| Category Name | County | Lat | Lon | Range |
|---|---|---|---|---|
| Radio Technicians | 39.30136 | -76.62346 | 40 | |
| Miscellaneous | 39.30136 | -76.62346 | 40 | |
| Martin State Airport | 39.32537 | -76.41395 | 1 | |
| Harford County Fire/EMS | Harford | 39.57128 | -76.30241 | 20 |
| Harford County Sheriff | Harford | 39.57128 | -76.30241 | 20 |
| Harford County Services | Harford | 39.57128 | -76.30241 | 20 |
| Harford County Town Police | Harford | 39.57128 | -76.30241 | 20 |
| Harford County Schools | Harford | 39.57127 | -76.30241 | 20 |
| Harford County - State of Maryland | Harford | 39.35297 | -77.05928 | 136 |
| Local/Roam | 39.30136 | -76.62346 | 40 |
