About Mercerville 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.
- 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 Mercerville, start with the Simulcast site of Mercer County Interoperable Public Safety Radio System, about 4 miles away. Its control channels: 500.45, 500.75, 500.975 MHz.
- 19 listed entries are marked encrypted. No scanner can decode encrypted audio.
Mercer County channels that also cover Mercerville
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| College of New Jersey Police | College of New Jersey Police – Dispatch | 463.4250 In 468.4250 | DMR Encrypted | WPRM546 | |
| Mercer County Sheriff | Mercer County Sheriff – Dispatch | 453.5750 In 458.5750 | 103.5 PL | FMN | WPKJ922 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Mercer County Sheriff | County Crime Alert (Licensed to Ewing Twp.) | 453.2250 In 458.2250 | 103.5 PL | FMN | WYR741 |
| Mercer County Sheriff | Mercer County Sheriff – Tactical Channel | 453.6250 In 458.6250 | 167.9 PL | FMN | WPKJ922 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Mercer County Sheriff | County Department of Corrections (Low Power) | 453.9250 | 131.8 PL | FMN | WPCT502 |
Mercer County Interoperable Public Safety Radio System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Mercer County Sheriff | Hopewell Township – Police | 410 | 19a | D |
| Mercer County Sheriff | Lawrence Township – Police | 413 | 19d | D |
| Mercer County Sheriff | County Park Rangers | 38 | 26 | D |
| Mercer County Sheriff | Lawrence Township – Police | 414 | 19e | D |
| Mercer County Sheriff | Mercer County Crime Watch | 408 | 198 | D |
15 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Mercer County Sheriff | County Sheriff – Dispatch | 31 | 1f | D Encrypted |
| Mercer County Sheriff | Ewing Township – Police Dispatch | 41 | 29 | D Encrypted |
| Mercer County Sheriff | County Sheriff – Metro | 32 | 20 | D Encrypted |
| Mercer County Sheriff | County Sheriff – Courthouse | 34 | 22 | D Encrypted |
| Mercer County Sheriff | County Sheriff – Airport | 35 | 23 | D Encrypted |
| Mercer County Sheriff | Ewing Township – Police | 42 | 2a | D Encrypted |
| Mercer County Sheriff | Ewing Township – Police | 43 | 2b | D Encrypted |
| Mercer County Sheriff | Ewing Township – Police | 45 | 2d | D Encrypted |
| Mercer County Sheriff | Ewing Township – Police | 46 | 2e | D Encrypted |
| Mercer County Sheriff | Ewing Township – Police | 47 | 2f | D Encrypted |
| Mercer County Sheriff | Ewing Township – Police | 48 | 30 | D Encrypted |
| Mercer County Sheriff | County Prosecutor | 310 | 136 | D Encrypted |
| Mercer County Sheriff | County Prosecutor | 311 | 137 | D Encrypted |
| Mercer County Sheriff | County Prosecutor | 312 | 138 | D Encrypted |
| Mercer County Sheriff | County Prosecutor | 367 | 16f | D Encrypted |
New Jersey Interoperability Communications System (NJICS)
1 encrypted talkgroup (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Mercer County Sheriff | West Winsdor Police | 4921 | 1339 | T Encrypted |
Princeton University
2 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Public Safety | Public Safety Dispatch | 201 | c9 | D Encrypted |
| Public Safety | Public Safety Tactical | 204 | cc | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Mercerville.
Simulcast · Mercer County Interoperable Public Safety Radio System
RFSS 1 · Site 1 (hex 1) · NAC 582 · about 4 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
Trenton Simulcast · New Jersey Interoperability Communications System (NJICS)
RFSS 1 · Site 18 (hex 12) · NAC 39D · about 4 mi away
Control 852.7125, 853.2125, 854.2625, 858.6625
Voice 851.225, 851.725, 851.7625, 852.4, 852.425
Ewing · New Jersey Transit
Site 52 (hex 34) · about 6 mi away
Voice 854.8375, 857.5375
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 Mercerville?
We do not have a dispatch channel listed specifically for Mercerville. 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).