About Isabel Police Frequencies
- 1 conventional channel is analog FM, so any scanner can receive it. Enter the frequency and set the tone shown in the table.
- 1 conventional channel uses a digital mode (NXDN48), which needs a scanner that decodes that mode.
- 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 Isabel, start with the Astoria site of STARCOM21 Statewide Illinois, about 12 miles away. Its control channels: 851.775 MHz.
- 2 listed entries are marked encrypted. No scanner can decode encrypted audio.
Fulton County channels that also cover Isabel
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Fulton County Sheriff | Remote Link to 453.95 (Canton) | 154.8300 | 203.5 PL | FMN | KSA925 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Illinois River Correctional Center (Canton) | Operations (was 127.3) | 453.7250 In 458.7250 | RAN 34 | NXDN48 Encrypted | WNPZ707 |
STARCOM21 Statewide Illinois
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Fulton County Sheriff | Fulton County Sheriff – Dispatch | 6166 | 1816 | T |
1 encrypted talkgroup (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Fulton County Sheriff | Fulton County Sheriff – Tactical Channel | 6167 | 1817 | T Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Isabel.
Astoria · STARCOM21 Statewide Illinois
RFSS 2 · Site 55 (hex 37) · NAC 14A · about 12 mi away
Control 851.775
Voice 851.3, 852.0625, 853.2
Cuba · STARCOM21 Statewide Illinois
RFSS 2 · Site 57 (hex 39) · NAC 141 · about 13 mi away
Control 769.43125, 769.68125, 770.43125
Voice 773.81875
Sand Ridge/Manito · STARCOM21 Statewide Illinois
RFSS 2 · Site 23 (hex 17) · NAC 14A · about 16 mi away
Control 852.3125, 852.8375, 856.2125
Voice 851.475, 860.2125, 860.3625
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 Isabel?
We do not have a dispatch channel listed specifically for Isabel. County-level dispatch channels in the same county: Fulton County Sheriff 154.8300 MHz (203.5 PL).