Re: parabolic set up

[Dan Dugan <>]

>Go outside and point it at the sun.  Have a ruler and a white sheet
>of paper.  Measure the focus globe for size and distance.  Base your
>future play on those two numbers.
>
>rich

That'll work. My method is to set up a broadband noise source--like a 
radio tuned off-station. From fifty feet away, focus the dish up-down 
and left-right for the maximum, then adjust the position of the mike 
in-out. You'll hear the focal point.

-Dan Dugan


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