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City of license San Diego, California
Broadcast area San Diego, California
Branding 100.7 Jack FM
Slogan Playing What We Want
Frequency 100.7 (MHz)
First air date September 21, 1959
Format Modern Adult Contemporary
ERP 30,000 watts
HAAT 189 meters
Class B
Facility ID 42117
Callsign meaning Derived from KFMB (AM)
Owner Midwest Television
Sister stations KFMB (AM)
Webcast Listen Live (Stream only works within San Diego)
Website sandiegojack.com

KFMB-FM is a commercial radio station located in San Diego, California, broadcasting on 100.7 FM. KFMB-FM airs an adult hits music format branded as "Jack FM". It shares studios with its sister television station KFMB-TV (channel 8) and radio station KFMB (760 AM) in the Kearny Mesa section of San Diego. KFMB-FM's transmitter is in La Jolla.


What eventually became KFMB FM began testing in 1950 from the North Park Theater on Adams Avenue. It finally signed on for commercial operation on 100.7 MHz in 1959 airing a Beautiful Music format called "Music Only For a Woman" during the late 1960s. Station Manager Ed Peters bought the rights to syndicate the format. Soon after, Peters left and started his own company known as "Peters Productions" which syndicated the format on reel-to-reel tape to over 100 stations during the 1960s - 1970s, changing the name of the format to "Music Just For The Two Of Us."

San Diego in the early 1970s had three "beautiful music" stations and was about to gain a fourth, so KFMB AM program director Bobby Rich and station manager Paul Palmer concocted a super high energy Top 40 format to challenge market leader KCBQ. Rich wanted to change the call letters to something with "Q" in them to become "the FM Q" but the owners refused to break up the KFMB AM/FM/TV matched set of calls. Although 100.7 is closer to 101 than 100, KGB FM had already established itself as 101KGB, so KFMB FM became "B-100" in March 1975 with the slogan "Better Boogie", eventually knocking off longtime AM Top 40 powerhouse KCBQ in the Fall 1977 Arbitron ratings. B-100 was the first major market FM rocker to achieve overall #1 Arbitron ratings for all listeners over the age of 11. The station's on air staff during its first two years included Phil Flowers, Rich Brother Robbin, Rocket Man, Jimi Fox, Willie B. Goode, Rob Landree, Dave Conley, Billy Martin, Glen McCartney, Shotgun Tom Kelly, Gene Knight, Danny Wilde, Gary Kelley, Billy Pearl, Beaver Cleaver (aka Ken Levine), Jimmy Rogers, Chris Lance, Terri Lynne, Uncle Fred, and Dr. Boogie (aka Bobby Rich). Several from this group left to create Ten Q (KTNQ 1020 AM) in Los Angeles after the first year.

B-100 had major success in the 1980s, reinventing itself as one of the nation's first "hot" adult contemporary stations, melding top 40 hits with an adult delivery by its high-profile airstaff, including "The B-Morning Zoo with The Rich Brothers" featuring Bobby Rich (now mornings at Mix 96, Tucson), Scott Kenyon (deceased 2012), Pat Gaffey, and Frank Anthony (now at Walrus FM in San Diego), along with Gary Kelley, Gene Knight, Danny Romero (now a weatherman with ABC7, Los Angeles), Ellen Thomas (now Ellen K at KIIS, Los Angeles) and John Fox (now general manager of the first tribally-owned radio station in Southern California, Rez Radio 91.3, KOPA). [clarification needed]

Jeff and Jer became the morning show at B-100 in the late 1980s. On May 16, 1994, B-100 ended their longtime format, and after a few weeks of stunting, the station flipped to Hot AC and adopted the moniker "Star 100.7" in June. Star 100.7 aired the Bob and Sheri syndicated morning drive show in the early morning hours. "Star 100.7" continued until April 6, 2005, at 9:55 AM, when the station began stunting with a 5-minute ticking clock and a mysterious voice saying "closer...closer", which ended with an alarm going off and a female announcer saying "Bye Star". Jack FM and its adult hits format was then introduced with R.E.M.'s "It's The End of the World As We Know It (And I Feel Fine)." Local hosts Jeff and Jer left KFMB-FM in August 2005 and moved across town to 94.1 FM, now known as "Star 94.1". KFMB-FM is now home to the former long-time KGB-FM morning show, "Dave, Shelley and Chainsaw".[citation needed] In September 2013, KFMB instituted a paywall on KFMB-FM's online webstream, restricting listeners to the San Diego area.

In April 2014, Mediabase added KFMB to its Adult Top 40 panel, reflecting its shift from Adult Hits to a Modern AC presentation.[1]

Morning shows on Jack: Monique and the Man; The DSC[edit]

The station conducted a nationwide search for a morning show in September 2005, with a $1,000,000 five-year contract. The winner was the Monique and the Man morning show featuring Hispanic comedian Monique Marvez and former Star 100.7 DJs Greg and Sara. Greg is the 'Man' and Sara is a co-host. The show started on January 23, 2006 and ended in 2009. Eventually, there would be no morning show until the DSC took over on August 2, 2010. The show, previously on KGB-FM, propelled the station over two points in listener share in four weeks on air.[citation needed]


  1. ^ Mediabase Announces Panel Changes from All Access (April 22, 2014)

External links[edit]

Coordinates: 32°50′17″N 117°15′00″W / 32.838°N 117.250°W / 32.838; -117.250