About Marquette Police Frequencies
- 2 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
- Trunked radio systems that carry law-enforcement traffic here: Michigan's Public Safety Communications System (MPSCS): 7 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 Marquette, start with the Hessel site of Michigan's Public Safety Communications System (MPSCS), about 5 miles away. Its control channels: 853.5375, 853.95 MHz.
- 6 listed entries are marked encrypted. No scanner can decode encrypted audio.
Mackinac County channels that also cover Marquette
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Michigan State DNR | DNR – Operations (Mackinaw Island) | 151.1750 In 159.2550 | 173.8 PL | FMN | KFT532 |
| Michigan State DNR | DNR | 159.3450 | FMN | KFT532 |
Michigan's Public Safety Communications System (MPSCS)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Mackinac County Law Enforcement | Mackinac County Law Enforcement – Dispatch | 6066 | 17b2 | D |
6 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Mackinac County Law Enforcement | Countywide Narcotics Enforcement Common | 6025 | 1789 | D Encrypted |
| Mackinac County Law Enforcement | Court Officers | 6048 | 17a0 | D Encrypted |
| Mackinac County Law Enforcement | Police Operations | 6061 | 17ad | D Encrypted |
| Mackinac County Law Enforcement | LEIN | 6062 | 17ae | D Encrypted |
| Mackinac County Law Enforcement | Sheriff Proprietary | 6063 | 17af | D Encrypted |
| Mackinac County Law Enforcement | St. Ignace Police Proprietary | 6065 | 17b1 | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Marquette.
Hessel · Michigan's Public Safety Communications System (MPSCS)
RFSS 5 · Site 12 (hex C) · NAC 796 · about 5 mi away
Control 853.5375, 853.95
Voice 851.9875, 852.475, 852.9625
Mackinac Island · Michigan's Public Safety Communications System (MPSCS)
RFSS 5 · Site 32 (hex 20) · NAC 793 · about 16 mi away
Control 853.325, 853.8125
Voice 851.8125, 852.3375, 852.8375
St. Ignace · Michigan's Public Safety Communications System (MPSCS)
RFSS 5 · Site 11 (hex B) · NAC 79A · about 18 mi away
Control 853.475, 853.975
Voice 851.975, 852.5875, 852.975, 861.0125
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.