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Old June 28th 11, 02:21 AM posted to rec.radio.amateur.antenna
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First recorded activity by RadioBanter: Jul 2006
Posts: 409
Default 43 foot verticals

I have seen two commercial antennas advertised that are each 43 feet tall,
and have no traps/stubs, etc.
There appears to be a 4:1 balun at the feedpoint. Mentioned, is the
requirement to have a tuner at the driving end of the feedline, and max
VSWRs in the 4:1 range.

Playing around a bit with EZNEC, the feedpoint impedances over the
operating range have some large swings. Can anyone shed light on how
effective the antenna should be?
Wayne
W5GIE

 
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