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Bookmark or Share- How does a radio convert waves into sound? - Encyclopedia BritannicaA signal--a transverse sound wave--overlays the carrier wave, forcing it to change. There are two ways radio stations modulate their carrier waves: amplitude modulation, or AM, and frequency modulation, FM.
- Radio | Definition, History, & Facts | BritannicaRadio, sound communication by radio waves, usually through the transmission of music, news, and other types of programs from single broadcast stations to multitudes of individual listeners equipped with radio receivers. Learn more about the history of radio in this article.
- Guglielmo Marconi | Biography, Inventions, Radio, & FactsGuglielmo Marconi was an Italian physicist who invented a successful wireless telegraph (radio).
- Electromagnetic radiation - Radio Waves, Frequency, Wavelength | BritannicaElectromagnetic radiation - Radio Waves, Frequency, Wavelength: Radio waves are used for wireless transmission of sound messages, or information, for communication, as well as for maritime and aircraft navigation. The information is imposed on the electromagnetic carrier wave as amplitude modulation (AM) or as frequency modulation (FM) or in ...
- Radio wave | Examples, Uses, Facts, & Range | BritannicaRadio-wave communications signals travel through the air in a straight line, reflect off of clouds or layers of the ionosphere, or are relayed by satellites in space. They are used in standard broadcast radio and television , shortwave radio , navigation and air-traffic control , cellular telephony , and even remote-controlled toys.
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