Hi Stu
QDX has
4 BPFs in the front end (selection of the toroid here might be tricky, 37-2 or 37-6)
3 LPFs after the PA output
please study the manual for normal and hi-band
you'll figure out
I did some experiment with an LPFless QDX
it is possible...
73 muhsin TA1MHS
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