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Consisted of 27 stations (3 owned and operated and up to 24 "phantom stations" – time leased on affiliated radio stations. WEAF chain: Broadcasting Company of America: Northeast and Midwest United States 1923–1926 Regional network of AT&T-owned radio stations with New York City radio station WEAF as its hub.
Some FM stations became known for their experimentation; with early freeform stations evolving into progressive rock, the first radio format designed specifically to showcase rock music. By the 1980s FM radio (aided by the development of smaller portable radios and " Walkman " headsets) was dominating music programming.
Radio stations in United States have evolved since their early twentieth-century origins. In 1920 8MK started operations in Detroit; after it, thousands of private and public radio have operated in the United States.
After the war, numerous radio stations were born in the United States and set the standard for later radio programs. The first radio news program was broadcast on August 31, 1920, on the station 8MK in Detroit; owned by The Detroit News, the station covered local election results.
In the United States, FM broadcasting stations currently are assigned to 101 channels, designated 87.9 to 107.9 MHz, within a 20.2 MHz-wide frequency band, spanning 87.8–108.0 MHz. In the 1930s investigations were begun into establishing radio stations transmitting on "Very High Frequency" (VHF) assignments above 30 MHz.
In the 1950s and 60s, WANN Radio in Annapolis became a beacon for Black listeners by playing music and broadcasting voices that other mainstream stations ignored.
Early pioneers of radio science and technology in the United States including Charles Steinmetz, David Sarnoff, Irving Langmuir and Alfred Goldsmith in 1921, photographed next to the antenna feed wires of the New Brunswick Marconi Station, one of the first transatlantic radio links.
13 August – The United States Congress passes the Radio Act of 1912, "An Act to regulate radio communication", requiring that all radio stations be licensed. [ 1 ] 9YV, an experimental station operated by Kansas State University in Manhattan, Kansas , becomes the first radio station in the United States to offer a regularly-scheduled daily ...