| Broadcast area | Mayville–Portland/Grand Forks/Fargo–Moorhead |
|---|---|
| Frequency | 1520 kHz |
| Branding | 99KMSR |
| Programming | |
| Format | Sports |
| Affiliations | Fox Sports Radio |
| Ownership | |
| Owner | KMSR, Inc. |
| KMAV-FM | |
| History | |
First air date | October 20, 1967 |
Former call signs | KMAV (until 2008) |
| Technical information[1] | |
Licensing authority | FCC |
| Facility ID | 54336 |
| Class | D |
| Power | 1,500 watts (daytime only) |
Transmitter coordinates | 47°29′57″N 97°21′03″W / 47.49917°N 97.35083°W |
| Translator(s) | 98.9 K255DG (Mayville) |
| Links | |
Public license information | |
| Website | KMSR Online |
KMSR (1520 AM) is a radio station in Mayville, North Dakota, licensed to Northwood, serving the Red River Valley of eastern North Dakota and northwest Minnesota. Formerly known as "Sports Radio 1520", KMSR rebranded as "99KMSR" upon launching an FM translator in late 2020. KMSR 1520 AM is on the air in the daytime only, so it signs off at sunset, and signs on again at sunrise. Its translator, K255DG, operates 24 hours a day on 98.9 FM.