About Allison 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.
- 1 conventional channel uses a digital mode (NXDN48), which needs a scanner that decodes that mode.
- Trunked radio systems that carry law-enforcement traffic here: South Dakota State Radio System: 5 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 Allison, start with the Leola site of South Dakota State Radio System, about 14 miles away. Its control channels: 157.77, 157.86, 158.61 MHz.
Brown County channels that also cover Allison
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Brown County Sheriff | Sheriff 1 Aberdeen | 460.0750 In 465.0750 | RAN 18 | NXDN48 | WNAY986 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Brown County Sheriff | Sheriff 2 Hecla | 460.2000 In 465.2000 | 192.8 PL | FMN | WNAY986 |
South Dakota State Radio System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Brown County Sheriff | Law 1 Dispatch | 1234 | 4d2 | D |
| Brown County Sheriff | Law 3 Dispatch | 1242 | 4da | D |
| Brown County Sheriff | Law 2 | 1235 | 4d3 | D |
| Brown County Sheriff | Law 4 | 1238 | 4d6 | D |
| Brown County Sheriff | Brown County Sheriff – Tactical Channel | 1243 | 4db | D |
Nearest trunked radio sites
Distances are measured from the center of Allison.
Leola · South Dakota State Radio System
RFSS 1 · Site 54 (hex 36) · NAC 473 · about 14 mi away
Control 157.77, 157.86, 158.61
Voice 158.7
Aberdeen · South Dakota State Radio System
RFSS 1 · Site 1 (hex 1) · about 25 mi away
Control 156.15, 157.275, 159.375
Voice 159.225
Bowdle · South Dakota State Radio System
RFSS 1 · Site 7 (hex 7) · NAC 477 · about 53 mi away
Control 159.51, 159.87
Voice 156.225, 159.045
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 Allison?
We do not have a dispatch channel listed specifically for Allison. County-level dispatch channels in the same county: Brown County Sheriff 460.0750 MHz (RAN 18).