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[TowerTalk] Wxproofing rotator connector & Orion mast clamp

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Subject: [TowerTalk] Wxproofing rotator connector & Orion mast clamp
From: (
Date: Sat May 31 09:34:15 2003
In a message dated 5/31/03 5:26:27 AM Pacific Daylight Time, writes:

> The best solution I have found while using 3 Orion -2800 rotators is to cut 
>  the connector off the end coming out of the rotator and use wire nuts to 
>  connect to the cable into the radio room.

    Good, simple solution. I use the crimp butt connector technique myself.

    Weatherproofing the large connector joint requires special handling 
because of its size and transition from small wire to big connector to small 
Wrap it with several layers of Scotch 33 or 88 tape; add a layer of vapor 
wrap; wrap it again with several layers of tape; then paint the whole thing 
Liquid Electrical Tape or clear acrylic spray paint to seal it. ScotchKote can 
be used but it and the LET both dry out and flake off after awhile but can be 
renewed periodically. 

    Speaking of Orion rotators, does anyone have a cure for the mast clamp 
from loosening up? I've installed a bunch of these over the years and virtually 
100% of them have loosened up with the antenna/mast turning in the wind. I've 
started pinning the mast which helps somewhat but it doesn't prevent the 
clamps from loosening up. 

    I'm pretty sure that what's happening is that the long bolts are 
stretching and I don't have a cure for that. Any help appreciated.

Steve     K7LXC 
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