| 394 | 18a | D | Cheyne Co MAC | County Mutual Aid Channel | Interop |
| 395 | 18b | D | Cheyne Co LE 1 | County Law Enforcement 1 | Law Dispatch |
| 396 | 18c | De | Cheyne Co LE 2 | County Law Enforcement 2 | Law Tac |
| 397 | 18d | D | Cheyne Co EMS 1 | EMS 1 | EMS Dispatch |
| 398 | 18e | D | Cheyne Co EMS 2 | EMS 2 | EMS-Talk |
| 399 | 18f | D | Cheyne Co FD 1 | Fire 1 | Fire Dispatch |
| 400 | 190 | D | Cheyne Co FD 2 | Fire 2 | Fire-Tac |
| 401 | 191 | D | Cheyne Co Corner | Coroner | Law Talk |
| 402 | 192 | D | Cheyne Co Hazmat | HAZMAT | Fire-Tac |
| 403 | 193 | D | Cheyne Co PW 1 | Public Works 1 | Public Works |
| 404 | 194 | D | Cheyne Co PW 2 | Public Works 2 | Public Works |
| 405 | 195 | D | Cheyne Co Health | Health Department | Public Works |