YO4SX
| Country: | Romania | 
| Callsign details: | Romania, Braila, Constanta, Galati, Tulcea, Vrancea | 
| CQ: | 20 | 
| ITU: | 28 | 
| Latitude: | 44.17 | 
| Longitude: | 28.63 | 
| UTC offset: | -2 | 
| Continent: | EU | 
| Country: | Romania | 
| Callsign details: | Romania, Braila, Constanta, Galati, Tulcea, Vrancea | 
| CQ: | 20 | 
| ITU: | 28 | 
| Latitude: | 44.17 | 
| Longitude: | 28.63 | 
| UTC offset: | -2 | 
| Continent: | EU |