| Callsign | AF4UD |
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 1998-04-29 |
| Effective Date | 2000-05-18 |
| Expire Date | 2008-04-29 |
| Cancel Date | 2010-04-30 |
| Last Action Date | 2010-04-30 |
| End Date | 2008-04-29 |
| Available Date | 2010-05-31 |
| Applicant Type | I - Individual |
| Entity Name | HAMMEL, GARY A |
| Street Address / Locality | 3025 WINDY HILL RD HAINES CITY, FL 33844 |
| County | Polk County |
| Zip Location | 28°05'22.5"N 81°35'21.8"W |
| Maidenhead | EL98ec |
| FRN | 0003035946 |
| Licensee ID/SGIN | L00169530 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | A - 2x2 |
| ULS/Geo Region | 4 / 4 / FL |
| Prev Callsign / Prev Class | KF4YEM P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 11 / 54 |