GM Barry,
I've 30m QCX without that problem. I built mine with T1 a little different 3, 3, 3, 31 windings instead of 4, 4, 4, 30 windings, but the audio range is fine and sensitivity on a par with the big rig. C1 is not fully open nor closed, so the peak test is OK. For the dip test (I think that was side band rejection) I have to go to one extreme with the variable resistors, but again I seem to have no problem with hearing any opposite side band. I assume you have gone through the alignment menu section of the manual again and ensured you have correct peaks and dips. When I first read that I did not understand the importance of the digit top right, and that had me confused.
Hope you can find the cause and fix the problem.
I'm using 1.00(b).
