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Vienna Police Frequencies

We do not have frequencies listed specifically for Vienna in Montmorency County, Michigan yet. Countywide channels for Montmorency County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Atlanta (Michigan's Public Safety Communications System (MPSCS)), about 10 miles away.

About Vienna Police Frequencies

  • 3 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: Michigan's Public Safety Communications System (MPSCS): 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 Vienna, start with the Atlanta site of Michigan's Public Safety Communications System (MPSCS), about 10 miles away. Its control channels: 852.375, 852.875 MHz.

Montmorency County channels that also cover Vienna

Talk-around & Car-to-Car

AgencyDescriptionFrequency (MHz)ToneModeFCC
Michigan StateDNR State Parks151.2200FMNKGP750
Michigan StateDNR State Parks151.3400FMNKGP750
Michigan StateDNR State Parks151.4450FMNKGP750

Michigan's Public Safety Communications System (MPSCS)

AgencyDescriptionTalkgroupHexMode
Montmorency County SheriffMontmorency County Sheriff – Dispatch4054fd6D
Montmorency County SheriffSheriff Administration4056fd8D

Nearest trunked radio sites

Distances are measured from the center of Vienna.

Atlanta · Michigan's Public Safety Communications System (MPSCS)
RFSS 4 · Site 10 (hex A) · NAC 792 · about 10 mi away
Control 852.375, 852.875
Voice 851.375, 851.875, 853.875, 855.0875
Clear Lake · Michigan's Public Safety Communications System (MPSCS)
RFSS 4 · Site 8 (hex 8) · NAC 795 · about 11 mi away
Control 852.9, 853.875
Voice 851.95, 852.425, 855.9625
Treetops · Michigan's Public Safety Communications System (MPSCS)
RFSS 4 · Site 33 (hex 21) · NAC 794 · about 12 mi away
Control 853.275, 853.8875
Voice 851.3875, 851.8875, 852.3875, 854.2875, 854.9875, 855.2125
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.