About Auburn 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.
- 2 conventional channels use a digital mode (NXDN48, P25), which needs a scanner that decodes those modes.
- Trunked radio systems that carry law-enforcement traffic here: STARCOM21 Statewide Illinois: 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 Auburn, start with the Martinsville site of STARCOM21 Statewide Illinois, about 7 miles away. Its control channels: 851.875, 852.4, 853.45 MHz.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Clark County channels that also cover Auburn
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Clark County Sheriff | Clark County Sheriff – Dispatch (Sheriff, Marshall, Martinsville, Casey) | 154.3625 In 159.0675 | RAN 05 | NXDN48 | WPKU884 |
| Clark County Sheriff Backup | Primary/Rural Dispatch | 155.5350 In 154.6500 | 162.2 PL | FMN | KSC766 |
| Clark County Sheriff Backup | Clark County Sheriff – Tactical Channel (or input 155.13 or 155.19) | 159.2100 In 156.0900 | FMN | KSC766 | |
| Clark County Sheriff Backup | Remote Link | 453.2375 | NAC 196 | P25 | WPKU884 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Clark County Sheriff Backup | Portables | 153.9050 | FMN | — | |
| Clark County Sheriff Backup | Car-to-Car | 155.1900 | 162.2 PL | FMN | KSC766 |
| Clark County Sheriff Backup | Portables | 158.9700 | FMN | — | |
| Clark County Sheriff Backup | Mobile Extenders | 173.2375 | FMN | KSC766 |
STARCOM21 Statewide Illinois
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Clark County Sheriff | Clark County Sheriff – Dispatch | 8301 | 206d | D |
1 encrypted talkgroup (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Clark County Sheriff | Clark County Sheriff – Tactical Channel | 8304 | 2070 | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Auburn.
Martinsville · STARCOM21 Statewide Illinois
RFSS 3 · Site 54 (hex 36) · NAC 14F · about 7 mi away
Control 851.875, 852.4, 853.45
Voice 851.35, 852.925
Marshall · STARCOM21 Statewide Illinois
RFSS 3 · Site 36 (hex 24) · NAC 145 · about 10 mi away
Control 853.3375, 853.9125, 854.7125
Voice 851.45
Paris · STARCOM21 Statewide Illinois
RFSS 2 · Site 8 (hex 8) · NAC 144 · about 13 mi away
Control 852.325, 853.375, 853.95
Voice 856.9875, 857.2625, 857.9875, 858.9875, 859.9875, 860.9875
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 Auburn?
We do not have a dispatch channel listed specifically for Auburn. County-level dispatch channels in the same county: Clark County Sheriff 154.3625 MHz (RAN 05).