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Iroquois Police Frequencies

We do not have frequencies listed specifically for Iroquois in Kingsbury County, South Dakota yet. Countywide channels for Kingsbury County that may also cover this area are shown below when we have them. The closest trunked radio site we have is De Smet (South Dakota State Radio System), about 13 miles away.

Iroquois also extends into Beadle County.

About Iroquois Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: South Dakota State Radio System: 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 Iroquois, start with the De Smet site of South Dakota State Radio System, about 13 miles away. Its control channels: 159.015, 159.33, 159.885 MHz.

Kingsbury County channels that also cover Iroquois

South Dakota State Radio System

AgencyDescriptionTalkgroupHexMode
Kingsbury County SheriffKingsbury County Sheriff – Dispatch1312520D
Kingsbury County SheriffLaw 11313521D
Kingsbury County SheriffLaw 21314522D
Kingsbury County SheriffLaw 31315523D

Nearest trunked radio sites

Distances are measured from the center of Iroquois.

De Smet · South Dakota State Radio System
RFSS 1 · Site 8 (hex 8) · NAC 478 · about 13 mi away
Control 159.015, 159.33, 159.885
Voice 160.2
Huron · South Dakota State Radio System
RFSS 1 · Site 40 (hex 28) · about 19 mi away
Control 159.105, 159.3
Voice 156.105, 159.435
Madison · South Dakota State Radio System
RFSS 1 · Site 28 (hex 1C) · NAC 47C · about 46 mi away
Control 159.78, 160.065
Voice 159.54, 159.915
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.