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[TowerTalk] coax ID help

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Subject: [TowerTalk] coax ID help
From: (kb9yku)
Date: Sat May 31 08:55:06 2003
sounds like cable tv hard line  the kind used on the light poles
if so  some avt  hams mite use it on there  910 mhz run
as most use 75 ohm for that use and rg6 sold by the home stores has like 
4-6 db lose at 910 mhz

sorry if i'm long winded
At 09:15 PM 5/28/03 -0700, Jeff Stai WK6I wrote:

>hi - I have two cables to identify and to evaluate whether they are worth
>keeping and using (helping a friend deal with the estate of an SK):
>1. Two rolls of cable marked RG218U, one roll is "Alpha Wire 92194" the
>other is "Plastoid 77314". I gather from Googling that the 218 is a 50ohm
>coax (good) with high dielectric breakdown voltage (11kv). It's nice and fat
>(0.880", according to the charts), with a solid center conductor and a solid
>dielectric - however, it has a braided shield and the roll has been sitting
>out in the elements for an indeterminate time (perhaps years). Is there any
>chance this stuff is still usable and reliable?
>2. One roll of cable with no markings at all. It appears to be a .500"
>cable, with solid aluminum center conductor, solid dielectric, and a -solid-
>aluminum shield. The odd thing is that it is 'paired' with what seems to be
>a steel wire in a single plastic jacket - the steel wire is offset .3-.5"
>from the coax - it kinda looks like twinlead, but one of the leads is on
>steroids...;-) This cable has also been out in the elements for some length
>of time. Any idea what it is and if it would be useful to someone?
>thanks very much for your help! - 73 - jeff wk6i
>Jeff Stai     
>Twisted Oak Winery
>Rocketry Org. of CA
>Amateur Radio           WK6I
>See:  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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