Monroe City also extends into Marion County, Monroe County.
About Monroe City 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.
- 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): 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 Monroe City, start with the Hannibal area site of Missouri Statewide Wireless Interoperable Network (MOSWIN), about 3 miles away. Its control channels: 773.03125 MHz.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Ralls County channels that also cover Monroe City
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Ralls County Sheriff | Ralls County Sheriff – Dispatch | 159.0900 In 155.4300 | NAC 200 | P25 Encrypted | WQBU609 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Ralls County Sheriff | Car-to-Car | 156.1500 | CSQ | FMN | — |
| Ralls County Sheriff | Ralls County Sheriff – Tactical Channel | 158.1300 | 77.0 PL | FMN | — |
Missouri Statewide Wireless Interoperable Network (MOSWIN)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Ralls County Sheriff | Ralls County Sheriff – Dispatch | 30103 | 7597 | D |
Nearest trunked radio sites
Distances are measured from the center of Monroe City.
Hannibal area · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 3 · Site 53 (hex 35) · about 3 mi away
Control 773.03125
Stoutsville 700 · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 1 · Site 42 (hex 2A) · NAC 1C2 · about 9 mi away
Control 769.18125, 769.43125, 770.93125, 774.05625
Voice 769.93125, 770.18125, 773.55625
Palmyra 700 · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 1 · Site 43 (hex 2B) · NAC 1C7 · about 16 mi away
Control 773.06875
Voice 769.44375, 769.68125, 770.20625, 770.65625, 770.90625, 773.30625
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 Monroe City?
We do not have a dispatch channel listed specifically for Monroe City. County-level dispatch channels in the same county: Ralls County Sheriff 159.0900 MHz (NAC 200).