| Callsign | N9SYS |
| Radio Service | HA - Amateur |
| License Status | A - Active |
| Grant Date | 2023-08-22 |
| Effective Date | 2023-08-22 |
| Expire Date | 2033-08-22 |
| Cancel Date | |
| Last Action Date | 2023-08-22 |
| End Date | 2033-08-22 |
| Available Date | 2035-08-23 |
| Applicant Type | I - Individual |
| Entity Name | DRENGENBERG, DAVID P |
| Street Address / Locality | 1411 Linden NORTHBROOK, IL 60062 |
| County | Cook County |
| Zip Location | 42°07'34.6"N 87°50'42.3"W |
| Maidenhead | EN62bd |
| FRN | 0008473597 |
| Licensee ID/SGIN | L00641971 / 000 |
| Licensee Class | T - Technician |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 9 / 9 / IL |
| Prev Callsign / Prev Class | KB9IGN P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | |
| ULS File Number | 9400639579 |
| Phonetic weight / Morse weight | 13 / 60 |