KTMZ

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KTMZ
Currently silent
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Broadcast area
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[[Frequency|FrequencTemplate:Pluralize from text]]1220 kHz
Ownership
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History
First air date
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Former call signs
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  • KKAR (1960–1978)
  • KLIT (1978–1983)
  • KTSJ (1983–1996)
  • KWPA (1996–2000)
  • KWKU (2000–2015)
Technical information[1]
Licensing authority
FCC
1925
ClassB
Power250 watts
Transmitter coordinates
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Links
Public license information
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KTMZ (1220 AM) is a commercial radio station licensed to Pomona, California, United States, that is currently silent. Owned by Lotus Communications, KTMZ previously operated as a simulcast for Los Angeles-based KWKW (1330 AM), with its signal covering communities on the border between Los Angeles County and San Bernardino County.

The transmitter is located on Riverside Drive near Roswell Avenue in Chino.

History

The station began broadcasting December 23, 1960, as KKAR.[2][3] It was owned by Intrastate Broadcasters.[3] KKAR originally was a daytimer station, running 250 watts by day and required to go off the air at night, because 1220 AM is a Mexican clear channel frequency reserved for XEB in Mexico City. KKAR was initially intended to offer "FM listening on AM radio", with a "good music" format, playing easy listening sounds.[4]

Intrastate sold KKAR to West Coast Communications, Inc. in late 1960 for $160,000.[5] The sale closed on January 1, 1967.[3]Template:R/superscript Under West Coast, the station flipped to a Top 40 format. In late 1970, Elizabeth Schirmer, a former employee of KFMB-TV in San Diego, acquired KKAR for $250,000.[6] The ownership and format wheels spun again in 1973 when the station flipped to country music on February 24.[7] The Schirmer Family later sold the station to Bassett Broadcasting.[8]

In 1976, it began airing a Spanish language contemporary hits format after being purchased by JATO Communications. Bassett asked to sell the station before the then-required three-year period, citing its poor financial condition.[9][10]

In 1978, JATO acquired KSOM-AM-FM and was required to spin off the 1220 frequency as a result. The KKAR intellectual unit moved to 1510 kHz as KNSE; at the same time, Gore Broadcasting, Inc., acquired the frequency and relaunched it as a Christian radio outlet, KLIT.[11] In 1983, its call sign was changed to KTSJ.[12] Several groups owned KLIT/KTSJ during its tenure as a religious outlet, including Creative Communications of Pomona and American Sunrise Communications. KTSJ continued airing a Christian religious format until 1994, when it returned to playing Spanish hits.[13][14]

In 1996, the station’s call sign was changed to KWPA.[12] Personal Achievement Radio bought the station from American Sunrise for $875,000.[15] (Personal Achievement briefly held the call letters KWPA, KXPA and KYPA, all in Los Angeles, for the stations it owned.)

However, KWPA only briefly simulcast KYPA. In 1997, it shifted to a gold-based Spanish adult contemporary format as "Radio Mía" and attempted to secure the call letters KMIA.[16] Multicultural Broadcasting would acquire KWPA and KYPA in 1997.

Spanish-language sports

Script error: No such module "Labelled list hatnote". Lotus Communications acquired KWPA from Multicultural Radio at the end of 1999 for $750,000.[17] In 2000, KWPA became KWKU, and it began simulcasting Lotus's Spanish-language sports outlet, KWKW.[12][18] The 1220 station helps KWKW improve its reception in Pomona and Ontario, in addition to serving as an overflow station for KWKW sports coverage. For a time, KWKU also exclusively carried broadcasts of the Los Angeles Sparks of the WNBA.

The KWKU nominal main studio in Pomona proved critical to getting KWKW back on the air after disaster struck on December 6, 2001. A major fire at the Sunset Vine Tower, which was home to the Lotus Communications Los Angeles cluster, caused extensive electrical damage to the building. It was deemed unsafe by fire officials. 105 computers, mixers and other equipment were carted out of the building, and John Cooper, the chief engineer for Lotus Los Angeles, drove them to Pomona, where the station was back on the air in six hours.[19] As a result of the extensive damage, Lotus relocated temporarily to the recently vacated KTNQ studios and later purchased a building near Universal Studios Hollywood to be fitted out for its operation.[19]Template:R/superscript

In 2015, the 1220 call sign was changed to KTMZ.[12] The station was taken silent in December 2025; in their STA filing with the FCC, Lotus cited a loss in advertising revenue as a result of the second Trump administration's immigration policies towards Spanish-speaking residents.[20]

References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."Facility Technical Data for KTMZ". Licensing and Management System. Federal Communications Commission.
  2. ^ 1971 Broadcasting Yearbook, Broadcasting, 1971. p. B-24. Retrieved September 13, 2019.
  3. ^ a b c History Cards for KTMZ, fcc.gov. Retrieved September 13, 2019.
  4. ^ Page Module:Citation/CS1/styles.css has no content."Claremont Man Operates Pomona Radio Station, Pledges Public Service, Good Music". Progress-Bulletin. January 19, 1961. p. 3. Retrieved April 16, 2020.
  5. ^ Page Module:Citation/CS1/styles.css has no content."For the Record" (PDF). Broadcasting. November 7, 1966. p. 119. Retrieved April 16, 2020.
  6. ^ Page Module:Citation/CS1/styles.css has no content."Changing Hands" (PDF). September 21, 1970. p. 43. Retrieved April 16, 2020.
  7. ^ Page Module:Citation/CS1/styles.css has no content."Station KKAR Plans C-W Music Format". Progress-Bulletin. February 24, 1973. p. C-5. Retrieved April 16, 2020.
  8. ^ Page Module:Citation/CS1/styles.css has no content."Changing Hands" (PDF). Broadcasting. October 15, 1973. p. 17. Retrieved April 16, 2020.
  9. ^ Page Module:Citation/CS1/styles.css has no content.Gurza, Agustín (March 19, 1977). "Pomona's 1-Year-Old KKAR Making Dent]" (PDF). Billboard. p. 63. Retrieved September 13, 2019.
  10. ^ Page Module:Citation/CS1/styles.css has no content."For the Record" (PDF). Broadcasting. August 30, 1976. p. 50. Retrieved April 16, 2020.
  11. ^ Page Module:Citation/CS1/styles.css has no content."Radio stations shift a la musical chairs". Chino Champion. March 24, 1978. p. 16. Retrieved April 16, 2020.
  12. ^ a b c d Call Sign History, fcc.gov. Retrieved September 15, 2019.
  13. ^ Broadcasting/Cablecasting Yearbook 1985, Broadcasting/Cablecasting, 1985. p. B-32. Retrieved September 15, 2019.
  14. ^ "Format Changes & Updates", The M Street Journal. Vol. 11, No. 34. August 24, 1994. p. 1. Retrieved September 15, 2019.
  15. ^ Page Module:Citation/CS1/styles.css has no content."Transactions" (PDF). Radio & Records. December 8, 1995. p. 6. Retrieved April 16, 2020.
  16. ^ Page Module:Citation/CS1/styles.css has no content."Douglas/PAR Taps Two GMs In L.A., DC" (PDF). Radio & Records. September 19, 1997. p. 21. Retrieved April 16, 2020.
  17. ^ Page Module:Citation/CS1/styles.css has no content."Transactions" (PDF). Radio & Records. December 17, 1999. p. 10. Retrieved April 16, 2020.
  18. ^ Broadcasting & Cable Yearbook 2002-2003, Broadcasting & Cable, 2002-2003. p. D-56. Retrieved September 15, 2019.
  19. ^ a b Page Module:Citation/CS1/styles.css has no content.Thomas, Barry (August 2002). "The Tower and the Almost Inferno" (PDF). Broadcast Engineering Radio. pp. 34, 42. Retrieved January 10, 2020.
  20. ^ Page Module:Citation/CS1/styles.css has no content.Venta, Lance (December 20, 2025). "FCC Report 12/21: American Public Media Accepts $86,400 Penalty For EAS Tones". RadioInsight. Retrieved January 26, 2026.

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