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Topband: Coax VF

To: Top Band <topband@contesting.com>
Subject: Topband: Coax VF
From: "Mike(W5UC) & Kathy(K5MWH)" <w5uc@suddenlink.net>
Date: Wed, 28 Mar 2007 08:59:50 -0500
List-post: <mailto:topband@contesting.com>
>Good Morning Gents:
>
>While researching the topic of receiving arrays it seems that I read 
>in ON4UN a rather ominous recommendation that foam dielectric be 
>avoided for use as phasing lines, the reason being that the VF does 
>not remain constant with time & temperature. He recommended using 
>only solid dielectric coax for that purpose.  I know this isn't what 
>you wanted to hear, but it may save you a lot of grief down the 
>road.  I will try to find the exact paragraph in the latest ON4UN book.
>
>73,
>Mike, W5UC

"age & treachery will overcome youth & skill"
http://www.suddenlink.net/pages/w5uc/ 
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