Hi again, I did as Don suggested, and checked the values of all of the capacitors around U1, and all of the band-switching relays. I also re-flowed all of their solder joints. With the bottom panels, top panel and the left-side panel off, the click in the audio was a lot better, and switching VFOs on 15M was quiet. However, after I put it all back together, it's all returned. I looked the the S-meter, and with the RF gain set fully cw, I see the following brief readings that accompany the clicks and pops in the speaker:
15M, VFO A to VFO B: S1; *15M, VFO B to VFO A: S9; 15M-17M: S1; 17M-15M: click, no reading; *15M-12M: S5; 12M-15M: click, no reading; 20M-30M: click, no reading; 30M-20M: click, no reading. The other bands/VFOs switch quietly. Otherwise, the radio seems to work just fine, and has been performing well. I recently set 15M VFO B to 20MHz WWV, and that's when I noticed this. I wonder if I should just forget about it, except the S5 and S9 pops just don't give me a good feeling. How does the radio switch between VFO A and VFO B? I assume it's done in the firmware, but is some relay (or a band-specific relay) involved? Has anyone else with a K2 noticed something similar? Should I be looking somewhere else, or just move on? Thanks, and sorry to keep obsessing about this. 73, Jim KO5V ______________________________________________________________ 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
