"KJACK (1680 AM) is a student-run college radio station serving the Northern Arizona University campus in Flagstaff, Arizona, USA. The station broadcasts a variety of music in a freeform format, as well as campus and high school sports coverage. The station operates out of the NAU School of Communication on the school's Flagstaff campus."@en . . . . "Your Student Voice"@en . . "KJAK" . "KJACK"@en . .