About St. Clair County 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 (P25), which needs a scanner that decodes that mode.
- Trunked radio systems that carry law-enforcement traffic here: Missouri Statewide Wireless Interoperable Network (MOSWIN): 6 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 St. Clair County, start with the Osceola 700 site of Missouri Statewide Wireless Interoperable Network (MOSWIN). Its control channels: 773.06875, 773.31875 MHz.
St. Clair County conventional frequencies
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| St. Clair County Sheriff | Operations | 155.7600 In 153.8075 | 127.3 PL | FMN | WSBS639 |
| St. Clair County Sheriff | St. Clair County Sheriff – Dispatch | 159.1950 In 155.6775 | NAC 200 | P25 | WSBS639 |
St. Clair County trunked talkgroups
Missouri Statewide Wireless Interoperable Network (MOSWIN)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| St. Clair County Sheriff | All (limited use by Sheriff) | 30801 | 7851 | D |
| St. Clair County Sheriff | Main | 30803 | 7853 | D |
| St. Clair County Sheriff | Operations | 30805 | 7855 | D |
| St. Clair County Sheriff | St. Clair County Sheriff – Dispatch (Appleton City*, Lowry, Osceola) | 30808 | 7858 | D |
| St. Clair County Sheriff | Car-to-Car | 30804 | 7854 | D |
| St. Clair County Sheriff | Travel (Prisoner Transport Vans) | 30802 | 7852 | D |
Radio system sites in St. Clair County
Program the control channel first; your scanner finds the voice channels from it.
Osceola 700 · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 1 · Site 57 (hex 39) · NAC 1C6
Control 773.06875, 773.31875
Voice 773.56875, 773.81875, 774.06875, 774.31875
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.
Cities & communities in St. Clair County
Common questions
What frequency do the police use in St. Clair County?
Dispatch channels listed for St. Clair County: St. Clair County Sheriff 155.7600 MHz (127.3 PL); St. Clair County Sheriff 159.1950 MHz (NAC 200).
Are St. Clair County police talkgroups encrypted?
None of the 6 talkgroups listed for St. Clair County are marked encrypted.