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Grayson Police Frequencies

We do not have frequencies listed specifically for Grayson in Clinton County, Missouri yet. Countywide channels for Clinton County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Trimble 700 (Missouri Statewide Wireless Interoperable Network (MOSWIN)), about 5 miles away.

About Grayson Police Frequencies

  • 1 conventional channel is analog FM, so any scanner can receive it. Enter the frequency and set the tone shown in the table.

Clinton County channels that also cover Grayson

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Clinton County Sheriff BackupClinton County Sheriff – Dispatch156.2100
In 158.8800
072 DPLFMNKAG878

Nearest trunked radio sites

Distances are measured from the center of Grayson.

Trimble 700 · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 5 · Site 40 (hex 28) · NAC 1C0 · about 5 mi away
Control 769.20625, 769.45625
Voice 769.70625, 769.95625, 770.20625, 770.45625
Dearborn · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 5 · Site 11 (hex B) · NAC 1C9 · about 10 mi away
Control 155.4525, 170.9125
Voice 154.6725, 169.675, 171.675
Lathrop 700 · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 5 · Site 37 (hex 25) · NAC 1C3 · about 12 mi away
Control 771.35625, 772.18125
Voice 772.65625, 773.43125, 774.13125, 774.63125
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.