About Trowbridge Park Police Frequencies
- 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 Trowbridge Park, start with the Marquette site of Michigan's Public Safety Communications System (MPSCS), about 4 miles away. Its control channels: 853.4625, 853.9625 MHz.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Marquette County channels that also cover Trowbridge Park
Michigan's Public Safety Communications System (MPSCS)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Marquette County Law Enforcement | Countywide Narcotics Enforcement Common | 7021 | 1b6d | D |
| Marquette County Law Enforcement | LEIN | 7051 | 1b8b | D |
| Marquette County Law Enforcement | Forsyth Twp. Police Proprietary | 7065 | 1b99 | D |
| Marquette County Law Enforcement | Dispatch Administration | 7070 | 1b9e | D |
| Marquette County Law Enforcement | Sheriff Department Administration | 7072 | 1ba0 | D |
| Marquette County Law Enforcement | Sheriff Department Administration (Intercounty) | 7075 | 1ba3 | D |
| Marquette County Marquette City | Marquette City Police Administration | 7076 | 1ba4 | D |
| Marquette County Law Enforcement | Sheriff Department County Jail | 7071 | 1b9f | D |
1 encrypted talkgroup (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Marquette County Law Enforcement | Marquette County Law Enforcement – Dispatch | 7050 | 1b8a | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Trowbridge Park.
Marquette · Michigan's Public Safety Communications System (MPSCS)
RFSS 6 · Site 6 (hex 6) · NAC 795 · about 4 mi away
Control 853.4625, 853.9625
Voice 851.4625, 851.75, 852.1875, 852.4625
Negaunee · Michigan's Public Safety Communications System (MPSCS)
RFSS 6 · Site 1 (hex 1) · NAC 797 · about 6 mi away
Control 853.5375, 853.875
Voice 851.95, 852.425, 852.9
Dead River · Michigan's Public Safety Communications System (MPSCS)
RFSS 6 · Site 7 (hex 7) · NAC 799 · about 9 mi away
Control 853.4125, 853.9125
Voice 851.325, 851.9125, 852.9125
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.