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Transponder antenna - blade vs stub monopole



 
 
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  #9  
Old June 14th 08, 07:18 AM posted to rec.aviation.soaring
Marc Ramsey[_2_]
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Posts: 211
Default Transponder antenna - blade vs stub monopole

Alan wrote:
In article brianDG303 writes:
Is there a downside to mounting on a ground plane inside the fuselage
of a non-carbon glass glider?


Since the ground plane should extend at least 23 inches in each
direction around the antenna, it is probably hard to get that inside
the glider.


23 inch radius for a quarter-wave antenna? Most installations I've seen
use no more than a 3 inch radius ground plane...
 




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