From 1982–2019, KKCK was on FM 99.7 MHz, but moved to FM 94.7 MHz on April 3, 2019.
History
First three decades as 99.7 KKCK
The station first signed on in 1975 as KMHL-FM (100.1) with a country music format, before switching to Top 40 (CHR) in 1982. KKCK debuted automated with TM Programming's "Stereo Rock" Top 40 format briefly, then converted to fully local programming in the mid-1980s. After the call letter change to KKCK in 1982, the station changed its slogan to "KK100," also known as "Double K 100." KKCK later changed its name to "Fun 100" in the mid-1980s. In 1988, it adopted "FM 100 KKCK" as its slogan after upgrading from 3,000 watts at 100.1 FM to 100,000 watts at 99.7 FM. The station repositioned as "99-7 KKCK" with the "Always A Better Music Mix" slogan in 1992. The station had significant listenership in the Sioux Falls, South Dakota market during the 1990s, despite its transmitter tower being located over 50 miles away, as it was the de facto Top 40/CHR for Sioux Falls until KKLS-FM flipped to "Hot 104.7" in 1997. While KKCK continues to be a minor factor in the Sioux Falls market, the station primarily focuses on Marshall, Minnesota, the surrounding southwestern Minnesota region, and the nearby Brookings, South Dakota area.
A winter storm damaged KKCK's transmitter in December 2015, and the station would broadcast at reduced power for nearly two years. In May 2017, KKCK's programming moved to KNSG (94.7 FM) while the transmitter is being rebuilt. KKCK returned to full power at 99.7 FM around November 2017, with the classic hits format resuming at KNSG.
Frequency swap with KARZ
On October 16, 2017, KNSG changed their call letters to KARZ.[3]
On April 3, 2019, the heritageTop 40/CHR-formatted KKCK moved to the more eastern signal of the Springfield licensed 94.7 FM, with a fringe signal coverage of Mankato, swapping frequencies with classic hits-formatted KARZ, which moved to the larger coverage area, and the more western signal, of 99.7 FM.[4] KARZ plays many of the songs now included in the classic hits format during KKCK's early years as a Top 40/CHR, and KKCK adopted the "Today's Hit Music" slogan with no format changes.
In December 2023 KKCK dropped its Top 40/CHR format and began stunting with Christmas music as "K-Santa 94.7".[5] However, on December 26, 2023, KKCK reverted to its Top 40/CHR format.