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Stephan Police Frequencies

We do not have frequencies listed specifically for Stephan in Hyde County, South Dakota yet. Countywide channels for Hyde County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Miller (South Dakota State Radio System), about 20 miles away.

About Stephan 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 (P25), which needs a scanner that decodes that mode.
  • 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 Stephan, start with the Miller site of South Dakota State Radio System, about 20 miles away. Its control channels: 155.58, 159.27 MHz.

Hyde County channels that also cover Stephan

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Hyde County SheriffDispatch Digital156.2100
In 153.8150
P25WQMJ341
Hyde County SheriffDispatch Analog156.2100
In 153.8150
FMNWQMJ341

South Dakota State Radio System

AgencyDescriptionTalkgroupHexMode
Hyde County SheriffCounty Law12614edD

Nearest trunked radio sites

Distances are measured from the center of Stephan.

Miller · South Dakota State Radio System
RFSS 1 · Site 10 (hex A) · NAC 47A · about 20 mi away
Control 155.58, 159.27
Voice 159.03, 159.465, 160.065
Reliance (Medicine Butte) · South Dakota State Radio System
RFSS 1 · Site 58 (hex 3A) · NAC 470 · about 21 mi away
Control 155.655, 156.03
Voice 155.85, 159.165
Pierre · South Dakota State Radio System
RFSS 1 · Site 3 (hex 3) · about 45 mi away
Control 159.795
Voice 156.135, 156.24, 159.42
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 Stephan?

We do not have a dispatch channel listed specifically for Stephan. County-level dispatch channels in the same county: Hyde County Sheriff 156.2100 MHz; Hyde County Sheriff 156.2100 MHz.