About Afton Police Frequencies
- 3 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: South Dakota State Radio System: 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 Afton, start with the Huron site of South Dakota State Radio System, about 21 miles away. Its control channels: 159.105, 159.3 MHz.
Sanborn County channels that also cover Afton
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Sanborn County Sheriff | East (Artesion) | 453.5250 In 458.5250 | 136.5 PL | FM | WSHA257 |
| Sanborn County Sheriff | West (Woondsocket) | 453.5250 In 458.5250 | 136.5 PL | FM | WSHA257 |
| Sanborn County Sheriff | South (Letcher) | 453.5250 In 458.5250 | 136.5 PL | FM | WSHA257 |
South Dakota State Radio System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Sanborn County Sheriff | Sanborn County Sheriff – Dispatch | 1296 | 510 | D |
Nearest trunked radio sites
Distances are measured from the center of Afton.
Huron · South Dakota State Radio System
RFSS 1 · Site 40 (hex 28) · about 21 mi away
Control 159.105, 159.3
Voice 156.105, 159.435
De Smet · South Dakota State Radio System
RFSS 1 · Site 8 (hex 8) · NAC 478 · about 27 mi away
Control 159.015, 159.33, 159.885
Voice 160.2
Mitchell · South Dakota State Radio System
RFSS 1 · Site 11 (hex B) · NAC 470 · about 32 mi away
Control 159, 159.255, 159.84
Voice 155.64, 156.12, 159.45
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 Afton?
We do not have a dispatch channel listed specifically for Afton. County-level dispatch channels in the same county: Sanborn County Sheriff 453.5250 MHz (136.5 PL); Sanborn County Sheriff 453.5250 MHz (136.5 PL); Sanborn County Sheriff 453.5250 MHz (136.5 PL).