| Callsign | KD0UBU |
|---|---|
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2013-01-11 |
| Effective Date | 2020-04-08 |
| Expire Date | 2023-01-11 |
| Cancel Date | 2025-01-14 |
| Last Action Date | 2025-01-14 |
| End Date | 2023-01-11 |
| Available Date | 2025-02-14 |
| Applicant Type | I - Individual |
| Entity Name | Walls, Martin J |
| Street Address / Locality | 39 N Lang O'Fallon, MO 63366 |
| County | St. Charles County |
| Zip Location | 38°51'26.8"N 90°43'31.1"W |
| Maidenhead | EM48pu |
| FRN | 0022336457 |
| Licensee ID/SGIN | L01758375 / 000 |
| Licensee Class | G - General |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 0 / 0 / MO |
| Prev Callsign / Prev Class | T - Technician |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 0006101429 |
| Phonetic weight / Morse weight | 14 / 76 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2013-01-11 | SYSGRT - New Systematic Call Sign Assigned |
| 2013-01-11 | LIISS - License Issued |
| 2013-07-24 | LIAUA - Administrative Update Applied |
| 2014-01-15 | LIMOD - License Modified |
| 2020-04-08 | LIAUA - Administrative Update Applied |
| 2025-01-14 | LIEXP - License Expired |