KGB (AM)

• 1. Introduction

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  KGB at 760 AM in San Diego carries the call letters of a cold war spy agency, but the story behind those three letters is far stranger than the name suggests. The initials were originally borrowed from the children of an aircraft engineer named Warren Burnham Worcester, who launched the station on the 19th of August 1941 from a tower atop the Spreckels Building. Worcester called his opening night program "the finest classical and semi-classical groups, vocalists, and the greatest name bands in the country." He died less than fourteen months later, at age 33. What happened next spans eight decades, multiple ownership families, a frequency that moved three times, a morning show that outlasted its hosts, and a call sign that was once retired for nearly four decades before coming back. How did a classical music station founded by an aerospace engineer become San Diego's sports radio home? The answer runs through a Chicago television family, a conservative talk era, a $325 million sale, and a transmitter that does something almost no other AM station in the country does at nightfall.

• 2. The Worcester Years

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  Warren Burnham Worcester was not a radio man by trade. He was an aircraft designer and engineer from a prominent family in Worcester, Massachusetts, and in 1940 his Worcester Broadcasting Corporation obtained a construction permit for a 250-watt station. He named the call letters KFMB after two of his children: "M" for his daughter Mary and "B" for his son Burnham. The original FCC permit assigned 1420 kHz, but by the time the station signed on, a new international agreement called the North American Regional Broadcasting Agreement had reshuffled frequencies, and all stations on 1420 kHz moved to 1450 kHz.

  KFMB's studios sat at the corner of Pacific Highway and Ash Street, in a neighborhood then called Pacific Square. Its transmitter tower stood atop the Spreckels Building. The opening night featured classical music, opera performances, and the United States Marine Band. Worcester's stated ambition was to bring the finest classical and semi-classical music to San Diego.

  Worcester died on the 24th of October 1942. He was 33 years old. The trustees of his estate moved quickly, and in July 1943 they sold KFMB for $95,000 to the station's own general manager, Jack O. Gross, and his business partner, O.L. Taylor. The FCC approved that sale in November of that year. Gross then bought out Taylor's 50 percent share and became sole owner on the 12th of June 1945, setting the stage for a period of rapid expansion.

• 3. Building a Broadcast Cluster

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  Jack O. Gross transformed a single AM station into a full broadcast cluster over the next decade. KFMB joined NBC Blue Network as an affiliate in September 1943, and when that network was sold and renamed simply The Blue Network, then later ABC, KFMB kept pace through each transition. In April 1947, Gross launched KFMB-FM, originally on 101.5 MHz, largely simulcasting the AM signal. Two years after that, KFMB-TV channel 8 signed on in May 1949 as a primary CBS affiliate.

  On the 30th of March 1948, KFMB moved from 1450 to 550 kHz on the AM dial, and its power grew from 250 to 1,000 watts. The FM experiment ran into a practical wall: few people owned FM receivers in those days, and the first KFMB-FM went dark in 1950.

  Ownership then changed hands twice in quick succession. In November 1950, Gross sold KFMB-AM-TV to John A. Kennedy, a former publisher of the San Diego Daily Journal. Three years later, Kennedy sold the stations to a partnership of television producer Jack Wrather and an industry executive named Helen Alvarez. On the 7th of December 1954, KFMB moved again from 550 to 540 kHz. Alvarez sold her shares to Wrather in 1957, and Wrather then sold his broadcast interests to Transcontinent Television Corporation, based in Buffalo, New York, in early 1959. That same year, a second KFMB-FM signed on at 100.7 MHz, the frequency it still occupies today. Also in 1959, a host named Geoff Edwards joined KFMB; he would later become a network television game show host.

• 4. The Midwest Television Era

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  In 1964, the Meyer family's Midwest Television, based in Champaign, Illinois, bought KFMB-AM-FM-TV as part of Transcontinent's exit from broadcasting. Their stewardship would last 53 years. Under the Meyers, KFMB settled into a middle of the road format mixing popular adult music, news, talk, and sports. One critical housekeeping matter arrived on the 29th of December 1965: KFMB moved from 540 to 760 kHz after an international channel realignment forced U.S. stations off 540, which became a Mexican and Canadian clear channel frequency. Because Honolulu's KGU was also on 760 AM, the FCC limited KFMB to 5,000 watts full time to prevent interference.

  The station's biggest audience win came in 1972 when KFMB debuted the Charlie & Harrigan morning show. Jack Woods, broadcasting as Charlie, and Paul Menard, broadcasting as Harrigan, had previously run the show in Dallas and Cleveland. In San Diego, the show became the most popular morning radio program in the city. The duo left for Dallas in 1975 and eventually returned to San Diego on rival station KCBQ in 1976, yet their legacy at KFMB outlasted their tenure. The station also began broadcasting San Diego State Aztecs football and men's basketball games in 1972.

  From roughly 1975 through 1989, KFMB ranked among the top three highest rated stations in San Diego. The station fought its own FM sister, by then known as B-100, for the top position. In January 1978, Ted Leitner joined both the KFMB TV and AM stations as a sports reporter; his first assignment was providing sports reports and commentary on the Hudson & Bauer morning show. The following year, Mark Larson, who had originally joined as a weekend DJ in June 1976, became the station's program director. In 1979, KFMB also became the flagship station for San Diego Padres baseball, announced by Jerry Coleman and Leitner.

• 5. Talk Radio Takes Hold

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  KFMB dropped San Diego State sports in 1985, and as more listeners switched to FM for music, the AM station shifted toward talk. The full formal transition came in April 1994, when KFMB dropped music entirely and switched to a news/talk format, debuting shows hosted by Geni Cavitt and Stacy Taylor alongside a two-hour afternoon news block from 4 to 6 pm. In June 1994, KFMB was among the first stations in the country to carry the newly syndicated Dr. Laura Program, which was based at KFI in Los Angeles. Mark Larson departed to become general manager of KPRZ 1210 AM when the format changed.

  By the time the station entered the 2000s, conservative talk had become its identity. Rick Roberts came over from KOGO as afternoon drive host in April 2000. By 2009, Roberts's KFMB show was among six local conservative talk shows in California that Arbitron measured at more than 100,000 weekly listeners. In March 2002, KFMB dropped a local show and an evening sports talk block to carry The Sean Hannity Show and The Laura Ingraham Show. Roberts attracted attention for his frequent discussion on air of the murder of Danielle van Dam, a San Diego girl who was eight years old.

  In October 1997, the Hudson and Bauer morning show ended its 22-year run following the death of Mac Hudson at age 58. Jack Woods, formerly of Charlie & Harrigan, returned to fill the slot. Roger Hedgecock, who moved his nationally syndicated show from KOGO, replaced Roberts in January 2012. Hedgecock retired on the 27th of March 2015, and Slater moved to afternoon drive three days later.

• 6. Sales, Splits, and a New Name

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  On the 18th of December 2017, Tegna Inc. announced it would purchase the KFMB stations for $325 million. The deal marked Tegna's re-entry into radio; its predecessor, Gannett Company, had sold a previous radio group to Evergreen Media in 1997. The sale closed on the 15th of February 2018, ending the Meyer family's 53-year ownership. Nielsen Audio ratings from the summer of 2019 placed KFMB in 18th place among all San Diego area listeners, compared to sixth for rival AM station KOGO 600.

  Tegna did not hold the radio stations long. In December 2019, Tegna agreed to sell KFMB-AM-FM to Local Media San Diego for $5 million. That deal did not include the rights to the KFMB call letters. Local Media then announced a $1.2 million resale of the AM station to iHeartMedia; that deal closed on the 17th of March 2020. The station briefly simulcast KOGO at noon local time, with regular programming resuming on March 19. Host Mark Larson cited "the huge logistic challenges" of the studio move as the reason for the temporary simulcast.

  On the 3rd of July 2020, iHeart announced that the station would change its call sign to KGB, effective the following day. The KGB call sign had previously lived on the AM dial in San Diego, carried by sister station KLSD 1360 AM from 1928 to 1982. The FCC approved a rare grant of a three-letter call sign; ordinarily such signs are no longer permitted for new assignments. On the 31st of August 2022, iHeartMedia announced a format swap: KGB's conservative talk moved to KLSD's 1360 AM signal, and KLSD's sports programming moved to 760 AM. The sports format launched on September 1, two days before the station broadcast the San Diego State Aztecs football season opener.

• 7. Towers, Watts, and the Night Signal

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  KGB's transmitter setup is genuinely unusual for an AM radio station in the United States. During daylight hours, the station broadcasts at 5,000 watts through a non-directional antenna. After dark, it increases to 50,000 watts using a directional antenna. Most AM stations reduce power at night to avoid interference; KGB runs in the opposite direction.

  The reason is geography and regulation. The 760 kHz frequency is reserved at night for WJR in Detroit, the dominant Class A station on that channel. To protect WJR's signal while still reaching San Diego listeners, the directional nighttime antenna shapes the station's coverage. The transmitter towers stand along the San Clemente Canyon Freeway, known as California State Route 52, in Santee. Their location has one distinctive quirk: the towers spread across both sides of the freeway, near Exit 13. The studios are in the Serra Mesa neighborhood in the northeastern part of San Diego.

  The San Diego Union-Tribune noted when the sports format launched that listeners in North County in particular should benefit from the move to what it called a stronger broadcast signal.