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Old May 19th 07, 12:50 AM posted to rec.radio.amateur.antenna
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Default Efficiency of Vertical

On Fri, 18 May 2007 13:29:44 GMT, Cecil Moore
wrote:

John Ferrell wrote:
I am not doubting your word but I am curious how you modeled this in
EZNEC?


I modeled it on 40m with radials elevated one
foot above ground. Note: one foot is 0.007 WL
on 40m, admittedly ballpark, but roughly half
the power seems to be lost in the direction
of no radials. Maybe someone with NEC-4 can
provide a more accurate simulation.

The good news is that losing half the power is
roughly half an S-Unit.

Thanks!
I have been using the same tactic for my modeling but I was unsure
about the accuracy of the answers.

John Ferrell W8CCW
"Life is easier if you learn to
plow around the stumps"
 
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