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David Sarnoff with the first RCA videotape recorder, 1954 RCA Television Quad head 2-inch color recorder-reproducer used at broadcast studios from the late-1960s to the early 1980s [44] In 1941, shortly before the United States entered World War II, the cornerstone was laid for a research and development facility in Princeton, New Jersey called ...
During radio's first two decades, called the ... the first commercial radio broadcast was ... a video signal representing moving images from a video camera, ...
On February 17, 1919, station 9XM at the University of Wisconsin in Madison broadcast human speech to the public at large. 9XM was first experimentally licensed in 1914, began regular Morse code transmissions in 1916, and its first music broadcast in 1917. Regularly scheduled broadcasts of voice and music began in January 1921.
Even President Warren G. Harding, whose May 1922 speech to the Washington, D.C. Chamber of Commerce was the first radio broadcast by a president, [94] had a radio installed in the White House. [95] The existence of early radio stations encouraged many young people to build their own crystal sets (with ear phones) to listen to the new technical ...
FM uses frequency modulation of the radio wave to minimize static and interference from electrical equipment and the atmosphere, in the audio program. 1937: W1XOJ, the first experimental FM radio station after Armstrong's W2XMN, was granted a construction permit by the U.S. Federal Communications Commission (FCC).
Made the first radiophonic broadcast in Brazil, but the first radio officially acknowledged was Rádio Sociedade do Rio de Janeiro (actually, Rádio MEC). Also, it is one of the oldest stations in the world. [List entry too long] First Australian experiment in the broadcast of music: n/a AWA; Ernest Fisk; Sydney: 8 August 1919 AM [11]
Milestones in radio: the first half century (1895–1945). The UNESCO courier (February 1997), p. 16–21; Radio Review/Radio Listeners Guide (1925–1929), Broadcasting Yearbook (1935–2010), World Radio TV Handbook (1947–) Berg, Jerome S. The early shortwave stations: a broadcasting history through 1945 (2013) radioheritage.net
Guglielmo Marconi The Marconi Company was formed in England in 1910. The photo shows a typical early scene, from 1906, with Marconi employee Donald Manson at right. Lee DeForest broadcasting Columbia phonograph records on pioneering New York station 2XG, in 1916 [1] The British Broadcasting Corporation's landmark and iconic London headquarters, Broadcasting House, opened in 1932.