FM broadcasting is a broadcasting technology pioneered by Edwin
Howard Armstrong which uses frequency modulation (FM) to provide
high-fidelity sound over broadcast radio. The term "FM band"
describes the "frequency band in which FM is used for
broadcasting". This term is slightly misleading, since it
equates a modulation method with a range of frequencies.
Broadcast bands  - In the former Soviet republics, and some
former Eastern Bloc countries, the older 65–74 MHz band is also
used. Assigned frequencies are at intervals of 30 kHz. This
band, sometimes referred to as the OIRT band, is slowly being
phased out in many countries. In those countries the 87.5–108.0
MHz band is referred to as the CCIR band. - In Japan, the band
76–90 MHz is used. The frequency of an FM broadcast station
(more strictly its assigned nominal centre frequency) is usually
an exact multiple of 100 kHz. In most of the Americas and the
Caribbean, only odd multiples are used. In some parts of Europe,
Greenland and Africa, only even multiple