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Old September 19th 05, 04:12 AM
Cecil Moore
 
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Roy Lewallen wrote:
The theoretical values converge
at 214 - j189 ohms, and the measured values at 218 - j174 ohms.


Free space? As a data point, I pushed EZNEC to the limit on 40m
with a 9000 ft. dipole. Resonant feedpoint resistance at
7.152 is 390 ohms. Anti-resonant feedpoint resistance at 7.092
is 1980 ohms. It appears that EZNEC would converge to something
in between those two values for an infinite dipole in free space.
I ran into the segment limit at 66 wavelengths.
--
73, Cecil http://www.qsl.net/w5dxp


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