About Union Police Frequencies
- 4 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: 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 Union, start with the Saunemin site of STARCOM21 Statewide Illinois, about 6 miles away. Its control channels: 859.7125 MHz.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Livingston County channels that also cover Union
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Livingston County Sheriff | Mobile Extenders | 770.3313 In 800.3325 | DMR | WQWA675 |
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| VCom - Fire/EMS | All Talk – Police/Fire – Common | 458.7750 | 173.8 PL | FMN | WPHX984 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Pontiac Correctional Center [K-5] | Operations | 453.3500 In 458.3500 | 127.3 PL | FMN | KNFP372 |
| Pontiac Correctional Center [K-5] | Tone/Voice Paging | 453.8750 In 458.8750 | 186.2 PL | FMN | KVT268 |
| Pontiac Correctional Center [K-5] | Operations | 453.8750 In 458.8750 | 127.3 PL | FMN | KRB389 |
STARCOM21 Statewide Illinois
1 encrypted talkgroup (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Livingston County Sheriff | Livingston County Sheriff – Tactical Channel | 5779 | 1693 | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Union.
Saunemin · STARCOM21 Statewide Illinois
RFSS 2 · Site 67 (hex 43) · NAC 142 · about 6 mi away
Control 859.7125
Voice 854.1375, 855.2375, 856.2375, 856.9375, 857.9375
Dwight · STARCOM21 Statewide Illinois
RFSS 1 · Site 54 (hex 36) · NAC 142 · about 9 mi away
Control 852.05
Voice 851.15, 851.6125, 853.6125
Pontiac · STARCOM21 Statewide Illinois
RFSS 2 · Site 7 (hex 7) · NAC 142 · about 14 mi away
Control 851.9625, 852.325, 852.85
Voice 851.4875, 855.7125, 856.7125, 857.3125, 857.7125, 858.7125
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 Union?
We do not have a dispatch channel listed specifically for Union. County-level dispatch channels in the same county: Livingston County Sheriff 770.3313 MHz.