<page_title> Jack FM </page_title> <section_title> Former stations </section_title> <table> <cell> Chicago, Illinois <col_header> Location </col_header> </cell> <cell> WJMK <col_header> Call sign </col_header> </cell> <cell> 104.3 FM <col_header> Frequency </col_header> </cell> <cell> CBS Radio <col_header> Owner </col_header> </cell> </table>
104.3 WJMK station was owned by CBS, an oldies station in Chicago, Illinois.