About Grass Lake charter Police Frequencies
- 5 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): 19 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 Grass Lake charter, start with the Jackson County Simulcast site of Michigan's Public Safety Communications System (MPSCS), about 11 miles away. Its control channels: 851.775, 852.1875, 853.175 MHz.
- 5 listed entries are marked encrypted. No scanner can decode encrypted audio.
Jackson County channels that also cover Grass Lake charter
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| State of Michigan | Parnall Correctional Facility | 153.8150 In 154.9050 | 250.3 PL | FMN | WNJL686 |
| State of Michigan | Cooper Street Correctional Facility | 154.0250 In 155.4750 | 167.9 PL | FMN | KGN500 |
| State of Michigan | Charles Egeler Reception and Guidance center (RGC) Prison | 154.0550 In 155.7300 | 466 DPL | FMN | WPYR898 |
| State of Michigan | Cooper Street Correctional Facility | 155.0700 In 156.1200 | 223 DPL | FMN | WPNP727 |
| State of Michigan | Cotton Correctional Facility | 155.0850 In 158.8500 | 131.8 PL | FMN | WNFC816 |
Michigan's Public Safety Communications System (MPSCS)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Jackson County Law Enforcement | Countywide Police Dispatch | 1237 | 4d5 | D |
| Jackson County Law Enforcement | Jackson City Police Dispatch | 11169 | 2ba1 | D |
| Jackson County Law Enforcement | Jackson Narcotics Enforcement Team Tactical | 1171 | 493 | D |
| Jackson County Law Enforcement | 12th District Court | 11171 | 2ba3 | D |
| Jackson County Law Enforcement | Friend of the Court | 11186 | 2bb2 | D |
| Jackson County Law Enforcement | Juvenile Court | 11193 | 2bb9 | D |
| Jackson County Law Enforcement | LEIN | 11194 | 2bba | D |
| Jackson County Law Enforcement | Columbia Twp Police Proprietary | 11195 | 2bbb | D |
| Jackson County Law Enforcement | Jackson City Police Proprietary | 11197 | 2bbd | D |
| Jackson County Law Enforcement | Jackson County Sheriff Proprietary | 11198 | 2bbe | D |
| Jackson County Law Enforcement | Napoleon Twp Police Proprietary | 11200 | 2bc0 | D |
| Jackson County Law Enforcement | Spring Arbor Twp Police Proprietary | 11201 | 2bc1 | D |
| Jackson County Law Enforcement | Springport Twp Police Proprietary | 11202 | 2bc2 | D |
| Jackson County Law Enforcement | Courts | 11166 | 2b9e | D |
5 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Jackson County Law Enforcement | Detective Tactical | 11170 | 2ba2 | D Encrypted |
| Jackson County Law Enforcement | County Special Response Team Tactical | 11204 | 2bc4 | D Encrypted |
| Jackson County Law Enforcement | Countywide Secure Tactical | 11205 | 2bc5 | D Encrypted |
| Jackson County Law Enforcement | Chanter Road Jail Operations | 11168 | 2ba0 | D Encrypted |
| Jackson County Law Enforcement | Wesley St Jail Operations | 11206 | 2bc6 | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Grass Lake charter.
Jackson County Simulcast · Michigan's Public Safety Communications System (MPSCS)
RFSS 1 · Site 24 (hex 18) · NAC 791 · about 11 mi away
Control 851.775, 852.1875, 853.175, 853.55
Voice 769.55625, 769.93125, 770.33125, 771.03125, 773.48125, 774.23125, 851.3375, 851.5625, 856.7125, 861.2375, 861.2875, 861.6375, 861.9625
U of M · University of Michigan (P25)
Project 25 · RFSS 1 · Site 1 (hex 1) · NAC A90 · about 18 mi away
Control 854.0375, 854.2125, 854.2625, 855.5375
Voice 854.7625, 855.0375, 855.6125, 855.7125, 855.9375, 860.8375
Washtenaw County Simulcast · Michigan's Public Safety Communications System (MPSCS)
RFSS 2 · Site 22 (hex 16) · NAC 799 · about 18 mi away
Control 853.25, 855.0875, 855.2875
Voice 851.15, 851.175, 851.45, 851.6625, 851.8625, 851.95, 852.225, 852.45, 852.6125, 852.6875, 852.8625, 854.1875, 854.8375, 855.1875, 855.8125, 856.1875, 861.2625, 861.9125
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.