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Farmington Police Frequencies

We do not have frequencies listed specifically for Farmington in Lake County, South Dakota yet. Countywide channels for Lake County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Madison (South Dakota State Radio System), about 9 miles away.

About Farmington Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: South Dakota State Radio System: 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 Farmington, start with the Madison site of South Dakota State Radio System, about 9 miles away. Its control channels: 159.78, 160.065 MHz.

Lake County channels that also cover Farmington

South Dakota State Radio System

AgencyDescriptionTalkgroupHexMode
Lake County SheriffSheriff 11832728D
Lake County SheriffSheriff 2134253eD

Nearest trunked radio sites

Distances are measured from the center of Farmington.

Madison · South Dakota State Radio System
RFSS 1 · Site 28 (hex 1C) · NAC 47C · about 9 mi away
Control 159.78, 160.065
Voice 159.54, 159.915
Brookings · South Dakota State Radio System
RFSS 1 · Site 39 (hex 27) · NAC 475 · about 28 mi away
Control 157.92, 158.04
Voice 157.8, 158.61
Minnehaha Simulcast · South Dakota State Radio System
RFSS 1 · Site 61 (hex 3D) · NAC 479 · about 29 mi away
Control 157.2625, 157.755
Voice 157.95, 158.49, 158.64
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.