Thread: Parabolic Dish Templates made easy
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Old 06-20-2005   #12 (permalink)
Airstreamer
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Join Date: Nov 2004
Location: A little North of Reason
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Quote:
Originally Posted by wrzwaldo
I didn't think the dish 500 was round. I knew the single lookers were round but I think mine (dish 500 dish) is slightly elongated. Now that I think about it I think it is round just a larger diameter. I have just found some info that says the "mostly-round 20inch DISH 500 reflector". You may have some serious math to do.
Most of the DSS and Primestar dishes are an "offset focus".
Take a look at:

http://www.wwc.edu/~frohro/Airport/P...Primestar.html

Edit:

Dish 500 is a multi focal point dish. Two LNBs side by side at the focus point(s) of the two birds it's pointed at. Large multpoint dishes have a parabolic curve in the vertical plane, and spherical in the horizontal.
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Last edited by Airstreamer : 06-20-2005 at 03:40 PM.
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