Sean,
Take a look at 4-way guying. As long as the angle between any two
adjacent guys does not exceed 120 degrees (3-way guying "standard"), you
can get a lot more "bite" with four guys. With three-way guying on a
rectangular lot such as yours, you must locate the tower at a location
that is not centered on the lot. With 4-way guying you can center the
tower. For instance, with the tower in the center of a rectangular lot,
the angle between the guys is 60, 120, 60, and 120 degrees. In effect,
you are doing three-way guying, but replacing one of the guy wires with
two that are spaced 120 degrees from each other. I had a 100' Rohn 25 up
safely on a lot that was only 66' wide, using this scheme.
Good luck! 73, Jay
w6go@netcom.com
> My lot (105' x 310') will accommodate up to 80' of tower guyed at 80%
> "by the book". What compensation would I have to make if I were to
> sneak it up to 90 or 100' (72 and 65%) ? Would the extra 10 or 20
> feet be worth it?
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