[amsat-bb] Re: satellite antenna

Bob Bruninga bruninga at usna.edu
Tue Apr 24 14:16:46 PDT 2012

> any one have a good idea for a omni directional antenna for the birds?

3/4 wave vertical.  Has almost 7 dBi gain above 30 deg.
For 70cm downlinks, this means a 19.5" vertical over a ground plane.  Also
is a perfect 1/4wave on 2 meters.

It's the yellow curve on the plot about 80% down this page:

Bob, Wb4aPR

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