> Lyle - is there anything to be gained by running the RF Calibration on 3 > bands (like with the XG2 Signal Generator)? No. The DSP will use the last set of readings only. I use 20 meters, but it isn't critical. I probably woudln't use 6 meters, since the attenuator and/or preamp transfer characteristic probably is slightly different there. 73, Lyle KK7P