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Disparaging Helical Antennas for AO-40...some notes



My September 1997 QEX column (the issue with a cavity reflector helix on the
cover)
suggested gains of 15.5 dBi for the G3RUH helix and 17.8 dBi for an accurate
duplication
of the King and Wong 35 turn helix.

I concluded that you really want a small dish on  for 2.4 GHz receive.
However, if you have
a really fine converter with an EME quality preamp, it should be possible to
use a helix.
--Zack W1VT
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