Dish focus

wiseguy4u

Regular Member
Messages
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0
#1
How can I find the focal point of my 2.4m prime focus dish.
Is it the manufactured centered or will I have to find
it myself. If so what is the geometric calculation
or formula? Or will I have to find it by trial and error.
 

Psychobiker

Regular Member
Messages
61
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0
My Satellite Setup
60CM Sky dish, Thomson LNB, PACE DS430N and FS Lifetime Ultra +
My Location
Ireland
#2
there is a formula. wikipedia parabolic reflector. it's something like diameter squared divided by (depthx16)
 

rolfw

Believe it when I see it Admin.
Staff member
Messages
37,670
Likes
1,279
My Satellite Setup
Technomate 5402 HD M2 Ci, DM7000s, Transparent 80cm Dish, Moteck SG2100 DiseqC motor, lots of legacy gear. Meters: Satlook Digital NIT, Promax HD Ranger+ spectrum analyser.
My Location
Berkshire
#3
The formula is HERE.
 
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