I don't have the same equipment as you but I experienced a very similar problem that I initially thought was caused by a problem with my KPA500. However, when I looked at the output of my TS-590S with a scope and spectrum analyzer, I found that it was emitting out of band spurii at the end of each transmission. The signal was clean before keying ended. The problem was only seen on 10 m and 6 m.
My KAT500 reported a high SWR at end of transmission because the spike frequency was way off my SteppIR tuned frequency. My TS-590S problem was caused a failed capacitor that changed the rise time of a pin diode bias signal and disrupted switching between TX and RX. It may be a good idea to have a close look at your exciter output signal when TX ends. 73, Andy, k3wyc ______________________________________________________________ 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
