Preface : which is carried out through the Communication Satellite. That communication is called satellite communication. TV signals are uploaded for broadcast to a satellite in the Earth's equator at a geostationary orbit. Using a satellite will cover the largest area on Earth for broadcast. All the disadvantages of direct transmission are compensated by satellite broadcasting.
Teams to broadcast TV signal C band frequency FM Are modulated. This frequency is known as uplink frequency. These frequencies range from 5900 to 6400 MHz. This uplink frequency acts as a satellite repeater translator to downlink frequencies 3700 to 4200 MHz and sends the transmitted signal back to Earth. The uplink beam is sharp and pointed to the satellite, while the down link beam is wide and the area is rigid. By means of a downlink signal fixed at different locations. The TV signal is obtained. And TV is displayed on the screen. This is a general theory of satellite broadcasting.
The downlink station is called Satellite Receive Terminal. These satellite receivers can be mounted anywhere in the Terminal Coverage area. E.g. Satellite receiver terminals can be installed anywhere in India for Satellite in Insat Series. Satellite receiver terminals are simpler and less expensive than uplink Earth stations. This receiver terminal has the following components.
1. Parabolic Dish Antenna (PDA) and Feed Horn.
2. TVRO (Television Receiving Only) LNBC Low Noise Block Down Converters in Electronics) and TVRO Receiver.
3. Monitoring or distribution system.
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