I built a QCX for 20 meters the other day. It went well. I powered it up, aligned it, and immediately made a QSO. It put out 5 watts at 13.8 volts without any adjustment.
I¡¯ve noticed that the CW filter isn¡¯t very tight though. I can hear strong stations from 100 Hz to 1800 Hz as I tune up and down the band, although largely diminished when off of the 700 Hz center frequency, but not quite gone. I¡¯ve looked at that portion of the board and can¡¯t find anything obvious. Any ideas?
Mac, KB9HV