| Broadcast area | Illinois |
|---|---|
| Frequency | 91.3 (MHz) |
| Branding | Tri States Public Radio |
| Programming | |
| Format | Public broadcasting |
| Affiliations | American Public Media, National Public Radio, Public Radio Exchange |
| Ownership | |
| Owner | Western Illinois University |
| WIUW, WVKC | |
| History | |
First air date | 1956 |
Call sign meaning | Western Illinois University Macomb |
| Technical information | |
Licensing authority | FCC |
| Class | B |
| ERP | 50,000 watts |
| HAAT | 148 meters (486 ft) |
| Links | |
Public license information | |
| Website | Tri States Public Radio |
WIUM (91.3 FM) is a 50,000-watt radio station licensed to Macomb, Illinois, in west-central Illinois. Western Illinois University is the station licensee, authorized by the Federal Communications Commission.