Skip to content

River Sioux Police Frequencies

We do not have frequencies listed specifically for River Sioux in Harrison County, Iowa yet. Countywide channels for Harrison County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Mondamin (Iowa Statewide Interoperable Communications System (ISICS)), about 7 miles away.

About River Sioux Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: Iowa Statewide Interoperable Communications System (ISICS): 2 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 River Sioux, start with the Mondamin site of Iowa Statewide Interoperable Communications System (ISICS), about 7 miles away. Its control channels: 769.40625, 769.71875, 769.96875 MHz.
  • 1 listed entry is marked encrypted. No scanner can decode encrypted audio.

Harrison County channels that also cover River Sioux

Iowa Statewide Interoperable Communications System (ISICS)

AgencyDescriptionTalkgroupHexMode
Harrison County SheriffLaw 1319237cb3T
1 encrypted talkgroup (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Harrison County SheriffLaw Tactical319267cb6T

Nearest trunked radio sites

Distances are measured from the center of River Sioux.

Mondamin · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 1 · Site 142 (hex 8E) · NAC 4C0 · about 7 mi away
Control 769.40625, 769.71875, 769.96875
Voice 769.21875
Logan · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 1 · Site 41 (hex 29) · NAC 4C1 · about 16 mi away
Control 770.15625, 770.40625, 770.90625
Voice 769.90625
Woodbine · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 1 · Site 141 (hex 8D) · NAC 4C0 · about 18 mi away
Control 772.39375, 772.94375, 774.13125
Voice 770.95625
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.