FM Broadcast: Full Details

The original FM broadcast band, in the United States until 1946, was on 42 to 50 MHz with 0.2 MHz channel spacing. This band was abandoned after World War II and is now allocated to fixed, mobile, and land mobile radio services. FM is effectively short for frequency modulation. The term "Wide FM" is often used because of the amount of frequency bandwidth consumed (~500khz). The exact reception range varies around the world, but normally falls around a 50 to 200 mile range. In most of the world, the FM broadcast band is 87.5 to 108.0 Mhz. Japan is one exception, 76 to 90 MHz with 0.1 MHz channel spacing.