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[TowerTalk] rope in elements

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Subject: [TowerTalk] rope in elements
From: (Tom Rauch)
Date: Wed, 28 Mar 2001 09:27:06 -0500
Hi Jim,

>  An antenna that needs ropes in elements are poorly
>  constructed.

I disagree with that. My Rohn 25G with open ends at the top (I use 
it as a vertical antenna and for supporting ropes, no yagi's) vibrates.

I'm not worried about the vibration because it is steel. I did know of 
a fellow with an aluminum tower who lost the whole top 30 feet or 
so of the tower in a mild breeze, because it vibrated and cracked.

As I look back, most of my tubing antennas vibrated. Some of 
them had end caps and vibrated, but rope always fixed it. I had that 
problem with Wilson yagis, and everything else.

I don't think that means the antenna is a poor design...not when it 
is a problem so easily cured.

73, Tom W8JI 
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