| Broadcast area | Grand Rapids, Michigan |
|---|---|
| Frequency | 107.3 MHz |
| Branding | Thunder 107.3 |
| Programming | |
| Format | Country |
| Affiliations | Compass Media Networks Westwood One |
| Ownership | |
| Owner |
|
| WKLQ, WHTS, WJRW, WLAV-FM, WWSN | |
| History | |
First air date | 1962 (as WPLB-FM) |
Former call signs | WPLB-FM (1962–1989) WODJ (1989–2004) WKLQ (2004–2009) WBBL-FM (2009–2019) |
Call sign meaning | ThuNdeR |
| Technical information[1] | |
Licensing authority | FCC |
| Facility ID | 24639 |
| Class | B |
| ERP | 50,000 watts |
| HAAT | 150 meters (490 ft) |
Transmitter coordinates | 43°01′08″N 85°20′56″W / 43.019°N 85.349°W |
| Links | |
Public license information | |
| Webcast | Listen live |
| Website | thunder1073.com |
WTNR (107.3 MHz, "Thunder 107.3") is an FM radio station licensed to Greenville, Michigan. Owned by Cumulus Media, the station broadcasts a country music format targeting Grand Rapids.