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Yellowstone County Police Frequencies

Yellowstone County in Montana has 6 countywide conventional frequencies and 3 countywide talkgroups in our database. Use the list of 13 cities and communities below for local police departments.

About Yellowstone County Police Frequencies

  • 6 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: 3 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 Yellowstone County, start with the Pompey Pillar site of Montana Public Safety Communications System. Its control channels: 151.145, 151.2875 MHz.

Yellowstone County conventional frequencies

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Yellowstone County SheriffEast Dispatch154.7850
In 158.9100
107.2 PLFMNWPZH216
Yellowstone County SheriffLockwood Dispatch155.7600
In 159.0300
107.2 PLFMNWQDT347
Yellowstone County SheriffWest Dispatch156.2100
In 159.2100
107.2 PLFMNWPZH216

Tactical

AgencyDescriptionFrequency (MHz)ToneModeFCC
Yellowstone County SheriffCar/Car159.0900192.8 PLFMNWPZH216

Talk-around & Car-to-Car

AgencyDescriptionFrequency (MHz)ToneModeFCC
Yellowstone County SheriffYellowstone County Sheriff – Alternate (640)155.6400162.2 PLFMNWQCX531
Yellowstone County SheriffYellowstone County Sheriff – Alternate (730)155.7300
In 158.8950
FMNWQGG748

Yellowstone County trunked talkgroups

Montana Public Safety Communications System

AgencyDescriptionTalkgroupHexMode
Yellowstone County SheriffYellowstone County Sheriff – Dispatch12315301bT
Yellowstone County SheriffBillings Animal Control124083078T
Yellowstone County SheriffBillings Airport Police1245030a2T

Radio system sites in Yellowstone County

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

Pompey Pillar · Montana Public Safety Communications System
RFSS 2 · Site 14 (hex E) · NAC 16F
Control 151.145, 151.2875
Voice 151.4375, 154.055
Billings Courthouse 800 · Montana Public Safety Communications System
RFSS 2 · Site 15 (hex F) · NAC 160
Control 851.0375, 851.375
Voice 851.75, 852.7375, 853.1375, 853.4375
Laurel · Montana Public Safety Communications System
RFSS 2 · Site 16 (hex 10) · NAC 16F
Control 155.5575, 161.9
Voice 161.8, 161.8625
Billings South 800 · Montana Public Safety Communications System
RFSS 2 · Site 41 (hex 29) · NAC 161
Control 855.2125, 855.7125, 856.4625
Voice 856.9625, 857.4625, 857.9625
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.

Cities & communities in Yellowstone County

Common questions

What frequency do the police use in Yellowstone County?

Dispatch channels listed for Yellowstone County: Yellowstone County Sheriff 154.7850 MHz (107.2 PL); Yellowstone County Sheriff 155.7600 MHz (107.2 PL); Yellowstone County Sheriff 156.2100 MHz (107.2 PL).

Are Yellowstone County police talkgroups encrypted?

None of the 3 talkgroups listed for Yellowstone County are marked encrypted.