 During the 1970s, FM radio experienced a golden age of integrity programming, with disc jockeys playing what they wanted, including album cuts not designated as "singles" and lengthy progressive rock tracks.In the United States, frequency-modulated broadcasting stations operate in a frequency band extending from 87.8 MHz to 108 MHz, for a total of 20.2 MHz.It is divided into 101 channels, each 0.2 MHz wide, designated "channel 200" through "channel 300".