| System: | Ohio MARCS (Multi-Agency Radio Communications System) | ||||||
| Type: | Smartnet Type II (Astro-25 Digital) Omnizone | ||||||
| MARCS Zone 1 | MARCS Zone 2 | MARCS Zone 3 | MARCS Zone 4 | ||||
| System ID 1: | 712d | System ID 2: | 6f0f | System ID 3: | 6f16 | System ID 4: | 6f10 |
| Connect Tone: | 128.57 | Connect Tone: | 83.72 | Connect Tone: | 90.0 | Connect Tone: | 97.3 |
| Region: | Central | Region: | North | Region: | South/SW | Region: | East/SE |
| Decimal TGs: | 001-999 | Decimal TGs: | 1000-1999 | Decimal TGs: | 2000-2999 | Decimal TGs: | 3000-4096 |
| Uniden TGs: | 16-15984 | Uniden TGs: | 16000-31984 | Uniden TGs: | 32000-47984 | Uniden TGs: | 48000-65536 |
| Radio Ids: | 1xxxx | Radio Ids: | 2xxxx | Radio Ids: | 3xxxx | Radio Ids: | 4xxxx |
| M/A Calling: | MCALL-1 | M/A Calling: | MCALL-2 | M/A Calling: | MCALL-3 | M/A Calling: | MCALL-4 |
| M/A Ops: | MCOMM-1 | M/A Ops: | MCOMM-2 | M/A Ops: | MCOMM-3 | M/A Ops: | MCOMM-4 |
| Region Counties (21) | Region Counties (36) | Region Counties (17) | Region Counties (14) | ||||
| Auglaize | Mercer | Allen | Mahoning | Adams | Highland | Athens | Jefferson |
| Champaign | Miami | Ashland | Marion | Brown | Jackson | Belmont | Monroe |
| Clark | Montgomery | Ashtabula | Medina | Butler | Lawrence | Carroll | Morgan |
| Darke | Morrow | Columbiana | Ottawa | Clermont | Meigs | Coshocton | Muskingum |
| Delaware | Perry | Crawford | Paulding | Clinton | Pike | Guernsey | Noble |
| Fairfield | Pickaway | Cuyahoga | Portage | Fayette | Scioto | Harrison | Tuscarawas |
| Franklin | Preble | Defiance | Putnam | Gallia | Vinton | Hocking | Washington |
| Knox | Ross | Erie | Richland | Greene | Warren | ||
| Licking | Shelby | Fulton | Sandusky | Hamilton | |||
| Logan | Union | Geauga | Seneca | ||||
| Madison | Hancock | Stark | |||||
| Hardin | Summit | ||||||
| Henry | Trumbull | ||||||
| Holmes | Van Wert | ||||||
| Huron | Wayne | ||||||
| Lake | Williams | ||||||
| Lorain | Wood | ||||||
| Lucas | Wyandot | ||||||