About Big Grove Police Frequencies
- 2 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
- 4 conventional channels use a digital mode (P25), which needs a scanner that decodes that mode.
- 4 listed entries are marked encrypted. No scanner can decode encrypted audio.
Kendall County channels that also cover Big Grove
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| KenCom Sheriff / Police | Sheriff/Oswego Police – Dispatch (was 156.7 PL) | 453.4750 In 458.4750 | NAC 721 | P25 Encrypted | WQNC297 |
| KenCom Sheriff / Police | KenCom Sheriff / Police – Dispatch – Plano, Montgomery, Yorkville | 453.5750 In 458.5750 | NAC 724 | P25 Encrypted | WQNC297 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| KenCom Sheriff / Police | KenCom Sheriff / Police – Tactical Channel (Channel 5) | 453.2250 In 458.2250 | NAC 731 | P25 Encrypted | WQNC297 |
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| KenCom Sheriff / Police | Special Events/Backup Dispatch for P1-3 (Channel 7) | 453.3250 In 458.3250 | NAC 734 | P25 Encrypted | WQNC297 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| KenCom Sheriff / Police | Jail Operations | 453.1500 In 458.1500 | 127.3 PL | FMN | WPBI878 |
| KenCom Sheriff / Police | Court/Jail Operations | 453.3625 In 458.3625 | 127.3 PL | FMN | WQLD369 |
Nearest trunked radio sites
Distances are measured from the center of Big Grove.
Aurora - Barnes Rd · Aurora / Naperville Public Safety (OpenSky)
Site 4 (hex 4) · about 19 mi away
Voice 852.75, 853.1125
Ottawa · STARCOM21 Statewide Illinois
RFSS 1 · Site 34 (hex 22) · NAC 14B · about 19 mi away
Control 851.8375, 852.3625
Voice 851.3125, 853.9875, 858.3375, 860.8625
Aurora - S Loucks · Aurora / Naperville Public Safety (OpenSky)
Site 3 (hex 3) · about 20 mi away
Control 851.0625
Voice 853.7375
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 Big Grove?
We do not have a dispatch channel listed specifically for Big Grove. County-level dispatch channels in the same county: KenCom Sheriff / Police 453.4750 MHz (NAC 721); KenCom Sheriff / Police 453.5750 MHz (NAC 724).