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Helically-wound Monopoles

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February 23rd 09, 12:48 PM posted to rec.radio.amateur.antenna

Cecil Moore[_2_] Cecil Moore[_2_] is offline

Cecil Moore[_2_] is offline

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First recorded activity by RadioBanter: Mar 2007

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Helically-wound Monopoles

wrote:
Yep... The only way to get a helical wound stick to really
work well is to have a decent length stinger on it.

One thing stands out loud and clear from the 75m
mobile shootout results. The longer the straight
high current bottom section under the loading coil,
the greater the radiated signal. The best 75m
mobile antennas that I have ever seen were not
center-loaded. They were top loaded.

One was my entry which was a CB whip with a
horizontal top loading coil and capacity hat at
the top which equaled the top-rated bugcatchers
and screwdrivers and bested all the others.

The other was a 10 foot long, 2 inch diameter
copper pipe with a loading coil and top hat
on top out in El Paso. I forget who entered it.
--
73, Cecil http://www.w5dxp.com

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