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Re: [TowerTalk] Overhead cables from tower to shack

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Overhead cables from tower to shack
From: Brian Alsop <alsopb@nc.rr.com>
Date: Fri, 21 Sep 2012 19:39:47 +0000
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On 9/21/2012 19:31, Gene Smar wrote:
Hans:

I agree with John G4ZTR: Don't just hang a messenger wire (what your steel wire 
is called) onto your tower and load it with coax and control cables without 
considering the sideways force this will impart on your tower, guyed or 
otherwise. It's best to go with your on-ground alternative. If you can thread 
the cables through a PVC conduit, even a conduit lying on top of the ditch, you 
get even more mechanical protection for your cables.


73 de
Gene Smar AD3F

On 09/21/12, John Lemay<john@carltonhouse.eclipse.co.uk>  wrote:

Hans



I don't feel competent to comment about lightning strikes and earthing, but
your proposal has some engineering issues:



The catenary of wire plus control cable plus coaxial cable will be heavy and
will exert a sideways pull on your mast. Under windy conditions the pull
could increase and vary. Are you sure your tower can cope with the extra
load ?



John G4ZTR





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