When I trimmed the number of turns on the inductors (L1, L2, L3 and L4) I decided through lack of time to avoid the cut-n-try approach in favour of the measuring the inductors and adjusting turns until they matched the specified values in the manual. It was more labour intensive but I felt it had a better chance of success given my currently limited spare time.
Robin,
Although I do not have a QCX it looks possible just to remove one end of an inductor, unwind one turn and resolder to the top of the board. The unwound length will have only a very small inductance. Then test, remove another turn, or even rewind that turn.
That is the way I have adjusted inductors on similar boards.
L1 manual says 25 turns (had to remove 5 turns)
Of course if you have an inductance meter you can trust then use that. Obviously if you remove more turns than you need then it will appear to work but harmonic rejection may not be so great.
73 Alan G4ZFQ
