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Old August 12th 06, 06:38 PM posted to rec.radio.amateur.antenna
Bill Turner Bill Turner is offline
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First recorded activity by RadioBanter: Jul 2006
Posts: 131
Default Frequency Sensitivity of mobile HF vertical antennas.

ORIGINAL MESSAGE:

On Fri, 11 Aug 2006 20:05:58 -0400, Dave wrote:


What's happening in the world of Antenna Physics to account for the change in
sensitivity as a function of position above or below the loading coil?


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That behavior is perfectly normal. Length above the coil has far more
effect than length below the coil. Mobile operators have observed that
effect forever. Perhaps someone else can explain the physics involved?

Bill, W6WRT