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Radio is the technology of communicating using radio waves. ... Radio waves are electromagnetic waves of frequency between 3 hertz (Hz) and 300 gigahertz (GHz).
Radio is a 2003 American semi-biographical sports drama film directed by Mike Tollin, and inspired by the 1996 Sports Illustrated article "Someone to Lean On" ...
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Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, ...
FM broadcasting is a method of radio broadcasting that uses frequency modulation (FM) of the radio broadcast carrier wave. Invented in 1933 by American ...