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Old August 31st 07, 05:15 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
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First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default Vertical antenna problem

neno wrote:
What do You suggest?
To cut only radials to 3.25m or vertical and radials to 4.7m?
What is better?


Or (3) you could leave the radials as they are
and shorten the vertical wire.

The physical environment will shift the
resonant frequency away from that predicted
by EZNEC as modeling is not an exact science.

Any of the three choices will work and none of
them will result in the exact resonant frequency
you desire. In the end, to get the frequency
exact, you will be required to "cut and try" in
an iterative process that often forces you to
add back one inch of the two inches you just
removed. :-)
--
73, Cecil http://www.w5dxp.com