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Re: AT3032 matching & Telinga questions

Subject: Re: AT3032 matching & Telinga questions
From: "John Tudor" jtudor2005
Date: Wed Apr 2, 2008 2:51 am ((PDT))
Measure the diametre of the dish.
Lay a ruler across the dish and measure the depth in the centre

The formula for finding the focus of a Parabloa is as follows

(Dia Squared)/(4 x Depth)

Example. Dish is 1200mm in dia (1200 Squared is 1,440,000)

Depth is 600 mm deep at the centre (4 X 600 =3D 2,400)

1,440,000 / 2400 =3D 600

So the focus is 600 mm out from the centre

Fine tune it from there




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