In a message dated 8/24/2011 7:49:28 A.M. Pacific Daylight Time,
towertalk-request@contesting.com writes:
> Should a rotator loop be constructed so that it goes +/-180 or should
it be
more like 360-720? The first reverse as it goes through the midpoint of
rotation whereas the second would just wind either tighter or looser.
There are 2 rotator loop methods. One has cable(s) coming off the mast
with 5-6 extra feet and it just hangs off the tower and follows the mast
around as it turns.
The other way is to loop the cable(s) around the bottom of the mast at
the flat top of the tower 2-3 times. The cables sit on the tower top and
allow lots of rotation. This is the way you see on ENG (electronic news
gathering) vans with pneumatic towers sticking out and the cable wrapped
around
the tower. Either way works FB.
Cheers,
Steve K7LXC
TOWER TECH
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