About Lyman Police Frequencies
- Trunked radio systems that carry law-enforcement traffic here: Harrison County Public Safety: 15 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 Lyman, start with the Gulfport *Confirmed LCN* site of Harrison County Public Safety, about 2 miles away. Its control channels: 851.15, 851.4, 851.675 MHz.
Harrison County channels that also cover Lyman
Harrison County Public Safety
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Harrison County Sheriff | Harrison County Sheriff – Dispatch | 609 | 261 | D |
| Harrison County Fire/EMS | Fire Training | 762 | 2fa | D |
| Harrison County Sheriff | Narcotics | 549 | 225 | D |
| Harrison County Sheriff | Courthouse Security | 557 | 22d | D |
| Harrison County Sheriff | Animal Control | 562 | 232 | D |
| Harrison County Sheriff | Harrison County Sheriff – Tactical Channel | 610 | 262 | D |
| Harrison County Sheriff | Harrison County Sheriff – Tactical Channel | 611 | 263 | D |
| Harrison County Sheriff | Harrison County Sheriff – Tactical Channel | 612 | 264 | D |
| Harrison County Sheriff | Harrison County Sheriff – Tactical Channel | 613 | 265 | D |
| Harrison County Sheriff | Court Baliffs | 615 | 267 | D |
| Harrison County Sheriff | Harrison County Narcotics | 913 | 391 | D |
| Harrison County Sheriff | Adult Detention Center Operations | 628 | 274 | D |
| Harrison County Sheriff | Adult Detention Center Operations | 629 | 275 | D |
| Harrison County Sheriff | Adult Detention Center Events | 630 | 276 | D |
| Harrison County Sheriff | Adult Detention Center Maintenance | 631 | 277 | D |
Nearest trunked radio sites
Distances are measured from the center of Lyman.
Gulfport *Confirmed LCN* · Harrison County Public Safety
Site 1 (hex 1) · about 2 mi away
Control 851.15, 851.4, 851.675, 851.95
Voice 851.8125, 851.8875, 852.2, 852.275, 852.3375, 852.5625, 852.675, 852.7875, 852.85, 853.1, 853.2625, 853.3875, 853.5125, 853.65, 853.7625
Biloxi *Confirmed LCN* · Harrison County Public Safety
Site 2 (hex 2) · about 2 mi away
Control 851.0625, 851.325, 852.475, 852.725, 853.3375
Voice 851.125, 851.475, 851.725, 851.775, 852.075, 852.125, 852.4, 852.9, 853.15, 853.7125, 853.8875
Harrison County · Mississippi Wireless Information Network (MSWIN)
RFSS 1 · Site 17 (hex 11) · about 6 mi away
Control 773.06875, 773.31875, 773.56875, 773.81875
Voice 770.19375, 770.44375, 770.69375, 770.94375, 771.68125, 772.33125, 772.73125, 774.63125
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.