The station opened its studios in Denison, Texas, and began as KALK in 1983, but quickly changed the call sign to KLAK in 1984 as "K-Lake FM 105." It aired a Soft Adult Contemporary format, and was nicknamed for its proximity to Lake Texoma in far North Texas. On May 12, 1987, KLAK moved to frequency 97.5 FM in Durant, Oklahoma, wiping out popular rimshot KWTX Waco's DFW signal at 97.5; but on that same day, KMKT was established on 104.9 FM as an oldies station and was branded "Katy Klassics" and later "Katy Oldies". Three years later, the station moved to 93.1 FM in Bells, leaving 104.9 FM dark for six years. KLAK, KMKT, and KWTX are still operational to this day, and although KWTX is still not available to Denison over the air, it is available over the Internet. On August 10, 1996, KTCY-FM, operated by Tony Rodriguez, son of Spanish Radio pioneer Marcos Rodriguez, Sr., began its broadcasting activities under the name "Fab 105", broadcasting all-Beatles music. It was the first Metroplex station to be fully programmed from computer hard drives, and in that case, the station ran jockless through 1997. Tony sold the station to his brother Marcos A. Rodriguez. After March 1997, KTCY switched to an all Gospel station as "Praise 104.9". A year after the swift change, their broadcasting license moved to Pilot Point to increase their signal. In 2000, it was rebranded "Joy 104.9" while maintaining its Gospel format but it soon changed to Spanish Radio. In 2002, Entravision Communications bought out KTCY and reimaged it to a Regional Mexican station as "Super Estrella 104.9". Less than two years later, KTCY and KZMP has swapped call letters and branding, making this station KZMP "104.9 FM El Gato" while maintaining the same format. On January 6, 2005, KZMP was once again rebranded as "Radio Tricolor". Less than 2 years later, Entravision sold five of their Dallas/Fort Worth-area radio stations, including KZMP, to Liberman Broadcasting. Prior to the sale, the station switched to a short-lived Spanish Christian format as La Luz 104.9.
Signal
Unlike most of the area's FM stations, which transmit their signals from Cedar Hill, KZMP-FM transmits its signal from an unincorporated area west of Collinsville. Therefore, KZMP-FM's signal is much stronger in the extreme Northern parts of the Dallas/Fort Worth Metroplex as well as the cities of Decatur, Bowie, Gainesville, Sherman and Bonham, to as far north as Ardmore, Oklahoma, but is considerably weaker in Dallas, Fort Worth, and areas South of the cities themselves.