Sorry. I shouldn't have said QSK relay. I took out the KPA and popped the 10W jumper back in. The 12Khz squeal is gone. I hear a little bit of clicking coming from the LPA board but nothing that I would suspect is abnormal. Here's the slightest clicking I'm hearing without the KPA installed ( http://alien.liltechdude.com/files/Recordings/Memo.mp3 )
I popped the KPA back in and changed the setting to KPA not installed and still hear the 12Khz squeal and the louder 'clicking'. It sounds like it's coming from either the KPA board or the KPAIO3 (the board the amp plugs into) Everything I have described can be heard using the audio files I posted. AB3LS On Thu, Jun 30, 2011 at 10:04 AM, Don Wilhelm <w3...@embarqmail.com> wrote: > Geoff, > > How are you hearing any "QSK relay clicking" in the K3? There are no > relays changed between receive and transmit, it is all silent electronic > switching. If you are hearing something that sounds like a relay click, > then that needs to be investigated - it should not be. > > Sorry, but I cannot venture any guess about the source of the 12 kHz. > Have you tried turning the monitor down to zero? Where does the source > seem to be located? > Do you still hear it if you go to the CONFIG menu and set the KPA3 to "not > installed"? > > 73, > Don W3FPR > > > On 6/30/2011 9:24 AM, Geoff Wolf AB3LS wrote: > >> And, for even more information, I analyzed the audio that I recorded and >> the >> squeal is right around 12Khz. It peaks at -48dB (louder than the QSK relay >> clicking) >> >> http://imgur.com/V8o5t - image of the analysis >> >> ______________________________________________________________ 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
