| KMCK-FM | |
| City: | Prairie Grove, Arkansas |
| Area: | Northwest Arkansas including Fayetteville and Bentonville |
| Branding: | Power 105.7 |
| Frequency: | 105.7 MHz |
| Format: | Top 40 (CHR) |
| Haat: | 145m (476feet) |
| Class: | C1 |
| Licensing Authority: | FCC |
| Facility Id: | 64630 |
| Coordinates: | 36.1853°N -94.2969°W |
| Affiliations: | Westwood One |
| Owner: | Cumulus Media |
| Licensee: | Cumulus Licensing LLC |
| Webcast: | Listen Live |
KMCK-FM (105.7 MHz) is a commercial radio station broadcasting a top 40 (CHR) radio format. The station is licensed to Prairie Grove, Arkansas, and serves Northwest Arkansas. It is known as "Power 105.7" and is owned by Cumulus Media.[1]
KMCK has an effective radiated power (ERP) of 100,000 watts, the maximum for non-grandfathered FM stations. The transmitter is off Liberty Avenue in Tontitown, Arkansas.[2] Its signal reaches parts of Arkansas, Oklahoma and Missouri.
It signed on the air in 1947 as KUOA-FM, owned by John Brown University in Siloam Springs, Arkansas.[3] It was originally powered at 2,600 watts, a fraction of its current output.
The station was previously known as “Night Flight 106” and later “K106” in 1981 running a Top 40 format. In the mid-1980s, the station’s format was updated to Hot Adult Contemporary. The station returned back to its Top 40 format on July 30, 1989.