About New Haven Police Frequencies
- 1 conventional channel uses 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): 8 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 New Haven, start with the Ithaca site of Michigan's Public Safety Communications System (MPSCS), about 6 miles away. Its control channels: 853.3, 853.875 MHz.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Gratiot County channels that also cover New Haven
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Gratiot County Jail | County Jail Operations | 155.7300 In 159.0300 | CC 10 · TG * · SL * | DMR Encrypted | WPHE789 |
Michigan's Public Safety Communications System (MPSCS)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Gratiot County Sheriff | Gratiot County Sheriff – Dispatch | 1256 | 4e8 | D |
| Gratiot County Sheriff | Countywide Narcotics Enforcement Common | 1167 | 48f | D |
| Gratiot County Sheriff | Tactical Operations | 1928 | 788 | D |
| Gratiot County Sheriff | St. Louis Police Proprietary | 1932 | 78c | D |
| Gratiot County Sheriff | LEIN | 1927 | 787 | D |
| Gratiot County Sheriff | Sheriff Administration | 1930 | 78a | D |
| Gratiot County Sheriff | Animal Control | 1935 | 78f | D |
| Gratiot County Sheriff | Sheriff County Jail Operations | 1942 | 796 | D |
Nearest trunked radio sites
Distances are measured from the center of New Haven.
Ithaca · Michigan's Public Safety Communications System (MPSCS)
RFSS 1 · Site 3 (hex 3) · NAC 793 · about 6 mi away
Control 853.3, 853.875
Voice 851.375, 851.575, 851.875, 852.375, 852.875, 860.9125
Rainbow Lake · Michigan's Public Safety Communications System (MPSCS)
RFSS 1 · Site 29 (hex 1D) · NAC 798 · about 9 mi away
Control 853.0625, 853.7875
Voice 769.90625, 773.28125, 851.9875, 854.0375, 854.5375
Alma · Michigan's Public Safety Communications System (MPSCS)
RFSS 1 · Site 33 (hex 21) · NAC 796 · about 12 mi away
Control 852.6375, 853.2625
Voice 769.34375, 772.16875, 851.1375, 851.25, 852.225
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.