Thanks Dale. I tried that - checked continuity on the cable itself, tore the KXPA100 apart and checked inbound continuity, everything... Still the same thing. I noticed in the brief window when the KX3 sees it, right after switching PAMode, if I hit the tune button I get an error "ATU Not Present" so I'm suspicious more is happening. I gave up - Field Day at 15 watts isn't a whole lotta fun (and I had limited time to play anyhow).
I'll dig into it more and eventually reach out to Elecraft for support. Bummer! On Sat, Jan 25, 2025 at 11:31 AM Dale Boresz <dmbor...@gmail.com> wrote: > Hi John, > > My KX3/KXPA100 has experienced the same symptom. The problem ended up > being that the short CAT6 cable with the RJ45 connectors on each end was > not making a good connection at the PA end. The small plastic 'locking tab' > on the RJ45 connector had been accidentally broken off (by me) long ago, > and for years the connector had enough friction to remain seated in the PA. > Until one day it didn't. I replaced the cable with a short cable I had > lying around, and it has been fine ever since. > > Best of luck troubleshooting. > > 73, > > Dale - WA8SRA > > > > > On Fri, Jan 24, 2025 at 8:44 PM John Overbaugh <k7jto.j...@gmail.com> > wrote: > >> I have a KX3 and the KXPA100 with the KXPA to KX3 Connector Cable. I have >> been radio "inactive" for several months and noted recently the KXPA100's >> power switch was set to on. For quite some time, I kept hearing a >> recurring >> tick and only realized a week ago that the KXPA100 was turning on and off >> every so many seconds. >> >> Fast forward to this evening and I'm setting back up because, like the >> procrastinator I am, I'm participating in Winter Field Day tomorrow (from >> home, long story). I better get ready, right? I connected the KX3 and the >> KXPA100, did all the things, powered on the KX3 and switched PA Mode to >> "On" and exited the menu. A few seconds later, it switched out of PA mode. >> Back and forth I played that game 4-5 times and then stepped back... >> >> - The 2.5mm tipped cable was pinched in between a case and its cover, >> but doesn't appear to be broken. >> - I checked the pinouts based on the Cady book and I have continuity in >> all lines >> - I connected the KXPA100 via USB serial cable and launched the KXPA >> utility. There are a number of fault codes, but none that appear when >> this >> switches off >> - No fault code appears on the "Operate" tab either >> - It just... switches off >> >> Am I overlooking something obvious? It's been 100% reliable for me for a >> good 5 years now, so I'm really unclear what could be happening. >> >> Thanks in advance, >> John O. >> K7JTO >> Layton, UT >> ______________________________________________________________ >> 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 dmbor...@gmail.com >> > ______________________________________________________________ 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
