WNDZ (750 AM) is a radio station broadcasting a brokered programming or "time-buy" and "blocktime" format licensed to Portage, Indiana, United States and serving the Chicago area.
WNDZ (750 AM) is a radio station broadcasting a brokered programming format. Brokered programming (also known as time-buy and blocktime) is a form of broadcast content in which the show's producer pays a radio or television station for air time, rather than exchanging programming for pay or the opportunity to play spot commercials. Licensed to Portage, Indiana, United States, it serves the Chicago area. 
