About Monroe 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.
- Trunked radio systems that carry law-enforcement traffic here: Missouri Statewide Wireless Interoperable Network (MOSWIN): 1 talkgroup; STARCOM21 Statewide Illinois: 12 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 Monroe County, start with the Stoutsville 700 site of Missouri Statewide Wireless Interoperable Network (MOSWIN). Its control channels: 769.18125, 769.43125, 770.93125 MHz.
- 4 listed entries are marked encrypted. No scanner can decode encrypted audio.
Monroe County conventional frequencies
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Monroe County Sheriff Backup | Monroe County Sheriff – Dispatch (DB – 911) | 154.4000 In 150.8050 | 162.2 PL | FMN | WPPA507 |
Monroe County trunked talkgroups
Missouri Statewide Wireless Interoperable Network (MOSWIN)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Monroe County Sheriff | Monroe County Sheriff – Dispatch | 29105 | 71b1 | D |
STARCOM21 Statewide Illinois
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Monroe County Sheriff | Monroe County Sheriff – Dispatch | 7994 | 1f3a | D |
| Monroe County Sheriff | Columbia Police – Dispatch / EMS – Dispatch | 7995 | 1f3b | D |
| Monroe County Sheriff Old | Waterloo Police – Dispatch | 7997 | 1f3d | D |
| Monroe County Sheriff | Columbia Police – Emergency Button Trigger | 8413 | 20dd | D |
| Monroe County Sheriff | Operations 7996 | 7996 | 1f3c | D |
| Monroe County Sheriff | Operations 7998 | 7998 | 1f3e | D |
| Monroe County Sheriff | Emergency Button Trigger (EBT) | 8004 | 1f44 | D |
| Monroe County Sheriff | Operations 8411 | 8411 | 20db | D |
4 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Monroe County Sheriff | Sheriff / Valmyer Police – Dispatch | 7993 | 1f39 | D Encrypted |
| Monroe County Sheriff | Waterloo Police – Dispatch (New) | 29008 | 7150 | D Encrypted |
| Monroe County Sheriff | Columbia Police – Operations | 8412 | 20dc | D Encrypted |
| Monroe County Sheriff | Secure | 8418 | 20e2 | D Encrypted |
Radio system sites in Monroe County
Program the control channel first; your scanner finds the voice channels from it.
Stoutsville 700 · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 1 · Site 42 (hex 2A) · NAC 1C2
Control 769.18125, 769.43125, 770.93125, 774.05625
Voice 769.93125, 770.18125, 773.55625
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 Monroe County
Common questions
Are Monroe County police talkgroups encrypted?
4 of the 13 talkgroups listed for Monroe County are marked fully or partly encrypted; a scanner cannot decode encrypted audio.