KGBB 103.9BOBfm logo.jpg
Broadcast areaAntelope Valley
Frequency103.9 MHz
Branding103.9 Bob FM
FormatAdult hits
AffiliationsBob FM
OwnerAdelman Broadcasting, Inc.
First air date
March 1990 (as KRAJ)
Former call signs
KRAJ (1988–1998)
KEDD (1998–2007)
Technical information
Facility ID457
ERP6,000 watts
HAAT100 meters (330 ft)
Transmitter coordinates
34°58′45″N 118°10′02″W / 34.97917°N 118.16722°W / 34.97917; -118.16722
WebcastListen Live

KGBB (103.9 FM, "Bob FM") is a commercial radio station that is licensed to Edwards, California and serves the Antelope Valley area. The station is owned by Adelman Broadcasting, Inc. and broadcasts an adult hits format under the "Bob FM" moniker.


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).[1] Owned by Robert Adelman from its launch, KRAJ aired a hot adult contemporary (hot AC) format as "103.9 The Zone" in 1991.

In 1999, the station flipped to a regional Mexican format as "Radio Exitos" with new call letters KEDD. KRAJ's call sign and hot AC format moved to a new signal on 100.9 FM.

In 2006, the transmitter was moved from El Paso Peak to a new location adjacent to that of KTPI-FM. The format changed to adult hits as "Bob FM" shortly thereafter, and the call letters were changed to KGBB.[2]


  1. ^ "Directory of Radio Stations in the United States and Canada" (PDF). Broadcasting and Cable Market Place 1992. New Providence, New Jersey: R.R. Bowker. 1992. p. A-36. ISBN 0-8352-3178-X. ISSN 0000-1384. LCCN 71-649524. Retrieved January 11, 2019.
  2. ^ "Call Sign History". FCC Media Bureau CDBS Public Access Database. Federal Communications Commission.