DS4OMS
| Country: | South Korea |
| Callsign details: | South Korea, Cheju do, Cholla bukto, Cholla namdo |
| CQ: | 25 |
| ITU: | 44 |
| Latitude: | 33 |
| Longitude: | 126 |
| UTC offset: | -9 |
| Continent: | AS |
| Country: | South Korea |
| Callsign details: | South Korea, Cheju do, Cholla bukto, Cholla namdo |
| CQ: | 25 |
| ITU: | 44 |
| Latitude: | 33 |
| Longitude: | 126 |
| UTC offset: | -9 |
| Continent: | AS |