| Callsign | N4EIO |
| Radio Service | HV - Vanity |
| License Status | A - Active |
| Grant Date | 2021-02-02 |
| Effective Date | 2021-02-02 |
| Expire Date | 2031-03-16 |
| Cancel Date | |
| Last Action Date | 2021-02-02 |
| End Date | 2031-03-16 |
| Available Date | 2033-03-17 |
| Applicant Type | I - Individual |
| Entity Name | MCDONALD SR, DAVID B |
| Street Address / Locality | 105 DOVER CT SMYRNA, TN 371675147 |
| County | Rutherford County |
| Zip Location | 35°57'34.3"N 86°31'53.7"W |
| Maidenhead | EM65rx |
| FRN | 0002641975 |
| Licensee ID/SGIN | L00176663 / 000 |
| Licensee Class | G - General |
| Callsign Group | C - 1x3 |
| ULS/Geo Region | 4 / 4 / TN |
| Prev Callsign / Prev Class | KD4VWN P - Technician Plus |
| Next Callsign | |
| Trustee Callsign / Trustee Name | |
| Vanity Type | E - By List |
| ULS File Number | 0004667833 |
| Phonetic weight / Morse weight | 12 / 46 |