[amsat-bb] Homebrew Up-Dated Eggbeater Antenna
bruninga at usna.edu
Tue Mar 15 18:50:03 UTC 2016
NO84 is only 300 mW compared to 2W for the original PCSAT and 5W for the
ISS (currently). You need gain to hear it...
If you want a non-moving fixed antenna to hear NO84, I'd try a 58"
vertical whip over a large metal ground plane. This would give you up to
7 dBi above about 30 degrees. Then you would hear it every day, but only
for the better passes above 25 degrees. But you would hear it then.
And I modeled it in EZNEC and just a vertical over say 4 radials is not
the same thing. That helps matching, but does not block the 3db part of
the pattern into the ground. You need a real "ground plane" of a metal
roof, or about 6 feet or more of chicken wire.
Easy for me to say, because I have not built one yet...
> Bummer! I'm looking for some sort of an Omni ant to use with NO-84
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