What happens with a dummy load? If it doesn’t fail, then the problem is in the antenna. The KPA may be more sensitive to a short period of high SWR than the K3.
Victor 4X6GP > On 27 Sep 2019, at 8:26, Peter Dougherty <[email protected]> wrote: > > My KPA is once again repeatedly failing on 160m. I haven't used it on > Topband since about the end of March, when it was fine. My antenna is > checking out fine on my AA-230 ZOOM analyzer, and I can run 100W into the > antenna from the K3s with no problem. > > > I'm getting FAULT: PWR REFL on every keydown with drive power at any level, > even just 5W in will cause it to fail. > > I am running from the K3s directly into the KPA-1500, and from the KPA to an > antenna switch out to the antennas. Everything was 100% last time I fired > up, and the am IS working on 20 and 40 (the only other bands I've used since > March). Any idea where to start looking here? I'm at a complete loss and > have just missed two new DXCC entities on 160 as a result. > > > --------------------------------------------- > 73 and Good DX > Peter, W2IRT > > > > President, North Jersey DX Association > > DXCC Card Checker > Letter O Manager, ARRL Incoming 2nd District QSL bureau > > > > ______________________________________________________________ > Elecraft mailing list > Home: http://mailman.qth.net/mailman/listinfo/elecraft > Help: http://mailman.qth.net/mmfaq.htm > Post: mailto:[email protected] > > This list hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to [email protected] ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]

