About Graball 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: Sumner County Public Safety (TN): 13 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 Graball, start with the Sumner County site of Sumner County Public Safety (TN), about 7 miles away. Its control channels: 453.3125, 453.3625, 460.125 MHz.
- 12 listed entries are marked encrypted. No scanner can decode encrypted audio.
Sumner County channels that also cover Graball
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Sumner County Sheriff | Sumner County Sheriff – Dispatch (Channel 1) | 460.3000 In 465.3000 | 136.5 PL | FMN | WZX668 |
| Sumner County Sheriff | District 5 Intercity | 462.7375 In 467.7375 | 306 DPL | FMN | — |
| Volunteer State Community College Unconfirmed | Campus Police | 461.7000 In 466.7000 | 110.9 PL | FMN | WQOY553 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Sumner County Sheriff | Operations | 453.5250 In 458.5250 | 110.9 PL | FMN | KIM774 |
| Sumner County Sheriff | Countywide Net (Channel 2) | 460.0750 In 465.0750 | 136.5 PL | FMN | WZX668 |
| Sumner County Sheriff | Extenders | 460.5625 In 465.5625 | FMN | WZX668 |
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Sumner County Sheriff | Mutual Aid Net | 460.4000 In 465.4000 | FMN | WZX668 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Sumner County Sheriff | Sumner County Jail (Channel 1) | 467.7625 | 136.5 PL | FMN | — |
| Sumner County Sheriff | Sumner County Jail (Channel 2) | 467.9000 | 100.0 PL | FMN | — |
Sumner County Public Safety (TN)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Sumner County Sheriff | SWAT (Countywide) | 2044 | 7fc | T |
12 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Sumner County Sheriff | Sumner County Sheriff – Dispatch | 2041 | 7f9 | T Encrypted |
| Sumner County Sheriff | Patrol | 4074 | fea | T Encrypted |
| Sumner County Sheriff | ERT | 2047 | 7ff | T Encrypted |
| Sumner County Sheriff | ERT | 2050 | 802 | T Encrypted |
| Sumner County Sheriff | ERT | 2053 | 805 | T Encrypted |
| Sumner County Sheriff | 18th Judicial Drug Task Force – Operations (JDTF) | 4001 | fa1 | T Encrypted |
| Sumner County Sheriff | 18th Judicial Drug Task Force – Operations (JDTF) | 4002 | fa2 | T Encrypted |
| Sumner County Sheriff | Sumner County Sheriff – Tactical Channel | 4065 | fe1 | T Encrypted |
| Sumner County Sheriff | Operations | 4068 | fe4 | T Encrypted |
| Sumner County Sheriff | Operations | 4071 | fe7 | T Encrypted |
| Sumner County Sheriff | School Resource Officers (SRO) | 4077 | fed | T Encrypted |
| Sumner County Sheriff | Sumner County Sheriff – Tactical Channel | 4079 | fef | T Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Graball.
Sumner County · Sumner County Public Safety (TN)
RFSS 10 · Site 10 (hex A) · NAC 00A · about 7 mi away
Control 453.3125, 453.3625, 460.125, 460.3125, 460.4375
Voice 453.575, 460.0375, 460.0875, 460.475
White House · Tennessee Advanced Communications Network (TACN)
RFSS 1 · Site 36 (hex 24) · about 10 mi away
Control 769.35625, 770.00625
Voice 769.60625, 770.35625, 770.80625, 771.08125, 773.78125
Ward Lane/Westmoreland (*) · Tennessee Advanced Communications Network (TACN)
RFSS 2 · Site 57 (hex 39) · about 13 mi away
Control 851.975, 852.225
Voice 852.6625, 852.9625, 853.45, 853.8125
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 Graball?
We do not have a dispatch channel listed specifically for Graball. County-level dispatch channels in the same county: Sumner County Sheriff 460.3000 MHz (136.5 PL); Sumner County Sheriff 462.7375 MHz (306 DPL).