[TowerTalk] LMR 400

[Mel Whitten]

I agree Bill, something is wrong.  My experience has been just the opposite 
with 8 LMR400UF cables making up the rotator loop for HF and VHF/UHF 
antennas. These have been in use 3 years. I've seen no degradation or change 
in SWR.  Maybe the UV is getting to yours?
Perhpas, you could send one of the defective jumpers to Times and let them 
look at it in their lab.  I think many would be interested in what is 
causing the failures.

Mel, K0PFX
St Louis


----- Original Message ----- 
From: <Cqtestk4xs at aol.com>
To: <TOWERTALK at contesting.com>
Sent: Friday, November 04, 2005 12:22 PM
Subject: [TowerTalk] LMR 400


> Well, this is getting old.  I am in the process of replacing my fix or 
> sixth
> jumper made of LMR400 flexible.  It has failed on three different towers.
> NEVER will I use this stuff again.  IT IS GARBAGE.
>
> The black jacket on most of the failures has turned slightly gooey, and
> cracked, allowing moisture to ruin the rest of the line.  The part that 
> cracked was
> not even under any movement.  It was simply taped to the boom, and where
> exposed it cracked.
>
> I have had no problems with the regular LMR400 or any of the other coax I
> have used.
>
> The stuff was installed in 1998 and looks like cheap coax installed in the
> 60s.
>
> I'm going to call Times and see what kind of reaction I get.
>
> Bill K4XS
> _______________________________________________
>
> 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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