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Old October 28th 04, 02:11 PM
Cecil Moore
 
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Yuri Blanarovich wrote:
I will leave Cecil's equation to Cecil, ...


The equation, Itot=Ifor+Iref, doesn't look complex, but it is. :-)

Not sure if you saw it, but it looks to me that even EZNEC 4+ is on "our" side.


I modeled an eight-sided coil in EZNEC 2.0 before I knew EZNEC+
had a helical feature. The result is at:

http://www.qsl.net/w5dxp/octcoil.gif

EZNEC reports that the current at the top of the coil is 0.5326
amps while the current at the bottom of the coil is 0.9956 amps.
I plotted the current in all 40 EZNEC 2.0 coil segments - looks
close to a cosine function to me with the coil occupying
roughly 50 degrees of the antenna.
--
73, Cecil http://www.qsl.net/w5dxp


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