From nr4c at widomaker.com Tue Sep 1 00:44:13 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 1 Sep 2020 00:44:13 -0400 Subject: [Elecraft] [K4] Shipping?? Message-ID: <748D6EC5-723F-4382-B00C-0DEC5A32841F@widomaker.com> Did anyone hear of any K4s being shipped yesterday, August 31st. Sent from my iPhone ...nr4c. bill From macymonkeys at charter.net Tue Sep 1 00:55:51 2020 From: macymonkeys at charter.net (Macy monkeys) Date: Mon, 31 Aug 2020 21:55:51 -0700 Subject: [Elecraft] [K4] Shipping?? Message-ID: It's not midnight yet on the west coast :) John K7FD > On Aug 31, 2020, at 9:44 PM, Nr4c wrote: > > 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 macymonkeys at charter.net From nr4c at widomaker.com Tue Sep 1 07:29:01 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 1 Sep 2020 07:29:01 -0400 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: References: Message-ID: But well after closing for any of their regular shippers! Sent from my iPhone ...nr4c. bill > On Sep 1, 2020, at 12:55 AM, Macy monkeys wrote: > > ? > It's not midnight yet on the west coast :) > > John K7FD > >> On Aug 31, 2020, at 9:44 PM, Nr4c wrote: >> >> 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 macymonkeys at charter.net From n6lrv at outlook.com Tue Sep 1 10:16:46 2020 From: n6lrv at outlook.com (n6lrv at outlook.com) Date: Tue, 1 Sep 2020 14:16:46 +0000 Subject: [Elecraft] [OT] WWV Time Transmissions In-Reply-To: References: , Message-ID: Bill, WWVB added a new modulation format starting around 2012/13 that includes a phase shift that some older clocks can no longer resolve. If you're technically inclined the internet is loaded with fixes for some older clocks as well as further information on this topic like . Gary, N6LRV ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Bill Frantz Sent: Monday, August 31, 2020 5:44 PM To: Elecraft at mailman.qth.net Subject: [Elecraft] [OT] WWV Time Transmissions I had a friend ask me if something has happened to WWV's time transmissions. He says the clocks in his home and his watch are no longer syncing correctly. I think these are syncing to signals at about 60KHz. Does anyone know anything about this? 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz | "The only thing we have to | Periwinkle (408)348-7900 | fear is fear itself." - FDR | 150 Rivermead Rd #235 www.pwpconsult.com | Inaugural address, 3/4/1933 | Peterborough, NH 03458 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n6lrv at outlook.com From ian.ls at hotmail.co.uk Tue Sep 1 10:53:24 2020 From: ian.ls at hotmail.co.uk (Ian Liston-Smith) Date: Tue, 1 Sep 2020 14:53:24 +0000 Subject: [Elecraft] Fw: KXFL3 - missing install menu settings In-Reply-To: References: Message-ID: Been trying to install the KXFL3 filter today in my new KX3. I do not have RX SHIFT or SMTR MD in the menu to set to NOR. Have I missed something of does my serial number 11425 not have those? If not, can I carry on the install without using those settings? Thanks. Ian, G4JQT ________________________________ From: Ian Liston-Smith Sent: 01 September 2020 15:49 To: elecraft-kx at groups.io Subject: KXFL3 - missing install menu settings Been trying to install the KXFL3 filter today in my new KX3. I do not have RX SHIFT or SMTR MD in the menu to set to NOR. Have I missed something of does my serial number 11425 not have those? If not can I carry on the install without using those settings? Thanks. Ian, G4JQT [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif] Virus-free. www.avast.com From ac5p at sbcglobal.net Tue Sep 1 11:00:28 2020 From: ac5p at sbcglobal.net (Mike Maloney) Date: Tue, 1 Sep 2020 15:00:28 +0000 (UTC) Subject: [Elecraft] [OT] WWV Time Transmissions In-Reply-To: References: Message-ID: <1398940966.1112842.1598972428893@mail.yahoo.com> Does anyone know any engineers who are hams at NIST, Fort Collins, CO?I be curious to know the RF loading coil and ground currents under the 0.024 wave stub? verticals for 5000M WWVB. Mike AC5P On Tuesday, September 1, 2020, 09:17:41 AM CDT, n6lrv at outlook.com wrote: Bill, WWVB added a new modulation format starting around 2012/13 that includes a phase shift that some older clocks can no longer resolve. If you're technically inclined the internet is loaded with fixes for some older clocks as well as further information on this topic like . Gary, N6LRV ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Bill Frantz Sent: Monday, August 31, 2020 5:44 PM To: Elecraft at mailman.qth.net Subject: [Elecraft] [OT] WWV Time Transmissions I had a friend ask me if something has happened to WWV's time transmissions. He says the clocks in his home and his watch are no longer syncing correctly. I think these are syncing to signals at about 60KHz. Does anyone know anything about this? 73 Bill AE6JV ----------------------------------------------------------------------- Bill Frantz? ? ? ? | "The only thing we have to? | Periwinkle (408)348-7900? ? ? | fear is fear itself." - FDR? | 150 Rivermead Rd #235 www.pwpconsult.com | Inaugural address, 3/4/1933? | Peterborough, NH 03458 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to n6lrv 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 ac5p at sbcglobal.net From ghyoungman at gmail.com Tue Sep 1 11:09:54 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Tue, 1 Sep 2020 11:09:54 -0400 Subject: [Elecraft] Fw: KXFL3 - missing install menu settings In-Reply-To: References: Message-ID: Do you have TECH MD turned on in the menus? It must be on to see these entries. Grant NQ5T Sent from my iPhone > On Sep 1, 2020, at 10:53 AM, Ian Liston-Smith wrote: > > ? > Been trying to install the KXFL3 filter today in my new KX3. I do not have RX SHIFT or SMTR MD in the menu to set to NOR. Have I missed something of does my serial number 11425 not have those? If not, can I carry on the install without using those settings? Thanks. > > Ian, G4JQT > ________________________________ > From: Ian Liston-Smith > Sent: 01 September 2020 15:49 > To: elecraft-kx at groups.io > Subject: KXFL3 - missing install menu settings > > > Been trying to install the KXFL3 filter today in my new KX3. I do not have RX SHIFT or SMTR MD in the menu to set to NOR. Have I missed something of does my serial number 11425 not have those? If not can I carry on the install without using those settings? Thanks. > > Ian, G4JQT > > [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif] Virus-free. www.avast.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ghyoungman at gmail.com From ian.ls at hotmail.co.uk Tue Sep 1 11:34:59 2020 From: ian.ls at hotmail.co.uk (Ian Liston-Smith) Date: Tue, 1 Sep 2020 15:34:59 +0000 Subject: [Elecraft] Fw: Fw: KXFL3 - missing install menu settings In-Reply-To: References: , , Message-ID: From: Ian Liston-Smith Sent: 01 September 2020 16:22 To: Grant Youngman Subject: Re: [Elecraft] Fw: KXFL3 - missing install menu settings Thank you Grant! No I didn't have that setting on. And I didn't see it in the instructions!! Thanks again. 73, Ian, G4JQT ________________________________ From: Grant Youngman Sent: 01 September 2020 16:09 To: Ian Liston-Smith Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Fw: KXFL3 - missing install menu settings Do you have TECH MD turned on in the menus? It must be on to see these entries. Grant NQ5T Sent from my iPhone > On Sep 1, 2020, at 10:53 AM, Ian Liston-Smith wrote: > > ? > Been trying to install the KXFL3 filter today in my new KX3. I do not have RX SHIFT or SMTR MD in the menu to set to NOR. Have I missed something of does my serial number 11425 not have those? If not, can I carry on the install without using those settings? Thanks. > > Ian, G4JQT > ________________________________ > From: Ian Liston-Smith > Sent: 01 September 2020 15:49 > To: elecraft-kx at groups.io > Subject: KXFL3 - missing install menu settings > > > Been trying to install the KXFL3 filter today in my new KX3. I do not have RX SHIFT or SMTR MD in the menu to set to NOR. Have I missed something of does my serial number 11425 not have those? If not can I carry on the install without using those settings? Thanks. > > Ian, G4JQT > > [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif] Virus-free. www.avast.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ghyoungman at gmail.com [https://ipmcdn.avast.com/images/icons/icon-envelope-tick-round-orange-animated-no-repeat-v1.gif] Virus-free. www.avast.com From n6kr at elecraft.com Tue Sep 1 12:11:21 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 1 Sep 2020 09:11:21 -0700 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: References: Message-ID: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> A small batch is in process to go out this week, and I'm sure Eric will post an update. So how about a weather report? This past few weeks has been very difficult for California and the Bay Area in particular. No one could have anticipated this at the beginning of the month (remember the Ham Expo?), since fire season is usually in October. But worst-case conditions have been brewing for some time. Thanks to drought and record temperatures everything has become tinder-dry (10 years ago we'd get a few winter days in the 30F range, now the lowest we ever see is 40F). Bark beetle larvae are no longer culled during winter, turning trees into an insect sm?rg?sbord. This has left forests all over the West vulnerable. We had employees evacuated due to fires burning in or near the factory, and many of us elsewhere were on official alert status, thinking about what to pack. During this time the air quality has been horrendous (AQI over 200 some days). This has temporarily upended our strategy of keeping all the doors open to provide safe working conditions in the midst of the ongoing pandemic (remember that?) meaning virtually everyone is working from home. My family had to buy N95 masks just to be able to run errands. We still need them about 50% of the time, though the firefighters are making progress. In related news, one of our local field testers lost pretty much everything he owned, including his K4, due to one fire's unprecedented rampage through our coastal forests. And still we persist. All I can say, in the humbling face of nature, is...QRX. 73, Wayne N6KR > On Sep 1, 2020, at 4:29 AM, Nr4c wrote: > > But well after closing for any of their regular shippers! > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 1, 2020, at 12:55 AM, Macy monkeys wrote: >> >> ? >> It's not midnight yet on the west coast :) >> >> John K7FD From w5sv.dave at gmail.com Tue Sep 1 12:17:16 2020 From: w5sv.dave at gmail.com (David F. Reed) Date: Tue, 1 Sep 2020 16:17:16 +0000 Subject: [Elecraft] Interfacing KX2 to KPA1500 Message-ID: I am trying to drive my KPA1500 with my KX2; I know I will get about 200 watts output which is fine.? I want to do it for the time period between selling my K3 and receiving my K4. I have? the KXPACBL_KXPA100 Integrated Cable and KX2ACBL_KX2 Accessory Cable set, but am unsure how I hook it up.? It seems there will be some leftover stuff dangling... Anyone out there done this that can clue me in please? Thanks & 73 de W5SV, Dave From bjorn at ekelund.nu Tue Sep 1 12:29:54 2020 From: bjorn at ekelund.nu (=?UTF-8?Q?Bj=C3=B6rn_Ekelund?=) Date: Tue, 1 Sep 2020 18:29:54 +0200 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> Message-ID: Hi Wayne, Since you are now shipping; When can we expect the K4 programmer's manual to be available for download? We want to make sure the DXLog (www.dxlog.net) contest logger supports K4 as soon as possible. I emailed you a few months ago but I guess that was too early. Bj?rn SM7IUN Den tis 1 sep. 2020 kl 18:20 skrev Wayne Burdick : > A small batch is in process to go out this week, and I'm sure Eric will > post an update. > > So how about a weather report? > > This past few weeks has been very difficult for California and the Bay > Area in particular. No one could have anticipated this at the beginning of > the month (remember the Ham Expo?), since fire season is usually in > October. But worst-case conditions have been brewing for some time. Thanks > to drought and record temperatures everything has become tinder-dry (10 > years ago we'd get a few winter days in the 30F range, now the lowest we > ever see is 40F). Bark beetle larvae are no longer culled during winter, > turning trees into an insect sm?rg?sbord. This has left forests all over > the West vulnerable. > > We had employees evacuated due to fires burning in or near the factory, > and many of us elsewhere were on official alert status, thinking about what > to pack. During this time the air quality has been horrendous (AQI over 200 > some days). This has temporarily upended our strategy of keeping all the > doors open to provide safe working conditions in the midst of the ongoing > pandemic (remember that?) meaning virtually everyone is working from home. > My family had to buy N95 masks just to be able to run errands. We still > need them about 50% of the time, though the firefighters are making > progress. > > In related news, one of our local field testers lost pretty much > everything he owned, including his K4, due to one fire's unprecedented > rampage through our coastal forests. > > And still we persist. > > All I can say, in the humbling face of nature, is...QRX. > > 73, > Wayne > N6KR > > > > > On Sep 1, 2020, at 4:29 AM, Nr4c wrote: > > > > But well after closing for any of their regular shippers! > > > > Sent from my iPhone > > ...nr4c. bill > > > > > >> On Sep 1, 2020, at 12:55 AM, Macy monkeys > wrote: > >> > >> ? > >> It's not midnight yet on the west coast :) > >> > >> John K7FD > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to bjorn at ekelund.nu From w5sum at comcast.net Tue Sep 1 12:36:43 2020 From: w5sum at comcast.net (w5sum at comcast.net) Date: Tue, 1 Sep 2020 11:36:43 -0500 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <1398940966.1112842.1598972428893@mail.yahoo.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: This morning I put up a W7FG true ladder line 160M doublet. Upon testing, the K3 internal atu does great, matches at 1.3:1. But when I throw the KAP1500 in line, it gets all pissed off, throws up and faults out. Says SWR is 99:1 !!! The Antenna: The Apex is at 50'. It is in a inverted Vee config, with both ends approx 20' off the ground. I'm using 59' of the 600 ohm true ladder line to a Balun Designs 5KW 4:1 Balun. This is fed with 22' of Wilson LMR400 Both the K3 internal atu, AND the KPA1500 internal atu get a great match on 80M, 1.2:1 with no issues. Honestly, most of the work on 160M is FT8 running 20 watts or less, so just using the K3 to get a successful match on 160M is fine I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. Any ideas here fellers? thanks and 73 73 and GL OM DE w5sum From rich at wc3t.us Tue Sep 1 12:39:43 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Tue, 1 Sep 2020 12:39:43 -0400 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> Message-ID: Please stay safe. The K4 is just parts. You are irreplaceable. On Tue, Sep 1, 2020 at 12:11 PM Wayne Burdick wrote: > A small batch is in process to go out this week, and I'm sure Eric will > post an update. > > So how about a weather report? > > This past few weeks has been very difficult for California and the Bay > Area in particular. No one could have anticipated this at the beginning of > the month (remember the Ham Expo?), since fire season is usually in > October. But worst-case conditions have been brewing for some time. Thanks > to drought and record temperatures everything has become tinder-dry (10 > years ago we'd get a few winter days in the 30F range, now the lowest we > ever see is 40F). Bark beetle larvae are no longer culled during winter, > turning trees into an insect sm?rg?sbord. This has left forests all over > the West vulnerable. > > We had employees evacuated due to fires burning in or near the factory, > and many of us elsewhere were on official alert status, thinking about what > to pack. During this time the air quality has been horrendous (AQI over 200 > some days). This has temporarily upended our strategy of keeping all the > doors open to provide safe working conditions in the midst of the ongoing > pandemic (remember that?) meaning virtually everyone is working from home. > My family had to buy N95 masks just to be able to run errands. We still > need them about 50% of the time, though the firefighters are making > progress. > > In related news, one of our local field testers lost pretty much > everything he owned, including his K4, due to one fire's unprecedented > rampage through our coastal forests. > > And still we persist. > > All I can say, in the humbling face of nature, is...QRX. > > 73, > Wayne > N6KR > > > > > On Sep 1, 2020, at 4:29 AM, Nr4c wrote: > > > > But well after closing for any of their regular shippers! > > > > Sent from my iPhone > > ...nr4c. bill > > > > > >> On Sep 1, 2020, at 12:55 AM, Macy monkeys > wrote: > >> > >> ? > >> It's not midnight yet on the west coast :) > >> > >> John K7FD > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 dick at elecraft.com Tue Sep 1 12:44:13 2020 From: dick at elecraft.com (Dick Dievendorff) Date: Tue, 1 Sep 2020 09:44:13 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: <005d01d6807f$1fca93a0$5f5fbae0$@elecraft.com> What is the SWR of the antenna if the K3 ATU and KPA1500 ATU are both bypassed? Keep the KPA1500 in mode STBY and ATU Mode BYP for this. 73 de Dick, K6KR -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of w5sum at comcast.net Sent: Tuesday, September 1, 2020 09:37 To: Elecraft Reflector Subject: [Elecraft] my KPA1500 and 160M This morning I put up a W7FG true ladder line 160M doublet. Upon testing, the K3 internal atu does great, matches at 1.3:1. But when I throw the KAP1500 in line, it gets all pissed off, throws up and faults out. Says SWR is 99:1 !!! The Antenna: The Apex is at 50'. It is in a inverted Vee config, with both ends approx 20' off the ground. I'm using 59' of the 600 ohm true ladder line to a Balun Designs 5KW 4:1 Balun. This is fed with 22' of Wilson LMR400 Both the K3 internal atu, AND the KPA1500 internal atu get a great match on 80M, 1.2:1 with no issues. Honestly, most of the work on 160M is FT8 running 20 watts or less, so just using the K3 to get a successful match on 160M is fine I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. Any ideas here fellers? thanks and 73 73 and GL OM DE w5sum ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 n6kr at elecraft.com Tue Sep 1 12:47:47 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 1 Sep 2020 09:47:47 -0700 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> Message-ID: <5334B305-323E-4CC5-9CDA-97529ACF876F@elecraft.com> Hi Bj?rn, The programmer's reference is mostly complete, but I still have to separate out internal vs. public commands. That was the plan, right up until the the fires :-/ Are you already on our developer's list? We'll be posting the programmer's reference to this list as soon as it's ready. 73, Wayne N6KR > On Sep 1, 2020, at 9:29 AM, Bj?rn Ekelund wrote: > > Hi Wayne, > > Since you are now shipping; When can we expect the K4 programmer's manual to be available for download? > > We want to make sure the DXLog (www.dxlog.net) contest logger supports K4 as soon as possible. > > I emailed you a few months ago but I guess that was too early. > > Bj?rn SM7IUN > > Den tis 1 sep. 2020 kl 18:20 skrev Wayne Burdick : > A small batch is in process to go out this week, and I'm sure Eric will post an update. > > So how about a weather report? > > This past few weeks has been very difficult for California and the Bay Area in particular. No one could have anticipated this at the beginning of the month (remember the Ham Expo?), since fire season is usually in October. But worst-case conditions have been brewing for some time. Thanks to drought and record temperatures everything has become tinder-dry (10 years ago we'd get a few winter days in the 30F range, now the lowest we ever see is 40F). Bark beetle larvae are no longer culled during winter, turning trees into an insect sm?rg?sbord. This has left forests all over the West vulnerable. > > We had employees evacuated due to fires burning in or near the factory, and many of us elsewhere were on official alert status, thinking about what to pack. During this time the air quality has been horrendous (AQI over 200 some days). This has temporarily upended our strategy of keeping all the doors open to provide safe working conditions in the midst of the ongoing pandemic (remember that?) meaning virtually everyone is working from home. My family had to buy N95 masks just to be able to run errands. We still need them about 50% of the time, though the firefighters are making progress. > > In related news, one of our local field testers lost pretty much everything he owned, including his K4, due to one fire's unprecedented rampage through our coastal forests. > > And still we persist. > > All I can say, in the humbling face of nature, is...QRX. > > 73, > Wayne > N6KR > > > > > On Sep 1, 2020, at 4:29 AM, Nr4c wrote: > > > > But well after closing for any of their regular shippers! > > > > Sent from my iPhone > > ...nr4c. bill > > > > > >> On Sep 1, 2020, at 12:55 AM, Macy monkeys wrote: > >> > >> ? > >> It's not midnight yet on the west coast :) > >> > >> John K7FD > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to bjorn at ekelund.nu From kd2bd at yahoo.com Tue Sep 1 13:06:28 2020 From: kd2bd at yahoo.com (John Magliacane) Date: Tue, 1 Sep 2020 17:06:28 +0000 (UTC) Subject: [Elecraft] [OT] WWVB Time Transmissions In-Reply-To: References: Message-ID: <1210061178.1312855.1598979988817@mail.yahoo.com> > Bill, > WWVB added a new modulation format starting around 2012/13 that includes a phase shift that some older clocks can > no longer resolve. Gary, The 2012 addition of BPSK modulation doesn't affect WWVB-controlled clocks -- only older carrier phase tracking receivers that use WWVB as a frequency reference that were designed prior to the October 29, 2012 modulation format change. NIST has several receivers scattered around the country that monitor WWVB signal levels, 24 hours a day. You can check the status any time by going here: https://tf.nist.gov/tf-cgi/wwvbmonitor_e.cgi Occasionally, WWVB is taken off the air for brief periods of time. Information on outages can be found here: https://www.nist.gov/pml/time-and-frequency-division/radio-stations/wwvb/wwvb-station-outages NIST Special Publication 250-67 provides technical details regarding the transmitters, feedlines, antenna systems, and routine maintenance procedures employed at WWV, WWVB, and WWVH. 73 de John, KD2BD From ted.roycraft at gmail.com Tue Sep 1 13:15:21 2020 From: ted.roycraft at gmail.com (Ted Roycraft) Date: Tue, 1 Sep 2020 13:15:21 -0400 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: <5334B305-323E-4CC5-9CDA-97529ACF876F@elecraft.com> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> <5334B305-323E-4CC5-9CDA-97529ACF876F@elecraft.com> Message-ID: <8506a44b-9204-9208-1b92-54ac61649c23@gmail.com> Wayne and Eric, I'm very sorry for all the problems you guys in California are having dealing with multiple problems beyond your control and it is completely understandable why the K4 has been delayed.? I'm sure that no one wants them shipping more than you do.. Anyway, I am writing you to ask you if you could do something like you did when the K2 had many orders that you had to fill on a first come/first served basis.? Back then, every day you shipped, you posted the order date of the last K2 to go out the door that day. Could you do something similar with the K4?? In this case, initially for Group 1, publish the "deposit date" made by the buyer of the last K4 to go out the door that day.? I'm sure with the K2, that policy eliminated a lot of emails asking "how close am I to getting my K2".? And, contrary to the opinion of some of us, I think this policy would cut way down on the unnecessary emails coming to this mailing list asking "when am I getting my K4". Best regards, Ted Roycraft, W2ZK On 9/1/2020 12:47, Wayne Burdick wrote: > Hi Bj?rn, > > The programmer's reference is mostly complete, but I still have to separate out internal vs. public commands. That was the plan, right up until the the fires :-/ > > Are you already on our developer's list? We'll be posting the programmer's reference to this list as soon as it's ready. > > 73, > Wayne > N6KR > > >> On Sep 1, 2020, at 9:29 AM, Bj?rn Ekelund wrote: >> >> Hi Wayne, >> >> Since you are now shipping; When can we expect the K4 programmer's manual to be available for download? >> >> We want to make sure the DXLog (www.dxlog.net) contest logger supports K4 as soon as possible. >> >> I emailed you a few months ago but I guess that was too early. >> >> Bj?rn SM7IUN >> >> Den tis 1 sep. 2020 kl 18:20 skrev Wayne Burdick : >> A small batch is in process to go out this week, and I'm sure Eric will post an update. >> >> So how about a weather report? >> >> This past few weeks has been very difficult for California and the Bay Area in particular. No one could have anticipated this at the beginning of the month (remember the Ham Expo?), since fire season is usually in October. But worst-case conditions have been brewing for some time. Thanks to drought and record temperatures everything has become tinder-dry (10 years ago we'd get a few winter days in the 30F range, now the lowest we ever see is 40F). Bark beetle larvae are no longer culled during winter, turning trees into an insect sm?rg?sbord. This has left forests all over the West vulnerable. >> >> We had employees evacuated due to fires burning in or near the factory, and many of us elsewhere were on official alert status, thinking about what to pack. During this time the air quality has been horrendous (AQI over 200 some days). This has temporarily upended our strategy of keeping all the doors open to provide safe working conditions in the midst of the ongoing pandemic (remember that?) meaning virtually everyone is working from home. My family had to buy N95 masks just to be able to run errands. We still need them about 50% of the time, though the firefighters are making progress. >> >> In related news, one of our local field testers lost pretty much everything he owned, including his K4, due to one fire's unprecedented rampage through our coastal forests. >> >> And still we persist. >> >> All I can say, in the humbling face of nature, is...QRX. >> >> 73, >> Wayne >> N6KR >> >> >> >>> On Sep 1, 2020, at 4:29 AM, Nr4c wrote: >>> >>> But well after closing for any of their regular shippers! >>> >>> Sent from my iPhone >>> ...nr4c. bill >>> >>> >>>> On Sep 1, 2020, at 12:55 AM, Macy monkeys wrote: >>>> >>>> ? >>>> It's not midnight yet on the west coast :) >>>> >>>> John K7FD >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to bjorn at ekelund.nu > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ab7echo at gmail.com Tue Sep 1 13:27:46 2020 From: ab7echo at gmail.com (David Gilbert) Date: Tue, 1 Sep 2020 10:27:46 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: One distinct possibility is that the 4:1 balun is getting hot at 1500 watts.? Have you tried running the KPA1500 at a lower power? 73, Dave? AB7E On 9/1/2020 9:36 AM, w5sum at comcast.net wrote: > This morning I put up a W7FG true ladder line 160M doublet.?? Upon > testing, the K3 internal atu does great, matches at 1.3:1.? But when I > throw the KAP1500 in line, it gets all pissed off, throws up and > faults out.? Says SWR is 99:1 !!! > > The Antenna:? The Apex is at 50'.? It is in a inverted Vee config, > with both ends approx 20' off the ground.?? I'm using 59' of the 600 > ohm true ladder line to a Balun Designs 5KW 4:1 Balun. This is fed > with 22' of Wilson LMR400 > > Both the K3 internal atu, AND the KPA1500 internal atu get a great > match on 80M, 1.2:1?? with no issues. > > Honestly, most of the work on 160M is FT8 running 20 watts or less, so > just using the K3 to get a successful match on 160M is fine > > I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. > > Any ideas here fellers? > > thanks and 73 > > 73 and GL OM DE w5sum From dcarille at yahoo.com Tue Sep 1 13:30:20 2020 From: dcarille at yahoo.com (Daniel Carille) Date: Tue, 1 Sep 2020 17:30:20 +0000 (UTC) Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: <659118019.1194584.1598981420167@mail.yahoo.com> Be sure the K3 tuner is off when using the KPA1500?s tuner.? Dan - NB2P Sent from Yahoo Mail for iPhone On Tuesday, September 1, 2020, 12:51 PM, w5sum at comcast.net wrote: This morning I put up a W7FG true ladder line 160M doublet.? Upon testing, the K3 internal atu does great, matches at 1.3:1.? But when I throw the KAP1500 in line, it gets all pissed off, throws up and faults out.? Says SWR is 99:1 !!! The Antenna:? The Apex is at 50'.? It is in a inverted Vee config, with both ends approx 20' off the ground.? I'm using 59' of the 600 ohm true ladder line to a Balun Designs 5KW 4:1 Balun. This is fed with 22' of Wilson LMR400 Both the K3 internal atu, AND the KPA1500 internal atu get a great match on 80M, 1.2:1? with no issues. Honestly, most of the work on 160M is FT8 running 20 watts or less, so just using the K3 to get a successful match on 160M is fine I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. Any ideas here fellers? thanks and 73 73 and GL OM DE w5sum ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to dcarille at yahoo.com From va3mw at portcredit.net Tue Sep 1 13:43:03 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 1 Sep 2020 13:43:03 -0400 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <659118019.1194584.1598981420167@mail.yahoo.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <659118019.1194584.1598981420167@mail.yahoo.com> Message-ID: Do you have actual antenna measurements with an analyzer? It would be helpful to know what the KTA500 is seeing. Mike va3mw On Tue, Sep 1, 2020 at 1:31 PM Daniel Carille via Elecraft < elecraft at mailman.qth.net> wrote: > Be sure the K3 tuner is off when using the KPA1500?s tuner. > Dan - NB2P > > > Sent from Yahoo Mail for iPhone > > > On Tuesday, September 1, 2020, 12:51 PM, w5sum at comcast.net wrote: > > This morning I put up a W7FG true ladder line 160M doublet. Upon testing, > the K3 internal atu does great, matches at 1.3:1. But when I throw the > KAP1500 in line, it gets all pissed off, throws up and faults out. Says > SWR > is 99:1 !!! > > The Antenna: The Apex is at 50'. It is in a inverted Vee config, with > both > ends approx 20' off the ground. I'm using 59' of the 600 ohm true ladder > line to a Balun Designs 5KW 4:1 Balun. This is fed with 22' of Wilson > LMR400 > > Both the K3 internal atu, AND the KPA1500 internal atu get a great match > on > 80M, 1.2:1 with no issues. > > Honestly, most of the work on 160M is FT8 running 20 watts or less, so > just > using the K3 to get a successful match on 160M is fine > > I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. > > Any ideas here fellers? > > thanks and 73 > > 73 and GL OM DE w5sum > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dcarille 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 va3mw at portcredit.net From bjorn at ekelund.nu Tue Sep 1 13:47:10 2020 From: bjorn at ekelund.nu (=?UTF-8?Q?Bj=C3=B6rn_Ekelund?=) Date: Tue, 1 Sep 2020 19:47:10 +0200 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: <5334B305-323E-4CC5-9CDA-97529ACF876F@elecraft.com> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> <5334B305-323E-4CC5-9CDA-97529ACF876F@elecraft.com> Message-ID: I am so sorry to hear about your fires, as if covid19 was not a burden enough. I don't think I'm on any developer's list but would love to get on it if possible. I do most of the radio interface coding in the DXLog dev team. We have a decent number of users and take pride in supporting new radios. I'm particularly eager to implement SO2V for the K4 since I believe it will rock that mode. There are also some ideas about waterfall control (zoom etc.) from the logger. Bj?rn SM7IUN Den tis 1 sep. 2020 kl 18:47 skrev Wayne Burdick : > Hi Bj?rn, > > The programmer's reference is mostly complete, but I still have to > separate out internal vs. public commands. That was the plan, right up > until the the fires :-/ > > Are you already on our developer's list? We'll be posting the programmer's > reference to this list as soon as it's ready. > > 73, > Wayne > N6KR > > > > On Sep 1, 2020, at 9:29 AM, Bj?rn Ekelund wrote: > > > > Hi Wayne, > > > > Since you are now shipping; When can we expect the K4 programmer's > manual to be available for download? > > > > We want to make sure the DXLog (www.dxlog.net) contest logger supports > K4 as soon as possible. > > > > I emailed you a few months ago but I guess that was too early. > > > > Bj?rn SM7IUN > > > > Den tis 1 sep. 2020 kl 18:20 skrev Wayne Burdick : > > A small batch is in process to go out this week, and I'm sure Eric will > post an update. > > > > So how about a weather report? > > > > This past few weeks has been very difficult for California and the Bay > Area in particular. No one could have anticipated this at the beginning of > the month (remember the Ham Expo?), since fire season is usually in > October. But worst-case conditions have been brewing for some time. Thanks > to drought and record temperatures everything has become tinder-dry (10 > years ago we'd get a few winter days in the 30F range, now the lowest we > ever see is 40F). Bark beetle larvae are no longer culled during winter, > turning trees into an insect sm?rg?sbord. This has left forests all over > the West vulnerable. > > > > We had employees evacuated due to fires burning in or near the factory, > and many of us elsewhere were on official alert status, thinking about what > to pack. During this time the air quality has been horrendous (AQI over 200 > some days). This has temporarily upended our strategy of keeping all the > doors open to provide safe working conditions in the midst of the ongoing > pandemic (remember that?) meaning virtually everyone is working from home. > My family had to buy N95 masks just to be able to run errands. We still > need them about 50% of the time, though the firefighters are making > progress. > > > > In related news, one of our local field testers lost pretty much > everything he owned, including his K4, due to one fire's unprecedented > rampage through our coastal forests. > > > > And still we persist. > > > > All I can say, in the humbling face of nature, is...QRX. > > > > 73, > > Wayne > > N6KR > > > > > > > > > On Sep 1, 2020, at 4:29 AM, Nr4c wrote: > > > > > > But well after closing for any of their regular shippers! > > > > > > Sent from my iPhone > > > ...nr4c. bill > > > > > > > > >> On Sep 1, 2020, at 12:55 AM, Macy monkeys > wrote: > > >> > > >> ? > > >> It's not midnight yet on the west coast :) > > >> > > >> John K7FD > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to bjorn at ekelund.nu > > From n4zr at comcast.net Tue Sep 1 14:18:14 2020 From: n4zr at comcast.net (N4ZR) Date: Tue, 1 Sep 2020 14:18:14 -0400 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> <659118019.1194584.1598981420167@mail.yahoo.com> Message-ID: <7db591ea-31b4-113b-293f-56ee660ed6c2@comcast.net> Or, for that matter, try it into a dummy load, so that you can verify the performance of the KPA-1500's tuner on 160. 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 9/1/2020 1:43 PM, Michael Walker wrote: > Do you have actual antenna measurements with an analyzer? It would be > helpful to know what the KTA500 is seeing. > > Mike va3mw > > > On Tue, Sep 1, 2020 at 1:31 PM Daniel Carille via Elecraft < > elecraft at mailman.qth.net> wrote: > >> Be sure the K3 tuner is off when using the KPA1500?s tuner. >> Dan - NB2P >> >> >> Sent from Yahoo Mail for iPhone >> >> >> On Tuesday, September 1, 2020, 12:51 PM, w5sum at comcast.net wrote: >> >> This morning I put up a W7FG true ladder line 160M doublet. Upon testing, >> the K3 internal atu does great, matches at 1.3:1. But when I throw the >> KAP1500 in line, it gets all pissed off, throws up and faults out. Says >> SWR >> is 99:1 !!! >> >> The Antenna: The Apex is at 50'. It is in a inverted Vee config, with >> both >> ends approx 20' off the ground. I'm using 59' of the 600 ohm true ladder >> line to a Balun Designs 5KW 4:1 Balun. This is fed with 22' of Wilson >> LMR400 >> >> Both the K3 internal atu, AND the KPA1500 internal atu get a great match >> on >> 80M, 1.2:1 with no issues. >> >> Honestly, most of the work on 160M is FT8 running 20 watts or less, so >> just >> using the K3 to get a successful match on 160M is fine >> >> I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. >> >> Any ideas here fellers? >> >> thanks and 73 >> >> 73 and GL OM DE w5sum >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to dcarille 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 va3mw at portcredit.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 n4zr at comcast.net Tue Sep 1 14:22:17 2020 From: n4zr at comcast.net (N4ZR) Date: Tue, 1 Sep 2020 14:22:17 -0400 Subject: [Elecraft] XG3 Level Calibration Message-ID: <87338161-acf5-7c76-bb2d-c19ebb156568@comcast.net> Put a brand new Duracell in my XG3, and the output level as measured on HPSDR actually went down a dB, so I guess my question is still unanswered - is there any way to adjust the output level of an XG3? -- 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 k2vco.vic at gmail.com Tue Sep 1 14:30:32 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Tue, 1 Sep 2020 21:30:32 +0300 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: <3226f03b-38c0-0428-f7fd-a43b29698ea1@gmail.com> 99:1 sounds like the wrong antenna output is selected. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ On 01/09/2020 19:36, w5sum at comcast.net wrote: > This morning I put up a W7FG true ladder line 160M doublet.?? Upon > testing, the K3 internal atu does great, matches at 1.3:1.? But when I > throw the KAP1500 in line, it gets all pissed off, throws up and faults > out.? Says SWR is 99:1 !!! > > The Antenna:? The Apex is at 50'.? It is in a inverted Vee config, with > both ends approx 20' off the ground.?? I'm using 59' of the 600 ohm true > ladder line to a Balun Designs 5KW 4:1 Balun. This is fed with 22' of > Wilson LMR400 > > Both the K3 internal atu, AND the KPA1500 internal atu get a great match > on 80M, 1.2:1?? with no issues. > > Honestly, most of the work on 160M is FT8 running 20 watts or less, so > just using the K3 to get a successful match on 160M is fine > > I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. > > Any ideas here fellers? > > thanks and 73 > > 73 and GL OM DE w5sum From turnbull at net1.ie Tue Sep 1 14:32:19 2020 From: turnbull at net1.ie (turnbull) Date: Tue, 01 Sep 2020 19:32:19 +0100 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: <8506a44b-9204-9208-1b92-54ac61649c23@gmail.com> Message-ID: <5f4e93b5.1c69fb81.20f05.3fae@mx.google.com> Ted, It is not all that simple, though Elecraft will do what they judge best.? ? ?Some of us in other parts of the world also put down deposits at an early date.? ? We in the EU can not take delivery until CE approval is obtained.? ?Unless perhaps some take USA delivery and bring the radio back with us as part of luggage.? ? Of course flying is difficult these days.I am sure Elecraft will endeavour to be as even handed as they can be.? ?Meanwhile we wait anxiously.The world has taken a beating and California in particular.? ? There are Italian radio firms struggling to recover as well.We both or indeed all of us wish the good people in Elecraft the best.? ?They have done well to to get so close to shipping.? ? The Elecraft family all deserve a good Californian wine this weekend.73 Doug EI2CNSent from my Samsung Galaxy smartphone. -------- Original message --------From: Ted Roycraft Date: 01/09/2020 18:17 (GMT+00:00) To: Wayne Burdick , Bj?rn Ekelund Cc: Elecraft Reflector Subject: Re: [Elecraft] [K4] Shipping?? Wayne and Eric,I'm very sorry for all the problems you guys in California are having dealing with multiple problems beyond your control and it is completely understandable why the K4 has been delayed.? I'm sure that no one wants them shipping more than you do..Anyway, I am writing you to ask you if you could do something like you did when the K2 had many orders that you had to fill on a first come/first served basis.? Back then, every day you shipped, you posted the order date of the last K2 to go out the door that day. Could you do something similar with the K4?? In this case, initially for Group 1, publish the "deposit date" made by the buyer of the last K4 to go out the door that day.? I'm sure with the K2, that policy eliminated a lot of emails asking "how close am I to getting my K2".? And, contrary to the opinion of some of us, I think this policy would cut way down on the unnecessary emails coming to this mailing list asking "when am I getting my K4".Best regards,Ted Roycraft, W2ZKOn 9/1/2020 12:47, Wayne Burdick wrote:> Hi Bj?rn,>> The programmer's reference is mostly complete, but I still have to separate out internal vs. public commands. That was the plan, right up until the the fires :-/>> Are you already on our developer's list? We'll be posting the programmer's reference to this list as soon as it's ready.>> 73,> Wayne> N6KR>>>> On Sep 1, 2020, at 9:29 AM, Bj?rn Ekelund wrote:>>>> Hi Wayne,>>>> Since you are now shipping; When can we expect the K4 programmer's manual to be available for download?>>>> We want to make sure the DXLog (www.dxlog.net) contest logger supports K4 as soon as possible.>>>> I emailed you a few months ago but I guess that was too early.>>>> Bj?rn SM7IUN>>>> Den tis 1 sep. 2020 kl 18:20 skrev Wayne Burdick :>> A small batch is in process to go out this week, and I'm sure Eric will post an update.>>>> So how about a weather report?>>>> This past few weeks has been very difficult for California and the Bay Area in particular. No one could have anticipated this at the beginning of the month (remember the Ham Expo?), since fire season is usually in October. But worst-case conditions have been brewing for some time. Thanks to drought and record temperatures everything has become tinder-dry (10 years ago we'd get a few winter days in the 30F range, now the lowest we ever see is 40F). Bark beetle larvae are no longer culled during winter, turning trees into an insect sm?rg?sbord. This has left forests all over the West vulnerable.>>>> We had employees evacuated due to fires burning in or near the factory, and many of us elsewhere were on official alert status, thinking about what to pack. During this time the air quality has been horrendous (AQI over 200 some days). This has temporarily upended our strategy of keeping all the doors open to provide safe working conditions in the midst of the ongoing pandemic (remember that?) meaning virtually everyone is working from home. My family had to buy N95 masks just to be able to run errands. We still need them about 50% of the time, though the firefighters are making progress.>>>> In related news, one of our local field testers lost pretty much everything he owned, including his K4, due to one fire's unprecedented rampage through our coastal forests.>>>> And still we persist.>>>> All I can say, in the humbling face of nature, is...QRX.>>>> 73,>> Wayne>> N6KR>>>>>>>>> On Sep 1, 2020, at 4:29 AM, Nr4c wrote:>>>>>> But well after closing for any of their regular shippers!>>>>>> Sent from my iPhone>>> ...nr4c. bill>>>>>>>>>> On Sep 1, 2020, at 12:55 AM, Macy monkeys wrote:>>>>>>>> ?>>>> It's not midnight yet on the west coast :)>>>>>>>> John K7FD>>>>>> ______________________________________________________________>> Elecraft mailing list>> Home: http://mailman.qth.net/mailman/listinfo/elecraft>> Help: http://mailman.qth.net/mmfaq.htm>> Post: mailto:Elecraft at mailman.qth.net>>>> This list hosted by: http://www.qsl.net>> Please help support this email list: http://www.qsl.net/donate.html>> Message delivered to bjorn at ekelund.nu> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft at mailman.qth.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 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 turnbull at net1.ie From w2kj at bellsouth.net Tue Sep 1 17:11:57 2020 From: w2kj at bellsouth.net (Joseph Trombino, Jr) Date: Tue, 1 Sep 2020 17:11:57 -0400 Subject: [Elecraft] K4 shipping References: <04D2358A-6683-4E49-808C-13EE455D65BF.ref@bellsouth.net> Message-ID: <04D2358A-6683-4E49-808C-13EE455D65BF@bellsouth.net> Howdy Gang. Just saw a note from Wayne (on another subject) indicating that a small number of K4?s will ship this week. Has Elecraft officially said that K4 shipping is beginning this week? If so, could some kind soul send me a copy of the email. Many thanks for any assistance. Stay safe and healthy. 73, Joe W2KJ I QRP, therefore I am From donwilh at embarqmail.com Tue Sep 1 18:04:06 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 1 Sep 2020 18:04:06 -0400 Subject: [Elecraft] K4 shipping In-Reply-To: <04D2358A-6683-4E49-808C-13EE455D65BF@bellsouth.net> References: <04D2358A-6683-4E49-808C-13EE455D65BF.ref@bellsouth.net> <04D2358A-6683-4E49-808C-13EE455D65BF@bellsouth.net> Message-ID: <7638205d-5261-8164-bf04-9d7dc0244aa3@embarqmail.com> Joe, You cannot get more official than what Wayne says. 73, Don W3FPR On 9/1/2020 5:11 PM, Joseph Trombino, Jr wrote: > Howdy Gang. > > Just saw a note from Wayne (on another subject) indicating that a small number of K4?s will ship this week. > > Has Elecraft officially said that K4 shipping is beginning this week? If so, could some kind soul send me a copy of the email. > From 99sunset at gmail.com Tue Sep 1 18:24:40 2020 From: 99sunset at gmail.com (Steve Hall) Date: Tue, 1 Sep 2020 18:24:40 -0400 Subject: [Elecraft] my KPA1500 and 160M Message-ID: Sounds like the KPA1500 is seeing more SWR than it likes. My K3 is able to match antennas faster and better than my KAT500. I have had a number of antennas very similar to yours and spent many hours experimenting with feedline length. The length of the open like has a direct effect on the antenna system impedance. Try varying your open line length about 10 feet and with an antenna analyser measure the difference in SWR curves before and after. Additionally I find a 1:1 current balun provides a better match than a 4:1. From rick.nk7i at gmail.com Tue Sep 1 19:27:56 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Tue, 1 Sep 2020 16:27:56 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: Message-ID: If you model it accurately, you see that a 4:1 transformer will cause most (other than 160M) to have a closer match; while on a few the 1:1 device will work better. If convenient, try each. They each offer (dis)advantages. Rick NK7I Email spiel Czech corruptions happen > On Sep 1, 2020, at 3:26 PM, Steve Hall <99sunset at gmail.com> wrote: > > ? Additionally I find a 1:1 current balun > provides a better match than a 4:1. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w5rg at yahoo.com Tue Sep 1 22:08:24 2020 From: w5rg at yahoo.com (Bob Gibson) Date: Wed, 2 Sep 2020 02:08:24 +0000 (UTC) Subject: [Elecraft] F/S K3 References: <125050585.1373571.1599012504943.ref@mail.yahoo.com> Message-ID: <125050585.1373571.1599012504943@mail.yahoo.com> I have my k3 up for sale..#1440 was sent in Jan 2019 for all updates..100watt..ATU..dual rvcr new KSYN3A/DVR/USB/FM AM 2.8 400 in main..2.7 500 in sub..KXV3B-F/KIO3B/ Asking $1500.00 shipped.. ?? 73s Bob W5RG From n1rm at arrl.net Wed Sep 2 00:48:57 2020 From: n1rm at arrl.net (Rick Miller - N1RM) Date: Tue, 1 Sep 2020 21:48:57 -0700 (MST) Subject: [Elecraft] [K4] Re: K4 shipping In-Reply-To: <04D2358A-6683-4E49-808C-13EE455D65BF@bellsouth.net> References: <04D2358A-6683-4E49-808C-13EE455D65BF@bellsouth.net> Message-ID: <1599022137763-0.post@n2.nabble.com> Even Popes have to wait for works of art: https://www.youtube.com/watch?v=xPJzhocW7vw I'm getting excited, too, but I'm already having flashbacks to "shipping status email fatigue" from when I got my K3! 73, be safe, have fun! Rick N1RM -- Sent from: http://elecraft.365791.n2.nabble.com/ From jim at audiosystemsgroup.com Wed Sep 2 00:59:59 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 1 Sep 2020 21:59:59 -0700 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> Message-ID: <97ab6d88-0480-23c7-a5d7-3c9c7bcbff88@audiosystemsgroup.com> On 9/1/2020 9:11 AM, Wayne Burdick wrote: > In related news, one of our local field testers lost pretty much everything he owned, including his K4, due to one fire's unprecedented rampage through our coastal forests. Many our neighbors lost everything, four hams that I know of, including Elecraft production engineer and major contester K6XX. More that 1200 structures were destroyed in our neighborhood alone, most were homes. My wife and I are lucky -- we still have a home. Won't know until we get home (5-7 days) about the antenna farm. 73, Jim K9YC From hs0zed at gmail.com Wed Sep 2 01:30:16 2020 From: hs0zed at gmail.com (Martin Sole) Date: Wed, 2 Sep 2020 08:30:16 +0300 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: <97ab6d88-0480-23c7-a5d7-3c9c7bcbff88@audiosystemsgroup.com> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> <97ab6d88-0480-23c7-a5d7-3c9c7bcbff88@audiosystemsgroup.com> Message-ID: <29f4b39e-93f1-5e09-5d91-1d52e7367230@gmail.com> Thoughts with all you guys who have suffered losses. Truly terrible news. I just saw on my twitter feed a post from Elecraft showing a picture of 3 K4's on the bench going through testing. I guess next step will be out the door. Someone's getting lucky! Martin, HS0ZED On 2/9/63 07:59, Jim Brown wrote: > On 9/1/2020 9:11 AM, Wayne Burdick wrote: >> In related news, one of our local field testers lost pretty much >> everything he owned, including his K4, due to one fire's >> unprecedented rampage through our coastal forests. > > Many our neighbors lost everything, four hams that I know of, > including Elecraft production engineer and major contester K6XX. More > that 1200 structures were destroyed in our neighborhood alone, most > were homes. > > My wife and I are lucky -- we still have a home. Won't know until we > get home (5-7 days) about the antenna farm. > > 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 hs0zed at gmail.com From d.cutter at ntlworld.com Wed Sep 2 06:18:56 2020 From: d.cutter at ntlworld.com (CUTTER DAVID) Date: Wed, 2 Sep 2020 11:18:56 +0100 (BST) Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: Message-ID: <1252236947.382222.1599041936175@mail2.virginmedia.com> Perhaps it's more to do with the common mode impedance that these transformers/choke present. Is the 4:1 a true Guanella or a Ruthroff or ? David G3UNA > On 02 September 2020 at 00:27 Rick NK7I wrote: > > > If you model it accurately, you see that a 4:1 transformer will cause most (other than 160M) to have a closer match; while on a few the 1:1 device will work better. > > If convenient, try each. They each offer (dis)advantages. > > Rick NK7I > > Email spiel Czech corruptions happen > > > On Sep 1, 2020, at 3:26 PM, Steve Hall <99sunset at gmail.com> wrote: > > > > ? Additionally I find a 1:1 current balun > > provides a better match than a 4:1. > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 d.cutter at ntlworld.com From n4zr at comcast.net Wed Sep 2 08:05:15 2020 From: n4zr at comcast.net (N4ZR) Date: Wed, 2 Sep 2020 08:05:15 -0400 Subject: [Elecraft] K4 Shipping? Message-ID: <5824bdfe-ab1e-068c-3711-c3a5e3356af7@comcast.net> Not to be a curmudgeon, but don't you suppose they built at least this many for testers? -- 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 k9yeq at live.com Wed Sep 2 08:12:45 2020 From: k9yeq at live.com (Bill Johnson) Date: Wed, 2 Sep 2020 12:12:45 +0000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: I would agree that the coil could overheat. The model number is left out. The Balun Design coil chosen may not be satisfactory for your power despite the 5KW rating. Which Balun are you using? Bill K9YEQ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert Sent: Tuesday, September 1, 2020 12:28 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] my KPA1500 and 160M One distinct possibility is that the 4:1 balun is getting hot at 1500 watts.? Have you tried running the KPA1500 at a lower power? 73, Dave? AB7E On 9/1/2020 9:36 AM, w5sum at comcast.net wrote: > This morning I put up a W7FG true ladder line 160M doublet.?? Upon > testing, the K3 internal atu does great, matches at 1.3:1.? But when I > throw the KAP1500 in line, it gets all pissed off, throws up and > faults out.? Says SWR is 99:1 !!! > > The Antenna:? The Apex is at 50'.? It is in a inverted Vee config, > with both ends approx 20' off the ground.?? I'm using 59' of the 600 > ohm true ladder line to a Balun Designs 5KW 4:1 Balun. This is fed > with 22' of Wilson LMR400 > > Both the K3 internal atu, AND the KPA1500 internal atu get a great > match on 80M, 1.2:1?? with no issues. > > Honestly, most of the work on 160M is FT8 running 20 watts or less, so > just using the K3 to get a successful match on 160M is fine > > I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. > > Any ideas here fellers? > > thanks and 73 > > 73 and GL OM DE w5sum ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k9yeq at live.com From w5rg at yahoo.com Wed Sep 2 08:18:10 2020 From: w5rg at yahoo.com (Bob Gibson) Date: Wed, 2 Sep 2020 12:18:10 +0000 (UTC) Subject: [Elecraft] K3 HAS BEEN SOLD References: <1172852057.1480965.1599049090262.ref@mail.yahoo.com> Message-ID: <1172852057.1480965.1599049090262@mail.yahoo.com> Thanks From g0ruz at g0ruz.com Wed Sep 2 09:07:38 2020 From: g0ruz at g0ruz.com (Conrad PA5Y) Date: Wed, 2 Sep 2020 13:07:38 +0000 Subject: [Elecraft] 2 different 144MHz transveters and CAT selection In-Reply-To: <1172852057.1480965.1599049090262@mail.yahoo.com> References: <1172852057.1480965.1599049090262.ref@mail.yahoo.com>, <1172852057.1480965.1599049090262@mail.yahoo.com> Message-ID: I have an unusual situation in that I have 2 different 2m transverters attached to my K3S. One system is a dual channel ME2T-XP and uses the SUB RX, this is only used for EME and it designated XV1. The second is used on tropo/terrestrial DX and contests and is an ME2T-ProII, this is XV2. If I use WSJT-X and use CAT I have a problem in that a CAT selection for 144MHz always chooses XV1 which is not what I want at all most of the time. There are gain and LO offset configurations that mean that using a switch in the IF is not ideal. Currently my solution is to set the RF frequency for XV1 to 70 MHz temporarily which always confuses me when I want to go on 2m EME. What would be ideal would be some way of setting the CAT XV priority from the front panel. I think that this must be a firmware update, its an easy one but of course would be low down the list. Something of a luxury problem I know. Maybe there is another way or something that I did not think of? Regards Conrad PA5Y From vk4tux at gmail.com Wed Sep 2 09:07:39 2020 From: vk4tux at gmail.com (Adrian) Date: Wed, 2 Sep 2020 23:07:39 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: Overheat is a situation taking time, and usually starts with a good match, then deteriorating. In this case ; "But when I throw the KAP1500 in line, it gets all pissed off, throws up and faults out.? Says SWR is 99:1 !!!" indicating an instant issue while the balun is still stone cold... The 5kw balun is not the best for your situation, but rather the 4116 3KW hybrid https://www.balundesigns.com/model-4116-4-1-hybrid-balun-1-5-54mhz-3kw/ See ; https://www.balundesigns.com/blog/baluns-for-multiband-antennas-fed-with-open-wire-or-ladder-line/ 73 Adrian Fewster On 2/9/20 10:12 pm, Bill Johnson wrote: > I would agree that the coil could overheat. The model number is left out. The Balun Design coil chosen may not be satisfactory for your power despite the 5KW rating. Which Balun are you using? > > Bill > K9YEQ > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert > Sent: Tuesday, September 1, 2020 12:28 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] my KPA1500 and 160M > > > One distinct possibility is that the 4:1 balun is getting hot at 1500 watts.? Have you tried running the KPA1500 at a lower power? > > 73, > Dave? AB7E > > From w4sc at windstream.net Wed Sep 2 11:09:19 2020 From: w4sc at windstream.net (w4sc) Date: Wed, 2 Sep 2020 11:09:19 -0400 Subject: [Elecraft] 2 different 144MHz transveters and CAT selection Message-ID: <03.C2.32603.F95BF4F5@smtp03.aqua.bos.sync.lan> Why not use the command ?BN $? ?? This is a GET/SEL command, and has VFO select options. Reference Programmers manual. ?BN 16? selects XVERTER 1 ?BN 17? selects XVERTER 2 73 de Ben W4SC Sent from Mail for Windows 10 From tem14me at usa.net Wed Sep 2 13:25:04 2020 From: tem14me at usa.net (Kurt Holbrook) Date: Wed, 2 Sep 2020 11:25:04 -0600 Subject: [Elecraft] K3s Internal noise on 160 meters Message-ID: <005a01d6814d$ff578900$fe069b00$@usa.net> Good Morning, I'm experiencing internal noise on my K3s. It is not quite 1 year old. I have disconnected everything from the radio and operating off of a battery and the problem is still there. The preamp is off. It doesn't matter if antenna one or two is selected but if the rx antenna is selected the noise goes away. The rx antenna is connected to the bnc. The noise sounds buzzy if that makes any sense and is gone by the time I tune up to the bottom of 80 meters. Any help/ advice is greatly appreciated. Regards, Kurt Holbrook, KU7RT From ab7echo at gmail.com Wed Sep 2 13:25:34 2020 From: ab7echo at gmail.com (David Gilbert) Date: Wed, 2 Sep 2020 10:25:34 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> More likely that the ferrite core is getting hot from excessive VSWR.? High current could, but rarely does, heat up the coil, but it's high voltage which often heats up the core.? At low power (and therefore low VSWR voltage) it wouldn't necessarily be a problem, but at high power it easily could.? I know this from personal experience with a 160m Inverted-L that initially had a high VSWR that with high power heated up a MUCH better common mode choke (homebrew per K9YC guidelines) than the Balun Designs stuff. 73, Dave?? AB7E On 9/2/2020 5:12 AM, Bill Johnson wrote: > I would agree that the coil could overheat. The model number is left out. The Balun Design coil chosen may not be satisfactory for your power despite the 5KW rating. Which Balun are you using? > > Bill > K9YEQ > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert > Sent: Tuesday, September 1, 2020 12:28 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] my KPA1500 and 160M > > > One distinct possibility is that the 4:1 balun is getting hot at 1500 watts.? Have you tried running the KPA1500 at a lower power? > > 73, > Dave? AB7E > > > > On 9/1/2020 9:36 AM, w5sum at comcast.net wrote: >> This morning I put up a W7FG true ladder line 160M doublet.?? Upon >> testing, the K3 internal atu does great, matches at 1.3:1.? But when I >> throw the KAP1500 in line, it gets all pissed off, throws up and >> faults out.? Says SWR is 99:1 !!! >> >> The Antenna:? The Apex is at 50'.? It is in a inverted Vee config, >> with both ends approx 20' off the ground.?? I'm using 59' of the 600 >> ohm true ladder line to a Balun Designs 5KW 4:1 Balun. This is fed >> with 22' of Wilson LMR400 >> >> Both the K3 internal atu, AND the KPA1500 internal atu get a great >> match on 80M, 1.2:1?? with no issues. >> >> Honestly, most of the work on 160M is FT8 running 20 watts or less, so >> just using the K3 to get a successful match on 160M is fine >> >> I just wonder why the KAP1500 doesn't like the same antenna the K3 likes. >> >> Any ideas here fellers? >> >> thanks and 73 >> >> 73 and GL OM DE w5sum > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to k9yeq at live.com From ab7echo at gmail.com Wed Sep 2 13:36:56 2020 From: ab7echo at gmail.com (David Gilbert) Date: Wed, 2 Sep 2020 10:36:56 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> Message-ID: <65bcf2c8-c787-5f4f-f10b-c10b3605b56d@gmail.com> No ... overheating doesn't take much time at all. As I stated in my reply to Bill, high power and high VSWR will indeed heat up a ferrite core device ... balun or common mode choke ... and it can do so quite quickly.? In my case, I had a 160m Inverted-L that I put up rather hastily for a contest and I didn't trim it for best match.? At 100 watts it worked fine because I could tune it at the shack, but at anything above 1,000 watts the ferrite core in the common mode choke would heat up and fault the amplifier (QRO Technologies HF-2500DX tube amp) in less than two seconds. This happened repeatedly, and when I got serious and fixed the antenna for a lower VSWR everything was stable even at 1500 watts and even with the same choke that I luckily hadn't permanently destroyed (although I suspect the core had been compromised for original choking performance). High VSWR is very tough on ferrite cores. Dave?? AB7E On 9/2/2020 6:07 AM, Adrian wrote: > Overheat is a situation taking time, and usually starts with a good > match, then deteriorating. > > In this case ; "But when I throw the KAP1500 in line, it gets all > pissed off, throws up and faults out.? Says SWR is 99:1 !!!" > > indicating an instant issue while the balun is still stone cold... > > The 5kw balun is not the best for your situation, but rather the 4116 > 3KW hybrid > > https://www.balundesigns.com/model-4116-4-1-hybrid-balun-1-5-54mhz-3kw/ > > See ; > https://www.balundesigns.com/blog/baluns-for-multiband-antennas-fed-with-open-wire-or-ladder-line/ > > 73 > > > Adrian Fewster > > > > > > On 2/9/20 10:12 pm, Bill Johnson wrote: >> I would agree that the coil could overheat.? The model number is left >> out.? The Balun Design coil chosen may not be satisfactory for your >> power despite the 5KW rating.? Which Balun are you using? >> >> Bill >> K9YEQ >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of David Gilbert >> Sent: Tuesday, September 1, 2020 12:28 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] my KPA1500 and 160M >> >> >> One distinct possibility is that the 4:1 balun is getting hot at 1500 >> watts.? Have you tried running the KPA1500 at a lower power? >> >> 73, >> Dave? AB7E >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ab7echo at gmail.com From nr4c at widomaker.com Wed Sep 2 14:19:39 2020 From: nr4c at widomaker.com (Nr4c) Date: Wed, 2 Sep 2020 14:19:39 -0400 Subject: [Elecraft] K4 Shipping? In-Reply-To: <5824bdfe-ab1e-068c-3711-c3a5e3356af7@comcast.net> References: <5824bdfe-ab1e-068c-3711-c3a5e3356af7@comcast.net> Message-ID: <356F7D04-F48C-43A4-AE2D-FA7D7F2AF5E2@widomaker.com> I think they built 20-25 for Field Testors for the KX3. Sent from my iPhone ...nr4c. bill > On Sep 2, 2020, at 8:22 AM, N4ZR wrote: > > ?Not to be a curmudgeon, but don't you suppose they built at least this many for testers? > > -- > 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 nr4c at widomaker.com From w0agmike at gmail.com Wed Sep 2 14:35:26 2020 From: w0agmike at gmail.com (Mike Murray) Date: Wed, 2 Sep 2020 13:35:26 -0500 Subject: [Elecraft] K3 FS - Reduced! Message-ID: *Now reduced to move - $1,050 + shipping!* Working on downsizing and selling my K3. $1,650 plus shipping. Prefer pickup but could meet within 100 miles. K3/100-F 1 K3 100W Xcvr. (Factory assembled) Serial #3746 KAT3-F 1 K3 ATU KXV3A 1 K3 RX Ant, IF Out & Xvrtr Int KRX3 1 K3 2nd RX KFL3A-400 1 K3 400 Hz, 8 pole filter (Main RX) KFL3A-2.8K 2 K3 2.8 kHz, 8 pole filter (Main/Sub RX) "Y-Box" by N6TV 15 pin parallel DE15 splitter and breakout box 73, Mike - W0AG From jim at audiosystemsgroup.com Wed Sep 2 14:51:17 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 2 Sep 2020 11:51:17 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <65bcf2c8-c787-5f4f-f10b-c10b3605b56d@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <65bcf2c8-c787-5f4f-f10b-c10b3605b56d@gmail.com> Message-ID: <07d067c3-502b-abe9-81fd-873b5fa9c87f@audiosystemsgroup.com> On 9/2/2020 10:36 AM, David Gilbert wrote: > High VSWR is very tough on ferrite cores. Yes. My Choke Cookbook is for matched loads at the point of insertion, and the first place for a choke should ALWAYS be at the feedpoint. There should be one of these chokes (NOT Balun Designs or Palomar) aty the feedpoint of EVERY antenna. http://k9yc.com/2018Cookbook.pdf Fundamental concepts in k9yc.com/RFI-Ham.pdf This material was added to the ARRL Handbook and/or Antenna Book around 2010, and the Cookbook updated with the most recent version of each book. 73, Jim K9YC From g3wie at crystalhobs.org.uk Wed Sep 2 15:25:13 2020 From: g3wie at crystalhobs.org.uk (G3WIE) Date: Wed, 2 Sep 2020 12:25:13 -0700 (MST) Subject: [Elecraft] [K2] Spurious emission in SSB In-Reply-To: <706245043.754775.1598877113491@mail.yahoo.com> References: <1598807258219-0.post@n2.nabble.com> <706245043.754775.1598877113491@mail.yahoo.com> Message-ID: <1599074713971-0.post@n2.nabble.com> Thanks to those who replied to my post. I've now reached the point where the level of the spurious tone is low enough. Here's what I did. Following Don's suggestion I isolated the KSSB2 speech processor from the balanced modulator by removing C20 and grounding the free end of R2 via a 100nF capacitor. Unfortunately the spurious was unchanged; a problem in the speech processor could have relatively easy to fix. I followed up on Steve's suggestion with some careful measurements on the spacing between spurious tone and K2 carrier in LSB and USB compared with the difference in BFO frequency for the two. This confirmed that the 4MHz oscillator in the PIC U1 was coupling into the KSB2 output. Some years ago I had made a modification to the KSB2 between D2 and Q2 to reduce the peak SSB amplitude so it matched the Tune level. I reverted to the published circuit and the level of the spurious dropped to about -45dB ref the SSB output which suggested that this signal path is sensitive to pickup. Next I moved C31, C40 and C43 from the top to the bottom of the PCB and constructed a 1/2" high screen connected to their Gnd pads to shield the PIC, the resonator and U2 from the o/p circuits (D1 ... Q2). It made a marginal improvement, not really worthwhile but I shan't undo it Next I increased the output to 2 watts. The spurious tone's amplitude is not affected by the power setting so this should win me 3dB. I also lifted the base of Q2 off the PCB and joined it to D2 and R8 with a piece of wire 1/16" off the top of the PCB. That way the PCB track that connects to Q2's base is no longer used in case it's picking up the 4MHz. Finally I retuned the 28MHz BPF higher in frequency to try and move the spurious tone towards the filter stopband. The spurious is now 50dB below the SSB output and I can't see how to make any further improvement. There are other spurious outputs at that level so there's little to be gained in any case. I don't believe I have found the main mechanism for the coupling but as they say "sometimes good is good enough" 73 Chris G3WIE -- Sent from: http://elecraft.365791.n2.nabble.com/ From idarack at gmail.com Wed Sep 2 15:28:19 2020 From: idarack at gmail.com (Irwin Darack) Date: Wed, 2 Sep 2020 15:28:19 -0400 Subject: [Elecraft] Elecraft K3s Second Receiver for sale Message-ID: I have an Elecraft K3s KRX3A, Second Receiver for Sale. It contains the - Installed in the Sub Receiver are the KRX3A Main Circuit Board, Mixer Board, KNB3 Board & KFL3A-2.7 Filter - KSYN3A Synthesizer - Auxiliary DSP Circuit Board - Sub In Board - Sub Out Board I do not have the TMP Cable with the BNC Connector. This can be ordered from Elecraft (E850344 TMP-BNC Cable Bag). Asking $700 which includes free shipping to CON USA. Please contact me off the reflector at IDarack(at)gmail.com -- Irwin KD3TB From idarack at gmail.com Wed Sep 2 15:55:16 2020 From: idarack at gmail.com (Irwin Darack) Date: Wed, 2 Sep 2020 15:55:16 -0400 Subject: [Elecraft] Elecraft K3s Second Receiver for sale In-Reply-To: References: Message-ID: I forgot to add that I have the Sub Receiver Installation Manual Irwin KD3TB On Wed, Sep 2, 2020 at 3:28 PM Irwin Darack wrote: > I have an Elecraft K3s KRX3A, Second Receiver for Sale. > > It contains the > > - Installed in the Sub Receiver are the KRX3A Main Circuit Board, > Mixer Board, KNB3 Board & KFL3A-2.7 Filter > - KSYN3A Synthesizer > - Auxiliary DSP Circuit Board > - Sub In Board > - Sub Out Board > > I do not have the TMP Cable with the BNC Connector. This can be ordered > from Elecraft (E850344 TMP-BNC Cable Bag). > > Asking $700 which includes free shipping to CON USA. > > Please contact me off the reflector at IDarack(at)gmail.com > > -- > Irwin KD3TB > -- Irwin KD3TB From kp3mm.dx at gmail.com Wed Sep 2 17:41:30 2020 From: kp3mm.dx at gmail.com (Ken Ramirez de Arellano) Date: Wed, 2 Sep 2020 17:41:30 -0400 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m Message-ID: Every bit of antenna hardware ( coax, balun, insulators, etc. have been changed out or proven good. Connections are all solid. My KPA1500 will transmit above 800 watts for about 15-30 seconds and then the SWR jumps up and it faults out for high VSWR. I can run 1500 watts on all the other ?Legacy? bands (10,15,20,40,80) with no problems. I?ve forced an STU relearn and still the same issue. The antenna B amp is a Clipperton L and that transmits at a KW out and I see no change in VSWR in the external wattmeter using all of the same cabling. It?s starting to look like something heating up in the KPA1500. Is anyone aware of a known issue for this with the KPA1500 or a known fix? I would rather do a field repair instead of sending to Elecraft from KP4. TIA Ken, KP3MM -- Ken Ramirez KP3MM From donnieput at gmail.com Wed Sep 2 18:00:01 2020 From: donnieput at gmail.com (Don Putnick) Date: Wed, 2 Sep 2020 15:00:01 -0700 Subject: [Elecraft] [K3] K3 Utility hiccup Message-ID: When I use the K3 Utility Terminal tab to send CW via one of the macros (Utility macro, not K3 macro), occasionally the macro quits part way through. Any ideas as to what's going on? It's a really simple macro: TU DON CWA Configuration: K3 with latest firmware, MacBook Pro with latest version of Catalina, K3 Utility latest version, new interface cable from Elecraft. 73 Don NA6Z From k9yeq at live.com Wed Sep 2 18:05:28 2020 From: k9yeq at live.com (Bill Johnson) Date: Wed, 2 Sep 2020 22:05:28 +0000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <65bcf2c8-c787-5f4f-f10b-c10b3605b56d@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <65bcf2c8-c787-5f4f-f10b-c10b3605b56d@gmail.com> Message-ID: Dave, Exactly my point. Doesn't take long to cause the core to go south. High voltage is fast. 73, Bill K9YEQ -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert Sent: Wednesday, September 2, 2020 12:37 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] my KPA1500 and 160M No ... overheating doesn't take much time at all. As I stated in my reply to Bill, high power and high VSWR will indeed heat up a ferrite core device ... balun or common mode choke ... and it can do so quite quickly.? In my case, I had a 160m Inverted-L that I put up rather hastily for a contest and I didn't trim it for best match.? At 100 watts it worked fine because I could tune it at the shack, but at anything above 1,000 watts the ferrite core in the common mode choke would heat up and fault the amplifier (QRO Technologies HF-2500DX tube amp) in less than two seconds. This happened repeatedly, and when I got serious and fixed the antenna for a lower VSWR everything was stable even at 1500 watts and even with the same choke that I luckily hadn't permanently destroyed (although I suspect the core had been compromised for original choking performance). High VSWR is very tough on ferrite cores. Dave?? AB7E On 9/2/2020 6:07 AM, Adrian wrote: > Overheat is a situation taking time, and usually starts with a good > match, then deteriorating. > > In this case ; "But when I throw the KAP1500 in line, it gets all > pissed off, throws up and faults out.? Says SWR is 99:1 !!!" > > indicating an instant issue while the balun is still stone cold... > > The 5kw balun is not the best for your situation, but rather the 4116 > 3KW hybrid > > https://www.balundesigns.com/model-4116-4-1-hybrid-balun-1-5-54mhz-3kw > / > > See ; > https://www.balundesigns.com/blog/baluns-for-multiband-antennas-fed-wi > th-open-wire-or-ladder-line/ > > 73 > > > Adrian Fewster > > > > > > On 2/9/20 10:12 pm, Bill Johnson wrote: >> I would agree that the coil could overheat.? The model number is left >> out.? The Balun Design coil chosen may not be satisfactory for your >> power despite the 5KW rating.? Which Balun are you using? >> >> Bill >> K9YEQ >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> On Behalf Of David Gilbert >> Sent: Tuesday, September 1, 2020 12:28 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] my KPA1500 and 160M >> >> >> One distinct possibility is that the 4:1 balun is getting hot at 1500 >> watts.? Have you tried running the KPA1500 at a lower power? >> >> 73, >> Dave? AB7E >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > ab7echo at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k9yeq at live.com From k9yeq at live.com Wed Sep 2 18:06:56 2020 From: k9yeq at live.com (Bill Johnson) Date: Wed, 2 Sep 2020 22:06:56 +0000 Subject: [Elecraft] K4 Shipping? In-Reply-To: <356F7D04-F48C-43A4-AE2D-FA7D7F2AF5E2@widomaker.com> References: <5824bdfe-ab1e-068c-3711-c3a5e3356af7@comcast.net> <356F7D04-F48C-43A4-AE2D-FA7D7F2AF5E2@widomaker.com> Message-ID: I was #12 for the KX3. It was a field test. They do more in house now rather for more technical engineering feedback, I would guess. 72 & 73, Bill K9YEQ FT?er for K2, KX1, KX3, KXPA100, KAT500, W2, etc. -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c Sent: Wednesday, September 2, 2020 1:20 PM To: N4ZR Cc: Elecraft List Subject: Re: [Elecraft] K4 Shipping? I think they built 20-25 for Field Testors for the KX3. Sent from my iPhone ...nr4c. bill > On Sep 2, 2020, at 8:22 AM, N4ZR wrote: > > ?Not to be a curmudgeon, but don't you suppose they built at least this many for testers? > > -- > 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 > 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 k9yeq at live.com From dflem at yahoo.com Wed Sep 2 18:21:02 2020 From: dflem at yahoo.com (David Fleming) Date: Wed, 2 Sep 2020 22:21:02 +0000 (UTC) Subject: [Elecraft] [K3] K3 Utility hiccup In-Reply-To: References: Message-ID: <264628178.1738985.1599085262460@mail.yahoo.com> Hi Don, I just tried the same Macro (TU DON CWA) and sent it a few dozen times and it completes each time with no problem. Have you tried re-entering the Macro in another Macro slot. Can you describe what happens when it stalls? Does the displayed text in the text fields complete? David, W4SMT On Wednesday, September 2, 2020, 06:02:19 PM EDT, Don Putnick wrote: When I use the K3 Utility Terminal tab to send CW via one of the macros (Utility macro, not K3 macro), occasionally the macro quits part way through. Any ideas as to what's going on? It's a really simple macro: TU DON CWA Configuration: K3 with latest firmware, MacBook Pro with latest version of Catalina, K3 Utility latest version, new interface cable from Elecraft. 73 Don NA6Z From edauer at law.du.edu Wed Sep 2 18:39:44 2020 From: edauer at law.du.edu (Dauer, Edward) Date: Wed, 2 Sep 2020 22:39:44 +0000 Subject: [Elecraft] K4 shipping Message-ID: Have the firm prices been set yet? I looked but didn't see them on the web site. (Yeah, I know, "If you have to ask the price . . .") Ted, KN1CBR From ab7echo at gmail.com Wed Sep 2 18:44:04 2020 From: ab7echo at gmail.com (David Gilbert) Date: Wed, 2 Sep 2020 15:44:04 -0700 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: References: Message-ID: <04f76fcf-309f-90f6-72cf-c30f2ec76ca6@gmail.com> If your Clipperton amp doesn't have the same problem then it does indeed point to the KPA1500. I don't own a KPA1500, but a quick look at the online manual shows that the tuning unit is an L-Network.? Depending upon the load the unit is trying to match, an L-Network can require a very large amount of capacitance, especially on 160m ... which I suspect is achieved in the KPA1500 by switching in high power ceramic units for 160m.? I had to replace a couple of high power ceramic doorknob capacitors for 160m in my own tube amp because I had degraded them with a high VSWR per my earlier post about an overheating common mode choke. Of course you might not have the same problem, but it would be one of the things I'd check. 73, Dave?? AB7E On 9/2/2020 2:41 PM, Ken Ramirez de Arellano wrote: > Every bit of antenna hardware ( coax, balun, insulators, etc. have been > changed out or proven good. Connections are all solid. My KPA1500 will > transmit above 800 watts for about 15-30 seconds and then the SWR jumps up > and it faults out for high VSWR. I can run 1500 watts on all the other > ?Legacy? bands (10,15,20,40,80) with no problems. I?ve forced an STU > relearn and still the same issue. The antenna B amp is a Clipperton L and > that transmits at a KW out and I see no change in VSWR in the external > wattmeter using all of the same cabling. It?s starting to look like > something heating up in the KPA1500. Is anyone aware of a known issue for > this with the KPA1500 or a known fix? I would rather do a field repair > instead of sending to Elecraft from KP4. TIA Ken, KP3MM From vk4tux at gmail.com Wed Sep 2 18:55:59 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 08:55:59 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> Message-ID: The problem is evident on first KPA1500 match attempt before any heating of the balun core is possible. It is not a core heat issue at all. If it was the OP would be able to get an ok initial atu match, that would then deteriorate with core heat..The issue is from the get-go. Also only current in the balun? circuit produces emf and therefore core heat. Voltage is only a factor in how much current flows depending on circuit impedance, Plenty of voltage with no current = no heat. On 3/9/20 3:25 am, David Gilbert wrote: > > More likely that the ferrite core is getting hot from excessive VSWR.? > High current could, but rarely does, heat up the coil, but it's high > voltage which often heats up the core.? At low power (and therefore > low VSWR voltage) it wouldn't necessarily be a problem, but at high > power it easily could.? I know this from personal experience with a > 160m Inverted-L that initially had a high VSWR that with high power > heated up a MUCH better common mode choke (homebrew per K9YC > guidelines) than the Balun Designs stuff. > > 73, > Dave?? AB7E > > > From g4gnx at g4gnx.com Wed Sep 2 19:04:58 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Wed, 02 Sep 2020 23:04:58 +0000 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: References: Message-ID: Ken, sorry this is rather long, but here goes............... I had a similar problem in the UK, with a OSCFD antenna, purchased from a UK company. I didn't question the theory and just assembled it according to instructions. As you would expect the antenna is made from two differing lengths of ruggedised, plastic coated copper wire, which is fed by a 4:1 Guanella balun, rated at 400W. The balun is potted in a weatherproof box and is fed via the customary PL259/SO239 connector with Mil Spec RG58 coaxial cable. About 6' down from the feed point is a common mode choke (sometimes called a sleeve balun) which consists of 8 ferrite inline cores, around the co-ax and held in place with heat shrink sleeving and cable ties. The rig was just the K3S/100W with internal tuner and all was well for many months, mostly using 40 metres SSB. A while later, I added the KPA500/KAT500 combo which I ran for a couple of very short periods at 400W to test. For a weekly net, I used only 200W and all seemed OK for a while, until suddenly the VSWR started to increase over the period of an 'over'. Over a few weeks this got more frequent and I would have to re-tune part way through an 'over'. At that time, I wan't sure whether it was an antenna issue, or the KPA500/KAT500, although I suspected that the KPA500 was getting too hot, so I posted a question on a forum and was contacted by Jack Brindle of Elecraft, who kindly looked at the KPA500 fault reports and sent me a comprehensive explanation of his findings based on the figures and his experience, which concluded that the antenna was almost certainly the culprit. I ordered a new 1KW Guanella balun and some much bigger ferrites, with the intention of replacing the RG58 with Westflex 103. In the meantime I soldiered on with the original setup until one day all hell let loose, with the KPA500 and KAT500 fault lights flashing and even the K3S got 'ticked off'. At this point I switched to my HF vertical, to keep me on the air. When I dismantled the wire antenna, I expected a balun fault, but it was actually OK. On further checking, after disconnecting the co-ax from the balun, the open ended co-ax showed a DC short on a test meter! I used the Rig Expert 600 to determine exactly where the short was and it turned out to be exactly where the sleeve ferrites had been, BUT there was no discoloration of the outer covering, or signs of melting, so I knew it was unlikely that the ferrite cores had got heated. I cut the section out of the co-ax and started to take it apart. With the outer covering all removed, there was still no sign of discoloration of the screen braid, but as I tried to remove the braid, it was obvious that there had been considerable heating as the center section of the braid has melted into the center conductor insulation, and somewhere in there, it has made it right through to the center conductor. Unfortunately I haven't yet found the exact point of the short, because I left the partly dismantled piece of inner co-ax on a table and one of my cats seems to have run off with it! :-D When I eventually find it, I'll continue investigating. In the meantime, one theory is that the common mode choke presented a high impedance to RF coming back down the co-ax and this in turn produced a very high voltage causing an arc between inner and outer and as the characteristics changed, in turn a high current node was created, which caused the heating effect. Another theory is that it is just a crappy piece of cable and it just failed. Unfortunately this is not the sort of fault that can be detected in its development stage by a low power antenna analyser, it needs a fair amount of power. This long tale may just give you some clues to your possible issue on 160m although on a different power scale.. 73, Alan. G4GNX ------ Original Message ------ From: "Ken Ramirez de Arellano" To: elecraft at mailman.qth.net Sent: 02/09/2020 22:41:30 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m >Every bit of antenna hardware ( coax, balun, insulators, etc. have been >changed out or proven good. Connections are all solid. My KPA1500 will >transmit above 800 watts for about 15-30 seconds and then the SWR jumps up >and it faults out for high VSWR. I can run 1500 watts on all the other >?Legacy? bands (10,15,20,40,80) with no problems. I?ve forced an STU >relearn and still the same issue. The antenna B amp is a Clipperton L and >that transmits at a KW out and I see no change in VSWR in the external >wattmeter using all of the same cabling. It?s starting to look like >something heating up in the KPA1500. Is anyone aware of a known issue for >this with the KPA1500 or a known fix? I would rather do a field repair >instead of sending to Elecraft from KP4. TIA Ken, KP3MM >-- >Ken Ramirez >KP3MM > From w5rg at yahoo.com Wed Sep 2 19:08:30 2020 From: w5rg at yahoo.com (Bob Gibson) Date: Wed, 2 Sep 2020 23:08:30 +0000 (UTC) Subject: [Elecraft] W2 WATT METER F/S References: <1499917916.1749805.1599088110870.ref@mail.yahoo.com> Message-ID: <1499917916.1749805.1599088110870@mail.yahoo.com> I have a Elecraft W2 watt meter for sale with the 200 watt coupler for $200.00 ?? 73s Bob W5RG From w5sum at comcast.net Wed Sep 2 19:30:26 2020 From: w5sum at comcast.net (Ronnie Hull) Date: Wed, 2 Sep 2020 18:30:26 -0500 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: References: Message-ID: Update I took the Balun designs 4:1 out of line and put a Dx Engineering maxi core 5kw 4:1 in its place. It tunes a little better on 160 but the KPA1500 finally faults out and says cannot find match and shows 9:1.... better than 99:1 So I put the KPA1500 straight to a 2.5kw bird dummy load and it tunes instantly 1:1 in 160M So this fault is with the antenna for sure The only other Balun I have to try is a DX Engineering 6:1 which I will try in the morning. Failing that I will order a 1:1 feom DX Engineering But at least I know it?s the antenna that is causing this problem I?m going to also borrow a antenna analyzer tomorrow and see what gives. Thanks for all the suggestions! We will whip this yet Ronnie w5sum Sent from my iPhone > On Sep 2, 2020, at 6:05 PM, Alan - G4GNX wrote: > > ?Ken, sorry this is rather long, but here goes............... > > I had a similar problem in the UK, with a OSCFD antenna, purchased from a UK company. I didn't question the theory and just assembled it according to instructions. > > As you would expect the antenna is made from two differing lengths of ruggedised, plastic coated copper wire, which is fed by a 4:1 Guanella balun, rated at 400W. The balun is potted in a weatherproof box and is fed via the customary PL259/SO239 connector with Mil Spec RG58 coaxial cable. About 6' down from the feed point is a common mode choke (sometimes called a sleeve balun) which consists of 8 ferrite inline cores, around the co-ax and held in place with heat shrink sleeving and cable ties. > > The rig was just the K3S/100W with internal tuner and all was well for many months, mostly using 40 metres SSB. A while later, I added the KPA500/KAT500 combo which I ran for a couple of very short periods at 400W to test. For a weekly net, I used only 200W and all seemed OK for a while, until suddenly the VSWR started to increase over the period of an 'over'. Over a few weeks this got more frequent and I would have to re-tune part way through an 'over'. At that time, I wan't sure whether it was an antenna issue, or the KPA500/KAT500, although I suspected that the KPA500 was getting too hot, so I posted a question on a forum and was contacted by Jack Brindle of Elecraft, who kindly looked at the KPA500 fault reports and sent me a comprehensive explanation of his findings based on the figures and his experience, which concluded that the antenna was almost certainly the culprit. > > I ordered a new 1KW Guanella balun and some much bigger ferrites, with the intention of replacing the RG58 with Westflex 103. In the meantime I soldiered on with the original setup until one day all hell let loose, with the KPA500 and KAT500 fault lights flashing and even the K3S got 'ticked off'. At this point I switched to my HF vertical, to keep me on the air. > > When I dismantled the wire antenna, I expected a balun fault, but it was actually OK. On further checking, after disconnecting the co-ax from the balun, the open ended co-ax showed a DC short on a test meter! > > I used the Rig Expert 600 to determine exactly where the short was and it turned out to be exactly where the sleeve ferrites had been, BUT there was no discoloration of the outer covering, or signs of melting, so I knew it was unlikely that the ferrite cores had got heated. I cut the section out of the co-ax and started to take it apart. With the outer covering all removed, there was still no sign of discoloration of the screen braid, but as I tried to remove the braid, it was obvious that there had been considerable heating as the center section of the braid has melted into the center conductor insulation, and somewhere in there, it has made it right through to the center conductor. > > Unfortunately I haven't yet found the exact point of the short, because I left the partly dismantled piece of inner co-ax on a table and one of my cats seems to have run off with it! :-D > When I eventually find it, I'll continue investigating. > > In the meantime, one theory is that the common mode choke presented a high impedance to RF coming back down the co-ax and this in turn produced a very high voltage causing an arc between inner and outer and as the characteristics changed, in turn a high current node was created, which caused the heating effect. Another theory is that it is just a crappy piece of cable and it just failed. > > Unfortunately this is not the sort of fault that can be detected in its development stage by a low power antenna analyser, it needs a fair amount of power. > > This long tale may just give you some clues to your possible issue on 160m although on a different power scale.. > > 73, > > Alan. G4GNX > > > ------ Original Message ------ > From: "Ken Ramirez de Arellano" > To: elecraft at mailman.qth.net > Sent: 02/09/2020 22:41:30 > Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m > >> Every bit of antenna hardware ( coax, balun, insulators, etc. have been >> changed out or proven good. Connections are all solid. My KPA1500 will >> transmit above 800 watts for about 15-30 seconds and then the SWR jumps up >> and it faults out for high VSWR. I can run 1500 watts on all the other >> ?Legacy? bands (10,15,20,40,80) with no problems. I?ve forced an STU >> relearn and still the same issue. The antenna B amp is a Clipperton L and >> that transmits at a KW out and I see no change in VSWR in the external >> wattmeter using all of the same cabling. It?s starting to look like >> something heating up in the KPA1500. Is anyone aware of a known issue for >> this with the KPA1500 or a known fix? I would rather do a field repair >> instead of sending to Elecraft from KP4. TIA Ken, KP3MM >> -- >> Ken Ramirez >> KP3MM >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w5sum at comcast.net From ab7echo at gmail.com Wed Sep 2 19:35:21 2020 From: ab7echo at gmail.com (David Gilbert) Date: Wed, 2 Sep 2020 16:35:21 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> Message-ID: <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> In KP3MM's recent post he reveals that the problem doesn't occur with his Clipperton amp at one KW, so it appears that the problem is indeed within the KPA1500.? But to be clear, he never said that the problem is there from the start.? In his recent message he says that it takes 15 to 30 seconds for the amp to trip. In addition, your statement that only current in the balun circuit can produce heat is completely false.? High voltage RF can create major core heating due to dielectric losses in the ferrite core independent of the magnitude of current flow in the tuning circuit. Several discussions on the TowerTalk reflector have pointed this out over the years for baluns and common mode chokes in ham radio applications. Dave?? AB7E On 9/2/2020 3:55 PM, Adrian wrote: > The problem is evident on first KPA1500 match attempt before any > heating of the balun core is possible. It is not a core heat issue at > all. > > If it was the OP would be able to get an ok initial atu match, that > would then deteriorate with core heat..The issue is from the get-go. > > Also only current in the balun? circuit produces emf and therefore > core heat. Voltage is only a factor in how much current flows depending > > on circuit impedance, Plenty of voltage with no current = no heat. > > > On 3/9/20 3:25 am, David Gilbert wrote: >> >> More likely that the ferrite core is getting hot from excessive >> VSWR.? High current could, but rarely does, heat up the coil, but >> it's high voltage which often heats up the core.? At low power (and >> therefore low VSWR voltage) it wouldn't necessarily be a problem, but >> at high power it easily could.? I know this from personal experience >> with a 160m Inverted-L that initially had a high VSWR that with high >> power heated up a MUCH better common mode choke (homebrew per K9YC >> guidelines) than the Balun Designs stuff. >> >> 73, >> Dave?? AB7E From w5sum at comcast.net Wed Sep 2 20:03:22 2020 From: w5sum at comcast.net (Ronnie Hull) Date: Wed, 2 Sep 2020 19:03:22 -0500 Subject: [Elecraft] UPDATE KPA1500 on 160M Message-ID: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> The original thread has gone off on some tangents. I truly appreciate all the suggestions. I seem to have cured the problem! ORIGINAL ISSUE was using a new W7FG 160m doublet with 600 ohm true ladder line. The ladder line was hooked to a Balun Design 4:1 ( as recommended by the seller of the antenna). The antenna would be matched great in 160M by the internal ATU in the K3 but with the KPA1500 inline it all went north really fast, resulting in the 1500 faulting out Earlier today I swapped in a DX Engineering maxi core 4:1 and it worked a hell of a lot better but the KPA1500 still could not match it better than 9:1 Mind you this antenna matches superb on other bands with the KPA1500 Also the KPA1500 works great into a dummy load so I knew the issue was the antenna or part of it Last I put in line a DX Engineering maxi core 6:1 and BAM... it worked! The KPA1500 matches to 2.5:1 which is good enough for now. Next I will experiment with the 600 ohm ladder line length. Right now I?m using 57?. I will add 10? tomorrow and see what shakes out and will let you fellas know Thanks for all the help and suggestions! Ronnie W5SUM Sent from my iPhone From vk4tux at gmail.com Wed Sep 2 20:52:13 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 10:52:13 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> Message-ID: <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> I say that your response is completely false and you are missing basic electricity facts. The high voltage becomes an issue when insulation breaks down, and then *current *starts to flow through the fault path converting to emf & heat directly and via induced current resulting ;? P = E X I*. *Without the current the heat does not occur, it is basic physics, and the heat is directly proportional to the current. Voltage can exist without current, but current cannot exist without voltage. Heat produced is directly proportional to the current whether it be in the intentional circuit path, or fault path caused by high voltage insulation breakdown.. > > In addition, your statement that only current in the balun circuit can > produce heat is completely false.? High voltage RF can create major > core heating due to dielectric losses in the ferrite core independent > of the magnitude of current flow in the tuning circuit. Several > discussions on the TowerTalk reflector have pointed this out over the > years for baluns and common mode chokes in ham radio applications. > > Dave?? AB7E > > From vk4tux at gmail.com Wed Sep 2 20:59:51 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 10:59:51 +1000 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> References: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> Message-ID: Ronnie, well done. Moving to a different ratio balun is a smart obvious move towards obtaining a better match, especially at higher power maintaining insulation specs required. From curiosity what was the model number of the BD 4:1 balun you had initially please ? On 3/9/20 10:03 am, Ronnie Hull wrote: > The original thread has gone off on some tangents. I truly appreciate all the suggestions. > > I seem to have cured the problem! > > ORIGINAL ISSUE was using a new W7FG 160m doublet with 600 ohm true ladder line. The ladder line was hooked to a Balun Design 4:1 ( as recommended by the seller of the antenna). The antenna would be matched great in 160M by the internal ATU in the K3 but with the KPA1500 inline it all went north really fast, resulting in the 1500 faulting out > > Earlier today I swapped in a DX Engineering maxi core 4:1 and it worked a hell of a lot better but the KPA1500 still could not match it better than 9:1 > > Mind you this antenna matches superb on other bands with the KPA1500 > > Also the KPA1500 works great into a dummy load so I knew the issue was the antenna or part of it > > Last I put in line a DX Engineering maxi core 6:1 and BAM... it worked! > The KPA1500 matches to 2.5:1 which is good enough for now. > > Next I will experiment with the 600 ohm ladder line length. Right now I?m using 57?. I will add 10? tomorrow and see what shakes out and will let you fellas know > > Thanks for all the help and suggestions! > > Ronnie W5SUM > From jtmiller47 at gmail.com Wed Sep 2 21:06:56 2020 From: jtmiller47 at gmail.com (Jim Miller) Date: Wed, 2 Sep 2020 21:06:56 -0400 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: References: Message-ID: Have you measured the impedance presented to the amplifier with an antenna analyzer? Jim ab3cv On Sep 2, 2020, at 9:03 PM, Adrian wrote: ?Ronnie, well done. Moving to a different ratio balun is a smart obvious move towards obtaining a better match, especially at higher power maintaining insulation specs required. From curiosity what was the model number of the BD 4:1 balun you had initially please ? > On 3/9/20 10:03 am, Ronnie Hull wrote: > The original thread has gone off on some tangents. I truly appreciate all the suggestions. > > I seem to have cured the problem! > > ORIGINAL ISSUE was using a new W7FG 160m doublet with 600 ohm true ladder line. The ladder line was hooked to a Balun Design 4:1 ( as recommended by the seller of the antenna). The antenna would be matched great in 160M by the internal ATU in the K3 but with the KPA1500 inline it all went north really fast, resulting in the 1500 faulting out > > Earlier today I swapped in a DX Engineering maxi core 4:1 and it worked a hell of a lot better but the KPA1500 still could not match it better than 9:1 > > Mind you this antenna matches superb on other bands with the KPA1500 > > Also the KPA1500 works great into a dummy load so I knew the issue was the antenna or part of it > > Last I put in line a DX Engineering maxi core 6:1 and BAM... it worked! > The KPA1500 matches to 2.5:1 which is good enough for now. > > Next I will experiment with the 600 ohm ladder line length. Right now I?m using 57?. I will add 10? tomorrow and see what shakes out and will let you fellas know > > Thanks for all the help and suggestions! > > Ronnie W5SUM > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jim at jtmiller.com From w5sum at comcast.net Wed Sep 2 21:37:44 2020 From: w5sum at comcast.net (w5sum at comcast.net) Date: Wed, 2 Sep 2020 20:37:44 -0500 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: References: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> Message-ID: <2477417A09AA468F9D903E3702A3F02B@MININTMC1HLDC> 4114T was the BD Balun model #. I'm not putting down there product at all. When strictly using the ATU in the K3 it matched wonderfully. The fly in the buttermilk was when the KPA1500 was thrown into the mix. Ronnie -----Original Message----- From: Adrian Sent: Wednesday, September 02, 2020 7:59 PM To: Ronnie Hull ; Elecraft Subject: Re: [Elecraft] UPDATE KPA1500 on 160M Ronnie, well done. Moving to a different ratio balun is a smart obvious move towards obtaining a better match, especially at higher power maintaining insulation specs required. >From curiosity what was the model number of the BD 4:1 balun you had initially please ? On 3/9/20 10:03 am, Ronnie Hull wrote: > The original thread has gone off on some tangents. I truly appreciate all > the suggestions. > > I seem to have cured the problem! > > ORIGINAL ISSUE was using a new W7FG 160m doublet with 600 ohm true ladder > line. The ladder line was hooked to a Balun Design 4:1 ( as recommended by > the seller of the antenna). The antenna would be matched great in 160M by > the internal ATU in the K3 but with the KPA1500 inline it all went north > really fast, resulting in the 1500 faulting out > > Earlier today I swapped in a DX Engineering maxi core 4:1 and it worked a > hell of a lot better but the KPA1500 still could not match it better than > 9:1 > > Mind you this antenna matches superb on other bands with the KPA1500 > > Also the KPA1500 works great into a dummy load so I knew the issue was the > antenna or part of it > > Last I put in line a DX Engineering maxi core 6:1 and BAM... it worked! > The KPA1500 matches to 2.5:1 which is good enough for now. > > Next I will experiment with the 600 ohm ladder line length. Right now I?m > using 57?. I will add 10? tomorrow and see what shakes out and will let > you fellas know > > Thanks for all the help and suggestions! > > Ronnie W5SUM > From w6jhb at me.com Wed Sep 2 21:41:23 2020 From: w6jhb at me.com (James Bennett) Date: Wed, 2 Sep 2020 18:41:23 -0700 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: References: Message-ID: Ronnie, I?m kinda late to this dance, but did want to toss in my thoughts. I assume you are running a length of beefy coax from the back of the KPA1500 to the balun. I do the same with my KPA500/KAT500. About 10 feet of 9913 coax to the Balun Designs box, then 110 feet of 600 ohm line to the antenna feed point. I initially had a very ugly SWR on 20 meters that the KAT500 balked at; the other bands were fine. Changing the length of the coax between the tuner and the balun cured the problem - I went from 20 feet (a convenient piece of coax I had lying around) to 10 feet. If you?ve got some other lengths of coax available, you might want to try switching them in / out - might be easier than chopping the ladder line. 73, Jim / W6JHB > On Sep 2, 2020, at 6:06 PM, Jim Miller wrote: > > Have you measured the impedance presented to the amplifier with an antenna analyzer? > > Jim ab3cv > > On Sep 2, 2020, at 9:03 PM, Adrian > wrote: > > ?Ronnie, well done. Moving to a different ratio balun is a smart obvious move towards obtaining a better match, > > especially at higher power maintaining insulation specs required. > > From curiosity what was the model number of the BD 4:1 balun you had initially please ? > > >> On 3/9/20 10:03 am, Ronnie Hull wrote: >> The original thread has gone off on some tangents. I truly appreciate all the suggestions. >> >> I seem to have cured the problem! >> >> ORIGINAL ISSUE was using a new W7FG 160m doublet with 600 ohm true ladder line. The ladder line was hooked to a Balun Design 4:1 ( as recommended by the seller of the antenna). The antenna would be matched great in 160M by the internal ATU in the K3 but with the KPA1500 inline it all went north really fast, resulting in the 1500 faulting out >> >> Earlier today I swapped in a DX Engineering maxi core 4:1 and it worked a hell of a lot better but the KPA1500 still could not match it better than 9:1 >> >> Mind you this antenna matches superb on other bands with the KPA1500 >> >> Also the KPA1500 works great into a dummy load so I knew the issue was the antenna or part of it >> >> Last I put in line a DX Engineering maxi core 6:1 and BAM... it worked! >> The KPA1500 matches to 2.5:1 which is good enough for now. >> >> Next I will experiment with the 600 ohm ladder line length. Right now I?m using 57?. I will add 10? tomorrow and see what shakes out and will let you fellas know >> >> Thanks for all the help and suggestions! >> >> Ronnie W5SUM >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jim at jtmiller.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6jhb at me.com From ab7echo at gmail.com Wed Sep 2 22:25:56 2020 From: ab7echo at gmail.com (David Gilbert) Date: Wed, 2 Sep 2020 19:25:56 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> Message-ID: <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> OK ... I'm going to make this simple for you.? Picture a material (like a capacitor) with a lossy dielectric, and then apply a high RF voltage across it.? The dielectric passes a current as the result of the voltage, and the lossiness of the dielectric generates heat. With a lot of voltage the heat generated can be considerable. Now then, whether you want to acknowledge it or not, a ferrite core IS a lossy dielectric and can get hot when you put a high enough RF voltage across it INDEPENDENT OF THE CURRENT FLOWING THROUGH THE WINDING AROUND THE CORE.? You can find innumerable references to the dielectric losses of ferrite materials if you just bother to do some internet searching.? This is NOT an insulation breakdown issue ... not at all. All of this can happen as soon as power is applied to the system containing the ferrite.? Certainly the rate of temperature rise will be dependent upon how much voltage is applied, the frequency of it, and the dielectric loss characteristics of the particular ferrite, but VSWR is the voltage we're talking about here and that becomes relevant immediately upon application of power. I suspect that you will dig in your heels and continue to dispute this basic physics, but at least I hope others here will understand things better than you do. Dave?? AB7E On 9/2/2020 5:52 PM, Adrian wrote: > I say that your response is completely false and you are missing basic > electricity facts. The high voltage becomes an issue when insulation > breaks down, and then *current *starts > > to flow through the fault path converting to emf & heat directly and > via induced current resulting ;? P = E X I*. *Without the current the > heat does not occur, it is basic physics, and > > the heat is directly proportional to the current. Voltage can exist > without current, but current cannot exist without voltage. Heat > produced is directly proportional to the current whether > > it be in the intentional circuit path, or fault path caused by high > voltage insulation breakdown.. > >> >> In addition, your statement that only current in the balun circuit >> can produce heat is completely false.? High voltage RF can create >> major core heating due to dielectric losses in the ferrite core >> independent of the magnitude of current flow in the tuning circuit. >> Several discussions on the TowerTalk reflector have pointed this out >> over the years for baluns and common mode chokes in ham radio >> applications. >> >> Dave?? AB7E >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ab7echo at gmail.com From vk4tux at gmail.com Wed Sep 2 22:37:26 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 12:37:26 +1000 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: <2477417A09AA468F9D903E3702A3F02B@MININTMC1HLDC> References: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> <2477417A09AA468F9D903E3702A3F02B@MININTMC1HLDC> Message-ID: Ok on that. I have good success with true OCF (not windom) antennas and Balun Designs 4:1 current baluns in the past. These days I just use apex high delta loops with direct feed via a lmr240 multi-wound toroid choke at feedpoint for great results. Bottom corner fed (vertically polarised), so feed-line length and losses are kept minimal . I find this type of antenna very quiet, and neighbour friendly in all respects. It would have been interesting to see how a 4116 performed on yours. On 3/9/20 11:37 am, w5sum at comcast.net wrote: > 4114T was the BD Balun model #.? I'm not putting down there product at > all. When strictly using the ATU in the K3 it matched wonderfully.??? > The fly in the buttermilk was when the KPA1500 was thrown into the mix. > > Ronnie > From vk4tux at gmail.com Wed Sep 2 22:42:04 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 12:42:04 +1000 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: References: Message-ID: Yes I have seen that, very good point, and I was also thinking about the lmr400 length earlier in the thread. I felt that Ronnie may not warm to that idea, so did not mention it. It is a bit of hit and miss sometimes with that solution, but once there, your done. On 3/9/20 11:41 am, James Bennett via Elecraft wrote: > Ronnie, > > I?m kinda late to this dance, but did want to toss in my thoughts. I assume you are running a length of beefy coax from the back of the KPA1500 to the balun. I do the same with my KPA500/KAT500. About 10 feet of 9913 coax to the Balun Designs box, then 110 feet of 600 ohm line to the antenna feed point. I initially had a very ugly SWR on 20 meters that the KAT500 balked at; the other bands were fine. Changing the length of the coax between the tuner and the balun cured the problem - I went from 20 feet (a convenient piece of coax I had lying around) to 10 feet. If you?ve got some other lengths of coax available, you might want to try switching them in / out - might be easier than chopping the ladder line. > > 73, Jim / W6JHB > > From aa4lr at arrl.net Wed Sep 2 22:44:00 2020 From: aa4lr at arrl.net (Bill Coleman) Date: Wed, 2 Sep 2020 22:44:00 -0400 Subject: [Elecraft] [Bulk] The KSYN3A synth will always be available as a K3 upgrade In-Reply-To: <4901108B-65C7-4D62-8C30-F715214420E8@elecraft.com> References: <4901108B-65C7-4D62-8C30-F715214420E8@elecraft.com> Message-ID: <4FD50627-EA77-4D17-B254-37049FD031F5@arrl.net> Well, I guess now there is an end date. I?m glad I purchased the two I needed last November. > On Oct 1, 2015, at 2:54 PM, Wayne Burdick wrote: > > Hi all, > > Just to put an end to any unfounded rumors: The KSYN3A will always be available for K3 upgrades. We use the same synth module in the K3S, and there is no end date. > > 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 aa4lr at arrl.net Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 From vk4tux at gmail.com Wed Sep 2 23:12:40 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 13:12:40 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> Message-ID: You neglect to fill in the missing part where voltage is causing the current which is causing the heat. The use of a magnetic core can increase the strength ofmagnetic field in anelectromagnetic coil by a factor of several hundred times what it would be without the core. However, magnetic cores have side effects which must be taken into account. Inalternating current (AC) devices they cause energy losses, calledcore losses , due tohysteresis andeddy *currents* in applications such as transformers and inductors. "Soft" magnetic materials with lowcoercivity and hysteresis, such assilicon steel , orferrite , are usually used in cores. Sudden high swr issues at high power are caused by insulation breakdown. The heat is directly proportional to the current producing it. You half the current and therefore halve the heat. However this does not apply to voltage as current flow cannot be taken for granted. talking only about voltage, as voltage can in a current equation. You can halve the voltage and may have little heat due to the voltage breakdown no longer in place. Magnetism is created by current, Magnetism cutting a conductor produces current which produces heat. Voltage only defined, never has and never will be responsible for heat production P =I^2 R . *Dielectric loss*quantifies adielectric material 's inherent dissipation of electromagnetic energy (e.g. heat).^[1] It can be parameterized in terms of either the*loss angle*/?/or the corresponding*loss tangent*tan /?/. Both refer to thephasor in thecomplex plane whose real and imaginary parts are theresistive (lossy) component of an electromagnetic field and itsreactive (lossless) counterpart It is the *current* induced by this electromagnetic field, not cancelled by back emf, that causes heat. On 3/9/20 12:25 pm, David Gilbert wrote: > > > OK ... I'm going to make this simple for you.? Picture a material > (like a capacitor) with a lossy dielectric, and then apply a high RF > voltage across it.? The dielectric passes a current as the result of > the voltage, and the lossiness of the dielectric generates heat. With > a lot of voltage the heat generated can be considerable. > > Now then, whether you want to acknowledge it or not, a ferrite core IS > a lossy dielectric and can get hot when you put a high enough RF > voltage across it INDEPENDENT OF THE CURRENT FLOWING THROUGH THE > WINDING AROUND THE CORE.? You can find innumerable references to the > dielectric losses of ferrite materials if you just bother to do some > internet searching.? This is NOT an insulation breakdown issue ... not > at all. > > All of this can happen as soon as power is applied to the system > containing the ferrite.? Certainly the rate of temperature rise will > be dependent upon how much voltage is applied, the frequency of it, > and the dielectric loss characteristics of the particular ferrite, but > VSWR is the voltage we're talking about here and that becomes relevant > immediately upon application of power. > > I suspect that you will dig in your heels and continue to dispute this > basic physics, but at least I hope others here will understand things > better than you do. > > Dave?? AB7E > > > > On 9/2/2020 5:52 PM, Adrian wrote: >> I say that your response is completely false and you are missing >> basic electricity facts. The high voltage becomes an issue when >> insulation breaks down, and then *current *starts >> >> to flow through the fault path converting to emf & heat directly and >> via induced current resulting ;? P = E X I*. *Without the current the >> heat does not occur, it is basic physics, and >> >> the heat is directly proportional to the current. Voltage can exist >> without current, but current cannot exist without voltage. Heat >> produced is directly proportional to the current whether >> >> it be in the intentional circuit path, or fault path caused by high >> voltage insulation breakdown.. >> >>> >>> In addition, your statement that only current in the balun circuit >>> can produce heat is completely false.? High voltage RF can create >>> major core heating due to dielectric losses in the ferrite core >>> independent of the magnitude of current flow in the tuning circuit. >>> Several discussions on the TowerTalk reflector have pointed this out >>> over the years for baluns and common mode chokes in ham radio >>> applications. >>> >>> Dave?? AB7E >>> >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to ab7echo at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to vk4tux at gmail.com From vk4tux at gmail.com Thu Sep 3 00:02:48 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 14:02:48 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> Message-ID: <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> > Now then, whether you want to acknowledge it or not, a ferrite core IS > a lossy dielectric and can get hot when you put a high enough RF > voltage across it INDEPENDENT OF THE CURRENT FLOWING THROUGH THE > WINDING AROUND THE CORE.? You can find innumerable references to the > dielectric losses of ferrite materials if you just bother to do some > internet searching.? This is NOT an insulation breakdown issue ... not > at all. > A dielectric is defined as an insulator . A ferrite core is not a dielectric (insulator),? This is the false fact in your theory. *Dielectric heating*, also known as*electronic heating*,*radio frequency heating*, and*high-frequency heating*, is the process in which aradio frequency (RF) alternating electric field, orradio wave ormicrowave electromagnetic radiation heats adielectric material. It is the dielectric material being heated via molecular rotation. A ferrite core although not a good conductor also is not a dielectric, and no mention of dielectric loss is attributed to its heating losses ; https://elnamagnetics.com/wp-content/uploads/library/TSC-Ferrite-International/Predicting_Temperature_Rise_of_Ferrite_Cored_Transformers.pdf From ab7echo at gmail.com Thu Sep 3 00:12:07 2020 From: ab7echo at gmail.com (David Gilbert) Date: Wed, 2 Sep 2020 21:12:07 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> Message-ID: <7a85aaf5-3af1-6c5e-d3a9-8905d26b32e7@gmail.com> Like I said, you're refusing to understand the physics of dielectric loss in a ferrite.? The heat is caused by dielectric currents induced by the high RF E-field from the VSWR, not the emf caused by the current in it. I'm done with trying to educate you. Dave?? AB7E On 9/2/2020 8:12 PM, Adrian wrote: > > You neglect to fill in the missing part where voltage is causing the > current which is causing the heat. > > The use of a magnetic core can increase the strength ofmagnetic field > in anelectromagnetic > coil by a factor > of several hundred times what it would be without the core. However, > magnetic cores have side effects which must be taken into account. > Inalternating current > (AC) devices they > cause energy losses, calledcore losses > , due tohysteresis > andeddy *currents* > in applications such as > transformers and inductors. "Soft" magnetic materials with > lowcoercivity and > hysteresis, such assilicon steel > , orferrite > , are usually used in > cores. > > Sudden high swr issues at high power are caused by insulation breakdown. > > The heat is directly proportional to the current producing it. You > half the current and therefore halve the heat. > > However this does not apply to voltage as current flow cannot be taken > for granted. talking only about voltage, as voltage can in a current > equation. > > You can halve the voltage and may have little heat due to the voltage > breakdown no longer in place. > > Magnetism is created by current, Magnetism cutting a conductor > produces current which produces heat. > > Voltage only defined, never has and never will be responsible for heat > production P =I^2 R . > > *Dielectric loss*quantifies adielectric material > 's inherent > dissipation of electromagnetic energy (e.g. heat).^[1] > It can be > parameterized in terms of either the*loss angle*/?/or the > corresponding*loss tangent*tan /?/. Both refer to thephasor > in thecomplex plane > whose real and imaginary > parts are theresistive > (lossy) component > of an electromagnetic field and itsreactive > (lossless) > counterpart > > It is the *current* induced by this electromagnetic field, not > cancelled by back emf, that causes heat. > > > On 3/9/20 12:25 pm, David Gilbert wrote: >> >> >> OK ... I'm going to make this simple for you.? Picture a material >> (like a capacitor) with a lossy dielectric, and then apply a high RF >> voltage across it.? The dielectric passes a current as the result of >> the voltage, and the lossiness of the dielectric generates heat. With >> a lot of voltage the heat generated can be considerable. >> >> Now then, whether you want to acknowledge it or not, a ferrite core >> IS a lossy dielectric and can get hot when you put a high enough RF >> voltage across it INDEPENDENT OF THE CURRENT FLOWING THROUGH THE >> WINDING AROUND THE CORE.? You can find innumerable references to the >> dielectric losses of ferrite materials if you just bother to do some >> internet searching.? This is NOT an insulation breakdown issue ... >> not at all. >> >> All of this can happen as soon as power is applied to the system >> containing the ferrite.? Certainly the rate of temperature rise will >> be dependent upon how much voltage is applied, the frequency of it, >> and the dielectric loss characteristics of the particular ferrite, >> but VSWR is the voltage we're talking about here and that becomes >> relevant immediately upon application of power. >> >> I suspect that you will dig in your heels and continue to dispute >> this basic physics, but at least I hope others here will understand >> things better than you do. >> >> Dave?? AB7E >> >> >> >> On 9/2/2020 5:52 PM, Adrian wrote: >>> I say that your response is completely false and you are missing >>> basic electricity facts. The high voltage becomes an issue when >>> insulation breaks down, and then *current *starts >>> >>> to flow through the fault path converting to emf & heat directly and >>> via induced current resulting ;? P = E X I*. *Without the current >>> the heat does not occur, it is basic physics, and >>> >>> the heat is directly proportional to the current. Voltage can exist >>> without current, but current cannot exist without voltage. Heat >>> produced is directly proportional to the current whether >>> >>> it be in the intentional circuit path, or fault path caused by high >>> voltage insulation breakdown.. >>> >>>> >>>> In addition, your statement that only current in the balun circuit >>>> can produce heat is completely false.? High voltage RF can create >>>> major core heating due to dielectric losses in the ferrite core >>>> independent of the magnitude of current flow in the tuning circuit. >>>> Several discussions on the TowerTalk reflector have pointed this >>>> out over the years for baluns and common mode chokes in ham radio >>>> applications. >>>> >>>> Dave?? AB7E >>>> >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to ab7echo at gmail.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to vk4tux at gmail.com From ab7echo at gmail.com Thu Sep 3 00:15:11 2020 From: ab7echo at gmail.com (David Gilbert) Date: Wed, 2 Sep 2020 21:15:11 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> Message-ID: If you weren't too stubborn you could find many, many online references to the dielectric characteristics of ferrites.? A ferite core absolutely IS a dielectric.? There is nothing false about what I've been telling you. Dave? AB7E On 9/2/2020 9:02 PM, Adrian wrote: > > >> Now then, whether you want to acknowledge it or not, a ferrite core >> IS a lossy dielectric and can get hot when you put a high enough RF >> voltage across it INDEPENDENT OF THE CURRENT FLOWING THROUGH THE >> WINDING AROUND THE CORE.? You can find innumerable references to the >> dielectric losses of ferrite materials if you just bother to do some >> internet searching.? This is NOT an insulation breakdown issue ... >> not at all. >> > A dielectric is defined as an insulator . A ferrite core is not a > dielectric (insulator),? This is the false fact in your theory. > > *Dielectric heating*, also known as*electronic heating*,*radio > frequency heating*, and*high-frequency heating*, is the process in > which aradio frequency > (RF) alternating > electric field, orradio wave > ormicrowave > electromagnetic radiation > heats > adielectric material. > > It is the dielectric material being heated via molecular rotation. > > > A ferrite core although not a good conductor also is not a dielectric, > and no mention of dielectric loss is attributed to its heating losses ; > > > https://elnamagnetics.com/wp-content/uploads/library/TSC-Ferrite-International/Predicting_Temperature_Rise_of_Ferrite_Cored_Transformers.pdf > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ab7echo at gmail.com From billamader at gmail.com Thu Sep 3 00:19:25 2020 From: billamader at gmail.com (K8TE) Date: Wed, 2 Sep 2020 21:19:25 -0700 (MST) Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> References: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> Message-ID: <1599106765422-0.post@n2.nabble.com> Nowhere has there been a mention of what VSWR the tuner sees, only the result of its match which is 2.5:1. That means the VSWR it sees is beyond its capability to tune properly and run full power. This information is available on the KPA1500 panel display. It will also state the maximum allowable power output. What are those values? I suspect the VSWR is quite high and the allowable power well below 1,500 Watts. It's likely you're expecting more power-handling capability than the BALUN, either one, can handle. When one writes "quickly" that is interpreted differently by all those who read it. Obviously, 20 to 30 seconds is not "quickly", at least to me, but a very good indications of something overheating, but not instantly. The latter could lead toward a very different conclusion. My current (pun intended) conclusion is don't run over 800 Watts on 160m! That is about the same level you run with your other amplifier without a failure, maybe, if you don't run it too long at that level. I'm glad you concluded it's an antenna system problem. BTW, W8JI has written about this antenna and recommends an 80-20% ratio, rather than the typical 67-33% ratio. He has modeled it for various bands on his web site. I don't know why the common 67-33% values are used when someone has shown there is a better choice. Old habits, good and bad, die hard. 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From vk4tux at gmail.com Thu Sep 3 00:47:10 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 14:47:10 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> Message-ID: <27350916-674a-f352-9988-8374d38b3525@gmail.com> Please quote your online reference please regarding ferrite cores being a dielectric If so then my not just use un-enammeled wire on a course wound core ? A dielectric is an insulator ; Dielectric From Wikipedia, the free encyclopedia Jump to navigation Jump to search Not to be confused withDielectric constant orDialectic . A*dielectric*(or*dielectric material*) is anelectrical insulator I don't see any reference to ferrite cores being a dielectric online. The molecular alignment heating method regarding dielectric loss, is not mentioned on any ferrite core RF heating science, that I can find. Please read ; Predicting Temperature Rise of Ferrite Cored Transformers George Orenchak TSC Ferrite International 39105 North Magnetics Boulevard Wadsworth, IL 60083 "Core Losses Core losses are a significant contributor to the temperature rise of a transformer. Hysteresis loss, eddy *current* loss and residual loss all contribute to the total core loss. At high flux densities and relatively low frequencies, hysteresis losses are usually dominant. Hysteresis loss is the amount the magnetization of the ferrite material lags the magnetizing force because of molecular friction. The loss of energy due to hysteresis loss is proportional to the area of the static or low frequency B-H loop. At high frequencies, eddy current losses usually dominate. Eddy *current* loss is from a varying induction that produces electromotive forces, which cause a current to circulate within a magnetic material. These eddy *currents* result in energy loss. Understanding the behaviour of the combined total core loss as functions of flux density and of frequency is most important. " Dielectric is not mentioned. On 3/9/20 2:15 pm, David Gilbert wrote: > > If you weren't too stubborn you could find many, many online > references to the dielectric characteristics of ferrites.? A ferite > core absolutely IS a dielectric.? There is nothing false about what > I've been telling you. > > Dave? AB7E > > From vk4tux at gmail.com Thu Sep 3 01:07:12 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 15:07:12 +1000 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: <1599106765422-0.post@n2.nabble.com> References: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> <1599106765422-0.post@n2.nabble.com> Message-ID: Bill, ok on that, yes more electronic amplifiers especially use a swr limit to protect against the high voltages generated at high swr. Sometimes you are better off using a robust manual tuner made for the job external to the amp. High swr between a remote balun and atu at amp, will emphasis balun heating loss as the signal passes the feedline length many times before totally dissipating in the coax loss & balun core,some as heat loss, and some as desired induced balun current to antenna radiated RF. Ladder line back to a close-by matchbox, which can handle KV, close to amp, would give best power efficiency, as ladder line has minimal feedline loss. I would be using a manual ext tuner with this type of antenna, also taking away risk of damaging the amp. On 3/9/20 2:19 pm, K8TE wrote: > Nowhere has there been a mention of what VSWR the tuner sees, only the result > of its match which is 2.5:1. > That means the VSWR it sees is beyond its capability to tune properly and > run full power. This information is available on the KPA1500 panel display. > It will also state the maximum allowable power output. What are those > values? > > I suspect the VSWR is quite high and the allowable power well below 1,500 > Watts. It's likely you're expecting more power-handling capability than the > BALUN, either one, can handle. > > When one writes "quickly" that is interpreted differently by all those who > read it. Obviously, 20 to 30 seconds is not "quickly", at least to me, but > a very good indications of something overheating, but not instantly. The > latter could lead toward a very different conclusion. > > My current (pun intended) conclusion is don't run over 800 Watts on 160m! > That is about the same level you run with your other amplifier without a > failure, maybe, if you don't run it too long at that level. I'm glad you > concluded it's an antenna system problem. > > BTW, W8JI has written about this antenna and recommends an 80-20% ratio, > rather than the typical 67-33% ratio. He has modeled it for various bands > on his web site. I don't know why the common 67-33% values are used when > someone has shown there is a better choice. Old habits, good and bad, die > hard. > > 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 vk4tux at gmail.com > From vk4tux at gmail.com Thu Sep 3 01:58:48 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 15:58:48 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <24baca6c-3da3-13a4-7f8e-5c16866e2e6a@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> <27350916-674a-f352-9988-8374d38b3525@gmail.com> <24baca6c-3da3-13a4-7f8e-5c16866e2e6a@gmail.com> Message-ID: <5dc65a8e-742e-06da-72b8-26779b4b6dd2@gmail.com> That reference contradicts itself by its ceramic refence point to ; A *ceramic* is any of the various hard, brittle, heat-resistant and corrosion-resistant materials made by shaping and then firing a nonmetallic^[1] mineral, such as clay, at a high temperature.^[2] Common examples are earthenware , porcelain , and brick . Ferrite is not a non-metallic material. I would advise the wiki to correct it's mistake. The facts are given by those expert on the subject that the dielectric molecular alignment method of heating does not apply to ferrite core heat loss, since the ferrite core being a high permeability material, already has its molecules aligned, and therefore no realignment, with its heat generating resistance being heat produced by the dielectric method is happening. You have not referred to any reference stating a ferrite core is a dielectric. POWER CONSIDERATIONS (Iron Powder & Ferrite) How large a core is needed to handle a certain amount of power? This is a question often asked, but unfortunately there is no simple answer. There are several factors involved such as: cross sectional area of the core, core material, turns count, and of course the variables of applied voltage and operating frequency. Overheating of the coil will usually take place long before saturation in most applications above 100 KHz. Now the question becomes "How large a core must I have to prevent overheating at a given frequency and power level? " Overheating can be caused by both wire and core material losses. Wire heating is affected by both DC and AC currents, while core heating is affected only by the AC (induced eddy *currents*) content of the signal. With a normal sine wave signal above 100 KHz, both the Iron Powder and Ferrite type cores will first be affected by overheating caused by core losses, rather than by saturation. Nothing about dielectric heating here. Mr Lazy On 3/9/20 3:31 pm, David Gilbert wrote: > > > If you weren't so stubborn (or lazy) you could have easily found this > reference on Wikipedia: > > "A *ferrite* is a ceramic material made by mixing and firing large > proportions of iron(III) oxide (Fe_2 O_3 , rust) blended with small > proportions of one or more additional metallic elements, such as > barium, manganese, nickel, and zinc." > > https://en.wikipedia.org/wiki/Ferrite_(magnet) > > Note the term "*ceramic*".? In what world do you live where ceramics > don't have dielectric properties?? Ever heard of ceramic capacitors? > > A simple Google search for "dielectric properties of ferrites" (of > which of course there are many varieties) turns up this sampling of > references out of a total of approximately *1,230,000* hits: > > https://ieeexplore.ieee.org/abstract/document/4051871 > > https://www.sciencedirect.com/science/article/abs/pii/S0925838809002084 > > https://pdfs.semanticscholar.org/9298/4f47d7c6060357c3f8c39bc142911960c5cf.pdf > (scroll down to page 58) > > https://aip.scitation.org/doi/abs/10.1063/1.4792494?journalCode=jap > > http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.416.6977&rep=rep1&type=pdf > > https://iopscience.iop.org/article/10.1143/JJAP.10.1520/meta > > https://ieeexplore.ieee.org/document/4051871 > > https://www.hindawi.com/journals/jnp/2016/4709687/ > > http://www.bjp-bg.com/papers/bjp2018_1_044-053.pdf > > http://www.ijera.com/papers/Vol7_issue2/Part-5/I0702054348.pdf > > http://chalcogen.ro/265_Farid.pdf > > Every one of those links talks about the dielectric properties of > ferrites. > > Dave?? AB7E > > > > On 9/2/2020 9:47 PM, Adrian wrote: >> >> Please quote your online reference please regarding ferrite cores >> being a dielectric >> >> If so then my not just use un-enammeled wire on a course wound core ? >> A dielectric is an insulator ; >> >> >> Dielectric >> >> From Wikipedia, the free encyclopedia >> Jump to navigation >> Jump to search >> >> Not to be confused withDielectric constant >> orDialectic >> . >> >> >> A*dielectric*(or*dielectric material*) is anelectrical insulator >> >> >> I don't see any reference to ferrite cores being a dielectric online. >> >> The molecular alignment heating method regarding dielectric loss, is >> not mentioned on any ferrite core RF heating science, that I can find. >> >> Please read ; >> >> Predicting Temperature Rise of Ferrite Cored Transformers George >> Orenchak TSC Ferrite International 39105 North Magnetics Boulevard >> Wadsworth, IL 60083 >> >> >> "Core Losses Core losses are a significant contributor to the >> temperature rise of a transformer. Hysteresis loss, eddy *current* >> loss and residual loss all contribute to the total core loss. At high >> flux densities and relatively low frequencies, hysteresis losses are >> usually dominant. Hysteresis loss is the amount the magnetization of >> the ferrite material lags the magnetizing force because of molecular >> friction. The loss of energy due to hysteresis loss is proportional >> to the area of the static or low frequency B-H loop. At high >> frequencies, eddy current losses usually dominate. Eddy *current* >> loss is from a varying induction that produces electromotive forces, >> which cause a current to circulate within a magnetic material. These >> eddy *currents* result in energy loss. Understanding the behaviour of >> the combined total core loss as functions of flux density and of >> frequency is most important. " >> >> >> Dielectric is not mentioned. >> >> >> >> >> >> >> >> >> >> >> >> >> On 3/9/20 2:15 pm, David Gilbert wrote: >>> >>> If you weren't too stubborn you could find many, many online >>> references to the dielectric characteristics of ferrites.? A ferite >>> core absolutely IS a dielectric.? There is nothing false about what >>> I've been telling you. >>> >>> Dave? AB7E >>> >>> > From vk4tux at gmail.com Thu Sep 3 02:18:26 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 16:18:26 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <24baca6c-3da3-13a4-7f8e-5c16866e2e6a@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> <27350916-674a-f352-9988-8374d38b3525@gmail.com> <24baca6c-3da3-13a4-7f8e-5c16866e2e6a@gmail.com> Message-ID: <4239f1cf-4c3b-becc-1271-776ef98e6592@gmail.com> Do you ever see slices of ferrite core used in capacitors, how do you think that would work? ? I bet you won't charge that one up.Putting metal laden material between charged poles is not a good idea. They usually stick to using a thin non metallic insulator with good insulation properties, otherwise known as a true dielectric. Ferrite cores are not a dielectric by David Gilbert ; > > Note the term "*ceramic*".? In what world do you live where ceramics > don't have dielectric properties?? Ever heard of ceramic capacitors? > > From jim at audiosystemsgroup.com Thu Sep 3 02:53:04 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 2 Sep 2020 23:53:04 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> Message-ID: On 9/2/2020 9:02 PM, Adrian wrote: > A dielectric is defined as an insulator . A ferrite core is not a > dielectric (insulator),? This is the false fact in your theory. You have massive gaps in your understanding of how common mode chokes work and the properties of ferrite materials. The best technical data refererence I know of Fair-Rite's catalog, which is online and can be downloaded as a pdf. https://ebiz.fair-rite.com/newfair/pdf/Fair-Rite_Catalog_17th_Edition.pdf The fundamental properties of ferrite materials vary widely depending on their chemical composition, commonly called "the mix," and each mix is tailored to a specific range of applications. A table summarizing those properties begins on page 4 in the print version, page 6 of the pdf. The resistivity of the materials listed varies over 7 orders of magnitude, from 50 ohm-cm to 10 exp9 ohm-cm. My tutorial on how common mode chokes work is here. k9yc.com/RFI-Ham.pdf The concepts were added to the ARRL Handbook around 2011. Designs for practical transmitting chokes are here. http://k9yc.com/2018Cookbook.pdf Note that these are not "baluns," a word that describes at least ten very different physical things, but rather common mode chokes. Their sole function is to minimize common mode current. They do not do impedance matching. That function is provided by very different things best called tranformer baluns, and they come in multiple forms. Extensive research I published in a peer reviewed AES paper in 2003 found manufacturer's literature from the '50s/'60s indicating that they understood how common mode chokes work, and after I published my work to the ham community, an engineering manager from the CIA passed along to me an unclassified engineering report from the US Army in the '70s that was in agreement with all of the fundamental concepts I had published and had developed a family of designs for field use. The only thing they missed was the property of dimensional resonance, which I learned about in classic reference a colleague found in the U of Chicago engineering library. That reference, by E. C. Snelling, is cited in several of my publications. 73, Jim K9YC From vk2bj at optusnet.com.au Thu Sep 3 03:09:36 2020 From: vk2bj at optusnet.com.au (Barry Simpson) Date: Thu, 3 Sep 2020 17:09:36 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <4239f1cf-4c3b-becc-1271-776ef98e6592@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> <27350916-674a-f352-9988-8374d38b3525@gmail.com> <24baca6c-3da3-13a4-7f8e-5c16866e2e6a@gmail.com> <4239f1cf-4c3b-becc-1271-776ef98e6592@gmail.com> Message-ID: This is an increasingly ungentlemanly debate. I am not an engineer nor do I claim any expertise in or knowledge of the subject under discussion. However, after a very rapid Google search, the following website would appear to provide some authoritative information. Please note that I have only identified it from the subject heading and I have not read it. https://ieeexplore.ieee.org/document/4051871 Best regards to both of you. Barry Simpson VK2BJ On Thu, 3 Sep 2020 at 16:18, Adrian wrote: > > Do you ever see slices of ferrite core used in capacitors, how do you > think that would work ? > > I bet you won't charge that one up.Putting metal laden material between > charged poles is not a good idea. > > They usually stick to using a thin non metallic insulator with good > insulation properties, otherwise known as a true dielectric. > > > Ferrite cores are not a dielectric > > > > by David Gilbert ; > > > > > Note the term "*ceramic*". In what world do you live where ceramics > > don't have dielectric properties? Ever heard of ceramic capacitors? > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to vk2bj at optusnet.com.au From k2vco.vic at gmail.com Thu Sep 3 03:56:30 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Thu, 3 Sep 2020 10:56:30 +0300 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <27350916-674a-f352-9988-8374d38b3525@gmail.com> References: <27350916-674a-f352-9988-8374d38b3525@gmail.com> Message-ID: <6C8ED809-9FF9-4997-AB59-6F1970A4DC3E@gmail.com> Ferrite is a bunch of tiny ferrous particles glued together by a nonconducting substance. It has magnetic properties but currents can?t flow in it (at least not very far). I haven?t tried, but I bet an ohmmeter would say it?s an insulator. Victor 4X6GP > On 3 Sep 2020, at 7:48, Adrian wrote: > > ?Please quote your online reference please regarding ferrite cores being a dielectric > > If so then my not just use un-enammeled wire on a course wound core ? A dielectric is an insulator ; > > > Dielectric > > From Wikipedia, the free encyclopedia > Jump to navigation Jump to search > Not to be confused withDielectric constant orDialectic . > > > A*dielectric*(or*dielectric material*) is anelectrical insulator > > I don't see any reference to ferrite cores being a dielectric online. > > The molecular alignment heating method regarding dielectric loss, is not mentioned on any ferrite core RF heating science, that I can find. > > Please read ; > > Predicting Temperature Rise of Ferrite Cored Transformers George Orenchak TSC Ferrite International 39105 North Magnetics Boulevard Wadsworth, IL 60083 > > > "Core Losses Core losses are a significant contributor to the temperature rise of a transformer. Hysteresis loss, eddy *current* loss and residual loss all contribute to the total core loss. At high flux densities and relatively low frequencies, hysteresis losses are usually dominant. Hysteresis loss is the amount the magnetization of the ferrite material lags the magnetizing force because of molecular friction. The loss of energy due to hysteresis loss is proportional to the area of the static or low frequency B-H loop. At high frequencies, eddy current losses usually dominate. Eddy *current* loss is from a varying induction that produces electromotive forces, which cause a current to circulate within a magnetic material. These eddy *currents* result in energy loss. Understanding the behaviour of the combined total core loss as functions of flux density and of frequency is most important. " > > > Dielectric is not mentioned. > > > > > > > > > > > > >> On 3/9/20 2:15 pm, David Gilbert wrote: >> >> If you weren't too stubborn you could find many, many online references to the dielectric characteristics of ferrites. A ferite core absolutely IS a dielectric. There is nothing false about what I've been telling you. >> >> Dave AB7E >> >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com From vk4tux at gmail.com Thu Sep 3 04:22:13 2020 From: vk4tux at gmail.com (Adrian) Date: Thu, 3 Sep 2020 18:22:13 +1000 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> Message-ID: <1a26834d-0b5f-381f-a4bb-00ceef3dbc53@gmail.com> Thinks, Jim, no the debate is purely about the cause of heat in a ferrite core balun, not the other things you mention. I use common mode chokes, and they work well. From your link ; "Power Loss Density - P (mW/cm3 ) The power absorbed by a body of ferrimagnetic material and dissipated as heat, when the body is subject to an alternating field which results in a measurable temperature rise. The total loss is divided by the volume of the body. " Eddy currents induced from that AC field as documented on numerous previous links , reveal themselves as heatloss and temperature rise, in differrent amounts depending on the material properties. Two primary things can cause the core to heat. 1. Resistive losses in the transformer winding wire due to the primary and secondary currents. 2. Ferrite core loss to to such factors as eddy currents, and magnetic hysteresis. I found Barry's link interesting but no mention of heat on the various sections. Adrian Fewster ' On 3/9/20 4:53 pm, Jim Brown wrote: > On 9/2/2020 9:02 PM, Adrian wrote: >> A dielectric is defined as an insulator . A ferrite core is not a >> dielectric (insulator),? This is the false fact in your theory. > You have massive gaps in your understanding of how common mode chokes > work and the properties of ferrite materials. The best technical data > refererence I know of Fair-Rite's catalog, which is online and can be > downloaded as a pdf. > > https://ebiz.fair-rite.com/newfair/pdf/Fair-Rite_Catalog_17th_Edition.pdf > > The fundamental properties of ferrite materials vary widely depending > on their chemical composition, commonly called "the mix," and each mix > is tailored to a specific range of applications. A table summarizing > those properties begins on page 4 in the print version, page 6 of the > pdf. The resistivity of the materials listed varies over 7 orders of > magnitude, from 50 ohm-cm to 10 exp9 ohm-cm. > > My tutorial on how common mode chokes work is here. > k9yc.com/RFI-Ham.pdf > The concepts were added to the ARRL Handbook around 2011. Designs for > practical transmitting chokes are here. > http://k9yc.com/2018Cookbook.pdf > > Note that these are not "baluns," a word that describes at least ten > very different physical things, but rather common mode chokes. Their > sole function is to minimize common mode current. They do not do > impedance matching. That function is provided by very different things > best called tranformer baluns, and they come in multiple forms. > > Extensive research I published in a peer reviewed AES paper in 2003 > found manufacturer's literature from the '50s/'60s indicating that > they understood how common mode chokes work, and after I published my > work to the ham community, an engineering manager from the CIA passed > along to me an unclassified engineering report from the US Army in the > '70s that was in agreement with all of the fundamental concepts I had > published and had developed a family of designs for field use. The > only thing they missed was the property of dimensional resonance, > which I learned about in classic reference a colleague found in the U > of Chicago engineering library. That reference, by E. C. Snelling, is > cited in several of my publications. > > 73, Jim K9YC > From k6xk at ncn.net Thu Sep 3 06:23:21 2020 From: k6xk at ncn.net (Roy) Date: Thu, 3 Sep 2020 05:23:21 -0500 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: References: Message-ID: <9c8caa39-2aaf-8040-6301-d648e065f9e9@ncn.net> KPA1500 tuner is rated for maximum antenna SWR of just 3 to 1. 73,? Roy? K6XK From d.cutter at ntlworld.com Thu Sep 3 07:21:11 2020 From: d.cutter at ntlworld.com (CUTTER DAVID) Date: Thu, 3 Sep 2020 12:21:11 +0100 (BST) Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: References: Message-ID: <952786193.416421.1599132071861@mail2.virginmedia.com> Ronnie You might try measuring the common mode current on your coax feed in various places, just a cheapo RF current meter clamped over the coax. That will tell you if the chokes you are using are doing their job. I know for sure that cmc causes considerable distortion of swr curves. Any antenna analyser will be fooled by cmc, so my 'umble advice is cure that with lots of ferrite wherever it's needed. I use K9YC-style chokes, eg several turns on 240-31 core, or, if it's really bad, several turns on several cores using 7" diameter turns (from memory, check his cookbook). I'm told this is cheaper and better than anything you can buy. Of course I know nothing about your layout but it has always helped me to ground the coax before it comes into the house. Apologies if I'm going over old stuff you've already done. 73 David G3UNA > On 03 September 2020 at 00:30 Ronnie Hull wrote: > > > Update > I took the Balun designs 4:1 out of line and put a Dx Engineering maxi core 5kw 4:1 in its place. It tunes a little better on 160 but the KPA1500 finally faults out and says cannot find match and shows 9:1.... better than 99:1 > > So I put the KPA1500 straight to a 2.5kw bird dummy load and it tunes instantly 1:1 in 160M > > So this fault is with the antenna for sure > > The only other Balun I have to try is a DX Engineering 6:1 which I will try in the morning. > > Failing that I will order a 1:1 feom DX Engineering > > But at least I know it?s the antenna that is causing this problem > > I?m going to also borrow a antenna analyzer tomorrow and see what gives. > Thanks for all the suggestions! > > We will whip this yet > > Ronnie w5sum > > Sent from my iPhone > > > On Sep 2, 2020, at 6:05 PM, Alan - G4GNX wrote: > > > > ?Ken, sorry this is rather long, but here goes............... > > > > I had a similar problem in the UK, with a OSCFD antenna, purchased from a UK company. I didn't question the theory and just assembled it according to instructions. > > > > As you would expect the antenna is made from two differing lengths of ruggedised, plastic coated copper wire, which is fed by a 4:1 Guanella balun, rated at 400W. The balun is potted in a weatherproof box and is fed via the customary PL259/SO239 connector with Mil Spec RG58 coaxial cable. About 6' down from the feed point is a common mode choke (sometimes called a sleeve balun) which consists of 8 ferrite inline cores, around the co-ax and held in place with heat shrink sleeving and cable ties. > > > > The rig was just the K3S/100W with internal tuner and all was well for many months, mostly using 40 metres SSB. A while later, I added the KPA500/KAT500 combo which I ran for a couple of very short periods at 400W to test. For a weekly net, I used only 200W and all seemed OK for a while, until suddenly the VSWR started to increase over the period of an 'over'. Over a few weeks this got more frequent and I would have to re-tune part way through an 'over'. At that time, I wan't sure whether it was an antenna issue, or the KPA500/KAT500, although I suspected that the KPA500 was getting too hot, so I posted a question on a forum and was contacted by Jack Brindle of Elecraft, who kindly looked at the KPA500 fault reports and sent me a comprehensive explanation of his findings based on the figures and his experience, which concluded that the antenna was almost certainly the culprit. > > > > I ordered a new 1KW Guanella balun and some much bigger ferrites, with the intention of replacing the RG58 with Westflex 103. In the meantime I soldiered on with the original setup until one day all hell let loose, with the KPA500 and KAT500 fault lights flashing and even the K3S got 'ticked off'. At this point I switched to my HF vertical, to keep me on the air. > > > > When I dismantled the wire antenna, I expected a balun fault, but it was actually OK. On further checking, after disconnecting the co-ax from the balun, the open ended co-ax showed a DC short on a test meter! > > > > I used the Rig Expert 600 to determine exactly where the short was and it turned out to be exactly where the sleeve ferrites had been, BUT there was no discoloration of the outer covering, or signs of melting, so I knew it was unlikely that the ferrite cores had got heated. I cut the section out of the co-ax and started to take it apart. With the outer covering all removed, there was still no sign of discoloration of the screen braid, but as I tried to remove the braid, it was obvious that there had been considerable heating as the center section of the braid has melted into the center conductor insulation, and somewhere in there, it has made it right through to the center conductor. > > > > Unfortunately I haven't yet found the exact point of the short, because I left the partly dismantled piece of inner co-ax on a table and one of my cats seems to have run off with it! :-D > > When I eventually find it, I'll continue investigating. > > > > In the meantime, one theory is that the common mode choke presented a high impedance to RF coming back down the co-ax and this in turn produced a very high voltage causing an arc between inner and outer and as the characteristics changed, in turn a high current node was created, which caused the heating effect. Another theory is that it is just a crappy piece of cable and it just failed. > > > > Unfortunately this is not the sort of fault that can be detected in its development stage by a low power antenna analyser, it needs a fair amount of power. > > > > This long tale may just give you some clues to your possible issue on 160m although on a different power scale.. > > > > 73, > > > > Alan. G4GNX > > > > > > ------ Original Message ------ > > From: "Ken Ramirez de Arellano" > > To: elecraft at mailman.qth.net > > Sent: 02/09/2020 22:41:30 > > Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m > > > >> Every bit of antenna hardware ( coax, balun, insulators, etc. have been > >> changed out or proven good. Connections are all solid. My KPA1500 will > >> transmit above 800 watts for about 15-30 seconds and then the SWR jumps up > >> and it faults out for high VSWR. I can run 1500 watts on all the other > >> ?Legacy? bands (10,15,20,40,80) with no problems. I?ve forced an STU > >> relearn and still the same issue. The antenna B amp is a Clipperton L and > >> that transmits at a KW out and I see no change in VSWR in the external > >> wattmeter using all of the same cabling. It?s starting to look like > >> something heating up in the KPA1500. Is anyone aware of a known issue for > >> this with the KPA1500 or a known fix? I would rather do a field repair > >> instead of sending to Elecraft from KP4. TIA Ken, KP3MM > >> -- > >> Ken Ramirez > >> KP3MM > >> > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to w5sum 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 d.cutter at ntlworld.com From chrisc at chris.org Thu Sep 3 08:03:45 2020 From: chrisc at chris.org (Chris Cox) Date: Thu, 3 Sep 2020 07:03:45 -0500 Subject: [Elecraft] KX3 ACC2 GPIO In-Reply-To: <5F622EEB-598E-4FE3-AF6F-429E24CACDCE@chris.org> References: <5F622EEB-598E-4FE3-AF6F-429E24CACDCE@chris.org> Message-ID: Just as final follow up, a mosfet switch worked for my requirements perfectly. 73! Chris Cox, N0UK chrisc at chris.org or chrisc at BritishCarAndDriver.com > On Aug 31, 2020, at 18:26, Chris Cox wrote: > > ?I?ve thought the problem through further and have decided to use a simple mosfet switch in the connector shell to invert the TXInh logic sense and configure the KX3 for -TXInh instead of +TXInh. > > Hard switching the GPIO pin showed that to be a usable workaround. > > 73! Chris Cox, N0UK > chrisc at chris.org or chrisc at BritishCarAndDriver.com > > >> On Aug 31, 2020, at 12:51, Chris Cox, N0UK wrote: >> >> ?I wish to interface my KX3 to my portable 10GHz transporter system. I have the transporter?s PTT sequencer configured to output a +ve TX Inhibit signal which I have been using to prevent my current I/F rig from transmitting until all relays have changed over to transmit. The current rig is a Yaesu FT-817. >> >> I want to be able to simply switchover the PTT/TXInh cable between the two rigs, so that I can continue using the ?817 as a backup in the event of some problem with the KX3, and so was intending to us the KX3?s ACC2 GPIO TX Inh +ve input just as I do the 817. >> >> However, it seems that the KX3 actually has some bias applied that requires to be pulled low to enable the transmitter, rather than looking for removal of the +ve signal. This will mean that I need more than to simple switch over the physical connectors on the umbilical cable. Although not insurmountable, it?s not exactly ideal. >> >> Anyone else done this or similar and, if so, what was your solution? >> >> 73 Chris >> >> >> Chris Cox, N0UK >> chrisc at chris.org >> From no9e at arrl.net Thu Sep 3 10:38:12 2020 From: no9e at arrl.net (no9e at arrl.net) Date: Thu, 3 Sep 2020 07:38:12 -0700 (MST) Subject: [Elecraft] F/S K3 Message-ID: <771036540.27212.1599143892347.JavaMail.administrator@n2.nabble.com> Did you sell? Ignacy NO9E I have my k3 up for sale..#1440 was sent in Jan 2019 for all updates..100watt..ATU..dual rvcr new KSYN3A/DVR/USB/FM AM 2.8 400 in main..2.7 500 in sub..KXV3B-F/KIO3B/ Asking $1500.00 shipped.. ?? 73s Bob W5RG ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lists+1215531472858-365791 at n2.nabble.com Quoted from: http://elecraft.365791.n2.nabble.com/F-S-K3-tp7664598.html _____________________________________ Sent from http://elecraft.365791.n2.nabble.com From hdv at kpnplanet.nl Thu Sep 3 11:03:54 2020 From: hdv at kpnplanet.nl (hdv at kpnplanet.nl) Date: Thu, 3 Sep 2020 17:03:54 +0200 Subject: [Elecraft] 2 different 144MHz transveters and CAT selection In-Reply-To: References: <1172852057.1480965.1599049090262.ref@mail.yahoo.com>, <1172852057.1480965.1599049090262@mail.yahoo.com> Message-ID: <01d201d68203$7136fc30$53a4f490$@kpnplanet.nl> I have the same K3s issue, however with the internal K144XV and an external dual rx 2 meter transverter. Besides CAT the same applies to the keyboard frequency input. I guess we have to live with it... 73 Henk PA0C -----Oorspronkelijk bericht----- Van: elecraft-bounces at mailman.qth.net Namens Conrad PA5Y Verzonden: woensdag 2 september 2020 15:08 Aan: elecraft at mailman.qth.net Onderwerp: [Elecraft] 2 different 144MHz transveters and CAT selection I have an unusual situation in that I have 2 different 2m transverters attached to my K3S. One system is a dual channel ME2T-XP and uses the SUB RX, this is only used for EME and it designated XV1. The second is used on tropo/terrestrial DX and contests and is an ME2T-ProII, this is XV2. If I use WSJT-X and use CAT I have a problem in that a CAT selection for 144MHz always chooses XV1 which is not what I want at all most of the time. There are gain and LO offset configurations that mean that using a switch in the IF is not ideal. Currently my solution is to set the RF frequency for XV1 to 70 MHz temporarily which always confuses me when I want to go on 2m EME. What would be ideal would be some way of setting the CAT XV priority from the front panel. I think that this must be a firmware update, its an easy one but of course would be low down the list. Something of a luxury problem I know. Maybe there is another way or something that I did not think of? Regards Conrad PA5Y ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to hdv at kpnplanet.nl -- Dit e-mailbericht is gecontroleerd op virussen met Avast antivirussoftware. https://www.avast.com/antivirus From jim at audiosystemsgroup.com Thu Sep 3 12:05:00 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Thu, 3 Sep 2020 09:05:00 -0700 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: <952786193.416421.1599132071861@mail2.virginmedia.com> References: <952786193.416421.1599132071861@mail2.virginmedia.com> Message-ID: <27b0212e-0952-664b-15bb-1e7060fb33ab@audiosystemsgroup.com> On 9/3/2020 4:21 AM, CUTTER DAVID via Elecraft wrote: > I use K9YC-style chokes, eg several turns on 240-31 core, or, if it's really bad, several turns on several cores using 7" diameter turns (from memory, check his cookbook). I'm told this is cheaper and better than anything you can buy. Of course I know nothing about your layout but it has always helped me to ground the coax before it comes into the house. Hi David, Note that, based on extensive research in 2017 and 2018, I no longer recommend the older style of choke that you're using, and I revised the RFI tutorial to reflect that. I published both that revision and the new Cookbook late in 2018. k9yc.com/publish.htm The problem with the older style chokes (multiple turns of coax on multiple #31 cores) is that 1) any "scrambling" of the winding reduces choking impedance, and 2) variations in winding style (diameter, spacing) make the chokes non-repeatable. The new choke designs ARE repeatable, AND take into account the wide manufacturing tolerances of all ferrite parts, which can significantly affect the choking impedance and where the chokes are tuned. The work I did in 2017 and 2018 included characterizing nearly 200 #31 cores obtained from multiple vendors over about ten years, selecting cores at the limits of those tolerances, winding and measuring hundreds of chokes on those cores, tabulating the results, and making recommendations for each band and each transmission line type based on worst case results for each design. Chokes wound following the new 2018 Cookbook should provide at least the specified response on any #31 core you buy. Note that #31 mix is made ONLY by Fair-Rite. Another point about measuring common mode current. As you have observed, it varies along the line, simply because in the common mode circuit, the feedline is part of the antenna, and both voltage and current vary along the line conforming to wavelength relationships at the operating frequency. A good choke forces a current minimum at the point where it is inserted. How common mode current varies along the line depends on the quality of the choke, the electrical length of the outer conductor of the coax (VF~0.98), and how the shield is terminated on the other end (grounded or floating using a link coupled tuner). A choke is most useful at the antenna feedpoint (up in the air, or at the feed end of a vertical or other long wire), which tends to minimize common mode current all along the line, because it "disconnects" the feedline from the antenna. A choke at any other point is FAR less effective -- all it does force a current minimum at the point it is inserted, leaving the feedline connected to the antenna, allowing common mode current between the choke and the antenna, and coupling any noise current to the antenna. For this reason, the first choke in any system should ALWAYS be at the antenna IF the antenna is matched to the feedline. The power handling of my chokes are ONLY applicable if the feedline is matched at the point where they are inserted. A choke inserted into a poorly matched or un-matched line is much more likely to overheat and fail. Dissipation (heating) is addressed in the 2018 Cookbook. 73, Jim K9YC From esteptony at gmail.com Thu Sep 3 12:06:07 2020 From: esteptony at gmail.com (Tony Estep) Date: Thu, 3 Sep 2020 11:06:07 -0500 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> Message-ID: On Tue, Sep 1, 2020 at 11:21 AM Wayne Burdick wrote: > ...This past few weeks has been very difficult for California and the Bay > Area in particular....forests all over the West vulnerable...We had > employees evacuated due to fires burning....air quality has been > horrendous... =============================== The situation in the areas near and around the fires in California is dreadful, although apparently improving some in the past days. My daughter-in-law is a grad student at UC Davis (long way from Watsonville, but threatened by a different fire); her apartment complex was on evacuation alert for two weeks. The air was so full of smoke that they couldn't run the AC, with daytime temperatures of 104 degrees. And they were relatively fortunate, because the eastern edge of the fire that was threatening them eventually was controlled, and the fire moved northward. The smoke from that fire reportedly streamed east as far as Indiana. There are fires in spots all the way from Bakersfield to Mendocino, an area as big as some states. Much of California is a huge patch of dry tinder, for the reasons Wayne pointed out in his post, and any lighting strike, any sparking power line, any cigarette butt can set off a blaze that threatens life and property on a mass scale. Viewed in perspective, the delivery schedule of the K4 is a minor issue compared to the widespread havoc that these fires have engendered. 73, Tony KT0NY From idarack at gmail.com Thu Sep 3 12:18:34 2020 From: idarack at gmail.com (Irwin Darack) Date: Thu, 3 Sep 2020 12:18:34 -0400 Subject: [Elecraft] [GoFRC] Elecraft K3s Second Receiver for sale In-Reply-To: <16310FA147C0914F.28345@groups.io> References: <16310FA147C0914F.28345@groups.io> Message-ID: The 2nd Receiver has been sold. Thanks, Irwin KD3TB On Wed, Sep 2, 2020 at 3:55 PM Irwin Darack via groups.io wrote: > I forgot to add that I have the Sub Receiver Installation Manual > > Irwin KD3TB > > On Wed, Sep 2, 2020 at 3:28 PM Irwin Darack wrote: > >> I have an Elecraft K3s KRX3A, Second Receiver for Sale. >> >> It contains the >> >> - Installed in the Sub Receiver are the KRX3A Main Circuit Board, >> Mixer Board, KNB3 Board & KFL3A-2.7 Filter >> - KSYN3A Synthesizer >> - Auxiliary DSP Circuit Board >> - Sub In Board >> - Sub Out Board >> >> I do not have the TMP Cable with the BNC Connector. This can be ordered >> from Elecraft (E850344 TMP-BNC Cable Bag). >> >> Asking $700 which includes free shipping to CON USA. >> >> Please contact me off the reflector at IDarack(at)gmail.com >> >> -- >> Irwin KD3TB >> >> >> > > -- > Irwin KD3TB > > > > > _._,_._,_ > > > ------------------------------ > > > Groups.io Links: > > > > > > > > You receive all messages sent to this group. > > > > > > > > > > > > View/Reply Online (#33497) | > > > > > > Reply To Sender > > > > > | Reply To Group > > > > > > > > > | > > > > > > > > Mute This Topic > > > > > > | New Topic > > > > > > > > > > > > > > Your Subscription | > > Contact Group Owner | > > > > Unsubscribe > > > > [idarack at gmail.com] > > > _._,_._,_ > > > > > -- Irwin KD3TB From johnae5x at gmail.com Thu Sep 3 13:58:37 2020 From: johnae5x at gmail.com (John Harper) Date: Thu, 3 Sep 2020 12:58:37 -0500 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? Message-ID: As someone who has one of these radios on order, I'd like to know if this is fake news or true fact: "This rig is copied from the KX-3. I was told this from a reliable source inside Elecraft." Source: https://forums.qrz.com/index.php?threads/lab599-discovery-tx-500.683461/page-2 The radio in question is described here: https://lab599.com/ Comments from Elecraft especially welcome. TNX/73, John AE5X https://ae5x.blogspot.com From g4gnx at g4gnx.com Thu Sep 3 14:26:33 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Thu, 03 Sep 2020 18:26:33 +0000 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? In-Reply-To: References: Message-ID: Malwarebytes reports the link to the radio as insecure with a Trojan, so I can't see it. 73, Alan. G4GNX ------ Original Message ------ From: "John Harper" To: "Elecraft list" Sent: 03/09/2020 18:58:37 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? >As someone who has one of these radios on order, I'd like to know if this >is fake news or true fact: > >"This rig is copied from the KX-3. I was told this from a reliable source >inside Elecraft." > >Source: >https://forums.qrz.com/index.php?threads/lab599-discovery-tx-500.683461/page-2 > >The radio in question is described here: >https://lab599.com/ > >Comments from Elecraft especially welcome. >TNX/73, > >John AE5X >https://ae5x.blogspot.com >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.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 frantz at pwpconsult.com Thu Sep 3 14:30:15 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Thu, 3 Sep 2020 14:30:15 -0400 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? In-Reply-To: Message-ID: It is certainly not a clone. It draws more RX current. It is a thinner. The panadapter is built in. I didn't spend enough time looking at it to form a judgement other than it appeals to the same uses as the KX3 and is not a clone. 73 Bill AE6JV On 9/3/20 at 1:58 PM, johnae5x at gmail.com (John Harper) wrote: >As someone who has one of these radios on order, I'd like to know if this >is fake news or true fact: > >"This rig is copied from the KX-3. I was told this from a reliable source >inside Elecraft." > >Source: >https://forums.qrz.com/index.php?threads/lab599-discovery-tx-500.683461/page-2 > >The radio in question is described here: >https://lab599.com/ > >Comments from Elecraft especially welcome. >TNX/73, > >John AE5X >https://ae5x.blogspot.com --------------------------------------------------------------------------- Bill Frantz | "I wish there was a knob on the TV to turn up the 408-348-7900 | intelligence. There's a knob called "brightness", but www.pwpconsult.com | it doesn't work. -- Gallagher From d.cutter at ntlworld.com Thu Sep 3 14:47:17 2020 From: d.cutter at ntlworld.com (CUTTER DAVID) Date: Thu, 3 Sep 2020 19:47:17 +0100 (BST) Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: <27b0212e-0952-664b-15bb-1e7060fb33ab@audiosystemsgroup.com> References: <952786193.416421.1599132071861@mail2.virginmedia.com> <27b0212e-0952-664b-15bb-1e7060fb33ab@audiosystemsgroup.com> Message-ID: <556855713.432373.1599158837732@mail2.virginmedia.com> Hi Jim Thanks for the new link. I must say we made several big chokes using the "old" method and our analyser wasn't good enough to measure the common mode impedance, so our conclusion was they were all above the analyser limit of several thousand ohms. I'm about to make a single core choke, so I'll take a look at the new info. 73 David G3UNA > On 03 September 2020 at 17:05 Jim Brown wrote: > > > On 9/3/2020 4:21 AM, CUTTER DAVID via Elecraft wrote: > > I use K9YC-style chokes, eg several turns on 240-31 core, or, if it's really bad, several turns on several cores using 7" diameter turns (from memory, check his cookbook). I'm told this is cheaper and better than anything you can buy. Of course I know nothing about your layout but it has always helped me to ground the coax before it comes into the house. > > Hi David, > > Note that, based on extensive research in 2017 and 2018, I no longer > recommend the older style of choke that you're using, and I revised the > RFI tutorial to reflect that. I published both that revision and the new > Cookbook late in 2018. > > k9yc.com/publish.htm > > The problem with the older style chokes (multiple turns of coax on > multiple #31 cores) is that 1) any "scrambling" of the winding reduces > choking impedance, and 2) variations in winding style (diameter, > spacing) make the chokes non-repeatable. > > The new choke designs ARE repeatable, AND take into account the wide > manufacturing tolerances of all ferrite parts, which can significantly > affect the choking impedance and where the chokes are tuned. The work I > did in 2017 and 2018 included characterizing nearly 200 #31 cores > obtained from multiple vendors over about ten years, selecting cores at > the limits of those tolerances, winding and measuring hundreds of chokes > on those cores, tabulating the results, and making recommendations for > each band and each transmission line type based on worst case results > for each design. Chokes wound following the new 2018 Cookbook should > provide at least the specified response on any #31 core you buy. Note > that #31 mix is made ONLY by Fair-Rite. > > Another point about measuring common mode current. As you have observed, > it varies along the line, simply because in the common mode circuit, the > feedline is part of the antenna, and both voltage and current vary along > the line conforming to wavelength relationships at the operating > frequency. A good choke forces a current minimum at the point where it > is inserted. How common mode current varies along the line depends on > the quality of the choke, the electrical length of the outer conductor > of the coax (VF~0.98), and how the shield is terminated on the other end > (grounded or floating using a link coupled tuner). > > A choke is most useful at the antenna feedpoint (up in the air, or at > the feed end of a vertical or other long wire), which tends to minimize > common mode current all along the line, because it "disconnects" the > feedline from the antenna. A choke at any other point is FAR less > effective -- all it does force a current minimum at the point it is > inserted, leaving the feedline connected to the antenna, allowing common > mode current between the choke and the antenna, and coupling any noise > current to the antenna. > > For this reason, the first choke in any system should ALWAYS be at the > antenna IF the antenna is matched to the feedline. The power handling of > my chokes are ONLY applicable if the feedline is matched at the point > where they are inserted. A choke inserted into a poorly matched or > un-matched line is much more likely to overheat and fail. Dissipation > (heating) is addressed in the 2018 Cookbook. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to d.cutter at ntlworld.com From n1rj at roadrunner.com Thu Sep 3 14:51:57 2020 From: n1rj at roadrunner.com (Roger D Johnson) Date: Thu, 3 Sep 2020 14:51:57 -0400 Subject: [Elecraft] S-meter reading at 100kHz Message-ID: <18c17539-df17-3b47-9198-23e5c0fe52c8@roadrunner.com> For those of you that have the KBPF3 100-400 kHz modification: What is your no-signal S meter reading at 100 kHz? Do you have the 220 Ufd polymer capacitor installed? Thanks, Roger From billamader at gmail.com Thu Sep 3 14:56:37 2020 From: billamader at gmail.com (K8TE) Date: Thu, 3 Sep 2020 11:56:37 -0700 (MST) Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: <9c8caa39-2aaf-8040-6301-d648e065f9e9@ncn.net> References: <9c8caa39-2aaf-8040-6301-d648e065f9e9@ncn.net> Message-ID: <1599159397374-0.post@n2.nabble.com> That is not true, except at full power. The manual clearly states power levels at 10:1, 5:1, and 4:1 VSWR's for different frequency ranges. RTFM is a wonderful acronym to follow. I'm always surprised to read "I think..." "I recall..." and similar posts to answer a poster's question. Most of us are U.S.A. males, no offense to those who aren't. As such, our DNA has been irradiated by past (not Cycle 24) solar cycles and we no long see the need to read manuals. A friend of mine bought an IC-7300 because he could operate it without reading the manual. He has since read some of the manual and uses features that make his signal (usually weak with a 12 ft. high antenna) more copyable. I am working on his further conversion. May the mask be with you! (COVID-19) 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From ghyoungman at gmail.com Thu Sep 3 15:00:29 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Thu, 3 Sep 2020 15:00:29 -0400 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? In-Reply-To: References: Message-ID: <5D365F05-144E-4EDE-9AF7-1E0CBC1D183C@gmail.com> There are going to be a lot of nice little radios. This may be a really good radio. Do you know that? I don?t. Personally, I wouldn?t touch this thing with a 10 ft pole. No battery; no ATU; unknown specs; unknown, if any, support; non-standard connectors that won?t fit anything else; and on. It looks ?cool?, and that will certainly appeal to some. But it?s more than the radio that has to be carried in the end, and doesn?t come from a trusted source with a track record. Will you be able to read the display in the sunlight? Grant NQ5T > On Sep 3, 2020, at 2:30 PM, Bill Frantz wrote: > > It is certainly not a clone. It draws more RX current. It is a thinner. The panadapter is built in. > > I didn't spend enough time looking at it to form a judgement other than it appeals to the same uses as the KX3 and is not a clone. > > 73 Bill AE6JV > > On 9/3/20 at 1:58 PM, johnae5x at gmail.com (John Harper) wrote: > >> As someone who has one of these radios on order, I'd like to know if this >> is fake news or true fact: >> >> "This rig is copied from the KX-3. I was told this from a reliable source >> inside Elecraft." >> >> Source: >> https://forums.qrz.com/index.php?threads/lab599-discovery-tx-500.683461/page-2 >> From josh at voodoolab.com Thu Sep 3 15:03:14 2020 From: josh at voodoolab.com (Josh Fiden) Date: Thu, 3 Sep 2020 12:03:14 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <5dc65a8e-742e-06da-72b8-26779b4b6dd2@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> <27350916-674a-f352-9988-8374d38b3525@gmail.com> <24baca6c-3da3-13a4-7f8e-5c16866e2e6a@gmail.com> <5dc65a8e-742e-06da-72b8-26779b4b6dd2@gmail.com> Message-ID: <22A4238D-7677-457D-BC6F-73528DE520D4@voodoolab.com> No. At low frequencies hysteresis loss dominates. Soft ferrites have high resistivity. Eddy currents increase with frequency but 160m is still fairly low. In SMPS transformer design we look at applied volt*seconds. When the applied v*s goes up, as would be the case with high SWR, you push further out the BH curve increasing hysteresis loss. With each cycle, the area inside the BH curve determines the loss (heating). As you approach the horizontal part of the curve (saturation), inductance collapses and the winding looks like a short. Same if core hits Curie temp then mag domains can no longer be aligned. Soft ferrites are not permanent magnets, they are NOT in fixed alignment. Magnetic domains are flopping around with the applied field. Hope this clarifies something. Hihi 73 Josh W6XU Sent from my iPad > On Sep 2, 2020, at 10:58 PM, Adrian wrote: > > core heating is affected only by the AC (induced eddy *currents*) content of the signal. From josh at voodoolab.com Thu Sep 3 15:10:03 2020 From: josh at voodoolab.com (Josh Fiden) Date: Thu, 3 Sep 2020 12:10:03 -0700 Subject: [Elecraft] my KPA1500 and 160M In-Reply-To: <4239f1cf-4c3b-becc-1271-776ef98e6592@gmail.com> References: <1398940966.1112842.1598972428893@mail.yahoo.com> <837da847-636b-3ba7-5e49-eaac2f1c1360@gmail.com> <15baa396-6ebb-b0fa-f153-b0b938eb02b4@gmail.com> <1bd5f971-da07-8300-55c6-99e145934574@gmail.com> <5681edc0-ead5-f910-2309-b715bb98bc98@gmail.com> <22766998-4b16-ec26-ae1d-b28bf45d4c64@gmail.com> <27350916-674a-f352-9988-8374d38b3525@gmail.com> <24baca6c-3da3-13a4-7f8e-5c16866e2e6a@gmail.com> <4239f1cf-4c3b-becc-1271-776ef98e6592@gmail.com> Message-ID: <6D72D908-8558-433D-B197-9B0DBC7E3591@voodoolab.com> For safety compliance (UL, IEC, etc.) soft ferrites are considered a conductor. All insulation requirements apply for clearance & creepage. 73, Josh W6XU Sent from my iPad > On Sep 2, 2020, at 11:18 PM, Adrian wrote: > > They usually stick to using a thin non metallic insulator with good insulation properties, otherwise known as a true dielectric. From rick.nk7i at gmail.com Thu Sep 3 15:23:04 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Thu, 3 Sep 2020 12:23:04 -0700 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: <1599159397374-0.post@n2.nabble.com> References: <9c8caa39-2aaf-8040-6301-d648e065f9e9@ncn.net> <1599159397374-0.post@n2.nabble.com> Message-ID: <2b92944f-c35b-2bc0-6dad-482ce349335b@gmail.com> Being able to use a without reading the manual is actually one of my personal tests of the user interface.? Jump in, see how it plays and what is presented to make changes if needed. The K3 easily passes that test (former Kenwood user; Elecraft is similar in format), HOWEVER that is on the surface only.? One must read through the manual (a few times preferably) to get into the menu settings (only one layer deep) and the reasons for them, when to apply them.? An annual or topical review can be done in personal down time, to keep the meat memory cells active.? And even then, something new may 'appear' in the text and learning happens. Then for reading dessert, read the firmware update statements as a few things are added and others change slightly over time since the manual was created. I also have a 7300 (for the RV) and it's not as UI friendly to me but is a convoluted series of menus to alter what should be a simple change; so it's what one is used to seeing, in part.? Some of that is cross-cultural phrasing, some of it, is a lesser UI (in my opinion). 73, Rick NK7I K3, P3, KAT500, KPA500, KPA1500, investments in quality. On 9/3/2020 11:56 AM, K8TE wrote: > RTFM is a wonderful acronym to follow. I'm always surprised to read "I > think..." "I recall..." and similar posts to answer a poster's question. > Most of us are U.S.A. males, no offense to those who aren't. As such, our > DNA has been irradiated by past (not Cycle 24) solar cycles and we no long > see the need to read manuals. > > A friend of mine bought an IC-7300 because he could operate it without > reading the manual. He has since read some of the manual and uses features > that make his signal (usually weak with a 12 ft. high antenna) more > copyable. I am working on his further conversion. > From wa2eio at optonline.net Thu Sep 3 15:41:11 2020 From: wa2eio at optonline.net (Ron Manfredi) Date: Thu, 3 Sep 2020 15:41:11 -0400 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? In-Reply-To: <5D365F05-144E-4EDE-9AF7-1E0CBC1D183C@gmail.com> References: <5D365F05-144E-4EDE-9AF7-1E0CBC1D183C@gmail.com> Message-ID: It is another in an ever-growing line of low-power SDR transceivers. It is carried by Ham Radio Outlet, (they project mid-September delivery) is FCC approved, and will have repair facilities in the U.S.??? There are some video reviews of it, along with a Groups.io page, and like almost everything else, it has some good points and somebad points and some missing features.?? It remains to be seen as to how well it will sell.?? I don't see it as a direct competitor to the KX series though. Ron? WA2EIO On 9/3/2020 3:00 PM, Grant Youngman wrote: > There are going to be a lot of nice little radios. This may be a really good radio. Do you know that? I don?t. > > Personally, I wouldn?t touch this thing with a 10 ft pole. No battery; no ATU; unknown specs; unknown, if any, support; non-standard connectors that won?t fit anything else; and on. It looks ?cool?, and that will certainly appeal to some. But it?s more than the radio that has to be carried in the end, and doesn?t come from a trusted source with a track record. Will you be able to read the display in the sunlight? > > Grant NQ5T > >> On Sep 3, 2020, at 2:30 PM, Bill Frantz wrote: >> >> It is certainly not a clone. It draws more RX current. It is a thinner. The panadapter is built in. >> >> I didn't spend enough time looking at it to form a judgement other than it appeals to the same uses as the KX3 and is not a clone. >> >> 73 Bill AE6JV >> >> On 9/3/20 at 1:58 PM, johnae5x at gmail.com (John Harper) wrote: >> >>> As someone who has one of these radios on order, I'd like to know if this >>> is fake news or true fact: >>> >>> "This rig is copied from the KX-3. I was told this from a reliable source >>> inside Elecraft." >>> >>> Source: >>> https://forums.qrz.com/index.php?threads/lab599-discovery-tx-500.683461/page-2 >>> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 DF6PA at darc.de Thu Sep 3 15:48:30 2020 From: DF6PA at darc.de (Stephan Forth) Date: Thu, 03 Sep 2020 21:48:30 +0200 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? In-Reply-To: <5D365F05-144E-4EDE-9AF7-1E0CBC1D183C@gmail.com> References: <5D365F05-144E-4EDE-9AF7-1E0CBC1D183C@gmail.com> Message-ID: <430430C6-FA1D-4C50-A374-833303BF9D17@darc.de> The connectors are well known GX16/12 connectors which are used in the aviation market. 73, Stephan Am 3. September 2020 21:00:29 MESZ schrieb Grant Youngman : >There are going to be a lot of nice little radios. This may be a really >good radio. Do you know that? I don?t. > >Personally, I wouldn?t touch this thing with a 10 ft pole. No battery; >no ATU; unknown specs; unknown, if any, support; non-standard >connectors that won?t fit anything else; and on. It looks ?cool?, and >that will certainly appeal to some. But it?s more than the radio that >has to be carried in the end, and doesn?t come from a trusted source >with a track record. Will you be able to read the display in the >sunlight? > >Grant NQ5T > >> On Sep 3, 2020, at 2:30 PM, Bill Frantz >wrote: >> >> It is certainly not a clone. It draws more RX current. It is a >thinner. The panadapter is built in. >> >> I didn't spend enough time looking at it to form a judgement other >than it appeals to the same uses as the KX3 and is not a clone. >> >> 73 Bill AE6JV >> >> On 9/3/20 at 1:58 PM, johnae5x at gmail.com (John Harper) wrote: >> >>> As someone who has one of these radios on order, I'd like to know if >this >>> is fake news or true fact: >>> >>> "This rig is copied from the KX-3. I was told this from a reliable >source >>> inside Elecraft." >>> >>> Source: >>> >https://forums.qrz.com/index.php?threads/lab599-discovery-tx-500.683461/page-2 >>> > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to df6pa at darc.de -- Stephan Forth DF6PA, DOK: K07 From w0agmike at gmail.com Thu Sep 3 16:01:06 2020 From: w0agmike at gmail.com (Mike Murray) Date: Thu, 3 Sep 2020 15:01:06 -0500 Subject: [Elecraft] Fwd: K3 FS - Reduced! In-Reply-To: References: Message-ID: The K3 has been sold. Mike - w0ag - *Now reduced to move - $1,050 + shipping!* Working on downsizing and selling my K3. $1,650 plus shipping. Prefer pickup but could meet within 100 miles. K3/100-F 1 K3 100W Xcvr. (Factory assembled) Serial #3746 KAT3-F 1 K3 ATU KXV3A 1 K3 RX Ant, IF Out & Xvrtr Int KRX3 1 K3 2nd RX KFL3A-400 1 K3 400 Hz, 8 pole filter (Main RX) KFL3A-2.8K 2 K3 2.8 kHz, 8 pole filter (Main/Sub RX) "Y-Box" by N6TV 15 pin parallel DE15 splitter and breakout box 73, Mike - W0AG From josh at voodoolab.com Thu Sep 3 16:05:20 2020 From: josh at voodoolab.com (Josh Fiden) Date: Thu, 3 Sep 2020 13:05:20 -0700 Subject: [Elecraft] K3 vs Icom UI (was: KPA-1500 SWR fault above 700-800 watts on 160m) In-Reply-To: <2b92944f-c35b-2bc0-6dad-482ce349335b@gmail.com> References: <9c8caa39-2aaf-8040-6301-d648e065f9e9@ncn.net> <1599159397374-0.post@n2.nabble.com> <2b92944f-c35b-2bc0-6dad-482ce349335b@gmail.com> Message-ID: I have a 9700 and since it looks nearly identical to 7300 assume the UI is similar. Intuitive? Not at all. K3 has lots of buried items but they are easy to find and mostly set once & forget. Only gripe would be all the abbreviations, but that was obviously limited by a practical display choice for it?s vintage. Improved UI with the big display is near the top of items that interest me about K4. 73 Josh W6XU Sent from my iPad > On Sep 3, 2020, at 12:23 PM, Rick Bates, NK7I wrote: > > I also have a 7300 (for the RV) and it's not as UI friendly to me but is a convoluted series of menus to alter what should be a simple change; so it's what one is used to seeing, in part. From Lyn at LNAINC.com Thu Sep 3 16:25:42 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Thu, 3 Sep 2020 15:25:42 -0500 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: References: <29E5B435-51D1-43CF-A98F-5D375BF27AB4@comcast.net> <2477417A09AA468F9D903E3702A3F02B@MININTMC1HLDC> Message-ID: <012701d68230$65baa460$312fed20$@LNAINC.com> Adrian - Comment on the BD #4116 "hybrid" balun: It's a combination 4:1 impedance transformer and 1:1 current balun all in one unit. I am using that on my 360' center fed EDZ (with 160' true ladder line and 15' coax) and it combines to give my KPA/KAT500 a match of 1.2:1 or less (mostly less) SWR across all bands 160-6m. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Adrian Sent: Wednesday, September 02, 2020 9:37 PM To: w5sum at comcast.net; Elecraft Subject: Re: [Elecraft] UPDATE KPA1500 on 160M Ok on that. I have good success with true OCF (not windom) antennas and Balun Designs 4:1 current baluns in the past. These days I just use apex high delta loops with direct feed via a lmr240 multi-wound toroid choke at feedpoint for great results. Bottom corner fed (vertically polarised), so feed-line length and losses are kept minimal . I find this type of antenna very quiet, and neighbour friendly in all respects. It would have been interesting to see how a 4116 performed on yours. On 3/9/20 11:37 am, w5sum at comcast.net wrote: > 4114T was the BD Balun model #. I'm not putting down there product at > all. When strictly using the ATU in the K3 it matched wonderfully. > The fly in the buttermilk was when the KPA1500 was thrown into the mix. > > Ronnie > ______________________________________________________________ \ From w4sc at windstream.net Thu Sep 3 16:29:20 2020 From: w4sc at windstream.net (w4sc) Date: Thu, 3 Sep 2020 16:29:20 -0400 Subject: [Elecraft] 2 different 144MHz transveters and CAT selection Message-ID: <81.28.24470.F12515F5@smtp02.aqua.bos.sync.lan> Henk, I looked at this issue and it is a K3/K3S issue. I was able to setup 2 transverters (XV1 and XV2) on the same band and switch between them when the band change was initiated from the K3 front panel. When a frequency is sent via RS232 connection, it appears the K3 wants to determine what band it should be on determined from the frequency. It begins this check without checking to determine if it does have a correct band already selected. The checking would appear to start with XV1, finding a ?match? then switching to that band (XV1), even when XV2 is selected previously, and the frequency is correct. This is from my observation, and may be over simplified. The only solution I have determined is to access the config menu and turn XV1 OFF. XV2 will then be the first match for the frequency sent, and thus selected. I verified this issue using the RFSpace SDR-IQ and SpectraVue s/w, and in the K3 both XV1 and XV2 set for the 1296 band. 73 de Ben W4SC Sent from Mail for Windows 10 From k7im at icloud.com Thu Sep 3 16:45:13 2020 From: k7im at icloud.com (Michael K Bottles) Date: Thu, 3 Sep 2020 13:45:13 -0700 Subject: [Elecraft] UPDATE KPA1500 on 160M In-Reply-To: <012701d68230$65baa460$312fed20$@LNAINC.com> References: <012701d68230$65baa460$312fed20$@LNAINC.com> Message-ID: <4BC0C3BF-105D-4E6C-A6E0-5199A78FAF1A@icloud.com> I am using the same unit as Lyn (BD4116) on a center fed 250? doublet Inverted Vee with about 50 feet of 600 ohm open ladder line and about 15 feet of 50 ohm coax. The KAT500 matches all bands except 6 to 1:1. 6 is matched to 1.3:1. I have been told by some that the hybrid unit is worthless, but I am happy with its performance. (However truth be known although licensed since 1965 I am a casual ham, just a fun side hobby for me. Not a serious contest?er or DX?er. I have a SteppIR DB-18E on a MA-770 so I use the doublet mainly on 160 & 80/75. Cheers, Kim - K7IM Sent from my iPad > On Sep 3, 2020, at 13:26, Lyn Norstad wrote: > > ?Adrian - > > Comment on the BD #4116 "hybrid" balun: > > It's a combination 4:1 impedance transformer and 1:1 current balun all in one unit. > > I am using that on my 360' center fed EDZ (with 160' true ladder line and 15' coax) and it combines to give my KPA/KAT500 a match of 1.2:1 or less (mostly less) SWR across all bands 160-6m. > > 73 > Lyn, W0LEN > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Adrian > Sent: Wednesday, September 02, 2020 9:37 PM > To: w5sum at comcast.net; Elecraft > Subject: Re: [Elecraft] UPDATE KPA1500 on 160M > > Ok on that. I have good success with true OCF (not windom) antennas and > Balun Designs 4:1 current baluns in the past. > > These days I just use apex high delta loops with direct feed via a > lmr240 multi-wound toroid choke at feedpoint for great results. > > Bottom corner fed (vertically polarised), so feed-line length and losses > are kept minimal . I find this type of antenna very quiet, > > and neighbour friendly in all respects. > > > It would have been interesting to see how a 4116 performed on yours. > > >>> On 3/9/20 11:37 am, w5sum at comcast.net wrote: >> 4114T was the BD Balun model #. I'm not putting down there product at >> all. When strictly using the ATU in the K3 it matched wonderfully. >> The fly in the buttermilk was when the KPA1500 was thrown into the mix. >> Ronnie > ______________________________________________________________ > \ > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k7im at icloud.com From johnae5x at gmail.com Thu Sep 3 18:24:11 2020 From: johnae5x at gmail.com (John Harper) Date: Thu, 3 Sep 2020 17:24:11 -0500 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? Message-ID: Can you provide a link to the Groups.io page - I haven't been able to find it. TNX/73, John AE5X https://ae5x.blogspot.com Ron WA2EIO wrote: >There >are some video reviews of it, along with a Groups.io page, From wa2eio at optonline.net Thu Sep 3 18:43:54 2020 From: wa2eio at optonline.net (Ron Manfredi) Date: Thu, 3 Sep 2020 18:43:54 -0400 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? In-Reply-To: References: Message-ID: <8a83fc9a-4b3f-bbb4-1e1e-941ed8cd6b25@optonline.net> Sorry, I got another group I have been watching confused with the TX-500, which does NOT have a groups.io presence. Ron?? WA2EIO On 9/3/2020 6:24 PM, John Harper wrote: > Can you provide a link to the Groups.io page - I haven't been able to find > it. > > TNX/73, > > John AE5X > https://ae5x.blogspot.com > > Ron WA2EIO wrote: > >> There >> are some video reviews of it, along with a Groups.io page, > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w5sum at comcast.net Thu Sep 3 18:55:39 2020 From: w5sum at comcast.net (Ronnie Hull) Date: Thu, 3 Sep 2020 17:55:39 -0500 Subject: [Elecraft] K3 and 2M Message-ID: <3638A0DB-28B1-4455-A172-09B9973E22B7@comcast.net> Recently I purchased a 2M module with the ref osc board already in it. I had this installed in my 2nd K3 by a very competent local ham When going to 2M it gets a ?Freq Error? on the display and neither rx?s or tx?s Has anyone seen this error before? Thanks in advance Ronnie Sent from my iPhone From kwroberson at yahoo.com Thu Sep 3 19:48:46 2020 From: kwroberson at yahoo.com (Ken Roberson) Date: Thu, 3 Sep 2020 23:48:46 +0000 (UTC) Subject: [Elecraft] K4 References: <141309766.27904.1599176926392.ref@mail.yahoo.com> Message-ID: <141309766.27904.1599176926392@mail.yahoo.com> Hello all Will the K4 have an input for a 10mhz GPS reference Thanks agn 73 Ken K5DNL From n6kr at elecraft.com Thu Sep 3 19:50:55 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 3 Sep 2020 16:50:55 -0700 Subject: [Elecraft] K4 In-Reply-To: <141309766.27904.1599176926392@mail.yahoo.com> References: <141309766.27904.1599176926392@mail.yahoo.com> Message-ID: <12F1739A-B78D-423B-BBCA-7673ADF31DDB@elecraft.com> Yes. Wayne N6KR ---- elecraft.com > On Sep 3, 2020, at 4:48 PM, Ken Roberson via Elecraft wrote: > > ?Hello all > Will the K4 have an input for a 10mhz GPS reference > > Thanks agn 73 Ken K5DNL > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 billamader at gmail.com Thu Sep 3 19:59:27 2020 From: billamader at gmail.com (K8TE) Date: Thu, 3 Sep 2020 16:59:27 -0700 (MST) Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: <2b92944f-c35b-2bc0-6dad-482ce349335b@gmail.com> References: <9c8caa39-2aaf-8040-6301-d648e065f9e9@ncn.net> <1599159397374-0.post@n2.nabble.com> <2b92944f-c35b-2bc0-6dad-482ce349335b@gmail.com> Message-ID: <1599177567778-0.post@n2.nabble.com> I do the same Rick. However, when new firmware comes out, I update my manuals appropriately. Elecraft allows that, unlike Icom, Kenwood, or Yaesu. I wonder why? Refreshing my own "firmware" is much more challenging, especially for things not refreshed by use. Many questions on this reflector are already answered in the Elecraft manuals. Watching my P3, I find many, many SSB signals over-driven with, I'll bet, ALC way out of range, even on an occasional Elecraft rig. When I send them a screenshot, or mention it on-the-air, frequently, the operator can't find the ALC reading. RTFM! I'm hoping the lightning stays away (for a change) during this weekend's QSO parties. 73, Bill, K8TE -- Sent from: http://elecraft.365791.n2.nabble.com/ From thegoeckel at gmail.com Thu Sep 3 19:58:52 2020 From: thegoeckel at gmail.com (Fred) Date: Thu, 3 Sep 2020 19:58:52 -0400 Subject: [Elecraft] Wanted to buy - KSB2 - KD8ZYD Message-ID: Hi, Looking to buy a used (built) or unbuilt KSB2 for my just finished K2. Thanks and 73's - KD8ZYD -- Thanks, Fred From w1srd at yahoo.com Thu Sep 3 20:00:05 2020 From: w1srd at yahoo.com (Steve Dyer W1SRD) Date: Thu, 3 Sep 2020 17:00:05 -0700 Subject: [Elecraft] FS: Loaded K2/100 with N8BX Tuning Knob References: <4afeddf0-c55d-4679-f9dc-94b5468dbeeb.ref@yahoo.com> Message-ID: <4afeddf0-c55d-4679-f9dc-94b5468dbeeb@yahoo.com> See https://forums.qrz.com/index.php?threads/elecraft-k2-100-loaded-with-n8bx-knob.723247/ K2/100 KAF2 KSB2 KNB2 K160M Rare N8BX/73CNC Main Tuning Knob Includes: * Original top cover * All original manuals * RS-232 adapter cable * Spare base K2 replacement PA transistors * UnPCB Rework Eliminator boards * Black stainless screws for face plate (K2 racing stripes ) * Original knob * Counter probe I am original owner/builder. Completed in 2012. Complete A to B upgrade done during build. All rev B upgrades as of 2012 done including: * AF Gain Mod * Keying Mod * BFOMDKT * E850093 10M BPF, VFO/ALC Mod Kit * XFILMDKIT K2KSB2XTALS 14 matched filter crystals 2nd XFIL Tuning - SSB filter roll off * FWK2MDCIO K2 MCU FW 2.04; K2 IOC 1.09 * E850138 Temp Controlled PLL Reference Upgrade * K2ATOBKT * KPA100SHLDKT KPA100 Shield Upgrade * KPA100UPKT KPA100 Upgrade Kit Latest Firmware (MCU 2.04R, IOC 1.09) Aligned by W3FPR. Lightly used and in very good condition. Full output on all bands. 73, Steve W1SRD From w1srd at yahoo.com Thu Sep 3 20:05:12 2020 From: w1srd at yahoo.com (Steve Dyer W1SRD) Date: Thu, 3 Sep 2020 17:05:12 -0700 Subject: [Elecraft] Congrats to the Elecraft Team on K4 Ship References: Message-ID: Facing many headwinds the team got the first batch out the door with what looks to be the new platform for serious HF operators. Well done to everyone involved and looking forward to seeing this product evolve and improve. Shipping any product is a tremendous amount of work and the Elecraft team has done it many times. Rare indeed. 73/GL, Steve W1SRD From kg9hfrank at gmail.com Thu Sep 3 20:06:26 2020 From: kg9hfrank at gmail.com (Frank Krozel) Date: Thu, 3 Sep 2020 19:06:26 -0500 Subject: [Elecraft] Who purchased my KX3 In-Reply-To: References: Message-ID: <1AFF0083-A5DB-4AC1-9107-7976698AF958@gmail.com> I found the end plates! Send me my last email and I will send to you. -73- Frank KG9H kg9hfrank at gmail.com From nr4c at widomaker.com Thu Sep 3 21:20:37 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 3 Sep 2020 21:20:37 -0400 Subject: [Elecraft] K4 In-Reply-To: <141309766.27904.1599176926392@mail.yahoo.com> References: <141309766.27904.1599176926392@mail.yahoo.com> Message-ID: <15A61C0C-6137-4263-8D41-9D0738376DC7@widomaker.com> It has a 10MHz Ref input Sent from my iPhone ...nr4c. bill > On Sep 3, 2020, at 7:50 PM, Ken Roberson via Elecraft wrote: > > ?Hello all > Will the K4 have an input for a 10mhz GPS reference > > Thanks agn 73 Ken K5DNL > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w7tr at outlook.com Fri Sep 4 00:16:41 2020 From: w7tr at outlook.com (Todd KH2TJ) Date: Fri, 4 Sep 2020 04:16:41 +0000 Subject: [Elecraft] Is the Lab599 TX500 a "rip-off" of the KX3? In-Reply-To: References: Message-ID: Quite a bit of discussion of this rig on the SOTA reflector starting some time last year. Here's some reviews: https://swling.com/blog/tag/tx-500/ [https://s0.wp.com/i/blank.jpg] TX-500 | The SWLing Post Following TX-500 updates closely? I am following TX-500 updates very closely. Since I?m primarily a ?field? ham radio operator, the idea of a weather-proof, rugged, QRP transceiver is very appealing. Seriously?just take my money! Of course, being first and foremost a shortwave radio listener, I?m also very interested how the TX-500 might play on the broadcast bands in AM mode. swling.com Also search out OH8STN's videos on youtube. He's been playing around with this rig for a while now too. If I recall correctly, the Nevada distributor is located in Reno. He didn't have a radio at the time I visited his business. There's another new prototype QRP rig getting some attention coming out of China - search out FX-4C. I don't do much on facebook, but I did join his group to read up on the new rig. https://www.youtube.com/watch?v=NLIXoGVNfng&fbclid=IwAR25Uwm2k5rMtUVzgOTGxh-XnKIixI6m4WVLWsCRp4X05A3DtgLrRQLXRcM [https://i.ytimg.com/vi/NLIXoGVNfng/hqdefault.jpg] HF SSB Reception test FX-4C - YouTube A new type of ultra-small shortwave transceiver?Can be placed in shirt pockets and trouser pockets Receiving frequency range?1.6-30MHZ/(contain 50MHZ/Aviatio... www.youtube.com So far looks interesting. More so than than the TX-500. Just my opinion. Me, think I'll hang on to my KX2 ... 73, Todd KH2TJ ________________________________ As someone who has one of these radios on order, I'd like to know if this is fake news or true fact: "This rig is copied from the KX-3. I was told this from a reliable source inside Elecraft." Source: https://forums.qrz.com/index.php?threads/lab599-discovery-tx-500.683461/page-2 The radio in question is described here: https://lab599.com/ From k2vco.vic at gmail.com Fri Sep 4 02:26:19 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Fri, 4 Sep 2020 09:26:19 +0300 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: <27b0212e-0952-664b-15bb-1e7060fb33ab@audiosystemsgroup.com> References: <952786193.416421.1599132071861@mail2.virginmedia.com> <27b0212e-0952-664b-15bb-1e7060fb33ab@audiosystemsgroup.com> Message-ID: <03a7f4da-de68-71e2-17a4-8aac94d796c4@gmail.com> I had an interesting experience trying to use a balun in a very demanding situation. I'll describe it, and at the end I have a question. Antenna was a dipole with total length of 10m fed with approximately 480 ohm open-wire line. Line length was 10m. I was trying to use this antenna on 40m with a power of 1200w. The first attempt was to use a 5kw DX Engineering 1:4 balun in the shack between the open line and coax, feeding the coax with an unbalanced T-network tuner. There was a lot of RFI with computers, etc. in the shack. The antenna seemed to pick up a lot of local noise. During a period of contest operating, the balun overheated, causing soaring SWR and ultimately internal arcing. Next I added two capacitors in series with the line to tune out the reactance (the 1/4 wavelength line inverted the capacitive reactance at the feedpoint of the antenna making it inductive at the shack end). This eliminated the overheating (it ran a little warm), but the RFI problem remained. Then I rewired the balun to a 1:1 configuration. This seemed to help a little with the RFI. It made tuning easier. But the antenna was still noisy. At this point I had some really good luck and was able to purchase an old Johnson KW Matchbox, which is a link-coupled balanced tuner. I replaced the T-network tuner, the balun, and the series capacitors with this unit. The antenna is now MUCH quieter and RFI problems have been eliminated. The lesson I learned is that baluns don't work very well with high SWR, especially when the impedance is very reactive. And now for my question: did I permanently damage my balun when it overheated? If so, what is the mechanism of damage? I took it apart and didn't see any obvious signs. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 03/09/2020 19:05, Jim Brown wrote: > A choke inserted into a poorly > matched or un-matched line is much more likely to overheat and fail. > Dissipation (heating) is addressed in the 2018 Cookbook. > > 73, Jim K9YC From john at kk9a.com Fri Sep 4 07:21:09 2020 From: john at kk9a.com (john at kk9a.com) Date: Fri, 04 Sep 2020 06:21:09 -0500 Subject: [Elecraft] Elecraft] Congrats to the Elecraft Team on K4 Ship Message-ID: <20200904062109.Horde.E_MAfu-lcEbrZJxmW54EMAR@www11.qth.com> Where are you getting the information that the first batch of K4's have shipped? Yesterday's Elecraft stated the following: Our first K4s are set to ship the second week of September. Our plan to ship in late August changed with the CZU Lighning Complex. The fire is among the top 20 most destructive fires in California state history with more than 1,100 structures burned in Santa Cruz County. We have employees who had to evacuate and help family evacuate; and one employee who lost his home to the fire. John KK9A Steve Dyer W1SRD wrote: Facing many headwinds the team got the first batch out the door with what looks to be the new platform for serious HF operators. Well done to everyone involved and looking forward to seeing this product evolve and improve. Shipping any product is a tremendous amount of work and the Elecraft team has done it many times. Rare indeed. 73/GL, Steve W1SRD From jtmiller47 at gmail.com Fri Sep 4 08:11:33 2020 From: jtmiller47 at gmail.com (Jim Miller) Date: Fri, 4 Sep 2020 08:11:33 -0400 Subject: [Elecraft] KPA-1500 SWR fault above 700-800 watts on 160m In-Reply-To: <03a7f4da-de68-71e2-17a4-8aac94d796c4@gmail.com> References: <03a7f4da-de68-71e2-17a4-8aac94d796c4@gmail.com> Message-ID: <714D3159-3AF3-47D6-8022-A69ADB97706F@gmail.com> I?ve seen no mention of modeling and/or measurements performed on any of these antennas to see if they are within the match range of the KPA1500. Jim ab3cv On Sep 4, 2020, at 2:29 AM, Victor Rosenthal 4X6GP wrote: ?I had an interesting experience trying to use a balun in a very demanding situation. I'll describe it, and at the end I have a question. Antenna was a dipole with total length of 10m fed with approximately 480 ohm open-wire line. Line length was 10m. I was trying to use this antenna on 40m with a power of 1200w. The first attempt was to use a 5kw DX Engineering 1:4 balun in the shack between the open line and coax, feeding the coax with an unbalanced T-network tuner. There was a lot of RFI with computers, etc. in the shack. The antenna seemed to pick up a lot of local noise. During a period of contest operating, the balun overheated, causing soaring SWR and ultimately internal arcing. Next I added two capacitors in series with the line to tune out the reactance (the 1/4 wavelength line inverted the capacitive reactance at the feedpoint of the antenna making it inductive at the shack end). This eliminated the overheating (it ran a little warm), but the RFI problem remained. Then I rewired the balun to a 1:1 configuration. This seemed to help a little with the RFI. It made tuning easier. But the antenna was still noisy. At this point I had some really good luck and was able to purchase an old Johnson KW Matchbox, which is a link-coupled balanced tuner. I replaced the T-network tuner, the balun, and the series capacitors with this unit. The antenna is now MUCH quieter and RFI problems have been eliminated. The lesson I learned is that baluns don't work very well with high SWR, especially when the impedance is very reactive. And now for my question: did I permanently damage my balun when it overheated? If so, what is the mechanism of damage? I took it apart and didn't see any obvious signs. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . > On 03/09/2020 19:05, Jim Brown wrote: > A choke inserted into a poorly > matched or un-matched line is much more likely to overheat and fail. > Dissipation (heating) is addressed in the 2018 Cookbook. > 73, Jim K9YC ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jim at jtmiller.com From wa6usa at gmail.com Fri Sep 4 10:05:34 2020 From: wa6usa at gmail.com (Tom Muller) Date: Fri, 4 Sep 2020 07:05:34 -0700 Subject: [Elecraft] K3 External speakers Message-ID: Searched the archive however can't find info for speakers set to 2 and no sub receiver. Yesterday I got audio from both speakers, and today only one side is working. I have the correct adaptor and speakers are 8 Ohms unamplified. Everything checks good on the bench. Could something be wrong in the radio or something I'm missing in set up? I've read the manual and Cady book a few times each and can't seem to figure this out. Suggestions or advise Thanks From k5wa at comcast.net Fri Sep 4 11:05:33 2020 From: k5wa at comcast.net (K5WA) Date: Fri, 4 Sep 2020 10:05:33 -0500 Subject: [Elecraft] FS: Elecraft PR6 Preamp Message-ID: <03c501d682cc$d7242da0$856c88e0$@comcast.net> For those of you picking up legacy K3 rigs recently, you might want to consider this option. The PR6 was designed to help boost 10M and 6M signals as an add-on unit which plugs into the RX IN/OUT connections on the back of the K3 with supplied BNC connectors. There is a power connection and a control so that you can turn on the PR6 by simply pressing the RX ANT button on the front of the K3. Here is a link to the user's manual: https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf $60 or best offer, postpaid to lower 48. Please contact me off list at listed email. 73, Bob K5WA Houston, TX From jim at audiosystemsgroup.com Fri Sep 4 13:19:47 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 4 Sep 2020 10:19:47 -0700 Subject: [Elecraft] FS: Elecraft PR6 Preamp In-Reply-To: <03c501d682cc$d7242da0$856c88e0$@comcast.net> References: <03c501d682cc$d7242da0$856c88e0$@comcast.net> Message-ID: <011bec68-f4ff-1ada-2b2a-66f4e0fb64b6@audiosystemsgroup.com> On 9/4/2020 8:05 AM, K5WA wrote: > For those of you picking up legacy K3 rigs recently, you might want to > consider this option. The PR6 was designed to help boost 10M and 6M signals > as an add-on unit which plugs into the RX IN/OUT connections on the back of > the K3 with supplied BNC connectors. A good preamp is VERY important if you live or operate with relatively low RX noise on 12, 10, or 6M. For many of us, noise levels can vary a lot from day to day, at different times of day, and even as neighbors turn on/off their many noise sources. The PR6 preamp is a very good one. I've not used it -- I already owned an ARR GasFET preamp for 6M, which works well down to at least 12M, and used it at the RX Out/In patch point. When the newer version of the transverter was introduced for the K3S, I upgraded to it and loaned the ARR to a friend. The PR6 is a LOT cheaper than replacing the transverter board. :) My guess based on a lot of listening on 6M when my noise level is low is that the NF of the PR6 is within a fractional dB of the ARR GasFET -- in other words, quite good. 73, Jim K9YC From k5wa at comcast.net Fri Sep 4 14:02:50 2020 From: k5wa at comcast.net (K5WA) Date: Fri, 4 Sep 2020 13:02:50 -0500 Subject: [Elecraft] FS: Elecraft PR6 Preamp - SOLD Message-ID: <046701d682e5$9b41f100$d1c5d300$@comcast.net> My PR6 has been spoken for but I also received 3 additional offers to buy a PR6 so I would encourage anyone that wants to sell theirs, you should post an offer. I think you will get a reply rather quickly. From: K5WA Sent: Friday, September 4, 2020 10:06 AM To: 'Elecraft at mailman.qth.net' Subject: FS: Elecraft PR6 Preamp For those of you picking up legacy K3 rigs recently, you might want to consider this option. The PR6 was designed to help boost 10M and 6M signals as an add-on unit which plugs into the RX IN/OUT connections on the back of the K3 with supplied BNC connectors. There is a power connection and a control so that you can turn on the PR6 by simply pressing the RX ANT button on the front of the K3. Here is a link to the user's manual: https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf $60 or best offer, postpaid to lower 48. Please contact me off list at listed email. 73, Bob K5WA Houston, TX From rdewan at me.com Fri Sep 4 14:04:51 2020 From: rdewan at me.com (Rajiv Dewan) Date: Fri, 4 Sep 2020 14:04:51 -0400 Subject: [Elecraft] Elecraft PR6 Preamp - SOLD In-Reply-To: <046701d682e5$9b41f100$d1c5d300$@comcast.net> References: <046701d682e5$9b41f100$d1c5d300$@comcast.net> Message-ID: <3D3C9B08-9432-45EE-BBF5-086DAD1B85C8@me.com> I have one for sale as well. Same deal as Bob. Raj > On Sep 4, 2020, at 2:02 PM, K5WA wrote: > > My PR6 has been spoken for but I also received 3 additional offers to buy a > PR6 so I would encourage anyone that wants to sell theirs, you should post > an offer. I think you will get a reply rather quickly. > > > > From: K5WA > Sent: Friday, September 4, 2020 10:06 AM > To: 'Elecraft at mailman.qth.net' > Subject: FS: Elecraft PR6 Preamp > > > > For those of you picking up legacy K3 rigs recently, you might want to > consider this option. The PR6 was designed to help boost 10M and 6M signals > as an add-on unit which plugs into the RX IN/OUT connections on the back of > the K3 with supplied BNC connectors. There is a power connection and a > control so that you can turn on the PR6 by simply pressing the RX ANT button > on the front of the K3. Here is a link to the user's manual: > https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf > > > > > > $60 or best offer, postpaid to lower 48. > > Please contact me off list at listed email. > > > > 73, > > Bob K5WA > > Houston, TX > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n2rd at arrl.net From gthornton at thorntonmostullaw.com Fri Sep 4 14:10:15 2020 From: gthornton at thorntonmostullaw.com (George Thornton) Date: Fri, 4 Sep 2020 18:10:15 +0000 Subject: [Elecraft] FS: Elecraft PR6 Preamp - SOLD In-Reply-To: <046701d682e5$9b41f100$d1c5d300$@comcast.net> References: <046701d682e5$9b41f100$d1c5d300$@comcast.net> Message-ID: FYI they still sell the PR6-10 preamps new from Elecraft. I just bought one a month ago. I have the K3 and I have made some (but not all) of the conversions to K3s standards. My K3 is performing well. I have my eye on the new K4 but want to see some comparative performance test results before I buy. -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of K5WA Sent: Friday, September 4, 2020 11:03 AM To: Elecraft at mailman.qth.net Subject: Re: [Elecraft] FS: Elecraft PR6 Preamp - SOLD My PR6 has been spoken for but I also received 3 additional offers to buy a PR6 so I would encourage anyone that wants to sell theirs, you should post an offer. I think you will get a reply rather quickly. From: K5WA Sent: Friday, September 4, 2020 10:06 AM To: 'Elecraft at mailman.qth.net' Subject: FS: Elecraft PR6 Preamp For those of you picking up legacy K3 rigs recently, you might want to consider this option. The PR6 was designed to help boost 10M and 6M signals as an add-on unit which plugs into the RX IN/OUT connections on the back of the K3 with supplied BNC connectors. There is a power connection and a control so that you can turn on the PR6 by simply pressing the RX ANT button on the front of the K3. Here is a link to the user's manual: https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf $60 or best offer, postpaid to lower 48. Please contact me off list at listed email. 73, Bob K5WA Houston, TX ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to gthornton at thorntonmostullaw.com From wa6tla at icloud.com Fri Sep 4 14:11:11 2020 From: wa6tla at icloud.com (Elliott Lawrence) Date: Fri, 4 Sep 2020 11:11:11 -0700 Subject: [Elecraft] FS: Elecraft PR6 Preamp - SOLD In-Reply-To: <046701d682e5$9b41f100$d1c5d300$@comcast.net> References: <046701d682e5$9b41f100$d1c5d300$@comcast.net> Message-ID: <6A4282C9-C8D2-40B2-974A-8E15D2913F7C@icloud.com> Please contact me as I also have a PR6 for sale. 73 Elliott WA6TLA > On Sep 4, 2020, at 11:02 AM, K5WA wrote: > > My PR6 has been spoken for but I also received 3 additional offers to buy a > PR6 so I would encourage anyone that wants to sell theirs, you should post > an offer. I think you will get a reply rather quickly. > > > > From: K5WA > Sent: Friday, September 4, 2020 10:06 AM > To: 'Elecraft at mailman.qth.net' > Subject: FS: Elecraft PR6 Preamp > > > > For those of you picking up legacy K3 rigs recently, you might want to > consider this option. The PR6 was designed to help boost 10M and 6M signals > as an add-on unit which plugs into the RX IN/OUT connections on the back of > the K3 with supplied BNC connectors. There is a power connection and a > control so that you can turn on the PR6 by simply pressing the RX ANT button > on the front of the K3. Here is a link to the user's manual: > https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf > > > > > > $60 or best offer, postpaid to lower 48. > > Please contact me off list at listed email. > > > > 73, > > Bob K5WA > > Houston, TX > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wa6tla at icloud.com From k5mm.ronfreeman at gmail.com Fri Sep 4 14:42:41 2020 From: k5mm.ronfreeman at gmail.com (Ron Freeman) Date: Fri, 4 Sep 2020 13:42:41 -0500 Subject: [Elecraft] Elecraft PR6 Preamp - SOLD In-Reply-To: <3D3C9B08-9432-45EE-BBF5-086DAD1B85C8@me.com> References: <3D3C9B08-9432-45EE-BBF5-086DAD1B85C8@me.com> Message-ID: I have one available too. Same deal. k5mm/ron Sent from my iPad > On Sep 4, 2020, at 1:05 PM, Rajiv Dewan via Elecraft wrote: > > ?I have one for sale as well. > > Same deal as Bob. > > Raj > >> On Sep 4, 2020, at 2:02 PM, K5WA wrote: >> >> My PR6 has been spoken for but I also received 3 additional offers to buy a >> PR6 so I would encourage anyone that wants to sell theirs, you should post >> an offer. I think you will get a reply rather quickly. >> >> >> >> From: K5WA >> Sent: Friday, September 4, 2020 10:06 AM >> To: 'Elecraft at mailman.qth.net' >> Subject: FS: Elecraft PR6 Preamp >> >> >> >> For those of you picking up legacy K3 rigs recently, you might want to >> consider this option. The PR6 was designed to help boost 10M and 6M signals >> as an add-on unit which plugs into the RX IN/OUT connections on the back of >> the K3 with supplied BNC connectors. There is a power connection and a >> control so that you can turn on the PR6 by simply pressing the RX ANT button >> on the front of the K3. Here is a link to the user's manual: >> https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf >> >> >> >> >> >> $60 or best offer, postpaid to lower 48. >> >> Please contact me off list at listed email. >> >> >> >> 73, >> >> Bob K5WA >> >> Houston, TX >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n2rd 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 k5mm.ronfreeman at gmail.com From ed at w0yk.com Fri Sep 4 15:00:47 2020 From: ed at w0yk.com (Ed W0YK) Date: Fri, 04 Sep 2020 12:00:47 -0700 Subject: [Elecraft] FS: Elecraft PR6 Preamp - SOLD In-Reply-To: <046701d682e5$9b41f100$d1c5d300$@comcast.net> Message-ID: I have two PR10s (no 6m capability), like new in original boxes with accessories: $75 shipped USPS Priority Mail in CONUS.73,Ed W0YK -------- Original message --------From: K5WA Date: 9/4/20 11:02 (GMT-08:00) To: Elecraft at mailman.qth.net Subject: Re: [Elecraft] FS: Elecraft PR6 Preamp - SOLD My PR6 has been spoken for but I also received 3 additional offers to buy aPR6 so I would encourage anyone that wants to sell theirs, you should postan offer.? I think you will get a reply rather quickly. From: K5WA Sent: Friday, September 4, 2020 10:06 AMTo: 'Elecraft at mailman.qth.net' Subject: FS: Elecraft PR6 Preamp For those of you picking up legacy K3 rigs recently, you might want toconsider this option.? The PR6 was designed to help boost 10M and 6M signalsas an add-on unit which plugs into the RX IN/OUT connections on the back ofthe K3 with supplied BNC connectors.? There is a power connection and acontrol so that you can turn on the PR6 by simply pressing the RX ANT buttonon the front of the K3.? Here is a link to the user's manual:https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev_B.pdf $60 or best offer, postpaid to lower 48.Please contact me off list at listed email. 73,Bob K5WAHouston, TX______________________________________________________________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 ed at w0yk.com From atfu at gmx.de Fri Sep 4 16:39:50 2020 From: atfu at gmx.de (atfu) Date: Fri, 4 Sep 2020 22:39:50 +0200 Subject: [Elecraft] K2+KPA100 hi current and hi output Message-ID: Dear All, I gave a new home to a K2 + (KPA100+KAT100 in EC 2), ser#>5000. The K2 on its own is runnung fine. When I connect to the KPA+KAT I get HiCur warning (on initiating TX) on all bands with POW>10W. This also happens when I transmit into a dummy load. I measured the output from the dummyload with a DMM. There are only two values (depending on the dialled in watts): Below 10W = 38 VDC (= 14W) Above (I checked 20, 50, 80, 100W) = 129 VDC (= 160W!!) In other words, as soon as the KPA is activated, the output is 160W (according to my formula for converting VDC in W). The meter on the power supply (good for 25A) confirms that I draw about 20A above 10W in, apparently only limited by the slow 20A fuse in the line. Any ideas as to what may be wrong and where I should start? Many thanks in advance for your help! 73 de andre dm1aa From nr4c at widomaker.com Fri Sep 4 16:43:22 2020 From: nr4c at widomaker.com (Nr4c) Date: Fri, 4 Sep 2020 16:43:22 -0400 Subject: [Elecraft] K3 External speakers In-Reply-To: References: Message-ID: Press the button marked AFX. Otherwise there is no audio on the right channel without the Sub-Rec. Sent from my iPhone ...nr4c. bill > On Sep 4, 2020, at 10:08 AM, Tom Muller wrote: > > ?Searched the archive however can't find info for speakers set to 2 and no > sub receiver. Yesterday I got audio from both speakers, and today only one > side is working. I have the correct adaptor and speakers are 8 Ohms > unamplified. Everything checks good on the bench. Could something be wrong > in the radio or something I'm missing in set up? I've read the manual and > Cady book a few times each and can't seem to figure this out. Suggestions > or advise Thanks > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ab4iq at comcast.net Fri Sep 4 17:06:31 2020 From: ab4iq at comcast.net (Ed Pflueger) Date: Fri, 4 Sep 2020 16:06:31 -0500 Subject: [Elecraft] Elecraft PR6 Preamp - SOLD In-Reply-To: References: <3D3C9B08-9432-45EE-BBF5-086DAD1B85C8@me.com> Message-ID: <011a01d682ff$4b582eb0$e2088c10$@comcast.net> Me too. Ed AB4IQ ab4iq at comcast.net -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ron Freeman Sent: Friday, September 4, 2020 1:43 PM To: Elecraft at mailman.qth.net Subject: Re: [Elecraft] Elecraft PR6 Preamp - SOLD I have one available too. Same deal. k5mm/ron Sent from my iPad > On Sep 4, 2020, at 1:05 PM, Rajiv Dewan via Elecraft wrote: > > ?I have one for sale as well. > > Same deal as Bob. > > Raj > >> On Sep 4, 2020, at 2:02 PM, K5WA wrote: >> >> My PR6 has been spoken for but I also received 3 additional offers to >> buy a >> PR6 so I would encourage anyone that wants to sell theirs, you should >> post an offer. I think you will get a reply rather quickly. >> >> >> >> From: K5WA >> Sent: Friday, September 4, 2020 10:06 AM >> To: 'Elecraft at mailman.qth.net' >> Subject: FS: Elecraft PR6 Preamp >> >> >> >> For those of you picking up legacy K3 rigs recently, you might want >> to consider this option. The PR6 was designed to help boost 10M and >> 6M signals as an add-on unit which plugs into the RX IN/OUT >> connections on the back of the K3 with supplied BNC connectors. >> There is a power connection and a control so that you can turn on the >> PR6 by simply pressing the RX ANT button on the front of the K3. Here is a link to the user's manual: >> https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev >> _B.pdf >> >> >> >> >> >> $60 or best offer, postpaid to lower 48. >> >> Please contact me off list at listed email. >> >> >> >> 73, >> >> Bob K5WA >> >> Houston, TX >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net Please help support this >> email list: http://www.qsl.net/donate.html Message delivered to >> n2rd 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 > k5mm.ronfreeman at gmail.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ab4iq at comcast.net From wa6mse at arrl.net Fri Sep 4 17:29:37 2020 From: wa6mse at arrl.net (wa6mse at arrl.net) Date: Fri, 4 Sep 2020 14:29:37 -0700 Subject: [Elecraft] Fwd: K4 Manual? In-Reply-To: <46f8fdcb-a1d4-cac1-a42b-49f2fe3ba530@q.com> References: <46f8fdcb-a1d4-cac1-a42b-49f2fe3ba530@q.com> Message-ID: I see that Elecraft is just starting to ship K4s.? I am wondering when the manual will be available for download?? It would be nice start reading about the MANY functions of this radio prior to actually receiving it. Thanks 73 Nigel WA6MSE From w6jhb at me.com Fri Sep 4 17:46:26 2020 From: w6jhb at me.com (James Bennett) Date: Fri, 4 Sep 2020 14:46:26 -0700 Subject: [Elecraft] W1 Programming??? Message-ID: <4564FEDC-20E4-433A-ABFF-96BA8079B250@me.com> I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I?m fairly proficient in several other programming languages and am thinking that I might ?roll my own?, starting on the Mac. I know that this is a stretch, but has anyone done this? I know - hahahaha? OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? Jim / W6JHB From rosen.bruce at gmail.com Fri Sep 4 18:17:50 2020 From: rosen.bruce at gmail.com (K1FFX) Date: Fri, 4 Sep 2020 15:17:50 -0700 (MST) Subject: [Elecraft] K2+KPA100 hi current and hi output In-Reply-To: References: Message-ID: <1599257870067-0.post@n2.nabble.com> Hi, Andre - I wonder if it's a problem with blown D16 and D17 in the KPA100. If you follow this forum on-line at nabble.com, you can do a search for "D16" and see many postings on the topic. Good luck. - Bruce K1FFX ----- Bruce Rosen K1FFX K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 -- Sent from: http://elecraft.365791.n2.nabble.com/ From donwilh at embarqmail.com Fri Sep 4 18:29:22 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 4 Sep 2020 18:29:22 -0400 Subject: [Elecraft] K2+KPA100 hi current and hi output In-Reply-To: References: Message-ID: <07cad0dc-f7c8-2ebc-e1e7-2cf9e6f7c4ce@embarqmail.com> Andre, Do you have any power control? To check set the power to about 50 watts and do a TUNE. Measure the actual power output with an in-line wattmeter and a 50 ohm dummy load. If it still goes to 160 watts, you do not have any power control. The usual reason is the diodes D16 and D17 (1N5711 type) have been damaged by static coming in on the feedline. Replace those diodes and re-check. If that does not fix it, I can help with additional troubleshooting. 73, Don W3FPR On 9/4/2020 4:39 PM, atfu wrote: > Dear All, > > I gave a new home to a? K2 + (KPA100+KAT100 in EC 2), ser#>5000. The K2 > on its own is runnung fine. > > When I connect to the KPA+KAT I get HiCur warning (on initiating TX) on > all bands with POW>10W. This also happens when I transmit into a dummy > load. I measured the output from the dummyload with a DMM. There are > only two values (depending on the dialled in watts): > > Below 10W = 38 VDC (= 14W) > Above (I checked 20, 50, 80, 100W) = 129 VDC (= 160W!!) > > In other words, as soon as the KPA is activated, the output is 160W > (according to my formula for converting VDC in W). The meter on the > power supply (good for 25A) confirms that I draw about 20A above 10W in, > apparently only limited by the slow 20A fuse in the line. > From rjlawn at gmail.com Fri Sep 4 19:07:32 2020 From: rjlawn at gmail.com (Richard Lawn) Date: Fri, 4 Sep 2020 19:07:32 -0400 Subject: [Elecraft] PR6 preamp for sale Message-ID: I know longer need mine so it?s available to anyone who wanted the other one and missed out on it. $60 Happy holiday! Rick, W2JAZ -- Sent from Gmail Mobile From huntinhmb at coastside.net Fri Sep 4 19:41:48 2020 From: huntinhmb at coastside.net (Brian Hunt) Date: Fri, 4 Sep 2020 16:41:48 -0700 Subject: [Elecraft] K3 External speakers In-Reply-To: References: Message-ID: Set CONFIG:SPKRS=2. Same audio comes out of both external speakers. AFX makes some effects that can be less tiring. 73, Brian, K0DTJ From alan at wilcoxengineering.com Fri Sep 4 20:36:55 2020 From: alan at wilcoxengineering.com (Alan D. Wilcox) Date: Fri, 4 Sep 2020 20:36:55 -0400 Subject: [Elecraft] WTB: KVR3 digital voice recorder for K3 Message-ID: <8f90ca0d-dac2-13cd-f79b-e13f31ab20e8@wilcoxengineering.com> Hello, A good friend wants to buy three KVR3 boards for his several K3's ... Write to me off-board with price. Many thanks, Alan -- Alan D. Wilcox, W3DVX (K2-5373, K3-40, SKCC 22955) 570-916-9590 (cell, text) https://WilcoxEngineering.com http://www.eham.net/reviews/detail/6768 ... Elecraft Client Comments http://amazon.com/author/alandwilcox Williamsport, PA 17701 From w5rg at yahoo.com Fri Sep 4 20:40:37 2020 From: w5rg at yahoo.com (Bob Gibson) Date: Sat, 5 Sep 2020 00:40:37 +0000 (UTC) Subject: [Elecraft] TX MON References: <127737316.2567602.1599266437280.ref@mail.yahoo.com> Message-ID: <127737316.2567602.1599266437280@mail.yahoo.com> I have a Transmit Monitor with DCHF-2000 coupler and board up for sale with manual.I will ship for $170.00..please e-mail direct...Thanks ?? 73s Bob W5RG From kevinr at coho.net Fri Sep 4 20:57:20 2020 From: kevinr at coho.net (kevinr) Date: Fri, 4 Sep 2020 17:57:20 -0700 Subject: [Elecraft] W1 Programming??? In-Reply-To: <4564FEDC-20E4-433A-ABFF-96BA8079B250@me.com> References: <4564FEDC-20E4-433A-ABFF-96BA8079B250@me.com> Message-ID: <93d37f68-a0f4-fc80-f867-6665b3f5e985@coho.net> I just wrote a little code using Posix standards under Ubuntu with g++ for my compiler.? Looks like USB is treated as a normal stream of characters.? The most difficult part was finding my USB thumb drive in the file system.? Under Ubuntu it is in the /media folder.? Once I located it I was able to read from it, and write to it, using straightforward code.? The W1 wattmeter should react the same way.? Write a trap to catch the data packet then a little code to parse it however you like.? I did not know it would be so simple: open(), read(), write(), close(). Since Macs are running Linux, with enhancements, writing code to catch the wattmeter's data stream should not be difficult.? I assume you can send it commands too.? You will need to determine how a data packet is formed but that is part of the fun. ?? 73 and GL, ?????? Kevin.? KD5ONS On 9/4/20 2:46 PM, James Bennett via Elecraft wrote: > I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I?m fairly proficient in several other programming languages and am thinking that I might ?roll my own?, starting on the Mac. > > I know that this is a stretch, but has anyone done this? I know - hahahaha? OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? > > 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 kevinr at coho.net From n6tv at arrl.net Fri Sep 4 23:06:57 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Fri, 4 Sep 2020 20:06:57 -0700 Subject: [Elecraft] WTB: KVR3 digital voice recorder for K3 In-Reply-To: <8f90ca0d-dac2-13cd-f79b-e13f31ab20e8@wilcoxengineering.com> References: <8f90ca0d-dac2-13cd-f79b-e13f31ab20e8@wilcoxengineering.com> Message-ID: Please have your friend check *KDVR3 Digital Voice Recorder* indicate *quantity 3* in the box at the bottom of the Elecraft K3/K3S Options Interest Form: https://elecraft.com/pages/k3-k3s-options-interest-form Many other currently-unavailable K3/K3S options / upgrades are listed there too, such as the *KIO3B Upgrade Kit* (adds USB with virtual serial port and USB Sound Card). If Elecraft gets enough interest for any particular item, they will be motivated to place an order new boards. 73, Bob, N6TV On Fri, Sep 4, 2020 at 5:38 PM Alan D. Wilcox wrote: > Hello, > > A good friend wants to buy three KVR3 boards for his several K3's ... > > Write to me off-board with price. > > Many thanks, > > Alan > > -- > Alan D. Wilcox, W3DVX (K2-5373, K3-40, SKCC 22955) > 570-916-9590 (cell, text) > https://WilcoxEngineering.com > http://www.eham.net/reviews/detail/6768 ... Elecraft Client Comments > http://amazon.com/author/alandwilcox > Williamsport, PA 17701 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6tv at arrl.net > From ian.ls at hotmail.co.uk Sat Sep 5 10:06:23 2020 From: ian.ls at hotmail.co.uk (Ian Liston-Smith) Date: Sat, 5 Sep 2020 14:06:23 +0000 Subject: [Elecraft] New KX3 reverse voltage smoke Message-ID: Well I did it. Inadvertently got the +ve and -ve reversed. Loud buzz from PSU and smoke from KX3. Surely D6 in the volts input should just stop everything from working if the polarity is reversed? So I don't understand what has happened. I didn't actually switch it on so hopefully it isn't terminal and just enquires a new diode. If it is terminal, I'm really surprised it hasn't any protection. Ian, G4JQT?? From dhaines at bates.edu Sat Sep 5 10:17:31 2020 From: dhaines at bates.edu (David Haines) Date: Sat, 5 Sep 2020 10:17:31 -0400 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: References: Message-ID: Don't feel bad Ian.? I reversed the polarity from the power supply, too. ? After the smoke cleared and the smell went away, I called Elecraft and after a few questions, service said send in my KX3. They called in a couple days to thank me for sending the melted wire, but why did I send the KX3, which was fine??? They apologized, checked out the KX3,? and gave me a free replacement wire.? Great company! david,? KC1DNY On 9/5/2020 10:06 AM, Ian Liston-Smith wrote: > Well I did it. Inadvertently got the +ve and -ve reversed. Loud buzz from PSU and smoke from KX3. > > Surely D6 in the volts input should just stop everything from working if the polarity is reversed? So I don't understand what has happened. > > I didn't actually switch it on so hopefully it isn't terminal and just enquires a new diode. If it is terminal, I'm really surprised it hasn't any protection. > > Ian, G4JQT?? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 thegoeckel at gmail.com Sat Sep 5 11:13:48 2020 From: thegoeckel at gmail.com (Fred) Date: Sat, 5 Sep 2020 11:13:48 -0400 Subject: [Elecraft] Looking to buy KDSP2 - KD8ZYD Message-ID: Hi, I'm looking to buy a KDSP2 built or unbuilt. Please contact me if you have one you would like to part with. 73's Fred - KD8ZYD -- Thanks, Fred From kk5f at earthlink.net Sat Sep 5 11:26:11 2020 From: kk5f at earthlink.net (Mike Morrow) Date: Sat, 5 Sep 2020 10:26:11 -0500 (GMT-05:00) Subject: [Elecraft] New KX3 reverse voltage smoke Message-ID: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> The failure reported by G4JQT and the response of KC1DNY do not reflect what should happen when reverse polarity DC is applied to the KX3 or any other Elecraft rig. All have that series blocking diode (D6/CMS04 in KX3) that should prevent any significant reverse current flow and certainly should have prevented "smoke" and "melted wire" from developing. If indeed that is an accurate report, then an explanation from Elecraft should have been requested. Something else aside from reverse polarity DC is being hidden in the picture being presented so far. Mike / KK5F -----Original Message----- >From: David Haines >Sent: Sep 5, 2020 9:17 AM > >Don't feel bad Ian.? I reversed the polarity from the power supply, too. > ? After the smoke cleared and the smell went away, I called Elecraft >and after a few questions, service said send in my KX3. They called in a >couple days to thank me for sending the melted wire, but why did I send >the KX3, which was fine??? They apologized, checked out the KX3,? and >gave me a free replacement wire.? Great company! > >david,? KC1DNY > >On 9/5/2020 10:06 AM, Ian Liston-Smith wrote: >> Well I did it. Inadvertently got the +ve and -ve reversed. Loud buzz from PSU and smoke from KX3. >> >> Surely D6 in the volts input should just stop everything from working if the polarity is reversed? So I don't understand what has happened. >> >> I didn't actually switch it on so hopefully it isn't terminal and just enquires a new diode. If it is terminal, I'm really surprised it hasn't any protection. >> >> Ian, G4JQT >> ______________________________________________________________ From w5rg at yahoo.com Sat Sep 5 11:36:31 2020 From: w5rg at yahoo.com (Bob Gibson) Date: Sat, 5 Sep 2020 15:36:31 +0000 (UTC) Subject: [Elecraft] TX MON References: <1236553980.2672227.1599320191395.ref@mail.yahoo.com> Message-ID: <1236553980.2672227.1599320191395@mail.yahoo.com> THE TX MON HAS BEEN SOLD!? Thanks ?? 73s Bob W5RG From dhaines at bates.edu Sat Sep 5 13:17:30 2020 From: dhaines at bates.edu (David Haines) Date: Sat, 5 Sep 2020 13:17:30 -0400 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> References: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> Message-ID: I'm using the PowerWerx Power supply sold by Elecraft.? I mixed up the connections from the binding posts on the back of the power supply then plugged the other end into the KX3.? The KX3 was off. Next I turned on the power supply.? The wire melted, but I think I was able to disconnect the KX3 right away, so it's possible nothing got into the KX3.? Or maybe the melting wire broke the connection -- I forgot to do a continuity check on the wire.? The KX3 seemed OK, but service said to return it anyway. David KC1DNY On 9/5/2020 11:26 AM, Mike Morrow wrote: > The failure reported by G4JQT and the response of KC1DNY do not reflect what should happen when reverse polarity DC is applied to the KX3 or any other Elecraft rig. All have that series blocking diode (D6/CMS04 in KX3) that should prevent any significant reverse current flow and certainly should have prevented "smoke" and "melted wire" from developing. If indeed that is an accurate report, then an explanation from Elecraft should have been requested. > > Something else aside from reverse polarity DC is being hidden in the picture being presented so far. > > Mike / KK5F > > -----Original Message----- >> From: David Haines >> Sent: Sep 5, 2020 9:17 AM >> >> Don't feel bad Ian.? I reversed the polarity from the power supply, too. >> ? After the smoke cleared and the smell went away, I called Elecraft >> and after a few questions, service said send in my KX3. They called in a >> couple days to thank me for sending the melted wire, but why did I send >> the KX3, which was fine??? They apologized, checked out the KX3,? and >> gave me a free replacement wire.? Great company! >> >> david,? KC1DNY >> >> On 9/5/2020 10:06 AM, Ian Liston-Smith wrote: >>> Well I did it. Inadvertently got the +ve and -ve reversed. Loud buzz from PSU and smoke from KX3. >>> >>> Surely D6 in the volts input should just stop everything from working if the polarity is reversed? So I don't understand what has happened. >>> >>> I didn't actually switch it on so hopefully it isn't terminal and just enquires a new diode. If it is terminal, I'm really surprised it hasn't any protection. >>> >>> Ian, G4JQT >>> ______________________________________________________________ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ian.ls at hotmail.co.uk Sat Sep 5 13:20:44 2020 From: ian.ls at hotmail.co.uk (Ian Liston-Smith) Date: Sat, 5 Sep 2020 17:20:44 +0000 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> References: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> Message-ID: In my haste to disconnect everything I didn't notice that the antenna was connected, and thus the chassis had a good earth. On close inspection there is a tiny burnt patch around the power supply plug and presumably that's what created the smoke. So I guess the reverse current went through the plug mountings on the board to earth and the reverse diode did its job. There doesn't seem to be any serious damage to the board at the solder point to the plug, just a black spot that joint took the full force of the shorted current! I gently reheated that spot. Just hope there's not any overheated damage to any internal tracks. Anyway, seems no obvious harm was done. This KX3 still received and transmits. I have now replaced most of the original lead with a proper, clearly coloured red/black lead. 73, Ian, G4JQT ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Mike Morrow Sent: 05 September 2020 16:26 To: elecraft at mailman.qth.net Subject: Re: [Elecraft] New KX3 reverse voltage smoke The failure reported by G4JQT and the response of KC1DNY do not reflect what should happen when reverse polarity DC is applied to the KX3 or any other Elecraft rig. All have that series blocking diode (D6/CMS04 in KX3) that should prevent any significant reverse current flow and certainly should have prevented "smoke" and "melted wire" from developing. If indeed that is an accurate report, then an explanation from Elecraft should have been requested. Something else aside from reverse polarity DC is being hidden in the picture being presented so far. Mike / KK5F -----Original Message----- >From: David Haines >Sent: Sep 5, 2020 9:17 AM > >Don't feel bad Ian. I reversed the polarity from the power supply, too. > After the smoke cleared and the smell went away, I called Elecraft >and after a few questions, service said send in my KX3. They called in a >couple days to thank me for sending the melted wire, but why did I send >the KX3, which was fine? They apologized, checked out the KX3, and >gave me a free replacement wire. Great company! > >david, KC1DNY > >On 9/5/2020 10:06 AM, Ian Liston-Smith wrote: >> Well I did it. Inadvertently got the +ve and -ve reversed. Loud buzz from PSU and smoke from KX3. >> >> Surely D6 in the volts input should just stop everything from working if the polarity is reversed? So I don't understand what has happened. >> >> I didn't actually switch it on so hopefully it isn't terminal and just enquires a new diode. If it is terminal, I'm really surprised it hasn't any protection. >> >> Ian, G4JQT >> ______________________________________________________________ ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ian.ls at hotmail.co.uk From jlangdon1 at austin.rr.com Sat Sep 5 13:51:25 2020 From: jlangdon1 at austin.rr.com (John Langdon) Date: Sat, 5 Sep 2020 12:51:25 -0500 Subject: [Elecraft] Elecraft K3 parts and pieces for sale ; all prices shipped USPS to CONUS Message-ID: <00a801d683ad$2d2998d0$877cca70$@austin.rr.com> PR6 preamp $55 working fine when K3 was upgraded RRMTCBL remote rig cable set unopened $35 RRMINICBL K3/0 cable set unopened $35 >From K3 upgrade old parts: E850645 KIO3B , E85646 IO Module, E850647 Audio IO module, E850702 KIO3B panel, E850741 hardware $25 By them all as a bundle $80 73 John N5CQ From wa6tla at icloud.com Sat Sep 5 13:56:34 2020 From: wa6tla at icloud.com (Elliott Lawrence) Date: Sat, 5 Sep 2020 10:56:34 -0700 Subject: [Elecraft] KXV3A Modules for Sale In-Reply-To: <00a801d683ad$2d2998d0$877cca70$@austin.rr.com> References: <00a801d683ad$2d2998d0$877cca70$@austin.rr.com> Message-ID: I have a set of 3 KXV3A models for the K3. Surplus to my needs after an upgrade. $30 + shipping or offer. Please contact me directly. 73 Elliott WA6TLA From k6dgw at foothill.net Sat Sep 5 14:12:53 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sat, 5 Sep 2020 11:12:53 -0700 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: References: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> Message-ID: <606d4c0a-be80-cbf7-caf0-f1cc34dd6fc9@foothill.net> K2/100, not KX3, and not a reverse polarity problem but just a reminder:? There are two 2-conductor cables in a KPA100 that reach down and connect to the main K2 board.? The connectors are identical and the cables are long enough that either will reach to either RF board connector. If you cross them, you will short the 12V bus on the RF board and will likely burn through a trace. Reporting for a friend, [:=) 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/5/2020 10:20 AM, Ian Liston-Smith wrote: > In my haste to disconnect everything I didn't notice that the antenna was connected, and thus the chassis had a good earth. On close inspection there is a tiny burnt patch around the power supply plug and presumably that's what created the smoke. So I guess the reverse current went through the plug mountings on the board to earth and the reverse diode did its job. > > There doesn't seem to be any serious damage to the board at the solder point to the plug, just a black spot that joint took the full force of the shorted current! I gently reheated that spot. Just hope there's not any overheated damage to any internal tracks. > > Anyway, seems no obvious harm was done. This KX3 still received and transmits. > > I have now replaced most of the original lead with a proper, clearly coloured red/black lead. > > 73, > > Ian, G4JQT > From g4gnx at g4gnx.com Sat Sep 5 14:32:16 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Sat, 05 Sep 2020 18:32:16 +0000 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: References: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> Message-ID: I don't understand why the antenna being connected provided a path to ground for the supply. If that really is the case, there would seem to be a fault with your power supply. The secondary (low voltage) side of a PSU should never be connected to ground. Both poles should always 'float'. I'd be very surprised if Elecraft had connected the negative supply to chassis ground inside the KX3 either. 73, Alan. G4GNX ------ Original Message ------ From: "Ian Liston-Smith" To: "elecraft at mailman.qth.net" ; "Mike Morrow" Sent: 05/09/2020 18:20:44 Subject: Re: [Elecraft] New KX3 reverse voltage smoke >In my haste to disconnect everything I didn't notice that the antenna was connected, and thus the chassis had a good earth. On close inspection there is a tiny burnt patch around the power supply plug and presumably that's what created the smoke. So I guess the reverse current went through the plug mountings on the board to earth and the reverse diode did its job. > >There doesn't seem to be any serious damage to the board at the solder point to the plug, just a black spot that joint took the full force of the shorted current! I gently reheated that spot. Just hope there's not any overheated damage to any internal tracks. > >Anyway, seems no obvious harm was done. This KX3 still received and transmits. > >I have now replaced most of the original lead with a proper, clearly coloured red/black lead. > >73, > >Ian, G4JQT > >________________________________ >From: elecraft-bounces at mailman.qth.net on behalf of Mike Morrow >Sent: 05 September 2020 16:26 >To: elecraft at mailman.qth.net >Subject: Re: [Elecraft] New KX3 reverse voltage smoke > >The failure reported by G4JQT and the response of KC1DNY do not reflect what should happen when reverse polarity DC is applied to the KX3 or any other Elecraft rig. All have that series blocking diode (D6/CMS04 in KX3) that should prevent any significant reverse current flow and certainly should have prevented "smoke" and "melted wire" from developing. If indeed that is an accurate report, then an explanation from Elecraft should have been requested. > >Something else aside from reverse polarity DC is being hidden in the picture being presented so far. > >Mike / KK5F > From a.durbin at msn.com Sat Sep 5 14:59:14 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sat, 5 Sep 2020 18:59:14 +0000 Subject: [Elecraft] New KX3 reverse voltage smoke Message-ID: "If that really is the case, there would seem to be a fault with your power supply. The secondary (low voltage) side of a PSU should never be connected to ground. Both poles should always 'float'." Many of the currently marketed small switching supplies have the same internals and only differ in branding, rear connectors, and metering. I own two Jetstream switching supplies and there quite a few "badge engineered" power supplies that use the same internals. These power supplies most certainly do have the negative output terminal connected to chassis and mains supply ground. No, you can't isolate the output terminal. I was remined that the negative terminal is not isolated when I used one of these power supplies to drive the reversible DC motor that tunes my magnetic loop. One direction works ok, the other direction lets smoke out of the wires. If you want to feed reversible polarity DC up the coax using a pair of bias T then the PSU better be isolated! Opinions on whether PSU output terminals should float seem to be quite stong so I expect a protracted debate. 73, Andy, k3wyc From w6jhb at me.com Sat Sep 5 15:03:43 2020 From: w6jhb at me.com (James Bennett) Date: Sat, 5 Sep 2020 12:03:43 -0700 Subject: [Elecraft] W1 Programming??? In-Reply-To: <4564FEDC-20E4-433A-ABFF-96BA8079B250@me.com> References: <4564FEDC-20E4-433A-ABFF-96BA8079B250@me.com> Message-ID: <99B11DC9-B102-46EE-9347-D44FF2B1BED0@me.com> Guys - thanks for the replies! I might have enough info to get started. That is, after the W1 gets here from Watsonville and I get it soldered together. I?ll be doing it in Xojo (based on Real Basic) and can port it to the Rpi and/or Linux should I ever got it working. 73 & thanks, Jim / W6JHB > On Sep 4, 2020, at 2:46 PM, James Bennett via Elecraft wrote: > > I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I?m fairly proficient in several other programming languages and am thinking that I might ?roll my own?, starting on the Mac. > > I know that this is a stretch, but has anyone done this? I know - hahahaha? OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? > > 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 w6jhb at me.com From g4gnx at g4gnx.com Sat Sep 5 17:03:39 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Sat, 05 Sep 2020 21:03:39 +0000 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: References: Message-ID: In which case I maintain my original point that the PSU is faulty, but it would seem to be by bad design rather than a developed fault. Whilst the mains ground is there for safety, if there was a ground fault, it's quite possible that high voltage/current could be applied to the PSU low voltage side and cause untold damage, a fire or even death. If I had bought a PSU connected like that, I would return it if possible, otherwise it would be in the trash! Apart from the perceived PSU fault, have Elecraft really connected the -ve input terminal to chassis? That would kinda negate the use of the reverse polarity diode. The KX3 circuit diagram is not entirely clear. 73, Alan. G4GNX ------ Original Message ------ From: "Andy Durbin" To: "elecraft at mailman.qth.net" Sent: 05/09/2020 19:59:14 Subject: [Elecraft] New KX3 reverse voltage smoke >"If that really is the case, there would seem to be a fault with your power supply. The secondary (low voltage) side of a PSU should never be connected to ground. Both poles should always 'float'." > >Many of the currently marketed small switching supplies have the same internals and only differ in branding, rear connectors, and metering. I own two Jetstream switching supplies and there quite a few "badge engineered" power supplies that use the same internals. > >These power supplies most certainly do have the negative output terminal connected to chassis and mains supply ground. No, you can't isolate the output terminal. > >I was remined that the negative terminal is not isolated when I used one of these power supplies to drive the reversible DC motor that tunes my magnetic loop. One direction works ok, the other direction lets smoke out of the wires. If you want to feed reversible polarity DC up the coax using a pair of bias T then the PSU better be isolated! > >Opinions on whether PSU output terminals should float seem to be quite stong so I expect a protracted debate. > >73, >Andy, k3wyc > From kelly at kellybreed.com Sat Sep 5 17:17:30 2020 From: kelly at kellybreed.com (Kelly Breed) Date: Sat, 5 Sep 2020 14:17:30 -0700 Subject: [Elecraft] KX2 internal tuner issue Message-ID: <89BD8E6B-2CD5-4062-A95D-0CB4A4D596C7@kellybreed.com> I think I did something to my KX2 internal tuner. I don?t know exactly when this started happening but it?s possible it was after I accidentally transmitted a too-high signal from my base station to the KX2 while trying to verify calibration. To be clear, I understand my mistake there. Setting up a random wire antenna and counterpoise, turning off the KX2 internal tuner and using a T1 external tuner I can get 20m to tune to 1.4:1. Using the very same antenna set up and taking the T1 out (it was connected to the radio by 6 inches of coax) the best I can now do with the internal tuner is about 7.6:1. I get similar results on other bands. When I go to the settings for the tuner and scroll through all the inductor and capacitor settings I can hear a click with each one, so I think that means the relays are OK at least. I?m wondering whether or not it is worth it to send the radio in to Elecraft or just buy a new internal tuner board? Have any of you experienced a similar problem? Kelly AJ6KZ From K6RV at earthlink.net Sat Sep 5 17:36:33 2020 From: K6RV at earthlink.net (Donald Schliesser) Date: Sat, 5 Sep 2020 16:36:33 -0500 Subject: [Elecraft] PR6 Preamp Message-ID: I have a PR6 Preamp for sale also. Includes 2 BNC/BNC male adapters.? Same price - $60 shipped to your door - CONUS.? PayPal is fine, or USPS MO. Please reply off list. Donald K6RV From K6RV at earthlink.net Sat Sep 5 17:42:10 2020 From: K6RV at earthlink.net (Donald Schliesser) Date: Sat, 5 Sep 2020 16:42:10 -0500 Subject: [Elecraft] PR6 Preamp For Sale Message-ID: I have a PR6 Preamp, including 2 BNC/BNC adapters for sale.? $60 includes shipping CONUS. PayPal or USPS MO. Reply off list, please K6RV From norrislawfirm2 at gmail.com Sat Sep 5 19:13:22 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Sat, 5 Sep 2020 16:13:22 -0700 Subject: [Elecraft] WTB: P3 Message-ID: Flexible on options, if any. Contact me offlist at this address. 73 Eric WD6DBM From rosen.bruce at gmail.com Sat Sep 5 19:59:08 2020 From: rosen.bruce at gmail.com (K1FFX) Date: Sat, 5 Sep 2020 16:59:08 -0700 (MST) Subject: [Elecraft] W1 Programming??? In-Reply-To: <99B11DC9-B102-46EE-9347-D44FF2B1BED0@me.com> References: <4564FEDC-20E4-433A-ABFF-96BA8079B250@me.com> <99B11DC9-B102-46EE-9347-D44FF2B1BED0@me.com> Message-ID: <1599350348335-0.post@n2.nabble.com> And for trying out W1 commands and seeing what the expected response is, it's handy to use a terminal emulator that will talk over a serial (or serial via USB) port. I use putty for this purpose (and actually never built a program ... I just fire up putty when I want to get a more precise power readout from the W1). I played around with trying to build an Arduino version .. thought it would be fun to display W1 output on an LCD ... I used SoftwareSerial on the Arduino, but never succeeded in getting it to talk to the W1. - Bruce K1FFX ----- Bruce Rosen K1FFX K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 -- Sent from: http://elecraft.365791.n2.nabble.com/ From aa4lr at arrl.net Sat Sep 5 20:13:58 2020 From: aa4lr at arrl.net (Bill Coleman) Date: Sat, 5 Sep 2020 20:13:58 -0400 Subject: [Elecraft] [K3] Issue with HI CUR on 12m In-Reply-To: <5615FEF4-5A25-4C3D-BA22-C4F03AA0FCFF@blomand.net> References: <68FDBCF6-5CF4-4CC7-A75B-0C84A52875EC@arrl.net> <5615FEF4-5A25-4C3D-BA22-C4F03AA0FCFF@blomand.net> Message-ID: <9D94B7B7-4DDE-4D5B-B4EE-83F022FF57D3@arrl.net> I checked this. Voltage was 13.8 volts no load, dropped about a volt under load. I cranked it up to 14.4 volts no load, and it?s better, but still getting HI CUR indication above 90 watts. > On Jan 11, 2020, at 11:43 AM, Bob McGraw K4TAX wrote: > > Is the power supply at 14 volts or so? And what does the radio show the voltage to be in key down transmit into a dummy load. Low voltage will demand more current to produce 100 watts. > > I run my supply at 14.25 V no load and the radio shows 13.8V during 100 watts transmit. Voltage drop should be 0.5 volts or less. > > Bob, K4TAX > > > Sent from my iPhone > >> On Jan 11, 2020, at 10:31 AM, Bill Coleman wrote: >> >> ?Back in early December, I installed two KSYN3As in my K3 SN 7071. Sometime after that, I noticed that on 12m, I?m seeing a HI CUR indication when I set the power level to more than about 80-85 watts. The K3 will back off on the power level, then slowly ramp back up until it hits HI CUR again. >> >> I don?t remember seeing this before. After the KSYNC3A install, I ran the transmit gain calibration at both 5 and 50 watts, as specified in the instructions. Just in case something went awry, I ran it again. >> >> I?m still seeing this problem. What causes HI CUR at 85 watts? The K3 ought to be able to produce over 110 watts on 12m. >> >> I?m not seeing this issue on other bands. >> >> No issues with calibration >> Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net >> Web: http://boringhamradiopart.blogspot.com >> Quote: "Not within a thousand years will man ever fly!" >> -- Wilbur Wright, 1901 >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 > > Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 From aa4lr at arrl.net Sat Sep 5 20:21:30 2020 From: aa4lr at arrl.net (Bill Coleman) Date: Sat, 5 Sep 2020 20:21:30 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m In-Reply-To: References: Message-ID: <250C4A89-CFA0-4579-A504-6F93CF995ED8@arrl.net> Update on this - this problem with the KAT3 ATU not working on 6m appears to be intermittent. Sometimes it will tune, sometimes it won?t. Weird. > On May 17, 2020, at 6:38 PM, Bill Coleman wrote: > > I upgraded my K3 to include the new KSYN3A back in November. (I have the KRX3, so I installed two of them) > > Ever since then, it seems like the Antenna Tuner isn?t doing it?s thing on 6m. It works fine on the other bands. > > The K3 doesn?t really show any other problems. > > Here?s the symptoms: > > - ATU not in bypass > - ANT1 or ANT2 - doesn?t matter. > - Press ATU Tune > - Unit makes noises like it is working on a match, but the entire time, the display only shows ?- -? in the right hand side of the display ? at no time does it show an SWR. > - Eventually, unit gives up trying to find a match > > What?s odd is this: > > - Press Tune, unit outputs power, but no SWR is displayed in the right hand side of the display, only ?- -?. > > - However, if I transmit, I do see an SWR indication in the meter face, and the SWR seems accurate, depending on the antenna I choose. > > I?m running firmware revision 5.67/2.88 ? which is the latest, I believe. > > Any ideas? > > Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net > Web: http://boringhamradiopart.blogspot.com > Quote: "Not within a thousand years will man ever fly!" > -- Wilbur Wright, 1901 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to aa4lr at arrl.net Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 From w4sc at windstream.net Sat Sep 5 21:01:18 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 5 Sep 2020 21:01:18 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m Message-ID: Bill, I had an issue very similar. The ?Automatic TXGain? procedure is performed at 52 MHz. I was using a 50 ohm load attached, and at 50.125 the KAT3 have trouble matching the load. Also it appears there is not enough power out in the lower part of the band for the SWR bridge to function. Part of the problem is I believe, the f/w switches the KPA3 ON at 8 watts instead of the usual 12???.. Performing a MANUAL TX Gain procedure on 6M may help. Here is link to post I made several weeks ago. https://www.mail-archive.com/elecraft at mailman.qth.net/msg241436.html 73 de Ben W4SC Sent from Mail for Windows 10 From ab2tc at arrl.net Sat Sep 5 22:20:37 2020 From: ab2tc at arrl.net (ab2tc) Date: Sat, 5 Sep 2020 19:20:37 -0700 (MST) Subject: [Elecraft] K3S TX current Message-ID: <1599358837017-0.post@n2.nabble.com> Hi, I have recently made a discovery during a routine checkup that my K3S draws *much* more TX current on 20 m than any of the other bands. Using Data A FSKD mode at the 100W level it draws about 22A versus 16-18 A on all other bands. DC voltage from the Powerwerx SS-30DV is 14.2V as measured at the binding posts. The K3S voltmeter indicates 14.2V in receive and 13.7V in transmit mode. Current is measured with the K3S built-in ammeter (~1A in receive). Power output is 100-102W as measured with an LP-100A on all bands 40m - 10m. TX IMD is not noticeably affected as measured using the built-in 2-tone generator. I measure maybe 33dB (5th order worst case) below PEP on 40m slowly worsening to 30dB on 10m, all within acceptable limits for a solid state 12VDC powered transmitter. What's up with this? I don't know how long this has been been a "problem" as this is not something I routinely monitor. My much older K3 (with the old bipolar PA) does *not* exhibit this behavior. Is this indicative of a problem with the 20m low-pass filter perhaps? All measurements are done with a Ridge Electronics dummy load. All RF connections are tight and the LP-100A indicates 1.01 SWR on this dummy load in all cases. BTW my serial # is 10480, which is an early serial #. It was back to Elecraft twice in its first year for fixes to the transmit signal path to improve TX IMD. Knut - AB2TC PS. I am not worried about the electricity bill, but whether this is indicative of a potential future serious failure. -- Sent from: http://elecraft.365791.n2.nabble.com/ From kevinr at coho.net Sat Sep 5 22:23:58 2020 From: kevinr at coho.net (kevinr) Date: Sat, 5 Sep 2020 19:23:58 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <0629f914-d75f-1b22-26de-91381cb3e064@coho.net> Good Evening, Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) ?7047 kHz at 0045z Monday (5:45 PM PDT Sunday) ?? 73, ????? Kevin. KD5ONS _ From pvandyke1953 at gmail.com Sat Sep 5 23:08:00 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Sat, 5 Sep 2020 23:08:00 -0400 Subject: [Elecraft] The Elecraft Nets Message-ID: The Elecraft Nets ---------------------------------- 20 Meter SSB Elecraft Net Sunday 14.3035 +/- kHz at 1800Z *Please take note of time change * 40 Meter SSB Elecraft Net Sunday 7.280 kHz at 19:000z 20 Meter CW Elecraft Net Sunday 14.050.5 kHz at 2200z: 40 Meter CW Elecraft Net Sunday 7.047.5 kHz at 0000z: 80 Meter SSB Elecraft Net Sunday Night 3.942+/- at 01:00z *Please take note of frequency change * Hope to "hear" you Put a copy up in your shack Paul KB9AVO From voerman at att.net Sun Sep 6 06:44:20 2020 From: voerman at att.net (Lou Voerman W2ROW) Date: Sun, 6 Sep 2020 03:44:20 -0700 (MST) Subject: [Elecraft] W1 Programming??? In-Reply-To: <1599350348335-0.post@n2.nabble.com> References: <4564FEDC-20E4-433A-ABFF-96BA8079B250@me.com> <99B11DC9-B102-46EE-9347-D44FF2B1BED0@me.com> <1599350348335-0.post@n2.nabble.com> Message-ID: <1599389060458-0.post@n2.nabble.com> I have successfully used an Arduino to talk to a W2. Like Bruce I could not get it to work with SoftwareSerial, only the hardware Serial port would work. I have it working with an Uno, a Nano and a Mega all using the Serial port. Lest you are tempted to use the hardware serial ports Serial1, Serial2 or Serial3 on the Mega, they will also will not work. I did not test with a W1 but based on what has been described here I expect it behaves the same as the W2. Unfortunately the same Serial port is used to download the program via USB, so you need to disconnect the W2 (or W1) when doing downloads. 73, Lou W2ROW -- Sent from: http://elecraft.365791.n2.nabble.com/ From forums at david-woolley.me.uk Sun Sep 6 07:47:56 2020 From: forums at david-woolley.me.uk (David Woolley) Date: Sun, 6 Sep 2020 12:47:56 +0100 Subject: [Elecraft] W1 Programming??? In-Reply-To: <93d37f68-a0f4-fc80-f867-6665b3f5e985@coho.net> References: <4564FEDC-20E4-433A-ABFF-96BA8079B250@me.com> <93d37f68-a0f4-fc80-f867-6665b3f5e985@coho.net> Message-ID: When you are interacting with a USB thumb drive, you are normally interacting with a USB mass storage class device, not with raw USB. Most cheap USB boltons to hardware are done with the communications class, and emulate an asynchronous serial port (although some may use the human interface device (mouse/keyboard) class. As such, the ability to write code for the thumb drive doesn't mean you can use the same code on the wattmeter, even though the chances are that the USB side can be treated as though it were something else. -- David Woolley Owner K2 06123. On 05/09/2020 01:57, kevinr wrote: > I just wrote a little code using Posix standards under Ubuntu with g++ > for my compiler.? Looks like USB is treated as a normal stream of > characters.? The most difficult part was finding my USB thumb drive in > the file system. From forums at david-woolley.me.uk Sun Sep 6 08:06:19 2020 From: forums at david-woolley.me.uk (David Woolley) Date: Sun, 6 Sep 2020 13:06:19 +0100 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: References: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> Message-ID: <3196d436-e824-dcb7-76d6-0fca65950e38@david-woolley.me.uk> I'd definitely expect the chassis ground to have a low impedance connection to the negative power supply rail, and normally that would be a DC connection. Without it the screening of internal circuitry would be less effective. The K2 definitely has a DC path from supply negative to the case. I'd also expect any power supply large enough to require a ground connection, and eventually have exposed voltage output rails, to have ground connected to one. Without that, capacitive leakage can generate a significant electric shock hazard, or even cause damage when the powered equipment is being interconnected with equipment on another power supply. If the safety earth rises significantly above that of other conducting items during a fault, there is a defect in earth bonding in the installation as a whole, that needs urgent rectification. -- David Woolley Owner K2 06123. On 05/09/2020 19:32, Alan - G4GNX wrote: > I don't understand why the antenna being connected provided a path to > ground for the supply. > > If that really is the case, there would seem to be a fault with your > power supply. The secondary (low voltage) side of a PSU should never be > connected to ground. Both poles should always 'float'. > > I'd be very surprised if Elecraft had connected the negative supply to > chassis ground inside the KX3 either. From forums at david-woolley.me.uk Sun Sep 6 08:14:53 2020 From: forums at david-woolley.me.uk (David Woolley) Date: Sun, 6 Sep 2020 13:14:53 +0100 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: References: <1172279307.1819.1599319571958@wamui-hamster.atl.sa.earthlink.net> Message-ID: <7f7b3793-31c1-692a-5730-6ef449263fb5@david-woolley.me.uk> See page 3 of for confirmation that the KX3 chassis is connected to the the same network as the negative supply to the internal components. On 05/09/2020 19:32, Alan - G4GNX wrote: > I'd be very surprised if Elecraft had connected the negative supply to > chassis ground inside the KX3 either. From valosin at midtel.net Sun Sep 6 08:26:42 2020 From: valosin at midtel.net (Tom & Barb Valosin) Date: Sun, 6 Sep 2020 08:26:42 -0400 Subject: [Elecraft] Elecraft Digest, Vol 197, Issue 8 In-Reply-To: References: Message-ID: <8e372cde-e60d-a7a2-b33f-95a634c3109c@midtel.net> This is Tom, WB2KLD. I have a PR6 preamp for sale. It was with my K3 when I bought the rig but I have never used it. It was with the rig when the previous owner paid for a factory refurb prior to delivery to me so I believe it is fully operative. Asking for $60.00 + $10.00 USA shipping. Contact me direct please at valosin at midtel.net On 9/5/2020 5:03 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 PR6 Preamp - SOLD (Ed Pflueger) > 2. Fwd: K4 Manual? (wa6mse at arrl.net) > 3. W1 Programming??? (James Bennett) > 4. Re: K2+KPA100 hi current and hi output (K1FFX) > 5. Re: K2+KPA100 hi current and hi output (Don Wilhelm) > 6. PR6 preamp for sale (Richard Lawn) > 7. Re: K3 External speakers (Brian Hunt) > 8. WTB: KVR3 digital voice recorder for K3 (Alan D. Wilcox) > 9. TX MON (Bob Gibson) > 10. Re: W1 Programming??? (kevinr) > 11. Re: WTB: KVR3 digital voice recorder for K3 (Bob Wilson, N6TV) > 12. New KX3 reverse voltage smoke (Ian Liston-Smith) > 13. Re: New KX3 reverse voltage smoke (David Haines) > 14. Looking to buy KDSP2 - KD8ZYD (Fred) > 15. Re: New KX3 reverse voltage smoke (Mike Morrow) > 16. TX MON (Bob Gibson) > 17. Re: New KX3 reverse voltage smoke (David Haines) > 18. Re: New KX3 reverse voltage smoke (Ian Liston-Smith) > 19. Re: Elecraft K3 parts and pieces for sale ; all prices > shipped USPS to CONUS (John Langdon) > 20. KXV3A Modules for Sale (Elliott Lawrence) > 21. Re: New KX3 reverse voltage smoke (Fred Jensen) > 22. Re: New KX3 reverse voltage smoke (Alan - G4GNX) > 23. New KX3 reverse voltage smoke (Andy Durbin) > 24. Re: W1 Programming??? (James Bennett) > 25. Re: New KX3 reverse voltage smoke (Alan - G4GNX) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Fri, 4 Sep 2020 16:06:31 -0500 > From: "Ed Pflueger" > To: "'Ron Freeman'" , > > Subject: Re: [Elecraft] Elecraft PR6 Preamp - SOLD > Message-ID: <011a01d682ff$4b582eb0$e2088c10$@comcast.net> > Content-Type: text/plain; charset="utf-8" > > Me too. > > Ed AB4IQ ab4iq at comcast.net > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ron Freeman > Sent: Friday, September 4, 2020 1:43 PM > To: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] Elecraft PR6 Preamp - SOLD > > I have one available too. Same deal. > > k5mm/ron > > Sent from my iPad > >> On Sep 4, 2020, at 1:05 PM, Rajiv Dewan via Elecraft wrote: >> >> ?I have one for sale as well. >> >> Same deal as Bob. >> >> Raj >> >>> On Sep 4, 2020, at 2:02 PM, K5WA wrote: >>> >>> My PR6 has been spoken for but I also received 3 additional offers to >>> buy a >>> PR6 so I would encourage anyone that wants to sell theirs, you should >>> post an offer. I think you will get a reply rather quickly. >>> >>> >>> >>> From: K5WA >>> Sent: Friday, September 4, 2020 10:06 AM >>> To: 'Elecraft at mailman.qth.net' >>> Subject: FS: Elecraft PR6 Preamp >>> >>> >>> >>> For those of you picking up legacy K3 rigs recently, you might want >>> to consider this option. The PR6 was designed to help boost 10M and >>> 6M signals as an add-on unit which plugs into the RX IN/OUT >>> connections on the back of the K3 with supplied BNC connectors. >>> There is a power connection and a control so that you can turn on the >>> PR6 by simply pressing the RX ANT button on the front of the K3. Here is a link to the user's manual: >>> https://ftp.elecraft.com/PR/Manuals%20Downloads/PR6_Owners_Manual_Rev >>> _B.pdf >>> >>> >>> >>> >>> >>> $60 or best offer, postpaid to lower 48. >>> >>> Please contact me off list at listed email. >>> >>> >>> >>> 73, >>> >>> Bob K5WA >>> >>> Houston, TX >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this >>> email list: http://www.qsl.net/donate.html Message delivered to >>> n2rd 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 >> k5mm.ronfreeman at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to ab4iq at comcast.net > > > > ------------------------------ > > Message: 2 > Date: Fri, 4 Sep 2020 14:29:37 -0700 > From: wa6mse at arrl.net > To: elecraft at mailman.qth.net > Subject: [Elecraft] Fwd: K4 Manual? > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > > > > > > > > > > > > I see that Elecraft is just starting to ship K4s.? I am wondering when > the manual will be available for download?? It would be nice start > reading about the MANY functions of this radio prior to actually > receiving it. > > Thanks > 73 > Nigel > WA6MSE > > > ------------------------------ > > Message: 3 > Date: Fri, 4 Sep 2020 14:46:26 -0700 > From: James Bennett > To: Elecraft Reflector Reflector > Subject: [Elecraft] W1 Programming??? > Message-ID: <4564FEDC-20E4-433A-ABFF-96BA8079B250 at me.com> > Content-Type: text/plain; charset=utf-8 > > I just ordered the nifty little W1 Wattmeter. I see that it can supply serial data to an external program, and that there is a free download of a Visual Basic program on the Elecraft web site. I use a Mac and a Raspberry Pi and do not have VB on either, nor do I want to. I?m fairly proficient in several other programming languages and am thinking that I might ?roll my own?, starting on the Mac. > > I know that this is a stretch, but has anyone done this? I know - hahahaha? OK, how about anyone out there who has read serial data (coming over USB with the Elecraft Serial->USB cable? Any pointers or links to documentation on how to do that? > > Jim / W6JHB > > ------------------------------ > > Message: 4 > Date: Fri, 4 Sep 2020 15:17:50 -0700 (MST) > From: K1FFX > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] K2+KPA100 hi current and hi output > Message-ID: <1599257870067-0.post at n2.nabble.com> > Content-Type: text/plain; charset=us-ascii > > Hi, Andre - > > I wonder if it's a problem with blown D16 and D17 in the KPA100. > > If you follow this forum on-line at nabble.com, you can do a search for > "D16" and > see many postings on the topic. > > Good luck. > > - Bruce K1FFX > > > > > ----- > Bruce Rosen > K1FFX > K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > > > ------------------------------ > > Message: 5 > Date: Fri, 4 Sep 2020 18:29:22 -0400 > From: Don Wilhelm > To: atfu , elecraft at mailman.qth.net > Subject: Re: [Elecraft] K2+KPA100 hi current and hi output > Message-ID: <07cad0dc-f7c8-2ebc-e1e7-2cf9e6f7c4ce at embarqmail.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > Andre, > > Do you have any power control? To check set the power to about 50 watts > and do a TUNE. Measure the actual power output with an in-line > wattmeter and a 50 ohm dummy load. > > If it still goes to 160 watts, you do not have any power control. The > usual reason is the diodes D16 and D17 (1N5711 type) have been damaged > by static coming in on the feedline. Replace those diodes and re-check. > > If that does not fix it, I can help with additional troubleshooting. > > 73, > Don W3FPR > > On 9/4/2020 4:39 PM, atfu wrote: >> Dear All, >> >> I gave a new home to a? K2 + (KPA100+KAT100 in EC 2), ser#>5000. The K2 >> on its own is runnung fine. >> >> When I connect to the KPA+KAT I get HiCur warning (on initiating TX) on >> all bands with POW>10W. This also happens when I transmit into a dummy >> load. I measured the output from the dummyload with a DMM. There are >> only two values (depending on the dialled in watts): >> >> Below 10W = 38 VDC (= 14W) >> Above (I checked 20, 50, 80, 100W) = 129 VDC (= 160W!!) >> >> In other words, as soon as the KPA is activated, the output is 160W >> (according to my formula for converting VDC in W). The meter on the >> power supply (good for 25A) confirms that I draw about 20A above 10W in, >> apparently only limited by the slow 20A fuse in the line. >> > > ------------------------------ > > Message: 6 > Date: Fri, 4 Sep 2020 19:07:32 -0400 > From: Richard Lawn > To: elecraft at mailman.qth.net > Subject: [Elecraft] PR6 preamp for sale > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > I know longer need mine so it?s available to anyone who wanted the other > one and missed out on it. > > $60 > > Happy holiday! > Rick, W2JAZ From dave.g4aon at gmail.com Sun Sep 6 08:35:06 2020 From: dave.g4aon at gmail.com (Dave) Date: Sun, 6 Sep 2020 13:35:06 +0100 Subject: [Elecraft] New KX3 reverse voltage smoke Message-ID: Many items of radio equipment are supplied with a fuse in both the +ve and -ve leads to avoid damage from missing return connections in vehicle installations, as well as providing a fuse if the -ve rail is accidentally connected to a +ve power supply point, where -ve at the supply connects to ground. Some mobile radios had a ?fuse? from their power socket -ve point to chassis inside the radio, this was a short length of tinned copper wire to protect the wiring in case of reversed connections. I replaced a lot of those fused links when I worked for a mobile radio manufacturer. 73 Dave G4AON -- Sent from my iPhone SE From w2up at comcast.net Sun Sep 6 08:47:32 2020 From: w2up at comcast.net (Barry) Date: Sun, 6 Sep 2020 05:47:32 -0700 (MST) Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? Message-ID: <1599396452803-0.post@n2.nabble.com> With ever increasing volume, sure to increase exponentially when the K4's start coming, is it time to replace this list with a forum? Yes, emails can be filtered, but does it make sense to download hundreds of emails when only a handful are of interest due to your equipment inventory? Barry W2UP -- Sent from: http://elecraft.365791.n2.nabble.com/ From w8fn at windstream.net Sun Sep 6 09:09:42 2020 From: w8fn at windstream.net (Randy Farmer) Date: Sun, 6 Sep 2020 09:09:42 -0400 Subject: [Elecraft] K3S TX current In-Reply-To: <1599358837017-0.post@n2.nabble.com> References: <1599358837017-0.post@n2.nabble.com> Message-ID: <92c8e0e7-08f5-f5c6-6ff0-b2df290c40f1@windstream.net> Interesting. My K3S (10175) and K3 (3260) exhibit the exact same behavior. My K3S had a problem with low power stability on 80 meters that resulted in field replacement of the 100W PA module, but the 20 meter current draw didn't change. My working hypothesis is tolerance stack-up in the 20 meter LPF, but that's just a supposition. Both radios have been used for fairly serious contest duty, the K3 since 2009 and the K3S since 2016, with no reliability problems. 73... Randy, W8FN On 9/5/2020 10:20 PM, ab2tc wrote: > Hi, > > I have recently made a discovery during a routine checkup that my K3S draws > *much* more TX current on 20 m than any of the other bands. Using Data A > FSKD mode at the 100W level it draws about 22A versus 16-18 A on all other > bands. DC voltage from the Powerwerx SS-30DV is 14.2V as measured at the > binding posts. The K3S voltmeter indicates 14.2V in receive and 13.7V in > transmit mode. Current is measured with the K3S built-in ammeter (~1A in > receive). Power output is 100-102W as measured with an LP-100A on all bands > 40m - 10m. TX IMD is not noticeably affected as measured using the built-in > 2-tone generator. I measure maybe 33dB (5th order worst case) below PEP on > 40m slowly worsening to 30dB on 10m, all within acceptable limits for a > solid state 12VDC powered transmitter. > > What's up with this? I don't know how long this has been been a "problem" as > this is not something I routinely monitor. My much older K3 (with the old > bipolar PA) does *not* exhibit this behavior. Is this indicative of a > problem with the 20m low-pass filter perhaps? All measurements are done with > a Ridge Electronics dummy load. All RF connections are tight and the LP-100A > indicates 1.01 SWR on this dummy load in all cases. BTW my serial # is > 10480, which is an early serial #. It was back to Elecraft twice in its > first year for fixes to the transmit signal path to improve TX IMD. > > Knut - AB2TC > > PS. I am not worried about the electricity bill, but whether this is > indicative of a potential future serious failure. From kk5f at earthlink.net Sun Sep 6 09:26:41 2020 From: kk5f at earthlink.net (Mike Morrow) Date: Sun, 6 Sep 2020 09:26:41 -0400 (EDT) Subject: [Elecraft] New KX3 reverse voltage smoke Message-ID: <1249598910.662.1599398801986@wamui-hamster.atl.sa.earthlink.net> Yes, it's "surprising" how much surprise there seems to be that the KX3 (and almost any other ham rig) DC power connector's negative terminal connects ultimately to the case. Let me "flog a dead horse". This whole affair amounts simply to this: 1. The KX3 case and the power supply's negative output were tied together through an owner-established conduction path that was independent of the KX3 power cable. 2. The KX3 power cable was carelessly installed such that power supply positive output was on the KX3 power connector's negative terminal. 3. When the KX3 power connector was applied to the KX3, the power supply's positive terminal was shorted to its negative side through the power cable and KX3 case and whatever external conduction path the owner had established between the KX3 case and power supply negative. The KX3's D6 polarity protection diode did not come into play in any manner. It is common good practice for DC power cables to have fuses in BOTH the positive AND the negative leads. That would have prevented power cable damage here. Mike / KK5F -----Original Message----- >From: David Woolley >Sent: Sep 6, 2020 7:14 AM > >See page 3 of > >for confirmation that the KX3 chassis is connected to the the same >network as the negative supply to the internal components. > >On 05/09/2020 19:32, Alan - G4GNX wrote: >> I'd be very surprised if Elecraft had connected the negative supply to >> chassis ground inside the KX3 either. From radioham at mchsi.com Sun Sep 6 09:27:34 2020 From: radioham at mchsi.com (David Christ) Date: Sun, 6 Sep 2020 08:27:34 -0500 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599396452803-0.post@n2.nabble.com> References: <1599396452803-0.post@n2.nabble.com> Message-ID: What I have most valued in this list is not the specific information on a piece of Elecraft equipment I own but the the educational value of so much of the other things posted. Not only do I learn new things, I also find comments about other models that can be applied to those I own. This only the beginning of the strength of a general list. David K0LUM > On Sep 6, 2020, at 7:47 AM, Barry wrote: > > With ever increasing volume, sure to increase exponentially when the K4's > start coming, is it time to replace this list with a forum? > > Yes, emails can be filtered, but does it make sense to download hundreds of > emails when only a handful are of interest due to your equipment inventory? > > Barry W2UP > > > > -- > 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 radioham at mchsi.com From rich at wc3t.us Sun Sep 6 12:39:08 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Sun, 6 Sep 2020 12:39:08 -0400 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599396452803-0.post@n2.nabble.com> References: <1599396452803-0.post@n2.nabble.com> Message-ID: I think Wayne has answered this. Beat it to death, really. Groups.io has its place and so does the reflector. On Sun, Sep 6, 2020 at 08:47 Barry wrote: > With ever increasing volume, sure to increase exponentially when the K4's > > start coming, is it time to replace this list with a forum? > > > > Yes, emails can be filtered, but does it make sense to download hundreds of > > emails when only a handful are of interest due to your equipment inventory? > > > > Barry W2UP > > > > > > > > -- > > Sent from: http://elecraft.365791.n2.nabble.com/ > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to rich at wc3t.us > > -- 72, Rich Hurd / WC3T / DMR: 3142737 Northampton County RACES, EPA-ARRL Public Information Officer for Scouting Latitude: 40.761621 Longitude: -75.288988 (40?45.68' N 75?17.33' W) Grid: *FN20is* From 73.de.ne1ee at gmail.com Sun Sep 6 13:38:20 2020 From: 73.de.ne1ee at gmail.com (Rich NE1EE) Date: Sun, 06 Sep 2020 13:38:20 -0400 Subject: [Elecraft] New KX3 reverse voltage smoke In-Reply-To: <1249598910.662.1599398801986@wamui-hamster.atl.sa.earthlin k.net> References: <1249598910.662.1599398801986@wamui-hamster.atl.sa.earthlink.net> Message-ID: <5f551e97.1c69fb81.7ec26.6344@mx.google.com> On 2020-09-06 09:26:-0400, Mike Morrow wrote: >Yes, it's "surprising" how much surprise there seems to be that the KX3 (and almost any other ham rig) DC power connector's negative terminal connects ultimately to the case. So I don't routinely get into this level of ham gear assembly...but I find that I am increasingly going there. When I read "DC power connector's negative terminal", I immediately think of + and - rails, and a neutral ground. I do understand that when I look at barrel connector, the icon usually shows a + and - terminal. But it seems to me that the - terminal is really ground...not a negative rail. I can see how, even with my terminology, swapping leads on a power connector can lead to shorting + to ground. So are we really saying that the case is connected to ground, when we say negative terminal? >Let me "flog a dead horse". This whole affair amounts simply to this: I understand the SOE that led to this event....I am only addressing nomenclature. But thanks for succinctly summarizing... From nr4c at widomaker.com Sun Sep 6 13:46:16 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 6 Sep 2020 13:46:16 -0400 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: References: Message-ID: <5DB824DF-3C29-4F69-8820-E80E1983D3BE@widomaker.com> This comes up often. And Elecraft is adamant that they want it just as it is. And it?s their ?football?. There is a group on groups.io for the L4 (Elecraft-L4). Perhaps you can check it out. Sent from my iPhone ...nr4c. bill > On Sep 6, 2020, at 9:30 AM, David Christ wrote: > > ?What I have most valued in this list is not the specific information on a piece of Elecraft equipment I own but the the educational value of so much of the other things posted. Not only do I learn new things, I also find comments about other models that can be applied to those I own. This only the beginning of the strength of a general list. > > David K0LUM > >> On Sep 6, 2020, at 7:47 AM, Barry wrote: >> >> With ever increasing volume, sure to increase exponentially when the K4's >> start coming, is it time to replace this list with a forum? >> >> Yes, emails can be filtered, but does it make sense to download hundreds of >> emails when only a handful are of interest due to your equipment inventory? >> >> Barry W2UP >> >> >> >> -- >> 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 radioham at mchsi.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ab2tc at arrl.net Sun Sep 6 14:07:17 2020 From: ab2tc at arrl.net (ab2tc) Date: Sun, 6 Sep 2020 11:07:17 -0700 (MST) Subject: [Elecraft] K3S TX current In-Reply-To: <92c8e0e7-08f5-f5c6-6ff0-b2df290c40f1@windstream.net> References: <1599358837017-0.post@n2.nabble.com> <92c8e0e7-08f5-f5c6-6ff0-b2df290c40f1@windstream.net> Message-ID: <1599415637791-0.post@n2.nabble.com> Hi Randy, Does your K3 #3260 have the newer MOSFET PA? I believe the K3 switched the PA from bipolar to the newer MOSFET design at some point (mine is #82!). I agree with you that the 20/30m LPF ought to be a prime suspect. Everything else is common and 14MHz should be very close to the center of the total frequency range of the transmitter. My K3S has not had any reliability problems either, but it sees fairly light duty with SSB only and no heavy duty "run mode" contest use. BTW, I checked the current draw on 30m (on the K3S) which *shares the same LP filter*. It is an average 17.5A. But 30m is lower in frequency and thus farther away from the filter cutoff. 40m, 15m and 10m LP filters are also shared with a lower frequency band, but do not cause an elevated current draw. Knut - AB2TC Randy Farmer-2 wrote > Interesting. My K3S (10175) and K3 (3260) exhibit the exact same > behavior. My K3S had a problem with low power stability on 80 meters > that resulted in field replacement of the 100W PA module, but the 20 > meter current draw didn't change. My working hypothesis is tolerance > stack-up in the 20 meter LPF, but that's just a supposition. Both radios > have been used for fairly serious contest duty, the K3 since 2009 and > the K3S since 2016, with no reliability problems. > > 73... > Randy, W8FN > > On 9/5/2020 10:20 PM, ab2tc wrote: > -- Sent from: http://elecraft.365791.n2.nabble.com/ From w8fn at windstream.net Sun Sep 6 14:26:21 2020 From: w8fn at windstream.net (Randy Farmer) Date: Sun, 6 Sep 2020 14:26:21 -0400 Subject: [Elecraft] K3S TX current In-Reply-To: <1599415637791-0.post@n2.nabble.com> References: <1599358837017-0.post@n2.nabble.com> <92c8e0e7-08f5-f5c6-6ff0-b2df290c40f1@windstream.net> <1599415637791-0.post@n2.nabble.com> Message-ID: <33977f67-df80-dc76-9ae5-f353fd01d3dc@windstream.net> The K3 PA is the original module, but I don't know what devices it uses. Perhaps someone with inside knowledge could provide a S/N range or approximate date for the changeover. I built my K3 from a kit in July 2009. As I recall, It draws about 17.5A with key-down CW on 20 meters. The K3S PA module was replaced in July 2016. I don't know if the original K3S PA showed the elevated current draw before it was replaced. 73... Randy, W8FN On 9/6/2020 2:07 PM, ab2tc wrote: > Hi Randy, > > Does your K3 #3260 have the newer MOSFET PA? I believe the K3 switched the > PA from bipolar to the newer MOSFET design at some point (mine is #82!). I > agree with you that the 20/30m LPF ought to be a prime suspect. Everything > else is common and 14MHz should be very close to the center of the total > frequency range of the transmitter. My K3S has not had any reliability > problems either, but it sees fairly light duty with SSB only and no heavy > duty "run mode" contest use. > > BTW, I checked the current draw on 30m (on the K3S) which *shares the same > LP filter*. It is an average 17.5A. But 30m is lower in frequency and thus > farther away from the filter cutoff. 40m, 15m and 10m LP filters are also > shared with a lower frequency band, but do not cause an elevated current > draw. > > Knut - AB2TC From w5jv at hotmail.com Sun Sep 6 14:48:41 2020 From: w5jv at hotmail.com (Doug Hensley) Date: Sun, 6 Sep 2020 18:48:41 +0000 Subject: [Elecraft] FS: Two Unused Elecraft Accessories: one KPOD and and one W2-200 both factory built. In-Reply-To: References: Message-ID: FS: Two Unused Elecraft Accessories: one KPOD and and one W2-200 both factory built. These are mint factory builds that were unused. Shipped as I received less paperwork. Manuals & firmeware on the Elecraft site. First come, first served. W2 Wattmeter. - List $379.00. Sell $350 Includes the 2 - 200 Watt Inline Sensor. (no cables) https://elecraft.com/collections/test-equipment/products/w2 KPOD. - List $289.00. Sell $250 With unused factory cable set. https://elecraft.com/collections/k-pod-desktop-control-panel/products/k-pod-control-panel-for-the-k3s-k3 Insured & Tracked FedEx to Upper 48 ONLY $12.50 Payment by simple check, money order or bank draft. No PAYPAL. 73, Doug W5JV From dave at nk7z.net Sun Sep 6 15:42:13 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 6 Sep 2020 12:42:13 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <5DB824DF-3C29-4F69-8820-E80E1983D3BE@widomaker.com> References: <5DB824DF-3C29-4F69-8820-E80E1983D3BE@widomaker.com> Message-ID: <7dbc2909-ee95-a792-d65d-e0fd4761616d@nk7z.net> Given that the market for K4 radios will come primarily from K3 owners initially, the last thing Elecraft will do is to start a different group, and I am glad of that. This COVID crap can not have been easy for them, couple that with fires, etc., and they need to sell radios! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 9/6/20 10:46 AM, Nr4c wrote: > This comes up often. And Elecraft is adamant that they want it just as it is. And it?s their ?football?. > > There is a group on groups.io for the L4 (Elecraft-L4). Perhaps you can check it out. > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 6, 2020, at 9:30 AM, David Christ wrote: >> >> ?What I have most valued in this list is not the specific information on a piece of Elecraft equipment I own but the the educational value of so much of the other things posted. Not only do I learn new things, I also find comments about other models that can be applied to those I own. This only the beginning of the strength of a general list. >> >> David K0LUM >> >>> On Sep 6, 2020, at 7:47 AM, Barry wrote: >>> >>> With ever increasing volume, sure to increase exponentially when the K4's >>> start coming, is it time to replace this list with a forum? >>> >>> Yes, emails can be filtered, but does it make sense to download hundreds of >>> emails when only a handful are of interest due to your equipment inventory? >>> >>> Barry W2UP >>> >>> >>> >>> -- >>> 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 radioham at mchsi.com >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 dave at nk7z.net > From phriendly1 at yahoo.com Sun Sep 6 16:04:19 2020 From: phriendly1 at yahoo.com (Julius Fazekas) Date: Sun, 6 Sep 2020 20:04:19 +0000 (UTC) Subject: [Elecraft] For Sale: unbuilt kit KSB2 SSB Option for K2 References: <187082630.809065.1599422659203.ref@mail.yahoo.com> Message-ID: <187082630.809065.1599422659203@mail.yahoo.com> Hi, Unbuilt KSB2 kit (rev G) asking $170 shipped US. Can send pictures. Please contact off list. Also have a bunch of other K2 parts like the back cover, embroidered cover (has my call on it), toroids and other odds n ends. NO other kits. Been doing serious cleaning and it's amazing what I have squirreled away. If anyone is near Knoxville Tn and is looking for antenna aluminum and stuff (or wants to drive here from elsewhere), I have stuff going up to 6" OD (makes a nice low band vertical). Hope everyone is having a nice holiday weekend! 73, Julius Fazekas N2WN Elecraft K3/100 #366 Elecraft K3/100 #4461 From aa4lr at arrl.net Sun Sep 6 16:08:20 2020 From: aa4lr at arrl.net (Bill Coleman) Date: Sun, 6 Sep 2020 16:08:20 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m In-Reply-To: References: Message-ID: <71957C8D-4DE6-4947-A91F-C9EA2B2FB44E@arrl.net> OK, I figured this out, sort of. Every time I?ve had trouble with the KAT3 not tuning, the K3 has been in split mode. By taking the K3 out of split mode, I?m able to turn on 6m correctly. Oddly, though, when I return to split mode, it still works. I?m not sure why I see this issue, but I?m glad I can work around it. Split mode is often configured due to the WSJT-X settings, depending on the frequencies used. > On Sep 5, 2020, at 9:01 PM, w4sc wrote: > > Bill, > > I had an issue very similar. The ?Automatic TXGain? procedure is performed at 52 MHz. I was using a 50 ohm load attached, and at 50.125 the KAT3 have trouble matching the load. Also it appears there is not enough power out in the lower part of the band for the SWR bridge to function. > > Part of the problem is I believe, the f/w switches the KPA3 ON at 8 watts instead of the usual 12???.. > > Performing a MANUAL TX Gain procedure on 6M may help. > > Here is link to post I made several weeks ago. > > https://www.mail-archive.com/elecraft at mailman.qth.net/msg241436.html > > 73 de Ben W4SC > > Sent from Mail for Windows 10 Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 From tom at w7sua.org Sun Sep 6 16:37:53 2020 From: tom at w7sua.org (Tom Azlin W7SUA) Date: Sun, 6 Sep 2020 13:37:53 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599396452803-0.post@n2.nabble.com> References: <1599396452803-0.post@n2.nabble.com> Message-ID: <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> Nope. Besides I use IMAP so only what I click on gets downloaded. I would rather have all the traffic and the volume does not bother me. Tom w7sua On 9/6/2020 5:47 AM, Barry wrote: > With ever increasing volume, sure to increase exponentially when the K4's > start coming, is it time to replace this list with a forum? > > Yes, emails can be filtered, but does it make sense to download hundreds of > emails when only a handful are of interest due to your equipment inventory? > > Barry W2UP > > > > -- > 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 tom at w7sua.org > From exbpi at comcast.net Sun Sep 6 16:40:27 2020 From: exbpi at comcast.net (exbpi at comcast.net) Date: Sun, 6 Sep 2020 13:40:27 -0700 Subject: [Elecraft] [K3] KAT3 not functioning on 6m In-Reply-To: <71957C8D-4DE6-4947-A91F-C9EA2B2FB44E@arrl.net> References: <71957C8D-4DE6-4947-A91F-C9EA2B2FB44E@arrl.net> Message-ID: <000901d6848d$f4b8df60$de2a9e20$@comcast.net> Bill, Why are you running split in WSJT? The only time you actually need split is when operating 2 different frequencies like working JA's on 160 when they used to be required to transmit on 1908 KHz and we transmitted on 1840 kHZ (they now can operate on 1840). Unless you are actually needing to receive on one frequency and transmit on another, set the radio configuration to "Fake It" instead of "split". That will keep your transmit frequency in the middle of your transmit bandpass. There is no actual frequency change in WSJT including DX expedition mode. GL Mike K7PI -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Bill Coleman Sent: Sunday, September 6, 2020 13:08 To: w4sc Cc: Elecraft Subject: Re: [Elecraft] [K3] KAT3 not functioning on 6m OK, I figured this out, sort of. Every time I?ve had trouble with the KAT3 not tuning, the K3 has been in split mode. By taking the K3 out of split mode, I?m able to turn on 6m correctly. Oddly, though, when I return to split mode, it still works. I?m not sure why I see this issue, but I?m glad I can work around it. Split mode is often configured due to the WSJT-X settings, depending on the frequencies used. > On Sep 5, 2020, at 9:01 PM, w4sc wrote: > > Bill, > > I had an issue very similar. The ?Automatic TXGain? procedure is performed at 52 MHz. I was using a 50 ohm load attached, and at 50.125 the KAT3 have trouble matching the load. Also it appears there is not enough power out in the lower part of the band for the SWR bridge to function. > > Part of the problem is I believe, the f/w switches the KPA3 ON at 8 watts instead of the usual 12???.. > > Performing a MANUAL TX Gain procedure on 6M may help. > > Here is link to post I made several weeks ago. > > https://www.mail-archive.com/elecraft at mailman.qth.net/msg241436.html > > 73 de Ben W4SC > > Sent from Mail for Windows 10 Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to exbpi at comcast.net From gerryleary99 at me.com Sun Sep 6 16:56:19 2020 From: gerryleary99 at me.com (Gerry leary) Date: Sun, 6 Sep 2020 14:56:19 -0600 Subject: [Elecraft] Putting NHF station in a Honda odyssey Message-ID: Hello Ella crafters, I just got myself a 2004 Honda Odyssey. I?m getting ready to put an HF station, and her UHF station in it. Has anybody had experience with these cars in relationship to noise when putting transceivers in, and if so could you possibly give me suggestions. Gerry Leary WB6 IVF Sent from my iPhone this time From phystad at mac.com Sun Sep 6 17:25:34 2020 From: phystad at mac.com (Phil Hystad) Date: Sun, 6 Sep 2020 14:25:34 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> Message-ID: <27B714AC-252F-44F6-B0BE-C9D71CFF54B6@mac.com> If there were an alternative to e-mail for the kind of dialog that takes place on this e-mail reflector I think the style and format, along with operating rules, of the Stack Exchange forums would be a great fit. Now, I don?t think Stack Exchange would allow a vendor directed forum and there is already a Ham Radio forum which is not that good in my opinion but the way the software works, the organization, the division of posted questions with answers and the voting to rank answers (and even questions) is very good. Each forum also has a chat mode for back & forth dribble that might come up now and then. If you have not visited a stack exchange forum, consider some of the following which I list merely because these are some I follow. https://physics.stackexchange.com https://ham.stackexchange.com https://math.stackexchange.com And, this last link is a sort of directory of available SE topic areas: https://stackexchange.com/sites 73, phil, K7PEH > On Sep 6, 2020, at 1:37 PM, Tom Azlin W7SUA wrote: > > Nope. > > Besides I use IMAP so only what I click on gets downloaded. > > I would rather have all the traffic and the volume does not bother me. > > Tom w7sua > > On 9/6/2020 5:47 AM, Barry wrote: >> With ever increasing volume, sure to increase exponentially when the K4's >> start coming, is it time to replace this list with a forum? >> Yes, emails can be filtered, but does it make sense to download hundreds of >> emails when only a handful are of interest due to your equipment inventory? >> Barry W2UP >> -- >> 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 tom at w7sua.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 phystad at mac.com From ab7echo at gmail.com Sun Sep 6 17:25:51 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 6 Sep 2020 14:25:51 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> Message-ID: <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> Text email downloads take a trivial amount of time and bandwidth. Filters (either software or mental) easily take care of the rest. And as others have pointed out, there is already a K4 forum on .io ..... why doesn't that work for you?? Dave?? AB7E >> Yes, emails can be filtered, but does it make sense to download >> hundreds of >> emails when only a handful are of interest due to your equipment >> inventory? >> >> Barry W2UP From kthreebo at gmail.com Sun Sep 6 17:31:39 2020 From: kthreebo at gmail.com (barry halterman) Date: Sun, 6 Sep 2020 17:31:39 -0400 Subject: [Elecraft] KRC2 wanted Message-ID: Anyone have a KRC2 in working condx willing to sell, built or unbuilt? Contact me off the forum please. Thx Barry From w2up at comcast.net Sun Sep 6 18:03:57 2020 From: w2up at comcast.net (Barry) Date: Sun, 6 Sep 2020 15:03:57 -0700 (MST) Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> Message-ID: <1599429837450-0.post@n2.nabble.com> David Gilbert-2 wrote > And as others have pointed out, there is already a K4 forum on .io ..... > why doesn't that work for you?? > > Dave?? AB7E Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 traffic that will be comping. Barry W2UP -- Sent from: http://elecraft.365791.n2.nabble.com/ From aa4lr at arrl.net Sun Sep 6 18:48:41 2020 From: aa4lr at arrl.net (Bill Coleman) Date: Sun, 6 Sep 2020 18:48:41 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m In-Reply-To: <000901d6848d$f4b8df60$de2a9e20$@comcast.net> References: <71957C8D-4DE6-4947-A91F-C9EA2B2FB44E@arrl.net> <000901d6848d$f4b8df60$de2a9e20$@comcast.net> Message-ID: This is a feature of WSJT-X. If you have the Split Operation selection set to ?Rig?, WSJT-X will always use Split mode. It sets the transmit frequency higher or lower in 500 Hz increments. The main reason for this is to keep the generated audio in the middle of the SSB passband, but high enough to allow harmonics to be outside the passband. So, for example, if you select 400 Hz as your transmit frequency, WSJT-X will set the TX frequency 1.5 kHz lower, and then generate transmission tones around 1900 Hz. If you set the frequency to 2000 Hz, it will set the TX frequency 500 Hz higher, but the tone generated is about 1500 Hz. The net result is the same ? the transmitted tones are always between 1500-1999 Hz. And even if you select a transmit frequency between 1500-1999 Hz, WSJT-X will always use split operation. (Although in this case, the RX and TX frequency will be identical) > On Sep 6, 2020, at 4:40 PM, wrote: > > Bill, > > Why are you running split in WSJT? The only time you actually need split is when operating 2 different frequencies like working JA's on 160 when they used to be required to transmit on 1908 KHz and we transmitted on 1840 kHZ (they now can operate on 1840). Unless you are actually needing to receive on one frequency and transmit on another, set the radio configuration to "Fake It" instead of "split". That will keep your transmit frequency in the middle of your transmit bandpass. There is no actual frequency change in WSJT including DX expedition mode. > > GL > > Mike > K7PI > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Bill Coleman > Sent: Sunday, September 6, 2020 13:08 > To: w4sc > Cc: Elecraft > Subject: Re: [Elecraft] [K3] KAT3 not functioning on 6m > > OK, I figured this out, sort of. > > Every time I?ve had trouble with the KAT3 not tuning, the K3 has been in split mode. > > By taking the K3 out of split mode, I?m able to turn on 6m correctly. > > Oddly, though, when I return to split mode, it still works. > > I?m not sure why I see this issue, but I?m glad I can work around it. > > Split mode is often configured due to the WSJT-X settings, depending on the frequencies used. > >> On Sep 5, 2020, at 9:01 PM, w4sc wrote: >> >> Bill, >> >> I had an issue very similar. The ?Automatic TXGain? procedure is performed at 52 MHz. I was using a 50 ohm load attached, and at 50.125 the KAT3 have trouble matching the load. Also it appears there is not enough power out in the lower part of the band for the SWR bridge to function. >> >> Part of the problem is I believe, the f/w switches the KPA3 ON at 8 watts instead of the usual 12???.. >> >> Performing a MANUAL TX Gain procedure on 6M may help. >> >> Here is link to post I made several weeks ago. >> >> https://www.mail-archive.com/elecraft at mailman.qth.net/msg241436.html >> >> 73 de Ben W4SC >> >> Sent from Mail for Windows 10 > > Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net > Web: http://boringhamradiopart.blogspot.com > Quote: "Not within a thousand years will man ever fly!" > -- Wilbur Wright, 1901 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message delivered to exbpi at comcast.net > Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 From W2xj at w2xj.net Sun Sep 6 18:53:01 2020 From: W2xj at w2xj.net (W2xj) Date: Sun, 6 Sep 2020 18:53:01 -0400 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599429837450-0.post@n2.nabble.com> References: <1599429837450-0.post@n2.nabble.com> Message-ID: then build a filter. Sent from my iPad > On Sep 6, 2020, at 6:04 PM, Barry wrote: > > ?David Gilbert-2 wrote >> And as others have pointed out, there is already a K4 forum on .io ..... >> why doesn't that work for you?? >> >> Dave AB7E > > Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 > traffic that will be comping. > > Barry W2UP > > > > -- > 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 ab7echo at gmail.com Sun Sep 6 19:52:45 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 6 Sep 2020 16:52:45 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599429837450-0.post@n2.nabble.com> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> Message-ID: <4a67ebde-4098-d102-a8a9-5f77722e2f07@gmail.com> Ahh.? Well then, I'd bet quite a lot of money that 95+% of that traffic will have "K4" in the header and easily be sent directly to your trash bin.? You'll never even see it. 73, Dave?? AB7E On 9/6/2020 3:03 PM, Barry wrote: > David Gilbert-2 wrote >> And as others have pointed out, there is already a K4 forum on .io ..... >> why doesn't that work for you?? >> >> Dave?? AB7E > Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 > traffic that will be comping. > > Barry W2UP > > From pe1hzg at xs4all.nl Sun Sep 6 19:54:26 2020 From: pe1hzg at xs4all.nl (Geert Jan de Groot) Date: Mon, 7 Sep 2020 01:54:26 +0200 Subject: [Elecraft] 2 different 144MHz transveters and CAT selection In-Reply-To: References: Message-ID: <383ce6e3-7b39-632c-95ad-76ff18e436d4@xs4all.nl> > I have an unusual situation in that I have 2 different 2m transverters > attached to my K3S. > One system is a dual channel ME2T-XP and uses the SUB RX, this is only used > for EME and it designated XV1. > The second is used on tropo/terrestrial DX and contests and is an > ME2T-ProII, this is XV2. > > If I use WSJT-X and use CAT I have a problem in that a CAT selection for > 144MHz always chooses XV1 which is not what I want at all most of the time. > There are gain and LO offset configurations that mean that using a switch in > the IF is not ideal. > > Currently my solution is to set the RF frequency for XV1 to 70 MHz > temporarily which always confuses me when I want to go on 2m EME. What would > be ideal would be some way of setting the CAT XV priority from the front > panel. I think that this must be a firmware update, its an easy one but of > course would be low down the list. Using a K3 for QO100 operation, I set the display to 89.xxxx MHz, not 10489.xxxx MHz. Easier to type, and the frequency display doesn't get clobbered by useless digits. If I go to fine tune mode, the frequency still fits on the display. In similar vein, you could consider defining one of the transverters as 44.xxx MHz instead of 144.xxx MHz. I expect CAT will work then? But, I have my gripes with K3 and transverters. The K3 firmware is buggy: if you only define transverter bands to work on and switch off the HF bands, then the band-up and band-down switch behaves strange, selecting bands that I disabled (80m and 10m, both disabled). It should switch between transverter bands but doesn't. I reported this quite a while back but no planning was given to fix this (a trivial fix, especially useful for people using transverters) I wonder if Elecraft will ever fix this (given that all effort is now on K4), and frankly this doesn't bode well for the K4: if there is a K5, will the K4 stop getting fixes? Also, given that Elecraft stopped making transverters a long time ago, I'm hoping they will make the contents of U4 of the XV series available. This would allow my transverters to talk to the K3 using the AUX bus, and I can think of a few ways where this would improve integration. I've considered reverse-engineering but apart from Elecraft probably frowning on that, haven't had the time (yet). But, don't knock it, this is how the DSP option became available for the K2... 73, Geert Jan PE1HZG From g4gnx at g4gnx.com Sun Sep 6 20:00:43 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Mon, 07 Sep 2020 00:00:43 +0000 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <4a67ebde-4098-d102-a8a9-5f77722e2f07@gmail.com> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> <4a67ebde-4098-d102-a8a9-5f77722e2f07@gmail.com> Message-ID: I'd bet quite a lot that it will only be 50% because most contributors are too lazy to change the header. 73, Alan. G4GNX ------ Original Message ------ From: "David Gilbert" To: elecraft at mailman.qth.net Sent: 07/09/2020 00:52:45 Subject: Re: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? > >Ahh. Well then, I'd bet quite a lot of money that 95+% of that traffic will have "K4" in the header and easily be sent directly to your trash bin. You'll never even see it. > >73, >Dave AB7E > > >On 9/6/2020 3:03 PM, Barry wrote: >>David Gilbert-2 wrote >>>And as others have pointed out, there is already a K4 forum on .io ..... >>>why doesn't that work for you?? >>> >>>Dave AB7E >>Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 >>traffic that will be comping. >> >>Barry W2UP >> >> From nr4c at widomaker.com Sun Sep 6 20:05:15 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 6 Sep 2020 20:05:15 -0400 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599429837450-0.post@n2.nabble.com> References: <1599429837450-0.post@n2.nabble.com> Message-ID: Hmmm... ?DELETE? is your friend. Sent from my iPhone ...nr4c. bill > On Sep 6, 2020, at 6:05 PM, Barry wrote: > > ?David Gilbert-2 wrote >> And as others have pointed out, there is already a K4 forum on .io ..... >> why doesn't that work for you?? >> >> Dave AB7E > > Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 > traffic that will be comping. > > Barry W2UP > > > > -- > 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 dave at nk7z.net Sun Sep 6 20:09:05 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 6 Sep 2020 17:09:05 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> <4a67ebde-4098-d102-a8a9-5f77722e2f07@gmail.com> Message-ID: Yes... I wish most folks would follow the convention of putting the device name in the subject... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 9/6/20 5:00 PM, Alan - G4GNX wrote: > I'd bet quite a lot that it will only be 50% because most contributors > are too lazy to change the header. > > 73, > > Alan. G4GNX > > > ------ Original Message ------ > From: "David Gilbert" > To: elecraft at mailman.qth.net > Sent: 07/09/2020 00:52:45 > Subject: Re: [Elecraft] With the K4 coming, is it time to replace this > email list with a forum? > >> >> Ahh.? Well then, I'd bet quite a lot of money that 95+% of that >> traffic will have "K4" in the header and easily be sent directly to >> your trash bin.? You'll never even see it. >> >> 73, >> Dave?? AB7E >> >> >> On 9/6/2020 3:03 PM, Barry wrote: >>> David Gilbert-2 wrote >>>> And as others have pointed out, there is already a K4 forum on .io >>>> ..... >>>> why doesn't that work for you?? >>>> >>>> Dave?? AB7E >>> Because I'm not looking for a K4 forum.? I'm looking to AVOID all the K4 >>> traffic that will be comping. >>> >>> 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 dave at nk7z.net From wes_n7ws at triconet.org Sun Sep 6 20:16:37 2020 From: wes_n7ws at triconet.org (Wes) Date: Sun, 6 Sep 2020 17:16:37 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: References: <1599429837450-0.post@n2.nabble.com> Message-ID: <344ec92f-1c57-aa4f-13fe-807406b96e4c@triconet.org> Some people have no friends, they just want to whine and complain. Wes? N7WS On 9/6/2020 5:05 PM, Nr4c wrote: > Hmmm... ?DELETE? is your friend. > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 6, 2020, at 6:05 PM, Barry wrote: >> >> ?David Gilbert-2 wrote >>> And as others have pointed out, there is already a K4 forum on .io ..... >>> why doesn't that work for you?? >>> >>> Dave AB7E >> Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 >> traffic that will be comping. >> >> Barry W2UP >> From tombewick at gmail.com Sun Sep 6 20:17:50 2020 From: tombewick at gmail.com (Thomas Bewick) Date: Sun, 6 Sep 2020 20:17:50 -0400 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <4a67ebde-4098-d102-a8a9-5f77722e2f07@gmail.com> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> <4a67ebde-4098-d102-a8a9-5f77722e2f07@gmail.com> Message-ID: Actually I'm finding the discussion about the discussion of k4s is more annoying than the discussion of k4's. Just hit delete. Tom k2bew On Sun, Sep 6, 2020, 19:54 David Gilbert wrote: > > Ahh. Well then, I'd bet quite a lot of money that 95+% of that traffic > will have "K4" in the header and easily be sent directly to your trash > bin. You'll never even see it. > > 73, > Dave AB7E > > > On 9/6/2020 3:03 PM, Barry wrote: > > David Gilbert-2 wrote > >> And as others have pointed out, there is already a K4 forum on .io ..... > >> why doesn't that work for you?? > >> > >> Dave AB7E > > Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 > > traffic that will be comping. > > > > 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 tombewick at gmail.com From vk1zzgary at gmail.com Sun Sep 6 20:18:50 2020 From: vk1zzgary at gmail.com (Gary Gregory) Date: Mon, 07 Sep 2020 10:18:50 +1000 Subject: [Elecraft] K2 buttons Message-ID: <-xdzcy7tw5dfy-a7hozp-rsyjbp-wtf4ixp2z7d9yg22gr7v65s6pqcfe7zhj3di-qlnjfe-9x8h79qxo1xm-gxpea9etmtrz-228eg5wlljw7-jlvxhn-vnhlc6555jkcuv4o2t-3gtacx589mjex93exs.1599437930179@email.android.com> From w2up at comcast.net Sun Sep 6 22:06:01 2020 From: w2up at comcast.net (Barry) Date: Sun, 6 Sep 2020 19:06:01 -0700 (MST) Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> Message-ID: <1599444361141-0.post@n2.nabble.com> My point is there's no need to hit a DELETE key in a forum with a list of subject titles that one may choose to read, or not. Email lists are 1980s technology. Barry W2UP Nr4c wrote > Hmmm... ?DELETE? is your friend. > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 6, 2020, at 6:05 PM, Barry < > w2up@ > > wrote: >> >> ?David Gilbert-2 wrote >>> And as others have pointed out, there is already a K4 forum on .io ..... >>> why doesn't that work for you?? >>> >>> Dave AB7E >> >> Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 >> traffic that will be comping. >> >> Barry W2UP >> >> >> >> -- >> 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 .qth >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to > nr4c@ > ______________________________________________________________ > 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 john at kk9a.com Sun Sep 6 22:16:35 2020 From: john at kk9a.com (john at kk9a.com) Date: Sun, 6 Sep 2020 22:16:35 -0400 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? Message-ID: <000b01d684bc$e9a0b5b0$bce22110$@com> There is no reason to hit a DELETE key with the current system. I do not receive a single email from this list. I just read the posts of interest in the archives: http://mailman.qth.net/pipermail/elecraft/ John KK9A Barry w2up wrote: My point is there's no need to hit a DELETE key in a forum with a list of subject titles that one may choose to read, or not. Email lists are 1980s technology. Barry W2UP From nr4c at widomaker.com Sun Sep 6 22:23:40 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 6 Sep 2020 22:23:40 -0400 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599444361141-0.post@n2.nabble.com> References: <1599444361141-0.post@n2.nabble.com> Message-ID: My point is, it ain?t gonna happen. Sent from my iPhone ...nr4c. bill > On Sep 6, 2020, at 10:08 PM, Barry wrote: > > ?My point is there's no need to hit a DELETE key in a forum with a list of > subject titles that one may choose to read, or not. Email lists are 1980s > technology. > Barry W2UP > > > Nr4c wrote >> Hmmm... ?DELETE? is your friend. >> >> Sent from my iPhone >> ...nr4c. bill >> >> >>> On Sep 6, 2020, at 6:05 PM, Barry < > >> w2up@ > >> > wrote: >>> >>> ?David Gilbert-2 wrote >>>> And as others have pointed out, there is already a K4 forum on .io ..... >>>> why doesn't that work for you?? >>>> >>>> Dave AB7E >>> >>> Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 >>> traffic that will be comping. >>> >>> Barry W2UP >>> >>> >>> >>> -- >>> 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 .qth > >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to > >> nr4c@ > >> ______________________________________________________________ >> 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 nr4c at widomaker.com From wunder at wunderwood.org Mon Sep 7 00:21:08 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Sun, 6 Sep 2020 21:21:08 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599444361141-0.post@n2.nabble.com> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> <1599444361141-0.post@n2.nabble.com> Message-ID: <30862243-30E6-4D23-B8F7-AA4076FA8F0B@wunderwood.org> In the late 1980s, I was managing forums for about 5000 Hewlett-Packard engineers. A modern merged forum/email system (like groups.io ) is excellent, but if I had to choose, I?d choose email every time. wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Sep 6, 2020, at 7:06 PM, Barry wrote: > > My point is there's no need to hit a DELETE key in a forum with a list of > subject titles that one may choose to read, or not. Email lists are 1980s > technology. > Barry W2UP > > Nr4c wrote >> Hmmm... ?DELETE? is your friend. >> >> Sent from my iPhone >> ...nr4c. bill >> >> >>> On Sep 6, 2020, at 6:05 PM, Barry < > >> w2up@ > >> > wrote: >>> >>> ?David Gilbert-2 wrote >>>> And as others have pointed out, there is already a K4 forum on .io ..... >>>> why doesn't that work for you?? >>>> >>>> Dave AB7E >>> >>> Because I'm not looking for a K4 forum. I'm looking to AVOID all the K4 >>> traffic that will be comping. >>> >>> Barry W2UP >>> >>> >>> >>> -- >>> 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 .qth > >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to > >> nr4c@ > >> ______________________________________________________________ >> 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 wunder at wunderwood.org From kevinr at coho.net Mon Sep 7 01:13:03 2020 From: kevinr at coho.net (kevinr) Date: Sun, 6 Sep 2020 22:13:03 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: Good Evening, ?? Conditions on both bands was OK.? Not a lot of noise, some QSB, signals were easy copy.? Weather reports varied, to put it mildly :)? Frost and snow along with smoke and 113 degree temperatures.? There will be a lot of wind with a temperature differential like that.? We are due for a week of high, to extreme, fire danger here in Oregon.? All of the recent clearcuts make life safer.? However, the hunters are now out searching for the deer and elk.? My twenty acres of tall trees draws each of the three species. ? On 14050.5 kHz at 2200z: W0CZ - Ken - ND K6XK - Roy - IA K0DTJ - Brian - CA KL7CW - Rick - AK NO8V - John - MI K4JPN - Steve GA AE7US - Rocky - OR AC5P - Mike - OK ? On 7047.5 kHz at 0045z: W0CZ - Ken - ND K0DTJ - Brian - CA WM5F - Dwight - ID KL7CW - Rick - AK K6PJV - Dale - CA AE7US - Rocky - OR ? Until next week stay safe from the fires, the wind, and the snow.? Stay hydrated too, that always helps :) ????? 73,? Kevin.? KD5ONS - From john_n1jm at outlook.com Mon Sep 7 01:55:01 2020 From: john_n1jm at outlook.com (John_N1JM) Date: Sun, 6 Sep 2020 22:55:01 -0700 (MST) Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> <1599444361141-0.post@n2.nabble.com> Message-ID: <1599458101227-0.post@n2.nabble.com> I use and go to Nabble. No emails from the list come to me. John N1JM Nr4c wrote > My point is, it ain?t gonna happen. > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 6, 2020, at 10:08 PM, Barry < > w2up@ > > wrote: >> >> ?My point is there's no need to hit a DELETE key in a forum with a list >> of >> subject titles that one may choose to read, or not. Email lists are >> 1980s >> technology. >> Barry W2UP >> >> >> Nr4c wrote >>> Hmmm... ?DELETE? is your friend. >>> >>> Sent from my iPhone >>> ...nr4c. bill >>> >>> >>>> On Sep 6, 2020, at 6:05 PM, Barry < >> >>> w2up@ >> >>> > wrote: >>>> >>>> ?David Gilbert-2 wrote >>>>> And as others have pointed out, there is already a K4 forum on .io >>>>> ..... >>>>> why doesn't that work for you?? >>>>> >>>>> Dave AB7E >>>> >>>> Because I'm not looking for a K4 forum. I'm looking to AVOID all the >>>> K4 >>>> traffic that will be comping. >>>> >>>> Barry W2UP >>>> >>>> >>>> >>>> -- >>>> 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 .qth >> >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to >> >>> nr4c@ >> >>> ______________________________________________________________ >>> 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 .qth >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to > nr4c@ > ______________________________________________________________ > 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 brian at kf6c.com Mon Sep 7 07:24:13 2020 From: brian at kf6c.com (Brian Comer) Date: Mon, 7 Sep 2020 07:24:13 -0400 Subject: [Elecraft] KX3 what's it worth. Message-ID: <000501d68509$6a7c76f0$3f7564d0$@kf6c.com> I have a KX3, sn 6474, that was mostly used as the tunable IF for 10GHz and up contests. In 2017 it developed a fault with the external TX control line.. This occurred just before the 10 GHz and up contest and I ending up buying a new KX3 and sending this one back to Elecraft for repair. It has sat idle since then. I have not seen what used KX3 are going for recently and ask what is it worth ? I need to make a decision on whether to sell it, or still keep it as a spare. It is a basic KX3 with only the roofing filter added. 73 Brian KF6C. From w2up at comcast.net Mon Sep 7 08:09:10 2020 From: w2up at comcast.net (Barry) Date: Mon, 7 Sep 2020 05:09:10 -0700 (MST) Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599458101227-0.post@n2.nabble.com> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> <1599444361141-0.post@n2.nabble.com> <1599458101227-0.post@n2.nabble.com> Message-ID: <1599480550463-0.post@n2.nabble.com> I use Nabble, too. It's better than email, but it's been broken for years. Often, responses to a topic is split from the original, and 99% of posts wind up in the main section, rather than parsed to the subheadings by radio. Barry W2UP John_N1JM wrote > I use and go to Nabble. No emails from the list come to me. > > John N1JM -- Sent from: http://elecraft.365791.n2.nabble.com/ From n7wy at rocketmail.com Mon Sep 7 08:35:35 2020 From: n7wy at rocketmail.com (Robert Rennard) Date: Mon, 7 Sep 2020 06:35:35 -0600 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? Message-ID: I agree with Dave that we should start putting the Elecraft product model as the first token in the mail header; e,g, K4, and stop lazily recycling a prior header with a totally different topic in the body. Of course, worse yet is somebody responding to a digest such that we get the entirety of the digest the reflector sent to him. As Bill Nye, the science guy, said recently, ?Common sense is not all that common?. One thing I like about groups.io which currently has a K4 forum, is that it allows using hash tags as the first part of the topic line so that I can filter out topics that do not interest me. In the case of my local radio club, I use a #DMR filter, and they make me apply a #HF hash tag. Bob R ? N7WY From rdewan at me.com Mon Sep 7 08:59:47 2020 From: rdewan at me.com (Rajiv Dewan) Date: Mon, 7 Sep 2020 08:59:47 -0400 Subject: [Elecraft] K3/0 and RRC 1258MkIIs for sale Message-ID: <3CB1FCFF-D663-4639-8D3A-29B094664836@me.com> Hello, I have a K3/0 and a Microbit RRC1258 Mk-ii-s for sale. $600 post paid CONUS. Thanks, Raj, N2RD From jon.kd3gz at gmail.com Mon Sep 7 09:02:43 2020 From: jon.kd3gz at gmail.com (Derek Brook) Date: Mon, 7 Sep 2020 09:02:43 -0400 Subject: [Elecraft] For sale Message-ID: *K2/100* *Includes :-* *KPA100 Amp* *KAT100-1 Tuner* *KSB2 SSB* *KNB2 NB* *MH4 Mic* *K160 RX* *Complete with cables & manuals It is set up as the twins.* *Asking $1000 + shipping (firm)* *73, derek KD3GZ* From bjorn at ekelund.nu Mon Sep 7 09:09:34 2020 From: bjorn at ekelund.nu (=?UTF-8?Q?Bj=C3=B6rn_Ekelund?=) Date: Mon, 7 Sep 2020 15:09:34 +0200 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <20200907123625.C53DD149B43D@mail.qsl.net> References: <20200907123625.C53DD149B43D@mail.qsl.net> Message-ID: I subscribe to about two dozen email reflectors, this one being the only one that is not on groups.io. I think a move is long overdue. Bj?rn SM7IUN Den m?n 7 sep. 2020 kl 14:36 skrev Robert Rennard via Elecraft < elecraft at mailman.qth.net>: > I agree with Dave that we should start putting the Elecraft product model > as the first token in the mail header; e,g, K4, and stop lazily recycling > a prior header with a totally different topic in the body. Of course, > worse yet is somebody responding to a digest such that we get the entirety > of the digest the reflector sent to him. As Bill Nye, the science guy, > said recently, ?Common sense is not all that common?. > > One thing I like about groups.io which currently has a K4 forum, is that > it allows using hash tags as the first part of the topic line so that I can > filter out topics that do not interest me. In the case of my local radio > club, I use a #DMR filter, and they make me apply a #HF hash tag. > > Bob R ? N7WY > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to bjorn at ekelund.nu From w4sc at windstream.net Mon Sep 7 09:50:03 2020 From: w4sc at windstream.net (w4sc) Date: Mon, 7 Sep 2020 09:50:03 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m Message-ID: Bill, The K3 only allows the ?split? mode for SSB and/or CW to be enabled, at least from panel. Trying to enable split in any other mode, the VFO B window flashes ?N/A?. You may have different indications / results if the split command is sent via the CAT, and a mode other than CW or SSB is selected. Ben W4SC Sent from Mail for Windows 10 From sm.shearer.01 at gmail.com Mon Sep 7 11:08:34 2020 From: sm.shearer.01 at gmail.com (stephen shearer) Date: Mon, 7 Sep 2020 11:08:34 -0400 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: References: <1599429837450-0.post@n2.nabble.com> Message-ID: I use Thunderbird for my email. I filter almost everything into one folder or another.? Works great I filter[Elecraft] and {Elecraft-K4] with any K4 "stuff" in the subject line, into a K4 folder. *It could just as easily go into the trash...* Thunderbird does this automatically about every 10 minutes. New mail in a folder has a hi-lighted folder and mail count. easy. YES, a good subject line helps. 73, steve WB3LGC On 9/6/20 6:53 PM, W2xj wrote: > *then build a filter. * > > Sent from my iPad > >> On Sep 6, 2020, at 6:04 PM, Barry wrote: >> >> ?David Gilbert-2 wrote >>> And as others have pointed out, there is already a K4 forum on .io ..... >>> why doesn't that work for you?? >>> >>> Dave AB7E >> Because I'm not looking for a K4 forum.*I'm looking to AVOID all the K4* >> traffic that will be comping. >> >> Barry W2UP >> >> >> >> -- >> 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 > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 cbjesseeNH at comcast.net Mon Sep 7 11:27:33 2020 From: cbjesseeNH at comcast.net (MaverickNH) Date: Mon, 7 Sep 2020 08:27:33 -0700 (MST) Subject: [Elecraft] FS - LP-PAN 2 with K3 Crystal Message-ID: <1599492453538-0.post@n2.nabble.com> FS - LP PAN 2 with K3 crystal SN 02964 Excellent condition, no scratches or dents. ASUS XONAR U7 included. $100 shipped CONUS. Contact off-list Bret/N4SRN -- Sent from: http://elecraft.365791.n2.nabble.com/ From K6RV at earthlink.net Mon Sep 7 12:23:31 2020 From: K6RV at earthlink.net (Donald Schliesser) Date: Mon, 7 Sep 2020 11:23:31 -0500 Subject: [Elecraft] PR6 Preamp has been sold Message-ID: <06490952-3694-87d2-60b8-eec361a3531e@earthlink.net> Thanks for the bandwidth. 73, Donald K6RV From ve3iay at gmail.com Mon Sep 7 13:21:18 2020 From: ve3iay at gmail.com (Richard Ferch) Date: Mon, 7 Sep 2020 13:21:18 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m Message-ID: The K3 allows split in data modes, but only provided both VFOs are already in data mode. The K3 will not allow cross-mode split between Data and CW/SSB. If you are seeing "SPL N/A" when you try to enable split with VFO A in a Data mode, what that tells me is that VFO B is in CW or SSB, not in Data mode. When VFO B is not already in the same mode as VFO A, tap A>B twice to transfer the VFO A mode into VFO B before pressing Split. 73, Rich VE3KI W4SC said: The K3 only allows the "split" mode for SSB and/or CW to be enabled, at least from \ panel. Trying to enable split in any other mode, the VFO B window flashes "N/A". \ You may have different indications / results if the split command is sent via the \ CAT, and a mode other than CW or SSB is selected. From aa4lr at arrl.net Mon Sep 7 13:35:56 2020 From: aa4lr at arrl.net (Bill Coleman) Date: Mon, 7 Sep 2020 13:35:56 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m In-Reply-To: References: Message-ID: No, that?s not it. The right is ALREADY in split mode when i attempt to use the auto-tune. You get the N/A flash if VFO A and B aren?t set to the same mode, other than SSB/CW. WSJT-X sets it up correctly, with both VFOs in DATA mode. > On Sep 7, 2020, at 9:50 AM, w4sc wrote: > > Bill, > > The K3 only allows the ?split? mode for SSB and/or CW to be enabled, at least from panel. Trying to enable split in any other mode, the VFO B window flashes ?N/A?. You may have different indications / results if the split command is sent via the CAT, and a mode other than CW or SSB is selected. > > Ben W4SC > > Sent from Mail for Windows 10 Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 From MJGillen at yahoo.com Mon Sep 7 13:40:29 2020 From: MJGillen at yahoo.com (Michael Gillen) Date: Mon, 7 Sep 2020 10:40:29 -0700 Subject: [Elecraft] [P3] REF LVL changes - normal behavior? In-Reply-To: References: Message-ID: Hey guys, I am seeing this behavior on my P3 and am wondering if this is how it's supposed to work or or there is something wrong. I set the REF LVL so I am just above the noise floor and then randomly a few minutes later either the floor goes way down or way up. In other words, I adjust the waterfall to show normal then randomly it will show nothing at all except the strongest peaks as if I adjusted the REF LVL way up or it shows a lot of noise as if I adjusted the REF LVL way down. So I have to keep an eye on it and constantly adjust the REF LVL. Its been doing this for the past 6 months or so it didn?t always do this. The P3 is connected to my K3s which is having no problems. ATT is on, pre-amp off, AGC is fast. Cheers! Michael KK6RWK From n7tb at comcast.net Mon Sep 7 14:35:23 2020 From: n7tb at comcast.net (Terry Brown) Date: Mon, 7 Sep 2020 11:35:23 -0700 Subject: [Elecraft] KXPA100 Power Out Issue Message-ID: <004801d68545$a69f6570$f3de3050$@comcast.net> I have noticed over the past weeks that my KXPA100 will not put out any more than 70-80 watts when I am running my KX3 showing 100 watts output. The attenuator is not on. I have two antennas. One is a 3 element yagi that is below 1.2:1 on all bands without the tuner, so when I tune, it just tweaks it. Still only 80 W out. My other antenna is a MyAntennas 10-80 EFHW, also resonant below 1.5:1 on 80 and 40, the primary bands I operate on. I get 70 watts out on that antenna. Everything is grounded properly. This is a fairly recent issue. I have tried the amp with my KX2 as well, to make sure it is an amp problem and not a radio problem, and I get the same result of reduced power output. Any thoughts? Thanks, Terry N7TB From k6dgw at foothill.net Mon Sep 7 14:43:29 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Mon, 7 Sep 2020 11:43:29 -0700 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <1599444361141-0.post@n2.nabble.com> References: <1599396452803-0.post@n2.nabble.com> <64ba8324-2914-10a6-aeaf-996afffb8c7e@w7sua.org> <19d648da-cdc7-b678-95ca-48a11dc0c1d3@gmail.com> <1599429837450-0.post@n2.nabble.com> <1599444361141-0.post@n2.nabble.com> Message-ID: Hmmm ... The International Morse Code is 1905 technology, and the American Morse [Vail] Code is 1840's.? You're suggesting we should all abandon CW because it's old technology? [;=) 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County CWops #142 On 9/6/2020 7:06 PM, Barry wrote: > My point is there's no need to hit a DELETE key in a forum with a list of > subject titles that one may choose to read, or not. Email lists are 1980s > technology. > Barry W2UP > > From ghyoungman at gmail.com Mon Sep 7 15:02:55 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Mon, 7 Sep 2020 15:02:55 -0400 Subject: [Elecraft] KXPA100 Power Out Issue In-Reply-To: <004801d68545$a69f6570$f3de3050$@comcast.net> References: <004801d68545$a69f6570$f3de3050$@comcast.net> Message-ID: <24A244C5-6FE9-47ED-8EA2-9015A5A36EE6@gmail.com> Have you done/redone the Power Output Display Calibration? See Appendix B in the manual. Grant NQ5T > On Sep 7, 2020, at 2:35 PM, Terry Brown wrote: > > I have noticed over the past weeks that my KXPA100 will not put out any more > than 70-80 watts when I am running my KX3 showing 100 watts output. The > attenuator is not on. I have two antennas. One is a 3 element yagi that is > below 1.2:1 on all bands without the tuner, so when I tune, it just tweaks > it. Still only 80 W out. My other antenna is a MyAntennas 10-80 EFHW, also > resonant below 1.5:1 on 80 and 40, the primary bands I operate on. I get 70 > watts out on that antenna. Everything is grounded properly. This is a > fairly recent issue. > > > > I have tried the amp with my KX2 as well, to make sure it is an amp problem > and not a radio problem, and I get the same result of reduced power output. > > > > Any thoughts? > > > > Thanks, > > > > Terry > > N7TB > > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 k7sss at aol.com Mon Sep 7 16:04:41 2020 From: k7sss at aol.com (k7sss at aol.com) Date: Mon, 7 Sep 2020 20:04:41 +0000 (UTC) Subject: [Elecraft] KXPA100 Power Out Issue In-Reply-To: <004801d68545$a69f6570$f3de3050$@comcast.net> References: <004801d68545$a69f6570$f3de3050$@comcast.net> Message-ID: <1524164702.3185252.1599509081553@mail.yahoo.com> Hi,The Operators manual rev A7, says a minimum of 13.8 v to get !00 W output. There have been several posts in the past that if the dc is less than 13.8 results in less than 100 w output from the KXPA100.?73Jim HK7SSS?In a message dated 9/7/2020 11:38:19 AM Pacific Standard Time, n7tb at comcast.net writes:? I have noticed over the past weeks that my KXPA100 will not put out any morethan 70-80 watts when I am running my KX3 showing 100 watts output.? Theattenuator is not on.? I have two antennas.? One is a 3 element yagi that isbelow 1.2:1 on all bands without the tuner, so when I tune, it just tweaksit.? Still only 80 W out.? My other antenna is a MyAntennas 10-80 EFHW, alsoresonant below 1.5:1 on 80 and 40, the primary bands I operate on.? I get 70watts out on that antenna.? Everything is grounded properly.? This is afairly recent issue.?I have tried the amp with my KX2 as well, to make sure it is an amp problemand not a radio problem, and I get the same result of reduced power output.?Any thoughts??Thanks,?Terry?N7TB______________________________________________________________? From elanzl at sbcglobal.net Mon Sep 7 16:20:14 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Mon, 7 Sep 2020 20:20:14 +0000 (UTC) Subject: [Elecraft] SSB Net for 9-6-2020 References: <141245774.1197411.1599510014855.ref@mail.yahoo.com> Message-ID: <141245774.1197411.1599510014855@mail.yahoo.com> Here is the list of stations checking in for the SSB Net last Sunday. Thank you to the relay stations for their help in hearing stations that net control cannot hear. Join us on 14.303.5 Sundays at 1800Z. WB9JNZ ? Call???????????? Name????? State?????? Radio????? Serial #?? QRP???????????????????????????????????????? Notes WB9JNZ????????? ?? Eric??????????????? IL??????????????????? K3????????????????? 4017????????????? ???????????????????????????????????????????????? Net Control N6JW??????????????? John???????????? ?? CA????????????????? K3???????????????? ?? 936??????????????? ???????????????????????????????????????????????? Relay Station K8NU/7????????? ?? Carl????????????????? OH/WA????? ? ? Yaesu FT??? ? ? ? 2000????????????? ???????????????????????????????????????????????? N4NRW???????? ?? Roger????????? ? ? ? SC????????????????? K3???????????????? ? 1318????????????? ???????????????????????????????????????????????? Relay Station KB9AVO?????????? Paul????????????? ? ? IN?????????????? ? ? K3S??????????????? 11103??????????? ???????????????????????????????????????????????? WM6P????????????? Steve????????? ? ? ? GA??????????????? ? K3S?????????????? 11453??????????? ???????????????????????????????????????????????? NC0JW???????????? Jim????????????? ?? ? CO??????????????? ? KX3???????????? ? ? 1356????????????? ???????????????????????????????????????????????? Relay Station AE6JV?????????????? Bill????????????????? NH?????????????? ? ? K3???????????????? ? 6299????????????? ???????????????????????????????????????????????? KF7ZN???????????? ? Ron????????????? ?? UT?????????????? ? ? K3S?????????????? 10832??????????? ???????????????????????????????????????????????? W5SV???????????? ?? Dave?????????????? TX??????????????? ? ? K3??????????????? ?? 5354????????????? ???????????????????????????????????????????????? W1DFB?????????? ?? Don??????????????? AZ???????????????? ?? K3?????????????????? 2937????????????? ???????????????????????????????????????????????? KO5V???????????? ? ? Jim???????????????? NM???????????? ? ? ? K2/100??????? ? ? 7225????????????? ???????????????????????????????????????????????? W1NGA????????? ? ? Al?????????????????? CO?????????????? ? ? K3????????????????? 5765????????????? ???????????????????????????????????????????????? N6PGQ????????? ? ? Bob????????????? ?? CA??????????????? ?? K3????????????????? 5891????????????? ???????????????????????????????????????????????? AB7CE????????????? Roy????????????? ? ? MT???????????? ? ? ? K2/100??????? ? ? ?? 40?????????????????? ???????????????????????????????????????????????? W4DML????????? ?? Doug?????????? ? ?? TN??????????????? ? ? K3????????????????? 6433????????????? ???????????????????????????????????????????????? K0DTJ?????????????? Brian??????????? ? ? CA????????????? ? ? ? K3????????????????? 4113????????????? ???????????????????????????????????????????????? WA6USA??????? ?? Tom???????????? ? ? CA??????????????? ? ? K3????????????????? 5388????????????? ???????????????????????????????????????????????? K0JFJ??????????????? Nick????????????? ?? MN????????????? ? ?? K3S?????????????? 11830??????????? ???????????????????????????????????????????????? KC1ACL??????????? Steve????????? ? ? ? NM????????????? ? ?? KX3?????????????? 10677??????????? ???????????????????????????????????????????????? N0MPM???????? ? ? Mike?????????? ? ? ? IA????????????????? ?? K3S????????????? 10514??????????? ???????????????????????????????????????????????? W7QHD????????? ?? Kurt????????????? ? ? AZ???????????????? ?? K2/100??????? ? ? 1538????????????? ???????????????????????????????????????????????? ? WW4JF????????? ?? John????????????????? TN??????????????? ?? K3S?????????????? 11177??????????? ???????????????????????????????????????????????? ? K7JG???????????????? John???????????? ? ? WA?????????????? ? ? KX3???????????? ?? 3519????????????? ???????????????????????????????????????????????? N8SBE????????????? Dave????????? ? ?? ? MI??????????????? ? ?? K3S????????????? 11361??????????? ???????????????????????????????????????????????? KC7FAT???????? ? ? Glenn????????? ? ?? CO??????????????? ? ?? KX3??????????? 110056???????? ???????????????????????????????????????????????? K6VWE???????????? Stan??????????? ? ?? MI????????????????????? K3????????????????? 650??????????????? ???????????????????????????????????????????????? KB3FBR??????????? Joe?????????????????? PA??????????????? ? ?? K2????????????? ? 6178????????????? ???????????????????????????????????????????????? N7YW?????????????? Ken????????????? ? ? AZ???????????????? ? ?? K3??????????????? 8183????????????? ?????????????????????????????????????????????????? ???? From pa0pje at xs4all.nl Mon Sep 7 16:32:51 2020 From: pa0pje at xs4all.nl (Peter Eijlander (PA0PJE)) Date: Mon, 7 Sep 2020 22:32:51 +0200 Subject: [Elecraft] With the K4 coming, is it time to replace this email list with a forum? In-Reply-To: <20200907123712.0E894149B499@mail.qsl.net> References: <20200907123712.0E894149B499@mail.qsl.net> Message-ID: <82bbb9a8-571e-3ee8-77bf-8b92f237d886@xs4all.nl> On 2020-09-07 at 14:35 Robert Rennard via Elecraft wrote: >> I agree with Dave that we should start putting the Elecraft product model as the first token in the mail header This has, and still is a prerequisite nearly from the start of this list... This is what Eric said about using this list in 2008 and please see especially sub 4b as a new item added then: <> Elecraft Mail LIST GUIDELINES For those of you who are new to the list, (and for those of us who have rapidly failing memories..), here is a quick list of things to remember when posting to this list. Please save this for future reference. The most important thing to remember is that this is only a hobby - Let's have fun! 1. YOU MUST BE SUBSCRIBED to the [Elecraft] list TO POST to it. (This is done to stop advertising spammers from hitting the list.) Any postings sent to elecraft at mailman.qth.net by addresses different from the exact ones it shows as subscribers will be rejected. This includes alias (forwarded) addresses like w1xyz at arrl.net. If you use an alias to subscribe you must have it as your from: and return address too. Subscribing with w1aw at arrl.net from your physical address of joe at aol.com will allow you to receive postings, but your postings to the list will be rejected if their from: and reply to: address does not match your subscribe address.. Go to http://mailman.qth.net/mailman/listinfo/elecraft to subscribe and to change your list preferences. To unsubscribe or to change your list preferences (digest, no mail on/off etc.), scroll to the bottom of the page and log in with your subscribed email address and the password that was sent to you by email when you subscribed (and monthly afterwards.) 2. If you want to provide an attachment, .JPG picture or other large file for use on the list, first post it to your personal web page and then post a link to its address in an email to the list. The list strips all attachments to prevent viruses from propagating and to keep the archives at a reasonable size. 3. Please keep the amount of copied text from previous posts to an -ABSOLUTE MINIMUM- in your replies. Always delete -everything- from the prior post except what is necessary to keep your reply in context. Most copied messages can be reduced to one or two sentences to retain context. Remember to delete the email list footer from the previous post and especially avoid copying a long posting and adding 'Me Too!' or something similar. As the number of users on this list grows (over 1500 now) we need to work to minimize information overload... If a reply is -not- of interest to the list, just reply directly to the posting party. 4. EMAIL OVERLOAD: If you are overloaded by the volume of individual messages on the list, You can view the daily Elecraft list messages for each month in web format at: http://www.elecraft.com/elist.html . These archives are updated hourly and list postings by subject. Just click on the ones you are interested into read. You can also set your list email preferences to 'no mail' delivery, which still allows you to post to the list when reading via the digest. You can also change your subscription to the DIGEST version, which sends you a single compilation each day. To change your email list options or to subscribe / unsubscribe, go to: http://mailman.qth.net/mailman/listinfo/elecraft Scroll to the bottom of the page to log into your preferences page and set your mail options to 'no mail'. 4a. Please make an effort to keep list volume under control by resisting the urge to post a comment on every long discussion thread (CW, Soldering etc.) With close to 2,000 list subscribers volume can quickly get out of control if everyone feels the need to comment. while we do not overly restrict the subject matter on this list, please remember that its primary focus is on Elecraft products, and their use. Many people rely on it for pointers on building and troubleshooting their kits. 4b. *** [NEW] When emailing about a specific rig or option, please add the rig/option name(s) to the first part of your email subject line. (K1, K2, K3, KX1 etc.) This will be a huge help for those experiencing email overload and will allow automatic filtering based on subject line. Examples: "Subject: K3, Filter Options" "Subject: KX1, How to use ped portable?" "Subject: XG2, Wow! Its a big help. 5. *** IMPORTANT - PLEASE KEEP ALL POSTINGS CORDIAL. Restrain the urge to email someone admonishing them about a posting. The last thing we want to do is to scare anyone off the list. Overly aggressive postings and negative comments about other posters only serves to scare away new potential list members. Waiting over night before hitting 'send' really helps to put things in perspective.. If you have a complaint about someone or a thread please email it directly to me ( eric(at)elecraft.com ) and I'll address it. 5a. Please do not post publicly or privately asking people to stop a particular thread, no matter how long, off topic or repetitive it gets. Email me instead . I will step in when I feel it is necessary to end a thread. (eric(at)elecraft.com) 5a1. Please exercise restraint in posting when a thread is getting heavily covered. 30 posts on one topic in a day (like the recurring CW thread) is usually excessive. 5b. Please do not post any direct attacks or snide comments directed at a list member. Enthusiastic arguments are encouraged, but please keep everything cordial. Members who verbally attack another (either via the list or via direct email) will be removed from the list. As the 'official' list moderator, I'll jump in as necessary to keep everything orderly. I do this off line and occasionally to the list when it is appropriate. Our goal is to keep the Elecraft list a fun, informative central clearing house for Elecraft information and enthusiasm. 6. Please DO POST your technical questions and comments to the list. Elecraft owners are your best source for quick answers (and they NEVER sleep!) If you don't get the answers you need from the list please email us direct at support(at)elecraft.com , which is our customer service address. We do try to watch the list traffic, but we may not respond to everything immediately and may miss some postings sent to the list or our personal addresses. 7. Please post your experiences with your Elecraft kit, DX worked, crazy ideas, product ideas, complaints (yes - we do want to hear them). 7. Commercial postings are allowed if they relate to Elecraft products, QRP, QRO, home-brewing, building etc. and are of interest to this list's membership. Please keep them as short as possible and provide web links to more detailed information. I'll step in if we feel someone is posting too many messages of this type. 7a. Please limit commercial postings to one per month per offering or product area (i.e. Builder for Hire postings, ham radio related products etc.) 8. Personal attacks, flames, or strongly worded derogatory messages will not be tolerated. (Pausing overnight before pressing the send key really helps..) Please do not criticize postings by others. 9. Send parts requests direct to parts at elecraft.com, not to the list. 10. If you don't get an answer to a question from the list, or by checking the list archives, don't forget to check the Builder's Resource Page at http://www.elecraft.com and our support email address: support at elecraft.com 11. And above all, HAVE FUN!. We hope that this list is both a good technical resource and serves as a Elecraft community gathering place. We enjoy reading it every day and it really helps us keep our energy level high so we can continue getting exciting new kit projects out the door to you! 73, Eric WA6HHQ Elecraft List Moderator So not new at all, I think. 73, Peter - PA0PJE From nr4c at widomaker.com Mon Sep 7 18:08:20 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 7 Sep 2020 18:08:20 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m In-Reply-To: References: Message-ID: <8D24F637-1535-47C2-939A-48D6A0512600@widomaker.com> The K3 will allow Split in Data modes as well. But both VFOs must be in same Mode/sub mode first. Sent from my iPhone ...nr4c. bill > On Sep 7, 2020, at 9:52 AM, w4sc wrote: > > ?Bill, > > The K3 only allows the ?split? mode for SSB and/or CW to be enabled, at least from panel. Trying to enable split in any other mode, the VFO B window flashes ?N/A?. You may have different indications / results if the split command is sent via the CAT, and a mode other than CW or SSB is selected. > > Ben W4SC > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From nr4c at widomaker.com Mon Sep 7 18:09:48 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 7 Sep 2020 18:09:48 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m In-Reply-To: References: Message-ID: The K3 will allow Split in Data modes as well. But both VFOs must be in same Mode/sub mode first. I Sent from my iPhone ...nr4c. bill > On Sep 7, 2020, at 9:52 AM, w4sc wrote: > > ?Bill, > > The K3 only allows the ?split? mode for SSB and/or CW to be enabled, at least from panel. Trying to enable split in any other mode, the VFO B window flashes ?N/A?. You may have different indications / results if the split command is sent via the CAT, and a mode other than CW or SSB is selected. > > Ben W4SC > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From valosin at midtel.net Mon Sep 7 19:09:53 2020 From: valosin at midtel.net (Tom & Barb Valosin) Date: Mon, 7 Sep 2020 19:09:53 -0400 Subject: [Elecraft] PR 6 Preamp for sale Message-ID: <181ce0a4-e6fa-2f3a-2de5-4fc84cc5a687@midtel.net> When I purchased my K3 from a gentleman upgrading to the K3A he included a PR 6 preamp. Rich would not transfer ownership until he knew "everything was up to date and to factory specs". (Like to deal with him - that is "his style"). He sent the rig and PR 6 back to the factory so I believe the preamp is "spot on" although I never used it due to my 6 mtr amp having its' own? preamp. Asking $60.00 plus $10.00 USA shipping. Contact me personally, valosin at midtel.net or by phone 518 827 4800 (h) or 518 231 1508 (c). Tom, WB2KLD From 99sunset at gmail.com Mon Sep 7 20:53:49 2020 From: 99sunset at gmail.com (Steve Hall) Date: Mon, 7 Sep 2020 20:53:49 -0400 Subject: [Elecraft] 40 meter SSB net 9/6/2020 Message-ID: Thanks to all for checking in. WM6P STEVE GA K3S KB9AVO PAUL IN K3S WB9JNZ ERIC IL K3 NC0JW JIM CO KX3 K8NU CARL OH K3S N8SBE DAVE MI K3S KD8DZ MIKE OH K3 AE6JV PHIL NH K3 N4CRZ DAVE FL K3 From n7tb at comcast.net Mon Sep 7 23:00:39 2020 From: n7tb at comcast.net (Terry Brown) Date: Mon, 7 Sep 2020 20:00:39 -0700 Subject: [Elecraft] Follow up KXPA100 low power problem Message-ID: <01BC4150-2671-42EC-81A7-33D0146FABC6@comcast.net> I first want to thank all those who responded to my post. In a follow up email it was suggested that I check for voltage drop in the Elecraft 12v fused power cord. Sure enough, at key down, voltage dropped from 14v to 10.5v. I connected a 10ga power cord directly from my PS to the amp. Voltage at key down was 13.72 volts and the amp put out full power. Time to troubleshoot the fused power cord! 73, Terry, N7TB From nr4c at widomaker.com Mon Sep 7 23:11:36 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 7 Sep 2020 23:11:36 -0400 Subject: [Elecraft] Follow up KXPA100 low power problem In-Reply-To: <01BC4150-2671-42EC-81A7-33D0146FABC6@comcast.net> References: <01BC4150-2671-42EC-81A7-33D0146FABC6@comcast.net> Message-ID: <448FF1EF-4EF3-488D-BC50-C059F271EB83@widomaker.com> I was not pleased with the original Elecraft supplied power cord either. I replaced it and never looked back. Sent from my iPhone ...nr4c. bill > On Sep 7, 2020, at 11:03 PM, Terry Brown wrote: > > ?I first want to thank all those who responded to my post. In a follow up email it was suggested that I check for voltage drop in the Elecraft 12v fused power cord. > > Sure enough, at key down, voltage dropped from 14v to 10.5v. I connected a 10ga power cord directly from my PS to the amp. Voltage at key down was 13.72 volts and the amp put out full power. > > Time to troubleshoot the fused power cord! > > 73, > > Terry, N7TB > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 wf3t at fastmail.com Tue Sep 8 07:54:32 2020 From: wf3t at fastmail.com (Steven G. Steltzer) Date: Tue, 08 Sep 2020 07:54:32 -0400 Subject: [Elecraft] Digest questions / new K4 list or group Message-ID: <01484538-ad56-45dd-8064-d76b819284ba@www.fastmail.com> Am I missing something in the settings? I get the digest emails. However they are usually very long because a lot of the posts contain the entire previous digest. Takes forever to scroll through to get to the ones I wan to read. I assume this is because senders hit "reply to all" and do not bother to cut the copy of everything out? Yet I see guys saying they can delete individual messages that don't interest them like you can do with a groups.io list. What am I missing? Thanks Steve, WF3T From ws6x.ars at gmail.com Tue Sep 8 08:09:40 2020 From: ws6x.ars at gmail.com (Jim Clymer) Date: Tue, 8 Sep 2020 08:09:40 -0400 Subject: [Elecraft] Digest questions / new K4 list or group In-Reply-To: <01484538-ad56-45dd-8064-d76b819284ba@www.fastmail.com> References: <01484538-ad56-45dd-8064-d76b819284ba@www.fastmail.com> Message-ID: The digest is a real pain for the very reason you mentioned... many subscribers, for whatever reason, don't remove all the non-pertinent stuff. I have seen one post that was 3 digests deep! To avoid that, you have 2 choices. Either change your delivery to individual emails, or unsubscribe and go to the site at your leisure. Jim - WS6X On Tue, Sep 8, 2020, 7:55 AM Steven G. Steltzer wrote: > Am I missing something in the settings? I get the digest emails. However > they are usually very long because a lot of the posts contain the entire > previous digest. Takes forever to scroll through to get to the ones I wan > to read. I assume this is because senders hit "reply to all" and do not > bother to cut the copy of everything out? Yet I see guys saying they can > delete individual messages that don't interest them like you can do with a > groups.io list. What am I missing? > > Thanks > Steve From w5jv at hotmail.com Tue Sep 8 10:58:53 2020 From: w5jv at hotmail.com (Doug Hensley) Date: Tue, 8 Sep 2020 14:58:53 +0000 Subject: [Elecraft] FS New Elecraft KPOD and new W2-200, both factory built. In-Reply-To: References: , Message-ID: FS: Two New Elecraft Accessories: one KPOD and and one W2-200 both factory built. These are factory items that are new & unused. Shipped as I received less paperwork. Manuals & firmware on the Elecraft site. Both for $585 plus postage or: W2 Wattmeter. - List $379.00. Sell $339. Includes the 2 - 200 Watt Inline Sensor. Both new, unused. (user supplies appropriate coaxial jumpers) https://elecraft.com/collections/test-equipment/products/w2 KPOD. - List $289.00. Sell $249. Unopened with factory cable set. https://elecraft.com/collections/k-pod-desktop-control-panel/products/k-pod-control-panel-for-the-k3s-k3 If purchasing, please advise address, zip & contact number. Payment by simple check or money order or add 4% for PAYPAL. This email is NOT my PAYPAL account ID. Will send that to purchaser. 73, Doug W5JV From pincon at erols.com Tue Sep 8 09:01:49 2020 From: pincon at erols.com (Charlie T) Date: Tue, 8 Sep 2020 09:01:49 -0400 Subject: [Elecraft] Digest questions / new K4 list or group In-Reply-To: References: <01484538-ad56-45dd-8064-d76b819284ba@www.fastmail.com> Message-ID: <003101d685e0$3b1f3dc0$b15db940$@erols.com> Well, what's worse than an email with pages of replies, is an email that simply says: "Thanks, that fixed my problem" with no hint of WHAT the problem was or, HOW it got fixed". I'm not sure how I have my email/forum input etc. set-up, but I like it just the way it is. All input shows up as a separate email. If it's a subject I don't care about I delete it. I would not want a separate K4 forum, since I have varying interests is ALL Elecraft products. I vote for leaving things exactly the way they are on this, to me anyway, very useful forum (if that's even the correct word for it). 73, Charlie k3iCH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Jim Clymer Sent: Tuesday, September 08, 2020 8:10 AM To: Steven G. Steltzer Cc: Elecraft at mailman.qth.net Subject: Re: [Elecraft] Digest questions / new K4 list or group The digest is a real pain for the very reason you mentioned... many subscribers, for whatever reason, don't remove all the non-pertinent stuff. I have seen one post that was 3 digests deep! To avoid that, you have 2 choices. Either change your delivery to individual emails, or unsubscribe and go to the site at your leisure. Jim - WS6X From donwilh at embarqmail.com Tue Sep 8 11:54:18 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 8 Sep 2020 11:54:18 -0400 Subject: [Elecraft] Digest questions / new K4 list or group In-Reply-To: <01484538-ad56-45dd-8064-d76b819284ba@www.fastmail.com> References: <01484538-ad56-45dd-8064-d76b819284ba@www.fastmail.com> Message-ID: <2f163ef2-d6d4-3948-b720-dce84c096d28@embarqmail.com> Steve, Most email clients include the ability to set filters. My Thunderbird filters everything with [Elecraft] in the subject line into my Elecraft sub-box under my Inbox. I can then reply to (or delete) any post I choose to. My account is set to send individual emails. In other words, I have my own "digest" of individual emails. I do the same for groups-io lists that I subscribe to. 73, Don W3FPR On 9/8/2020 7:54 AM, Steven G. Steltzer wrote: > Am I missing something in the settings? I get the digest emails. However they are usually very long because a lot of the posts contain the entire previous digest. Takes forever to scroll through to get to the ones I wan to read. I assume this is because senders hit "reply to all" and do not bother to cut the copy of everything out? Yet I see guys saying they can delete individual messages that don't interest them like you can do with a groups.io list. What am I missing? From ian.ls at hotmail.co.uk Tue Sep 8 13:11:56 2020 From: ian.ls at hotmail.co.uk (Ian Liston-Smith) Date: Tue, 8 Sep 2020 17:11:56 +0000 Subject: [Elecraft] KX3 odd behaviour Message-ID: While calibrating the KXFL3 filter I somehow got the KX3 into some weird mode where without touching it, the main display showed digits that that changed by themselves. Unfortunately I have no idea what combination of buttons caused this and I think I switched it off to just stop it. As far as I can tell the KX3 is behaving perfectly normally, but I'm curious to know what Tech Mode I might have got it in to and what to check to see what might have changed that shouldn't have changed. Thanks. 73, Ian, G4JQT From ghyoungman at gmail.com Tue Sep 8 13:20:45 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Tue, 8 Sep 2020 13:20:45 -0400 Subject: [Elecraft] KX3 odd behaviour In-Reply-To: References: Message-ID: <39DA5CF0-A3FE-4082-85E8-28D9ACC62142@gmail.com> There is an auto-mode for opposite sideband nulling to calibrate the KXFL3. I?d have to look at the manual to remember the specific keypresses for this, but it does show progress in the display (phase and gain) while running through the procedure. It is described in this document: https://ftp.elecraft.com/KX3/Mod%20Notes%20Alerts/RX%20sideband%20null%20A8.pdf. Could that be what you put the radio into without knowing it? Grant NQ5T > On Sep 8, 2020, at 1:11 PM, Ian Liston-Smith wrote: > > While calibrating the KXFL3 filter I somehow got the KX3 into some weird mode where without touching it, the main display showed digits that that changed by themselves. > > Unfortunately I have no idea what combination of buttons caused this and I think I switched it off to just stop it. > > As far as I can tell the KX3 is behaving perfectly normally, but I'm curious to know what Tech Mode I might have got it in to and what to check to see what might have changed that shouldn't have changed. > > Thanks. > > 73, > > Ian, G4JQT > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w5jv at hotmail.com Tue Sep 8 13:47:37 2020 From: w5jv at hotmail.com (Doug Hensley) Date: Tue, 8 Sep 2020 17:47:37 +0000 Subject: [Elecraft] New Elecraft KPOD is SOLD but my new W2-200 still on the block In-Reply-To: References: , , Message-ID: KPOD is SOLD but one new W2-200 still available. If you work various QRP levels, the W2 with the 2 to 200 W sampler is very helpful. Cheers, Doug W5JV Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds. ________________________________ From: Doug Hensley Sent: Tuesday, September 8, 2020 9:58 AM To: elecraft at mailman.qth.net Subject: FS New Elecraft KPOD and new W2-200, both factory built. FS: Two New Elecraft Accessories: one KPOD and and one W2-200 both factory built. These are factory items that are new & unused. Shipped as I received less paperwork. Manuals & firmware on the Elecraft site. Both for $585 plus postage or: W2 Wattmeter. - List $379.00. Sell $339. Includes the 2 - 200 Watt Inline Sensor. Both new, unused. (user supplies appropriate coaxial jumpers) https://elecraft.com/collections/test-equipment/products/w2 KPOD. - List $289.00. Sell $249. Unopened with factory cable set. https://elecraft.com/collections/k-pod-desktop-control-panel/products/k-pod-control-panel-for-the-k3s-k3 If purchasing, please advise address, zip & contact number. Payment by simple check or money order or add 4% for PAYPAL. This email is NOT my PAYPAL account ID. Will send that to purchaser. 73, Doug W5JV From ian.ls at hotmail.co.uk Tue Sep 8 15:23:04 2020 From: ian.ls at hotmail.co.uk (Ian Liston-Smith) Date: Tue, 8 Sep 2020 19:23:04 +0000 Subject: [Elecraft] KX3 odd behaviour In-Reply-To: <39DA5CF0-A3FE-4082-85E8-28D9ACC62142@gmail.com> References: , <39DA5CF0-A3FE-4082-85E8-28D9ACC62142@gmail.com> Message-ID: Thank you Grant. That document is very useful. Yes, I was probably inadvertently rummaging about in that area of settings. I hope I haven't inadvertently degraded sideband rejection, and as far as I can tell all seems fine. That document didn't come with the filter kit, which might have helped, although the procedure looks quite involved. Maybe Electraft have reasons for not encouraging fiddling with settings that are already correctly set up in the factory. 73, Ian, G4JQT ________________________________ From: Grant Youngman Sent: 08 September 2020 18:20 To: Ian Liston-Smith Cc: Elecraft Refl Subject: Re: [Elecraft] KX3 odd behaviour There is an auto-mode for opposite sideband nulling to calibrate the KXFL3. I?d have to look at the manual to remember the specific keypresses for this, but it does show progress in the display (phase and gain) while running through the procedure. It is described in this document: https://ftp.elecraft.com/KX3/Mod%20Notes%20Alerts/RX%20sideband%20null%20A8.pdf. Could that be what you put the radio into without knowing it? Grant NQ5T > On Sep 8, 2020, at 1:11 PM, Ian Liston-Smith wrote: > > While calibrating the KXFL3 filter I somehow got the KX3 into some weird mode where without touching it, the main display showed digits that that changed by themselves. > > Unfortunately I have no idea what combination of buttons caused this and I think I switched it off to just stop it. > > As far as I can tell the KX3 is behaving perfectly normally, but I'm curious to know what Tech Mode I might have got it in to and what to check to see what might have changed that shouldn't have changed. > > Thanks. > > 73, > > Ian, G4JQT > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 lashap at cox.net Tue Sep 8 15:50:37 2020 From: lashap at cox.net (Larry Shapiro) Date: Tue, 8 Sep 2020 12:50:37 -0700 Subject: [Elecraft] WTB: P3 In-Reply-To: References: Message-ID: Have you found one yet ? Larry K6ro Sent from my iPhone > On Sep 5, 2020, at 4:16 PM, Eric Norris wrote: > > ?Flexible on options, if any. Contact me offlist at this address. > > 73 Eric WD6DBM > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lashap at cox.net From gerry at w1ve.com Tue Sep 8 15:56:43 2020 From: gerry at w1ve.com (Gerry Hull) Date: Tue, 8 Sep 2020 15:56:43 -0400 Subject: [Elecraft] K3/0 (Original) odd behaviour Message-ID: Hi All, I have a K3/0 that I've had for quite a while. I remote with the K3/0 mini, but would love to have the K3/0 for SO2R. I can't seem to get the K3/0 communicating, though it worked fine in the past. Here's the weird symptoms: If I use the K3 Utility, I can communicate fine with it. It finds the K3/0 right away, and even updated the firmware. However, if I connect it to an RC, it does nothing at power up. If I connect a Terminal program to it, I see it issue a BREAK (Hex 00) at power up and nothing else. I presume it should send a PS1; to turn on the remote K3 Power? Any help or hints appreciated. 73, Gerry W1VE From norrislawfirm2 at gmail.com Tue Sep 8 15:58:50 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Tue, 8 Sep 2020 12:58:50 -0700 Subject: [Elecraft] WTB: P3 In-Reply-To: References: Message-ID: Yes, I did. Thanks. 73 Eric WD6DBM On Tue, Sep 8, 2020, 12:50 PM Larry Shapiro wrote: > Have you found one yet ? > Larry K6ro > > Sent from my iPhone > > > On Sep 5, 2020, at 4:16 PM, Eric Norris > wrote: > > > > ?Flexible on options, if any. Contact me offlist at this address. > > > > 73 Eric WD6DBM > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to lashap at cox.net > > From nr4c at widomaker.com Tue Sep 8 17:36:49 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 8 Sep 2020 17:36:49 -0400 Subject: [Elecraft] KX3 odd behaviour In-Reply-To: References: Message-ID: <37CB060D-B810-446D-B9B2-D822F660503A@widomaker.com> Did you have anything plugged into the mic jack. Sent from my iPhone ...nr4c. bill > On Sep 8, 2020, at 1:13 PM, Ian Liston-Smith wrote: > > ?While calibrating the KXFL3 filter I somehow got the KX3 into some weird mode where without touching it, the main display showed digits that that changed by themselves. > > Unfortunately I have no idea what combination of buttons caused this and I think I switched it off to just stop it. > > As far as I can tell the KX3 is behaving perfectly normally, but I'm curious to know what Tech Mode I might have got it in to and what to check to see what might have changed that shouldn't have changed. > > Thanks. > > 73, > > Ian, G4JQT > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w2ljqrp at gmail.com Tue Sep 8 20:14:06 2020 From: w2ljqrp at gmail.com (Larry Makoski) Date: Tue, 8 Sep 2020 20:14:06 -0400 Subject: [Elecraft] Skeeter Hunt 2020 Results Message-ID: To all Skeeters and Skeeter Hunters, You are ALL chmapions in my book! Thank you all for participating - without you, this event is a big ZERO. You folks make it what it is. And while you're tops, special kudos go to: Gene N5GW - 1st Place overall with 25,912 points Kent as N0SS - 2nd Place overall with 21,316 points Dave AB9CA - 3rd Place overall with 17. 806 points Peter NN9K - 4th Place overall with 16,381 points Marc W4MPS - 5th Place overall with 14.020 points The 2020 Skeeter Scoreboard is available for viewing in its entirety at: https://drive.google.com/file/d/18QkjuDoQik9OYXQeC19l4kUPCyAgYcQU/view?usp=sharing The soapbox will follow ASAP as well as certificates to those who earned them. Thanks again to all who particpated and and to those who sent in log summaries, comments and photos. 73 de Larry W2LJ - Skeeter Hunt Contest Manager - Skeeter # 13 in perpetuity. From ian.ls at hotmail.co.uk Wed Sep 9 03:06:24 2020 From: ian.ls at hotmail.co.uk (Ian Liston-Smith) Date: Wed, 9 Sep 2020 07:06:24 +0000 Subject: [Elecraft] KX3 odd behaviour In-Reply-To: <37CB060D-B810-446D-B9B2-D822F660503A@widomaker.com> References: , <37CB060D-B810-446D-B9B2-D822F660503A@widomaker.com> Message-ID: No, not got a mic yet. No key connected either. Thanks, Ian ________________________________ From: Nr4c Sent: 08 September 2020 22:36 To: Ian Liston-Smith Cc: Elecraft List Subject: Re: [Elecraft] KX3 odd behaviour Did you have anything plugged into the mic jack. Sent from my iPhone ...nr4c. bill > On Sep 8, 2020, at 1:13 PM, Ian Liston-Smith wrote: > > ?While calibrating the KXFL3 filter I somehow got the KX3 into some weird mode where without touching it, the main display showed digits that that changed by themselves. > > Unfortunately I have no idea what combination of buttons caused this and I think I switched it off to just stop it. > > As far as I can tell the KX3 is behaving perfectly normally, but I'm curious to know what Tech Mode I might have got it in to and what to check to see what might have changed that shouldn't have changed. > > Thanks. > > 73, > > Ian, G4JQT > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 dean.k2ww at gmail.com Wed Sep 9 05:57:12 2020 From: dean.k2ww at gmail.com (Dean L) Date: Wed, 9 Sep 2020 05:57:12 -0400 Subject: [Elecraft] Wanted to buy: P3SVGA for P3 Message-ID: If you have one surplus to your needs you'd consider selling, please email me direct. 73 Dean K2WW From pmeier at me.com Wed Sep 9 11:29:21 2020 From: pmeier at me.com (Pete Meier) Date: Wed, 9 Sep 2020 09:29:21 -0600 Subject: [Elecraft] K4 Remote Question Message-ID: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> The K4 has an eithernet port for remote operations. As I understand it the K4 doesn?t have WIFI . My internet router is not close to my shack so direct CAT 5/6 wiring is not practical. I know there are wired to wireless adapters available. 300 Mbps seems the typical speed to the router. So my question is 300 Mbps sufficient for the K4 to send it?s data to a remote device for full control? Pete WK8S From n6kr at elecraft.com Wed Sep 9 11:53:56 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Wed, 9 Sep 2020 08:53:56 -0700 Subject: [Elecraft] K4 Remote Question In-Reply-To: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> References: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> Message-ID: This is far beyond sufficient :) Wayne N6KR > On Sep 9, 2020, at 8:29 AM, Pete Meier via Elecraft wrote: > > The K4 has an eithernet port for remote operations. As I understand it the K4 doesn?t have WIFI . > My internet router is not close to my shack so direct CAT 5/6 wiring is not practical. > I know there are wired to wireless adapters available. 300 Mbps seems the typical speed to the router. > > So my question is 300 Mbps sufficient for the K4 to send it?s data to a remote device for full control? > > Pete WK8S > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 hgchapoton at gmail.com Wed Sep 9 13:04:44 2020 From: hgchapoton at gmail.com (hg chapoton) Date: Wed, 9 Sep 2020 13:04:44 -0400 Subject: [Elecraft] K3 - filters for trade Message-ID: I have several each of 1.8hHz (KFL3A-1.8K) and 500Hz (KFL3A-500). I would like to trade these for 250Hz (KFL3A-250) and 2.1kHz (KFLA-2.1K) filters. Any takers? Please reply off list greg/na8v From k6dgw at foothill.net Wed Sep 9 13:18:23 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Wed, 9 Sep 2020 10:18:23 -0700 Subject: [Elecraft] K4 Remote Question In-Reply-To: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> References: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> Message-ID: <28b90d67-499f-9e97-cf4a-92410b05f774@foothill.net> 300 Mbps is massive overkill.? My K3 and computer is on the other end of the house from the router and wiring is pretty much out of the question.? I use a little WiFi dongle from IO Gear on the RRC-1258, I've got a couple, I think they came from Amazon.? We use TeamViewer for all the station automation at W7RN, it consumes several times the BW of the remote radio but still tiny compared to 300 Mbps. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/9/2020 8:29 AM, Pete Meier via Elecraft wrote: > The K4 has an eithernet port for remote operations. As I understand it the K4 doesn?t have WIFI . > My internet router is not close to my shack so direct CAT 5/6 wiring is not practical. > I know there are wired to wireless adapters available. 300 Mbps seems the typical speed to the router. > > So my question is 300 Mbps sufficient for the K4 to send it?s data to a remote device for full control? > > Pete WK8S > From awinger2011 at icloud.com Wed Sep 9 13:19:59 2020 From: awinger2011 at icloud.com (Albert Winger) Date: Wed, 9 Sep 2020 11:19:59 -0600 Subject: [Elecraft] K3 #5765 for sale Message-ID: Hi Team I?m selling my Elecraft K3-100 KIt Transceiver (Serial #5765) for $1825.00, accept PayPal will ship to 48 contiguous states. For details please email me directly. 73 Al W1NGA Monument, CO From rick.nk7i at gmail.com Wed Sep 9 13:24:41 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Wed, 9 Sep 2020 10:24:41 -0700 Subject: [Elecraft] K4 Remote Question In-Reply-To: <28b90d67-499f-9e97-cf4a-92410b05f774@foothill.net> References: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> <28b90d67-499f-9e97-cf4a-92410b05f774@foothill.net> Message-ID: Just be judicious in the use of wifi extenders, they are half duplex and since they share the same channel of wifi, cause conflicts, which drags down the entire network. Some can be configured to hear on one band and transmit on another, which helps, a little. My answer was to replace the network with a mesh net, then connecting devices into the nodes directly as needed. That is MUCH more efficient and the LAN speed shot back up to where it should be. 73, Rick NK7I On 9/9/2020 10:18 AM, Fred Jensen wrote: > 300 Mbps is massive overkill.? My K3 and computer is on the other end > of the house from the router and wiring is pretty much out of the > question.? I use a little WiFi dongle from IO Gear on the RRC-1258, > I've got a couple, I think they came from Amazon.? We use TeamViewer > for all the station automation at W7RN, it consumes several times the > BW of the remote radio but still tiny compared to 300 Mbps. > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 9/9/2020 8:29 AM, Pete Meier via Elecraft wrote: >> The K4 has an eithernet port for remote operations. As I understand >> it the K4 doesn?t have WIFI . >> My internet router is not close to my shack so direct CAT 5/6 wiring >> is not practical. >> I know there are wired to wireless adapters available. 300 Mbps seems >> the typical speed to the router. >> >> So my question is 300 Mbps sufficient for the K4 to send it?s data to >> a remote device for full control? >> >> Pete WK8S >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w2kj at bellsouth.net Wed Sep 9 13:28:16 2020 From: w2kj at bellsouth.net (Joseph Trombino, Jr) Date: Wed, 9 Sep 2020 13:28:16 -0400 Subject: [Elecraft] K4 Ethernet connection References: Message-ID: Howdy Gang. Need someone with a bit of wireless experience to give me some assistance. Currently my Verizon home wireless phone router is not co-located in my shack. There is an Ethernet jack on the router that I?ve used to install new firmware in my Flex radios but I have to carry and power-up the Flex at the router location which is very inconvenient. If my K4 ever gets here (grin) I will need a wireless device that can receive WI-FI from my router and provide an Ethernet jack to hose up to the K4 in my shack. So, WI-FI to Ethernet device is needed. Does such an animal exist, if so, any recommended models to look for? Many thanks for any assistance. Stay safe and healthy. 73, Joe W2KJ I QRP, therefore I am From ghyoungman at gmail.com Wed Sep 9 13:33:24 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Wed, 9 Sep 2020 13:33:24 -0400 Subject: [Elecraft] K4 Ethernet connection In-Reply-To: References: Message-ID: <200E7C7A-5590-4844-BB31-7675ACA06D2C@gmail.com> Somewhere in the dim past (that would be anything over a few weeks ago), Elecraft has said they will provide some recommendations for suitable wired-to-wireless dongles. Grant NQ5T > On Sep 9, 2020, at 1:28 PM, Joseph Trombino, Jr wrote: > > Howdy Gang. > > Need someone with a bit of wireless experience to give me some assistance. > > Currently my Verizon home wireless phone router is not co-located in my shack. > > There is an Ethernet jack on the router that I?ve used to install new firmware in my Flex radios but I have to carry and power-up the Flex at the router location which is very inconvenient. > > If my K4 ever gets here (grin) I will need a wireless device that can receive WI-FI from my router and provide an Ethernet jack to hose up to the K4 in my shack. > > So, WI-FI to Ethernet device is needed. > > Does such an animal exist, if so, any recommended models to look for? > > Many thanks for any assistance. > > Stay safe and healthy. From rich at wc3t.us Wed Sep 9 13:37:44 2020 From: rich at wc3t.us (rich hurd WC3T) Date: Wed, 9 Sep 2020 13:37:44 -0400 Subject: [Elecraft] K4 Remote Question In-Reply-To: References: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> <28b90d67-499f-9e97-cf4a-92410b05f774@foothill.net> Message-ID: Just be careful with mesh networks. Some of them, apocryphally, don't play nice with modern hotspots. I do not know of my own experience because I don't have a mesh network but I've seen forums with messages to that effect. So if you're running your OpenSpot3 (to name the first recently-announced one I could think of) you might be in trouble switching to a mesh network. On Wed, Sep 9, 2020 at 1:24 PM Rick Bates, NK7I wrote: > Just be judicious in the use of wifi extenders, they are half duplex and > since they share the same channel of wifi, cause conflicts, which drags > down the entire network. Some can be configured to hear on one band and > transmit on another, which helps, a little. > > My answer was to replace the network with a mesh net, then connecting > devices into the nodes directly as needed. That is MUCH more efficient > and the LAN speed shot back up to where it should be. > > 73, > Rick NK7I > > > On 9/9/2020 10:18 AM, Fred Jensen wrote: > > 300 Mbps is massive overkill. My K3 and computer is on the other end > > of the house from the router and wiring is pretty much out of the > > question. I use a little WiFi dongle from IO Gear on the RRC-1258, > > I've got a couple, I think they came from Amazon. We use TeamViewer > > for all the station automation at W7RN, it consumes several times the > > BW of the remote radio but still tiny compared to 300 Mbps. > > > > 73, > > > > Fred ["Skip"] K6DGW > > Sparks NV DM09dn > > Washoe County > > > > On 9/9/2020 8:29 AM, Pete Meier via Elecraft wrote: > >> The K4 has an eithernet port for remote operations. As I understand > >> it the K4 doesn?t have WIFI . > >> My internet router is not close to my shack so direct CAT 5/6 wiring > >> is not practical. > >> I know there are wired to wireless adapters available. 300 Mbps seems > >> the typical speed to the router. > >> > >> So my question is 300 Mbps sufficient for the K4 to send it?s data to > >> a remote device for full control? > >> > >> Pete WK8S > >> > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 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 raysills3 at verizon.net Wed Sep 9 13:39:11 2020 From: raysills3 at verizon.net (Raymond Sills) Date: Wed, 9 Sep 2020 17:39:11 +0000 (UTC) Subject: [Elecraft] K4 Remote Question In-Reply-To: References: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> <28b90d67-499f-9e97-cf4a-92410b05f774@foothill.net> Message-ID: <1217514712.2112421.1599673151514@mail.yahoo.com> Hi Rick: And... perhaps another answer for Wi-Fi "extension" is to use a better antenna. ?Some routers permit you to add an outboard antenna, which could be a gain antenna, so you would then have a better connection for your LAN. ?Or, you might situate the routers so they have a better path. ?All that is in the traditions of ham radio! 73 de Ray ? ?K2ULR ? ?KX3 #211 ? ? -----Original Message----- From: Rick Bates, NK7I To: elecraft at mailman.qth.net Sent: Wed, Sep 9, 2020 1:24 pm Subject: Re: [Elecraft] K4 Remote Question Just be judicious in the use of wifi extenders, they are half duplex and since they share the same channel of wifi, cause conflicts, which drags down the entire network. Some can be configured to hear on one band and transmit on another, which helps, a little. My answer was to replace the network with a mesh net, then connecting devices into the nodes directly as needed. That is MUCH more efficient and the LAN speed shot back up to where it should be. 73, Rick NK7I From thomas at horsten.com Wed Sep 9 13:42:33 2020 From: thomas at horsten.com (Thomas Horsten) Date: Wed, 9 Sep 2020 19:42:33 +0200 Subject: [Elecraft] K4 Remote Question In-Reply-To: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> References: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> Message-ID: I'd always say use wired ethernet (with shielded cable) in or near the shack, a WiFi router or access point there is fine for things like your phone and tablets, but for radios, logging/controlling PC's etc. it's way too unreliable when you start operating. It's so annoying when your WiFi router crashes and reboots in the middle of a contest or even just disconnects intermittently whenever you transmit on a certain band, etc. If you must use wireless, I'd recommend having a WiFi bridge or access point as far away from your transmitting equipment, coax etc. as possible and use cables from there to the rest of the shack. 73, Thomas OZ5TN (aka M0TRN, AF7BE) On Wed, 9 Sep 2020, 17:31 Pete Meier via Elecraft, wrote: > The K4 has an eithernet port for remote operations. As I understand it the > K4 doesn?t have WIFI . > My internet router is not close to my shack so direct CAT 5/6 wiring is > not practical. > I know there are wired to wireless adapters available. 300 Mbps seems the > typical speed to the router. > > So my question is 300 Mbps sufficient for the K4 to send it?s data to a > remote device for full control? > > Pete WK8S > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to thomas at horsten.com From rick.nk7i at gmail.com Wed Sep 9 14:08:45 2020 From: rick.nk7i at gmail.com (Rick Bates, NK7I) Date: Wed, 9 Sep 2020 11:08:45 -0700 Subject: [Elecraft] K4 Remote Question In-Reply-To: <1217514712.2112421.1599673151514@mail.yahoo.com> References: <00322FA9-5CE4-4D25-A8F8-925DC1E3DE45@me.com> <28b90d67-499f-9e97-cf4a-92410b05f774@foothill.net> <1217514712.2112421.1599673151514@mail.yahoo.com> Message-ID: <5b7676be-bdde-5d87-6a94-cec5cd66abe4@gmail.com> I've tried that (with 10 dB sticks on my wifi cameras) and it didn't really help.? That router already had high gain antennas (not the mesh style, they're apparently only available with internal antennas, sadly). To 'translate' from a wired only device into wifi, an extender (with it's own router) can help, but as I've said is not the cure.? A pure wire to wifi dongle may (then the device is just another network user for the router to figure out). My OpenSpot (original) is one of the devices wired to a node, the IRLP computer is another (each node has two ports, one of which can be connected to a switch too if you need more ports).? That way the mesh just handles the data without extender conflicts. What shocks me the most is the sheer volume of 'toys' connected at any given moment, often upwards of 30 and I live alone!? Cameras, printers, computers, bluray, weather station, smart tv... it adds up very quickly. 73, Rick NK7I On 9/9/2020 10:39 AM, Raymond Sills via Elecraft wrote: > Hi Rick: > And... perhaps another answer for Wi-Fi "extension" is to use a better antenna. ?Some routers permit you to add an outboard antenna, which could be a gain antenna, so you would then have a better connection for your LAN. ?Or, you might situate the routers so they have a better path. ?All that is in the traditions of ham radio! > 73 de Ray ? ?K2ULR ? ?KX3 #211 > > > > -----Original Message----- > From: Rick Bates, NK7I > To: elecraft at mailman.qth.net > Sent: Wed, Sep 9, 2020 1:24 pm > Subject: Re: [Elecraft] K4 Remote Question > > Just be judicious in the use of wifi extenders, they are half duplex and > since they share the same channel of wifi, cause conflicts, which drags > down the entire network. Some can be configured to hear on one band and > transmit on another, which helps, a little. > > My answer was to replace the network with a mesh net, then connecting > devices into the nodes directly as needed. That is MUCH more efficient > and the LAN speed shot back up to where it should be. > > 73, > Rick NK7I > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w6jhb at me.com Wed Sep 9 14:11:16 2020 From: w6jhb at me.com (James Bennett) Date: Wed, 9 Sep 2020 11:11:16 -0700 Subject: [Elecraft] K4 Ethernet connection In-Reply-To: References: Message-ID: <41474202-2F95-4CB0-9EDF-A9150F1DA38F@me.com> There sure is. I just happened to use one yesterday while testing out a Raspberry Pi4. Mine is made by IOGEAR, model GWU627. I?ve had it for a few years, so there might be a newer model out there. Didn?t cost a lot, either - Amazon is your friend. Connects to your wireless network and has a port in the back to run an Ethernet cable to your K4. Works really well. 73, Jim / W6JHB > On Sep 9, 2020, at 10:28 AM, Joseph Trombino, Jr wrote: > > Howdy Gang. > > Need someone with a bit of wireless experience to give me some assistance. > > Currently my Verizon home wireless phone router is not co-located in my shack. > > There is an Ethernet jack on the router that I?ve used to install new firmware in my Flex radios but I have to carry and power-up the Flex at the router location which is very inconvenient. > > If my K4 ever gets here (grin) I will need a wireless device that can receive WI-FI from my router and provide an Ethernet jack to hose up to the K4 in my shack. > > So, WI-FI to Ethernet device is needed. > > Does such an animal exist, if so, any recommended models to look for? > > Many thanks for any assistance. > > Stay safe and healthy. > > 73, Joe W2KJ > I QRP, therefore I am > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w6jhb at me.com From thomas at horsten.com Wed Sep 9 14:34:46 2020 From: thomas at horsten.com (Thomas Horsten) Date: Wed, 9 Sep 2020 20:34:46 +0200 Subject: [Elecraft] K4 Ethernet connection In-Reply-To: References: Message-ID: An access point will do the job, it can be set up as a simple bridge between WiFi and wired ethernet, and you can place it as far away from your transmitting equipment in the shack as possible and run a cable to a wired switch that provides access for your cabled equipment. It's very worthwhile to use shielded cat5e/cat6 cabling and grounding all switches etc. when in an RF rich environment such as your shack. 73 Thomas OZ5TN (aka M0TRN, AF7BE) On Wed, 9 Sep 2020, 19:29 Joseph Trombino, Jr, wrote: > Howdy Gang. > > Need someone with a bit of wireless experience to give me some assistance. > > Currently my Verizon home wireless phone router is not co-located in my > shack. > > There is an Ethernet jack on the router that I?ve used to install new > firmware in my Flex radios but I have to carry and power-up the Flex at the > router location which is very inconvenient. > > If my K4 ever gets here (grin) I will need a wireless device that can > receive WI-FI from my router and provide an Ethernet jack to hose up to the > K4 in my shack. > > So, WI-FI to Ethernet device is needed. > > Does such an animal exist, if so, any recommended models to look for? > > Many thanks for any assistance. > > Stay safe and healthy. > > 73, Joe W2KJ > I QRP, therefore I am > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to thomas at horsten.com From infomet at embarqmail.com Wed Sep 9 13:24:02 2020 From: infomet at embarqmail.com (Wilson Lamb) Date: Wed, 9 Sep 2020 13:24:02 -0400 (EDT) Subject: [Elecraft] Filter Question Message-ID: <408531890.17521038.1599672242704.JavaMail.zimbra@embarqmail.com> Would someone please explain the relationship between our plug in filters (K3) and the variable filter response provided by our width control. As I understand the situation, the plug in filters we buy are roofing filters, used to prevent intermod from strong signals outside the pass band. Is there more to it? If there were no other signals, would the width control work the same with and without the plug in filters? From frantz at pwpconsult.com Wed Sep 9 15:04:24 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Wed, 9 Sep 2020 15:04:24 -0400 Subject: [Elecraft] Filter Question In-Reply-To: <408531890.17521038.1599672242704.JavaMail.zimbra@embarqmail.com> Message-ID: You understand it well. The plug in filters work before the AtoD converter and protect it from desense due to strong nearby signals. Desense occurs when the ALC reduces receive sensitivity because of this strong signal. This level of suppression can be useful with other hams operating nearby, like a neighbor or a multi-radio operation like field day with both CW and digital stations. The width control works with the DSP filter to provide finer control of the bandwidth. By narrowing the passband, you can reduce the total band noise coming through the receiver and improve the signal to noise ratio for the desired signal. You can also use it to suppress a strong, slightly off frequency, signal. Without other signals, the width control will work the same with or without the plug in filters. The ifs/ands/and buts are that if both filters are set to about the same width, the skirts will be a bit sharper. (DSP filters tend to have very sharp skirts.) 73 Bill AE6JV On 9/9/20 at 1:24 PM, infomet at embarqmail.com (Wilson Lamb) wrote: >Would someone please explain the relationship between our plug >in filters (K3) and the variable filter response provided by >our width control. >As I understand the situation, the plug in filters we buy are >roofing filters, used to prevent intermod from strong signals >outside the pass band. >Is there more to it? >If there were no other signals, would the width control work >the same with and without the plug in filters? ----------------------------------------------------------------------- Bill Frantz | Truth and love must prevail | Periwinkle (408)348-7900 | over lies and hate. | 150 Rivermead Rd #235 www.pwpconsult.com | - Vaclav Havel | Peterborough, NH 03458 From gordon.lapoint at gmail.com Wed Sep 9 15:13:28 2020 From: gordon.lapoint at gmail.com (Gordon LaPoint) Date: Wed, 9 Sep 2020 15:13:28 -0400 Subject: [Elecraft] KAT500 remote software Message-ID: <443bdcd2-e489-28d2-93a5-f930592c7d39@gmail.com> I'm running a remote station using a KAT500 and KPA500 setup.? I start the kat500-Remote.exe program on system boot, with a batch file using the commands: rem Run the KAT500 remote control server, with parameters cd C:\Program Files (x86)\Elecraft\KAT500 Remote\ start /MIN KAT500-Remote.exe COM7 38400 4627 500 It works, but when the program starts it puts the KAT500 mode to Auto.? I want it to remain in MANUAL, is there a command line switch that will do that? Thanks! Gordon - N1MGO From jim at audiosystemsgroup.com Wed Sep 9 16:30:20 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Wed, 9 Sep 2020 13:30:20 -0700 Subject: [Elecraft] Filter Question In-Reply-To: <408531890.17521038.1599672242704.JavaMail.zimbra@embarqmail.com> References: <408531890.17521038.1599672242704.JavaMail.zimbra@embarqmail.com> Message-ID: <34292999-2a34-b209-8022-6c41184935b1@audiosystemsgroup.com> Hi Wilson, The response of the DSP IF filters combines (cascades) with the roofing filters; when both are the same bandwidth, their skirts fall off much more sharply (the rolloff is equal to the sum of the two filters). When one is much broader than the other, we get only the skirts of the narrowest one. This is generally true of all filters, whether digital or analog, except to the extent that the combined phase shift modifies the total response. 73, Jim K9YC On 9/9/2020 10:24 AM, Wilson Lamb wrote: > Would someone please explain the relationship between our plug in filters (K3) and the variable filter response provided by our width control. > As I understand the situation, the plug in filters we buy are roofing filters, used to prevent intermod from strong signals outside the pass band. > Is there more to it? From jim at n7us.net Wed Sep 9 21:06:46 2020 From: jim at n7us.net (Jim N7US) Date: Wed, 9 Sep 2020 20:06:46 -0500 Subject: [Elecraft] [K3S] Audio from computer speakers with RSP1A connected to P3 IF Out Message-ID: <007101d6870e$a8560570$f9021050$@n7us.net> I recently bought a SDRplay RSP1A SDR and have it connected to the IF Out on my P3, and I'm using it with Win4K3Suite for a spectrum display. When the radio is tuned to a quiet frequency on CW, I hear weak CW through my computer speakers, but it stops if I unplug the RSP1A from the P3's IF Out jack. (I assume the same would happen on other modes.) The volume is faint, and I can adjust it speakers' volume control or the computer's speaker volume (in Windows) on my keyboard. I can tune the signal in by changing the VFO frequency on the K3S, but I hear the signal a couple kHz above zero beat, so it's very broad. Does this make any sense? Thanks for any insight. Jim N7US From petr at ok2cqr.com Thu Sep 10 01:39:36 2020 From: petr at ok2cqr.com (Petr Hlozek) Date: Thu, 10 Sep 2020 07:39:36 +0200 Subject: [Elecraft] KX3 CW keying problem Message-ID: Hi, I've been using KX3 for some time now and still have some problems with CW keying. I'm using squeeze keying Curtis A. In the KX3 menu, there is selected A squeeze mode but during the QSO, it seems that the B is still enabled. The internal keyer very often adds dash, sometimes dot. It's horrible, because of that, I have to use an external keyer (TinyKeyer by Martin, OK1RR). It seems the problem is not with the paddle, I tried to use two paddles - Mercury N2DAN paddle from Bencher and Electraft Hexkey paddle. Still the same result. It's really annoying because when I operate from portable, I have to take care also about external keyer. What could be the problem? KX3 SN is 7742 with latest firmware installed. I love CW (HSC, CWOPS, FOC) and this keying issue is the only thing I don't like on my KX3. Thanks for your help 73 Petr, OK2CQR -- https://hamqth.com/ok2cqr https://www.ok2cqr.com https://www.cqrlog.com/ https://petrhlozek.cz/ From ptaa at ieee.org Thu Sep 10 04:12:45 2020 From: ptaa at ieee.org (Per-Tore Aasestrand) Date: Thu, 10 Sep 2020 10:12:45 +0200 Subject: [Elecraft] Elecraft K3 Problem In-Reply-To: References: Message-ID: Hello group, The K3 problem was quickly solved by Leo Duursma, PA0LMD. An RF choke (RFC30) was open. Thus, the diodes D25 did not get the required switching voltage. Thanks to all that helped with evaluating the problem. 73, Per-Tore DL/LA7NO From yo3gjc at yahoo.com Thu Sep 10 06:51:43 2020 From: yo3gjc at yahoo.com (VE3GNO Daniel) Date: Thu, 10 Sep 2020 10:51:43 +0000 (UTC) Subject: [Elecraft] K4 Ethernet connection In-Reply-To: References: Message-ID: <1296216299.614664.1599735103222@mail.yahoo.com> Hi Joe Or you need a wireless extender with ethernet port(s). I am using EAX80 from Netgear but there are cheaper alternatives 73 de ve3gno Daniel Sent from Yahoo Mail on Android On Wed, Sep 9, 2020 at 14:36, Thomas Horsten wrote: An access point will do the job, it can be set up as a simple bridge between WiFi and wired ethernet, and you can place it as far away from your transmitting equipment in the shack as possible and run a cable to a wired switch that provides access for your cabled equipment. It's very worthwhile to use shielded cat5e/cat6 cabling and grounding all switches etc. when in an RF rich environment such as your shack. 73 Thomas OZ5TN (aka M0TRN, AF7BE) On Wed, 9 Sep 2020, 19:29 Joseph Trombino, Jr, wrote: > Howdy Gang. > > Need someone with a bit of wireless experience to give me some assistance. > > Currently my Verizon home wireless phone router is not co-located in my > shack. > > There is an Ethernet jack on the router that I?ve used to install new > firmware in my Flex radios but I have to carry and power-up the Flex at the > router location which is very inconvenient. > > If my K4 ever gets here (grin) I will need a wireless device that can > receive WI-FI from my router and provide an Ethernet jack to hose up to the > K4 in my shack. > > So, WI-FI to Ethernet device is needed. > > Does such an animal exist, if so, any recommended models to look for? > > Many thanks for any assistance. > > Stay safe and healthy. > >? ? ? ? ? ? ? ? ? ? ? ? 73, Joe W2KJ >? ? ? ? ? ? ? ? ? ? ? ? I QRP, therefore I am > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to thomas at horsten.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to yo3gjc at yahoo.com From gordon.lapoint at gmail.com Thu Sep 10 08:20:45 2020 From: gordon.lapoint at gmail.com (Gordon LaPoint) Date: Thu, 10 Sep 2020 08:20:45 -0400 Subject: [Elecraft] K4 Ethernet connection In-Reply-To: References: Message-ID: <70aca326-0571-657a-256f-b611c7892f16@gmail.com> Will a USB WiFi dongle in one of the usb ports work??? Is the underling OS able to use one??? Most(all) modern linux dists will use one, but do we have the access to configure one? Gordon - N1MGO From aa4vt.dave at gmail.com Thu Sep 10 12:54:33 2020 From: aa4vt.dave at gmail.com (David Needham) Date: Thu, 10 Sep 2020 12:54:33 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m Message-ID: Bill, It looks like you have uncovered the same apparent firmware glitch I did. I have verified a few friends have the same issue. It is very repeatable on K3 and K3S's. I was using split mode for WSJT-X and when I would press Tune while in Data Mode A to tune my KPA-1500, I get zero power output. If I take the rig out of Split mode, it works just fine. Put it back Split mode, still works fine. Turn the rig off and on again, zero power out again. My solution was also to run WSJT-X in Fake It mode, but I really would prefer to be able to use Split mode. Maybe one day one of the firmware updates will correct that. -- Thank you! David Needham, AA4VT (formerly K4AJA and K8AJA) From nr4c at widomaker.com Thu Sep 10 13:15:28 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 10 Sep 2020 13:15:28 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m In-Reply-To: References: Message-ID: Tune before you run wsjt. The ATU I think forces the VFO into CW mode. Split in a DATA Mode is not allowed if one VFO is not in same DATA Mode. Sent from my iPhone ...nr4c. bill > On Sep 10, 2020, at 12:57 PM, David Needham wrote: > > ?Bill, > > It looks like you have uncovered the same apparent firmware glitch I did. I > have verified a few friends have the same issue. It is very repeatable on > K3 and K3S's. > > I was using split mode for WSJT-X and when I would press Tune while in Data > Mode A to tune my KPA-1500, I get zero power output. If I take the rig out > of Split mode, it works just fine. Put it back Split mode, still works > fine. Turn the rig off and on again, zero power out again. > > My solution was also to run WSJT-X in Fake It mode, but I really would > prefer to be able to use Split mode. Maybe one day one of the firmware > updates will correct that. > > -- > Thank you! > David Needham, AA4VT (formerly K4AJA and K8AJA) > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 aa4vt.dave at gmail.com Thu Sep 10 13:22:52 2020 From: aa4vt.dave at gmail.com (David Needham) Date: Thu, 10 Sep 2020 13:22:52 -0400 Subject: [Elecraft] [K3] KAT3 not functioning on 6m Message-ID: Tune before you run wsjt. The ATU I think forces the VFO into CW mode. Split in a DATA Mode is not allowed if one VFO is not in same DATA Mode. Sent from my iPhone ...nr4c. bill ----------------------- It makes me think it is a firmware glitch because this only happens on 6 meters. If I create the exact same circumstances on 160m through 10m, it doesn't happen. WSJT-X Split mode and Tune work fine everywhere except 6m. -- Thank you! David Needham, AA4VT (formerly K4AJA and K8AJA) From k7voradio at gmail.com Thu Sep 10 13:57:13 2020 From: k7voradio at gmail.com (Robert Sands) Date: Thu, 10 Sep 2020 10:57:13 -0700 Subject: [Elecraft] K4 Predistortion planned? timetable? Message-ID: Is the processor in the K4 fast or big enough to handle the demand of the anticipated predistortion algorithm? Is this predistortion algorithm a proprietary matter or is it constructed de novo from existing knowledge? Any information on what is planned would be appreciated. Have not seen much other than "later". Big attraction to me. Robert K7VO From gordon.lapoint at gmail.com Thu Sep 10 14:52:42 2020 From: gordon.lapoint at gmail.com (Gordon LaPoint) Date: Thu, 10 Sep 2020 14:52:42 -0400 Subject: [Elecraft] KAT500 Remote software help Message-ID: <9546975e-55c2-4700-74a7-55017bf90236@gmail.com> I'm using the KAT500 with the remote software.? Is there any documentation of the command line switches for this software? I have it set to start on bootup, connecting to a specific port at the correct baud rate, it works, but switches the tuner from manual mode to auto mode. How do I prevent this? Gordon - N1MGO From alorona at sbcglobal.net Thu Sep 10 15:51:42 2020 From: alorona at sbcglobal.net (Al Lorona) Date: Thu, 10 Sep 2020 19:51:42 +0000 (UTC) Subject: [Elecraft] [OT] A Very Quiet Day References: <603103853.876103.1599767502369.ref@mail.yahoo.com> Message-ID: <603103853.876103.1599767502369@mail.yahoo.com> Power was shut off to my noisy urban neighborhood yesterday while crews replaced a power pole. For a long time, I have wanted to check my HF noise floor when the power is out, and yesterday was my chance.? For days like this is why my station is solar-powered! I expected to be surprised but I was absolutely blown away by what I heard. The 40 meter noise floor was at least *17 dB* lower than normal. I could hear layers and layers of signals that I never knew were there. Nets I never knew existed? I mean, have you heard of the Montana Sheepherders net, for pity?s sake? A midday 40 m pileup on a SOTA QRP CW station in Texas that I never would have had a prayer of hearing normally. The noise was so low that I could hear way, way down into the intermod of SSB signals?and most of them were quite yucky. I heard birdies and crud from washing machines from what must have been three blocks away. I heard the 7150 kHz 5th harmonic of a local AM station. By measurement on the P3, I confirmed that all of these signals would have been completely under my usual noise floor. On 20, it was so quiet I almost believed that the K3?s receiver had failed. WWV was coming in at a 56 dB signal-to-noise ratio. Interestingly, 80 meters was also quieter, but not by as much. I?m not complaining about nearly 10 dB less noise, but it?s too bad that power was turned on before dark, before I could really evaluate the conditions. When it gets this quiet, there are no ticks, crashes or noise transients of any kind... just a gentle rushing sound, so it ?feels? even quieter than it is. It was every bit as quiet as a forest Field Day a hundred miles from civilization. Yes, radio was amazing yesterday for six glorious hours. R, Al? W6LX From Lyn at LNAINC.com Thu Sep 10 16:24:47 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Thu, 10 Sep 2020 15:24:47 -0500 Subject: [Elecraft] KAT500 Remote software help In-Reply-To: <9546975e-55c2-4700-74a7-55017bf90236@gmail.com> References: <9546975e-55c2-4700-74a7-55017bf90236@gmail.com> Message-ID: <10c601d687b0$6e09faf0$4a1df0d0$@LNAINC.com> Hi Gordon - Yes, you can find the command reference here: https://elecraft.com/pages/kat500-fully-automatic-tuner-manuals As to the KAT500 switching modes, I am not having that problem. I suggest you go thru the Configuration making certain to memorize critical frequencies then run it in Manual mode. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint Sent: Thursday, September 10, 2020 1:53 PM To: Elecraft Discussion List Subject: [Elecraft] KAT500 Remote software help I'm using the KAT500 with the remote software. Is there any documentation of the command line switches for this software? I have it set to start on bootup, connecting to a specific port at the correct baud rate, it works, but switches the tuner from manual mode to auto mode. How do I prevent this? Gordon - N1MGO ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lyn at lnainc.com From gordon.lapoint at gmail.com Thu Sep 10 16:31:22 2020 From: gordon.lapoint at gmail.com (Gordon LaPoint) Date: Thu, 10 Sep 2020 16:31:22 -0400 Subject: [Elecraft] KAT500 Remote software help In-Reply-To: <10c601d687b0$6e09faf0$4a1df0d0$@LNAINC.com> References: <9546975e-55c2-4700-74a7-55017bf90236@gmail.com> <10c601d687b0$6e09faf0$4a1df0d0$@LNAINC.com> Message-ID: Lyn, ??? I have those docs, thanks.? I'm looking for the command line switches for the remote host software.? I have the serial port/serial speed, tcp port and time out.? I would like to know if there is any way to control the mode when the software starts, I know how to change it after its running, but I don't want to have to switch from "auto" back to "man" everytime the remote cpu boots. Thanks, Gordon - N1MGO On 9/10/2020 16:24 PM, Lyn Norstad wrote: > Hi Gordon - > > Yes, you can find the command reference here: > > https://elecraft.com/pages/kat500-fully-automatic-tuner-manuals > > As to the KAT500 switching modes, I am not having that problem. I suggest you go thru the Configuration making certain to memorize critical frequencies then run it in Manual mode. > > 73 > Lyn, W0LEN > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Gordon LaPoint > Sent: Thursday, September 10, 2020 1:53 PM > To: Elecraft Discussion List > Subject: [Elecraft] KAT500 Remote software help > > I'm using the KAT500 with the remote software. Is there any > documentation of the command line switches for this software? > > I have it set to start on bootup, connecting to a specific port at the > correct baud rate, it works, but switches the tuner from manual mode to > auto mode. > > How do I prevent this? > > Gordon - N1MGO > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to lyn at lnainc.com > From n6kr at elecraft.com Thu Sep 10 16:38:21 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 10 Sep 2020 13:38:21 -0700 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: <603103853.876103.1599767502369@mail.yahoo.com> References: <603103853.876103.1599767502369@mail.yahoo.com> Message-ID: <223A28A9-7469-4E29-A5CA-3E14B0807865@elecraft.com> Hi Al, Thanks for entertaining observations. I have a proximately the same experience every time I take the KX2 or KX3 miles away from humanity. Wayne N6KR ---- elecraft.com > On Sep 10, 2020, at 12:53 PM, Al Lorona wrote: > > ?Power was shut off to my noisy urban neighborhood yesterday while crews replaced a power pole. For a long time, I have wanted to check my HF noise floor when the power is out, and yesterday was my chance. For days like this is why my station is solar-powered! > > I expected to be surprised but I was absolutely blown away by what I heard. The 40 meter noise floor was at least *17 dB* lower than normal. I could hear layers and layers of signals that I never knew were there. Nets I never knew existed? I mean, have you heard of the Montana Sheepherders net, for pity?s sake? A midday 40 m pileup on a SOTA QRP CW station in Texas that I never would have had a prayer of hearing normally. The noise was so low that I could hear way, way down into the intermod of SSB signals?and most of them were quite yucky. I heard birdies and crud from washing machines from what must have been three blocks away. I heard the 7150 kHz 5th harmonic of a local AM station. By measurement on the P3, I confirmed that all of these signals would have been completely under my usual noise floor. > > On 20, it was so quiet I almost believed that the K3?s receiver had failed. WWV was coming in at a 56 dB signal-to-noise ratio. > > Interestingly, 80 meters was also quieter, but not by as much. I?m not complaining about nearly 10 dB less noise, but it?s too bad that power was turned on before dark, before I could really evaluate the conditions. > > When it gets this quiet, there are no ticks, crashes or noise transients of any kind... just a gentle rushing sound, so it ?feels? even quieter than it is. It was every bit as quiet as a forest Field Day a hundred miles from civilization. Yes, radio was amazing yesterday for six glorious hours. > > R, > > 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 n6kr at elecraft.com From dave at nk7z.net Thu Sep 10 16:56:33 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 10 Sep 2020 13:56:33 -0700 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: <223A28A9-7469-4E29-A5CA-3E14B0807865@elecraft.com> References: <603103853.876103.1599767502369@mail.yahoo.com> <223A28A9-7469-4E29-A5CA-3E14B0807865@elecraft.com> Message-ID: <50481e18-a988-0dd5-8073-5169e8cd1dee@nk7z.net> I have a 22 db noise floor change here when power fails... If the pot grower has his lights on the noise floor drops almost 40 db during a power fail. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 9/10/20 1:38 PM, Wayne Burdick wrote: > Hi Al, > > Thanks for entertaining observations. > > I have a proximately the same experience every time I take the KX2 or KX3 miles away from humanity. > > Wayne > N6KR > > ---- > elecraft.com > >> On Sep 10, 2020, at 12:53 PM, Al Lorona wrote: >> >> ?Power was shut off to my noisy urban neighborhood yesterday while crews replaced a power pole. For a long time, I have wanted to check my HF noise floor when the power is out, and yesterday was my chance. For days like this is why my station is solar-powered! >> >> I expected to be surprised but I was absolutely blown away by what I heard. The 40 meter noise floor was at least *17 dB* lower than normal. I could hear layers and layers of signals that I never knew were there. Nets I never knew existed? I mean, have you heard of the Montana Sheepherders net, for pity?s sake? A midday 40 m pileup on a SOTA QRP CW station in Texas that I never would have had a prayer of hearing normally. The noise was so low that I could hear way, way down into the intermod of SSB signals?and most of them were quite yucky. I heard birdies and crud from washing machines from what must have been three blocks away. I heard the 7150 kHz 5th harmonic of a local AM station. By measurement on the P3, I confirmed that all of these signals would have been completely under my usual noise floor. >> >> On 20, it was so quiet I almost believed that the K3?s receiver had failed. WWV was coming in at a 56 dB signal-to-noise ratio. >> >> Interestingly, 80 meters was also quieter, but not by as much. I?m not complaining about nearly 10 dB less noise, but it?s too bad that power was turned on before dark, before I could really evaluate the conditions. >> >> When it gets this quiet, there are no ticks, crashes or noise transients of any kind... just a gentle rushing sound, so it ?feels? even quieter than it is. It was every bit as quiet as a forest Field Day a hundred miles from civilization. Yes, radio was amazing yesterday for six glorious hours. >> >> R, >> >> 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 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 dennisashworth49 at gmail.com Thu Sep 10 16:58:55 2020 From: dennisashworth49 at gmail.com (Dennis Ashworth) Date: Thu, 10 Sep 2020 13:58:55 -0700 Subject: [Elecraft] K4 Remote internet bandwidth requirements Message-ID: <85C30541-D2E7-4C8E-B118-ADDE16C74F2F@gmail.com> There was a recent thread regarding the internet bandwidth required to support full K4 remote operating requirements. I have operated my K3/K3/0 combo from all corners of the world with mostly good results, but those results are highly dependent on speed, bandwidth and latency. Comparing to my existing K3 station, it would seem the K4 may require more bandwidth given the pan adapter and other data transmitted over the Internet. Is this a reasonable assumption? If so, my question to Elecraft (submitted last year, but never answered) is whether data intensive features could be rolled back or shed in low bandwidth environments. For example, can I turn off the pan adapter functionality if it?s use makes the remote connection unusable. I?d rather have the core radio functions work reliably ... and play radio ... than be QRT because the Internet cannot support full radio functionality. Seems the ability to shed loads would be beneficial. Dennis, K7FL From esteptony at gmail.com Thu Sep 10 17:17:28 2020 From: esteptony at gmail.com (Tony Estep) Date: Thu, 10 Sep 2020 16:17:28 -0500 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: <603103853.876103.1599767502369@mail.yahoo.com> References: <603103853.876103.1599767502369.ref@mail.yahoo.com> <603103853.876103.1599767502369@mail.yahoo.com> Message-ID: On Thu, Sep 10, 2020 at 2:53 PM Al Lorona wrote: > Power was shut off to my noisy urban neighborhood...radio was amazing > yesterday for six glorious hours. > ====================== Well, here's the flip side. My old qth was noisy enough, but the real eye-opener came when I toted my KX3 to Hyderabad, India a few years ago. I was teaching at the Indian School of Business and living in the faculty apartments, and I had brought the KX3 along expecting to hear a bunch of call-signs that would sound exotic to a midwestern Yank. So I strung up a wire around the walls of my living room, up near the ceiling, and laid a counterpoise out along the floor. Donning my headphones I switched it on, looking forward to an evening of entertainment as I tuned 20 CW. Zowie! What a cacophony of squeals, buzzes, crashes, honks and toots, burps, whistles and grinds. The S-meter jumped up to about S9+10 and stuck there. Nowhere on the band, it seemed, was there a slot wide enough for a signal to peep through. Finally I was able to discern a little peep half-buried beneath the layers of trash, a lonely VU2 calling CQ. I answered him, but of course to no avail. On a later night I heard a few words from a QSO between a local ham and a VR2 in Hong Kong, and that was the sum total of my ham experience while there. Where were the noises coming from? I dunno -- from everywhere, it sounded like. 73, Tony KT0NY From w6jhb at me.com Thu Sep 10 17:28:59 2020 From: w6jhb at me.com (James Bennett) Date: Thu, 10 Sep 2020 14:28:59 -0700 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: References: <603103853.876103.1599767502369.ref@mail.yahoo.com> <603103853.876103.1599767502369@mail.yahoo.com> Message-ID: I can well understand that experience. Back in 2000 my new XYL and I honeymooned in St. Maarten / PJ7. I took a K2 with me and a length of wire and coax. I managed 40 - 50 CW QSO?s in between other activities. After we got back home I wrote an article that ARRL published in one of their online journals. At one time there was a link to it on the Elecraft site. Anyway, one of the things I warned prospective vacationers going to non-US sites was to be prepared for some horrendous QRN. As I mentioned in the article, many foreign countries have no laws governing RF interference. You?ll run into all sorts of crud on the power mains, not to mention some really ugly HF band obliterators in the form of cars and trucks. I suspect some places are better than others. In St. Maarten, every time any truck went down the street by our condo I had to take off the headphones for a while - it was bad, with a capital B! Jim / W6JHB > On Sep 10, 2020, at 2:17 PM, Tony Estep wrote: > > On Thu, Sep 10, 2020 at 2:53 PM Al Lorona wrote: > >> Power was shut off to my noisy urban neighborhood...radio was amazing >> yesterday for six glorious hours. >> > ====================== > Well, here's the flip side. My old qth was noisy enough, but the real > eye-opener came when I toted my KX3 to Hyderabad, India a few years ago. I > was teaching at the Indian School of Business and living in the faculty > apartments, and I had brought the KX3 along expecting to hear a bunch of > call-signs that would sound exotic to a midwestern Yank. So I strung up a > wire around the walls of my living room, up near the ceiling, and laid a > counterpoise out along the floor. Donning my headphones I switched it on, > looking forward to an evening of entertainment as I tuned 20 CW. > Zowie! What a cacophony of squeals, buzzes, crashes, honks and toots, > burps, whistles and grinds. The S-meter jumped up to about S9+10 and stuck > there. Nowhere on the band, it seemed, was there a slot wide enough for a > signal to peep through. Finally I was able to discern a little peep > half-buried beneath the layers of trash, a lonely VU2 calling CQ. I > answered him, but of course to no avail. On a later night I heard a few > words from a QSO between a local ham and a VR2 in Hong Kong, and that was > the sum total of my ham experience while there. Where were the noises > coming from? I dunno -- from everywhere, it sounded like. > > 73, > Tony KT0NY > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 awinger2011 at icloud.com Thu Sep 10 18:03:23 2020 From: awinger2011 at icloud.com (Albert Winger) Date: Thu, 10 Sep 2020 16:03:23 -0600 Subject: [Elecraft] K3 is sold Message-ID: <3FA879AF-83FB-4C85-B6A4-3742D8F79B63@icloud.com> K3 is sold 73 Al W1NGA Monument,CO From ab7echo at gmail.com Thu Sep 10 19:19:20 2020 From: ab7echo at gmail.com (David Gilbert) Date: Thu, 10 Sep 2020 16:19:20 -0700 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: References: <603103853.876103.1599767502369.ref@mail.yahoo.com> <603103853.876103.1599767502369@mail.yahoo.com> Message-ID: <6afb57ea-c9d2-0d8d-54ab-d20862ec877a@gmail.com> I used to travel to Malaysia quite often on business, and one of the guys who worked for me there as an ex-pat in Kuala Lumpur had gotten a 9M2 license.? So I went over to his apartment one evening with the intention of working some 40m CW as a guest op, but the background noise was a horrendous scratchy buzz that ran at least S9+30.? When I went outside to look around I could see why.? Malaysia gets a lot of rain, things are wet much of the time, and back then (at least 30 years ago) many of the electrical insulators on the overhead power lines were dirty with pollution.? I could see constant arcing across dozens of insulators. I'm retired now and live on a reasonably quiet semi-rural hillside, and !sometimes! on a quiet evening my QRN level on 160m is down below S2 even on my Inverted-L.? Counting my blessings ... 73 Dave?? AB7E On 9/10/2020 2:17 PM, Tony Estep wrote: > > ====================== > Well, here's the flip side. My old qth was noisy enough, but the real > eye-opener came when I toted my KX3 to Hyderabad, India a few years ago. I > was teaching at the Indian School of Business and living in the faculty > apartments, and I had brought the KX3 along expecting to hear a bunch of > call-signs that would sound exotic to a midwestern Yank. So I strung up a > wire around the walls of my living room, up near the ceiling, and laid a > counterpoise out along the floor. Donning my headphones I switched it on, > looking forward to an evening of entertainment as I tuned 20 CW. > Zowie! What a cacophony of squeals, buzzes, crashes, honks and toots, > burps, whistles and grinds. The S-meter jumped up to about S9+10 and stuck > there. Nowhere on the band, it seemed, was there a slot wide enough for a > signal to peep through. Finally I was able to discern a little peep > half-buried beneath the layers of trash, a lonely VU2 calling CQ. I > answered him, but of course to no avail. On a later night I heard a few > words from a QSO between a local ham and a VR2 in Hong Kong, and that was > the sum total of my ham experience while there. Where were the noises > coming from? I dunno -- from everywhere, it sounded like. > > 73, > Tony KT0NY From dave at nk7z.net Thu Sep 10 20:28:16 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 10 Sep 2020 17:28:16 -0700 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: <6afb57ea-c9d2-0d8d-54ab-d20862ec877a@gmail.com> References: <603103853.876103.1599767502369.ref@mail.yahoo.com> <603103853.876103.1599767502369@mail.yahoo.com> <6afb57ea-c9d2-0d8d-54ab-d20862ec877a@gmail.com> Message-ID: <1fc82e3b-2c95-466e-5ebd-b930825539ec@nk7z.net> We are getting ready to move... One of the processes I intend on performing on any new site is described at: https://www.nk7z.net/sdr-rfi-survey-p1/ using an SDR as a site survey tool... I will have a quiet location... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 9/10/20 4:19 PM, David Gilbert wrote: > > I used to travel to Malaysia quite often on business, and one of the > guys who worked for me there as an ex-pat in Kuala Lumpur had gotten a > 9M2 license.? So I went over to his apartment one evening with the > intention of working some 40m CW as a guest op, but the background noise > was a horrendous scratchy buzz that ran at least S9+30.? When I went > outside to look around I could see why.? Malaysia gets a lot of rain, > things are wet much of the time, and back then (at least 30 years ago) > many of the electrical insulators on the overhead power lines were dirty > with pollution.? I could see constant arcing across dozens of insulators. > > I'm retired now and live on a reasonably quiet semi-rural hillside, and > !sometimes! on a quiet evening my QRN level on 160m is down below S2 > even on my Inverted-L.? Counting my blessings ... > > 73 > Dave?? AB7E > > > > > On 9/10/2020 2:17 PM, Tony Estep wrote: >> >> ====================== >> Well, here's the flip side. My old qth was noisy enough, but the real >> eye-opener came when I toted my KX3 to Hyderabad, India a few years >> ago. I >> was teaching at the Indian School of Business and living in the faculty >> apartments, and I had brought the KX3 along expecting to hear a bunch of >> call-signs that would sound exotic to a midwestern Yank. So I strung up a >> wire around the walls of my living room, up near the ceiling, and laid a >> counterpoise out along the floor. Donning my headphones I switched it on, >> looking forward to an evening of entertainment as I tuned 20 CW. >> Zowie! What a cacophony of squeals, buzzes, crashes, honks and toots, >> burps, whistles and grinds. The S-meter jumped up to about S9+10 and >> stuck >> there. Nowhere on the band, it seemed, was there a slot wide enough for a >> signal to peep through. Finally I was able to discern a little peep >> half-buried beneath the layers of trash, a lonely VU2 calling CQ. I >> answered him, but of course to no avail. On a later night I heard a few >> words from a QSO between a local ham and a VR2 in Hong Kong, and that was >> the sum total of my ham experience while there. Where were the noises >> coming from? I dunno -- from everywhere, it sounded like. >> >> 73, >> Tony KT0NY > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 n6kr at elecraft.com Thu Sep 10 21:28:21 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 10 Sep 2020 18:28:21 -0700 Subject: [Elecraft] Update on K4 manuals Message-ID: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> I thought I'd post an update given the many questions on this topic. I'm the bottleneck on documentation, something that wasn't supposed to happen, but...stuff happened. No need to rehash that. There are three major documents in the works: 1. K4 Built-In Operating Manual This is an .html document normally viewed on the K4's LCD or external monitor. You get to it by tapping the button labeled "?" in the lower-left-hand corner of the LCD. For review purposes the doc can be viewed in any browser. And in fact, late next week we'll be looking for a few hardy volunteers who don't mind going through 60 pages of text, trying every link. In the radio context, the operating manual is supplemented by direct hyperlinks attached to every control and menu entry. There's a "LAST CONTROL" button that takes you directly to text most closely associated with the last operation performed. 2. K4 Owner's Manual Because of its multitude of full-color illustrations, the owner's manual will be 150-200 pages when finished. It'll be a fully searchable and indexed .pdf file, and two steps up from our earlier manuals. Early K4 users have been using a much smaller document that has many of the same illustrations. The built-in operating manual provides the framework for the owner's manual, so I expect rapid progress on the latter as soon as the former is blessed. 3. K4 Programmer's Reference An early draft of this doc has been in use by a our team and by a few developers who have been vetting it for us. Many of the apps available for the K3/K3S are already working with the K4 in emulation mode. But we're trying to expedite the public version of the reference so developers can take advantage of all of the new features. * * * If you have specific questions about the K4 documentation that I didn't answer above, feel free to post them to the list, or to email me directly (though I have a feeling my inbox is about to become more popular than usual, so I can't guarantee I'll get back to you instantly). As usual, thanks for your patience. 73, Wayne N6KR From dobox at suddenlink.net Thu Sep 10 22:56:09 2020 From: dobox at suddenlink.net (David Box) Date: Thu, 10 Sep 2020 20:56:09 -0600 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> Message-ID: <5B4E9B27-5D56-4273-939C-088D3C14556A@suddenlink.net> What manuals must be completed before hardware ships. My interpretation is hardware will not ship this month. de Dave K5MWR On September 10, 2020 7:28:21 PM MDT, Wayne Burdick wrote: >I thought I'd post an update given the many questions on this topic. >I'm the bottleneck on documentation, something that wasn't supposed to >happen, but...stuff happened. No need to rehash that. > >There are three major documents in the works: > >1. K4 Built-In Operating Manual > >This is an .html document normally viewed on the K4's LCD or external >monitor. You get to it by tapping the button labeled "?" in the >lower-left-hand corner of the LCD. > >For review purposes the doc can be viewed in any browser. And in fact, >late next week we'll be looking for a few hardy volunteers who don't >mind going through 60 pages of text, trying every link. > >In the radio context, the operating manual is supplemented by direct >hyperlinks attached to every control and menu entry. There's a "LAST >CONTROL" button that takes you directly to text most closely associated >with the last operation performed. > >2. K4 Owner's Manual > >Because of its multitude of full-color illustrations, the owner's >manual will be 150-200 pages when finished. It'll be a fully searchable >and indexed .pdf file, and two steps up from our earlier manuals. Early >K4 users have been using a much smaller document that has many of the >same illustrations. > >The built-in operating manual provides the framework for the owner's >manual, so I expect rapid progress on the latter as soon as the former >is blessed. > >3. K4 Programmer's Reference > >An early draft of this doc has been in use by a our team and by a few >developers who have been vetting it for us. Many of the apps available >for the K3/K3S are already working with the K4 in emulation mode. But >we're trying to expedite the public version of the reference so >developers can take advantage of all of the new features. > >* * * > >If you have specific questions about the K4 documentation that I didn't >answer above, feel free to post them to the list, or to email me >directly (though I have a feeling my inbox is about to become more >popular than usual, so I can't guarantee I'll get back to you >instantly). > >As usual, thanks for your patience. > >73, >Wayne >N6KR > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.net > >This list hosted by: http://www.qsl.net >Please help support this email list: http://www.qsl.net/donate.html >Message delivered to dobox at suddenlink.net -- Sent from my Android device with K-9 Mail. Please excuse my brevity. From rick.nk7i at gmail.com Thu Sep 10 22:55:43 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Thu, 10 Sep 2020 19:55:43 -0700 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> Message-ID: <1fbe675c-0f19-6f48-27ed-9f1fd394d391@gmail.com> Wayne, When the K4 firmware is updated, will that install app and package now include an updated manual, installed on the K4 so it's always the most current (or at least as current as the firmware)? I realize that rewriting/updating the manual delays the release of the firmware. 73, stay safe, Rick NK7I On 9/10/2020 6:28 PM, Wayne Burdick wrote: > I thought I'd post an update given the many questions on this topic. I'm the bottleneck on documentation, something that wasn't supposed to happen, but...stuff happened. No need to rehash that. > > There are three major documents in the works: > > 1. K4 Built-In Operating Manual > > This is an .html document normally viewed on the K4's LCD or external monitor. You get to it by tapping the button labeled "?" in the lower-left-hand corner of the LCD. > > For review purposes the doc can be viewed in any browser. And in fact, late next week we'll be looking for a few hardy volunteers who don't mind going through 60 pages of text, trying every link. > > In the radio context, the operating manual is supplemented by direct hyperlinks attached to every control and menu entry. There's a "LAST CONTROL" button that takes you directly to text most closely associated with the last operation performed. > > 2. K4 Owner's Manual > > Because of its multitude of full-color illustrations, the owner's manual will be 150-200 pages when finished. It'll be a fully searchable and indexed .pdf file, and two steps up from our earlier manuals. Early K4 users have been using a much smaller document that has many of the same illustrations. > > The built-in operating manual provides the framework for the owner's manual, so I expect rapid progress on the latter as soon as the former is blessed. > > 3. K4 Programmer's Reference > > An early draft of this doc has been in use by a our team and by a few developers who have been vetting it for us. Many of the apps available for the K3/K3S are already working with the K4 in emulation mode. But we're trying to expedite the public version of the reference so developers can take advantage of all of the new features. > > * * * > > If you have specific questions about the K4 documentation that I didn't answer above, feel free to post them to the list, or to email me directly (though I have a feeling my inbox is about to become more popular than usual, so I can't guarantee I'll get back to you instantly). > > As usual, thanks for your patience. > > 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 rick.nk7i at gmail.com From n6kr at elecraft.com Thu Sep 10 23:06:52 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 10 Sep 2020 20:06:52 -0700 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <5B4E9B27-5D56-4273-939C-088D3C14556A@suddenlink.net> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> <5B4E9B27-5D56-4273-939C-088D3C14556A@suddenlink.net> Message-ID: 100% manual completion is not a prerequisite to shipping. We're temporarily using the early versions, and working hard to get the finished versions ready. 73, Wayne N6KR > On Sep 10, 2020, at 7:56 PM, David Box wrote: > > What manuals must be completed before hardware ships. > My interpretation is hardware will not ship this month. > > de Dave K5MWR > > On September 10, 2020 7:28:21 PM MDT, Wayne Burdick wrote: > I thought I'd post an update given the many questions on this topic. I'm the bottleneck on documentation, something that wasn't supposed to happen, but...stuff happened. No need to rehash that. > > There are three major documents in the works: > > 1. K4 Built-In Operating Manual > > This is an .html document normally viewed on the K4's LCD or external monitor. You get to it by tapping the button labeled "?" in the lower-left-hand corner of the LCD. > > For review purposes the doc can be viewed in any browser. And in fact, late next week we'll be looking for a few hardy volunteers who don't mind going through 60 pages of text, trying every link. > > In the radio context, the operating manual is supplemented by direct hyperlinks attached to every control and menu entry. There's a "LAST CONTROL" button that takes you directly to text most closely associated with the last operation performed. > > 2. K4 Owner's Manual > > Because of its multitude of full-color illustrations, the owner's manual will be 150-200 pages when finished. It'll be a fully searchable and indexed .pdf file, and two steps up from our earlier manuals. Early K4 users have been using a much smaller document that has many of the same illustrations. > > The built-in operating manual provides the framework for the owner's manual, so I expect rapid progress on the latter as soon as the former is blessed. > > 3. K4 Programmer's Reference > > An early draft of this doc has been in use by a our team and by a few developers who have been vetting it for us. Many of the apps available for the K3/K3S are already working with the K4 in emulation mode. But we're trying to expedite the public version of the reference so developers can take advantage of all of the new features. > > * * * > > If you have specific questions about the K4 documentation that I didn't answer above, feel free to post them to the list, or to email me directly (though I have a feeling my inbox is about to become more popular than usual, so I can't guarantee I'll get back to you instantly). > > As usual, thanks for your patience. > > 73, > Wayne > N6KR > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dobox at suddenlink.net > > -- > Sent from my Android device with K-9 Mail. Please excuse my brevity. From n6kr at elecraft.com Thu Sep 10 23:08:41 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 10 Sep 2020 20:08:41 -0700 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <1fbe675c-0f19-6f48-27ed-9f1fd394d391@gmail.com> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> <1fbe675c-0f19-6f48-27ed-9f1fd394d391@gmail.com> Message-ID: <9969AE75-D7E0-46F4-9767-C8CBFB0700F7@elecraft.com> All manuals will be kept updated to reflect the current software. Wayne N6KR > On Sep 10, 2020, at 7:55 PM, Rick NK7I wrote: > > Wayne, > > When the K4 firmware is updated, will that install app and package now include an updated manual, installed on the K4 so it's always the most current (or at least as current as the firmware)? I realize that rewriting/updating the manual delays the release of the firmware. > > 73, stay safe, > Rick NK7I > > > On 9/10/2020 6:28 PM, Wayne Burdick wrote: >> I thought I'd post an update given the many questions on this topic. I'm the bottleneck on documentation, something that wasn't supposed to happen, but...stuff happened. No need to rehash that. >> >> There are three major documents in the works: >> >> 1. K4 Built-In Operating Manual >> >> This is an .html document normally viewed on the K4's LCD or external monitor. You get to it by tapping the button labeled "?" in the lower-left-hand corner of the LCD. >> >> For review purposes the doc can be viewed in any browser. And in fact, late next week we'll be looking for a few hardy volunteers who don't mind going through 60 pages of text, trying every link. >> >> In the radio context, the operating manual is supplemented by direct hyperlinks attached to every control and menu entry. There's a "LAST CONTROL" button that takes you directly to text most closely associated with the last operation performed. >> >> 2. K4 Owner's Manual >> >> Because of its multitude of full-color illustrations, the owner's manual will be 150-200 pages when finished. It'll be a fully searchable and indexed .pdf file, and two steps up from our earlier manuals. Early K4 users have been using a much smaller document that has many of the same illustrations. >> >> The built-in operating manual provides the framework for the owner's manual, so I expect rapid progress on the latter as soon as the former is blessed. >> >> 3. K4 Programmer's Reference >> >> An early draft of this doc has been in use by a our team and by a few developers who have been vetting it for us. Many of the apps available for the K3/K3S are already working with the K4 in emulation mode. But we're trying to expedite the public version of the reference so developers can take advantage of all of the new features. >> >> * * * >> >> If you have specific questions about the K4 documentation that I didn't answer above, feel free to post them to the list, or to email me directly (though I have a feeling my inbox is about to become more popular than usual, so I can't guarantee I'll get back to you instantly). >> >> As usual, thanks for your patience. >> >> 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 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 n6kr at elecraft.com From norrislawfirm2 at gmail.com Thu Sep 10 23:15:35 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Thu, 10 Sep 2020 20:15:35 -0700 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <9969AE75-D7E0-46F4-9767-C8CBFB0700F7@elecraft.com> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> <1fbe675c-0f19-6f48-27ed-9f1fd394d391@gmail.com> <9969AE75-D7E0-46F4-9767-C8CBFB0700F7@elecraft.com> Message-ID: I would like to see the use of change bars, highlighted text, or at least a change summary in each new release of the online manual--at least after the early rapid changes settle down. 73 Eric WD6DBM On Thu, Sep 10, 2020, 8:10 PM Wayne Burdick wrote: > All manuals will be kept updated to reflect the current software. > > Wayne > N6KR > > > On Sep 10, 2020, at 7:55 PM, Rick NK7I wrote: > > > > Wayne, > > > > When the K4 firmware is updated, will that install app and package now > include an updated manual, installed on the K4 so it's always the most > current (or at least as current as the firmware)? I realize that > rewriting/updating the manual delays the release of the firmware. > > > > 73, stay safe, > > Rick NK7I > > > > > > On 9/10/2020 6:28 PM, Wayne Burdick wrote: > >> I thought I'd post an update given the many questions on this topic. > I'm the bottleneck on documentation, something that wasn't supposed to > happen, but...stuff happened. No need to rehash that. > >> > >> There are three major documents in the works: > >> > >> 1. K4 Built-In Operating Manual > >> > >> This is an .html document normally viewed on the K4's LCD or external > monitor. You get to it by tapping the button labeled "?" in the > lower-left-hand corner of the LCD. > >> > >> For review purposes the doc can be viewed in any browser. And in fact, > late next week we'll be looking for a few hardy volunteers who don't mind > going through 60 pages of text, trying every link. > >> > >> In the radio context, the operating manual is supplemented by direct > hyperlinks attached to every control and menu entry. There's a "LAST > CONTROL" button that takes you directly to text most closely associated > with the last operation performed. > >> > >> 2. K4 Owner's Manual > >> > >> Because of its multitude of full-color illustrations, the owner's > manual will be 150-200 pages when finished. It'll be a fully searchable and > indexed .pdf file, and two steps up from our earlier manuals. Early K4 > users have been using a much smaller document that has many of the same > illustrations. > >> > >> The built-in operating manual provides the framework for the owner's > manual, so I expect rapid progress on the latter as soon as the former is > blessed. > >> > >> 3. K4 Programmer's Reference > >> > >> An early draft of this doc has been in use by a our team and by a few > developers who have been vetting it for us. Many of the apps available for > the K3/K3S are already working with the K4 in emulation mode. But we're > trying to expedite the public version of the reference so developers can > take advantage of all of the new features. > >> > >> * * * > >> > >> If you have specific questions about the K4 documentation that I didn't > answer above, feel free to post them to the list, or to email me directly > (though I have a feeling my inbox is about to become more popular than > usual, so I can't guarantee I'll get back to you instantly). > >> > >> As usual, thanks for your patience. > >> > >> 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 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 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 norrislawfirm2 at gmail.com > From n6kr at elecraft.com Thu Sep 10 23:51:35 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 10 Sep 2020 20:51:35 -0700 Subject: [Elecraft] Update on K4 manuals In-Reply-To: References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> <1fbe675c-0f19-6f48-27ed-9f1fd394d391@gmail.com> <9969AE75-D7E0-46F4-9767-C8CBFB0700F7@elecraft.com> Message-ID: Definitely. Wayne > On Sep 10, 2020, at 8:15 PM, Eric Norris wrote: > > I would like to see the use of change bars, highlighted text, or at least a change summary in each new release of the online manual--at least after the early rapid changes settle down. > > 73 Eric WD6DBM > > On Thu, Sep 10, 2020, 8:10 PM Wayne Burdick wrote: > All manuals will be kept updated to reflect the current software. > > Wayne > N6KR > > > On Sep 10, 2020, at 7:55 PM, Rick NK7I wrote: > > > > Wayne, > > > > When the K4 firmware is updated, will that install app and package now include an updated manual, installed on the K4 so it's always the most current (or at least as current as the firmware)? I realize that rewriting/updating the manual delays the release of the firmware. > > > > 73, stay safe, > > Rick NK7I > > > > > > On 9/10/2020 6:28 PM, Wayne Burdick wrote: > >> I thought I'd post an update given the many questions on this topic. I'm the bottleneck on documentation, something that wasn't supposed to happen, but...stuff happened. No need to rehash that. > >> > >> There are three major documents in the works: > >> > >> 1. K4 Built-In Operating Manual > >> > >> This is an .html document normally viewed on the K4's LCD or external monitor. You get to it by tapping the button labeled "?" in the lower-left-hand corner of the LCD. > >> > >> For review purposes the doc can be viewed in any browser. And in fact, late next week we'll be looking for a few hardy volunteers who don't mind going through 60 pages of text, trying every link. > >> > >> In the radio context, the operating manual is supplemented by direct hyperlinks attached to every control and menu entry. There's a "LAST CONTROL" button that takes you directly to text most closely associated with the last operation performed. > >> > >> 2. K4 Owner's Manual > >> > >> Because of its multitude of full-color illustrations, the owner's manual will be 150-200 pages when finished. It'll be a fully searchable and indexed .pdf file, and two steps up from our earlier manuals. Early K4 users have been using a much smaller document that has many of the same illustrations. > >> > >> The built-in operating manual provides the framework for the owner's manual, so I expect rapid progress on the latter as soon as the former is blessed. > >> > >> 3. K4 Programmer's Reference > >> > >> An early draft of this doc has been in use by a our team and by a few developers who have been vetting it for us. Many of the apps available for the K3/K3S are already working with the K4 in emulation mode. But we're trying to expedite the public version of the reference so developers can take advantage of all of the new features. > >> > >> * * * > >> > >> If you have specific questions about the K4 documentation that I didn't answer above, feel free to post them to the list, or to email me directly (though I have a feeling my inbox is about to become more popular than usual, so I can't guarantee I'll get back to you instantly). > >> > >> As usual, thanks for your patience. > >> > >> 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 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 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 norrislawfirm2 at gmail.com From ghyoungman at gmail.com Fri Sep 11 00:19:49 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 11 Sep 2020 00:19:49 -0400 Subject: [Elecraft] K4 -- Spectral subtraction noise reduction Message-ID: I?ve recently been exploring quite a few of the many SDR receivers on KiwiSDR. One of the (many) features of this system is an option to select spectral subtraction NR. I?m now really hyped about the fact that this will be available at some point on the K4. It works exceptionally well. So well, that I leave it turned on most of the time. Often, stations you can barely copy down in the junk literally pop up out of the noise. Don?t know if this will be available at initial shipment, but it?s certainly something to look forward to if not. I?ve only tried it on AM and SSB at this point, so not sure about CW. Just something else to whet the appetite for that eventual ?you?re up? email from Elecraft sales ? :) Grant NQ5T From hdv at kpnplanet.nl Fri Sep 11 02:18:26 2020 From: hdv at kpnplanet.nl (Henk de Vries) Date: Fri, 11 Sep 2020 08:18:26 +0200 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: Message-ID: <9be96123-f3f6-11ea-affb-005056ab7447@smtp.kpnmail.nl> It has also to do with Intetnet being provided by all kinds of poorly shielded wiring hanging above ground. In V31 I always operated with a battery from a remote beach location due to continous? 9+++ noise in/near my appartment block and other urban areas.73 HenkPA0C V31HV -------- Oorspronkelijk bericht --------Van: James Bennett via Elecraft Datum: 10-09-2020 23:29 (GMT+01:00) Aan: Elecraft Reflector Reflector Onderwerp: Re: [Elecraft] [OT] A Very Quiet Day I can well understand that experience.Back in 2000 my new XYL and I honeymooned in St. Maarten / PJ7. I took a K2 with me and a length of wire and coax. I managed 40 - 50 CW QSO?s in between other activities. After we got back home I wrote an article that ARRL published in one of their online journals. At one time there was a link to it on the Elecraft site.Anyway, one of the things I warned prospective vacationers going to non-US sites was to be prepared for some horrendous QRN. As I mentioned in the article, many foreign countries have no laws governing RF interference. You?ll run into all sorts of crud on the power mains, not to mention some really ugly HF band obliterators in the form of cars and trucks. I suspect some places are better than others. In St. Maarten, every time any truck went down the street by our condo I had to take off the headphones for a while - it was bad, with a capital B!Jim / W6JHB> On Sep 10, 2020, at 2:17 PM, Tony Estep wrote:> > On Thu, Sep 10, 2020 at 2:53 PM Al Lorona wrote:> >> Power was shut off to my noisy urban neighborhood...radio was amazing>> yesterday for six glorious hours.>> > ======================> Well, here's the flip side. My old qth was noisy enough, but the real> eye-opener came when I toted my KX3 to Hyderabad, India a few years ago. I> was teaching at the Indian School of Business and living in the faculty> apartments, and I had brought the KX3 along expecting to hear a bunch of> call-signs that would sound exotic to a midwestern Yank. So I strung up a> wire around the walls of my living room, up near the ceiling, and laid a> counterpoise out along the floor. Donning my headphones I switched it on,> looking forward to an evening of entertainment as I tuned 20 CW.> Zowie! What a cacophony of squeals, buzzes, crashes, honks and toots,> burps, whistles and grinds. The S-meter jumped up to about S9+10 and stuck> there. Nowhere on the band, it seemed, was there a slot wide enough for a> signal to peep through. Finally I was able to discern a little peep> half-buried beneath the layers of trash, a lonely VU2 calling CQ. I> answered him, but of course to no avail. On a later night I heard a few> words from a QSO between a local ham and a VR2 in Hong Kong, and that was> the sum total of my ham experience while there. Where were the noises> coming from? I dunno -- from everywhere, it sounded like.> > 73,> Tony KT0NY> ______________________________________________________________> Elecraft mailing list> Home: http://mailman.qth.net/mailman/listinfo/elecraft> Help: http://mailman.qth.net/mmfaq.htm> Post: mailto:Elecraft at mailman.qth.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 listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:Elecraft at mailman.qth.netThis list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to hdv at kpnplanet.nl From kl7uw at acsalaska.net Fri Sep 11 03:43:47 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Thu, 10 Sep 2020 23:43:47 -0800 Subject: [Elecraft] [OT] A Very Quiet Day Message-ID: <202009110743.08B7hnKm026704@mail46c28.carrierzone.com> Here in Alaska, we have frequent power outages. More often in winter due to wind storms knocking down wires. A few years ago we bought a 6500w Honda inverter generator to provide emergency power. Its large enough to supply the entire house load. One of the interesting things was noting the drop in radio noise when power is off. We see no lights in the neighborhood other than ours so any noise would be made in our house. 2m noise drop almost to S0. Normal quiet times with commercial power runs S3. Only see S2 or less on 2m when running our generator. At times local noise on 2m rises to S7 which renders the band unusable except strong local signals. I just set up my 6m eme system and measured S6/7 noise with the ARR preamp. PR6 shows S3/4. ARR gain is 25-dB vs about 15-dB for the PR6, so I added a 10-dB attenuator in-line with the ARR preamp which now matches the PR6 noise floor pretty well. ARR is closer to the antenna with 0.5 dB NF whereas the PR6 is about 0.7 dB NF. Not really noticeable with local signals but makes a little improvement with weak eme signals. When I first came to AK, I lived off the grid (about 2-3 miles from nearest power lines (town of pop 75). 80m band was S0 on my dipole at night. Really heard well back then. I now live 100 miles west of there in a buried utility area (2 to 5 acre parcels) which probably helps (though overhead lines are only 1/2 mile away. HF is typically S5 noise with my K3 (preamp off). I use the PR6 on 10m & 6m so that raises the noise floor a bit. Our pop is 4,000 spread over 76 square miles with a city of 15,000 12 miles south. Going to bush towns is no insurance for low noise. I worked in a town 400 miles west of Anchorage (pop 3500) and tried setting up a long yagi on 2m on roof above the TV station. Noise was over S9 (due to arc igniters in their furnace). 2m was totally unusable (trying for a long shot to Anchorage). They ran a monitor on the AM radio station which blared horrible noise when they shut down the transmitter at night. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From 73.de.ne1ee at gmail.com Fri Sep 11 06:44:53 2020 From: 73.de.ne1ee at gmail.com (Rich NE1EE) Date: Fri, 11 Sep 2020 06:44:53 -0400 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <9969AE75-D7E0-46F4-9767-C8CBFB0700F7@elecraft.com> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> <1fbe675c-0f19-6f48-27ed-9f1fd394d391@gmail.com> <9969AE75-D7E0-46F4-9767-C8CBFB0700F7@elecraft.com> Message-ID: <5f5b5949.1c69fb81.e413b.2055@mx.google.com> On 2020-09-10 20:08:-0700, you wrote: >All manuals will be kept updated to reflect the current software. > >Wayne >N6KR Will you preserve historical versions for those who don't have upgrades? I haven't looked on the Elecraft website to see if there are version-specific manuals for other products. From kurtt at pinrod.com Fri Sep 11 09:32:31 2020 From: kurtt at pinrod.com (Kurt Pawlikowski) Date: Fri, 11 Sep 2020 08:32:31 -0500 Subject: [Elecraft] K4 -- Spectral subtraction noise reduction In-Reply-To: References: Message-ID: Grant, ??? You peaked my interest. I attempted to find examples of spectral subtraction and only found talks about it (no audio examples). Would you happen to know where I might find some examples? Maybe comparing results between several noise reduction methods? ??? Thanks! ??? kurtt WB9FMC On 9/10/2020 11:19 PM, Grant Youngman wrote: > I?ve recently been exploring quite a few of the many SDR receivers on KiwiSDR. One of the (many) features of this system is an option to select spectral subtraction NR. > > I?m now really hyped about the fact that this will be available at some point on the K4. It works exceptionally well. So well, that I leave it turned on most of the time. Often, stations you can barely copy down in the junk literally pop up out of the noise. Don?t know if this will be available at initial shipment, but it?s certainly something to look forward to if not. I?ve only tried it on AM and SSB at this point, so not sure about CW. > > Just something else to whet the appetite for that eventual ?you?re up? email from Elecraft sales ? :) > > Grant NQ5T > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kurtt at pinrod.com From ny9h at arrl.net Fri Sep 11 09:57:57 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Fri, 11 Sep 2020 09:57:57 -0400 Subject: [Elecraft] [Elecraft-KX] Help! MH3 mic PTT broken, fixable? - ELECTRET MICROPHONES In-Reply-To: <8328.1599829881046880070@groups.io> References: <8328.1599829881046880070@groups.io> Message-ID: most ANY electret microphone element will be excellent for use with ham radio. The Panasonic are among the most expensive ( 8pcs New WM-61A Panasonic Electret Condenser Mic Capsule Mic?? )?? on ebay That leaves the case cord and plug for the "mic" factory to finish. Many of the fake 'icom" mics I have bought on line have had the vinyl ( NOT RUBBER)? coil cord DISINTEGRATE into peices 3-4 years later. Never has issues with switches or the cases. Remember some rigs , especially ICOM need the higher output level found with an electret, as they are designed / supplied with an eletret.? Elecraft , in their wisdom, provides enough gain so while electrets work, there is enough gain to easily use a dynamic microphone. Remember when Heil sold microphones for icoms that were way too low on gain. So bob then sourced mics with electrets ( higher gain) for icom. I spent 20+ years working under contract for ( in order) Sennheiser 1976-81; AKG 81-86 Shure 86-91...while I am not an engineer one learns much along the trip. bill???? ( now using an AKG gooseneck paging microphone in my console??? pix at qrz.com) -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From ny9h at arrl.net Fri Sep 11 10:30:10 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Fri, 11 Sep 2020 10:30:10 -0400 Subject: [Elecraft] Fwd: Re: K4 -- Spectral subtraction noise reduction In-Reply-To: References: Message-ID: <0fd5c552-4cf9-f9e0-5dd6-81f7c7fa31c5@arrl.net> I do believe that? BHI Ltd? ( Graham)? has been using that for years... ? check out their website . Under downloads there are several examples of how well it works,.( really well...) https://www.bhi-ltd.com/downloads/sound-files/ I always have been suggesting to Eric & Wayne to look at the BHI algorythm ...? patented ?? maybe it has a license fee ??? but it works substantially better than 'clearspeech" and the rest of them. Till recently GAP was the US distributor of the BHI products, then Graham finally started doing US marketing himself...a much better job. Used to use BHI speakers on my Microham mk2r connected to K3 & 7800, as it was markedly better at NR. Now I have the Parametric/NR box feeding some 3" realistic box speakers. +++++++++++++++++++++++++++++++++ On 9/11/2020 9:32 AM, Kurt Pawlikowski wrote: > Grant, > > ??? You peaked my interest. I attempted to find examples of spectral > subtraction and only found talks about it (no audio examples). Would > you happen to know where I might find some examples? Maybe comparing > results between several noise reduction methods? > > ??? Thanks! > > ??? kurtt WB9FMC > > On 9/10/2020 11:19 PM, Grant Youngman wrote: >> I?ve recently been exploring quite a few of the many SDR receivers on >> KiwiSDR.? One of the (many) features of this system is an option to >> select spectral subtraction NR. >> >> I?m now really hyped about the fact that this will be available at >> some point on the K4.? It works exceptionally well.? So well, that I >> leave it turned on most of the time. Often, stations you can barely >> copy down in the junk literally pop up out of the noise.? Don?t know >> if this will be available at initial shipment, but it?s certainly >> something to look forward to if not.? I?ve only tried it on AM and >> SSB at this point, so not sure about CW. >> >> Just something else to whet the appetite for that eventual ?you?re >> up? email from Elecraft sales ?? :) >> >> Grant NQ5T >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kurtt at pinrod.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 nelasat at yahoo.com Fri Sep 11 12:17:04 2020 From: nelasat at yahoo.com (Keith Ennis) Date: Fri, 11 Sep 2020 16:17:04 +0000 (UTC) Subject: [Elecraft] KV5J's line of Digital Displays for Elecraft's W2, KXPA100, KPA500, and KPA1500 In-Reply-To: <1981732117.871518.1598911420777@mail.yahoo.com> References: <170014741.1491117.1597412747296.ref@mail.yahoo.com> <170014741.1491117.1597412747296@mail.yahoo.com> <1981732117.871518.1598911420777@mail.yahoo.com> Message-ID: <114467263.1140091.1599841024953@mail.yahoo.com> Bill looking for a display for his KPA1500 from Utah, your email keeps bouncing.? Please email me again. Keith On Monday, August 31, 2020, 05:03:40 PM CDT, Keith Ennis wrote: Back on line and have units in stock after hurricane Laura. www.kv5j.com Keith, KV5J On Friday, August 14, 2020, 08:45:47 AM CDT, Keith Ennis wrote: Digital Display Unit for Elecraft's W2 Watt Meter: ?? With the digital read out the DDU takes the guess work out of the LED lights. ?? ? Digital Display Unit for Elecraft's KXPA100 amplifier: ?? Don't wait for a fault light to come on.? Keep an eye on 5 crucial readings at all times. 1. Power amplifier's heat sink temperature 2. Power amplifier's high voltage supply voltage 3. Power amplifier's current 4. Power amplifier's output power 5. SWR that the KXPA100 sees at its output ?? ? Digital Display Unit for Elecraft's KPA500 amplifier: ?? Instead of seeing only 1 crucial reading, monitor 5 at all times. 1. Power amplifier's heat sink temperature 2. Power amplifier's high voltage supply voltage 3. Power amplifier's current 4. Power amplifier's output power 5. SWR that the KPA500 sees at its output ?? ? Digital Display Unit for Elecraft's KPA1500 amplifier: ?? Displays the same display that is on the KPA1500 Amplifier? Change the display on the KPA1500 and the DDU changes ?? ? All of the Digital Display Units: ?? Display Unit can be located at a more visible location Up to the RS232 limit from unit Easy to read 2 line display No USB or serial cable to computer No com port in Windows to manage No computer needed Plug and Play Simply connect the SUPPLIED dc power cable (with inline on/off switch) from the DDU to power supply and SUPPLIED XCVR SERIAL data jumper cable to the device Retains all functions of the front panel All displayed info obtained directly from the device ?? Only 4" x 4" x 2" ?? For more information and ordering go to:? ?www.kv5j.com Thanks 73, Keith,KV5J From wes_n7ws at triconet.org Fri Sep 11 12:20:25 2020 From: wes_n7ws at triconet.org (Wes) Date: Fri, 11 Sep 2020 09:20:25 -0700 Subject: [Elecraft] K4 -- Spectral subtraction noise reduction In-Reply-To: References: Message-ID: <995b41a7-8499-46e9-6c3f-0f85febe7a89@triconet.org> https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes in. Wes N7WS On 9/11/2020 6:32 AM, Kurt Pawlikowski wrote: > Grant, > > ??? You peaked my interest. I attempted to find examples of spectral > subtraction and only found talks about it (no audio examples). Would you > happen to know where I might find some examples? Maybe comparing results > between several noise reduction methods? > > ??? Thanks! > > ??? kurtt WB9FMC > > On 9/10/2020 11:19 PM, Grant Youngman wrote: >> I?ve recently been exploring quite a few of the many SDR receivers on >> KiwiSDR.? One of the (many) features of this system is an option to select >> spectral subtraction NR. >> >> I?m now really hyped about the fact that this will be available at some point >> on the K4.? It works exceptionally well.? So well, that I leave it turned on >> most of the time.? Often, stations you can barely copy down in the junk >> literally pop up out of the noise.? Don?t know if this will be available at >> initial shipment, but it?s certainly something to look forward to if not.? >> I?ve only tried it on AM and SSB at this point, so not sure about CW. >> >> Just something else to whet the appetite for that eventual ?you?re up? email >> from Elecraft sales ?? :) >> >> Grant NQ5T >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kurtt at pinrod.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wes_n7ws at triconet.org From wb4ooa at gmail.com Fri Sep 11 12:29:17 2020 From: wb4ooa at gmail.com (Ron Durie) Date: Fri, 11 Sep 2020 12:29:17 -0400 Subject: [Elecraft] FS K3S with P3 Message-ID: <000801d68858$b2986640$17c932c0$@gmail.com> My K3S SN:10684 Has every option installed, except the 2meter module. It has also been upgraded by Elecraft for improved Transmit IMD. Original owner; non-smoker; Latest Firmware; and in like new condition. No scratches or even smudges. Even the knobs are new. Includes connecting cables; manuals; and the original Elecraft K3S shipping box with foam support. A picture of this rig is on my QRZ page. This is the 4th K3 series that I have built. Also, my P3 SN:2710 With SVGA option & Wattmeter option. Original owner and also in like new condition. In my opinion this is the most accurate spectrum monitor on the market today. All Connector Pins (on both units) have been treated with Caig DeOxit solution for reliable performance. Total package price: $3395.00 shipped to CONUS. My Email: WB4OOA at gmail.com Ron Durie WB4OOA From k2asp at kanafi.org Fri Sep 11 13:00:35 2020 From: k2asp at kanafi.org (Phil Kane) Date: Fri, 11 Sep 2020 10:00:35 -0700 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: <6afb57ea-c9d2-0d8d-54ab-d20862ec877a@gmail.com> References: <603103853.876103.1599767502369.ref@mail.yahoo.com> <603103853.876103.1599767502369@mail.yahoo.com> <6afb57ea-c9d2-0d8d-54ab-d20862ec877a@gmail.com> Message-ID: <724354cb-b17b-75ea-8b84-21c3017e5dff@kanafi.org> On 9/10/2020 4:19 PM, David Gilbert wrote: > Malaysia gets a lot of rain, things are wet much of the time, and back > then (at least 30 years ago) many of the electrical insulators on the > overhead power lines were dirty with pollution.? I could see constant > arcing across dozens of insulators. Yet one of the "cures" of QRM from electrical lines is to wash the insulators. Many large utilities have a specialized vehicle for that. We have buried utilities here so there's no insulators to wash.... 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 Fri Sep 11 13:59:51 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 11 Sep 2020 10:59:51 -0700 Subject: [Elecraft] [OT] A Very Quiet Day In-Reply-To: <724354cb-b17b-75ea-8b84-21c3017e5dff@kanafi.org> References: <603103853.876103.1599767502369.ref@mail.yahoo.com> <603103853.876103.1599767502369@mail.yahoo.com> <6afb57ea-c9d2-0d8d-54ab-d20862ec877a@gmail.com> <724354cb-b17b-75ea-8b84-21c3017e5dff@kanafi.org> Message-ID: <84ed6533-a113-3402-9016-efe53eeecc23@foothill.net> I grew up in So Central Los Angeles, 1/2 block from one of the original 2-circuit 230 KV transmission lines from Hoover Dam.? Several times a year, LA DWP came around with a tank truck and coupled it to a pipe running up the tower.? A guy climbed a ladder inside the tower, hooked up a nozzle at each of the three phases, and blew a water/air mixture at the insulators. then they moved on to the next tower.? My noise level always declined about an S-unit after the bath. Often though, the problems aren't the insulators themselves but loose hardware on the pole that create micro-arcing.? Rain sometimes makes that noise worse, and wind really can. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/11/2020 10:00 AM, Phil Kane wrote: > On 9/10/2020 4:19 PM, David Gilbert wrote: > >> Malaysia gets a lot of rain, things are wet much of the time, and back >> then (at least 30 years ago) many of the electrical insulators on the >> overhead power lines were dirty with pollution.? I could see constant >> arcing across dozens of insulators. > Yet one of the "cures" of QRM from electrical lines is to wash the > insulators. Many large utilities have a specialized vehicle for that. > We have buried utilities here so there's no insulators to wash.... > > 73 de K2ASP - Phil Kane > Elecraft K2/100 s/n 5402 > From ea3adv at googlemail.com Fri Sep 11 14:29:51 2020 From: ea3adv at googlemail.com (=?UTF-8?Q?Vicen=C3=A7?=) Date: Fri, 11 Sep 2020 20:29:51 +0200 Subject: [Elecraft] Test Message-ID: From ea3adv at googlemail.com Fri Sep 11 14:33:32 2020 From: ea3adv at googlemail.com (=?UTF-8?Q?Vicen=C3=A7?=) Date: Fri, 11 Sep 2020 20:33:32 +0200 Subject: [Elecraft] test again Message-ID: From ea3adv at googlemail.com Fri Sep 11 14:41:50 2020 From: ea3adv at googlemail.com (=?UTF-8?Q?Vicen=C3=A7?=) Date: Fri, 11 Sep 2020 20:41:50 +0200 Subject: [Elecraft] test Message-ID: From k7sss at aol.com Fri Sep 11 14:43:38 2020 From: k7sss at aol.com (k7sss at aol.com) Date: Fri, 11 Sep 2020 18:43:38 +0000 (UTC) Subject: [Elecraft] test again In-Reply-To: References: Message-ID: <966829316.1197873.1599849818970@mail.yahoo.com> Hi?You made it through the reflector. However please use text not anything else Also please include your name and call.73Jim H? k7sss??In a message dated 9/11/2020 11:36:36 AM Pacific Standard Time, elecraft at mailman.qth.net writes:? ?______________________________________________________________Elecraft mailing listHome: http://mailman.qth.net/mailman/listinfo/elecraftHelp: http://mailman.qth.net/mmfaq.htmPost: mailto:Elecraft at mailman.qth.net?This list hosted by: http://www.qsl.netPlease help support this email list: http://www.qsl.net/donate.htmlMessage delivered to k7sss at aol.com From ea3adv at googlemail.com Fri Sep 11 14:47:56 2020 From: ea3adv at googlemail.com (=?UTF-8?Q?Vicen=C3=A7?=) Date: Fri, 11 Sep 2020 20:47:56 +0200 Subject: [Elecraft] K2 VCO shield kits for sale in EU Message-ID: Just bought two of those brand new kits from Chris, G4BUE, but when I received them I realised that they are surplus to my needs. ( I am not going to add them to my K2s). They are available FS. Please contact me off list. 72/73 de Vicen?, EA3ADV From ab4iq at comcast.net Fri Sep 11 16:48:02 2020 From: ab4iq at comcast.net (Ed Pflueger) Date: Fri, 11 Sep 2020 15:48:02 -0500 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> Message-ID: <00eb01d6887c$d83ac220$88b04660$@comcast.net> Does that mean there will be no hard bound manual? The last Ice storm we had in W. KY we had no internet for 28 days at least at my house and others was longer. What am I going to take to the outhouse to read? LOL Ed.. AB4IQ -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Wayne Burdick Sent: Thursday, September 10, 2020 8:28 PM To: Elecraft Reflector Subject: [Elecraft] Update on K4 manuals I thought I'd post an update given the many questions on this topic. I'm the bottleneck on documentation, something that wasn't supposed to happen, but...stuff happened. No need to rehash that. There are three major documents in the works: 1. K4 Built-In Operating Manual This is an .html document normally viewed on the K4's LCD or external monitor. You get to it by tapping the button labeled "?" in the lower-left-hand corner of the LCD. For review purposes the doc can be viewed in any browser. And in fact, late next week we'll be looking for a few hardy volunteers who don't mind going through 60 pages of text, trying every link. In the radio context, the operating manual is supplemented by direct hyperlinks attached to every control and menu entry. There's a "LAST CONTROL" button that takes you directly to text most closely associated with the last operation performed. 2. K4 Owner's Manual Because of its multitude of full-color illustrations, the owner's manual will be 150-200 pages when finished. It'll be a fully searchable and indexed .pdf file, and two steps up from our earlier manuals. Early K4 users have been using a much smaller document that has many of the same illustrations. The built-in operating manual provides the framework for the owner's manual, so I expect rapid progress on the latter as soon as the former is blessed. 3. K4 Programmer's Reference An early draft of this doc has been in use by a our team and by a few developers who have been vetting it for us. Many of the apps available for the K3/K3S are already working with the K4 in emulation mode. But we're trying to expedite the public version of the reference so developers can take advantage of all of the new features. * * * If you have specific questions about the K4 documentation that I didn't answer above, feel free to post them to the list, or to email me directly (though I have a feeling my inbox is about to become more popular than usual, so I can't guarantee I'll get back to you instantly). As usual, thanks for your patience. 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 ab4iq at comcast.net From w4kx at mac.com Fri Sep 11 15:23:03 2020 From: w4kx at mac.com (Tom Doligalski) Date: Fri, 11 Sep 2020 15:23:03 -0400 Subject: [Elecraft] K4 -- Spectral subtraction noise reduction In-Reply-To: <995b41a7-8499-46e9-6c3f-0f85febe7a89@triconet.org> References: <995b41a7-8499-46e9-6c3f-0f85febe7a89@triconet.org> Message-ID: <94456A80-67AB-442C-A82E-2C7BCE8BBBBF@mac.com> Spectral subtraction was used in the JPS noise reduction units long ago. I still have my NIR-12. Tom W4KX Sent from my iPad > On Sep 11, 2020, at 12:21 PM, Wes wrote: > > ?https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes in. > > Wes N7WS > > > >> On 9/11/2020 6:32 AM, Kurt Pawlikowski wrote: >> Grant, >> >> You peaked my interest. I attempted to find examples of spectral subtraction and only found talks about it (no audio examples). Would you happen to know where I might find some examples? Maybe comparing results between several noise reduction methods? >> >> Thanks! >> >> kurtt WB9FMC >> >>> On 9/10/2020 11:19 PM, Grant Youngman wrote: >>> I?ve recently been exploring quite a few of the many SDR receivers on KiwiSDR. One of the (many) features of this system is an option to select spectral subtraction NR. >>> >>> I?m now really hyped about the fact that this will be available at some point on the K4. It works exceptionally well. So well, that I leave it turned on most of the time. Often, stations you can barely copy down in the junk literally pop up out of the noise. Don?t know if this will be available at initial shipment, but it?s certainly something to look forward to if not. I?ve only tried it on AM and SSB at this point, so not sure about CW. >>> >>> Just something else to whet the appetite for that eventual ?you?re up? email from Elecraft sales ? :) >>> >>> Grant NQ5T >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to kurtt at pinrod.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to wes_n7ws at triconet.org > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to w4kx at mac.com From ghyoungman at gmail.com Fri Sep 11 18:30:57 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Fri, 11 Sep 2020 18:30:57 -0400 Subject: [Elecraft] K4 -- Spectral subtraction noise reduction In-Reply-To: <94456A80-67AB-442C-A82E-2C7BCE8BBBBF@mac.com> References: <995b41a7-8499-46e9-6c3f-0f85febe7a89@triconet.org> <94456A80-67AB-442C-A82E-2C7BCE8BBBBF@mac.com> Message-ID: <069F6B1B-646B-45AC-858B-A8D717447131@gmail.com> You can?t really compare an NIR-12 to a more current implementation. The KiwiSDR algorithm runs on a BeagleBone processor with virtually no discernible artifacts. The artifacts were the achilles heel of the NIR-12. I had one for a while. Never liked it. Presuming Elecraft delivers what they have said they?re working on, it will be a great addition to the radio. Grant NQ5T > On Sep 11, 2020, at 3:23 PM, Tom Doligalski via Elecraft wrote: > > Spectral subtraction was used in the JPS noise reduction units long ago. I still have my NIR-12. > > Tom W4KX > > Sent from my iPad > >> On Sep 11, 2020, at 12:21 PM, Wes wrote: >> >> ?https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes in. >> From jstengrevics at comcast.net Fri Sep 11 18:39:19 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Fri, 11 Sep 2020 18:39:19 -0400 Subject: [Elecraft] K4 -- Spectral subtraction noise reduction In-Reply-To: <069F6B1B-646B-45AC-858B-A8D717447131@gmail.com> References: <995b41a7-8499-46e9-6c3f-0f85febe7a89@triconet.org> <94456A80-67AB-442C-A82E-2C7BCE8BBBBF@mac.com> <069F6B1B-646B-45AC-858B-A8D717447131@gmail.com> Message-ID: <19FF0E7A-1278-4880-AB83-37D4CDBAD587@comcast.net> And, it will work on digital modes. John WA1EAZ > On Sep 11, 2020, at 6:30 PM, Grant Youngman wrote: > > You can?t really compare an NIR-12 to a more current implementation. The KiwiSDR algorithm runs on a BeagleBone processor with virtually no discernible artifacts. The artifacts were the achilles heel of the NIR-12. I had one for a while. Never liked it. > > Presuming Elecraft delivers what they have said they?re working on, it will be a great addition to the radio. > > Grant NQ5T > >> On Sep 11, 2020, at 3:23 PM, Tom Doligalski via Elecraft wrote: >> >> Spectral subtraction was used in the JPS noise reduction units long ago. I still have my NIR-12. >> >> Tom W4KX >> >> Sent from my iPad >> >>> On Sep 11, 2020, at 12:21 PM, Wes wrote: >>> >>> ?https://www.rtl-sdr.com/forum-talk-videos-from-hamvention-2017/ 51 minutes in. >>> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jim at audiosystemsgroup.com Fri Sep 11 20:07:53 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Fri, 11 Sep 2020 17:07:53 -0700 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <00eb01d6887c$d83ac220$88b04660$@comcast.net> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> <00eb01d6887c$d83ac220$88b04660$@comcast.net> Message-ID: <6f4467df-5e60-8005-5c12-92755f9fbb6a@audiosystemsgroup.com> On 9/11/2020 1:48 PM, Ed Pflueger wrote: > What am I going to take to the outhouse to read? Back is WV where I grew up it was known as "the catalog department," where the older (and less desirable ) catalogs served a function other than reading. 73, Jim K9YC From pvandyke1953 at gmail.com Fri Sep 11 20:12:33 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Fri, 11 Sep 2020 20:12:33 -0400 Subject: [Elecraft] Update on K4 manuals In-Reply-To: <6f4467df-5e60-8005-5c12-92755f9fbb6a@audiosystemsgroup.com> References: <10C8BFD6-3FB8-4D88-9C8F-7BBBD8012227@elecraft.com> <00eb01d6887c$d83ac220$88b04660$@comcast.net> <6f4467df-5e60-8005-5c12-92755f9fbb6a@audiosystemsgroup.com> Message-ID: Ya got to watch for the staples!! Grinning Paul KB9AVO On Fri, Sep 11, 2020, 8:08 PM Jim Brown wrote: > On 9/11/2020 1:48 PM, Ed Pflueger wrote: > > What am I going to take to the outhouse to read? > > Back is WV where I grew up it was known as "the catalog department," > where the older (and less desirable ) catalogs served a function other > than reading. > > 73, Jim K9YC > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pvandyke1953 at gmail.com > From mike at mdodd.com Fri Sep 11 21:01:42 2020 From: mike at mdodd.com (Mike Dodd) Date: Fri, 11 Sep 2020 21:01:42 -0400 Subject: [Elecraft] K3S Fault 9? Message-ID: <5F5C1DF6.7070502@mdodd.com> Trying to work the WAE SSB contest this evening, my KPA500 and KAT500 showed high SWR. When I hit TUNE on the K3s the KAT tuned OK, but a couple of times the K3s displayed FAULT 9. I looked through the K3s docs, and I didn't find any reference to faults. Can someone point me in the right direction to track down this problem? Thanks. Mike N4CF From jh at hoffmaninv.com Fri Sep 11 23:23:04 2020 From: jh at hoffmaninv.com (W8JH) Date: Fri, 11 Sep 2020 20:23:04 -0700 (MST) Subject: [Elecraft] No Tx audio after WSJT upgrade Message-ID: <1599880984868-0.post@n2.nabble.com> I was working FT8 tonight and decided to upgrade from WSJT 2.0 to the latest 2.2. Now I have no audio on transmit. All other functions work. Decodes, band change etc. It puts the K3s in transmit but no audio. I have adjusted the Mic gain without effect. I double checked that WSJT has the K3s codec for transmit selected. Windoze shows it working as well. I?m totally stumped and wish I hadn?t upgraded now. Any ideas how to proceed ? 73, ----- 73, Joe, W8JH K3s, KPA 500, KAT 500 and KX3 happy user. -- Sent from: http://elecraft.365791.n2.nabble.com/ From nv4c.ian at gmail.com Sat Sep 12 07:20:56 2020 From: nv4c.ian at gmail.com (Ian Kahn, NV4C) Date: Sat, 12 Sep 2020 07:20:56 -0400 Subject: [Elecraft] No Tx audio after WSJT upgrade In-Reply-To: <1599880984868-0.post@n2.nabble.com> References: <1599880984868-0.post@n2.nabble.com> Message-ID: <1e39766a-7aa2-ced7-40f7-724416992be6@gmail.com> Joe, Check your WSJT-X settings and ensure you still have the correct sound card selected and that something didn't change your output target/radio selection. Also, if you're running Windows, make sure something else didn't change any of your sound card settings from what you had prior to upgrading WSJT-X. 73 de, Ian, NV4C On 9/11/20 11:23 PM, W8JH wrote: > I was working FT8 tonight and decided to upgrade from WSJT 2.0 to the latest > 2.2. > > Now I have no audio on transmit. All other functions work. Decodes, band > change etc. > > It puts the K3s in transmit but no audio. I have adjusted the Mic gain > without effect. > > I double checked that WSJT has the K3s codec for transmit selected. Windoze > shows it working as well. > > I?m totally stumped and wish I hadn?t upgraded now. Any ideas how to proceed > ? > > 73, > > > > ----- > 73, > > Joe, W8JH > > K3s, KPA 500, KAT 500 and KX3 happy user. > -- > 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 nv4c.ian at gmail.com From rwnewbould at comcast.net Sat Sep 12 10:22:48 2020 From: rwnewbould at comcast.net (Rich) Date: Sat, 12 Sep 2020 10:22:48 -0400 Subject: [Elecraft] No Tx audio after WSJT upgrade In-Reply-To: <1e39766a-7aa2-ced7-40f7-724416992be6@gmail.com> References: <1599880984868-0.post@n2.nabble.com> <1e39766a-7aa2-ced7-40f7-724416992be6@gmail.com> Message-ID: <26fcb332-a190-0961-6749-bcd933b897f0@comcast.net> WJST-X does a very poor job of loading the current sound devices from Windows when you run the program.?? It appears to load whatever existed in the Sound Panel when it was installed. So use caution that what you see in the WJST-X audio window vs. what actually exists in the Windows Sound Panel. To me it appears to be more of WJST-X issue that a Windows issue Maybe there is a way to fix this, but I do not know what it is. Rich On 9/12/2020 7:20 AM, Ian Kahn, NV4C wrote: > Joe, > > Check your WSJT-X settings and ensure you still have the correct sound > card selected and that something didn't change your output > target/radio selection. Also, if you're running Windows, make sure > something else didn't change any of your sound card settings from what > you had prior to upgrading WSJT-X. > > 73 de, > > Ian, NV4C > > On 9/11/20 11:23 PM, W8JH wrote: >> I was working FT8 tonight and decided to upgrade from WSJT 2.0 to the >> latest >> 2.2. >> >> Now I have no audio on transmit. All other functions work. Decodes, band >> change etc. >> >> It puts the K3s in transmit but no audio. I have adjusted the Mic gain >> without effect. >> >> I double checked that WSJT has the K3s codec for transmit selected.? >> Windoze >> shows it working as well. >> >> I?m totally stumped and wish I hadn?t upgraded now. Any ideas how to >> proceed >> ? >> >> 73, >> >> >> >> ----- >> 73, >> >> Joe, W8JH >> >> K3s, KPA 500, KAT 500 and? KX3 happy user. >> -- >> 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 nv4c.ian at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rwnewbould at comcast.net From john at t6ee.com Sat Sep 12 10:45:10 2020 From: john at t6ee.com (John Kountz) Date: Sat, 12 Sep 2020 14:45:10 +0000 Subject: [Elecraft] Subtractive noise reduction Message-ID: Folks, This technique is integral to almost any disc record restoration software. It is used most often to remove scratches and related damage from disc recordings. Basically it consists of sampling the unrecorded lead in or 'quiet' interludes on the disc to provide a spectral profile of the noise to be dealt with, inverting that profile using it as a 'look ahead' filter through which subsequent audio engraved on the disc is passed. It is entirely conceivable that a similar technique could apply dynamically to material off the air proceeding the incoming 'signal' and applied as that 'signal' is received. Just another subroutine. 73, John Kountz WO1S, T6EE From arnett.drew at gmail.com Sat Sep 12 11:25:11 2020 From: arnett.drew at gmail.com (Drew Arnett) Date: Sat, 12 Sep 2020 15:25:11 +0000 Subject: [Elecraft] KX-3 TX current draw? In-Reply-To: References: <00BCAF91-A1CB-4752-B000-D71F8CE1C84E@gmail.com> Message-ID: Just to follow up. When I talked to support, they recommended sending in for service. After getting the rig back, I've only used it for IF at 100 mW on 50 MHz with transverter. And had a weird loud audio buzz problem. See separate email describing that. Have reported to Elecraft; still waiting for a response. Assuming the buzz problem is unrelated, here's a set of new measurements made this morning to show post repair performance for TX. ATU bypassed. Bench DC supply. Excellent dummy load. No coax, just a couple of coax adapters between rig and dummy load. 14 MHz @ 1 W setting 13.6 V RX (per KX3) 13.4 V TX (per KX3) 0.660 A TX (per KX3) VSWR 1.0 (per KX3) 28 MHz @ 1 W setting 13.6 V RX 13.4 V TX 0.765 A TX VSWR 1.0 50 MHz @ 1 W setting 13.6 V RX 13.2 V TX 1.040 A TX VSWR 1.5 50 MHz @ 4 W setting 13.6 V RX 13.0 V TX 1.710 A TX VSWR 1.6 That looks MUCH better. Efficiency on 50 MHz @ 4 W is > 18% and on par with the one other reported measurement. Huge thanks to Elecraft for getting the repair done before my next major contesting event, the first weekend of the 10 GHz and Up. (Hmm. Some HF contesting coming up soon. Amazing how many different kinds of fun you can have with a KX3!) I am a bit disappointed with the SWR meter on 50 MHz. Makes me wonder how to operate safely on 50 MHz without an external meter or when using the internal ATU. FYI if anyone else runs into this issue, the repair report: Repair(s) performed: Replaced Q6-Q7 (E850047) Current draw at 2.90 amps or below is acceptable. - Updates performed: Control panel: Updated firmware. Updated Q9 (part change) RF Board: Replaced C1U and C1P (value change) Best regards, Drew n7da On Sat, May 16, 2020 at 5:25 PM Drew Arnett wrote: > > To follow up on Victor's point, did some more measurements this morning. > > Setup: > KX-3 minimal adapters to 40 dB directional coupler to load > terminated unused port of coupler > measured port through 3 ft patch to Kanga US AD8307 RF power meter > > I have good calibration data for the power meter, but for the purpose > at hand, I won't correct the meter readings. 60 on the scale is about > -20 dBm. Every 10 on the scale is actually 10.7 dB. Good enough. > > Internal tuner bypassed. > > Measurements: > > Note: RX current in RX was between about .15 and .19 A for all 3 bands. > > 14 MHz @ 1 W setting > 13.7 V RX (per KX3) > 13.4 V TX (per KX3) > 1.15 A TX (per KX3) > VSWR 1.3 (per KX3) > FWD 67 (on power meter display, very close to expected) > REV 30 (on power meter display) > --> return loss approx 37 dB > > 28 MHz @ 1 W setting > 13.7 V RX > 13.4 V TX > 1.15 A TX > 1.3 VSWR > FWD 67 > REV 30 > --> return loss approx 37 dB > > 50 MHz @ 1 W setting > 13.7 V RX > 12.9 V TX > 2.9 A TX > 1.6 VSWR > FWD 71 > REV 35 > --> return loss approx 36 dB > > Hmm. So, I'm seeing 3% or less efficiency. Only one respondent on my > query about TX current draw, and he was getting 15%+ efficiency. No > wonder my PA temp shoots up. > > Thanks, > > Drew > n7da > > On Sat, May 9, 2020 at 11:25 AM Drew Arnett wrote: > > > > Good point, Victor. And why I included that SWR reading. Other bands > > read fine. I have high confidence in the load and adapter (tried > > swapping both just in case). I could measure the load and adapter the > > next time I'm in the lab at work if I want to be absolutely thorough, > > but it is a microwave load and just adapting from BNC to N (no coax). > > > > SWR looks fine on other bands. > > > > Thanks, > > > > Drew > > n7da > > > > On Sat, May 9, 2020 at 4:57 AM Victor Rosenthal wrote: > > > > > > I think 1.6:1 is high for that kind of dummy load, if it's in good shape. Should be close to 1:1. > > > Anyway, you can't really say there is a problem unless you have a better match. Current draw is sensitive to mismatch. > > > -- > > > Vic > > > > > > On May 9, 2020 2:32:15 AM GMT+03:00, Drew Arnett wrote: > > >> > > >> Walter, > > >> > > >> 50 MHz TX constant 4 W carrier measures 13.53 V on DMM (outside the DC > > >> power plug), 13.3 V on KX3 meter, 2.9 A on KX3 meter and 1.6 to 1 VSWR > > >> on KX3 meter. Microwave dummy load with BNC to N adapter. > > >> > > >> I didn't measure all of this when the rig was new, so have no baseline > > >> to know what is normal. :-( > > >> > > >> Thanks, > > >> > > >> Drew > > >> n7da > > >> > > >> On Fri, May 8, 2020 at 11:19 PM Drew Arnett wrote: > > >>> > > >>> > > >>> What do you see for current draw on the KX-3? Manual says 1 to 2 A typical. > > >>> > > >>> I'm seeing 3 A at less than full power on one band. Yikes! Makes me > > >>> wonder if the repair shop is open? Elecraft website says hunkered > > >>> down and mostly work from home. > > >>> > > >>> Thanks and best regards, > > >>> > > >>> Drew > > >>> n7da > > >> > > >> ________________________________ > > >> Elecraft mailing list > > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > > >> Help: http://mailman.qth.net/mmfaq.htm > > >> Post: mailto:Elecraft at mailman.qth.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 arnett.drew at gmail.com Sat Sep 12 11:48:38 2020 From: arnett.drew at gmail.com (Drew Arnett) Date: Sat, 12 Sep 2020 15:48:38 +0000 Subject: [Elecraft] KX3 SWR meter accuracy on 50 MHz? Message-ID: After getting my KX3 back from repair (before my next planned contest operation, thanks!), I ran some measurements to both see how great the repairs were and to get a new baseline for future measurements. TX efficiency problem was gone. However, I'm left to wonder about the accuracy of the internal SWR meter for 50 MHz. Using a microwave dummy load of adequate power rating and just a coaxial adapter, I measured the following: 14 MHz @ 1 W setting VSWR 1.0 to 1 (per KX3) 28 MHz @ 1 W setting VSWR 1.0 to 1 50 MHz @ 1 W setting VSWR 1.5 to 1 50 MHz @ 4 W setting VSWR 1.6 to 1 Not horrible. Not great. It's fine if it's not as accurate on 50 MHz. I just want to know if this is normal. Has anyone else looked at that and can share what they see? Thanks and best regards, Drew n7da From arnett.drew at gmail.com Sat Sep 12 11:51:52 2020 From: arnett.drew at gmail.com (Drew Arnett) Date: Sat, 12 Sep 2020 15:51:52 +0000 Subject: [Elecraft] KX3 buzz if power up on transverter band In-Reply-To: References: Message-ID: Anybody have a chance to try this? Would be useful to know if someone else cannot. Would be equally useful to know if someone can. Still waiting to hear back from Elecraft. Thanks, Drew n7da On Fri, Aug 21, 2020 at 3:22 PM Drew Arnett wrote: > > Oscilloscope "screenshot" of the offending waveform: > > https://drive.google.com/drive/folders/1-g9Met098lhncAcMtAAOvxWFDjf0NU_w?usp=sharing > > Can anyone try to reproduce this to rule out or confirm my suspicion > it might be caused by firmware bug? > > You can imagine how fast I knocked my headphones off! :-O :-) > > Thanks and best regards, > > Drew > n7da > > On Wed, Aug 19, 2020 at 2:49 PM Drew Arnett wrote: > > > > Hi, > > > > Weird problem. Anyone else try this and do or don't see this? > > > > Just got my KX3 back from repair. This included an upgrade to the > > latest firmware. (Makes sense. Requirement for production test. I > > hadn't upgraded to the very latest, because I had no need for the > > latest improvements.) > > > > Set the radio back up for 10368 to 50 MHz transverter use on XVTR1 > > band. Now, if I power up the radio when it was shut down on the XVTR > > band, there is a crazy loud buzz on the audio output (and > > corresponding response of the S meter.) If I switch to any other > > non-XVTR band and then power up, no problem even if switching then to > > the XVTR band. > > > > FW is now 2.90/1.52I got the radio back just before the 10 GHz > > contest, so only made minimal changes to settings from the cleared > > state it came back in. Changes made: > > AFX mode off (was delay) > > ATU bypass (can't remember if it came back this way or not. XVTR is > > good 50 ohm load.) > > BAT CHG off (was not inst) > > BKLIGHT off (was on) > > MIC BIAS off (I think came back on; used dynamic mic during contest) > > MIC BTN Ptt (was up/down) > > TX DLY 10 (was 5. abundance of caution as 5 is more than enough for > > the 10 GHz rig I'm running) > > XV1 on > > XV1 RF 10368 > > XV1 IF 50 > > XV1 PWR 0.1 > > XV1 OFS (set in field) 1.20 > > XV1 ADR trn1 > > set the clock. :-) > > turned on the hidden in the menus CW-in-SSB feature > > > > I know I turned on or off a couple of front panel things as they left > > it. Don't remember. Stuff like vox, pre, nr or nb. Definitely > > adjusted mic gain and compression and keyer speed. :-) > > > > RX ISO changed to on during the contest, but problem occurs with it on or off > > > > What does the headphone jack output look like? Power up in bad state. > > Set volume control to 20. With no load other than 10X scope probe, > > the AC component is identical for left and right. Tip has about 0 V > > DC offset. Ring has about + 0.5 V DC offset. AC component looks like > > a the differential of a square wave. Peak to peak amplitude is 220 > > mV. (This follows volume control. Didn't check to see if DC offset > > follows volume control.) 12.2 millisecond repetition rate for > > positive and negative pulses. Negative pulse leads positive pulse by > > 2.2 ms, so 10 ms from positive pulse to negative. Very small AC > > ripple on that with a period of about 0.4 ms. > > > > I was very happy to find a sequence to avoid the problem (as described > > above.) To trouble shoot, I tried to rule out a number of things. > > Unplugged ALL cables from the KX3. That did not resolve. Tried > > external 12.4 V (battery on hand) and internal battery removed. Tried > > internal battery (charged) and nothing plugged in. No dice. > > > > Given that it's just back from repair, that sequencing gets it in a > > bad state, FW was upgraded to a new version, and audio path goes > > through FW, seems reasonable to ask if this is a known FW issue or if > > someone can try to reproduce this. > > > > Hoping to figure this out before the Sept VHF, the Sept 10 GHz contest > > weekend, and of course the HF contests coming up later this fall. :-) > > With my workaround, I was able to participate in the Aug 10 GHz > > weekend without interruption. I ran a W1GHZ XVTR barefoot (+5 dBm > > Pout) for best DX of 379 km. How much fun can you have with a KX3? > > Lots! :-) > > > > Thanks and best regards, > > > > Drew > > n7da From k7voradio at gmail.com Sat Sep 12 13:45:32 2020 From: k7voradio at gmail.com (Robert Sands) Date: Sat, 12 Sep 2020 10:45:32 -0700 Subject: [Elecraft] Fwd: K4 Predistortion planned? timetable? In-Reply-To: References: Message-ID: Is this topic allowed? Original post did not come through. ---------- Forwarded message --------- From: Robert Sands Date: Thu, Sep 10, 2020 at 10:57 AM Subject: K4 Predistortion planned? timetable? To: Elecraft Discussion List Is the processor in the K4 fast or big enough to handle the demand of the anticipated predistortion algorithm? Is this predistortion algorithm a proprietary matter or is it constructed de novo from existing knowledge? Any information on what is planned would be appreciated. Have not seen much other than "later". Big attraction to me. Robert K7VO From wb4ooa at gmail.com Sat Sep 12 14:00:36 2020 From: wb4ooa at gmail.com (Ron Durie) Date: Sat, 12 Sep 2020 14:00:36 -0400 Subject: [Elecraft] FS K3S with P3 SOLD Message-ID: <002601d6892e$9e7b4cf0$db71e6d0$@gmail.com> THE K3S AND P3 are sold. Thanks. 73's Ron Durie WB4OOA Elecraft K-Line 704-843-3681 WB4OOA at gmail.com -----Original Message----- From: Ron Durie [mailto:WB4OOA at gmail.com] Sent: Friday, September 11, 2020 12:29 PM To: 'elecraft at mailman.qth.net' Subject: FS K3S with P3 My K3S SN:10684 Has every option installed, except the 2meter module. It has also been upgraded by Elecraft for improved Transmit IMD. Original owner; non-smoker; Latest Firmware; and in like new condition. No scratches or even smudges. Even the knobs are new. Includes connecting cables; manuals; and the original Elecraft K3S shipping box with foam support. A picture of this rig is on my QRZ page. This is the 4th K3 series that I have built. Also, my P3 SN:2710 With SVGA option & Wattmeter option. Original owner and also in like new condition. In my opinion this is the most accurate spectrum monitor on the market today. All Connector Pins (on both units) have been treated with Caig DeOxit solution for reliable performance. Total package price: $3395.00 shipped to CONUS. My Email: WB4OOA at gmail.com Ron Durie WB4OOA From nr4c at widomaker.com Sat Sep 12 15:13:45 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 12 Sep 2020 15:13:45 -0400 Subject: [Elecraft] KX3 SWR meter accuracy on 50 MHz? In-Reply-To: References: Message-ID: Well, it depends on the ?Dummy? load. Have you swept the load with a good spectrum analyzer or VNA? It may not be 50 ohms at 50 MHz Sent from my iPhone ...nr4c. bill > On Sep 12, 2020, at 11:51 AM, Drew Arnett wrote: > > ?After getting my KX3 back from repair (before my next planned contest > operation, thanks!), I ran some measurements to both see how great the > repairs were and to get a new baseline for future measurements. TX > efficiency problem was gone. > > However, I'm left to wonder about the accuracy of the internal SWR > meter for 50 MHz. Using a microwave dummy load of adequate power > rating and just a coaxial adapter, I measured the following: > > 14 MHz @ 1 W setting > VSWR 1.0 to 1 (per KX3) > > 28 MHz @ 1 W setting > VSWR 1.0 to 1 > > 50 MHz @ 1 W setting > VSWR 1.5 to 1 > > 50 MHz @ 4 W setting > VSWR 1.6 to 1 > > Not horrible. Not great. > > It's fine if it's not as accurate on 50 MHz. I just want to know if > this is normal. Has anyone else looked at that and can share what > they see? > > Thanks and best regards, > > Drew > n7da > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 radio at disseminator.net Sat Sep 12 15:33:26 2020 From: radio at disseminator.net (Dave Erickson) Date: Sat, 12 Sep 2020 14:33:26 -0500 Subject: [Elecraft] WTT: KX3 for K3 or K3S Message-ID: <9674ca2a-38f9-908c-b3f7-d8089482c92c@disseminator.net> Hey all, I have a mint condition KX3 with ALL options including the 2m module.Also has the Kx32 Ultimate Heatsink KX3 which allows for continuous 15W transmit. Serial is 111** What I want is a K3/K3S with tuner and 100w PA, the other options are flexible. Let me know what you've got and maybe we can work something out. I could add a few bucks for the right deal. Thanks, maybe contact me directly to keep the list clean. -- Dave Erickson k0dom 73 From rdomareck at yahoo.com Sat Sep 12 17:04:29 2020 From: rdomareck at yahoo.com (Russell Domareck) Date: Sat, 12 Sep 2020 21:04:29 +0000 (UTC) Subject: [Elecraft] K1ZTE - KAT500 References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> Message-ID: <597729536.3501617.1599944669783@mail.yahoo.com> I own a KAT500 and KPA500 that I use with an IC 7300. ?When in CW mode, the KAT500 can be activated by keying the IC 7300, no problem. ?This allows the KAT500 to find a match with low power while the KPA500 is in standby mode. ?In SSB mode, there is still the need to activate the KAT500 for the match, however, neither keying the mike nor speaking into the mike activates the KAT500. ?A press of the transmit button in the IC 7300 also did not activate the KAT500. ?I find that I have to first switch to CW mode for the activation before switching to SSB so that the KAT500 is all set for KPA500 operation. ?Is what I am doing the only way to do this? ?I have read related posts on this subject but they did not satisfactorily answer my question. From dick at elecraft.com Sat Sep 12 17:18:30 2020 From: dick at elecraft.com (Dick Dievendorff) Date: Sat, 12 Sep 2020 14:18:30 -0700 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <597729536.3501617.1599944669783@mail.yahoo.com> References: <597729536.3501617.1599944669783@mail.yahoo.com> Message-ID: <76526A9C-1B0C-4319-9FA3-3391AED9710F@elecraft.com> Page 13 of the KAT500 owners manual describes an AH-4 connection between Icom radios and the KAT500. Does this work for you? 73 de Dick, K6KR > On Sep 12, 2020, at 14:06, Russell Domareck via Elecraft wrote: > > ?I own a KAT500 and KPA500 that I use with an IC 7300. When in CW mode, the KAT500 can be activated by keying the IC 7300, no problem. This allows the KAT500 to find a match with low power while the KPA500 is in standby mode. In SSB mode, there is still the need to activate the KAT500 for the match, however, neither keying the mike nor speaking into the mike activates the KAT500. A press of the transmit button in the IC 7300 also did not activate the KAT500. I find that I have to first switch to CW mode for the activation before switching to SSB so that the KAT500 is all set for KPA500 operation. Is what I am doing the only way to do this? I have read related posts on this subject but they did not satisfactorily answer my question. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 donwilh at embarqmail.com Sat Sep 12 17:21:23 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 12 Sep 2020 17:21:23 -0400 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <597729536.3501617.1599944669783@mail.yahoo.com> References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> <597729536.3501617.1599944669783@mail.yahoo.com> Message-ID: <8885865c-be3d-d6a3-ae49-bbdbea265d0b@embarqmail.com> It takes 20+ watts to tune the KAT500. I have no idea of how to set up the IC7300 to do that when in SSB mode. You will have to ask on the Icom forums. 73, Don W3FPR On 9/12/2020 5:04 PM, Russell Domareck via Elecraft wrote: > I own a KAT500 and KPA500 that I use with an IC 7300. ?When in CW mode, the KAT500 can be activated by keying the IC 7300, no problem. ?This allows the KAT500 to find a match with low power while the KPA500 is in standby mode. ?In SSB mode, there is still the need to activate the KAT500 for the match, however, neither keying the mike nor speaking into the mike activates the KAT500. ?A press of the transmit button in the IC 7300 also did not activate the KAT500. ?I find that I have to first switch to CW mode for the activation before switching to SSB so that the KAT500 is all set for KPA500 operation. ?Is what I am doing the only way to do this? ?I have read related posts on this subject but they did not satisfactorily answer my question. From k9qjs at icloud.com Sat Sep 12 17:53:50 2020 From: k9qjs at icloud.com (JK Hooper) Date: Sat, 12 Sep 2020 14:53:50 -0700 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <76526A9C-1B0C-4319-9FA3-3391AED9710F@elecraft.com> References: <597729536.3501617.1599944669783@mail.yahoo.com> <76526A9C-1B0C-4319-9FA3-3391AED9710F@elecraft.com> Message-ID: <55A242E4-CB44-44F4-9392-DCA70DA502F0@icloud.com> Russell, I have the same experience with my 7300 exactly, needing to shift to CW mode to match the KAT500. It?s at the point where it?s just what I do. Dick, I have the cable for connecting the 7300 to an external tuner, such as the AH-4, and I found that it did work fine for initiating a tune. But what I want is to use the stored settings in the KAT500 rather than initiate a tune each time, so I have KAT500 in ?MAN? setting. The CW key transmission is what I need to use to activate the right pre-loaded setting for the frequency in the KAT500. I did find that the 12 volt connector part of the I-think-it-was LDG cable was so sloppy that it would not stay in the KAT500. So I just don?t use it at all. 73 Hoop K9QJS On Sep 12, 2020, at 2:18 PM, Dick Dievendorff wrote: Page 13 of the KAT500 owners manual describes an AH-4 connection between Icom radios and the KAT500. Does this work for you? 73 de Dick, K6KR > On Sep 12, 2020, at 14:06, Russell Domareck via Elecraft wrote: > > ?I own a KAT500 and KPA500 that I use with an IC 7300. When in CW mode, the KAT500 can be activated by keying the IC 7300, no problem. This allows the KAT500 to find a match with low power while the KPA500 is in standby mode. In SSB mode, there is still the need to activate the KAT500 for the match, however, neither keying the mike nor speaking into the mike activates the KAT500. A press of the transmit button in the IC 7300 also did not activate the KAT500. I find that I have to first switch to CW mode for the activation before switching to SSB so that the KAT500 is all set for KPA500 operation. Is what I am doing the only way to do this? I have read related posts on this subject but they did not satisfactorily answer my question. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 k9qjs at icloud.com From w4sc at windstream.net Sat Sep 12 18:06:37 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 12 Sep 2020 18:06:37 -0400 Subject: [Elecraft] K1ZTE - KAT500 Message-ID: There may be a clue here https://kg3v.com/2019/03/03/cant-use-tune-button-on-ic-7300-with-kat-500-tuner/ Sent from Mail for Windows 10 From k9ztv at socket.net Sat Sep 12 18:10:17 2020 From: k9ztv at socket.net (KENT TRIMBLE) Date: Sat, 12 Sep 2020 17:10:17 -0500 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <597729536.3501617.1599944669783@mail.yahoo.com> References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> <597729536.3501617.1599944669783@mail.yahoo.com> Message-ID: <2fbba828-34eb-aa53-b3b3-f59efad4e3b0@socket.net> With nearly all modern transceivers nowadays, the trick is to set the power on AM to 25 watts (which is the most you should ever run a 100 watt transceiver on AM), and use AM to tune your KAT500.? This puts a carrier into the tuner at an acceptable low power. You can tune it in CW mode, but that requires turning the transceiver's power output down, and then turning it back up.? By using AM the power is already set at 25 and doesn't need further adjusting.? Some ops like to tune in FM mode, but I prefer AM. When the KAT500 has finished its routine, switch back to SSB at 100 watts (or whatever you want). 73, Kent? K9ZTV On 9/12/2020 4:04 PM, Russell Domareck via Elecraft wrote: > Is what I am doing the only way to do this? ?I have read related posts on this subject but they did not satisfactorily answer my question. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k9ztv at socket.net > From g4gnx at g4gnx.com Sat Sep 12 18:16:13 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Sat, 12 Sep 2020 22:16:13 +0000 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <597729536.3501617.1599944669783@mail.yahoo.com> References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> <597729536.3501617.1599944669783@mail.yahoo.com> Message-ID: Although it's preferable to have at least 20W to tune, the good book says that anything between 7 and 100 watts is OK. I guess you're providing that in CW mode. Have you 'trained' the KAT500 for the entire band/s you want to use? If you do that in Auto mode, then switch to Manual mode, the KAT500 should see RF from the IC-7300 and switch to the 'trained' and matched frequency, but you will have to speak into the mic to produce some RF. Pressing the PTT or Transmit button won't do that, unless you have a really high background noise which the mic picks up. Are you sure that the IC-7300 internal tuner is switched out? I haven't messed with our club's IC-7300 for some time (pandemic issues) but I previously found that the internal tuner was not very good and would not match anything over 2:1 and even with it switched out the rig would drastically cut its power back if it thought the SWR was high. It may be a chicken and egg situation where the KAT500 has not yet matched, so the IC-7300 sees that mismatch and won't produce enough power to make the KAT500 activate. You would probably find it would work as you wish if you setup an AH-4 cable between the rig and tuner. Page 15 of the KAT500 shows how to do this. 73, Alan. G4GNX ------ Original Message ------ From: "Russell Domareck via Elecraft" To: "elecraft at mailman.qth.net" Sent: 12/09/2020 22:04:29 Subject: [Elecraft] K1ZTE - KAT500 >I own a KAT500 and KPA500 that I use with an IC 7300. When in CW mode, the KAT500 can be activated by keying the IC 7300, no problem. This allows the KAT500 to find a match with low power while the KPA500 is in standby mode. In SSB mode, there is still the need to activate the KAT500 for the match, however, neither keying the mike nor speaking into the mike activates the KAT500. A press of the transmit button in the IC 7300 also did not activate the KAT500. I find that I have to first switch to CW mode for the activation before switching to SSB so that the KAT500 is all set for KPA500 operation. Is what I am doing the only way to do this? I have read related posts on this subject but they did not satisfactorily answer my question. > From w3tb.ted at gmail.com Sat Sep 12 18:22:48 2020 From: w3tb.ted at gmail.com (Ted Edwards W3TB) Date: Sat, 12 Sep 2020 17:22:48 -0500 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <2fbba828-34eb-aa53-b3b3-f59efad4e3b0@socket.net> References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> <597729536.3501617.1599944669783@mail.yahoo.com> <2fbba828-34eb-aa53-b3b3-f59efad4e3b0@socket.net> Message-ID: Related question: Should the KAT-500 hold memorized settings after shutting down to ready for use another time? On Sat, Sep 12, 2020 at 17:11 KENT TRIMBLE wrote: > With nearly all modern transceivers nowadays, the trick is to set the > > power on AM to 25 watts (which is the most you should ever run a 100 > > watt transceiver on AM), and use AM to tune your KAT500. This puts a > > carrier into the tuner at an acceptable low power. > > > > You can tune it in CW mode, but that requires turning the transceiver's > > power output down, and then turning it back up. By using AM the power > > is already set at 25 and doesn't need further adjusting. Some ops like > > to tune in FM mode, but I prefer AM. > > > > When the KAT500 has finished its routine, switch back to SSB at 100 > > watts (or whatever you want). > > > > 73, > > > > Kent K9ZTV > > > > > > > > On 9/12/2020 4:04 PM, Russell Domareck via Elecraft wrote: > > > Is what I am doing the only way to do this? I have read related posts > on this subject but they did not satisfactorily answer my question. > > > ______________________________________________________________ > > > Elecraft mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: http://mailman.qth.net/mmfaq.htm > > > Post: mailto:Elecraft at mailman.qth.net > > > > > > This list hosted by: http://www.qsl.net > > > Please help support this email list: http://www.qsl.net/donate.html > > > Message delivered to k9ztv at socket.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 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 Sat Sep 12 18:31:39 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sat, 12 Sep 2020 15:31:39 -0700 Subject: [Elecraft] [K4] Shipping?? In-Reply-To: References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> <97ab6d88-0480-23c7-a5d7-3c9c7bcbff88@audiosystemsgroup.com> Message-ID: <35be8f89-407a-b361-fdc9-d78b52867f0f@audiosystemsgroup.com> On 9/11/2020 8:30 PM, Augie "Gus" Hansen wrote: > Have you been able to get home yet? What's the status of your home and > antennas? Got back a few days ago, only damage is to floor under refrigerator that had been without power for 3 wks. House, shack, antennas all fine. No power, water, or internet, so we're in a rental townhouse for a while. 73, Jim K9YC From g4gnx at g4gnx.com Sat Sep 12 18:44:28 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Sat, 12 Sep 2020 22:44:28 +0000 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> <597729536.3501617.1599944669783@mail.yahoo.com> <2fbba828-34eb-aa53-b3b3-f59efad4e3b0@socket.net> Message-ID: Yes. You would normally 'train' the KAT500 in segments over each band for each antenna. This is done in Auto mode. The recommended segments are listed in the back of the KAT500 manual. Each match setting is stored in its own memory. You would then leave the KAT500 in Manual mode and each time you transmit, it should detect the band/frequency and switch to the appropriate memory. Memory settings are retained after power down. 73, Alan. G4GNX ------ Original Message ------ From: "Ted Edwards W3TB" To: "KENT TRIMBLE" Cc: "elecraft at mailman.qth.net" Sent: 12/09/2020 23:22:48 Subject: Re: [Elecraft] K1ZTE - KAT500 >Related question: Should the KAT-500 hold memorized settings after >shutting down to ready for use another time? > > From g4gnx at g4gnx.com Sat Sep 12 18:45:58 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Sat, 12 Sep 2020 22:45:58 +0000 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: References: Message-ID: >From what the OP wrote, I don't think he's using the Tune button to activate the KAT500. A 3rd party sells a cable that plugs into the AH-4 socket on the back of the IC-7300, which allows you to make the IC-7300 enter Tune mode, by pressing the simple button on the end of the cable. It would of course be possible to make your own. 73, Alan. G4GNX ------ Original Message ------ From: "w4sc" To: "elecraft at mailman.qth.net" Sent: 12/09/2020 23:06:37 Subject: Re: [Elecraft] K1ZTE - KAT500 >There may be a clue here > >https://kg3v.com/2019/03/03/cant-use-tune-button-on-ic-7300-with-kat-500-tuner/ > > > > From k9ztv at socket.net Sat Sep 12 19:03:34 2020 From: k9ztv at socket.net (KENT TRIMBLE) Date: Sat, 12 Sep 2020 18:03:34 -0500 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> <597729536.3501617.1599944669783@mail.yahoo.com> Message-ID: Alan is right, but it depends on which "good book" one is consulting! We have to be careful about transceiver power levels when tuning an external AMU, for the sake of the /transceiver /as well as the AMU. Your AMU may be able to tolerate 100 watts during the tuning process, but your transceiver may not.? Unless the transceiver automatically folds back its output in the presence of high SWR levels, one risks damaging the transceiver's PA transistors.? While many modern rigs do so, others, especially older rigs often used by new licensees, do not. For example, when seeing an SWR above 3:1, my FT-991A reduces its CW output from 100 to 10 watts while at the same time flashing "HIGH SWR" in red letters.? The rig may be successfully protecting itself, but why risk stressing components if it's not necessary?? That's why I prefer switching the transceiver to AM at 25 watts when tuning an external AMU. 73, Kent? K9ZTV On 9/12/2020 5:16 PM, Alan - G4GNX wrote: > Although it's preferable to have at least 20W to tune, the good book > says that anything between 7 and 100 watts is OK. From g4gnx at g4gnx.com Sat Sep 12 19:20:06 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Sat, 12 Sep 2020 23:20:06 +0000 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> <597729536.3501617.1599944669783@mail.yahoo.com> Message-ID: I was quoting from the KAT500 owners manual and only the min and max power that the KAT500 will tolerate. As I just posted, there's a cable made which allows you to use the external tuner function of the IC-7300, forcing it to output low power for tuning, but without connecting the IC-7300 to the tuner, except for the RF connection. That way you know that the IC-7300 is only outputting its intended tuning power and will protect itself. 73, Alan. G4GNX ------ Original Message ------ From: "KENT TRIMBLE" To: "elecraft at mailman.qth.net" Sent: 13/09/2020 00:03:34 Subject: Re: [Elecraft] K1ZTE - KAT500 >Alan is right, but it depends on which "good book" one is consulting! > >We have to be careful about transceiver power levels when tuning an external AMU, for the sake of the /transceiver /as well as the AMU. > >Your AMU may be able to tolerate 100 watts during the tuning process, but your transceiver may not. Unless the transceiver automatically folds back its output in the presence of high SWR levels, one risks damaging the transceiver's PA transistors. While many modern rigs do so, others, especially older rigs often used by new licensees, do not. > >For example, when seeing an SWR above 3:1, my FT-991A reduces its CW output from 100 to 10 watts while at the same time flashing "HIGH SWR" in red letters. The rig may be successfully protecting itself, but why risk stressing components if it's not necessary? That's why I prefer switching the transceiver to AM at 25 watts when tuning an external AMU. > >73, > >Kent K9ZTV > > > >On 9/12/2020 5:16 PM, Alan - G4GNX wrote: >>Although it's preferable to have at least 20W to tune, the good book says that anything between 7 and 100 watts is OK. > >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.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 k9ztv at socket.net Sat Sep 12 19:28:43 2020 From: k9ztv at socket.net (KENT TRIMBLE) Date: Sat, 12 Sep 2020 18:28:43 -0500 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: References: <597729536.3501617.1599944669783.ref@mail.yahoo.com> <597729536.3501617.1599944669783@mail.yahoo.com> Message-ID: <2bd293a8-a440-a8fa-9780-a4c33e5d1b4e@socket.net> A further consideration has to do with what kind of AMU you are using, whether electronic or mechanical (for want of a better description). Once a match is memorized, electronic AMUs set their solutions nearly instantly.? High SWR levels exist only for milliseconds (if that). But mechanical AMUs (whether automatic or manual) require TIME in order for the capacitor(s) and inductor to find their proper matching positions.? Even when a match has been previously memorized, it may take several seconds for the inductor wheel to traverse the roller coil and the capacitor(s) to rotate. That's why one needs to pay attention to the SWR levels impacting both the AMU and the transceiver. 73, Kent? K9ZTV On 9/12/2020 6:03 PM, KENT TRIMBLE wrote: > Alan is right, but it depends on which "good book" one is consulting! > > We have to be careful about transceiver power levels when tuning an > external AMU, for the sake of the /transceiver /as well as the AMU. > > Your AMU may be able to tolerate 100 watts during the tuning process, > but your transceiver may not.? Unless the transceiver automatically > folds back its output in the presence of high SWR levels, one risks > damaging the transceiver's PA transistors. While many modern rigs do > so, others, especially older rigs often used by new licensees, do not. > > For example, when seeing an SWR above 3:1, my FT-991A reduces its CW > output from 100 to 10 watts while at the same time flashing "HIGH SWR" > in red letters.? The rig may be successfully protecting itself, but > why risk stressing components if it's not necessary? That's why I > prefer switching the transceiver to AM at 25 watts when tuning an > external AMU. > > 73, > > Kent? K9ZTV > > > > On 9/12/2020 5:16 PM, Alan - G4GNX wrote: >> Although it's preferable to have at least 20W to tune, the good book >> says that anything between 7 and 100 watts is OK. > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k9ztv at socket.net From w4sc at windstream.net Sat Sep 12 19:38:08 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 12 Sep 2020 19:38:08 -0400 Subject: [Elecraft] K1ZTE - KAT500 Message-ID: <58.8F.25755.0EB5D5F5@smtp01.aqua.bos.sync.lan> I have the KAT/KPA500 setup with the K3. It works great when trained, tracking VFO. I had only one antenna available per band at the time using the setup. Currently the ?shack? is undergoing a move and renovation. I will be back on with possibly as many as 3 antennas available on a single band. I have looked for answer to the following question. Is the training saved per-BAND/ANTENNA combination tuning solution?.. possibly resulting in 3 solutions per band. If there is only one solution there are implications in switching to a different antenna in a band with multiple antenna choices. In my case the future may hold a vertical, beam, and horizontal loop on 40M. Ben W4SC Sent from Mail for Windows 10 From g4gnx at g4gnx.com Sat Sep 12 19:43:41 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Sat, 12 Sep 2020 23:43:41 +0000 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <58.8F.25755.0EB5D5F5@smtp01.aqua.bos.sync.lan> References: <58.8F.25755.0EB5D5F5@smtp01.aqua.bos.sync.lan> Message-ID: The KAT500 retains matched memories for each band/frequency per antenna. So yes, you have 3 solutions per band/frequency. It has quite a lot of memories. :-D 73, Alan. G4GNX ------ Original Message ------ From: "w4sc" To: "elecraft at mailman.qth.net" Sent: 13/09/2020 00:38:08 Subject: Re: [Elecraft] K1ZTE - KAT500 >I have the KAT/KPA500 setup with the K3. It works great when trained, tracking VFO. I had only one antenna available per band at the time using the setup. Currently the ?shack? is undergoing a move and renovation. > >I will be back on with possibly as many as 3 antennas available on a single band. I have looked for answer to the following question. > >Is the training saved per-BAND/ANTENNA combination tuning solution?.. possibly resulting in 3 solutions per band. If there is only one solution there are implications in switching to a different antenna in a band with multiple antenna choices. In my case the future may hold a vertical, beam, and horizontal loop on 40M. > >Ben W4SC > > From neilz at techie.com Sat Sep 12 19:57:14 2020 From: neilz at techie.com (Neil Zampella) Date: Sat, 12 Sep 2020 18:57:14 -0500 Subject: [Elecraft] No Tx audio after WSJT upgrade In-Reply-To: <26fcb332-a190-0961-6749-bcd933b897f0@comcast.net> References: <1599880984868-0.post@n2.nabble.com> <1e39766a-7aa2-ced7-40f7-724416992be6@gmail.com> <26fcb332-a190-0961-6749-bcd933b897f0@comcast.net> Message-ID: <7ed47012-fb1a-524f-d694-1222c31c4fa6@techie.com> Actually ... WSJT-X only uses what windows tells it is available.??? After Windows updates its been found that Windows will scramble the audio devices, especially if they are USB devices. What has been found to work is to RENAME the device you use in the Sound Control Panel.? Bring up the Sound Control Panel, find the USB adapter normally used for sound input to WSJT-X under Speakers and double click to open the properties.?? On the first tab you can rename it to what you want to use, such as WSJT-X Sound OUT.?? Do the same with the microphone device and rename to WSJT-X Sound IN. Click the OK button, and then close the Sound Control Panel.?? I'd do a restart to make sure that Windows has saved that info.?? Then open WSJT-X and select them on the Audio setting tab. Most of the users who have done this have not see the 'scrambled audio device' issue again. Neil, KN3ILZ On 9/12/2020 9:22 AM, Rich wrote: > WJST-X does a very poor job of loading the current sound devices from > Windows when you run the program.?? It appears to load whatever > existed in the Sound Panel when it was installed. > > So use caution that what you see in the WJST-X audio window vs. what > actually exists in the Windows Sound Panel. > > To me it appears to be more of WJST-X issue that a Windows issue > > Maybe there is a way to fix this, but I do not know what it is. > > Rich > > On 9/12/2020 7:20 AM, Ian Kahn, NV4C wrote: >> Joe, >> >> Check your WSJT-X settings and ensure you still have the correct >> sound card selected and that something didn't change your output >> target/radio selection. Also, if you're running Windows, make sure >> something else didn't change any of your sound card settings from >> what you had prior to upgrading WSJT-X. >> >> 73 de, >> >> Ian, NV4C >> >> On 9/11/20 11:23 PM, W8JH wrote: >>> I was working FT8 tonight and decided to upgrade from WSJT 2.0 to >>> the latest >>> 2.2. >>> >>> Now I have no audio on transmit. All other functions work. Decodes, >>> band >>> change etc. >>> >>> It puts the K3s in transmit but no audio. I have adjusted the Mic gain >>> without effect. >>> >>> I double checked that WSJT has the K3s codec for transmit selected.? >>> Windoze >>> shows it working as well. >>> >>> I?m totally stumped and wish I hadn?t upgraded now. Any ideas how to >>> proceed >>> ? >>> >>> 73, >>> >>> >>> >>> ----- >>> 73, >>> >>> Joe, W8JH >>> >>> K3s, KPA 500, KAT 500 and? KX3 happy user. >>> -- >>> 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 nv4c.ian at gmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to rwnewbould at comcast.net > From nr4c at widomaker.com Sat Sep 12 20:11:11 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 12 Sep 2020 20:11:11 -0400 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <597729536.3501617.1599944669783@mail.yahoo.com> References: <597729536.3501617.1599944669783@mail.yahoo.com> Message-ID: You need RF to cause the amp&ATU to know what band and freq you are using. Keying then mic on SSB won?t generate RF until you speak. CW, AM, FM or RTTY will generate RF when keying the mic (or tap the paddles in CW) and will generate the RF to tickle the Amp and ATU. Sent from my iPhone ...nr4c. bill > On Sep 12, 2020, at 5:06 PM, Russell Domareck via Elecraft wrote: > > ?I own a KAT500 and KPA500 that I use with an IC 7300. When in CW mode, the KAT500 can be activated by keying the IC 7300, no problem. This allows the KAT500 to find a match with low power while the KPA500 is in standby mode. In SSB mode, there is still the need to activate the KAT500 for the match, however, neither keying the mike nor speaking into the mike activates the KAT500. A press of the transmit button in the IC 7300 also did not activate the KAT500. I find that I have to first switch to CW mode for the activation before switching to SSB so that the KAT500 is all set for KPA500 operation. Is what I am doing the only way to do this? I have read related posts on this subject but they did not satisfactorily answer my question. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 Sep 12 20:13:41 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 12 Sep 2020 20:13:41 -0400 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: <76526A9C-1B0C-4319-9FA3-3391AED9710F@elecraft.com> References: <76526A9C-1B0C-4319-9FA3-3391AED9710F@elecraft.com> Message-ID: Yes but my experience with this always causes a ?tune? cycle. I have already taught my KAT500 my antennas so only need it to locate nearest saved solution. Sent from my iPhone ...nr4c. bill > On Sep 12, 2020, at 5:21 PM, Dick Dievendorff wrote: > > ?Page 13 of the KAT500 owners manual describes an AH-4 connection between Icom radios and the KAT500. > > Does this work for you? > > 73 de Dick, K6KR > > > >> On Sep 12, 2020, at 14:06, Russell Domareck via Elecraft wrote: >> >> ?I own a KAT500 and KPA500 that I use with an IC 7300. When in CW mode, the KAT500 can be activated by keying the IC 7300, no problem. This allows the KAT500 to find a match with low power while the KPA500 is in standby mode. In SSB mode, there is still the need to activate the KAT500 for the match, however, neither keying the mike nor speaking into the mike activates the KAT500. A press of the transmit button in the IC 7300 also did not activate the KAT500. I find that I have to first switch to CW mode for the activation before switching to SSB so that the KAT500 is all set for KPA500 operation. Is what I am doing the only way to do this? I have read related posts on this subject but they did not satisfactorily answer my question. >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 nr4c at widomaker.com From w3tb.ted at gmail.com Sat Sep 12 20:14:44 2020 From: w3tb.ted at gmail.com (Ted Edwards W3TB) Date: Sat, 12 Sep 2020 19:14:44 -0500 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: References: <58.8F.25755.0EB5D5F5@smtp01.aqua.bos.sync.lan> Message-ID: This is all very helpful. I have apparently been doing things wrong by bringing the Auto button to flash When setting frequencies and leaving the Auto button on to ?automatically? get me back to the settings later on. On Sat, Sep 12, 2020 at 18:44 Alan - G4GNX wrote: > The KAT500 retains matched memories for each band/frequency per antenna. > > So yes, you have 3 solutions per band/frequency. It has quite a lot of > > memories. :-D > > > > 73, > > > > Alan. G4GNX > > > > > > ------ Original Message ------ > > From: "w4sc" > > To: "elecraft at mailman.qth.net" > > Sent: 13/09/2020 00:38:08 > > Subject: Re: [Elecraft] K1ZTE - KAT500 > > > > >I have the KAT/KPA500 setup with the K3. It works great when trained, > tracking VFO. I had only one antenna available per band at the time using > the setup. Currently the ?shack? is undergoing a move and renovation. > > > > > >I will be back on with possibly as many as 3 antennas available on a > single band. I have looked for answer to the following question. > > > > > >Is the training saved per-BAND/ANTENNA combination tuning solution?.. > possibly resulting in 3 solutions per band. If there is only one solution > there are implications in switching to a different antenna in a band with > multiple antenna choices. In my case the future may hold a vertical, > beam, and horizontal loop on 40M. > > > > > >Ben W4SC > > > > > > > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 nr4c at widomaker.com Sat Sep 12 20:19:09 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 12 Sep 2020 20:19:09 -0400 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: References: Message-ID: <89F2A0B6-9F27-42D2-BD90-B2E68F1AD3E9@widomaker.com> Yes. Once stored they are there until replaced or cleared Sent from my iPhone ...nr4c. bill > On Sep 12, 2020, at 6:25 PM, Ted Edwards W3TB wrote: > > ?Related question: Should the KAT-500 hold memorized settings after > shutting down to ready for use another time? > >> On Sat, Sep 12, 2020 at 17:11 KENT TRIMBLE wrote: >> >> With nearly all modern transceivers nowadays, the trick is to set the >> >> power on AM to 25 watts (which is the most you should ever run a 100 >> >> watt transceiver on AM), and use AM to tune your KAT500. This puts a >> >> carrier into the tuner at an acceptable low power. >> >> >> >> You can tune it in CW mode, but that requires turning the transceiver's >> >> power output down, and then turning it back up. By using AM the power >> >> is already set at 25 and doesn't need further adjusting. Some ops like >> >> to tune in FM mode, but I prefer AM. >> >> >> >> When the KAT500 has finished its routine, switch back to SSB at 100 >> >> watts (or whatever you want). >> >> >> >> 73, >> >> >> >> Kent K9ZTV >> >> >> >> >> >> >> >>> On 9/12/2020 4:04 PM, Russell Domareck via Elecraft wrote: >>> >>> Is what I am doing the only way to do this? I have read related posts >> on this subject but they did not satisfactorily answer my question. >> >>> ______________________________________________________________ >> >>> Elecraft mailing list >> >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> >>> Help: http://mailman.qth.net/mmfaq.htm >> >>> Post: mailto:Elecraft at mailman.qth.net >> >>> >> >>> This list hosted by: http://www.qsl.net >> >>> Please help support this email list: http://www.qsl.net/donate.html >> >>> Message delivered to k9ztv at socket.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 w3tb.ted at gmail.com > > -- > 73 de Ted Edwards, W3TB and G?PWW > > and thinking about operating CW: > "Do today what others won't, > so you can do tomorrow what others can't." > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth From ardrhi at gmail.com Sat Sep 12 20:20:26 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Sat, 12 Sep 2020 20:20:26 -0400 Subject: [Elecraft] No Tx audio after WSJT upgrade In-Reply-To: <7ed47012-fb1a-524f-d694-1222c31c4fa6@techie.com> References: <1599880984868-0.post@n2.nabble.com> <1e39766a-7aa2-ced7-40f7-724416992be6@gmail.com> <26fcb332-a190-0961-6749-bcd933b897f0@comcast.net> <7ed47012-fb1a-524f-d694-1222c31c4fa6@techie.com> Message-ID: What version of Windows are you using? Windows 7 notoriously has a massive problem with WSJT-X, JS8CALL, and some other programs that use similar routines to poll the sound devices. For YEARS, I couldn't use WSJT-X normally, because while it would find all of my speakers, it would never find my currently installed microphones. I had to use a convoluted system of default devices and Voicemeeter mixer software to get it to work. What finally solved the problem permanently was when my 9 year old Windows 7 machine died, and I replaced it recently with a brand new machine with Windows 10. I'm not sure why that happens, but Windows versions below 10 seem to have a major issue with enumeration of sound devices. -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Sat, Sep 12, 2020 at 7:57 PM Neil Zampella wrote: > Actually ... WSJT-X only uses what windows tells it is available. > After Windows updates its been found that Windows will scramble the > audio devices, especially if they are USB devices. > > What has been found to work is to RENAME the device you use in the Sound > Control Panel. Bring up the Sound Control Panel, find the USB adapter > normally used for sound input to WSJT-X under Speakers and double click > to open the properties. On the first tab you can rename it to what you > want to use, such as WSJT-X Sound OUT. Do the same with the microphone > device and rename to WSJT-X Sound IN. > > Click the OK button, and then close the Sound Control Panel. I'd do a > restart to make sure that Windows has saved that info. Then open > WSJT-X and select them on the Audio setting tab. > > Most of the users who have done this have not see the 'scrambled audio > device' issue again. > > Neil, KN3ILZ > > On 9/12/2020 9:22 AM, Rich wrote: > > WJST-X does a very poor job of loading the current sound devices from > > Windows when you run the program. It appears to load whatever > > existed in the Sound Panel when it was installed. > > > > So use caution that what you see in the WJST-X audio window vs. what > > actually exists in the Windows Sound Panel. > > > > To me it appears to be more of WJST-X issue that a Windows issue > > > > Maybe there is a way to fix this, but I do not know what it is. > > > > Rich > > > > On 9/12/2020 7:20 AM, Ian Kahn, NV4C wrote: > >> Joe, > >> > >> Check your WSJT-X settings and ensure you still have the correct > >> sound card selected and that something didn't change your output > >> target/radio selection. Also, if you're running Windows, make sure > >> something else didn't change any of your sound card settings from > >> what you had prior to upgrading WSJT-X. > >> > >> 73 de, > >> > >> Ian, NV4C > >> > >> On 9/11/20 11:23 PM, W8JH wrote: > >>> I was working FT8 tonight and decided to upgrade from WSJT 2.0 to > >>> the latest > >>> 2.2. > >>> > >>> Now I have no audio on transmit. All other functions work. Decodes, > >>> band > >>> change etc. > >>> > >>> It puts the K3s in transmit but no audio. I have adjusted the Mic gain > >>> without effect. > >>> > >>> I double checked that WSJT has the K3s codec for transmit selected. > >>> Windoze > >>> shows it working as well. > >>> > >>> I?m totally stumped and wish I hadn?t upgraded now. Any ideas how to > >>> proceed > >>> ? > >>> > >>> 73, > >>> > >>> > >>> > >>> ----- > >>> 73, > >>> > >>> Joe, W8JH > >>> > >>> K3s, KPA 500, KAT 500 and KX3 happy user. > >>> -- > >>> 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 nv4c.ian at gmail.com > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to 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 ardrhi at gmail.com From rwnewbould at comcast.net Sat Sep 12 21:07:10 2020 From: rwnewbould at comcast.net (Rich) Date: Sat, 12 Sep 2020 21:07:10 -0400 Subject: [Elecraft] No Tx audio after WSJT upgrade In-Reply-To: <7ed47012-fb1a-524f-d694-1222c31c4fa6@techie.com> References: <1599880984868-0.post@n2.nabble.com> <1e39766a-7aa2-ced7-40f7-724416992be6@gmail.com> <26fcb332-a190-0961-6749-bcd933b897f0@comcast.net> <7ed47012-fb1a-524f-d694-1222c31c4fa6@techie.com> Message-ID: Nope.? I just changed the name of the codec for my 7300 from IC7300 Audio In to IC7300a Audio In.? I rebooted Windows and WJST-X stills thinks it is IC7300 Audio In.? This is somewhat of a mute point as it is still the same codec and WJST-X still works fine.?? My point is only that WJST-X is not refreshing from the sound panel after an install. Rich On 9/12/2020 19:57 PM, Neil Zampella wrote: > Actually ... WSJT-X only uses what windows tells it is available. > After Windows updates its been found that Windows will scramble the > audio devices, especially if they are USB devices. > > What has been found to work is to RENAME the device you use in the Sound > Control Panel.? Bring up the Sound Control Panel, find the USB adapter > normally used for sound input to WSJT-X under Speakers and double click > to open the properties.?? On the first tab you can rename it to what you > want to use, such as WSJT-X Sound OUT.?? Do the same with the microphone > device and rename to WSJT-X Sound IN. > > Click the OK button, and then close the Sound Control Panel.?? I'd do a > restart to make sure that Windows has saved that info.?? Then open > WSJT-X and select them on the Audio setting tab. > > Most of the users who have done this have not see the 'scrambled audio > device' issue again. > > Neil, KN3ILZ > > On 9/12/2020 9:22 AM, Rich wrote: >> WJST-X does a very poor job of loading the current sound devices from >> Windows when you run the program.?? It appears to load whatever >> existed in the Sound Panel when it was installed. >> >> So use caution that what you see in the WJST-X audio window vs. what >> actually exists in the Windows Sound Panel. >> >> To me it appears to be more of WJST-X issue that a Windows issue >> >> Maybe there is a way to fix this, but I do not know what it is. >> >> Rich >> >> On 9/12/2020 7:20 AM, Ian Kahn, NV4C wrote: >>> Joe, >>> >>> Check your WSJT-X settings and ensure you still have the correct >>> sound card selected and that something didn't change your output >>> target/radio selection. Also, if you're running Windows, make sure >>> something else didn't change any of your sound card settings from >>> what you had prior to upgrading WSJT-X. >>> >>> 73 de, >>> >>> Ian, NV4C >>> >>> On 9/11/20 11:23 PM, W8JH wrote: >>>> I was working FT8 tonight and decided to upgrade from WSJT 2.0 to >>>> the latest >>>> 2.2. >>>> >>>> Now I have no audio on transmit. All other functions work. Decodes, >>>> band >>>> change etc. >>>> >>>> It puts the K3s in transmit but no audio. I have adjusted the Mic gain >>>> without effect. >>>> >>>> I double checked that WSJT has the K3s codec for transmit selected. >>>> Windoze >>>> shows it working as well. >>>> >>>> I?m totally stumped and wish I hadn?t upgraded now. Any ideas how to >>>> proceed >>>> ? >>>> >>>> 73, >>>> >>>> >>>> >>>> ----- >>>> 73, >>>> >>>> Joe, W8JH >>>> >>>> K3s, KPA 500, KAT 500 and? KX3 happy user. >>>> -- >>>> 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 nv4c.ian at gmail.com >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to 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 rwnewbould at comcast.net From josh at voodoolab.com Sat Sep 12 21:08:12 2020 From: josh at voodoolab.com (Josh Fiden) Date: Sat, 12 Sep 2020 18:08:12 -0700 Subject: [Elecraft] No Tx audio after WSJT upgrade In-Reply-To: References: <1599880984868-0.post@n2.nabble.com> <1e39766a-7aa2-ced7-40f7-724416992be6@gmail.com> <26fcb332-a190-0961-6749-bcd933b897f0@comcast.net> <7ed47012-fb1a-524f-d694-1222c31c4fa6@techie.com> Message-ID: Interesting. I?ve been using WSJT, then WSJT-X with Win 7 for several years. First with the built-in sound device and then an external USB Tascam US-200 interface (to a K3, not S). Selected the correct audio devices from WSJT-X setup and it just worked. Never knew there were issues. Ignorance is bliss, I suppose! 73 Josh W6XU Sent from my iPad > On Sep 12, 2020, at 5:20 PM, Gwen Patton wrote: > > What version of Windows are you using? Windows 7 notoriously has a massive > problem with WSJT-X, JS8CALL, and some other programs that use similar > routines to poll the sound devices. For YEARS, I couldn't use WSJT-X > normally, because while it would find all of my speakers, it would never > find my currently installed microphones. I had to use a convoluted system > of default devices and Voicemeeter mixer software to get it to work. What > finally solved the problem permanently was when my 9 year old Windows 7 > machine died, and I replaced it recently with a brand new machine with > Windows 10. > From rwnewbould at comcast.net Sat Sep 12 22:05:01 2020 From: rwnewbould at comcast.net (Rich) Date: Sat, 12 Sep 2020 22:05:01 -0400 Subject: [Elecraft] No Tx audio after WSJT upgrade In-Reply-To: References: <1599880984868-0.post@n2.nabble.com> <1e39766a-7aa2-ced7-40f7-724416992be6@gmail.com> <26fcb332-a190-0961-6749-bcd933b897f0@comcast.net> <7ed47012-fb1a-524f-d694-1222c31c4fa6@techie.com> Message-ID: <1568b0cc-693b-0821-4c7e-44246c4fee4b@comcast.net> I guess to simplify it, It does pick the correct codec, it does not recognize that you changed the name of the codec. And I think this is probably getting way off topic for the Elecraft list and I apologize Rich On 9/12/2020 21:08 PM, Josh Fiden wrote: > Interesting. I?ve been using WSJT, then WSJT-X with Win 7 for several years. First with the built-in sound device and then an external USB Tascam US-200 interface (to a K3, not S). Selected the correct audio devices from WSJT-X setup and it just worked. Never knew there were issues. Ignorance is bliss, I suppose! > > 73 > Josh W6XU > > Sent from my iPad > >> On Sep 12, 2020, at 5:20 PM, Gwen Patton wrote: >> >> What version of Windows are you using? Windows 7 notoriously has a massive >> problem with WSJT-X, JS8CALL, and some other programs that use similar >> routines to poll the sound devices. For YEARS, I couldn't use WSJT-X >> normally, because while it would find all of my speakers, it would never >> find my currently installed microphones. I had to use a convoluted system >> of default devices and Voicemeeter mixer software to get it to work. What >> finally solved the problem permanently was when my 9 year old Windows 7 >> machine died, and I replaced it recently with a brand new machine with >> 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 rwnewbould at comcast.net From arnett.drew at gmail.com Sat Sep 12 22:20:39 2020 From: arnett.drew at gmail.com (Drew Arnett) Date: Sun, 13 Sep 2020 02:20:39 +0000 Subject: [Elecraft] KX3 SWR meter accuracy on 50 MHz? In-Reply-To: References: Message-ID: I did before shipping in for repair with a directional coupler. Looked great. On Sat, Sep 12, 2020 at 7:13 PM Nr4c wrote: > > Well, it depends on the ?Dummy? load. Have you swept the load with a good spectrum analyzer or VNA? It may not be 50 ohms at 50 MHz > > > > Sent from my iPhone > ...nr4c. bill > > > > On Sep 12, 2020, at 11:51 AM, Drew Arnett wrote: > > > > ?After getting my KX3 back from repair (before my next planned contest > > operation, thanks!), I ran some measurements to both see how great the > > repairs were and to get a new baseline for future measurements. TX > > efficiency problem was gone. > > > > However, I'm left to wonder about the accuracy of the internal SWR > > meter for 50 MHz. Using a microwave dummy load of adequate power > > rating and just a coaxial adapter, I measured the following: > > > > 14 MHz @ 1 W setting > > VSWR 1.0 to 1 (per KX3) > > > > 28 MHz @ 1 W setting > > VSWR 1.0 to 1 > > > > 50 MHz @ 1 W setting > > VSWR 1.5 to 1 > > > > 50 MHz @ 4 W setting > > VSWR 1.6 to 1 > > > > Not horrible. Not great. > > > > It's fine if it's not as accurate on 50 MHz. I just want to know if > > this is normal. Has anyone else looked at that and can share what > > they see? > > > > Thanks and best regards, > > > > Drew > > n7da > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 kevinr at coho.net Sat Sep 12 22:55:41 2020 From: kevinr at coho.net (kevinr) Date: Sat, 12 Sep 2020 19:55:41 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <48a0906b-8c1f-8d93-ff2b-372e7bdf0caf@coho.net> Good Evening, ?? The wind switched direction on Tuesday to come out of the east.? Within an hour I could see the smoke flowing through the trees.? Then ash started falling.? Luckily the smoke did not smell like a local fire.? It was from a fire in the Gifford Pinchot Forest in Washington.? The power went out just after dinner and stayed off until dawn.? Same thing on Wednesday but the smoke stream would flow north of me for a while.? But the power went out again for the night and back on again at dawn.? While I was busy up here, four large fires started along the west side of the Cascade Range.? Then the wind stopped blowing and the Willamette Valley filled with smoke.? By Thursday the west half of the state was solid smoke.? On Friday all of Oregon, all of California, and half of Washington was solid smoke.? The fires aren't close but they are very large.? Rain on Tuesday will make a big difference. ? The smoke is dense enough to interfere with my wireless 'net connection to the top of the mountain.? Last night I watched movies across my local network instead of streaming one from the 'net.? It slowed to where it was hard to send email.? Here is a link to a GIS map you can set for hot spots and fire updates.? It gives you a feel for the activity level of each of the fires. Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) ?7047 kHz at 0045z Monday (5:45 PM PDT Sunday) ?? 73, ????? Kevin. KD5ONS _ From a.durbin at msn.com Sun Sep 13 06:51:17 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 13 Sep 2020 10:51:17 +0000 Subject: [Elecraft] K1ZTE - KAT500 Message-ID: "Is the training saved per-BAND/ANTENNA combination tuning solution?.. possibly resulting in 3 solutions per band." Tuning solutions are saved for each "bin" and there are many "bins" in each band. Each bin stores up to 6 tuning solutions and each solution includes the antenna selection. You can inspect the tuning solutions for each bin with command DMf; where f is frequency in kHz. e.g. DM14200; returns: DM BN05;BIN 59;FR 14181-14200;ADDR 35020; AN1;BYPN;SIDET;C00;L05;VSWRB 1.42; AN1;BYPN;SIDEA;C00;L04;VSWRB 1.42; AN1;BYPB;VSWRB 1.00; AN1;BYPN;SIDET;C03;L07;VSWRB 1.00; AN1;BYPN;SIDEA;C00;L06;VSWRB 1.00; UNUSED Andy, k3wyc From a.durbin at msn.com Sun Sep 13 07:18:16 2020 From: a.durbin at msn.com (Andy Durbin) Date: Sun, 13 Sep 2020 11:18:16 +0000 Subject: [Elecraft] K1ZTE - KAT500 In-Reply-To: References: Message-ID: "Tuning solutions are saved for each "bin" and there are many "bins" in each band. Each bin stores up to 6 tuning solutions and each solution includes the antenna selection." Here is an example of a bin that contains tuning solutions for AN1 and AN3: dm14076; DM BN05;BIN 53;FR 14061-14080;ADDR 34804; AN1;BYPN;SIDEA;C07;L07;VSWRB 1.49; AN3;BYPN;SIDEA;C00;L04;VSWRB 1.00; AN1;BYPN;SIDEA;C06;L09;VSWRB 1.43; AN1;BYPN;SIDEA;C02;L06;VSWRB 1.56; AN1;BYPN;SIDEA;C00;L07;VSWRB 1.43; AN1;BYPN;SIDET;C00;L07;VSWRB 1.43; On 20 m band Antenna 3 is my dummy load. If the bin contains 6 saved solutions then each new solution pushes the stack and the bottom (oldest) solution is lost. Andy, k3wyc From ny9h at arrl.net Sun Sep 13 09:40:18 2020 From: ny9h at arrl.net (Bill Steffey NY9H) Date: Sun, 13 Sep 2020 09:40:18 -0400 Subject: [Elecraft] K9YC In-Reply-To: <35be8f89-407a-b361-fdc9-d78b52867f0f@audiosystemsgroup.com> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> <97ab6d88-0480-23c7-a5d7-3c9c7bcbff88@audiosystemsgroup.com> <35be8f89-407a-b361-fdc9-d78b52867f0f@audiosystemsgroup.com> Message-ID: <94b2a00b-7be4-3ec5-6308-08bdad9bfe55@arrl.net> Glad your home made it thru the fires.... hope you get home soon !!! Very Great to hear you were awarded the ARRL Tech Services Award......?? you certainly earned it. http://www.arrl.org/news/arrl-technical-service-award-conferred It's fun to see you and a few other brains here keep some of the "myths" quiet.? Especially the audio related . As Jim moved to California from Chicago he scooped up my TenTec Titan to start his "Titan" collection. Jim & I go back to the audio business in Chicago 1980s/90s...?? glad I can say this smart cookie is a friend. bill ny9h/3 Have you been able to get home yet? What's the status of your home and antennas? > Got back a few days ago, only damage is to floor under refrigerator > that had been without power for 3 wks. House, shack, antennas all > fine. No power, water, or internet, so we're in a rental townhouse for > a while. > > 73, Jim K9YC > -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From dave at nk7z.net Sun Sep 13 09:48:34 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 13 Sep 2020 06:48:34 -0700 Subject: [Elecraft] K9YC In-Reply-To: <94b2a00b-7be4-3ec5-6308-08bdad9bfe55@arrl.net> References: <89ADCE08-95C4-492D-A3A5-93474A0A3BC3@elecraft.com> <97ab6d88-0480-23c7-a5d7-3c9c7bcbff88@audiosystemsgroup.com> <35be8f89-407a-b361-fdc9-d78b52867f0f@audiosystemsgroup.com> <94b2a00b-7be4-3ec5-6308-08bdad9bfe55@arrl.net> Message-ID: <5a587c1d-cb61-9066-a9ed-a2263b91c1e9@nk7z.net> Congratz Jim! On both, a house that is intact, and your receiving the ARRL Tech Services Award! 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 9/13/20 6:40 AM, Bill Steffey NY9H wrote: > Glad your home made it thru the fires.... hope you get home soon !!! > > Very Great to hear you were awarded the ARRL Tech Services Award...... > you certainly earned it. > > http://www.arrl.org/news/arrl-technical-service-award-conferred > > It's fun to see you and a few other brains here keep some of the "myths" > quiet.? Especially the audio related . > > As Jim moved to California from Chicago he scooped up my TenTec Titan to > start his "Titan" collection. Jim & I go back to the audio business in > Chicago 1980s/90s...?? glad I can say this smart cookie is a friend. > > bill ny9h/3 > > > Have you been able to get home yet? What's the status of your home and > antennas? > >> Got back a few days ago, only damage is to floor under refrigerator >> that had been without power for 3 wks. House, shack, antennas all >> fine. No power, water, or internet, so we're in a rental townhouse for >> a while. >> >> 73, Jim K9YC >> > From mike at ve3yf.com Sun Sep 13 12:35:55 2020 From: mike at ve3yf.com (Mike VE3YF) Date: Sun, 13 Sep 2020 16:35:55 +0000 Subject: [Elecraft] K9YC In-Reply-To: <35be8f89-407a-b361-fdc9-d78b52867f0f@audiosystemsgroup.com> References: <35be8f89-407a-b361-fdc9-d78b52867f0f@audiosystemsgroup.com> Message-ID: Jim:: Congratulations on conditions of the house. Your fingers must have been crossed. Continue to stay safe and be well. Don't want to forget, thanks for all you have done to help others and myself thru your various articles, also congratulations on your 2020 ARRL Technical Service Award. Well Deserved... -- *73 De Mike* *VE3YF _/http://www.ve3yf.com/_* From elecraft.list at videotron.ca Sun Sep 13 13:18:23 2020 From: elecraft.list at videotron.ca (Tom) Date: Sun, 13 Sep 2020 13:18:23 -0400 Subject: [Elecraft] There is a new release of Win4K3Suite Message-ID: <005501d689f1$e4b0bd40$ae1237c0$@videotron.ca> Hello, There is a new version of Win4K3Suite available. This release has a number of updates improving reliability. Win4K3Suite is a full featured control program for the K3/S, KX3 and KX2. It has a built in Panadapter that works with LPPAN and a sound card, as well as the SDRPlay RSP's. It supports the KAT500, KPA500/1500 and the KXPA100 on most of the above radios. A unique feature is that is has 6 built in Virtual Radios, each of which works just like an Elecraft radio. This allows sharing of a single COM port with up to 6 applications. It also has a built in HRDLogbook server and the EiBi Shortwave database. There are many more features like full access to menu items, a cluster display using your ClubLog credentials and many more. You see more information here: https://www.youtube.com/results?search_query=win4k3suite and download a fully functional 30 day trial at va2fsq.com 73 Tom va2fsq.com -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From n6kr at elecraft.com Sun Sep 13 13:40:52 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 13 Sep 2020 10:40:52 -0700 Subject: [Elecraft] K4 Predistortion planned? timetable? In-Reply-To: References: Message-ID: <81F19A5A-445A-4C23-A1F9-00FDADF0FFB0@elecraft.com> > Robert Sands wrote: > > Is the processor in the K4 fast or big enough to handle the demand of the anticipated predistortion algorithm? Yes. Modulation and demodulation is handled by a dedicated, very fast floating-point DSP with various on-chip accelerators. The panadapters run from separate hardware, so the DSP has plenty of cycles to burn, especially in transmit mode. > Is this predistortion algorithm a proprietary matter or is it constructed de novo from existing knowledge? There are three parts to this. First you need the appropriate hardware paths, which we already have in place: RF sampling of the reference waveform as well as the internal or external transmit signal. Second, the DSP has to apply complex curve fitting at baseband. This is typically done with several terms of a Volterra series, etc. Finally you need an algorithm for adaptive convergence on the ideal coefficients. This can range from LMS (least-mean-squares) to back-propagation (neural net). This is the "fun" (time consuming) part of the R&D, with tradeoffs in performance vs. processing time vs. staff availability. Given the multitude of distractions I can't say exactly how long this will take. It's likely that a simpler version of the algorithm will be available initially, allowing for early evaluation. 73, Wayne N6KR From turnbull at net1.ie Sun Sep 13 15:12:34 2020 From: turnbull at net1.ie (turnbull) Date: Sun, 13 Sep 2020 20:12:34 +0100 Subject: [Elecraft] K4 Predistortion planned? timetable? In-Reply-To: <81F19A5A-445A-4C23-A1F9-00FDADF0FFB0@elecraft.com> Message-ID: <5f5e6f24.1c69fb81.b1d23.7e1d@mx.google.com> Wayne and friends, This recent correspondence is one of the reasons why I value Elecraft.? ?The design engineers come down to their users and give insight.? ?It was the right decision to plonk down that deposit.The smoke will clear and Elecraft will be in the California sun; there is reason for naming it the golden state.? ?I pray you are left with plenty of forest for your hikes.73 Doug EI2CNSent from my Samsung Galaxy smartphone. -------- Original message --------From: Wayne Burdick Date: 13/09/2020 18:42 (GMT+00:00) To: Robert Sands Cc: Elecraft Reflector Subject: Re: [Elecraft] K4 Predistortion planned? timetable? > Robert Sands wrote:> > Is the processor in the K4 fast or big enough to handle the demand of the anticipated predistortion algorithm?Yes. Modulation and demodulation is handled by a dedicated, very fast floating-point DSP with various on-chip accelerators. The panadapters run from separate hardware, so the DSP has plenty of cycles to burn, especially in transmit mode.> Is this predistortion algorithm a proprietary matter or is it constructed de novo from existing knowledge?There are three parts to this. First you need the appropriate hardware paths, which we already have in place: RF sampling of the reference waveform as well as the internal or external transmit signal. Second, the DSP has to apply complex curve fitting at baseband. This is typically done with several terms of a Volterra series, etc.Finally you need an algorithm for adaptive convergence on the ideal coefficients. This can range from LMS (least-mean-squares) to back-propagation (neural net). This is the "fun" (time consuming) part of the R&D, with tradeoffs in performance vs. processing time vs. staff availability. Given the multitude of distractions I can't say exactly how long this will take. It's likely that a simpler version of the algorithm will be available initially, allowing for early evaluation.73,WayneN6KR______________________________________________________________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 turnbull at net1.ie From jrichards at k8jhr.com Sun Sep 13 17:32:21 2020 From: jrichards at k8jhr.com (JR) Date: Sun, 13 Sep 2020 17:32:21 -0400 Subject: [Elecraft] Why predistortion ? Message-ID: Why are so many ops obsessed with predistortion? The Elecraft K-Line already produces some of the cleanest, purest transmit signals around.?? Do we need predistortion ?? If so, why, and how much better is it than what we already have?? Should I wait to buy a new rig until that is available? Thanks and Happy Trails to all.?? K8JHR _________________________________ From n6kr at elecraft.com Sun Sep 13 18:03:00 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 13 Sep 2020 15:03:00 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> Hi JR, Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. Wayne, N6KR ---- elecraft.com > On Sep 13, 2020, at 2:34 PM, JR wrote: > > ?Why are so many ops obsessed with predistortion? > > The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? > > Thanks and Happy Trails to all. K8JHR > _________________________________ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ehr at qrv.com Sun Sep 13 18:41:52 2020 From: ehr at qrv.com (E.H. Russell) Date: Sun, 13 Sep 2020 18:41:52 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> References: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> Message-ID: <006301d68a1f$13ca1b80$3b5e5280$@qrv.com> Well put. TKS, 73 ED W2RF -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Wayne Burdick Sent: Sunday, September 13, 2020 6:03 PM To: JR Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? Hi JR, Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. Wayne, N6KR ---- elecraft.com > On Sep 13, 2020, at 2:34 PM, JR wrote: > > ?Why are so many ops obsessed with predistortion? > > The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? > > Thanks and Happy Trails to all. K8JHR > _________________________________ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ehr at qrv.com From w8fn at windstream.net Sun Sep 13 18:48:17 2020 From: w8fn at windstream.net (Randy Farmer) Date: Sun, 13 Sep 2020 18:48:17 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> References: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> Message-ID: <61bfbc52-60e4-aef8-4869-b07720bb16c6@windstream.net> I can testify to the effectiveness of predistortion techniques from my 5 years or so as a CDMA Cellular Base Station engineer with Motorola. The first generation of CDMA transmitters had a very specific "spectral mask" that had to be certified. As I recall, the transmitter output that met the Spectral Mask requirements of something like -60 dBc outside of the channel bandwidth showed up with essentially vertical sides (and a very flat top) on a spectrum analyzer. Obtaining this performance was neither cheap nor easy, and the associated testing was pretty stringent as well. Meeting the specs demanded very sophisticated predistortion techniques. Be glad that conventional SSB and the fairly simple waveforms used in amateur digital comms don't require too much dynamic headroom. The first generation CDMA waveform had a roughly 10:1, or 20dB peak-to-average power ratio. This meant that the transmitters we designed to produce 20W average power were actually capable of 200W continuous output power and still met the spectral mask IMD requirements. Putting multiple carriers through the PA required either higher power capability or derating the power output for each individual carrier. I no longer work in the industry, so I don't know what the current generation of signals requires, but with the greater bandwidths and more complex modulation schemes used now you can bet the requirements, and therefore the transmitter design challenge, didn't get any easier. 73... Randy, W8FN On 9/13/2020 6:03 PM, Wayne Burdick wrote: > Hi JR, > > Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. > > To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. > > A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. > > Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. > > Wayne, > N6KR > > ---- > elecraft.com From dave at nk7z.net Sun Sep 13 18:48:40 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 13 Sep 2020 15:48:40 -0700 Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good antenna on 18 MHz. Message-ID: <113567fc-be02-24b2-6259-f928e7f62555@nk7z.net> Hello, My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. Antenna is a single feedline to a 6BTV, and an analyzer says all is good at low power. At 100 watts, all seems good. All other bands seem OK at high power. Question: When in bypass, is the entire tuner bypassed? Question: When turned off is the tuner bypassed? Which antenna is default? -- 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources From dick at elecraft.com Sun Sep 13 18:57:03 2020 From: dick at elecraft.com (Dick Dievendorff) Date: Sun, 13 Sep 2020 15:57:03 -0700 Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good antenna on 18 MHz. In-Reply-To: <113567fc-be02-24b2-6259-f928e7f62555@nk7z.net> References: <113567fc-be02-24b2-6259-f928e7f62555@nk7z.net> Message-ID: When unpowered the KAT500 is bypassed, ANT1. When the ATU is in mode BYP, yes, it?s bypassed. 73 de Dick, K6KR > On Sep 13, 2020, at 15:52, Dave Cole wrote: > > ?Hello, > My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. Antenna is a single feedline to a 6BTV, and an analyzer says all is good at low power. At 100 watts, all seems good. > > All other bands seem OK at high power. > > Question: When in bypass, is the entire tuner bypassed? > Question: When turned off is the tuner bypassed? Which antenna is default? > -- > 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 dick at elecraft.com From wa2lbi at gmail.com Sun Sep 13 19:24:24 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Sun, 13 Sep 2020 19:24:24 -0400 Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good antenna on 18 MHz. In-Reply-To: References: <113567fc-be02-24b2-6259-f928e7f62555@nk7z.net> Message-ID: When you have issues like this the best test is to use a known good dummy load. That removes the antenna system from the equation. See what happens on 18mHz when transmitting into the summy load. Ken WA2LBI On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff wrote: > When unpowered the KAT500 is bypassed, ANT1. > > When the ATU is in mode BYP, yes, it?s bypassed. > > 73 de Dick, K6KR > > > On Sep 13, 2020, at 15:52, Dave Cole wrote: > > > > ?Hello, > > My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. > Antenna is a single feedline to a 6BTV, and an analyzer says all is good at > low power. At 100 watts, all seems good. > > > > All other bands seem OK at high power. > > > > Question: When in bypass, is the entire tuner bypassed? > > Question: When turned off is the tuner bypassed? Which antenna is > default? > > -- > > 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 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 wa2lbi at gmail.com From johnae5x at gmail.com Sun Sep 13 19:40:01 2020 From: johnae5x at gmail.com (John Harper) Date: Sun, 13 Sep 2020 18:40:01 -0500 Subject: [Elecraft] Why predistortion ? Message-ID: Here's a demonstration of predistortion in use (relevant part starts at the 10-minute point): https://www.youtube.com/watch?v=0adHZOTqTlQ John AE5X https://ae5x.blogspot.com >Why are so many ops obsessed with predistortion? From wes_n7ws at triconet.org Sun Sep 13 20:20:39 2020 From: wes_n7ws at triconet.org (Wes) Date: Sun, 13 Sep 2020 17:20:39 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <445dca7d-bbc8-be0f-bb88-70ccc51e88b8@triconet.org> You're kidding, right? Wes? N7WS On 9/13/2020 2:32 PM, JR wrote: > The Elecraft K-Line already produces some of the cleanest, purest transmit > signals around.... > > Thanks and Happy Trails to all.?? K8JHR From W2xj at w2xj.net Sun Sep 13 20:24:07 2020 From: W2xj at w2xj.net (W2xj) Date: Sun, 13 Sep 2020 20:24:07 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> References: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> Message-ID: <267B2358-25D4-4DEF-B624-50C4C830FA86@w2xj.net> wayne, After you have the K4 fully put to bed, for your next project you might want to consider an amp that is directly driven by an I/Q stream. The amplifier will be much more efficient (less power consumption) and you start out with less IMD before any pre-distortion. Sent from my iPad > On Sep 13, 2020, at 6:05 PM, Wayne Burdick wrote: > > ?Hi JR, > > Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. > > To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. > > A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. > > Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. > > Wayne, > N6KR > > ---- > elecraft.com > >> On Sep 13, 2020, at 2:34 PM, JR wrote: >> >> ?Why are so many ops obsessed with predistortion? >> >> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >> >> Thanks and Happy Trails to all. K8JHR >> _________________________________ >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 w2xj at w2xj.net From dave at nk7z.net Sun Sep 13 20:53:36 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 13 Sep 2020 17:53:36 -0700 Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good antenna on 18 MHz. In-Reply-To: References: <113567fc-be02-24b2-6259-f928e7f62555@nk7z.net> Message-ID: <71d26f37-2a9a-5b6d-1255-f720f0e85869@nk7z.net> That helps triage the issue... Something in my antenna must have gone wonky... I am using a 6BTV, with the 18 Meter add on kit, so the same feedpoint is used for all bands, and they are fine... I was worried it was the tuner. I'll go check the antenna out tonight, and in the morning as well... THANK YOU! Knowing the tuner is bypassed in Bypass, helps... Next is to put a dummy load on the tuner... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 9/13/20 3:57 PM, Dick Dievendorff wrote: > When unpowered the KAT500 is bypassed, ANT1. > > When the ATU is in mode BYP, yes, it?s bypassed. > > 73 de Dick, K6KR > >> On Sep 13, 2020, at 15:52, Dave Cole wrote: >> >> ?Hello, >> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. Antenna is a single feedline to a 6BTV, and an analyzer says all is good at low power. At 100 watts, all seems good. >> >> All other bands seem OK at high power. >> >> Question: When in bypass, is the entire tuner bypassed? >> Question: When turned off is the tuner bypassed? Which antenna is default? >> -- >> 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 dick at elecraft.com From dave at nk7z.net Sun Sep 13 20:54:02 2020 From: dave at nk7z.net (Dave Cole) Date: Sun, 13 Sep 2020 17:54:02 -0700 Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good antenna on 18 MHz. In-Reply-To: References: <113567fc-be02-24b2-6259-f928e7f62555@nk7z.net> Message-ID: <1cb524e9-b29e-18c6-f2e0-10d9ddda6777@nk7z.net> Thanks Ken... That is the next step... Now I need to locate one... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 9/13/20 4:24 PM, Ken Winterling wrote: > When you have issues like this the best test is to use a known good > dummy load. That removes the antenna system from the equation. See what > happens on 18mHz when transmitting into the summy load. > > Ken > WA2LBI > > > > > On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff > wrote: > > When unpowered the KAT500 is bypassed, ANT1. > > When the ATU is in mode BYP, yes, it?s bypassed. > > 73 de Dick, K6KR > > > On Sep 13, 2020, at 15:52, Dave Cole > wrote: > > > > ?Hello, > > My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., > only. Antenna is a single feedline to a 6BTV, and an analyzer says > all is good at low power.? At 100 watts, all seems good. > > > > All other bands seem OK at high power. > > > > Question:? When in bypass, is the entire tuner bypassed? > > Question:? When turned off is the tuner bypassed?? Which antenna > is default? > > -- > > 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 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 wa2lbi at gmail.com > From ab7echo at gmail.com Sun Sep 13 21:50:41 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 13 Sep 2020 18:50:41 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: I don't know where you got the idea that the K-Line produces the cleanest signals.? As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. Dave?? AB7E On 9/13/2020 2:32 PM, JR wrote: > Why are so many ops obsessed with predistortion? > > The Elecraft K-Line already produces some of the cleanest, purest > transmit signals around.?? Do we need predistortion ?? If so, why, and > how much better is it than what we already have?? Should I wait to buy > a new rig until that is available? > > Thanks and Happy Trails to all.?? K8JHR From frantz at pwpconsult.com Sun Sep 13 21:59:13 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sun, 13 Sep 2020 21:59:13 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> Message-ID: Wayne is right, it's the right thing to do. And we amateurs try to produce the best signals we can. (Ignore the wide CW signals during contests. :-) ) But the value will also show up during multi-op situations like running 14A during field day. Field day is much more fun if everyone gets a chance to operate. 73 Bill AE6JV On 9/13/20 at 6:03 PM, n6kr at elecraft.com (Wayne Burdick) wrote: >Predistortion, correctly applied, can reduce interference >between adjacent stations on a crowded band. This is a factor >at least some fraction of the time during typical amateur radio >use. Beyond that, the motivation for a ?pure? signal >exemplifies the amateur spirit of cooperation, and is an >example of keeping the hobby on the forefront of electrical design. ----------------------------------------------------------------------- Bill Frantz | Privacy is dead, get over | Periwinkle (408)348-7900 | it. | 150 Rivermead Rd #235 www.pwpconsult.com | - Scott McNealy (1999) | Peterborough, NH 03458 From n6kr at elecraft.com Sun Sep 13 22:14:52 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Sun, 13 Sep 2020 19:14:52 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. 73, Wayne N6KR > On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: > > > I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. > > Dave AB7E > > > On 9/13/2020 2:32 PM, JR wrote: >> Why are so many ops obsessed with predistortion? >> >> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >> >> Thanks and Happy Trails to all. K8JHR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jim at audiosystemsgroup.com Mon Sep 14 00:14:47 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 13 Sep 2020 21:14:47 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <3b519632-c9d4-fc1c-aa1d-dd61280309eb@audiosystemsgroup.com> On 9/13/2020 2:32 PM, JR wrote: > The Elecraft K-Line already produces some of the cleanest, purest > transmit signals around.?? Do we need predistortion ? If you care about a clean signal, YES! If you don't mind being a bad neighbor, no. 73, Jim K9YC From jim at audiosystemsgroup.com Mon Sep 14 00:25:46 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 13 Sep 2020 21:25:46 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> References: <93A9DF67-0B33-4FBF-88FC-226D98D271A2@elecraft.com> Message-ID: <982c6d3b-e290-2211-62c9-101b470408aa@audiosystemsgroup.com> On 9/13/2020 3:03 PM, Wayne Burdick wrote: > Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. I hope that this feature will be implemented for CW as well. CW is 100% AM of a carrier by rectangular pulses, so any distortion in the transmit chain results in clicks. Elecraft pioneered very clean keying waveforms; it would be unfortunate for that to be lost with IMD in the power stages. 73, Jim K9YC From ab7echo at gmail.com Mon Sep 14 00:43:21 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 13 Sep 2020 21:43:21 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> References: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> Message-ID: <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com> Of course, but that's a conscious choice by Elecraft and it does not result in the "cleanest, purest signals around."? I give Elecraft tons of credit for the other measures they have take to produce good signals, which is why I own and will keep my upgraded K3 probably forever, but K8JHR simply was incorrect in his comment and it makes a difference when considering the expanding focus by folks like Sherwood and others to clean up the bands.? When it comes to IMD, Elecraft is not one of the better players.? The fact that that's by choice doesn't change anything.? I suspect that 95+% of K3 rigs are used in portable/emergency situations less than 5% of the time. 73, Dave?? AB7E On 9/13/2020 7:14 PM, Wayne Burdick wrote: > 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. > > On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. > > 73, > Wayne > N6KR > > > >> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >> >> >> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >> >> Dave AB7E >> >> >> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 kevinr at coho.net Mon Sep 14 00:51:33 2020 From: kevinr at coho.net (kevinr) Date: Sun, 13 Sep 2020 21:51:33 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: Good Evening, ?? Signals were stronger than last week with less noise on both bands.? QSB was a little higher on forty meters.? Most of you reported very nice weather.? Even out west the weather is not too bad once you allow for all the smoke.? It certainly makes working outside difficult.? Staying inside helps but I still have a stuffy nose and a mild headache.? My begonias don't like the smoke either, they are rapidly losing blossoms. ?? The forty meter net improves as the days grow shorter.? I was able to reach Texas again.? Hopefully there will be some new sunspots this week.? That would help my reach. ? On 14050.8 kHz at 2200z: W0CZ - Ken - ND NO8V - John - MI AB9V - Mike - IN K6XK - Roy - IA ? On 7047.5 kHz at 0045z: W0CZ - Ken - ND K0DTJ - Brian - CA K6PJV - Dale - CA W8OV - Dave - TX I plan to work inside again this week.? I need to collect wood but exercise in these smoky conditions makes the headaches worse. A week of rain starting tomorrow night will help.? Maybe they will slow the fires in the Cascades and clear our skies.? 2020 has been quite a year.? I'm waiting for January so we can start over. ?? Until next week 73, ????? Kevin.? KD5ONS - cutting angle = degrees(atan2(twist, PI() * caliber)) From dave at nk7z.net Mon Sep 14 07:52:03 2020 From: dave at nk7z.net (Dave Cole) Date: Mon, 14 Sep 2020 04:52:03 -0700 Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good antenna on 18 MHz. In-Reply-To: References: <113567fc-be02-24b2-6259-f928e7f62555@nk7z.net> Message-ID: Hi ken, Added the dummy, no problems, so it is the antenna... Also, given it is a 6BTV with the 18 meter add on, and all other bands work, it is not the feedline... This makes it simple to fix! It is either a break with the laws of physics as we understand them today-- or a connection has come loose. Given there are only two connections... I suspect it will be a simple fix. 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist ARRL Asst. Director, NW Division, Technical Resources On 9/13/20 4:24 PM, Ken Winterling wrote: > When you have issues like this the best test is to use a known good > dummy load. That removes the antenna system from the equation. See what > happens on 18mHz when transmitting into the summy load. > > Ken > WA2LBI > > > > > On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff > wrote: > > When unpowered the KAT500 is bypassed, ANT1. > > When the ATU is in mode BYP, yes, it?s bypassed. > > 73 de Dick, K6KR > > > On Sep 13, 2020, at 15:52, Dave Cole > wrote: > > > > ?Hello, > > My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., > only. Antenna is a single feedline to a 6BTV, and an analyzer says > all is good at low power.? At 100 watts, all seems good. > > > > All other bands seem OK at high power. > > > > Question:? When in bypass, is the entire tuner bypassed? > > Question:? When turned off is the tuner bypassed?? Which antenna > is default? > > -- > > 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 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 wa2lbi at gmail.com > From wa2lbi at gmail.com Mon Sep 14 07:54:32 2020 From: wa2lbi at gmail.com (Ken Winterling) Date: Mon, 14 Sep 2020 07:54:32 -0400 Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good antenna on 18 MHz. In-Reply-To: References: <113567fc-be02-24b2-6259-f928e7f62555@nk7z.net> Message-ID: GL! Ken WA2LBI On Mon, Sep 14, 2020 at 7:53 AM Dave Cole wrote: > Hi ken, > Added the dummy, no problems, so it is the antenna... Also, given it is > a 6BTV with the 18 meter add on, and all other bands work, it is not the > feedline... > > This makes it simple to fix! It is either a break with the laws of > physics as we understand them today-- or a connection has come loose. > Given there are only two connections... I suspect it will be a simple fix. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > On 9/13/20 4:24 PM, Ken Winterling wrote: > > When you have issues like this the best test is to use a known good > > dummy load. That removes the antenna system from the equation. See what > > happens on 18mHz when transmitting into the summy load. > > > > Ken > > WA2LBI > > > > > > > > > > On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff > > wrote: > > > > When unpowered the KAT500 is bypassed, ANT1. > > > > When the ATU is in mode BYP, yes, it?s bypassed. > > > > 73 de Dick, K6KR > > > > > On Sep 13, 2020, at 15:52, Dave Cole > > wrote: > > > > > > ?Hello, > > > My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., > > only. Antenna is a single feedline to a 6BTV, and an analyzer says > > all is good at low power. At 100 watts, all seems good. > > > > > > All other bands seem OK at high power. > > > > > > Question: When in bypass, is the entire tuner bypassed? > > > Question: When turned off is the tuner bypassed? Which antenna > > is default? > > > -- > > > 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 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 Elecraft at mailman.qth.net> > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to wa2lbi at gmail.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wa2lbi at gmail.com From nlemaire at q.com Mon Sep 14 11:10:55 2020 From: nlemaire at q.com (Nigel Lemaire) Date: Mon, 14 Sep 2020 08:10:55 -0700 Subject: [Elecraft] 630 meter operation on the K4 Message-ID: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> Wondering what capabilities the K4 will have on this (these) bands... 73 Nigel Wa6MSE From pincon at erols.com Sun Sep 13 22:42:02 2020 From: pincon at erols.com (Charlie T) Date: Sun, 13 Sep 2020 22:42:02 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <007401d68a40$a4157ce0$ec4076a0$@erols.com> According to Rob Sherwood, the Collins 32S-3 produces the cleanest SSB signal on the air of any commercial amateur radio transmitters. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert Sent: Sunday, September 13, 2020 9:51 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. Dave AB7E On 9/13/2020 2:32 PM, JR wrote: > Why are so many ops obsessed with predistortion? > > The Elecraft K-Line already produces some of the cleanest, purest > transmit signals around. Do we need predistortion ? If so, why, and > how much better is it than what we already have? Should I wait to buy > a new rig until that is available? > > Thanks and Happy Trails to all. K8JHR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 Mon Sep 14 07:29:48 2020 From: pincon at erols.com (Charlie T) Date: Mon, 14 Sep 2020 07:29:48 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com> References: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com> Message-ID: <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> Maybe I'm missing something here, but it would seem to me that if an FET linear amplifier running from 50 V or higher is considerably cleaner than one running from 12 V, that, for a high end rig, a simple step-up switching supply could solve the problem. But, that obviously adds to the cost so it IS somewhat of a conundrum. However, implementing the pre-distortion function IS probably a better long-term solution. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert Sent: Monday, September 14, 2020 12:43 AM To: Elecraft Reflector Subject: Re: [Elecraft] Why predistortion ? Of course, but that's a conscious choice by Elecraft and it does not result in the "cleanest, purest signals around." I give Elecraft tons of credit for the other measures they have take to produce good signals, which is why I own and will keep my upgraded K3 probably forever, but K8JHR simply was incorrect in his comment and it makes a difference when considering the expanding focus by folks like Sherwood and others to clean up the bands. When it comes to IMD, Elecraft is not one of the better players. The fact that that's by choice doesn't change anything. I suspect that 95+% of K3 rigs are used in portable/emergency situations less than 5% of the time. 73, Dave AB7E On 9/13/2020 7:14 PM, Wayne Burdick wrote: > 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. > > On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. > > 73, > Wayne > N6KR > > > >> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >> >> >> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >> >> Dave AB7E >> >> >> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 pincon at erols.com From bill at wjschmidt.com Mon Sep 14 12:00:25 2020 From: bill at wjschmidt.com (Dr. William J. Schmidt) Date: Mon, 14 Sep 2020 11:00:25 -0500 Subject: [Elecraft] Why predistortion ? In-Reply-To: <007401d68a40$a4157ce0$ec4076a0$@erols.com> References: <007401d68a40$a4157ce0$ec4076a0$@erols.com> Message-ID: <000c01d68ab0$2937ac80$7ba70580$@wjschmidt.com> 6AU6 - 6CL6 - 6146A trio is a very and associated circuitry produces some of the lowest distortion products when run at the right conditions (voltages, etc). Note at 75 watts the 6146 is in its sweet spot. Dr. William J. Schmidt - K9HZ email:? bill at wjschmidt.com -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Charlie T Sent: Sunday, September 13, 2020 9:42 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? According to Rob Sherwood, the Collins 32S-3 produces the cleanest SSB signal on the air of any commercial amateur radio transmitters. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert Sent: Sunday, September 13, 2020 9:51 PM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. Dave AB7E On 9/13/2020 2:32 PM, JR wrote: > Why are so many ops obsessed with predistortion? > > The Elecraft K-Line already produces some of the cleanest, purest > transmit signals around. Do we need predistortion ? If so, why, and > how much better is it than what we already have? Should I wait to buy > a new rig until that is available? > > Thanks and Happy Trails to all. K8JHR ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 bill at wjschmidt.com -- This email has been checked for viruses by AVG. https://www.avg.com From bill at wjschmidt.com Mon Sep 14 12:05:01 2020 From: bill at wjschmidt.com (Dr. William J. Schmidt) Date: Mon, 14 Sep 2020 11:05:01 -0500 Subject: [Elecraft] Why predistortion ? In-Reply-To: <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> References: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com> <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> Message-ID: <000f01d68ab0$cdb95240$692bf6c0$@wjschmidt.com> Always tradeoffs to be made. Boosting 12V volts to 50V means some sort of converter that can add its own distortion products, plus expense and additional complexity (read that "reliability") and efficiency. There's no free lunch here. Dr. William J. Schmidt - K9HZ J68HZ email:? bill at wjschmidt.com -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Charlie T Sent: Monday, September 14, 2020 6:30 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? Maybe I'm missing something here, but it would seem to me that if an FET linear amplifier running from 50 V or higher is considerably cleaner than one running from 12 V, that, for a high end rig, a simple step-up switching supply could solve the problem. But, that obviously adds to the cost so it IS somewhat of a conundrum. However, implementing the pre-distortion function IS probably a better long-term solution. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert Sent: Monday, September 14, 2020 12:43 AM To: Elecraft Reflector Subject: Re: [Elecraft] Why predistortion ? Of course, but that's a conscious choice by Elecraft and it does not result in the "cleanest, purest signals around." I give Elecraft tons of credit for the other measures they have take to produce good signals, which is why I own and will keep my upgraded K3 probably forever, but K8JHR simply was incorrect in his comment and it makes a difference when considering the expanding focus by folks like Sherwood and others to clean up the bands. When it comes to IMD, Elecraft is not one of the better players. The fact that that's by choice doesn't change anything. I suspect that 95+% of K3 rigs are used in portable/emergency situations less than 5% of the time. 73, Dave AB7E On 9/13/2020 7:14 PM, Wayne Burdick wrote: > 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. > > On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. > > 73, > Wayne > N6KR > > > >> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >> >> >> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >> >> Dave AB7E >> >> >> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 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 bill at wjschmidt.com -- This email has been checked for viruses by AVG. https://www.avg.com From lists at subich.com Mon Sep 14 12:10:50 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Mon, 14 Sep 2020 12:10:50 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> References: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com> <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> Message-ID: <4a2bb1a3-5428-9e88-62be-7f165f5cf004@subich.com> On 2020-09-14 7:29 AM, Charlie T wrote: > > However, implementing the pre-distortion function IS probably a > better long-term solution. Pre-distortion on a 12V rig only hides the problem. Any "home station" rig should have 28/50 V finals *and* then one can make it even cleaner with pre-distortion. If necessary, use 50V capable finals at 50W maximum output for 12V operation and 150-200 W output when a 48V supply is available. 73, ... Joe, W4TV On 2020-09-14 7:29 AM, Charlie T wrote: > Maybe I'm missing something here, but it would seem to me that if an FET linear amplifier running from 50 V or higher is considerably cleaner than one running from 12 V, that, for a high end rig, a simple step-up switching supply could solve the problem. But, that obviously adds to the cost so it IS somewhat of a conundrum. > > However, implementing the pre-distortion function IS probably a better long-term solution. > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert > Sent: Monday, September 14, 2020 12:43 AM > To: Elecraft Reflector > Subject: Re: [Elecraft] Why predistortion ? > > > > Of course, but that's a conscious choice by Elecraft and it does not result in the "cleanest, purest signals around." I give Elecraft tons of credit for the other measures they have take to produce good signals, which is why I own and will keep my upgraded K3 probably forever, but K8JHR simply was incorrect in his comment and it makes a difference when considering the expanding focus by folks like Sherwood and others to clean up the bands. When it comes to IMD, Elecraft is not one of the better players. The fact that that's by choice doesn't change anything. I suspect that 95+% of K3 rigs are used in portable/emergency situations less than 5% of the time. > > 73, > Dave AB7E > > > > On 9/13/2020 7:14 PM, Wayne Burdick wrote: >> 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. >> >> On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. >> >> 73, >> Wayne >> N6KR >> >> >> >>> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >>> >>> >>> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >>> >>> Dave AB7E >>> >>> >>> On 9/13/2020 2:32 PM, JR wrote: >>>> Why are so many ops obsessed with predistortion? >>>> >>>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>>> >>>> Thanks and Happy Trails to all. K8JHR From wunder at wunderwood.org Mon Sep 14 12:17:29 2020 From: wunder at wunderwood.org (Walter Underwood) Date: Mon, 14 Sep 2020 09:17:29 -0700 Subject: [Elecraft] 630 meter operation on the K4 In-Reply-To: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> Message-ID: <03B1D3F6-020B-4898-A2E4-CA320A0BD34C@wunderwood.org> Looking at the published specs? Frequency Range: 100 kHz - 54 MHz (VHF/UHF range to be determined*) https://elecraft.com/products/k4-transceiver wunder K6WRU Walter Underwood CM87wj http://observer.wunderwood.org/ (my blog) > On Sep 14, 2020, at 8:10 AM, Nigel Lemaire wrote: > > Wondering what capabilities the K4 will have on this (these) bands... > > 73 > Nigel > Wa6MSE > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 maccluer13 at gmail.com Mon Sep 14 12:19:11 2020 From: maccluer13 at gmail.com (Chuck MacCluer) Date: Mon, 14 Sep 2020 17:19:11 +0100 Subject: [Elecraft] Why predistortion? Message-ID: *The Elecraft K-Line already produces some of the cleanest, puresttransmit signals around.* Au contraire! I'm in a morning roundtable where four use K3Ss --- all four have an unacceptable (only 32 dB down) popup on the opposite sideband on certain peaks. It has always puzzled me why Elecraft, so obsessed with received signal excellence, would settle for such flawed transmitted signals. My Orion Mk II with predistortion is far cleaner even driving two BLF188s. From lmarion at mt.net Mon Sep 14 12:31:45 2020 From: lmarion at mt.net (lmarion) Date: Mon, 14 Sep 2020 10:31:45 -0600 Subject: [Elecraft] Why predistortion ? In-Reply-To: <000f01d68ab0$cdb95240$692bf6c0$@wjschmidt.com> References: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com><001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> <000f01d68ab0$cdb95240$692bf6c0$@wjschmidt.com> Message-ID: <2BA5779C7C414F47942B4E84A5EA0BAE@LeroyPC> DC to DC is used in video and RF frequency, over 50 years I know of,all the time to get away from 60hz and other design nonlinearities. Retired NIST DC to 18GHz lab tech AB7CE Roy -----Original Message----- From: Dr. William J. Schmidt Sent: Monday, September 14, 2020 10:05 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? Always tradeoffs to be made. Boosting 12V volts to 50V means some sort of converter that can add its own distortion products, plus expense and additional complexity (read that "reliability") and efficiency. There's no free lunch here. Dr. William J. Schmidt - K9HZ J68HZ email: bill at wjschmidt.com -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Charlie T Sent: Monday, September 14, 2020 6:30 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? Maybe I'm missing something here, but it would seem to me that if an FET linear amplifier running from 50 V or higher is considerably cleaner than one running from 12 V, that, for a high end rig, a simple step-up switching supply could solve the problem. But, that obviously adds to the cost so it IS somewhat of a conundrum. However, implementing the pre-distortion function IS probably a better long-term solution. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert Sent: Monday, September 14, 2020 12:43 AM To: Elecraft Reflector Subject: Re: [Elecraft] Why predistortion ? Of course, but that's a conscious choice by Elecraft and it does not result in the "cleanest, purest signals around." I give Elecraft tons of credit for the other measures they have take to produce good signals, which is why I own and will keep my upgraded K3 probably forever, but K8JHR simply was incorrect in his comment and it makes a difference when considering the expanding focus by folks like Sherwood and others to clean up the bands. When it comes to IMD, Elecraft is not one of the better players. The fact that that's by choice doesn't change anything. I suspect that 95+% of K3 rigs are used in portable/emergency situations less than 5% of the time. 73, Dave AB7E On 9/13/2020 7:14 PM, Wayne Burdick wrote: > 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. > > On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. > > 73, > Wayne > N6KR > > > >> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >> >> >> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >> >> Dave AB7E >> >> >> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 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 bill at wjschmidt.com -- This email has been checked for viruses by AVG. https://www.avg.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lmarion at mt.net From n6kr at elecraft.com Mon Sep 14 12:30:30 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 14 Sep 2020 09:30:30 -0700 Subject: [Elecraft] 630 meter operation on the K4 In-Reply-To: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> Message-ID: The K4 has receive capability in this band, and will transmit at the XV OUT jack well in excess of 0 dBm. (More like +7.) This should be suitable for use with an external amplifier. Wayne N6KR > On Sep 14, 2020, at 8:10 AM, Nigel Lemaire wrote: > > Wondering what capabilities the K4 will have on this (these) bands... > > 73 > Nigel > Wa6MSE > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w0sd at triotel.net Mon Sep 14 12:44:09 2020 From: w0sd at triotel.net (Ed Gray W0SD) Date: Mon, 14 Sep 2020 11:44:09 -0500 Subject: [Elecraft] K4 Second RX and VHF In-Reply-To: References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> Message-ID: <0eee0d4f-160e-9711-ed9f-b2df0424be39@triotel.net> I keep trying to find a picture for months of the inside of the K4 but I can not find one so I give up and will ask?? How is the second RX handled mechanically.? I just hate the box in the K3S for the second RX.? What a pain as you have to take it out to do things with the filters and all the cabling and routing to me is not good.? I hope this is all gone in the K4. Secondly how will VHF be handled in the K4?? Again I am not a big fan of the cabling involved in the K3S for VHF.? A plug is computer type slot, etc. sure seems like it would be better. Ed W0SD From n6kr at elecraft.com Mon Sep 14 13:00:36 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 14 Sep 2020 10:00:36 -0700 Subject: [Elecraft] K4 Second RX and VHF In-Reply-To: <0eee0d4f-160e-9711-ed9f-b2df0424be39@triotel.net> References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> <0eee0d4f-160e-9711-ed9f-b2df0424be39@triotel.net> Message-ID: <9F43313F-3B52-467E-AFF4-8F03B3374429@elecraft.com> The KRX4 option (which turns a K4 into a K4D) comes with two modules: a plug-in digital downconverter board, and a plug-in receiver board. One of them lives in the digital compartment and the other in the RF compartment, which are already shielded from each other, so no additional shielding is needed. The cabling requirements are simple (coax with very sturdy MCX plugs): one to bring RF into the receiver module, and another to get the filtered receiver output signal to the digital downconverter. The internal transverter module has its own built-in shield that doesn't have to be removed to do installation. But to ensure signal integrity it requires short, high-quality coax cables for its antenna (ANT4 on the rear panel) as well as for its I.F. input and output. 73, Wayne N6KR > On Sep 14, 2020, at 9:44 AM, Ed Gray W0SD wrote: > > I keep trying to find a picture for months of the inside of the K4 but I can not find one so I give up and will ask? How is the second RX handled mechanically. I just hate the box in the K3S for the second RX. What a pain as you have to take it out to do things with the filters and all the cabling and routing to me is not good. I hope this is all gone in the K4. > > Secondly how will VHF be handled in the K4? Again I am not a big fan of the cabling involved in the K3S for VHF. A plug is computer type slot, etc. sure seems like it would be better. > > Ed W0SD > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 bill at wjschmidt.com Mon Sep 14 13:10:13 2020 From: bill at wjschmidt.com (Dr. William J. Schmidt) Date: Mon, 14 Sep 2020 12:10:13 -0500 Subject: [Elecraft] Why predistortion ? In-Reply-To: <2BA5779C7C414F47942B4E84A5EA0BAE@LeroyPC> References: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com><001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> <000f01d68ab0$cdb95240$692bf6c0$@wjschmidt.com> <2BA5779C7C414F47942B4E84A5EA0BAE@LeroyPC> Message-ID: <002e01d68ab9$e9743be0$bc5cb3a0$@wjschmidt.com> I don't think anyone said it can't be done or hasn't been done before. It has. But you can't ignore the cost, reliability/ complexity, efficiency (power and signal) of the changes. For those of us that have actually had to design and implement circuit changes like this at the commercial level, it sounds trivial but that is simply not reality. Dr. William J. Schmidt - K9HZ J68HZ email:? bill at wjschmidt.com -----Original Message----- From: lmarion [mailto:lmarion at mt.net] Sent: Monday, September 14, 2020 11:32 AM To: Dr. William J. Schmidt ; elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? DC to DC is used in video and RF frequency, over 50 years I know of,all the time to get away from 60hz and other design nonlinearities. Retired NIST DC to 18GHz lab tech AB7CE Roy -----Original Message----- From: Dr. William J. Schmidt Sent: Monday, September 14, 2020 10:05 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? Always tradeoffs to be made. Boosting 12V volts to 50V means some sort of converter that can add its own distortion products, plus expense and additional complexity (read that "reliability") and efficiency. There's no free lunch here. Dr. William J. Schmidt - K9HZ J68HZ email: bill at wjschmidt.com -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Charlie T Sent: Monday, September 14, 2020 6:30 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? Maybe I'm missing something here, but it would seem to me that if an FET linear amplifier running from 50 V or higher is considerably cleaner than one running from 12 V, that, for a high end rig, a simple step-up switching supply could solve the problem. But, that obviously adds to the cost so it IS somewhat of a conundrum. However, implementing the pre-distortion function IS probably a better long-term solution. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert Sent: Monday, September 14, 2020 12:43 AM To: Elecraft Reflector Subject: Re: [Elecraft] Why predistortion ? Of course, but that's a conscious choice by Elecraft and it does not result in the "cleanest, purest signals around." I give Elecraft tons of credit for the other measures they have take to produce good signals, which is why I own and will keep my upgraded K3 probably forever, but K8JHR simply was incorrect in his comment and it makes a difference when considering the expanding focus by folks like Sherwood and others to clean up the bands. When it comes to IMD, Elecraft is not one of the better players. The fact that that's by choice doesn't change anything. I suspect that 95+% of K3 rigs are used in portable/emergency situations less than 5% of the time. 73, Dave AB7E On 9/13/2020 7:14 PM, Wayne Burdick wrote: > 12 volts is a severe constraint for MOSFET PAs. But, like a lot of > other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. > > On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. > > 73, > Wayne > N6KR > > > >> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >> >> >> I don't know where you got the idea that the K-Line produces the >> cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >> >> Dave AB7E >> >> >> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 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 bill at wjschmidt.com -- This email has been checked for viruses by AVG. https://www.avg.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to lmarion at mt.net -- This email has been checked for viruses by AVG. https://www.avg.com From elecraft at kb9kld.org Mon Sep 14 13:21:52 2020 From: elecraft at kb9kld.org (Jeff Uchitjil) Date: Mon, 14 Sep 2020 12:21:52 -0500 Subject: [Elecraft] K4 Second RX and Transverters Message-ID: I have sent this question to Elecraft support a few times over the last few weeks without a response, so I am giving it a try here. If I have a basic K4 and a 2M transverter attached, will I be able to monitor 6M or any other internal band off of the single main antenna port and also have a 2M transverter frequency on the 2nd RX? Or is the transverter considered a second antenna and would require the K4D with he second RX path to have the two bands at the same time? The transverter would use the 10M IF, but I am not sure how the pathing works if the transverter port would be an either or with the main antenna without a K4D. Jeff K9KLD From jim at jtmiller.com Mon Sep 14 13:25:59 2020 From: jim at jtmiller.com (Jim Miller) Date: Mon, 14 Sep 2020 13:25:59 -0400 Subject: [Elecraft] 630 meter operation on the K4 In-Reply-To: References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> Message-ID: Will the band be evident or will it need to be added? Will there be an appropriate XV offset to allow direct reading of the frequency? Thanks! jim ab3cv On Mon, Sep 14, 2020 at 12:35 PM Wayne Burdick wrote: > The K4 has receive capability in this band, and will transmit at the XV > OUT jack well in excess of 0 dBm. (More like +7.) This should be suitable > for use with an external amplifier. > > Wayne > N6KR > > > > On Sep 14, 2020, at 8:10 AM, Nigel Lemaire wrote: > > > > Wondering what capabilities the K4 will have on this (these) bands... > > > > 73 > > Nigel > > Wa6MSE > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 jim at jtmiller.com > From jim at jtmiller.com Mon Sep 14 13:26:40 2020 From: jim at jtmiller.com (Jim Miller) Date: Mon, 14 Sep 2020 13:26:40 -0400 Subject: [Elecraft] 630 meter operation on the K4 In-Reply-To: References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> Message-ID: And will the K4 need to be in "Test" mode as the K3 was required? jim ab3cv On Mon, Sep 14, 2020 at 1:25 PM Jim Miller wrote: > Will the band be evident or will it need to be added? Will there be an > appropriate XV offset to allow direct reading of the frequency? > > Thanks! > > jim ab3cv > > On Mon, Sep 14, 2020 at 12:35 PM Wayne Burdick wrote: > >> The K4 has receive capability in this band, and will transmit at the XV >> OUT jack well in excess of 0 dBm. (More like +7.) This should be suitable >> for use with an external amplifier. >> >> Wayne >> N6KR >> >> >> > On Sep 14, 2020, at 8:10 AM, Nigel Lemaire wrote: >> > >> > Wondering what capabilities the K4 will have on this (these) bands... >> > >> > 73 >> > Nigel >> > Wa6MSE >> > ______________________________________________________________ >> > Elecraft mailing list >> > Home: http://mailman.qth.net/mailman/listinfo/elecraft >> > Help: http://mailman.qth.net/mmfaq.htm >> > Post: mailto:Elecraft at mailman.qth.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 jim at jtmiller.com >> > From n6kr at elecraft.com Mon Sep 14 14:11:11 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 14 Sep 2020 11:11:11 -0700 Subject: [Elecraft] 630 meter operation on the K4 In-Reply-To: References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> Message-ID: <399F2309-E6A2-4B81-B95F-A1EAC9613FBB@elecraft.com> You can directly set the frequency to this range. There's no need for a transverter band. Test mode will not be needed. For receive purposes, you can use any of the five antenna jacks. I just measured the MDS at -135 dBm, which is more than satisfactory on on this band. For transmit you'll need to use XV OUT and an external amplifier. 73, Wayne N6KR > On Sep 14, 2020, at 10:26 AM, Jim Miller wrote: > > And will the K4 need to be in "Test" mode as the K3 was required? > > jim ab3cv > > > On Mon, Sep 14, 2020 at 1:25 PM Jim Miller wrote: > Will the band be evident or will it need to be added? Will there be an appropriate XV offset to allow direct reading of the frequency? > > Thanks! > > jim ab3cv > > On Mon, Sep 14, 2020 at 12:35 PM Wayne Burdick wrote: > The K4 has receive capability in this band, and will transmit at the XV OUT jack well in excess of 0 dBm. (More like +7.) This should be suitable for use with an external amplifier. > > Wayne > N6KR > > > > On Sep 14, 2020, at 8:10 AM, Nigel Lemaire wrote: > > > > Wondering what capabilities the K4 will have on this (these) bands... > > > > 73 > > Nigel > > Wa6MSE > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 jim at jtmiller.com From jim at jtmiller.com Mon Sep 14 14:14:54 2020 From: jim at jtmiller.com (Jim Miller) Date: Mon, 14 Sep 2020 14:14:54 -0400 Subject: [Elecraft] 630 meter operation on the K4 In-Reply-To: <399F2309-E6A2-4B81-B95F-A1EAC9613FBB@elecraft.com> References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> <399F2309-E6A2-4B81-B95F-A1EAC9613FBB@elecraft.com> Message-ID: Nice!! Thanks for the update! jim ab3cv On Mon, Sep 14, 2020 at 2:11 PM Wayne Burdick wrote: > You can directly set the frequency to this range. There's no need for a > transverter band. > > Test mode will not be needed. > > For receive purposes, you can use any of the five antenna jacks. I just > measured the MDS at -135 dBm, which is more than satisfactory on on this > band. > > For transmit you'll need to use XV OUT and an external amplifier. > > 73, > Wayne > N6KR > > > > On Sep 14, 2020, at 10:26 AM, Jim Miller wrote: > > > > And will the K4 need to be in "Test" mode as the K3 was required? > > > > jim ab3cv > > > > > > On Mon, Sep 14, 2020 at 1:25 PM Jim Miller wrote: > > Will the band be evident or will it need to be added? Will there be an > appropriate XV offset to allow direct reading of the frequency? > > > > Thanks! > > > > jim ab3cv > > > > On Mon, Sep 14, 2020 at 12:35 PM Wayne Burdick > wrote: > > The K4 has receive capability in this band, and will transmit at the XV > OUT jack well in excess of 0 dBm. (More like +7.) This should be suitable > for use with an external amplifier. > > > > Wayne > > N6KR > > > > > > > On Sep 14, 2020, at 8:10 AM, Nigel Lemaire wrote: > > > > > > Wondering what capabilities the K4 will have on this (these) bands... > > > > > > 73 > > > Nigel > > > Wa6MSE > > > ______________________________________________________________ > > > Elecraft mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: http://mailman.qth.net/mmfaq.htm > > > Post: mailto:Elecraft at mailman.qth.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 jim at jtmiller.com > > From w8fn at windstream.net Mon Sep 14 14:22:23 2020 From: w8fn at windstream.net (Randy Farmer) Date: Mon, 14 Sep 2020 14:22:23 -0400 Subject: [Elecraft] K4 Second RX and VHF In-Reply-To: <9F43313F-3B52-467E-AFF4-8F03B3374429@elecraft.com> References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> <0eee0d4f-160e-9711-ed9f-b2df0424be39@triotel.net> <9F43313F-3B52-467E-AFF4-8F03B3374429@elecraft.com> Message-ID: The demise of TMP connectors? Hooray! 73... Randy, W8FN On 9/14/2020 1:00 PM, Wayne Burdick wrote: > The cabling requirements are simple (coax_*with very sturdy MCX plugs*_): one to bring RF into the receiver module, and another to get the filtered receiver output signal to the digital downconverter. From n6kr at elecraft.com Mon Sep 14 14:27:01 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 14 Sep 2020 11:27:01 -0700 Subject: [Elecraft] K4 Second RX and Transverters In-Reply-To: References: Message-ID: > On Sep 14, 2020, at 10:21 AM, Jeff Uchitjil wrote: > > I have sent this question to Elecraft support a few times over the last few weeks without a response, so I am giving it a try here. > > If I have a basic K4 and a 2M transverter attached, will I be able to monitor 6M or any other internal band off of the single main antenna port and also have a 2M transverter frequency on the 2nd RX? Hi Jeff, If you're using an external transverter, you'd connect it to the XV IN and XV OUT jacks. Let's say the IF is 28 MHz. You could put one receiver on this IF (with a display automatically translating this to 144 MHz), while the other receiver is on an HF-6 meter band. A K4D is needed to accomplish this dual-receive/different bands scenario. The two receivers will clearly need to use different antenna inputs, implying two A-to-D converter modules. The K4D also has a second full set of band-pass filters, preamps, and attenuators, optimizing performance on both receivers. Wayne N6KR From n6kr at elecraft.com Mon Sep 14 14:28:52 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 14 Sep 2020 11:28:52 -0700 Subject: [Elecraft] 630 meter operation on the K4 In-Reply-To: References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> <399F2309-E6A2-4B81-B95F-A1EAC9613FBB@elecraft.com> Message-ID: By the way, the K4 provides a way to do direct comparative sensitivity measurements for both receivers. A persistent display in relative dB can be shown. This makes things like MDS testing very easy. 73, Wayne N6KR > On Sep 14, 2020, at 11:14 AM, Jim Miller wrote: > > Nice!! > > Thanks for the update! > > jim ab3cv > > On Mon, Sep 14, 2020 at 2:11 PM Wayne Burdick wrote: > You can directly set the frequency to this range. There's no need for a transverter band. > > Test mode will not be needed. > > For receive purposes, you can use any of the five antenna jacks. I just measured the MDS at -135 dBm, which is more than satisfactory on on this band. > > For transmit you'll need to use XV OUT and an external amplifier. > > 73, > Wayne > N6KR > > > > On Sep 14, 2020, at 10:26 AM, Jim Miller wrote: > > > > And will the K4 need to be in "Test" mode as the K3 was required? > > > > jim ab3cv > > > > > > On Mon, Sep 14, 2020 at 1:25 PM Jim Miller wrote: > > Will the band be evident or will it need to be added? Will there be an appropriate XV offset to allow direct reading of the frequency? > > > > Thanks! > > > > jim ab3cv > > > > On Mon, Sep 14, 2020 at 12:35 PM Wayne Burdick wrote: > > The K4 has receive capability in this band, and will transmit at the XV OUT jack well in excess of 0 dBm. (More like +7.) This should be suitable for use with an external amplifier. > > > > Wayne > > N6KR > > > > > > > On Sep 14, 2020, at 8:10 AM, Nigel Lemaire wrote: > > > > > > Wondering what capabilities the K4 will have on this (these) bands... > > > > > > 73 > > > Nigel > > > Wa6MSE > > > ______________________________________________________________ > > > Elecraft mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: http://mailman.qth.net/mmfaq.htm > > > Post: mailto:Elecraft at mailman.qth.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 jim at jtmiller.com > From wes_n7ws at triconet.org Mon Sep 14 14:32:25 2020 From: wes_n7ws at triconet.org (Wes) Date: Mon, 14 Sep 2020 11:32:25 -0700 Subject: [Elecraft] K4 Second RX and VHF In-Reply-To: References: <41ede123-acb7-0587-03f5-cb1910a1e24c@q.com> <0eee0d4f-160e-9711-ed 9f-b2df0424be39@triotel.net> <9F43313F-3B52-467E-AFF4-8F03B3374429@elecraft.com> Message-ID: <181e8a22-06ee-4530-b17a-8f38f1b57be0@triconet.org> Amen.? RIP On 9/14/2020 11:22 AM, Randy Farmer wrote: > The demise of TMP connectors? Hooray! > > 73... > Randy, W8FN > > On 9/14/2020 1:00 PM, Wayne Burdick wrote: >> The cabling requirements are simple (coax_*with very sturdy MCX plugs*_): one >> to bring RF into the receiver module, and another to get the filtered >> receiver output signal to the digital downconverter. > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to wes_n7ws at triconet.org From ccolemanmd at gmail.com Mon Sep 14 16:10:47 2020 From: ccolemanmd at gmail.com (ccolemanmd at gmail.com) Date: Mon, 14 Sep 2020 15:10:47 -0500 Subject: [Elecraft] Elecraft Digest, Vol 197, Issue 18 In-Reply-To: References: Message-ID: <4186E660-6368-4580-9389-3E6E2FB80CA2@gmail.com> Sent from my iPhone > On Sep 14, 2020, at 11:03 AM, 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. Why predistortion ? (JR) > 2. Re: Why predistortion ? (Wayne Burdick) > 3. Re: Why predistortion ? (E.H. Russell) > 4. Re: Why predistortion ? (Randy Farmer) > 5. KAT500: Fails to tune, and shows 3:1 on good antenna on 18 > MHz. (Dave Cole) > 6. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on > 18 MHz. (Dick Dievendorff) > 7. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on > 18 MHz. (Ken Winterling) > 8. Why predistortion ? (John Harper) > 9. Re: Why predistortion ? (Wes) > 10. Re: Why predistortion ? (W2xj) > 11. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on > 18 MHz. (Dave Cole) > 12. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on > 18 MHz. (Dave Cole) > 13. Re: Why predistortion ? (David Gilbert) > 14. Re: Why predistortion ? (Bill Frantz) > 15. Re: Why predistortion ? (Wayne Burdick) > 16. Re: Why predistortion ? (Jim Brown) > 17. Re: Why predistortion ? (Jim Brown) > 18. Re: Why predistortion ? (David Gilbert) > 19. Elecraft CW Net Report (kevinr) > 20. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on > 18 MHz. (Dave Cole) > 21. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on > 18 MHz. (Ken Winterling) > 22. 630 meter operation on the K4 (Nigel Lemaire) > 23. Re: Why predistortion ? (Charlie T) > 24. Re: Why predistortion ? (Charlie T) > 25. Re: Why predistortion ? (Dr. William J. Schmidt) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Sun, 13 Sep 2020 17:32:21 -0400 > From: JR > To: Elecraft at mailman.qth.net > Subject: [Elecraft] Why predistortion ? > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > Why are so many ops obsessed with predistortion? > > The Elecraft K-Line already produces some of the cleanest, purest > transmit signals around.?? Do we need predistortion ?? If so, why, and > how much better is it than what we already have?? Should I wait to buy a > new rig until that is available? > > Thanks and Happy Trails to all.?? K8JHR > _________________________________ > > > ------------------------------ > > Message: 2 > Date: Sun, 13 Sep 2020 15:03:00 -0700 > From: Wayne Burdick > To: JR > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <93A9DF67-0B33-4FBF-88FC-226D98D271A2 at elecraft.com> > Content-Type: text/plain; charset=utf-8 > > Hi JR, > > Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. > > To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. > > A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. > > Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. > > Wayne, > N6KR > > ---- > elecraft.com > >> On Sep 13, 2020, at 2:34 PM, JR wrote: >> >> ?Why are so many ops obsessed with predistortion? >> >> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >> >> Thanks and Happy Trails to all. K8JHR >> _________________________________ >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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: 3 > Date: Sun, 13 Sep 2020 18:41:52 -0400 > From: "E.H. Russell" > To: "'Wayne Burdick'" , "'JR'" > > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <006301d68a1f$13ca1b80$3b5e5280$@qrv.com> > Content-Type: text/plain; charset="utf-8" > > Well put. > > TKS, > 73 ED W2RF > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Wayne Burdick > Sent: Sunday, September 13, 2020 6:03 PM > To: JR > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > > Hi JR, > > Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. > > To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. > > A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. > > Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. > > Wayne, > N6KR > > ---- > elecraft.com > >> On Sep 13, 2020, at 2:34 PM, JR wrote: >> >> ?Why are so many ops obsessed with predistortion? >> >> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >> >> Thanks and Happy Trails to all. K8JHR >> _________________________________ >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 ehr at qrv.com > > > > ------------------------------ > > Message: 4 > Date: Sun, 13 Sep 2020 18:48:17 -0400 > From: Randy Farmer > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <61bfbc52-60e4-aef8-4869-b07720bb16c6 at windstream.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > I can testify to the effectiveness of predistortion techniques from my 5 > years or so as a CDMA Cellular Base Station engineer with Motorola. The > first generation of CDMA transmitters had a very specific "spectral > mask" that had to be certified. As I recall, the transmitter output that > met the Spectral Mask requirements of something like -60 dBc outside of > the channel bandwidth showed up with essentially vertical sides (and a > very flat top) on a spectrum analyzer. Obtaining this performance was > neither cheap nor easy, and the associated testing was pretty stringent > as well. Meeting the specs demanded very sophisticated predistortion > techniques. Be glad that conventional SSB and the fairly simple > waveforms used in amateur digital comms don't require too much dynamic > headroom. The first generation CDMA waveform had a roughly 10:1, or 20dB > peak-to-average power ratio. This meant that the transmitters we > designed to produce 20W average power were actually capable of 200W > continuous output power and still met the spectral mask IMD > requirements. Putting multiple carriers through the PA required either > higher power capability or derating the power output for each individual > carrier. I no longer work in the industry, so I don't know what the > current generation of signals requires, but with the greater bandwidths > and more complex modulation schemes used now you can bet the > requirements, and therefore the transmitter design challenge, didn't get > any easier. > > 73... > Randy, W8FN > >> On 9/13/2020 6:03 PM, Wayne Burdick wrote: >> Hi JR, >> >> Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. >> >> To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. >> >> A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. >> >> Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. >> >> Wayne, >> N6KR >> >> ---- >> elecraft.com > > > ------------------------------ > > Message: 5 > Date: Sun, 13 Sep 2020 15:48:40 -0700 > From: Dave Cole > To: elecraft at mailman.qth.net > Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good > antenna on 18 MHz. > Message-ID: <113567fc-be02-24b2-6259-f928e7f62555 at nk7z.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > Hello, > My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. > Antenna is a single feedline to a 6BTV, and an analyzer says all is good > at low power. At 100 watts, all seems good. > > All other bands seem OK at high power. > > Question: When in bypass, is the entire tuner bypassed? > Question: When turned off is the tuner bypassed? Which antenna is default? > -- > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > > > ------------------------------ > > Message: 6 > Date: Sun, 13 Sep 2020 15:57:03 -0700 > From: Dick Dievendorff > To: Dave Cole > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good > antenna on 18 MHz. > Message-ID: > Content-Type: text/plain; charset=utf-8 > > When unpowered the KAT500 is bypassed, ANT1. > > When the ATU is in mode BYP, yes, it?s bypassed. > > 73 de Dick, K6KR > >> On Sep 13, 2020, at 15:52, Dave Cole wrote: >> >> ?Hello, >> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. Antenna is a single feedline to a 6BTV, and an analyzer says all is good at low power. At 100 watts, all seems good. >> >> All other bands seem OK at high power. >> >> Question: When in bypass, is the entire tuner bypassed? >> Question: When turned off is the tuner bypassed? Which antenna is default? >> -- >> 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 dick at elecraft.com > > > ------------------------------ > > Message: 7 > Date: Sun, 13 Sep 2020 19:24:24 -0400 > From: Ken Winterling > To: Dick Dievendorff > Cc: Elecraft Reflector > Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good > antenna on 18 MHz. > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > When you have issues like this the best test is to use a known good dummy > load. That removes the antenna system from the equation. See what happens > on 18mHz when transmitting into the summy load. > > Ken > WA2LBI > > > > > >> On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff wrote: >> >> When unpowered the KAT500 is bypassed, ANT1. >> >> When the ATU is in mode BYP, yes, it?s bypassed. >> >> 73 de Dick, K6KR >> >>>> On Sep 13, 2020, at 15:52, Dave Cole wrote: >>> >>> ?Hello, >>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. >> Antenna is a single feedline to a 6BTV, and an analyzer says all is good at >> low power. At 100 watts, all seems good. >>> >>> All other bands seem OK at high power. >>> >>> Question: When in bypass, is the entire tuner bypassed? >>> Question: When turned off is the tuner bypassed? Which antenna is >> default? >>> -- >>> 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 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 wa2lbi at gmail.com > > > ------------------------------ > > Message: 8 > Date: Sun, 13 Sep 2020 18:40:01 -0500 > From: John Harper > To: Elecraft list > Subject: [Elecraft] Why predistortion ? > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > Here's a demonstration of predistortion in use (relevant part starts at the > 10-minute point): > https://www.youtube.com/watch?v=0adHZOTqTlQ > > John AE5X > https://ae5x.blogspot.com > > >> Why are so many ops obsessed with predistortion? > > > ------------------------------ > > Message: 9 > Date: Sun, 13 Sep 2020 17:20:39 -0700 > From: Wes > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <445dca7d-bbc8-be0f-bb88-70ccc51e88b8 at triconet.org> > Content-Type: text/plain; charset=utf-8; format=flowed > > You're kidding, right? > > Wes? N7WS > > >> On 9/13/2020 2:32 PM, JR wrote: >> The Elecraft K-Line already produces some of the cleanest, purest transmit >> signals around.... >> >> Thanks and Happy Trails to all.?? K8JHR > > > > ------------------------------ > > Message: 10 > Date: Sun, 13 Sep 2020 20:24:07 -0400 > From: W2xj > To: Wayne Burdick > Cc: elecraft at mailman.qth.net, JR > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <267B2358-25D4-4DEF-B624-50C4C830FA86 at w2xj.net> > Content-Type: text/plain; charset=utf-8 > > wayne, > > After you have the K4 fully put to bed, for your next project you might want to consider an amp that is directly driven by an I/Q stream. The amplifier will be much more efficient (less power consumption) and you start out with less IMD before any pre-distortion. > > Sent from my iPad > >> On Sep 13, 2020, at 6:05 PM, Wayne Burdick wrote: >> >> ?Hi JR, >> >> Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. >> >> To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. >> >> A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. >> >> Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. >> >> Wayne, >> N6KR >> >> ---- >> elecraft.com >> >>>> On Sep 13, 2020, at 2:34 PM, JR wrote: >>> >>> ?Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >>> _________________________________ >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 w2xj at w2xj.net > > > > ------------------------------ > > Message: 11 > Date: Sun, 13 Sep 2020 17:53:36 -0700 > From: Dave Cole > To: Dick Dievendorff > Cc: Elecraft at mailman.qth.net > Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good > antenna on 18 MHz. > Message-ID: <71d26f37-2a9a-5b6d-1255-f720f0e85869 at nk7z.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > That helps triage the issue... Something in my antenna must have gone > wonky... I am using a 6BTV, with the 18 Meter add on kit, so the same > feedpoint is used for all bands, and they are fine... I was worried it > was the tuner. I'll go check the antenna out tonight, and in the > morning as well... THANK YOU! Knowing the tuner is bypassed in Bypass, > helps... Next is to put a dummy load on the tuner... > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > >> On 9/13/20 3:57 PM, Dick Dievendorff wrote: >> When unpowered the KAT500 is bypassed, ANT1. >> >> When the ATU is in mode BYP, yes, it?s bypassed. >> >> 73 de Dick, K6KR >> >>>> On Sep 13, 2020, at 15:52, Dave Cole wrote: >>> >>> ?Hello, >>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. Antenna is a single feedline to a 6BTV, and an analyzer says all is good at low power. At 100 watts, all seems good. >>> >>> All other bands seem OK at high power. >>> >>> Question: When in bypass, is the entire tuner bypassed? >>> Question: When turned off is the tuner bypassed? Which antenna is default? >>> -- >>> 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 dick at elecraft.com > > > ------------------------------ > > Message: 12 > Date: Sun, 13 Sep 2020 17:54:02 -0700 > From: Dave Cole > To: Ken Winterling , Dick Dievendorff > > Cc: Elecraft Reflector > Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good > antenna on 18 MHz. > Message-ID: <1cb524e9-b29e-18c6-f2e0-10d9ddda6777 at nk7z.net> > Content-Type: text/plain; charset=utf-8; format=flowed > > Thanks Ken... That is the next step... Now I need to locate one... > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > >> On 9/13/20 4:24 PM, Ken Winterling wrote: >> When you have issues like this the best test is to use a known good >> dummy load. That removes the antenna system from the equation. See what >> happens on 18mHz when transmitting into the summy load. >> >> Ken >> WA2LBI >> >> >> >> >> On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff > > wrote: >> >> When unpowered the KAT500 is bypassed, ANT1. >> >> When the ATU is in mode BYP, yes, it?s bypassed. >> >> 73 de Dick, K6KR >> >>> On Sep 13, 2020, at 15:52, Dave Cole > > wrote: >>> >>> ?Hello, >>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., >> only. Antenna is a single feedline to a 6BTV, and an analyzer says >> all is good at low power.? At 100 watts, all seems good. >>> >>> All other bands seem OK at high power. >>> >>> Question:? When in bypass, is the entire tuner bypassed? >>> Question:? When turned off is the tuner bypassed?? Which antenna >> is default? >>> -- >>> 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 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 wa2lbi at gmail.com >> > > > ------------------------------ > > Message: 13 > Date: Sun, 13 Sep 2020 18:50:41 -0700 > From: David Gilbert > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > > I don't know where you got the idea that the K-Line produces the > cleanest signals.? As several people have pointed out, because of the 12 > volt finals the transmit IMD performance of the existing K-line is > relatively poor. > > Dave?? AB7E > > >> On 9/13/2020 2:32 PM, JR wrote: >> Why are so many ops obsessed with predistortion? >> >> The Elecraft K-Line already produces some of the cleanest, purest >> transmit signals around.?? Do we need predistortion ?? If so, why, and >> how much better is it than what we already have?? Should I wait to buy >> a new rig until that is available? >> >> Thanks and Happy Trails to all.?? K8JHR > > > > ------------------------------ > > Message: 14 > Date: Sun, 13 Sep 2020 21:59:13 -0400 > From: Bill Frantz > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: > > > Content-Type: text/plain; charset=UTF-8; format=flowed > > Wayne is right, it's the right thing to do. And we amateurs try > to produce the best signals we can. (Ignore the wide CW signals > during contests. :-) ) > > But the value will also show up during multi-op situations like > running 14A during field day. Field day is much more fun if > everyone gets a chance to operate. > > 73 Bill AE6JV > > >> On 9/13/20 at 6:03 PM, n6kr at elecraft.com (Wayne Burdick) wrote: >> >> Predistortion, correctly applied, can reduce interference >> between adjacent stations on a crowded band. This is a factor >> at least some fraction of the time during typical amateur radio >> use. Beyond that, the motivation for a ?pure? signal >> exemplifies the amateur spirit of cooperation, and is an >> example of keeping the hobby on the forefront of electrical design. > > ----------------------------------------------------------------------- > Bill Frantz | Privacy is dead, get over | Periwinkle > (408)348-7900 | it. | 150 Rivermead > Rd #235 > www.pwpconsult.com | - Scott McNealy (1999) | Peterborough, > NH 03458 > > > > ------------------------------ > > Message: 15 > Date: Sun, 13 Sep 2020 19:14:52 -0700 > From: Wayne Burdick > To: David Gilbert > Cc: Elecraft Reflector > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7 at elecraft.com> > Content-Type: text/plain; charset=us-ascii > > 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. > > On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. > > 73, > Wayne > N6KR > > > >> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >> >> >> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >> >> Dave AB7E >> >> >>> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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: 16 > Date: Sun, 13 Sep 2020 21:14:47 -0700 > From: Jim Brown > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: > <3b519632-c9d4-fc1c-aa1d-dd61280309eb at audiosystemsgroup.com> > Content-Type: text/plain; charset=utf-8; format=flowed > >> On 9/13/2020 2:32 PM, JR wrote: >> The Elecraft K-Line already produces some of the cleanest, purest >> transmit signals around.?? Do we need predistortion ? > > If you care about a clean signal, YES! If you don't mind being a bad > neighbor, no. > > 73, Jim K9YC > > > ------------------------------ > > Message: 17 > Date: Sun, 13 Sep 2020 21:25:46 -0700 > From: Jim Brown > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: > <982c6d3b-e290-2211-62c9-101b470408aa at audiosystemsgroup.com> > Content-Type: text/plain; charset=utf-8; format=flowed > >> On 9/13/2020 3:03 PM, Wayne Burdick wrote: >> Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. > > I hope that this feature will be implemented for CW as well. CW is 100% > AM of a carrier by rectangular pulses, so any distortion in the transmit > chain results in clicks. Elecraft pioneered very clean keying waveforms; > it would be unfortunate for that to be lost with IMD in the power stages. > > 73, Jim K9YC > > > ------------------------------ > > Message: 18 > Date: Sun, 13 Sep 2020 21:43:21 -0700 > From: David Gilbert > To: Elecraft Reflector > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <90ad2b50-de2b-1621-3e8b-05c7c3243a14 at gmail.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > > > Of course, but that's a conscious choice by Elecraft and it does not > result in the "cleanest, purest signals around."? I give Elecraft tons > of credit for the other measures they have take to produce good signals, > which is why I own and will keep my upgraded K3 probably forever, but > K8JHR simply was incorrect in his comment and it makes a difference when > considering the expanding focus by folks like Sherwood and others to > clean up the bands.? When it comes to IMD, Elecraft is not one of the > better players.? The fact that that's by choice doesn't change > anything.? I suspect that 95+% of K3 rigs are used in portable/emergency > situations less than 5% of the time. > > 73, > Dave?? AB7E > > > >> On 9/13/2020 7:14 PM, Wayne Burdick wrote: >> 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. >> >> On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. >> >> 73, >> Wayne >> N6KR >> >> >> >>>> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >>> >>> >>> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >>> >>> Dave AB7E >>> >>> >>> On 9/13/2020 2:32 PM, JR wrote: >>>> Why are so many ops obsessed with predistortion? >>>> >>>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>>> >>>> Thanks and Happy Trails to all. K8JHR >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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, 13 Sep 2020 21:51:33 -0700 > From: kevinr > To: Elecraft Reflector > Subject: [Elecraft] Elecraft CW Net Report > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > Good Evening, > > ?? Signals were stronger than last week with less noise on both bands.? > QSB was a little higher on forty meters.? Most of you reported very nice > weather.? Even out west the weather is not too bad once you allow for > all the smoke.? It certainly makes working outside difficult.? Staying > inside helps but I still have a stuffy nose and a mild headache.? My > begonias don't like the smoke either, they are rapidly losing blossoms. > > ?? The forty meter net improves as the days grow shorter.? I was able > to reach Texas again.? Hopefully there will be some new sunspots this > week.? That would help my reach. > > > ? On 14050.8 kHz at 2200z: > > W0CZ - Ken - ND > > NO8V - John - MI > > AB9V - Mike - IN > > K6XK - Roy - IA > > > ? On 7047.5 kHz at 0045z: > > W0CZ - Ken - ND > > K0DTJ - Brian - CA > > K6PJV - Dale - CA > > W8OV - Dave - TX > > > I plan to work inside again this week.? I need to collect wood but > exercise in these smoky conditions makes the headaches worse. A week of > rain starting tomorrow night will help.? Maybe they will slow the fires > in the Cascades and clear our skies.? 2020 has been quite a year.? I'm > waiting for January so we can start over. > > ?? Until next week 73, > > ????? Kevin.? KD5ONS > > > - > > > > cutting angle = degrees(atan2(twist, PI() * caliber)) > > > > ------------------------------ > > Message: 20 > Date: Mon, 14 Sep 2020 04:52:03 -0700 > From: Dave Cole > To: Elecraft Reflector > Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good > antenna on 18 MHz. > Message-ID: > Content-Type: text/plain; charset=utf-8; format=flowed > > Hi ken, > Added the dummy, no problems, so it is the antenna... Also, given it is > a 6BTV with the 18 meter add on, and all other bands work, it is not the > feedline... > > This makes it simple to fix! It is either a break with the laws of > physics as we understand them today-- or a connection has come loose. > Given there are only two connections... I suspect it will be a simple fix. > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist > ARRL Asst. Director, NW Division, Technical Resources > >> On 9/13/20 4:24 PM, Ken Winterling wrote: >> When you have issues like this the best test is to use a known good >> dummy load. That removes the antenna system from the equation. See what >> happens on 18mHz when transmitting into the summy load. >> >> Ken >> WA2LBI >> >> >> >> >> On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff > > wrote: >> >> When unpowered the KAT500 is bypassed, ANT1. >> >> When the ATU is in mode BYP, yes, it?s bypassed. >> >> 73 de Dick, K6KR >> >>> On Sep 13, 2020, at 15:52, Dave Cole > > wrote: >>> >>> ?Hello, >>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., >> only. Antenna is a single feedline to a 6BTV, and an analyzer says >> all is good at low power.? At 100 watts, all seems good. >>> >>> All other bands seem OK at high power. >>> >>> Question:? When in bypass, is the entire tuner bypassed? >>> Question:? When turned off is the tuner bypassed?? Which antenna >> is default? >>> -- >>> 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 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 wa2lbi at gmail.com >> > > > ------------------------------ > > Message: 21 > Date: Mon, 14 Sep 2020 07:54:32 -0400 > From: Ken Winterling > To: Dave Cole > Cc: Elecraft Reflector > Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good > antenna on 18 MHz. > Message-ID: > > Content-Type: text/plain; charset="UTF-8" > > GL! > > Ken > WA2LBI > > > > > >> On Mon, Sep 14, 2020 at 7:53 AM Dave Cole wrote: >> >> Hi ken, >> Added the dummy, no problems, so it is the antenna... Also, given it is >> a 6BTV with the 18 meter add on, and all other bands work, it is not the >> feedline... >> >> This makes it simple to fix! It is either a break with the laws of >> physics as we understand them today-- or a connection has come loose. >> Given there are only two connections... I suspect it will be a simple fix. >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >>> On 9/13/20 4:24 PM, Ken Winterling wrote: >>> When you have issues like this the best test is to use a known good >>> dummy load. That removes the antenna system from the equation. See what >>> happens on 18mHz when transmitting into the summy load. >>> >>> Ken >>> WA2LBI >>> >>> >>> >>> >>> On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff >> > wrote: >>> >>> When unpowered the KAT500 is bypassed, ANT1. >>> >>> When the ATU is in mode BYP, yes, it?s bypassed. >>> >>> 73 de Dick, K6KR >>> >>>> On Sep 13, 2020, at 15:52, Dave Cole >> > wrote: >>>> >>>> ?Hello, >>>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., >>> only. Antenna is a single feedline to a 6BTV, and an analyzer says >>> all is good at low power. At 100 watts, all seems good. >>>> >>>> All other bands seem OK at high power. >>>> >>>> Question: When in bypass, is the entire tuner bypassed? >>>> Question: When turned off is the tuner bypassed? Which antenna >>> is default? >>>> -- >>>> 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 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 > Elecraft at mailman.qth.net> >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to wa2lbi at gmail.com >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to wa2lbi at gmail.com > > > ------------------------------ > > Message: 22 > Date: Mon, 14 Sep 2020 08:10:55 -0700 > From: Nigel Lemaire > To: elecraft at mailman.qth.net > Subject: [Elecraft] 630 meter operation on the K4 > Message-ID: <41ede123-acb7-0587-03f5-cb1910a1e24c at q.com> > Content-Type: text/plain; charset=utf-8; format=flowed > > Wondering what capabilities the K4 will have on this (these) bands... > > 73 > Nigel > Wa6MSE > > > ------------------------------ > > Message: 23 > Date: Sun, 13 Sep 2020 22:42:02 -0400 > From: "Charlie T" > To: > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <007401d68a40$a4157ce0$ec4076a0$@erols.com> > Content-Type: text/plain; charset="UTF-8" > > According to Rob Sherwood, the Collins 32S-3 produces the cleanest SSB signal on the air of any commercial amateur radio transmitters. > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert > Sent: Sunday, September 13, 2020 9:51 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > > > I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. > > Dave AB7E > > >> On 9/13/2020 2:32 PM, JR wrote: >> Why are so many ops obsessed with predistortion? >> >> The Elecraft K-Line already produces some of the cleanest, purest >> transmit signals around. Do we need predistortion ? If so, why, and >> how much better is it than what we already have? Should I wait to buy >> a new rig until that is available? >> >> Thanks and Happy Trails to all. K8JHR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 > > > > ------------------------------ > > Message: 24 > Date: Mon, 14 Sep 2020 07:29:48 -0400 > From: "Charlie T" > To: > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> > Content-Type: text/plain; charset="UTF-8" > > Maybe I'm missing something here, but it would seem to me that if an FET linear amplifier running from 50 V or higher is considerably cleaner than one running from 12 V, that, for a high end rig, a simple step-up switching supply could solve the problem. But, that obviously adds to the cost so it IS somewhat of a conundrum. > > However, implementing the pre-distortion function IS probably a better long-term solution. > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert > Sent: Monday, September 14, 2020 12:43 AM > To: Elecraft Reflector > Subject: Re: [Elecraft] Why predistortion ? > > > > Of course, but that's a conscious choice by Elecraft and it does not result in the "cleanest, purest signals around." I give Elecraft tons of credit for the other measures they have take to produce good signals, which is why I own and will keep my upgraded K3 probably forever, but K8JHR simply was incorrect in his comment and it makes a difference when considering the expanding focus by folks like Sherwood and others to clean up the bands. When it comes to IMD, Elecraft is not one of the better players. The fact that that's by choice doesn't change anything. I suspect that 95+% of K3 rigs are used in portable/emergency situations less than 5% of the time. > > 73, > Dave AB7E > > > >> On 9/13/2020 7:14 PM, Wayne Burdick wrote: >> 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. >> >> On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. >> >> 73, >> Wayne >> N6KR >> >> >> >>>> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >>> >>> >>> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >>> >>> Dave AB7E >>> >>> >>> On 9/13/2020 2:32 PM, JR wrote: >>>> Why are so many ops obsessed with predistortion? >>>> >>>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>>> >>>> Thanks and Happy Trails to all. K8JHR >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 pincon at erols.com > > > > ------------------------------ > > Message: 25 > Date: Mon, 14 Sep 2020 11:00:25 -0500 > From: "Dr. William J. Schmidt" > To: "'Elecraft List'" > Subject: Re: [Elecraft] Why predistortion ? > Message-ID: <000c01d68ab0$2937ac80$7ba70580$@wjschmidt.com> > Content-Type: text/plain; charset="iso-8859-1" > > 6AU6 - 6CL6 - 6146A trio is a very and associated circuitry produces some of > the lowest distortion products when run at the right conditions (voltages, > etc). Note at 75 watts the 6146 is in its sweet spot. > > > Dr. William J. Schmidt - K9HZ > > > email:? bill at wjschmidt.com > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Charlie T > Sent: Sunday, September 13, 2020 9:42 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > > According to Rob Sherwood, the Collins 32S-3 produces the cleanest SSB > signal on the air of any commercial amateur radio transmitters. > > 73, Charlie k3ICH > > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On > Behalf Of David Gilbert > Sent: Sunday, September 13, 2020 9:51 PM > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Why predistortion ? > > > I don't know where you got the idea that the K-Line produces the cleanest > signals. As several people have pointed out, because of the 12 volt finals > the transmit IMD performance of the existing K-line is relatively poor. > > Dave AB7E > > >> On 9/13/2020 2:32 PM, JR wrote: >> Why are so many ops obsessed with predistortion? >> >> The Elecraft K-Line already produces some of the cleanest, purest >> transmit signals around. Do we need predistortion ? If so, why, and >> how much better is it than what we already have? Should I wait to buy >> a new rig until that is available? >> >> Thanks and Happy Trails to all. K8JHR > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 bill at wjschmidt.com > > > -- > This email has been checked for viruses by AVG. > https://www.avg.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 197, Issue 18 > ***************************************** From glcazzola at alice.it Mon Sep 14 16:42:14 2020 From: glcazzola at alice.it (IK4EWX) Date: Mon, 14 Sep 2020 13:42:14 -0700 (MST) Subject: [Elecraft] Why predistortion ? In-Reply-To: <002e01d68ab9$e9743be0$bc5cb3a0$@wjschmidt.com> References: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7@elecraft.com> <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com> <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> <000f01d68ab0$cdb95240$692bf6c0$@wjschmidt.com> <2BA5779C7C414F47942B4E84A5EA0BAE@LeroyPC> <002e01d68ab9$e9743be0$bc5cb3a0$@wjschmidt.com> Message-ID: <1600116134420-0.post@n2.nabble.com> Why it seem so difficult thing for the great Elecraft rigs? Apache Labs Anan rigs, from 2.700 to 4.400 $, all have predistortion included. Are their power supply with higher voltages than the 12V of Elecraft? Ian Ik4EWX -- Sent from: http://elecraft.365791.n2.nabble.com/ From g4gnx at g4gnx.com Mon Sep 14 16:42:52 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Mon, 14 Sep 2020 20:42:52 +0000 Subject: [Elecraft] Elecraft Digest, Vol 197, Issue 18 In-Reply-To: <4186E660-6368-4580-9389-3E6E2FB80CA2@gmail.com> References: <4186E660-6368-4580-9389-3E6E2FB80CA2@gmail.com> Message-ID: For goodness sake, please trim your posts!!! ;-( 73, Alan. G4GNX ------ Original Message ------ From: ccolemanmd at gmail.com To: elecraft at mailman.qth.net Sent: 14/09/2020 21:10:47 Subject: Re: [Elecraft] Elecraft Digest, Vol 197, Issue 18 > > >Sent from my iPhone > >> On Sep 14, 2020, at 11:03 AM, 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. Why predistortion ? (JR) >> 2. Re: Why predistortion ? (Wayne Burdick) >> 3. Re: Why predistortion ? (E.H. Russell) >> 4. Re: Why predistortion ? (Randy Farmer) >> 5. KAT500: Fails to tune, and shows 3:1 on good antenna on 18 >> MHz. (Dave Cole) >> 6. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on >> 18 MHz. (Dick Dievendorff) >> 7. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on >> 18 MHz. (Ken Winterling) >> 8. Why predistortion ? (John Harper) >> 9. Re: Why predistortion ? (Wes) >> 10. Re: Why predistortion ? (W2xj) >> 11. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on >> 18 MHz. (Dave Cole) >> 12. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on >> 18 MHz. (Dave Cole) >> 13. Re: Why predistortion ? (David Gilbert) >> 14. Re: Why predistortion ? (Bill Frantz) >> 15. Re: Why predistortion ? (Wayne Burdick) >> 16. Re: Why predistortion ? (Jim Brown) >> 17. Re: Why predistortion ? (Jim Brown) >> 18. Re: Why predistortion ? (David Gilbert) >> 19. Elecraft CW Net Report (kevinr) >> 20. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on >> 18 MHz. (Dave Cole) >> 21. Re: KAT500: Fails to tune, and shows 3:1 on good antenna on >> 18 MHz. (Ken Winterling) >> 22. 630 meter operation on the K4 (Nigel Lemaire) >> 23. Re: Why predistortion ? (Charlie T) >> 24. Re: Why predistortion ? (Charlie T) >> 25. Re: Why predistortion ? (Dr. William J. Schmidt) >> >> >> ---------------------------------------------------------------------- >> >> Message: 1 >> Date: Sun, 13 Sep 2020 17:32:21 -0400 >> From: JR >> To: Elecraft at mailman.qth.net >> Subject: [Elecraft] Why predistortion ? >> Message-ID: >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Why are so many ops obsessed with predistortion? >> >> The Elecraft K-Line already produces some of the cleanest, purest >> transmit signals around.?? Do we need predistortion ?? If so, why, and >> how much better is it than what we already have?? Should I wait to buy a >> new rig until that is available? >> >> Thanks and Happy Trails to all.?? K8JHR >> _________________________________ >> >> >> ------------------------------ >> >> Message: 2 >> Date: Sun, 13 Sep 2020 15:03:00 -0700 >> From: Wayne Burdick >> To: JR >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <93A9DF67-0B33-4FBF-88FC-226D98D271A2 at elecraft.com> >> Content-Type: text/plain; charset=utf-8 >> >> Hi JR, >> >> Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. >> >> To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. >> >> A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. >> >> Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. >> >> Wayne, >> N6KR >> >> ---- >> elecraft.com >> >>> On Sep 13, 2020, at 2:34 PM, JR wrote: >>> >>> ?Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >>> _________________________________ >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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: 3 >> Date: Sun, 13 Sep 2020 18:41:52 -0400 >> From: "E.H. Russell" >> To: "'Wayne Burdick'" , "'JR'" >> >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <006301d68a1f$13ca1b80$3b5e5280$@qrv.com> >> Content-Type: text/plain; charset="utf-8" >> >> Well put. >> >> TKS, >> 73 ED W2RF >> >> >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On Behalf Of Wayne Burdick >> Sent: Sunday, September 13, 2020 6:03 PM >> To: JR >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> >> Hi JR, >> >> Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. >> >> To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. >> >> A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. >> >> Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. >> >> Wayne, >> N6KR >> >> ---- >> elecraft.com >> >>> On Sep 13, 2020, at 2:34 PM, JR wrote: >>> >>> ?Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >>> _________________________________ >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 ehr at qrv.com >> >> >> >> ------------------------------ >> >> Message: 4 >> Date: Sun, 13 Sep 2020 18:48:17 -0400 >> From: Randy Farmer >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <61bfbc52-60e4-aef8-4869-b07720bb16c6 at windstream.net> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> I can testify to the effectiveness of predistortion techniques from my 5 >> years or so as a CDMA Cellular Base Station engineer with Motorola. The >> first generation of CDMA transmitters had a very specific "spectral >> mask" that had to be certified. As I recall, the transmitter output that >> met the Spectral Mask requirements of something like -60 dBc outside of >> the channel bandwidth showed up with essentially vertical sides (and a >> very flat top) on a spectrum analyzer. Obtaining this performance was >> neither cheap nor easy, and the associated testing was pretty stringent >> as well. Meeting the specs demanded very sophisticated predistortion >> techniques. Be glad that conventional SSB and the fairly simple >> waveforms used in amateur digital comms don't require too much dynamic >> headroom. The first generation CDMA waveform had a roughly 10:1, or 20dB >> peak-to-average power ratio. This meant that the transmitters we >> designed to produce 20W average power were actually capable of 200W >> continuous output power and still met the spectral mask IMD >> requirements. Putting multiple carriers through the PA required either >> higher power capability or derating the power output for each individual >> carrier. I no longer work in the industry, so I don't know what the >> current generation of signals requires, but with the greater bandwidths >> and more complex modulation schemes used now you can bet the >> requirements, and therefore the transmitter design challenge, didn't get >> any easier. >> >> 73... >> Randy, W8FN >> >>> On 9/13/2020 6:03 PM, Wayne Burdick wrote: >>> Hi JR, >>> >>> Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. >>> >>> To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. >>> >>> A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. >>> >>> Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. >>> >>> Wayne, >>> N6KR >>> >>> ---- >>> elecraft.com >> >> >> ------------------------------ >> >> Message: 5 >> Date: Sun, 13 Sep 2020 15:48:40 -0700 >> From: Dave Cole >> To: elecraft at mailman.qth.net >> Subject: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good >> antenna on 18 MHz. >> Message-ID: <113567fc-be02-24b2-6259-f928e7f62555 at nk7z.net> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Hello, >> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. >> Antenna is a single feedline to a 6BTV, and an analyzer says all is good >> at low power. At 100 watts, all seems good. >> >> All other bands seem OK at high power. >> >> Question: When in bypass, is the entire tuner bypassed? >> Question: When turned off is the tuner bypassed? Which antenna is default? >> -- >> 73, and thanks, >> Dave (NK7Z) >>https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >> >> ------------------------------ >> >> Message: 6 >> Date: Sun, 13 Sep 2020 15:57:03 -0700 >> From: Dick Dievendorff >> To: Dave Cole >> Cc: Elecraft at mailman.qth.net >> Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good >> antenna on 18 MHz. >> Message-ID: >> Content-Type: text/plain; charset=utf-8 >> >> When unpowered the KAT500 is bypassed, ANT1. >> >> When the ATU is in mode BYP, yes, it?s bypassed. >> >> 73 de Dick, K6KR >> >>> On Sep 13, 2020, at 15:52, Dave Cole wrote: >>> >>> ?Hello, >>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. Antenna is a single feedline to a 6BTV, and an analyzer says all is good at low power. At 100 watts, all seems good. >>> >>> All other bands seem OK at high power. >>> >>> Question: When in bypass, is the entire tuner bypassed? >>> Question: When turned off is the tuner bypassed? Which antenna is default? >>> -- >>> 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 dick at elecraft.com >> >> >> ------------------------------ >> >> Message: 7 >> Date: Sun, 13 Sep 2020 19:24:24 -0400 >> From: Ken Winterling >> To: Dick Dievendorff >> Cc: Elecraft Reflector >> Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good >> antenna on 18 MHz. >> Message-ID: >> >> Content-Type: text/plain; charset="UTF-8" >> >> When you have issues like this the best test is to use a known good dummy >> load. That removes the antenna system from the equation. See what happens >> on 18mHz when transmitting into the summy load. >> >> Ken >> WA2LBI >> >> >> >> >> >>> On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff wrote: >>> >>> When unpowered the KAT500 is bypassed, ANT1. >>> >>> When the ATU is in mode BYP, yes, it?s bypassed. >>> >>> 73 de Dick, K6KR >>> >>>>> On Sep 13, 2020, at 15:52, Dave Cole wrote: >>>> >>>> ?Hello, >>>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. >>> Antenna is a single feedline to a 6BTV, and an analyzer says all is good at >>> low power. At 100 watts, all seems good. >>>> >>>> All other bands seem OK at high power. >>>> >>>> Question: When in bypass, is the entire tuner bypassed? >>>> Question: When turned off is the tuner bypassed? Which antenna is >>> default? >>>> -- >>>> 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 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 wa2lbi at gmail.com >> >> >> ------------------------------ >> >> Message: 8 >> Date: Sun, 13 Sep 2020 18:40:01 -0500 >> From: John Harper >> To: Elecraft list >> Subject: [Elecraft] Why predistortion ? >> Message-ID: >> >> Content-Type: text/plain; charset="UTF-8" >> >> Here's a demonstration of predistortion in use (relevant part starts at the >> 10-minute point): >>https://www.youtube.com/watch?v=0adHZOTqTlQ >> >> John AE5X >>https://ae5x.blogspot.com >> >> >>> Why are so many ops obsessed with predistortion? >> >> >> ------------------------------ >> >> Message: 9 >> Date: Sun, 13 Sep 2020 17:20:39 -0700 >> From: Wes >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <445dca7d-bbc8-be0f-bb88-70ccc51e88b8 at triconet.org> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> You're kidding, right? >> >> Wes? N7WS >> >> >>> On 9/13/2020 2:32 PM, JR wrote: >>> The Elecraft K-Line already produces some of the cleanest, purest transmit >>> signals around.... >>> >>> Thanks and Happy Trails to all.?? K8JHR >> >> >> >> ------------------------------ >> >> Message: 10 >> Date: Sun, 13 Sep 2020 20:24:07 -0400 >> From: W2xj >> To: Wayne Burdick >> Cc: elecraft at mailman.qth.net, JR >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <267B2358-25D4-4DEF-B624-50C4C830FA86 at w2xj.net> >> Content-Type: text/plain; charset=utf-8 >> >> wayne, >> >> After you have the K4 fully put to bed, for your next project you might want to consider an amp that is directly driven by an I/Q stream. The amplifier will be much more efficient (less power consumption) and you start out with less IMD before any pre-distortion. >> >> Sent from my iPad >> >>> On Sep 13, 2020, at 6:05 PM, Wayne Burdick wrote: >>> >>> ?Hi JR, >>> >>> Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. Even with adequate feedback and bias, an amplifier operated in the vicinity of its 1 dB compression point (where it is most efficient) will exhibit such characteristics. >>> >>> To improve on this you either need to operate class A, which is highly inefficient, or use predistortion. >>> >>> A small number of commercial transceivers are now providing predistortion, in some cases as an optional/experimental setting (that not everyone uses, or at least not all the time). There are constraints on predistortion power range imposed by the headroom limit of the amplifier stage itself. Go over that point and distortion will be worse than without predistortion. >>> >>> Predistortion, correctly applied, can reduce interference between adjacent stations on a crowded band. This is a factor at least some fraction of the time during typical amateur radio use. Beyond that, the motivation for a ?pure? signal exemplifies the amateur spirit of cooperation, and is an example of keeping the hobby on the forefront of electrical design. >>> >>> Wayne, >>> N6KR >>> >>> ---- >>> elecraft.com >>> >>>>> On Sep 13, 2020, at 2:34 PM, JR wrote: >>>> >>>> ?Why are so many ops obsessed with predistortion? >>>> >>>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>>> >>>> Thanks and Happy Trails to all. K8JHR >>>> _________________________________ >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.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 w2xj at w2xj.net >> >> >> >> ------------------------------ >> >> Message: 11 >> Date: Sun, 13 Sep 2020 17:53:36 -0700 >> From: Dave Cole >> To: Dick Dievendorff >> Cc: Elecraft at mailman.qth.net >> Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good >> antenna on 18 MHz. >> Message-ID: <71d26f37-2a9a-5b6d-1255-f720f0e85869 at nk7z.net> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> That helps triage the issue... Something in my antenna must have gone >> wonky... I am using a 6BTV, with the 18 Meter add on kit, so the same >> feedpoint is used for all bands, and they are fine... I was worried it >> was the tuner. I'll go check the antenna out tonight, and in the >> morning as well... THANK YOU! Knowing the tuner is bypassed in Bypass, >> helps... Next is to put a dummy load on the tuner... >> >> 73, and thanks, >> Dave (NK7Z) >>https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >>> On 9/13/20 3:57 PM, Dick Dievendorff wrote: >>> When unpowered the KAT500 is bypassed, ANT1. >>> >>> When the ATU is in mode BYP, yes, it?s bypassed. >>> >>> 73 de Dick, K6KR >>> >>>>> On Sep 13, 2020, at 15:52, Dave Cole wrote: >>>> >>>> ?Hello, >>>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., only. Antenna is a single feedline to a 6BTV, and an analyzer says all is good at low power. At 100 watts, all seems good. >>>> >>>> All other bands seem OK at high power. >>>> >>>> Question: When in bypass, is the entire tuner bypassed? >>>> Question: When turned off is the tuner bypassed? Which antenna is default? >>>> -- >>>> 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 dick at elecraft.com >> >> >> ------------------------------ >> >> Message: 12 >> Date: Sun, 13 Sep 2020 17:54:02 -0700 >> From: Dave Cole >> To: Ken Winterling , Dick Dievendorff >> >> Cc: Elecraft Reflector >> Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good >> antenna on 18 MHz. >> Message-ID: <1cb524e9-b29e-18c6-f2e0-10d9ddda6777 at nk7z.net> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Thanks Ken... That is the next step... Now I need to locate one... >> >> 73, and thanks, >> Dave (NK7Z) >>https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >>> On 9/13/20 4:24 PM, Ken Winterling wrote: >>> When you have issues like this the best test is to use a known good >>> dummy load. That removes the antenna system from the equation. See what >>> happens on 18mHz when transmitting into the summy load. >>> >>> Ken >>> WA2LBI >>> >>> >>> >>> >>> On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff >> > wrote: >>> >>> When unpowered the KAT500 is bypassed, ANT1. >>> >>> When the ATU is in mode BYP, yes, it?s bypassed. >>> >>> 73 de Dick, K6KR >>> >>>> On Sep 13, 2020, at 15:52, Dave Cole >> > wrote: >>>> >>>> ?Hello, >>>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., >>> only. Antenna is a single feedline to a 6BTV, and an analyzer says >>> all is good at low power.? At 100 watts, all seems good. >>>> >>>> All other bands seem OK at high power. >>>> >>>> Question:? When in bypass, is the entire tuner bypassed? >>>> Question:? When turned off is the tuner bypassed?? Which antenna >>> is default? >>>> -- >>>> 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 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 wa2lbi at gmail.com >>> >> >> >> ------------------------------ >> >> Message: 13 >> Date: Sun, 13 Sep 2020 18:50:41 -0700 >> From: David Gilbert >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> >> I don't know where you got the idea that the K-Line produces the >> cleanest signals.? As several people have pointed out, because of the 12 >> volt finals the transmit IMD performance of the existing K-line is >> relatively poor. >> >> Dave?? AB7E >> >> >>> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest >>> transmit signals around.?? Do we need predistortion ?? If so, why, and >>> how much better is it than what we already have?? Should I wait to buy >>> a new rig until that is available? >>> >>> Thanks and Happy Trails to all.?? K8JHR >> >> >> >> ------------------------------ >> >> Message: 14 >> Date: Sun, 13 Sep 2020 21:59:13 -0400 >> From: Bill Frantz >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: >> >> >> Content-Type: text/plain; charset=UTF-8; format=flowed >> >> Wayne is right, it's the right thing to do. And we amateurs try >> to produce the best signals we can. (Ignore the wide CW signals >> during contests. :-) ) >> >> But the value will also show up during multi-op situations like >> running 14A during field day. Field day is much more fun if >> everyone gets a chance to operate. >> >> 73 Bill AE6JV >> >> >>> On 9/13/20 at 6:03 PM, n6kr at elecraft.com (Wayne Burdick) wrote: >>> >>> Predistortion, correctly applied, can reduce interference >>> between adjacent stations on a crowded band. This is a factor >>> at least some fraction of the time during typical amateur radio >>> use. Beyond that, the motivation for a ?pure? signal >>> exemplifies the amateur spirit of cooperation, and is an >>> example of keeping the hobby on the forefront of electrical design. >> >> ----------------------------------------------------------------------- >> Bill Frantz | Privacy is dead, get over | Periwinkle >> (408)348-7900 | it. | 150 Rivermead >> Rd #235 >>www.pwpconsult.com | - Scott McNealy (1999) | Peterborough, >> NH 03458 >> >> >> >> ------------------------------ >> >> Message: 15 >> Date: Sun, 13 Sep 2020 19:14:52 -0700 >> From: Wayne Burdick >> To: David Gilbert >> Cc: Elecraft Reflector >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <8EF1D262-367C-402B-8AA6-FA53A6E30DA7 at elecraft.com> >> Content-Type: text/plain; charset=us-ascii >> >> 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. >> >> On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. >> >> 73, >> Wayne >> N6KR >> >> >> >>> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >>> >>> >>> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >>> >>> Dave AB7E >>> >>> >>>> On 9/13/2020 2:32 PM, JR wrote: >>>> Why are so many ops obsessed with predistortion? >>>> >>>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>>> >>>> Thanks and Happy Trails to all. K8JHR >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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: 16 >> Date: Sun, 13 Sep 2020 21:14:47 -0700 >> From: Jim Brown >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: >> <3b519632-c9d4-fc1c-aa1d-dd61280309eb at audiosystemsgroup.com> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >>> On 9/13/2020 2:32 PM, JR wrote: >>> The Elecraft K-Line already produces some of the cleanest, purest >>> transmit signals around.?? Do we need predistortion ? >> >> If you care about a clean signal, YES! If you don't mind being a bad >> neighbor, no. >> >> 73, Jim K9YC >> >> >> ------------------------------ >> >> Message: 17 >> Date: Sun, 13 Sep 2020 21:25:46 -0700 >> From: Jim Brown >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: >> <982c6d3b-e290-2211-62c9-101b470408aa at audiosystemsgroup.com> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >>> On 9/13/2020 3:03 PM, Wayne Burdick wrote: >>> Virtually all class-AB-biased amplifier stages have worst-case 3rd-order IMD in the range of -30 dBc (ARRL method) on some HF bands. This reflects a limitation in the state of the art. >> >> I hope that this feature will be implemented for CW as well. CW is 100% >> AM of a carrier by rectangular pulses, so any distortion in the transmit >> chain results in clicks. Elecraft pioneered very clean keying waveforms; >> it would be unfortunate for that to be lost with IMD in the power stages. >> >> 73, Jim K9YC >> >> >> ------------------------------ >> >> Message: 18 >> Date: Sun, 13 Sep 2020 21:43:21 -0700 >> From: David Gilbert >> To: Elecraft Reflector >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <90ad2b50-de2b-1621-3e8b-05c7c3243a14 at gmail.com> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> >> >> Of course, but that's a conscious choice by Elecraft and it does not >> result in the "cleanest, purest signals around."? I give Elecraft tons >> of credit for the other measures they have take to produce good signals, >> which is why I own and will keep my upgraded K3 probably forever, but >> K8JHR simply was incorrect in his comment and it makes a difference when >> considering the expanding focus by folks like Sherwood and others to >> clean up the bands.? When it comes to IMD, Elecraft is not one of the >> better players.? The fact that that's by choice doesn't change >> anything.? I suspect that 95+% of K3 rigs are used in portable/emergency >> situations less than 5% of the time. >> >> 73, >> Dave?? AB7E >> >> >> >>> On 9/13/2020 7:14 PM, Wayne Burdick wrote: >>> 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. >>> >>> On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. >>> >>> 73, >>> Wayne >>> N6KR >>> >>> >>> >>>>> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >>>> >>>> >>>> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >>>> >>>> Dave AB7E >>>> >>>> >>>> On 9/13/2020 2:32 PM, JR wrote: >>>>> Why are so many ops obsessed with predistortion? >>>>> >>>>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>>>> >>>>> Thanks and Happy Trails to all. K8JHR >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.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, 13 Sep 2020 21:51:33 -0700 >> From: kevinr >> To: Elecraft Reflector >> Subject: [Elecraft] Elecraft CW Net Report >> Message-ID: >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Good Evening, >> >> ?? Signals were stronger than last week with less noise on both bands.? >> QSB was a little higher on forty meters.? Most of you reported very nice >> weather.? Even out west the weather is not too bad once you allow for >> all the smoke.? It certainly makes working outside difficult.? Staying >> inside helps but I still have a stuffy nose and a mild headache.? My >> begonias don't like the smoke either, they are rapidly losing blossoms. >> >> ?? The forty meter net improves as the days grow shorter.? I was able >> to reach Texas again.? Hopefully there will be some new sunspots this >> week.? That would help my reach. >> >> >> ? On 14050.8 kHz at 2200z: >> >> W0CZ - Ken - ND >> >> NO8V - John - MI >> >> AB9V - Mike - IN >> >> K6XK - Roy - IA >> >> >> ? On 7047.5 kHz at 0045z: >> >> W0CZ - Ken - ND >> >> K0DTJ - Brian - CA >> >> K6PJV - Dale - CA >> >> W8OV - Dave - TX >> >> >> I plan to work inside again this week.? I need to collect wood but >> exercise in these smoky conditions makes the headaches worse. A week of >> rain starting tomorrow night will help.? Maybe they will slow the fires >> in the Cascades and clear our skies.? 2020 has been quite a year.? I'm >> waiting for January so we can start over. >> >> ?? Until next week 73, >> >> ????? Kevin.? KD5ONS >> >> >> - >> >> >> >> cutting angle = degrees(atan2(twist, PI() * caliber)) >> >> >> >> ------------------------------ >> >> Message: 20 >> Date: Mon, 14 Sep 2020 04:52:03 -0700 >> From: Dave Cole >> To: Elecraft Reflector >> Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good >> antenna on 18 MHz. >> Message-ID: >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Hi ken, >> Added the dummy, no problems, so it is the antenna... Also, given it is >> a 6BTV with the 18 meter add on, and all other bands work, it is not the >> feedline... >> >> This makes it simple to fix! It is either a break with the laws of >> physics as we understand them today-- or a connection has come loose. >> Given there are only two connections... I suspect it will be a simple fix. >> >> 73, and thanks, >> Dave (NK7Z) >>https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist >> ARRL Asst. Director, NW Division, Technical Resources >> >>> On 9/13/20 4:24 PM, Ken Winterling wrote: >>> When you have issues like this the best test is to use a known good >>> dummy load. That removes the antenna system from the equation. See what >>> happens on 18mHz when transmitting into the summy load. >>> >>> Ken >>> WA2LBI >>> >>> >>> >>> >>> On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff >> > wrote: >>> >>> When unpowered the KAT500 is bypassed, ANT1. >>> >>> When the ATU is in mode BYP, yes, it?s bypassed. >>> >>> 73 de Dick, K6KR >>> >>>> On Sep 13, 2020, at 15:52, Dave Cole >> > wrote: >>>> >>>> ?Hello, >>>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., >>> only. Antenna is a single feedline to a 6BTV, and an analyzer says >>> all is good at low power.? At 100 watts, all seems good. >>>> >>>> All other bands seem OK at high power. >>>> >>>> Question:? When in bypass, is the entire tuner bypassed? >>>> Question:? When turned off is the tuner bypassed?? Which antenna >>> is default? >>>> -- >>>> 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 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 wa2lbi at gmail.com >>> >> >> >> ------------------------------ >> >> Message: 21 >> Date: Mon, 14 Sep 2020 07:54:32 -0400 >> From: Ken Winterling >> To: Dave Cole >> Cc: Elecraft Reflector >> Subject: Re: [Elecraft] KAT500: Fails to tune, and shows 3:1 on good >> antenna on 18 MHz. >> Message-ID: >> >> Content-Type: text/plain; charset="UTF-8" >> >> GL! >> >> Ken >> WA2LBI >> >> >> >> >> >>> On Mon, Sep 14, 2020 at 7:53 AM Dave Cole wrote: >>> >>> Hi ken, >>> Added the dummy, no problems, so it is the antenna... Also, given it is >>> a 6BTV with the 18 meter add on, and all other bands work, it is not the >>> feedline... >>> >>> This makes it simple to fix! It is either a break with the laws of >>> physics as we understand them today-- or a connection has come loose. >>> Given there are only two connections... I suspect it will be a simple fix. >>> >>> 73, and thanks, >>> Dave (NK7Z) >>>https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>>> On 9/13/20 4:24 PM, Ken Winterling wrote: >>>> When you have issues like this the best test is to use a known good >>>> dummy load. That removes the antenna system from the equation. See what >>>> happens on 18mHz when transmitting into the summy load. >>>> >>>> Ken >>>> WA2LBI >>>> >>>> >>>> >>>> >>>> On Sun, Sep 13, 2020 at 6:58 PM Dick Dievendorff >>> > wrote: >>>> >>>> When unpowered the KAT500 is bypassed, ANT1. >>>> >>>> When the ATU is in mode BYP, yes, it?s bypassed. >>>> >>>> 73 de Dick, K6KR >>>> >>>>> On Sep 13, 2020, at 15:52, Dave Cole >>> > wrote: >>>>> >>>>> ?Hello, >>>>> My KAT500 which worked yesterday, now shows a 3:1 on 18 MHz., >>>> only. Antenna is a single feedline to a 6BTV, and an analyzer says >>>> all is good at low power. At 100 watts, all seems good. >>>>> >>>>> All other bands seem OK at high power. >>>>> >>>>> Question: When in bypass, is the entire tuner bypassed? >>>>> Question: When turned off is the tuner bypassed? Which antenna >>>> is default? >>>>> -- >>>>> 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 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 >>Elecraft at mailman.qth.net> >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to wa2lbi at gmail.com >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to wa2lbi at gmail.com >> >> >> ------------------------------ >> >> Message: 22 >> Date: Mon, 14 Sep 2020 08:10:55 -0700 >> From: Nigel Lemaire >> To: elecraft at mailman.qth.net >> Subject: [Elecraft] 630 meter operation on the K4 >> Message-ID: <41ede123-acb7-0587-03f5-cb1910a1e24c at q.com> >> Content-Type: text/plain; charset=utf-8; format=flowed >> >> Wondering what capabilities the K4 will have on this (these) bands... >> >> 73 >> Nigel >> Wa6MSE >> >> >> ------------------------------ >> >> Message: 23 >> Date: Sun, 13 Sep 2020 22:42:02 -0400 >> From: "Charlie T" >> To: >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <007401d68a40$a4157ce0$ec4076a0$@erols.com> >> Content-Type: text/plain; charset="UTF-8" >> >> According to Rob Sherwood, the Collins 32S-3 produces the cleanest SSB signal on the air of any commercial amateur radio transmitters. >> >> 73, Charlie k3ICH >> >> >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert >> Sent: Sunday, September 13, 2020 9:51 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> >> >> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >> >> Dave AB7E >> >> >>> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest >>> transmit signals around. Do we need predistortion ? If so, why, and >>> how much better is it than what we already have? Should I wait to buy >>> a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 >> >> >> >> ------------------------------ >> >> Message: 24 >> Date: Mon, 14 Sep 2020 07:29:48 -0400 >> From: "Charlie T" >> To: >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> >> Content-Type: text/plain; charset="UTF-8" >> >> Maybe I'm missing something here, but it would seem to me that if an FET linear amplifier running from 50 V or higher is considerably cleaner than one running from 12 V, that, for a high end rig, a simple step-up switching supply could solve the problem. But, that obviously adds to the cost so it IS somewhat of a conundrum. >> >> However, implementing the pre-distortion function IS probably a better long-term solution. >> >> 73, Charlie k3ICH >> >> >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On Behalf Of David Gilbert >> Sent: Monday, September 14, 2020 12:43 AM >> To: Elecraft Reflector >> Subject: Re: [Elecraft] Why predistortion ? >> >> >> >> Of course, but that's a conscious choice by Elecraft and it does not result in the "cleanest, purest signals around." I give Elecraft tons of credit for the other measures they have take to produce good signals, which is why I own and will keep my upgraded K3 probably forever, but K8JHR simply was incorrect in his comment and it makes a difference when considering the expanding focus by folks like Sherwood and others to clean up the bands. When it comes to IMD, Elecraft is not one of the better players. The fact that that's by choice doesn't change anything. I suspect that 95+% of K3 rigs are used in portable/emergency situations less than 5% of the time. >> >> 73, >> Dave AB7E >> >> >> >>> On 9/13/2020 7:14 PM, Wayne Burdick wrote: >>> 12 volts is a severe constraint for MOSFET PAs. But, like a lot of other manufacturers, we accept this constraint so the equipment can be used in a wide variety of portable/emergency power situations. As a result we have IMD numbers in exactly the same range as other products that are subject to this constraint. >>> >>> On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth. See paper by K9YC for example. Perhaps that's what JR was thinking of. >>> >>> 73, >>> Wayne >>> N6KR >>> >>> >>> >>>>> On Sep 13, 2020, at 6:50 PM, David Gilbert wrote: >>>> >>>> >>>> I don't know where you got the idea that the K-Line produces the cleanest signals. As several people have pointed out, because of the 12 volt finals the transmit IMD performance of the existing K-line is relatively poor. >>>> >>>> Dave AB7E >>>> >>>> >>>> On 9/13/2020 2:32 PM, JR wrote: >>>>> Why are so many ops obsessed with predistortion? >>>>> >>>>> The Elecraft K-Line already produces some of the cleanest, purest transmit signals around. Do we need predistortion ? If so, why, and how much better is it than what we already have? Should I wait to buy a new rig until that is available? >>>>> >>>>> Thanks and Happy Trails to all. K8JHR >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.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 pincon at erols.com >> >> >> >> ------------------------------ >> >> Message: 25 >> Date: Mon, 14 Sep 2020 11:00:25 -0500 >> From: "Dr. William J. Schmidt" >> To: "'Elecraft List'" >> Subject: Re: [Elecraft] Why predistortion ? >> Message-ID: <000c01d68ab0$2937ac80$7ba70580$@wjschmidt.com> >> Content-Type: text/plain; charset="iso-8859-1" >> >> 6AU6 - 6CL6 - 6146A trio is a very and associated circuitry produces some of >> the lowest distortion products when run at the right conditions (voltages, >> etc). Note at 75 watts the 6146 is in its sweet spot. >> >> >> Dr. William J. Schmidt - K9HZ >> >> >> email:? bill at wjschmidt.com >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net >> [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Charlie T >> Sent: Sunday, September 13, 2020 9:42 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> >> According to Rob Sherwood, the Collins 32S-3 produces the cleanest SSB >> signal on the air of any commercial amateur radio transmitters. >> >> 73, Charlie k3ICH >> >> >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On >> Behalf Of David Gilbert >> Sent: Sunday, September 13, 2020 9:51 PM >> To: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Why predistortion ? >> >> >> I don't know where you got the idea that the K-Line produces the cleanest >> signals. As several people have pointed out, because of the 12 volt finals >> the transmit IMD performance of the existing K-line is relatively poor. >> >> Dave AB7E >> >> >>> On 9/13/2020 2:32 PM, JR wrote: >>> Why are so many ops obsessed with predistortion? >>> >>> The Elecraft K-Line already produces some of the cleanest, purest >>> transmit signals around. Do we need predistortion ? If so, why, and >>> how much better is it than what we already have? Should I wait to buy >>> a new rig until that is available? >>> >>> Thanks and Happy Trails to all. K8JHR >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 bill at wjschmidt.com >> >> >> -- >> This email has been checked for viruses by AVG. >>https://www.avg.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 197, Issue 18 >> ***************************************** >______________________________________________________________ >Elecraft mailing list >Home: http://mailman.qth.net/mailman/listinfo/elecraft >Help: http://mailman.qth.net/mmfaq.htm >Post: mailto:Elecraft at mailman.qth.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 kl7uw at acsalaska.net Mon Sep 14 16:43:35 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Mon, 14 Sep 2020 12:43:35 -0800 Subject: [Elecraft] K3: KIO3 dgital board failed (I think) Message-ID: <202009142043.08EKhcZl017563@mail42c28.carrierzone.com> My K3 SN 4340 bought in 2010 apparently has a failure in the RS232 I/F. My computer says the FDTI cable is working and using com port-6 but there is no connection using the K3 Utility or WSJT-X which was running fine in July. The radio no longer keys up on computer boot-up as before. I bought another FDTI USB/RS232 conversion cable and it does not work wit the K3, either. I checked the com port and cable via Device Manager and both are shown as working with no problems. I even used my second computer to test the cables (also showing working well). Computers are i5 running win10pro64. I contacted Elecraft Service Dept on Friday so waiting to hear back from them. I gave a passing thought to just upgrade to the KIO3B but it totals $437.80 before shipping. I don't really need the USB I/F for my use of the K3. I use two com ports to support control of the K3 (I won't bother you with details) to run MAP65 and TRAKBOX programs simultaneously. But just have the single com port recently in use with WSJT-X. I guess I wonder if anyone else has had this failure? 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From g8kbvdave at googlemail.com Mon Sep 14 12:52:17 2020 From: g8kbvdave at googlemail.com (Dave B) Date: Mon, 14 Sep 2020 17:52:17 +0100 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: Pre-distortion is often used in modern cellular base-station transmiters, and perhaps digital broadcast systems where they have to handle multiple carriers simultaneously, "at power". It dramatically reduces transmitted intermodulation to very low levels, allowing such multi carrier systems to co-exist very close to each other, improving the reception of the base station by the mobile/handset device.? (Lower Bit Error Rate numbers.)? Without spending mega bucks for a PA system grossly over rated and inefficient, just to stay in it's very linear region, well below the 1dB compression point!? (As was common not that long ago.) As mobile phones these days are also almost all SDR in nature, even they may apply pre-distortion to their TX signal, for the same reason.? Smaller lower cost and lower power consumption PA, but keeping it clean. "Docherty Amplifier" systems are also often used in other cases, where a clean low power class A amp in effect "corrects" the output of a much more powerful, more efficient but not as linear (class B) amplifier by means of a combiner, dynamically adding or subtracting "signal" as needed in analogue real-time.? (Crude over simplification!) The techniques are as yet not common in Amateur circles, but are becoming widely used in several commercial scenarios, so it is only a matter of time...? As more and more mainstream radio transceivers adopt SDR principles in both RX and TX paths, the cost savings at the high power stages become significant, once the software is developed and fully engineered. 73. Dave G0WBX. On 14/09/2020 17:00, elecraft-request at mailman.qth.net wrote: > Re: [Elecraft] Why predistortion ? -- Created on and sent from a Unix like PC running and using free and open source software: From jtmiller47 at gmail.com Mon Sep 14 17:06:43 2020 From: jtmiller47 at gmail.com (Jim Miller) Date: Mon, 14 Sep 2020 17:06:43 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <1600116134420-0.post@n2.nabble.com> References: <1600116134420-0.post@n2.nabble.com> Message-ID: <37A487CC-67CF-4E3A-9499-7861CA15B509@gmail.com> I ordered my K3 in 2008. The K3s was a modest upgrade. The processing power to accomplish predistortion has only become affordable in the last few years and is far beyond the capacity remaining in the 12 year old K3. Jim abt On Sep 14, 2020, at 4:44 PM, IK4EWX wrote: ?Why it seem so difficult thing for the great Elecraft rigs? Apache Labs Anan rigs, from 2.700 to 4.400 $, all have predistortion included. Are their power supply with higher voltages than the 12V of Elecraft? Ian Ik4EWX -- 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 jim at jtmiller.com From chrisc at chris.org Mon Sep 14 17:14:57 2020 From: chrisc at chris.org (Chris Cox, N0UK) Date: Mon, 14 Sep 2020 16:14:57 -0500 Subject: [Elecraft] Continuing saga with Tx Inhibit and the KX3 - possible firmware bug? In-Reply-To: <5f4d40d2.1c69fb81.12839.4760@mx.google.com> References: <31455.1598634511119271768@groups.io> <5f4d40d2.1c69fb81.12839.4760@mx.google.com> Message-ID: <583CB8E7-8618-4C4E-A630-8CCAACB9EDD8@chris.org> Having solved the need for getting +Ve Tx Inhibit working on my KX3/10GHz Transverter integration using a mosfet switch to invert the signal and configured the KX3 for 0v Tx Inhibit, I had opportunity to test it out this afternoon. The solution seemed to work fine on SSB but I now have a weird issue when using the rig on CW. If I manually select transmit with the microphone PTT and then wait for the transverter sequencing to remove Tx Inhibit and then key CW with the paddles, the system works as desired. If I key the system using VOX, the Tx Inhibit functions correctly, fully disabling the transmitter from producing RF until TxInhibit is removed BUT the CW sidetone becomes permanently on from the moment TXInh disappears regardless of whether I am sending or not. It stays present until I press any of the buttons on the KX3. This happens regardless of which band is enabled, but occurs whenever TxInhibit is present. If I remove the TXInh fro the GPIO input (but leave the option enabled in the KX3 config) the rig operates normally. Can anyone else replicate this oddball behavior? It seems to be a firmware bug. I have tried removing power but that does not alter the effect. Again, all works just fine if I don?t try to key the paddles before PTT sequencing has changed over. Chris Cox, N0UK chrisc at chris.org From nr4c at widomaker.com Mon Sep 14 18:46:54 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 14 Sep 2020 18:46:54 -0400 Subject: [Elecraft] K3: KIO3 dgital board failed (I think) In-Reply-To: <202009142043.08EKhcZl017563@mail42c28.carrierzone.com> References: <202009142043.08EKhcZl017563@mail42c28.carrierzone.com> Message-ID: <7E89129F-2CB2-4126-9DB0-AF19B8A165FD@widomaker.com> Oh yes. And the only way out is to upgrade the whole system. Or look for used items here. Sent from my iPhone ...nr4c. bill > On Sep 14, 2020, at 4:48 PM, Edward R Cole wrote: > > ?My K3 SN 4340 bought in 2010 apparently has a failure in the RS232 I/F. > > My computer says the FDTI cable is working and using com port-6 but there is no connection using the K3 Utility or WSJT-X which was running fine in July. The radio no longer keys up on computer boot-up as before. I bought another FDTI USB/RS232 conversion cable and it does not work wit the K3, either. I checked the com port and cable via Device Manager and both are shown as working with no problems. I even used my second computer to test the cables (also showing working well). Computers are i5 running win10pro64. > > I contacted Elecraft Service Dept on Friday so waiting to hear back from them. > > I gave a passing thought to just upgrade to the KIO3B but it totals $437.80 before shipping. I don't really need the USB I/F for my use of the K3. I use two com ports to support control of the K3 (I won't bother you with details) to run MAP65 and TRAKBOX programs simultaneously. But just have the single com port recently in use with WSJT-X. > > I guess I wonder if anyone else has had this failure? > > 73, Ed - KL7UW > http://www.kl7uw.com > Dubus-NA Business mail: > dubususa at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From ab7echo at gmail.com Mon Sep 14 19:15:35 2020 From: ab7echo at gmail.com (David Gilbert) Date: Mon, 14 Sep 2020 16:15:35 -0700 Subject: [Elecraft] K3: KIO3 dgital board failed (I think) In-Reply-To: <202009142043.08EKhcZl017563@mail42c28.carrierzone.com> References: <202009142043.08EKhcZl017563@mail42c28.carrierzone.com> Message-ID: <89fb3569-f02c-7066-8130-c4387ecaadc8@gmail.com> I had exactly that same problem, Ed, and I also first thought it was the USB/RS232 cable (which it wasn't).? I also do not need the direct USB connectivity, or the associated internal sound card. Luckily, I was able to buy replacement boards from someone who had done the upgrade to the KIO3B for another ham and still had the old boards, one of which ... the audio board ... was itself bad but at least the RS232 board was good.? Problem fixed. In my case, the KIO3A apparently was damaged by a line transient that came in via the laptop that was connected to the USB/RS232 line.? Most everything was disconnected at the time, but that line wasn't. I had sent an email to Elecraft technical support when I first had the problem, asking whether or not they had replacement boards or whether they could fix the KIO3A.? The tech didn't bother to answer either of those questions and simply replied with a rather curt "just upgrade to the KIO3B ... you'll be happier". Somebody could probably make a small business gathering various older K3/K3s boards from folks who had done various upgrades in order to service users like us who can't get help anymore from Elecraft. 73, Dave?? AB7E On 9/14/2020 1:43 PM, Edward R Cole wrote: > My K3 SN 4340 bought in 2010 apparently has a failure in the RS232 I/F. > > My computer says the FDTI cable is working and using com port-6 but > there is no connection using the K3 Utility or WSJT-X which was > running fine in July.? The radio no longer keys up on computer boot-up > as before.? I bought another FDTI USB/RS232 conversion cable and it > does not work wit the K3, either.? I checked the com port and cable > via Device Manager and both are shown as working with no problems.? I > even used my second computer to test the cables (also showing working > well).? Computers are i5 running win10pro64. > > I contacted Elecraft Service Dept on Friday so waiting to hear back > from them. > > I gave a passing thought to just upgrade to the KIO3B but it totals > $437.80 before shipping.? I don't really need the USB I/F for my use > of the K3.? I use two com ports to support control of the K3 (I won't > bother you with details) to run MAP65 and TRAKBOX programs > simultaneously.? But just have the single com port recently in use > with WSJT-X. > > I guess I wonder if anyone else has had this failure? > > 73, Ed - KL7UW From douglas.hagerman at me.com Mon Sep 14 19:49:55 2020 From: douglas.hagerman at me.com (Douglas Hagerman) Date: Mon, 14 Sep 2020 17:49:55 -0600 Subject: [Elecraft] Overlapping K2 upgrades? Message-ID: I am starting to apply the accumulated Elecraft upgrades to an early K2. Do any of them overlap? Is there a preferred sequence I should follow? Doug, W0UHU. From rosen.bruce at gmail.com Mon Sep 14 20:04:07 2020 From: rosen.bruce at gmail.com (K1FFX) Date: Mon, 14 Sep 2020 17:04:07 -0700 (MST) Subject: [Elecraft] [K2] Interest in assembled K2? Message-ID: <1600128247769-0.post@n2.nabble.com> I'm starting to plan how to get through the cold months that are coming during which we won't be getting together with friends and family at all, since it will be too cold to do so outdoors. I've been a happy K2 owner for 10 years now, having built my K2 back in the Summer/Fall of 2010. I'm now thinking of assembling a new K2 as a way to occupy part of the time. I find kit-building to be an engaging and soothing activity and building a K2 could be a way to help pass the time this winter. My question is: is there generally interest out there for pre-assembled K2s? I would only want to make back the cost of the kit; the time spent building the kit would be well worth it to me. Any thoughts on this? Thanks! - Bruce K1FFX ----- Bruce Rosen K1FFX K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 -- Sent from: http://elecraft.365791.n2.nabble.com/ From jrichards at k8jhr.com Mon Sep 14 20:21:11 2020 From: jrichards at k8jhr.com (JR) Date: Mon, 14 Sep 2020 20:21:11 -0400 Subject: [Elecraft] Why predistortion ? Message-ID: Mr. Wayne said --? "On the other hand, our transceivers are best in class in terms of transmitted keying bandwidth.? See paper by K9YC for example.? Perhaps that's what JR was thinking of." ------------------------------------ YES,? that is EXACTLY what I was thinking of!?? Parenthetically, K9YC created that particular document specifically in response to my request on another reflector for quantification relative to unsubstantiated claims contradicting what ARRL Lab guru Bob Alison, WB1GCM, told me.?? I believe it is the only piece that compiles the available data in a single document. THANK YOU for the enlightening reply, Mr. Wayne - I appreciate the leg up.? One can learn a lot just by asking questions. ? K8JHR __________________________________ From joseph.durnal at gmail.com Mon Sep 14 21:17:01 2020 From: joseph.durnal at gmail.com (Joseph M. Durnal) Date: Mon, 14 Sep 2020 21:17:01 -0400 Subject: [Elecraft] [K2] Interest in assembled K2? In-Reply-To: <1600128247769-0.post@n2.nabble.com> References: <1600128247769-0.post@n2.nabble.com> Message-ID: They sell on here all the time. I generally miss the ones that go for a good price. 73 de Joe NE3R On Mon, Sep 14, 2020 at 8:04 PM K1FFX wrote: > I'm starting to plan how to get through the cold months that are coming > during which we won't be getting together with friends and family at all, > since it will be too cold to do so outdoors. I've been a happy K2 owner > for > 10 years now, having built my K2 back in the Summer/Fall of 2010. I'm now > thinking of assembling a new K2 as a way to occupy part of the time. I > find > kit-building to be an engaging and soothing activity and building a K2 > could > be a way to help pass the time this winter. > > My question is: is there generally interest out there for pre-assembled > K2s? > I would only want to make back the cost of the kit; the time spent building > the kit would be well worth it to me. > > Any thoughts on this? > > Thanks! > > - Bruce K1FFX > > > > > ----- > Bruce Rosen > K1FFX > K2/100 6982 KSB2 KAT100-1 KAF2 KIO2 > > -- > 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 joseph.durnal at gmail.com > From donwilh at embarqmail.com Tue Sep 15 00:43:23 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Tue, 15 Sep 2020 00:43:23 -0400 Subject: [Elecraft] Overlapping K2 upgrades? In-Reply-To: References: Message-ID: <61327bb4-b768-41f8-4198-d8278001a86c@embarqmail.com> Doug, If you have the most current upgrade kits, there is no overlap. OTOH if you have older upgrade kits such as the BFO upgrade, there were changes. 73, Don W3FPR On 9/14/2020 7:49 PM, Douglas Hagerman via Elecraft wrote: > I am starting to apply the accumulated Elecraft upgrades to an early K2. Do any of them overlap? Is there a preferred sequence I should follow? From n4xy at comcast.net Tue Sep 15 01:21:57 2020 From: n4xy at comcast.net (Ed) Date: Tue, 15 Sep 2020 01:21:57 -0400 Subject: [Elecraft] Overlapping K2 upgrades? In-Reply-To: <61327bb4-b768-41f8-4198-d8278001a86c@embarqmail.com> References: <61327bb4-b768-41f8-4198-d8278001a86c@embarqmail.com> Message-ID: <17490366108.288e.04e9838cc20bde95fd8041c77455cd8f@comcast.net> I have ALL the upgrades as far as I know, but for my original Field Test K2 SN 00057 I stopped at CW only. I have (I think) ALL the upgrades/updates and SSB and the 100W kit. I guess that all I can do is go through ALL of it and try to make sense/sure everything is in order. (???) Ed N4XY On September 15, 2020 12:44:08 AM Don Wilhelm wrote: > Doug, > > If you have the most current upgrade kits, there is no overlap. OTOH if > you have older upgrade kits such as the BFO upgrade, there were changes. > > 73, > Don W3FPR > > On 9/14/2020 7:49 PM, Douglas Hagerman via Elecraft wrote: >> I am starting to apply the accumulated Elecraft upgrades to an early K2. Do >> any of them overlap? Is there a preferred sequence I should follow? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n4xy at comcast.net From jim at audiosystemsgroup.com Tue Sep 15 01:41:39 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Mon, 14 Sep 2020 22:41:39 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: On 9/14/2020 5:21 PM, JR wrote: > Parenthetically, K9YC created that particular document specifically in > response to my request on another reflector for quantification relative > to unsubstantiated claims contradicting what ARRL Lab guru Bob Alison, > WB1GCM, told me. That piece I compiled came from Bob's raw data. In essence, I plotted data for that select list of products on the same graph, with the scale large enough to compare each product. The plots were of running averages of adjacent data points to smooth it, again to make it more readable. 73, Jim K9YC From chrisc at chris.org Tue Sep 15 09:10:31 2020 From: chrisc at chris.org (Chris Cox, N0UK) Date: Tue, 15 Sep 2020 08:10:31 -0500 Subject: [Elecraft] KX3 Tx Inhibit CW-VOX problem Message-ID: <66381756-C09A-4A99-8AA5-1E015B182C00@chris.org> Having solved the need for getting +Ve Tx Inhibit working on my KX3/10GHz Transverter integration using a MOSFET switch to invert the logic level coming from the 10GHz transverter and configured the KX3 for 0v Tx Inhibit, I had the opportunity to test it out yesterday afternoon. The solution seemed to work fine on SSB but I now have a weird issue when using the rig on CW. If I manually select transmit with the microphone PTT (didn?t try the XMIT key) and then wait for the transverter sequencing to remove Tx Inhibit and then key CW with the paddles, the system works as desired. If I key the system using CW VOX, the Tx Inhibit functions correctly, fully disabling the transmitter from producing RF until TxInhibit is removed by the transverter?s sequencing logic BUT then the CW sidetone becomes permanently on from the moment TXInh disappears, regardless of whether I am keying or not. It stays present until I press any of the buttons on the KX3. This happens regardless of which band is enabled, but occurs whenever TxInhibit is initially present. If I remove the TXInh fro the ACC2 GPIO input (but leave the option enabled in the KX3 config) the rig operates normally under VOX control. Can anyone else replicate this oddball behavior? It seems to be a firmware bug. I have tried removing power from the KX3 but that does not correct the anomalous behavior. Again, all works just fine if I don?t try to key the paddles before PTT sequencing has changed over. Chris Cox, N0UK Chris Cox, N0UK chrisc at chris.org From k2asp at kanafi.org Tue Sep 15 11:31:05 2020 From: k2asp at kanafi.org (Phil Kane) Date: Tue, 15 Sep 2020 08:31:05 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: On 9/14/2020 9:52 AM, Dave B via Elecraft wrote: > Pre-distortion is often used in modern cellular base-station > transmiters, and perhaps digital broadcast systems where they have to > handle multiple carriers simultaneously, "at power". At the beginning of this discussion I was confusing "predistortion" with "pre-emphasis" which in the FM broadcast field refers to the intentional introduction of nonlinear audio frequency response of the transmission chain, recovered by "de-emphasis" in the receivers. Now I understand better what the discussion is all about. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From rick at tavan.com Tue Sep 15 17:19:49 2020 From: rick at tavan.com (Rick Tavan) Date: Tue, 15 Sep 2020 14:19:49 -0700 Subject: [Elecraft] K4 On-screen documentation Message-ID: I just had the opportunity to review a draft of the K4 on-screen documentation. It's excellent! It's fully hyper-linked with HTML browser capabilities so I could jump around, following links to my heart's content and eventually returning to where I began reading. It includes not only the anticipated explanations of each connector, physical switch, knob, and on-screen button, but also procedural operating instructions on how to do the things one needs to do with a radio. When loaded into a K4, it will be readable like a typical hypertext document with a Table of Contents at the top. Also, you will be able to tap a button to see help on the most-recently used function. So if you do something and aren't sure what happened, just ask and it will pop up an explanation of that control. Or tap something just to queue up help on how it works. Slick! I read the material on a computer browser but it was already white-on-black as I expect it to be on the K4 screen. Function names are bracketed and color-coded to distinguish physical switches, touch controls, and knobs. Hold-functions of switches and touch controls are in yellow instead of white and preceded by a modifier like "Hold" so I think it will be very usable by hams with compromised color vision. There are some handy pictures of panel and screen snippets that illustrate references beyond the shadow of doubt, but not so many as to make the document bulky or awkward. This Help system sets a standard that more technically advanced transceivers and other devices should evolve to meet. This text is also serving as the "seed" for the full, printable manual. I expect that manual to be in typical Elecraft style, with loads of diagrams and highly detailed explanations. I'm not sure I'll need it very often, though, since the on-screen material is so comprehensive. Please be merciful to Elecraft and refrain from immediate calls for a public version. That will follow soon, I'm sure, after the next round of revisions and additions. 73, /Rick N6XI Field Tester/Proof Reader -- Rick Tavan Truckee and Saratoga, CA From jjw5257 at yahoo.ca Tue Sep 15 17:34:24 2020 From: jjw5257 at yahoo.ca (Jeff Wilson) Date: Tue, 15 Sep 2020 21:34:24 +0000 (UTC) Subject: [Elecraft] KIO3 Digital Board Failed and WSJTx transmit issues References: <986626426.2737761.1600205664796.ref@mail.yahoo.com> Message-ID: <986626426.2737761.1600205664796@mail.yahoo.com> Hi EdI just solved a similar problem with my K3 (s/n 1900 plus all K3 upgrades) setting up WSJTx after Windows 10 update and having to renumber COM ports that use FTDI chip USB adapters.? I could not set my usual config for CAT and PTT (using CAT) and got a PTT ERR on the K3 which would go into TX but without power on WSJTx boot up.? Just pushing TEST on and then off reset the K3IO and I was off to the races.? This is in the original K3 manual, page 19 I think.? Found on a previous post after search PTT ERR. In the K3 Manual:? " If a PC or other device asserts RTS or DTR DIGOUT 1 while you're in the PTT-KEY menu entry, the K3 will enter TEST mode as a precaution. Page 19 In the tables below, 0 = 0 VDC, and 1 = device Normally, when the K3 is turned on, a 5-VDC logic supply voltage. signal appears on ACC pin 7 (K3 ON)." I thought my K3IO was toast as WSJTx software and FTDI serial USB adapters all worked fine with my FT-1000mp.? This was caused by adjusting the K3 MENU and CONFIG setting while changing things on WSTJx at the same time.....must have been in panic mode. Hi. Hope this helps.73Jeff VE3CV From no9e at arrl.net Tue Sep 15 10:11:55 2020 From: no9e at arrl.net (Ignacy) Date: Tue, 15 Sep 2020 07:11:55 -0700 (MST) Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <1600179115585-0.post@n2.nabble.com> Many factors influence how wide the signal is in SSB, not just IMD3 numbers. These are: 1. Quality of ALC. Here K3 is excellent. FTxxxx in class A poor. 2. Overdriving the amp. Operators choice or ignorance. 3. Transmit bandwidth. Could be 300-2400 in contests. No adjustment in K3 except by crude EQ. 4. Amount of speech processing. 5. Equalization. Following W2XJ, the future is in the amp containing the complete TX stream. Perhaps only 3 stages, with DAC following by LNA directly driving the LDMOS finals, with bandpass and final filters. All what K4 (or K5 ) does, it to send relevant info to TX via Ethernet. Even better, have all in one box (K5_1500X). Probably the hardware cost is minimal. Nearly all the cost is in software dev't. Ignacy, NO9E -- Sent from: http://elecraft.365791.n2.nabble.com/ From va3on.lists at gmail.com Tue Sep 15 17:52:19 2020 From: va3on.lists at gmail.com (Rod Hardman) Date: Tue, 15 Sep 2020 17:52:19 -0400 Subject: [Elecraft] K4 On-screen documentation In-Reply-To: References: Message-ID: <573542F1-44F1-478E-9845-17939DA688A9@gmail.com> Another one of the many reasons I am an Elecraft fanboy - Their Silicon Valley sense of good User Interface! Documentation and its integration to the physical operation of the product is something the best companies in the Bay Area do very well. Well done, can?t wait to see it. (but Im patient!) /rod On Sep 15, 2020, at 17:22, Rick Tavan wrote: ?I just had the opportunity to review a draft of the K4 on-screen documentation. It's excellent! It's fully hyper-linked with HTML browser capabilities so I could jump around, following links to my heart's content and eventually returning to where I began reading. It includes not only the anticipated explanations of each connector, physical switch, knob, and on-screen button, but also procedural operating instructions on how to do the things one needs to do with a radio. When loaded into a K4, it will be readable like a typical hypertext document with a Table of Contents at the top. Also, you will be able to tap a button to see help on the most-recently used function. So if you do something and aren't sure what happened, just ask and it will pop up an explanation of that control. Or tap something just to queue up help on how it works. Slick! I read the material on a computer browser but it was already white-on-black as I expect it to be on the K4 screen. Function names are bracketed and color-coded to distinguish physical switches, touch controls, and knobs. Hold-functions of switches and touch controls are in yellow instead of white and preceded by a modifier like "Hold" so I think it will be very usable by hams with compromised color vision. There are some handy pictures of panel and screen snippets that illustrate references beyond the shadow of doubt, but not so many as to make the document bulky or awkward. This Help system sets a standard that more technically advanced transceivers and other devices should evolve to meet. This text is also serving as the "seed" for the full, printable manual. I expect that manual to be in typical Elecraft style, with loads of diagrams and highly detailed explanations. I'm not sure I'll need it very often, though, since the on-screen material is so comprehensive. Please be merciful to Elecraft and refrain from immediate calls for a public version. That will follow soon, I'm sure, after the next round of revisions and additions. 73, /Rick N6XI Field Tester/Proof Reader -- Rick Tavan Truckee and Saratoga, CA ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to va3on.lists at gmail.com From w5sv.dave at gmail.com Tue Sep 15 18:37:48 2020 From: w5sv.dave at gmail.com (David F. Reed) Date: Tue, 15 Sep 2020 22:37:48 +0000 Subject: [Elecraft] KPA1500 STBY/OPER per band setting? Message-ID: <6c761b37-f550-f7e5-75f7-ed430ea3b7f4@gmail.com> On my KPA1500, is there a way to save? STBY/OPER per band setting? Thanks & 73 de Dave, W5SV From a.durbin at msn.com Tue Sep 15 18:55:49 2020 From: a.durbin at msn.com (Andy Durbin) Date: Tue, 15 Sep 2020 22:55:49 +0000 Subject: [Elecraft] Why predistortion ? Message-ID: " Now I understand better what the discussion is all about." Who ever coined the term "predistortion" should be taken behind the bicycle shed and introduced to a 2x4. The terminology is the epitome of obfuscation! Andy, k3wyc From elanzl at sbcglobal.net Tue Sep 15 17:54:32 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Tue, 15 Sep 2020 21:54:32 +0000 (UTC) Subject: [Elecraft] 9-13-2020 Elecraft SSB Net References: <1938970051.4867983.1600206872946.ref@mail.yahoo.com> Message-ID: <1938970051.4867983.1600206872946@mail.yahoo.com> Here is the log of stations from last Sunday's 20m SSB Net. Thanks again to all the relay stations who make this net possible. I have saved this file as a rich text format. I am hoping that the question marks are absent in the digest version. Eric WB9JNZ. Elecraft SSB Nets 20 m net 1800Z 14.303.5 Sundays 40 m net 1900Z?? 7.280??? Sundays 80 m net 0100Z??? 3.942?? Sundays The frequency of this net may vary as we are discovering nets appearing on various frequencies. Please tune around to find us. We will start at 3.945 this coming Sunday. Call????????? Name State???? Radio????? Serial #?????????????? QRP????????? Notes WB9JNZ Eric???? IL?????????? K3??????????? 4017???? ?????????????? N6JW?????? John?? CA???????? K3??????????? 936?????? ?????????????? Relay Station K8NU/7?? Carl??? OH/WA Yaesu FT???????????? 2000????? ????? NC0JW??? Jim????? CO???????? KX3???????? 1356???? ?????????????? Relay Station WM6P????? Steve? GA???????? K3S???????? 11453? ?????????????? Relay Station K7BRR??? Bill????? AZ???????? K3S???????? 10939? ?????????????? KO5V?????? Jim????? NM??????? K2/100??? 7225???? ?????????????? Relay Station W1NGA?? Al??????? CO???????? KX2???????? 2002???? ?????????????? K7JG W7QHD?? Kurt??? AZ???????? K2/100??? 1538???? ?????????????? W5SV????? Dave? TX????????? K3??????????? 5354???? ?????????????? AB7CE??? Roy???? MT???????? K2/100??? 40???????? ?????????????? K1NW????? Brian? RI?????????? K3??????????? 4974???? ?????????????? Relay Station AE6JV???? Bill????? NH???????? K3??????????? 6299???? ?????????????? N0MPM?? Mike?? IA?????????? K3S???????? 10514? ?????????????? W4DML?? Doug? TN???????? K3??????????? 6433???? ?????????????? KG9NG??? Sam??? WI????????? KX3/100 1749???? ?????????????? N4NRW?? Roger SC???????? K3??????????? 1318???? ?????????????? KB0MPV Mike?? MN??????? Icom??????? 7300???? ?????????????? 1st Time Check In K6VWE?? Stan?? MI????????? K3??????????? 650?????? ?????????????? N8SBE??? Dave? MI????????? KX2???????? 2615???? ?????????????? K7TPH???? Nicky? ID?????????? KX3???????? 10010? ?????????????? 1st Time Check In KK5LD???? Dan??? TX????????? K3??????????? 986?????? ?????????????? K7JG??????? John?? WA??????? KX3???????? 3519???? ?????????????? K6SBA??? David CA???????? K3??????????? 565?????? ?????????????? N9SRA??? Steve? IL?????????? Icom??????? 7600???? ?????????????? W5SV????? Dave? TX????????? KX2???????? 72???????? 10 Watts????? N6FAI????? Martin CA???????? Yaesu???? FT 950 ?????????????? 1st Time Check In From wes_n7ws at triconet.org Tue Sep 15 15:31:36 2020 From: wes_n7ws at triconet.org (Wes) Date: Tue, 15 Sep 2020 12:31:36 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: <4a2bb1a3-5428-9e88-62be-7f165f5cf004@subich.com> References: <8EF1D262-367C-402B-8 AA6-FA53A6E30DA7@elecraft.com> <90ad2b50-de2b-1621-3e8b-05c7c3243a14@gmail.com> <001601d68a8a$5e2f81e0$1a8e85a0$@erols.com> <4a2bb1a3-5428-9e88-62be-7f165f5cf004@subich.com> Message-ID: Yes. On 9/14/2020 9:10 AM, Joe Subich, W4TV wrote: > On 2020-09-14 7:29 AM, Charlie T wrote: > > >> However, implementing the pre-distortion function IS probably a >> better long-term solution. > > Pre-distortion on a 12V rig only hides the problem.? Any "home > station" rig should have 28/50 V finals *and* then one can make > it even cleaner with pre-distortion.? If necessary, use 50V > capable finals at 50W maximum output for 12V operation and > 150-200 W output when a 48V supply is available. > > 73, > > ?? ... Joe, W4TV From n6kr at elecraft.com Tue Sep 15 19:19:46 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 15 Sep 2020 16:19:46 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <59FE5B6F-319B-44D8-B63D-07042A9D4796@elecraft.com> Here on the ranch we call it "IMD optimization." Wayne > On Sep 15, 2020, at 3:55 PM, Andy Durbin wrote: > > " Now I understand better what the discussion is all about." > > Who ever coined the term "predistortion" should be taken behind the bicycle shed and introduced to a 2x4. The terminology is the epitome of obfuscation! > > Andy, k3wyc From lists at subich.com Tue Sep 15 19:26:20 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Tue, 15 Sep 2020 19:26:20 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <637b03fc-c779-797d-0bab-71258e1fb28a@subich.com> > The terminology is the epitome of obfuscation! Not at all ... "predistortion" has been used in TV broadcasting for more than 40 years - even back in analog TV. It started as simple non-linear amplifiers ("proc amps") perhaps 75 years ago to adjust for the different levels of compression in the amplifier chain with differing signal levels. However, with the advent of solid state amplifiers at VHF and MSDC klystrons/IOTs at UHF additional levels of "predistortion" were employed to cancel the regeneration of the lower sideband from to *IMD* due to operating well beyond the 1 dB compression point. Of course those techniques carried over into digital (HD) TV and were employed by the cellular industry with the conversion from analog to digital. "Predistortion" is a perfectly understandable term to anyone who has a passing familiarity with the behavior of amplifiers in compression. 73, ... Joe, W4TV On 2020-09-15 6:55 PM, Andy Durbin wrote: > " Now I understand better what the discussion is all about." > > Who ever coined the term "predistortion" should be taken behind the bicycle shed and introduced to a 2x4. The terminology is the epitome of obfuscation! > > Andy, k3wyc From mstone36 at tampabay.rr.com Tue Sep 15 19:31:36 2020 From: mstone36 at tampabay.rr.com (Mike Stone) Date: Tue, 15 Sep 2020 19:31:36 -0400 Subject: [Elecraft] KPA-1500/FlexRadio 6400 Message-ID: This is my first post. I am not sure if or where the search function is located. I am running a KPA-1500 and a FlexRadio 6400. The amplifier recognizes the band that the Flex is tuned to but it doesn?t recognize the frequency. Any help would be appreciated. I am not technically proficient with either the Flex or the KPA-1500, so please keep it simple for me. Thanks Mike, N1VE Sent from Mail for Windows 10 From k6dgw at foothill.net Tue Sep 15 19:39:33 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Tue, 15 Sep 2020 16:39:33 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <2affb87c-ef7a-9559-4104-c6dd11a75881@foothill.net> Didn't the term "pre-distortion" originate in the astronomy world where one creates an artificial star with a powerful laser, and then distorts the telescope mirror in real time to minimize atmospheric effects [twinkling]?? That also reduces the twinkle on real nearby stars too.? Maybe that's something else.? Pre-emphasis/De-emphasis in FM broadcast [and analog land mobile FM] is sort of pre-distortion too. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/15/2020 3:55 PM, Andy Durbin wrote: > " Now I understand better what the discussion is all about." > > Who ever coined the term "predistortion" should be taken behind the bicycle shed and introduced to a 2x4. The terminology is the epitome of obfuscation! > > Andy, k3wyc > From rocketnj at gmail.com Tue Sep 15 20:06:40 2020 From: rocketnj at gmail.com (Dave) Date: Tue, 15 Sep 2020 20:06:40 -0400 Subject: [Elecraft] KPA-1500/FlexRadio 6400 In-Reply-To: <20200915233415.1702D149B7E5@mail.qsl.net> References: <20200915233415.1702D149B7E5@mail.qsl.net> Message-ID: Are you using the KXUSB cable from the amp transceiver port to back of Flex USB? Make sure you are in the transceiver port on amp and not AUX port. On Flex USB cable setup make sure to enable Auto Report. Also select advanced and set baud to 38400, 8, none, 1, and flow control none. Cycle amp status to show XCVR FREQ and TX COUNT The top line should show actual radio frequency and bottom line the approximate detected RF frequency when you transmit. If you need assistance, contact me direct at my call at arrl.net and I can do a remote session with you using Team Viewer. Dave wo2x Sent from my waxed string and tin cans. > On Sep 15, 2020, at 7:34 PM, Mike Stone wrote: > > ?This is my first post. I am not sure if or where the search function is located. > > I am running a KPA-1500 and a FlexRadio 6400. The amplifier recognizes the band that the Flex is tuned to but it doesn?t recognize the frequency. Any help would be appreciated. I am not technically proficient with either the Flex or the KPA-1500, so please keep it simple for me. > Thanks > Mike, N1VE > > > 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 rocketnj at gmail.com From jim at audiosystemsgroup.com Tue Sep 15 20:18:26 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 15 Sep 2020 17:18:26 -0700 Subject: [Elecraft] K4 On-screen documentation In-Reply-To: <573542F1-44F1-478E-9845-17939DA688A9@gmail.com> References: <573542F1-44F1-478E-9845-17939DA688A9@gmail.com> Message-ID: <03e0ab2f-db25-3218-19e2-4cfe0b46de55@audiosystemsgroup.com> On 9/15/2020 2:52 PM, Rod Hardman wrote: > Their Silicon Valley sense of good User Interface! Give at least some of the credit for the UI to Chief Engineer and co-owner N6KR, who is a very active operator. I've worked him several times on CW. Also credit engineer K6XX, a world class contester, AND Elecraft's long established practice of very actively listening to their users. Long before I became an Elecraft K2 user in 2003, their email reflector had been running for years, and both owners read it every day. 73, Jim K9YC From jim at audiosystemsgroup.com Tue Sep 15 20:23:57 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 15 Sep 2020 17:23:57 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: On 9/15/2020 3:55 PM, Andy Durbin wrote: > Who ever coined the term "predistortion" should be taken behind the bicycle shed and introduced to a 2x4. The terminology is the epitome of obfuscation! > Hmmm. My EE degree is 56 years old, but the term seems quite clear and descriptive to an old fart like me! It's been done in audio systems for at least four decades, where it uses motional feedback from the loudspeakers to which the systems were carefully matched. The implementation was intended to correct for non-linearities in the loudspeakers, which are far greater than in the electronics. 73, Jim K9YC From kthreebo at gmail.com Tue Sep 15 20:38:20 2020 From: kthreebo at gmail.com (barry halterman) Date: Tue, 15 Sep 2020 20:38:20 -0400 Subject: [Elecraft] K2 issue or is it? Message-ID: Greetings folks. My K2 has a snapping sound when tuning the band regardless of mode and it seems to happen when I am close to a signal...within 4 khz or so. The snapping sound can be very strong sending the s meter soaring. Not only does the s meter go soaring, so do my ears! At this point I am not sure if this is more or less the nature of the beast.... Don't remember reading anything in the reviews about this oddity. Barry K3Bo From pubx1 at af2z.net Tue Sep 15 20:41:07 2020 From: pubx1 at af2z.net (Drew AF2Z) Date: Tue, 15 Sep 2020 20:41:07 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <2affb87c-ef7a-9559-4104-c6dd11a75881@foothill.net> References: <2affb87c-ef7a-9559-4104-c6dd11a75881@foothill.net> Message-ID: That's funny, I was also thinking of astronomy-- the Schmidt-Cassegrain telescope where the inherent aberrations of the relatively simple spherical mirror is corrected (pre-distorted?) with a lens... 73, Drew AF2Z On 09/15/20 18:39, Fred Jensen wrote: > Didn't the term "pre-distortion" originate in the astronomy world where > one creates an artificial star with a powerful laser, and then distorts > the telescope mirror in real time to minimize atmospheric effects > [twinkling]?? That also reduces the twinkle on real nearby stars too. > Maybe that's something else.? Pre-emphasis/De-emphasis in FM broadcast > [and analog land mobile FM] is sort of pre-distortion too. > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 9/15/2020 3:55 PM, Andy Durbin wrote: >> " Now I understand better what the discussion is all about." >> >> Who ever coined the term "predistortion" should be taken behind the >> bicycle shed and introduced to a 2x4.? The terminology is the epitome >> of obfuscation! >> >> 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 pubx1 at af2z.net From k6dgw at foothill.net Tue Sep 15 21:56:21 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Tue, 15 Sep 2020 18:56:21 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: <2affb87c-ef7a-9559-4104-c6dd11a75881@foothill.net> Message-ID: <4b4d6977-fee1-8f35-87bb-4a2b6ed579ba@foothill.net> Isn't that what they did to Hubble originally? 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/15/2020 5:41 PM, Drew AF2Z wrote: > That's funny, I was also thinking of astronomy-- the > Schmidt-Cassegrain telescope where the inherent aberrations of the > relatively simple spherical mirror is corrected (pre-distorted?) with > a lens... > > 73, > Drew > AF2Z > > On 09/15/20 18:39, Fred Jensen wrote: >> Didn't the term "pre-distortion" originate in the astronomy world >> where one creates an artificial star with a powerful laser, and then >> distorts the telescope mirror in real time to minimize atmospheric >> effects [twinkling]?? That also reduces the twinkle on real nearby >> stars too. Maybe that's something else.? Pre-emphasis/De-emphasis in >> FM broadcast [and analog land mobile FM] is sort of pre-distortion too. >> >> 73, >> >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County From pvandyke1953 at gmail.com Tue Sep 15 22:02:42 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Tue, 15 Sep 2020 22:02:42 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: <4b4d6977-fee1-8f35-87bb-4a2b6ed579ba@foothill.net> References: <2affb87c-ef7a-9559-4104-c6dd11a75881@foothill.net> <4b4d6977-fee1-8f35-87bb-4a2b6ed579ba@foothill.net> Message-ID: Well part of the problem with the original Hubble lenses where they were miss ground in the 1st place Paul KB9AVO On Tue, Sep 15, 2020, 9:57 PM Fred Jensen wrote: > Isn't that what they did to Hubble originally? > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 9/15/2020 5:41 PM, Drew AF2Z wrote: > > That's funny, I was also thinking of astronomy-- the > > Schmidt-Cassegrain telescope where the inherent aberrations of the > > relatively simple spherical mirror is corrected (pre-distorted?) with > > a lens... > > > > 73, > > Drew > > AF2Z > > > > On 09/15/20 18:39, Fred Jensen wrote: > >> Didn't the term "pre-distortion" originate in the astronomy world > >> where one creates an artificial star with a powerful laser, and then > >> distorts the telescope mirror in real time to minimize atmospheric > >> effects [twinkling]? That also reduces the twinkle on real nearby > >> stars too. Maybe that's something else. Pre-emphasis/De-emphasis in > >> FM broadcast [and analog land mobile FM] is sort of pre-distortion too. > >> > >> 73, > >> > >> Fred ["Skip"] K6DGW > >> Sparks NV DM09dn > >> Washoe County > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pvandyke1953 at gmail.com From aa4lr at arrl.net Tue Sep 15 22:04:06 2020 From: aa4lr at arrl.net (Bill Coleman) Date: Tue, 15 Sep 2020 22:04:06 -0400 Subject: [Elecraft] K4 remote software question In-Reply-To: References: <118d01d66edb$e78ed8c0$b6ac8a40$@comcast.net> Message-ID: <110D5049-6C98-42A0-AE9B-680D8767EF4F@arrl.net> The word that comes to mind for me is Osborne. But Elecraft didn?t have sales of the K3S halt as soon as they announced the K4. Indeed, the K4 has taken much longer than anticipated to ship, and supply issues have brought an end to much of the K3(S) product line. I?m sure there is much more K3(S) kit they could sell if only they were available. > On Aug 10, 2020, at 2:28 PM, Eric Norris wrote: > > One word: Borland. Local (to Elecraft) techies know their story. > > 73 Eric WD6DBM > > On Mon, Aug 10, 2020, 6:57 AM Dave wrote: > >> Bob >> >> I?ll chime in. >> >> If a company gives a forecasted ship date and misses the mark for any >> reason, including unforeseen circumstances that company would be ?burned at >> the stake?. I have seen it before. So with COVID-19 the big wildcard, it >> is virtually impossible to predict any long term forecast. >> >> Some hams treat a projected date as written in stone. >> >> Dave wo2x >> >> Sent from my waxed string and tin cans. >> >>> On Aug 10, 2020, at 2:04 AM, K5WA wrote: >>> >>> ?After listening to Eric?s EXPO presentation, I thought I heard him say >> Elecraft would have an API for developers to develop remote software for >> the K4. I take that to mean that Elecraft will NOT have their own remote >> software offering so you must buy a K4/0 until software is available from >> 3rd parties. I had understood previously that Elecraft would actually >> have their own software available around the ship date of the K4 so I?ve >> been planning for that in my remote project. I guess I?ll have to switch >> gears and delay my remote project further. I was hoping to have it >> installed this year. >>> >>> >>> >>> On the K4 delivery issue, since the Group 1 purchasers are a known lot, >> it seems that any group that is full and finite should be able to be given >> a number (maybe even the actual/projected S/N) so that, for example, as >> people on this reflector announce that they received S/N 25 and your number >> was 50, you?d have a clue that your rig was getting close. Ideally, with >> supply chains running smoothly, Elecraft could show their production >> projections by S/N or at least an estimated units per week forecast as they >> ramp up. I realize the exact S/N may change due to special circumstances, >> but at least we?d have a ballpark pecking order of when to sit at the >> mailbox looking down the street (longingly) for a delivery truck. I?m not >> aware of a downside to letting folks know their actual or approximate spot >> in line. We all know Gavin Newsome and Dr. Faucci have the largest >> influence on delivery dates but I?d sure like to have a wee bit more >> transparency from Elecraft about our investment. >>> >>> >>> >>> I know there will be folks telling me to sit tight (as I have for the >> last 15+ months), they?re coming, but since late August is still the >> announced best guess for first production shipments, Elecraft surely has >> internal forecasts by now that could be parceled out to folks on the >> waiting list. Heck, I?ll even volunteer to be the body that tabulates the >> list if Elecraft wants to put me to work. (I?m guessing there are 500-1000 >> units in Group 1?) >>> >>> >>> >>> Semi-patiently waiting, ? >>> >>> >>> >>> Bob K5WA >>> >>> >>> >>> >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to rocketnj at gmail.com >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to 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 aa4lr at arrl.net Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 From va3mw at portcredit.net Tue Sep 15 22:14:13 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 15 Sep 2020 22:14:13 -0400 Subject: [Elecraft] KPA-1500/FlexRadio 6400 In-Reply-To: <20200915233322.98024149B61A@mail.qsl.net> References: <20200915233322.98024149B61A@mail.qsl.net> Message-ID: Mike I keep reading what you wrote, but how can you tell the difference? The Band data is the only thing that the KPA500 requires to operate. It really doesn't care about the exact frequency. If you change bands on the 6400 and the KPA500 tracks from 1 band to another, then your installation is fine and you should be good to go. I used a KPA500 for years on a Flex 6300 without issue. For cables, all that is required is a normal 9 pin male-female cable and then a Null Modem Gender Bender adapter (yes, that is what they are called). Mike va3mw On Tue, Sep 15, 2020 at 7:33 PM Mike Stone wrote: > This is my first post. I am not sure if or where the search function is > located. > > I am running a KPA-1500 and a FlexRadio 6400. The amplifier recognizes > the band that the Flex is tuned to but it doesn?t recognize the frequency. > Any help would be appreciated. I am not technically proficient with either > the Flex or the KPA-1500, so please keep it simple for me. > Thanks > Mike, N1VE > > > 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 va3mw at portcredit.net From rocketnj at gmail.com Tue Sep 15 22:19:48 2020 From: rocketnj at gmail.com (Dave) Date: Tue, 15 Sep 2020 22:19:48 -0400 Subject: [Elecraft] KPA-1500/FlexRadio 6400 In-Reply-To: References: Message-ID: <3C5EBF3D-E8AB-4789-BFBF-E758C97B1D78@gmail.com> Hi Mike Actually the KPA1500 needs frequency tracking for the internal antenna tuner. The info I posted should help Mike. He is also welcome to contact me direct and I can assist. 73 Dave wo2x Sent from my waxed string and tin cans. > On Sep 15, 2020, at 10:17 PM, Michael Walker wrote: > > ?Mike > > I keep reading what you wrote, but how can you tell the difference? The > Band data is the only thing that the KPA500 requires to operate. It really > doesn't care about the exact frequency. > > If you change bands on the 6400 and the KPA500 tracks from 1 band to > another, then your installation is fine and you should be good to go. > > I used a KPA500 for years on a Flex 6300 without issue. For cables, all > that is required is a normal 9 pin male-female cable and then a Null Modem > Gender Bender adapter (yes, that is what they are called). > > Mike va3mw > > > > >> On Tue, Sep 15, 2020 at 7:33 PM Mike Stone wrote: >> >> This is my first post. I am not sure if or where the search function is >> located. >> >> I am running a KPA-1500 and a FlexRadio 6400. The amplifier recognizes >> the band that the Flex is tuned to but it doesn?t recognize the frequency. >> Any help would be appreciated. I am not technically proficient with either >> the Flex or the KPA-1500, so please keep it simple for me. >> Thanks >> Mike, N1VE >> >> >> 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 va3mw at portcredit.net > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rocketnj at gmail.com From va3mw at portcredit.net Tue Sep 15 22:21:20 2020 From: va3mw at portcredit.net (Michael Walker) Date: Tue, 15 Sep 2020 22:21:20 -0400 Subject: [Elecraft] KPA-1500/FlexRadio 6400 In-Reply-To: <3C5EBF3D-E8AB-4789-BFBF-E758C97B1D78@gmail.com> References: <3C5EBF3D-E8AB-4789-BFBF-E758C97B1D78@gmail.com> Message-ID: oppsss... my bad! I saw KPA500 (not 1500). Sorry about that. However, the cabling is the same. :) Mike va3mw On Tue, Sep 15, 2020 at 10:19 PM Dave wrote: > Hi Mike > > Actually the KPA1500 needs frequency tracking for the internal antenna > tuner. > > The info I posted should help Mike. He is also welcome to contact me > direct and I can assist. > > 73 > Dave wo2x > > > Sent from my waxed string and tin cans. > > > On Sep 15, 2020, at 10:17 PM, Michael Walker > wrote: > > > > ?Mike > > > > I keep reading what you wrote, but how can you tell the difference? The > > Band data is the only thing that the KPA500 requires to operate. It > really > > doesn't care about the exact frequency. > > > > If you change bands on the 6400 and the KPA500 tracks from 1 band to > > another, then your installation is fine and you should be good to go. > > > > I used a KPA500 for years on a Flex 6300 without issue. For cables, > all > > that is required is a normal 9 pin male-female cable and then a Null > Modem > > Gender Bender adapter (yes, that is what they are called). > > > > Mike va3mw > > > > > > > > > >> On Tue, Sep 15, 2020 at 7:33 PM Mike Stone > wrote: > >> > >> This is my first post. I am not sure if or where the search function is > >> located. > >> > >> I am running a KPA-1500 and a FlexRadio 6400. The amplifier recognizes > >> the band that the Flex is tuned to but it doesn?t recognize the > frequency. > >> Any help would be appreciated. I am not technically proficient with > either > >> the Flex or the KPA-1500, so please keep it simple for me. > >> Thanks > >> Mike, N1VE > >> > >> > >> 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 va3mw at portcredit.net > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to rocketnj at gmail.com > From huntinhmb at coastside.net Tue Sep 15 22:27:24 2020 From: huntinhmb at coastside.net (Brian Hunt) Date: Tue, 15 Sep 2020 19:27:24 -0700 Subject: [Elecraft] Why predistortion ? In-Reply-To: <2affb87c-ef7a-9559-4104-c6dd11a75881@foothill.net> References: <2affb87c-ef7a-9559-4104-c6dd11a75881@foothill.net> Message-ID: <6BB451AE-0C0D-49EA-823B-F7AB4722047F@coastside.net> Usually called adaptive optics these days. The laser is a "guide star". 73, Brian, K0DTJ > On Sep 15, 2020, at 16:39, Fred Jensen wrote: > > Didn't the term "pre-distortion" originate in the astronomy world where one creates an artificial star with a powerful laser, and then distorts the telescope mirror in real time to minimize atmospheric effects [twinkling]? From jim at audiosystemsgroup.com Wed Sep 16 00:54:48 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 15 Sep 2020 21:54:48 -0700 Subject: [Elecraft] KPA-1500/FlexRadio 6400 In-Reply-To: References: <20200915233322.98024149B61A@mail.qsl.net> Message-ID: On 9/15/2020 7:14 PM, Michael Walker wrote: > The > Band data is the only thing that the KPA500 requires to operate. Actually, beginning with the tuner that goes with the K3 and their KPA amps do NOT need band data -- they detect frequency with as little as a 35 wpm dit or a tap on the mic and nearly instantaneously switch to the right band, and, if they have been properly trained per their manual, to the detected spot in the band! My Alpha 87As are also pretty fast. I"ve NEVER used band data with any of these amps or Elecraft tuners (KAT500, KPA500, KPA1500) or with the Alpha 87As. I DO use band data to switch bandpass filters and to switch antennas. 73, Jim K9YC From jim at audiosystemsgroup.com Wed Sep 16 00:55:30 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Tue, 15 Sep 2020 21:55:30 -0700 Subject: [Elecraft] KPA-1500/FlexRadio 6400 In-Reply-To: <3C5EBF3D-E8AB-4789-BFBF-E758C97B1D78@gmail.com> References: <3C5EBF3D-E8AB-4789-BFBF-E758C97B1D78@gmail.com> Message-ID: <1b7d6a02-fd1c-76c9-823f-4a24ceb8e7b8@audiosystemsgroup.com> On 9/15/2020 7:19 PM, Dave wrote: > Actually the KPA1500 needs frequency tracking for the internal antenna tuner. NO, it does not. See my previous post. 73, Jim K9YC From 7s7v at tele2.se Wed Sep 16 05:25:12 2020 From: 7s7v at tele2.se (Samir Popaja) Date: Wed, 16 Sep 2020 12:25:12 +0300 (GMT+03:00) Subject: [Elecraft] Priset for Elecraft K3S-100 References: Message-ID: From k0acp at k0acp.com Wed Sep 16 06:26:57 2020 From: k0acp at k0acp.com (Art Peters) Date: Wed, 16 Sep 2020 06:26:57 -0400 Subject: [Elecraft] Why predistortion ? In-Reply-To: References: Message-ID: <65D5206F-C85D-40EA-AC07-675DFD193C6F@k0acp.com> Hmmmm, my EE degree is only 37 years old and the term also seems clear and descriptive to me too.... hmmm wonder if that also makes me an old fart??? 73 es God. bless, Art/K0ACP Sent from my iPad > On Sep 15, 2020, at 8:24 PM, Jim Brown wrote: > > ?On 9/15/2020 3:55 PM, Andy Durbin wrote: >> Who ever coined the term "predistortion" should be taken behind the bicycle shed and introduced to a 2x4. The terminology is the epitome of obfuscation! > > Hmmm. My EE degree is 56 years old, but the term seems quite clear and descriptive to an old fart like me! > > It's been done in audio systems for at least four decades, where it uses motional feedback from the loudspeakers to which the systems were carefully matched. The implementation was intended to correct for non-linearities in the loudspeakers, which are far greater than in the electronics. > > 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 k0acp at k0acp.com From rocketnj at gmail.com Wed Sep 16 07:24:16 2020 From: rocketnj at gmail.com (Dave) Date: Wed, 16 Sep 2020 07:24:16 -0400 Subject: [Elecraft] KPA-1500/FlexRadio 6400 In-Reply-To: <1b7d6a02-fd1c-76c9-823f-4a24ceb8e7b8@audiosystemsgroup.com> References: <1b7d6a02-fd1c-76c9-823f-4a24ceb8e7b8@audiosystemsgroup.com> Message-ID: Let me rephrase. It needs frequency CAT data if you do not want to transmit into a high SWR or wrong band filters, even for a few milliseconds. I would rather have my station preset the amp to the proper band filters and tuner L & C before transmitting ANY RF into it. This way if I see something on another band or frequency ai want to work ai QSY and call CQ. If CAT is available I would much rather use it than depend on RF detection. I have had the three watt resistor on the KPA1500 heat up and fall off the board rendering the internal frequency counter useless. It took out one of the LDMOS devices. Dave wo2x Sent from my waxed string and tin cans. > On Sep 16, 2020, at 12:58 AM, Jim Brown wrote: > > ?On 9/15/2020 7:19 PM, Dave wrote: >> Actually the KPA1500 needs frequency tracking for the internal antenna tuner. > > NO, it does not. See my previous post. > > 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 rocketnj at gmail.com From k5rhd.73 at gmail.com Wed Sep 16 10:13:51 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Wed, 16 Sep 2020 08:13:51 -0600 Subject: [Elecraft] 2M internal Xverter now 3.5 kc lower Message-ID: <24DBD2E6-1527-42C0-ADF6-0134EBA6730D@gmail.com> Hi group, I have submitted to support requests in the last week to Elecraft directly with no response so I will try here: This summer, I recently bought the K144XV and the Reference lock board for it. The past two mornings I have experienced a drop in RX frequency by 3.5kc. I check into a Net on 144.200. I checked in and after about 20 minutes the net disappeared! I could hear it down a little and tuned to 144.196.50 and picked it back up again. I asked the net control if it had moved and they were all claiming to still be on 144.200! The XVerter is less than 3 months old. Any ideas? 73 K5RHD /randy From k5rhd.73 at gmail.com Wed Sep 16 10:47:17 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Wed, 16 Sep 2020 08:47:17 -0600 Subject: [Elecraft] 2M internal Xverter now 3.5 kc lower In-Reply-To: <6E.62.26871.E24226F5@smtp04.aqua.bos.sync.lan> References: <6E.62.26871.E24226F5@smtp04.aqua.bos.sync.lan> Message-ID: <0D036B8D-7549-4DD0-BACD-DD7C99E83C87@gmail.com> Hi Ben, I bought the K3s used and I am really not sure which TXCO I have. It is a fairly loaded on so maybe-when I crack the case of the 10mHz RefLock module I ordered last week, I will verify what I have. I have the 10mHz reflect module on order as of last week but I have yet to hear anything about it shipping from Elecraft. The radio has been on all night sitting at 144.965.50 and the net was right there this morning. I followed the instructions for installation of the XVerter and the ref-lock and for over a month, the setup was working fine. This just started Monday. 73 K5RHD /randy > On Sep 16, 2020, at 8:41 AM, w4sc wrote: > > Randy, > > I would be interested to know: > > Do you have the high stability 49.380 MHz reference oscillator installed? > Do you have the 10 MHz RefLock option installed and enabled? > > I see you have the 144MHz RefLock installed. There is quite a procedure to install and enable this option. > > I suggest as a test, power your radio on at least an hour before net. Movement of 3.5 KHz is a lot. > > I currently have my K3S at Elecraft for updating and installation of the KXV144 2 meter option and the 144MHz reflock. > > 73 de Ben W4SC > > Sent from Mail for Windows 10 From k5rhd.73 at gmail.com Wed Sep 16 11:02:04 2020 From: k5rhd.73 at gmail.com (Randy Diddel) Date: Wed, 16 Sep 2020 09:02:04 -0600 Subject: [Elecraft] 2M internal Xverter now 3.5 kc lower In-Reply-To: <9EF578A4-671C-416F-92FB-35F6D36F23A3@comcast.net> References: <24DBD2E6-1527-42C0-ADF6-0134EBA6730D@gmail.com> <9EF578A4-671C-416F-92FB-35F6D36F23A3@comcast.net> Message-ID: <98C3BD04-09DF-43AA-8753-0ABD4E9E646B@gmail.com> Hi John, I have two emails in to support, one for this issue and another for something else. Both have gone unanswered. I have also left voicemail for support as well. I am guessing that they are way behind on orders (have an order in for the 10mHZ RefLock too) and support requests due to the lockdown. Hopefully, it is an easy fix. /randy > On Sep 16, 2020, at 8:54 AM, John Stengrevics wrote: > > Hi Randy, > > I have a similar problem, but only 800Hz low. > > The solution was beyond my capabilities. So, I have ordered a K4 and will have it fixed by Elecraft before I sell my K3S. > > Unfortunately, I deleted the email from tech support. I would suggest you call Elecraft and try to be connected to tech support if you want to give it a try. > > 73, > > John > WA1EAZ > > > >> On Sep 16, 2020, at 10:13 AM, Randy Diddel wrote: >> >> Hi group, >> >> I have submitted to support requests in the last week to Elecraft directly with no response so I will try here: >> >> This summer, I recently bought the K144XV and the Reference lock board for it. The past two mornings I have experienced a drop in RX frequency by 3.5kc. I check into a Net on 144.200. I checked in and after about 20 minutes the net disappeared! I could hear it down a little and tuned to 144.196.50 and picked it back up again. I asked the net control if it had moved and they were all claiming to still be on 144.200! The XVerter is less than 3 months old. >> >> Any ideas? >> >> 73 >> >> K5RHD >> >> /randy >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jstengrevics at comcast.net > From cf at cfcorp.com Wed Sep 16 11:47:04 2020 From: cf at cfcorp.com (Cliff Frescura) Date: Wed, 16 Sep 2020 08:47:04 -0700 Subject: [Elecraft] FS W2 Wattmeter HF + VHF/UHF couplers Message-ID: <010101d68c40$a0448910$e0cd9b30$@cfcorp.com> I have for sale: 1. W2 wattmeter with DCHF-2000 1.8 - 54 MHz 2KW coupler, coupler cable, and power cable (power pole end). Modified to turn on when power is applied: $285 2. DCV/U-200 144 MHz - 450 MHz 200W coupler with coupler cable (coupler only): $90 W2 with both couplers : $350 Pictures available upon request. ConUS shipping included via USPS Priority mail. Payment via PayPal or Zelle. No returns. Please reply off list. 73, Cliff K3LL/6 From Lyn at LNAINC.com Wed Sep 16 12:35:29 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Wed, 16 Sep 2020 11:35:29 -0500 Subject: [Elecraft] Why predistortion ? In-Reply-To: <65D5206F-C85D-40EA-AC07-675DFD193C6F@k0acp.com> References: <65D5206F-C85D-40EA-AC07-675DFD193C6F@k0acp.com> Message-ID: <05ce01d68c47$641df5a0$2c59e0e0$@LNAINC.com> Hmmm ... if my math still works ... 2020 - 1965 = 55 (years) Mark me down as a "Not quite as old fart as Jim." 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Art Peters Sent: Wednesday, September 16, 2020 5:27 AM To: jim at audiosystemsgroup.com Cc: Elecraft at mailman.qth.net Subject: Re: [Elecraft] Why predistortion ? Hmmmm, my EE degree is only 37 years old and the term also seems clear and descriptive to me too.... hmmm wonder if that also makes me an old fart??? 73 es God. bless, Art/K0ACP Sent from my iPad > On Sep 15, 2020, at 8:24 PM, Jim Brown wrote: > > ?On 9/15/2020 3:55 PM, Andy Durbin wrote: >> Who ever coined the term "predistortion" should be taken behind the bicycle shed and introduced to a 2x4. The terminology is the epitome of obfuscation! > > Hmmm. My EE degree is 56 years old, but the term seems quite clear and descriptive to an old fart like me! > > It's been done in audio systems for at least four decades, where it uses motional feedback from the loudspeakers to which the systems were carefully matched. The implementation was intended to correct for non-linearities in the loudspeakers, which are far greater than in the electronics. > > 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 k0acp at k0acp.com ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 cf at cfcorp.com Wed Sep 16 14:07:24 2020 From: cf at cfcorp.com (Cliff Frescura) Date: Wed, 16 Sep 2020 11:07:24 -0700 Subject: [Elecraft] FS W2 Wattmeter HF + VHF/UHF couplers [updated] Message-ID: <016f01d68c54$3b36ffd0$b1a4ff70$@cfcorp.com> The DCV/U-200 has been sold. W2 with HF coupler still available. Thanks, Cliff K3LL/6 -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Cliff Frescura Sent: Wednesday, September 16, 2020 8:47 AM To: elecraft at mailman.qth.net Subject: [Elecraft] FS W2 Wattmeter HF + VHF/UHF couplers I have for sale: 1. W2 wattmeter with DCHF-2000 1.8 - 54 MHz 2KW coupler, coupler cable, and power cable (power pole end). Modified to turn on when power is applied: $285 2. DCV/U-200 144 MHz - 450 MHz 200W coupler with coupler cable (coupler only): $90 W2 with both couplers : $350 Pictures available upon request. ConUS shipping included via USPS Priority mail. Payment via PayPal or Zelle. No returns. Please reply off list. 73, Cliff K3LL/6 ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to cf at cfcorp.com From jstengrevics at comcast.net Wed Sep 16 14:42:20 2020 From: jstengrevics at comcast.net (John Stengrevics) Date: Wed, 16 Sep 2020 14:42:20 -0400 Subject: [Elecraft] 2M internal Xverter now 3.5 kc lower In-Reply-To: <0D036B8D-7549-4DD0-BACD-DD7C99E83C87@gmail.com> References: <6E.62.26871.E24226F5@smtp04.aqua.bos.sync.lan> <0D036B8D-7549-4DD0-BACD-DD7C99E83C87@gmail.com> Message-ID: <23FD9CEC-D742-4B4C-8332-5ECC939A97BE@comcast.net> I have the high stability reference oscillator and External RefLock. External oscillator in use and am 800 Hz low. The directions I received from tech support required exposing a capacitor on the RefLock board and adjusting it. Beyond my capabilities. 73, John WA1EAZ > On Sep 16, 2020, at 10:47 AM, Randy Diddel wrote: > > Hi Ben, > > I bought the K3s used and I am really not sure which TXCO I have. It is a fairly loaded on so maybe-when I crack the case of the 10mHz RefLock module I ordered last week, I will verify what I have. I have the 10mHz reflect module on order as of last week but I have yet to hear anything about it shipping from Elecraft. > > The radio has been on all night sitting at 144.965.50 and the net was right there this morning. I followed the instructions for installation of the XVerter and the ref-lock and for over a month, the setup was working fine. This just started Monday. > > 73 > > K5RHD > > /randy > > > >> On Sep 16, 2020, at 8:41 AM, w4sc wrote: >> >> Randy, >> >> I would be interested to know: >> >> Do you have the high stability 49.380 MHz reference oscillator installed? >> Do you have the 10 MHz RefLock option installed and enabled? >> >> I see you have the 144MHz RefLock installed. There is quite a procedure to install and enable this option. >> >> I suggest as a test, power your radio on at least an hour before net. Movement of 3.5 KHz is a lot. >> >> I currently have my K3S at Elecraft for updating and installation of the KXV144 2 meter option and the 144MHz reflock. >> >> 73 de Ben W4SC >> >> Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jstengrevics at comcast.net From hbjr at optilink.us Wed Sep 16 15:25:26 2020 From: hbjr at optilink.us (Hank) Date: Wed, 16 Sep 2020 15:25:26 -0400 Subject: [Elecraft] 2M internal Xverter now 3.5 kc lower In-Reply-To: <98C3BD04-09DF-43AA-8753-0ABD4E9E646B@gmail.com> References: <24DBD2E6-1527-42C0-ADF6-0134EBA6730D@gmail.com> <9EF578A4-671C-416F-92FB-35F6D36F23A3@comcast.net> <98C3BD04-09DF-43AA-8753-0ABD4E9E646B@gmail.com> Message-ID: <68661e4b67326a7ade793e834683e32a@optilink.us> I have had the same problem - It depends where the crystal ends up frequency wise. ?Turn the tech menu on and go to the ref menu item and see what frequency is there. ?If the last 3 digits are well below 500, then the 2 meter offset will be very noticeable. Keith from Elecraft had responded about the issue if you want to try and search on nabble. The TXCO could be off or the synthesizer board in the K3s could be causing issues. ?They ended up replacing the TXCO in mine. Hank K4HYJ ----- Original Message ----- From: Randy Diddel (k5rhd.73 at gmail.com) Date: 09/16/20 11:25 To: John Stengrevics (jstengrevics at comcast.net) Cc: elecraft (elecraft at mailman.qth.net) Subject: Re: [Elecraft] 2M internal Xverter now 3.5 kc lower Hi John, I have two emails in to support, one for this issue and another for something else. Both have gone unanswered. I have also left voicemail for support as well. I am guessing that they are way behind on orders (have an order in for the 10mHZ RefLock too) and support requests due to the lockdown. Hopefully, it is an easy fix. /randy > On Sep 16, 2020, at 8:54 AM, John Stengrevics wrote: > > Hi Randy, > > I have a similar problem, but only 800Hz low. > > The solution was beyond my capabilities. So, I have ordered a K4 and will have it fixed by Elecraft before I sell my K3S. > > Unfortunately, I deleted the email from tech support. ?I would suggest you call Elecraft and try to be connected to tech support if you want to give it a try. > > 73, > > John > WA1EAZ > > > >> On Sep 16, 2020, at 10:13 AM, Randy Diddel wrote: >> >> Hi group, >> >> I have submitted to support requests in the last week to Elecraft directly with no response so I will try here: >> >> This summer, I recently bought the K144XV and the Reference lock board for it. The past two mornings I have experienced a drop in RX frequency by 3.5kc. ?I check into a Net on 144.200. I checked in and after about 20 minutes the net disappeared! ?I could hear it down a little and tuned to 144.196.50 and picked it back up again. I asked the net control if it had moved and they were all claiming to still be on 144.200! The XVerter is less than 3 months old. >> >> Any ideas? >> >> 73 >> >> K5RHD >> >> /randy >> >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to jstengrevics 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 hbjr at optilink.us From n4zr at comcast.net Wed Sep 16 16:28:22 2020 From: n4zr at comcast.net (N4ZR) Date: Wed, 16 Sep 2020 16:28:22 -0400 Subject: [Elecraft] Status of Add-ons for K3? Message-ID: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> I ordered the internal sound card etc. KIO3BUPDT in May, but the last I heard you were trying to gauge demand before deciding whether to continue providing this and other add-ins.? The web site lists the boards with prices and a shopping cart if you search for KIO3BUPDT, but if you follow the links there are no prices. What's the current status? -- 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 c-hawley at illinois.edu Wed Sep 16 19:05:32 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Wed, 16 Sep 2020 23:05:32 +0000 Subject: [Elecraft] K-POD Issues, But I Love It! In-Reply-To: References: , Message-ID: Another small issue I have had is when I am on say 3710 KHz LSB and send the macro FA00007050000;MD3; the K3s goes to 7049.280 KHz CW sometimes. (720 Hz is my offset for CW) If I send FA00007050000;MD3; again right away it goes to 7050 KHz CW Then when I send FA00003710000;MD1; the K3s goes to 3710.720 KHz LSB sometimes Again, if I send FA00003710000;MD1; again right away the K3s goes to 3710 KHz LSB. This has always been the case and has nothing to do with the wrong macro being sent... am I not allowing for something in my macros? Chuck Hawley c-hawley at illinois.edu Amateur Radio, KE9UW ________________________________ From: Charles J. Hawley Sent: Wednesday, September 16, 2020 12:30 PM To: elecraft at mailman.qth.net Subject: K-POD Issues, But I Love It! I love this K-Pod, BUT I?ve sort of worn out 3 of them. The symptom is that the most used buttons get noisy and trigger another macro from another address. When I had the first one do that, I did extensive testing to eliminate rf noise, etc. And a new unit however proved to work perfectly...for about 4 months. When it started doing the same thing Elecraft said it was highly unlikely and especially twice to the same guy, but they sent me another one anyway. Great company! Now that one after a year is doing it again. I rearranged the macros to different buttons of the two macros I mostly use, and it works flawlessly again for those two. I doubt that Elecraft will keep sending me these things, maybe I?m missing something. But all I can come up with is noisy switches, double triggering. Anybody have similar issues? Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad From w4sc at windstream.net Wed Sep 16 19:36:18 2020 From: w4sc at windstream.net (w4sc) Date: Wed, 16 Sep 2020 19:36:18 -0400 Subject: [Elecraft] K-POD Issues, But I Love It! Message-ID: <10.6E.32603.171A26F5@smtp03.aqua.bos.sync.lan> A possible solution: 1) FA00007050000;DE100;MD3; Check DExxx command in programmers manual. 73 de Ben W4SC Sent from Mail for Windows 10 From c-hawley at illinois.edu Wed Sep 16 20:17:02 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Thu, 17 Sep 2020 00:17:02 +0000 Subject: [Elecraft] K-POD Issues, But I Love It! In-Reply-To: <10.6E.32603.171A26F5@smtp03.aqua.bos.sync.lan> References: <10.6E.32603.171A26F5@smtp03.aqua.bos.sync.lan> Message-ID: Thank you. That?s likely another good answer. I got a couple direct emails and the one I tried first was to put the mode in the macro string first. That seems to work with many tries, no mishaps. So that?s where I left it. Thanks for the reply, Jack BMW Motorcycles Chuck KE9UW c-hawley at illinois.edu Sent from my iPad > On Sep 16, 2020, at 6:36 PM, w4sc wrote: > > ?A possible solution: > > 1) FA00007050000;DE100;MD3; > > Check DExxx command in programmers manual. > > 73 de Ben W4SC > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to c-hawley at illinois.edu From w4sc at windstream.net Wed Sep 16 20:32:10 2020 From: w4sc at windstream.net (w4sc) Date: Wed, 16 Sep 2020 20:32:10 -0400 Subject: [Elecraft] K-POD Issues, But I Love It! Message-ID: Seems putting the mode change first in the string would change the mode in the current operating band; then change bands??.. Ben W4SC Sent from Mail for Windows 10 From Mike.Carter at unh.edu Wed Sep 16 21:53:22 2020 From: Mike.Carter at unh.edu (Mike K8CN) Date: Wed, 16 Sep 2020 18:53:22 -0700 (MST) Subject: [Elecraft] K2 issue or is it? In-Reply-To: References: Message-ID: <1600307602969-0.post@n2.nabble.com> Barry, can you provide more detail about the K2 settings when you hear the snapping sounds? For example, does this effect occur only in CW mode, or in USB and LSB modes as well? For which filter settings does it occur (both CW and SSB filter settings)? Is your AGC turned ON or OFF? Does the snapping subside if the RF (actually IF) gain is backed off? Does the snapping subside if the AF gain is backed off? Does this phenomenon occur on all bands or just a few bands? Don, W3FPR, will likely have a few possible causes immediately in mind after repairing hundreds of K2 radios over the years! 73, Mike, K8CN -- Sent from: http://elecraft.365791.n2.nabble.com/ From 7s7v at tele2.se Thu Sep 17 05:56:22 2020 From: 7s7v at tele2.se (Samir Popaja) Date: Thu, 17 Sep 2020 11:56:22 +0200 Subject: [Elecraft] Price for Elecraft K3S-100 Message-ID: <000001d68cd8$cc941650$65bc42f0$@tele2.se> Hello, Is anyone who remember the last price for Elecraft K3S-100 (new) with standard 2.7kHz filter? What price would ine expect for this one in good used condition these days? Anyone remember the last serial numbers of K3S sold by Elecraft? Thanks 73' Samir, sm7vzx From donwilh at embarqmail.com Thu Sep 17 13:28:04 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Thu, 17 Sep 2020 13:28:04 -0400 Subject: [Elecraft] K2 issue or is it? In-Reply-To: References: Message-ID: Barry, That can happen if you ran CAL PLL with the bottom cover off. Try it again. 73, Don W3FPR On 9/15/2020 8:38 PM, barry halterman wrote: > Greetings folks. My K2 has a snapping sound when tuning the band regardless > of mode and it seems to happen when I am close to a signal...within 4 khz > or so. The snapping sound can be very strong sending the s meter soaring. > Not only does the s meter go soaring, so do my ears! > At this point I am not sure if this is more or less the nature of the > beast.... From kd7yz at denstarfarm.us Thu Sep 17 13:29:23 2020 From: kd7yz at denstarfarm.us (Bob KD7YZ) Date: Thu, 17 Sep 2020 13:29:23 -0400 Subject: [Elecraft] K3 Audio from RS232 connection? Message-ID: <450f47fc-ac5c-3476-6d3f-9b7b047b220e@denstarfarm.us> So today I was reaching behind the K3. The board connector that Is/Was the USB input, came out in my hand. It came off the KiO3b board. I was reading the paper that came with the KIO3b install and discovered I can use the RJ-45. Which I did. I currently am controlling the K3 with DxLab's 'Commander'. So the RS232 connection is fine. When I ran up WSJT-X and was attempting to connect, I noticed No Audio. The 'Commander' IS controlling the K3 and quite well. Just can't do FT8 or MSK144 Meteor-Scatter anymore. How do I get digital audio? I gather it's NOT thru the KIO3b RJ-45 . That flimsy connector was SMA soldered and that level I can't do .. or wouldn't try anyway. Skill level deteriorated for that small stuff. Any help on the audio? -- 73 Bob KD7YZ AMSAT LM #901 From nelasat at yahoo.com Thu Sep 17 15:53:50 2020 From: nelasat at yahoo.com (Keith Ennis) Date: Thu, 17 Sep 2020 19:53:50 +0000 (UTC) Subject: [Elecraft] Big thanks to Eric and Wayne from KV5J References: <1666460569.3330479.1600372430226.ref@mail.yahoo.com> Message-ID: <1666460569.3330479.1600372430226@mail.yahoo.com> Big thanks to Eric and Wayne from KV5J! I want to give thanks to Elecraft for adding my Digital Display Units to their "GREAT PRODUCTS FROM OTHER MANUFACTURES" page. I have been an Elecraft product owner since 2009.? I have owned/own several K3/K3s radios, amps, tuners and many pieces of test equipment?over the last 11 years.? Money well spent IMHO. Now I am happy to be able to give back to the Elecraft community with my display units. Thanks again,73 Keith Ennis, KV5J http://www.kv5j.com From rca at rcallen.com Thu Sep 17 16:45:15 2020 From: rca at rcallen.com (Richard Allen) Date: Thu, 17 Sep 2020 15:45:15 -0500 Subject: [Elecraft] Remote control monitors Message-ID: <6B4404A2-75DA-45F0-AE06-AABBF3E283F4@rcallen.com> Can someone please tell me what model pads are used in the Elecraft video from the Dayton 2019 show with Eric presiding? iPads or something else? Thanks, Richard W5SXD From douglas.hagerman at me.com Thu Sep 17 16:48:57 2020 From: douglas.hagerman at me.com (Douglas Hagerman) Date: Thu, 17 Sep 2020 14:48:57 -0600 Subject: [Elecraft] Overlapping K2 upgrades? In-Reply-To: <61327bb4-b768-41f8-4198-d8278001a86c@embarqmail.com> References: <61327bb4-b768-41f8-4198-d8278001a86c@embarqmail.com> Message-ID: <2E1C71D5-5B47-4B5B-B34B-E1B14F76A8BD@me.com> Hi Don. Thanks for the info. I got all the upgrade kits currently listed on the Elecraft site, my radio is #875 so pretty old. There are also several lists of non-Elecraft ?improvements? out there, most of which I am inclined to ignore. :-) Doug. > On 14Sep, 2020, at 10:43 PM, Don Wilhelm wrote: > > Doug, > > If you have the most current upgrade kits, there is no overlap. OTOH if you have older upgrade kits such as the BFO upgrade, there were changes. > > 73, > Don W3FPR > > On 9/14/2020 7:49 PM, Douglas Hagerman via Elecraft wrote: >> I am starting to apply the accumulated Elecraft upgrades to an early K2. Do any of them overlap? Is there a preferred sequence I should follow? From frantz at pwpconsult.com Thu Sep 17 16:53:18 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Thu, 17 Sep 2020 16:53:18 -0400 Subject: [Elecraft] K3 Audio from RS232 connection? In-Reply-To: <450f47fc-ac5c-3476-6d3f-9b7b047b220e@denstarfarm.us> Message-ID: You can use the line in/out connectors in the back of the radio and a "sound card" for your computer. USB sound cards are available inexpensively from Amazon. I have one for my KX3 which I think cost about $5.00. You may need to install a pad to lower the signal level between the line out on the radio and the Mic in on the sound card. In an ideal world, you will get the the RJ-45 connector repaired, either locally with someone who can re-solder the surface mount connector or by getting it repaired by Elecraft. 73 Bill AE6JV On 9/17/20 at 1:29 PM, kd7yz at denstarfarm.us (Bob KD7YZ) wrote: >So today I was reaching behind the K3. The board connector that Is/Was >the USB input, came out in my hand. > >It came off the KiO3b board. > >I was reading the paper that came with the KIO3b install and discovered >I can use the RJ-45. Which I did. > >I currently am controlling the K3 with DxLab's 'Commander'. So the RS232 >connection is fine. > >When I ran up WSJT-X and was attempting to connect, I noticed No Audio. > >The 'Commander' IS controlling the K3 and quite well. Just can't do FT8 >or MSK144 Meteor-Scatter anymore. > > >How do I get digital audio? I gather it's NOT thru the KIO3b RJ-45 . >That flimsy connector was SMA soldered and that level I can't do .. or >wouldn't try anyway. Skill level deteriorated for that small stuff. > > >Any help on the audio? ---------------------------------------------------- Bill Frantz | Art is how we decorate space, 408-348-7900 | music is how we decorate time. www.pwpconsult.com | -Jean-Michel Basquiat From jim.gmforum at gmail.com Thu Sep 17 17:30:43 2020 From: jim.gmforum at gmail.com (Jim Borowski) Date: Thu, 17 Sep 2020 16:30:43 -0500 Subject: [Elecraft] Why predistortion ? Message-ID: <5f63d586.1c69fb81.a7a58.5112@mx.google.com> Hmmm 2 year degree of 45 years. Old farts are kept in Funkenwagnal Jars to keep the essence in tack, so when opened the sound can reverb within the nostrils.?Jim K9TFSent from my T-Mobile 4G LTE Device From msadams60 at gmail.com Thu Sep 17 20:57:52 2020 From: msadams60 at gmail.com (k2qo) Date: Thu, 17 Sep 2020 17:57:52 -0700 (MST) Subject: [Elecraft] XV222 RX is Dead, Need Advice Message-ID: <1600390672882-0.post@n2.nabble.com> During the recent September VHF contest I could only hear the absolute strongest local stations on the XV222/K3 in my rover. It worked FB in June. My XV432 worked just OK as usual. Stations told me I was the loudest signal on the 222 band so the TX side is fine. I put it on the bench and connected my Elecraft N-Gen. When turned on I could barely detect an increase in noise. Tried the same on my XV432 and it went from S0/1 to a solid S9. I'm guessing that I somehow blew up U1 (an ERA6) and/or Q3 (an ATF 34143). I don't have a good scope, RF generator, or RF voltmeter but kinda think replacing both will fix my XV. A bad relay is an option too. Thoughts? I'd like to fix it to have for a spare as I plan on moving non-BigE transverters for 222 and 432. 73, Mark K2QO NF2RS/R for the September VHF -- Sent from: http://elecraft.365791.n2.nabble.com/ From m.cresap at yahoo.com Thu Sep 17 21:44:28 2020 From: m.cresap at yahoo.com (M Cresap) Date: Fri, 18 Sep 2020 01:44:28 +0000 (UTC) Subject: [Elecraft] XV222 RX is Dead, Need Advice In-Reply-To: <1600390672882-0.post@n2.nabble.com> References: <1600390672882-0.post@n2.nabble.com> Message-ID: <1279163287.3725098.1600393468411@mail.yahoo.com> Mark You can check the performance of your XV222 receiver amplifiers with only a common voltmeter. Take off the top cover of the transverter, check the voltage between TP2 and ground (should be between 200 to 275 millivolts). That measures part of the source voltage of Q3, the first receiver amplifier. Find R16 (a 120 ohm resistor) and measure the voltage to ground on each side of the resistor. One side should be 12 volts, the other should be about 5 volts. That measures the series dropping resistor for U1, the second receiver amplifier. R16 will normally be very warm to the touch. If those measurements are correct, the problem is most likely elsewhere. You can check the condition of the local oscillator by measuring the voltage between TP1 and ground. It should be between 1.0 and 1.5 volts. The part and test point locations are shown in the Transverter Owners Manual, page A-4, available on the Elecraft web site. Good luck! 73, Mike, W3IP On Thursday, September 17, 2020, 8:58:35 PM EDT, k2qo wrote: During the recent September VHF contest I could only hear the absolute strongest local stations on the XV222/K3 in my rover. It worked FB in June. My XV432 worked just OK as usual. Stations told me I was the loudest signal on the 222 band so the TX side is fine. I put it on the bench and connected my Elecraft N-Gen. When turned on I could barely detect an increase in noise. Tried the same on my XV432 and it went from S0/1 to a solid S9. I'm guessing that I somehow blew up U1 (an ERA6) and/or Q3 (an ATF 34143). I don't have a good scope, RF generator, or RF voltmeter but kinda think replacing both will fix my XV. A bad relay is an option too. Thoughts? I'd like to fix it to have for a spare as I plan on moving non-BigE transverters for 222 and 432. 73, Mark K2QO NF2RS/R for the September VHF -- 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 m.cresap at yahoo.com From msadams60 at gmail.com Thu Sep 17 22:29:56 2020 From: msadams60 at gmail.com (Mark Adams) Date: Thu, 17 Sep 2020 22:29:56 -0400 Subject: [Elecraft] XV222 RX is Dead, Need Advice In-Reply-To: <1279163287.3725098.1600393468411@mail.yahoo.com> References: <1600390672882-0.post@n2.nabble.com> <1279163287.3725098.1600393468411@mail.yahoo.com> Message-ID: <181A9D9A-3B6C-4BBA-BB96-DC93B7B8390A@gmail.com> Thanks Mike. I built this along with the XV432 a LONG time ago :-) The 432 unit had loads of issues. My rover partner, a EE grad from 1964 who designed military radios and antennas for a living was not impressed with either of these transverters, especially the XV432. For a hobby, he checks the math in QEX articles. One time he told me that the author mis-applied Maxwell?s equation and he ran his own set of differential equations to prove the point. On to the my results: > On Sep 17, 2020, at 9:44 PM, M Cresap wrote: > > Take off the top cover of the transverter, check the voltage between TP2 and ground (should be between 200 to 275 millivolts). That measures part of the source voltage of Q3, the first receiver amplifier. 65mV > > Find R16 (a 120 ohm resistor) and measure the voltage to ground on each side of the resistor. One side should be 12 volts, the other should be about 5 volts. That measures the series dropping resistor for U1, the second receiver amplifier. R16 will normally be very warm to the touch. 13.8 and 4.9V > > If those measurements are correct, the problem is most likely elsewhere. > > You can check the condition of the local oscillator by measuring the voltage between TP1 and ground. It should be between 1.0 and 1.5 volts. 0.92V Additionally, TP1 is 0.76V, not the minimum 1V. The output pin of U1 is 0V, not 3.0-6.0V. > > > > > On Thursday, September 17, 2020, 8:58:35 PM EDT, k2qo wrote: > > > During the recent September VHF contest I could only hear the absolute > strongest local stations on the XV222/K3 in my rover. It worked FB in June. > My XV432 worked just OK as usual. Stations told me I was the loudest signal > on the 222 band so the TX side is fine. > > I put it on the bench and connected my Elecraft N-Gen. When turned on I > could barely detect an increase in noise. Tried the same on my XV432 and it > went from S0/1 to a solid S9. > > I'm guessing that I somehow blew up U1 (an ERA6) and/or Q3 (an ATF 34143). I > don't have a good scope, RF generator, or RF voltmeter but kinda think > replacing both will fix my XV. A bad relay is an option too. > > Thoughts? I'd like to fix it to have for a spare as I plan on moving > non-BigE transverters for 222 and 432. > > 73, > Mark K2QO > NF2RS/R for the September VHF > > > > -- > 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 m.cresap at yahoo.com From arnett.drew at gmail.com Thu Sep 17 22:36:11 2020 From: arnett.drew at gmail.com (Drew Arnett) Date: Fri, 18 Sep 2020 02:36:11 +0000 Subject: [Elecraft] KX3 SWR meter accuracy on 50 MHz? In-Reply-To: References: Message-ID: Tech support said they saw 1.5 to 1 on 50 MHz with their dummy load. HF looked great, of course. They didn't mention if they also used a microwave load. :-) Best regards, Drew n7da On Sun, Sep 13, 2020 at 2:20 AM Drew Arnett wrote: > > I did before shipping in for repair with a directional coupler. Looked great. > > On Sat, Sep 12, 2020 at 7:13 PM Nr4c wrote: > > > > Well, it depends on the ?Dummy? load. Have you swept the load with a good spectrum analyzer or VNA? It may not be 50 ohms at 50 MHz > > > > > > > > Sent from my iPhone > > ...nr4c. bill > > > > > > > On Sep 12, 2020, at 11:51 AM, Drew Arnett wrote: > > > > > > ?After getting my KX3 back from repair (before my next planned contest > > > operation, thanks!), I ran some measurements to both see how great the > > > repairs were and to get a new baseline for future measurements. TX > > > efficiency problem was gone. > > > > > > However, I'm left to wonder about the accuracy of the internal SWR > > > meter for 50 MHz. Using a microwave dummy load of adequate power > > > rating and just a coaxial adapter, I measured the following: > > > > > > 14 MHz @ 1 W setting > > > VSWR 1.0 to 1 (per KX3) > > > > > > 28 MHz @ 1 W setting > > > VSWR 1.0 to 1 > > > > > > 50 MHz @ 1 W setting > > > VSWR 1.5 to 1 > > > > > > 50 MHz @ 4 W setting > > > VSWR 1.6 to 1 > > > > > > Not horrible. Not great. > > > > > > It's fine if it's not as accurate on 50 MHz. I just want to know if > > > this is normal. Has anyone else looked at that and can share what > > > they see? > > > > > > Thanks and best regards, > > > > > > Drew > > > n7da > > > ______________________________________________________________ > > > Elecraft mailing list > > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > > Help: http://mailman.qth.net/mmfaq.htm > > > Post: mailto:Elecraft at mailman.qth.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 Fri Sep 18 00:23:57 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 18 Sep 2020 00:23:57 -0400 Subject: [Elecraft] XV222 RX is Dead, Need Advice In-Reply-To: <1600390672882-0.post@n2.nabble.com> References: <1600390672882-0.post@n2.nabble.com> Message-ID: <4cabd350-ba14-ea83-dfad-d172a79a2cea@embarqmail.com> Mark, Replacing those components will normally restore receive. 73 Don W3FPR On 9/17/2020 8:57 PM, k2qo wrote: > During the recent September VHF contest I could only hear the absolute > strongest local stations on the XV222/K3 in my rover. It worked FB in June. > My XV432 worked just OK as usual. Stations told me I was the loudest signal > on the 222 band so the TX side is fine. > > I put it on the bench and connected my Elecraft N-Gen. When turned on I > could barely detect an increase in noise. Tried the same on my XV432 and it > went from S0/1 to a solid S9. > > I'm guessing that I somehow blew up U1 (an ERA6) and/or Q3 (an ATF 34143). I > don't have a good scope, RF generator, or RF voltmeter but kinda think > replacing both will fix my XV. A bad relay is an option too. > From alan at elecraft.com Fri Sep 18 01:09:09 2020 From: alan at elecraft.com (Alan Bloom) Date: Thu, 17 Sep 2020 23:09:09 -0600 Subject: [Elecraft] Cheap keyer paddle? Message-ID: I am currently "sheltering in place" far from home and would like to set up a station here. I'm an 11-hour drive from home so I need to buy all new accessories. I already have a good Vibroplex key paddle at home so I don't need another high-quality one. The good ones seem to start at around $175, which is way more than I want to pay for temporary use. I once made a homebrew paddle made out of bent aluminum sheet metal and a pair of micro switches for the dot and dash contacts. ("A Lightweight Homemade Keyer Paddle", QST, July 2009). I was satisfied with that paddle, so you can see that I am not obsessive about "feel". So who makes a decent, inexpensive key paddle? (By the way, I don't need the iambic feature, so a single-lever model would be fine.) Alan N1AL From ernie at netvision.net.il Fri Sep 18 02:23:17 2020 From: ernie at netvision.net.il (TL_Netvision) Date: Fri, 18 Sep 2020 09:23:17 +0300 Subject: [Elecraft] KPA500 Alignment after repair Message-ID: <002301d68d84$32b43a40$981caec0$@netvision.net.il> Hello all, I am about to replace myself the 2 FETs in the amp, praying for no other damages. Not being experienced on the subject at all, can anyone elaborate please on the procedure to properly adjust & align the amp before usage? TIA & be safe Isaac, 4Z1TL (4X2BESAFE) -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus From ab7echo at gmail.com Fri Sep 18 03:36:22 2020 From: ab7echo at gmail.com (David Gilbert) Date: Fri, 18 Sep 2020 00:36:22 -0700 Subject: [Elecraft] Cheap keyer paddle? In-Reply-To: References: Message-ID: There are several cheapies on eBay for about $35.? You'd probably need to stick it down to something heavier because they look pretty light. Dave?? AB7E On 9/17/2020 10:09 PM, Alan Bloom wrote: > I am currently "sheltering in place" far from home and would like to set > up a station here. I'm an 11-hour drive from home so I need to buy all > new accessories. > > I already have a good Vibroplex key paddle at home so I don't need > another high-quality one. The good ones seem to start at around $175, > which is way more than I want to pay for temporary use. I once made a > homebrew paddle made out of bent aluminum sheet metal and a pair of > micro switches for the dot and dash contacts. ("A Lightweight Homemade > Keyer Paddle", QST, July 2009). I was satisfied with that paddle, so > you can see that I am not obsessive about "feel". > > So who makes a decent, inexpensive key paddle? (By the way, I don't > need the iambic feature, so a single-lever model would be fine.) > > Alan N1AL From kkf4kfg at jarsprep.net Fri Sep 18 07:16:51 2020 From: kkf4kfg at jarsprep.net (kk4kfg) Date: Fri, 18 Sep 2020 07:16:51 -0400 Subject: [Elecraft] Cheap keyer paddle? In-Reply-To: References: Message-ID: I have been very happy with a key from CW Morse (cwmorse.us) in Texas. The shipping was lightening fast and there should be one that would fot your needs. The link is below if it works. https://cwmorse.us/ 73, Aaron kk4kfg From 73.de.ne1ee at gmail.com Fri Sep 18 07:26:31 2020 From: 73.de.ne1ee at gmail.com (Rich NE1EE) Date: Fri, 18 Sep 2020 07:26:31 -0400 Subject: [Elecraft] Cheap keyer paddle? In-Reply-To: References: Message-ID: <5f649971.1c69fb81.32e6.bc28@mx.google.com> On 2020-09-17 23:09:-0600, Alan Bloom wrote: >So who makes a decent, inexpensive key paddle? (By the way, I don't >need the iambic feature, so a single-lever model would be fine.) > >Alan N1AL I keep forgetting that this list is different from all the rest I sub to...the replies don't go to the list...not that this one needed to... Depends on what you call cheap. I've used CWMorse to good advantage. From w2up at comcast.net Fri Sep 18 08:20:12 2020 From: w2up at comcast.net (Barry) Date: Fri, 18 Sep 2020 05:20:12 -0700 (MST) Subject: [Elecraft] Cheap keyer paddle? In-Reply-To: <5f649971.1c69fb81.32e6.bc28@mx.google.com> References: <5f649971.1c69fb81.32e6.bc28@mx.google.com> Message-ID: <1600431612728-0.post@n2.nabble.com> You could use your keyboard with N1MM. Won't cost you anything. Barry W2UP -- Sent from: http://elecraft.365791.n2.nabble.com/ From msadams60 at gmail.com Fri Sep 18 09:08:05 2020 From: msadams60 at gmail.com (Mark Adams) Date: Fri, 18 Sep 2020 09:08:05 -0400 Subject: [Elecraft] XV222 RX is Dead, Need Advice In-Reply-To: <4cabd350-ba14-ea83-dfad-d172a79a2cea@embarqmail.com> References: <1600390672882-0.post@n2.nabble.com> <4cabd350-ba14-ea83-dfad-d172a79a2cea@embarqmail.com> Message-ID: <45C5CC10-63BE-4A48-8F84-FE75B9D1B26E@gmail.com> Thanks Don, I had a MAR6 in stock and installed it after breakfast. There is now a noticeable change in RX noise with the noise bridge turned on, but nowhere near what is needed, so I?ll order a Q3. 73, Mark K2QO FN03ra > On Sep 18, 2020, at 12:23 AM, Don Wilhelm wrote: > > Mark, > > Replacing those components will normally restore receive. > > 73 > Don W3FPR > > On 9/17/2020 8:57 PM, k2qo wrote: >> During the recent September VHF contest I could only hear the absolute >> strongest local stations on the XV222/K3 in my rover. It worked FB in June. >> My XV432 worked just OK as usual. Stations told me I was the loudest signal >> on the 222 band so the TX side is fine. >> I put it on the bench and connected my Elecraft N-Gen. When turned on I >> could barely detect an increase in noise. Tried the same on my XV432 and it >> went from S0/1 to a solid S9. >> I'm guessing that I somehow blew up U1 (an ERA6) and/or Q3 (an ATF 34143). I >> don't have a good scope, RF generator, or RF voltmeter but kinda think >> replacing both will fix my XV. A bad relay is an option too. From msadams60 at gmail.com Fri Sep 18 09:58:16 2020 From: msadams60 at gmail.com (Mark Adams) Date: Fri, 18 Sep 2020 09:58:16 -0400 Subject: [Elecraft] XV222 RX is Dead, Need Advice In-Reply-To: <2123244473.3736671.1600397692061@mail.yahoo.com> References: <1600390672882-0.post@n2.nabble.com> <1279163287.3725098.1600393468411@mail.yahoo.com> <181A9D9A-3B6C-4BBA-BB96-DC93B7B8390A@gmail.com> <2123244473.3736671.1600397692061@mail.yahoo.com> Message-ID: <7F93EA3D-450C-4E59-8BD2-256896B6D01A@gmail.com> Mike, I?ve done some of these mods, but not all. I replaced the MAR6 this morning and it now hears a little better, but the S-meter on the K3 is not moving. Q3 is next. AND I JUST REMEMBERED!!! When I was setting up the rover before the contest, I was keying all the equipment with the antennas attached to check power output, listen to local beacons, etc. The XV222 was receiving OK. I then transmitted and in a few seconds blew the 5A fuse in my WestMountain Radio distribution block. I intended on commenting it to a 10A PP connector but ?missed?. I replaced the fuse and went roving. I wonder whether maybe that caused some TX energy to get back into the RX circuit? Oh well, the MAR6 is replaced and I?ll get a new ATF. The crazy thing is that I did not think of this until last night when I had everything on the bench. 73, Mark K2QO FN03ra > On Sep 17, 2020, at 10:54 PM, M Cresap wrote: > > Hi Mark > > Yes, the XV432 transverter needed a few fixes to work reliably. NT4RT wrote an excellent article on how to improve the performance of the XV432 (which I see you have found already). My XV432 is extensively modified with my own fixes, most of NT4RT's fixes, and K9YC's recommended "Pin 1 problem" fixes (i.e. rebuild the back panel). > > For the XV222, the first thing I would do to hook up your noise generator to the RF input and try to adjust R13 for about 250 mV on TP2. See if that improves your ability to receive the noise generator. I found that the gain varies a LOT as R13 is adjusted. Be careful not to mistakenly tweak R10, which is nearby! Don't ask how I know that :-( > > Let me know if that helps. > > 73, Mike, W3IP > > On Thursday, September 17, 2020, 10:29:59 PM EDT, Mark Adams wrote: > > > Thanks Mike. I built this along with the XV432 a LONG time ago :-) The 432 unit had loads of issues. My rover partner, a EE grad from 1964 who designed military radios and antennas for a living was not impressed with either of these transverters, especially the XV432. For a hobby, he checks the math in QEX articles. One time he told me that the author mis-applied Maxwell?s equation and he ran his own set of differential equations to prove the point. > > On to the my results: > > >> On Sep 17, 2020, at 9:44 PM, M Cresap > wrote: >> >> Take off the top cover of the transverter, check the voltage between TP2 and ground (should be between 200 to 275 millivolts). That measures part of the source voltage of Q3, the first receiver amplifier. > > > 65mV > > >> >> Find R16 (a 120 ohm resistor) and measure the voltage to ground on each side of the resistor. One side should be 12 volts, the other should be about 5 volts. That measures the series dropping resistor for U1, the second receiver amplifier. R16 will normally be very warm to the touch. > > > 13.8 and 4.9V > > >> >> If those measurements are correct, the problem is most likely elsewhere. >> >> You can check the condition of the local oscillator by measuring the voltage between TP1 and ground. It should be between 1.0 and 1.5 volts. > > > 0.92V > > > Additionally, TP1 is 0.76V, not the minimum 1V. > The output pin of U1 is 0V, not 3.0-6.0V. > > > > >> >> >> >> >> On Thursday, September 17, 2020, 8:58:35 PM EDT, k2qo > wrote: >> >> >> During the recent September VHF contest I could only hear the absolute >> strongest local stations on the XV222/K3 in my rover. It worked FB in June. >> My XV432 worked just OK as usual. Stations told me I was the loudest signal >> on the 222 band so the TX side is fine. >> >> I put it on the bench and connected my Elecraft N-Gen. When turned on I >> could barely detect an increase in noise. Tried the same on my XV432 and it >> went from S0/1 to a solid S9. >> >> I'm guessing that I somehow blew up U1 (an ERA6) and/or Q3 (an ATF 34143). I >> don't have a good scope, RF generator, or RF voltmeter but kinda think >> replacing both will fix my XV. A bad relay is an option too. >> >> Thoughts? I'd like to fix it to have for a spare as I plan on moving >> non-BigE transverters for 222 and 432. >> >> 73, >> Mark K2QO >> NF2RS/R for the September VHF >> >> >> >> -- >> 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 m.cresap at yahoo.com > > From d.cutter at ntlworld.com Fri Sep 18 10:08:38 2020 From: d.cutter at ntlworld.com (CUTTER DAVID) Date: Fri, 18 Sep 2020 15:08:38 +0100 (BST) Subject: [Elecraft] Cheap keyer paddle? In-Reply-To: References: Message-ID: <1583429020.812648.1600438118115@mail2.virginmedia.com> There is a new manufacturer advertising in Sprat magazine. Model UMPP-1 is advertised bench model and there are others $60 to US. Not quite "cheap" but very small and good for travelling. www.umpp-cw.com gm0eul at gmail.com 73 David G3UNA/G6CP > On 18 September 2020 at 08:36 David Gilbert wrote: > > > > > There are several cheapies on eBay for about $35.? You'd probably need > to stick it down to something heavier because they look pretty light. > > Dave?? AB7E > > > > On 9/17/2020 10:09 PM, Alan Bloom wrote: > > I am currently "sheltering in place" far from home and would like to set > > up a station here. I'm an 11-hour drive from home so I need to buy all > > new accessories. > > > > I already have a good Vibroplex key paddle at home so I don't need > > another high-quality one. The good ones seem to start at around $175, > > which is way more than I want to pay for temporary use. I once made a > > homebrew paddle made out of bent aluminum sheet metal and a pair of > > micro switches for the dot and dash contacts. ("A Lightweight Homemade > > Keyer Paddle", QST, July 2009). I was satisfied with that paddle, so > > you can see that I am not obsessive about "feel". > > > > So who makes a decent, inexpensive key paddle? (By the way, I don't > > need the iambic feature, so a single-lever model would be fine.) > > > > Alan N1AL > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 n6tv at arrl.net Fri Sep 18 12:00:33 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Fri, 18 Sep 2020 09:00:33 -0700 Subject: [Elecraft] KPA-1500/FlexRadio 6400 In-Reply-To: <20200915233321.4EEFD149B562@mail.qsl.net> References: <20200915233321.4EEFD149B562@mail.qsl.net> Message-ID: Hi Mike, This seems to be a duplicate post (see http://elecraft.365791.n2.nabble.com/KPA-1500-FlexRadio-6400-td7665007.html), though I'm not sure if your questions were fully answered the first time. First, to search the archives of this reflector, go to http://elecraft.365791.n2.nabble.com/Elecraft-f365791.topics.html and use the search box, top right. To get the KPA-1500 to track the exact frequency of the Flex (before you do any transmitting), you need to set up a proper connection between the 3.5mm stereo jack on the back of the KPA1500 labeled "XCVR SERIAL" and one of the common USB Type A connectors on the back of the Flex. 1. Use any of the following to make a serial connection between the two devices: - FTDI USB-to-Serial adapter + Elecraft KXSER cable - Elecraft KXUSB cable - Serial Box USB (https://bit.ly/S-BOX) + stock serial and stereo cables 2. For amp. keying, connect an ordinary RCA male-to-male patch cable between the RCA connector on the back of the KPA1500 labeled "KEY IN" and the RCA connector on the back of the Flex labeled "TX1" 3. In the KPA1500 Menu, set RADIO TYPE: SERIAL SERIAL SPEED XCVR: 9600 RADIO POLL: ON 4. In the FlexRadio SmartSDR Setup, select the new serial adapter that appears when connected to the back of the Flex *Settings | USB Cables* Cable Type: *CAT* Source: *TX Slice* Auto-report: *Disabled* Advanced: *9600,8,N,1* Flow Control: *None **Settings | Radio Setup* Transmit tab RCA TX1: 5 ms Enabled The KPA1500 and its tuner (if enabled) will now automatically track the exact frequency of the Flex, and be keyed by the Flex when it goes into transmit. You can verify the frequency by setting TECH MODE to ENABLED in the KPA1500 menu, then scroll the STATUS page of the KPA1500 LCD until you see XCVR FREQ and TX COUNT displayed. XCVR FREQ is the frequency reported by the radio over the Serial connection. TX COUNT is the approximate frequency detected by the KPA1500's built-in frequency counter whenever you transmit. If you have trouble making this work, feel free to contact me directly. 73, Bob, N6TV https://bit.ly/Y-BOX https://bit.ly/S-BOX On Tue, Sep 15, 2020 at 4:33 PM Mike Stone wrote: > This is my first post. I am not sure if or where the search function is > located. > > I am running a KPA-1500 and a FlexRadio 6400. The amplifier recognizes > the band that the Flex is tuned to but it doesn?t recognize the frequency. > Any help would be appreciated. I am not technically proficient with either > the Flex or the KPA-1500, so please keep it simple for me. > Thanks > Mike, N1VE > > > 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 n6tv at arrl.net From k6dgw at foothill.net Fri Sep 18 14:39:29 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Fri, 18 Sep 2020 11:39:29 -0700 Subject: [Elecraft] Cheap keyer paddle? In-Reply-To: References: Message-ID: <5dfc7efa-8009-2d85-aac4-29a0e7e7d575@foothill.net> American Morse Equipment.? Obviously depends on your definition of "cheap," but I use their Porta-Paddle with my K2 in the field. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/17/2020 10:09 PM, Alan Bloom wrote: > I am currently "sheltering in place" far from home and would like to set > up a station here. I'm an 11-hour drive from home so I need to buy all > new accessories. > > I already have a good Vibroplex key paddle at home so I don't need > another high-quality one. The good ones seem to start at around $175, > which is way more than I want to pay for temporary use. I once made a > homebrew paddle made out of bent aluminum sheet metal and a pair of > micro switches for the dot and dash contacts. ("A Lightweight Homemade > Keyer Paddle", QST, July 2009). I was satisfied with that paddle, so > you can see that I am not obsessive about "feel". > > So who makes a decent, inexpensive key paddle? (By the way, I don't > need the iambic feature, so a single-lever model would be fine.) > > Alan N1AL > From k7sss at aol.com Fri Sep 18 15:19:36 2020 From: k7sss at aol.com (k7sss at aol.com) Date: Fri, 18 Sep 2020 19:19:36 +0000 (UTC) Subject: [Elecraft] Cheap keyer paddle? In-Reply-To: <5dfc7efa-8009-2d85-aac4-29a0e7e7d575@foothill.net> References: <5dfc7efa-8009-2d85-aac4-29a0e7e7d575@foothill.net> Message-ID: <667460778.4008648.1600456776727@mail.yahoo.com> Hi,Here is a club link for a portable paddle.http://www.w8cso.org/teneke.php?73??Jim HK7SSS?In a message dated 9/18/2020 11:41:51 AM Pacific Standard Time, k6dgw at foothill.net writes:? On 9/17/2020 10:09 PM, Alan Bloom wrote: > I am currently "sheltering in place" far from home and would like to set > up a station here.? I'm an 11-hour drive from home so I need to buy all > new accessories. > > I already have a good Vibroplex key paddle at home so I don't need > another high-quality one.? The good ones seem to start at around $175, > which is way more than I want to pay for temporary use.? I once made a > homebrew paddle made out of bent aluminum sheet metal and a pair of > micro switches for the dot and dash contacts. ("A Lightweight Homemade > Keyer Paddle", QST, July 2009).? I was satisfied with that paddle, so > you can see that I am not obsessive about "feel". > > So who makes a decent, inexpensive key paddle?? (By the way, I don't > need the iambic feature, so a single-lever model would be fine.) > > Alan N1AL > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to k7sss at aol.com From hs0zed at gmail.com Fri Sep 18 17:21:31 2020 From: hs0zed at gmail.com (Martin Sole) Date: Sat, 19 Sep 2020 00:21:31 +0300 Subject: [Elecraft] Remote control monitors In-Reply-To: <6B4404A2-75DA-45F0-AE06-AABBF3E283F4@rcallen.com> References: <6B4404A2-75DA-45F0-AE06-AABBF3E283F4@rcallen.com> Message-ID: <535F0D2C-8349-4277-8F7E-65DA441F9802@gmail.com> I recall, Microsoft surface tablet running Linux on a virtual machine, was mentioned in a video some time back. Martin HS0ZED Sent from my iPhone > On 17 Sep 2020, at 23:46, Richard Allen wrote: > > ?Can someone please tell me what model pads are used in the Elecraft video from the Dayton 2019 show with Eric presiding? iPads or something else? > > Thanks, Richard W5SXD > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rca at rcallen.com Fri Sep 18 17:48:44 2020 From: rca at rcallen.com (Richard Allen) Date: Fri, 18 Sep 2020 16:48:44 -0500 Subject: [Elecraft] Remote control monitors In-Reply-To: <535F0D2C-8349-4277-8F7E-65DA441F9802@gmail.com> References: <535F0D2C-8349-4277-8F7E-65DA441F9802@gmail.com> Message-ID: <9F293309-2B54-45A3-8B07-895AE780F6D7@rcallen.com> Hi Martin, I got that from the video except I missed the ?Microsoft surface tablet? part. Thanks, Richard W5SXD > On Sep 18, 2020, at 4:21 PM, Martin Sole wrote: > > ?I recall, Microsoft surface tablet running Linux on a virtual machine, was mentioned in a video some time back. > > Martin > HS0ZED > > > Sent from my iPhone > >> On 17 Sep 2020, at 23:46, Richard Allen wrote: >> >> ?Can someone please tell me what model pads are used in the Elecraft video from the Dayton 2019 show with Eric presiding? iPads or something else? >> >> Thanks, Richard W5SXD >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 wes_n7ws at triconet.org Fri Sep 18 18:44:06 2020 From: wes_n7ws at triconet.org (Wes) Date: Fri, 18 Sep 2020 15:44:06 -0700 Subject: [Elecraft] KX3 SWR meter accuracy on 50 MHz? In-Reply-To: References: Message-ID: There are so many variables here that it kind of defies analysis.? First of all, the KX3 uses a BNC connector. Almost always, as you have done, connecting to a good load, that will handle some power, probably requires adapting to type N.? A reasonable load might be something like a NARDA 366NM which has a VSWR spec of 1.2:1.? I personally use a series of Narda 766 attenuators which are 1.1:1.? Adding a typical BNC to type N adapter, Pasternack PE9002, which is rated at 1.3:1.? (A lot of manufacturers like Amphenol don't even rate for VSWR) Converting these two values to reflection coefficient, adding them (worst case) and converting back to VSWR gives 1.57:1. So the load could be the 1.5:1 that is measured.? But this is only a part of the issue.? The KX3 VSWR bridge has unknown directivity and sensitivity since it uses diodes at very low power.? Furthermore, it's not driven by a good 50 ohm source, the amplifier output is unknown and there is a BPF in the circuit.? At the output side there are at minimum some relays before getting to the output spigot. In summary, I wouldn't worry about it. If you really want to know what the load Z (antenna) is, measure it with an appropriate instrument calibrated with known standards. Wes? N7WS First, On 9/17/2020 7:36 PM, Drew Arnett wrote: > Tech support said they saw 1.5 to 1 on 50 MHz with their dummy load. > HF looked great, of course. They didn't mention if they also used a > microwave load. :-) > > Best regards, > > Drew > n7da > > On Sun, Sep 13, 2020 at 2:20 AM Drew Arnett wrote: >> I did before shipping in for repair with a directional coupler. Looked great. >> >> On Sat, Sep 12, 2020 at 7:13 PM Nr4c wrote: >>> Well, it depends on the ?Dummy? load. Have you swept the load with a good spectrum analyzer or VNA? It may not be 50 ohms at 50 MHz >>> >>> >>> >>> Sent from my iPhone >>> ...nr4c. bill >>> >>> >>>> On Sep 12, 2020, at 11:51 AM, Drew Arnett wrote: >>>> >>>> ?After getting my KX3 back from repair (before my next planned contest >>>> operation, thanks!), I ran some measurements to both see how great the >>>> repairs were and to get a new baseline for future measurements. TX >>>> efficiency problem was gone. >>>> >>>> However, I'm left to wonder about the accuracy of the internal SWR >>>> meter for 50 MHz. Using a microwave dummy load of adequate power >>>> rating and just a coaxial adapter, I measured the following: >>>> >>>> 14 MHz @ 1 W setting >>>> VSWR 1.0 to 1 (per KX3) >>>> >>>> 28 MHz @ 1 W setting >>>> VSWR 1.0 to 1 >>>> >>>> 50 MHz @ 1 W setting >>>> VSWR 1.5 to 1 >>>> >>>> 50 MHz @ 4 W setting >>>> VSWR 1.6 to 1 >>>> >>>> Not horrible. Not great. >>>> >>>> It's fine if it's not as accurate on 50 MHz. I just want to know if >>>> this is normal. Has anyone else looked at that and can share what >>>> they see? >>>> >>>> Thanks and best regards, >>>> >>>> Drew >>>> n7da >>>> ______________________________________________________________ From kl7uw at acsalaska.net Fri Sep 18 20:28:49 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Fri, 18 Sep 2020 16:28:49 -0800 Subject: [Elecraft] K3: KIO3 digital board failed (I think) Message-ID: <202009190028.08J0SnFW001402@mail42c28.carrierzone.com> Working with Rob at Elecraft Service, I removed and checked the KIO3 Digital I/F board and found L1 blown. L2, L3, R12, and R13 are all good. L1 is on the ground lead from the sub-D9 connector, pin 5 to ground in the K3. Definitely blown as there is a carbon smudge next to L1. I installed a wire jumper but still inoperational. Going to return the entire KIO3 unit to Elecraft for repair. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From norrislawfirm2 at gmail.com Sat Sep 19 00:42:44 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Fri, 18 Sep 2020 21:42:44 -0700 Subject: [Elecraft] Cheap keyer paddle? In-Reply-To: <5dfc7efa-8009-2d85-aac4-29a0e7e7d575@foothill.net> References: <5dfc7efa-8009-2d85-aac4-29a0e7e7d575@foothill.net> Message-ID: I am also a big fan of the PortaPaddle and PortaPaddle II, using it with all Elecraft portable rigs. It weighs nothing, is nearly indestructible, and is well made. 73 Eric WD6DBM On Fri, Sep 18, 2020, 11:39 AM Fred Jensen wrote: > American Morse Equipment. Obviously depends on your definition of > "cheap," but I use their Porta-Paddle with my K2 in the field. > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > > From nr4c at widomaker.com Sat Sep 19 07:28:20 2020 From: nr4c at widomaker.com (Nr4c) Date: Sat, 19 Sep 2020 07:28:20 -0400 Subject: [Elecraft] K3: KIO3 digital board failed (I think) In-Reply-To: <202009190028.08J0SnFW001402@mail42c28.carrierzone.com> References: <202009190028.08J0SnFW001402@mail42c28.carrierzone.com> Message-ID: <212B1942-3913-4903-B5A6-1C815A3FF5B9@widomaker.com> Had the same thing a few years ago. I plugged the PP into the K3 only it was offset a bit. Nanacged to get the cable Red on the K3 Black. Smelled smoke (P3 cable insulation) and blew L1 on the RS232 circuit. Sent from my iPhone ...nr4c. bill > On Sep 18, 2020, at 8:31 PM, Edward R Cole wrote: > > ?Working with Rob at Elecraft Service, I removed and checked the KIO3 Digital I/F board and found L1 blown. L2, L3, R12, and R13 are all good. L1 is on the ground lead from the sub-D9 connector, pin 5 to ground in the K3. Definitely blown as there is a carbon smudge next to L1. I installed a wire jumper but still inoperational. > > Going to return the entire KIO3 unit to Elecraft for repair. > > 73, Ed - KL7UW > http://www.kl7uw.com > Dubus-NA Business mail: > dubususa at gmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From giwagner at k5kg.com Sat Sep 19 08:35:50 2020 From: giwagner at k5kg.com (GIWagner@k5kg.com) Date: Sat, 19 Sep 2020 08:35:50 -0400 Subject: [Elecraft] Com ports behavior Message-ID: <188BBE51-A634-449A-B784-A86BEAEBF878@k5kg.com> I have lost radio control on my K3. To find out why, I tried to connect to the K3 Utility. Com5 connects just fine at 38400 bits/sec. When I try to check for firmware, I get a "com5 is closed" message. Have spent a few hours investigating this, but no joy. I can connect just fine to a different computer. Both computers are Win10. Why would a com port that connects just fine then show as closed? 73, George K5KG Sent from my iPhone From bobdehaney at gmx.net Sat Sep 19 11:57:53 2020 From: bobdehaney at gmx.net (Bob DeHaney) Date: Sat, 19 Sep 2020 17:57:53 +0200 Subject: [Elecraft] KRX3 TMP Connectors Message-ID: <000f01d68e9d$a247ea40$e6d7bec0$@gmx.net> I removed my KRX3 to install a new filter. My problem is, I can't re-insert one of the TMP connectors. It simply doesn't seat. I've inspected the Tip and it looks OK. I'm 80 and don't have super hand strength, but the first connector went in normally. Any suggestions? Vy 73 de Bob DJ0RD/WU5T From k2vco.vic at gmail.com Sat Sep 19 12:55:54 2020 From: k2vco.vic at gmail.com (Victor Rosenthal) Date: Sat, 19 Sep 2020 19:55:54 +0300 Subject: [Elecraft] KRX3 TMP Connectors In-Reply-To: <000f01d68e9d$a247ea40$e6d7bec0$@gmx.net> References: <000f01d68e9d$a247ea40$e6d7bec0$@gmx.net> Message-ID: <36d5cd54-3a07-cec3-808d-8238b204afcb@gmail.com> You don't need a lot of strength to do it! If it doesn't go in, probably the tip isn't going into the socket. Check to see that the tip is parallel to the shield portion of the connector. Make sure you are putting it in straight. Don't try to force it -- when you have it lined up right, it should go in. Good luck. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 19/09/2020 18:57, Bob DeHaney wrote: > I removed my KRX3 to install a new filter. My problem is, I can't > re-insert one of the TMP connectors. It simply doesn't seat. I've > inspected the Tip and it looks OK. > > I'm 80 and don't have super hand strength, but the first connector > went in normally. > > Any suggestions? > > > > Vy 73 de Bob DJ0RD/WU5T > > > > ______________________________________________________________ > Elecraft mailing list Home: > http://mailman.qth.net/mailman/listinfo/elecraft Help: > http://mailman.qth.net/mmfaq.htm Post: > mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net Please help support this > email list: http://www.qsl.net/donate.html Message delivered to > k2vco.vic at gmail.com > From jimlcary at gmail.com Sat Sep 19 15:09:01 2020 From: jimlcary at gmail.com (Jim Cary) Date: Sat, 19 Sep 2020 15:09:01 -0400 Subject: [Elecraft] Local KPA1500 operation via KPA1500 remote Message-ID: <921EE995-7B2F-46FB-ACD4-B24F311A8400@gmail.com> I?m having trouble configuring the KPA1500 remote software for local control of my KPA1500 using USB or Ethernet ( I want to locate the amp in the basement). I assume I am supposed to use the ?Local Connect? tab, but when I hit the ?connect? button, it says ?unable to connect on Com???? and ?KAT Remote not running.? The com connection does work with the Utility (and the Utility isn?t running at the same time). Obviously I?m doing something wrong here, so would appreciate some help. I can use the KPA1500 Utility to do the same thing, but it is not as ?elegant? Jim W2SM From n6tv at arrl.net Sat Sep 19 15:29:47 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Sat, 19 Sep 2020 12:29:47 -0700 Subject: [Elecraft] K3 Audio from RS232 connection? In-Reply-To: <450f47fc-ac5c-3476-6d3f-9b7b047b220e@denstarfarm.us> References: <450f47fc-ac5c-3476-6d3f-9b7b047b220e@denstarfarm.us> Message-ID: On Thu, Sep 17, 2020 at 10:31 AM Bob KD7YZ wrote: > When I ran up WSJT-X and was attempting to connect, I noticed No Audio. > > How do I get digital audio? I gather it's NOT thru the KIO3b RJ-45 . > If the USB cable is disconnected from the K3S, the USB Sound Card (USB Audio CODEC) will no longer be available. You have to switch WJST-X to use the sound card in your PC. And you have to run two cables: K3S LINE OUT to PC LINE IN (or MIC) K3S LINE IN to PC LINE OUT (or SPKR/Headphones) Adjust levels using the Windows level controls and CONFIG:LIN OUT and the MIC GAIN knob (which adjust LINE IN level when MAIN:MIC SEL is set to LINE). 73, Bob, N6TV From n6tv at arrl.net Sat Sep 19 15:36:50 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Sat, 19 Sep 2020 12:36:50 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> Message-ID: Please complete the K3/K3S Options Pre-Order Interest Form . Elecraft can't justify new production of these K3 boards until there is sufficient demand, as indicated by entries on the form (not by posts to this reflector). https://elecraft.com/pages/k3-k3s-options-interest-form 73, Bob, N6TV On Wed, Sep 16, 2020 at 1:29 PM N4ZR wrote: > I ordered the internal sound card etc. KIO3BUPDT in May, but the last I > heard you were trying to gauge demand before deciding whether to > continue providing this and other add-ins. The web site lists the > boards with prices and a shopping cart if you search for KIO3BUPDT, but > if you follow the links there are no prices. > > What's the current status? > > -- > 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 n6tv at arrl.net From n6tv at arrl.net Sat Sep 19 15:53:06 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Sat, 19 Sep 2020 12:53:06 -0700 Subject: [Elecraft] No Tx audio after WSJT upgrade In-Reply-To: <1599880984868-0.post@n2.nabble.com> References: <1599880984868-0.post@n2.nabble.com> Message-ID: Most likely causes of no TX Audio in a K3S with WSJT-X: 1. Any connector or cable inserted into the K3S 3.5mm LINE IN jack will override (and completely MUTE) the USB Audio CODEC input 2. USB Audio CODEC "Speakers" level got reset to 0 by Windows 3. MAIN:MIC SEL for DATA mode is not set to LINE (so MIC GAIN knob adjust MIC level instead of LINE IN level) 4. Wrong sound card selected in WJST-X 5. MON level set too low to hear your transmit tones 73, Bob, N6TV On Fri, Sep 11, 2020 at 8:23 PM W8JH wrote: > I was working FT8 tonight and decided to upgrade from WSJT 2.0 to the > latest > 2.2. > > Now I have no audio on transmit. All other functions work. Decodes, band > change etc. > > It puts the K3s in transmit but no audio. I have adjusted the Mic gain > without effect. > > I double checked that WSJT has the K3s codec for transmit selected. > Windoze > shows it working as well. > > I?m totally stumped and wish I hadn?t upgraded now. Any ideas how to > proceed > ? > > 73, > > > > ----- > 73, > > Joe, W8JH > > K3s, KPA 500, KAT 500 and KX3 happy user. > -- > 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 n6tv at arrl.net From rocketnj at gmail.com Sat Sep 19 16:00:59 2020 From: rocketnj at gmail.com (rocketnj at gmail.com) Date: Sat, 19 Sep 2020 16:00:59 -0400 Subject: [Elecraft] Local KPA1500 operation via KPA1500 remote In-Reply-To: <921EE995-7B2F-46FB-ACD4-B24F311A8400@gmail.com> References: <921EE995-7B2F-46FB-ACD4-B24F311A8400@gmail.com> Message-ID: <021401d68ebf$986e9510$c94bbf30$@gmail.com> Verify your baud rate and com port in the remote program (USB) matches the port and baud when using the utility program. Since the utility program works the cable connections are good. I am using 230400 baud You can also select Local Connect/USB in the remote program and select find KPA1500. It will take a few minutes, depending on how many com ports the PC has. Dave wo2x -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Jim Cary Sent: Saturday, September 19, 2020 3:09 PM To: elecraft at mailman.qth.net Subject: [Elecraft] Local KPA1500 operation via KPA1500 remote I?m having trouble configuring the KPA1500 remote software for local control of my KPA1500 using USB or Ethernet ( I want to locate the amp in the basement). I assume I am supposed to use the ?Local Connect? tab, but when I hit the ?connect? button, it says ?unable to connect on Com???? and ?KAT Remote not running.? The com connection does work with the Utility (and the Utility isn?t running at the same time). Obviously I?m doing something wrong here, so would appreciate some help. I can use the KPA1500 Utility to do the same thing, but it is not as ?elegant? Jim W2SM ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.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 jimlcary at gmail.com Sat Sep 19 16:23:00 2020 From: jimlcary at gmail.com (Jim Cary) Date: Sat, 19 Sep 2020 16:23:00 -0400 Subject: [Elecraft] Local KPA1500 operation via KPA1500 remote In-Reply-To: <021401d68ebf$986e9510$c94bbf30$@gmail.com> References: <921EE995-7B2F-46FB-ACD4-B24F311A8400@gmail.com> <021401d68ebf$986e9510$c94bbf30$@gmail.com> Message-ID: HI Dave, The key was using the ?find KPA1500) on the remote tab. Working now. Thanks. 73, Jim W2SM > On Sep 19, 2020, at 4:00 PM, rocketnj at gmail.com wrote: > > Verify your baud rate and com port in the remote program (USB) matches the port and baud when using the utility program. Since the utility program works the cable connections are good. > I am using 230400 baud > > You can also select Local Connect/USB in the remote program and select find KPA1500. It will take a few minutes, depending on how many com ports the PC has. > > Dave wo2x > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Jim Cary > Sent: Saturday, September 19, 2020 3:09 PM > To: elecraft at mailman.qth.net > Subject: [Elecraft] Local KPA1500 operation via KPA1500 remote > > I?m having trouble configuring the KPA1500 remote software for local control of my KPA1500 using USB or Ethernet ( I want to locate the amp in the basement). I assume I am supposed to use the ?Local Connect? tab, but when I hit the ?connect? button, it says ?unable to connect on Com???? and ?KAT Remote not running.? > > The com connection does work with the Utility (and the Utility isn?t running at the same time). > > Obviously I?m doing something wrong here, so would appreciate some help. > > I can use the KPA1500 Utility to do the same thing, but it is not as ?elegant? > > Jim > W2SM > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 rocketnj at gmail.com Sat Sep 19 17:09:04 2020 From: rocketnj at gmail.com (rocketnj at gmail.com) Date: Sat, 19 Sep 2020 17:09:04 -0400 Subject: [Elecraft] Local KPA1500 operation via KPA1500 remote In-Reply-To: References: <921EE995-7B2F-46FB-ACD4-B24F311A8400@gmail.com> <021401d68ebf$986e9510$c94bbf30$@gmail.com> Message-ID: <02cf01d68ec9$1b5def80$5219ce80$@gmail.com> Glad you got it working! 73 Dave wo2x -----Original Message----- From: Jim Cary Sent: Saturday, September 19, 2020 4:23 PM To: rocketnj at gmail.com Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Local KPA1500 operation via KPA1500 remote HI Dave, The key was using the ?find KPA1500) on the remote tab. Working now. Thanks. 73, Jim W2SM > On Sep 19, 2020, at 4:00 PM, rocketnj at gmail.com wrote: > > Verify your baud rate and com port in the remote program (USB) matches the port and baud when using the utility program. Since the utility program works the cable connections are good. > I am using 230400 baud > > You can also select Local Connect/USB in the remote program and select find KPA1500. It will take a few minutes, depending on how many com ports the PC has. > > Dave wo2x > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On Behalf Of Jim Cary > Sent: Saturday, September 19, 2020 3:09 PM > To: elecraft at mailman.qth.net > Subject: [Elecraft] Local KPA1500 operation via KPA1500 remote > > I?m having trouble configuring the KPA1500 remote software for local control of my KPA1500 using USB or Ethernet ( I want to locate the amp in the basement). I assume I am supposed to use the ?Local Connect? tab, but when I hit the ?connect? button, it says ?unable to connect on Com???? and ?KAT Remote not running.? > > The com connection does work with the Utility (and the Utility isn?t running at the same time). > > Obviously I?m doing something wrong here, so would appreciate some help. > > I can use the KPA1500 Utility to do the same thing, but it is not as ?elegant? > > Jim > W2SM > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 n4zr at comcast.net Sat Sep 19 21:26:37 2020 From: n4zr at comcast.net (N4ZR) Date: Sat, 19 Sep 2020 21:26:37 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> Message-ID: Did that back when they first announced the pre-order process. My order is still in the queue, according to Elecraft Sales. 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 9/19/2020 3:36 PM, Bob Wilson, N6TV wrote: > Please complete the K3/K3S Options Pre-Order Interest Form > . Elecraft > can't justify new production of these K3 boards until there is > sufficient demand, as indicated by entries on the form (not by posts > to this reflector). > > https://elecraft.com/pages/k3-k3s-options-interest-form > > > 73, > Bob, N6TV > > > On Wed, Sep 16, 2020 at 1:29 PM N4ZR > wrote: > > I ordered the internal sound card etc. KIO3BUPDT in May, but the > last I > heard you were trying to gauge demand before deciding whether to > continue providing this and other add-ins.? The web site lists the > boards with prices and a shopping cart if you search for > KIO3BUPDT, but > if you follow the links there are no prices. > > What's the current status? > > -- > 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 n6tv at arrl.net > From kevinr at coho.net Sun Sep 20 00:22:09 2020 From: kevinr at coho.net (kevinr) Date: Sat, 19 Sep 2020 21:22:09 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <58f6051e-1002-036e-3b06-4097c2f06ede@coho.net> Good Evening, ?? I went for a hike this afternoon.? The mist was hanging in the air.? It felt great to breath without smoke or ash in the air.? It has rained off and on for the last two days.? East of Portland they received over 2 inches.? Hopefully that held true farther south.? I noticed a lot more birds flying around.? They didn't like the smoke either.? Plants and trees look a month older than normal.? They don't like breathing carbon monoxide. ?? It has been a month since the sun had a spot.? The word is cycle 25 has begun.? I wish it would show a more spirited entry. I spent the week writing some graphics code for a 3D engine.? Each trigonometric function requires a conversion factor.? Really, who thinks in radians?? "I'll cut this board at an angle of PI/4 +/- 2 deciradians."? I'll stick with 360 degrees instead.? If it was good enough for the Babylonians it's good enough for us.? Fie on radian measure. Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) ?7047 kHz at 0045z Monday (5:45 PM PDT Sunday) ?? 73, ????? Kevin. KD5ONS _ From kd7yz at denstarfarm.us Sun Sep 20 08:40:29 2020 From: kd7yz at denstarfarm.us (Bob KD7YZ) Date: Sun, 20 Sep 2020 08:40:29 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> Message-ID: On 9/19/2020 15:36, Bob Wilson, N6TV wrote: > Please complete the K3/K3S Options Pre-Order Interest Form I also got this and was wanting to put the board(s) for the VLF frequencies in. IIRC a couple years ago I had a conversation with support and they at the time would put them in andf make the mods for me. Now I want to do it and I can't find them listed .... so I can't fill in the "Form" Magic or Memorex? (most of you are too young to remember the TV commercial) -- 73 Bob KD7YZ AMSAT LM #901 From norrislawfirm2 at gmail.com Sun Sep 20 11:45:55 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Sun, 20 Sep 2020 08:45:55 -0700 Subject: [Elecraft] Odd K3 behavior Message-ID: My K3 #2545 has been exhibiting some very intermittent odd behavior lately. In CW QSK mode, when I hit the paddles, it goes into tx normally, but the receiver appears to stay muted and there is no audio, nor any indicatio of band noise on the S-meter. It will continue to tx normally, and the red led tx indicator goes out as expected. This can happen when VOX is on and it is making normal power, or when VOX is off, and there is no tx power (so not RFI). When this happens, no amount of keyer paddling will bring it back. However, power cycling brings it back to life, and it then functions normally for the rest of the operating session. So far, I think, this only happens at the beginning of an operating session from a cold start. The rig is connected to an Elecraft amp and two transverters through an auxbus breakout box (N6TV?), a laptop, P3, and last visited the mothership 2-3 years ago when it received all available updates save a KAT3A. Any ideas on narrowing down the problem? Thanks. 73 Eric WD6DBM From ab7echo at gmail.com Sun Sep 20 13:11:40 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 20 Sep 2020 10:11:40 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> Message-ID: You're forgetting that you're talking to hams here ... almost all of us are likely to be old enough to remember that commercial. 73, Dave?? AB7E On 9/20/2020 5:40 AM, Bob KD7YZ wrote: > Magic or Memorex? > (most of you are too young to remember the TV commercial) > > > > > From k6dgw at foothill.net Sun Sep 20 14:25:58 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sun, 20 Sep 2020 11:25:58 -0700 Subject: [Elecraft] Elecraft CW Net Announcement In-Reply-To: <58f6051e-1002-036e-3b06-4097c2f06ede@coho.net> References: <58f6051e-1002-036e-3b06-4097c2f06ede@coho.net> Message-ID: You didn't have to use gradians too?? Smoke has cleared here in NW NV for the last two or so days, SW winds will likely bring it back tomorrow. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/19/2020 9:22 PM, kevinr wrote: > I spent the week writing some graphics code for a 3D engine.? Each > trigonometric function requires a conversion factor.? Really, who > thinks in radians?? "I'll cut this board at an angle of PI/4 +/- 2 > deciradians."? I'll stick with 360 degrees instead.? If it was good > enough for the Babylonians it's good enough for us.? Fie on radian > measure. From k6dgw at foothill.net Sun Sep 20 14:31:39 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sun, 20 Sep 2020 11:31:39 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> Message-ID: <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> and some of us remember the arrival of the first TV station in town 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/20/2020 10:11 AM, David Gilbert wrote: > > You're forgetting that you're talking to hams here ... almost all of > us are likely to be old enough to remember that commercial. > > 73, > Dave?? AB7E > > > > On 9/20/2020 5:40 AM, Bob KD7YZ wrote: >> Magic or Memorex? >> (most of you are too young to remember the TV commercial) From c-hawley at illinois.edu Sun Sep 20 14:41:17 2020 From: c-hawley at illinois.edu (hawley, charles j jr) Date: Sun, 20 Sep 2020 18:41:17 +0000 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> , <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> Message-ID: I?m from Chicago, so seems like we got three or four at once. But I do remember the first TV set, Dumont 12 inch round tube, 1948. A friend of mine got a Halicrafters 5 inch or so near the same time, and an antenna on a tower. Plus an oil filled thing to look through that made the image bigger. Remember those colored plastic things people put over the screen to add a bit of color? Chuck Jack Hawley KE9UW Sent from my iPhone, cjack > On Sep 20, 2020, at 1:32 PM, Fred Jensen wrote: > > ?and some of us remember the arrival of the first TV station in town > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > >> On 9/20/2020 10:11 AM, David Gilbert wrote: >> >> You're forgetting that you're talking to hams here ... almost all of us are likely to be old enough to remember that commercial. >> >> 73, >> Dave AB7E >> >> >> >>> On 9/20/2020 5:40 AM, Bob KD7YZ wrote: >>> Magic or Memorex? >>> (most of you are too young to remember the TV commercial) > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 kwidelitz at gmail.com Sun Sep 20 14:43:36 2020 From: kwidelitz at gmail.com (Ken Widelitz) Date: Sun, 20 Sep 2020 11:43:36 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> Message-ID: I always thought the line was "Is it live or is it Memorex?" On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: > and some of us remember the arrival of the first TV station in town > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 9/20/2020 10:11 AM, David Gilbert wrote: > > > > You're forgetting that you're talking to hams here ... almost all of > > us are likely to be old enough to remember that commercial. > > > > 73, > > Dave AB7E > > > > > > > > On 9/20/2020 5:40 AM, Bob KD7YZ wrote: > >> Magic or Memorex? > >> (most of you are too young to remember the TV commercial) > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kwidelitz at gmail.com From rlvz at aol.com Sun Sep 20 15:04:02 2020 From: rlvz at aol.com (RVZ) Date: Sun, 20 Sep 2020 19:04:02 +0000 (UTC) Subject: [Elecraft] K3 Receiver frequency adjustment References: <328743051.4113903.1600628642919.ref@mail.yahoo.com> Message-ID: <328743051.4113903.1600628642919@mail.yahoo.com> Hi Guys, My K3 receiver is a little off frequency compared to the frequency stations are spotted at.? I realize that Packet Spots aren't always posted on frequency, but after viewing thousands of Spots which were posted by dozens of different sources, on average the actual frequency the station is received at averages 0.2 khz higher on the band then where it was spotted.? I'm wondering what options are available for adjusting the K3 receiver frequency?? Is there a receiver frequency adjustment within the K3 Utility??Thanks & 73,?Dick- K9OM???? From ab7echo at gmail.com Sun Sep 20 15:06:49 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 20 Sep 2020 12:06:49 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> Message-ID: <34b82b97-c8b0-bee9-c563-5d1c0d55e8b9@gmail.com> Yes, that was the line.? I thought something sounded off in what KD7YZ wrote but I couldn't place it.? I do certainly remember the commercial, though, and I don't think it was all that long ago that it aired. Dave?? AB7E On 9/20/2020 11:43 AM, Ken Widelitz wrote: > I always thought the line was "Is it live or is it Memorex?" > > On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: > >> and some of us remember the arrival of the first TV station in town >> >> 73, >> >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >> On 9/20/2020 10:11 AM, David Gilbert wrote: >>> You're forgetting that you're talking to hams here ... almost all of >>> us are likely to be old enough to remember that commercial. >>> >>> 73, >>> Dave AB7E >>> >>> >>> >>> On 9/20/2020 5:40 AM, Bob KD7YZ wrote: >>>> Magic or Memorex? >>>> (most of you are too young to remember the TV commercial) >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kwidelitz 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 ab7echo at gmail.com From ab7echo at gmail.com Sun Sep 20 15:08:30 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 20 Sep 2020 12:08:30 -0700 Subject: [Elecraft] K3 Receiver frequency adjustment In-Reply-To: <328743051.4113903.1600628642919@mail.yahoo.com> References: <328743051.4113903.1600628642919.ref@mail.yahoo.com> <328743051.4113903.1600628642919@mail.yahoo.com> Message-ID: Why don't you check an actual known frequency???? Relying on packet spots for anything seems foolish to me. Dave?? AB7E On 9/20/2020 12:04 PM, RVZ via Elecraft wrote: > Hi Guys, > > My K3 receiver is a little off frequency compared to the frequency stations are spotted at.? I realize that Packet Spots aren't always posted on frequency, but after viewing thousands of Spots which were posted by dozens of different sources, on average the actual frequency the station is received at averages 0.2 khz higher on the band then where it was spotted.? I'm wondering what options are available for adjusting the K3 receiver frequency?? Is there a receiver frequency adjustment within the K3 Utility??Thanks & 73,?Dick- K9OM From nr4c at widomaker.com Sun Sep 20 15:13:59 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 20 Sep 2020 15:13:59 -0400 Subject: [Elecraft] K3 Receiver frequency adjustment In-Reply-To: <328743051.4113903.1600628642919@mail.yahoo.com> References: <328743051.4113903.1600628642919@mail.yahoo.com> Message-ID: Look in the manual for Ref Cal calibration. But before you go Messing there, tune radio to WWV on 10.000, 15.000 or 20.000 MHz and see if it?s really you or the other guy that?s off. Now check for procedure. The zero beat works well and can get you within a Hertz or two Sent from my iPhone ...nr4c. bill > On Sep 20, 2020, at 3:06 PM, RVZ via Elecraft wrote: > > ?Hi Guys, > > My K3 receiver is a little off frequency compared to the frequency stations are spotted at. I realize that Packet Spots aren't always posted on frequency, but after viewing thousands of Spots which were posted by dozens of different sources, on average the actual frequency the station is received at averages 0.2 khz higher on the band then where it was spotted. I'm wondering what options are available for adjusting the K3 receiver frequency? Is there a receiver frequency adjustment within the K3 Utility? Thanks & 73, Dick- K9OM > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From k6dgw at foothill.net Sun Sep 20 15:27:43 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sun, 20 Sep 2020 12:27:43 -0700 Subject: [Elecraft] Early TV In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> Message-ID: When I was a freshman at Cal Poly in San Luis Obispo in 1958, I met a senior who was looking for someone to replace him on the engineering crew at KSBY Ch 6.? I had the 1P and they hired me.? Most of the studio equipment was Dumont, including a flying-spot scanner, and the TX was Dumont, Serial # 3 on Cuesta Ridge to the north.? Worked there nearly full time until, in a deja vu moment, I found a freshman with a 1P a couple months before I graduated to replace me. The Dumont gear was replaced with RCA and an RCA 10 KW visual TX, however we kept the old slide and film chain with projectors thru an optical mulitplexer into an iconoscope camera.? When I was graduating, the CE gave me one of the old ike's, it's now a decorative item on a shelf in the living room. Checking into the NorCal net on 80 last week, I was struck by the difference between my K3 and ham radio gear [and TV broadcast gear] of the 50's.? Then, it took me several minutes to zero beat NCS.?? Now, I just set the K3 to 3533.000 and I know I'll be within a couple of Hz. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/20/2020 11:41 AM, hawley, charles j jr wrote: > I?m from Chicago, so seems like we got three or four at once. But I do remember the first TV set, Dumont 12 inch round tube, 1948. > A friend of mine got a Halicrafters 5 inch or so near the same time, and an antenna on a tower. Plus an oil filled thing to look through that made the image bigger. > Remember those colored plastic things people put over the screen to add a bit of color? > > Chuck Jack Hawley > KE9UW > > Sent from my iPhone, cjack > >> On Sep 20, 2020, at 1:32 PM, Fred Jensen wrote: >> >> ?and some of us remember the arrival of the first TV station in town >> >> 73, >> >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>> >>> You're forgetting that you're talking to hams here ... almost all of us are likely to be old enough to remember that commercial. >>> >>> 73, >>> Dave AB7E >>> >>> >>> >>>> On 9/20/2020 5:40 AM, Bob KD7YZ wrote: >>>> Magic or Memorex? >>>> (most of you are too young to remember the TV commercial) >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 k6dgw at foothill.net Sun Sep 20 15:33:56 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Sun, 20 Sep 2020 12:33:56 -0700 Subject: [Elecraft] K3 Receiver frequency adjustment In-Reply-To: References: <328743051.4113903.1600628642919@mail.yahoo.com> Message-ID: All good advice BUT ... before you do anything, look up Wayne's RefCal procedure on the Elecraft site. I think Don, W3FPR, may also have it.? It's not hard, you just have to go slowly and be very meticulous at each step.? I have my K3 #642 within 1 Hz of WWV, and it stays there.? It's a fun adjustment too because there are very few things we can adjust to within 1 part per 10 million and no test equipment. [:=) 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/20/2020 12:13 PM, Nr4c wrote: > Look in the manual for Ref Cal calibration. But before you go Messing there, tune radio to WWV on 10.000, 15.000 or 20.000 MHz and see if it?s really you or the other guy that?s off. > Now check for procedure. The zero beat works well and can get you within a Hertz or two > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 20, 2020, at 3:06 PM, RVZ via Elecraft wrote: >> >> ?Hi Guys, >> >> My K3 receiver is a little off frequency compared to the frequency stations are spotted at. I realize that Packet Spots aren't always posted on frequency, but after viewing thousands of Spots which were posted by dozens of different sources, on average the actual frequency the station is received at averages 0.2 khz higher on the band then where it was spotted. I'm wondering what options are available for adjusting the K3 receiver frequency? Is there a receiver frequency adjustment within the K3 Utility? Thanks & 73, Dick- K9OM >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 k6dgw at foothill.net From augie.hansen at comcast.net Sun Sep 20 15:37:45 2020 From: augie.hansen at comcast.net (Augie "Gus" Hansen) Date: Sun, 20 Sep 2020 13:37:45 -0600 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> Message-ID: > You're forgetting that you're talking to hams here ... almost all of > us are likely to be old enough to remember that commercial. Those of us who are old enough and with good memories recall the tag line thusly: ??? "Is it REAL or is it Memorex" And that was accompanied by the video of Ella Fitzgerald breaking a glass with her voice. Ah, those were the days. Gus Hansen KB0YH From Lyn at LNAINC.com Sun Sep 20 15:39:30 2020 From: Lyn at LNAINC.com (Lyn Norstad) Date: Sun, 20 Sep 2020 14:39:30 -0500 Subject: [Elecraft] Com ports behavior In-Reply-To: <188BBE51-A634-449A-B784-A86BEAEBF878@k5kg.com> References: <188BBE51-A634-449A-B784-A86BEAEBF878@k5kg.com> Message-ID: <037d01d68f85$c27ad320$47707960$@LNAINC.com> Are you saying that another computer connects to the K3 just fine? Or that the first computer connects to a second computer? I am assuming it is the former, but I had to ask. Did this computer talk to the K3 previously? Are you using a USB port that has been assigned as a COM port? What does Device Manager show as a driver? What does it call the port? What cable are you using, and can you try switching to another cable? Did you check Device Manager to find out what has happened to the original COM5? Do you have other apps contending for that port? It definitely sounds like a computer / cable issue, not a K3 problem. 73 Lyn, W0LEN -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of GIWagner at k5kg.com Sent: Saturday, September 19, 2020 7:36 AM To: Elecraft at mailman.qth.net Cc: Lu Romero W4Lt Subject: [Elecraft] Com ports behavior I have lost radio control on my K3. To find out why, I tried to connect to the K3 Utility. Com5 connects just fine at 38400 bits/sec. When I try to check for firmware, I get a "com5 is closed" message. Have spent a few hours investigating this, but no joy. I can connect just fine to a different computer. Both computers are Win10. Why would a com port that connects just fine then show as closed? 73, George K5KG From radio at disseminator.net Sun Sep 20 15:59:07 2020 From: radio at disseminator.net (Dave Erickson) Date: Sun, 20 Sep 2020 14:59:07 -0500 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> Message-ID: <47f18d6d-7fca-0d79-9363-2a49a47a6167@disseminator.net> Just gonna put this here and run away: https://www.youtube.com/watch?v=lhfugTnXJV4 73 all. On 9/20/2020 2:37 PM, Augie "Gus" Hansen wrote: > >> You're forgetting that you're talking to hams here ... almost all of >> us are likely to be old enough to remember that commercial. > > Those of us who are old enough and with good memories recall the tag > line thusly: > > ??? "Is it REAL or is it Memorex" > > And that was accompanied by the video of Ella Fitzgerald breaking a > glass with her voice. > Ah, those were the days. > > Gus Hansen > KB0YH > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to radio at disseminator.net -- Dave Erickson k0dom 73 From radioham at mchsi.com Sun Sep 20 16:31:06 2020 From: radioham at mchsi.com (David Christ) Date: Sun, 20 Sep 2020 15:31:06 -0500 Subject: [Elecraft] Early TV history was Status of Add-ons for K3? In-Reply-To: <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> Message-ID: <94461F48-A13C-4BD0-829A-571B3F177D0B@mchsi.com> Not my stories but ? The grandfather of a close friend of mine was William C Eddy. Was in on TV from the beginning. Worked with Farnsworth. Arranged the first live college football broadcast (Notre Dame) and set up the airing of Chicago Cubs. And so much more. My friend has related tons of great stories and gave me two CDs of an extended interview he gave late in life. Unfortunately we don?t have the right or authorization to share. One of the true pioneers. A truly interesting fellow. Worth looking him up on the Internet. David K0LUM > On Sep 20, 2020, at 1:31 PM, Fred Jensen wrote: > > and some of us remember the arrival of the first TV station in town > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 9/20/2020 10:11 AM, David Gilbert wrote: >> >> You're forgetting that you're talking to hams here ... almost all of us are likely to be old enough to remember that commercial. >> >> 73, >> Dave AB7E >> >> >> >> On 9/20/2020 5:40 AM, Bob KD7YZ wrote: >>> Magic or Memorex? >>> (most of you are too young to remember the TV commercial) > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ab7echo at gmail.com Sun Sep 20 17:02:42 2020 From: ab7echo at gmail.com (David Gilbert) Date: Sun, 20 Sep 2020 14:02:42 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> Message-ID: Uhh ... what was that you were saying about good memories? In your defense, however, the internet is flooded with references to "Is it real or is it Memorex?" as erroneously being the old slogan. Tons of people have got it wrong. Dave?? AB7E On 9/20/2020 12:37 PM, Augie "Gus" Hansen wrote: > > > Those of us who are old enough and with good memories recall the tag > line thusly: > > ??? "Is it REAL or is it Memorex" > > And that was accompanied by the video of Ella Fitzgerald breaking a > glass with her voice. > Ah, those were the days. > > Gus Hansen > KB0YH From tknorris0001 at gmail.com Sun Sep 20 17:33:25 2020 From: tknorris0001 at gmail.com (Tom NB5Q) Date: Sun, 20 Sep 2020 15:33:25 -0600 Subject: [Elecraft] OT - Yagi and OCFD vertical separation Message-ID: Can someone direct me to a site or advise me on the minimum vertical separation between an 80-10M OCFD and a 6 element 10/15/20M Yagi. I've looked in the 2018 ARRL Handbook but couldn't find what I was looking for. Thanks, Tom NB5Q From donwilh at embarqmail.com Sun Sep 20 18:06:40 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 20 Sep 2020 18:06:40 -0400 Subject: [Elecraft] OT - Yagi and OCFD vertical separation In-Reply-To: References: Message-ID: <3b9a84d3-6b09-75f0-e72b-7934d8677855@embarqmail.com> Tom, I would say 100 feet if you are running 100 watts. If you increase the power, the distance should be increased. As is often said in cases like this 'it all depends'. I am assuming you are using the OCFD as a receive antenna. If you hear the COR clicking while transmitting, they are too close. 73, Don W3FPR On 9/20/2020 5:33 PM, Tom NB5Q wrote: > Can someone direct me to a site or advise me on the minimum vertical > separation between an 80-10M OCFD and a 6 element 10/15/20M Yagi. I've > looked in the 2018 ARRL Handbook but couldn't find what I was looking for. > Thanks, Tom NB5Q From Mike.Carter at unh.edu Sun Sep 20 19:17:20 2020 From: Mike.Carter at unh.edu (Mike K8CN) Date: Sun, 20 Sep 2020 16:17:20 -0700 (MST) Subject: [Elecraft] OT - Yagi and OCFD vertical separation In-Reply-To: References: Message-ID: <1600643840907-0.post@n2.nabble.com> I'll add to Don's guidance this question: If you're NOT using the OCFD for receiving concurrently while transmitting on the Yagi, are you concerned about interaction of the two antennas with regard to pattern distortion of the Yagi by currents induced in the OCFD? If so, then you need a few wavelengths separation at the frequency of interest (20 meters being the lowest frequency for the Yagi). If you don't care about the Yagi's pattern distortion, then don't worry about the separation distance. Many folks hang inverted V antennas for the low bands from the same tower on which Yagis are mounted, often just a few feet down from the Yagi. Mike, K8CN -- Sent from: http://elecraft.365791.n2.nabble.com/ From w2ljqrp at gmail.com Sun Sep 20 19:43:48 2020 From: w2ljqrp at gmail.com (Larry Makoski) Date: Sun, 20 Sep 2020 19:43:48 -0400 Subject: [Elecraft] 2020 NJQRP Skeeter Hunt Soapbox ready to view Message-ID: You can see all the comments of your fellow Skeeter Hunters! You can go to the Official NJQRP Skeeter Hunt Webpage and scroll to the bottom for the links. Or ... Soapbox Page 1 is here https://www.qsl.net/w2lj/index%20page%2016 Soapbox Page 2 is here https://www.qsl.net/w2lj/index%20page%2017 Soapbox Page 3 is here https://www.qsl.net/w2lj/index%20page%2018 Once again, thanks to all of you out there who participated and continue to participate from year to year. *YOU* make the NJQRP Skeeter Hunt the success that it is. Without you, it would be four hours of dead air. Certificates will be mailed in October 72 de Larry W2LJ From k2asp at kanafi.org Sun Sep 20 20:19:52 2020 From: k2asp at kanafi.org (Phil Kane) Date: Sun, 20 Sep 2020 17:19:52 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> Message-ID: <5f5b6002-0cc2-3463-15fa-4d037e0d6ec9@kanafi.org> On 9/20/2020 11:41 AM, hawley, charles j jr wrote: > Remember those colored plastic things people put over the screen to add a bit of color? My buddy's family had one of them over their round-screen DuMont TV. We had a rectangular RCA in a genuine wood console with AM receiver and 78 record player. We never "colorized ours.. Late 1940s. 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From n4zr at comcast.net Sun Sep 20 22:09:00 2020 From: n4zr at comcast.net (N4ZR) Date: Sun, 20 Sep 2020 22:09:00 -0400 Subject: [Elecraft] K3 Receiver frequency adjustment In-Reply-To: References: <328743051.4113903.1600628642919.ref@mail.yahoo.com> <328743051.4113903.1600628642919@mail.yahoo.com> Message-ID: <18328975-68bd-4c55-995b-7f84faf035d4@comcast.net> Amen, Dave.? After all, the "retail" DX cluster network rounds frequency to the nearest 0.1 KHz.? I think RVZ could do worse than to use WWV at 10 or 15 MHz to verify his K3's calibration And FWIW, a word or two from the RBN perspective - we have been working for several months to improve the frequency calibration of the RBN, by helping the stations that combine prolific spotting with less than ideal calibration.? SM7IUN has come up with a very neat tool for measuring the average accuracy of each active RBN node over each Zulu day, and posting the results nightly at . The vast majority of prolific RBN nodes are already within 5 parts per million, which equates to only 0.07 KHz on 14 MHz.? The very "worst" ones are off by around 15 ppm, or a bit over 0.2 KHz on 20m, and I have been working with them, one by one, trying to bring their nodes closer to the standard. For users of the Red Pitaya and QS1R receivers, as well as the other receivers directly supported by VE3NEA's Skimmer Servers, correcting calibration is a simple matter, and we've seen some good results, with others forthcoming soon, I hope. 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 9/20/2020 3:08 PM, David Gilbert wrote: > > Why don't you check an actual known frequency???? Relying on packet > spots for anything seems foolish to me. > > Dave?? AB7E > > > On 9/20/2020 12:04 PM, RVZ via Elecraft wrote: >> Hi Guys, >> >> My K3 receiver is a little off frequency compared to the frequency >> stations are spotted at.? I realize that Packet Spots aren't always >> posted on frequency, but after viewing thousands of Spots which were >> posted by dozens of different sources, on average the actual >> frequency the station is received at averages 0.2 khz higher on the >> band then where it was spotted.? I'm wondering what options are >> available for adjusting the K3 receiver frequency?? Is there a >> receiver frequency adjustment within the K3 Utility??Thanks & >> 73,?Dick- K9OM > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 jim at audiosystemsgroup.com Sun Sep 20 23:02:22 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 20 Sep 2020 20:02:22 -0700 Subject: [Elecraft] K3 Receiver frequency adjustment In-Reply-To: <328743051.4113903.1600628642919@mail.yahoo.com> References: <328743051.4113903.1600628642919.ref@mail.yahoo.com> <328743051.4113903.1600628642919@mail.yahoo.com> Message-ID: <00077761-2993-a3fe-f77e-637d24b3bd55@audiosystemsgroup.com> On 9/20/2020 12:04 PM, RVZ via Elecraft wrote: > I'm wondering what options are available for adjusting the K3 receiver frequency? It's in the manual. 73, Jim K9YC From jboehner01 at yahoo.com Sun Sep 20 23:43:19 2020 From: jboehner01 at yahoo.com (James F. Boehner MD) Date: Sun, 20 Sep 2020 23:43:19 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> Message-ID: <003201d68fc9$59aac2d0$0d004870$@yahoo.com> Now THAT sounds right! '73 de Jim N2ZZ -----Original Message----- From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ken Widelitz Sent: Sunday, September 20, 2020 2:44 PM To: Fred Jensen Cc: Elecraft Reflector Subject: Re: [Elecraft] Status of Add-ons for K3? I always thought the line was "Is it live or is it Memorex?" On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: > and some of us remember the arrival of the first TV station in town > > 73, > > Fred ["Skip"] K6DGW > Sparks NV DM09dn > Washoe County > > On 9/20/2020 10:11 AM, David Gilbert wrote: > > > > You're forgetting that you're talking to hams here ... almost all of > > us are likely to be old enough to remember that commercial. > > > > 73, > > Dave AB7E > > > > > > > > On 9/20/2020 5:40 AM, Bob KD7YZ wrote: > >> Magic or Memorex? > >> (most of you are too young to remember the TV commercial) > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to kwidelitz 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 jboehner01 at yahoo.com From mike.flowers at gmail.com Sun Sep 20 23:52:56 2020 From: mike.flowers at gmail.com (Mike Flowers) Date: Sun, 20 Sep 2020 20:52:56 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <003201d68fc9$59aac2d0$0d004870$@yahoo.com> References: <003201d68fc9$59aac2d0$0d004870$@yahoo.com> Message-ID: <8A3840F7-D810-4178-80CB-4E165E0AFC6D@gmail.com> Who remembers? https://en.m.wikipedia.org/wiki/Winky_Dink_and_You -- 73 de Mike Flowers, K6MKF, NCDXC - "It's about DX!" > On Sep 20, 2020, at 8:44 PM, James F. Boehner MD via Elecraft wrote: > > ?Now THAT sounds right! > > '73 de Jim N2ZZ > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Ken Widelitz > Sent: Sunday, September 20, 2020 2:44 PM > To: Fred Jensen > Cc: Elecraft Reflector > Subject: Re: [Elecraft] Status of Add-ons for K3? > > I always thought the line was "Is it live or is it Memorex?" > >> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >> >> and some of us remember the arrival of the first TV station in town >> >> 73, >> >> Fred ["Skip"] K6DGW >> Sparks NV DM09dn >> Washoe County >> >>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>> >>> You're forgetting that you're talking to hams here ... almost all of >>> us are likely to be old enough to remember that commercial. >>> >>> 73, >>> Dave AB7E >>> >>> >>> >>> On 9/20/2020 5:40 AM, Bob KD7YZ wrote: >>>> Magic or Memorex? >>>> (most of you are too young to remember the TV commercial) >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to kwidelitz 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 jboehner01 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 mike.flowers at gmail.com From kevinr at coho.net Mon Sep 21 01:40:46 2020 From: kevinr at coho.net (kevinr) Date: Sun, 20 Sep 2020 22:40:46 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: <8d61b8cb-64f3-86a8-939e-03982d176516@coho.net> Good Evening, ?? Conditions were a bit better on forty meters than they were on twenty.? QSB was faster there but signals were stronger.? Even though the sun is still blank forty meters bounced east of the Mississippi.? Weak and warbly, but copy was 50% or better.? There was more band noise.? I didn't hear thunderstorms but it did sound like wind.? There were ghost signals where I could not copy a letter, to QRM who could not hear any of us.? However, propagation is only part of what we do.? I get to hear about antenna projects, gardening, birding, yard work, house work, painting, weeding, dog walking, and many other fascinating topics.? It is rarely the same from week to week.? It reminds me of going to the old country store with the pot belly stove.? Folks would gather around it and tell stories about this and that.? Something I have not heard on ECN is one about calf pulling.? Just hasn't come up I guess. ? On 14050.5 kHz at 2200z: W0CZ - Ken - ND K6XK - Roy - IA NO8V - John - MI ? On 7047.5 kHz at 0045z: W0CZ - Ken - ND K0DTJ - Brian - CA K1SW - Dick - CT K9FN - Dave - IN K6PJV - Dale - CA ??? Until next week remember to warm your hands before milking a cow. ????? 73, ????????? Kevin.? KD5ONS - From k2vco.vic at gmail.com Mon Sep 21 01:44:31 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Mon, 21 Sep 2020 08:44:31 +0300 Subject: [Elecraft] OT - Yagi and OCFD vertical separation In-Reply-To: <1600643840907-0.post@n2.nabble.com> References: <1600643840907-0.post@n2.nabble.com> Message-ID: <8926ed07-3d68-053e-9e68-9eed3a305065@gmail.com> I once hung a 40-meter inverted V a few feet underneath a 4-element tribander, and the V absolutely WRECKED the performance of the beam on 15 meters! It was like no beam at all. The V was fed with open-wire line, so my solution was to detune it by shorting the end of the line when it wasn't in use. I am not sure if this would work with coax, and precisely how you detune it depends on the length of the line (short, open, or something else). But I'm just saying -- interactions can be serious. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 21/09/2020 2:17, Mike K8CN wrote: > I'll add to Don's guidance this question: > > If you're NOT using the OCFD for receiving concurrently while transmitting > on the Yagi, are you concerned about interaction of the two antennas with > regard to pattern distortion of the Yagi by currents induced in the OCFD? > > If so, then you need a few wavelengths separation at the frequency of > interest (20 meters being the lowest frequency for the Yagi). If you don't > care about the Yagi's pattern distortion, then don't worry about the > separation distance. Many folks hang inverted V antennas for the low bands > from the same tower on which Yagis are mounted, often just a few feet down > from the Yagi. > > Mike, K8CN > > > > -- > 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 k2vco.vic at gmail.com > From bobdehaney at gmx.net Mon Sep 21 03:52:37 2020 From: bobdehaney at gmx.net (Bob DeHaney) Date: Mon, 21 Sep 2020 09:52:37 +0200 Subject: [Elecraft] IF1 Error Message-ID: <000001d68fec$2c958aa0$85c09fe0$@gmx.net> After installing the KBPF3 is the K3, I now get IF1 Error. Any suggestions, as de-installing the KNB3 means removing the KRX3 which is a real PAIN!! Vy 73 de Bob DJ0RD/WU5T From bobdehaney at gmx.net Mon Sep 21 05:13:47 2020 From: bobdehaney at gmx.net (Bob DeHaney) Date: Mon, 21 Sep 2020 11:13:47 +0200 Subject: [Elecraft] IF1 Error after BPF3 Installation Message-ID: <000b01d68ff7$832d0c70$89872550$@gmx.net> I just figured out that the KNB3 Menu setting as recommended in trouble shooting this error, no longer exists. I have removed and re-installed the KNB3 with no change. I?m running out of ideas. V 73 de Bob DJ0RD/WU5T From bobdehaney at gmx.net Mon Sep 21 05:34:23 2020 From: bobdehaney at gmx.net (Bob DeHaney) Date: Mon, 21 Sep 2020 11:34:23 +0200 Subject: [Elecraft] IF1 Error after Installing the KBPF3A Message-ID: <001001d68ffa$63fefea0$2bfcfbe0$@gmx.net> Well I have a partially red face. I apparently installed the modification capacitor incorrectly. I don?t feel this is all my fault though. My Main RF Board is Rev. B and does not look like the board pictured in the modification instructions. With Main Board Rev. B, is this mod needed? Vy 73 de Bob DJ0Rd/WU5T From douglas.hagerman at me.com Mon Sep 21 10:40:53 2020 From: douglas.hagerman at me.com (Douglas Hagerman) Date: Mon, 21 Sep 2020 08:40:53 -0600 Subject: [Elecraft] Wayback machine K2 SSB filter roll-off mod question Message-ID: <430204CB-E4D6-45F4-81A4-070A57415107@me.com> I am trying to install the mod described in "Application Note Eliminating the Frequency Roll-off of the K2 SSB Filter.? Instructions are from March 2001, kit is new. Radio serial number 875 with SSB and 160 meters and antenna tuner and digital I/O options. The capacitor that is to be removed as part of the mod, C180, was already removed when I got the radio. Solder indicates it was in there originally. But the additional parts (transistor, caps, resistor) of the modification are not installed. I don?t see anything unusual on the SSB board, and I don?t see anything that looks like an FCO in other places on the RF board. The application note says that one way (less desirable) to accomplish the filter change is to just screw out L34 a long way, but it doesn?t say anything about taking out C180. I?m wondering if there was another version of the mod, maybe that came out before the 2001 version of the upgrade kit, where you took out C180 and then adjusted inductor L34. It does appear to be screwed pretty far out. I?m fine with putting in the parts using the instructions, just want to not screw up a working radio... Thanks! Doug, W0UHU. From infomet at embarqmail.com Sat Sep 19 10:27:35 2020 From: infomet at embarqmail.com (Wilson Lamb) Date: Sat, 19 Sep 2020 10:27:35 -0400 (EDT) Subject: [Elecraft] Cheap Keyer Paddle In-Reply-To: References: Message-ID: <1187414843.23681689.1600525655018.JavaMail.zimbra@embarqmail.com> Seems a perfect time to revive ham tradition and make one. Do you have any tools, soldering iron? Hacksaw blade comes to mind, maybe a couple of quarters for pads, screws for contacts? I know you can Google: https://www.youtube.com/watch?v=Sps6gsqwzws I love the paper clamp idea! https://www.youtube.com/watch?feature=youtu.be&v=RtEYI4aF7j4&app=desktop WL From ars.nc0jw at gmail.com Mon Sep 21 11:31:46 2020 From: ars.nc0jw at gmail.com (Jim White NC0JW) Date: Mon, 21 Sep 2020 09:31:46 -0600 Subject: [Elecraft] Elecraft 20 Meter SSB Net 9/20/2020 Message-ID: <3DAF3C8C-A6A5-485B-9F00-2211B1F08977@gmail.com> Our regular net control, Eric WB9JNZ, was a bit under the weather today and John N6JW stepped to the plate and hit a home run as net control. Thanks to John and the relay stations that allowed us to check in 22 stations (including two first time check ins) under challenging conditions. Propagation was strange today with deep QSB not to mention QRM from several QSO parties. N6JW John CA K3 936 Net Control AH6IO Glen HI K3S 11831 K8NU Carl OH K3S 10996 KB9AVO Paul IN K3S 11453 W1NGA Al CO KX2 2002 WA5DSS Bill TX K2/100 6746 K4HYK Hank GA K3S 11697 AE6JV Bill NH K3 6299 KB3FBR Joe PA K2 6178 W4DML Doug TN K3 6433 N9IJ Chris IL KX2 874 First time check in N8SBE Dave MI K3S 11361 K6VWE Stan MI K3 650 K7BRR Bill AZ K3S 10939 WM6P Steve GA K3S 11453 Relay Station K7JG John WA KX3 3519 W5SV Dave TX K3 5354 Relay Station VE7XTA Tom BC K3S 10393 AB7CE Roy MT K2/100 40 NS7P Phil OR K3 1826 K0DOM Dave MN KX3 11172 First time check in NC0JW Jim CO KX3 1356 The Sunday Elecraft SSB Nets begin with the 20 Meter Net at 1800 UTC on or about 14.3035 MHz with Eric WB9JNZ as Net Control in Chicago. The 40 Meter SSB net follows at 1900 UTC with Steve WM6P in Georgia serving as net control on 7.280 MHz. At 0100 UTC the 80 Meter SSB Net meets on 3.942 MHz with Net Control Paul KB9AVO from Indiana. With propagation at a low point we employ several relay stations located around the continental USA to assist with check ins. As conditions permit we take questions and comments after check ins. Give one or all of the SSB nets a try next Sunday. Jim White - NC0JW ars.nc0jw at gmail.com From 73.de.ne1ee at gmail.com Mon Sep 21 11:44:52 2020 From: 73.de.ne1ee at gmail.com (Rich NE1EE) Date: Mon, 21 Sep 2020 11:44:52 -0400 Subject: [Elecraft] Cheap Keyer Paddle In-Reply-To: <1187414843.23681689.1600525655018.JavaMail.zimbra@embarqma il.com> References: <1187414843.23681689.1600525655018.JavaMail.zimbra@embarqmail.com> Message-ID: <5f68ca81.1c69fb81.21baf.0b54@mx.google.com> On 2020-09-19 10:27:-0400, Wilson Lamb wrote: > >https://www.youtube.com/watch?v=Sps6gsqwzws > >I love the paper clamp idea! https://www.youtube.com/watch?feature=youtu.be&v=RtEYI4aF7j4&app=desktop Great, clever ideas! Thanks! From ac5p at sbcglobal.net Mon Sep 21 12:00:23 2020 From: ac5p at sbcglobal.net (Mike Maloney) Date: Mon, 21 Sep 2020 16:00:23 +0000 (UTC) Subject: [Elecraft] Cheap Keyer Paddle In-Reply-To: <5f68ca81.1c69fb81.21baf.0b54@mx.google.com> References: <1187414843.23681689.1600525655018.JavaMail.zimbra@embarqmail.com> <1187414843.23681689.1600525655018.JavaMail.zimbra@embarqma il.com> <5f68ca81.1c69fb81.21baf.0b54@mx.google.com> Message-ID: <1335688748.4385851.1600704023309@mail.yahoo.com> Here is another idea.? Search Te-Ne-Ke CW key at youtube.com? ?Mike, AC5P https://www.youtube.com/watch?v=2PZantLJRwc? ?? On Monday, September 21, 2020, 10:46:55 AM CDT, Rich NE1EE <73.de.ne1ee at gmail.com> wrote: On 2020-09-19 10:27:-0400, Wilson? Lamb wrote: > >https://www.youtube.com/watch?v=Sps6gsqwzws > >I love the paper clamp idea!? https://www.youtube.com/watch?feature=youtu.be&v=RtEYI4aF7j4&app=desktop Great, clever ideas! Thanks! ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to ac5p at sbcglobal.net From ardrhi at gmail.com Mon Sep 21 12:45:36 2020 From: ardrhi at gmail.com (Gwen Patton) Date: Mon, 21 Sep 2020 12:45:36 -0400 Subject: [Elecraft] Cheap Keyer Paddle In-Reply-To: <1335688748.4385851.1600704023309@mail.yahoo.com> References: <1187414843.23681689.1600525655018.JavaMail.zimbra@embarqmail.com> <5f68ca81.1c69fb81.21baf.0b54@mx.google.com> <1335688748.4385851.1600704023309@mail.yahoo.com> Message-ID: I own two Te-Ne-Kes. I use them in the field, mostly, though I have one of them screwed to a wooden base, weighted with stick-on iron tire balance weights. They work like a charm. -=-=-=-=-=-=-=-=- 73, Gwen, NG3P On Mon, Sep 21, 2020 at 12:01 PM Mike Maloney wrote: > Here is another idea. Search Te-Ne-Ke CW key at youtube.com Mike, AC5P > https://www.youtube.com/watch?v=2PZantLJRwc > > > > On Monday, September 21, 2020, 10:46:55 AM CDT, Rich NE1EE < > 73.de.ne1ee at gmail.com> wrote: > > On 2020-09-19 10:27:-0400, Wilson Lamb wrote: > > > >https://www.youtube.com/watch?v=Sps6gsqwzws > > > >I love the paper clamp idea! > https://www.youtube.com/watch?feature=youtu.be&v=RtEYI4aF7j4&app=desktop > > Great, clever ideas! Thanks! > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ac5p at sbcglobal.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ardrhi at gmail.com From nr4c at widomaker.com Mon Sep 21 13:10:35 2020 From: nr4c at widomaker.com (Nr4c) Date: Mon, 21 Sep 2020 13:10:35 -0400 Subject: [Elecraft] Cheap Keyer Paddle In-Reply-To: <1335688748.4385851.1600704023309@mail.yahoo.com> References: <1335688748.4385851.1600704023309@mail.yahoo.com> Message-ID: <6E1B9038-B16F-45F6-9173-4F4BE76E5F4B@widomaker.com> Also lookup Arizona ScQRPion iambic paddle. May be a kit available. Used to be $27 for kit. Sent from my iPhone ...nr4c. bill > On Sep 21, 2020, at 12:02 PM, Mike Maloney wrote: > > ? Here is another idea. Search Te-Ne-Ke CW key at youtube.com Mike, AC5P > https://www.youtube.com/watch?v=2PZantLJRwc > > > > On Monday, September 21, 2020, 10:46:55 AM CDT, Rich NE1EE <73.de.ne1ee at gmail.com> wrote: > >> On 2020-09-19 10:27:-0400, Wilson Lamb wrote: >> >> https://www.youtube.com/watch?v=Sps6gsqwzws >> >> I love the paper clamp idea! https://www.youtube.com/watch?feature=youtu.be&v=RtEYI4aF7j4&app=desktop > > Great, clever ideas! Thanks! > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ac5p at sbcglobal.net > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From 73.de.ne1ee at gmail.com Mon Sep 21 16:32:01 2020 From: 73.de.ne1ee at gmail.com (Rich NE1EE) Date: Mon, 21 Sep 2020 16:32:01 -0400 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <5f690dce.1c69fb81.7f46a.2b2a@mx.google.com> Actually, I use radians all the time. Probably one of the least recognized, but common, uses is in firearm scopes. My Falcon Optics M18+ 4-18-44 is mil/mil. WAY easier to scale than MOA. I have been metric for decades. Went that way in the 70s, and never looked back. Had to go to Canada to get my first metric tape so that my ham measurements were easier. I use metric in everything...including the table that I made. https://drive.google.com/file/d/1-kXMx8i1qiBQSUYgWUzdP9isucuOCopv/view?usp=sharing Not only are the measurements metric, but the table has nearly 100 unique angles. All my woodworking buddies said that it was not possible to make a table this accurately. Picture attached, because it's hard to describe. I use decimal angles for those. Yep. You can really cut an angle of 10.3 degrees on a table saw. I'd have been just as happy w radians (remember those mils), but couldn't find a miter in radians. I use degrees because I am comfortable with them, but the same goes for radians. Fer us hams, 2 pi rads/s is 1 Hz. Grads have their place, but I don't see them catching on. Geometrically, degrees make sense, as do radians, but grads, to me, grads have more "people intuition" sense...just not popular. Ya gotta admit that grads are easier than adding and subtracting from 360 if you're on a hike. At that, radians would also be easy, as long as you don't mind 2pi ;-) Finding a reverse course, pretty easy; right angles, not so much ;-) On 2020-09-20 11:25:-0700, Fred Jensen wrote: >You didn't have to use gradians too?? Smoke has cleared here in NW NV for the last two or so days, SW winds will likely bring it back tomorrow. >73, >Fred ["Skip"] K6DGW > >On 9/19/2020 9:22 PM, kevinr wrote: >>I spent the week writing some graphics code for a 3D engine.? Each trigonometric function requires a conversion factor.? Really, who thinks in radians?? "I'll cut this board at an angle of PI/4 +/- 2 deciradians."? I'll stick with 360 degrees instead.? If it was good enough for the Babylonians it's good enough for us.? Fie on radian measure. ~R~ 72/73 de Rich NE1EE On the banks of the Piscataqua From ae7us.rocky at gmail.com Mon Sep 21 16:33:29 2020 From: ae7us.rocky at gmail.com (Rocky AE7US) Date: Mon, 21 Sep 2020 13:33:29 -0700 Subject: [Elecraft] raspy cw audio on K3--but OK after power cycle Message-ID: I just turned on the rig, went to the CW portion of 20 meters, and when I tuned in on a strong CW signal, the audio was raspy and distorted. After turning the radio off and then on again, the signal sounded normal. Any ideas? Thanks, Rocky, AE7US From ab7echo at gmail.com Mon Sep 21 16:49:47 2020 From: ab7echo at gmail.com (David Gilbert) Date: Mon, 21 Sep 2020 13:49:47 -0700 Subject: [Elecraft] raspy cw audio on K3--but OK after power cycle In-Reply-To: References: Message-ID: <09b2988b-7a09-4b94-6185-d7aec9c05193@gmail.com> Not sure how you expect anyone to help with so little information provided. Did it happen only once or was it repeatable??? Do you have other gear (amp, SWR meter, antenna switch, autotuner, powered speakers, etc) connected to the K3 that get activated when the K3 turns on? Did the problem show up on headphones or speakers? Did you only check one strong signal the first time or did you try others?? In other words, how do you know that the raspy signal wasn't a temporary problem on the other end? But yes, I suppose the problem could have been a scratchy relay in the K3 somewhere.? That just seems less likely to me than other possibilities. Dave?? AB7E On 9/21/2020 1:33 PM, Rocky AE7US wrote: > I just turned on the rig, went to the CW portion of 20 meters, and when I > tuned in on a strong CW signal, the audio was raspy and distorted. After > turning the radio off and then on again, the signal sounded normal. Any > ideas? > > Thanks, > > Rocky, AE7US From rick.nk7i at gmail.com Mon Sep 21 17:36:14 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Mon, 21 Sep 2020 14:36:14 -0700 Subject: [Elecraft] raspy cw audio on K3--but OK after power cycle In-Reply-To: <09b2988b-7a09-4b94-6185-d7aec9c05193@gmail.com> References: <09b2988b-7a09-4b94-6185-d7aec9c05193@gmail.com> Message-ID: Occasionally the filters, shift center, NR or NV kick in and I've always written that off as random output from the computer.? A filter reset (long push on the shift knob) or a mode change usually brings it back to what is wanted. 73, Rick NK7I On 9/21/2020 1:49 PM, David Gilbert wrote: > > Not sure how you expect anyone to help with so little information > provided. > > Did it happen only once or was it repeatable??? Do you have other gear > (amp, SWR meter, antenna switch, autotuner, powered speakers, etc) > connected to the K3 that get activated when the K3 turns on? Did the > problem show up on headphones or speakers? > > Did you only check one strong signal the first time or did you try > others?? In other words, how do you know that the raspy signal wasn't > a temporary problem on the other end? > > But yes, I suppose the problem could have been a scratchy relay in the > K3 somewhere.? That just seems less likely to me than other > possibilities. > > Dave?? AB7E > > > > > On 9/21/2020 1:33 PM, Rocky AE7US wrote: >> I just turned on the rig, went to the CW portion of 20 meters, and >> when I >> tuned in on a strong CW signal, the audio was raspy and distorted.? >> After >> turning the radio off and then on again, the signal sounded normal.? Any >> ideas? >> >> Thanks, >> >> Rocky, AE7US > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 frantz at pwpconsult.com Mon Sep 21 18:02:24 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Mon, 21 Sep 2020 18:02:24 -0400 Subject: [Elecraft] Cheap Keyer Paddle In-Reply-To: <1187414843.23681689.1600525655018.JavaMail.zimbra@embarqmail.com> Message-ID: I have made 2 keys. The simple one used a SPDT spring switch which might have come from some old telephone equipment. I added a finger pad cut from an old credit card and bolted it to the top of the Altoids box which holds the Rockmite. It does seem to work. The more complex one used the arm bearing from an old PC hard disk with some brass metal parts and a wooden base. It uses repelling magnets instead of springs and some short pieces of silver wire, crossed to each other, as the contact points. All the corrosion products of silver are conductive so these contacts need less cleaning. The big surprise during development was discovering that the bearing was a near perfect insulator. That's why there is a bit of wire going from the paddle arm to ground. After all, much of the fun in ham radio is in building stuff. 73 Bill AE6JV On 9/19/20 at 10:27 AM, infomet at embarqmail.com (Wilson Lamb) wrote: >Seems a perfect time to revive ham tradition and make one. >Do you have any tools, soldering iron? >Hacksaw blade comes to mind, maybe a couple of quarters for pads, screws for contacts? >I know you can Google: https://www.youtube.com/watch?v=Sps6gsqwzws ---------------------------------------------------- Bill Frantz | Art is how we decorate space, 408-348-7900 | music is how we decorate time. www.pwpconsult.com | -Jean-Michel Basquiat From ae7us.rocky at gmail.com Mon Sep 21 18:17:19 2020 From: ae7us.rocky at gmail.com (Rocky AE7US) Date: Mon, 21 Sep 2020 15:17:19 -0700 Subject: [Elecraft] raspy cw audio on K3--but OK after power cycle In-Reply-To: References: <09b2988b-7a09-4b94-6185-d7aec9c05193@gmail.com> Message-ID: Thanks for the replies. This is an intermittent problem that has happened a few dozen times over the past several weeks. The audio is distorted on both headphones and speaker. Nothing else powers up with the rig other than a P3. On Mon, Sep 21, 2020 at 2:37 PM Rick NK7I wrote: > Occasionally the filters, shift center, NR or NV kick in and I've always > written that off as random output from the computer. A filter reset > (long push on the shift knob) or a mode change usually brings it back to > what is wanted. > > 73, > Rick NK7I > > On 9/21/2020 1:49 PM, David Gilbert wrote: > > > > Not sure how you expect anyone to help with so little information > > provided. > > > > Did it happen only once or was it repeatable? Do you have other gear > > (amp, SWR meter, antenna switch, autotuner, powered speakers, etc) > > connected to the K3 that get activated when the K3 turns on? Did the > > problem show up on headphones or speakers? > > > > Did you only check one strong signal the first time or did you try > > others? In other words, how do you know that the raspy signal wasn't > > a temporary problem on the other end? > > > > But yes, I suppose the problem could have been a scratchy relay in the > > K3 somewhere. That just seems less likely to me than other > > possibilities. > > > > Dave AB7E > > > > > > > > > > On 9/21/2020 1:33 PM, Rocky AE7US wrote: > >> I just turned on the rig, went to the CW portion of 20 meters, and > >> when I > >> tuned in on a strong CW signal, the audio was raspy and distorted. > >> After > >> turning the radio off and then on again, the signal sounded normal. Any > >> ideas? > >> > >> Thanks, > >> > >> Rocky, AE7US > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.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 ae7us.rocky at gmail.com From QRP5W at roadrunner.com Mon Sep 21 19:37:13 2020 From: QRP5W at roadrunner.com (QRP5W at roadrunner.com) Date: Mon, 21 Sep 2020 23:37:13 +0000 Subject: [Elecraft] Cheap Keyer Paddle Message-ID: <92177ef1c33281e74c16079821ce6925cf7d9bc4@webmail> A sleeper of a paddle is the Whiterook MK-44 from electronicsusa.com. I hesitate to call it a cheap paddle, as that tends to refer to an inferior product. It is a robust, affordable, lightweight paddle that will continue to work even after you throw it at a wall. For a few pennies, you can add a velcro leg strap to it for field use. Whiterook also offers the TiCK keyer to this same paddle, called the MK-64. I have been running both the paddle and the paddle/keyer for nearly twenty years and they have proven to be a joy to use. I was drawn to the MK-64 paddle/keyer for use in the monthly Spartan Sprint activity for its extremely low weight and low current. I still have the same coin cell in it that I installed nearly twenty years ago. They offer other products, single lever paddles, straight keys, combos. They will certainly not break the bank. 72, Howard Kraus, K2UD From mikekopacki at gmail.com Tue Sep 22 08:30:02 2020 From: mikekopacki at gmail.com (NJMike) Date: Tue, 22 Sep 2020 05:30:02 -0700 (MST) Subject: [Elecraft] =?utf-8?b?4oCcTXV0ZSB0aGlzIHRvcGlj4oCd?= Message-ID: <1600777802329-0.post@n2.nabble.com> I belong to three other reflectors on groups.io and they all have a link at the bottom of the original post to stop receiving more replies to the topic. It?s called ?Mute This Topic?. Is there a way to add this to elecraft posts? Thanks, Mike NJ2OM -- Sent from: http://elecraft.365791.n2.nabble.com/ From 99sunset at gmail.com Tue Sep 22 09:12:40 2020 From: 99sunset at gmail.com (Steve Hall) Date: Tue, 22 Sep 2020 09:12:40 -0400 Subject: [Elecraft] 40 meter net 9-20-2020 Message-ID: Sundays at 1900z 7280 kHz Conditions were poor but manageable. WM6P GA STEVE K3S NET CONTROL K8NU OH CARL K3S N8SBE MI DAVE K3S K4ISW VA LEE K3S AE6JV NH BILL K3 NC0JW CO JIM KX3 Good seeing a number of you on the zoom meeting. I thought the 80 meter net went well. I am hopeful that as winter approaches, the band noise will lessen on the lower frequencies. Signals on 80 were strong but hindered by the QRN. From no9e at arrl.net Tue Sep 22 10:55:26 2020 From: no9e at arrl.net (Ignacy) Date: Tue, 22 Sep 2020 07:55:26 -0700 (MST) Subject: [Elecraft] raspy cw audio on K3--but OK after power cycle In-Reply-To: References: <09b2988b-7a09-4b94-6185-d7aec9c05193@gmail.com> Message-ID: <1600786526964-0.post@n2.nabble.com> Once my old K3 2k series had a signal that was > 20 KHz wide and jammed dxpeditions nearby. The problem subsided on its own although the receive was OK all the time. Perhaps reseating the modules would help. Ignacy NO9E -- Sent from: http://elecraft.365791.n2.nabble.com/ From k3ggn at wi.rr.com Tue Sep 22 12:01:21 2020 From: k3ggn at wi.rr.com (K3GGN) Date: Tue, 22 Sep 2020 09:01:21 -0700 (MST) Subject: [Elecraft] Set up remote KPA1500 communication using remoterig ddns service Message-ID: <1600790481496-0.post@n2.nabble.com> Is it possible to use the xxxxx.ddns.remoterig.com service with user name and password to communicate with a remote Elecraft KPA1500 amplifier directly without the need for an attached pc? How may that be done? KPA1500 Remote application doesn't seem to be configurable to accomplish this. Dean K3GGN -- Sent from: http://elecraft.365791.n2.nabble.com/ From norrislawfirm2 at gmail.com Tue Sep 22 16:10:02 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Tue, 22 Sep 2020 13:10:02 -0700 Subject: [Elecraft] AUXBUS CABLE Gouge Message-ID: Dear Gang: I have several old auxbus cables, the type that is about 3/8" thick, and has a bend radius of about 1/4 mile. Several pins are missing. The cable clamping thumbscrews are not secured, and can float free in a zero-G environment. I have other AUXBUS cables that are thin, have nice ergo thumbscrews, but are not missing any pins. 1) How many types of AUXBUS cables are there? B) Can the AUXBUS cable that has all of it's pins be used between a K3 and an elecraft amplifier? Between an elecraft transverter cable and AUXBUS (assuming the specially-made-per-the-XV manual cable is in between) port via a gazillion all straight-wired Y adapters? I think I knew this once but no more. Thanks. 73 Eric WD6DBM From jackbrindle at me.com Tue Sep 22 17:27:28 2020 From: jackbrindle at me.com (Jack Brindle) Date: Tue, 22 Sep 2020 14:27:28 -0700 Subject: [Elecraft] AUXBUS CABLE Gouge In-Reply-To: References: Message-ID: <7DAF361D-D909-4769-A2C5-ABDF37FDA95D@me.com> See below... > On Sep 22, 2020, at 1:10 PM, Eric Norris wrote: > > Dear Gang: > > I have several old auxbus cables, the type that is about 3/8" thick, and > has a bend radius of about 1/4 mile. Several pins are missing. The cable > clamping thumbscrews are not secured, and can float free in a zero-G > environment. > > I have other AUXBUS cables that are thin, have nice ergo thumbscrews, but > are not missing any pins. > > 1) How many types of AUXBUS cables are there? No idea. I would guess two or three. At one point we switched to a full cable with adapters that disconnected the pertinent pins. > B) Can the AUXBUS cable that has all of it's pins be used between a K3 and > an elecraft amplifier? Between an elecraft transverter cable and AUXBUS > (assuming the specially-made-per-the-XV manual cable is in between) port > via a gazillion all straight-wired Y adapters? No, definitely not. Take a look at the KPAK3AUX K3 Cable diagram near the back of the KPA500 manual - it is on page 45 of the E1 version. It shows that the following pins are not connected: 1, 4, 6, 7, 8. Of these pins 7 and 8 must NOT be connected between the KPA500 and the K3. The others listed are not used by the KPA. Also, Pin 11 is the INHIBIT input to the KPA, while it is DIGOUT1 on the K3. If you use DIGOUT1 for some function (like enabling an external Preamp like the PR6), be sure that the KPA?s INHIBIT setting is turned off. That thick cable with missing pins can be very useful. So can the others, if you make sure the appropriate pins do not connect to the amplifiers. A small straight-though adapter with the appropriate pins broken off can be quite helpful here. 73! Jack, W6FB > > I think I knew this once but no more. > > Thanks. > > 73 Eric WD6DBM > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From rick at tavan.com Tue Sep 22 20:28:37 2020 From: rick at tavan.com (Rick Tavan) Date: Tue, 22 Sep 2020 17:28:37 -0700 Subject: [Elecraft] Set up remote KPA1500 communication using remoterig ddns service In-Reply-To: <1600790481496-0.post@n2.nabble.com> References: <1600790481496-0.post@n2.nabble.com> Message-ID: Yes, I do it all the time. You may have to set up some port forwarding and how to do that depends on your router(s). /Rick N6XI On Tue, Sep 22, 2020 at 9:03 AM K3GGN wrote: > Is it possible to use the xxxxx.ddns.remoterig.com service with user name > and > password to communicate with a remote Elecraft KPA1500 amplifier directly > without the need for an attached pc? How may that be done? > > KPA1500 Remote application doesn't seem to be configurable to accomplish > this. > > Dean > K3GGN > > > > -- > 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 rtavan at gmail.com > -- -- Rick Tavan Truckee and Saratoga, CA From k3ggn at wi.rr.com Wed Sep 23 07:56:50 2020 From: k3ggn at wi.rr.com (Dean) Date: Wed, 23 Sep 2020 06:56:50 -0500 Subject: [Elecraft] Set up remote KPA1500 communication using remoterig ddns service In-Reply-To: References: <1600790481496-0.post@n2.nabble.com> Message-ID: <8aeaf08b-533d-fafc-9264-7e3bd67f8860@wi.rr.com> Great news Rick.? Can you give me some details to get me started?? Are you using the "KPA1500 Remote" application?? No problems with port forwarding my router. Dean K3GGN ~~~ On 9/22/2020 7:28 PM, Rick Tavan wrote: > Yes, I do it all the time. You may have to set up some port forwarding > and how to do that depends on your router(s). > > /Rick N6XI > > On Tue, Sep 22, 2020 at 9:03 AM K3GGN > wrote: > > Is it possible to use the xxxxx.ddns.remoterig.com > service with user name and > password to communicate with a remote Elecraft KPA1500 amplifier > directly > without the need for an attached pc?? How may that be done? > > KPA1500 Remote application doesn't seem to be configurable to > accomplish > this. > > Dean > K3GGN > > > > -- > 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 rtavan at gmail.com > > > > -- > -- > > Rick Tavan > Truckee and Saratoga, CA From bobdehaney at gmx.net Wed Sep 23 09:20:59 2020 From: bobdehaney at gmx.net (Bob DeHaney) Date: Wed, 23 Sep 2020 15:20:59 +0200 Subject: [Elecraft] K3 Error IF1 HELP Message-ID: <001501d691ac$60cda2a0$2268e7e0$@gmx.net> Please disregard my previous incorrect assumptions. The KPF3A mod is installed correctly. However, after installing the KBPF3A I still get this error at power on. I can find no information regarding correction or troubleshooting this error. The old procedure has been removed from the K3 Menu List. Vy 73 de Bob DJ0RD/WU5T From mike.harris at horizon.co.fk Wed Sep 23 11:07:39 2020 From: mike.harris at horizon.co.fk (Mike Harris) Date: Wed, 23 Sep 2020 12:07:39 -0300 Subject: [Elecraft] K3 Error IF1 HELP In-Reply-To: <001501d691ac$60cda2a0$2268e7e0$@gmx.net> References: <001501d691ac$60cda2a0$2268e7e0$@gmx.net> Message-ID: <53ee81d7-b265-40c9-dee2-7b528b9fb26a@horizon.co.fk> Bob, K3 (not K3s) error code IF1 includes a reference to the KNB3 noise blanker. Did you reinstall the NB correctly? Regards, Mike VP8NO On 23/09/2020 10:20, Bob DeHaney wrote: > > Please disregard my previous incorrect assumptions. The KPF3A mod is installed correctly. > > However, after installing the KBPF3A I still get this error at power on. I can find no information regarding correction or troubleshooting this error. The old procedure has been removed from the K3 Menu List. > > Vy 73 de Bob DJ0RD/WU5T From 73guddx at gmail.com Wed Sep 23 14:33:01 2020 From: 73guddx at gmail.com (Tony) Date: Wed, 23 Sep 2020 14:33:01 -0400 Subject: [Elecraft] 4-Band K1 For Sale Message-ID: All: I have a 4-band K1 for sale in great shape. It has the built-in tuner and covers 40/30/20/15 meters. It was recently aligned and serviced by Dave, W8FGU. Works great, no scratches, good build. Pictures upon request. Price: $475 shipped CONUS. Paypal only please. Tony -K2MO From dean.k2ww at gmail.com Thu Sep 24 07:48:34 2020 From: dean.k2ww at gmail.com (Dean L) Date: Thu, 24 Sep 2020 07:48:34 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <34b82b97-c8b0-bee9-c563-5d1c0d55e8b9@gmail.com> References: <0be9af31-ce4f-57ca-f4e9-7897ba880f64@comcast.net> <3d4c08de-309a-e9c9-4618-2ecc5beba456@foothill.net> <34b82b97-c8b0-bee9-c563-5d1c0d55e8b9@gmail.com> Message-ID: Only about 35 years... I too thought I don't remember the commercial, but I do remember the woman breaking the glass with her voice. And the "cool" guy in the overstuffed chair, the music blowing his hair back and his wine glasses to his hand You've come a long way baby! 73 Dean On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: > > > Yes, that was the line. I thought something sounded off in what KD7YZ > wrote but I couldn't place it. I do certainly remember the commercial, > though, and I don't think it was all that long ago that it aired. > > Dave AB7E > > > > > > On 9/20/2020 11:43 AM, Ken Widelitz wrote: > > I always thought the line was "Is it live or is it Memorex?" > > > > On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: > > > >> and some of us remember the arrival of the first TV station in town > >> > >> 73, > >> > >> Fred ["Skip"] K6DGW > >> Sparks NV DM09dn > >> Washoe County > >> > >> On 9/20/2020 10:11 AM, David Gilbert wrote: > >>> You're forgetting that you're talking to hams here ... almost all of > >>> us are likely to be old enough to remember that commercial. > >>> > >>> 73, > >>> Dave AB7E > >>> > >>> > >>> > >>> On 9/20/2020 5:40 AM, Bob KD7YZ wrote: > >>>> Magic or Memorex? > >>>> (most of you are too young to remember the TV commercial) > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to kwidelitz 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 ab7echo at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to dean.k2ww at gmail.com From nr4c at widomaker.com Thu Sep 24 08:18:47 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 24 Sep 2020 08:18:47 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: ?I can?t believe I ate the whole thing?? Sent from my iPhone ...nr4c. bill > On Sep 24, 2020, at 7:51 AM, Dean L wrote: > > ?Only about 35 years... > I too thought I don't remember the commercial, but I do remember the woman > breaking the glass with her voice. > And the "cool" guy in the overstuffed chair, the music blowing his hair > back and his wine glasses to his hand > You've come a long way baby! > 73 > Dean > >> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >> >> >> >> Yes, that was the line. I thought something sounded off in what KD7YZ >> wrote but I couldn't place it. I do certainly remember the commercial, >> though, and I don't think it was all that long ago that it aired. >> >> Dave AB7E >> >> >> >> >> >>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>> I always thought the line was "Is it live or is it Memorex?" >>> >>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>> >>>> and some of us remember the arrival of the first TV station in town >>>> >>>> 73, >>>> >>>> Fred ["Skip"] K6DGW >>>> Sparks NV DM09dn >>>> Washoe County >>>> >>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>> You're forgetting that you're talking to hams here ... almost all of >>>>> us are likely to be old enough to remember that commercial. >>>>> From dave at nk7z.net Thu Sep 24 08:35:30 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 24 Sep 2020 05:35:30 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: LSMFT... Remember that one? The clean version that is... 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources On 9/24/20 5:18 AM, Nr4c wrote: > ?I can?t believe I ate the whole thing?? > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >> >> ?Only about 35 years... >> I too thought I don't remember the commercial, but I do remember the woman >> breaking the glass with her voice. >> And the "cool" guy in the overstuffed chair, the music blowing his hair >> back and his wine glasses to his hand >> You've come a long way baby! >> 73 >> Dean >> >>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>> >>> >>> >>> Yes, that was the line. I thought something sounded off in what KD7YZ >>> wrote but I couldn't place it. I do certainly remember the commercial, >>> though, and I don't think it was all that long ago that it aired. >>> >>> Dave AB7E >>> >>> >>> >>> >>> >>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>> I always thought the line was "Is it live or is it Memorex?" >>>> >>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>> >>>>> and some of us remember the arrival of the first TV station in town >>>>> >>>>> 73, >>>>> >>>>> Fred ["Skip"] K6DGW >>>>> Sparks NV DM09dn >>>>> Washoe County >>>>> >>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>> You're forgetting that you're talking to hams here ... almost all of >>>>>> us are likely to be old enough to remember that commercial. >>>>>> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 nr4c at widomaker.com Thu Sep 24 09:54:19 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 24 Sep 2020 09:54:19 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: Who remembers ?Lucky Strike green has gone to war.? When the green circle changed to red. Sent from my iPhone ...nr4c. bill > On Sep 24, 2020, at 8:37 AM, Dave Cole wrote: > > ?LSMFT... Remember that one? The clean version that is... > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist, RFI > ARRL Asst. Director, NW Division, Technical Resources > >> On 9/24/20 5:18 AM, Nr4c wrote: >> ?I can?t believe I ate the whole thing?? >> Sent from my iPhone >> ...nr4c. bill >>>> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >>> >>> ?Only about 35 years... >>> I too thought I don't remember the commercial, but I do remember the woman >>> breaking the glass with her voice. >>> And the "cool" guy in the overstuffed chair, the music blowing his hair >>> back and his wine glasses to his hand >>> You've come a long way baby! >>> 73 >>> Dean >>> >>>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>>> >>>> >>>> >>>> Yes, that was the line. I thought something sounded off in what KD7YZ >>>> wrote but I couldn't place it. I do certainly remember the commercial, >>>> though, and I don't think it was all that long ago that it aired. >>>> >>>> Dave AB7E >>>> >>>> >>>> >>>> >>>> >>>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>>> I always thought the line was "Is it live or is it Memorex?" >>>>> >>>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>>> >>>>>> and some of us remember the arrival of the first TV station in town >>>>>> >>>>>> 73, >>>>>> >>>>>> Fred ["Skip"] K6DGW >>>>>> Sparks NV DM09dn >>>>>> Washoe County >>>>>> >>>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>>> You're forgetting that you're talking to hams here ... almost all of >>>>>>> us are likely to be old enough to remember that commercial. >>>>>>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 nr4c at widomaker.com From gene.sochor at sbcglobal.net Thu Sep 24 10:50:14 2020 From: gene.sochor at sbcglobal.net (Gene Sochor) Date: Thu, 24 Sep 2020 09:50:14 -0500 Subject: [Elecraft] FS: Microham MicroKeyer II NIB References: Message-ID: New, never used, still in original carton, MicroKeyer II with K3 cableset, external CW/voice memory keypad & CD. $250 including shipping within USA. Was $430+ when purchased. PayPal accepted. N9SW Gene Phone 630-497-2999. From nr4c at widomaker.com Thu Sep 24 11:20:15 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 24 Sep 2020 11:20:15 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: <4A1DBA6F-D597-4DEC-B66C-13F41AD12139@widomaker.com> Sorry. I just realized the original package was green and changed to white, not the circle which has always been red. Sent from my iPhone ...nr4c. bill > On Sep 24, 2020, at 9:56 AM, Nr4c wrote: > > ?Who remembers ?Lucky Strike green has gone to war.? When the green circle changed to red. > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 24, 2020, at 8:37 AM, Dave Cole wrote: >> >> ?LSMFT... Remember that one? The clean version that is... >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist, RFI >> ARRL Asst. Director, NW Division, Technical Resources >> >>>> On 9/24/20 5:18 AM, Nr4c wrote: >>> ?I can?t believe I ate the whole thing?? >>> Sent from my iPhone >>> ...nr4c. bill >>>>> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >>>> >>>> ?Only about 35 years... >>>> I too thought I don't remember the commercial, but I do remember the woman >>>> breaking the glass with her voice. >>>> And the "cool" guy in the overstuffed chair, the music blowing his hair >>>> back and his wine glasses to his hand >>>> You've come a long way baby! >>>> 73 >>>> Dean >>>> >>>>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>>>> >>>>> >>>>> >>>>> Yes, that was the line. I thought something sounded off in what KD7YZ >>>>> wrote but I couldn't place it. I do certainly remember the commercial, >>>>> though, and I don't think it was all that long ago that it aired. >>>>> >>>>> Dave AB7E >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>>>> I always thought the line was "Is it live or is it Memorex?" >>>>>> >>>>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>>>> >>>>>>> and some of us remember the arrival of the first TV station in town >>>>>>> >>>>>>> 73, >>>>>>> >>>>>>> Fred ["Skip"] K6DGW >>>>>>> Sparks NV DM09dn >>>>>>> Washoe County >>>>>>> >>>>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>>>> You're forgetting that you're talking to hams here ... almost all of >>>>>>>> us are likely to be old enough to remember that commercial. >>>>>>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 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 nr4c at widomaker.com From dave at nk7z.net Thu Sep 24 11:24:00 2020 From: dave at nk7z.net (Dave Cole) Date: Thu, 24 Sep 2020 08:24:00 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <4A1DBA6F-D597-4DEC-B66C-13F41AD12139@widomaker.com> References: <4A1DBA6F-D597-4DEC-B66C-13F41AD12139@widomaker.com> Message-ID: <7e976f3d-bd56-4036-8a6d-d2e616210145@nk7z.net> I'm impressed Bill! :) 73, and thanks, Dave (NK7Z) https://www.nk7z.net ARRL Volunteer Examiner ARRL Technical Specialist, RFI ARRL Asst. Director, NW Division, Technical Resources On 9/24/20 8:20 AM, Nr4c wrote: > Sorry. I just realized the original package was green and changed to white, not the circle which has always been red. > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 24, 2020, at 9:56 AM, Nr4c wrote: >> >> ?Who remembers ?Lucky Strike green has gone to war.? When the green circle changed to red. >> >> Sent from my iPhone >> ...nr4c. bill >> >> >>> On Sep 24, 2020, at 8:37 AM, Dave Cole wrote: >>> >>> ?LSMFT... Remember that one? The clean version that is... >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist, RFI >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>>>> On 9/24/20 5:18 AM, Nr4c wrote: >>>> ?I can?t believe I ate the whole thing?? >>>> Sent from my iPhone >>>> ...nr4c. bill >>>>>> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >>>>> >>>>> ?Only about 35 years... >>>>> I too thought I don't remember the commercial, but I do remember the woman >>>>> breaking the glass with her voice. >>>>> And the "cool" guy in the overstuffed chair, the music blowing his hair >>>>> back and his wine glasses to his hand >>>>> You've come a long way baby! >>>>> 73 >>>>> Dean >>>>> >>>>>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>>>>> >>>>>> >>>>>> >>>>>> Yes, that was the line. I thought something sounded off in what KD7YZ >>>>>> wrote but I couldn't place it. I do certainly remember the commercial, >>>>>> though, and I don't think it was all that long ago that it aired. >>>>>> >>>>>> Dave AB7E >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>>>>> I always thought the line was "Is it live or is it Memorex?" >>>>>>> >>>>>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>>>>> >>>>>>>> and some of us remember the arrival of the first TV station in town >>>>>>>> >>>>>>>> 73, >>>>>>>> >>>>>>>> Fred ["Skip"] K6DGW >>>>>>>> Sparks NV DM09dn >>>>>>>> Washoe County >>>>>>>> >>>>>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>>>>> You're forgetting that you're talking to hams here ... almost all of >>>>>>>>> us are likely to be old enough to remember that commercial. >>>>>>>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.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 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 nr4c at widomaker.com From nr4c at widomaker.com Thu Sep 24 11:27:54 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 24 Sep 2020 11:27:54 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <003c01d6927b$7ee6dca0$7cb495e0$@erols.com> References: <003c01d6927b$7ee6dca0$7cb495e0$@erols.com> Message-ID: <340C5D8D-9D9A-43A4-A7B8-1B18A65E6D7E@widomaker.com> I always figured they wanted the dye for camouflage. But the real reason was marketing. Women didn?t care for the old packaging. Sent from my iPhone ...nr4c. bill > On Sep 24, 2020, at 10:03 AM, Charlie T wrote: > > ?I remember, but do you know WHY the green "went to war"? > (Don't cheat and look it up.) > > Charlie k3ICH > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c > Sent: Thursday, September 24, 2020 9:54 AM > To: Dave Cole > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Status of Add-ons for K3? > > Who remembers ?Lucky Strike green has gone to war.? When the green circle changed to red. > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 24, 2020, at 8:37 AM, Dave Cole wrote: >> >> ?LSMFT... Remember that one? The clean version that is... >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist, RFI >> ARRL Asst. Director, NW Division, Technical Resources >> >>>> On 9/24/20 5:18 AM, Nr4c wrote: >>> ?I can?t believe I ate the whole thing?? >>> Sent from my iPhone >>> ...nr4c. bill >>>>> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >>>> >>>> ?Only about 35 years... >>>> I too thought I don't remember the commercial, but I do remember the >>>> woman breaking the glass with her voice. >>>> And the "cool" guy in the overstuffed chair, the music blowing his >>>> hair back and his wine glasses to his hand You've come a long way >>>> baby! >>>> 73 >>>> Dean >>>> >>>>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>>>> >>>>> >>>>> >>>>> Yes, that was the line. I thought something sounded off in what >>>>> KD7YZ wrote but I couldn't place it. I do certainly remember the >>>>> commercial, though, and I don't think it was all that long ago that it aired. >>>>> >>>>> Dave AB7E >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>>>> I always thought the line was "Is it live or is it Memorex?" >>>>>> >>>>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>>>> >>>>>>> and some of us remember the arrival of the first TV station in >>>>>>> town >>>>>>> >>>>>>> 73, >>>>>>> >>>>>>> Fred ["Skip"] K6DGW >>>>>>> Sparks NV DM09dn >>>>>>> Washoe County >>>>>>> >>>>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>>>> You're forgetting that you're talking to hams here ... almost >>>>>>>> all of us are likely to be old enough to remember that commercial. >>>>>>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 >> 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 pincon at erols.com > From pincon at erols.com Thu Sep 24 10:03:28 2020 From: pincon at erols.com (Charlie T) Date: Thu, 24 Sep 2020 10:03:28 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: <003c01d6927b$7ee6dca0$7cb495e0$@erols.com> I remember, but do you know WHY the green "went to war"? (Don't cheat and look it up.) Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c Sent: Thursday, September 24, 2020 9:54 AM To: Dave Cole Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Status of Add-ons for K3? Who remembers ?Lucky Strike green has gone to war.? When the green circle changed to red. Sent from my iPhone ...nr4c. bill > On Sep 24, 2020, at 8:37 AM, Dave Cole wrote: > > ?LSMFT... Remember that one? The clean version that is... > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist, RFI > ARRL Asst. Director, NW Division, Technical Resources > >> On 9/24/20 5:18 AM, Nr4c wrote: >> ?I can?t believe I ate the whole thing?? >> Sent from my iPhone >> ...nr4c. bill >>>> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >>> >>> ?Only about 35 years... >>> I too thought I don't remember the commercial, but I do remember the >>> woman breaking the glass with her voice. >>> And the "cool" guy in the overstuffed chair, the music blowing his >>> hair back and his wine glasses to his hand You've come a long way >>> baby! >>> 73 >>> Dean >>> >>>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>>> >>>> >>>> >>>> Yes, that was the line. I thought something sounded off in what >>>> KD7YZ wrote but I couldn't place it. I do certainly remember the >>>> commercial, though, and I don't think it was all that long ago that it aired. >>>> >>>> Dave AB7E >>>> >>>> >>>> >>>> >>>> >>>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>>> I always thought the line was "Is it live or is it Memorex?" >>>>> >>>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>>> >>>>>> and some of us remember the arrival of the first TV station in >>>>>> town >>>>>> >>>>>> 73, >>>>>> >>>>>> Fred ["Skip"] K6DGW >>>>>> Sparks NV DM09dn >>>>>> Washoe County >>>>>> >>>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>>> You're forgetting that you're talking to hams here ... almost >>>>>>> all of us are likely to be old enough to remember that commercial. >>>>>>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 > 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 pincon at erols.com From pincon at erols.com Thu Sep 24 10:11:15 2020 From: pincon at erols.com (Charlie T) Date: Thu, 24 Sep 2020 10:11:15 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: <003d01d6927c$94dd7630$be986290$@erols.com> The circle was always red. What changed was the green package (Chromium) and gold (Copper) stripes. Although it was more a marketing ploy, which worked by-the-way, than a real war effort. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c Sent: Thursday, September 24, 2020 9:54 AM To: Dave Cole Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] Status of Add-ons for K3? Who remembers ?Lucky Strike green has gone to war.? When the green circle changed to red. Sent from my iPhone ...nr4c. bill > On Sep 24, 2020, at 8:37 AM, Dave Cole wrote: > > ?LSMFT... Remember that one? The clean version that is... > > 73, and thanks, > Dave (NK7Z) > https://www.nk7z.net > ARRL Volunteer Examiner > ARRL Technical Specialist, RFI > ARRL Asst. Director, NW Division, Technical Resources > >> On 9/24/20 5:18 AM, Nr4c wrote: >> ?I can?t believe I ate the whole thing?? >> Sent from my iPhone >> ...nr4c. bill >>>> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >>> >>> ?Only about 35 years... >>> I too thought I don't remember the commercial, but I do remember the >>> woman breaking the glass with her voice. >>> And the "cool" guy in the overstuffed chair, the music blowing his >>> hair back and his wine glasses to his hand You've come a long way >>> baby! >>> 73 >>> Dean >>> >>>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>>> >>>> >>>> >>>> Yes, that was the line. I thought something sounded off in what >>>> KD7YZ wrote but I couldn't place it. I do certainly remember the >>>> commercial, though, and I don't think it was all that long ago that it aired. >>>> >>>> Dave AB7E >>>> >>>> >>>> >>>> >>>> >>>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>>> I always thought the line was "Is it live or is it Memorex?" >>>>> >>>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>>> >>>>>> and some of us remember the arrival of the first TV station in >>>>>> town >>>>>> >>>>>> 73, >>>>>> >>>>>> Fred ["Skip"] K6DGW >>>>>> Sparks NV DM09dn >>>>>> Washoe County >>>>>> >>>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>>> You're forgetting that you're talking to hams here ... almost >>>>>>> all of us are likely to be old enough to remember that commercial. >>>>>>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 > 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 pincon at erols.com From w0eb at cox.net Thu Sep 24 11:41:17 2020 From: w0eb at cox.net (Jim Sheldon) Date: Thu, 24 Sep 2020 10:41:17 -0500 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <003d01d6927c$94dd7630$be986290$@erols.com> References: <003d01d6927c$94dd7630$be986290$@erols.com> Message-ID: What, may I ask do these cigarette posts have to do with Elecraft radios? You guys are WAY out of line. W0EB Sent from my iPad > On Sep 24, 2020, at 10:38 AM, Charlie T wrote: > > ?The circle was always red. > What changed was the green package (Chromium) and gold (Copper) stripes. > Although it was more a marketing ploy, which worked by-the-way, than a real war effort. > > 73, Charlie k3ICH > > > > -----Original Message----- > From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c > Sent: Thursday, September 24, 2020 9:54 AM > To: Dave Cole > Cc: elecraft at mailman.qth.net > Subject: Re: [Elecraft] Status of Add-ons for K3? > > Who remembers ?Lucky Strike green has gone to war.? When the green circle changed to red. > > Sent from my iPhone > ...nr4c. bill > > >> On Sep 24, 2020, at 8:37 AM, Dave Cole wrote: >> >> ?LSMFT... Remember that one? The clean version that is... >> >> 73, and thanks, >> Dave (NK7Z) >> https://www.nk7z.net >> ARRL Volunteer Examiner >> ARRL Technical Specialist, RFI >> ARRL Asst. Director, NW Division, Technical Resources >> >>>> On 9/24/20 5:18 AM, Nr4c wrote: >>> ?I can?t believe I ate the whole thing?? >>> Sent from my iPhone >>> ...nr4c. bill >>>>> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >>>> >>>> ?Only about 35 years... >>>> I too thought I don't remember the commercial, but I do remember the >>>> woman breaking the glass with her voice. >>>> And the "cool" guy in the overstuffed chair, the music blowing his >>>> hair back and his wine glasses to his hand You've come a long way >>>> baby! >>>> 73 >>>> Dean >>>> >>>>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>>>> >>>>> >>>>> >>>>> Yes, that was the line. I thought something sounded off in what >>>>> KD7YZ wrote but I couldn't place it. I do certainly remember the >>>>> commercial, though, and I don't think it was all that long ago that it aired. >>>>> >>>>> Dave AB7E >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>>>> I always thought the line was "Is it live or is it Memorex?" >>>>>> >>>>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>>>> >>>>>>> and some of us remember the arrival of the first TV station in >>>>>>> town >>>>>>> >>>>>>> 73, >>>>>>> >>>>>>> Fred ["Skip"] K6DGW >>>>>>> Sparks NV DM09dn >>>>>>> Washoe County >>>>>>> >>>>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>>>> You're forgetting that you're talking to hams here ... almost >>>>>>>> all of us are likely to be old enough to remember that commercial. >>>>>>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.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 >> 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 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 w0eb at cox.net From k9ztv at socket.net Thu Sep 24 11:43:24 2020 From: k9ztv at socket.net (KENT TRIMBLE) Date: Thu, 24 Sep 2020 10:43:24 -0500 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: The advertising slogan meant, "Lucky Strike Means Fine Tobacco."? But during the Truman administration it came to mean "Leave Some Meat for Truman" in response to a proposal urging American families to forego the consumption of meat two days a week. Gotta love bureaucrats. What all this has to do with Elecraft is beyond me.? Good thing the K4 is keeping Eric occupied. 73, Kent? K9ZTV On 9/24/2020 7:35 AM, Dave Cole wrote: > LSMFT... Remember that one? > -- This email has been checked for viruses by AVG. https://www.avg.com From gene.sochor at sbcglobal.net Thu Sep 24 11:48:21 2020 From: gene.sochor at sbcglobal.net (Gene Sochor) Date: Thu, 24 Sep 2020 10:48:21 -0500 Subject: [Elecraft] MicroKeyer II Sold In-Reply-To: References: Message-ID: <88eaff89-04b9-9ced-0e09-6dc5d9e8610d@sbcglobal.net> This item has been sold (in record time....thank you!). On 9/24/2020 9:50 AM, Gene Sochor wrote: > New, never used, still in original carton, MicroKeyer II with K3 > cableset, external CW/voice memory keypad & CD. > $250 including shipping within USA. Was $430+ when purchased. PayPal > accepted. N9SW Gene Phone 630-497-2999. From mike.harris at horizon.co.fk Thu Sep 24 12:12:27 2020 From: mike.harris at horizon.co.fk (Mike Harris) Date: Thu, 24 Sep 2020 13:12:27 -0300 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: <970e9653-99c6-89d3-c9ea-b166e7ee979c@horizon.co.fk> Hi, And a perfect example of why email sorting on subject doesn't work. Regards, Mike VP8NO On 24/09/2020 12:43, KENT TRIMBLE wrote: > What all this has to do with Elecraft is beyond me.? Good thing the K4 > is keeping Eric occupied. > > 73, > > Kent? K9ZTV From nr4c at widomaker.com Thu Sep 24 12:39:52 2020 From: nr4c at widomaker.com (Nr4c) Date: Thu, 24 Sep 2020 12:39:52 -0400 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: References: Message-ID: <09025615-5CA9-4D10-AF0B-D2B377D68350@widomaker.com> Gotta have something to do waiting for our K4s. Sent from my iPhone ...nr4c. bill > On Sep 24, 2020, at 11:41 AM, Jim Sheldon wrote: > > ?What, may I ask do these cigarette posts have to do with Elecraft radios? You guys are WAY out of line. > > W0EB > > Sent from my iPad > >> On Sep 24, 2020, at 10:38 AM, Charlie T wrote: >> >> ?The circle was always red. >> What changed was the green package (Chromium) and gold (Copper) stripes. >> Although it was more a marketing ploy, which worked by-the-way, than a real war effort. >> >> 73, Charlie k3ICH >> >> >> >> -----Original Message----- >> From: elecraft-bounces at mailman.qth.net On Behalf Of Nr4c >> Sent: Thursday, September 24, 2020 9:54 AM >> To: Dave Cole >> Cc: elecraft at mailman.qth.net >> Subject: Re: [Elecraft] Status of Add-ons for K3? >> >> Who remembers ?Lucky Strike green has gone to war.? When the green circle changed to red. >> >> Sent from my iPhone >> ...nr4c. bill >> >> >>>> On Sep 24, 2020, at 8:37 AM, Dave Cole wrote: >>> >>> ?LSMFT... Remember that one? The clean version that is... >>> >>> 73, and thanks, >>> Dave (NK7Z) >>> https://www.nk7z.net >>> ARRL Volunteer Examiner >>> ARRL Technical Specialist, RFI >>> ARRL Asst. Director, NW Division, Technical Resources >>> >>>>> On 9/24/20 5:18 AM, Nr4c wrote: >>>> ?I can?t believe I ate the whole thing?? >>>> Sent from my iPhone >>>> ...nr4c. bill >>>>>> On Sep 24, 2020, at 7:51 AM, Dean L wrote: >>>>> >>>>> ?Only about 35 years... >>>>> I too thought I don't remember the commercial, but I do remember the >>>>> woman breaking the glass with her voice. >>>>> And the "cool" guy in the overstuffed chair, the music blowing his >>>>> hair back and his wine glasses to his hand You've come a long way >>>>> baby! >>>>> 73 >>>>> Dean >>>>> >>>>>> On Sun, Sep 20, 2020, 15:09 David Gilbert wrote: >>>>>> >>>>>> >>>>>> >>>>>> Yes, that was the line. I thought something sounded off in what >>>>>> KD7YZ wrote but I couldn't place it. I do certainly remember the >>>>>> commercial, though, and I don't think it was all that long ago that it aired. >>>>>> >>>>>> Dave AB7E >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>>> On 9/20/2020 11:43 AM, Ken Widelitz wrote: >>>>>>> I always thought the line was "Is it live or is it Memorex?" >>>>>>> >>>>>>>> On Sun, Sep 20, 2020 at 11:33 AM Fred Jensen wrote: >>>>>>> >>>>>>>> and some of us remember the arrival of the first TV station in >>>>>>>> town >>>>>>>> >>>>>>>> 73, >>>>>>>> >>>>>>>> Fred ["Skip"] K6DGW >>>>>>>> Sparks NV DM09dn >>>>>>>> Washoe County >>>>>>>> >>>>>>>> On 9/20/2020 10:11 AM, David Gilbert wrote: >>>>>>>>> You're forgetting that you're talking to hams here ... almost >>>>>>>>> all of us are likely to be old enough to remember that commercial. >>>>>>>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.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 >>> 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 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 w0eb at cox.net > From g4gnx at g4gnx.com Thu Sep 24 12:49:05 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Thu, 24 Sep 2020 16:49:05 +0000 Subject: [Elecraft] Off topic and subject change [was: Status of Add-ons for K3?] In-Reply-To: References: <003d01d6927c$94dd7630$be986290$@erols.com> Message-ID: It really would help if folks were not too lazy to change the subject line to reflect the actual content. Then we could all decide for ourselves whether to bother to start reading it. 73, Alan. G4GNX ------ Original Message ------ From: "Jim Sheldon" To: "Charlie T" Cc: elecraft at mailman.qth.net Sent: 24/09/2020 16:41:17 Subject: Re: [Elecraft] Status of Add-ons for K3? >What, may I ask do these cigarette posts have to do with Elecraft radios? You guys are WAY out of line. > >W0EB > > From eric at elecraft.com Thu Sep 24 13:47:38 2020 From: eric at elecraft.com (Eric Swartz) Date: Thu, 24 Sep 2020 10:47:38 -0700 Subject: [Elecraft] Off topic and subject change [was: Status of Add-ons for K3?] In-Reply-To: References: Message-ID: <4B774F23-3387-46A5-9CD5-D463A48EBEE2@elecraft.com> [End of Thread] due to way OFF topic drift. 73, Eric List moderator, among other daily mayhem.. elecraft.com _..._ > On Sep 24, 2020, at 9:50 AM, Alan - G4GNX wrote: > > ?It really would help if folks were not too lazy to change the subject line to reflect the actual content. Then we could all decide for ourselves whether to bother to start reading it. > From n6kr at elecraft.com Thu Sep 24 13:49:07 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 24 Sep 2020 10:49:07 -0700 Subject: [Elecraft] "Introduction to the Elecraft K4" manual now available Message-ID: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> The first draft of "Introduction to the Elecraft K4" is now available, at: https://ftp.elecraft.com/K4/Manuals%20Downloads/Introduction%20to%20the%20Elecraft%20K4,%20rev.%20A-7.pdf This is a 40-page, full-color manual with dozens of illustrations highlighting the K4's user interface and features. The document's 8.5 x 14" form factor is uniquely suited to the K4, allowing illustrations to be virtually the same size as the front panel. A printed, spiral-bound copy of this manual will be included with the K4. I'd like to thank those who volunteered to review this and other K4 documentation, including our intrepid field testers. Additional input is always welcome. We'll be updating these documents as K4 software evolves. 73, Wayne N6KR From tom at w7sua.org Thu Sep 24 14:43:00 2020 From: tom at w7sua.org (Tom Azlin W7SUA) Date: Thu, 24 Sep 2020 11:43:00 -0700 Subject: [Elecraft] "Introduction to the Elecraft K4" manual now available In-Reply-To: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> References: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> Message-ID: <2cece99f-5918-1a4c-288f-18132f39861a@w7sua.org> Very nice intro, thanks! de tom w7sua On 9/24/2020 10:49 AM, Wayne Burdick wrote: > The first draft of "Introduction to the Elecraft K4" is now available, at: > > https://ftp.elecraft.com/K4/Manuals%20Downloads/Introduction%20to%20the%20Elecraft%20K4,%20rev.%20A-7.pdf > > This is a 40-page, full-color manual with dozens of illustrations highlighting the K4's user interface and features. The document's 8.5 x 14" form factor is uniquely suited to the K4, allowing illustrations to be virtually the same size as the front panel. A printed, spiral-bound copy of this manual will be included with the K4. > > I'd like to thank those who volunteered to review this and other K4 documentation, including our intrepid field testers. Additional input is always welcome. We'll be updating these documents as K4 software evolves. > > 73, > Wayne > N6KR From brianpepperdine at sympatico.ca Thu Sep 24 14:51:03 2020 From: brianpepperdine at sympatico.ca (Brian) Date: Thu, 24 Sep 2020 18:51:03 +0000 Subject: [Elecraft] K4 IF signal 'OUT' for external application useage In-Reply-To: References: , Message-ID: Looking at the recent (though long from complete) K4 guide, I don't see an IF OUT per se as I have in the accessory board in my K3 (or in fact the output I/Q from the KX3 I can run directly into my sound card on the computer). Does the XVTR IF OUT suffice for this? The reason I ask is that eventually my LP-PAN is going to die - hopefully not soon but I have been using it for quite some time now. I use the IF out from the K3 into the LP-PAN and then into NaP3. Now I do realize there is a panadapter on the K4 - obviously - but I DO enjoy (in fact pretty much need) the large computer display for the pana/spectrum display and DO use the NaP3 software controls for K3 functions on my keyboard and mouse for tuning and such. The display on the K4 is not the same thing I don't think. Even with some keyboard/mouse controls native to the K4 (?) the display size is a deterent to me as it exists. Apologies to the company. I assume maybe there MIGHT be a video card OUT re. the K4 panadapter at some time, but that is a maybe.. and more money. I won't be nearly the first to get a K4.. down the line probably as I have a K3S here and a K3 at the in-law's property. If I did get that 'last final rig' and it was a K4 (Iikely as I don't have much in the shack since 2000 that was not Elecraft) I would, as an older fellow then.. want the larger visual display of the computer/IF out/NaP3 sort of solution. So, do I get some IF out I can use? tnx Brian VE3VAW From radiok4ia at gmail.com Thu Sep 24 14:52:27 2020 From: radiok4ia at gmail.com (Buck) Date: Thu, 24 Sep 2020 14:52:27 -0400 Subject: [Elecraft] "Introduction to the Elecraft K4" manual now available In-Reply-To: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> References: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> Message-ID: First glance, it is really well done. I love the yellow arrows and hate it when a manual says push the X button but you have no idea where the X button is. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 9/24/2020 1:49 PM, Wayne Burdick wrote: > The first draft of "Introduction to the Elecraft K4" is now available, at: > > https://ftp.elecraft.com/K4/Manuals%20Downloads/Introduction%20to%20the%20Elecraft%20K4,%20rev.%20A-7.pdf > > This is a 40-page, full-color manual with dozens of illustrations highlighting the K4's user interface and features. The document's 8.5 x 14" form factor is uniquely suited to the K4, allowing illustrations to be virtually the same size as the front panel. A printed, spiral-bound copy of this manual will be included with the K4. > > I'd like to thank those who volunteered to review this and other K4 documentation, including our intrepid field testers. Additional input is always welcome. We'll be updating these documents as K4 software evolves. > > 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 radiok4ia at gmail.com > From radiok4ia at gmail.com Thu Sep 24 14:58:18 2020 From: radiok4ia at gmail.com (Buck) Date: Thu, 24 Sep 2020 14:58:18 -0400 Subject: [Elecraft] K4 IF signal 'OUT' for external application useage In-Reply-To: References: Message-ID: <614dc66b-8f69-9caa-7c08-78ba982da6c2@Gmail.com> As I recall, there is an HDMI output on the back of the K4. You can choose to have it display the front panel, the panadapter or both on an external monitor. You won't need to use I/Q to an LP-PAN. Buck, k4ia Honor Roll 8BDXCC EasyWayHamBooks.com On 9/24/2020 2:51 PM, Brian wrote: > > Looking at the recent (though long from complete) K4 guide, I don't see an IF OUT per se as I have in the accessory board in my K3 (or in fact the output I/Q from the KX3 I can run directly into my sound card on the computer). Does the XVTR IF OUT suffice for this? > > The reason I ask is that eventually my LP-PAN is going to die - hopefully not soon but I have been using it for quite some time now. I use the IF out from the K3 into the LP-PAN and then into NaP3. > > Now I do realize there is a panadapter on the K4 - obviously - but I DO enjoy (in fact pretty much need) the large computer display for the pana/spectrum display and DO use the NaP3 software controls for K3 functions on my keyboard and mouse for tuning and such. > The display on the K4 is not the same thing I don't think. Even with some keyboard/mouse controls native to the K4 (?) the display size is a deterent to me as it exists. Apologies to the company. I assume maybe there MIGHT be a video card OUT re. the K4 panadapter at some time, but that is a maybe.. and more money. > > I won't be nearly the first to get a K4.. down the line probably as I have a K3S here and a K3 at the in-law's property. If I did get that 'last final rig' and it was a K4 (Iikely as I don't have much in the shack since 2000 that was not Elecraft) I would, as an older fellow then.. want the larger visual display of the computer/IF out/NaP3 sort of solution. > > So, do I get some IF out I can use? > tnx > Brian VE3VAW > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 ab7echo at gmail.com Thu Sep 24 15:05:37 2020 From: ab7echo at gmail.com (David Gilbert) Date: Thu, 24 Sep 2020 12:05:37 -0700 Subject: [Elecraft] Status of Add-ons for K3? In-Reply-To: <970e9653-99c6-89d3-c9ea-b166e7ee979c@horizon.co.fk> References: <970e9653-99c6-89d3-c9ea-b166e7ee979c@horizon.co.fk> Message-ID: <7d3b61ea-f36f-16cc-c48e-5a9cab97d1b5@gmail.com> Since the off topic posts seem to mostly come from the same culprits, sorting by sender might be a good alternative. Dave?? AB7E On 9/24/2020 9:12 AM, Mike Harris via Elecraft wrote: > Hi, > > And a perfect example of why email sorting on subject doesn't work. > > Regards, > > Mike VP8NO > > On 24/09/2020 12:43, KENT TRIMBLE wrote: > >> What all this has to do with Elecraft is beyond me.? Good thing the >> K4 is keeping Eric occupied. >> >> 73, >> >> Kent? K9ZTV > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ab7echo at gmail.com From ab7echo at gmail.com Thu Sep 24 15:10:57 2020 From: ab7echo at gmail.com (David Gilbert) Date: Thu, 24 Sep 2020 12:10:57 -0700 Subject: [Elecraft] K4 IF signal 'OUT' for external application useage In-Reply-To: <614dc66b-8f69-9caa-7c08-78ba982da6c2@Gmail.com> References: <614dc66b-8f69-9caa-7c08-78ba982da6c2@Gmail.com> Message-ID: <037f3ecf-ccb5-43c1-5118-5390e933b093@gmail.com> Except that an I/Q output would also enable the convenient use of other 3rd party software.? If Elecraft didn't bother to include it in the K4, I think that's a mistake. Dave?? AB7E On 9/24/2020 11:58 AM, Buck wrote: > As I recall, there is an HDMI output on the back of the K4.? You can > choose to have it display the front panel, the panadapter or both on > an external monitor. > > You won't need to use I/Q to an LP-PAN. > > Buck, k4ia > Honor Roll > 8BDXCC > EasyWayHamBooks.com > > On 9/24/2020 2:51 PM, Brian wrote: >> >> Looking at the recent (though long from complete) K4 guide, I don't >> see an IF OUT per se as I have in the accessory board in my K3 (or in >> fact the output I/Q? from the KX3 I can run directly into my sound >> card on the computer).?? Does the XVTR IF OUT suffice for this? >> >> The reason I ask is that eventually my LP-PAN is going to die - >> hopefully not soon but I have been using it for quite some time now. >> I use the IF? out from the K3 into the LP-PAN and then into NaP3. >> >> Now I do realize there is a panadapter on the K4 - obviously - but I >> DO enjoy (in fact pretty much need) the large computer display for >> the pana/spectrum display and DO use the NaP3 software controls for >> K3 functions on my keyboard and mouse for tuning and such. >> The display on the K4 is not the same thing I don't think. Even with >> some keyboard/mouse controls native to the K4 (?) the display size is >> a deterent to me as it exists.? Apologies to the company. I assume >> maybe there MIGHT be a video card OUT re. the K4 panadapter at some >> time, but that is a maybe.. and more money. >> >> I won't be nearly the first to get a K4.. down the line probably as I >> have a K3S here and a K3 at the in-law's property. If I did get that >> 'last final rig' and it was? a K4 (Iikely as I don't have much in the >> shack since 2000 that was not Elecraft) I would, as an older fellow >> then.. want the larger visual display of the computer/IF out/NaP3 >> sort of solution. >> >> So, do I get some IF out I can use? >> tnx >> Brian VE3VAW From n6kr at elecraft.com Thu Sep 24 15:30:21 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Thu, 24 Sep 2020 12:30:21 -0700 Subject: [Elecraft] K4 IF signal 'OUT' for external application useage In-Reply-To: <037f3ecf-ccb5-43c1-5118-5390e933b093@gmail.com> References: <037f3ecf-ccb5-43c1-5118-5390e933b093@gmail.com> Message-ID: <74039E94-753F-4985-AB0C-FA972BDD7748@elecraft.com> IQ streaming data from the K4 will be available over Ethernet. Wayne N6KR ---- elecraft.com > On Sep 24, 2020, at 12:14 PM, David Gilbert wrote: > > ? > Except that an I/Q output would also enable the convenient use of other 3rd party software. If Elecraft didn't bother to include it in the K4, I think that's a mistake. > > Dave AB7E > > > >> On 9/24/2020 11:58 AM, Buck wrote: >> As I recall, there is an HDMI output on the back of the K4. You can choose to have it display the front panel, the panadapter or both on an external monitor. >> >> You won't need to use I/Q to an LP-PAN. >> >> Buck, k4ia >> Honor Roll >> 8BDXCC >> EasyWayHamBooks.com > >> >>> On 9/24/2020 2:51 PM, Brian wrote: >>> >>> Looking at the recent (though long from complete) K4 guide, I don't see an IF OUT per se as I have in the accessory board in my K3 (or in fact the output I/Q from the KX3 I can run directly into my sound card on the computer). Does the XVTR IF OUT suffice for this? >>> >>> The reason I ask is that eventually my LP-PAN is going to die - hopefully not soon but I have been using it for quite some time now. I use the IF out from the K3 into the LP-PAN and then into NaP3. >>> >>> Now I do realize there is a panadapter on the K4 - obviously - but I DO enjoy (in fact pretty much need) the large computer display for the pana/spectrum display and DO use the NaP3 software controls for K3 functions on my keyboard and mouse for tuning and such. >>> The display on the K4 is not the same thing I don't think. Even with some keyboard/mouse controls native to the K4 (?) the display size is a deterent to me as it exists. Apologies to the company. I assume maybe there MIGHT be a video card OUT re. the K4 panadapter at some time, but that is a maybe.. and more money. >>> >>> I won't be nearly the first to get a K4.. down the line probably as I have a K3S here and a K3 at the in-law's property. If I did get that 'last final rig' and it was a K4 (Iikely as I don't have much in the shack since 2000 that was not Elecraft) I would, as an older fellow then.. want the larger visual display of the computer/IF out/NaP3 sort of solution. >>> >>> So, do I get some IF out I can use? >>> tnx >>> Brian VE3VAW > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 starman10 at hotmail.com Thu Sep 24 16:16:19 2020 From: starman10 at hotmail.com (Lou W0FK) Date: Thu, 24 Sep 2020 13:16:19 -0700 (MST) Subject: [Elecraft] "Introduction to the Elecraft K4" manual now available In-Reply-To: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> References: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> Message-ID: <1600978579381-0.post@n2.nabble.com> My computer monitor has finger smudges on it now.... Lou, W0FK -- Sent from: http://elecraft.365791.n2.nabble.com/ From jim at jtmiller.com Thu Sep 24 16:33:43 2020 From: jim at jtmiller.com (Jim Miller) Date: Thu, 24 Sep 2020 16:33:43 -0400 Subject: [Elecraft] Y Cable Message-ID: Can't find the Y cable any longer on the Elecraft web site. Where is it hiding? Jim ab3cv From kl7uw at acsalaska.net Thu Sep 24 16:39:17 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Thu, 24 Sep 2020 12:39:17 -0800 Subject: [Elecraft] Elecraft] "Introduction to the Elecraft K4" manual now available Message-ID: <202009242039.08OKdIiW015623@mail40c28.carrierzone.com> Impressive. I can see a lot of work went into this (I was a former tech writer for Hughes Aircraft 1968-71). If I could afford it, I would be on board to order the K4D when the VHF/UHF modules are available. My K3/10 (SN-4340) does well for me, though. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From jim.gmforum at gmail.com Thu Sep 24 16:45:39 2020 From: jim.gmforum at gmail.com (Jim Borowski) Date: Thu, 24 Sep 2020 15:45:39 -0500 Subject: [Elecraft] Did any one receive their K4 yet, other than testers? Message-ID: <5f6d0574.1c69fb81.9bdec.55c1@mx.google.com> Still wishing and hoping.?Jim K9TFSent from my T-Mobile 4G LTE Device From k6xk at ncn.net Thu Sep 24 17:15:32 2020 From: k6xk at ncn.net (Roy) Date: Thu, 24 Sep 2020 16:15:32 -0500 Subject: [Elecraft] "Introduction to the Elecraft K4" manual now available In-Reply-To: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> References: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> Message-ID: Excellent! I'm looking forward to generating many new synapses! Roy,?? K6XK From k4ie_tom at yahoo.com Thu Sep 24 17:26:52 2020 From: k4ie_tom at yahoo.com (Tom Fitzpatrick) Date: Thu, 24 Sep 2020 21:26:52 +0000 (UTC) Subject: [Elecraft] KAT3A References: <1347489797.415027.1600982812786.ref@mail.yahoo.com> Message-ID: <1347489797.415027.1600982812786@mail.yahoo.com> ????? Can anyone tell me the secret to pulling the KAT3A tuner card out of a K3? I changed it out once for the newest version but forgot how I did it. Part of th chassis frame stops the board from being pulled out. Tom, K4IE From ghyoungman at gmail.com Thu Sep 24 17:35:08 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Thu, 24 Sep 2020 17:35:08 -0400 Subject: [Elecraft] KAT3A In-Reply-To: <1347489797.415027.1600982812786@mail.yahoo.com> References: <1347489797.415027.1600982812786.ref@mail.yahoo.com> <1347489797.415027.1600982812786@mail.yahoo.com> Message-ID: Have you looked at the manual? You can follow the installation instructions in reverse ?. might give you a hint. > On Sep 24, 2020, at 5:26 PM, Tom Fitzpatrick via Elecraft wrote: > > Can anyone tell me the secret to pulling the KAT3A tuner card out of a K3? I changed it out once for the newest version but forgot how I did it. Part of th chassis frame stops the board from being pulled out. > > Tom, K4IE > ______________________________________________________________ From g4gnx at g4gnx.com Thu Sep 24 17:43:21 2020 From: g4gnx at g4gnx.com (Alan - G4GNX) Date: Thu, 24 Sep 2020 21:43:21 +0000 Subject: [Elecraft] KAT3A In-Reply-To: References: <1347489797.415027.1600982812786.ref@mail.yahoo.com> <1347489797.415027.1600982812786@mail.yahoo.com> Message-ID: ISTR you remove the center strengthening bar (plain aluminum) and it will probably help to remove the side panel. Then it's a matter of gentle 'wiggling'. 73, Alan. G4GNX ------ Original Message ------ From: "Grant Youngman" To: "Tom Fitzpatrick" Cc: "Elecraft Refl" Sent: 24/09/2020 22:35:08 Subject: Re: [Elecraft] KAT3A >Have you looked at the manual? You can follow the installation instructions in reverse ?. might give you a hint. > >> On Sep 24, 2020, at 5:26 PM, Tom Fitzpatrick via Elecraft wrote: >> >> Can anyone tell me the secret to pulling the KAT3A tuner card out of a K3? I changed it out once for the newest version but forgot how I did it. Part of th chassis frame stops the board from being pulled out. >> >> Tom, K4IE >> From ab7echo at gmail.com Thu Sep 24 18:07:26 2020 From: ab7echo at gmail.com (David Gilbert) Date: Thu, 24 Sep 2020 15:07:26 -0700 Subject: [Elecraft] K4 IF signal 'OUT' for external application useage In-Reply-To: <74039E94-753F-4985-AB0C-FA972BDD7748@elecraft.com> References: <037f3ecf-ccb5-43c1-5118-5390e933b093@gmail.com> <74039E94-753F-4985-AB0C-FA972BDD7748@elecraft.com> Message-ID: VERY cool ... Thanks es 73, Dave?? AB7E On 9/24/2020 12:30 PM, Wayne Burdick wrote: > IQ streaming data from the K4 will be available over Ethernet. > > Wayne > N6KR > > > ---- > elecraft.com > >> On Sep 24, 2020, at 12:14 PM, David Gilbert wrote: >> >> ? >> Except that an I/Q output would also enable the convenient use of >> other 3rd party software.? If Elecraft didn't bother to include it in >> the K4, I think that's a mistake. >> >> Dave?? AB7E >> >> >> >> On 9/24/2020 11:58 AM, Buck wrote: >>> As I recall, there is an HDMI output on the back of the K4.? You can >>> choose to have it display the front panel, the panadapter or both on >>> an external monitor. >>> >>> You won't need to use I/Q to an LP-PAN. >>> >>> Buck, k4ia >>> Honor Roll >>> 8BDXCC >>> EasyWayHamBooks.com >> >>> >>> On 9/24/2020 2:51 PM, Brian wrote: >>>> >>>> Looking at the recent (though long from complete) K4 guide, I don't >>>> see an IF OUT per se as I have in the accessory board in my K3 (or >>>> in fact the output I/Q? from the KX3 I can run directly into my >>>> sound card on the computer). Does the XVTR IF OUT suffice for this? >>>> >>>> The reason I ask is that eventually my LP-PAN is going to die - >>>> hopefully not soon but I have been using it for quite some time >>>> now. I use the IF? out from the K3 into the LP-PAN and then into NaP3. >>>> >>>> Now I do realize there is a panadapter on the K4 - obviously - but >>>> I DO enjoy (in fact pretty much need) the large computer display >>>> for the pana/spectrum display and DO use the NaP3 software controls >>>> for K3 functions on my keyboard and mouse for tuning and such. >>>> The display on the K4 is not the same thing I don't think. Even >>>> with some keyboard/mouse controls native to the K4 (?) the display >>>> size is a deterent to me as it exists. Apologies to the company. I >>>> assume maybe there MIGHT be a video card OUT re. the K4 panadapter >>>> at some time, but that is a maybe.. and more money. >>>> >>>> I won't be nearly the first to get a K4.. down the line probably as >>>> I have a K3S here and a K3 at the in-law's property. If I did get >>>> that 'last final rig' and it was? a K4 (Iikely as I don't have much >>>> in the shack since 2000 that was not Elecraft) I would, as an older >>>> fellow then.. want the larger visual display of the computer/IF >>>> out/NaP3 sort of solution. >>>> >>>> So, do I get some IF out I can use? >>>> tnx >>>> Brian VE3VAW >> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.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 pvandyke1953 at gmail.com Thu Sep 24 18:16:07 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Thu, 24 Sep 2020 18:16:07 -0400 Subject: [Elecraft] Did any one receive their K4 yet, other than testers? In-Reply-To: <5f6d0574.1c69fb81.9bdec.55c1@mx.google.com> References: <5f6d0574.1c69fb81.9bdec.55c1@mx.google.com> Message-ID: I want to hazard a guess in saying that if they're just getting the manuals out, then NO. But I would hazard an opinion that they are very close.. Paul KB9AVO On Thu, Sep 24, 2020, 4:47 PM Jim Borowski wrote: > > Still wishing and hoping. Jim K9TFSent from my T-Mobile 4G LTE Device > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pvandyke1953 at gmail.com From dhaines at bates.edu Thu Sep 24 19:21:49 2020 From: dhaines at bates.edu (David Haines) Date: Thu, 24 Sep 2020 19:21:49 -0400 Subject: [Elecraft] Something to discuss other than K4 In-Reply-To: <2cece99f-5918-1a4c-288f-18132f39861a@w7sua.org> References: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> <2cece99f-5918-1a4c-288f-18132f39861a@w7sua.org> Message-ID: <7af93d22-717e-9121-c226-f2a5caaf6554@bates.edu> Like most of you, I can't wait to get my hands on a K4, but it will be the kit form, which will be awhile. Meanwhile I want to toss out something about RFI, which of course can be an issue for a really sensitive transciever like the K4. One of my engineer sons sent me the following link about Furniture ESD.? Is it for real?? Is this something else we have to worry about while using our new K4's? http://www.emcesd.com/pdf/eos93.pdf 73, david KC1DNY Still very happy with my KX3, but dreaming ... . From ch at murgatroid.com Thu Sep 24 20:25:13 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Thu, 24 Sep 2020 17:25:13 -0700 Subject: [Elecraft] Does the K4 support IPv6? Message-ID: Does the K4 support IPv6? 73 de AI6KG From rwnewbould at comcast.net Thu Sep 24 22:25:44 2020 From: rwnewbould at comcast.net (Rich) Date: Thu, 24 Sep 2020 22:25:44 -0400 Subject: [Elecraft] KIO3B and LIne In Question? Message-ID: <90e36efb-b519-5f7e-a3e9-5ae61596c4bf@comcast.net> Fred's book states that if you have a jack plug into the LINE IN then the USB audio is disconnected.? At least I think that is what he means. I receive audio via the USB just fine with a plug in the LINE IN jack What am I missing? Rich K3RWN From n6zw at comcast.net Thu Sep 24 22:51:46 2020 From: n6zw at comcast.net (MIKE ZANE) Date: Thu, 24 Sep 2020 19:51:46 -0700 (PDT) Subject: [Elecraft] KX3 and Chinese MX-P50M 45w amp Message-ID: <1362799198.72961.1601002307057@connect.xfinity.com> Need a little help. I just bought a KX3 and have it working OK. I also have a 45w amp that I would like to work with the kx3. However, with no info on the keying line coming from the amp, I have no idea if its Ok to use. I see in the Elecraft manual that the "keyline" and tip would be used to connect to key the amp. I can't which of the sections on a TRRS jack to use. Ring 2 or ring 3? Also don't know how much current is on that amp key line. Measured 15V DC when it is on and off measured 400 ohms, if that is any help. Any one got any ideas on this? Thanks, Mike From k2asp at kanafi.org Thu Sep 24 23:00:06 2020 From: k2asp at kanafi.org (Phil Kane) Date: Thu, 24 Sep 2020 20:00:06 -0700 Subject: [Elecraft] Something to discuss other than K4 In-Reply-To: <7af93d22-717e-9121-c226-f2a5caaf6554@bates.edu> References: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> <2cece99f-5918-1a4c-288f-18132f39861a@w7sua.org> <7af93d22-717e-9121-c226-f2a5caaf6554@bates.edu> Message-ID: On 9/24/2020 4:21 PM, David Haines wrote: > One of my engineer sons sent me the following link about Furniture ESD.? > Is it for real?? Is this something else we have to worry about while > using our new K4's? The document said in part "The only clue to the problem was that the malfunction seemed to be related to a person rising from a chair...." Tell me something that I don't know. In the 1950s (when I was first licensed) my parents' dinette set was of the then-popular chrome-and-vinyl construction, and every time I got up from the chair I would get zapped in the back of my knees. Static electricity generated by cloth sliding on the plastic. I cured the problem by touching a table fork or spoon to the metal chair rung to discharge the spark. I was under the impression that this was cured by switching to an anti-static type of plastic or fabric some time ago. It's "great" that all that time and brain power was spent on rediscovering the wheel. Are chrome-and-vinyl dinette sets still being sold? 73 de K2ASP - Phil Kane Elecraft K2/100 s/n 5402 >From a Clearing in the Silicon Forest Beaverton (Washington County) Oregon From 73.de.ne1ee at gmail.com Fri Sep 25 08:31:42 2020 From: 73.de.ne1ee at gmail.com (Rich NE1EE) Date: Fri, 25 Sep 2020 08:31:42 -0400 Subject: [Elecraft] Something to discuss other than K4 In-Reply-To: <7af93d22-717e-9121-c226-f2a5caaf6554@bates.edu> References: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> <2cece99f-5918-1a4c-288f-18132f39861a@w7sua.org> <7af93d22-717e-9121-c226-f2a5caaf6554@bates.edu> Message-ID: <5f6de342.1c69fb81.35444.b005@mx.google.com> On 2020-09-24 19:21:-0400, David Haines wrote: >http://www.emcesd.com/pdf/eos93.pdf > >73, >david KC1DNY The article is dated 1993. From dobox at suddenlink.net Fri Sep 25 09:47:08 2020 From: dobox at suddenlink.net (David Box) Date: Fri, 25 Sep 2020 07:47:08 -0600 Subject: [Elecraft] [Elecraft-K4] K4 Spot and Auto Spot switch/button In-Reply-To: References: Message-ID: From pincon at erols.com Fri Sep 25 09:12:10 2020 From: pincon at erols.com (Charlie T) Date: Fri, 25 Sep 2020 09:12:10 -0400 Subject: [Elecraft] Something to discuss other than K4 In-Reply-To: <5f6de342.1c69fb81.35444.b005@mx.google.com> References: <17266367-DA76-47A6-A65B-7CF835666C4F@elecraft.com> <2cece99f-5918-1a4c-288f-18132f39861a@w7sua.org> <7af93d22-717e-9121-c226-f2a5caaf6554@bates.edu> <5f6de342.1c69fb81.35444.b005@mx.google.com> Message-ID: <002901d6933d$7ebad570$7c308050$@erols.com> If you try to keep the humidity in your house above about 40%, it MAY help for those shocks you get when you shuffle across the room and turn on an a light switch or something grounded. You might notice that you don't get those shocks in the summer, since the ambient humidity is usually much higher than in winter, unless of course, you live in a super low humidity area of the world. Here in Virginia, we run the de-humidifiers in the summer and humidifiers in the winter to try to control the relative humidity in the house. The normal air conditioning helps a lot in the summer, but it still gets humid in the basement for example. You also have to be careful of too high humidity to prevent mold from forming. 73, Charlie k3ICH -----Original Message----- From: elecraft-bounces at mailman.qth.net On Behalf Of Rich NE1EE Sent: Friday, September 25, 2020 8:32 AM To: elecraft at mailman.qth.net Subject: Re: [Elecraft] Something to discuss other than K4 On 2020-09-24 19:21:-0400, David Haines wrote: >http://www.emcesd.com/pdf/eos93.pdf > >73, >david KC1DNY The article is dated 1993. From msadams60 at gmail.com Fri Sep 25 13:21:00 2020 From: msadams60 at gmail.com (k2qo) Date: Fri, 25 Sep 2020 10:21:00 -0700 (MST) Subject: [Elecraft] XV222 RX is Dead, Need Advice In-Reply-To: <45C5CC10-63BE-4A48-8F84-FE75B9D1B26E@gmail.com> References: <1600390672882-0.post@n2.nabble.com> <4cabd350-ba14-ea83-dfad-d172a79a2cea@embarqmail.com> <45C5CC10-63BE-4A48-8F84-FE75B9D1B26E@gmail.com> Message-ID: <1601054460037-0.post@n2.nabble.com> Don and gang, I replaced Q3, U1 and the ADEX mixer. Results? Transmit works FB as before and the RX still has no sensitivity. No change at all. I ran through the setup related to the RX section and one thing stands out. Part VIII: RX Input Alignment Trimmer cap C1 has no effect on the AC voltage at the phone output connector. This is the same result I had before replacing the 3 parts. I think I may be down to signal tracing starting at the N connector. But without a list of test points and voltages, this may be a nonproductive PITA. The next step is to sell this unit for parts or buy a working used XV222 so I can backward engineer a solution. 73, Mark K2QO -- Sent from: http://elecraft.365791.n2.nabble.com/ From lists at subich.com Fri Sep 25 14:12:09 2020 From: lists at subich.com (Joe Subich, W4TV) Date: Fri, 25 Sep 2020 14:12:09 -0400 Subject: [Elecraft] KIO3B and LIne In Question? In-Reply-To: <90e36efb-b519-5f7e-a3e9-5ae61596c4bf@comcast.net> References: <90e36efb-b519-5f7e-a3e9-5ae61596c4bf@comcast.net> Message-ID: <1a063b5f-b2de-5eb1-02b3-4b403981742b@subich.com> > I receive audio via the USB just fine with a plug in the LINE IN jack > > What am I missing? Line In is *transmit* audio. Connecting to Line IN will prevent you from *transmitting* from "Speaker (USB Audio CODEC)". 73, ... Joe, W4TV On 2020-09-24 10:25 PM, Rich wrote: > Fred's book states that if you have a jack plug into the LINE IN then > the USB audio is disconnected.? At least I think that is what he means. > > I receive audio via the USB just fine with a plug in the LINE IN jack > > What am I missing? > > Rich > > K3RWN > From donwilh at embarqmail.com Fri Sep 25 14:18:33 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 25 Sep 2020 14:18:33 -0400 Subject: [Elecraft] Wayback machine K2 SSB filter roll-off mod question In-Reply-To: <430204CB-E4D6-45F4-81A4-070A57415107@me.com> References: <430204CB-E4D6-45F4-81A4-070A57415107@me.com> Message-ID: <80a9da17-2a74-0074-e62a-c3c1f275bc1a@embarqmail.com> Doug, This is one of the problems with using info from the wayback machine. That was one initial 'cure' that worked only marginally. Elecraft released a mod kit that works well. Put the parts from the kit in, and yes, C180 is to be removed in the process. Go back to setting L34 for best S/N ratio as instructed in the K2 manual (even the old ones). 73, Don W3FPR On 9/21/2020 10:40 AM, Douglas Hagerman via Elecraft wrote: > I am trying to install the mod described in "Application Note Eliminating the Frequency Roll-off of the K2 SSB Filter.? Instructions are from March 2001, kit is new. Radio serial number 875 with SSB and 160 meters and antenna tuner and digital I/O options. > > The capacitor that is to be removed as part of the mod, C180, was already removed when I got the radio. Solder indicates it was in there originally. But the additional parts (transistor, caps, resistor) of the modification are not installed. I don?t see anything unusual on the SSB board, and I don?t see anything that looks like an FCO in other places on the RF board. > > The application note says that one way (less desirable) to accomplish the filter change is to just screw out L34 a long way, but it doesn?t say anything about taking out C180. > > I?m wondering if there was another version of the mod, maybe that came out before the 2001 version of the upgrade kit, where you took out C180 and then adjusted inductor L34. It does appear to be screwed pretty far out. > From donwilh at embarqmail.com Fri Sep 25 14:42:51 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Fri, 25 Sep 2020 14:42:51 -0400 Subject: [Elecraft] XV222 RX is Dead, Need Advice In-Reply-To: <1601054460037-0.post@n2.nabble.com> References: <1600390672882-0.post@n2.nabble.com> <4cabd350-ba14-ea83-dfad-d172a79a2cea@embarqmail.com> <45C5CC10-63BE-4A48-8F84-FE75B9D1B26E@gmail.com> <1601054460037-0.post@n2.nabble.com> Message-ID: Mark, Sorry about your failed effort. There is little in the RX path other than Q3 and U1 that is not also used in TX. If you have equipment that can do signal tracing at 222MHz, just trace the signal path. There should be a significant increase in RF voltage at the output of Q3 and more at the output of U1. If not, check to be certain K1 has not been damaged. K1 should be available from Elecraft since it is used in the XV144 which is still in production. 73, Don W3FPR On 9/25/2020 1:21 PM, k2qo wrote: > Don and gang, > > I replaced Q3, U1 and the ADEX mixer. Results? Transmit works FB as before > and the RX still has no sensitivity. No change at all. I ran through the > setup related to the RX section and one thing stands out. > > Part VIII: RX Input Alignment > Trimmer cap C1 has no effect on the AC voltage at the phone output > connector. This is the same result I had before replacing the 3 parts. > > I think I may be down to signal tracing starting at the N connector. But > without a list of test points and voltages, this may be a nonproductive > PITA. > From steve at ecsykes.com Fri Sep 25 18:25:14 2020 From: steve at ecsykes.com (Steve Sykes) Date: Fri, 25 Sep 2020 18:25:14 -0400 Subject: [Elecraft] K3S K3/0 RRC-1258 Mk2 configuration. Message-ID: <40323D2E-7B5D-4DBB-8E4A-C0E2E099786D@ecsykes.com> Does anyone have a link or step by step document to configure a remote setup? 73 Steve KD2OM Sent from my ec iPhone. From QRP5W at roadrunner.com Fri Sep 25 20:35:20 2020 From: QRP5W at roadrunner.com (QRP5W at roadrunner.com) Date: Sat, 26 Sep 2020 00:35:20 +0000 Subject: [Elecraft] XV222 RX is Dead, Need Advice Message-ID: Mark, Do you have a schematic for the XV222? I looked on their site and could not come up with one. 72 Howard Kraus, K2UD -----------------------------------------From: "Don Wilhelm" To: "k2qo" Cc: Sent: Friday September 25 2020 2:44:03PM Subject: Re: [Elecraft] XV222 RX is Dead, Need Advice Mark, Sorry about your failed effort. There is little in the RX path other than Q3 and U1 that is not also used in TX. If you have equipment that can do signal tracing at 222MHz, just trace the signal path. There should be a significant increase in RF voltage at the output of Q3 and more at the output of U1. If not, check to be certain K1 has not been damaged. K1 should be available from Elecraft since it is used in the XV144 which is still in production. 73, Don W3FPR On 9/25/2020 1:21 PM, k2qo wrote: > Don and gang, > > I replaced Q3, U1 and the ADEX mixer. Results? Transmit works FB as before > and the RX still has no sensitivity. No change at all. I ran through the > setup related to the RX section and one thing stands out. > > Part VIII: RX Input Alignment > Trimmer cap C1 has no effect on the AC voltage at the phone output > connector. This is the same result I had before replacing the 3 parts. > > I think I may be down to signal tracing starting at the N connector. But > without a list of test points and voltages, this may be a nonproductive > PITA. > ______________________________________________________________ Elecraft mailing list Home: Message delivered to qrp5w at roadrunner.com Links: ------ [1] http://mailman.qth.net/mmfaq.htm http://mailman.qth.net/mmfaq.htm /> Post: mailto:Elecraft at mailman.qth.net This list hosted by: I?ve read the manual, tried at least 10 memory sticks (a very BAD location for the USB, some don?t fit because of VGA cable. What is the secret? Ben W4SC Sent from Mail for Windows 10 From jbammi at mac.com Fri Sep 25 21:51:48 2020 From: jbammi at mac.com (Jwahar Bammi) Date: Fri, 25 Sep 2020 21:51:48 -0400 Subject: [Elecraft] KX3 and Chinese MX-P50M 45w amp Message-ID: <011201d693a7$995563e0$cc002ba0$@mac.com> Mike, I have a MX-P50M and when Keyed from the Keyline on ACC2 (on the Ring and Sleeve of ACC2) works. The spec on the Keyline is 30V, 100 mA max, open drain. If hooked up the two work fine, with the KX3 set to 5Watts. However, I did blow the 2n7002 transistor that drains the Keyline at ACC2, which I cannot attribute to the P50M. It was a PITA to replace, the replacement of the MOSFET itself is easy, but peeling off all the stuff to get to the underside of the KX3 RF board and putting all the layers back together is a b*t**. I now have a keying buffer that you can buy from RadioDan on eBay. The Kx3 plugs into the buffer, and the other end of the buffer plugs into to the PX3. If you need more details, please just ask. 73 de k1jbd Bammi > Need a little help. I just bought a KX3 and have it working OK. I also have a 45w amp that I would like to work with the kx3. However, with no info on the keying line coming from the amp, I have no idea if its Ok to use. I see in the Elecraft manual that the "keyline" and tip would be used to connect to key the amp. I can't which of the sections on a TRRS jack to use. Ring 2 or ring 3? Also don't know how much current is on that amp key line. Measured 15V DC when it is on and off measured 400 ohms, if that is any help. Any one got any ideas on this? Thanks, Mike From kl7uw at acsalaska.net Sat Sep 26 00:40:20 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Fri, 25 Sep 2020 20:40:20 -0800 Subject: [Elecraft] K4 IF signal 'OUT' for external application useage Message-ID: <202009260440.08Q4eLFx005473@mail46c28.carrierzone.com> OK, so the only thing I do with ethernet is connect to the Internet via a router. So would the K4 ethernet connect via the router using a local network to communicate with my computer? I have that option to network my printer between multiple computers. One related question will the ethernet permit separate IQ from main and sub Rx (diversity mode with separate antennas)? I do that with my K3 by using both 1st IF's to two LP-Pan which create IQ baseband to a four-port soundcard. I have both LP-Pan phase-locked to a single LO to preserve diversity reception. The computer runs MAP65 which takes two receiver IQ inputs. http://www.kl7uw.com/MAP65.htm Just curious at this point. 73, Ed - KL7UW Date: Thu, 24 Sep 2020 12:30:21 -0700 From: Wayne Burdick To: David Gilbert Cc: elecraft at mailman.qth.net Subject: Re: [Elecraft] K4 IF signal 'OUT' for external application useage Message-ID: <74039E94-753F-4985-AB0C-FA972BDD7748 at elecraft.com> Content-Type: text/plain; charset=utf-8 IQ streaming data from the K4 will be available over Ethernet. Wayne N6KR 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From k2vco.vic at gmail.com Sat Sep 26 01:11:59 2020 From: k2vco.vic at gmail.com (Vic Rosenthal) Date: Sat, 26 Sep 2020 08:11:59 +0300 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: References: Message-ID: I?d like to know too. I?ve never been able to get it to work. Sometimes it starts saving snd hangs up; sometimes it doesn?t start. Victor 4X6GP > On 26 Sep 2020, at 3:42, w4sc wrote: > > ?I?ve read the manual, tried at least 10 memory sticks (a very BAD location for the USB, some don?t fit because of VGA cable. > > What is the secret? > > Ben W4SC > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to k2vco.vic at gmail.com From n6tv at arrl.net Sat Sep 26 03:16:18 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Sat, 26 Sep 2020 00:16:18 -0700 Subject: [Elecraft] KX3 and Chinese MX-P50M 45w amp In-Reply-To: <1362799198.72961.1601002307057@connect.xfinity.com> References: <1362799198.72961.1601002307057@connect.xfinity.com> Message-ID: On Thu, Sep 24, 2020 at 7:52 PM MIKE ZANE wrote: > Need a little help. I just bought a KX3 and have it working OK. I also > have a 45w amp that I would like to work with the kx3. However, with no > info on the keying line coming from the amp, I have no idea if its Ok to > use. See https://www.hfunderground.com/board/index.php?topic=29686.0 > I see in the Elecraft manual that the "keyline" and tip would be used to > connect to key the amp. On the KX3, the ACC2 connector (a 2.5 mm stereo or "TRS" jack), TIP is PTT IN (for a footswitch or computer-generated PTT if you set *ACC2: IO* to *LO=PTT*), and ring is KEYLINE OUT (for an amplifier). So RING of ACC2 is the one to connect to key the amplifier relay with a KX3. I can't tell which of the sections on a TRRS jack to use. Ring 2 or ring 3? The only TRRS jack on the KX3 is the MIC jack. Ring 2 is Logic Ground and Ring 1 is PTT IN (push-to-talk switch) or UP/DOWN. Do not connect the mic. jack to the amp. Also don't know how much current is on that amp key line. Measured 15V DC > when it is on and off measured 400 ohms, if that is any help. Just put your meter into "AMPS" or "MilliaAmps" on the highest scale, and measure the current across the KEY IN or "RELAY" jack of the amp with the meter while it is powered ON. The amp. should go into TX mode when the meter shorts that terminal to ground. Chances it's well within the limits of the KX3 KEY OUT line (30V, 100ma max). BTW, the S-BOX or S-BOX-USB makes a nice "docking station" / computer interface for a KX2 or KX3, if you need one. Rig control plus computer-generated CW and PTT over a single USB cable can be provided, along with all the required interface cables. https://www.kkn.net/~n6tv/S-BOX/Features.html#KeyingExampleKX3 73, Bob, N6TV https://bit.ly/S-BOX From vk1zzgary at gmail.com Sat Sep 26 06:19:09 2020 From: vk1zzgary at gmail.com (Gary Gregory) Date: Sat, 26 Sep 2020 20:19:09 +1000 Subject: [Elecraft] K3 speakers 2 setting Message-ID: <-whaizmafcc5vqoyh88-89qlmd-72jy30jdo158vck3kz-mhuqwrbn2w2p-v50sfs343zx5psw57v-w4s18cv5sxvbxku5vx6e5vsivi91z6-ucwbz58wuqsy-vh88wv-csth42-fqrvuh-svyz4pkgdds6.1601115549849@email.android.com> From donwilh at embarqmail.com Sat Sep 26 11:41:38 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 26 Sep 2020 11:41:38 -0400 Subject: [Elecraft] XV222 RX is Dead, Need Advice In-Reply-To: References: Message-ID: Yes, I have one - BUT Elecraft has the schematics for all the transverters.? Go to the manuals page and open the Retired Products page. Then select the XV Transverter Owner's manual and download it. You will find in Appendix A the schematics for the XV50, XV144 and XV222. If you have a printed copy of the Owner's manual for those transverters, you will find the schematics for all of them in Appendix A. The XV432 is a separate Owner's Manual.? It has a different board layout - the boards for the XV50, XV144 and XV222 are the same layout but the components are different.? See the board layout for each of them. 73, Don W3FPR On 9/25/2020 8:35 PM, QRP5W at roadrunner.com wrote: > Mark, > > Do you have a schematic for the XV222?? I looked on their site and > could not come up with one. > > 72 > > Howard Kraus, K2UD > > ----------------------------------------- > > From: "Don Wilhelm" > To: "k2qo" > Cc: > Sent: Friday September 25 2020 2:44:03PM > Subject: Re: [Elecraft] XV222 RX is Dead, Need Advice > > Mark, > > Sorry about your failed effort. There is little in the RX path other > than Q3 and U1 that is not also used in TX. > > If you have equipment that can do signal tracing at 222MHz, just trace > the signal path. There should be a significant increase in RF voltage > at the output of Q3 and more at the output of U1. If not, check to be > certain K1 has not been damaged. K1 should be available from Elecraft > since it is used in the XV144 which is still in production. > > 73, > Don W3FPR > > On 9/25/2020 1:21 PM, k2qo wrote: > > Don and gang, > > > > I replaced Q3, U1 and the ADEX mixer. Results? Transmit works FB as > before > > and the RX still has no sensitivity. No change at all. I ran through the > > setup related to the RX section and one thing stands out. > > > > Part VIII: RX Input Alignment > > Trimmer cap C1 has no effect on the AC voltage at the phone output > > connector. This is the same result I had before replacing the 3 parts. > > > > I think I may be down to signal tracing starting at the N connector. But > > without a list of test points and voltages, this may be a nonproductive > > PITA. > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft/> Help: > http://mailman.qth.net/mmfaq.htm/> > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: > http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html/> > Message delivered to qrp5w at roadrunner.com > From jackbrindle at me.com Sat Sep 26 12:33:50 2020 From: jackbrindle at me.com (Jack Brindle) Date: Sat, 26 Sep 2020 09:33:50 -0700 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: References: Message-ID: What product is this for? 73, Jack, W6FB > On Sep 25, 2020, at 5:42 PM, w4sc wrote: > > I?ve read the manual, tried at least 10 memory sticks (a very BAD location for the USB, some don?t fit because of VGA cable. > > What is the secret? > > Ben W4SC > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to jackbrindle at me.com From n6zw at comcast.net Sat Sep 26 13:27:35 2020 From: n6zw at comcast.net (MIKE ZANE) Date: Sat, 26 Sep 2020 10:27:35 -0700 (PDT) Subject: [Elecraft] KX3 & 45w amp Message-ID: <1892863798.7393.1601141256129@connect.xfinity.com> A really big thanks to all who responded with very helpful info. It was greatly appreciated!! Take care all and stay sage, 73, Mike From steve at ecsykes.com Sat Sep 26 14:56:20 2020 From: steve at ecsykes.com (Steve Sykes) Date: Sat, 26 Sep 2020 18:56:20 +0000 Subject: [Elecraft] K3S K3/0 RRC-1258 Mk2 configuration. In-Reply-To: References: <40323D2E-7B5D-4DBB-8E4A-C0E2E099786D@ecsykes.com> Message-ID: <8b806055-8240-d4b0-e2a2-de61fe9ddac5@ecsykes.com> I finally managed to get it partially running with the help of a couple people. One final question, shouldn't I have speaker audio from the K3/0 mini, or must I have an external speaker attached. Steve KD2OM On 9/25/20 10:32 PM, David Lee / Seatools wrote: > https://elecraft.com/pages/k3-0-mini-and-remote-system-manuals > > http://www.remoterig.com/wp/?page_id=97 > > Dave > W6ZL / 3D2KM > > > On Fri, Sep 25, 2020 at 3:27 PM Steve Sykes > wrote: > > Does anyone have a link or step by step? document to configure a > remote setup? > > 73 > > Steve KD2OM > > > > Sent from my ec iPhone. > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to seatools.w6zl at gmail.com > > From k2vco.vic at gmail.com Sat Sep 26 15:00:11 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Sat, 26 Sep 2020 22:00:11 +0300 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: References: Message-ID: <3999d38e-b929-c394-aee2-2e035d4e039d@gmail.com> I believe he's talking about the P3 with SVGA option. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 26/09/2020 19:33, Jack Brindle via Elecraft wrote: > What product is this for? > > 73, Jack, W6FB > >> On Sep 25, 2020, at 5:42 PM, w4sc wrote: >> >> I?ve read the manual, tried at least 10 memory sticks (a very BAD >> location for the USB, some don?t fit because of VGA cable. >> >> What is the secret? >> >> Ben W4SC >> >> Sent from Mail for Windows 10 >> From w4sc at windstream.net Sat Sep 26 15:24:53 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 26 Sep 2020 15:24:53 -0400 Subject: [Elecraft] SVGA Screen save to memory stick Message-ID: <4C.82.11685.4859F6F5@smtp01.aqua.bos.sync.lan> Hello Jack, Vic, P3 / SVGA. I have tried at least 10 different USB memory sticks, sizes 64 MB (yes Mega, probably a USB 1.x?), 128MB, 4GB, ?. through 64GB, all USB 2.0.? I have tried formatting NTFS, FAT32, and ExFAT.? On a couple of the sticks I get a ?Cannot Initialize Device? error.? With most sticks nothing happens, no error.? Initiating a ?Save?, ?nothing happens.?? All sticks work in Windows 10 machine with no problem.? I can see a RED LED on SVGA module flashing continuously. I have reloaded all of the f/w today with no change. The f/w loaded is the current available, and I have the latest utility.? The external display is 1920 x 1080 which I changed to last month. Any help appreciated. Ben W4SC Sent from Mail for Windows 10 From k2vco.vic at gmail.com Sat Sep 26 15:28:10 2020 From: k2vco.vic at gmail.com (Victor Rosenthal 4X6GP) Date: Sat, 26 Sep 2020 22:28:10 +0300 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <4C.82.11685.4859F6F5@smtp01.aqua.bos.sync.lan> References: <4C.82.11685.4859F6F5@smtp01.aqua.bos.sync.lan> Message-ID: <2eb2f47f-ed63-2aa7-ae31-74ba683899c8@gmail.com> Pretty much my experience, except that I have had some cases in which the transfer starts but then hangs up. 73, Victor, 4X6GP Rehovot, Israel Formerly K2VCO CWops no. 5 http://www.qsl.net/k2vco/ . On 26/09/2020 22:24, w4sc wrote: > Hello Jack, Vic, > > P3 / SVGA. > > I have tried at least 10 different USB memory sticks, sizes 64 MB > (yes Mega, probably a USB 1.x?), 128MB, 4GB, ?. through 64GB, all USB > 2.0. I have tried formatting NTFS, FAT32, and ExFAT. On a couple of > the sticks I get a ?Cannot Initialize Device? error. With most > sticks nothing happens, no error. Initiating a ?Save?, nothing > happens. All sticks work in Windows 10 machine with no problem. I > can see a RED LED on SVGA module flashing continuously. > > I have reloaded all of the f/w today with no change. > > The f/w loaded is the current available, and I have the latest > utility. The external display is 1920 x 1080 which I changed to last > month. > > Any help appreciated. > > Ben W4SC From mike.flowers at gmail.com Sat Sep 26 19:21:53 2020 From: mike.flowers at gmail.com (Mike Flowers) Date: Sat, 26 Sep 2020 16:21:53 -0700 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <4C.82.11685.4859F6F5@smtp01.aqua.bos.sync.lan> References: <4C.82.11685.4859F6F5@smtp01.aqua.bos.sync.lan> Message-ID: <02b301d6945b$d250e520$76f2af60$@gmail.com> I have successfully captured a P3 screen image. Elecraft P3 Utility > Capture Image Tab> Capture Image button - this captures the image then displays 'Bitmap copied to Windows Clipboard' - then paste from the Clipboard into Paint or other app and save in the image format of your choice. My P3 manual states: "Connector openings {16}, {17}, {21}, and {22} are provided for future use." I think #22 is the USB port on the back of the P3. - 73 and good DX de Mike, K6MKF, NCDXC Secretary > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On Behalf Of w4sc > Sent: Saturday, September 26, 2020 12:25 > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] SVGA Screen save to memory stick > > Hello Jack, Vic, > > P3 / SVGA. > > I have tried at least 10 different USB memory sticks, sizes 64 MB (yes Mega, > probably a USB 1.x?), 128MB, 4GB, ?. through 64GB, all USB 2.0. I have tried > formatting NTFS, FAT32, and ExFAT. On a couple of the sticks I get a ?Cannot > Initialize Device? error. With most sticks nothing happens, no error. Initiating a > ?Save?, nothing happens. All sticks work in Windows 10 machine with no > problem. I can see a RED LED on SVGA module flashing continuously. > > I have reloaded all of the f/w today with no change. > > The f/w loaded is the current available, and I have the latest utility. The external > display is 1920 x 1080 which I changed to last month. > > Any help appreciated. > > Ben W4SC > > > Sent from Mail for Windows 10 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to mike.flowers at gmail.com From donwilh at embarqmail.com Sat Sep 26 21:06:42 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sat, 26 Sep 2020 21:06:42 -0400 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <02b301d6945b$d250e520$76f2af60$@gmail.com> References: <4C.82.11685.4859F6F5@smtp01.aqua.bos.sync.lan> <02b301d6945b$d250e520$76f2af60$@gmail.com> Message-ID: <2c0e9b9e-8eeb-273a-63bf-32402a1e01a9@embarqmail.com> Mike, Connector #22 is a USB port for a keyboard, not a general USB port. It is clearly labeled "KEYBOARD". 73, Don W3FPR On 9/26/2020 7:21 PM, Mike Flowers wrote: > I have successfully captured a P3 screen image. > > Elecraft P3 Utility > Capture Image Tab> Capture Image button - this captures the image then displays 'Bitmap copied to Windows Clipboard' - then paste from the Clipboard into Paint or other app and save in the image format of your choice. > > My P3 manual states: "Connector openings {16}, {17}, {21}, and {22} are provided for future use." I think #22 is the USB port on the back of the P3. > From bbaines at mac.com Sat Sep 26 21:52:13 2020 From: bbaines at mac.com (Barry Baines) Date: Sat, 26 Sep 2020 21:52:13 -0400 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <2c0e9b9e-8eeb-273a-63bf-32402a1e01a9@embarqmail.com> References: <4C.82.11685.4859F6F5@smtp01.aqua.bos.sync.lan> <02b301d6945b$d250e520$76f2af60$@gmail.com> <2c0e9b9e-8eeb-273a-63bf-32402a1e01a9@embarqmail.com> Message-ID: <340B97B5-D318-4C9C-8D4D-E37164D9E258@mac.com> Don: > On Sep 26, 2020, at 9:06 PM, Don Wilhelm wrote: > > Mike, > > Connector #22 is a USB port for a keyboard, not a general USB port. It is clearly labeled "KEYBOARD". You're absolutely correct to note the labeling and I?ve always presumed that is the connector is only for a keyboard. However, the "P3 HIgh-Performance Owner?s Manual" (Revision F, 11 JAN 16 p.12) does have this description of that connector: "KEYBOARD: USB jack for a USB keyboard or thumb drive (mass storage device). Apple keyboards are not supported at this time.? So the wording does suggest compatibility with thumb drives, but from what I can tell there is no discussion in the ?Owner?s Manual" about how to utilize a thumb drive. Perhaps this may be a feature that was never actually developed. FWIW, Barry Baines, WD4ASW/1 (Currently in Boston/Roslindale, MA) > > 73, > Don W3FPR > > On 9/26/2020 7:21 PM, Mike Flowers wrote: >> I have successfully captured a P3 screen image. >> Elecraft P3 Utility > Capture Image Tab> Capture Image button - this captures the image then displays 'Bitmap copied to Windows Clipboard' - then paste from the Clipboard into Paint or other app and save in the image format of your choice. >> My P3 manual states: "Connector openings {16}, {17}, {21}, and {22} are provided for future use." I think #22 is the USB port on the back of the P3. > From mike.flowers at gmail.com Sat Sep 26 22:00:16 2020 From: mike.flowers at gmail.com (Mike Flowers) Date: Sat, 26 Sep 2020 19:00:16 -0700 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <2c0e9b9e-8eeb-273a-63bf-32402a1e01a9@embarqmail.com> References: <2c0e9b9e-8eeb-273a-63bf-32402a1e01a9@embarqmail.com> Message-ID: Hi Don, Yes, subsequently I saw the illustration with that port labeled ?keyboard?. I was looking at the P3 manual, and not the SVGA option manual. The P3 Utility is the only way I?ve found that will do a screen capture - but always willing to learn something new. -- 73 de Mike Flowers, K6MKF, NCDXC - "It's about DX!" > On Sep 26, 2020, at 6:06 PM, Don Wilhelm wrote: > > ?Mike, > > Connector #22 is a USB port for a keyboard, not a general USB port. It is clearly labeled "KEYBOARD". > > 73, > Don W3FPR > >> On 9/26/2020 7:21 PM, Mike Flowers wrote: >> I have successfully captured a P3 screen image. >> Elecraft P3 Utility > Capture Image Tab> Capture Image button - this captures the image then displays 'Bitmap copied to Windows Clipboard' - then paste from the Clipboard into Paint or other app and save in the image format of your choice. >> My P3 manual states: "Connector openings {16}, {17}, {21}, and {22} are provided for future use." I think #22 is the USB port on the back of the P3. From w4sc at windstream.net Sat Sep 26 22:08:00 2020 From: w4sc at windstream.net (w4sc) Date: Sat, 26 Sep 2020 22:08:00 -0400 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <340B97B5-D318-4C9C-8D4D-E37164D9E258@mac.com> References: <4C.82.11685.4859F6F5@smtp01.aqua.bos.sync.lan> <02b301d6945b$d250e520$76f2af60$@gmail.com> <2c0e9b9e-8eeb-273a-63bf-32402a1e01a9@embarqmail.com> <340B97B5-D318-4C9C-8D4D-E37164D9E258@mac.com> Message-ID: <05.D5.02449.FF3FF6F5@smtp04.aqua.bos.sync.lan> All, There is a selection (SVGA Ubmp) in the SVGA menus that will, according to the P3 manual, save a bmp file to a memory stick. Ref pp 43, 33 in the P3 Owners Manual Rev H1. Ben W4SC Sent from Mail for Windows 10 From: Barry Baines Sent: Saturday, September 26, 2020 21:52 To: Don Wilhelm Cc: Mike Flowers; w4sc; elecraft at mailman.qth.net Subject: Re: [Elecraft] SVGA Screen save to memory stick Don: On Sep 26, 2020, at 9:06 PM, Don Wilhelm wrote: Mike, Connector #22 is a USB port for a keyboard, not a general USB port. ?It is clearly labeled "KEYBOARD". You're absolutely correct to note the labeling and I?ve always presumed that is the connector is only for a keyboard. ? However, the "P3 HIgh-Performance Owner?s Manual" (Revision F, 11 JAN 16 p.12) does have this description of that connector: "KEYBOARD: USB jack for a USB keyboard or thumb drive (mass storage device). Apple keyboards are not supported at this time.? So the wording does suggest?compatibility with thumb drives, but from what I can tell there is no discussion in the??Owner?s Manual" about how to utilize a thumb drive. ?Perhaps this may be a feature that was never actually developed. FWIW, Barry Baines, WD4ASW/1 (Currently in Boston/Roslindale, MA) 73, Don W3FPR On 9/26/2020 7:21 PM, Mike Flowers wrote: I have successfully captured a P3 screen image. Elecraft P3 Utility > Capture Image Tab> Capture Image button - this captures the image then displays 'Bitmap copied to Windows Clipboard' - then paste from the Clipboard into Paint or other app and save in the image format of your choice. My P3 manual states: ?"Connector openings {16}, {17}, {21}, and {22} are provided for future use." ??I think #22 is the USB port on the back of the P3. From frantz at pwpconsult.com Sat Sep 26 22:52:57 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sat, 26 Sep 2020 22:52:57 -0400 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <340B97B5-D318-4C9C-8D4D-E37164D9E258@mac.com> Message-ID: USB hubs were also not supported. Since all Apple keyboards have a builtin hub, to ease connection of a mouse, the lack of hub support knocked them out too. 73 Bill AE6JV On 9/26/20 at 9:52 PM, elecraft at mailman.qth.net (Barry Baines via Elecraft) wrote: >However, the "P3 HIgh-Performance Owner?s Manual" (Revision >F, 11 JAN 16 p.12) does have this description of that connector: > >"KEYBOARD: USB jack for a USB keyboard or thumb drive (mass >storage device). Apple keyboards are not supported at this time.? ------------------------------------------------------------------------- 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 kevinr at coho.net Sat Sep 26 23:38:39 2020 From: kevinr at coho.net (kevinr) Date: Sat, 26 Sep 2020 20:38:39 -0700 Subject: [Elecraft] Elecraft CW Net Announcement Message-ID: <5a8313df-86fd-f2a6-7270-dfcdfb227506@coho.net> Good Evening, ?? I received over five inches of rain this week, the air is much fresher.? There is some solar activity: a sunspot, a G2 class storm, and higher flux readings.? It will be noisy but the signals may be stronger.? I expect QSB to be deep and rapid.? The nets will be entertaining. Please join us on (or near): 14050 kHz at 2200z Sunday (3 PM PDT Sunday) ?7047 kHz at 0045z Monday (5:45 PM PDT Sunday) ?? 73, ????? Kevin. KD5ONS _ "It was the best of times, it was the worst of times, it was the age of wisdom, it was the age of foolishness, it was the epoch of belief, it was the epoch of incredulity, it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair, we had everything before us, we had nothing before us, we were all going direct to Heaven, we were all going direct the other way ? in short, the period was so far like the present period, that some of its noisiest authorities insisted on its being received, for good or for evil, in the superlative degree of comparison only." From mike.flowers at gmail.com Sat Sep 26 23:59:03 2020 From: mike.flowers at gmail.com (Mike Flowers) Date: Sat, 26 Sep 2020 20:59:03 -0700 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: References: <340B97B5-D318-4C9C-8D4D-E37164D9E258@mac.com> Message-ID: <02dd01d69482$8a2ca7d0$9e85f770$@gmail.com> Seems to have been implemented in P3 firmware - see: https://ftp.elecraft.com/P3/firmware/p3fwnotes.rtf P3SVGA 01.16 / 02-26-2013 says: "Added display of an onscreen message when a USB device (keyboard or MSD) is attached and detached." I wonder if this message is appearing when a flash drive is inserted in the P3 USB port. - 73 and good DX de Mike, K6MKF, NCDXC Secretary > -----Original Message----- > From: elecraft-bounces at mailman.qth.net > On Behalf Of Bill Frantz > Sent: Saturday, September 26, 2020 19:53 > To: elecraft at mailman.qth.net > Subject: Re: [Elecraft] SVGA Screen save to memory stick > > USB hubs were also not supported. Since all Apple keyboards have a builtin hub, > to ease connection of a mouse, the lack of hub support knocked them out too. > > 73 Bill AE6JV > > On 9/26/20 at 9:52 PM, elecraft at mailman.qth.net (Barry Baines via Elecraft) > wrote: > > >However, the "P3 HIgh-Performance Owner?s Manual" (Revision F, 11 JAN > >16 p.12) does have this description of that connector: > > > >"KEYBOARD: USB jack for a USB keyboard or thumb drive (mass storage > >device). Apple keyboards are not supported at this time.? > > ------------------------------------------------------------------------- > 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 > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html Message > delivered to mike.flowers at gmail.com From mike.flowers at gmail.com Sun Sep 27 00:00:45 2020 From: mike.flowers at gmail.com (Mike Flowers) Date: Sat, 26 Sep 2020 21:00:45 -0700 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <02dd01d69482$8a2ca7d0$9e85f770$@gmail.com> References: <340B97B5-D318-4C9C-8D4D-E37164D9E258@mac.com> <02dd01d69482$8a2ca7d0$9e85f770$@gmail.com> Message-ID: <02de01d69482$c7257b30$55707190$@gmail.com> Although not the definitive resource, I am unable for find a YouTube video of a successful USB device P3 screen capture. - 73 and good DX de Mike, K6MKF, NCDXC Secretary > -----Original Message----- > From: Mike Flowers > Sent: Saturday, September 26, 2020 20:59 > To: 'Bill Frantz' ; elecraft at mailman.qth.net > Subject: RE: [Elecraft] SVGA Screen save to memory stick > > Seems to have been implemented in P3 firmware - see: > > https://ftp.elecraft.com/P3/firmware/p3fwnotes.rtf > > P3SVGA 01.16 / 02-26-2013 says: > > "Added display of an onscreen message when a USB device (keyboard or MSD) is > attached and detached." > > I wonder if this message is appearing when a flash drive is inserted in the P3 USB > port. > > - 73 and good DX de Mike, K6MKF, NCDXC Secretary > > > -----Original Message----- > > From: elecraft-bounces at mailman.qth.net > > > > On Behalf Of Bill Frantz > > Sent: Saturday, September 26, 2020 19:53 > > To: elecraft at mailman.qth.net > > Subject: Re: [Elecraft] SVGA Screen save to memory stick > > > > USB hubs were also not supported. Since all Apple keyboards have a > > builtin hub, to ease connection of a mouse, the lack of hub support knocked > them out too. > > > > 73 Bill AE6JV > > > > On 9/26/20 at 9:52 PM, elecraft at mailman.qth.net (Barry Baines via > > Elecraft) > > wrote: > > > > >However, the "P3 HIgh-Performance Owner?s Manual" (Revision F, 11 JAN > > >16 p.12) does have this description of that connector: > > > > > >"KEYBOARD: USB jack for a USB keyboard or thumb drive (mass storage > > >device). Apple keyboards are not supported at this time.? > > > > ------------------------------------------------------------------------- > > 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 > > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net Please help support this email > > list: http://www.qsl.net/donate.html Message delivered to > > mike.flowers at gmail.com From nr4c at widomaker.com Sun Sep 27 04:03:10 2020 From: nr4c at widomaker.com (Nr4c) Date: Sun, 27 Sep 2020 04:03:10 -0400 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <02de01d69482$c7257b30$55707190$@gmail.com> References: <02de01d69482$c7257b30$55707190$@gmail.com> Message-ID: <34707214-1208-44F5-999C-CE031DF335BE@widomaker.com> Use the P3 menu to set one of gibe sict buttons to this feature and when you wish to save a screen, just tap the button. Don?t have a P3 anymore but this worked for me. Utility save only saves to computer file. The button saves to USB stick. Sent from my iPhone ...nr4c. bill > On Sep 27, 2020, at 12:04 AM, Mike Flowers wrote: > > ?Although not the definitive resource, I am unable for find a YouTube video of a successful USB device P3 screen capture. > > - 73 and good DX de Mike, K6MKF, NCDXC Secretary > >> -----Original Message----- >> From: Mike Flowers >> Sent: Saturday, September 26, 2020 20:59 >> To: 'Bill Frantz' ; elecraft at mailman.qth.net >> Subject: RE: [Elecraft] SVGA Screen save to memory stick >> >> Seems to have been implemented in P3 firmware - see: >> >> https://ftp.elecraft.com/P3/firmware/p3fwnotes.rtf >> >> P3SVGA 01.16 / 02-26-2013 says: >> >> "Added display of an onscreen message when a USB device (keyboard or MSD) is >> attached and detached." >> >> I wonder if this message is appearing when a flash drive is inserted in the P3 USB >> port. >> >> - 73 and good DX de Mike, K6MKF, NCDXC Secretary >> >>> -----Original Message----- >>> From: elecraft-bounces at mailman.qth.net >>> >>> On Behalf Of Bill Frantz >>> Sent: Saturday, September 26, 2020 19:53 >>> To: elecraft at mailman.qth.net >>> Subject: Re: [Elecraft] SVGA Screen save to memory stick >>> >>> USB hubs were also not supported. Since all Apple keyboards have a >>> builtin hub, to ease connection of a mouse, the lack of hub support knocked >> them out too. >>> >>> 73 Bill AE6JV >>> >>> On 9/26/20 at 9:52 PM, elecraft at mailman.qth.net (Barry Baines via >>> Elecraft) >>> wrote: >>> >>>> However, the "P3 HIgh-Performance Owner?s Manual" (Revision F, 11 JAN >>>> 16 p.12) does have this description of that connector: >>>> >>>> "KEYBOARD: USB jack for a USB keyboard or thumb drive (mass storage >>>> device). Apple keyboards are not supported at this time.? >>> >>> ------------------------------------------------------------------------- >>> 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 >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this email >>> list: http://www.qsl.net/donate.html Message delivered to >>> mike.flowers at gmail.com > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From KY5G at montac.com Sun Sep 27 05:24:37 2020 From: KY5G at montac.com (Clay Autery) Date: Sun, 27 Sep 2020 04:24:37 -0500 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <02de01d69482$c7257b30$55707190$@gmail.com> References: <340B97B5-D318-4C9C-8D4D-E37164D9E258@mac.com> <02dd01d69482$8a2ca7d0$9e85f770$@gmail.com> <02de01d69482$c7257b30$55707190$@gmail.com> Message-ID: I've done it on my P3 w/ SVGA kit installed.... many times.? I have a screensaver set and I take captures of RFI. Haven't done it in a while, so forgive me if I don't write a tutorial. But it most definitely works if you have SVGA installed and updated firmware. ______________________ Clay Autery, KY5G (318) 518-1389 On 09/26/20 23:00, Mike Flowers wrote: > Although not the definitive resource, I am unable for find a YouTube video of a successful USB device P3 screen capture. > > - 73 and good DX de Mike, K6MKF, NCDXC Secretary > >> -----Original Message----- >> From: Mike Flowers >> Sent: Saturday, September 26, 2020 20:59 >> To: 'Bill Frantz' ; elecraft at mailman.qth.net >> Subject: RE: [Elecraft] SVGA Screen save to memory stick >> >> Seems to have been implemented in P3 firmware - see: >> >> https://ftp.elecraft.com/P3/firmware/p3fwnotes.rtf >> >> P3SVGA 01.16 / 02-26-2013 says: >> >> "Added display of an onscreen message when a USB device (keyboard or MSD) is >> attached and detached." >> >> I wonder if this message is appearing when a flash drive is inserted in the P3 USB >> port. >> >> - 73 and good DX de Mike, K6MKF, NCDXC Secretary >> >>> -----Original Message----- >>> From: elecraft-bounces at mailman.qth.net >>> >>> On Behalf Of Bill Frantz >>> Sent: Saturday, September 26, 2020 19:53 >>> To: elecraft at mailman.qth.net >>> Subject: Re: [Elecraft] SVGA Screen save to memory stick >>> >>> USB hubs were also not supported. Since all Apple keyboards have a >>> builtin hub, to ease connection of a mouse, the lack of hub support knocked >> them out too. >>> 73 Bill AE6JV >>> >>> On 9/26/20 at 9:52 PM, elecraft at mailman.qth.net (Barry Baines via >>> Elecraft) >>> wrote: >>> >>>> However, the "P3 HIgh-Performance Owner?s Manual" (Revision F, 11 JAN >>>> 16 p.12) does have this description of that connector: >>>> >>>> "KEYBOARD: USB jack for a USB keyboard or thumb drive (mass storage >>>> device). Apple keyboards are not supported at this time.? >>> ------------------------------------------------------------------------- >>> 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 >>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net Please help support this email >>> list: http://www.qsl.net/donate.html Message delivered to >>> mike.flowers at gmail.com > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to ky5g at montac.com From KY5G at montac.com Sun Sep 27 05:25:11 2020 From: KY5G at montac.com (Clay Autery) Date: Sun, 27 Sep 2020 04:25:11 -0500 Subject: [Elecraft] SVGA Screen save to memory stick In-Reply-To: <34707214-1208-44F5-999C-CE031DF335BE@widomaker.com> References: <02de01d69482$c7257b30$55707190$@gmail.com> <34707214-1208-44F5-999C-CE031DF335BE@widomaker.com> Message-ID: <26a18d2a-0dcb-bd13-1267-078502491e40@montac.com> Excellent idea! ______________________ Clay Autery, KY5G (318) 518-1389 On 09/27/20 03:03, Nr4c wrote: > Use the P3 menu to set one of gibe sict buttons to this feature and when you wish to save a screen, just tap the button. > > Don?t have a P3 anymore but this worked for me. Utility save only saves to computer file. The button saves to USB stick. > > Sent from my iPhone > ...nr4c. bill From pokirley at gmail.com Sun Sep 27 09:55:57 2020 From: pokirley at gmail.com (Paul Kirley) Date: Sun, 27 Sep 2020 13:55:57 +0000 Subject: [Elecraft] [Elecraft} KAT3A Message-ID: Because the KAT3A was marketed both as a replacement for the KAT3 and as a component of new K3s rigs, its installation instructions show how to remove the previous antenna tuner card, if necessary. Please consult the first 10 pages of https://ftp.elecraft.com/K3S/Manuals%20Downloads/E740266%20KAT3A%20Option%20Installation%20Rev%20A1.pdf 73, Paul W8TM From w1ie at jetbroadband.com Sun Sep 27 16:42:54 2020 From: w1ie at jetbroadband.com (w1ie at jetbroadband.com) Date: Sun, 27 Sep 2020 16:42:54 -0400 Subject: [Elecraft] ERR KP1 Message-ID: <014901d6950e$c6cfb470$546f1d50$@jetbroadband.com> All, Encountered this error (ERR KP1) during the CQWW rtty contest. Could not find the error in the manual. Has anyone else ever run into this error and if so, do you remember what was the cause and the possible cure? Best regards, Jerry, W1IE From frantz at pwpconsult.com Sun Sep 27 18:09:12 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Sun, 27 Sep 2020 18:09:12 -0400 Subject: [Elecraft] [K3S] Loss of audio quality Message-ID: I am using a K3 that has been upgraded to include the KIO3B three board set with USB audio to the computer. For several years, it has been working well with my MacBook Pro. Recently, my decoding of FT8/FT4 signals has become much worse. I see a large number of signals on the wsjt-x waterfall, but get very few decodes. I don't think this is a time of day problem as when I do get decodes the displayed times are on the order of 0.1 or 0.2 seconds. (I have played a lot to be sure NTP is working correctly.) I have also adjusted the RF gain to between 30 and 70 on the wsjt-x signal level display. Changing between 30 and 70 doesn't change the number of decodes. I ran some experiments today to try to locate the problem. (1) Since there was a RTTY contest in progress, I compared the decodes I was getting on the computer with cocoaModem with the ones I was getting from the K3's internal decoder. The K3's were significantly better. (2) I played the FT8 subband through the radio's loud speaker and used the internal microphone on the computer to listen to the signals. I got a lot more decodes (and the times were consistant with a correct time setting on the computer). I am starting to conclude that there may be a problem with the USB audio. I will try to hook up the external sound card I use with my KX3 tonight and see if it works better than the KIO3B. Has anyone seen these symptoms? Do you have any fixes? 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 jd at ko8v.net Sun Sep 27 18:12:45 2020 From: jd at ko8v.net (Joe DeVincentis) Date: Sun, 27 Sep 2020 18:12:45 -0400 Subject: [Elecraft] ERR KP1 In-Reply-To: <014901d6950e$c6cfb470$546f1d50$@jetbroadband.com> References: <014901d6950e$c6cfb470$546f1d50$@jetbroadband.com> Message-ID: From what I recall it has to do with the K-pod. Google confirms that. http://elecraft.365791.n2.nabble.com/K3s-error-message-KP1-td7633496.html 73, Joe, KO8V > On Sep 27, 2020, at 16:44, w1ie at jetbroadband.com wrote: > > ?All, > > > > Encountered this error (ERR KP1) during the CQWW rtty contest. Could not > find the error in the manual. Has anyone else ever run into this error and > if so, do you remember what was the cause and the possible cure? > > > > Best regards, > > > > > > Jerry, W1IE > From aa4lr at arrl.net Sun Sep 27 18:17:25 2020 From: aa4lr at arrl.net (Bill Coleman) Date: Sun, 27 Sep 2020 18:17:25 -0400 Subject: [Elecraft] [K2] Intermittent INFO 080 problem. References: <157A1B56-1EEA-4A35-89A5-86298E56E1A9.ref@arrl.net> Message-ID: <157A1B56-1EEA-4A35-89A5-86298E56E1A9@arrl.net> Over the years, I?ve had a little bit of trouble with my K2 occasionally given INFO 080. The first time it happened, during a Field Day even, I attributed it to condensation building up on the inside overnight. Once it warmed up altering being turned on for a while, it was fine. I?ve used this rig at four different QTHs. When I have had it in an air-conditioned, controlled environment, it has not given me any problems. Currently, though, the shack where it is located is in a basement, and higher humidity can be a problem. Last night, this problem contributed to me missing 4U!UN on 80m CW. It took about 15 minutes for the rig to warm up. Any suggestions on how to diagnose the root cause of this problem? This is a K2/100, with the KNB2, KSB2, KDSP2 and KAT100. Bill Coleman, AA4LR, PP-ASEL Mail: aa4lr at arrl.net Web: http://boringhamradiopart.blogspot.com Quote: "Not within a thousand years will man ever fly!" -- Wilbur Wright, 1901 From jim at n7us.net Sun Sep 27 18:22:30 2020 From: jim at n7us.net (Jim McDonald) Date: Sun, 27 Sep 2020 22:22:30 +0000 Subject: [Elecraft] [P3] P3 CENTER frequency Message-ID: I think I recall seeing a solution to the P3's losing the center frequency using fixed tune mode when changing bands. It's very frustrating to have to recenter the display after coming back to a band, especially in a contest when it wastes time. Is there a fix? Jim N7US From gliderboy1955 at yahoo.com Sun Sep 27 19:04:29 2020 From: gliderboy1955 at yahoo.com (eric norris) Date: Sun, 27 Sep 2020 23:04:29 +0000 (UTC) Subject: [Elecraft] MH2, MH4 mic compatibility? References: <666318191.1386464.1601247869938.ref@mail.yahoo.com> Message-ID: <666318191.1386464.1601247869938@mail.yahoo.com> Will an MH2 mic work with a K3S, and will an MH4 mic work with a K2? Thanks, 73, Eric WD6DBM ? From donwilh at embarqmail.com Sun Sep 27 19:28:15 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 27 Sep 2020 19:28:15 -0400 Subject: [Elecraft] MH2, MH4 mic compatibility? In-Reply-To: <666318191.1386464.1601247869938@mail.yahoo.com> References: <666318191.1386464.1601247869938.ref@mail.yahoo.com> <666318191.1386464.1601247869938@mail.yahoo.com> Message-ID: <90ee7ed0-0929-836a-7dd0-1f828a4f40df@embarqmail.com> Eric, Yes to both. 73, Don W3FPR On 9/27/2020 7:04 PM, eric norris via Elecraft wrote: > Will an MH2 mic work with a K3S, and will an MH4 mic work with a K2? > Thanks, > > 73, Eric WD6DBM > > ? > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to donwilh at embarqmail.com > From donwilh at embarqmail.com Sun Sep 27 19:36:40 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Sun, 27 Sep 2020 19:36:40 -0400 Subject: [Elecraft] [K2] Intermittent INFO 080 problem. In-Reply-To: <157A1B56-1EEA-4A35-89A5-86298E56E1A9@arrl.net> References: <157A1B56-1EEA-4A35-89A5-86298E56E1A9.ref@arrl.net> <157A1B56-1EEA-4A35-89A5-86298E56E1A9@arrl.net> Message-ID: <3b23aa7b-ab48-f783-6dd8-10ccd14bf3d8@embarqmail.com> Bill, Unplug and replug all options in the K2 as a first try, also try removing the cable to the KAT100. If it is the KAT100, try shortening the cable between the KPA100 and the KAT100. INFO 080 means that one of the option's firmware is not communicating with the K2 MCU (or in the case of the KAT100, the AUXBUS path is too long meaning the communications is too slow). 73, Don W3FPR On 9/27/2020 6:17 PM, Bill Coleman wrote: > Over the years, I?ve had a little bit of trouble with my K2 occasionally given INFO 080. The first time it happened, during a Field Day even, I attributed it to condensation building up on the inside overnight. Once it warmed up altering being turned on for a while, it was fine. > > I?ve used this rig at four different QTHs. When I have had it in an air-conditioned, controlled environment, it has not given me any problems. > > Currently, though, the shack where it is located is in a basement, and higher humidity can be a problem. > > Last night, this problem contributed to me missing 4U!UN on 80m CW. It took about 15 minutes for the rig to warm up. > From johnae5x at gmail.com Sun Sep 27 19:40:19 2020 From: johnae5x at gmail.com (John Harper) Date: Sun, 27 Sep 2020 18:40:19 -0500 Subject: [Elecraft] Weekly Slow Speed CW event Message-ID: Late notice but I thought some here may be interested: http://www.k1usn.com/sst.html Starts at 0000Z tonight (US). John AE5X From cdistflatfoot at gmail.com Sun Sep 27 21:12:37 2020 From: cdistflatfoot at gmail.com (John Molenda) Date: Sun, 27 Sep 2020 21:12:37 -0400 Subject: [Elecraft] Weekly Slow Speed CW event In-Reply-To: References: Message-ID: Thank you for the notification reminder kb2huk On Sun, Sep 27, 2020, 7:42 PM John Harper wrote: > Late notice but I thought some here may be interested: > http://www.k1usn.com/sst.html > > Starts at 0000Z tonight (US). > > John AE5X > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to cdistflatfoot at gmail.com > From w4sc at windstream.net Sun Sep 27 21:23:41 2020 From: w4sc at windstream.net (w4sc) Date: Sun, 27 Sep 2020 21:23:41 -0400 Subject: [Elecraft] [P3] P3 CENTER frequency Message-ID: <8C.B2.11685.C1B317F5@smtp01.aqua.bos.sync.lan> >From Alan N1AL: The P3 does remember center frequency per band. However, if you tune the K3 VFO A to a frequency outside the old P3 display range, then the P3 center frequency is changed according to the rules specified by the "FixMode" menu setting. If you want the center frequency never to change no matter what frequency the K3 is set to, then set MENU:FixMode to "Static". Alan N1AL Sent from Mail for Windows 10 From jim at n7us.net Sun Sep 27 21:31:09 2020 From: jim at n7us.net (Jim McDonald) Date: Mon, 28 Sep 2020 01:31:09 +0000 Subject: [Elecraft] [P3] P3 CENTER frequency In-Reply-To: <8C.B2.11685.C1B317F5@smtp01.aqua.bos.sync.lan> References: <8C.B2.11685.C1B317F5@smtp01.aqua.bos.sync.lan> Message-ID: I like the operation of the ?Full Span? selection, but it seems after a band change the center frequency of a 20 kHz span has changed. Instead of having 14080 ? 14100, I?d see 14075 ? 14095. Jim N7US From: w4sc Sent: Sunday, September 27, 2020 20:24 To: Jim McDonald ; elecraft at mailman.qth.net Subject: [Elecraft] [P3] P3 CENTER frequency From Alan N1AL: The P3 does remember center frequency per band. However, if you tune the K3 VFO A to a frequency outside the old P3 display range, then the P3 center frequency is changed according to the rules specified by the "FixMode" menu setting. If you want the center frequency never to change no matter what frequency the K3 is set to, then set MENU:FixMode to "Static". Alan N1AL Sent from Mail for Windows 10 From kevinr at coho.net Sun Sep 27 23:52:01 2020 From: kevinr at coho.net (kevinr) Date: Sun, 27 Sep 2020 20:52:01 -0700 Subject: [Elecraft] Elecraft CW Net Report Message-ID: Good Evening, ?? Neither band was very noisy.? There were different types of QSB, sometimes simultaneously.? One of them was like the picket fencing you get on FM.? It made copy interesting.? Mild to warm fall weather was reported with a few antenna projects.? Smoke and then rain have prevented me from working on mine.? Now to get enough wood in for winter before the trails get too muddy. ? On 14050.5 kHz at 2200z: NO8V - John - MI K4TO - Dave - KY K4JPN - Steve - GA W8OV - Dave - TX ? On 7047.5 kHz at 0045z: W0CZ - Ken - ND K0DTJ - Brian - CA K4TO - Dave - KY W8OV - Dave - TX ?? The sun is setting much earlier these days.? It is time I moved the forty meter net a little earlier.? Or just start guarding the frequency sooner and see who can respond.? The cooler weather has helped the fire fighters contain more of each fire. The smoke levels in the Central Valley are dropping too.? It will take a stronger cold front to push the rain south of the Siskiyou Mountains. ?? Until next week 73, ????? Kevin.? KD5ONS - All in a hot and copper sky, The bloody Sun, at noon, Right up above the mast did stand, No bigger than the Moon. Day after day, day after day, We stuck, nor breath nor motion; As idle as a painted ship Upon a painted ocean. From jim at audiosystemsgroup.com Mon Sep 28 00:31:39 2020 From: jim at audiosystemsgroup.com (Jim Brown) Date: Sun, 27 Sep 2020 21:31:39 -0700 Subject: [Elecraft] [K3S] Loss of audio quality In-Reply-To: References: Message-ID: <64d1accd-fdf2-8438-8e32-1a6a148e1895@audiosystemsgroup.com> On 9/27/2020 3:09 PM, Bill Frantz wrote: > Has anyone seen these symptoms? Do you have any fixes? Bill, One thing I've seen with Windoze laptops is the OS switching the audio input to the decoder to the computer's built-in mic. You'll get decodes, but not nearly as many as usual. :) The quick test for it is to bang on the computer and see if you see audio level change. 73, Jim K9YC From ch at murgatroid.com Mon Sep 28 01:45:12 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Sun, 27 Sep 2020 22:45:12 -0700 Subject: [Elecraft] Does the K4 support IPv6? In-Reply-To: References: Message-ID: No answer? On Thu, Sep 24, 2020, 5:25 PM Christopher Hoover wrote: > > Does the K4 support IPv6? > > 73 de AI6KG > > From n6tv at arrl.net Mon Sep 28 02:41:08 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Sun, 27 Sep 2020 23:41:08 -0700 Subject: [Elecraft] Does the K4 support IPv6? In-Reply-To: References: Message-ID: I'm not sure what you mean by "support IPv6". >From a Windows command prompt, I tried a *ping -6* command with the radio's IPv6 address, to force IPv6 addressing, and it responded just fine. But it sure is easier to type the radios IPv4 address, which the rig displays in the menu. It doesn't display the K4's IPv6 address, but my Router interface displayed it. What application do you plan to use that requires IPv6? 73, Bob, N6TV On Sun, Sep 27, 2020 at 10:47 PM Christopher Hoover wrote: > No answer? > > On Thu, Sep 24, 2020, 5:25 PM Christopher Hoover > wrote: > > > > > Does the K4 support IPv6? > > > > 73 de AI6KG > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to n6tv at arrl.net > From rick.nk7i at gmail.com Mon Sep 28 02:45:47 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Sun, 27 Sep 2020 23:45:47 -0700 Subject: [Elecraft] Does the K4 support IPv6? In-Reply-To: References: Message-ID: Your router may supply it to your lan, but your provider may not utilize it yet. Rick NK7I On 9/27/2020 11:41 PM, Bob Wilson, N6TV wrote: > I'm not sure what you mean by "support IPv6". > > From a Windows command prompt, I tried a *ping -6* command with the radio's > IPv6 address, to force IPv6 addressing, and it responded just fine. > > But it sure is easier to type the radios IPv4 address, which the rig > displays in the menu. It doesn't display the K4's IPv6 address, but my > Router interface displayed it. > > What application do you plan to use that requires IPv6? > > 73, > Bob, N6TV > > > On Sun, Sep 27, 2020 at 10:47 PM Christopher Hoover > wrote: > >> No answer? >> >> On Thu, Sep 24, 2020, 5:25 PM Christopher Hoover >> wrote: >> >>> Does the K4 support IPv6? >>> >>> 73 de AI6KG >>> >>> >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6tv at arrl.net >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rick.nk7i at gmail.com From n6tv at arrl.net Mon Sep 28 02:54:53 2020 From: n6tv at arrl.net (Bob Wilson, N6TV) Date: Sun, 27 Sep 2020 23:54:53 -0700 Subject: [Elecraft] Does the K4 support IPv6? In-Reply-To: References: Message-ID: Using a web browser on Windows, on the same LAN / Router as the K4, if I go to https://whatismyipaddress.com/, it displays both an IPv4 and IPv6 address (for my Router), so I assume that means my provider supports both. 73, Bob, N6TV On Sun, Sep 27, 2020 at 11:47 PM Rick NK7I wrote: > Your router may supply it to your lan, but your provider may not utilize > it yet. > > Rick NK7I > > > On 9/27/2020 11:41 PM, Bob Wilson, N6TV wrote: > > I'm not sure what you mean by "support IPv6". > > > > From a Windows command prompt, I tried a *ping -6* command with the > radio's > > IPv6 address, to force IPv6 addressing, and it responded just fine. > > > > But it sure is easier to type the radios IPv4 address, which the rig > > displays in the menu. It doesn't display the K4's IPv6 address, but my > > Router interface displayed it. > > > > What application do you plan to use that requires IPv6? > > > > 73, > > Bob, N6TV > > > > > > On Sun, Sep 27, 2020 at 10:47 PM Christopher Hoover > > wrote: > > > >> No answer? > >> > >> On Thu, Sep 24, 2020, 5:25 PM Christopher Hoover > >> wrote: > >> > >>> Does the K4 support IPv6? > >>> > >>> 73 de AI6KG > >>> > >>> > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to n6tv at arrl.net > >> > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to 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 n6tv at arrl.net > From rick.nk7i at gmail.com Mon Sep 28 03:20:29 2020 From: rick.nk7i at gmail.com (Rick NK7I) Date: Mon, 28 Sep 2020 00:20:29 -0700 Subject: [Elecraft] Does the K4 support IPv6? In-Reply-To: References: Message-ID: <5DE2B489-E149-4D8B-B9D9-74EFE989CD4E@gmail.com> Using that same page, it shows m provider (barely) provides IPv4 with no IPv6. My mantra is still ?I didn?t move here for the Internet?. ;-) Rick NK7I Sent from my iPad > On Sep 27, 2020, at 11:54 PM, Bob Wilson, N6TV wrote: > > Using a web browser on Windows, on the same LAN / Router as the K4, if I go > to https://whatismyipaddress.com/, it displays both an IPv4 and IPv6 > address (for my Router), so I assume that means my provider supports both. > > 73, > Bob, N6TV > > >> On Sun, Sep 27, 2020 at 11:47 PM Rick NK7I wrote: >> >> Your router may supply it to your lan, but your provider may not utilize >> it yet. >> >> Rick NK7I >> >> >>> On 9/27/2020 11:41 PM, Bob Wilson, N6TV wrote: >>> I'm not sure what you mean by "support IPv6". >>> >>> From a Windows command prompt, I tried a *ping -6* command with the >> radio's >>> IPv6 address, to force IPv6 addressing, and it responded just fine. >>> >>> But it sure is easier to type the radios IPv4 address, which the rig >>> displays in the menu. It doesn't display the K4's IPv6 address, but my >>> Router interface displayed it. >>> >>> What application do you plan to use that requires IPv6? >>> >>> 73, >>> Bob, N6TV >>> >>> >>> On Sun, Sep 27, 2020 at 10:47 PM Christopher Hoover >>> wrote: >>> >>>> No answer? >>>> >>>> On Thu, Sep 24, 2020, 5:25 PM Christopher Hoover >>>> wrote: >>>> >>>>> Does the K4 support IPv6? >>>>> >>>>> 73 de AI6KG >>>>> >>>>> >>>> ______________________________________________________________ >>>> Elecraft mailing list >>>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>>> Help: http://mailman.qth.net/mmfaq.htm >>>> Post: mailto:Elecraft at mailman.qth.net >>>> >>>> This list hosted by: http://www.qsl.net >>>> Please help support this email list: http://www.qsl.net/donate.html >>>> Message delivered to n6tv at arrl.net >>>> >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:Elecraft at mailman.qth.net >>> >>> This list hosted by: http://www.qsl.net >>> Please help support this email list: http://www.qsl.net/donate.html >>> Message delivered to 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 n6tv at arrl.net >> > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to rick.nk7i at gmail.com From fsindeaux at yahoo.com Mon Sep 28 10:09:47 2020 From: fsindeaux at yahoo.com (Fernando Sindeaux) Date: Mon, 28 Sep 2020 11:09:47 -0300 Subject: [Elecraft] MH2, MH4 mic compatibility? In-Reply-To: <90ee7ed0-0929-836a-7dd0-1f828a4f40df@embarqmail.com> References: <90ee7ed0-0929-836a-7dd0-1f828a4f40df@embarqmail.com> Message-ID: Dear Friends, Which one of those mics is the best in audio quality? Best regards to all, Fernando Sent from my iPhone > On Sep 27, 2020, at 8:31 PM, Don Wilhelm wrote: > > ?Eric, > > Yes to both. > > 73, > Don W3FPR > >> On 9/27/2020 7:04 PM, eric norris via Elecraft wrote: >> Will an MH2 mic work with a K3S, and will an MH4 mic work with a K2? >> Thanks, >> 73, Eric WD6DBM >> ? >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to donwilh at embarqmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to fsindeaux at yahoo.com From gliderboy1955 at yahoo.com Mon Sep 28 10:12:58 2020 From: gliderboy1955 at yahoo.com (eric norris) Date: Mon, 28 Sep 2020 14:12:58 +0000 (UTC) Subject: [Elecraft] MH2, MH4 mic compatibility? In-Reply-To: References: <90ee7ed0-0929-836a-7dd0-1f828a4f40df@embarqmail.com> Message-ID: <1803636239.1559278.1601302378813@mail.yahoo.com> Don says they are functionaly identical. 73, Eric WD6DBM ? On Mon, Sep 28, 2020 at 7:09 AM, Fernando Sindeaux wrote: Dear Friends, Which one of those mics is the best in audio quality? Best regards to all, Fernando Sent from my iPhone > On Sep 27, 2020, at 8:31 PM, Don Wilhelm wrote: > > ?Eric, > > Yes to both. > > 73, > Don W3FPR > >> On 9/27/2020 7:04 PM, eric norris via Elecraft wrote: >> Will an MH2 mic work with a K3S, and will an MH4 mic work with a K2? >> Thanks, >> 73, Eric WD6DBM >> ? >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to donwilh at embarqmail.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to fsindeaux at yahoo.com From w5jv at hotmail.com Mon Sep 28 10:18:58 2020 From: w5jv at hotmail.com (Doug Hensley) Date: Mon, 28 Sep 2020 14:18:58 +0000 Subject: [Elecraft] FS New Elecraft W2-200 In-Reply-To: References: , , , Message-ID: FS: W2 Wattmeter. - List $379.00. Sell $329. Includes the 2 - 200 Watt Inline Sensor. Both new, unused. Documentation on-line. https://elecraft.com/collections/test-equipment/products/w2 If purchasing, please advise address, zip & contact number. Payment by simple check or money order or add 4% for PAYPAL. This email is NOT my PAYPAL account ID. Will send that to purchaser. 73, Doug W5JV From donwilh at embarqmail.com Mon Sep 28 10:23:33 2020 From: donwilh at embarqmail.com (Don Wilhelm) Date: Mon, 28 Sep 2020 10:23:33 -0400 Subject: [Elecraft] MH2, MH4 mic compatibility? In-Reply-To: References: <90ee7ed0-0929-836a-7dd0-1f828a4f40df@embarqmail.com> Message-ID: Fernando, They should be about the same.? They use different cases, but the insides are the same - an electret mic element. The MH4 was introduced only because the case for the MH2 was no longer available. 73, Don W3FPR On 9/28/2020 10:09 AM, Fernando Sindeaux wrote: > Dear Friends, > Which one of those mics is the best in audio quality? > Best regards to all, > Fernando > > Sent from my iPhone > > From ch at murgatroid.com Mon Sep 28 11:28:01 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Mon, 28 Sep 2020 08:28:01 -0700 Subject: [Elecraft] Does the K4 support IPv6? In-Reply-To: References: Message-ID: Thanks for the info. Yes, getting close to converting home to all IPv6 and getting rid of NAT. I run DHCP with dynamic DNS, so I only ever type in hostnames. 73 de AI6KG. On Sun, Sep 27, 2020, 11:41 PM Bob Wilson, N6TV wrote: > I'm not sure what you mean by "support IPv6". > > From a Windows command prompt, I tried a *ping -6* command with the > radio's IPv6 address, to force IPv6 addressing, and it responded just > fine. > > But it sure is easier to type the radios IPv4 address, which the rig > displays in the menu. It doesn't display the K4's IPv6 address, but my > Router interface displayed it. > > What application do you plan to use that requires IPv6? > > 73, > Bob, N6TV > > > On Sun, Sep 27, 2020 at 10:47 PM Christopher Hoover > wrote: > >> No answer? >> >> On Thu, Sep 24, 2020, 5:25 PM Christopher Hoover >> wrote: >> >> > >> > Does the K4 support IPv6? >> > >> > 73 de AI6KG >> > >> > >> ______________________________________________________________ >> Elecraft mailing list >> Home: http://mailman.qth.net/mailman/listinfo/elecraft >> Help: http://mailman.qth.net/mmfaq.htm >> Post: mailto:Elecraft at mailman.qth.net >> >> This list hosted by: http://www.qsl.net >> Please help support this email list: http://www.qsl.net/donate.html >> Message delivered to n6tv at arrl.net >> > From ch at murgatroid.com Mon Sep 28 11:30:40 2020 From: ch at murgatroid.com (Christopher Hoover) Date: Mon, 28 Sep 2020 08:30:40 -0700 Subject: [Elecraft] Does the K4 support IPv6? In-Reply-To: References: Message-ID: I had been running a 6to4 tunnel but my new ISP supports IPv6 directly. 73 de AI6KG On Sun, Sep 27, 2020, 11:47 PM Rick NK7I wrote: > Your router may supply it to your lan, but your provider may not utilize > it yet. > > Rick NK7I > > > On 9/27/2020 11:41 PM, Bob Wilson, N6TV wrote: > > I'm not sure what you mean by "support IPv6". > > > > From a Windows command prompt, I tried a *ping -6* command with the > radio's > > IPv6 address, to force IPv6 addressing, and it responded just fine. > > > > But it sure is easier to type the radios IPv4 address, which the rig > > displays in the menu. It doesn't display the K4's IPv6 address, but my > > Router interface displayed it. > > > > What application do you plan to use that requires IPv6? > > > > 73, > > Bob, N6TV > > > > > > On Sun, Sep 27, 2020 at 10:47 PM Christopher Hoover > > wrote: > > > >> No answer? > >> > >> On Thu, Sep 24, 2020, 5:25 PM Christopher Hoover > >> wrote: > >> > >>> Does the K4 support IPv6? > >>> > >>> 73 de AI6KG > >>> > >>> > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to n6tv at arrl.net > >> > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to 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 ch at murgatroid.com > From n6kr at elecraft.com Mon Sep 28 11:51:35 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Mon, 28 Sep 2020 08:51:35 -0700 Subject: [Elecraft] Does the K4 support IPv6? In-Reply-To: References: Message-ID: <2896CBB3-7101-42B6-8821-B060B7693B89@elecraft.com> The K4 will support IPv6. (Sorry for not answering sooner.) Wayne N6KR >> >> >> Does the K4 support IPv6? >> >> 73 de AI6KG From w2kj at bellsouth.net Mon Sep 28 12:10:09 2020 From: w2kj at bellsouth.net (Joseph Trombino, Jr) Date: Mon, 28 Sep 2020 12:10:09 -0400 Subject: [Elecraft] K4 shipping update References: Message-ID: Howdy Gang. OK?so it?s almost the end of September and I?m wondering if Elecraft can provide any updated shipping info on the K4. Or, are we looking at yet another delay. Inquisitive minds wanting to know and all of that stuff. 73, Joe W2KJ I QRP, therefore I am From keith at elecraft.com Mon Sep 28 12:32:11 2020 From: keith at elecraft.com (Keith Trinity WE6R) Date: Mon, 28 Sep 2020 09:32:11 -0700 Subject: [Elecraft] KAT3A In-Reply-To: <1347489797.415027.1600982812786@mail.yahoo.com> References: <1347489797.415027.1600982812786@mail.yahoo.com> Message-ID: <84d37216-db34-006b-fae8-79ebe0c8779b@elecraft.com> I have worked on thousands of these and I *never* pull the side panel to take out the KAT3 (or KANT3) boards. Too difficult if there is a sub-receiver and too likely to introduce a problem (broken regulator(s), miss-pinned sub receiver) from removing all that. Take off top cover and take out top rear screw thru rear sheet metal next to KAT/KANT3 board standoff. Take out zinc bolt and split washer holding the KAT/KANT3 card. Push the rear sheet metal back slightly and rock the card until it pops up, then pull the antenna wire pin(s) out of the board and pull the rest of the way out. Keith WE6R Elecraft K3 Tech. From w5jv at hotmail.com Mon Sep 28 13:49:47 2020 From: w5jv at hotmail.com (Doug Hensley) Date: Mon, 28 Sep 2020 17:49:47 +0000 Subject: [Elecraft] FS New Elecraft W2-2000 -- CORRECTION In-Reply-To: References: , , , , Message-ID: CORRECTION: This is a new Elecraft W2 with a SINGLE 2KW HF sample head & its CAT5 (or CAT6 cable). You supply the 12VDC Power and your tailored PL-259 cables. Sorry for the confusion. Doug w5jv Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds. ________________________________ From: Doug Hensley Sent: Monday, September 28, 2020 9:18 AM To: elecraft at mailman.qth.net Subject: FS New Elecraft W2-200 FS: W2 Wattmeter. - List $379.00. Sell $329. Includes the 2 - 200 Watt Inline Sensor. Both new, unused. Documentation on-line. https://elecraft.com/collections/test-equipment/products/w2 If purchasing, please advise address, zip & contact number. Payment by simple check or money order or add 4% for PAYPAL. This email is NOT my PAYPAL account ID. Will send that to purchaser. 73, Doug W5JV From fsindeaux at yahoo.com Mon Sep 28 14:37:18 2020 From: fsindeaux at yahoo.com (Fernando Sindeaux) Date: Mon, 28 Sep 2020 15:37:18 -0300 Subject: [Elecraft] MH2, MH4 mic compatibility? In-Reply-To: References: Message-ID: <6236E2F4-4CAE-4352-A8A5-A0B60AE87997@yahoo.com> Dear Don, Thank you for the answer! Appreciate your kindness! All the best to all, 73?s Fernando Sent from my iPhone > On Sep 28, 2020, at 11:23 AM, Don Wilhelm wrote: > > ?Fernando, > > They should be about the same. They use different cases, but the insides are the same - an electret mic element. > The MH4 was introduced only because the case for the MH2 was no longer available. > > 73, > Don W3FPR > >> On 9/28/2020 10:09 AM, Fernando Sindeaux wrote: >> Dear Friends, >> Which one of those mics is the best in audio quality? >> Best regards to all, >> Fernando >> >> Sent from my iPhone >> >> > From fsindeaux at yahoo.com Mon Sep 28 14:38:59 2020 From: fsindeaux at yahoo.com (Fernando Sindeaux) Date: Mon, 28 Sep 2020 15:38:59 -0300 Subject: [Elecraft] MH2, MH4 mic compatibility? In-Reply-To: <1803636239.1559278.1601302378813@mail.yahoo.com> References: <1803636239.1559278.1601302378813@mail.yahoo.com> Message-ID: <68CBFDA2-39E2-4A05-B264-17DA9C3B3E77@yahoo.com> Dear Eric, Thank you also! 73?s Fernando Sent from my iPhone > On Sep 28, 2020, at 11:13 AM, eric norris wrote: > > ?Don says they are functionaly identical. > > 73, Eric WD6DBM > > ? > > On Mon, Sep 28, 2020 at 7:09 AM, Fernando Sindeaux > wrote: > Dear Friends, > Which one of those mics is the best in audio quality? > Best regards to all, > Fernando > > Sent from my iPhone > > > On Sep 27, 2020, at 8:31 PM, Don Wilhelm wrote: > > > > ?Eric, > > > > Yes to both. > > > > 73, > > Don W3FPR > > > >> On 9/27/2020 7:04 PM, eric norris via Elecraft wrote: > >> Will an MH2 mic work with a K3S, and will an MH4 mic work with a K2? > >> Thanks, > >> 73, Eric WD6DBM > >> ? > >> ______________________________________________________________ > >> Elecraft mailing list > >> Home: http://mailman.qth.net/mailman/listinfo/elecraft > >> Help: http://mailman.qth.net/mmfaq.htm > >> Post: mailto:Elecraft at mailman.qth.net > >> This list hosted by: http://www.qsl.net > >> Please help support this email list: http://www.qsl.net/donate.html > >> Message delivered to donwilh at embarqmail.com > > > ______________________________________________________________ > > Elecraft mailing list > > Home: http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/mmfaq.htm > > Post: mailto:Elecraft at mailman.qth.net > > > > This list hosted by: http://www.qsl.net > > Please help support this email list: http://www.qsl.net/donate.html > > Message delivered to > fsindeaux at yahoo.com > From k5wa at comcast.net Mon Sep 28 23:29:06 2020 From: k5wa at comcast.net (K5WA) Date: Mon, 28 Sep 2020 22:29:06 -0500 Subject: [Elecraft] Remote software Message-ID: <03f901d69610$b0864140$1192c3c0$@comcast.net> Now I?m really confused?again. ? I just watched Eric?s presentation to Waters & Stanton on Oct 3, 2019 (https://www.youtube.com/watch?v=r-PHL68WIdg). He clearly states that Elecraft produced remoting software applications for Windows 10 (10:10 - 10:20 into the video), iOS and Android were being planned at that time however I have recently understood that remoting software from Elecraft was NOT being contemplated. My ultimate remote solution will be a K4/0 type device (or whatever new part number it will be, K4R?) but, in the meantime, having an Elecraft produced/blessed/influenced/published remoting software application would be a good interim. Anybody know for sure whether it is or isn?t being planned? Maybe it was decided to drop software and focus on hardware since last year due to COVID and fires? Thanks, Bob K5WA From ghyoungman at gmail.com Mon Sep 28 23:37:04 2020 From: ghyoungman at gmail.com (Grant Youngman) Date: Mon, 28 Sep 2020 23:37:04 -0400 Subject: [Elecraft] Remote software In-Reply-To: <03f901d69610$b0864140$1192c3c0$@comcast.net> References: <03f901d69610$b0864140$1192c3c0$@comcast.net> Message-ID: <0E7EB99F-0881-4AA9-9B3C-712C46DA706A@gmail.com> I think actually that he said they were ?going to? develop for Windows 10. I haven?t heard anything about progress on that, unless I?ve just missed it. What they?ve been using in the demos is running under Linux on the tablet. Grant NQ5T > On Sep 28, 2020, at 11:29 PM, K5WA wrote: > > Now I?m really confused?again. ? > > > > I just watched Eric?s presentation to Waters & Stanton on Oct 3, 2019 (https://www.youtube.com/watch?v=r-PHL68WIdg). He clearly states that Elecraft produced remoting software applications for Windows 10 (10:10 - 10:20 into the video), iOS and Android were being planned at that time however I have recently understood that remoting software from Elecraft was NOT being contemplated. My ultimate remote solution will be a K4/0 type device (or whatever new part number it will be, K4R?) but, in the meantime, having an Elecraft produced/blessed/influenced/published remoting software application would be a good interim. > > > From nr4c at widomaker.com Tue Sep 29 03:34:51 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 29 Sep 2020 03:34:51 -0400 Subject: [Elecraft] Remote software In-Reply-To: <0E7EB99F-0881-4AA9-9B3C-712C46DA706A@gmail.com> References: <0E7EB99F-0881-4AA9-9B3C-712C46DA706A@gmail.com> Message-ID: Ok, then. There IS software for Linux. Maybe Apache web server on the K4 and a browser on the tablet. Sent from my iPhone ...nr4c. bill > On Sep 28, 2020, at 11:40 PM, Grant Youngman wrote: > > ?I think actually that he said they were ?going to? develop for Windows 10. I haven?t heard anything about progress on that, unless I?ve just missed it. What they?ve been using in the demos is running under Linux on the tablet. > > Grant NQ5T > >> On Sep 28, 2020, at 11:29 PM, K5WA wrote: >> >> Now I?m really confused?again. ? >> >> >> >> I just watched Eric?s presentation to Waters & Stanton on Oct 3, 2019 (https://www.youtube.com/watch?v=r-PHL68WIdg). He clearly states that Elecraft produced remoting software applications for Windows 10 (10:10 - 10:20 into the video), iOS and Android were being planned at that time however I have recently understood that remoting software from Elecraft was NOT being contemplated. My ultimate remote solution will be a K4/0 type device (or whatever new part number it will be, K4R?) but, in the meantime, having an Elecraft produced/blessed/influenced/published remoting software application would be a good interim. >> >> >> > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 w5jv at hotmail.com Tue Sep 29 10:49:16 2020 From: w5jv at hotmail.com (Doug Hensley) Date: Tue, 29 Sep 2020 14:49:16 +0000 Subject: [Elecraft] FS New Elecraft W2 w/ 2 kW Sample Head In-Reply-To: References: , , , Message-ID: Re-posting this because I incorrectly described this the first time. For Sale is my Elecraft W2 Digital RF Power Meter with one sampling head rated for up to 2 Kw. The W2 can display zero to 2, 20, 200 or 2000 watts of outgoing RF power. The package includes the W2, the 2 kW Sampling head and the six foot CAT 5 or 6 (Elecraft P3/W2 Straight Through Patch cable) connecting cable. I did not use this so do not have and cannot supply any PL-259 cables for your K3 or K3S or whatever rig you are using. Take a minute to read E's website description: https://elecraft.com/collections/test-equipment/products/w2 The W2 today will cost $379 through their E store. I am selling for $329 so you save $50. If purchasing, please advise address, zip & contact number. Shipped via USPS for $10. Payment by simple check or money order preferred but you can add 4% for PAYPAL. Note: This email is NOT my PAYPAL account ID. I will send that to purchaser if required. Cheers, Doug W5JV Visit https://www.qrz.com/db/W5JV for some great vacuum tube finds. From n6kr at elecraft.com Tue Sep 29 11:14:22 2020 From: n6kr at elecraft.com (Wayne Burdick) Date: Tue, 29 Sep 2020 08:14:22 -0700 Subject: [Elecraft] Fire report In-Reply-To: References: <2480F013-ECBA-4C43-B1AA-9810EB2FB552@comcast.net> Message-ID: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Eric is working on a K4 shipping update. Meanwhile, I can give you an update on California's book-of-Job fires. The newest fires (in counties north of the Bay Area) have impacted two additional members of our K4 engineering team. One was poised for evacuation as of last night, and the other may have lost his home. Fortunately both of them and their families are safe. We're doing everything we can to help. Roads, housing, and supplies are severely impacted throughout the area. The prevailing winds are blowing smoke from these fires south, and on bad days the rest of us are sheltering indoors with windows closed. It hit near 100 F at my QTH each of the last two days, despite being only a mile from the bay and 15 miles from the ocean. I know I sound like a broken record with these gloomy reports, and I'm sure I speak for our entire staff in thanking you for your patience. (Anyone know when is 2020 going to end?) 73, Wayne N6KR > On Sep 29, 2020, at 7:55 AM, htash wrote: > > So, tomorrow is the last day of September, will we get a new shipping update? > >> On Sep 24, 2020, at 12:09 PM, thornton ash wrote: >> >> Given we were only days away from shipping several weeks ago, how about an update? >> >> Fires, documentation, etc? > From awinger2011 at icloud.com Tue Sep 29 12:22:16 2020 From: awinger2011 at icloud.com (Albert Winger) Date: Tue, 29 Sep 2020 10:22:16 -0600 Subject: [Elecraft] Elecraft] Fire report In-Reply-To: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> References: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: <832C04E8-5189-421F-B135-16D5821C87EE@icloud.com> Please know that all of you are in our thoughts and prayers. Stay safe Team. 73 Al W1NGA Monument, CO > On Sep 29, 2020, at 9:19 AM, Wayne Burdick wrote: > > ?Eric is working on a K4 shipping update. Meanwhile, I can give you an update on California's book-of-Job fires. > > The newest fires (in counties north of the Bay Area) have impacted two additional members of our K4 engineering team. One was poised for evacuation as of last night, and the other may have lost his home. Fortunately both of them and their families are safe. > > We're doing everything we can to help. Roads, housing, and supplies are severely impacted throughout the area. The prevailing winds are blowing smoke from these fires south, and on bad days the rest of us are sheltering indoors with windows closed. It hit near 100 F at my QTH each of the last two days, despite being only a mile from the bay and 15 miles from the ocean. > > I know I sound like a broken record with these gloomy reports, and I'm sure I speak for our entire staff in thanking you for your patience. (Anyone know when is 2020 going to end?) > > 73, > Wayne > N6KR > > >> On Sep 29, 2020, at 7:55 AM, htash wrote: >> >> So, tomorrow is the last day of September, will we get a new shipping update? >> >>>> On Sep 24, 2020, at 12:09 PM, thornton ash wrote: >>> >>> Given we were only days away from shipping several weeks ago, how about an update? >>> >>> Fires, documentation, etc? >> > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to awinger2011 at icloud.com From tom at w7sua.org Tue Sep 29 11:45:04 2020 From: tom at w7sua.org (Tom Azlin W7SUA) Date: Tue, 29 Sep 2020 08:45:04 -0700 Subject: [Elecraft] Fire report In-Reply-To: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> References: <2480F013-ECBA-4C43-B1AA-9810EB2FB552@comcast.net> <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: <6802fc61-60b9-b7fa-0a9c-ffc78631da06@w7sua.org> Thanks Wayne, Very sorry to hear about the fires and folks losing their homes and possessions. I sure hope the rains come and the fires get stopped soon. We see the smoke from time to time here in Arizona. I will happily keep using my K3/P3 until my turn comes up on the 2nd purchase group order list. 73, tom w7sua On 9/29/2020 8:14 AM, Wayne Burdick wrote: > Eric is working on a K4 shipping update. Meanwhile, I can give you an update on California's book-of-Job fires. > > The newest fires (in counties north of the Bay Area) have impacted two additional members of our K4 engineering team. One was poised for evacuation as of last night, and the other may have lost his home. Fortunately both of them and their families are safe. > > We're doing everything we can to help. Roads, housing, and supplies are severely impacted throughout the area. The prevailing winds are blowing smoke from these fires south, and on bad days the rest of us are sheltering indoors with windows closed. It hit near 100 F at my QTH each of the last two days, despite being only a mile from the bay and 15 miles from the ocean. > > I know I sound like a broken record with these gloomy reports, and I'm sure I speak for our entire staff in thanking you for your patience. (Anyone know when is 2020 going to end?) > > 73, > Wayne > N6KR From ed at w0yk.com Tue Sep 29 12:42:44 2020 From: ed at w0yk.com (Ed W0YK) Date: Tue, 29 Sep 2020 09:42:44 -0700 Subject: [Elecraft] Fire report In-Reply-To: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: For all of you with K4 orders, I can imagine how frustrating the wait is.? As a fortunate field tester for a couple months now, the radio exceeds even my informed expectations.? As a K4 focus team member over the last 4+ years, I continue to be pleasantly surprised with its actual performance and features.In the WW RTTY contest last weekend, its exceptional handling of high-QRM continues to be striking.? The clarity of the desired signal and overall audio quality far exceeds any radio I've used.Eric, Wayne and the entire Elecraft team continue to positively persevere despite the pandemic,? horrendous fires and other personal trauma that 2020 provides.? They sincerely appreciate the support and patience extended by you.73,Ed W0YK -------- Original message --------From: Wayne Burdick Date: 9/29/20 08:14 (GMT-08:00) To: Elecraft Reflector Subject: [Elecraft] Fire report Eric is working on a K4 shipping update. Meanwhile, I can give you an update on California's book-of-Job fires. The newest fires (in counties north of the Bay Area) have impacted two additional members of our K4 engineering team. One was poised for evacuation as of last night, and the other may have lost his home. Fortunately both of them and their families are safe.We're doing everything we can to help. Roads, housing, and supplies are severely impacted throughout the area. The prevailing winds are blowing smoke from these fires south, and on bad days the rest of us are sheltering indoors with windows closed. It hit near 100 F at my QTH each of the last two days, despite being only a mile from the bay and 15 miles from the ocean.I know I sound like a broken record with these gloomy reports, and I'm sure I speak for our entire staff in thanking you for your patience. (Anyone know when is 2020 going to end?)73,WayneN6KR> On Sep 29, 2020, at 7:55 AM, htash wrote:> > So, tomorrow is the last day of September, will we get a new shipping update?> >> On Sep 24, 2020, at 12:09 PM, thornton ash wrote:>> >> Given we were only days away from shipping several weeks ago, how about an update?>> >> Fires, documentation, etc?> ______________________________________________________________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 ed at w0yk.com From nr4c at widomaker.com Tue Sep 29 12:46:36 2020 From: nr4c at widomaker.com (Nr4c) Date: Tue, 29 Sep 2020 12:46:36 -0400 Subject: [Elecraft] Fire report In-Reply-To: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> References: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: <3DAD7BD5-07D2-40F0-A1C7-3E321C99332D@widomaker.com> Actually I do know when it?s supposed to end. But, I?m not sure 2021 is going to be better or even different! Sent from my iPhone ...nr4c. bill > On Sep 29, 2020, at 11:19 AM, Wayne Burdick wrote: > > ?Eric is working on a K4 shipping update. Meanwhile, I can give you an update on California's book-of-Job fires. > > The newest fires (in counties north of the Bay Area) have impacted two additional members of our K4 engineering team. One was poised for evacuation as of last night, and the other may have lost his home. Fortunately both of them and their families are safe. > > We're doing everything we can to help. Roads, housing, and supplies are severely impacted throughout the area. The prevailing winds are blowing smoke from these fires south, and on bad days the rest of us are sheltering indoors with windows closed. It hit near 100 F at my QTH each of the last two days, despite being only a mile from the bay and 15 miles from the ocean. > > I know I sound like a broken record with these gloomy reports, and I'm sure I speak for our entire staff in thanking you for your patience. (Anyone know when is 2020 going to end?) > > 73, > Wayne > N6KR > > >> On Sep 29, 2020, at 7:55 AM, htash wrote: >> >> So, tomorrow is the last day of September, will we get a new shipping update? >> >>>> On Sep 24, 2020, at 12:09 PM, thornton ash wrote: >>> >>> Given we were only days away from shipping several weeks ago, how about an update? >>> >>> Fires, documentation, etc? >> > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nr4c at widomaker.com From pvandyke1953 at gmail.com Tue Sep 29 13:01:23 2020 From: pvandyke1953 at gmail.com (Paul Van Dyke) Date: Tue, 29 Sep 2020 13:01:23 -0400 Subject: [Elecraft] Fire report In-Reply-To: <20200929164335.F1BF2149AB1A@mail.qsl.net> References: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> <20200929164335.F1BF2149AB1A@mail.qsl.net> Message-ID: Ed. I was in the KX3 pile up, mine (#22) went on a dxpedition 4 days after it was on my doorstep. KX2 #38 is on the road with me in Pigeon Forge now.. Laughing,, redoing the shack for the K4.. Sometime you have to wait for the best.. and the world whacks at you. Paul Van Dyke .. KB9AVO On Tue, Sep 29, 2020, 12:43 PM Ed W0YK wrote: > > For all of you with K4 orders, I can imagine how frustrating the wait is. > As a fortunate field tester for a couple months now, the radio exceeds even > my informed expectations. As a K4 focus team member over the last 4+ > years, I continue to be pleasantly surprised with its actual performance > and features.In the WW RTTY contest last weekend, its exceptional handling > of high-QRM continues to be striking. The clarity of the desired signal > and overall audio quality far exceeds any radio I've used.Eric, Wayne and > the entire Elecraft team continue to positively persevere despite the > pandemic, horrendous fires and other personal trauma that 2020 provides. > They sincerely appreciate the support and patience extended by you.73,Ed > W0YK > -------- Original message --------From: Wayne Burdick > Date: 9/29/20 08:14 (GMT-08:00) To: Elecraft Reflector < > elecraft at mailman.qth.net> Subject: [Elecraft] Fire report Eric is working > on a K4 shipping update. Meanwhile, I can give you an update on > California's book-of-Job fires. The newest fires (in counties north of the > Bay Area) have impacted two additional members of our K4 engineering team. > One was poised for evacuation as of last night, and the other may have lost > his home. Fortunately both of them and their families are safe.We're doing > everything we can to help. Roads, housing, and supplies are severely > impacted throughout the area. The prevailing winds are blowing smoke from > these fires south, and on bad days the rest of us are sheltering indoors > with windows closed. It hit near 100 F at my QTH each of the last two days, > despite being only a mile from the bay and 15 miles from the ocean.I know I > sound like a broken record with these gloomy reports, and I'm sure I speak > for our entire staff in thanking you for your patience. (Anyone know when > is 2020 going to end?)73,WayneN6KR> On Sep 29, 2020, at 7:55 AM, htash < > thorntonash at comcast.net> wrote:> > So, tomorrow is the last day of > September, will we get a new shipping update?> >> On Sep 24, 2020, at 12:09 > PM, thornton ash wrote:>> >> Given we were only > days away from shipping several weeks ago, how about an update?>> >> Fires, > documentation, etc?> > ______________________________________________________________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 ed at w0yk.com > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.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 turnbull at net1.ie Tue Sep 29 13:28:20 2020 From: turnbull at net1.ie (turnbull) Date: Tue, 29 Sep 2020 18:28:20 +0100 Subject: [Elecraft] Fire report In-Reply-To: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: <5f736eb4.1c69fb81.f7c05.823e@mx.google.com> Wayne and colleagues,? ? ? ?Hang in there and stay safe.? ? You are getting it from all sides.? ?Your products, services and openness have gained Elecraft loyalty from her customers.? ? ?73 Doug EI2CNSent from my Samsung Galaxy smartphone. -------- Original message --------From: Wayne Burdick Date: 29/09/2020 16:18 (GMT+00:00) To: Elecraft Reflector Subject: [Elecraft] Fire report Eric is working on a K4 shipping update. Meanwhile, I can give you an update on California's book-of-Job fires. The newest fires (in counties north of the Bay Area) have impacted two additional members of our K4 engineering team. One was poised for evacuation as of last night, and the other may have lost his home. Fortunately both of them and their families are safe.We're doing everything we can to help. Roads, housing, and supplies are severely impacted throughout the area. The prevailing winds are blowing smoke from these fires south, and on bad days the rest of us are sheltering indoors with windows closed. It hit near 100 F at my QTH each of the last two days, despite being only a mile from the bay and 15 miles from the ocean.I know I sound like a broken record with these gloomy reports, and I'm sure I speak for our entire staff in thanking you for your patience. (Anyone know when is 2020 going to end?)73,WayneN6KR> On Sep 29, 2020, at 7:55 AM, htash wrote:> > So, tomorrow is the last day of September, will we get a new shipping update?> >> On Sep 24, 2020, at 12:09 PM, thornton ash wrote:>> >> Given we were only days away from shipping several weeks ago, how about an update?>> >> Fires, documentation, etc?> ______________________________________________________________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 turnbull at net1.ie From elanzl at sbcglobal.net Tue Sep 29 14:51:25 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Tue, 29 Sep 2020 18:51:25 +0000 (UTC) Subject: [Elecraft] Elecraft 20M SSB Net for Sunday, September 27, 2020 References: <541307989.1636964.1601405485050.ref@mail.yahoo.com> Message-ID: <541307989.1636964.1601405485050@mail.yahoo.com> Here are the stations that checked in to the 20 M SSB Net this past Sunday. Again, a big thank you to the relay stations that help pick up the stations that can't be heard in the Midwest. Thanks to everyone who checked in to the net. Eric WB9JNZ Call???????????? Name????? State?????? Radio?????? Serial #?? QRP???????????????????????????????????????? Notes WB9JNZ????????? ? Eric??????????????? IL??????????????????? K3???????????????? 4017????????????? ????????????????????????????????????????? Net Control KO5V??????????????? Jim???????????????? NM?????????????? K2/100?????????? ? 7225????????????? ??????????????????????????????????????????? Relay Station??? K8NU/7????????? ?? Carl????????????? ?? OH/WA?????? Yaesu FT??? ? ? ?? 2000????????????? ???????????????????????????????????????????????? N6JW??????????????? John???????????? ?? CA???????????????? K3?????????????????? 936??????????????? ?????????????????????????????????????????? Relay Station ?? K6WDE???????????? David????????????? CA???????????????? KX3???????????? ? ? 4599????????????? 10 Watts??????????????????????????????? K7BRR???????????? ? Bill???????????????? AZ????????????????? K3S???????????? 10939?????????? ???????????????????????????????????????????????? NC0JW?????????? ? ? Jim???????????????? CO???????????????? KX3???????????? ? 1356????????????? ???????????????????????????????????????? ? ? Relay Station? ????? WM6P???????????? ?? Steve?????????? ?? GA???????????????? K3S????????? ?? 11453?????? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?? ? Relay Station ?? ??????????????????????????????????????????????? AE6JV??????????? ? ? Bill????????????????? NH???????????????? K3??????????????? 6299????????????? ???????????????????????????????????????????????? NS7P?????????????? ?? Phil?????????????? ? OR???????????????? K3?????????????? 1826????????????? ???????????????????????????????????????????????? W4DML???????? ? ?? Doug?????????????? TN????????????????? K3?????????????? 6433????????????? ???????????????????????????????????????????????? W1NGA???????? ? ?? Al????????????????? ? CO???????????????? Flex??????????? 6400????????????? ???????????????????????????????????????????????? WW4JF?????????? ?? John???????????? ?? TN?????????????? ?? K3S?????????? 11177?????????? ???????????????????????????????????????????????? N9CPD??????????? ?? Chuck????????? ? ? IL?????????????????? Yaesu FT???? ? 991??????????????? ???????????????????????????????????????????????? K6VWE??????????? ? Stan??????????????? MI??????????????? ?? K3??????????????? 650??????????????? ???????????????????????????????????????????????? K4HYJ???????????? ?? Hank?????????????? GA???????????????? K3S??????????? 11697?????????? ???????????????????????????????????????????????? KB3FBR???????????? Joe?????????????? ?? PA???????????????? K2/100????????? 6178????????????? ???????????????????????????????????????????????? N0MPM??????? ? ? ? Mike??????????? ? ? IA?????????????????? K3S??????????? ? 0514?????????? ???????????????????????????????????????????????? NA5C?????????????? ? Steve?????????? ? ? TX????????????????? ICOM?????????? ? 7610????????????? ???????????????????????????????????????????????? KC2TFX????????????? Dave??????????? ? ? NY???????????????? Kenwood?????? TS590?????????? ???????????????????????????????????????????????? ? KA4NXP???????? ? ? Bob???????????? ? ?? KY????????????????? Yaesu???????? ?? 891??????????????? ???????????????????????????????????????????????? KI5DCD?????????? ?? Aron?????????? ? ? ? AR??????????????? ? FT????????????? ?? 747DX????????? ???????????????????????????????????????????????? KG5HBX??????????? Daron????????? ? ? ? TX???????????????? ? FT??????????????????? 891??????????????? ???????????????????????????????????????????????? W5ACC?????????? ?? Phil?????????????? ?? TX?????????????????? FT???????????????? 101ZD?????????? ???????????????????????????????????????????????? K6FW??????????????? Frank???????? ? ? ? CA????????????????? K3S??????????????? 11672?????????? ???????????????????????????????????????????????? N7YW????????????? ? Ken???????????? ? ? AZ???????????????? ? K3?????????????????? 8183????????????? ???????????????????????????????????????????????? WD4FRC??????????? Ray??????????????? TN???????? ? ? ? ? ? Kenwood????????? TS520??? ??????????????? From elanzl at sbcglobal.net Tue Sep 29 15:03:10 2020 From: elanzl at sbcglobal.net (Eric Lanzl) Date: Tue, 29 Sep 2020 19:03:10 +0000 (UTC) Subject: [Elecraft] SSB Net 9-27-2020 References: <976079849.1644392.1601406190866.ref@mail.yahoo.com> Message-ID: <976079849.1644392.1601406190866@mail.yahoo.com> I am sending this again hopefully in plain text format. 9-27-2020 from the SSB Net. Call???????????? Name????? State?????? Radio?????? Serial #?? QRP???????????????????????????????????????? Notes WB9JNZ?????????? Eric??????????????? IL??????????????????? K3?????????????????? 4017????????????? ???????????????????????????????????????????????? Net Control KO5V??????????????? Jim???????????????? NM?????????????? K2/100????????? 7225????????????? ???????????????????????????????????????????????? K8NU/7?????????? Carl??????????????? OH/WA?????? Yaesu FT????? 2000????????????? ???????????????????????????????????????????????? N6JW??????????????? John????????????? CA???????????????? K3?????????????????? 936??????????????? ???????????????????????????????????????????????? K6WDE???????????? David??????????? CA???????????????? KX3??????????????? 4599????????????? 10 Watts??????????????????????????????? K7BRR????????????? Bill????????????????? AZ????????????????? K3S??????????????? 10939?????????? ???????????????????????????????????????????????? NC0JW???????????? Jim???????????????? CO???????????????? KX3??????????????? 1356????????????? ???????????????????????????????????????????????? WM6P????????????? Steve??????????? GA???????????????? K3S??????????????? 11453?????????? ???????????????????????????????????????????????? AE6JV?????????????? Bill????????????????? NH???????????????? K3?????????????????? 6299????????????? ???????????????????????????????????????????????? NS7P???????????????? Phil??????????????? OR???????????????? K3?????????????????? 1826????????????? ???????????????????????????????????????????????? W4DML?????????? Doug???????????? TN???????????????? K3?????????????????? 6433????????????? ???????????????????????????????????????????????? W1NGA?????????? Al?????????????????? CO???????????????? Flex?????????????? 6400????????????? ???????????????????????????????????????????????? WW4JF??????????? John????????????? TN???????????????? K3S??????????????? 11177?????????? ???????????????????????????????????????????????? N9CPD???????????? Chuck?????????? IL??????????????????? Yaesu FT????? 991??????????????? ???????????????????????????????????????????????? K6VWE???????????? Stan????????????? MI???????????????? K3?????????????????? 650??????????????? ???????????????????????????????????????????????? K4HYJ?????????????? Hank???????????? GA???????????????? K3S??????????????? 11697?????????? ???????????????????????????????????????????????? KB3FBR??????????? Joe??????????????? PA???????????????? K2/100????????? 6178????????????? ???????????????????????????????????????????????? N0MPM????????? Mike???????????? IA?????????????????? K3S??????????????? 10514?????????? ???????????????????????????????????????????????? NA5C??????????????? Steve??????????? TX????????????????? ICOM??????????? 7610????????????? ???????????????????????????????????????????????? KC2TFX??????????? Dave???????????? NY???????????????? Kenwood??? TS590?????????? ???????????????????????????????????????????????? KA4NXP?????????? Bob?????????????? KY????????????????? Yaesu??????????? 891??????????????? ???????????????????????????????????????????????? KI5DCD??????????? Aron???????????? AR???????????????? FT?????????????????? 747DX????????? ???????????????????????????????????????????????? KG5HBX?????????? Daron?????????? TX????????????????? FT?????????????????? 891??????????????? ???????????????????????????????????????????????? W5ACC??????????? Phil??????????????? TX????????????????? FT?????????????????? 101ZD?????????? ???????????????????????????????????????????????? K6FW??????????????? Frank??????????? CA???????????????? K3S??????????????? 11672?????????? ???????????????????????????????????????????????? N7YW?????????????? Ken?????????????? AZ????????????????? K3?????????????????? 8183????????????? ???????????????????????????????????????????????? WD4FRC?????????????? Ray???????? TN????????? Kenwood??????????? TS520??? ??????????????? From 99sunset at gmail.com Tue Sep 29 15:21:18 2020 From: 99sunset at gmail.com (Steve Hall) Date: Tue, 29 Sep 2020 15:21:18 -0400 Subject: [Elecraft] 40 meter SSB net 9-27-2020 Message-ID: 7.280 kHz 1900Z Thanks to all for checking in and those assisting with relays. WM6P STEVE GA K3S NETCONTROL WB9JNZ ERIC IL K3 NC0JW JIM CO KX3 WY3T TIM FL K3S W4DML DOUG TN K3 AE6JV BILL NH K3 NK9A STAN MI FT-757GX K4HYJ HANK GA K3S K8SWD/8 RUDY MI KX3 QRP GREAT JOB KG4WXU JERRY TN K2/100 K4MJF MIKE TN FT-991 K0DGR GENE MO IC7300 From oldmanshu at icloud.com Tue Sep 29 15:33:32 2020 From: oldmanshu at icloud.com (Joseph Shuman) Date: Tue, 29 Sep 2020 15:33:32 -0400 Subject: [Elecraft] Fire Report Message-ID: <42A3D127-905B-4F35-BF5E-20C637B1BC46@icloud.com> If you have a family with a lost home, set up a go fund me page and let me (us) know. All I will say is that I have lived the life of a Job with no end in sight, other than final judgment to which time I am not privy. A good support network is critical. Let me (at least) help, and I ask others to consider the same. Keeping Watch - shu Joe Shuman, NZ8P From k6dgw at foothill.net Tue Sep 29 16:35:40 2020 From: k6dgw at foothill.net (Fred Jensen) Date: Tue, 29 Sep 2020 13:35:40 -0700 Subject: [Elecraft] Fire report In-Reply-To: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> References: <2480F013-ECBA-4C43-B1AA-9810EB2FB552@comcast.net> <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: At my age, I haven't stayed up to welcome in a new year for quite awhile now, I found the new ones came whether or not I saw the ball drop.? This year however, I AM staying up just to make sure 2020 leaves. :-) All we get in N. NV is dense smoke when the wind is from the SW, which is pretty much most of the time.? We have kids and grandkids in N. CA, all OK right now.? It isn't just the fires and evacuations however, the magnitude of these fires is disrupting things all over the state bigly.? It's a ripple effect and it takes awhile to subside even after the flames are out [which they are not, yet].? It normally starts to rain around Halloween or Veterans' Day. 73, Fred ["Skip"] K6DGW Sparks NV DM09dn Washoe County On 9/29/2020 8:14 AM, Wayne Burdick wrote: > > I know I sound like a broken record with these gloomy reports, and I'm sure I speak for our entire staff in thanking you for your patience. (Anyone know when is 2020 going to end?) > > 73, > Wayne > N6KR > > From n1al at sonic.net Tue Sep 29 16:47:42 2020 From: n1al at sonic.net (Alan Bloom) Date: Tue, 29 Sep 2020 14:47:42 -0600 Subject: [Elecraft] Fire report In-Reply-To: References: <2480F013-ECBA-4C43-B1AA-9810EB2FB552@comcast.net> <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: <1a04e665-56fc-4e1a-0be8-fb9ca62835ac@sonic.net> And it's not just in California.? Here where I'm staying in southern Utah there have been a number of wildfires recently.? In the middle of the desert!? Almost no trees here but with the heat we've been having there are lots of brush fires. Alan N1AL On 9/29/2020 2:35 PM, Fred Jensen wrote: > > All we get in N. NV is dense smoke when the wind is from the SW, which > is pretty much most of the time.? We have kids and grandkids in N. CA, > all OK right now.? It isn't just the fires and evacuations however, > the magnitude of these fires is disrupting things all over the state > bigly.? It's a ripple effect and it takes awhile to subside even after > the flames are out [which they are not, yet].? It normally starts to > rain around Halloween or Veterans' Day. > elivered to alan at elecraft.com From kl7uw at acsalaska.net Tue Sep 29 17:26:51 2020 From: kl7uw at acsalaska.net (Edward R Cole) Date: Tue, 29 Sep 2020 13:26:51 -0800 Subject: [Elecraft] Elecraft 20M SSB Net for Sunday, September 27, 2020 Message-ID: <202009292126.08TLQqCZ024998@mail40c28.carrierzone.com> I listened on 14.303.5 but heard briefly a SSB signal two minutes before the net time and nothing after. Been a long time since I checked in. Years ago Phil NS7P was net control and I could hear him often. Even WWV was missing on 15-MHz so guess 20m was not reaching up here. I run 100w into Hygain TH3mk4. 73, Ed - KL7UW http://www.kl7uw.com Dubus-NA Business mail: dubususa at gmail.com From jmdriskell at msn.com Tue Sep 29 17:41:20 2020 From: jmdriskell at msn.com (James Driskell) Date: Tue, 29 Sep 2020 21:41:20 +0000 Subject: [Elecraft] Fire report In-Reply-To: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> References: <2480F013-ECBA-4C43-B1AA-9810EB2FB552@comcast.net> , <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: Tough year, hang in there, Wayne and everyone at Elecraft. 73, Jim W7OWI ________________________________ From: elecraft-bounces at mailman.qth.net on behalf of Wayne Burdick Sent: Tuesday, September 29, 2020 08:14 To: Elecraft Reflector Subject: [Elecraft] Fire report Eric is working on a K4 shipping update. Meanwhile, I can give you an update on California's book-of-Job fires. The newest fires (in counties north of the Bay Area) have impacted two additional members of our K4 engineering team. One was poised for evacuation as of last night, and the other may have lost his home. Fortunately both of them and their families are safe. We're doing everything we can to help. Roads, housing, and supplies are severely impacted throughout the area. The prevailing winds are blowing smoke from these fires south, and on bad days the rest of us are sheltering indoors with windows closed. It hit near 100 F at my QTH each of the last two days, despite being only a mile from the bay and 15 miles from the ocean. I know I sound like a broken record with these gloomy reports, and I'm sure I speak for our entire staff in thanking you for your patience. (Anyone know when is 2020 going to end?) 73, Wayne N6KR > On Sep 29, 2020, at 7:55 AM, htash wrote: > > So, tomorrow is the last day of September, will we get a new shipping update? > >> On Sep 24, 2020, at 12:09 PM, thornton ash wrote: >> >> Given we were only days away from shipping several weeks ago, how about an update? >> >> Fires, documentation, etc? > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft at mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to jmdriskell at msn.com From frantz at pwpconsult.com Tue Sep 29 17:59:00 2020 From: frantz at pwpconsult.com (Bill Frantz) Date: Tue, 29 Sep 2020 17:59:00 -0400 Subject: [Elecraft] Fire report In-Reply-To: <1a04e665-56fc-4e1a-0be8-fb9ca62835ac@sonic.net> Message-ID: My hopes, prayers, and best wishes to all who have been impacted by these fires. For those interested in tracing the smoke's effects, try , a crowd-sourced collection of more or less world wide Air Quality Index reports. 73 Bill AE6JV ---------------------------------------------------- Bill Frantz | Art is how we decorate space, 408-348-7900 | music is how we decorate time. www.pwpconsult.com | -Jean-Michel Basquiat From clark.macaulay at gmail.com Tue Sep 29 18:22:06 2020 From: clark.macaulay at gmail.com (Clark Macaulay) Date: Tue, 29 Sep 2020 18:22:06 -0400 Subject: [Elecraft] Fire report In-Reply-To: <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> References: <2480F013-ECBA-4C43-B1AA-9810EB2FB552@comcast.net> <03AC195B-6ED7-4A38-A4DC-BA6EBCC9AF48@elecraft.com> Message-ID: Wayne, I can't imagine what you guys (and gals) are going through out there. I've not purchased a K4 (my k3 is serving me very well), but i have been following this drama as it unfolds. Radios, factories, and houses can be replaced; people can't. Glad to hear everyone in the Elecraft family is safe. Clark, WU4B Virus-free. www.avast.com <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2> On Tue, Sep 29, 2020 at 11:18 AM Wayne Burdick wrote: > Eric is working on a K4 shipping update. Meanwhile, I can give you an > update on California's book-of-Job fires. > > The newest fires (in counties north of the Bay Area) have impacted two > additional members of our K4 engineering team. One was poised for > evacuation as of last night, and the other may have lost his home. > Fortunately both of them and their families are safe. > > We're doing everything we can to help. Roads, housing, and supplies are > severely impacted throughout the area. The prevailing winds are blowing > smoke from these fires south, and on bad days the rest of us are sheltering > indoors with windows closed. It hit near 100 F at my QTH each of the last > two days, despite being only a mile from the bay and 15 miles from the > ocean. > > I know I sound like a broken record with these gloomy reports, and I'm > sure I speak for our entire staff in thanking you for your patience. > (Anyone know when is 2020 going to end?) > > 73, > Wayne > N6KR > > > > On Sep 29, 2020, at 7:55 AM, htash wrote: > > > > So, tomorrow is the last day of September, will we get a new shipping > update? > > > >> On Sep 24, 2020, at 12:09 PM, thornton ash > wrote: > >> > >> Given we were only days away from shipping several weeks ago, how about > an update? > >> > >> Fires, documentation, etc? > > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to clark.macaulay at gmail.com > -- 73, Clark, WU4B Little Pistol With Wires QRPARCI #10815 SKCC #3892 NAQCC #5055 CWOPS #1869 Collins Collectors #AC90-12432 Southeastern DX Club North Georgia QRP Club *"It is vain to do with more what can be done with less."* *Attributed to *William of Occam (1288 AD - 1348 AD) From rcrgs at verizon.net Wed Sep 30 07:53:20 2020 From: rcrgs at verizon.net (Robert G Strickland) Date: Wed, 30 Sep 2020 11:53:20 +0000 Subject: [Elecraft] test References: <2e979128-c7a5-d2e1-74f6-6d6a01db6d1b.ref@verizon.net> Message-ID: <2e979128-c7a5-d2e1-74f6-6d6a01db6d1b@verizon.net> -- Robert G Strickland, PhD ABPH - KE2WY rcrgs at verizon.net.usa Syracuse, New York, USA From w6jhb at me.com Wed Sep 30 14:46:36 2020 From: w6jhb at me.com (James Bennett) Date: Wed, 30 Sep 2020 11:46:36 -0700 Subject: [Elecraft] KX2 / WM1 Reporting Conflict Message-ID: Wondering if anyone can help on this - I?ve got a KX2 and W1 Power Meter. The power out on the KX2 does not match what the W1 is reporting. I have the W1 connected to my MacBook Pro displaying the serial data being sent to it. I just verified that the W1 voltage at the TP1 connector is exactly 4.5 volts, per the manual. I ran the KX2 Manual Transmit Gain Calibration. The KX2 is showing exactly 6.0 watts into a dummy load, going through the W1. The serial data reported by the W1 is 7.20 watts, consistently. Also, the KX2 firmware is the most recent. So, who is wrong - KX2 or W1? And what can I do to resolve it? Tnx, Jim / W6JHB From john at kn5l.net Wed Sep 30 15:33:26 2020 From: john at kn5l.net (John Oppenheimer) Date: Wed, 30 Sep 2020 14:33:26 -0500 Subject: [Elecraft] KX2 / WM1 Reporting Conflict In-Reply-To: References: Message-ID: Hi Jim, Both the KX2 and W1 need to be calibrated to a standard. The W1 manual 4.5V is a rough calibration. As I remember, KX2's are calibrated at the factory at some (I've forgotten) power level. Both the KX2 and W1 are somewhat non linear. For my shack, I've decided that a DL1, along with an accurate 10M Ohm Fluke DVM is the standard. No adjustment required and is as accurate as the 1% load resistors, DL1 diode drop voltage, and DVM accuracy. John KN5L On 9/30/20 1:46 PM, James Bennett via Elecraft wrote: > Wondering if anyone can help on this - I?ve got a KX2 and W1 Power Meter. The power out on the KX2 does not match what the W1 is reporting. I have the W1 connected to my MacBook Pro displaying the serial data being sent to it. > > I just verified that the W1 voltage at the TP1 connector is exactly 4.5 volts, per the manual. I ran the KX2 Manual Transmit Gain Calibration. The KX2 is showing exactly 6.0 watts into a dummy load, going through the W1. The serial data reported by the W1 is 7.20 watts, consistently. Also, the KX2 firmware is the most recent. > > So, who is wrong - KX2 or W1? And what can I do to resolve it? From ra25447125 at gmail.com Wed Sep 30 17:47:35 2020 From: ra25447125 at gmail.com (Ronald M Anderson) Date: Wed, 30 Sep 2020 16:47:35 -0500 Subject: [Elecraft] (no subject) Message-ID: From starman10 at hotmail.com Wed Sep 30 23:18:25 2020 From: starman10 at hotmail.com (Lou W0FK) Date: Wed, 30 Sep 2020 20:18:25 -0700 (MST) Subject: [Elecraft] K4 Pricing Posted Message-ID: <1601522305636-0.post@n2.nabble.com> For orders placed prior to 12/31/2020 K4-F - $4,099.95 K4D-F - $4,999.95 K4HD - TBD K4/10-F - $3,599.95 https://elecraft.com/products/k4-transceiver Lou, W0FK -- Sent from: http://elecraft.365791.n2.nabble.com/ From norrislawfirm2 at gmail.com Wed Sep 30 23:42:47 2020 From: norrislawfirm2 at gmail.com (Eric Norris) Date: Wed, 30 Sep 2020 20:42:47 -0700 Subject: [Elecraft] K4 Pricing Posted In-Reply-To: <1601522305636-0.post@n2.nabble.com> References: <1601522305636-0.post@n2.nabble.com> Message-ID: Book 'em, Dano. ATU $399.99, same as K3s if memory serves. And here I was staying so calm... 73 Eric WD6DBM On Wed, Sep 30, 2020, 8:18 PM Lou W0FK wrote: > For orders placed prior to 12/31/2020 > > K4-F - $4,099.95 > K4D-F - $4,999.95 > K4HD - TBD > K4/10-F - $3,599.95 > > https://elecraft.com/products/k4-transceiver > > Lou, W0FK > > > > -- > Sent from: http://elecraft.365791.n2.nabble.com/ > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:Elecraft at mailman.qth.net > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to norrislawfirm2 at gmail.com > From kennedyjp at cableone.net Wed Sep 30 23:58:29 2020 From: kennedyjp at cableone.net (Jim Kennedy) Date: Wed, 30 Sep 2020 23:58:29 -0400 (EDT) Subject: [Elecraft] K3 RX dead 80/20 meters Message-ID: <407210955.92867194.1601524709104.JavaMail.zimbra@cableone.net> Hello all, I need some help ! My K3 s/n 3378 has gone deaf on 80 and 20 meters, all other bands are good. It does not have a second receiver installed. I have confirmed the receive signal on the other bands is good with my HP 8640B signal generator. I can get a signal thru it on 80/20 meters but it takes a ton of RF from the signal generator. The attenuator is not on nor the preamp. The internal antenna tuner works as expected. I have normal power out on all bands including 80/20 meters measured with a Bird 43 and Bird dummy load. Any help would be much appreciated. Jim W7OUU