Re: [Elecraft] KPA-500 Switch from STBY to OPER
Bill, No relays in the T/R switching path for the KPA500 - all solid state switching. 73, Don W3FPR On 2/10/2020 6:39 PM, Bill Weaver wrote: If there is a relay in the rx signal path, check the contacts. I had that happen with my Alpha recently. Of all the possibilities that was the easiest thing to fix. Thankfully that was the problem :-). __ 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
Re: [Elecraft] KPA-500 Switch from STBY to OPER
If there is a relay in the rx signal path, check the contacts. I had that happen with my Alpha recently. Of all the possibilities that was the easiest thing to fix. Thankfully that was the problem :-). 73, Bill WE5P Get BlueMail for Android On Feb 10, 2020, 17:52, at 17:52, afpac...@gmail.com wrote: >I am looking for thoughts and suggestions to diagnosis what I am >seeing. >When the amp is changed from STBY to OPER the receive signal drops by >multiple db and the general background seems to increase significantly. >The >tuner seems to work the same with or without the amp. When I transmit >it >appears I am getting full power output. I am driving the KPA-500 with a >K3. > > > >Thanks in advance > > > >Allan > >WA7BKD > > > > > > > > > >__ >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 weave...@usermail.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
Re: [Elecraft] KPA-500 Switch from STBY to OPER
Sounds as though the TR switching has failed. Contact Elecraft support. Bob, K4TAX Sent from my iPhone > On Feb 10, 2020, at 5:05 PM, afpac...@gmail.com wrote: > > I am looking for thoughts and suggestions to diagnosis what I am seeing. > When the amp is changed from STBY to OPER the receive signal drops by > multiple db and the general background seems to increase significantly. The > tuner seems to work the same with or without the amp. When I transmit it > appears I am getting full power output. I am driving the KPA-500 with a K3. > > > > Thanks in advance > > > > Allan > > WA7BKD > > > > > > > > > > __ > 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 rmcg...@blomand.net > __ 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
[Elecraft] KPA-500 Switch from STBY to OPER
I am looking for thoughts and suggestions to diagnosis what I am seeing. When the amp is changed from STBY to OPER the receive signal drops by multiple db and the general background seems to increase significantly. The tuner seems to work the same with or without the amp. When I transmit it appears I am getting full power output. I am driving the KPA-500 with a K3. Thanks in advance Allan WA7BKD __ 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
