About Flynn Police Frequencies
- 2 conventional channels use a digital mode (NXDN48), which needs a scanner that decodes that mode.
- Trunked radio systems that carry law-enforcement traffic here: Michigan's Public Safety Communications System (MPSCS): 2 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 Flynn, start with the Sandusky site of Michigan's Public Safety Communications System (MPSCS), about 11 miles away. Its control channels: 853.4375, 853.9375 MHz.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Sanilac County channels that also cover Flynn
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Sanilac County Sheriff | County Police Dispatch | 155.5350 In 159.0300 | RAN 31 | NXDN48 | WPEX957 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Sanilac County Sheriff | County Police Tactical | 155.9100 | NXDN48 | WPEX957 |
Michigan's Public Safety Communications System (MPSCS)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Sanilac County Sheriff | Sanilac County Sheriff – Dispatch | 12194 | 2fa2 | D |
1 encrypted talkgroup (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Sanilac County Sheriff | Countywide Detectives Common | 32094 | 7d5e | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Flynn.
Sandusky · Michigan's Public Safety Communications System (MPSCS)
RFSS 2 · Site 13 (hex D) · NAC 791 · about 11 mi away
Control 853.4375, 853.9375
Voice 851.9375, 852.4375, 852.9375, 861.5125, 861.5625, 861.9625
Lapeer County Simulcast · Michigan's Public Safety Communications System (MPSCS)
RFSS 2 · Site 25 (hex 19) · NAC 795 · about 20 mi away
Control 853.7625, 853.7875, 853.8125
Voice 851.5875, 851.8375, 852.0625, 852.3125, 852.5375, 852.5625, 852.7625, 853.0625, 853.1125, 853.35, 853.6
Caro · Michigan's Public Safety Communications System (MPSCS)
RFSS 2 · Site 16 (hex 10) · NAC 79C · about 23 mi away
Control 853.55, 853.9625
Voice 852.1875, 852.4625, 852.9625, 853.25, 853.4625, 861.0375, 861.0875, 861.4375
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.
Common questions
What frequency do the police use in Flynn?
We do not have a dispatch channel listed specifically for Flynn. County-level dispatch channels in the same county: Sanilac County Sheriff 155.5350 MHz (RAN 31).