A radio station needs several people to run smoothly. Firstly, there's a DJ who presents the show and plays the music. Then there are journalists who write and report the news. A technician or engineer is always there in case the equipment breaks down. Lastly, the producer organises everything and controls the show.
Working for a radio station is good for those involved. Students gain practical experience that may help them find a job in the future and at the same time they make new friends.