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
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.
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