Following eligibility lists contain AC4OB
 Club  | Timestamp | Geo Type | Club Ctr | Call | Grid | Distance |
| Potomac Valley Radio Club | 2016-11-04 15:32:34 | 175 mile circle | FM17bk | AC4OB | FM17fm | 19.2 |
| Potomac Valley Radio Club | 2016-10-22 13:16:27 | 175 mile circle | FM17bk | AC4OB | FM17fm | 19.2 |
| Potomac Valley Radio Club | 2016-10-19 10:04:26 | 175 mile circle | FM17bk | AC4OB | FM17fm | 19.2 |