Skip to content

Thomson Police Frequencies

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

About Thomson Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: Allied Radio Matrix for Emergency Response (ARMER): 4 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 Thomson, start with the Wrenshall site of Allied Radio Matrix for Emergency Response (ARMER), about 7 miles away. Its control channels: 851.75, 852.775 MHz.

Carlton County channels that also cover Thomson

Allied Radio Matrix for Emergency Response (ARMER)

AgencyDescriptionTalkgroupHexMode
Carlton County SheriffLaw Dispatch3710190edD
Carlton County SheriffLaw 23710290eeD
Carlton County SheriffLaw 33710490f0D
Carlton County SheriffJail Operations3711290f8D

Nearest trunked radio sites

Distances are measured from the center of Thomson.

Wrenshall · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 5 · Site 66 (hex 42) · NAC 40A · about 7 mi away
Control 851.75, 852.775
Voice 851.375, 852.1, 852.225, 852.725, 853.05, 853.125
Duluth Simulcast · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 5 · Site 43 (hex 2B) · about 8 mi away
Control 851.9875, 852.4875, 856.4625
Voice 851.2875, 851.775, 852.175, 852.625, 853.0875, 853.5875, 853.8375, 853.8625, 857.4875
Duluth - UMD · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 5 · Site 70 (hex 46) · NAC 400 · about 15 mi away
Control 857.0875, 859.9625
Voice 855.9875, 856.2125, 856.7375
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.