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Otrey Police Frequencies

We do not have frequencies listed specifically for Otrey in Big Stone County, Minnesota yet. Countywide channels for Big Stone County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Ortonville (Allied Radio Matrix for Emergency Response (ARMER)), about 6 miles away.

About Otrey Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: Allied Radio Matrix for Emergency Response (ARMER): 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 Otrey, start with the Ortonville site of Allied Radio Matrix for Emergency Response (ARMER), about 6 miles away. Its control channels: 858.4875, 859.4875 MHz.
  • 1 listed entry is marked encrypted. No scanner can decode encrypted audio.

Big Stone County channels that also cover Otrey

Allied Radio Matrix for Emergency Response (ARMER)

AgencyDescriptionTalkgroupHexMode
Big Stone County SheriffLaw Dispatch265006784D
1 encrypted talkgroup (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Big Stone County SheriffBig Stone County Sheriff – Tactical Channel26511678fD

Nearest trunked radio sites

Distances are measured from the center of Otrey.

Ortonville · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 4 · Site 86 (hex 56) · NAC 405 · about 6 mi away
Control 858.4875, 859.4875
Voice 856.4875, 857.4875, 860.4875
Correll · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 4 · Site 28 (hex 1C) · NAC 40F · about 7 mi away
Control 852.9875, 853.4
Voice 851.475, 851.75, 851.9
Johnson · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 4 · Site 26 (hex 1A) · NAC 406 · about 13 mi away
Control 854.9625, 856.7375
Voice 857.7375, 858.7375, 859.7375, 860.7375
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.