Question

state in brief how artifical satellites are used in transmitting televison programe over large distance

Answer 1

Artificial satellites help in long distance transmission of television programs. The picture or sound to be transmitted is first converted into electrical signals. They are then converted into a special type of waves and transmitted in air from a transmitting antenna so as to reach the artificial satellite. The signals received are then amplified and re-transmitted by the instruments fitted on the satellite. The antennas fixed in a number of stations on the earth including those of cable operators receive the signals and re-transmit them. The television sets receive the signals and reconvert them in the form of images and sound.

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