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Mountain Park Police Frequencies

We do not have frequencies listed specifically for Mountain Park in Gwinnett County, Georgia yet. Countywide channels for Gwinnett County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Stone Mountain (Stone Mountain Park P25), about 7 miles away.

About Mountain Park Police Frequencies

  • 9 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: Gwinnett County Public Safety (GA): 28 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 Mountain Park, start with the Stone Mountain site of Stone Mountain Park P25, about 7 miles away. Its control channels: 857.0875, 857.6875, 858.0125 MHz.
  • 28 listed entries are marked encrypted. No scanner can decode encrypted audio.

Gwinnett County channels that also cover Mountain Park

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
US Army Corps of EngineersBuford Dam Project – Law Enforcement165.0375103.5 PLFMN—

Tactical

AgencyDescriptionFrequency (MHz)ToneModeFCC
Gwinnett County PoliceGwinnett County Police – Tactical Channel (Back-up)453.1125FMNKB75710
Gwinnett County PoliceGwinnett County Police – Tactical Channel (Back-up)458.1125FMNKB75710
Gwinnett County PolicePolice Low Power Mic (2 watts)458.2125FMNWNRX995
Gwinnett County SheriffSimplex Talkaround – Outside County use only854.7875FMN—

Talk-around & Car-to-Car

AgencyDescriptionFrequency (MHz)ToneModeFCC
Gwinnett County PoliceGwinnett County Police – Alternate460.2250
In 465.2250
FMNWNMB525
Gwinnett County PoliceGwinnett County Police – Alternate460.2750
In 465.2750
FMNWNMN776
Gwinnett County PoliceGwinnett County Police – Alternate460.4500
In 465.4500
FMNWNMB525
Gwinnett County PoliceGwinnett County Police – Alternate460.5750FMNWNMN776

Gwinnett County Public Safety (GA)

28 encrypted talkgroups (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Gwinnett County SheriffALL DPS1075129ffD
Gwinnett County Sheriff UnconfirmedSugar HILL SCH Dispatch109012a95D
Gwinnett County Sheriff UnconfirmedDuluth DUL Dispatch109052a99D
Gwinnett County Sheriff UnconfirmedLilburn LIL Dispatch109232aabD
Gwinnett County Sheriff UnconfirmedNorcross NOR Dispatch109292ab1D
Gwinnett County Sheriff UnconfirmedSnellville SNL Dispatch109372ab9D
Gwinnett County Sheriff UnconfirmedSuwanee SUW Dispatch109432abfD
Gwinnett County SheriffGCPD DIST1110132b05D
Gwinnett County SheriffGCPD DIST2110152b07D
Gwinnett County SheriffGCPD DIST3110172b09D
Gwinnett County SheriffGCPD DIST4110192b0bD
Gwinnett County SheriffGCPD DIST5110212b0dD
Gwinnett County SheriffGCPD DIST6110232b0fD
Gwinnett County SheriffGCSO Sheriff's Office FLD Operations112112bcbD
Gwinnett County Sheriff UnconfirmedSugar HILL SCH Tactical109032a97D
Gwinnett County Sheriff UnconfirmedDuluth DUL Tactical 1109072a9bD
Gwinnett County Sheriff UnconfirmedLilburn LIL Tactical 1109252aadD
Gwinnett County Sheriff UnconfirmedNorcross NOR Tactical 1109332ab5D
Gwinnett County Sheriff UnconfirmedSnellville SNL Tactical 1109392abbD
Gwinnett County Sheriff UnconfirmedSnellville SNL Tactical 2109412abdD
Gwinnett County Sheriff UnconfirmedSuwanee SUW Tactical 1109452ac1D
Gwinnett County SheriffGCPD Tactical 1110612b35D
Gwinnett County SheriffGCPD Tactical 2110632b37D
Gwinnett County SheriffGCPD Tactical 3110652b39D
Gwinnett County SheriffGCPD Tactical 4110672b3bD
Gwinnett County SheriffGCPD Tactical 5110692b3dD
Gwinnett County SheriffGCPD Tactical 6110712b3fD
Gwinnett County SheriffGCSO Sheriff's Office FLD Tactical 1112132bcdD

Nearest trunked radio sites

Distances are measured from the center of Mountain Park.

Stone Mountain · Stone Mountain Park P25
Project 25 · RFSS 1 · Site 1 (hex 1) · NAC 6A1 · about 7 mi away
Control 857.0875, 857.6875, 858.0125, 858.3375
Voice 851.9375, 853.7375, 856.6875
Simulcast · DeKalb County Public Safety P25
Project 25 · RFSS 1 · Site 6 (hex 6) · NAC 1F0 · about 7 mi away
Control 854.3125, 854.6125, 854.6375
Voice 851.5625, 851.9875, 852.1125, 854.0125, 855.0125, 855.0625, 855.6875, 855.7125, 856.0125, 856.3125, 856.3375, 856.7125, 856.9625, 857.3125, 857.6375, 857.7125, 857.9625
Simulcast · Gwinnett County Public Safety (GA)
RFSS 2 · Site 1 (hex 1) · NAC 270 · about 12 mi away
Control 854.8125, 854.8375, 855.4875, 855.7875
Voice 851.1375, 851.2125, 851.2375, 851.3875, 852.3375, 852.3875, 852.9625, 853.1125, 853.1375, 853.3875, 853.4875, 854.7875, 855.3125, 855.7625, 855.8125, 856.2875, 856.8125, 856.8375, 856.9125, 857.2875, 857.8125, 857.8375, 857.9125
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.