I heard this too during a QSO not too long ago. It was intermittent tho and just started happening in the middle of the QSO. I was keying the rig through the USB->rs232 adapter with RUMLog's keyer at about 20wpm, I thought something had suddenly gone wrong. It did go away tho as the QSO went on...
I can't reproduce it with the build-in keyer plus paddles into a dummy load at any power setting. Perhaps I'll have another go with this with the computer and see what happens. Interesting.... 73, LS W5QD -- View this message in context: http://elecraft.365791.n2.nabble.com/QSK-THUMPS-tp4971836p4974029.html Sent from the [K3] mailing list archive at Nabble.com. ______________________________________________________________ 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