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1916: First regular broadcasts on 9XM (now WHA) – Wisconsin state weather, delivered in Morse Code; 1919: First clear transmission of human speech, (on 9XM) after experiments with voice (1918) and music (1917). 1920: Regular wireless broadcasts for entertainment began in Argentina, pioneered by the group around Enrique Telémaco Susini.
The FCC gave FM two boosts in the early 1960s: first by setting a technical standard for stereo broadcasts, and second by adopting the FM Non-Duplication Rule in 1964, prohibiting broadcasters with an AM and FM license in cities of more than 100,000 from transmitting more than 50% of the same programming on both stations. [16]
6 April – The first editions of PM and The World Tonight are broadcast on Radio 4. 10 April – The first broadcast of a new news and current affairs programme Analysis. 1971. No events. 1972. No events. 1973. 10 September – Newsbeat bulletins air on BBC Radio 1 for the first time. 1974. No events. 1975
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.
On September 21, 1939, radio station WJSV in Washington, D.C. made an audio recording of its entire 19-hour broadcast day. This undertaking was a collaboration between the station and the National Archives, and it was the first time that such a comprehensive recording of a radio broadcast had been made.
The New York Sports radio WFAN, first broadcast on July 1, 1987 at 1050AM replacing WHN. WFAN was the first all sports station in the United States. The station's current frequency, 660AM. was formerly known as WNBC and first transmitted on March 2, 1922. WFAN moved to 660AM at 5:30PM Eastern Time on October 7, 1988 when WNBC signed off for the ...
The subscription based audio service offers most home-team broadcasts on MLB Channels 176-189. MLB Network channel 89 will air select live games. ESPN radiocasts can be heard on channel 80 and ...
The resistance between Congress and radio broadcasting companies continued over the next couple of years. Broadcasters were banned, secretly planting microphones to listen in on proceedings, until March 1939, when more than 400 radio stations broadcast the 150th anniversary of the first session of Congress using microphones in the House Chamber.