This is not a solution. It is a workaround. :) 73, zoli ha1ag
----- Original Message ---- Yes, a well known issue for a LONG time...with a SUPER EASY solution. It is indeed due to the internal speaker. A year or so ago, I got a call from a local (a couple miles away) that he had a "spurious" on his K3 (I helped him build it). I listened, yes it was there. When he switched from the internal speaker to headphones, it was gone. I think he ended up using an external speaker which also solved the problem (some guys like speakers!). de Doug KR2Q ______________________________________________________________ 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