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CityFlagstaff, Arizona
Broadcast areaFlagstaff, Arizona
BrandingArizona Public Radio
Frequency88.7 MHz
Translator(s)see below
Repeater(s)90.7 KNAA (Show Low)
First air date1983[1]
FormatNews/Talk and Information, and Classical music
ERP100,000 watts
HAAT445 meters (1,460 ft)
Facility ID49490
Transmitter coordinates34°58′7.00″N 111°30′24.00″W / 34.9686111°N 111.5066667°W / 34.9686111; -111.5066667
AffiliationsNational Public Radio, Public Radio International, American Public Media
OwnerNorthern Arizona University
Sister stationsKPUB
WebcastListen Live

KNAU (88.7 FM) is a radio station broadcasting classical music and news/talk and information format. Licensed to Flagstaff, Arizona, United States, KNAU and its sister stations serve the northern Arizona area. The station is currently owned by Northern Arizona University and features programming from National Public Radio, Public Radio International, and American Public Media, among other content providers.

In its early days in the 1960s, it was an unlicensed, low-power AM station, using cobbled-together, non-standard transmitting equipment located on the top of Sechrist Hall dormitory. The format of the station was nominally Top-40 and was entirely student-run, with oversight from a faculty adviser. It solicited advertising to supplement its operating budget. The additional revenue enabled the station to pay nominal salaries to several student staff members.

A prank on-air announcement dismissing classes early for Christmas break due to weather alerted the school's administration to the fact that many students listened to the station. Alarmed and fearing repercussions from higher authorities, in 1969 university officials disbanded the over-the-air feature, sending the signal through carrier current only to on-campus buildings, though that lasted but a few years.

The current KNAU signed on in 1983. Originally licensed as KAXR, it changed its call sign to KNAU before going on the air.


Broadcast translators of KNAU
Call sign Frequency
City of license ERP
Class FCC info
K207DX 89.3 Kingman, Arizona 90 D FCC
K228EA 93.5 Payson, Arizona 10 D FCC
K249EM 97.7 Window Rock, Arizona 10 D FCC
K273AN 102.5 Cottonwood, Arizona 10 D FCC
K291AL 106.1 Prescott, Arizona 10 D FCC


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