[TowerTalk] Rotor Loop

[Rick Karlquist]

Gene Fuller wrote:
> Hi Glen -
>
> I just set it up so the bottom end was secured to the top of the tower
> with
> the bundle leading towards the mast and the top end fastened to about the
> center of the boom or just below the boom on the mast.  I set it up with
> about four moderately tight turns and then rotate back two turns and
> consider that as the "center of rotation" leaving me free to go at least a
> half or three quarters of revolution in either direction. Another thing to
> watch out for is that when "unwound" a couple of turns there is nothing on
> the top of the tower that the loop will catch on when it tightens up.

When I did this, I realized that I needed 2 or 3 feet of gratuitous
mast length so that the loops wouldn't be falling onto the top of the
tower.  Otherwise, I would have used just enough mast to get
the antenna to clear the tower.  I went to a double strength mast
to allow having the MonstIR up that high without bending the mast.
I think this is the main disadvantage of this rotor loop method.
With a 106 foot tower, the last thing I needed was an additional 3 feet of
height due to the mast.  However, I could not think of a better way to do
it, except maybe mount a big plate on top of the tower for the
pile of coax to rest on out of harms way.

Rick N6RK