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Old Dec 20, 2009, 07:35 AM
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Joined Jul 2003
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Quote:
Originally Posted by Cr_Conrado View Post
+ 2 x 18db 90 on the plane
Opps, I just observed that. How do you mean that? Directional antenna on the plane?
A 18dB antenna is highly directional. The plane turns, tilts etc. You lost the signal every time unless tracking on the plane as well. But such a tracking system is too complicated, way above the usual amateur level.

And what the 90 means? 18dB gain with that beam width is just impossible.
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Last edited by mmormota; Dec 20, 2009 at 07:44 AM.
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