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City of license St. Louis, Missouri
Broadcast area Greater St. Louis
Branding NewsRadio 1120
Slogan "The Voice of St. Louis"
Frequency 1120 kHz AM (HD Radio)
Repeaters 102.5–3 FM KEZK-FM HD3
First air date December 24, 1925
Format News/Talk
Language(s) English
Power 50,000 watts
Class A (Clear channel)
Facility ID 9638
Callsign meaning none officially, but a local legend claims it stands for Kirkwood, MissOuri and X-mas (as the station launched on Christmas Eve)
Affiliations CBS Radio Network
Owner CBS Radio
(CBS Radio East, Inc.)
Sister stations KEZK-FM, KYKY
Webcast Listen Live
Website CBSStL.com

KMOX (1120 AM, "NewsRadio 1120") is a radio station broadcasting from St. Louis, Missouri. It is a 50,000-watt clear channel radio station, which permits its nighttime signal to be heard in most of the continental U.S. KMOX operates as "NewsRadio 1120" and refers to itself as "The Voice of St. Louis."[1][2]

KMOX is affiliated with the CBS Radio Network and licensed to a CBS Corporation subsidiary, CBS Radio. KMOX's transmitter is located in Pontoon Beach, Illinois. The KMOX studio is located at 1220 Olive Street. On June 14, 2012, KMOX announced it will move from its longstanding location at 1 Memorial Drive since 1968, to the Park Pacific Building at Olive Street and Tucker Blvd by the end of 2012 when its present lease expires. CBS Radio consolidated its two other radio stations KYKY (Y98) and KEZK-FM (Fresh 102.5) there.[3]

For many years, KMOX broadcast using C-QUAM AM stereo, but stereo transmissions ended in the spring of 2000. The station now broadcasts an HD Radio signal.[citation needed]

KMOX, along with WSDZ, are responsible for the activation of the Greater St. Louis Emergency Alert System for hazardous weather, disaster declarations, etc.[citation needed]


KMOX signed on in 1925 owned by a group of businessmen incorporated as The Voice of St. Louis Inc. According to the station's official website, the "KMOX" call letters were assigned by the Federal Radio Commission. The station's owners had hoped to be assigned "K-V-S-L", for "Voice of St. Louis" They were assigned KMOX, but in a last-ditch effort they applied for "K-M-O", but the letters had been in use by KMO in Tacoma since 1922. KMOX signed on December 24, 1925. (The "X" was because the date was Christmas Eve, or "X"mas eve. Although a local legend states the call letters mean Kirkwood, Missouri On Xmas, the K was the assigned first call letter of all new radio stations west of the Mississippi River.[citation needed]

In 1927, the station gave prominent coverage to the Charles Lindbergh flight across the Atlantic, in the Spirit of St. Louis. That same year, it became one of the first 16 stations in the CBS network;[4] two years later CBS bought KMOX, and began the process of getting approval to build a 50,000-watt transmitter tower; when completed, it gave the now-clear-channel station a signal that could be heard as far away as New Zealand and the Arctic Circle, making it one of the first international radio stations. As of 2009–2010, its signal can be picked up in Scotland and South Africa.[5][6]

In 1933, KMOX covered the first post-Prohibition case of Budweiser beer leaving Anheuser-Busch for the White House, a story carried nationally by CBS.[citation needed]

During the 1930s and 1940s, KMOX was one of several St. Louis stations broadcasting Cardinals and Browns baseball games. KMOX lost broadcasting rights in 1948 when a new Cardinals radio network was formed by the team, but by the 1950s, it became the flagship station of that network (in part due to its clear channel status).[citation needed]

During the 1950s, the station's slogan was "k-mocks", pronouncing the way the station's call letters are spelled.[citation needed]

In 1955 Robert Hyland Jr became KMOX's general manager, a role he held for nearly forty years. It was Hyland who emphasized and leveraged KMOX's relationship with the Cardinals; he also made the decision in 1960 to eliminate the station's afternoon music programming in favor of talk radio, a critical change which led to the station's subsequent dominance of the St. Louis radio market. On February 29 of that year, Jack Buck hosted the first "At Your Service" program, which included an interview with Eleanor Roosevelt. That program, like the sports talk programs that soon followed, pioneered a format for radio heavily dependent on interviews, guest appearances, and calls from listeners.[citation needed]

After Hyland died in 1992, Rod Zimmerman was named general manager. He departed in 1998 to manage WBBM Radio in Chicago. Karen Carroll was general manager from 1998 until 2003, when Tom Langmyer was promoted to the top position. Langmyer left in 2005 to become vice president/general manager of WGN Radio in Chicago. Dave Ervin managed the station from 2005 to 2008. John Sheehan, who also oversees sister stations KEZK and KYKY is the station's current Market Manager for CBS.

KMOX started broadcasting in HD Radio in May 2006.[citation needed]

On August 1, 2008; CBS Radio has announced that it would sell 50 radio stations in 12 markets to focus more on major market stations. Although CBS hasn't mentioned which stations are for sale, CBS has announced on the day of first-round bids (September 22, 2008) that KMOX will not be on the auction block.[7]

The station's emphasis had shifted away from broadcasting St. Louis professional sports teams. In 2000, the St. Louis Blues hockey team moved to KTRS after having been on KMOX for all but two of the team's 33 seasons (1967–1999), but it would return starting in the 2007–08 season. In 2006, the Cardinals' broadcasts moved to KTRS 550 AM after 52 seasons on KMOX (1954–2005) after the team purchased controlling interest in KTRS.[citation needed]

On September 1, 2010, the Cardinals announced the return of broadcasts to KMOX, starting in the 2011 baseball season.[8]

KMOX aired the Missouri Tigers football and basketball games for many years.[citation needed] Starting Fall 2011 the Tigers moved their basketball, football, and news & talk programs to KTRS.[9]

On January 30, 2012, Jon Grayson's "Overnight America", already heard on KMOX, WCCO and KDKA became a nationally syndicated program with over 20 stations across the country on board already.


Buck and Shannon announcing Cardinals game at Busch, 1992

KMOX has had a long history of broadcasting sports. In 1926, it broadcast the Cardinals-Yankees World Series, and starting the next season the station was regularly carrying Cardinals' games. KMOX's most famous sports figure was Jack Buck, who was the station's year-round sports director during the years he was also calling baseball and football for the CBS radio and television networks. Another famous figure was Harry Caray, who did play-by-play for Cardinals' baseball from 1945 through 1969. Bob Costas did play-by-play on KMOX for the Spirits of St. Louis of the American Basketball Association from 1974 until the ABA-NBA merger in June 1976.[citation needed]

The station continues to host sports programming such as "Sports on a Sunday Morning" with host Ron Jacober, and "Sports Open Line." Kevin Wheeler and Ron Jacober host "Sports Open Line", which airs every weekday night.[10]

While the station was known nationally for sports play-by-play, KMOX is best known in St. Louis for its format of news and talk. The station offers news, weather and traffic updates throughout the day. KMOX held the distinction of holding the record for consecutive number one Arbitron ratings books in the United States. The station was consistently the number one radio station with listeners 12 and older since 1972: however, in 2010 music station WARH (106.5 FM) took over the top spot in the Arbs.[citation needed]

Rush Limbaugh airs weekdays (11am-2pm) when not pre-empted by St. Louis Cardinals' afternoon games starting in 2011. This is one of the very few non-local shows broadcast on the station.[11]

For the past eleven Decembers, KMOX has hosted a holiday radio program, in which KMOX personalities perform an old-time radio show in front of a live audience.[citation needed]

Live play by play sports on KMOX[edit]


Notable current and past KMOX broadcasters include:


  1. ^ "Newsradio 1120 KMOX". CBS St. Louis (webpage). CBS Local Media, a division of CBS Radio Inc. Retrieved October 29, 2011. 
  2. ^ "USPTO Trademark Reg. No. 2998300". 
  3. ^ "KMOX Leaving One Memorial Drive for Park Pacific". KMOX.com. June 14, 2012. Retrieved June 15, 2012. 
  4. ^ Radio Digest, September 1927, quoted in: McLeod, Elizabeth (September 20, 2002). CBS—In the Beginning, History of American Broadcasting. Retrieved on 2007-01-01. The other stations were WOR in Newark; WADC in Akron, Ohio; WAIU in Columbus, Ohio; WCAO in Baltimore; WCAU in Philadelphia; WEAN in Providence; WFBL in Syracuse; WGHP in Detroit; WJAS in Pittsburgh; WKRC in Cincinnati; WMAK in Buffalo-Lockport; WMAQ in Chicago; WNAC in Boston; WOWO in Fort Wayne, Indiana; and KOIL in Council Bluffs, Iowa.
  5. ^ MARKGM20877. "MW DX WWL New Orleans and KMOX St Louis Received In Scotland On Perseus SDR-he received it on Tuesday September 14, 2010". Youtube. Retrieved March 21, 2011. 
  6. ^ Deacon, Gary. "Ultralight Reception of 1120 KMOX St. Loius MO-received in January 2009". Retrieved March 21, 2011. 
  7. ^ "First bids on CBS Radio selloffs due today". Radio-Info.com. September 22, 2008. Retrieved May 28, 2011. 
  8. ^ Cardinals returning to KMOX next season (Sept. 1, 2010)
  9. ^ "Mizzou Moves to KTRS Radio". University of Missouri Athletic Department. 
  10. ^ "Sports Open Line". KMOX. Retrieved November 2, 2013. 
  11. ^ "KMOX Programming Schedule". KMOX. Retrieved August 25, 2013. 
  12. ^ Former KMOX Host Bruce Bradley Dies at 79, KMOX (June 24, 2013)
  13. ^ Tom Ackerman (May 4, 2014). "ACKERMAN: Here’s To Ron Jacober". KMOX. 

External links[edit]

Original courtesy of Wikipedia: http://en.wikipedia.org/wiki/KMOX — Please support Wikipedia.
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1163 news items

CBS Local

CBS Local
Sat, 26 Jul 2014 13:48:45 -0700

COOPERSTOWN, New York (KMOX)- Former Cardinals manager Tony LaRussa hit the golf course, signed a few autographs, and met with media, Saturday, in Cooperstown on the eve of his induction into baseball's hall of fame. KMOX Sports Director Tom ...

UMSL Daily (blog)

UMSL Daily (blog)
Thu, 24 Jul 2014 14:11:15 -0700

Killeen, a University of Missouri–St. Louis alumnus and reporter for KMOX (1120 AM), has just released “Try to Kiss a Girl,” the story of 11-year-old Patrick Cantwell escaping the oppressive heat of St. Louis in the summer for the breezy shores of Lake ...
Riverfront Times (blog)
Wed, 23 Jul 2014 10:52:57 -0700

In the spirit of scientific inquiry, we listened to his roughly two-hour interview with KMOX's Reardon on Tuesday, which we assumed would present the friendliest arena for Akin to open up his feelings and let loose. After a thorough analysis, it's ...

CBS Local

CBS Local
Mon, 21 Jul 2014 07:33:47 -0700

STE. GENEVIEVE, Mo. (KMOX) - Despite widespread searches and police blockades, there's still no sign of a Ste. Genevieve woman who vanished from her home two weeks ago. Lynn Messer, 52, has been missing since July 8, when her husband awoke ...

CBS Local

CBS Local
Fri, 11 Jul 2014 08:22:06 -0700

LOUIS (KMOX) - Lost for maybe the next three months. Those are the shocking words Cardinals fans are getting used to, now that All Star catcher Yadier Molina is about to undergo surgery to repair a torn ligament in his right thumb. SLU Care orthopedic ...
CBS Local
Sat, 26 Jul 2014 10:26:15 -0700

(KMOX) - A woman accused of killing a Northwoods man by setting his house on fire is now in police custody. St. Louis County officers say 36-year-old Lakieshia Lane surrendered to authorities on Friday night. She faces charges of first-degree murder ...

CBS Local

CBS Local
Thu, 24 Jul 2014 00:30:00 -0700

(KMOX) - Fraud, waste and outright stealing by public officials goes on, in auditor Tom Schweich's words, “all over the state.” “We know there is a lot of waste in government, people who don't do their jobs well. That's been well documented but the ...

CBS Local

CBS Local
Sat, 26 Jul 2014 10:15:00 -0700

LOUIS (KMOX) - Baseball Hall of Famer, World Series-winning Cardinals catcher, and current member of the team's television broadcast crew Tim McCarver will be the next to receive a star on the St. Louis Walk of Fame. The non-profit announced Friday ...

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