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Re: Topband: 1/4 wave vertical

To: "Allan Greening" <vk3pa@vk3pa.com>, topband@contesting.com
Subject: Re: Topband: 1/4 wave vertical
From: Jon Zaimes AA1K <jz73@verizon.net>
Date: Fri, 10 Sep 2004 01:39:00 -0400
List-post: <mailto:topband@contesting.com>
Hi Al,

Full-size 1/4 wave with Rohn 25 -- about 11 inches on a face -- is about 128 
feet tall. Your tower should be pretty close to that, maybe slightly taller. 
Common method is to put up 120 feet of tower and then make the remainder a 
piece of aluminum tubing clamped to the tower, and adjustable up/down to 
resonate the tower.Fastening with a couple of hose clamps will work.

My Rohn 25 for 160 is only 100 feet, and I have a small 6-meter yagi on top 
that brings it into resonance on 160.

73/Jon AA1K
Web site: www.aa1k.us



At 05:31 PM 9/9/04, you wrote:
>hi all how long should a 10 inch per side tri tower be for 160m es under gnd 
>radials be Al  vk3pa
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