Erik Sounds like an intermittent patch lead. You need to find it, otherwise it will come back and bite you - guaranteed to be at the worst possible moment !
John G4ZTR -----Original Message----- From: Elecraft [mailto:[email protected]] On Behalf Of E T Sent: Sunday, January 22, 2017 18:37 To: [email protected] Cc: Elecraft Reflector Reflector Subject: Re: [Elecraft] KXPA100 RF feedback Not sure what it was but I seem to have inadvertently fixed it. I took the amp out to my Jeep and hooked it up with my KX2 to my screwdriver antenna and could not reproduce the issue. I brought it back inside and hooked it back up and it is working ok, so it must have been a loose connection or something, even though I thought I had unhooked and reconnected everything... In the immortal words of Emily Litella, "Never mind!" :-) Thanks and 73, Erik Tkal - W1QED On Jan 22, 2017, at 12:41 PM, Don Wilhelm <[email protected]> wrote: Erik, Apparently something *did* change in your antenna system. It may not be in the shack. Look for something that arcs over at higher power or a loose connector or a balun that has failed. 73, Don W3FPR On 1/22/2017 11:36 AM, E T wrote: > Today my KXPA100 stopped working properly. Whenever I transmit I start getting feedback, a sort of electric stuttering effect. When the amp is bypassed this does not occur. Also, if I transmit into a dummy load the problem does not occur, indicating that somehow the antenna RF must be affecting the amp in some way? > > Nothing has changed in my shack since yesterday, and the problem occurs with both my KX3 and KX2, so it's not the radio. Everything is fully grounded to a copper bus bar on my desk. I performed the factory reset through the KXPA Utility with no change. > > Has anyone had this happen? > > > Thanks and 73, > Erik Tkal - W1QED > > ______________________________________________________________ > 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] ______________________________________________________________ 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]
