<P> FM broadcasting is a method of radio broadcasting using frequency modulation (FM) technology . Invented in 1933 by American engineer Edwin Armstrong, it is used worldwide to provide high - fidelity sound over broadcast radio . FM broadcasting is capable of better sound quality than AM broadcasting, the chief competing radio broadcasting technology, so it is used for most music broadcasts . FM radio stations use the VHF frequencies . The term "FM band" describes the frequency band in a given country which is dedicated to FM broadcasting . </P> <P> Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum . Usually 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions: </P> <Ul> <Li> 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 . </Li> <Li> In Japan, the band 76--95 MHz is used . </Li> </Ul>

What is the lowest # on the fm dial