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Re: [TowerTalk] Birds and PVC on Antennas

Subject: Re: [TowerTalk] Birds and PVC on Antennas
From: Rolf Moberg <>
Date: Fri, 28 Jul 2006 13:52:45 +0300
List-post: <> wrote:
> How about putting some slightly oversize PVC tubing  over the elements? 
> They'd NEVER be able to perch on that antenna - they'll just  roll off!

You should never install PVC to your antenna systems. PVC and RF field 
"are not friends", even some US manufacturers (SteppIR) uses PVC in 
amateur antennas. I cannot explain is it extra loss due to permeability 
of PVC or which magnitude it is. Maybe somebody understands this topic 


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