| Callsign | AC0HT |
|---|---|
| Radio Service | HA - Amateur |
| License Status | C - Canceled |
| Grant Date | 2017-01-28 |
| Effective Date | 2017-01-28 |
| Expire Date | 2027-02-16 |
| Cancel Date | 2025-12-09 |
| Last Action Date | 2025-12-09 |
| End Date | 2025-12-09 |
| Available Date | 2027-12-10 |
| Applicant Type | I - Individual |
| Entity Name | Gritzmacher, Donald E |
| Street Address / Locality | 13056 Birch Dr Thornton, CO 80241 |
| County | Adams County |
| Zip Location | 39°55'44.7"N 104°57'15.4"W |
| Maidenhead | DM79mw |
| FRN | 0016116600 |
| Licensee ID/SGIN | L01247138 / 000 |
| Licensee Class | E - Amateur Extra |
| Callsign Group | A - 2x2 |
| ULS/Geo Region | 0 / 0 / CO |
| Prev Callsign / Prev Class | KC0ZNU T - Technician |
| Next Callsign | K2QF |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | |
| Phonetic weight / Morse weight | 10 / 60 |
Administrative History
| Action Date | Action Type |
|---|---|
| 2007-04-18 | LIISS - License Issued |
| 2007-04-18 | SYSGRT - New Systematic Call Sign Assigned |
| 2017-01-28 | LIREN - License Renewed |
| 2025-12-09 | LICAN - License Canceled |
FCC comments
| 2025-12-09 | Issued vanity call sign. |