[TowerTalk] Rotor Loop

[Gene Fuller]

Hi Rick -

I wonder if in a case like yours you couldn't have attach the bundle two or 
three feet out from the mast, on the lowest boom, and on the tower, down a 
few feet from the top and let it coil around the tower.  If there're more 
cables going  up further up the mast, just bring the rest of the bundle back 
along the number one boom and up the mast to the next antenna. If there are 
guys on the top of the tower, just let the bundle drop from the boom and 
rest on them.

73's,

Gene / W2LU


----- Original Message ----- 
From: "Rick Karlquist" <richard at karlquist.com>
To: "Gene Fuller" <w2lu at rochester.rr.com>
Cc: <towertalk at contesting.com>; "KD0Q-Glenn" <kd0q at traer.net>
Sent: Tuesday, October 09, 2012 8:28 PM
Subject: Re: [TowerTalk] Rotor Loop


> 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
>
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