| Callsign | KR4HYR |
|---|---|
| Radio Service | HA - Amateur |
| License Status | C - Canceled |
| Grant Date | 2025-12-04 |
| Effective Date | 2025-12-04 |
| Expire Date | 2035-12-04 |
| Cancel Date | 2026-08-21 |
| Last Action Date | 2026-08-21 |
| End Date | 2026-08-21 |
| Available Date | 2028-08-22 |
| Applicant Type | I - Individual |
| Entity Name | Grinwis, John E |
| Street Address / Locality | 736 COTTBUS AVE NW PALM BAY, FL 329079308 |
| County | Brevard County |
| Zip Location | 28°01'15.4"N 80°40'47.2"W |
| Maidenhead | EL98pa |
| FRN | 0037648284 |
| Licensee ID/SGIN | L02984935 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | D - 2x3 |
| ULS/Geo Region | 4 / 4 / FL |
| Prev Callsign / Prev Class | |
| Next Callsign | KR4KKK |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 14 / 72 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2025-12-04 | SYSGRT - New Systematic Call Sign Assigned |
| 2025-12-04 | LIISS - License Issued |
| 2026-08-21 | LICAN - License Canceled |
FCC comments
| 2026-08-21 | Issued vanity call sign. |