KDSJ  KDSJ (980 AM) is a radio station broadcasting a full-service format. Licensed to Deadwood, South Dakota, United States, the station serves the Black Hills area. The station is currently owned by 4 Paws Broadcasting, LLC. The station has had several studio locations since its debut in 1947. In 1952, the station moved to its present location, a former funeral home, at 745 Main Street in Deadwood. Its two tower transmitter site is in Boulder Canyon on Radio Tower Road. The station broadcasts with 5,000 watts during the day and 1,000 watts at night. The station's skywave signal was received as far away as Salt Lake City, Utah, on September 21, 2009. In early 2020, the station was purchased for $80,000 by Riverfront Broadcasting. Riverfront owns four FM stations in Rapid City and one AM station.