About Richfield Police Frequencies
- 6 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
- 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 Richfield, start with the St. Helen site of Michigan's Public Safety Communications System (MPSCS), about 4 miles away. Its control channels: 853.2125, 853.6375 MHz.
Roscommon County channels that also cover Richfield
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Kirtland Community College | Public Safety – Dispatch | 154.8750 In 158.9100 | 103.5 PL | FMN | WPDC665 |
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Gerrish Township | Gerrish Coordination of Public Safety Operations | 155.8800 In 158.9550 | 71.9 PL | FMN | WPPX291 |
| Kirtland Community College | Department of Public Safety | 154.0250 | FMN | WPDC665 | |
| Kirtland Community College | Department of Public Safety | 155.7900 | FMN | WPDC665 | |
| Kirtland Community College | Department of Public Safety | 159.1500 | FMN | WPDC665 | |
| Kirtland Community College | Department of Public Safety | 159.2250 | FMN | WPDC665 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Roscommon County Jail | County Jail Operations | 458.7000 | DMR | WQKM358 |
Michigan's Public Safety Communications System (MPSCS)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Roscommon County Law Enforcement | Roscommon County Law Enforcement – Dispatch | 4069 | fe5 | D |
| Roscommon County Law Enforcement | Countywide Narcotics Enforcement Common | 4027 | fbb | D |
| Roscommon County Law Enforcement | County Jail | 4140 | 102c | D |
| Roscommon County Law Enforcement | Roscommon County Law Enforcement – Tactical Channel | 4147 | 1033 | D |
| Roscommon County Law Enforcement | Sheriff Corrections Division 2 | 5382 | 1506 | D |
| Roscommon County Law Enforcement | LEIN / Police Alerts | 4134 | 1026 | D |
| Roscommon County Law Enforcement | Gerrish Twp. Police Proprietary | 4143 | 102f | D |
| Roscommon County Law Enforcement | Richfield Twp. Police Proprietary | 4145 | 1031 | D |
Nearest trunked radio sites
Distances are measured from the center of Richfield.
St. Helen · Michigan's Public Safety Communications System (MPSCS)
RFSS 4 · Site 18 (hex 12) · NAC 790 · about 4 mi away
Control 853.2125, 853.6375
Voice 851.275, 851.6625, 852.3125, 852.6875, 859.8125
Damon · Michigan's Public Safety Communications System (MPSCS)
RFSS 1 · Site 17 (hex 11) · NAC 796 · about 14 mi away
Control 853.4125, 853.9125
Voice 851.175, 851.9125, 852.9125, 860.9125
Grayling · Michigan's Public Safety Communications System (MPSCS)
RFSS 4 · Site 17 (hex 11) · NAC 792 · about 19 mi away
Control 852.825, 853.2625
Voice 851.075, 851.75, 852.075, 852.75, 853.0375, 853.8375, 854.0125, 854.8125, 855.4625, 855.5125, 859.8625, 860.8625
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.