[hfsig] soliciting advice regarding 30m HAT

[KB3CS - Chris]

unlike the 20m HAT, there are no frequency selective elements before the RF
amp.

has anyone tested (or could test) the 30m HAT output when instead a 40m
band excitation frequency is used?  would the output be to horrible to
inflict on the airwaves?

also, if i'm not mistaken, the latest rpitx release uses GPIO4 for all
output modes.

comments?

 - 0x49 -  chris  KB3CS
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