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Sweet Grass County Police Frequencies

Sweet Grass County in Montana has 4 countywide conventional frequencies and 0 countywide talkgroups in our database. Use the list of 2 cities and communities below for local police departments.

About Sweet Grass County 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.
  • 2 conventional channels use a digital mode (P25), which needs a scanner that decodes that mode.

Sweet Grass County conventional frequencies

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Sweet Grass County SheriffLaw East154.1750
In 159.1800
156.7 PLFMNWQJF245
Sweet Grass County SheriffLaw East P25154.1750
In 159.1800
P25WQJF245
Sweet Grass County SheriffLaw West154.8000
In 158.7300
100.0 PLFMNKNIA831
Sweet Grass County SheriffLaw West P25154.8000
In 158.7300
P25KNIA831

Radio system sites in Sweet Grass County

Program the control channel first; your scanner finds the voice channels from it.

Greycliff · Montana Public Safety Communications System
RFSS 1 · Site 39 (hex 27) · NAC 169
Control 151.34, 173.825
Voice 151.205, 161.9375
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 Sweet Grass County

Common questions

What frequency do the police use in Sweet Grass County?

Dispatch channels listed for Sweet Grass County: Sweet Grass County Sheriff 154.1750 MHz (156.7 PL); Sweet Grass County Sheriff 154.1750 MHz; Sweet Grass County Sheriff 154.8000 MHz (100.0 PL); Sweet Grass County Sheriff 154.8000 MHz.