[TowerTalk] Second And Third Age Old Questions

[Hardy Landskov]

At 06:22 PM 9/23/2007 -0700, Jeffrey Okamitsu wrote:
>Ok.  Here's two more for you:
>
>1) What's the best way to route cable at the top of
>the tower to allow rotation of the antenna/mast
>without damaging the cable and/or getting it hung up
>on something?  FYI, I'm talking about 140 feet of Rohn
>45G with the top guy at the 135 foot level.  In the
>past I've wound the cable around the mast and let it
>unwind as the mast turns.  Is this a best practice?

I lay about a turn and a half around the thrust bearing. Secure the top one
foot above on the mast, the bottom through a compression clamp, the type
with the rubber inserts. The coax only needs to unwind 180 degerrs in each
direction, so it's not under a lot of twist.


>2) What's the best way to route cable when using a Tic
>Ring?  FYI.  the rings are just above guy attachment
>points.
>
This has been a tough one for me. The worst possible arrangement.  The coax
will hang up on the guy wires; and if too close will get into the Tic Ring.
I had both happen. It generally takes a precise length of coax so that
neither happens. You have to experiment.

GL N7RT