[TowerTalk] GUYS and COAX

[JamesMNelson]

My two cents worth.

 Cut the sheath back and see what color the copper shield is. Then cut the
shield and the dielectric back and see what the center looks like. You
should be able to cut these three items so that they look like door steps
and you can compare the inter and outer copper. See Below.

EX.

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Maybe this will make sense and turn out correctly. If they are both gold and
close to the same color then you should be ok. I would start by cutting off
the first 10 feet, striping back and taking a look. The center of 7/8"
should be hollow so you may have had some migration there, but if this is
the new type of Andrews (The outer are rings and not cork screw) you should
be ok once you get to the point that the copper is gold. Maybe this rambling
makes some sort of sense and helps. Any questions drop me a line. I will see
if I can help.

Thanks,
 
 
james//
 
 
James M. Nelson
KE4GWW


-----Original Message-----
From: towertalk-bounces at contesting.com
[mailto:towertalk-bounces at contesting.com] On Behalf Of StellarCAT
Sent: Thursday, September 22, 2005 2:21 PM
To: tower
Subject: [TowerTalk] GUYS and COAX

I see - i understand. Thanks for the clarification. I was not being as
defensive (ok - a little) with
the statement as I was making sure others reading the thread (and
considering these issues)
were not misdirected. I 100% agree with your statement - indeed if one is
investing lots of money
- heck just installing a tower with antennas - they should at least consider
installing insulators or 
non conductive guys. 

Likewise I agree on the issue of coax. i am planning several runs of 7/8" up
to the tower rotor 
( at 40' on the tower) with a good switch/lightening arrestor set there. 

Slight change in the subject: I have a friend with a roll of this stuff
(Andrews) - maybe 1500'... he is not 
sure how old it is ... he is taking off the first 400' or so and then I will
get about 800'.... I am
assuming water would not have ingressed to this point - thoughts anyone?

g.




I did not say that using insulators was cheaping out.  My implication was 
that using straight runs of EHS where fiberglass use would improve the
pattern 
was cheaping out.  One can get pretty much the same effect using insulators.

That is standard practice on broadcast towers.
.....
By the way, in my cheaping out statement I included coax.  Even more 
important than the guy wire is the choice of a good quality coax.  I wish I
had a 
dollar for each guy I met at a hamfest with a roll of used no-name brand
coax of 
RG8 or worse yet RG58, that he was going to use on his HF, or even worse
yet, 2 
meter setup.

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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