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City Ames, Iowa
Broadcast area Central Iowa
Frequency 90.1 MHz
First air date December 1, 1949
Format News, Adult Alternative
ERP 100,000 watts
HAAT 454 meters
Class C
Facility ID 29118
Transmitter coordinates 41°48′33″N 93°36′54″W / 41.80917°N 93.61500°W / 41.80917; -93.61500Coordinates: 41°48′33″N 93°36′54″W / 41.80917°N 93.61500°W / 41.80917; -93.61500
Callsign meaning from sister station WOI
Affiliations NPR, American Public Media
Owner Iowa State University
Sister stations WOI (AM)
Webcast [1]
Website Iowa Public Radio

WOI-FM (90.1 FM) is a radio station licensed to Ames, serving the greater Ames/Des Moines area. The station is owned by Iowa State University. WOI-FM is an affiliate of Iowa Public Radio, and carries IPR's "News and Studio One" service—a mix of National Public Radio news programming and adult alternative music.

WOI-FM first hit the airwaves on December 1, 1949. It was originally a full-time simulcast of WOI-AM. The two stations went their separate ways in the 1960s.

Until the formation of Iowa Public Radio in 2004, WOI-FM was the flagship station for a mini-network of FM stations in central Iowa, including KWOI in Carroll and KTPR in Fort Dodge.

For most of the time since the formation of NPR, WOI-FM aired a mix of classical music and NPR news and talk programming, simulcasting many programs with its AM sister. Shortly after midnight on September 10, 2012, IPR switched WOI-FM's format to the News and Studio One service. The classical service moved to WOI-FM's second digital subcarrier. For those without HD Radio, classical music continues to be heard in portions of central Iowa on five full-power stations that between them cover most of the region.

HD Programming[edit]

WOI-FM broadcasts two digital channels in the HD Radio (hybrid) format.[1]

External links[edit]


  1. ^ http://hdradio.com/station_guides/widget.php?id=91 HD Radio Guide for Des Moines, Iowa