| Callsign | KC3OSG |
|---|---|
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2020-01-14 |
| Effective Date | 2026-04-18 |
| Expire Date | 2030-01-14 |
| Cancel Date | |
| Last Action Date | 2026-04-18 |
| End Date | 2030-01-14 |
| Available Date | 2032-01-15 |
| Applicant Type | I - Individual |
| Entity Name | Donaldson, David B |
| Street Address / Locality | 11 Granary Dr. Pikesville, MD 21208 |
| County | Baltimore County |
| Zip Location | 39°23'11.1"N 76°43'16.1"W |
| Maidenhead | FM19pj |
| FRN | 0027756899 |
| Licensee ID/SGIN | L02205612 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 3 / 3 / MD |
| Prev Callsign / Prev Class | T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0010062000 |
| Phonetic weight / Morse weight | 11 / 76 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2020-01-14 | SYSGRT - New Systematic Call Sign Assigned |
| 2020-01-14 | LIISS - License Issued |
| 2022-05-23 | LIMOD - License Modified |
| 2026-04-18 | LIAUA - Administrative Update Applied |