Licensed to Lamar, South Carolina, United States, the station serves the Florence area.
In addition to the main station, WSIM has been relayed by a translator to widen its broadcast area.
[6] This station played oldies for several years with the slogan "Good Time Rock and Roll".
On April 5, 2022, WSIM and its HD2 subchannel swapped its adult CHR "Star" and variety "Frank" formats.
[8] On May 27, 2022, W298BI launched a classic hip hop format branded as "Jamz 107.5"[9] on its HD-2 subchannel, with Star moving to HD-3.