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Topband: When is coax 'contaminated' beyond use?

To: topband@contesting.com, terry burge <ki7m@comcast.net>
Subject: Topband: When is coax 'contaminated' beyond use?
From: terry burge <ki7m@comcast.net>
Reply-to: terry burge <ki7m@comcast.net>
Date: Sun, 3 Feb 2019 19:54:54 -0800 (PST)
List-post: <mailto:topband@contesting.com>
Hi Folks,


A few years back some 9913 I was using apparently got water in the coax. I say 
this because of fluctuating SWR issues and I noted the shield when cut into was 
almost 'black'. So for my minor purpose of using spare coax for my dump power 
on an 80 meter 4-square can some of this coax be used? When I scrap the shield 
after exposing it with a knife will reveal the shinny copper again so is that 
sufficient to use some for reading dump power on my wattmeter at the shack? 
Seems if I try and get readings like what I had with the LMR-400 then it could 
be used. Coax is so expensive these days I want to use my valuable LMR-400 
elsewhere if possible. And having a convenient way of reading dump power is of 
course important too.


Terry

KI7M

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