Northern Public Radio Radio Northern Public Radio Visit Website 801 N. First Street DeKalb, IL 60115 (815) 753-9000 (815) 753-9938 (fax) Facebook Twitter Hours: Office hours: Monday through Friday, 8:00am - 4:30pm About About WNIJ (89.5 FM/NPR News) and WNIU (90.5 FM/24-hour Classical music) are public radio stations are the broadcast arm of Northern Illinois University, and provides independent local and national news.