Janesville also extends into Coles County.
About Janesville 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.
- 1 conventional channel uses a digital mode (DMR), which needs a scanner that decodes that mode.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Cumberland County channels that also cover Janesville
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Cumberland County Sheriff | Cumberland County Sheriff – Dispatch / Neoga, Greenup Police | 151.3100 In 158.7825 | CC 10 · TG 100 · SL 1 | DMR Encrypted | WROM272 |
| Cumberland County Sheriff | Cumberland County Sheriff – Dispatch / Rural Police | 155.0700 In 158.8650 | 186.2 PL | FMN | KSC770 |
| Cumberland County Sheriff | Simulcasting of 155.07R | 155.3100 In 155.0700 | 186.2 PL | FMN | — |
| Cumberland County Sheriff | Remote Link to 155.07 | 453.2625 | 503 DPL | FMN | WQEJ223 |
| Cumberland County Sheriff | Remote Link to 155.07 | 458.2625 | 624 DPL | FMN | — |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Cumberland County Sheriff | Jail Operations | 156.0900 | FMN | KSC770 |
Nearest trunked radio sites
Distances are measured from the center of Janesville.
Greenup · STARCOM21 Statewide Illinois
RFSS 3 · Site 50 (hex 32) · NAC 141 · about 9 mi away
Control 852.3125, 852.8375, 856.2125
Voice 851.475
Mattoon · STARCOM21 Statewide Illinois
RFSS 2 · Site 34 (hex 22) · NAC 149 · about 10 mi away
Control 851.9125, 852.4375, 852.9625
Voice 851.3875, 853.4875, 855.1875, 858.7375, 858.8625, 859.7375, 860.7375
Martinsville · STARCOM21 Statewide Illinois
RFSS 3 · Site 54 (hex 36) · NAC 14F · about 17 mi away
Control 851.875, 852.4, 853.45
Voice 851.35, 852.925
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.
Common questions
What frequency do the police use in Janesville?
We do not have a dispatch channel listed specifically for Janesville. County-level dispatch channels in the same county: Cumberland County Sheriff 151.3100 MHz (CC 10 · TG 100 · SL 1); Cumberland County Sheriff 155.0700 MHz (186.2 PL); Cumberland County Sheriff 155.3100 MHz (186.2 PL); Cumberland County Sheriff 453.2625 MHz (503 DPL).