Harris, who was 65, held a variety of roles at KFGO. He was an on-air personality, producer and podcast host.
"Bob did anything you asked and more. I just wish I would've said 'thank you' more," said KFGO operations manager Joel Heitkamp. "For decades Bob was a part of our lives. And we're better for it."
A Moorhead native whose real name was David Smith, Harris was known in the music community as giving airtime to local bands. He was often seen at community theater and arts events and had performers on his show as guests to promote their shows.
Harris' latest show was the "Harris Happening," which was recently turned into a podcast.
KFGO posted an article on its website saying Harris had a broadcast career of more than 40 years.