Radio Broadcasting

Broadcasting is the simultaneous transmission of the same message to multiple recipients. Radio broadcasting is a one-way wireless transmission of sound waves intended to reach a wide audience. Radio broadcasting is done through radio stations. Radio broadcasting also can be done via cable radio, satellite radio, and internet radio via streaming media on the Internet. The radio signals can be analog or digital.

There are several types of radio broadcasting. Main types of radio broadcasting are, AM and FM transmissions. Community radio, satellite radio, campus radio, commercial and non-commercial broadcasting are some other types of broadcasting. AM refers to amplitude modulation, a mode of broadcasting radio waves by varying the amplitude of the carrier signal in response to the amplitude of the signal to be transmitted. One of the advantages of AM is that its signal can be detected with simple equipment. FM refers to frequency modulation. FM stations are much more popular since higher sound fidelity and stereo broadcasting became common in this format. Satellite radio broadcasters are slowly emerging, but the enormous entry costs of space-based satellite transmitters, and restrictions on available radio spectrum licenses has restricted growth of this market.