Satellite Communications Connect People and Business across Sea, Land and Air
A communications satellite can be defined as an artificial satellite that relays as well as amplifies radio telecom signals via a transponder. It can create a communication channel between a source transmitter as well as a receiver at multiple locations on Earth. This type of satellite can be used for TV, telephone, internet, radio, and military applications. Based on 1st August 2020, there are 2,787 artificial satellites in the orbit of the Earth, with 1,364 of these being communications satellites, that both private and government organizations can use.
Many communications satellites are in geostationary orbit 22,236 miles above the equator. The satellite appears stationary at the same point in the sky. Hence, the satellite dish antenna of earth stations can be focused on that spot and do not have to shift to track the satellite.
The radio waves of high frequency can be used for...