Question

Which basic mode of communication is used in satellite communication ? What type of wave propagation is used in this mode ? Write, giving reason, the frequency range used in this mode of propagation.

Answer 1

Space wave communication is used in satellite communication. LOS Line of sight wave propagation is used in this mode. The frequency range used is 54MHz to 4.2 GHz because if the frequency of radio waves is greater than 54 MHz, then the wave cannot travel along the surface of the earth and also cannot be reflected by the ionosphere.