About Vernon 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 Vernon, start with the Watertown site of South Dakota State Radio System, about 32 miles away. Its control channels: 157.89, 158.67 MHz.
Grant County channels that also cover Vernon
South Dakota State Radio System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Grant County Sheriff | Law 1 | 1087 | 43f | D |
| Grant County Sheriff | Grant County Sheriff – Dispatch | 1089 | 441 | D |
| Grant County Sheriff | Sheriff Car/Car | 1090 | 442 | D |
Nearest trunked radio sites
Distances are measured from the center of Vernon.
Watertown · South Dakota State Radio System
RFSS 1 · Site 41 (hex 29) · NAC 477 · about 32 mi away
Control 157.89, 158.67
Voice 158.01, 158.52
Summit · South Dakota State Radio System
RFSS 1 · Site 13 (hex D) · NAC 47D · about 32 mi away
Control 156.015, 158.64, 159.165, 160.05
Voice 157.3125, 160.515
Toronto · South Dakota State Radio System
RFSS 1 · Site 34 (hex 22) · NAC 47F · about 35 mi away
Control 157.5, 157.845, 159.975
Voice 155.685, 160.335
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.