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KXSN Sunny 98.1 San Diego's Greatest Hits logo.png
CitySan Diego, California
Broadcast areaSan Diego Metropolitan Area
BrandingSunny 98.1
SloganSan Diego's Greatest Hits
Frequency98.1 MHz (also on HD Radio)
First air dateFebruary 4, 1960 (as KJLM)
FormatFM/HD1: Classic hits
HD2: Smooth jazz "Smooth Jazz KIFM"
HD3: LGBTQ Talk/EDM "Channel Q"
ERP26,500 watts
HAAT209 meters (686 ft)
Facility ID34589
Transmitter coordinates32°50′17″N 117°15′00″W / 32.838°N 117.250°W / 32.838; -117.250Coordinates: 32°50′17″N 117°15′00″W / 32.838°N 117.250°W / 32.838; -117.250
Callsign meaningK X SunNy
Former callsignsKJLM (1960–1967)
KDIG (1967–1978)
KIFM (1978–2016)
(Entercom License, LLC)
Sister stationsKBZT, KWFN, KSON, KYXY
WebcastFM/HD1: Listen Live
HD2: Listen Live
HD3: Channel Q Listen Live
WebsiteFM/HD1: Sunny981sd.radio.com
HD2: Smooth Jazz KIFM
HD3: Channel Q

KXSN (98.1 MHz) is a commercial FM radio station in San Diego, California, branded as Sunny 98.1. Owned by Entercom, the station airs a classic hits radio format. The studios and offices are located in San Diego's Stonecrest area, off Granite Ridge Drive, across the street from rival station KMYI. The transmitter is off La Jolla Scenic Drive South in La Jolla, amid towers for several other San Diego FM and TV stations.[1]

KXSN broadcasts in the HD Radio format. Its HD2 subchannel carries Smooth Jazz, using the call sign of former San Diego jazz outlet KIFM, which once was heard on 98.1. The HD3 subchannel carries "Channel Q," a Radio.com format of LGBTQ-oriented talk and EDM dance music.


KJLM and KDIG[edit]

The station first signed on the air on February 4, 1960, as KJLM.[2] It was owned by E. Edward Jacobson and it operated at only 4,500 watts, a fraction of its current power. The station aired what it described as a "good music" format, a mix of middle of the road (MOR) and easy listening music.

In 1968, Jacobson changed the station's call sign to KDIG but remained as owner and president, and continued the MOR format.


The station changed hands in 1971, getting sold to West Coast Media.[3] In 1974, the call letters were switched to KIFM and the format moved to what West Coast described as "mellow music," a mix of soft rock and soft adult contemporary. In the 1980s, KIFM experimented with a contemporary jazz program at night, called "Lights Out San Diego."

In September 1987, as Lights Out San Diego gained in popularity, KIFM went with smooth jazz around the clock as "Smooth Jazz 98.1".[4]

In 1996, KIFM was bought by Jefferson-Pilot Broadcasting for $28.75 million.[5] Jefferson-Pilot would be acquired by Lincoln Financial Group. The media division became Lincoln Financial Media.

During smooth jazz's popularity, KIFM was one of the top rated stations in San Diego and was the 2005 winner of the Marconi Award.

Smooth AC[edit]

In the Summer of 2011, as the smooth jazz format began to age, KIFM shifted its format to smooth adult contemporary, airing mostly pop artists with R&B roots, such as Michael Jackson, Whitney Houston, Madonna and Anita Baker, with only an occasional Smooth Jazz instrumental, and rebranded as "98.1 Smooth FM".

By the fall of that year, the station shifted to Rhythmic AC, by playing recent and older R&B hits and classic soul tracks. When the HD Radio transmitter went on air, the original smooth jazz format moved to KIFM's HD2 subchannel.

Easy 98.1[edit]

Without warning on August 19, 2013, at 10 a.m., KIFM flipped to Soft AC as "Easy 98.1".[6] The rebranding came after KIFM trailed San Diego's longtime AC leader KYXY in the Arbitron ratings reports. The final song on "Smooth" was "I Love You Always Forever" by Donna Lewis, while the first song on "Easy" was "Easy" by The Commodores. After the flip, the station's ratings improved dramatically, reaching #1 in several Arbitron ratings periods. At the same time, KYXY, like many stations that were originally Soft AC, has moved closer to a more Hot AC format to attract younger listeners.

Entercom Purchase[edit]

On December 8, 2014, Entercom announced that it was purchasing Lincoln Financial Group's entire 15-station lineup (including KIFM) in a $106.5 million deal, and would operate the outlets under a LMA deal until the sale is approved by the FCC.[7] The merger was approved by the FCC on July 14, 2015, and the sale was completed on July 17.

On April 21, 2016, at 5 p.m., after playing "Sundown" by Gordon Lightfoot, KIFM rebranded as "Sunny 98.1," and relaunched its adult contemporary format, this time moving in a more contemporary direction. The first song on "Sunny" was "Walking on Sunshine" by Katrina & the Waves. Prior to the change, the station had led the San Diego market with a 6.2 share in the March 2016 Nielsen Audio PPM ratings, making for a rare situation where a radio station at the top of the market ratings changed formats (though it was speculated the station made the change due to low advertising revenues with the previous format).[8] On April 28, 2016, KIFM changed callsigns to KXSN to match the "Sunny" moniker. Concurrently, the KIFM callsign was moved to a co-owned sports radio station in Sacramento, AM 1320 KCTC. Despite the call letter switch, the KXSN HD2 subchannel is referred to as "Smooth Jazz KIFM" as a tribute to the classic Smooth Jazz station.

Classic Hits[edit]

On July 24, 2017, KXSN switched to classic hits, still branded as "Sunny 98.1." This returned the Classic Hits format to the market for the first time since 2000, when KJQY became a Hot AC station. It was a second time that the 98.1 frequency changed formats despite leading the market, this time with a 6.2 share in the June 2017 Nielsen ratings. The change came because of the merger between station owner Entercom and CBS Radio, then-owner of soon-to-be sister station KYXY, as it would eliminate competition between the 2 stations.[9] Entercom completed the acquisition of KYXY on November 17th.[10][11]

In January 2018, the station studios moved out of Mission Valley and re-located to Stonecrest.

In November 2018, KXSN switched on a HD3 subchannel, carrying the LGBTQ-targeted "Channel Q" format of talk/dance music from Palm Springs sister station KQPS.


  1. ^ Radio-Locator.com/KXSN
  2. ^ Broadcasting Yearbook 1961-1962 page B-23
  3. ^ Broadcasting Yearbook 1979 page C-27
  4. ^ "KIFM Converts To All-Jazz" (PDF). Radio and Records issue number 703. September 11, 1987. p. 1. Retrieved July 30, 2017.
  5. ^ Broadcasting & Cable Yearbook 2010 page D-103
  6. ^ Venta, Lance (August 19, 2013). "KIFM San Diego Goes Easy". RadioInsight. Retrieved July 30, 2017.
  7. ^ Venta, Lance (December 22, 2014). "Entercom Acquires Lincoln Financial Media". RadioInsight. Retrieved July 30, 2017.
  8. ^ Venta, Lance (April 21, 2016). "Sun Sets For San Diego's Easy 98.1". RadioInsight. Retrieved July 30, 2017.
  9. ^ Sunny 98.1 San Diego Shifs to Classic Hits Radioinsight - July 31, 2017
  10. ^ "Entercom Receives FCC Approval for Merger with CBS Radio". Entercom. November 9, 2017. Retrieved November 17, 2017.
  11. ^ Venta, Lance (November 17, 2017). "Entercom Completes CBS Radio Merger". Radio Insight. Retrieved November 17, 2017.

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