Laker Radio is an internet radio station in Sault Ste. Marie, Michigan, United States. Broadcasting a college radio format, The 46th Parallel Radio is the campus radio station of the city's Lake Superior State University, and also provides mobile DJ services for on-campus and Sault Ste. Marie events. From 1993–2017, the station broadcast at 90.1 on the FM dial with the call sign WLSO, before becoming solely an internet radio station during the 2016–2017 school year.