KTNN

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KTNN
City of license	Window Rock, Arizona
Broadcast area	Navajo Nation and Vicinity
Branding	660 KTNN-AM
Slogan	The Voice of the Navajo Nation
Frequency	660 kHz
First air date	May 20, 1986
Format	Country Music/Navajo Cultural Programming
ERP	50,000 Watts
Class	B
Callsign meaning	K The Navajo Nation
Owner	The Navajo Nation
Website	KTNN Online

KTNN is a Navajo Language AM radio station broadcasting from Window Rock, Arizona, the seat of the government of the Navajo Nation. It broadcasts Country Music in English, but most of its announcers broadcast in Navajo over the air. The station is notable because it was the last AM station to receive a 50,000 watt license before the complete "break-down" of the United States clear channels.

KTNN's daytime signal covers much of the Four Corner states; in contrast, its nighttime signal can be heard throughout most of the western United States, reaching as far away as the California Central Coast and even countries around the Pacific Rim. During nighttime, the station uses a directional antenna to protect WFAN's signal, as required by FCC rules, because WFAN is the dominate station (Class A) on 660 kHz, whereas KTNN is a station of lower class (Class B).