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#11
April 20th 09, 10:07 PM
posted to rec.radio.amateur.antenna
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Dish reflector
Art Unwin wrote:
Kraus states that for a helix one should not use wire shorter than two wavelength which I suspect is a substitute calculation for the VF change from a straight radiator. Because of adjacent coil coupling, it takes more wire to achieve the phase shift effect of a straight wire. -- 73, Cecil, IEEE, OOTC, http://www.w5dxp.com |
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