| Callsign | KF6JSA |
| Radio Service | HA - Amateur |
| License Status | E - Expired |
| Grant Date | 2008-05-28 |
| Effective Date | 2008-05-28 |
| Expire Date | 2018-05-28 |
| Cancel Date | 2020-05-29 |
| Last Action Date | 2020-05-29 |
| End Date | 2018-05-28 |
| Available Date | 2020-06-29 |
| Applicant Type | I - Individual |
| Entity Name | CONSTANTINE IV Mr., ROBERT A |
| Street Address / Locality | 3844 MT ALBERTINE AVE SAN DIEGO, CA 92111 |
| County | San Diego County |
| Zip Location | 32°48'23.2"N 117°10'08.0"W |
| Maidenhead | DM12jt |
| FRN | 0017808643 |
| Licensee ID/SGIN | L01403380 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 6 / 6 / CA |
| Prev Callsign / Prev Class | |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 9703198555 |
| Phonetic weight / Morse weight | 13 / 70 |