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Re: [TowerTalk] 160M Inverted L

To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] 160M Inverted L
From: "David L. Thompson" <thompson@mindspring.com>
Date: Sat, 3 Jan 2004 00:22:20 -0500
List-post: <mailto:towertalk@contesting.com>
If you can get 160 to 170 feet instead of 135 feet (3/8 wave rather than 1/4
wave) you get a much closer match to 50 ohms plus move the radiation point
up the L instead of being at ground level.

If you have a very tall tower you can make an L from a half wave dipole
(still fed in the center).
This removes the need for radials (see W4RNL notes on the 1/2 wave L).
Even better make the dipole a K8UR sideways V (actually first used by
W9LT/WA7LT).  This also works with loaded
or short dipoles.

If you want to stick with a 1/4 wave L use ladderline which again matches 50
ohms better.

Dave K4JRB


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See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather 
Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions 
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