In a message dated 99-11-06 05:29:54 EST, n4kg@juno.com writes:
> I use two short plumb bobs at 90 degrees to each other from 
>  the tower, then sit on the ground and sight the tower against
>  the wire or string supporting the weight.  My favorite materials
>  are some #20 wire and a 5 lb window weight.
>  
>  Where there are no trees or other supports, I use a 10 ft tripod
>  with an piece of tubing taped horizontally from near the top to
>  suspend the short plumb bob.
       I use one plumb line suspended *inside* the tower and sight each leg 
edge against it. Simple, easy and works every time.
      If you've got some wind disturbing your plumbline, put the plumb in a 
bucket of water - then it won't move around. 
Cheers,   Steve   K7LXC
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