Thank you all for the input and comments - it has re-assured me to a great extent that the problem is external to the QCX.
I should add that?as inadequate as the?antenna system is, I have obtained RBN spots with the QCX?in continental Europe and Scandanavia as far as 1500km.
The same antenna even gave me a QSO with a K station a couple of months ago on 20m with my MTR-3B.
Many thanks again
Robin
G4DNP
