As a follow-up, I've either fixed the problem, or it's become a lot more (or less?) intermittent...
Twice, I re-touched all of the solder joints involved with the 160M option, both on the 160M board and the K2's RF board - it never helped. Tapping on the 160M board's mounting screw, or the left side panel at the rear 2d connector would cause the band to work. J14 is a tall header that connects the 160M board to the K2. It is made up of two parts, and seems a bit fragile. I replaced it, and so far 160M has not failed again. Also, I had tightened the BNC antenna connector against the heat sink panel. That was apparently flexing the RF board. My guess is that J14 had an internal failure because of that, so I left the BNC loose on the heat sink panel. We'll see if everything continues to function. Again, thanks for the help! 73, Jim KO5V -----Original Message------ >From: Don Wilhelm <donw...@embarqmail.com> >Sent: Mar 2, 2019 5:36 PM >To: Jim KO5V <k...@earthlink.net>, Elecraft List <elecraft@mailman.qth.net> >Subject: Re: [Elecraft] K2: Flaky 160M switching > >Jim, > >Unplug the K160RX and then plug it back in to wipe any oxidation off the >pins. That may or may not help, but is one easy thing to do "just in case". > >73, >Don W3FPR ______________________________________________________________ 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
