My Media Timeline By iloveyousomuchwuwu 1990 Radio I used radio to entertain myself, listening to music. Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 Hertz (Hz) and 300 gigahertz (GHz).
I used radio to entertain myself, listening to music. Radio is the technology of communicating using radio waves. Radio waves are electromagnetic waves of frequency between 3 Hertz (Hz) and 300 gigahertz (GHz).