| Callsign | KI4RFO |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2026-07-25 |
| Effective Date | 2026-07-27 |
| Expire Date | 2036-09-13 |
| Cancel Date | |
| Last Action Date | 2026-07-27 |
| End Date | 2036-09-13 |
| Available Date | 2038-09-14 |
| Applicant Type | I - Individual |
| Entity Name | JUNG, CHUL HWA |
| Street Address / Locality | 118 DOWNING DR OAK RIDGE, TN 378308790 |
| County | Anderson County |
| Zip Location | 35°57'59.3"N 84°17'26.0"W |
| Maidenhead | EM75ux |
| FRN | 0015496961 |
| Licensee ID/SGIN | L01192142 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / TN |
| Prev Callsign / Prev Class | T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0012129709 |
| Phonetic weight / Morse weight | 14 / 68 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2006-09-13 | SYSGRT - New Systematic Call Sign Assigned |
| 2006-09-13 | LIISS - License Issued |
| 2014-10-17 | LIMOD - License Modified |
| 2016-07-08 | LIREN - License Renewed |
| 2026-07-25 | LIREN - License Renewed |
| 2026-07-27 | LIAUA - Administrative Update Applied |