Amateur Radio Callsign: KY4SJ
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KY4SJ |
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Byun, Soo Duk
Morrisville, NC (United States) |
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| License Status | Active |
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| Operator Class | Amateur Extra |
| Name | Byun, Soo Duk |
| Granted | 2021-07-02 |
| Expires | 2031-07-02 |
| Address |