At 07:28 PM 6/10/03 +0000, firstname.lastname@example.org 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
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