About Missouri 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.
Brown County channels that also cover Missouri
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Western Illinois Correctional Center (Mt. Sterling) [K-25] | Operations / Inmate Movement | 453.2750 In 458.2750 | 127.3 PL | FMN | WNPF573 |
| Western Illinois Correctional Center (Mt. Sterling) [K-25] | Operations | 453.8750 In 458.8750 | 127.3 PL | FMN | WNPF573 |
Nearest trunked radio sites
Distances are measured from the center of Missouri.
Mt. Sterling · STARCOM21 Statewide Illinois
RFSS 2 · Site 15 (hex F) · NAC 145 · about 7 mi away
Control 851.9125, 852.4375, 852.9625
Voice 851.3875, 853.4875, 854.8625
Augusta · STARCOM21 Statewide Illinois
RFSS 2 · Site 11 (hex B) · NAC 141 · about 14 mi away
Control 851.9375, 852.4625, 852.9875
Voice 851.4125, 853.875, 857.3125
Kingston · STARCOM21 Statewide Illinois
RFSS 2 · Site 18 (hex 12) · NAC 148 · about 23 mi away
Control 851.9875, 852.8125
Voice 851.4625, 853.45, 858.3625
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.