The station, KKPZ, was owned and operated by the Portland Oregon Journal newspaper, and switched to a "Pop Tunes and Oldies" format on June 11, 1970.
KKPZ KKPZ (1330 AM, "The Truth") is a radio station broadcasting a religious radio format. The stations were owned and operated by the Portland Oregon Journal newspaper. In 1932, the station (then known as KTBR and broadcasting on 1300 kHz with 500 watts of power) was purchased by the management of KOIN, and the call letters were changed to KALE. The station's call letters were changed to KPOJ effective June 6, 1948, the date on which sister station KPOJ-FM began broadcasting. On June 9, 1970 KPOJ changed callsigns to KPOK and switched to a "Pop Tunes and Oldies" format. 
