About Mission 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.
- Trunked radio systems that carry law-enforcement traffic here: STARCOM21 Statewide Illinois: 1 talkgroup. A trunking scanner is required, and it must support the system type shown.
- To follow a trunked system, program a control channel first. For Mission, start with the Ottawa site of STARCOM21 Statewide Illinois, about 14 miles away. Its control channels: 851.8375, 852.3625 MHz.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
LaSalle County channels that also cover Mission
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| La Salle County Sheriff | La Salle County Sheriff – Dispatch(BACKUP Sheriff – to Cleartalk DMR | 155.7000 In 159.0300 | 114.8 PL | FMN | KSA521 |
| LaSalle County Sheriff | Countywide Net – Back-Up | 155.6100 | 114.8 PL | FMN | KSA521 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| LaSalle County Sheriff | Car-to-Car | 155.9850 | 114.8 PL | FMN | WRPJ738 |
| LaSalle County Sheriff | Mobile Extenders (to ClearTalk TG 21040) | 851.0750 | 156.7 PL | FMN | WPWC445 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| LaSalle County Sheriff | Jail Operations | 853.5875 | 156.7 PL | FMN | WPWC445 |
| Sheridan Correctional Center (K-8) | Operations (possible tone) | 453.6500 In 458.6500 | 413 DPL | FMN | KLY288 |
STARCOM21 Statewide Illinois
1 encrypted talkgroup (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| LaSalle County Sheriff | LaSalle County Sheriff – Dispatch (mobiles ENC) | 35350 | 8a16 | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Mission.
Ottawa · STARCOM21 Statewide Illinois
RFSS 1 · Site 34 (hex 22) · NAC 14B · about 14 mi away
Control 851.8375, 852.3625
Voice 851.3125, 853.9875, 858.3375, 860.8625
Aurora - Barnes Rd · Aurora / Naperville Public Safety (OpenSky)
Site 4 (hex 4) · about 22 mi away
Voice 852.75, 853.1125
Aurora Simulcast · Aurora Public Safety (P25)
Project 25 · RFSS 53 · Site 1 (hex 1) · NAC 032 · about 25 mi away
Control 770.51875, 771.20625, 771.59375, 772.20625, 772.54375, 773.18125, 774.68125
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 Mission?
We do not have a dispatch channel listed specifically for Mission. County-level dispatch channels in the same county: La Salle County Sheriff 155.7000 MHz (114.8 PL); LaSalle County Sheriff 155.6100 MHz (114.8 PL).