About Grafton Police Frequencies
- 1 conventional channel is analog FM, so any scanner can receive it. 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: 4 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 Grafton, start with the De Smet site of South Dakota State Radio System, about 24 miles away. Its control channels: 159.015, 159.33, 159.885 MHz.
Miner County channels that also cover Grafton
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Miner County Sheriff | Miner County 911 Dispatch | 158.7600 In 153.8450 | 100.0 PL | FM | KBI814 |
South Dakota State Radio System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Miner County Sheriff | Miner County Sheriff – Dispatch | 1409 | 581 | D |
| Miner County Sheriff | Law 1 | 1410 | 582 | D |
| Miner County Sheriff | Law 2 | 1411 | 583 | D |
| Miner County Sheriff | Fire | 1413 | 585 | D |
Nearest trunked radio sites
Distances are measured from the center of Grafton.
De Smet · South Dakota State Radio System
RFSS 1 · Site 8 (hex 8) · NAC 478 · about 24 mi away
Control 159.015, 159.33, 159.885
Voice 160.2
Madison · South Dakota State Radio System
RFSS 1 · Site 28 (hex 1C) · NAC 47C · about 26 mi away
Control 159.78, 160.065
Voice 159.54, 159.915
Huron · South Dakota State Radio System
RFSS 1 · Site 40 (hex 28) · about 37 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.
Common questions
What frequency do the police use in Grafton?
We do not have a dispatch channel listed specifically for Grafton. County-level dispatch channels in the same county: Miner County Sheriff 158.7600 MHz (100.0 PL).