Amateur Radio Callsign: WU4L
|   | WU4L | 
| ROSNER, STUART B Frederick, MD (United States) | |
| License Status | Active | 
|---|---|
| Operator Class | Amateur Extra | 
| Name | ROSNER, STUART B | 
| Granted | 2020-09-09 | 
| Expires | 2030-09-25 | 
| Address | 
 
                 
                