About Great Falls Police Frequencies
- 7 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
- 7 conventional channels use a digital mode (P25), which needs a scanner that decodes that mode.
- Trunked radio systems that carry law-enforcement traffic here: Montana Public Safety Communications System: 4 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 Great Falls, start with the Smelter Hill site of Montana Public Safety Communications System, about 3 miles away. Its control channels: 154.89, 164.725 MHz.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Great Falls conventional frequencies
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Great Falls Police | Police 1 Dispatch | 155.0100 | P25 | WQIL681 | |
| Great Falls Police | Police 2 Dispatch | 159.1650 | P25 | WQEQ897 |
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Great Falls Police | Great Falls Police – Alternate (340) | 154.3400 | NAC 160 | P25 | — |
| Great Falls Police | Great Falls Police – Alternate (890) | 154.8900 | NAC 160 | P25 | — |
| Great Falls Police | Great Falls Police – Alternate (430) | 155.4300 | NAC 160 | P25 | — |
| Great Falls Police | Great Falls Police – Alternate (000) | 156.0000 | NAC 160 | P25 | — |
| Great Falls Police | Police Car/Car | 159.0600 | P25 | WQEQ897 |
Great Falls trunked talkgroups
Montana Public Safety Communications System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Great Falls Police | Police 2 | 2928 | b70 | D |
| Great Falls Police | Police 3 Car/Car | 2929 | b71 | D |
| Great Falls Police | Police Training | 2933 | b75 | D |
1 encrypted talkgroup (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Great Falls Police | Police 1 | 2927 | b6f | D Encrypted |
Cascade County channels that also cover Great Falls
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Cascade County Sheriff | Central Dispatch | 154.7100 In 155.6400 | 67.0 PL | FMN | KNGK744 |
| Cascade County Sheriff | North Dispatch | 154.7700 In 155.5800 | 141.3 PL | FMN | WNPQ744 |
| Cascade County Sheriff | Sheriff 5 | 154.8000 In 155.6700 | 151.4 PL | FMN | KNFW803 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Cascade County Sheriff | Cascade County Sheriff – Tactical Channel (040) | 154.0400 In 156.0150 | 67.0 PL | FMN | KNGK744 |
| Cascade County Sheriff | Cascade County Sheriff – Tactical Channel | 155.3700 | FMN | KNGK744 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Cascade County Sheriff | Sheriff Jail Security | 155.8800 | 107.2 PL | FMN | KLI972 |
| Cascade County Sheriff | Sheriff Jail Security | 453.5250 In 458.5250 | 141.3 PL | FMN | KDJ995 |
Nearest trunked radio sites
Distances are measured from the center of Great Falls.
Smelter Hill · Montana Public Safety Communications System
RFSS 1 · Site 36 (hex 24) · NAC 163 · about 3 mi away
Control 154.89, 164.725
Voice 151.16, 151.355, 153.845
Smelter Hill 800 · Montana Public Safety Communications System
RFSS 1 · Site 38 (hex 26) · NAC 167 · about 3 mi away
Control 851.15, 851.4, 853.0625
Voice 853.5875
Great Falls · Montana Public Safety Communications System
RFSS 1 · Site 37 (hex 25) · NAC 161 · about 3 mi away
Control 153.86, 154.205
Voice 154.34, 155.01, 161.9625
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 Great Falls?
Dispatch channels listed for Great Falls: Great Falls Police 155.0100 MHz; Great Falls Police 159.1650 MHz.
Are Great Falls police talkgroups encrypted?
1 of the 4 talkgroups listed for Great Falls are marked fully or partly encrypted; a scanner cannot decode encrypted audio.