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Clark County Police Frequencies

Clark County in Missouri has 0 countywide conventional frequencies and 3 countywide talkgroups in our database. Use the list of 11 cities and communities below for local police departments.

About Clark County Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: Missouri Statewide Wireless Interoperable Network (MOSWIN): 1 talkgroup; STARCOM21 Statewide Illinois: 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 Clark County, start with the Medill / Kahoka site of Missouri Statewide Wireless Interoperable Network (MOSWIN). Its control channels: 155.64, 171.4375 MHz.
  • 1 listed entry is marked encrypted. No scanner can decode encrypted audio.

Clark County trunked talkgroups

Missouri Statewide Wireless Interoperable Network (MOSWIN)

AgencyDescriptionTalkgroupHexMode
Clark County SheriffClark County Sheriff – Dispatch2580364cbD

STARCOM21 Statewide Illinois

AgencyDescriptionTalkgroupHexMode
Clark County SheriffClark County Sheriff – Dispatch8301206dD
1 encrypted talkgroup (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Clark County SheriffClark County Sheriff – Tactical Channel83042070D

Radio system sites in Clark County

Program the control channel first; your scanner finds the voice channels from it.

Medill / Kahoka · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 1 · Site 33 (hex 21) · NAC 1C3
Control 155.64, 171.4375
Voice 155.385, 155.49, 155.895, 172.6125, 172.725
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.

Cities & communities in Clark County

Common questions

Are Clark County police talkgroups encrypted?

1 of the 3 talkgroups listed for Clark County are marked fully or partly encrypted; a scanner cannot decode encrypted audio.