KGBB owned by Robert Adelman was first signed on in May 1990 with the transmitter located on El Paso Peak.
Owned by Robert Adelman from its launch, KRAJ aired a hot adult contemporary (hot AC) format as "103.9 The Zone" in 1991. The station first signed on in March 1990 as KRAJ, originally licensed to Johannesburg, California. The transmitter was located on El Paso Peak with an effective radiated power of 1,500 watts at a height above average terrain of 27 meters (89 ft). 
