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City Modesto, California
Broadcast area Modesto, California
Branding Relevant Radio
Frequency 840 kHz
First air date July 10, 2006
Format Catholic radio
Power 5,000 watts
Class B
Facility ID 137401
Transmitter coordinates 37°42′34″N 120°43′34″W / 37.70944°N 120.72611°W / 37.70944; -120.72611
Callsign meaning From former station owners Mike, Pete and Harry Pappas; also used on Fresno sister television station KMPH-TV
Owner Immaculate Heart Media, Inc.
Webcast Listen Live

KMPH (840 AM) is a radio station licensed to and serving the Modesto, California area. The station is owned by Immaculate Heart Media, Inc..[1]


KMPH signed on in July 2006 with an Adult Standards/MOR format, with some talk programming.[2][3] It effectively replaced sister station KTRB, which had operated from Modesto since 1933, but had just signed off the previous month in preparation of a move to the San Francisco Bay Area.[3] The station switched to an all-talk format on March 10, 2008.[2][3]

Pappas Telecasting shut KMPH down on August 31, 2010 due to lack of revenue.[2][3]

KMPH later returned to air with brokered programming provided by Paulino Bernal Evangelism of Texas, then temporarily switched to a Talk format in May 2013 fed via KOMY (1340 AM) in La Selva Beach, California. On July 1, 2013, KMPH switched to a 1950s/1960s "Graffiti Gold" Oldies format, re-launching as "Modesto's Power House" and drawing on Modesto's connection to hometown hero George Lucas's classic 1973 motion picture, American Graffiti.[4]

On July 30, 2014, Immaculate Heart Radio Catholic programming began airing on KMPH.[5] IHR's purchase of the station was consummated on October 30, 2014 at a price of $50,000. KMPH flipped to the Relevant Radio branding when IHR Educational Broadcasting and Starboard Media Foundation consummated their merger on June 30, 2017.[6]


  1. ^ "KMPH Facility Record". United States Federal Communications Commission, audio division. Retrieved 2010-07-19. 
  2. ^ a b c Pappas, Jim P. (August 19, 2010). "An Open Letter to Our Employees, Listeners, Advertisers and Vendors" (PDF). AM 840 KMPH The Patriot. Retrieved August 21, 2010. 
  3. ^ a b c d "Modesto AM KMPH (840) will turn off the transmitter August 31". August 20, 2010. Retrieved August 21, 2010. 
  4. ^ Per David Jackson, program director of KMPH Radio (July 2013).
  5. ^ "Immaculate Heart Radio broadens scope in Central California". IHR website. August 7, 2014. Retrieved June 1, 2017. 
  6. ^

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