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Sherman Police Frequencies

We do not have frequencies listed specifically for Sherman in Mason County, Illinois yet. Countywide channels for Mason County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Sand Ridge/Manito (STARCOM21 Statewide Illinois), about 11 miles away.

About Sherman Police Frequencies

  • 11 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
  • 2 conventional channels use a digital mode (NXDN48), which needs a scanner that decodes that mode.
  • 1 listed entry is marked encrypted. No scanner can decode encrypted audio.

Mason County channels that also cover Sherman

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Mason County SheriffSheriff / Law (San Jose)151.3025
In 154.1675
NXDN48WSHF679
Mason County SheriffMason County Sheriff – Dispatch (Teheran)155.5800
In 158.8950
RAN 55NXDN48 WSHF679
Mason County SheriffRemote Input Tone158.8950110.9 PLFMNWSHF679
Mason County SheriffRemote Input Tone158.8950114.8 PLFMNWSHF679
Mason County SheriffRemote Input Tone158.8950127.3 PLFMNWSHF679
Mason County SheriffMobile Extenders173.2750CSQFMN—
Mason County SheriffMobile Extenders (Havana)173.3750516 DPLFMN—
Mason County SheriffMobile Extenders173.375074.4 PLFMN—
Mason County SheriffMobile Extenders (GMRS)462.7000225.7 PLFMN—
Mason County SheriffMobile Extenders467.8875306 DPLFMN—
Mason County SheriffMobile Extenders467.9125CSQFMN—
Mason County SheriffMobile Extenders467.9125114.8 PLFMN—

Jails & Corrections

AgencyDescriptionFrequency (MHz)ToneModeFCC
Mason County SheriffJail155.9700155 DPLFMNKBG225

Nearest trunked radio sites

Distances are measured from the center of Sherman.

Sand Ridge/Manito · STARCOM21 Statewide Illinois
RFSS 2 · Site 23 (hex 17) · NAC 14A · about 11 mi away
Control 852.3125, 852.8375, 856.2125
Voice 851.475, 860.2125, 860.3625
Atterberry · STARCOM21 Statewide Illinois
RFSS 2 · Site 32 (hex 20) · NAC 147 · about 13 mi away
Control 851.95, 852.475, 853.3125
Voice 851.425, 853.8875, 859.3625
Canton · STARCOM21 Statewide Illinois
RFSS 2 · Site 56 (hex 38) · NAC 14F · about 23 mi away
Control 770.18125, 774.55625, 774.78125
Voice 770.94375
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.

Common questions

What frequency do the police use in Sherman?

We do not have a dispatch channel listed specifically for Sherman. County-level dispatch channels in the same county: Mason County Sheriff 151.3025 MHz; Mason County Sheriff 155.5800 MHz (RAN 55); Mason County Sheriff 158.8950 MHz (110.9 PL); Mason County Sheriff 158.8950 MHz (114.8 PL).