 The 105.9 FM frequency, from its inception in 1960, has had different variations of urban contemporary and jazz formats under different phases throughout its tenure.105.9 FM went on the air on May 26, 1960, as WCHD.WCHD distinguished itself from its R&B-formatted sister station, WCHB, Detroit's first Black-owned-and-operated radio station (then at 1440 AM before moving to 1200 AM, now at 1340 AM), founded by Dr. Haley Bell and Dr. Wendell Cox (hence the call letters WCHB), by playing Jazz.