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Old 9-Aug-2011, 7:23 AM   #3
ghz24
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Join Date: May 2011
Location: Central Illinois U.S.
Posts: 71
good use for a biquad

If you're looking for a good antenna to place at the focus of a large dish I'd suggest a biquad (with a reflector) because the large beamwidth will illuminate the whole dish. I've been working on a model to see what kind of gain is achievable.
Nice antennas in the links John. Ive been looking for reliable info on those tri-boomed yagis. Any other links?
BTW I'm pretty sure the wade helical antennas will actually be 3 dB lower than reported because of circular vs horizontal polarization unless you happen to be near one of the very few circular transmitting stations. But wow 24 - 3 = 21 that's still very large gain.
I wonder how flat the gain vs freq. graph is ( they always report gain at the best channel.
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