Dale, are you using a 5MHz vfo? or have you changed to 19MHz and generate USB at 12MHz.
I note you have been using a spectrum analyser. Do you see any close in spurious outputs like in Tom Hurst's "BitX40 Spectrum Output" on page 2 of the files section?
For me, the 19Mhz is not a solution because the xtal filter is so bad on that side.
73 Brian.
