About Nottawa Police Frequencies
- 2 conventional channels use a digital mode (DMR), which needs a scanner that decodes that mode.
- Trunked radio systems that carry law-enforcement traffic here: Michigan's Public Safety Communications System (MPSCS): 9 talkgroups. A trunking scanner is required, and it must support the system type shown.
- To follow a trunked system, program a control channel first. For Nottawa, start with the Mount Pleasant (Beal) site of Michigan's Public Safety Communications System (MPSCS), about 4 miles away. Its control channels: 853.35, 853.475 MHz.
Isabella County channels that also cover Nottawa
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Central Michigan University Police | Night Rides/Parking | 154.8000 | DMR | WPJQ801 | |
| Central Michigan University Police | Police Parking Enforcement | 155.5725 In 154.0325 | CC 6 · TG 245 · SL * | DMR | WQDZ518 |
Michigan's Public Safety Communications System (MPSCS)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Isabella County Sheriff | Isabella County Sheriff – Dispatch | 3280 | cd0 | D |
| Isabella County Sheriff | Saginaw Chippewa Tribal Police Dispatch | 3832 | ef8 | D |
| Isabella County Sheriff | Countywide Narcotics Enforcement Common | 3081 | c09 | D |
| Isabella County Sheriff | Isabella County Sheriff – Tactical Channel | 13177 | 3379 | D |
| Isabella County Sheriff | Tactical Operations | 13185 | 3381 | D |
| Isabella County Sheriff | Saginaw Chippewa Tribal Police Tactical | 13186 | 3382 | D |
| Isabella County Sheriff | LEIN | 13176 | 3378 | D |
| Isabella County Sheriff | County Jail | 23799 | 5cf7 | D |
| Isabella County Sheriff | Court Officers | 23887 | 5d4f | D |
Nearest trunked radio sites
Distances are measured from the center of Nottawa.
Mount Pleasant (Beal) · Michigan's Public Safety Communications System (MPSCS)
RFSS 3 · Site 23 (hex 17) · NAC 790 · about 4 mi away
Control 853.35, 853.475
Voice 851.1625, 851.975, 852.3375, 852.475, 852.975, 853.375, 853.725, 856.2875, 856.5375, 856.6375
Mount Pleasant · Michigan's Public Safety Communications System (MPSCS)
RFSS 3 · Site 55 (hex 37) · NAC 796 · about 10 mi away
Control 853.325, 853.7
Voice 770.44375, 770.94375, 851.2125, 851.7375, 852.1125, 852.6125
Lake · Michigan's Public Safety Communications System (MPSCS)
RFSS 3 · Site 22 (hex 16) · NAC 793 · about 15 mi away
Control 853.4625, 853.9625
Voice 851.4625, 852.1875, 852.4625, 852.9625, 854.7625, 856.8375, 857.1125, 857.4125
What do these numbers mean?
- Control channel
- The frequency your scanner listens to first. It tells the scanner where each voice call is happening, so program it before anything else.
- Voice
- The other frequencies the site uses for calls. A trunking scanner follows them automatically once it has the control channel.
- Site
- One tower location of the system. Scanners show the number in decimal or hex, so both are listed.
- RFSS (Radio Frequency Sub-System)
- A group of sites run by the same controller. Large Project 25 systems can have several.
- NAC (Network Access Code)
- A hex code the site transmits. Your scanner can use it to ignore other systems on the same frequency.
- Talkgroup
- A virtual channel on a trunked system, such as one agency’s dispatch. Programming uses the decimal or hex number, depending on your scanner.