Skip to content

Lawrence Police Frequencies

Lawrence in Mercer County, New Jersey has 2 conventional frequencies and 0 trunked talkgroups listed for local agencies. The closest trunked radio site we have is Simulcast (Mercer County Interoperable Public Safety Radio System), about 2 miles away.

About Lawrence Police Frequencies

  • 6 conventional channels are analog FM, so any scanner can receive them. Enter the frequency and set the tone shown in the table.
  • 1 conventional channel uses a digital mode (DMR), which needs a scanner that decodes that mode.
  • Trunked radio systems that carry law-enforcement traffic here: Mercer County Interoperable Public Safety Radio System: 20 talkgroups; New Jersey Interoperability Communications System (NJICS): 1 talkgroup; Princeton University: 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 Lawrence, start with the Simulcast site of Mercer County Interoperable Public Safety Radio System, about 2 miles away. Its control channels: 500.45, 500.75, 500.975 MHz.
  • 19 listed entries are marked encrypted. No scanner can decode encrypted audio.

Lawrence conventional frequencies

Tactical

AgencyDescriptionFrequency (MHz)ToneModeFCC
Lawrence PoliceSecondary Backup453.4250
In 458.4250
186.2 PLFMNWQFP264
Lawrence PolicePolice TRS Backup453.8250
In 458.8250
103.5 PLFMNKA35555

Mercer County channels that also cover Lawrence

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
College of New Jersey PoliceCollege of New Jersey Police – Dispatch463.4250
In 468.4250
DMR WPRM546
Mercer County SheriffMercer County Sheriff – Dispatch453.5750
In 458.5750
103.5 PLFMNWPKJ922

Tactical

AgencyDescriptionFrequency (MHz)ToneModeFCC
Mercer County SheriffCounty Crime Alert (Licensed to Ewing Twp.)453.2250
In 458.2250
103.5 PLFMNWYR741
Mercer County SheriffMercer County Sheriff – Tactical Channel453.6250
In 458.6250
167.9 PLFMNWPKJ922

Jails & Corrections

AgencyDescriptionFrequency (MHz)ToneModeFCC
Mercer County SheriffCounty Department of Corrections (Low Power)453.9250131.8 PLFMNWPCT502

Mercer County Interoperable Public Safety Radio System

AgencyDescriptionTalkgroupHexMode
Mercer County SheriffHopewell Township – Police41019aD
Mercer County SheriffLawrence Township – Police41319dD
Mercer County SheriffCounty Park Rangers3826D
Mercer County SheriffLawrence Township – Police41419eD
Mercer County SheriffMercer County Crime Watch408198D
15 encrypted talkgroups (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Mercer County SheriffCounty Sheriff – Dispatch311fD
Mercer County SheriffEwing Township – Police Dispatch4129D
Mercer County SheriffCounty Sheriff – Metro3220D
Mercer County SheriffCounty Sheriff – Courthouse3422D
Mercer County SheriffCounty Sheriff – Airport3523D
Mercer County SheriffEwing Township – Police422aD
Mercer County SheriffEwing Township – Police432bD
Mercer County SheriffEwing Township – Police452dD
Mercer County SheriffEwing Township – Police462eD
Mercer County SheriffEwing Township – Police472fD
Mercer County SheriffEwing Township – Police4830D
Mercer County SheriffCounty Prosecutor310136D
Mercer County SheriffCounty Prosecutor311137D
Mercer County SheriffCounty Prosecutor312138D
Mercer County SheriffCounty Prosecutor36716fD

New Jersey Interoperability Communications System (NJICS)

1 encrypted talkgroup (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Mercer County SheriffWest Winsdor Police49211339T

Princeton University

2 encrypted talkgroups (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Public SafetyPublic Safety Dispatch201c9D
Public SafetyPublic Safety Tactical204ccD

Nearest trunked radio sites

Distances are measured from the center of Lawrence.

Simulcast · Mercer County Interoperable Public Safety Radio System
RFSS 1 · Site 1 (hex 1) · NAC 582 · about 2 mi away
Control 500.45, 500.75, 500.975
Voice 501.3125, 501.35, 501.5125, 501.5875, 501.6625, 501.8, 502.05, 502.6, 502.75, 502.775
Ewing · New Jersey Transit
Site 52 (hex 34) · about 5 mi away
Voice 854.8375, 857.5375
Site 1 · Princeton University
RFSS 1 · Site 1 (hex 1) · NAC 4F1 · about 5 mi away
Control 507.4625, 508.2125, 508.3625, 508.4625
Voice 506.4875, 507.3625
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 Lawrence?

We do not have a dispatch channel listed specifically for Lawrence. County-level dispatch channels in the same county: College of New Jersey Police 463.4250 MHz; Mercer County Sheriff 453.5750 MHz (103.5 PL).