What is radio?

  • (noun): A communication system based on broadcasting electromagnetic waves.
    Synonyms: wireless
    See also — Additional definitions below

Radio

Radio is the wireless transmission of signals through free space by electromagnetic radiation of a frequency significantly below that of visible light, in the radio frequency range, from about 30 kHz to 300 GHz. These waves are called radio waves. Electromagnetic radiation travels by means of oscillating electromagnetic fields that pass through the air and the vacuum of space.

Read more about Radio.

Some articles on radio:

Ottumwa, Iowa - Media - Radio
... contemporary O-Town Communications 91.1 FM KICW Classical music / Iowa Public Radio University of Northern Iowa ...
Telecommunications In Oman - Radio
... Broadcast stations AM 3, FM 9, shortwave 2 (1999) Radios 1.4 million (1997) In April, 2008, Nokia Siemens was appointed to replace parts of the existing radio network ...
Field Strength
... In radio frequency telecommunications, field strength is the magnitude of the received electromagnetic field which will excite a receiving antenna and thereby induce ...
Windsor, Ontario - Culture and Tourism - Media
... article Media in Windsor, Ontario Windsor is considered part of the Detroit television and radio market for purposes of territorial rights ... Due to this fact, and its proximity to Toledo and Cleveland, radio and television broadcasters in Windsor are accorded a special status by the Canadian Radio-television and Telecommunications Commission ... blamed in part for the decline in popularity of Windsor radio station CKLW, a 50,000 watt AM radio station that in the late 1960s (prior to the advent of ...
XESPN-AM - Recent History
... which began broadcasts in 1965, joined ESPN Radio in late 2002, replacing XETRA, which had changed from sports radio to adult standards some months earlier ... In 2009, ESPN Radio moved to sister FM station XHMORE while XESPN joined ESPN Deportes Radio ... ESPN Deportes Radio is now available in the San Diego-Tijuana border region on XESS-AM 620 ...

More definitions of "radio":

  • (verb): Transmit messages via radio waves.
    Example: "He radioed for help"
  • (adj): Indicating radiation or radioactivity.
    Example: "Radiochemistry"

Famous quotes containing the word radio:

    Having a thirteen-year-old in the family is like having a general-admission ticket to the movies, radio and TV. You get to understand that the glittering new arts of our civilization are directed to the teen-agers, and by their suffrage they stand or fall.
    Max Lerner (b. 1902)

    Denouement to denouement, he took a personal pride in the
    certain, certain way he lived his own, private life,
    but nevertheless, they shut off his gas; nevertheless,
    the bank foreclosed; nevertheless, the landlord called;
    nevertheless, the radio broke,

    And twelve o’clock arrived just once too often,
    Kenneth Fearing (1902–1961)

    from above, thin squeaks of radio static,
    The captured fume of space foams in our ears—
    Hart Crane (1899–1932)