The station airs a conservative talk radio format and is owned and operated by Kemp Broadcasting & Digital Media.
[2][3] It was granted by the Federal Communications Commission (FCC) with construction permit to decrease its daytime power to 25,000 watts from the original 30,000.
Because AM 670 is a clear channel frequency reserved for Class A WSCR Chicago, KMZQ must reduce its nighttime power to 600 watts, using a non-directional antenna.
[4] On weekdays, KMZQ has a local news and interview show in morning drive time hosted by Kevin Wall.
On October 26, 2004, the station changed its call sign to KBTB and on July 29, 2008 to the current KMZQ.