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CityBay City, Michigan
Broadcast areaSaginaw-Bay City-Midland
SloganPositive & Encouraging
Frequency89.1 MHz
First air dateJuly 1993
FormatContemporary Christian
Power50,000 watts
HAAT113 meters
Facility ID5064
Transmitter coordinates43°33′42″N 83°58′52″W / 43.56167°N 83.98111°W / 43.56167; -83.98111
Former callsignsWTRK (7/23/93-12/18/06)
OwnerEducational Media Foundation

WLKB (89.1 FM) is a radio station broadcasting a contemporary Christian format. Licensed to Bay City, Michigan, it is a member of the K-LOVE radio network. The station's signal reaches from the West Branch area southward to north of Flint and westward to Mount Pleasant.

The station began broadcasting in July 1993 as "The Rock" WTRK, a locally-originating Christian CHR/Rock station. The station was popular in local ratings due to providing an edgier-styled Christian music format not available elsewhere in the area at the time. Sundays included some public affairs programming (including polka music and black gospel). However, with only 2,000 watts of power the station's signal did not reach far outside Bay City.

WTRK dropped local programming in 2004 to affiliate with Educational Media Foundation's Air 1 format. Two years later, EMF purchased the station outright and began the process of upgrading WTRK's signal from 2,000 to 50,000 watts. In December 2006, WTRK swapped programming and calls with K-Love sister station WLKB 90.9 FM licensed to Freeland, Michigan.


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