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Greenfield Police Frequencies

Greenfield in Franklin County, Massachusetts has 1 conventional frequency and 2 trunked talkgroups listed for local agencies. The closest trunked radio site we have is Shelburne Mountain (Massachusetts State Police), about 4 miles away.

About Greenfield Police Frequencies

  • 4 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
  • Trunked radio systems that carry law-enforcement traffic here: Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS): 1 talkgroup; Massachusetts State Police: 1 talkgroup; Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS): 3 talkgroups; Massachusetts State Police: 1 talkgroup. A trunking scanner is required, and it must support the system type shown.
  • To follow a trunked system, program a control channel first. For Greenfield, start with the Shelburne Mountain site of Massachusetts State Police, about 4 miles away. Its control channels: 854.3625, 859.7375 MHz.

Greenfield conventional frequencies

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Greenfield PolicePolice Operations460.5250
In 465.5250
151.4 PLFMNWQEG675

Greenfield trunked talkgroups

Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS)

AgencyDescriptionTalkgroupHexMode
Greenfield PolicePolice Operations2579a13D

Massachusetts State Police

AgencyDescriptionTalkgroupHexMode
Greenfield PolicePolice Operations41264a130D

Franklin County channels that also cover Greenfield

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Greenfield Community CollegeCampus Police462.4375
In 467.4375
141.3 PLFMNWQGV559

Talk-around & Car-to-Car

AgencyDescriptionFrequency (MHz)ToneModeFCC
FRCOG - PoliceBorden Mountain Tower Police WMLEC Tie453.4125
In 458.4125
206.5 PLFMN—
FRCOG - PoliceMount Grace Tower Police WMLEC Tie453.6000
In 458.6000
206.5 PLFMN—

Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS)

AgencyDescriptionTalkgroupHexMode
Franklin County SheriffMount Toby 1 Simulcast23028feD
Franklin County SheriffMount Toby 2 Simulcast2304900D
Franklin County SheriffFRCOG – Police Simulcast3699e73D

Massachusetts State Police

AgencyDescriptionTalkgroupHexMode
Franklin County SheriffCounty Police Dispatch (Tie to CoMIRS)59184e730D

Nearest trunked radio sites

Distances are measured from the center of Greenfield.

Shelburne Mountain · Massachusetts State Police
Site 16 (hex 10) · about 4 mi away
Control 854.3625, 859.7375
Voice 854.9875, 856.4875, 858.7625, 858.9375
Western Mass North Simulcast · Commonwealth Of Massachusetts Interoperable Radio System (CoMIRS)
RFSS 1 · Site 24 (hex 18) · NAC D10 · about 6 mi away
Control 852.5375, 853.1, 853.125, 853.3375
Voice 852.2125, 852.4375
Bernardston · Massachusetts State Police
Site 19 (hex 13) · about 7 mi away
Control 857.9375, 858.9875
Voice 854.9625, 856.7375, 857.4375
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 Greenfield?

Dispatch channels listed for Greenfield: Greenfield Police 460.5250 MHz (151.4 PL).

Are Greenfield police talkgroups encrypted?

None of the 2 talkgroups listed for Greenfield are marked encrypted.