Skip to content

Greenwood Colony Police Frequencies

We do not have frequencies listed specifically for Greenwood Colony in Douglas County, South Dakota yet. Countywide channels for Douglas County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Lake Andes (Radar Hill) (South Dakota State Radio System), about 19 miles away.

About Greenwood Colony Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: South Dakota State Radio System: 3 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 Greenwood Colony, start with the Lake Andes (Radar Hill) site of South Dakota State Radio System, about 19 miles away. Its control channels: 157.8, 157.92 MHz.

Douglas County channels that also cover Greenwood Colony

South Dakota State Radio System

AgencyDescriptionTalkgroupHexMode
Douglas County SheriffDouglas County Sheriff – Dispatch1297511D
Douglas County SheriffLaw 11298512D
Douglas County SheriffLaw 21299513D

Nearest trunked radio sites

Distances are measured from the center of Greenwood Colony.

Lake Andes (Radar Hill) · South Dakota State Radio System
RFSS 1 · Site 36 (hex 24) · about 19 mi away
Control 157.8, 157.92
Voice 158.04, 158.61
Stickney · South Dakota State Radio System
RFSS 1 · Site 33 (hex 21) · NAC 470 · about 30 mi away
Control 155.55, 157.47, 159.045
Voice 159.39
Mitchell · South Dakota State Radio System
RFSS 1 · Site 11 (hex B) · NAC 470 · about 34 mi away
Control 159, 159.255, 159.84
Voice 155.64, 156.12, 159.45
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.