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Jefferson County Police Frequencies

Jefferson County in Montana has 2 countywide conventional frequencies and 2 countywide talkgroups in our database. Use the list of 10 cities and communities below for local police departments.

About Jefferson 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.
  • Trunked radio systems that carry law-enforcement traffic here: Montana Public Safety Communications System: 2 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 Jefferson County, start with the Whitehall site of Montana Public Safety Communications System. Its control channels: 153.845, 154.905 MHz.

Jefferson County conventional frequencies

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Jefferson County SheriffCenteral / South155.1450
In 154.1150
FMNWZN261
Jefferson County SheriffNorth Zone155.4900
In 155.9100
151.4 PLFMNKOE890

Jefferson County trunked talkgroups

Montana Public Safety Communications System

AgencyDescriptionTalkgroupHexMode
Jefferson County SheriffJefferson County Sheriff – Dispatch28311bD
Jefferson County SheriffSheriff Operations28411cD

Radio system sites in Jefferson County

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

Whitehall · Montana Public Safety Communications System
RFSS 1 · Site 34 (hex 22) · NAC 160
Control 153.845, 154.905
Voice 154.725, 154.8, 161.9375
Boulder Hill · Montana Public Safety Communications System
RFSS 1 · Site 35 (hex 23) · NAC 160
Control 151.34, 154.37
Voice 154.25, 154.89, 155.58
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 Jefferson County

Common questions

What frequency do the police use in Jefferson County?

Dispatch channels listed for Jefferson County: Jefferson County Sheriff 155.1450 MHz; Jefferson County Sheriff 155.4900 MHz (151.4 PL).

Are Jefferson County police talkgroups encrypted?

None of the 2 talkgroups listed for Jefferson County are marked encrypted.