Re: [TowerTalk] Replacing coax question

["Alan C. Zack" <k7acz@cox.net>]

I think I'd be more worried about moisture getting into the PL-259 / 
barrel connection splice hanging out in the open than insertion loss.

Tom Martin wrote:

> I am replacing a 90' length of RG8 water damaged coax to my 40 meter beam.  I have LMR 400 for the main run up the tower but want to use a RG8 section for the rotator loop.  There are two ways to do this. First, a 14' section of RG8 from the feed point of the beam with one PL259 and one barrel connector to join the LMR.  Secondly, a 10' section of LMR and PL259 to a barrel connector and a 4' section of RG8 for the loop to join the LMR that goes down 80' to the antenna relay box at the base of the tower.  This configuration would require 4 PL259's and two barrel connectors.  I want to avoid the many possible problem areas with the multiple connections.  I think that I have answered my own question but wasn't sure if adding that much RG8 to the run would offset the benefit of the LMR 400.  I suppose on 40 meters the loss would be negligible.  Am I correct?
>
> 73,
>
> Tom W8JWN
>
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--
__________________________________________________________________________ 

Alan Zack
Amateur Radio Station K7ACZ
Las Vegas, Nevada, USA
Quality Engineer, The Boeing Company, Retired
Aviation Chief Warrant Officer, U.S. Coast Guard, Retired
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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 and ask for Sherman, W2FLA.

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