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Re: focal point




>hi dr dish i want to ask u a question and i hope u will answer me.
>my question is :can u give me the fraction of the dish because i want to
>make a sattelite dish so i need  this fraction to know the distance between
>the center of the dish and the feedhon?
>Huarir, UAE

Dr.Dish:


f =      r 
        --------
         4 c

which means: if you have a given dish depth of 25 cm and a diameter of 240cm 
then it looks like this

f =     120 
        ------------  =  144cm
        4 x 25
Dr.Dish (Christian Mass)
drdish@tv - the first european satellite info channel



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