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Re: [TowerTalk] Cable question

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Subject: Re: [TowerTalk] Cable question
From: "Mike" <noddy1211@sbcglobal.net>
Date: Fri, 12 Sep 2008 15:08:33 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
I remember seeing cable looking and labeled like that stacked up behind one
our Head Ends when I worked for the cable company, no one knew what it was
then, that's why it was rotting in the sun unused.  The only thing that
people seemed sure of was that it was 75 Ohms.

Mike, K6BR

-----Original Message-----


Looking for some assistance identifying some cable.  The only writing on the
jacket 
is 1996 COMMSCOPE.

It's about 7/8 diameter, copper center conducter, a fairly stiff foam (I
think) 
dialectric and a full aluminum shielding (not braid).

I called Commscope and at first the tech thought it would be 50-ohm cable
but all 
their 50-ohm stuff with the above characteristics has more writting on the
jacket.  
So he thinks its probably more likely to be CATV cable at 75-Ohms.  Probably
has a 
loss of about 1.8-2 dB per 100ft at 2000 MHz.  That's gotta be pretty low
for HF/6M!

Anyone out there familiar with this cable?  I have a run of about 150-ft
from my 
shack to my tower and wondering if it is worth it to replace the buryflex I
have in 
there now with this stuff.  I have 2 runs from shack to tower.

I'll probably get the cable pretty cheap...maybe about $25 for a couple
large 
spools but each only has maybe 150-200 ft on it.  New N connectors will cost
me 
about $40 each.  Then adapters from N to UHF.  

The cable is pretty old....1996 but has been unused and on its original
wooden 
spool and stored outside.

-------------------------
73,
Greg - AB7R
Whidbey Island WA
NA-065




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