Hi Harmish,
Glancing at your NEC2 input file I noticed a wrong scale factor
(GS-line): it should be 0.0254 (_NOT_ 0.254) to convert inches to
meters. With this correction my NEC2 run gives a feedpoint impedance
of (50.2 - j23.6)Ohm and a gain of 8.48dBi at theta=90 and phi=0,
reasonable data for your 50MHz-3-ele-Quad in free space!
To examine the antenna at 236.22 inch (6.0m) simply add that value to
all z-coordinates in the geometry section of the NEC2 input
file. Don't forget to set GN=1 and GE=1 to say NEC there is a
perfectly conducting ground plane.
gl, Uwe, DL4AAE
Received on Wed Mar 01 2000 - 06:12:31 EST
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