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Sun Valley Lake Police Frequencies

We do not have frequencies listed specifically for Sun Valley Lake in Ringgold County, Iowa yet. Countywide channels for Ringgold County that may also cover this area are shown below when we have them. The closest trunked radio site we have is Mt. Ayr (Iowa Statewide Interoperable Communications System (ISICS)), about 14 miles away.

About Sun Valley Lake Police Frequencies

  • 4 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: Iowa Statewide Interoperable Communications System (ISICS): 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 Sun Valley Lake, start with the Mt. Ayr site of Iowa Statewide Interoperable Communications System (ISICS), about 14 miles away. Its control channels: 773.84375, 774.09375, 774.34375 MHz.

Ringgold County channels that also cover Sun Valley Lake

Dispatch

AgencyDescriptionFrequency (MHz)ToneModeFCC
Ringgold County Sheriffold-Sheriff Dispatch154.8675
In 159.3225
FMNKAD502
Ringgold County SheriffRinggold County Sheriff – Dispatch155.0100FMKAD502

Talk-around & Car-to-Car

AgencyDescriptionFrequency (MHz)ToneModeFCC
Ringgold County SheriffSheriff Information – Base155.5350152 DPLFMNKAD502
Ringgold County SheriffInformation- Mobile155.9100FMKAD502

Iowa Statewide Interoperable Communications System (ISICS)

AgencyDescriptionTalkgroupHexMode
Ringgold County SheriffLaw Dispatch54301d41dT
Ringgold County SheriffLaw 254302d41eT
Ringgold County SheriffLaw 354303d41fT
Ringgold County SheriffLaw 454304d420T

Nearest trunked radio sites

Distances are measured from the center of Sun Valley Lake.

Mt. Ayr · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 1 · Site 77 (hex 4D) · NAC 4C0 · about 14 mi away
Control 773.84375, 774.09375, 774.34375
Voice 773.59375
Van Wert · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 1 · Site 89 (hex 59) · NAC 4C0 · about 14 mi away
Control 769.95625, 770.20625, 770.45625
Voice 769.70625
Union Co Simulcast · Iowa Statewide Interoperable Communications System (ISICS)
RFSS 2 · Site 64 (hex 40) · NAC 4C2 · about 16 mi away
Control 770.90625, 774.53125, 774.78125
Voice 770.65625
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 Sun Valley Lake?

We do not have a dispatch channel listed specifically for Sun Valley Lake. County-level dispatch channels in the same county: Ringgold County Sheriff 154.8675 MHz; Ringgold County Sheriff 155.0100 MHz.