About Griffith Creek 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: Tennessee Valley Authority - Security and Emergency Management: 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 Griffith Creek, start with the Palmer site of Tennessee Advanced Communications Network (TACN), about 3 miles away. Its control channels: 851.375 MHz.
Marion County channels that also cover Griffith Creek
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Marion County Sheriff | Municipal Police | 155.1450 In 158.8950 | 110.9 PL | FMN | WPGI694 |
| Marion County Sheriff Backup | Dispatch Backup | 155.4900 In 155.9100 | 127.3 PL | FMN | WYV413 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Marion County Sheriff Backup | Secondary Backup | 154.0400 | FMN | WYV413 |
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Marion County Sheriff Backup | Grundy/Marion Sheriff – Private | 156.0150 | FMN | WYV413 |
Tennessee Valley Authority - Security and Emergency Management
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Systemwide | Law Main Dispatch | 5001 | 1389 | T |
Nearest trunked radio sites
Distances are measured from the center of Griffith Creek.
Palmer · Tennessee Advanced Communications Network (TACN)
RFSS 2 · Site 79 (hex 4F) · about 3 mi away
Control 851.375
Voice 851.5875, 851.875, 852.2, 852.4, 853.1
Sequatchie/Marion (*) · Tennessee Advanced Communications Network (TACN)
RFSS 2 · Site 69 (hex 45) · about 11 mi away
Control 854.775, 855.4625
Lone Oak · Tennessee Advanced Communications Network (TACN)
RFSS 2 · Site 31 (hex 1F) · NAC 2A0 · about 11 mi away
Control 769.35625, 769.78125
Voice 770.08125, 770.90625, 771.48125, 773.05625
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 Griffith Creek?
We do not have a dispatch channel listed specifically for Griffith Creek. County-level dispatch channels in the same county: Marion County Sheriff 155.1450 MHz (110.9 PL).