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Backus Police Frequencies

We do not have frequencies listed specifically for Backus in Roscommon County, Michigan yet. Countywide channels for Roscommon County that may also cover this area are shown below when we have them. The closest trunked radio site we have is St. Helen (Michigan's Public Safety Communications System (MPSCS)), about 7 miles away.

About Backus 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.
  • 1 conventional channel uses a digital mode (DMR), which needs a scanner that decodes that mode.
  • Trunked radio systems that carry law-enforcement traffic here: Michigan's Public Safety Communications System (MPSCS): 8 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 Backus, start with the St. Helen site of Michigan's Public Safety Communications System (MPSCS), about 7 miles away. Its control channels: 853.2125, 853.6375 MHz.

Roscommon County channels that also cover Backus

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Kirtland Community CollegePublic Safety – Dispatch154.8750
In 158.9100
103.5 PLFMNWPDC665

Talk-around & Car-to-Car

AgencyDescriptionFrequency (MHz)ToneModeFCC
Gerrish TownshipGerrish Coordination of Public Safety Operations155.8800
In 158.9550
71.9 PLFMNWPPX291
Kirtland Community CollegeDepartment of Public Safety154.0250FMNWPDC665
Kirtland Community CollegeDepartment of Public Safety155.7900FMNWPDC665
Kirtland Community CollegeDepartment of Public Safety159.1500FMNWPDC665
Kirtland Community CollegeDepartment of Public Safety159.2250FMNWPDC665

Jails & Corrections

AgencyDescriptionFrequency (MHz)ToneModeFCC
Roscommon County JailCounty Jail Operations458.7000DMRWQKM358

Michigan's Public Safety Communications System (MPSCS)

AgencyDescriptionTalkgroupHexMode
Roscommon County Law EnforcementRoscommon County Law Enforcement – Dispatch4069fe5D
Roscommon County Law EnforcementCountywide Narcotics Enforcement Common4027fbbD
Roscommon County Law EnforcementCounty Jail4140102cD
Roscommon County Law EnforcementRoscommon County Law Enforcement – Tactical Channel41471033D
Roscommon County Law EnforcementSheriff Corrections Division 253821506D
Roscommon County Law EnforcementLEIN / Police Alerts41341026D
Roscommon County Law EnforcementGerrish Twp. Police Proprietary4143102fD
Roscommon County Law EnforcementRichfield Twp. Police Proprietary41451031D

Nearest trunked radio sites

Distances are measured from the center of Backus.

St. Helen · Michigan's Public Safety Communications System (MPSCS)
RFSS 4 · Site 18 (hex 12) · NAC 790 · about 7 mi away
Control 853.2125, 853.6375
Voice 851.275, 851.6625, 852.3125, 852.6875, 859.8125
Harrison · Michigan's Public Safety Communications System (MPSCS)
RFSS 3 · Site 21 (hex 15) · NAC 793 · about 19 mi away
Control 853.4375, 853.9375
Voice 851.4375, 851.9375, 852.2125, 852.9375, 853.2375, 856.8375
Damon · Michigan's Public Safety Communications System (MPSCS)
RFSS 1 · Site 17 (hex 11) · NAC 796 · about 20 mi away
Control 853.4125, 853.9125
Voice 851.175, 851.9125, 852.9125, 860.9125
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.