102.5 KNIX is a radio station that broadcasts in a country music format. Its studios are located in Phoenix near Sky Harbor Airport and its transmitter is in South Mountain Park. The station's frequency is 102.5 MHz.The station originally signed on the air on December 25, 1961 as a beautiful music station. Its owners, John and Donna Karshner, also served as on-air staff and programmers. Their son, John P. Karshner II, became one of the youngest DJs in America at age 16. In 1968, singer Buck Owens bought the station and its AM sister in separate transactions. The AM station was country music KTUF and the FM station changed to progressive rock in August 1968. In early March 1969, KNIX-FM switched to the country format and the two stations began simulcast operations. Station bumper-stickers proclaimed "K-TUF/KNIX, We Stamped Out 3-Letter Radio". In 1998 Clear Channel acquired the FM from Owens and continues as a country station.