Hi, Anyone else seeing a birdie on 28004.9+/-? With no antenna, CW, 500Hz hardware filter, 50Hz DSP, I see DISP readings: -21dBV pre-amp OFF -1.4dBV pre-amp ON In either case the ATT makes only another -2dBV difference. It doesn't display on the S-meter but given many workable signals don't on 10M it is relevent. Regards, Mike VP8NO