I have 3 TIC rings on my Rohn 45 tower. THey have been up for 10 or more
years, and give good service. Always turn.
But, I have had a problem from time-to-time with the one holding
the largest antenna - 48 foot boom 5 el 20m and 2 el Cushcraft 40m. The ring
(single motor) seems to turn every time. It holds its position even in the
strongest winds.
BUT, from time to time, generally during a contest, it seems to slip position.
That is, when I start the contest I turn it
SE to use for the Caribbean multipliers. Then next morning,
I turn it NE for Europe to stack with the top 20m beam.
Repeat the second day. When I go out Monday morning
after the contest, I find the antenna, instead of pointing NE,
is pointing roughly East. That is, it has moved somewhere
between 45 and 60 degrees! I can't see the antenna
tower from the shack, and of course, generally the
time I need to turn it is dark, so probably couldn't
see anything anyway.
I can leave the antenna parked there for months, and it
never moves. The antenna NEVER moves (slips) in the other
direction. The TIC ring uses a pot to keep track of direction.
Any ideas?
Terry N4TZ
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