I have built and used several copies of the DC injection and recovery for coax
as designed by AD5X and published in a recent QST article.
There haven't been any problems YET. I'm concerned that at some frequency I'll
end up with a series resonant circuit shunting lots of RF to ground.
How can I check for such a situation? And can I check just the unit connected
to a dummy lod or will each antenna /feedline combo have to be checked? The
latter might be difficult since our club uses these gadgets at Field Day, PA
QSO Party, etc.to power tuners and antenna switches.
TIA & 73
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