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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.
Following is a list of FCC-licensed community radio stations in the United States, including both full-power and low-power non-commercial educational services. The list is divided into two sections: The list is divided into two sections:
On May 24, 1940, the FCC had announced the establishment, effective January 1, 1941, of an FM radio band operating on 40 channels spanning 42–50 MHz, with the first five channels (42.1 to 42.9 MHz) reserved for educational stations, and the other 35 (43.1 to 49.9 MHz) available for commercial operation. [1]
The FM Non-Duplication Rule was adopted by the U.S. Federal Communications Commission (FCC) on July 1, 1964, after a year's consideration. It limited holders of FM licenses in cities of more than 100,000 who also held AM licenses to simulcasting no more than 50 percent of their AM signal on the FM station.
The following is a list of FCC-licensed radio stations in the U.S. state of Oklahoma, which can be sorted by their call signs, frequencies, cities of license, licensees, and programming formats. List of radio stations
In Mexico, AM radio stations use XE call signs (such as XEW-AM), while the majority of FM radio and television stations use XH. Broadcast callsigns are normally four or five letters in length, plus the -FM or -TV suffix where applicable, though several older stations have only three letters. The longest callsign is six letters, plus suffix ...
The FCC commonly refers to these stations as "FM6" operations. All of these FM transmissions are authorized for operation on a center frequency of 87.75 MHz. First devised in 2002, until July 14, 2021 most of these stations employed the original NTSC-M analog TV transmission standard.
The FCC "History Cards" were collections of 5 by 8 inch (12.7 by 20.3 cm) index cards, maintained for each AM, FM and TV broadcasting station. They were introduced in early 1927, at the time of the establishment of the Federal Radio Commission (FRC), and were taken over by the Federal Communications Commission (FCC) after its formation in 1934.