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[TowerTalk] Tower Surveying Tools?

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Subject: [TowerTalk] Tower Surveying Tools?
From: (Pete Smith)
Date: Tue Jun 10 15:43:37 2003
At 07:28 PM 6/10/03 +0000, wrote:
>My Rohn catalog dated 1987 states that anchor alignment has a tolerance of
>plus or minus 0.1 degrees.  If you have a 100' tower with an 80' guy radius
>your anchor location would have a tolerance of plus or minus 1 11/16 inches.
>You certainly could not site a tower leg this close by eye.  In fact it
>would be difficult even with a transit.
>I have used various methods already mentioned and my towers are still
>standing, although probably not in tolerance.  For one house with an outside
>fence I made an AutoCAD drawing and measured the anchor locations from the
>walls.  I have also installed stakes at some equidistant points and used
>ropes along the ground to line up the anchor.  I have also used a transit.
>Even a transit is difficult you're installing anchors for an existing tower
>because you can't set it up in the exact center.

You don't suppose it's possible that Rohn was playing CYA, do you?

73, Pete N4ZR
The World HF Contest Station Database was updated 9 May 03.
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