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Re: Re: Still about parabolic dishes

Subject: Re: Re: Still about parabolic dishes
From: "Jim Morgan" <>
Date: Tue, 2 Dec 2003 15:21:32 -0700
Daniel,

If you want an inexpensive good homemade porabola, try a segmented design.
There are many ways to approach a segmented design and the only limit  is
your imagination.

Corrugated cardboard strips with one edge cut into the shape of your desired
porabola and glued onto a circular cardboard backing could form the base.
Then flexible pie shaped sheet metal strips glued to the surface of the
parabolic cardboard would form the reflecting surface.

This would not form an exact parabola but it would focus most of the sound
at your desired point.

Coat the cardboard with a waterproof coating, mount your mic and start
recording.

Will be happy to try and answer any question you may have.

Jim Morgan
Prescott, AZ





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