I would guess that you have a piece of coax and/or connector going bad. Will be something common in the path from amp to antennas, including a remote coax switch. Something is arcing
Cables and connectors are forever going bad. Especially the ones we've used forever and just keep reusing because they're a convenient length. Most likely something mechanical, too much bending for too many years, etc. 73, Guy K2AV On Thu, Nov 24, 2016 at 10:00 PM, Carl Yaffey <cyaf...@gmail.com> wrote: > I recently posted: > > > KAT500 utility: can’t connect (KAT500 not responding) > > > > KPA500 utility: connects at 38400 no problem but no info shows in the > operate tab. firmware N/A. I try to load firmware and it fails. I tried to > force a load (per the manual) with no luck. > > I solved this by plugging in the cables one at a time. All utilities > working fine now. > > New problem: > > On 6 meters, with the input power to the KPA500 around 7 watts, I get 200 > watts out. But as I increase the input power, the SWR increases and a “hi > swr” fault occurs. This happens with 3 different antennas: a 3 el beam, an > R8 vertical, and a dipole. All are tuned to low swr via my KAT500. > I have tried connected the beam directly to the KPA with the same result. > This only happens on 6 meters. It used to work fine when I had a K3. I now > have a K3S. Is there some setting in either the K3S or the KPA that I > should change? > > > > Carl Yaffey K8NU > Recording studio. > cyaffeyno_s...@gmail.com > 614 268 6353, Columbus OH > http://www.carl-yaffey.com > http://www.grassahol.com > http://www.bluesswing.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 k2av....@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