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Re: [TowerTalk] tower identification - rotator plate - more, data and pi

To: towertalk@contesting.com
Subject: Re: [TowerTalk] tower identification - rotator plate - more, data and pics
From: Howard Hoyt <hhoyt@mebtel.net>
Date: Sun, 10 Jan 2016 18:46:52 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Hi Chris,

Depending on the exact leg diameters and center-to-center spacing it could be either a Rohn SSV or a SSV variant. You will be able to verify one way or the other by measuring the leg diameters and center-to-center spacings as well as the orientation of the bolt holes in the flange plates. Also, P/Ns are stamped on the legs and brace plates. Here are the specs for Rohn's stock SSV sections:

http://www.rohnnet.com/rohn-ssv-self-supporting-towers

Rohn made some SSV variants for Motorola's Business Communications Division. I had the opportunity to buy one, but specifications are hard to come by, and Rohn does not give them out, for whatever reason. Their parts are not inter-mixable with the SSV series, having flange plates turned at differing angles from the SSV. The Motorola division which specified them is now gone, so that turned out to be a dead end for info as well. In general they were used to support collinear arrays or verticals with little wind loading, and if you compare the size of the cross members and leg diameters with that of the SSV, you will see they are not rated for much loading.

If it is a stock SSV, you are in better shape as far as determining load capacity and getting parts.

Good luck and 73,

Howie - WA4PSC


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