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City of license Middletown, Ohio
Broadcast area Cincinnati, Ohio
Dayton, Ohio
Slogan Public Radio That Rocks
Frequency 105.9 MHz
First air date 1959
Format Adult album alternative (WNKU simulcast)
Audience share 1.8 (Sp'08 P2, R&R[1])
ERP 34,000 watts
HAAT 181 meters
Class B
Facility ID 54833
Transmitter coordinates 39°30′57.00″N 84°21′5.00″W / 39.5158333°N 84.3513889°W / 39.5158333; -84.3513889
Callsign meaning Northern KeNtucky University[2]
Former callsigns WPBF-FM (1985-1988)
WPFB-FM (1988-2011)
Affiliations National Public Radio, PRI, Corporation for Public Broadcasting, Kentucky Public Radio
Owner Northern Kentucky University
Sister stations WPFB (AM), WNKU, WNKE
Webcast Listen Live
Website wnku.org

WNKN (105.9 FM) (formerly WPFB-FM) is a radio station broadcasting an adult album alternative format. Licensed to Middletown, Ohio, USA, the station serves the Cincinnati and Dayton areas. The station is currently owned by Northern Kentucky University and is simulcasting WNKU 89.7 FM.[3][4]


WPFB-FM first signed on in 1959. WPFB-FM was the first FM station in Ohio and the 13th in the United States to broadcast in stereo. Like its AM sister,WPFB-FM had several format changes over the years. It was a soul gospel music format in the late 1970s switching to soft adult contemporary WPBF "Mellow 106" in the early 1980s, then switching again to new rock in 1984, southern gospel in 1986 and bluegrass music in 1988 when the calls were switched back to WPFB-FM where it has maintained a country music format since.

Switch to Public Radio[edit]

Beginning on February 1, 2011; WPFB-FM, along with its sister station WPAY-FM 104.1 in Portsmouth, Ohio, began simulcasting the signal of Northern Kentucky University-owned WNKU. At that time, WPFB and WPAY switched from a country format to an adult album alternative (AAA) format. [5] The sale was approved by the FCC on June 20, 2011 and the station officially changed their call letters to WNKN on that date.


WPFB-FM logo.png

See also[edit]


External links[edit]