KMCK-FM

KMCK-FM (105.7 FM) is a commercial radio station broadcasting a contemporary hit 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.^[2]

KMCK-FM

Prairie Grove, Arkansas United States
Broadcast area	Northwest Arkansas
Frequency	105.7 MHz
Branding	Power 105.7
Programming
Language	English
Format	Contemporary hit radio
Affiliations	Westwood One
Ownership
Owner	Cumulus Media (Cumulus Licensing LLC)
Sister stations	KAMO-FM KFAY KKEG KQSM-FM KRMW KYNG
History
First air date	1947 (78 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
Links
Public license information	Public file LMS
Webcast	Listen live Listen live (via Audacy) Listen live (via iHeartRadio)
Website	www.power1057.com

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.

History

It signed on the air in 1947, as KUOA-FM, owned by John Brown University in Siloam 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.^[5]