From Wikipedia, the free encyclopedia
Jump to: navigation, search
City St. Louis, Missouri
Broadcast area Greater St. Louis
Branding NewsRadio 1120
Slogan "The Voice of St. Louis"
Frequency 1120 kHz AM (HD Radio)
Repeater(s) 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
Transmitter coordinates 38°43′22″N 90°3′19″W / 38.72278°N 90.05528°W / 38.72278; -90.05528 (main antenna)
38°43′24″N 90°3′12″W / 38.72333°N 90.05333°W / 38.72333; -90.05333 (auxiliary antenna)
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

KMOX (1120 kHz) is an AM 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 central U.S. and into Mexico and Canada. 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 in the Park Pacific Building at Olive Street and Tucker Boulevard. CBS Radio also has studios and offices there for its two other St. Louis radio stations, KYKY (Y98) and 102.5 KEZK-FM.[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.[4] The Federal Communications Commission requires a digital (hybrid) license for HD broadcasting.[5]

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 was started in the early days of broadcasting 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 "KVSL", for "Voice of St. Louis." The owners also applied for "KMO" (with MO the abbreviation for Missouri), but those call letters had been in use by KMO in Tacoma since 1922. KMOX signed on December 24, 1925. The "X" was added because the starting 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 his plane, The Spirit of St. Louis. That same year, KMOX became one of the first 16 stations in the CBS network.[6] 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. Its signal has been picked up in Scotland and South Africa.[7][8]

In 1933, KMOX covered the first post-Prohibition case of Budweiser beer leaving the Anheuser-Busch St. Louis brewery 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.

KMOX picked up Costas Coast to Coast in 1994. Also, in July of that year Bob Costas began hosting a sports call-in show on the station.[9]

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][10]

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 three of the team's 33 seasons (1967–2000), but it would return starting in the 2006–07 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.[11]

KMOX aired the Missouri Tigers football and basketball games for many years.[citation needed] Starting in the Fall 2011, the Tigers moved their basketball, football, and news & talk programs to KTRS.[12]

On January 30, 2012, Jon Grayson's "Overnight America", based at KMOX, and also airing on CBS stations WCCO Minneapolis and KDKA Pittsburgh, became a nationally syndicated program with several dozen stations airing it across the country.


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.[13]

While the station has been a leader in 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 from 1972 to 2010, when music station WARH (106.5 FM) took over the top spot in the Arbs.[citation needed]

KMOX has carried the Rush Limbaugh show weekdays 11am-2pm for many years. The program is pre-empted by St. Louis Cardinals' afternoon games. This is one of the very few non-local shows broadcast on the station.[14]

For the past eleven Decembers[when?], 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". June 14, 2012. Retrieved June 15, 2012. 
  4. ^
  5. ^
  6. ^ 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.
  7. ^ 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. 
  8. ^ Deacon, Gary. "Ultralight Reception of 1120 KMOX St. Loius MO-received in January 2009". Retrieved March 21, 2011. 
  9. ^ Stark, Phyllis (June 4, 1994). "Vox Jox". Billboard. 106 (23): 129. 
  10. ^
  11. ^ Cardinals returning to KMOX next season (Sept. 1, 2010)
  12. ^ "Mizzou Moves to KTRS Radio". University of Missouri Athletic Department. 
  13. ^ "Sports Open Line". KMOX. Retrieved November 2, 2013. 
  14. ^ "KMOX Programming Schedule". KMOX. Retrieved August 25, 2013. 

External links[edit]