You must have seen a TV antenna used to receive the TV signals from the transmitting tower or from a satellite.
In communication using radio waves, an antenna in the transmitter radiates the EM waves, which travel through space and reach the receiving antenna at the other end.
As the EM wave travels away from the transmitter; the strength of the wave keeps Properties on decreasing.
Several factors influence the propagation of EM waves and the path they follow.
It is also important to understand the composition of the Earth’s atmosphere as it plays a vital role in the propagation of EM waves.