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Old 05-22-2015, 02:38 AM
Ochroma Pyramidale Tekton
FlyWheel's Avatar
Join Date: Jul 2007
Location: Clover, South Carolina
Posts: 3,033
Question coiling 72MHz antennas?

I've heard this can be done, so long as the coil isn't too tight and it's not wound around anything conductive, like metal or CF. If this is true, I would like to get all of the antenna inside the fuselage of my newest plane, but the antenna is about 6" too long (so close!). So I was wondering if it could be coiled without significant signal loss, and if so, which method would give better results?

"Base loaded"; The section of wire closest to the RX is coiled, the rest left straight (like the magnetic CB car roof antennas).

fully coiled; a loose, open coil along the entire length of the wire, no tighter than absolutely necessary to fit.

P.S. Don't even think of suggesting 2.4GHz I'm not in the least bit interested.
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