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| Broadcast area | Northwest Arkansas including Fayetteville and Bentonville |
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| Frequency | 105.7 MHz |
| Branding | Power 105.7 |
| Programming | |
| Format | Top 40 (CHR) |
| Affiliations | Westwood One |
| Ownership | |
| Owner |
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| History | |
First air date | 1947; 77 years ago (1947) |
| Technical information[1] | |
Licensing authority | FCC |
| Facility ID | 64630 |
| Class | C1 |
| ERP | 100,000 watts |
| HAAT | 145 meters (476 ft) |
Transmitter coordinates | 36°11′7″N 94°17′49″W / 36.18528°N 94.29694°W / 36.18528; -94.29694 |
| Links | |
Public license information |
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| Webcast | Listen Live |
| Website | power1057 |
KMCK-FM (105.7 MHz) is a commercial radio station broadcasting a top 40 (CHR) radio format. The station is licensedtoPrairie Grove, Arkansas, and serves Northwest Arkansas. It is known as "Power 105.7" and is owned by Cumulus Media.[2]
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.[3] Its signal reaches parts of Arkansas, Oklahoma and Missouri.
Itsigned on the air in 1947 as KUOA-FM, owned by John Brown UniversityinSiloam Springs, Arkansas.[4] 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.
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