About Marathon Police Frequencies
- 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 Marathon, start with the Lapeer County Simulcast site of Michigan's Public Safety Communications System (MPSCS), about 12 miles away. Its control channels: 853.7625, 853.7875, 853.8125 MHz.
- 2 listed entries are marked encrypted. No scanner can decode encrypted audio.
Lapeer County channels that also cover Marathon
Michigan's Public Safety Communications System (MPSCS)
2 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Lapeer County Law Enforcement | Lapeer County Law Enforcement – Dispatch | 22926 | 598e | D Encrypted |
| Lapeer County Law Enforcement | Lapeer County Law Enforcement – Dispatch | 22927 | 598f | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Marathon.
Lapeer County Simulcast · Michigan's Public Safety Communications System (MPSCS)
RFSS 2 · Site 25 (hex 19) · NAC 795 · about 12 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 15 mi away
Control 853.55, 853.9625
Voice 852.1875, 852.4625, 852.9625, 853.25, 853.4625, 861.0375, 861.0875, 861.4375
Genesee County Simulcast · Michigan's Public Safety Communications System (MPSCS)
RFSS 2 · Site 20 (hex 14) · NAC 798 · about 16 mi away
Control 853.375, 853.3875, 853.8875
Voice 851.075, 851.3125, 851.3875, 851.475, 851.75, 852.35, 852.4, 852.6625, 852.725, 853.15, 853.275, 861.4875
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.