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.

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:

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 multiples are used. In Italy, multiples of 50 kHz are used. There are other unusual and obsolete standards in some countries, including 0.001, 0.01, 0.03, 0.074, 0.5, and 0.3 MHz.

Frequency modulation (FM) is a form of modulation which conveys information over a carrier wave by varying its frequency (contrast this with amplitude modulation, in which the amplitude of the carrier is varied while its frequency remains constant). In analog applications, the instantaneous frequency of the carrier is directly proportional to the instantaneous value of the input signal. This form of modulation is commonly used in the FM broadcast band.

Kool DJ Red Alert (born Fred Crute in November 20, 1956, in Harlem, New York) is a disc jockey on 98.7 Kiss-FM, New York, and has been recognized as a hip hop pioneer. Red Alert has been noted for breaking in such acts and artists as A Tribe Called Quest, Queen Latifah, and Black Sheep.

Red, who is of Antiguan heritage, also had a small hip hop management company in the late 1980s called Red Alert Productions, which managed the careers of Native Tongues acts such as the Jungle Brothers, A Tribe Called Quest, and Monie Love. Besides Chris "Baby Chris" Lighty's Violator, in the late 1980s through 1990s, Red Alert Productions was the only major hip-hop management alternative to Russell Simmons' Rush Artist Management (which he despised) and Cold Chillin' Records' management division.

Kool DJ Red Alert appeared on New York City radio stations such as 98.7 Kiss-FM for over 11 years and worked for Hot 97 for seven years. He also hosts the mix show Article One on Youth Radio 92.5 in the Virgin Islands and has a show on the Sirius Satellite Network station Backspin.