WTLX
| Broadcast area | Madison metropolitan area |
|---|---|
| Frequency | 100.5 MHz |
| Branding | 100.5 FM ESPN |
| Programming | |
| Format | Sports |
| Affiliations | ESPN Radio Milwaukee Brewers Milwaukee Bucks Madison Mallards |
| Ownership | |
| Owner | Good Karma Brands |
| WTMJ, WBEV, WBEV-FM, WKTI, WMVP | |
| History | |
First air date | July 16, 1990 (as WYKY) |
Former call signs | WWAM (1989–1990) WYKY (1990–1998) |
Call sign meaning | From the station's previous hot TaLk format, "100 X" |
| Technical information | |
Licensing authority | FCC |
| Facility ID | 4477 |
| Class | A |
| ERP | 6,000 watts |
| HAAT | 55 meters (180 ft) |
| Links | |
Public license information | |
| Webcast | Listen Live |
| Website | espnwisconsin.com |
WTLX (100.5 FM "100.5 FM ESPN") is a commercial radio station licensed to Monona, Wisconsin, and serving the Madison metropolitan area. The station is owned by Good Karma Broadcasting, LLC, and runs a sports radio format as a network affiliate of ESPN Radio. It shares most programming with Milwaukee-based sister station WKTI-FM, identifying jointly on air as ESPN Wisconsin.
WTLX is a Class A FM station, with an effective radiated power (ERP) of 6,000 watts. The transmitter is off Tower Road, using an antenna on the water tower at the Mendota Mental Health Institute in Madison. The studios are in the SPARK Building on East Washington Avenue in downtown Madison.