WJJO
| Broadcast area | Madison metropolitan area |
|---|---|
| Frequency | 94.1 MHz |
| Branding | 94.1 JJO |
| Programming | |
| Format | Active rock |
| Ownership | |
| Owner | Mid-West Family Broadcasting |
| WHIT, WJQM, WLMV, WMGN, WOZN, WRIS-FM, WWQM-FM | |
| History | |
First air date | August 1, 1961 (as WTTN-FM at 104.7) |
Former call signs | WTTN-FM (1961–1982) WMLW (1982–1989) WTFX (1989–1991) |
Former frequencies | 104.7 MHz (1961–1972) |
| Technical information | |
Licensing authority | FCC |
| Facility ID | 73142 |
| Class | B |
| ERP | 50,000 watts |
| HAAT | 150 meters (492 ft) |
| Links | |
Public license information | |
| Webcast | Listen Live |
| Website | wjjo.com |
WJJO (94.1 MHz "94-1 JJO") is a commercial FM radio station licensed to Watertown, Wisconsin, and serving the Madison metropolitan area. It has an active rock radio format and is owned by Mid-West Family Broadcasting. Its studios are on Rayovac Drive in Madison.
WJJO is a Class B FM station. It has an effective radiated power (ERP) of 50,000 watts, the maximum for most stations in Southwest Wisconsin. The transmitter is on Wedvick Road in Deerfield.