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Re: [TowerTalk] Cable Ties

To: CEPitts <cpitts@ec.rr.com>, towertalk@contesting.com
Subject: Re: [TowerTalk] Cable Ties
From: KD7JYK DM09 <kd7jyk@earthlink.net>
Date: Thu, 14 Oct 2021 15:26:00 -0700
List-post: <mailto:towertalk@contesting.com>
Had hoped to be able to send a pic, OM, but the list stripped it. I'll send direct shortly.

Over some thirty years, I've tried all sorts of ways to secure cables to masts/towers, each and every way, save one, has failed, usually sooner, rather than later.

Tape, velcro, wire ties/wraps, twist-ties, wire, et cetera, et cetera... Either the tie fails, or damages the coax, which is worse.

Conditions have ranged from the glaring sun of the desert, to mountain tops, and on my property, from -25 degrees, to +124 degrees, and winds to 165+ MPH (fortunately, only once, but 60 is yearly). Rain, hail, ice, snow, dirt/rock storms, animals (usually wild horses, sometimes ringtail cats, or raccoons), you name it.

One thing I noticed was "professional" installations use clamps, something like this:

https://www.voldatech.com/products/feeder-cable-clamps/371.html

This is just an example, there are dozens of types, from small coax to feedline several inches across.

Not having a source for such things many years ago, I looked at local hardware stores to see what I could come up with to do the same job. I came across clamps like this:

https://www.homedepot.com/p/1-1-4-in-2-in-Bronze-Ground-Clamp-5-Pack-C22DBAG1R/202944396

These range in size from ~1" to several inches across. I picked up a couple dozen that can handle about a 3" pipe.

Now, looking at the pic in the above link, imagine this clamped onto your mast, or tower, using a clamp of adequate size, then, secured to each of the long screws (I use two cables on my mast), a clamp like this:

https://www.homedepot.com/p/Gardner-Bender-1-2-in-Rubber-Insulated-Clamp-2-Pack-PPR-1550/202875615

The coax is secured within the clamp above, and protected, the clamp above, secured to the ground clamp, onto the tower.

Additionally, using the bronze ground clamp as a cable clamp, the single-hole side, the part intended for a ground wire, holds wire rope for lightning protection. It's a 3-way clamp, coax on one side, lighting protection on the other! I have two cables that run up the mast, securely, and isolated, and an air terminal wire rope coming down, held by the same clamp, to a 10' 3/4 ground rod.

Best yet, the parts are common, inexpensive, and the only thing that has held up, so far, about a decade, in the worst conditions, without much of a thought, and a casual glance once or twice a year. So far, NO issues.

I'll send some pics direct shortly, let me know what you think.

Kurt


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