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Old November 9th 05, 12:04 AM
Dave Platt
 
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Default VHF Circularly Polarized Antenna, for local use?

That works pretty good until the other guy is also at 45 to the world
and 90 degrees to you!


.... or is using a standard horizontal antenna, but happens to be
located in the plane of your antenna. In this situation, he will
"see" only the component of your antenna's radiation pattern - he'll
be in a deep null for any horizontal radiation and may not hear you at
all.

Building an antenna which is omnidirectional, and which also has
substantially equal horizontally- and vertically-polarized signal
components over the full omni donut, is possible (commercial FM
services do it) but seems to be tricky, expensive, and prone to being
narrow-band.

--
Dave Platt AE6EO
Hosting the Jade Warrior home page: http://www.radagast.org/jade-warrior
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