About Butte Police Frequencies
- 4 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 Butte, start with the Butte EOC site of Montana Public Safety Communications System, about 1 miles away. Its control channels: 851.1, 851.275 MHz.
Butte trunked talkgroups
Montana Public Safety Communications System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Silver Bow County/Butte City | Butte/Silver Bow Law | 10397 | 289d | D |
Silver Bow County channels that also cover Butte
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Silver Bow County Sheriff | Law Enforcement | 155.6850 In 155.0100 | 100.0 PL | FMN | KNHC284 |
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Silver Bow County Sheriff | Law Enforcement | 155.0100 | FMN | KNHC284 | |
| Silver Bow County Sheriff | Law Enforcement | 155.9100 | FMN | KNHC284 | |
| Silver Bow County Sheriff | Dispatch Future Use | 161.9500 In 159.0150 | FMN | — |
Nearest trunked radio sites
Distances are measured from the center of Butte.
Butte EOC · Montana Public Safety Communications System
RFSS 1 · Site 52 (hex 34) · NAC 162 · about 1 mi away
Control 851.1, 851.275
Voice 851.5375, 853.8875
Butte Uptown · Montana Public Safety Communications System
RFSS 1 · Site 51 (hex 33) · NAC 160 · about 4 mi away
Control 851.35, 851.625
Voice 853.6375, 853.8125
Red Mountain · Montana Public Safety Communications System
RFSS 1 · Site 11 (hex B) · NAC 160 · about 13 mi away
Control 161.6, 161.825
Voice 161.79, 170.85
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 Butte?
We do not have a dispatch channel listed specifically for Butte. County-level dispatch channels in the same county: Silver Bow County Sheriff 155.6850 MHz (100.0 PL).
Are Butte police talkgroups encrypted?
None of the 1 talkgroups listed for Butte are marked encrypted.