In broadcast engineering, a remote broadcast (usually just called a remote or a live remote, or in news parlance, a live shot) is broadcasting done from a location away from a formal television or radio studio and is considered an electronic field production (EFP). A remote pickup unit (RPU) is usually used to transmit the Sound and/or video back to the broadcast station, where it joins the normal airchain. Other methods include , and even regular telephone lines if necessary.
Nils T. Granlund cited the 1925 WHN airing of Senator Jimmy Walker's announcement of his New York City mayoral candidacy through a remote broadcast from the New York Press Club as the first such remote link for a political forum. Blondes, Brunettes, and Bullets; Granlund, Nils T.;Van Rees Press, New York, 1957; Page 102.
In Latin America on 27 October 1920, Dr Sussini made the first remote transmission in Argentina from the theatre El Coliseo in Buenos Aires. In Mexico on 27 September 1921, Adolfo Gomez Fernandez made a transmission from the Teatro Ideal, Mexico DFRadio World Magazine, edited in USA, 2 January 2002, page 15
The very first live remote broadcast to the nation was by the Canadian Broadcasting Corporation in 1938 when Frank Willis reported on the Moose River Gold Mine disaster in Nova Scotia http://archives.cbc.ca/economy_business/natural_resources/clips/3860/
On 11 June 1955, NBC, The National Broadcasting Company, provided the 1st live remote broadcast to the nation from Niagara Falls, New York.Buffalo Evening News, Buffalo, NY, 11 June 1955
Originally, analog audio broadcasts were sent through , which, although low quality, were found to be acceptable for voice broadcasts. Later, frequency extenders were developed that used additional lines, shifting higher treble audio frequencies down on one end and back up on the other, providing a reasonable reproduction of the original sound. Currently, digital lines, such as ISDN or DSL, are used to send compressed digital audio back to the studio. In addition, modern remote pickup units have become extremely portable and can transmit single-channel monaural FM broadcasting-quality audio over regular telephone lines using built-in modems and advanced compression algorithms (MPEG-4, etc.). See POTS codec.
To get to the scene quickly, a live remote may be done from a helicopter.
Live television remotes may often be used in a manner similar to radio remotes (and vice versa) as well.
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