To: | towertalk@contesting.com |
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Subject: | [TowerTalk] 160 m. antenna ideas |
From: | "Rob Atkinson, K5UJ" <k5uj@hotmail.com> |
Date: | Sun, 19 Nov 2006 00:18:32 +0000 |
List-post: | <mailto:towertalk@contesting.com> |
Re shunt feeding the tower: What is really being discussed is constructing a ~ 1/4 wave folded monopole vertical (I hate the term "shunt feed." It is one of those ham terms that means something if you already know what shunt feeding is, but is utterly meaningless to a newcomer.) similar to the folded groundplane antennas used for vhf and uhf two way radio bases only on a bigger scale. The problem is that you have a crankup, so the connections between sections may be iffy. You have the steel cable of course, but I'd prefer simply running a wire out a few feet from the tower, up to the top and then out horiz. as far as possible to make an inverted L. The horiz. part doesn't have to be straight. you can get away with bending it around some like this for example: _/ \_ (there should be a high line between the two slashes). Of course for any of these you'll need radials. rob / k5uj _________________________________________________________________ View Athlete?s Collections with Live Search http://sportmaps.live.com/index.html?source=hmemailtaglinenov06&FORM=MGAC01 _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk |
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