Re: [Elecraft] K3 KPA100 not putting out in high power
Hi Jim, Since the bypass relay actuates, can you check the KPA3 (or KPA3A, depending on which generation of K3 you have) input side of the relay to verify that the relay is doing its job, i.e. that RF is making it onto the KPA3 input? A scope is best, but a simple RF probe and DMM would also suffice. The principal difficulty is accessing the KPAIO3 board on which the bypass relay is mounted. If the relay is switching the TX drive into the KPA3, but you're not seeing any output power from the KPA3, there are several places where the KPA3 module can fail and produce that effect. Keith, WE6R, the Elecraft K3/K4 tech par excellence, may advise how best to test the KPA3 module since the component side is not accessible when it's mounted in the K3. 73, Mike, K8CN __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 KPA100 not putting out in high power
My K3 has stopped working in high power. It works fine until output hits 12 watts. I hear the relay kicking in at that point to switch the K3 PA bypass relay to the KPA100 module, but power goes to 0 and swr fluctuates all over the place. The amp breaker does not appear to have been tripped. Does anyone have a suggestion? Jim W2SM __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KX3 sold
I've sold my KX3. Jim W7OWI __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] KX3 and SWR
Hello Paul, The tuner in my KX3 used to give me a nice 1:1 SWR at 7.05 MHZ. Now the best match it will give there is about 1.6:1. In the "old days" we were happy with anything under 2:1 but can new rigs like my KX3 tolerate this poorer match? I only run 5-watts CW. The KX3 should tolerate an SWR of 1.6:1. I have already unintentionally transmitted with my KX3 (5W CW) without antenna and the KX3 is still in good health. The manual says at page 6: "The KX3 reduces power if SWR is high." 73/72 de Ingo, DK3RED - Don't forget: the fun is the power! www.qrp4fun.de - dk3...@qrp4fun.de __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] Mysterious T
Page 12 in the manual states; "T indicates FM/Tone, CW/DATA text decode, or AM-Sync auto-tracking." 73 Bob, K4TAX __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] KX3 and SWR
My HyGain AV-640 vertical antenna was damaged in a recent winter storm and will need to come down for repairs once the good weather is here to stay and I can get around to it. In the mean time I would still like to use it. The only band that really shows a significant problem is 40-meters. The tuner in my KX3 used to give me a nice 1:1 SWR at 7.05 MHZ. Now the best match it will give there is about 1.6:1. In the "old days" we were happy with anything under 2:1 but can new rigs like my KX3 tolerate this poorer match? I only run 5-watts CW. Let me say "thank you" in advance for any advice anyone might have. 73, Paul - N8XMS __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3/0-mini and FT8/Q65 / Remoterig
I didn't find a simple way. Assuming you have the remoterig set up for SSB/voice, what I did was to route the soundcard TX audio to the mic input on the radio RR. To do that I used an old Rigblaster, which allowed me to easily switch the AF input to the RR between mic and soundcard. There are many ways to do this cheaper but I had the Rigblaster gathering dust. As to RX audio, I used the SPKR output on the side of the K3/0-mini. That means switching between soundcard RX audio and a speaker/headset for human RX. Or you could come up with a similar switching arrangement as with TX audio. -- Message: 2 Date: Mon, 13 Mar 2023 13:30:26 +0100 From: Viggo Magnus Nilsen To: Elecraft Subject: [Elecraft] K3/0-mini and FT8/Q65 / Remoterig Message-ID: <055b7e7113d46d1f90c87a11c3dc6...@online.no> Content-Type: text/plain; charset=US-ASCII Hello K3 owners. My Remote setup is K3 connected to the Remoterig box at the QTH site, at home operating it with K3/0-mini., I prefer CW, but from time to time want to try some Digimodes. WHAT TO I HAVE TO DO FOR THAT MODE WITH K3/0-MINI / REMOTERIG.? Com port 1 and 2 at the Radio RRC is connected to the K3 ,and KPA500. At the QTH K3 working very well with the connections Line in/Line out to the PC in Q65 mode on EME. 73' Viggo LA9NEA -- Scott NX7U __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
