What is radio?

  • (adj): Indicating radiation or radioactivity.
    Example: "Radiochemistry"
    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:

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 a voltage at a specific frequency in ...
XESPN-AM - Recent History
... XEMMM-AM, 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 ...
Windsor, Ontario - Culture and Tourism - Media
... considered part of the Detroit television and radio market for purposes of territorial rights ... and its proximity to Toledo and Cleveland, radio and television broadcasters in Windsor are accorded a special status by the Canadian Radio-television and ... The CanCon requirements are sometimes 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 CanCon) had been the ...
Ottumwa, Iowa - Media - Radio
... Adult contemporary O-Town Communications 91.1 FM KICW Classical music / Iowa Public Radio University of Northern Iowa ...

More definitions of "radio":

  • (verb): Transmit messages via radio waves.
    Example: "He radioed for help"
  • (noun): A communication system based on broadcasting electromagnetic waves.
    Synonyms: wireless

Famous quotes containing the word radio:

    A bibulation of sports writers, a yammer of radio announcers, a guilt of umpires, an indigence of writers.
    Walter Wellesley (Red)

    Local television shows do not, in general, supply make-up artists. The exception to this is Los Angeles, an unusually generous city in this regard, since they also provide this service for radio appearances.
    Fran Lebowitz (b. 1950)

    England has the most sordid literary scene I’ve ever seen. They all meet in the same pub. This guy’s writing a foreword for this person. They all have to give radio programs, they have to do all this just in order to scrape by. They’re all scratching each other’s backs.
    William Burroughs (b. 1914)