About Bristol Police Frequencies
- Trunked radio systems that carry law-enforcement traffic here: South Dakota State Radio System: 3 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 Bristol, start with the Stickney site of South Dakota State Radio System, about 23 miles away. Its control channels: 155.55, 157.47, 159.045 MHz.
Aurora County channels that also cover Bristol
South Dakota State Radio System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Aurora County Sheriff | White Lake Public Safety | 1159 | 487 | D |
| Aurora County Sheriff | Aurora County Sheriff – Tactical Channel | 1160 | 488 | D |
| Aurora County Sheriff | Law 2 | 1163 | 48b | D |
Nearest trunked radio sites
Distances are measured from the center of Bristol.
Stickney · South Dakota State Radio System
RFSS 1 · Site 33 (hex 21) · NAC 470 · about 23 mi away
Control 155.55, 157.47, 159.045
Voice 159.39
Mitchell · South Dakota State Radio System
RFSS 1 · Site 11 (hex B) · NAC 470 · about 27 mi away
Control 159, 159.255, 159.84
Voice 155.64, 156.12, 159.45
Huron · South Dakota State Radio System
RFSS 1 · Site 40 (hex 28) · about 36 mi away
Control 159.105, 159.3
Voice 156.105, 159.435
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.