The voltage read by the internal K3 meter says the voltage drops to 12.6 volts which I reported to the tech's at Elecraft. They did not think it significant. Also, the problem only has been reported on 6 meters. I'm a 98% Cw operator so if there was a hint of a chirp on the HF bands, it would have been brought to my attention by those I work regularly.
The power lead I use is the one supplied by Elecraft. Pete, W1RM -----Original Message----- From: Adrian [mailto:vk4...@bigpond.com] Sent: Sunday, August 12, 2012 10:04 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 Chirp on 6 Meters Measuring voltdrop at the supply i.e. 13.77v to 13.74v is irrelevant. Please tell us what it is at the APP connector or screen (load end) please? I had several of them and my K3 is back at Elecraft right now for service, but they are not able to reproduce the problem. I know there is a mod for the synthesizer board and that was made without solving the problem. No, it's not my power supply either - a big 50 amp Astron provides 13.77 volts key up and 13.74 volts key down. It's not RF because when I got the report I reduced power (external amp off) down to the point where the station could not copy me and the chirp was still there. The strange thing is I had a local listen to my signal and it was clean. At a later time, two reports (one from eastern MA the other from SC and I'm in central CT) said I had a chirp. In both cases I had been on 6 for a while. Is it frequency dependent? Is it heat dependent? Again, I would appreciate hearing from you if you have had reports of a chirp on 6 meters - what frequency were you on at the time? How long had you been operating (was the rig getting warm?) or any other observation that might help to pinpoint a way of duplicating the problem. Thanks! Pete, W1RM ______________________________________________________________ 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 ______________________________________________________________ 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 ______________________________________________________________ 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
