About Chinook Police Frequencies
- 3 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
- Trunked radio systems that carry law-enforcement traffic here: Montana Public Safety Communications System: 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 Chinook, start with the Chinook site of Montana Public Safety Communications System, about 0 miles away. Its control channels: 149.225, 154.025 MHz.
Chinook conventional frequencies
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Chinook Police | Chinook Police – Dispatch | 453.9875 | FMN | WPGS298 |
Blaine County channels that also cover Chinook
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Blaine County Sheriff | Blaine County Sheriff – Dispatch | 154.7550 In 155.7150 | FMN | WNJC268 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Blaine County Sheriff | Sheriff Car/Car | 155.4150 | FMN | WNJC268 |
Montana Public Safety Communications System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Blaine County Sheriff | Blaine County Sheriff – Dispatch | 2321 | 911 | D |
Nearest trunked radio sites
Distances are measured from the center of Chinook.
Chinook · Montana Public Safety Communications System
RFSS 1 · Site 49 (hex 31) · about 0 mi away
Control 149.225, 154.025
Voice 151.085
Hill County Sheriff Office · Montana Public Safety Communications System
RFSS 1 · Site 19 (hex 13) · about 21 mi away
Control 151.295, 154.235
Voice 153.995
Boyce Ranch · Montana Public Safety Communications System
RFSS 1 · Site 47 (hex 2F) · about 29 mi away
Control 151.34, 153.92
Voice 154.415
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 Chinook?
Dispatch channels listed for Chinook: Chinook Police 453.9875 MHz.