Skip to main content

Posts

Showing posts from August, 2020
What is satellite  communication and how does it work  ?    #Communications satellites  are used for television, telephone, radio, internet,  and military The purpose of  communications satellites  is to relay the signal around the curve of the Earth allowing  communication  between widely separated geographical  #A communications satellite is an artificial satellite that relays and amplifies radio telecommunications signals via a transponder; it creates a communication channel between a source transmitter and a receiver at different locations on Earth. Communications satellites are used for television, telephone, radio, internet, and military applications. There are about 2,000 communications satellites in Earth's orbit, used by both private and government organizations.Many are in geostationary orbit 22,236 miles (35,785 km) above the equator, so that the satellite appears stationary at the same point in the sky, so the satellite dish antennas of ground stations can be aimed perm