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However, the company made a key advance in early 1924 when it began selling the first superheterodyne receivers, whose high level of performance increased the brand's reputation and popularity. RCA was the exclusive manufacturer of superheterodyne radio sets until 1930.
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 ...
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.
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]
1897: Although Australia's first officially recognised broadcast was made in 1906, some sources claim that there were transmissions in Australia in 1897, either conducted solely by Professor William Henry Bragg of the University of Adelaide [31] [32] or by Prof. Bragg in conjunction with G.W. Selby of Melbourne. [33]
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
This made the First Baptist Church Broadcast the third longest-running program in broadcasting (The Grand Ole Opry (November 28, 1925) on WSM is longest-running show and Music and the Spoken Word (July 15, 1929) on KSL are the second longest). First Baptist ceased the broadcasts after 73 years. On October 7, 1936, KFRO powered up from 100 watts ...
The first such “radio toll station” was WBAY (later consolidated with WEAF) in New York City and it went into operation on July 25, 1922. [ 4 ] Westinghouse, GE, RCA, and AT&T had all become quite successful, so much so that the federal government became interested in their dominance of the broadcasting world.