Satellite TV Guide
There are more than 60 satellites available from Europe. Each satellite has one or more transponders; every transponder transmits towards particular area of the Earth. Therefore, to be able to pick up signal from satellite which covers your area you normally need small size satellite antenna. As further you are from the satellite beam spot as larger satellite antenna you going to need to gain strong enough signal.
Most of the satellite services now days are Digital, but there are still some satellites transmitting analogue signals. Furthermore, some satellite providers are already transmitting 4K services.