Thanks, Wayne
I'll check out the height of the drive gear next time I get up there. This
particular ring has
the sheet metal container, although I did have slippage one time with a
different ring
with the cast housing. The motor is on the SE side of the tower, and the
antenna
is usually turning from NE to SE, with the boom over the motor when point NE.
Again, something to check on next time I get up there.
Terry
________________________________
From: Wayne Kline <w3ea@hotmail.com>
Sent: Tuesday, February 18, 2014 4:18 PM
To: Zivney, Terry; towertalk@contesting.com
Subject: RE: [TowerTalk] TIC ring slipping
Tic Rings ... some swear by them some swear at them, but they are essential for
some statin configurations.
There have been an evolution of design since the concept "Polar research "
now with My Anderson SR.
Dave and Tim have some good points. With out a in-depth investigation I am
just speculating on the numerous
designs of the 1022 1032, I assume you 45 has 1022's the older design with
the sheet metal then later cast aluminum motor housings had just a little
adjustment for and aft for gear engagement, and there where three different
gear heights from
1/2" 3/4" and 1" , that gear height was to over come a BIG antenna rocking
the ring on the rollers , when it was on the opposite
side of the tower form the motor causing slippage and un- orientation to the
directional pot.
I over came a few installation with that dilemma by A making sure I had the
1" gear mother and installing the motor on the tower
face bar ( this is for east coast DX contest stations ) facing EAST .. With
the lower antenna's going fro south to north
motor side the majority of there life.
The newer design flat blade with the sliding motor with the spring and I bolt
, There problems in my experience have fallen into two categories. Water
incursion in to the sealed motor and a NOT perfect level installation and not
properly adjusted roller
Wayne W3EA
> From: 00tlzivney@bsu.edu
> To: towertalk@contesting.com
> Date: Tue, 18 Feb 2014 19:03:33 +0000
> Subject: [TowerTalk] TIC ring slipping
>
> 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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>
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