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Ada Police Frequencies

We do not have frequencies listed specifically for Ada in Perkins County, South Dakota yet. Countywide channels for Perkins County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Faith (South Dakota State Radio System), about 21 miles away.

About Ada 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 Ada, start with the Faith site of South Dakota State Radio System, about 21 miles away. Its control channels: 155.52, 157.47 MHz.

Perkins County channels that also cover Ada

South Dakota State Radio System

AgencyDescriptionTalkgroupHexMode
Perkins County SheriffLaw 1802322D
Perkins County SheriffPerkins County Sheriff – Dispatch804324D
Perkins County SheriffLaw 2803323D

Nearest trunked radio sites

Distances are measured from the center of Ada.

Faith · South Dakota State Radio System
RFSS 1 · Site 24 (hex 18) · about 21 mi away
Control 155.52, 157.47
Voice 159.27, 159.585
Reva (Slim Buttes) · South Dakota State Radio System
RFSS 1 · Site 32 (hex 20) · about 34 mi away
Control 159.105, 159.315
Voice 159.69, 160.02
Lemmon (Shade Hill) · South Dakota State Radio System
RFSS 1 · Site 38 (hex 26) · about 42 mi away
Control 158.58, 159.45
Voice 156.195, 159.045
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.