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Simulcast of KNX (AM), Los Angeles
Broadcast area Greater Los Angeles
Frequency97.1 MHz ( HD Radio)
BrandingKNX News 97.1 FM
Language(s) English
Format All-news radio
First air date
(70 years ago)
Former call signs
  • KFMU (1954–1966)
  • KGBS-FM (1966–1976)
  • KGBS (1976–1978)
  • KHTZ (1978–1985)
  • KBZT (1985–1986)
  • KLSX (1986–2009)
  • KAMP (2009)
  • KAMP-FM (2009–2021)
  • KNOU (2021)
Call sign meaning
Inherited from KNX (AM)
Technical information [1]
Licensing authority
Facility ID25075
ERP21,000  watts
HAAT915 meters (3,002 ft)
Transmitter coordinates
34°13′37″N 118°04′01″W / 34.227°N 118.067°W / 34.227; -118.067
Public license information

KNX-FM (97.1 MHz, "KNX News 97.1 FM") is a commercial radio station in Los Angeles, California, United States. The station is owned by Audacy, Inc. and airs an all-news radio format in a full-time simulcast with KNX (1070 AM). The station has studios at the intersection of Wilshire and Hauser Boulevards in the Miracle Mile district of Los Angeles, and the transmitter on Mount Wilson.

In addition to a standard analog transmission, KNX-FM broadcasts in the HD Radio format and streams online via Audacy. KNX-FM’s HD2 subchannel carries Audacy's LGBTQ-oriented talk/ EDM format " Channel Q", and KNX-HD3 features a non-stop dance mixshow format billed as "Fire Lane".


Early years

In 1954, the station signed on as KFMU and operated under those call letters during the 1950s and early 1960s. It was originally licensed to the Los Angeles suburb of Glendale and was owned by Nicolas M. Brazy. [2] KFMU aired an easy listening format known as "Good Music". The station was a subsidiary of Metropolitan Theatres Corp., which by 1959 was program testing KFMW in San Bernardino, and held a permit for a KFMX in San Diego as well as two other stations. [3]

In the late 1960s, KFMU was purchased by Storer Broadcasting and became home to KGBS-FM, as a sister station to KGBS (1020 AM). The two stations carried a country music format. Since its AM station was a daytimer, only authorized to be on the air during daylight hours, the FM station allowed the format to be heard around the clock, for those who had FM radios. In the early 1970s, the station experimented with rock and roll and pop music formats before switching to a soft country format in 1973, when it adopted the name "Gentle Country". During the July 8, 1972, edition of American Top 40, Casey Kasem listed KGBS as the show's affiliate in Los Angeles. In 1976, KGBS-FM continued with its country music format while its AM sister station switched to top 40. On August 28, 1978, the FM station changed its call letters to KHTZ while continuing with its country music format.[ citation needed]

On July 31, 1979, Storer, after having sold the AM radio station which was now known as KTNQ (Ten-Q), moved its top-40 format to 97.1 FM and began broadcasting as KHTZ ("K-Hits"). For a few hours, the two stations simulcast the signal until KTNQ switched to Spanish-language programming at noon. Within a few weeks, KHTZ evolved into an adult contemporary outlet. On November 27, 1985, the station changed its call letters to KBZT and was known as "K-Best 97".[ citation needed]

Classic rock era (1986–1995)

On September 26, 1986, at 3 p.m., the station was renamed KLSX and flipped to a classic rock format. [4] The call letters KLSX were chosen to sound like the word "classics".

To demonstrate the vastness of the station's on-air library, KLSX advertised "no-repeat workdays", not playing any song more than once per day. An exception was when the station played one song twice as part of a contest; listeners could win a prize for being the destination caller and identify correctly the intentionally repeated track. Additionally, KLSX hosted an annual "A—Z" event where the entire library was played in alphabetical order by artist during weekday hours, a playlist that ran about 100 hours. Whenever the station played " Southern Man" by Neil Young and Crazy Horse, it was always followed by Lynyrd Skynyrd's " Sweet Home Alabama".[ citation needed]

In 1988, the long-running Beatles show Breakfast with the Beatles with host Deirdre O'Donoghue moved to KLSX from KNX-FM, a show which she began doing on KMET in 1983. After she died in 2001, the show was taken over by Chris Carter. On September 3, 2006, the station broadcast its last airing of Breakfast with the Beatles, which was then replaced by infomercials, drawing some local protest. [5] [6] Paul McCartney, Ringo Starr, and Yoko Ono have all called into the program. In late November 2006, local classic rock station KLOS picked up the show.

On July 21, 1991, the station began to air the syndicated Howard Stern Show and took on the slogan "Howard Stern all morning, classic rock all day".[ citation needed]

Hot talk era (1995–2009)

Jeff Duran On KLSX 97.1 FM

On July 31, 1995, KLSX changed to a hot talk format on weekdays and went by the moniker "Real Radio 97.1", and had hosts such as Susan Olsen and Ken Ober, Scott Ferrall, Riki Rachtman, Kato Kaelin, Mother Love, Carlos Oscar, Voxx, Tim Conway Jr., Doug Steckler and the Regular Guys (Larry Wachs and Eric von Haessler). [7] [8] [9] Howard Stern was critical of this format change and referred to it as "Hindenburg Radio". In 1996, the station dropped the "Real Radio" name and became known as "The FM Talk Station", hiring new hosts; the following year, the station began carrying the syndicated Tom Leykis Show, becoming its flagship station. On April 1, 2002, KLSX temporarily brought back Kaelin and the "Real Radio" slogans and jingles as part of an April Fools' Day joke.

KLSX was owned by Greater Media until 1997, when Greater Media swapped KLSX and sister station KRLA for three stations: WMMR in Philadelphia and WBOS and WOAZ in Boston. The deal enabled Greater Media to operate larger clusters in these two markets while exiting Los Angeles. The swap led KLSX into the ownership of CBS Radio, where it joined FM radio stations KTWV and KCBS-FM along with AM radio stations KNX and KFWB.

From 1995 until its acquisition by CBS in 1997, KLSX played alternative music on weekends. Instead of competing with its now-sister station, established modern rock outlet KROQ-FM, it was asked to switch to adult album alternative, a blend of album rock and alternative music that appealed to a 35-and-up age demographic. That format continued on weekends until 1999, when the talk format was expanded to weekends, leaving Saturday night's Jeff Duran Metal Blitz [10] and Sunday morning's Breakfast with the Beatles as the only programs that played music. During that era and prior to being sold, KLSX boasted the only late-night talk shows in Los Angeles featuring women as hosts: Dr. X and subsequently a short-run of Shrink Rap. KLSX was also the local home of the syndicated novelty music program Dr. Demento.

KLSX was the Los Angeles-area radio home of the Oakland Raiders of the National Football League. [11] Previously, the station aired games from the Sports USA Radio Network and NFL on Westwood One Sports. In 2001, it carried the Los Angeles Xtreme of the XFL. KLSX has also aired a sports year-in-review show from Westwood One.

A number of changes came to KLSX in 2005. On October 25, it was announced that Adam Carolla would take over as the station's morning show host in January 2006 due to Howard Stern's departure to satellite radio. On that same day, the station also became known on-air as "97.1 Free FM"—so-called to highlight that its stations broadcast free-to-air, funded by commercials, whereas satellite radio requires a subscription fee. In addition to KLSX, CBS Radio introduced its Free FM branding on KSCF in San Diego, KIFR in San Francisco, and other hot talk-formatted outlets. Those three California stations carried The Tom Leykis Show and The John and Jeff Show. Locally, Tim Conway Jr. and comedy writer Doug Steckler co-hosted the evening show (The Conway and Steckler Show) until June 2005, when Steckler's contract was not renewed. Funnyman/impressionist Brian Whitman was brought in as Steckler's replacement, and the show was renamed The Conway and Whitman Show. The Frosty, Heidi and Frank Show was picked up and, until January 2007, was syndicated to KSCF.

In 2007, KLSX added Danny Bonaduce to The Adam Carolla Show (replacing sportscaster Dave Dameshek). In 2008, he was given his own (local) one-hour show following Frosty, Heidi and Frank, in a timeslot that had been vacant since the departure of entertainment reporter Sam Rubin in 2003. Also in 2008, Brian Whitman unexpectedly left the station in March. Tim Conway, Jr. ended up hosting the evening show alone. Arsenio Hall was a semi-regular guest host with Tim on The Tim Conway Jr. Show on Wednesday nights in 2008–09.

Top 40/CHR era (2009–2021)

"97.1 AMP" logo used from March to September 2020

In early 2009, speculation arose on whether KLSX would be switching formats. On February 17, information started to emerge that KLSX was to drop hot talk on February 20 and flip to a top 40 format aimed at younger listeners, taking the "AMP" format that was created by KROQ-FM program director Kevin Weatherly and APD John Michael on the HD2 channel of KCBS-FM.[ citation needed]

The station's main line up of The Adam Carolla Show, Frosty, Heidi and Frank, Danny Bonaduce (in a solo spot known as Broadcasting Bonaduce), The Tom Leykis Show, The Tim Conway Jr. Show, and The John and Jeff Show were all given advance notice of the format shift and afforded the opportunity to host final shows to explain the situation and say their goodbyes. "97.1 FM Talk" ended on February 20, 2009 at 5 p.m. ( Pacific time), giving longtime radio veteran Tom Leykis the final sign-off and the opportunity to "blow up" the station (in reference to a catchphrase used by the show's callers, "Blow me up, Tom!"). [12]

The new format, branded "97.1 AMP Radio", then launched with " Paranoid" by Kanye West featuring Mr Hudson (which coincidentally was also playing on its new rival KIIS-FM at the same time), beginning a commercial-free block of 10,000 songs, similar to the debuts of the current KDAY in 2004 and, in 1989, KQLZ (Pirate Radio).[ citation needed] The launch of "AMP" marked the first top 40 radio battle in Los Angeles since KPWR switched to a hip hop-heavy rhythmic contemporary format in 1994. On June 30, 2009, the station changed its callsign to KAMP to match the new format branding, the call letters having become available when student-run LPFM station KAMP-LP in St. Michael, Alaska went silent on April 20 of that year. On July 7, the "-FM" suffix was added, making the calls KAMP-FM, in order to avoid confusion with KAMP (AM), an unlicensed student-run radio station at the University of Arizona, which had for several years been exploring the possibility of starting a LPFM as well [13] which would presumably have revived the KAMP-LP call letters.

On January 4, 2010, KAMP-FM rounded out their on-air lineup, which featured Carson Daly in mornings, Chris Booker middays, Ted Stryker afternoons, and Casey McCabe at night. CBS Radio would later expand the "AMP Radio" brand to Detroit, Boston, Orlando, New York City, Philadelphia, and Dallas. As of 2021, all of these stations had dropped the "AMP Radio" brand and flipped to different formats.[ citation needed]

On February 2, 2017, CBS Radio announced it would merge with Entercom. [14] The merger was approved on November 9, 2017, and was consummated on November 17. [15] [16]

Many personnel changes have occurred in the years following the merger. Carson Daly left KAMP-FM on July 28, 2017. [17] The morning drive timeslot remained open until February 2018, when the station introduced a new morning show hosted by former WBMP New York morning host Edgar "Shoboy" Sotelo, former WWWQ Atlanta morning show co-host and comedian Brian Moote, and Billboard news correspondent Chelsea Briggs. [18] [19] Moote left KAMP-FM in July 2019, [20] while Sotelo left in October 2019. The departures would result in the on-air lineup being revised, making Booker move from afternoons to mornings, and adding former KPWR morning co-host Krystal Bianca to mornings, Christen Limon to middays, and Yesi Ortiz to afternoons, while McCabe remains as night host. [21] Booker was cut by Entercom due to layoffs from the COVID-19 pandemic on April 3, 2020. [22] On August 3, 2020, The Morning Mess from Phoenix sister station KALV-FM, hosted by Joey Boy, Aneesh Ratan, Jeana Shepherd, and Karla Hernandez, began broadcasting on KAMP-FM. [23] In addition, the station would again overhaul its on-air lineup, this time adding Julia Lepidi (from Chicago sister station WBBM-FM) and former Detroit host Josh "Bru" Brubaker.

On March 30, 2020, KAMP-FM dropped "Radio" from their moniker and re-branded as "97.1 AMP". At some point the following September, it reverted to the original "97.1 AMP Radio" branding.[ citation needed]

On April 15, 2021, KAMP-FM rebranded as "97.1 Now", and the slogan changed to "LA's Party Station". The station concurrently applied to change its call letters to KNOU, which took effect on April 22. [24] At the time of the rebrand, KAMP-FM was the last remaining "AMP Radio" branded station launched by CBS.[ citation needed]

KNX simulcast (2021–present)

On December 6, 2021, Audacy announced that KNOU would flip to a simulcast of KNX. The change took place at 3 p.m. that day, dropping the "Now" format about 30 seconds into playing " Sunflower" by Post Malone and Swae Lee. With this move, KIIS-FM remained as the only top 40-formatted station in the Los Angeles market. [25]

On December 21, 2021, KNOU changed its call letters to KNX-FM, further reflecting the AM station's primary signal shift to the FM band, while still being heard on the existing 1070 AM frequency. This marked the return to the Los Angeles airwaves for the KNX-FM call sign, last used on March 2, 1989; 35 years ago (1989-03-02). KNX-FM originally signed on the air on March 30, 1948, at 93.1 MHz, the current-day KCBS-FM.[ citation needed]

HD Radio

KNX-FM broadcasts in HD Radio with three digital subchannels:

  • KNX-HD1 is a digital simulcast of the FM analog signal.
  • KNX-HD2 carries " Channel Q", an LGBTQ-oriented talk/ EDM format. [26]
  • KNX-HD3 airs a non-stop dance mixshow format billed as "Fire Lane".

HD2 history

On January 8, 2018, Entercom entered a deal to bring the New York City-based dance/EDM webcast Pulse 87 to the Los Angeles airwaves as a HD2 subchannel of KNX-FM, billing it as "Pulse 97.1 HD2". The subchannel replaced the simulcast of KNX, which moved over to the HD2 subchannel of KCBS-FM. [26] [27]

On August 31, 2018, KNX-HD2 dropped Pulse 87 to make room for the newly launched "Out Now Radio", a talk/ EDM format targeted to the LGBTQ community. [28] Many of the hosts on Out Now Radio were based at Entercom's Los Angeles studios. On November 1, 2018, Out Now Radio rebranded as " Channel Q". [29]

HD3 history

On March 14, 2019, KNX-FM launched an HD3 subchannel with a nonstop dance/EDM mixshow format, billed as "Fire Lane". The music and presentation is similar to Pulse 87's format. Entercom expanded the brand to its platform on August 5, 2019.[ citation needed]


  1. ^ "Facility Technical Data for KNX-FM". Licensing and Management System. Federal Communications Commission.
  2. ^ Broadcasting Yearbook 1955 page 86
  3. ^ "Corwin fm network shoots for early '60" (PDF). Broadcasting. 1959-07-27. Retrieved 2017-06-29.
  4. ^ KBZT Switches To Classic Rock KLSX (Radio & Records, 10/03/1986, page 1)
  5. ^ "Breakfast with the Beatles' dropping off KLSX's menu". Los Angeles Times. 2006-08-07. Archived from the original on 2008-10-19. Retrieved 2009-03-03.
  6. ^ "Save BREAKFAST WITH THE BEATLES". Archived from the original on 2006-08-19. Retrieved 2006-08-18.
  7. ^ KLSX/L.A.'s Talk Transition (Radio & Records, 08/04/1995, page 1)
  8. ^ KLSX Tries Talk Lite (Los Angeles Radio Guide, 09/10/1995, page 21)
  9. ^ KLSX-FM: From Classic Rocker to Outrageous Talker (Radio & Records, 06/12/1998, page 46)
  10. ^ "Radio Webcasting Gets Heavy". Wired. Retrieved August 26, 2020.
  11. ^ "Faldo quickly changed from a golfer to gofer". Los Angeles Times. Retrieved 2007-08-10.[ dead link]
  12. ^ Charlie Amter (2009-02-18). "FM talk radio format all talked out? KLSX-FM (97.1) going top 40 Friday". LA Times blogs. Retrieved 2009-03-03.
  13. ^ Aaron Cowman (2001-02-26). "KAMP radio anticipate low-power FM license". Arizona Daily Wildcat. Retrieved 2023-03-26.
  14. ^ "CBS Radio To Merge With Entercom - RadioInsight".
  15. ^ "Entercom Receives FCC Approval for Merger with CBS Radio". Archived from the original on 2017-11-17. Retrieved 2017-11-17.
  16. ^ "Entercom Completes CBS Radio Merger - RadioInsight".
  17. ^ "Carson Daly Says Goodbye to Radio for Family and TV". Variety. Retrieved 2019-07-19.
  18. ^ "Entercom Los Angeles Announces Edgar Sotelo & Brian Moote as New Morning Show Hosts On KAMP (97.1 AMP Radio)". FMQB. 2018-01-09.
  19. ^ "KAMP (97.1 AMP Radio)/Los Angeles Adds Chelsea Briggs To Morning Show". All Access. All Access Music Group. 2018-01-30.
  20. ^ "Former Bert Show's Brian Moote loses Los Angeles morning show gig". The Atlanta Journal-Constitution. 2019-08-01.
  21. ^ Venta, Lance (2019-10-25). "97.1 Amp Radio Revises On-Air Lineup As Chris Booker & Krystal Bee Move To Mornings & Edgar Soltelo Exits". RadioInsight. RadioBB Networks.
  22. ^ "Ongoing List Of Those Affected By Entercom's Massive Cuts". RadioInsight. RadioBB Networks. 2020-04-03.
  23. ^ Venta, Lance (2020-07-30). "Live 101.5 Phoenix' Morning Mess To Air On 97.1 Amp Los Angeles". RadioInsight. RadioBB Networks.
  24. ^ "KAMP Los Angeles Relaunches As 97.1 Now - RadioInsight".
  25. ^ "Audacy Brings KNX Los Angeles To FM". RadioInsight. Retrieved 2021-12-06.
  26. ^ a b "Entercom Launches LGBTQ Talk Format On, HD Radio". Inside Radio. 2018-10-12.
  27. ^ "Webcast Dance Station Pulse 87 Is On The Air In Southern California On KAMP (97.1 Amp Radio)/Los Angeles' HD-2 Signal". All Access. All Access Music Group. 2018-01-09.
  28. ^ Venta, Lance (2018-08-31). "Entercom Begins Renewed HD2 Push In Los Angeles". RadioInsight. RadioBB Networks.
  29. ^ Venta, Lance (2018-11-01). "KEZN Flips To LGBTQ Talk/Dance Channel Q; As Out Now Quickly Rebrands". RadioInsight. RadioBB Networks. Retrieved 2021-02-09.

External links