Some Satellite Questions..

kawatsu

hi, firstly would like to apologise cuz i don't know where i should be posting this, hope its in the right section..

I have some questions regarding satellites.. hope you guys will enlighten me..
(1) What are the reasons for indoor and outdoor placements of satellites systems?

(2) What are the advantages and disadvantages of Cassegrain antenna?(tried to search for info on the net, but cant find.. )

(3) When to use "Automatic", "Manual" and "Program" tracking system??

(4) How Beamwidth and Antenna pointing accuracy related?

Thx for your help.