Amateur Radio Callsign: KN4JTD
                             
                         | 
                        
                            KN4JTD | 
                    
| 
                            Armstrong, John
                             Orlando, FL (United States)  | 
                    |
| License Status | Active | 
|---|---|
| Operator Class | Technician | 
| Name | Armstrong, John | 
| Granted | 2018-02-14 | 
| Expires | 2028-02-14 | 
| Address |