I had the issue with my 1500 several months ago and it was traced to one of the PIN diodes. Good news is after trip to the left coast for repair and all ECO updates applied the amp has been perfect.
Dave wo2x -----Original Message----- From: [email protected] <[email protected]> On Behalf Of Barry Simpson Sent: Sunday, September 8, 2019 8:22 AM To: [email protected] Cc: Elecraft Mailing List <[email protected]> Subject: Re: [Elecraft] KPA 500 Attenuated Receive Signals Thanks Don That's what I thought. I will email them tomorrow. 73 Barry VK2BJ On Sun, 8 Sep 2019 at 21:36, Don Wilhelm <[email protected]> wrote: > Barry, > > I think you may find a problem in the KPA500 T/R switch area. > Email [email protected] for further checks and resolution. > > 73, > Don W3FPR > > On 9/8/2019 2:34 AM, Barry Simpson wrote: > > My KPA 500, which is several years old, has just developed an issue > > which so far I have been unable to resolve. > > > > What has happened is that when I put the amplifier into OPER, the > received > > signal strength drops by several S units. It transmits normally and > > also receives normally in STBY. > > > ______________________________________________________________ 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]
