It's been said before. Check your cables and connectors for arcing. It won't happen with lower power but as the voltage goes up with higher power it may arc across a bad cable or connector. Possibly even in a tuner.
Can you test with different cables or a dummy load? 73, Mark On Sun, Dec 30, 2018 at 5:35 PM Steve <a...@bellsouth.net> wrote: > > > Sent from my I-Phone > > Begin forwarded message: > > > GE, folks > > My KPA1500 (s/n 121) has developed a problem: > > When applying power (15-20W) from the K3 to the amp, it immediately > faults to:low gain fault ratio 3 (sometimes ratio 2 to ratio 6). The SWR > indicator shows high SWR as the amp faults. 100w only from exciter will > cause ATU to tune to 1:1 but when amp is switched on, it immediately faults > as above. Looked through archives and manual. No mention of this particular > fault. Any ideas would be appreciated. > > 73 and HNY > > Steve AA4V > > > > > > Sent from my I-Phone > > ______________________________________________________________ > 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 marklgoldb...@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
