In 1991, the student run CAMO Radio Society incorporated as a non-profit organization and began to prepare an application for a low-power FM licence.

[1] The station began broadcasting that year on FM 103.1 as CKMO-FM, adopting the CKMO call sign (as CA is not among the ITU prefixes assigned to Canada).

The application was approved, and on September 4, CKMO began broadcasting on 900 AM with a power of 10,000 watts, while CJVI took over the 103.1 FM frequency.

[6] From 1928 to 1955, the call letters CKMO were used at a pioneer radio station in Vancouver, which was licensed to the Sprott-Shaw School of Commerce.

On February 1, 1992, CKOC in Hamilton, Ontario dropped its historical call letters and adopted CKMO.