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A radio band is a small frequency band (a contiguous section of the range of the radio spectrum) in which channels are usually used or set aside for the same purpose. To prevent interference and allow for efficient use of the radio spectrum, similar services are allocated in bands.
English: United States radio spectrum frequency allocations chart as of January 2016. Date: 31 January 2016: Source:
In the Americas (defined as International Telecommunication Union (ITU) region 2), the FM broadcast band consists of 101 channels, each 200 kHz wide, in the frequency range from 87.8 to 108.0 MHz, with "center frequencies" running from 87.9 MHz to 107.9 MHz. For most purposes an FM station is associated with its center frequency.
WROL's history dates back to 1927 [1] and WBSO, owned by Babson College.The station moved to Boston in 1935 after a sale and became WORL. [4] During the late 1930s, WORL was the first station in Boston to adopt a popular-music format ("The 920 Club", named after the station's former frequency; the title remained even after the move to 950 on March 29, 1941) with disc jockeys spinning the tunes.
Note: Information in the chart has been superseded by the information in File:United States Frequency Allocations Chart 2016 - The Radio Spectrum.pdf, which was downloaded from the US Department of Commerce web site and archived at archive.org.
The International Telecommunication Union defines frequency allocation as being of "a given frequency band for the purpose of its use by one or more terrestrial or space radiocommunication services or the radio astronomy service under specified conditions". [2] Frequency allocation is also a special term, used in national frequency ...
During World War II, the frequencies originally assigned as channels 13 to 18 were appropriated by the U.S. military, which still uses them to this day. It was also decided to move the allocation for FM radio from the 42-50 MHz band to a larger 88-106 MHz band (later extended to the current 88-108 MHz FM band).
This was a familiar call sign in Knoxville radio, as what was then WATE (620 AM) had been known as WROL from 1930 to 1956. [ 5 ] [ 6 ] WATE unsuccessfully protested. [ 7 ] WROL was a 250-watt station until it upgraded its daytime power to 1,000 watts in 1964; at the same time, the city of license was changed from Fountain City to Knoxville in ...