Jim I've had exactly your problem (and sorry for rather late response). I'm using Windows (so it's not that) and it's not the encoder/pot, it's the rf gain calibration. I've posted on this before and there's been a change to the rf gain setup since f/w 3.27. Wes has also mentioned that fets have a somewhat uncontrolled gain characteristic.
I redid the rf gain calibration but using factory defaults rather than an external sig gen and that cured it. Only trouble now is the S meter over-reads above S9+10 by up to 20dB. But I can live with that. It's interesting (spooky?) that you have #1189 and I have #1198..... Graham ______________________________________________________________ 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