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Alma Police Frequencies

We do not have frequencies listed specifically for Alma in Marshall County, Minnesota yet. Countywide channels for Marshall County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Warren (Allied Radio Matrix for Emergency Response (ARMER)), about 7 miles away.

About Alma Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: Allied Radio Matrix for Emergency Response (ARMER): 1 talkgroup. A trunking scanner is required, and it must support the system type shown.
  • To follow a trunked system, program a control channel first. For Alma, start with the Warren site of Allied Radio Matrix for Emergency Response (ARMER), about 7 miles away. Its control channels: 852.0375, 852.45 MHz.

Marshall County channels that also cover Alma

Allied Radio Matrix for Emergency Response (ARMER)

AgencyDescriptionTalkgroupHexMode
Marshall County SheriffMarshall Law Dispatch51300c864D

Nearest trunked radio sites

Distances are measured from the center of Alma.

Warren · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 6 · Site 30 (hex 1E) · NAC 40a · about 7 mi away
Control 852.0375, 852.45
Voice 853.9125, 854.3125, 854.7375
Strandquist · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 6 · Site 87 (hex 57) · about 11 mi away
Control 853.875, 854.2625
Voice 851.7875, 852.0875, 853.4875
Donaldson · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 6 · Site 4 (hex 4) · about 16 mi away
Control 851.1125, 851.8625
Voice 853.3875, 854.4125, 854.6875
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.