I'm troubleshooting low SSB output, about 2 watts, from my V4 uBITX. In making measurements I find I have a 400mv SSB signal going into the 45MHz filter, Y1, but only 40mv coming out of the filter at at C214/C215 junction. This 20db loss through the 45MHz filter seems extreme to me. Could I have a bad crystal filter since I'm measuring the signal levels at the input/output of the crystal filter? Any suggestions appreciated.
Harvey, WA2AAE
