| Callsign | W4JDF |
| Radio Service | HV - Vanity |
| License Status | E - Expired |
| Grant Date | 2009-01-23 |
| Effective Date | 2009-01-23 |
| Expire Date | 2019-03-25 |
| Cancel Date | 2021-03-26 |
| Last Action Date | 2021-03-26 |
| End Date | 2019-03-25 |
| Available Date | 2021-04-26 |
| Applicant Type | I - Individual |
| Entity Name | WIMMERS, ROBERTA A |
| Street Address / Locality | 2710 GLENGYLE DR VIENNA, VA 22181 |
| County | Fairfax County |
| Zip Location | 38°54'23.9"N 77°17'36.2"W |
| Maidenhead | FM18iv |
| FRN | 0018445411 |
| Licensee ID/SGIN | L01460835 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 4 / VA |
| Prev Callsign / Prev Class | KD4KCT P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | 9903035992 |
| Phonetic weight / Morse weight | 11 / 64 |