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Re: [TowerTalk] TowerTalk Digest, Vol 112, Issue 71

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Subject: Re: [TowerTalk] TowerTalk Digest, Vol 112, Issue 71
From: "Larry stowell" <>
Date: Mon, 23 Apr 2012 14:22:26 -0400
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If you look at the specs it says max boom length 25ft. There looks like a 
second attachment to
another leg. 

73 Larry K1ZW

Message: 6
Date: Mon, 23 Apr 2012 09:24:05 -0700
From: David Gilbert <>
Subject: Re: [TowerTalk] New ROTOR design at VISALIA DX convention
Message-ID: <>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed

Very interesting, but that side mount version bothers me rather a lot.  
No matter how strong the rotator itself may or may not be, I find it 
difficult to believe that a single leg clamp like that wouldn't simply 
twist around on the leg.  People have such problems even when using much 
larger clamping surfaces on two inch diameter masts with less leverage 
than a side mount would have.

Maybe more importantly, the potential rotational torque of a 25 sq ft 
antenna in the vertical plane (36 foot boom trying to act like a 
propeller) would be incredible ... not sure how it wouldn't bend the leg 
of the tower given the roughly seven inch span of the mount.

I really like the stackable mast clamps on the other versions, though 
... that's a pretty neat idea.  Each is independent so the clamping 
forces always add up, and if you need more area you just add more clamps.

Dave   AB7E

11/4954 - Release Date: 04/23/12


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