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Old May 18th 07, 04:14 PM posted to rec.radio.amateur.antenna
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Default Efficiency of Vertical

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.


Hi Cecil,

Just curious. Half the power of what?
120 radials 1 foot off ground? Input power?

73,

Chuck

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