Lyle, > Tuning the knob to a higher frequency while copying CW on an Icom (in > "normal" CW mode) results in a higher audio pitch, which always made > sense to me. The rest of the world has got it wrong :-) Not at all! When a received signal moves higher in frequency the rest of the world wants the pitch to go _up_. In other words, USB is the way to = go! Makes sense to me :-) 73 Johan SM6LKM