As per wikipedia explanation. Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location.The signals are received via an outdoor parabolic antenna commonly referred to as a satellite dish and a low-noise block downconverter.

A satellite receiver then decodes the desired TV programs for viewing on a television set. Receivers can be external set-top boxes, or a built-in television tuner. Satellite television provides a wide range of channels and services. It is usually the only television available in many remote geographic areas without terrestrial television or cable television service.  

For some Satellite signal transmission, for those project, which satellite dish and headend distance over 100meters away, we can use an Satellite Optical transmitter, to convert the RF signal to fiber signal first, then use the Satellite optical receiver to convert fiber signal to RF signal again, and send the RF(radio frequency) signal to headend.