| KDSR | |
| City: | Williston, North Dakota |
| Area: | Williston-Sidney |
| Branding: | 101.1 Jack FM |
| Frequency: | 101.1 MHz |
| Airdate: | February 28, 1985[1] |
| Format: | Adult hits |
| Erp: | 100,000 watts |
| Class: | C1 |
| Facility Id: | 56970 |
| Coordinates: | 48.0583°N -104°W |
| Affiliations: | Jack FM network |
| Owner: | The Marks Group |
| Licensee: | Williston Community Broadcasting Corp. |
| Sister Stations: | KGCX, KXWI |
| Webcast: | Listen Live |
| Licensing Authority: | FCC |
KDSR (101.1 FM, "101.1 Jack FM") is a Class C1 radio station licensed to serve Williston, North Dakota. The station is owned by Marks Radio Group,[2] and licensed to Williston Community Broadcasting Corp. (dba KDSR-FM). It airs an adult hits music format.[3]
The station studios are at 910 E Broadway in Williston.
The station was assigned the KDSR call letters by the Federal Communications Commission on August 30, 1984.[4]