WFSJ-LP is licensed to operate at the assigned frequency of 103.7 MHz with an effective radiated power output of 52 watts.
Original owner Godstock Ministries was founded by legendary Pittsburgh on-air personality Chris Lash at the turn of the century, mainly geared towards promoting Christian rock concerts in the Indiana County area.
Discovering that a large number of people would turn out for Christian rock acts, Lash believed that the same community would be willing to support a like-formatted radio station.
Godstock applied for the first round of LPFM frequencies in 2002, and on February 24, 2003, WFSJ went on the air as "Fish FM" from studios at 637 Philadelphia Street in Indiana.
After Hilltop Baptist Church acquired the station, WFSJ affiliated with the Fundamental Broadcasting Network, adopting its format of Christian Talk and teaching, and originates very little of its own programming.