| Callsign | W4BTK |
|---|---|
| Radio Service | HV - Vanity |
| License Status | C - Canceled |
| Grant Date | 2020-01-24 |
| Effective Date | 2023-12-14 |
| Expire Date | 2030-01-24 |
| Cancel Date | 2025-04-01 |
| Last Action Date | 2025-04-01 |
| End Date | 2025-04-01 |
| Available Date | 2027-04-02 |
| Applicant Type | I - Individual |
| Entity Name | de Carvalho, Eduardo A |
| Street Address / Locality | 25304 Gray Poplar Ter Aldie, VA 20105 |
| County | Loudoun County |
| Zip Location | 38°57'11.4"N 77°36'12.9"W |
| Maidenhead | FM18ew |
| FRN | 0012907549 |
| Licensee ID/SGIN | L00985095 / 000 |
| Licensee Class | G - General |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 4 / VA |
| Prev Callsign / Prev Class | KM4VVY T - Technician |
| Next Callsign | N4EAC |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | 0010816597 |
| Phonetic weight / Morse weight | 10 / 56 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2020-01-24 | LIISS - License Issued |
| 2020-01-24 | VANGRT - Vanity Call Sign Assigned |
| 2023-12-14 | LIMOD - License Modified |
| 2025-04-01 | LICAN - License Canceled |
FCC comments
| 2025-04-01 | Issued vanity call sign. |