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Old 19-Nov-2011, 10:50 PM   #9
GroundUrMast
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Join Date: Oct 2010
Location: Greater Seattle Area
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Quote:
Originally Posted by ghz24 View Post
Here are the specs on the 2 meter dish and here's the model.
The finco p-5 and p-7 had a folded dipole driven three element yagi
(the p-7 had more directors I think) much like what john described
in his now mutilated post. Next I'll post a page on the p-5.
Then I'll try replacing the biquad on this model with the feed from a p-5.
I was actually hoping for more gain from this large of an antenna. I've seen
8bay whisker antennas that do almost this good with less wind area.
It's been my experience that the parabolic really comes into it's prime as you enter the GHz+ region, At sub-GHz frequencies it's easier to build high aperture antennas in panel, curtain and Yagi forms. Your efforts reaffirm that notion. However, if very narrow beam-width is needed, the parabolic would still be worth considering.
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Last edited by GroundUrMast; 19-Nov-2011 at 10:53 PM.
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