What is "wdso"

WDSO (88.3 FM, "The Rock") is a radio station located at Chesterton High School, in Chesterton, Indiana. The transmitter is located at Chesterton Middle School. WDSO is a non-profit high school station. All of the disc jockeys are high school students, ranging from freshmen to seniors. To be a part of the radio station, students must take the semester long Introduction to Radio/Video class. To become a DJ, the student must complete a series of Learn/Test tasks.