Given a few hours free I decided to investigate a problem with RF feedback that I had been getting with my K2. Occasionally on 80m I had received reports that the TX audio was not 100% and after backing everything off, things improved. It was only when I noticed that on 40m I could provoke the RF feedback that I have gotten around to doing something. After checking the mic leads etc I decided that the RF was getting into the input of the speech amp/compressor IC. The cure was to fit a 1mH RF choke (out of the junk box) in series with C32. This provided an immediate and complete cure. Hope this helps someone.
73 Stewart G3RXQ _______________________________________________ Elecraft mailing list Post to: [email protected] You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
