I have a similar issue. Rig is on, Amp is on, all good, been working fine. Shut off Amp, rx signals drop drastically. Amp still off, key exciter, 10 watts or so, just a 'dit' is enough, sigs pick back up in receiver, all normal. Not a 'show stopper", but curious why it is happening. Amp is a month old and other than this, working fine, working fine. Never been run above 1 kw out. Bob - K2RU
Sent from the all new AOL app for Android On Mon, Jan 17, 2022 at 10:57 AM, Larry Shapiro<las...@cox.net> wrote: I have the similar problem with one of my 1500 amps. Elecraft says it is a relay that is bad. I do need to get it fixed, Larry k6ro -----Original Message----- From: Andy Durbin Sent: Monday, January 17, 2022 7:20 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] KPA1500 problem "No, RX audio just appears greatly attenuated - acting like the antenna is disconnected. There is still the ambient hiss from the K3 speaker." Isn't that exactly what you would expect to hear if the amplifier was spuriously keyed but the K3 was not keyed? All it would take is a faulty keying cable. 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 las...@cox.net -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ______________________________________________________________ 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 rim1...@aol.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