The station first began broadcasting in 1922 at 1200 AM as 10AB before becoming CHAB on December 17, 1933,[1] before moving to 1220 AM in 1941 and to its current dial position at 800 AM in 1946.

CHAB's studios are located alongside its sister stations at 1704 Main Street North in Moose Jaw.

On July 23, 2002, the station switched to its former oldies format with its current slogan "The Greatest Hits Of All Time".

In 2010, the CRTC approved a corporate reorganization to place CHAB, CJAW-FM and CILG-FM under 101142236 Saskatchewan Ltd, a subsidiary of Elmer Hildebrand Ltd.—the majority shareholder of Golden West Broadcasting.

The reorganization was stated to be for estate planning reasons, and that this would not affect the effective control of the station.