????????? ????????????????????????????????????????????? ? KJ5CI??????????????? Bill???????????????? CO???????????????? KX3????????????????? ?? 3200????????????????? ????????????????????????????????????????????? ? K6SBA????????????? David??????????? CA???????????????? K3?????????????????? ? ? ?? 565??????????????????? ????????????????????????????????????????????? ? W7QHD?????????? Kurt????????????? AZ????????????????? K2/100 / Kx3 1538 / 8697??? ????????????????????????????????????????????? ? N0MPM????????? Mike???????????? IA?????????????????? K3S????????????????????? 10514?????????????? ????????????????????????????????????????????? ? W0OS?????????????? Jim??????????????? MN?????????????? K3?????????????????? ? ?? 5457????????????????? ????????????????????????????????????????????? ? W4DML?????????? Doug??????????? TN???????????????? K3?????????????????? ? ? ?? 6433????????????????? ????????????????????????????????????????????? ? K6VWE??????????? Stan????????????? MI???????????????? K3????????????????????????? 650??????????????????? ????????????????????????????????????????????? ? K2VJK?????????????? Vern???????????? NY???????????????? K3S??????????????????? 10151?????????????? ? ? ? ? ? ? ? ?? 1st time check in KJ9B????????????????? Ken?????????????? IN????????????????? K3S?????????????????? 10270??? QRP ? ? ? ? ? ? ? ? ??1st time check in KA6MOK???????? John???????????? CA???????????????? K2?????????????????????????? 1251????????????????? ????????????????????????????????????????????? ? ZL1PWD????????? Peter??????????? NZ???????????????? K3?????????????????? ? ? ? ??? 139??????????????????? ????????????????????????????????????????????? ? ? From woooe48mmex991 at cox.net Sun Apr 5 22:11:03 2020 From: woooe48mmex991 at cox.net (KE0KAC) Date: Sun, 5 Apr 2020 19:11:03 -0700 (MST) Subject: [Elecraft] No ALC Indication in DATA A mode with fldigi Message-ID: <1586139063312-0.post@n2.nabble.com> I'm stuck trying to understand why I can't get any ALC bars when I'm using fldigi. I can connect headphones to the line that normally goes into the MIC connector and can vary the volume from complete silence to very loud so I know a signal is making it to the MIC jack. If I plug my MH3 microphone into the MIC jack and speak, I see the bars vary depending on how loud I talk. A question - when fldigi puts the KX3 into transmit and send data, should the RF scale disappear and be replaced by the ALC scale? Sometimes (like right now) I don't see the ALC scale BUT I see bars above the RF scale that I can vary using the MIC knob. What causes the ALC scale to show up? By the way, my KX3 is connected to a KXPA100 which the manual indicates has an ALC adjustment screw. Is the KXPA100 controlling some of this? Mike, KE0KAC -- Sent from: http://elecraft.365791.n2.nabble.com/ From w6jhb at me.com Sun Apr 5 22:22:51 2020 From: w6jhb at me.com (James Bennett) Date: Sun, 5 Apr 2020 19:22:51 -0700 Subject: [Elecraft] No ALC Indication in DATA A mode with fldigi In-Reply-To: <1586139063312-0.post@n2.nabble.com> References: <1586139063312-0.post@n2.nabble.com> Message-ID: Mike - are you using Data-A mode? When I put my K3 into Data-A mode, the RF scale becomes the ALC scale. Jim Bennett / W6JHB Folsom, CA > On Apr 5, 2020, at 7:11 PM, KE0KAC wrote: > > I'm stuck trying to understand why I can't get any ALC bars when I'm using > fldigi. I can connect headphones to the line that normally goes into the > MIC connector and can vary the volume from complete silence to very loud so > I know a signal is making it to the MIC jack. If I plug my MH3 microphone > into the MIC jack and speak, I see the bars vary depending on how loud I > talk. > > A question - when fldigi puts the KX3 into transmit and send data, should > the RF scale disappear and be replaced by the ALC scale? Sometimes (like > right now) I don't see the ALC scale BUT I see bars above the RF scale that > I can vary using the MIC knob. What causes the ALC scale to show up? > > By the way, my KX3 is connected to a KXPA100 which the manual indicates has > an ALC adjustment screw. Is the KXPA100 controlling some of this? > > Mike, KE0KAC > > > > -- > 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 w6jhb at me.com From kevinr at coho.net Sun Apr 5 22:44:12 2020 From: kevinr at coho.net (kevinr) Date: Sun, 5 Apr 2020 19:44:12 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: Good Evening, ?? Both bands had less noise than previously.? There was light QSB on 20 meters with more on 40 meters.? Without the noise to contend with it is much easier to copy everyone. ?? More hiking news, yard work, home repair, and a wind damaged antenna.? All are well and planning to stay that way. ? On 14049.5 kHz at 2200z: W0CZ - Ken - ND NO8V - John - MI K6XK - Roy - IA AB9V - Mike - IN K4TO - Dave - KY ? On 7047.5 kHz at 0000z: K4TO - Dave - KY K0DTJ - Brian - CA W6JHB - Jim - CA K6PJV - Dale - CA ?? The sun will be back this week which will hopefully bring more birds and a few flowers.? Once the forest dries out enough I can drive without getting stuck to clear a lot of firewood.? It will take years to complete so it's time to get started. ? Until next week 73, ????? Kevin.? KD5ONS From wunder at wunderwood.org Sun Apr 5 22:47:13 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Sun, 5 Apr 2020 19:47:13 -0700 Subject: [Elecraft] No ALC Indication in DATA A mode with fldigi In-Reply-To: References: <1586139063312-0.post@n2.nabble.com> Message-ID: <01E021FF-3DF4-4815-9740-00B4A97A26FF@wunderwood.org> If the input to the KX3 is too high, it turns off the audio to protect the radio. Try starting at zero and slowly increasing it. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 5, 2020, at 7:22 PM, James Bennett via Elecraft wrote: > > Mike - are you using Data-A mode? When I put my K3 into Data-A mode, the RF scale becomes the ALC scale. > > Jim Bennett / W6JHB > Folsom, CA > >> On Apr 5, 2020, at 7:11 PM, KE0KAC wrote: >> >> I'm stuck trying to understand why I can't get any ALC bars when I'm using >> fldigi. I can connect headphones to the line that normally goes into the >> MIC connector and can vary the volume from complete silence to very loud so >> I know a signal is making it to the MIC jack. If I plug my MH3 microphone >> into the MIC jack and speak, I see the bars vary depending on how loud I >> talk. >> >> A question - when fldigi puts the KX3 into transmit and send data, should >> the RF scale disappear and be replaced by the ALC scale? Sometimes (like >> right now) I don't see the ALC scale BUT I see bars above the RF scale that >> I can vary using the MIC knob. What causes the ALC scale to show up? >> >> By the way, my KX3 is connected to a KXPA100 which the manual indicates has >> an ALC adjustment screw. Is the KXPA100 controlling some of this? >> >> Mike, KE0KAC >> >> >> >> -- >> 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 w6jhb 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 wunder at wunderwood.org From huntinhmb at coastside.net Sun Apr 5 22:48:32 2020 From: huntinhmb at coastside.net (Brian Hunt) Date: Sun, 5 Apr 2020 19:48:32 -0700 Subject: [Elecraft] No ALC Indication in DATA A mode with fldigi In-Reply-To: <1586139063312-0.post@n2.nabble.com> References: <1586139063312-0.post@n2.nabble.com> Message-ID: <650A6503-5934-430E-9BFE-6E0B8D0AEF7A@coastside.net> Both the KX3 and KX2 have over voltage protection on the mic input. If the input is too high mic input will be clamped to zero. When adjusting the audio level, start with the mic/line gain all the way down and increase it slowly. You should see the ALC increase. Stop when it reaches 4 bars with the 5th flickering. Since I don't do much data mode with my KX2 this feature bites me once in a while. :-) HTH & 73, Brian, K0DTJ > On Apr 5, 2020, at 19:11, KE0KAC wrote: > > I'm stuck trying to understand why I can't get any ALC bars when I'm using > fldigi. I can connect headphones to the line that normally goes into the > MIC connector and can vary the volume from complete silence to very loud so > I know a signal is making it to the MIC jack. If I plug my MH3 microphone > into the MIC jack and speak, I see the bars vary depending on how loud I > talk. > > A question - when fldigi puts the KX3 into transmit and send data, should > the RF scale disappear and be replaced by the ALC scale? Sometimes (like > right now) I don't see the ALC scale BUT I see bars above the RF scale that > I can vary using the MIC knob. What causes the ALC scale to show up? > > By the way, my KX3 is connected to a KXPA100 which the manual indicates has > an ALC adjustment screw. Is the KXPA100 controlling some of this? > > Mike, KE0KAC > > > > -- > 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 huntinhmb at coastside.net From jim at audiosystemsgroup.com Sun Apr 5 23:35:26 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 5 Apr 2020 20:35:26 -0700 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <99ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> Message-ID: <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> On 4/5/2020 5:16 PM, Frank O'Donnell wrote: > I'm not the OP, but can you remind us what buzz (multiple harmonics of > 60 Hz) might signify? 60 Hz hum is nearly always magnetic coupling in some form; buzz is generated in the three phase power systems used to distribute power. While few of us have 3-phase power in our homes, the systems out on the street ARE 3-phase. These harmonics are present because a very large fraction of the loads on the power system are some form of rectifier-capacitor-input power supply; most of the AC load current flows at the positive and negative peaks of the 60 Hz sine wave to recharge the filter cap. This causes the current waveform to be a series of positive and negative pulses, and the IR drop causes the top of the voltage waveform to be rounded off. And we know that any distorted signal is composed of harmonics. In an ideally balanced three-phase system with only sine-wave loads, the neutral current goes to zero. But when harmonics are present (the distortion), harmonics whose number is divisible by 3 ADD in the neutral rather than cancel. They also add in the ground! Buzz is generated by leakage current in the power system; it can couple into our equipment by a couple of mechanisms. It can be eliminated by 1) proper bonding within our home and station; and 2) getting power for all station equipment, including computers and other accessories, from the same AC outlet, or from outlets whose green wires are bonded together. All of this is addressed in the slide deck for tutorial talks I've done at Pacificon, Visalia, and to several ham clubs. http://k9yc.com/GroundingAndAudio.pdf 73, Jim K9YC From radioham at mchsi.com Mon Apr 6 00:06:46 2020 From: radioham at mchsi.com (David Christ) Date: Sun, 5 Apr 2020 23:06:46 -0500 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> Message-ID: <043D620F-34AB-4406-8B15-5EB6F846BC1A@mchsi.com> That I understand but if the ground from the entrance breaker panel to a water pipe from the street is 30 feet long, can it radiate interference to AM radios near it (both AC and battery powered)? If so could it cause RFI at even higher frequencies? David K0LUM > On Apr 5, 2020, at 10:35 PM, Jim Brown wrote: > > On 4/5/2020 5:16 PM, Frank O'Donnell wrote: >> I'm not the OP, but can you remind us what buzz (multiple harmonics of 60 Hz) might signify? > > 60 Hz hum is nearly always magnetic coupling in some form; buzz is generated in the three phase power systems used to distribute power. While few of us have 3-phase power in our homes, the systems out on the street ARE 3-phase. These harmonics are present because a very large fraction of the loads on the power system are some form of rectifier-capacitor-input power supply; most of the AC load current flows at the positive and negative peaks of the 60 Hz sine wave to recharge the filter cap. This causes the current waveform to be a series of positive and negative pulses, and the IR drop causes the top of the voltage waveform to be rounded off. And we know that any distorted signal is composed of harmonics. > > In an ideally balanced three-phase system with only sine-wave loads, the neutral current goes to zero. But when harmonics are present (the distortion), harmonics whose number is divisible by 3 ADD in the neutral rather than cancel. They also add in the ground! > > Buzz is generated by leakage current in the power system; it can couple into our equipment by a couple of mechanisms. It can be eliminated by 1) proper bonding within our home and station; and 2) getting power for all station equipment, including computers and other accessories, from the same AC outlet, or from outlets whose green wires are bonded together. All of this is addressed in the slide deck for tutorial talks I've done at Pacificon, Visalia, and to several ham clubs. > > http://k9yc.com/GroundingAndAudio.pdf > > 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 radioham at mchsi.com From donwilh at embarqmail.com Mon Apr 6 00:10:03 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 6 Apr 2020 00:10:03 -0400 Subject: [Elecraft] No ALC Indication in DATA A mode with fldigi In-Reply-To: <1586139063312-0.post@n2.nabble.com> References: <1586139063312-0.post@n2.nabble.com> Message-ID: <31d95336-60eb-17d0-4314-293074fd51f3@embarqmail.com> Mike, Don't go to extremes - set all the audio levels in the system to mid-range and try again. Go to my webpage www.w3fpr.com and scroll the left column to the last article. Click to open the document. While not KX3 specific, it does apply to all Elecraft gear. 73, Don W3FPR On 4/5/2020 10:11 PM, KE0KAC wrote: > I'm stuck trying to understand why I can't get any ALC bars when I'm using > fldigi. I can connect headphones to the line that normally goes into the > MIC connector and can vary the volume from complete silence to very loud so > I know a signal is making it to the MIC jack. If I plug my MH3 microphone > into the MIC jack and speak, I see the bars vary depending on how loud I > talk. > From KY5G at montac.com Mon Apr 6 01:51:56 2020 From: KY5G at montac.com (Clay Autery) Date: Mon, 6 Apr 2020 00:51:56 -0500 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <043D620F-34AB-4406-8B15-5EB6F846BC1A@mchsi.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> <043D620F-34AB-4406-8B15-5EB6F846BC1A@mchsi.com> Message-ID: <4058f441-454c-50d1-f6ee-9250ebc099ff@montac.com> NO "water pipe" should ever be used as a service ground...? I thought the code was changed to actually bar that practice entirely. ______________________ Clay Autery, KY5G (318) 518-1389 On 04/05/20 23:06, David Christ wrote: > That I understand but if the ground from the entrance breaker panel to a water pipe from the street is 30 feet long, can it radiate interference to AM radios near it (both AC and battery powered)? If so could it cause RFI at even higher frequencies? > > David K0LUM > >> On Apr 5, 2020, at 10:35 PM, Jim Brown wrote: >> >> On 4/5/2020 5:16 PM, Frank O'Donnell wrote: >>> I'm not the OP, but can you remind us what buzz (multiple harmonics of 60 Hz) might signify? >> 60 Hz hum is nearly always magnetic coupling in some form; buzz is generated in the three phase power systems used to distribute power. While few of us have 3-phase power in our homes, the systems out on the street ARE 3-phase. These harmonics are present because a very large fraction of the loads on the power system are some form of rectifier-capacitor-input power supply; most of the AC load current flows at the positive and negative peaks of the 60 Hz sine wave to recharge the filter cap. This causes the current waveform to be a series of positive and negative pulses, and the IR drop causes the top of the voltage waveform to be rounded off. And we know that any distorted signal is composed of harmonics. >> >> In an ideally balanced three-phase system with only sine-wave loads, the neutral current goes to zero. But when harmonics are present (the distortion), harmonics whose number is divisible by 3 ADD in the neutral rather than cancel. They also add in the ground! >> >> Buzz is generated by leakage current in the power system; it can couple into our equipment by a couple of mechanisms. It can be eliminated by 1) proper bonding within our home and station; and 2) getting power for all station equipment, including computers and other accessories, from the same AC outlet, or from outlets whose green wires are bonded together. All of this is addressed in the slide deck for tutorial talks I've done at Pacificon, Visalia, and to several ham clubs. >> >> http://k9yc.com/GroundingAndAudio.pdf >> >> 73, Jim K9YC From f8acf56 at gmail.com Mon Apr 6 05:17:29 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Mon, 6 Apr 2020 11:17:29 +0200 Subject: [Elecraft] alignement KPA100 In-Reply-To: <486be450-99cb-59d0-e39b-710845cabdf1@embarqmail.com> References: <486be450-99cb-59d0-e39b-710845cabdf1@embarqmail.com> Message-ID: hello Don, hello everyone, I would like to be sure about 2 measurements on page 44 for my KPA100 Q9 tab: tad; is this the radiator? infinite measure for the central pin of J2, I also find: infinite the question is are the measurements good? the whole thing being to have a good base thank you Don and all of you for your help # K2 7369 + KPA100 in progress Le dim. 5 avr. 2020 ? 22:09, Don Wilhelm a ?crit : > > Your post made it to the reflector OK. > You must use plain text, HTML will be rejected. > Direct email to elecraft at mailman.qth.net. > > What is your problem with the K2 and KPA100? The instructions for > alignment of the KPA100 are in the manual. > > 73, > Don W3FPR > > On 4/5/2020 3:12 PM, Christophe aufacf wrote: > > hello to all , > > > > I am subscribed to the elecraft list, I receive the list well but I am > > unable to send messages > > > > would it be possible for you to see what's going on? > > > > thank you in advance I would like to continue my K2 after 3 years of > > stopping > > > > as i need to ask questions thanks again > > > > -- 73 , F8ACF56 From dave at w8fgu.com Mon Apr 6 08:06:33 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Mon, 06 Apr 2020 12:06:33 +0000 Subject: [Elecraft] alignement KPA100 In-Reply-To: References: <486be450-99cb-59d0-e39b-710845cabdf1@embarqmail.com> Message-ID: F8ACF56, Q9 provides the KEY OUT signal to key an external amplifier (or other circuit) when the KPA100 PTT is actuated. Normally, this signal (tab or drain of Q9) will measure open or infinite. It will then measure close to 0 ohms when the KPA100 is keyed (PTT actuated). Measuring infinite at J2 is also fine. I know the instructions say >10K for both measurements, but infinite is fine (and > 10K). 73, Dave W8FGU ------ Original Message ------ From: "Christophe aufacf" To: donwilh at embarqmail.com Cc: elecraft at mailman.qth.net Sent: 4/6/2020 5:17:29 AM Subject: Re: [Elecraft] alignement KPA100 >hello Don, hello everyone, > >I would like to be sure about 2 measurements on page 44 for my KPA100 >Q9 tab: tad; is this the radiator? infinite measure >for the central pin of J2, I also find: infinite > >the question is are the measurements good? > >the whole thing being to have a good base > >thank you Don and all of you for your help > ># K2 7369 + KPA100 in progress > > >Le dim. 5 avr. 2020 ? 22:09, Don Wilhelm a ?crit : >> >> Your post made it to the reflector OK. >> You must use plain text, HTML will be rejected. >> Direct email to elecraft at mailman.qth.net. >> >> What is your problem with the K2 and KPA100? The instructions for >> alignment of the KPA100 are in the manual. >> >> 73, >> Don W3FPR >> >> On 4/5/2020 3:12 PM, Christophe aufacf wrote: >> > hello to all , >> > >> > I am subscribed to the elecraft list, I receive the list well but I am >> > unable to send messages >> > >> > would it be possible for you to see what's going on? >> > >> > thank you in advance I would like to continue my K2 after 3 years of >> > stopping >> > >> > as i need to ask questions thanks again >> > >> > > > > >-- >73 , F8ACF56 >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.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 radioham at mchsi.com Mon Apr 6 08:47:16 2020 From: radioham at mchsi.com (David Christ) Date: Mon, 6 Apr 2020 07:47:16 -0500 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <4058f441-454c-50d1-f6ee-9250ebc099ff@montac.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> <043D620F-34AB-4406-8B15-5EB6F846BC1A@mchsi.com> <4058f441-454c-50d1-f6ee-9250ebc099ff@montac.com> Message-ID: It is not just to the water pipe (on the street side of the meter). To get to the pipe it appears to run through 25 feet of garage floor. This I assume was done to create a Ufer ground. Whether the connection to the water feed was intended as a service ground is unknown. It may be to ensure that the interior piping (which is copper) is at the same level as the neutral and ground (green) wires in the electrical system. And yes there is a jumper across the meter. To complete the picture the neighborhood electrical distribution system is underground and the step down transformer is 100 feet away or more. I will admit the original post may have been misleading. But we are grasping at straws why the AM radio in the car works fine in the driveway, but as soon as one starts to enter the garage, reception is covered up by a loud growl of static. Radios in a room adjacent to the garage also have a problem while AM radios at the other end of the house are fine. Until I solve this one I will not be able to complete killing all the noise in the house. David K0LUM > On Apr 6, 2020, at 12:51 AM, Clay Autery wrote: > > NO "water pipe" should ever be used as a service ground... I thought the code was changed to actually bar that practice entirely. > > ______________________ > Clay Autery, KY5G > (318) 518-1389 > > On 04/05/20 23:06, David Christ wrote: >> That I understand but if the ground from the entrance breaker panel to a water pipe from the street is 30 feet long, can it radiate interference to AM radios near it (both AC and battery powered)? If so could it cause RFI at even higher frequencies? >> >> David K0LUM >> >>> On Apr 5, 2020, at 10:35 PM, Jim Brown wrote: >>> >>> On 4/5/2020 5:16 PM, Frank O'Donnell wrote: >>>> I'm not the OP, but can you remind us what buzz (multiple harmonics of 60 Hz) might signify? >>> 60 Hz hum is nearly always magnetic coupling in some form; buzz is generated in the three phase power systems used to distribute power. While few of us have 3-phase power in our homes, the systems out on the street ARE 3-phase. These harmonics are present because a very large fraction of the loads on the power system are some form of rectifier-capacitor-input power supply; most of the AC load current flows at the positive and negative peaks of the 60 Hz sine wave to recharge the filter cap. This causes the current waveform to be a series of positive and negative pulses, and the IR drop causes the top of the voltage waveform to be rounded off. And we know that any distorted signal is composed of harmonics. >>> >>> In an ideally balanced three-phase system with only sine-wave loads, the neutral current goes to zero. But when harmonics are present (the distortion), harmonics whose number is divisible by 3 ADD in the neutral rather than cancel. They also add in the ground! >>> >>> Buzz is generated by leakage current in the power system; it can couple into our equipment by a couple of mechanisms. It can be eliminated by 1) proper bonding within our home and station; and 2) getting power for all station equipment, including computers and other accessories, from the same AC outlet, or from outlets whose green wires are bonded together. All of this is addressed in the slide deck for tutorial talks I've done at Pacificon, Visalia, and to several ham clubs. >>> >>> http://k9yc.com/GroundingAndAudio.pdf >>> >>> 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 radioham at mchsi.com From wes_n7ws at triconet.org Mon Apr 6 09:39:15 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 6 Apr 2020 06:39:15 -0700 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <4058f441-454c-50d1-f6ee-9250ebc099ff@montac.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99 ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> <043D620F-34AB-4406-8 B15-5EB6F846BC1A@mchsi.com> <4058f441-454c-50d1-f6ee-9250ebc099ff@montac.com> Message-ID: <9729fa88-51c4-ac7e-5c08-0dc249817648@triconet.org> I believe that is the case.? However, one point on the water piping should be bonded to the service ground for safety reasons.? Using the piping for current-carrying purposes is a really bad idea.? Keywords: Copper pipe, dirt, concrete slab, jackhammer.? Don't ask me how I know. Wes? N7WS On 4/5/2020 10:51 PM, Clay Autery wrote: > NO "water pipe" should ever be used as a service ground...? I thought the code > was changed to actually bar that practice entirely. > > ______________________ > Clay Autery, KY5G > (318) 518-1389 From k2vjk at k2vjk.com Mon Apr 6 10:59:06 2020 From: k2vjk at k2vjk.com (K2VJK) Date: Mon, 6 Apr 2020 10:59:06 -0400 Subject: [Elecraft] 6 meter repeater setup Message-ID: I am having a problem with a 6 meter repeater setup on my K3S. I have the correct offset and direction set. I also have the correct tone set. When I transmit, the repeater can hear me. But I cannot hear it?s reply. What am I doing wrong? Thanks. -- This email has been checked for viruses by AVG. https://www.avg.com From rwnewbould at comcast.net Mon Apr 6 11:36:52 2020 From: rwnewbould at comcast.net (Rich) Date: Mon, 6 Apr 2020 11:36:52 -0400 Subject: [Elecraft] KPA100 and Audio Issue Message-ID: I am having an issue with distorted audio once the KPA100 kicks in at about 10-12v. The KPA100 is putting out 100 watts I have re-calibrated the radio with no change. I am testing with the hand mic and a dummy load.?? Which should eliminate any external devices causing it Any suggestions as to what can be causing this issue? Thanks Rich K3RWN From radioham at mchsi.com Mon Apr 6 12:49:32 2020 From: radioham at mchsi.com (David Christ) Date: Mon, 6 Apr 2020 11:49:32 -0500 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <9729fa88-51c4-ac7e-5c08-0dc249817648@triconet.org> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99 ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> <043D620F-34AB-4406-8 B15-5EB6F846BC1A@mchsi.com> <4058f441-454c-50d1-f6ee-9250ebc099ff@montac.com> <9729fa88-51c4-ac7e-5c08-0dc249817648@triconet.org> Message-ID: That is exactly what appears to be happening. Heavy cable starts at service panel, proceeds into floor slab of garage which I assume is acting as Ufer ground. What appears to be the same cable emerges from the other side of the slab and connects to the water system. I think that it is fair to assume that that the cable emerging from the slab is also connected to the Ufer ground thus bonding the water system to the service system ground. This is one of those things that is difficult to unambiguously describe with words but so easily described with a very simple drawing. I have do doubts that the system was properly designed and safe. But we are getting off the question that I had about RFI. On 3/4/2020 K9YC discussed triplen harmonics in ground systems (I may not be stating it properly). The question is then ?Could triplen currents in the power ground system as described be causing the interference I experience when entering my garage?? or is there another explanation for the RFI? I repeat the description The AM radio in the car works fine in the driveway, but as soon as one starts to enter the garage, reception is covered up by a loud growl of static. Radios in a room adjacent to the garage and over the cable in the basement below also have a problem while AM radios at the other end of the house are fine. David K0LUM > On Apr 6, 2020, at 8:39 AM, Wes wrote: > > I believe that is the case. However, one point on the water piping should be bonded to the service ground for safety reasons. Using the piping for current-carrying purposes is a really bad idea. Keywords: Copper pipe, dirt, concrete slab, jackhammer. Don't ask me how I know. > > Wes N7WS > > > On 4/5/2020 10:51 PM, Clay Autery wrote: >> NO "water pipe" should ever be used as a service ground... I thought the code was changed to actually bar that practice entirely. >> >> ______________________ >> Clay Autery, KY5G >> (318) 518-1389 From c-hawley at illinois.edu Mon Apr 6 12:56:48 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Mon, 6 Apr 2020 16:56:48 +0000 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only In-Reply-To: <57775b7c-dbb9-23ea-62a8-3fb1ef1166c7@embarqmail.com> References: <021201d608f0$660b2cf0$322186d0$@cox.net>, <57775b7c-dbb9-23ea-62a8-3fb1ef1166c7@embarqmail.com> Message-ID: Other than using a computer, is there a menu item where the tx calibration values can be seen? Tha manuals are pretty much assuming that you have a computer and still have the one that you did the calibration on. Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Apr 5, 2020, at 7:24 PM, Don Wilhelm wrote: > > ?Jim, > > If I am not mistaken, if the K3 Utility TX Gain calibration fails on any band, no calibration information is stored in the K3. If you do it manually, it will save on a band by band basis. > > 73, > Don W3FPR > >> On 4/2/2020 9:12 AM, Jim Spears wrote: >> I am helping a friend upgrade an older K3/100 (s/n 798) after he recently >> acquired it from estate of a SK. I have brought firmware forward one or two >> versions and installed the KIO3B board set. The radio has main RX only and >> the KSYN3A upgrade. It does have the KANT3 antenna tuner. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rmcgraw at blomand.net Mon Apr 6 13:00:45 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 6 Apr 2020 12:00:45 -0500 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99 ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> <043D620F-34AB-4406-8 B15-5EB6F846BC1A@mchsi.com> <4058f441-454c-50d1-f6ee-9250ebc099ff@montac.com> <9729fa88-51c4-ac7e-5c08-0dc249817648@triconet.org> Message-ID: <98cf0616-ac79-23fb-923f-9a107dee15f0@blomand.net> Electric garage door opener??? Most have internal SMPS units. Drop the main breaker for the house and see if the noise goes away or decreases on your car radio.? If so, it is something in your house.??? Now the hunt begins.?? One step at a time, being one breaker at a time.? That will allow one to determine what circuit/room the issue is originating. Depending on the age of the house, the ground system may have deteriorated and needs updating or replacement.?? A qualified knowledgeable electrician can assist in this regard. Our house is 50 years old and I found the AC mains ground just below the meter base had been eaten away by electrolysis.? I had a new ground rod installed and new cable ran to the meter base and then into the breaker panel.? Several issues were resolved with regard to lights getting bright and dim for no obvious reasons. 73 Bob, K4TAX On 4/6/2020 11:49 AM, David Christ wrote: > That is exactly what appears to be happening. Heavy cable starts at service panel, proceeds into floor slab of garage which I assume is acting as Ufer ground. What appears to be the same cable emerges from the other side of the slab and connects to the water system. I think that it is fair to assume that that the cable emerging from the slab is also connected to the Ufer ground thus bonding the water system to the service system ground. This is one of those things that is difficult to unambiguously describe with words but so easily described with a very simple drawing. > > I have do doubts that the system was properly designed and safe. But we are getting off the question that I had about RFI. On 3/4/2020 K9YC discussed triplen harmonics in ground systems (I may not be stating it properly). The question is then ?Could triplen currents in the power ground system as described be causing the interference I experience when entering my garage?? or is there another explanation for the RFI? > > I repeat the description > > The AM radio in the car works fine in the driveway, but as soon as one starts to enter the garage, reception is covered up by a loud growl of static. Radios in a room adjacent to the garage and over the cable in the basement below also have a problem while AM radios at the other end of the house are fine. > > > David K0LUM > >> On Apr 6, 2020, at 8:39 AM, Wes wrote: >> >> I believe that is the case. However, one point on the water piping should be bonded to the service ground for safety reasons. Using the piping for current-carrying purposes is a really bad idea. Keywords: Copper pipe, dirt, concrete slab, jackhammer. Don't ask me how I know. >> >> Wes N7WS >> >> >> On 4/5/2020 10:51 PM, Clay Autery wrote: >>> NO "water pipe" should ever be used as a service ground... I thought the code was changed to actually bar that practice entirely. >>> >>> ______________________ >>> Clay Autery, KY5G >>> (318) 518-1389 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donwilh at embarqmail.com Mon Apr 6 13:01:26 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 6 Apr 2020 13:01:26 -0400 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: References: Message-ID: <36e56d0e-12d4-af9b-9804-864eec2a13e5@embarqmail.com> Rich, Connect an external wattmeter and a dummy load. Then set the K2 power to 50 watts and do a TUNE. What is the actual power output? If it is much greater than 100 watts (as I suspect), then you do not have power control and that says that the wattmeter in the KPA100 has been damaged - likely from static coming in on the feedline. Replace D16 and D17 in the KPA100 and the problem should go away. 73, Don W3FPR On 4/6/2020 11:36 AM, Rich wrote: > I am having an issue with distorted audio once the KPA100 kicks in at > about 10-12v. > > The KPA100 is putting out 100 watts > > I have re-calibrated the radio with no change. > > I am testing with the hand mic and a dummy load.?? Which should > eliminate any external devices causing it > > Any suggestions as to what can be causing this issue? > From rwnewbould at comcast.net Mon Apr 6 13:43:27 2020 From: rwnewbould at comcast.net (Rich) Date: Mon, 6 Apr 2020 13:43:27 -0400 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: <36e56d0e-12d4-af9b-9804-864eec2a13e5@embarqmail.com> References: <36e56d0e-12d4-af9b-9804-864eec2a13e5@embarqmail.com> Message-ID: Just to make sure that was a typo you said K2?? I did your test on my K3S and I am getting about 55 watts on the meter Any other ideas? Thank you so much Rich On 4/6/2020 13:01 PM, Don Wilhelm wrote: > Rich, > > Connect an external wattmeter and a dummy load. > Then set the K2 power to 50 watts and do a TUNE. > What is the actual power output?? If it is much greater than 100 watts > (as I suspect), then you do not have power control and that says that > the wattmeter in the KPA100 has been damaged - likely from static > coming in on the feedline. > Replace D16 and D17 in the KPA100 and the problem should go away. > > 73, > Don W3FPR > > On 4/6/2020 11:36 AM, Rich wrote: >> I am having an issue with distorted audio once the KPA100 kicks in at >> about 10-12v. >> >> The KPA100 is putting out 100 watts >> >> I have re-calibrated the radio with no change. >> >> I am testing with the hand mic and a dummy load.?? Which should >> eliminate any external devices causing it >> >> Any suggestions as to what can be causing this issue? >> From rmcgraw at blomand.net Mon Apr 6 14:08:28 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 6 Apr 2020 13:08:28 -0500 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: References: Message-ID: I?d say that 10 - 12 volts is too low. The supply should be 13.8 to 14.8. Bob, K4TAX Sent from my iPhone > On Apr 6, 2020, at 10:52 AM, Rich wrote: > > ?I am having an issue with distorted audio once the KPA100 kicks in at about 10-12v. > > The KPA100 is putting out 100 watts > > I have re-calibrated the radio with no change. > > I am testing with the hand mic and a dummy load. Which should eliminate any external devices causing it > > Any suggestions as to what can be causing this issue? > > Thanks > > Rich > > K3RWN > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donwilh at embarqmail.com Mon Apr 6 14:09:16 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 6 Apr 2020 14:09:16 -0400 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: References: <36e56d0e-12d4-af9b-9804-864eec2a13e5@embarqmail.com> Message-ID: <59f3e8e9-7449-3b2d-906f-3ded82c803eb@embarqmail.com> Rich, Well, since the KPA100 is an option for the K2 (and not for any other transceiver), I did not make a typo. Since you have the K3S, the 100 watt amplifier is the KPA3. That is why one has to be careful when specifying designations of options. As I recall, that distorted audio on the K3S is a symptom of a failure in the LPA on the RF Board.? Contact support at elecraft.com to get some points to check. 73, Don W3FPR On 4/6/2020 1:43 PM, Rich wrote: > Just to make sure that was a typo you said K2?? > > I did your test on my K3S and I am getting about 55 watts on the meter > > Any other ideas? > > Thank you so much > From jim at audiosystemsgroup.com Mon Apr 6 14:14:05 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 6 Apr 2020 11:14:05 -0700 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> <043D620F-34AB-4406-8B15-5EB6F846BC1A@mchsi.com> <4058f441-454c-50d1-f6ee-9250ebc099ff@montac.com> Message-ID: <6c766800-2d83-0d59-01a7-f29697984bd9@audiosystemsgroup.com> On 4/6/2020 5:47 AM, David Christ wrote: > Until I solve this one I will not be able to complete killing all the noise in the house. This sentence suggests that you didn't study the link I posted. 73, Jim K9YC From rwnewbould at comcast.net Mon Apr 6 14:23:47 2020 From: rwnewbould at comcast.net (Rich) Date: Mon, 6 Apr 2020 14:23:47 -0400 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: <59f3e8e9-7449-3b2d-906f-3ded82c803eb@embarqmail.com> References: <36e56d0e-12d4-af9b-9804-864eec2a13e5@embarqmail.com> <59f3e8e9-7449-3b2d-906f-3ded82c803eb@embarqmail.com> Message-ID: <810b6d60-fe78-22fd-a361-d4898f6cae9f@comcast.net> Thanks for your help as always.?? Well frankly I have been calling it the wrong thing forever. Rich On 4/6/2020 14:09 PM, Don Wilhelm wrote: > Rich, > > Well, since the KPA100 is an option for the K2 (and not for any other > transceiver), I did not make a typo. > Since you have the K3S, the 100 watt amplifier is the KPA3. > That is why one has to be careful when specifying designations of > options. > > As I recall, that distorted audio on the K3S is a symptom of a failure > in the LPA on the RF Board.? Contact support at elecraft.com to get some > points to check. > > 73, > Don W3FPR > > On 4/6/2020 1:43 PM, Rich wrote: >> Just to make sure that was a typo you said K2?? >> >> I did your test on my K3S and I am getting about 55 watts on the meter >> >> Any other ideas? >> >> Thank you so much >> > > From a.durbin at msn.com Mon Apr 6 14:24:20 2020 From: a.durbin at msn.com (Andy Durbin) Date: Mon, 6 Apr 2020 18:24:20 +0000 Subject: [Elecraft] Hum on KPA1500 Message-ID: "The AM radio in the car works fine in the driveway, but as soon as one starts to enter the garage, reception is covered up by a loud growl of static. Radios in a room adjacent to the garage and over the cable in the basement below also have a problem while AM radios at the other end of the house are fine." In what way, if at all, is this observation/question related to the report of KPA1500 hum? With reference to the original report - what is origin of the hum? That is - what physical object is originating the sound waves that are characterized as hum. There was no mention of an AM radio in that original post. Andy, k3wyc From rmcgraw at blomand.net Mon Apr 6 14:25:36 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 6 Apr 2020 13:25:36 -0500 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: <59f3e8e9-7449-3b2d-906f-3ded82c803eb@embarqmail.com> References: <59f3e8e9-7449-3b2d-906f-3ded82c803eb@embarqmail.com> Message-ID: <589E29D5-EE12-47B6-95E4-4392FC34D761@blomand.net> From my experience Don is correct that a failure of the KPA3A will cause distortion. Mine failed twice and was replaced by Elecraft. The best description of the failure is ?fuzzy audio?. I don?t recall the output was showing less than 100 watts. Bob, K4TAX Sent from my iPhone > On Apr 6, 2020, at 1:25 PM, Don Wilhelm wrote: > > ?Rich, > > Well, since the KPA100 is an option for the K2 (and not for any other transceiver), I did not make a typo. > Since you have the K3S, the 100 watt amplifier is the KPA3. > That is why one has to be careful when specifying designations of options. > > As I recall, that distorted audio on the K3S is a symptom of a failure in the LPA on the RF Board. Contact support at elecraft.com to get some points to check. > > 73, > Don W3FPR > >> On 4/6/2020 1:43 PM, Rich wrote: >> Just to make sure that was a typo you said K2?? >> >> I did your test on my K3S and I am getting about 55 watts on the meter >> >> Any other ideas? >> >> Thank you so much >> > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Apr 6 14:32:28 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 6 Apr 2020 11:32:28 -0700 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: <043D620F-34AB-4406-8B15-5EB6F846BC1A@mchsi.com> References: <8F3F6E6F-51F8-4E68-8991-3C6516093F23@columbus.rr.com> <99ca8cc6-d558-e3ce-6d03-1385f87cd586@inkbox.net> <6adf579d-76fd-ef86-e697-2627011e2cf4@audiosystemsgroup.com> <043D620F-34AB-4406-8B15-5EB6F846BC1A@mchsi.com> Message-ID: <1492b806-9a40-667f-f423-a217447a7245@audiosystemsgroup.com> On 4/5/2020 9:06 PM, David Christ wrote: > That I understand but if the ground from the entrance breaker panel to a water pipe from the street is 30 feet long, can it radiate interference to AM radios near it (both AC and bat Any conductor carrying RF current WILL radiate it. That's antenna action. The "hum" and "buzz" described in my earlier post are NOT RF, they are baseband (60 Hz and harmonics). The mechanism whereby a coax feedline is carrying RF current into our shack producing hum is that the current couples into electronics (usually by a Pin One Problem) and changes the bias state of some gain stage. 73, Jim K9YC From ab4iq at comcast.net Mon Apr 6 14:38:21 2020 From: ab4iq at comcast.net (Ed Pflueger) Date: Mon, 6 Apr 2020 13:38:21 -0500 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: <59f3e8e9-7449-3b2d-906f-3ded82c803eb@embarqmail.com> References: <36e56d0e-12d4-af9b-9804-864eec2a13e5@embarqmail.com> <59f3e8e9-7449-3b2d-906f-3ded82c803eb@embarqmail.com> Message-ID: <00be01d60c42$8cfeec20$a6fcc460$@comcast.net> That's where the problem was in my 2 K3S's. Ed.. AB4IQ -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Don Wilhelm Sent: Monday, April 6, 2020 1:09 PM To: Rich ; Elecraft Subject: Re: [Elecraft] KPA100 and Audio Issue Rich, Well, since the KPA100 is an option for the K2 (and not for any other transceiver), I did not make a typo. Since you have the K3S, the 100 watt amplifier is the KPA3. That is why one has to be careful when specifying designations of options. As I recall, that distorted audio on the K3S is a symptom of a failure in the LPA on the RF Board. Contact support at elecraft.com to get some points to check. 73, Don W3FPR On 4/6/2020 1:43 PM, Rich wrote: > Just to make sure that was a typo you said K2?? > > I did your test on my K3S and I am getting about 55 watts on the meter > > Any other ideas? > > Thank you so much > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 david at g4nrt.com Mon Apr 6 14:58:39 2020 From: david at g4nrt.com (David Bondy) Date: Mon, 6 Apr 2020 18:58:39 +0000 Subject: [Elecraft] K3 Settings for SignaLink USB In-Reply-To: <4265940b-d29f-1d11-3e41-b9cb9770d3ad@embarqmail.com> References: <7BCAE0CE-36DD-478F-874C-915CBB5A3768@g4nrt.com> <4265940b-d29f-1d11-3e41-b9cb9770d3ad@embarqmail.com> Message-ID: Many thanks to all of those who took the time and trouble to answer. I took the SignaLink apart and re-seated the module. I also re-checked my ALC setting and all the others on the rig. I had come across a very useful document by Jason K8ZT and followed his instructions to the letter. I also found the information by Don W3FPR immensely useful in setting up my ALC etc. All-in-all very helpful and I am now up and running on WSJT-X with no problems. I shall setup my FLDIGI next ? Thanks again everyone and very 73, David G4NRT From a.durbin at msn.com Mon Apr 6 15:35:36 2020 From: a.durbin at msn.com (Andy Durbin) Date: Mon, 6 Apr 2020 19:35:36 +0000 Subject: [Elecraft] Hum on KPA1500 In-Reply-To: References: Message-ID: "The mechanism whereby a coax feedline is carrying RF current into our shack producing hum is that the current couples into electronics (usually by a Pin One Problem) and changes the bias state of some gain stage." My understanding of the original post is that hum was heard in the shack and that the origin of that hum was believed to be the KPA1500. We still have not been told if the hum came from the PSU or the RF deck. I can understand that RF current coupling could possibly influence the quality of the KPA1500 transmitted signal but how would that result in "hum" heard in the shack? 73, Andy, k3wyc From hlstephenson at gmail.com Mon Apr 6 15:42:44 2020 From: hlstephenson at gmail.com (Howard Stephenson) Date: Mon, 6 Apr 2020 12:42:44 -0700 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only Message-ID: Try CONFIG TXGN It's listed in the manual under the CONFIG Menu Good afternoon all for the modifications of the K2 to put a KPA100 must be done before putting the KPA100 so measurement and adjustments or can this be done once KP100 is set and installed? could give me the page in the manual of K2 or aligns 12 / 10M ? thank you in advance, I'm happy to get back on my K2 after more than 3 years off, so I have to get back in the bath # K2 7369 + KPA100 in progress -- 73 , F8ACF56 From Steeeele at gmail.com Mon Apr 6 16:50:40 2020 From: Steeeele at gmail.com (STEEEELE) Date: Mon, 6 Apr 2020 13:50:40 -0700 (MST) Subject: [Elecraft] K1 Full (Unbuilt) Kit For Sale Message-ID: <1586206240797-0.post@n2.nabble.com> Probably a long shot but does anyone have an unbuilt Elecraft K1 Kit squirreled away that they are willing to sell? Thanks for your time Josh -- Sent from: http://elecraft.365791.n2.nabble.com/ From c-hawley at illinois.edu Mon Apr 6 17:00:09 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Mon, 6 Apr 2020 21:00:09 +0000 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only In-Reply-To: References: Message-ID: Thankyou. I'll check those. Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Apr 6, 2020, at 2:43 PM, Howard Stephenson wrote: > > ?Try CONFIG TXGN > It's listed in the manual under the CONFIG Menu > > values can be > If you are having issues with TX Gain on 6M only check the IF trap in the > ATU (L10 C10) > you can remove them and replace with a jumper. > > 73 > Howard K6IA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 keith at elecraft.com Mon Apr 6 17:32:37 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Mon, 6 Apr 2020 14:32:37 -0700 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only In-Reply-To: <021201d608f0$660b2cf0$322186d0$@cox.net> References: <021201d608f0$660b2cf0$322186d0$@cox.net> Message-ID: <398ce3b5-b9d8-8129-e56c-5fa91116c443@elecraft.com> Could be a burned trap on the KAT3 (most likely). Just jumper the coil, L10 and it will bypass a burned capacitor. The trap was found to be redundant. Make sure 6m is on the correct antenna not 2. In TUNE, does it really have High SWR? Set ATU to BYP for any tests using dummy load. Make sure TECH MD is on, then look at config menu TXGN HP (or LP below 12w [8w 6m]) for the gain number. Try a manual TX gain cal on different parts of the band, every half a meg or so and see if it will pass. (set TUN PWR to nor, set power for 50w EXACTLY, then long press XMIT to send a carrier at 50 w for several seconds) Then check the TXGN number. You can do it at 5.0 watts exactly for the LP gain cal. Keith WE6R Elecraft K3 Tech From donwilh at embarqmail.com Mon Apr 6 17:33:13 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 6 Apr 2020 17:33:13 -0400 Subject: [Elecraft] modification K2 use for KPA100 In-Reply-To: References: Message-ID: Christophe, Since your K2 is SN 7369, it does not need any modifications or alignment to add the KPA100 - that 10/12m VFO/ALC Mod kit is only for older K2s, those component changes are already present in your K2. You will have to add the headers on the RF Board if they are not already present. The KPA100 manual will tell you when to install them. 73, Don W3FPR On 4/6/2020 4:03 PM, Christophe aufacf wrote: > Good afternoon all > > for the modifications of the K2 to put a KPA100 > > must be done before putting the KPA100 so measurement and adjustments > > or can this be done once KP100 is set and installed? > > could give me the page in the manual of K2 or aligns 12 / 10M ? > > thank you in advance, I'm happy to get back on my K2 after more than 3 > years off, so I have to get back in the bath > > # K2 7369 + KPA100 in progress > > From vk4tux at gmail.com Mon Apr 6 17:54:11 2020 From: vk4tux at gmail.com (Adrian) Date: Tue, 7 Apr 2020 07:54:11 +1000 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: References: Message-ID: <67274c82-e9ae-032a-88bf-7978dfcb1d92@gmail.com> I always use 15.6v and with double heavy cable to minimise VD, On 7/4/20 4:08 am, Bob McGraw K4TAX wrote: > I?d say that 10 - 12 volts is too low. The supply should be 13.8 to 14.8. > > Bob, K4TAX > > > Sent from my iPhone > >> On Apr 6, 2020, at 10:52 AM, Rich wrote: >> >> ?I am having an issue with distorted audio once the KPA100 kicks in at about 10-12v. >> >> The KPA100 is putting out 100 watts >> >> I have re-calibrated the radio with no change. >> >> I am testing with the hand mic and a dummy load. Which should eliminate any external devices causing it >> >> Any suggestions as to what can be causing this issue? >> >> Thanks >> >> Rich >> >> K3RWN >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 w1sfr.qrp at gmail.com Mon Apr 6 19:10:03 2020 From: w1sfr.qrp at gmail.com (Stephen Roberts) Date: Mon, 6 Apr 2020 19:10:03 -0400 Subject: [Elecraft] K1 Issues with RIT and ATTN LED's not functioning Message-ID: <3805368D-9243-4411-B509-24E61F25A367@gmail.com> I recently purchased a K1 and found that the LED's for the RIT and ATTN don't function correctly. When I turn on the rig the LED's cycle correctly then go out. When I push either of the buttons and turn the RIT or ATTN on, neither of the lights come on. 73, Steve, W1SFR w1sfr.com From w1sfr.qrp at gmail.com Mon Apr 6 20:05:07 2020 From: w1sfr.qrp at gmail.com (Stephen Roberts) Date: Mon, 6 Apr 2020 20:05:07 -0400 Subject: [Elecraft] WTB Tuner and Noise Blanker for the K1 Message-ID: <2F700F77-3115-4D0C-95B2-3E970F046FAF@gmail.com> Can you tell I just got a "new" K1? I've had more than a few over the years. My most recent one needs some upgrades. I have a T1 tuner but would like to find the KAT1 tuner and the noise blanker. I know....good luck eh? Let me know... 73, Steve, W1SFR w1sfr.com From donwilh at embarqmail.com Mon Apr 6 20:15:43 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 6 Apr 2020 20:15:43 -0400 Subject: [Elecraft] K1 Issues with RIT and ATTN LED's not functioning In-Reply-To: <3805368D-9243-4411-B509-24E61F25A367@gmail.com> References: <3805368D-9243-4411-B509-24E61F25A367@gmail.com> Message-ID: Steve, Those LEDs are activated by 2 pins on the MCU, but the actual activation of ATTN and RIT/XIT is done via the AUXBUS signalling. Unless you know that they worked shortly before you bought it, I would suggest that it may have been unused for some time. On the chance that the problem is caused by oxidation on the pins of the MCU/socket, I suggest that you remove and reseat the MCU IC. It is on the Front Panel board, and is the only socketed IC in the K1. 73, Don W3FPR On 4/6/2020 7:10 PM, Stephen Roberts wrote: > I recently purchased a K1 and found that the LED's for the RIT and ATTN don't function correctly. When I turn on the rig the LED's cycle correctly then go out. When I push either of the buttons and turn the RIT or ATTN on, neither of the lights come on. > From ny9h at arrl.net Mon Apr 6 21:07:21 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Mon, 6 Apr 2020 21:07:21 -0400 Subject: [Elecraft] KPA100 and Audio Issue In-Reply-To: <67274c82-e9ae-032a-88bf-7978dfcb1d92@gmail.com> References: <67274c82-e9ae-032a-88bf-7978dfcb1d92@gmail.com> Message-ID: Rich really meant WATTs..... On 4/6/2020 5:54 PM, Adrian wrote: > I always use 15.6v and with double heavy cable to minimise VD, > > > On 7/4/20 4:08 am, Bob McGraw K4TAX wrote: >> I?d say that 10 - 12 volts is too low. The supply should be 13.8 to >> 14.8. >> >> Bob, K4TAX >> >> >> Sent from my iPhone >> >>> On Apr 6, 2020, at 10:52 AM, Rich wrote: >>> >>> ?I am having an issue with distorted audio once the KPA100 kicks in >>> at about 10-12v. >>> >>> The KPA100 is putting out 100 watts >>> >>> I have re-calibrated the radio with no change. >>> >>> I am testing with the hand mic and a dummy load.?? Which should >>> eliminate any external devices causing it >>> >>> Any suggestions as to what can be causing this issue? >>> >>> Thanks >>> >>> Rich >>> >>> K3RWN >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 f8acf56 at gmail.com Tue Apr 7 05:45:55 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Tue, 7 Apr 2020 11:45:55 +0200 Subject: [Elecraft] modification K2 use for KPA100 In-Reply-To: References: Message-ID: hello don and All , Thank you for the info I'm going back to my K2 73 , F8ACF #K2 7369 + KP100 in progress Le lun. 6 avr. 2020 ? 23:33, Don Wilhelm a ?crit : > > Christophe, > > Since your K2 is SN 7369, it does not need any modifications or > alignment to add the KPA100 - that 10/12m VFO/ALC Mod kit is only for > older K2s, those component changes are already present in your K2. > > You will have to add the headers on the RF Board if they are not already > present. The KPA100 manual will tell you when to install them. > > 73, > Don W3FPR > > On 4/6/2020 4:03 PM, Christophe aufacf wrote: > > Good afternoon all > > > > for the modifications of the K2 to put a KPA100 > > > > must be done before putting the KPA100 so measurement and adjustments > > > > or can this be done once KP100 is set and installed? > > > > could give me the page in the manual of K2 or aligns 12 / 10M ? > > > > thank you in advance, I'm happy to get back on my K2 after more than 3 > > years off, so I have to get back in the bath > > > > # K2 7369 + KPA100 in progress > > > > -- 73 , F8ACF56 From pokirley at gmail.com Tue Apr 7 09:33:00 2020 From: pokirley at gmail.com (Paul Kirley) Date: Tue, 07 Apr 2020 13:33:00 +0000 Subject: [Elecraft] K1 Issues with RIT and ATTN LED's not functioning Message-ID: W1SFR sed: I recently purchased a K1 and found that the LED's for the RIT and ATTN don't function correctly. When I turn on the rig the LED's cycle correctly then go out. When I push either of the buttons and turn the RIT or ATTN on, neither of the lights come on. Since you recently bought the K1, you may not be aware that there is a menu setting for this. Check the LED setting and verify that it is ON. It's on page 52 of my 2001 owner's manual. 73, Paul W8TM From w1sfr.qrp at gmail.com Tue Apr 7 09:52:35 2020 From: w1sfr.qrp at gmail.com (Stephen Roberts) Date: Tue, 7 Apr 2020 09:52:35 -0400 Subject: [Elecraft] K1 issues with RIT and ATT Led's Message-ID: <07EEF7D9-7CA1-4ADB-AFFD-E0866ECA3D16@gmail.com> Several responded and it was a couple of things. First was that the main IC wasn't seated completely. I removed it, checked the pins and straightened them a bit. That apparently brought the LED's back to life so when I powered up I could see them initialize. Then I went to the menu and turned them on. Didn't even know there was a menu choice that controlled the LED's. Felt kinda dumb when I was told about that. Oh well, I'll take an easy fix any day... Steve W1SFR w1sfr.com From c-hawley at illinois.edu Tue Apr 7 09:53:32 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Tue, 7 Apr 2020 13:53:32 +0000 Subject: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only In-Reply-To: <398ce3b5-b9d8-8129-e56c-5fa91116c443@elecraft.com> References: <021201d608f0$660b2cf0$322186d0$@cox.net>, <398ce3b5-b9d8-8129-e56c-5fa91116c443@elecraft.com> Message-ID: Thanks for the information. I did not have a tuner in this K3S when it failed the 6M cal so I figured it was just marginal for some reason since it DID pass on the third try. I have read the Config menu now and see how to check the gain and do a manual cal if necessary. I was just afraid to do the Cal again with the utility since it did eventually pass. I thought...leave it alone. But I did want to investigate the 6M gain etc. and understand what it was all about. I see now that I can do a manual Cal on 6M only if it becomes necessary. I need to learn to read the pages on menus in the manual as well as the index. I checked as you suggested and my gains are LP 10 watts and HP 34 at 50.135 MHz. Also I did as you suggested and the dummy load tune SWR is 1/1.1 So all good I guess. Thank you again, Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Keith Trinity WE6R Sent: Monday, April 6, 2020 4:32 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] K3 - NOT K3S - issue: TX Calibration fails on 6m only Could be a burned trap on the KAT3 (most likely). Just jumper the coil, L10 and it will bypass a burned capacitor. The trap was found to be redundant. Make sure 6m is on the correct antenna not 2. In TUNE, does it really have High SWR? Set ATU to BYP for any tests using dummy load. Make sure TECH MD is on, then look at config menu TXGN HP (or LP below 12w [8w 6m]) for the gain number. Try a manual TX gain cal on different parts of the band, every half a meg or so and see if it will pass. (set TUN PWR to nor, set power for 50w EXACTLY, then long press XMIT to send a carrier at 50 w for several seconds) Then check the TXGN number. You can do it at 5.0 watts exactly for the LP gain cal. Keith WE6R Elecraft K3 Tech ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 ny9h at arrl.net Tue Apr 7 11:45:00 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Tue, 7 Apr 2020 11:45:00 -0400 Subject: [Elecraft] TX Calibration fails on 30m only In-Reply-To: References: <021201d608f0$660b2cf0$322186d0$@cox.net> <398ce3b5-b9d8-8129-e56c-5fa91116c443@elecraft.com> Message-ID: <9d8b3faf-8afc-2028-2b56-64bf4f8c99a8@arrl.net> thought it good day to do a tx calibration. I don't very often use 30 meters..??? and today the calib quits at 30 meters saying? too high for calibration?? 4.1 swr... All other bands indicate swr of 1.1 //? except 10mHz... I looked and the 10mHz low pass filter is shared with 14mHZ... and 20 looks ok. Don't know if the problem is in the tuner while in "BYPASS " for the test, or elsewhere. ? Any help ???? searching found nothing for me. bill -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From rmcgraw at blomand.net Tue Apr 7 14:01:48 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Tue, 7 Apr 2020 13:01:48 -0500 Subject: [Elecraft] TX Calibration fails on 30m only In-Reply-To: <9d8b3faf-8afc-2028-2b56-64bf4f8c99a8@arrl.net> References: <9d8b3faf-8afc-2028-2b56-64bf4f8c99a8@arrl.net> Message-ID: <87F59137-9C6E-4B52-929B-E4B3B78DE64D@blomand.net> I?ve found that one should use a 12? to 18? jumper of known good condition and quality. Use this jumper to connect the dummy load direct to the radio. No switches, and no tuners in bypass mode. The dummy load should be 50 ohms +/- 5 (thats 10%) ohms and be resistive. Light bulbs and soldered up resistors and the like, aren?t resistive, meaning no reactance. Don?t take what?s written on the label as fact! They change! Measure them with an ohm meter and antenna bridge at several points from 1.8 MHz to 54 MHz. Anything greater than 1.1 to 1 is out of tolerance. Run TX Gain cal on all bands. Your results are only as accurate as your procedure and test equipment. Bob, K4TAX Sent from my iPhone > On Apr 7, 2020, at 10:59 AM, Bill Steffey NY9H wrote: > > ?thought it good day to do a tx calibration. > > I don't very often use 30 meters.. and today the calib quits at 30 meters saying too high for calibration 4.1 swr... > > All other bands indicate swr of 1.1 // except 10mHz... > > > I looked and the 10mHz low pass filter is shared with 14mHZ... and 20 looks ok. Don't know if the problem is in the tuner while in "BYPASS " for the test, or elsewhere. Any help ??? searching found nothing for me. > > > bill > > > > -- > 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 rmcgraw at blomand.net From ny9h at arrl.net Tue Apr 7 15:43:02 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Tue, 7 Apr 2020 15:43:02 -0400 Subject: [Elecraft] TX Calibration fails on 30m only THANKS TO TAX !!! In-Reply-To: <87F59137-9C6E-4B52-929B-E4B3B78DE64D@blomand.net> References: <9d8b3faf-8afc-2028-2b56-64bf4f8c99a8@arrl.net> <87F59137-9C6E-4B52-929B-E4B3B78DE64D@blomand.net> Message-ID: <335212ff-f0ff-f81f-f737-65552414a555@arrl.net> yepper the radio is fine...? something between the k3? and the waters dummyload/wattmeter? did NOT like 10 mHz. Bob prompted what was my next step ..one short jumper to the load...BINGO Now I need to find just where that lump of something is hiding . I was fooled in that it calibrated up to 10mHz and manually looked good on all the other bands...!!!! thanks Bob for precipitating me to do the right thing. bill ny9h On 4/7/2020 2:01 PM, Bob McGraw K4TAX wrote: > I?ve found that one should use a 12? to 18? jumper of known good condition and quality. Use this jumper to connect the dummy load direct to the radio. No switches, and no tuners in bypass mode. > > The dummy load should be 50 ohms +/- 5 (thats 10%) ohms and be resistive. Light bulbs and soldered up resistors and the like, aren?t resistive, meaning no reactance. Don?t take what?s written on the label as fact! They change! Measure them with an ohm meter and antenna bridge at several points from 1.8 MHz to 54 MHz. Anything greater than 1.1 to 1 is out of tolerance. > > Run TX Gain cal on all bands. Your results are only as accurate as your procedure and test equipment. > > Bob, K4TAX > > > Sent from my iPhone > >> On Apr 7, 2020, at 10:59 AM, Bill Steffey NY9H wrote: >> >> ?thought it good day to do a tx calibration. >> >> I don't very often use 30 meters.. and today the calib quits at 30 meters saying too high for calibration 4.1 swr... >> >> All other bands indicate swr of 1.1 // except 10mHz... >> >> >> I looked and the 10mHz low pass filter is shared with 14mHZ... and 20 looks ok. Don't know if the problem is in the tuner while in "BYPASS " for the test, or elsewhere. Any help ??? searching found nothing for me. >> >> >> bill >> >> >> >> -- >> 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 rmcgraw at blomand.net > From jim at audiosystemsgroup.com Tue Apr 7 19:59:34 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 7 Apr 2020 16:59:34 -0700 Subject: [Elecraft] TX Calibration fails on 30m only THANKS TO TAX !!! In-Reply-To: <335212ff-f0ff-f81f-f737-65552414a555@arrl.net> References: <9d8b3faf-8afc-2028-2b56-64bf4f8c99a8@arrl.net> <87F59137-9C6E-4B52-929B-E4B3B78DE64D@blomand.net> <335212ff-f0ff-f81f-f737-65552414a555@arrl.net> Message-ID: <17d98066-f2b1-da0d-88b2-450531b9887d@audiosystemsgroup.com> On 4/7/2020 12:43 PM, Bill Steffey NY9H wrote: > Bob prompted what was my next step ..one short jumper to the load.. Expeditioners that do lots of portable setups have repeatedly preached that when anything goes wrong in a radio system to ALWAYS suspect a bad piece of coax, and usually a bad or poorly installed connector. Back in the days when I was doing lots of live recording and sound reinforcement gigs, it was mic cables. A standard test was to plug a mic into the mixer with the cable(s) to test, listen on headphones with the gain up, and "rattle" both ends and the cable itself to expose any faults. To test coax cables, I'd do something equivalent with low power into a dummy load and watching SWR at the rig. 73, Jim K9YC From kc6zkt at effable.com Tue Apr 7 20:35:12 2020 From: kc6zkt at effable.com (Steve KC6ZKT) Date: Tue, 7 Apr 2020 17:35:12 -0700 Subject: [Elecraft] KX3/KXPA100 as a mobile? Message-ID: <1fc428cd-89d5-aead-d244-0b48e9a7068e@effable.com> I have been thinking about installing an HF mobile rig. One idea that appeals to me is a KX3/KXPA100 setup, where the radio is can be placed and hooked-up in (passenger side) glove box, and the amp is more permanently installed under a back seat. I have two questions: 1) If you have tried this, can you tell me about your experience? How did it work? How was it set-up? Etc. 2) What will I be giving up if I cannot really operate the controls on the KXPA100 and only have the KX3 in front of me? -- --... ...-- SteveSgt, KC6ZKT, @CM97bj73 From pg at fivesevenfive.org Tue Apr 7 20:45:00 2020 From: pg at fivesevenfive.org (Phil Genera) Date: Tue, 7 Apr 2020 20:45:00 -0400 Subject: [Elecraft] KX3/KXPA100 as a mobile? In-Reply-To: <1fc428cd-89d5-aead-d244-0b48e9a7068e@effable.com> References: <1fc428cd-89d5-aead-d244-0b48e9a7068e@effable.com> Message-ID: To your second point, nothing. I had my KXPA100 in my basement for a few years, directly beneath my operating position. It worked great, after a bit of hacking to get the serial port accessible to the computer upstairs, for CAT control. On Tue, Apr 7, 2020, 20:35 Steve KC6ZKT wrote: > I have been thinking about installing an HF mobile rig. One idea that > appeals to me is a KX3/KXPA100 setup, where the radio is can be placed > and hooked-up in (passenger side) glove box, and the amp is more > permanently installed under a back seat. > > I have two questions: > > 1) If you have tried this, can you tell me about your experience? How > did it work? How was it set-up? Etc. > > 2) What will I be giving up if I cannot really operate the controls on > the KXPA100 and only have the KX3 in front of me? > -- > --... ...-- > SteveSgt, KC6ZKT, @CM97bj73 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pg at fivesevenfive.org > From k7jltextra at gmail.com Tue Apr 7 21:11:38 2020 From: k7jltextra at gmail.com (John Hendricks) Date: Tue, 7 Apr 2020 18:11:38 -0700 Subject: [Elecraft] KX3/KXPA100 as a mobile? In-Reply-To: <1fc428cd-89d5-aead-d244-0b48e9a7068e@effable.com> References: <1fc428cd-89d5-aead-d244-0b48e9a7068e@effable.com> Message-ID: I have used this combination successfully. Worked great if a efficent antenna is used on 20 meters. Have now moved the combination to a go box, capable of Pactor, with more digital modes to come. John K7JLT John K7JLT On Tue, Apr 7, 2020, 5:36 PM Steve KC6ZKT wrote: > I have been thinking about installing an HF mobile rig. One idea that > appeals to me is a KX3/KXPA100 setup, where the radio is can be placed > and hooked-up in (passenger side) glove box, and the amp is more > permanently installed under a back seat. > > I have two questions: > > 1) If you have tried this, can you tell me about your experience? How > did it work? How was it set-up? Etc. > > 2) What will I be giving up if I cannot really operate the controls on > the KXPA100 and only have the KX3 in front of me? > -- > --... ...-- > SteveSgt, KC6ZKT, @CM97bj73 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7jltextra at gmail.com > From scott.small at gmail.com Tue Apr 7 21:16:18 2020 From: scott.small at gmail.com (Tox) Date: Tue, 7 Apr 2020 18:16:18 -0700 Subject: [Elecraft] KX3/KXPA100 as a mobile? In-Reply-To: References: <1fc428cd-89d5-aead-d244-0b48e9a7068e@effable.com> Message-ID: Suggestions for a mobile HF antenna that could sanely be attached to a Rav4 ? Thanks Scott AD6YT On Tue, Apr 7, 2020 at 6:13 PM John Hendricks wrote: > > I have used this combination successfully. Worked great if a efficent > antenna is used on 20 meters. Have now moved the combination to a go box, > capable of Pactor, with more digital modes to come. > > John K7JLT > > John K7JLT > > On Tue, Apr 7, 2020, 5:36 PM Steve KC6ZKT wrote: > > > I have been thinking about installing an HF mobile rig. One idea that > > appeals to me is a KX3/KXPA100 setup, where the radio is can be placed > > and hooked-up in (passenger side) glove box, and the amp is more > > permanently installed under a back seat. > > > > I have two questions: > > > > 1) If you have tried this, can you tell me about your experience? How > > did it work? How was it set-up? Etc. > > > > 2) What will I be giving up if I cannot really operate the controls on > > the KXPA100 and only have the KX3 in front of me? > > -- > > --... ...-- > > SteveSgt, KC6ZKT, @CM97bj73 > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to k7jltextra 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 scott.small at gmail.com -- Scott Small From frantz at pwpconsult.com Tue Apr 7 21:49:31 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Tue, 7 Apr 2020 21:49:31 -0400 Subject: [Elecraft] KX3/KXPA100 as a mobile? In-Reply-To: Message-ID: On 4/7/20 at 9:16 PM, scott.small at gmail.com (Tox) wrote: >Suggestions for a mobile HF antenna that could sanely be attached to a Rav4 ? I have a Little Tarheel screwdriver antenna attached to my Subaru Forester. It seems to work well, the higher frequency bands are easier to use than the low frequency ones. I remember a SSB contact with Denmark while my wife was driving on I40 in the Mojave. He was working stations all over north and south America. It was one of my first DX contacts. I also remember using it on 80M with a 10W K3 during CQP. I would tune the radio, and when I found a station, I'd start transmitting and tuning the antenna. Usually by the time I got my call sign out the antenna was in tune. Every contact I made said, "You're really weak, but we'll make it work." Thanks to all of them for their efforts and the Qs. On 80M it is more of a preselector than an antenna. hihi 73 Bill AE6JV ----------------------------------------------------------------------- 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 ny9h at arrl.net Wed Apr 8 00:07:47 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Wed, 8 Apr 2020 00:07:47 -0400 Subject: [Elecraft] fails on 30m only THANKS TO TAX !!! In-Reply-To: <17d98066-f2b1-da0d-88b2-450531b9887d@audiosystemsgroup.com> References: <9d8b3faf-8afc-2028-2b56-64bf4f8c99a8@arrl.net> <87F59137-9C6E-4B52-929B-E4B3B78DE64D@blomand.net> <335212ff-f0ff-f81f-f737-65552414a555@arrl.net> <17d98066-f2b1-da0d-88b2-450531b9887d@audiosystemsgroup.com> Message-ID: <25e83adb-7136-d0a6-39e0-01ca1878b7e9@arrl.net> I wiggled all connections & conections,? then I took a small 50ohm load and inserted it at the few points from the radio thru my? TopTen relay setup? ? 2 radios by two amps to 6 ants ( 5 ants & 1 dummy load).? The culprit was my big palstar auto tuner while off , was NOT in bypass.? With that set properly all is good. Hopefully the only screwup made while reconfiguring my station.... my stay at home project. stay safe Jim.... bill/3 On 4/7/2020 7:59 PM, Jim Brown wrote: > On 4/7/2020 12:43 PM, Bill Steffey NY9H wrote: >> Bob prompted what was my next step ..one short jumper to the load.. > > Expeditioners that do lots of portable setups have repeatedly preached > that when anything goes wrong in a radio system to ALWAYS suspect a > bad piece of coax, and usually a bad or poorly installed connector. > > Back in the days when I was doing lots of live recording and sound > reinforcement gigs, it was mic cables. A standard test was to plug a > mic into the mixer with the cable(s) to test, listen on headphones > with the gain up, and "rattle" both ends and the cable itself to > expose any faults. To test coax cables, I'd do something equivalent > with low power into a dummy load and watching SWR at the rig. > > 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 ny9h at arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From rmcgraw at blomand.net Wed Apr 8 00:12:36 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Tue, 7 Apr 2020 23:12:36 -0500 Subject: [Elecraft] fails on 30m only THANKS TO TAX !!! In-Reply-To: <25e83adb-7136-d0a6-39e0-01ca1878b7e9@arrl.net> References: <9d8b3faf-8afc-2028-2b56-64bf4f8c99a8@arrl.net> <87F59137-9C6E-4B52-929B-E4B3B78DE64D@blomand.net> <335212ff-f0ff-f81f-f737-65552414a555@arrl.net> <17d98066-f2b1-da0d-88b2-450531b9887d@audiosystemsgroup.com> <25e83adb-7136-d0a6-39e0-01ca1878b7e9@arrl.net> Message-ID: <8d62b932-bf16-f781-b2f2-c80b629e7f88@blomand.net> One basic rule from the TAX man.........more crap = more problems.?? Always has been, always will be. 73 Bob, K4TAX On 4/7/2020 11:07 PM, Bill Steffey NY9H wrote: > I wiggled all connections & conections,? then I took a small 50ohm > load and inserted it at the few points from the radio thru my? TopTen > relay setup? ? 2 radios by two amps to 6 ants ( 5 ants & 1 dummy > load).? The culprit was my big palstar auto tuner while off , was NOT > in bypass.? With that set properly all is good. Hopefully the only > screwup made while reconfiguring my station.... my stay at home project. > > stay safe Jim.... > > > bill/3 > > > On 4/7/2020 7:59 PM, Jim Brown wrote: >> On 4/7/2020 12:43 PM, Bill Steffey NY9H wrote: >>> Bob prompted what was my next step ..one short jumper to the load.. >> >> Expeditioners that do lots of portable setups have repeatedly >> preached that when anything goes wrong in a radio system to ALWAYS >> suspect a bad piece of coax, and usually a bad or poorly installed >> connector. >> >> Back in the days when I was doing lots of live recording and sound >> reinforcement gigs, it was mic cables. A standard test was to plug a >> mic into the mixer with the cable(s) to test, listen on headphones >> with the gain up, and "rattle" both ends and the cable itself to >> expose any faults. To test coax cables, I'd do something equivalent >> with low power into a dummy load and watching SWR at the rig. >> >> 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 ny9h at arrl.net > From kb1tcd at gmail.com Wed Apr 8 07:30:49 2020 From: kb1tcd at gmail.com (JP Douglas) Date: Wed, 8 Apr 2020 07:30:49 -0400 Subject: [Elecraft] KX3/KXPA100 as a mobile? In-Reply-To: References: <1fc428cd-89d5-aead-d244-0b48e9a7068e@effable.com> Message-ID: <041066AB-87E6-417F-86A5-DECAD103BC1B@gmail.com> I use a spanish made Falcon Outback 1899 antenna w/Goliath mag mount. Supposed to do 80 -6 metres but won?t do 80 in my little Chevy, has jumpers for diff bands. Max 125 watt. Works great for me. 73 de Jose Douglas KB1TCD Sent from my iPad > On Apr 7, 2020, at 9:16 PM, Tox wrote: > > Suggestions for a mobile HF antenna that could sanely be attached to a Rav4 ? > > Thanks > Scott > AD6YT > >> On Tue, Apr 7, 2020 at 6:13 PM John Hendricks wrote: >> >> I have used this combination successfully. Worked great if a efficent >> antenna is used on 20 meters. Have now moved the combination to a go box, >> capable of Pactor, with more digital modes to come. >> >> John K7JLT >> >> John K7JLT >> >>> On Tue, Apr 7, 2020, 5:36 PM Steve KC6ZKT wrote: >>> >>> I have been thinking about installing an HF mobile rig. One idea that >>> appeals to me is a KX3/KXPA100 setup, where the radio is can be placed >>> and hooked-up in (passenger side) glove box, and the amp is more >>> permanently installed under a back seat. >>> >>> I have two questions: >>> >>> 1) If you have tried this, can you tell me about your experience? How >>> did it work? How was it set-up? Etc. >>> >>> 2) What will I be giving up if I cannot really operate the controls on >>> the KXPA100 and only have the KX3 in front of me? >>> -- >>> --... ...-- >>> SteveSgt, KC6ZKT, @CM97bj73 >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to k7jltextra 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 scott.small at gmail.com > > > > -- > Scott Small > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 n1nk at cox.net Wed Apr 8 17:21:06 2020 From: n1nk at cox.net (Jim Spears) Date: Wed, 8 Apr 2020 17:21:06 -0400 Subject: [Elecraft] K3 s/n 798 TX calibration fails for 6m only - final report from N1NK / K3IU Message-ID: <011801d60deb$9f200600$dd601200$@cox.net> I reported problems with the TX Calibration failing for 6m only. Several offered ideas and suggestions. The problem turned out to have been described in earlier conversations and "the fix" described by Trinity, WE6R, and Howard, K6IA. Ken, K3IU, pointed me to conversations which indicate that the IF Trap circuit, L10 and C10 on the KAT3 board, had probably failed. Ken removed both components and replaced them with a jumper. The TX Calibration test now passes with flying colors. Problem solved! At some point after the board went into production, it was decided that this circuit is not necessary. Therefore removing it has no negative effect and is "the fix" for TX Calibration failure for at least single band 6m only failure. I do not know about any relationship with failure on other bands. The radio is now fully operable. It is not obvious what, if any, hardware mods have been made to this radio over the years. Jim N1NK From kk1l at comcast.net Wed Apr 8 19:41:41 2020 From: kk1l at comcast.net (KK1L) Date: Wed, 8 Apr 2020 16:41:41 -0700 (MST) Subject: [Elecraft] KX2: Is it possible to clear the clock with a command on the interface? Message-ID: <1586389301249-0.post@n2.nabble.com> Folks, Wondering if it is possible to send a command to clear the clock on the KX2. I am considering using a macros to set the time, but the menu only allows up/down jof the HH, MM, SS; rather than setting an actual value. If I could clear the clock to zero I could also set the time. I have looked through the command set pretty well and think the answer is "no", but figured I would ask. thanks. 73 es God Bless, KK1L Ron <>< -- Sent from: http://elecraft.365791.n2.nabble.com/ From ghyoungman at gmail.com Wed Apr 8 19:45:52 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Wed, 8 Apr 2020 19:45:52 -0400 Subject: [Elecraft] KX2: Is it possible to clear the clock with a command on the interface? In-Reply-To: <1586389301249-0.post@n2.nabble.com> References: <1586389301249-0.post@n2.nabble.com> Message-ID: You can set the tine from the KX2 utility ?. > On Apr 8, 2020, at 7:41 PM, KK1L wrote: > > Folks, > > Wondering if it is possible to send a command to clear the clock on the KX2. > I am considering using a macros to set the time, but the menu only allows > up/down jof the HH, MM, SS; rather than setting an actual value. If I could > clear the clock to zero I could also set the time. I have looked through the > command set pretty well and think the answer is "no", but figured I would > ask. > From kk1l at comcast.net Wed Apr 8 19:56:11 2020 From: kk1l at comcast.net (Ron Rossi) Date: Wed, 8 Apr 2020 19:56:11 -0400 Subject: [Elecraft] KX2: Is it possible to clear the clock with a command on the interface? In-Reply-To: References: <1586389301249-0.post@n2.nabble.com> Message-ID: <305d2596-2d6a-511e-1b66-5d471efa08ce@comcast.net> I did not find a direct set for the clock. I know about the MN074; command to bring up the clock and then UP;/DN; to change the hour or min or sec from whatever it happens to be. Setting the time automatically would have to start from a known state. 73 es God Bless de KK1L...Ron Rossi (kk1l at comcast.net) <>< QTH: Jericho, Vermont My page: http://kk1l.com On 4/8/2020 19:45, Grant Youngman wrote: > You can set the tine from the KX2 utility ?. > >> On Apr 8, 2020, at 7:41 PM, KK1L wrote: >> >> Folks, >> >> Wondering if it is possible to send a command to clear the clock on the KX2. >> I am considering using a macros to set the time, but the menu only allows >> up/down jof the HH, MM, SS; rather than setting an actual value. If I could >> clear the clock to zero I could also set the time. I have looked through the >> command set pretty well and think the answer is "no", but figured I would >> ask. >> From ghyoungman at gmail.com Wed Apr 8 20:00:58 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Wed, 8 Apr 2020 20:00:58 -0400 Subject: [Elecraft] KX2: Is it possible to clear the clock with a command on the interface? In-Reply-To: <305d2596-2d6a-511e-1b66-5d471efa08ce@comcast.net> References: <1586389301249-0.post@n2.nabble.com> <305d2596-2d6a-511e-1b66-5d471efa08ce@comcast.net> Message-ID: <90FFDECB-7D0C-4593-A53B-E426D2E66477@gmail.com> It is not a macro. It?s under the Configuration tab of the KX2 Utility ?. it will set the KX2 tie to your computer time. Grant NQ5T > On Apr 8, 2020, at 7:56 PM, Ron Rossi wrote: > > I did not find a direct set for the clock. I know about the MN074; command to bring up the clock and then UP;/DN; to change the hour or min or sec from whatever it happens to be. Setting the time automatically would have to start from a known state. > > 73 es God Bless de KK1L...Ron Rossi (kk1l at comcast.net) <>< > QTH: Jericho, Vermont > My page: http://kk1l.com > > On 4/8/2020 19:45, Grant Youngman wrote: >> You can set the tine from the KX2 utility ?. >> >>> On Apr 8, 2020, at 7:41 PM, KK1L wrote: >>> >>> Folks, >>> >>> Wondering if it is possible to send a command to clear the clock on the KX2. >>> I am considering using a macros to set the time, but the menu only allows >>> up/down jof the HH, MM, SS; rather than setting an actual value. If I could >>> clear the clock to zero I could also set the time. I have looked through the >>> command set pretty well and think the answer is "no", but figured I would >>> ask. >>> > From kk1l at comcast.net Wed Apr 8 20:21:34 2020 From: kk1l at comcast.net (Ron Rossi) Date: Wed, 8 Apr 2020 20:21:34 -0400 Subject: [Elecraft] KX2: Is it possible to clear the clock with a command on the interface? In-Reply-To: <90FFDECB-7D0C-4593-A53B-E426D2E66477@gmail.com> References: <1586389301249-0.post@n2.nabble.com> <305d2596-2d6a-511e-1b66-5d471efa08ce@comcast.net> <90FFDECB-7D0C-4593-A53B-E426D2E66477@gmail.com> Message-ID: I just noticed that. It is greyed out for me. No option to click it. 73 es God Bless de KK1L...Ron Rossi (kk1l at comcast.net) <>< QTH: Jericho, Vermont My page: http://kk1l.com On 4/8/2020 20:00, Grant Youngman wrote: > It is not a macro. It?s under the Configuration tab of the KX2 Utility ?. it will set the KX2 tie to your computer time. > > Grant NQ5T > >> On Apr 8, 2020, at 7:56 PM, Ron Rossi wrote: >> >> I did not find a direct set for the clock. I know about the MN074; command to bring up the clock and then UP;/DN; to change the hour or min or sec from whatever it happens to be. Setting the time automatically would have to start from a known state. >> >> 73 es God Bless de KK1L...Ron Rossi (kk1l at comcast.net) <>< >> QTH: Jericho, Vermont >> My page: http://kk1l.com >> >> On 4/8/2020 19:45, Grant Youngman wrote: >>> You can set the tine from the KX2 utility ?. >>> >>>> On Apr 8, 2020, at 7:41 PM, KK1L wrote: >>>> >>>> Folks, >>>> >>>> Wondering if it is possible to send a command to clear the clock on the KX2. >>>> I am considering using a macros to set the time, but the menu only allows >>>> up/down jof the HH, MM, SS; rather than setting an actual value. If I could >>>> clear the clock to zero I could also set the time. I have looked through the >>>> command set pretty well and think the answer is "no", but figured I would >>>> ask. >>>> From ghyoungman at gmail.com Wed Apr 8 20:22:42 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Wed, 8 Apr 2020 20:22:42 -0400 Subject: [Elecraft] KX2: Is it possible to clear the clock with a command on the interface? In-Reply-To: References: <1586389301249-0.post@n2.nabble.com> <305d2596-2d6a-511e-1b66-5d471efa08ce@comcast.net> <90FFDECB-7D0C-4593-A53B-E426D2E66477@gmail.com> Message-ID: <593DDCB3-39AB-43BE-AFEF-8557C1FAF395@gmail.com> Are you sure you have a connection to the radio that?s working? > On Apr 8, 2020, at 8:21 PM, Ron Rossi wrote: > > I just noticed that. It is greyed out for me. No option to click it. > > 73 es God Bless de KK1L...Ron Rossi (kk1l at comcast.net) <>< > QTH: Jericho, Vermont > My page: http://kk1l.com > > On 4/8/2020 20:00, Grant Youngman wrote: >> It is not a macro. It?s under the Configuration tab of the KX2 Utility ?. it will set the KX2 tie to your computer time. >> From ny9h at arrl.net Wed Apr 8 20:27:05 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Wed, 8 Apr 2020 20:27:05 -0400 Subject: [Elecraft] KX3/KXPA100 as a mobile? In-Reply-To: References: Message-ID: <8728a55c-2ceb-3d41-1a2f-158315d09abd@arrl.net> started with a kx3 & kxpa100 to replace an icom 706. But the kx3 would not fit between the seats? on my VW..back to the 706. ?and then I picked up a kx2 the first day at dayton. IT FIT.? But wait ...it fit in the dash, even better. At a stoplight a lady asked from adjacent car what it that thing on your roof. My little tarhill on a quick mount on my roofrack. How far can you talk on THAT ....?? how about from Walmart's parking lot to ? ? KUWAIT.....? no wires...no internet.. From my Chicago mobile I have repeatedly worked a Sunday morning net in Western PA ( a PEMA net) ...on 80 !!!! on that quite small antenna. For 20 years I had used an ATAS antenna with the 706,? sadly the antenna housing oxidised tight and became unservicable. Tried a second antenna...it did the same. The TARHEEL is fantastic and I do take it apart yearly. pictures of the setup are available on my QRZ page ... midway down the page under " PA PICTURES CLICK HERE " -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From nr4c at widomaker.com Wed Apr 8 20:29:22 2020 From: nr4c at widomaker.com (Nr4c) Date: Wed, 8 Apr 2020 20:29:22 -0400 Subject: [Elecraft] KX2: Is it possible to clear the clock with a command on the interface? In-Reply-To: <1586389301249-0.post@n2.nabble.com> References: <1586389301249-0.post@n2.nabble.com> Message-ID: <86F0566E-F779-4B6B-9E0A-199C6FBA4DF2@widomaker.com> Doesn?t the KX2 Utility have a function to set the time/date? Sent from my iPhone ...nr4c. bill > On Apr 8, 2020, at 7:43 PM, KK1L wrote: > > ?Folks, > > Wondering if it is possible to send a command to clear the clock on the KX2. > I am considering using a macros to set the time, but the menu only allows > up/down jof the HH, MM, SS; rather than setting an actual value. If I could > clear the clock to zero I could also set the time. I have looked through the > command set pretty well and think the answer is "no", but figured I would > ask. > > thanks. > > 73 es God Bless, KK1L Ron <>< > > > > -- > 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 nr4c at widomaker.com From nr4c at widomaker.com Wed Apr 8 20:31:59 2020 From: nr4c at widomaker.com (Nr4c) Date: Wed, 8 Apr 2020 20:31:59 -0400 Subject: [Elecraft] KX2: Is it possible to clear the clock with a command on the interface? In-Reply-To: References: Message-ID: Do you have the clock installed? Sent from my iPhone ...nr4c. bill > On Apr 8, 2020, at 8:23 PM, Ron Rossi wrote: > > ?I just noticed that. It is greyed out for me. No option to click it. > > 73 es God Bless de KK1L...Ron Rossi (kk1l at comcast.net) <>< > QTH: Jericho, Vermont > My page: http://kk1l.com > >> On 4/8/2020 20:00, Grant Youngman wrote: >> It is not a macro. It?s under the Configuration tab of the KX2 Utility ?. it will set the KX2 tie to your computer time. >> >> Grant NQ5T >> >>>> On Apr 8, 2020, at 7:56 PM, Ron Rossi wrote: >>> >>> I did not find a direct set for the clock. I know about the MN074; command to bring up the clock and then UP;/DN; to change the hour or min or sec from whatever it happens to be. Setting the time automatically would have to start from a known state. >>> >>> 73 es God Bless de KK1L...Ron Rossi (kk1l at comcast.net) <>< >>> QTH: Jericho, Vermont >>> My page: http://kk1l.com >>> >>> On 4/8/2020 19:45, Grant Youngman wrote: >>>> You can set the tine from the KX2 utility ?. >>>> >>>>> On Apr 8, 2020, at 7:41 PM, KK1L wrote: >>>>> >>>>> Folks, >>>>> >>>>> Wondering if it is possible to send a command to clear the clock on the KX2. >>>>> I am considering using a macros to set the time, but the menu only allows >>>>> up/down jof the HH, MM, SS; rather than setting an actual value. If I could >>>>> clear the clock to zero I could also set the time. I have looked through the >>>>> command set pretty well and think the answer is "no", but figured I would >>>>> ask. >>>>> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 elanzl at sbcglobal.net Wed Apr 8 20:39:24 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Thu, 9 Apr 2020 00:39:24 +0000 (UTC) Subject: [Elecraft] Please join Zoom meeting in progress References: <1068559560.3083578.1586392764940.ref@mail.yahoo.com> Message-ID: <1068559560.3083578.1586392764940@mail.yahoo.com> Join Zoom Meeting https://zoom.us/j/726813432?pwd=ZlFzUXgrY0xDVTJXN25kenlzdjc3UT09 Meeting ID: 726 813 432 Password: 0WJfty From rwnewbould at comcast.net Wed Apr 8 23:08:53 2020 From: rwnewbould at comcast.net (Rich) Date: Wed, 8 Apr 2020 23:08:53 -0400 Subject: [Elecraft] Looking for KPA3A Message-ID: <34d65a08-3582-9c67-0fdf-aa0428cab498@comcast.net> Does anyone have a KPA3A they would like to sell? Contact me direct k3rwn at arrl.net Thanks Rich From w1ie at jetbroadband.com Thu Apr 9 10:05:07 2020 From: w1ie at jetbroadband.com (w1ie at jetbroadband.com) Date: Thu, 9 Apr 2020 10:05:07 -0400 Subject: [Elecraft] Life span for the relays in Elecraft products. Message-ID: <01e301d60e77$e04629c0$a0d27d40$@jetbroadband.com> GM All, Not long ago, I sent a request in to the Mothership support center asking about the MTBF for the relays in the K3 and KAT500 ( and possibly all of the Elecraft products). Doug's response back was to send me the manufacture's part numbers of three types of relays. He suggested that I could easily looked up the datasheets on the internet and obtain the information I would need. Having now the part numbers; 1. Panasonic AGN2104H 2. Omron G6E-134P-ST-US-DC12 and G6K-2P-DC5 This is what I found. The number of mechanical and electrical cycles, for the most part, is generally a minimum of 100 million cycles mechanical and slightly less in electrical. These values were calculated at the rate of 36,000 times per hour. So rest easy, if you were ever concerned about the clicking and clacking and what it might be doing to the quality of the relays. They will probably out last the K3 and certainly you. Best regards and stay safe, Jerry, W1IE From f8acf56 at gmail.com Thu Apr 9 15:25:19 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Thu, 9 Apr 2020 21:25:19 +0200 Subject: [Elecraft] setting KPA 100 page 48 problem Message-ID: Good morning all , Zero adjustment of SWR bridge (C1) page 48 as you see on the video , I set the K2 to 5Watts https://we.tl/t-MOz5AX1v3l I managed to adjust the SWR the K2 announces my power at 0.1 Watts !! the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps I should have 5 Watts Thank you for your help # K2 7369 - kpa 100 in progress -- 73 , F8ACF56 From a.durbin at msn.com Thu Apr 9 20:03:36 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 10 Apr 2020 00:03:36 +0000 Subject: [Elecraft] Life span for the relays in Elecraft products Message-ID: "So rest easy, if you were ever concerned about the clicking and clacking and what it might be doing to the quality of the relays. They will probably out last the K3 and certainly you." The key word in MTBF is "mean". How lucky do you feel? Relay failures, especially in tuners, can give faults that are quite difficult to trace. In the last few month there have been I think 2 KPA500 faults mentioned on this list that were attributed to stuck relay contacts. I am also aware of a recent TS-590 failure caused by a failed tuner relay. Is your relay life half full or half empty? Andy, k3wyc From donwilh at embarqmail.com Thu Apr 9 20:56:43 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 9 Apr 2020 20:56:43 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: Message-ID: Christophe, When doing the C1 adjustment, look for the lowest voltage measured at U5 pin 1 (TP4) -do not look at the SWR at that point, but look for the lowest voltage on your DMM. Once you have achieved that null, then you will adjust the R26 and R27 potentiometers for the power indication and SWR indication. Do it as specified in the manual. Use 10 watts of power rather than 5 for a better indication. After you have done the calibration at 10 watts, do a TUNE/DISPLAY (hold both buttons together) with the power set a 80 watts or so, and fine tune the adjustment of R26 to make the K2 power indication match your external wattmeter. Do not bother to adjust R27 again unless you had to move R26 a significant amount (if you had to move R27 a lot, you may have another problem to resolve). 73, Don W3FPR On 4/9/2020 3:25 PM, Christophe aufacf wrote: > Good morning all , > > Zero adjustment of SWR bridge (C1) page 48 > > as you see on the video , I set the K2 to 5Watts > > https://we.tl/t-MOz5AX1v3l > > I managed to adjust the SWR the K2 announces my power at 0.1 Watts !! > > the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps > > I should have 5 Watts > > Thank you for your help > > # K2 7369 - kpa 100 in progress > From donwilh at embarqmail.com Thu Apr 9 21:11:18 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 9 Apr 2020 21:11:18 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: Message-ID: Christophe, I forgot to mention, Before attempting to adjust the C1 null, first pre-set R26 and R27 to 43k ohms. Measure R26 from U5 pin 5 to ground and R27 at U5 pin 3 to ground. Then go through the nulling process followed by the power setting process that I outlined in my prior email. 73, Don W3FPR On 4/9/2020 3:25 PM, Christophe aufacf wrote: > Good morning all , > > Zero adjustment of SWR bridge (C1) page 48 > > as you see on the video , I set the K2 to 5Watts > > https://we.tl/t-MOz5AX1v3l > > I managed to adjust the SWR the K2 announces my power at 0.1 Watts !! > > the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps > > I should have 5 Watts > > Thank you for your help > > # K2 7369 - kpa 100 in progress From dons at ieee.org Thu Apr 9 21:11:54 2020 From: dons at ieee.org (Don Sayler) Date: Thu, 9 Apr 2020 18:11:54 -0700 Subject: [Elecraft] sdr play and K3S Message-ID: <017b01d60ed5$067174d0$13545e70$@ieee.org> Hi Everyone. I've been trying to get my SDRPlay (w/ SdrUno) to work with the IF output of my K3S. I've got OmniRig set up, so the K3S and SdrUno interact properly. Well, almost. There seems to be an offset between the K3S frequency and the SdrUno frequency. For example, I dial in WWV at 10 MHz on the K3S, and SdrUno hears the signal at ~9.875 MHz. On 80m, this offset is around 117KHz. I've tried the setting the External Converter offsets, that didn't help. In SdrPlay, I do have the IF Output Frequency set to 8125000 Hz and it is enabled. I've tried adjusting this value a little, and it didn't seem to help. I am aware of some of the limitations of SdrUno compared to other software, but this is the one that I'm used to. I may switch to another one at some point. Any ideas? I looked through the K3S config settings, and nothing jumped out at me. Thanks! 73, Don W7OXR From rmcgraw at blomand.net Thu Apr 9 21:42:53 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 9 Apr 2020 20:42:53 -0500 Subject: [Elecraft] sdr play and K3S In-Reply-To: <017b01d60ed5$067174d0$13545e70$@ieee.org> References: <017b01d60ed5$067174d0$13545e70$@ieee.org> Message-ID: <314F760A-9C58-4B79-A326-8D1B16E82655@blomand.net> I?ve used the RSP-1a with HDSDR. I had to set the calibration for overall and then for each mode. Some values were + and some - . Also I found my SDR Play RSP-1a does drift noticeably. Finall tossed the thing in the drawer and purchased a P3. Much more satisfactory. Bob, K4TAX Sent from my iPhone > On Apr 9, 2020, at 8:28 PM, Don Sayler wrote: > > ?Hi Everyone. > > > > I've been trying to get my SDRPlay (w/ SdrUno) to work with the IF output of > my K3S. > > I've got OmniRig set up, so the K3S and SdrUno interact properly. Well, > almost. > > > > There seems to be an offset between the K3S frequency and the SdrUno > frequency. For example, I dial in WWV at 10 MHz on the K3S, and SdrUno hears > the signal at ~9.875 MHz. > > On 80m, this offset is around 117KHz. I've tried the setting the External > Converter offsets, that didn't help. > > > > In SdrPlay, I do have the IF Output Frequency set to 8125000 Hz and it is > enabled. I've tried adjusting this value a little, and it didn't seem to > help. > > I am aware of some of the limitations of SdrUno compared to other software, > but this is the one that I'm used to. I may switch to another one at some > point. > > > > Any ideas? I looked through the K3S config settings, and nothing jumped out > at me. > > > > Thanks! > > > > 73, > > Don W7OXR > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 barrylazar2 at gmail.com Fri Apr 10 00:31:31 2020 From: barrylazar2 at gmail.com (Barry) Date: Fri, 10 Apr 2020 04:31:31 +0000 Subject: [Elecraft] sdr play and K3S In-Reply-To: <314F760A-9C58-4B79-A326-8D1B16E82655@blomand.net> References: <017b01d60ed5$067174d0$13545e70$@ieee.org> <314F760A-9C58-4B79-A326-8D1B16E82655@blomand.net> Message-ID: Bob I have been using the SDRPlay to drive Win4k3. It works with little problem. That problem is setting the global offset so that it matches exactly your K3s. Not all SDR software will play nicely being driven by the SDRPlay. And, BTW; If you are going to use narrows roofing filters, you are going to need to account for the fact that each has a slightly different calibration frequency. It's no big deal, but it should be set for your specific radio. 73, Barry K3NDM ------ Original Message ------ From: "Bob McGraw K4TAX" To: "Don Sayler" Cc: "Elecraft Reflector" Sent: 4/9/2020 9:42:53 PM Subject: Re: [Elecraft] sdr play and K3S >I?ve used the RSP-1a with HDSDR. I had to set the calibration for overall and then for each mode. Some values were + and some - . Also I found my SDR Play RSP-1a does drift noticeably. > >Finall tossed the thing in the drawer and purchased a P3. Much more satisfactory. > >Bob, K4TAX > > >Sent from my iPhone > >> On Apr 9, 2020, at 8:28 PM, Don Sayler wrote: >> >> ?Hi Everyone. >> >> >> >> I've been trying to get my SDRPlay (w/ SdrUno) to work with the IF output of >> my K3S. >> >> I've got OmniRig set up, so the K3S and SdrUno interact properly. Well, >> almost. >> >> >> >> There seems to be an offset between the K3S frequency and the SdrUno >> frequency. For example, I dial in WWV at 10 MHz on the K3S, and SdrUno hears >> the signal at ~9.875 MHz. >> >> On 80m, this offset is around 117KHz. I've tried the setting the External >> Converter offsets, that didn't help. >> >> >> >> In SdrPlay, I do have the IF Output Frequency set to 8125000 Hz and it is >> enabled. I've tried adjusting this value a little, and it didn't seem to >> help. >> >> I am aware of some of the limitations of SdrUno compared to other software, >> but this is the one that I'm used to. I may switch to another one at some >> point. >> >> >> >> Any ideas? I looked through the K3S config settings, and nothing jumped out >> at me. >> >> >> >> Thanks! >> >> >> >> 73, >> >> Don W7OXR >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 barrylazar2 at gmail.com From kl7uw at acsalaska.net Fri Apr 10 01:47:03 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Thu, 09 Apr 2020 21:47:03 -0800 Subject: [Elecraft] KX3/KXPA100 as a mobile? Message-ID: <202004100547.03A5l42W022683@mail46c28.carrierzone.com> I would say the pair were designed for mobile operation. Be sure to use the RJ45 control cable to remotely control the KXPA100. I installed mine in my Ford F2504x4 truck for use when traveling with our 30-foot 5th wheel trailer. Details: http://www.kl7uw.com/Mobile.htm I tried some hamsticks unsuccessfully. Eventually will get a Tarheel to install on front corner of the bed. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From g4gnx at g4gnx.com Fri Apr 10 07:26:49 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Fri, 10 Apr 2020 11:26:49 +0000 Subject: [Elecraft] KPA 500 Message-ID: I have a strange fault a couple of times recently, where the SWR starts to increase during the time of a single 'over'. I've been using the K3S set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, without any problem, but after I've switched the linear to Operate and driving it to 200W, the SWR creeps up. I don't think it's an antenna issue, but a possible heat problem with the KPA500. I watched the temperature display on the KPA500 and initially on Standby it shows about 38 degrees C. After transmitting at 200W the temperature slowly rises above 60 degrees C, but the fan doesn't cut in. Does anyone know if this is normal behavior and what temperatures I should expect to see? I have tested the fan via the Menu function and it works as expected. 73, Alan. G4GNX From f8acf56 at gmail.com Fri Apr 10 09:29:46 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Fri, 10 Apr 2020 15:29:46 +0200 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: Message-ID: hello Don, hello everyone, this morning I tested the K2 on my own. the consumption (ampere) of K2 gave me part of the solution the K2 alone in transmission consumes 0.5 amp on 40M then on the other 2 amp bands with a setting at 5Watts so I have no broadcast on 40M only, we can hear the relays switch ... after I admit being a bit lost to know where to start I will review the soldering of relays K1, K12, K14 in case ... could you give me advice since you know the K2 very well Thanks in advance Don 73 ,F8ACF # K2 7369 - kpa 100 in progress Le ven. 10 avr. 2020 ? 03:11, Don Wilhelm a ?crit : > > Christophe, > > I forgot to mention, > Before attempting to adjust the C1 null, first pre-set R26 and R27 to > 43k ohms. Measure R26 from U5 pin 5 to ground and R27 at U5 pin 3 to > ground. > > Then go through the nulling process followed by the power setting > process that I outlined in my prior email. > > 73, > Don W3FPR > > On 4/9/2020 3:25 PM, Christophe aufacf wrote: > > Good morning all , > > > > Zero adjustment of SWR bridge (C1) page 48 > > > > as you see on the video , I set the K2 to 5Watts > > > > https://we.tl/t-MOz5AX1v3l > > > > I managed to adjust the SWR the K2 announces my power at 0.1 Watts !! > > > > the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps > > > > I should have 5 Watts > > > > Thank you for your help > > > > # K2 7369 - kpa 100 in progress -- 73 , F8ACF56 From Lyn at LNAINC.com Fri Apr 10 09:59:29 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Fri, 10 Apr 2020 08:59:29 -0500 Subject: [Elecraft] KPA 500 In-Reply-To: References: Message-ID: <000301d60f40$4113f980$c33bec80$@LNAINC.com> At 100w on 20m, my KAT500 Utility shows an SWR of 1.00 with the KPA500 on Standby and temp around 38?C. But as I switch the KPA to Operate and increase the power to 300w the SWR goes up as high as 1.10. If I hold it there (key down) long enough the KPA temp starts rising slowly. At about 50?C I can hear the fan picking up speed. By the time I get to 60?C the fan is at probably level 2 or 3. SWR is still at 1.10 (max). Right or wrong, I've always assumed there is some slight heating in the antenna system (Tuner, Balun, Lightning protection) although all components after the tuner are rated at 5 KW. 73 Lyn, W?LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Alan - G4GNX Sent: Friday, April 10, 2020 6:27 AM To: Elecraft Reflector Subject: [Elecraft] KPA 500 I have a strange fault a couple of times recently, where the SWR starts to increase during the time of a single 'over'. I've been using the K3S set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, without any problem, but after I've switched the linear to Operate and driving it to 200W, the SWR creeps up. I don't think it's an antenna issue, but a possible heat problem with the KPA500. I watched the temperature display on the KPA500 and initially on Standby it shows about 38 degrees C. After transmitting at 200W the temperature slowly rises above 60 degrees C, but the fan doesn't cut in. Does anyone know if this is normal behavior and what temperatures I should expect to see? I have tested the fan via the Menu function and it works as expected. 73, Alan. G4GNX From k2vco.vic at gmail.com Fri Apr 10 10:15:59 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Fri, 10 Apr 2020 17:15:59 +0300 Subject: [Elecraft] KPA 500 In-Reply-To: References: Message-ID: I would be more likely to suspect something after the KPA500, such as the tuner or a balun. I've experienced significant balun heating, especially when using a balun other than a straight-through 1:1 balun, or when the load is highly reactive. Balun power ratings assume a non-reactive load. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 10/04/2020 14:26, Alan - G4GNX wrote: > > I have a strange fault a couple of times recently, where the SWR starts > to increase during the time of a single 'over'. I've been using the K3S > set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, > without any problem, but after I've switched the linear to Operate and > driving it to 200W, the SWR creeps up. I don't think it's an antenna > issue, but a possible heat problem with the KPA500. I watched the > temperature display on the KPA500 and initially on Standby it shows > about 38 degrees C. After transmitting at 200W the temperature slowly > rises above 60 degrees C, but the fan doesn't cut in. Does anyone know > if this is normal behavior and what temperatures I should expect to see? > I have tested the fan via the Menu function and it works as expected. > > 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 k2vco.vic at gmail.com From marklgoldberg at gmail.com Fri Apr 10 11:07:16 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Fri, 10 Apr 2020 08:07:16 -0700 Subject: [Elecraft] KPA 500 In-Reply-To: References: Message-ID: My experience is that slowly increasing SWR is from a component heating up, usually an inductor in a tuner or balun. You don't see it with lower power. Ferrite cores change their inductance radically as they heat up near their Curie temperature. If they get to their Curie temperature, they lost their magnetic properties. As the SWR goes up, they get even hotter, SWR goes up more and if you don't stop transmitting, they will fail. All SWRs with the same number are not equal in terms of losses in a tuner or balun. As Victor described, when the load it highly reactive, there are more losses in the tuner or balun. If you have an IR thermometer, you should be able to point it at inductors and see what is getting hot. I've got a horizontal loop that is slightly too small for 160. I have an added shunt inductor in the line to allow my tuner to tune it, but the inductor, which is on a 2.4" core still gets hot. Most tuners have smaller inductors than that. My home built balun also has 2.4" cores. Many baluns use smaller cores. 73, Mark W7MLG On Fri, Apr 10, 2020 at 7:16 AM Victor Rosenthal 4X6GP wrote: > I would be more likely to suspect something after the KPA500, such as > the tuner or a balun. I've experienced significant balun heating, > especially when using a balun other than a straight-through 1:1 balun, > or when the load is highly reactive. Balun power ratings assume a > non-reactive load. > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > CWops no. 5 > http://www.qsl.net/k2vco/ > On 10/04/2020 14:26, Alan - G4GNX wrote: > > > > I have a strange fault a couple of times recently, where the SWR starts > > to increase during the time of a single 'over'. I've been using the K3S > > set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, > > without any problem, but after I've switched the linear to Operate and > > driving it to 200W, the SWR creeps up. I don't think it's an antenna > > issue, but a possible heat problem with the KPA500. I watched the > > temperature display on the KPA500 and initially on Standby it shows > > about 38 degrees C. After transmitting at 200W the temperature slowly > > rises above 60 degrees C, but the fan doesn't cut in. Does anyone know > > if this is normal behavior and what temperatures I should expect to see? > > I have tested the fan via the Menu function and it works as expected. > > > > 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 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 marklgoldberg at gmail.com > From donwilh at embarqmail.com Fri Apr 10 11:17:02 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 10 Apr 2020 11:17:02 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: Message-ID: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> Christophe, The most common cause of a 40 meter only failure in the K2 is an incorrect setting of the D19 secondary menu parameter. If you have the K60XV option installed, or if you installed the "Rework Eliminators" when you built the K2, you must set D19 to "y". If you do not have either the K60XV or the Rework Eliminators, then the D19 parameter must be set to "n". If the above is not applicable, you may have a problem in the 40 meter bandpass filter.?? Check the capacitors in that bandpass filter - C5 and C7 = 100pF, C4 and C8 = 820pF, C6 = 4.7pF. Also check the VFO frequency when the K2 is set to 7100kHz, it should be close to 12,015kHz. 73, Don W3FPR On 4/10/2020 9:29 AM, Christophe aufacf wrote: > hello Don, hello everyone, > > this morning I tested the K2 on my own. > > the consumption (ampere) of K2 gave me part of the solution > > the K2 alone in transmission consumes 0.5 amp on 40M then on the other > 2 amp bands with a setting at 5Watts > > so I have no broadcast on 40M only, we can hear the relays switch ... > > after I admit being a bit lost to know where to start > > I will review the soldering of relays K1, K12, K14 in case ... > > could you give me advice since you know the K2 very well > > Thanks in advance Don > > 73 ,F8ACF > > # K2 7369 - kpa 100 in progress > > Le ven. 10 avr. 2020 ? 03:11, Don Wilhelm a ?crit : >> Christophe, >> >> I forgot to mention, >> Before attempting to adjust the C1 null, first pre-set R26 and R27 to >> 43k ohms. Measure R26 from U5 pin 5 to ground and R27 at U5 pin 3 to >> ground. >> >> Then go through the nulling process followed by the power setting >> process that I outlined in my prior email. >> >> 73, >> Don W3FPR >> >> On 4/9/2020 3:25 PM, Christophe aufacf wrote: >>> Good morning all , >>> >>> Zero adjustment of SWR bridge (C1) page 48 >>> >>> as you see on the video , I set the K2 to 5Watts >>> >>> https://we.tl/t-MOz5AX1v3l >>> >>> I managed to adjust the SWR the K2 announces my power at 0.1 Watts !! >>> >>> the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps >>> >>> I should have 5 Watts >>> >>> Thank you for your help >>> >>> # K2 7369 - kpa 100 in progress > > From donwilh at embarqmail.com Fri Apr 10 11:22:26 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 10 Apr 2020 11:22:26 -0400 Subject: [Elecraft] KPA 500 In-Reply-To: References: Message-ID: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> Alan, That does sound like an antenna problem - balun heating, a loose or bad connection somewhere. Try that same test into a dummy load - if it shows the same behavior, then you can blame the KPA500, but if not blame the antenna system. 73, Don W3FPR On 4/10/2020 7:26 AM, Alan - G4GNX wrote: > > I have a strange fault a couple of times recently, where the SWR starts > to increase during the time of a single 'over'. I've been using the K3S > set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, > without any problem, but after I've switched the linear to Operate and > driving it to 200W, the SWR creeps up. I don't think it's an antenna > issue, but a possible heat problem with the KPA500. I watched the > temperature display on the KPA500 and initially on Standby it shows > about 38 degrees C. After transmitting at 200W the temperature slowly > rises above 60 degrees C, but the fan doesn't cut in. Does anyone know > if this is normal behavior and what temperatures I should expect to see? > I have tested the fan via the Menu function and it works as expected. > From w8fn at windstream.net Fri Apr 10 11:26:15 2020 From: w8fn at windstream.net (Randy Farmer) Date: Fri, 10 Apr 2020 11:26:15 -0400 Subject: [Elecraft] KPA 500 In-Reply-To: <000301d60f40$4113f980$c33bec80$@LNAINC.com> References: <000301d60f40$4113f980$c33bec80$@LNAINC.com> Message-ID: <1dc0ed53-79e1-8b72-72b3-84f916c54627@windstream.net> If the initial VSWR is really measuring 1.00:1 with low power, that means the detected reflected power is exceptionally low. I'm sure the algorithm used to compute SWR sets it to 1:1 if there's zero reflected power. If the load is not really perfectly flat, as the incident power is increased the detector will finally see enough reflected energy to give an indication. You have absolutely nothing to worry about in your system. 73... Randy, W8FN On 4/10/2020 9:59 AM, Lyn Norstad wrote: > At 100w on 20m, my KAT500 Utility shows an SWR of 1.00 with the KPA500 on > Standby and temp around 38?C. But as I switch the KPA to Operate and > increase the power to 300w the SWR goes up as high as 1.10. If I hold it > there (key down) long enough the KPA temp starts rising slowly. At about > 50?C I can hear the fan picking up speed. By the time I get to 60?C the fan > is at probably level 2 or 3. SWR is still at 1.10 (max). > Right or wrong, I've always assumed there is some slight heating in the > antenna system (Tuner, Balun, Lightning protection) although all components > after the tuner are rated at 5 KW. > 73 > Lyn, W?LEN From wes_n7ws at triconet.org Fri Apr 10 11:31:31 2020 From: wes_n7ws at triconet.org (Wes) Date: Fri, 10 Apr 2020 08:31:31 -0700 Subject: [Elecraft] KPA 500 In-Reply-To: <000301d60f40$4113f980$c33bec80$@LNAINC.com> References: <000301d60f40$4113f980$c33bec80$@LNAINC.com> Message-ID: I think this is a lot of worry about normal behavior. Although it's not directly discussed, some insight might be gleaned by reading through this old thread: http://elecraft.365791.n2.nabble.com/K3-SWR-Numerical-Indication-td7643839.html Wes? N7WS On 4/10/2020 6:59 AM, Lyn Norstad wrote: > At 100w on 20m, my KAT500 Utility shows an SWR of 1.00 with the KPA500 on > Standby and temp around 38?C. But as I switch the KPA to Operate and > increase the power to 300w the SWR goes up as high as 1.10. If I hold it > there (key down) long enough the KPA temp starts rising slowly. At about > 50?C I can hear the fan picking up speed. By the time I get to 60?C the fan > is at probably level 2 or 3. SWR is still at 1.10 (max). > Right or wrong, I've always assumed there is some slight heating in the > antenna system (Tuner, Balun, Lightning protection) although all components > after the tuner are rated at 5 KW. > 73 > Lyn, W?LEN > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Alan - G4GNX > Sent: Friday, April 10, 2020 6:27 AM > To: Elecraft Reflector > Subject: [Elecraft] KPA 500 > > > I have a strange fault a couple of times recently, where the SWR starts > to increase during the time of a single 'over'. I've been using the K3S > set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, > without any problem, but after I've switched the linear to Operate and > driving it to 200W, the SWR creeps up. I don't think it's an antenna > issue, but a possible heat problem with the KPA500. I watched the > temperature display on the KPA500 and initially on Standby it shows > about 38 degrees C. After transmitting at 200W the temperature slowly > rises above 60 degrees C, but the fan doesn't cut in. Does anyone know > if this is normal behavior and what temperatures I should expect to see? > I have tested the fan via the Menu function and it works as expected. > > 73, > > Alan. G4GNX > From w3tb.ted at gmail.com Fri Apr 10 11:31:57 2020 From: w3tb.ted at gmail.com (Ted Edwards W3TB) Date: Fri, 10 Apr 2020 10:31:57 -0500 Subject: [Elecraft] KPA 500 In-Reply-To: <1dc0ed53-79e1-8b72-72b3-84f916c54627@windstream.net> References: <000301d60f40$4113f980$c33bec80$@LNAINC.com> <1dc0ed53-79e1-8b72-72b3-84f916c54627@windstream.net> Message-ID: I am watching this with great interest. If running stations on CW my KPA500 shows low-mid 50sC and I have never known what it should be. Thanks everyone. On Fri, Apr 10, 2020 at 10:27 Randy Farmer wrote: > If the initial VSWR is really measuring 1.00:1 with low power, that > means the detected reflected power is exceptionally low. I'm sure the > algorithm used to compute SWR sets it to 1:1 if there's zero reflected > power. If the load is not really perfectly flat, as the incident power > is increased the detector will finally see enough reflected energy to > give an indication. You have absolutely nothing to worry about in your > system. > > 73... > Randy, W8FN > > > On 4/10/2020 9:59 AM, Lyn Norstad wrote: > > At 100w on 20m, my KAT500 Utility shows an SWR of 1.00 with the KPA500 on > > Standby and temp around 38?C. But as I switch the KPA to Operate and > > increase the power to 300w the SWR goes up as high as 1.10. If I hold it > > there (key down) long enough the KPA temp starts rising slowly. At about > > 50?C I can hear the fan picking up speed. By the time I get to 60?C the > fan > > is at probably level 2 or 3. SWR is still at 1.10 (max). > > Right or wrong, I've always assumed there is some slight heating in the > > antenna system (Tuner, Balun, Lightning protection) although all > components > > after the tuner are rated at 5 KW. > > 73 > > Lyn, W?LEN > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 idarack at gmail.com Fri Apr 10 11:45:44 2020 From: idarack at gmail.com (Irwin Darack) Date: Fri, 10 Apr 2020 11:45:44 -0400 Subject: [Elecraft] KPA 500 In-Reply-To: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> Message-ID: In my experience, coax connectors, barrel connectors, etc. are always fail points when there is a sudden increase in SWR as power is increased. They oxidize over time and sometimes just reconnecting or replacing is the first step before taking the amp apart. Irwin KD3TB On Fri, Apr 10, 2020 at 11:24 AM Don Wilhelm wrote: > Alan, > > That does sound like an antenna problem - balun heating, a loose or bad > connection somewhere. > > Try that same test into a dummy load - if it shows the same behavior, > then you can blame the KPA500, but if not blame the antenna system. > > 73, > Don W3FPR > > On 4/10/2020 7:26 AM, Alan - G4GNX wrote: > > > > I have a strange fault a couple of times recently, where the SWR starts > > to increase during the time of a single 'over'. I've been using the K3S > > set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, > > without any problem, but after I've switched the linear to Operate and > > driving it to 200W, the SWR creeps up. I don't think it's an antenna > > issue, but a possible heat problem with the KPA500. I watched the > > temperature display on the KPA500 and initially on Standby it shows > > about 38 degrees C. After transmitting at 200W the temperature slowly > > rises above 60 degrees C, but the fan doesn't cut in. Does anyone know > > if this is normal behavior and what temperatures I should expect to see? > > I have tested the fan via the Menu function and it works as expected. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to idarack at gmail.com > -- Irwin KD3TB From jim at audiosystemsgroup.com Fri Apr 10 12:26:57 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 10 Apr 2020 09:26:57 -0700 Subject: [Elecraft] KPA 500 In-Reply-To: References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> Message-ID: <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> On 4/10/2020 8:45 AM, Irwin Darack wrote: > In my experience, coax connectors, barrel connectors, etc. are always fail > points when there is a sudden increase in SWR as power is increased. They > oxidize over time and sometimes just reconnecting or replacing is the first > step before taking the amp apart. If this is happening, I'd suspect 1) the connectors have gotten wet or 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're JUNK. 73, Jim K9YC From idarack at gmail.com Fri Apr 10 12:43:06 2020 From: idarack at gmail.com (Irwin Darack) Date: Fri, 10 Apr 2020 12:43:06 -0400 Subject: [Elecraft] KPA 500 In-Reply-To: <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> Message-ID: Agreed. Many people buy the cheap ones made in China....and they fail. Irwin KD3TB On Fri, Apr 10, 2020 at 12:28 PM Jim Brown wrote: > On 4/10/2020 8:45 AM, Irwin Darack wrote: > > In my experience, coax connectors, barrel connectors, etc. are always > fail > > points when there is a sudden increase in SWR as power is increased. They > > oxidize over time and sometimes just reconnecting or replacing is the > first > > step before taking the amp apart. > > If this is happening, I'd suspect 1) the connectors have gotten wet or > 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're > JUNK. > > 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 idarack at gmail.com > -- Irwin KD3TB From rmcgraw at blomand.net Fri Apr 10 13:01:34 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 10 Apr 2020 12:01:34 -0500 Subject: [Elecraft] KPA 500 In-Reply-To: References: Message-ID: <94a89815-297c-59a8-20bb-db6b929d5519@blomand.net> My first question is "what does it do on a dummy load?"? Sounds like something related to a bad or questionable jumper cable, loose connector or bad connectors.?? I find many of today's connectors have machining tolerance errors and more so, have only "good looking" plating.? While in fact, many of these are poor quality. I find that PL-259 connectors must be mated correctly in that the body of the connector has 2 small triangle shaped protrusions from the body of the connector that must be mated with the notches on the SO-239 connector.?? Failure to do this will allow the connector to loosen under use.?? And then the shell of the connector must be tightened a bit more than finger tight.?? I keep a 4" pair of Channel Locks on the desk to help remove and tighten connectors.?? If not done so, the heating and cooling of the connector will allow it to loosen and not make good contact. Regarding the KPA500 temperature:? With my amp this morning { S/N 3519 Firmware 01.54 }? at turn on 18C,? I then held it at 500 watts carrier output into a 50 ohm dummy load.? At 50C fan on 1 speed, at 55C fan on 2 speed.?? This took about 210 seconds (3.5 minutes) from cold start to 55C on 80M into the dummy load. Other bands are less efficient and one could expect a faster temperature rise in less time.? It does vary from band to band and antenna load to load.? I did not observe any change in SWR indication, either on the amp LED display or my Bird 43 between the amp output and the dummy load. Hope this helps. 73 Bob, K4TAX On 4/10/2020 6:26 AM, Alan - G4GNX wrote: > > I have a strange fault a couple of times recently, where the SWR > starts to increase during the time of a single 'over'. I've been using > the K3S set at 100W out, via the KPA500 (in standby) and the KAT500 > tuner, without any problem, but after I've switched the linear to > Operate and driving it to 200W, the SWR creeps up. I don't think it's > an antenna issue, but a possible heat problem with the KPA500. I > watched the temperature display on the KPA500 and initially on Standby > it shows about 38 degrees C. After transmitting at 200W the > temperature slowly rises above 60 degrees C, but the fan doesn't cut > in. Does anyone know if this is normal behavior and what temperatures > I should expect to see? I have tested the fan via the Menu function > and it works as expected. > > 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 rmcgraw at blomand.net From radiok4ia at gmail.com Fri Apr 10 13:19:45 2020 From: radiok4ia at gmail.com (Buck) Date: Fri, 10 Apr 2020 13:19:45 -0400 Subject: [Elecraft] KPA 500 In-Reply-To: References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> Message-ID: A vendor at Dayton told me *all* are made in China, even the ones marked Amphenol. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/10/2020 12:43 PM, Irwin Darack wrote: > Agreed. Many people buy the cheap ones made in China....and they fail. > > Irwin KD3TB > > On Fri, Apr 10, 2020 at 12:28 PM Jim Brown > wrote: > >> On 4/10/2020 8:45 AM, Irwin Darack wrote: >>> In my experience, coax connectors, barrel connectors, etc. are always >> fail >>> points when there is a sudden increase in SWR as power is increased. They >>> oxidize over time and sometimes just reconnecting or replacing is the >> first >>> step before taking the amp apart. >> >> If this is happening, I'd suspect 1) the connectors have gotten wet or >> 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're >> JUNK. >> >> 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 idarack at gmail.com >> > > From dave at nk7z.net Fri Apr 10 13:25:04 2020 From: dave at nk7z.net (Dave Cole) Date: Fri, 10 Apr 2020 10:25:04 -0700 Subject: [Elecraft] KPA 500 In-Reply-To: References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> Message-ID: Amphenol more than likely does QC... So I would expect the majority of their connectors to be better than the possibly non QC tested connectors. I doubt most resellers QC the connectors. I am sure some do, but I would love to know which ones do. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/10/20 10:19 AM, Buck wrote: > A vendor at Dayton told me *all* are made in China, even the ones marked > Amphenol. > > k4ia, Buck > K3s# 11497 > Honor Roll? 8B DXCC > EasyWayHamBooks.com > > On 4/10/2020 12:43 PM, Irwin Darack wrote: >> Agreed. Many people buy the cheap ones made in China....and they fail. >> >> Irwin KD3TB >> >> On Fri, Apr 10, 2020 at 12:28 PM Jim Brown >> wrote: >> >>> On 4/10/2020 8:45 AM, Irwin Darack wrote: >>>> In my experience, coax connectors, barrel connectors, etc. are always >>> fail >>>> points when there is a sudden increase in SWR as power is increased. >>>> They >>>> oxidize over time and sometimes just reconnecting or replacing is the >>> first >>>> step before taking the amp apart. >>> >>> If this is happening, I'd suspect 1) the connectors have gotten wet or >>> 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're >>> JUNK. >>> >>> 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 idarack 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 rmcgraw at blomand.net Fri Apr 10 13:29:22 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 10 Apr 2020 12:29:22 -0500 Subject: [Elecraft] KPA 500 In-Reply-To: References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> Message-ID: <97818874-74ec-404a-7d6c-6145365a2624@blomand.net> I try and spend the time to recover OLD PL-259 connectors.? I have some which I've owned for 30 to 40 years.? They are ugly, tarnished, and may have phenolic insulators........but are darn good connectors.??? When I encounter a bad or connector, I usually chop the connector off with about 1" of cable remaining and toss it in a box.? Speaking of which, I'd say there are 10 to 15 pieces of RG-8 type cable in my junk cable box that I could recover today.? Worthwhile project. 73 Bob, K4TAX On 4/10/2020 12:19 PM, Buck wrote: > A vendor at Dayton told me *all* are made in China, even the ones > marked Amphenol. > > k4ia, Buck > K3s# 11497 > Honor Roll? 8B DXCC > EasyWayHamBooks.com > > On 4/10/2020 12:43 PM, Irwin Darack wrote: >> Agreed. Many people buy the cheap ones made in China....and they fail. >> >> Irwin KD3TB >> >> On Fri, Apr 10, 2020 at 12:28 PM Jim Brown >> wrote: >> >>> On 4/10/2020 8:45 AM, Irwin Darack wrote: >>>> In my experience, coax connectors, barrel connectors, etc. are always >>> fail >>>> points when there is a sudden increase in SWR as power is >>>> increased. They >>>> oxidize over time and sometimes just reconnecting or replacing is the >>> first >>>> step before taking the amp apart. >>> >>> If this is happening, I'd suspect 1) the connectors have gotten wet or >>> 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're >>> JUNK. >>> >>> 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 idarack 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 Lyn at LNAINC.com Fri Apr 10 13:45:50 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Fri, 10 Apr 2020 12:45:50 -0500 Subject: [Elecraft] KPA 500 In-Reply-To: References: <000301d60f40$4113f980$c33bec80$@LNAINC.com> <1dc0ed53-79e1-8b72-72b3-84f916c54627@windstream.net> Message-ID: <009501d60f5f$e0266250$a07326f0$@LNAINC.com> Randy ? I?m not the one with issues, it was Alan. I just offered up my experience for his comparison. 73 Lyn, W?LEN From: Ted Edwards W3TB [mailto:w3tb.ted at gmail.com] Sent: Friday, April 10, 2020 10:32 AM To: Randy Farmer Cc: Lyn at lnainc.com; elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA 500 I am watching this with great interest. If running stations on CW my KPA500 shows low-mid 50sC and I have never known what it should be. Thanks everyone. On Fri, Apr 10, 2020 at 10:27 Randy Farmer wrote: If the initial VSWR is really measuring 1.00:1 with low power, that means the detected reflected power is exceptionally low. I'm sure the algorithm used to compute SWR sets it to 1:1 if there's zero reflected power. If the load is not really perfectly flat, as the incident power is increased the detector will finally see enough reflected energy to give an indication. You have absolutely nothing to worry about in your system. 73... Randy, W8FN On 4/10/2020 9:59 AM, Lyn Norstad wrote: > At 100w on 20m, my KAT500 Utility shows an SWR of 1.00 with the KPA500 on > Standby and temp around 38?C. But as I switch the KPA to Operate and > increase the power to 300w the SWR goes up as high as 1.10. If I hold it > there (key down) long enough the KPA temp starts rising slowly. At about > 50?C I can hear the fan picking up speed. By the time I get to 60?C the fan > is at probably level 2 or 3. SWR is still at 1.10 (max). > Right or wrong, I've always assumed there is some slight heating in the > antenna system (Tuner, Balun, Lightning protection) although all components > after the tuner are rated at 5 KW. > 73 > Lyn, W?LEN ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 jim at audiosystemsgroup.com Fri Apr 10 13:52:54 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 10 Apr 2020 10:52:54 -0700 Subject: [Elecraft] KPA 500 In-Reply-To: References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> Message-ID: On 4/10/2020 10:19 AM, Buck wrote: > A vendor at Dayton told me *all* are made in China, even the ones marked > Amphenol. Um, Apple products have long been made in China. Fair-Rite has had one or more factories in China for more than a decade. "Made in China" does NOT define the product as junk. Last I heard, Amphenol is making connectors in Mexico. Having bought and installed several hundred in the last decade, the only faults I've found are a few whose screw threads were short. And you trust someone working in a trade show booth to know this? Someone selling junk connectors who disparages a competitor? 73, Jim K9YC From Lyn at LNAINC.com Fri Apr 10 13:57:04 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Fri, 10 Apr 2020 12:57:04 -0500 Subject: [Elecraft] KPA 500 References: Message-ID: <009a01d60f61$7209fd70$561df850$@LNAINC.com> Many thanks to all who offered me solutions both on and off the list. But let me clarify ... I wasn't looking for help. My system and my station are performing very well, and I love it. I was merely offering up my experience in response to Alan, G4GNX's question (below). 73 Lyn, W?LEN -----Original Message----- From: Lyn Norstad [mailto:Lyn at LNAINC.com] Sent: Friday, April 10, 2020 8:59 AM To: 'Alan - G4GNX'; 'Elecraft Reflector' Subject: RE: [Elecraft] KPA 500 At 100w on 20m, my KAT500 Utility shows an SWR of 1.00 with the KPA500 on Standby and temp around 38?C. But as I switch the KPA to Operate and increase the power to 300w the SWR goes up as high as 1.10. If I hold it there (key down) long enough the KPA temp starts rising slowly. At about 50?C I can hear the fan picking up speed. By the time I get to 60?C the fan is at probably level 2 or 3. SWR is still at 1.10 (max). Right or wrong, I've always assumed there is some slight heating in the antenna system (Tuner, Balun, Lightning protection) although all components after the tuner are rated at 5 KW. 73 Lyn, W?LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Alan - G4GNX Sent: Friday, April 10, 2020 6:27 AM To: Elecraft Reflector Subject: [Elecraft] KPA 500 I have a strange fault a couple of times recently, where the SWR starts to increase during the time of a single 'over'. I've been using the K3S set at 100W out, via the KPA500 (in standby) and the KAT500 tuner, without any problem, but after I've switched the linear to Operate and driving it to 200W, the SWR creeps up. I don't think it's an antenna issue, but a possible heat problem with the KPA500. I watched the temperature display on the KPA500 and initially on Standby it shows about 38 degrees C. After transmitting at 200W the temperature slowly rises above 60 degrees C, but the fan doesn't cut in. Does anyone know if this is normal behavior and what temperatures I should expect to see? I have tested the fan via the Menu function and it works as expected. 73, Alan. G4GNX From josh at voodoolab.com Fri Apr 10 14:01:44 2020 From: josh at voodoolab.com (Josh Fiden) Date: Fri, 10 Apr 2020 11:01:44 -0700 Subject: [Elecraft] KPA 500 In-Reply-To: References: Message-ID: That?s likely true. But if he?s saying they?re the same as Chinese brand, that?s nonsense. I use a lot of connectors from Amphenol Audio which are made in China. The difference between Amphenol & equivalent Chinese is obvious on inspection. Mating is very solid and contact plating looks much nicer. Price difference about double. I think the Amphenol connectors are very fairly priced considering the quality differences. I believe the same about their RF connectors. 73 Josh W6XU Sent from my mobile device > On Apr 10, 2020, at 10:20 AM, Buck wrote: > > ?A vendor at Dayton told me *all* are made in China, even the ones marked Amphenol. From a.durbin at msn.com Fri Apr 10 14:12:06 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 10 Apr 2020 18:12:06 +0000 Subject: [Elecraft] KPA 500 Message-ID: "After transmitting at 200W the temperature slowly rises above 60 degrees C, but the fan doesn't cut in. Does anyone know if this is normal behavior and what temperatures I should expect to see?" Nominal temperature for start of fan speed 1 is 50 deg C although my data for one test run showed several seconds at 50 deg C and fan not running. It started running just before the temperature rose to 51 deg C. 60 deg C with fan not running is not normal. 60 deg C is the nominal temperature for start of fan speed 3. 73, Andy, k3wyc From w8fn at windstream.net Fri Apr 10 14:20:52 2020 From: w8fn at windstream.net (Randy Farmer) Date: Fri, 10 Apr 2020 14:20:52 -0400 Subject: [Elecraft] Test Message-ID: <9734ed67-4fac-a4bf-0c1a-09b1f62d6a0f@windstream.net> Just a test to see if I'm getting out on the list. My last couple of emails have not appeared. 73... Randy, W8FN From f8acf56 at gmail.com Fri Apr 10 14:48:39 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Fri, 10 Apr 2020 20:48:39 +0200 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> Message-ID: good evening Don, I checked the values and solders of the capacitors mentioned they are ok on the other hand remind me of the procedure to check the frequency of the VFO so as to find 12,015 KHZ pages in the assembly manual Thanks again for your help 73 , cris F8ACF Le ven. 10 avr. 2020 ? 17:17, Don Wilhelm a ?crit : > > Christophe, > > The most common cause of a 40 meter only failure in the K2 is an > incorrect setting of the D19 secondary menu parameter. > > If you have the K60XV option installed, or if you installed the "Rework > Eliminators" when you built the K2, you must set D19 to "y". > > If you do not have either the K60XV or the Rework Eliminators, then the > D19 parameter must be set to "n". > > If the above is not applicable, you may have a problem in the 40 meter > bandpass filter. Check the capacitors in that bandpass filter - C5 and > C7 = 100pF, C4 and C8 = 820pF, C6 = 4.7pF. > Also check the VFO frequency when the K2 is set to 7100kHz, it should be > close to 12,015kHz. > > 73, > Don W3FPR > > On 4/10/2020 9:29 AM, Christophe aufacf wrote: > > hello Don, hello everyone, > > > > this morning I tested the K2 on my own. > > > > the consumption (ampere) of K2 gave me part of the solution > > > > the K2 alone in transmission consumes 0.5 amp on 40M then on the other > > 2 amp bands with a setting at 5Watts > > > > so I have no broadcast on 40M only, we can hear the relays switch ... > > > > after I admit being a bit lost to know where to start > > > > I will review the soldering of relays K1, K12, K14 in case ... > > > > could you give me advice since you know the K2 very well > > > > Thanks in advance Don > > > > 73 ,F8ACF > > > > # K2 7369 - kpa 100 in progress > > > > Le ven. 10 avr. 2020 ? 03:11, Don Wilhelm a ?crit : > >> Christophe, > >> > >> I forgot to mention, > >> Before attempting to adjust the C1 null, first pre-set R26 and R27 to > >> 43k ohms. Measure R26 from U5 pin 5 to ground and R27 at U5 pin 3 to > >> ground. > >> > >> Then go through the nulling process followed by the power setting > >> process that I outlined in my prior email. > >> > >> 73, > >> Don W3FPR > >> > >> On 4/9/2020 3:25 PM, Christophe aufacf wrote: > >>> Good morning all , > >>> > >>> Zero adjustment of SWR bridge (C1) page 48 > >>> > >>> as you see on the video , I set the K2 to 5Watts > >>> > >>> https://we.tl/t-MOz5AX1v3l > >>> > >>> I managed to adjust the SWR the K2 announces my power at 0.1 Watts !! > >>> > >>> the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps > >>> > >>> I should have 5 Watts > >>> > >>> Thank you for your help > >>> > >>> # K2 7369 - kpa 100 in progress > > > > > -- 73 , F8ACF56 From raysills3 at verizon.net Fri Apr 10 15:21:07 2020 From: raysills3 at verizon.net (Raymond Sills) Date: Fri, 10 Apr 2020 19:21:07 +0000 (UTC) Subject: [Elecraft] KPA 500 In-Reply-To: References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> Message-ID: <1168854460.3791551.1586546467377@mail.yahoo.com> That just goes to prove the point: Chinese manufacturers will build to whatever quality level you specify. ?Consider things like the iPhone and other similar devices. ?Most people don't complain about the quality of their iPhone or iPad. 73 de RayK2ULR -----Original Message----- From: Buck To: elecraft Sent: Fri, Apr 10, 2020 1:23 pm Subject: Re: [Elecraft] KPA 500 A vendor at Dayton told me *all* are made in China, even the ones marked Amphenol. k4ia, Buck K3s# 11497 Honor Roll? 8B DXCC EasyWayHamBooks.com On 4/10/2020 12:43 PM, Irwin Darack wrote: > Agreed. Many people buy the cheap ones made in China....and they fail. > > Irwin KD3TB > >>> step before taking the amp apart. >> >> If this is happening, I'd suspect 1) the connectors have gotten wet or >> 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're >> JUNK. >> >> 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 idarack 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 raysills3 at verizon.net From donwilh at embarqmail.com Fri Apr 10 15:21:40 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 10 Apr 2020 15:21:40 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> Message-ID: <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> Christophe, Tune the K2 to 7100kHz Then plug the internal counter probe into TP1 and the P6 header on the Control Board. Enter the menu to CAL FCTR and hold EDIT The frequency will be seen in the K2 display. You could alternately use an external frequency counter to read the frequency at TP1. 73, Don W3FPR On 4/10/2020 2:48 PM, Christophe aufacf wrote: > good evening Don, > > I checked the values and solders of the capacitors mentioned > they are ok > > on the other hand remind me of the procedure to check the frequency of > the VFO so as to find 12,015 KHZ pages in the assembly manual > > Thanks again for your help > > 73 , > cris F8ACF > > Le ven. 10 avr. 2020 ? 17:17, Don Wilhelm a ?crit : >> Christophe, >> >> The most common cause of a 40 meter only failure in the K2 is an >> incorrect setting of the D19 secondary menu parameter. >> >> If you have the K60XV option installed, or if you installed the "Rework >> Eliminators" when you built the K2, you must set D19 to "y". >> >> If you do not have either the K60XV or the Rework Eliminators, then the >> D19 parameter must be set to "n". >> >> If the above is not applicable, you may have a problem in the 40 meter >> bandpass filter. Check the capacitors in that bandpass filter - C5 and >> C7 = 100pF, C4 and C8 = 820pF, C6 = 4.7pF. >> Also check the VFO frequency when the K2 is set to 7100kHz, it should be >> close to 12,015kHz. >> >> 73, >> Don W3FPR >> >> On 4/10/2020 9:29 AM, Christophe aufacf wrote: >>> hello Don, hello everyone, >>> >>> this morning I tested the K2 on my own. >>> >>> the consumption (ampere) of K2 gave me part of the solution >>> >>> the K2 alone in transmission consumes 0.5 amp on 40M then on the other >>> 2 amp bands with a setting at 5Watts >>> >>> so I have no broadcast on 40M only, we can hear the relays switch ... >>> >>> after I admit being a bit lost to know where to start >>> >>> I will review the soldering of relays K1, K12, K14 in case ... >>> >>> could you give me advice since you know the K2 very well >>> >>> Thanks in advance Don >>> >>> 73 ,F8ACF >>> >>> # K2 7369 - kpa 100 in progress >>> >>> Le ven. 10 avr. 2020 ? 03:11, Don Wilhelm a ?crit : >>>> Christophe, >>>> >>>> I forgot to mention, >>>> Before attempting to adjust the C1 null, first pre-set R26 and R27 to >>>> 43k ohms. Measure R26 from U5 pin 5 to ground and R27 at U5 pin 3 to >>>> ground. >>>> >>>> Then go through the nulling process followed by the power setting >>>> process that I outlined in my prior email. >>>> >>>> 73, >>>> Don W3FPR >>>> >>>> On 4/9/2020 3:25 PM, Christophe aufacf wrote: >>>>> Good morning all , >>>>> >>>>> Zero adjustment of SWR bridge (C1) page 48 >>>>> >>>>> as you see on the video , I set the K2 to 5Watts >>>>> >>>>> https://we.tl/t-MOz5AX1v3l >>>>> >>>>> I managed to adjust the SWR the K2 announces my power at 0.1 Watts !! >>>>> >>>>> the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps >>>>> >>>>> I should have 5 Watts >>>>> >>>>> Thank you for your help >>>>> >>>>> # K2 7369 - kpa 100 in progress >>> > From rwnewbould at comcast.net Fri Apr 10 16:33:07 2020 From: rwnewbould at comcast.net (Rich) Date: Fri, 10 Apr 2020 16:33:07 -0400 Subject: [Elecraft] Wanted KPA3A Message-ID: <5a0b6501-6a7b-29f0-70f0-4bf902168a19@comcast.net> I am looking for a KPA3A is anyone has one for sale. Please contact me off list Thanks Rich From ab4iq at comcast.net Fri Apr 10 16:36:36 2020 From: ab4iq at comcast.net (Ed Pflueger) Date: Fri, 10 Apr 2020 15:36:36 -0500 Subject: [Elecraft] KPA 500 In-Reply-To: <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> Message-ID: <00df01d60f77$bb96dec0$32c49c40$@comcast.net> Well I was told by an unreliable source that the military had to have their Amphenol's manufactured in the USA but were sent to Mexico for packaging. Whether that's true or not I cannot confirm. All I know is the ones I buy are stamped in black lettering saying "Amphenol 83-1sp and below that is 74868 PL259 49190" and they can run around 4 bucks apiece depending on when and where I get them. Ed... AB4IQ -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim Brown Sent: Friday, April 10, 2020 11:27 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA 500 On 4/10/2020 8:45 AM, Irwin Darack wrote: > In my experience, coax connectors, barrel connectors, etc. are always > fail points when there is a sudden increase in SWR as power is > increased. They oxidize over time and sometimes just reconnecting or > replacing is the first step before taking the amp apart. If this is happening, I'd suspect 1) the connectors have gotten wet or 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're JUNK. 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 ab4iq at comcast.net From nv4c.ian at gmail.com Fri Apr 10 17:16:50 2020 From: nv4c.ian at gmail.com (Ian Kahn, NV4C) Date: Fri, 10 Apr 2020 17:16:50 -0400 Subject: [Elecraft] Test In-Reply-To: <9734ed67-4fac-a4bf-0c1a-09b1f62d6a0f@windstream.net> References: <9734ed67-4fac-a4bf-0c1a-09b1f62d6a0f@windstream.net> Message-ID: <8e80c5b6-f5ca-8e1e-350e-f42b480eb8e9@gmail.com> Randy, Congratulations! You passed! :-) 73 de, Ian, NV4C On 4/10/20 2:20 PM, Randy Farmer wrote: > Just a test to see if I'm getting out on the list. My last couple of > emails have not appeared. > > 73... > Randy, W8FN > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 vk4tux at bigpond.com Fri Apr 10 17:43:20 2020 From: vk4tux at bigpond.com (vk4tux) Date: Fri, 10 Apr 2020 14:43:20 -0700 (MST) Subject: [Elecraft] KX3 WSJTX Split Message-ID: <1586555000653-0.post@n2.nabble.com> I recieved this email from Japan ; "I decode you FT8 on 1840kHz that I send the JPG file to you. JAs are working split RX 1840kHz and TX 1908kHz. Please CQ JA on 1840kHz and RX 1908kHz if possible. The 160m frequency in Japan, 1810-1825kHz and 1907.5-1912.5kHz DATE Sunrise (GMT) in JA3 Apr 07: 20:34Z We hope to see you on 160m soon. TKS 73 Mas JA3FYC" I tried this, however on enable TX the VFO A and B become the same frequency on TX from wsjtx. I have cat ptt and cat control enabled, with rig split set. If I use the mic to key etc, the split remains, however something about wstx causes the VFO's to match on TX losing the split ? vk4tux -- Sent from: http://elecraft.365791.n2.nabble.com/ From va3mw at portcredit.net Fri Apr 10 17:48:17 2020 From: va3mw at portcredit.net (Michael Walker) Date: Fri, 10 Apr 2020 17:48:17 -0400 Subject: [Elecraft] KPA 500 In-Reply-To: <00df01d60f77$bb96dec0$32c49c40$@comcast.net> References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> <00df01d60f77$bb96dec0$32c49c40$@comcast.net> Message-ID: This is going to cause a big sh*t storm :) and about 900 emails before Wayne shuts it down. However, having been in RF for a bit less then most of you (only 1974), I have had connectors fail and not fail in my HF world (60Mhz or less). No Name ones have worked wonderfully for decades. Amphenol's have failed in a year. Amphenol T's in a phasing harness seem to fail the most (fell apart). But, then, who knows who makes them. What I can say is that there is, based on my personal experience, no 100% guarantee on any particular one. Install it. Visually inspect it. Make sure it is clean, dry and waterproof and a year from now, if it is outside, open it up and make sure it is still dry. It isn't eve 'you get what you pay for' any more. Next, we can have another 200 emails on how to solder a PL259. :) Mike va3mw On Fri, Apr 10, 2020 at 4:37 PM Ed Pflueger wrote: > Well I was told by an unreliable source that the military had to have their > Amphenol's manufactured in the USA but were sent to Mexico for packaging. > Whether that's true or not I cannot confirm. All I know is the ones I buy > are stamped in black lettering saying "Amphenol 83-1sp and below that is > 74868 PL259 49190" and they can run around 4 bucks apiece depending on when > and where I get them. > > Ed... AB4IQ > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Jim Brown > Sent: Friday, April 10, 2020 11:27 AM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KPA 500 > > On 4/10/2020 8:45 AM, Irwin Darack wrote: > > In my experience, coax connectors, barrel connectors, etc. are always > > fail points when there is a sudden increase in SWR as power is > > increased. They oxidize over time and sometimes just reconnecting or > > replacing is the first step before taking the amp apart. > > If this is happening, I'd suspect 1) the connectors have gotten wet or > 2) the are JUNK connectors. If they aren't labeled "Amphenol," they're > JUNK. > > 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 ab4iq 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 va3mw at portcredit.net > From rmcgraw at blomand.net Fri Apr 10 18:08:48 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 10 Apr 2020 17:08:48 -0500 Subject: [Elecraft] KX3 WSJTX Split In-Reply-To: <1586555000653-0.post@n2.nabble.com> References: <1586555000653-0.post@n2.nabble.com> Message-ID: In the F2 Setup Menu for WSJT-X change the SPLIT Function to NONE.?? Then set the Radio for SPLIT mode.? That way you can manually adjust VFO A for RX and then set VFO B for the TX frequency.??? Just keep the audio tone above 1200 Hz for TX. ? Resolves the problem 73 Bob, K4TAX On 4/10/2020 4:43 PM, vk4tux wrote: > I recieved this email from Japan ; > > "I decode you FT8 on 1840kHz that I send the JPG file to you. > JAs are working split RX 1840kHz and TX 1908kHz. > Please CQ JA on 1840kHz and RX 1908kHz if possible. > > The 160m frequency in Japan, > 1810-1825kHz and 1907.5-1912.5kHz > > DATE Sunrise (GMT) in JA3 > Apr 07: 20:34Z > > We hope to see you on 160m soon. > TKS 73 > Mas JA3FYC" > > I tried this, however on enable TX the VFO A and B become the same > frequency on TX from wsjtx. > I have cat ptt and cat control enabled, with rig split set. > > If I use the mic to key etc, the split remains, however something about wstx > causes the VFO's to match on TX losing the split ? > > vk4tux > > > > > -- > 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 rmcgraw at blomand.net > From g4gnx at g4gnx.com Fri Apr 10 18:22:07 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Fri, 10 Apr 2020 22:22:07 +0000 Subject: [Elecraft] Those dang PL259s [was: KPA 500] In-Reply-To: References: <5ad537a8-8d54-cc52-fc9c-c28d43c43af1@embarqmail.com> <3a011d6f-6f79-fcf5-2cea-6f7d72233c9b@audiosystemsgroup.com> <00df01d60f77$bb96dec0$32c49c40$@comcast.net> Message-ID: With respect, why not change the subject line. :-) As it so happens, I just had an SO239 failure today! As I was moving a cable near my HF vertical, I was suddenly presented with a cable end with a PL259 still plugged in to the SO239 which should have been in the antennas connector box. The center pin of the SO239 had a broken solder joint and the main cause of the failure was that the SO239 retaining nut had disintegrated in 3 places. The rest of the connector was still in good condition. Before anyone comments - this has nothing to do with my possible KPA500 problem, which occurs on a different antenna. 73, Alan. G4GNX ------ Original Message ------ From: "Michael Walker" To: "Elecraft at mailman.qth.net" Sent: 10/04/2020 22:48:17 Subject: Re: [Elecraft] KPA 500 >This is going to cause a big sh*t storm :) and about 900 emails before >Wayne shuts it down. > >However, having been in RF for a bit less then most of you (only 1974), I >have had connectors fail and not fail in my HF world (60Mhz or less). > >No Name ones have worked wonderfully for decades. Amphenol's have failed >in a year. Amphenol T's in a phasing harness seem to fail the most (fell >apart). But, then, who knows who makes them. > >What I can say is that there is, based on my personal experience, no 100% >guarantee on any particular one. > >Install it. Visually inspect it. Make sure it is clean, dry and >waterproof and a year from now, if it is outside, open it up and make sure >it is still dry. > >It isn't eve 'you get what you pay for' any more. > >Next, we can have another 200 emails on how to solder a PL259. :) > >Mike va3mw > > From a.durbin at msn.com Fri Apr 10 18:32:18 2020 From: a.durbin at msn.com (Andy Durbin) Date: Fri, 10 Apr 2020 22:32:18 +0000 Subject: [Elecraft] KPA 500 In-Reply-To: References: Message-ID: "60 deg C with fan not running is not normal.? 60 deg C is the nominal temperature for start of fan speed 3." The conversation was continued off "list" but there are a few points that I'd like to be in the archive -? There would appear to be two possible failure conditions.? Either the fan is not being commanded on when temperature exceeds 50 deg C or the fan is commanded on and does not run. Fan speed 1 is easily heard by anyone with normal hearing.? The fan isn't quiet. Fan operation at all speeds can be tested?by using the KPA500 menu to select FAN CTL and cycling though the speeds. Commanded fan speed can be checked by?using the KPA500 utility to send command "^FS;". It will return "^FS0x;"? where x is the fan speed setting. 73, Andy, k3wyc From vk4tux at gmail.com Fri Apr 10 18:32:08 2020 From: vk4tux at gmail.com (Adrian) Date: Sat, 11 Apr 2020 08:32:08 +1000 Subject: [Elecraft] KX3 WSJTX Split In-Reply-To: References: <1586555000653-0.post@n2.nabble.com> Message-ID: <032895a2-1aed-ce20-4ed8-62ad871b725f@gmail.com> Thanks Bob, I will try that out. regards Adrian ,? vk4tux On 11/4/20 8:08 am, Bob McGraw K4TAX wrote: > In the F2 Setup Menu for WSJT-X change the SPLIT Function to NONE.?? > Then set the Radio for SPLIT mode.? That way you can manually adjust > VFO A for RX and then set VFO B for the TX frequency.??? Just keep the > audio tone above 1200 Hz for TX. > > ? Resolves the problem > > 73 > > Bob, K4TAX > > From vk4tux at gmail.com Fri Apr 10 23:28:35 2020 From: vk4tux at gmail.com (Adrian) Date: Sat, 11 Apr 2020 13:28:35 +1000 Subject: [Elecraft] KX3 WSJTX Split In-Reply-To: <3187e784-933e-c143-90f7-9b8610e34aa8@blomand.net> References: <1586555000653-0.post@n2.nabble.com> <032895a2-1aed-ce20-4ed8-62ad871b725f@gmail.com> <3187e784-933e-c143-90f7-9b8610e34aa8@blomand.net> Message-ID: <004b01d60fb1$4abac330$e0304990$@gmail.com> Bob, I still seem to have the same issue with your suggestion, when first TX terminates the frequencies sync. See ; https://youtu.be/PMO_IlYsoe0 Thankyou Adrian , vk4tux -----Original Message----- From: Bob McGraw K4TAX [mailto:rmcgraw at blomand.net] Sent: Saturday, 11 April 2020 10:19 AM To: Adrian Subject: Re: [Elecraft] KX3 WSJTX Split Adrian: The way and reason this works, if you have the WSJT-X Split Mode set to RADIO via F2 Setup menu, then the software commands the radio to go into the split mode. The split mode in this sense is to keep the audio transmitted tone above 1500 Hz and moves VFO B in order to do so. This is not the traditional thinking and operation where one uses split when working a DX pileup. If you have the Split Mode set to NONE in the WSJT-X software, then there is no split command sent to the radio. Thus you can manually select SPLIT via the radio and this allows you to receive the frequency of choice on VFO A and then you can transmit on the frequency of choice on VFO B. Sorry I didn't make this clear originally. 73 Bob, K4TAX On 4/10/2020 5:32 PM, Adrian wrote: > Thanks Bob, I will try that out. > > > regards > > > Adrian , vk4tux > > On 11/4/20 8:08 am, Bob McGraw K4TAX wrote: >> In the F2 Setup Menu for WSJT-X change the SPLIT Function to NONE. >> Then set the Radio for SPLIT mode. That way you can manually adjust >> VFO A for RX and then set VFO B for the TX frequency. Just keep >> the audio tone above 1200 Hz for TX. >> >> Resolves the problem >> >> 73 >> >> Bob, K4TAX >> >> > From tknorris0001 at gmail.com Fri Apr 10 23:48:20 2020 From: tknorris0001 at gmail.com (Tom and Karen Norris) Date: Fri, 10 Apr 2020 21:48:20 -0600 Subject: [Elecraft] P3 TX Monitor Question Message-ID: I've been almost 2 years getting to this point of assembling the P3 Kit. The K3s I got to right away. Now that I have the P3 together and working the only problem I have is I cannot get the CW Split signal to show on the P3 display. I've gone through the Fred Cady (what a life saver! We will miss him and his way of saying things that even I can understand!) K3s/P3 manual and duplicated his TXMonMenu settings, the PEP and SWR meters work (Fred said they may not match the K3s meters and they don't) but the CW Transmit signal does not appear on the display at all, either with Split enabled or disabled. Is there another setting someplace that I'm missing or a setting that I have wrong? Any help would be greatly appreciated! Tom NB5Q From vk4tux at gmail.com Fri Apr 10 23:57:42 2020 From: vk4tux at gmail.com (Adrian) Date: Sat, 11 Apr 2020 13:57:42 +1000 Subject: [Elecraft] KX3 WSJTX Split References: <1586555000653-0.post@n2.nabble.com> <032895a2-1aed-ce20-4ed8-62ad871b725f@gmail.com> <3187e784-933e-c143-90f7-9b8610e34aa8@blomand.net> Message-ID: <002401d60fb5$5c6af920$1540eb60$@gmail.com> I also tried the 3 sec KHz lock procedure on both vfo's however that did not prevent the sync either. -----Original Message----- From: Adrian [mailto:vk4tux at gmail.com] Sent: Saturday, 11 April 2020 1:29 PM To: 'Bob McGraw K4TAX' Cc: 'elecraft at mailman.qth.net' Subject: RE: [Elecraft] KX3 WSJTX Split Bob, I still seem to have the same issue with your suggestion, when first TX terminates the frequencies sync. See ; https://youtu.be/PMO_IlYsoe0 Thankyou Adrian , vk4tux -----Original Message----- From: Bob McGraw K4TAX [mailto:rmcgraw at blomand.net] Sent: Saturday, 11 April 2020 10:19 AM To: Adrian Subject: Re: [Elecraft] KX3 WSJTX Split Adrian: The way and reason this works, if you have the WSJT-X Split Mode set to RADIO via F2 Setup menu, then the software commands the radio to go into the split mode. The split mode in this sense is to keep the audio transmitted tone above 1500 Hz and moves VFO B in order to do so. This is not the traditional thinking and operation where one uses split when working a DX pileup. If you have the Split Mode set to NONE in the WSJT-X software, then there is no split command sent to the radio. Thus you can manually select SPLIT via the radio and this allows you to receive the frequency of choice on VFO A and then you can transmit on the frequency of choice on VFO B. Sorry I didn't make this clear originally. 73 Bob, K4TAX On 4/10/2020 5:32 PM, Adrian wrote: > Thanks Bob, I will try that out. > > > regards > > > Adrian , vk4tux > > On 11/4/20 8:08 am, Bob McGraw K4TAX wrote: >> In the F2 Setup Menu for WSJT-X change the SPLIT Function to NONE. >> Then set the Radio for SPLIT mode. That way you can manually adjust >> VFO A for RX and then set VFO B for the TX frequency. Just keep >> the audio tone above 1200 Hz for TX. >> >> Resolves the problem >> >> 73 >> >> Bob, K4TAX >> >> > From n1al at sonic.net Sat Apr 11 00:38:32 2020 From: n1al at sonic.net (Alan Bloom) Date: Fri, 10 Apr 2020 22:38:32 -0600 Subject: [Elecraft] P3 TX Monitor Question In-Reply-To: References: Message-ID: <8f4d25463dda9475a41315387228f09a@sonic.net> In the TX Monitor Menu, check that "Mod En" is enabled. Alan N1AL On 2020-04-10 21:48, Tom and Karen Norris wrote: > I've been almost 2 years getting to this point of assembling the P3 Kit. > The K3s I got to right away. Now that I have the P3 together and working > the only problem I have is I cannot get the CW Split signal to show on the > P3 display. I've gone through the Fred Cady (what a life saver! We will > miss him and his way of saying things that even I can understand!) K3s/P3 > manual and duplicated his TXMonMenu settings, the PEP and SWR meters work > (Fred said they may not match the K3s meters and they don't) but the CW > Transmit signal does not appear on the display at all, either with Split > enabled or disabled. Is there another setting someplace that I'm missing or > a setting that I have wrong? Any help would be greatly appreciated! > Tom NB5Q > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 f8acf56 at gmail.com Sat Apr 11 05:24:22 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Sat, 11 Apr 2020 11:24:22 +0200 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> Message-ID: hello don the frequency to find with CAL FACT 18.159 kHz thank you in advance for your good advice 73 , Cris F8ACF Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : > > Christophe, > > Tune the K2 to 7100kHz > Then plug the internal counter probe into TP1 and the P6 header on the > Control Board. > Enter the menu to CAL FCTR and hold EDIT > The frequency will be seen in the K2 display. > > You could alternately use an external frequency counter to read the > frequency at TP1. > > 73, > Don W3FPR > > On 4/10/2020 2:48 PM, Christophe aufacf wrote: > > good evening Don, > > > > I checked the values and solders of the capacitors mentioned > > they are ok > > > > on the other hand remind me of the procedure to check the frequency of > > the VFO so as to find 12,015 KHZ pages in the assembly manual > > > > Thanks again for your help > > > > 73 , > > cris F8ACF > > > > Le ven. 10 avr. 2020 ? 17:17, Don Wilhelm a ?crit : > >> Christophe, > >> > >> The most common cause of a 40 meter only failure in the K2 is an > >> incorrect setting of the D19 secondary menu parameter. > >> > >> If you have the K60XV option installed, or if you installed the "Rework > >> Eliminators" when you built the K2, you must set D19 to "y". > >> > >> If you do not have either the K60XV or the Rework Eliminators, then the > >> D19 parameter must be set to "n". > >> > >> If the above is not applicable, you may have a problem in the 40 meter > >> bandpass filter. Check the capacitors in that bandpass filter - C5 and > >> C7 = 100pF, C4 and C8 = 820pF, C6 = 4.7pF. > >> Also check the VFO frequency when the K2 is set to 7100kHz, it should be > >> close to 12,015kHz. > >> > >> 73, > >> Don W3FPR > >> > >> On 4/10/2020 9:29 AM, Christophe aufacf wrote: > >>> hello Don, hello everyone, > >>> > >>> this morning I tested the K2 on my own. > >>> > >>> the consumption (ampere) of K2 gave me part of the solution > >>> > >>> the K2 alone in transmission consumes 0.5 amp on 40M then on the other > >>> 2 amp bands with a setting at 5Watts > >>> > >>> so I have no broadcast on 40M only, we can hear the relays switch ... > >>> > >>> after I admit being a bit lost to know where to start > >>> > >>> I will review the soldering of relays K1, K12, K14 in case ... > >>> > >>> could you give me advice since you know the K2 very well > >>> > >>> Thanks in advance Don > >>> > >>> 73 ,F8ACF > >>> > >>> # K2 7369 - kpa 100 in progress > >>> > >>> Le ven. 10 avr. 2020 ? 03:11, Don Wilhelm a ?crit : > >>>> Christophe, > >>>> > >>>> I forgot to mention, > >>>> Before attempting to adjust the C1 null, first pre-set R26 and R27 to > >>>> 43k ohms. Measure R26 from U5 pin 5 to ground and R27 at U5 pin 3 to > >>>> ground. > >>>> > >>>> Then go through the nulling process followed by the power setting > >>>> process that I outlined in my prior email. > >>>> > >>>> 73, > >>>> Don W3FPR > >>>> > >>>> On 4/9/2020 3:25 PM, Christophe aufacf wrote: > >>>>> Good morning all , > >>>>> > >>>>> Zero adjustment of SWR bridge (C1) page 48 > >>>>> > >>>>> as you see on the video , I set the K2 to 5Watts > >>>>> > >>>>> https://we.tl/t-MOz5AX1v3l > >>>>> > >>>>> I managed to adjust the SWR the K2 announces my power at 0.1 Watts !! > >>>>> > >>>>> the consumption goes from 0.32 Amps in Rx, in Tune mode 0.5 amps > >>>>> > >>>>> I should have 5 Watts > >>>>> > >>>>> Thank you for your help > >>>>> > >>>>> # K2 7369 - kpa 100 in progress > >>> > > > -- 73 , F8ACF56 From donwilh at embarqmail.com Sat Apr 11 10:52:15 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 11 Apr 2020 10:52:15 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> Message-ID: <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> Christophe, You have not yet answered 2 important questions which relate to your 40 meter operation. 1) Do you have the K60XV option installed (or do you have the Rework Eliminators installed)? 2) What is your setting of the secondary menu D19 parameter? The answers to those 2 questions is critical to what to do next in troubleshooting your problem. 73, Don W3FPR On 4/11/2020 5:24 AM, Christophe aufacf wrote: > hello don > > the frequency to find with CAL FACT 18.159 kHz > > thank you in advance for your good advice > > 73 , Cris F8ACF > > Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : >> Christophe, >> >> Tune the K2 to 7100kHz >> Then plug the internal counter probe into TP1 and the P6 header on the >> Control Board. >> Enter the menu to CAL FCTR and hold EDIT >> The frequency will be seen in the K2 display. >> >> You could alternately use an external frequency counter to read the >> frequency at TP1. >> >> 73, >> Don W3FPR >> >> On 4/10/2020 2:48 PM, Christophe aufacf wrote: >> From mikekopacki at gmail.com Sat Apr 11 11:04:23 2020 From: mikekopacki at gmail.com (NJMike) Date: Sat, 11 Apr 2020 08:04:23 -0700 (MST) Subject: [Elecraft] K2 VFO A & B Message-ID: <1586617463878-0.post@n2.nabble.com> I thought that I could have VFO A & B on different bands. Is that wrong? Thanks, Mike NJ2OM -- Sent from: http://elecraft.365791.n2.nabble.com/ From donwilh at embarqmail.com Sat Apr 11 11:12:27 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 11 Apr 2020 11:12:27 -0400 Subject: [Elecraft] K2 VFO A & B In-Reply-To: <1586617463878-0.post@n2.nabble.com> References: <1586617463878-0.post@n2.nabble.com> Message-ID: <29a45440-756b-30a9-874a-7da6de7b00ae@embarqmail.com> Mike, That will not work with the K2. You will have to move to the K3 with a SubRX to do that effectively. 73, Don W3FPR On 4/11/2020 11:04 AM, NJMike wrote: > I thought that I could have VFO A & B on different bands. Is that wrong? > > Thanks, > Mike NJ2OM > From k5rhd.73 at gmail.com Sat Apr 11 11:44:50 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Sat, 11 Apr 2020 09:44:50 -0600 Subject: [Elecraft] Downloaded DSP1 revision "02.88". Radio responded with revision "00.00" Message-ID: Hi all, I had disconnected my K3s to move some things behind the radio. When I plugged everything back in and powered back on, I got the ERR DSX. RTFM, I see that I needed to reload the firmware. I reloaded the firmware and the K3s Utility failed with Downloaded DSP1 revision "02.88". Radio responded with revision ?00.00? Turned off and back on again and I am still getting ERR DSX. Any suggested ideas? 73 K5RHD /randy Error list and results below: 09:20:48 Elecraft K3 Utility for OS X Revision 1.18.6.28 09:20:48 OS X Version 10.15.4 09:20:49 K3 MCU revision 05.67. RS-232 speed 38400 bps. 09:20:55 K3 MCU revision 05.67. RS-232 speed 38400 bps. 09:21:12 Connecting to ftp.elecraft.com. Please be patient, this takes a few seconds. 09:21:12 Connected to Elecraft server. 09:21:12 Your folder has the most recent K3 firmware files from Elecraft. 09:21:13 Ready 09:21:13 K3 MCU revision 05.67. RS-232 speed 38400 bps. 09:21:20 K3 MCU revision 05.67. RS-232 speed 38400 bps. 09:21:22 OS X Version 10.15.4 09:21:28 Sending firmware file "hmcu0567b.hex" to MCU 09:23:10 Loaded MCU firmware revision 05.67 K3 responded with revision 05.67 09:23:10 MCU firmware load is complete 09:23:10 Erasing Flash Memory 09:23:14 Sending firmware file "hfpf0126.hex" to FPF 09:24:45 FPF firmware load is complete 09:24:48 Sending firmware file "tboot8.hex" to DSP1 09:24:51 Sending firmware file "hdsp0288.hex" to DSP1 09:26:16 Sending firmware file "DTBL0014.HEX" to DSP1 09:30:39 DSP1 verification failed 09:30:47 DSP1 firmware load failed 09:30:48 K3 MCU revision 05.67. RS-232 speed 38400 bps. 09:30:48 Ready 09:31:02 K3 MCU revision 05.67. RS-232 speed 38400 bps. 09:31:05 New firmware is available for your K3 09:31:36 K3 MCU revision 05.67. RS-232 speed 38400 bps. 09:31:38 OS X Version 10.15.4 09:31:41 Sending firmware file "tboot8.hex" to DSP1 09:31:44 Sending firmware file "hdsp0288.hex" to DSP1 09:33:10 Sending firmware file "DTBL0014.HEX" to DSP1 09:37:34 DSP1 verification failed 09:43:35 DSP1 firmware load failed 09:43:36 K3 MCU revision 05.67. RS-232 speed 38400 bps. 09:43:36 Ready From mikekopacki at gmail.com Sat Apr 11 12:18:28 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Sat, 11 Apr 2020 12:18:28 -0400 Subject: [Elecraft] K2 VFO A & B In-Reply-To: <29a45440-756b-30a9-874a-7da6de7b00ae@embarqmail.com> References: <29a45440-756b-30a9-874a-7da6de7b00ae@embarqmail.com> Message-ID: <03E52F60-EA64-4C4C-BAF8-FE17293783E4@gmail.com> Thanks, all. Thanks, Mike NJ2OM > On Apr 11, 2020, at 11:12 AM, Don Wilhelm wrote: > > ?Mike, > > That will not work with the K2. You will have to move to the K3 with a SubRX to do that effectively. > > 73, > Don W3FPR > >> On 4/11/2020 11:04 AM, NJMike wrote: >> I thought that I could have VFO A & B on different bands. Is that wrong? >> Thanks, >> Mike NJ2OM From f8acf56 at gmail.com Sat Apr 11 12:38:48 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Sat, 11 Apr 2020 18:38:48 +0200 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> Message-ID: hello don I forgot to answer you no K60XV, no rework that I do not know this option, I have the NB option provided for purchase for the parameter D19 = N thank you in advance 73 , Cris F8ACF Le sam. 11 avr. 2020 ? 16:52, Don Wilhelm a ?crit : > > Christophe, > > You have not yet answered 2 important questions which relate to your 40 > meter operation. > > 1) Do you have the K60XV option installed (or do you have the Rework > Eliminators installed)? > > 2) What is your setting of the secondary menu D19 parameter? > > The answers to those 2 questions is critical to what to do next in > troubleshooting your problem. > > 73, > Don W3FPR > > On 4/11/2020 5:24 AM, Christophe aufacf wrote: > > hello don > > > > the frequency to find with CAL FACT 18.159 kHz > > > > thank you in advance for your good advice > > > > 73 , Cris F8ACF > > > > Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : > >> Christophe, > >> > >> Tune the K2 to 7100kHz > >> Then plug the internal counter probe into TP1 and the P6 header on the > >> Control Board. > >> Enter the menu to CAL FCTR and hold EDIT > >> The frequency will be seen in the K2 display. > >> > >> You could alternately use an external frequency counter to read the > >> frequency at TP1. > >> > >> 73, > >> Don W3FPR > >> > >> On 4/10/2020 2:48 PM, Christophe aufacf wrote: > >> > -- 73 , F8ACF56 From hirokik at aol.com Sat Apr 11 12:54:08 2020 From: hirokik at aol.com (HIROKI KATO) Date: Sat, 11 Apr 2020 09:54:08 -0700 Subject: [Elecraft] KX2 + WSJT-X on Raspberry Pi In-Reply-To: References: Message-ID: <8F19C6C2-47C5-408D-9327-38DCFA32F7E6@aol.com> Has anyone successfully used WSJT-X loaded in Raspberry Pi with the KX2? I?d love to learn how to do it. Any advice would be appreciated. Hiroki AH6CY From n7rcs at icloud.com Sat Apr 11 13:02:22 2020 From: n7rcs at icloud.com (James Smallwood) Date: Sat, 11 Apr 2020 17:02:22 -0000 Subject: [Elecraft] PX3 display artifact caused by Elecraft USB cable Message-ID: <03f99378-48b2-4f7d-84d2-a1f17c598abc@me.com> Hello - I recently purchased a PX3 to support my QRP contesting efforts and am really glad I did. It really helps streamline S&P during contests. However, when I plug a brand new Elecraft-provided USB cable for connecting the PX3/KX3 into my two-year old HP Pavilion PC, a 3-4db artifact appears on the PX3 display. No audio is associated with this artifact but it's distracting when viewing the PX3 display. I'm certain the cable is the source of the issue because once the USB cable is unplugged the artifact disappears. Can anyone suggest a resolution, or is this a known issue? Thanks for taking time to consider this. Jim N7RCS Palm Bay, FL From ghyoungman at gmail.com Sat Apr 11 13:17:24 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sat, 11 Apr 2020 13:17:24 -0400 Subject: [Elecraft] PX3 display artifact caused by Elecraft USB cable In-Reply-To: <03f99378-48b2-4f7d-84d2-a1f17c598abc@me.com> References: <03f99378-48b2-4f7d-84d2-a1f17c598abc@me.com> Message-ID: Are you sure this might not be an issue with electrical noise sourced from your PC? I haven't had any such issues with my PX3 using the Elecraft cable. Grant NQ5T > On Apr 11, 2020, at 1:02 PM, James Smallwood via Elecraft wrote: > > Hello - I recently purchased a PX3 to support my QRP contesting efforts and am really glad I did. It really helps streamline S&P during contests. > > > However, when I plug a brand new Elecraft-provided USB cable for connecting the PX3/KX3 into my two-year old HP Pavilion PC, a 3-4db artifact appears on the PX3 display. No audio is associated with this artifact but it's distracting when viewing the PX3 display. > > > I'm certain the cable is the source of the issue because once the USB cable is unplugged the artifact disappears. > > > From w1rm at comcast.net Sat Apr 11 13:45:47 2020 From: w1rm at comcast.net (Peter Chamalian) Date: Sat, 11 Apr 2020 13:45:47 -0400 Subject: [Elecraft] Line Out Suddenly drops Message-ID: <006601d61029$0910fc60$1b32f520$@comcast.net> The K3S works just fine on FT modes. I had my line level set for 11 but today I had to crank my line level way up to get the same output level. I've made no changes that I'm aware of. My Line out goes to the micro Keyer II Any suggestions as to why and how to fix? I'm using a micro Keyer II with software version 9.2.2 Pete, W1RM W1RM at Comcast.net From donwilh at embarqmail.com Sat Apr 11 13:48:47 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 11 Apr 2020 13:48:47 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> Message-ID: Christophe, OK, the first thing you need to do is check the value (and soldering) of C71 - it should be 120pF (marked 121). If that is correct, you need to check continuity through relays K13, K14 and K15.? The schematic shows the relays in their not-set position.? K13 and K15 must be not-set, and relay K14 must be set (opposite the position shown in the schematic). Turn the K2 on and set the band to 40 meters, then turn it off (the relays are latching) and do the continuity test with your ohmmeter. 73, Don W3FPR On 4/11/2020 12:38 PM, Christophe aufacf wrote: > hello don > > I forgot to answer you no K60XV, no rework that I do not know this > option, I have the NB option provided for purchase > > for the parameter D19 = N > > thank you in advance > > 73 , Cris F8ACF > > Le sam. 11 avr. 2020 ? 16:52, Don Wilhelm a ?crit : >> Christophe, >> >> You have not yet answered 2 important questions which relate to your 40 >> meter operation. >> >> 1) Do you have the K60XV option installed (or do you have the Rework >> Eliminators installed)? >> >> 2) What is your setting of the secondary menu D19 parameter? >> >> The answers to those 2 questions is critical to what to do next in >> troubleshooting your problem. >> >> 73, >> Don W3FPR >> >> On 4/11/2020 5:24 AM, Christophe aufacf wrote: >>> hello don >>> >>> the frequency to find with CAL FACT 18.159 kHz >>> >>> thank you in advance for your good advice >>> >>> 73 , Cris F8ACF >>> >>> Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : >>>> Christophe, >>>> >>>> Tune the K2 to 7100kHz >>>> Then plug the internal counter probe into TP1 and the P6 header on the >>>> Control Board. >>>> Enter the menu to CAL FCTR and hold EDIT >>>> The frequency will be seen in the K2 display. >>>> >>>> You could alternately use an external frequency counter to read the >>>> frequency at TP1. >>>> >>>> 73, >>>> Don W3FPR >>>> >>>> On 4/10/2020 2:48 PM, Christophe aufacf wrote: >>>> > From lists at subich.com Sat Apr 11 14:21:29 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Sat, 11 Apr 2020 14:21:29 -0400 Subject: [Elecraft] Line Out Suddenly drops In-Reply-To: <006601d61029$0910fc60$1b32f520$@comcast.net> References: <006601d61029$0910fc60$1b32f520$@comcast.net> Message-ID: Look for changes in Windows - particularly the "Sound Control Panel" Recording tab - level for "Line In (microHAM CODEC)". Windows is notorious for making arbitrary changes - particularly as part of the Windows Update process. 73, ... Joe, W4TV On 2020-04-11 1:45 PM, Peter Chamalian wrote: > The K3S works just fine on FT modes. I had my line level set for 11 but > today I had to crank my line level way up to get the same output level. > I've made no changes that I'm aware of. My Line out goes to the micro Keyer > II > > > > Any suggestions as to why and how to fix? > > > > I'm using a micro Keyer II with software version 9.2.2 > > > > > > > > Pete, W1RM > > W1RM at Comcast.net > > From w4ien at comcast.net Sat Apr 11 15:09:42 2020 From: w4ien at comcast.net (w4ien) Date: Sat, 11 Apr 2020 15:09:42 -0400 Subject: [Elecraft] K2 NB Module and Message-ID: <672c768a-9a8c-9b30-8efb-5a03f9899b53@comcast.net> I am looking for a NB module for my K2.? If anyone has one they are not using and would be willing to sell I would like to hear from them.? Please indicate price shipped to 30092. Also if anyone has a K2 they would be willing to part with I would be interested in purchasing.? Thanks in advance. -- 72/73, Robin W4IEN EM73vx G-QRP #12386 SKCC #7294 w4ien at comcast.net From donwilh at embarqmail.com Sat Apr 11 15:15:51 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 11 Apr 2020 15:15:51 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> Message-ID: <53f86080-5384-1448-d9a5-a34737186e68@embarqmail.com> Christophe, I made a mistake on the value of C71.? With no K60XV installed, the proper value is 82pF (marked either '82' or 820'). 73, Don W3FPR On 4/11/2020 12:38 PM, Christophe aufacf wrote: > hello don > > I forgot to answer you no K60XV, no rework that I do not know this > option, I have the NB option provided for purchase > > for the parameter D19 = N > > thank you in advance > > 73 , Cris F8ACF > > Le sam. 11 avr. 2020 ? 16:52, Don Wilhelm a ?crit : >> Christophe, >> >> You have not yet answered 2 important questions which relate to your 40 >> meter operation. >> >> 1) Do you have the K60XV option installed (or do you have the Rework >> Eliminators installed)? >> >> 2) What is your setting of the secondary menu D19 parameter? >> >> The answers to those 2 questions is critical to what to do next in >> troubleshooting your problem. >> >> 73, >> Don W3FPR >> >> On 4/11/2020 5:24 AM, Christophe aufacf wrote: >>> hello don >>> >>> the frequency to find with CAL FACT 18.159 kHz >>> >>> thank you in advance for your good advice >>> >>> 73 , Cris F8ACF >>> >>> Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : >>>> Christophe, >>>> >>>> Tune the K2 to 7100kHz >>>> Then plug the internal counter probe into TP1 and the P6 header on the >>>> Control Board. >>>> Enter the menu to CAL FCTR and hold EDIT >>>> The frequency will be seen in the K2 display. >>>> >>>> You could alternately use an external frequency counter to read the >>>> frequency at TP1. >>>> >>>> 73, >>>> Don W3FPR >>>> >>>> On 4/10/2020 2:48 PM, Christophe aufacf wrote: >>>> > From f8acf56 at gmail.com Sat Apr 11 16:10:21 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Sat, 11 Apr 2020 22:10:21 +0200 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: <53f86080-5384-1448-d9a5-a34737186e68@embarqmail.com> References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> <53f86080-5384-1448-d9a5-a34737186e68@embarqmail.com> Message-ID: good evening Don, visually C71 blue capacitor "82J" so correct for registration, I think? for C71 in conjunction with K13 pin 7 and K14 pin 4 on the diagram I will give you the continuities on the relays tomorrow after having started the K2 on 40M then having turned it off thanks again for your great help good night, here it is 22H local 73, Cris F8ACF Le sam. 11 avr. 2020 ? 21:15, Don Wilhelm a ?crit : > > Christophe, > > I made a mistake on the value of C71. With no K60XV installed, the > proper value is 82pF (marked either '82' or 820'). > > 73, > Don W3FPR > > On 4/11/2020 12:38 PM, Christophe aufacf wrote: > > hello don > > > > I forgot to answer you no K60XV, no rework that I do not know this > > option, I have the NB option provided for purchase > > > > for the parameter D19 = N > > > > thank you in advance > > > > 73 , Cris F8ACF > > > > Le sam. 11 avr. 2020 ? 16:52, Don Wilhelm a ?crit : > >> Christophe, > >> > >> You have not yet answered 2 important questions which relate to your 40 > >> meter operation. > >> > >> 1) Do you have the K60XV option installed (or do you have the Rework > >> Eliminators installed)? > >> > >> 2) What is your setting of the secondary menu D19 parameter? > >> > >> The answers to those 2 questions is critical to what to do next in > >> troubleshooting your problem. > >> > >> 73, > >> Don W3FPR > >> > >> On 4/11/2020 5:24 AM, Christophe aufacf wrote: > >>> hello don > >>> > >>> the frequency to find with CAL FACT 18.159 kHz > >>> > >>> thank you in advance for your good advice > >>> > >>> 73 , Cris F8ACF > >>> > >>> Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : > >>>> Christophe, > >>>> > >>>> Tune the K2 to 7100kHz > >>>> Then plug the internal counter probe into TP1 and the P6 header on the > >>>> Control Board. > >>>> Enter the menu to CAL FCTR and hold EDIT > >>>> The frequency will be seen in the K2 display. > >>>> > >>>> You could alternately use an external frequency counter to read the > >>>> frequency at TP1. > >>>> > >>>> 73, > >>>> Don W3FPR > >>>> > >>>> On 4/10/2020 2:48 PM, Christophe aufacf wrote: > >>>> > > > -- 73 , F8ACF56 From donwilh at embarqmail.com Sat Apr 11 16:59:13 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 11 Apr 2020 16:59:13 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> <53f86080-5384-1448-d9a5-a34737186e68@embarqmail.com> Message-ID: <09301ae5-f689-0293-e08b-7335ced24e59@embarqmail.com> Good evening to you as well Christophe, C71 is properly 82pF, thanks for checking. That likely means you have a relay problem with either K13, K14 or K15. You may have a similar problem on bands other than 40m. You should also check the VFO frequencies on each of the other bands. Set the K2 to the lower edge of each band, then measure and compare with the VFO Freq. chart on the K2 Schematic Key page. A list of the VFO frequencies that are far away from where they should be will give me the information needed to point to the relay at fault.? Although you may find that with the continuity check. 73, Don W3FPR On 4/11/2020 4:10 PM, Christophe aufacf wrote: > good evening Don, > > visually C71 blue capacitor "82J" so correct for registration, I think? > > for C71 in conjunction with K13 pin 7 and K14 pin 4 on the diagram > > I will give you the continuities on the relays tomorrow after having > started the K2 on 40M then having turned it off > > > thanks again for your great help > > good night, here it is 22H local > > 73, Cris F8ACF > > Le sam. 11 avr. 2020 ? 21:15, Don Wilhelm a ?crit : >> Christophe, >> >> I made a mistake on the value of C71. With no K60XV installed, the >> proper value is 82pF (marked either '82' or 820'). >> >> 73, >> Don W3FPR >> >> On 4/11/2020 12:38 PM, Christophe aufacf wrote: >>> hello don >>> >>> I forgot to answer you no K60XV, no rework that I do not know this >>> option, I have the NB option provided for purchase >>> >>> for the parameter D19 = N >>> >>> thank you in advance >>> >>> 73 , Cris F8ACF >>> >>> Le sam. 11 avr. 2020 ? 16:52, Don Wilhelm a ?crit : >>>> Christophe, >>>> >>>> You have not yet answered 2 important questions which relate to your 40 >>>> meter operation. >>>> >>>> 1) Do you have the K60XV option installed (or do you have the Rework >>>> Eliminators installed)? >>>> >>>> 2) What is your setting of the secondary menu D19 parameter? >>>> >>>> The answers to those 2 questions is critical to what to do next in >>>> troubleshooting your problem. >>>> >>>> 73, >>>> Don W3FPR >>>> >>>> On 4/11/2020 5:24 AM, Christophe aufacf wrote: >>>>> hello don >>>>> >>>>> the frequency to find with CAL FACT 18.159 kHz >>>>> >>>>> thank you in advance for your good advice >>>>> >>>>> 73 , Cris F8ACF >>>>> >>>>> Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : >>>>>> Christophe, >>>>>> >>>>>> Tune the K2 to 7100kHz >>>>>> Then plug the internal counter probe into TP1 and the P6 header on the >>>>>> Control Board. >>>>>> Enter the menu to CAL FCTR and hold EDIT >>>>>> The frequency will be seen in the K2 display. >>>>>> >>>>>> You could alternately use an external frequency counter to read the >>>>>> frequency at TP1. >>>>>> >>>>>> 73, >>>>>> Don W3FPR >>>>>> >>>>>> On 4/10/2020 2:48 PM, Christophe aufacf wrote: >>>>>> > From jstengrevics at comcast.net Sat Apr 11 17:06:02 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Sat, 11 Apr 2020 17:06:02 -0400 Subject: [Elecraft] KAT3A Question Message-ID: My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? Thanks & 73, John WA1EAZ From donwilh at embarqmail.com Sat Apr 11 17:15:53 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 11 Apr 2020 17:15:53 -0400 Subject: [Elecraft] KAT3A Question In-Reply-To: References: Message-ID: <7d0bbb71-47ab-bd5a-4996-ea4183f9372c@embarqmail.com> Why don't you tap the ATU TUNE button and see what happens? 73, Don W3FPR On 4/11/2020 5:06 PM, John Stengrevics wrote: > My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? > From nr4c at widomaker.com Sat Apr 11 17:28:01 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 11 Apr 2020 17:28:01 -0400 Subject: [Elecraft] Downloaded DSP1 revision "02.88". Radio responded with revision "00.00" In-Reply-To: References: Message-ID: <95D94407-DBCD-4998-8DF1-DFD5B55727E8@widomaker.com> I?m not sure why disconnecting the radio and reconnecting again should require a firmware reload. Did you try reloading the latest CONFIG file? Sent from my iPhone ...nr4c. bill > On Apr 11, 2020, at 11:46 AM, Randy Diddel wrote: > > ?Hi all, > > I had disconnected my K3s to move some things behind the radio. When I plugged everything back in and powered back on, I got the ERR DSX. RTFM, I see that I needed to reload the firmware. I reloaded the firmware and the K3s Utility failed with Downloaded DSP1 revision "02.88". Radio responded with revision ?00.00? Turned off and back on again and I am still getting ERR DSX. > > Any suggested ideas? > > 73 > K5RHD > /randy > > Error list and results below: > > 09:20:48 Elecraft K3 Utility for OS X Revision 1.18.6.28 > 09:20:48 OS X Version 10.15.4 > 09:20:49 K3 MCU revision 05.67. RS-232 speed 38400 bps. > 09:20:55 K3 MCU revision 05.67. RS-232 speed 38400 bps. > 09:21:12 Connecting to ftp.elecraft.com. Please be patient, this takes a few seconds. > 09:21:12 Connected to Elecraft server. > 09:21:12 Your folder has the most recent K3 firmware files from Elecraft. > 09:21:13 Ready > 09:21:13 K3 MCU revision 05.67. RS-232 speed 38400 bps. > 09:21:20 K3 MCU revision 05.67. RS-232 speed 38400 bps. > 09:21:22 OS X Version 10.15.4 > 09:21:28 Sending firmware file "hmcu0567b.hex" to MCU > 09:23:10 Loaded MCU firmware revision 05.67 > K3 responded with revision 05.67 > 09:23:10 MCU firmware load is complete > 09:23:10 Erasing Flash Memory > 09:23:14 Sending firmware file "hfpf0126.hex" to FPF > 09:24:45 FPF firmware load is complete > 09:24:48 Sending firmware file "tboot8.hex" to DSP1 > 09:24:51 Sending firmware file "hdsp0288.hex" to DSP1 > 09:26:16 Sending firmware file "DTBL0014.HEX" to DSP1 > 09:30:39 DSP1 verification failed > 09:30:47 DSP1 firmware load failed > 09:30:48 K3 MCU revision 05.67. RS-232 speed 38400 bps. > 09:30:48 Ready > 09:31:02 K3 MCU revision 05.67. RS-232 speed 38400 bps. > 09:31:05 New firmware is available for your K3 > 09:31:36 K3 MCU revision 05.67. RS-232 speed 38400 bps. > 09:31:38 OS X Version 10.15.4 > 09:31:41 Sending firmware file "tboot8.hex" to DSP1 > 09:31:44 Sending firmware file "hdsp0288.hex" to DSP1 > 09:33:10 Sending firmware file "DTBL0014.HEX" to DSP1 > 09:37:34 DSP1 verification failed > 09:43:35 DSP1 firmware load failed > 09:43:36 K3 MCU revision 05.67. RS-232 speed 38400 bps. > 09:43:36 Ready > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post From jstengrevics at comcast.net Sat Apr 11 17:30:40 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Sat, 11 Apr 2020 17:30:40 -0400 Subject: [Elecraft] KAT3A Question In-Reply-To: <7d0bbb71-47ab-bd5a-4996-ea4183f9372c@embarqmail.com> References: <7d0bbb71-47ab-bd5a-4996-ea4183f9372c@embarqmail.com> Message-ID: <52AAF98C-41FB-44FC-9861-7EFC386E5879@comcast.net> I would if I had one! ? 73, John WA1EAZ > On Apr 11, 2020, at 5:15 PM, Don Wilhelm wrote: > > Why don't you tap the ATU TUNE button and see what happens? > > 73, > Don W3FPR > > On 4/11/2020 5:06 PM, John Stengrevics wrote: >> My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? From nr4c at widomaker.com Sat Apr 11 20:05:55 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 11 Apr 2020 20:05:55 -0400 Subject: [Elecraft] PX3 display artifact caused by Elecraft USB cable In-Reply-To: <03f99378-48b2-4f7d-84d2-a1f17c598abc@me.com> References: <03f99378-48b2-4f7d-84d2-a1f17c598abc@me.com> Message-ID: <0F6352EE-B227-417D-8152-5E8F2D78CA04@widomaker.com> I seem to remember a spike a bit right of center. I recall this appears when no signal or light signals are present. Stronger signals will diminish this artifact. Sent from my iPhone ...nr4c. bill > On Apr 11, 2020, at 1:04 PM, James Smallwood via Elecraft wrote: > > ?Hello - I recently purchased a PX3 to support my QRP contesting efforts and am really glad I did. It really helps streamline S&P during contests. > > > However, when I plug a brand new Elecraft-provided USB cable for connecting the PX3/KX3 into my two-year old HP Pavilion PC, a 3-4db artifact appears on the PX3 display. No audio is associated with this artifact but it's distracting when viewing the PX3 display. > > > I'm certain the cable is the source of the issue because once the USB cable is unplugged the artifact disappears. > > > > Can anyone suggest a resolution, or is this a known issue? > > > > Thanks for taking time to consider this. > > > > Jim > > N7RCS > Palm Bay, FL > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Apr 11 20:23:28 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 11 Apr 2020 20:23:28 -0400 Subject: [Elecraft] KAT3A Question In-Reply-To: References: Message-ID: <33FF9085-7558-475C-B71E-2F1D93050967@widomaker.com> Why not try it. The KAT3(a) can tune many a strange antenna. It seems so easy to hook up the antenna and tap the button to see if it works instead of typing a query here and getting many responses. A lot of which will suggest ?Try it and see. ? Good luck. Sent from my iPhone ...nr4c. bill > On Apr 11, 2020, at 5:08 PM, John Stengrevics wrote: > > ?My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? > > Thanks & 73, > > 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 nr4c at widomaker.com From nr4c at widomaker.com Sat Apr 11 20:25:02 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 11 Apr 2020 20:25:02 -0400 Subject: [Elecraft] KAT3A Question In-Reply-To: <7d0bbb71-47ab-bd5a-4996-ea4183f9372c@embarqmail.com> References: <7d0bbb71-47ab-bd5a-4996-ea4183f9372c@embarqmail.com> Message-ID: What?d I tell you? Sent from my iPhone ...nr4c. bill > On Apr 11, 2020, at 5:17 PM, Don Wilhelm wrote: > > ?Why don't you tap the ATU TUNE button and see what happens? > > 73, > Don W3FPR > >> On 4/11/2020 5:06 PM, John Stengrevics wrote: >> My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jstengrevics at comcast.net Sat Apr 11 20:26:36 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Sat, 11 Apr 2020 20:26:36 -0400 Subject: [Elecraft] KAouT3A Question In-Reply-To: <33FF9085-7558-475C-B71E-2F1D93050967@widomaker.com> References: <33FF9085-7558-475C-B71E-2F1D93050967@widomaker.com> Message-ID: <1A8F54BA-F973-4AC9-9ABD-ABEC9402ABDF@comcast.net> If I had one, I would certainly give it a try! I am trying to decide if I should buy one. John WA1EAZ > On Apr 11, 2020, at 8:23 PM, Nr4c wrote: > > Why not try it. > > The KAT3(a) can tune many a strange antenna. > > It seems so easy to hook up the antenna and tap the button to see if it works instead of typing a query here and getting many responses. A lot of which will suggest ?Try it and see. ? > > Good luck. > > > > Sent from my iPhone > ...nr4c. bill > > >> On Apr 11, 2020, at 5:08 PM, John Stengrevics wrote: >> >> ?My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? >> >> Thanks & 73, >> >> 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 nr4c at widomaker.com From rmcgraw at blomand.net Sat Apr 11 21:08:17 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 11 Apr 2020 20:08:17 -0500 Subject: [Elecraft] KAT3A Question In-Reply-To: References: Message-ID: <4854dc00-53c5-c5fe-8ea5-4854740f7989@blomand.net> My 6M yagi shows a 5.3:1 SWR as indicated on my K3S on 28.3MHz with the ATU in Bypass mode.?? When the KAT3A ATU? in the radio resolves a match, the indicated SWR indicated is 1.1:1 on the radio. Using the same antenna but using my KAT500 ATU the best SWR resolved is 1.6:1 as indicated on the radio. Now my antenna analyzer on 28.3 MHz with my 6M yagi connected shows and SWR of 7.5:1, a Z value of 16.6 ohms, and R value of 7.3 ohms and the X value of 14.7. That same antenna on the analyzer at 50.2MHz shows the SWR at 1.2:1, Z at 39.9, R at 40.0 and Z at 0.0 My conclusion:? although the SWR values may be indicating acceptable values, the 6 meter Yagi operated on 10 meters would make a very lousy antenna.?? You'd be much better off to use an 80 meter dipole or better yet, just a 10 meter dipole. 73 Bob, K4TAX On 4/11/2020 4:06 PM, John Stengrevics wrote: > My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? > > Thanks & 73, > > 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 rmcgraw at blomand.net > From nr4c at widomaker.com Sat Apr 11 21:12:31 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 11 Apr 2020 21:12:31 -0400 Subject: [Elecraft] KAT3A Question In-Reply-To: <52AAF98C-41FB-44FC-9861-7EFC386E5879@comcast.net> References: <52AAF98C-41FB-44FC-9861-7EFC386E5879@comcast.net> Message-ID: So you?re questioning whether you should buy one? Might have made that clear in your query. Yes. No K3(S) should exist without the appropriate KAT3(a). Sent from my iPhone ...nr4c. bill > On Apr 11, 2020, at 5:32 PM, John Stengrevics wrote: > > ?I would if I had one! ? > > 73, > > John > WA1EAZ > >> On Apr 11, 2020, at 5:15 PM, Don Wilhelm wrote: >> >> Why don't you tap the ATU TUNE button and see what happens? >> >> 73, >> Don W3FPR >> >>> On 4/11/2020 5:06 PM, John Stengrevics wrote: >>> My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 john at kk9a.com Sat Apr 11 21:31:24 2020 From: john at kk9a.com (john at kk9a.com) Date: Sat, 11 Apr 2020 21:31:24 -0400 Subject: [Elecraft] KAT3A Question Message-ID: <000001d6106a$1481d880$3d858980$@com> If you're trying to figure out if you should purchase a KAT3A, you cannot buy one from Elecraft. John KK9A John Stengrevics WA1EAZ wrote: I would if I had one! ? 73, John WA1EAZ > On Apr 11, 2020, at 5:15 PM, Don Wilhelm wrote: > > Why don't you tap the ATU TUNE button and see what happens? > > 73, > Don W3FPR > > On 4/11/2020 5:06 PM, John Stengrevics wrote: >> My 6 meter antenna reads an SWR of 10:1 on 10 meters. The KAT3A specs suggest it can tune that degree of mismatch. Is it reasonable to think that the KAT3A could match my antenna well enough for 10 meters? From marklgoldberg at gmail.com Sat Apr 11 22:57:06 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Sat, 11 Apr 2020 19:57:06 -0700 Subject: [Elecraft] KAT3A Question In-Reply-To: <4854dc00-53c5-c5fe-8ea5-4854740f7989@blomand.net> References: <4854dc00-53c5-c5fe-8ea5-4854740f7989@blomand.net> Message-ID: On Sat, Apr 11, 2020 at 6:09 PM Bob McGraw K4TAX wrote: > My 6M yagi shows a 5.3:1 SWR as indicated on my K3S on 28.3MHz with the > ATU in Bypass mode. When the KAT3A ATU in the radio resolves a match, > the indicated SWR indicated is 1.1:1 on the radio. > > Using the same antenna but using my KAT500 ATU the best SWR resolved is > 1.6:1 as indicated on the radio. > > Now my antenna analyzer on 28.3 MHz with my 6M yagi connected shows and > SWR of 7.5:1, a Z value of 16.6 ohms, and R value of 7.3 ohms and the X > value of 14.7. > > That same antenna on the analyzer at 50.2MHz shows the SWR at 1.2:1, Z > at 39.9, R at 40.0 and Z at 0.0 > > My conclusion: although the SWR values may be indicating acceptable > values, the 6 meter Yagi operated on 10 meters would make a very lousy > antenna. You'd be much better off to use an 80 meter dipole or better > yet, just a 10 meter dipole. > In addition, a Yagi operated at a non resonant frequency, especially below it's design frequency is likely to not act like a Yagi at all. The pattern depends on the elements being close to resonance. More wire / aluminum is usually better. A physically short antenna may be tunable but it won't be efficient. Much of the power will be dissipated in the tuner or balun or feedline as losses. A physically short antenna + tuner + high power often results in smoke somewhere! I use a 300 foot horizontal look and it can be tuned from 80 to 6 meters. Who knows what the pattern is at high frequencies but I can make contacts! So, a tuner is a good idea, but it won't solve every problem. Because it is easy to understand, Hams use SWR, but in actuality the same number for SWR results from an infinite number of impedances ( R and X), not all of which can be handled by the tuner the same way. ARRL has done some comparison testing with tuners with various impedances, I believe. I don't know if the losses have been measured, but you can take two different impedances that result in an SWR of 4:1 and only some can be tuned, depending on the tuner. 73, Mark W7MLG From scott.small at gmail.com Sat Apr 11 23:14:29 2020 From: scott.small at gmail.com (Tox) Date: Sat, 11 Apr 2020 20:14:29 -0700 Subject: [Elecraft] KAT3A Question In-Reply-To: References: <4854dc00-53c5-c5fe-8ea5-4854740f7989@blomand.net> Message-ID: Ft-991 (pre-A samples at least) has trouble tuning some multitrap verticals for all the expected bands, this may explain why On Sat, Apr 11, 2020, 7:57 PM Mark Goldberg wrote: > On Sat, Apr 11, 2020 at 6:09 PM Bob McGraw K4TAX > wrote: > > > My 6M yagi shows a 5.3:1 SWR as indicated on my K3S on 28.3MHz with the > > ATU in Bypass mode. When the KAT3A ATU in the radio resolves a match, > > the indicated SWR indicated is 1.1:1 on the radio. > > > > Using the same antenna but using my KAT500 ATU the best SWR resolved is > > 1.6:1 as indicated on the radio. > > > > Now my antenna analyzer on 28.3 MHz with my 6M yagi connected shows and > > SWR of 7.5:1, a Z value of 16.6 ohms, and R value of 7.3 ohms and the X > > value of 14.7. > > > > That same antenna on the analyzer at 50.2MHz shows the SWR at 1.2:1, Z > > at 39.9, R at 40.0 and Z at 0.0 > > > > My conclusion: although the SWR values may be indicating acceptable > > values, the 6 meter Yagi operated on 10 meters would make a very lousy > > antenna. You'd be much better off to use an 80 meter dipole or better > > yet, just a 10 meter dipole. > > > > In addition, a Yagi operated at a non resonant frequency, especially below > it's design frequency is likely to not act like a Yagi at all. The pattern > depends on the elements being close to resonance. More wire / aluminum is > usually better. A physically short antenna may be tunable but it won't be > efficient. Much of the power will be dissipated in the tuner or balun or > feedline as losses. A physically short antenna + tuner + high power often > results in smoke somewhere! I use a 300 foot horizontal look and it can be > tuned from 80 to 6 meters. Who knows what the pattern is at high > frequencies but I can make contacts! > > So, a tuner is a good idea, but it won't solve every problem. Because it is > easy to understand, Hams use SWR, but in actuality the same number for SWR > results from an infinite number of impedances ( R and X), not all of which > can be handled by the tuner the same way. ARRL has done some comparison > testing with tuners with various impedances, I believe. I don't know if the > losses have been measured, but you can take two different impedances that > result in an SWR of 4:1 and only some can be tuned, depending on the tuner. > > 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 scott.small at gmail.com > From kevinr at coho.net Sun Apr 12 00:23:26 2020 From: kevinr at coho.net (kevinr) Date: Sat, 11 Apr 2020 21:23:26 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <840dd76a-b58f-d97b-b7ae-c150a378dfec@coho.net> Good Evening, ?? Spring has finally touched my front yard.? Trillium and daffodils blooming at the same time is odd though, normally they are weeks apart.? I found a number of elk tracks but no defined trails.? They seem to be wandering around finding the easy paths. Lots of very large mushrooms too.? About eight inches in diameter and still growing.? Each resembles those you can buy in the store; eating them is NOT recommended.? However, rodents love them. ?? The sun is uncluttered with sunspots.? Solar flux remains where it has been for over a year.? The auroral oval is thin so we're not receiving many ions.? I expect the bands to be fairly quiet with mild QSB.? Tomorrow we can test my assumptions while exciting the ionosphere from the inside. 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 jim at audiosystemsgroup.com Sun Apr 12 02:55:43 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sat, 11 Apr 2020 23:55:43 -0700 Subject: [Elecraft] KAT3A Question In-Reply-To: References: <4854dc00-53c5-c5fe-8ea5-4854740f7989@blomand.net> Message-ID: On 4/11/2020 8:14 PM, Tox wrote: > Ft-991 (pre-A samples at least) has trouble tuning some multitrap verticals > for all the expected bands, this may explain why The things we call "antenna tuners" do nothing at all to the antenna. Rather, they are an adjustable network that we adjust so that the rig (or power amp) supplies power to the transmission line, and so that the output stage is "happy." In this context, "happy" means that the output stage is operating in a "safe" region (not likely to overheat or fail), and that it is producing minimum distortion. If the antenna is poorly matched to the line, there are standing waves, increasing the loss in the line, so less of that power gets to the antenna. The fact that a radio doesn't work with a multi-band vertical says more far about the multi-band vertical than it does about the radio. Perhaps it was assembled badly, was damaged in some way, lacked radials (if a type that needs radials), or was installed in proximity to a vertical metallic object. Or the feedline was defective. On 4/11/2020 7:57 PM, Mark Goldberg wrote: > In addition, a Yagi operated at a non resonant frequency, especially below > it's design frequency is likely to not act like a Yagi at all. The pattern > depends on the elements being close to resonance. Right. ALL antenna arrays (that is, those with multiple elements) only work at their design frequency, or a narrow band around that frequency. That's because they work on the basis of their electrical length in degrees, and the electrical distance in degrees between the elements. So that 10M Yagi is nothing more than a non-resonant dipole with a random bunch of aluminum around it. SWR is DEFINED by the match between the antenna and the line, and that SWR causes additional loss. This loss causes the SWR to get smaller along the line moving in the direction of the transmitter. When an SWR bridge in the shack reads 5:1, the SWR at the antenna could be 10:1, depending on the loss characteristics of the line and its length)! So the antenna tuner does nothing to change the SWR or the antenna. 73, Jim K9YC From scott.small at gmail.com Sun Apr 12 04:04:53 2020 From: scott.small at gmail.com (Tox) Date: Sun, 12 Apr 2020 01:04:53 -0700 Subject: [Elecraft] KAT3A Question In-Reply-To: References: <4854dc00-53c5-c5fe-8ea5-4854740f7989@blomand.net> Message-ID: Specifically, multiple samples of ft-991 owned by different operators would "autotune" optimally poorly ( resulting in a 99:1 on a 6-10:1 feed?) against multiple samples of, iirc, 4BTV. I suspect software bugs may play a part as well. *Shrug* I haven't operated my 991 since, instead use my kx3 as my shack radio until my k4 arrives. Returned the 4btv to the gentleman that was kind enough to loan it to me, have a 6btv(?) awaiting erection but have been getting by with a fan dipole, reducing urgency. Have no idea what the other owner I was talking to at the Yaesu booth did about his. AD6YT On Sat, Apr 11, 2020, 11:56 PM Jim Brown wrote: > On 4/11/2020 8:14 PM, Tox wrote: > > Ft-991 (pre-A samples at least) has trouble tuning some multitrap > verticals > > for all the expected bands, this may explain why > > The things we call "antenna tuners" do nothing at all to the antenna. > Rather, they are an adjustable network that we adjust so that the rig > (or power amp) supplies power to the transmission line, and so that the > output stage is "happy." In this context, "happy" means that the output > stage is operating in a "safe" region (not likely to overheat or fail), > and that it is producing minimum distortion. > > If the antenna is poorly matched to the line, there are standing waves, > increasing the loss in the line, so less of that power gets to the antenna. > > The fact that a radio doesn't work with a multi-band vertical says more > far about the multi-band vertical than it does about the radio. Perhaps > it was assembled badly, was damaged in some way, lacked radials (if a > type that needs radials), or was installed in proximity to a vertical > metallic object. Or the feedline was defective. > > On 4/11/2020 7:57 PM, Mark Goldberg wrote: > > In addition, a Yagi operated at a non resonant frequency, especially > below > > it's design frequency is likely to not act like a Yagi at all. The > pattern > > depends on the elements being close to resonance. > > Right. ALL antenna arrays (that is, those with multiple elements) only > work at their design frequency, or a narrow band around that frequency. > That's because they work on the basis of their electrical length in > degrees, and the electrical distance in degrees between the elements. So > that 10M Yagi is nothing more than a non-resonant dipole with a random > bunch of aluminum around it. > > SWR is DEFINED by the match between the antenna and the line, and that > SWR causes additional loss. This loss causes the SWR to get smaller > along the line moving in the direction of the transmitter. When an SWR > bridge in the shack reads 5:1, the SWR at the antenna could be 10:1, > depending on the loss characteristics of the line and its length)! > > So the antenna tuner does nothing to change the SWR or the antenna. > > 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 scott.small at gmail.com > From adamgoler at gmail.com Sun Apr 12 05:23:51 2020 From: adamgoler at gmail.com (Adam Goler) Date: Sun, 12 Apr 2020 05:23:51 -0400 Subject: [Elecraft] KX2 + WSJT-X on Raspberry Pi (HIROKI KATO) In-Reply-To: References: Message-ID: Hiroki, I have not done this, but it looks like this link might be helpful in your quest... https://dl1gkk.com/small-portable-digital-amateur-radio-station/ 73, Adam KM6PHD > Message: 6 > Date: Sat, 11 Apr 2020 09:54:08 -0700 > From: HIROKI KATO > To: "elecraft at mailman.qth.net" > Subject: [Elecraft] KX2 + WSJT-X on Raspberry Pi > Message-ID: <8F19C6C2-47C5-408D-9327-38DCFA32F7E6 at aol.com> > Content-Type: text/plain; charset=utf-8 > > Has anyone successfully used WSJT-X loaded in Raspberry Pi with the KX2? > I?d love to learn how to do it. Any advice would be appreciated. > Hiroki AH6CY > > -- Adam Goler, PhD Cell: (425) 985 8700 "Fear is the mind killer." From f8acf56 at gmail.com Sun Apr 12 10:16:11 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Sun, 12 Apr 2020 16:16:11 +0200 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: <09301ae5-f689-0293-e08b-7335ced24e59@embarqmail.com> References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> <53f86080-5384-1448-d9a5-a34737186e68@embarqmail.com> <09301ae5-f689-0293-e08b-7335ced24e59@embarqmail.com> Message-ID: hello Don, continuity measurements from C71 ==> K14 PIN 3 & 4 K12 PIN 7 & 8; K15 PIN 2 for measuring band frequencies 80M, 30M, 20M; 17; 12 and 10M on 3600, 10.140, 14.100, 18.100, 21.100, 28.100 will that be correct? as I did on 40M 73 , Cris F8ACF Happy Easter Le sam. 11 avr. 2020 ? 22:59, Don Wilhelm a ?crit : > > Good evening to you as well Christophe, > > C71 is properly 82pF, thanks for checking. > That likely means you have a relay problem with either K13, K14 or K15. > You may have a similar problem on bands other than 40m. > > You should also check the VFO frequencies on each of the other bands. > Set the K2 to the lower edge of each band, then measure and compare with > the VFO Freq. chart on the K2 Schematic Key page. > > A list of the VFO frequencies that are far away from where they should > be will give me the information needed to point to the relay at fault. > Although you may find that with the continuity check. > > 73, > Don W3FPR > > On 4/11/2020 4:10 PM, Christophe aufacf wrote: > > good evening Don, > > > > visually C71 blue capacitor "82J" so correct for registration, I think? > > > > for C71 in conjunction with K13 pin 7 and K14 pin 4 on the diagram > > > > I will give you the continuities on the relays tomorrow after having > > started the K2 on 40M then having turned it off > > > > > > thanks again for your great help > > > > good night, here it is 22H local > > > > 73, Cris F8ACF > > > > Le sam. 11 avr. 2020 ? 21:15, Don Wilhelm a ?crit : > >> Christophe, > >> > >> I made a mistake on the value of C71. With no K60XV installed, the > >> proper value is 82pF (marked either '82' or 820'). > >> > >> 73, > >> Don W3FPR > >> > >> On 4/11/2020 12:38 PM, Christophe aufacf wrote: > >>> hello don > >>> > >>> I forgot to answer you no K60XV, no rework that I do not know this > >>> option, I have the NB option provided for purchase > >>> > >>> for the parameter D19 = N > >>> > >>> thank you in advance > >>> > >>> 73 , Cris F8ACF > >>> > >>> Le sam. 11 avr. 2020 ? 16:52, Don Wilhelm a ?crit : > >>>> Christophe, > >>>> > >>>> You have not yet answered 2 important questions which relate to your 40 > >>>> meter operation. > >>>> > >>>> 1) Do you have the K60XV option installed (or do you have the Rework > >>>> Eliminators installed)? > >>>> > >>>> 2) What is your setting of the secondary menu D19 parameter? > >>>> > >>>> The answers to those 2 questions is critical to what to do next in > >>>> troubleshooting your problem. > >>>> > >>>> 73, > >>>> Don W3FPR > >>>> > >>>> On 4/11/2020 5:24 AM, Christophe aufacf wrote: > >>>>> hello don > >>>>> > >>>>> the frequency to find with CAL FACT 18.159 kHz > >>>>> > >>>>> thank you in advance for your good advice > >>>>> > >>>>> 73 , Cris F8ACF > >>>>> > >>>>> Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : > >>>>>> Christophe, > >>>>>> > >>>>>> Tune the K2 to 7100kHz > >>>>>> Then plug the internal counter probe into TP1 and the P6 header on the > >>>>>> Control Board. > >>>>>> Enter the menu to CAL FCTR and hold EDIT > >>>>>> The frequency will be seen in the K2 display. > >>>>>> > >>>>>> You could alternately use an external frequency counter to read the > >>>>>> frequency at TP1. > >>>>>> > >>>>>> 73, > >>>>>> Don W3FPR > >>>>>> > >>>>>> On 4/10/2020 2:48 PM, Christophe aufacf wrote: > >>>>>> > > > -- 73 , F8ACF56 From wes_n7ws at triconet.org Sun Apr 12 10:40:08 2020 From: wes_n7ws at triconet.org (Wes) Date: Sun, 12 Apr 2020 07:40:08 -0700 Subject: [Elecraft] KAT3A Question In-Reply-To: References: <52AAF98C-41FB-44FC-9861-7EFC386E5879@comcast.net> Message-ID: <9d454b6e-15c0-3460-0b69-5f1c554bf957@triconet.org> Really?? Mine doesn't and it doesn't have a 2nd RX either, something that everyone "knows" you have to have to work DX. Wes? N7WS DXCC Honor Roll and 9-band DXCC (All from the same city) On 4/11/2020 6:12 PM, Nr4c wrote: > > Yes. No K3(S) should exist without the appropriate KAT3(a). > From john at kk9a.com Sun Apr 12 11:17:14 2020 From: john at kk9a.com (john at kk9a.com) Date: Sun, 12 Apr 2020 11:17:14 -0400 Subject: [Elecraft] KAT3A Question Message-ID: <000001d610dd$72f2cd20$58d86760$@com> It was a $400 option and unnecessary with resonant antennas. I have three Elecraft K3S's and none of them have KAT3A tuners. John KK9A Nr4c wrote No K3(S) should exist without the appropriate KAT3(a). Sent from my iPhone ...nr4c. bill From kc9ee at yahoo.com Sun Apr 12 12:04:45 2020 From: kc9ee at yahoo.com (Gary Hunt) Date: Sun, 12 Apr 2020 16:04:45 +0000 (UTC) Subject: [Elecraft] [microHAM] Line Out Suddenly drops In-Reply-To: <006601d61029$0910fc60$1b32f520$@comcast.net> References: <006601d61029$0910fc60$1b32f520$@comcast.net> Message-ID: <1729758759.2958624.1586707485129@mail.yahoo.com> There has to be another application changing the actual Window's audio levels.? Document what those levels are in Sound Devices Manager when all is working correctly vs when not.Also, I'm not sure what the upside is for adding the MicrokeyerII to the equation. The K3S is capable of FT8 with no additional interface. That was why I updated my K3 after a lightning strike took out the MicroKeyerII. 73? Gary KC9EE? Sent from Yahoo Mail on Android On Sat, Apr 11, 2020 at 1:16 PM, Pete W1RM wrote: The K3S works just fine on FT modes.? I had my line level set for 11 but today I had to crank my line level way up to get the same output level. I've made no changes that I'm aware of.? My Line out goes to the micro Keyer II Any suggestions as to why and how to fix? I'm using a micro Keyer II with software version 9.2.2 Pete, W1RM W1RM at Comcast.net -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#19356): https://groups.io/g/microHAM/message/19356 Mute This Topic: https://groups.io/mt/72950102/383090 Group Owner: microHAM+owner at groups.io Unsubscribe: https://groups.io/g/microHAM/unsub [kc9ee at yahoo.com] -=-=-=-=-=-=-=-=-=-=-=- From nr4c at widomaker.com Sun Apr 12 12:10:51 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 12 Apr 2020 12:10:51 -0400 Subject: [Elecraft] KAT3A Question In-Reply-To: <000001d610dd$72f2cd20$58d86760$@com> References: <000001d610dd$72f2cd20$58d86760$@com> Message-ID: For station use at home I could get by without. But my radios are used for many club/portable events and antennas are often not optimal. So a ATU is helpful. And I figure if I ever want to sell it it might bring either higher price or quicker sale. Sent from my iPhone ...nr4c. bill > On Apr 12, 2020, at 11:19 AM, john at kk9a.com wrote: > > ?It was a $400 option and unnecessary with resonant antennas. I have three > Elecraft K3S's and none of them have KAT3A tuners. > > > John KK9A > > > Nr4c wrote > > No K3(S) should exist without the appropriate KAT3(a). > > > > 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 nr4c at widomaker.com From f8acf56 at gmail.com Sun Apr 12 12:15:59 2020 From: f8acf56 at gmail.com (Christophe aufacf) Date: Sun, 12 Apr 2020 18:15:59 +0200 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> <53f86080-5384-1448-d9a5-a34737186e68@embarqmail.com> <09301ae5-f689-0293-e08b-7335ced24e59@embarqmail.com> Message-ID: hello Don, the measures find 3.600 => 18161 7.100 => 18163 10.120 => 15034 14.100 => 19014 18.110 => 23024 21.100 => 16185 24.930 => 20016 28.200 => 23285 I put a link to a video : https://we.tl/t-rFR61aZsYH look what happens when I go from 20 to 30M with HI CUR power for a fraction of a second, 14 W instead of 5W if I reconcile again the step of HICUR and I have my 5W, surprising! ... may be related to my breakdown I think? thanks again for your help Le dim. 12 avr. 2020 ? 16:16, Christophe aufacf a ?crit : > > hello Don, > > continuity measurements from C71 ==> K14 PIN 3 & 4 > > K12 PIN 7 & 8; K15 PIN 2 > > for measuring band frequencies > > 80M, 30M, 20M; 17; 12 and 10M > > on 3600, 10.140, 14.100, 18.100, 21.100, 28.100 > > will that be correct? > > as I did on 40M > > 73 , Cris F8ACF Happy Easter > > Le sam. 11 avr. 2020 ? 22:59, Don Wilhelm a ?crit : > > > > Good evening to you as well Christophe, > > > > C71 is properly 82pF, thanks for checking. > > That likely means you have a relay problem with either K13, K14 or K15. > > You may have a similar problem on bands other than 40m. > > > > You should also check the VFO frequencies on each of the other bands. > > Set the K2 to the lower edge of each band, then measure and compare with > > the VFO Freq. chart on the K2 Schematic Key page. > > > > A list of the VFO frequencies that are far away from where they should > > be will give me the information needed to point to the relay at fault. > > Although you may find that with the continuity check. > > > > 73, > > Don W3FPR > > > > On 4/11/2020 4:10 PM, Christophe aufacf wrote: > > > good evening Don, > > > > > > visually C71 blue capacitor "82J" so correct for registration, I think? > > > > > > for C71 in conjunction with K13 pin 7 and K14 pin 4 on the diagram > > > > > > I will give you the continuities on the relays tomorrow after having > > > started the K2 on 40M then having turned it off > > > > > > > > > thanks again for your great help > > > > > > good night, here it is 22H local > > > > > > 73, Cris F8ACF > > > > > > Le sam. 11 avr. 2020 ? 21:15, Don Wilhelm a ?crit : > > >> Christophe, > > >> > > >> I made a mistake on the value of C71. With no K60XV installed, the > > >> proper value is 82pF (marked either '82' or 820'). > > >> > > >> 73, > > >> Don W3FPR > > >> > > >> On 4/11/2020 12:38 PM, Christophe aufacf wrote: > > >>> hello don > > >>> > > >>> I forgot to answer you no K60XV, no rework that I do not know this > > >>> option, I have the NB option provided for purchase > > >>> > > >>> for the parameter D19 = N > > >>> > > >>> thank you in advance > > >>> > > >>> 73 , Cris F8ACF > > >>> > > >>> Le sam. 11 avr. 2020 ? 16:52, Don Wilhelm a ?crit : > > >>>> Christophe, > > >>>> > > >>>> You have not yet answered 2 important questions which relate to your 40 > > >>>> meter operation. > > >>>> > > >>>> 1) Do you have the K60XV option installed (or do you have the Rework > > >>>> Eliminators installed)? > > >>>> > > >>>> 2) What is your setting of the secondary menu D19 parameter? > > >>>> > > >>>> The answers to those 2 questions is critical to what to do next in > > >>>> troubleshooting your problem. > > >>>> > > >>>> 73, > > >>>> Don W3FPR > > >>>> > > >>>> On 4/11/2020 5:24 AM, Christophe aufacf wrote: > > >>>>> hello don > > >>>>> > > >>>>> the frequency to find with CAL FACT 18.159 kHz > > >>>>> > > >>>>> thank you in advance for your good advice > > >>>>> > > >>>>> 73 , Cris F8ACF > > >>>>> > > >>>>> Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : > > >>>>>> Christophe, > > >>>>>> > > >>>>>> Tune the K2 to 7100kHz > > >>>>>> Then plug the internal counter probe into TP1 and the P6 header on the > > >>>>>> Control Board. > > >>>>>> Enter the menu to CAL FCTR and hold EDIT > > >>>>>> The frequency will be seen in the K2 display. > > >>>>>> > > >>>>>> You could alternately use an external frequency counter to read the > > >>>>>> frequency at TP1. > > >>>>>> > > >>>>>> 73, > > >>>>>> Don W3FPR > > >>>>>> > > >>>>>> On 4/10/2020 2:48 PM, Christophe aufacf wrote: > > >>>>>> > > > > > > > > -- > 73 , F8ACF56 -- 73 , F8ACF56 From donwilh at embarqmail.com Sun Apr 12 12:19:02 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 12 Apr 2020 12:19:02 -0400 Subject: [Elecraft] setting KPA 100 page 48 problem In-Reply-To: References: <51b450e3-1706-a2ba-14c5-0d876d924f74@embarqmail.com> <3d5f9022-53e7-e705-7b38-745e19f17454@embarqmail.com> <49d4dd54-292e-04ab-8599-dc239332ecea@embarqmail.com> <53f86080-5384-1448-d9a5-a34737186e68@embarqmail.com> <09301ae5-f689-0293-e08b-7335ced24e59@embarqmail.com> Message-ID: <80419f3c-e4fe-a5f7-9978-adfd52c1b95f@embarqmail.com> Christophe, K13 and K15 should have continuity between pins 2 and 3 also pins 8 and 9 You should also determine that there is an open between pins 3 and 4 also 7 and 8. K14 should have continuity between pins 3 and 4 also 7 and 8.? It should b open between pins 2 and 3 also between pins 8 and 9. For comparison with the VFO chart on the schematic key, use the low end of each band - 3500, 7000, 10,000, 14,000, 18,000, 21000, 24,890, and 28,000 kHz. 73, Don W3FPR On 4/12/2020 10:16 AM, Christophe aufacf wrote: > hello Don, > > continuity measurements from C71 ==> K14 PIN 3 & 4 > > K12 PIN 7 & 8; K15 PIN 2 > > for measuring band frequencies > > 80M, 30M, 20M; 17; 12 and 10M > > on 3600, 10.140, 14.100, 18.100, 21.100, 28.100 > > will that be correct? > > as I did on 40M > > 73 , Cris F8ACF Happy Easter > > Le sam. 11 avr. 2020 ? 22:59, Don Wilhelm a ?crit : >> Good evening to you as well Christophe, >> >> C71 is properly 82pF, thanks for checking. >> That likely means you have a relay problem with either K13, K14 or K15. >> You may have a similar problem on bands other than 40m. >> >> You should also check the VFO frequencies on each of the other bands. >> Set the K2 to the lower edge of each band, then measure and compare with >> the VFO Freq. chart on the K2 Schematic Key page. >> >> A list of the VFO frequencies that are far away from where they should >> be will give me the information needed to point to the relay at fault. >> Although you may find that with the continuity check. >> >> 73, >> Don W3FPR >> >> On 4/11/2020 4:10 PM, Christophe aufacf wrote: >>> good evening Don, >>> >>> visually C71 blue capacitor "82J" so correct for registration, I think? >>> >>> for C71 in conjunction with K13 pin 7 and K14 pin 4 on the diagram >>> >>> I will give you the continuities on the relays tomorrow after having >>> started the K2 on 40M then having turned it off >>> >>> >>> thanks again for your great help >>> >>> good night, here it is 22H local >>> >>> 73, Cris F8ACF >>> >>> Le sam. 11 avr. 2020 ? 21:15, Don Wilhelm a ?crit : >>>> Christophe, >>>> >>>> I made a mistake on the value of C71. With no K60XV installed, the >>>> proper value is 82pF (marked either '82' or 820'). >>>> >>>> 73, >>>> Don W3FPR >>>> >>>> On 4/11/2020 12:38 PM, Christophe aufacf wrote: >>>>> hello don >>>>> >>>>> I forgot to answer you no K60XV, no rework that I do not know this >>>>> option, I have the NB option provided for purchase >>>>> >>>>> for the parameter D19 = N >>>>> >>>>> thank you in advance >>>>> >>>>> 73 , Cris F8ACF >>>>> >>>>> Le sam. 11 avr. 2020 ? 16:52, Don Wilhelm a ?crit : >>>>>> Christophe, >>>>>> >>>>>> You have not yet answered 2 important questions which relate to your 40 >>>>>> meter operation. >>>>>> >>>>>> 1) Do you have the K60XV option installed (or do you have the Rework >>>>>> Eliminators installed)? >>>>>> >>>>>> 2) What is your setting of the secondary menu D19 parameter? >>>>>> >>>>>> The answers to those 2 questions is critical to what to do next in >>>>>> troubleshooting your problem. >>>>>> >>>>>> 73, >>>>>> Don W3FPR >>>>>> >>>>>> On 4/11/2020 5:24 AM, Christophe aufacf wrote: >>>>>>> hello don >>>>>>> >>>>>>> the frequency to find with CAL FACT 18.159 kHz >>>>>>> >>>>>>> thank you in advance for your good advice >>>>>>> >>>>>>> 73 , Cris F8ACF >>>>>>> >>>>>>> Le ven. 10 avr. 2020 ? 21:21, Don Wilhelm a ?crit : >>>>>>>> Christophe, >>>>>>>> >>>>>>>> Tune the K2 to 7100kHz >>>>>>>> Then plug the internal counter probe into TP1 and the P6 header on the >>>>>>>> Control Board. >>>>>>>> Enter the menu to CAL FCTR and hold EDIT >>>>>>>> The frequency will be seen in the K2 display. >>>>>>>> >>>>>>>> You could alternately use an external frequency counter to read the >>>>>>>> frequency at TP1. >>>>>>>> >>>>>>>> 73, >>>>>>>> Don W3FPR >>>>>>>> >>>>>>>> On 4/10/2020 2:48 PM, Christophe aufacf wrote: >>>>>>>> > From rmcgraw at blomand.net Sun Apr 12 12:47:45 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 12 Apr 2020 11:47:45 -0500 Subject: [Elecraft] [microHAM] Line Out Suddenly drops In-Reply-To: <1729758759.2958624.1586707485129@mail.yahoo.com> References: <1729758759.2958624.1586707485129@mail.yahoo.com> Message-ID: <39D33FD2-41D1-4081-A040-AD8E57C23D5C@blomand.net> I use my computer to run several ham digital applications. I use the same computer to play music when doing other stuff. I use my computer to edit sound and video files. The many applications I use do change various items, values, and settings. It is easy to determine what settings are affected and what their values should be for digits modes. Write them down or make screen captures and print them for future reference. Bob, K4TAX Sent from my iPhone > On Apr 12, 2020, at 11:06 AM, Gary Hunt via Elecraft wrote: > > ?There has to be another application changing the actual Window's audio levels. Document what those levels are in Sound Devices Manager when all is working correctly vs when not.Also, I'm not sure what the upside is for adding the MicrokeyerII to the equation. The K3S is capable of FT8 with no additional interface. That was why I updated my K3 after a lightning strike took out the MicroKeyerII. > 73 > Gary KC9EE > > Sent from Yahoo Mail on Android > > On Sat, Apr 11, 2020 at 1:16 PM, Pete W1RM wrote: The K3S works just fine on FT modes. I had my line level set for 11 but > today I had to crank my line level way up to get the same output level. > I've made no changes that I'm aware of. My Line out goes to the micro Keyer > II > > > > Any suggestions as to why and how to fix? > > > > I'm using a micro Keyer II with software version 9.2.2 > > > > > > > > Pete, W1RM > > W1RM at Comcast.net > > > > > -=-=-=-=-=-=-=-=-=-=-=- > Groups.io Links: You receive all messages sent to this group. > > View/Reply Online (#19356): https://groups.io/g/microHAM/message/19356 > Mute This Topic: https://groups.io/mt/72950102/383090 > Group Owner: microHAM+owner at groups.io > Unsubscribe: https://groups.io/g/microHAM/unsub [kc9ee 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 rmcgraw at blomand.net From dk5ew at darc.de Sun Apr 12 12:47:54 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Sun, 12 Apr 2020 18:47:54 +0200 (CEST) Subject: [Elecraft] Power can be set only to 12W on 100W version Message-ID: <20200412164754.1CC837DA086A@dd7438.kasserver.com> From dk5ew at darc.de Sun Apr 12 12:53:38 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Sun, 12 Apr 2020 18:53:38 +0200 (CEST) Subject: [Elecraft] Power can be set only to 12W on 100W version Message-ID: <20200412165338.598C27DA09E5@dd7438.kasserver.com> Hi all, suddenly I can set the power of my K3/100W version with the power knob on shortwave only to max 12W and on 6m only to 8W. That all happened when I was operating on shortwave the K3 got's suddenly very hot. Hope that the finals did not shot. I checked the KPA3 setting it is on "nor". Any help on that ? 73's Erwin/DK5EW PS: now Text email not html hope it arrives From rmcgraw at blomand.net Sun Apr 12 12:53:55 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 12 Apr 2020 11:53:55 -0500 Subject: [Elecraft] Power can be set only to 12W on 100W version In-Reply-To: <20200412164754.1CC837DA086A@dd7438.kasserver.com> References: <20200412164754.1CC837DA086A@dd7438.kasserver.com> Message-ID: Make sure the KP3A is active via the Menu. Bob, K4TAX Sent from my iPhone > On Apr 12, 2020, at 11:51 AM, Erwin Witt - DK5EW wrote: > > ? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 dk5ew at darc.de Sun Apr 12 13:01:08 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Sun, 12 Apr 2020 19:01:08 +0200 (CEST) Subject: [Elecraft] Power can be set only to 12W on 100W version In-Reply-To: <218369272.2996065.1586710646097@mail.yahoo.com> References: <20200412164754.1CC837DA086A@dd7438.kasserver.com><218369272.2996065.1586710646097@mail.yahoo.com> Message-ID: <20200412170108.D04817DA02E0@dd7438.kasserver.com> Hi Dick, yes it is as I wrote: the setting in PA below line KPA3 is on "nor" 3's Erwin/DK5EW RIchard Williams schrieb am 12.04.2020 18:57 (GMT +02:00): > > > Erwin, > > > In Config hold MENU in for about three seconds. Then use the B VFO knob > and go to PA, and make sure it says PA nor. If not turn the A VFO until it > does say "nor". > > > Dick, K8ZTT > > > Flying is the second greatest thrill known to man. > > > What is first, you ask? Landing, of course. > > > On Sunday, April 12, 2020, 10:53:44 AM MDT, Erwin Witt - DK5EW > wrote: > > > ______________________________________________________________ > > > Elecraft mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: http://mailman.qth.net/mmfaq.htm > > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > > Please help support this email list: > http://www.qsl.net/donate.html > > > Message delivered to richarddw1945 at yahoo.com > > > From dk5ew at darc.de Sun Apr 12 13:40:40 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Sun, 12 Apr 2020 19:40:40 +0200 (CEST) Subject: [Elecraft] Power can be set only to 12W on 100W version In-Reply-To: <1152985310.2928680.1586712766060@mail.yahoo.com> References: <20200412165338.598C27DA09E5@dd7438.kasserver.com><1152985310.2928680.1586712766060@mail.yahoo.com> Message-ID: <20200412174040.307B57DA0291@dd7438.kasserver.com> From nr4c at widomaker.com Sun Apr 12 14:06:03 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 12 Apr 2020 14:06:03 -0400 Subject: [Elecraft] Power can be set only to 12W on 100W version In-Reply-To: <20200412165338.598C27DA09E5@dd7438.kasserver.com> References: <20200412165338.598C27DA09E5@dd7438.kasserver.com> Message-ID: Contact Elecraft customer service. Sent from my iPhone ...nr4c. bill > On Apr 12, 2020, at 12:55 PM, Erwin Witt - DK5EW wrote: > > ? > Hi all, > > suddenly I can set the power of my K3/100W version with the power knob on > shortwave only to max 12W and on 6m only to 8W. > > That all happened when I was operating on shortwave the K3 got's suddenly > very hot. Hope that the finals did not shot. > I checked the KPA3 setting it is on "nor". > > Any help on that ? > > 73's Erwin/DK5EW > > PS: now Text email not html hope it arrives > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 dk5ew at darc.de Sun Apr 12 15:06:59 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Sun, 12 Apr 2020 21:06:59 +0200 (CEST) Subject: [Elecraft] Power can be set only to 12W on 100W version-AK5X response In-Reply-To: <8B26D0AB-6DAF-4684-87C4-2561ACD88BC0@me.com> References: <20200412165338.598C27DA09E5@dd7438.kasserver.com><8B26D0AB-6DAF-4684-87C4-2561ACD88BC0@me.com> Message-ID: <20200412190659.813047DA1835@dd7438.kasserver.com> Thanks guys, I will check that all again and contact elecraft as well. happy eastern to you all and take care. 73s Erwin/DK5EW William Hammond schrieb am 12.04.2020 20:15 (GMT +02:00): > Hi Erwin, > Some plenary troubleshooting might include making sure your power cables > and > connections are secure. The K3 is very sensitive to low (voltage) power. > Change > the metering to see voltage. Observe it on RX and TX. Also observe the > current. > Writing to Elecraft tech support is always a good option. No one has the > troubleshooting experience on the K3 like that that crew. I suspect they > have > defined troubleshooting steps for this problem. > > I would be suspicious of the power. > > 73, Bill-AK5X > > > On Apr 12, 2020, at 11:53 AM, Erwin Witt - DK5EW wrote: > > > > > > Hi all, > > > > suddenly I can set the power of my K3/100W version with the power knob > on > > shortwave only to max 12W and on 6m only to 8W. > > > > That all happened when I was operating on shortwave the K3 got's > suddenly > > very hot. Hope that the finals did not shot. > > I checked the KPA3 setting it is on "nor". > > > > Any help on that ? > > > > 73's Erwin/DK5EW > > > > PS: now Text email not html hope it arrives > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 ben.gelb at gmail.com Sun Apr 12 15:21:48 2020 From: ben.gelb at gmail.com (Ben Gelb) Date: Sun, 12 Apr 2020 12:21:48 -0700 Subject: [Elecraft] [K3S] intermittent RF path interruption Message-ID: 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 From k3wjv at yahoo.com Sun Apr 12 15:56:12 2020 From: k3wjv at yahoo.com (Bill Stravinsky) Date: Sun, 12 Apr 2020 19:56:12 +0000 (UTC) Subject: [Elecraft] Power can be set only to 12W on 100W version In-Reply-To: References: <20200412165338.598C27DA09E5@dd7438.kasserver.com> Message-ID: <1221270850.4777707.1586721372588@mail.yahoo.com> In the event you have a very old K3 (serial number approx 3000 or earlier) you might need to replace some plugs on the final amp. As has beensuggested the first thing to do would be to contact Elecraft. Good Luck. BillK3WJV On Sunday, April 12, 2020, 2:11:23 PM EDT, Nr4c wrote: Contact Elecraft customer service. Sent from my iPhone ...nr4c. bill > On Apr 12, 2020, at 12:55 PM, Erwin Witt - DK5EW wrote: > > ? > Hi all, > > suddenly I can set the power of my K3/100W version with the power knob on > shortwave only to max 12W and on 6m only to 8W. > > That all happened when I was operating on shortwave the K3 got's suddenly > very hot. Hope that the finals did not shot. > I checked the KPA3 setting it is on "nor". > > Any help on that ? > > 73's Erwin/DK5EW > > PS: now Text email not html hope it arrives > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 k3wjv at yahoo.com From W6VAR at Comcast.net Sun Apr 12 16:03:13 2020 From: W6VAR at Comcast.net (Jim - W6VAR) Date: Sun, 12 Apr 2020 13:03:13 -0700 (MST) Subject: [Elecraft] KIO3-B Sound w/ Faros Message-ID: <1586721793416-0.post@n2.nabble.com> I updated my K3 to the KIO3-B USB/Sound card. When I try to monitor beacons using Faros and set the audio to the K3 Soundcard, the application locks up the scanning, waterfall and I show the red icon for the sound card. Has anybody else had this challenge and found a resolution? Using a line-out audio to my computer soundcard still works, but that defeats the purpose of having the KIO3-B. Thanks, Jim - W6VAR -- Sent from: http://elecraft.365791.n2.nabble.com/ From nr4c at widomaker.com Sun Apr 12 16:03:32 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 12 Apr 2020 16:03:32 -0400 Subject: [Elecraft] [K3S] intermittent RF path interruption In-Reply-To: References: Message-ID: <00F96F4E-A3BC-47EA-B124-4662D42EF9A7@widomaker.com> 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 99sunset at gmail.com Sun Apr 12 16:28:17 2020 From: 99sunset at gmail.com (Steve Hall) Date: Sun, 12 Apr 2020 16:28:17 -0400 Subject: [Elecraft] 40 meter net Message-ID: 4-12-2020 40 meter net, 1845Z. 7.280 kHz With thunder storms in my area copy was a little more difficult than normal. Thanks to all that assisted with check-ins. Eric, thanks for the assistance with check-ins. A little practice and you will get the hang of it. See you all next Sunday. WM6P GA Steve K3S net control K8NU OH Carl K3S/KPA1500 N8SBE MI Dave K3S NC0JW CO JIM KX3 WB9JNZ IL Eric K3 N0MPM IA Mike K3S K4PJS FL Phil FT1000 AC9PA IL Byron TEN TEC ORIAN WW4JF TN John K3S From elanzl at sbcglobal.net Sun Apr 12 16:47:59 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Sun, 12 Apr 2020 20:47:59 +0000 (UTC) Subject: [Elecraft] 4-12-2020 SSB Net References: <672558740.4685256.1586724479837.ref@mail.yahoo.com> Message-ID: <672558740.4685256.1586724479837@mail.yahoo.com> Here is the list of stations checking in to the 20m net today. I want to thank the relay stations for their help with receiving the stations that I was not able to hear. Remember we now have a 40 m. net at 18.45 which is on 7.280 plus or minus depending on use. Everyone is welcome to check in to either net. Eric WB9JNZ Call???????????? Name????? State?????? Radio??????? Serial #?????????????????????????? QRP???????????????????????? Notes WB9JNZ????????? Eric??????????????? IL??????????????????? K3???????????????????? 4017????????????????? ???????????? Net Control K8NU/7?????????? Carl?????????????? OH/WA??????? FT???????????????????? 2000????????????????? ???????????? ? ?? Relay Station????? ? K1NW????????????? Brian???????????? RI?????????????????? K3???????????????????? 4974????????????????? ????????????? Relay Station N4NRW?????????? Roger?????????? SC????????????????? K3???????????????????? 1318????????????????? ????????????????????????????????????????????? ? KB9AVO????????? Paul????????????? IN?????????????????? K3S?????????????????? 11103??????????????? ????????????????????????????????????????????? ? WM6P???????????? Steve?????????? GA???????????????? K3S?????????????????? 11453??????????????? ????????????????????????????????????????????? ? NC0JW???????????? Jim??????????????? CO???????????????? KX3????????????????? 1356????????????????? ?????????? ?? ? Relay Station????? ? KF7ZN????????????? Ron?????????????? UT????????????????? K3S?????????????????? 10832??????????????? ????????????????????????????????????????????? ? AE1E???????????????? Ken?????????????? NM??????????????? K3S?????????????????? 11611??????????????? ????????????????????????????????????????????? ? N6PGQ??????????? Bob?????????????? CA????????????????? K3???????????????????? 5891????????????????? ????????????????????????????????????????????? ? KO5V??????????????? Jim??????????????? NM??????????????? K2/100??????????? 7225????????????????? ???????????? ? ? ? Relay Station????? ? K7BRR????????????? Bill???????????????? AZ????????????????? K3 / K3S????????? 5545 / 10939? ????????????????????????????????????????????? ? N0MPM????????? Mike???????????? IA?????????????????? K3S?????????????????? 10514??????????????? ????????????????????????????????????????????? ? KE0JIL?????????????? Joel?????????????? MO??????????????? Yaesu????????????? FT-991????????????? ????????????????????????????????????????????? ? KC5SOZ?????????? Levi?????????????? NM??????????????? Yaesu????????????? FT -891???????????? ????????????????????????????????????????????? ? NS7P??????????????? Phil??????????????? OR???????????????? K3???????????????????? 1826????????????????? ????????????????????????????????????????????? ? N6FAI?????????????? Martin???????? CA????????????????? Yaesu????????????? 950??????????????????? ????????????????????????????????????????????? ? N7BDL????????????? Terry??????????? AZ????????????????? K3S?????????????????? 10373??????????????? ????????????????????????????????????????????? ? VE7XTA?????????? Tom????????????? BC????????????????? KX3????????????????? 10393??????????????? ????????????????????????????????????????????? ? WW4JF??????????? John???????????? TN????????????????? K3 / K3S????????? 6185 / 11177? ????????????????????????????????????????????? ? K2VJK?????????????? Vern???????????? NY????????????????? K3S?????????????????? 10151??????????????? ????????????????????????????????????????????? ? VA7ZOO????????? Bill???????????????? BC????????????????? KX3????????????????? 3035???????????? ?QRP????????????????????????????????????????? ? KC9JXJ???????????? Hi?????????????????? IL??????????????????? Kenwood????? 590SG?????????????? ????????????????????????????????????????????? ? K4HGG??????????? Dale????????????? GA???????????????? K3S?????????????????? 11045??????????????? ????????????????????????????????????????????? ? N8SBE????????????? Dave???????????? MI????????????????? K3S?????????????????? 11361??????????????? ????????????????????????????????????????????? ? W7QHD?????????? Kurt????????????? AZ????????????????? K2/100 / Kx3 1538 / 8697???? ????????????????????????????????????????????? ? K6WDE Dave????? CA????????? KX3??????? 4599??????? From rmcgraw at blomand.net Sun Apr 12 17:07:06 2020 From: rmcgraw at blomand.net (Bob McGraw) Date: Sun, 12 Apr 2020 16:07:06 -0500 Subject: [Elecraft] [K3S] intermittent RF path interruption In-Reply-To: <00F96F4E-A3BC-47EA-B124-4662D42EF9A7@widomaker.com> References: <00F96F4E-A3BC-47EA-B124-4662D42EF9A7@widomaker.com> Message-ID: <82063072-16ea-3ebc-586e-c1dbc1423b4f@blomand.net> Also check to see that SPLIT is not active on 6M 73 Bob, K4TAX On 4/12/2020 3:03 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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 kevinr at coho.net Sun Apr 12 23:15:02 2020 From: kevinr at coho.net (kevinr) Date: Sun, 12 Apr 2020 20:15:02 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: <4dfff099-c73b-2494-2981-45c279ac5b02@coho.net> Good Evening, ?? Conditions were more noisy than I had expected.? Just before the first net I read there had been a burst of solar wind.? That caused the QSB to be deeper too, especially on 40 meters.? KL7CW had the best signal on 20 meters though it was much weaker on 40. W8OV had a good signal from Texas but forecast cooler, wetter weather.? 77 degrees and sunny sounded nice.? On 40 meters we mentioned ignoring the siren call of hardware stores in the spring.? So many plans ... ? On 14050.5 kHz at 2200z: NO8V - John - MI W0CZ - Ken - ND KL7CW - Rick - AK W8OV - Dave - TX K4TO - Dave - KY N8ZR - Harry - WV ? On 7047.5 kHz at 0000z: KL7CW - Rick - AK K6PJV - Dale - CA K0DTJ - Brian - CA ?? Rick told us he still had two feet of snow.? The Coast Range has lost almost all of its snow while the Cascades are still white with it.? K4TO had the best weather of the lot with more on the way.? I bet he'll be stringing more antennas soon. ?? The forest is filling with more birds.? The rodents are awake trimming the new growth.? A pileated woodpecker is chipping his way into one of the cedar trees.? They're finding the standing dead trees left after the thin.? The first berry bushes are blooming too. ?? Until next week stay well & 73, ?????? Kevin.? KD5ONS - From dk5ew at darc.de Mon Apr 13 02:53:16 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Mon, 13 Apr 2020 08:53:16 +0200 (CEST) Subject: [Elecraft] chk braker ? Message-ID: <20200413065316.8768A7DA067E@dd7438.kasserver.com> Hi all, one more question pse: I have seen in the display once a message when turning power knob named "chk breaker" Not sure if message name is correct it comes only ones and seldom. Any idea on that ? 73's Erwin/DK5EW From dk5ew at darc.de Mon Apr 13 03:03:39 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Mon, 13 Apr 2020 09:03:39 +0200 (CEST) Subject: [Elecraft] chk braker ? In-Reply-To: <20200413065316.8768A7DA067E@dd7438.kasserver.com> References: <20200413065316.8768A7DA067E@dd7438.kasserver.com> Message-ID: <20200413070339.52A0D7DA03CF@dd7438.kasserver.com> OK it was the backside fuse I pulled it in now. When turning now the power knob K3 is switching off, voltage on ps is going down and K3 PA unit is getting quick vry hot. Next is I disable pa unit. 73's Erwin/DK5EW Member of the Team of MMMonVHF your premium VHF.DX resource in the internet can be found at: http://www.MMMonVHF.de Personal Homepage: http://www.dk5ew.com 70MHz.de - die deutsche 4m Seite: http://www.70mhz.de Erwin Witt - DK5EW schrieb am 13.04.2020 08:53 (GMT +02:00): > Hi all, > > one more question pse: > > > I have seen in the display once a message when turning power knob named > "chk > breaker" > Not sure if message name is correct it comes only ones and seldom. > > Any idea on that ? > > 73's Erwin/DK5EW > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: > http://www.qsl.net/donate.html > Message delivered to dk5ew at darc.de > > From dk5ew at darc.de Mon Apr 13 04:41:08 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Mon, 13 Apr 2020 10:41:08 +0200 (CEST) Subject: [Elecraft] KP3A circuit ? Message-ID: <20200413084108.149057DA0219@dd7438.kasserver.com> Does anybody has the circuit diagram of the KP3A module ? I have board revision C. Thank you ! 73's Erwin/DK5EW From dk5ew at darc.de Mon Apr 13 05:30:51 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Mon, 13 Apr 2020 11:30:51 +0200 (CEST) Subject: [Elecraft] KP3A circuit ? In-Reply-To: <20200413084108.149057DA0219@dd7438.kasserver.com> References: <20200413084108.149057DA0219@dd7438.kasserver.com> Message-ID: <20200413093051.CDF0E7DA03CF@dd7438.kasserver.com> I have found now the circuit at the elecraft ftp server. Found out also that there is a brocken pin at the PA board at jumper at P68A male connector. This brocken pin still remains in the according female connector. So lots of problems. 73's Erwin/DK5EW Erwin Witt - DK5EW schrieb am 13.04.2020 10:41 (GMT +02:00): > Does anybody has the circuit diagram of the KP3A module ? I have board > revision > C. > > Thank you ! > > 73's Erwin/DK5EW > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: > http://www.qsl.net/donate.html > Message delivered to dk5ew at darc.de > > From a.durbin at msn.com Mon Apr 13 08:21:09 2020 From: a.durbin at msn.com (Andy Durbin) Date: Mon, 13 Apr 2020 12:21:09 +0000 Subject: [Elecraft] KP3A circuit ? Message-ID: "Found out also that there is a brocken pin at the PA board at jumper at P68A male connector. This brocken pin still remains in the according female connector. So lots of problems." I don't know this module but Elecraft "keys" some connectors by removing a male pin and plugging the corresponding female pin. Are you sure what you are seeing is not intended keying? 73, Andy, k3wyc From carlos.on6cn at gmail.com Mon Apr 13 09:19:33 2020 From: carlos.on6cn at gmail.com (carlos.p) Date: Mon, 13 Apr 2020 06:19:33 -0700 (MST) Subject: [Elecraft] k2 c45 capacitor Message-ID: <1586783973817-0.post@n2.nabble.com> hi, on the partslist control board are 3 22?f capacitors c 13,c32,c45 c45 seems not on the control board, i assume its deleted in later pcb version...... carlos -- Sent from: http://elecraft.365791.n2.nabble.com/ From dk5ew at darc.de Mon Apr 13 09:28:40 2020 From: dk5ew at darc.de (Erwin Witt - DK5EW) Date: Mon, 13 Apr 2020 15:28:40 +0200 (CEST) Subject: [Elecraft] KP3A circuit ? In-Reply-To: References: Message-ID: <20200413132840.BED867DA086A@dd7438.kasserver.com> Andy, yes indeed I had a closer look and it seems that the left pin on P68A is by factory. I compared pictures of the pa board at google and there it is the same depend on board revision. 73's Erwin/DK5EW Member of the Team of MMMonVHF your premium VHF.DX resource in the internet can be found at: http://www.MMMonVHF.de Personal Homepage: http://www.dk5ew.com 70MHz.de - die deutsche 4m Seite: http://www.70mhz.de Andy Durbin schrieb am 13.04.2020 14:21 (GMT +02:00): > "Found out also that there is a brocken pin at the PA board at jumper at > P68A > male connector. This brocken pin still remains in the according female > connector. > So lots of problems." > > I don't know this module but Elecraft "keys" some connectors by removing a > male > pin and plugging the corresponding female pin. Are you sure what you are > seeing > is not intended keying? > > 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 dk5ew at darc.de > > From dave at w8fgu.com Mon Apr 13 09:39:26 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Mon, 13 Apr 2020 13:39:26 +0000 Subject: [Elecraft] k2 c45 capacitor In-Reply-To: <1586783973817-0.post@n2.nabble.com> References: <1586783973817-0.post@n2.nabble.com> Message-ID: Carlos, C45 is mounted on the back of the Control Board as part of the CW Keying Waveshaping modification. You can find the installation instructions for that mod on page 21 of the current K2 manual. Hope this helps... 73, Dave W8FGU ------ Original Message ------ From: "carlos.p" To: elecraft at mailman.qth.net Sent: 4/13/2020 9:19:33 AM Subject: [Elecraft] k2 c45 capacitor >hi, on the partslist control board are 3 22?f capacitors c >13,c32,c45 c45 seems not on the control board, i assume its deleted in >later pcb version...... >carlos > > > >-- >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 pokirley at gmail.com Mon Apr 13 11:29:35 2020 From: pokirley at gmail.com (Paul Kirley) Date: Mon, 13 Apr 2020 15:29:35 +0000 Subject: [Elecraft] KP3A circuit ? Message-ID: Erwin DK5EW sed: Found out also that there is a brocken pin at the PA board at jumper at P68A male connector. This brocken pin still remains in the according female connector. So lots of problems. *************************** Dear OM Erwin, Information that may help you is in an Elecraft Note that is attached to this e-mail (but will not get to the reflector, so I have cced you directly). Problems with pins carrying power to the KPA3 are pretty common. The applicable note, KPA3 Power Connector Replacement Revision B, June 30, 2017, used to be available on the Elecraft website. But now the relevant webpage https://elecraft.com/pages/mods-notes-alerts is devoid of information. I have no idea why this was done. Because the gold-plated male and female connectors are fairly common components, it may be cheaper for you to obtain them in Germany rather than having them shipped from California. 73, Paul W8TM From k9ma at sdellington.us Mon Apr 13 12:12:36 2020 From: k9ma at sdellington.us (K9MA) Date: Mon, 13 Apr 2020 11:12:36 -0500 Subject: [Elecraft] KPA1500 Schematics Message-ID: <8ea53982-9d5b-7895-df17-51465f5daced@sdellington.us> A while ago, someone suggested that Elecraft would provide the KPA1500 and other unreleased schematics to customers. That is not the case: "HI Scott, Thanks for contacting?Elecraft. While the released schematics are posted on the Elecraft website, they do not yet include the KPA1500." 73, Scott K9MA -- Scott K9MA k9ma at sdellington.us From va3mw at portcredit.net Mon Apr 13 12:34:35 2020 From: va3mw at portcredit.net (Michael Walker) Date: Mon, 13 Apr 2020 12:34:35 -0400 Subject: [Elecraft] KPA1500 Schematics In-Reply-To: <8ea53982-9d5b-7895-df17-51465f5daced@sdellington.us> References: <8ea53982-9d5b-7895-df17-51465f5daced@sdellington.us> Message-ID: Hi Scott I am sure they will show up in time, however I suspect the K4 and Covid are higher on the priority list. 73, Mike va3mw On Mon, Apr 13, 2020 at 12:13 PM K9MA wrote: > A while ago, someone suggested that Elecraft would provide the KPA1500 > and other unreleased schematics to customers. That is not the case: > > "HI Scott, > Thanks for contacting Elecraft. > > While the released schematics are posted on the Elecraft website, they > do not yet include the KPA1500." > > > 73, > Scott K9MA > > -- > Scott K9MA > > k9ma at sdellington.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 > > 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 k4win at mac.com Mon Apr 13 13:02:32 2020 From: k4win at mac.com (Chris Pinholster) Date: Mon, 13 Apr 2020 13:02:32 -0400 Subject: [Elecraft] K3 High SWR Message-ID: I recently moved and set up the same temporary Butternut vertical as I used in my previous restricted HOA location. (When this virus stuff is over and I can get help, a small tower and a decent antenna will be erected). The K3 is factory built and does not have an ATU. I get a 99 high swr reading on every band the antenna is tuned for, I replaced coax and connectors three times. My Rig Expert analyzer shows swr below 2 on the two bands I wish to use, 40m and 20m. In Tune the external P3000 shows swr below 2, however the K3 still shows 99. I?ve looked through the archives and I can?t find the answer I was looking for. (one that didn?t require sending the radio back to the factory). I am hoping for an answer involving pilot error and an easy fix. The movers didn?t handle the radio, I white glove delivered it to the new house myself. I don?t own a dummy load yet, having sold everything but the K3 when I went to an HOA restrictive community for five years. Any help would be appreciated. Chris Pinholster k4win at mac.com From wunder at wunderwood.org Mon Apr 13 13:21:57 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Mon, 13 Apr 2020 10:21:57 -0700 Subject: [Elecraft] K3 High SWR In-Reply-To: References: Message-ID: If you want to build a dummy load, I recommend the Oak Hills Research RFL-100 kit for $50 (http://www.ohr.com/rfl100.htm). I took pictures while I was building mine. You can see those in this blog post. https://observer.wunderwood.org/2016/12/31/building-a-dummy-load/ wunder Walter Underwood wunder at wunderwood.org http://observer.wunderwood.org/ (my blog) > On Apr 13, 2020, at 10:02 AM, Chris Pinholster via Elecraft wrote: > > I recently moved and set up the same temporary Butternut vertical as I used in my previous restricted HOA location. (When this virus stuff is over and I can get help, a small tower and a decent antenna will be erected). > > The K3 is factory built and does not have an ATU. I get a 99 high swr reading on every band the antenna is tuned for, I replaced coax and connectors three times. My Rig Expert analyzer shows swr below 2 on the two bands I wish to use, 40m and 20m. In Tune the external P3000 shows swr below 2, however the K3 still shows 99. > > I?ve looked through the archives and I can?t find the answer I was looking for. (one that didn?t require sending the radio back to the factory). I am hoping for an answer involving pilot error and an easy fix. The movers didn?t handle the radio, I white glove delivered it to the new house myself. > > I don?t own a dummy load yet, having sold everything but the K3 when I went to an HOA restrictive community for five years. > > Any help would be appreciated. > > Chris Pinholster > k4win 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 ghyoungman at gmail.com Mon Apr 13 13:22:22 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Mon, 13 Apr 2020 13:22:22 -0400 Subject: [Elecraft] K3 High SWR In-Reply-To: References: Message-ID: <30D3DDF4-74ED-48CD-8282-FA2D29668E82@gmail.com> Do you have the correct antenna selected on the K3? ANT1/ANT2, etc.? Grant NQ5T > On Apr 13, 2020, at 1:02 PM, Chris Pinholster via Elecraft wrote: > > I recently moved and set up the same temporary Butternut vertical as I used in my previous restricted HOA location. (When this virus stuff is over and I can get help, a small tower and a decent antenna will be erected). > > The K3 is factory built and does not have an ATU. I get a 99 high swr reading on every band the antenna is tuned for, I replaced coax and connectors three times. My Rig Expert analyzer shows swr below 2 on the two bands I wish to use, 40m and 20m. In Tune the external P3000 shows swr below 2, however the K3 still shows 99. > From rmcgraw at blomand.net Mon Apr 13 13:56:14 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 13 Apr 2020 12:56:14 -0500 Subject: [Elecraft] K3 High SWR In-Reply-To: References: Message-ID: I've used this source for Bird elements and dummy loads with very good success.?? Although most may be "used" they are guaranteed and he has a good return policy if needed. Here is an example of a Bird 100 watt dummy load for $50.00 DB4303B?W/N-Male Connector?(NOT? SMALLER DB4303 or G)?? For an additional? $5.00 you can get the N to UHF adapter. https://www.nm3e.com/loadSampler.htm#LoadSampler I have no interest in the company or person, just a paying customer.? I offer this as another suggestion. 73 Bob, K4TAX ** On 4/13/2020 12:21 PM, Walter Underwood wrote: > If you want to build a dummy load, I recommend the Oak Hills Research RFL-100 kit for $50 (http://www.ohr.com/rfl100.htm). I took pictures while I was building mine. You can see those in this blog post. > > https://observer.wunderwood.org/2016/12/31/building-a-dummy-load/ > > wunder > Walter Underwood > wunder at wunderwood.org > http://observer.wunderwood.org/ (my blog) > >> On Apr 13, 2020, at 10:02 AM, Chris Pinholster via Elecraft wrote: >> >> I recently moved and set up the same temporary Butternut vertical as I used in my previous restricted HOA location. (When this virus stuff is over and I can get help, a small tower and a decent antenna will be erected). >> >> The K3 is factory built and does not have an ATU. I get a 99 high swr reading on every band the antenna is tuned for, I replaced coax and connectors three times. My Rig Expert analyzer shows swr below 2 on the two bands I wish to use, 40m and 20m. In Tune the external P3000 shows swr below 2, however the K3 still shows 99. >> >> I?ve looked through the archives and I can?t find the answer I was looking for. (one that didn?t require sending the radio back to the factory). I am hoping for an answer involving pilot error and an easy fix. The movers didn?t handle the radio, I white glove delivered it to the new house myself. >> >> I don?t own a dummy load yet, having sold everything but the K3 when I went to an HOA restrictive community for five years. >> >> Any help would be appreciated. >> >> Chris Pinholster >> k4win 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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 kd5spx at gmail.com Mon Apr 13 15:30:57 2020 From: kd5spx at gmail.com (Wayne Suite) Date: Mon, 13 Apr 2020 14:30:57 -0500 Subject: [Elecraft] Kpa500 lcd display issue Message-ID: The lcd on the kpa 500 shows onlty test pattrrn except when I upgraded the firmware to version 1.54 from ver 1.38 today during the upgrade the lcu showed Mcu Load like it is suposed to do. When done the unit restarted and the damn test pattern is back all the time. Prior to upgrading thr firmware I suspected the led driver chip U6 PCF8576DT to be at fault since it has the power on reset function which I thought was causing the test pattern, now not so much. Anyway it works 100% otherwise just have to monitor it from the pc port. All other front panel stuff works I suspect the buttons for the menu pwr current and temp work also but I cant tell since the lcd only shows test pattern. Looking for Don or Wayne to comment I put in an email to the mothership yesterday with few details but today much happier I dont have a brick. Wayne Kd5spx From kd5spx at gmail.com Mon Apr 13 15:37:53 2020 From: kd5spx at gmail.com (Wayne Suite) Date: Mon, 13 Apr 2020 14:37:53 -0500 Subject: [Elecraft] Firmware 1.52 kpa500 Message-ID: The version notes said with this version the ability was provided to clear all faults using the pc port. I have old old faults still in the log so I want to clear them all so how do I do it through the pc port? Tia Wayne Kd5spx From jackbrindle at me.com Mon Apr 13 15:58:11 2020 From: jackbrindle at me.com (Jack Brindle) Date: Mon, 13 Apr 2020 12:58:11 -0700 Subject: [Elecraft] Kpa500 lcd display issue In-Reply-To: References: Message-ID: <02C75326-75B5-41D9-8943-84F865E20977@me.com> Wayne; What are you calling ?test pattern?? There is an LCD test in the system, but it is not available normally, and also not a settable configuration. Give me more info and I?ll try to diagnose. 73! Jack, W6FB > On Apr 13, 2020, at 12:30 PM, Wayne Suite wrote: > > The lcd on the kpa 500 shows onlty test pattrrn except when I upgraded the > firmware to version 1.54 from ver 1.38 today during the upgrade the lcu > showed Mcu Load like it is suposed to do. When done the unit restarted and > the damn test pattern is back all the time. > > Prior to upgrading thr firmware I suspected the led driver chip U6 > PCF8576DT to be at fault since it has the power on reset function which I > thought was causing the test pattern, now not so much. > > Anyway it works 100% otherwise just have to monitor it from the pc port. > All other front panel stuff works I suspect the buttons for the menu pwr > current and temp work also but I cant tell since the lcd only shows test > pattern. > > Looking for Don or Wayne to comment I put in an email to the mothership > yesterday with few details but today much happier I dont have a brick. > > Wayne > Kd5spx > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Mon Apr 13 16:03:42 2020 From: a.durbin at msn.com (Andy Durbin) Date: Mon, 13 Apr 2020 20:03:42 +0000 Subject: [Elecraft] Kpa500 lcd display issue Message-ID: "All other front panel stuff works I suspect the buttons for the menu pwr current and temp work also but I cant tell since the lcd only shows test pattern." The KPA500 display will show what looks like a test pattern if menu item LCD ADJ is set to 100. If it used to work you may have accidentally changed the value. Adjusting it with the menu may be difficult if you can't read the display. There may be an undocumented command to set this value or perhaps it can be changed by loading a saved config file. 73, Andy, k3wyc From jackbrindle at me.com Mon Apr 13 16:19:43 2020 From: jackbrindle at me.com (Jack Brindle) Date: Mon, 13 Apr 2020 13:19:43 -0700 Subject: [Elecraft] Kpa500 lcd display issue In-Reply-To: References: Message-ID: <9478493E-6371-4414-A39C-A9515D6EC814@me.com> There is no serial command to change the LCD ADJ setting. However, you can reset the saved parameters by holding the EDIT button while powering up the KPA. 73, Jack, W6FB > On Apr 13, 2020, at 1:03 PM, Andy Durbin wrote: > > "All other front panel stuff works I suspect the buttons for the menu pwr > current and temp work also but I cant tell since the lcd only shows test > pattern." > > The KPA500 display will show what looks like a test pattern if menu item LCD ADJ is set to 100. If it used to work you may have accidentally changed the value. > > Adjusting it with the menu may be difficult if you can't read the display. There may be an undocumented command to set this value or perhaps it can be changed by loading a saved config file. > > 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 jackbrindle at me.com From nz0tham at gmail.com Tue Apr 14 10:27:42 2020 From: nz0tham at gmail.com (William Carpenter) Date: Tue, 14 Apr 2020 09:27:42 -0500 Subject: [Elecraft] KPA500 problem Message-ID: For the second time i about two years my KPA500 is suffering from the low RX sensitivity in OPR. Transmit is fine with full output ona ll bands. The last time this happened the culprit was R7 on the PA unit which had cracked and burned slightly. Elecraft sent me a new R7 very quickly and for free - the usual great customer service. I installed it and the amp was fine again. It happened again last night so I took the PA unit out this morning. R7 looks fine and tests fine as do all the associated components. So, I'm at a loss. The only thing I can think of is that my ugly SMT solder job has gone bad - is OK with the meter but breaks down under normal voltage and current. Is that ever an issue with SMT? I don't know mush about SMT stuff. I have an email sent to Elecraft service so hope to hear from them sometime. Not sure how responsive they can be in lockdown. I should mention this amp was purchased as a new kit in 2016. Any input is appreciated! Especially as to what may be causing this to happen 73, Bill NZ0T From M0XDF at Alphadene.co.uk Tue Apr 14 10:46:13 2020 From: M0XDF at Alphadene.co.uk (David Ferrington, M0XDF) Date: Tue, 14 Apr 2020 15:46:13 +0100 Subject: [Elecraft] KIO3BUPKT_KIO3B Upgrade Kit for K3 Message-ID: <83B11A2A-E705-44F8-B8EB-A9018EE7EFEA@Alphadene.co.uk> Am I right in thinking this is the upgrade to replace the original KIO3 with the USB version? TIA 73 de David, M0XDF (K3 #174, P3 #108) -- We are not the same persons this year as last; nor are those we love. It is a happy chance if we, changing, continue to love a changed person. -William Somerset Maugham, writer (1874-1965) From donwilh at embarqmail.com Tue Apr 14 10:57:06 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 14 Apr 2020 10:57:06 -0400 Subject: [Elecraft] KIO3BUPKT_KIO3B Upgrade Kit for K3 In-Reply-To: <83B11A2A-E705-44F8-B8EB-A9018EE7EFEA@Alphadene.co.uk> References: <83B11A2A-E705-44F8-B8EB-A9018EE7EFEA@Alphadene.co.uk> Message-ID: David, Yes, that is correct. 73, Don W3FPR On 4/14/2020 10:46 AM, David Ferrington, M0XDF wrote: > Am I right in thinking this is the upgrade to replace the original KIO3 with the USB version? > TIA > > 73 de David, M0XDF (K3 #174, P3 #108) > From M0XDF at Alphadene.co.uk Tue Apr 14 11:08:47 2020 From: M0XDF at Alphadene.co.uk (David Ferrington, M0XDF) Date: Tue, 14 Apr 2020 16:08:47 +0100 Subject: [Elecraft] KIO3BUPKT_KIO3B Upgrade Kit for K3 In-Reply-To: References: <83B11A2A-E705-44F8-B8EB-A9018EE7EFEA@Alphadene.co.uk> Message-ID: <7DC53B8C-472F-42F9-8ECC-F363F6BE759A@Alphadene.co.uk> Brilliant, Thank you Don. Just ordered one. I was a bit concerned that I wouldn?t be able to get one now and having not used the K3 in the shack for a bit, but performed an upgrade on my Mac OS, knew I would have trouble with my original KUSB, so wanted to switch to a USB interface. Happy Days? 73 de David, M0XDF (K3 #174, P3 #108) > On 14 Apr 2020, at 15:57, Don Wilhelm wrote: > > David, > > Yes, that is correct. > > 73, > Don W3FPR > > On 4/14/2020 10:46 AM, David Ferrington, M0XDF wrote: >> Am I right in thinking this is the upgrade to replace the original KIO3 with the USB version? >> TIA >> 73 de David, M0XDF (K3 #174, P3 #108) From chrisc at chris.org Tue Apr 14 13:14:24 2020 From: chrisc at chris.org (Chris Cox, N0UK) Date: Tue, 14 Apr 2020 12:14:24 -0500 Subject: [Elecraft] PX3 acrylic scratch removal Message-ID: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> Can anyone recommend a safe polish or other to aid in buffing out a minor surface scratch on the plastic (Perspex/acrylic?) screen cover on a PX3? inTHANKSadvance Chris, N0UK, G4JEC From mike.ab3ap at gmail.com Tue Apr 14 13:21:31 2020 From: mike.ab3ap at gmail.com (Mike Markowski) Date: Tue, 14 Apr 2020 13:21:31 -0400 Subject: [Elecraft] PX3 acrylic scratch removal In-Reply-To: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> References: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> Message-ID: I've used Polywatch for similar things in the past, but not on a PX3. So check product details first, and maybe others here know of better. Should your sign off be: adTHANKSvance ? :-D 73, Mike ab3ap On 4/14/20 1:14 PM, Chris Cox, N0UK wrote: > Can anyone recommend a safe polish or other to aid in buffing out a minor surface scratch on the plastic (Perspex/acrylic?) screen cover on a PX3? > > inTHANKSadvance > > Chris, N0UK, G4JEC From g4gnx at g4gnx.com Tue Apr 14 13:22:34 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Tue, 14 Apr 2020 17:22:34 +0000 Subject: [Elecraft] PX3 acrylic scratch removal In-Reply-To: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> References: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> Message-ID: Chris, you cab buy Perspex polish, but I'm not sure where from right now. Perhaps eBay? 73, Alan. G4GNX ------ Original Message ------ From: "Chris Cox, N0UK" To: elecraft at mailman.qth.net Sent: 14/04/2020 18:14:24 Subject: [Elecraft] PX3 acrylic scratch removal >Can anyone recommend a safe polish or other to aid in buffing out a minor surface scratch on the plastic (Perspex/acrylic?) screen cover on a PX3? > >inTHANKSadvance > >Chris, N0UK, G4JEC >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.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 a.durbin at msn.com Tue Apr 14 13:25:45 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 14 Apr 2020 17:25:45 +0000 Subject: [Elecraft] Kpa500 lcd display issue In-Reply-To: References: Message-ID: Given that the "test pattern" may be caused by an extreme LCD contrast setting I'd suggest checking the contrast voltage that is derived from PWM signal VCONTRAST. Contrast voltage is available of "TP2" which is connected to LCD pin 55 (VLCD). The schematic shows VLCD range is 3 - 6.5 V. I see a good display with LCD ADJ set anywhere between 0 and 30 so I would guess VLCD between 3 V and 4 V would give a readable display. 73, Andy k3wyc From chrisc at chris.org Tue Apr 14 13:30:29 2020 From: chrisc at chris.org (Chris Cox, N0UK) Date: Tue, 14 Apr 2020 12:30:29 -0500 Subject: [Elecraft] PX3 acrylic scratch removal In-Reply-To: References: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> Message-ID: Thanks Alan and Mike for the two suggestions. And, yes Mike, you?re correct about adTHANKSvance! From a.durbin at msn.com Tue Apr 14 13:35:53 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 14 Apr 2020 17:35:53 +0000 Subject: [Elecraft] PX3 acrylic scratch removal Message-ID: "Can anyone recommend a safe polish or other to aid in buffing out a minor surface scratch on the plastic (Perspex/acrylic?) screen cover" Meguiar's Mirror Glaze MGH-17. I have used it on aircraft and other transparencies. Deep scratches may require work with increasingly fine abrasives. MGH-17 will remove the marks left by 1200 grit. 73, Andy, k3wyc From ghyoungman at gmail.com Tue Apr 14 13:48:34 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Tue, 14 Apr 2020 13:48:34 -0400 Subject: [Elecraft] PX3 acrylic scratch removal In-Reply-To: References: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> Message-ID: <8DBBD751-C475-44F2-8F07-C0268993D051@gmail.com> The ?standard? that many other radio restorers use, and I use, is Novus Plastic Polish. It comes as a set of two abrasive level liquids and a fine polish. On some tough problems I've successfully used a product called Micro-mesh ? which is a set of cloth/paper abrasives in increasingly fine grits. Usually use Novus, though, unless it's a really deep scratch. Novus is sold on-line by Walmart, tubesandmore.com, and other places. The other obvious option is just to purchase a new acrylic face from Elecraft if it?s a major deep scratch. Grant NQ5T > On Apr 14, 2020, at 1:30 PM, Chris Cox, N0UK wrote: > > Thanks Alan and Mike for the two suggestions. > > And, yes Mike, you?re correct about adTHANKSvance! > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 alan at wilcoxengineering.com Tue Apr 14 13:57:54 2020 From: alan at wilcoxengineering.com (Alan D. Wilcox) Date: Tue, 14 Apr 2020 13:57:54 -0400 Subject: [Elecraft] [K2][K1] Legacy Tuneups, Rescue, Build Services Message-ID: 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 jackbrindle at me.com Tue Apr 14 13:59:25 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 14 Apr 2020 10:59:25 -0700 Subject: [Elecraft] Kpa500 lcd display issue In-Reply-To: References: Message-ID: <862EC349-1215-4940-B368-FFCC2AA43F71@me.com> Andy; Your analysis was correct. Somehow the LCD ADJ value became set to 100. KD5SPX was able to resolve the issue by figuring out the exact keypresses needed to access the menu setting and lower the value. The range of the value is 0 to 100, with the default being 30. This value sets the duty cycle of a PWM in the microcontroller that is connected to the LCD controller?s Contrast input. At 100 the LCD segments will be shown as grey, but the value should be readable, although it may be difficult to distinguish the exact segments that should be illuminated. There is not much contrast between the grey segments and the black ones. The easiest way to correct this situation is to reset the parameters by holding the EDIT button while powering up the KPA500 using the front panel button. Wayne did find a way without resetting the parameters. My hat?s off to his tenacity in succeeding with that method. 73! Jack, W6FB > On Apr 14, 2020, at 10:25 AM, Andy Durbin wrote: > > Given that the "test pattern" may be caused by an extreme LCD contrast setting I'd suggest checking the contrast voltage that is derived from PWM signal VCONTRAST. Contrast voltage is available of "TP2" which is connected to LCD pin 55 (VLCD). > > The schematic shows VLCD range is 3 - 6.5 V. I see a good display with LCD ADJ set anywhere between 0 and 30 so I would guess VLCD between 3 V and 4 V would give a readable display. > > 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 jackbrindle at me.com From a.durbin at msn.com Tue Apr 14 14:11:14 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 14 Apr 2020 18:11:14 +0000 Subject: [Elecraft] Kpa500 lcd display issue In-Reply-To: <862EC349-1215-4940-B368-FFCC2AA43F71@me.com> References: , <862EC349-1215-4940-B368-FFCC2AA43F71@me.com> Message-ID: "At 100 the LCD segments will be shown as grey, but the value should be readable, although it may be difficult to distinguish the exact segments that should be illuminated. There is not much contrast between the grey segments and the black ones." While I was experimenting with contrast settings I found that the KPA500 display is very sensitive to viewing angle. My KPA500 is mounted low and right of my normal eye position. From that viewing angle 100 gives all bars on and no possibility of reading the actual displayed value. However, I found that by getting down on the floor so I could view the display from below, the displayed value could easily be read. So, next time this happens to someone, view the display at an extreme angle from below and selection of the appropriate menu item should be easy. I always enjoy learning from other people's problems. So much better than learning from my own. 73, Andy, k3wyc From ardrhi at gmail.com Tue Apr 14 14:25:30 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Tue, 14 Apr 2020 14:25:30 -0400 Subject: [Elecraft] PX3 acrylic scratch removal In-Reply-To: <8DBBD751-C475-44F2-8F07-C0268993D051@gmail.com> References: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> <8DBBD751-C475-44F2-8F07-C0268993D051@gmail.com> Message-ID: I'll second Grant on Novus. I bought their 7100 kit from Amazon, and a set of graduated polishing papers for really fine polishing. The Novus 7100 kit is about $22 at Amazon: https://www.amazon.com/gp/product/B002UCYRZU/ The Zona 37-948 3M Wet/Dry Polishing Paper is about $14 at Amazon: https://www.amazon.com/gp/product/B001BHGC7G/ 73, Gwen, NG3P On Tue, Apr 14, 2020 at 1:49 PM Grant Youngman wrote: > The ?standard? that many other radio restorers use, and I use, is Novus > Plastic Polish. It comes as a set of two abrasive level liquids and a fine > polish. On some tough problems I've successfully used a product called > Micro-mesh ? which is a set of cloth/paper abrasives in increasingly fine > grits. Usually use Novus, though, unless it's a really deep scratch. > > From nz0tham at gmail.com Tue Apr 14 15:38:22 2020 From: nz0tham at gmail.com (William Carpenter) Date: Tue, 14 Apr 2020 14:38:22 -0500 Subject: [Elecraft] KPA500 problem In-Reply-To: References: Message-ID: Welp, operator error big time. Got an email from Elecraft tech support and the first thing he told me to do was to unplug the RCA keyline and see what happens. AHA! Last Friday I decided to use my IC-7300 instead of my K3 in the SKSS WES contest. Yes, blaspheme I know. The 7300 only has one key jack so I had to unplug the line going to my CW paddles and plug in a straight key. Which means fumbling around in the back of the rig blindly. I accidentally unplugged the RCA plug for the keyline to the KPA500 first. Then with out thinking plugged it into the ALC phono jack which is right next to the Key jack. Which caused the amp to do what it was doing. So I cleaned up the amp - needed some dust blown out - put it back together, hooked it back up and guess what? It works fine. 73, Bill NZ0T On Tue, Apr 14, 2020 at 9:27 AM William Carpenter wrote: > For the second time i about two years my KPA500 is suffering from the low > RX sensitivity in OPR. Transmit is fine with full output ona ll bands. > The last time this happened the culprit was R7 on the PA unit which had > cracked and burned slightly. Elecraft sent me a new R7 very quickly and > for free - the usual great customer service. I installed it and the amp > was fine again. > > It happened again last night so I took the PA unit out this morning. R7 > looks fine and tests fine as do all the associated components. So, I'm at > a loss. The only thing I can think of is that my ugly SMT solder job has > gone bad - is OK with the meter but breaks down under normal voltage and > current. Is that ever an issue with SMT? I don't know mush about SMT > stuff. > > I have an email sent to Elecraft service so hope to hear from them > sometime. Not sure how responsive they can be in lockdown. > > I should mention this amp was purchased as a new kit in 2016. > Any input is appreciated! Especially as to what may be causing this to > happen > > 73, Bill NZ0T > From Lyn at LNAINC.com Tue Apr 14 16:29:34 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 14 Apr 2020 15:29:34 -0500 Subject: [Elecraft] KPA500 problem In-Reply-To: References: Message-ID: <022501d6129b$691b5c80$3b521580$@LNAINC.com> Bill - There's something about having all your gear lined up nicely in the shack, and then having to unexpectedly get to a rear panel connector. I hate when that happens. So I finally have everything on a 3-high shelving unit that can be pivoted to allow me access to all the rear panels and cables (neatly bundled and labeled). The KPA500 holds down the lower right shelf, which serves nicely as the pivot point. The other end of that shelf is an IC-7300, so don't feel bad. You've given it great reports on 160 meters. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of William Carpenter Sent: Tuesday, April 14, 2020 2:38 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA500 problem Welp, operator error big time. Got an email from Elecraft tech support and the first thing he told me to do was to unplug the RCA keyline and see what happens. AHA! Last Friday I decided to use my IC-7300 instead of my K3 in the SKSS WES contest. Yes, blaspheme I know. The 7300 only has one key jack so I had to unplug the line going to my CW paddles and plug in a straight key. Which means fumbling around in the back of the rig blindly. I accidentally unplugged the RCA plug for the keyline to the KPA500 first. Then with out thinking plugged it into the ALC phono jack which is right next to the Key jack. Which caused the amp to do what it was doing. So I cleaned up the amp - needed some dust blown out - put it back together, hooked it back up and guess what? It works fine. 73, Bill NZ0T On Tue, Apr 14, 2020 at 9:27 AM William Carpenter wrote: > For the second time i about two years my KPA500 is suffering from the low > RX sensitivity in OPR. Transmit is fine with full output ona ll bands. > The last time this happened the culprit was R7 on the PA unit which had > cracked and burned slightly. Elecraft sent me a new R7 very quickly and > for free - the usual great customer service. I installed it and the amp > was fine again. > > It happened again last night so I took the PA unit out this morning. R7 > looks fine and tests fine as do all the associated components. So, I'm at > a loss. The only thing I can think of is that my ugly SMT solder job has > gone bad - is OK with the meter but breaks down under normal voltage and > current. Is that ever an issue with SMT? I don't know mush about SMT > stuff. > > I have an email sent to Elecraft service so hope to hear from them > sometime. Not sure how responsive they can be in lockdown. > > I should mention this amp was purchased as a new kit in 2016. > Any input is appreciated! Especially as to what may be causing this to > happen > > 73, Bill NZ0T > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 keith at elecraft.com Tue Apr 14 16:49:28 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Tue, 14 Apr 2020 13:49:28 -0700 Subject: [Elecraft] chk braker ? In-Reply-To: <20200413070339.52A0D7DA03CF@dd7438.kasserver.com> References: <20200413070339.52A0D7DA03CF@dd7438.kasserver.com> Message-ID: Hi Erwin; You probably have a shorted D12 on the KPA3, and maybe an identical one on the RF board near power connector, D28. These go short from over-voltage. I would check your voltage! These clamp and short at just above 15V. They should be replaced. You can clip out if you need to operate in an emergency, just don't overvoltage the radio without them, very expensive (if even possible) repair will happen. You will have to PULL the KPA3, not just set to not inst. The DC to it is HOT all the time. Keith WE6R Elecraft K3 Tech From dave at nk7z.net Tue Apr 14 17:34:17 2020 From: dave at nk7z.net (Dave Cole) Date: Tue, 14 Apr 2020 14:34:17 -0700 Subject: [Elecraft] KPA500 problem In-Reply-To: <022501d6129b$691b5c80$3b521580$@LNAINC.com> References: <022501d6129b$691b5c80$3b521580$@LNAINC.com> Message-ID: <8e41bbec-57ed-a852-98b3-7a32b6da709e@nk7z.net> Odd you should mention that... I am rebuilding my operating position, and am installing a patch panel... See: https://www.nk7z.net/rf-patch-panel/ For a close up of teh patch panel. I used one of those services that give you the design software, and then build to your spec... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/14/20 1:29 PM, Lyn Norstad wrote: > Bill - > > There's something about having all your gear lined up nicely in the shack, > and then having to unexpectedly get to a rear panel connector. I hate when > that happens. So I finally have everything on a 3-high shelving unit that > can be pivoted to allow me access to all the rear panels and cables (neatly > bundled and labeled). The KPA500 holds down the lower right shelf, which > serves nicely as the pivot point. > > The other end of that shelf is an IC-7300, so don't feel bad. You've given > it great reports on 160 meters. > > 73 > Lyn, W0LEN > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of William Carpenter > Sent: Tuesday, April 14, 2020 2:38 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KPA500 problem > > Welp, operator error big time. Got an email from Elecraft tech support and > the first thing he told me to do was to unplug the RCA keyline and see what > happens. > > AHA! > > Last Friday I decided to use my IC-7300 instead of my K3 in the SKSS WES > contest. Yes, blaspheme I know. The 7300 only has one key jack so I had to > unplug the line going to my CW paddles and plug in a straight key. Which > means fumbling around in the back of the rig blindly. I > accidentally unplugged the RCA plug for the keyline to the KPA500 first. > Then with out thinking plugged it into the ALC phono jack which is right > next to the Key jack. Which caused the amp to do what it was doing. > > So I cleaned up the amp - needed some dust blown out - put it back > together, hooked it back up and guess what? > > It works fine. > > 73, Bill NZ0T > > > On Tue, Apr 14, 2020 at 9:27 AM William Carpenter wrote: > >> For the second time i about two years my KPA500 is suffering from the low >> RX sensitivity in OPR. Transmit is fine with full output ona ll bands. >> The last time this happened the culprit was R7 on the PA unit which had >> cracked and burned slightly. Elecraft sent me a new R7 very quickly and >> for free - the usual great customer service. I installed it and the amp >> was fine again. >> >> It happened again last night so I took the PA unit out this morning. R7 >> looks fine and tests fine as do all the associated components. So, I'm > at >> a loss. The only thing I can think of is that my ugly SMT solder job has >> gone bad - is OK with the meter but breaks down under normal voltage and >> current. Is that ever an issue with SMT? I don't know mush about SMT >> stuff. >> >> I have an email sent to Elecraft service so hope to hear from them >> sometime. Not sure how responsive they can be in lockdown. >> >> I should mention this amp was purchased as a new kit in 2016. >> Any input is appreciated! Especially as to what may be causing this to >> happen >> >> 73, Bill NZ0T >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 dave at nk7z.net > From mike at ve3yf.com Tue Apr 14 18:55:17 2020 From: mike at ve3yf.com (Mike VE3YF) Date: Tue, 14 Apr 2020 22:55:17 +0000 Subject: [Elecraft] Elecraft K3 CNC Knob Message-ID: <53204eaa-7a15-5120-3ae7-d435cdcf9fde@ve3yf.com> Hi: Going out on a limb here, but does anyone have one of the Black Main VFO cnc Knobs that used to be sold by 73cnc before closing business that is not being used anymore. Any info would be greatly appreciated. Tnx -- *73 De Mike* *VE3YF _/http://www.ve3yf.com/_* From a.durbin at msn.com Tue Apr 14 19:40:57 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 14 Apr 2020 23:40:57 +0000 Subject: [Elecraft] Kpa500 lcd display issue In-Reply-To: <862EC349-1215-4940-B368-FFCC2AA43F71@me.com> References: , <862EC349-1215-4940-B368-FFCC2AA43F71@me.com> Message-ID: Hi Jack, Just for future reference - Does loading a previously saved config file restore all settings that were reset by powering up with EDIT pressed? Thanks and 73, Andy, k3wyc From kd5spx at gmail.com Tue Apr 14 20:07:05 2020 From: kd5spx at gmail.com (Wayne Suite) Date: Tue, 14 Apr 2020 19:07:05 -0500 Subject: [Elecraft] scratchs on display Message-ID: I heard that you can use brasso and a soft cloth and lightly apply it by massaging to remove light scratches I would try it on something else 1st to be sure. Wayne Kd5spx From wa2eio at optonline.net Tue Apr 14 20:19:34 2020 From: wa2eio at optonline.net (Ron Manfredi) Date: Tue, 14 Apr 2020 20:19:34 -0400 Subject: [Elecraft] scratchs on display In-Reply-To: References: Message-ID: Novus plastic polish, comes in three grits/coarseness levels. You probably need their #1, or 2 followed by 1. https://www.novuspolish.com/ On 4/14/2020 8:07 PM, Wayne Suite wrote: > I heard that you can use brasso and a soft cloth and lightly apply it by > massaging to remove light scratches I would try it on something else 1st to > be sure. > > Wayne > Kd5spx > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wa2eio at optonline.net > From wa2eio at optonline.net Tue Apr 14 20:20:36 2020 From: wa2eio at optonline.net (Ron Manfredi) Date: Tue, 14 Apr 2020 20:20:36 -0400 Subject: [Elecraft] scratchs on display In-Reply-To: References: Message-ID: <3dba20f5-7561-b2a0-c9c0-7f9de64ac49a@optonline.net> Sorry, I forgot to sign the first post. Novus plastic polish, comes in three grits/coarseness levels. You probably need their #1, or 2 followed by 1. https://www.novuspolish.com/ Ron WA2EIO On 4/14/2020 8:07 PM, Wayne Suite wrote: > I heard that you can use brasso and a soft cloth and lightly apply it by > massaging to remove light scratches I would try it on something else 1st to > be sure. > > Wayne > Kd5spx > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wa2eio at optonline.net > From donwilh at embarqmail.com Tue Apr 14 20:26:11 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 14 Apr 2020 20:26:11 -0400 Subject: [Elecraft] scratchs on display In-Reply-To: References: Message-ID: <59e25152-0f5f-be5c-8488-5027eab63f39@embarqmail.com> I think Brasso is too corse - it will polish metal, but the plastic is much softer. Just my opinion. If the scratches are deep, that may be the way to go, but you will need something less abrasive to polish it. Back in the dark days when I was repairing IBM typewriters, we had some plastic polish, but it worked only slightly better than a bit of oil on a cloth - rub with a bit of pressure and scratches can disappear - as long as the scratches are not deep. The friction does the job. Go to your auto parts store and ask about plastic polish. 73, Don W3FPR On 4/14/2020 8:07 PM, Wayne Suite wrote: > I heard that you can use brasso and a soft cloth and lightly apply it by > massaging to remove light scratches I would try it on something else 1st to > be sure. From RichLentz at cox.net Tue Apr 14 20:37:51 2020 From: RichLentz at cox.net (Rich) Date: Tue, 14 Apr 2020 17:37:51 -0700 (MST) Subject: [Elecraft] K3 Setting Up digital modes on K3 KS3 Message-ID: <1586911071227-0.post@n2.nabble.com> Have decided to play with PSK and FT4 or FT8 (if I can figure what they are) However, I am having trouble setting up all of the various Menu and Config settings to accept the CAT input and the CW or PTT from either HRD or Mix W. I have got the rig to turn on when I start a transmission on MizW, BUT all I hear is a whistle, single tone) on the monitor. Can someone give me som starting settings to get this working. A few years ago it worked on PSK, however I must have made some incorrect settings when I got a Heil Headset with mike. Original K3, then added the sub receiver so it is sort of a KS3 -- Sent from: http://elecraft.365791.n2.nabble.com/ From eric_csuf at hotmail.com Tue Apr 14 21:07:01 2020 From: eric_csuf at hotmail.com (EricJ) Date: Tue, 14 Apr 2020 18:07:01 -0700 Subject: [Elecraft] scratchs on display In-Reply-To: <59e25152-0f5f-be5c-8488-5027eab63f39@embarqmail.com> References: <59e25152-0f5f-be5c-8488-5027eab63f39@embarqmail.com> Message-ID: I've used toothpaste for years to polish plastic. Works fine. No harsh or potentially damaging chemicals. Leaves your rig minty fresh. Eric KE6US On 4/14/2020 5:26 PM, Don Wilhelm wrote: > I think Brasso is too corse - it will polish metal, but the plastic is > much softer.? Just my opinion.? If the scratches are deep, that may be > the way to go, but you will need something less abrasive to polish it. > > Back in the dark days when I was repairing IBM typewriters, we had > some plastic polish, but it worked only slightly better than a bit of > oil on a cloth - rub with a bit of pressure and scratches can > disappear - as long as the scratches are not deep.? The friction does > the job. > > Go to your auto parts store and ask about plastic polish. > > 73, > Don W3FPR > > On 4/14/2020 8:07 PM, Wayne Suite wrote: >> I heard that you can use brasso and a soft cloth and lightly apply it by >> massaging to remove light scratches I would try it on something else >> 1st to >> be sure. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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_csuf at hotmail.com . From va3mw at portcredit.net Tue Apr 14 21:59:54 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 14 Apr 2020 21:59:54 -0400 Subject: [Elecraft] scratchs on display In-Reply-To: <59e25152-0f5f-be5c-8488-5027eab63f39@embarqmail.com> References: <59e25152-0f5f-be5c-8488-5027eab63f39@embarqmail.com> Message-ID: You will find that Colgate Tooth Paste has very fine Ash in it (or, it used to). I was shown that by an Aircraft Military Mechanic and they used it on Canopies. Mike va3mw On Tue, Apr 14, 2020 at 8:27 PM Don Wilhelm wrote: > I think Brasso is too corse - it will polish metal, but the plastic is > much softer. Just my opinion. If the scratches are deep, that may be > the way to go, but you will need something less abrasive to polish it. > > Back in the dark days when I was repairing IBM typewriters, we had some > plastic polish, but it worked only slightly better than a bit of oil on > a cloth - rub with a bit of pressure and scratches can disappear - as > long as the scratches are not deep. The friction does the job. > > Go to your auto parts store and ask about plastic polish. > > 73, > Don W3FPR > > On 4/14/2020 8:07 PM, Wayne Suite wrote: > > I heard that you can use brasso and a soft cloth and lightly apply it by > > massaging to remove light scratches I would try it on something else 1st > to > > be sure. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ghyoungman at gmail.com Tue Apr 14 22:13:54 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Tue, 14 Apr 2020 22:13:54 -0400 Subject: [Elecraft] scratchs on display In-Reply-To: References: <59e25152-0f5f-be5c-8488-5027eab63f39@embarqmail.com> Message-ID: <1A4CC079-F1C4-49BC-9922-1F54FF6A1BBF@gmail.com> i you have DEEP scratches, one or two grades of abrasive won?t do the job. You risk ending up with a ?divot? around the scratch, which can be worse than the scratch. The entire surface in the area of the defect, not just the scratch, needs to be taken down. For small jobs, this, in my opinion, is the best option ? it can take many layers of increasingly fine abrasive to get a smooth, flat, original finish. https://www.aircraftspruce.com/catalog/cspages/micromeshprof.php Grant NQ5T >> >> much softer. Just my opinion. If the scratches are deep, that may be >> the way to go, but you will need something less abrasive to polish it. From jimseignious at cox.net Tue Apr 14 23:19:40 2020 From: jimseignious at cox.net (Jim Seignious) Date: Tue, 14 Apr 2020 22:19:40 -0500 Subject: [Elecraft] K2/K3 PARTS Message-ID: <017301d612d4$b46987f0$1d3c97d0$@cox.net> I looking for a working built, or new old stock DSP unit for the K2.. Also looking for the sub - receiver for a K3S Please let me know if you have information on either.. 73 de Jim W5JVS From marvwheeler at nwlink.com Wed Apr 15 00:53:16 2020 From: marvwheeler at nwlink.com (marvwheeler at nwlink.com) Date: Tue, 14 Apr 2020 21:53:16 -0700 Subject: [Elecraft] K2/K3 PARTS In-Reply-To: <017301d612d4$b46987f0$1d3c97d0$@cox.net> References: <017301d612d4$b46987f0$1d3c97d0$@cox.net> Message-ID: <000001d612e1$c75a1700$560e4500$@nwlink.com> I just recently bought a sub receiver for the K3S from Elecraft. Marv KG7V \ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Jim Seignious Sent: Tuesday, April 14, 2020 8:20 PM To: elecraft at mailman.qth.net Subject: [Elecraft] K2/K3 PARTS I looking for a working built, or new old stock DSP unit for the K2.. Also looking for the sub - receiver for a K3S Please let me know if you have information on either.. 73 de Jim W5JVS ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to marvwheeler at nwlink.com From k2vco.vic at gmail.com Wed Apr 15 01:18:07 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Wed, 15 Apr 2020 08:18:07 +0300 Subject: [Elecraft] KPA500 problem In-Reply-To: <8e41bbec-57ed-a852-98b3-7a32b6da709e@nk7z.net> References: <022501d6129b$691b5c80$3b521580$@LNAINC.com> <8e41bbec-57ed-a852-98b3-7a32b6da709e@nk7z.net> Message-ID: Wow, that is neat! Very impressive. Are you going to make one for the various audio and control circuits as well? I chose to place my operating desk two feet from the wall. I refer to the area behind it as the "cable vault." This solution is cheap in terms of money and effort, but very expensive of space. Of course the panel takes up space on the desk and facing the operator, which is also very valuable. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 15/04/2020 0:34, Dave Cole wrote: > Odd you should mention that...? I am rebuilding my operating position, > and am installing a patch panel...? See: > > https://www.nk7z.net/rf-patch-panel/ > > For a close up of teh patch panel.? I used one of those services that > give you the design software, and then build to your spec... > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources From djwilcox01 at yahoo.com Wed Apr 15 05:44:30 2020 From: djwilcox01 at yahoo.com (David Wilcox) Date: Wed, 15 Apr 2020 05:44:30 -0400 Subject: [Elecraft] scratchs on display In-Reply-To: <1A4CC079-F1C4-49BC-9922-1F54FF6A1BBF@gmail.com> References: <1A4CC079-F1C4-49BC-9922-1F54FF6A1BBF@gmail.com> Message-ID: Check out the various kits for polishing automobile headlamp lenses. They are all made for this type of work. The more expensive kits have more grades of grit. I would start with tooth paste though as I have used it in the last on watch faces with good results, glass and plastic. David J. Wilcox K8WPE?s iPad > On Apr 14, 2020, at 10:17 PM, Grant Youngman wrote: > > ?i you have DEEP scratches, one or two grades of abrasive won?t do the job. You risk ending up with a ?divot? around the scratch, which can be worse than the scratch. The entire surface in the area of the defect, not just the scratch, needs to be taken down. > > For small jobs, this, in my opinion, is the best option ? it can take many layers of increasingly fine abrasive to get a smooth, flat, original finish. > > https://www.aircraftspruce.com/catalog/cspages/micromeshprof.php > > Grant NQ5T > > >>> >>> much softer. Just my opinion. If the scratches are deep, that may be >>> the way to go, but you will need something less abrasive to polish it. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 djwilcox01 at yahoo.com Wed Apr 15 05:44:30 2020 From: djwilcox01 at yahoo.com (David Wilcox) Date: Wed, 15 Apr 2020 05:44:30 -0400 Subject: [Elecraft] scratchs on display In-Reply-To: <1A4CC079-F1C4-49BC-9922-1F54FF6A1BBF@gmail.com> References: <1A4CC079-F1C4-49BC-9922-1F54FF6A1BBF@gmail.com> Message-ID: Check out the various kits for polishing automobile headlamp lenses. They are all made for this type of work. The more expensive kits have more grades of grit. I would start with tooth paste though as I have used it in the last on watch faces with good results, glass and plastic. David J. Wilcox K8WPE?s iPad > On Apr 14, 2020, at 10:17 PM, Grant Youngman wrote: > > ?i you have DEEP scratches, one or two grades of abrasive won?t do the job. You risk ending up with a ?divot? around the scratch, which can be worse than the scratch. The entire surface in the area of the defect, not just the scratch, needs to be taken down. > > For small jobs, this, in my opinion, is the best option ? it can take many layers of increasingly fine abrasive to get a smooth, flat, original finish. > > https://www.aircraftspruce.com/catalog/cspages/micromeshprof.php > > Grant NQ5T > > >>> >>> much softer. Just my opinion. If the scratches are deep, that may be >>> the way to go, but you will need something less abrasive to polish it. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 davidjw1 at cinci.rr.com Wed Apr 15 10:43:49 2020 From: davidjw1 at cinci.rr.com (David Windisch) Date: Wed, 15 Apr 2020 07:43:49 -0700 (MST) Subject: [Elecraft] PX3 acrylic scratch removal In-Reply-To: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> References: <1CE03140-57FC-483F-BAC2-18F22FC3F198@chris.org> Message-ID: <1586961829480-0.post@n2.nabble.com> To all interested: Plain old white tooth-polishing paste, mixed with a small amount of dihydrous monoxide, and patiently rubbed into scratches with a decent moistened chamois, has worked for me on bezels of many kinds, even some auto windows and paint*. Auto polish and clear auto windshield scratch-filler may work with, eg, irreplaceable antique bezels. Hth, and ymmv, naturally. Practice on similar scrap materials first. Brgds, Dave, N3HE * You know, I-don-wanna-do-this-over paint jobs like 50 coats of hand-rubbed candy-apple red lacquer on a '32 Ford roadster or 3-window coupe show car body. ----- Brgds, Dave, N3HE Cincinnati OH -- Sent from: http://elecraft.365791.n2.nabble.com/ From jim at audiosystemsgroup.com Wed Apr 15 13:21:28 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 15 Apr 2020 10:21:28 -0700 Subject: [Elecraft] KPA500 problem In-Reply-To: References: <022501d6129b$691b5c80$3b521580$@LNAINC.com> <8e41bbec-57ed-a852-98b3-7a32b6da709e@nk7z.net> Message-ID: On 4/14/2020 10:18 PM, Victor Rosenthal 4X6GP wrote: > I chose to place my operating desk two feet from the wall. I refer to > the area behind it as the "cable vault." This solution is cheap in terms > of money and effort, but very expensive of space. Yes. I wish I had thought of doing something like this after seeing something similar in N6RO's superstation. My operating position is on shelves attached to the wall behind them, held away from the wall about 2 inches for cables to pass vertically between shelves. That works, but it's a real PITA getting to cables connected to the radios and other gear when something must be removed for service, replacement, or to go into the field for FD or county expeditions. 73, Jim K9YC From nelasat at yahoo.com Wed Apr 15 13:33:41 2020 From: nelasat at yahoo.com (Keith Ennis) Date: Wed, 15 Apr 2020 17:33:41 +0000 (UTC) Subject: [Elecraft] Transverter wanted References: <1484776691.710907.1586972021588.ref@mail.yahoo.com> Message-ID: <1484776691.710907.1586972021588@mail.yahoo.com> 432? Keith, KV5J From donwilh at embarqmail.com Wed Apr 15 13:46:35 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Wed, 15 Apr 2020 13:46:35 -0400 Subject: [Elecraft] KPA500 problem In-Reply-To: References: <022501d6129b$691b5c80$3b521580$@LNAINC.com> <8e41bbec-57ed-a852-98b3-7a32b6da709e@nk7z.net> Message-ID: <806f079c-42d1-d43a-cb94-94a774fd6e36@embarqmail.com> When I built my operating desk, I made the top a full 36 inches deep so the face of the equipment is about 24 inches from the front. I also put the 2 pedestals on appliance dolly wheels so I can roll the desk out for access behind the equipment. There are shelves in the back to hold power supplies and all the other stuff that I don't need to see on a day to day basis. I am fortunate to have a fully equipped woodworking shop and can do that kind of custom furniture design. I built the desk from good oak and it matches the custom trim and cabinets throughout the rest of the house. 73, Don W3FPR On 4/15/2020 1:21 PM, Jim Brown wrote: > On 4/14/2020 10:18 PM, Victor Rosenthal 4X6GP wrote: >> I chose to place my operating desk two feet from the wall. I refer to >> the area behind it as the "cable vault." This solution is cheap in >> terms of money and effort, but very expensive of space. > > Yes. I wish I had thought of doing something like this after seeing > something similar in N6RO's superstation. My operating position is on > shelves attached to the wall behind them, held away from the wall about > 2 inches for cables to pass vertically between shelves. That works, but > it's a real PITA getting to cables connected to the radios and other > gear when something must be removed for service, replacement, or to go > into the field for FD or county expeditions. > From ai4ns.mike at gmail.com Wed Apr 15 14:50:08 2020 From: ai4ns.mike at gmail.com (Mike Short) Date: Wed, 15 Apr 2020 13:50:08 -0500 Subject: [Elecraft] KPA500 problem In-Reply-To: <806f079c-42d1-d43a-cb94-94a774fd6e36@embarqmail.com> References: <022501d6129b$691b5c80$3b521580$@LNAINC.com> <8e41bbec-57ed-a852-98b3-7a32b6da709e@nk7z.net> <806f079c-42d1-d43a-cb94-94a774fd6e36@embarqmail.com> Message-ID: I use a solid core door slab. On Wed, Apr 15, 2020 at 12:47 Don Wilhelm wrote: > When I built my operating desk, I made the top a full 36 inches deep so > the face of the equipment is about 24 inches from the front. I also put > the 2 pedestals on appliance dolly wheels so I can roll the desk out for > access behind the equipment. There are shelves in the back to hold > power supplies and all the other stuff that I don't need to see on a day > to day basis. > > I am fortunate to have a fully equipped woodworking shop and can do that > kind of custom furniture design. I built the desk from good oak and it > matches the custom trim and cabinets throughout the rest of the house. > > 73, > Don W3FPR > > On 4/15/2020 1:21 PM, Jim Brown wrote: > > On 4/14/2020 10:18 PM, Victor Rosenthal 4X6GP wrote: > >> I chose to place my operating desk two feet from the wall. I refer to > >> the area behind it as the "cable vault." This solution is cheap in > >> terms of money and effort, but very expensive of space. > > > > Yes. I wish I had thought of doing something like this after seeing > > something similar in N6RO's superstation. My operating position is on > > shelves attached to the wall behind them, held away from the wall about > > 2 inches for cables to pass vertically between shelves. That works, but > > it's a real PITA getting to cables connected to the radios and other > > gear when something must be removed for service, replacement, or to go > > into the field for FD or county expeditions. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com Wed Apr 15 15:12:23 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Wed, 15 Apr 2020 12:12:23 -0700 Subject: [Elecraft] KPA500 problem In-Reply-To: <806f079c-42d1-d43a-cb94-94a774fd6e36@embarqmail.com> References: <022501d6129b$691b5c80$3b521580$@LNAINC.com> <8e41bbec-57ed-a852-98b3-7a32b6da709e@nk7z.net> <806f079c-42d1-d43a-cb94-94a774fd6e36@embarqmail.com> Message-ID: It's not elegant but I just finished a rack/table using a butcher block top (Home Depot) and angle stock on the front inside of the 2x2 wooden legs to mount the p/s and a repeater I use for IRLP (duplexer later, one pieces at a time).? The table top is stained and matches the height of the desk so there is almost a continuous surface.?? Five coats of poly should suffice to seal it.? More angle stock from the front to back legs will support/share the weight for each item, so it's not entirely held by the front. The K3, P3 and KPA1500 will sit on the desk within reach, just below the 50" monitor (4K TV) mounted to the wall (swing/tilt mount).? The KPA1500 amp p/s will sit on the table top but may end up in the rack later.? The KAT500/KPA500 will be nearby as backup, easily added if needed. The next step is to add copper pipe along the equipment space to behind the desk for equipment bonding to ground, then add a shelf on either side of the monitor to hang speakers, rotor and SteppIR controllers and the control head of a dual band with some books too.? (There is also a small frig and microwave next to the desk.)? Then put a 36x36" piece of plywood on the wall (that wide so it can be well anchored by the 16" on center studs) for dual band, 6M FM radio and perhaps more later. The entire station (and network) is all going to run from a UPS, which only has to last long enough for the generator to kick in (about 40 seconds) so nothing drops out during an outage (except the large amp, on 240V). Most of the wiring will be hidden by desk or monitor, except the space above the table, where they come in from the tower (large conduits, buried in ground). The floor is industrial laminate, the rack and desk have sliders (easily moved when wanted, no wandering).? A computer manages each piece, then I can remote into that computer from the warm house or when traveling. It's a simple station, the 80-6M SteppIR up 60' and an 80/160M Inverted L.? Simple ROCKS! 73, Rick NK7I North Idaho On 4/15/2020 10:46 AM, Don Wilhelm wrote: > When I built my operating desk, I made the top a full 36 inches deep > so the face of the equipment is about 24 inches from the front.? I > also put the 2 pedestals on appliance dolly wheels so I can roll the > desk out for access behind the equipment.? There are shelves in the > back to hold power supplies and all the other stuff that I don't need > to see on a day to day basis. > > I am fortunate to have a fully equipped woodworking shop and can do > that kind of custom furniture design.? I built the desk from good oak > and it matches the custom trim and cabinets throughout the rest of the > house. > > 73, > Don W3FPR > > On 4/15/2020 1:21 PM, Jim Brown wrote: >> On 4/14/2020 10:18 PM, Victor Rosenthal 4X6GP wrote: >>> I chose to place my operating desk two feet from the wall. I refer >>> to the area behind it as the "cable vault." This solution is cheap >>> in terms of money and effort, but very expensive of space. >> >> Yes. I wish I had thought of doing something like this after seeing >> something similar in N6RO's superstation. My operating position is on >> shelves attached to the wall behind them, held away from the wall >> about 2 inches for cables to pass vertically between shelves. That >> works, but it's a real PITA getting to cables connected to the radios >> and other gear when something must be removed for service, >> replacement, or to go into the field for FD or county expeditions. >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rayalbers at gmail.com Wed Apr 15 15:31:23 2020 From: rayalbers at gmail.com (Ray Albers) Date: Wed, 15 Apr 2020 15:31:23 -0400 Subject: [Elecraft] Electrolytic Capacitor failure Message-ID: I could use some knowledge and/or opinions on this subject (Radio/Elecraft related only because it deals with a power supply that powers a K3!) The other day I was about to initiate a call, and as soon as I touched the "dah" paddle the K3 instantly shut off. The cause was that the power supply voltage dropped too low when the radio demanded more current. The power supply is an Astron RS-20A, a big hulking linear supply that I really like. Huge heavy transformer and two series-pass transistors mounted on big heat sinks - thus, quiet acoustically (no cooling fan) and electrically (no RF hash from switching). I have two of these - one that I bought for my new radio when I got back into ham radio after a long absence and the other because I was at a hamfest where someone had a pile of them that he was selling for only $20 each - who could resist? So I trotted out the spare supply and got back on the air. Now to troubleshoot the bad supply. I had trouble with this one about five years ago. The output transistors are plugged into sockets, and on one socket the contacts for the emitter pin had gotten loose, and there was a vicious spiral of heat causing more resistance causing more heat until eventually it actually melted the transistor pin and left a black char on the socket. When I replaced the socket that time, I decided to solder the emitter pins on both transistors. It took me a long time to find the problem this time. Various tests told me the transformer, the full-wave rectifier diodes and the pass transistors were fine. Finally - with some help from hints in a great article about Astron supplies on repeaterbuilder dot com - I figured out that the supply voltage to the regulator board was too low, so there was not enough "oomph" available to drive the output transistors when high current was demanded. This supply voltage comes from a center tapped transformer secondary feeding two small diodes (both of which checked OK) to a 1000uF 35 V electrolytic. Turns out the capacitor was bad. It's a typical aluminum case with blue plastic covering (which I assume to be heat-shrink plastic because of the way it is completely molded around the capacitor.) Replacing it brought the supply voltage up to spec, and now everything works fine. But I was surprised about the capacitor failure. Absolutely no visible signs of anything wrong - no bulging, leaking, etc. And the soldering to the PC board is perfect. So here's my question for the group: What do we know about electrolytic capacitor failures? I know that anyone restoring an old ham transmitter or receiver or BC receiver almost always has to re-cap it, because the ancient electrolytics, which are usually wet electrolytics in chassis-mounted cans, will have gone bad. But this is the first time I've ever had a failure of the more modern type electrolytics. A quick search of capacitor failure on Google shocked me when I read claims in several places that these capacitors are only expected to have a two to five year life!! Can that be? I know I've got lots of radio gear that's way older than that and still working fine. To do this repair, I replaced a capacitor that might only be 5 years old with one that is probably twenty years old! Words of wisdom and enlightenment would be most welcome! 73 Ray K2HYD (K3 #8240, KX-3 #6827) From radiok4ia at gmail.com Wed Apr 15 15:55:31 2020 From: radiok4ia at gmail.com (Buck) Date: Wed, 15 Apr 2020 15:55:31 -0400 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: References: Message-ID: <3e1b2e0d-4494-e1e7-4d45-2a9c2ab2535d@Gmail.com> I don't know that I would run a K3 off a 20A power supply. You're stressing both. Did you mean to say 30A? Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/15/2020 3:31 PM, Ray Albers wrote: > I could use some knowledge and/or opinions on this subject (Radio/Elecraft > related only because it deals with a power supply that powers a K3!) > > The other day I was about to initiate a call, and as soon as I touched the > "dah" paddle the K3 instantly shut off. The cause was that the power > supply voltage dropped too low when the radio demanded more current. > > The power supply is an Astron RS-20A, a big hulking linear supply that I > really like. Huge heavy transformer and two series-pass transistors mounted > on big heat sinks - thus, quiet acoustically (no cooling fan) and > electrically (no RF hash from switching). I have two of these - one that I > bought for my new radio when I got back into ham radio after a long > absence and the other because I was at a hamfest where someone had a pile > of them that he was selling for only $20 each - who could resist? So I > trotted out the spare supply and got back on the air. Now to troubleshoot > the bad supply. > > I had trouble with this one about five years ago. The output transistors > are plugged into sockets, and on one socket the contacts for the emitter > pin had gotten loose, and there was a vicious spiral of heat causing more > resistance causing more heat until eventually it actually melted the > transistor pin and left a black char on the socket. When I replaced the > socket that time, I decided to solder the emitter pins on both transistors. > > It took me a long time to find the problem this time. Various tests told me > the transformer, the full-wave rectifier diodes and the pass transistors > were fine. Finally - with some help from hints in a great article about > Astron supplies on repeaterbuilder dot com - I figured out that the supply > voltage to the regulator board was too low, so there was not enough "oomph" > available to drive the output transistors when high current was demanded. > > This supply voltage comes from a center tapped transformer secondary > feeding two small diodes (both of which checked OK) to a 1000uF 35 V > electrolytic. Turns out the capacitor was bad. It's a typical aluminum case > with blue plastic covering (which I assume to be heat-shrink plastic > because of the way it is completely molded around the capacitor.) > Replacing it brought the supply voltage up to spec, and now everything > works fine. > > But I was surprised about the capacitor failure. Absolutely no visible > signs of anything wrong - no bulging, leaking, etc. And the soldering to > the PC board is perfect. So here's my question for the group: What do we > know about electrolytic capacitor failures? I know that anyone restoring > an old ham transmitter or receiver or BC receiver almost always has to > re-cap it, because the ancient electrolytics, which are usually wet > electrolytics in chassis-mounted cans, will have gone bad. But this is the > first time I've ever had a failure of the more modern type electrolytics. A > quick search of capacitor failure on Google shocked me when I read claims > in several places that these capacitors are only expected to have a two to > five year life!! Can that be? I know I've got lots of radio gear that's > way older than that and still working fine. To do this repair, I replaced a > capacitor that might only be 5 years old with one that is probably twenty > years old! > > Words of wisdom and enlightenment would be most welcome! > > 73 > Ray K2HYD > (K3 #8240, KX-3 #6827) > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 hsherriff at reagan.com Wed Apr 15 15:58:25 2020 From: hsherriff at reagan.com (Harlan Sherriff) Date: Wed, 15 Apr 2020 15:58:25 -0400 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: References: Message-ID: I retired in 2016 after 34 years as the metrology supervisor at a commercial nuclear power plant. I couldn?t count the number of equipment failures due to electrolytic capacitors, WAY TOO MANY. Some brands of equipment had high percentage failures while other brands had low. Seems the manufacture of the CAPACITOR was a better indicator of failure rate. Many equipment manufacturers used capacitors that carried brands from Japan, others used Sprague (which is probably made in Japan as well, but seemed to hold up much better). Leakage current and capacitance value change seemed to be the culprits most of the time. For our ?standards? we added a step to our calibration procedures to check all power supply ripple voltages to insure they were in spec. For all other test equipment, we would do the ripple checks any time the equipment was in the lab for repair. Also, the plant itself had preventative maintenance procedures to energize certain (safety critical) electrolytic capacitors in our warehouse once a year. Sent from my iPhone > On Apr 15, 2020, at 3:33 PM, Ray Albers wrote: > > ?I could use some knowledge and/or opinions on this subject (Radio/Elecraft > related only because it deals with a power supply that powers a K3!) > > The other day I was about to initiate a call, and as soon as I touched the > "dah" paddle the K3 instantly shut off. The cause was that the power > supply voltage dropped too low when the radio demanded more current. > > The power supply is an Astron RS-20A, a big hulking linear supply that I > really like. Huge heavy transformer and two series-pass transistors mounted > on big heat sinks - thus, quiet acoustically (no cooling fan) and > electrically (no RF hash from switching). I have two of these - one that I > bought for my new radio when I got back into ham radio after a long > absence and the other because I was at a hamfest where someone had a pile > of them that he was selling for only $20 each - who could resist? So I > trotted out the spare supply and got back on the air. Now to troubleshoot > the bad supply. > > I had trouble with this one about five years ago. The output transistors > are plugged into sockets, and on one socket the contacts for the emitter > pin had gotten loose, and there was a vicious spiral of heat causing more > resistance causing more heat until eventually it actually melted the > transistor pin and left a black char on the socket. When I replaced the > socket that time, I decided to solder the emitter pins on both transistors. > > It took me a long time to find the problem this time. Various tests told me > the transformer, the full-wave rectifier diodes and the pass transistors > were fine. Finally - with some help from hints in a great article about > Astron supplies on repeaterbuilder dot com - I figured out that the supply > voltage to the regulator board was too low, so there was not enough "oomph" > available to drive the output transistors when high current was demanded. > > This supply voltage comes from a center tapped transformer secondary > feeding two small diodes (both of which checked OK) to a 1000uF 35 V > electrolytic. Turns out the capacitor was bad. It's a typical aluminum case > with blue plastic covering (which I assume to be heat-shrink plastic > because of the way it is completely molded around the capacitor.) > Replacing it brought the supply voltage up to spec, and now everything > works fine. > > But I was surprised about the capacitor failure. Absolutely no visible > signs of anything wrong - no bulging, leaking, etc. And the soldering to > the PC board is perfect. So here's my question for the group: What do we > know about electrolytic capacitor failures? I know that anyone restoring > an old ham transmitter or receiver or BC receiver almost always has to > re-cap it, because the ancient electrolytics, which are usually wet > electrolytics in chassis-mounted cans, will have gone bad. But this is the > first time I've ever had a failure of the more modern type electrolytics. A > quick search of capacitor failure on Google shocked me when I read claims > in several places that these capacitors are only expected to have a two to > five year life!! Can that be? I know I've got lots of radio gear that's > way older than that and still working fine. To do this repair, I replaced a > capacitor that might only be 5 years old with one that is probably twenty > years old! > > Words of wisdom and enlightenment would be most welcome! > > 73 > Ray K2HYD > (K3 #8240, KX-3 #6827) > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 koskojw at hotmail.com Wed Apr 15 16:08:45 2020 From: koskojw at hotmail.com (John Kosko) Date: Wed, 15 Apr 2020 20:08:45 +0000 Subject: [Elecraft] Electrolytic Capacitor failure Message-ID: Two to five year life span sounds a little short to me. I?ve been earning my primary income in electronics for over 60 years and my experience shows that most electrolytic capacitors last between ten and twenty years. But, usually they will show leakage around seals before they fail. I guess it was just your turn to have an odd situation. Expert help on electrolytic capacitors is available on YouTube. Search on ?mr carlsons lab? (without the quote marks). He restores a lot of antique equipment and videos the whole thing. No, I don?t have any monetary connection with Mr. Carlson or his lab. He?s a worthy Elmer in regard to maintaining older equipment. Regards, John Kosko K8TCT (K3S 11718 powered by a 35 year old Sorenson HPD 15-20 switcher set for 13.6VDC with the DC power cable running through 5 turns around a toroid core) Sent from Mail for Windows 10 From jackbrindle at me.com Wed Apr 15 16:42:20 2020 From: jackbrindle at me.com (Jack Brindle) Date: Wed, 15 Apr 2020 13:42:20 -0700 Subject: [Elecraft] Kpa500 lcd display issue In-Reply-To: References: <862EC349-1215-4940-B368-FFCC2AA43F71@me.com> Message-ID: I believe the answer to be yes. It would overwrite the parameters, so any problems in the saved configuration would be restored. Of course, so would all the valid parameters. 73! Jack, W6FB > On Apr 14, 2020, at 4:40 PM, Andy Durbin wrote: > > Hi Jack, > > Just for future reference - Does loading a previously saved config file restore all settings that were reset by powering up with EDIT pressed? > > Thanks and 73, > Andy, k3wyc From josh at voodoolab.com Wed Apr 15 16:48:33 2020 From: josh at voodoolab.com (Josh Fiden) Date: Wed, 15 Apr 2020 13:48:33 -0700 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: References: Message-ID: Very short unless that was a design goal! It?s all about temperature. Operate an 85c electrolytic near 85c and it?s not going to be around long. 73 Josh W6XU Sent from my mobile device > On Apr 15, 2020, at 1:09 PM, John Kosko wrote: > > Two to five year life span sounds a little short to me. From perryrt at gmail.com Wed Apr 15 17:10:51 2020 From: perryrt at gmail.com (Richard Perry) Date: Wed, 15 Apr 2020 16:10:51 -0500 Subject: [Elecraft] scratchs on display Message-ID: Wow - something I know something about! In real life I'm an A&P (aircraft) mechanic, and this sort of scratching is not uncommon on small unpressurized aircraft. Novus is great stuff particularly for painted surfaces, but if you have the time and really want to do clear acrylic "right", get a Micromesh kit. For example, I've used this kit ( https://www.amazon.com/Micro-Mesh-NC-78-1-Acrylic-Restoral-Kit/dp/B00EKLU5QY ) professionally more times than I can count. That said, I'd recommend this for a onetime use ( https://www.amazon.com/SANDING-SHEETS-INTRODUCTORY-Peachtree-Woodworking/dp/B000H6HIK2 ) it's a lot cheaper, but it has all the same grits. Instructions are here: http://micro-surface.com/images/products/inst_88STPinstr.pdf The key to using Micromesh, however, is commitment. When you use the first grit (use a small amount of water and a back and forth motion) it will scare the living bejezzeus out of you, as the whole surface will now be scratched, but just keep going until the original scratches are gone (the surface is uniformly scratched up), then repeat 8 more times with smaller grits. About the third or next to last grit, it will really look good, and by the 9th, it will be optically clear. Anyway, I've found that to work better than Novus for acrylic - the price is about a wash, but MM takes more time. But when you charge by the hour.... ... and that ALL having been said, I'll bet you that the cost of a replacement cover from Elecraft is cheaper still :) Good luck, let me know if I can help. 73 DE AJ0V/Richard >Sorry, I forgot to sign the first post. > >Novus plastic polish, comes in three grits/coarseness levels. You >probably need their #1, or 2 followed by 1. > >https://www.novuspolish.com/ > > >Ron > >WA2EIO > > > >On 4/14/2020 8:07 PM, Wayne Suite wrote: >> I heard that you can use brasso and a soft cloth and lightly apply it by >> massaging to remove light scratches I would try it on something else 1st to >> be sure. >> >> Wayne >> Kd5spx -- Regards - Richard T Perry perryrt at gmail.com From valosin at midtel.net Wed Apr 15 18:47:14 2020 From: valosin at midtel.net (Tom & Barb Valosin) Date: Wed, 15 Apr 2020 18:47:14 -0400 Subject: [Elecraft] display scratches Message-ID: <2e0a3851-b3ce-a7c2-fefd-6d21e5a7a3a6@midtel.net> Back in the "olden days" of my Ham experience, licensed 1963, on a high school students nearly non-existent budget, we used gentle pressure of a clean soft bristled tooth brush and Ipana toothpaste. Sometimes several applications were needed but it did work pretty well on the EICO, HeathKit, RadioShack and my Hammarlund HQ-180A. GENTLE-GENTLE PRESSURE. Tom, WB2KLD From marklgoldberg at gmail.com Wed Apr 15 18:48:03 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Wed, 15 Apr 2020 15:48:03 -0700 Subject: [Elecraft] scratchs on display In-Reply-To: References: Message-ID: It was about $24 with tax last summer, but I was able to pick it up, so tax, but no shipping. 73, Mark W7MLG On Wed, Apr 15, 2020, 2:12 PM Richard Perry wrote: > > ... and that ALL having been said, I'll bet you that the cost of a > replacement cover from Elecraft is cheaper still :) > > > From rmcgraw at blomand.net Wed Apr 15 18:58:43 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Wed, 15 Apr 2020 17:58:43 -0500 Subject: [Elecraft] display scratches In-Reply-To: <2e0a3851-b3ce-a7c2-fefd-6d21e5a7a3a6@midtel.net> References: <2e0a3851-b3ce-a7c2-fefd-6d21e5a7a3a6@midtel.net> Message-ID: <2DA4DE09-9C1B-4597-B479-F5BC783C15FF@blomand.net> A wet finger and Ipana toothpaste was always my approach and solution. Bob, K4TAX Sent from my iPhone > On Apr 15, 2020, at 5:47 PM, Tom & Barb Valosin wrote: > > ?Back in the "olden days" of my Ham experience, licensed 1963, on a high school students nearly non-existent budget, we used gentle pressure of a clean soft bristled tooth brush and Ipana toothpaste. Sometimes several applications were needed but it did work pretty well on the EICO, HeathKit, RadioShack and my Hammarlund HQ-180A. GENTLE-GENTLE PRESSURE. > > Tom, WB2KLD > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 edauer at law.du.edu Wed Apr 15 21:55:21 2020 From: edauer at law.du.edu (Dauer, Edward) Date: Thu, 16 Apr 2020 01:55:21 +0000 Subject: [Elecraft] Effect of KPA1500 Antenna Selection Message-ID: Does anyone know whether the antenna output not selected is shorted somewhere near the output itself, or just left open while the selected output socket is active? I haven't ever seen a schematic; the "Theory of Operation" in the Manual is too oversimplified to answer the question; and although I could measure the resistance across the unselected output, it wouldn't tell me if the connection to ground is near the socket or way upstream past some low-resistance inductor. And a related question, what happens to the two antenna outputs when the power to the amp is off? Are they latching relays or does everything get de-energized and fall to a default open? TIA, Ted, KN1CBR From donovanf at starpower.net Thu Apr 16 01:22:41 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Thu, 16 Apr 2020 01:22:41 -0400 (EDT) Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: Message-ID: <1329075227.4140129.1587014561133.JavaMail.root@starpower.net> Hi Ray, This is probably unrelated to your capacitor failure, but your "big hulking linear supply" is underrated for the K3 unless you run your K3 at less than full output power. The RS-20A might be okay for SSB, but certainly not for RTTY or digital modes at K3 full rated output power. The Astron RS-20A specification: "amperage (continuous) 16 A, intermittent 20A" www.astrondistributors.com/astron-rs-20a-1667.html The K3 manual recommends " 13.8VDC @ 25A continuous duty" and specifies: "13.8 V nominal (11 V min, 15 V max). 17-22 A typical" ftp.elecraft.com/K3S/Manuals%20Downloads/K3S%20Owner's%20man%20A1.pdf 73 Frank W3LPL ----- Original Message ----- From: "Ray Albers" To: elecraft at mailman.qth.net Sent: Wednesday, April 15, 2020 7:31:23 PM Subject: [Elecraft] Electrolytic Capacitor failure I could use some knowledge and/or opinions on this subject (Radio/Elecraft related only because it deals with a power supply that powers a K3!) The other day I was about to initiate a call, and as soon as I touched the "dah" paddle the K3 instantly shut off. The cause was that the power supply voltage dropped too low when the radio demanded more current. The power supply is an Astron RS-20A, a big hulking linear supply that I really like. Huge heavy transformer and two series-pass transistors mounted on big heat sinks - thus, quiet acoustically (no cooling fan) and electrically (no RF hash from switching). I have two of these - one that I bought for my new radio when I got back into ham radio after a long absence and the other because I was at a hamfest where someone had a pile of them that he was selling for only $20 each - who could resist? So I trotted out the spare supply and got back on the air. Now to troubleshoot the bad supply. I had trouble with this one about five years ago. The output transistors are plugged into sockets, and on one socket the contacts for the emitter pin had gotten loose, and there was a vicious spiral of heat causing more resistance causing more heat until eventually it actually melted the transistor pin and left a black char on the socket. When I replaced the socket that time, I decided to solder the emitter pins on both transistors. It took me a long time to find the problem this time. Various tests told me the transformer, the full-wave rectifier diodes and the pass transistors were fine. Finally - with some help from hints in a great article about Astron supplies on repeaterbuilder dot com - I figured out that the supply voltage to the regulator board was too low, so there was not enough "oomph" available to drive the output transistors when high current was demanded. This supply voltage comes from a center tapped transformer secondary feeding two small diodes (both of which checked OK) to a 1000uF 35 V electrolytic. Turns out the capacitor was bad. It's a typical aluminum case with blue plastic covering (which I assume to be heat-shrink plastic because of the way it is completely molded around the capacitor.) Replacing it brought the supply voltage up to spec, and now everything works fine. But I was surprised about the capacitor failure. Absolutely no visible signs of anything wrong - no bulging, leaking, etc. And the soldering to the PC board is perfect. So here's my question for the group: What do we know about electrolytic capacitor failures? I know that anyone restoring an old ham transmitter or receiver or BC receiver almost always has to re-cap it, because the ancient electrolytics, which are usually wet electrolytics in chassis-mounted cans, will have gone bad. But this is the first time I've ever had a failure of the more modern type electrolytics. A quick search of capacitor failure on Google shocked me when I read claims in several places that these capacitors are only expected to have a two to five year life!! Can that be? I know I've got lots of radio gear that's way older than that and still working fine. To do this repair, I replaced a capacitor that might only be 5 years old with one that is probably twenty years old! Words of wisdom and enlightenment would be most welcome! 73 Ray K2HYD (K3 #8240, KX-3 #6827) ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 mike at ve3yf.com Thu Apr 16 05:51:49 2020 From: mike at ve3yf.com (Mike VE3YF) Date: Thu, 16 Apr 2020 09:51:49 +0000 Subject: [Elecraft] Elecraft K3 CNC Knob In-Reply-To: <53204eaa-7a15-5120-3ae7-d435cdcf9fde@ve3yf.com> References: <53204eaa-7a15-5120-3ae7-d435cdcf9fde@ve3yf.com> Message-ID: Tnx Charlie -- *73 De Mike* *VE3YF _/http://www.ve3yf.com/_* From carlos.on6cn at gmail.com Thu Apr 16 08:20:23 2020 From: carlos.on6cn at gmail.com (carlos.p) Date: Thu, 16 Apr 2020 05:20:23 -0700 (MST) Subject: [Elecraft] k2 ne602 ic Message-ID: <1587039623320-0.post@n2.nabble.com> hi,there is an smd replacement for u1 ne602in my k2 kit is it possible to use ne612an instead of the smd fixture carlos -- Sent from: http://elecraft.365791.n2.nabble.com/ From gkidder at ilstu.edu Thu Apr 16 08:51:38 2020 From: gkidder at ilstu.edu (George Kidder) Date: Thu, 16 Apr 2020 08:51:38 -0400 Subject: [Elecraft] K3/KAT500/XV integration Message-ID: GM, I am trying to get my K3 - KAT500 combination (which works well alone) to accept the addition of a XV144 (which works well with the K3 alone).? Having to plug and unplug control cables to switch from HF to VHF is a non-starter.? I had hoped to pick of the control for the XV144 from the "AMP" socket on the KAT500, but when this is done, I get the message "turn on KAT500" on the K3 display, and nothing works until the plug is removed from the XV144. I have contacted Support about this, but thought I would also see if the collective wisdom of this group can give any guidance. Thanks for your consideration, George, W3HBM (hunkered down at home in ) Bar Harbor, ME From donwilh at embarqmail.com Thu Apr 16 10:17:49 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 16 Apr 2020 10:17:49 -0400 Subject: [Elecraft] k2 ne602 ic In-Reply-To: <1587039623320-0.post@n2.nabble.com> References: <1587039623320-0.post@n2.nabble.com> Message-ID: Carlos, Yes, you can use the SA612 to replace the SA602. In fact, many SA602s are manufactured as SA612s, but marked as SA602. 73, Don W3FPR On 4/16/2020 8:20 AM, carlos.p wrote: > hi,there is an smd replacement for u1 ne602in my k2 kit > is it possible to use ne612an instead of the smd fixture > carlos > From hamop at protonmail.com Thu Apr 16 10:19:01 2020 From: hamop at protonmail.com (Gill) Date: Thu, 16 Apr 2020 14:19:01 +0000 Subject: [Elecraft] Electrolytic Capacitor failure Message-ID: <6dddeefc-baf9-03b6-ac30-2c0b4b22bff2@protonmail.com> As Harlan pointed out - I was an engineer for the FAA until retirement - We changed electrolytics as part of normal PM's on critical systems usually every 5 years or so. CDE (Cornell Dubilier) indicates expected life (MTBF) of devices operated within rated voltage & temp specs to be about 80-100 thousand hours. Most failures occur quickly around the end of that period. For 24/7 operated systems, that translates to around 8-10 years before rapid EOL failures begin to occur. Electrolytics can be thought of like incandescent lamps - they have a finite useful life and the fail quickly around the end of that time. ESR (Equivalent Series (AC) resistance) increases which reflects in higher ripple currents in power supplies are a main culprit. Check out: https://www.cde.com/resources/technical-papers/reliability.pdf 73 Gill W4RYW From carlos.on6cn at gmail.com Thu Apr 16 10:35:44 2020 From: carlos.on6cn at gmail.com (carlos popelier) Date: Thu, 16 Apr 2020 16:35:44 +0200 Subject: [Elecraft] k2 ne602 ic In-Reply-To: References: <1587039623320-0.post@n2.nabble.com> Message-ID: ok thanks guys carlos Op do 16 apr. 2020 om 16:17 schreef Don Wilhelm : > Carlos, > > Yes, you can use the SA612 to replace the SA602. In fact, many SA602s > are manufactured as SA612s, but marked as SA602. > > 73, > Don W3FPR > > On 4/16/2020 8:20 AM, carlos.p wrote: > > hi,there is an smd replacement for u1 ne602in my k2 kit > > is it possible to use ne612an instead of the smd fixture > > carlos > > > -- mvg carlos popelier regards carlos popelier From d.cutter at ntlworld.com Thu Apr 16 10:38:21 2020 From: d.cutter at ntlworld.com (CUTTER DAVID) Date: Thu, 16 Apr 2020 15:38:21 +0100 (BST) Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <6dddeefc-baf9-03b6-ac30-2c0b4b22bff2@protonmail.com> References: <6dddeefc-baf9-03b6-ac30-2c0b4b22bff2@protonmail.com> Message-ID: <1553518867.4343896.1587047901743@mail2.virginmedia.com> Hello Gill Doing reliability calculations to MIL 217 was very instructive many years ago and it taught me that operating well under the limits extended MTBF a lot. Some military customers instructed that specs were 60% or more degraded to achieve longer service life. What was your experience of that? It amazes me that amateur psus last so long! Then, again, they are rarely continuously operated 24/7. 73 David G3UNA/G6CP > On 16 April 2020 at 15:19 Gill via Elecraft wrote: > > > As Harlan pointed out - I was an engineer for the FAA until retirement - > We changed electrolytics as part of normal PM's on critical systems > usually every 5 years or so. CDE (Cornell Dubilier) indicates expected > life (MTBF) of devices operated within rated voltage & temp specs to be > about 80-100 thousand hours. Most failures occur quickly around the end > of that period. For 24/7 operated systems, that translates to around > 8-10 years before rapid EOL failures begin to occur. Electrolytics can > be thought of like incandescent lamps - they have a finite useful life > and the fail quickly around the end of that time. ESR (Equivalent Series > (AC) resistance) increases which reflects in higher ripple currents in > power supplies are a main culprit. Check out: > https://www.cde.com/resources/technical-papers/reliability.pdf > 73 Gill W4RYW > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 a.durbin at msn.com Thu Apr 16 11:20:11 2020 From: a.durbin at msn.com (Andy Durbin) Date: Thu, 16 Apr 2020 15:20:11 +0000 Subject: [Elecraft] Effect of KPA1500 Antenna Selection Message-ID: KAT500 leaves unselected antenna ports open circuit and defaults to port 1 when power is removed. The relays are not latching. I don't have details for the KPA1500 but the ATU board photos available here - https://fccid.io/UTR-KPA1500 - have high enough resolution to trace the output signal paths. I have been told these photos are of a prototype and may not represent the production configuration. 73, Andy, k3wyc From lmarion at mt.net Thu Apr 16 11:25:48 2020 From: lmarion at mt.net (lmarion) Date: Thu, 16 Apr 2020 09:25:48 -0600 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <6dddeefc-baf9-03b6-ac30-2c0b4b22bff2@protonmail.com> References: <6dddeefc-baf9-03b6-ac30-2c0b4b22bff2@protonmail.com> Message-ID: I also retired from FAA. Maybe the Air Defense Long Range ARSR 4 RADARs , BI-6, MODE-S and dozens of other 24/7 sytems, are not "critical systems". Power supply issues were rare. Some of the most robust supplies I have ever experienced. Every ham shack I have ever seen has at least one bad one under the bench. What destroyed the FAA is fanatical political correctness. 73 Leroy AB7CE -----Original Message----- From: Gill via Elecraft Sent: Thursday, April 16, 2020 8:19 AM To: elecraft at mailman.qth.net Subject: [Elecraft] Electrolytic Capacitor failure As Harlan pointed out - I was an engineer for the FAA until retirement - We changed electrolytics as part of normal PM's on critical systems usually every 5 years or so. CDE (Cornell Dubilier) indicates expected life (MTBF) of devices operated within rated voltage & temp specs to be about 80-100 thousand hours. Most failures occur quickly around the end of that period. For 24/7 operated systems, that translates to around 8-10 years before rapid EOL failures begin to occur. Electrolytics can be thought of like incandescent lamps - they have a finite useful life and the fail quickly around the end of that time. ESR (Equivalent Series (AC) resistance) increases which reflects in higher ripple currents in power supplies are a main culprit. Check out: https://www.cde.com/resources/technical-papers/reliability.pdf 73 Gill W4RYW From Lyn at LNAINC.com Thu Apr 16 12:01:12 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Thu, 16 Apr 2020 11:01:12 -0500 Subject: [Elecraft] display scratches In-Reply-To: <2DA4DE09-9C1B-4597-B479-F5BC783C15FF@blomand.net> References: <2e0a3851-b3ce-a7c2-fefd-6d21e5a7a3a6@midtel.net> <2DA4DE09-9C1B-4597-B479-F5BC783C15FF@blomand.net> Message-ID: <03a101d61408$40a77ae0$c1f670a0$@LNAINC.com> That dates you, Bob. Ipana "died" over 40 years ago. If you still have some ... 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Bob McGraw K4TAX Sent: Wednesday, April 15, 2020 5:59 PM To: Tom & Barb Valosin Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] display scratches A wet finger and Ipana toothpaste was always my approach and solution. Bob, K4TAX Sent from my iPhone > On Apr 15, 2020, at 5:47 PM, Tom & Barb Valosin wrote: > > ?Back in the "olden days" of my Ham experience, licensed 1963, on a high school students nearly non-existent budget, we used gentle pressure of a clean soft bristled tooth brush and Ipana toothpaste. Sometimes several applications were needed but it did work pretty well on the EICO, HeathKit, RadioShack and my Hammarlund HQ-180A. GENTLE-GENTLE PRESSURE. > > Tom, WB2KLD > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 lyn at lnainc.com From jackbrindle at me.com Thu Apr 16 12:58:26 2020 From: jackbrindle at me.com (Jack Brindle) Date: Thu, 16 Apr 2020 09:58:26 -0700 Subject: [Elecraft] K3/KAT500/XV integration In-Reply-To: References: Message-ID: <4B2203FD-8AD8-450C-B93A-5E8899E67FDE@me.com> George; That message occurs because something is loading the Auxbus when the K3 is powered on. Make sure that the KAT500 and the XV144 are both powered up when you turn on the K3. They can be powered on at the same time, but the task needs to be done before the K3 enumerates the Auxbus, which is done in the latter part of its power-up sequence. There may be a further issue with this setup, however. Whenever the KAT500 decides it needs to do a tune, it will disconnect the Key line from its AUXIO output port. This is needed to cause the KPA500 to drop out of transmit. You don?t have a KPA500, but you do have an XV144 connected to that port, which will also drop out of transmit at that time. While you probably won?t see this issue, it is best to use a real AUXIO Y cable (15 pins straight through between all three connectors) to connect both peripherals to your K3. 73! Jack, W6FB > On Apr 16, 2020, at 5:51 AM, George Kidder wrote: > > GM, > > I am trying to get my K3 - KAT500 combination (which works well alone) to accept the addition of a XV144 (which works well with the K3 alone). Having to plug and unplug control cables to switch from HF to VHF is a non-starter. I had hoped to pick of the control for the XV144 from the "AMP" socket on the KAT500, but when this is done, I get the message "turn on KAT500" on the K3 display, and nothing works until the plug is removed from the XV144. > > I have contacted Support about this, but thought I would also see if the collective wisdom of this group can give any guidance. > > Thanks for your consideration, > > George, W3HBM (hunkered down at home in ) Bar Harbor, ME > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Thu Apr 16 13:09:50 2020 From: jackbrindle at me.com (Jack Brindle) Date: Thu, 16 Apr 2020 10:09:50 -0700 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <1329075227.4140129.1587014561133.JavaMail.root@starpower.net> References: <1329075227.4140129.1587014561133.JavaMail.root@starpower.net> Message-ID: <38174F4E-3254-4F0E-A26A-0B0F97D1D215@me.com> If Ray has a K3/10, then the power supply is perfectly fine. The recommendation for that is "13.8VDC @ 6A for K3/10?. There are a lot of K3/10?s in the field. Nothing in his post indicated which transceiver he has. However, if indeed he has a K3/100, then Frank is right (as usual). Ray should probably be using a heftier supply. Margins are important. 73! Jack, W6FB ps Thanks, Frank! > On Apr 15, 2020, at 10:22 PM, donovanf at starpower.net wrote: > > Hi Ray, > > > This is probably unrelated to your capacitor failure, but your > "big hulking linear supply" is underrated for the K3 unless you > run your K3 at less than full output power. The RS-20A might > be okay for SSB, but certainly not for RTTY or digital modes at > K3 full rated output power. > > The Astron RS-20A specification: "amperage (continuous) 16 A, intermittent 20A" > > > www.astrondistributors.com/astron-rs-20a-1667.html > > > The K3 manual recommends " 13.8VDC @ 25A continuous duty" > and specifies: "13.8 V nominal (11 V min, 15 V max). 17-22 A typical" > > > ftp.elecraft.com/K3S/Manuals%20Downloads/K3S%20Owner's%20man%20A1.pdf > > > 73 > Frank > W3LPL > > > > ----- Original Message ----- > > From: "Ray Albers" > To: elecraft at mailman.qth.net > Sent: Wednesday, April 15, 2020 7:31:23 PM > Subject: [Elecraft] Electrolytic Capacitor failure > > I could use some knowledge and/or opinions on this subject (Radio/Elecraft > related only because it deals with a power supply that powers a K3!) > > The other day I was about to initiate a call, and as soon as I touched the > "dah" paddle the K3 instantly shut off. The cause was that the power > supply voltage dropped too low when the radio demanded more current. > > The power supply is an Astron RS-20A, a big hulking linear supply that I > really like. Huge heavy transformer and two series-pass transistors mounted > on big heat sinks - thus, quiet acoustically (no cooling fan) and > electrically (no RF hash from switching). I have two of these - one that I > bought for my new radio when I got back into ham radio after a long > absence and the other because I was at a hamfest where someone had a pile > of them that he was selling for only $20 each - who could resist? So I > trotted out the spare supply and got back on the air. Now to troubleshoot > the bad supply. > > I had trouble with this one about five years ago. The output transistors > are plugged into sockets, and on one socket the contacts for the emitter > pin had gotten loose, and there was a vicious spiral of heat causing more > resistance causing more heat until eventually it actually melted the > transistor pin and left a black char on the socket. When I replaced the > socket that time, I decided to solder the emitter pins on both transistors. > > It took me a long time to find the problem this time. Various tests told me > the transformer, the full-wave rectifier diodes and the pass transistors > were fine. Finally - with some help from hints in a great article about > Astron supplies on repeaterbuilder dot com - I figured out that the supply > voltage to the regulator board was too low, so there was not enough "oomph" > available to drive the output transistors when high current was demanded. > > This supply voltage comes from a center tapped transformer secondary > feeding two small diodes (both of which checked OK) to a 1000uF 35 V > electrolytic. Turns out the capacitor was bad. It's a typical aluminum case > with blue plastic covering (which I assume to be heat-shrink plastic > because of the way it is completely molded around the capacitor.) > Replacing it brought the supply voltage up to spec, and now everything > works fine. > > But I was surprised about the capacitor failure. Absolutely no visible > signs of anything wrong - no bulging, leaking, etc. And the soldering to > the PC board is perfect. So here's my question for the group: What do we > know about electrolytic capacitor failures? I know that anyone restoring > an old ham transmitter or receiver or BC receiver almost always has to > re-cap it, because the ancient electrolytics, which are usually wet > electrolytics in chassis-mounted cans, will have gone bad. But this is the > first time I've ever had a failure of the more modern type electrolytics. A > quick search of capacitor failure on Google shocked me when I read claims > in several places that these capacitors are only expected to have a two to > five year life!! Can that be? I know I've got lots of radio gear that's > way older than that and still working fine. To do this repair, I replaced a > capacitor that might only be 5 years old with one that is probably twenty > years old! > > Words of wisdom and enlightenment would be most welcome! > > 73 > Ray K2HYD > (K3 #8240, KX-3 #6827) > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jackbrindle at me.com From gkidder at ilstu.edu Thu Apr 16 13:11:45 2020 From: gkidder at ilstu.edu (GWK) Date: Thu, 16 Apr 2020 13:11:45 -0400 Subject: [Elecraft] K3/KAT500/XV integration In-Reply-To: <4B2203FD-8AD8-450C-B93A-5E8899E67FDE@me.com> References: <4B2203FD-8AD8-450C-B93A-5E8899E67FDE@me.com> Message-ID: <085a8c4c-456a-fd2f-94c5-540f0c4d0438@ilstu.edu> Jack; In my setup, the XV is connected to 12V, but is not "on" until it is selected by changing the K3 to 2 meters (which, of course, is just what it won't do.) The KAT500 is normally left on 24/7. I do not use the "Auto" selection on the KAT500, so it can't surprise me with an unwanted tune. You think a straight-through (Y) cable will work? I'll have to make one and try, if I can find some DB15's. Thanks for the info, George On 4/16/2020 12:58 PM, Jack Brindle wrote: > [This message came from an external source. If suspicious, report to abuse at ilstu.edu] > > George; > > That message occurs because something is loading the Auxbus when the K3 is powered on. Make sure that the KAT500 and the XV144 are both powered up when you turn on the K3. They can be powered on at the same time, but the task needs to be done before the K3 enumerates the Auxbus, which is done in the latter part of its power-up sequence. > > There may be a further issue with this setup, however. Whenever the KAT500 decides it needs to do a tune, it will disconnect the Key line from its AUXIO output port. This is needed to cause the KPA500 to drop out of transmit. You don?t have a KPA500, but you do have an XV144 connected to that port, which will also drop out of transmit at that time. While you probably won?t see this issue, it is best to use a real AUXIO Y cable (15 pins straight through between all three connectors) to connect both peripherals to your K3. > > 73! > Jack, W6FB > > >> On Apr 16, 2020, at 5:51 AM, George Kidder wrote: >> >> GM, >> >> I am trying to get my K3 - KAT500 combination (which works well alone) to accept the addition of a XV144 (which works well with the K3 alone). Having to plug and unplug control cables to switch from HF to VHF is a non-starter. I had hoped to pick of the control for the XV144 from the "AMP" socket on the KAT500, but when this is done, I get the message "turn on KAT500" on the K3 display, and nothing works until the plug is removed from the XV144. >> >> I have contacted Support about this, but thought I would also see if the collective wisdom of this group can give any guidance. >> >> Thanks for your consideration, >> >> George, W3HBM (hunkered down at home in ) Bar Harbor, ME >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 eric_csuf at hotmail.com Thu Apr 16 13:12:04 2020 From: eric_csuf at hotmail.com (EricJ) Date: Thu, 16 Apr 2020 10:12:04 -0700 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <1553518867.4343896.1587047901743@mail2.virginmedia.com> References: <6dddeefc-baf9-03b6-ac30-2c0b4b22bff2@protonmail.com> <1553518867.4343896.1587047901743@mail2.virginmedia.com> Message-ID: They are rarely operated 24/7, and they aren't usually supervised by career engineers. Most hams are relatively inexperienced hobbyists who may not recognize a problem until it is catastrophic. Someone in this thread already mentioned that nearly all ham shacks have a bad electrolytic lurking under the bench. Eric KE6US On 4/16/2020 7:38 AM, CUTTER DAVID via Elecraft wrote: > Hello Gill > Doing reliability calculations to MIL 217 was very instructive many years ago and it taught me that operating well under the limits extended MTBF a lot. Some military customers instructed that specs were 60% or more degraded to achieve longer service life. What was your experience of that? It amazes me that amateur psus last so long! Then, again, they are rarely continuously operated 24/7. > 73 > David G3UNA/G6CP > >> On 16 April 2020 at 15:19 Gill via Elecraft wrote: >> >> >> As Harlan pointed out - I was an engineer for the FAA until retirement - >> We changed electrolytics as part of normal PM's on critical systems >> usually every 5 years or so. CDE (Cornell Dubilier) indicates expected >> life (MTBF) of devices operated within rated voltage & temp specs to be >> about 80-100 thousand hours. Most failures occur quickly around the end >> of that period. For 24/7 operated systems, that translates to around >> 8-10 years before rapid EOL failures begin to occur. Electrolytics can >> be thought of like incandescent lamps - they have a finite useful life >> and the fail quickly around the end of that time. ESR (Equivalent Series >> (AC) resistance) increases which reflects in higher ripple currents in >> power supplies are a main culprit. Check out: >> https://www.cde.com/resources/technical-papers/reliability.pdf >> 73 Gill W4RYW >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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_csuf at hotmail.com > . From rayalbers at gmail.com Thu Apr 16 13:28:05 2020 From: rayalbers at gmail.com (Ray Albers) Date: Thu, 16 Apr 2020 13:28:05 -0400 Subject: [Elecraft] About my capacitor failure (etc.) issue: Message-ID: Many to all who posted/responded to my recent post about an electrolytic capacitor failure in my power supply. Lots of very interesting reading about peoples' industry experiences - thank you! Several have pointed out that using a 20A supply with my K3/100 is pushing close to (or over!) the limit. Even though I am measuring just 16A at the power level I'm running (and not running anything but the K3 on this supply) I agree that I'm skirting the edges. So even though I've been getting away with it for a long time, this morning I ordered a 35A supply. I'll probably sleep better. 73 Ray K2HYD Virus-free. www.avast.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> From jackbrindle at me.com Thu Apr 16 13:34:50 2020 From: jackbrindle at me.com (Jack Brindle) Date: Thu, 16 Apr 2020 10:34:50 -0700 Subject: [Elecraft] K3/KAT500/XV integration In-Reply-To: <085a8c4c-456a-fd2f-94c5-540f0c4d0438@ilstu.edu> References: <4B2203FD-8AD8-450C-B93A-5E8899E67FDE@me.com> <085a8c4c-456a-fd2f-94c5-540f0c4d0438@ilstu.edu> Message-ID: <19C9F37C-D7C9-47A1-8438-EA9857AE8FAC@me.com> You can try it, but I think the real solution may be to leave the XV powered while the K3 is on. The reason is that the XV has weak pull-up to +5V on its Auxbus line. When the XV is off, that 5V line is actually at 0 volts, which means it is pulling the signal to the common reference. This, along with the microcontroller input also being at that level will unduly load the Auxbus. The answer is either to find a way to disconnect the Auxbus from the XV when it is off, or have the XV powered up whenever the K3 is on. I hope this helps. 73, Jack, W6FB > On Apr 16, 2020, at 10:11 AM, GWK wrote: > > Jack; > > In my setup, the XV is connected to 12V, but is not "on" until it is selected by changing the K3 to 2 meters (which, of course, is just what it won't do.) The KAT500 is normally left on 24/7. I do not use the "Auto" selection on the KAT500, so it can't surprise me with an unwanted tune. > > You think a straight-through (Y) cable will work? I'll have to make one and try, if I can find some DB15's. > > Thanks for the info, > > George > > On 4/16/2020 12:58 PM, Jack Brindle wrote: >> [This message came from an external source. If suspicious, report to abuse at ilstu.edu] >> George; >> That message occurs because something is loading the Auxbus when the K3 is powered on. Make sure that the KAT500 and the XV144 are both powered up when you turn on the K3. They can be powered on at the same time, but the task needs to be done before the K3 enumerates the Auxbus, which is done in the latter part of its power-up sequence. >> There may be a further issue with this setup, however. Whenever the KAT500 decides it needs to do a tune, it will disconnect the Key line from its AUXIO output port. This is needed to cause the KPA500 to drop out of transmit. You don?t have a KPA500, but you do have an XV144 connected to that port, which will also drop out of transmit at that time. While you probably won?t see this issue, it is best to use a real AUXIO Y cable (15 pins straight through between all three connectors) to connect both peripherals to your K3. >> 73! >> Jack, W6FB >>> On Apr 16, 2020, at 5:51 AM, George Kidder wrote: >>> >>> GM, >>> >>> I am trying to get my K3 - KAT500 combination (which works well alone) to accept the addition of a XV144 (which works well with the K3 alone). Having to plug and unplug control cables to switch from HF to VHF is a non-starter. I had hoped to pick of the control for the XV144 from the "AMP" socket on the KAT500, but when this is done, I get the message "turn on KAT500" on the K3 display, and nothing works until the plug is removed from the XV144. >>> >>> I have contacted Support about this, but thought I would also see if the collective wisdom of this group can give any guidance. >>> >>> Thanks for your consideration, >>> >>> George, W3HBM (hunkered down at home in ) Bar Harbor, ME >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 Mike.Carter at unh.edu Thu Apr 16 14:21:34 2020 From: Mike.Carter at unh.edu (Mike K8CN) Date: Thu, 16 Apr 2020 11:21:34 -0700 (MST) Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: References: Message-ID: <1587061294720-0.post@n2.nabble.com> Ray, I reported to this forum (ca. February 2019) a similar, though not identical, problem involving my K3/10 while running from an Astron RS-20A supply. My problem occurred in receive mode rather than transmit mode, which made it a bit more difficult to understand because the current demand for my K3 in receive mode is less than 1 A. After finding no problem using an alternate supply (Astron SS-30 or 12 V battery), I ripped my RS-20A apart to test the various parts on either side of the regulator board. To keep a long story short, the problem turned out to be the large electrolytic filter capacitor at the output of the rectifier block (ahead of the regulator board). It had no external signs of leakage or bulging, but its ESR (equivalent series resistance) had risen to perhaps 2-3 ohms. Finding it hard to believe this ESR could present the DC voltage and current oscillations I observed, I did a SPICE simulation of the transformer/rectifier/filter capacitor circuit with a load designed to draw about 1 A. A good capacitor (ESR = 0.05 ohms) showed hardly any DC voltage ripple, whereas the capacitor with 3 ohms ESR showed huge ripple. I didn't get a chance to put a scope on the actual RS-20A regulator input to confirm the simulation result, but it appears that the regulator circuit developed a low-frequency limit cycle oscillation when loaded by the K3/10 at 1 A current, likely due to the high amplitude voltage ripple at the regulator input caused by the elevated ESR of the filter capacitor. The DC bus voltage reported by the K3 toggled between two values, 13.6 V and 12.7 V. Motto of this story: even if an electrolytic doesn't appear bad externally, suspect increased ESR and replace it. 73, Mike, K8CN -- Sent from: http://elecraft.365791.n2.nabble.com/ From vk4tux at gmail.com Thu Apr 16 14:28:17 2020 From: vk4tux at gmail.com (Adrian) Date: Fri, 17 Apr 2020 04:28:17 +1000 Subject: [Elecraft] KX3 WSJTX Split In-Reply-To: <1586555000653-0.post@n2.nabble.com> References: <1586555000653-0.post@n2.nabble.com> Message-ID: <000001d6141c$ce9465c0$6bbd3140$@gmail.com> The answer for this (Use OmniRig as wsjtx radio rig choice, and setup OmniRig for KX3) came from Carl N4PY ; "Carl, absolutely brilliant thankyou. This is the real answer I have been looking for since discovering the issue, and I have just tested split function here now all ok, retaining the B vfo freq without cat change. I never even realised that OmniRig was in the list until you mentioned it here. Thankyou very much for solving the issue. regards Adrian ... vk4tux On 17/4/20 1:56 am, Carl Moreschi wrote: > You can use OmniRig as the radio type and then set OmniRig for the K3. > That will work. > > Carl Moreschi N4PY > 127 River Moss Way > Hertford, NC 27944 > www.n4py.com " -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of vk4tux Sent: Saturday, 11 April 2020 7:43 AM To: elecraft at mailman.qth.net Subject: [Elecraft] KX3 WSJTX Split I recieved this email from Japan ; "I decode you FT8 on 1840kHz that I send the JPG file to you. JAs are working split RX 1840kHz and TX 1908kHz. Please CQ JA on 1840kHz and RX 1908kHz if possible. The 160m frequency in Japan, 1810-1825kHz and 1907.5-1912.5kHz DATE Sunrise (GMT) in JA3 Apr 07: 20:34Z We hope to see you on 160m soon. TKS 73 Mas JA3FYC" I tried this, however on enable TX the VFO A and B become the same frequency on TX from wsjtx. I have cat ptt and cat control enabled, with rig split set. If I use the mic to key etc, the split remains, however something about wstx causes the VFO's to match on TX losing the split ? vk4tux -- 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 vk4tux at gmail.com From ben.gelb at gmail.com Thu Apr 16 14:30:11 2020 From: ben.gelb at gmail.com (Ben Gelb) Date: Thu, 16 Apr 2020 11:30:11 -0700 Subject: [Elecraft] [K3S] intermittent RF path interruption In-Reply-To: <00F96F4E-A3BC-47EA-B124-4662D42EF9A7@widomaker.com> References: <00F96F4E-A3BC-47EA-B124-4662D42EF9A7@widomaker.com> Message-ID: 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 vk4tux at bigpond.com Thu Apr 16 15:26:08 2020 From: vk4tux at bigpond.com (Adrian) Date: Fri, 17 Apr 2020 05:26:08 +1000 Subject: [Elecraft] KX3 WSJTX Split In-Reply-To: <000001d6141c$ce9465c0$6bbd3140$@gmail.com> References: <1586555000653-0.post@n2.nabble.com> <000001d6141c$ce9465c0$6bbd3140$@gmail.com> Message-ID: <7ec10581-3f9b-ed5d-8084-e67d8470a04b@bigpond.com> I just made the contact with Mas JA3FYC, just now , thanks to Carl http://vk4tux.duckdns.org/KX3/1908_1.jpg http://vk4tux.duckdns.org/KX3/1908_2.jpg On 17/4/20 4:28 am, Adrian wrote: > The answer for this (Use OmniRig as wsjtx radio rig choice, and setup > OmniRig for KX3) came from Carl N4PY ; > > "Carl, absolutely brilliant thankyou. This is the real answer I have been > looking for since discovering the issue, > > and I have just tested split function here now all ok, retaining the B vfo > freq without cat change. > > I never even realised that OmniRig was in the list until you mentioned it > here. > > > Thankyou very much for solving the issue. > > > regards > > > Adrian ... vk4tux > > On 17/4/20 1:56 am, Carl Moreschi wrote: >> You can use OmniRig as the radio type and then set OmniRig for the K3. >> That will work. >> >> Carl Moreschi N4PY >> 127 River Moss Way >> Hertford, NC 27944 >> www.n4py.com " > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of vk4tux > Sent: Saturday, 11 April 2020 7:43 AM > To: elecraft at mailman.qth.net > Subject: [Elecraft] KX3 WSJTX Split > > I recieved this email from Japan ; > > "I decode you FT8 on 1840kHz that I send the JPG file to you. > JAs are working split RX 1840kHz and TX 1908kHz. > Please CQ JA on 1840kHz and RX 1908kHz if possible. > > The 160m frequency in Japan, > 1810-1825kHz and 1907.5-1912.5kHz > > DATE Sunrise (GMT) in JA3 > Apr 07: 20:34Z > > We hope to see you on 160m soon. > TKS 73 > Mas JA3FYC" > > I tried this, however on enable TX the VFO A and B become the same > frequency on TX from wsjtx. > I have cat ptt and cat control enabled, with rig split set. > > If I use the mic to key etc, the split remains, however something about wstx > causes the VFO's to match on TX losing the split ? > > vk4tux > > > > > -- > 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 vk4tux at gmail.com > > From hamop at protonmail.com Thu Apr 16 15:52:38 2020 From: hamop at protonmail.com (Gill) Date: Thu, 16 Apr 2020 19:52:38 +0000 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <1553518867.4343896.1587047901743@mail2.virginmedia.com> References: <6dddeefc-baf9-03b6-ac30-2c0b4b22bff2@protonmail.com> <1553518867.4343896.1587047901743@mail2.virginmedia.com> Message-ID: Hi David, I was a civilian Electrical Engineer with the US Army before the FAA stint. We absolutely required the components used in critical systems to be operated well below the "rated" thresholds. I did HV substation design for places such as Marshall Space Flight Center and Redstone Arsenal - the Army missle development center where the original Redstone rocket was developed to launch the USA's 1st satellite in 1958. I was bombarded by manufacturers wanting us to use the 'latest' electronic versions of the substation protective relaying systems in the 1990's which until then had been totally analog. I refused to allow that then, primarily because they relied on electrolytic capacitors in their 'power supply' & 'transient bypass' systems (internally to the relay). The electrolytic caps were the weak link. A 161Kv substation is no place for components sensitive to transients & guaranteed to fail after 10 yrs or so. Those same caps have destroyed more PC motherboards, HD TV sets, etc. than any other cause. I have a ESR meter which allows one to check PC board caps in circuit - It uses an AC low level voltage which will not cause semiconductors to activate, & which gives ESR values for the caps. We used to try to repair expensive PC boards in the FAA systems rather that "board changing". That way we could keep one good spare & fix the failed one when replaced, keeping it as the spare. Electrolytic Cap's were the main culprits in the failures. Thanks for the reply! 73 Gill From w2up at comcast.net Fri Apr 17 08:58:06 2020 From: w2up at comcast.net (Barry) Date: Fri, 17 Apr 2020 05:58:06 -0700 (MST) Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <1329075227.4140129.1587014561133.JavaMail.root@starpower.net> References: <1329075227.4140129.1587014561133.JavaMail.root@starpower.net> Message-ID: <1587128286548-0.post@n2.nabble.com> I got a kick out of "big hulking supply," too. I have an RS-70 on my K3. It used to power a lot more stuff, but since I downsized my station, it loafs along. Definitely overkill, but it sits under the desk, out of the way, so why not? Oh yeah, my keyer's on it, too, and still doesn't get warm, even at QRQ :-) Barry W2UP donovanf wrote > This is probably unrelated to your capacitor failure, but your > "big hulking linear supply" is underrated for the K3 unless you > run your K3 at less than full output power. The RS-20A might > be okay for SSB, but certainly not for RTTY or digital modes at > K3 full rated output power. > > > > 73 > Frank > W3LPL -- Sent from: http://elecraft.365791.n2.nabble.com/ From john at kk9a.com Fri Apr 17 13:28:40 2020 From: john at kk9a.com (john at kk9a.com) Date: Fri, 17 Apr 2020 12:28:40 -0500 Subject: [Elecraft] Electrolytic Capacitor failure Message-ID: <20200417122840.Horde.bQ0dAIPRs3kPmR1-XynJmGV@www11.qth.com> I also use an Astron RS-70 for my K3Ss. Like you, mine was not purchased for this purpose. It is under my desk so the physical size is not an issue and I have no worries about overloading it. John KK9A Barry w2up at comcast.net I got a kick out of "big hulking supply," too. I have an RS-70 on my K3. It used to power a lot more stuff, but since I downsized my station, it loafs along. Definitely overkill, but it sits under the desk, out of the way, so why not? Oh yeah, my keyer's on it, too, and still doesn't get warm, even at QRQ :-) Barry W2UP From rmcgraw at blomand.net Fri Apr 17 15:49:51 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 17 Apr 2020 14:49:51 -0500 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <20200417122840.Horde.bQ0dAIPRs3kPmR1-XynJmGV@www11.qth.com> References: <20200417122840.Horde.bQ0dAIPRs3kPmR1-XynJmGV@www11.qth.com> Message-ID: I have always been taught and thus have a concern when power supplies of excessive capacity are used for any type of service. If the wiring, in this case,? between the power supply and the radio is #12 or #14 of any length typically supplied by radio companies, should a short occur in the power cable, it is likely the power supply will deliver full current.? That will quickly melt the insulation on the power cable and could cause a fire before the power supply goes into current limit. Now at the same time, each power cable could be fused at the supply to limit the amount of current the supply can drive into the cable.?? I have to say I don't like this idea as the in-line fuse adds a significant amount of resistance and will impact the stability or degree of regulation of the voltage at the radio under a dynamic changing load such as SSB or CW. All of this is no different than when one uses a battery for their radio.? In auto installations, for that reason, it is highly recommended that a fuse or circuit breaker be located at or very near the battery.??? Same applies here where the supply is capable of delivering very high amperage.?? I realize power supplies of this nature have over current protection.?? However, 70 amps through #14 wire will will produce lots of heat and smoke amazingly fast. The correct solution is not so simple in one sense of the word. The better solution is to use properly rated supplies for the required load.?? For that very reason, I have two 30 amp CCS rated supplies on my desk.? One feeds the Elecraft 100 watt transceiver while the other feeds the Tentec Eagle 100 watt transceiver. All of my supplies have both voltage and current meters and they are in a position I can see them when I turn them on.? With supplies which do not have meters, when one turns them on, you never know in advance and get what they deliver.? In my case, I observe the meters BEFORE turning on a radio.? On more than one occasion this has saved a radio due to a power supply regulation failure.? Dumping 24 to 32? volts into a $3000 radios is not very pretty.?? Oh yes, the supplies do have OVP, Over Voltage Protection, but I've seen this fail as well and I've repaired several supplies where this did fail.?? And one doesn't know it has failed until the voltage goes to maximum value.?? Its too late then to find out the OVP circuit has failed.?? A meter would have prevented radio and accessory equipment damage. 73 Bob, K4TAX On 4/17/2020 12:28 PM, john at kk9a.com wrote: > I also use an Astron RS-70 for my K3Ss. Like you, mine was not > purchased for this purpose. It is under my desk so the physical size > is not an issue and I have no worries about overloading it. > > John KK9A > > > Barry w2up at comcast.net > > I got a kick out of "big hulking supply," too.? I have an RS-70 on my > K3.? It > used to power a lot more stuff, but since I downsized my station, it > loafs > along.? Definitely overkill, but it sits under the desk, out of the > way, so > why not?? Oh yeah, my keyer's on it, too, and still doesn't get warm, > even > at QRQ :-) > > Barry W2UP > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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.ab3ap at gmail.com Fri Apr 17 15:55:56 2020 From: mike.ab3ap at gmail.com (Mike Markowski) Date: Fri, 17 Apr 2020 15:55:56 -0400 Subject: [Elecraft] NorCal40 -> K1 rx xtal filter evolution Message-ID: For fun, I thought I'd make an archeological dig and take a look at how things changed from NorCal 40a to K1 since they're easy to study. Then I realized part of it is not so easy for me. The 40a uses a Cohn filter and I thought I'd run through analysis (not simulation) of it. Again, just for the exercise of it while cooped up during these viral stay-at-home days. However, the data sheets I downloaded for the HC-49 crystal don't seem to have the motional capacitance and inductance. So, two questions arise: (1) I thought these were provided by crystal makers, the experts. Are they expected to be measured or is there some simplification in network analysis that doesn't require them?, and (2) are there Cohn filter tables like there are for Butterworth and Chebyshev? I can't find anything on analysis after a fair bit of googling. Moving on to the K1, receive filter bandwidth is controlled by changing capacitance via varactor diode voltage. But that comes from the DAC and requires probing to determine voltage that in turn sets capacitance for the filter. I can't find much on varactor controlled Cohn filters. So (3), is there a place to read up more on it? Tnx es 73! Mike ab3ap, suffering cabin fever From n6kr at elecraft.com Fri Apr 17 16:15:13 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Fri, 17 Apr 2020 13:15:13 -0700 Subject: [Elecraft] NorCal40 -> K1 rx xtal filter evolution In-Reply-To: References: Message-ID: Hi Mike, I can probably scrounge up the original Lm and other specs for you. Varactor capacitance vs. voltage for the parts I used in the design is readily available on the web. Just search for the part datasheet. Varactor tuning of the filter is great for varying the bandwidth, but it is a compromise in terms of loss and ripple. 73, Wayne N6KR > On Apr 17, 2020, at 12:55 PM, Mike Markowski wrote: > > For fun, I thought I'd make an archeological dig and take a look at how things changed from NorCal 40a to K1 since they're easy to study. Then I realized part of it is not so easy for me. The 40a uses a Cohn filter and I thought I'd run through analysis (not simulation) of it. Again, just for the exercise of it while cooped up during these viral stay-at-home days. > > However, the data sheets I downloaded for the HC-49 crystal don't seem to have the motional capacitance and inductance. So, two questions arise: (1) I thought these were provided by crystal makers, the experts. Are they expected to be measured or is there some simplification in network analysis that doesn't require them?, and (2) are there Cohn filter tables like there are for Butterworth and Chebyshev? I can't find anything on analysis after a fair bit of googling. > > Moving on to the K1, receive filter bandwidth is controlled by changing capacitance via varactor diode voltage. But that comes from the DAC and requires probing to determine voltage that in turn sets capacitance for the filter. I can't find much on varactor controlled Cohn filters. So (3), is there a place to read up more on it? > > Tnx es 73! > Mike ab3ap, suffering cabin fever > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com Fri Apr 17 16:16:21 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Fri, 17 Apr 2020 13:16:21 -0700 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: References: <20200417122840.Horde.bQ0dAIPRs3kPmR1-XynJmGV@www11.qth.com> Message-ID: <63990531-9367-d813-9198-4c29d9d81a7f@gmail.com> I guess I'm fortunate, I've had Astrons running 24/7 for decades without any failure.? A 20A powers my repeater (IRLP node, 25 watt), a 35A power the Elecraft products and I just installed a 60A rack mount to replace them both (all are adjusted to 14.2 for spectral purity plus I can charge LiFePo4 too). Rick NK7I On 4/17/2020 12:49 PM, Bob McGraw K4TAX wrote: > I have always been taught and thus have a concern when power supplies > of excessive capacity are used for any type of service. If the wiring, > in this case,? between the power supply and the radio is #12 or #14 of > any length typically supplied by radio companies, should a short occur > in the power cable, it is likely the power supply will deliver full > current.? That will quickly melt the insulation on the power cable and > could cause a fire before the power supply goes into current limit. > > Now at the same time, each power cable could be fused at the supply to > limit the amount of current the supply can drive into the cable.?? I > have to say I don't like this idea as the in-line fuse adds a > significant amount of resistance and will impact the stability or > degree of regulation of the voltage at the radio under a dynamic > changing load such as SSB or CW. > > All of this is no different than when one uses a battery for their > radio.? In auto installations, for that reason, it is highly > recommended that a fuse or circuit breaker be located at or very near > the battery.??? Same applies here where the supply is capable of > delivering very high amperage.?? I realize power supplies of this > nature have over current protection.?? However, 70 amps through #14 > wire will will produce lots of heat and smoke amazingly fast. > > The correct solution is not so simple in one sense of the word. The > better solution is to use properly rated supplies for the required > load.?? For that very reason, I have two 30 amp CCS rated supplies on > my desk.? One feeds the Elecraft 100 watt transceiver while the other > feeds the Tentec Eagle 100 watt transceiver. > > All of my supplies have both voltage and current meters and they are > in a position I can see them when I turn them on.? With supplies which > do not have meters, when one turns them on, you never know in advance > and get what they deliver.? In my case, I observe the meters BEFORE > turning on a radio.? On more than one occasion this has saved a radio > due to a power supply regulation failure.? Dumping 24 to 32? volts > into a $3000 radios is not very pretty.?? Oh yes, the supplies do have > OVP, Over Voltage Protection, but I've seen this fail as well and I've > repaired several supplies where this did fail.?? And one doesn't know > it has failed until the voltage goes to maximum value.?? Its too late > then to find out the OVP circuit has failed.?? A meter would have > prevented radio and accessory equipment damage. > > 73 > > Bob, K4TAX > > > > On 4/17/2020 12:28 PM, john at kk9a.com wrote: >> I also use an Astron RS-70 for my K3Ss. Like you, mine was not >> purchased for this purpose. It is under my desk so the physical size >> is not an issue and I have no worries about overloading it. >> >> John KK9A >> >> >> Barry w2up at comcast.net >> >> I got a kick out of "big hulking supply," too.? I have an RS-70 on my >> K3.? It >> used to power a lot more stuff, but since I downsized my station, it >> loafs >> along.? Definitely overkill, but it sits under the desk, out of the >> way, so >> why not?? Oh yeah, my keyer's on it, too, and still doesn't get warm, >> even >> at QRQ :-) >> >> Barry W2UP >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com From Lyn at LNAINC.com Fri Apr 17 16:52:00 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Fri, 17 Apr 2020 15:52:00 -0500 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: References: <20200417122840.Horde.bQ0dAIPRs3kPmR1-XynJmGV@www11.qth.com> Message-ID: <010501d614fa$0add40a0$2097c1e0$@LNAINC.com> Currently (no pun intended) I am using an Astron VS35M which gives me a linear, fully variable (both voltage and max current) metered supply. It's a workhorse and the size is perfect for my shack. I also have a decent switching 35 amp supply as a backup. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Bob McGraw K4TAX Sent: Friday, April 17, 2020 2:50 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Electrolytic Capacitor failure All of my supplies have both voltage and current meters and they are in a position I can see them when I turn them on. With supplies which do not have meters, when one turns them on, you never know in advance and get what they deliver. In my case, I observe the meters BEFORE turning on a radio. On more than one occasion this has saved a radio due to a power supply regulation failure. Dumping 24 to 32 volts into a $3000 radios is not very pretty. Oh yes, the supplies do have OVP, Over Voltage Protection, but I've seen this fail as well and I've repaired several supplies where this did fail. And one doesn't know it has failed until the voltage goes to maximum value. Its too late then to find out the OVP circuit has failed. A meter would have prevented radio and accessory equipment damage. 73 Bob, K4TAX From phystad at mac.com Fri Apr 17 17:30:10 2020 From: phystad at mac.com (Phil Hystad) Date: Fri, 17 Apr 2020 14:30:10 -0700 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <010501d614fa$0add40a0$2097c1e0$@LNAINC.com> References: <20200417122840.Horde.bQ0dAIPRs3kPmR1-XynJmGV@www11.qth.com> <010501d614fa$0add40a0$2097c1e0$@LNAINC.com> Message-ID: Contributing to the Astron fan mail? My main shack PS is Astron RS-50M with two RS-35M in backup. I originally had just the two RS-35M supplies but just had to move on up. Never a problem with any of them although the RS-35M supplies are not actively being used at this time. 73, phil, K7PEH > On Apr 17, 2020, at 1:52 PM, Lyn Norstad wrote: > > Currently (no pun intended) I am using an Astron VS35M which gives me a linear, fully variable (both voltage and max current) metered supply. It's a workhorse and the size is perfect for my shack. > > I also have a decent switching 35 amp supply as a backup. > > 73 > Lyn, W0LEN > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Bob McGraw K4TAX > Sent: Friday, April 17, 2020 2:50 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Electrolytic Capacitor failure > > All of my supplies have both voltage and current meters and they are in > a position I can see them when I turn them on. With supplies which do > not have meters, when one turns them on, you never know in advance and > get what they deliver. In my case, I observe the meters BEFORE turning > on a radio. On more than one occasion this has saved a radio due to a > power supply regulation failure. Dumping 24 to 32 volts into a $3000 > radios is not very pretty. Oh yes, the supplies do have OVP, Over > Voltage Protection, but I've seen this fail as well and I've repaired > several supplies where this did fail. And one doesn't know it has > failed until the voltage goes to maximum value. Its too late then to > find out the OVP circuit has failed. A meter would have prevented > radio and accessory equipment damage. > > 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 phystad at mac.com From k3sv at pa.net Fri Apr 17 17:45:11 2020 From: k3sv at pa.net (Bill Gillenwater) Date: Fri, 17 Apr 2020 17:45:11 -0400 Subject: [Elecraft] No High Power on K3 Message-ID: <84351645C10B42009031D10C21DCD91A@BillPC> New to the K3. This is a used K3 but in good shape. I downloaded the current firmware as it was down several levels. The rig has been idle for a few months. The 100 watt board is installed. I went through the parameters trying to set it for high power. However, every time I attempt to adjust power it only goes to 12 watts and then a relay clicks in the rig and no power output. It does TX at the low power level, no problem. Just no high power between the 12 watts and 100. thanks, 73 Bill K3SV From mike.ab3ap at gmail.com Fri Apr 17 17:45:42 2020 From: mike.ab3ap at gmail.com (Mike Markowski) Date: Fri, 17 Apr 2020 17:45:42 -0400 Subject: [Elecraft] NorCal40 -> K1 rx xtal filter evolution In-Reply-To: References: Message-ID: <7ac78436-9ced-57da-0013-f6f369b0a1bb@gmail.com> Thanks, Wayne. If not too much trouble that would be great. Or even a run down of how you got the values. Maybe I'm just looking in the wrong place. And I guess the ripple doesn't matter too much for a cw-only qrp rig? It would be very interesting to read a technical "why we changed this" from rig to rig over time. But I guess that leads to problems with tipping off the competition and being a bit of a time sink, too! 73, Mike ab3ap On 4/17/20 4:15 PM, Wayne Burdick wrote: > Hi Mike, > > I can probably scrounge up the original Lm and other specs for you. > > Varactor capacitance vs. voltage for the parts I used in the design is readily available on the web. Just search for the part datasheet. > > Varactor tuning of the filter is great for varying the bandwidth, but it is a compromise in terms of loss and ripple. > > 73, > Wayne > N6KR > > >> On Apr 17, 2020, at 12:55 PM, Mike Markowski wrote: >> >> For fun, I thought I'd make an archeological dig and take a look at how things changed from NorCal 40a to K1 since they're easy to study. Then I realized part of it is not so easy for me. The 40a uses a Cohn filter and I thought I'd run through analysis (not simulation) of it. Again, just for the exercise of it while cooped up during these viral stay-at-home days. >> >> However, the data sheets I downloaded for the HC-49 crystal don't seem to have the motional capacitance and inductance. So, two questions arise: (1) I thought these were provided by crystal makers, the experts. Are they expected to be measured or is there some simplification in network analysis that doesn't require them?, and (2) are there Cohn filter tables like there are for Butterworth and Chebyshev? I can't find anything on analysis after a fair bit of googling. >> >> Moving on to the K1, receive filter bandwidth is controlled by changing capacitance via varactor diode voltage. But that comes from the DAC and requires probing to determine voltage that in turn sets capacitance for the filter. I can't find much on varactor controlled Cohn filters. So (3), is there a place to read up more on it? >> >> Tnx es 73! >> Mike ab3ap, suffering cabin fever >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 ve9aa at nbnet.nb.ca Fri Apr 17 19:32:20 2020 From: ve9aa at nbnet.nb.ca (Mike Smith VE9AA) Date: Fri, 17 Apr 2020 20:32:20 -0300 Subject: [Elecraft] FW: RAC "Get on the Air for World Amateur Radio Day" Special Event References: <1cc2ce962688ad6bb6db0d414.26485b5dfe.20200417202013.ab9fb2d5d3.11ad4e52@mail46.atl11.rsgsv.net> Message-ID: <004301d61510$717b62e0$547228a0$@nbnet.nb.ca> Hello friends. Although W.A.R.D is not a contest, it is an activity event?..and as a bonus there are downloadable certificates for working the VE/VA/VY "RAC" stations after the event! CU all tmw (I'll personally be on CW) I?ll be part of the VE9RAC distributed (maintaining social distancing thing) Multi Multi ! Mike VE9AA RAC "Get on the Air on World Amateur Radio Day" Special Event is tomorrow! Image of Certificate for RAC "Get on the Air on World Amateur Radio Day" special event For immediate release: RAC ?Get on the Air on World Amateur Radio Day? Special Event is tomorrow: Saturday, April 18 https://www.rac.ca/ward2020/ On Saturday, April 18, 2020 (1200Z to 2359Z), Radio Amateurs of Canada is organizing a special on-air event to celebrate World Amateur Radio Day. Every year on April 18, Radio Amateurs worldwide take to the airwaves in celebration of Amateur Radio and to commemorate the formation of the International Amateur Radio Union (IARU) on April 18, 1925. Radio Amateurs of Canada has decided to hold a new ?Get on the Air on World Amateur Radio Day? special event in which we encourage as many Amateurs as possible to get on the air and contact as many RAC stations as possible. 1) RAC official stations will operate across Canada from 1200Z to 2359Z on April 18. The RAC official station call signs are VA2RAC, VA3RAC, VE1RAC, VE4RAC, VE5RAC, VE6RAC, VE7RAC, VE8RAC, VE9RAC, VO1RAC, VO2RAC, VY0RAC, VY1RAC and VY2RAC. 2) Those contacting one or more of these stations will be eligible for a special commemorative certificate noting their participation in RAC?s Get on the Air on World Amateur Radio Day Event. 3) Participants simply need to complete one or more contacts, on any band and mode, with RAC official stations to earn their certificates. 4) No logs need to be submitted, simply check back on the RAC website after May 1, 2020 and enter your call sign to download your certificate. Note: Starting at 1800Z, VA3RAC will be active in the Ontario QSO Party and will be sending the contest exchange. Stations contacting VA3RAC after 1800Z are encouraged to send their contest exchange in return (state/province/country or Ontario county). Thank you for your continued support and understanding during this time of crisis. Please take care of yourself and your loved ones. Stay safe and, wherever possible, let us help one another during this extraordinary time. For more information on World Amateur Radio Day and the RAC ?Get on the Air on World Amateur Radio Day? special event please visit: https://www.rac.ca/ward2020/ Glenn MacDonell, VE3XRA President, Radio Amateurs of Canada Alan Griffin RAC MarCom Director www.rac.ca 720 Belfast Road, #217 Ottawa, ON K1G 0Z5 613-244-4367, 1- 877-273-8304 raccomms at gmail.com Copyright ? 2020 Radio Amateurs of Canada, All rights reserved. You have subscribed to the "RAC Notifications" list as a membership related transaction with respect to the Radio Amateurs of Canada. Please contact us at the RAC Office if you have any questions. Our mailing address is: Radio Amateurs of Canada 720 Belfast Road Suite 217 Ottawa, ON K1G 0Z5 Canada Add us to your address book unsubscribe from this list update subscription preferences From jim at audiosystemsgroup.com Fri Apr 17 19:52:30 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 17 Apr 2020 16:52:30 -0700 Subject: [Elecraft] No High Power on K3 In-Reply-To: <84351645C10B42009031D10C21DCD91A@BillPC> References: <84351645C10B42009031D10C21DCD91A@BillPC> Message-ID: <567a48d7-2e87-6790-5592-9d425c088567@audiosystemsgroup.com> First thing to check is that the 100W amp is turned on. It's in the second layer (long push) menus. See the manual. If you didn't get a printed copy, download pdf from the website. This generally true of all options. 73, Jim K9YC On 4/17/2020 2:45 PM, Bill Gillenwater wrote: > New to the K3. This is a used K3 but in good shape. I downloaded the current firmware as it was down several levels. From py2kp at uol.com.br Fri Apr 17 19:59:55 2020 From: py2kp at uol.com.br (PY2KP) Date: Fri, 17 Apr 2020 20:59:55 -0300 Subject: [Elecraft] BP2 Error Message-ID: <45513da3-f4b2-8abc-dc89-b4c2e516ee14@uol.com.br> Hello guys Yesterday I was fine, connect my K3 today and there is no audio, the message ERR BP2 appears. Could anyone tell me what it is? everything works, including audio on the phone jack. Thank you for your help 73 Claudio PY2KP From k2te at juno.com Fri Apr 17 20:18:55 2020 From: k2te at juno.com (k2te at juno.com) Date: Sat, 18 Apr 2020 00:18:55 +0000 Subject: [Elecraft] Excessive SWR Faulting KPA500 Message-ID: I discovered a problem this afternoon where the KPA500 is faulting on 20, 17 and 12 meters. Set up here is the K-line, K3/KAT500/KPA500. Everything had been working fine until this point. I get a hard fault (error code 9) on the three bands which means excessive SWR even though it has tuned fine before switching from standby. Antennas: 6BTV vertical and Inverted Vs for 17 and 12. The Vs are fed from a common point. The KPA500 works fine on 80 thru 10 on the 6BTV except 20 of course. I tried turning down the power when on 20 (via the K3 drive) but the SWR runs up and faults. I checked the Elecraft website but no schematics for the KPA500. My guess is the LPF units for the bands in question have gone TU. 73 de Ed From donovanf at starpower.net Fri Apr 17 20:23:10 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 17 Apr 2020 20:23:10 -0400 (EDT) Subject: [Elecraft] Excessive SWR Faulting KPA500 In-Reply-To: Message-ID: <326568310.5132485.1587169390757.JavaMail.root@starpower.net> Hi Ed, What results do you observe when you connect the output of your KPA500 direct to a dummy load? 73 Frank W3LPL ----- Original Message ----- From: k2te at juno.com To: elecraft at mailman.qth.net Sent: Saturday, April 18, 2020 12:18:55 AM Subject: [Elecraft] Excessive SWR Faulting KPA500 I discovered a problem this afternoon where the KPA500 is faulting on 20, 17 and 12 meters. Set up here is the K-line, K3/KAT500/KPA500. Everything had been working fine until this point. I get a hard fault (error code 9) on the three bands which means excessive SWR even though it has tuned fine before switching from standby. Antennas: 6BTV vertical and Inverted Vs for 17 and 12. The Vs are fed from a common point. The KPA500 works fine on 80 thru 10 on the 6BTV except 20 of course. I tried turning down the power when on 20 (via the K3 drive) but the SWR runs up and faults. I checked the Elecraft website but no schematics for the KPA500. My guess is the LPF units for the bands in question have gone TU. 73 de Ed ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 ghyoungman at gmail.com Fri Apr 17 20:28:54 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 17 Apr 2020 20:28:54 -0400 Subject: [Elecraft] BP2 Error In-Reply-To: <45513da3-f4b2-8abc-dc89-b4c2e516ee14@uol.com.br> References: <45513da3-f4b2-8abc-dc89-b4c2e516ee14@uol.com.br> Message-ID: <2FA40ECB-37B2-4661-9E50-E795C595D30B@gmail.com> According to the manual, it?s an error with the KBPF3 bandpass filter board installed on the Main RF Board. It indicates you should uninstall the KBPF3 from the RF board. You could try removing it and plugging it back in a couple of times. It could just be corrosion on the contacts. If that doesn?t solve the problem, I?d get in touch with Elecraft support. Grant NQ5T > On Apr 17, 2020, at 7:59 PM, PY2KP wrote: > > Hello guys > > Yesterday I was fine, connect my K3 today and there is no audio, the message ERR BP2 appears. > Could anyone tell me what it is? everything works, including audio on the phone jack. > Thank you for your help > 73 > > Claudio PY2KP > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 billamader at gmail.com Fri Apr 17 22:03:57 2020 From: billamader at gmail.com (K8TE) Date: Fri, 17 Apr 2020 19:03:57 -0700 (MST) Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: References: <20200417122840.Horde.bQ0dAIPRs3kPmR1-XynJmGV@www11.qth.com> Message-ID: <1587175437377-0.post@n2.nabble.com> Having meters will protect my radio? I doubt that assertion. Most radios today remain connected to their power supplies even when turned off, much like a computer. In the case of a K3, it is always connected to the power supply, even when off. So unless we don't connect the K3 to the power supply until checking the power supply's Voltage, a Voltmeter on the power supply wouldn't do much good. Additionally, when operating the K3 for hours on end, like in a contest, who watches the power supply Voltmeter? I certainly don't. I don't know who would. Instead, I use one of those power distribution devices that shuts down Voltage to the equipment should it rise too high. 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From rmcgraw at blomand.net Fri Apr 17 22:45:34 2020 From: rmcgraw at blomand.net (Bob McGraw) Date: Fri, 17 Apr 2020 21:45:34 -0500 Subject: [Elecraft] Electrolytic Capacitor failure In-Reply-To: <1587175437377-0.post@n2.nabble.com> References: <20200417122840.Horde.bQ0dAIPRs3kPmR1-XynJmGV@www11.qth.com> <1587175437377-0.post@n2.nabble.com> Message-ID: <62f54d30-52f2-8b96-4199-5861a7081e6c@blomand.net> When you turn on your power supply and it shows 26 volts, are you going to turn on your radio??? Thus paying attention to the meters will protect your radio.?? If when operating a contest for hours and you find the output drops off, wouldn't you glance at the meters? As to power distribution devices, every contact and connection in the path adds resistance.? This makes the voltage at the radio vary with load. ? And that variation increases the IMD emitted by your transmitter. I've seen and evaluated several brands of power distribution strips.? All are pure crap!?? Not suitable for the dynamic load presented by a SSB or CW radio during transmit.?? Observe the power supply voltage on your radio during receive.? Then in transmit with 100 watts key down.? If it drops 0.5 volts or more, you have a power distribution problem. It is much better to connect the radio power cable direct to the power supply and put the power distribution strip in a bucket of water and leave it there. 73 Bob, K4TAX On 4/17/2020 9:03 PM, K8TE wrote: > Having meters will protect my radio? I doubt that assertion. > > Most radios today remain connected to their power supplies even when turned > off, much like a computer. In the case of a K3, it is always connected to > the power supply, even when off. So unless we don't connect the K3 to the > power supply until checking the power supply's Voltage, a Voltmeter on the > power supply wouldn't do much good. > > Additionally, when operating the K3 for hours on end, like in a contest, who > watches the power supply Voltmeter? I certainly don't. I don't know who > would. Instead, I use one of those power distribution devices that shuts > down Voltage to the equipment should it rise too high. > > 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 rmcgraw at blomand.net > -- This email has been checked for viruses by AVG. https://www.avg.com From rmcgraw at blomand.net Fri Apr 17 22:50:28 2020 From: rmcgraw at blomand.net (Bob McGraw) Date: Fri, 17 Apr 2020 21:50:28 -0500 Subject: [Elecraft] Excessive SWR Faulting KPA500 In-Reply-To: References: Message-ID: Sounds as though the antenna has failed on those 3 bands.?? I doubt it is the KPA500.?? Check the KPA500 feeding a known good 50 dummy load.??? If it is good there, then it is the antenna.?? If it shows the same results as with the antenna, then it is the amplifier. Also you can bypass the KPA500 to STBY mode and check the system by observing the SWR on the K3. 73 Bob, K4TAX On 4/17/2020 7:18 PM, k2te at juno.com wrote: > I discovered a problem this afternoon where the KPA500 is faulting on 20, > 17 and 12 meters. Set up here is the K-line, K3/KAT500/KPA500. > Everything had been working fine until this point. I get a hard fault > (error code 9) on the three bands which means excessive SWR even though > it has tuned fine before switching from standby. Antennas: 6BTV vertical > and Inverted Vs for 17 and 12. The Vs are fed from a common point. The > KPA500 works fine on 80 thru 10 on the 6BTV except 20 of course. I tried > turning down the power when on 20 (via the K3 drive) but the SWR runs up > and faults. > > I checked the Elecraft website but no schematics for the KPA500. My > guess is the LPF units for the bands in question have gone TU. > > 73 de Ed > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 py2kp at uol.com.br Fri Apr 17 23:36:19 2020 From: py2kp at uol.com.br (PY2KP) Date: Sat, 18 Apr 2020 00:36:19 -0300 Subject: [Elecraft] BP2 Error Message-ID: <54c1c2b1-ccc1-c7b4-729b-ccf05bb61d9a@uol.com.br> Thanks Grant, I will try, does the radio work without this card? 73 Claudio PY2KP From ghyoungman at gmail.com Sat Apr 18 00:06:29 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sat, 18 Apr 2020 00:06:29 -0400 Subject: [Elecraft] BP2 Error In-Reply-To: <54c1c2b1-ccc1-c7b4-729b-ccf05bb61d9a@uol.com.br> References: <54c1c2b1-ccc1-c7b4-729b-ccf05bb61d9a@uol.com.br> Message-ID: <0864A8BB-8500-4848-BF2A-883BBD39CB6B@gmail.com> The KBPF3 (or KBPF3A) is an optional card that provides additional bandpass filters for general coverage receive.. Without that card, you will still have full coverage for the primary amateur bands. Grant NQ5T > On Apr 17, 2020, at 11:36 PM, PY2KP wrote: > > Thanks Grant, I will try, does the radio work without this card? > 73 > > Claudio PY2KP > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 py2kp at uol.com.br Sat Apr 18 08:53:34 2020 From: py2kp at uol.com.br (PY2KP) Date: Sat, 18 Apr 2020 09:53:34 -0300 Subject: [Elecraft] BP2 Error Message-ID: <1af38e4e-827c-0062-3e06-82f391c1a484@uol.com.br> OK, Grant, I already disabled it in the menu and the problem continues, I will try to remove the plate and see if the audio goes back to normal 73 Claudio PY2KP From heinz.baertschi at bluewin.ch Sat Apr 18 10:44:07 2020 From: heinz.baertschi at bluewin.ch (Heinz Baertschi) Date: Sat, 18 Apr 2020 07:44:07 -0700 (MST) Subject: [Elecraft] KX2 sluggish/intermittent VFO display Message-ID: <1587221047614-0.post@n2.nabble.com> A colleague's KX2 has had the following symptom several times after approx. 2 hours of portable operation at ambient temperatures of approx. 20-25 ?C and locations in the shade or in the sun: Sluggish and intermittent VFO display when dialling to a new frequency. The selected frequency then appeared correctly after approx. 0.5-1.5 seconds. Has anyone noticed the same symptom and if so, what had to be done to fix it? Any help would be appreciated? 73 tks, Heinz HB9BCB -- Sent from: http://elecraft.365791.n2.nabble.com/ From tommy58 at hvc.rr.com Sat Apr 18 13:08:54 2020 From: tommy58 at hvc.rr.com (Tommy) Date: Sat, 18 Apr 2020 13:08:54 -0400 Subject: [Elecraft] KX2 sluggish/intermittent VFO display In-Reply-To: <1587221047614-0.post@n2.nabble.com> References: <1587221047614-0.post@n2.nabble.com> Message-ID: ?I have seen the same on my KX2, while dialing it seems to freeze at times for a second or so at a time. Even after being on only a few minutes. Kind of annoying but not too worrying to me. At least for now. Serial # 01927 73 de Tom KB2SMS On 4/18/20 10:44 AM, Heinz Baertschi wrote: > A colleague's KX2 has had the following symptom several times after approx. 2 > hours of portable operation at ambient temperatures of approx. 20-25 ?C and > locations in the shade or in the sun: > > Sluggish and intermittent VFO display when dialling to a new frequency. The > selected frequency then appeared correctly after approx. 0.5-1.5 seconds. > > Has anyone noticed the same symptom and if so, what had to be done to fix > it? > > Any help would be appreciated? > > 73 tks, > Heinz HB9BCB From jim at jtmiller.com Sat Apr 18 14:33:47 2020 From: jim at jtmiller.com (Jim Miller) Date: Sat, 18 Apr 2020 14:33:47 -0400 Subject: [Elecraft] K3s/P3 noise comparisons Message-ID: I'm doing some work on measuring RFI levels on 6m at my QTH. One tool I'm using is the P3 with averaging set to 20 to make for easier reading. With the K3s preamp 2 engaged I read -162dbm on the P3 scale when connected to a 50ohm dummy load. I'm trying to correlate that to the MDS numbers for the K3s. The K3s specification with Pre2 engaged is -145dbm measured in a 500hz bandwidth. The effective bandwidth of the P3 per the P3 manual is Scale/450 which for 5K that I'm using is 11hz. Since noise power scales with the square root of the bandwidth that should result in a ratio of SQRT(45) or 6.7. 10*log(6.7) = 8.2 Adding -162 to 8.2 only brings me to -153db. So it seems I'm missing something. The P3 is telling me the K3s is 8db more sensitive than its specification. What am I missing? Thanks JIm ab3cv From n1al at sonic.net Sat Apr 18 15:46:49 2020 From: n1al at sonic.net (Alan Bloom) Date: Sat, 18 Apr 2020 13:46:49 -0600 Subject: [Elecraft] K3s/P3 noise comparisons In-Reply-To: References: Message-ID: <3a18988faf2ba968d009e7d88aed9c1e@sonic.net> > Since noise power scales with the square root of the bandwidth That may be the source of the error. Noise power scales directly with the bandwidth. (Noise *voltage* scales as the square root of the bandwidth.) Since the P3's effective bandwidth is 11 Hz and the K3 sensitivity is specified for 500 Hz, the P3 should be showing 10 * log (500/11) = 16.5 dB lower than the P3. If the P3 is reading -162 dBm, then that corresponds to -145.5 dBm on the K3, close to the -145 dBm spec. Alan N1AL On 2020-04-18 12:33, Jim Miller wrote: > I'm doing some work on measuring RFI levels on 6m at my QTH. > > One tool I'm using is the P3 with averaging set to 20 to make for easier > reading. > > With the K3s preamp 2 engaged I read -162dbm on the P3 scale when connected > to a 50ohm dummy load. > > I'm trying to correlate that to the MDS numbers for the K3s. > > The K3s specification with Pre2 engaged is -145dbm measured in a 500hz > bandwidth. > > The effective bandwidth of the P3 per the P3 manual is Scale/450 which for > 5K that I'm using is 11hz. > > Since noise power scales with the square root of the bandwidth that > should result in a ratio of SQRT(45) or 6.7. 10*log(6.7) = 8.2 > > Adding -162 to 8.2 only brings me to -153db. > > So it seems I'm missing something. The P3 is telling me the K3s is 8db more > sensitive than its specification. > > What am I missing? > > 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 alan at elecraft.com From k2te at juno.com Sat Apr 18 15:53:06 2020 From: k2te at juno.com (k2te at juno.com) Date: Sat, 18 Apr 2020 19:53:06 +0000 Subject: [Elecraft] Excessive SWR Faulting KPA500 Message-ID: Bob, You mentioned: "Also you can bypass the KPA500 to STBY mode and check the system by observing the SWR on the K3." I think you meant the KAT500 instead of the K3. The K3 has to be bypassed to work with the tuner. Anyway, I have made some progress. I tried running through my dummy load and I got the run-up condition to fault on 17 and 20. I had to run reduced power since the load is only rated for 300W. The odd thing is that I had to use the tuner to make things happy with the load. Thanks to AI4VZ, I have the schematics for the KPA500 and the LPF details. The schematics are from 2011 or so and my gear is from 2017 but I doubt the design changed significantly. After testing with the dummy load, I re-connected to my patch panel only to find that all the settings in the KAT500 were gone. I had to retune from 80 through 10; what a PITA! However, my efforts were rewarded with the amp working fine on CW everywhere except 12 meters. I may have an intermittent on 12 since the best I can do is 2.9:1 SWR after the tuner shuts up. Since both the 12 and 17 meter Vs are off the same feed point, the 17 may be guilty as well; it settles around 1.9:1. As for the amp faulting, I may have an RFI issue. The 6BTV is only six feet from the shack. Another possibility: the fault surfaced when running the amp on FT8. The long duty cycle plus RFI may have done me in. Tnx for your help. 73 de Ed From jim at jtmiller.com Sat Apr 18 16:01:48 2020 From: jim at jtmiller.com (Jim Miller) Date: Sat, 18 Apr 2020 16:01:48 -0400 Subject: [Elecraft] K3s/P3 noise comparisons In-Reply-To: <3a18988faf2ba968d009e7d88aed9c1e@sonic.net> References: <3a18988faf2ba968d009e7d88aed9c1e@sonic.net> Message-ID: Alan You nailed it! Thanks! jim ab3cv On Sat, Apr 18, 2020 at 3:46 PM Alan Bloom wrote: > > Since noise power scales with the square root of the bandwidth > > > > That may be the source of the error. Noise power scales directly with the > bandwidth. (Noise *voltage* scales as the square root of the bandwidth.) > > > Since the P3's effective bandwidth is 11 Hz and the K3 sensitivity is > specified for 500 Hz, the P3 should be showing > > 10 * log (500/11) = 16.5 dB lower than the P3. > > > If the P3 is reading -162 dBm, then that corresponds to -145.5 dBm on the > K3, close to the -145 dBm spec. > > > Alan N1AL > > > > On 2020-04-18 12:33, Jim Miller wrote: > > I'm doing some work on measuring RFI levels on 6m at my QTH. > > One tool I'm using is the P3 with averaging set to 20 to make for easier > reading. > > With the K3s preamp 2 engaged I read -162dbm on the P3 scale when connected > to a 50ohm dummy load. > > I'm trying to correlate that to the MDS numbers for the K3s. > > The K3s specification with Pre2 engaged is -145dbm measured in a 500hz > bandwidth. > > The effective bandwidth of the P3 per the P3 manual is Scale/450 which for > 5K that I'm using is 11hz. > > Since noise power scales with the square root of the bandwidth that > should result in a ratio of SQRT(45) or 6.7. 10*log(6.7) = 8.2 > > Adding -162 to 8.2 only brings me to -153db. > > So it seems I'm missing something. The P3 is telling me the K3s is 8db more > sensitive than its specification. > > What am I missing? > > 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 alan at elecraft.com > > From donovanf at starpower.net Sat Apr 18 17:16:21 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Sat, 18 Apr 2020 17:16:21 -0400 (EDT) Subject: [Elecraft] Excessive SWR Faulting KPA500 In-Reply-To: Message-ID: <1539267559.5402013.1587244581170.JavaMail.root@starpower.net> Hi Ed, At a distance of only six feet to your antenna, perhaps your amplifier is trying to warn you that you may also have a human RF safety issue. 73 Frank W3LPL ----- Original Message ----- From: k2te at juno.com To: rmcgraw at blomand.net Cc: elecraft at mailman.qth.net Sent: Saturday, April 18, 2020 7:53:06 PM Subject: Re: [Elecraft] Excessive SWR Faulting KPA500 Bob, You mentioned: "Also you can bypass the KPA500 to STBY mode and check the system by observing the SWR on the K3." I think you meant the KAT500 instead of the K3. The K3 has to be bypassed to work with the tuner. Anyway, I have made some progress. I tried running through my dummy load and I got the run-up condition to fault on 17 and 20. I had to run reduced power since the load is only rated for 300W. The odd thing is that I had to use the tuner to make things happy with the load. Thanks to AI4VZ, I have the schematics for the KPA500 and the LPF details. The schematics are from 2011 or so and my gear is from 2017 but I doubt the design changed significantly. After testing with the dummy load, I re-connected to my patch panel only to find that all the settings in the KAT500 were gone. I had to retune from 80 through 10; what a PITA! However, my efforts were rewarded with the amp working fine on CW everywhere except 12 meters. I may have an intermittent on 12 since the best I can do is 2.9:1 SWR after the tuner shuts up. Since both the 12 and 17 meter Vs are off the same feed point, the 17 may be guilty as well; it settles around 1.9:1. As for the amp faulting, I may have an RFI issue. The 6BTV is only six feet from the shack. Another possibility: the fault surfaced when running the amp on FT8. The long duty cycle plus RFI may have done me in. Tnx for your help. 73 de Ed ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 jtmiller47 at gmail.com Sat Apr 18 19:38:41 2020 From: jtmiller47 at gmail.com (Jim Miller) Date: Sat, 18 Apr 2020 19:38:41 -0400 Subject: [Elecraft] Quick 6m noise survey Message-ID: For anyone who has a reasonably quiet 6m location, what levels are you seeing on the P3 with Span set to 5khz and averaging set to 20? I get a bit below -150 after rain quiets my powerline noise. -160 is a dummy load. Thanks Jim ab3cv From a.durbin at msn.com Sat Apr 18 20:07:13 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 19 Apr 2020 00:07:13 +0000 Subject: [Elecraft] Excessive SWR Faulting KPA500 Message-ID: "At a distance of only six feet to your antenna, perhaps your amplifier is?trying to warn you that you may also have a human RF safety issue. " Well, do you feel warm.... We do what we must to get a signal out. My 40 m dipole is in the attic of a single story house under an asphalt and fibreglass radome. Yes I have RF in the "shack" and every other room in the house. My choice how high I turn the wick though and that choice is less than 500 W. My "controller" prevents my getting excited and turning the wick up all the way. Antenna is well matched though and KPA500 is happy. The only problems I've had with an unhappy KPA500 were on 20 m. 73, Andy, k3wyc From donovanf at starpower.net Sat Apr 18 20:33:07 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Sat, 18 Apr 2020 20:33:07 -0400 (EDT) Subject: [Elecraft] Excessive SWR Faulting KPA500 In-Reply-To: Message-ID: <1136634145.5441512.1587256387620.JavaMail.root@starpower.net> Hi Andy, A very close 40 meter antenna is much safer than a close 12 or 10 meter antenna See FCC Amateur Radio Regulations: Part 97.13 Restrictions on station location. (c) Before causing or allowing an amateur station to transmit from any place where the operation of the station could cause human exposure to RF electromagnetic field levels in excess of those allowed under ?1.1310 of this chapter, the licensee is required to take certain actions. (1) The licensee must perform the routine RF environmental evaluation prescribed by ?1.1307(b) of this chapter, if the power of the licensee's station exceeds the limits given in the following table: Evaluation required if power in (watts) exceeds: 160m 500 watts 80 m 500 watts 75 m 500 watts 40 m 500 watts 30 m 425 watts 20 m 225 watts 17 m 125 watts 15 m 100 watts 12 m 75 watts 10 m 50 watts (2) If the routine environmental evaluation indicates that the RF electromagnetic fields could exceed the limits contained in ?1.1310 of this chapter in accessible areas, the licensee must take action to prevent human exposure to such RF electromagnetic fields. Further information on evaluating compliance with these limits can be found in the FCC's OET Bulletin Number 65, ?Evaluating Compliance with FCC Guidelines for Human Exposure to Radiofrequency Electromagnetic Fields.? 73 Frank W3LPL ----- Original Message ----- From: "Andy Durbin" To: elecraft at mailman.qth.net Sent: Sunday, April 19, 2020 12:07:13 AM Subject: [Elecraft] Excessive SWR Faulting KPA500 "At a distance of only six feet to your antenna, perhaps your amplifier is trying to warn you that you may also have a human RF safety issue. " Well, do you feel warm.... We do what we must to get a signal out. My 40 m dipole is in the attic of a single story house under an asphalt and fibreglass radome. Yes I have RF in the "shack" and every other room in the house. My choice how high I turn the wick though and that choice is less than 500 W. My "controller" prevents my getting excited and turning the wick up all the way. Antenna is well matched though and KPA500 is happy. The only problems I've had with an unhappy KPA500 were on 20 m. 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 donovanf at starpower.net From a.durbin at msn.com Sat Apr 18 21:02:49 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 19 Apr 2020 01:02:49 +0000 Subject: [Elecraft] Excessive SWR Faulting KPA500 In-Reply-To: <1136634145.5441512.1587256387620.JavaMail.root@starpower.net> References: , <1136634145.5441512.1587256387620.JavaMail.root@starpower.net> Message-ID: "A very close 40 meter antenna is much safer than a close 12 or 10 meter antenna " I used to teach the RF safety class for our club's extra and general course students. Most people in the Extra course were already General and almost none of them had ever conducted an RF safety evaluation. I don't think any of the Extra student even knew what an RF safety evaluation was. A concern for my station is that my roof mounted 2 ele SteppIR can be pointed directly into my neighbor's 2 story house. Good thing there is little DX to chase directly north of my QTH. Andy, k3wyc From ve3nr at bell.net Sat Apr 18 21:29:54 2020 From: ve3nr at bell.net (Bert) Date: Sat, 18 Apr 2020 21:29:54 -0400 Subject: [Elecraft] Excessive SWR Faulting KPA500 In-Reply-To: <1136634145.5441512.1587256387620.JavaMail.root@starpower.net> References: <1136634145.5441512.1587256387620.JavaMail.root@starpower.net> Message-ID: <069297a5-6ef8-b301-66e3-973da6df9ab5@bell.net> Hi guys, Here in Canada we have something called Safety Code 6, which states that a field strength level on any HF frequency over 3.16V/m is unsafe in an uncontrolled space. On a small city lot, close to neighbors, the power you're mentioning will definitely exceed 3.16V/m. What levels to do you have to comply with in the US? Bert VE3NR On 4/18/2020 8:33 PM, donovanf at starpower.net wrote: > Hi Andy, > > > A very close 40 meter antenna is much safer than a close 12 or 10 meter antenna > > > See FCC Amateur Radio Regulations: Part 97.13 Restrictions on station location. > > > (c) Before causing or allowing an amateur station to transmit from any > place where the operation of the station could cause human exposure to > RF electromagnetic field levels in excess of those allowed under ?1.1310 > of this chapter, the licensee is required to take certain actions. > > > (1) The licensee must perform the routine RF environmental evaluation > prescribed by ?1.1307(b) of this chapter, if the power of the licensee's > station exceeds the limits given in the following table: > Evaluation required if power in (watts) exceeds: > 160m 500 watts > 80 m 500 watts > 75 m 500 watts > 40 m 500 watts > 30 m 425 watts > 20 m 225 watts > 17 m 125 watts > 15 m 100 watts > 12 m 75 watts > 10 m 50 watts > > > (2) If the routine environmental evaluation indicates that the RF electromagnetic > fields could exceed the limits contained in ?1.1310 of this chapter in accessible > areas, the licensee must take action to prevent human exposure to such RF > electromagnetic fields. Further information on evaluating compliance with these > limits can be found in the FCC's OET Bulletin Number 65, ?Evaluating > Compliance with FCC Guidelines for Human Exposure to Radiofrequency > Electromagnetic Fields.? > > > 73 > Frank > W3LPL > > ----- Original Message ----- > > From: "Andy Durbin" > To: elecraft at mailman.qth.net > Sent: Sunday, April 19, 2020 12:07:13 AM > Subject: [Elecraft] Excessive SWR Faulting KPA500 > > "At a distance of only six feet to your antenna, perhaps your amplifier is trying to warn you that you may also have a human RF safety issue. " > > Well, do you feel warm.... > > We do what we must to get a signal out. My 40 m dipole is in the attic of a single story house under an asphalt and fibreglass radome. Yes I have RF in the "shack" and every other room in the house. My choice how high I turn the wick though and that choice is less than 500 W. My "controller" prevents my getting excited and turning the wick up all the way. > > Antenna is well matched though and KPA500 is happy. The only problems I've had with an unhappy KPA500 were on 20 m. > > 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 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 ve3nr at bell.net From kevinr at coho.net Sat Apr 18 23:43:33 2020 From: kevinr at coho.net (kevinr) Date: Sat, 18 Apr 2020 20:43:33 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <618fb15b-6b62-9dc1-9d91-60d07b0ae98c@coho.net> Good Evening, ?? The sun has been out each day this week but this morning I awoke to the sound of rain.? The budding leaves grew quickly today.? I heard two new owls and a few other birds following all the new bugs.? Trilliums are popping up throughout the thinned areas.? More elk trails too.? Hiking gets me off of a chair and out of the house while providing the biting flies with a meal. ? The sun may have been out this week but it has not gotten any more active.? SFU seems stuck at or below 70 for months.? There is no mention of solar winds so tomorrow's nets should have quiet bands.? That helps with the noise part of the signal to noise ratio.? One can only hope for a stronger signal component. However, one can never tell if a band is working until they call CQ. 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 joseph.durnal at gmail.com Sun Apr 19 00:41:16 2020 From: joseph.durnal at gmail.com (Joseph M. Durnal) Date: Sun, 19 Apr 2020 00:41:16 -0400 Subject: [Elecraft] No High Power on K3 In-Reply-To: <84351645C10B42009031D10C21DCD91A@BillPC> References: <84351645C10B42009031D10C21DCD91A@BillPC> Message-ID: Have you seen the ERR 12V message? I have an older K3 and ran into a problem where my 100 watt PA wasn't working. It turns out that there is a weak point in the power delivery connector & Elecraft had a fix for it out years ago, it just took a long time for mine to fail. I contacted support and ordered a small kit to fix it, it wasn't too pricy IIRC. Joe NE3R On Fri, Apr 17, 2020 at 5:45 PM Bill Gillenwater wrote: > New to the K3. This is a used K3 but in good shape. I downloaded the > current firmware as it was down several levels. > > The rig has been idle for a few months. > > The 100 watt board is installed. I went through the parameters trying to > set it for high power. However, every time I attempt to adjust power it > only goes to 12 watts and then a relay clicks in the rig and no power > output. > > It does TX at the low power level, no problem. Just no high power between > the 12 watts and 100. > > thanks, 73 > Bill K3SV > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to joseph.durnal at gmail.com > From heinz.baertschi at bluewin.ch Sun Apr 19 06:55:06 2020 From: heinz.baertschi at bluewin.ch (Heinz Baertschi) Date: Sun, 19 Apr 2020 03:55:06 -0700 (MST) Subject: [Elecraft] KX2 sluggish/intermittent VFO display In-Reply-To: References: <1587221047614-0.post@n2.nabble.com> Message-ID: <1587293706794-0.post@n2.nabble.com> Thanks Tom, interesting to know. *When troubleshooting it would still be of great help to know how the KX2 encoder is connected to the main bord - plugged in or soldered?* 73, Heinz HB9BCB Tommy wrote > ?I have seen the same on my KX2, while dialing it seems to freeze at > times for a second or so at a time. Even after being on only a few > minutes. Kind of annoying but not too worrying to me. At least for now. > Serial # 01927 > > 73 de Tom KB2SMS > > > On 4/18/20 10:44 AM, Heinz Baertschi wrote: >> A colleague's KX2 has had the following symptom several times after >> approx. 2 >> hours of portable operation at ambient temperatures of approx. 20-25 ?C >> and >> locations in the shade or in the sun: >> >> Sluggish and intermittent VFO display when dialling to a new frequency. >> The >> selected frequency then appeared correctly after approx. 0.5-1.5 seconds. >> >> Has anyone noticed the same symptom and if so, what had to be done to fix >> it? >> >> Any help would be appreciated? >> >> 73 tks, >> Heinz HB9BCB > ______________________________________________________________ > 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 rthorne at rthorne.net Sun Apr 19 08:40:18 2020 From: rthorne at rthorne.net (Richard Thorne) Date: Sun, 19 Apr 2020 07:40:18 -0500 Subject: [Elecraft] KATxxx Remote Tuner Message-ID: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> Eric/Wayne, Has there been any work done for a potential dedicated remote antenna tuner? A remote tuner that could handle 500 or 1500 watts to match up with amps power wise (Or just a barefoot K3/K4). Maybe a black box between the LAN on the K4 or ACC on the K3 so control signals could be sent to the tuner via the coax. I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. Rich - N5ZC Sent from my iPad From kk7p4dsp at gmail.com Sun Apr 19 10:13:03 2020 From: kk7p4dsp at gmail.com (Lyle Johnson) Date: Sun, 19 Apr 2020 07:13:03 -0700 Subject: [Elecraft] KX2 sluggish/intermittent VFO display In-Reply-To: <1587293706794-0.post@n2.nabble.com> References: <1587293706794-0.post@n2.nabble.com> Message-ID: <7678DE38-0988-411C-BBF3-D8A7C0FC9431@gmail.com> All encoders in the KX2 are soldered you the control panel board. 73, Lyle KK7P Sent from my iPhone > On Apr 19, 2020, at 3:57 AM, Heinz Baertschi wrote: > > ? > Thanks Tom, interesting to know. > > *When troubleshooting it would still be of great help to know how the KX2 > encoder is connected to the main bord - plugged in or soldered?* > > 73, > Heinz HB9BCB > > > > Tommy wrote >> I have seen the same on my KX2, while dialing it seems to freeze at >> times for a second or so at a time. Even after being on only a few >> minutes. Kind of annoying but not too worrying to me. At least for now. >> Serial # 01927 >> >> 73 de Tom KB2SMS >> >> >>> On 4/18/20 10:44 AM, Heinz Baertschi wrote: >>> A colleague's KX2 has had the following symptom several times after >>> approx. 2 >>> hours of portable operation at ambient temperatures of approx. 20-25 ?C >>> and >>> locations in the shade or in the sun: >>> >>> Sluggish and intermittent VFO display when dialling to a new frequency. >>> The >>> selected frequency then appeared correctly after approx. 0.5-1.5 seconds. >>> >>> Has anyone noticed the same symptom and if so, what had to be done to fix >>> it? >>> >>> Any help would be appreciated? >>> >>> 73 tks, >>> Heinz HB9BCB >> ______________________________________________________________ >> 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 kk7p4dsp at gmail.com From ab2tc at arrl.net Sun Apr 19 11:51:30 2020 From: ab2tc at arrl.net (ab2tc) Date: Sun, 19 Apr 2020 08:51:30 -0700 (MST) Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> Message-ID: <1587311490329-0.post@n2.nabble.com> Hi Rich, I totally agree with your last statement about the tuner placement. I can't answer for Eric and Wayne and I am sure they will chime in in due time. I haven't heard of any plans to introduce a weatherproofed version of any of their tuners. But the KAT500 is very easy to remote control and weatherproofing it with a suitable enclosure is not rocket science either. I have been doing this for about as long as the KAT500 has been in existence. My tuner is at the end of a 100' buried LMR400DB cable and the only other cable is 120V power. Communications is WiFI using a WiFi serial server from Lantronix. Then I just use the KAT500 utility for controlling it. There is a few pictures of the installation here: http://ab2tc.com/ I have more pictures and other information, screenshots etc, if you contact me via E-mail. My E-mail address is OK on qrz.com and it is easily guessable anyway, hi. You're mentioning controlling it via the coax. I am sure that using your coax for a MoCa link is possible but it may be more trouble than it is worth. I don't think MoCa bridges capable of withstanding 100's of watts of RF are commercially available. While MoCa doesn't intentionally use HF there might be lots of noise there interfering with your reception. AB2TC - Knut Richard Thorne-4 wrote > Eric/Wayne, > > Has there been any work done for a potential dedicated remote antenna > tuner? > > A remote tuner that could handle 500 or 1500 watts to match up with amps > power wise (Or just a barefoot K3/K4). Maybe a black box between the LAN > on the K4 or ACC on the K3 so control signals could be sent to the tuner > via the coax. > > I?m a firm believer in 50 ohm matched antennas, but if a tuner is required > it needs to be at the feed point. > > Rich - N5ZC > 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 .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 Lyn at LNAINC.com Sun Apr 19 11:52:29 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Sun, 19 Apr 2020 10:52:29 -0500 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> Message-ID: <004901d61662$88fd5c40$9af814c0$@LNAINC.com> Rich - " I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point." While I prefer unmatched antennas fed with very low loss ladder line, I have always felt the tuner should be at the feedpoint of that line. When I added the KPA500, I switched to the KAT500, and it?s not really practical to locate that remotely. As a compromise, I am using a short (maybe 15 feet) length of coax from the KAT to a hybrid balun (1:1 / 4:1) in the attic which connects to the ladder line. I actually notice no difference in performance (everything else remains unchanged). That being said, a ?remote? version of the KAT500 (or a KAT1500) would be of immense interest to me ? so I will follow this thread closely. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Richard Thorne Sent: Sunday, April 19, 2020 7:40 AM To: elecraft at mailman.qth.net Subject: [Elecraft] KATxxx Remote Tuner Eric/Wayne, Has there been any work done for a potential dedicated remote antenna tuner? A remote tuner that could handle 500 or 1500 watts to match up with amps power wise (Or just a barefoot K3/K4). Maybe a black box between the LAN on the K4 or ACC on the K3 so control signals could be sent to the tuner via the coax. I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. Rich - N5ZC Sent from my iPad From kz5d.arts at gmail.com Sun Apr 19 12:35:34 2020 From: kz5d.arts at gmail.com (Art Suberbielle) Date: Sun, 19 Apr 2020 11:35:34 -0500 Subject: [Elecraft] K-4 capabilities Message-ID: As we all await the arrival of the K-4, I'm wondering if the radio will "remember" all of the settings per band. Specifically, I use different RF settings per band and have to remember to reset the RF as I go from 160 to 20, for example. Will these settings and AF gain, etc be recalled per band? Wayne, et al, tell us more about what you've been doing on the software design side of the K-4 while "on vacation" at home? 73, Art KZ5D From ab2tc at arrl.net Sun Apr 19 12:49:40 2020 From: ab2tc at arrl.net (ab2tc) Date: Sun, 19 Apr 2020 09:49:40 -0700 (MST) Subject: [Elecraft] KX2 sluggish/intermittent VFO display In-Reply-To: <7678DE38-0988-411C-BBF3-D8A7C0FC9431@gmail.com> References: <1587221047614-0.post@n2.nabble.com> <1587293706794-0.post@n2.nabble.com> <7678DE38-0988-411C-BBF3-D8A7C0FC9431@gmail.com> Message-ID: <1587314980148-0.post@n2.nabble.com> Hi, This doesn't sound like an encoder problem to me. Encoders have no memory, so if the radio eventually responds to the encoder pulses and displays the correct frequency after a delay, that delay must have occurred in the microcontroller itself or possibly in the display module if it is an "intelligent" one. To me it sounds if the KX2 microcontroller occasionally gets overloaded and sluggish in responding to inputs. Do you have anything connected to any ports, such as serial port, AUX port, etc.? Pardon my ignorance on the KX2 here but most Elecraft radios, even the smaller ones, have ports like these. I have seen in the past (maybe not with an Elecraft product) radio brought to its knees from hyperactivity on a serial port. Disconnect everything that is not essential to local (sitting in front of) radio operation and see if the problem goes away. AB2TC - Knut Lyle Johnson wrote > All encoders in the KX2 are soldered you the control panel board. > > 73, > > Lyle KK7P > > Sent from my iPhone > >> On Apr 19, 2020, at 3:57 AM, Heinz Baertschi < > heinz.baertschi@ > > wrote: >> >> ? >> Thanks Tom, interesting to know. >> >> *When troubleshooting it would still be of great help to know how the KX2 >> encoder is connected to the main bord - plugged in or soldered?* >> >> 73, >> Heinz HB9BCB >> >> >> >> Tommy wrote >>> I have seen the same on my KX2, while dialing it seems to freeze at >>> times for a second or so at a time. Even after being on only a few >>> minutes. Kind of annoying but not too worrying to me. At least for now. >>> Serial # 01927 >>> >>> 73 de Tom KB2SMS >>> >>> >>>> On 4/18/20 10:44 AM, Heinz Baertschi wrote: > -- Sent from: http://elecraft.365791.n2.nabble.com/ From turnbull at net1.ie Sun Apr 19 12:57:57 2020 From: turnbull at net1.ie (Doug Turnbull) Date: Sun, 19 Apr 2020 16:57:57 -0000 Subject: [Elecraft] K-4 capabilities In-Reply-To: References: Message-ID: <014401d6166b$ad2c1f30$07845d90$@net1.ie> Wayne, In these times of lockdown some of us are buoyed up with the prospect of the new K4. Well some of the fortunate who are waiting for early delivery. It is a bit like waiting for Santa as a kid. When a toy catalogue came in the door I devoured it; well maybe these catalogues are a thing of the past. Nonetheless, anything you can tell us about this radio just gives us something to look forward to. I see from the back of QST that the Kenwood TS 890S has some pretty nice features and impressive specifications. It will be most interesting to see how the K4 stacks up. Will Porsche surpass Jaguar again and claim pole position? The K4 is a big hope for the future. Tell us what you can, we need bedtime stories to fall asleep dreaming over. 73 Doug EI2CN -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Art Suberbielle Sent: Sunday 19 April 2020 16:36 To: Elecraft list Subject: [Elecraft] K-4 capabilities As we all await the arrival of the K-4, I'm wondering if the radio will "remember" all of the settings per band. Specifically, I use different RF settings per band and have to remember to reset the RF as I go from 160 to 20, for example. Will these settings and AF gain, etc be recalled per band? Wayne, et al, tell us more about what you've been doing on the software design side of the K-4 while "on vacation" at home? 73, Art KZ5D ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to turnbull at net1.ie From peter at peterwest.ca Sun Apr 19 12:59:47 2020 From: peter at peterwest.ca (Peter West) Date: Sun, 19 Apr 2020 12:59:47 -0400 Subject: [Elecraft] KX-2 ATU not working Message-ID: I can hear the ATU in my KX-2 running when the ATU button is pushed but it is not changing the SWR. An Elecraft T1 works and lowers the SWR. Any thoughts or is this a mail-in repair solution? 73 - Peter - VE3HG From w6jhb at me.com Sun Apr 19 13:18:03 2020 From: w6jhb at me.com (James Bennett) Date: Sun, 19 Apr 2020 10:18:03 -0700 Subject: [Elecraft] KX2 With W9RAN "Versatile T/R Switch" for SDR Message-ID: Hi All - wondering if any of you KX2 (or even KX3) owners have built and are using the W9RAN "Versatile T/R Switch for SDRs and Vintage Radios? featured on page 30 of the December 2018 issue of QST? I enjoy the P3 that I use with my K3 and sure miss ?seeing? the band when I use the little QRP rig here in the shack. I have an RSPplay RSPpro2 SDR connected to a Mac Mini and a 32? monitor and would like to share my antenna system between the SDR and the KX2. This would allow me to ?look" at a particular band with the SDR and then tune the KX2 to a desired spot I found on the SDR. I got the T/R Switch kit from W9RAN on Saturday and have not yet started building it. Based on the schematic in QST, it appears that as built, one cannot listen to the KX2 receiver; the antenna is connected to the SDR until the transmitter is keyed. I thought maybe I could jumper pins 14 and 11 at the T/R relay on the board, or use a coax Tee so that the KX2 would always be connected to the antenna. Thoughts?? Jim / W6JHB From M0XDF at Alphadene.co.uk Sun Apr 19 13:23:41 2020 From: M0XDF at Alphadene.co.uk (David Ferrington, M0XDF) Date: Sun, 19 Apr 2020 18:23:41 +0100 Subject: [Elecraft] K3 Utility vs macOS Catalina In-Reply-To: References: Message-ID: Sorry, if someone mentioned this, but the original KUSB uses a Prolific chipset. That?s always been temperamental. Plugable.com have drivers for 10.15.3 but you have to buy them and I haven?t tried them. 73 de David, M0XDF The difference between genius and stupidity is that genius has its limits. -- Albert Einstein > On 28 Mar 2020, at 16:08, John Woodard wrote: > > Hi Don, > I just upgraded to 10.15.4 and launched K3 Utility. It loaded fine, but > I noticed that the options under the Configuration and Calibration tabs > were grayed out. I switched to the Port tab and selected Test > Communications. When I got the positive response back from the K3, the > options under Configuration and Calibration were no longer grayed out. > Everything seems to be working fine now. > > 73 de John, WK8A > > On Fri, Mar 27, 2020 at 7:05 PM Don Putnick > wrote: > >> Hi all, >> I'm working with Rob at Elecraft on this, but I'm trying to gather more >> data for us. When I open the K3 Utility under Catalina, nothing is >> displayed. If I go down to the dock, right click on the utility, then >> select "Show all windows", the utility main screen opens. BUT if I click on >> the screen, it closes immediately. The KAT500 Utility works just fine, so I >> don't think its the usb-to-serial cable or the driver. And the K3 Utility >> works correctly under macOS Sierra. Anyone else experiencing this? >> 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 john.l.woodard 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 backhoeken at yahoo.com Sun Apr 19 13:27:02 2020 From: backhoeken at yahoo.com (Ken B) Date: Sun, 19 Apr 2020 17:27:02 +0000 (UTC) Subject: [Elecraft] K-4 capabilities In-Reply-To: <014401d6166b$ad2c1f30$07845d90$@net1.ie> References: <014401d6166b$ad2c1f30$07845d90$@net1.ie> Message-ID: <987471551.3122724.1587317222116@mail.yahoo.com> Anxiously awaiting it.? ?There was promises of more and frequent conversation unless I am mistaken.? ?I paid for it in full and am not going to cancel it but would like more information Thank youWB8PKK Sent from Yahoo Mail on Android On Sun, Apr 19, 2020 at 1:09 PM, Doug Turnbull wrote: Wayne, ? ? In these times of lockdown some of us are buoyed up with the prospect of the new K4.? ? Well some of the fortunate who are waiting for early delivery.? ? It is a bit like waiting for Santa as a kid.? When a toy catalogue came in the door I devoured it; well maybe these catalogues are a thing of the past.? Nonetheless, anything you can tell us about this radio just gives us something to look forward to.? ? I see from the back of QST that the Kenwood TS 890S has some pretty nice features and impressive specifications.? ? It will be most interesting to see how the K4 stacks up. Will Porsche surpass Jaguar again and claim pole position?? ? The K4 is a big hope for the future.? ? Tell us what you can, we need bedtime stories to fall asleep dreaming over. ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 73 Doug EI2CN -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Art Suberbielle Sent: Sunday 19 April 2020 16:36 To: Elecraft list Subject: [Elecraft] K-4 capabilities As we all await the arrival of the K-4, I'm wondering if the radio will "remember" all of the settings per band. Specifically, I use different RF settings per band and have to remember to reset the RF as I go from 160 to 20, for example. Will these settings and AF gain, etc be recalled per band? Wayne, et al, tell us more about what you've been doing on the software design side of the K-4 while "on vacation" at home? 73, Art KZ5D ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to turnbull at net1.ie ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to backhoeken at yahoo.com From jim at audiosystemsgroup.com Sun Apr 19 13:41:43 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 19 Apr 2020 10:41:43 -0700 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <1587311490329-0.post@n2.nabble.com> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> <1587311490329-0.post@n2.nabble.com> Message-ID: On 4/19/2020 8:51 AM, ab2tc wrote: > I totally agree with your last statement about the tuner placement. The importance of a tuner being at the feedpoint depends entirely on the antenna, the frequency(ies), and the feedline. The lower the operating frequency, and lower the feedline loss characteristics, and the lower the mismatch, a tuner in the shack can work quite well at moderate power levels. AD5X, who does product reviews for ARRL, reviewed the "43 ft vertical," which is notoriously difficult to match. One solution he found was a 4:1 unun at the feedpoint and 1/2-in hardline to the shack. For high power on 160 and 80M, he used a tuner at the feedpoint. Some years ago, I successfully loaded a vertical on 80M that was resonant on 160M, hence a VERY high impedance at the feedpoint. The feedline was RG8 and only about 40 ft long, so I was able to load it quite successfully with a Ten Tec 238 tuner in the shack and a legal limit Ten Tec tube amp. On 60M, I'm currently loading a high 80M dipole fed with 160 ft of RG11 using the tuner in the KPA1500. The amp, of course, is throttled back to less than 100W. I'm not the loudest signal on the band, but I've worked into EU and SA in a few evenings on the band. 73, Jim K9YC From mike at ve3yf.com Sun Apr 19 13:57:10 2020 From: mike at ve3yf.com (Mike VE3YF) Date: Sun, 19 Apr 2020 17:57:10 +0000 Subject: [Elecraft] K-4 capabilities In-Reply-To: <987471551.3122724.1587317222116@mail.yahoo.com> References: <987471551.3122724.1587317222116@mail.yahoo.com> Message-ID: <394787b0-c657-43f3-193a-f5d266035148@ve3yf.com> Yes getting some more info would be great. I have been bugging the boys at Elecraft for an electronic copy of the manual, but nothing yet. I have all the cabling done and a spot cleared on the desk beside my KPA1500 for either my K4D or K4HD, I too have paid the full amount and just waiting for the early May date when California will ultimately decide if people can go back to work or will have to stay isolated further. I think from reading everything hinges on that time frame. In the meantime I guess we will have to wait and stare at pictures of the K4 Front panel. -- *73 De Mike* *VE3YF _/http://www.ve3yf.com/_* From xdavid at cis-broadband.com Sun Apr 19 14:11:58 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Sun, 19 Apr 2020 11:11:58 -0700 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> Message-ID: <980f0fdb-f03a-7770-7d1e-b1b4e01ad103@cis-broadband.com> I don't think that's actually true in most cases.? For example, a load of 35 - j45 gives a 3:1 SWR at the load for 50 ohm coax, and the additional line loss at 14 MHz due to SWR over 200 feet of LMR-400 (moderate cost) is about 0.5 dB. In most cases with typical antennas and decent feedline, a tuner is more about making your rig or amplifier happy, and for that it can be in the shack. Unless of course you're talking about some random piece of wire with a 10:1 SWR, but even then the extra loss due to SWR for the 200 feet of LMR-400 is less than 2.5 dB at 14 MHz.? The best reason I can think of for a tuner in that case is to keep the RF voltage from being excessive at high power.? If you're obsessive about 50 ohm matched antennas I doubt that is the case for you, and if it was me I'd put the $1,000+ dollars it would probably cost for a stand alone high power remote tuner capable of handling a 10:1 SWR to better use on the antennas themselves. 73, Dave ? AB7E On 4/19/2020 5:40 AM, Richard Thorne wrote: > I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. > > Rich - N5ZC From xdavid at cis-broadband.com Sun Apr 19 14:16:51 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Sun, 19 Apr 2020 11:16:51 -0700 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <004901d61662$88fd5c40$9af814c0$@LNAINC.com> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> <004901d61662$88fd5c40$9af814c0$@LNAINC.com> Message-ID: <50f98ffa-8656-1ce5-af95-006f788ab494@cis-broadband.com> Why?? Specifically (numbers please), what would it gain you that would be cost effective versus other alternatives? 73, Dave?? AB7E On 4/19/2020 8:52 AM, Lyn Norstad wrote: > > That being said, a ?remote? version of the KAT500 (or a KAT1500) would be of immense interest to me ? so I will follow this thread closely. > > > > 73 > > Lyn, > > W0LEN > > From turnbull at net1.ie Sun Apr 19 14:37:15 2020 From: turnbull at net1.ie (Doug Turnbull) Date: Sun, 19 Apr 2020 18:37:15 -0000 Subject: [Elecraft] K-4 capabilities In-Reply-To: <394787b0-c657-43f3-193a-f5d266035148@ve3yf.com> References: <987471551.3122724.1587317222116@mail.yahoo.com> <394787b0-c657-43f3-193a-f5d266035148@ve3yf.com> Message-ID: <016501d61679$8c7b40f0$a571c2d0$@net1.ie> Hello Mike and friends, Well you are not in the EU and do not need to wait for CE approval. The start of this process can only begin as I understand with a production model. Until CE approval is obtained Elecraft can not shirt to the EU. I am not complaining about EI being in the EU but am anxious. I suppose one could bring one back from the USA on a plane and declare it in the airport but there are no flights out of EI to USA for such purposes these days. My radio is also paid for and ultimately it will be the K4HD. One can add the "superhet ?" front end later when it becomes available. 73 Doug EI2CN PS this is what happens to one who is cocooned. Over 70s in EI are not even supposed to leave their property to go grocery shopping ; this is something neighbours are expected to do. -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Mike VE3YF Sent: Sunday 19 April 2020 17:57 To: elecraft at mailman.qth.net Subject: Re: [Elecraft] K-4 capabilities Yes getting some more info would be great. I have been bugging the boys at Elecraft for an electronic copy of the manual, but nothing yet. I have all the cabling done and a spot cleared on the desk beside my KPA1500 for either my K4D or K4HD, I too have paid the full amount and just waiting for the early May date when California will ultimately decide if people can go back to work or will have to stay isolated further. I think from reading everything hinges on that time frame. In the meantime I guess we will have to wait and stare at pictures of the K4 Front panel. -- *73 De Mike* *VE3YF _/http://www.ve3yf.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 turnbull at net1.ie From k3ndm at comcast.net Sun Apr 19 14:41:28 2020 From: k3ndm at comcast.net (Barry LaZar) Date: Sun, 19 Apr 2020 14:41:28 -0400 Subject: [Elecraft] K-4 capabilities In-Reply-To: References: Message-ID: And, how will I be able to interface CW Skimmer for contesting? Will there be a I&Q output available in MME format as there will be no IF. 73, Barry K3NDM On Sun, Apr 19, 2020, 12:37 PM Art Suberbielle wrote: > As we all await the arrival of the K-4, I'm wondering if the radio will > "remember" all of the settings per band. Specifically, I use different RF > settings per band and have to remember to reset the RF as I go from 160 to > 20, for example. Will these settings and AF gain, etc be recalled per band? > > Wayne, et al, tell us more about what you've been doing on the software > design side of the K-4 while "on vacation" at home? > > 73, > Art KZ5D > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 > From ve7xf at shaw.ca Sun Apr 19 14:44:54 2020 From: ve7xf at shaw.ca (Ralph Parker) Date: Sun, 19 Apr 2020 11:44:54 -0700 Subject: [Elecraft] K4 capabilities Message-ID: >In the meantime I guess we will have to wait and stare at pictures of the K4 Front panel. While anxiously waiting in line for the KPA500 to be released, I printed out a picture of the front panel of the '500, cut it out and placed it on the shelf where the '500 would go. Then I could pretend that the station was complete. Almost as good as the real thing! VE7XF From dpbunte at gmail.com Sun Apr 19 15:08:05 2020 From: dpbunte at gmail.com (David Bunte) Date: Sun, 19 Apr 2020 15:08:05 -0400 Subject: [Elecraft] K4 capabilities In-Reply-To: References: Message-ID: Ralph - I love that story. When I was in high school I saw a full page photo of the Hallicrafters SX-101A in CQ Magazine. I cut out that photo and had it taped to my desk while I finished saving for that beast of a receiver. Dave - K9FN On Sun, Apr 19, 2020 at 2:46 PM Ralph Parker wrote: > >In the meantime I guess we will have to wait and stare at pictures of > the K4 Front panel. > > While anxiously waiting in line for the KPA500 to be released, I printed > out a picture of the front panel > of the '500, cut it out and placed it on the shelf where the '500 would > go. Then I could pretend that > the station was complete. > Almost as good as the real thing! > > VE7XF > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dpbunte at gmail.com > From w7hsg at comcast.net Sun Apr 19 15:31:07 2020 From: w7hsg at comcast.net (RALPH TURK) Date: Sun, 19 Apr 2020 13:31:07 -0600 (MDT) Subject: [Elecraft] K4 Message-ID: <1941442144.68625.1587324668212@connect.xfinity.com> Wayne et all My only concern before I order a K4 is how it will work with two high power AM transmitters near me. 10KW day,1kw night KVOI south of me and a 50kw day only KUAT AM north of me. At some time, I will need to borrow or rent a k4 for a week and see how it behaves The majority of my operation is between 2-3.5 Mhz, 4 to 7mhz, 7.3-10mhz, 11mhz to14mhz. I also use my radio on most ham bands. I currently use a K3 with all bells and 1000MP The MP seems to handle the intermod better then the k3 The intermod is not caused within the radios but cause by rusty chainlink fence, poor power line grounds etc. My antennas are not the problem. I tried a sharp cutoff filter for everything below 3.5mhz. No positive measurable results. Ralph, W7HSG, AFA9RT 520-444-6610 From n6kr at elecraft.com Sun Apr 19 15:46:21 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 19 Apr 2020 12:46:21 -0700 Subject: [Elecraft] Some K4 updates from the engineering department Message-ID: Greetings from locked-down California.... I hope everyone, near and far, is staying safe! I thought I'd take a break from playing with the K4 and tweaking firmware to give everyone a status report from the engineering side. (Eric has been keeping everyone informed about how Elecraft has been affected by the pandemic more generally.) These musings are in no particular order. I hope they help satisfy those who recently posted with questions, info-cravings, etc. * * * Reference Oscillator The K4 includes a stable internal TXCO, standard, as well as the ability to lock to an external 10 MHz reference. We just completed a round of testing on this feature. The internal TCXO is accurate to within +/- .28 ppm with no calibration and no external reference connected. There's a menu entry for dialing this in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external reference will hold it even closer, and of course keep it there over an even wider temperature range. Panadapter Controls Thanks to the efforts of our [working-at-home] software team, the panadapter controls just keep getting better. When you tap DISPLAY, you're presented with 14 easy to use display functions. But we took things a step further by allowing you to specify whether to adjust the current parameter on LCD, EXT, or both (when an external monitor is attached), and on main, sub, or both (when in dual-display mode). You can independently specify single or dual-pan for LCD and external monitor. For example, you could have dual-Pan on a large HDMI monitor, while setting the LCD to monitor just main or sub RX. Stereo Audio Receive audio provides independent left and right channels for both headphones and external speakers. When used in single-receive mode, this allows you to use simulated stereo or "pitch mapping"-- both very effective at relieving listening fatigue. I've been using this a lot in DXing and QRP work. Full stereo also comes into play in diversity mode, when listening to pileups, or just monitoring two separate bands. Even with a basic K4, the two receivers can be set to any two bands, and you can operate cross-band split. The K4D adds a second set of band-pass filters and a second A-to-D converter to greatly improve out-of-band rejection when monitoring different bands. Receive Antenna Controls We recently made some improvements in this area. In addition to main RX ant and sub RX ant selection switches, there are now separate icons showing which antennas are in use: one for main RX, one for sub RX, and one for TX antenna. Main and sub receivers default to the TX antenna, but you can select any of the antenna jacks for assignment to each receiver independently. This updates the icons accordingly. You can also assign names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I have names for the three antennas connected to my KAT4 ATU, as well as "SIG GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. RF Gain Controls The ATTN switch brings up a selection tool that allows you to turn the attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As with all receive and transmit controls, these settings are stored per-band and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, with digital readout) and preamp setting (off/pre1/pre2). All gain settings are now taken into account when calculating S-meter and panadapter reference levels. Miscellaneous Controls Compared the the K3S, the K4 has numerous additional controls, resulting in a lot less use of the menu. Each receiver has a collection of per-mode settings (tap MAIN RX or SUB RX, respectively), as does the transmitter (tap the TX button). There are dedicated switches for TUNE LP (user-specified low-power TUNE setting), REM ANT (for future control of remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user functions, Fn 1-14, via a touch function), and a separate audio BALance knob function, the behavior of which could be adapted to various operator needs in the future. Touch Controls We're sure you'll find, as we have, that the K4's touch screen interface is fast and convenient to use. To capitalize on this, we've been adding new touch features. To highlight a few: Tapping the RIT/XIT offset window turns RIT on/off (per receiver). Tapping the antenna icons brings up their selection widgets, with planned custom behavior for quick A/B testing. The Status Area of the LCD normally shows time and date, but you can tap it to select from various alternatives, including system parameters (like supply voltage/current) or per-receiver absolute signal levels in dBm. Tapping the per-RX filter graphics switches between per-mode FL1/2/3 settings. * * * I have to admit that it's frustrating to be sequestered at home, making only the occasional quick trip to the office or to visit coworkers. Work, like life, has become more challenging for all of us. But the good news for everyone waiting for a K4 is that a handful of testers are using them every day, so that when you do get your hands on one, it'll be rock-solid. Believe me, we're just as anxious for that day to arrive as you are. Maybe more :) 73, Wayne N6KR From n6kr at elecraft.com Sun Apr 19 15:48:06 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 19 Apr 2020 12:48:06 -0700 Subject: [Elecraft] K-4 capabilities In-Reply-To: References: Message-ID: This is definitely planned. Wayne > On Apr 19, 2020, at 11:41 AM, Barry LaZar wrote: > > And, how will I be able to interface CW Skimmer for contesting? Will there > be a I&Q output available in MME format as there will be no IF. > > 73, > Barry > K3NDM > > On Sun, Apr 19, 2020, 12:37 PM Art Suberbielle wrote: > >> As we all await the arrival of the K-4, I'm wondering if the radio will >> "remember" all of the settings per band. Specifically, I use different RF >> settings per band and have to remember to reset the RF as I go from 160 to >> 20, for example. Will these settings and AF gain, etc be recalled per band? >> >> Wayne, et al, tell us more about what you've been doing on the software >> design side of the K-4 while "on vacation" at home? >> >> 73, >> Art KZ5D >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 dick.w7zr at gmail.com Sun Apr 19 15:53:39 2020 From: dick.w7zr at gmail.com (Richard Zalewski) Date: Sun, 19 Apr 2020 12:53:39 -0700 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: References: Message-ID: Thank you very much. More updates like this will make your bankers (those that pre-ordered) feel a lot better. Please keep it up and Stay Safe! 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 Sun, Apr 19, 2020 at 12:47 PM Wayne Burdick wrote: > Greetings from locked-down California.... I hope everyone, near and far, > is staying safe! > > I thought I'd take a break from playing with the K4 and tweaking firmware > to give everyone a status report from the engineering side. (Eric has been > keeping everyone informed about how Elecraft has been affected by the > pandemic more generally.) > > These musings are in no particular order. I hope they help satisfy those > who recently posted with questions, info-cravings, etc. > > * * * > > Reference Oscillator > > The K4 includes a stable internal TXCO, standard, as well as the ability > to lock to an external 10 MHz reference. We just completed a round of > testing on this feature. > > The internal TCXO is accurate to within +/- .28 ppm with no calibration > and no external reference connected. There's a menu entry for dialing this > in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external > reference will hold it even closer, and of course keep it there over an > even wider temperature range. > > Panadapter Controls > > Thanks to the efforts of our [working-at-home] software team, the > panadapter controls just keep getting better. When you tap DISPLAY, you're > presented with 14 easy to use display functions. But we took things a step > further by allowing you to specify whether to adjust the current parameter > on LCD, EXT, or both (when an external monitor is attached), and on main, > sub, or both (when in dual-display mode). You can independently specify > single or dual-pan for LCD and external monitor. For example, you could > have dual-Pan on a large HDMI monitor, while setting the LCD to monitor > just main or sub RX. > > Stereo Audio > > Receive audio provides independent left and right channels for both > headphones and external speakers. When used in single-receive mode, this > allows you to use simulated stereo or "pitch mapping"-- both very effective > at relieving listening fatigue. I've been using this a lot in DXing and QRP > work. Full stereo also comes into play in diversity mode, when listening to > pileups, or just monitoring two separate bands. Even with a basic K4, the > two receivers can be set to any two bands, and you can operate cross-band > split. The K4D adds a second set of band-pass filters and a second A-to-D > converter to greatly improve out-of-band rejection when monitoring > different bands. > > Receive Antenna Controls > > We recently made some improvements in this area. In addition to main RX > ant and sub RX ant selection switches, there are now separate icons showing > which antennas are in use: one for main RX, one for sub RX, and one for TX > antenna. Main and sub receivers default to the TX antenna, but you can > select any of the antenna jacks for assignment to each receiver > independently. This updates the icons accordingly. You can also assign > names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I > have names for the three antennas connected to my KAT4 ATU, as well as "SIG > GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. > > RF Gain Controls > > The ATTN switch brings up a selection tool that allows you to turn the > attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As > with all receive and transmit controls, these settings are stored per-band > and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, > with digital readout) and preamp setting (off/pre1/pre2). All gain settings > are now taken into account when calculating S-meter and panadapter > reference levels. > > Miscellaneous Controls > > Compared the the K3S, the K4 has numerous additional controls, resulting > in a lot less use of the menu. Each receiver has a collection of per-mode > settings (tap MAIN RX or SUB RX, respectively), as does the transmitter > (tap the TX button). There are dedicated switches for TUNE LP > (user-specified low-power TUNE setting), REM ANT (for future control of > remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual > A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user > functions, Fn 1-14, via a touch function), and a separate audio BALance > knob function, the behavior of which could be adapted to various operator > needs in the future. > > Touch Controls > > We're sure you'll find, as we have, that the K4's touch screen interface > is fast and convenient to use. To capitalize on this, we've been adding new > touch features. To highlight a few: Tapping the RIT/XIT offset window turns > RIT on/off (per receiver). Tapping the antenna icons brings up their > selection widgets, with planned custom behavior for quick A/B testing. The > Status Area of the LCD normally shows time and date, but you can tap it to > select from various alternatives, including system parameters (like supply > voltage/current) or per-receiver absolute signal levels in dBm. Tapping the > per-RX filter graphics switches between per-mode FL1/2/3 settings. > > * * * > > I have to admit that it's frustrating to be sequestered at home, making > only the occasional quick trip to the office or to visit coworkers. Work, > like life, has become more challenging for all of us. But the good news for > everyone waiting for a K4 is that a handful of testers are using them every > day, so that when you do get your hands on one, it'll be rock-solid. > > Believe me, we're just as anxious for that day to arrive as you are. Maybe > more :) > > 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 dick.w7zr at gmail.com > From c-hawley at illinois.edu Sun Apr 19 16:10:51 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sun, 19 Apr 2020 20:10:51 +0000 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: References: Message-ID: <7BEBD228-20B3-4113-A565-4519F5BDE8C4@illinois.edu> When I read about the touch controls, I suddenly had an image in my mind of a small touch tablet on the desk that had all the controls on it that were on the K4 display. Kind of a touch panel Kpod... Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Apr 19, 2020, at 2:46 PM, Wayne Burdick wrote: > > ?Greetings from locked-down California.... I hope everyone, near and far, is staying safe! > > I thought I'd take a break from playing with the K4 and tweaking firmware to give everyone a status report from the engineering side. (Eric has been keeping everyone informed about how Elecraft has been affected by the pandemic more generally.) > > These musings are in no particular order. I hope they help satisfy those who recently posted with questions, info-cravings, etc. > > * * * > > Reference Oscillator > > The K4 includes a stable internal TXCO, standard, as well as the ability to lock to an external 10 MHz reference. We just completed a round of testing on this feature. > > The internal TCXO is accurate to within +/- .28 ppm with no calibration and no external reference connected. There's a menu entry for dialing this in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external reference will hold it even closer, and of course keep it there over an even wider temperature range. > > Panadapter Controls > > Thanks to the efforts of our [working-at-home] software team, the panadapter controls just keep getting better. When you tap DISPLAY, you're presented with 14 easy to use display functions. But we took things a step further by allowing you to specify whether to adjust the current parameter on LCD, EXT, or both (when an external monitor is attached), and on main, sub, or both (when in dual-display mode). You can independently specify single or dual-pan for LCD and external monitor. For example, you could have dual-Pan on a large HDMI monitor, while setting the LCD to monitor just main or sub RX. > > Stereo Audio > > Receive audio provides independent left and right channels for both headphones and external speakers. When used in single-receive mode, this allows you to use simulated stereo or "pitch mapping"-- both very effective at relieving listening fatigue. I've been using this a lot in DXing and QRP work. Full stereo also comes into play in diversity mode, when listening to pileups, or just monitoring two separate bands. Even with a basic K4, the two receivers can be set to any two bands, and you can operate cross-band split. The K4D adds a second set of band-pass filters and a second A-to-D converter to greatly improve out-of-band rejection when monitoring different bands. > > Receive Antenna Controls > > We recently made some improvements in this area. In addition to main RX ant and sub RX ant selection switches, there are now separate icons showing which antennas are in use: one for main RX, one for sub RX, and one for TX antenna. Main and sub receivers default to the TX antenna, but you can select any of the antenna jacks for assignment to each receiver independently. This updates the icons accordingly. You can also assign names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I have names for the three antennas connected to my KAT4 ATU, as well as "SIG GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. > > RF Gain Controls > > The ATTN switch brings up a selection tool that allows you to turn the attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As with all receive and transmit controls, these settings are stored per-band and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, with digital readout) and preamp setting (off/pre1/pre2). All gain settings are now taken into account when calculating S-meter and panadapter reference levels. > > Miscellaneous Controls > > Compared the the K3S, the K4 has numerous additional controls, resulting in a lot less use of the menu. Each receiver has a collection of per-mode settings (tap MAIN RX or SUB RX, respectively), as does the transmitter (tap the TX button). There are dedicated switches for TUNE LP (user-specified low-power TUNE setting), REM ANT (for future control of remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user functions, Fn 1-14, via a touch function), and a separate audio BALance knob function, the behavior of which could be adapted to various operator needs in the future. > > Touch Controls > > We're sure you'll find, as we have, that the K4's touch screen interface is fast and convenient to use. To capitalize on this, we've been adding new touch features. To highlight a few: Tapping the RIT/XIT offset window turns RIT on/off (per receiver). Tapping the antenna icons brings up their selection widgets, with planned custom behavior for quick A/B testing. The Status Area of the LCD normally shows time and date, but you can tap it to select from various alternatives, including system parameters (like supply voltage/current) or per-receiver absolute signal levels in dBm. Tapping the per-RX filter graphics switches between per-mode FL1/2/3 settings. > > * * * > > I have to admit that it's frustrating to be sequestered at home, making only the occasional quick trip to the office or to visit coworkers. Work, like life, has become more challenging for all of us. But the good news for everyone waiting for a K4 is that a handful of testers are using them every day, so that when you do get your hands on one, it'll be rock-solid. > > Believe me, we're just as anxious for that day to arrive as you are. Maybe more :) > > 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 c-hawley at illinois.edu From rick.nk7i at gmail.com Sun Apr 19 16:13:13 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Sun, 19 Apr 2020 13:13:13 -0700 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: <7BEBD228-20B3-4113-A565-4519F5BDE8C4@illinois.edu> References: <7BEBD228-20B3-4113-A565-4519F5BDE8C4@illinois.edu> Message-ID: Simpler yet, use an appropriate size (for your desk) tablet to manage the K4. Then take that with you when you?re in another room, traveling, etc. Rick NK7I Smell Czech corruptions are inevitable > On Apr 19, 2020, at 1:11 PM, hawley, charles j jr wrote: > > ?When I read about the touch controls, I suddenly had an image in my mind of a small touch tablet on the desk that had all the controls on it that were on the K4 display. > Kind of a touch panel Kpod... > > Jack BMW Motorcycles > Chuck KE9UW > c-hawley at illinois.edu > > Sent from my iPad > >> On Apr 19, 2020, at 2:46 PM, Wayne Burdick wrote: >> >> ?Greetings from locked-down California.... I hope everyone, near and far, is staying safe! >> >> I thought I'd take a break from playing with the K4 and tweaking firmware to give everyone a status report from the engineering side. (Eric has been keeping everyone informed about how Elecraft has been affected by the pandemic more generally.) >> >> These musings are in no particular order. I hope they help satisfy those who recently posted with questions, info-cravings, etc. >> >> * * * >> >> Reference Oscillator >> >> The K4 includes a stable internal TXCO, standard, as well as the ability to lock to an external 10 MHz reference. We just completed a round of testing on this feature. >> >> The internal TCXO is accurate to within +/- .28 ppm with no calibration and no external reference connected. There's a menu entry for dialing this in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external reference will hold it even closer, and of course keep it there over an even wider temperature range. >> >> Panadapter Controls >> >> Thanks to the efforts of our [working-at-home] software team, the panadapter controls just keep getting better. When you tap DISPLAY, you're presented with 14 easy to use display functions. But we took things a step further by allowing you to specify whether to adjust the current parameter on LCD, EXT, or both (when an external monitor is attached), and on main, sub, or both (when in dual-display mode). You can independently specify single or dual-pan for LCD and external monitor. For example, you could have dual-Pan on a large HDMI monitor, while setting the LCD to monitor just main or sub RX. >> >> Stereo Audio >> >> Receive audio provides independent left and right channels for both headphones and external speakers. When used in single-receive mode, this allows you to use simulated stereo or "pitch mapping"-- both very effective at relieving listening fatigue. I've been using this a lot in DXing and QRP work. Full stereo also comes into play in diversity mode, when listening to pileups, or just monitoring two separate bands. Even with a basic K4, the two receivers can be set to any two bands, and you can operate cross-band split. The K4D adds a second set of band-pass filters and a second A-to-D converter to greatly improve out-of-band rejection when monitoring different bands. >> >> Receive Antenna Controls >> >> We recently made some improvements in this area. In addition to main RX ant and sub RX ant selection switches, there are now separate icons showing which antennas are in use: one for main RX, one for sub RX, and one for TX antenna. Main and sub receivers default to the TX antenna, but you can select any of the antenna jacks for assignment to each receiver independently. This updates the icons accordingly. You can also assign names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I have names for the three antennas connected to my KAT4 ATU, as well as "SIG GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. >> >> RF Gain Controls >> >> The ATTN switch brings up a selection tool that allows you to turn the attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As with all receive and transmit controls, these settings are stored per-band and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, with digital readout) and preamp setting (off/pre1/pre2). All gain settings are now taken into account when calculating S-meter and panadapter reference levels. >> >> Miscellaneous Controls >> >> Compared the the K3S, the K4 has numerous additional controls, resulting in a lot less use of the menu. Each receiver has a collection of per-mode settings (tap MAIN RX or SUB RX, respectively), as does the transmitter (tap the TX button). There are dedicated switches for TUNE LP (user-specified low-power TUNE setting), REM ANT (for future control of remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user functions, Fn 1-14, via a touch function), and a separate audio BALance knob function, the behavior of which could be adapted to various operator needs in the future. >> >> Touch Controls >> >> We're sure you'll find, as we have, that the K4's touch screen interface is fast and convenient to use. To capitalize on this, we've been adding new touch features. To highlight a few: Tapping the RIT/XIT offset window turns RIT on/off (per receiver). Tapping the antenna icons brings up their selection widgets, with planned custom behavior for quick A/B testing. The Status Area of the LCD normally shows time and date, but you can tap it to select from various alternatives, including system parameters (like supply voltage/current) or per-receiver absolute signal levels in dBm. Tapping the per-RX filter graphics switches between per-mode FL1/2/3 settings. >> >> * * * >> >> I have to admit that it's frustrating to be sequestered at home, making only the occasional quick trip to the office or to visit coworkers. Work, like life, has become more challenging for all of us. But the good news for everyone waiting for a K4 is that a handful of testers are using them every day, so that when you do get your hands on one, it'll be rock-solid. >> >> Believe me, we're just as anxious for that day to arrive as you are. Maybe more :) >> >> 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 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 rick.nk7i at gmail.com From n6kr at elecraft.com Sun Apr 19 16:23:40 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 19 Apr 2020 13:23:40 -0700 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: <7BEBD228-20B3-4113-A565-4519F5BDE8C4@illinois.edu> References: <7BEBD228-20B3-4113-A565-4519F5BDE8C4@illinois.edu> Message-ID: We already have this capability, too.... Wayne N6KR > On Apr 19, 2020, at 1:10 PM, hawley, charles j jr wrote: > > When I read about the touch controls, I suddenly had an image in my mind of a small touch tablet on the desk that had all the controls on it that were on the K4 display. > Kind of a touch panel Kpod... > > Jack BMW Motorcycles > Chuck KE9UW > c-hawley at illinois.edu > > Sent from my iPad From W2xj at w2xj.net Sun Apr 19 17:13:02 2020 From: W2xj at w2xj.net (W2xj) Date: Sun, 19 Apr 2020 17:13:02 -0400 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> Message-ID: <2D152B7C-3063-4CF2-B204-4DE7F98041A5@w2xj.net> You can get an AT-615B from Array Solutions now and do this. I put 10 in a club station for our various wire arrays. They do everything you need. BTW I disagree about this 50 Ohm antenna thing. In my world of commercial high powered broadcasting 30 MHz and under, there are almost never resonant, matched 50 ohm arrays. Sent from my iPad > On Apr 19, 2020, at 8:41 AM, Richard Thorne wrote: > > ? > Eric/Wayne, > > Has there been any work done for a potential dedicated remote antenna tuner? > > A remote tuner that could handle 500 or 1500 watts to match up with amps power wise (Or just a barefoot K3/K4). Maybe a black box between the LAN on the K4 or ACC on the K3 so control signals could be sent to the tuner via the coax. > > I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. > > Rich - N5ZC > 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 rmcgraw at blomand.net Sun Apr 19 17:38:17 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 19 Apr 2020 16:38:17 -0500 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <2D152B7C-3063-4CF2-B204-4DE7F98041A5@w2xj.net> References: <2D152B7C-3063-4CF2-B204-4DE7F98041A5@w2xj.net> Message-ID: I agree. Match the antenna, whatever the Z may be, to the feed line. This is most efficiently done at the antenna feed-point. However with good loss coax on HF, matching at the transmitter end is easier and less complex and less expensive. Bob, K4TAX Sent from my iPhone > On Apr 19, 2020, at 4:13 PM, W2xj wrote: > > ?You can get an AT-615B from Array Solutions now and do this. I put 10 in a club station for our various wire arrays. They do everything you need. > > BTW I disagree about this 50 Ohm antenna thing. In my world of commercial high powered broadcasting 30 MHz and under, there are almost never resonant, matched 50 ohm arrays. > > Sent from my iPad > >> On Apr 19, 2020, at 8:41 AM, Richard Thorne wrote: >> >> ? >> Eric/Wayne, >> >> Has there been any work done for a potential dedicated remote antenna tuner? >> >> A remote tuner that could handle 500 or 1500 watts to match up with amps power wise (Or just a barefoot K3/K4). Maybe a black box between the LAN on the K4 or ACC on the K3 so control signals could be sent to the tuner via the coax. >> >> I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. >> >> Rich - N5ZC >> 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 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 xdavid at cis-broadband.com Sun Apr 19 17:41:48 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Sun, 19 Apr 2020 14:41:48 -0700 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: <7BEBD228-20B3-4113-A565-4519F5BDE8C4@illinois.edu> References: <7BEBD228-20B3-4113-A565-4519F5BDE8C4@illinois.edu> Message-ID: That was already demonstrated by Elecraft in what I believe was their first video of the K4 in action at one of the trade shows. I'm sure you can still find it on YouTube somewhere. Dave ? AB7E On 4/19/2020 1:10 PM, hawley, charles j jr wrote: > When I read about the touch controls, I suddenly had an image in my mind of a small touch tablet on the desk that had all the controls on it that were on the K4 display. > Kind of a touch panel Kpod... > > Jack BMW Motorcycles > Chuck KE9UW > c-hawley at illinois.edu From rmcgraw at blomand.net Sun Apr 19 17:46:28 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 19 Apr 2020 16:46:28 -0500 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: References: Message-ID: <15661017-A6EF-4A8D-A54D-6963924667B3@blomand.net> Yep, got that experience last year at the Huntsville Hamfest. The K4 was being controlled wirelessly from an iPad. Darn slick too. Bob, K4TAX Sent from my iPhone > On Apr 19, 2020, at 4:43 PM, David Gilbert wrote: > > ? > That was already demonstrated by Elecraft in what I believe was their first video of the K4 in action at one of the trade shows. I'm sure you can still find it on YouTube somewhere. > > Dave AB7E > > > >> On 4/19/2020 1:10 PM, hawley, charles j jr wrote: >> When I read about the touch controls, I suddenly had an image in my mind of a small touch tablet on the desk that had all the controls on it that were on the K4 display. >> Kind of a touch panel Kpod... >> >> Jack BMW Motorcycles >> Chuck KE9UW >> 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 rmcgraw at blomand.net From kwroberson at yahoo.com Sun Apr 19 17:55:23 2020 From: kwroberson at yahoo.com (Ken Roberson) Date: Sun, 19 Apr 2020 21:55:23 +0000 (UTC) Subject: [Elecraft] Remote tuner References: <540968988.3208802.1587333323095.ref@mail.yahoo.com> Message-ID: <540968988.3208802.1587333323095@mail.yahoo.com> Hello all, I use a remote for a 630M 60 ft vertical - more info on my web-site. K5DNL dot com 73 Thanks Ken K5DNL From ghyoungman at gmail.com Sun Apr 19 17:58:19 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Sun, 19 Apr 2020 17:58:19 -0400 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <2D152B7C-3063-4CF2-B204-4DE7F98041A5@w2xj.net> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> <2D152B7C-3063-4CF2-B204-4DE7F98041A5@w2xj.net> Message-ID: At a ?mere? $3K each, the AT-615B might be a great product, but is hardly what I would call a universally accessible solution ? Grant NQ5T > On Apr 19, 2020, at 5:13 PM, W2xj wrote: > > You can get an AT-615B from Array Solutions now and do this. I put 10 in a club station for our various wire arrays. They do everything you need. > > BTW I disagree about this 50 Ohm antenna thing. In my world of commercial high powered broadcasting 30 MHz and under, there are almost never resonant, matched 50 ohm arrays. > > Sent from my iPad > >> On Apr 19, 2020, at 8:41 AM, Richard Thorne wrote: >> >> ? >> Eric/Wayne, >> >> Has there been any work done for a potential dedicated remote antenna tuner? >> >> A remote tuner that could handle 500 or 1500 watts to match up with amps power wise (Or just a barefoot K3/K4). Maybe a black box between the LAN on the K4 or ACC on the K3 so control signals could be sent to the tuner via the coax. >> >> I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. >> >> Rich - N5ZC >> 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 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 pvandyke1953 at gmail.com Sun Apr 19 17:58:34 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Sun, 19 Apr 2020 17:58:34 -0400 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: <15661017-A6EF-4A8D-A54D-6963924667B3@blomand.net> References: <15661017-A6EF-4A8D-A54D-6963924667B3@blomand.net> Message-ID: I will be the one that will ask ... I ASSUME it will also be accessed with an Android tablet? Paul Van Dyke .. KB9AVO also on the early list On Sun, Apr 19, 2020 at 5:47 PM Bob McGraw K4TAX wrote: > Yep, got that experience last year at the Huntsville Hamfest. The K4 was > being controlled wirelessly from an iPad. Darn slick too. > > Bob, K4TAX > > > Sent from my iPhone > > > On Apr 19, 2020, at 4:43 PM, David Gilbert > wrote: > > > > ? > > That was already demonstrated by Elecraft in what I believe was their > first video of the K4 in action at one of the trade shows. I'm sure you can > still find it on YouTube somewhere. > > > > Dave AB7E > > > > > > > >> On 4/19/2020 1:10 PM, hawley, charles j jr wrote: > >> When I read about the touch controls, I suddenly had an image in my > mind of a small touch tablet on the desk that had all the controls on it > that were on the K4 display. > >> Kind of a touch panel Kpod... > >> > >> Jack BMW Motorcycles > >> Chuck KE9UW > >> 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 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 pvandyke1953 at gmail.com From W2xj at w2xj.net Sun Apr 19 18:06:35 2020 From: W2xj at w2xj.net (W2xj) Date: Sun, 19 Apr 2020 18:06:35 -0400 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: References: Message-ID: <58C3CF87-021B-446F-9E0E-714A2CA62051@w2xj.net> you get what you pay for. Sent from my iPad > On Apr 19, 2020, at 5:58 PM, Grant Youngman wrote: > > ?At a ?mere? $3K each, the AT-615B might be a great product, but is hardly what I would call a universally accessible solution ? > > Grant NQ5T > >> On Apr 19, 2020, at 5:13 PM, W2xj wrote: >> >> You can get an AT-615B from Array Solutions now and do this. I put 10 in a club station for our various wire arrays. They do everything you need. >> >> BTW I disagree about this 50 Ohm antenna thing. In my world of commercial high powered broadcasting 30 MHz and under, there are almost never resonant, matched 50 ohm arrays. >> >> Sent from my iPad >> >>>> On Apr 19, 2020, at 8:41 AM, Richard Thorne wrote: >>> >>> ? >>> Eric/Wayne, >>> >>> Has there been any work done for a potential dedicated remote antenna tuner? >>> >>> A remote tuner that could handle 500 or 1500 watts to match up with amps power wise (Or just a barefoot K3/K4). Maybe a black box between the LAN on the K4 or ACC on the K3 so control signals could be sent to the tuner via the coax. >>> >>> I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. >>> >>> Rich - N5ZC >>> 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 >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 ch at murgatroid.com Sun Apr 19 18:07:14 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Sun, 19 Apr 2020 15:07:14 -0700 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: You might want to replace the bridge rectifier in that new 35A power supply. Yep, right out of the box. At some point, Astron started shipping RS-35A's with a 25A bridge rectifier. They paralleled two out of four of the 25A diodes twice over to make, supposedly, a pair of 50A diodes for center-tapped full-wave rectification. That's not good engineering practice as the diodes in each pair will not share current equally because of differences in Vf and tempco. Once one blow, the other will blow shortly after. After I fixed my own RS-35A with this problem, I've helped several other hams fix this same problem in theirs. Not a random sample, as this is just folks on my local machine and in local clubs. You can get a 50A bridge in the same package for under $3. Perhaps Astron has fixed the problem since .... 73 de AI6KG -ch On Thu, Apr 16, 2020 at 10:28 AM Ray Albers wrote: > Many to all who posted/responded to my recent post about an electrolytic > capacitor failure in my power supply. Lots of very interesting reading > about peoples' industry experiences - thank you! > > Several have pointed out that using a 20A supply with my K3/100 is pushing > close to (or over!) the limit. Even though I am measuring just 16A at the > power level I'm running (and not running anything but the K3 on this > supply) I agree that I'm skirting the edges. So even though I've been > getting away with it for a long time, this morning I ordered a 35A supply. > I'll probably sleep better. > > 73 > Ray K2HYD > > < > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon > > > Virus-free. > www.avast.com > < > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link > > > <#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 ch at murgatroid.com > From Lyn at LNAINC.com Sun Apr 19 18:34:11 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Sun, 19 Apr 2020 17:34:11 -0500 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <50f98ffa-8656-1ce5-af95-006f788ab494@cis-broadband.com> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> <004901d61662$88fd5c40$9af814c0$@LNAINC.com> <50f98ffa-8656-1ce5-af95-006f788ab494@cis-broadband.com> Message-ID: <007501d6169a$a6bd0b30$f4372190$@LNAINC.com> Dave - Not as much for improved performance as to get the very annoying relay clatter out of the shack, and back up into the attic where I don't have to listen to it. ? 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of David Gilbert Sent: Sunday, April 19, 2020 1:17 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] KATxxx Remote Tuner Why? Specifically (numbers please), what would it gain you that would be cost effective versus other alternatives? 73, Dave AB7E On 4/19/2020 8:52 AM, Lyn Norstad wrote: > > That being said, a ?remote? version of the KAT500 (or a KAT1500) would be of immense interest to me ? so I will follow this thread closely. > > > > 73 > > Lyn, > > W0LEN > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 vk4tux at gmail.com Sun Apr 19 19:24:29 2020 From: vk4tux at gmail.com (Adrian) Date: Mon, 20 Apr 2020 09:24:29 +1000 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: When you say 'blow' are you saying it short circuits internally or open circuits internally due to the event????? ? Adrian Fewster On 20/4/20 8:07 am, Christopher Hoover wrote: > You might want to replace the bridge rectifier in that new 35A power supply. > > Yep, right out of the box. > > At some point, Astron started shipping RS-35A's with a 25A bridge > rectifier. They paralleled two out of four of the 25A diodes twice over > to make, supposedly, a pair of 50A diodes for center-tapped full-wave > rectification. That's not good engineering practice as the diodes in each > pair will not share current equally because of differences in Vf and > tempco. Once one blow, the other will blow shortly after. > > After I fixed my own RS-35A with this problem, I've helped several other > hams fix this same problem in theirs. Not a random sample, as this is just > folks on my local machine and in local clubs. > > You can get a 50A bridge in the same package for under $3. > > Perhaps Astron has fixed the problem since .... > > 73 de AI6KG -ch > > > > > On Thu, Apr 16, 2020 at 10:28 AM Ray Albers wrote: > >> Many to all who posted/responded to my recent post about an electrolytic >> capacitor failure in my power supply. Lots of very interesting reading >> about peoples' industry experiences - thank you! >> >> Several have pointed out that using a 20A supply with my K3/100 is pushing >> close to (or over!) the limit. Even though I am measuring just 16A at the >> power level I'm running (and not running anything but the K3 on this >> supply) I agree that I'm skirting the edges. So even though I've been >> getting away with it for a long time, this morning I ordered a 35A supply. >> I'll probably sleep better. >> >> 73 >> Ray K2HYD >> >> < >> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon >> Virus-free. >> www.avast.com >> < >> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link >> <#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 ch at murgatroid.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 tjerhardt at sbcglobal.net Sun Apr 19 19:36:44 2020 From: tjerhardt at sbcglobal.net (Terry E) Date: Sun, 19 Apr 2020 16:36:44 -0700 (MST) Subject: [Elecraft] KAT500 & KPA500 Message-ID: <1587339404285-0.post@n2.nabble.com> I am looking for good cond used KAT500 and KPA500 -- Sent from: http://elecraft.365791.n2.nabble.com/ From ab2tc at arrl.net Sun Apr 19 19:37:50 2020 From: ab2tc at arrl.net (ab2tc) Date: Sun, 19 Apr 2020 16:37:50 -0700 (MST) Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <2D152B7C-3063-4CF2-B204-4DE7F98041A5@w2xj.net> References: <8E30F4A0-8D9E-4B88-87E3-AE0770769E25@rthorne.net> <2D152B7C-3063-4CF2-B204-4DE7F98041A5@w2xj.net> Message-ID: <1587339470165-0.post@n2.nabble.com> Hi, I know nothing about BC transmitters and antennas but in our world of amateur radio solid state transmitters it is imperative that the transmission line presents a load close to 50 ohms resistive to the transmitter. The transmitter doesn't care how this is accomplished as long as it sees a good match to 50 ohms. The simplest, of course, it to have a resonant antenna (close to 50 ohms resistive - resonance is no guarantee of a 50 ohm load) and a good low loss 50 ohm coax transmission line. If the antenna is far from 50 ohm resistive, a tuner (more correctly called a matching network) is required somewhere between the antenna and the transmitter. If the actual loss of the transmission line under the mismatched condition is not too high, it's perfectly OK to have the tuner close to the transmitter. If these conditions are not satisfied, the tuner is best located close to the antenna feed point with the extra cost and effort that involves. AB2TC - Knut W2xj wrote > You can get an AT-615B from Array Solutions now and do this. I put 10 in a > club station for our various wire arrays. They do everything you need. > > BTW I disagree about this 50 Ohm antenna thing. In my world of commercial > high powered broadcasting 30 MHz and under, there are almost never > resonant, matched 50 ohm arrays. > > Sent from my iPad > >> On Apr 19, 2020, at 8:41 AM, Richard Thorne < > rthorne@ > > wrote: >> > -- Sent from: http://elecraft.365791.n2.nabble.com/ From donwilh at embarqmail.com Sun Apr 19 19:46:39 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 19 Apr 2020 19:46:39 -0400 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: <62cfd372-abb1-aeaf-e4ee-1ec557f5e993@embarqmail.com> If the diode shorts, it Will cause excessive ripple from the half wave rectification. I suspect that the failure mode is an open causing the remaining diode to carry the full current, which will cause its eventual failure. In any case, paralleling two diodes without some form of resistance in series will be a prescription for failure. 73, Don W3FPR On 4/19/2020 7:24 PM, Adrian wrote: > When you say 'blow' are you saying it short circuits internally or open > circuits internally due to the event????? ? > > From robertwschumacher at yahoo.com Sun Apr 19 19:46:48 2020 From: robertwschumacher at yahoo.com (Bob Schumacher) Date: Sun, 19 Apr 2020 19:46:48 -0400 Subject: [Elecraft] Elecraft Digest, Vol 192, Issue 20 In-Reply-To: References: Message-ID: <01336E37-117D-4952-B37A-683788B5DB8D@yahoo.com> Regarding K4 Updates: Chuck KE9UW has a good idea. What he is really suggesting is that the K4 be remotely operated by an iPad with the K4 control panel replicated on the touch screen. We know that Flex Radio has this with the 6400/6600 series. Will this be available with the K4? W9DBR Sent from my iPad > On Apr 19, 2020, at 4:38 PM, elecraft-request at mailman.qth.net wrote: > > ?Send Elecraft mailing list submissions to > elecraft at mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.qth.net/mailman/listinfo/elecraft > or, via email, send a message with subject or body 'help' to > elecraft-request at mailman.qth.net > > You can reach the person managing the list at > elecraft-owner at mailman.qth.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Elecraft digest..." > > > Today's Topics: > > 1. K-4 capabilities (Art Suberbielle) > 2. Re: KX2 sluggish/intermittent VFO display (ab2tc) > 3. Re: K-4 capabilities (Doug Turnbull) > 4. KX-2 ATU not working (Peter West) > 5. KX2 With W9RAN "Versatile T/R Switch" for SDR (James Bennett) > 6. Re: K3 Utility vs macOS Catalina (David Ferrington, M0XDF) > 7. Re: K-4 capabilities (Ken B) > 8. Re: KATxxx Remote Tuner (Jim Brown) > 9. Re: K-4 capabilities (Mike VE3YF) > 10. Re: KATxxx Remote Tuner (David Gilbert) > 11. Re: KATxxx Remote Tuner (David Gilbert) > 12. Re: K-4 capabilities (Doug Turnbull) > 13. Re: K-4 capabilities (Barry LaZar) > 14. Re: K4 capabilities (Ralph Parker) > 15. Re: K4 capabilities (David Bunte) > 16. K4 (RALPH TURK) > 17. Some K4 updates from the engineering department (Wayne Burdick) > 18. Re: K-4 capabilities (Wayne Burdick) > 19. Re: Some K4 updates from the engineering department > (Richard Zalewski) > 20. Re: Some K4 updates from the engineering department > (hawley, charles j jr) > 21. Re: Some K4 updates from the engineering department (Rick NK7I) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 19 Apr 2020 11:35:34 -0500 > From: Art Suberbielle > To: Elecraft list > Subject: [Elecraft] K-4 capabilities > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > As we all await the arrival of the K-4, I'm wondering if the radio will > "remember" all of the settings per band. Specifically, I use different RF > settings per band and have to remember to reset the RF as I go from 160 to > 20, for example. Will these settings and AF gain, etc be recalled per band? > > Wayne, et al, tell us more about what you've been doing on the software > design side of the K-4 while "on vacation" at home? > > 73, > Art KZ5D > > > ------------------------------ > > Message: 2 > Date: Sun, 19 Apr 2020 09:49:40 -0700 (MST) > From: ab2tc > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KX2 sluggish/intermittent VFO display > Message-ID: <1587314980148-0.post at n2.nabble.com> > Content-Type: text/plain; charset=UTF-8 > > Hi, > > This doesn't sound like an encoder problem to me. Encoders have no memory, > so if the radio eventually responds to the encoder pulses and displays the > correct frequency after a delay, that delay must have occurred in the > microcontroller itself or possibly in the display module if it is an > "intelligent" one. To me it sounds if the KX2 microcontroller occasionally > gets overloaded and sluggish in responding to inputs. > > Do you have anything connected to any ports, such as serial port, AUX port, > etc.? Pardon my ignorance on the KX2 here but most Elecraft radios, even the > smaller ones, have ports like these. I have seen in the past (maybe not with > an Elecraft product) radio brought to its knees from hyperactivity on a > serial port. Disconnect everything that is not essential to local (sitting > in front of) radio operation and see if the problem goes away. > > AB2TC - Knut > > > > Lyle Johnson wrote >> All encoders in the KX2 are soldered you the control panel board. >> >> 73, >> >> Lyle KK7P >> >> Sent from my iPhone >> >>> On Apr 19, 2020, at 3:57 AM, Heinz Baertschi < > >> heinz.baertschi@ > >> > wrote: >>> >>> ? >>> Thanks Tom, interesting to know. >>> >>> *When troubleshooting it would still be of great help to know how the KX2 >>> encoder is connected to the main bord - plugged in or soldered?* >>> >>> 73, >>> Heinz HB9BCB >>> >>> >>> >>> Tommy wrote >>>> I have seen the same on my KX2, while dialing it seems to freeze at >>>> times for a second or so at a time. Even after being on only a few >>>> minutes. Kind of annoying but not too worrying to me. At least for now. >>>> Serial # 01927 >>>> >>>> 73 de Tom KB2SMS >>>> >>>> >>>>>> On 4/18/20 10:44 AM, Heinz Baertschi wrote: >>> >> >> >> >> >> >> -- >> Sent from: http://elecraft.365791.n2.nabble.com/ >> >> >> ------------------------------ >> >> Message: 3 >> Date: Sun, 19 Apr 2020 16:57:57 -0000 >> From: "Doug Turnbull" >> To: "'Art Suberbielle'" , "'Elecraft list'" >> >> Subject: Re: [Elecraft] K-4 capabilities >> Message-ID: <014401d6166b$ad2c1f30$07845d90$@net1.ie> >> Content-Type: text/plain; charset="us-ascii" >> >> Wayne, >> In these times of lockdown some of us are buoyed up with the prospect of >> the new K4. Well some of the fortunate who are waiting for early >> delivery. It is a bit like waiting for Santa as a kid. When a toy >> catalogue came in the door I devoured it; well maybe these catalogues are a >> thing of the past. Nonetheless, anything you can tell us about this radio >> just gives us something to look forward to. I see from the back of QST >> that the Kenwood TS 890S has some pretty nice features and impressive >> specifications. It will be most interesting to see how the K4 stacks up. >> Will Porsche surpass Jaguar again and claim pole position? The K4 is a >> big hope for the future. Tell us what you can, we need bedtime stories to >> fall asleep dreaming over. >> >> 73 Doug EI2CN >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On >> Behalf Of Art Suberbielle >> Sent: Sunday 19 April 2020 16:36 >> To: Elecraft list >> Subject: [Elecraft] K-4 capabilities >> >> As we all await the arrival of the K-4, I'm wondering if the radio will >> "remember" all of the settings per band. Specifically, I use different RF >> settings per band and have to remember to reset the RF as I go from 160 to >> 20, for example. Will these settings and AF gain, etc be recalled per band? >> >> Wayne, et al, tell us more about what you've been doing on the software >> design side of the K-4 while "on vacation" at home? >> >> 73, >> Art KZ5D >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html Message >> delivered to turnbull at net1.ie >> >> >> >> ------------------------------ >> >> Message: 4 >> Date: Sun, 19 Apr 2020 12:59:47 -0400 >> From: Peter West >> To: elecraft at mailman.qth.net >> Subject: [Elecraft] KX-2 ATU not working >> Message-ID: >> Content-Type: text/plain; charset=us-ascii >> >> I can hear the ATU in my KX-2 running when the ATU button is pushed but it is not changing the SWR. An Elecraft T1 works and lowers the SWR. Any thoughts or is this a mail-in repair solution? >> >> 73 - Peter - VE3HG >> >> ------------------------------ >> >> Message: 5 >> Date: Sun, 19 Apr 2020 10:18:03 -0700 >> From: James Bennett >> To: Elecraft Reflector Reflector >> Subject: [Elecraft] KX2 With W9RAN "Versatile T/R Switch" for SDR >> Message-ID: >> Content-Type: text/plain; charset=utf-8 >> >> Hi All - wondering if any of you KX2 (or even KX3) owners have built and are using the W9RAN "Versatile T/R Switch for SDRs and Vintage Radios? featured on page 30 of the December 2018 issue of QST? >> >> I enjoy the P3 that I use with my K3 and sure miss ?seeing? the band when I use the little QRP rig here in the shack. I have an RSPplay RSPpro2 SDR connected to a Mac Mini and a 32? monitor and would like to share my antenna system between the SDR and the KX2. This would allow me to ?look" at a particular band with the SDR and then tune the KX2 to a desired spot I found on the SDR. >> >> I got the T/R Switch kit from W9RAN on Saturday and have not yet started building it. Based on the schematic in QST, it appears that as built, one cannot listen to the KX2 receiver; the antenna is connected to the SDR until the transmitter is keyed. I thought maybe I could jumper pins 14 and 11 at the T/R relay on the board, or use a coax Tee so that the KX2 would always be connected to the antenna. >> >> Thoughts?? >> >> Jim / W6JHB >> >> ------------------------------ >> >> Message: 6 >> Date: Sun, 19 Apr 2020 18:23:41 +0100 >> From: "David Ferrington, M0XDF" >> To: John Woodard >> Cc: Don Putnick , ElecraftList >> >> Subject: Re: [Elecraft] K3 Utility vs macOS Catalina >> Message-ID: >> Content-Type: text/plain; charset=utf-8 >> >> Sorry, if someone mentioned this, but the original KUSB uses a Prolific chipset. >> That?s always been temperamental. Plugable.com have drivers for 10.15.3 but you have to buy them and I haven?t tried them. >> >> 73 de David, M0XDF >> The difference between genius and stupidity is that genius has its limits. -- Albert Einstein >> >> On 28 Mar 2020, at 16:08, John Woodard wrote: >> >> Hi Don, >> I just upgraded to 10.15.4 and launched K3 Utility. It loaded fine, but >> I noticed that the options under the Configuration and Calibration tabs >> were grayed out. I switched to the Port tab and selected Test >> Communications. When I got the positive response back from the K3, the >> options under Configuration and Calibration were no longer grayed out. >> Everything seems to be working fine now. >> >> 73 de John, WK8A >> >>> On Fri, Mar 27, 2020 at 7:05 PM Don Putnick > wrote: >>> >>> Hi all, >>> I'm working with Rob at Elecraft on this, but I'm trying to gather more >>> data for us. When I open the K3 Utility under Catalina, nothing is >>> displayed. If I go down to the dock, right click on the utility, then >>> select "Show all windows", the utility main screen opens. BUT if I click on >>> the screen, it closes immediately. The KAT500 Utility works just fine, so I >>> don't think its the usb-to-serial cable or the driver. And the K3 Utility >>> works correctly under macOS Sierra. Anyone else experiencing this? >>> 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 john.l.woodard 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 > > > ------------------------------ > > Message: 7 > Date: Sun, 19 Apr 2020 17:27:02 +0000 (UTC) > From: Ken B > To: "turnbull at net1.ie" , 'Art Suberbielle' > , 'Elecraft list' > Subject: Re: [Elecraft] K-4 capabilities > Message-ID: <987471551.3122724.1587317222116 at mail.yahoo.com> > Content-Type: text/plain; charset=UTF-8 > > Anxiously awaiting it.? ?There was promises of more and frequent conversation unless I am mistaken.? ?I paid for it in full and am not going to cancel it but would like more information > Thank youWB8PKK > > Sent from Yahoo Mail on Android > > On Sun, Apr 19, 2020 at 1:09 PM, Doug Turnbull wrote: Wayne, > ? ? In these times of lockdown some of us are buoyed up with the prospect of > the new K4.? ? Well some of the fortunate who are waiting for early > delivery.? ? It is a bit like waiting for Santa as a kid.? When a toy > catalogue came in the door I devoured it; well maybe these catalogues are a > thing of the past.? Nonetheless, anything you can tell us about this radio > just gives us something to look forward to.? ? I see from the back of QST > that the Kenwood TS 890S has some pretty nice features and impressive > specifications.? ? It will be most interesting to see how the K4 stacks up. > Will Porsche surpass Jaguar again and claim pole position?? ? The K4 is a > big hope for the future.? ? Tell us what you can, we need bedtime stories to > fall asleep dreaming over. > > ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? 73 Doug EI2CN > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Art Suberbielle > Sent: Sunday 19 April 2020 16:36 > To: Elecraft list > Subject: [Elecraft] K-4 capabilities > > As we all await the arrival of the K-4, I'm wondering if the radio will > "remember" all of the settings per band. Specifically, I use different RF > settings per band and have to remember to reset the RF as I go from 160 to > 20, for example. Will these settings and AF gain, etc be recalled per band? > > Wayne, et al, tell us more about what you've been doing on the software > design side of the K-4 while "on vacation" at home? > > 73, > Art KZ5D > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to turnbull at net1.ie > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to backhoeken at yahoo.com > > > > ------------------------------ > > Message: 8 > Date: Sun, 19 Apr 2020 10:41:43 -0700 > From: Jim Brown > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KATxxx Remote Tuner > Message-ID: > > Content-Type: text/plain; charset=utf-8; format=flowed > >> On 4/19/2020 8:51 AM, ab2tc wrote: >> I totally agree with your last statement about the tuner placement. > > The importance of a tuner being at the feedpoint depends entirely on the > antenna, the frequency(ies), and the feedline. The lower the operating > frequency, and lower the feedline loss characteristics, and the lower > the mismatch, a tuner in the shack can work quite well at moderate power > levels. AD5X, who does product reviews for ARRL, reviewed the "43 ft > vertical," which is notoriously difficult to match. One solution he > found was a 4:1 unun at the feedpoint and 1/2-in hardline to the shack. > For high power on 160 and 80M, he used a tuner at the feedpoint. > > Some years ago, I successfully loaded a vertical on 80M that was > resonant on 160M, hence a VERY high impedance at the feedpoint. The > feedline was RG8 and only about 40 ft long, so I was able to load it > quite successfully with a Ten Tec 238 tuner in the shack and a legal > limit Ten Tec tube amp. > > On 60M, I'm currently loading a high 80M dipole fed with 160 ft of RG11 > using the tuner in the KPA1500. The amp, of course, is throttled back to > less than 100W. I'm not the loudest signal on the band, but I've worked > into EU and SA in a few evenings on the band. > > 73, Jim K9YC > > > ------------------------------ > > Message: 9 > Date: Sun, 19 Apr 2020 17:57:10 +0000 > From: Mike VE3YF > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] K-4 capabilities > Message-ID: <394787b0-c657-43f3-193a-f5d266035148 at ve3yf.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > Yes getting some more info would be great. I have been bugging the boys > at Elecraft for an electronic copy of the manual, but nothing yet. I > have all the cabling done and a spot cleared on the desk beside my > KPA1500 for either my K4D or K4HD, I too have paid the full amount and > just waiting for the early May date when California will ultimately > decide if people can go back to work or will have to stay isolated > further. I think from reading everything hinges on that time frame. > > In the meantime I guess we will have to wait and stare at pictures of > the K4 Front panel. > > -- > > *73 De Mike* > *VE3YF > > _/http://www.ve3yf.com/_* > > > > ------------------------------ > > Message: 10 > Date: Sun, 19 Apr 2020 11:11:58 -0700 > From: David Gilbert > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KATxxx Remote Tuner > Message-ID: <980f0fdb-f03a-7770-7d1e-b1b4e01ad103 at cis-broadband.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > > I don't think that's actually true in most cases.? For example, a load > of 35 - j45 gives a 3:1 SWR at the load for 50 ohm coax, and the > additional line loss at 14 MHz due to SWR over 200 feet of LMR-400 > (moderate cost) is about 0.5 dB. > > In most cases with typical antennas and decent feedline, a tuner is more > about making your rig or amplifier happy, and for that it can be in the > shack. > > Unless of course you're talking about some random piece of wire with a > 10:1 SWR, but even then the extra loss due to SWR for the 200 feet of > LMR-400 is less than 2.5 dB at 14 MHz.? The best reason I can think of > for a tuner in that case is to keep the RF voltage from being excessive > at high power.? If you're obsessive about 50 ohm matched antennas I > doubt that is the case for you, and if it was me I'd put the $1,000+ > dollars it would probably cost for a stand alone high power remote tuner > capable of handling a 10:1 SWR to better use on the antennas themselves. > > 73, > Dave ? AB7E > > > >> On 4/19/2020 5:40 AM, Richard Thorne wrote: >> I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. >> >> Rich - N5ZC > > > > ------------------------------ > > Message: 11 > Date: Sun, 19 Apr 2020 11:16:51 -0700 > From: David Gilbert > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KATxxx Remote Tuner > Message-ID: <50f98ffa-8656-1ce5-af95-006f788ab494 at cis-broadband.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > > Why?? Specifically (numbers please), what would it gain you that would > be cost effective versus other alternatives? > > 73, > Dave?? AB7E > > > > >> On 4/19/2020 8:52 AM, Lyn Norstad wrote: >> >> That being said, a ?remote? version of the KAT500 (or a KAT1500) would be of immense interest to me ? so I will follow this thread closely. >> >> >> >> 73 >> >> Lyn, >> >> W0LEN >> >> > > > > ------------------------------ > > Message: 12 > Date: Sun, 19 Apr 2020 18:37:15 -0000 > From: "Doug Turnbull" > To: "'Mike VE3YF'" , > Subject: Re: [Elecraft] K-4 capabilities > Message-ID: <016501d61679$8c7b40f0$a571c2d0$@net1.ie> > Content-Type: text/plain; charset="us-ascii" > > Hello Mike and friends, > Well you are not in the EU and do not need to wait for CE approval. > The start of this process can only begin as I understand with a production > model. Until CE approval is obtained Elecraft can not shirt to the EU. > I am not complaining about EI being in the EU but am anxious. I suppose > one could bring one back from the USA on a plane and declare it in the > airport but there are no flights out of EI to USA for such purposes these > days. My radio is also paid for and ultimately it will be the K4HD. > One can add the "superhet ?" front end later when it becomes available. > > 73 Doug EI2CN > > PS this is what happens to one who is cocooned. Over 70s in EI are not > even supposed to leave their property to go grocery shopping > ; this is something neighbours are expected to do. > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of Mike VE3YF > Sent: Sunday 19 April 2020 17:57 > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] K-4 capabilities > > Yes getting some more info would be great. I have been bugging the boys at > Elecraft for an electronic copy of the manual, but nothing yet. I have all > the cabling done and a spot cleared on the desk beside my > KPA1500 for either my K4D or K4HD, I too have paid the full amount and just > waiting for the early May date when California will ultimately decide if > people can go back to work or will have to stay isolated further. I think > from reading everything hinges on that time frame. > > In the meantime I guess we will have to wait and stare at pictures of the K4 > Front panel. > > -- > > *73 De Mike* > *VE3YF > > _/http://www.ve3yf.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 turnbull at net1.ie > > > > ------------------------------ > > Message: 13 > Date: Sun, 19 Apr 2020 14:41:28 -0400 > From: Barry LaZar > To: Art Suberbielle > Cc: Elecraft list > Subject: Re: [Elecraft] K-4 capabilities > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > And, how will I be able to interface CW Skimmer for contesting? Will there > be a I&Q output available in MME format as there will be no IF. > > 73, > Barry > K3NDM > >> On Sun, Apr 19, 2020, 12:37 PM Art Suberbielle wrote: >> >> As we all await the arrival of the K-4, I'm wondering if the radio will >> "remember" all of the settings per band. Specifically, I use different RF >> settings per band and have to remember to reset the RF as I go from 160 to >> 20, for example. Will these settings and AF gain, etc be recalled per band? >> >> Wayne, et al, tell us more about what you've been doing on the software >> design side of the K-4 while "on vacation" at home? >> >> 73, >> Art KZ5D >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 >> > > > ------------------------------ > > Message: 14 > Date: Sun, 19 Apr 2020 11:44:54 -0700 > From: Ralph Parker > To: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] K4 capabilities > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > >> In the meantime I guess we will have to wait and stare at pictures of > the K4 Front panel. > > While anxiously waiting in line for the KPA500 to be released, I printed out a picture of the front panel > of the '500, cut it out and placed it on the shelf where the '500 would go. Then I could pretend that > the station was complete. > Almost as good as the real thing! > > VE7XF > > > > ------------------------------ > > Message: 15 > Date: Sun, 19 Apr 2020 15:08:05 -0400 > From: David Bunte > To: Ralph Parker > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] K4 capabilities > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > Ralph - > > I love that story. When I was in high school I saw a full page photo of the > Hallicrafters SX-101A in CQ Magazine. I cut out that photo and had it taped > to my desk while I finished saving for that beast of a receiver. > > Dave - K9FN > > On Sun, Apr 19, 2020 at 2:46 PM Ralph Parker wrote: > >>> In the meantime I guess we will have to wait and stare at pictures of >> the K4 Front panel. >> >> While anxiously waiting in line for the KPA500 to be released, I printed >> out a picture of the front panel >> of the '500, cut it out and placed it on the shelf where the '500 would >> go. Then I could pretend that >> the station was complete. >> Almost as good as the real thing! >> >> VE7XF >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to dpbunte at gmail.com >> > > > ------------------------------ > > Message: 16 > Date: Sun, 19 Apr 2020 13:31:07 -0600 (MDT) > From: RALPH TURK > To: Elecraft Reflector > Subject: [Elecraft] K4 > Message-ID: <1941442144.68625.1587324668212 at connect.xfinity.com> > Content-Type: text/plain; charset=UTF-8 > > Wayne et all > My only concern before I order a K4 is how it will work with two high power > AM transmitters near me. > 10KW day,1kw night KVOI south of me and a 50kw day only KUAT AM north of me. > At some time, I will need to borrow or rent a k4 for a week and see how it behaves > The majority of my operation is between 2-3.5 Mhz, 4 to 7mhz, 7.3-10mhz, 11mhz to14mhz. > I also use my radio on most ham bands. I currently use a K3 with all bells and 1000MP > The MP seems to handle the intermod better then the k3 > The intermod is not caused within the radios but cause by rusty chainlink fence, poor power line > grounds etc. My antennas are not the problem. I tried a sharp cutoff filter for everything below > 3.5mhz. No positive measurable results. > > Ralph, W7HSG, AFA9RT > 520-444-6610 > > ------------------------------ > > Message: 17 > Date: Sun, 19 Apr 2020 12:46:21 -0700 > From: Wayne Burdick > To: Elecraft Reflector > Subject: [Elecraft] Some K4 updates from the engineering department > Message-ID: > Content-Type: text/plain; charset=us-ascii > > Greetings from locked-down California.... I hope everyone, near and far, is staying safe! > > I thought I'd take a break from playing with the K4 and tweaking firmware to give everyone a status report from the engineering side. (Eric has been keeping everyone informed about how Elecraft has been affected by the pandemic more generally.) > > These musings are in no particular order. I hope they help satisfy those who recently posted with questions, info-cravings, etc. > > * * * > > Reference Oscillator > > The K4 includes a stable internal TXCO, standard, as well as the ability to lock to an external 10 MHz reference. We just completed a round of testing on this feature. > > The internal TCXO is accurate to within +/- .28 ppm with no calibration and no external reference connected. There's a menu entry for dialing this in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external reference will hold it even closer, and of course keep it there over an even wider temperature range. > > Panadapter Controls > > Thanks to the efforts of our [working-at-home] software team, the panadapter controls just keep getting better. When you tap DISPLAY, you're presented with 14 easy to use display functions. But we took things a step further by allowing you to specify whether to adjust the current parameter on LCD, EXT, or both (when an external monitor is attached), and on main, sub, or both (when in dual-display mode). You can independently specify single or dual-pan for LCD and external monitor. For example, you could have dual-Pan on a large HDMI monitor, while setting the LCD to monitor just main or sub RX. > > Stereo Audio > > Receive audio provides independent left and right channels for both headphones and external speakers. When used in single-receive mode, this allows you to use simulated stereo or "pitch mapping"-- both very effective at relieving listening fatigue. I've been using this a lot in DXing and QRP work. Full stereo also comes into play in diversity mode, when listening to pileups, or just monitoring two separate bands. Even with a basic K4, the two receivers can be set to any two bands, and you can operate cross-band split. The K4D adds a second set of band-pass filters and a second A-to-D converter to greatly improve out-of-band rejection when monitoring different bands. > > Receive Antenna Controls > > We recently made some improvements in this area. In addition to main RX ant and sub RX ant selection switches, there are now separate icons showing which antennas are in use: one for main RX, one for sub RX, and one for TX antenna. Main and sub receivers default to the TX antenna, but you can select any of the antenna jacks for assignment to each receiver independently. This updates the icons accordingly. You can also assign names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I have names for the three antennas connected to my KAT4 ATU, as well as "SIG GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. > > RF Gain Controls > > The ATTN switch brings up a selection tool that allows you to turn the attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As with all receive and transmit controls, these settings are stored per-band and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, with digital readout) and preamp setting (off/pre1/pre2). All gain settings are now taken into account when calculating S-meter and panadapter reference levels. > > Miscellaneous Controls > > Compared the the K3S, the K4 has numerous additional controls, resulting in a lot less use of the menu. Each receiver has a collection of per-mode settings (tap MAIN RX or SUB RX, respectively), as does the transmitter (tap the TX button). There are dedicated switches for TUNE LP (user-specified low-power TUNE setting), REM ANT (for future control of remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user functions, Fn 1-14, via a touch function), and a separate audio BALance knob function, the behavior of which could be adapted to various operator needs in the future. > > Touch Controls > > We're sure you'll find, as we have, that the K4's touch screen interface is fast and convenient to use. To capitalize on this, we've been adding new touch features. To highlight a few: Tapping the RIT/XIT offset window turns RIT on/off (per receiver). Tapping the antenna icons brings up their selection widgets, with planned custom behavior for quick A/B testing. The Status Area of the LCD normally shows time and date, but you can tap it to select from various alternatives, including system parameters (like supply voltage/current) or per-receiver absolute signal levels in dBm. Tapping the per-RX filter graphics switches between per-mode FL1/2/3 settings. > > * * * > > I have to admit that it's frustrating to be sequestered at home, making only the occasional quick trip to the office or to visit coworkers. Work, like life, has become more challenging for all of us. But the good news for everyone waiting for a K4 is that a handful of testers are using them every day, so that when you do get your hands on one, it'll be rock-solid. > > Believe me, we're just as anxious for that day to arrive as you are. Maybe more :) > > 73, > Wayne > N6KR > > > > > > > > > > > ------------------------------ > > Message: 18 > Date: Sun, 19 Apr 2020 12:48:06 -0700 > From: Wayne Burdick > To: Barry LaZar > Cc: Art Suberbielle , Elecraft Reflector > > Subject: Re: [Elecraft] K-4 capabilities > Message-ID: > Content-Type: text/plain; charset=us-ascii > > This is definitely planned. > > Wayne > > >> On Apr 19, 2020, at 11:41 AM, Barry LaZar wrote: >> >> And, how will I be able to interface CW Skimmer for contesting? Will there >> be a I&Q output available in MME format as there will be no IF. >> >> 73, >> Barry >> K3NDM >> >>> On Sun, Apr 19, 2020, 12:37 PM Art Suberbielle wrote: >>> >>> As we all await the arrival of the K-4, I'm wondering if the radio will >>> "remember" all of the settings per band. Specifically, I use different RF >>> settings per band and have to remember to reset the RF as I go from 160 to >>> 20, for example. Will these settings and AF gain, etc be recalled per band? >>> >>> Wayne, et al, tell us more about what you've been doing on the software >>> design side of the K-4 while "on vacation" at home? >>> >>> 73, >>> Art KZ5D >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 > > > > ------------------------------ > > Message: 19 > Date: Sun, 19 Apr 2020 12:53:39 -0700 > From: Richard Zalewski > To: Wayne Burdick > Cc: Elecraft Reflector > Subject: Re: [Elecraft] Some K4 updates from the engineering > department > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > Thank you very much. More updates like this will make your bankers (those > that pre-ordered) feel a lot better. Please keep it up and Stay Safe! > > 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 Sun, Apr 19, 2020 at 12:47 PM Wayne Burdick wrote: >> >> Greetings from locked-down California.... I hope everyone, near and far, >> is staying safe! >> >> I thought I'd take a break from playing with the K4 and tweaking firmware >> to give everyone a status report from the engineering side. (Eric has been >> keeping everyone informed about how Elecraft has been affected by the >> pandemic more generally.) >> >> These musings are in no particular order. I hope they help satisfy those >> who recently posted with questions, info-cravings, etc. >> >> * * * >> >> Reference Oscillator >> >> The K4 includes a stable internal TXCO, standard, as well as the ability >> to lock to an external 10 MHz reference. We just completed a round of >> testing on this feature. >> >> The internal TCXO is accurate to within +/- .28 ppm with no calibration >> and no external reference connected. There's a menu entry for dialing this >> in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external >> reference will hold it even closer, and of course keep it there over an >> even wider temperature range. >> >> Panadapter Controls >> >> Thanks to the efforts of our [working-at-home] software team, the >> panadapter controls just keep getting better. When you tap DISPLAY, you're >> presented with 14 easy to use display functions. But we took things a step >> further by allowing you to specify whether to adjust the current parameter >> on LCD, EXT, or both (when an external monitor is attached), and on main, >> sub, or both (when in dual-display mode). You can independently specify >> single or dual-pan for LCD and external monitor. For example, you could >> have dual-Pan on a large HDMI monitor, while setting the LCD to monitor >> just main or sub RX. >> >> Stereo Audio >> >> Receive audio provides independent left and right channels for both >> headphones and external speakers. When used in single-receive mode, this >> allows you to use simulated stereo or "pitch mapping"-- both very effective >> at relieving listening fatigue. I've been using this a lot in DXing and QRP >> work. Full stereo also comes into play in diversity mode, when listening to >> pileups, or just monitoring two separate bands. Even with a basic K4, the >> two receivers can be set to any two bands, and you can operate cross-band >> split. The K4D adds a second set of band-pass filters and a second A-to-D >> converter to greatly improve out-of-band rejection when monitoring >> different bands. >> >> Receive Antenna Controls >> >> We recently made some improvements in this area. In addition to main RX >> ant and sub RX ant selection switches, there are now separate icons showing >> which antennas are in use: one for main RX, one for sub RX, and one for TX >> antenna. Main and sub receivers default to the TX antenna, but you can >> select any of the antenna jacks for assignment to each receiver >> independently. This updates the icons accordingly. You can also assign >> names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I >> have names for the three antennas connected to my KAT4 ATU, as well as "SIG >> GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. >> >> RF Gain Controls >> >> The ATTN switch brings up a selection tool that allows you to turn the >> attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As >> with all receive and transmit controls, these settings are stored per-band >> and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, >> with digital readout) and preamp setting (off/pre1/pre2). All gain settings >> are now taken into account when calculating S-meter and panadapter >> reference levels. >> >> Miscellaneous Controls >> >> Compared the the K3S, the K4 has numerous additional controls, resulting >> in a lot less use of the menu. Each receiver has a collection of per-mode >> settings (tap MAIN RX or SUB RX, respectively), as does the transmitter >> (tap the TX button). There are dedicated switches for TUNE LP >> (user-specified low-power TUNE setting), REM ANT (for future control of >> remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual >> A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user >> functions, Fn 1-14, via a touch function), and a separate audio BALance >> knob function, the behavior of which could be adapted to various operator >> needs in the future. >> >> Touch Controls >> >> We're sure you'll find, as we have, that the K4's touch screen interface >> is fast and convenient to use. To capitalize on this, we've been adding new >> touch features. To highlight a few: Tapping the RIT/XIT offset window turns >> RIT on/off (per receiver). Tapping the antenna icons brings up their >> selection widgets, with planned custom behavior for quick A/B testing. The >> Status Area of the LCD normally shows time and date, but you can tap it to >> select from various alternatives, including system parameters (like supply >> voltage/current) or per-receiver absolute signal levels in dBm. Tapping the >> per-RX filter graphics switches between per-mode FL1/2/3 settings. >> >> * * * >> >> I have to admit that it's frustrating to be sequestered at home, making >> only the occasional quick trip to the office or to visit coworkers. Work, >> like life, has become more challenging for all of us. But the good news for >> everyone waiting for a K4 is that a handful of testers are using them every >> day, so that when you do get your hands on one, it'll be rock-solid. >> >> Believe me, we're just as anxious for that day to arrive as you are. Maybe >> more :) >> >> 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 dick.w7zr at gmail.com >> > > > ------------------------------ > > Message: 20 > Date: Sun, 19 Apr 2020 20:10:51 +0000 > From: "hawley, charles j jr" > To: Wayne Burdick > Cc: Elecraft Reflector > Subject: Re: [Elecraft] Some K4 updates from the engineering > department > Message-ID: <7BEBD228-20B3-4113-A565-4519F5BDE8C4 at illinois.edu> > Content-Type: text/plain; charset="utf-8" > > When I read about the touch controls, I suddenly had an image in my mind of a small touch tablet on the desk that had all the controls on it that were on the K4 display. > Kind of a touch panel Kpod... > > Jack BMW Motorcycles > Chuck KE9UW > c-hawley at illinois.edu > > Sent from my iPad > >> On Apr 19, 2020, at 2:46 PM, Wayne Burdick wrote: >> >> ?Greetings from locked-down California.... I hope everyone, near and far, is staying safe! >> >> I thought I'd take a break from playing with the K4 and tweaking firmware to give everyone a status report from the engineering side. (Eric has been keeping everyone informed about how Elecraft has been affected by the pandemic more generally.) >> >> These musings are in no particular order. I hope they help satisfy those who recently posted with questions, info-cravings, etc. >> >> * * * >> >> Reference Oscillator >> >> The K4 includes a stable internal TXCO, standard, as well as the ability to lock to an external 10 MHz reference. We just completed a round of testing on this feature. >> >> The internal TCXO is accurate to within +/- .28 ppm with no calibration and no external reference connected. There's a menu entry for dialing this in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external reference will hold it even closer, and of course keep it there over an even wider temperature range. >> >> Panadapter Controls >> >> Thanks to the efforts of our [working-at-home] software team, the panadapter controls just keep getting better. When you tap DISPLAY, you're presented with 14 easy to use display functions. But we took things a step further by allowing you to specify whether to adjust the current parameter on LCD, EXT, or both (when an external monitor is attached), and on main, sub, or both (when in dual-display mode). You can independently specify single or dual-pan for LCD and external monitor. For example, you could have dual-Pan on a large HDMI monitor, while setting the LCD to monitor just main or sub RX. >> >> Stereo Audio >> >> Receive audio provides independent left and right channels for both headphones and external speakers. When used in single-receive mode, this allows you to use simulated stereo or "pitch mapping"-- both very effective at relieving listening fatigue. I've been using this a lot in DXing and QRP work. Full stereo also comes into play in diversity mode, when listening to pileups, or just monitoring two separate bands. Even with a basic K4, the two receivers can be set to any two bands, and you can operate cross-band split. The K4D adds a second set of band-pass filters and a second A-to-D converter to greatly improve out-of-band rejection when monitoring different bands. >> >> Receive Antenna Controls >> >> We recently made some improvements in this area. In addition to main RX ant and sub RX ant selection switches, there are now separate icons showing which antennas are in use: one for main RX, one for sub RX, and one for TX antenna. Main and sub receivers default to the TX antenna, but you can select any of the antenna jacks for assignment to each receiver independently. This updates the icons accordingly. You can also assign names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I have names for the three antennas connected to my KAT4 ATU, as well as "SIG GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. >> >> RF Gain Controls >> >> The ATTN switch brings up a selection tool that allows you to turn the attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As with all receive and transmit controls, these settings are stored per-band and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, with digital readout) and preamp setting (off/pre1/pre2). All gain settings are now taken into account when calculating S-meter and panadapter reference levels. >> >> Miscellaneous Controls >> >> Compared the the K3S, the K4 has numerous additional controls, resulting in a lot less use of the menu. Each receiver has a collection of per-mode settings (tap MAIN RX or SUB RX, respectively), as does the transmitter (tap the TX button). There are dedicated switches for TUNE LP (user-specified low-power TUNE setting), REM ANT (for future control of remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user functions, Fn 1-14, via a touch function), and a separate audio BALance knob function, the behavior of which could be adapted to various operator needs in the future. >> >> Touch Controls >> >> We're sure you'll find, as we have, that the K4's touch screen interface is fast and convenient to use. To capitalize on this, we've been adding new touch features. To highlight a few: Tapping the RIT/XIT offset window turns RIT on/off (per receiver). Tapping the antenna icons brings up their selection widgets, with planned custom behavior for quick A/B testing. The Status Area of the LCD normally shows time and date, but you can tap it to select from various alternatives, including system parameters (like supply voltage/current) or per-receiver absolute signal levels in dBm. Tapping the per-RX filter graphics switches between per-mode FL1/2/3 settings. >> >> * * * >> >> I have to admit that it's frustrating to be sequestered at home, making only the occasional quick trip to the office or to visit coworkers. Work, like life, has become more challenging for all of us. But the good news for everyone waiting for a K4 is that a handful of testers are using them every day, so that when you do get your hands on one, it'll be rock-solid. >> >> Believe me, we're just as anxious for that day to arrive as you are. Maybe more :) >> >> 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 c-hawley at illinois.edu > > ------------------------------ > > Message: 21 > Date: Sun, 19 Apr 2020 13:13:13 -0700 > From: Rick NK7I > To: "hawley, charles j jr" > Cc: Elecraft Reflector > Subject: Re: [Elecraft] Some K4 updates from the engineering > department > Message-ID: > Content-Type: text/plain; charset=utf-8 > > Simpler yet, use an appropriate size (for your desk) tablet to manage the K4. Then take that with you when you?re in another room, traveling, etc. > > Rick NK7I > > Smell Czech corruptions are inevitable > >> On Apr 19, 2020, at 1:11 PM, hawley, charles j jr wrote: >> >> ?When I read about the touch controls, I suddenly had an image in my mind of a small touch tablet on the desk that had all the controls on it that were on the K4 display. >> Kind of a touch panel Kpod... >> >> Jack BMW Motorcycles >> Chuck KE9UW >> c-hawley at illinois.edu >> >> Sent from my iPad >> >>>> On Apr 19, 2020, at 2:46 PM, Wayne Burdick wrote: >>> >>> ?Greetings from locked-down California.... I hope everyone, near and far, is staying safe! >>> >>> I thought I'd take a break from playing with the K4 and tweaking firmware to give everyone a status report from the engineering side. (Eric has been keeping everyone informed about how Elecraft has been affected by the pandemic more generally.) >>> >>> These musings are in no particular order. I hope they help satisfy those who recently posted with questions, info-cravings, etc. >>> >>> * * * >>> >>> Reference Oscillator >>> >>> The K4 includes a stable internal TXCO, standard, as well as the ability to lock to an external 10 MHz reference. We just completed a round of testing on this feature. >>> >>> The internal TCXO is accurate to within +/- .28 ppm with no calibration and no external reference connected. There's a menu entry for dialing this in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external reference will hold it even closer, and of course keep it there over an even wider temperature range. >>> >>> Panadapter Controls >>> >>> Thanks to the efforts of our [working-at-home] software team, the panadapter controls just keep getting better. When you tap DISPLAY, you're presented with 14 easy to use display functions. But we took things a step further by allowing you to specify whether to adjust the current parameter on LCD, EXT, or both (when an external monitor is attached), and on main, sub, or both (when in dual-display mode). You can independently specify single or dual-pan for LCD and external monitor. For example, you could have dual-Pan on a large HDMI monitor, while setting the LCD to monitor just main or sub RX. >>> >>> Stereo Audio >>> >>> Receive audio provides independent left and right channels for both headphones and external speakers. When used in single-receive mode, this allows you to use simulated stereo or "pitch mapping"-- both very effective at relieving listening fatigue. I've been using this a lot in DXing and QRP work. Full stereo also comes into play in diversity mode, when listening to pileups, or just monitoring two separate bands. Even with a basic K4, the two receivers can be set to any two bands, and you can operate cross-band split. The K4D adds a second set of band-pass filters and a second A-to-D converter to greatly improve out-of-band rejection when monitoring different bands. >>> >>> Receive Antenna Controls >>> >>> We recently made some improvements in this area. In addition to main RX ant and sub RX ant selection switches, there are now separate icons showing which antennas are in use: one for main RX, one for sub RX, and one for TX antenna. Main and sub receivers default to the TX antenna, but you can select any of the antenna jacks for assignment to each receiver independently. This updates the icons accordingly. You can also assign names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I have names for the three antennas connected to my KAT4 ATU, as well as "SIG GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. >>> >>> RF Gain Controls >>> >>> The ATTN switch brings up a selection tool that allows you to turn the attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As with all receive and transmit controls, these settings are stored per-band and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, with digital readout) and preamp setting (off/pre1/pre2). All gain settings are now taken into account when calculating S-meter and panadapter reference levels. >>> >>> Miscellaneous Controls >>> >>> Compared the the K3S, the K4 has numerous additional controls, resulting in a lot less use of the menu. Each receiver has a collection of per-mode settings (tap MAIN RX or SUB RX, respectively), as does the transmitter (tap the TX button). There are dedicated switches for TUNE LP (user-specified low-power TUNE setting), REM ANT (for future control of remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user functions, Fn 1-14, via a touch function), and a separate audio BALance knob function, the behavior of which could be adapted to various operator needs in the future. >>> >>> Touch Controls >>> >>> We're sure you'll find, as we have, that the K4's touch screen interface is fast and convenient to use. To capitalize on this, we've been adding new touch features. To highlight a few: Tapping the RIT/XIT offset window turns RIT on/off (per receiver). Tapping the antenna icons brings up their selection widgets, with planned custom behavior for quick A/B testing. The Status Area of the LCD normally shows time and date, but you can tap it to select from various alternatives, including system parameters (like supply voltage/current) or per-receiver absolute signal levels in dBm. Tapping the per-RX filter graphics switches between per-mode FL1/2/3 settings. >>> >>> * * * >>> >>> I have to admit that it's frustrating to be sequestered at home, making only the occasional quick trip to the office or to visit coworkers. Work, like life, has become more challenging for all of us. But the good news for everyone waiting for a K4 is that a handful of testers are using them every day, so that when you do get your hands on one, it'll be rock-solid. >>> >>> Believe me, we're just as anxious for that day to arrive as you are. Maybe more :) >>> >>> 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 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 rick.nk7i at gmail.com > > > ------------------------------ > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft at mailman.qth.net > http://mailman.qth.net/mailman/listinfo/elecraft > You must be a subscriber to post. > Elecraft web page: http://www.elecraft.com > > End of Elecraft Digest, Vol 192, Issue 20 > ***************************************** From ch at murgatroid.com Sun Apr 19 20:55:42 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Sun, 19 Apr 2020 17:55:42 -0700 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: opens in my limited experience. On Sun, Apr 19, 2020 at 4:26 PM Adrian wrote: > When you say 'blow' are you saying it short circuits internally or open > circuits internally due to the event ? > > > Adrian Fewster > > On 20/4/20 8:07 am, Christopher Hoover wrote: > > You might want to replace the bridge rectifier in that new 35A power > supply. > > > > Yep, right out of the box. > > > > At some point, Astron started shipping RS-35A's with a 25A bridge > > rectifier. They paralleled two out of four of the 25A diodes twice over > > to make, supposedly, a pair of 50A diodes for center-tapped full-wave > > rectification. That's not good engineering practice as the diodes in > each > > pair will not share current equally because of differences in Vf and > > tempco. Once one blow, the other will blow shortly after. > > > > After I fixed my own RS-35A with this problem, I've helped several other > > hams fix this same problem in theirs. Not a random sample, as this is > just > > folks on my local machine and in local clubs. > > > > You can get a 50A bridge in the same package for under $3. > > > > Perhaps Astron has fixed the problem since .... > > > > 73 de AI6KG -ch > > > > > > > > > > On Thu, Apr 16, 2020 at 10:28 AM Ray Albers wrote: > > > >> Many to all who posted/responded to my recent post about an electrolytic > >> capacitor failure in my power supply. Lots of very interesting reading > >> about peoples' industry experiences - thank you! > >> > >> Several have pointed out that using a 20A supply with my K3/100 is > pushing > >> close to (or over!) the limit. Even though I am measuring just 16A at > the > >> power level I'm running (and not running anything but the K3 on this > >> supply) I agree that I'm skirting the edges. So even though I've been > >> getting away with it for a long time, this morning I ordered a 35A > supply. > >> I'll probably sleep better. > >> > >> 73 > >> Ray K2HYD > >> > >> < > >> > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon > >> Virus-free. > >> www.avast.com > >> < > >> > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link > >> <#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 ch at murgatroid.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 ch at murgatroid.com From rick at tavan.com Sun Apr 19 21:14:27 2020 From: rick at tavan.com (Rick Tavan) Date: Sun, 19 Apr 2020 18:14:27 -0700 Subject: [Elecraft] K4 capabilities In-Reply-To: References: Message-ID: What's a complete station? ;-) /Rick N6XI On Sun, Apr 19, 2020 at 11:46 AM Ralph Parker wrote: > > While anxiously waiting in line for the KPA500 to be released, I printed > out a picture of the front panel > of the '500, cut it out and placed it on the shelf where the '500 would > go. > *Then I could pretend that the station was complete.* > Almost as good as the real thing! > > -- Rick Tavan Truckee and Saratoga, CA From W2xj at w2xj.net Sun Apr 19 21:56:33 2020 From: W2xj at w2xj.net (W2xj) Date: Sun, 19 Apr 2020 21:56:33 -0400 Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <1587339470165-0.post@n2.nabble.com> References: <1587339470165-0.post@n2.nabble.com> Message-ID: Please don?t talk down to me or many other of us. I?ve been in this hobby for over 60 years and I know how things worked both then and now. To answer your question about broadcast, many systems consist of series fed towers. In a practical world a tower presenting zero reactance is about 35 ohms and 50 ohm tower has reactance. Other heights have (generally) higher resistance and reactance. In all these cases an ATU at the tower. base is used to match both the coax and TX output. The other approach is a grounded tower with a unipole (or shunt feed) arrangement. Properly done the feed is tapped for zero reactance and the resistance is somewhere 250 ohms. Others tap for 50 ohms but the reactance is high. These arrangements also require an ATU at the tower base. On HF, the antenna is multiband and uses open wire feeder. Usually this goes straight to the TX which usually has a 300 ohm balanced output. These transmitters are still tube devices and their output networks accommodate the changing load. Sent from my iPad >> On Apr 19, 2020, at 7:39 PM, ab2tc wrote: > ?Hi, > > I know nothing about BC transmitters and antennas but in our world of > amateur radio solid state transmitters it is imperative that the > transmission line presents a load close to 50 ohms resistive to the > transmitter. The transmitter doesn't care how this is accomplished as long > as it sees a good match to 50 ohms. The simplest, of course, it to have a > resonant antenna (close to 50 ohms resistive - resonance is no guarantee of > a 50 ohm load) and a good low loss 50 ohm coax transmission line. If the > antenna is far from 50 ohm resistive, a tuner (more correctly called a > matching network) is required somewhere between the antenna and the > transmitter. If the actual loss of the transmission line under the > mismatched condition is not too high, it's perfectly OK to have the tuner > close to the transmitter. If these conditions are not satisfied, the tuner > is best located close to the antenna feed point with the extra cost and > effort that involves. > > AB2TC - Knut > > > > W2xj wrote >> You can get an AT-615B from Array Solutions now and do this. I put 10 in a >> club station for our various wire arrays. They do everything you need. >> >> BTW I disagree about this 50 Ohm antenna thing. In my world of commercial >> high powered broadcasting 30 MHz and under, there are almost never >> resonant, matched 50 ohm arrays. >> >> Sent from my iPad >> >>> On Apr 19, 2020, at 8:41 AM, Richard Thorne < > >> rthorne@ > >> > wrote: >> > > > > > > -- > 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 w2xj at w2xj.net From bob at ad7z.com Sun Apr 19 22:28:50 2020 From: bob at ad7z.com (B.) Date: Sun, 19 Apr 2020 19:28:50 -0700 Subject: [Elecraft] K4 features Message-ID: <002d01d616bb$6e173b40$4a45b1c0$@ad7z.com> Hi Folks, I was looking at the information on the Elecraft website regarding the K4 and its features and functions and either missed or could not find any reference to a couple of items I wanted to know about. Specifically, I was looking for confirmation of, or mention of, if the K4 has the same ability to record voice and CW to memory as does the K3s. Also, will the K4 have the 50 memory locations in it that the current P3 has for programming macros and if it does, will it be programmable the same way as the P3 or has the process been improved? Along that same line, will it be possible to save off the stored memory information (if there is any), to a file for reloading at a later time? I may have missed any reference to these subjects but could not find it on the Elecraft website. Maybe these have already been answered but I can't seem to locate them. Thanks for any help on this. 73, Bob AD7Z From ki5io at outlook.com Sun Apr 19 22:47:11 2020 From: ki5io at outlook.com (Nolan Kienitz) Date: Sun, 19 Apr 2020 19:47:11 -0700 (MST) Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: References: Message-ID: <1587350831643-0.post@n2.nabble.com> Wayne & Crew, Any granular details about the CW Keyer in the K4? Any possibility of embedding WinKeyer platform? CW Keying modes? Will you have Ultimatic, Ultimatic dit and Ultimatic dah added as options? 73 - ki5io Nolan Kienitz Texas ----- 73 - Nolan Kienitz, KI5IO -- Sent from: http://elecraft.365791.n2.nabble.com/ From scott.small at gmail.com Sun Apr 19 23:00:46 2020 From: scott.small at gmail.com (Tox) Date: Sun, 19 Apr 2020 20:00:46 -0700 Subject: [Elecraft] K4 features In-Reply-To: <002d01d616bb$6e173b40$4a45b1c0$@ad7z.com> References: <002d01d616bb$6e173b40$4a45b1c0$@ad7z.com> Message-ID: Iirc Eric's indicated it would have memory keyer/recorder, and ability to save station config to a usb key for multiop convenience. Look for the YouTube vid he recorded st the UK dealer a few months ago, think it was in there. Scott AD6YT On Sun, Apr 19, 2020, 7:29 PM B. wrote: > Hi Folks, > > I was looking at the information on the Elecraft website regarding the K4 > and its features and functions and either missed or could not find any > reference to a couple of items I wanted to know about. Specifically, I was > looking for confirmation of, or mention of, if the K4 has the same ability > to record voice and CW to memory as does the K3s. Also, will the K4 have > the > 50 memory locations in it that the current P3 has for programming macros > and > if it does, will it be programmable the same way as the P3 or has the > process been improved? Along that same line, will it be possible to save > off > the stored memory information (if there is any), to a file for reloading at > a later time? I may have missed any reference to these subjects but could > not find it on the Elecraft website. Maybe these have already been answered > but I can't seem to locate them. Thanks for any help on this. > > 73, Bob AD7Z > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to scott.small at gmail.com > From n6kr at elecraft.com Sun Apr 19 23:06:13 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 19 Apr 2020 20:06:13 -0700 Subject: [Elecraft] K4 features In-Reply-To: <002d01d616bb$6e173b40$4a45b1c0$@ad7z.com> References: <002d01d616bb$6e173b40$4a45b1c0$@ad7z.com> Message-ID: <40768ABC-BC70-4D21-BC9C-67A1918BF3C6@elecraft.com> > On Apr 19, 2020, at 7:28 PM, B. wrote: > > Hi Folks, > > I was looking at the information on the Elecraft website regarding the K4 > and its features and functions and either missed or could not find any > reference to a couple of items I wanted to know about. Specifically, I was > looking for confirmation of, or mention of, if the K4 has the same ability > to record voice and CW to memory as does the K3s. Yes, but more of it. > Also, will the K4 have the > 50 memory locations in it that the current P3 has for programming macros and > if it does, will it be programmable the same way as the P3 or has the > process been improved? Improved and extended and still in-progress. The number of memories could be expanded to meet any reasonable need. > Along that same line, will it be possible to save off > the stored memory information (if there is any), to a file for reloading at > a later time? Yes. You'll be able to save the entire radio configuration to a flash drive plugged into any of the three USB-A ports, or save configurations to remote hosts via Ethernet or USB. 73, Wayne N6KR From n6kr at elecraft.com Sun Apr 19 23:27:09 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 19 Apr 2020 20:27:09 -0700 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: <1587350831643-0.post@n2.nabble.com> References: <1587350831643-0.post@n2.nabble.com> Message-ID: > On Apr 19, 2020, at 7:47 PM, Nolan Kienitz wrote: > > Wayne & Crew, > > Any granular details about the CW Keyer in the K4? > > Any possibility of embedding WinKeyer platform? This is certainly possible, but not currently in the works. > > CW Keying modes? Will you have Ultimatic, Ultimatic dit and Ultimatic dah > added as options? At present the modes are Iambic A and B, like the K3S and our other transceivers. You can control the weight as well. W We'll be able to add other controls in the future. It'll be "sortof" democratic, i.e. we'll weight user request rate and feasibility when deciding what to add next. We're in it for the long haul...just as we were when we designed the K3. (The K4 is even more modular and extensible, by design.) 73, Wayne N6KR From jimk0xu at gmail.com Sun Apr 19 23:32:14 2020 From: jimk0xu at gmail.com (Jim Rhodes) Date: Sun, 19 Apr 2020 22:32:14 -0500 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: Or sometimes, just to get your attention, they will short out then explosively go open with a bang. The is usually no doubt figuring out which component is bad. On Sun, Apr 19, 2020, 19:56 Christopher Hoover wrote: > opens in my limited experience. > > On Sun, Apr 19, 2020 at 4:26 PM Adrian wrote: > > > When you say 'blow' are you saying it short circuits internally or open > > circuits internally due to the event ? > > > > > > Adrian Fewster > > > > On 20/4/20 8:07 am, Christopher Hoover wrote: > > > You might want to replace the bridge rectifier in that new 35A power > > supply. > > > > > > Yep, right out of the box. > > > > > > At some point, Astron started shipping RS-35A's with a 25A bridge > > > rectifier. They paralleled two out of four of the 25A diodes twice > over > > > to make, supposedly, a pair of 50A diodes for center-tapped full-wave > > > rectification. That's not good engineering practice as the diodes in > > each > > > pair will not share current equally because of differences in Vf and > > > tempco. Once one blow, the other will blow shortly after. > > > > > > After I fixed my own RS-35A with this problem, I've helped several > other > > > hams fix this same problem in theirs. Not a random sample, as this is > > just > > > folks on my local machine and in local clubs. > > > > > > You can get a 50A bridge in the same package for under $3. > > > > > > Perhaps Astron has fixed the problem since .... > > > > > > 73 de AI6KG -ch > > > > > > > > > > > > > > > On Thu, Apr 16, 2020 at 10:28 AM Ray Albers > wrote: > > > > > >> Many to all who posted/responded to my recent post about an > electrolytic > > >> capacitor failure in my power supply. Lots of very interesting > reading > > >> about peoples' industry experiences - thank you! > > >> > > >> Several have pointed out that using a 20A supply with my K3/100 is > > pushing > > >> close to (or over!) the limit. Even though I am measuring just 16A at > > the > > >> power level I'm running (and not running anything but the K3 on this > > >> supply) I agree that I'm skirting the edges. So even though I've been > > >> getting away with it for a long time, this morning I ordered a 35A > > supply. > > >> I'll probably sleep better. > > >> > > >> 73 > > >> Ray K2HYD > > >> > > >> < > > >> > > > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon > > >> Virus-free. > > >> www.avast.com > > >> < > > >> > > > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link > > >> <#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 ch at murgatroid.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 ch at murgatroid.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 > From rmcgraw at blomand.net Sun Apr 19 23:40:52 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 19 Apr 2020 22:40:52 -0500 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: I had a ham mention to me that this power supply blew up. He was somewhat annoyed when I ask if anyone was injured in the explosion. Folks, for us trying to assist with technical issues, please give complete and accurate descriptions. You will get better answers. Bob, K4TAX Sent from my iPhone > On Apr 19, 2020, at 10:33 PM, Jim Rhodes wrote: > > ?Or sometimes, just to get your attention, they will short out then > explosively go open with a bang. The is usually no doubt figuring out which > component is bad. > >> On Sun, Apr 19, 2020, 19:56 Christopher Hoover wrote: >> >> opens in my limited experience. >> >>> On Sun, Apr 19, 2020 at 4:26 PM Adrian wrote: >>> >>> When you say 'blow' are you saying it short circuits internally or open >>> circuits internally due to the event ? >>> >>> >>> Adrian Fewster >>> >>> On 20/4/20 8:07 am, Christopher Hoover wrote: >>>> You might want to replace the bridge rectifier in that new 35A power >>> supply. >>>> >>>> Yep, right out of the box. >>>> >>>> At some point, Astron started shipping RS-35A's with a 25A bridge >>>> rectifier. They paralleled two out of four of the 25A diodes twice >> over >>>> to make, supposedly, a pair of 50A diodes for center-tapped full-wave >>>> rectification. That's not good engineering practice as the diodes in >>> each >>>> pair will not share current equally because of differences in Vf and >>>> tempco. Once one blow, the other will blow shortly after. >>>> >>>> After I fixed my own RS-35A with this problem, I've helped several >> other >>>> hams fix this same problem in theirs. Not a random sample, as this is >>> just >>>> folks on my local machine and in local clubs. >>>> >>>> You can get a 50A bridge in the same package for under $3. >>>> >>>> Perhaps Astron has fixed the problem since .... >>>> >>>> 73 de AI6KG -ch >>>> >>>> >>>> >>>> >>>> On Thu, Apr 16, 2020 at 10:28 AM Ray Albers >> wrote: >>>> >>>>> Many to all who posted/responded to my recent post about an >> electrolytic >>>>> capacitor failure in my power supply. Lots of very interesting >> reading >>>>> about peoples' industry experiences - thank you! >>>>> >>>>> Several have pointed out that using a 20A supply with my K3/100 is >>> pushing >>>>> close to (or over!) the limit. Even though I am measuring just 16A at >>> the >>>>> power level I'm running (and not running anything but the K3 on this >>>>> supply) I agree that I'm skirting the edges. So even though I've been >>>>> getting away with it for a long time, this morning I ordered a 35A >>> supply. >>>>> I'll probably sleep better. >>>>> >>>>> 73 >>>>> Ray K2HYD >>>>> >>>>> < >>>>> >>> >> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon >>>>> Virus-free. >>>>> www.avast.com >>>>> < >>>>> >>> >> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link >>>>> <#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 ch at murgatroid.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 ch at murgatroid.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 >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 kevinr at coho.net Mon Apr 20 00:27:30 2020 From: kevinr at coho.net (kevinr) Date: Sun, 19 Apr 2020 21:27:30 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: <06f6a462-87b5-2c8f-d050-73cc69a87acc@coho.net> Good Evening, ?? Twenty meters had more noise and QSB than did forty meters. It also produced more check ins.? After the twenty meter net I was surprised at how quiet the background was on forty meters.? I would rather have the noise and not miss the signals. ? Yard work seems to be the theme this week.? With painting projects done it's time for gardening.? I'm going to build a few cold frames this week.? After the forest thinning I have a lot more light to use.? The seedlings should like that. ? The two owl species I mentioned are the Saw Whet and the Northern Barred.? Both have distinctive calls which carry for miles.? When I first moved into the forest I would get the Saw Whet call mixed up with the logger's whistle code.? Then I learned the owl's call is less varied.? They use the code to signal when the log is choked and ready to haul into the air. ? On 14050.3 kHz at 2200z: NO8V - John - MI KL7CW - Rick - AK K6XK - Roy - IA W8OV - Dave - TX K4TO - Dave - KY AB9V - Mike - IN ? On 7047.5 kHz at 0000z: K6PJV - Dale - CA K0DTJ - Brian - CA K4TO - Dave - KY ?? One of these weeks we will get back to hardware stores and lumber yards.? The smell of fir fresh from the kiln makes me want to build something.? The scent of a greenhouse makes me want to get my fingers dirty. ?? Until next week stay sane, ????? Kevin.? KD5ONS - From k9qjs at icloud.com Mon Apr 20 02:10:12 2020 From: k9qjs at icloud.com (JK Hoop Hooper) Date: Sun, 19 Apr 2020 23:10:12 -0700 Subject: [Elecraft] K4 capabilities In-Reply-To: References: Message-ID: <56674F87-02B6-4008-9857-AD256B004090@icloud.com> I took similar action: I took a screenshot of the downloaded K4 brochure and had it put onto a mousepad. So now I have a K4 (mousepad) on my ham shack desk. 73 Hoop K9QJS On Sun, Apr 19, 2020 at 11:46 AM Ralph Parker wrote: > > While anxiously waiting in line for the KPA500 to be released, I printed > out a picture of the front panel > of the '500, cut it out and placed it on the shelf where the '500 would > go. > *Then I could pretend that the station was complete.* > Almost as good as the real thing! > > -- From Gary at ka1j.com Mon Apr 20 02:50:57 2020 From: Gary at ka1j.com (Gary Smith) Date: Mon, 20 Apr 2020 02:50:57 -0400 Subject: [Elecraft] K4 capabilities In-Reply-To: <56674F87-02B6-4008-9857-AD256B004090@icloud.com> References: , , <56674F87-02B6-4008-9857-AD256B004090@icloud.com> Message-ID: <5E9D4651.25700.1A3A0C@Gary.ka1j.com> I remember seeing Barbie Benton as the Playboy centerfold. I tacked that in my closet. Posting that on my wish list never did work... 73 :) Gary KA1J > I took similar action: I took a screenshot of the downloaded K4 > brochure and had it put onto a mousepad. So now I have a K4 > (mousepad) on my ham shack desk. > > 73 > Hoop K9QJS > > > On Sun, Apr 19, 2020 at 11:46 AM Ralph Parker wrote: > > > > > While anxiously waiting in line for the KPA500 to be released, I > > printed out a picture of the front panel of the '500, cut it out and > > placed it on the shelf where the '500 would go. *Then I could > > pretend that the station was complete.* Almost as good as the real > > thing! > > > > -- > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to gary at ka1j.com > From d.cutter at ntlworld.com Mon Apr 20 05:34:38 2020 From: d.cutter at ntlworld.com (CUTTER DAVID) Date: Mon, 20 Apr 2020 10:34:38 +0100 (BST) Subject: [Elecraft] KATxxx Remote Tuner In-Reply-To: <58C3CF87-021B-446F-9E0E-714A2CA62051@w2xj.net> References: <58C3CF87-021B-446F-9E0E-714A2CA62051@w2xj.net> Message-ID: <891091740.4428982.1587375278470@mail2.virginmedia.com> For those with antennas that are "nearly right," eg provide <1.5:1 in a sweet spot but not the entire band, like a beam or a dipole, a commercial matcher that covers a huge range is not justified. A simple multi-tapped transformer would satisfy those needs. A relay-switched unit should be relatively easy to put in an outdoor unit quite inexpensively. I've seen tuners built into plastic tool boxes, small plastic rubbish bins, food boxes. Take care to use appropriate drain holes and critter filter. David G3UNA/G6CP > On 19 April 2020 at 23:06 W2xj wrote: > > > you get what you pay for. > > Sent from my iPad > > > On Apr 19, 2020, at 5:58 PM, Grant Youngman wrote: > > > > ?At a ?mere? $3K each, the AT-615B might be a great product, but is hardly what I would call a universally accessible solution ? > > > > Grant NQ5T > > > >> On Apr 19, 2020, at 5:13 PM, W2xj wrote: > >> > >> You can get an AT-615B from Array Solutions now and do this. I put 10 in a club station for our various wire arrays. They do everything you need. > >> > >> BTW I disagree about this 50 Ohm antenna thing. In my world of commercial high powered broadcasting 30 MHz and under, there are almost never resonant, matched 50 ohm arrays. > >> > >> Sent from my iPad > >> > >>>> On Apr 19, 2020, at 8:41 AM, Richard Thorne wrote: > >>> > >>> ? > >>> Eric/Wayne, > >>> > >>> Has there been any work done for a potential dedicated remote antenna tuner? > >>> > >>> A remote tuner that could handle 500 or 1500 watts to match up with amps power wise (Or just a barefoot K3/K4). Maybe a black box between the LAN on the K4 or ACC on the K3 so control signals could be sent to the tuner via the coax. > >>> > >>> I?m a firm believer in 50 ohm matched antennas, but if a tuner is required it needs to be at the feed point. > >>> > >>> Rich - N5ZC > >>> 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 > >> > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.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 > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 charles at sellsfamily.net Mon Apr 20 08:24:12 2020 From: charles at sellsfamily.net (Charles Sells) Date: Mon, 20 Apr 2020 12:24:12 +0000 Subject: [Elecraft] KAT4 Message-ID: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> I can see from the literature that is on the website that the KAT4 ATU will handle a 10:1 matching range but don?t see what the power handling capabilities are. Anyone know? 73 Charles W4PPP From dpbunte at gmail.com Mon Apr 20 09:02:50 2020 From: dpbunte at gmail.com (David Bunte) Date: Mon, 20 Apr 2020 09:02:50 -0400 Subject: [Elecraft] KAT4 In-Reply-To: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> References: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> Message-ID: Charles - I don't "know" what the power handling capabilities are, but think I can safely assume that if it is in the K4 it can handle the power of the K4. I trust that Wayne, Eric, or someone else who "knows" the answer will chime in when they are able. 73 de Dave - K9FN On Mon, Apr 20, 2020 at 8:25 AM Charles Sells wrote: > I can see from the literature that is on the website that the KAT4 ATU > will handle a 10:1 matching range but don?t see what the power handling > capabilities are. > > Anyone know? > > 73 > Charles > W4PPP > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dpbunte at gmail.com From charles at sellsfamily.net Mon Apr 20 09:52:56 2020 From: charles at sellsfamily.net (Charles Sells) Date: Mon, 20 Apr 2020 13:52:56 +0000 Subject: [Elecraft] KAT4 In-Reply-To: References: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> Message-ID: Dave It would be really nice if it would handle the 500 watts that the KPA500 puts out. That might be wishful thinking. 73 Charles W4PPP From: David Bunte Date: Monday, April 20, 2020 at 9:03 AM To: Charles Sells Cc: "elecraft at mailman.qth.net" Subject: Re: [Elecraft] KAT4 Charles - I don't "know" what the power handling capabilities are, but think I can safely assume that if it is in the K4 it can handle the power of the K4. I trust that Wayne, Eric, or someone else who "knows" the answer will chime in when they are able. 73 de Dave - K9FN On Mon, Apr 20, 2020 at 8:25 AM Charles Sells > wrote: I can see from the literature that is on the website that the KAT4 ATU will handle a 10:1 matching range but don?t see what the power handling capabilities are. Anyone know? 73 Charles W4PPP ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to dpbunte at gmail.com From nr4c at widomaker.com Mon Apr 20 10:30:21 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 20 Apr 2020 10:30:21 -0400 Subject: [Elecraft] KAT4 In-Reply-To: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> References: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> Message-ID: <2553D482-3398-4CCF-8DC0-134085B62137@widomaker.com> It?s an internal accessory for a 100 Watt transmitter. I?d guess it will handle up to 150 Watts or so. Sent from my iPhone ...nr4c. bill > On Apr 20, 2020, at 8:26 AM, Charles Sells wrote: > > ?I can see from the literature that is on the website that the KAT4 ATU will handle a 10:1 matching range but don?t see what the power handling capabilities are. > > Anyone know? > > 73 > Charles > W4PPP > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Mon Apr 20 10:34:45 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 20 Apr 2020 10:34:45 -0400 Subject: [Elecraft] KAT4 In-Reply-To: References: Message-ID: <9DCF4D0A-6FB6-439A-A6E2-DFA2E32D6319@widomaker.com> Guys. The KAT4 is installed inside the K4 transceiver. It could not be used with an external amplifier. The matching unit for the KPA500 must go between the Amp output and the antenna. Sent from my iPhone ...nr4c. bill > On Apr 20, 2020, at 9:55 AM, Charles Sells wrote: > > ?Dave > > It would be really nice if it would handle the 500 watts that the KPA500 puts out. > > That might be wishful thinking. > > 73 > Charles > W4PPP > > From: David Bunte > Date: Monday, April 20, 2020 at 9:03 AM > To: Charles Sells > Cc: "elecraft at mailman.qth.net" > Subject: Re: [Elecraft] KAT4 > > Charles - > > I don't "know" what the power handling capabilities are, but think I can safely assume that if it is in the K4 it can handle the power of the K4. I trust that Wayne, Eric, or someone else who "knows" the answer will chime in when they are able. > > 73 de Dave - K9FN > > On Mon, Apr 20, 2020 at 8:25 AM Charles Sells > wrote: > I can see from the literature that is on the website that the KAT4 ATU will handle a 10:1 matching range but don?t see what the power handling capabilities are. > > Anyone know? > > 73 > Charles > W4PPP > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dpbunte 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 nr4c at widomaker.com From john at kk9a.com Mon Apr 20 11:23:32 2020 From: john at kk9a.com (john at kk9a.com) Date: Mon, 20 Apr 2020 10:23:32 -0500 Subject: [Elecraft] KAT4 Message-ID: <20200420102332.Horde.56j7v3XoZuWXaMaE3VnAVsE@www11.qth.com> You would get much better performance fixing a 10:1 SWR antenna than using a KAT4 tuner. For starters you will loose 1/2 your power just going though 100 ft of RG213 at 14Mhz. John KK9A [Elecraft] KAT4 Charles Sells charles at sellsfamily.net Mon Apr 20 08:24:12 EDT 2020 Previous message: [Elecraft] Elecraft CW Net Report Next message: [Elecraft] KAT4 I can see from the literature that is on the website that the KAT4 ATU will handle a 10:1 matching range but don?t see what the power handling capabilities are. Anyone know? 73 Charles W4PPP From k3bh at arrl.net Mon Apr 20 11:41:03 2020 From: k3bh at arrl.net (Jay Rutherford) Date: Mon, 20 Apr 2020 11:41:03 -0400 Subject: [Elecraft] KAT4 In-Reply-To: References: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> Message-ID: Hi Charles, I think you're confusing the KAT4 tuner inside the K4 and the KAT500 tuner. The former will handle the maximum power that the K4 can put out barefoot. If you want to run the KPA500 amp and need a tuner, you will need the KAT500 tuner for that purpose. At least that is my understanding! 73 Jay K3BH On Mon, Apr 20, 2020, at 09:02, David Bunte wrote: > Charles - > > I don't "know" what the power handling capabilities are, but think I can > safely assume that if it is in the K4 it can handle the power of the K4. I > trust that Wayne, Eric, or someone else who "knows" the answer will chime > in when they are able. > > 73 de Dave - K9FN > > On Mon, Apr 20, 2020 at 8:25 AM Charles Sells > wrote: > > > I can see from the literature that is on the website that the KAT4 ATU > > will handle a 10:1 matching range but don?t see what the power handling > > capabilities are. > > > > Anyone know? > > > > 73 > > Charles > > W4PPP > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to dpbunte 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 k3bh at arrl.net From n6kr at elecraft.com Mon Apr 20 11:44:46 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 20 Apr 2020 08:44:46 -0700 Subject: [Elecraft] KAT4 In-Reply-To: <20200420102332.Horde.56j7v3XoZuWXaMaE3VnAVsE@www11.qth.com> References: <20200420102332.Horde.56j7v3XoZuWXaMaE3VnAVsE@www11.qth.com> Message-ID: The KAT4 is rated at 120 W to match the K4. Some competing ATUs only go to 3:1 or so. For someone on a small lot trying to use all bands, or during field operation, allowing for up to 10:1 means you use antennas on bands on which they're not resonant. 73, Wayne N6KR From gregg.w6izt1 at gmail.com Mon Apr 20 11:50:17 2020 From: gregg.w6izt1 at gmail.com (gregg.w6izt1 at gmail.com) Date: Mon, 20 Apr 2020 15:50:17 -0000 Subject: [Elecraft] OT Recommendation Audio Spectrum Analyzer app for Win10 Message-ID: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> Looking for recommendations Thanks in advance Gregg W6IZT From wes_n7ws at triconet.org Mon Apr 20 12:06:56 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 20 Apr 2020 09:06:56 -0700 Subject: [Elecraft] OT Recommendation Audio Spectrum Analyzer app for Win10 In-Reply-To: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> References: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> Message-ID: <92dd1e7c-40f5-bc26-fe16-0291cd1d04cb@triconet.org> Spectrum Lab is the gold standard. Be prepared for a steep learning curve. Maybe Audacity depending on your needs. Wes? N7WS On 4/20/2020 8:50 AM, gregg.w6izt1 at gmail.com wrote: > Looking for recommendations > > > > Thanks in advance > > Gregg W6IZT From donwilh at embarqmail.com Mon Apr 20 12:53:47 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 20 Apr 2020 12:53:47 -0400 Subject: [Elecraft] OT Recommendation Audio Spectrum Analyzer app for Win10 In-Reply-To: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> References: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> Message-ID: <504c780c-102e-b26f-10c0-6eb04580177f@embarqmail.com> Gregg, You can download Spectrogram from my website www.w3fpr.com. Look near the bottom of the home page for the link. I use version 16 on Windows 10. Spectrum Lab is another alternative, but the learning curve is steeper than with Spectrogram. 73, Don W3FPR On 4/20/2020 11:50 AM, gregg.w6izt1 at gmail.com wrote: > Looking for recommendations > From keith at elecraft.com Mon Apr 20 13:11:05 2020 From: keith at elecraft.com (Keith Trinity) Date: Mon, 20 Apr 2020 10:11:05 -0700 Subject: [Elecraft] No High Power on K3 Message-ID: After you change config menu intem KPA3 to nor; You have to CYCLE POWER with the front power button (not pull DC) to "set" the change. Then watch for ERR 12V when you ask for power above 12W (8W 6m). If you get ERR 12V, then the circuit breaker or something in that circuit is open, like burnt pins in the older radios for the DC power to the KPA3. Keith WE6R Elecraft K3 Tech. From pa0pje at xs4all.nl Mon Apr 20 13:15:09 2020 From: pa0pje at xs4all.nl (Peter Eijlander (PA0PJE)) Date: Mon, 20 Apr 2020 19:15:09 +0200 Subject: [Elecraft] OT Recommendation Audio Spectrum Analyzer app for Win10 In-Reply-To: <92dd1e7c-40f5-bc26-fe16-0291cd1d04cb@triconet.org> References: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> <92dd1e7c-40f5-bc26-fe16-0291cd1d04cb@triconet.org> Message-ID: <85360a4f-202f-c5d6-a449-6302f25bfa81@xs4all.nl> Look at DL2SBA's pages: He did a comparison between 2 2-tone audio generators, one a kit from Box73/Funkamateur and the other a Siglent function generator. http://dl2sba.com/index.php/funk/shack/354-2-tone-generator-fa-2-nf He used this application: https://www.audiotester.de/mainE.htm 73, Peter PA0PJE > On 4/20/2020 8:50 AM, gregg.w6izt1 at gmail.com wrote: >> Looking for recommendations >> >> >> >> Thanks in advance >> >> Gregg W6IZT > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 k5atg.aaron at gmail.com Mon Apr 20 13:18:39 2020 From: k5atg.aaron at gmail.com (Aaron) Date: Mon, 20 Apr 2020 12:18:39 -0500 Subject: [Elecraft] K2 Year Message-ID: <5e9dd973.1c69fb81.231fd.06ba@mx.google.com> From AE4PB at carolinaheli.com Sat Apr 18 09:27:15 2020 From: AE4PB at carolinaheli.com (AE4PB at carolinaheli.com) Date: Sat, 18 Apr 2020 09:27:15 -0400 Subject: [Elecraft] What's the best method to send high speed CW? Message-ID: <000001d61585$14239c00$3c6ad400$@carolinaheli.com> What's the best method to send high speed CW with a K3S via Computer? Serial adapter to the Key port or software via USB or ?? 73 Jerry D. Moore .. From AE4PB at carolinaheli.com Sat Apr 18 20:46:55 2020 From: AE4PB at carolinaheli.com (AE4PB at carolinaheli.com) Date: Sat, 18 Apr 2020 20:46:55 -0400 Subject: [Elecraft] USB Noise core gets hot when operating FT*? Message-ID: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> Today I was working a digital mode (FT8) and lost connection to the radio. I cycled power with no success. On reseating the USB connection at the computer I felt the ferrite core was HOT. The cable didn't feel hot at all. I'm using a 20m hamstick in the office as my antenna. I shut everything down to cool off. Afterwards everything seems to be working correctly. Any ideas? Tnx and 73 Jerry D. Moore AE4PB From pincon at erols.com Mon Apr 20 09:35:01 2020 From: pincon at erols.com (Charlie T) Date: Mon, 20 Apr 2020 09:35:01 -0400 Subject: [Elecraft] KAT4 In-Reply-To: References: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> Message-ID: <003101d61718$81776db0$84664910$@erols.com> Well this MAY be a valid question, since I believe for example, the IC-7300 and/or IC-7610 have an "emergency" mode where the power is cut back to 50 watts and the allowable tuner's SWR range is extended from its normal full power mismatch capability. If I remember correctly, its only 3:1 at 100 W, but will match an "emergency" use antenna if you have to. 10: 1 capability DOES put some hefty restraints on an internal tuner. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Bunte Sent: Monday, April 20, 2020 9:03 AM To: Charles Sells Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] KAT4 Charles - I don't "know" what the power handling capabilities are, but think I can safely assume that if it is in the K4 it can handle the power of the K4. I trust that Wayne, Eric, or someone else who "knows" the answer will chime in when they are able. 73 de Dave - K9FN On Mon, Apr 20, 2020 at 8:25 AM Charles Sells wrote: > I can see from the literature that is on the website that the KAT4 ATU > will handle a 10:1 matching range but don?t see what the power > handling capabilities are. > > Anyone know? > > 73 > Charles > W4PPP > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > dpbunte 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 pincon at erols.com From kg9hfrank at gmail.com Mon Apr 20 13:30:02 2020 From: kg9hfrank at gmail.com (Frank Krozel) Date: Mon, 20 Apr 2020 12:30:02 -0500 Subject: [Elecraft] K2 Year In-Reply-To: <5e9dd973.1c69fb81.231fd.06ba@mx.google.com> References: <5e9dd973.1c69fb81.231fd.06ba@mx.google.com> Message-ID: <42D6C148-4594-4A60-9BB7-F45AC7289AAC@gmail.com> 1999? -73- Frank KG9H kg9hfrank at gmail.com > On Apr 20, 2020, at 12:18 PM, Aaron wrote: > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donovanf at starpower.net Mon Apr 20 13:36:26 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Mon, 20 Apr 2020 13:36:26 -0400 (EDT) Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> Message-ID: <83274096.192850.1587404186870.JavaMail.root@starpower.net> With your antenna that close, are you sure you're not exceeding human body RF exposure requirements? 73 Frank W3LPL ----- Original Message ----- From: AE4PB at carolinaheli.com To: elecraft at mailman.qth.net Sent: Sunday, April 19, 2020 12:46:55 AM Subject: [Elecraft] USB Noise core gets hot when operating FT*? Today I was working a digital mode (FT8) and lost connection to the radio. I cycled power with no success. On reseating the USB connection at the computer I felt the ferrite core was HOT. The cable didn't feel hot at all. I'm using a 20m hamstick in the office as my antenna. I shut everything down to cool off. Afterwards everything seems to be working correctly. Any ideas? Tnx and 73 Jerry D. Moore AE4PB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 AE4PB at carolinaheli.com Mon Apr 20 13:40:26 2020 From: AE4PB at carolinaheli.com (AE4PB at carolinaheli.com) Date: Mon, 20 Apr 2020 13:40:26 -0400 Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: <83274096.192850.1587404186870.JavaMail.root@starpower.net> References: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> <83274096.192850.1587404186870.JavaMail.root@starpower.net> Message-ID: <03d501d6173a$c75f6c70$561e4550$@carolinaheli.com> I?m not sure, but, it?s a good point. I?m only running 50Watts. From: donovanf at starpower.net Sent: Monday, April 20, 2020 1:36 PM To: AE4PB at carolinaheli.com Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] USB Noise core gets hot when operating FT*? With your antenna that close, are you sure you're not exceeding human body RF exposure requirements? 73 Frank W3LPL _____ From: AE4PB at carolinaheli.com To: elecraft at mailman.qth.net Sent: Sunday, April 19, 2020 12:46:55 AM Subject: [Elecraft] USB Noise core gets hot when operating FT*? Today I was working a digital mode (FT8) and lost connection to the radio. I cycled power with no success. On reseating the USB connection at the computer I felt the ferrite core was HOT. The cable didn't feel hot at all. I'm using a 20m hamstick in the office as my antenna. I shut everything down to cool off. Afterwards everything seems to be working correctly. Any ideas? Tnx and 73 Jerry D. Moore AE4PB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 Apr 20 13:51:32 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Mon, 20 Apr 2020 13:51:32 -0400 (EDT) Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: <03d501d6173a$c75f6c70$561e4550$@carolinaheli.com> Message-ID: <1220603590.197853.1587405092050.JavaMail.root@starpower.net> You're safe, but obviously your K3 isn't... ----- Original Message ----- From: AE4PB at carolinaheli.com To: donovanf at starpower.net, AE4PB at carolinaheli.com Cc: elecraft at mailman.qth.net Sent: Monday, April 20, 2020 5:40:26 PM Subject: RE: [Elecraft] USB Noise core gets hot when operating FT*? I?m not sure, but, it?s a good point. I?m only running 50Watts. From: donovanf at starpower.net Sent: Monday, April 20, 2020 1:36 PM To: AE4PB at carolinaheli.com Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] USB Noise core gets hot when operating FT*? With your antenna that close, are you sure you're not exceeding human body RF exposure requirements? 73 Frank W3LPL ----- Original Message ----- From: AE4PB at carolinaheli.com To: elecraft at mailman.qth.net Sent: Sunday, April 19, 2020 12:46:55 AM Subject: [Elecraft] USB Noise core gets hot when operating FT*? Today I was working a digital mode (FT8) and lost connection to the radio. I cycled power with no success. On reseating the USB connection at the computer I felt the ferrite core was HOT. The cable didn't feel hot at all. I'm using a 20m hamstick in the office as my antenna. I shut everything down to cool off. Afterwards everything seems to be working correctly. Any ideas? Tnx and 73 Jerry D. Moore AE4PB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 Apr 20 13:54:14 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Mon, 20 Apr 2020 13:54:14 -0400 (EDT) Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: <040e01d6173c$86c14ce0$9443e6a0$@carolinaheli.com> Message-ID: <1040821636.199262.1587405254939.JavaMail.root@starpower.net> Definitely You can prove it to yourself by connecting a dummy load to your K3 73 Frank W3LPL ----- Original Message ----- From: AE4PB at carolinaheli.com To: donovanf at starpower.net, elecraft at mailman.qth.net Sent: Monday, April 20, 2020 5:52:57 PM Subject: RE: [Elecraft] USB Noise core gets hot when operating FT*? Are you saying that?s what?s causing the ferrite core on the USB cable to heat up? Jerry Moore Cell: 803-431-1870 From: donovanf at starpower.net Sent: Monday, April 20, 2020 1:52 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] USB Noise core gets hot when operating FT*? You're safe, but obviously your K3 isn't... ----- Original Message ----- From: AE4PB at carolinaheli.com To: donovanf at starpower.net , AE4PB at carolinaheli.com Cc: elecraft at mailman.qth.net Sent: Monday, April 20, 2020 5:40:26 PM Subject: RE: [Elecraft] USB Noise core gets hot when operating FT*? I?m not sure, but, it?s a good point. I?m only running 50Watts. From: donovanf at starpower.net < donovanf at starpower.net > Sent: Monday, April 20, 2020 1:36 PM To: AE4PB at carolinaheli.com Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] USB Noise core gets hot when operating FT*? With your antenna that close, are you sure you're not exceeding human body RF exposure requirements? 73 Frank W3LPL From: AE4PB at carolinaheli.com To: elecraft at mailman.qth.net Sent: Sunday, April 19, 2020 12:46:55 AM Subject: [Elecraft] USB Noise core gets hot when operating FT*? Today I was working a digital mode (FT8) and lost connection to the radio. I cycled power with no success. On reseating the USB connection at the computer I felt the ferrite core was HOT. The cable didn't feel hot at all. I'm using a 20m hamstick in the office as my antenna. I shut everything down to cool off. Afterwards everything seems to be working correctly. Any ideas? Tnx and 73 Jerry D. Moore AE4PB ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 xdavid at cis-broadband.com Mon Apr 20 14:19:25 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Mon, 20 Apr 2020 11:19:25 -0700 Subject: [Elecraft] OT Recommendation Audio Spectrum Analyzer app for Win10 In-Reply-To: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> References: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> Message-ID: <96d516d5-7053-dd03-c600-883632841c9f@cis-broadband.com> Both Goldwave (which I use) and WavePad are pretty sophisticated and cost less than $50 each for a permanent license. At least check out their respective web pages ... the pictures are very pretty!? ;) 73, Dave?? AB7E On 4/20/2020 8:50 AM, gregg.w6izt1 at gmail.com wrote: > Looking for recommendations > > > > Thanks in advance > > Gregg W6IZT From billamader at gmail.com Mon Apr 20 14:22:26 2020 From: billamader at gmail.com (K8TE) Date: Mon, 20 Apr 2020 11:22:26 -0700 (MST) Subject: [Elecraft] K4 In-Reply-To: <1941442144.68625.1587324668212@connect.xfinity.com> References: <1941442144.68625.1587324668212@connect.xfinity.com> Message-ID: <1587406946892-0.post@n2.nabble.com> Ralph, You answered your own question although part of your description doesn't logically make sense. If the chain link fence is the source of the mixing, how can your FT-1000 out-perform your K3? If the mixing occurs in the fence (very possible at a dissimilar junction), then that junction generates an unwanted signal in the bands you use. Only disconnecting the antenna from the transceiver will solve that problem. The filter protects the transceiver's front end and has no impact on the fence's mixing capability. I used to work for the company that operates our local (770-KKOB) 50 KW electron emitter. It is line-of-sight from our home. I use a high pass filter in between the antenna and K3 to reduce its impact on 160m. The "standard" MFJ antenna analyzer won't work properly with that much RF in the neighborhood. Living in New Mexico, rust is not a big problem for chain link fences or cars/trucks. However, the 50 KW transmitter is a huge problem for many devices, especially telephones, in the neighborhood. We used to provide a lot of phone line ferrite filters before cell phones became so abundant. It's difficult to solve problems without understanding their causes. Good luck! 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From elanzl at sbcglobal.net Mon Apr 20 14:32:37 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Mon, 20 Apr 2020 18:32:37 +0000 (UTC) Subject: [Elecraft] SSB Net 4-18-2-20 References: <1162564727.3674506.1587407557108.ref@mail.yahoo.com> Message-ID: <1162564727.3674506.1587407557108@mail.yahoo.com> Here is the list of stations checking in to the SSB Net this past Sunday 4-18-2020. Once again, a big thank you to the relay stations who always help to hear the stations that I do not hear. Everyone is welcome to check in regardless of the type of radio. We now have a 40 m net which takes place at 18:45 Z. on or about 7.280. This is? a new net hosted by Steve WM6P. Please join us to check in or to have a nice qso following the net. ??????????? ? Call???????????? Name????? State?????? Radio??????? Serial #????? QRP????????? Notes WB9JNZ????????? Eric??????????????? IL??????????????????? K3????????????????? 4017????????????????? ????????????????? Net Control K8NU/7?????????? Carl?????????????? OH/WA?????? ? ? ? Yaesu FT??????? 2000????????????????? ?????????????????? Relay Station KO5V?????????????? Jim??????????????? NM??????????????? K2/100????????? ?? 7225????????????????? ?????????? ? ? ? ? Relay Station WW4JF?????????? John???????????? TN?????????????????? K3 / K3S???????? ? 6185 / 11177? ?????????????????????????????????????????????? ? NC0JW??????????? Jim??????????????? CO???????????????? KX3????????????????? 1356????????????????? ????????????????? Relay Station W4DML?????????? Doug??????????? TN??????????????? ? ?? K3?????????????????? 6433????????????????? ?????????????????????????????????????????????? ? N6PGQ??????????? Bob?????????????? CA???????????????? ? K3?????????????????? 5891????????????????? ?????????????????????????????????????????????? ? W1NGA?????????? Al?????????????????? CO???????????????? K3??????????????????? 5765????????????????? ?????????????????????????????????????????????? ? AE1E????????????? Ken?????????????? NM??????????????? K3S?????????????????? 11611?????????????? ?????????????????????????????????????????????? ? KS6F????????????? Guy ????????????? CA???????????????? K3S????????????????? 11672?????????????? ?????????????????????????????????????????????? ? KF7ZN??????????? Ron?????????????? UT?????????????? ? ? K3S???????????????? 10832?????????????? ?????????????????????????????????????????????? ? K7BRR??????????? Bill???????????????? AZ????????????????? K3/ K3S????????? 5545 / 10939? ?????????????????????????????????????????????? ? KN4MIV?????????? Jim??????????????? FL????????????????? ?? Yaesu?? ????????? FT100D?????????? ?????????????????????????????????????????????? ? N4NRW?????????? Roger?????????? SC???????????????????? K3?????????????????? 1318????????????????? ?????????????????????????????????????????????? ? K7JG?????????????? John???????????? WA????????????? ?? KX3??????????????????? 3519????????????????? ?????????????????????????????????????????????? ? WM6P???????????? Steve?????????? GA??????????????????? K3S???????????????? 11453?????????????? ?????????????????????????????????????????????? ? AI4VZ?????????????? George??????? GA?????????????? ? ? ? K3??????????????????? 2412????????????????? ?????????????????????????????????????????????? ? K6VWE??????????? Stan????????????? MI??????????????? ?? K3?????????????????????? 650??????????????????? ?????????????????????????????????????????????? ? AB9PR???????????? Derick????????? IL????????????????? ?? K3??????????????????? ? 8310????????????????? ?????????????????????????????????????????????? ? N7BDL???????????? Terry??????????? AZ??????????????????? K3S????????????????? 10373?????????????? ?????????????????????????????????????????????? ? W7QHD?????????? Kurt????????????? AZ??????????????????? K2/100 / Kx3??? 1538 / 8697??? ?????????????????????????????????????????????? ? KC1ACL?????????? Steve?????????? NM????????????? ? ?? KX3?????????????????? 10677?????????????? ?????????????????????????????????????????????? ? KB9AVO???????? ? Paul????????????? IN???????????????? ? ? K3S???????????????? 11103?????????????? ?????????????????????????????????????????????? ? NS7P??????????????? Phil??????????????? OR???????????????? K3???????????????????? 1826????????????????? ?????????????????????????????????????????????? ? N0MPM??????????? Mike???????????? IA???????????????? ? ? ? K3S?????????????? 10514?????????????? ?????????????????????????????????????????????? ? VE7JBT??????????? Don?????????????? BC????????????????? KX3??????????????????? 8566??????????? Qrp5 watts?????????????????????? ? ? ? From jim at audiosystemsgroup.com Mon Apr 20 14:33:56 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 20 Apr 2020 11:33:56 -0700 Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> References: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> Message-ID: <4560cce4-f5b9-8ba3-41d5-dd2412197464@audiosystemsgroup.com> On 4/18/2020 5:46 PM, AE4PB at carolinaheli.com wrote: > I felt the ferrite core was HOT. The cable didn't feel hot at all. > I'm using a 20m hamstick in the office as my antenna. That's an "un-natural act" -- the antenna is not designed for that application, and, among other things, requires a good connection to the chassis of a vehicle or something similar to act as a counterpoise. Without a counterpoise, the coax acts as a radial. At the very least, you should provide radials to act as a counterpoise. There are thousands of ferrite parts, all of them very different from each other. Exactly WHICH "ferrite core" are you using (part number, mfr, mix), where is it in the system? Are multiple turns wound through it? 73, Jim K9YC From k2qmf at juno.com Mon Apr 20 14:45:28 2020 From: k2qmf at juno.com (Salvatore Ted K2QMF) Date: Mon, 20 Apr 2020 14:45:28 -0400 Subject: [Elecraft] What's the best method to send high speed CW? In-Reply-To: <000001d61585$14239c00$3c6ad400$@carolinaheli.com> References: <000001d61585$14239c00$3c6ad400$@carolinaheli.com> Message-ID: Practice!!? On 4/20/2020 2:21:53 PM, ae4pb at carolinaheli.com wrote: What's the best method to send high speed CW with a K3S via Computer? Serial adapter to the Key port or software via USB or ?? 73 Jerry D. Moore .. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k2qmf at juno.com From xdavid at cis-broadband.com Mon Apr 20 14:49:47 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Mon, 20 Apr 2020 11:49:47 -0700 Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: <4560cce4-f5b9-8ba3-41d5-dd2412197464@audiosystemsgroup.com> References: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> <4560cce4-f5b9-8ba3-41d5-dd2412197464@audiosystemsgroup.com> Message-ID: <98d6fba3-730e-21e9-e2a5-d4ee2cb22f4e@cis-broadband.com> Hi, Jim. I think he was talking about the ferrite core embedded in the USB cable.? Check the title of his post. But for sure, his setup is a really poor one. 73, Dave?? AB7E On 4/20/2020 11:33 AM, Jim Brown wrote: > On 4/18/2020 5:46 PM, AE4PB at carolinaheli.com wrote: >> I felt the ferrite core was HOT. The cable didn't feel hot at all. >> I'm using a 20m hamstick in the office as my antenna. > > That's an "un-natural act" -- the antenna is not designed for that > application, and, among other things, requires a good connection to > the chassis of a vehicle or something similar to act as a > counterpoise. Without a counterpoise, the coax acts as a radial. At > the very least, you should provide radials to act as a counterpoise. > > There are thousands of ferrite parts, all of them very different from > each other. Exactly WHICH "ferrite core" are you using (part number, > mfr, mix), where is it in the system? Are multiple turns wound through > it? > > 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 xdavid at cis-broadband.com From nv4c.ian at gmail.com Mon Apr 20 14:52:28 2020 From: nv4c.ian at gmail.com (Ian Kahn, NV4C) Date: Mon, 20 Apr 2020 14:52:28 -0400 Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: References: Message-ID: <3f7272ab-3867-211c-b3e5-fd8e6f0fe522@gmail.com> Wayne, Thank you for this update. I am eagerly awaiting information on the K4 kits and when they will be available (I know, not for a while yet ;-)). My only regret with my K3, s/n 261, is that I bought it, and its accompanying P3, used. Consequently, I didn't get the joy of building them myself. I built my KPA500 and KAT500. Aside from dropping the tiny fasteners into the deep pile carpet in the dining room, I loved every minute of it. I've thoroughly enjoyed my K-Line, and look forward to upgrading to the K4 (and maybe the KPA1500, if the funds hold out). 73 de, Ian, NV4C On 4/19/20 3:46 PM, Wayne Burdick wrote: > Greetings from locked-down California.... I hope everyone, near and far, is staying safe! > > I thought I'd take a break from playing with the K4 and tweaking firmware to give everyone a status report from the engineering side. (Eric has been keeping everyone informed about how Elecraft has been affected by the pandemic more generally.) > > These musings are in no particular order. I hope they help satisfy those who recently posted with questions, info-cravings, etc. > > * * * > > Reference Oscillator > > The K4 includes a stable internal TXCO, standard, as well as the ability to lock to an external 10 MHz reference. We just completed a round of testing on this feature. > > The internal TCXO is accurate to within +/- .28 ppm with no calibration and no external reference connected. There's a menu entry for dialing this in as tight as +/- .02 PPM (+/- 1 Hz at 50 MHz). Connecting an external reference will hold it even closer, and of course keep it there over an even wider temperature range. > > Panadapter Controls > > Thanks to the efforts of our [working-at-home] software team, the panadapter controls just keep getting better. When you tap DISPLAY, you're presented with 14 easy to use display functions. But we took things a step further by allowing you to specify whether to adjust the current parameter on LCD, EXT, or both (when an external monitor is attached), and on main, sub, or both (when in dual-display mode). You can independently specify single or dual-pan for LCD and external monitor. For example, you could have dual-Pan on a large HDMI monitor, while setting the LCD to monitor just main or sub RX. > > Stereo Audio > > Receive audio provides independent left and right channels for both headphones and external speakers. When used in single-receive mode, this allows you to use simulated stereo or "pitch mapping"-- both very effective at relieving listening fatigue. I've been using this a lot in DXing and QRP work. Full stereo also comes into play in diversity mode, when listening to pileups, or just monitoring two separate bands. Even with a basic K4, the two receivers can be set to any two bands, and you can operate cross-band split. The K4D adds a second set of band-pass filters and a second A-to-D converter to greatly improve out-of-band rejection when monitoring different bands. > > Receive Antenna Controls > > We recently made some improvements in this area. In addition to main RX ant and sub RX ant selection switches, there are now separate icons showing which antennas are in use: one for main RX, one for sub RX, and one for TX antenna. Main and sub receivers default to the TX antenna, but you can select any of the antenna jacks for assignment to each receiver independently. This updates the icons accordingly. You can also assign names to antenna ports using a pop-up alphanumeric keyboard. On my K4, I have names for the three antennas connected to my KAT4 ATU, as well as "SIG GEN" for the RX ANT IN 1 jack and "LOOP" for RX ANT IN 2. > > RF Gain Controls > > The ATTN switch brings up a selection tool that allows you to turn the attenuator on/off and select attenuation from 0 to 21 dB in 3-dB steps. (As with all receive and transmit controls, these settings are stored per-band and per-receiver.) You can also dial in per-receiver RF GAIN (0 to -60 dB, with digital readout) and preamp setting (off/pre1/pre2). All gain settings are now taken into account when calculating S-meter and panadapter reference levels. > > Miscellaneous Controls > > Compared the the K3S, the K4 has numerous additional controls, resulting in a lot less use of the menu. Each receiver has a collection of per-mode settings (tap MAIN RX or SUB RX, respectively), as does the transmitter (tap the TX button). There are dedicated switches for TUNE LP (user-specified low-power TUNE setting), REM ANT (for future control of remote antenna switches, rotators, etc.), VFO B>A (in addition to the usual A>B), AUTO spot (in addition to SPOT), PF1-PF4 (plus another 14 user functions, Fn 1-14, via a touch function), and a separate audio BALance knob function, the behavior of which could be adapted to various operator needs in the future. > > Touch Controls > > We're sure you'll find, as we have, that the K4's touch screen interface is fast and convenient to use. To capitalize on this, we've been adding new touch features. To highlight a few: Tapping the RIT/XIT offset window turns RIT on/off (per receiver). Tapping the antenna icons brings up their selection widgets, with planned custom behavior for quick A/B testing. The Status Area of the LCD normally shows time and date, but you can tap it to select from various alternatives, including system parameters (like supply voltage/current) or per-receiver absolute signal levels in dBm. Tapping the per-RX filter graphics switches between per-mode FL1/2/3 settings. > > * * * > > I have to admit that it's frustrating to be sequestered at home, making only the occasional quick trip to the office or to visit coworkers. Work, like life, has become more challenging for all of us. But the good news for everyone waiting for a K4 is that a handful of testers are using them every day, so that when you do get your hands on one, it'll be rock-solid. > > Believe me, we're just as anxious for that day to arrive as you are. Maybe more :) > > 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 nv4c.ian at gmail.com From frantz at pwpconsult.com Mon Apr 20 14:59:06 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Mon, 20 Apr 2020 14:59:06 -0400 Subject: [Elecraft] SSB Net 4-19-2020 In-Reply-To: <1162564727.3674506.1587407557108@mail.yahoo.com> Message-ID: I had my KX3 out on a picnic table with an AX1 antenna here in Peterborough, NH. I could hear NC0JW quite strongly and WB9JNZ barely. I was having trouble transmitting at 5 watts, as sometimes the radio would power off. I am assuming that either the internal batteries weren't charged, or that there is a bad connection somewhere in the battery holder. Since the batteries all read over 1.2 volts when I checked them afterwards, I'm guessing the bad connection. 73 Bill AE6JV On 4/20/20 at 2:32 PM, elanzl at sbcglobal.net (Eric Lanzl) wrote: >Here is the list of stations checking in to the SSB Net this >past Sunday 4-18-2020. Once again, a big thank you to the relay >stations who always help to hear the stations that I do not >hear. Everyone is welcome to check in regardless of the type of >radio. We now have a 40 m net which takes place at 18:45 Z. on >or about 7.280. This is? a new net hosted by Steve WM6P. >Please join us to check in or to have a nice qso following the >net. ??????????? ... ----------------------------------------------------------------------- Bill Frantz | Concurrency is hard. 12 | Periwinkle (408)348-7900 | out 10 programmers get it | 150 Rivermead Rd #235 www.pwpconsult.com | wrong. - Jeff Frantz | Peterborough, NH 03458 From richarddnnr2 at gmail.com Mon Apr 20 15:20:30 2020 From: richarddnnr2 at gmail.com (Richard Donner) Date: Mon, 20 Apr 2020 12:20:30 -0700 Subject: [Elecraft] Power supply for KS Message-ID: I need to get a new power supply for my upcoming K4 and accessories before my present 40 year old supply goes belly up. I want reliability and no fussing , fixing or modifying things. Any recommendations. I heard that some of the old brands are not what they used to be. Thanks, Richard wa6kyr From nr4c at widomaker.com Mon Apr 20 15:40:05 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 20 Apr 2020 15:40:05 -0400 Subject: [Elecraft] KAT4 In-Reply-To: <003101d61718$81776db0$84664910$@erols.com> References: <003101d61718$81776db0$84664910$@erols.com> Message-ID: <8B194310-750E-4564-AC5D-CA4E186B782F@widomaker.com> The K3 line has had this same range ATU from the beginning. Sent from my iPhone ...nr4c. bill > On Apr 20, 2020, at 1:31 PM, Charlie T wrote: > > ?Well this MAY be a valid question, since I believe for example, the IC-7300 and/or IC-7610 have an "emergency" mode where the power is cut back to 50 watts and the allowable tuner's SWR range is extended from its normal full power mismatch capability. > If I remember correctly, its only 3:1 at 100 W, but will match an "emergency" use antenna if you have to. > > 10: 1 capability DOES put some hefty restraints on an internal tuner. > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of David Bunte > Sent: Monday, April 20, 2020 9:03 AM > To: Charles Sells > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KAT4 > > Charles - > > I don't "know" what the power handling capabilities are, but think I can safely assume that if it is in the K4 it can handle the power of the K4. I trust that Wayne, Eric, or someone else who "knows" the answer will chime in when they are able. > > 73 de Dave - K9FN > >> On Mon, Apr 20, 2020 at 8:25 AM Charles Sells >> wrote: >> >> I can see from the literature that is on the website that the KAT4 ATU >> will handle a 10:1 matching range but don?t see what the power >> handling capabilities are. >> >> Anyone know? >> >> 73 >> Charles >> W4PPP >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> dpbunte 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 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 nr4c at widomaker.com From donwilh at embarqmail.com Mon Apr 20 15:47:51 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 20 Apr 2020 15:47:51 -0400 Subject: [Elecraft] K2 Year In-Reply-To: <5e9dd973.1c69fb81.231fd.06ba@mx.google.com> References: <5e9dd973.1c69fb81.231fd.06ba@mx.google.com> Message-ID: <81936927-124e-9580-cef3-04b0198beb19@embarqmail.com> When do you mean? There was no text in your post. Did you send in HTML? If so, mailman would have stripped it out - you must use plain text. The K2 was initially designed and released to Field Testing in 1998. There have been several design improvements since then, and at the time of SN3000, the boards were re-done to incorporated all the upgrades on the board. The only change since SN3000 is the keying waveform upgrade which is installed as part of the kit starting with SN 4660 if I recall. The kits are still being shipped and the serial numbers are approaching 8000. I don't recall the years each of the upgrades were released. Any early K2 can be upgraded to the current level with the kits and instructions from Elecraft. 73, Don W3FPR On 4/20/2020 1:18 PM, Aaron wrote: > From wa2lbi at gmail.com Mon Apr 20 15:51:00 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Mon, 20 Apr 2020 15:51:00 -0400 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: Richard, I use an IOTA DLS-55 SMPS power supply ( https://www.iotaengineering.com/dls55.htm). It provides 55 amps, doesn?t produce RFI, is audibly quiet, and rugged. The dimensions are 9.7" x 6.7" x 3.4" and the weight is 5.0 lbs. Mine is on 24/7/365. IOTA also makes them in other output voltages and currents. Ken WA2LBI On Mon, Apr 20, 2020 at 15:21 Richard Donner wrote: > I need to get a new power supply for my upcoming K4 and accessories before > my present 40 year old supply goes belly up. > I want reliability and no fussing , fixing or modifying things. Any > recommendations. > I heard that some of the old brands are not what they used to be. > Thanks, > Richard wa6kyr > -- Ken WA2LBI Sent from one of my mobile devices From rick.nk7i at gmail.com Mon Apr 20 15:58:22 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Mon, 20 Apr 2020 12:58:22 -0700 Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> References: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> Message-ID: Jerry, Ignoring how you've set up your station for the moment (every station has compromises but some push that to an extreme); the shutdown? of the connection is likely that RF got into the USB cable (as demonstrated by the hot ferrite) which caused the USB port hardware to lock up. USB hardware can 'stick' so it won't work properly, a complete power cycle empties it of any charge, 'unsticking' the hardware.? (Yah a gross simplification, but you get the point.) The only SURE way to restore it to function (assuming it's not blown) is a complete power down (unplugged from all power, let the power supply drain, disconnect the laptop battery, count another ten seconds) and restart.? That is why it worked after you 'cooled it off'. If you can shift to a real serial port (not a serial dongle), that will help.? USB is RF intolerant compared to serial.? It's simplest to avoid USB as much as feasible near any RF. If you can't avoid USB, you'll need to add a lot more ferrite or better yet, improve the antenna situation dramatically. In the cases I MUST run a USB connection, I distance the antenna from the computer as much as possible and I run <100 watts (QRP to me), but generally that's when I run a portable station.? Jim, K9YC will tell you it's related to 'Pin 1' and the short version is that is has to do with bonding all things to a common ground; USB devices often ignore this. In a few cases, improved bonding between the computer and radio /may/ help, but I'd have low hopes if the antenna is mere feet away.? Take the hot ferrite as a warning sign, it's not a healthy environment. 73, Rick NK7I On 4/18/2020 5:46 PM, AE4PB at carolinaheli.com wrote: > Today I was working a digital mode (FT8) and lost connection to the radio. I > cycled power with no success. On reseating the USB connection at the > computer I felt the ferrite core was HOT. The cable didn't feel hot at all. > I'm using a 20m hamstick in the office as my antenna. I shut everything down > to cool off. Afterwards everything seems to be working correctly. > > Any ideas? > > Tnx and 73 > > Jerry D. Moore > > AE4PB > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 richarddnnr2 at gmail.com Mon Apr 20 15:59:01 2020 From: richarddnnr2 at gmail.com (Richard Donner) Date: Mon, 20 Apr 2020 12:59:01 -0700 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: Hi Ken Thanks for the info. I am not in a rush yet. I noticed that the voltage is 13.4.. Maybe a little higher might be better. Not sure on the last point. I will check what else they make TU 73 Richard On Mon, Apr 20, 2020 at 12:51 PM Ken Winterling wrote: > Richard, > > I use an IOTA DLS-55 SMPS power supply ( > https://www.iotaengineering.com/dls55.htm). It provides 55 amps, doesn?t > produce RFI, is audibly quiet, and rugged. The dimensions are 9.7" x 6.7" > x 3.4" and the weight is 5.0 lbs. Mine is on 24/7/365. IOTA also makes > them in other output voltages and currents. > > Ken > WA2LBI > > > On Mon, Apr 20, 2020 at 15:21 Richard Donner > wrote: > >> I need to get a new power supply for my upcoming K4 and accessories >> before >> my present 40 year old supply goes belly up. >> I want reliability and no fussing , fixing or modifying things. Any >> recommendations. >> I heard that some of the old brands are not what they used to be. >> Thanks, >> Richard wa6kyr >> > -- > > Ken > WA2LBI > > Sent from one of my mobile devices > From rick.nk7i at gmail.com Mon Apr 20 16:05:24 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Mon, 20 Apr 2020 13:05:24 -0700 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: Wayne has said that 14.2V is desirable (as read on the display, so ~14.4V at the source AND the input connector at the radio).? This provides a more clean signal. It's also important to not allow voltage sag under load (for the same reasons). Just make sure that if the power supply causes noise, that you can return it without cost.? Then your decision is switcher vs analog, each work well; each have issues or 'features'. 73, Rick NK7I On 4/20/2020 12:59 PM, Richard Donner wrote: > Hi Ken > Thanks for the info. > I am not in a rush yet. I noticed that the voltage is 13.4.. Maybe a > little higher might be better. Not sure on the last point. > I will check what else they make > TU 73 > Richard > > > On Mon, Apr 20, 2020 at 12:51 PM Ken Winterling wrote: > >> Richard, >> >> I use an IOTA DLS-55 SMPS power supply ( >> https://www.iotaengineering.com/dls55.htm). It provides 55 amps, doesn?t >> produce RFI, is audibly quiet, and rugged. The dimensions are 9.7" x 6.7" >> x 3.4" and the weight is 5.0 lbs. Mine is on 24/7/365. IOTA also makes >> them in other output voltages and currents. >> >> Ken >> WA2LBI >> >> >> On Mon, Apr 20, 2020 at 15:21 Richard Donner >> wrote: >> >>> I need to get a new power supply for my upcoming K4 and accessories >>> before >>> my present 40 year old supply goes belly up. >>> I want reliability and no fussing , fixing or modifying things. Any >>> recommendations. >>> I heard that some of the old brands are not what they used to be. >>> Thanks, >>> Richard wa6kyr >>> >> -- >> >> Ken >> WA2LBI >> >> Sent from one of my mobile devices >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jasimmons at pinewooddata.com Mon Apr 20 16:10:12 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Mon, 20 Apr 2020 15:10:12 -0500 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: The same supply is sold under the DURACOMM name. I believe there is a pot accessible through a hole in the case to adjust the voltage. My $0.02: I prefer supplies that are in a desktop case with meters for current and voltage. The meters give me peace of mind and add information and ambience to the ham shack. The Astron SS series seems to be good. -de John NI0K Richard Donner wrote on 4/20/2020 2:59 PM: > Hi Ken > Thanks for the info. > I am not in a rush yet. I noticed that the voltage is 13.4.. Maybe a > little higher might be better. Not sure on the last point. > I will check what else they make > TU 73 > Richard > > > On Mon, Apr 20, 2020 at 12:51 PM Ken Winterling wrote: > >> Richard, >> >> I use an IOTA DLS-55 SMPS power supply ( >> https://www.iotaengineering.com/dls55.htm). It provides 55 amps, doesn?t >> produce RFI, is audibly quiet, and rugged. The dimensions are 9.7" x 6.7" >> x 3.4" and the weight is 5.0 lbs. Mine is on 24/7/365. IOTA also makes >> them in other output voltages and currents. >> >> Ken >> WA2LBI >> >> >> On Mon, Apr 20, 2020 at 15:21 Richard Donner >> wrote: >> >>> I need to get a new power supply for my upcoming K4 and accessories >>> before >>> my present 40 year old supply goes belly up. >>> I want reliability and no fussing , fixing or modifying things. Any >>> recommendations. >>> I heard that some of the old brands are not what they used to be. >>> Thanks, >>> Richard wa6kyr >>> >> -- >> >> Ken >> WA2LBI >> >> Sent from one of my mobile devices >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 voerman at att.net Mon Apr 20 16:14:32 2020 From: voerman at att.net (Lou Voerman W2ROW) Date: Mon, 20 Apr 2020 13:14:32 -0700 (MST) Subject: [Elecraft] What's the best method to send high speed CW? In-Reply-To: <000001d61585$14239c00$3c6ad400$@carolinaheli.com> References: <000001d61585$14239c00$3c6ad400$@carolinaheli.com> Message-ID: <1587413672390-0.post@n2.nabble.com> I am not a high CW op by any stretch but I think the K1EL Winkeyer (USB) interface is used a lot. It is supported by most ham radio software (like HRD). It relieves the computer from doing the CW timing which can be unreliable depending on load. Lou W2ROW -- Sent from: http://elecraft.365791.n2.nabble.com/ From wa2lbi at gmail.com Mon Apr 20 16:17:54 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Mon, 20 Apr 2020 16:17:54 -0400 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: If you insert a jumper in the jack on the side it raises the voltage to 14.2. Ken WA2LBI On Mon, Apr 20, 2020 at 3:59 PM Richard Donner wrote: > Hi Ken > Thanks for the info. > I am not in a rush yet. I noticed that the voltage is 13.4.. Maybe a > little higher might be better. Not sure on the last point. > I will check what else they make > TU 73 > Richard > > > On Mon, Apr 20, 2020 at 12:51 PM Ken Winterling wrote: > >> Richard, >> >> I use an IOTA DLS-55 SMPS power supply ( >> https://www.iotaengineering.com/dls55.htm). It provides 55 amps, >> doesn?t produce RFI, is audibly quiet, and rugged. The dimensions are 9.7" >> x 6.7" x 3.4" and the weight is 5.0 lbs. Mine is on 24/7/365. IOTA also >> makes them in other output voltages and currents. >> >> Ken >> WA2LBI >> >> >> On Mon, Apr 20, 2020 at 15:21 Richard Donner >> wrote: >> >>> I need to get a new power supply for my upcoming K4 and accessories >>> before >>> my present 40 year old supply goes belly up. >>> I want reliability and no fussing , fixing or modifying things. Any >>> recommendations. >>> I heard that some of the old brands are not what they used to be. >>> Thanks, >>> Richard wa6kyr >>> >> -- >> >> Ken >> WA2LBI >> >> Sent from one of my mobile devices >> > From rick.nk7i at gmail.com Mon Apr 20 16:19:10 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Mon, 20 Apr 2020 13:19:10 -0700 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: <391b864c-7e92-2aa5-6a99-49c180c50d3f@gmail.com> Simply verify that the panel voltage is the same was what a known meter reads at the output, adjust the front panel meter as required.? (Most panel displays are off or simply not as accurate.)? Then one can use a permanent marker to place a line on the meter display, off the tip of the needle to quickly see any variance (in time, you'll squint less). Rick NK7I On 4/20/2020 1:10 PM, John Simmons wrote: > The same supply is sold under the DURACOMM name. I believe there is a > pot accessible through a hole in the case to adjust the voltage. > > My $0.02: I prefer supplies that are in a desktop case with meters for > current and voltage. The meters give me peace of mind and add > information and ambience to the ham shack. The Astron SS series seems > to be good. > > -de John NI0K > > Richard Donner wrote on 4/20/2020 2:59 PM: >> Hi Ken >> Thanks for the info. >> I am? not in a rush yet.?? I noticed that the voltage is 13.4.. Maybe a >> little higher might be better.? Not sure on the last point. >> I will check what else they make >> TU?? 73 >> Richard >> >> >> On Mon, Apr 20, 2020 at 12:51 PM Ken Winterling >> wrote: >> >>> Richard, >>> >>> I use an IOTA DLS-55 SMPS power supply ( >>> https://www.iotaengineering.com/dls55.htm).? It provides 55 amps, >>> doesn?t >>> produce RFI, is audibly quiet, and rugged.? The dimensions are 9.7" >>> x 6.7" >>> x 3.4" and the weight is 5.0 lbs.? Mine is on 24/7/365.? IOTA also >>> makes >>> them in other output voltages and currents. >>> >>> Ken >>> WA2LBI >>> >>> >>> On Mon, Apr 20, 2020 at 15:21 Richard Donner >>> wrote: >>> >>>> I need? to get a new power supply for my upcoming K4 and accessories >>>> before >>>> my present 40 year old supply goes belly up. >>>> I want reliability and no fussing , fixing or modifying things. Any >>>> recommendations. >>>> I heard that some of the old brands are not what they used to be. >>>> Thanks, >>>> Richard?? wa6kyr >>>> >>> -- >>> >>> Ken >>> WA2LBI >>> >>> Sent from one of my mobile devices >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com From wes_n7ws at triconet.org Mon Apr 20 16:33:38 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 20 Apr 2020 13:33:38 -0700 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: I second IOTA. I've used them in my RV, replacing another brand to get rid of the RFI.? Mission accomplished. Disclaimer:? IOTA is located in Tucson, and a long time ago in another life I moonlighted for the founders in another startup company. Wes? N7WS On 4/20/2020 12:51 PM, Ken Winterling wrote: > Richard, > > I use an IOTA DLS-55 SMPS power supply ( > https://www.iotaengineering.com/dls55.htm). It provides 55 amps, doesn?t > produce RFI, is audibly quiet, and rugged. The dimensions are 9.7" x 6.7" > x 3.4" and the weight is 5.0 lbs. Mine is on 24/7/365. IOTA also makes > them in other output voltages and currents. > > Ken > WA2LBI > From rmcgraw at blomand.net Mon Apr 20 16:37:42 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 20 Apr 2020 15:37:42 -0500 Subject: [Elecraft] KAT4 In-Reply-To: <003101d61718$81776db0$84664910$@erols.com> References: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> <003101d61718$81776db0$84664910$@erols.com> Message-ID: Per the manual, the KAT3A internal tuner for the K3S will match a SWR range of 10:1 with a 100 watt power rating.? {page 79}? And it will match a 20:1 SWR range with a 10 watt power rating.?? I've never encountered any of my crazy antennas that it wouldn't match. 73 Bob, K4TAX On 4/20/2020 8:35 AM, Charlie T wrote: > Well this MAY be a valid question, since I believe for example, the IC-7300 and/or IC-7610 have an "emergency" mode where the power is cut back to 50 watts and the allowable tuner's SWR range is extended from its normal full power mismatch capability. > If I remember correctly, its only 3:1 at 100 W, but will match an "emergency" use antenna if you have to. > > 10: 1 capability DOES put some hefty restraints on an internal tuner. > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of David Bunte > Sent: Monday, April 20, 2020 9:03 AM > To: Charles Sells > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KAT4 > > Charles - > > I don't "know" what the power handling capabilities are, but think I can safely assume that if it is in the K4 it can handle the power of the K4. I trust that Wayne, Eric, or someone else who "knows" the answer will chime in when they are able. > > 73 de Dave - K9FN > > On Mon, Apr 20, 2020 at 8:25 AM Charles Sells > wrote: > >> I can see from the literature that is on the website that the KAT4 ATU >> will handle a 10:1 matching range but don?t see what the power >> handling capabilities are. >> >> Anyone know? >> >> 73 >> Charles >> W4PPP >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> dpbunte 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 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 rmcgraw at blomand.net From rthorne at rthorne.net Mon Apr 20 16:39:05 2020 From: rthorne at rthorne.net (Richard Thorne) Date: Mon, 20 Apr 2020 15:39:05 -0500 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: <5e7a0059-9b67-6b3d-32a7-92450f53f1a6@rthorne.net> I have a couple DuraComm LP-25's.? I've never had a single issue with them.? I adjusted a pot and took the voltage up to 14.5 volts. The LP-25's are switching power supplies.? I have not detected any receiver noise, so they're clean in my setup.? They have a cooling fan which only comes on when there is a heavy load.? It gets a bit loud at times.? In my case, I'm normally driving an amp, so the power supply doesn't see much of a load with 25 watts output on the K3S. Rich - N5ZC On 4/20/2020 2:20 PM, Richard Donner wrote: > I need to get a new power supply for my upcoming K4 and accessories before > my present 40 year old supply goes belly up. > I want reliability and no fussing , fixing or modifying things. Any > recommendations. > I heard that some of the old brands are not what they used to be. > Thanks, > Richard wa6kyr > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rthorne at rthorne.net From k5atg.aaron at gmail.com Mon Apr 20 16:41:25 2020 From: k5atg.aaron at gmail.com (Aaron K5ATG) Date: Mon, 20 Apr 2020 15:41:25 -0500 Subject: [Elecraft] K2 Year In-Reply-To: <81936927-124e-9580-cef3-04b0198beb19@embarqmail.com> References: <5e9dd973.1c69fb81.231fd.06ba@mx.google.com> <81936927-124e-9580-cef3-04b0198beb19@embarqmail.com> Message-ID: Thanks for the info Don. On Mon, Apr 20, 2020 at 2:47 PM Don Wilhelm wrote: > When do you mean? There was no text in your post. Did you send in > HTML? If so, mailman would have stripped it out - you must use plain text. > > The K2 was initially designed and released to Field Testing in 1998. > There have been several design improvements since then, and at the time > of SN3000, the boards were re-done to incorporated all the upgrades on > the board. The only change since SN3000 is the keying waveform upgrade > which is installed as part of the kit starting with SN 4660 if I recall. > The kits are still being shipped and the serial numbers are > approaching 8000. > > I don't recall the years each of the upgrades were released. > Any early K2 can be upgraded to the current level with the kits and > instructions from Elecraft. > > 73, > Don W3FPR > > On 4/20/2020 1:18 PM, Aaron wrote: > > > -- '72 Aaron Scott K5ATG Mid-Del Amateur Radio Club From turnbull at net1.ie Mon Apr 20 16:50:23 2020 From: turnbull at net1.ie (Doug Turnbull) Date: Mon, 20 Apr 2020 20:50:23 -0000 Subject: [Elecraft] KAT4 In-Reply-To: References: <5D111EDA-949C-4357-AF06-82EA4AAC43C0@sellsfamily.net> <003101d61718$81776db0$84664910$@erols.com> Message-ID: <030a01d61755$5094b3f0$f1be1bd0$@net1.ie> Bob is right, I have even loaded a standard G5RV on 160M to make my first top band QSOs with the K3 at around 100W. I was not working the antenna against ground. It is an amazing tuner, well done Elecraft. 73 Doug EI2CN -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Bob McGraw K4TAX Sent: Monday 20 April 2020 20:38 To: elecraft at mailman.qth.net Subject: Re: [Elecraft] KAT4 Per the manual, the KAT3A internal tuner for the K3S will match a SWR range of 10:1 with a 100 watt power rating. {page 79} And it will match a 20:1 SWR range with a 10 watt power rating. I've never encountered any of my crazy antennas that it wouldn't match. 73 Bob, K4TAX On 4/20/2020 8:35 AM, Charlie T wrote: > Well this MAY be a valid question, since I believe for example, the IC-7300 and/or IC-7610 have an "emergency" mode where the power is cut back to 50 watts and the allowable tuner's SWR range is extended from its normal full power mismatch capability. > If I remember correctly, its only 3:1 at 100 W, but will match an "emergency" use antenna if you have to. > > 10: 1 capability DOES put some hefty restraints on an internal tuner. > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of David Bunte > Sent: Monday, April 20, 2020 9:03 AM > To: Charles Sells > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] KAT4 > > Charles - > > I don't "know" what the power handling capabilities are, but think I can safely assume that if it is in the K4 it can handle the power of the K4. I trust that Wayne, Eric, or someone else who "knows" the answer will chime in when they are able. > > 73 de Dave - K9FN > > On Mon, Apr 20, 2020 at 8:25 AM Charles Sells > wrote: > >> I can see from the literature that is on the website that the KAT4 ATU >> will handle a 10:1 matching range but don?t see what the power >> handling capabilities are. >> >> Anyone know? >> >> 73 >> Charles >> W4PPP >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this email >> list: http://www.qsl.net/donate.html Message delivered to >> dpbunte 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 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 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 turnbull at net1.ie From 99sunset at gmail.com Mon Apr 20 16:52:02 2020 From: 99sunset at gmail.com (Steve Hall) Date: Mon, 20 Apr 2020 16:52:02 -0400 Subject: [Elecraft] 40 meter net 4-19-2020 Message-ID: Thanks to all. Sorry if my notes missed anyone or any other errors. WM6P Steve GA K3s Net Control K8NU Carl OH K3s WB9JNZ Eric IL K3 N3KCB Tony DE NC0JW Jim CO KX3 KB9AVO Paul IN K3s KA4KXX Walter FL homebrew 25 Watts AB9PR Derick IL K3 AA5DK Jerry FL TS-440 AE1E Ken NM K3s WA0UPB Rex KS IC730 W1JWC Jerry MA Flex6400 From jim at audiosystemsgroup.com Mon Apr 20 16:55:00 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 20 Apr 2020 13:55:00 -0700 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: <6e23cb6e-cbbf-12b6-c701-04f77b90c5be@audiosystemsgroup.com> On 4/20/2020 1:05 PM, Rick Bates, NK7I wrote: > Wayne has said that 14.2V is desirable (as read on the display, so > ~14.4V at the source AND the input connector at the radio).? This > provides a more clean signal. That flies in the face of Ohm's law, which describes the IR voltage drop in the cable between the power supply terminals and the radio terminals. To get 14.2V at the radio, you'll need more than 14.2V at the power supply, and you'll need short, fat copper between them. Also, it's well known that most commercially available power distribution systems add both resistance and contact resistance to the path, so it's best to run a dedicated feed to the radio. Yes, Elecraft radios have less IMD with increased power supply voltage, up to their maximum rated voltage. The two K3s in my shack run from a 100Ah Bioenne Power LiFePO4 battery. It's much closer to one radio than the other; the power to the closer one is about 3 ft of #8; to the longer one, it's two runs in parallel, about 6 ft. I typically get about 13.4V at the radios, as indicated on their internal voltmeter during transmit. Note also that IMD in Elecraft output stages is greatest at maximum power out, and falls by a lot at 1/4 to 1/2 power. I mostly run my K3s with a power amp; one feeds a KPA1500, which requires 30-40W drive for full output, the other an 87A, which needs 40-55W. When I want to run 100W for contesting, I throttle the power back to a few watts and use the amps. The same issue is present with the 15W stage -- IMD is greatest just before the 100W power amp kicks in, around 15W. 73, Jim K9YC From 99sunset at gmail.com Mon Apr 20 16:55:20 2020 From: 99sunset at gmail.com (Steve Hall) Date: Mon, 20 Apr 2020 16:55:20 -0400 Subject: [Elecraft] Power supply for K4 Message-ID: I still like the Astron linear supplies. They go forever and make no RF noise but I am Old School. From kl7uw at acsalaska.net Mon Apr 20 17:04:21 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Mon, 20 Apr 2020 13:04:21 -0800 Subject: [Elecraft] Power supply for KS Message-ID: <202004202104.03KL4csq028251@mail41c28.carrierzone.com> Maybe find an old one that still working?? My Astron 50A analog PS has been run 24/7 for 16 years (or so) and was in commercial use before (years?). Previous to it I bought an Astron V35M (new in 1980) which lasted many years until blowing (open) one of the rectifier diodes. It sits on my workbench. But there are some good switching supplies (properly RF filtered). I only have three which is are HP 50v-50A supply* for my kilowatt amps. A toroid works well for RFI filter. *Likely surplus 48v telephone equipment. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From rmcgraw at blomand.net Mon Apr 20 17:11:14 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 20 Apr 2020 16:11:14 -0500 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: I'm using the Astron SS-30M for my station.? Actually I have 2 of them on the desk, one for the K3S and accessories and the other one for another brand of radio and accessories.? I have found they are reliable, quiet and no RFI issue between 160M and 1296 MHz, including 144 MHz, 432 MHz. 73 Bob, K4TAX On 4/20/2020 2:20 PM, Richard Donner wrote: > I need to get a new power supply for my upcoming K4 and accessories before > my present 40 year old supply goes belly up. > I want reliability and no fussing , fixing or modifying things. Any > recommendations. > I heard that some of the old brands are not what they used to be. > Thanks, > Richard wa6kyr > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rmcgraw at blomand.net Mon Apr 20 17:22:55 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Mon, 20 Apr 2020 16:22:55 -0500 Subject: [Elecraft] Power supply for KS In-Reply-To: References: Message-ID: <2475202f-4bb6-582f-6c34-58e3f12521b0@blomand.net> Just adjust the voltage to 14.5 to 14.8 no load, usually via an internal adjustment, and be done with it. 73 Bob, K4TAX On 4/20/2020 2:59 PM, Richard Donner wrote: > Hi Ken > Thanks for the info. > I am not in a rush yet. I noticed that the voltage is 13.4.. Maybe a > little higher might be better. Not sure on the last point. > I will check what else they make > TU 73 > Richard > > > On Mon, Apr 20, 2020 at 12:51 PM Ken Winterling wrote: > >> Richard, >> >> I use an IOTA DLS-55 SMPS power supply ( >> https://www.iotaengineering.com/dls55.htm). It provides 55 amps, doesn?t >> produce RFI, is audibly quiet, and rugged. The dimensions are 9.7" x 6.7" >> x 3.4" and the weight is 5.0 lbs. Mine is on 24/7/365. IOTA also makes >> them in other output voltages and currents. >> >> Ken >> WA2LBI >> >> >> On Mon, Apr 20, 2020 at 15:21 Richard Donner >> wrote: >> >>> I need to get a new power supply for my upcoming K4 and accessories >>> before >>> my present 40 year old supply goes belly up. >>> I want reliability and no fussing , fixing or modifying things. Any >>> recommendations. >>> I heard that some of the old brands are not what they used to be. >>> Thanks, >>> Richard wa6kyr >>> >> -- >> >> Ken >> WA2LBI >> >> Sent from one of my mobile devices >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 richarddnnr2 at gmail.com Mon Apr 20 17:57:03 2020 From: richarddnnr2 at gmail.com (Richard Donner) Date: Mon, 20 Apr 2020 14:57:03 -0700 Subject: [Elecraft] Power supply for KS Message-ID: Thanks for all the responses. Bother way the heading should have K4 Typo on my part 73 Richard From wes_n7ws at triconet.org Mon Apr 20 18:18:04 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 20 Apr 2020 15:18:04 -0700 Subject: [Elecraft] Power supply for KS In-Reply-To: <6e23cb6e-cbbf-12b6-c701-04f77b90c5be@audiosystemsgroup.com> References: <6e23cb6e-cbbf-12b6-c701-04f77b90c5be@audiosystemsgroup.com> Message-ID: Sadly, that is not always true.? There is a remarkable dependence upon frequency as well.? The sweet spot on my K3S is at 7 MHz.? The IMD is actually lower at 100W than at lower power.? That said it goes to pot at 1.8 and 25 MHz but is lower again at 28 MHz. Wes? N7WS On 4/20/2020 1:55 PM, Jim Brown wrote: > [snip] > > Note also that IMD in Elecraft output stages is greatest at maximum power out, > and falls by a lot at 1/4 to 1/2 power. From kl7cw at mtaonline.net Mon Apr 20 18:18:38 2020 From: kl7cw at mtaonline.net (Frederick Dwight) Date: Mon, 20 Apr 2020 14:18:38 -0800 Subject: [Elecraft] K4 Message-ID: <20200420222126903@smtp.email-protect.gosecure.net> Ralph, it is very easy to see if the mixing is happening in a RX or spectrum analyzer is to just dial in some attenuation. If the problem is within the device and you put in 10 dB of attenuation you will typically see a much greater decrease in the inter mod, probably 20 dB or much more. If the mixing happens outside the RX, a 10 dB attenuation should result in a 10 dB reduction of the inter mod. On the lower HF bands, with reasonable antennas, preamps are not usually required or even recommended. Sometimes even folks use some attenuation on say 160 meters. There are many possibilities for external mixing, not just the ones you mentioned. For example in other devices in house, such as a transmitter, TV preamp, SWR meter on another antenna, etc. Just one example I recently encountered, My 160 meter preamp I used on my RX array mixed two AM radio stations. It had back to back ?protective? diodes. After I abandoned this published design, I built a very robust preamp, no protective diodes were necessary, and I was able to use the array from below 500 KHz to well over 7 MHz without a BPF or HPF. I would guess that the mixing is occurring in your immediate neighborhood, not many hundreds of yards away. I would walk around the area with a portable SW RX, even a less than $100 one or even a thrift store battery powered one will probably be plenty sensitive, at least mine picks up SW stations many thousands of miles away with it?s 3 foot whip antenna. Rick KL7CW no problems with my K3S. Sent from Mail for Windows 10 From lladerman at earthlink.net Mon Apr 20 20:24:24 2020 From: lladerman at earthlink.net (W0FK) Date: Mon, 20 Apr 2020 17:24:24 -0700 (MST) Subject: [Elecraft] Some K4 updates from the engineering department In-Reply-To: References: Message-ID: <1587428664148-0.post@n2.nabble.com> Sounds great Wayne, it appears you and the engineers are staying productive and moving the ball forward. Very exciting information. It's occurred to me that you don't have enough testers for the K4. In the spirit of pitching in during these tough times, I'll offer myself as a K4 tester and help out in your efforts to beat back Covid-19 for the ham community. It's the least I can do. 73 Lou, W0FK ----- St. Louis, MO "The difference between stupidity and genius is that genius has its limits." Albert Einstein -- Sent from: http://elecraft.365791.n2.nabble.com/ From hfoperator at gmail.com Mon Apr 20 20:25:32 2020 From: hfoperator at gmail.com (T Jones) Date: Mon, 20 Apr 2020 20:25:32 -0400 Subject: [Elecraft] FS K2 Message-ID: I have a K2 for sale ser# 4491 original owner KAF2 audio filter KAT2 20 watt internal ATU KIO2 RS-232 and cable Asking $525 pics available K9NX Jonesy Please reply off list From tknorris0001 at gmail.com Mon Apr 20 21:08:39 2020 From: tknorris0001 at gmail.com (Tom Norris NB5Q) Date: Mon, 20 Apr 2020 19:08:39 -0600 Subject: [Elecraft] Elecraft K3s, etc. bonding Message-ID: I don't want to re-invent the wheel so I'm asking what method and attachment point, to each piece of equipment, you experienced K-Line owners use to bond the K3s, P3, SP3, etc. and then on to the station ground. I have Thank you, Tom NB5Q From jim at audiosystemsgroup.com Mon Apr 20 22:22:54 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 20 Apr 2020 19:22:54 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: References: Message-ID: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: > I'm asking what method and > attachment point, to each piece of equipment, you experienced K-Line owners > use to bond the K3s, P3, SP3, etc. and then on to the station ground. I use wires soldered to screw lugs, making sure that the attachment point is not insulated from the chassis by paint. Some of the equipment has a dedicated grounding screw. Shells of DB connectors SHOULD be bonded to the equipment chassis, but not always -- some mfrs screw up and fail to do that. Some of my equipment goes out in the field from time to time, so I use single circuit Power Pole connectors to make that easy. I'll use 2-6" between the lug and the PowerPole, then make a loop soldered to a PowerPoles that connect to each piece of gear in the string (so each connector has two wires). There are lots of suitable variations on this, depending on how the shack is laid out. These are the slides for my talks on station power, grounding, and bonding. http://k9yc.com/GroundingAndAudio.pdf 73, Jim K9YC From k6sdw.usa at gmail.com Mon Apr 20 22:43:57 2020 From: k6sdw.usa at gmail.com (Eddy - k6sdw) Date: Mon, 20 Apr 2020 19:43:57 -0700 Subject: [Elecraft] KX3 running FT8 and WSPR Message-ID: Hello reflector wizards, I have my KX3 running WSPR reliability but I'm having little success making contacts on FT8. My basic question, if WSPR is working and reporting my callsign reliability then FT8 should work with the same settings? Any recommendations for audio settings, I'm using Data A mode, 5 watts into an endfed dipole about 20' in the air.....not great antenna, but the best I can do in my current living situation. Many thanks and 73 Ed ~ k6sdw From donwilh at embarqmail.com Mon Apr 20 23:00:30 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 20 Apr 2020 23:00:30 -0400 Subject: [Elecraft] KX3 running FT8 and WSPR In-Reply-To: References: Message-ID: <59a3b39b-1d52-b924-bf5d-89bbd833ddf4@embarqmail.com> Ed, Are you driving the audio properly for the K3? You should set the audio to give you 4 bars on the ALC meter with the 5th bar flashing. That is the NO ALC point for the K3. Adjust the power with the K3 Power knob and not the audio level. 73, Don W3FPR On 4/20/2020 10:43 PM, Eddy - k6sdw wrote: > Hello reflector wizards, I have my KX3 running WSPR reliability but I'm > having little success making contacts on FT8. My basic question, if WSPR is > working and reporting my callsign reliability then FT8 should work with the > same settings? Any recommendations for audio settings, I'm using Data A > mode, 5 watts into an endfed dipole about 20' in the air.....not great > antenna, but the best I can do in my current living situation. > From huntinhmb at coastside.net Mon Apr 20 23:52:52 2020 From: huntinhmb at coastside.net (huntinhmb at coastside.net) Date: Mon, 20 Apr 2020 20:52:52 -0700 (PDT) Subject: [Elecraft] KX3 running FT8 and WSPR In-Reply-To: References: Message-ID: <1587441172.82389147@webmail.coastside.net> Have you checked PSK reporter ( [ https://www.pskreporter.info/ ]( https://www.pskreporter.info/ ) )? You can set up search parameters at the top of the map page to show stations that have heard you by band, mode and time. It will give you an idea of where you are being heard and how well you are getting out. Each reporter should show your signal strength at his location. GL 73, Brian, K0DTJ -----Original Message----- From: "Eddy - k6sdw" Sent: Monday, April 20, 2020 19:43 To: elecraft at mailman.qth.net Subject: [Elecraft] KX3 running FT8 and WSPR Hello reflector wizards, I have my KX3 running WSPR reliability but I'm having little success making contacts on FT8. My basic question, if WSPR is working and reporting my callsign reliability then FT8 should work with the same settings? Any recommendations for audio settings, I'm using Data A mode, 5 watts into an endfed dipole about 20' in the air.....not great antenna, but the best I can do in my current living situation. Many thanks and 73 Ed ~ k6sdw ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 nr4c at widomaker.com Tue Apr 21 00:11:08 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 21 Apr 2020 00:11:08 -0400 Subject: [Elecraft] KX3 running FT8 and WSPR In-Reply-To: References: Message-ID: <7618CB65-D7AB-441F-9C10-CB593BC76059@widomaker.com> Time! Your computer must be set to the correct time to the second. are you getting the correct indication of correct levels (ALC: 4 bars solid with 5th bar flickering). Have you done the temp stabilizing calibration? So, to sum up... correct time, correct levels, correct frequency Sent from my iPhone ...nr4c. bill > On Apr 20, 2020, at 10:46 PM, Eddy - k6sdw wrote: > > ?Hello reflector wizards, I have my KX3 running WSPR reliability but I'm > having little success making contacts on FT8. My basic question, if WSPR is > working and reporting my callsign reliability then FT8 should work with the > same settings? Any recommendations for audio settings, I'm using Data A > mode, 5 watts into an endfed dipole about 20' in the air.....not great > antenna, but the best I can do in my current living situation. > > Many thanks and 73 > > Ed ~ k6sdw > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Tue Apr 21 03:43:11 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 21 Apr 2020 10:43:11 +0300 Subject: [Elecraft] What's the best method to send high speed CW? In-Reply-To: <000001d61585$14239c00$3c6ad400$@carolinaheli.com> References: <000001d61585$14239c00$3c6ad400$@carolinaheli.com> Message-ID: <081f6f17-6642-a28f-a002-52cb867bf181@gmail.com> By computer? Winkey USB. Hands down. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 18/04/2020 16:27, AE4PB at carolinaheli.com wrote: > What's the best method to send high speed CW with a K3S via Computer? > Serial adapter to the Key port or software via USB or ?? > 73 > Jerry D. Moore From k2vco.vic at gmail.com Tue Apr 21 04:11:47 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 21 Apr 2020 11:11:47 +0300 Subject: [Elecraft] K4 In-Reply-To: <1941442144.68625.1587324668212@connect.xfinity.com> References: <1941442144.68625.1587324668212@connect.xfinity.com> Message-ID: <4887a5cd-bf55-e6e2-643a-f20b915af46f@gmail.com> I am line-of-sight to a 50kW AM transmitter (at least one, maybe more co-located at the site). I was using a vertical antenna, which was very good at picking up AM BC signals. I had a problem that the plentiful RF overrode the bias on my K3's T/R switch diodes, causing IMD all over the lower bands. I made a HP filter that cut off at about 2 MHz (I don't operate on 160m) and that cleaned it up. When I switched to a horizontal antenna, the problem went away. Now in addition, I am using a Johnson Matchbox, which is very good at attenuating out-of-band signals. If you have a similar problem and you make a HP filter, note that it has to have power-handling capability so you can transmit through it. The t/r switch and the K3 (and probably in the K4) is before the alternate RX input/output, so you can't just put the filter in the receive path. As someone else pointed out, none of this applies if the IM is being generated by chain-link fences or any other non-linear junctions out there. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 19/04/2020 22:31, RALPH TURK wrote: > Wayne et all > My only concern before I order a K4 is how it will work with two high power > AM transmitters near me. > 10KW day,1kw night KVOI south of me and a 50kw day only KUAT AM north of me. > At some time, I will need to borrow or rent a k4 for a week and see how it behaves > The majority of my operation is between 2-3.5 Mhz, 4 to 7mhz, 7.3-10mhz, 11mhz to14mhz. > I also use my radio on most ham bands. I currently use a K3 with all bells and 1000MP > The MP seems to handle the intermod better then the k3 > The intermod is not caused within the radios but cause by rusty chainlink fence, poor power line > grounds etc. My antennas are not the problem. I tried a sharp cutoff filter for everything below > 3.5mhz. No positive measurable results. > > Ralph, W7HSG, AFA9RT > 520-444-6610 From richard.corfield at gmail.com Tue Apr 21 05:14:47 2020 From: richard.corfield at gmail.com (Richard Corfield) Date: Tue, 21 Apr 2020 10:14:47 +0100 Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: References: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> Message-ID: It really sounds from the posts as if the radio and everything connected to it was acting as counterpoise to the ham-stick. This is dangerous because it means your radio is acting as part of the antenna. You don't want to touch antennas while they are transmitting, especially at higher power. The RF choke on the USB cable was doing its job to try to protect the computer from stray RF. If the radio is acting as part of the antenna then a lot of power is going to be heading down that USB cable (a USB-Cable-Counterpoise) and the choke will be absorbing it (or some of it) before it hits the computer. The choke has become hot because it's absorbing that RF energy. Current is flowing through it for it to get warm, so some energy will still be reaching the computer. It implies that a fair amount of your 50W may not be getting into the air at all but getting into equipment and anything touching or connected to it. - Richard On Mon, 20 Apr 2020 at 20:59, Rick Bates, NK7I wrote: > Jerry, > > Ignoring how you've set up your station for the moment (every station > has compromises but some push that to an extreme); the shutdown of the > connection is likely that RF got into the USB cable (as demonstrated by > the hot ferrite) which caused the USB port hardware to lock up. > > USB hardware can 'stick' so it won't work properly, a complete power > cycle empties it of any charge, 'unsticking' the hardware. (Yah a gross > simplification, but you get the point.) > > The only SURE way to restore it to function (assuming it's not blown) is > a complete power down (unplugged from all power, let the power supply > drain, disconnect the laptop battery, count another ten seconds) and > restart. That is why it worked after you 'cooled it off'. > > If you can shift to a real serial port (not a serial dongle), that will > help. USB is RF intolerant compared to serial. It's simplest to avoid > USB as much as feasible near any RF. > > If you can't avoid USB, you'll need to add a lot more ferrite or better > yet, improve the antenna situation dramatically. > > In the cases I MUST run a USB connection, I distance the antenna from > the computer as much as possible and I run <100 watts (QRP to me), but > generally that's when I run a portable station. Jim, K9YC will tell you > it's related to 'Pin 1' and the short version is that is has to do with > bonding all things to a common ground; USB devices often ignore this. > > In a few cases, improved bonding between the computer and radio /may/ > help, but I'd have low hopes if the antenna is mere feet away. Take the > hot ferrite as a warning sign, it's not a healthy environment. > > 73, > Rick NK7I > > > On 4/18/2020 5:46 PM, AE4PB at carolinaheli.com wrote: > > Today I was working a digital mode (FT8) and lost connection to the > radio. I > > cycled power with no success. On reseating the USB connection at the > > computer I felt the ferrite core was HOT. The cable didn't feel hot at > all. > > I'm using a 20m hamstick in the office as my antenna. I shut everything > down > > to cool off. Afterwards everything seems to be working correctly. > > > > Any ideas? > > > > Tnx and 73 > > > > Jerry D. Moore > > > > AE4PB > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 richard.corfield at gmail.com Tue Apr 21 05:21:08 2020 From: richard.corfield at gmail.com (Richard Corfield) Date: Tue, 21 Apr 2020 10:21:08 +0100 Subject: [Elecraft] USB Noise core gets hot when operating FT*? In-Reply-To: References: <01eb01d615e4$069d7ec0$13d87c40$@carolinaheli.com> Message-ID: You could try setting up counterpoises for the ham-stick. If it's for the 20m band, then ra few adial wires about 5m long should help. Connect to the earth side at the base of the ham-stick. They're 1/4 wavelength so if tuned correctly will act as a low impedance to the RF energy at the base of the antenna providing what some call a "virtual earth". They effectively form the bottom half of the dipole antenna. You'd want to protect your equipment. Another part of this equation would be to stop RF going back down the outside of the coax to the radio. If you don't have a choke ferrite to work with make a coil with the coax. Inductance increases with diameter and amount of turns. Also lower power. If you do the above then your antenna will be working more efficiently anyway and you may find that you're doing well on 10W or less as well as being safer. I got UK to USA on 10W on 20m this weekend using Morse Code. Antenna was bigger which helps, though it was a dipole who's main radiation pattern would have been more North/South (just the way our garden is oreinted) not East/West. - Richard On Tue, 21 Apr 2020 at 10:14, Richard Corfield wrote: > It really sounds from the posts as if the radio and everything connected > to it was acting as counterpoise to the ham-stick. This is dangerous > because it means your radio is acting as part of the antenna. You don't > want to touch antennas while they are transmitting, especially at higher > power. > > The RF choke on the USB cable was doing its job to try to protect the > computer from stray RF. If the radio is acting as part of the antenna then > a lot of power is going to be heading down that USB cable (a > USB-Cable-Counterpoise) and the choke will be absorbing it (or some of it) > before it hits the computer. The choke has become hot because it's > absorbing that RF energy. Current is flowing through it for it to get warm, > so some energy will still be reaching the computer. > > It implies that a fair amount of your 50W may not be getting into the air > at all but getting into equipment and anything touching or connected to it. > > - Richard > > > On Mon, 20 Apr 2020 at 20:59, Rick Bates, NK7I > wrote: > >> Jerry, >> >> Ignoring how you've set up your station for the moment (every station >> has compromises but some push that to an extreme); the shutdown of the >> connection is likely that RF got into the USB cable (as demonstrated by >> the hot ferrite) which caused the USB port hardware to lock up. >> >> USB hardware can 'stick' so it won't work properly, a complete power >> cycle empties it of any charge, 'unsticking' the hardware. (Yah a gross >> simplification, but you get the point.) >> >> The only SURE way to restore it to function (assuming it's not blown) is >> a complete power down (unplugged from all power, let the power supply >> drain, disconnect the laptop battery, count another ten seconds) and >> restart. That is why it worked after you 'cooled it off'. >> >> If you can shift to a real serial port (not a serial dongle), that will >> help. USB is RF intolerant compared to serial. It's simplest to avoid >> USB as much as feasible near any RF. >> >> If you can't avoid USB, you'll need to add a lot more ferrite or better >> yet, improve the antenna situation dramatically. >> >> In the cases I MUST run a USB connection, I distance the antenna from >> the computer as much as possible and I run <100 watts (QRP to me), but >> generally that's when I run a portable station. Jim, K9YC will tell you >> it's related to 'Pin 1' and the short version is that is has to do with >> bonding all things to a common ground; USB devices often ignore this. >> >> In a few cases, improved bonding between the computer and radio /may/ >> help, but I'd have low hopes if the antenna is mere feet away. Take the >> hot ferrite as a warning sign, it's not a healthy environment. >> >> 73, >> Rick NK7I >> >> >> On 4/18/2020 5:46 PM, AE4PB at carolinaheli.com wrote: >> > Today I was working a digital mode (FT8) and lost connection to the >> radio. I >> > cycled power with no success. On reseating the USB connection at the >> > computer I felt the ferrite core was HOT. The cable didn't feel hot at >> all. >> > I'm using a 20m hamstick in the office as my antenna. I shut everything >> down >> > to cool off. Afterwards everything seems to be working correctly. >> > >> > Any ideas? >> > >> > Tnx and 73 >> > >> > Jerry D. Moore >> > >> > AE4PB >> > >> > ______________________________________________________________ >> > Elecraft mailing list >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > Help: http://mailman.qth.net/mmfaq.htm >> > Post: mailto:Elecraft at mailman.qth.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 >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 AE4PB at carolinaheli.com Tue Apr 21 07:19:26 2020 From: AE4PB at carolinaheli.com (AE4PB at carolinaheli.com) Date: Tue, 21 Apr 2020 07:19:26 -0400 Subject: [Elecraft] USB Noise core gets hot when operating FT*? Message-ID: <06b801d617ce$b8575000$2905f000$@carolinaheli.com> Thanks Rick, My Antenna situation is temporary. I purchased a Hustler 6BTV from DX Engineering am working on getting it installed. It may take several weeks as I work full time and am working towards my MBA full time. I may shuffle the project priorities around and work on the Coax routing to move my temporary antenna outdoors. Since it's a temporary setup I'll be routing out through the window which is going to take a bit of construction to achieve something that's secure and energy friendly. I'm not able to avoid using USB but I can certainly move the antenna. Jerry Moore AE4PB >Jerry, >Ignoring how you've set up your station for the moment (every station has compromises but some push that to an extreme); the shutdown? of the connection is likely that RF got into the USB cable (as demonstrated by the hot >ferrite) which caused the USB port hardware to lock up. >USB hardware can 'stick' so it won't work properly, a complete power cycle empties it of any charge, 'unsticking' the hardware.? (Yah a gross simplification, but you get the point.) >The only SURE way to restore it to function (assuming it's not blown) is a complete power down (unplugged from all power, let the power supply drain, disconnect the laptop battery, count another ten seconds) and restart.? That is >why it worked after you 'cooled it off'. >If you can shift to a real serial port (not a serial dongle), that will help.? USB is RF intolerant compared to serial.? It's simplest to avoid USB as much as feasible near any RF. >If you can't avoid USB, you'll need to add a lot more ferrite or better yet, improve the antenna situation dramatically. >In the cases I MUST run a USB connection, I distance the antenna from the computer as much as possible and I run <100 watts (QRP to me), but generally that's when I run a portable station.? Jim, K9YC will tell you it's related to 'Pin >1' and the short version is that is has to do with bonding all things to a common ground; USB devices often ignore this. >In a few cases, improved bonding between the computer and radio /may/ help, but I'd have low hopes if the antenna is mere feet away.? Take the hot ferrite as a warning sign, it's not a healthy environment. >73, >Rick NK7I From Lyn at LNAINC.com Tue Apr 21 08:19:42 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 21 Apr 2020 07:19:42 -0500 Subject: [Elecraft] Urgent Chrome Update Message-ID: <028201d617d7$2416a680$6c43f380$@LNAINC.com> If you haven't already installed the latest update, suggest you do so ASAP. Link to article below. 73 Lyn, W0LEN https://www.forbes.com/sites/gordonkelly/2020/04/18/google-chrome-81-critica l-security-exploit-upgrade-warning-update-chrome-browser/ From n6lrv at outlook.com Tue Apr 21 09:31:22 2020 From: n6lrv at outlook.com (n6lrv at outlook.com) Date: Tue, 21 Apr 2020 13:31:22 +0000 Subject: [Elecraft] Urgent Chrome Update In-Reply-To: <028201d617d7$2416a680$6c43f380$@LNAINC.com> References: <028201d617d7$2416a680$6c43f380$@LNAINC.com> Message-ID: Enclosing the link between <> characters keeps it complete; ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Lyn Norstad Sent: Tuesday, April 21, 2020 5:19 AM To: Elecraft Reflector Subject: [Elecraft] Urgent Chrome Update If you haven't already installed the latest update, suggest you do so ASAP. Link to article below. 73 Lyn, W0LEN https://www.forbes.com/sites/gordonkelly/2020/04/18/google-chrome-81-critica l-security-exploit-upgrade-warning-update-chrome-browser/ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n6lrv at outlook.com From kevin at ve3syb.ca Tue Apr 21 10:01:27 2020 From: kevin at ve3syb.ca (Kevin Cozens) Date: Tue, 21 Apr 2020 10:01:27 -0400 Subject: [Elecraft] Urgent Chrome Update In-Reply-To: <028201d617d7$2416a680$6c43f380$@LNAINC.com> References: <028201d617d7$2416a680$6c43f380$@LNAINC.com> Message-ID: <07028751-083b-0854-1367-0b601e8bb0d6@ve3syb.ca> On 2020-04-21 8:19 a.m., Lyn Norstad wrote: > If you haven't already installed the latest update, suggest you do so ASAP. > > > > Link to article below. That looks like old news. The article talks about version 81 of Chrome. On my Linux machine I already have version 83 installed. -- 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 rmcgraw at blomand.net Tue Apr 21 10:22:13 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Tue, 21 Apr 2020 09:22:13 -0500 Subject: [Elecraft] Urgent Chrome Update In-Reply-To: <07028751-083b-0854-1367-0b601e8bb0d6@ve3syb.ca> References: <028201d617d7$2416a680$6c43f380$@LNAINC.com> <07028751-083b-0854-1367-0b601e8bb0d6@ve3syb.ca> Message-ID: I updated my Windows 10 machines this morning. They show: Google Chrome is up to date Version 81.0.4044.113 (Official Build) (64-bit) 73 Bob, K4TAX On 4/21/2020 9:01 AM, Kevin Cozens wrote: > On 2020-04-21 8:19 a.m., Lyn Norstad wrote: >> If you haven't already installed the latest update, suggest you do so >> ASAP. >> >> >> Link to article below. > > That looks like old news. The article talks about version 81 of > Chrome. On my Linux machine I already have version 83 installed. > From Lyn at LNAINC.com Tue Apr 21 10:42:50 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 21 Apr 2020 09:42:50 -0500 Subject: [Elecraft] Urgent Chrome Update In-Reply-To: <07028751-083b-0854-1367-0b601e8bb0d6@ve3syb.ca> References: <028201d617d7$2416a680$6c43f380$@LNAINC.com> <07028751-083b-0854-1367-0b601e8bb0d6@ve3syb.ca> Message-ID: <02dc01d617eb$2358bda0$6a0a38e0$@LNAINC.com> Kevin - Are you sure? Sounds like a Beta version. The latest "stable" version of Chrome for Linux reportedly is indeed ver. 81.0.4044.113. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Kevin Cozens Sent: Tuesday, April 21, 2020 9:01 AM To: Elecraft Reflector Subject: Re: [Elecraft] Urgent Chrome Update On 2020-04-21 8:19 a.m., Lyn Norstad wrote: > If you haven't already installed the latest update, suggest you do so ASAP. > > > > Link to article below. That looks like old news. The article talks about version 81 of Chrome. On my Linux machine I already have version 83 installed. -- Cheers! Kevin. From Lyn at LNAINC.com Tue Apr 21 10:59:49 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 21 Apr 2020 09:59:49 -0500 Subject: [Elecraft] KPA1500 Tuner Question for the Group Message-ID: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> Since the tuner built in to the KPA1500 is not able to handle the full power of the amp at a 10:1 SWR (like the KAT/KPA500 Combo), what tuner(s) are you using if you need that kind of matching capability (i.e.: for balanced feed, etc.)? 73 Lyn, W0LEN From chrisc at chris.org Tue Apr 21 11:09:31 2020 From: chrisc at chris.org (Chris Cox) Date: Tue, 21 Apr 2020 10:09:31 -0500 (CDT) Subject: [Elecraft] scratchs on display In-Reply-To: References: Message-ID: Thanks everyone for all of the great suggestions. -- Chris Cox, N0UK, G4JEC chrisc at chris.org From carlos.on6cn at gmail.com Tue Apr 21 11:17:10 2020 From: carlos.on6cn at gmail.com (carlos.p) Date: Tue, 21 Apr 2020 08:17:10 -0700 (MST) Subject: [Elecraft] k2 display side emitting leds Message-ID: <1587482230580-0.post@n2.nabble.com> hi, for contruction of the lcd diplay there are 2 small side emitting leds on the two sides of the display they wil fit in te tiny led spacers who fit in d2 and d3 on the frontpanel board, have these leds a + to consider, their are two plusses on d2 and d3 on the board carlos -- Sent from: http://elecraft.365791.n2.nabble.com/ From KY5G at montac.com Tue Apr 21 11:23:15 2020 From: KY5G at montac.com (Clay Autery) Date: Tue, 21 Apr 2020 10:23:15 -0500 Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> Message-ID: <028d8aa5-72c8-d8f8-bda9-be247c0940f7@montac.com> To my knowledge the best (only?) auto-tuner capable of handling legal limit is the HF Auto, which is rated at 18800 watts....? Don't remember the duty cycle spec. However, AFTER making my way through the learning curve on it and the software available 3rd party, I have to say, it is simply awesome. Of course, I don't think it will do 10:1 either....? Can't imagine the monster tuner (likely manual) that you'd have to build to handle 10:1 at 1500Watss, 100% duty cycle... 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 04/21/20 09:59, Lyn Norstad wrote: > Since the tuner built in to the KPA1500 is not able to handle the full power > of the amp at a 10:1 SWR (like the KAT/KPA500 Combo), what tuner(s) are you > using if you need that kind of matching capability (i.e.: for balanced feed, > etc.)? > > > > 73 > > Lyn, W0LEN From carlos.on6cn at gmail.com Tue Apr 21 11:26:35 2020 From: carlos.on6cn at gmail.com (carlos.p) Date: Tue, 21 Apr 2020 08:26:35 -0700 (MST) Subject: [Elecraft] k2 building Message-ID: <1587482795424-0.post@n2.nabble.com> in my former post about the side emitting leds i forgot to mension its for k2 kit carlos -- Sent from: http://elecraft.365791.n2.nabble.com/ From rick.nk7i at gmail.com Tue Apr 21 11:33:53 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Tue, 21 Apr 2020 08:33:53 -0700 Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> Message-ID: <0e5f8248-e88d-8b52-426f-b53c1c8c04b1@gmail.com> I use resonant antennas now, but prior to this the KAT500 and before that the Heathkit SA-2060 (which can use darn near anything). Antenna Tuner SA-2060 Amateur-D Heathkit Brand, Heath Co.; B It is safely stored away, one never knows if it will be needed again. Rick NK7I On 4/21/2020 7:59 AM, Lyn Norstad wrote: > Since the tuner built in to the KPA1500 is not able to handle the full power > of the amp at a 10:1 SWR (like the KAT/KPA500 Combo), what tuner(s) are you > using if you need that kind of matching capability (i.e.: for balanced feed, > etc.)? > > > > 73 > > Lyn, W0LEN > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Lyn at LNAINC.com Tue Apr 21 12:24:58 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 21 Apr 2020 11:24:58 -0500 Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: <028d8aa5-72c8-d8f8-bda9-be247c0940f7@montac.com> References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> <028d8aa5-72c8-d8f8-bda9-be247c0940f7@montac.com> Message-ID: <034901d617f9$6a90ac10$3fb20430$@LNAINC.com> Thanks Clay. The Palstar HF Auto, rated at 1800 watts PEP, "looks like" it has the same components as their 5K manual tuner, which is rated at 3500 watts PEP continuous and also rated at 2000 ohms max, which is 40:1. What 3rd party software are you using? 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Clay Autery Sent: Tuesday, April 21, 2020 10:23 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] KPA1500 Tuner Question for the Group To my knowledge the best (only?) auto-tuner capable of handling legal limit is the HF Auto, which is rated at 18800 watts.... Don't remember the duty cycle spec. However, AFTER making my way through the learning curve on it and the software available 3rd party, I have to say, it is simply awesome. Of course, I don't think it will do 10:1 either.... Can't imagine the monster tuner (likely manual) that you'd have to build to handle 10:1 at 1500Watss, 100% duty cycle... 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 04/21/20 09:59, Lyn Norstad wrote: > Since the tuner built in to the KPA1500 is not able to handle the full power > of the amp at a 10:1 SWR (like the KAT/KPA500 Combo), what tuner(s) are you > using if you need that kind of matching capability (i.e.: for balanced feed, > etc.)? > > > > 73 > > Lyn, W0LEN ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 donwilh at embarqmail.com Tue Apr 21 12:51:36 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 21 Apr 2020 12:51:36 -0400 Subject: [Elecraft] k2 display side emitting leds In-Reply-To: <1587482230580-0.post@n2.nabble.com> References: <1587482230580-0.post@n2.nabble.com> Message-ID: <558f4fef-a49e-b808-886c-db0a7327b470@embarqmail.com> Carlos, Install them with the LED shining toward the center of the board and the polarity will be automatic. 73, Don W3FPR On 4/21/2020 11:17 AM, carlos.p wrote: > hi, for contruction of the lcd diplay there are 2 small side emitting leds on > the two sides of the display > they wil fit in te tiny led spacers who fit in d2 and d3 on the frontpanel > board, > have these leds a + to consider, their are two plusses on d2 and d3 on the > board From carlos.on6cn at gmail.com Tue Apr 21 12:54:04 2020 From: carlos.on6cn at gmail.com (carlos popelier) Date: Tue, 21 Apr 2020 18:54:04 +0200 Subject: [Elecraft] k2 display side emitting leds In-Reply-To: <558f4fef-a49e-b808-886c-db0a7327b470@embarqmail.com> References: <1587482230580-0.post@n2.nabble.com> <558f4fef-a49e-b808-886c-db0a7327b470@embarqmail.com> Message-ID: Great, thanks! Op di 21 apr. 2020 om 18:51 schreef Don Wilhelm : > Carlos, > > Install them with the LED shining toward the center of the board and the > polarity will be automatic. > > 73, > Don W3FPR > > On 4/21/2020 11:17 AM, carlos.p wrote: > > hi, for contruction of the lcd diplay there are 2 small side emitting > leds on > > the two sides of the display > > they wil fit in te tiny led spacers who fit in d2 and d3 on the > frontpanel > > board, > > have these leds a + to consider, their are two plusses on d2 and d3 on > the > > board > -- mvg carlos popelier regards carlos popelier From w2up at comcast.net Tue Apr 21 12:55:06 2020 From: w2up at comcast.net (Barry) Date: Tue, 21 Apr 2020 09:55:06 -0700 (MST) Subject: [Elecraft] K3 (not S) line out question Message-ID: <1587488106296-0.post@n2.nabble.com> The manual says, "Normally, the left channel is main receiver audio, and the right channel is sub receiver audio (if applicable). " So is the left channel (main) the tip and the right channel (subrcvr) the ring? Tnx, Barry W2UP -- Sent from: http://elecraft.365791.n2.nabble.com/ From vicd at uwaterloo.ca Tue Apr 21 13:03:43 2020 From: vicd at uwaterloo.ca (Vic DiCiccio VE3YT) Date: Tue, 21 Apr 2020 10:03:43 -0700 (MST) Subject: [Elecraft] FS: K3/0-Mini-F and RR boxes+cables Message-ID: <1587488623695-0.post@n2.nabble.com> For sale, my K3/0 Mini, used twice, and the Remote Rig boxes bought pre-configured from Elecraft, plus cables to connect it to the K3/0 Mini and a K3. Asking $650 for the K3/0, $500 for the Remote Rig boxes and cables, and $1100 for all, plus shipping. Email is good on qrz.com, vicd at uwaterloo dot ca. Pics: img src=http://99.250.127.104/remote1.jpg img src=http://99.250.127.104/remote2.jpg img src=http://99.250.127.104/remote3.jpg img src=http://99.250.127.104/remote5.jpg Thanks and 73, Vic VE3YT -- Sent from: http://elecraft.365791.n2.nabble.com/ From donwilh at embarqmail.com Tue Apr 21 13:30:24 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 21 Apr 2020 13:30:24 -0400 Subject: [Elecraft] K3 (not S) line out question In-Reply-To: <1587488106296-0.post@n2.nabble.com> References: <1587488106296-0.post@n2.nabble.com> Message-ID: <96865fbb-75ed-4e3c-9b8a-e993acc1ee4a@embarqmail.com> That is the convention for audio cables. So YES. 73, Don W3FPR On 4/21/2020 12:55 PM, Barry wrote: > The manual says, "Normally, the left channel is > main receiver audio, and the right channel is sub > receiver audio (if applicable). " > > So is the left channel (main) the tip and the right channel (subrcvr) the > ring? From k6sdw.usa at gmail.com Tue Apr 21 13:48:40 2020 From: k6sdw.usa at gmail.com (Eddy - k6sdw) Date: Tue, 21 Apr 2020 10:48:40 -0700 Subject: [Elecraft] FT8 working Message-ID: Thanks to all the KX3 wizards FT8 is working now. The problem was between a lack of strong RF signal and my audio levels I'm now making contacts. Definitely, the bands are really busy at night!! I'm going back to chasing SOTA activators on CW.....73 k6sdw From jim at audiosystemsgroup.com Tue Apr 21 14:00:00 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 21 Apr 2020 11:00:00 -0700 Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: <0e5f8248-e88d-8b52-426f-b53c1c8c04b1@gmail.com> References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> <0e5f8248-e88d-8b52-426f-b53c1c8c04b1@gmail.com> Message-ID: <7b85c1b7-359c-a758-10df-3f5cc3c1778c@audiosystemsgroup.com> On 4/21/2020 8:33 AM, Rick Bates, NK7I wrote: > Antenna Tuner SA-2060 Amateur-D Heathkit I had one of these for a month or two from a neighbor who was moving and wanted me to sell if for him. It was not nearly as good as my vintage Ten Tec 238 with fixed caps replaced by higher voltage parts. > > It is safely stored away, one never knows if it will be needed again. So is my 238. 73, Jim K9YC From w2up at comcast.net Tue Apr 21 14:04:13 2020 From: w2up at comcast.net (Barry) Date: Tue, 21 Apr 2020 11:04:13 -0700 (MST) Subject: [Elecraft] K3 (not S) line out question In-Reply-To: <96865fbb-75ed-4e3c-9b8a-e993acc1ee4a@embarqmail.com> References: <1587488106296-0.post@n2.nabble.com> <96865fbb-75ed-4e3c-9b8a-e993acc1ee4a@embarqmail.com> Message-ID: <1587492253948-0.post@n2.nabble.com> Thanks Don. -- Sent from: http://elecraft.365791.n2.nabble.com/ From xdavid at cis-broadband.com Tue Apr 21 15:28:26 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Tue, 21 Apr 2020 12:28:26 -0700 Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> Message-ID: Well, not all 10:1 conditions are equal (low impedances tend to give higher tuner voltages and power loss than higher impedances), and of course 160m is generally the most problematic band because it takes so much capacitance and inductance to get a decent result.? But playing around with TLW, the free transmission line software that comes with the ARRL Antenna Book is very informative since it also includes a built in tuner calculator.? For a typical high pass T-Network tuner, the internal voltages can approach 4,000 volts at 1.8 MHz with a 20 -j90 load (roughly 10:1 SWR), depending upon the size of the output load capacitor.? That pretty much rules out relay switch tuning unless anyone knows where they can steal a large quantity of vacuum relays, so we're talking some pretty large motor driven components if it was to be an auto tune unit. I'm in the process of building my own high power manual tuner for use in the shack, and it will be a high pass T-network with additional high power ceramic doorknob capacitors that can be switch selected in parallel with the main breadslicers.? There are some incredibly high power NOS doorknobs available on eBay from Russian and Ukrainian vendors at remarkably low prices.? I've bought from several suppliers and have been pleased each time.? Here's an example from an Austrian vendor from whom I have recently purchased these exact units: *https://tinyurl.com/ybofl2os *In my case, in addition to switchable fixed parallel capacitors for both the input and output variable capacitors, I will also have a switch that shorts out one or the other in order to convert the tuner to an L-Network in case the load prefers it. Many years ago somebody whose callsign I have since forgotten came up with the idea of making a remotely tuned high power L-Network tuner by coupling the shafts of a rotary inductor and a variable capacitor together and turning them at the same time with a single DC motor through a gear reducer.? It's not as precise as being able to tune each individually, but it doesn't really need to be.? The capacitor goes through it's full range every turn of the inductor, and you simply reverse the polarity of the DC voltage to tune back and forth until you see a match at the shack.? However, unless you have a REALLY large variable capacitor, or some means of switching in parallel capacitors, this technique probably doesn't work as well on the lower bands and you'd want to know in advance whether your load was higher or lower than 50 ohms, which often determines whether you use the capacitor input or inductor input configuration.? It's a great way to make a wide range SWR extender for a single band, though. Sorry ... this post turned into more of a ramble than I planned. 73, Dave?? AB7E On 4/21/2020 7:59 AM, Lyn Norstad wrote: > Since the tuner built in to the KPA1500 is not able to handle the full power > of the amp at a 10:1 SWR (like the KAT/KPA500 Combo), what tuner(s) are you > using if you need that kind of matching capability (i.e.: for balanced feed, > etc.)? > > > > 73 > > Lyn, W0LEN > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to xdavid at cis-broadband.com From billamader at gmail.com Tue Apr 21 16:59:00 2020 From: billamader at gmail.com (K8TE) Date: Tue, 21 Apr 2020 13:59:00 -0700 (MST) Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: <034901d617f9$6a90ac10$3fb20430$@LNAINC.com> References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> <028d8aa5-72c8-d8f8-bda9-be247c0940f7@montac.com> <034901d617f9$6a90ac10$3fb20430$@LNAINC.com> Message-ID: <1587502740911-0.post@n2.nabble.com> The Palstar-HF Auto has 100% duty cycle and a maximum 8:1 "matching range", according to its manual. I have a pair of the Nye Viking MB-V-A tuners which handle 1,500 Watts with no noticeable signs of distress although I haven't used them much on RTTY, and definitely not in a contest. They're useful in a few cases where the KPA1500 internal tuner can't handle the VSWR. I too would be interested in the 3rd party software you are using Len. 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From gregg.w6izt1 at gmail.com Tue Apr 21 17:13:33 2020 From: gregg.w6izt1 at gmail.com (gregg.w6izt1 at gmail.com) Date: Tue, 21 Apr 2020 17:13:33 -0400 Subject: [Elecraft] OT Recommendation Audio Spectrum Analyzer app for Win10 In-Reply-To: <504c780c-102e-b26f-10c0-6eb04580177f@embarqmail.com> References: <005c01d6172b$640db1e0$2c2915a0$@gmail.com> <504c780c-102e-b26f-10c0-6eb04580177f@embarqmail.com> Message-ID: <036a01d61821$b73a5890$25af09b0$@gmail.com> Thanks all -----Original Message----- From: Don Wilhelm Sent: Monday, April 20, 2020 12:54 To: gregg.w6izt1 at gmail.com; Elecraft at mailman.qth.net Subject: Re: [Elecraft] OT Recommendation Audio Spectrum Analyzer app for Win10 Gregg, You can download Spectrogram from my website www.w3fpr.com. Look near the bottom of the home page for the link. I use version 16 on Windows 10. Spectrum Lab is another alternative, but the learning curve is steeper than with Spectrogram. 73, Don W3FPR On 4/20/2020 11:50 AM, gregg.w6izt1 at gmail.com wrote: > Looking for recommendations > From ab4iq at comcast.net Tue Apr 21 17:37:38 2020 From: ab4iq at comcast.net (Ed Pflueger) Date: Tue, 21 Apr 2020 16:37:38 -0500 Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> Message-ID: <01d201d61825$14db47e0$3e91d7a0$@comcast.net> I use the Palstar HF-Auto for 80 and 160. The Tuner in the KPA1500 works great on my Hy-gain 6 meter, TH11, and Hy-Tower and it only has to teak just a hair but normally I just leave the tuner in By-Pass mode and the HF-Auto turns into an antenna switch. Probably the best I've ever had are the Ten Tec 238 series of tuners. I should have kept the last one but I didn't. It also had the Balun for twin lead built in as well. In my Man Cave in the garage I have the KPA500/KAT500 combo and they work the same antennas just fine. Ed.. AB4IQ -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Lyn Norstad Sent: Tuesday, April 21, 2020 10:00 AM To: Elecraft at mailman.qth.net Subject: [Elecraft] KPA1500 Tuner Question for the Group Since the tuner built in to the KPA1500 is not able to handle the full power of the amp at a 10:1 SWR (like the KAT/KPA500 Combo), what tuner(s) are you using if you need that kind of matching capability (i.e.: for balanced feed, etc.)? 73 Lyn, W0LEN ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 rwnewbould at comcast.net Tue Apr 21 18:11:42 2020 From: rwnewbould at comcast.net (Rich) Date: Tue, 21 Apr 2020 18:11:42 -0400 Subject: [Elecraft] KRC2 setup for Icom Message-ID: <877f4145-dcb5-0299-cb41-d296243ca328@comcast.net> Does anyone have any experience using the KRC2 with an Icom radio?? This is a working KRC2 that was on a K3 at one time. To start I cannot get the KRC2 to connect to my PC.? I have used straight through cable, Null modem Cable and a USB to Serial Cable.? I have run the program on an old XP laptop and my Win10 machine.?? I have even used a "real" comport.? None of those configurations will connect to the device.?? The DL switch is set properly. The KRC2 passes all of the manual button press tests. I have the jumpers set for ICOM on KRC2 board.? The ICOM is sending the band voltage to the unit as measured with a Volt meter. Do you really need the computer to make it work?? I am thinking that is mainly for firmware and antenna relay settings I am just trying to control a 419B bandpass filter. Any thoughts? Rich K3RWN From jackbrindle at me.com Tue Apr 21 18:58:16 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 21 Apr 2020 15:58:16 -0700 Subject: [Elecraft] KRC2 setup for Icom In-Reply-To: <877f4145-dcb5-0299-cb41-d296243ca328@comcast.net> References: <877f4145-dcb5-0299-cb41-d296243ca328@comcast.net> Message-ID: <0394F72D-17D6-4EDB-BC9B-B3CD2133DBC6@me.com> Rich; What are the jumper settings in the KRC2? It is _very_ important not to use a straight-through cable with the KRC2. As documented in the KRC2 manual, the pins are connected to the microcontroller, and the +/- 12 V excursions of the RS-232 levels will damage the microcontroller I/O pins. There are two voltages you need from the Icom, the band Voltage, and the reference voltage. The band voltage output from some Icom radios have been shown to drift during transmit, so much that they may show a completely different band. For this reason the band reference voltage (+8V) needs to be used. It is this voltage that drifts, and thus the Band voltage follows. With that in mind, the W9 - W22 jumper settings are important and will connect/disconnec the various pins to the DE9 connectors from the microcontroller. 73! Jack, W6FB > On Apr 21, 2020, at 3:11 PM, Rich wrote: > > Does anyone have any experience using the KRC2 with an Icom radio? This is a working KRC2 that was on a K3 at one time. > > To start I cannot get the KRC2 to connect to my PC. I have used straight through cable, Null modem Cable and a USB to Serial Cable. I have run the program on an old XP laptop and my Win10 machine. I have even used a "real" comport. None of those configurations will connect to the device. The DL switch is set properly. > > The KRC2 passes all of the manual button press tests. > > I have the jumpers set for ICOM on KRC2 board. The ICOM is sending the band voltage to the unit as measured with a Volt meter. > > Do you really need the computer to make it work? I am thinking that is mainly for firmware and antenna relay settings > > I am just trying to control a 419B bandpass filter. > > Any thoughts? > > Rich > > K3RWN > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Tue Apr 21 19:11:17 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 21 Apr 2020 19:11:17 -0400 Subject: [Elecraft] KRC2 setup for Icom In-Reply-To: <877f4145-dcb5-0299-cb41-d296243ca328@comcast.net> References: <877f4145-dcb5-0299-cb41-d296243ca328@comcast.net> Message-ID: Rich, What baud rate are you trying to use? The KRC2 is limited to 19.2k. Double check the jumpers for the RS232 port. Follow the instructions in the manual to download the firmware. You only need to connect the KRC2 to the computer for firmware, but you can connect the serial port on the ICOM through the KRC2 (but the speed needs to be limited to 19.2k. I see Jack Brindle sent a response - he is the designer and therefore the expert. 73, Don W3FPR On 4/21/2020 6:11 PM, Rich wrote: > Does anyone have any experience using the KRC2 with an Icom radio?? This > is a working KRC2 that was on a K3 at one time. > > To start I cannot get the KRC2 to connect to my PC.? I have used > straight through cable, Null modem Cable and a USB to Serial Cable.? I > have run the program on an old XP laptop and my Win10 machine.?? I have > even used a "real" comport.? None of those configurations will connect > to the device.?? The DL switch is set properly. > > The KRC2 passes all of the manual button press tests. > > I have the jumpers set for ICOM on KRC2 board.? The ICOM is sending the > band voltage to the unit as measured with a Volt meter. > From rwnewbould at comcast.net Tue Apr 21 19:17:40 2020 From: rwnewbould at comcast.net (Rich) Date: Tue, 21 Apr 2020 19:17:40 -0400 Subject: [Elecraft] KRC2 setup for Icom In-Reply-To: <0394F72D-17D6-4EDB-BC9B-B3CD2133DBC6@me.com> References: <877f4145-dcb5-0299-cb41-d296243ca328@comcast.net> <0394F72D-17D6-4EDB-BC9B-B3CD2133DBC6@me.com> Message-ID: <0926d236-d358-8135-50db-c254e27aba27@comcast.net> Installed Jumpers W1,2,3?? W11,12, 19,20 DB9 from Icom Radio? Pin 4= 8v ref,? Pin9= Icom Band Voltage Pin1=GND Do you mean a straight through cable from PC to KRC2??? I am sure I did not break anything.? I only had Pin 2 and 3 set for straight and null.?? Those pins should certainly not have 12v on them.? I hope Rich On 4/21/2020 18:58 PM, Jack Brindle wrote: > Rich; > > What are the jumper settings in the KRC2? > > It is _very_ important not to use a straight-through cable with the KRC2. As documented in the KRC2 manual, the pins are connected to the microcontroller, and the +/- 12 V excursions of the RS-232 levels will damage the microcontroller I/O pins. > > There are two voltages you need from the Icom, the band Voltage, and the reference voltage. The band voltage output from some Icom radios have been shown to drift during transmit, so much that they may show a completely different band. For this reason the band reference voltage (+8V) needs to be used. It is this voltage that drifts, and thus the Band voltage follows. > > With that in mind, the W9 - W22 jumper settings are important and will connect/disconnec the various pins to the DE9 connectors from the microcontroller. > > 73! > Jack, W6FB > > >> On Apr 21, 2020, at 3:11 PM, Rich wrote: >> >> Does anyone have any experience using the KRC2 with an Icom radio? This is a working KRC2 that was on a K3 at one time. >> >> To start I cannot get the KRC2 to connect to my PC. I have used straight through cable, Null modem Cable and a USB to Serial Cable. I have run the program on an old XP laptop and my Win10 machine. I have even used a "real" comport. None of those configurations will connect to the device. The DL switch is set properly. >> >> The KRC2 passes all of the manual button press tests. >> >> I have the jumpers set for ICOM on KRC2 board. The ICOM is sending the band voltage to the unit as measured with a Volt meter. >> >> Do you really need the computer to make it work? I am thinking that is mainly for firmware and antenna relay settings >> >> I am just trying to control a 419B bandpass filter. >> >> Any thoughts? >> >> Rich >> >> K3RWN >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 Tue Apr 21 19:19:58 2020 From: rwnewbould at comcast.net (Rich) Date: Tue, 21 Apr 2020 19:19:58 -0400 Subject: [Elecraft] KRC2 setup for Icom In-Reply-To: References: <877f4145-dcb5-0299-cb41-d296243ca328@comcast.net> Message-ID: I have tried 4800,9600,19200 jumper settings and set the software appropriately.?? None work. I would think I do not need to do anything FW wise as this unit has 1.6 from way back when Rich On 4/21/2020 19:11 PM, Don Wilhelm wrote: > Rich, > > What baud rate are you trying to use?? The KRC2 is limited to 19.2k. > Double check the jumpers for the RS232 port. > Follow the instructions in the manual to download the firmware. > You only need to connect the KRC2 to the computer for firmware, but > you can connect the serial port on the ICOM through the KRC2 (but the > speed needs to be limited to 19.2k. > > I see Jack Brindle sent a response - he is the designer and therefore > the expert. > > 73, > Don W3FPR > > On 4/21/2020 6:11 PM, Rich wrote: >> Does anyone have any experience using the KRC2 with an Icom radio?? >> This is a working KRC2 that was on a K3 at one time. >> >> To start I cannot get the KRC2 to connect to my PC.? I have used >> straight through cable, Null modem Cable and a USB to Serial Cable.? >> I have run the program on an old XP laptop and my Win10 machine.?? I >> have even used a "real" comport.? None of those configurations will >> connect to the device.?? The DL switch is set properly. >> >> The KRC2 passes all of the manual button press tests. >> >> I have the jumpers set for ICOM on KRC2 board.? The ICOM is sending >> the band voltage to the unit as measured with a Volt meter. >> From dave at nk7z.net Tue Apr 21 19:53:06 2020 From: dave at nk7z.net (Dave Cole) Date: Tue, 21 Apr 2020 16:53:06 -0700 Subject: [Elecraft] Latest on the new home for my K3... Message-ID: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> https://www.nk7z.net/rf-patch-panel/ I am undertaking a full rebuild of my operating position, note the Patch Panel does not say K3 on it... That means I can replace things with a K4 later... :) -- 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources From jackbrindle at me.com Tue Apr 21 20:35:47 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 21 Apr 2020 17:35:47 -0700 Subject: [Elecraft] KRC2 setup for Icom In-Reply-To: <0926d236-d358-8135-50db-c254e27aba27@comcast.net> References: <877f4145-dcb5-0299-cb41-d296243ca328@comcast.net> <0394F72D-17D6-4EDB-BC9B-B3CD2133DBC6@me.com> <0926d236-d358-8135-50db-c254e27aba27@comcast.net> Message-ID: <553D590A-3B32-4534-B4FE-64DA8D212114@me.com> Let me explain a bit more. The KRC2 followed the same thinking as the K2 - we put non-RS232 signals on the DE9 pins. That means that only pins 2 and 3 should see those signals, but not the others. I remember there being a warning in the manual about this, but I don?t find it at this point. We will have to do something about that. We have kicked ourselves many times for using this connector arrangement. As they say, that is water under the bridge. Unfortunately jumpers W11, W12, W19 and W20 do connect DE9 pins 4 and 9 to the micro, through 10K dividers, meaning that if RS-232 signals are connected, they will only be at half voltage. Thus the microcontroller is at risk. But, lets see if it is actually damaged by setting things up properly. The description on page 24 of the KRC2 manual sets up both connectors for use with Icom band voltages. I would suggest using only one of the DE9s for the Icom signals, and leaving the other set up for computer use. Using the XCVR port for the Icom data, remove W11 and W12 and leave W19 and W20 jumpered. You will then want to have jumpers W9 and W10 inserted to allow the computer to talk to the KRC2 using the PC port. Make absolutely sure you only use a three pin cable for this one (this is more of a warning to others following this thread). If you used the opposite connector for the Icom voltage, the jumper settings become: Icom voltages connected to PC port: Remove WW9, W10, W19, W20, Insert W11, W12 (for Icom data) and W21 and W23 for computer data on the XCVR port. There have not been any updates to the KRC2 firmware since V1.6, so you have the latest. If you would like to use the KRC2 Utility to change the band maps, you will most likely want to have jumpers W7 and W8 removed to use 4800 bps communications. I don?t remember if the utility allows any other data rate, but that is currently the best one to use to communicate with the KRC2 with the utility. You should have the connections correct, with Icom Band Voltage on pin 9 and Reference voltage on pin 4. Let me know how this works for you. 73, Jack, W6FB > On Apr 21, 2020, at 4:17 PM, Rich wrote: > > Installed Jumpers > > W1,2,3 W11,12, 19,20 > > DB9 from Icom Radio Pin 4= 8v ref, Pin9= Icom Band Voltage Pin1=GND > > Do you mean a straight through cable from PC to KRC2? I am sure I did not break anything. I only had Pin 2 and 3 set for straight and null. Those pins should certainly not have 12v on them. I hope > > Rich > > On 4/21/2020 18:58 PM, Jack Brindle wrote: >> Rich; >> >> What are the jumper settings in the KRC2? >> >> It is _very_ important not to use a straight-through cable with the KRC2. As documented in the KRC2 manual, the pins are connected to the microcontroller, and the +/- 12 V excursions of the RS-232 levels will damage the microcontroller I/O pins. >> >> There are two voltages you need from the Icom, the band Voltage, and the reference voltage. The band voltage output from some Icom radios have been shown to drift during transmit, so much that they may show a completely different band. For this reason the band reference voltage (+8V) needs to be used. It is this voltage that drifts, and thus the Band voltage follows. >> >> With that in mind, the W9 - W22 jumper settings are important and will connect/disconnec the various pins to the DE9 connectors from the microcontroller. >> >> 73! >> Jack, W6FB >> >> >>> On Apr 21, 2020, at 3:11 PM, Rich wrote: >>> >>> Does anyone have any experience using the KRC2 with an Icom radio? This is a working KRC2 that was on a K3 at one time. >>> >>> To start I cannot get the KRC2 to connect to my PC. I have used straight through cable, Null modem Cable and a USB to Serial Cable. I have run the program on an old XP laptop and my Win10 machine. I have even used a "real" comport. None of those configurations will connect to the device. The DL switch is set properly. >>> >>> The KRC2 passes all of the manual button press tests. >>> >>> I have the jumpers set for ICOM on KRC2 board. The ICOM is sending the band voltage to the unit as measured with a Volt meter. >>> >>> Do you really need the computer to make it work? I am thinking that is mainly for firmware and antenna relay settings >>> >>> I am just trying to control a 419B bandpass filter. >>> >>> Any thoughts? >>> >>> Rich >>> >>> K3RWN >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 hbjr at optilink.us Tue Apr 21 20:35:41 2020 From: hbjr at optilink.us (hbjr at optilink.us) Date: Tue, 21 Apr 2020 20:35:41 -0400 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> Message-ID: <003401d6183d$f3ea0440$dbbe0cc0$@optilink.us> Nice work!! Hank K4HYJ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Dave Cole Sent: Tuesday, April 21, 2020 7:53 PM To: elecraft at mailman.qth.net Subject: [Elecraft] Latest on the new home for my K3... https://www.nk7z.net/rf-patch-panel/ I am undertaking a full rebuild of my operating position, note the Patch Panel does not say K3 on it... That means I can replace things with a K4 later... :) -- 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 hbjr at optilink.us From marklgoldberg at gmail.com Tue Apr 21 21:20:44 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Tue, 21 Apr 2020 18:20:44 -0700 Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> Message-ID: On Tue, Apr 21, 2020 at 12:29 PM David Gilbert wrote: > > Well, not all 10:1 conditions are equal (low impedances tend to give > higher tuner voltages and power loss than higher impedances), Dave's comment is very significant. Matching capability, loss and the power level a tuner can handle will vary with the specific impedance of the antenna and the construction of the tuner in question. You can't generalize by SWR alone. So the answer, really is "it depends". I have a switchable 4:1 or 1:1 balun and that helps get the impedance the tuner sees into a better range for a specific frequency. I've got a horizontal loop, not resonant on any band and the switchable balun is one more tool in the toolbox. Unfortunately, tuner manufacturers don't publish the capacitance and inductance ranges or voltage and current capability of the parts they use. You can open it up and read the values off the parts and then software like TLW or Elsie will allow you to know if it can tune a specific impedance. If not, you can add components. My loop is a little short for 160, so I have an external shunt inductor to help the tuner. It will tune, but everything gets hot, so it is pretty lossy. 73, Mark W7MLG From KY5G at montac.com Tue Apr 21 22:07:35 2020 From: KY5G at montac.com (Clay Autery) Date: Tue, 21 Apr 2020 21:07:35 -0500 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> Message-ID: <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> That is some really first rate work.... ? I dig it when folks are fastidious about their cable routing and otherwise organize things logically.... and NEATLY!! 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 04/21/20 18:53, Dave Cole wrote: > https://www.nk7z.net/rf-patch-panel/ > > I am undertaking a full rebuild of my operating position, note the > Patch Panel does not say K3 on it...? That means I can replace things > with a K4 later...? :) > > From dave at nk7z.net Tue Apr 21 22:49:33 2020 From: dave at nk7z.net (Dave Cole) Date: Tue, 21 Apr 2020 19:49:33 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> Message-ID: <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> Thanks Clay... I decided to add the patch panel because I am sick of haveing to rewire everything I want to change an antenna! That and it feeds my OCD issues. :) 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/21/20 7:07 PM, Clay Autery wrote: > That is some really first rate work.... ? I dig it when folks > are fastidious about their cable routing and otherwise organize things > logically.... and NEATLY!! > > 73, > > ______________________ > Clay Autery, KY5G > (318) 518-1389 > > On 04/21/20 18:53, Dave Cole wrote: >> https://www.nk7z.net/rf-patch-panel/ >> >> I am undertaking a full rebuild of my operating position, note the >> Patch Panel does not say K3 on it...? That means I can replace things >> with a K4 later...? :) >> >> > _._,_._,_ > ------------------------------------------------------------------------ > Groups.io Links: > > You receive all messages sent to this group. > > View/Reply Online (#32441) > | Reply To Group > > | Reply To Sender > > | Mute This Topic | New Topic > > > Your Subscription | > Contact Group Owner | Unsubscribe > > [dave at nk7z.net] > > _._,_._,_ From KY5G at montac.com Tue Apr 21 23:03:13 2020 From: KY5G at montac.com (Clay Autery) Date: Tue, 21 Apr 2020 22:03:13 -0500 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> Message-ID: <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> I ABSOLUTELY understand, and identify! Could you clue us in on how you sourced/built that panel?? I'd love to have access to something like that! 73 ______________________ Clay Autery, KY5G (318) 518-1389 On 04/21/20 21:49, Dave Cole wrote: > Thanks Clay...? I decided to add the patch panel because I am sick of > haveing to rewire everything I want to change an antenna!? That and it > feeds my OCD issues. :) > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/21/20 7:07 PM, Clay Autery wrote: >> That is some really first rate work.... ? I dig it when >> folks are fastidious about their cable routing and otherwise organize >> things logically.... and NEATLY!! >> >> 73, >> >> ______________________ >> Clay Autery, KY5G >> (318) 518-1389 >> >> On 04/21/20 18:53, Dave Cole wrote: >>> https://www.nk7z.net/rf-patch-panel/ >>> >>> I am undertaking a full rebuild of my operating position, note the >>> Patch Panel does not say K3 on it...? That means I can replace >>> things with a K4 later...? :) >>> >>> >> > > -=-=-=-=-=-=-=-=-=-=-=- > Groups.io Links: You receive all messages sent to this group. > > View/Reply Online (#32442): https://groups.io/g/Elecraft-K3/message/32442 > Mute This Topic: https://groups.io/mt/73185824/1171784 > Group Owner: Elecraft-K3+owner at groups.io > Unsubscribe: > https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy > [KY5G at montac.com] > -=-=-=-=-=-=-=-=-=-=-=- > From dave at nk7z.net Tue Apr 21 23:48:56 2020 From: dave at nk7z.net (Dave Cole) Date: Tue, 21 Apr 2020 20:48:56 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> Message-ID: <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> Hi Clay, I used the folks called Front Panel Express at: https://www.frontpanelexpress.com/ Took a few hours to learn the free software they provide, but overall it was easy. Not cheap, but very good results... They even have a version that runs under Linux... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/21/20 8:03 PM, Clay Autery wrote: > I ABSOLUTELY understand, and identify! > > Could you clue us in on how you sourced/built that panel?? I'd love to > have access to something like that! > > 73 > > ______________________ > Clay Autery, KY5G > (318) 518-1389 > > On 04/21/20 21:49, Dave Cole wrote: >> Thanks Clay...? I decided to add the patch panel because I am sick of >> haveing to rewire everything I want to change an antenna!? That and it >> feeds my OCD issues. :) >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 4/21/20 7:07 PM, Clay Autery wrote: >>> That is some really first rate work.... ? I dig it when >>> folks are fastidious about their cable routing and otherwise organize >>> things logically.... and NEATLY!! >>> >>> 73, >>> >>> ______________________ >>> Clay Autery, KY5G >>> (318) 518-1389 >>> >>> On 04/21/20 18:53, Dave Cole wrote: >>>> https://www.nk7z.net/rf-patch-panel/ >>>> >>>> I am undertaking a full rebuild of my operating position, note the >>>> Patch Panel does not say K3 on it...? That means I can replace >>>> things with a K4 later...? :) >>>> >>>> >>> >> >> -=-=-=-=-=-=-=-=-=-=-=- >> Groups.io Links: You receive all messages sent to this group. >> >> View/Reply Online (#32442): https://groups.io/g/Elecraft-K3/message/32442 >> Mute This Topic: https://groups.io/mt/73185824/1171784 >> Group Owner: Elecraft-K3+owner at groups.io >> Unsubscribe: >> https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy >> [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 dave at nk7z.net From M0XDF at Alphadene.co.uk Wed Apr 22 09:39:46 2020 From: M0XDF at Alphadene.co.uk (David Ferrington, M0XDF) Date: Wed, 22 Apr 2020 14:39:46 +0100 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> Message-ID: Yes, I?d like to know to and the source of the cable trays. It?s very neat and professional. Mind you, it seems to me, that lots of cool stuff is not available from UK suppliers :-( 73 de David, M0XDF This story concerns four people ? Everybody, Somebody, Anybody and Nobody. There was an important job to be done and Everybody was sure that Somebody would do it. Anybody could have done it but in the end Nobody did it. Everybody got very angry over this because it really was Somebody?s job. Everybody thought Somebody would do it, but Nobody realised that Anybody wouldn?t do it It ended up that Everybody blamed Somebody when actually Nobody had asked Anybody. > On 22 Apr 2020, at 04:03, Clay Autery wrote: > > I ABSOLUTELY understand, and identify! > > Could you clue us in on how you sourced/built that panel? I'd love to have access to something like that! > > 73 > > ______________________ > Clay Autery, KY5G > (318) 518-1389 > > On 04/21/20 21:49, Dave Cole wrote: >> Thanks Clay... I decided to add the patch panel because I am sick of haveing to rewire everything I want to change an antenna! That and it feeds my OCD issues. :) >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 4/21/20 7:07 PM, Clay Autery wrote: >>> That is some really first rate work.... I dig it when folks are fastidious about their cable routing and otherwise organize things logically.... and NEATLY!! >>> >>> 73, >>> >>> ______________________ >>> Clay Autery, KY5G >>> (318) 518-1389 >>> >>> On 04/21/20 18:53, Dave Cole wrote: >>>> https://www.nk7z.net/rf-patch-panel/ >>>> >>>> I am undertaking a full rebuild of my operating position, note the Patch Panel does not say K3 on it... That means I can replace things with a K4 later... :) >>>> >>>> >>> >> >> -=-=-=-=-=-=-=-=-=-=-=- >> Groups.io Links: You receive all messages sent to this group. >> >> View/Reply Online (#32442): https://groups.io/g/Elecraft-K3/message/32442 >> Mute This Topic: https://groups.io/mt/73185824/1171784 >> Group Owner: Elecraft-K3+owner at groups.io >> Unsubscribe: https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy [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 m0xdf at alphadene.co.uk From dhaines at bates.edu Wed Apr 22 11:28:32 2020 From: dhaines at bates.edu (David Haines) Date: Wed, 22 Apr 2020 11:28:32 -0400 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> Message-ID: <0c028238-7232-384c-17ac-865ab3b9dd59@bates.edu> My son is a robotics engineer and designer, so I knew he would be interested in the panel, which in my opinion is a work of art. He did make the following helpful comment, though: "Looks like it will be pretty nice! I want to know why he's zip tying everything inside the Panduit though. I've always used it to specifically avoid zip ties and still have a clean result. Gonna be annoying when he wants to change something!" david KC1DNY Maine On 4/21/2020 11:03 PM, Clay Autery wrote: > I ABSOLUTELY understand, and identify! > > Could you clue us in on how you sourced/built that panel?? I'd love to > have access to something like that! > > 73 > > ______________________ > Clay Autery, KY5G > (318) 518-1389 > > On 04/21/20 21:49, Dave Cole wrote: >> Thanks Clay...? I decided to add the patch panel because I am sick of >> haveing to rewire everything I want to change an antenna!? That and >> it feeds my OCD issues. :) >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 4/21/20 7:07 PM, Clay Autery wrote: >>> That is some really first rate work.... ? I dig it when >>> folks are fastidious about their cable routing and otherwise >>> organize things logically.... and NEATLY!! >>> >>> 73, >>> >>> ______________________ >>> Clay Autery, KY5G >>> (318) 518-1389 >>> >>> On 04/21/20 18:53, Dave Cole wrote: >>>> https://www.nk7z.net/rf-patch-panel/ >>>> >>>> I am undertaking a full rebuild of my operating position, note the >>>> Patch Panel does not say K3 on it...? That means I can replace >>>> things with a K4 later...? :) >>>> >>>> >>> >> >> -=-=-=-=-=-=-=-=-=-=-=- >> Groups.io Links: You receive all messages sent to this group. >> >> View/Reply Online (#32442): >> https://groups.io/g/Elecraft-K3/message/32442 >> Mute This Topic: https://groups.io/mt/73185824/1171784 >> Group Owner: Elecraft-K3+owner at groups.io >> Unsubscribe: >> https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy >> [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 dhaines at bates.edu From dave at nk7z.net Wed Apr 22 11:51:22 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 22 Apr 2020 08:51:22 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> Message-ID: Hi, I did a quick and dirty review of the software used to design the Patch Panel, at: www.nk7z.net top review... The tray is Panduit, see: http://www.panduit.com/heiler/SelectionGuides/D-WDSG01--SA-UKE-WiringDuctProduct-W.pdf I used the F type of Panduit. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/22/20 6:39 AM, David Ferrington, M0XDF wrote: > Yes, I?d like to know to and the source of the cable trays. > It?s very neat and professional. > > Mind you, it seems to me, that lots of cool stuff is not available from UK suppliers :-( > > 73 de David, M0XDF > > This story concerns four people ? Everybody, Somebody, Anybody and Nobody. > There was an important job to be done and Everybody was sure that Somebody would do it. > Anybody could have done it but in the end Nobody did it. > Everybody got very angry over this because it really was Somebody?s job. > Everybody thought Somebody would do it, but Nobody realised that Anybody wouldn?t do it > It ended up that Everybody blamed Somebody when actually Nobody had asked Anybody. > >> On 22 Apr 2020, at 04:03, Clay Autery wrote: >> >> I ABSOLUTELY understand, and identify! >> >> Could you clue us in on how you sourced/built that panel? I'd love to have access to something like that! >> >> 73 >> >> ______________________ >> Clay Autery, KY5G >> (318) 518-1389 >> >> On 04/21/20 21:49, Dave Cole wrote: >>> Thanks Clay... I decided to add the patch panel because I am sick of haveing to rewire everything I want to change an antenna! That and it feeds my OCD issues. :) >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>> On 4/21/20 7:07 PM, Clay Autery wrote: >>>> That is some really first rate work.... I dig it when folks are fastidious about their cable routing and otherwise organize things logically.... and NEATLY!! >>>> >>>> 73, >>>> >>>> ______________________ >>>> Clay Autery, KY5G >>>> (318) 518-1389 >>>> >>>> On 04/21/20 18:53, Dave Cole wrote: >>>>> https://www.nk7z.net/rf-patch-panel/ >>>>> >>>>> I am undertaking a full rebuild of my operating position, note the Patch Panel does not say K3 on it... That means I can replace things with a K4 later... :) >>>>> >>>>> >>>> >>> >>> -=-=-=-=-=-=-=-=-=-=-=- >>> Groups.io Links: You receive all messages sent to this group. >>> >>> View/Reply Online (#32442): https://groups.io/g/Elecraft-K3/message/32442 >>> Mute This Topic: https://groups.io/mt/73185824/1171784 >>> Group Owner: Elecraft-K3+owner at groups.io >>> Unsubscribe: https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy [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 m0xdf at alphadene.co.uk > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Apr 22 11:58:56 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 22 Apr 2020 08:58:56 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <0c028238-7232-384c-17ac-865ab3b9dd59@bates.edu> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <0c028238-7232-384c-17ac-865ab3b9dd59@bates.edu> Message-ID: Most of the zip ties inside the Panduit were clipped out last night... I used them only to hold/form cables together as I run them in the Panduit. I will leave the wire ties at the entry and exit points to the Panduit to assist in keeping things tidy as they enter, or exit the Panduit. But... Given it is a patch panel, and the cables to it are specifically designed for the radio I use, (K3), changing configurations won't be a huge issue. That is the reason for the patch panel in the first place, avoid rewiring for every change. If I want to move antenna, or if I want to feed the output of the radio IF to an SDR, I just add a patch, if I want to bypass the tuner, I just patch around it... You get the idea... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/22/20 8:28 AM, David Haines wrote: > My son is a robotics engineer and designer, so I knew he would be > interested in the panel, which in my opinion is a work of art. > > He did make the following helpful comment, though: > > "Looks like it will be pretty nice! I want to know why he's zip tying > everything inside the Panduit though. I've always used it to > specifically avoid zip ties and still have a clean result. Gonna be > annoying when he wants to change something!" > > david > > KC1DNY > Maine > > On 4/21/2020 11:03 PM, Clay Autery wrote: >> I ABSOLUTELY understand, and identify! >> >> Could you clue us in on how you sourced/built that panel?? I'd love to >> have access to something like that! >> >> 73 >> >> ______________________ >> Clay Autery, KY5G >> (318) 518-1389 >> >> On 04/21/20 21:49, Dave Cole wrote: >>> Thanks Clay...? I decided to add the patch panel because I am sick of >>> haveing to rewire everything I want to change an antenna!? That and >>> it feeds my OCD issues. :) >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>> On 4/21/20 7:07 PM, Clay Autery wrote: >>>> That is some really first rate work.... ? I dig it when >>>> folks are fastidious about their cable routing and otherwise >>>> organize things logically.... and NEATLY!! >>>> >>>> 73, >>>> >>>> ______________________ >>>> Clay Autery, KY5G >>>> (318) 518-1389 >>>> >>>> On 04/21/20 18:53, Dave Cole wrote: >>>>> https://www.nk7z.net/rf-patch-panel/ >>>>> >>>>> I am undertaking a full rebuild of my operating position, note the >>>>> Patch Panel does not say K3 on it...? That means I can replace >>>>> things with a K4 later...? :) >>>>> >>>>> >>>> >>> >>> -=-=-=-=-=-=-=-=-=-=-=- >>> Groups.io Links: You receive all messages sent to this group. >>> >>> View/Reply Online (#32442): >>> https://groups.io/g/Elecraft-K3/message/32442 >>> Mute This Topic: https://groups.io/mt/73185824/1171784 >>> Group Owner: Elecraft-K3+owner at groups.io >>> Unsubscribe: >>> https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy >>> [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 dhaines at bates.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 nk7z.net From dave at nk7z.net Wed Apr 22 12:10:16 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 22 Apr 2020 09:10:16 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <0c028238-7232-384c-17ac-865ab3b9dd59@bates.edu> Message-ID: <76b3ad81-4a6b-1709-2e6a-7c9dd97db942@nk7z.net> I added a few more photos to the RF Patch Panel/Desk rebuild, these show the Zip ties removed. Last few photos... https://www.nk7z.net/rf-patch-panel/ 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/22/20 8:58 AM, Dave Cole wrote: > Most of the zip ties inside the Panduit were clipped out last night... I > used them only to hold/form cables together as I run them in the Panduit. > > I will leave the wire ties at the entry and exit points to the Panduit > to assist in keeping things tidy as they enter, or exit the Panduit. > > But... Given it is a patch panel, and the cables to it are specifically > designed for the radio I use, (K3), changing configurations won't be a > huge issue. > > That is the reason for the patch panel in the first place, avoid > rewiring for every change. > > If I want to move antenna, or if I want to feed the output of the radio > IF to an SDR, I just add a patch, if I want to bypass the tuner, I just > patch around it...? You get the idea... > > > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/22/20 8:28 AM, David Haines wrote: >> My son is a robotics engineer and designer, so I knew he would be >> interested in the panel, which in my opinion is a work of art. >> >> He did make the following helpful comment, though: >> >> "Looks like it will be pretty nice! I want to know why he's zip tying >> everything inside the Panduit though. I've always used it to >> specifically avoid zip ties and still have a clean result. Gonna be >> annoying when he wants to change something!" >> >> david >> >> KC1DNY >> Maine >> >> On 4/21/2020 11:03 PM, Clay Autery wrote: >>> I ABSOLUTELY understand, and identify! >>> >>> Could you clue us in on how you sourced/built that panel?? I'd love >>> to have access to something like that! >>> >>> 73 >>> >>> ______________________ >>> Clay Autery, KY5G >>> (318) 518-1389 >>> >>> On 04/21/20 21:49, Dave Cole wrote: >>>> Thanks Clay...? I decided to add the patch panel because I am sick >>>> of haveing to rewire everything I want to change an antenna!? That >>>> and it feeds my OCD issues. :) >>>> >>>> 73, and thanks, >>>> Dave (NK7Z) >>>> https://www.nk7z.net >>>> ARRL Volunteer Examiner >>>> ARRL Technical Specialist >>>> ARRL Asst. Director, NW Division, Technical Resources >>>> >>>> On 4/21/20 7:07 PM, Clay Autery wrote: >>>>> That is some really first rate work.... ? I dig it when >>>>> folks are fastidious about their cable routing and otherwise >>>>> organize things logically.... and NEATLY!! >>>>> >>>>> 73, >>>>> >>>>> ______________________ >>>>> Clay Autery, KY5G >>>>> (318) 518-1389 >>>>> >>>>> On 04/21/20 18:53, Dave Cole wrote: >>>>>> https://www.nk7z.net/rf-patch-panel/ >>>>>> >>>>>> I am undertaking a full rebuild of my operating position, note the >>>>>> Patch Panel does not say K3 on it...? That means I can replace >>>>>> things with a K4 later...? :) >>>>>> >>>>>> >>>>> >>>> >>>> -=-=-=-=-=-=-=-=-=-=-=- >>>> Groups.io Links: You receive all messages sent to this group. >>>> >>>> View/Reply Online (#32442): >>>> https://groups.io/g/Elecraft-K3/message/32442 >>>> Mute This Topic: https://groups.io/mt/73185824/1171784 >>>> Group Owner: Elecraft-K3+owner at groups.io >>>> Unsubscribe: >>>> https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy >>>> [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 dhaines at bates.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 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 dave at nk7z.net From dhaines at bates.edu Wed Apr 22 13:17:28 2020 From: dhaines at bates.edu (David Haines) Date: Wed, 22 Apr 2020 13:17:28 -0400 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> Message-ID: More advice from my robotics engineer son, who uses Panduit all over his robots! "The most important secret of Panduit: Put a rubber band across the top between the tabs every couple of feet to keep things inside while filling it up. Easy to hook/unhook while getting everything in place." david KC1DNY KX3 right now, but ... .? Good thing the K4 isn't shipping yet! On 4/21/2020 11:48 PM, Dave Cole wrote: > Hi Clay, > > I used the folks called Front Panel Express at: > > https://www.frontpanelexpress.com/ > > Took a few hours to learn the free software they provide, but overall > it was easy.? Not cheap, but very good results... > > They even have a version that runs under Linux... > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/21/20 8:03 PM, Clay Autery wrote: >> I ABSOLUTELY understand, and identify! >> >> Could you clue us in on how you sourced/built that panel?? I'd love >> to have access to something like that! >> >> 73 >> >> ______________________ >> Clay Autery, KY5G >> (318) 518-1389 >> >> On 04/21/20 21:49, Dave Cole wrote: >>> Thanks Clay...? I decided to add the patch panel because I am sick >>> of haveing to rewire everything I want to change an antenna!? That >>> and it feeds my OCD issues. :) >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>> On 4/21/20 7:07 PM, Clay Autery wrote: >>>> That is some really first rate work.... ? I dig it when >>>> folks are fastidious about their cable routing and otherwise >>>> organize things logically.... and NEATLY!! >>>> >>>> 73, >>>> >>>> ______________________ >>>> Clay Autery, KY5G >>>> (318) 518-1389 >>>> >>>> On 04/21/20 18:53, Dave Cole wrote: >>>>> https://www.nk7z.net/rf-patch-panel/ >>>>> >>>>> I am undertaking a full rebuild of my operating position, note the >>>>> Patch Panel does not say K3 on it...? That means I can replace >>>>> things with a K4 later...? :) >>>>> >>>>> >>>> >>> >>> -=-=-=-=-=-=-=-=-=-=-=- >>> Groups.io Links: You receive all messages sent to this group. >>> >>> View/Reply Online (#32442): >>> https://groups.io/g/Elecraft-K3/message/32442 >>> Mute This Topic: https://groups.io/mt/73185824/1171784 >>> Group Owner: Elecraft-K3+owner at groups.io >>> Unsubscribe: >>> https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy >>> [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 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 dhaines at bates.edu From dave at nk7z.net Wed Apr 22 13:22:46 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 22 Apr 2020 10:22:46 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> Message-ID: Please thank him for that tip!!! I will be using that from now on!!! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/22/20 10:17 AM, David Haines wrote: > More advice from my robotics engineer son, who uses Panduit all over his > robots! > > "The most important secret of Panduit: Put a rubber band across the top > between the tabs every couple of feet to keep things inside while > filling it up. Easy to hook/unhook while getting everything in place." > > david > KC1DNY > KX3 right now, but ... .? Good thing the K4 isn't shipping yet! > > On 4/21/2020 11:48 PM, Dave Cole wrote: >> Hi Clay, >> >> I used the folks called Front Panel Express at: >> >> https://www.frontpanelexpress.com/ >> >> Took a few hours to learn the free software they provide, but overall >> it was easy.? Not cheap, but very good results... >> >> They even have a version that runs under Linux... >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 4/21/20 8:03 PM, Clay Autery wrote: >>> I ABSOLUTELY understand, and identify! >>> >>> Could you clue us in on how you sourced/built that panel?? I'd love >>> to have access to something like that! >>> >>> 73 >>> >>> ______________________ >>> Clay Autery, KY5G >>> (318) 518-1389 >>> >>> On 04/21/20 21:49, Dave Cole wrote: >>>> Thanks Clay...? I decided to add the patch panel because I am sick >>>> of haveing to rewire everything I want to change an antenna!? That >>>> and it feeds my OCD issues. :) >>>> >>>> 73, and thanks, >>>> Dave (NK7Z) >>>> https://www.nk7z.net >>>> ARRL Volunteer Examiner >>>> ARRL Technical Specialist >>>> ARRL Asst. Director, NW Division, Technical Resources >>>> >>>> On 4/21/20 7:07 PM, Clay Autery wrote: >>>>> That is some really first rate work.... ? I dig it when >>>>> folks are fastidious about their cable routing and otherwise >>>>> organize things logically.... and NEATLY!! >>>>> >>>>> 73, >>>>> >>>>> ______________________ >>>>> Clay Autery, KY5G >>>>> (318) 518-1389 >>>>> >>>>> On 04/21/20 18:53, Dave Cole wrote: >>>>>> https://www.nk7z.net/rf-patch-panel/ >>>>>> >>>>>> I am undertaking a full rebuild of my operating position, note the >>>>>> Patch Panel does not say K3 on it...? That means I can replace >>>>>> things with a K4 later...? :) >>>>>> >>>>>> >>>>> >>>> >>>> -=-=-=-=-=-=-=-=-=-=-=- >>>> Groups.io Links: You receive all messages sent to this group. >>>> >>>> View/Reply Online (#32442): >>>> https://groups.io/g/Elecraft-K3/message/32442 >>>> Mute This Topic: https://groups.io/mt/73185824/1171784 >>>> Group Owner: Elecraft-K3+owner at groups.io >>>> Unsubscribe: >>>> https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy >>>> [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 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 dhaines at bates.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 nk7z.net From M0XDF at Alphadene.co.uk Wed Apr 22 13:33:08 2020 From: M0XDF at Alphadene.co.uk (David Ferrington, M0XDF) Date: Wed, 22 Apr 2020 18:33:08 +0100 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> Message-ID: <10C3A596-3D74-42BF-BB7B-460F3F75007F@Alphadene.co.uk> Thank you all for you responses. 73 de David, M0XDF > On 22 Apr 2020, at 16:51, Dave Cole wrote: > > Hi, > I did a quick and dirty review of the software used to design the Patch Panel, at: > > www.nk7z.net > > top review... > > The tray is Panduit, see: > > http://www.panduit.com/heiler/SelectionGuides/D-WDSG01--SA-UKE-WiringDuctProduct-W.pdf > > I used the F type of Panduit. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/22/20 6:39 AM, David Ferrington, M0XDF wrote: >> Yes, I?d like to know to and the source of the cable trays. >> It?s very neat and professional. >> Mind you, it seems to me, that lots of cool stuff is not available from UK suppliers :-( >> 73 de David, M0XDF >> This story concerns four people ? Everybody, Somebody, Anybody and Nobody. >> There was an important job to be done and Everybody was sure that Somebody would do it. >> Anybody could have done it but in the end Nobody did it. >> Everybody got very angry over this because it really was Somebody?s job. >> Everybody thought Somebody would do it, but Nobody realised that Anybody wouldn?t do it >> It ended up that Everybody blamed Somebody when actually Nobody had asked Anybody. >>> On 22 Apr 2020, at 04:03, Clay Autery wrote: >>> >>> I ABSOLUTELY understand, and identify! >>> >>> Could you clue us in on how you sourced/built that panel? I'd love to have access to something like that! >>> >>> 73 >>> >>> ______________________ >>> Clay Autery, KY5G >>> (318) 518-1389 >>> >>> On 04/21/20 21:49, Dave Cole wrote: >>>> Thanks Clay... I decided to add the patch panel because I am sick of haveing to rewire everything I want to change an antenna! That and it feeds my OCD issues. :) >>>> >>>> 73, and thanks, >>>> Dave (NK7Z) >>>> https://www.nk7z.net >>>> ARRL Volunteer Examiner >>>> ARRL Technical Specialist >>>> ARRL Asst. Director, NW Division, Technical Resources >>>> >>>> On 4/21/20 7:07 PM, Clay Autery wrote: >>>>> That is some really first rate work.... I dig it when folks are fastidious about their cable routing and otherwise organize things logically.... and NEATLY!! >>>>> >>>>> 73, >>>>> >>>>> ______________________ >>>>> Clay Autery, KY5G >>>>> (318) 518-1389 >>>>> >>>>> On 04/21/20 18:53, Dave Cole wrote: >>>>>> https://www.nk7z.net/rf-patch-panel/ >>>>>> >>>>>> I am undertaking a full rebuild of my operating position, note the Patch Panel does not say K3 on it... That means I can replace things with a K4 later... :) >>>>>> >>>>>> >>>>> >>>> >>>> -=-=-=-=-=-=-=-=-=-=-=- >>>> Groups.io Links: You receive all messages sent to this group. >>>> >>>> View/Reply Online (#32442): https://groups.io/g/Elecraft-K3/message/32442 > >>>> Mute This Topic: https://groups.io/mt/73185824/1171784 > >>>> Group Owner: Elecraft-K3+owner at groups.io > >>>> Unsubscribe: https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy > [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 m0xdf at alphadene.co.uk >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 m0xdf at alphadene.co.uk From jackbrindle at me.com Wed Apr 22 13:57:11 2020 From: jackbrindle at me.com (Jack Brindle) Date: Wed, 22 Apr 2020 10:57:11 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> Message-ID: Dave; Perhaps this has been asked, but what are you doing for equipment bonding? 73! Jack, W6FB > On Apr 22, 2020, at 10:22 AM, Dave Cole wrote: > > Please thank him for that tip!!! I will be using that from now on!!! > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/22/20 10:17 AM, David Haines wrote: >> More advice from my robotics engineer son, who uses Panduit all over his robots! >> "The most important secret of Panduit: Put a rubber band across the top between the tabs every couple of feet to keep things inside while filling it up. Easy to hook/unhook while getting everything in place." >> david >> KC1DNY >> KX3 right now, but ... . Good thing the K4 isn't shipping yet! >> On 4/21/2020 11:48 PM, Dave Cole wrote: >>> Hi Clay, >>> >>> I used the folks called Front Panel Express at: >>> >>> https://www.frontpanelexpress.com/ >>> >>> Took a few hours to learn the free software they provide, but overall it was easy. Not cheap, but very good results... >>> >>> They even have a version that runs under Linux... >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>> On 4/21/20 8:03 PM, Clay Autery wrote: >>>> I ABSOLUTELY understand, and identify! >>>> >>>> Could you clue us in on how you sourced/built that panel? I'd love to have access to something like that! >>>> >>>> 73 >>>> >>>> ______________________ >>>> Clay Autery, KY5G >>>> (318) 518-1389 >>>> >>>> On 04/21/20 21:49, Dave Cole wrote: >>>>> Thanks Clay... I decided to add the patch panel because I am sick of haveing to rewire everything I want to change an antenna! That and it feeds my OCD issues. :) >>>>> >>>>> 73, and thanks, >>>>> Dave (NK7Z) >>>>> https://www.nk7z.net >>>>> ARRL Volunteer Examiner >>>>> ARRL Technical Specialist >>>>> ARRL Asst. Director, NW Division, Technical Resources >>>>> >>>>> On 4/21/20 7:07 PM, Clay Autery wrote: >>>>>> That is some really first rate work.... I dig it when folks are fastidious about their cable routing and otherwise organize things logically.... and NEATLY!! >>>>>> >>>>>> 73, >>>>>> >>>>>> ______________________ >>>>>> Clay Autery, KY5G >>>>>> (318) 518-1389 >>>>>> >>>>>> On 04/21/20 18:53, Dave Cole wrote: >>>>>>> https://www.nk7z.net/rf-patch-panel/ >>>>>>> >>>>>>> I am undertaking a full rebuild of my operating position, note the Patch Panel does not say K3 on it... That means I can replace things with a K4 later... :) >>>>>>> >>>>>>> >>>>>> >>>>> >>>>> -=-=-=-=-=-=-=-=-=-=-=- >>>>> Groups.io Links: You receive all messages sent to this group. >>>>> >>>>> View/Reply Online (#32442): https://groups.io/g/Elecraft-K3/message/32442 >>>>> Mute This Topic: https://groups.io/mt/73185824/1171784 >>>>> Group Owner: Elecraft-K3+owner at groups.io >>>>> Unsubscribe: https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy [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 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 dhaines at bates.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 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 jackbrindle at me.com From k2asp at kanafi.org Wed Apr 22 14:47:29 2020 From: k2asp at kanafi.org (Phil Kane) Date: Wed, 22 Apr 2020 11:47:29 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> Message-ID: On 4/22/2020 10:17 AM, David Haines wrote: > "The most important secret of Panduit: Put a rubber band across the top > between the tabs every couple of feet to keep things inside while > filling it up. Easy to hook/unhook while getting everything in place." The standard in the telephone industry always was to lace down the cables to the cable tray every 2 feet or so, What today's "technicians" do is an exercise for the viewer. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From kl7uw at acsalaska.net Wed Apr 22 14:53:54 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Wed, 22 Apr 2020 10:53:54 -0800 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... Message-ID: <202004221853.03MIrteW000431@mail42c28.carrierzone.com> I'm halfway thru a complete shack reorg. Cabling not so fancy but I am using peg-board with tiewraps thru the holes to dress cables. I have 17 external antenna cables and at least that many rotator and control cables going outside. Main advantage of the reorg is shortening cable length to both QRO amps and 50A PS (dropping IR loses). Photos on my website when complete. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From dave at nk7z.net Wed Apr 22 16:51:58 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 22 Apr 2020 13:51:58 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> Message-ID: <4556bb17-d2fd-5fee-c7af-00a88e64d938@nk7z.net> The finished product for grounding will be less pretty! I am using a single point type grounding system, with one of those copper bars mounted on insulators as the center. That bar is mounted on the rear of the desk vertical, (not on the hutch), just below where the hutch sits, and centered left to right behind the K3/P3/Amp/Tuner, about 6 inches below the back of the desktop. Below that will be two 12 connector power strips. All power is fed to the two power strips from a UPS, so everything save the KPA500 is on clean power. The UPS will be grounded as the radios are. The KPA500 is on the same AC circuit, but not on the UPS. A flat copper strap will run from the grounding bar directly to each rigs chassis ground point, not via Panduit, but behind the Panduit. All computers will have the chassis grounded in the same way, but I will use a #6, not copper sheeting. I am trying to reduce the potential for ground loops, so I will not be using the patch panel as a ground connection point, it will just look like long coax runs to the equipment. I will be installing an entrance panel, and an additional ground rod later this summer. The entrance panel will be connected via #6 to a set of three 8 foot ground rods, one at the electrical service, one at my shack, just outside the house, 15 feet away from the service ground, and a third, 15 feet further down the house, all connected with #6 as well. All incoming coax will be fed in via the entrance panel. The entrance panel is a NEMA4 weatherproof box, 3 by 2, with a 1/4 inch copper sheet bolted to the raised supports in the rear of the box. The copper plate inside the entrance panel is where the station outside ground system connects, and where the stations inside ground system connects via a Polyphasor on each coax cable, and a #8 copper wire. On the rear of the desk will be a CM Choke I constructed-- RG-400, on two FT-240/31 cores. At the antenna, is coax, feeding the Entrance panel. I am conflicted on grounding the base of the antenna, and possibly adding another set of Polyphasors there... More reading is needed on this... Any suggestions are welcome... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/22/20 10:57 AM, Jack Brindle wrote: > Dave; > > Perhaps this has been asked, but what are you doing for equipment bonding? > > 73! > Jack, W6FB > > >> On Apr 22, 2020, at 10:22 AM, Dave Cole wrote: >> >> Please thank him for that tip!!! I will be using that from now on!!! >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 4/22/20 10:17 AM, David Haines wrote: >>> More advice from my robotics engineer son, who uses Panduit all over his robots! >>> "The most important secret of Panduit: Put a rubber band across the top between the tabs every couple of feet to keep things inside while filling it up. Easy to hook/unhook while getting everything in place." >>> david >>> KC1DNY >>> KX3 right now, but ... . Good thing the K4 isn't shipping yet! >>> On 4/21/2020 11:48 PM, Dave Cole wrote: >>>> Hi Clay, >>>> >>>> I used the folks called Front Panel Express at: >>>> >>>> https://www.frontpanelexpress.com/ >>>> >>>> Took a few hours to learn the free software they provide, but overall it was easy. Not cheap, but very good results... >>>> >>>> They even have a version that runs under Linux... >>>> >>>> 73, and thanks, >>>> Dave (NK7Z) >>>> https://www.nk7z.net >>>> ARRL Volunteer Examiner >>>> ARRL Technical Specialist >>>> ARRL Asst. Director, NW Division, Technical Resources >>>> >>>> On 4/21/20 8:03 PM, Clay Autery wrote: >>>>> I ABSOLUTELY understand, and identify! >>>>> >>>>> Could you clue us in on how you sourced/built that panel? I'd love to have access to something like that! >>>>> >>>>> 73 >>>>> >>>>> ______________________ >>>>> Clay Autery, KY5G >>>>> (318) 518-1389 >>>>> >>>>> On 04/21/20 21:49, Dave Cole wrote: >>>>>> Thanks Clay... I decided to add the patch panel because I am sick of haveing to rewire everything I want to change an antenna! That and it feeds my OCD issues. :) >>>>>> >>>>>> 73, and thanks, >>>>>> Dave (NK7Z) >>>>>> https://www.nk7z.net >>>>>> ARRL Volunteer Examiner >>>>>> ARRL Technical Specialist >>>>>> ARRL Asst. Director, NW Division, Technical Resources >>>>>> >>>>>> On 4/21/20 7:07 PM, Clay Autery wrote: >>>>>>> That is some really first rate work.... I dig it when folks are fastidious about their cable routing and otherwise organize things logically.... and NEATLY!! >>>>>>> >>>>>>> 73, >>>>>>> >>>>>>> ______________________ >>>>>>> Clay Autery, KY5G >>>>>>> (318) 518-1389 >>>>>>> >>>>>>> On 04/21/20 18:53, Dave Cole wrote: >>>>>>>> https://www.nk7z.net/rf-patch-panel/ >>>>>>>> >>>>>>>> I am undertaking a full rebuild of my operating position, note the Patch Panel does not say K3 on it... That means I can replace things with a K4 later... :) >>>>>>>> >>>>>>>> >>>>>>> >>>>>> >>>>>> -=-=-=-=-=-=-=-=-=-=-=- >>>>>> Groups.io Links: You receive all messages sent to this group. >>>>>> >>>>>> View/Reply Online (#32442): https://groups.io/g/Elecraft-K3/message/32442 >>>>>> Mute This Topic: https://groups.io/mt/73185824/1171784 >>>>>> Group Owner: Elecraft-K3+owner at groups.io >>>>>> Unsubscribe: https://groups.io/g/Elecraft-K3/leave/4370919/558102286/xyzzy [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 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 dhaines at bates.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 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 jackbrindle at me.com > From jim at audiosystemsgroup.com Wed Apr 22 23:14:52 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 22 Apr 2020 20:14:52 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <4556bb17-d2fd-5fee-c7af-00a88e64d938@nk7z.net> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> <4556bb17-d2fd-5fee-c7af-00a88e64d938@nk7z.net> Message-ID: <19dc67c5-8de8-067b-c090-b0175f8fab03@audiosystemsgroup.com> On 4/22/2020 1:51 PM, Dave Cole wrote: > I am trying to reduce the potential for ground loops, so I will not be > using the patch panel as a ground connection point, it will just look > like long coax runs to the equipment. Ain't no such thing as a "ground loop," except to the extent that it could couple a magnetic field. In practice, that only happens when there's an error in mains power wiring, or when there's leakage flux from a big power transformer in close proximity. Indeed, with proper bonding for lightning protection and hum/buzz/RFI control, there SHOULD be loops due to multiple bonding paths. That's addressed in this slide deck for talks I've done at Visalia, Pacificon, and to multiple ham clubs, and most of it was incorporated in Ward Silver's ARRL book on the topic, on which we collaborated. http://k9yc.com/GroundingAndAudio.pdf > > I will be installing an entrance panel, and an additional ground rod > later this summer. > > The entrance panel will be connected via #6 to a set of three 8 foot > ground rods, one at the electrical service, one at my shack, just > outside the house, 15 feet away from the service ground, and a third, 15 > feet further down the house, all connected with #6 as well. > > All incoming coax will be fed in via the entrance panel.? The entrance > panel is a NEMA4 weatherproof box, 3 by 2, with a 1/4 inch copper sheet > bolted to the raised supports in the rear of the box. > > The copper plate inside the entrance panel is where the station outside > ground system connects, and where the stations inside ground system > connects via a Polyphasor on each coax cable, and a #8 copper wire. > > On the rear of the desk will be a CM Choke I constructed-- RG-400, on > two FT-240/31 cores. > > At the antenna, is coax, feeding the Entrance panel.? I am conflicted on > grounding the base of the antenna, and possibly adding another set of > Polyphasors there...? More reading is needed on this... The aforementioned link, and Ward's book. BTW -- all the connectors on that beautiful new panel SHOULD be bonded to the panel, and the panel should be bonded to your station ground bus. Elecraft's earliest VHF transverters were built with feedthrough BNCs that were insulated from the shielding enclosure, and the two I bought used are unstable as a result. 73, Jim K9YC From dave at nk7z.net Wed Apr 22 23:35:44 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 22 Apr 2020 20:35:44 -0700 Subject: [Elecraft] [Elecraft-K3] Latest on the new home for my K3... In-Reply-To: <19dc67c5-8de8-067b-c090-b0175f8fab03@audiosystemsgroup.com> References: <6d673c0c-2643-57ab-e38c-de6d57452acb@nk7z.net> <7236701d-b5c5-b669-500f-e33f14e7b690@montac.com> <2bd21a06-61fe-f727-2bdd-a04ba0e20c50@nk7z.net> <359cafbc-5ec7-7510-9f25-4803f8a9d670@montac.com> <316eadfb-893d-5483-841b-bb55a0e01388@nk7z.net> <4556bb17-d2fd-5fee-c7af-00a88e64d938@nk7z.net> <19dc67c5-8de8-067b-c090-b0175f8fab03@audiosystemsgroup.com> Message-ID: Hi Jim, Thanks, I was hoping you might chime in with some advice... It will be simple to add a ground to the panel... I used metal BNC with star washers on each. Also, thanks for the links, I'll go look them over in the morning! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/22/20 8:14 PM, Jim Brown wrote: > On 4/22/2020 1:51 PM, Dave Cole wrote: >> I am trying to reduce the potential for ground loops, so I will not be >> using the patch panel as a ground connection point, it will just look >> like long coax runs to the equipment. > > Ain't no such thing as a "ground loop," except to the extent that it > could couple a magnetic field. In practice, that only happens when > there's an error in mains power wiring, or when there's leakage flux > from a big power transformer in close proximity. Indeed, with proper > bonding for lightning protection and hum/buzz/RFI control, there SHOULD > be loops due to multiple bonding paths. That's addressed in this slide > deck for talks I've done at Visalia, Pacificon, and to multiple ham > clubs, and most of it was incorporated in Ward Silver's ARRL book on the > topic, on which we collaborated. > > http://k9yc.com/GroundingAndAudio.pdf >> >> I will be installing an entrance panel, and an additional ground rod >> later this summer. >> >> The entrance panel will be connected via #6 to a set of three 8 foot >> ground rods, one at the electrical service, one at my shack, just >> outside the house, 15 feet away from the service ground, and a third, >> 15 feet further down the house, all connected with #6 as well. >> >> All incoming coax will be fed in via the entrance panel.? The entrance >> panel is a NEMA4 weatherproof box, 3 by 2, with a 1/4 inch copper >> sheet bolted to the raised supports in the rear of the box. >> >> The copper plate inside the entrance panel is where the station >> outside ground system connects, and where the stations inside ground >> system connects via a Polyphasor on each coax cable, and a #8 copper >> wire. >> >> On the rear of the desk will be a CM Choke I constructed-- RG-400, on >> two FT-240/31 cores. >> >> At the antenna, is coax, feeding the Entrance panel.? I am conflicted >> on grounding the base of the antenna, and possibly adding another set >> of Polyphasors there...? More reading is needed on this... > > The aforementioned link, and Ward's book. BTW -- all the connectors on > that beautiful new panel SHOULD be bonded to the panel, and the panel > should be bonded to your station ground bus. Elecraft's earliest VHF > transverters were built with feedthrough BNCs that were insulated from > the shielding enclosure, and the two I bought used are unstable as a > result. > > 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 no9e at arrl.net Thu Apr 23 03:18:58 2020 From: no9e at arrl.net (Ignacy) Date: Thu, 23 Apr 2020 00:18:58 -0700 (MST) Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> Message-ID: <1587626338226-0.post@n2.nabble.com> MFJ-998 seems to tune anything. I am always trembling that it will smoke, but for 5 years, no smoke. Even matching 80m dipole (fed by ladderline) on 40m. It has 2 outputs and keeps matches in memory. Getting it to tune at frequency previously tuned takes a fraction of a second. If both antennas were used at same frequency, tuning for one antenna automatically brings tune in the second. Very convenient for A/B comparisons. The tuner displays L, C and SWR. Ignacy, NO9E -- Sent from: http://elecraft.365791.n2.nabble.com/ From rick.nk7i at gmail.com Thu Apr 23 03:27:19 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Thu, 23 Apr 2020 00:27:19 -0700 Subject: [Elecraft] KPA1500 Tuner Question for the Group In-Reply-To: <1587626338226-0.post@n2.nabble.com> References: <02f801d617ed$82d95ee0$888c1ca0$@LNAINC.com> <1587626338226-0.post@n2.nabble.com> Message-ID: <03742872-e4e5-1c6b-a0f4-c3c34cd469e0@gmail.com> The KAT500 utility will show the LC values in play after tuning (and caps on/not on the antenna side) .? I expect that the KPA1500 utility will do the same thing; I'll know more next week when I put the KPA1500 online (the new station and shack are almost completed). I keep the entire station, including the KPA500 and KAT500 utilities running 24/7/365; this allows simpler remote station operations.? Plus it's nice to compare the SWR on both devices (though neither has ever been different from the other); belt and suspenders.? I don't keep the amp(s) on all the time, just when I'm actively using the station. Rick NK7I On 4/23/2020 12:18 AM, Ignacy wrote: > MFJ-998 seems to tune anything. I am always trembling that it will smoke, but > for 5 years, no smoke. Even matching 80m dipole (fed by ladderline) on 40m. > > It has 2 outputs and keeps matches in memory. Getting it to tune at > frequency previously tuned takes a fraction of a second. If both antennas > were used at same frequency, tuning for one antenna automatically brings > tune in the second. Very convenient for A/B comparisons. > > The tuner displays L, C and SWR. > > Ignacy, NO9E > > > > > -- > 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 rick.nk7i at gmail.com From w8fn at windstream.net Thu Apr 23 08:37:30 2020 From: w8fn at windstream.net (Randy Farmer) Date: Thu, 23 Apr 2020 08:37:30 -0400 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> Message-ID: I'm currently in the process of wiring up my new station and I happen to be working on the equipment bonding phase for my pair of K3s SO2R station. I'm doing my best to get decent connectivity between the station components, but can't really figure out how to terminate large (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, especially since something like six bond wires need to be attached to the transceivers. There appear to be no available ring terminals that will fit these small screws; the smallest I can find are for #10 studs. Even by using a threaded standoff installed in the K3 ground nut and a longer screw to stand the rings off, stacking a bunch of these huge terminals is extremely difficult. Providing some means of reasonably quick disconnect for servicing purposes is equally difficult. Exactly how can I go about connecting big wires to little ground posts? 73... Randy, W8FN On 4/20/2020 10:22 PM, Jim Brown wrote: > On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >> I'm asking what method and >> attachment point, to each piece of equipment, you experienced K-Line >> owners >> use to bond the K3s, P3, SP3, etc. and then on to the station ground. > > I use wires soldered to screw lugs, making sure that the attachment > point is not insulated from the chassis by paint. Some of the > equipment has a dedicated grounding screw. Shells of DB connectors > SHOULD be bonded to the equipment chassis, but not always -- some mfrs > screw up and fail to do that. > > Some of my equipment goes out in the field from time to time, so I use > single circuit Power Pole connectors to make that easy. I'll use 2-6" > between the lug and the PowerPole, then make a loop soldered to a > PowerPoles that connect to each piece of gear in the string (so each > connector has two wires). There are lots of suitable variations on > this, depending on how the shack is laid out. > > These are the slides for my talks on station power, grounding, and > bonding. http://k9yc.com/GroundingAndAudio.pdf > > 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 w8fn at windstream.net From dave at nk7z.net Thu Apr 23 08:53:04 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 05:53:04 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> Message-ID: <72829235-e255-a6ec-08ce-6b119121c0d1@nk7z.net> Hi Randy, I rebuilt my shack six years ago, and documented a bit of that. One part was connecting grounds to the back of the rigs. See: https://www.nk7z.net/rebuilding-the-shack/ Look at a few of the photos. One shows a large copper ring terminal, which will fit a K3, etc., and how it was connected to 3/4 inch braid. Basically I folded the braid, inserted it and some solder cut to length into the ring terminal solder bucket. I then held it in place with a set of pliers, and hit the ring terminal with a Burns-O-Matic torch. You can see the jig I had set up on the top of the glass jar. Yes... I know grounds are not supposed to be soldered... I am sure there are better ways... This is just what I did. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 5:37 AM, Randy Farmer wrote: > I'm currently in the process of wiring up my new station and I happen to > be working on the equipment bonding phase for my pair of K3s SO2R > station. I'm doing my best to get decent connectivity between the > station components, but can't really figure out how to terminate large > (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, > especially since something like six bond wires need to be attached to > the transceivers. There appear to be no available ring terminals that > will fit these small screws; the smallest I can find are for #10 studs. > Even by using a threaded standoff installed in the K3 ground nut and a > longer screw to stand the rings off, stacking a bunch of these huge > terminals is extremely difficult. Providing some means of reasonably > quick disconnect for servicing purposes is equally difficult. Exactly > how can I go about connecting big wires to little ground posts? > > 73... > Randy, W8FN > > On 4/20/2020 10:22 PM, Jim Brown wrote: >> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>> I'm asking what method and >>> attachment point, to each piece of equipment, you experienced K-Line >>> owners >>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >> >> I use wires soldered to screw lugs, making sure that the attachment >> point is not insulated from the chassis by paint. Some of the >> equipment has a dedicated grounding screw. Shells of DB connectors >> SHOULD be bonded to the equipment chassis, but not always -- some mfrs >> screw up and fail to do that. >> >> Some of my equipment goes out in the field from time to time, so I use >> single circuit Power Pole connectors to make that easy. I'll use 2-6" >> between the lug and the PowerPole, then make a loop soldered to a >> PowerPoles that connect to each piece of gear in the string (so each >> connector has two wires). There are lots of suitable variations on >> this, depending on how the shack is laid out. >> >> These are the slides for my talks on station power, grounding, and >> bonding. http://k9yc.com/GroundingAndAudio.pdf >> >> 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 w8fn at windstream.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 w8fn at windstream.net Thu Apr 23 09:11:52 2020 From: w8fn at windstream.net (Randy Farmer) Date: Thu, 23 Apr 2020 09:11:52 -0400 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: <72829235-e255-a6ec-08ce-6b119121c0d1@nk7z.net> References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> <72829235-e255-a6ec-08ce-6b119121c0d1@nk7z.net> Message-ID: <0fb68d8a-399f-9d61-b6ee-6542b1d070f3@windstream.net> Thanks for the info, Dave. Your approach works fine IF you're using the ground bar ground technique. I'm attempting to follow Jim's advice (see slides 91 through 113 in his Grounding and Audio presentation referenced below). For this, you need bond wires between the individual boxes in the station. BTW, I have found that 1/2" braid can be rolled up and crimped in 45A Power Pole connectors. 73... Randy, W8FN On 4/23/2020 8:53 AM, Dave Cole wrote: > Hi Randy, > > I rebuilt my shack six years ago, and documented a bit of that. One > part was connecting grounds to the back of the rigs.? See: > > https://www.nk7z.net/rebuilding-the-shack/ > > Look at a few of the photos.? One shows a large copper ring terminal, > which will fit a K3, etc., and how it was connected to 3/4 inch braid. > > Basically I folded the braid, inserted it and some solder cut to > length into the ring terminal solder bucket.? I then held it in place > with a set of pliers, and hit the ring terminal with a Burns-O-Matic > torch. You can see the jig I had set up on the top of the glass jar. > > Yes...? I know grounds are not supposed to be soldered... > > I am sure there are better ways...? This is just what I did. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/23/20 5:37 AM, Randy Farmer wrote: >> I'm currently in the process of wiring up my new station and I happen >> to be working on the equipment bonding phase for my pair of K3s SO2R >> station. I'm doing my best to get decent connectivity between the >> station components, but can't really figure out how to terminate >> large (AWG 10) wire to the teeny 6-32 ground screws on the back of >> the K3, especially since something like six bond wires need to be >> attached to the transceivers. There appear to be no available ring >> terminals that will fit these small screws; the smallest I can find >> are for #10 studs. Even by using a threaded standoff installed in the >> K3 ground nut and a longer screw to stand the rings off, stacking a >> bunch of these huge terminals is extremely difficult. Providing some >> means of reasonably quick disconnect for servicing purposes is >> equally difficult. Exactly how can I go about connecting big wires to >> little ground posts? >> >> 73... >> Randy, W8FN >> >> On 4/20/2020 10:22 PM, Jim Brown wrote: >>> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>>> I'm asking what method and >>>> attachment point, to each piece of equipment, you experienced >>>> K-Line owners >>>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >>> >>> I use wires soldered to screw lugs, making sure that the attachment >>> point is not insulated from the chassis by paint. Some of the >>> equipment has a dedicated grounding screw. Shells of DB connectors >>> SHOULD be bonded to the equipment chassis, but not always -- some >>> mfrs screw up and fail to do that. >>> >>> Some of my equipment goes out in the field from time to time, so I >>> use single circuit Power Pole connectors to make that easy. I'll use >>> 2-6" between the lug and the PowerPole, then make a loop soldered to >>> a PowerPoles that connect to each piece of gear in the string (so >>> each connector has two wires). There are lots of suitable variations >>> on this, depending on how the shack is laid out. >>> >>> These are the slides for my talks on station power, grounding, and >>> bonding. http://k9yc.com/GroundingAndAudio.pdf >>> >>> 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 w8fn at windstream.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 w8fn at windstream.net From dave at nk7z.net Thu Apr 23 09:24:50 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 06:24:50 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: <0fb68d8a-399f-9d61-b6ee-6542b1d070f3@windstream.net> References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> <72829235-e255-a6ec-08ce-6b119121c0d1@nk7z.net> <0fb68d8a-399f-9d61-b6ee-6542b1d070f3@windstream.net> Message-ID: <927992dd-41cb-3228-7e55-a0a1c6408f7e@nk7z.net> Hi Randy, Thanks for the info! Upon reflection, I will be following Jim's slide 105. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 6:11 AM, Randy Farmer wrote: > Thanks for the info, Dave. Your approach works fine IF you're using the > ground bar ground technique. I'm attempting to follow Jim's advice (see > slides 91 through 113 in his Grounding and Audio presentation referenced > below). For this, you need bond wires between the individual boxes in > the station. BTW, I have found that 1/2" braid can be rolled up and > crimped in 45A Power Pole connectors. > > 73... > Randy, W8FN > > On 4/23/2020 8:53 AM, Dave Cole wrote: >> Hi Randy, >> >> I rebuilt my shack six years ago, and documented a bit of that. One >> part was connecting grounds to the back of the rigs.? See: >> >> https://www.nk7z.net/rebuilding-the-shack/ >> >> Look at a few of the photos.? One shows a large copper ring terminal, >> which will fit a K3, etc., and how it was connected to 3/4 inch braid. >> >> Basically I folded the braid, inserted it and some solder cut to >> length into the ring terminal solder bucket.? I then held it in place >> with a set of pliers, and hit the ring terminal with a Burns-O-Matic >> torch. You can see the jig I had set up on the top of the glass jar. >> >> Yes...? I know grounds are not supposed to be soldered... >> >> I am sure there are better ways...? This is just what I did. >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 4/23/20 5:37 AM, Randy Farmer wrote: >>> I'm currently in the process of wiring up my new station and I happen >>> to be working on the equipment bonding phase for my pair of K3s SO2R >>> station. I'm doing my best to get decent connectivity between the >>> station components, but can't really figure out how to terminate >>> large (AWG 10) wire to the teeny 6-32 ground screws on the back of >>> the K3, especially since something like six bond wires need to be >>> attached to the transceivers. There appear to be no available ring >>> terminals that will fit these small screws; the smallest I can find >>> are for #10 studs. Even by using a threaded standoff installed in the >>> K3 ground nut and a longer screw to stand the rings off, stacking a >>> bunch of these huge terminals is extremely difficult. Providing some >>> means of reasonably quick disconnect for servicing purposes is >>> equally difficult. Exactly how can I go about connecting big wires to >>> little ground posts? >>> >>> 73... >>> Randy, W8FN >>> >>> On 4/20/2020 10:22 PM, Jim Brown wrote: >>>> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>>>> I'm asking what method and >>>>> attachment point, to each piece of equipment, you experienced >>>>> K-Line owners >>>>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >>>> >>>> I use wires soldered to screw lugs, making sure that the attachment >>>> point is not insulated from the chassis by paint. Some of the >>>> equipment has a dedicated grounding screw. Shells of DB connectors >>>> SHOULD be bonded to the equipment chassis, but not always -- some >>>> mfrs screw up and fail to do that. >>>> >>>> Some of my equipment goes out in the field from time to time, so I >>>> use single circuit Power Pole connectors to make that easy. I'll use >>>> 2-6" between the lug and the PowerPole, then make a loop soldered to >>>> a PowerPoles that connect to each piece of gear in the string (so >>>> each connector has two wires). There are lots of suitable variations >>>> on this, depending on how the shack is laid out. >>>> >>>> These are the slides for my talks on station power, grounding, and >>>> bonding. http://k9yc.com/GroundingAndAudio.pdf >>>> >>>> 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 w8fn at windstream.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 w8fn at windstream.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 chandlerusm at gmail.com Thu Apr 23 09:49:31 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Thu, 23 Apr 2020 08:49:31 -0500 Subject: [Elecraft] K3S poor CW reported with N1MM+ Message-ID: Over the past few months I've been entering the hour-long CWT mini-contests each Wednesday. Four times post-contest I've gotten an email from stations I've worked calling my attention to a problem with my CW. It's not every time... I've entered 20 of these contests this year, and average about 80 QSO's each time. Also, outside of contest I always use a bug and always get good reports. The described symptoms vary... "sounds like maybe RF getting into it" and "Dits and dahs run together" and "your tone is not the same as others" "the weighting seems way off...didn't seem right in tone." Currently I have the K3S connected to the shack PC via the USB interface, with N1MM set for CW via DTR on the same port as rig control. The shack PC is an i7 quad-core 4.2 GHz with SSD and 16 GB of RAM. Lots of horsepower. I've added ferrites to both ends of the K3S-PC USB cable. I've monitored my CW (both bug-sent and N1MM+) via some WebSDR's, and it sounds ok to me. I've tried adjusting the K3S CW-Weighting menu item but monitoring that didn't seem to make any difference with the N1MM+ sent CW. For now, I've ordered a K1EL Winkeyer to try to take the PC/interface out of the CW generating chain based on reports that it prevents weighting and bad CW timing issues from occurring. I also ordered a USB cable with built-in ferrites to go with it. Hopefully that will solve the issue. Has anyone here had a similar problem? Any suggestions or hints? Many thanks es 73 de Chuck, WS1L -- =================== Chuck Chandler chandlerusm at gmail.com =================== From k2vco.vic at gmail.com Thu Apr 23 10:13:19 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Thu, 23 Apr 2020 17:13:19 +0300 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> Message-ID: <185ea11b-7c13-8e82-5687-4bc47150818c@gmail.com> I use thin, flat, copper strips. I use a paper punch to make neat holes in them. You can stack a whole bunch of them on a terminal. They are a little fragile, but you don't have to mess with them often. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 23/04/2020 15:37, Randy Farmer wrote: > I'm currently in the process of wiring up my new station and I happen to > be working on the equipment bonding phase for my pair of K3s SO2R > station. I'm doing my best to get decent connectivity between the > station components, but can't really figure out how to terminate large > (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, > especially since something like six bond wires need to be attached to > the transceivers. There appear to be no available ring terminals that > will fit these small screws; the smallest I can find are for #10 studs. > Even by using a threaded standoff installed in the K3 ground nut and a > longer screw to stand the rings off, stacking a bunch of these huge > terminals is extremely difficult. Providing some means of reasonably > quick disconnect for servicing purposes is equally difficult. Exactly > how can I go about connecting big wires to little ground posts? > > 73... > Randy, W8FN > > On 4/20/2020 10:22 PM, Jim Brown wrote: >> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>> I'm asking what method and >>> attachment point, to each piece of equipment, you experienced K-Line >>> owners >>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >> >> I use wires soldered to screw lugs, making sure that the attachment >> point is not insulated from the chassis by paint. Some of the >> equipment has a dedicated grounding screw. Shells of DB connectors >> SHOULD be bonded to the equipment chassis, but not always -- some mfrs >> screw up and fail to do that. >> >> Some of my equipment goes out in the field from time to time, so I use >> single circuit Power Pole connectors to make that easy. I'll use 2-6" >> between the lug and the PowerPole, then make a loop soldered to a >> PowerPoles that connect to each piece of gear in the string (so each >> connector has two wires). There are lots of suitable variations on >> this, depending on how the shack is laid out. >> >> These are the slides for my talks on station power, grounding, and >> bonding. http://k9yc.com/GroundingAndAudio.pdf >> >> 73, Jim K9YC From dave at nk7z.net Thu Apr 23 10:23:14 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 07:23:14 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding, question for K9YC. In-Reply-To: <185ea11b-7c13-8e82-5687-4bc47150818c@gmail.com> References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> <185ea11b-7c13-8e82-5687-4bc47150818c@gmail.com> Message-ID: Jim, In looking at your slides, slide 105, (thanks for sharing the presentation BTW), it strikes me that the coax cable braid running between radio/amp/tuner/antenna panel, would act as a bonding connection, so I would not need to add a large wire between those items. Is this correct? If not, why not? 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 7:13 AM, Victor Rosenthal 4X6GP wrote: > I use thin, flat, copper strips. I use a paper punch to make neat holes > in them. You can stack a whole bunch of them on a terminal. They are a > little fragile, but you don't have to mess with them often. > > 73, > Victor, 4X6GP > Rehovot, Israel > Formerly K2VCO > CWops no. 5 > http://www.qsl.net/k2vco/ > On 23/04/2020 15:37, Randy Farmer wrote: >> I'm currently in the process of wiring up my new station and I happen >> to be working on the equipment bonding phase for my pair of K3s SO2R >> station. I'm doing my best to get decent connectivity between the >> station components, but can't really figure out how to terminate large >> (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, >> especially since something like six bond wires need to be attached to >> the transceivers. There appear to be no available ring terminals that >> will fit these small screws; the smallest I can find are for #10 >> studs. Even by using a threaded standoff installed in the K3 ground >> nut and a longer screw to stand the rings off, stacking a bunch of >> these huge terminals is extremely difficult. Providing some means of >> reasonably quick disconnect for servicing purposes is equally >> difficult. Exactly how can I go about connecting big wires to little >> ground posts? >> >> 73... >> Randy, W8FN >> >> On 4/20/2020 10:22 PM, Jim Brown wrote: >>> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>>> I'm asking what method and >>>> attachment point, to each piece of equipment, you experienced K-Line >>>> owners >>>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >>> >>> I use wires soldered to screw lugs, making sure that the attachment >>> point is not insulated from the chassis by paint. Some of the >>> equipment has a dedicated grounding screw. Shells of DB connectors >>> SHOULD be bonded to the equipment chassis, but not always -- some >>> mfrs screw up and fail to do that. >>> >>> Some of my equipment goes out in the field from time to time, so I >>> use single circuit Power Pole connectors to make that easy. I'll use >>> 2-6" between the lug and the PowerPole, then make a loop soldered to >>> a PowerPoles that connect to each piece of gear in the string (so >>> each connector has two wires). There are lots of suitable variations >>> on this, depending on how the shack is laid out. >>> >>> These are the slides for my talks on station power, grounding, and >>> bonding. http://k9yc.com/GroundingAndAudio.pdf >>> >>> 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 n4zr at comcast.net Thu Apr 23 10:27:52 2020 From: n4zr at comcast.net (N4ZR) Date: Thu, 23 Apr 2020 10:27:52 -0400 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> Message-ID: I think the answer lies in the ground bus.? I used a 3/4" copper water pipe along the back edge of my desk, with a short pigtail of #2 wire to the K3.? I used a yellow-jacketed Home Depot ring terminal on both ends of the #2, and metal-tapping screws to connect to the bus. 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 4/23/2020 8:37 AM, Randy Farmer wrote: > I'm currently in the process of wiring up my new station and I happen > to be working on the equipment bonding phase for my pair of K3s SO2R > station. I'm doing my best to get decent connectivity between the > station components, but can't really figure out how to terminate large > (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, > especially since something like six bond wires need to be attached to > the transceivers. There appear to be no available ring terminals that > will fit these small screws; the smallest I can find are for #10 > studs. Even by using a threaded standoff installed in the K3 ground > nut and a longer screw to stand the rings off, stacking a bunch of > these huge terminals is extremely difficult. Providing some means of > reasonably quick disconnect for servicing purposes is equally > difficult. Exactly how can I go about connecting big wires to little > ground posts? > > 73... > Randy, W8FN > > On 4/20/2020 10:22 PM, Jim Brown wrote: >> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>> I'm asking what method and >>> attachment point, to each piece of equipment, you experienced K-Line >>> owners >>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >> >> I use wires soldered to screw lugs, making sure that the attachment >> point is not insulated from the chassis by paint. Some of the >> equipment has a dedicated grounding screw. Shells of DB connectors >> SHOULD be bonded to the equipment chassis, but not always -- some >> mfrs screw up and fail to do that. >> >> Some of my equipment goes out in the field from time to time, so I >> use single circuit Power Pole connectors to make that easy. I'll use >> 2-6" between the lug and the PowerPole, then make a loop soldered to >> a PowerPoles that connect to each piece of gear in the string (so >> each connector has two wires). There are lots of suitable variations >> on this, depending on how the shack is laid out. >> >> These are the slides for my talks on station power, grounding, and >> bonding. http://k9yc.com/GroundingAndAudio.pdf >> >> 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 w8fn at windstream.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 n4zr at comcast.net From radiok4ia at gmail.com Thu Apr 23 10:40:29 2020 From: radiok4ia at gmail.com (Buck) Date: Thu, 23 Apr 2020 10:40:29 -0400 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: <0fb68d8a-399f-9d61-b6ee-6542b1d070f3@windstream.net> References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> <72829235-e255-a6ec-08ce-6b119121c0d1@nk7z.net> <0fb68d8a-399f-9d61-b6ee-6542b1d070f3@windstream.net> Message-ID: <54afd664-375d-1077-1484-56d99d5fe41e@Gmail.com> Poke a hole in the braid and sandwich it between two large washers. Or drill a hole in strap and sandwich that. You can then put multiple holes in the strap to connect other wires. I wish Elecraft had larger ground lugs. k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/23/2020 9:11 AM, Randy Farmer wrote: > Thanks for the info, Dave. Your approach works fine IF you're using the > ground bar ground technique. I'm attempting to follow Jim's advice (see > slides 91 through 113 in his Grounding and Audio presentation referenced > below). For this, you need bond wires between the individual boxes in > the station. BTW, I have found that 1/2" braid can be rolled up and > crimped in 45A Power Pole connectors. > > 73... > Randy, W8FN > > On 4/23/2020 8:53 AM, Dave Cole wrote: >> Hi Randy, >> >> I rebuilt my shack six years ago, and documented a bit of that. One >> part was connecting grounds to the back of the rigs.? See: >> >> https://www.nk7z.net/rebuilding-the-shack/ >> >> Look at a few of the photos.? One shows a large copper ring terminal, >> which will fit a K3, etc., and how it was connected to 3/4 inch braid. >> >> Basically I folded the braid, inserted it and some solder cut to >> length into the ring terminal solder bucket.? I then held it in place >> with a set of pliers, and hit the ring terminal with a Burns-O-Matic >> torch. You can see the jig I had set up on the top of the glass jar. >> >> Yes...? I know grounds are not supposed to be soldered... >> >> I am sure there are better ways...? This is just what I did. >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> On 4/23/20 5:37 AM, Randy Farmer wrote: >>> I'm currently in the process of wiring up my new station and I happen >>> to be working on the equipment bonding phase for my pair of K3s SO2R >>> station. I'm doing my best to get decent connectivity between the >>> station components, but can't really figure out how to terminate >>> large (AWG 10) wire to the teeny 6-32 ground screws on the back of >>> the K3, especially since something like six bond wires need to be >>> attached to the transceivers. There appear to be no available ring >>> terminals that will fit these small screws; the smallest I can find >>> are for #10 studs. Even by using a threaded standoff installed in the >>> K3 ground nut and a longer screw to stand the rings off, stacking a >>> bunch of these huge terminals is extremely difficult. Providing some >>> means of reasonably quick disconnect for servicing purposes is >>> equally difficult. Exactly how can I go about connecting big wires to >>> little ground posts? >>> >>> 73... >>> Randy, W8FN >>> >>> On 4/20/2020 10:22 PM, Jim Brown wrote: >>>> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>>>> I'm asking what method and >>>>> attachment point, to each piece of equipment, you experienced >>>>> K-Line owners >>>>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >>>> >>>> I use wires soldered to screw lugs, making sure that the attachment >>>> point is not insulated from the chassis by paint. Some of the >>>> equipment has a dedicated grounding screw. Shells of DB connectors >>>> SHOULD be bonded to the equipment chassis, but not always -- some >>>> mfrs screw up and fail to do that. >>>> >>>> Some of my equipment goes out in the field from time to time, so I >>>> use single circuit Power Pole connectors to make that easy. I'll use >>>> 2-6" between the lug and the PowerPole, then make a loop soldered to >>>> a PowerPoles that connect to each piece of gear in the string (so >>>> each connector has two wires). There are lots of suitable variations >>>> on this, depending on how the shack is laid out. >>>> >>>> These are the slides for my talks on station power, grounding, and >>>> bonding. http://k9yc.com/GroundingAndAudio.pdf >>>> >>>> 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 w8fn at windstream.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 w8fn at windstream.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 radiok4ia at gmail.com From FlatHat at comcast.net Thu Apr 23 10:45:12 2020 From: FlatHat at comcast.net (Richard) Date: Thu, 23 Apr 2020 10:45:12 -0400 Subject: [Elecraft] The Headset Search Goes On Message-ID: <8CFAFC95-49B1-4B3C-87A2-B994F1307B06@comcast.net> Has anyone had experience with the Audio-Technica BPHS1 headset? If so, please contact me at MY EMAIL ADDRESS. FlatHat at comcast.net Cheers! Richard Kunc - W4KBX From kzerocx at gmail.com Thu Apr 23 11:38:12 2020 From: kzerocx at gmail.com (Gary Peterson) Date: Thu, 23 Apr 2020 09:38:12 -0600 Subject: [Elecraft] Latest on the new home for my K3... Message-ID: I have been following this thread with interest. Years ago, I designed a patch panel for the ham shack. Knowing that I sometimes have a propensity to make stupid mistakes, being a retired broadcast engineer, and being a firm believer in the If anything can go wrong, it will club, I made the patch panel as foolproof as I could. All receivers and sources of RF terminate in N female, panel mount connectors. All loads, such as antennas or the dummy load terminate in SO239 panel mount connectors. All patch cables have an N male on one end and a PL259 on the other end. This prevents accidental feeding of high level RF from my K3S into my Collins 51J4 or feeding my 75A4, Viking Valiant combo into my amplified loop receive antenna. I love patch panels. If anyone is planning a patch panel and does klutzy, brain fart things like I occasionally do, maybe this will help. Gary K0CX >I am undertaking a full rebuild of my operating position, note the Patch >Panel does not say K3 on it... That means I can replace things with a >K4 later... >Dave (NK7Z) From kzerocx at gmail.com Thu Apr 23 11:44:55 2020 From: kzerocx at gmail.com (Gary Peterson) Date: Thu, 23 Apr 2020 09:44:55 -0600 Subject: [Elecraft] Latest on the new home for my K3... Message-ID: <5B4CA172310440D59F4696507238D5C5@WIN7LowProfile> I almost forgot to mention that when making up the patch cables, use colored heat shrink on both ends of the outside of the coax, adjacent to the connectors. If there is a jumble of patches, it is much easier to quickly see what is patched to what. >I love patch panels. If anyone is planning a patch panel and does klutzy, brain fart things like I occasionally do, maybe this will help. >Gary >K0CX From donovanf at starpower.net Thu Apr 23 12:07:16 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Thu, 23 Apr 2020 12:07:16 -0400 (EDT) Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: Message-ID: <1711833593.1523586.1587658036009.JavaMail.root@starpower.net> Hey Pete, 2 AWG wire is 1/4 in diameter... Are you sure? Maybe your using super flexible welding wire... Maybe not... 73 Frank W3LPL ----- Original Message ----- From: "N4ZR" To: elecraft at mailman.qth.net Sent: Thursday, April 23, 2020 2:27:52 PM Subject: Re: [Elecraft] Elecraft K3s, etc. bonding I think the answer lies in the ground bus. I used a 3/4" copper water pipe along the back edge of my desk, with a short pigtail of #2 wire to the K3. I used a yellow-jacketed Home Depot ring terminal on both ends of the #2, and metal-tapping screws to connect to the bus. 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 4/23/2020 8:37 AM, Randy Farmer wrote: > I'm currently in the process of wiring up my new station and I happen > to be working on the equipment bonding phase for my pair of K3s SO2R > station. I'm doing my best to get decent connectivity between the > station components, but can't really figure out how to terminate large > (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, > especially since something like six bond wires need to be attached to > the transceivers. There appear to be no available ring terminals that > will fit these small screws; the smallest I can find are for #10 > studs. Even by using a threaded standoff installed in the K3 ground > nut and a longer screw to stand the rings off, stacking a bunch of > these huge terminals is extremely difficult. Providing some means of > reasonably quick disconnect for servicing purposes is equally > difficult. Exactly how can I go about connecting big wires to little > ground posts? > > 73... > Randy, W8FN > > On 4/20/2020 10:22 PM, Jim Brown wrote: >> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>> I'm asking what method and >>> attachment point, to each piece of equipment, you experienced K-Line >>> owners >>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >> >> I use wires soldered to screw lugs, making sure that the attachment >> point is not insulated from the chassis by paint. Some of the >> equipment has a dedicated grounding screw. Shells of DB connectors >> SHOULD be bonded to the equipment chassis, but not always -- some >> mfrs screw up and fail to do that. >> >> Some of my equipment goes out in the field from time to time, so I >> use single circuit Power Pole connectors to make that easy. I'll use >> 2-6" between the lug and the PowerPole, then make a loop soldered to >> a PowerPoles that connect to each piece of gear in the string (so >> each connector has two wires). There are lots of suitable variations >> on this, depending on how the shack is laid out. >> >> These are the slides for my talks on station power, grounding, and >> bonding. http://k9yc.com/GroundingAndAudio.pdf >> >> 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 w8fn at windstream.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 n4zr 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 donovanf at starpower.net From dave at nk7z.net Thu Apr 23 12:17:36 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 09:17:36 -0700 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: References: Message-ID: That's a really good idea, wish I had thought of that... I also worked in Broadcast Engineering for a few decades. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 8:38 AM, Gary Peterson wrote: > I have been following this thread with interest. > Years ago, I designed a patch panel for the ham shack. > Knowing that I sometimes have a propensity to make stupid mistakes, being a retired broadcast engineer, and being a firm believer in the If anything can go wrong, it will club, I made the patch panel as foolproof as I could. > > All receivers and sources of RF terminate in N female, panel mount connectors. All loads, such as antennas or the dummy load terminate in SO239 panel mount connectors. All patch cables have an N male on one end and a PL259 on the other end. This prevents accidental feeding of high level RF from my K3S into my Collins 51J4 or feeding my 75A4, Viking Valiant combo into my amplified loop receive antenna. > > I love patch panels. If anyone is planning a patch panel and does klutzy, brain fart things like I occasionally do, maybe this will help. > > Gary > K0CX > > >> I am undertaking a full rebuild of my operating position, note the Patch >> Panel does not say K3 on it... That means I can replace things with a >> K4 later... >> 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 dave at nk7z.net > From dave at nk7z.net Thu Apr 23 12:18:08 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 09:18:08 -0700 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: <5B4CA172310440D59F4696507238D5C5@WIN7LowProfile> References: <5B4CA172310440D59F4696507238D5C5@WIN7LowProfile> Message-ID: <70851d5a-6e8c-8d71-3b75-58ed43d9732a@nk7z.net> That's another good idea, and thanks!!! I will do that! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 8:44 AM, Gary Peterson wrote: > I almost forgot to mention that when making up the patch cables, use colored heat shrink on both ends of the outside of the coax, adjacent to the connectors. If there is a jumble of patches, it is much easier to quickly see what is patched to what. > >> I love patch panels. If anyone is planning a patch panel and does klutzy, brain fart things like I occasionally do, maybe this will help. >> Gary >> K0CX > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 eseeliger at earthlink.net Thu Apr 23 12:20:04 2020 From: eseeliger at earthlink.net (Edward Seeliger) Date: Thu, 23 Apr 2020 11:20:04 -0500 (GMT-05:00) Subject: [Elecraft] K3 KIO3B audio input output Message-ID: <1124716979.1790.1587658805215@wamui-pluto.atl.sa.earthlink.net> From n6kr at elecraft.com Thu Apr 23 13:00:06 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 23 Apr 2020 10:00:06 -0700 Subject: [Elecraft] K4 S-meter characteristics Message-ID: We've been making some final changes to firmware associated with the S-meters. Seemed like a good time to summarize how they work. The S-meters in the K4 have been upgraded from the K3/K3S: - separate, color-coded S-meters for VFO A and B - higher resolution (twice as many bars) - calibration maintained over a wide range of input signals The two S-meters are calibrated at S9 = -73 dBm (50 uV). As you change receiver front-end gain settings (preamp off/1/2, attenautor 0 to 21 dB) the S-meter level remains virtually constant. Calibration also takes into account the main/sub receiver -3 dB splitters (if engaged) and any slight variations in per-band BPF loss. The upshot is that you get a very accurate signal level indication. In addition to the S-meters, the K4 provides a convenient way to see signal levels directly in dB (relative). Typically you'd zero the reference level on band noise, then tune into a signal to get the dB increase (S+N / N). This is useful for comparison tests. The numeric values for dB, both main and sub, are shown in the status area of the display, so they don't overwrite VFO B as on the K3/K3S. In conjunction with these changes, we're updating the "SMH" remote-control command (high-resolution S-meter read) so that it reads directly in dBm. The S-meters can also be tapped to show the "mini-pan," the K4's high-resolution tuning aid. Wayne N6KR From rick.nk7i at gmail.com Thu Apr 23 13:18:24 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Thu, 23 Apr 2020 10:18:24 -0700 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: <70851d5a-6e8c-8d71-3b75-58ed43d9732a@nk7z.net> References: <5B4CA172310440D59F4696507238D5C5@WIN7LowProfile> <70851d5a-6e8c-8d71-3b75-58ed43d9732a@nk7z.net> Message-ID: My design goal is: PL259 - Antenna loads (dummy load on one port, switched) BNC - Receive Only antennas N/SMA/TNC - UHF (radio dependent) no adapters allowed. Rick NK7I On 4/23/2020 9:18 AM, Dave Cole wrote: > That's another good idea, and thanks!!!? I will do that! > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/23/20 8:44 AM, Gary Peterson wrote: >> I almost forgot to mention that when making up the patch cables, use >> colored heat shrink on both ends of the outside of the coax, adjacent >> to the connectors.? If there is a jumble of patches, it is much >> easier to quickly see what is patched to what. >> >>> I love patch panels.? If anyone is planning a patch panel and does >>> klutzy, brain fart things like I occasionally do, maybe this will help. >>> Gary >>> K0CX >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com From jim at audiosystemsgroup.com Thu Apr 23 13:41:39 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 23 Apr 2020 10:41:39 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: <0fb68d8a-399f-9d61-b6ee-6542b1d070f3@windstream.net> References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> <72829235-e255-a6ec-08ce-6b119121c0d1@nk7z.net> <0fb68d8a-399f-9d61-b6ee-6542b1d070f3@windstream.net> Message-ID: <6282ffb1-b176-c670-bbd1-e12d3c7ac9c5@audiosystemsgroup.com> On 4/23/2020 6:11 AM, Randy Farmer wrote: > I'm attempting to follow Jim's advice (see slides 91 through 113 in his > Grounding and Audio presentation referenced below). Hi Randy, In my station, I use crimp lugs that fit under chassis screws. Stranded wire works fine. When bonding in a string between interconnected gear, strands can be removed to fit in the crimps. I use single connectors to a short length of wire at each chassis, then do the looped interconnection with the mating PowerPole. Inside the shack, I mostly use #12 stranded for bonding. Clipping a few strands from each, it's possible to fit two #12 wires in the largest (#10) PowerPole insert. I've made up many hundreds of Power Pole cables of all sizes large and small, but I don't own a crimper for them. I crimp with needle-nose pliers and solder. There's a learning curve to making the insert fit. :) I use PowerPoles in this application for two reasons. First, access to the rear of gear on my operating desk is difficult, because it's a shelf attached to the wall that supports it, and there are shelves both above and below that also hold gear. The shelves are held away from the wall a few inches so that cables can pass between them. Second, some of my gear goes out into the field for FD, and for county and grid expeditions. The PowerPoles make that easier. 73, Jim K9YC From jim at audiosystemsgroup.com Thu Apr 23 13:47:55 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 23 Apr 2020 10:47:55 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding, question for K9YC. In-Reply-To: References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> <185ea11b-7c13-8e82-5687-4bc47150818c@gmail.com> Message-ID: <0eeac63e-76f8-bc65-1e3f-8ea7dc55973d@audiosystemsgroup.com> On 4/23/2020 7:23 AM, Dave Cole wrote: > In looking at your slides, slide 105, (thanks for sharing the > presentation BTW), it strikes me that the coax cable braid running > between radio/amp/tuner/antenna panel, would act as a bonding > connection, so I would not need to add a large wire between those items. > ?Is this correct?? If not, why not? The difference shows up at audio frequencies and for lightning. Coax between gear is usually longer than needed for bonding -- that is, dedicated bonding conductors can be shorter, thus lower inductance and resistance. See the slides that address audio buzz from power line leakage currents. At AF (and for lightning), bonding is a band-aid for Pin One Problems that is present in virtually all ham gear, computer gear, and audio gear. 73, Jim K9YC From kl7cw at mtaonline.net Thu Apr 23 13:46:09 2020 From: kl7cw at mtaonline.net (Frederick Dwight) Date: Thu, 23 Apr 2020 09:46:09 -0800 Subject: [Elecraft] K3S poor CW Message-ID: <20200423174908493@smtp.email-protect.gosecure.net> About a decade ago I used contest software to key my Ten Tec via a home brew optical serial port adaptor. It worked but not perfectly, some characters delayed or truncated, especially with high speed CW. Changed to a winkeyer with USB interface. This has always worked great with all rigs, including my present K3S. I now use a windows 10 PC, but not N1MM software. Others have reported success with the winkeyer, and you may find some of the other features nifty also. Good Luck Rick KL7CW KX1, KX2, K3S, etc. Sent from Mail for Windows 10 From jim at audiosystemsgroup.com Thu Apr 23 13:53:40 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 23 Apr 2020 10:53:40 -0700 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: References: Message-ID: <1460f615-191f-4583-f8ac-893e0c881010@audiosystemsgroup.com> On 4/23/2020 8:38 AM, Gary Peterson wrote: > I love patch panels. Patch panels are fine for signal routing (I also come out of broadcast), but they cannot be relied upon for bonding because the bonding path is FAR too long. Remember -- in studios (and even BC transmitters) we're interconnecting with shielded twisted pair. In our ham stations, we're using unbalanced signal lines at both AF and RF. My bonding regimen is designed to address both lightning safety and hum/buzz/RFI issues associated with unbalanced connections and the Pin One Problem. 73, Jim K9YC From jim at audiosystemsgroup.com Thu Apr 23 13:57:31 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 23 Apr 2020 10:57:31 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> Message-ID: On 4/23/2020 7:27 AM, N4ZR wrote: > I used a 3/4" copper water pipe along the back edge of my desk, with a > short pigtail of #2 wire to the K3. #2 ????? That's FAR larger than needed for bonding inside the shack. Also, remember that lightning is an RF event, not a DC event, so inductance dominates the bonding impedance. #10-#12 stranded is plenty good enough for bonding between your gear and that bonding bus. 73, Jim K9YC From jim at audiosystemsgroup.com Thu Apr 23 13:59:45 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 23 Apr 2020 10:59:45 -0700 Subject: [Elecraft] K3S poor CW In-Reply-To: <20200423174908493@smtp.email-protect.gosecure.net> References: <20200423174908493@smtp.email-protect.gosecure.net> Message-ID: <0abbe55f-e3a8-d1fa-73f8-69277d45d024@audiosystemsgroup.com> On 4/23/2020 10:46 AM, Frederick Dwight wrote: > Changed to a winkeyer > with USB interface. This has always worked great with all rigs, including my present K3S. Winkeyer (and winkeyer emulations) are very widely used by serious contesters, some of whom tool along at 40 wpm. 73, Jim K9YC From carterwc128 at gmail.com Thu Apr 23 14:00:05 2020 From: carterwc128 at gmail.com (Carter Craigie) Date: Thu, 23 Apr 2020 14:00:05 -0400 Subject: [Elecraft] VOX on KX, using a Heil headset Questions Message-ID: Hi Fellow Elecrafters, For the life of me I just cannot figure out how to set up VOX on my KX2 and KX3. I cannot seem to get the VOX annunciation to show on my screen...at all. So I need help with this first. Next I need to know the Menu settings for using a Heil Headset. Are the settings the same for each rig?) I am mainly a CW op, but there are many occasions I?d like to use SSB. Thanks in advance for any help! 73, Carter, N3AO Blacksburg, VA -- Carter, N3AO Blacksburg, VA From jimk0xu at gmail.com Thu Apr 23 14:05:44 2020 From: jimk0xu at gmail.com (Jim Rhodes) Date: Thu, 23 Apr 2020 13:05:44 -0500 Subject: [Elecraft] K3S poor CW In-Reply-To: <0abbe55f-e3a8-d1fa-73f8-69277d45d024@audiosystemsgroup.com> References: <20200423174908493@smtp.email-protect.gosecure.net> <0abbe55f-e3a8-d1fa-73f8-69277d45d024@audiosystemsgroup.com> Message-ID: Any software only CW implementation is going to have timing issues, especially with the newer operating systems. Best to offload that task to a processor with nothing else to do. Winkey or Mortty or something similar. On Thu, Apr 23, 2020, 13:00 Jim Brown wrote: > On 4/23/2020 10:46 AM, Frederick Dwight wrote: > > Changed to a winkeyer > > with USB interface. This has always worked great with all rigs, > including my present K3S. > > Winkeyer (and winkeyer emulations) are very widely used by serious > contesters, some of whom tool along at 40 wpm. > > 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 jimk0xu at gmail.com > From carterwc128 at gmail.com Thu Apr 23 14:07:08 2020 From: carterwc128 at gmail.com (Carter Craigie) Date: Thu, 23 Apr 2020 14:07:08 -0400 Subject: [Elecraft] Quick Followup to my recent query Message-ID: I DO see the VOX button on my KX3, so the question is only about my KX2 rig, which has no VOX button. Sorry for the confusion. 73, Carter, N3AO Blacksburg, VA -- Carter, N3AO Blacksburg, VA From carterwc128 at gmail.com Thu Apr 23 14:10:15 2020 From: carterwc128 at gmail.com (Carter Craigie) Date: Thu, 23 Apr 2020 14:10:15 -0400 Subject: [Elecraft] =?utf-8?q?I_don=E2=80=99t_see_my_posts_showing_up_on_t?= =?utf-8?q?he_reflector?= Message-ID: It?s been quite a while since I?ve been on this reflector. Am I doing something wrong? Help, please. 73, Carter, N3AO -- Carter, N3AO Blacksburg, VA From jimk0xu at gmail.com Thu Apr 23 14:12:01 2020 From: jimk0xu at gmail.com (Jim Rhodes) Date: Thu, 23 Apr 2020 13:12:01 -0500 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: References: Message-ID: First thing is to turn the microphone buttons off. Am at work now. But it seems like the parameter comes up under "MIK BTTN" or something like that. You need to shut them all off, as well as the bias if not using an Icom/Heil Mike. Other choice is to buy or make a splitter and use a PTT switch. On Thu, Apr 23, 2020, 13:02 Carter Craigie wrote: > Hi Fellow Elecrafters, > > For the life of me I just cannot figure out how to set up VOX on my KX2 and > KX3. I cannot seem to get the VOX annunciation to show on my screen...at > all. So I need help with this first. > > Next I need to know the Menu settings for using a Heil Headset. Are the > settings the same for each rig?) > > I am mainly a CW op, but there are many occasions I?d like to use SSB. > > Thanks in advance for any help! > > 73, > > Carter, N3AO > Blacksburg, VA > > -- > Carter, N3AO > Blacksburg, VA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 From carterwc128 at gmail.com Thu Apr 23 14:18:11 2020 From: carterwc128 at gmail.com (Carter Craigie) Date: Thu, 23 Apr 2020 14:18:11 -0400 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: References: Message-ID: <7C306105-2E79-4678-AA2C-FE6C3B363088@gmail.com> Thanks, Jim. I think I have tried turning the MIK BTN to Off, but I will try that again. Should doing that allow me to see ?VOX? on my screen? Thanks for the help. Carter, N3AO Sent from my iPad > On Apr 23, 2020, at 2:12 PM, Jim Rhodes wrote: > > ? > First thing is to turn the microphone buttons off. Am at work now. But it seems like the parameter comes up under "MIK BTTN" or something like that. You need to shut them all off, as well as the bias if not using an Icom/Heil Mike. Other choice is to buy or make a splitter and use a PTT switch. > >> On Thu, Apr 23, 2020, 13:02 Carter Craigie wrote: >> Hi Fellow Elecrafters, >> >> For the life of me I just cannot figure out how to set up VOX on my KX2 and >> KX3. I cannot seem to get the VOX annunciation to show on my screen...at >> all. So I need help with this first. >> >> Next I need to know the Menu settings for using a Heil Headset. Are the >> settings the same for each rig?) >> >> I am mainly a CW op, but there are many occasions I?d like to use SSB. >> >> Thanks in advance for any help! >> >> 73, >> >> Carter, N3AO >> Blacksburg, VA >> >> -- >> Carter, N3AO >> Blacksburg, VA >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 From k9gs at gjschwartz.com Thu Apr 23 14:24:06 2020 From: k9gs at gjschwartz.com (Gary K9GS) Date: Thu, 23 Apr 2020 13:24:06 -0500 Subject: [Elecraft] =?utf-8?q?I_don=E2=80=99t_see_my_posts_showing_up_on_t?= =?utf-8?q?he_reflector?= In-Reply-To: Message-ID: Hi Carter,This is a Gmail "feature".https://support.google.com/mail/forum/AAAAK7un8RUMHEZDkqCHEY/?hl=en&gpf=d/category-topic/gmail/reading-and-receiving-messages/MHEZDkqCHEY73,Gary K9GS -------- Original message --------From: Carter Craigie Date: 4/23/20 1:10 PM (GMT-06:00) To: elecraft at mailman.qth.net Subject: [Elecraft] I don?t see my posts showing up on the reflector It?s been quite a while since I?ve been on this reflector. Am I doingsomething wrong? Help, please.73,Carter, N3AO-- Carter, N3AOBlacksburg, VA______________________________________________________________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 k9gs at gjschwartz.com From radiok4ia at gmail.com Thu Apr 23 14:29:54 2020 From: radiok4ia at gmail.com (Buck) Date: Thu, 23 Apr 2020 14:29:54 -0400 Subject: [Elecraft] K3S poor CW In-Reply-To: References: <20200423174908493@smtp.email-protect.gosecure.net> <0abbe55f-e3a8-d1fa-73f8-69277d45d024@audiosystemsgroup.com> Message-ID: WKMini is $55 from hamcrafters2.com. It stores the USB commands (which come very fast and are not subject to timing issues) and decodes into perfect dits and dahs. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/23/2020 2:05 PM, Jim Rhodes wrote: > Any software only CW implementation is going to have timing issues, > especially with the newer operating systems. Best to offload that task to a > processor with nothing else to do. Winkey or Mortty or something similar. > > On Thu, Apr 23, 2020, 13:00 Jim Brown wrote: > >> On 4/23/2020 10:46 AM, Frederick Dwight wrote: >>> Changed to a winkeyer >>> with USB interface. This has always worked great with all rigs, >> including my present K3S. >> >> Winkeyer (and winkeyer emulations) are very widely used by serious >> contesters, some of whom tool along at 40 wpm. >> >> 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 jimk0xu 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 radiok4ia at gmail.com > From wunder at wunderwood.org Thu Apr 23 14:33:04 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Thu, 23 Apr 2020 11:33:04 -0700 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: <7C306105-2E79-4678-AA2C-FE6C3B363088@gmail.com> References: <7C306105-2E79-4678-AA2C-FE6C3B363088@gmail.com> Message-ID: <1A3F83C6-27C7-455F-8588-E283D9140E4D@wunderwood.org> For these kinds of questions, I download the manual, open it in Adobe Reader, and search it. You might be able to search it in your browser. SSB VOX setup is described on page 20 of the KX2 Owner?s Manual. https://elecraftcom.myshopify.com/pages/kx2-fully-portable-transceiver-manuals wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 23, 2020, at 11:18 AM, Carter Craigie wrote: > > Thanks, Jim. I think I have tried turning the MIK BTN to Off, but I will try that again. > > Should doing that allow me to see ?VOX? on my screen? > > Thanks for the help. > > Carter, N3AO > > Sent from my iPad > >> On Apr 23, 2020, at 2:12 PM, Jim Rhodes wrote: >> >> ? >> First thing is to turn the microphone buttons off. Am at work now. But it seems like the parameter comes up under "MIK BTTN" or something like that. You need to shut them all off, as well as the bias if not using an Icom/Heil Mike. Other choice is to buy or make a splitter and use a PTT switch. >> >>> On Thu, Apr 23, 2020, 13:02 Carter Craigie wrote: >>> Hi Fellow Elecrafters, >>> >>> For the life of me I just cannot figure out how to set up VOX on my KX2 and >>> KX3. I cannot seem to get the VOX annunciation to show on my screen...at >>> all. So I need help with this first. >>> >>> Next I need to know the Menu settings for using a Heil Headset. Are the >>> settings the same for each rig?) >>> >>> I am mainly a CW op, but there are many occasions I?d like to use SSB. >>> >>> Thanks in advance for any help! >>> >>> 73, >>> >>> Carter, N3AO >>> Blacksburg, VA >>> >>> -- >>> Carter, N3AO >>> Blacksburg, VA >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donovanf at starpower.net Thu Apr 23 14:34:30 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Thu, 23 Apr 2020 14:34:30 -0400 (EDT) Subject: [Elecraft] K3S poor CW In-Reply-To: Message-ID: <48334230.1608950.1587666870766.JavaMail.root@starpower.net> Not quite true Jim. Perhaps it would be true to say " Most software only CW implementation..." Win-Test produces superb CW from its USB or parallel port with just about any computer that will host Windows 7 or 10. 73 Frank W3LPL ----- Original Message ----- From: "Jim Rhodes" To: jim at audiosystemsgroup.com Cc: elecraft at mailman.qth.net Sent: Thursday, April 23, 2020 6:05:44 PM Subject: Re: [Elecraft] K3S poor CW Any software only CW implementation is going to have timing issues, especially with the newer operating systems. Best to offload that task to a processor with nothing else to do. Winkey or Mortty or something similar. On Thu, Apr 23, 2020, 13:00 Jim Brown wrote: > On 4/23/2020 10:46 AM, Frederick Dwight wrote: > > Changed to a winkeyer > > with USB interface. This has always worked great with all rigs, > including my present K3S. > > Winkeyer (and winkeyer emulations) are very widely used by serious > contesters, some of whom tool along at 40 wpm. > > 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 jimk0xu 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 ch at murgatroid.com Thu Apr 23 14:38:46 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Thu, 23 Apr 2020 11:38:46 -0700 Subject: [Elecraft] K3S poor CW In-Reply-To: <20200423174908493@smtp.email-protect.gosecure.net> References: <20200423174908493@smtp.email-protect.gosecure.net> Message-ID: I sure wish that K3S implemented winkeyer protocol internally. I hope this will be true for K4. 73 de Ai6KG On Thu, Apr 23, 2020 at 10:50 AM Frederick Dwight wrote: > About a decade ago I used contest software to key my Ten Tec via a home > brew optical serial port adaptor. It worked > but not perfectly, some characters delayed or truncated, especially with > high speed CW. Changed to a winkeyer > with USB interface. This has always worked great with all rigs, including > my present K3S. I now use a windows > 10 PC, but not N1MM software. Others have reported success with the > winkeyer, and you may find some > of the other features nifty also. Good Luck Rick KL7CW KX1, > KX2, K3S, etc. > > 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 ch at murgatroid.com > From carterwc128 at gmail.com Thu Apr 23 14:38:53 2020 From: carterwc128 at gmail.com (Carter Craigie) Date: Thu, 23 Apr 2020 14:38:53 -0400 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: References: Message-ID: <79BD13FD-7DAC-488D-A538-CB9025555DE1@gmail.com> Hi again, Jim! No joy, Jim, But many thanks for your suggestions. I set the Mic BTN to Off, and set the Mic BTN to On. Perhaps some others may be able to help me. 73, Carter, N3AO Sent from my iPad > On Apr 23, 2020, at 2:12 PM, Jim Rhodes wrote: > > ? > First thing is to turn the microphone buttons off. Am at work now. But it seems like the parameter comes up under "MIK BTTN" or something like that. You need to shut them all off, as well as the bias if not using an Icom/Heil Mike. Other choice is to buy or make a splitter and use a PTT switch. > >> On Thu, Apr 23, 2020, 13:02 Carter Craigie wrote: >> Hi Fellow Elecrafters, >> >> For the life of me I just cannot figure out how to set up VOX on my KX2 and >> KX3. I cannot seem to get the VOX annunciation to show on my screen...at >> all. So I need help with this first. >> >> Next I need to know the Menu settings for using a Heil Headset. Are the >> settings the same for each rig?) >> >> I am mainly a CW op, but there are many occasions I?d like to use SSB. >> >> Thanks in advance for any help! >> >> 73, >> >> Carter, N3AO >> Blacksburg, VA >> >> -- >> Carter, N3AO >> Blacksburg, VA >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 From jimk0xu at gmail.com Thu Apr 23 14:58:24 2020 From: jimk0xu at gmail.com (Jim Rhodes) Date: Thu, 23 Apr 2020 13:58:24 -0500 Subject: [Elecraft] K3S poor CW In-Reply-To: References: <20200423174908493@smtp.email-protect.gosecure.net> <0abbe55f-e3a8-d1fa-73f8-69277d45d024@audiosystemsgroup.com> Message-ID: Or Mortty for half of that, plus a little solder. On Thu, Apr 23, 2020, 13:30 Buck wrote: > WKMini is $55 from hamcrafters2.com. It stores the USB commands (which > come very fast and are not subject to timing issues) and decodes into > perfect dits and dahs. > > Buck, k4ia > Honor Roll > 8BDXCC > EasyWayHamBooks.com > > On 4/23/2020 2:05 PM, Jim Rhodes wrote: > > Any software only CW implementation is going to have timing issues, > > especially with the newer operating systems. Best to offload that task > to a > > processor with nothing else to do. Winkey or Mortty or something similar. > > > > On Thu, Apr 23, 2020, 13:00 Jim Brown wrote: > > > >> On 4/23/2020 10:46 AM, Frederick Dwight wrote: > >>> Changed to a winkeyer > >>> with USB interface. This has always worked great with all rigs, > >> including my present K3S. > >> > >> Winkeyer (and winkeyer emulations) are very widely used by serious > >> contesters, some of whom tool along at 40 wpm. > >> > >> 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 jimk0xu 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 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 jimk0xu at gmail.com > From rmcgraw at blomand.net Thu Apr 23 15:03:33 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 23 Apr 2020 14:03:33 -0500 Subject: [Elecraft] K3S poor CW In-Reply-To: References: <20200423174908493@smtp.email-protect.gosecure.net> <0abbe55f-e3a8-d1fa-73f8-69277d45d024@audiosystemsgroup.com> Message-ID: <3ea35d0c-cbc6-1e7d-da1f-dba2b66997ea@blomand.net> That's not what makes my CW poor.?? And I've found nothing to make it any better.?? I just need software that sends what I'm thinking.? But then, at age 77, that would be about 5 WPM or so. I use either single lever or dual lever paddles with my K3S. I've not observed anything related to K3S poor CW other than the operator. 73 Bob, K4TAX From carterwc128 at gmail.com Thu Apr 23 15:09:50 2020 From: carterwc128 at gmail.com (Carter Craigie) Date: Thu, 23 Apr 2020 15:09:50 -0400 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: <1A3F83C6-27C7-455F-8588-E283D9140E4D@wunderwood.org> References: <1A3F83C6-27C7-455F-8588-E283D9140E4D@wunderwood.org> Message-ID: <59A93B49-A8C0-4B87-A34A-18E3F3FFFD80@gmail.com> Thanks so much for the help setting up my KX2 to use VOX. Here are the the settings I finally settled on: VOX GN: 60 VOX MD: ON VOX DLY: 0.02 MIC BIAS: OFF MIC BTN: OFF I think had tried these settings before, but this last time they worked, and the VOX icon showed on my screen. Thanks everyone! Carter, N3AO Blacksburg, VA Sent from my iPad > On Apr 23, 2020, at 2:33 PM, Walter Underwood wrote: > > ?For these kinds of questions, I download the manual, open it in Adobe Reader, and search it. You might be able to search it in your browser. > > SSB VOX setup is described on page 20 of the KX2 Owner?s Manual. > > https://elecraftcom.myshopify.com/pages/kx2-fully-portable-transceiver-manuals > > wunder > K6WRU > Walter Underwood > CM87wj > http://observer.wunderwood.org/ (my blog) > >> On Apr 23, 2020, at 11:18 AM, Carter Craigie wrote: >> >> Thanks, Jim. I think I have tried turning the MIK BTN to Off, but I will try that again. >> >> Should doing that allow me to see ?VOX? on my screen? >> >> Thanks for the help. >> >> Carter, N3AO >> >> Sent from my iPad >> >>> On Apr 23, 2020, at 2:12 PM, Jim Rhodes wrote: >>> >>> ? >>> First thing is to turn the microphone buttons off. Am at work now. But it seems like the parameter comes up under "MIK BTTN" or something like that. You need to shut them all off, as well as the bias if not using an Icom/Heil Mike. Other choice is to buy or make a splitter and use a PTT switch. >>> >>>> On Thu, Apr 23, 2020, 13:02 Carter Craigie wrote: >>>> Hi Fellow Elecrafters, >>>> >>>> For the life of me I just cannot figure out how to set up VOX on my KX2 and >>>> KX3. I cannot seem to get the VOX annunciation to show on my screen...at >>>> all. So I need help with this first. >>>> >>>> Next I need to know the Menu settings for using a Heil Headset. Are the >>>> settings the same for each rig?) >>>> >>>> I am mainly a CW op, but there are many occasions I?d like to use SSB. >>>> >>>> Thanks in advance for any help! >>>> >>>> 73, >>>> >>>> Carter, N3AO >>>> Blacksburg, VA >>>> >>>> -- >>>> Carter, N3AO >>>> Blacksburg, VA >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.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 >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 w6png at yahoo.com Thu Apr 23 15:10:23 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 23 Apr 2020 12:10:23 -0700 Subject: [Elecraft] Quick Followup to my recent query In-Reply-To: References: Message-ID: <7C10FD07-3E84-451E-B19F-4DE6E7AD2681@yahoo.com> Hi carter It?s turned on and off via a menu and not a button. Page 20 of the KX2 manual covers it. If MENU:VOX MD is OFF (PTT, or push-to-talk mode), the transmitter must be enabled by tapping XMIT or by holding the mic?s PTT button. With VOX on, the VOX icon turns on, and transmit starts by speaking. If VOX is on, the remaining menu entries below should also be set up. Paul > On Apr 23, 2020, at 11:41 AM, Carter Craigie wrote: > > ?I DO see the VOX button on my KX3, so the question is only about my KX2 > rig, which has no VOX button. > > Sorry for the confusion. > > 73, > > Carter, N3AO > Blacksburg, VA > > -- > Carter, N3AO > Blacksburg, VA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Thu Apr 23 15:10:23 2020 From: w6png at yahoo.com (Paul Gacek) Date: Thu, 23 Apr 2020 12:10:23 -0700 Subject: [Elecraft] Quick Followup to my recent query In-Reply-To: References: Message-ID: <7C10FD07-3E84-451E-B19F-4DE6E7AD2681@yahoo.com> Hi carter It?s turned on and off via a menu and not a button. Page 20 of the KX2 manual covers it. If MENU:VOX MD is OFF (PTT, or push-to-talk mode), the transmitter must be enabled by tapping XMIT or by holding the mic?s PTT button. With VOX on, the VOX icon turns on, and transmit starts by speaking. If VOX is on, the remaining menu entries below should also be set up. Paul > On Apr 23, 2020, at 11:41 AM, Carter Craigie wrote: > > ?I DO see the VOX button on my KX3, so the question is only about my KX2 > rig, which has no VOX button. > > Sorry for the confusion. > > 73, > > Carter, N3AO > Blacksburg, VA > > -- > Carter, N3AO > Blacksburg, VA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 scholl at scholl.org Thu Apr 23 15:20:23 2020 From: scholl at scholl.org (cbscholl) Date: Thu, 23 Apr 2020 12:20:23 -0700 (MST) Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: References: Message-ID: <1587669623109-0.post@n2.nabble.com> I do not believe that I saw in any demonstrations but was any thought ever given to include traditional type meter faces rather than the horizontal meters used in the past elecraft products? Barney K3LA -- Sent from: http://elecraft.365791.n2.nabble.com/ From pincon at erols.com Thu Apr 23 15:22:01 2020 From: pincon at erols.com (Charlie T) Date: Thu, 23 Apr 2020 15:22:01 -0400 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: References: Message-ID: <002a01d619a4$7aa8c4a0$6ffa4de0$@erols.com> Also, you can buy multi-colored electrical tape at the typical home stores. I use that to color code antennas by band (s), polarity & directionality. The colors closest to the connector is/are the band or bands with the wrap farthest from the connector one of four possibilities: Beam Vertical, beam horizontal, omni-vertical or omni horizontal. And yes I often have to look at the chart of what means what, but then I know exactly what antenna feed I've got in my hand. 73, Charlie k3ICH From n6kr at elecraft.com Thu Apr 23 15:30:23 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 23 Apr 2020 12:30:23 -0700 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <1587669623109-0.post@n2.nabble.com> References: <1587669623109-0.post@n2.nabble.com> Message-ID: Simulation of traditional analog meters is possible, though not in the works at present. The advantage of the K4's present high-resolution bar graphs is especially apparent in transmit mode, where we simultaneously show forward power, SWR, ALC, and compression. We've found this to be extremely effective, and [speaking personally] it would be hard to go back to a single-parameter meter movement. That said, as with other wish-list items, we'll keep track of demand for this and could add it in the future. 73, Wayne N6KR > On Apr 23, 2020, at 12:20 PM, cbscholl wrote: > > I do not believe that I saw in any demonstrations but was any thought ever > given to include traditional type meter faces rather than the horizontal > meters used in the past elecraft products? > > 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 n6kr at elecraft.com From donwilh at embarqmail.com Thu Apr 23 15:33:02 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 23 Apr 2020 15:33:02 -0400 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: <7C306105-2E79-4678-AA2C-FE6C3B363088@gmail.com> References: <7C306105-2E79-4678-AA2C-FE6C3B363088@gmail.com> Message-ID: <99164976-cf8f-765b-78a5-2723b3eb89f7@embarqmail.com> Hello Carter, Every Heil headset that I know about has a mono microphone plug. If you plug it into the KX2 or KX3 mic jack, PTT will be activated unless you set MIC BTN to OFF - putting the radio into transmit. See the KX2 manual page 20 for SSB operation. For the KX2, VOX MD must be set ON in the menu, or you can use the XMIT instead (tap on and tap off). 73, Don W3FPR On 4/23/2020 2:18 PM, Carter Craigie wrote: > Thanks, Jim. I think I have tried turning the MIK BTN to Off, but I will try that again. > > Should doing that allow me to see ?VOX? on my screen? > > Thanks for the help. > > Carter, N3AO > From dave at nk7z.net Thu Apr 23 15:34:32 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 12:34:32 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding, question for K9YC. In-Reply-To: <0eeac63e-76f8-bc65-1e3f-8ea7dc55973d@audiosystemsgroup.com> References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> <185ea11b-7c13-8e82-5687-4bc47150818c@gmail.com> <0eeac63e-76f8-bc65-1e3f-8ea7dc55973d@audiosystemsgroup.com> Message-ID: <74dc2e06-404e-5125-d303-83d0d65caf85@nk7z.net> That explains it perfectly Jim, thanks!!! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 10:47 AM, Jim Brown wrote: > On 4/23/2020 7:23 AM, Dave Cole wrote: >> In looking at your slides, slide 105, (thanks for sharing the >> presentation BTW), it strikes me that the coax cable braid running >> between radio/amp/tuner/antenna panel, would act as a bonding >> connection, so I would not need to add a large wire between those >> items. ??Is this correct?? If not, why not? > > The difference shows up at audio frequencies and for lightning. Coax > between gear is usually longer than needed for bonding -- that is, > dedicated bonding conductors can be shorter, thus lower inductance and > resistance. See the slides that address audio buzz from power line > leakage currents. At AF (and for lightning), bonding is a band-aid for > Pin One Problems that is present in virtually all ham gear, computer > gear, and audio gear. > > 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 k8rgm at comcast.net Thu Apr 23 15:36:19 2020 From: k8rgm at comcast.net (ROBERT MUELLER) Date: Thu, 23 Apr 2020 15:36:19 -0400 (EDT) Subject: [Elecraft] unsuscribe Message-ID: <1477906444.919725.1587670579991@connect.xfinity.com> Please remove my email from your list. 73 R G Mueller, k8rgm email:k8rgm at comcast.net From rmcgraw at blomand.net Thu Apr 23 15:37:06 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Thu, 23 Apr 2020 14:37:06 -0500 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: <002a01d619a4$7aa8c4a0$6ffa4de0$@erols.com> References: <002a01d619a4$7aa8c4a0$6ffa4de0$@erols.com> Message-ID: I just label mine coax feeds with my P-Touch.? Just read what is on the label. 160M loop, 160M dipole,? 75M dipole, VHF/UHF vertical, 6M yagi.............. 73 Bob, K4TAX On 4/23/2020 2:22 PM, Charlie T wrote: > Also, you can buy multi-colored electrical tape at the typical home stores. > I use that to color code antennas by band (s), polarity & directionality. > The colors closest to the connector is/are the band or bands with the wrap > farthest from the connector one of four possibilities: > Beam Vertical, beam horizontal, omni-vertical or omni horizontal. > > And yes I often have to look at the chart of what means what, but then I > know exactly what antenna feed I've got in my hand. > > 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 rmcgraw at blomand.net > From scholl at scholl.org Thu Apr 23 15:38:27 2020 From: scholl at scholl.org (Chester B Scholl Jr) Date: Thu, 23 Apr 2020 15:38:27 -0400 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: References: <1587669623109-0.post@n2.nabble.com> Message-ID: <021001d619a6$c36e9c80$4a4bd580$@scholl.org> The question was more an understanding of the reasoning, which you answered, rather than a request, since other manufacturers include such faces. Just thinking, if auto makers included bar graphs they could fit more on a given screen but might take our eyes off the road longer. Enough of these thoughts. 73 Barney K3LA -----Original Message----- From: Wayne Burdick [mailto:n6kr at elecraft.com] Sent: Thursday, April 23, 2020 3:30 PM To: cbscholl Cc: Elecraft Reflector Subject: Re: [Elecraft] K4 S-meter characteristics Simulation of traditional analog meters is possible, though not in the works at present. The advantage of the K4's present high-resolution bar graphs is especially apparent in transmit mode, where we simultaneously show forward power, SWR, ALC, and compression. We've found this to be extremely effective, and [speaking personally] it would be hard to go back to a single-parameter meter movement. That said, as with other wish-list items, we'll keep track of demand for this and could add it in the future. 73, Wayne N6KR > On Apr 23, 2020, at 12:20 PM, cbscholl wrote: > > I do not believe that I saw in any demonstrations but was any thought > ever given to include traditional type meter faces rather than the > horizontal meters used in the past elecraft products? > > 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 > n6kr at elecraft.com From dave at nk7z.net Thu Apr 23 15:43:38 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 12:43:38 -0700 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: References: <002a01d619a4$7aa8c4a0$6ffa4de0$@erols.com> Message-ID: He is talking about jumpers on a patch panel, not the actual feeds from the antenna. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 12:37 PM, Bob McGraw K4TAX wrote: > I just label mine coax feeds with my P-Touch.? Just read what is on the > label. > > 160M loop, 160M dipole,? 75M dipole, VHF/UHF vertical, 6M > yagi.............. > > 73 > > Bob, K4TAX > > On 4/23/2020 2:22 PM, Charlie T wrote: >> Also, you can buy multi-colored electrical tape at the typical home >> stores. >> I use that to color code antennas by band (s), polarity & directionality. >> The colors closest to the connector is/are the band or bands with the >> wrap >> farthest from the connector one of four possibilities: >> Beam Vertical, beam horizontal, omni-vertical or omni horizontal. >> >> And yes I often have to look at the chart of what means what, but then I >> know exactly what antenna feed I've got in my hand. >> >> 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 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 jackbrindle at me.com Thu Apr 23 15:43:58 2020 From: jackbrindle at me.com (Jack Brindle) Date: Thu, 23 Apr 2020 12:43:58 -0700 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: References: <002a01d619a4$7aa8c4a0$6ffa4de0$@erols.com> Message-ID: <1B9635EB-029D-4A2A-A7DF-0A5A6C5A242D@me.com> That works great! Brother has wide tapes of various colors that wrap around the cable nicely. You can have text or images. Pretty cool! 73! Jack, W6FB > On Apr 23, 2020, at 12:37 PM, Bob McGraw K4TAX wrote: > > I just label mine coax feeds with my P-Touch. Just read what is on the label. > > 160M loop, 160M dipole, 75M dipole, VHF/UHF vertical, 6M yagi.............. > > 73 > > Bob, K4TAX > > On 4/23/2020 2:22 PM, Charlie T wrote: >> Also, you can buy multi-colored electrical tape at the typical home stores. >> I use that to color code antennas by band (s), polarity & directionality. >> The colors closest to the connector is/are the band or bands with the wrap >> farthest from the connector one of four possibilities: >> Beam Vertical, beam horizontal, omni-vertical or omni horizontal. >> >> And yes I often have to look at the chart of what means what, but then I >> know exactly what antenna feed I've got in my hand. >> >> 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 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 dave at nk7z.net Thu Apr 23 15:45:03 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 12:45:03 -0700 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: References: <002a01d619a4$7aa8c4a0$6ffa4de0$@erols.com> Message-ID: Never mind, you are correct... He was talking about the feeds. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 12:43 PM, Dave Cole wrote: > He is talking about jumpers on a patch panel, not the actual feeds from > the antenna. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/23/20 12:37 PM, Bob McGraw K4TAX wrote: >> I just label mine coax feeds with my P-Touch.? Just read what is on >> the label. >> >> 160M loop, 160M dipole,? 75M dipole, VHF/UHF vertical, 6M >> yagi.............. >> >> 73 >> >> Bob, K4TAX >> >> On 4/23/2020 2:22 PM, Charlie T wrote: >>> Also, you can buy multi-colored electrical tape at the typical home >>> stores. >>> I use that to color code antennas by band (s), polarity & >>> directionality. >>> The colors closest to the connector is/are the band or bands with the >>> wrap >>> farthest from the connector one of four possibilities: >>> Beam Vertical, beam horizontal, omni-vertical or omni horizontal. >>> >>> And yes I often have to look at the chart of what means what, but then I >>> know exactly what antenna feed I've got in my hand. >>> >>> 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 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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 vk3od at yahoo.com Thu Apr 23 16:26:47 2020 From: vk3od at yahoo.com (Charlie Delta) Date: Thu, 23 Apr 2020 20:26:47 +0000 (UTC) Subject: [Elecraft] K4 S-meter characteristics References: <1409581969.580028.1587673607902.ref@mail.yahoo.com> Message-ID: <1409581969.580028.1587673607902@mail.yahoo.com> Will the K4 have alternate S-meter scales since its direct sampling. Dbm, and Dbuv would be useful. Will the K4 have? better S-meter resolution or a menu option to set the dynamic range to give better indications of nulls or peaks? It would be nice to limit the range? in 2 scales S1 to S9 and then the normal 60db? above S-9. Will there? be a feature to allow the s-meter data to be accessed in linear manner to do antenna polar plots? It would be a shame to squander the potential of the K4 especially if the S-meter is linear? and accurate. I am sure the potential is endless being direct sampling? architecture and its? just a matter of priorities! I have? used a Perseus for a number of years and as a accurate measuring instrument it is indeed superb. It would be nice if the? K4 had this potential? inherent in the? design 73CraigVK3OD From ik6qon at gmail.com Thu Apr 23 16:46:45 2020 From: ik6qon at gmail.com (IK6QON Francesco) Date: Thu, 23 Apr 2020 22:46:45 +0200 Subject: [Elecraft] unsuscribe Message-ID: Please remove my email from your list. 73 Francesco IK6QON ik6qon at gmail.com -- 73's Francesco *IK6QON* From kzerocx at gmail.com Thu Apr 23 16:58:36 2020 From: kzerocx at gmail.com (Gary Peterson) Date: Thu, 23 Apr 2020 14:58:36 -0600 Subject: [Elecraft] Latest on the new home for my K3... Message-ID: I never rely on patch panels for bonding. They are simply, often a less expensive and more versatile substitute for coaxial switches. Unless one can afford several Bird, series 74 type coax switches, a patch panel is hard to beat for signal routing. The Bird series 74 switches have very good port to port isolation. So does a patch panel, if one uses good quality coax. I have long wondered how many hams have damaged the front end of a second receiver or transceiver, as a result of using coax switches with poor isolation. Many thanks to you, Jim, for all your time taken to educate folks with all the great material you have made available online and your frequent posts on this list. 73, Gary, K0CX >Patch panels are fine for signal routing (I also come out of broadcast), >but they cannot be relied upon for bonding because the bonding path is >FAR too long. Jim K9YC >>On 4/23/2020 8:38 AM, Gary Peterson wrote: >>I love patch panels. From n6kr at elecraft.com Thu Apr 23 17:37:05 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 23 Apr 2020 14:37:05 -0700 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <1409581969.580028.1587673607902@mail.yahoo.com> References: <1409581969.580028.1587673607902.ref@mail.yahoo.com> <1409581969.580028.1587673607902@mail.yahoo.com> Message-ID: <34781C30-BE58-40A2-B721-570C98A1FACD@elecraft.com> > On Apr 23, 2020, at 1:26 PM, Charlie Delta via Elecraft wrote: > > Will the K4 have alternate S-meter scales since its direct sampling. > Dbm, and Dbuv would be useful. It's calibrated at S9 = -73 dBm, with markings in dB above S9 and in S-units below S9, as with our other transceivers. > Will there be a feature to allow the s-meter data to be accessed in linear manner to do antenna polar plots? It would be a shame to squander the potential of the K4 especially if the S-meter is linear and accurate. > I am sure the potential is endless being direct sampling architecture and its just a matter of priorities! I have used a Perseus for a number of years and as a accurate measuring instrument it is indeed superb. It would be nice if the K4 had this potential inherent in the design Small matter of programming (and prioritizing the many requests like this we anticipate!). 73, Wayne N6KR From huntinhmb at coastside.net Thu Apr 23 17:44:32 2020 From: huntinhmb at coastside.net (Brian Hunt) Date: Thu, 23 Apr 2020 14:44:32 -0700 Subject: [Elecraft] Quick Followup to my recent query In-Reply-To: References: Message-ID: <3191FB81-7B8C-4DF7-899A-8AD83BFDBB05@coastside.net> I programmed one of my KX2 PF keys for VOX MD ON/OFF. Now it's 2. Button presses. 72, Brian, K0DTJ > On Apr 23, 2020, at 11:07, Carter Craigie wrote: > > I DO see the VOX button on my KX3, so the question is only about my KX2 > rig, which has no VOX button. > > Sorry for the confusion. > > 73, > > Carter, N3AO > Blacksburg, VA > > -- > Carter, N3AO > Blacksburg, VA > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 nr4c at widomaker.com Thu Apr 23 17:55:02 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 23 Apr 2020 17:55:02 -0400 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: <79BD13FD-7DAC-488D-A538-CB9025555DE1@gmail.com> References: <79BD13FD-7DAC-488D-A538-CB9025555DE1@gmail.com> Message-ID: If your Heil mic has a Dynamic element be sure and turn OFF the Bias. I?d like to see Heil market a headset with plugs for KX3/2 radios. Sent from my iPhone ...nr4c. bill > On Apr 23, 2020, at 2:43 PM, Carter Craigie wrote: > > ?Hi again, Jim! > > No joy, Jim, > > But many thanks for your suggestions. I set the Mic BTN to Off, and set the Mic BTN to On. > Perhaps some others may be able to help me. > 73, > Carter, N3AO > > Sent from my iPad > >> On Apr 23, 2020, at 2:12 PM, Jim Rhodes wrote: >> >> ? >> First thing is to turn the microphone buttons off. Am at work now. But it seems like the parameter comes up under "MIK BTTN" or something like that. You need to shut them all off, as well as the bias if not using an Icom/Heil Mike. Other choice is to buy or make a splitter and use a PTT switch. >> >>>> On Thu, Apr 23, 2020, 13:02 Carter Craigie wrote: >>> Hi Fellow Elecrafters, >>> >>> For the life of me I just cannot figure out how to set up VOX on my KX2 and >>> KX3. I cannot seem to get the VOX annunciation to show on my screen...at >>> all. So I need help with this first. >>> >>> Next I need to know the Menu settings for using a Heil Headset. Are the >>> settings the same for each rig?) >>> >>> I am mainly a CW op, but there are many occasions I?d like to use SSB. >>> >>> Thanks in advance for any help! >>> >>> 73, >>> >>> Carter, N3AO >>> Blacksburg, VA >>> >>> -- >>> Carter, N3AO >>> Blacksburg, VA >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 sm.shearer.01 at gmail.com Thu Apr 23 18:30:22 2020 From: sm.shearer.01 at gmail.com (stephen shearer) Date: Thu, 23 Apr 2020 18:30:22 -0400 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: References: <79BD13FD-7DAC-488D-A538-CB9025555DE1@gmail.com> Message-ID: They DO... http://www.dxstore.com/heil_acc.html?? (or HRO has them too)... AD-1KX3 Adapter for Elecraft KX3, 1/8in TRRS $21.95 an adapter, anyway. 73, Steve WB3LGC On 4/23/20 5:55 PM, Nr4c wrote: > If your Heil mic has a Dynamic element be sure and turn OFF the Bias. > *I?d like to see Heil market a headset with plugs for KX3/2 radios. * > > Sent from my iPhone > ...nr4c. bill From wunder at wunderwood.org Thu Apr 23 18:47:29 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Thu, 23 Apr 2020 15:47:29 -0700 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: References: <79BD13FD-7DAC-488D-A538-CB9025555DE1@gmail.com> Message-ID: <0C24A1A4-F256-4489-9A52-50FB4FB687E8@wunderwood.org> I?m sure that is a nice cable, but if you just want to plug a 1/8 inch mic plug into the KX3, an off-the-shelf $6 stereo to mono splitter will do the same job. I figured that out while drawing out the schematic for an adapter box. Details here: https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 23, 2020, at 3:30 PM, stephen shearer wrote: > > They DO... http://www.dxstore.com/heil_acc.html (or HRO has them too)... > > AD-1KX3 Adapter for Elecraft KX3, 1/8in TRRS $21.95 > > > an adapter, anyway. > > 73, Steve WB3LGC > > On 4/23/20 5:55 PM, Nr4c wrote: >> If your Heil mic has a Dynamic element be sure and turn OFF the Bias. >> *I?d like to see Heil market a headset with plugs for KX3/2 radios. * >> >> 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 wunder at wunderwood.org From sm.shearer.01 at gmail.com Thu Apr 23 19:09:31 2020 From: sm.shearer.01 at gmail.com (stephen shearer) Date: Thu, 23 Apr 2020 19:09:31 -0400 Subject: [Elecraft] VOX on KX, using a Heil headset Questions In-Reply-To: <0C24A1A4-F256-4489-9A52-50FB4FB687E8@wunderwood.org> References: <79BD13FD-7DAC-488D-A538-CB9025555DE1@gmail.com> <0C24A1A4-F256-4489-9A52-50FB4FB687E8@wunderwood.org> Message-ID: <7ff8a28e-8098-af8b-4b4c-50e1b2d797c4@gmail.com> Agree...? the adapter has a PTT input.? I was planning on making a "box", the adapter is easier.? and yes, VOX works and have used cheap headset/VOX and have used HC4 Heil headset/VOX too.? PTT has advantage of not TXing when you don't want... I tried the splitter cable (I may have gotten the wrong one) it didn't work and I never got to "ringing" out the cable to see why it didn't work... (I don't like Heil's choice of a 1/4" PTT connector - would rather see RCA for mix-up proofing) steve On 4/23/20 6:47 PM, Walter Underwood wrote: > I?m sure that is a nice cable, but if you just want to plug a 1/8 inch mic plug into the KX3, an off-the-shelf $6 stereo to mono splitter will do the same job. I figured that out while drawing out the schematic for an adapter box. Details here: > > https://observer.wunderwood.org/2015/08/16/yamaha-cm500-headset-with-ptt-on-elecraft-kx3/ > > wunder > K6WRU > Walter Underwood > CM87wj > http://observer.wunderwood.org/ (my blog) > >> On Apr 23, 2020, at 3:30 PM, stephen shearer wrote: >> >> They DO... http://www.dxstore.com/heil_acc.html (or HRO has them too)... >> >> AD-1KX3 Adapter for Elecraft KX3, 1/8in TRRS $21.95 >> >> >> an adapter, anyway. >> >> 73, Steve WB3LGC >> >> On 4/23/20 5:55 PM, Nr4c wrote: >>> If your Heil mic has a Dynamic element be sure and turn OFF the Bias. >>> *I?d like to see Heil market a headset with plugs for KX3/2 radios. * >>> >>> 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 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 sm.shearer.01 at gmail.com From jc_ki7y at q.com Thu Apr 23 19:51:33 2020 From: jc_ki7y at q.com (Jim Cassidy) Date: Thu, 23 Apr 2020 19:51:33 -0400 (EDT) Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: References: <002a01d619a4$7aa8c4a0$6ffa4de0$@erols.com> Message-ID: <1897532201.255238755.1587685893807.JavaMail.zimbra@q.com> I found several years ago that Brother makes different adhesive level labels. After labeling a lot of cables many of them were falling off after a few hours. The better quality adhesive does not fail. ----- Original Message ----- From: "Bob McGraw K4TAX" To: "Elecraft" Sent: Thursday, April 23, 2020 12:37:06 PM Subject: Re: [Elecraft] Latest on the new home for my K3... I just label mine coax feeds with my P-Touch.? Just read what is on the label. 160M loop, 160M dipole,? 75M dipole, VHF/UHF vertical, 6M yagi.............. 73 Bob, K4TAX On 4/23/2020 2:22 PM, Charlie T wrote: > Also, you can buy multi-colored electrical tape at the typical home stores. > I use that to color code antennas by band (s), polarity & directionality. > The colors closest to the connector is/are the band or bands with the wrap > farthest from the connector one of four possibilities: > Beam Vertical, beam horizontal, omni-vertical or omni horizontal. > > And yes I often have to look at the chart of what means what, but then I > know exactly what antenna feed I've got in my hand. > > 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 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 jc_ki7y at q.com From dave at nk7z.net Thu Apr 23 19:53:09 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 23 Apr 2020 16:53:09 -0700 Subject: [Elecraft] Latest on the new home for my K3... In-Reply-To: <1897532201.255238755.1587685893807.JavaMail.zimbra@q.com> References: <002a01d619a4$7aa8c4a0$6ffa4de0$@erols.com> <1897532201.255238755.1587685893807.JavaMail.zimbra@q.com> Message-ID: <0d81ce5a-13fb-65f1-229c-9eb3ec686f88@nk7z.net> I put on a cheap Brothers label, and then heat shrink clear 3:1 on it. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/23/20 4:51 PM, Jim Cassidy wrote: > I found several years ago that Brother makes different adhesive level labels. After labeling a lot of cables many of them were falling off after a few hours. The better quality adhesive does not fail. > > ----- Original Message ----- > From: "Bob McGraw K4TAX" > To: "Elecraft" > Sent: Thursday, April 23, 2020 12:37:06 PM > Subject: Re: [Elecraft] Latest on the new home for my K3... > > I just label mine coax feeds with my P-Touch.? Just read what is on the > label. > > 160M loop, 160M dipole,? 75M dipole, VHF/UHF vertical, 6M yagi.............. > > 73 > > Bob, K4TAX > > On 4/23/2020 2:22 PM, Charlie T wrote: >> Also, you can buy multi-colored electrical tape at the typical home stores. >> I use that to color code antennas by band (s), polarity & directionality. >> The colors closest to the connector is/are the band or bands with the wrap >> farthest from the connector one of four possibilities: >> Beam Vertical, beam horizontal, omni-vertical or omni horizontal. >> >> And yes I often have to look at the chart of what means what, but then I >> know exactly what antenna feed I've got in my hand. >> >> 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 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 jc_ki7y at q.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 RichLentz at cox.net Thu Apr 23 19:58:49 2020 From: RichLentz at cox.net (Rich) Date: Thu, 23 Apr 2020 16:58:49 -0700 (MST) Subject: [Elecraft] [K3] Setup K3 with RigExpert and HRD Message-ID: <1587686329945-0.post@n2.nabble.com> I have spent the last week setting up HRD with RigExpert on my K3. After upgrading to the newest version of windows 10 my antique USB to Serial adapters no longer work. So I got a Rig Blaster. I would GREATLY appreciate help from anyone that has gone through this maze. Thanks Rich Lentz, KE0X -- Sent from: http://elecraft.365791.n2.nabble.com/ From k2te at juno.com Thu Apr 23 20:13:24 2020 From: k2te at juno.com (k2te at juno.com) Date: Fri, 24 Apr 2020 00:13:24 +0000 Subject: [Elecraft] K3 ALC Behavior When Using WSJT-X Message-ID: I recently had to install a soundcard dongle when my internal card went TU. When operating WSJT-X, I notice that the ALC runs the 4-bar solid/5th-bar flicker normal operation during the transmit cycle. At the end of the cycle it jumps to 6 or 7 bars before the receive cycle starts. This does not seem to affect the K3 when running barefoot; however, when using the KPA500, the output spikes almost to 700W at times before the switchover. Any suggestions where to point the finger? 73 de Ed ____________________________________________________________ Sponsored by https://www.newser.com/?utm_source=part&utm_medium=uol&utm_campaign=rss_taglines_more House Approves $484B More for Small Businesses, Testing http://thirdpartyoffers.juno.com/TGL3141/5ea22f78512af2f787461st01vuc1 50K Students to Get Tablets, Broadband http://thirdpartyoffers.juno.com/TGL3141/5ea22f787390f2f787461st01vuc2 Tests Suggest 1 in 5 NYC Residents Had Virus http://thirdpartyoffers.juno.com/TGL3141/5ea22f7895f142f787461st01vuc3 From randyn1kwf at gmail.com Thu Apr 23 20:19:05 2020 From: randyn1kwf at gmail.com (Randy Lake) Date: Thu, 23 Apr 2020 20:19:05 -0400 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> Message-ID: Ok. I am sure I will get the wrath of God for going in this direction but here we go. I was licensed in 91 and have put together 2 average so contest stations with no grounds. None what so ever except power grounds. I have a bunch of equipment, not intentionally interconnected, that has had no issue in all that time. If I had seen something that led me to fix an issue I certainly would have. Safety ? Maybe. I am just not sure that the thousands of dollars that could be put into this type of grounding is necessary, in my part of the world. So, no grounds on lugs of any equipment, no grounds on tower (100') no grounding of coax. Aside lightning strikes, which I have had and not issue, what can I gain from spending the $$$ ? If someone can convince me I will consider. Randy N1KWF On Thu, Apr 23, 2020 at 8:38 AM Randy Farmer wrote: > I'm currently in the process of wiring up my new station and I happen to > be working on the equipment bonding phase for my pair of K3s SO2R > station. I'm doing my best to get decent connectivity between the > station components, but can't really figure out how to terminate large > (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, > especially since something like six bond wires need to be attached to > the transceivers. There appear to be no available ring terminals that > will fit these small screws; the smallest I can find are for #10 studs. > Even by using a threaded standoff installed in the K3 ground nut and a > longer screw to stand the rings off, stacking a bunch of these huge > terminals is extremely difficult. Providing some means of reasonably > quick disconnect for servicing purposes is equally difficult. Exactly > how can I go about connecting big wires to little ground posts? > > 73... > Randy, W8FN > > On 4/20/2020 10:22 PM, Jim Brown wrote: > > On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: > >> I'm asking what method and > >> attachment point, to each piece of equipment, you experienced K-Line > >> owners > >> use to bond the K3s, P3, SP3, etc. and then on to the station ground. > > > > I use wires soldered to screw lugs, making sure that the attachment > > point is not insulated from the chassis by paint. Some of the > > equipment has a dedicated grounding screw. Shells of DB connectors > > SHOULD be bonded to the equipment chassis, but not always -- some mfrs > > screw up and fail to do that. > > > > Some of my equipment goes out in the field from time to time, so I use > > single circuit Power Pole connectors to make that easy. I'll use 2-6" > > between the lug and the PowerPole, then make a loop soldered to a > > PowerPoles that connect to each piece of gear in the string (so each > > connector has two wires). There are lots of suitable variations on > > this, depending on how the shack is laid out. > > > > These are the slides for my talks on station power, grounding, and > > bonding. http://k9yc.com/GroundingAndAudio.pdf > > > > 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 w8fn at windstream.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 randyn1kwf at gmail.com > -- Randy Lake N1KWF 73 Gunn Rd. Keene,NH From randyn1kwf at gmail.com Thu Apr 23 20:19:54 2020 From: randyn1kwf at gmail.com (Randy Lake) Date: Thu, 23 Apr 2020 20:19:54 -0400 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: <72829235-e255-a6ec-08ce-6b119121c0d1@nk7z.net> References: <9fbbdc23-a25d-f9c6-a310-9dd2cf27141d@audiosystemsgroup.com> <72829235-e255-a6ec-08ce-6b119121c0d1@nk7z.net> Message-ID: Oh yes, I have a K3/P3 Randy N1KWF On Thu, Apr 23, 2020 at 8:53 AM Dave Cole wrote: > Hi Randy, > > I rebuilt my shack six years ago, and documented a bit of that. One > part was connecting grounds to the back of the rigs. See: > > https://www.nk7z.net/rebuilding-the-shack/ > > Look at a few of the photos. One shows a large copper ring terminal, > which will fit a K3, etc., and how it was connected to 3/4 inch braid. > > Basically I folded the braid, inserted it and some solder cut to length > into the ring terminal solder bucket. I then held it in place with a > set of pliers, and hit the ring terminal with a Burns-O-Matic torch. > You can see the jig I had set up on the top of the glass jar. > > Yes... I know grounds are not supposed to be soldered... > > I am sure there are better ways... This is just what I did. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/23/20 5:37 AM, Randy Farmer wrote: > > I'm currently in the process of wiring up my new station and I happen to > > be working on the equipment bonding phase for my pair of K3s SO2R > > station. I'm doing my best to get decent connectivity between the > > station components, but can't really figure out how to terminate large > > (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, > > especially since something like six bond wires need to be attached to > > the transceivers. There appear to be no available ring terminals that > > will fit these small screws; the smallest I can find are for #10 studs. > > Even by using a threaded standoff installed in the K3 ground nut and a > > longer screw to stand the rings off, stacking a bunch of these huge > > terminals is extremely difficult. Providing some means of reasonably > > quick disconnect for servicing purposes is equally difficult. Exactly > > how can I go about connecting big wires to little ground posts? > > > > 73... > > Randy, W8FN > > > > On 4/20/2020 10:22 PM, Jim Brown wrote: > >> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: > >>> I'm asking what method and > >>> attachment point, to each piece of equipment, you experienced K-Line > >>> owners > >>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. > >> > >> I use wires soldered to screw lugs, making sure that the attachment > >> point is not insulated from the chassis by paint. Some of the > >> equipment has a dedicated grounding screw. Shells of DB connectors > >> SHOULD be bonded to the equipment chassis, but not always -- some mfrs > >> screw up and fail to do that. > >> > >> Some of my equipment goes out in the field from time to time, so I use > >> single circuit Power Pole connectors to make that easy. I'll use 2-6" > >> between the lug and the PowerPole, then make a loop soldered to a > >> PowerPoles that connect to each piece of gear in the string (so each > >> connector has two wires). There are lots of suitable variations on > >> this, depending on how the shack is laid out. > >> > >> These are the slides for my talks on station power, grounding, and > >> bonding. http://k9yc.com/GroundingAndAudio.pdf > >> > >> 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 w8fn at windstream.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 randyn1kwf at gmail.com > -- Randy Lake N1KWF 73 Gunn Rd. Keene,NH From rocketnj at gmail.com Thu Apr 23 20:29:14 2020 From: rocketnj at gmail.com (Dave) Date: Thu, 23 Apr 2020 20:29:14 -0400 Subject: [Elecraft] K3 ALC Behavior When Using WSJT-X In-Reply-To: References: Message-ID: <776DDB22-C6A7-4161-A754-1AC317534B37@gmail.com> I went through a similar problem with a friend who is running an Icom 7700. Set the power out on the K3 to 10 watts. Key up in RTTY and verify 10 watts out. Now lower the USB data out on the K3 and then click tune in WSJT-X. You want to adjust the USB data out to where the radio just reaches 10 watts out. Any higher and you risk experiencing ALC overshoot and a distorted WSJT-X signal. On my friend?s Icom this was the point right before the ALC started to give any indication. Sorry I do not have a K3. Others may chime in and offer advice but this will ensure you are not overdriving. Dave wo2x Sent from my waxed string and tin cans. > On Apr 23, 2020, at 8:17 PM, k2te at juno.com wrote: > > ?I recently had to install a soundcard dongle when my internal card went > TU. When operating WSJT-X, I notice that the ALC runs the 4-bar > solid/5th-bar flicker normal operation during the transmit cycle. At the > end of the cycle it jumps to 6 or 7 bars before the receive cycle starts. > This does not seem to affect the K3 when running barefoot; however, when > using the KPA500, the output spikes almost to 700W at times before the > switchover. > > Any suggestions where to point the finger? > > 73 de Ed > > ____________________________________________________________ > Sponsored by https://www.newser.com/?utm_source=part&utm_medium=uol&utm_campaign=rss_taglines_more > > House Approves $484B More for Small Businesses, Testing > http://thirdpartyoffers.juno.com/TGL3141/5ea22f78512af2f787461st01vuc1 > 50K Students to Get Tablets, Broadband > http://thirdpartyoffers.juno.com/TGL3141/5ea22f787390f2f787461st01vuc2 > Tests Suggest 1 in 5 NYC Residents Had Virus > http://thirdpartyoffers.juno.com/TGL3141/5ea22f7895f142f787461st01vuc3 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 frantz at pwpconsult.com Thu Apr 23 20:39:29 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Thu, 23 Apr 2020 20:39:29 -0400 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: Message-ID: I changed the ring terminals on my grounding system to spade lugs for ease of removal. 73 Bill AE6JV On 4/23/20 at 10:27 AM, n4zr at comcast.net (N4ZR) wrote: >I think the answer lies in the ground bus.? I used a 3/4" >copper water pipe along the back edge of my desk, with a short >pigtail of #2 wire to the K3.? I used a yellow-jacketed Home >Depot ring terminal on both ends of the #2, and metal-tapping >screws to connect to the bus. ------------------------------------------------------------------------- Bill Frantz | When it comes to the world | Periwinkle (408)348-7900 | around us, is there any choice | 150 Rivermead Rd #235 www.pwpconsult.com | but to explore? - Lisa Randall | Peterborough, NH 03458 From n6tv at arrl.net Thu Apr 23 21:37:53 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Thu, 23 Apr 2020 18:37:53 -0700 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: References: Message-ID: On Thu, Apr 23, 2020 at 10:01 AM Wayne Burdick wrote: > The two S-meters are calibrated at S9 = -73 dBm (50 uV). Will the K4 S-meter be calibrated at *6 dB per S-unit* as per the ITU Recommendation , or 5 dB per S-unit, like the K3? FYI, the P3 uses 6 dB per S-unit. I hope the K4 will also use 6 dB, even if it means "breaking tradition" with the legendary K3. 73, Bob, N6TV From alorona at sbcglobal.net Fri Apr 24 00:31:49 2020 From: alorona at sbcglobal.net (Al Lorona) Date: Fri, 24 Apr 2020 04:31:49 +0000 (UTC) Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <1409581969.580028.1587673607902@mail.yahoo.com> References: <1409581969.580028.1587673607902.ref@mail.yahoo.com> <1409581969.580028.1587673607902@mail.yahoo.com> Message-ID: <2108893772.33428.1587702709554@mail.yahoo.com> Now that the K4 has exact knowledge of its gains and losses through the preamps, attenuators, splitters, bandpass filters and so forth, could this enable an alternate way of visualizing the receiver's range? This alternate measurement would be quite useful in setting the controls optimally for any situation. Imagine a scale -- I suppose it would be in dBm -- showing the K4's total dynamic range. Say it's 100 dB in total. The lowest point is the minimum discernable signal (MDS); the highest point is the damage level, or if that's a bit too frightening, call it the maximum ADC level or something else to denote it as a Level Not To Be Exceeded. Since the K4 will know not only what the noise floor of the band you're listening to is, but the absolute value of that level in dBm, the scale can be annotated with a dynamic marker to show where the band noise falls in that 100 dB range. I'm calling it 'dynamic' because it'll vary a few dB as band noise does, but it will sit at a calibrated level, relatively motionless on the scale as Wayne described the S-meter doing. As the operator kicks in more gain by turning on preamps or turning up the RF Gain, the scale shifts downward by the same amount. For instance, if the scale was showing -120 to -20 dBm -- a 100 dB range -- and then the operator turns on a 10 dB preamp, the scale must change to -130 to -30 dBm, because the preamp has made the receiver more sensitive while also reducing the max permissible level. Conversely, if the operator turned on 10 dB of attenuation, then the scale would shift upward to -110 to -10 dBm, indicating clearly that sensitivity is being sacrificed for greater large signal handling capability. The noise floor, being a relative constant, would move closer to the bottom of the window, or rather, the window would move relative to the noise floor in such a way as to place it 10 dB closer to the bottom end. So actually, as I'm thinking about this, the meter wouldn't move at all. It's the noise marker that would float higher and lower within the window as you varied the controls, just as on an S-meter. I guess what I'm describing here is more or less an S-meter calibrated in dBm! But perhaps the best reason for looking at the receiver this way would be to tune the controls precisely for a given noise floor. Twenty meters, with its -120 dBm noise floor, will require one combination of preamps and/or attenuators. On 80 meters, if the noise is, say, -100 dBm, the operator knows (because he can see the graphic) exactly how much attenuation is acceptable while still keeping the band noise marker in the operating range. It would behoove the operator to keep the noise floor marker near the bottom to 1) give him the maximum dynamic range under those conditions, and 2) to avoid becoming "my K4 is noisy" guy. Presumably, as each K4 goes through RF calibration at the factory it will know exactly the gain of each preamp, attenuator, filter, and splitter in its path. The scale could be custom for each individual unit, although I wouldn't want to start any "my K4 is more sensitive than yours" wars. I leave it to the programmers to decide on the specific eye candy of such a readout. I for one would find this type of meter fun and useful in getting a mental picture of where in dynamic range space the receiver is sitting. Can anybody see any flaws in this idea? I can foresee at least one. I don't know how the front end of the K4 will work, but if it is constantly moving the receiver range in response to what it hears, that is, in response to the total amount of power incident on its antenna port, then perhaps that might pose a real challenge to giving this type of feedback to the user. I don't know. Al? W6LX From k2vco.vic at gmail.com Fri Apr 24 01:44:15 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Fri, 24 Apr 2020 08:44:15 +0300 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: References: Message-ID: <5E1AEFD4-3088-4FBA-9D12-7980BA052945@gmail.com> The problems of hum and RF pickup are reduced by simply connecting all the equipment chassis together with low inductance conductors. It?s a safety feature as well, providing a backup to the power cables? ground conductor, and ensuring that disconnecting a coax jumper won?t suddenly put you in the path of an unexpected current. That doesn?t cost thousands and is at most a few hours of work. Serious lightning protection is something else, and can be very expensive. But although bonding the equipment won?t protect you against direct lightning strikes, it does help to keep everything at the same potential and reduce the possibility of damage from less violent static discharges. Victor 4X6GP > On 24 Apr 2020, at 3:19, Randy Lake wrote: > > ?Ok. I am sure I will get the wrath of God for going in this direction but > here we go. I was licensed in 91 and have put together 2 average so contest > stations with no grounds. None what so ever except power grounds. I have a > bunch of equipment, not intentionally interconnected, that has had no issue > in all that time. If I had seen something that led me to fix an issue I > certainly would have. Safety ? Maybe. I am just not sure that the thousands > of dollars that could be put into this type of grounding is necessary, in > my part of the world. > So, no grounds on lugs of any equipment, no grounds on tower (100') no > grounding of coax. Aside lightning strikes, which I have had and not issue, > what can I gain from spending the $$$ ? > If someone can convince me I will consider. > > Randy N1KWF > >> On Thu, Apr 23, 2020 at 8:38 AM Randy Farmer wrote: >> >> I'm currently in the process of wiring up my new station and I happen to >> be working on the equipment bonding phase for my pair of K3s SO2R >> station. I'm doing my best to get decent connectivity between the >> station components, but can't really figure out how to terminate large >> (AWG 10) wire to the teeny 6-32 ground screws on the back of the K3, >> especially since something like six bond wires need to be attached to >> the transceivers. There appear to be no available ring terminals that >> will fit these small screws; the smallest I can find are for #10 studs. >> Even by using a threaded standoff installed in the K3 ground nut and a >> longer screw to stand the rings off, stacking a bunch of these huge >> terminals is extremely difficult. Providing some means of reasonably >> quick disconnect for servicing purposes is equally difficult. Exactly >> how can I go about connecting big wires to little ground posts? >> >> 73... >> Randy, W8FN >> >>> On 4/20/2020 10:22 PM, Jim Brown wrote: >>> On 4/20/2020 6:08 PM, Tom Norris NB5Q wrote: >>>> I'm asking what method and >>>> attachment point, to each piece of equipment, you experienced K-Line >>>> owners >>>> use to bond the K3s, P3, SP3, etc. and then on to the station ground. >>> >>> I use wires soldered to screw lugs, making sure that the attachment >>> point is not insulated from the chassis by paint. Some of the >>> equipment has a dedicated grounding screw. Shells of DB connectors >>> SHOULD be bonded to the equipment chassis, but not always -- some mfrs >>> screw up and fail to do that. >>> >>> Some of my equipment goes out in the field from time to time, so I use >>> single circuit Power Pole connectors to make that easy. I'll use 2-6" >>> between the lug and the PowerPole, then make a loop soldered to a >>> PowerPoles that connect to each piece of gear in the string (so each >>> connector has two wires). There are lots of suitable variations on >>> this, depending on how the shack is laid out. >>> >>> These are the slides for my talks on station power, grounding, and >>> bonding. http://k9yc.com/GroundingAndAudio.pdf >>> >>> 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 w8fn at windstream.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 randyn1kwf at gmail.com >> > > > -- > Randy Lake N1KWF > 73 Gunn Rd. > Keene,NH > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com Fri Apr 24 02:18:53 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Thu, 23 Apr 2020 23:18:53 -0700 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: <5E1AEFD4-3088-4FBA-9D12-7980BA052945@gmail.com> References: <5E1AEFD4-3088-4FBA-9D12-7980BA052945@gmail.com> Message-ID: And in the meantime, lightning protection helps to reduce the noise and risks of 'everyday' static noise sources like wind, snow, blowing dust and even rain static.? HELPS, not removes. Having (last fall) just installed a basic dissipation system, the difference can be quite startling and can allow one to hear a LOT better.? My noise floor also dropped from 10-35 dB with an average of 20 dB the moment I tied it into the existing house safety grounds.? And that was not only increased safety but was cheaper than most low band reception arrays (which I'll add as well). 'New' DX; SCORE! Just as any other station feature, one can continue to enhance or upgrade lightning protection and bonding over time until there is less return than cost expended. One more often forgotten note:? ALL wiring coming into a building, must be bonded to the common safety ground; satellite dishes, telephone/DSL wires, cable TV... ALL of them or lightning will 'find a way' to ruin your day. Rick NK7I On 4/23/2020 10:44 PM, Vic Rosenthal wrote: > Serious lightning protection is something else, and can be very expensive. But although bonding the equipment won?t protect you against direct lightning strikes, it does help to keep everything at the same potential and reduce the possibility of damage from less violent static discharges. > > Victor 4X6GP > From jstengrevics at comcast.net Fri Apr 24 07:09:26 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Fri, 24 Apr 2020 07:09:26 -0400 Subject: [Elecraft] Elecraft K3s, etc. bonding In-Reply-To: References: <5E1AEFD4-3088-4FBA-9D12-7980BA052945@gmail.com> Message-ID: <15CE0611-6337-4AF6-B067-19F42E284051@comcast.net> My tower grounds are my house grounds. All hardline is separately grounded though individual rods and tied to the house ground. My transceiver is tied to the house ground. I seriously doubt tying other equipment to that ground will reduce noise levels at all, not to speak of the difficulty of trying to tie my laptop to same. I operate primarily 6 meters. To confirm this, I have recently used a portable spectrum analyzer with a near field antenna to look for noise sources in the house. Not only does my equipment produce no noise, nothing else in the house does either. John WA1EAZ > On Apr 24, 2020, at 2:18 AM, Rick Bates, NK7I wrote: > > And in the meantime, lightning protection helps to reduce the noise and risks of 'everyday' static noise sources like wind, snow, blowing dust and even rain static. HELPS, not removes. > > Having (last fall) just installed a basic dissipation system, the difference can be quite startling and can allow one to hear a LOT better. My noise floor also dropped from 10-35 dB with an average of 20 dB the moment I tied it into the existing house safety grounds. And that was not only increased safety but was cheaper than most low band reception arrays (which I'll add as well). 'New' DX; SCORE! > > Just as any other station feature, one can continue to enhance or upgrade lightning protection and bonding over time until there is less return than cost expended. > > One more often forgotten note: ALL wiring coming into a building, must be bonded to the common safety ground; satellite dishes, telephone/DSL wires, cable TV... ALL of them or lightning will 'find a way' to ruin your day. > > Rick NK7I > > > On 4/23/2020 10:44 PM, Vic Rosenthal wrote: >> Serious lightning protection is something else, and can be very expensive. But although bonding the equipment won?t protect you against direct lightning strikes, it does help to keep everything at the same potential and reduce the possibility of damage from less violent static discharges. >> >> Victor 4X6GP >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 mbaileycrna at gmail.com Fri Apr 24 07:43:45 2020 From: mbaileycrna at gmail.com (Morgan Bailey) Date: Fri, 24 Apr 2020 06:43:45 -0500 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <2108893772.33428.1587702709554@mail.yahoo.com> References: <1409581969.580028.1587673607902.ref@mail.yahoo.com> <1409581969.580028.1587673607902@mail.yahoo.com> <2108893772.33428.1587702709554@mail.yahoo.com> Message-ID: Maybe it is just me but, Turn the radio on, adjust the audio/rf/agc controls, hear the station, work him, move on. I dont need a fancy dbm or an iconic number of engineering controls, to say what the dbm was when I worked the guy. When you contest, who the hell cares, hear him, work him, move on. In simple terms, I just want selectivity, and no agc pumping and no front in desensing from a 40 db over nine station 2khz away. Im looking forward to a quiet front end, that keeps me from having to listen to 48 hours of static that is generated by the stages with in the radio. Love my K3S, great radio. Simple to operate once you learn its controls and never has failed me. Looking forward to K4 delivery. Vy 73, Morgan Bailey NJ8M On Thu, Apr 23, 2020 at 11:33 PM Al Lorona wrote: > Now that the K4 has exact knowledge of its gains and losses through the > preamps, attenuators, splitters, bandpass filters and so forth, could this > enable an alternate way of visualizing the receiver's range? This alternate > measurement would be quite useful in setting the controls optimally for any > situation. > > Imagine a scale -- I suppose it would be in dBm -- showing the K4's total > dynamic range. Say it's 100 dB in total. The lowest point is the minimum > discernable signal (MDS); the highest point is the damage level, or if > that's a bit too frightening, call it the maximum ADC level or something > else to denote it as a Level Not To Be Exceeded. > > Since the K4 will know not only what the noise floor of the band you're > listening to is, but the absolute value of that level in dBm, the scale can > be annotated with a dynamic marker to show where the band noise falls in > that 100 dB range. I'm calling it 'dynamic' because it'll vary a few dB as > band noise does, but it will sit at a calibrated level, relatively > motionless on the scale as Wayne described the S-meter doing. > > As the operator kicks in more gain by turning on preamps or turning up the > RF Gain, the scale shifts downward by the same amount. For instance, if the > scale was showing -120 to -20 dBm -- a 100 dB range -- and then the > operator turns on a 10 dB preamp, the scale must change to -130 to -30 dBm, > because the preamp has made the receiver more sensitive while also reducing > the max permissible level. > > Conversely, if the operator turned on 10 dB of attenuation, then the scale > would shift upward to -110 to -10 dBm, indicating clearly that sensitivity > is being sacrificed for greater large signal handling capability. The noise > floor, being a relative constant, would move closer to the bottom of the > window, or rather, the window would move relative to the noise floor in > such a way as to place it 10 dB closer to the bottom end. > > So actually, as I'm thinking about this, the meter wouldn't move at all. > It's the noise marker that would float higher and lower within the window > as you varied the controls, just as on an S-meter. I guess what I'm > describing here is more or less an S-meter calibrated in dBm! > > But perhaps the best reason for looking at the receiver this way would be > to tune the controls precisely for a given noise floor. Twenty meters, with > its -120 dBm noise floor, will require one combination of preamps and/or > attenuators. On 80 meters, if the noise is, say, -100 dBm, the operator > knows (because he can see the graphic) exactly how much attenuation is > acceptable while still keeping the band noise marker in the operating > range. It would behoove the operator to keep the noise floor marker near > the bottom to 1) give him the maximum dynamic range under those conditions, > and 2) to avoid becoming "my K4 is noisy" guy. > > Presumably, as each K4 goes through RF calibration at the factory it will > know exactly the gain of each preamp, attenuator, filter, and splitter in > its path. The scale could be custom for each individual unit, although I > wouldn't want to start any "my K4 is more sensitive than yours" wars. > > I leave it to the programmers to decide on the specific eye candy of such > a readout. I for one would find this type of meter fun and useful in > getting a mental picture of where in dynamic range space the receiver is > sitting. > > Can anybody see any flaws in this idea? I can foresee at least one. I > don't know how the front end of the K4 will work, but if it is constantly > moving the receiver range in response to what it hears, that is, in > response to the total amount of power incident on its antenna port, then > perhaps that might pose a real challenge to giving this type of feedback to > the user. I don't know. > > Al W6LX > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jstengrevics at comcast.net Fri Apr 24 07:48:58 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Fri, 24 Apr 2020 07:48:58 -0400 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: References: <1409581969.580028.1587673607902.ref@mail.yahoo.com> <1409581969.580028.1587673607902@mail.yahoo.com> <2108893772.33428.1587702709554@mail.yahoo.com> Message-ID: <7373A874-0E11-493C-B404-4315EF3AF39E@comcast.net> Agree completely. I find all S meters to be totally inaccurate and next to useless, including my K3S?. > On Apr 24, 2020, at 7:43 AM, Morgan Bailey wrote: > > Maybe it is just me but, Turn the radio on, adjust the audio/rf/agc > controls, hear the station, work him, move on. I dont need a fancy dbm or > an iconic number of engineering controls, to say what the dbm was when I > worked the guy. When you contest, who the hell cares, hear him, work him, > move on. In simple terms, I just want selectivity, and no agc pumping and > no front in desensing from a 40 db over nine station 2khz away. > > Im looking forward to a quiet front end, that keeps me from having to > listen to 48 hours of static that is generated by the stages with in the > radio. Love my K3S, great radio. Simple to operate once you learn its > controls and never has failed me. > > Looking forward to K4 delivery. > > Vy 73, > Morgan Bailey NJ8M > > > > On Thu, Apr 23, 2020 at 11:33 PM Al Lorona wrote: > >> Now that the K4 has exact knowledge of its gains and losses through the >> preamps, attenuators, splitters, bandpass filters and so forth, could this >> enable an alternate way of visualizing the receiver's range? This alternate >> measurement would be quite useful in setting the controls optimally for any >> situation. >> >> Imagine a scale -- I suppose it would be in dBm -- showing the K4's total >> dynamic range. Say it's 100 dB in total. The lowest point is the minimum >> discernable signal (MDS); the highest point is the damage level, or if >> that's a bit too frightening, call it the maximum ADC level or something >> else to denote it as a Level Not To Be Exceeded. >> >> Since the K4 will know not only what the noise floor of the band you're >> listening to is, but the absolute value of that level in dBm, the scale can >> be annotated with a dynamic marker to show where the band noise falls in >> that 100 dB range. I'm calling it 'dynamic' because it'll vary a few dB as >> band noise does, but it will sit at a calibrated level, relatively >> motionless on the scale as Wayne described the S-meter doing. >> >> As the operator kicks in more gain by turning on preamps or turning up the >> RF Gain, the scale shifts downward by the same amount. For instance, if the >> scale was showing -120 to -20 dBm -- a 100 dB range -- and then the >> operator turns on a 10 dB preamp, the scale must change to -130 to -30 dBm, >> because the preamp has made the receiver more sensitive while also reducing >> the max permissible level. >> >> Conversely, if the operator turned on 10 dB of attenuation, then the scale >> would shift upward to -110 to -10 dBm, indicating clearly that sensitivity >> is being sacrificed for greater large signal handling capability. The noise >> floor, being a relative constant, would move closer to the bottom of the >> window, or rather, the window would move relative to the noise floor in >> such a way as to place it 10 dB closer to the bottom end. >> >> So actually, as I'm thinking about this, the meter wouldn't move at all. >> It's the noise marker that would float higher and lower within the window >> as you varied the controls, just as on an S-meter. I guess what I'm >> describing here is more or less an S-meter calibrated in dBm! >> >> But perhaps the best reason for looking at the receiver this way would be >> to tune the controls precisely for a given noise floor. Twenty meters, with >> its -120 dBm noise floor, will require one combination of preamps and/or >> attenuators. On 80 meters, if the noise is, say, -100 dBm, the operator >> knows (because he can see the graphic) exactly how much attenuation is >> acceptable while still keeping the band noise marker in the operating >> range. It would behoove the operator to keep the noise floor marker near >> the bottom to 1) give him the maximum dynamic range under those conditions, >> and 2) to avoid becoming "my K4 is noisy" guy. >> >> Presumably, as each K4 goes through RF calibration at the factory it will >> know exactly the gain of each preamp, attenuator, filter, and splitter in >> its path. The scale could be custom for each individual unit, although I >> wouldn't want to start any "my K4 is more sensitive than yours" wars. >> >> I leave it to the programmers to decide on the specific eye candy of such >> a readout. I for one would find this type of meter fun and useful in >> getting a mental picture of where in dynamic range space the receiver is >> sitting. >> >> Can anybody see any flaws in this idea? I can foresee at least one. I >> don't know how the front end of the K4 will work, but if it is constantly >> moving the receiver range in response to what it hears, that is, in >> response to the total amount of power incident on its antenna port, then >> perhaps that might pose a real challenge to giving this type of feedback to >> the user. I don't know. >> >> Al W6LX >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 jstengrevics at comcast.net From chandlerusm at gmail.com Fri Apr 24 08:02:19 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Fri, 24 Apr 2020 07:02:19 -0500 Subject: [Elecraft] Fwd: K3S poor CW reported with N1MM+ In-Reply-To: References: Message-ID: Here's some further info quoted from a fellow who has worked me a dozen times or so in the CWT's. We haven't had a rag chew so I'm hoping this is still a N1MM+ = computer = K3S issue. My last rag chew yesterday with a fellow when I asked, he described my bug-sent CW note as "very steady, pure" or words to that effect. "the keying is very very "soft" - the opposite of a "hard" clicky signal. The attack/decay time, i.e. the time it takes to go from full off to full on (or on to off) is so long that a string of dits at over 30 wpm almost melt into one another, making it hard to copy. It's certainly distinctive." Is there a menu to adjust CW rise time? Is a firmware reload worthwhile? I'm currently at the latest versions. 73 de Chuck, WS1L -- =================== Chuck Chandler chandlerusm at gmail.com =================== From jasimmons at pinewooddata.com Fri Apr 24 08:29:44 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Fri, 24 Apr 2020 07:29:44 -0500 Subject: [Elecraft] Fwd: K3S poor CW reported with N1MM+ In-Reply-To: References: Message-ID: <3f671558-189a-c799-00d6-c5199fadf95e@pinewooddata.com> Use the QSK mode. There is no menu option to change the rise time- intentionally. If you listen to CW contests there are some REALLY wide signals out there. The K3 won't let you do that. Side note: The Drake 4-line had the best sounding CW note, in my humble opinion. -de John NI0K Chuck Chandler wrote on 4/24/2020 7:02 AM: > Here's some further info quoted from a fellow who has worked me a dozen > times or so in the CWT's. We haven't had a rag chew so I'm hoping this is > still a N1MM+ = computer = K3S issue. My last rag chew yesterday with a > fellow when I asked, he described my bug-sent CW note as "very steady, > pure" or words to that effect. > > "the keying is very very "soft" - the opposite of a "hard" clicky signal. > The attack/decay time, i.e. the time it takes to go from full off to full > on (or on to off) is so long that a string of dits at over 30 wpm almost > melt into one another, making it hard to copy. It's certainly distinctive." > > Is there a menu to adjust CW rise time? Is a firmware reload worthwhile? > I'm currently at the latest versions. > > 73 de Chuck, WS1L From K1ND at Comcast.net Fri Apr 24 09:12:28 2020 From: K1ND at Comcast.net (Jan) Date: Fri, 24 Apr 2020 09:12:28 -0400 Subject: [Elecraft] Subject: Re: VOX on KX, using a Heil headset Questions Message-ID: Hi? Elecrafters? and N3AO I have used a stereo headset with the electret mike on my KX3 for more than five years now Brand name is /Andrea, / model NC-65? ~ comes with an 8 foot cable with the appropriate 3/16" stereo plugs SETTINGS: on the KX3 I have the MIC gain ~ 43? and the VOX DLY ~ 0.20 Regards, Jan K1ND From chandlerusm at gmail.com Fri Apr 24 09:21:26 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Fri, 24 Apr 2020 08:21:26 -0500 Subject: [Elecraft] Fwd: K3S poor CW reported with N1MM+ In-Reply-To: <3f671558-189a-c799-00d6-c5199fadf95e@pinewooddata.com> References: <3f671558-189a-c799-00d6-c5199fadf95e@pinewooddata.com> Message-ID: I'm already in QSK mode. I wonder if using QRQ mode would help? 73, WS1L On Fri, Apr 24, 2020 at 7:34 AM John Simmons wrote: > Use the QSK mode. There is no menu option to change the rise time- > intentionally. If you listen to CW contests there are some REALLY wide > signals out there. The K3 won't let you do that. > > Side note: The Drake 4-line had the best sounding CW note, in my humble > opinion. > > -de John NI0K > > Chuck Chandler wrote on 4/24/2020 7:02 AM: > > Here's some further info quoted from a fellow who has worked me a dozen > > times or so in the CWT's. We haven't had a rag chew so I'm hoping this > is > > still a N1MM+ = computer = K3S issue. My last rag chew yesterday with a > > fellow when I asked, he described my bug-sent CW note as "very steady, > > pure" or words to that effect. > > > > "the keying is very very "soft" - the opposite of a "hard" clicky signal. > > The attack/decay time, i.e. the time it takes to go from full off to full > > on (or on to off) is so long that a string of dits at over 30 wpm almost > > melt into one another, making it hard to copy. It's certainly > distinctive." > > > > Is there a menu to adjust CW rise time? Is a firmware reload worthwhile? > > I'm currently at the latest versions. > > > > 73 de Chuck, WS1L > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to chandlerusm at gmail.com > -- =================== Chuck Chandler chandlerusm at gmail.com =================== From cyaffey at gmail.com Fri Apr 24 09:40:30 2020 From: cyaffey at gmail.com (Carl Yaffey) Date: Fri, 24 Apr 2020 09:40:30 -0400 Subject: [Elecraft] K3S poor CW reported with N1MM+ In-Reply-To: <3f671558-189a-c799-00d6-c5199fadf95e@pinewooddata.com> References: <3f671558-189a-c799-00d6-c5199fadf95e@pinewooddata.com> Message-ID: <06F62CF8-F882-49CE-88A4-D65E6E759218@gmail.com> IMHO nothing beat the sound of CW from a Collins 32V3. Yeah, I?m old! 73 K8NU > On Apr 24, 2020, at 8:29 AM, John Simmons wrote: > > Use the QSK mode. There is no menu option to change the rise time- intentionally. If you listen to CW contests there are some REALLY wide signals out there. The K3 won't let you do that. > > Side note: The Drake 4-line had the best sounding CW note, in my humble opinion. > > -de John NI0K Carl Yaffey K8NU 614 268 6353, Columbus OH http://www.carl-yaffey.com http://www.grassahol.com http://www.bluesswing.com Https://www.columbusfolkmusicsociety.org http://www.timbrewolves.carl-yaffey.com http://www.folkramblers.carl-yaffey.com Http:www.clintonvillegrass.com From stephen.tobe at gmail.com Fri Apr 24 09:51:12 2020 From: stephen.tobe at gmail.com (tobestep .) Date: Fri, 24 Apr 2020 09:51:12 -0400 Subject: [Elecraft] K4/0 Message-ID: Hi Wayne: Is there any additional information available on the K4/0? Will it be required for off-site remote operation or will there be some way to interact the with K4 and all controls via software on a remote computer? Thanks and 73, Steve VE3XO From n1rj at roadrunner.com Fri Apr 24 10:09:13 2020 From: n1rj at roadrunner.com (Roger D Johnson) Date: Fri, 24 Apr 2020 10:09:13 -0400 Subject: [Elecraft] K3S poor CW reported with N1MM+ In-Reply-To: <06F62CF8-F882-49CE-88A4-D65E6E759218@gmail.com> References: <3f671558-189a-c799-00d6-c5199fadf95e@pinewooddata.com> <06F62CF8-F882-49CE-88A4-D65E6E759218@gmail.com> Message-ID: <33198ce4-4af1-f982-4199-d78495122473@roadrunner.com> I rather liked the old Russian tank radios. Whoop de whoop de .... whoop whoop de whoop. 73, Roger On 4/24/2020 9:40 AM, Carl Yaffey wrote: > IMHO nothing beat the sound of CW from a Collins 32V3. Yeah, I?m old! > 73 K8NU From david.n5dch at gmail.com Fri Apr 24 10:12:56 2020 From: david.n5dch at gmail.com (David Herring) Date: Fri, 24 Apr 2020 08:12:56 -0600 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum Message-ID: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Does anyone have a way to dampen the physical hum generated by the transformer in an RS-35M PS? This really is just transformer hum I?m hearing, not signal hum?my station is fully bonded and as a result quiet in that regard. Most folks probably never hear this hum, but I have been ?blessed? with really good hearing and so this hum irritates the dickens out of me. If push comes to shove, I will relocated the PS farther away from the operating position, I just didn?t want to have to extend power and bonding runs and thus am hoping someone has a different idea. Thanks & 73, David N5DCH (Formerly AH6TD) From w2up at comcast.net Fri Apr 24 10:31:41 2020 From: w2up at comcast.net (Barry) Date: Fri, 24 Apr 2020 07:31:41 -0700 (MST) Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: <1587738701151-0.post@n2.nabble.com> Fairly common. I have a different Astron linear supply and have had that issue. Make sure the cabinet and transformer screws are tight. Assuming there's a relatively small gap between the top of the transformer and the top of the case, stick something between the two surfaces (folded piece of paper, for example) to dampen the induced vibration. Barry W2UP Does anyone have a way to dampen the physical hum generated by the transformer in an RS-35M PS? This really is just transformer hum I?m hearing, not signal hum?my station is fully bonded and as a result quiet in that regard. Most folks probably never hear this hum, but I have been ?blessed? with really good hearing and so this hum irritates the dickens out of me. If push comes to shove, I will relocated the PS farther away from the operating position, I just didn?t want to have to extend power and bonding runs and thus am hoping someone has a different idea. Thanks & 73, David N5DCH (Formerly AH6TD) -- Sent from: http://elecraft.365791.n2.nabble.com/ From dpbunte at gmail.com Fri Apr 24 10:34:31 2020 From: dpbunte at gmail.com (David Bunte) Date: Fri, 24 Apr 2020 10:34:31 -0400 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: David - I have an RS-35M, that sits on a shelf under my operating desk. I leave it on 24/7, and never gave any thought to acoustic hum from it. I just ducked my head down below the desktop, and 'thought' I could hear some hum. I turned off the power supply and verified that there is a little bit that I could detect. I am blessed with better than average hearing for a 76-year-old, but that is largely thanks to my hearing aids. In the past I have had pretty bad hum from power supply transformers, and the worst case I ever had was totally cured by tightening the bolts that held the laminations together. That was pretty easy because it was an open frame transformer in a home brew KW amp. In a number of transformers I have paid attention to in the past few years, the screws or bolts that hold the transformer to the chassis go through the corners of the laminations, and tightening those may also help. I have been "told" that acoustic hum is often made more evident because the chassis is vibrating... and that putting some dampening material (a sheet of rubber for example) under the transformer goes a long way toward reducing the problem. Best of luck. Dave - K9FN On Fri, Apr 24, 2020 at 10:14 AM David Herring wrote: > Does anyone have a way to dampen the physical hum generated by the > transformer in an RS-35M PS? > > This really is just transformer hum I?m hearing, not signal hum?my station > is fully bonded and as a result quiet in that regard. Most folks probably > never hear this hum, but I have been ?blessed? with really good hearing and > so this hum irritates the dickens out of me. > > If push comes to shove, I will relocated the PS farther away from the > operating position, I just didn?t want to have to extend power and bonding > runs and thus am hoping someone has a different idea. > > Thanks & 73, > David N5DCH > (Formerly AH6TD) > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dpbunte at gmail.com From gdt at lexort.com Fri Apr 24 10:37:57 2020 From: gdt at lexort.com (Greg Troxel) Date: Fri, 24 Apr 2020 10:37:57 -0400 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: (Wayne Burdick's message of "Thu, 23 Apr 2020 10:00:06 -0700") References: Message-ID: Wayne Burdick writes: Thanks for the note. I am a fan of radios being able to serve as test equipment, when that's a reasonable approach. > In addition to the S-meters, the K4 provides a convenient way to see > signal levels directly in dB (relative). Typically you'd zero the > reference level on band noise, then tune into a signal to get the dB > increase (S+N / N). This is useful for comparison tests. The numeric > values for dB, both main and sub, are shown in the status area of the > display, so they don't overwrite VFO B as on the K3/K3S. I am not sure how popular this request will be, but I would like to be able to see signal levels in dBm. Given what you said, that's just a different labeling, similar to how the PX3 can label in dBm or S units. But without seeing it, I realize that it could be awkward to have lots of large negative numbers, and if "S1" really means -73 - 8 * 6 = -121 dBm, as it seems to on the PX3, there's no real need. Probably, it's enough to see this in the "P4" section, and to use the SHM interface command. I think you are intending to stick to -73 dBm for 6m as well. There is a notion of using 5 uV for VHF, but I think that's more confusing than helpful, so I am in favor of -73 dBm for S9 always. It would also be nice for the KX3 to finally get the long-discussed absolute S-meter mode. 73 de n1dam From ac0ds at sent.com Fri Apr 24 11:11:59 2020 From: ac0ds at sent.com (Craig Smith) Date: Fri, 24 Apr 2020 09:11:59 -0600 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <7373A874-0E11-493C-B404-4315EF3AF39E@comcast.net> References: <1409581969.580028.1587673607902.ref@mail.yahoo.com> <1409581969.580028.1587673607902@mail.yahoo.com> <2108893772.33428.1587702709554@mail.yahoo.com> <7373A874-0E11-493C-B404-4315EF3AF39E@comcast.net> Message-ID: <7E03759D-5185-4266-8864-361804ED18F3@sent.com> It is very true that - in a contest situation - we aren?t often concerned with measuring signal levels. No argument. And, if contesting, DXing and rag chewing are all you use your K3 / K4 for, then I understand why you aren?t interested in the additional bells & whistles that are being discussed here. But many of us use the K3 / K4 for other purposes also. Even with the current implementation in the K3 / K3S, the dbm referenced signal measurement capability is extremely useful. My K3 was invaluable when I had an electronics lab as a very sensitive and selective calibrated RF voltmeter. Used it constantly both for design and for troubleshooting during many construction projects. I think the kinds of enhancements being discussed here will be a valuable addition to the K4 and encourage additional discussion. 73 Craig AC0DS From markmusick at outlook.com Fri Apr 24 11:13:57 2020 From: markmusick at outlook.com (Mark Musick) Date: Fri, 24 Apr 2020 15:13:57 +0000 Subject: [Elecraft] K4/0 In-Reply-To: References: Message-ID: Steve, I don't have a link, but if you watch the video from Dayton last year you will see Eric demonstrating the K4 using an Ipad. No need for a K4/0. You'll be able to remote to it via a tablet, PC and I would expect an app to remote via a smartphone. 73, Mark, WB9CIF -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of tobestep . Sent: Friday, April 24, 2020 13:51 To: Elecraft at mailman.qth.net Subject: [Elecraft] K4/0 Hi Wayne: Is there any additional information available on the K4/0? Will it be required for off-site remote operation or will there be some way to interact the with K4 and all controls via software on a remote computer? Thanks and 73, Steve VE3XO ______________________________________________________________ Elecraft mailing list Home: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C4f620e9f462b481449ca08d7e856dad8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637233332037082165&sdata=v4llx5cGfBEZeOn9uCGDMA%2BqDSIIzb3RUl%2BmNoB9c7o%3D&reserved=0 Help: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C4f620e9f462b481449ca08d7e856dad8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637233332037082165&sdata=5IT%2FK3k%2B%2FZJl8TPG6cnCzQ0kr4zjy8YyBYyurfqTQ5A%3D&reserved=0 Post: mailto:Elecraft at mailman.qth.net This list hosted by: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C4f620e9f462b481449ca08d7e856dad8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637233332037082165&sdata=Lk7J%2B2SRxLS%2B1ttMllECM84D%2F4No3zodf9W2YnMntXs%3D&reserved=0 Please help support this email list: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C4f620e9f462b481449ca08d7e856dad8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637233332037082165&sdata=%2Fqr9YOnuv1HPsdBYkYpvHRbZRMtpaic9XhxqxMQmen8%3D&reserved=0 Message delivered to markmusick at outlook.com From k7voradio at gmail.com Fri Apr 24 11:17:22 2020 From: k7voradio at gmail.com (Robert Sands) Date: Fri, 24 Apr 2020 08:17:22 -0700 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: My Astron hums loudly only when the fax machine runs. Otherwise silent. ?interaction puzzling. On Fri, Apr 24, 2020, 7:35 AM David Bunte wrote: > David - > > I have an RS-35M, that sits on a shelf under my operating desk. I leave it > on 24/7, and never gave any thought to acoustic hum from it. I just ducked > my head down below the desktop, and 'thought' I could hear some hum. I > turned off the power supply and verified that there is a little bit that I > could detect. I am blessed with better than average hearing for a > 76-year-old, but that is largely thanks to my hearing aids. > > In the past I have had pretty bad hum from power supply transformers, and > the worst case I ever had was totally cured by tightening the bolts that > held the laminations together. That was pretty easy because it was an open > frame transformer in a home brew KW amp. In a number of transformers I have > paid attention to in the past few years, the screws or bolts that hold the > transformer to the chassis go through the corners of the laminations, and > tightening those may also help. > > I have been "told" that acoustic hum is often made more evident because the > chassis is vibrating... and that putting some dampening material (a sheet > of rubber for example) under the transformer goes a long way toward > reducing the problem. > > Best of luck. > > Dave - K9FN > > > > On Fri, Apr 24, 2020 at 10:14 AM David Herring > wrote: > > > Does anyone have a way to dampen the physical hum generated by the > > transformer in an RS-35M PS? > > > > This really is just transformer hum I?m hearing, not signal hum?my > station > > is fully bonded and as a result quiet in that regard. Most folks > probably > > never hear this hum, but I have been ?blessed? with really good hearing > and > > so this hum irritates the dickens out of me. > > > > If push comes to shove, I will relocated the PS farther away from the > > operating position, I just didn?t want to have to extend power and > bonding > > runs and thus am hoping someone has a different idea. > > > > Thanks & 73, > > David N5DCH > > (Formerly AH6TD) > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to dpbunte 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 k7voradio at gmail.com From pincon at erols.com Fri Apr 24 09:42:06 2020 From: pincon at erols.com (Charlie T) Date: Fri, 24 Apr 2020 09:42:06 -0400 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <7373A874-0E11-493C-B404-4315EF3AF39E@comcast.net> References: <1409581969.580028.1587673607902.ref@mail.yahoo.com> <1409581969.580028.1587673607902@mail.yahoo.com> <2108893772.33428.1587702709554@mail.yahoo.com> <7373A874-0E11-493C-B404-4315EF3AF39E@comcast.net> Message-ID: <003201d61a3e$28b89bd0$7a29d370$@erols.com> S-meters should be calibrated with 9 signal levels: *Faint - Signal barely perceptible *Very weak signals *Weak signals *Fair signals *Fairly good signals *Good signals *Moderately strong signals *Strong signals *Extremely strong signals (Reprinted from the 1947 ARRL Handbook, page 466 "RST System of Signal Reports") 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of John Stengrevics Sent: Friday, April 24, 2020 7:49 AM To: Morgan Bailey Cc: Elecraft at mailman.qth.net Subject: Re: [Elecraft] K4 S-meter characteristics Agree completely. I find all S meters to be totally inaccurate and next to useless, including my K3S?. > On Apr 24, 2020, at 7:43 AM, Morgan Bailey wrote: > > Maybe it is just me but, Turn the radio on, adjust the audio/rf/agc > controls, hear the station, work him, move on. I dont need a fancy dbm > or an iconic number of engineering controls, to say what the dbm was > when I worked the guy. When you contest, who the hell cares, hear him, > work him, move on. In simple terms, I just want selectivity, and no > agc pumping and no front in desensing from a 40 db over nine station 2khz away. > > Im looking forward to a quiet front end, that keeps me from having to > listen to 48 hours of static that is generated by the stages with in > the radio. Love my K3S, great radio. Simple to operate once you learn > its controls and never has failed me. > > Looking forward to K4 delivery. > > Vy 73, > Morgan Bailey NJ8M > > From jasimmons at pinewooddata.com Fri Apr 24 12:04:02 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Fri, 24 Apr 2020 11:04:02 -0500 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: <753680ba-f4a4-efa5-af9e-f2b19bd8854a@pinewooddata.com> My laser printer has the same effect. -de John NI0K Robert Sands wrote on 4/24/2020 10:17 AM: > My Astron hums loudly only when the fax machine runs. Otherwise silent. > ?interaction puzzling. > > On Fri, Apr 24, 2020, 7:35 AM David Bunte wrote: > >> David - >> >> I have an RS-35M, that sits on a shelf under my operating desk. I leave it >> on 24/7, and never gave any thought to acoustic hum from it. I just ducked >> my head down below the desktop, and 'thought' I could hear some hum. I >> turned off the power supply and verified that there is a little bit that I >> could detect. I am blessed with better than average hearing for a >> 76-year-old, but that is largely thanks to my hearing aids. >> >> In the past I have had pretty bad hum from power supply transformers, and >> the worst case I ever had was totally cured by tightening the bolts that >> held the laminations together. That was pretty easy because it was an open >> frame transformer in a home brew KW amp. In a number of transformers I have >> paid attention to in the past few years, the screws or bolts that hold the >> transformer to the chassis go through the corners of the laminations, and >> tightening those may also help. >> >> I have been "told" that acoustic hum is often made more evident because the >> chassis is vibrating... and that putting some dampening material (a sheet >> of rubber for example) under the transformer goes a long way toward >> reducing the problem. >> >> Best of luck. >> >> Dave - K9FN >> >> >> >> On Fri, Apr 24, 2020 at 10:14 AM David Herring >> wrote: >> >>> Does anyone have a way to dampen the physical hum generated by the >>> transformer in an RS-35M PS? >>> >>> This really is just transformer hum I?m hearing, not signal hum?my >> station >>> is fully bonded and as a result quiet in that regard. Most folks >> probably >>> never hear this hum, but I have been ?blessed? with really good hearing >> and >>> so this hum irritates the dickens out of me. >>> >>> If push comes to shove, I will relocated the PS farther away from the >>> operating position, I just didn?t want to have to extend power and >> bonding >>> runs and thus am hoping someone has a different idea. >>> >>> Thanks & 73, >>> David N5DCH >>> (Formerly AH6TD) >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to dpbunte 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 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 jasimmons at pinewooddata.com From kl7uw at acsalaska.net Fri Apr 24 12:04:34 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Fri, 24 Apr 2020 08:04:34 -0800 Subject: [Elecraft] Elecraft K3s, etc. bonding Message-ID: <202004241604.03OG4a7p020096@mail47c28.carrierzone.com> Interesting statement. How did you determine this? I brought home from work my professional service monitor and checked my K3 (SN-4340) s-meter. Except from S0-S1 all other steps were exactly 6-dB. S9 = -73 dBm as advertised. I didn't bother much measuring above S9 so cannot comment on linearity in that region. I also measured both K3 and KX3 preamps on ON/OFF on 50 & 28 MHz: http://www.kl7uw.com/HF.htm Note K3 sensitivity using -73 dBm on 50-MHz with internal preamp off was S8 and S9+5 with internal preamp on. This was using my XG3 as signal source so it might be slightly inaccurate (+/- 1 dB). I checked the XG3 with my mw power meter for accurate output at 0 dBm. Subsequent to these measurements Elecraft came out with the PR6 to help K3 sensitivity on 10m & 6m and I have not checked whether that effects s-meter readings (probably). You might note that I tested 50-MHz sensitivity using an ARR Gasfet preamp that has 24-dB gain. It raises baseline noise due to the gain but I use it for 6m eme. Slightly better than the PR6, but I use just the PR6 for non-eme use. Built-in bypass connectors on the PR6 make using the ARR easy to switch in/out. 73, Ed - KL7UW Date: Fri, 24 Apr 2020 07:48:58 -0400 From: John Stengrevics To: Morgan Bailey Cc: Elecraft at mailman.qth.net Subject: Re: [Elecraft] K4 S-meter characteristics Message-ID: <7373A874-0E11-493C-B404-4315EF3AF39E at comcast.net> Content-Type: text/plain; charset=utf-8 Agree completely. I find all S meters to be totally inaccurate and next to useless, including my K3S?. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From anyone1545 at gmail.com Fri Apr 24 12:06:30 2020 From: anyone1545 at gmail.com (Gmail) Date: Fri, 24 Apr 2020 10:06:30 -0600 Subject: [Elecraft] K4/0 In-Reply-To: References: Message-ID: It was a tablet, I?m not sure it was an IPad Ray W8LYJ Sent from my iPad > On Apr 24, 2020, at 09:15, Mark Musick wrote: > > ?Steve, > I don't have a link, but if you watch the video from Dayton last year you will see Eric demonstrating the K4 using an Ipad. No need for a K4/0. You'll be able to remote to it via a tablet, PC and I would expect an app to remote via a smartphone. > > 73, > Mark, WB9CIF > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of tobestep . > Sent: Friday, April 24, 2020 13:51 > To: Elecraft at mailman.qth.net > Subject: [Elecraft] K4/0 > > Hi Wayne: > Is there any additional information available on the K4/0? Will it be required for off-site remote operation or will there be some way to interact the with K4 and all controls via software on a remote computer? > Thanks and 73, > Steve VE3XO > ______________________________________________________________ > Elecraft mailing list > Home: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C4f620e9f462b481449ca08d7e856dad8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637233332037082165&sdata=v4llx5cGfBEZeOn9uCGDMA%2BqDSIIzb3RUl%2BmNoB9c7o%3D&reserved=0 > Help: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C4f620e9f462b481449ca08d7e856dad8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637233332037082165&sdata=5IT%2FK3k%2B%2FZJl8TPG6cnCzQ0kr4zjy8YyBYyurfqTQ5A%3D&reserved=0 > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C4f620e9f462b481449ca08d7e856dad8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637233332037082165&sdata=Lk7J%2B2SRxLS%2B1ttMllECM84D%2F4No3zodf9W2YnMntXs%3D&reserved=0 > Please help support this email list: https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C4f620e9f462b481449ca08d7e856dad8%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637233332037082165&sdata=%2Fqr9YOnuv1HPsdBYkYpvHRbZRMtpaic9XhxqxMQmen8%3D&reserved=0 > Message delivered to markmusick 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 anyone1545 at gmail.com From fsindeaux at yahoo.com Fri Apr 24 12:15:58 2020 From: fsindeaux at yahoo.com (Fernando Sindeaux) Date: Fri, 24 Apr 2020 13:15:58 -0300 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: I have an Astron RS-35A, and also hums, not too loud, but if the Shack is in silence, I can hear it, low but can be heard. 73 to all, Fernando, PY1BL Sent from my iPhone > On Apr 24, 2020, at 12:17 PM, Robert Sands wrote: > > My Astron hums loudly only when the fax machine runs. Otherwise silent. > ?interaction puzzling. > >> On Fri, Apr 24, 2020, 7:35 AM David Bunte wrote: >> >> David - >> >> I have an RS-35M, that sits on a shelf under my operating desk. I leave it >> on 24/7, and never gave any thought to acoustic hum from it. I just ducked >> my head down below the desktop, and 'thought' I could hear some hum. I >> turned off the power supply and verified that there is a little bit that I >> could detect. I am blessed with better than average hearing for a >> 76-year-old, but that is largely thanks to my hearing aids. >> >> In the past I have had pretty bad hum from power supply transformers, and >> the worst case I ever had was totally cured by tightening the bolts that >> held the laminations together. That was pretty easy because it was an open >> frame transformer in a home brew KW amp. In a number of transformers I have >> paid attention to in the past few years, the screws or bolts that hold the >> transformer to the chassis go through the corners of the laminations, and >> tightening those may also help. >> >> I have been "told" that acoustic hum is often made more evident because the >> chassis is vibrating... and that putting some dampening material (a sheet >> of rubber for example) under the transformer goes a long way toward >> reducing the problem. >> >> Best of luck. >> >> Dave - K9FN >> >> >> >> On Fri, Apr 24, 2020 at 10:14 AM David Herring >> wrote: >> >>> Does anyone have a way to dampen the physical hum generated by the >>> transformer in an RS-35M PS? >>> >>> This really is just transformer hum I?m hearing, not signal hum?my >> station >>> is fully bonded and as a result quiet in that regard. Most folks >> probably >>> never hear this hum, but I have been ?blessed? with really good hearing >> and >>> so this hum irritates the dickens out of me. >>> >>> If push comes to shove, I will relocated the PS farther away from the >>> operating position, I just didn?t want to have to extend power and >> bonding >>> runs and thus am hoping someone has a different idea. >>> >>> Thanks & 73, >>> David N5DCH >>> (Formerly AH6TD) >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to dpbunte 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 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 fsindeaux at yahoo.com From fsindeaux at yahoo.com Fri Apr 24 12:15:58 2020 From: fsindeaux at yahoo.com (Fernando Sindeaux) Date: Fri, 24 Apr 2020 13:15:58 -0300 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: I have an Astron RS-35A, and also hums, not too loud, but if the Shack is in silence, I can hear it, low but can be heard. 73 to all, Fernando, PY1BL Sent from my iPhone > On Apr 24, 2020, at 12:17 PM, Robert Sands wrote: > > My Astron hums loudly only when the fax machine runs. Otherwise silent. > ?interaction puzzling. > >> On Fri, Apr 24, 2020, 7:35 AM David Bunte wrote: >> >> David - >> >> I have an RS-35M, that sits on a shelf under my operating desk. I leave it >> on 24/7, and never gave any thought to acoustic hum from it. I just ducked >> my head down below the desktop, and 'thought' I could hear some hum. I >> turned off the power supply and verified that there is a little bit that I >> could detect. I am blessed with better than average hearing for a >> 76-year-old, but that is largely thanks to my hearing aids. >> >> In the past I have had pretty bad hum from power supply transformers, and >> the worst case I ever had was totally cured by tightening the bolts that >> held the laminations together. That was pretty easy because it was an open >> frame transformer in a home brew KW amp. In a number of transformers I have >> paid attention to in the past few years, the screws or bolts that hold the >> transformer to the chassis go through the corners of the laminations, and >> tightening those may also help. >> >> I have been "told" that acoustic hum is often made more evident because the >> chassis is vibrating... and that putting some dampening material (a sheet >> of rubber for example) under the transformer goes a long way toward >> reducing the problem. >> >> Best of luck. >> >> Dave - K9FN >> >> >> >> On Fri, Apr 24, 2020 at 10:14 AM David Herring >> wrote: >> >>> Does anyone have a way to dampen the physical hum generated by the >>> transformer in an RS-35M PS? >>> >>> This really is just transformer hum I?m hearing, not signal hum?my >> station >>> is fully bonded and as a result quiet in that regard. Most folks >> probably >>> never hear this hum, but I have been ?blessed? with really good hearing >> and >>> so this hum irritates the dickens out of me. >>> >>> If push comes to shove, I will relocated the PS farther away from the >>> operating position, I just didn?t want to have to extend power and >> bonding >>> runs and thus am hoping someone has a different idea. >>> >>> Thanks & 73, >>> David N5DCH >>> (Formerly AH6TD) >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to dpbunte 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 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 fsindeaux at yahoo.com From ghyoungman at gmail.com Fri Apr 24 12:25:49 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 24 Apr 2020 12:25:49 -0400 Subject: [Elecraft] K4/0 In-Reply-To: References: Message-ID: <59974631-5341-4248-B06D-6A591F6A11EC@gmail.com> I believe it was a Windows tablet. My recollection is that the message was that iPad support would come later. There may have been some progress, but I haven?t seen anything new officially from Elecraft. Might have missed it though. I?m personally hopeful that there will be a fully functional macOS app for remote operation. I run Windows 10 under Parallels to support several ham apps for which the developers have decided that Windows and only Windows is necessary. But that would be an unfortunate and unnecessarily messy model to embrace. Grant NQ5T > On Apr 24, 2020, at 12:06 PM, Gmail wrote: > > It was a tablet, I?m not sure it was an IPad > Ray > W8LYJ > > Sent from my iPad > >> On Apr 24, 2020, at 09:15, Mark Musick wrote: >> >> ?Steve, >> I don't have a link, but if you watch the video from Dayton last year you will see Eric demonstrating the K4 using an Ipad. No need for a K4/0. You'll be able to remote to it via a tablet, PC and I would expect an app to remote via a smartphone. >> >> 73, >> Mark, WB9CIF From ghyoungman at gmail.com Fri Apr 24 12:27:32 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 24 Apr 2020 12:27:32 -0400 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <003201d61a3e$28b89bd0$7a29d370$@erols.com> References: <1409581969.580028.1587673607902.ref@mail.yahoo.com> <1409581969.580028.1587673607902@mail.yahoo.com> <2108893772.33428.1587702709554@mail.yahoo.com> <7373A874-0E11-493C-B404-4315EF3AF39E@comcast.net> <003201d61a3e$28b89bd0$7a29d370$@erols.com> Message-ID: <858D3CD5-8242-4005-A5C0-AB0FAF8B1176@gmail.com> Don?t forget ?contest? mode, where the meter reads S-9 for all signals :-) Grant NQ5T > On Apr 24, 2020, at 9:42 AM, Charlie T wrote: > > S-meters should be calibrated with 9 signal levels: > > *Faint - Signal barely perceptible > *Very weak signals > *Weak signals > *Fair signals > *Fairly good signals > *Good signals > *Moderately strong signals > *Strong signals > *Extremely strong signals > > (Reprinted from the 1947 ARRL Handbook, page 466 "RST System of Signal Reports") > > 73, Charlie k3ICH > > > From radiok4ia at gmail.com Fri Apr 24 12:30:07 2020 From: radiok4ia at gmail.com (Buck) Date: Fri, 24 Apr 2020 12:30:07 -0400 Subject: [Elecraft] K4/0 In-Reply-To: <59974631-5341-4248-B06D-6A591F6A11EC@gmail.com> References: <59974631-5341-4248-B06D-6A591F6A11EC@gmail.com> Message-ID: <033ff417-5c8c-6496-87f7-19dc500140e9@Gmail.com> As I recall, it was an iPad running a Windows emulation. That's too much for my feeble brain to comprehend. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 4/24/2020 12:25 PM, Grant Youngman wrote: > I believe it was a Windows tablet. My recollection is that the message was that iPad support would come later. There may have been some progress, but I haven?t seen anything new officially from Elecraft. Might have missed it though. > > I?m personally hopeful that there will be a fully functional macOS app for remote operation. I run Windows 10 under Parallels to support several ham apps for which the developers have decided that Windows and only Windows is necessary. But that would be an unfortunate and unnecessarily messy model to embrace. > > Grant NQ5T > > >> On Apr 24, 2020, at 12:06 PM, Gmail wrote: >> >> It was a tablet, I?m not sure it was an IPad >> Ray >> W8LYJ >> >> Sent from my iPad >> >>> On Apr 24, 2020, at 09:15, Mark Musick wrote: >>> >>> ?Steve, >>> I don't have a link, but if you watch the video from Dayton last year you will see Eric demonstrating the K4 using an Ipad. No need for a K4/0. You'll be able to remote to it via a tablet, PC and I would expect an app to remote via a smartphone. >>> >>> 73, >>> Mark, WB9CIF > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com Fri Apr 24 12:37:33 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Fri, 24 Apr 2020 09:37:33 -0700 Subject: [Elecraft] K4/0 In-Reply-To: <033ff417-5c8c-6496-87f7-19dc500140e9@Gmail.com> References: <59974631-5341-4248-B06D-6A591F6A11EC@gmail.com> <033ff417-5c8c-6496-87f7-19dc500140e9@Gmail.com> Message-ID: <275adedf-1b56-1a17-a267-ea53eabf6c65@gmail.com> Here is the link of the video which demonstrates the remote features (another K4 or a tablet) management (it wasn't an iPad and wasn't defined in the video). https://www.youtube.com/watch?v=_m2xXjeqJYM Rick NK7I On 4/24/2020 9:30 AM, Buck wrote: > As I recall, it was an iPad running a Windows emulation.? That's too > much for my feeble brain to comprehend. > > Buck, k4ia > Honor Roll > 8BDXCC > EasyWayHamBooks.com > > On 4/24/2020 12:25 PM, Grant Youngman wrote: >> I believe it was a Windows tablet.? My recollection is that the >> message was that iPad support would come later.? There may have been >> some progress, but I haven?t seen anything new officially from >> Elecraft.? Might have missed it though. >> >> I?m personally hopeful that there will be a fully functional macOS >> app for remote operation.? I run Windows 10 under Parallels to >> support several ham apps for which the developers have decided that >> Windows and only Windows is necessary.? But that would be an >> unfortunate and unnecessarily messy model to embrace. >> >> Grant NQ5T >> >> >>> On Apr 24, 2020, at 12:06 PM, Gmail wrote: >>> >>> It was a tablet, I?m not sure it was an IPad >>> Ray >>> W8LYJ >>> >>> Sent from my iPad >>> >>>> On Apr 24, 2020, at 09:15, Mark Musick wrote: >>>> >>>> ?Steve, >>>> I don't have a link, but if you watch the video from Dayton last >>>> year you will see Eric demonstrating the K4 using an Ipad. No need >>>> for a K4/0. You'll be able to remote to it via a tablet, PC and I >>>> would expect an app to remote via a smartphone. >>>> >>>> 73, >>>> Mark, WB9CIF >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 rick.nk7i at gmail.com From inventor61 at gmail.com Fri Apr 24 12:48:59 2020 From: inventor61 at gmail.com (inventor61 .) Date: Fri, 24 Apr 2020 12:48:59 -0400 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum Message-ID: I have a CAD design for a replacement wooden top for the RS-35, -35M, and VS-35M Astron supplies. This top cover looks exactly like the factory steel cover, uses the same mounting holes, and even has an exact duplicate of the vent slots. The material that worked out best was a HDF board. It can be painted easily in any color including the factory textured black. The design is intended to be produced on a CNC machine like a full size ShopBot, as were the several prototypes, which really turned out splendidly. It of course solved the problem of the eddy currents in the steel lid, which for this size Astron is too close to the field of the power transformer. These currents cause the acoustic noise. I was planning on bringing this replacement top cover to the ham operator market last year but I ran into production challenges. It's simply too costly to produce these, ship them, and sell at an acceptable cost even ignoring making a worthwhile margin. If someone has a better idea than mine for making these, I am all ears. Steve KZ1X From garnere at gmail.com Fri Apr 24 12:57:04 2020 From: garnere at gmail.com (Eric Garner) Date: Fri, 24 Apr 2020 09:57:04 -0700 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: Has anyone tried using something like Dynamat (used to damp vibrations in cars). To keep the case from resonating? On Fri, Apr 24, 2020 at 9:17 AM Fernando Sindeaux via Elecraft < elecraft at mailman.qth.net> wrote: > I have an Astron RS-35A, and also hums, not too loud, but if the Shack is > in silence, I can hear it, low but can be heard. > 73 to all, > Fernando, PY1BL > > Sent from my iPhone > > > On Apr 24, 2020, at 12:17 PM, Robert Sands wrote: > > > > My Astron hums loudly only when the fax machine runs. Otherwise silent. > > ?interaction puzzling. > > > >> On Fri, Apr 24, 2020, 7:35 AM David Bunte wrote: > >> > >> David - > >> > >> I have an RS-35M, that sits on a shelf under my operating desk. I leave > it > >> on 24/7, and never gave any thought to acoustic hum from it. I just > ducked > >> my head down below the desktop, and 'thought' I could hear some hum. I > >> turned off the power supply and verified that there is a little bit > that I > >> could detect. I am blessed with better than average hearing for a > >> 76-year-old, but that is largely thanks to my hearing aids. > >> > >> In the past I have had pretty bad hum from power supply transformers, > and > >> the worst case I ever had was totally cured by tightening the bolts that > >> held the laminations together. That was pretty easy because it was an > open > >> frame transformer in a home brew KW amp. In a number of transformers I > have > >> paid attention to in the past few years, the screws or bolts that hold > the > >> transformer to the chassis go through the corners of the laminations, > and > >> tightening those may also help. > >> > >> I have been "told" that acoustic hum is often made more evident because > the > >> chassis is vibrating... and that putting some dampening material (a > sheet > >> of rubber for example) under the transformer goes a long way toward > >> reducing the problem. > >> > >> Best of luck. > >> > >> Dave - K9FN > >> > >> > >> > >> On Fri, Apr 24, 2020 at 10:14 AM David Herring > >> wrote: > >> > >>> Does anyone have a way to dampen the physical hum generated by the > >>> transformer in an RS-35M PS? > >>> > >>> This really is just transformer hum I?m hearing, not signal hum?my > >> station > >>> is fully bonded and as a result quiet in that regard. Most folks > >> probably > >>> never hear this hum, but I have been ?blessed? with really good hearing > >> and > >>> so this hum irritates the dickens out of me. > >>> > >>> If push comes to shove, I will relocated the PS farther away from the > >>> operating position, I just didn?t want to have to extend power and > >> bonding > >>> runs and thus am hoping someone has a different idea. > >>> > >>> Thanks & 73, > >>> David N5DCH > >>> (Formerly AH6TD) > >>> > >>> > >>> ______________________________________________________________ > >>> Elecraft mailing list > >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >>> Help: http://mailman.qth.net/mmfaq.htm > >>> Post: mailto:Elecraft at mailman.qth.net > >>> > >>> This list hosted by: http://www.qsl.net > >>> Please help support this email list: http://www.qsl.net/donate.html > >>> Message delivered to dpbunte 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 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 fsindeaux 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 garnere at gmail.com -- --Eric _________________________________________ Eric Garner From vfo77 at inkbox.net Fri Apr 24 13:11:36 2020 From: vfo77 at inkbox.net (Frank O'Donnell) Date: Fri, 24 Apr 2020 10:11:36 -0700 Subject: [Elecraft] K3/K3S receiver and high-precision frequency determination? Message-ID: <9e19e436-7065-aeaf-b86b-1b0f851d8996@inkbox.net> Sometime (probably last year) I remember seeing a discussion of why the K3/K3S receiver isn't suitable to do high-precision frequency measurement tests at the level of hundredths of a Hertz. As I vaguely recall, the receiver is designed so that its frequency actually varies a bit intentionally, and I remember someone posting a plot demonstrating this. However, I'm striking out on finding any of those posts. Can anyone either help with them, or point to any other discussion/explanation on this? Thanks much, Frank K6FOD From wm3m73 at gmail.com Fri Apr 24 13:29:53 2020 From: wm3m73 at gmail.com (WM3M) Date: Fri, 24 Apr 2020 13:29:53 -0400 Subject: [Elecraft] WTB - K3 or K3S internal tuner Message-ID: <27d399cc-f6e2-6d0f-127c-b6436f800055@gmail.com> Looking for an internal tuner for K3 or K3S.? Had intended to buy one but waited too long. If you have one you would like to sell please let me know. wm3m73 at gmail dot com?? Thank you? 73? Emory? WM3M From hbjr at optilink.us Fri Apr 24 13:31:29 2020 From: hbjr at optilink.us (Hank) Date: Fri, 24 Apr 2020 13:31:29 -0400 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: <38adafeaed71ad93d7c9f445d0320538@optilink.us> My 50 Amp Astron had a piece of cork material glued between the front of the case and the transformer. ?It started humming one day when the glue dried out and the cork fell. ?I glued it back in place and all is well. I had a 70 Amp do the same thing. Maybe try a little piece of some similar material between the side of the case and transformer. Hank K4HYJ ? ----- Original Message ----- From: Eric Garner (garnere at gmail.com) Date: 04/24/20 12:57 To: Elecraft Discussion List (elecraft at mailman.qth.net) Subject: Re: [Elecraft] OT: Astron RS-35M Transformer Hum Has anyone tried using something like Dynamat (used to damp vibrations in cars). To keep the case from resonating? On Fri, Apr 24, 2020 at 9:17 AM Fernando Sindeaux via Elecraft < elecraft at mailman.qth.net> wrote: > I have an Astron RS-35A, and also hums, not too loud, but if the Shack is > in silence, I can hear it, low but can be heard. > 73 to all, > Fernando, PY1BL > > Sent from my iPhone > > > On Apr 24, 2020, at 12:17 PM, Robert Sands wrote: > > > > My Astron hums loudly only when the fax machine runs. Otherwise silent. > > ?interaction puzzling. > > > >> On Fri, Apr 24, 2020, 7:35 AM David Bunte wrote: > >> > >> David - > >> > >> I have an RS-35M, that sits on a shelf under my operating desk. I leave > it > >> on 24/7, and never gave any thought to acoustic hum from it. I just > ducked > >> my head down below the desktop, and 'thought' I could hear some hum. I > >> turned off the power supply and verified that there is a little bit > that I > >> could detect. I am blessed with better than average hearing for a > >> 76-year-old, but that is largely thanks to my hearing aids. > >> > >> In the past I have had pretty bad hum from power supply transformers, > and > >> the worst case I ever had was totally cured by tightening the bolts that > >> held the laminations together. That was pretty easy because it was an > open > >> frame transformer in a home brew KW amp. In a number of transformers I > have > >> paid attention to in the past few years, the screws or bolts that hold > the > >> transformer to the chassis go through the corners of the laminations, > and > >> tightening those may also help. > >> > >> I have been "told" that acoustic hum is often made more evident because > the > >> chassis is vibrating... and that putting some dampening material (a > sheet > >> of rubber for example) under the transformer goes a long way toward > >> reducing the problem. > >> > >> Best of luck. > >> > >> Dave - K9FN > >> > >> > >> > >> On Fri, Apr 24, 2020 at 10:14 AM David Herring > >> wrote: > >> > >>> Does anyone have a way to dampen the physical hum generated by the > >>> transformer in an RS-35M PS? > >>> > >>> This really is just transformer hum I?m hearing, not signal hum?my > >> station > >>> is fully bonded and as a result quiet in that regard. ?Most folks > >> probably > >>> never hear this hum, but I have been ?blessed? with really good hearing > >> and > >>> so this hum irritates the dickens out of me. > >>> > >>> If push comes to shove, I will relocated the PS farther away from the > >>> operating position, I just didn?t want to have to extend power and > >> bonding > >>> runs and thus am hoping someone has a different idea. > >>> > >>> Thanks & 73, > >>> David N5DCH > >>> (Formerly AH6TD) > >>> > >>> > >>> ______________________________________________________________ > >>> Elecraft mailing list > >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >>> Help: http://mailman.qth.net/mmfaq.htm > >>> Post: mailto:Elecraft at mailman.qth.net > >>> > >>> This list hosted by: http://www.qsl.net > >>> Please help support this email list: http://www.qsl.net/donate.html > >>> Message delivered to dpbunte 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 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 fsindeaux 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 garnere at gmail.com -- --Eric _________________________________________ Eric Garner ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 bbaines at mac.com Fri Apr 24 13:41:31 2020 From: bbaines at mac.com (Barry Baines) Date: Fri, 24 Apr 2020 12:41:31 -0500 Subject: [Elecraft] K4/0 In-Reply-To: References: Message-ID: <872CDDF2-442C-4592-92DC-6FBD503FB1B2@mac.com> Mark: > On Apr 24, 2020, at 10:13 AM, Mark Musick wrote: > > Steve, > I don't have a link, but if you watch the video from Dayton last year you will see Eric demonstrating the K4 using an Ipad. No need for a K4/0. True. But it does come down to operator preference. Flex?s product line was originally ?all software? requiring either a PC or an iPad for Flex supported software or dogparkSDR for those with a Mac supported by Dog Park Software, Ltd (Don Agro). Flex later came out with Maestro because some operators want knobs such as contesters. And now they offer Flex transcievers with Maestro as a bulit-in operator interface meaning that the user doesn?t have to be Windows savy, MacOS savy. or have to own an iOS device to use Flex products. In my case I?ve found the K3/I0-Mini to control my K3 and Maestro to control my Flex-6700 to be the easiest way to operate remotely. Both units sit on my desk in Texas while the station is in SE Georgia. I simply turn them on and they connect with their respective transceivers. I can use amateur radio headsets without any problems. Compare that to running SSDR on a PC (or a Mac under Parallels running Windows or DogparkSDR in MacOS) where I have to a) start the computer, b) start the software, and c) connect a headset of some sort that has a USB interface. And once the software is running it is taking up a significant amount of real estate on the screen making it more difficult to use other software while monitoring the bands. In my case, while I have the ability to use every user interface offered by Flex (Windows SSDR, iPad SSDR, ios SSDR plus Maestro) I use Maestro 90% of the time. On the Elecraft side, the K3/I0-Mini ?just works? by turning it on. I can easily pick a frequency and listen to a net or ragchew, jump in if I want to, and it takes up little space on the desk. I do have to remotely connect to the ham station in order to get the KAT500 up and running and I run a web browser to operate the KPA-500 (Through the Remote Rig 1216H) and rotor system (Green Heron interfaced with another RR-1216H), but once up and running I can reduce the screen size without loss of visibility of the browser. The major downside of the Elecraft gear is the lack of a panadapter at the operating position in Texas that the Flex has both in software and the Maestro, but of course that will be rectified with a ?K4/0?. On the other hand, with the Flex I can manage/operate the PGXL amplifier from the Maestro. The major downside of the PGXL is the lack of tuner so I can?t use it on my EFHW for 80/40, etc. At some point such a tuner will be released. Thus, I do have to use the K3 when transmitting on the EFHW. (The EFHW doesn?t resonate well enough to avoid using a tuner.) Consequently, I fully expect that whenever Elecraft releases a " K4/0? it will be well received by those who need to operate remotely (e.g. connection through the WAN) because it will be essentially the same as being in front of the ?real? K4. And those that have their amateur equipment installed in a building separate from their residence on their property may find it convenient to operate from a home/office inside that residence rather than going to the ham shack. > You'll be able to remote to it via a tablet, PC and I would expect an app to remote via a smartphone. My comments above are not to suggest that a Tablet/smartphone interface isn?t useful. I have SSDR on my iPad and iPhone. But I use it for short durations of time because I find that over time it is not as user friendly as the Maestro (due to the lack of a tuning knob) and is primarily used when I?m traveling and the only way to connect to the Flex is with what I have with me. The 8? screen of Maestro is a built-in tablet with key knobs provided along with audio interfaces necessary for operating. The great thing about both the Flex and the upcoming K4 is that both designs allow the operator to utilize whatever user interface is available. Flex has a multi-year head start on what they?ve developed, but I fully expect Elecraft to catch up relatively quickly given their track record on product development/release as well as taking ?lessons learned? from Flex?s experiences in creating and producing these kinds of products. FWIW, Barry Baines, WD4ASW Keller, TX > > 73, > Mark, WB9CIF > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of tobestep . > Sent: Friday, April 24, 2020 13:51 > To: Elecraft at mailman.qth.net > Subject: [Elecraft] K4/0 > > Hi Wayne: > Is there any additional information available on the K4/0? Will it be required for off-site remote operation or will there be some way to interact the with K4 and all controls via software on a remote computer? > Thanks and 73, > Steve VE3XO From david.n5dch at gmail.com Fri Apr 24 13:49:58 2020 From: david.n5dch at gmail.com (David Herring) Date: Fri, 24 Apr 2020 11:49:58 -0600 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: <51F4595F-EDEC-4E84-851A-9E28AA1E6222@gmail.com> I just got the PS back together and online again. I was astounded to discover that the transformer bolts were actually just shy of hand tight. I tightened them up and found that that quieted the thing down a lot. Not completely, but to a very large extent. The bolts holding the transformer to the chassis were already tight, but I loosened and retightened them anyway, JIC. Testing with a cardboard shim between the transformer and the lid didn?t make a difference in this case, but I thought it worth a shot anyway. I scoured the shack and the junque box and didn?t find anything such as rubber or anything else suitable for use a dampener under the transformer, so figured that could wait. But I did perform some more experiments and discovered that the desk itself was exacerbating the noise more than I realized. So, it took some doing but I managed to move the PS under the desk sitting on cinder blocks. I didn?t have to lengthen the power run or the ground doing it this way, and it?s now sitting on something with mass so that there is virtually no vibration transfer anywhere. Happy to report the thing is as quiet as a church mouse now. ;-) Thanks everyone?some really good information here? David, N5DCH From jim at audiosystemsgroup.com Fri Apr 24 14:05:33 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 24 Apr 2020 11:05:33 -0700 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <2743508E-E057-448D-89DB-CC599975C62D@gmail.com> Message-ID: <000cbac3-ef37-da1f-e9f6-719f52245054@audiosystemsgroup.com> On 4/24/2020 8:17 AM, Robert Sands wrote: > My Astron hums loudly only when the fax machine runs. Otherwise silent. > ?interaction puzzling. This strongly suggests one or more mis-wired outlets in your home. Things like phase (hot) and neutral reversal, neutral and ground reversal, or an additional bond between neutral and ground (there MUST be one at the power entry panel, but there must NOT be one anywhere else). I suggest that you start by checking every outlet with a good outlet tester. There's one other thing about Astron supplies that also might be the cause -- the green wire is not properly connected to the chassis inside the PSU, because the lug to which the green wire is soldered is insulated from the chassis by paint. Check for this by measuring between the green wire on the plug and the chassis with an Ohmmeter. You should see a dead short. If you don't, open it up, scrape the paint under that lug. While you're at it, remove the wire between V- and that lug. This problem is documented in http://k9yc.com/PowerSupplyBondingAndAudioDistortion.pdf 73, Jim K9YC From wes_n7ws at triconet.org Fri Apr 24 14:51:48 2020 From: wes_n7ws at triconet.org (Wes) Date: Fri, 24 Apr 2020 11:51:48 -0700 Subject: [Elecraft] K3/K3S receiver and high-precision frequencydetermination? In-Reply-To: <9e19e436-7065-aeaf-b86b-1b0f851d8996@inkbox.net> References: <9e19e436-7065-aeaf-b86b-1b0f851d8996@inkbox.net> Message-ID: <31ee2b6b-a8f6-d5b7-7847-41c8cdb47466@triconet.org> I don't recall that discussion you're talking about, but I can say the K3(s) has nowhere near that stability or resolution. (At least mine doesn't)? I don't know why Elecraft would design intentional instability into the radio. During a recent thread about the TCXO option, I did some quick-n-dirty measurements of my old K3 with standard reference and my newer K3S with the high stability reference.? I have a cable that I can run from the reference board to a frequency counter (BG7TBL FA-2 w/Bodnar GPSDO reference). For this I have to remove the top covers on the radios.? I found the old radio to be inaccurate but precise.? I could touch the crystal oscillator and see the frequency move from temperature effects but recover quickly. The TCXO was another story.? It moved around when I just laid a sheet of paper over the open box.? I didn't quantify this as I had to move on to other things; maybe later. The frequency conversion scheme in these radios is proprietary but it entails a lot of fussing around, with sideband switching, bandwidth adjusting, etc.? All of this AFAIK is done with DDSes which are not exact, they move in steps, albeit little steps, but steps nonetheless. If you want better you might look at the past results of the ARRL FMT (which coincidentally was held last night) to read the soapbox comments of what other folks are using. http://fmt.arrl.org/fmtresults.php Wes? N7WS On 4/24/2020 10:11 AM, Frank O'Donnell wrote: > Sometime (probably last year) I remember seeing a discussion of why the K3/K3S > receiver isn't suitable to do high-precision frequency measurement tests at > the level of hundredths of a Hertz. As I vaguely recall, the receiver is > designed so that its frequency actually varies a bit intentionally, and I > remember someone posting a plot demonstrating this. However, I'm striking out > on finding any of those posts. Can anyone either help with them, or point to > any other discussion/explanation on this? > > Thanks much, > > Frank K6FOD From rayalbers at gmail.com Fri Apr 24 15:11:47 2020 From: rayalbers at gmail.com (Ray Albers) Date: Fri, 24 Apr 2020 15:11:47 -0400 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: This thread started as my description of the failure of my Astron RS-20A power supply, caused by a bad electrolytic capacitor on the regulator circuit board. Several hams posted advice that a 20Amp supply was really too small for a K3/100, especially if running full power. This led me to order an Astron RS-35 supply. Chris Hoover, AI6KG, posted the below advice, warning about possible under- engineered rectifier diode arrangement in the RS-35A. Today the big brown truck delivered my RS-35M-AP (the M and AP signify it has meters and Anderson Power Poles on the front panel). Chris speculated that Astron may have made changes more recently. So the first thing I did was to open the case to check out the rectifier arrangement. Here's what I found: My unit bears Serial Number 2019110051. I am speculating that the leading digits 2019 signifies 2019 manufacture. Interestingly, the schematic that shipped with the unit says Rev.1, April 2020. The schematic shows two bridge rectifiers, DB3501. Two diodes are used from each bridge, and sure enough the diodes are paralleled. The DB3501 is spec'd at 35A, so that seems to be an improvement from the 25A diodes Chris mentioned. That's what's in the schematic. Inside the power supply, there are indeed two rectifier packages bolted to the floor, with heavy (maybe 14ga) solid wires connecting terminals in parallel. I'm unable to confirm what the rating of these diode packages is. They are not labeled DB3501. Instead, they say "Astron 5001," and one of them also bears some Chinese characters. So custom made for Astron? Well, I have ordered a 50Amp rated diode package, but am undecided if I will replace the diodes in the supply. 35 Amp rated diode bridges is an upgrade from the 25 diode bridges that Chris mentioned finding. It does puzzle me why, with 50A (and better) diodes being so cheap, would Astron do it this way? I can only think of two reasons: 1) We think having two packages bolted to the case will make for better heat dissipation of the total heat generated at max current and 2), the ever present, "because we've always done it this way!" Finally, I'll mention that, like my old RS-20A, I found the negative terminal bonded to the case. I consider this bad practice so I removed that bond. 73 to all Ray K2HYD On Sun, Apr 19, 2020 at 6:07 PM Christopher Hoover wrote: > You might want to replace the bridge rectifier in that new 35A power > supply. > > Yep, right out of the box. > > At some point, Astron started shipping RS-35A's with a 25A bridge > rectifier. They paralleled two out of four of the 25A diodes twice over > to make, supposedly, a pair of 50A diodes for center-tapped full-wave > rectification. That's not good engineering practice as the diodes in each > pair will not share current equally because of differences in Vf and > tempco. Once one blow, the other will blow shortly after. > > After I fixed my own RS-35A with this problem, I've helped several other > hams fix this same problem in theirs. Not a random sample, as this is just > folks on my local machine and in local clubs. > > You can get a 50A bridge in the same package for under $3. > > Perhaps Astron has fixed the problem since .... > > 73 de AI6KG -ch > > > > > On Thu, Apr 16, 2020 at 10:28 AM Ray Albers wrote: > >> Many to all who posted/responded to my recent post about an electrolytic >> capacitor failure in my power supply. Lots of very interesting reading >> about peoples' industry experiences - thank you! >> >> Several have pointed out that using a 20A supply with my K3/100 is pushing >> close to (or over!) the limit. Even though I am measuring just 16A at the >> power level I'm running (and not running anything but the K3 on this >> supply) I agree that I'm skirting the edges. So even though I've been >> getting away with it for a long time, this morning I ordered a 35A supply. >> I'll probably sleep better. >> >> 73 >> Ray K2HYD >> >> < >> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon >> > >> Virus-free. >> www.avast.com >> < >> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link >> > >> <#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 ch at murgatroid.com >> > Virus-free. www.avast.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> From rick.nk7i at gmail.com Fri Apr 24 15:20:18 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Fri, 24 Apr 2020 12:20:18 -0700 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: <1bf7e700-3e91-55d0-1c3b-d2c3a9d2b792@gmail.com> No!? That is the CORRECT thing to do; all grounds should equal ground.? You should reconnect that to the chassis ground, it is not a design flaw. Rick NK7I On 4/24/2020 12:11 PM, Ray Albers wrote: > Finally, I'll mention that, like my old RS-20A, I found the negative > terminal bonded to the case. I consider this bad practice so I removed that > bond. From dave at nk7z.net Fri Apr 24 15:37:01 2020 From: dave at nk7z.net (Dave Cole) Date: Fri, 24 Apr 2020 12:37:01 -0700 Subject: [Elecraft] K3/K3S receiver and high-precision frequency determination? In-Reply-To: <9e19e436-7065-aeaf-b86b-1b0f851d8996@inkbox.net> References: <9e19e436-7065-aeaf-b86b-1b0f851d8996@inkbox.net> Message-ID: <5bae7718-7df5-6557-1afd-20f9e7949582@nk7z.net> Hi, That was me... I used to use my Icom 756 Pro, to watch the Doppler on changes in the ionosphere, and on Meteors. The K3 uses steps to correct frequency, while the Icom did not. Analog vs. Digital corrections. Accuracy is not an issue, it is the steps... They destroy the continuity of the tracking... I should have some captures if you are interested. Email me off list and I'll send a set. The issue for me, I am looking for changes in frequency, on the order of sub-1 hz., not looking to get an exact reading on the frequency, just changes in frequency across minutes, not days or hours. I don't need to be dead on for frequency, but I do need to have a straight line that is affected by Doppler, and path changes. I can't get that with my K3 without those annoying steps. Keep in mind we are talking worst case 6 or 10 Hz., and the steps appear to be far, far, smaller than that... So... I have given this aspect of the hobby up. I did just get the TXCO installed along with a lot of extras on my K3, and the steps are longer, but still there... I will get some older rig that is analog in nature and return to that aspect of the hobby then... I was able to watch echos from aircraft between Eugene, and Portland Oregon, (about 100 miles apart), using the KGW TV, (Ch. 2), aural carrier as a source. I got the coolest traces of Doppler shifts caused by the aircraft movement. Meteors were far more interesting... Anyway, it is not an issue of Frequency accuracy, bit one of how the rig makes adjustments. I would love to just turn off the steps, and accept the drift over longer times. Oh well... Hope that helps... It is NOT the K3 having an issue with measuring frequency... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/24/20 10:11 AM, Frank O'Donnell wrote: > Sometime (probably last year) I remember seeing a discussion of why the > K3/K3S receiver isn't suitable to do high-precision frequency > measurement tests at the level of hundredths of a Hertz. As I vaguely > recall, the receiver is designed so that its frequency actually varies a > bit intentionally, and I remember someone posting a plot demonstrating > this. However, I'm striking out on finding any of those posts. Can > anyone either help with them, or point to any other > discussion/explanation on this? > > Thanks much, > > Frank K6FOD > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jim at audiosystemsgroup.com Fri Apr 24 15:43:36 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 24 Apr 2020 12:43:36 -0700 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: <1bf7e700-3e91-55d0-1c3b-d2c3a9d2b792@gmail.com> References: <1bf7e700-3e91-55d0-1c3b-d2c3a9d2b792@gmail.com> Message-ID: <77b56524-850e-63fc-fb4c-00b853d88240@audiosystemsgroup.com> Ray is correct. A study of the schematics for Astron linear supplies makes it clear that nothing in the circuitry is referenced to the chassis.The vast majority of PSUs are built so that V- can be bonded or not. V- is NOT ground, it is V-. And in our systems, it should NOT be bonded in the PSU. See my previously posted link for a discussion of WHY V- should not be bonded. 73, Jim K9YC On 4/24/2020 12:20 PM, Rick Bates, NK7I wrote: > No!? That is the CORRECT thing to do; all grounds should equal ground. > You should reconnect that to the chassis ground, it is not a design flaw. > > Rick NK7I > > On 4/24/2020 12:11 PM, Ray Albers wrote: >> Finally, I'll mention that, like my old RS-20A, I found the negative >> terminal bonded to the case. I consider this bad practice so I removed >> that >> bond. From hsherriff at reagan.com Fri Apr 24 15:54:27 2020 From: hsherriff at reagan.com (Harlan Sherriff) Date: Fri, 24 Apr 2020 15:54:27 -0400 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: <14560FDA-0890-4F78-8DFA-21198E3A105F@reagan.com> Another possibility is that is what they had on hand Sent from my iPhone > On Apr 24, 2020, at 3:13 PM, Ray Albers wrote: > > ?This thread started as my description of the failure of my Astron RS-20A > power supply, caused by a bad electrolytic capacitor on the regulator > circuit board. Several hams posted advice that a 20Amp supply was really > too small for a K3/100, especially if running full power. This led me to > order an Astron RS-35 supply. > > Chris Hoover, AI6KG, posted the below advice, warning about possible under- > engineered rectifier diode arrangement in the RS-35A. > > Today the big brown truck delivered my RS-35M-AP (the M and AP signify it > has meters and Anderson Power Poles on the front panel). Chris speculated > that Astron may have made changes more recently. So the first thing I did > was to open the case to check out the rectifier arrangement. Here's what I > found: > > My unit bears Serial Number 2019110051. I am speculating that the leading > digits 2019 signifies 2019 manufacture. Interestingly, the schematic that > shipped with the unit says Rev.1, April 2020. The schematic shows two > bridge rectifiers, DB3501. Two diodes are used from each bridge, and sure > enough the diodes are paralleled. The DB3501 is spec'd at 35A, so that > seems to be an improvement from the 25A diodes Chris mentioned. That's > what's in the schematic. Inside the power supply, there are indeed two > rectifier packages bolted to the floor, with heavy (maybe 14ga) solid wires > connecting terminals in parallel. I'm unable to confirm what the rating of > these diode packages is. They are not labeled DB3501. Instead, they say > "Astron 5001," and one of them also bears some Chinese characters. So > custom made for Astron? > > Well, I have ordered a 50Amp rated diode package, but am undecided if I > will replace the diodes in the supply. 35 Amp rated diode bridges is an > upgrade from the 25 diode bridges that Chris mentioned finding. It does > puzzle me why, with 50A (and better) diodes being so cheap, would Astron do > it this way? I can only think of two reasons: 1) We think having two > packages bolted to the case will make for better heat dissipation of the > total heat generated at max current and 2), the ever present, "because > we've always done it this way!" > > Finally, I'll mention that, like my old RS-20A, I found the negative > terminal bonded to the case. I consider this bad practice so I removed that > bond. > > 73 to all > Ray K2HYD > > >> On Sun, Apr 19, 2020 at 6:07 PM Christopher Hoover >> wrote: >> >> You might want to replace the bridge rectifier in that new 35A power >> supply. >> >> Yep, right out of the box. >> >> At some point, Astron started shipping RS-35A's with a 25A bridge >> rectifier. They paralleled two out of four of the 25A diodes twice over >> to make, supposedly, a pair of 50A diodes for center-tapped full-wave >> rectification. That's not good engineering practice as the diodes in each >> pair will not share current equally because of differences in Vf and >> tempco. Once one blow, the other will blow shortly after. >> >> After I fixed my own RS-35A with this problem, I've helped several other >> hams fix this same problem in theirs. Not a random sample, as this is just >> folks on my local machine and in local clubs. >> >> You can get a 50A bridge in the same package for under $3. >> >> Perhaps Astron has fixed the problem since .... >> >> 73 de AI6KG -ch >> >> >> >> >>> On Thu, Apr 16, 2020 at 10:28 AM Ray Albers wrote: >>> >>> Many to all who posted/responded to my recent post about an electrolytic >>> capacitor failure in my power supply. Lots of very interesting reading >>> about peoples' industry experiences - thank you! >>> >>> Several have pointed out that using a 20A supply with my K3/100 is pushing >>> close to (or over!) the limit. Even though I am measuring just 16A at the >>> power level I'm running (and not running anything but the K3 on this >>> supply) I agree that I'm skirting the edges. So even though I've been >>> getting away with it for a long time, this morning I ordered a 35A supply. >>> I'll probably sleep better. >>> >>> 73 >>> Ray K2HYD >>> >>> < >>> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon >>>> >>> Virus-free. >>> www.avast.com >>> < >>> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link >>>> >>> <#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 ch at murgatroid.com >>> >> > > 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 hsherriff at reagan.com From vfo77 at inkbox.net Fri Apr 24 16:03:29 2020 From: vfo77 at inkbox.net (Frank O'Donnell) Date: Fri, 24 Apr 2020 13:03:29 -0700 Subject: [Elecraft] K3/K3S receiver and high-precision frequency determination? In-Reply-To: <5bae7718-7df5-6557-1afd-20f9e7949582@nk7z.net> References: <9e19e436-7065-aeaf-b86b-1b0f851d8996@inkbox.net> <5bae7718-7df5-6557-1afd-20f9e7949582@nk7z.net> Message-ID: Dave, Thanks, that may have been the thread I was remembering. While searching old messages, I also came across a post from Ed Cole KL7UW from June 2018 in which he stated that, even if an external reference is connected, the K3 frequency "is established by the [internal] TCXO and the external reference merely performs a periodic check. ... the EXREF system does not phase-lock the TCXO.? It periodically corrects the error but the TCXO drifts normally between freg corrections ... . Now if you want to know why Elecraft chose periodic freq correction over true phase-locking, the answer is low LO phase noise.? Much harder to get low phase noise in a PLL than in a TCXO." 73, Frank K6FOD On 4/24/20 12:37 PM, Dave Cole wrote: > Hi, > > That was me...? I used to use my Icom 756 Pro, to watch the Doppler on > changes in the ionosphere, and on Meteors.? The K3 uses steps to > correct frequency, while the Icom did not.? Analog vs. Digital > corrections. > > Accuracy is not an issue, it is the steps...? They destroy the > continuity of the tracking...? I should have some captures if you are > interested.? Email me off list and I'll send a set. > > The issue for me, I am looking for changes in frequency, on the order > of sub-1 hz., not looking to get an exact reading on the frequency, > just changes in frequency across minutes, not days or hours. > > I don't need to be dead on for frequency, but I do need to have a > straight line that is affected by Doppler, and path changes.? I can't > get that with my K3 without those annoying steps. > > Keep in mind we are talking worst case 6 or 10 Hz., and the steps > appear to be far, far, smaller than that... > > So...? I have given this aspect of the hobby up.? I did just get the > TXCO installed along with a lot of extras on my K3, and the steps are > longer, but still there...? I will get some older rig that is analog > in nature and return to that aspect of the hobby then... > > I was able to watch echos from aircraft between Eugene, and Portland > Oregon, (about 100 miles apart), using the KGW TV, (Ch. 2), aural > carrier as a source.? I got the coolest traces of Doppler shifts > caused by the aircraft movement.? Meteors were far more > interesting...? Anyway, it is not an issue of Frequency accuracy, bit > one of how the rig makes adjustments.? I would love to just turn off > the steps, and accept the drift over longer times.? Oh well...? Hope > that helps...? It is NOT the K3 having an issue with measuring > frequency... > > 73, and thanks, > Dave (NK7Z) > > On 4/24/20 10:11 AM, Frank O'Donnell wrote: >> Sometime (probably last year) I remember seeing a discussion of why >> the K3/K3S receiver isn't suitable to do high-precision frequency >> measurement tests at the level of hundredths of a Hertz. As I vaguely >> recall, the receiver is designed so that its frequency actually >> varies a bit intentionally, and I remember someone posting a plot >> demonstrating this. However, I'm striking out on finding any of those >> posts. Can anyone either help with them, or point to any other >> discussion/explanation on this? >> >> Thanks much, >> >> Frank K6FOD From n0nb at n0nb.us Fri Apr 24 16:07:57 2020 From: n0nb at n0nb.us (Nate Bargmann) Date: Fri, 24 Apr 2020 15:07:57 -0500 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: Message-ID: <20200424200757.hsvrddsuc5j5wdgr@n0nb.us> * On 2020 24 Apr 11:50 -0500, inventor61 . wrote: > If someone has a better idea than mine for making these, I am all ears. No better idea. I've read in times past of someone sandwiching some compressible material between the transformer and the supply top cover to quell or reduce the hum. I have an RM-50M that hums in this manner and fortunately it is not loud enough to keep me from listening to the K3 at about 8 o'clock with external speakers. 73, Nate, N0NB -- "The optimist proclaims that we live in the best of all possible worlds. The pessimist fears this is true." Web: https://www.n0nb.us Projects: https://github.com/N0NB GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819 From KY5G at montac.com Fri Apr 24 16:36:09 2020 From: KY5G at montac.com (Clay Autery) Date: Fri, 24 Apr 2020 15:36:09 -0500 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: <20200424200757.hsvrddsuc5j5wdgr@n0nb.us> References: <20200424200757.hsvrddsuc5j5wdgr@n0nb.us> Message-ID: <764506ed-d6d6-c6ae-dc00-7375213de883@montac.com> Actually, I have had MUCH more success in isolating the transformer mechanically from the chassis with the aforementioned Sorbathane. https://www.sorbothane.com/Data/Sites/31/pdfs/product-guides/Sorbothane-SPG.pdf <---- catalog of standard products. I use isolation studs.... they have metal fasteners to attach to chassis and interior components (transformer primarily), but there is a mechanical decoupling via the Sorbothane material. Alternatively, you could use a sheet of Sorbothane underneath the xformer foorprint and a sheet between the xformer hold down clamp and the xformer body.? The principle is 1) Isolate the xformer from the metal chassis... 2) Include enough material mass at the right durometer to convert the vibrations (and audible accompaniment) into heat, et al. Used to use small isolation studs to mount the 10k RPM Barracuda drives in 10-drive arrays in large CalPC steel towers....? Made them whisper quiet AND protected the drives from shock as well. 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 04/24/20 15:07, Nate Bargmann wrote: > * On 2020 24 Apr 11:50 -0500, inventor61 . wrote: >> If someone has a better idea than mine for making these, I am all ears. > No better idea. I've read in times past of someone sandwiching some > compressible material between the transformer and the supply top cover > to quell or reduce the hum. I have an RM-50M that hums in this manner > and fortunately it is not loud enough to keep me from listening to the > K3 at about 8 o'clock with external speakers. > > 73, Nate, N0NB > From dave at nk7z.net Fri Apr 24 17:09:52 2020 From: dave at nk7z.net (Dave Cole) Date: Fri, 24 Apr 2020 14:09:52 -0700 Subject: [Elecraft] K3/K3S receiver and high-precision frequency determination? In-Reply-To: References: <9e19e436-7065-aeaf-b86b-1b0f851d8996@inkbox.net> <5bae7718-7df5-6557-1afd-20f9e7949582@nk7z.net> Message-ID: <872bc941-f9af-c332-b3e2-a4f6d5b4484b@nk7z.net> Thanks for the explanation, I have always wondered why... I'm good with low phase noise, Low phase noise means less splatter from radios! All the folks close to me have purchased K3s, so even though they are close, it is not too bad. I had a friend that lived 700 feet from me, and had a Collins S-Line, including the KW... It was horrid for being far too wide... He switched to a K3, and for the most part things were far better. Prior to the switch, I could not operate on the same band when he operated, after he switched to the K3, I could! I took P3 screen shots of the change from old to new synthesizer, as I changed to the new one, and as he changed to the new one. It is totally obvious how much better the new synthesizer is than the old... See: https://www.nk7z.net/k3/ for the screen shots. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/24/20 1:03 PM, Frank O'Donnell wrote: > Dave, > > Thanks, that may have been the thread I was remembering. > > While searching old messages, I also came across a post from Ed Cole > KL7UW from June 2018 in which he stated that, even if an external > reference is connected, the K3 frequency "is established by the > [internal] TCXO and the external reference merely performs a periodic > check. ... the EXREF system does not phase-lock the TCXO.? It > periodically corrects the error but the TCXO drifts normally between > freg corrections ... . Now if you want to know why Elecraft chose > periodic freq correction over true phase-locking, the answer is low LO > phase noise.? Much harder to get low phase noise in a PLL than in a TCXO." > > 73, > > Frank K6FOD > > > On 4/24/20 12:37 PM, Dave Cole wrote: >> Hi, >> >> That was me...? I used to use my Icom 756 Pro, to watch the Doppler on >> changes in the ionosphere, and on Meteors.? The K3 uses steps to >> correct frequency, while the Icom did not.? Analog vs. Digital >> corrections. >> >> Accuracy is not an issue, it is the steps...? They destroy the >> continuity of the tracking...? I should have some captures if you are >> interested.? Email me off list and I'll send a set. >> >> The issue for me, I am looking for changes in frequency, on the order >> of sub-1 hz., not looking to get an exact reading on the frequency, >> just changes in frequency across minutes, not days or hours. >> >> I don't need to be dead on for frequency, but I do need to have a >> straight line that is affected by Doppler, and path changes.? I can't >> get that with my K3 without those annoying steps. >> >> Keep in mind we are talking worst case 6 or 10 Hz., and the steps >> appear to be far, far, smaller than that... >> >> So...? I have given this aspect of the hobby up.? I did just get the >> TXCO installed along with a lot of extras on my K3, and the steps are >> longer, but still there...? I will get some older rig that is analog >> in nature and return to that aspect of the hobby then... >> >> I was able to watch echos from aircraft between Eugene, and Portland >> Oregon, (about 100 miles apart), using the KGW TV, (Ch. 2), aural >> carrier as a source.? I got the coolest traces of Doppler shifts >> caused by the aircraft movement.? Meteors were far more >> interesting...? Anyway, it is not an issue of Frequency accuracy, bit >> one of how the rig makes adjustments.? I would love to just turn off >> the steps, and accept the drift over longer times.? Oh well...? Hope >> that helps...? It is NOT the K3 having an issue with measuring >> frequency... >> >> 73, and thanks, >> Dave (NK7Z) >> >> On 4/24/20 10:11 AM, Frank O'Donnell wrote: >>> Sometime (probably last year) I remember seeing a discussion of why >>> the K3/K3S receiver isn't suitable to do high-precision frequency >>> measurement tests at the level of hundredths of a Hertz. As I vaguely >>> recall, the receiver is designed so that its frequency actually >>> varies a bit intentionally, and I remember someone posting a plot >>> demonstrating this. However, I'm striking out on finding any of those >>> posts. Can anyone either help with them, or point to any other >>> discussion/explanation on this? >>> >>> Thanks much, >>> >>> Frank K6FOD > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donovanf at starpower.net Fri Apr 24 17:15:35 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 24 Apr 2020 17:15:35 -0400 (EDT) Subject: [Elecraft] K3/K3S receiver and high-precision frequency determination? In-Reply-To: <872bc941-f9af-c332-b3e2-a4f6d5b4484b@nk7z.net> Message-ID: <1110743937.2218518.1587762935397.JavaMail.root@starpower.net> Each of these frequency jumps causes phase discontinuity that is likely to cause bit errors in during PSK modulation and demodulation. How often do they occur? 73 Frank W3LPL ----- Original Message ----- From: "Dave Cole" To: elecraft at mailman.qth.net Sent: Friday, April 24, 2020 9:09:52 PM Subject: Re: [Elecraft] K3/K3S receiver and high-precision frequency determination? Thanks for the explanation, I have always wondered why... I'm good with low phase noise, Low phase noise means less splatter from radios! All the folks close to me have purchased K3s, so even though they are close, it is not too bad. I had a friend that lived 700 feet from me, and had a Collins S-Line, including the KW... It was horrid for being far too wide... He switched to a K3, and for the most part things were far better. Prior to the switch, I could not operate on the same band when he operated, after he switched to the K3, I could! I took P3 screen shots of the change from old to new synthesizer, as I changed to the new one, and as he changed to the new one. It is totally obvious how much better the new synthesizer is than the old... See: https://www.nk7z.net/k3/ for the screen shots. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/24/20 1:03 PM, Frank O'Donnell wrote: > Dave, > > Thanks, that may have been the thread I was remembering. > > While searching old messages, I also came across a post from Ed Cole > KL7UW from June 2018 in which he stated that, even if an external > reference is connected, the K3 frequency "is established by the > [internal] TCXO and the external reference merely performs a periodic > check. ... the EXREF system does not phase-lock the TCXO. It > periodically corrects the error but the TCXO drifts normally between > freg corrections ... . Now if you want to know why Elecraft chose > periodic freq correction over true phase-locking, the answer is low LO > phase noise. Much harder to get low phase noise in a PLL than in a TCXO." > > 73, > > Frank K6FOD > > > On 4/24/20 12:37 PM, Dave Cole wrote: >> Hi, >> >> That was me... I used to use my Icom 756 Pro, to watch the Doppler on >> changes in the ionosphere, and on Meteors. The K3 uses steps to >> correct frequency, while the Icom did not. Analog vs. Digital >> corrections. >> >> Accuracy is not an issue, it is the steps... They destroy the >> continuity of the tracking... I should have some captures if you are >> interested. Email me off list and I'll send a set. >> >> The issue for me, I am looking for changes in frequency, on the order >> of sub-1 hz., not looking to get an exact reading on the frequency, >> just changes in frequency across minutes, not days or hours. >> >> I don't need to be dead on for frequency, but I do need to have a >> straight line that is affected by Doppler, and path changes. I can't >> get that with my K3 without those annoying steps. >> >> Keep in mind we are talking worst case 6 or 10 Hz., and the steps >> appear to be far, far, smaller than that... >> >> So... I have given this aspect of the hobby up. I did just get the >> TXCO installed along with a lot of extras on my K3, and the steps are >> longer, but still there... I will get some older rig that is analog >> in nature and return to that aspect of the hobby then... >> >> I was able to watch echos from aircraft between Eugene, and Portland >> Oregon, (about 100 miles apart), using the KGW TV, (Ch. 2), aural >> carrier as a source. I got the coolest traces of Doppler shifts >> caused by the aircraft movement. Meteors were far more >> interesting... Anyway, it is not an issue of Frequency accuracy, bit >> one of how the rig makes adjustments. I would love to just turn off >> the steps, and accept the drift over longer times. Oh well... Hope >> that helps... It is NOT the K3 having an issue with measuring >> frequency... >> >> 73, and thanks, >> Dave (NK7Z) >> >> On 4/24/20 10:11 AM, Frank O'Donnell wrote: >>> Sometime (probably last year) I remember seeing a discussion of why >>> the K3/K3S receiver isn't suitable to do high-precision frequency >>> measurement tests at the level of hundredths of a Hertz. As I vaguely >>> recall, the receiver is designed so that its frequency actually >>> varies a bit intentionally, and I remember someone posting a plot >>> demonstrating this. However, I'm striking out on finding any of those >>> posts. Can anyone either help with them, or point to any other >>> discussion/explanation on this? >>> >>> Thanks much, >>> >>> Frank K6FOD > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donovanf at starpower.net From n6jpa.1 at gmail.com Fri Apr 24 17:15:55 2020 From: n6jpa.1 at gmail.com (Keith N6JPA) Date: Fri, 24 Apr 2020 14:15:55 -0700 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: Message-ID: <6be62f06-d739-6812-2d62-fd892035509d@gmail.com> You should purchase an Astron Switching power supply. They are well made and filtered properly. I use a SS-25M that has a fan that runs at times, but it is not too loud. On 4/24/2020 9:48 AM, inventor61 . wrote: > I have a CAD design for a replacement wooden top for the RS-35, -35M, and > VS-35M Astron supplies. This top cover looks exactly like the factory > steel cover, uses the same mounting holes, and even has an exact duplicate > of the vent slots. > The material that worked out best was a HDF board. It can be painted > easily in any color including the factory textured black. > The design is intended to be produced on a CNC machine like a full size > ShopBot, as were the several prototypes, which really turned out splendidly. > It of course solved the problem of the eddy currents in the steel lid, > which for this size Astron is too close to the field of the power > transformer. These currents cause the acoustic noise. > I was planning on bringing this replacement top cover to the ham operator > market last year but I ran into production challenges. It's simply too > costly to produce these, ship them, and sell at an acceptable cost even > ignoring making a worthwhile margin. > > If someone has a better idea than mine for making these, I am all ears. > > Steve KZ1X > From dave at nk7z.net Fri Apr 24 17:23:28 2020 From: dave at nk7z.net (Dave Cole) Date: Fri, 24 Apr 2020 14:23:28 -0700 Subject: [Elecraft] K3/K3S receiver and high-precision frequency determination? In-Reply-To: <1110743937.2218518.1587762935397.JavaMail.root@starpower.net> References: <1110743937.2218518.1587762935397.JavaMail.root@starpower.net> Message-ID: With the TXO on the order of one every few minutes, without on the order two a minute or so. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/24/20 2:15 PM, donovanf at starpower.net wrote: > Each of these frequency jumps causes phase discontinuity that is likely > to cause bit errors in during PSK modulation and demodulation. > > How often do they occur? > > 73 > Frank > W3LPL > > ------------------------------------------------------------------------ > *From: *"Dave Cole" > *To: *elecraft at mailman.qth.net > *Sent: *Friday, April 24, 2020 9:09:52 PM > *Subject: *Re: [Elecraft] K3/K3S receiver and high-precision frequency > determination? > > Thanks for the explanation, I have always wondered why... ?I'm good with > low phase noise, Low phase noise means less splatter from radios! > > All the folks close to me have purchased K3s, so even though they are > close, it is not too bad. ?I had a friend that lived 700 feet from me, > and had a Collins S-Line, including the KW... ?It was horrid for being > far too wide... ?He switched to a K3, and for the most part things were > far better. ?Prior to the switch, I could not operate on the same band > when he operated, after he switched to the K3, I could! > > I took P3 screen shots of the change from old to new synthesizer, as I > changed to the new one, and as he changed to the new one. ?It is totally > obvious how much better the new synthesizer is than the old... ?See: > > https://www.nk7z.net/k3/ > > for the screen shots. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/24/20 1:03 PM, Frank O'Donnell wrote: > > Dave, > > > > Thanks, that may have been the thread I was remembering. > > > > While searching old messages, I also came across a post from Ed Cole > > KL7UW from June 2018 in which he stated that, even if an external > > reference is connected, the K3 frequency "is established by the > > [internal] TCXO and the external reference merely performs a periodic > > check. ... the EXREF system does not phase-lock the TCXO.? It > > periodically corrects the error but the TCXO drifts normally between > > freg corrections ... . Now if you want to know why Elecraft chose > > periodic freq correction over true phase-locking, the answer is low LO > > phase noise.? Much harder to get low phase noise in a PLL than in a > TCXO." > > > > 73, > > > > Frank K6FOD > > > > > > On 4/24/20 12:37 PM, Dave Cole wrote: > >> Hi, > >> > >> That was me...? I used to use my Icom 756 Pro, to watch the Doppler on > >> changes in the ionosphere, and on Meteors.? The K3 uses steps to > >> correct frequency, while the Icom did not.? Analog vs. Digital > >> corrections. > >> > >> Accuracy is not an issue, it is the steps...? They destroy the > >> continuity of the tracking...? I should have some captures if you are > >> interested.? Email me off list and I'll send a set. > >> > >> The issue for me, I am looking for changes in frequency, on the order > >> of sub-1 hz., not looking to get an exact reading on the frequency, > >> just changes in frequency across minutes, not days or hours. > >> > >> I don't need to be dead on for frequency, but I do need to have a > >> straight line that is affected by Doppler, and path changes.? I can't > >> get that with my K3 without those annoying steps. > >> > >> Keep in mind we are talking worst case 6 or 10 Hz., and the steps > >> appear to be far, far, smaller than that... > >> > >> So...? I have given this aspect of the hobby up.? I did just get the > >> TXCO installed along with a lot of extras on my K3, and the steps are > >> longer, but still there...? I will get some older rig that is analog > >> in nature and return to that aspect of the hobby then... > >> > >> I was able to watch echos from aircraft between Eugene, and Portland > >> Oregon, (about 100 miles apart), using the KGW TV, (Ch. 2), aural > >> carrier as a source.? I got the coolest traces of Doppler shifts > >> caused by the aircraft movement.? Meteors were far more > >> interesting...? Anyway, it is not an issue of Frequency accuracy, bit > >> one of how the rig makes adjustments.? I would love to just turn off > >> the steps, and accept the drift over longer times.? Oh well...? Hope > >> that helps...? It is NOT the K3 having an issue with measuring > >> frequency... > >> > >> 73, and thanks, > >> Dave (NK7Z) > >> > >> On 4/24/20 10:11 AM, Frank O'Donnell wrote: > >>> Sometime (probably last year) I remember seeing a discussion of why > >>> the K3/K3S receiver isn't suitable to do high-precision frequency > >>> measurement tests at the level of hundredths of a Hertz. As I vaguely > >>> recall, the receiver is designed so that its frequency actually > >>> varies a bit intentionally, and I remember someone posting a plot > >>> demonstrating this. However, I'm striking out on finding any of those > >>> posts. Can anyone either help with them, or point to any other > >>> discussion/explanation on this? > >>> > >>> Thanks much, > >>> > >>> Frank K6FOD > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 donovanf at starpower.net > From k2asp at kanafi.org Fri Apr 24 17:50:58 2020 From: k2asp at kanafi.org (Phil Kane) Date: Fri, 24 Apr 2020 14:50:58 -0700 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: <6be62f06-d739-6812-2d62-fd892035509d@gmail.com> References: <6be62f06-d739-6812-2d62-fd892035509d@gmail.com> Message-ID: <68a5d4c7-8abb-b179-0496-dff9d60ac5c1@kanafi.org> On 4/24/2020 2:15 PM, Keith N6JPA wrote: > You should purchase an Astron Switching power supply. They are well > made and filtered properly. I use a SS-25M that has a fan that runs at > times, but it is not too loud. I use a SS-50M and "not too loud" is a matter of judgment. It is located on top of my power distribution rack, about 6 feet beside me and 2 feet above my head. The fan kicks on every time any of my transceivers goes into transmit mode in full power, which is distracting as well as the fan noise gets picked up by the desk mic. But it is far more reliable than the MFJ supply that it replaced. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From alorona at sbcglobal.net Fri Apr 24 18:01:10 2020 From: alorona at sbcglobal.net (Al Lorona) Date: Fri, 24 Apr 2020 22:01:10 +0000 (UTC) Subject: [Elecraft] K3/K3S receiver and high-precision frequencydetermination? In-Reply-To: <31ee2b6b-a8f6-d5b7-7847-41c8cdb47466@triconet.org> References: <9e19e436-7065-aeaf-b86b-1b0f851d8996@inkbox.net> <31ee2b6b-a8f6-d5b7-7847-41c8cdb47466@triconet.org> Message-ID: <1278246629.12479.1587765670532@mail.yahoo.com> It's a good thing I didn't carry through on my plan to operate the K3 with a paper in the place of the top cover! That was a close call. Seriously, don't *all* DDSs/PLLs/synthesizers/SDRs (and, thus, all modern transceivers) tune in steps? How is the tuning step related to the stability of an oscillator? I'll answer that: it isn't. Al? W6LX From dmboresz at gmail.com Fri Apr 24 19:21:12 2020 From: dmboresz at gmail.com (Dale Boresz) Date: Fri, 24 Apr 2020 19:21:12 -0400 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: <20200424200757.hsvrddsuc5j5wdgr@n0nb.us> References: <20200424200757.hsvrddsuc5j5wdgr@n0nb.us> Message-ID: I have a stack of QST magazines from 1996 resting on top of my Astron VS-35M. No transformer hum at all! Have not tried magazines from any other years, so YMMV... 73, Dale - WA8SRA On Fri, Apr 24, 2020 at 4:09 PM Nate Bargmann wrote: > * On 2020 24 Apr 11:50 -0500, inventor61 . wrote: > > If someone has a better idea than mine for making these, I am all ears. > > No better idea. I've read in times past of someone sandwiching some > compressible material between the transformer and the supply top cover > to quell or reduce the hum. I have an RM-50M that hums in this manner > and fortunately it is not loud enough to keep me from listening to the > K3 at about 8 o'clock with external speakers. > > 73, Nate, N0NB > > -- > > "The optimist proclaims that we live in the best of all > possible worlds. The pessimist fears this is true." > > Web: https://www.n0nb.us > Projects: https://github.com/N0NB > GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dmboresz at gmail.com > From donovanf at starpower.net Fri Apr 24 19:35:02 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Fri, 24 Apr 2020 19:35:02 -0400 (EDT) Subject: [Elecraft] K3/K3S receiver and high-precision frequency determination? In-Reply-To: Message-ID: <1019291888.2262701.1587771302910.JavaMail.root@starpower.net> In 1969 -- right out of college and in my first EE job, I was tasked to evaluate the technical performance of Sylvania's new R-1414 receiver that was designed and manufactured to be the replacement for thousands of R-390 and R-390A receivers then very widely used by the U.S. military. It seemed like an easy low risk assignment for this newly minted 2nd Lieutentant under the supervision of my very experienced senior EE boss, who coincidentally was a PVRC member (W3GN SK). A few hundred R-1414s had been built for evaluation mostly by R-390 users prior to full scale production. R-390 users used it almost exclusively for CW Morse, FSK RTTY and SSB voice. Without exception all of their user evaluations came in very positive. My boss W3GN was very pleased as were his superiors. www.myvintagetv.com/posts/r1414.jpg Everything was looking good during my technical evaluations until I decided -- on my own initiative -- to set up a bit-error test using a 12 channel orthogonal frequency-division multiplex (OFDM) modem (a high tech HF modem in 1969) modulating an SSB signal generator then feeding the antenna input of t he R-1414. The audio output of the R-1414 then fed back into the OFDM modem. I used a nifty new DEC PDP-8 minicomputer (remember them?) to evaluate the bit-error performance of the OFDM signal passing through the R-1414. Much to my surprise I could never get better than a 0.1 percent error rate no matter how I configured the R-1414 and no matter how ideal the SNR was. I managed to borrow a brand new Collins 651S-1 receiver from another laboratory and -- much to my surprise -- that receiver easily achieved orders of magnitude fewer errors, just as you would expect. W3GN's superiors were very, very unhappy with my test report... I'm sure my work would have been blown off had a ham not been my boss. So why couldn't the R-1414 achieve acceptable error rates with OFDM signals? To make a long story short, a design decision had been made to use automatic frequency control (AFC) to control the R-1414 master oscillator. The AFC operated several times per second, causing phase discontinuities in the OFDM signal. On the other hand, the Collins 651S-1 used a very well designed phase locked loop that caused no apparent bit errors at all. The AFC scheme was so fundamental to the design of the R-1414 that a fix was impossible. To make a long story short, the military's plan to purchase thousands of of Sylvania R-1414s was scuttled by the technical work of a barely 21 year old 2nd Lieutenant. R-390s continued to be used for another ten years and several thousand Collins 651S-1s and other commercial HF receivers were purchased in the interim until the R-390 and other interim receivers were finally replaced by thousands of Racal RA6790/GM receivers starting in 1980. radioaficion.com/HamNews/images/02-2012/ra6790gm_4-20120212191732.jpg Thankfully the frequency jumps in the K3 are much less frequent than in the R-1414 and apparently do not cause problems for digital signals. 73 Frank W3LPL ----- Original Message ----- From: "Dave Cole" To: donovanf at starpower.net, elecraft at mailman.qth.net Sent: Friday, April 24, 2020 9:23:28 PM Subject: Re: [Elecraft] K3/K3S receiver and high-precision frequency determination? With the TXO on the order of one every few minutes, without on the order two a minute or so. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/24/20 2:15 PM, donovanf at starpower.net wrote: > Each of these frequency jumps causes phase discontinuity that is likely > to cause bit errors in during PSK modulation and demodulation. > > How often do they occur? > > 73 > Frank > W3LPL > > ------------------------------------------------------------------------ > *From: *"Dave Cole" > *To: *elecraft at mailman.qth.net > *Sent: *Friday, April 24, 2020 9:09:52 PM > *Subject: *Re: [Elecraft] K3/K3S receiver and high-precision frequency > determination? > > Thanks for the explanation, I have always wondered why... I'm good with > low phase noise, Low phase noise means less splatter from radios! > > All the folks close to me have purchased K3s, so even though they are > close, it is not too bad. I had a friend that lived 700 feet from me, > and had a Collins S-Line, including the KW... It was horrid for being > far too wide... He switched to a K3, and for the most part things were > far better. Prior to the switch, I could not operate on the same band > when he operated, after he switched to the K3, I could! > > I took P3 screen shots of the change from old to new synthesizer, as I > changed to the new one, and as he changed to the new one. It is totally > obvious how much better the new synthesizer is than the old... See: > > https://www.nk7z.net/k3/ > > for the screen shots. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 4/24/20 1:03 PM, Frank O'Donnell wrote: > > Dave, > > > > Thanks, that may have been the thread I was remembering. > > > > While searching old messages, I also came across a post from Ed Cole > > KL7UW from June 2018 in which he stated that, even if an external > > reference is connected, the K3 frequency "is established by the > > [internal] TCXO and the external reference merely performs a periodic > > check. ... the EXREF system does not phase-lock the TCXO. It > > periodically corrects the error but the TCXO drifts normally between > > freg corrections ... . Now if you want to know why Elecraft chose > > periodic freq correction over true phase-locking, the answer is low LO > > phase noise. Much harder to get low phase noise in a PLL than in a > TCXO." > > > > 73, > > > > Frank K6FOD > > > > > > On 4/24/20 12:37 PM, Dave Cole wrote: > >> Hi, > >> > >> That was me... I used to use my Icom 756 Pro, to watch the Doppler on > >> changes in the ionosphere, and on Meteors. The K3 uses steps to > >> correct frequency, while the Icom did not. Analog vs. Digital > >> corrections. > >> > >> Accuracy is not an issue, it is the steps... They destroy the > >> continuity of the tracking... I should have some captures if you are > >> interested. Email me off list and I'll send a set. > >> > >> The issue for me, I am looking for changes in frequency, on the order > >> of sub-1 hz., not looking to get an exact reading on the frequency, > >> just changes in frequency across minutes, not days or hours. > >> > >> I don't need to be dead on for frequency, but I do need to have a > >> straight line that is affected by Doppler, and path changes. I can't > >> get that with my K3 without those annoying steps. > >> > >> Keep in mind we are talking worst case 6 or 10 Hz., and the steps > >> appear to be far, far, smaller than that... > >> > >> So... I have given this aspect of the hobby up. I did just get the > >> TXCO installed along with a lot of extras on my K3, and the steps are > >> longer, but still there... I will get some older rig that is analog > >> in nature and return to that aspect of the hobby then... > >> > >> I was able to watch echos from aircraft between Eugene, and Portland > >> Oregon, (about 100 miles apart), using the KGW TV, (Ch. 2), aural > >> carrier as a source. I got the coolest traces of Doppler shifts > >> caused by the aircraft movement. Meteors were far more > >> interesting... Anyway, it is not an issue of Frequency accuracy, bit > >> one of how the rig makes adjustments. I would love to just turn off > >> the steps, and accept the drift over longer times. Oh well... Hope > >> that helps... It is NOT the K3 having an issue with measuring > >> frequency... > >> > >> 73, and thanks, > >> Dave (NK7Z) > >> > >> On 4/24/20 10:11 AM, Frank O'Donnell wrote: > >>> Sometime (probably last year) I remember seeing a discussion of why > >>> the K3/K3S receiver isn't suitable to do high-precision frequency > >>> measurement tests at the level of hundredths of a Hertz. As I vaguely > >>> recall, the receiver is designed so that its frequency actually > >>> varies a bit intentionally, and I remember someone posting a plot > >>> demonstrating this. However, I'm striking out on finding any of those > >>> posts. Can anyone either help with them, or point to any other > >>> discussion/explanation on this? > >>> > >>> Thanks much, > >>> > >>> Frank K6FOD > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 donovanf at starpower.net > From b.denley at comcast.net Fri Apr 24 19:43:35 2020 From: b.denley at comcast.net (Brian Denley) Date: Fri, 24 Apr 2020 19:43:35 -0400 Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <003201d61a3e$28b89bd0$7a29d370$@erols.com> References: <003201d61a3e$28b89bd0$7a29d370$@erols.com> Message-ID: <29E31AA6-423D-497C-AB4F-B5E675A25B5B@comcast.net> The International Amateur Radio Union (IARU) Region 1 agreed on a technical recommendation for S Meter calibration for HF and VHF/UHF transceivers in 1981. Why go back to 1947? Brian Denley KB1VBF Sent from my iPad > On Apr 24, 2020, at 6:30 PM, Charlie T wrote: > > ?S-meters should be calibrated with 9 signal levels: > > *Faint - Signal barely perceptible > *Very weak signals > *Weak signals > *Fair signals > *Fairly good signals > *Good signals > *Moderately strong signals > *Strong signals > *Extremely strong signals > > (Reprinted from the 1947 ARRL Handbook, page 466 "RST System of Signal Reports") > > 73, Charlie k3ICH > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of John Stengrevics > Sent: Friday, April 24, 2020 7:49 AM > To: Morgan Bailey > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] K4 S-meter characteristics > > Agree completely. I find all S meters to be totally inaccurate and next to useless, including my K3S?. > >> On Apr 24, 2020, at 7:43 AM, Morgan Bailey wrote: >> >> Maybe it is just me but, Turn the radio on, adjust the audio/rf/agc >> controls, hear the station, work him, move on. I dont need a fancy dbm >> or an iconic number of engineering controls, to say what the dbm was >> when I worked the guy. When you contest, who the hell cares, hear him, >> work him, move on. In simple terms, I just want selectivity, and no >> agc pumping and no front in desensing from a 40 db over nine station 2khz away. >> >> Im looking forward to a quiet front end, that keeps me from having to >> listen to 48 hours of static that is generated by the stages with in >> the radio. Love my K3S, great radio. Simple to operate once you learn >> its controls and never has failed me. >> >> Looking forward to K4 delivery. >> >> Vy 73, >> Morgan Bailey NJ8M >> >> > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to b.denley at comcast.net From ve3nr at bell.net Fri Apr 24 20:27:37 2020 From: ve3nr at bell.net (Bert) Date: Fri, 24 Apr 2020 20:27:37 -0400 Subject: [Elecraft] KX3 with older Heil headset Message-ID: <2783d08e-8f21-7d45-4563-d575f120caed@bell.net> Hi all, I want to use an older Heil headset, with an HC-4 element, with my KX3. Despite having tried different settings for the microphone, I can't make it work. Your ideas and suggestions would be much appreciated. Thanks! Bert VE3NR From chandlerusm at gmail.com Fri Apr 24 20:35:35 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Fri, 24 Apr 2020 19:35:35 -0500 Subject: [Elecraft] K3S Poor CW reported Message-ID: <5ea385d8.1c69fb81.e5172.d0a6@mx.google.com> From chandlerusm at gmail.com Fri Apr 24 20:46:37 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Fri, 24 Apr 2020 19:46:37 -0500 Subject: [Elecraft] K3S Poor CW reported In-Reply-To: <5ea385d8.1c69fb81.e5172.d0a6@mx.google.com> References: <5ea385d8.1c69fb81.e5172.d0a6@mx.google.com> Message-ID: My mistake. For mentions of KPA100 please read KPA3 100 watt amplifier! On Fri, Apr 24, 2020 at 19:35 Chuck Chandler wrote: > While I wait for my Winkeyer to be delivered I?m doing more testing, as I > can. We are moving in about a month and much of my stuff is packed > already. Some of the descriptions described a sort of ringing noise, maybe > a very slow CW rise/fall time. I?ve got a sked with a fellow tomorrow who > should be able to measure my dits and dahs. But, I also have a Panadapter > TX Sensor in my P3, and doing some CQ?s on 30M I noticed a peculiarity. > > > > When the K3 is driving the KPA500 with under 12W, so the KPA100 is out of > line, the CW waveform displayed on the P3 looks pretty normal. If the K3S > is set to drive with over 12W, so the KPA100 is in use, the CW waveform on > the P3 is very broad, just as described. > > > > I?m beginning to think the KPA100 may be a potential problem. I have > photos of the two waveforms, but I?m pretty sure attachments aren?t allowed > here. I?ve posted them to my QRZ page at https://www.qrz.com/db/WS1L if > anyone cares to take a look and see what they think. > > > > Many thanks to all who have sent suggestions and offers of help. I?m > hopeful this will lead to more suggestions. > > > > 73 de Chuck, WS1L > > ================ > > > Chuck Chandler > chandlerusm at gmail.com > ================ > > > -- Sent from Gmail Mobile Chuck Chandler chandlerusm at gmail.com From dave at nk7z.net Fri Apr 24 21:04:19 2020 From: dave at nk7z.net (Dave Cole) Date: Fri, 24 Apr 2020 18:04:19 -0700 Subject: [Elecraft] K3/K3S receiver and high-precision frequency determination? In-Reply-To: <1019291888.2262701.1587771302910.JavaMail.root@starpower.net> References: <1019291888.2262701.1587771302910.JavaMail.root@starpower.net> Message-ID: <3eb91220-e366-e58e-d407-a7ea0f5e43f0@nk7z.net> What a fascinating story! Thank you for sharing. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/24/20 4:35 PM, donovanf at starpower.net wrote: > In 1969 -- right out of college... From vfo77 at inkbox.net Fri Apr 24 21:13:59 2020 From: vfo77 at inkbox.net (Frank O'Donnell) Date: Fri, 24 Apr 2020 18:13:59 -0700 Subject: [Elecraft] Frequency display on P3? Message-ID: <164625ff-164c-bed0-75b9-25d9f8603a1b@inkbox.net> Here's what I'm sure is a beginner question. If I feed an accurate signal from a waveform generator into my K3S, on the P3 it appears right about 120 Hz higher than the actual frequency. This seems to be independent of the mode the K3S is in. What causes that? I noticed this when I had my K3S/P3 running while working the ARRL Frequency Measurement Test with other gear, and was curious about it. Thanks much, Frank K6FOD From m.matthew.george at gmail.com Fri Apr 24 21:27:05 2020 From: m.matthew.george at gmail.com (M. George) Date: Fri, 24 Apr 2020 19:27:05 -0600 Subject: [Elecraft] Frequency display on P3? In-Reply-To: <164625ff-164c-bed0-75b9-25d9f8603a1b@inkbox.net> References: <164625ff-164c-bed0-75b9-25d9f8603a1b@inkbox.net> Message-ID: It sounds like you need to do the frequency calibration as documented on page 39 of the manual : https://ftp.elecraft.com/P3/Manuals%20Downloads/E740152%20P3%20Owner's%20man%20Rev%20H1.pdf Max NG7M On Fri, Apr 24, 2020 at 7:14 PM Frank O'Donnell wrote: > Here's what I'm sure is a beginner question. > > If I feed an accurate signal from a waveform generator into my K3S, on > the P3 it appears right about 120 Hz higher than the actual frequency. > This seems to be independent of the mode the K3S is in. What causes that? > > I noticed this when I had my K3S/P3 running while working the ARRL > Frequency Measurement Test with other gear, and was curious about it. > > Thanks much, > > Frank K6FOD > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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.matthew.george at gmail.com > -- M. George From jimk0xu at gmail.com Fri Apr 24 21:32:17 2020 From: jimk0xu at gmail.com (Jim Rhodes) Date: Fri, 24 Apr 2020 20:32:17 -0500 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <20200424200757.hsvrddsuc5j5wdgr@n0nb.us> Message-ID: Yes, '96 was a quiet year alright. On Fri, Apr 24, 2020 at 6:22 PM Dale Boresz wrote: > I have a stack of QST magazines from 1996 resting on top of my Astron > VS-35M. No transformer hum at all! > > Have not tried magazines from any other years, so YMMV... > > 73, > Dale - WA8SRA > > On Fri, Apr 24, 2020 at 4:09 PM Nate Bargmann wrote: > > > * On 2020 24 Apr 11:50 -0500, inventor61 . wrote: > > > If someone has a better idea than mine for making these, I am all ears. > > > > No better idea. I've read in times past of someone sandwiching some > > compressible material between the transformer and the supply top cover > > to quell or reduce the hum. I have an RM-50M that hums in this manner > > and fortunately it is not loud enough to keep me from listening to the > > K3 at about 8 o'clock with external speakers. > > > > 73, Nate, N0NB > > > > -- > > > > "The optimist proclaims that we live in the best of all > > possible worlds. The pessimist fears this is true." > > > > Web: https://www.n0nb.us > > Projects: https://github.com/N0NB > > GPG fingerprint: 82D6 4F6B 0E67 CD41 F689 BBA6 FB2C 5130 D55A 8819 > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to dmboresz 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 jimk0xu at gmail.com > -- Jim K0XU jim at rhodesend.net From nr4c at widomaker.com Fri Apr 24 21:59:02 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 24 Apr 2020 21:59:02 -0400 Subject: [Elecraft] KX3 with older Heil headset In-Reply-To: <2783d08e-8f21-7d45-4563-d575f120caed@bell.net> References: <2783d08e-8f21-7d45-4563-d575f120caed@bell.net> Message-ID: <34EBE6C1-EE7C-4340-A3A5-B12DA828A871@widomaker.com> Before plugging in the mic from Menu set mic buttons to OFF. See the manual about this. Also be sure Bias is OFF. You will need to tap the Transmit button to speak and again to stop. Or use VOX, see manual to set this up. Go have fun! Sent from my iPhone ...nr4c. bill > On Apr 24, 2020, at 8:29 PM, Bert wrote: > > ?Hi all, > > I want to use an older Heil headset, with an HC-4 element, with my KX3. > > Despite having tried different settings for the microphone, I can't make it work. > Your ideas and suggestions would be much appreciated. Thanks! > > Bert VE3NR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Fri Apr 24 21:59:52 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 24 Apr 2020 21:59:52 -0400 Subject: [Elecraft] KX3 with older Heil headset In-Reply-To: <2783d08e-8f21-7d45-4563-d575f120caed@bell.net> References: <2783d08e-8f21-7d45-4563-d575f120caed@bell.net> Message-ID: <8CEEAF55-B809-4331-A1C7-663536C942FE@widomaker.com> Oops, one more thing..... You?ll need lots of mic gain. Sent from my iPhone ...nr4c. bill > On Apr 24, 2020, at 8:29 PM, Bert wrote: > > ?Hi all, > > I want to use an older Heil headset, with an HC-4 element, with my KX3. > > Despite having tried different settings for the microphone, I can't make it work. > Your ideas and suggestions would be much appreciated. Thanks! > > Bert VE3NR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rich at wc3t.us Fri Apr 24 22:09:57 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Fri, 24 Apr 2020 22:09:57 -0400 Subject: [Elecraft] KX3 with older Heil headset In-Reply-To: <34EBE6C1-EE7C-4340-A3A5-B12DA828A871@widomaker.com> References: <2783d08e-8f21-7d45-4563-d575f120caed@bell.net> <34EBE6C1-EE7C-4340-A3A5-B12DA828A871@widomaker.com> Message-ID: From http://elecraft.365791.n2.nabble.com/KX3-using-CW-key-as-PTT-switch-for-voice-td7564382.html I do this with a standard switch and a 2.5mm jack and a CM500 headset. Works FB. *You can use the tip contact of the ACC2 jack as a PTT input. Set MENU:ACC2 IO to "LO=PTT". You can plug your key directly into the ACC2 jack if it has a 2.5-mm stereo plug. If not, you'll need an adapter like the one supplied as part of our KX3 accessory cable kit. 73, Wayne N6KR * On Fri, Apr 24, 2020 at 9:59 PM Nr4c wrote: > Before plugging in the mic from Menu set mic buttons to OFF. See the > manual about this. Also be sure Bias is OFF. > > You will need to tap the Transmit button to speak and again to stop. > > Or use VOX, see manual to set this up. > > Go have fun! > > Sent from my iPhone > ...nr4c. bill > > > > On Apr 24, 2020, at 8:29 PM, Bert wrote: > > > > ?Hi all, > > > > I want to use an older Heil headset, with an HC-4 element, with my KX3. > > > > Despite having tried different settings for the microphone, I can't make > it work. > > Your ideas and suggestions would be much appreciated. Thanks! > > > > Bert VE3NR > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 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 nr4c at widomaker.com Fri Apr 24 23:49:18 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 24 Apr 2020 23:49:18 -0400 Subject: [Elecraft] KX3 with older Heil headset In-Reply-To: References: Message-ID: Thanks for this tip. I knew there was a PTT input somewhere else on the radio besides the rings on the mic jack. My prev posts were from memory, however I sold my KX3 when the K3S was announced. Sent from my iPhone ...nr4c. bill > On Apr 24, 2020, at 10:10 PM, rich hurd WC3T wrote: > > ? > From http://elecraft.365791.n2.nabble.com/KX3-using-CW-key-as-PTT-switch-for-voice-td7564382.html > I do this with a standard switch and a 2.5mm jack and a CM500 headset. Works FB. > > You can use the tip contact of the ACC2 jack as a PTT input. Set > MENU:ACC2 IO to "LO=PTT". > > You can plug your key directly into the ACC2 jack if it has a 2.5-mm > stereo plug. If not, you'll need an adapter like the one supplied as > part of our KX3 accessory cable kit. > > 73, > Wayne > N6KR > >> On Fri, Apr 24, 2020 at 9:59 PM Nr4c wrote: >> Before plugging in the mic from Menu set mic buttons to OFF. See the manual about this. Also be sure Bias is OFF. >> >> You will need to tap the Transmit button to speak and again to stop. >> >> Or use VOX, see manual to set this up. >> >> Go have fun! >> >> Sent from my iPhone >> ...nr4c. bill >> >> >> > On Apr 24, 2020, at 8:29 PM, Bert wrote: >> > >> > ?Hi all, >> > >> > I want to use an older Heil headset, with an HC-4 element, with my KX3. >> > >> > Despite having tried different settings for the microphone, I can't make it work. >> > Your ideas and suggestions would be much appreciated. Thanks! >> > >> > Bert VE3NR >> > >> > ______________________________________________________________ >> > Elecraft mailing list >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > Help: http://mailman.qth.net/mmfaq.htm >> > Post: mailto:Elecraft at mailman.qth.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 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 hs0zed at gmail.com Fri Apr 24 23:50:14 2020 From: hs0zed at gmail.com (Martin Sole) Date: Sat, 25 Apr 2020 10:50:14 +0700 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: I can add perhaps another data point on the rectifier matter. Years back my employer, one of the largest ground to air radio manufacturers was having failures with their mainstay transmitter, a 50w carrier AM unit. It had a large toroidal? transformer and a packaged rectifier. The rectifier was bolted to the steel sub chassis and all was fine in regular intermittent service but? in ATIS service the transmitter runs essentially continuous, so about 160-180 PEP, and rectifiers were failing. Investigation showed that the steel chassis was not 100% flat and the contact surface of the rectifier was compromised. The fix was to insert a (really) flat aluminium bar under the rectifier and bolt that to the chassis. The bar did much of the heat sinking and had many more contact patches with the steel sub chassis. Even paint ridges can be a source of reduced contact leading to overheating of the rectifier package and those things really do need to shift some heat. A good way to think of it is like you would a PA transistor in a 100 watt amplifier, we appreciate how well they need to be bolted to a heat sink and your rectifier package wants very similar assessment. It's not so much the current that causes failure rather the heat is not being dissipated properly from the smaller package. Martin, HS0ZED On 25/04/2020 02:11, Ray Albers wrote: > This thread started as my description of the failure of my Astron RS-20A > power supply, caused by a bad electrolytic capacitor on the regulator > circuit board. Several hams posted advice that a 20Amp supply was really > too small for a K3/100, especially if running full power. This led me to > order an Astron RS-35 supply. > > Chris Hoover, AI6KG, posted the below advice, warning about possible under- > engineered rectifier diode arrangement in the RS-35A. > > Today the big brown truck delivered my RS-35M-AP (the M and AP signify it > has meters and Anderson Power Poles on the front panel). Chris speculated > that Astron may have made changes more recently. So the first thing I did > was to open the case to check out the rectifier arrangement. Here's what I > found: > > My unit bears Serial Number 2019110051. I am speculating that the leading > digits 2019 signifies 2019 manufacture. Interestingly, the schematic that > shipped with the unit says Rev.1, April 2020. The schematic shows two > bridge rectifiers, DB3501. Two diodes are used from each bridge, and sure > enough the diodes are paralleled. The DB3501 is spec'd at 35A, so that > seems to be an improvement from the 25A diodes Chris mentioned. That's > what's in the schematic. Inside the power supply, there are indeed two > rectifier packages bolted to the floor, with heavy (maybe 14ga) solid wires > connecting terminals in parallel. I'm unable to confirm what the rating of > these diode packages is. They are not labeled DB3501. Instead, they say > "Astron 5001," and one of them also bears some Chinese characters. So > custom made for Astron? > > Well, I have ordered a 50Amp rated diode package, but am undecided if I > will replace the diodes in the supply. 35 Amp rated diode bridges is an > upgrade from the 25 diode bridges that Chris mentioned finding. It does > puzzle me why, with 50A (and better) diodes being so cheap, would Astron do > it this way? I can only think of two reasons: 1) We think having two > packages bolted to the case will make for better heat dissipation of the > total heat generated at max current and 2), the ever present, "because > we've always done it this way!" > > Finally, I'll mention that, like my old RS-20A, I found the negative > terminal bonded to the case. I consider this bad practice so I removed that > bond. > > 73 to all > Ray K2HYD > > > On Sun, Apr 19, 2020 at 6:07 PM Christopher Hoover > wrote: > >> You might want to replace the bridge rectifier in that new 35A power >> supply. >> >> Yep, right out of the box. >> >> At some point, Astron started shipping RS-35A's with a 25A bridge >> rectifier. They paralleled two out of four of the 25A diodes twice over >> to make, supposedly, a pair of 50A diodes for center-tapped full-wave >> rectification. That's not good engineering practice as the diodes in each >> pair will not share current equally because of differences in Vf and >> tempco. Once one blow, the other will blow shortly after. >> >> After I fixed my own RS-35A with this problem, I've helped several other >> hams fix this same problem in theirs. Not a random sample, as this is just >> folks on my local machine and in local clubs. >> >> You can get a 50A bridge in the same package for under $3. >> >> Perhaps Astron has fixed the problem since .... >> >> 73 de AI6KG -ch >> >> >> >> >> On Thu, Apr 16, 2020 at 10:28 AM Ray Albers wrote: >> >>> Many to all who posted/responded to my recent post about an electrolytic >>> capacitor failure in my power supply. Lots of very interesting reading >>> about peoples' industry experiences - thank you! >>> >>> Several have pointed out that using a 20A supply with my K3/100 is pushing >>> close to (or over!) the limit. Even though I am measuring just 16A at the >>> power level I'm running (and not running anything but the K3 on this >>> supply) I agree that I'm skirting the edges. So even though I've been >>> getting away with it for a long time, this morning I ordered a 35A supply. >>> I'll probably sleep better. >>> >>> 73 >>> Ray K2HYD >>> >>> < >>> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon >>> Virus-free. >>> www.avast.com >>> < >>> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link >>> <#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 ch at murgatroid.com >>> > > 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 hs0zed at gmail.com From rmcgraw at blomand.net Sat Apr 25 00:05:20 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Fri, 24 Apr 2020 23:05:20 -0500 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: I've always put a bit of heat sink compound on the rectifier unit before mounting it to the bottom plate.??? I've found several power supplies where the bridge rectifier assembly failed and upon removal, there was no heat sink compound.?? Add a new bridge assembly and some heat sink compound resolved the issues.?? Never had one come back. 73 Bob, K4TAX On 4/24/2020 10:50 PM, Martin Sole wrote: > I can add perhaps another data point on the rectifier matter. Years > back my employer, one of the largest ground to air radio manufacturers > was having failures with their mainstay transmitter, a 50w carrier AM > unit. It had a large toroidal? transformer and a packaged rectifier. > The rectifier was bolted to the steel sub chassis and all was fine in > regular intermittent service but? in ATIS service the transmitter runs > essentially continuous, so about 160-180 PEP, and rectifiers were > failing. > > Investigation showed that the steel chassis was not 100% flat and the > contact surface of the rectifier was compromised. The fix was to > insert a (really) flat aluminium bar under the rectifier and bolt that > to the chassis. The bar did much of the heat sinking and had many more > contact patches with the steel sub chassis. Even paint ridges can be a > source of reduced contact leading to overheating of the rectifier > package and those things really do need to shift some heat. A good way > to think of it is like you would a PA transistor in a 100 watt > amplifier, we appreciate how well they need to be bolted to a heat > sink and your rectifier package wants very similar assessment. > > It's not so much the current that causes failure rather the heat is > not being dissipated properly from the smaller package. > > Martin, HS0ZED > From n1al at sonic.net Sat Apr 25 01:12:07 2020 From: n1al at sonic.net (Alan Bloom) Date: Fri, 24 Apr 2020 23:12:07 -0600 Subject: [Elecraft] Frequency display on P3? In-Reply-To: <164625ff-164c-bed0-75b9-25d9f8603a1b@inkbox.net> References: <164625ff-164c-bed0-75b9-25d9f8603a1b@inkbox.net> Message-ID: <9fd41ed8faca30ed88d55a9e19fc0be1@sonic.net> The P3 has a menu entry to calibrate its frequency MENU:Ref Cal The calibration prodedure is on page 37 of the manual. I like to use an AM broadcast station (preferably near the top of the band) for calibration because these frequencies are highly accurate and AM mode puts the carrier right at the center of the P3 display. Alan N1AL On 2020-04-24 19:13, Frank O'Donnell wrote: > Here's what I'm sure is a beginner question. > > If I feed an accurate signal from a waveform generator into my K3S, on the P3 it appears right about 120 Hz higher than the actual frequency. This seems to be independent of the mode the K3S is in. What causes that? > > I noticed this when I had my K3S/P3 running while working the ARRL Frequency Measurement Test with other gear, and was curious about it. > > Thanks much, > > Frank K6FOD > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 KY5G at montac.com Sat Apr 25 03:02:27 2020 From: KY5G at montac.com (Clay Autery) Date: Sat, 25 Apr 2020 02:02:27 -0500 Subject: [Elecraft] OT: Astron RS-35M Transformer Hum In-Reply-To: References: <20200424200757.hsvrddsuc5j5wdgr@n0nb.us> Message-ID: <7ab56cff-ae7d-cc36-5bf3-782aff782bd9@montac.com> LOL!? That's funny! 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 04/24/20 18:21, Dale Boresz wrote: > I have a stack of QST magazines from 1996 resting on top of my Astron > VS-35M. No transformer hum at all! > > Have not tried magazines from any other years, so YMMV... > > 73, > Dale - WA8SRA From KY5G at montac.com Sat Apr 25 03:09:09 2020 From: KY5G at montac.com (Clay Autery) Date: Sat, 25 Apr 2020 02:09:09 -0500 Subject: [Elecraft] Frequency display on P3? In-Reply-To: References: <164625ff-164c-bed0-75b9-25d9f8603a1b@inkbox.net> Message-ID: +1, yup!? Mine is spot on, as calibrated... as in less than 1 Hz error rate. ______________________ Clay Autery, KY5G (318) 518-1389 On 04/24/20 20:27, M. George wrote: > It sounds like you need to do the frequency calibration as documented on > page 39 of the manual > > : > https://ftp.elecraft.com/P3/Manuals%20Downloads/E740152%20P3%20Owner's%20man%20Rev%20H1.pdf > > Max NG7M > > > On Fri, Apr 24, 2020 at 7:14 PM Frank O'Donnell wrote: > >> Here's what I'm sure is a beginner question. >> >> If I feed an accurate signal from a waveform generator into my K3S, on >> the P3 it appears right about 120 Hz higher than the actual frequency. >> This seems to be independent of the mode the K3S is in. What causes that? >> >> I noticed this when I had my K3S/P3 running while working the ARRL >> Frequency Measurement Test with other gear, and was curious about it. >> >> Thanks much, >> >> Frank K6FOD >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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.matthew.george at gmail.com >> > From Volker.Debus at t-online.de Sat Apr 25 03:22:03 2020 From: Volker.Debus at t-online.de (Volker.Debus at t-online.de) Date: Sat, 25 Apr 2020 09:22:03 +0200 (CEST) Subject: [Elecraft] K4 S-meter characteristics In-Reply-To: <29E31AA6-423D-497C-AB4F-B5E675A25B5B@comcast.net> References: <003201d61a3e$28b89bd0$7a29d370$@erols.com> <29E31AA6-423D-497C-AB4F-B5E675A25B5B@comcast.net> Message-ID: <1587799323807.2156514.0d6f6ef412cfdc83bb64fc4aaec24b463acc840f@spica.telekom.de> Well said, Brian. A calibrated S-meter may be helpfull for side-to-side on-air equipment comparisons (e.g. antennas) and not for contest business. From time to time you will even find a few people fighting the 20dB HF to VHF/UHF offset.... Real- world VHF transverters do need slightly more than 20dB rx coversion gain (abt 25dB), so an "transverter s- meter correction" would be highly appreciated for the K4. My ANAN SDRs do have it, my K3 not.... 73 Volker DL4ZBG/DK0B -----Original-Nachricht----- Betreff: Re: [Elecraft] K4 S-meter characteristics Datum: 2020-04-25T01:45:37+0200 Von: "Brian Denley" An: "Charlie T" The International Amateur Radio Union (IARU) Region 1 agreed on a technical recommendation for S Meter calibration for HF and VHF/UHF transceivers in 1981. Why go back to 1947? Brian Denley KB1VBF Sent from my iPad > On Apr 24, 2020, at 6:30 PM, Charlie T wrote: > > S-meters should be calibrated with 9 signal levels: > > *Faint - Signal barely perceptible > *Very weak signals > *Weak signals > *Fair signals > *Fairly good signals > *Good signals > *Moderately strong signals > *Strong signals > *Extremely strong signals > > (Reprinted from the 1947 ARRL Handbook, page 466 "RST System of Signal Reports") > > 73, Charlie k3ICH > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of John Stengrevics > Sent: Friday, April 24, 2020 7:49 AM > To: Morgan Bailey > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] K4 S-meter characteristics > > Agree completely. I find all S meters to be totally inaccurate and next to useless, including my K3S?. > >> On Apr 24, 2020, at 7:43 AM, Morgan Bailey wrote: >> >> Maybe it is just me but, Turn the radio on, adjust the audio/rf/agc >> controls, hear the station, work him, move on. I dont need a fancy dbm >> or an iconic number of engineering controls, to say what the dbm was >> when I worked the guy. When you contest, who the hell cares, hear him, >> work him, move on. In simple terms, I just want selectivity, and no >> agc pumping and no front in desensing from a 40 db over nine station 2khz away. >> >> Im looking forward to a quiet front end, that keeps me from having to >> listen to 48 hours of static that is generated by the stages with in >> the radio. Love my K3S, great radio. Simple to operate once you learn >> its controls and never has failed me. >> >> Looking forward to K4 delivery. >> >> Vy 73, >> Morgan Bailey NJ8M >> >> > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to b.denley 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 volker.debus at t-online.de ? From carterwc128 at gmail.com Sat Apr 25 06:15:40 2020 From: carterwc128 at gmail.com (Carter Craigie) Date: Sat, 25 Apr 2020 06:15:40 -0400 Subject: [Elecraft] KX3 with older Heil headset In-Reply-To: <8CEEAF55-B809-4331-A1C7-663536C942FE@widomaker.com> References: <2783d08e-8f21-7d45-4563-d575f120caed@bell.net> <8CEEAF55-B809-4331-A1C7-663536C942FE@widomaker.com> Message-ID: YES, a LOT of Mic Gain! On Fri, Apr 24, 2020 at 10:03 PM Nr4c wrote: > Oops, one more thing..... You?ll need lots of mic gain. > > Sent from my iPhone > ...nr4c. bill > > > > On Apr 24, 2020, at 8:29 PM, Bert wrote: > > > > ?Hi all, > > > > I want to use an older Heil headset, with an HC-4 element, with my KX3. > > > > Despite having tried different settings for the microphone, I can't make > it work. > > Your ideas and suggestions would be much appreciated. Thanks! > > > > Bert VE3NR > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 carterwc128 at gmail.com From chandlerusm at gmail.com Sat Apr 25 08:13:21 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Sat, 25 Apr 2020 07:13:21 -0500 Subject: [Elecraft] K3S poor CW keying further investigation Message-ID: After more checking, I suspect the internal 100W amp is the common factor in the poor keying characteristics I'm seeing and hearing about from my rig. I am trying to determine if my power supply is doing it's job. I'm using a TenTec 963 switching supply rated at 25A continuous. At rest the K3S panel display shows 13.6V, with full power key down it dips to 11.5 or so. This seems like a lot. I'm running the power cable thru a RigRunner Powerpole strip. If I can dig out another power supply from the packed boxes I can wire the K3S directly to the supply. Is 11.5V at key down enough to cause the slow rise time being reported? 73 de Chuck, WS1L -- =================== Chuck Chandler chandlerusm at gmail.com =================== From rmcgraw at blomand.net Sat Apr 25 09:47:13 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 25 Apr 2020 08:47:13 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: As to the RigRunner power pole strip.........PUT IT IN THE TRASH where it belongs.??? NEVER NEVER NEVER use a power distribution strip to power a 100 watt radio.?? ALWAYS connect the radio direct to the power supply terminals.?? NO exceptions! 73 Bob, K4TAX On 4/25/2020 7:13 AM, Chuck Chandler wrote: > After more checking, I suspect the internal 100W amp is the common factor > in the poor keying characteristics I'm seeing and hearing about from my > rig. I am trying to determine if my power supply is doing it's job. > > I'm using a TenTec 963 switching supply rated at 25A continuous. At rest > the K3S panel display shows 13.6V, with full power key down it dips to 11.5 > or so. This seems like a lot. I'm running the power cable thru a > RigRunner Powerpole strip. If I can dig out another power supply from the > packed boxes I can wire the K3S directly to the supply. > > Is 11.5V at key down enough to cause the slow rise time being reported? > > 73 de Chuck, WS1L > From anyone1545 at gmail.com Sat Apr 25 10:02:28 2020 From: anyone1545 at gmail.com (Gmail) Date: Sat, 25 Apr 2020 08:02:28 -0600 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: Nuts, just measure the drop between radio and power supply see if it is reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. Ray W8LYJ Sent from my iPad > On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: > > ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where it belongs. NEVER NEVER NEVER use a power distribution strip to power a 100 watt radio. ALWAYS connect the radio direct to the power supply terminals. NO exceptions! > > 73 > > Bob, K4TAX > > >> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >> After more checking, I suspect the internal 100W amp is the common factor >> in the poor keying characteristics I'm seeing and hearing about from my >> rig. I am trying to determine if my power supply is doing it's job. >> >> I'm using a TenTec 963 switching supply rated at 25A continuous. At rest >> the K3S panel display shows 13.6V, with full power key down it dips to 11.5 >> or so. This seems like a lot. I'm running the power cable thru a >> RigRunner Powerpole strip. If I can dig out another power supply from the >> packed boxes I can wire the K3S directly to the supply. >> >> Is 11.5V at key down enough to cause the slow rise time being reported? >> >> 73 de Chuck, WS1L >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to anyone1545 at gmail.com From donanddeena at hotmail.com Sat Apr 25 10:15:17 2020 From: donanddeena at hotmail.com (Don Schroder) Date: Sat, 25 Apr 2020 14:15:17 +0000 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: , Message-ID: Bob, Is it safe to run my K2 using Anderson Power Pole connections, and/or RigRunner equipment? For my info, what is the reason for NOT using them? I?m rewiring, and I want to do it right! Gunny, KE0PVQ Sent from Mail for Windows 10 From: Gmail Sent: Saturday, April 25, 2020 9:03 AM To: Bob McGraw K4TAX Cc: Elecraft at mailman.qth.net Subject: Re: [Elecraft] K3S poor CW keying further investigation Nuts, just measure the drop between radio and power supply see if it is reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. Ray W8LYJ Sent from my iPad > On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: > > ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where it belongs. NEVER NEVER NEVER use a power distribution strip to power a 100 watt radio. ALWAYS connect the radio direct to the power supply terminals. NO exceptions! > > 73 > > Bob, K4TAX > > >> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >> After more checking, I suspect the internal 100W amp is the common factor >> in the poor keying characteristics I'm seeing and hearing about from my >> rig. I am trying to determine if my power supply is doing it's job. >> >> I'm using a TenTec 963 switching supply rated at 25A continuous. At rest >> the K3S panel display shows 13.6V, with full power key down it dips to 11.5 >> or so. This seems like a lot. I'm running the power cable thru a >> RigRunner Powerpole strip. If I can dig out another power supply from the >> packed boxes I can wire the K3S directly to the supply. >> >> Is 11.5V at key down enough to cause the slow rise time being reported? >> >> 73 de Chuck, WS1L >> > > ______________________________________________________________ > Elecraft mailing list > Home: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 > Help: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 > Please help support this email list: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 > Message delivered to anyone1545 at gmail.com ______________________________________________________________ Elecraft mailing list Home: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 Help: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 Post: mailto:Elecraft at mailman.qth.net This list hosted by: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 Please help support this email list: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 Message delivered to donanddeena at hotmail.com From jimk0xu at gmail.com Sat Apr 25 10:32:31 2020 From: jimk0xu at gmail.com (Jim Rhodes) Date: Sat, 25 Apr 2020 09:32:31 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: I had been using a power pole strip to power everything. After seeing some discussion on this topic some time ago I found that in the string of 3 power pole connections in my setup at the time I was seeing around a 1 volt drop in the voltage on the K3 metering between receive and 100 watts keydown. That voltage drop was confirmed by my VOM so I wired the rig directly to the supply and the voltage drop was less than 0.25 volts. That is the way my rigs and VHF/UHF amps will be connected from now on with only a fuse inline. The low current stuff will stay on the power pole strip where they do just fine lighting up lights and stuff. On Sat, Apr 25, 2020, 09:16 Don Schroder wrote: > Bob, > > Is it safe to run my K2 using Anderson Power Pole connections, and/or > RigRunner equipment? > > For my info, what is the reason for NOT using them? > > I?m rewiring, and I want to do it right! > > Gunny, KE0PVQ > > Sent from Mail for > Windows 10 > > From: Gmail > Sent: Saturday, April 25, 2020 9:03 AM > To: Bob McGraw K4TAX > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] K3S poor CW keying further investigation > > Nuts, just measure the drop between radio and power supply see if it is > reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. > Ray > W8LYJ > > Sent from my iPad > > > On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: > > > > ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where > it belongs. NEVER NEVER NEVER use a power distribution strip to power a > 100 watt radio. ALWAYS connect the radio direct to the power supply > terminals. NO exceptions! > > > > 73 > > > > Bob, K4TAX > > > > > >> On 4/25/2020 7:13 AM, Chuck Chandler wrote: > >> After more checking, I suspect the internal 100W amp is the common > factor > >> in the poor keying characteristics I'm seeing and hearing about from my > >> rig. I am trying to determine if my power supply is doing it's job. > >> > >> I'm using a TenTec 963 switching supply rated at 25A continuous. At > rest > >> the K3S panel display shows 13.6V, with full power key down it dips to > 11.5 > >> or so. This seems like a lot. I'm running the power cable thru a > >> RigRunner Powerpole strip. If I can dig out another power supply from > the > >> packed boxes I can wire the K3S directly to the supply. > >> > >> Is 11.5V at key down enough to cause the slow rise time being reported? > >> > >> 73 de Chuck, WS1L > >> > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 > > Help: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 > > Please help support this email list: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 > > Message delivered to anyone1545 at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 > Help: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 > Please help support this email list: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu at gmail.com From frantz at pwpconsult.com Sat Apr 25 10:36:20 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sat, 25 Apr 2020 10:36:20 -0400 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: Message-ID: The short answer is that too much voltage drop on transmit puts radios in an operational configuration where they produce more IMD and other bad things. Any connection in the power supply will introduce additional resistance. At the current levels used during 100W transmission, it doesn't take much to cause a significant voltage drop. For example: 20 amps with a 0.05 ohm resistance. E=IR. 20*0.05==>1 volt. When you use a RigRunner system, you have added 2 additional PowerPole connectors plus the resistance of the automotive blade type fuse. That is not good. To find out what is happening in your system, use a volt meter to measure the voltage drop over every connection. You might be surprised. I was surprised at the cost of a single automotive blade fuse in my solar+battery system. And all of them add up. 73 Bill AE6JV On 4/25/20 at 10:15 AM, donanddeena at hotmail.com (Don Schroder) wrote: >Is it safe to run my K2 using Anderson Power Pole connections, and/or RigRunner equipment? > >For my info, what is the reason for NOT using them? > >I?m rewiring, and I want to do it right! ---------------------------------------------------- Bill Frantz | Art is how we decorate space, 408-348-7900 | music is how we decorate time. www.pwpconsult.com | -Jean-Michel Basquiat From donwilh at embarqmail.com Sat Apr 25 10:41:16 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 25 Apr 2020 10:41:16 -0400 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: Don, Yes, Anderson Powerpoles are fine connectors. Just don't use too many of then when powering a 100 watt rig. IMHO, Rigrunners are handy things, but running a 100 watt transceiver from them is cause for significant voltage drops. Each contact point will have some resistance. A fused Rigrunner has 6 contact points in line with the power supply (you need to count those in both the negative and positive lines) If you have a K2/10, you can run it from the Rigrunner, but if a K2/100, wire it direct to the power supply - there will be less voltage drop. Save the Rigrunner for accessories and other lower current devices. 73, Don W3FPR On 4/25/2020 10:15 AM, Don Schroder wrote: > Bob, > > Is it safe to run my K2 using Anderson Power Pole connections, and/or RigRunner equipment? > > For my info, what is the reason for NOT using them? > > I?m rewiring, and I want to do it right! > > Gunny, KE0PVQ > > Sent from Mail for Windows 10 > > From: Gmail > Sent: Saturday, April 25, 2020 9:03 AM > To: Bob McGraw K4TAX > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] K3S poor CW keying further investigation > > Nuts, just measure the drop between radio and power supply see if it is reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. > Ray > W8LYJ > > Sent from my iPad > >> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: >> >> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where it belongs. NEVER NEVER NEVER use a power distribution strip to power a 100 watt radio. ALWAYS connect the radio direct to the power supply terminals. NO exceptions! >> >> 73 >> >> Bob, K4TAX >> >> >>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>> After more checking, I suspect the internal 100W amp is the common factor >>> in the poor keying characteristics I'm seeing and hearing about from my >>> rig. I am trying to determine if my power supply is doing it's job. >>> >>> I'm using a TenTec 963 switching supply rated at 25A continuous. At rest >>> the K3S panel display shows 13.6V, with full power key down it dips to 11.5 >>> or so. This seems like a lot. I'm running the power cable thru a >>> RigRunner Powerpole strip. If I can dig out another power supply from the >>> packed boxes I can wire the K3S directly to the supply. >>> >>> Is 11.5V at key down enough to cause the slow rise time being reported? >>> >>> 73 de Chuck, WS1L >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >> Help: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >> Please help support this email list: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >> Message delivered to anyone1545 at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 > Help: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 > Please help support this email list: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 donwilh at embarqmail.com > From rmcgraw at blomand.net Sat Apr 25 10:43:23 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 25 Apr 2020 09:43:23 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: Gunny et al: The issue with power distribution strips for DC is resistance. Every contact or connection in the path adds some value of resistance.? Using Ohms law, where E = IR, we see that more resistance = more voltage drop.? This includes the resistance of the DC power cable and any contact arrangements in the path. Ideally, there should be no voltage change at the radio between receive and transmit. I have found these power strips may be "rated" for 20 amps, but they will always add some value of resistance at every contact point.? I do not recommend using any? model, brand or make DC power strip to supply DC to a radio.? Thus I always connect the radio direct to the power supply terminals.??? I always suggest using proper size ring terminals, or PowerPole connectors which are properly crimped using a correct crimping tool.?? A crimping tool is not pliers or the like, which if used, I refer to "mash on" connections. ? I also sweat solder mine after crimping as well.?? The crimp plus solder method is not recommended by the airline industry or NASA.? I doubt if my radios will be "flying off of the desk" or being launched into space any time in my lifetime.? HI? HI On DC Cables.?? Usually #12 AWG wire and a length of 3 ft or less is suitable for 100 watt radios. ? If it is necessary to have longer DC power cables, then I suggest using #10 AWG for lengths of over 3 ft but less than 10 ft. ? If you need power cables over 10 ft, I'd consider changing my installation.?? The reason is that larger cables are difficult to use, move, and attach connectors reliably behind a radio. So to answer you question "is it safe........" yes, but there are better ways to handle DC power distribution. Clean and stable DC at the radio is the objective. 73 Bob, K4TAX On 4/25/2020 9:15 AM, Don Schroder wrote: > > Bob, > > Is it safe to run my K2 using Anderson Power Pole connections, and/or > RigRunner equipment? > > For my info, what is the reason for NOT using them? > > I?m rewiring, and I want to do it right! > > Gunny, KE0PVQ > > Sent from Mail for > Windows 10 > > From edauer at law.du.edu Sat Apr 25 10:48:43 2020 From: edauer at law.du.edu (Dauer, Edward) Date: Sat, 25 Apr 2020 14:48:43 +0000 Subject: [Elecraft] K4 S-Meter Characteristics Message-ID: Who uses S-values anyway? Maybe for serious propagation measurements, but I haven't heard anything but "5NN" or "59" in a contest as far back as I can remember, and likewise in CW DX work. It's programmed into the logging software and probably impossible to dislodge. I was recently in a DX pileup and decided to send a real report, 459, so the DX knew how he was actually doing in my part of the world. I could almost feel the annoyance coming back at me through the ether from both the fox and the other hounds. On CW and SSB rag chews I have heard real reports being exchanged, about both the signal and -- more commonly on SSB -- in complaints about the noise. But even there what matters is readability above the noise, not the microvolts themselves. IMHO, it's interesting to have S numbers on the scale of my P3, but if they disappeared from the K3 display it would be a long time before I noticed their absence. "59 Good Buddy" (whatever that means), Ted, KN1CBR ------------------------------ Message: 6 Date: Fri, 24 Apr 2020 19:43:35 -0400 From: Brian Denley To: Charlie T Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] K4 S-meter characteristics Message-ID: <29E31AA6-423D-497C-AB4F-B5E675A25B5B at comcast.net> Content-Type: text/plain; charset=utf-8 The International Amateur Radio Union (IARU) Region 1 agreed on a technical recommendation for S Meter calibration for HF and VHF/UHF transceivers in 1981. Why go back to 1947? Brian Denley KB1VBF Sent from my iPad > On Apr 24, 2020, at 6:30 PM, Charlie T wrote: > > ?S-meters should be calibrated with 9 signal levels: > > *Faint - Signal barely perceptible > *Very weak signals > *Weak signals > *Fair signals > *Fairly good signals > *Good signals > *Moderately strong signals > *Strong signals > *Extremely strong signals > > (Reprinted from the 1947 ARRL Handbook, page 466 "RST System of Signal Reports") > > 73, Charlie k3ICH > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of John Stengrevics > Sent: Friday, April 24, 2020 7:49 AM > To: Morgan Bailey > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] K4 S-meter characteristics > > Agree completely. I find all S meters to be totally inaccurate and next to useless, including my K3S?. > ******************** From n4zr at comcast.net Sat Apr 25 10:49:18 2020 From: n4zr at comcast.net (N4ZR) Date: Sat, 25 Apr 2020 10:49:18 -0400 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> For whatever it may be worth, my K3 is run through a West Mountain RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even flicker when I go key-down at 100 watts. I'm wondering if a 25-amp-rated supply (perhaps a little optimistic) might be to blame.? My K3 draws 20.2 amps at 100 watts key down. 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 4/25/2020 10:32 AM, Jim Rhodes wrote: > I had been using a power pole strip to power everything. After seeing some > discussion on this topic some time ago I found that in the string of 3 > power pole connections in my setup at the time I was seeing around a 1 volt > drop in the voltage on the K3 metering between receive and 100 watts > keydown. That voltage drop was confirmed by my VOM so I wired the rig > directly to the supply and the voltage drop was less than 0.25 volts. That > is the way my rigs and VHF/UHF amps will be connected from now on with only > a fuse inline. The low current stuff will stay on the power pole strip > where they do just fine lighting up lights and stuff. > > On Sat, Apr 25, 2020, 09:16 Don Schroder wrote: > >> Bob, >> >> Is it safe to run my K2 using Anderson Power Pole connections, and/or >> RigRunner equipment? >> >> For my info, what is the reason for NOT using them? >> >> I?m rewiring, and I want to do it right! >> >> Gunny, KE0PVQ >> >> Sent from Mail for >> Windows 10 >> >> From: Gmail >> Sent: Saturday, April 25, 2020 9:03 AM >> To: Bob McGraw K4TAX >> Cc: Elecraft at mailman.qth.net >> Subject: Re: [Elecraft] K3S poor CW keying further investigation >> >> Nuts, just measure the drop between radio and power supply see if it is >> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. >> Ray >> W8LYJ >> >> Sent from my iPad >> >>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: >>> >>> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where >> it belongs. NEVER NEVER NEVER use a power distribution strip to power a >> 100 watt radio. ALWAYS connect the radio direct to the power supply >> terminals. NO exceptions! >>> 73 >>> >>> Bob, K4TAX >>> >>> >>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>> After more checking, I suspect the internal 100W amp is the common >> factor >>>> in the poor keying characteristics I'm seeing and hearing about from my >>>> rig. I am trying to determine if my power supply is doing it's job. >>>> >>>> I'm using a TenTec 963 switching supply rated at 25A continuous. At >> rest >>>> the K3S panel display shows 13.6V, with full power key down it dips to >> 11.5 >>>> or so. This seems like a lot. I'm running the power cable thru a >>>> RigRunner Powerpole strip. If I can dig out another power supply from >> the >>>> packed boxes I can wire the K3S directly to the supply. >>>> >>>> Is 11.5V at key down enough to cause the slow rise time being reported? >>>> >>>> 73 de Chuck, WS1L >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>> Help: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>> Please help support this email list: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>> Message delivered to anyone1545 at gmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >> Help: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >> Please help support this email list: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr at comcast.net From rmcgraw at blomand.net Sat Apr 25 10:56:41 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 25 Apr 2020 09:56:41 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: <91e7c603-532b-4e5e-5a44-6f8c403eccab@blomand.net> Jim et al: Thank you for confirming? exactly what I've written and suggested. TO ALL........PLEASE do not use power strips to supply DC to your radio from your power supply.?? ALWAYS connect the radio direct to the power supply terminals.??? The power pole and DC distributions strips are ok for LED lightning and such but NEVER for anything drawing over about 2 amps.?? I don't care what the manufacturer says they are "rated" for.??? E = I x R.??? Every connections adds resistance.??? Do the math. 73 Bob, K4TAX On 4/25/2020 9:32 AM, Jim Rhodes wrote: > I had been using a power pole strip to power everything. After seeing > some discussion on this topic some time ago I found that in the string > of 3 power pole connections in my setup at the time I was seeing > around a 1 volt drop in the voltage on the K3 metering between receive > and 100 watts keydown. That voltage drop was confirmed by my VOM so I > wired the rig directly to the supply and the voltage drop was less > than 0.25 volts. That is the way my rigs and VHF/UHF amps will be > connected from now on with only a fuse inline. The low current stuff > will stay on the power pole strip where they do just fine lighting up > lights and stuff. > > On Sat, Apr 25, 2020, 09:16 Don Schroder > wrote: > > Bob, > > Is it safe to run my K2 using Anderson Power Pole connections, > and/or RigRunner equipment? > > For my info, what is the reason for NOT using them? > > I?m rewiring, and I want to do it right! > > Gunny, KE0PVQ > > Sent from Mail for > Windows 10 > > From: Gmail> > Sent: Saturday, April 25, 2020 9:03 AM > To: Bob McGraw K4TAX > > Cc: Elecraft at mailman.qth.net > > > Subject: Re: [Elecraft] K3S poor CW keying further investigation > > Nuts, just measure the drop between radio and power supply see if > it is reasonable. Mine is 0.25 volts when transmitting.? I run > 14.0 out of supply. > Ray > W8LYJ > > Sent from my iPad > > > On Apr 25, 2020, at 07:48, Bob McGraw K4TAX > wrote: > > > > ?As to the RigRunner power pole strip.........PUT IT IN THE > TRASH where it belongs.? ? NEVER NEVER NEVER use a power > distribution strip to power a 100 watt radio.? ?ALWAYS connect the > radio direct to the power supply terminals.? ?NO exceptions! > > > > 73 > > > > Bob, K4TAX > > > > > >> On 4/25/2020 7:13 AM, Chuck Chandler wrote: > >> After more checking, I suspect the internal 100W amp is the > common factor > >> in the poor keying characteristics I'm seeing and hearing about > from my > >> rig.? I am trying to determine if my power supply is doing it's > job. > >> > >> I'm using a TenTec 963 switching supply rated at 25A > continuous.? At rest > >> the K3S panel display shows 13.6V, with full power key down it > dips to 11.5 > >> or so.? This seems like a lot.? I'm running the power cable thru a > >> RigRunner Powerpole strip.? If I can dig out another power > supply from the > >> packed boxes I can wire the K3S directly to the supply. > >> > >> Is 11.5V at key down enough to cause the slow rise time being > reported? > >> > >> 73 de Chuck, WS1L > >> > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 > > Help: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 > > Post: mailto:Elecraft at mailman.qth.net > > > > > This list hosted by: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 > > Please help support this email list: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 > > Message delivered to anyone1545 at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 > Help: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 > Post: mailto:Elecraft at mailman.qth.net > > > This list hosted by: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 > Please help support this email list: > https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu at gmail.com > From wa2eio at optonline.net Sat Apr 25 11:12:47 2020 From: wa2eio at optonline.net (Ron Manfredi) Date: Sat, 25 Apr 2020 11:12:47 -0400 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <91e7c603-532b-4e5e-5a44-6f8c403eccab@blomand.net> References: <91e7c603-532b-4e5e-5a44-6f8c403eccab@blomand.net> Message-ID: <19277a94-b90e-c2f6-f4f1-ca2ea24ce437@optonline.net> Fewer power supplies (meaning the switching type) have actual terminal bolts to use with ring connectors.? If the supply doesn't have that type of connector, then what alternatives are there to being able to use one supply in a station that has more than one high current rig,? (even if they are not used at the same time) since the connectors on most of these supplies will take at most only one 10-12 gauge cable? Ron?? WA2EIO On 4/25/2020 10:56 AM, Bob McGraw K4TAX wrote: > Jim et al: > > Thank you for confirming? exactly what I've written and suggested. > > TO ALL........PLEASE do not use power strips to supply DC to your > radio from your power supply.?? ALWAYS connect the radio direct to the > power supply terminals.??? The power pole and DC distributions strips > are ok for LED lightning and such but NEVER for anything drawing over > about 2 amps.?? I don't care what the manufacturer says they are > "rated" for.??? E = I x R.??? Every connections adds resistance.??? Do > the math. > > 73 > > Bob, K4TAX > > On 4/25/2020 9:32 AM, Jim Rhodes wrote: >> I had been using a power pole strip to power everything. After seeing >> some discussion on this topic some time ago I found that in the >> string of 3 power pole connections in my setup at the time I was >> seeing around a 1 volt drop in the voltage on the K3 metering between >> receive and 100 watts keydown. That voltage drop was confirmed by my >> VOM so I wired the rig directly to the supply and the voltage drop >> was less than 0.25 volts. That is the way my rigs and VHF/UHF amps >> will be connected from now on with only a fuse inline. The low >> current stuff will stay on the power pole strip where they do just >> fine lighting up lights and stuff. >> >> On Sat, Apr 25, 2020, 09:16 Don Schroder > > wrote: >> >> ??? Bob, >> >> ??? Is it safe to run my K2 using Anderson Power Pole connections, >> ??? and/or RigRunner equipment? >> >> ??? For my info, what is the reason for NOT using them? >> >> ??? I?m rewiring, and I want to do it right! >> >> ??? Gunny, KE0PVQ >> >> ??? Sent from Mail for >> ??? Windows 10 >> >> ??? From: Gmail> > >> ??? Sent: Saturday, April 25, 2020 9:03 AM >> ??? To: Bob McGraw K4TAX> ??? > >> ??? Cc: Elecraft at mailman.qth.net >> > ??? > >> ??? Subject: Re: [Elecraft] K3S poor CW keying further investigation >> >> ??? Nuts, just measure the drop between radio and power supply see if >> ??? it is reasonable. Mine is 0.25 volts when transmitting.? I run >> ??? 14.0 out of supply. >> ??? Ray >> ??? W8LYJ >> >> ??? Sent from my iPad >> >> ??? > On Apr 25, 2020, at 07:48, Bob McGraw K4TAX > ??? > wrote: >> ??? > >> ??? > ?As to the RigRunner power pole strip.........PUT IT IN THE >> ??? TRASH where it belongs.? ? NEVER NEVER NEVER use a power >> ??? distribution strip to power a 100 watt radio.? ?ALWAYS connect the >> ??? radio direct to the power supply terminals.? ?NO exceptions! >> ??? > >> ??? > 73 >> ??? > >> ??? > Bob, K4TAX >> ??? > >> ??? > >> ??? >> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >> ??? >> After more checking, I suspect the internal 100W amp is the >> ??? common factor >> ??? >> in the poor keying characteristics I'm seeing and hearing about >> ??? from my >> ??? >> rig.? I am trying to determine if my power supply is doing it's >> ??? job. >> ??? >> >> ??? >> I'm using a TenTec 963 switching supply rated at 25A >> ??? continuous.? At rest >> ??? >> the K3S panel display shows 13.6V, with full power key down it >> ??? dips to 11.5 >> ??? >> or so.? This seems like a lot.? I'm running the power cable >> thru a >> ??? >> RigRunner Powerpole strip.? If I can dig out another power >> ??? supply from the >> ??? >> packed boxes I can wire the K3S directly to the supply. >> ??? >> >> ??? >> Is 11.5V at key down enough to cause the slow rise time being >> ??? reported? >> ??? >> >> ??? >> 73 de Chuck, WS1L >> ??? >> >> ??? > >> ??? > ______________________________________________________________ >> ??? > Elecraft mailing list >> ??? > Home: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >> ??? > Help: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >> ??? > Post: mailto:Elecraft at mailman.qth.net >> ??? >> ??? > >> ??? > This list hosted by: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >> ??? > Please help support this email list: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >> ??? > Message delivered to anyone1545 at gmail.com >> ??? >> ______________________________________________________________ >> ??? Elecraft mailing list >> ??? Home: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >> ??? Help: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >> ??? Post: mailto:Elecraft at mailman.qth.net >> ??? >> >> ??? This list hosted by: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >> ??? Please help support this email list: >> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 wa2eio at optonline.net From charlestropp at gmail.com Sat Apr 25 11:21:09 2020 From: charlestropp at gmail.com (Charles Tropp) Date: Sat, 25 Apr 2020 11:21:09 -0400 Subject: [Elecraft] For Sale: Elecraft W-2 Wattmeter/SWR Bridge Message-ID: <5ea45567.1c69fb81.264eb.5342@mx.google.com> From va3mw at portcredit.net Sat Apr 25 11:23:01 2020 From: va3mw at portcredit.net (Michael Walker) Date: Sat, 25 Apr 2020 11:23:01 -0400 Subject: [Elecraft] For Sale: Elecraft W-2 Wattmeter/SWR Bridge In-Reply-To: <5ea45567.1c69fb81.264eb.5342@mx.google.com> References: <5ea45567.1c69fb81.264eb.5342@mx.google.com> Message-ID: Do you have a price? Which Sensors to you have? Mike va3mw On Sat, Apr 25, 2020 at 11:21 AM Charles Tropp wrote: > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 c-hawley at illinois.edu Sat Apr 25 11:25:04 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sat, 25 Apr 2020 15:25:04 +0000 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> References: , <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> Message-ID: <7D4291CD-AE7B-4977-949C-D7814950C6E6@illinois.edu> I did notice that the post mentioned that his power supply dipped in voltage but as for preventing issues due to low voltage, it's not your voltmeter on the power supply that is the proper indicator. It is the voltage on the input to the K3 that you should be noting. It's available on the menu and displays in the VFO B area on the screen. Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Apr 25, 2020, at 9:51 AM, N4ZR wrote: > > ?For whatever it may be worth, my K3 is run through a West Mountain RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even flicker when I go key-down at 100 watts. > > I'm wondering if a 25-amp-rated supply (perhaps a little optimistic) might be to blame. My K3 draws 20.2 amps at 100 watts key down. > > 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >> I had been using a power pole strip to power everything. After seeing some >> discussion on this topic some time ago I found that in the string of 3 >> power pole connections in my setup at the time I was seeing around a 1 volt >> drop in the voltage on the K3 metering between receive and 100 watts >> keydown. That voltage drop was confirmed by my VOM so I wired the rig >> directly to the supply and the voltage drop was less than 0.25 volts. That >> is the way my rigs and VHF/UHF amps will be connected from now on with only >> a fuse inline. The low current stuff will stay on the power pole strip >> where they do just fine lighting up lights and stuff. >> >>> On Sat, Apr 25, 2020, 09:16 Don Schroder wrote: >>> >>> Bob, >>> >>> Is it safe to run my K2 using Anderson Power Pole connections, and/or >>> RigRunner equipment? >>> >>> For my info, what is the reason for NOT using them? >>> >>> I?m rewiring, and I want to do it right! >>> >>> Gunny, KE0PVQ >>> >>> Sent from Mail for >>> Windows 10 >>> >>> From: Gmail >>> Sent: Saturday, April 25, 2020 9:03 AM >>> To: Bob McGraw K4TAX >>> Cc: Elecraft at mailman.qth.net >>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>> >>> Nuts, just measure the drop between radio and power supply see if it is >>> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. >>> Ray >>> W8LYJ >>> >>> Sent from my iPad >>> >>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: >>>> >>>> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where >>> it belongs. NEVER NEVER NEVER use a power distribution strip to power a >>> 100 watt radio. ALWAYS connect the radio direct to the power supply >>> terminals. NO exceptions! >>>> 73 >>>> >>>> Bob, K4TAX >>>> >>>> >>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>> After more checking, I suspect the internal 100W amp is the common >>> factor >>>>> in the poor keying characteristics I'm seeing and hearing about from my >>>>> rig. I am trying to determine if my power supply is doing it's job. >>>>> >>>>> I'm using a TenTec 963 switching supply rated at 25A continuous. At >>> rest >>>>> the K3S panel display shows 13.6V, with full power key down it dips to >>> 11.5 >>>>> or so. This seems like a lot. I'm running the power cable thru a >>>>> RigRunner Powerpole strip. If I can dig out another power supply from >>> the >>>>> packed boxes I can wire the K3S directly to the supply. >>>>> >>>>> Is 11.5V at key down enough to cause the slow rise time being reported? >>>>> >>>>> 73 de Chuck, WS1L >>>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>> Help: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>> Please help support this email list: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>> Message delivered to anyone1545 at gmail.com >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>> Help: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>> Please help support this email list: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 c-hawley at illinois.edu From bbaines at mac.com Sat Apr 25 11:38:56 2020 From: bbaines at mac.com (Barry Baines) Date: Sat, 25 Apr 2020 10:38:56 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <19277a94-b90e-c2f6-f4f1-ca2ea24ce437@optonline.net> References: <91e7c603-532b-4e5e-5a44-6f8c403eccab@blomand.net> <19277a94-b90e-c2f6-f4f1-ca2ea24ce437@optonline.net> Message-ID: Ron: > On Apr 25, 2020, at 10:12 AM, Ron Manfredi wrote: > > Fewer power supplies (meaning the switching type) have actual terminal bolts to use with ring connectors. If the supply doesn't have that type of connector, then what alternatives are there to being able to use one supply in a station that has more than one high current rig, (even if they are not used at the same time) since the connectors on most of these supplies will take at most only one 10-12 gauge cable? A number of power supplies now feature Anderson Power Poles. Is that the connector you?re referring? Of course, Elecraft transceivers also use the Anderson Power Pole connectors as does Flex Radio System transceivers. West Mountain Radio offers the ?Rig Runner? series of DC Power Splitters using Anderson Power Poles that feature varying number of connections as well as individual fused ports (they use Automobile fuses) where if the fuse blows the port lights up, with the device rated for 40A. I just saw an advertisement for a new product (4006U) that also includes two UBS power ports as well. See: http://www.westmountainradio.com/rigrunner.php There are also other manufacturers/distributors of DC Power Splitters, such as Powerwerx, and MFJ that offer their own variations of Anderson Power Pole DC Power Splitters. Installing Anderson Power poles is relatively easy if you use the proper crimper. All of my DC power cables use Anderson Power Poles because the DC Power Splitters make it easy to wire the station, it is easy to add/remove power connections, and provide a standard fitting that makes it easy to relocate equipment to another part of the station or somewhere else (e.g. I use them in my Volvo XC70 as all of my ham gear works off DC Power Splitters). Each connection can also be locked in place in the power splitter with an insert that comes with the power splitter (they?re provided with the WMR products; otherwise, you can buy them separately). FWIW, Barry Baines, WD4ASW Keller, TX > > Ron WA2EIO > > > On 4/25/2020 10:56 AM, Bob McGraw K4TAX wrote: >> Jim et al: >> >> Thank you for confirming exactly what I've written and suggested. >> >> TO ALL........PLEASE do not use power strips to supply DC to your radio from your power supply. ALWAYS connect the radio direct to the power supply terminals. The power pole and DC distributions strips are ok for LED lightning and such but NEVER for anything drawing over about 2 amps. I don't care what the manufacturer says they are "rated" for. E = I x R. Every connections adds resistance. Do the math. >> >> 73 >> >> Bob, K4TAX >> >> On 4/25/2020 9:32 AM, Jim Rhodes wrote: >>> I had been using a power pole strip to power everything. After seeing some discussion on this topic some time ago I found that in the string of 3 power pole connections in my setup at the time I was seeing around a 1 volt drop in the voltage on the K3 metering between receive and 100 watts keydown. That voltage drop was confirmed by my VOM so I wired the rig directly to the supply and the voltage drop was less than 0.25 volts. That is the way my rigs and VHF/UHF amps will be connected from now on with only a fuse inline. The low current stuff will stay on the power pole strip where they do just fine lighting up lights and stuff. >>> >>> On Sat, Apr 25, 2020, 09:16 Don Schroder > wrote: >>> >>> Bob, >>> >>> Is it safe to run my K2 using Anderson Power Pole connections, >>> and/or RigRunner equipment? >>> >>> For my info, what is the reason for NOT using them? >>> >>> I?m rewiring, and I want to do it right! >>> >>> Gunny, KE0PVQ >>> >>> Sent from Mail for >>> Windows 10 >>> >>> From: Gmail> >>> Sent: Saturday, April 25, 2020 9:03 AM >>> To: Bob McGraw K4TAX>> > >>> Cc: Elecraft at mailman.qth.net >>> >> > >>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>> >>> Nuts, just measure the drop between radio and power supply see if >>> it is reasonable. Mine is 0.25 volts when transmitting. I run >>> 14.0 out of supply. >>> Ray >>> W8LYJ >>> >>> Sent from my iPad >>> >>> > On Apr 25, 2020, at 07:48, Bob McGraw K4TAX >> > wrote: >>> > >>> > ?As to the RigRunner power pole strip.........PUT IT IN THE >>> TRASH where it belongs. NEVER NEVER NEVER use a power >>> distribution strip to power a 100 watt radio. ALWAYS connect the >>> radio direct to the power supply terminals. NO exceptions! >>> > >>> > 73 >>> > >>> > Bob, K4TAX >>> > >>> > >>> >> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>> >> After more checking, I suspect the internal 100W amp is the >>> common factor >>> >> in the poor keying characteristics I'm seeing and hearing about >>> from my >>> >> rig. I am trying to determine if my power supply is doing it's >>> job. >>> >> >>> >> I'm using a TenTec 963 switching supply rated at 25A >>> continuous. At rest >>> >> the K3S panel display shows 13.6V, with full power key down it >>> dips to 11.5 >>> >> or so. This seems like a lot. I'm running the power cable thru a >>> >> RigRunner Powerpole strip. If I can dig out another power >>> supply from the >>> >> packed boxes I can wire the K3S directly to the supply. >>> >> >>> >> Is 11.5V at key down enough to cause the slow rise time being >>> reported? >>> >> >>> >> 73 de Chuck, WS1L >>> >> >>> > >>> > ______________________________________________________________ >>> > Elecraft mailing list >>> > Home: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>> > Help: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>> > Post: mailto:Elecraft at mailman.qth.net >>> >>> > >>> > This list hosted by: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>> > Please help support this email list: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>> > Message delivered to anyone1545 at gmail.com >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>> Help: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> >>> This list hosted by: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>> Please help support this email list: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 wa2eio at optonline.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 bbaines at mac.com From donwilh at embarqmail.com Sat Apr 25 11:42:35 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 25 Apr 2020 11:42:35 -0400 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <19277a94-b90e-c2f6-f4f1-ca2ea24ce437@optonline.net> References: <91e7c603-532b-4e5e-5a44-6f8c403eccab@blomand.net> <19277a94-b90e-c2f6-f4f1-ca2ea24ce437@optonline.net> Message-ID: Solder each power supply lead to a short length of #10 wire. Insulate the connection well. 73, Don W3FPR On 4/25/2020 11:12 AM, Ron Manfredi wrote: > Fewer power supplies (meaning the switching type) have actual terminal > bolts to use with ring connectors.? If the supply doesn't have that type > of connector, then what alternatives are there to being able to use one > supply in a station that has more than one high current rig,? (even if > they are not used at the same time) since the connectors on most of > these supplies will take at most only one 10-12 gauge cable? > > Ron?? WA2EIO From rmcgraw at blomand.net Sat Apr 25 11:59:48 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 25 Apr 2020 10:59:48 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <19277a94-b90e-c2f6-f4f1-ca2ea24ce437@optonline.net> References: <91e7c603-532b-4e5e-5a44-6f8c403eccab@blomand.net> <19277a94-b90e-c2f6-f4f1-ca2ea24ce437@optonline.net> Message-ID: <6f3023f8-1f4d-923f-0032-7caab7ff4fbc@blomand.net> I took off the original connectors and replaced them with suitable #10 bolts, nuts, insulating washers and flat washers. The point, if the supply doesn't have the connectors you need, then don't buy it!?? ? We are hams and hams have always made things work they way needed and as they should for the purpose. 73 Bob, K4TAX. On 4/25/2020 10:12 AM, Ron Manfredi wrote: > Fewer power supplies (meaning the switching type) have actual terminal > bolts to use with ring connectors.? If the supply doesn't have that > type of connector, then what alternatives are there to being able to > use one supply in a station that has more than one high current rig,? > (even if they are not used at the same time) since the connectors on > most of these supplies will take at most only one 10-12 gauge cable? > > Ron?? WA2EIO > > > On 4/25/2020 10:56 AM, Bob McGraw K4TAX wrote: >> Jim et al: >> >> Thank you for confirming? exactly what I've written and suggested. >> >> TO ALL........PLEASE do not use power strips to supply DC to your >> radio from your power supply.?? ALWAYS connect the radio direct to >> the power supply terminals.??? The power pole and DC distributions >> strips are ok for LED lightning and such but NEVER for anything >> drawing over about 2 amps.?? I don't care what the manufacturer says >> they are "rated" for.??? E = I x R.??? Every connections adds >> resistance.??? Do the math. >> >> 73 >> >> Bob, K4TAX >> >> On 4/25/2020 9:32 AM, Jim Rhodes wrote: >>> I had been using a power pole strip to power everything. After >>> seeing some discussion on this topic some time ago I found that in >>> the string of 3 power pole connections in my setup at the time I was >>> seeing around a 1 volt drop in the voltage on the K3 metering >>> between receive and 100 watts keydown. That voltage drop was >>> confirmed by my VOM so I wired the rig directly to the supply and >>> the voltage drop was less than 0.25 volts. That is the way my rigs >>> and VHF/UHF amps will be connected from now on with only a fuse >>> inline. The low current stuff will stay on the power pole strip >>> where they do just fine lighting up lights and stuff. >>> >>> On Sat, Apr 25, 2020, 09:16 Don Schroder >> > wrote: >>> >>> ??? Bob, >>> >>> ??? Is it safe to run my K2 using Anderson Power Pole connections, >>> ??? and/or RigRunner equipment? >>> >>> ??? For my info, what is the reason for NOT using them? >>> >>> ??? I?m rewiring, and I want to do it right! >>> >>> ??? Gunny, KE0PVQ >>> >>> ??? Sent from Mail for >>> ??? Windows 10 >>> >>> ??? From: Gmail>> > >>> ??? Sent: Saturday, April 25, 2020 9:03 AM >>> ??? To: Bob McGraw K4TAX>> ??? > >>> ??? Cc: Elecraft at mailman.qth.net >>> >> ??? > >>> ??? Subject: Re: [Elecraft] K3S poor CW keying further investigation >>> >>> ??? Nuts, just measure the drop between radio and power supply see if >>> ??? it is reasonable. Mine is 0.25 volts when transmitting.? I run >>> ??? 14.0 out of supply. >>> ??? Ray >>> ??? W8LYJ >>> >>> ??? Sent from my iPad >>> >>> ??? > On Apr 25, 2020, at 07:48, Bob McGraw K4TAX >> ??? > wrote: >>> ??? > >>> ??? > ?As to the RigRunner power pole strip.........PUT IT IN THE >>> ??? TRASH where it belongs.? ? NEVER NEVER NEVER use a power >>> ??? distribution strip to power a 100 watt radio.? ?ALWAYS connect the >>> ??? radio direct to the power supply terminals.? ?NO exceptions! >>> ??? > >>> ??? > 73 >>> ??? > >>> ??? > Bob, K4TAX >>> ??? > >>> ??? > >>> ??? >> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>> ??? >> After more checking, I suspect the internal 100W amp is the >>> ??? common factor >>> ??? >> in the poor keying characteristics I'm seeing and hearing about >>> ??? from my >>> ??? >> rig.? I am trying to determine if my power supply is doing it's >>> ??? job. >>> ??? >> >>> ??? >> I'm using a TenTec 963 switching supply rated at 25A >>> ??? continuous.? At rest >>> ??? >> the K3S panel display shows 13.6V, with full power key down it >>> ??? dips to 11.5 >>> ??? >> or so.? This seems like a lot.? I'm running the power cable >>> thru a >>> ??? >> RigRunner Powerpole strip.? If I can dig out another power >>> ??? supply from the >>> ??? >> packed boxes I can wire the K3S directly to the supply. >>> ??? >> >>> ??? >> Is 11.5V at key down enough to cause the slow rise time being >>> ??? reported? >>> ??? >> >>> ??? >> 73 de Chuck, WS1L >>> ??? >> >>> ??? > >>> ??? > ______________________________________________________________ >>> ??? > Elecraft mailing list >>> ??? > Home: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>> >>> ??? > Help: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>> >>> ??? > Post: mailto:Elecraft at mailman.qth.net >>> ??? >>> ??? > >>> ??? > This list hosted by: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>> >>> ??? > Please help support this email list: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>> >>> ??? > Message delivered to anyone1545 at gmail.com >>> ??? >>> ______________________________________________________________ >>> ??? Elecraft mailing list >>> ??? Home: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>> >>> ??? Help: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>> >>> ??? Post: mailto:Elecraft at mailman.qth.net >>> ??? >>> >>> ??? This list hosted by: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>> >>> ??? Please help support this email list: >>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 wa2eio at optonline.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 chandlerusm at gmail.com Sat Apr 25 12:01:41 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Sat, 25 Apr 2020 11:01:41 -0500 Subject: [Elecraft] Power supply V drop - was poor CW on K3S Message-ID: Here's an update. I replaced the power cable running from the powerstrip with a 3-foot length with glass fuse holders in each leg. I also adjusted the power supply to 14.50V at rest. The K3S now shows 14.2V at rest. At 100W TX the K3S shows 13.2V, so a 1 volt drop. Way too much. The power supply voltage measured at the terminals drops from 14.50 to 14.44 for full power TX. This seems too much, I had read the drop should be no more than 0.01V and this is 0.06V. So, suspecting the in line fuse holders I made up another cable with dual blade-fuse holders, which was worse. TX voltage on the K3S display dropped to 12.9V. I'm suspecting my power supply is to blame - it's a TenTec 963, a re-branded Astron SS-30. Alternatively, I have another commercial power cable with fuse holders I can cut down and try. Many thanks for all the help both here on the reflector and the direct emails from several fellows, and to Rich VE3KI for the on-air tests this morning! 73 de Chuck, WS1L -- =================== Chuck Chandler chandlerusm at gmail.com =================== From anyone1545 at gmail.com Sat Apr 25 12:10:03 2020 From: anyone1545 at gmail.com (Raymond) Date: Sat, 25 Apr 2020 10:10:03 -0600 Subject: [Elecraft] Power supply V drop - was poor CW on K3S In-Reply-To: References: Message-ID: <02684F48-E092-4F2A-8CDA-346EB1E0A1AD@gmail.com> If it?s a regulated power supply with crowbar And the radio has a fuse why are you using inline fuses? Sent from my iPhone > On Apr 25, 2020, at 10:04, Chuck Chandler wrote: > > ?Here's an update. > > I replaced the power cable running from the powerstrip with a 3-foot length > with glass fuse holders in each leg. I also adjusted the power supply to > 14.50V at rest. The K3S now shows 14.2V at rest. At 100W TX the K3S shows > 13.2V, so a 1 volt drop. Way too much. > > The power supply voltage measured at the terminals drops from 14.50 to > 14.44 for full power TX. This seems too much, I had read the drop should > be no more than 0.01V and this is 0.06V. > > So, suspecting the in line fuse holders I made up another cable with dual > blade-fuse holders, which was worse. TX voltage on the K3S display dropped > to 12.9V. > > I'm suspecting my power supply is to blame - it's a TenTec 963, a > re-branded Astron SS-30. Alternatively, I have another commercial power > cable with fuse holders I can cut down and try. > > Many thanks for all the help both here on the reflector and the direct > emails from several fellows, and to Rich VE3KI for the on-air tests this > morning! > > 73 de Chuck, WS1L > > -- > > > =================== > Chuck Chandler > chandlerusm 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 anyone1545 at gmail.com From n4zr at comcast.net Sat Apr 25 12:19:17 2020 From: n4zr at comcast.net (N4ZR) Date: Sat, 25 Apr 2020 12:19:17 -0400 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <7D4291CD-AE7B-4977-949C-D7814950C6E6@illinois.edu> References: <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> <7D4291CD-AE7B-4977-949C-D7814950C6E6@illinois.edu> Message-ID: <13506111-e55c-358d-4f8e-554c31bfc479@comcast.net> That's right - my focus was (perhaps too narrowly) on the behavior of the power supply under load, not on losses in the system.? Now if someone can just tell me how to read the voltage at the transceiver - I know there's a menu setting somewhere but my radio is fairly early and the manual doesn't say. 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: > I did notice that the post mentioned that his power supply dipped in voltage but as for preventing issues due to low voltage, it's not your voltmeter on the power supply that is the proper indicator. It is the voltage on the input to the K3 that you should be noting. It's available on the menu and displays in the VFO B area on the screen. > > Jack BMW Motorcycles > Chuck KE9UW > c-hawley at illinois.edu > > Sent from my iPad > >> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >> >> ?For whatever it may be worth, my K3 is run through a West Mountain RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even flicker when I go key-down at 100 watts. >> >> I'm wondering if a 25-amp-rated supply (perhaps a little optimistic) might be to blame. My K3 draws 20.2 amps at 100 watts key down. >> >> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>> I had been using a power pole strip to power everything. After seeing some >>> discussion on this topic some time ago I found that in the string of 3 >>> power pole connections in my setup at the time I was seeing around a 1 volt >>> drop in the voltage on the K3 metering between receive and 100 watts >>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>> directly to the supply and the voltage drop was less than 0.25 volts. That >>> is the way my rigs and VHF/UHF amps will be connected from now on with only >>> a fuse inline. The low current stuff will stay on the power pole strip >>> where they do just fine lighting up lights and stuff. >>> >>>> On Sat, Apr 25, 2020, 09:16 Don Schroder wrote: >>>> >>>> Bob, >>>> >>>> Is it safe to run my K2 using Anderson Power Pole connections, and/or >>>> RigRunner equipment? >>>> >>>> For my info, what is the reason for NOT using them? >>>> >>>> I?m rewiring, and I want to do it right! >>>> >>>> Gunny, KE0PVQ >>>> >>>> Sent from Mail for >>>> Windows 10 >>>> >>>> From: Gmail >>>> Sent: Saturday, April 25, 2020 9:03 AM >>>> To: Bob McGraw K4TAX >>>> Cc: Elecraft at mailman.qth.net >>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>> >>>> Nuts, just measure the drop between radio and power supply see if it is >>>> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. >>>> Ray >>>> W8LYJ >>>> >>>> Sent from my iPad >>>> >>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: >>>>> >>>>> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where >>>> it belongs. NEVER NEVER NEVER use a power distribution strip to power a >>>> 100 watt radio. ALWAYS connect the radio direct to the power supply >>>> terminals. NO exceptions! >>>>> 73 >>>>> >>>>> Bob, K4TAX >>>>> >>>>> >>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>> After more checking, I suspect the internal 100W amp is the common >>>> factor >>>>>> in the poor keying characteristics I'm seeing and hearing about from my >>>>>> rig. I am trying to determine if my power supply is doing it's job. >>>>>> >>>>>> I'm using a TenTec 963 switching supply rated at 25A continuous. At >>>> rest >>>>>> the K3S panel display shows 13.6V, with full power key down it dips to >>>> 11.5 >>>>>> or so. This seems like a lot. I'm running the power cable thru a >>>>>> RigRunner Powerpole strip. If I can dig out another power supply from >>>> the >>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>> >>>>>> Is 11.5V at key down enough to cause the slow rise time being reported? >>>>>> >>>>>> 73 de Chuck, WS1L >>>>>> >>>>> ______________________________________________________________ >>>>> Elecraft mailing list >>>>> Home: >>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>> Help: >>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>> Post: mailto:Elecraft at mailman.qth.net >>>>> >>>>> This list hosted by: >>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>> Please help support this email list: >>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>> Message delivered to anyone1545 at gmail.com >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: >>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>> Help: >>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: >>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>> Please help support this email list: >>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 c-hawley at illinois.edu From hs0zed at gmail.com Sat Apr 25 12:24:12 2020 From: hs0zed at gmail.com (Martin Sole) Date: Sat, 25 Apr 2020 23:24:12 +0700 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <13506111-e55c-358d-4f8e-554c31bfc479@comcast.net> References: <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> <7D4291CD-AE7B-4977-949C-D7814950C6E6@illinois.edu> <13506111-e55c-358d-4f8e-554c31bfc479@comcast.net> Message-ID: <70831233-4c14-cc0b-bf6f-60406f6e9984@gmail.com> DISP and rotate vfo B for desired measurement option. Martin, HS0ZED On 25/04/2020 23:19, N4ZR wrote: > That's right - my focus was (perhaps too narrowly) on the behavior of > the power supply under load, not on losses in the system.? Now if > someone can just tell me how to read the voltage at the transceiver - > I know there's a menu setting somewhere but my radio is fairly early > and the manual doesn't say. > > 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: >> I did notice that the post mentioned that his power supply dipped in >> voltage but as for preventing issues due to low voltage, it's not >> your voltmeter on the power supply that is the proper indicator. It >> is the voltage on the input to the K3 that you should be noting. It's >> available on the menu and displays in the VFO B area on the screen. >> >> Jack BMW Motorcycles >> Chuck KE9UW >> c-hawley at illinois.edu >> >> Sent from my iPad >> >>> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >>> >>> ?For whatever it may be worth, my K3 is run through a West Mountain >>> RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even >>> flicker when I go key-down at 100 watts. >>> >>> I'm wondering if a 25-amp-rated supply (perhaps a little optimistic) >>> might be to blame.? My K3 draws 20.2 amps at 100 watts key down. >>> >>> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>>> I had been using a power pole strip to power everything. After >>>> seeing some >>>> discussion on this topic some time ago I found that in the string of 3 >>>> power pole connections in my setup at the time I was seeing around >>>> a 1 volt >>>> drop in the voltage on the K3 metering between receive and 100 watts >>>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>>> directly to the supply and the voltage drop was less than 0.25 >>>> volts. That >>>> is the way my rigs and VHF/UHF amps will be connected from now on >>>> with only >>>> a fuse inline. The low current stuff will stay on the power pole strip >>>> where they do just fine lighting up lights and stuff. >>>> >>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder >>>>> wrote: >>>>> >>>>> Bob, >>>>> >>>>> Is it safe to run my K2 using Anderson Power Pole connections, and/or >>>>> RigRunner equipment? >>>>> >>>>> For my info, what is the reason for NOT using them? >>>>> >>>>> I?m rewiring, and I want to do it right! >>>>> >>>>> Gunny, KE0PVQ >>>>> >>>>> Sent from Mail for >>>>> Windows 10 >>>>> >>>>> From: Gmail >>>>> Sent: Saturday, April 25, 2020 9:03 AM >>>>> To: Bob McGraw K4TAX >>>>> Cc: Elecraft at mailman.qth.net >>>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>>> >>>>> Nuts, just measure the drop between radio and power supply see if >>>>> it is >>>>> reasonable. Mine is 0.25 volts when transmitting.? I run 14.0 out >>>>> of supply. >>>>> Ray >>>>> W8LYJ >>>>> >>>>> Sent from my iPad >>>>> >>>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX >>>>>> wrote: >>>>>> >>>>>> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH >>>>>> where >>>>> it belongs.??? NEVER NEVER NEVER use a power distribution strip to >>>>> power a >>>>> 100 watt radio.?? ALWAYS connect the radio direct to the power supply >>>>> terminals.?? NO exceptions! >>>>>> 73 >>>>>> >>>>>> Bob, K4TAX >>>>>> >>>>>> >>>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>>> After more checking, I suspect the internal 100W amp is the common >>>>> factor >>>>>>> in the poor keying characteristics I'm seeing and hearing about >>>>>>> from my >>>>>>> rig.? I am trying to determine if my power supply is doing it's >>>>>>> job. >>>>>>> >>>>>>> I'm using a TenTec 963 switching supply rated at 25A >>>>>>> continuous.? At >>>>> rest >>>>>>> the K3S panel display shows 13.6V, with full power key down it >>>>>>> dips to >>>>> 11.5 >>>>>>> or so.? This seems like a lot. I'm running the power cable thru a >>>>>>> RigRunner Powerpole strip.? If I can dig out another power >>>>>>> supply from >>>>> the >>>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>>> >>>>>>> Is 11.5V at key down enough to cause the slow rise time being >>>>>>> reported? >>>>>>> >>>>>>> 73 de Chuck, WS1L >>>>>>> >>>>>> ______________________________________________________________ >>>>>> Elecraft mailing list >>>>>> Home: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>> >>>>>> Help: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>> >>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>> >>>>>> This list hosted by: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>> >>>>>> Please help support this email list: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>> >>>>>> Message delivered to anyone1545 at gmail.com >>>>> ______________________________________________________________ >>>>> Elecraft mailing list >>>>> Home: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>> >>>>> Help: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>> >>>>> Post: mailto:Elecraft at mailman.qth.net >>>>> >>>>> This list hosted by: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>> >>>>> Please help support this email list: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 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 hs0zed at gmail.com From rmcgraw at blomand.net Sat Apr 25 12:26:00 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 25 Apr 2020 11:26:00 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: <91e7c603-532b-4e5e-5a44-6f8c403eccab@blomand.net> <19277a94-b90e-c2f6-f4f1-ca2ea24ce437@optonline.net> Message-ID: Change the connectors on the power supply to accommodate several ring type connectors.?? Use 1" long ? #10 bolts, nuts, flat washers and insulating washers which are easy to find at your local hardware store and are very easy to use and replace.? Then you can connect 8 to 10 pieces of equipment to one power supply. Remember, we are ham radio operators and that is what we've always done.?? But as I have done, with two stations, I have two power supplies. 73 Bob, K4TAX On 4/25/2020 10:42 AM, Don Wilhelm wrote: > Solder each power supply lead to a short length of #10 wire.? Insulate > the connection well. > > 73, > Don W3FPR > > On 4/25/2020 11:12 AM, Ron Manfredi wrote: >> Fewer power supplies (meaning the switching type) have actual >> terminal bolts to use with ring connectors.? If the supply doesn't >> have that type of connector, then what alternatives are there to >> being able to use one supply in a station that has more than one high >> current rig,? (even if they are not used at the same time) since the >> connectors on most of these supplies will take at most only one 10-12 >> gauge cable? >> >> Ron?? WA2EIO > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 c-hawley at illinois.edu Sat Apr 25 12:26:19 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sat, 25 Apr 2020 16:26:19 +0000 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <13506111-e55c-358d-4f8e-554c31bfc479@comcast.net> References: <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> <7D4291CD-AE7B-4977-949C-D7814950C6E6@illinois.edu>, <13506111-e55c-358d-4f8e-554c31bfc479@comcast.net> Message-ID: <3DF99550-D7F9-435A-941F-3C25CDC256D3@illinois.edu> Tap DISC and rotate the B knob for various including voltage readout Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Apr 25, 2020, at 11:19 AM, N4ZR wrote: > > ?That's right - my focus was (perhaps too narrowly) on the behavior of the power supply under load, not on losses in the system. Now if someone can just tell me how to read the voltage at the transceiver - I know there's a menu setting somewhere but my radio is fairly early and the manual doesn't say. > > 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: >> I did notice that the post mentioned that his power supply dipped in voltage but as for preventing issues due to low voltage, it's not your voltmeter on the power supply that is the proper indicator. It is the voltage on the input to the K3 that you should be noting. It's available on the menu and displays in the VFO B area on the screen. >> >> Jack BMW Motorcycles >> Chuck KE9UW >> c-hawley at illinois.edu >> >> Sent from my iPad >> >>>> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >>> >>> ?For whatever it may be worth, my K3 is run through a West Mountain RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even flicker when I go key-down at 100 watts. >>> >>> I'm wondering if a 25-amp-rated supply (perhaps a little optimistic) might be to blame. My K3 draws 20.2 amps at 100 watts key down. >>> >>> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>>> I had been using a power pole strip to power everything. After seeing some >>>> discussion on this topic some time ago I found that in the string of 3 >>>> power pole connections in my setup at the time I was seeing around a 1 volt >>>> drop in the voltage on the K3 metering between receive and 100 watts >>>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>>> directly to the supply and the voltage drop was less than 0.25 volts. That >>>> is the way my rigs and VHF/UHF amps will be connected from now on with only >>>> a fuse inline. The low current stuff will stay on the power pole strip >>>> where they do just fine lighting up lights and stuff. >>>> >>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder wrote: >>>>> >>>>> Bob, >>>>> >>>>> Is it safe to run my K2 using Anderson Power Pole connections, and/or >>>>> RigRunner equipment? >>>>> >>>>> For my info, what is the reason for NOT using them? >>>>> >>>>> I?m rewiring, and I want to do it right! >>>>> >>>>> Gunny, KE0PVQ >>>>> >>>>> Sent from Mail for >>>>> Windows 10 >>>>> >>>>> From: Gmail >>>>> Sent: Saturday, April 25, 2020 9:03 AM >>>>> To: Bob McGraw K4TAX >>>>> Cc: Elecraft at mailman.qth.net >>>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>>> >>>>> Nuts, just measure the drop between radio and power supply see if it is >>>>> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. >>>>> Ray >>>>> W8LYJ >>>>> >>>>> Sent from my iPad >>>>> >>>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: >>>>>> >>>>>> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where >>>>> it belongs. NEVER NEVER NEVER use a power distribution strip to power a >>>>> 100 watt radio. ALWAYS connect the radio direct to the power supply >>>>> terminals. NO exceptions! >>>>>> 73 >>>>>> >>>>>> Bob, K4TAX >>>>>> >>>>>> >>>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>>> After more checking, I suspect the internal 100W amp is the common >>>>> factor >>>>>>> in the poor keying characteristics I'm seeing and hearing about from my >>>>>>> rig. I am trying to determine if my power supply is doing it's job. >>>>>>> >>>>>>> I'm using a TenTec 963 switching supply rated at 25A continuous. At >>>>> rest >>>>>>> the K3S panel display shows 13.6V, with full power key down it dips to >>>>> 11.5 >>>>>>> or so. This seems like a lot. I'm running the power cable thru a >>>>>>> RigRunner Powerpole strip. If I can dig out another power supply from >>>>> the >>>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>>> >>>>>>> Is 11.5V at key down enough to cause the slow rise time being reported? >>>>>>> >>>>>>> 73 de Chuck, WS1L >>>>>>> >>>>>> ______________________________________________________________ >>>>>> Elecraft mailing list >>>>>> Home: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>> Help: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>> >>>>>> This list hosted by: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>> Please help support this email list: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>>> Message delivered to anyone1545 at gmail.com >>>>> ______________________________________________________________ >>>>> Elecraft mailing list >>>>> Home: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>> Help: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>> Post: mailto:Elecraft at mailman.qth.net >>>>> >>>>> This list hosted by: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>> Please help support this email list: >>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 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 c-hawley at illinois.edu From kg9hfrank at gmail.com Sat Apr 25 12:27:27 2020 From: kg9hfrank at gmail.com (Frank Krozel) Date: Sat, 25 Apr 2020 11:27:27 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <70831233-4c14-cc0b-bf6f-60406f6e9984@gmail.com> References: <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> <7D4291CD-AE7B-4977-949C-D7814950C6E6@illinois.edu> <13506111-e55c-358d-4f8e-554c31bfc479@comcast.net> <70831233-4c14-cc0b-bf6f-60406f6e9984@gmail.com> Message-ID: I agree with Bob, TAX. if it doesn't have the connectors you need, then don't buy it. The message is pretty clear if one has the needed connectors for that power level and the other doesn?t. One sits on the shelf of the vendor, the other one flys off the shelf. -73- Frank KG9H kg9hfrank at gmail.com > On Apr 25, 2020, at 11:24 AM, Martin Sole wrote: > > DISP and rotate vfo B for desired measurement option. > > Martin, HS0ZED > > > > On 25/04/2020 23:19, N4ZR wrote: >> That's right - my focus was (perhaps too narrowly) on the behavior of the power supply under load, not on losses in the system. Now if someone can just tell me how to read the voltage at the transceiver - I know there's a menu setting somewhere but my radio is fairly early and the manual doesn't say. >> >> 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: >>> I did notice that the post mentioned that his power supply dipped in voltage but as for preventing issues due to low voltage, it's not your voltmeter on the power supply that is the proper indicator. It is the voltage on the input to the K3 that you should be noting. It's available on the menu and displays in the VFO B area on the screen. >>> >>> Jack BMW Motorcycles >>> Chuck KE9UW >>> c-hawley at illinois.edu >>> >>> Sent from my iPad >>> >>>> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >>>> >>>> ?For whatever it may be worth, my K3 is run through a West Mountain RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even flicker when I go key-down at 100 watts. >>>> >>>> I'm wondering if a 25-amp-rated supply (perhaps a little optimistic) might be to blame. My K3 draws 20.2 amps at 100 watts key down. >>>> >>>> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>>>> I had been using a power pole strip to power everything. After seeing some >>>>> discussion on this topic some time ago I found that in the string of 3 >>>>> power pole connections in my setup at the time I was seeing around a 1 volt >>>>> drop in the voltage on the K3 metering between receive and 100 watts >>>>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>>>> directly to the supply and the voltage drop was less than 0.25 volts. That >>>>> is the way my rigs and VHF/UHF amps will be connected from now on with only >>>>> a fuse inline. The low current stuff will stay on the power pole strip >>>>> where they do just fine lighting up lights and stuff. >>>>> >>>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder wrote: >>>>>> >>>>>> Bob, >>>>>> >>>>>> Is it safe to run my K2 using Anderson Power Pole connections, and/or >>>>>> RigRunner equipment? >>>>>> >>>>>> For my info, what is the reason for NOT using them? >>>>>> >>>>>> I?m rewiring, and I want to do it right! >>>>>> >>>>>> Gunny, KE0PVQ >>>>>> >>>>>> Sent from Mail for >>>>>> Windows 10 >>>>>> >>>>>> From: Gmail >>>>>> Sent: Saturday, April 25, 2020 9:03 AM >>>>>> To: Bob McGraw K4TAX >>>>>> Cc: Elecraft at mailman.qth.net >>>>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>>>> >>>>>> Nuts, just measure the drop between radio and power supply see if it is >>>>>> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. >>>>>> Ray >>>>>> W8LYJ >>>>>> >>>>>> Sent from my iPad >>>>>> >>>>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: >>>>>>> >>>>>>> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where >>>>>> it belongs. NEVER NEVER NEVER use a power distribution strip to power a >>>>>> 100 watt radio. ALWAYS connect the radio direct to the power supply >>>>>> terminals. NO exceptions! >>>>>>> 73 >>>>>>> >>>>>>> Bob, K4TAX >>>>>>> >>>>>>> >>>>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>>>> After more checking, I suspect the internal 100W amp is the common >>>>>> factor >>>>>>>> in the poor keying characteristics I'm seeing and hearing about from my >>>>>>>> rig. I am trying to determine if my power supply is doing it's job. >>>>>>>> >>>>>>>> I'm using a TenTec 963 switching supply rated at 25A continuous. At >>>>>> rest >>>>>>>> the K3S panel display shows 13.6V, with full power key down it dips to >>>>>> 11.5 >>>>>>>> or so. This seems like a lot. I'm running the power cable thru a >>>>>>>> RigRunner Powerpole strip. If I can dig out another power supply from >>>>>> the >>>>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>>>> >>>>>>>> Is 11.5V at key down enough to cause the slow rise time being reported? >>>>>>>> >>>>>>>> 73 de Chuck, WS1L >>>>>>>> >>>>>>> ______________________________________________________________ >>>>>>> Elecraft mailing list >>>>>>> Home: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>>> Help: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>>> >>>>>>> This list hosted by: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>>> Please help support this email list: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>>>> Message delivered to anyone1545 at gmail.com >>>>>> ______________________________________________________________ >>>>>> Elecraft mailing list >>>>>> Home: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>> Help: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>> >>>>>> This list hosted by: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>> Please help support this email list: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 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 hs0zed 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 kg9hfrank at gmail.com From jim at audiosystemsgroup.com Sat Apr 25 12:53:43 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sat, 25 Apr 2020 09:53:43 -0700 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: On 4/25/2020 5:13 AM, Chuck Chandler wrote: > At rest > the K3S panel display shows 13.6V, with full power key down it dips to 11.5 > or so. This seems like a lot. I'm running the power cable thru a > RigRunner Powerpole strip. If I can dig out another power supply from the > packed boxes I can wire the K3S directly to the supply. The power strip and the cable length combine to cause the high drop. The rig should always be powered directly from the power supply, and with the shortest practical cable. There are several vendors who sell PowerPole connector parts. All that's needed to install them are a soldering iron, diagonal cutters, and decent needlenose pliers. It's not too difficult to make a Y-cable so that you can feed a single PSU to both the radio and the power strip. 73, Jim K9YC From n4zr at comcast.net Sat Apr 25 12:54:37 2020 From: n4zr at comcast.net (N4ZR) Date: Sat, 25 Apr 2020 12:54:37 -0400 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <70831233-4c14-cc0b-bf6f-60406f6e9984@gmail.com> References: <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> <7D4291CD-AE7B-4977-949C-D7814950C6E6@illinois.edu> <13506111-e55c-358d-4f8e-554c31bfc479@comcast.net> <70831233-4c14-cc0b-bf6f-60406f6e9984@gmail.com> Message-ID: <8c661f24-db1e-f5a8-4715-cda919f9d2b2@comcast.net> Thanks, Martin - I take it all back - my radio drops the voltage down to 11.0 volts at 100 watts key down.? I'm really surprised, because I figured that the breakers in the 4005i wouldn't have so much drop.I'll have to figure out how best to siamese my power supply output so that it goes both to the RigRunner and directly to the radio.? That'll leave the power supply's fusing as the only protection for the radio, but I guess that's OK. 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 4/25/2020 12:24 PM, Martin Sole wrote: > DISP and rotate vfo B for desired measurement option. > > Martin, HS0ZED > > > > On 25/04/2020 23:19, N4ZR wrote: >> That's right - my focus was (perhaps too narrowly) on the behavior of >> the power supply under load, not on losses in the system.? Now if >> someone can just tell me how to read the voltage at the transceiver - >> I know there's a menu setting somewhere but my radio is fairly early >> and the manual doesn't say. >> >> 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: >>> I did notice that the post mentioned that his power supply dipped in >>> voltage but as for preventing issues due to low voltage, it's not >>> your voltmeter on the power supply that is the proper indicator. It >>> is the voltage on the input to the K3 that you should be noting. >>> It's available on the menu and displays in the VFO B area on the >>> screen. >>> >>> Jack BMW Motorcycles >>> Chuck KE9UW >>> c-hawley at illinois.edu >>> >>> Sent from my iPad >>> >>>> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >>>> >>>> ?For whatever it may be worth, my K3 is run through a West Mountain >>>> RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even >>>> flicker when I go key-down at 100 watts. >>>> >>>> I'm wondering if a 25-amp-rated supply (perhaps a little >>>> optimistic) might be to blame.? My K3 draws 20.2 amps at 100 watts >>>> key down. >>>> >>>> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>>>> I had been using a power pole strip to power everything. After >>>>> seeing some >>>>> discussion on this topic some time ago I found that in the string >>>>> of 3 >>>>> power pole connections in my setup at the time I was seeing around >>>>> a 1 volt >>>>> drop in the voltage on the K3 metering between receive and 100 watts >>>>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>>>> directly to the supply and the voltage drop was less than 0.25 >>>>> volts. That >>>>> is the way my rigs and VHF/UHF amps will be connected from now on >>>>> with only >>>>> a fuse inline. The low current stuff will stay on the power pole >>>>> strip >>>>> where they do just fine lighting up lights and stuff. >>>>> >>>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder >>>>>> wrote: >>>>>> >>>>>> Bob, >>>>>> >>>>>> Is it safe to run my K2 using Anderson Power Pole connections, >>>>>> and/or >>>>>> RigRunner equipment? >>>>>> >>>>>> For my info, what is the reason for NOT using them? >>>>>> >>>>>> I?m rewiring, and I want to do it right! >>>>>> >>>>>> Gunny, KE0PVQ >>>>>> >>>>>> Sent from Mail for >>>>>> Windows 10 >>>>>> >>>>>> From: Gmail >>>>>> Sent: Saturday, April 25, 2020 9:03 AM >>>>>> To: Bob McGraw K4TAX >>>>>> Cc: Elecraft at mailman.qth.net >>>>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>>>> >>>>>> Nuts, just measure the drop between radio and power supply see if >>>>>> it is >>>>>> reasonable. Mine is 0.25 volts when transmitting.? I run 14.0 out >>>>>> of supply. >>>>>> Ray >>>>>> W8LYJ >>>>>> >>>>>> Sent from my iPad >>>>>> >>>>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX >>>>>>> wrote: >>>>>>> >>>>>>> ?As to the RigRunner power pole strip.........PUT IT IN THE >>>>>>> TRASH where >>>>>> it belongs.??? NEVER NEVER NEVER use a power distribution strip >>>>>> to power a >>>>>> 100 watt radio.?? ALWAYS connect the radio direct to the power >>>>>> supply >>>>>> terminals.?? NO exceptions! >>>>>>> 73 >>>>>>> >>>>>>> Bob, K4TAX >>>>>>> >>>>>>> >>>>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>>>> After more checking, I suspect the internal 100W amp is the common >>>>>> factor >>>>>>>> in the poor keying characteristics I'm seeing and hearing about >>>>>>>> from my >>>>>>>> rig.? I am trying to determine if my power supply is doing it's >>>>>>>> job. >>>>>>>> >>>>>>>> I'm using a TenTec 963 switching supply rated at 25A >>>>>>>> continuous.? At >>>>>> rest >>>>>>>> the K3S panel display shows 13.6V, with full power key down it >>>>>>>> dips to >>>>>> 11.5 >>>>>>>> or so.? This seems like a lot. I'm running the power cable thru a >>>>>>>> RigRunner Powerpole strip.? If I can dig out another power >>>>>>>> supply from >>>>>> the >>>>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>>>> >>>>>>>> Is 11.5V at key down enough to cause the slow rise time being >>>>>>>> reported? >>>>>>>> >>>>>>>> 73 de Chuck, WS1L >>>>>>>> >>>>>>> ______________________________________________________________ >>>>>>> Elecraft mailing list >>>>>>> Home: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>> >>>>>>> Help: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>> >>>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>>> >>>>>>> This list hosted by: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>> >>>>>>> Please help support this email list: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>>> >>>>>>> Message delivered to anyone1545 at gmail.com >>>>>> ______________________________________________________________ >>>>>> Elecraft mailing list >>>>>> Home: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>> >>>>>> Help: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>> >>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>> >>>>>> This list hosted by: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>> >>>>>> Please help support this email list: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 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 hs0zed 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 n4zr at comcast.net From chandlerusm at gmail.com Sat Apr 25 13:09:42 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Sat, 25 Apr 2020 12:09:42 -0500 Subject: [Elecraft] Power supply update Message-ID: I'm trying to keep the subject line updated... I'm now powering the K3S with just under 3 feet of #10, direct from the power supply to the rig, nothing else in the line. The K3S reads 14.2V at rest, 13.6V at full power out. The power supply at the terminals, using my DVM, reads 14.50 at rest, 14.44 full power out. The keying waveform looks better. I'll round up a local or two for some on-air tests later. Many thanks for the help! 73 de Chuck, WS1L -- =================== Chuck Chandler chandlerusm at gmail.com =================== From ch at murgatroid.com Sat Apr 25 13:35:11 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Sat, 25 Apr 2020 10:35:11 -0700 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: If they are paralleling two 35A diodes in the new builds, they may have repeated the same mistake. Does this give a 50% derating (a typical factor) for full load forward current? I dunno. One can do the math [1] and figure it out. A 50 A bridge (no need to parallel) is OK by design. That's just a smidge under 50% derating. I used a 75A bridge, IIRC. 73 de AI6KG [1] https://www.st.com/resource/en/application_note/dm00098381-current-sharing-in-parallel-diodes-stmicroelectronics.pdf On Fri, Apr 24, 2020 at 12:11 PM Ray Albers wrote: > This thread started as my description of the failure of my Astron RS-20A > power supply, caused by a bad electrolytic capacitor on the regulator > circuit board. Several hams posted advice that a 20Amp supply was really > too small for a K3/100, especially if running full power. This led me to > order an Astron RS-35 supply. > > Chris Hoover, AI6KG, posted the below advice, warning about possible > under- engineered rectifier diode arrangement in the RS-35A. > > Today the big brown truck delivered my RS-35M-AP (the M and AP signify it > has meters and Anderson Power Poles on the front panel). Chris speculated > that Astron may have made changes more recently. So the first thing I did > was to open the case to check out the rectifier arrangement. Here's what I > found: > > My unit bears Serial Number 2019110051. I am speculating that the leading > digits 2019 signifies 2019 manufacture. Interestingly, the schematic that > shipped with the unit says Rev.1, April 2020. The schematic shows two > bridge rectifiers, DB3501. Two diodes are used from each bridge, and sure > enough the diodes are paralleled. The DB3501 is spec'd at 35A, so that > seems to be an improvement from the 25A diodes Chris mentioned. That's > what's in the schematic. Inside the power supply, there are indeed two > rectifier packages bolted to the floor, with heavy (maybe 14ga) solid wires > connecting terminals in parallel. I'm unable to confirm what the rating of > these diode packages is. They are not labeled DB3501. Instead, they say > "Astron 5001," and one of them also bears some Chinese characters. So > custom made for Astron? > > Well, I have ordered a 50Amp rated diode package, but am undecided if I > will replace the diodes in the supply. 35 Amp rated diode bridges is an > upgrade from the 25 diode bridges that Chris mentioned finding. It does > puzzle me why, with 50A (and better) diodes being so cheap, would Astron do > it this way? I can only think of two reasons: 1) We think having two > packages bolted to the case will make for better heat dissipation of the > total heat generated at max current and 2), the ever present, "because > we've always done it this way!" > > Finally, I'll mention that, like my old RS-20A, I found the negative > terminal bonded to the case. I consider this bad practice so I removed that > bond. > > 73 to all > Ray K2HYD > > > On Sun, Apr 19, 2020 at 6:07 PM Christopher Hoover > wrote: > >> You might want to replace the bridge rectifier in that new 35A power >> supply. >> >> Yep, right out of the box. >> >> At some point, Astron started shipping RS-35A's with a 25A bridge >> rectifier. They paralleled two out of four of the 25A diodes twice over >> to make, supposedly, a pair of 50A diodes for center-tapped full-wave >> rectification. That's not good engineering practice as the diodes in each >> pair will not share current equally because of differences in Vf and >> tempco. Once one blow, the other will blow shortly after. >> >> After I fixed my own RS-35A with this problem, I've helped several other >> hams fix this same problem in theirs. Not a random sample, as this is just >> folks on my local machine and in local clubs. >> >> You can get a 50A bridge in the same package for under $3. >> >> Perhaps Astron has fixed the problem since .... >> >> 73 de AI6KG -ch >> >> >> >> >> On Thu, Apr 16, 2020 at 10:28 AM Ray Albers wrote: >> >>> Many to all who posted/responded to my recent post about an electrolytic >>> capacitor failure in my power supply. Lots of very interesting reading >>> about peoples' industry experiences - thank you! >>> >>> Several have pointed out that using a 20A supply with my K3/100 is >>> pushing >>> close to (or over!) the limit. Even though I am measuring just 16A at >>> the >>> power level I'm running (and not running anything but the K3 on this >>> supply) I agree that I'm skirting the edges. So even though I've been >>> getting away with it for a long time, this morning I ordered a 35A >>> supply. >>> I'll probably sleep better. >>> >>> 73 >>> Ray K2HYD >>> >>> < >>> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon >>> > >>> Virus-free. >>> www.avast.com >>> < >>> https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link >>> > >>> <#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 ch at murgatroid.com >>> >> > > Virus-free. > www.avast.com > > <#m_-4856506079513387734_m_-8205502227484171307_DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> > From ch at murgatroid.com Sat Apr 25 13:40:49 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Sat, 25 Apr 2020 10:40:49 -0700 Subject: [Elecraft] About my capacitor failure (etc.) issue: In-Reply-To: References: Message-ID: We're getting far off the topic of Elecraft radios ... > > > Investigation showed that the steel chassis was not 100% flat and the > contact surface of the rectifier was compromised. Good lesson. Contact resistances need to be accounted for in the thermal model and analysis.. They are never zero like they are in the textbook. Nothing is ever flat (P-V). TIMs (thermal interface material) can help but need to go into the model. 73 de AI6KG On Fri, Apr 24, 2020 at 8:52 PM Martin Sole wrote: > I can add perhaps another data point on the rectifier matter. Years back > my employer, one of the largest ground to air radio manufacturers was > having failures with their mainstay transmitter, a 50w carrier AM unit. > It had a large toroidal transformer and a packaged rectifier. The > rectifier was bolted to the steel sub chassis and all was fine in > regular intermittent service but in ATIS service the transmitter runs > essentially continuous, so about 160-180 PEP, and rectifiers were failing. > > Investigation showed that the steel chassis was not 100% flat and the > contact surface of the rectifier was compromised. The fix was to insert > a (really) flat aluminium bar under the rectifier and bolt that to the > chassis. The bar did much of the heat sinking and had many more contact > patches with the steel sub chassis. Even paint ridges can be a source of > reduced contact leading to overheating of the rectifier package and > those things really do need to shift some heat. A good way to think of > it is like you would a PA transistor in a 100 watt amplifier, we > appreciate how well they need to be bolted to a heat sink and your > rectifier package wants very similar assessment. > > It's not so much the current that causes failure rather the heat is not > being dissipated properly from the smaller package. > > Martin, HS0ZED > > > On 25/04/2020 02:11, Ray Albers wrote: > > This thread started as my description of the failure of my Astron RS-20A > > power supply, caused by a bad electrolytic capacitor on the regulator > > circuit board. Several hams posted advice that a 20Amp supply was really > > too small for a K3/100, especially if running full power. This led me to > > order an Astron RS-35 supply. > > > > Chris Hoover, AI6KG, posted the below advice, warning about possible > under- > > engineered rectifier diode arrangement in the RS-35A. > > > > Today the big brown truck delivered my RS-35M-AP (the M and AP signify > it > > has meters and Anderson Power Poles on the front panel). Chris > speculated > > that Astron may have made changes more recently. So the first thing I did > > was to open the case to check out the rectifier arrangement. Here's > what I > > found: > > > > My unit bears Serial Number 2019110051. I am speculating that the > leading > > digits 2019 signifies 2019 manufacture. Interestingly, the schematic > that > > shipped with the unit says Rev.1, April 2020. The schematic shows two > > bridge rectifiers, DB3501. Two diodes are used from each bridge, and sure > > enough the diodes are paralleled. The DB3501 is spec'd at 35A, so that > > seems to be an improvement from the 25A diodes Chris mentioned. That's > > what's in the schematic. Inside the power supply, there are indeed two > > rectifier packages bolted to the floor, with heavy (maybe 14ga) solid > wires > > connecting terminals in parallel. I'm unable to confirm what the rating > of > > these diode packages is. They are not labeled DB3501. Instead, they say > > "Astron 5001," and one of them also bears some Chinese characters. So > > custom made for Astron? > > > > Well, I have ordered a 50Amp rated diode package, but am undecided if I > > will replace the diodes in the supply. 35 Amp rated diode bridges is an > > upgrade from the 25 diode bridges that Chris mentioned finding. It does > > puzzle me why, with 50A (and better) diodes being so cheap, would Astron > do > > it this way? I can only think of two reasons: 1) We think having two > > packages bolted to the case will make for better heat dissipation of the > > total heat generated at max current and 2), the ever present, "because > > we've always done it this way!" > > > > Finally, I'll mention that, like my old RS-20A, I found the negative > > terminal bonded to the case. I consider this bad practice so I removed > that > > bond. > > > > 73 to all > > Ray K2HYD > > > > > > On Sun, Apr 19, 2020 at 6:07 PM Christopher Hoover > > wrote: > > > >> You might want to replace the bridge rectifier in that new 35A power > >> supply. > >> > >> Yep, right out of the box. > >> > >> At some point, Astron started shipping RS-35A's with a 25A bridge > >> rectifier. They paralleled two out of four of the 25A diodes twice > over > >> to make, supposedly, a pair of 50A diodes for center-tapped full-wave > >> rectification. That's not good engineering practice as the diodes in > each > >> pair will not share current equally because of differences in Vf and > >> tempco. Once one blow, the other will blow shortly after. > >> > >> After I fixed my own RS-35A with this problem, I've helped several other > >> hams fix this same problem in theirs. Not a random sample, as this is > just > >> folks on my local machine and in local clubs. > >> > >> You can get a 50A bridge in the same package for under $3. > >> > >> Perhaps Astron has fixed the problem since .... > >> > >> 73 de AI6KG -ch > >> > >> > >> > >> > >> On Thu, Apr 16, 2020 at 10:28 AM Ray Albers > wrote: > >> > >>> Many to all who posted/responded to my recent post about an > electrolytic > >>> capacitor failure in my power supply. Lots of very interesting reading > >>> about peoples' industry experiences - thank you! > >>> > >>> Several have pointed out that using a 20A supply with my K3/100 is > pushing > >>> close to (or over!) the limit. Even though I am measuring just 16A at > the > >>> power level I'm running (and not running anything but the K3 on this > >>> supply) I agree that I'm skirting the edges. So even though I've been > >>> getting away with it for a long time, this morning I ordered a 35A > supply. > >>> I'll probably sleep better. > >>> > >>> 73 > >>> Ray K2HYD > >>> > >>> < > >>> > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon > >>> Virus-free. > >>> www.avast.com > >>> < > >>> > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link > >>> <#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 ch at murgatroid.com > >>> > > < > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=icon > > > > Virus-free. > > www.avast.com > > < > https://www.avast.com/sig-email?utm_medium=email&utm_source=link&utm_campaign=sig-email&utm_content=webmail&utm_term=link > > > > <#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 hs0zed 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 ch at murgatroid.com From k6dgw at foothill.net Sat Apr 25 14:19:45 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sat, 25 Apr 2020 11:19:45 -0700 Subject: [Elecraft] Power supply V drop - was poor CW on K3S In-Reply-To: References: Message-ID: <7c9ca85e-f064-c501-2f73-9d22f52bc439@foothill.net> "glass fuses"?? You want to avoid the in-line cylindrical cartridge fuses, the holders almost always have too much resistance.? Blade-type automotive fuses are much better ... much more contact surface, much more contact pressure, and a wiping action as you insert the fuse.? A drop of DeOxit on the blades as you insert the fuse will also help.? If this is a fixed installation and your power supply has some form of overcurrent protection [e.g. crowbar], there may be no need for any fuses in the power cable. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/25/2020 9:01 AM, Chuck Chandler wrote: > Here's an update. > > I replaced the power cable running from the powerstrip with a 3-foot length > with glass fuse holders in each leg. I also adjusted the power supply to > 14.50V at rest. The K3S now shows 14.2V at rest. At 100W TX the K3S shows > 13.2V, so a 1 volt drop. Way too much. > > The power supply voltage measured at the terminals drops from 14.50 to > 14.44 for full power TX. This seems too much, I had read the drop should > be no more than 0.01V and this is 0.06V. > > So, suspecting the in line fuse holders I made up another cable with dual > blade-fuse holders, which was worse. TX voltage on the K3S display dropped > to 12.9V. > > I'm suspecting my power supply is to blame - it's a TenTec 963, a > re-branded Astron SS-30. Alternatively, I have another commercial power > cable with fuse holders I can cut down and try. > > Many thanks for all the help both here on the reflector and the direct > emails from several fellows, and to Rich VE3KI for the on-air tests this > morning! > > 73 de Chuck, WS1L > From augie.hansen at comcast.net Sat Apr 25 14:37:38 2020 From: augie.hansen at comcast.net (Augie "Gus" Hansen) Date: Sat, 25 Apr 2020 12:37:38 -0600 Subject: [Elecraft] Power supply V drop - was poor CW on K3S In-Reply-To: <7c9ca85e-f064-c501-2f73-9d22f52bc439@foothill.net> References: <7c9ca85e-f064-c501-2f73-9d22f52bc439@foothill.net> Message-ID: <19c00811-e4ca-40e4-b85e-b6868a8ace0e@comcast.net> On 4/25/2020 12:19 PM, Fred Jensen wrote: > ... If this is a fixed installation and your power supply has some > form of overcurrent protection [e.g. crowbar], there may be no need > for any fuses in the power cable. A crowbar circuit will short the output of the PS to prevent an over-voltage event from damaging the equipment being powered. A fuse or fast acting breaker is used to guard against over-current events. Gus Hansen KB0YH From donovanf at starpower.net Sat Apr 25 14:47:12 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Sat, 25 Apr 2020 14:47:12 -0400 (EDT) Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <8c661f24-db1e-f5a8-4715-cda919f9d2b2@comcast.net> Message-ID: <1301484298.2528825.1587840432143.JavaMail.root@starpower.net> Hi Pete, The K3 100 watt power amplifier includes a 25 amp circuit breaker on the rear panel of your radio. The rest of the K3 electronics is protected by an internal 5 amp self resetting fuse. There's absolutely no need for external fuses, except in a mobile installation where external fuses are required in both the positive and negative power leads to avoid a possibly disastrous automotive fire. 73 Frank W3LPL ----- Original Message ----- From: "N4ZR" To: "Martin Sole" , elecraft at mailman.qth.net Sent: Saturday, April 25, 2020 4:54:37 PM Subject: Re: [Elecraft] K3S poor CW keying further investigation Thanks, Martin - I take it all back - my radio drops the voltage down to 11.0 volts at 100 watts key down. I'm really surprised, because I figured that the breakers in the 4005i wouldn't have so much drop.I'll have to figure out how best to siamese my power supply output so that it goes both to the RigRunner and directly to the radio. That'll leave the power supply's fusing as the only protection for the radio, but I guess that's OK. 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 4/25/2020 12:24 PM, Martin Sole wrote: > DISP and rotate vfo B for desired measurement option. > > Martin, HS0ZED > > > > On 25/04/2020 23:19, N4ZR wrote: >> That's right - my focus was (perhaps too narrowly) on the behavior of >> the power supply under load, not on losses in the system. Now if >> someone can just tell me how to read the voltage at the transceiver - >> I know there's a menu setting somewhere but my radio is fairly early >> and the manual doesn't say. >> >> 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: >>> I did notice that the post mentioned that his power supply dipped in >>> voltage but as for preventing issues due to low voltage, it's not >>> your voltmeter on the power supply that is the proper indicator. It >>> is the voltage on the input to the K3 that you should be noting. >>> It's available on the menu and displays in the VFO B area on the >>> screen. >>> >>> Jack BMW Motorcycles >>> Chuck KE9UW >>> c-hawley at illinois.edu >>> >>> Sent from my iPad >>> >>>> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >>>> >>>> For whatever it may be worth, my K3 is run through a West Mountain >>>> RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even >>>> flicker when I go key-down at 100 watts. >>>> >>>> I'm wondering if a 25-amp-rated supply (perhaps a little >>>> optimistic) might be to blame. My K3 draws 20.2 amps at 100 watts >>>> key down. >>>> >>>> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>>>> I had been using a power pole strip to power everything. After >>>>> seeing some >>>>> discussion on this topic some time ago I found that in the string >>>>> of 3 >>>>> power pole connections in my setup at the time I was seeing around >>>>> a 1 volt >>>>> drop in the voltage on the K3 metering between receive and 100 watts >>>>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>>>> directly to the supply and the voltage drop was less than 0.25 >>>>> volts. That >>>>> is the way my rigs and VHF/UHF amps will be connected from now on >>>>> with only >>>>> a fuse inline. The low current stuff will stay on the power pole >>>>> strip >>>>> where they do just fine lighting up lights and stuff. >>>>> >>>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder >>>>>> wrote: >>>>>> >>>>>> Bob, >>>>>> >>>>>> Is it safe to run my K2 using Anderson Power Pole connections, >>>>>> and/or >>>>>> RigRunner equipment? >>>>>> >>>>>> For my info, what is the reason for NOT using them? >>>>>> >>>>>> I?m rewiring, and I want to do it right! >>>>>> >>>>>> Gunny, KE0PVQ >>>>>> >>>>>> Sent from Mail for >>>>>> Windows 10 >>>>>> >>>>>> From: Gmail >>>>>> Sent: Saturday, April 25, 2020 9:03 AM >>>>>> To: Bob McGraw K4TAX >>>>>> Cc: Elecraft at mailman.qth.net >>>>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>>>> >>>>>> Nuts, just measure the drop between radio and power supply see if >>>>>> it is >>>>>> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out >>>>>> of supply. >>>>>> Ray >>>>>> W8LYJ >>>>>> >>>>>> Sent from my iPad >>>>>> >>>>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX >>>>>>> wrote: >>>>>>> >>>>>>> As to the RigRunner power pole strip.........PUT IT IN THE >>>>>>> TRASH where >>>>>> it belongs. NEVER NEVER NEVER use a power distribution strip >>>>>> to power a >>>>>> 100 watt radio. ALWAYS connect the radio direct to the power >>>>>> supply >>>>>> terminals. NO exceptions! >>>>>>> 73 >>>>>>> >>>>>>> Bob, K4TAX >>>>>>> >>>>>>> >>>>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>>>> After more checking, I suspect the internal 100W amp is the common >>>>>> factor >>>>>>>> in the poor keying characteristics I'm seeing and hearing about >>>>>>>> from my >>>>>>>> rig. I am trying to determine if my power supply is doing it's >>>>>>>> job. >>>>>>>> >>>>>>>> I'm using a TenTec 963 switching supply rated at 25A >>>>>>>> continuous. At >>>>>> rest >>>>>>>> the K3S panel display shows 13.6V, with full power key down it >>>>>>>> dips to >>>>>> 11.5 >>>>>>>> or so. This seems like a lot. I'm running the power cable thru a >>>>>>>> RigRunner Powerpole strip. If I can dig out another power >>>>>>>> supply from >>>>>> the >>>>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>>>> >>>>>>>> Is 11.5V at key down enough to cause the slow rise time being >>>>>>>> reported? >>>>>>>> >>>>>>>> 73 de Chuck, WS1L >>>>>>>> >>>>>>> ______________________________________________________________ >>>>>>> Elecraft mailing list >>>>>>> Home: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>> >>>>>>> Help: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>> >>>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>>> >>>>>>> This list hosted by: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>> >>>>>>> Please help support this email list: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>>> >>>>>>> Message delivered to anyone1545 at gmail.com >>>>>> ______________________________________________________________ >>>>>> Elecraft mailing list >>>>>> Home: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>> >>>>>> Help: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>> >>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>> >>>>>> This list hosted by: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>> >>>>>> Please help support this email list: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 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 hs0zed 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 n4zr 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 donovanf at starpower.net From plascell at gmail.com Sat Apr 25 15:00:21 2020 From: plascell at gmail.com (Pete Lascell) Date: Sat, 25 Apr 2020 15:00:21 -0400 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <1301484298.2528825.1587840432143.JavaMail.root@starpower.net> References: <1301484298.2528825.1587840432143.JavaMail.root@starpower.net> Message-ID: <1UW7oOOiDi.uCt63q8MSdg@pete-pc> To bad the power supply doesn't have remote voltage sense to regulate at the far end of the 12 volt power cable. Pete W4WWQ ----- Original Message ----- From: To: Sent: 4/25/2020 2:47:12 PM Subject: Re: [Elecraft] K3S poor CW keying further investigation ________________________________________________________________________________ Hi Pete, The K3 100 watt power amplifier includes a 25 amp circuit breaker on the rear panel of your radio. The rest of the K3 electronics is protected by an internal 5 amp self resetting fuse. There's absolutely no need for external fuses, except in a mobile installation where external fuses are required in both the positive and negative power leads to avoid a possibly disastrous automotive fire. 73 Frank W3LPL ----- Original Message ----- From: "N4ZR" To: "Martin Sole" , elecraft at mailman.qth.net Sent: Saturday, April 25, 2020 4:54:37 PM Subject: Re: [Elecraft] K3S poor CW keying further investigation Thanks, Martin - I take it all back - my radio drops the voltage down to 11.0 volts at 100 watts key down. I'm really surprised, because I figured that the breakers in the 4005i wouldn't have so much drop.I'll have to figure out how best to siamese my power supply output so that it goes both to the RigRunner and directly to the radio. That'll leave the power supply's fusing as the only protection for the radio, but I guess that's OK. 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 4/25/2020 12:24 PM, Martin Sole wrote: > DISP and rotate vfo B for desired measurement option. > > Martin, HS0ZED > > > > On 25/04/2020 23:19, N4ZR wrote: >> That's right - my focus was (perhaps too narrowly) on the behavior of >> the power supply under load, not on losses in the system. Now if >> someone can just tell me how to read the voltage at the transceiver - >> I know there's a menu setting somewhere but my radio is fairly early >> and the manual doesn't say. >> >> 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: >>> I did notice that the post mentioned that his power supply dipped in >>> voltage but as for preventing issues due to low voltage, it's not >>> your voltmeter on the power supply that is the proper indicator. It >>> is the voltage on the input to the K3 that you should be noting. >>> It's available on the menu and displays in the VFO B area on the >>> screen. >>> >>> Jack BMW Motorcycles >>> Chuck KE9UW >>> c-hawley at illinois.edu >>> >>> Sent from my iPad >>> >>>> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >>>> >>>> For whatever it may be worth, my K3 is run through a West Mountain >>>> RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even >>>> flicker when I go key-down at 100 watts. >>>> >>>> I'm wondering if a 25-amp-rated supply (perhaps a little >>>> optimistic) might be to blame. My K3 draws 20.2 amps at 100 watts >>>> key down. >>>> >>>> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>>>> I had been using a power pole strip to power everything. After >>>>> seeing some >>>>> discussion on this topic some time ago I found that in the string >>>>> of 3 >>>>> power pole connections in my setup at the time I was seeing around >>>>> a 1 volt >>>>> drop in the voltage on the K3 metering between receive and 100 watts >>>>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>>>> directly to the supply and the voltage drop was less than 0.25 >>>>> volts. That >>>>> is the way my rigs and VHF/UHF amps will be connected from now on >>>>> with only >>>>> a fuse inline. The low current stuff will stay on the power pole >>>>> strip >>>>> where they do just fine lighting up lights and stuff. >>>>> >>>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder >>>>>> wrote: >>>>>> >>>>>> Bob, >>>>>> >>>>>> Is it safe to run my K2 using Anderson Power Pole connections, >>>>>> and/or >>>>>> RigRunner equipment? >>>>>> >>>>>> For my info, what is the reason for NOT using them? >>>>>> >>>>>> I?m rewiring, and I want to do it right! >>>>>> >>>>>> Gunny, KE0PVQ >>>>>> >>>>>> Sent from Mail for >>>>>> Windows 10 >>>>>> >>>>>> From: Gmail >>>>>> Sent: Saturday, April 25, 2020 9:03 AM >>>>>> To: Bob McGraw K4TAX >>>>>> Cc: Elecraft at mailman.qth.net >>>>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>>>> >>>>>> Nuts, just measure the drop between radio and power supply see if >>>>>> it is >>>>>> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out >>>>>> of supply. >>>>>> Ray >>>>>> W8LYJ >>>>>> >>>>>> Sent from my iPad >>>>>> >>>>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX >>>>>>> wrote: >>>>>>> >>>>>>> As to the RigRunner power pole strip.........PUT IT IN THE >>>>>>> TRASH where >>>>>> it belongs. NEVER NEVER NEVER use a power distribution strip >>>>>> to power a >>>>>> 100 watt radio. ALWAYS connect the radio direct to the power >>>>>> supply >>>>>> terminals. NO exceptions! >>>>>>> 73 >>>>>>> >>>>>>> Bob, K4TAX >>>>>>> >>>>>>> >>>>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>>>> After more checking, I suspect the internal 100W amp is the common >>>>>> factor >>>>>>>> in the poor keying characteristics I'm seeing and hearing about >>>>>>>> from my >>>>>>>> rig. I am trying to determine if my power supply is doing it's >>>>>>>> job. >>>>>>>> >>>>>>>> I'm using a TenTec 963 switching supply rated at 25A >>>>>>>> continuous. At >>>>>> rest >>>>>>>> the K3S panel display shows 13.6V, with full power key down it >>>>>>>> dips to >>>>>> 11.5 >>>>>>>> or so. This seems like a lot. I'm running the power cable thru a >>>>>>>> RigRunner Powerpole strip. If I can dig out another power >>>>>>>> supply from >>>>>> the >>>>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>>>> >>>>>>>> Is 11.5V at key down enough to cause the slow rise time being >>>>>>>> reported? >>>>>>>> >>>>>>>> 73 de Chuck, WS1L >>>>>>>> >>>>>>> ______________________________________________________________ >>>>>>> Elecraft mailing list >>>>>>> Home: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>> >>>>>>> Help: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>> >>>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>>> >>>>>>> This list hosted by: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>> >>>>>>> Please help support this email list: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>>> >>>>>>> Message delivered to anyone1545 at gmail.com >>>>>> ______________________________________________________________ >>>>>> Elecraft mailing list >>>>>> Home: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>> >>>>>> Help: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>> >>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>> >>>>>> This list hosted by: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>> >>>>>> Please help support this email list: >>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 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 hs0zed 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 n4zr 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 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 plascell at gmail.com From kl7uw at acsalaska.net Sat Apr 25 15:02:44 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Sat, 25 Apr 2020 11:02:44 -0800 Subject: [Elecraft] K3S poor CW keying further investigation Message-ID: <202004251903.03PJ35g7029828@mail40c28.carrierzone.com> Just an observation regarding Don's comment: Last week I decided to do my radio shack reorganization (complete relocation of things) and one result is the main 12v line from my station Astron 50M PS, which is welding wire (no.6 awg?), to my main distribution strip was shortened from about 16 to 6-feet. Resulting with 110w output on 2m FM vs 90w previous (guessing due to better voltage and/or lower coax loss). One of the reasons for rearranging the station was to shorten cabling. E.g. I eliminated a 20-foot runs of LMR-600 from both my 6m 1000w PA & 2m 1500w PA. 240vac line is about 12-foot longer to my 50v PS for the amps. I don't expect to see much voltage sag with a load of 12A. I only saw 1-volt sag in the original location. Many of my 12v equipment power lines will also be shortened. win-win! 73, Ed - KL7UW 630m to 3cm Date: Sat, 25 Apr 2020 11:42:35 -0400 From: Don Wilhelm To: Ron Manfredi , elecraft at mailman.qth.net Subject: Re: [Elecraft] K3S poor CW keying further investigation Message-ID: Content-Type: text/plain; charset=utf-8; format=flowed Solder each power supply lead to a short length of #10 wire. Insulate the connection well. 73, Don W3FPR 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From c-hawley at illinois.edu Sat Apr 25 15:05:50 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sat, 25 Apr 2020 19:05:50 +0000 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <8c661f24-db1e-f5a8-4715-cda919f9d2b2@comcast.net> References: <78efca5d-4c21-01d0-eadb-eeefe0b75441@comcast.net> <7D4291CD-AE7B-4977-949C-D7814950C6E6@illinois.edu> <13506111-e55c-358d-4f8e-554c31bfc479@comcast.net> <70831233-4c14-cc0b-bf6f-60406f6e9984@gmail.com>, <8c661f24-db1e-f5a8-4715-cda919f9d2b2@comcast.net> Message-ID: <87488B96-97D3-40C9-A0D6-386033BA569F@illinois.edu> I bought another one of those Samsung supplies just for the K3S. Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Apr 25, 2020, at 11:55 AM, N4ZR wrote: > > ?Thanks, Martin - I take it all back - my radio drops the voltage down to 11.0 volts at 100 watts key down. I'm really surprised, because I figured that the breakers in the 4005i wouldn't have so much drop.I'll have to figure out how best to siamese my power supply output so that it goes both to the RigRunner and directly to the radio. That'll leave the power supply's fusing as the only protection for the radio, but I guess that's OK. > > 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 4/25/2020 12:24 PM, Martin Sole wrote: >> DISP and rotate vfo B for desired measurement option. >> >> Martin, HS0ZED >> >> >> >>> On 25/04/2020 23:19, N4ZR wrote: >>> That's right - my focus was (perhaps too narrowly) on the behavior of the power supply under load, not on losses in the system. Now if someone can just tell me how to read the voltage at the transceiver - I know there's a menu setting somewhere but my radio is fairly early and the manual doesn't say. >>> >>> 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: >>>> I did notice that the post mentioned that his power supply dipped in voltage but as for preventing issues due to low voltage, it's not your voltmeter on the power supply that is the proper indicator. It is the voltage on the input to the K3 that you should be noting. It's available on the menu and displays in the VFO B area on the screen. >>>> >>>> Jack BMW Motorcycles >>>> Chuck KE9UW >>>> c-hawley at illinois.edu >>>> >>>> Sent from my iPad >>>> >>>>> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >>>>> >>>>> ?For whatever it may be worth, my K3 is run through a West Mountain RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even flicker when I go key-down at 100 watts. >>>>> >>>>> I'm wondering if a 25-amp-rated supply (perhaps a little optimistic) might be to blame. My K3 draws 20.2 amps at 100 watts key down. >>>>> >>>>> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>>>>> I had been using a power pole strip to power everything. After seeing some >>>>>> discussion on this topic some time ago I found that in the string of 3 >>>>>> power pole connections in my setup at the time I was seeing around a 1 volt >>>>>> drop in the voltage on the K3 metering between receive and 100 watts >>>>>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>>>>> directly to the supply and the voltage drop was less than 0.25 volts. That >>>>>> is the way my rigs and VHF/UHF amps will be connected from now on with only >>>>>> a fuse inline. The low current stuff will stay on the power pole strip >>>>>> where they do just fine lighting up lights and stuff. >>>>>> >>>>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder wrote: >>>>>>> >>>>>>> Bob, >>>>>>> >>>>>>> Is it safe to run my K2 using Anderson Power Pole connections, and/or >>>>>>> RigRunner equipment? >>>>>>> >>>>>>> For my info, what is the reason for NOT using them? >>>>>>> >>>>>>> I?m rewiring, and I want to do it right! >>>>>>> >>>>>>> Gunny, KE0PVQ >>>>>>> >>>>>>> Sent from Mail for >>>>>>> Windows 10 >>>>>>> >>>>>>> From: Gmail >>>>>>> Sent: Saturday, April 25, 2020 9:03 AM >>>>>>> To: Bob McGraw K4TAX >>>>>>> Cc: Elecraft at mailman.qth.net >>>>>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>>>>> >>>>>>> Nuts, just measure the drop between radio and power supply see if it is >>>>>>> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. >>>>>>> Ray >>>>>>> W8LYJ >>>>>>> >>>>>>> Sent from my iPad >>>>>>> >>>>>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: >>>>>>>> >>>>>>>> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where >>>>>>> it belongs. NEVER NEVER NEVER use a power distribution strip to power a >>>>>>> 100 watt radio. ALWAYS connect the radio direct to the power supply >>>>>>> terminals. NO exceptions! >>>>>>>> 73 >>>>>>>> >>>>>>>> Bob, K4TAX >>>>>>>> >>>>>>>> >>>>>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>>>>> After more checking, I suspect the internal 100W amp is the common >>>>>>> factor >>>>>>>>> in the poor keying characteristics I'm seeing and hearing about from my >>>>>>>>> rig. I am trying to determine if my power supply is doing it's job. >>>>>>>>> >>>>>>>>> I'm using a TenTec 963 switching supply rated at 25A continuous. At >>>>>>> rest >>>>>>>>> the K3S panel display shows 13.6V, with full power key down it dips to >>>>>>> 11.5 >>>>>>>>> or so. This seems like a lot. I'm running the power cable thru a >>>>>>>>> RigRunner Powerpole strip. If I can dig out another power supply from >>>>>>> the >>>>>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>>>>> >>>>>>>>> Is 11.5V at key down enough to cause the slow rise time being reported? >>>>>>>>> >>>>>>>>> 73 de Chuck, WS1L >>>>>>>>> >>>>>>>> ______________________________________________________________ >>>>>>>> Elecraft mailing list >>>>>>>> Home: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>>>> Help: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>>>> >>>>>>>> This list hosted by: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>>>> Please help support this email list: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>>>>> Message delivered to anyone1545 at gmail.com >>>>>>> ______________________________________________________________ >>>>>>> Elecraft mailing list >>>>>>> Home: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>>> Help: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>>> >>>>>>> This list hosted by: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>>> Please help support this email list: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 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 hs0zed 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 n4zr 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 c-hawley at illinois.edu From c-hawley at illinois.edu Sat Apr 25 15:11:13 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sat, 25 Apr 2020 19:11:13 +0000 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: <1UW7oOOiDi.uCt63q8MSdg@pete-pc> References: <1301484298.2528825.1587840432143.JavaMail.root@starpower.net>, <1UW7oOOiDi.uCt63q8MSdg@pete-pc> Message-ID: Wonder what the time constant is for a remote sense power supply. Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Apr 25, 2020, at 2:00 PM, Pete Lascell wrote: > > ?To bad the power supply doesn't have remote voltage sense to regulate at the far end of the 12 volt power cable. > Pete W4WWQ > > ----- Original Message ----- > From: > To: > Sent: 4/25/2020 2:47:12 PM > Subject: Re: [Elecraft] K3S poor CW keying further investigation > ________________________________________________________________________________ > > Hi Pete, > > > The K3 100 watt power amplifier includes a 25 amp circuit breaker > on the rear panel of your radio. The rest of the K3 electronics is > protected by an internal 5 amp self resetting fuse. > > > There's absolutely no need for external fuses, except in a mobile installation > where external fuses are required in both the positive and negative power > leads to avoid a possibly disastrous automotive fire. > > > 73 > Frank > W3LPL > > ----- Original Message ----- > > From: "N4ZR" > To: "Martin Sole" , elecraft at mailman.qth.net > Sent: Saturday, April 25, 2020 4:54:37 PM > Subject: Re: [Elecraft] K3S poor CW keying further investigation > > Thanks, Martin - I take it all back - my radio drops the voltage down to > 11.0 volts at 100 watts key down. I'm really surprised, because I > figured that the breakers in the 4005i wouldn't have so much drop.I'll > have to figure out how best to siamese my power supply output so that it > goes both to the RigRunner and directly to the radio. That'll leave the > power supply's fusing as the only protection for the radio, but I guess > that's OK. > > 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 4/25/2020 12:24 PM, Martin Sole wrote: >> DISP and rotate vfo B for desired measurement option. >> >> Martin, HS0ZED >> >> >> >>> On 25/04/2020 23:19, N4ZR wrote: >>> That's right - my focus was (perhaps too narrowly) on the behavior of >>> the power supply under load, not on losses in the system. Now if >>> someone can just tell me how to read the voltage at the transceiver - >>> I know there's a menu setting somewhere but my radio is fairly early >>> and the manual doesn't say. >>> >>> 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 4/25/2020 11:25 AM, hawley, charles j jr wrote: >>>> I did notice that the post mentioned that his power supply dipped in >>>> voltage but as for preventing issues due to low voltage, it's not >>>> your voltmeter on the power supply that is the proper indicator. It >>>> is the voltage on the input to the K3 that you should be noting. >>>> It's available on the menu and displays in the VFO B area on the >>>> screen. >>>> >>>> Jack BMW Motorcycles >>>> Chuck KE9UW >>>> c-hawley at illinois.edu >>>> >>>> Sent from my iPad >>>> >>>>> On Apr 25, 2020, at 9:51 AM, N4ZR wrote: >>>>> >>>>> For whatever it may be worth, my K3 is run through a West Mountain >>>>> RigRunner 4005i, and the voltmeter on my SEC 1235M doesn't even >>>>> flicker when I go key-down at 100 watts. >>>>> >>>>> I'm wondering if a 25-amp-rated supply (perhaps a little >>>>> optimistic) might be to blame. My K3 draws 20.2 amps at 100 watts >>>>> key down. >>>>> >>>>> 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 4/25/2020 10:32 AM, Jim Rhodes wrote: >>>>>> I had been using a power pole strip to power everything. After >>>>>> seeing some >>>>>> discussion on this topic some time ago I found that in the string >>>>>> of 3 >>>>>> power pole connections in my setup at the time I was seeing around >>>>>> a 1 volt >>>>>> drop in the voltage on the K3 metering between receive and 100 watts >>>>>> keydown. That voltage drop was confirmed by my VOM so I wired the rig >>>>>> directly to the supply and the voltage drop was less than 0.25 >>>>>> volts. That >>>>>> is the way my rigs and VHF/UHF amps will be connected from now on >>>>>> with only >>>>>> a fuse inline. The low current stuff will stay on the power pole >>>>>> strip >>>>>> where they do just fine lighting up lights and stuff. >>>>>> >>>>>>> On Sat, Apr 25, 2020, 09:16 Don Schroder >>>>>>> wrote: >>>>>>> >>>>>>> Bob, >>>>>>> >>>>>>> Is it safe to run my K2 using Anderson Power Pole connections, >>>>>>> and/or >>>>>>> RigRunner equipment? >>>>>>> >>>>>>> For my info, what is the reason for NOT using them? >>>>>>> >>>>>>> I?m rewiring, and I want to do it right! >>>>>>> >>>>>>> Gunny, KE0PVQ >>>>>>> >>>>>>> Sent from Mail for >>>>>>> Windows 10 >>>>>>> >>>>>>> From: Gmail >>>>>>> Sent: Saturday, April 25, 2020 9:03 AM >>>>>>> To: Bob McGraw K4TAX >>>>>>> Cc: Elecraft at mailman.qth.net >>>>>>> Subject: Re: [Elecraft] K3S poor CW keying further investigation >>>>>>> >>>>>>> Nuts, just measure the drop between radio and power supply see if >>>>>>> it is >>>>>>> reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out >>>>>>> of supply. >>>>>>> Ray >>>>>>> W8LYJ >>>>>>> >>>>>>> Sent from my iPad >>>>>>> >>>>>>>> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX >>>>>>>> wrote: >>>>>>>> >>>>>>>> As to the RigRunner power pole strip.........PUT IT IN THE >>>>>>>> TRASH where >>>>>>> it belongs. NEVER NEVER NEVER use a power distribution strip >>>>>>> to power a >>>>>>> 100 watt radio. ALWAYS connect the radio direct to the power >>>>>>> supply >>>>>>> terminals. NO exceptions! >>>>>>>> 73 >>>>>>>> >>>>>>>> Bob, K4TAX >>>>>>>> >>>>>>>> >>>>>>>>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>>>>>>>> After more checking, I suspect the internal 100W amp is the common >>>>>>> factor >>>>>>>>> in the poor keying characteristics I'm seeing and hearing about >>>>>>>>> from my >>>>>>>>> rig. I am trying to determine if my power supply is doing it's >>>>>>>>> job. >>>>>>>>> >>>>>>>>> I'm using a TenTec 963 switching supply rated at 25A >>>>>>>>> continuous. At >>>>>>> rest >>>>>>>>> the K3S panel display shows 13.6V, with full power key down it >>>>>>>>> dips to >>>>>>> 11.5 >>>>>>>>> or so. This seems like a lot. I'm running the power cable thru a >>>>>>>>> RigRunner Powerpole strip. If I can dig out another power >>>>>>>>> supply from >>>>>>> the >>>>>>>>> packed boxes I can wire the K3S directly to the supply. >>>>>>>>> >>>>>>>>> Is 11.5V at key down enough to cause the slow rise time being >>>>>>>>> reported? >>>>>>>>> >>>>>>>>> 73 de Chuck, WS1L >>>>>>>>> >>>>>>>> ______________________________________________________________ >>>>>>>> Elecraft mailing list >>>>>>>> Home: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>>> >>>>>>>> Help: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>>> >>>>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>>>> >>>>>>>> This list hosted by: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>>> >>>>>>>> Please help support this email list: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >>>>>>> >>>>>>>> Message delivered to anyone1545 at gmail.com >>>>>>> ______________________________________________________________ >>>>>>> Elecraft mailing list >>>>>>> Home: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >>>>>>> >>>>>>> Help: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >>>>>>> >>>>>>> Post: mailto:Elecraft at mailman.qth.net >>>>>>> >>>>>>> This list hosted by: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >>>>>>> >>>>>>> Please help support this email list: >>>>>>> https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 jimk0xu 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 n4zr 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 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 hs0zed 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 n4zr 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 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 plascell 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 k2vco.vic at gmail.com Sat Apr 25 15:56:51 2020 From: k2vco.vic at gmail.com (Victor Rosenthal) Date: Sat, 25 Apr 2020 22:56:51 +0300 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: Power poles are fine, if they are installed according to directions. Rig runners are OK for accessories and QRP rigs, but if your K2 has the amplifier it should be connected directly to the power supply. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 25/04/2020 17:15, Don Schroder wrote: > Bob, > > Is it safe to run my K2 using Anderson Power Pole connections, and/or RigRunner equipment? > > For my info, what is the reason for NOT using them? > > I?m rewiring, and I want to do it right! > > Gunny, KE0PVQ > > Sent from Mail for Windows 10 > > From: Gmail > Sent: Saturday, April 25, 2020 9:03 AM > To: Bob McGraw K4TAX > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] K3S poor CW keying further investigation > > Nuts, just measure the drop between radio and power supply see if it is reasonable. Mine is 0.25 volts when transmitting. I run 14.0 out of supply. > Ray > W8LYJ > > Sent from my iPad > >> On Apr 25, 2020, at 07:48, Bob McGraw K4TAX wrote: >> >> ?As to the RigRunner power pole strip.........PUT IT IN THE TRASH where it belongs. NEVER NEVER NEVER use a power distribution strip to power a 100 watt radio. ALWAYS connect the radio direct to the power supply terminals. NO exceptions! >> >> 73 >> >> Bob, K4TAX >> >> >>> On 4/25/2020 7:13 AM, Chuck Chandler wrote: >>> After more checking, I suspect the internal 100W amp is the common factor >>> in the poor keying characteristics I'm seeing and hearing about from my >>> rig. I am trying to determine if my power supply is doing it's job. >>> >>> I'm using a TenTec 963 switching supply rated at 25A continuous. At rest >>> the K3S panel display shows 13.6V, with full power key down it dips to 11.5 >>> or so. This seems like a lot. I'm running the power cable thru a >>> RigRunner Powerpole strip. If I can dig out another power supply from the >>> packed boxes I can wire the K3S directly to the supply. >>> >>> Is 11.5V at key down enough to cause the slow rise time being reported? >>> >>> 73 de Chuck, WS1L >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 >> Help: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 >> Please help support this email list: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%3D&reserved=0 >> Message delivered to anyone1545 at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmailman%2Flistinfo%2Felecraft&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=ungsv%2Fp%2BttMdFv1pen3cIlx6vdo6lgKCjXn4vvBnIgI%3D&reserved=0 > Help: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fmailman.qth.net%2Fmmfaq.htm&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=FSSRNX8wMACqNS%2BQ1XwUQPLzjJH3fCS8HnUiSFvElgk%3D&reserved=0 > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2F&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=UUAA8WvEIp3eK5GZeXhlS1iw3IbbbjccJYX9thNdwmo%3D&reserved=0 > Please help support this email list: https://eur04.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.qsl.net%2Fdonate.html&data=02%7C01%7C%7C851d0737e47443117ae408d7e9216b51%7C84df9e7fe9f640afb435aaaaaaaaaaaa%7C1%7C0%7C637234202046704357&sdata=El%2B%2B%2FjuWPWWAcDHpBWYkGsrqtVtvC10pTrCu8QLCTrQ%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 k2vco.vic at gmail.com > From billamader at gmail.com Sat Apr 25 21:27:53 2020 From: billamader at gmail.com (K8TE) Date: Sat, 25 Apr 2020 18:27:53 -0700 (MST) Subject: [Elecraft] Power supply V drop - was poor CW on K3S In-Reply-To: <02684F48-E092-4F2A-8CDA-346EB1E0A1AD@gmail.com> References: <02684F48-E092-4F2A-8CDA-346EB1E0A1AD@gmail.com> Message-ID: <1587864473511-0.post@n2.nabble.com> This is a huge misperception that is very dangerous! If the power supply (PSU) doesn't have an in-line fuse on the 12VDC, then you're taking a grave chance should a short occur in the cable between the PSU and radio. Ask folks who have set their cars on fire. Like a battery, there should be a fuse at the PSU to open should the 12VDC supply lead short. Some will whine about Voltage drop, but safety is far more important to me. The K3 internal meter will indicate the Voltage at the rear APP. 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From lee.buller at gmail.com Sat Apr 25 22:50:04 2020 From: lee.buller at gmail.com (Leroy Buller) Date: Sat, 25 Apr 2020 21:50:04 -0500 Subject: [Elecraft] K3S poor CW keying further investigation In-Reply-To: References: Message-ID: Chuck, I am late to this discussion so I might be saying things that already been said. I found the same issue. Voltage down to 11.5 volts on any ps I used. So, I found the issue was power pole connectors that were to light. Look for power pole connectors that handle 30 amps or so. Power poles come in different amperage with the same shell. Don't get fooled with that. I did. Then I limited the cable to 24 inches. #10 wire and higher current power poles. Voltage dropped fro. 13.8 to 13.1 at 100 watts . Somebody said that DC systems act significantly to resistance. Lower the resistance to the smallest number is what I tried to do. Some ps have funky connectors o. The back, and might have to jigger those to bolts and nuts. I opted to use sleeves crimped on the end of the wire, soldered, and then stuffed in the connector. The set screws were replace with machine bolts and tighten but you cannot over tighten because the threads might strip. Lee K0WA On Sat, Apr 25, 2020, 7:14 AM Chuck Chandler wrote: > After more checking, I suspect the internal 100W amp is the common factor > in the poor keying characteristics I'm seeing and hearing about from my > rig. I am trying to determine if my power supply is doing it's job. > > I'm using a TenTec 963 switching supply rated at 25A continuous. At rest > the K3S panel display shows 13.6V, with full power key down it dips to 11.5 > or so. This seems like a lot. I'm running the power cable thru a > RigRunner Powerpole strip. If I can dig out another power supply from the > packed boxes I can wire the K3S directly to the supply. > > Is 11.5V at key down enough to cause the slow rise time being reported? > > 73 de Chuck, WS1L > > -- > > > =================== > Chuck Chandler > chandlerusm 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 lee.buller at gmail.com > From rmcgraw at blomand.net Sat Apr 25 23:21:30 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sat, 25 Apr 2020 22:21:30 -0500 Subject: [Elecraft] Power Supplies and Voltage drop In-Reply-To: References: Message-ID: <1f46e509-5f10-3056-4aa1-d7248584e4fb@blomand.net> {I changed the topic for good reason.}??? Was " K3S poor CW keying further investigation" Lee brings up a good point with regard to power supply terminals. If you have one of those power supplies that have the terminals with a set screw in the side, you are limited to the number or wires or wire size which can be correctly inserted. Here is what I did to remedy the situation.??? I obtained two 10-32 x 2" brass screws from the hardware store.? I got 4 nuts, 2 for each screw, 4 flat washers, 2 for each screw and two wing nuts.?? I then cut the head off of each screw and filed a flat spot about 1/2 " long and deep enough to removed the threads. This modified screw was then inserted into the power supply terminal so that the flat spot aligned with the set screw. Tighten the set screw.? Then run two of the nuts on the protruding screw, just up to the power supply connector, but not tight against it,? and the second nut against the first to form a jam-nut.? Add a flat washer, add all the ring terminals you wish, and then a flat washer and finally the wing nut.?? Do the same for the other terminal.?? Now you have plenty of stud length and have not actually modified your power supply.? Some fear making modifications for fear of loosing warranty coverage. As a bonus, should you desire to remove the power supply, loosen the set screws on the power supply connector and pull out the entire bolt/stud assembly, ring terminals and wires, leaving them attached.?? Only one set screw to loosen removes the entire assembly.? Now how neat is that? 73 Bob, K4TAX On 4/25/2020 9:50 PM, Leroy Buller wrote: > Chuck, I am late to this discussion so I might be saying things that > already been said. I found the same issue. Voltage down to 11.5 volts on > any ps I used. So, I found the issue was power pole connectors that were > to light. Look for power pole connectors that handle 30 amps or so. Power > poles come in different amperage with the same shell. Don't get fooled > with that. I did. > > Then I limited the cable to 24 inches. #10 wire and higher current power > poles. Voltage dropped fro. 13.8 to 13.1 at 100 watts . > > Somebody said that DC systems act significantly to resistance. Lower the > resistance to the smallest number is what I tried to do. > > Some ps have funky connectors o. The back, and might have to jigger those > to bolts and nuts. I opted to use sleeves crimped on the end of the wire, > soldered, and then stuffed in the connector. The set screws were replace > with machine bolts and tighten but you cannot over tighten because the > threads might strip. > > > Lee K0WA > > O From kevinr at coho.net Sat Apr 25 23:52:16 2020 From: kevinr at coho.net (kevinr) Date: Sat, 25 Apr 2020 20:52:16 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <463bb3ee-8997-fb61-03f2-e8a13462ff10@coho.net> Good Evening, ?? I hiked along the southern edge of my property today.? Much of the alder that had blown down in 2007 has crumbled into soil.? I found it easier to traverse as did a number of elk.? They were cutting across from the intermittent stream to get to the canyon on the other side.? After the thinning there's not much for them to eat yet, they're just passing through for now.? Once I got to near the middle I found a cross path leading to the marsh east of here. ?? I checked forty meters just after sunset.? Some activity from 2 land and then from someone in 6 calling a 7.? It may be time to move the net times one hour or more later.? Comments and recommendations would be nice. ?? I have also been thinking of trying something on a mid-week evening.? On forty or eighty meters.? Kind of an open meeting area for discussions and contacts.? Not a directed net but some means of passing control around would be good.? It would be nice to have something for the SSB, digital, RTTY, and SSTV folks as well as those of us who use CW.? A Wednesday or Thursday night at or near the watering holes for the various modes.? A round robin net where control passes from one op to the next with the last person calling CQ to find the next victim.? Pass control around the circle a few times until all questions have been asked and answered.? Once again comments and recommendations are requested. 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 n4zr at comcast.net Sun Apr 26 10:46:21 2020 From: n4zr at comcast.net (N4ZR) Date: Sun, 26 Apr 2020 10:46:21 -0400 Subject: [Elecraft] Voltage drop in DX Power to K3 Message-ID: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> I've had an e-mail exchange with West Mountain Radio.? Measured the voltage drop inside the 4005i at only .08 volts at 100 watts key down.? My power cable from the 4500i to the K3 measures 0.3 ohms on each conductor, which at 20 amps should only yield a 1.2 volt drop, right?? I don't know where the other volt plus of drop is coming from.? The cable is 40 inches long, and only minor shortening is possible.? It is about the largest wire that will fit in the Powerpoles on both the K3 and the 4005i. Suggestions welcome -- 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 david.n5dch at gmail.com Sun Apr 26 11:08:44 2020 From: david.n5dch at gmail.com (David Herring) Date: Sun, 26 Apr 2020 09:08:44 -0600 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> Message-ID: <5DD3A53E-9AA3-4933-BECA-8EE00EB6707C@gmail.com> I?m late in coming to this thread, so sorry if I missed the answer to this question, but what is the voltage drop between the power supply and the 4005i? 73, David N5DCH > On Apr 26, 2020, at 8:46 AM, N4ZR wrote: > > I've had an e-mail exchange with West Mountain Radio. Measured the voltage drop inside the 4005i at only .08 volts at 100 watts key down. My power cable from the 4500i to the K3 measures 0.3 ohms on each conductor, which at 20 amps should only yield a 1.2 volt drop, right? I don't know where the other volt plus of drop is coming from. The cable is 40 inches long, and only minor shortening is possible. It is about the largest wire that will fit in the Powerpoles on both the K3 and the 4005i. > > Suggestions welcome > > -- > 73, Pete N4ZR > Check out the Reverse Beacon Network > at , now > spotting RTTY activity worldwide. > For spots, please use your favorite > "retail" DX cluster. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 lee.buller at gmail.com Sun Apr 26 11:53:28 2020 From: lee.buller at gmail.com (Leroy Buller) Date: Sun, 26 Apr 2020 10:53:28 -0500 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> Message-ID: 40 inches of power cable. In my experiences, that could be an issue depending on the gauge of the wire. I used a long cable 12 gauge and had issues. Went to 24 inches number 10 gauge and voltage drop significantly improved. The resustace does not have to be large to cause a voltage drop Lee On Sun, Apr 26, 2020, 9:47 AM N4ZR wrote: > I've had an e-mail exchange with West Mountain Radio. Measured the > voltage drop inside the 4005i at only .08 volts at 100 watts key down. > My power cable from the 4500i to the K3 measures 0.3 ohms on each > conductor, which at 20 amps should only yield a 1.2 volt drop, right? I > don't know where the other volt plus of drop is coming from. The cable > is 40 inches long, and only minor shortening is possible. It is about > the largest wire that will fit in the Powerpoles on both the K3 and the > 4005i. > > Suggestions welcome > > -- > 73, Pete N4ZR > Check out the Reverse Beacon Network > at , now > spotting RTTY activity worldwide. > For spots, please use your favorite > "retail" DX cluster. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lee.buller at gmail.com From rmcgraw at blomand.net Sun Apr 26 12:11:35 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 26 Apr 2020 11:11:35 -0500 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> Message-ID: <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> The power cable at 0.03 ohms on each side,? a total of 0.06 ohms resistance.? The 4005i, per his measurements, has 0.08 ohms resistance.?? The power distribution strip contributes more than 50% of the voltage drop.?? Actually more than the power cables. The power cable contributes? 1.2 volts of drop.?? The 4005i contributes an added 1.6 volts of drop for a total of 2.8 volts. The calculation is simple:??? E = I x R????? current multiplied by amps equal voltage. 73 Bob, K4TAX On 4/26/2020 10:53 AM, Leroy Buller wrote: > 40 inches of power cable. In my experiences, that could be an issue > depending on the gauge of the wire. I used a long cable 12 gauge and had > issues. Went to 24 inches number 10 gauge and voltage drop significantly > improved. The resustace does not have to be large to cause a voltage drop > > Lee > > On Sun, Apr 26, 2020, 9:47 AM N4ZR wrote: > >> I've had an e-mail exchange with West Mountain Radio. Measured the >> voltage drop inside the 4005i at only .08 volts at 100 watts key down. >> My power cable from the 4500i to the K3 measures 0.3 ohms on each >> conductor, which at 20 amps should only yield a 1.2 volt drop, right? I >> don't know where the other volt plus of drop is coming from. The cable >> is 40 inches long, and only minor shortening is possible. It is about >> the largest wire that will fit in the Powerpoles on both the K3 and the >> 4005i. >> >> Suggestions welcome >> >> -- >> 73, Pete N4ZR >> Check out the Reverse Beacon Network >> at , now >> spotting RTTY activity worldwide. >> For spots, please use your favorite >> "retail" DX cluster. >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to lee.buller 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 n4zr at comcast.net Sun Apr 26 12:21:48 2020 From: n4zr at comcast.net (N4ZR) Date: Sun, 26 Apr 2020 12:21:48 -0400 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <5DD3A53E-9AA3-4933-BECA-8EE00EB6707C@gmail.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <5DD3A53E-9AA3-4933-BECA-8EE00EB6707C@gmail.com> Message-ID: Approximately .3 volts with a cable about a foot long. 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 4/26/2020 11:08 AM, David Herring wrote: > I?m late in coming to this thread, so sorry if I missed the answer to this question, but what is the voltage drop between the power supply and the 4005i? > > 73, David N5DCH > >> On Apr 26, 2020, at 8:46 AM, N4ZR wrote: >> >> I've had an e-mail exchange with West Mountain Radio. Measured the voltage drop inside the 4005i at only .08 volts at 100 watts key down. My power cable from the 4500i to the K3 measures 0.3 ohms on each conductor, which at 20 amps should only yield a 1.2 volt drop, right? I don't know where the other volt plus of drop is coming from. The cable is 40 inches long, and only minor shortening is possible. It is about the largest wire that will fit in the Powerpoles on both the K3 and the 4005i. >> >> Suggestions welcome >> >> -- >> 73, Pete N4ZR >> Check out the Reverse Beacon Network >> at , now >> spotting RTTY activity worldwide. >> For spots, please use your favorite >> "retail" DX cluster. >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 vk4tux at gmail.com Sun Apr 26 12:22:35 2020 From: vk4tux at gmail.com (Adrian) Date: Mon, 27 Apr 2020 02:22:35 +1000 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> Message-ID: <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> I got a good chuckle out of that one Bob, happens to me often take 2 > The calculation is simple:??? E = I x R????? current multiplied by resistance equals the voltage. > > The calculation is simple:??? E = I x R????? current multiplied by > amps equal voltage. > > 73 > > Bob, K4TAX > > From jackbrindle at me.com Sun Apr 26 12:25:20 2020 From: jackbrindle at me.com (Jack Brindle) Date: Sun, 26 Apr 2020 09:25:20 -0700 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> Message-ID: <47BD50B3-87D8-4622-8C58-20B0D40CFFD9@me.com> There is one more item that has been forgotten. The K3 has an SB530 Schottky diode in the power input circuit between the input fuse and the main 12V bus (but not the 100 watt 12V PA bus). This will account for about a half of a volt drop. If you are using the front panel voltage reading, this must be added into the equation. In other words, the voltage at the power pole is about a half volt higher than the front panel reading. It might be worth while to take a look at the schematics for the K3 - they are available at the Elecraft web site. Now back to the discussion? 73! Jack, W6FB ps. DX Power? > On Apr 26, 2020, at 9:11 AM, Bob McGraw K4TAX wrote: > > The power cable at 0.03 ohms on each side, a total of 0.06 ohms resistance. The 4005i, per his measurements, has 0.08 ohms resistance. The power distribution strip contributes more than 50% of the voltage drop. Actually more than the power cables. > > The power cable contributes 1.2 volts of drop. The 4005i contributes an added 1.6 volts of drop for a total of 2.8 volts. > > The calculation is simple: E = I x R current multiplied by amps equal voltage. > > 73 > > Bob, K4TAX > > > > On 4/26/2020 10:53 AM, Leroy Buller wrote: >> 40 inches of power cable. In my experiences, that could be an issue >> depending on the gauge of the wire. I used a long cable 12 gauge and had >> issues. Went to 24 inches number 10 gauge and voltage drop significantly >> improved. The resustace does not have to be large to cause a voltage drop >> >> Lee >> >> On Sun, Apr 26, 2020, 9:47 AM N4ZR wrote: >> >>> I've had an e-mail exchange with West Mountain Radio. Measured the >>> voltage drop inside the 4005i at only .08 volts at 100 watts key down. >>> My power cable from the 4500i to the K3 measures 0.3 ohms on each >>> conductor, which at 20 amps should only yield a 1.2 volt drop, right? I >>> don't know where the other volt plus of drop is coming from. The cable >>> is 40 inches long, and only minor shortening is possible. It is about >>> the largest wire that will fit in the Powerpoles on both the K3 and the >>> 4005i. >>> >>> Suggestions welcome >>> >>> -- >>> 73, Pete N4ZR >>> Check out the Reverse Beacon Network >>> at , now >>> spotting RTTY activity worldwide. >>> For spots, please use your favorite >>> "retail" DX cluster. >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to lee.buller 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 jackbrindle at me.com From gdanner12 at gmail.com Sun Apr 26 12:28:05 2020 From: gdanner12 at gmail.com (Gmail - George) Date: Sun, 26 Apr 2020 12:28:05 -0400 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <5DD3A53E-9AA3-4933-BECA-8EE00EB6707C@gmail.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <5DD3A53E-9AA3-4933-BECA-8EE00EB6707C@gmail.com> Message-ID: A couple of solutions used in TV Broadcasting, especially in ENG & Satellite mobile units. 1) Use a short jumper from the large conductor the the connector. I solder the 2 wires together (inline) and cover the connection with shrink tubing. This helps when you want flexibility between the large connector and the equipment (think mobile vibration). 2)If the large conductor is stranded then remove strands until it fits the connector. Another solutions would be to keep what you have and remote the power supply sense to the destination. The advantage of this solution is that you have a large voltage swing with a varying load. The disadvantage is the power supply has to be capable of supplying all the current needed at maximum load and the time constant has to be considerable shorter than the load variation time constant. Another disadvantage is that any other equipment on the power supply line will "see" a varying power supply. This solution is used in many different pieces of equipment in broadcasting. 73 George AI4VZ -----Original Message----- From: David Herring Sent: Sunday, April 26, 2020 11:08 AM To: N4ZR Cc: Elecraft List Subject: Re: [Elecraft] Voltage drop in DX Power to K3 I?m late in coming to this thread, so sorry if I missed the answer to this question, but what is the voltage drop between the power supply and the 4005i? 73, David N5DCH > On Apr 26, 2020, at 8:46 AM, N4ZR wrote: > > I've had an e-mail exchange with West Mountain Radio. Measured the > voltage drop inside the 4005i at only .08 volts at 100 watts key down. My > power cable from the 4500i to the K3 measures 0.3 ohms on each conductor, > which at 20 amps should only yield a 1.2 volt drop, right? I don't know > where the other volt plus of drop is coming from. The cable is 40 inches > long, and only minor shortening is possible. It is about the largest wire > that will fit in the Powerpoles on both the K3 and the 4005i. > > Suggestions welcome > > -- > 73, Pete N4ZR > Check out the Reverse Beacon Network > at , now > spotting RTTY activity worldwide. > For spots, please use your favorite > "retail" DX cluster. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 rmcgraw at blomand.net Sun Apr 26 12:32:39 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 26 Apr 2020 11:32:39 -0500 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> Message-ID: Oh well, I need another cup of coffee.??? I'll try to do better proof reading.? Can't blame that one on auto-correct! Cutting to the chase........., measure from the power supply POS terminal to the ACC 12V on the K3 radio.??? That is the total voltage drop in the POS DC path.? Then do the same for the NEG terminal of the power supply to the ground terminal on the radio. That is the voltage drop on the NEG DC path.? Add those two together and one has the total voltage drop.? Now, step by step, isolate where each amount of voltage drop occurs. Anytime over 0.5 volts total voltage drop occurs, something needs attention.?? Thus DC Pos should be less than 0.25 volt drop and DC Neg should be less than 0.25 volts.? For a total of 0.5 volts drop at the radio. 73 Bob, K4TAX On 4/26/2020 11:22 AM, Adrian wrote: > I got a good chuckle out of that one Bob, happens to me often > > > take 2 > > The calculation is simple:??? E = I x R????? current multiplied by > resistance equals the voltage. > > >> >> The calculation is simple:??? E = I x R????? current multiplied by >> amps equal voltage. >> >> 73 >> >> Bob, K4TAX >> >> > From n4zr at comcast.net Sun Apr 26 12:34:54 2020 From: n4zr at comcast.net (N4ZR) Date: Sun, 26 Apr 2020 12:34:54 -0400 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> Message-ID: <6d101974-a04b-25b7-d354-8b876e668833@comcast.net> Aside from? my decimal point problems....? The cable measured 0.3 ohms, with my DMM, but in retrospect, its measurement could not have been correct. However, the measurement on the 4005i is about right, because that was done by comparing the voltages at its input and output, and was at 100 watts key-down. The 4005i's *voltage drop* at 100 watts was 0.08 *volts*, which strikes me as not bad at all. 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 4/26/2020 12:11 PM, Bob McGraw K4TAX wrote: > The power cable at 0.03 ohms on each side,? a total of 0.06 ohms > resistance.? The 4005i, per his measurements, has 0.08 ohms > resistance.?? The power distribution strip contributes more than 50% > of the voltage drop.?? Actually more than the power cables. > > The power cable contributes? 1.2 volts of drop.?? The 4005i > contributes an added 1.6 volts of drop for a total of 2.8 volts. > > The calculation is simple:??? E = I x R????? current multiplied by > amps equal voltage. > > 73 > > Bob, K4TAX > > > > On 4/26/2020 10:53 AM, Leroy Buller wrote: >> 40 inches of power cable.? In my experiences,? that could be an issue >> depending on the gauge of the wire.? I used a long cable 12 gauge and >> had >> issues.? Went to 24 inches number 10 gauge and voltage drop >> significantly >> improved.? The resustace does not have to be large to cause a >> voltage? drop >> >> Lee >> >> On Sun, Apr 26, 2020, 9:47 AM N4ZR wrote: >> >>> I've had an e-mail exchange with West Mountain Radio.? Measured the >>> voltage drop inside the 4005i at only .08 volts at 100 watts key down. >>> My power cable from the 4500i to the K3 measures 0.3 ohms on each >>> conductor, which at 20 amps should only yield a 1.2 volt drop, >>> right?? I >>> don't know where the other volt plus of drop is coming from. The cable >>> is 40 inches long, and only minor shortening is possible.? It is about >>> the largest wire that will fit in the Powerpoles on both the K3 and the >>> 4005i. >>> >>> Suggestions welcome >>> >>> -- >>> 73, Pete N4ZR >>> Check out the Reverse Beacon Network >>> at , now >>> spotting RTTY activity worldwide. >>> For spots, please use your favorite >>> "retail" DX cluster. >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to lee.buller 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 n4zr at comcast.net From rmcgraw at blomand.net Sun Apr 26 12:51:51 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 26 Apr 2020 11:51:51 -0500 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <6d101974-a04b-25b7-d354-8b876e668833@comcast.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <6d101974-a04b-25b7-d354-8b876e668833@comcast.net> Message-ID: <6e7d9c8e-8a13-91c4-8896-a79806a3b622@blomand.net> Pete:? Sorry I read some of your numbers incorrectly.? A cable with 0.3 ohms resistance and 20 amps of current will have a voltage drop of 20 x 0.3 for 6 volts.? This can't be correct. More like 20 x 0.03 for 1.2 volts.?? Still too much. Don't try to measure resistance with a DVM, as point contact and lead resistance will be too great.? Just measure voltage drop across the various components which will be more accurate. That's what is important anyway. 73 Bob, K4TAX On 4/26/2020 11:34 AM, N4ZR wrote: > Aside from? my decimal point problems....? The cable measured 0.3 > ohms, with my DMM, but in retrospect, its measurement could not have > been correct. However, the measurement on the 4005i is about right, > because that was done by comparing the voltages at its input and > output, and was at 100 watts key-down. The 4005i's *voltage drop* at > 100 watts was 0.08 *volts*, which strikes me as not bad at all. > > 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 4/26/2020 12:11 PM, Bob McGraw K4TAX wrote: >> The power cable at 0.03 ohms on each side,? a total of 0.06 ohms >> resistance.? The 4005i, per his measurements, has 0.08 ohms >> resistance.?? The power distribution strip contributes more than 50% >> of the voltage drop.?? Actually more than the power cables. >> >> The power cable contributes? 1.2 volts of drop.?? The 4005i >> contributes an added 1.6 volts of drop for a total of 2.8 volts. >> >> The calculation is simple:??? E = I x R????? current multiplied by >> amps equal voltage. >> >> 73 >> >> Bob, K4TAX >> >> >> >> On 4/26/2020 10:53 AM, Leroy Buller wrote: >>> 40 inches of power cable.? In my experiences,? that could be an issue >>> depending on the gauge of the wire.? I used a long cable 12 gauge >>> and had >>> issues.? Went to 24 inches number 10 gauge and voltage drop >>> significantly >>> improved.? The resustace does not have to be large to cause a >>> voltage? drop >>> >>> Lee >>> >>> On Sun, Apr 26, 2020, 9:47 AM N4ZR wrote: >>> >>>> I've had an e-mail exchange with West Mountain Radio.? Measured the >>>> voltage drop inside the 4005i at only .08 volts at 100 watts key down. >>>> My power cable from the 4500i to the K3 measures 0.3 ohms on each >>>> conductor, which at 20 amps should only yield a 1.2 volt drop, >>>> right?? I >>>> don't know where the other volt plus of drop is coming from. The cable >>>> is 40 inches long, and only minor shortening is possible. It is about >>>> the largest wire that will fit in the Powerpoles on both the K3 and >>>> the >>>> 4005i. >>>> >>>> Suggestions welcome >>>> >>>> -- >>>> 73, Pete N4ZR >>>> Check out the Reverse Beacon Network >>>> at , now >>>> spotting RTTY activity worldwide. >>>> For spots, please use your favorite >>>> "retail" DX cluster. >>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to lee.buller 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 n4zr 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 n4zr at comcast.net Sun Apr 26 13:03:27 2020 From: n4zr at comcast.net (N4ZR) Date: Sun, 26 Apr 2020 13:03:27 -0400 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> Message-ID: <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> Thanks, Bob - I had forgotten about being able to measure at the acc 12v output.? In any case, though, the front-panel display provides a pretty good number.? It says that the RX-only voltage at the K3 is 13.7 volts.? My worst-case at 100 watts key down is 12.6 - I don't know where the 11 volts came from.? As someone suggested, it could be as simple as my having plugged and unplugged the various powerpoles a few times. But here's the real bottom line - depending on band, I only need at most 40 watts to drive my KPA-1500 to full output.? At that level, voltage only drops to 13.1, which is plenty good enough. Thanks everyone for putting up with me - at least, I'm leaving this exercise a little smarter than I went in... 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 4/26/2020 12:32 PM, Bob McGraw K4TAX wrote: > Oh well, I need another cup of coffee.??? I'll try to do better proof > reading.? Can't blame that one on auto-correct! > > Cutting to the chase........., measure from the power supply POS > terminal to the ACC 12V on the K3 radio.??? That is the total voltage > drop in the POS DC path.? Then do the same for the NEG terminal of the > power supply to the ground terminal on the radio. That is the voltage > drop on the NEG DC path.? Add those two together and one has the total > voltage drop.? Now, step by step, isolate where each amount of voltage > drop occurs. > > Anytime over 0.5 volts total voltage drop occurs, something needs > attention.?? Thus DC Pos should be less than 0.25 volt drop and DC Neg > should be less than 0.25 volts.? For a total of 0.5 volts drop at the > radio. > > 73 > > Bob, K4TAX > > > On 4/26/2020 11:22 AM, Adrian wrote: >> I got a good chuckle out of that one Bob, happens to me often >> >> >> take 2 > >> The calculation is simple:??? E = I x R????? current multiplied by >> resistance equals the voltage. >> >> >>> >>> The calculation is simple:??? E = I x R????? current multiplied by >>> amps equal voltage. >>> >>> 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 n4zr at comcast.net From plascell at gmail.com Sun Apr 26 13:18:25 2020 From: plascell at gmail.com (Pete Lascell) Date: Sun, 26 Apr 2020 13:18:25 -0400 Subject: [Elecraft] Voltage drop in DC Power to K3 In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> Message-ID: <1UW7pSqG81.19GLEKGjHXuK@pete-pc> Consider using larger stranded wire. When making connections unravel a few outside strands and cut off so the remaining strands will fit the terminals being used correctly. The smaller (higher resistance) section of cable will be only part of an inch. Heatshrink tubing will cover the unsightly chop job. Depending on the exact stranding configuration of the cable, going from #10 stranded, #8 stranded is 56-64%, and #6 stranded is 37-43% the resistance of the larger #10 cable. If going from #10 with individual strands of #26 wire to #6 cable with individual strands of #36 wire, the resistance can be as little as 35% of the larger #10 cable. Pete W4WWQ ----- Original Message ----- From: Leroy Buller To: N4ZR Cc: Elecraft List Sent: 4/26/2020 11:53:28 AM Subject: Re: [Elecraft] Voltage drop in DX Power to K3 ________________________________________________________________________________ 40 inches of power cable. In my experiences, that could be an issue depending on the gauge of the wire. I used a long cable 12 gauge and had issues. Went to 24 inches number 10 gauge and voltage drop significantly improved. The resustace does not have to be large to cause a voltage drop Lee On Sun, Apr 26, 2020, 9:47 AM N4ZR wrote: > I've had an e-mail exchange with West Mountain Radio. Measured the > voltage drop inside the 4005i at only .08 volts at 100 watts key down. > My power cable from the 4500i to the K3 measures 0.3 ohms on each > conductor, which at 20 amps should only yield a 1.2 volt drop, right? I > don't know where the other volt plus of drop is coming from. The cable > is 40 inches long, and only minor shortening is possible. It is about > the largest wire that will fit in the Powerpoles on both the K3 and the > 4005i. > > Suggestions welcome > > -- > 73, Pete N4ZR > Check out the Reverse Beacon Network > at , now > spotting RTTY activity worldwide. > For spots, please use your favorite > "retail" DX cluster. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lee.buller 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 plascell at gmail.com From anyone1545 at gmail.com Sun Apr 26 13:21:12 2020 From: anyone1545 at gmail.com (Gmail) Date: Sun, 26 Apr 2020 11:21:12 -0600 Subject: [Elecraft] Voltage drop in DC Power to K3 In-Reply-To: <1UW7pSqG81.19GLEKGjHXuK@pete-pc> References: <1UW7pSqG81.19GLEKGjHXuK@pete-pc> Message-ID: <5D02C650-A8A3-4414-BEAA-6BC8F56C7FA0@gmail.com> Or use bigger connectors, like 45 amp power poles. Ray W8LYJ Sent from my iPad > On Apr 26, 2020, at 11:19, Pete Lascell wrote: > > ?Consider using larger stranded wire. When making connections unravel a few outside strands and cut off so the remaining strands will fit the terminals being used correctly. The smaller (higher resistance) section of cable will be only part of an inch. Heatshrink tubing will cover the unsightly chop job. > > Depending on the exact stranding configuration of the cable, going from #10 stranded, #8 stranded is 56-64%, and #6 stranded is 37-43% the resistance of the larger #10 cable. If going from #10 with individual strands of #26 wire to #6 cable with individual strands of #36 wire, the resistance can be as little as 35% of the larger #10 cable. > > Pete W4WWQ > > > ----- Original Message ----- > From: Leroy Buller > To: N4ZR > Cc: Elecraft List > Sent: 4/26/2020 11:53:28 AM > Subject: Re: [Elecraft] Voltage drop in DX Power to K3 > ________________________________________________________________________________ > > 40 inches of power cable. In my experiences, that could be an issue > depending on the gauge of the wire. I used a long cable 12 gauge and had > issues. Went to 24 inches number 10 gauge and voltage drop significantly > improved. The resustace does not have to be large to cause a voltage drop > > Lee > >> On Sun, Apr 26, 2020, 9:47 AM N4ZR wrote: >> >> I've had an e-mail exchange with West Mountain Radio. Measured the >> voltage drop inside the 4005i at only .08 volts at 100 watts key down. >> My power cable from the 4500i to the K3 measures 0.3 ohms on each >> conductor, which at 20 amps should only yield a 1.2 volt drop, right? I >> don't know where the other volt plus of drop is coming from. The cable >> is 40 inches long, and only minor shortening is possible. It is about >> the largest wire that will fit in the Powerpoles on both the K3 and the >> 4005i. >> >> Suggestions welcome >> >> -- >> 73, Pete N4ZR >> Check out the Reverse Beacon Network >> at , now >> spotting RTTY activity worldwide. >> For spots, please use your favorite >> "retail" DX cluster. >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to lee.buller 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 plascell 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 anyone1545 at gmail.com From dave at nk7z.net Sun Apr 26 13:43:03 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 26 Apr 2020 10:43:03 -0700 Subject: [Elecraft] Voltage drop in DC Power to K3 In-Reply-To: <5D02C650-A8A3-4414-BEAA-6BC8F56C7FA0@gmail.com> References: <1UW7pSqG81.19GLEKGjHXuK@pete-pc> <5D02C650-A8A3-4414-BEAA-6BC8F56C7FA0@gmail.com> Message-ID: <9df6df72-519e-705b-4054-416771450623@nk7z.net> Voltage drop the easy way: 1. Press the DISP button on the K3. 2. Adjust VFO B for voltage. 3. Go into transmit at full power. 4. Write down the voltage you see. 5. Meter the power supply. 6. Go into full power transmit. 7. Write down the Power Supply voltage. Subtract the number you got in step 4, form teh number you got in step 7. You have now calculated the total voltage drop across your 12 V power system. If you want to know the individual item drops, replace an item with a jumper, goto step 1. According to WMR, each mating surface adds .0006 ohm on a 35 Amp PP connector. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources From 99sunset at gmail.com Sun Apr 26 16:08:50 2020 From: 99sunset at gmail.com (Steve Hall) Date: Sun, 26 Apr 2020 16:08:50 -0400 Subject: [Elecraft] 40 meter net 4-26-2020 1845Z 7.280 Message-ID: Thanks all for checking in to the Sunday net and those assisting as net control relays. WM6P Steve GA K3s Net Control WB8PKK Ken MA IC7600 K1NW Brian RI K3 KD8ZEI Brandon OH TS-430 K8NU Carl OH K3s NC5G George TX K2/100 WB9JNZ Eric IL K3 K0OMH Tony IA IC7300 NC0JW Jim CO KX3 KO5V Jim NM K2/100 KB9AVO Paul IN K3s NM5C Patrick NM IC746 WW4JF John TN K3s WB4ZAR John NC IC736 KB3OXH Bill WV home brew 10Watts From chandlerusm at gmail.com Sun Apr 26 16:26:43 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Sun, 26 Apr 2020 15:26:43 -0500 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) Message-ID: After several reports that my CW tone sounded less than perfect I've been on a hunt for possible causes. Looking at the TX waveform on my P3 it does look more sausage-shaped than I see in the P3 manual. So far I've determined my power supply was a little low and sagging a little under full power. After changing cabling and adjusting the PS, I now have 14.2V displayed on the K3 at rest, 13.9 to 14.0V at the 25W level used to drive the KPA500, and 13.7 to 13.8V at 100W output. All that now seems as it should be, but the waveform on the P3 is still elongated. My KPA500 on a 240V outlet shows HV of 73.5V at rest, 57.3V with 500W output. This is a little on the low side, and I may move the HV tap to bring it back up above 60V under load. On air testing today with a neighbor I got the report that my CW sounds just fine until the amp is in line. Then it is described as "some kind of artifact... like a bell sound... like a delay." This is consistent with the other report I had been getting of a "ringing, bell-like" note to my CW. This is most apparent at 30 wpm, as I would be running in a contest. So far, all the reports I have received from fellow amateurs have been after a CW Ops weekly contest, during which I usually am running at 30 wpm and 500W output. During rag chews with a bug at 22-25 wpm and 500W nobody has said anything bad about the CW note. The rig, KAT500 tuner and amp are interconnected via two E850463 Aux Interface Cables as shown on page 5 of the KAT500 Manual, Rev. C6 (3/8/2017). CW for contesting is generated by N1MM+ via the K3S USB interface. I have a K1EL Winkeyer on order in case the root cause is the computer... but that elongated waveform remains the most likely factor to resolve. My guess is the root cause of all this, power supply issues resolved for now, is the elongated waveform I see on the P3. My rise time seems to be at least 3 or 4 times longer than what I see in the ARRL product reviews or even in the P3 manual showing an example of a CW waveform. I have submitted a contact form at the Elecraft support web page, but its the weekend and with them all working from home I wouldn't mind the collective wisdom of the group as to any other avenues of investigation. And, many thanks for the help so far! 73 de Chuck, WS1L -- =================== Chuck Chandler chandlerusm at gmail.com =================== From a.durbin at msn.com Sun Apr 26 16:37:49 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 26 Apr 2020 20:37:49 +0000 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) Message-ID: "I got the report that my CW sounds just fine until the amp is in line. Then it is described as "some kind of artifact... like a bell sound... like a delay." This is consistent with the other report I had been getting of a "ringing, bell-like" note to my CW. This is most apparent at 30 wpm, as I would be running in a contest." I'm probably well out of my depth here but could this be caused by incorrectly configured ALC feedback from the KPA500 to the rig? That should be easy to test by simply disconnecting the AUX cables and running the CW test again. 73, Andy, k3wyc From radiok4ia at gmail.com Sun Apr 26 16:40:40 2020 From: radiok4ia at gmail.com (Buck) Date: Sun, 26 Apr 2020 16:40:40 -0400 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) In-Reply-To: References: Message-ID: <8edc096b-6ca0-03d4-8a00-a6afc6944af6@Gmail.com> My HV shows 74 volts resting and 60 key down k4ia, Buck K3s# 11497 Honor Roll 8B DXCC EasyWayHamBooks.com On 4/26/2020 4:26 PM, Chuck Chandler wrote: > After several reports that my CW tone sounded less than perfect I've been > on a hunt for possible causes. Looking at the TX waveform on my P3 it does > look more sausage-shaped than I see in the P3 manual. > > So far I've determined my power supply was a little low and sagging a > little under full power. After changing cabling and adjusting the PS, I > now have 14.2V displayed on the K3 at rest, 13.9 to 14.0V at the 25W level > used to drive the KPA500, and 13.7 to 13.8V at 100W output. All that now > seems as it should be, but the waveform on the P3 is still elongated. > > My KPA500 on a 240V outlet shows HV of 73.5V at rest, 57.3V with 500W > output. This is a little on the low side, and I may move the HV tap to > bring it back up above 60V under load. > > On air testing today with a neighbor I got the report that my CW sounds > just fine until the amp is in line. Then it is described as "some kind of > artifact... like a bell sound... like a delay." This is consistent with > the other report I had been getting of a "ringing, bell-like" note to my > CW. This is most apparent at 30 wpm, as I would be running in a contest. > > So far, all the reports I have received from fellow amateurs have been > after a CW Ops weekly contest, during which I usually am running at 30 wpm > and 500W output. During rag chews with a bug at 22-25 wpm and 500W nobody > has said anything bad about the CW note. > > The rig, KAT500 tuner and amp are interconnected via two E850463 Aux > Interface Cables as shown on page 5 of the KAT500 Manual, Rev. C6 > (3/8/2017). CW for contesting is generated by N1MM+ via the K3S USB > interface. I have a K1EL Winkeyer on order in case the root cause is the > computer... but that elongated waveform remains the most likely factor to > resolve. > > My guess is the root cause of all this, power supply issues resolved for > now, is the elongated waveform I see on the P3. My rise time seems to be > at least 3 or 4 times longer than what I see in the ARRL product reviews or > even in the P3 manual showing an example of a CW waveform. > > I have submitted a contact form at the Elecraft support web page, but its > the weekend and with them all working from home I wouldn't mind the > collective wisdom of the group as to any other avenues of investigation. > > And, many thanks for the help so far! > > 73 de Chuck, WS1L > From jrhallas at optonline.net Sun Apr 26 17:57:08 2020 From: jrhallas at optonline.net (Joel Hallas) Date: Sun, 26 Apr 2020 17:57:08 -0400 Subject: [Elecraft] Voltage drop in power cable In-Reply-To: References: Message-ID: <025f01d61c15$a2360af0$e6a220d0$@net> I have always used a power distribution strip in my system. I don't think I've seen my solution to the drop problem mentioned. While there is a practical limit to the wire size usable in APP connectors, with excess positions on the power strip, multiple cables can be used. I ran two heavy (I forget the wire size) cables from my supply to the strip, thus cutting the cable drop in half on the longest path (my strip was right behind the equipment). No further issues Regards, Joel Hallas, W1ZR Westport, CT From rmcgraw at blomand.net Sun Apr 26 18:03:44 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 26 Apr 2020 17:03:44 -0500 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) In-Reply-To: References: Message-ID: <28a2051d-91f4-708c-3f1b-0dcd4709e0e8@blomand.net> I do use ALC between my KPA500 and my K3S.?? I do find that the ALC setup and calibration is critical for correct operation.? As to the effects of it being set incorrectly, I can't say.?? I do know it must be done for every band and the amp ALC will be displayed on my K3S.?? The amp ALC THR value on my amp runs from 145 to 120 depending on band.?? One value does not work for all bands. 73 Bob, K4TAX On 4/26/2020 3:37 PM, Andy Durbin wrote: > "I got the report that my CW sounds just fine until the amp is in line. Then it is described as "some kind of artifact... like a bell sound... like a delay." This is consistent with the other report I had been getting of a "ringing, bell-like" note to my CW. This is most apparent at 30 wpm, as I would be running in a contest." > > I'm probably well out of my depth here but could this be caused by incorrectly configured ALC feedback from the KPA500 to the rig? That should be easy to test by simply disconnecting the AUX cables and running the CW test again. > > 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 rmcgraw at blomand.net > From jim at audiosystemsgroup.com Sun Apr 26 18:24:13 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 26 Apr 2020 15:24:13 -0700 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> Message-ID: <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> I wouldn't expect useful accuracy from anything but a lab instrument for such low resistances as a few feet of #12. Far better to look up the resistance of copper wire from a wire table. An unknown "black box" like a power strip is not so easy. :) As for the protection diode, that's pretty easy too -- look up the junction voltage for that type of diode, and you're within 0.1 volt of reality. The thing I find baffling (or depressing) here is that we all had to understand Ohm's Law to pass the exam for our license, and it's REAL simple. Take resistance values from a wire table, multiply by the length, then by two for the two conductors, then by the current. I dunno what the exam is like nowadays -- my experience was 1955 with the Novice test and a year later with the General -- but surely there must be something about how diodes work! 73, Jim K9YC From jim at audiosystemsgroup.com Sun Apr 26 18:39:27 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 26 Apr 2020 15:39:27 -0700 Subject: [Elecraft] Voltage drop in DC Power to K3 In-Reply-To: <1UW7pSqG81.19GLEKGjHXuK@pete-pc> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <1UW7pSqG81.19GLEKGjHXuK@pete-pc> Message-ID: On 4/26/2020 10:18 AM, Pete Lascell wrote: > When making connections unravel a few outside strands and cut off so the remaining strands will fit the terminals being used correctly. The smaller (higher resistance) section of cable will be only part of an inch. Heatshrink tubing will cover the unsightly chop job. Yep. And I've also used W1ZR's solution of two of the same size cables in parallel. 73, Jim K9YC From jim at audiosystemsgroup.com Sun Apr 26 18:43:15 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 26 Apr 2020 15:43:15 -0700 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) In-Reply-To: References: Message-ID: On 4/26/2020 1:37 PM, Andy Durbin wrote: > I'm probably well out of my depth here but could this be caused by > incorrectly configured ALC feedback from the KPA500 to the rig? In general, ALC between an amp and a rig is a recipe for clicks and splatter. Most authorities advise against using it. This is not new -- it's in the manual for Ten Tec legal limit amps from the late '70s and for every amp I've owned since. If it is used, it should be set for well above normal output power so that it only kicks in to reduce drive when something breaks in the antenna system or the operator experiences brain cramp and transmits into the wrong antenna. :) And good solid state amps are well enough protected that they do that without ALC. 73, Jim K9YCX From rwnewbould at comcast.net Sun Apr 26 19:32:12 2020 From: rwnewbould at comcast.net (Rich) Date: Sun, 26 Apr 2020 19:32:12 -0400 Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp Message-ID: <8b0e3002-d756-d813-d993-78efc67bfae9@comcast.net> I am interested in finding out from the experts.................... Is it best to use the K3 internal pre-amp or add an external pre-amp to the RX antenna system? Thanks Rich K3RWN From rmcgraw at blomand.net Sun Apr 26 20:12:56 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 26 Apr 2020 19:12:56 -0500 Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp In-Reply-To: <8b0e3002-d756-d813-d993-78efc67bfae9@comcast.net> References: <8b0e3002-d756-d813-d993-78efc67bfae9@comcast.net> Message-ID: <1f744902-13df-2d8d-f732-8bddecae9787@blomand.net> The internal preamp in my K3S does an excellent job on 6 meters.?? If I decided to use an external preamp, it would be located at the antenna feed point with suitable switching and protection. I suppose the question, what bands do you perceive you need a preamp?? And what is your no signal band noise on the bands of concern? 73 Bob, K4TAX On 4/26/2020 6:32 PM, Rich wrote: > I am interested in finding out from the experts.................... > > Is it best to use the K3 internal pre-amp or add an external pre-amp > to the RX antenna system? > > Thanks > > Rich > > K3RWN > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 a.durbin at msn.com Sun Apr 26 20:19:39 2020 From: a.durbin at msn.com (Andy Durbin) Date: Mon, 27 Apr 2020 00:19:39 +0000 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) In-Reply-To: References: Message-ID: "In general, ALC between an amp and a rig is a recipe for clicks and splatter. Most authorities advise against using it. This is not new -- it's in the manual for Ten Tec legal limit amps from the late '70s and for every amp I've owned since." The OP has a KPA500 and K3S interconnect by an Elecraft AUX cable. This means that ALC is connected (Aux cable pin 15) and opens the possibility that it is not configured correctly. What I don't know is whether incorrectly configured ALC could cause the reported problem. I suspect that would depend on the time constant(s) of the ALC loop. 73, Andy, k3wyc From dick at elecraft.com Sun Apr 26 20:35:58 2020 From: dick at elecraft.com (Dick Dievendorff) Date: Sun, 26 Apr 2020 17:35:58 -0700 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) In-Reply-To: References: Message-ID: <000801d61c2b$d21792a0$7646b7e0$@elecraft.com> External ALC is enabled on the K3 and K3S with a menu entry that defaults to OFF. See page 29 of the K3S owner's manual. 73 de Dick, K6KR -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Andy Durbin Sent: Sunday, April 26, 2020 17:20 To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Poor CW note more testing and a question (rather long-ish...) "In general, ALC between an amp and a rig is a recipe for clicks and splatter. Most authorities advise against using it. This is not new -- it's in the manual for Ten Tec legal limit amps from the late '70s and for every amp I've owned since." The OP has a KPA500 and K3S interconnect by an Elecraft AUX cable. This means that ALC is connected (Aux cable pin 15) and opens the possibility that it is not configured correctly. What I don't know is whether incorrectly configured ALC could cause the reported problem. I suspect that would depend on the time constant(s) of the ALC loop. 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 dick at elecraft.com From chandlerusm at gmail.com Sun Apr 26 20:47:26 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Sun, 26 Apr 2020 19:47:26 -0500 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) In-Reply-To: <000801d61c2b$d21792a0$7646b7e0$@elecraft.com> References: <000801d61c2b$d21792a0$7646b7e0$@elecraft.com> Message-ID: My EXT ALC menu is set to the default of OFF t-40. The soft waveform is displayed on the P3 apparently the same shape whether the amp is in use or standby. 73, Chuck, WS1L On Sun, Apr 26, 2020 at 19:36 Dick Dievendorff wrote: > External ALC is enabled on the K3 and K3S with a menu entry that defaults > to > OFF. See page 29 of the K3S owner's manual. > > 73 de Dick, K6KR > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On > Behalf Of Andy Durbin > Sent: Sunday, April 26, 2020 17:20 > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Poor CW note more testing and a question (rather > long-ish...) > > "In general, ALC between an amp and a rig is a recipe for clicks and > splatter. Most authorities advise against using it. This is not new -- it's > in the manual for Ten Tec legal limit amps from the late '70s and for every > amp I've owned since." > > The OP has a KPA500 and K3S interconnect by an Elecraft AUX cable. This > means that ALC is connected (Aux cable pin 15) and opens the possibility > that it is not configured correctly. What I don't know is whether > incorrectly configured ALC could cause the reported problem. I suspect > that > would depend on the time constant(s) of the ALC loop. > > 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 dick 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 chandlerusm at gmail.com > -- Sent from Gmail Mobile Chuck Chandler chandlerusm at gmail.com From rmcgraw at blomand.net Sun Apr 26 20:47:36 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Sun, 26 Apr 2020 19:47:36 -0500 Subject: [Elecraft] Power Supplies and Voltage drop In-Reply-To: <1f46e509-5f10-3056-4aa1-d7248584e4fb@blomand.net> References: <1f46e509-5f10-3056-4aa1-d7248584e4fb@blomand.net> Message-ID: <3f099c15-4d49-51d4-6b57-b244e12ffaae@blomand.net> One point brought to my attention by Jack Brindle, has to do with the indicated voltage on the K3S display.? The manual page 57, ADC REF makes it clear as to the calibration procedure and that if the ADC REF is not correct, then display values, such as the rig's supply voltage may not indicate correctly. I did check mine and found it to be in slight error.? Once corrected specifically following the procedure, things fell in line correctly.??? You will need a DVM to accurately measure the voltage at pin #2 at the ACC connector.?? This must be done? "*while the ADC REF parameter is being viewed in the menu*.". Hopes this information helps. 73 Bob, K4TAX On 4/25/2020 10:21 PM, Bob McGraw K4TAX wrote: > {I changed the topic for good reason.}??? Was " K3S poor CW keying > further investigation" > > Lee brings up a good point with regard to power supply terminals. > > If you have one of those power supplies that have the terminals with a > set screw in the side, you are limited to the number or wires or wire > size which can be correctly inserted. > > Here is what I did to remedy the situation.??? I obtained two 10-32 x > 2" brass screws from the hardware store.? I got 4 nuts, 2 for each > screw, 4 flat washers, 2 for each screw and two wing nuts.?? I then > cut the head off of each screw and filed a flat spot about 1/2 " long > and deep enough to removed the threads. This modified screw was then > inserted into the power supply terminal so that the flat spot aligned > with the set screw. Tighten the set screw.? Then run two of the nuts > on the protruding screw, just up to the power supply connector, but > not tight against it,? and the second nut against the first to form a > jam-nut.? Add a flat washer, add all the ring terminals you wish, and > then a flat washer and finally the wing nut.?? Do the same for the > other terminal.?? Now you have plenty of stud length and have not > actually modified your power supply.? Some fear making modifications > for fear of loosing warranty coverage. > > As a bonus, should you desire to remove the power supply, loosen the > set screws on the power supply connector and pull out the entire > bolt/stud assembly, ring terminals and wires, leaving them attached.?? > Only one set screw to loosen removes the entire assembly.? Now how > neat is that? > > 73 > > Bob, K4TAX > > > On 4/25/2020 9:50 PM, Leroy Buller wrote: >> Chuck, I am late to this discussion so I might be saying things that >> already been said.? I found the same issue.? Voltage down to 11.5 >> volts on >> any ps I used.? So, I found the issue was power pole connectors that >> were >> to light.? Look for power pole connectors that handle 30 amps or so.? >> Power >> poles come in different amperage with the same shell.? Don't get fooled >> with that.? I did. >> >> Then I limited the cable to 24 inches.? #10 wire and higher current >> power >> poles.? Voltage dropped fro. 13.8 to 13.1 at 100 watts . >> >> Somebody said that DC systems act significantly to resistance. Lower the >> resistance to the smallest number is what I tried to do. >> >> Some ps have funky connectors o. The back, and might have to jigger >> those >> to bolts and nuts.? I opted to use sleeves crimped on the end of the >> wire, >> soldered, and then stuffed in the connector.?? The set screws were >> replace >> with machine bolts and tighten but you cannot over tighten because the >> threads might strip. >> >> >> Lee K0WA >> >> O From mikek4qu at gmail.com Sun Apr 26 21:32:10 2020 From: mikek4qu at gmail.com (Mike March) Date: Sun, 26 Apr 2020 21:32:10 -0400 Subject: [Elecraft] P3 Beep off Message-ID: On my P3, the beep function has been disabled. I cannot find a reference to this in the manual. Has anyone else had this happen? Thanks. -- Michael March K4QU 242 Clay Hill Dr. Winchester, VA 22602 mikek4qu at gmail.com 540-662-4279 home 540-539-8500 cell From donovanf at starpower.net Sun Apr 26 22:00:33 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Sun, 26 Apr 2020 22:00:33 -0400 (EDT) Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp In-Reply-To: <1f744902-13df-2d8d-f732-8bddecae9787@blomand.net> Message-ID: <1683129654.3015734.1587952833182.JavaMail.root@starpower.net> A good rule of thumb is that if receiver background noise level drops at least one S-unit when the antenna is removed, then receiver sensitivity is externally noise limited. This may be hard to achieve on 6 meters unless all losses from the antenna feed point to the receiver input are less than 2 dB and impossible to achieve on 2 meters and above unless total losses are less than one dB. This rule-of-thumb is very valuable on the lower bands because it helps the operator select the proper receiver attenuator and RF preamplifier settings for optimum dynamic range while retaining full system sensitivity. You'd be surprised how few DXers and contesters understand this simple principle, and fewer still actually do it when they sit in front of their receiver. 73 Frank W3LPL ----- Original Message ----- From: "Bob McGraw K4TAX" To: elecraft at mailman.qth.net Sent: Monday, April 27, 2020 12:12:56 AM Subject: Re: [Elecraft] RX Ant K3 Preamp vs External Preamp The internal preamp in my K3S does an excellent job on 6 meters. If I decided to use an external preamp, it would be located at the antenna feed point with suitable switching and protection. I suppose the question, what bands do you perceive you need a preamp? And what is your no signal band noise on the bands of concern? 73 Bob, K4TAX On 4/26/2020 6:32 PM, Rich wrote: > I am interested in finding out from the experts.................... > > Is it best to use the K3 internal pre-amp or add an external pre-amp > to the RX antenna system? > > Thanks > > Rich > > K3RWN > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donovanf at starpower.net From m.matthew.george at gmail.com Sun Apr 26 22:02:27 2020 From: m.matthew.george at gmail.com (M. George) Date: Sun, 26 Apr 2020 20:02:27 -0600 Subject: [Elecraft] P3 Beep off In-Reply-To: References: Message-ID: Go to the CONFIG SW TONE setting and change it to ON (the default). Max NG7M On Sun, Apr 26, 2020 at 7:32 PM Mike March wrote: > On my P3, the beep function has been disabled. I cannot find a reference > to this in the manual. Has anyone else had this happen? Thanks. > > -- > Michael March K4QU > 242 Clay Hill Dr. > Winchester, VA 22602 > mikek4qu at gmail.com > 540-662-4279 home > 540-539-8500 cell > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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.matthew.george at gmail.com > -- M. George From dave at nk7z.net Sun Apr 26 22:12:16 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 26 Apr 2020 19:12:16 -0700 Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) In-Reply-To: References: Message-ID: I run my KPA500 with no ALC, and have from day 1. Somewhere I have seen a recommendation, (I think by Elecraft), to not run ALC with the KPA500. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/26/20 3:43 PM, Jim Brown wrote: > On 4/26/2020 1:37 PM, Andy Durbin wrote: > > > I'm probably well out of my depth here but could this be caused by > > incorrectly configured ALC feedback from the KPA500 to the rig? > > In general, ALC between an amp and a rig is a recipe for clicks and > splatter. Most authorities advise against using it. This is not new -- > it's in the manual for Ten Tec legal limit amps from the late '70s and > for every amp I've owned since. > > If it is used, it should be set for well above normal output power so > that it only kicks in to reduce drive when something breaks in the > antenna system or the operator experiences brain cramp and transmits > into the wrong antenna. :) And good solid state amps are well enough > protected that they do that without ALC. > > 73, Jim K9YCX > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 n4zr at comcast.net Sun Apr 26 22:28:08 2020 From: n4zr at comcast.net (N4ZR) Date: Sun, 26 Apr 2020 22:28:08 -0400 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: Gee Jim, I didn't think I was *that* stupid. Yes, I didn't get the decimal places right -that was a simple brain phart.? As for the licensing tests, did you have to draw a Colpitts oscillator?? IIRC, that was on my General exam in 1955. With the power strip, what's wrong with measuring the voltage in and out, knowing the current being drawn, and deriving the resistance from that? 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 4/26/2020 6:24 PM, Jim Brown wrote: > I wouldn't expect useful accuracy from anything but a lab instrument > for such low resistances as a few feet of #12. Far better to look up > the resistance of copper wire from a wire table. An unknown "black > box" like a power strip is not so easy. :) As for the protection > diode, that's pretty easy too -- look up the junction voltage for that > type of diode, and you're within 0.1 volt of reality. > > The thing I find baffling (or depressing) here is that we all had to > understand Ohm's Law to pass the exam for our license, and it's REAL > simple.? Take resistance values from a wire table, multiply by the > length, then by two for the two conductors, then by the current. I > dunno what the exam is like nowadays -- my experience was 1955 with > the Novice test and a year later with the General -- but surely there > must be something about how diodes work! > > 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 n4zr at comcast.net From frantz at pwpconsult.com Sun Apr 26 22:46:14 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sun, 26 Apr 2020 22:46:14 -0400 Subject: [Elecraft] Voltage drop in DC Power to K3 In-Reply-To: <5D02C650-A8A3-4414-BEAA-6BC8F56C7FA0@gmail.com> Message-ID: If you really want better connections, try the 75 amp power poles. Of course they are bigger, and not plug compatible with the 15, 30, 45 amp connectors. (And I always thought the only difference between the 15, 30, and 45 amp connectors was the size of wire you could cram into them.) 73 Bill AE6JV On 4/26/20 at 1:21 PM, anyone1545 at gmail.com (Gmail) wrote: >Or use bigger connectors, like 45 amp power poles. ----------------------------------------------------------------------- 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 frantz at pwpconsult.com Sun Apr 26 22:46:14 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sun, 26 Apr 2020 22:46:14 -0400 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: Having helped teach a number of Tech level ham crams, Ohm's law and diodes are both on the test. I'm not sure that all of the nitty gritty of diodes -- voltage drop by type etc. are covered though. I think you can pass not knowing either though. :-( 73 Bill AE6JV On 4/26/20 at 6:24 PM, jim at audiosystemsgroup.com (Jim Brown) wrote: >The thing I find baffling (or depressing) here is that we all >had to understand Ohm's Law to pass the exam for our license, >and it's REAL simple. Take resistance values from a wire >table, multiply by the length, then by two for the two >conductors, then by the current. I dunno what the exam is like >nowadays -- my experience was 1955 with the Novice test and a >year later with the General -- but surely there must be >something about how diodes work! ------------------------------------------------------------------------- Bill Frantz | The first thing you need when | Periwinkle (408)348-7900 | using a perimeter defense is a | 150 Rivermead Rd #235 www.pwpconsult.com | perimeter. | Peterborough, NH 03458 From donovanf at starpower.net Sun Apr 26 22:50:28 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Sun, 26 Apr 2020 22:50:28 -0400 (EDT) Subject: [Elecraft] Poor CW note more testing and a question (rather long-ish...) In-Reply-To: Message-ID: <867287470.3026417.1587955828708.JavaMail.root@starpower.net> Page 27 of the K3 Manual addresses proper use of ALC with the K3: External ALC External ALC should only be used to protect your amplifier during operation into a failed load, or during a prolonged overdrive condition. ALC should not be used as a way to clip or compress fast voice peaks, or as a primary means of amplifier or K3 power output control. DO NOT set the K3?s power level to maximum and adjust amp output using the amp?s ALC control. This will result in splatter and key clicks. Instead, adjust the drive on each band so it?s just below ALC activation level. https://ftp.elecraft.com/K3/Manuals%20Downloads/E740107%20K3%20Owner's%20man%20D10.pdf 73 Frank W3LPL ----- Original Message ----- From: "Dave Cole" To: elecraft at mailman.qth.net Sent: Monday, April 27, 2020 2:12:16 AM Subject: Re: [Elecraft] Poor CW note more testing and a question (rather long-ish...) I run my KPA500 with no ALC, and have from day 1. Somewhere I have seen a recommendation, (I think by Elecraft), to not run ALC with the KPA500. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/26/20 3:43 PM, Jim Brown wrote: > On 4/26/2020 1:37 PM, Andy Durbin wrote: > > > I'm probably well out of my depth here but could this be caused by > > incorrectly configured ALC feedback from the KPA500 to the rig? > > In general, ALC between an amp and a rig is a recipe for clicks and > splatter. Most authorities advise against using it. This is not new -- > it's in the manual for Ten Tec legal limit amps from the late '70s and > for every amp I've owned since. > > If it is used, it should be set for well above normal output power so > that it only kicks in to reduce drive when something breaks in the > antenna system or the operator experiences brain cramp and transmits > into the wrong antenna. :) And good solid state amps are well enough > protected that they do that without ALC. > > 73, Jim K9YCX > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donovanf at starpower.net From rwnewbould at comcast.net Sun Apr 26 23:26:20 2020 From: rwnewbould at comcast.net (Rich) Date: Sun, 26 Apr 2020 23:26:20 -0400 Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp In-Reply-To: <1f744902-13df-2d8d-f732-8bddecae9787@blomand.net> References: <8b0e3002-d756-d813-d993-78efc67bfae9@comcast.net> <1f744902-13df-2d8d-f732-8bddecae9787@blomand.net> Message-ID: I was talking about RX antennas,? like Beverages and such, so mainly 40m and 80m.?? I am happy with the K3 pre-amp I was just curious to what others use Thanks Rich On 4/26/2020 20:12 PM, Bob McGraw K4TAX wrote: > The internal preamp in my K3S does an excellent job on 6 meters.?? If > I decided to use an external preamp, it would be located at the > antenna feed point with suitable switching and protection. > > I suppose the question, what bands do you perceive you need a preamp?? > And what is your no signal band noise on the bands of concern? > > 73 > > Bob, K4TAX > > > On 4/26/2020 6:32 PM, Rich wrote: >> I am interested in finding out from the experts.................... >> >> Is it best to use the K3 internal pre-amp or add an external pre-amp >> to the RX antenna system? >> >> Thanks >> >> Rich >> >> K3RWN >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 rwnewbould at comcast.net From kevinr at coho.net Mon Apr 27 00:24:23 2020 From: kevinr at coho.net (kevinr) Date: Sun, 26 Apr 2020 21:24:23 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: Good Evening, ?? Twenty meters was better than it has been in a while.? Signals were good with medium levels of QSB.? Noise was not too bad either.? Forty meters had both slow and faster QSB.? I could not hear any storms but those will be here soon enough. ?? I have received more email comments about a Wednesday evening net.? We may have a quorum.? I want to try right around local sunset.? That would be 8 PM PDT.? The band should be awake by then though it may be changing quickly.? I've never gotten a handle on forty, it seems slippery to me. ?? To review: forty meters, Wednesday evening at 8 PM PDT, at or near 7047 kHz.? If other mode operators want to participate maybe we can have some cross mode contacts.? The goal is to have a little conversation and some question and answer.? It may be possible to coax N6KR out of hiding for a bit of K4 news or an on air demo.? I believe in unicorns too :) ? More yard work for everyone.? Everyone except Rick.? I think he spends his time fertilizing his antenna crop.? I am going to hike when its dry and plan a new antenna path.? It is more than time to build a few more with all the room.? A potato gun may launch my next center line.? There are too many very tall fir trees going to waste. ? On 14050.5 kHz at 2200z: W0CZ - Ken - ND KL7CW - Rick - AK K6XK - Roy - IA AB9V - Mike - IN K4TO - Dave - KY K4JPN - Steve - GA NO8V - John - MI ? On 7047.5 kHz at 0000z: K0DTJ - Brian - CA K6PJV - Dale - CA K6XK - Roy - IA ??? Until next week stay out of trouble.? 73, ??????? Kevin.? KD5ONS - From donovanf at starpower.net Mon Apr 27 00:25:59 2020 From: donovanf at starpower.net (donovanf at starpower.net) Date: Mon, 27 Apr 2020 00:25:59 -0400 (EDT) Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp In-Reply-To: Message-ID: <1973192653.3043513.1587961559398.JavaMail.root@starpower.net> Hi Rich, There's a very broad variety of receive-only preamps on the market. I use the many Advanced Receiver Research P1-30/20VD preamps in my station and I've always been very pleased with their performance from 160 through 40 meters. Because they're broadband preamps, they should have a simple receiving bandpass filter ahead of the preamp. www.advancedreceiver.com/page46.html If you're a technically inclined amateur there's an excellent overview here: ac0c.com/main/page_homebrew_preamps.html 73 Frank W3LPL ----- Original Message ----- From: "Rich" To: elecraft at mailman.qth.net Sent: Monday, April 27, 2020 3:26:20 AM Subject: Re: [Elecraft] RX Ant K3 Preamp vs External Preamp I was talking about RX antennas, like Beverages and such, so mainly 40m and 80m. I am happy with the K3 pre-amp I was just curious to what others use Thanks Rich On 4/26/2020 20:12 PM, Bob McGraw K4TAX wrote: > The internal preamp in my K3S does an excellent job on 6 meters. If > I decided to use an external preamp, it would be located at the > antenna feed point with suitable switching and protection. > > I suppose the question, what bands do you perceive you need a preamp? > And what is your no signal band noise on the bands of concern? > > 73 > > Bob, K4TAX > > > On 4/26/2020 6:32 PM, Rich wrote: >> I am interested in finding out from the experts.................... >> >> Is it best to use the K3 internal pre-amp or add an external pre-amp >> to the RX antenna system? >> >> Thanks >> >> Rich >> >> K3RWN >> >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 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 donovanf at starpower.net From n1al at sonic.net Mon Apr 27 00:58:17 2020 From: n1al at sonic.net (Alan Bloom) Date: Sun, 26 Apr 2020 22:58:17 -0600 Subject: [Elecraft] P3 Beep off In-Reply-To: References: Message-ID: <5468931d50c728981c17820ca4025635@sonic.net> Of course, that's for the K3. The P3 doesn't have beep tones. Alan N1AL On 2020-04-26 20:02, M. George wrote: > Go to the CONFIG SW TONE setting and change it to ON (the default). > > Max NG7M > > On Sun, Apr 26, 2020 at 7:32 PM Mike March wrote: > >> On my P3, the beep function has been disabled. I cannot find a reference >> to this in the manual. Has anyone else had this happen? Thanks. >> >> -- >> Michael March K4QU >> 242 Clay Hill Dr. >> Winchester, VA 22602 >> mikek4qu at gmail.com >> 540-662-4279 home >> 540-539-8500 cell >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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.matthew.george at gmail.com From alorona at sbcglobal.net Mon Apr 27 01:57:49 2020 From: alorona at sbcglobal.net (Al Lorona) Date: Mon, 27 Apr 2020 05:57:49 +0000 (UTC) Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp In-Reply-To: <1683129654.3015734.1587952833182.JavaMail.root@starpower.net> References: <1f744902-13df-2d8d-f732-8bddecae9787@blomand.net> <1683129654.3015734.1587952833182.JavaMail.root@starpower.net> Message-ID: <1362111644.769053.1587967069954@mail.yahoo.com> Precisely the intended application for a visual aid to show where the sensitivity of the receiver sits relative to the band noise. W3LPL is absolutely correct in asserting that relatively few know how to optimize their settings for a given band condition. Just sayin'. Al? W6LX > wrote: >This rule-of-thumb is very valuable on the lower bands because it helps? >the operator select the proper receiver attenuator and RF preamplifier >settings for optimum dynamic range while retaining full system sensitivity. >You'd be surprised how few DXers and contesters understand this simple >principle, and fewer still actually do it when they sit in front of their >receiver. From jim at audiosystemsgroup.com Mon Apr 27 02:22:07 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 26 Apr 2020 23:22:07 -0700 Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp In-Reply-To: <8b0e3002-d756-d813-d993-78efc67bfae9@comcast.net> References: <8b0e3002-d756-d813-d993-78efc67bfae9@comcast.net> Message-ID: <59e8dfe5-a984-c985-51f1-5bbb5ad32c2f@audiosystemsgroup.com> On 4/26/2020 4:32 PM, Rich wrote: > Is it best to use the K3 internal pre-amp or add an external pre-amp to > the RX antenna system? Unless you operate in a VERY quiet location, it's hard to beat the preamp in the K3S (and that was offered as an accessory for the K3). The preamp in the original K3 was not very good, and really needed the accessory unit they offered for 12M and above. I have a outboard GAsFet preamp designed for 6M that is slightly better than the K3S preamp, and that I bought long before there was a K3. As it turns out, it also works well down to 12M. I used it with my K3 at the patch point. I've since replaced the transverter module in my K3s to get that upgraded preamp. Bob is certainly correct about the virtue of a preamp at the antenna, but the 6M antenna on which I would use it is within 10 ft of two antennas with which I run legal limit, and I have concerns that it would survive up there. :) My compromise is 7/8-in hard line for those antennas, which minimizes the loss, and thus the advantage of a mast-mounted preamp. 73, Jim K9YC From jim at audiosystemsgroup.com Mon Apr 27 02:24:23 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 26 Apr 2020 23:24:23 -0700 Subject: [Elecraft] Voltage drop in DX Power to K3 In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: On 4/26/2020 7:28 PM, N4ZR wrote: > did you have to draw a Colpitts oscillator?? IIRC, that was on my > General exam in 1955. Yep. It was one of several we had to learn. :) > With the power strip, what's wrong with measuring the voltage in and > out, knowing the current being drawn, and deriving the resistance from > that? Because most instrumentation available to hams isn't accurate enough. 73, Jim K9YC From jim at audiosystemsgroup.com Mon Apr 27 02:33:18 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 26 Apr 2020 23:33:18 -0700 Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp In-Reply-To: References: <8b0e3002-d756-d813-d993-78efc67bfae9@comcast.net> <1f744902-13df-2d8d-f732-8bddecae9787@blomand.net> Message-ID: <93901c57-57c5-334f-cd44-67e47af26c91@audiosystemsgroup.com> On 4/26/2020 8:26 PM, Rich wrote: > I was talking about RX antennas,? like Beverages and such, so mainly 40m > and 80m.?? I am happy with the K3 pre-amp I was just curious to what > others use As always, W3LPL's response is pretty much on the money for this. The slightly longer short answer is that it depends on the antenna and the noise where you use it. Some RX antennas have far higher output than others. Beverages, for example, have fairly high output, so the preamp built into most radios is plenty good enough, even in a quiet location. Smaller antennas are more likely to need an outboard preamp. Some need a preamp at the antenna. There's greater discussion of this in this piece that I wrote for National Contest Journal a few years ago. http://k9yc.com/RXChokesTransformers.pdf 73, Jim K9YC From kl7uw at acsalaska.net Mon Apr 27 03:59:51 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Sun, 26 Apr 2020 23:59:51 -0800 Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp Message-ID: <202004270759.03R7xrvw015099@mail46c28.carrierzone.com> Assuming this question is for the K3, K3S, and K4, then the only bands that preamp NF and preamp location matter is on 10m & 6m. I run eme on 50, 144, and 1296 MHz; at 144 and above a so-called masthead preamp (close to antenna) makes a difference in receiver sensitivity (ability to hear the weak one's). At 50-MHz I use an ARR P50VDG preamp at the base of my eme tower. But its a very marginal improvement over using the PR6 on back of my K3. For all non-eme operating I just use the PR6. I believe the PR6 is not needed in the K3S and K4. If your coax line loss is under 1-dB locating the preamp at the radio works fine. Most 6m-eme stations have under 1-dB loss and place their preamp at the radio. PR6 helps my 2010 era K3 on 10m as well. I never use the internal preamp with either the PR6 or ARR preamps, but sometimes use it on 20m or 17m. 30, 40, and 80m do not need any preamp as those bands are sky noise limited (for most of us). 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From kl7uw at acsalaska.net Mon Apr 27 04:20:28 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Mon, 27 Apr 2020 00:20:28 -0800 Subject: [Elecraft] RX Ant K3 Preamp vs External Preamp Message-ID: <202004270820.03R8KU1x018520@mail47c28.carrierzone.com> Indeed! Most eme'rs encounter this issue some point in their operation. I started out on 144-MHz with only 100w on CW. Then began use of digital in 2003. But it was not until I started running above 800w in 2011 that I began to see preamp failure. I like my preamps to not see RF over 0 dBm (1mw) so that implies the need for 61.8 dB isolation if running 1500w. Initially I was using a coax relay with only 45-dB isolation. So I upgraded to better relays (spec > 80-dB). But there are two other paths for RF to reach the preamp: 1) thru the dc power leads (solved by using RG-58 for my power leads), 2) poor shielding in coax jumper from relay to preamp (solved by using double-shielded RG-142). I also use a sequencer for controlling relay and amp transfer to transmit (to avoid hot-switching the relay). These are probably good arguments for using the internal preamp in a K3S or PR6 at the K3. Internal TR switching protects them. 73, Ed but the 6M antenna on which I would use it is within 10 ft of two antennas with which I run legal limit, and I have concerns that it would survive up there. :) My compromise is 7/8-in hard line for those antennas, which minimizes the loss, and thus the advantage of a mast-mounted preamp. 73, Jim K9YC 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From egan.dennis88 at gmail.com Mon Apr 27 06:37:03 2020 From: egan.dennis88 at gmail.com (Dennis W1UE) Date: Mon, 27 Apr 2020 06:37:03 -0400 Subject: [Elecraft] Rear panel mike jack Message-ID: I have a K3 with a rear panel mike jack and the rear panel Line Out jack that have become intermittent. I can find the Line Out jack on the Elecraft website, but not the Mike input jack. Are they the same part number? For that matter, are all those jacks the same part number? And is there a replacement that can be purchased from Mouser or other supplier? Dennis W1UE From k1ike at snet.net Mon Apr 27 07:48:19 2020 From: k1ike at snet.net (Joe) Date: Mon, 27 Apr 2020 07:48:19 -0400 Subject: [Elecraft] Voltage drop in power cable References: <7ead8c5f-7c41-2ccd-2d36-a7d7fa83584c.ref@snet.net> Message-ID: <7ead8c5f-7c41-2ccd-2d36-a7d7fa83584c@snet.net> For the purest, a possible fix would be to use a power supply that uses sense leads to regulate the output voltage like my old Lambda power supply does. I don't use the Lambda for the ham shack, but this would solve the problem. The sense leads would be connected as close to the transceiver as possible. They send a sample of the voltage at that point back to the power supply so the power supply can properly regulate the voltage at that point. The sense wires are typically small gauge wire because they don't carry much current at all. For safety, the sense lead should be fused at the voltage source. I would only use the supply to power the transceiver, or make sure all equipment is powered from the same point as the transceiver to avoid over-voltage to other equipment. Joe, K1ike From chandlerusm at gmail.com Mon Apr 27 10:08:56 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Mon, 27 Apr 2020 09:08:56 -0500 Subject: [Elecraft] Poor CW note waveform resolved Message-ID: <5ea6e779.1c69fb81.85518.1361@mx.google.com> From k4to.dave at gmail.com Mon Apr 27 10:30:01 2020 From: k4to.dave at gmail.com (Dave Sublette) Date: Mon, 27 Apr 2020 10:30:01 -0400 Subject: [Elecraft] Poor CW note waveform resolved In-Reply-To: <5ea6e779.1c69fb81.85518.1361@mx.google.com> References: <5ea6e779.1c69fb81.85518.1361@mx.google.com> Message-ID: Well don't leave us in suspense! What was it? K4TO On Mon, Apr 27, 2020 at 10:09 AM Chuck Chandler wrote: > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 chandlerusm at gmail.com Mon Apr 27 10:50:49 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Mon, 27 Apr 2020 09:50:49 -0500 Subject: [Elecraft] Poor CW note waveform resolved In-Reply-To: <5ea6e779.1c69fb81.85518.1361@mx.google.com> References: <5ea6e779.1c69fb81.85518.1361@mx.google.com> Message-ID: Apparently one of my email clients is sending something the list won't accept. Here's my earlier email, hope it makes it! Well, I finally figured out why I was seeing a sausage-shaped waveform on the P3. I looked very carefully at the photo of a CW waveform shown in the P3 manual and tried to duplicate it exactly. I had been using the Spectrum and waterfall displays, so I disabled the waterfall display. The waveform looked better. Then I read the time scale at the bottom of the picture in the manual ? mine was way off. Mine had been set at the default setting for Mod Scale of 25. In order to duplicate the picture in the manual I had to increase this to 100. That gave me the identical spacing of marks and value (10 mSec/mark) as in the picture. Once I did that, my displayed waveform looked identical to those in the manual. So, one problem solved? or perhaps resolved is a better word, as there is no indication the waveform was ever actually soft. Still a little more work to do on the CW sounding a little off at QRO QRQ. I?ll adjust the HV tap to bring full-load HV back up above 60V and see if that takes care of it. Many thanks for all the help and advice. 73 de Chuck, WS1L On Mon, Apr 27, 2020 at 9:08 AM Chuck Chandler wrote: > Well, I finally figured out why I was seeing a sausage-shaped waveform on > the P3. I looked very carefully at the photo of a CW waveform shown in the > P3 manual and tried to duplicate it exactly. I had been using the Spectrum > and waterfall displays, so I disabled the waterfall display. The waveform > looked better. Then I read the time scale at the bottom of the picture in > the manual ? mine was way off. Mine had been set at the default setting > for Mod Scale of 25. In order to duplicate the picture in the manual I had > to increase this to 100. That gave me the identical spacing of marks and > value (10 mSec/mark) as in the picture. > > > > Once I did that, my displayed waveform looked identical to those in the > manual. So, one problem solved? or perhaps resolved is a better word, as > there is no indication the waveform was ever actually soft. > > > > Still a little more work to do on the CW sounding a little off at QRO > QRQ. I?ll adjust the HV tap to bring full-load HV back up above 60V and > see if that takes care of it. > > > > Many thanks for all the help and advice. > > > > 73 de Chuck, WS1L > > ================ > Chuck Chandler > chandlerusm at gmail.com > ================ > > > > *From: *Chuck Chandler > *Sent: *Sunday, April 26, 2020 7:47 PM > *To: *Dick Dievendorff > *Cc: *Andy Durbin ; elecraft at mailman.qth.net > *Subject: *Re: [Elecraft] Poor CW note more testing and a question > (rather long-ish...) > > > > My EXT ALC menu is set to the default of OFF t-40. The soft waveform is > displayed on the P3 apparently the same shape whether the amp is in use or > standby. > > > > 73, > > > > Chuck, WS1L > > > > On Sun, Apr 26, 2020 at 19:36 Dick Dievendorff wrote: > > External ALC is enabled on the K3 and K3S with a menu entry that defaults > to > OFF. See page 29 of the K3S owner's manual. > > 73 de Dick, K6KR > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On > Behalf Of Andy Durbin > Sent: Sunday, April 26, 2020 17:20 > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Poor CW note more testing and a question (rather > long-ish...) > > "In general, ALC between an amp and a rig is a recipe for clicks and > splatter. Most authorities advise against using it. This is not new -- it's > in the manual for Ten Tec legal limit amps from the late '70s and for every > amp I've owned since." > > The OP has a KPA500 and K3S interconnect by an Elecraft AUX cable. This > means that ALC is connected (Aux cable pin 15) and opens the possibility > that it is not configured correctly. What I don't know is whether > incorrectly configured ALC could cause the reported problem. I suspect > that > would depend on the time constant(s) of the ALC loop. > > 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 dick 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 chandlerusm at gmail.com > > -- > > Sent from Gmail Mobile Chuck Chandler chandlerusm at gmail.com > > > -- =================== Chuck Chandler chandlerusm at gmail.com =================== From chandlerusm at gmail.com Mon Apr 27 11:02:21 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Mon, 27 Apr 2020 10:02:21 -0500 Subject: [Elecraft] Blank emails Message-ID: For some reason when I send an email to the list from Windows Mail it shows up empty. Other clients seem ok. Anyone else seen this? 73 de Chuck, WS1L -- Sent from Gmail Mobile Chuck Chandler chandlerusm at gmail.com From jasimmons at pinewooddata.com Mon Apr 27 11:08:10 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Mon, 27 Apr 2020 10:08:10 -0500 Subject: [Elecraft] Blank emails In-Reply-To: References: Message-ID: If your email client sends HTML content only the email reflector will throw it away. In your settings select both HTML and plain text. Then the reflector will send it along. -de John NI0K Chuck Chandler wrote on 4/27/2020 10:02 AM: > For some reason when I send an email to the list from Windows Mail it shows > up empty. Other clients seem ok. Anyone else seen this? > > 73 de Chuck, WS1L From jim at audiosystemsgroup.com Mon Apr 27 11:11:53 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 27 Apr 2020 08:11:53 -0700 Subject: [Elecraft] Blank emails In-Reply-To: References: Message-ID: <21de9b19-9d18-3371-c4fd-3d22060fc895@audiosystemsgroup.com> On 4/27/2020 8:02 AM, Chuck Chandler wrote: > For some reason when I send an email to the list from Windows Mail it shows > up empty. Other clients seem ok. Anyone else seen this? Many email reflectors reject formatted text. This is one of them. I use Thunderbird, an excellent, full-featured email client, freeware from the same company that produces FireFox. It can be set to do formatting or send plain text. 73, Jim K9YC From w6ya at cox.net Mon Apr 27 12:41:05 2020 From: w6ya at cox.net (Jim McCook) Date: Mon, 27 Apr 2020 16:41:05 +0000 Subject: [Elecraft] Rear Panel Mike Jack Message-ID: <36fdf74e-d85a-e91a-60fd-fd9232967d0e@cox.net> Dennis, I had the same problem with the line out jack.? Spraying contact cleaner on a plug and working it around didn't help; one channel was open.? You need to replace the whole board unless you want a huge task.? Find someone who has upgraded his K-3 to a K-3s.? He will probably have the old board to give you.? It's the KIO3 I/O audio module.? Most likely someone seeing this message can help.? Jim W6YA From pincon at erols.com Sat Apr 25 19:15:28 2020 From: pincon at erols.com (Charlie T) Date: Sat, 25 Apr 2020 19:15:28 -0400 Subject: [Elecraft] Power supply V drop - was poor CW on K3S In-Reply-To: <7c9ca85e-f064-c501-2f73-9d22f52bc439@foothill.net> References: <7c9ca85e-f064-c501-2f73-9d22f52bc439@foothill.net> Message-ID: <002901d61b57$6c9c36d0$45d4a470$@erols.com> Well, if you simply "must" have a fuse, use the type that those monster car blasters use, an AGU (5AG) type. They are 1?" long and 13/32" in diameter with usually gold plated endcaps. The holders are up to the task as well, with low resistance gold plated pressure fit caps, and are typically water proof. They have hex key set screws for the (BEEEG) wire connection. Perfect for under hood or home use with fuses available from 100 mA up to 200 Amp ratings at 32VDC. I don't think you can find a more efficient fuse & holder for low voltage drop. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Fred Jensen Sent: Saturday, April 25, 2020 2:20 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Power supply V drop - was poor CW on K3S "glass fuses"? You want to avoid the in-line cylindrical cartridge fuses, the holders almost always have too much resistance. Blade-type automotive fuses are much better ... much more contact surface, much more contact pressure, and a wiping action as you insert the fuse. A drop of DeOxit on the blades as you insert the fuse will also help. If this is a fixed installation and your power supply has some form of overcurrent protection [e.g. crowbar], there may be no need for any fuses in the power cable. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/25/2020 9:01 AM, Chuck Chandler wrote: > Here's an update. > > I replaced the power cable running from the powerstrip with a 3-foot > length with glass fuse holders in each leg. I also adjusted the power > supply to 14.50V at rest. The K3S now shows 14.2V at rest. At 100W > TX the K3S shows 13.2V, so a 1 volt drop. Way too much. > > The power supply voltage measured at the terminals drops from 14.50 to > 14.44 for full power TX. This seems too much, I had read the drop > should be no more than 0.01V and this is 0.06V. > > So, suspecting the in line fuse holders I made up another cable with > dual blade-fuse holders, which was worse. TX voltage on the K3S > display dropped to 12.9V. > > I'm suspecting my power supply is to blame - it's a TenTec 963, a > re-branded Astron SS-30. Alternatively, I have another commercial > power cable with fuse holders I can cut down and try. > > Many thanks for all the help both here on the reflector and the direct > emails from several fellows, and to Rich VE3KI for the on-air tests > this morning! > > 73 de Chuck, WS1L > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 pincon at erols.com Sun Apr 26 23:33:19 2020 From: pincon at erols.com (Charlie T) Date: Sun, 26 Apr 2020 23:33:19 -0400 Subject: [Elecraft] Voltage drop in DC Power to K3 In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <1UW7pSqG81.19GLEKGjHXuK@pete-pc> Message-ID: <008301d61c44$9ce51120$d6af3360$@erols.com> >From the wire tables, I think you'll find that doubling the number of wires will result in an equivalent of one cable 3 wire sizes larger. That is, two #18 wires equals one #15 ( and yes, I KNOW there isn't any #15 wire easily available). Likewise, two #12 wires is the same as one #9. So, from this, the hassle of using two #12 wires is only slightly better than one #10, but not quite as good as one #8. Obviously, every installation may be unique, so use the largest you're comfortable with. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Jim Brown Sent: Sunday, April 26, 2020 6:39 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Voltage drop in DC Power to K3 On 4/26/2020 10:18 AM, Pete Lascell wrote: > When making connections unravel a few outside strands and cut off so the remaining strands will fit the terminals being used correctly. The smaller (higher resistance) section of cable will be only part of an inch. Heatshrink tubing will cover the unsightly chop job. Yep. And I've also used W1ZR's solution of two of the same size cables in parallel. 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 pincon at erols.com From k6dgw at foothill.net Mon Apr 27 14:03:41 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Mon, 27 Apr 2020 11:03:41 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: What was it with the FCC and the Colpitts oscillator schematic on the exams in the 50's/early 60's?? It was on my General ['54] and Extra ['56] exams, and practically everyone else I've asked says it was on theirs too.? There are other oscillator circuits of the day.? Colpitts uses capacitive feedback which is somewhat more stable than a Hartley with its "Tickler Coil," but the FCC seemed fixated on the Colpitts for some reason.? The schematic and operation of a dual-triode 1-shot was also popular. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/26/2020 7:28 PM, N4ZR wrote: > As for the licensing tests, did you have to draw a Colpitts > oscillator? IIRC, that was on my General exam in 1955. From c-hawley at illinois.edu Mon Apr 27 14:14:57 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Mon, 27 Apr 2020 18:14:57 +0000 Subject: [Elecraft] Voltage drop in power cable In-Reply-To: <7ead8c5f-7c41-2ccd-2d36-a7d7fa83584c@snet.net> References: <7ead8c5f-7c41-2ccd-2d36-a7d7fa83584c.ref@snet.net>, <7ead8c5f-7c41-2ccd-2d36-a7d7fa83584c@snet.net> Message-ID: I wonder what the time constant is for that sense to respond...say to CW or SSB Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Apr 27, 2020, at 6:48 AM, Joe wrote: > > ?For the purest, a possible fix would be to use a power supply that uses sense leads to regulate the output voltage like my old Lambda power supply does. I don't use the Lambda for the ham shack, but this would solve the problem. The sense leads would be connected as close to the transceiver as possible. They send a sample of the voltage at that point back to the power supply so the power supply can properly regulate the voltage at that point. The sense wires are typically small gauge wire because they don't carry much current at all. For safety, the sense lead should be fused at the voltage source. I would only use the supply to power the transceiver, or make sure all equipment is powered from the same point as the transceiver to avoid over-voltage to other equipment. > > Joe, K1ike > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 mikekopacki at gmail.com Mon Apr 27 14:15:50 2020 From: mikekopacki at gmail.com (NJMike) Date: Mon, 27 Apr 2020 11:15:50 -0700 (MST) Subject: [Elecraft] K2 Looking for a KPA 100 amplifier Message-ID: <1588011350033-0.post@n2.nabble.com> I built K2 #4619 some years ago. Now I am considering adding the KPA 100 amplifier. When I bought and built the K2, I also built and installed the following option3: KAT2 automatic antenna tuner KSB2 SSB adapter KDSP2 DSP filter and internal clock KIO2 AUX I/O module KNB2 noise blanker K160RX 160 meter module MH2 microphone On the technical side, I need to know if the amp can be installed after installing all these options. On the purchasing side, I guess my options are purchasing from Elecraft for $650 (which I am sure is worth the price), or buying one from someone who bought one but never built it. I am retired now so I'm trying to spend as little as I can. Please let me know if you have one that you'll sell, and if you know the answer to the first question. Thanks! Mike NJ2OM -- Sent from: http://elecraft.365791.n2.nabble.com/ From dave at w8fgu.com Mon Apr 27 14:24:25 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Mon, 27 Apr 2020 14:24:25 -0400 Subject: [Elecraft] K2 Looking for a KPA 100 amplifier In-Reply-To: <1588011350033-0.post@n2.nabble.com> References: <1588011350033-0.post@n2.nabble.com> Message-ID: <171bce213a8.2852.96e80410205cf590e45b6250d389e5fb@w8fgu.com> Mike, The amp will fit just fine with your current configuration. Although, the KAT2 and KIO2 boards will stay with the original top cover. The KPA100 includes the KIO2 circuitry. If you need an ATU for use with the KPA100, then you will want a KAT100 ATU or other brand that can handle 100+ watts. Hope this answers your question. 73, Dave, W8FGU On April 27, 2020 14:18:04 NJMike wrote: > I built K2 #4619 some years ago. Now I am considering adding the KPA 100 > amplifier. When I bought and built the K2, I also built and installed the > following option3: > > KAT2 automatic antenna tuner > KSB2 SSB adapter > KDSP2 DSP filter and internal clock > KIO2 AUX I/O module > KNB2 noise blanker > K160RX 160 meter module > MH2 microphone > > On the technical side, I need to know if the amp can be installed after > installing all these options. > > On the purchasing side, I guess my options are purchasing from Elecraft for > $650 (which I am sure is worth the price), or buying one from someone who > bought one but never built it. I am retired now so I'm trying to spend as > little as I can. > > Please let me know if you have one that you'll sell, and if you know the > answer to the first question. > > Thanks! > Mike NJ2OM > > > > > -- > 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 jim at audiosystemsgroup.com Mon Apr 27 14:28:25 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 27 Apr 2020 11:28:25 -0700 Subject: [Elecraft] Voltage drop in DC Power to K3 In-Reply-To: <008301d61c44$9ce51120$d6af3360$@erols.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <1UW7pSqG81.19GLEKGjHXuK@pete-pc> <008301d61c44$9ce51120$d6af3360$@erols.com> Message-ID: <1cb0854a-bfac-a0a0-1119-a55bd90e87f9@audiosystemsgroup.com> On 4/26/2020 8:33 PM, Charlie T wrote: > From the wire tables, I think you'll find that doubling the number of wires > will result in an equivalent of one cable 3 wire sizes larger. Yep. Three wire gauges is double the cross sectional area. 73, Jim K9YC From xdavid at cis-broadband.com Mon Apr 27 14:28:39 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Mon, 27 Apr 2020 11:28:39 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: <16b88510-579c-14d7-4f2e-005f65b772de@cis-broadband.com> The Colpitts oscillator was regarded as being the most stable oscillator, which is why it probably was always there, and it was indeed on my test in the mid-60's.? But the Hartley oscillator was also on my test if I remember correctly, as was the tuned-plate tuned grid oscillator.? If I remember correctly, I had to identify each of at least three oscillator types.? The series tuned Colpitts (aka Clapp oscillator) might have been there ... maybe the Pierce crystal oscillator also.? I remember that I was required to be able to tell a bunch of them apart. Dave?? AB7E On 4/27/2020 11:03 AM, Fred Jensen wrote: > What was it with the FCC and the Colpitts oscillator schematic on the > exams in the 50's/early 60's?? It was on my General ['54] and Extra > ['56] exams, and practically everyone else I've asked says it was on > theirs too.? There are other oscillator circuits of the day.? Colpitts > uses capacitive feedback which is somewhat more stable than a Hartley > with its "Tickler Coil," but the FCC seemed fixated on the Colpitts > for some reason.? The schematic and operation of a dual-triode 1-shot > was also popular. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County From mikekopacki at gmail.com Mon Apr 27 14:43:53 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Mon, 27 Apr 2020 14:43:53 -0400 Subject: [Elecraft] K2 Looking for a KPA 100 amplifier Message-ID: <5ea727ea.1c69fb81.965ea.e844@mx.google.com> From k2vco.vic at gmail.com Mon Apr 27 15:00:12 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Mon, 27 Apr 2020 22:00:12 +0300 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: <43b46d3e-c9cf-42dc-e062-38fab59bff5a@gmail.com> Mine was the push-pull triode RF amplifier (not "linear"!), making sure to show the neutralization circuit. They didn't want any high-powered self-excited oscillators on the bands! 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 27/04/2020 21:03, Fred Jensen wrote: > What was it with the FCC and the Colpitts oscillator schematic on the > exams in the 50's/early 60's?? It was on my General ['54] and Extra > ['56] exams, and practically everyone else I've asked says it was on > theirs too.? There are other oscillator circuits of the day.? Colpitts > uses capacitive feedback which is somewhat more stable than a Hartley > with its "Tickler Coil," but the FCC seemed fixated on the Colpitts for > some reason.? The schematic and operation of a dual-triode 1-shot was > also popular. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 4/26/2020 7:28 PM, N4ZR wrote: >> As for the licensing tests, did you have to draw a Colpitts >> oscillator? IIRC, that was on my General exam in 1955. From dave at w8fgu.com Mon Apr 27 15:21:16 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Mon, 27 Apr 2020 15:21:16 -0400 Subject: [Elecraft] K2 Looking for a KPA 100 amplifier In-Reply-To: <5ea727ea.1c69fb81.965ea.e844@mx.google.com> References: <5ea727ea.1c69fb81.965ea.e844@mx.google.com> Message-ID: <171bd161fe0.2852.96e80410205cf590e45b6250d389e5fb@w8fgu.com> Mike, The KAT2 is the QRP version of an ATU used with the base K2. It can handle up to 20 watts. If you need an ATU to work with your KPA100, then you would need the higher KAT100 that will handle 150 watts. The KAT2 and KIO2 mount in the top cover of the base K2. The KPA100 replaces that whole cover. So neither board could be used with the KPA100 installed (as well as the KBT2 battery option). Many ops who upgrade their K2'S with the KPA100, simply keep the top cove around with those options installed and in the event they want to operate QRP, they simply swap the top cover with the KPA100. This is the wonderful nature of the modular design of the K2. Again, I hope this helps and is not clear as mud. 73, Dave, W8FGU On April 27, 2020 14:44:02 Mike Kopacki wrote: > Thanks, Dave. > > You?re saying that the KAT2 that I have now has to be replaced? I wonder > if that?s included in the KPA 100 kit? > > 73, > Mike NJ2OM > > Sent from Mail for Windows 10 > > From: Dave Van Wallaghen > Sent: Monday, April 27, 2020 2:24 PM > To: NJMike; elecraft at mailman.qth.net > Subject: Re: [Elecraft] K2 Looking for a KPA 100 amplifier > > Mike, > > The amp will fit just fine with your current configuration. Although, the > KAT2 and KIO2 boards will stay with the original top cover. The KPA100 > includes the KIO2 circuitry. If you need an ATU for use with the KPA100, > then you will want a KAT100 ATU or other brand that can handle 100+ watts. > > Hope this answers your question. > > 73, > Dave, W8FGU > > On April 27, 2020 14:18:04 NJMike wrote: > > I built K2 #4619 some years ago. Now I am considering adding the KPA 100 > amplifier. When I bought and built the K2, I also built and installed the > following option3: > > KAT2 automatic antenna tuner > KSB2 SSB adapter > KDSP2 DSP filter and internal clock > KIO2 AUX I/O module > KNB2 noise blanker > K160RX 160 meter module > MH2 microphone > > On the technical side, I need to know if the amp can be installed after > installing all these options. > > On the purchasing side, I guess my options are purchasing from Elecraft for > $650 (which I am sure is worth the price), or buying one from someone who > bought one but never built it. I am retired now so I'm trying to spend as > little as I can. > > Please let me know if you have one that you'll sell, and if you know the > answer to the first question. > > Thanks! > Mike NJ2OM > > > > > -- > 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 mikekopacki at gmail.com Mon Apr 27 16:11:48 2020 From: mikekopacki at gmail.com (Mike Kopacki) Date: Mon, 27 Apr 2020 16:11:48 -0400 Subject: [Elecraft] K2 Looking for a KPA 100 amplifier Message-ID: Dave, I?ve looked at the KPA100 manual and I saw that it has it?s own I/O input and circuitry. But I didn?t see anything saying that the installed KAT2 would not be used. There is reference to testing the KPA100 at levels as low as 5 watts. So that tells me that the rig can still be used at QRP levels with the KPA100 installed. Is that correct? Thanks, Mike NJ2OM > On Apr 27, 2020, at 3:21 PM, Dave Van Wallaghen wrote: > From dalekretzer at comcast.net Mon Apr 27 16:29:29 2020 From: dalekretzer at comcast.net (Dale Kretzer) Date: Mon, 27 Apr 2020 13:29:29 -0700 Subject: [Elecraft] Test Message-ID: Test From dave at w8fgu.com Mon Apr 27 16:39:13 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Mon, 27 Apr 2020 20:39:13 +0000 Subject: [Elecraft] K2 Looking for a KPA 100 amplifier In-Reply-To: References: Message-ID: Mike, No, the KPA100 actually physically replaces the top cover where the KAT2 is mounted. The KAT2 is not designed to work with anything but the basic 10 watt K2 version. Yes, the K2 with KPA100 can produce anywhere from 0 - 100+ watts. The KPA100 amplifier stage is actually bypassed for the 0-11 watt power range, but no way to use the KAT2 in that configuration. Only the KAT100 ATU or similar brand that can handle 100+ watts can be used as an ATU after the KPA100. 73, Dave, W8FGU On 4/27/2020 4:11:48 PM, "Mike Kopacki" wrote: >Dave, >I?ve looked at the KPA100 manual and I saw that it has it?s own I/O input and circuitry. But I didn?t see anything saying that the installed KAT2 would not be used. There is reference to testing the KPA100 at levels as low as 5 watts. So that tells me that the rig can still be used at QRP levels with the KPA100 installed. > >Is that correct? > >Thanks, >Mike NJ2OM > >> On Apr 27, 2020, at 3:21 PM, Dave Van Wallaghen wrote: >> From donwilh at embarqmail.com Mon Apr 27 17:01:53 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 27 Apr 2020 17:01:53 -0400 Subject: [Elecraft] K2 Looking for a KPA 100 amplifier In-Reply-To: References: Message-ID: <1da0b659-c1a0-1fa5-ba18-d5a7317b4905@embarqmail.com> Mike, To amplify what Dave has said, let me make 2 points. 1) The KPA100 fits on top of the K2 in place of the QRP top cover. Anything mounted in the QRP top cover is physically replaced by the KPA100. In your case it will be the KAT2 and KIO2. The KPA100 fits physically on the top of the K2 in the same place as the QRP top cover. They cannot both occupy the same physical space. 2) If you need a tuner for your antennas, then it will need to be rated for the full power output of the 100 watt (KPA100 equipped) transceiver. The KAT100 will do that job nicely, and integrates well with the K2. If you ever plan to operate portable, then you can remove the KPA100 (6 screws) and put the QRP top cover on in its place. That will give you a more lightweight portable package. If you are hiking, the less weight, the better. 73, Don W3FPR On 4/27/2020 4:11 PM, Mike Kopacki wrote: > Dave, > I?ve looked at the KPA100 manual and I saw that it has it?s own I/O input and circuitry. But I didn?t see anything saying that the installed KAT2 would not be used. There is reference to testing the KPA100 at levels as low as 5 watts. So that tells me that the rig can still be used at QRP levels with the KPA100 installed. > > Is that correct? > > Thanks, > Mike NJ2OM > >> On Apr 27, 2020, at 3:21 PM, Dave Van Wallaghen wrote: >> From josh at voodoolab.com Mon Apr 27 17:14:14 2020 From: josh at voodoolab.com (Josh Fiden) Date: Mon, 27 Apr 2020 14:14:14 -0700 Subject: [Elecraft] Rear panel mike jack In-Reply-To: References: Message-ID: Hi Dennis, I replaced mine a few years back with Switchcraft jacks from Mouser. Unfortunately, I can't find any record of which part(s) I used. Looking at the Mouser site, I believe this is the Switchcraft series: https://www.mouser.com/datasheet/2/393/35rapc__hn2_cd-475095.pdf Just check dimensions to verify it's the right part and order the correct pin configuration (mono, stereo, switched or unswitched). Hope that helps. 73, Josh W6XU On 4/27/2020 3:37 AM, Dennis W1UE wrote: > I have a K3 with a rear panel mike jack and the rear panel Line Out jack > that have become intermittent. I can find the Line Out jack on the > Elecraft website, but not the Mike input jack. Are they the same part > number? For that matter, are all those jacks the same part number? And is > there a replacement that can be purchased from Mouser or other supplier? > > Dennis W1UE From nv4c.ian at gmail.com Mon Apr 27 18:16:14 2020 From: nv4c.ian at gmail.com (Ian Kahn) Date: Mon, 27 Apr 2020 18:16:14 -0400 Subject: [Elecraft] Test In-Reply-To: References: Message-ID: Congratulations! You passed! 73 de, Ian, NV4C On Mon, Apr 27, 2020, 4:31 PM Dale Kretzer wrote: > Test > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 dalekretzer at comcast.net Mon Apr 27 18:23:06 2020 From: dalekretzer at comcast.net (Dale Kretzer) Date: Mon, 27 Apr 2020 15:23:06 -0700 Subject: [Elecraft] Test In-Reply-To: References: Message-ID: Thanks, Ian! I'll watch for the certificate in the mail. :) On 4/27/2020 3:16 PM, Ian Kahn wrote: > Congratulations! You passed! From gdanner12 at gmail.com Mon Apr 27 18:49:58 2020 From: gdanner12 at gmail.com (Gmail - George) Date: Mon, 27 Apr 2020 18:49:58 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net><678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net><254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com><68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net><3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: <18B76AAC875B46D385681060A0E32CC1@OfficeDeskTop> It was on the 2nd phone as well! Not sure if it was one I had to draw or just identify. My recollection is that the 2nd phone was much much harder than the present Extra. My commercial licenses were 1959. My Ham license is 2007. 73 George AI4VZ -----Original Message----- From: Fred Jensen Sent: Monday, April 27, 2020 2:03 PM To: elecraft at mailman.qth.net Subject: [Elecraft] OT: The Colpitts mystery What was it with the FCC and the Colpitts oscillator schematic on the exams in the 50's/early 60's? It was on my General ['54] and Extra ['56] exams, and practically everyone else I've asked says it was on theirs too. There are other oscillator circuits of the day. Colpitts uses capacitive feedback which is somewhat more stable than a Hartley with its "Tickler Coil," but the FCC seemed fixated on the Colpitts for some reason. The schematic and operation of a dual-triode 1-shot was also popular. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/26/2020 7:28 PM, N4ZR wrote: > As for the licensing tests, did you have to draw a Colpitts > oscillator? IIRC, that was on my General exam in 1955. ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 chandlerusm at gmail.com Mon Apr 27 19:38:18 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Mon, 27 Apr 2020 18:38:18 -0500 Subject: [Elecraft] CW Note final update Message-ID: After changing the High Voltage tap to ensure my full-load HV was above the 60V recommended in the manual for the KPA500, on-air tests show my signal is now absent any ringing. bell-like or otherwise distinctive sound. It is reported as sounding perfect. Resolution of this issue involved ensuring proper supply voltage under load to the K3S as well as to the KPA. Many thanks for the help from members of this list! -- 73 de Chuck, WS1L chandlerusm at gmail.com From elanzl at sbcglobal.net Mon Apr 27 20:28:42 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Tue, 28 Apr 2020 00:28:42 +0000 (UTC) Subject: [Elecraft] April 26th, 2020 SSB Net log References: <1825155081.1325610.1588033722185.ref@mail.yahoo.com> Message-ID: <1825155081.1325610.1588033722185@mail.yahoo.com> Here is the list of stations that checked in to the Sunday Net. I want to thank the relay stations that helped out, NC0JW, Jim; K1NW, Brian; N4NRW, Roger and KO5V, Jim in New Mexico. We also have the newly created 40 m. net on 7.280 or close to it depending upon usage at 18:45 Z. The 20 meter net is on 14.303.5 at 18:00Z. All are welcome regardless of the type of radio. ? Call????????????? Name????? State?????? Radio????? Serial #?? QRP????????? NotesWB9JNZ?????????? Eric??????????????? IL??????????????????? K3??????????????? 4017????????????? ?????????????? ? Net Control?NC0JW???????????? Jim??????????????? CO???????????????? KX3?????????????? 1356????????????? ????? ??????????? Relay Statio?KB9AVO?????????? Paul????????????? IN?????????????????? K3S?????????????? 11103?????????? K8NU/7??????????? Carl?????????????? OH/WA??????? Yaesu FT?? ? ? ? ?? 2000????????????? ?WM6P????????????? Steve?????????? GA???????????????? K3S?????????????? ? 11453?????????? ??????????????????? Relay Station?KD2LFE???????????? Jeff?????????????? NM??????????????? Icom??????????? ?? 718??????????????? ??WB8PKK????????? Ken?????????????? MA?????????????Icom ????????????? 7600 kpa 500 K1NW?????????????? Brian???????????? RI?????????????????? K3???????????????? 4974????????????? ?????????????????? Relay Station??K7BRR?????????????? Bill???????????????? AZ????????????????? K3/ K3S????? 5545 / 10939?N6PGQ???????????? Bob?????????????? CA????????????????? K3???????????????? 5891????????????? ??KC1ACL??????????? Steve?????????? NM??????????????? KX3???????????????? 10677?????????? ??W1NGA?????????? Al?????????????????? CO???????????????? K3????????????????? 5765????????????? ?NC5G??????????????? George??????? TX????????????????? K2/100????????????? 2217????????????? ??KF7ZN?????????????? Ron?????????????? UT????????????????? K3S???????????? 10832?????????? ?K6WDE???????????? Dave???????????? CA????????????????? KX3????????????? ? 4599????????????? ??KO5V??????????????? Jim??????????????? NM??????????????? K2/100??????????? 7225????????????? ?????????????????? Relay StationK7JG????????????????? John???????????? WA??????????????? KX3?????????????? 3519????????????? ??W7QHD??????????? Kurt????????????? AZ????????????????? K2/100 / Kx3 1538 / 8697K5APL?????????????? Wes????????????? AR????????????????? K2??????????????? 3505????????????? ??W4DML??????????? Doug??????????? TN????????????????? K3??????????????? ? ? 6433????????????? ?NS7P???????????????? Phil??????????????? OR???????????????? K3??????????????? 1826????????????? ??KC0EMO????????? Kevin??????????? IA?????????????????? K3???????????????? ? ? 561??????????????? ??N4NRW??????????? Roger?????????? SC????????????????? K3?????????????? ? ? 1318????????????? ?W1DFB???????????? John???????????? AZ????????????????? K3????????????????? ????????????????????? ??N2ENQ???????????? Len??????????????? NJ????????????????? K3????????????????? 5270????????????? ?K4GCJ?????????????? Garry??????????? NC???????????????? K3???????????????? ? 1597????????????? ?N0MPM?????????? Mike???????????? IA?????????????????? K3S???????????????? 10514?????????? ??K6VWE???????????? Stan????????????? MI????????????????? K3???????????????? ? ? 650??????????????? ??K2VJK?????????????? Vern???????????? NY????????????????? K3S?????????????? 10151?????????? ??VE7JBT???????????? John???????????? BC????????????????? KX2???????????????? 2637????????????? ??N7BDL????????????? Terry??????????? AZ????????????????? ?? K3S ???????????? 10373?????????? ??N9SRA????????????? Steve?????????? IL??????????????????? K3S??????????????? 10563?????????? ?? ? From k2asp at kanafi.org Mon Apr 27 23:06:37 2020 From: k2asp at kanafi.org (Phil Kane) Date: Mon, 27 Apr 2020 20:06:37 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: <355d42e8-ca35-187d-5f9e-c92154752a0d@kanafi.org> On 4/27/2020 11:03 AM, Fred Jensen wrote: > What was it with the FCC and the Colpitts oscillator schematic on the > exams in the 50's/early 60's?? It was on my General ['54] and Extra > ['56] exams, and practically everyone else I've asked says it was on > theirs too.? There are other oscillator circuits of the day.? Colpitts > uses capacitive feedback which is somewhat more stable than a Hartley > with its "Tickler Coil," but the FCC seemed fixated on the Colpitts for > some reason.? The schematic and operation of a dual-triode 1-shot was > also popular. They had to pick one of the two, and the rest was inertia. The Second Telegraph exam that I took about 8 years ago had the same questions as the one that you took "back when". Who remembers "transconductance" :) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From xdavid at cis-broadband.com Mon Apr 27 23:34:35 2020 From: xdavid at cis-broadband.com (David Gilbert) Date: Mon, 27 Apr 2020 20:34:35 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <355d42e8-ca35-187d-5f9e-c92154752a0d@kanafi.org> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <355d42e8-ca35-187d-5f9e-c92154752a0d@kanafi.org> Message-ID: <273dc93d-6896-7766-7833-b8549ece3be8@cis-broadband.com> I would imagine that a lot of people still know what transconductance is.? That's how FETs work ... voltage control of current. Dave?? AB7E On 4/27/2020 8:06 PM, Phil Kane wrote: > The Second Telegraph exam that I took about 8 years ago had the same > questions as the one that you took "back when". Who remembers > "transconductance" :) > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 From kevin at ve3syb.ca Tue Apr 28 00:04:33 2020 From: kevin at ve3syb.ca (Kevin Cozens) Date: Tue, 28 Apr 2020 00:04:33 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <355d42e8-ca35-187d-5f9e-c92154752a0d@kanafi.org> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <355d42e8-ca35-187d-5f9e-c92154752a0d@kanafi.org> Message-ID: <206152c9-1a2c-a639-3b38-7f60ab89a4ac@ve3syb.ca> On 2020-04-27 11:06 p.m., Phil Kane wrote: > On 4/27/2020 11:03 AM, Fred Jensen wrote: > >> What was it with the FCC and the Colpitts oscillator schematic on the >> exams in the 50's/early 60's?? It was on my General ['54] and Extra >> ['56] exams, and practically everyone else I've asked says it was on >> theirs too.? There are other oscillator circuits of the day.? Colpitts >> uses capacitive feedback which is somewhat more stable than a Hartley [snip] > > They had to pick one of the two, and the rest was inertia. Umm... there were three main oscillator types when I was first learning electronics. Colpitts, Hartley, and Armstrong. -- 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 k2vco.vic at gmail.com Tue Apr 28 02:08:58 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 28 Apr 2020 09:08:58 +0300 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <206152c9-1a2c-a639-3b38-7f60ab89a4ac@ve3syb.ca> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <355d42e8-ca35-187d-5f9e-c92154752a0d@kanafi.org> <206152c9-1a2c-a639-3b38-7f60ab89a4ac@ve3syb.ca> Message-ID: <80ead230-6ce7-bfa7-3fcf-9afb8838dfe1@gmail.com> From rmcgraw at blomand.net Tue Apr 28 10:17:08 2020 From: rmcgraw at blomand.net (Bob McGraw K4TAX) Date: Tue, 28 Apr 2020 09:17:08 -0500 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: As a 17 year old, I rode the train {pulled by a coal fired locomotive} from Fulton, KY to Memphis, TN.? I had to walk about 8 blocks to the Post Office building where the FCC administered the tests.? I took the 4 elements and passed all 4 of them earning me a First Class Radio Telephone license on the first try.? I recall many much older folks seemingly to be struggling to take the tests.? Some commented "what's this kid doing in here?"? Seems some had taken it several times without success.? ?? I spent the night with an old maid school teacher and relative in Memphis.? I took my General class license test the next morning in the same place. ? ? The CW receiving portion, in the concrete basement with metal desks and metal chairs, sounded like marbles being dropped into a galvanized wash tub.?? So was that a T followed by an E or was that and H?? Passed that one too.? Then I rode the bus from Memphis back to my home in Martin TN.? Yes there were several circuits to identify, and some to draw, as I recall.?? That was 60 years ago.? Glad I had the experiences. 73 Bob, K4TAX From jim at w4bqp.net Tue Apr 28 10:55:31 2020 From: jim at w4bqp.net (Jim Campbell) Date: Tue, 28 Apr 2020 10:55:31 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> While in college, I co-oped with the FCC in Atlanta, GA. I had to take and pass my Radiotelephone First and General class licenses before I was allowed to administer those exams. If you did not pass a test you had to wait 30 days before you could take it again. Some applicants tried to game the system by memorizing as many questions as they could when they first took the test so it would give them a leg up the next time. On the second attempt there were usually howls of anguish when they realized they were facing a different version of the test with different questions. 73, Jim - W4BQP On 4/28/2020 10:17 AM, Bob McGraw K4TAX wrote: > As a 17 year old, I rode the train {pulled by a coal fired locomotive} > from Fulton, KY to Memphis, TN.? I had to walk about 8 blocks to the > Post Office building where the FCC administered the tests.? I took the > 4 elements and passed all 4 of them earning me a First Class Radio > Telephone license on the first try.? I recall many much older folks > seemingly to be struggling to take the tests. Some commented "what's > this kid doing in here?"? Seems some had taken it several times > without success.? ?? I spent the night with an old maid school teacher > and relative in Memphis.? I took my General class license test the > next morning in the same place. The CW receiving portion, in the > concrete basement with metal desks and metal chairs, sounded like > marbles being dropped into a galvanized wash tub.?? So was that a T > followed by an E or was that and H?? Passed that one too.? Then I rode > the bus from Memphis back to my home in Martin TN.? Yes there were > several circuits to identify, and some to draw, as I recall.?? That > was 60 years ago.? Glad I had the experiences. > > 73 > > Bob, K4TAX > From jasimmons at pinewooddata.com Tue Apr 28 11:31:20 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Tue, 28 Apr 2020 10:31:20 -0500 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> Message-ID: <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Anybody remember the Bash books? -de John NI0K Jim Campbell wrote on 4/28/2020 9:55 AM: > While in college, I co-oped with the FCC in Atlanta, GA. I had to take > and pass my Radiotelephone First and General class licenses before I > was allowed to administer those exams. If you did not pass a test you > had to wait 30 days before you could take it again. Some applicants > tried to game the system by memorizing as many questions as they could > when they first took the test so it would give them a leg up the next > time. On the second attempt there were usually howls of anguish when > they realized they were facing a different version of the test with > different questions. > > 73, > > Jim - W4BQP > > On 4/28/2020 10:17 AM, Bob McGraw K4TAX wrote: >> As a 17 year old, I rode the train {pulled by a coal fired >> locomotive} from Fulton, KY to Memphis, TN.? I had to walk about 8 >> blocks to the Post Office building where the FCC administered the >> tests.? I took the 4 elements and passed all 4 of them earning me a >> First Class Radio Telephone license on the first try.? I recall many >> much older folks seemingly to be struggling to take the tests. Some >> commented "what's this kid doing in here?"? Seems some had taken it >> several times without success.? ?? I spent the night with an old maid >> school teacher and relative in Memphis.? I took my General class >> license test the next morning in the same place. The CW receiving >> portion, in the concrete basement with metal desks and metal chairs, >> sounded like marbles being dropped into a galvanized wash tub.?? So >> was that a T followed by an E or was that and H?? Passed that one >> too.? Then I rode the bus from Memphis back to my home in Martin TN.? >> Yes there were several circuits to identify, and some to draw, as I >> recall.?? That was 60 years ago.? Glad I had the experiences. >> >> 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 jasimmons at pinewooddata.com From jimk0xu at gmail.com Tue Apr 28 11:49:20 2020 From: jimk0xu at gmail.com (Jim Rhodes) Date: Tue, 28 Apr 2020 10:49:20 -0500 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: Yes, and they changed the questions often to try to put him out of business. Now they just publish them themselves. On Tue, Apr 28, 2020, 10:32 John Simmons wrote: > Anybody remember the Bash books? > > -de John NI0K > > Jim Campbell wrote on 4/28/2020 9:55 AM: > > While in college, I co-oped with the FCC in Atlanta, GA. I had to take > > and pass my Radiotelephone First and General class licenses before I > > was allowed to administer those exams. If you did not pass a test you > > had to wait 30 days before you could take it again. Some applicants > > tried to game the system by memorizing as many questions as they could > > when they first took the test so it would give them a leg up the next > > time. On the second attempt there were usually howls of anguish when > > they realized they were facing a different version of the test with > > different questions. > > > > 73, > > > > Jim - W4BQP > > > > On 4/28/2020 10:17 AM, Bob McGraw K4TAX wrote: > >> As a 17 year old, I rode the train {pulled by a coal fired > >> locomotive} from Fulton, KY to Memphis, TN. I had to walk about 8 > >> blocks to the Post Office building where the FCC administered the > >> tests. I took the 4 elements and passed all 4 of them earning me a > >> First Class Radio Telephone license on the first try. I recall many > >> much older folks seemingly to be struggling to take the tests. Some > >> commented "what's this kid doing in here?" Seems some had taken it > >> several times without success. I spent the night with an old maid > >> school teacher and relative in Memphis. I took my General class > >> license test the next morning in the same place. The CW receiving > >> portion, in the concrete basement with metal desks and metal chairs, > >> sounded like marbles being dropped into a galvanized wash tub. So > >> was that a T followed by an E or was that and H? Passed that one > >> too. Then I rode the bus from Memphis back to my home in Martin TN. > >> Yes there were several circuits to identify, and some to draw, as I > >> recall. That was 60 years ago. Glad I had the experiences. > >> > >> 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 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 jimk0xu at gmail.com From wunder at wunderwood.org Tue Apr 28 11:59:20 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Tue, 28 Apr 2020 08:59:20 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: I didn?t know about Dick Bash?s ?The Final Exam? series at the time, but they are in The Internet Archive. If you have a question about what was on the exam in 1981, these probably have the answer. https://archive.org/search.php?query=final%20exam%20bash There are other license manuals there, too, from ARRL, Ameco, and Gordon West. The 1933 ARRL manual is the earliest. https://archive.org/search.php?query=amateur%20license%20manual wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Apr 28, 2020, at 8:31 AM, John Simmons wrote: > > Anybody remember the Bash books? > > -de John NI0K > > Jim Campbell wrote on 4/28/2020 9:55 AM: >> While in college, I co-oped with the FCC in Atlanta, GA. I had to take and pass my Radiotelephone First and General class licenses before I was allowed to administer those exams. If you did not pass a test you had to wait 30 days before you could take it again. Some applicants tried to game the system by memorizing as many questions as they could when they first took the test so it would give them a leg up the next time. On the second attempt there were usually howls of anguish when they realized they were facing a different version of the test with different questions. >> >> 73, >> >> Jim - W4BQP >> >> On 4/28/2020 10:17 AM, Bob McGraw K4TAX wrote: >>> As a 17 year old, I rode the train {pulled by a coal fired locomotive} from Fulton, KY to Memphis, TN. I had to walk about 8 blocks to the Post Office building where the FCC administered the tests. I took the 4 elements and passed all 4 of them earning me a First Class Radio Telephone license on the first try. I recall many much older folks seemingly to be struggling to take the tests. Some commented "what's this kid doing in here?" Seems some had taken it several times without success. I spent the night with an old maid school teacher and relative in Memphis. I took my General class license test the next morning in the same place. The CW receiving portion, in the concrete basement with metal desks and metal chairs, sounded like marbles being dropped into a galvanized wash tub. So was that a T followed by an E or was that and H? Passed that one too. Then I rode the bus from Memphis back to my home in Martin TN. Yes there were several circuits to identify, and some to draw, as I recall. That was 60 years ago. Glad I had the experiences. >>> >>> 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 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 wunder at wunderwood.org From kc8wh.mh at gmail.com Tue Apr 28 12:13:43 2020 From: kc8wh.mh at gmail.com (kc8wh.mh) Date: Tue, 28 Apr 2020 12:13:43 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: <5ea85637.1c69fb81.2362.e98e@mx.google.com> While I was taking the Advanced written test the phone in the room rang. The test administrator picked it up, listened a bit. Then a look of disgust appeared on his face. Then he lowered the phone, looked around the room and asked "HAS ANYBODY SEEN A BASH BOOK HERE?"? We all grinned back at him and shook our heads.He picked the phone back up said " no one has seen your Bash book" hung up the phone and we continued with our exams.Sent from my Verizon, Samsung Galaxy smartphone -------- Original message --------From: John Simmons Date: 4/28/20 11:32 AM (GMT-05:00) To: Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] OT: The Colpitts mystery Anybody remember the Bash books?-de John NI0KJim Campbell wrote on 4/28/2020 9:55 AM:> While in college, I co-oped with the FCC in Atlanta, GA. I had to take > and pass my Radiotelephone First and General class licenses before I > was allowed to administer those exams. If you did not pass a test you > had to wait 30 days before you could take it again. Some applicants > tried to game the system by memorizing as many questions as they could > when they first took the test so it would give them a leg up the next > time. On the second attempt there were usually howls of anguish when > they realized they were facing a different version of the test with > different questions.>> 73,>> Jim - W4BQP>> On 4/28/2020 10:17 AM, Bob McGraw K4TAX wrote:>> As a 17 year old, I rode the train {pulled by a coal fired >> locomotive} from Fulton, KY to Memphis, TN.? I had to walk about 8 >> blocks to the Post Office building where the FCC administered the >> tests.? I took the 4 elements and passed all 4 of them earning me a >> First Class Radio Telephone license on the first try.? I recall many >> much older folks seemingly to be struggling to take the tests. Some >> commented "what's this kid doing in here?"? Seems some had taken it >> several times without success.? ?? I spent the night with an old maid >> school teacher and relative in Memphis.? I took my General class >> license test the next morning in the same place. The CW receiving >> portion, in the concrete basement with metal desks and metal chairs, >> sounded like marbles being dropped into a galvanized wash tub.?? So >> was that a T followed by an E or was that and H?? Passed that one >> too.? Then I rode the bus from Memphis back to my home in Martin TN.? >> Yes there were several circuits to identify, and some to draw, as I >> recall.?? That was 60 years ago.? Glad I had the experiences.>>>> 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 jasimmons at pinewooddata.com ______________________________________________________________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 kc8wh.mh at gmail.com From eric_csuf at hotmail.com Tue Apr 28 12:48:23 2020 From: eric_csuf at hotmail.com (EricJ) Date: Tue, 28 Apr 2020 09:48:23 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: The FCC question pool was always published by the Government Printing Office. There were no answers though. All the study guides of the day were based on that pool including the ARRL License Manual. Except for the Novice exam, I took General (Boston), Advanced and Extra (Long Beach) at FCC offices. When I took the Novice exam in 1957, my dad was Exec Officer for the 4th Regimental Combat Team at Fort Devens, MA. He found a PFC/ham within the ranks who administered the code exam. The PFC was shaking more than I was. I don't think he wanted to fail me. They were on bivouac at the time so I took it in the guy's squad tent sitting on his locker with a J-38 strapped to my leg. FCC field offices were nicer. Eric KE6US On 4/28/2020 8:49 AM, Jim Rhodes wrote: > Yes, and they changed the questions often to try to put him out of > business. Now they just publish them themselves. > > On Tue, Apr 28, 2020, 10:32 John Simmons wrote: > >> Anybody remember the Bash books? >> >> -de John NI0K >> >> Jim Campbell wrote on 4/28/2020 9:55 AM: >>> While in college, I co-oped with the FCC in Atlanta, GA. I had to take >>> and pass my Radiotelephone First and General class licenses before I >>> was allowed to administer those exams. If you did not pass a test you >>> had to wait 30 days before you could take it again. Some applicants >>> tried to game the system by memorizing as many questions as they could >>> when they first took the test so it would give them a leg up the next >>> time. On the second attempt there were usually howls of anguish when >>> they realized they were facing a different version of the test with >>> different questions. >>> >>> 73, >>> >>> Jim - W4BQP >>> >>> On 4/28/2020 10:17 AM, Bob McGraw K4TAX wrote: >>>> As a 17 year old, I rode the train {pulled by a coal fired >>>> locomotive} from Fulton, KY to Memphis, TN. I had to walk about 8 >>>> blocks to the Post Office building where the FCC administered the >>>> tests. I took the 4 elements and passed all 4 of them earning me a >>>> First Class Radio Telephone license on the first try. I recall many >>>> much older folks seemingly to be struggling to take the tests. Some >>>> commented "what's this kid doing in here?" Seems some had taken it >>>> several times without success. I spent the night with an old maid >>>> school teacher and relative in Memphis. I took my General class >>>> license test the next morning in the same place. The CW receiving >>>> portion, in the concrete basement with metal desks and metal chairs, >>>> sounded like marbles being dropped into a galvanized wash tub. So >>>> was that a T followed by an E or was that and H? Passed that one >>>> too. Then I rode the bus from Memphis back to my home in Martin TN. >>>> Yes there were several circuits to identify, and some to draw, as I >>>> recall. That was 60 years ago. Glad I had the experiences. >>>> >>>> 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 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 jimk0xu 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 eric_csuf at hotmail.com > . From anyone1545 at gmail.com Tue Apr 28 12:55:04 2020 From: anyone1545 at gmail.com (Raymond) Date: Tue, 28 Apr 2020 10:55:04 -0600 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: Message-ID: Originally question pool was not published. The people who taught quickie courses and published exam guides did not have licenses they would take exam, fail it and report new questions. Ray W8LYJ Sent from my iPhone > On Apr 28, 2020, at 10:50, EricJ wrote: > > ?The FCC question pool was always published by the Government Printing Office. There were no answers though. All the study guides of the day were based on that pool including the ARRL License Manual. > > Except for the Novice exam, I took General (Boston), Advanced and Extra (Long Beach) at FCC offices. When I took the Novice exam in 1957, my dad was Exec Officer for the 4th Regimental Combat Team at Fort Devens, MA. He found a PFC/ham within the ranks who administered the code exam. The PFC was shaking more than I was. I don't think he wanted to fail me. They were on bivouac at the time so I took it in the guy's squad tent sitting on his locker with a J-38 strapped to my leg. FCC field offices were nicer. > > Eric KE6US > >> On 4/28/2020 8:49 AM, Jim Rhodes wrote: >> Yes, and they changed the questions often to try to put him out of >> business. Now they just publish them themselves. >> >>> On Tue, Apr 28, 2020, 10:32 John Simmons wrote: >>> >>> Anybody remember the Bash books? >>> >>> -de John NI0K >>> >>> Jim Campbell wrote on 4/28/2020 9:55 AM: >>>> While in college, I co-oped with the FCC in Atlanta, GA. I had to take >>>> and pass my Radiotelephone First and General class licenses before I >>>> was allowed to administer those exams. If you did not pass a test you >>>> had to wait 30 days before you could take it again. Some applicants >>>> tried to game the system by memorizing as many questions as they could >>>> when they first took the test so it would give them a leg up the next >>>> time. On the second attempt there were usually howls of anguish when >>>> they realized they were facing a different version of the test with >>>> different questions. >>>> >>>> 73, >>>> >>>> Jim - W4BQP >>>> >>>> On 4/28/2020 10:17 AM, Bob McGraw K4TAX wrote: >>>>> As a 17 year old, I rode the train {pulled by a coal fired >>>>> locomotive} from Fulton, KY to Memphis, TN. I had to walk about 8 >>>>> blocks to the Post Office building where the FCC administered the >>>>> tests. I took the 4 elements and passed all 4 of them earning me a >>>>> First Class Radio Telephone license on the first try. I recall many >>>>> much older folks seemingly to be struggling to take the tests. Some >>>>> commented "what's this kid doing in here?" Seems some had taken it >>>>> several times without success. I spent the night with an old maid >>>>> school teacher and relative in Memphis. I took my General class >>>>> license test the next morning in the same place. The CW receiving >>>>> portion, in the concrete basement with metal desks and metal chairs, >>>>> sounded like marbles being dropped into a galvanized wash tub. So >>>>> was that a T followed by an E or was that and H? Passed that one >>>>> too. Then I rode the bus from Memphis back to my home in Martin TN. >>>>> Yes there were several circuits to identify, and some to draw, as I >>>>> recall. That was 60 years ago. Glad I had the experiences. >>>>> >>>>> 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 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 jimk0xu 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 eric_csuf 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 anyone1545 at gmail.com From jim at w4bqp.net Tue Apr 28 13:47:41 2020 From: jim at w4bqp.net (Jim Campbell) Date: Tue, 28 Apr 2020 13:47:41 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: The time of which I speak was in the mid-1950s. As I vaguely remember there was study material that prepared you to be a knowledgeable ham. There was also a big book that prepared you technically to be a radio station engineer. At a later time there was a one-day cram course to prepare you for the exam for first phone. Before my time if you had a radiotelephone certificate you had to have a certain amount of experience working at a commercial station in order to renew your license. 73, Jim - W4BQP On 4/28/2020 11:31 AM, John Simmons wrote: > Anybody remember the Bash books? > > -de John NI0K > From ai4ns.mike at gmail.com Tue Apr 28 14:35:35 2020 From: ai4ns.mike at gmail.com (Mike Short) Date: Tue, 28 Apr 2020 13:35:35 -0500 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: I got my Novice in 1972 in Boise Idaho. I don?t remember if there was an FCC office there. Would they have gone to other cities to administer exams, or did they have VE?s by then? My dad and I both tested together. Mike AI4NS On Tue, Apr 28, 2020 at 12:49 Jim Campbell wrote: > The time of which I speak was in the mid-1950s. As I vaguely remember > there was study material that prepared you to be a knowledgeable ham. > There was also a big book that prepared you technically to be a radio > station engineer. At a later time there was a one-day cram course to > prepare you for the exam for first phone. Before my time if you had a > radiotelephone certificate you had to have a certain amount of > experience working at a commercial station in order to renew your license. > > 73, > > Jim - W4BQP > > On 4/28/2020 11:31 AM, John Simmons wrote: > > Anybody remember the Bash books? > > > > -de John NI0K > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w6jhb at me.com Tue Apr 28 15:01:04 2020 From: w6jhb at me.com (James Bennett) Date: Tue, 28 Apr 2020 12:01:04 -0700 Subject: [Elecraft] KX2 / KPA500 Message-ID: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> I?ve run into an interesting situation that has me puzzled. Probably some dumb pilot error, but after an hour or so looking through the manuals and thinking about it - I gotta call in the experts. I?ve had a K3 for ten years and the KPA500/KAT500 for maybe four or five years. They work great. I also have a KX2 and thought ?why not hook it to the KPA500 and give it some punch when I need it??. Since my antenna connects through a coax switch between the K3 and the KX2, the output of the KX2 has been flowing through the KPA500/KAT500 since day one, although never being amplified. I set the KX2 ATU to bypass and do a ?tune? on the KAT500 - finds a nice 1:1 match. Keying the KX2 with the amp in standby gives me 10w out on the KX2. Now, with a station tuned in that is say, S8 on the KX2, when I put the amp into operate mode, the received signal strength drops about six S-units. Going back to standby on the amp restores full receive strength. I have pressed the proper band switch on the amp. When I have the amp in operate mode and transmit, I get about 190 watts out, with an SWR of 1:1. By the way - the K3 IS connected to the amp as it normally is, but powered off. So, it seems like the amp is not sensing the RF frequency coming out of the KX2 - but why? Jim / W6JHB From jim at audiosystemsgroup.com Tue Apr 28 15:06:38 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 28 Apr 2020 12:06:38 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: <46478fc6-e719-7b3e-0985-60b69560292d@audiosystemsgroup.com> On 4/28/2020 7:17 AM, Bob McGraw K4TAX wrote: > That was 60 years ago. Great story, Bob. I grew up in Huntington, WV, and took the exams on the 4 times a year visits to Charleston by the examiner. It was a long narrow room in the basement of a federal building there, with 40 desks and a center aisle. A paper tape and audio oscillator sent CW. Applicants filed in, took the CW exam, and those who weren't in the first two rows filed out, because the sound echoed through the room. I failed there twice, finally passed it in Washington, DC in the office there. My folks worked for the C&O Ry, and were able to get me a pass on the mainline, which ran through Huntington to DC. I stayed overnight with an uncle and aunt who lived there. I was 15. I passed the Extra and First Phone in Cincinnati at the office there three years later. 73, Jim K9YC From va3mw at portcredit.net Tue Apr 28 15:12:41 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 28 Apr 2020 15:12:41 -0400 Subject: [Elecraft] KX2 / KPA500 In-Reply-To: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> References: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> Message-ID: James What happens if you unplug the PTT lead from the KPA500? Does your receive return? Mike va3mw On Tue, Apr 28, 2020 at 3:02 PM James Bennett via Elecraft < elecraft at mailman.qth.net> wrote: > I?ve run into an interesting situation that has me puzzled. Probably some > dumb pilot error, but after an hour or so looking through the manuals and > thinking about it - I gotta call in the experts. > > I?ve had a K3 for ten years and the KPA500/KAT500 for maybe four or five > years. They work great. I also have a KX2 and thought ?why not hook it to > the KPA500 and give it some punch when I need it??. Since my antenna > connects through a coax switch between the K3 and the KX2, the output of > the KX2 has been flowing through the KPA500/KAT500 since day one, although > never being amplified. I set the KX2 ATU to bypass and do a ?tune? on the > KAT500 - finds a nice 1:1 match. Keying the KX2 with the amp in standby > gives me 10w out on the KX2. > > Now, with a station tuned in that is say, S8 on the KX2, when I put the > amp into operate mode, the received signal strength drops about six > S-units. Going back to standby on the amp restores full receive strength. I > have pressed the proper band switch on the amp. When I have the amp in > operate mode and transmit, I get about 190 watts out, with an SWR of 1:1. > > By the way - the K3 IS connected to the amp as it normally is, but powered > off. > > So, it seems like the amp is not sensing the RF frequency coming out of > the KX2 - but why? > > Jim / W6JHB > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 a.durbin at msn.com Tue Apr 28 15:35:30 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 28 Apr 2020 19:35:30 +0000 Subject: [Elecraft] KX2 / KPA500 Message-ID: "So, it seems like the amp is not sensing the RF frequency coming out of the KX2 - but why?" If the KPA500 is sensing RF frequency it will display the appropriate band on its display. Does it? Loss of RX signal could be caused by failure of the KPA500 T/R switch or it could always be selected to TX. Check for the keyed indicator (an asterisk on the left side of the KPA500 display). It is only displayed when keyed and in OPER mode. 73, Andy, k3wyc From k5atg.aaron at gmail.com Tue Apr 28 16:22:46 2020 From: k5atg.aaron at gmail.com (Aaron K5ATG) Date: Tue, 28 Apr 2020 15:22:46 -0500 Subject: [Elecraft] K2 PA Message-ID: I just replaced the PA's on my K2. I replaced Q7, Q8, Q11, Q13 with parts from the Elecraft PA Replacement Kit. I have done this in the past with no problems. Power is supplied from a switching power supply that supplies power to a power distribution box that has a fuse for each output. This distribution box supplies power to a small 2 meter 70cm mobile/base radio and a LED light strip. This setup has been working with no trouble for a while. Now as soon as I plug in the power cord to the K2 all of the power coming from the distribution box shuts off. I used the same power cord on two other radios and it worked just fine. So the problem lies in the K2. While working on the K2 I messed with replacing only the parts mentioned above. I went over the PA's with a magnifying glass looking for solder bridges and other faults and could not find any. This problem did not exist before I changed the PA's. I would appreciate any ideas as to what may be the problem. Aaron K5ATG From nr4c at widomaker.com Tue Apr 28 16:48:10 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 28 Apr 2020 16:48:10 -0400 Subject: [Elecraft] KX2 / KPA500 In-Reply-To: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> References: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> Message-ID: <4C0436AA-6663-4538-8419-8691D0A2E9F2@widomaker.com> First thing I?d try is to connect the KX2 directly to the amp and see what happens. Then work out your switches. Also, if you have tuned the KAT500 with the K3, it?s not necessary to retune with the KX2. Just By-Pass it?s tuner and go. Same antenna, right - same amp. Sent from my iPhone ...nr4c. bill > On Apr 28, 2020, at 3:03 PM, James Bennett via Elecraft wrote: > > ?I?ve run into an interesting situation that has me puzzled. Probably some dumb pilot error, but after an hour or so looking through the manuals and thinking about it - I gotta call in the experts. > > I?ve had a K3 for ten years and the KPA500/KAT500 for maybe four or five years. They work great. I also have a KX2 and thought ?why not hook it to the KPA500 and give it some punch when I need it??. Since my antenna connects through a coax switch between the K3 and the KX2, the output of the KX2 has been flowing through the KPA500/KAT500 since day one, although never being amplified. I set the KX2 ATU to bypass and do a ?tune? on the KAT500 - finds a nice 1:1 match. Keying the KX2 with the amp in standby gives me 10w out on the KX2. > > Now, with a station tuned in that is say, S8 on the KX2, when I put the amp into operate mode, the received signal strength drops about six S-units. Going back to standby on the amp restores full receive strength. I have pressed the proper band switch on the amp. When I have the amp in operate mode and transmit, I get about 190 watts out, with an SWR of 1:1. > > By the way - the K3 IS connected to the amp as it normally is, but powered off. > > So, it seems like the amp is not sensing the RF frequency coming out of the KX2 - but why? > > Jim / W6JHB > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 david.n5dch at gmail.com Tue Apr 28 17:31:20 2020 From: david.n5dch at gmail.com (David Herring) Date: Tue, 28 Apr 2020 15:31:20 -0600 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: I remember in 1976 getting my novice ticket and the test was administered by the local club officers (same 3 guys who taught the class), but in 1977-ish I had to go to the FCC field office in San Diego (the closest one to me at the time) to take the General tests. I guess they could give novice tests but not much of anything else. I was young then and really didn?t concern myself with the details. ;-) 73, David - N5DCH > On Apr 28, 2020, at 12:35 PM, Mike Short wrote: > > I got my Novice in 1972 in Boise Idaho. I don?t remember if there was an > FCC office there. Would they have gone to other cities to administer exams, > or did they have VE?s by then? My dad and I both tested together. > Mike > AI4NS > > On Tue, Apr 28, 2020 at 12:49 Jim Campbell wrote: > >> The time of which I speak was in the mid-1950s. As I vaguely remember >> there was study material that prepared you to be a knowledgeable ham. >> There was also a big book that prepared you technically to be a radio >> station engineer. At a later time there was a one-day cram course to >> prepare you for the exam for first phone. Before my time if you had a >> radiotelephone certificate you had to have a certain amount of >> experience working at a commercial station in order to renew your license. >> >> 73, >> >> Jim - W4BQP >> >> On 4/28/2020 11:31 AM, John Simmons wrote: >>> Anybody remember the Bash books? >>> >>> -de John NI0K >>> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w6jhb at me.com Tue Apr 28 17:47:44 2020 From: w6jhb at me.com (James Bennett) Date: Tue, 28 Apr 2020 14:47:44 -0700 Subject: [Elecraft] KX2 / KPA500 In-Reply-To: References: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> <72E8C1CF-C4B6-43CE-BABB-2B5B366B5C42@me.com> Message-ID: <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> Hi Mark, In one of the books I have (or had), possibly the Fred Cady KX3 book, there was a diagram of connecting a KX3 along with a K3 to a KPA500/KAT500. The diagram had a splitter in use for the key line, as I recall. And when I had my KX3 that was exactly what I did, and it worked fine. There is no reason, as far as I know, why the two cannot be connected together, provided the key line interrupt device is present if one is using the KPAK3AUX cable. I looked in my parts bin and found one of those interrupters just a few minutes ago. I disconnected the KPAK3AUX cable and inserted the interrupter at the back of the KPA500, then put the KPAK3AUX cable into it. Now, when I put the KPA500 into Operate mode, the RX level on the KX2 remains unchanged, so there was progress! Keying the KX2 now triggers the amp to do its thing when in Operate mode. I?ve got to go back and dig up my RCA splitter so I can reconnect the Key out line from the K3. If Jack W6FB is monitoring this thread, perhaps he can chime in on the issue of having both radio?s key out lines tied together via a splitter. BTW - I NEVER have both powered on at the same time. 73, Jim / W6JHB > On Apr 28, 2020, at 1:51 PM, Mark Goldberg wrote: > > You should not have the KX2 and K3 connected to the KPA500 PTT in at the same time. I think you need to disconnect the KPAK3AUX or put in a switch, not a splitter that keeps them connected at the same time. Your K3 is keeping the amp in TX. It should only be controlled by the KX2. > > 73, > > Mark > W7MLG > > > On Tue, Apr 28, 2020 at 1:28 PM James Bennett > wrote: > Hi Mark, > > Yes, I have the KX2ACBL accessory cable in line. That allows me to run the KX2 Ground and Key Out connections (ring 2) through another cable over to the KPA500 where it is plugged into the PA Key jack. > > I do not have a key out connection from the K3 to the KPA - I?m using the ?enhanced? band switching with the KPAK3AUX cable. And while I was reading up on this stuff a few minutes ago I did an experiment. I powered up the K3 then put the amp into operate mode. The KX2 receive signal level did not drop. So, it appears that when the K3 is off, it pulls that connection in the KPAK3AUX cable to ground. I used to have a KX3 a million years ago and I sort of remember having to run the key out cable from the K3 to a RCA splitter - one connection to the amp and the other to the KX3, along with a key line inhibit ?thing? between the K3 cable and the amp. Now I just have to find where it is. Won?t be a happy camper if I can?t find it? > > Thanks for your input - I ?think" I?m on the right track. > > 73, Jim / W6JHB > >> On Apr 28, 2020, at 12:57 PM, Mark Goldberg > wrote: >> >> Do you have the PTT In on the KPA500 connected to the ACC Out Ring2 as shown on page 9 of the KX2 manual? If you use a stereo cable, it will be shorted to ground and always have the amp in TX, which would result in what you are seeing. >> >> Did you disconnect the K3 key out from the KPA500? The KPA500 senses frequency to determine which band, but it still needs the PTT (key out) signal to tell it if it should be in TX or RX mode and that key out has to come from the radio transmitting. I have my KX3 connected to the KPA500 in a simlar fashion and disconnect the key out to tune with a couple watts, then connect it to operate. >> >> 73, >> >> Mark >> W7MLG >> >> On Tue, Apr 28, 2020 at 12:02 PM James Bennett via Elecraft > wrote: >> I?ve run into an interesting situation that has me puzzled. Probably some dumb pilot error, but after an hour or so looking through the manuals and thinking about it - I gotta call in the experts. >> >> I?ve had a K3 for ten years and the KPA500/KAT500 for maybe four or five years. They work great. I also have a KX2 and thought ?why not hook it to the KPA500 and give it some punch when I need it??. Since my antenna connects through a coax switch between the K3 and the KX2, the output of the KX2 has been flowing through the KPA500/KAT500 since day one, although never being amplified. I set the KX2 ATU to bypass and do a ?tune? on the KAT500 - finds a nice 1:1 match. Keying the KX2 with the amp in standby gives me 10w out on the KX2. >> >> Now, with a station tuned in that is say, S8 on the KX2, when I put the amp into operate mode, the received signal strength drops about six S-units. Going back to standby on the amp restores full receive strength. I have pressed the proper band switch on the amp. When I have the amp in operate mode and transmit, I get about 190 watts out, with an SWR of 1:1. >> >> By the way - the K3 IS connected to the amp as it normally is, but powered off. >> >> So, it seems like the amp is not sensing the RF frequency coming out of the KX2 - but why? >> >> Jim / W6JHB >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 voerman at att.net Tue Apr 28 18:15:42 2020 From: voerman at att.net (Lou Voerman W2ROW) Date: Tue, 28 Apr 2020 15:15:42 -0700 (MST) Subject: [Elecraft] K2 PA In-Reply-To: References: Message-ID: <1588112142982-0.post@n2.nabble.com> Hi, Did you do the resistance check on page 76 of the latest manual. It checks for a short from the collector of Q7 or Q8 to ground after installing the heat sink. If there is a short there, the manual suggests the most likely cause. Lou W2ROW -- Sent from: http://elecraft.365791.n2.nabble.com/ From dave at w8fgu.com Tue Apr 28 18:19:44 2020 From: dave at w8fgu.com (Dave Van Wallaghen) Date: Tue, 28 Apr 2020 18:19:44 -0400 Subject: [Elecraft] K2 PA In-Reply-To: <1588112142982-0.post@n2.nabble.com> References: <1588112142982-0.post@n2.nabble.com> Message-ID: <171c2dfe000.2852.96e80410205cf590e45b6250d389e5fb@w8fgu.com> Aaron, Are you stating that with the K2 power switch in the OFF position and simply plugging the power cord into the rear power jack, causes the supply to shut down? 73, Dave, W8FGU On April 28, 2020 18:16:47 Lou Voerman W2ROW wrote: > Hi, > > Did you do the resistance check on page 76 of the latest manual. It checks > for a short from the collector of Q7 or Q8 to ground after installing the > heat sink. If there is a short there, the manual suggests the most likely > cause. > > Lou W2ROW > > > > -- > 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 puckrat at seanet.com Tue Apr 28 18:46:46 2020 From: puckrat at seanet.com (puckrat at seanet.com) Date: Tue, 28 Apr 2020 15:46:46 -0700 (PDT) Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: <63117.50.34.205.98.1588114006.squirrel@wm.seanet.com> I took my First Phone exam at the Seattle FCC office in the early 70's. You had to pass the elements for the 2nd before they would administer the first class elements. I distinctly remember a schematic of a mobile power supply with various questions on the test I had. The thread reminded me that a bunch of students from a local broadcast school came in just before we started and announced that they were there to take "the test". The proctor asked "which test?" and they immediately went in to panic mode. After several phone calls they determined it was the 3rd class radiotelephone. ;-) de K7KG > The time of which sI peak was in the mid-1950s. As I vaguely remember there was study material that prepared you to be a knowledgeable ham. There was also a big book that prepared you technically to be a radio station engineer. At a later time there was a one-day cram course to prepare you for the exam for first phone. Before my time if you had a radiotelephone certificate you had to have a certain amount of > experience working at a commercial station in order to renew your license. > > 73, > > Jim - W4BQP > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to puckrat at seanet.com > From jim at audiosystemsgroup.com Tue Apr 28 19:03:47 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 28 Apr 2020 16:03:47 -0700 Subject: [Elecraft] KX2 / KPA500 In-Reply-To: <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> References: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> <72E8C1CF-C4B6-43CE-BABB-2B5B366B5C42@me.com> <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> Message-ID: On 4/28/2020 2:47 PM, James Bennett via Elecraft wrote: > connecting a KX3 along with a K3 to a KPA500/KAT500. The diagram had a splitter in use for the key line, as I recall. Yes. I've done that for years with K3 feeding KPA500 and tube amp (first Ten Tec 425, now 87A and KPA1500). I use relays to switch coax ins and outs. 73, Jim K9YC From eric_csuf at hotmail.com Tue Apr 28 19:16:09 2020 From: eric_csuf at hotmail.com (EricJ) Date: Tue, 28 Apr 2020 16:16:09 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: Any General Class ham could administer the Novice test.? The FCC field offices initially administered the testing, but some time in the mid-50s it was given over to volunteer hams. It could be anyone you could dig up to sign the paperwork. There were no designated VEs at the time. I don't remember the details, but for those who could not go to an FCC field office for the General (disability, too far, etc.), they could get a waiver and get a Conditional License. That was also administered by a local ham, but it might have required more than one to sign off. Same privileges as a General Class. There might have been some limitations on renewals, but I don't remember them. Eric KE6US On 4/28/2020 11:35 AM, Mike Short wrote: > I got my Novice in 1972 in Boise Idaho. I don?t remember if there was an > FCC office there. Would they have gone to other cities to administer exams, > or did they have VE?s by then? My dad and I both tested together. > Mike > AI4NS > > On Tue, Apr 28, 2020 at 12:49 Jim Campbell wrote: > >> The time of which I speak was in the mid-1950s. As I vaguely remember >> there was study material that prepared you to be a knowledgeable ham. >> There was also a big book that prepared you technically to be a radio >> station engineer. At a later time there was a one-day cram course to >> prepare you for the exam for first phone. Before my time if you had a >> radiotelephone certificate you had to have a certain amount of >> experience working at a commercial station in order to renew your license. >> >> 73, >> >> Jim - W4BQP >> >> On 4/28/2020 11:31 AM, John Simmons wrote: >>> Anybody remember the Bash books? >>> >>> -de John NI0K >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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_csuf at hotmail.com From jackbrindle at me.com Tue Apr 28 19:21:26 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 28 Apr 2020 16:21:26 -0700 Subject: [Elecraft] KX2 / KPA500 In-Reply-To: <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> References: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> <72E8C1CF-C4B6-43CE-BABB-2B5B366B5C42@me.com> <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> Message-ID: <1CCC0D6D-602A-4F39-A149-324CDD96BCF0@me.com> Jim; Disconnect the AUX IO cable from the KPA and try it again with the KX2. Does it have band it likes to stay on? (I?m thinking 60 meters here). 73! Jack, W6FB > On Apr 28, 2020, at 2:47 PM, James Bennett via Elecraft wrote: > > Hi Mark, > > In one of the books I have (or had), possibly the Fred Cady KX3 book, there was a diagram of connecting a KX3 along with a K3 to a KPA500/KAT500. The diagram had a splitter in use for the key line, as I recall. And when I had my KX3 that was exactly what I did, and it worked fine. There is no reason, as far as I know, why the two cannot be connected together, provided the key line interrupt device is present if one is using the KPAK3AUX cable. > > I looked in my parts bin and found one of those interrupters just a few minutes ago. I disconnected the KPAK3AUX cable and inserted the interrupter at the back of the KPA500, then put the KPAK3AUX cable into it. Now, when I put the KPA500 into Operate mode, the RX level on the KX2 remains unchanged, so there was progress! Keying the KX2 now triggers the amp to do its thing when in Operate mode. I?ve got to go back and dig up my RCA splitter so I can reconnect the Key out line from the K3. > > If Jack W6FB is monitoring this thread, perhaps he can chime in on the issue of having both radio?s key out lines tied together via a splitter. BTW - I NEVER have both powered on at the same time. > > 73, Jim / W6JHB > > > >> On Apr 28, 2020, at 1:51 PM, Mark Goldberg wrote: >> >> You should not have the KX2 and K3 connected to the KPA500 PTT in at the same time. I think you need to disconnect the KPAK3AUX or put in a switch, not a splitter that keeps them connected at the same time. Your K3 is keeping the amp in TX. It should only be controlled by the KX2. >> >> 73, >> >> Mark >> W7MLG >> >> >> On Tue, Apr 28, 2020 at 1:28 PM James Bennett > wrote: >> Hi Mark, >> >> Yes, I have the KX2ACBL accessory cable in line. That allows me to run the KX2 Ground and Key Out connections (ring 2) through another cable over to the KPA500 where it is plugged into the PA Key jack. >> >> I do not have a key out connection from the K3 to the KPA - I?m using the ?enhanced? band switching with the KPAK3AUX cable. And while I was reading up on this stuff a few minutes ago I did an experiment. I powered up the K3 then put the amp into operate mode. The KX2 receive signal level did not drop. So, it appears that when the K3 is off, it pulls that connection in the KPAK3AUX cable to ground. I used to have a KX3 a million years ago and I sort of remember having to run the key out cable from the K3 to a RCA splitter - one connection to the amp and the other to the KX3, along with a key line inhibit ?thing? between the K3 cable and the amp. Now I just have to find where it is. Won?t be a happy camper if I can?t find it? >> >> Thanks for your input - I ?think" I?m on the right track. >> >> 73, Jim / W6JHB >> >>> On Apr 28, 2020, at 12:57 PM, Mark Goldberg > wrote: >>> >>> Do you have the PTT In on the KPA500 connected to the ACC Out Ring2 as shown on page 9 of the KX2 manual? If you use a stereo cable, it will be shorted to ground and always have the amp in TX, which would result in what you are seeing. >>> >>> Did you disconnect the K3 key out from the KPA500? The KPA500 senses frequency to determine which band, but it still needs the PTT (key out) signal to tell it if it should be in TX or RX mode and that key out has to come from the radio transmitting. I have my KX3 connected to the KPA500 in a simlar fashion and disconnect the key out to tune with a couple watts, then connect it to operate. >>> >>> 73, >>> >>> Mark >>> W7MLG >>> >>> On Tue, Apr 28, 2020 at 12:02 PM James Bennett via Elecraft > wrote: >>> I?ve run into an interesting situation that has me puzzled. Probably some dumb pilot error, but after an hour or so looking through the manuals and thinking about it - I gotta call in the experts. >>> >>> I?ve had a K3 for ten years and the KPA500/KAT500 for maybe four or five years. They work great. I also have a KX2 and thought ?why not hook it to the KPA500 and give it some punch when I need it??. Since my antenna connects through a coax switch between the K3 and the KX2, the output of the KX2 has been flowing through the KPA500/KAT500 since day one, although never being amplified. I set the KX2 ATU to bypass and do a ?tune? on the KAT500 - finds a nice 1:1 match. Keying the KX2 with the amp in standby gives me 10w out on the KX2. >>> >>> Now, with a station tuned in that is say, S8 on the KX2, when I put the amp into operate mode, the received signal strength drops about six S-units. Going back to standby on the amp restores full receive strength. I have pressed the proper band switch on the amp. When I have the amp in operate mode and transmit, I get about 190 watts out, with an SWR of 1:1. >>> >>> By the way - the K3 IS connected to the amp as it normally is, but powered off. >>> >>> So, it seems like the amp is not sensing the RF frequency coming out of the KX2 - but why? >>> >>> Jim / W6JHB >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 jackbrindle at me.com From jackbrindle at me.com Tue Apr 28 19:48:13 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 28 Apr 2020 16:48:13 -0700 Subject: [Elecraft] KX2 / KPA500 In-Reply-To: <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> References: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> <72E8C1CF-C4B6-43CE-BABB-2B5B366B5C42@me.com> <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> Message-ID: <5F27C567-0623-47AA-B0F8-7E590E5E4E09@me.com> I went back and reread this . My question is this - with the interrupter in place, does the K3 still key the amplifier? I suspect you are running into the issue of pull-ups on the K3 pulling the PTT signal up to Vcc. Of course Vcc when the K3 is off is 0 volts, which causes the KPA to key. We see the same issue with the BAND lines, which is why the KPA500 switches to 60 meters shortly after the K3 is powered off. So, I?m wondering what is going on also. More details and tests should resolve the questions. 73! Jack, W6FB > On Apr 28, 2020, at 2:47 PM, James Bennett via Elecraft wrote: > > Hi Mark, > > In one of the books I have (or had), possibly the Fred Cady KX3 book, there was a diagram of connecting a KX3 along with a K3 to a KPA500/KAT500. The diagram had a splitter in use for the key line, as I recall. And when I had my KX3 that was exactly what I did, and it worked fine. There is no reason, as far as I know, why the two cannot be connected together, provided the key line interrupt device is present if one is using the KPAK3AUX cable. > > I looked in my parts bin and found one of those interrupters just a few minutes ago. I disconnected the KPAK3AUX cable and inserted the interrupter at the back of the KPA500, then put the KPAK3AUX cable into it. Now, when I put the KPA500 into Operate mode, the RX level on the KX2 remains unchanged, so there was progress! Keying the KX2 now triggers the amp to do its thing when in Operate mode. I?ve got to go back and dig up my RCA splitter so I can reconnect the Key out line from the K3. > > If Jack W6FB is monitoring this thread, perhaps he can chime in on the issue of having both radio?s key out lines tied together via a splitter. BTW - I NEVER have both powered on at the same time. > > 73, Jim / W6JHB > > > >> On Apr 28, 2020, at 1:51 PM, Mark Goldberg > wrote: >> >> You should not have the KX2 and K3 connected to the KPA500 PTT in at the same time. I think you need to disconnect the KPAK3AUX or put in a switch, not a splitter that keeps them connected at the same time. Your K3 is keeping the amp in TX. It should only be controlled by the KX2. >> >> 73, >> >> Mark >> W7MLG >> >> >> On Tue, Apr 28, 2020 at 1:28 PM James Bennett >> wrote: >> Hi Mark, >> >> Yes, I have the KX2ACBL accessory cable in line. That allows me to run the KX2 Ground and Key Out connections (ring 2) through another cable over to the KPA500 where it is plugged into the PA Key jack. >> >> I do not have a key out connection from the K3 to the KPA - I?m using the ?enhanced? band switching with the KPAK3AUX cable. And while I was reading up on this stuff a few minutes ago I did an experiment. I powered up the K3 then put the amp into operate mode. The KX2 receive signal level did not drop. So, it appears that when the K3 is off, it pulls that connection in the KPAK3AUX cable to ground. I used to have a KX3 a million years ago and I sort of remember having to run the key out cable from the K3 to a RCA splitter - one connection to the amp and the other to the KX3, along with a key line inhibit ?thing? between the K3 cable and the amp. Now I just have to find where it is. Won?t be a happy camper if I can?t find it? >> >> Thanks for your input - I ?think" I?m on the right track. >> >> 73, Jim / W6JHB >> >>> On Apr 28, 2020, at 12:57 PM, Mark Goldberg >> wrote: >>> >>> Do you have the PTT In on the KPA500 connected to the ACC Out Ring2 as shown on page 9 of the KX2 manual? If you use a stereo cable, it will be shorted to ground and always have the amp in TX, which would result in what you are seeing. >>> >>> Did you disconnect the K3 key out from the KPA500? The KPA500 senses frequency to determine which band, but it still needs the PTT (key out) signal to tell it if it should be in TX or RX mode and that key out has to come from the radio transmitting. I have my KX3 connected to the KPA500 in a simlar fashion and disconnect the key out to tune with a couple watts, then connect it to operate. >>> >>> 73, >>> >>> Mark >>> W7MLG >>> >>> On Tue, Apr 28, 2020 at 12:02 PM James Bennett via Elecraft >> wrote: >>> I?ve run into an interesting situation that has me puzzled. Probably some dumb pilot error, but after an hour or so looking through the manuals and thinking about it - I gotta call in the experts. >>> >>> I?ve had a K3 for ten years and the KPA500/KAT500 for maybe four or five years. They work great. I also have a KX2 and thought ?why not hook it to the KPA500 and give it some punch when I need it??. Since my antenna connects through a coax switch between the K3 and the KX2, the output of the KX2 has been flowing through the KPA500/KAT500 since day one, although never being amplified. I set the KX2 ATU to bypass and do a ?tune? on the KAT500 - finds a nice 1:1 match. Keying the KX2 with the amp in standby gives me 10w out on the KX2. >>> >>> Now, with a station tuned in that is say, S8 on the KX2, when I put the amp into operate mode, the received signal strength drops about six S-units. Going back to standby on the amp restores full receive strength. I have pressed the proper band switch on the amp. When I have the amp in operate mode and transmit, I get about 190 watts out, with an SWR of 1:1. >>> >>> By the way - the K3 IS connected to the amp as it normally is, but powered off. >>> >>> So, it seems like the amp is not sensing the RF frequency coming out of the KX2 - but why? >>> >>> Jim / W6JHB >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >>> Help: http://mailman.qth.net/mmfaq.htm > >>> Post: mailto:Elecraft at mailman.qth.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 jackbrindle at me.com From chandlerusm at gmail.com Tue Apr 28 20:10:02 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Tue, 28 Apr 2020 19:10:02 -0500 Subject: [Elecraft] Mail for Windows 10 Message-ID: After reviewing several of my recent emails that came to the list as blank emails, and seeing a few of those every few days on this list from others, I am beginning to think the listserv here is configured to reject HTML Mail. The shack computer has Mail for Windows 10 on it, and that was used for a few emails recently. I also used my phone, and another computer where I was using the G-Mail web interface. But, the shack PC and it's Mail for Windows 10 seems to be the one that delivered empty or blank emails to the list. Can an administrator of the list (or someone knowledgeable about the reflector) advise if this list rejects HTML Mail? That appears to be the only format used by Mail for Windows 10. Alternatively, has anyone had success using Mail for Windows 10 for posting to this list? M4W10 settings don't show any send format controls, and a web search showed nothing but a series of complaints about the lack of plain text sending from 3 years back. -- 73 de Chuck, WS1L chandlerusm at gmail.com From marklgoldberg at gmail.com Tue Apr 28 20:33:12 2020 From: marklgoldberg at gmail.com (Mark Goldberg) Date: Tue, 28 Apr 2020 17:33:12 -0700 Subject: [Elecraft] KX2 / KPA500 In-Reply-To: <5F27C567-0623-47AA-B0F8-7E590E5E4E09@me.com> References: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> <72E8C1CF-C4B6-43CE-BABB-2B5B366B5C42@me.com> <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> <5F27C567-0623-47AA-B0F8-7E590E5E4E09@me.com> Message-ID: My confusion is connecting the KPA500 to both the KX2 and K3 at the same time. I use my KPA500 with two different radios, but it is only connected to one of them at a time. In my case it is: RF, RS232 and PTT in from my TS-590S OR RF, and PTT in from my KX3 I assumed that pull ups / downs when units are not powered up would mess things up and they are not designed to be wired ored, especially when not powered up. Since I don't have a K3, I don't know how it connects up. 73, Mark W7MLG On Tue, Apr 28, 2020 at 4:48 PM Jack Brindle via Elecraft < elecraft at mailman.qth.net> wrote: > I went back and reread this . My question is this - with the interrupter > in place, does the K3 still key the amplifier? > > I suspect you are running into the issue of pull-ups on the K3 pulling the > PTT signal up to Vcc. Of course Vcc when the K3 is off is 0 volts, which > causes the KPA to key. > We see the same issue with the BAND lines, which is why the KPA500 > switches to 60 meters shortly after the K3 is powered off. > > So, I?m wondering what is going on also. More details and tests should > resolve the questions. > > 73! > Jack, W6FB From W2xj at w2xj.net Tue Apr 28 20:40:20 2020 From: W2xj at w2xj.net (W2xj) Date: Tue, 28 Apr 2020 20:40:20 -0400 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: References: Message-ID: <9CF32CFB-A309-4F21-8F98-0A1C7BF1B75B@w2xj.net> the vast majority of list servers strip HTML. Sent from my iPad > On Apr 28, 2020, at 8:11 PM, Chuck Chandler wrote: > > ?After reviewing several of my recent emails that came to the list as blank > emails, and seeing a few of those every few days on this list from others, > I am beginning to think the listserv here is configured to reject HTML > Mail. The shack computer has Mail for Windows 10 on it, and that was used > for a few emails recently. I also used my phone, and another > computer where I was using the G-Mail web interface. But, the shack PC and > it's Mail for Windows 10 seems to be the one that delivered empty or blank > emails to the list. > > Can an administrator of the list (or someone knowledgeable about the > reflector) advise if this list rejects HTML Mail? That appears to be the > only format used by Mail for Windows 10. > > Alternatively, has anyone had success using Mail for Windows 10 for posting > to this list? M4W10 settings don't show any send format controls, and a > web search showed nothing but a series of complaints about the lack of > plain text sending from 3 years back. > > -- > 73 de Chuck, WS1L > > chandlerusm 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 nr4c at widomaker.com Tue Apr 28 21:36:44 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 28 Apr 2020 21:36:44 -0400 Subject: [Elecraft] KX2 / KPA500 In-Reply-To: References: Message-ID: I?m not sure what connections are made between each radio and the amp and the other radio. Sent from my iPhone ...nr4c. bill > On Apr 28, 2020, at 8:35 PM, Mark Goldberg wrote: > > ?My confusion is connecting the KPA500 to both the KX2 and K3 at the same > time. I use my KPA500 with two different radios, but it is only connected > to one of them at a time. In my case it is: > > RF, RS232 and PTT in from my TS-590S > OR > RF, and PTT in from my KX3 > > I assumed that pull ups / downs when units are not powered up would mess > things up and they are not designed to be wired ored, especially when not > powered up. Since I don't have a K3, I don't know how it connects up. > > 73, > > Mark > W7MLG > > >> On Tue, Apr 28, 2020 at 4:48 PM Jack Brindle via Elecraft < >> elecraft at mailman.qth.net> wrote: >> >> I went back and reread this . My question is this - with the interrupter >> in place, does the K3 still key the amplifier? >> >> I suspect you are running into the issue of pull-ups on the K3 pulling the >> PTT signal up to Vcc. Of course Vcc when the K3 is off is 0 volts, which >> causes the KPA to key. >> We see the same issue with the BAND lines, which is why the KPA500 >> switches to 60 meters shortly after the K3 is powered off. >> >> So, I?m wondering what is going on also. More details and tests should >> resolve the questions. >> >> 73! >> Jack, W6FB > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Tue Apr 28 21:46:51 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Tue, 28 Apr 2020 20:46:51 -0500 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <9CF32CFB-A309-4F21-8F98-0A1C7BF1B75B@w2xj.net> References: <9CF32CFB-A309-4F21-8F98-0A1C7BF1B75B@w2xj.net> Message-ID: <031f01d61dc8$0ec7fb20$2c57f160$@LNAINC.com> I am not using Windows 10, but am posting this in HTML as a test. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of W2xj Sent: Tuesday, April 28, 2020 7:40 PM To: Chuck Chandler Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Mail for Windows 10 the vast majority of list servers strip HTML. Sent from my iPad > On Apr 28, 2020, at 8:11 PM, Chuck Chandler wrote: > > ?After reviewing several of my recent emails that came to the list as blank > emails, and seeing a few of those every few days on this list from others, > I am beginning to think the listserv here is configured to reject HTML > Mail. The shack computer has Mail for Windows 10 on it, and that was used > for a few emails recently. I also used my phone, and another > computer where I was using the G-Mail web interface. But, the shack PC and > it's Mail for Windows 10 seems to be the one that delivered empty or blank > emails to the list. > > Can an administrator of the list (or someone knowledgeable about the > reflector) advise if this list rejects HTML Mail? That appears to be the > only format used by Mail for Windows 10. > > Alternatively, has anyone had success using Mail for Windows 10 for posting > to this list? M4W10 settings don't show any send format controls, and a > web search showed nothing but a series of complaints about the lack of > plain text sending from 3 years back. > > -- > 73 de Chuck, WS1L > > chandlerusm at gmail.com > ______________________________________________________________ From w6jhb at me.com Tue Apr 28 22:03:32 2020 From: w6jhb at me.com (James Bennett) Date: Tue, 28 Apr 2020 19:03:32 -0700 Subject: [Elecraft] KX2 / KPA500 (resolved) In-Reply-To: References: <16859A33-EB2F-4DBB-AED3-8055F409B4E6@me.com> <72E8C1CF-C4B6-43CE-BABB-2B5B366B5C42@me.com> <0B2E7C12-16E8-4580-A7EB-6E8C8C4AD83E@me.com> <5F27C567-0623-47AA-B0F8-7E590E5E4E09@me.com> Message-ID: <09951B0D-FDD1-4B71-8D28-08EFCF7719B2@me.com> Let me answer a couple questions here in one message. Jack - I recall from working with you several years ago on a similar situation that indeed, the amp ?defaults? to 60 meters when the K3 is off. Also, with the interrupter in place, and NO cable between K3 Key Out and amp, the K3 does NOT key the amp. So, I now have it working perfectly, as I did when I had a KX3 many moons ago. Here is the setup: ??> KPAK3AUX cable and Key Line Interrupter between K3 and KPA500. Two-way RCA jack splitter plugged into the PA Key on the KPA500; one cable to the K3 Key Out, the other to the KX2 Acc port (ring 2 and shield). With this configuration, either the K3 or the KX2 can key the KPA500 and drive it as desired. I see that in the KPA500 manual, Rev D, 3/10/2017, the diagram indicates ?Break Key Line to Insert External Equipment?. Interestingly, it also shows the line from the amp going to the K3 Key jack, which I don?t think is correct - it should point to the second jack from the right - the Key Out connection, right? Jack - do you see any problem in doing the connections as I?ve done? seems to work fine, and I?ve not seen any smoke escaping from either rig! Jim / W6JHB > On Apr 28, 2020, at 5:33 PM, Mark Goldberg wrote: > > My confusion is connecting the KPA500 to both the KX2 and K3 at the same time. I use my KPA500 with two different radios, but it is only connected to one of them at a time. In my case it is: > > RF, RS232 and PTT in from my TS-590S > OR > RF, and PTT in from my KX3 > > I assumed that pull ups / downs when units are not powered up would mess things up and they are not designed to be wired ored, especially when not powered up. Since I don't have a K3, I don't know how it connects up. > > 73, > > Mark > W7MLG > > > On Tue, Apr 28, 2020 at 4:48 PM Jack Brindle via Elecraft > wrote: > I went back and reread this . My question is this - with the interrupter in place, does the K3 still key the amplifier? > > I suspect you are running into the issue of pull-ups on the K3 pulling the PTT signal up to Vcc. Of course Vcc when the K3 is off is 0 volts, which causes the KPA to key. > We see the same issue with the BAND lines, which is why the KPA500 switches to 60 meters shortly after the K3 is powered off. > > So, I?m wondering what is going on also. More details and tests should resolve the questions. > > 73! > Jack, W6FB From k6dgw at foothill.net Tue Apr 28 22:05:40 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Tue, 28 Apr 2020 19:05:40 -0700 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <031f01d61dc8$0ec7fb20$2c57f160$@LNAINC.com> References: <9CF32CFB-A309-4F21-8F98-0A1C7BF1B75B@w2xj.net> <031f01d61dc8$0ec7fb20$2c57f160$@LNAINC.com> Message-ID: <497fcd2c-097e-b058-9376-5f8e5ec6a75a@foothill.net> Inspecting the headers and msg body, your reply contains text 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/28/2020 6:46 PM, Lyn Norstad wrote: > I am not using Windows 10, but am posting this in HTML as a test. > > > > 73 > > Lyn, W0LEN > > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of W2xj > Sent: Tuesday, April 28, 2020 7:40 PM > To: Chuck Chandler > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Mail for Windows 10 > > > > the vast majority of list servers strip HTML. > > > > Sent from my iPad > > > >> On Apr 28, 2020, at 8:11 PM, Chuck Chandler wrote: >> ?After reviewing several of my recent emails that came to the list as blank >> emails, and seeing a few of those every few days on this list from others, >> I am beginning to think the listserv here is configured to reject HTML >> Mail. The shack computer has Mail for Windows 10 on it, and that was used >> for a few emails recently. I also used my phone, and another >> computer where I was using the G-Mail web interface. But, the shack PC and >> it's Mail for Windows 10 seems to be the one that delivered empty or blank >> emails to the list. >> Can an administrator of the list (or someone knowledgeable about the >> reflector) advise if this list rejects HTML Mail? That appears to be the >> only format used by Mail for Windows 10. >> Alternatively, has anyone had success using Mail for Windows 10 for posting >> to this list? M4W10 settings don't show any send format controls, and a >> web search showed nothing but a series of complaints about the lack of >> plain text sending from 3 years back. >> -- >> 73 de Chuck, WS1L >> chandlerusm 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 k6dgw at foothill.net From k2asp at kanafi.org Tue Apr 28 22:31:20 2020 From: k2asp at kanafi.org (Phil Kane) Date: Tue, 28 Apr 2020 19:31:20 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: On 4/28/2020 11:35 AM, Mike Short wrote: > I got my Novice in 1972 in Boise Idaho. I don?t remember if there was an > FCC office there. Would they have gone to other cities to administer exams, > or did they have VE?s by then? My dad and I both tested together. In that era there were traveling FCC exam sessions (usually quarterly) in such cities. The "VE" system as we know it started in the mid-1980a but if someone was more than 75 (or was it 150) miles from a quarterly examination point, the exam for a Conditional license that had General Class privileges could be administered by mail supervised by a designated ham licensee. Sometime in that era, Novice and Technician Class license exams were shunted off to designated ham licensees as well because the FCC wanted to try it out nationwide. Some of the FCC examiners were happy about that, some were not. Hard to please everyone. For a very short time, the FCC contracted with the US Civil Service Commission to give written license exams at selected CSC offices but that was never a success and did not last very long. 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 Tue Apr 28 23:02:03 2020 From: k2asp at kanafi.org (Phil Kane) Date: Tue, 28 Apr 2020 20:02:03 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> Message-ID: On 4/28/2020 7:17 AM, Bob McGraw K4TAX wrote: > I recall many much older folks seemingly to be struggling to take the > tests.? Some commented "what's this kid doing in here?"? Seems some had > taken it several times without success.? U took my Second Phone exam in 1952 when I was 16 (senior year in HS) at the old New York Office. Being so cocksure I never studied the stuff for Element One (Rules and Regulations) and blew it big time because one had to recite the "proper answer" word for word. Came back a month later and aced it, as well as the other two elements. took Element Four for the First Phone a year later when I was 17 and a freshman in engineering school. The examiner in those days was the legendary Charles Finkelman, whose name led to the "Uncle Charlie" nickname for the FCC in later years. He appeared formidable to us applicants, but in real life he was a really nice guy. 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 Wed Apr 29 00:16:56 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Wed, 29 Apr 2020 00:16:56 -0400 Subject: [Elecraft] K2 PA In-Reply-To: References: Message-ID: <015612b2-a9d9-3bbc-c198-9894750401c7@embarqmail.com> Aaron, Did you replace the PA transistor thermal pads? And if so, did you smooth out and metal projections on the heat sink before installing the heatsink? Those are necessary steps to prevent a short from the PA transistor tabs (also the collector) to the heatsink. You must always do a resistance check from the Q7 and/or Q8 collector leads to ground after installing the heatsink. If that check shows you a zero or very low resistance, then you need to investigate the cause - usually metal embedded in the thermal pads, or jagged edges on the heatsink where the heatsink contacts the thermal pads. 73, Don W3FPR On 4/28/2020 4:22 PM, Aaron K5ATG wrote: > I just replaced the PA's on my K2. I replaced Q7, Q8, Q11, Q13 with parts > from the Elecraft PA Replacement Kit. I have done this in the past with no > problems. Power is supplied from a switching power supply that supplies > power to a power distribution box that has a fuse for each output. This > distribution box supplies power to a small 2 meter 70cm mobile/base radio > and a LED light strip. This setup has been working with no trouble for a > while. Now as soon as I plug in the power cord to the K2 all of the power > coming from the distribution box shuts off. I used the same power cord on > two other radios and it worked just fine. So the problem lies in the K2. > While working on the K2 I messed with replacing only the parts mentioned > above. I went over the PA's with a magnifying glass looking for solder > bridges and other faults and could not find any. This problem did not exist > before I changed the PA's. I would appreciate any ideas as to what may be > the problem. > Aaron K5ATG > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Wed Apr 29 00:27:16 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 28 Apr 2020 21:27:16 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> Message-ID: <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> On 4/28/2020 4:16 PM, EricJ wrote: > but some time in the mid-50s it was given over to volunteer hams. My memory is that it was a LOT later than that. I'd guess late '70s to early '80s. 73, Jim K9YC From jim at audiosystemsgroup.com Wed Apr 29 00:34:26 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 28 Apr 2020 21:34:26 -0700 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: References: Message-ID: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> On 4/28/2020 5:10 PM, Chuck Chandler wrote: > I am beginning to think the listserv here is configured to reject HTML > Mail. More correctly, it rejects formatted text. When you see blank emails with no content, that's why. I've posted to that effect several times in the last week. I've used a full-featured program called Thunderbird for decades -- it can do formatted or un-formatted text. It's also VERY versatile in its ability to create mailboxes and sort based on key words (like the [Elecraft] in a message header, and it can handle multiple email addresses. It's published by Mozilla, who does Firefox. And it's free. 73, Jim K9YC From wes_n7ws at triconet.org Wed Apr 29 00:51:52 2020 From: wes_n7ws at triconet.org (Wes) Date: Tue, 28 Apr 2020 21:51:52 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup .com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata .com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> Message-ID: <4e34a44c-fe97-13e7-692c-a7cc0f6b3a29@triconet.org> On September 13, 1982, public law 97-259 was enacted which amended the Communications Act of 1934 to permit the FCC to accept the services of private individuals and organizations acting to prepare and administer examinations for applicants wishing to obtain (or upgrade) an Amateur Radio license.? (Source: Anchorage Amateur Radio Club) Wes? N7WS On 4/28/2020 9:27 PM, Jim Brown wrote: > On 4/28/2020 4:16 PM, EricJ wrote: >> but some time in the mid-50s it was given over to volunteer hams. > > My memory is that it was a LOT later than that. I'd guess late '70s to early > '80s. > > 73, Jim K9YC From n4zr at comcast.net Wed Apr 29 07:45:39 2020 From: n4zr at comcast.net (N4ZR) Date: Wed, 29 Apr 2020 07:45:39 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> Message-ID: <0e48ebc1-2b68-2a98-6be5-62ed564c5857@comcast.net> Yes, that's right.? I took the Novice exam in May 1954 and the General exam in May and June, 1955. both at the FCC in Detroit - flunked the code first time around.? Does anyone remember K8DX, long-time head of the Detroit office of the FCC and a truly formidable figure (especially if you're 14).? Like other FCC figures mentioned here, I understand he was a good guy, but after all, I was 14! 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 4/29/2020 12:27 AM, Jim Brown wrote: > On 4/28/2020 4:16 PM, EricJ wrote: >> but some time in the mid-50s it was given over to volunteer hams. > > My memory is that it was a LOT later than that. I'd guess late '70s to > early '80s. > > 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 n4zr at comcast.net From n4zr at comcast.net Wed Apr 29 07:54:53 2020 From: n4zr at comcast.net (N4ZR) Date: Wed, 29 Apr 2020 07:54:53 -0400 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> Message-ID: <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> I, too, use Thunderbird with Windows 10.? I have HTML selected in my Composition and Addressing options, yet my messages come through fine.? I do have unicode selected as my Encoding and auto-detect selected for Delivery Format, which may have something (or everything) to do with it. 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 4/29/2020 12:34 AM, Jim Brown wrote: > On 4/28/2020 5:10 PM, Chuck Chandler wrote: >> I am beginning to think the listserv here is configured to reject HTML >> Mail. > > More correctly, it rejects formatted text. When you see blank emails > with no content, that's why. I've posted to that effect several times > in the last week. > > I've used a full-featured program called Thunderbird for decades -- it > can do formatted or un-formatted text. It's also VERY versatile in its > ability to create mailboxes and sort based on key words (like the > [Elecraft] in a message header, and it can handle multiple email > addresses. It's published by Mozilla, who does Firefox. And it's free. > > 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 n4zr at comcast.net From chandlerusm at gmail.com Wed Apr 29 08:31:10 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Wed, 29 Apr 2020 07:31:10 -0500 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> Message-ID: Most email clients send both an html and a plain text component. Some lists strip the HTML and only display the plain text. Others can accept HTML without a problem, for example Groups.io lists. Using Mail for Windows 10 with them works fine. >From my limited research it seems Mail for Windows 10 only sends an HTML component. The Elecraft list software then appears to accept the email and post the header, but not display any content. Whether or not it then generates an error message to the list owners I don't know. It certainly doesn't provide any 'bounce' notice to the sender. Caveat: I have no access to the list mechanisms, just a passing familiarity with having run a few listservs at work. Unless the list is capable of being re-configured (possibly with the ' *convert_html_to_plaintext* ' option?), I would urge some notice be given to users that this list is incompatible with Mail for Windows 10, since there does not appear to be any sort of error feedback other than that provided by other users who let you know your message did not get through. Doing so might also reduce the amount of "test" and empty-content messages on the list. Since Mail for Windows 10 is the default mail client for any PC running Windows 10, the issue is unlikely to go away on it's own. 73 de Chuck, WS1L On Wed, Apr 29, 2020 at 6:56 AM N4ZR wrote: > I, too, use Thunderbird with Windows 10. I have HTML selected in my > Composition and Addressing options, yet my messages come through fine. > I do have unicode selected as my Encoding and auto-detect selected for > Delivery Format, which may have something (or everything) to do with it. > > 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 4/29/2020 12:34 AM, Jim Brown wrote: > > On 4/28/2020 5:10 PM, Chuck Chandler wrote: > >> I am beginning to think the listserv here is configured to reject HTML > >> Mail. > > > > More correctly, it rejects formatted text. When you see blank emails > > with no content, that's why. I've posted to that effect several times > > in the last week. > > > > I've used a full-featured program called Thunderbird for decades -- it > > can do formatted or un-formatted text. It's also VERY versatile in its > > ability to create mailboxes and sort based on key words (like the > > [Elecraft] in a message header, and it can handle multiple email > > addresses. It's published by Mozilla, who does Firefox. And it's free. > > > > 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 n4zr 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 chandlerusm at gmail.com -- =================== Chuck Chandler chandlerusm at gmail.com =================== From chandlerusm at gmail.com Wed Apr 29 08:31:10 2020 From: chandlerusm at gmail.com (Chuck Chandler) Date: Wed, 29 Apr 2020 07:31:10 -0500 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> Message-ID: Most email clients send both an html and a plain text component. Some lists strip the HTML and only display the plain text. Others can accept HTML without a problem, for example Groups.io lists. Using Mail for Windows 10 with them works fine. >From my limited research it seems Mail for Windows 10 only sends an HTML component. The Elecraft list software then appears to accept the email and post the header, but not display any content. Whether or not it then generates an error message to the list owners I don't know. It certainly doesn't provide any 'bounce' notice to the sender. Caveat: I have no access to the list mechanisms, just a passing familiarity with having run a few listservs at work. Unless the list is capable of being re-configured (possibly with the ' *convert_html_to_plaintext* ' option?), I would urge some notice be given to users that this list is incompatible with Mail for Windows 10, since there does not appear to be any sort of error feedback other than that provided by other users who let you know your message did not get through. Doing so might also reduce the amount of "test" and empty-content messages on the list. Since Mail for Windows 10 is the default mail client for any PC running Windows 10, the issue is unlikely to go away on it's own. 73 de Chuck, WS1L On Wed, Apr 29, 2020 at 6:56 AM N4ZR wrote: > I, too, use Thunderbird with Windows 10. I have HTML selected in my > Composition and Addressing options, yet my messages come through fine. > I do have unicode selected as my Encoding and auto-detect selected for > Delivery Format, which may have something (or everything) to do with it. > > 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 4/29/2020 12:34 AM, Jim Brown wrote: > > On 4/28/2020 5:10 PM, Chuck Chandler wrote: > >> I am beginning to think the listserv here is configured to reject HTML > >> Mail. > > > > More correctly, it rejects formatted text. When you see blank emails > > with no content, that's why. I've posted to that effect several times > > in the last week. > > > > I've used a full-featured program called Thunderbird for decades -- it > > can do formatted or un-formatted text. It's also VERY versatile in its > > ability to create mailboxes and sort based on key words (like the > > [Elecraft] in a message header, and it can handle multiple email > > addresses. It's published by Mozilla, who does Firefox. And it's free. > > > > 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 n4zr 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 chandlerusm at gmail.com -- =================== Chuck Chandler chandlerusm at gmail.com =================== From kt5te at watershipfarm.com Wed Apr 29 09:30:45 2020 From: kt5te at watershipfarm.com (KT5TE) Date: Wed, 29 Apr 2020 08:30:45 -0500 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <497fcd2c-097e-b058-9376-5f8e5ec6a75a@foothill.net> References: <031f01d61dc8$0ec7fb20$2c57f160$@LNAINC.com> <497fcd2c-097e-b058-9376-5f8e5ec6a75a@foothill.net> Message-ID: <61086335.PgmnqnUhCG@linux-veff> What is all this Windows 10 stuff? ;-) I've used Kontact for decades and have all the HTML formatting turned off. Does Win10 Mail have a setting to use "text" only? -- 73, William KT5TE On Tuesday, April 28, 2020 9:05:40 PM CDT Fred Jensen wrote: > Inspecting the headers and msg body, your reply contains text > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 4/28/2020 6:46 PM, Lyn Norstad wrote: > > I am not using Windows 10, but am posting this in HTML as a test. > > > > > > > > 73 > > > > Lyn, W0LEN > > > > > > > > > > > > -----Original Message----- > > From: elecraft-bounces at mailman.qth.net > > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of W2xj Sent: > > Tuesday, April 28, 2020 7:40 PM > > To: Chuck Chandler > > Cc: elecraft at mailman.qth.net > > Subject: Re: [Elecraft] Mail for Windows 10 > > > > > > > > the vast majority of list servers strip HTML. > > > > > > > > Sent from my iPad > > > >> On Apr 28, 2020, at 8:11 PM, Chuck Chandler > >> wrote: > >> ?After reviewing several of my recent emails that came to the list as > >> blank > >> emails, and seeing a few of those every few days on this list from > >> others, > >> I am beginning to think the listserv here is configured to reject HTML > >> Mail. The shack computer has Mail for Windows 10 on it, and that was > >> used > >> for a few emails recently. I also used my phone, and another > >> computer where I was using the G-Mail web interface. But, the shack PC > >> and > >> it's Mail for Windows 10 seems to be the one that delivered empty or > >> blank > >> emails to the list. > >> Can an administrator of the list (or someone knowledgeable about the > >> reflector) advise if this list rejects HTML Mail? That appears to be the > >> only format used by Mail for Windows 10. > >> Alternatively, has anyone had success using Mail for Windows 10 for > >> posting > >> to this list? M4W10 settings don't show any send format controls, and a > >> web search showed nothing but a series of complaints about the lack of > >> plain text sending from 3 years back. > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 kt5te at watershipfarm.com From w0gv at hotmail.com Wed Apr 29 09:35:02 2020 From: w0gv at hotmail.com (Gerry Villhauer) Date: Wed, 29 Apr 2020 13:35:02 +0000 Subject: [Elecraft] Elecraft] OT: The Colpitts mystery Message-ID: The text book of choice for the commercial license test was: Electronic Communications by Shrader. I have a copy, 2nd addition. I used it for passing my 2nd and 1st class commercial test...Now the General Radio Telecommunication License. Gerry, W0GV From kevin at ve3syb.ca Wed Apr 29 09:47:08 2020 From: kevin at ve3syb.ca (Kevin Cozens) Date: Wed, 29 Apr 2020 09:47:08 -0400 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <61086335.PgmnqnUhCG@linux-veff> References: <031f01d61dc8$0ec7fb20$2c57f160$@LNAINC.com> <497fcd2c-097e-b058-9376-5f8e5ec6a75a@foothill.net> <61086335.PgmnqnUhCG@linux-veff> Message-ID: On 2020-04-29 9:30 a.m., KT5TE wrote: > I've used Kontact for decades and have all the HTML formatting turned off. I have used Thunderbird for longer than I can remember. I have it set to use text only, even for incoming messages. I get to choose if I want to see HTML formatted messages. The other benefit is a reduction in my being tracked when reading (spam) emails. -- 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 kkf4kfg at jarsprep.net Wed Apr 29 10:04:49 2020 From: kkf4kfg at jarsprep.net (kk4kfg) Date: Wed, 29 Apr 2020 10:04:49 -0400 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> Message-ID: <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> Respectfully I offer the following. So yet again Microsoft and Windows 10 does something absolutely stupid and against every known specification for a mail client and the offered "solution" is for others to fix it or mask a solution. One of the reasons why Elecraft is a leader in radio innovation. They understand the insanity of software companies and make sure you do not need a computer to run their radio. From dave at nk7z.net Wed Apr 29 10:46:00 2020 From: dave at nk7z.net (Dave Cole) Date: Wed, 29 Apr 2020 07:46:00 -0700 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> Message-ID: =====================================CUT===================================== On 4/29/20 7:04 AM, kk4kfg wrote: Respectfully I offer the following. So yet again Microsoft and Windows 10 does something absolutely stupid and against every known specification for a mail client and the offered "solution" is for others to fix it or mask a solution. =====================================CUT===================================== ...and that is why I run Linux as my main OS! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources From ted.roycraft at gmail.com Wed Apr 29 10:47:25 2020 From: ted.roycraft at gmail.com (Ted Roycraft) Date: Wed, 29 Apr 2020 10:47:25 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> Message-ID: <2abba0b3-6f3a-0463-169f-f741430c5ce9@gmail.com> I took the test for Extra administered by an FCC examiner, David Popkin, in NYC in 1964.? So there were still FCC examiners then. Funny that I still remember David Popkin's name but I can't remember what I had for dinner last night. 73, Ted, W2ZK On 4/29/2020 12:27 AM, Jim Brown wrote: > On 4/28/2020 4:16 PM, EricJ wrote: >> but some time in the mid-50s it was given over to volunteer hams. > > My memory is that it was a LOT later than that. I'd guess late '70s to > early '80s. > > 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 ted.roycraft at gmail.com From Lyn at LNAINC.com Wed Apr 29 11:20:16 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Wed, 29 Apr 2020 10:20:16 -0500 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> Message-ID: <00fb01d61e39$b06ef840$114ce8c0$@LNAINC.com> Apparently Microsoft Outlook has none of the issues being described. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave Cole Sent: Wednesday, April 29, 2020 9:46 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Mail for Windows 10 =====================================CUT==================================== = On 4/29/20 7:04 AM, kk4kfg wrote: Respectfully I offer the following. So yet again Microsoft and Windows 10 does something absolutely stupid and against every known specification for a mail client and the offered "solution" is for others to fix it or mask a solution. =====================================CUT==================================== = ...and that is why I run Linux as my main OS! 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 lyn at lnainc.com From eric_csuf at hotmail.com Wed Apr 29 12:07:57 2020 From: eric_csuf at hotmail.com (EricJ) Date: Wed, 29 Apr 2020 09:07:57 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> Message-ID: Poor choice of words on my part, Jim. "Volunteer hams" were NOT VE's . They weren't recognized by or known to the FCC other than as ham licensees. A prospective ham would find a local ham to volunteer to administer the exam and sign some forms. I don't think it could be a relative, but other than that it could be any General class ham off the street. That action was taken in 1955. I took my Novice exam in 1957 with some random PFC ham my dad found in his Army unit. He might have been his radio operator, but he was a General Class ham from civilian life. I have no doubt many Novices were tested by their elmers in those days. What you're probably remembering is the institution of VE's in 1982. While not employees of the FCC, of course, they are officially recognized examiners by the FCC. Also remember, I'm only talking about the Novice and Conditional exams. General class hams were still tested by the FCC. For much of that period there were no Advanced or Extra licenses issued at all, but until the VE program, they also were tested by the FCC. Eric KE6US On 4/28/2020 9:27 PM, Jim Brown wrote: > On 4/28/2020 4:16 PM, EricJ wrote: >> but some time in the mid-50s it was given over to volunteer hams. > > My memory is that it was a LOT later than that. I'd guess late '70s to > early '80s. > > 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 eric_csuf at hotmail.com . From eric_csuf at hotmail.com Wed Apr 29 12:16:45 2020 From: eric_csuf at hotmail.com (EricJ) Date: Wed, 29 Apr 2020 09:16:45 -0700 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: References: <031f01d61dc8$0ec7fb20$2c57f160$@LNAINC.com> <497fcd2c-097e-b058-9376-5f8e5ec6a75a@foothill.net> <61086335.PgmnqnUhCG@linux-veff> Message-ID: Another benefit is not getting a screen full of inane animated emojis? from friends and relatives when html is eliminated. Thunderbird logs in, sorts and processes email from three accounts for me. It puts elecraft email in one folder after stripping out any emails with product names from K3 on (hi). I only have a K1 and two K2s. It doesn't strip off-topic emails which are often the most interesting part of all the email reflectors I belong to. Other groups are also sorted to their respective folders and junk/spam/trash goes to a separate one. Eric KE6US On 4/29/2020 6:47 AM, Kevin Cozens wrote: > On 2020-04-29 9:30 a.m., KT5TE wrote: >> I've used Kontact for decades and have all the HTML formatting turned >> off. > > I have used Thunderbird for longer than I can remember. I have it set > to use text only, even for incoming messages. I get to choose if I > want to see HTML formatted messages. The other benefit is a reduction > in my being tracked when reading (spam) emails. > From dave.w0zf at gmail.com Wed Apr 29 12:38:31 2020 From: dave.w0zf at gmail.com (Dave Fugleberg) Date: Wed, 29 Apr 2020 11:38:31 -0500 Subject: [Elecraft] Elecraft] OT: The Colpitts mystery In-Reply-To: References: Message-ID: Yep, that was the textbook for the Communications class I had in electronics school in 1983. One of the requirements to pass the class was to pass the General Radiotelephone exam. The FCC Examiner came over from the St Paul field office to the technical school to administer the exam to the class. Shortly after that, I went to the field office and passed the General and Advanced amateur exams...most of the technical portions were nearly identical to the General Radiotelephone. On Wed, Apr 29, 2020 at 8:35 AM Gerry Villhauer wrote: > The text book of choice for the commercial license test was: Electronic > Communications by Shrader. I have a copy, 2nd addition. I used it for > passing my 2nd and 1st class commercial test...Now the General Radio > Telecommunication License. > Gerry, W0GV > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jim at audiosystemsgroup.com Wed Apr 29 12:41:01 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 29 Apr 2020 09:41:01 -0700 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> Message-ID: On 4/29/2020 5:31 AM, Chuck Chandler wrote: > Unless the list is capable of being re-configured (possibly with the ' > *convert_html_to_plaintext* ' option?), I would urge some notice be given > to users that this list is incompatible with Mail for Windows 10, This reflector has been happily operating for 20 years with plain text. I subscribe to about 30 lists, half of which operate with plain text. I suggest that users get with THAT program, rather than suggest that these lists are wrong. 73, Jim K9YC From rsoifer1 at aol.com Wed Apr 29 12:45:03 2020 From: rsoifer1 at aol.com (Ray Soifer) Date: Wed, 29 Apr 2020 16:45:03 +0000 (UTC) Subject: [Elecraft] KX3 Firmware References: <450108723.2267715.1588178703467.ref@mail.yahoo.com> Message-ID: <450108723.2267715.1588178703467@mail.yahoo.com> Dear Elecraft, I'm sure you're getting lots of requests for FT8 but I have a simpler request. Would it be possible to add 75 baud RTTY to the KX3 firmware? BARTG and other RTTY groups are increasingly using it. 73 Ray W2RS From kevinr at coho.net Wed Apr 29 12:59:44 2020 From: kevinr at coho.net (kevinr) Date: Wed, 29 Apr 2020 09:59:44 -0700 Subject: [Elecraft] Evening Net Announcement & Invitation Message-ID: Good Morning, I have been running the Elecraft CW Net since 2002.? It started on 20 meters but requests from the West Coast had me start the 40 meter net a year later.? I have received numerous email messages and over the air requests for a mid week evening net.? I will finally get started on that this evening. I could run the net as I normally do: call for check ins and then work them in order.? Then call CQ again and work the new list. All while using directed net rules.? Tonight I would like to try a round robin net so others will act as net control.? Think of it as a training exercise.? I keep track of things using two sheets of paper, one for notes, the other for the final list.? While I could have been using computers to do all of the logging I purposely have kept computers out of my radio shack.? I am stuck in front of them during most of the week I would rather spend some time away from a screen while I am on the air. But, I digress.? If you want to be part of the round robin effort simply keep track of who you worked.? I will try to keep track but if all goes well someone will be able to work outside of my listening area.? Send your results to me via the radio at the end of the net or email them to me directly.? I expect the first few attempts will be chaotic.? This is normal, it is part of the learning process.? ECN has changed over time, I expect this net will change as well. I will start on or near 7047 kHz at 8 PM PDT or 0300z.? Then we see what happens.? This is only an experiment, if it works out that would be fantastic if it doesn't that's OK too.? Forty meters may not work tonight or people may be busy with something else or there are other nets active taking up the space.? I just want to see if all those people who asked me to do this will be on the air and active.? If this time and technique works out the new net should be self supporting allowing new folks to join in at any time with everyone doing part of the work.? I will start the nets and create the reports until someone else volunteers to take over. Please join the Elecraft Evening Net on or near 7047 kHz at 8 PM PDT or 0300z. If users of other modes (other than CW that is) want to participate please feel free to start calling at 8 PM (0300z) on your mode's favorite frequency.? Then send your net report to me so I can collate it with the others.? Cross mode contacts would be fun once we get this running well. Until this evening 73, ??? Kevin.? KD5ONS - This story shall the good man teach his son; And Crispin Crispian shall ne'er go by, From this day to the ending of the world, But we in it shall be remember?d? We few, we happy few, we band of brothers; For he to-day that sheds his blood with me Shall be my brother; be he ne'er so vile, This day shall gentle his condition; And gentlemen in England now a-bed Shall think themselves accurs'd they were not here, And hold their manhoods cheap whiles any speaks That fought with us upon Saint Crispin's day. From n1rj at roadrunner.com Wed Apr 29 13:03:27 2020 From: n1rj at roadrunner.com (Roger D Johnson) Date: Wed, 29 Apr 2020 13:03:27 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <2abba0b3-6f3a-0463-169f-f741430c5ce9@gmail.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <2abba0b3-6f3a-0463-169f-f741430c5ce9@gmail.com> Message-ID: <57a43e75-99ba-702d-1f51-bf445ebfec6e@roadrunner.com> I was stationed with the Coast Guard in Kodiak, Alaska between Summer 1976 and Summer 1978. I flew up to Anchorage to take my Extra exam before an examiner. Probably sometime in 1977. 73, Roger On 4/29/2020 10:47 AM, Ted Roycraft wrote: > I took the test for Extra administered by an FCC examiner, David Popkin, in NYC > in 1964. So there were still FCC examiners then. Funny that I still remember > David Popkin's name but I can't remember what I had for dinner last night. > > 73, Ted, W2ZK > > On 4/29/2020 12:27 AM, Jim Brown wrote: >> On 4/28/2020 4:16 PM, EricJ wrote: >>> but some time in the mid-50s it was given over to volunteer hams. >> >> My memory is that it was a LOT later than that. I'd guess late '70s to early >> '80s. >> >> 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 ted.roycraft 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 n1rj at roadrunner.com From dm4im at t-online.de Wed Apr 29 13:21:47 2020 From: dm4im at t-online.de (Martin) Date: Wed, 29 Apr 2020 19:21:47 +0200 Subject: [Elecraft] Elecraft Digest, Vol 192, Issue 42 In-Reply-To: References: Message-ID: <8fd2450c-c89b-dd27-986d-a1eea84a8361@t-online.de> Well, this list is not incompatible with Mail for Windows10, Mail for Windows10 is incompatible with most lists. Am 29.04.20 um 18:16 schrieb elecraft-request at mailman.qth.net: > Unless the list is capable of being re-configured (possibly with the ' > *convert_html_to_plaintext* ' option?), I would urge some notice be given > to users that this list is incompatible with Mail for Windows 10, since > there does not appear to be any sort of error feedback other than that > provided by other users who let you know your message did not get through. -- 73, Martin DM4iM From k2asp at kanafi.org Wed Apr 29 13:28:56 2020 From: k2asp at kanafi.org (Phil Kane) Date: Wed, 29 Apr 2020 10:28:56 -0700 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> Message-ID: On 4/29/2020 7:04 AM, kk4kfg wrote: > So yet again Microsoft and Windows 10 does something absolutely stupid > and against every known specification for a mail client and the offered > "solution" is for others to fix it or mask a solution. I use Windows 10 on all my PCs and my wife's Microsoft Surface. We just don't use Mail. To paraphrase an old cartoon - is it OK to wear jeans in school? Yes it's OK to wear jeans in school , but it it not OK to wear jeans in THIS school". I too have used Thunderbird for at least 20 years, after I switched from PC-Mail and the IBM-OS/2 operating system to Windows NT. My arm still hurts from being twisted. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From bdeuby at gmail.com Wed Apr 29 13:30:46 2020 From: bdeuby at gmail.com (Brian Deuby) Date: Wed, 29 Apr 2020 13:30:46 -0400 Subject: [Elecraft] K3 - Using Mono Phone Jack Adapter in "Key" Port Message-ID: I'm considering attempting modify the operation of my UR5CDX CT 755 paddle so that it acts like a cootie. I understand that this can be done by using a mono phone jack adapter on the end of the CT 755 cable (which terminates with a stereo jack) and plugging it into the "Key" port on the K3. I can't find anything in any of my K3 manuals that cautions against this - but I do have a vague recollection of seeing some caution of this nature somewhere. Is there any reason I can't safely plug a mono adapter jack into the "Key" port on the K3? Thanks, Brian K8GRR From koskojw at hotmail.com Wed Apr 29 13:37:54 2020 From: koskojw at hotmail.com (John Kosko) Date: Wed, 29 Apr 2020 17:37:54 +0000 Subject: [Elecraft] Mail for Windows 10 Message-ID: I?m running a one year old ASUS using Windows 10 and Hotmail/Outlook and Win10 is NOT in Win7 mode. I?m not aware of a problem, although I didn?t get any Elecraft emails yesterday?odd. Regards, John K8TCT K3S s/n 11718 Sent from Mail for Windows 10 From bobdehaney at gmx.net Wed Apr 29 13:56:04 2020 From: bobdehaney at gmx.net (Bob DeHaney) Date: Wed, 29 Apr 2020 19:56:04 +0200 Subject: [Elecraft] Testing Message-ID: <001c01d61e4f$7411c6a0$5c3553e0$@gmx.net> I was given my Conditional Test by W4MLE(SK) in 1960. He was also my Elmer and a great guy. Vy 73 de Bob DJ0RD/WU5T From k2asp at kanafi.org Wed Apr 29 14:12:49 2020 From: k2asp at kanafi.org (Phil Kane) Date: Wed, 29 Apr 2020 11:12:49 -0700 Subject: [Elecraft] Power Supplies and Voltage drop In-Reply-To: <1f46e509-5f10-3056-4aa1-d7248584e4fb@blomand.net> References: <1f46e509-5f10-3056-4aa1-d7248584e4fb@blomand.net> Message-ID: On 4/25/2020 8:21 PM, Bob McGraw K4TAX wrote: > Here is what I did to remedy the situation.??? I obtained two 10-32 x 2" > brass screws from the hardware store.? I got 4 nuts, 2 for each screw, 4 > flat washers, 2 for each screw and two wing nuts.?? I then cut the head > off of each screw and filed a flat spot about 1/2 " long and deep enough > to removed the threads. I fixed my brand-new Astron SS-50M a bit differently. One set screw on the connection block was seized up, so Astron sent me two new blocks with instructions to open the case and replace them. When I opened the case I saw that the leads to the blocks had ring terminals held to the blocks by a short screw. I removed the existing blocks and replaced them with 10-32 x 2" brass screws. I used two short plates of ABS from TAP Plastics to serve as insulated spacers (one inside the case and one outside the case) and drilled the appropriate holes to permit the screws to be held through the case with appropriate nuts and washers. The leads to my power distribution board) are AWG 6 terminated in standard electrical lugs held by massive set-screws and are fastened onto the screws by appropriate nuts. If I have to remove them I keep a Spintite (nut driver) nearby. Works great so far! 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From KX3.2 at ColdRocksHotBrooms.com Wed Apr 29 14:32:33 2020 From: KX3.2 at ColdRocksHotBrooms.com (Lynn W. Taylor, WB6UUT) Date: Wed, 29 Apr 2020 11:32:33 -0700 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> Message-ID: <55e7ce40-2da5-3dfc-cfe7-faeee5749831@ColdRocksHotBrooms.com> Ah, sadly, no. As much as I like to blame Microsoft, we have to start with RFC-1341 and Multipurpose Independent Mail Extensions. Microsoft did not contribute to that RFC. MIME allows more than one formatting option. We had something called "Rich Text" but Netscape brought us HTML as a formatting option, and that made it possible to embed code that would load malware on your computer. That's when List Servers got the ability to strip formatting -- it put a stop to people blaming the list for the poor security in their OS. HTML is a poor choice, but it's also supported in just about every E-Mail client. This is where we can blame Microsoft (some), but it's hard to render HTML and detect all the possible issues. 73 -- Lynn, WB6UUT P.S. Thunderbird is much better, but this issue remains. On 4/29/20 7:04 AM, kk4kfg wrote: > Respectfully I offer the following. > > So yet again Microsoft and Windows 10 does something absolutely stupid > and against every known specification for a mail client and the offered > "solution" is for others to fix it or mask a solution. From KX3.2 at ColdRocksHotBrooms.com Wed Apr 29 14:33:32 2020 From: KX3.2 at ColdRocksHotBrooms.com (Lynn W. Taylor, WB6UUT) Date: Wed, 29 Apr 2020 11:33:32 -0700 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <00fb01d61e39$b06ef840$114ce8c0$@LNAINC.com> References: <3e72b89b-03be-77f7-cb6b-cee32a5b27a1@audiosystemsgroup.com> <2d2a149c-2f1d-cbb1-3481-d4e2ebca9680@comcast.net> <15766569f46e0ef16596cd718dc46a5eaf8a1d5f.camel@jarsprep.net> <00fb01d61e39$b06ef840$114ce8c0$@LNAINC.com> Message-ID: <22e07ca6-0697-006a-0376-d8dcda6b4495@ColdRocksHotBrooms.com> It depends on the version and how it is configured. On 4/29/20 8:20 AM, Lyn Norstad wrote: > Apparently Microsoft Outlook has none of the issues being described. > > > > 73 > > Lyn, W0LEN > > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave Cole > Sent: Wednesday, April 29, 2020 9:46 AM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Mail for Windows 10 > > > > =====================================CUT==================================== > = > > On 4/29/20 7:04 AM, kk4kfg wrote: > > Respectfully I offer the following. > > > > So yet again Microsoft and Windows 10 does something absolutely stupid > > and against every known specification for a mail client and the offered > > "solution" is for others to fix it or mask a solution. > > =====================================CUT==================================== > = > > > > ...and that is why I run Linux as my main OS! > > > > 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 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 kx3.2 at coldrockshotbrooms.com > From mspmail2 at gmail.com Wed Apr 29 16:05:08 2020 From: mspmail2 at gmail.com (Mike Parkes) Date: Wed, 29 Apr 2020 20:05:08 +0000 Subject: [Elecraft] KX3 internal battery charger normal behavior? (BT * ) Message-ID: I set a 12 hour charge cycle on some 2000mah Eneloops in the KX3. After the charge cycle had completed the asterisk remained on when checking voltage, showing BT*11.6V (using vfo B). Is that normal? I checked Menu > Bat Charge, and it showed CHG OFF so the charging was completed apparently but I wasn't sure about the ( * ) remaining on. - Mike AB7RU From dougfaunt at gmail.com Wed Apr 29 16:25:20 2020 From: dougfaunt at gmail.com (Doug Faunt N6TQS +1-510-717-1197) Date: Wed, 29 Apr 2020 13:25:20 -0700 Subject: [Elecraft] OT: The Colpitts mystery Message-ID: I took the commercial tests in '69. I seem to recall having to learn the various oscillator circuits. I was an ATN2 on night check in VA-125 in Lemoore, CA. The night check AT shop Chief wanted to get his 2nd class Radiotelephone so he could work on aircraft electronics when he retired, so he had the whole night check shop studying. I'd been doing electronics and radio for a number of years, so I was teaching everyone. A bunch of us went up to Fresno for the exam and I was the first one done. I was also the only one who got a 1st Radiotelephone, the rest got 3rd at best, even the Chief. I managed to pick up a broadcast endorsement in SC after I got out, and then many years later when I started sailing on tall ships, I heard about GMDSS, so studied that and added GMDSS Operator/Maintainer with a Radar endorsement on top of the GROL that my 1st had turned into. It turns out, for international compliance, the USCG required a STCW-approved course to add GMDSS to my Merchant Mariners Credential, so I had to do a 10-day course, with practical evaluations, and essay questions! So I did that, arguing with the instructor the whole time, simce I gave correct answers, but not what he expected. The other three people in the course dropped out quickly- their company had sent them, but they actually didn't need it on their MMC. 73, doug From kevinr at coho.net Wed Apr 29 16:58:06 2020 From: kevinr at coho.net (kevinr) Date: Wed, 29 Apr 2020 13:58:06 -0700 Subject: [Elecraft] Evening Net Invitation notes, addenda, and errata Message-ID: <1bc00ace-7718-4f93-c627-0bf82aafb04c@coho.net> Good Afternoon, ?? I have received a few messages about activities on 40 meters at my chosen time and frequency.? CWT may push us up in frequency but I don't want to get too far into the digital portion of the band.? The old novice band may be better between 7100 and 7125 if the QRS folks don't mind.? I plan to start around 7050 kHz and see how it goes.? The CWT activity may not reach that high. ? As for procedures I will start with a preamble of some sort explaining what we're trying to do.? Then call CQ.? I'll handle the first round logging questions and comments.? Then I will pass net control to whomever volunteers (or the one I pick :)? NCS duties are not tough.? Just call CQ and take notes.? Work your group and choose the next victim :)? When that thins out pass control back to me and I'll list questions, answers, and comments.? One more call and then let the net go free.? I have never closed the Elecraft CW Net, I just let it go free. Occasionally contacts continue between the attendees.? WAS contacts happen too.? It just feels wrong to assume one can control activity.? It is hard enough to maintain control of a net :) ? Evening net starts at 8 PM PDT (0300z) on or near 7050 kHz unless forced to move into the 7100-7125 range. ? 73, ???? Kevin.? KD5ONS - The play's the thing From k6dgw at foothill.net Wed Apr 29 17:14:11 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Wed, 29 Apr 2020 14:14:11 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> Message-ID: I'm pretty sure it was in the early 80's. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/28/2020 9:27 PM, Jim Brown wrote: > On 4/28/2020 4:16 PM, EricJ wrote: >> but some time in the mid-50s it was given over to volunteer hams. > > My memory is that it was a LOT later than that. I'd guess late '70s to > early '80s. > > 73, Jim K9YC From jasimmons at pinewooddata.com Wed Apr 29 19:08:15 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Wed, 29 Apr 2020 18:08:15 -0500 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> Message-ID: <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about 6 months before the FCC testing ended. I wanted to get it out of the way before the VE program started. Fear of the unknown, I guess. I worked as a VE early on in the program. I've seen some abuses, but overall I think it is a great change for us hams. 73, -de John NI0K Fred Jensen wrote on 4/29/2020 4:14 PM: > I'm pretty sure it was in the early 80's. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 4/28/2020 9:27 PM, Jim Brown wrote: >> On 4/28/2020 4:16 PM, EricJ wrote: >>> but some time in the mid-50s it was given over to volunteer hams. >> >> My memory is that it was a LOT later than that. I'd guess late '70s >> to early '80s. >> >> 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 k7sss at aol.com Wed Apr 29 19:46:15 2020 From: k7sss at aol.com (k7sss at aol.com) Date: Wed, 29 Apr 2020 23:46:15 +0000 (UTC) Subject: [Elecraft] OT: The Colpitts mystery References: <965634212.1698725.1588203975215.ref@mail.yahoo.com> Message-ID: <965634212.1698725.1588203975215@mail.yahoo.com> Hi all,This brings back old memories. In 1962, I was in Vocational School in St Paul, MN studying Electronics. My instructors told me to get a 1st Phone w radar endorsement as it would make it easier to get a job. So I did at the FCC office in St Paul, and since then every job I had, required a 1st or 2nd class and some jobs a radar endorsement.I had to renewed it by getting 5 endorsements from officials in charge of the stations. I did not like it when it was converted to General Radio Telephone and life time.I got my ham license in 2011 as I could not do CW. I tried but always failed. 73Jim HK7SSS In a message dated 4/29/2020 4:10:24 PM Pacific Standard Time, jasimmons at pinewooddata.com writes: I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about 6 months before the FCC testing ended. I wanted to get it out of the way before the VE program started. Fear of the unknown, I guess. I worked as a VE early on in the program. I've seen some abuses, but overall I think it is a great change for us hams. 73, -de John NI0K From eric_csuf at hotmail.com Wed Apr 29 20:45:26 2020 From: eric_csuf at hotmail.com (EricJ) Date: Wed, 29 Apr 2020 17:45:26 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> Message-ID: A google search brought up a number of websites with a history of ham licensing. They all say exactly what I said. From Wikipedia: "In the 1950s and 1960s, Novice, Technician and Conditional exams were given by licensees acting as volunteer examiners." https://en.wikipedia.org/wiki/Amateur_radio_licensing_in_the_United_States Volunteer examiners does not mean Volunteer Examiners (VE) as we've known them since 1984. VE organizations are officially recognized by the FCC. Before that, they were hams who volunteered to whoever asked to administer the test, sign it, and mail it to the FCC. They were not part of any officially recognized program as VE's are. They were just Joe Ham whose friend, acquaintance or stranger asked them to give them the test. The applicant sent away to the FCC for the test and gave it to Joe Ham in a sealed envelope. I did the deed many times at K2USA when I was stationed there in the 60's. I was just a guy with a General Class license who volunteered to give them a code test and proctor a written test. Eric KE6US ex-K1DCK, WA6YCF, WB2PVW On 4/29/2020 2:14 PM, Fred Jensen wrote: > I'm pretty sure it was in the early 80's. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 4/28/2020 9:27 PM, Jim Brown wrote: >> On 4/28/2020 4:16 PM, EricJ wrote: >>> but some time in the mid-50s it was given over to volunteer hams. >> >> My memory is that it was a LOT later than that. I'd guess late '70s >> to early '80s. >> >> 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 eric_csuf at hotmail.com . From macymonkeys at charter.net Wed Apr 29 20:52:59 2020 From: macymonkeys at charter.net (Macy monkeys) Date: Wed, 29 Apr 2020 17:52:59 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> Message-ID: <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> I took my General at the FCC office downtown Portland in the late 60s. The examiner was a tough and gruff staffer named Francis McCann. IMHO, he was extra tough on 14 year olds, hi. You know my heart was racing when that series of V's came through those headphones! John K7FD > On Apr 29, 2020, at 4:08 PM, John Simmons wrote: > > I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about 6 months before the FCC testing ended. I wanted to get it out of the way before the VE program started. Fear of the unknown, I guess. I worked as a VE early on in the program. I've seen some abuses, but overall I think it is a great change for us hams. > > 73, > -de John NI0K > > Fred Jensen wrote on 4/29/2020 4:14 PM: >> I'm pretty sure it was in the early 80's. >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >>> On 4/28/2020 9:27 PM, Jim Brown wrote: >>>> On 4/28/2020 4:16 PM, EricJ wrote: >>>> but some time in the mid-50s it was given over to volunteer hams. >>> >>> My memory is that it was a LOT later than that. I'd guess late '70s to early '80s. >>> >>> 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 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 b.denley at comcast.net Wed Apr 29 21:23:05 2020 From: b.denley at comcast.net (Brian Denley) Date: Wed, 29 Apr 2020 21:23:05 -0400 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: References: <031f01d61dc8$0ec7fb20$2c57f160$@LNAINC.com> <497fcd2c-097e-b058-9376-5f8e5ec6a75a@foothill.net> <61086335.PgmnqnUhCG@linux-veff> Message-ID: Test Brian KB1VBF Sent from Mail for Windows 10 From k2asp at kanafi.org Wed Apr 29 22:22:59 2020 From: k2asp at kanafi.org (Phil Kane) Date: Wed, 29 Apr 2020 19:22:59 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <965634212.1698725.1588203975215@mail.yahoo.com> References: <965634212.1698725.1588203975215.ref@mail.yahoo.com> <965634212.1698725.1588203975215@mail.yahoo.com> Message-ID: <5a0f6d46-8af4-f662-8c8b-336ec2e77c74@kanafi.org> On 4/29/2020 4:46 PM, Jim H via Elecraft wrote: > I did not like it when it was converted to General Radio Telephone and life time You weren't alone. I was one of the field supervisors whose opinion was being considered by the committee that dealt on how to do the transition, but the handwriting was on the wall. Ditto for the amateur radio VE testing transition. Blame me for suggesting the new name - it's the international name of that license but few of the members recognized that. 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 Wed Apr 29 22:32:31 2020 From: k2asp at kanafi.org (Phil Kane) Date: Wed, 29 Apr 2020 19:32:31 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> Message-ID: On 4/29/2020 5:52 PM, Macy monkeys wrote: > I took my General at the FCC office downtown Portland in the late > 60s. The examiner was a tough and gruff staffer named Francis McCann. > IMHO, he was extra tough on 14 year olds, hi. You know my heart was > racing when that series of V's came through those headphones! Frank McCann was one of the old timers when I joined the agency in 1967. By that time he was the Engineer in Charge of the Portland Office but the EIC did a lot of the journeyman jobs in those smaller offices. When he retired in the late 1970s (or was it the early 1980s) I applied for his job but they had to give it to someone else whose office was being closed and I continued at the San Francisco Office until I retired in 1995. I have no idea what happened to him after that. 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 Wed Apr 29 23:15:39 2020 From: kevinr at coho.net (kevinr) Date: Wed, 29 Apr 2020 20:15:39 -0700 Subject: [Elecraft] Elecraft Evening Net Report Message-ID: <08f0eadd-2cfd-dd1e-077c-b34d2a341f11@coho.net> Good Evening, ?? Conditions were not too good for the inaugural evening event. However, I was not skunked. ? On 7050.5 kHz at 0300z: KL7CW - Rick - AK He was much weaker than either of our last two contacts.? He was S9 on 20 meters and S7 on 40 meters.? Tonight he was around 559 with QSB from 3 to 6.? Not very much noise which is normally a bad sign.? Higher noise usually means I am hearing a broader area of the country. But nothing ventured nothing gained.? I started opening the net around 0255z and continued until 0309z.? I did not fail which is always a plus.? Next week I'll try again and maybe the sun will cooperate.? There were two old sunspots a few days back and new one forming today.? That gives me hope that the sun won't remain blank forever. ?? Until next week stay well, ????? Kevin.? KD5ONS - From nr4c at widomaker.com Wed Apr 29 23:44:25 2020 From: nr4c at widomaker.com (Nr4c) Date: Wed, 29 Apr 2020 23:44:25 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <5a0f6d46-8af4-f662-8c8b-336ec2e77c74@kanafi.org> References: <5a0f6d46-8af4-f662-8c8b-336ec2e77c74@kanafi.org> Message-ID: Will this ?Mystery? ever be solved? Sent from my iPhone ...nr4c. bill > On Apr 29, 2020, at 10:25 PM, Phil Kane wrote: > > ?On 4/29/2020 4:46 PM, Jim H via Elecraft wrote: > >> I did not like it when it was converted to General Radio Telephone and life time > > You weren't alone. I was one of the field supervisors whose opinion was > being considered by the committee that dealt on how to do the > transition, but the handwriting was on the wall. Ditto for the amateur > radio VE testing transition. > > Blame me for suggesting the new name - it's the international name of > that license but few of the members recognized that. > > 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 nr4c at widomaker.com From htodd at twofifty.com Thu Apr 30 00:57:20 2020 From: htodd at twofifty.com (Hisashi T Fujinaka) Date: Wed, 29 Apr 2020 21:57:20 -0700 (PDT) Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> Message-ID: I took my Tech and Advanced tests in Portland. I think I took the 13WPM twice before I passed. I also failed my 2nd Class Radiotelephone license (it was free and I didn't study enough and I failed by two questions). I remember the main guy was George Wager, and there was a woman named Sheryl who worked there who was exceptionally attractive. They were all scary, but they were also all very nice. On Wed, 29 Apr 2020, Macy monkeys wrote: > I took my General at the FCC office downtown Portland in the late 60s. The examiner was a tough and gruff staffer named Francis McCann. IMHO, he was extra tough on 14 year olds, hi. You know my heart was racing when that series of V's came through those headphones! > > John K7FD > >> On Apr 29, 2020, at 4:08 PM, John Simmons wrote: >> >> I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about 6 months before the FCC testing ended. I wanted to get it out of the way before the VE program started. Fear of the unknown, I guess. I worked as a VE early on in the program. I've seen some abuses, but overall I think it is a great change for us hams. >> >> 73, >> -de John NI0K >> >> Fred Jensen wrote on 4/29/2020 4:14 PM: >>> I'm pretty sure it was in the early 80's. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>>> On 4/28/2020 9:27 PM, Jim Brown wrote: >>>>> On 4/28/2020 4:16 PM, EricJ wrote: >>>>> but some time in the mid-50s it was given over to volunteer hams. >>>> >>>> My memory is that it was a LOT later than that. I'd guess late '70s to early '80s. >>>> >>>> 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 >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to htodd at twofifty.com > -- Hisashi T Fujinaka - htodd at twofifty.com BSEE + BSChem + BAEnglish + MSCS + $2.50 = coffee From kl7uw at acsalaska.net Thu Apr 30 01:31:13 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Wed, 29 Apr 2020 21:31:13 -0800 Subject: [Elecraft] OT: The Colpitts mystery Message-ID: <202004300531.03U5VF6p031468@mail42c28.carrierzone.com> I guess a lot of us took the Commercial Radiotelephone License. I got my Novice and Technician License by my mentor. That was the General Class written exam back then. Tried several times to pass my General CW test at the Detroit FCC office (we lived 70-miles away so not qualified for a Conditional). By 1962 I was an EE student in college with no time for upgrading (or any ham radio). In 1971 I was laid off from Hughes Aircraft along with thousands of other engineers so my job prospects were bleak. I decided to take my 2nd Class license to qualify for work for radio or TV broadcast. The theory exam was twice as tough as the Extra in my opinion. In 1982, I found a job working in marine electronics so pricked up the Radar Endorsement. I also passed my Advanced in 1982 at the Anchorage FCC. CW test had been downgraded to a multiple question exam about plain language text message vs the five mixed character groups back in Detroit. Yeah those Detroit FCC guys could have passed as FBI guys. In 1983 my 2nd class finally netted me a job as engineer for KYUK-TV in Bethel, AK (I flew out to into the bush to repair the TV translator network). Wasn't until 2000 did I pass the Extra (downgraded to 13wpm). Missed two questions on the written exam (because I knew more than the test designers and many of the answers were incorrect). 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From jonathan at m0jdr.co.uk Thu Apr 30 07:18:33 2020 From: jonathan at m0jdr.co.uk (Jonathan Reed) Date: Thu, 30 Apr 2020 11:18:33 +0000 Subject: [Elecraft] test Message-ID: Test please ignore Jonathan M0JDR From jonathan at m0jdr.co.uk Thu Apr 30 07:21:26 2020 From: jonathan at m0jdr.co.uk (Jonathan Reed) Date: Thu, 30 Apr 2020 11:21:26 +0000 Subject: [Elecraft] Test Message-ID: Sorry testing again. Jonathan M0JDR Sent from Mail for Windows 10 From kt5te at watershipfarm.com Thu Apr 30 07:56:20 2020 From: kt5te at watershipfarm.com (kt5te at watershipfarm.com) Date: Thu, 30 Apr 2020 06:56:20 -0500 Subject: [Elecraft] Boxes of tubes? What todo? Message-ID: <1725599.apG8zGF9Qg@linux-veff> I know this is unusual for the list, but I was hoping someone could send me in the right direction. In the attic of a house that was being refurbished for a office I found boxes full of tubes and other stuff from the 40s & 50s. I hated to pitch these items and figured somebody might want them, so brought it all home. :-) The house has been empty for years, but I did find a newspaper clipping and a QSO card from the 50s for Maj. Cantrell. He was called "Misawa's Iron Jaw". I bet you can guess his MOS? What do I do...? -- 73, William KT5TE From markmusick at outlook.com Thu Apr 30 08:30:34 2020 From: markmusick at outlook.com (Mark Musick) Date: Thu, 30 Apr 2020 12:30:34 +0000 Subject: [Elecraft] Boxes of tubes? What todo? In-Reply-To: <1725599.apG8zGF9Qg@linux-veff> References: <1725599.apG8zGF9Qg@linux-veff> Message-ID: William There is a distributor for antique tubes and other antique radio equipment that advertises in QST that would probably be willing to take it off your hands. Look under Antique/vintage/Classic advertising in the back of QST. 73, Mark, WB9CIF -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of kt5te at watershipfarm.com Sent: Thursday, April 30, 2020 11:56 To: elecraft at mailman.qth.net Subject: [Elecraft] Boxes of tubes? What todo? I know this is unusual for the list, but I was hoping someone could send me in the right direction. In the attic of a house that was being refurbished for a office I found boxes full of tubes and other stuff from the 40s & 50s. I hated to pitch these items and figured somebody might want them, so brought it all home. :-) The house has been empty for years, but I did find a newspaper clipping and a QSO card from the 50s for Maj. Cantrell. He was called "Misawa's Iron Jaw". I bet you can guess his MOS? What do I do...? -- 73, William KT5TE ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to markmusick at outlook.com From tson35 at icloud.com Thu Apr 30 09:22:41 2020 From: tson35 at icloud.com (Tommy Judson) Date: Thu, 30 Apr 2020 08:22:41 -0500 Subject: [Elecraft] Elecraft Digest, Vol 192, Issue 43 In-Reply-To: References: Message-ID: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> Ok, joined this group even though I don?t own an Elecraft radio - yet. I?m wanting an Elecraft Elmer to help me understand which rig could be ?the one?. What say someone please? Tommy > On Apr 29, 2020, at 10:44 PM, elecraft-request at mailman.qth.net wrote: > > Send Elecraft mailing list submissions to > elecraft at mailman.qth.net > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.qth.net/mailman/listinfo/elecraft > or, via email, send a message with subject or body 'help' to > elecraft-request at mailman.qth.net > > You can reach the person managing the list at > elecraft-owner at mailman.qth.net > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Elecraft digest..." > > > Today's Topics: > > 1. Re: Elecraft] OT: The Colpitts mystery (Dave Fugleberg) > 2. Re: Mail for Windows 10 (Jim Brown) > 3. KX3 Firmware (Ray Soifer) > 4. Evening Net Announcement & Invitation (kevinr) > 5. Re: OT: The Colpitts mystery (Roger D Johnson) > 6. Re: Elecraft Digest, Vol 192, Issue 42 (Martin) > 7. Re: Mail for Windows 10 (Phil Kane) > 8. K3 - Using Mono Phone Jack Adapter in "Key" Port (Brian Deuby) > 9. Re: Mail for Windows 10 (John Kosko) > 10. Testing (Bob DeHaney) > 11. Re: Power Supplies and Voltage drop (Phil Kane) > 12. Re: Mail for Windows 10 (Lynn W. Taylor, WB6UUT) > 13. Re: Mail for Windows 10 (Lynn W. Taylor, WB6UUT) > 14. KX3 internal battery charger normal behavior? (BT * ) > (Mike Parkes) > 15. OT: The Colpitts mystery (Doug Faunt N6TQS +1-510-717-1197) > 16. Evening Net Invitation notes, addenda, and errata (kevinr) > 17. Re: OT: The Colpitts mystery (Fred Jensen) > 18. Re: OT: The Colpitts mystery (John Simmons) > 19. Re: OT: The Colpitts mystery (k7sss at aol.com) > 20. Re: OT: The Colpitts mystery (EricJ) > 21. Re: OT: The Colpitts mystery (Macy monkeys) > 22. Re: Mail for Windows 10 (Brian Denley) > 23. Re: OT: The Colpitts mystery (Phil Kane) > 24. Re: OT: The Colpitts mystery (Phil Kane) > 25. Elecraft Evening Net Report (kevinr) > 26. Re: OT: The Colpitts mystery (Nr4c) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Wed, 29 Apr 2020 11:38:31 -0500 > From: Dave Fugleberg > To: Gerry Villhauer > Cc: "Elecraft at mailman.qth.net" > Subject: Re: [Elecraft] Elecraft] OT: The Colpitts mystery > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > Yep, that was the textbook for the Communications class I had in > electronics school in 1983. One of the requirements to pass the class was > to pass the General Radiotelephone exam. The FCC Examiner came over from > the St Paul field office to the technical school to administer the exam to > the class. > Shortly after that, I went to the field office and passed the General and > Advanced amateur exams...most of the technical portions were nearly > identical to the General Radiotelephone. > > On Wed, Apr 29, 2020 at 8:35 AM Gerry Villhauer wrote: > >> The text book of choice for the commercial license test was: Electronic >> Communications by Shrader. I have a copy, 2nd addition. I used it for >> passing my 2nd and 1st class commercial test...Now the General Radio >> Telecommunication License. >> Gerry, W0GV >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 >> > > > ------------------------------ > > Message: 2 > Date: Wed, 29 Apr 2020 09:41:01 -0700 > From: Jim Brown > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Mail for Windows 10 > Message-ID: > > Content-Type: text/plain; charset=utf-8; format=flowed > > On 4/29/2020 5:31 AM, Chuck Chandler wrote: >> Unless the list is capable of being re-configured (possibly with the ' >> *convert_html_to_plaintext* ' option?), I would urge some notice be given >> to users that this list is incompatible with Mail for Windows 10, > > This reflector has been happily operating for 20 years with plain text. > I subscribe to about 30 lists, half of which operate with plain text. I > suggest that users get with THAT program, rather than suggest that these > lists are wrong. > > 73, Jim K9YC > > > > ------------------------------ > > Message: 3 > Date: Wed, 29 Apr 2020 16:45:03 +0000 (UTC) > From: Ray Soifer > To: elecraft at mailman.qth.net > Subject: [Elecraft] KX3 Firmware > Message-ID: <450108723.2267715.1588178703467 at mail.yahoo.com> > Content-Type: text/plain; charset=UTF-8 > > Dear Elecraft, > I'm sure you're getting lots of requests for FT8 but I have a simpler request. > Would it be possible to add 75 baud RTTY to the KX3 firmware? > > BARTG and other RTTY groups are increasingly using it. > 73 Ray W2RS > > ------------------------------ > > Message: 4 > Date: Wed, 29 Apr 2020 09:59:44 -0700 > From: kevinr > To: Elecraft Reflector > Subject: [Elecraft] Evening Net Announcement & Invitation > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > Good Morning, > > I have been running the Elecraft CW Net since 2002.? It started on 20 > meters but requests from the West Coast had me start the 40 meter net a > year later.? I have received numerous email messages and over the air > requests for a mid week evening net.? I will finally get started on that > this evening. > > I could run the net as I normally do: call for check ins and then work > them in order.? Then call CQ again and work the new list. All while > using directed net rules.? Tonight I would like to try a round robin net > so others will act as net control.? Think of it as a training exercise.? > I keep track of things using two sheets of paper, one for notes, the > other for the final list.? While I could have been using computers to do > all of the logging I purposely have kept computers out of my radio > shack.? I am stuck in front of them during most of the week I would > rather spend some time away from a screen while I am on the air. > > But, I digress.? If you want to be part of the round robin effort simply > keep track of who you worked.? I will try to keep track but if all goes > well someone will be able to work outside of my listening area.? Send > your results to me via the radio at the end of the net or email them to > me directly.? I expect the first few attempts will be chaotic.? This is > normal, it is part of the learning process.? ECN has changed over time, > I expect this net will change as well. > > I will start on or near 7047 kHz at 8 PM PDT or 0300z.? Then we see what > happens.? This is only an experiment, if it works out that would be > fantastic if it doesn't that's OK too.? Forty meters may not work > tonight or people may be busy with something else or there are other > nets active taking up the space.? I just want to see if all those people > who asked me to do this will be on the air and active.? If this time and > technique works out the new net should be self supporting allowing new > folks to join in at any time with everyone doing part of the work.? I > will start the nets and create the reports until someone else volunteers > to take over. > > Please join the Elecraft Evening Net on or near 7047 kHz at 8 PM PDT or > 0300z. > > If users of other modes (other than CW that is) want to participate > please feel free to start calling at 8 PM (0300z) on your mode's > favorite frequency.? Then send your net report to me so I can collate it > with the others.? Cross mode contacts would be fun once we get this > running well. > > Until this evening 73, > > ??? Kevin.? KD5ONS > > - > > This story shall the good man teach his son; > And Crispin Crispian shall ne'er go by, > From this day to the ending of the world, > But we in it shall be remember?d? > We few, we happy few, we band of brothers; > For he to-day that sheds his blood with me > Shall be my brother; be he ne'er so vile, > This day shall gentle his condition; > And gentlemen in England now a-bed > Shall think themselves accurs'd they were not here, > And hold their manhoods cheap whiles any speaks > That fought with us upon Saint Crispin's day. > > > > > > > > ------------------------------ > > Message: 5 > Date: Wed, 29 Apr 2020 13:03:27 -0400 > From: Roger D Johnson > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: <57a43e75-99ba-702d-1f51-bf445ebfec6e at roadrunner.com> > Content-Type: text/plain; charset=windows-1252; format=flowed > > I was stationed with the Coast Guard in Kodiak, Alaska between Summer > 1976 and Summer 1978. I flew up to Anchorage to take my Extra exam before > an examiner. Probably sometime in 1977. > > 73, Roger > > > On 4/29/2020 10:47 AM, Ted Roycraft wrote: >> I took the test for Extra administered by an FCC examiner, David Popkin, in NYC >> in 1964. So there were still FCC examiners then. Funny that I still remember >> David Popkin's name but I can't remember what I had for dinner last night. >> >> 73, Ted, W2ZK >> >> On 4/29/2020 12:27 AM, Jim Brown wrote: >>> On 4/28/2020 4:16 PM, EricJ wrote: >>>> but some time in the mid-50s it was given over to volunteer hams. >>> >>> My memory is that it was a LOT later than that. I'd guess late '70s to early >>> '80s. >>> >>> 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 ted.roycraft 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 n1rj at roadrunner.com > > > ------------------------------ > > Message: 6 > Date: Wed, 29 Apr 2020 19:21:47 +0200 > From: Martin > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Elecraft Digest, Vol 192, Issue 42 > Message-ID: <8fd2450c-c89b-dd27-986d-a1eea84a8361 at t-online.de> > Content-Type: text/plain; charset=utf-8; format=flowed > > Well, this list is not incompatible with Mail for Windows10, Mail for > Windows10 is incompatible with most lists. > > > Am 29.04.20 um 18:16 schrieb elecraft-request at mailman.qth.net: >> Unless the list is capable of being re-configured (possibly with the ' >> *convert_html_to_plaintext* ' option?), I would urge some notice be given >> to users that this list is incompatible with Mail for Windows 10, since >> there does not appear to be any sort of error feedback other than that >> provided by other users who let you know your message did not get through. > > -- > > 73, Martin DM4iM > > > ------------------------------ > > Message: 7 > Date: Wed, 29 Apr 2020 10:28:56 -0700 > From: Phil Kane > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Mail for Windows 10 > Message-ID: > Content-Type: text/plain; charset=utf-8 > > On 4/29/2020 7:04 AM, kk4kfg wrote: > >> So yet again Microsoft and Windows 10 does something absolutely stupid >> and against every known specification for a mail client and the offered >> "solution" is for others to fix it or mask a solution. > > I use Windows 10 on all my PCs and my wife's Microsoft Surface. We just > don't use Mail. To paraphrase an old cartoon - is it OK to wear jeans > in school? Yes it's OK to wear jeans in school , but it it not OK to > wear jeans in THIS school". > > I too have used Thunderbird for at least 20 years, after I switched from > PC-Mail and the IBM-OS/2 operating system to Windows NT. My arm still > hurts from being twisted. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > > > ------------------------------ > > Message: 8 > Date: Wed, 29 Apr 2020 13:30:46 -0400 > From: Brian Deuby > To: elecraft at mailman.qth.net > Cc: bdeuby at gmail.com > Subject: [Elecraft] K3 - Using Mono Phone Jack Adapter in "Key" Port > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > I'm considering attempting modify the operation of my UR5CDX CT 755 > paddle so that it acts like a cootie. I understand that this can be done > by using a mono phone jack adapter on the end of the CT 755 cable (which > terminates with a stereo jack) and plugging it into the "Key" port on > the K3. > > I can't find anything in any of my K3 manuals that cautions against this > - but I do have a vague recollection of seeing some caution of this > nature somewhere. > > Is there any reason I can't safely plug a mono adapter jack into the > "Key" port on the K3? > > Thanks, > > Brian K8GRR > > > > ------------------------------ > > Message: 9 > Date: Wed, 29 Apr 2020 17:37:54 +0000 > From: John Kosko > To: "Elecraft at mailman.qth.net" > Subject: Re: [Elecraft] Mail for Windows 10 > Message-ID: > > > Content-Type: text/plain; charset="Windows-1252" > > I?m running a one year old ASUS using Windows 10 and Hotmail/Outlook and Win10 is NOT in Win7 mode. I?m not aware of a problem, although I didn?t get any Elecraft emails yesterday?odd. > Regards, John K8TCT K3S s/n 11718 > > Sent from Mail for Windows 10 > > > > ------------------------------ > > Message: 10 > Date: Wed, 29 Apr 2020 19:56:04 +0200 > From: "Bob DeHaney" > To: > Subject: [Elecraft] Testing > Message-ID: <001c01d61e4f$7411c6a0$5c3553e0$@gmx.net> > Content-Type: text/plain; charset="utf-8" > > I was given my Conditional Test by W4MLE(SK) in 1960. He was also my Elmer and a great guy. > > Vy 73 de Bob DJ0RD/WU5T > > > > ------------------------------ > > Message: 11 > Date: Wed, 29 Apr 2020 11:12:49 -0700 > From: Phil Kane > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Power Supplies and Voltage drop > Message-ID: > Content-Type: text/plain; charset=utf-8 > > On 4/25/2020 8:21 PM, Bob McGraw K4TAX wrote: > >> Here is what I did to remedy the situation.??? I obtained two 10-32 x 2" >> brass screws from the hardware store.? I got 4 nuts, 2 for each screw, 4 >> flat washers, 2 for each screw and two wing nuts.?? I then cut the head >> off of each screw and filed a flat spot about 1/2 " long and deep enough >> to removed the threads. > > I fixed my brand-new Astron SS-50M a bit differently. One set screw on > the connection block was seized up, so Astron sent me two new blocks > with instructions to open the case and replace them. When I opened the > case I saw that the leads to the blocks had ring terminals held to the > blocks by a short screw. I removed the existing blocks and replaced > them with 10-32 x 2" brass screws. I used two short plates of ABS from > TAP Plastics to serve as insulated spacers (one inside the case and one > outside the case) and drilled the appropriate holes to permit the screws > to be held through the case with appropriate nuts and washers. The > leads to my power distribution board) are AWG 6 terminated in standard > electrical lugs held by massive set-screws and are fastened onto the > screws by appropriate nuts. If I have to remove them I keep a Spintite > (nut driver) nearby. Works great so far! > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > > > ------------------------------ > > Message: 12 > Date: Wed, 29 Apr 2020 11:32:33 -0700 > From: "Lynn W. Taylor, WB6UUT" > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Mail for Windows 10 > Message-ID: > <55e7ce40-2da5-3dfc-cfe7-faeee5749831 at ColdRocksHotBrooms.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > Ah, sadly, no. As much as I like to blame Microsoft, we have to start > with RFC-1341 and Multipurpose Independent Mail Extensions. > > Microsoft did not contribute to that RFC. > > MIME allows more than one formatting option. We had something called > "Rich Text" but Netscape brought us HTML as a formatting option, and > that made it possible to embed code that would load malware on your > computer. > > That's when List Servers got the ability to strip formatting -- it put a > stop to people blaming the list for the poor security in their OS. > > HTML is a poor choice, but it's also supported in just about every > E-Mail client. > > This is where we can blame Microsoft (some), but it's hard to render > HTML and detect all the possible issues. > > 73 -- Lynn, WB6UUT > > P.S. Thunderbird is much better, but this issue remains. > > On 4/29/20 7:04 AM, kk4kfg wrote: >> Respectfully I offer the following. >> >> So yet again Microsoft and Windows 10 does something absolutely stupid >> and against every known specification for a mail client and the offered >> "solution" is for others to fix it or mask a solution. > > > ------------------------------ > > Message: 13 > Date: Wed, 29 Apr 2020 11:33:32 -0700 > From: "Lynn W. Taylor, WB6UUT" > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Mail for Windows 10 > Message-ID: > <22e07ca6-0697-006a-0376-d8dcda6b4495 at ColdRocksHotBrooms.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > It depends on the version and how it is configured. > > On 4/29/20 8:20 AM, Lyn Norstad wrote: >> Apparently Microsoft Outlook has none of the issues being described. >> >> >> >> 73 >> >> Lyn, W0LEN >> >> >> >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave Cole >> Sent: Wednesday, April 29, 2020 9:46 AM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Mail for Windows 10 >> >> >> >> =====================================CUT==================================== >> = >> >> On 4/29/20 7:04 AM, kk4kfg wrote: >> >> Respectfully I offer the following. >> >> >> >> So yet again Microsoft and Windows 10 does something absolutely stupid >> >> and against every known specification for a mail client and the offered >> >> "solution" is for others to fix it or mask a solution. >> >> =====================================CUT==================================== >> = >> >> >> >> ...and that is why I run Linux as my main OS! >> >> >> >> 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 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 kx3.2 at coldrockshotbrooms.com >> > > > ------------------------------ > > Message: 14 > Date: Wed, 29 Apr 2020 20:05:08 +0000 > From: Mike Parkes > To: Elecraft Reflector > Subject: [Elecraft] KX3 internal battery charger normal behavior? (BT > * ) > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > I set a 12 hour charge cycle on some 2000mah Eneloops in the KX3. > After the charge cycle had completed the asterisk remained on when checking > voltage, showing BT*11.6V (using vfo B). Is that normal? > I checked Menu > Bat Charge, and it showed CHG OFF so the charging was > completed apparently but I wasn't sure about the ( * ) remaining on. > - Mike AB7RU > > > ------------------------------ > > Message: 15 > Date: Wed, 29 Apr 2020 13:25:20 -0700 > From: "Doug Faunt N6TQS +1-510-717-1197" > To: Elecraft at mailman.qth.net > Subject: [Elecraft] OT: The Colpitts mystery > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > I took the commercial tests in '69. I seem to recall having to learn > the various oscillator circuits. > I was an ATN2 on night check in VA-125 in Lemoore, CA. > The night check AT shop Chief wanted to get his 2nd class > Radiotelephone so he could work > on aircraft electronics when he retired, so he had the whole night > check shop studying. > I'd been doing electronics and radio for a number of years, so I was > teaching everyone. > A bunch of us went up to Fresno for the exam and I was the first one > done. I was also the only one > who got a 1st Radiotelephone, the rest got 3rd at best, even the Chief. > I managed to pick up a broadcast endorsement in SC after I got out, > and then many years later > when I started sailing on tall ships, I heard about GMDSS, so studied > that and added GMDSS Operator/Maintainer > with a Radar endorsement on top of the GROL that my 1st had turned > into. It turns out, for international > compliance, the USCG required a STCW-approved course to add GMDSS to > my Merchant Mariners Credential, > so I had to do a 10-day course, with practical evaluations, and essay > questions! So I did that, arguing with the > instructor the whole time, simce I gave correct answers, but not what > he expected. The other three people > in the course dropped out quickly- their company had sent them, but > they actually didn't need it on their MMC. > 73, doug > > > ------------------------------ > > Message: 16 > Date: Wed, 29 Apr 2020 13:58:06 -0700 > From: kevinr > To: Elecraft Reflector > Cc: Elecraft-KX at groups.io > Subject: [Elecraft] Evening Net Invitation notes, addenda, and errata > Message-ID: <1bc00ace-7718-4f93-c627-0bf82aafb04c at coho.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > Good Afternoon, > > ?? I have received a few messages about activities on 40 meters at my > chosen time and frequency.? CWT may push us up in frequency but I don't > want to get too far into the digital portion of the band.? The old > novice band may be better between 7100 and 7125 if the QRS folks don't > mind.? I plan to start around 7050 kHz and see how it goes.? The CWT > activity may not reach that high. > > ? As for procedures I will start with a preamble of some sort > explaining what we're trying to do.? Then call CQ.? I'll handle the > first round logging questions and comments.? Then I will pass net > control to whomever volunteers (or the one I pick :)? NCS duties are not > tough.? Just call CQ and take notes.? Work your group and choose the > next victim :)? When that thins out pass control back to me and I'll > list questions, answers, and comments.? One more call and then let the > net go free.? I have never closed the Elecraft CW Net, I just let it go > free. Occasionally contacts continue between the attendees.? WAS > contacts happen too.? It just feels wrong to assume one can control > activity.? It is hard enough to maintain control of a net :) > > ? Evening net starts at 8 PM PDT (0300z) on or near 7050 kHz unless > forced to move into the 7100-7125 range. > > ? 73, > > ???? Kevin.? KD5ONS > > - > > The play's the thing > > > > ------------------------------ > > Message: 17 > Date: Wed, 29 Apr 2020 14:14:11 -0700 > From: Fred Jensen > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > I'm pretty sure it was in the early 80's. > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 4/28/2020 9:27 PM, Jim Brown wrote: >> On 4/28/2020 4:16 PM, EricJ wrote: >>> but some time in the mid-50s it was given over to volunteer hams. >> >> My memory is that it was a LOT later than that. I'd guess late '70s to >> early '80s. >> >> 73, Jim K9YC > > > > ------------------------------ > > Message: 18 > Date: Wed, 29 Apr 2020 18:08:15 -0500 > From: John Simmons > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: <5055ac48-f2ab-6acd-9548-6296733f7162 at pinewooddata.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about > 6 months before the FCC testing ended. I wanted to get it out of the way > before the VE program started. Fear of the unknown, I guess. I worked as > a VE early on in the program. I've seen some abuses, but overall I think > it is a great change for us hams. > > 73, > -de John NI0K > > Fred Jensen wrote on 4/29/2020 4:14 PM: >> I'm pretty sure it was in the early 80's. >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> On 4/28/2020 9:27 PM, Jim Brown wrote: >>> On 4/28/2020 4:16 PM, EricJ wrote: >>>> but some time in the mid-50s it was given over to volunteer hams. >>> >>> My memory is that it was a LOT later than that. I'd guess late '70s >>> to early '80s. >>> >>> 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 > > > > ------------------------------ > > Message: 19 > Date: Wed, 29 Apr 2020 23:46:15 +0000 (UTC) > From: k7sss at aol.com > To: jasimmons at pinewooddata.com, Elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: <965634212.1698725.1588203975215 at mail.yahoo.com> > Content-Type: text/plain; charset=UTF-8 > > Hi all,This brings back old memories. In 1962, I was in Vocational School in St Paul, MN studying Electronics. My instructors told me to get a 1st Phone w radar endorsement as it would make it easier to get a job. So I did at the FCC office in St Paul, and since then every job I had, required a 1st or 2nd class and some jobs a radar endorsement.I had to renewed it by getting 5 endorsements from officials in charge of the stations. I did not like it when it was converted to General Radio Telephone and life time.I got my ham license in 2011 as I could not do CW. I tried but always failed. > 73Jim HK7SSS > In a message dated 4/29/2020 4:10:24 PM Pacific Standard Time, jasimmons at pinewooddata.com writes: > > I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about > 6 months before the FCC testing ended. I wanted to get it out of the way > before the VE program started. Fear of the unknown, I guess. I worked as > a VE early on in the program. I've seen some abuses, but overall I think > it is a great change for us hams. > > 73, > -de John NI0K > > > ------------------------------ > > Message: 20 > Date: Wed, 29 Apr 2020 17:45:26 -0700 > From: EricJ > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: > > > Content-Type: text/plain; charset=utf-8; format=flowed > > A google search brought up a number of websites with a history of ham > licensing. They all say exactly what I said. From Wikipedia: > > "In the 1950s and 1960s, Novice, Technician and Conditional exams were > given by licensees acting as volunteer examiners." > > https://en.wikipedia.org/wiki/Amateur_radio_licensing_in_the_United_States > > Volunteer examiners does not mean Volunteer Examiners (VE) as we've > known them since 1984. VE organizations are officially recognized by the > FCC. Before that, they were hams who volunteered to whoever asked to > administer the test, sign it, and mail it to the FCC. They were not part > of any officially recognized program as VE's are. They were just Joe Ham > whose friend, acquaintance or stranger asked them to give them the test. > The applicant sent away to the FCC for the test and gave it to Joe Ham > in a sealed envelope. I did the deed many times at K2USA when I was > stationed there in the 60's. I was just a guy with a General Class > license who volunteered to give them a code test and proctor a written test. > > Eric KE6US > > ex-K1DCK, WA6YCF, WB2PVW > > > On 4/29/2020 2:14 PM, Fred Jensen wrote: >> I'm pretty sure it was in the early 80's. >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> On 4/28/2020 9:27 PM, Jim Brown wrote: >>> On 4/28/2020 4:16 PM, EricJ wrote: >>>> but some time in the mid-50s it was given over to volunteer hams. >>> >>> My memory is that it was a LOT later than that. I'd guess late '70s >>> to early '80s. >>> >>> 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 eric_csuf at hotmail.com . > > > ------------------------------ > > Message: 21 > Date: Wed, 29 Apr 2020 17:52:59 -0700 > From: Macy monkeys > To: John Simmons > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: <55D57003-1297-4D2F-9DAD-E621A5D48D4D at charter.net> > Content-Type: text/plain; charset=us-ascii > > I took my General at the FCC office downtown Portland in the late 60s. The examiner was a tough and gruff staffer named Francis McCann. IMHO, he was extra tough on 14 year olds, hi. You know my heart was racing when that series of V's came through those headphones! > > John K7FD > >> On Apr 29, 2020, at 4:08 PM, John Simmons wrote: >> >> I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about 6 months before the FCC testing ended. I wanted to get it out of the way before the VE program started. Fear of the unknown, I guess. I worked as a VE early on in the program. I've seen some abuses, but overall I think it is a great change for us hams. >> >> 73, >> -de John NI0K >> >> Fred Jensen wrote on 4/29/2020 4:14 PM: >>> I'm pretty sure it was in the early 80's. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>>> On 4/28/2020 9:27 PM, Jim Brown wrote: >>>>> On 4/28/2020 4:16 PM, EricJ wrote: >>>>> but some time in the mid-50s it was given over to volunteer hams. >>>> >>>> My memory is that it was a LOT later than that. I'd guess late '70s to early '80s. >>>> >>>> 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 >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 > > > > ------------------------------ > > Message: 22 > Date: Wed, 29 Apr 2020 21:23:05 -0400 > From: "Brian Denley" > To: "elecraft at mailman.qth.net" > Subject: Re: [Elecraft] Mail for Windows 10 > Message-ID: > Content-Type: text/plain; charset="utf-8" > > Test > > Brian KB1VBF > > Sent from Mail for Windows 10 > > > > > ------------------------------ > > Message: 23 > Date: Wed, 29 Apr 2020 19:22:59 -0700 > From: Phil Kane > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: <5a0f6d46-8af4-f662-8c8b-336ec2e77c74 at kanafi.org> > Content-Type: text/plain; charset=utf-8 > > On 4/29/2020 4:46 PM, Jim H via Elecraft wrote: > >> I did not like it when it was converted to General Radio Telephone and life time > > You weren't alone. I was one of the field supervisors whose opinion was > being considered by the committee that dealt on how to do the > transition, but the handwriting was on the wall. Ditto for the amateur > radio VE testing transition. > > Blame me for suggesting the new name - it's the international name of > that license but few of the members recognized that. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > > > ------------------------------ > > Message: 24 > Date: Wed, 29 Apr 2020 19:32:31 -0700 > From: Phil Kane > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: > Content-Type: text/plain; charset=utf-8 > > On 4/29/2020 5:52 PM, Macy monkeys wrote: > >> I took my General at the FCC office downtown Portland in the late >> 60s. The examiner was a tough and gruff staffer named Francis McCann. >> IMHO, he was extra tough on 14 year olds, hi. You know my heart was >> racing when that series of V's came through those headphones! > > Frank McCann was one of the old timers when I joined the agency in 1967. > By that time he was the Engineer in Charge of the Portland Office but > the EIC did a lot of the journeyman jobs in those smaller offices. When > he retired in the late 1970s (or was it the early 1980s) I applied for > his job but they had to give it to someone else whose office was being > closed and I continued at the San Francisco Office until I retired in > 1995. I have no idea what happened to him after that. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > >> From a Clearing in the Silicon Forest > Beaverton (Washington County) Oregon > > > ------------------------------ > > Message: 25 > Date: Wed, 29 Apr 2020 20:15:39 -0700 > From: kevinr > To: Elecraft Reflector > Subject: [Elecraft] Elecraft Evening Net Report > Message-ID: <08f0eadd-2cfd-dd1e-077c-b34d2a341f11 at coho.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > Good Evening, > > ?? Conditions were not too good for the inaugural evening event. > However, I was not skunked. > > ? On 7050.5 kHz at 0300z: > > KL7CW - Rick - AK > > > He was much weaker than either of our last two contacts.? He was S9 on > 20 meters and S7 on 40 meters.? Tonight he was around 559 with QSB from > 3 to 6.? Not very much noise which is normally a bad sign.? Higher noise > usually means I am hearing a broader area of the country. > > But nothing ventured nothing gained.? I started opening the net around > 0255z and continued until 0309z.? I did not fail which is always a > plus.? Next week I'll try again and maybe the sun will cooperate.? There > were two old sunspots a few days back and new one forming today.? That > gives me hope that the sun won't remain blank forever. > > ?? Until next week stay well, > > ????? Kevin.? KD5ONS > > - > > > > ------------------------------ > > Message: 26 > Date: Wed, 29 Apr 2020 23:44:25 -0400 > From: Nr4c > To: k2asp at arrl.net > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] OT: The Colpitts mystery > Message-ID: > Content-Type: text/plain; charset=utf-8 > > Will this ?Mystery? ever be solved? > > Sent from my iPhone > ...nr4c. bill > > >> On Apr 29, 2020, at 10:25 PM, Phil Kane wrote: >> >> ?On 4/29/2020 4:46 PM, Jim H via Elecraft wrote: >> >>> I did not like it when it was converted to General Radio Telephone and life time >> >> You weren't alone. I was one of the field supervisors whose opinion was >> being considered by the committee that dealt on how to do the >> transition, but the handwriting was on the wall. Ditto for the amateur >> radio VE testing transition. >> >> Blame me for suggesting the new name - it's the international name of >> that license but few of the members recognized that. >> >> 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 nr4c at widomaker.com > > > ------------------------------ > > _______________________________________________ > Elecraft mailing list > Post to: Elecraft at mailman.qth.net > http://mailman.qth.net/mailman/listinfo/elecraft > You must be a subscriber to post. > Elecraft web page: http://www.elecraft.com > > End of Elecraft Digest, Vol 192, Issue 43 > ***************************************** From KX3.2 at ColdRocksHotBrooms.com Thu Apr 30 10:19:29 2020 From: KX3.2 at ColdRocksHotBrooms.com (Lynn W. Taylor, WB6UUT) Date: Thu, 30 Apr 2020 07:19:29 -0700 Subject: [Elecraft] Which Rig? (was Re: Elecraft Digest, Vol 192, Issue 43) In-Reply-To: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> References: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> Message-ID: <705dd865-dc1c-99da-8a9f-6ac66dc3bb2b@ColdRocksHotBrooms.com> Welcome, Tommy, Since you use the list in "digest mode" please delete all but the most relevant parts of the message, or we get it all again (and it will all be repeated in the next digest!) I'm sure you'll get lots of help, but Amateur Radio is such a diverse hobby that you'll get wildly different answers depending on what you like. For example, the K4 is going to be amazing, but it's the wrong radio if you like to go hiking and operate from a major hilltop somewhere. Ask me about the best CW rig, and I'll just shrug. Start talking about digital modes and I'll have useful comments. 73 -- Lynn, WB6UUT On 4/30/20 6:22 AM, Tommy Judson via Elecraft wrote: > Ok, joined this group even though I don?t own an Elecraft radio - yet. I?m wanting an Elecraft Elmer to help me understand which rig could be ?the one?. What say someone please? Tommy From david.n5dch at gmail.com Thu Apr 30 10:24:02 2020 From: david.n5dch at gmail.com (David Herring) Date: Thu, 30 Apr 2020 08:24:02 -0600 Subject: [Elecraft] Which Rig? (was Re: Elecraft Digest, Vol 192, Issue 43) In-Reply-To: <705dd865-dc1c-99da-8a9f-6ac66dc3bb2b@ColdRocksHotBrooms.com> References: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> <705dd865-dc1c-99da-8a9f-6ac66dc3bb2b@ColdRocksHotBrooms.com> Message-ID: <30B96302-3985-4815-9875-53DF891C3C67@gmail.com> Tommy, Lynn?s right?it would be helpful if you can tell us how you use or plan to use a rig. Lot of helpful folks here so you will get lots of suggestions..l 73, David N5DCH > On Apr 30, 2020, at 8:19 AM, Lynn W. Taylor, WB6UUT wrote: > > Welcome, Tommy, > > Since you use the list in "digest mode" please delete all but the most relevant parts of the message, or we get it all again (and it will all be repeated in the next digest!) > > I'm sure you'll get lots of help, but Amateur Radio is such a diverse hobby that you'll get wildly different answers depending on what you like. > > For example, the K4 is going to be amazing, but it's the wrong radio if you like to go hiking and operate from a major hilltop somewhere. > > Ask me about the best CW rig, and I'll just shrug. Start talking about digital modes and I'll have useful comments. > > 73 -- Lynn, WB6UUT > > On 4/30/20 6:22 AM, Tommy Judson via Elecraft wrote: >> Ok, joined this group even though I don?t own an Elecraft radio - yet. I?m wanting an Elecraft Elmer to help me understand which rig could be ?the one?. What say someone please? Tommy > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 n6lrv at outlook.com Thu Apr 30 10:31:22 2020 From: n6lrv at outlook.com (n6lrv at outlook.com) Date: Thu, 30 Apr 2020 14:31:22 +0000 Subject: [Elecraft] Boxes of tubes? What todo? In-Reply-To: <1725599.apG8zGF9Qg@linux-veff> References: <1725599.apG8zGF9Qg@linux-veff> Message-ID: There's still a demand for some electron tubes and just mentioning it on this group will get you some attention. There are many other email groups as well as ebay, selling services on Facebook, Instagram, and other social media platforms, Craigslist, etc. through which you could reach people interested in tubes. Interested persons will undoubtedly like to see a list by tube number so I suggest you inventory the tubes and make a list that you can email to others. Gary, N6LRV ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of kt5te at watershipfarm.com Sent: Thursday, April 30, 2020 4:56 AM To: elecraft at mailman.qth.net Subject: [Elecraft] Boxes of tubes? What todo? I know this is unusual for the list, but I was hoping someone could send me in the right direction. In the attic of a house that was being refurbished for a office I found boxes full of tubes and other stuff from the 40s & 50s. I hated to pitch these items and figured somebody might want them, so brought it all home. :-) The house has been empty for years, but I did find a newspaper clipping and a QSO card from the 50s for Maj. Cantrell. He was called "Misawa's Iron Jaw". I bet you can guess his MOS? What do I do...? -- 73, William KT5TE ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n6lrv at outlook.com From gdanner12 at gmail.com Thu Apr 30 10:39:24 2020 From: gdanner12 at gmail.com (Gmail - George) Date: Thu, 30 Apr 2020 10:39:24 -0400 Subject: [Elecraft] Mail for Windows 10 In-Reply-To: <20200430012413.28E30149B70F@mail.qsl.net> References: <031f01d61dc8$0ec7fb20$2c57f160$@LNAINC.com><497fcd2c-097e-b058-9376-5f8e5ec6a75a@foothill.net><61086335.PgmnqnUhCG@linux-veff> <20200430012413.28E30149B70F@mail.qsl.net> Message-ID: Works from Windows Live Mail 73 George AI4VZ -----Original Message----- From: Brian Denley Test Brian KB1VBF Sent from Mail for Windows 10 From mikekopacki at gmail.com Thu Apr 30 11:06:20 2020 From: mikekopacki at gmail.com (NJMike) Date: Thu, 30 Apr 2020 08:06:20 -0700 (MST) Subject: [Elecraft] K2 WTB KAT100-1 Message-ID: <1588259180623-0.post@n2.nabble.com> I?m looking to buy the KAT100-1 antenna tuner for the K2. I believe the -1 model is the slim model that the K2 can sit on top of. I don?t want the -2 model which I think is the enclosure that is the same size as the K2. Elecraft has the tuner on back order for 2 weeks AFTER Covid-19 restrictions are lifted so their back order is somewhat obscure (which I understand). I will consider both the kit or already assembled. Thanks, Mike NJ2OM -- Sent from: http://elecraft.365791.n2.nabble.com/ From ben.gelb at gmail.com Thu Apr 30 11:07:08 2020 From: ben.gelb at gmail.com (Ben Gelb) Date: Thu, 30 Apr 2020 08:07:08 -0700 Subject: [Elecraft] [K3S] intermittent RF path interruption In-Reply-To: References: <00F96F4E-A3BC-47EA-B124-4662D42EF9A7@widomaker.com> Message-ID: 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 k2asp at kanafi.org Thu Apr 30 12:36:05 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 30 Apr 2020 09:36:05 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <202004300531.03U5VF6p031468@mail42c28.carrierzone.com> References: <202004300531.03U5VF6p031468@mail42c28.carrierzone.com> Message-ID: <74435645-a0e7-4f7a-6802-62c15476ccc2@kanafi.org> On 4/29/2020 10:31 PM, Edward R Cole wrote: > CW test had been downgraded to a multiple question exam about plain > language text message vs the five mixed character groups back in Detroit. The ham CW test was always plain language text. 5-character groups were only for the Radiotelegraph CW exams. 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 Apr 30 12:38:24 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 30 Apr 2020 09:38:24 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <202004300531.03U5VF6p031468@mail42c28.carrierzone.com> References: <202004300531.03U5VF6p031468@mail42c28.carrierzone.com> Message-ID: <146e9d46-8d3c-bb44-8ae5-70c5de8de727@kanafi.org> On 4/29/2020 10:31 PM, Edward R Cole wrote: > Missed two questions on the written exam (because I knew more than the > test designers and many of the answers were incorrect). But it was a product of the private sector.... :) 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From jim at audiosystemsgroup.com Thu Apr 30 13:09:43 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 30 Apr 2020 10:09:43 -0700 Subject: [Elecraft] Elecraft Digest, Vol 192, Issue 43 In-Reply-To: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> References: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> Message-ID: On 4/30/2020 6:22 AM, Tommy Judson via Elecraft wrote: > I?m wanting an Elecraft Elmer to help me understand which rig could be ?the one?. How do you operate? What sort of on-the-air activities? 73, Jim K9YC From k6dgw at foothill.net Thu Apr 30 13:15:17 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Thu, 30 Apr 2020 10:15:17 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <5a0f6d46-8af4-f662-8c8b-336ec2e77c74@kanafi.org> Message-ID: <63b78d2d-ef76-435f-b98d-dfb5d86464bf@foothill.net> Probably not Bill since it has drifted way off original topic and continues to do so.? I posed the original question.? My guess is that the Colpitts oscillator was probably the easiest to get stable [or nearly so] of the extant designs then because it uses capacitive feedback.? It would be the most familiar to examinees and the FCC just settled on it.? I remember that some only had to draw the schematic, others [including me] had to complete a partial schematic and answer questions. Incidentally, Colpitts was also on my 1P and 2T exams.? Since the only copier then was Thermofax, once they had a question set about it, they probably just stuck to it. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/29/2020 8:44 PM, Nr4c wrote: > Will this ?Mystery? ever be solved? > > Sent from my iPhone > ...nr4c. bill > > From k6dgw at foothill.net Thu Apr 30 13:35:23 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Thu, 30 Apr 2020 10:35:23 -0700 Subject: [Elecraft] New Mystery: Copying groups vs plain language text In-Reply-To: <74435645-a0e7-4f7a-6802-62c15476ccc2@kanafi.org> References: <202004300531.03U5VF6p031468@mail42c28.carrierzone.com> <74435645-a0e7-4f7a-6802-62c15476ccc2@kanafi.org> Message-ID: <138d464b-7b7a-4b86-0560-66c7fb32af32@foothill.net> Why were code tests with groups almost always at a slower speed than plain text? I had to copy 5-character groups at 16 [I think], and plain text at 20 [I also think ... might have been 25, it was a very long time ago] for the 2nd Telegraph.? I've never sat a military circuit to copy groups, all my experience with groups was practice, the test, and WX reports which sort of approximate groups.? However, I find groups to be easier copy than plain text, especially on a mill of teletype tape perforator keyboard.? The transition to "Ear-to-Fingers" mode with nothing passing through brain is almost instantaneous and permanent for the duration. With plain language text, I'll sometimes rouse from that state, try to make sense of what I'm copying and have to catch up. Just curious, lots of folks here here have copied groups for a living and might know the answer.? Incidentally, Jettie Hill, W6RFF [SK], once told me that in WW2, he had to learn to sight-read inked tape at 45 or 50 WPM.? I think that would have caged my eyeballs. [:=) 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/30/2020 9:36 AM, Phil Kane wrote: > On 4/29/2020 10:31 PM, Edward R Cole wrote: > >> CW test had been downgraded to a multiple question exam about plain >> language text message vs the five mixed character groups back in Detroit. > The ham CW test was always plain language text. 5-character groups were > only for the Radiotelegraph CW exams. > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > > From n6kr at elecraft.com Thu Apr 30 14:05:47 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 30 Apr 2020 11:05:47 -0700 Subject: [Elecraft] DPOTA, anyone? Message-ID: DPOTA (n): Deserted Parks on the Air. (This activity is not to be confused with anticovidespotism, an emerging movement to thwart lockdowns.) * * * In the midst of all the fine Spring weather we're having, are you getting out, in both senses of the phrase? I'm finding no shortage of places to operate from. In northern California, at least, the trick is to follow obscure, little-used roads that lead to alternative entrances to parks, BLM land, etc. (Hint: Tunitas Creek road. Route 130 on the east side of Mt. Hamilton. There are many others.) Happy adventuring! Stay 2 meters from other operators, keep a bandana handy for emergencies, and don't forget your KX-line radio :) 73, Wayne N6KR From norrislawfirm2 at gmail.com Thu Apr 30 14:18:33 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Thu, 30 Apr 2020 11:18:33 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> Message-ID: I took my Novice exam from another ham in 1972, but my general and advanced at the FCC in 1977 or 1978. 73 Eric WD6DBM On Tue, Apr 28, 2020, 9:27 PM Jim Brown wrote: > On 4/28/2020 4:16 PM, EricJ wrote: > > but some time in the mid-50s it was given over to volunteer hams. > > My memory is that it was a LOT later than that. I'd guess late '70s to > early '80s. > > 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 norrislawfirm2 at gmail.com > From norrislawfirm2 at gmail.com Thu Apr 30 14:32:21 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Thu, 30 Apr 2020 11:32:21 -0700 Subject: [Elecraft] OT: The Great KPA Fan Mystery Message-ID: Why does the KPA500 suck air from the top vents and blow it out the back, and the KPA1500 sucks air from the back and blows it out the top vents? Was there a coup in Elecraft engineering? Will future Elecraftologists be looking for overwritten cartouches on the fan control boards? And who, exactly, is buried in KV64? 73 Eric WD6DBM From nr4c at widomaker.com Thu Apr 30 14:45:41 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 30 Apr 2020 14:45:41 -0400 Subject: [Elecraft] Elecraft Digest, Vol 192, Issue 43 In-Reply-To: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> References: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> Message-ID: <1164A0E5-4897-40B9-A28D-58AC93C053E3@widomaker.com> Well, Tommy. What do you want to do? If you want to build a radio from the PCB up, the K2 may be just the right choice. However if you want a 100 Watt radio with plenty of expand ability, the K3S is a good bet. However I don?t think Elecraft is selling them right now. But there are many are available now in the used market. Or you could get on the waiting list for a K4. If you want a QRP rig, any of their rigs are available as QRP radios. This is the first questions you need to answer. Sent from my iPhone ...nr4c. bill > On Apr 30, 2020, at 9:25 AM, Tommy Judson via Elecraft wrote: > > ?Ok, joined this group even though I don?t own an Elecraft radio - yet. I?m wanting an Elecraft Elmer to help me understand which rig could be ?the one?. What say someone please? Tommy > >> On Apr 29, 2020, at 10:44 PM, elecraft-request at mailman.qth.net wrote: >> >> Send Elecraft mailing list submissions to >> elecraft at mailman.qth.net >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://mailman.qth.net/mailman/listinfo/elecraft >> or, via email, send a message with subject or body 'help' to >> elecraft-request at mailman.qth.net >> >> You can reach the person managing the list at >> elecraft-owner at mailman.qth.net >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Elecraft digest..." >> >> >> Today's Topics: >> >> 1. Re: Elecraft] OT: The Colpitts mystery (Dave Fugleberg) >> 2. Re: Mail for Windows 10 (Jim Brown) >> 3. KX3 Firmware (Ray Soifer) >> 4. Evening Net Announcement & Invitation (kevinr) >> 5. Re: OT: The Colpitts mystery (Roger D Johnson) >> 6. Re: Elecraft Digest, Vol 192, Issue 42 (Martin) >> 7. Re: Mail for Windows 10 (Phil Kane) >> 8. K3 - Using Mono Phone Jack Adapter in "Key" Port (Brian Deuby) >> 9. Re: Mail for Windows 10 (John Kosko) >> 10. Testing (Bob DeHaney) >> 11. Re: Power Supplies and Voltage drop (Phil Kane) >> 12. Re: Mail for Windows 10 (Lynn W. Taylor, WB6UUT) >> 13. Re: Mail for Windows 10 (Lynn W. Taylor, WB6UUT) >> 14. KX3 internal battery charger normal behavior? (BT * ) >> (Mike Parkes) >> 15. OT: The Colpitts mystery (Doug Faunt N6TQS +1-510-717-1197) >> 16. Evening Net Invitation notes, addenda, and errata (kevinr) >> 17. Re: OT: The Colpitts mystery (Fred Jensen) >> 18. Re: OT: The Colpitts mystery (John Simmons) >> 19. Re: OT: The Colpitts mystery (k7sss at aol.com) >> 20. Re: OT: The Colpitts mystery (EricJ) >> 21. Re: OT: The Colpitts mystery (Macy monkeys) >> 22. Re: Mail for Windows 10 (Brian Denley) >> 23. Re: OT: The Colpitts mystery (Phil Kane) >> 24. Re: OT: The Colpitts mystery (Phil Kane) >> 25. Elecraft Evening Net Report (kevinr) >> 26. Re: OT: The Colpitts mystery (Nr4c) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Wed, 29 Apr 2020 11:38:31 -0500 >> From: Dave From jc_ki7y at q.com Thu Apr 30 14:47:28 2020 From: jc_ki7y at q.com (Jim Cassidy) Date: Thu, 30 Apr 2020 14:47:28 -0400 (EDT) Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> Message-ID: <134060891.266790839.1588272448704.JavaMail.zimbra@q.com> I did all the FCC required licenses at Portland FCC. General class while in High School, all commercial licenses including 3rd class radiotelegraph and Amateur Extra around early 1960s. And with a 10 year broadcasting career usually yearly visits from McCann or another FCC engineer Burson at the broadcast station inspections. 73 KI7Y ----- Original Message ----- From: "Phil Kane" To: "Elecraft" Sent: Wednesday, April 29, 2020 7:32:31 PM Subject: Re: [Elecraft] OT: The Colpitts mystery On 4/29/2020 5:52 PM, Macy monkeys wrote: > I took my General at the FCC office downtown Portland in the late > 60s. The examiner was a tough and gruff staffer named Francis McCann. > IMHO, he was extra tough on 14 year olds, hi. You know my heart was > racing when that series of V's came through those headphones! Frank McCann was one of the old timers when I joined the agency in 1967. By that time he was the Engineer in Charge of the Portland Office but the EIC did a lot of the journeyman jobs in those smaller offices. When he retired in the late 1970s (or was it the early 1980s) I applied for his job but they had to give it to someone else whose office was being closed and I continued at the San Francisco Office until I retired in 1995. I have no idea what happened to him after that. 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 jc_ki7y at q.com From a.durbin at msn.com Thu Apr 30 15:01:10 2020 From: a.durbin at msn.com (Andy Durbin) Date: Thu, 30 Apr 2020 19:01:10 +0000 Subject: [Elecraft] OT: The Great KPA Fan Mystery Message-ID: "Why does the KPA500 suck air from the top vents and blow it out the back" I asked quite a while ago what thermal analysis had been performed on the KPA500 and got no answer here. It would seem reasonable for the fan to augment natural convection rather than oppose it. Kenwood built a batch of TS-590SG with the fans installed backwards but eventually they corrected the mistake in production. I don't think Elecraft ever decided the KPA500 fan was the wrong way round. Now for a KPA500 mystery question - does heat flow from the Z bracket into the heatsink or does it flow from the heatsink to the Z bracket? 73, Andy, k3wyc From n6kr at elecraft.com Thu Apr 30 15:05:06 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 30 Apr 2020 12:05:06 -0700 Subject: [Elecraft] Elecraft Digest, Vol 192, Issue 43 In-Reply-To: <1164A0E5-4897-40B9-A28D-58AC93C053E3@widomaker.com> References: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> <1164A0E5-4897-40B9-A28D-58AC93C053E3@widomaker.com> Message-ID: Hi Tommy, If you're interested in field operating -- Field Day, mini-DXpeditions, HFpack, etc. -- you might consider a KX3 or KX2. The KX2 is my personal go-to radio for all of these activities because it's so small (half the size of the KX3) while still putting out up to 10 W from its internal battery. Both rigs have wide-range ATUs built-in so you can just toss a wire in a tree. They also have attached keyer paddles. The KX2 also has a built-in mic (you can use our MH3 with either rig). I use mine HT-style with an AX1 whip, and have worked all over the world this way while hiking (/PM, or Pedestrian Mobile). It's a challenge, but that's half the fun with QRP (low-power operating). You can use either rig as a 100 W home station, when desired, by adding a KXPA100 amp (and optional KXAT100 ATU module). The KX3 also has an optional panadapter (PX3). We designed these rigs to be extremely flexible...hand-held, trailside, bike, mobile, or home station. Let me know if you have further questions. 73, Wayne N6KR > On Apr 30, 2020, at 9:25 AM, Tommy Judson via Elecraft wrote: > > ?Ok, joined this group even though I don?t own an Elecraft radio - yet. I?m wanting an Elecraft Elmer to help me understand which rig could be ?the one?. What say someone please? Tommy From n6kr at elecraft.com Thu Apr 30 15:06:20 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 30 Apr 2020 12:06:20 -0700 Subject: [Elecraft] OT: The Great KPA Fan Mystery In-Reply-To: References: Message-ID: <87517CED-A3BF-4DF7-8FC6-9F69259144A4@elecraft.com> For each product, we experimented with air flow direction and many other variables. The current configurations produced the fastest and most consistent cooling. 73, Wayne N6KR > On Apr 30, 2020, at 12:01 PM, Andy Durbin wrote: > > "Why does the KPA500 suck air from the top vents and blow it out the back" > > I asked quite a while ago what thermal analysis had been performed on the KPA500 and got no answer here. It would seem reasonable for the fan to augment natural convection rather than oppose it. > > Kenwood built a batch of TS-590SG with the fans installed backwards but eventually they corrected the mistake in production. I don't think Elecraft ever decided the KPA500 fan was the wrong way round. > > Now for a KPA500 mystery question - does heat flow from the Z bracket into the heatsink or does it flow from the heatsink to the Z bracket? > > 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 n6kr at elecraft.com From k1ike at snet.net Thu Apr 30 15:09:05 2020 From: k1ike at snet.net (JOE) Date: Thu, 30 Apr 2020 15:09:05 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: Message-ID: <2bec334e-9965-a16b-00ea-8156218b1089@snet.net> On 4/30/2020 1:35 PM, elecraft-request at mailman.qth.net wrote: > "In the 1950s and 1960s, Novice, Technician and Conditional exams were > given by licensees acting as volunteer examiners." I took my novice test when I was 11 years old from W1ZWG at his home. This was the summer of 1958 and I believe that any General class or above could give a test for Novice and Technician class licenses. 73, Joe, K1ike From anyone1545 at gmail.com Thu Apr 30 15:30:25 2020 From: anyone1545 at gmail.com (Raymond) Date: Thu, 30 Apr 2020 13:30:25 -0600 Subject: [Elecraft] DPOTA, anyone? In-Reply-To: References: Message-ID: <9689A33F-41C0-401E-877B-ECAACB8FC892@gmail.com> Extra points if contacts made with K4 Ray W8LYJ Sent from my iPhone > On Apr 30, 2020, at 12:07, Wayne Burdick wrote: > > ?DPOTA (n): Deserted Parks on the Air. (This activity is not to be confused with anticovidespotism, an emerging movement to thwart lockdowns.) > > * * * > > In the midst of all the fine Spring weather we're having, are you getting out, in both senses of the phrase? I'm finding no shortage of places to operate from. In northern California, at least, the trick is to follow obscure, little-used roads that lead to alternative entrances to parks, BLM land, etc. (Hint: Tunitas Creek road. Route 130 on the east side of Mt. Hamilton. There are many others.) > > Happy adventuring! Stay 2 meters from other operators, keep a bandana handy for emergencies, and don't forget your KX-line radio :) > > 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 anyone1545 at gmail.com From dave at nk7z.net Thu Apr 30 15:40:01 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 30 Apr 2020 12:40:01 -0700 Subject: [Elecraft] OT: The Great KPA Fan Mystery In-Reply-To: <87517CED-A3BF-4DF7-8FC6-9F69259144A4@elecraft.com> References: <87517CED-A3BF-4DF7-8FC6-9F69259144A4@elecraft.com> Message-ID: <97ffe4b5-1c17-af6e-bcab-f7c421ead2cc@nk7z.net> I wish you all had included a filter slot... :) 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/30/20 12:06 PM, Wayne Burdick wrote: > For each product, we experimented with air flow direction and many other variables. The current configurations produced the fastest and most consistent cooling. > > 73, > Wayne > N6KR > > >> On Apr 30, 2020, at 12:01 PM, Andy Durbin wrote: >> >> "Why does the KPA500 suck air from the top vents and blow it out the back" >> >> I asked quite a while ago what thermal analysis had been performed on the KPA500 and got no answer here. It would seem reasonable for the fan to augment natural convection rather than oppose it. >> >> Kenwood built a batch of TS-590SG with the fans installed backwards but eventually they corrected the mistake in production. I don't think Elecraft ever decided the KPA500 fan was the wrong way round. >> >> Now for a KPA500 mystery question - does heat flow from the Z bracket into the heatsink or does it flow from the heatsink to the Z bracket? >> >> 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 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 dave at nk7z.net > From jasimmons at pinewooddata.com Thu Apr 30 15:58:20 2020 From: jasimmons at pinewooddata.com (John Simmons) Date: Thu, 30 Apr 2020 14:58:20 -0500 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <134060891.266790839.1588272448704.JavaMail.zimbra@q.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> <134060891.266790839.1588272448704.JavaMail.zimbra@q.com> Message-ID: <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> Jim, All the broadcast inspections are now contracted out to private companies. 73, -de John NI0K Jim Cassidy wrote on 4/30/2020 1:47 PM: > I did all the FCC required licenses at Portland FCC. General class while in High School, all commercial licenses including 3rd class radiotelegraph and Amateur Extra around early 1960s. And with a 10 year broadcasting career usually yearly visits from McCann or another FCC engineer Burson at the broadcast station inspections. > > 73 KI7Y > > ----- Original Message ----- > From: "Phil Kane" > To: "Elecraft" > Sent: Wednesday, April 29, 2020 7:32:31 PM > Subject: Re: [Elecraft] OT: The Colpitts mystery > > On 4/29/2020 5:52 PM, Macy monkeys wrote: > >> I took my General at the FCC office downtown Portland in the late >> 60s. The examiner was a tough and gruff staffer named Francis McCann. >> IMHO, he was extra tough on 14 year olds, hi. You know my heart was >> racing when that series of V's came through those headphones! > Frank McCann was one of the old timers when I joined the agency in 1967. > By that time he was the Engineer in Charge of the Portland Office but > the EIC did a lot of the journeyman jobs in those smaller offices. When > he retired in the late 1970s (or was it the early 1980s) I applied for > his job but they had to give it to someone else whose office was being > closed and I continued at the San Francisco Office until I retired in > 1995. I have no idea what happened to him after that. > > 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 jc_ki7y at q.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 jasimmons at pinewooddata.com From k6dgw at foothill.net Thu Apr 30 16:11:40 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Thu, 30 Apr 2020 13:11:40 -0700 Subject: [Elecraft] P3-disappearing waterfall Message-ID: The waterfall on my P3 disappeared.? I suspect it might have been associated with starting N1MM+ but I don't know that.? The "Waterfall" menu setting shows the screen split like I want it, but when I exit that menu item, the WF is still missing. Any suggestions? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County PS:? This may be a sneaky way for COVID to keep me busy while stuck at home? From ray at collins05.plus.com Thu Apr 30 16:19:13 2020 From: ray at collins05.plus.com (raycollins) Date: Thu, 30 Apr 2020 13:19:13 -0700 (MST) Subject: [Elecraft] K3S High Current in 6 metre mode Message-ID: <1588277953357-0.post@n2.nabble.com> I have just tried 6 metre USB operation for the first time on my K3S and I notice that as soon as I key the transceiver (without speaking into the microphone), the transceiver draws a quiescent current of 18 Amps with a power meter indication of zero. When I speak into the microphone, the current reduces as the speech level increases and the power meter display seems to give a sensible indication. If I reduce the power setting to below 10 Watts and then key the transceiver, the quiescent current drops to about 3 Amps. These standing currents seem very high; is this to be expected? Almost looks like the power amp is Class A biased? Can anybody please explain what is happening? Ray M1FJL -- Sent from: http://elecraft.365791.n2.nabble.com/ From ghyoungman at gmail.com Thu Apr 30 16:21:41 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Thu, 30 Apr 2020 16:21:41 -0400 Subject: [Elecraft] P3-disappearing waterfall In-Reply-To: References: Message-ID: <79E24B6C-B230-4A47-9364-4026F83A5A34@gmail.com> Press ?DISP? on the P3 and see if it comes back ? Grant NQ5T > On Apr 30, 2020, at 4:11 PM, Fred Jensen wrote: > > The waterfall on my P3 disappeared. I suspect it might have been associated with starting N1MM+ but I don't know that. The "Waterfall" menu setting shows the screen split like I want it, but when I exit that menu item, the WF is still missing. Any suggestions? > > 73, > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > PS: This may be a sneaky way for COVID to keep me busy while stuck at home? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ghyoungman at gmail.com Thu Apr 30 16:26:28 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Thu, 30 Apr 2020 16:26:28 -0400 Subject: [Elecraft] P3-disappearing waterfall In-Reply-To: <79E24B6C-B230-4A47-9364-4026F83A5A34@gmail.com> References: <79E24B6C-B230-4A47-9364-4026F83A5A34@gmail.com> Message-ID: I was thinking PX3. On the P3 it's DISPLAY ? Grant NQ5T > On Apr 30, 2020, at 4:21 PM, Grant Youngman wrote: > > Press ?DISP? on the P3 and see if it comes back ? > > Grant NQ5T > > >> On Apr 30, 2020, at 4:11 PM, Fred Jensen wrote: >> >> The waterfall on my P3 disappeared. I suspect it might have been associated with starting N1MM+ but I don't know that. The "Waterfall" menu setting shows the screen split like I want it, but when I exit that menu item, the WF is still missing. Any suggestions? >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> PS: This may be a sneaky way for COVID to keep me busy while stuck at home? >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 ny9h at arrl.net Thu Apr 30 16:32:56 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Thu, 30 Apr 2020 16:32:56 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> <134060891.266790839.1588272448704.JavaMail.zimbra@q.com> <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> Message-ID: <3648797b-f17e-43d0-47de-e1777fec468e@arrl.net> why have an engineer on staff ?????? just shop a few services out for the best price. When I got my First Phone I thought I could find great job security .... but I twisted from broadcasting to sales....on the way home from my first interview with WAAF/WGRT I took a job in the audio industry...a career that lasted 40+ years. and when they wanted my P1 ticket to give me GROL I took a pass, as I was NOT going to give that up. bill On 4/30/2020 3:58 PM, John Simmons wrote: > Jim, > > All the broadcast inspections are now contracted out to private > companies. > > 73, > -de John NI0K > > Jim Cassidy wrote on 4/30/2020 1:47 PM: >> I did all the FCC required licenses at Portland FCC.? General class >> while in High School, all commercial licenses including 3rd class >> radiotelegraph and Amateur Extra around early 1960s.? And with a 10 >> year broadcasting career usually yearly visits from McCann or another >> FCC engineer Burson at the broadcast station inspections. >> >> 73 KI7Y >> >> ----- Original Message ----- >> From: "Phil Kane" >> To: "Elecraft" >> Sent: Wednesday, April 29, 2020 7:32:31 PM >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> >> On 4/29/2020 5:52 PM, Macy monkeys wrote: >> >>> I took my General at the FCC office downtown Portland in the late >>> 60s. The examiner was a tough and gruff staffer named Francis McCann. >>> IMHO, he was extra tough on 14 year olds, hi. You know my heart was >>> racing when that series of V's came through those headphones! >> Frank McCann was one of the old timers when I joined the agency in 1967. >> ? By that time he was the Engineer in Charge of the Portland Office but >> the EIC did a lot of the journeyman jobs in those smaller offices.? When >> he retired in the late 1970s (or was it the early 1980s) I applied for >> his job but they had to give it to someone else whose office was being >> closed and I continued at the San Francisco Office until I retired in >> 1995.? I have no idea what happened to him after that. >> >> 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 jc_ki7y at q.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 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 ny9h at arrl.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From k6dgw at foothill.net Thu Apr 30 16:34:27 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Thu, 30 Apr 2020 13:34:27 -0700 Subject: [Elecraft] P3-disappearing waterfall - SOLVED In-Reply-To: References: <79E24B6C-B230-4A47-9364-4026F83A5A34@gmail.com> Message-ID: Indeed!? Thank you Grant, I never touch that button and it's in a shadow behind the corner of the computer monitor.? Actually, I forgot it was there. [:=) 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/30/2020 1:26 PM, Grant Youngman wrote: > I was thinking PX3. On the P3 it's DISPLAY ? > > Grant NQ5T > >> On Apr 30, 2020, at 4:21 PM, Grant Youngman wrote: >> >> Press ?DISP? on the P3 and see if it comes back ? >> >> Grant NQ5T >> From ve3nr at bell.net Thu Apr 30 16:46:04 2020 From: ve3nr at bell.net (Bert) Date: Thu, 30 Apr 2020 16:46:04 -0400 Subject: [Elecraft] KX3 Sidetone volume using PHONES jack Message-ID: <34e37efb-27de-a97c-b2b1-36b67521a780@bell.net> Using headphones or external speaker plugged in to the PHONES jack, the side tone level is much lower than listening to the internal speaker? I have been trying to set the level with MON but doesn't make any difference. Bert VE3NR From Lyn at LNAINC.com Thu Apr 30 16:51:59 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Thu, 30 Apr 2020 15:51:59 -0500 Subject: [Elecraft] OT: The Great KPA Fan Mystery In-Reply-To: <97ffe4b5-1c17-af6e-bcab-f7c421ead2cc@nk7z.net> References: <87517CED-A3BF-4DF7-8FC6-9F69259144A4@elecraft.com> <97ffe4b5-1c17-af6e-bcab-f7c421ead2cc@nk7z.net> Message-ID: <02c201d61f31$320a1b30$961e5190$@LNAINC.com> You just answered the question, Dave - and it's a two-fold solution for the KPA500: 1) There is likely less dust on the top than in the rat's nest of wires and cables found behind the unit (at least that's the case with mine, since it sits within a small shelving unit), and 2) You can easily lay a filter pad on top of the KPA500. Problem solved. You're welcome. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave Cole Sent: Thursday, April 30, 2020 2:40 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] OT: The Great KPA Fan Mystery I wish you all had included a filter slot... :) 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 4/30/20 12:06 PM, Wayne Burdick wrote: > For each product, we experimented with air flow direction and many other variables. The current configurations produced the fastest and most consistent cooling. > > 73, > Wayne > N6KR > > >> On Apr 30, 2020, at 12:01 PM, Andy Durbin wrote: >> >> "Why does the KPA500 suck air from the top vents and blow it out the back" >> >> I asked quite a while ago what thermal analysis had been performed on the KPA500 and got no answer here. It would seem reasonable for the fan to augment natural convection rather than oppose it. >> >> Kenwood built a batch of TS-590SG with the fans installed backwards but eventually they corrected the mistake in production. I don't think Elecraft ever decided the KPA500 fan was the wrong way round. >> >> Now for a KPA500 mystery question - does heat flow from the Z bracket into the heatsink or does it flow from the heatsink to the Z bracket? >> >> 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 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 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 lyn at lnainc.com From ghyoungman at gmail.com Thu Apr 30 17:13:55 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Thu, 30 Apr 2020 17:13:55 -0400 Subject: [Elecraft] KX3 Sidetone volume using PHONES jack In-Reply-To: <34e37efb-27de-a97c-b2b1-36b67521a780@bell.net> References: <34e37efb-27de-a97c-b2b1-36b67521a780@bell.net> Message-ID: Are you sure you have pressed MON and are changing the monitor volume, and not just the main AF gain? MON volume is independent of AF gain. Mine seems to work just fine. I rarely use the internal speaker, and generally only use headphones or an external powered speaker. Just verified that it was working properly ? plenty of monitor level. Grant NQ5T > On Apr 30, 2020, at 4:46 PM, Bert wrote: > > Using headphones or external speaker plugged in to the PHONES jack, > the side tone level is much lower than listening to the internal speaker? > > I have been trying to set the level with MON but doesn't make any difference. > > Bert VE3NR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 c-hawley at illinois.edu Thu Apr 30 17:34:11 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Thu, 30 Apr 2020 21:34:11 +0000 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <678502c8-57e2-aec5-9b21-17fd67f18fbc@blomand.net> <254de304-0578-9b4a-f6c7-640d36d6e320@gmail.com> <68b6b65a-bc3b-f1e1-a982-668691fd8f81@comcast.net> <3f87c024-09aa-7592-2634-4da7f31dfc4f@audiosystemsgroup.com> <198e32f0-cba1-9ccd-db1d-0a4d3c83099a@w4bqp.net> <64d7d8c4-e0d7-805a-efe9-c6aa5a148db4@pinewooddata.com> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com>, Message-ID: The Heathkit AT1 has a Colpitts 6AG7 0scillator. Just helping to solve the mystery... Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW aka Jack, BMW Motorcycles ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Eric Norris Sent: Thursday, April 30, 2020 1:18 PM To: jim at audiosystemsgroup.com Cc: elecraft at mailman qth. net Subject: Re: [Elecraft] OT: The Colpitts mystery I took my Novice exam from another ham in 1972, but my general and advanced at the FCC in 1977 or 1978. 73 Eric WD6DBM On Tue, Apr 28, 2020, 9:27 PM Jim Brown wrote: > On 4/28/2020 4:16 PM, EricJ wrote: > > but some time in the mid-50s it was given over to volunteer hams. > > My memory is that it was a LOT later than that. I'd guess late '70s to > early '80s. > > 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 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 c-hawley at illinois.edu From kengkopp at gmail.com Thu Apr 30 17:03:25 2020 From: kengkopp at gmail.com (Ken G Kopp) Date: Thu, 30 Apr 2020 15:03:25 -0600 Subject: [Elecraft] BC station inspections In-Reply-To: <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> <134060891.266790839.1588272448704.JavaMail.zimbra@q.com> <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> Message-ID: Local 2-way friend's shop here in Montana has several under contract. FWIW 73 K0PP On Thu, Apr 30, 2020, 13:59 John Simmons wrote: > Jim, > > All the broadcast inspections are now contracted out to private companies. > > 73, > -de John NI0K > > Jim Cassidy wrote on 4/30/2020 1:47 PM: > > I did all the FCC required licenses at Portland FCC. General class > while in High School, all commercial licenses including 3rd class > radiotelegraph and Amateur Extra around early 1960s. And with a 10 year > broadcasting career usually yearly visits from McCann or another FCC > engineer Burson at the broadcast station inspections. > > > > 73 KI7Y > > > > ----- Original Message ----- > > From: "Phil Kane" > > To: "Elecraft" > > Sent: Wednesday, April 29, 2020 7:32:31 PM > > Subject: Re: [Elecraft] OT: The Colpitts mystery > > > > On 4/29/2020 5:52 PM, Macy monkeys wrote: > > > >> I took my General at the FCC office downtown Portland in the late > >> 60s. The examiner was a tough and gruff staffer named Francis McCann. > >> IMHO, he was extra tough on 14 year olds, hi. You know my heart was > >> racing when that series of V's came through those headphones! > > Frank McCann was one of the old timers when I joined the agency in 1967. > > By that time he was the Engineer in Charge of the Portland Office but > > the EIC did a lot of the journeyman jobs in those smaller offices. When > > he retired in the late 1970s (or was it the early 1980s) I applied for > > his job but they had to give it to someone else whose office was being > > closed and I continued at the San Francisco Office until I retired in > > 1995. I have no idea what happened to him after that. > > > > 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 jc_ki7y at q.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 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 kengkopp at gmail.com > From KY5G at montac.com Thu Apr 30 20:32:49 2020 From: KY5G at montac.com (Clay Autery) Date: Thu, 30 Apr 2020 19:32:49 -0500 Subject: [Elecraft] Elecraft Digest, Vol 192, Issue 43 In-Reply-To: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> References: <276EE026-847C-4E1D-9134-993B346FCB14@icloud.com> Message-ID: <992f79ef-58e1-c578-d567-71e2fbccc057@montac.com> Well, you came to the right place.? The folks here in THIS group are the ones who got me headed in the right direction. Then of course, David Shoaf and his crew at Elecraft spent the requisite time to get me the best bang for my buck for initial config, AND helped me make a logical plan for maxing out the upgrades as additional funding became available. Got my K3s/P3 combo maxed out with THE very LAST NIB 2nd Receiver on the shelf....? Talk about sneaking in under the wire. You will likely want to do something similar in the K4? K-Line.... Feel free to contact me directly and we can chat to your heart's content about Elecraft....? I am all about "paying it forward". Of course, there are much smarter and more experienced folks out in Elecraft land than me....? especially as regards the soon to be available K4... 73, and welcome to the support group for the best amateur radio ON THE PLANET! ______________________ Clay Autery, KY5G (318) 518-1389 On 04/30/20 08:22, Tommy Judson via Elecraft wrote: > Ok, joined this group even though I don?t own an Elecraft radio - yet. I?m wanting an Elecraft Elmer to help me understand which rig could be ?the one?. What say someone please? Tommy > >> On Apr 29, 2020, at 10:44 PM, elecraft-request at mailman.qth.net wrote: >> >> Send Elecraft mailing list submissions to >> elecraft at mailman.qth.net >> >> To subscribe or unsubscribe via the World Wide Web, visit >> http://mailman.qth.net/mailman/listinfo/elecraft >> or, via email, send a message with subject or body 'help' to >> elecraft-request at mailman.qth.net >> >> You can reach the person managing the list at >> elecraft-owner at mailman.qth.net >> >> When replying, please edit your Subject line so it is more specific >> than "Re: Contents of Elecraft digest..." >> >> >> Today's Topics: >> >> 1. Re: Elecraft] OT: The Colpitts mystery (Dave Fugleberg) >> 2. Re: Mail for Windows 10 (Jim Brown) >> 3. KX3 Firmware (Ray Soifer) >> 4. Evening Net Announcement & Invitation (kevinr) >> 5. Re: OT: The Colpitts mystery (Roger D Johnson) >> 6. Re: Elecraft Digest, Vol 192, Issue 42 (Martin) >> 7. Re: Mail for Windows 10 (Phil Kane) >> 8. K3 - Using Mono Phone Jack Adapter in "Key" Port (Brian Deuby) >> 9. Re: Mail for Windows 10 (John Kosko) >> 10. Testing (Bob DeHaney) >> 11. Re: Power Supplies and Voltage drop (Phil Kane) >> 12. Re: Mail for Windows 10 (Lynn W. Taylor, WB6UUT) >> 13. Re: Mail for Windows 10 (Lynn W. Taylor, WB6UUT) >> 14. KX3 internal battery charger normal behavior? (BT * ) >> (Mike Parkes) >> 15. OT: The Colpitts mystery (Doug Faunt N6TQS +1-510-717-1197) >> 16. Evening Net Invitation notes, addenda, and errata (kevinr) >> 17. Re: OT: The Colpitts mystery (Fred Jensen) >> 18. Re: OT: The Colpitts mystery (John Simmons) >> 19. Re: OT: The Colpitts mystery (k7sss at aol.com) >> 20. Re: OT: The Colpitts mystery (EricJ) >> 21. Re: OT: The Colpitts mystery (Macy monkeys) >> 22. Re: Mail for Windows 10 (Brian Denley) >> 23. Re: OT: The Colpitts mystery (Phil Kane) >> 24. Re: OT: The Colpitts mystery (Phil Kane) >> 25. Elecraft Evening Net Report (kevinr) >> 26. Re: OT: The Colpitts mystery (Nr4c) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Wed, 29 Apr 2020 11:38:31 -0500 >> From: Dave Fugleberg >> To: Gerry Villhauer >> Cc: "Elecraft at mailman.qth.net" >> Subject: Re: [Elecraft] Elecraft] OT: The Colpitts mystery >> Message-ID: >> >> Content-Type: text/plain; charset="UTF-8" >> >> Yep, that was the textbook for the Communications class I had in >> electronics school in 1983. One of the requirements to pass the class was >> to pass the General Radiotelephone exam. The FCC Examiner came over from >> the St Paul field office to the technical school to administer the exam to >> the class. >> Shortly after that, I went to the field office and passed the General and >> Advanced amateur exams...most of the technical portions were nearly >> identical to the General Radiotelephone. >> >> On Wed, Apr 29, 2020 at 8:35 AM Gerry Villhauer wrote: >> >>> The text book of choice for the commercial license test was: Electronic >>> Communications by Shrader. I have a copy, 2nd addition. I used it for >>> passing my 2nd and 1st class commercial test...Now the General Radio >>> Telecommunication License. >>> Gerry, W0GV >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 >>> >> >> ------------------------------ >> >> Message: 2 >> Date: Wed, 29 Apr 2020 09:41:01 -0700 >> From: Jim Brown >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Mail for Windows 10 >> Message-ID: >> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> On 4/29/2020 5:31 AM, Chuck Chandler wrote: >>> Unless the list is capable of being re-configured (possibly with the ' >>> *convert_html_to_plaintext* ' option?), I would urge some notice be given >>> to users that this list is incompatible with Mail for Windows 10, >> This reflector has been happily operating for 20 years with plain text. >> I subscribe to about 30 lists, half of which operate with plain text. I >> suggest that users get with THAT program, rather than suggest that these >> lists are wrong. >> >> 73, Jim K9YC >> >> >> >> ------------------------------ >> >> Message: 3 >> Date: Wed, 29 Apr 2020 16:45:03 +0000 (UTC) >> From: Ray Soifer >> To: elecraft at mailman.qth.net >> Subject: [Elecraft] KX3 Firmware >> Message-ID: <450108723.2267715.1588178703467 at mail.yahoo.com> >> Content-Type: text/plain; charset=UTF-8 >> >> Dear Elecraft, >> I'm sure you're getting lots of requests for FT8 but I have a simpler request. >> Would it be possible to add 75 baud RTTY to the KX3 firmware? >> >> BARTG and other RTTY groups are increasingly using it. >> 73 Ray W2RS >> >> ------------------------------ >> >> Message: 4 >> Date: Wed, 29 Apr 2020 09:59:44 -0700 >> From: kevinr >> To: Elecraft Reflector >> Subject: [Elecraft] Evening Net Announcement & Invitation >> Message-ID: >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Good Morning, >> >> I have been running the Elecraft CW Net since 2002.? It started on 20 >> meters but requests from the West Coast had me start the 40 meter net a >> year later.? I have received numerous email messages and over the air >> requests for a mid week evening net.? I will finally get started on that >> this evening. >> >> I could run the net as I normally do: call for check ins and then work >> them in order.? Then call CQ again and work the new list. All while >> using directed net rules.? Tonight I would like to try a round robin net >> so others will act as net control.? Think of it as a training exercise.? >> I keep track of things using two sheets of paper, one for notes, the >> other for the final list.? While I could have been using computers to do >> all of the logging I purposely have kept computers out of my radio >> shack.? I am stuck in front of them during most of the week I would >> rather spend some time away from a screen while I am on the air. >> >> But, I digress.? If you want to be part of the round robin effort simply >> keep track of who you worked.? I will try to keep track but if all goes >> well someone will be able to work outside of my listening area.? Send >> your results to me via the radio at the end of the net or email them to >> me directly.? I expect the first few attempts will be chaotic.? This is >> normal, it is part of the learning process.? ECN has changed over time, >> I expect this net will change as well. >> >> I will start on or near 7047 kHz at 8 PM PDT or 0300z.? Then we see what >> happens.? This is only an experiment, if it works out that would be >> fantastic if it doesn't that's OK too.? Forty meters may not work >> tonight or people may be busy with something else or there are other >> nets active taking up the space.? I just want to see if all those people >> who asked me to do this will be on the air and active.? If this time and >> technique works out the new net should be self supporting allowing new >> folks to join in at any time with everyone doing part of the work.? I >> will start the nets and create the reports until someone else volunteers >> to take over. >> >> Please join the Elecraft Evening Net on or near 7047 kHz at 8 PM PDT or >> 0300z. >> >> If users of other modes (other than CW that is) want to participate >> please feel free to start calling at 8 PM (0300z) on your mode's >> favorite frequency.? Then send your net report to me so I can collate it >> with the others.? Cross mode contacts would be fun once we get this >> running well. >> >> Until this evening 73, >> >> ??? Kevin.? KD5ONS >> >> - >> >> This story shall the good man teach his son; >> And Crispin Crispian shall ne'er go by, >> From this day to the ending of the world, >> But we in it shall be remember?d? >> We few, we happy few, we band of brothers; >> For he to-day that sheds his blood with me >> Shall be my brother; be he ne'er so vile, >> This day shall gentle his condition; >> And gentlemen in England now a-bed >> Shall think themselves accurs'd they were not here, >> And hold their manhoods cheap whiles any speaks >> That fought with us upon Saint Crispin's day. >> >> >> >> >> >> >> >> ------------------------------ >> >> Message: 5 >> Date: Wed, 29 Apr 2020 13:03:27 -0400 >> From: Roger D Johnson >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: <57a43e75-99ba-702d-1f51-bf445ebfec6e at roadrunner.com> >> Content-Type: text/plain; charset=windows-1252; format=flowed >> >> I was stationed with the Coast Guard in Kodiak, Alaska between Summer >> 1976 and Summer 1978. I flew up to Anchorage to take my Extra exam before >> an examiner. Probably sometime in 1977. >> >> 73, Roger >> >> >> On 4/29/2020 10:47 AM, Ted Roycraft wrote: >>> I took the test for Extra administered by an FCC examiner, David Popkin, in NYC >>> in 1964. So there were still FCC examiners then. Funny that I still remember >>> David Popkin's name but I can't remember what I had for dinner last night. >>> >>> 73, Ted, W2ZK >>> >>> On 4/29/2020 12:27 AM, Jim Brown wrote: >>>> On 4/28/2020 4:16 PM, EricJ wrote: >>>>> but some time in the mid-50s it was given over to volunteer hams. >>>> My memory is that it was a LOT later than that. I'd guess late '70s to early >>>> '80s. >>>> >>>> 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 ted.roycraft 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 n1rj at roadrunner.com >> >> ------------------------------ >> >> Message: 6 >> Date: Wed, 29 Apr 2020 19:21:47 +0200 >> From: Martin >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Elecraft Digest, Vol 192, Issue 42 >> Message-ID: <8fd2450c-c89b-dd27-986d-a1eea84a8361 at t-online.de> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Well, this list is not incompatible with Mail for Windows10, Mail for >> Windows10 is incompatible with most lists. >> >> >> Am 29.04.20 um 18:16 schrieb elecraft-request at mailman.qth.net: >>> Unless the list is capable of being re-configured (possibly with the ' >>> *convert_html_to_plaintext* ' option?), I would urge some notice be given >>> to users that this list is incompatible with Mail for Windows 10, since >>> there does not appear to be any sort of error feedback other than that >>> provided by other users who let you know your message did not get through. >> -- >> >> 73, Martin DM4iM >> >> >> ------------------------------ >> >> Message: 7 >> Date: Wed, 29 Apr 2020 10:28:56 -0700 >> From: Phil Kane >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Mail for Windows 10 >> Message-ID: >> Content-Type: text/plain; charset=utf-8 >> >> On 4/29/2020 7:04 AM, kk4kfg wrote: >> >>> So yet again Microsoft and Windows 10 does something absolutely stupid >>> and against every known specification for a mail client and the offered >>> "solution" is for others to fix it or mask a solution. >> I use Windows 10 on all my PCs and my wife's Microsoft Surface. We just >> don't use Mail. To paraphrase an old cartoon - is it OK to wear jeans >> in school? Yes it's OK to wear jeans in school , but it it not OK to >> wear jeans in THIS school". >> >> I too have used Thunderbird for at least 20 years, after I switched from >> PC-Mail and the IBM-OS/2 operating system to Windows NT. My arm still >> hurts from being twisted. >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> >>> From a Clearing in the Silicon Forest >> Beaverton (Washington County) Oregon >> >> >> ------------------------------ >> >> Message: 8 >> Date: Wed, 29 Apr 2020 13:30:46 -0400 >> From: Brian Deuby >> To: elecraft at mailman.qth.net >> Cc: bdeuby at gmail.com >> Subject: [Elecraft] K3 - Using Mono Phone Jack Adapter in "Key" Port >> Message-ID: >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> I'm considering attempting modify the operation of my UR5CDX CT 755 >> paddle so that it acts like a cootie. I understand that this can be done >> by using a mono phone jack adapter on the end of the CT 755 cable (which >> terminates with a stereo jack) and plugging it into the "Key" port on >> the K3. >> >> I can't find anything in any of my K3 manuals that cautions against this >> - but I do have a vague recollection of seeing some caution of this >> nature somewhere. >> >> Is there any reason I can't safely plug a mono adapter jack into the >> "Key" port on the K3? >> >> Thanks, >> >> Brian K8GRR >> >> >> >> ------------------------------ >> >> Message: 9 >> Date: Wed, 29 Apr 2020 17:37:54 +0000 >> From: John Kosko >> To: "Elecraft at mailman.qth.net" >> Subject: Re: [Elecraft] Mail for Windows 10 >> Message-ID: >> >> >> Content-Type: text/plain; charset="Windows-1252" >> >> I?m running a one year old ASUS using Windows 10 and Hotmail/Outlook and Win10 is NOT in Win7 mode. I?m not aware of a problem, although I didn?t get any Elecraft emails yesterday?odd. >> Regards, John K8TCT K3S s/n 11718 >> >> Sent from Mail for Windows 10 >> >> >> >> ------------------------------ >> >> Message: 10 >> Date: Wed, 29 Apr 2020 19:56:04 +0200 >> From: "Bob DeHaney" >> To: >> Subject: [Elecraft] Testing >> Message-ID: <001c01d61e4f$7411c6a0$5c3553e0$@gmx.net> >> Content-Type: text/plain; charset="utf-8" >> >> I was given my Conditional Test by W4MLE(SK) in 1960. He was also my Elmer and a great guy. >> >> Vy 73 de Bob DJ0RD/WU5T >> >> >> >> ------------------------------ >> >> Message: 11 >> Date: Wed, 29 Apr 2020 11:12:49 -0700 >> From: Phil Kane >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Power Supplies and Voltage drop >> Message-ID: >> Content-Type: text/plain; charset=utf-8 >> >> On 4/25/2020 8:21 PM, Bob McGraw K4TAX wrote: >> >>> Here is what I did to remedy the situation.??? I obtained two 10-32 x 2" >>> brass screws from the hardware store.? I got 4 nuts, 2 for each screw, 4 >>> flat washers, 2 for each screw and two wing nuts.?? I then cut the head >>> off of each screw and filed a flat spot about 1/2 " long and deep enough >>> to removed the threads. >> I fixed my brand-new Astron SS-50M a bit differently. One set screw on >> the connection block was seized up, so Astron sent me two new blocks >> with instructions to open the case and replace them. When I opened the >> case I saw that the leads to the blocks had ring terminals held to the >> blocks by a short screw. I removed the existing blocks and replaced >> them with 10-32 x 2" brass screws. I used two short plates of ABS from >> TAP Plastics to serve as insulated spacers (one inside the case and one >> outside the case) and drilled the appropriate holes to permit the screws >> to be held through the case with appropriate nuts and washers. The >> leads to my power distribution board) are AWG 6 terminated in standard >> electrical lugs held by massive set-screws and are fastened onto the >> screws by appropriate nuts. If I have to remove them I keep a Spintite >> (nut driver) nearby. Works great so far! >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> >>> From a Clearing in the Silicon Forest >> Beaverton (Washington County) Oregon >> >> >> ------------------------------ >> >> Message: 12 >> Date: Wed, 29 Apr 2020 11:32:33 -0700 >> From: "Lynn W. Taylor, WB6UUT" >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Mail for Windows 10 >> Message-ID: >> <55e7ce40-2da5-3dfc-cfe7-faeee5749831 at ColdRocksHotBrooms.com> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Ah, sadly, no. As much as I like to blame Microsoft, we have to start >> with RFC-1341 and Multipurpose Independent Mail Extensions. >> >> Microsoft did not contribute to that RFC. >> >> MIME allows more than one formatting option. We had something called >> "Rich Text" but Netscape brought us HTML as a formatting option, and >> that made it possible to embed code that would load malware on your >> computer. >> >> That's when List Servers got the ability to strip formatting -- it put a >> stop to people blaming the list for the poor security in their OS. >> >> HTML is a poor choice, but it's also supported in just about every >> E-Mail client. >> >> This is where we can blame Microsoft (some), but it's hard to render >> HTML and detect all the possible issues. >> >> 73 -- Lynn, WB6UUT >> >> P.S. Thunderbird is much better, but this issue remains. >> >> On 4/29/20 7:04 AM, kk4kfg wrote: >>> Respectfully I offer the following. >>> >>> So yet again Microsoft and Windows 10 does something absolutely stupid >>> and against every known specification for a mail client and the offered >>> "solution" is for others to fix it or mask a solution. >> >> ------------------------------ >> >> Message: 13 >> Date: Wed, 29 Apr 2020 11:33:32 -0700 >> From: "Lynn W. Taylor, WB6UUT" >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Mail for Windows 10 >> Message-ID: >> <22e07ca6-0697-006a-0376-d8dcda6b4495 at ColdRocksHotBrooms.com> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> It depends on the version and how it is configured. >> >> On 4/29/20 8:20 AM, Lyn Norstad wrote: >>> Apparently Microsoft Outlook has none of the issues being described. >>> >>> >>> >>> 73 >>> >>> Lyn, W0LEN >>> >>> >>> >>> >>> >>> -----Original Message----- >>> From: elecraft-bounces at mailman.qth.net >>> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Dave Cole >>> Sent: Wednesday, April 29, 2020 9:46 AM >>> To: elecraft at mailman.qth.net >>> Subject: Re: [Elecraft] Mail for Windows 10 >>> >>> >>> >>> =====================================CUT==================================== >>> = >>> >>> On 4/29/20 7:04 AM, kk4kfg wrote: >>> >>> Respectfully I offer the following. >>> >>> >>> >>> So yet again Microsoft and Windows 10 does something absolutely stupid >>> >>> and against every known specification for a mail client and the offered >>> >>> "solution" is for others to fix it or mask a solution. >>> >>> =====================================CUT==================================== >>> = >>> >>> >>> >>> ...and that is why I run Linux as my main OS! >>> >>> >>> >>> 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 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 kx3.2 at coldrockshotbrooms.com >>> >> >> ------------------------------ >> >> Message: 14 >> Date: Wed, 29 Apr 2020 20:05:08 +0000 >> From: Mike Parkes >> To: Elecraft Reflector >> Subject: [Elecraft] KX3 internal battery charger normal behavior? (BT >> * ) >> Message-ID: >> >> Content-Type: text/plain; charset="UTF-8" >> >> I set a 12 hour charge cycle on some 2000mah Eneloops in the KX3. >> After the charge cycle had completed the asterisk remained on when checking >> voltage, showing BT*11.6V (using vfo B). Is that normal? >> I checked Menu > Bat Charge, and it showed CHG OFF so the charging was >> completed apparently but I wasn't sure about the ( * ) remaining on. >> - Mike AB7RU >> >> >> ------------------------------ >> >> Message: 15 >> Date: Wed, 29 Apr 2020 13:25:20 -0700 >> From: "Doug Faunt N6TQS +1-510-717-1197" >> To: Elecraft at mailman.qth.net >> Subject: [Elecraft] OT: The Colpitts mystery >> Message-ID: >> >> Content-Type: text/plain; charset="UTF-8" >> >> I took the commercial tests in '69. I seem to recall having to learn >> the various oscillator circuits. >> I was an ATN2 on night check in VA-125 in Lemoore, CA. >> The night check AT shop Chief wanted to get his 2nd class >> Radiotelephone so he could work >> on aircraft electronics when he retired, so he had the whole night >> check shop studying. >> I'd been doing electronics and radio for a number of years, so I was >> teaching everyone. >> A bunch of us went up to Fresno for the exam and I was the first one >> done. I was also the only one >> who got a 1st Radiotelephone, the rest got 3rd at best, even the Chief. >> I managed to pick up a broadcast endorsement in SC after I got out, >> and then many years later >> when I started sailing on tall ships, I heard about GMDSS, so studied >> that and added GMDSS Operator/Maintainer >> with a Radar endorsement on top of the GROL that my 1st had turned >> into. It turns out, for international >> compliance, the USCG required a STCW-approved course to add GMDSS to >> my Merchant Mariners Credential, >> so I had to do a 10-day course, with practical evaluations, and essay >> questions! So I did that, arguing with the >> instructor the whole time, simce I gave correct answers, but not what >> he expected. The other three people >> in the course dropped out quickly- their company had sent them, but >> they actually didn't need it on their MMC. >> 73, doug >> >> >> ------------------------------ >> >> Message: 16 >> Date: Wed, 29 Apr 2020 13:58:06 -0700 >> From: kevinr >> To: Elecraft Reflector >> Cc: Elecraft-KX at groups.io >> Subject: [Elecraft] Evening Net Invitation notes, addenda, and errata >> Message-ID: <1bc00ace-7718-4f93-c627-0bf82aafb04c at coho.net> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Good Afternoon, >> >> ?? I have received a few messages about activities on 40 meters at my >> chosen time and frequency.? CWT may push us up in frequency but I don't >> want to get too far into the digital portion of the band.? The old >> novice band may be better between 7100 and 7125 if the QRS folks don't >> mind.? I plan to start around 7050 kHz and see how it goes.? The CWT >> activity may not reach that high. >> >> ? As for procedures I will start with a preamble of some sort >> explaining what we're trying to do.? Then call CQ.? I'll handle the >> first round logging questions and comments.? Then I will pass net >> control to whomever volunteers (or the one I pick :)? NCS duties are not >> tough.? Just call CQ and take notes.? Work your group and choose the >> next victim :)? When that thins out pass control back to me and I'll >> list questions, answers, and comments.? One more call and then let the >> net go free.? I have never closed the Elecraft CW Net, I just let it go >> free. Occasionally contacts continue between the attendees.? WAS >> contacts happen too.? It just feels wrong to assume one can control >> activity.? It is hard enough to maintain control of a net :) >> >> ? Evening net starts at 8 PM PDT (0300z) on or near 7050 kHz unless >> forced to move into the 7100-7125 range. >> >> ? 73, >> >> ???? Kevin.? KD5ONS >> >> - >> >> The play's the thing >> >> >> >> ------------------------------ >> >> Message: 17 >> Date: Wed, 29 Apr 2020 14:14:11 -0700 >> From: Fred Jensen >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> I'm pretty sure it was in the early 80's. >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> On 4/28/2020 9:27 PM, Jim Brown wrote: >>> On 4/28/2020 4:16 PM, EricJ wrote: >>>> but some time in the mid-50s it was given over to volunteer hams. >>> My memory is that it was a LOT later than that. I'd guess late '70s to >>> early '80s. >>> >>> 73, Jim K9YC >> >> >> ------------------------------ >> >> Message: 18 >> Date: Wed, 29 Apr 2020 18:08:15 -0500 >> From: John Simmons >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: <5055ac48-f2ab-6acd-9548-6296733f7162 at pinewooddata.com> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about >> 6 months before the FCC testing ended. I wanted to get it out of the way >> before the VE program started. Fear of the unknown, I guess. I worked as >> a VE early on in the program. I've seen some abuses, but overall I think >> it is a great change for us hams. >> >> 73, >> -de John NI0K >> >> Fred Jensen wrote on 4/29/2020 4:14 PM: >>> I'm pretty sure it was in the early 80's. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>> On 4/28/2020 9:27 PM, Jim Brown wrote: >>>> On 4/28/2020 4:16 PM, EricJ wrote: >>>>> but some time in the mid-50s it was given over to volunteer hams. >>>> My memory is that it was a LOT later than that. I'd guess late '70s >>>> to early '80s. >>>> >>>> 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 >> >> >> ------------------------------ >> >> Message: 19 >> Date: Wed, 29 Apr 2020 23:46:15 +0000 (UTC) >> From: k7sss at aol.com >> To: jasimmons at pinewooddata.com, Elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: <965634212.1698725.1588203975215 at mail.yahoo.com> >> Content-Type: text/plain; charset=UTF-8 >> >> Hi all,This brings back old memories. In 1962, I was in Vocational School in St Paul, MN studying Electronics. My instructors told me to get a 1st Phone w radar endorsement as it would make it easier to get a job. So I did at the FCC office in St Paul, and since then every job I had, required a 1st or 2nd class and some jobs a radar endorsement.I had to renewed it by getting 5 endorsements from officials in charge of the stations. I did not like it when it was converted to General Radio Telephone and life time.I got my ham license in 2011 as I could not do CW. I tried but always failed. >> 73Jim HK7SSS >> In a message dated 4/29/2020 4:10:24 PM Pacific Standard Time, jasimmons at pinewooddata.com writes: >> >> I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about >> 6 months before the FCC testing ended. I wanted to get it out of the way >> before the VE program started. Fear of the unknown, I guess. I worked as >> a VE early on in the program. I've seen some abuses, but overall I think >> it is a great change for us hams. >> >> 73, >> -de John NI0K >> >> >> ------------------------------ >> >> Message: 20 >> Date: Wed, 29 Apr 2020 17:45:26 -0700 >> From: EricJ >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: >> >> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> A google search brought up a number of websites with a history of ham >> licensing. They all say exactly what I said. From Wikipedia: >> >> "In the 1950s and 1960s, Novice, Technician and Conditional exams were >> given by licensees acting as volunteer examiners." >> >> https://en.wikipedia.org/wiki/Amateur_radio_licensing_in_the_United_States >> >> Volunteer examiners does not mean Volunteer Examiners (VE) as we've >> known them since 1984. VE organizations are officially recognized by the >> FCC. Before that, they were hams who volunteered to whoever asked to >> administer the test, sign it, and mail it to the FCC. They were not part >> of any officially recognized program as VE's are. They were just Joe Ham >> whose friend, acquaintance or stranger asked them to give them the test. >> The applicant sent away to the FCC for the test and gave it to Joe Ham >> in a sealed envelope. I did the deed many times at K2USA when I was >> stationed there in the 60's. I was just a guy with a General Class >> license who volunteered to give them a code test and proctor a written test. >> >> Eric KE6US >> >> ex-K1DCK, WA6YCF, WB2PVW >> >> >> On 4/29/2020 2:14 PM, Fred Jensen wrote: >>> I'm pretty sure it was in the early 80's. >>> >>> 73, >>> Fred ["Skip"] K6DGW >>> Sparks NV DM09dn >>> Washoe County >>> >>> On 4/28/2020 9:27 PM, Jim Brown wrote: >>>> On 4/28/2020 4:16 PM, EricJ wrote: >>>>> but some time in the mid-50s it was given over to volunteer hams. >>>> My memory is that it was a LOT later than that. I'd guess late '70s >>>> to early '80s. >>>> >>>> 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 eric_csuf at hotmail.com . >> >> ------------------------------ >> >> Message: 21 >> Date: Wed, 29 Apr 2020 17:52:59 -0700 >> From: Macy monkeys >> To: John Simmons >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: <55D57003-1297-4D2F-9DAD-E621A5D48D4D at charter.net> >> Content-Type: text/plain; charset=us-ascii >> >> I took my General at the FCC office downtown Portland in the late 60s. The examiner was a tough and gruff staffer named Francis McCann. IMHO, he was extra tough on 14 year olds, hi. You know my heart was racing when that series of V's came through those headphones! >> >> John K7FD >> >>> On Apr 29, 2020, at 4:08 PM, John Simmons wrote: >>> >>> I took my Extra at the FCC in St Paul somewhere 1985-1987. It was about 6 months before the FCC testing ended. I wanted to get it out of the way before the VE program started. Fear of the unknown, I guess. I worked as a VE early on in the program. I've seen some abuses, but overall I think it is a great change for us hams. >>> >>> 73, >>> -de John NI0K >>> >>> Fred Jensen wrote on 4/29/2020 4:14 PM: >>>> I'm pretty sure it was in the early 80's. >>>> >>>> 73, >>>> Fred ["Skip"] K6DGW >>>> Sparks NV DM09dn >>>> Washoe County >>>> >>>>> On 4/28/2020 9:27 PM, Jim Brown wrote: >>>>>> On 4/28/2020 4:16 PM, EricJ wrote: >>>>>> but some time in the mid-50s it was given over to volunteer hams. >>>>> My memory is that it was a LOT later than that. I'd guess late '70s to early '80s. >>>>> >>>>> 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 >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 >> >> >> ------------------------------ >> >> Message: 22 >> Date: Wed, 29 Apr 2020 21:23:05 -0400 >> From: "Brian Denley" >> To: "elecraft at mailman.qth.net" >> Subject: Re: [Elecraft] Mail for Windows 10 >> Message-ID: >> Content-Type: text/plain; charset="utf-8" >> >> Test >> >> Brian KB1VBF >> >> Sent from Mail for Windows 10 >> >> >> >> >> ------------------------------ >> >> Message: 23 >> Date: Wed, 29 Apr 2020 19:22:59 -0700 >> From: Phil Kane >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: <5a0f6d46-8af4-f662-8c8b-336ec2e77c74 at kanafi.org> >> Content-Type: text/plain; charset=utf-8 >> >> On 4/29/2020 4:46 PM, Jim H via Elecraft wrote: >> >>> I did not like it when it was converted to General Radio Telephone and life time >> You weren't alone. I was one of the field supervisors whose opinion was >> being considered by the committee that dealt on how to do the >> transition, but the handwriting was on the wall. Ditto for the amateur >> radio VE testing transition. >> >> Blame me for suggesting the new name - it's the international name of >> that license but few of the members recognized that. >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> >>> From a Clearing in the Silicon Forest >> Beaverton (Washington County) Oregon >> >> >> ------------------------------ >> >> Message: 24 >> Date: Wed, 29 Apr 2020 19:32:31 -0700 >> From: Phil Kane >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: >> Content-Type: text/plain; charset=utf-8 >> >> On 4/29/2020 5:52 PM, Macy monkeys wrote: >> >>> I took my General at the FCC office downtown Portland in the late >>> 60s. The examiner was a tough and gruff staffer named Francis McCann. >>> IMHO, he was extra tough on 14 year olds, hi. You know my heart was >>> racing when that series of V's came through those headphones! >> Frank McCann was one of the old timers when I joined the agency in 1967. >> By that time he was the Engineer in Charge of the Portland Office but >> the EIC did a lot of the journeyman jobs in those smaller offices. When >> he retired in the late 1970s (or was it the early 1980s) I applied for >> his job but they had to give it to someone else whose office was being >> closed and I continued at the San Francisco Office until I retired in >> 1995. I have no idea what happened to him after that. >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 >> >>> From a Clearing in the Silicon Forest >> Beaverton (Washington County) Oregon >> >> >> ------------------------------ >> >> Message: 25 >> Date: Wed, 29 Apr 2020 20:15:39 -0700 >> From: kevinr >> To: Elecraft Reflector >> Subject: [Elecraft] Elecraft Evening Net Report >> Message-ID: <08f0eadd-2cfd-dd1e-077c-b34d2a341f11 at coho.net> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Good Evening, >> >> ?? Conditions were not too good for the inaugural evening event. >> However, I was not skunked. >> >> ? On 7050.5 kHz at 0300z: >> >> KL7CW - Rick - AK >> >> >> He was much weaker than either of our last two contacts.? He was S9 on >> 20 meters and S7 on 40 meters.? Tonight he was around 559 with QSB from >> 3 to 6.? Not very much noise which is normally a bad sign.? Higher noise >> usually means I am hearing a broader area of the country. >> >> But nothing ventured nothing gained.? I started opening the net around >> 0255z and continued until 0309z.? I did not fail which is always a >> plus.? Next week I'll try again and maybe the sun will cooperate.? There >> were two old sunspots a few days back and new one forming today.? That >> gives me hope that the sun won't remain blank forever. >> >> ?? Until next week stay well, >> >> ????? Kevin.? KD5ONS >> >> - >> >> >> >> ------------------------------ >> >> Message: 26 >> Date: Wed, 29 Apr 2020 23:44:25 -0400 >> From: Nr4c >> To: k2asp at arrl.net >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] OT: The Colpitts mystery >> Message-ID: >> Content-Type: text/plain; charset=utf-8 >> >> Will this ?Mystery? ever be solved? >> >> Sent from my iPhone >> ...nr4c. bill >> >> >>> On Apr 29, 2020, at 10:25 PM, Phil Kane wrote: >>> >>> ?On 4/29/2020 4:46 PM, Jim H via Elecraft wrote: >>> >>>> I did not like it when it was converted to General Radio Telephone and life time >>> You weren't alone. I was one of the field supervisors whose opinion was >>> being considered by the committee that dealt on how to do the >>> transition, but the handwriting was on the wall. Ditto for the amateur >>> radio VE testing transition. >>> >>> Blame me for suggesting the new name - it's the international name of >>> that license but few of the members recognized that. >>> >>> 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 nr4c at widomaker.com >> >> ------------------------------ >> >> _______________________________________________ >> Elecraft mailing list >> Post to: Elecraft at mailman.qth.net >> http://mailman.qth.net/mailman/listinfo/elecraft >> You must be a subscriber to post. >> Elecraft web page: http://www.elecraft.com >> >> End of Elecraft Digest, Vol 192, Issue 43 >> ***************************************** > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 KY5G at montac.com Thu Apr 30 20:36:12 2020 From: KY5G at montac.com (Clay Autery) Date: Thu, 30 Apr 2020 19:36:12 -0500 Subject: [Elecraft] OT: The Great KPA Fan Mystery In-Reply-To: <87517CED-A3BF-4DF7-8FC6-9F69259144A4@elecraft.com> References: <87517CED-A3BF-4DF7-8FC6-9F69259144A4@elecraft.com> Message-ID: <4bed5067-3853-6c93-a5e8-aa179acbec8f@montac.com> Wayne is correct....? (of course).? Thermal performance VERY often runs altogether in opposition to intuitive thinking on the application. ______________________ Clay Autery, KY5G (318) 518-1389 On 04/30/20 14:06, Wayne Burdick wrote: > For each product, we experimented with air flow direction and many other variables. The current configurations produced the fastest and most consistent cooling. > > 73, > Wayne > N6KR > > >> On Apr 30, 2020, at 12:01 PM, Andy Durbin wrote: >> >> "Why does the KPA500 suck air from the top vents and blow it out the back" >> >> I asked quite a while ago what thermal analysis had been performed on the KPA500 and got no answer here. It would seem reasonable for the fan to augment natural convection rather than oppose it. >> >> Kenwood built a batch of TS-590SG with the fans installed backwards but eventually they corrected the mistake in production. I don't think Elecraft ever decided the KPA500 fan was the wrong way round. >> >> Now for a KPA500 mystery question - does heat flow from the Z bracket into the heatsink or does it flow from the heatsink to the Z bracket? >> >> 73, >> Andy, k3wyc From KY5G at montac.com Thu Apr 30 20:36:58 2020 From: KY5G at montac.com (Clay Autery) Date: Thu, 30 Apr 2020 19:36:58 -0500 Subject: [Elecraft] DPOTA, anyone? In-Reply-To: <9689A33F-41C0-401E-877B-ECAACB8FC892@gmail.com> References: <9689A33F-41C0-401E-877B-ECAACB8FC892@gmail.com> Message-ID: <628d7052-a0bb-4fb0-3de0-510ecfa2d0e9@montac.com> Soooooo much awesome in those two posts! ______________________ Clay Autery, KY5G (318) 518-1389 On 04/30/20 14:30, Raymond wrote: > Extra points if contacts made with K4 > Ray > W8LYJ > > Sent from my iPhone > >> On Apr 30, 2020, at 12:07, Wayne Burdick wrote: >> >> ?DPOTA (n): Deserted Parks on the Air. (This activity is not to be confused with anticovidespotism, an emerging movement to thwart lockdowns.) >> >> * * * >> >> In the midst of all the fine Spring weather we're having, are you getting out, in both senses of the phrase? I'm finding no shortage of places to operate from. In northern California, at least, the trick is to follow obscure, little-used roads that lead to alternative entrances to parks, BLM land, etc. (Hint: Tunitas Creek road. Route 130 on the east side of Mt. Hamilton. There are many others.) >> >> Happy adventuring! Stay 2 meters from other operators, keep a bandana handy for emergencies, and don't forget your KX-line radio :) >> >> 73, >> Wayne >> N6KR From KY5G at montac.com Thu Apr 30 20:41:35 2020 From: KY5G at montac.com (Clay Autery) Date: Thu, 30 Apr 2020 19:41:35 -0500 Subject: [Elecraft] OT: The Great KPA Fan Mystery In-Reply-To: <97ffe4b5-1c17-af6e-bcab-f7c421ead2cc@nk7z.net> References: <87517CED-A3BF-4DF7-8FC6-9F69259144A4@elecraft.com> <97ffe4b5-1c17-af6e-bcab-f7c421ead2cc@nk7z.net> Message-ID: With a little searching online, you can find ultra-fine dust screens that do not reduce volume too much.... that are also very thin, and can be temp mounted on the intake vents without radically injuring the aesthetics. IF you care less about aesthetics and more about performance, I can point you in the right direction to constructing an intake filter assembly from OTS parts that will trap 90%+ of the pairborne particulates with less than 3% volume and air velocity reduction. Better than that IF you are willing to pay the prices... BEST practices is to leave Wayne and Eric's creation alone, and simply crack her open every 3 months and blow her out (CAREFULLY) with CLEAN and DRY air... 73, ______________________ Clay Autery, KY5G (318) 518-1389 On 04/30/20 14:40, Dave Cole wrote: > I wish you all had included a filter slot...? :) > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > From kk5f at earthlink.net Thu Apr 30 20:50:16 2020 From: kk5f at earthlink.net (Mike Morrow) Date: Thu, 30 Apr 2020 19:50:16 -0500 (GMT-05:00) Subject: [Elecraft] New Mystery: Copying groups vs plain language text (Rather OT) Message-ID: <1155286425.1872.1588294216465@wamui-marley.atl.sa.earthlink.net> Fred, The Radiotelegraph Second Class license required send and receive at 20 wpm Plain Language and 16 wpm Code Groups with no errors for one minute during the five minute test. The First Class license had the same written elements (1, 2, 5, 6) as the Second Class license but the Morse test was 25 wpm Plain Language and 20 wpm Code Groups, plus a six-month service requirement at stations open to public correspondence. (That "public correspondence" service requirement kept many operators with decades of commercial Morse service from ever getting a First Class license. However, every maritime Morse station was defined as open to public correspondence even if it was on a freighter and never had any such traffic.) The rare Aircraft Radiotelegraph Endorsement to Second or First Class licenses required the same Morse exam as the First Class license. IIRC, the FCC required use of hand copy and straight key for Second Class, but allowed typewritter and bug for the First Class tests. After I left the US Navy as a submarine officer more than 40 years ago, I decided I'd like to try my hand as a maritime radio officer before that job disappeared. (I was one of the few Navy people that loved going to sea.) I very much found the seemingly slow 16-wpm Code Group test significantly more difficult for test-taking purposes (when one is still developing skills) than Plain Language. As few as five errors in the 400 character test could prevent getting the required 80 consecutive error-free characters. It took me three 400-mile round trips to the Kansas City Field Office, only because of the 16 wom Code Group test. The 20 wpm Plain Language test (given first) was always child's play. I know that with practice and a mill an automatic unthinking response soon develops, but I did not get that far. For many years the FCC waived the Amateur Extra Morse exam for an applicant if he had held a commercial radiotelegraph license. In the mid-1990s, the FCC started waiving the Radiotelegraph Second Class Morse exams for an applicant holding an Amateur Extra Class license. That was a very signicicant relaxation of test standards for the commercial Radiotelegraph license, but by then there wasn't much call for the license. I never did get into Radio Officer work because a few months after licensing a new but permanent medical condition disqualified me from Safety-of-Life-at-Sea (SOLAS) duties. During Desert Storm/Desert Shield the US began reactivating enough old US-flag merchant vessels that one of the Radio Officer associations solicited license holders for a short paid training program and employment as new Radio Officers. Even 30 years ago there weren't many newcomers interested in starting a obvious dead end career, but 15 years earlier I'd have sent in my application if medically qualified. WRT Phil's comments below, it surprises me when hams claim adamantly that their Morse test was code groups. I attribute that to fading memory. Similary, it was recently stated that a Broadcast Endorsement was attained after earning the Radiotelephone First Class license. The Broadcast Endorsement was granted only to Third Class license holders to show that the announcer (with Third Class license) also had knowledge to serve as transmitter attendant (with Broadcast Endorsement) at small broadcast stations. Memory plays tricks on us old people. :-) Mike / KK5F -----Original Message----- >From: Fred Jensen >Sent: Apr 30, 2020 12:35 PM > >Why were code tests with groups almost always at a slower speed than >plain text? > >I had to copy 5-character groups at 16 [I think], and plain text at 20 >[I also think ... might have been 25, it was a very long time ago] for >the 2nd Telegraph.? I've never sat a military circuit to copy groups, >all my experience with groups was practice, the test, and WX reports >which sort of approximate groups.? However, I find groups to be easier >copy than plain text, especially on a mill of teletype tape perforator >keyboard.? The transition to "Ear-to-Fingers" mode with nothing passing >through brain is almost instantaneous and permanent for the duration. >With plain language text, I'll sometimes rouse from that state, try to >make sense of what I'm copying and have to catch up. > >Just curious, lots of folks here here have copied groups for a living >and might know the answer.? Incidentally, Jettie Hill, W6RFF [SK], once >told me that in WW2, he had to learn to sight-read inked tape at 45 or >50 WPM.? I think that would have caged my eyeballs. [:=) > >73, >Fred ["Skip"] K6DGW >Sparks NV DM09dn >Washoe County > >On 4/30/2020 9:36 AM, Phil Kane wrote: > >> On 4/29/2020 10:31 PM, Edward R Cole wrote: >> >>> CW test had been downgraded to a multiple question exam about plain >>> language text message vs the five mixed character groups back in Detroit. >> >> The ham CW test was always plain language text. 5-character groups were >> only for the Radiotelegraph CW exams. >> >> 73 de K2ASP - Phil Kane >> Elecraft K2/100 s/n 5402 From rcrgs at verizon.net Thu Apr 30 21:25:00 2020 From: rcrgs at verizon.net (Robert G Strickland) Date: Fri, 1 May 2020 01:25:00 +0000 Subject: [Elecraft] New Mystery: Copying groups vs plain language text (Rather OT) In-Reply-To: <1155286425.1872.1588294216465@wamui-marley.atl.sa.earthlink.net> References: <1155286425.1872.1588294216465@wamui-marley.atl.sa.earthlink.net> Message-ID: <34d3a52a-f04a-c09e-cf48-fb7e0cbac20b@verizon.net> Mike... When I tested for my general, vintage 1960, I had to receive a five minute plain text code message with no errors for one minute. But, I don't remember having to send anything (I did have to draw the Colpits oscillator, HI). And, for sure, no 5-letter groups. I was scared to death, but managed to get through it. You're right about the tricks of memory after 80 or so years. After a long hiatus, I started out again at age 50, and the code was much easier. I think computer programs made learning code easier, or at least it did for me. ...robert On 5/1/2020 12:50 AM, Mike Morrow wrote: > Fred, > > The Radiotelegraph Second Class license required send and receive at 20 wpm Plain Language and 16 wpm Code Groups with no errors for one minute during the five minute test. The First Class license had the same written elements (1, 2, 5, 6) as the Second Class license but the Morse test was 25 wpm Plain Language and 20 wpm Code Groups, plus a six-month service requirement at stations open to public correspondence. (That "public correspondence" service requirement kept many operators with decades of commercial Morse service from ever getting a First Class license. However, every maritime Morse station was defined as open to public correspondence even if it was on a freighter and never had any such traffic.) > > The rare Aircraft Radiotelegraph Endorsement to Second or First Class licenses required the same Morse exam as the First Class license. > > IIRC, the FCC required use of hand copy and straight key for Second Class, but allowed typewritter and bug for the First Class tests. > > After I left the US Navy as a submarine officer more than 40 years ago, I decided I'd like to try my hand as a maritime radio officer before that job disappeared. (I was one of the few Navy people that loved going to sea.) I very much found the seemingly slow 16-wpm Code Group test significantly more difficult for test-taking purposes (when one is still developing skills) than Plain Language. As few as five errors in the 400 character test could prevent getting the required 80 consecutive error-free characters. It took me three 400-mile round trips to the Kansas City Field Office, only because of the 16 wom Code Group test. The 20 wpm Plain Language test (given first) was always child's play. I know that with practice and a mill an automatic unthinking response soon develops, but I did not get that far. > > For many years the FCC waived the Amateur Extra Morse exam for an applicant if he had held a commercial radiotelegraph license. In the mid-1990s, the FCC started waiving the Radiotelegraph Second Class Morse exams for an applicant holding an Amateur Extra Class license. That was a very signicicant relaxation of test standards for the commercial Radiotelegraph license, but by then there wasn't much call for the license. > > I never did get into Radio Officer work because a few months after licensing a new but permanent medical condition disqualified me from Safety-of-Life-at-Sea (SOLAS) duties. During Desert Storm/Desert Shield the US began reactivating enough old US-flag merchant vessels that one of the Radio Officer associations solicited license holders for a short paid training program and employment as new Radio Officers. Even 30 years ago there weren't many newcomers interested in starting a obvious dead end career, but 15 years earlier I'd have sent in my application if medically qualified. > > WRT Phil's comments below, it surprises me when hams claim adamantly that their Morse test was code groups. I attribute that to fading memory. Similary, it was recently stated that a Broadcast Endorsement was attained after earning the Radiotelephone First Class license. The Broadcast Endorsement was granted only to Third Class license holders to show that the announcer (with Third Class license) also had knowledge to serve as transmitter attendant (with Broadcast Endorsement) at small broadcast stations. Memory plays tricks on us old people. :-) > > Mike / KK5F > > -----Original Message----- >> From: Fred Jensen >> Sent: Apr 30, 2020 12:35 PM >> >> Why were code tests with groups almost always at a slower speed than >> plain text? >> >> I had to copy 5-character groups at 16 [I think], and plain text at 20 >> [I also think ... might have been 25, it was a very long time ago] for >> the 2nd Telegraph. I've never sat a military circuit to copy groups, >> all my experience with groups was practice, the test, and WX reports >> which sort of approximate groups. However, I find groups to be easier >> copy than plain text, especially on a mill of teletype tape perforator >> keyboard. The transition to "Ear-to-Fingers" mode with nothing passing >> through brain is almost instantaneous and permanent for the duration. >> With plain language text, I'll sometimes rouse from that state, try to >> make sense of what I'm copying and have to catch up. >> >> Just curious, lots of folks here here have copied groups for a living >> and might know the answer. Incidentally, Jettie Hill, W6RFF [SK], once >> told me that in WW2, he had to learn to sight-read inked tape at 45 or >> 50 WPM. I think that would have caged my eyeballs. [:=) >> >> 73, >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> On 4/30/2020 9:36 AM, Phil Kane wrote: >> >>> On 4/29/2020 10:31 PM, Edward R Cole wrote: >>> >>>> CW test had been downgraded to a multiple question exam about plain >>>> language text message vs the five mixed character groups back in Detroit. >>> >>> The ham CW test was always plain language text. 5-character groups were >>> only for the Radiotelegraph CW exams. >>> >>> 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 rcrgs at verizon.net > -- Robert G Strickland, PhD ABPH - KE2WY rcrgs at verizon.net.usa Syracuse, New York, USA From elecraftcovers at gmail.com Thu Apr 30 21:39:44 2020 From: elecraftcovers at gmail.com (Rose) Date: Thu, 30 Apr 2020 19:39:44 -0600 Subject: [Elecraft] New Mystery: Copying groups vs plain language text (Rather OT) In-Reply-To: <34d3a52a-f04a-c09e-cf48-fb7e0cbac20b@verizon.net> References: <1155286425.1872.1588294216465@wamui-marley.atl.sa.earthlink.net> <34d3a52a-f04a-c09e-cf48-fb7e0cbac20b@verizon.net> Message-ID: Now, in my mid-eighties I can still hear the cigar chewing examiner, a Mr. Neeb saying "Son, that's mighty fine code" ... This would have been in the very early sixties. See my QRZ page for additional related info. 73 Ken Kopp - K0PP On Thu, Apr 30, 2020, 19:25 Robert G Strickland via Elecraft < elecraft at mailman.qth.net> wrote: > Mike... > > When I tested for my general, vintage 1960, I had to receive a five > minute plain text code message with no errors for one minute. But, I > don't remember having to send anything (I did have to draw the Colpits > oscillator, HI). And, for sure, no 5-letter groups. I was scared to > death, but managed to get through it. You're right about the tricks of > memory after 80 or so years. After a long hiatus, I started out again at > age 50, and the code was much easier. I think computer programs made > learning code easier, or at least it did for me. > > ...robert > > On 5/1/2020 12:50 AM, Mike Morrow wrote: > > Fred, > > > > The Radiotelegraph Second Class license required send and receive at 20 > wpm Plain Language and 16 wpm Code Groups with no errors for one minute > during the five minute test. The First Class license had the same written > elements (1, 2, 5, 6) as the Second Class license but the Morse test was 25 > wpm Plain Language and 20 wpm Code Groups, plus a six-month service > requirement at stations open to public correspondence. (That "public > correspondence" service requirement kept many operators with decades of > commercial Morse service from ever getting a First Class license. However, > every maritime Morse station was defined as open to public correspondence > even if it was on a freighter and never had any such traffic.) > > > > The rare Aircraft Radiotelegraph Endorsement to Second or First Class > licenses required the same Morse exam as the First Class license. > > > > IIRC, the FCC required use of hand copy and straight key for Second > Class, but allowed typewritter and bug for the First Class tests. > > > > After I left the US Navy as a submarine officer more than 40 years ago, > I decided I'd like to try my hand as a maritime radio officer before that > job disappeared. (I was one of the few Navy people that loved going to > sea.) I very much found the seemingly slow 16-wpm Code Group test > significantly more difficult for test-taking purposes (when one is still > developing skills) than Plain Language. As few as five errors in the 400 > character test could prevent getting the required 80 consecutive error-free > characters. It took me three 400-mile round trips to the Kansas City Field > Office, only because of the 16 wom Code Group test. The 20 wpm Plain > Language test (given first) was always child's play. I know that with > practice and a mill an automatic unthinking response soon develops, but I > did not get that far. > > > > For many years the FCC waived the Amateur Extra Morse exam for an > applicant if he had held a commercial radiotelegraph license. In the > mid-1990s, the FCC started waiving the Radiotelegraph Second Class Morse > exams for an applicant holding an Amateur Extra Class license. That was a > very signicicant relaxation of test standards for the commercial > Radiotelegraph license, but by then there wasn't much call for the license. > > > > I never did get into Radio Officer work because a few months after > licensing a new but permanent medical condition disqualified me from > Safety-of-Life-at-Sea (SOLAS) duties. During Desert Storm/Desert Shield > the US began reactivating enough old US-flag merchant vessels that one of > the Radio Officer associations solicited license holders for a short paid > training program and employment as new Radio Officers. Even 30 years ago > there weren't many newcomers interested in starting a obvious dead end > career, but 15 years earlier I'd have sent in my application if medically > qualified. > > > > WRT Phil's comments below, it surprises me when hams claim adamantly > that their Morse test was code groups. I attribute that to fading memory. > Similary, it was recently stated that a Broadcast Endorsement was attained > after earning the Radiotelephone First Class license. The Broadcast > Endorsement was granted only to Third Class license holders to show that > the announcer (with Third Class license) also had knowledge to serve as > transmitter attendant (with Broadcast Endorsement) at small broadcast > stations. Memory plays tricks on us old people. :-) > > > > Mike / KK5F > > > > -----Original Message----- > >> From: Fred Jensen > >> Sent: Apr 30, 2020 12:35 PM > >> > >> Why were code tests with groups almost always at a slower speed than > >> plain text? > >> > >> I had to copy 5-character groups at 16 [I think], and plain text at 20 > >> [I also think ... might have been 25, it was a very long time ago] for > >> the 2nd Telegraph. I've never sat a military circuit to copy groups, > >> all my experience with groups was practice, the test, and WX reports > >> which sort of approximate groups. However, I find groups to be easier > >> copy than plain text, especially on a mill of teletype tape perforator > >> keyboard. The transition to "Ear-to-Fingers" mode with nothing passing > >> through brain is almost instantaneous and permanent for the duration. > >> With plain language text, I'll sometimes rouse from that state, try to > >> make sense of what I'm copying and have to catch up. > >> > >> Just curious, lots of folks here here have copied groups for a living > >> and might know the answer. Incidentally, Jettie Hill, W6RFF [SK], once > >> told me that in WW2, he had to learn to sight-read inked tape at 45 or > >> 50 WPM. I think that would have caged my eyeballs. [:=) > >> > >> 73, > >> Fred ["Skip"] K6DGW > >> Sparks NV DM09dn > >> Washoe County > >> > >> On 4/30/2020 9:36 AM, Phil Kane wrote: > >> > >>> On 4/29/2020 10:31 PM, Edward R Cole wrote: > >>> > >>>> CW test had been downgraded to a multiple question exam about plain > >>>> language text message vs the five mixed character groups back in > Detroit. > >>> > >>> The ham CW test was always plain language text. 5-character groups > were > >>> only for the Radiotelegraph CW exams. > >>> > >>> 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 rcrgs at verizon.net > > > > -- > 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 elecraftcovers at gmail.com > From k2asp at kanafi.org Thu Apr 30 21:40:19 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 30 Apr 2020 18:40:19 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> <134060891.266790839.1588272448704.JavaMail.zimbra@q.com> <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> Message-ID: On 4/30/2020 12:58 PM, John Simmons wrote: > All the broadcast inspections are now contracted out to private companies. Not exactly. The FCC started the Alternate Broadcast Inspection Program (ABIT) about the time that I retired from the FCC. in the mid 1990s when there was a push to privatize Federal agency obligations to some extent. The FCC did it for broadcast station inspections, ship station safety inspections, and resolution of harmful interference. ABIT is a voluntary program under the management of the various state broadcasters' associations that contract with individuals to make compliance inspections of broadcast stations. The station pays the association a fixed fee, and the association pays the inspector. I contracted with the California association from 1996 until 1999 and traveled all over the state. Notification of passing an ABIT inspection was sent to the FCC but failures were not so reported. I don't know if that is still done. Such passing was regarded as "insulation" from FCC inspection for three years but the FCC still has the obligation to inspect broadcast stations both on a random basis for compliance with specific programs such as tower lighting and EAS compliance or if a complaint has been filed that bears on rule compliance, technical and otherwise. -- 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From kt5te at watershipfarm.com Thu Apr 30 21:58:06 2020 From: kt5te at watershipfarm.com (kt5te at watershipfarm.com) Date: Thu, 30 Apr 2020 20:58:06 -0500 Subject: [Elecraft] Boxes of tubes? What todo? In-Reply-To: <1725599.apG8zGF9Qg@linux-veff> References: <1725599.apG8zGF9Qg@linux-veff> Message-ID: <2542283.sROjVxJXqD@linux-veff> Hello all, Thank you for all the help and advice! A nice gentleman and I are going to meet when I do a feed run to Bryan, TX. That will cut a 5 hour trip to 2.5. I usually pick up a ton (or more) at a time for the draft horses, cattle & goats. :-) The plan is for him to do an inventory of the tubes and other items. Then a little later make them available for others. I'll pass along the names of the hams interested in the tubes. -- 73, William KT5TE On Thursday, April 30, 2020 6:56:20 AM CDT kt5te at watershipfarm.com wrote: > I know this is unusual for the list, but I was hoping someone could send me > in the right direction. > > In the attic of a house that was being refurbished for a office I found > boxes full of tubes and other stuff from the 40s & 50s. I hated to pitch > these items and figured somebody might want them, so brought it all home. > :-) The house has been empty for years, but I did find a newspaper > clipping and a QSO card from the 50s for Maj. Cantrell. He was called > "Misawa's Iron Jaw". I bet you can guess his MOS? > > What do I do...? From k2asp at kanafi.org Thu Apr 30 22:14:31 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 30 Apr 2020 19:14:31 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: <3648797b-f17e-43d0-47de-e1777fec468e@arrl.net> References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> <134060891.266790839.1588272448704.JavaMail.zimbra@q.com> <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> <3648797b-f17e-43d0-47de-e1777fec468e@arrl.net> Message-ID: On 4/30/2020 1:32 PM, Bill Steffey NY9H wrote: > and when they wanted my P1 ticket to give me GROL I took a pass, as I > was NOT going to give that up. So you wound up with nothing when your P1 expired versus keeping the same privileges with a GROL which soon became a lifetime license. PS - you would have been able to keep the P1 certificate as a "souvenir". 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 Apr 30 22:30:57 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Thu, 30 Apr 2020 19:30:57 -0700 Subject: [Elecraft] New Mystery: Copying groups vs plain language text (Rather OT) In-Reply-To: <1155286425.1872.1588294216465@wamui-marley.atl.sa.earthlink.net> References: <1155286425.1872.1588294216465@wamui-marley.atl.sa.earthlink.net> Message-ID: I guess my memory is better than I thought. In '56, I sat for the 2T accidentally ... 16, new driver, terrified driving to downtown Los Angeles, and got there in the AM as he was setting up for the 2T.? He [roughish sort of guy, voice like a growl, cigar, and no fooling, green eye shade] gave me an app, said,? "Fill it out, if you pass the code you get credit for the Extra this afternoon."? I passed with 5 minutes of correct copy on both groups and plain text. He gave me the written exam, I told him I was only 16, birth date was on the app.? He removed the cigar, looked right at me and said, "Son, sit down and answer the damn questions."? So I did, and passed ... exactly.? There were a couple or three "Colpitts Questions."? Passed the Extra that afternoon, same guy, same cigar, same growl. The 2T and Extra were both pencil/paper copy and J-28 screwed to the desk with ungodly wide spacing ... not to be adjusted by examinees. [:-)? Although I already had credit for the code, I wrote it anyway, and it was all plain text.? I really don't know where the urban legend of groups for the Extra came from but lots of folk think it was a requirement.? Used my 2T for 10 mo while a HS senior as the "Station Kid" at a coastal marine station, it expired while I was in college.? Kept the 1P, it became a lifetime GROL which is somewhere around here.? I still wonder why the groups were slower than plaintext, they were a lot easier for me. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 4/30/2020 5:50 PM, Mike Morrow wrote: > Fred, > > The Radiotelegraph Second Class license required send and receive at 20 wpm Plain Language and 16 wpm Code Groups with no errors for one minute during the five minute test. The First Class license had the same written elements (1, 2, 5, 6) as the Second Class license but the Morse test was 25 wpm Plain Language and 20 wpm Code Groups, plus a six-month service requirement at stations open to public correspondence. (That "public correspondence" service requirement kept many operators with decades of commercial Morse service from ever getting a First Class license. However, every maritime Morse station was defined as open to public correspondence even if it was on a freighter and never had any such traffic.) > > The rare Aircraft Radiotelegraph Endorsement to Second or First Class licenses required the same Morse exam as the First Class license. > > IIRC, the FCC required use of hand copy and straight key for Second Class, but allowed typewritter and bug for the First Class tests. > > After I left the US Navy as a submarine officer more than 40 years ago, I decided I'd like to try my hand as a maritime radio officer before that job disappeared. (I was one of the few Navy people that loved going to sea.) I very much found the seemingly slow 16-wpm Code Group test significantly more difficult for test-taking purposes (when one is still developing skills) than Plain Language. As few as five errors in the 400 character test could prevent getting the required 80 consecutive error-free characters. It took me three 400-mile round trips to the Kansas City Field Office, only because of the 16 wom Code Group test. The 20 wpm Plain Language test (given first) was always child's play. I know that with practice and a mill an automatic unthinking response soon develops, but I did not get that far. > > For many years the FCC waived the Amateur Extra Morse exam for an applicant if he had held a commercial radiotelegraph license. In the mid-1990s, the FCC started waiving the Radiotelegraph Second Class Morse exams for an applicant holding an Amateur Extra Class license. That was a very signicicant relaxation of test standards for the commercial Radiotelegraph license, but by then there wasn't much call for the license. > > I never did get into Radio Officer work because a few months after licensing a new but permanent medical condition disqualified me from Safety-of-Life-at-Sea (SOLAS) duties. During Desert Storm/Desert Shield the US began reactivating enough old US-flag merchant vessels that one of the Radio Officer associations solicited license holders for a short paid training program and employment as new Radio Officers. Even 30 years ago there weren't many newcomers interested in starting a obvious dead end career, but 15 years earlier I'd have sent in my application if medically qualified. > > WRT Phil's comments below, it surprises me when hams claim adamantly that their Morse test was code groups. I attribute that to fading memory. Similary, it was recently stated that a Broadcast Endorsement was attained after earning the Radiotelephone First Class license. The Broadcast Endorsement was granted only to Third Class license holders to show that the announcer (with Third Class license) also had knowledge to serve as transmitter attendant (with Broadcast Endorsement) at small broadcast stations. Memory plays tricks on us old people. :-) > > Mike / KK5F > From k2asp at kanafi.org Thu Apr 30 22:54:35 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 30 Apr 2020 19:54:35 -0700 Subject: [Elecraft] New Mystery: Copying groups vs plain language text (Rather OT) In-Reply-To: <1155286425.1872.1588294216465@wamui-marley.atl.sa.earthlink.net> References: <1155286425.1872.1588294216465@wamui-marley.atl.sa.earthlink.net> Message-ID: On 4/30/2020 5:50 PM, Mike Morrow wrote: > The First Class license had the same written elements (1, 2, 5, 6) as > the Second Class license but the Morse test was 25 wpm Plain Language > and 20 wpm Code Groups, plus a six-month service requirement at > stations open to public correspondence. The experience requirement for the First Telegraph was a year at a station open to public correspondence (see below). The Six Months Endorsement required six moths or more actual experience on an ocean-going passenger or cargo vessel and was required to be the sole operator on an ocean-going cargo vessel. Without that, the operator could only be an operator at a coast station or a second operator on a passenger or cargo vessel. The FCC no longer issues or tests for First Telegraph licenses, and existing licenses were renewed as lifetime licenses as were Second Telegraph licenses, now renamed as plain Radiotelegraph Operator License. > (That "public correspondence" service requirement kept many operators > with decades of commercial Morse service from ever getting a First Class > license. However, every maritime Morse station was defined as open to > public correspondence even if it was on a freighter and never had any > such traffic.) An exception was made for several Naval Communication Stations that handled traffic from civilian vessels - the most prominent one was Balboa in the Canal Zone. "Public correspondence" was not limited to someone walking in to send a telegram. All messages from vessels handled through Public Coast stations (RCA, Mackay Radio, etc) were considered "public correspondence". 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From dean.k2ww at gmail.com Thu Apr 30 23:29:54 2020 From: dean.k2ww at gmail.com (Dean L) Date: Thu, 30 Apr 2020 23:29:54 -0400 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: <64ecf159-e10d-9e4f-27b7-81f92b975e47@comcast.net> <3f10135b-4e8c-1c22-1877-f2b4a717d94c@audiosystemsgroup.com> <5055ac48-f2ab-6acd-9548-6296733f7162@pinewooddata.com> <55D57003-1297-4D2F-9DAD-E621A5D48D4D@charter.net> <134060891.266790839.1588272448704.JavaMail.zimbra@q.com> <6492a20d-b768-6957-09ae-7f73c6a35201@pinewooddata.com> Message-ID: We all have similar stories, sad part is, there are extra class licensees that dont know any more about oscillators than ohms law or caculating the length of a half wave dipole. The ones to "tell the tell" ain't gonna be around forever, few of us left, ain't no more coming over. 73 Dean K2WW On Apr 30, 2020 21:43, "Phil Kane" wrote: On 4/30/2020 12:58 PM, John Simmons wrote: > All the broadcast inspections are now contracted out to private companies. Not exactly. The FCC started the Alternate Broadcast Inspection Program (ABIT) about the time that I retired from the FCC. in the mid 1990s when there was a push to privatize Federal agency obligations to some extent. The FCC did it for broadcast station inspections, ship station safety inspections, and resolution of harmful interference. ABIT is a voluntary program under the management of the various state broadcasters' associations that contract with individuals to make compliance inspections of broadcast stations. The station pays the association a fixed fee, and the association pays the inspector. I contracted with the California association from 1996 until 1999 and traveled all over the state. Notification of passing an ABIT inspection was sent to the FCC but failures were not so reported. I don't know if that is still done. Such passing was regarded as "insulation" from FCC inspection for three years but the FCC still has the obligation to inspect broadcast stations both on a random basis for compliance with specific programs such as tower lighting and EAS compliance or if a complaint has been filed that bears on rule compliance, technical and otherwise. -- 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 dean.k2ww at gmail.com From josh at voodoolab.com Thu Apr 30 23:42:42 2020 From: josh at voodoolab.com (Josh Fiden) Date: Thu, 30 Apr 2020 20:42:42 -0700 Subject: [Elecraft] OT: The Colpitts mystery In-Reply-To: References: Message-ID: The barrier to entry certainly isn?t what it used to be, but that?s probably a good thing. If someone gets on the air and has fun (even FT8 hihi), I really don?t care if they can recite Ohm?s law or not. When they are interested, it?s as easy as picking up a copy of the ARRL Handbook. Doesn?t have to be an oral tradition. As long as I can call CQ and get an answer, things aren?t too bad! 73 Josh W6XU (WN6VUD 1972, WA6VUD 1973) Sent from my mobile device > On Apr 30, 2020, at 8:30 PM, Dean L wrote: > > ?We all have similar stories, sad part is, there are extra class licensees > that dont know any more about oscillators than ohms law or caculating the > length of a half wave dipole. > > The ones to "tell the tell" ain't gonna be around forever, few of us left, > ain't no more coming over. > 73 > Dean K2WW >