Frequency Modulation, FM When the audio signal is modulated onto the radio frequency carrier, the new radio frequency signal moves up and down in frequency. The amount by which the signal moves up and down is important. It is known as the deviation and is normally quoted as the number of kilohertz deviation.

A communication study is a field which deals with human communication in which symbols are shared to create meaning. This field comprises of wide range of topics such as mass communication, face to face communication etc. Communication studies coordinate parts of both social sciences and the humanities.

Frequency modulation is widely used on frequencies above 30 MHz, and it is particularly well known for its use for VHF FM broadcasting. Although it may not be quite as straightforward as amplitude modulation, nevertheless frequency modulation, FM, offers some distinct advantages.

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