[TowerTalk] TowerTalk Digest, Vol 112, Issue 71
Larry stowell
lclarks at nc.rr.com
Mon Apr 23 11:22:26 PDT 2012
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 <xdavid at cis-broadband.com>
Subject: Re: [TowerTalk] New ROTOR design at VISALIA DX convention
To: towertalk at contesting.com
Message-ID: <4F958225.1010501 at cis-broadband.com>
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.
73,
Dave AB7E
11/4954 - Release Date: 04/23/12
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