sentences:  In July 1960, the call letters were changed to KHIP and the station aired jazz music programming.Mieuli sold KHIP on July 1, 1962 to Leon Crosby, who had previously owned KHYD in Hayward.Under Leon Crosby's ownership, the station began operating in multiplex stereo and the call letters were changed to KMPX (for "MultiPleX") the following month.