{{Infobox radio station | name = KHJ | city = Los Angeles, California | area = Los Angeles metropolitan area | branding = Relevant Radio | airdate = | frequency = 930 kHz | format = Roman Catholic talk and teaching | power = 5,000 watts | class = B | callsign_meaning = Randomly assigned, later adopted the slogan "Kindness, Happiness, and Joy"<ref name=joy>"The Man Who Is Uncle to a Million", Wireless Age", July 1925, page 55.</ref> | former_callsigns = KRTH (1986–1990)KKHJ (1990–2000) | former_frequencies = 833 kHz (1922)750 & 619 kHz (1922–1923)760 kHz (1923–1925)740 kHz (1925–1927)720 kHz (1927–1928)750 kHz (1928)900 kHz (1928–1941) | facility_id = 37224 | owner = Relevant Radio, Inc. | affiliations = Relevant Radio | webcast = | website = }} KHJ (930 kHz) is a commercial AM radio station that is licensed to Los Angeles, California. Owned and operated by Relevant Radio, Inc., the station broadcasts Roman Catholic religious programming as an affiliate of the Relevant Radio network. KHJ broadcasts at 5,000 watts, with a non-directional signal by day but using a directional antenna at night to protect other stations on 930 AM. KHJ's transmitter is triplexed to three of the six towers of KBLA (1580 AM), near the intersection of Sunset Boulevard and Alvarado Street in the Echo Park neighborhood of Los Angeles. Radio station KYPA (1230 AM) also uses two of KBLA's towers for its signal. KHJ's former towers at the intersection of Venice Boulevard and Fairfax Avenue in Mid-City were removed in February 2013. KHJ was a top 40 station from 1965 to 1980. The station switched to a country music radio format in 1980 and back to pop music in 1983. In 1986, KHJ changed its call letters to KRTH, adopting an oldies format as a sister station to KRTH-FM (101.1 FM). Three years later, the station was sold to Liberman Broadcasting who aired Spanish-language formats from 1990 to 2014, using the call letters KKHJ until 2000, when it regained its original calls. History 1920s and 1930s Effective December 1, 1921, the U.S. government adopted regulations formally defining "broadcasting stations". The wavelength of 360 meters (833 kHz) was designated for entertainment broadcasts, while 485 meters (619 kHz) was reserved for broadcasting official weather and other government reports. KHJ was first licensed on March 18, 1922 to C. R. Kierulff & Company in Los Angeles, for operation on the 360 meter entertainment