| Callsign | N1JYK |
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2012-03-20 |
| Effective Date | 2012-03-20 |
| Expire Date | 2022-03-20 |
| Cancel Date | 2024-03-21 |
| Last Action Date | 2024-03-21 |
| End Date | 2022-03-20 |
| Available Date | 2024-04-21 |
| Applicant Type | I - Individual |
| Entity Name | GRUNDY, JOHN E |
| Street Address / Locality | 39 EDSON STREET STOW, MA 017751228 |
| County | Middlesex County |
| Zip Location | 42°25'46.9"N 71°30'45.1"W |
| Maidenhead | FN42fk |
| FRN | 0006034425 |
| Licensee ID/SGIN | L00443248 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 1 / 1 / MA |
| Prev Callsign / Prev Class | KA1WVQ P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 9400074954 |
| Phonetic weight / Morse weight | 11 / 72 |