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Riverdale Police Frequencies

We do not have frequencies listed specifically for Riverdale in Watonwan County, Minnesota yet. Countywide channels for Watonwan County that may also cover this area are shown below when we have them. The closest trunked radio site we have is La Salle (Allied Radio Matrix for Emergency Response (ARMER)), about 2 miles away.

About Riverdale Police Frequencies

  • Trunked radio systems that carry law-enforcement traffic here: Allied Radio Matrix for Emergency Response (ARMER): 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 Riverdale, start with the La Salle site of Allied Radio Matrix for Emergency Response (ARMER), about 2 miles away. Its control channels: 858.9375, 859.9375 MHz.

Watonwan County channels that also cover Riverdale

Allied Radio Matrix for Emergency Response (ARMER)

AgencyDescriptionTalkgroupHexMode
Watonwan County SheriffWatonwan Law Main3422485b0D

Nearest trunked radio sites

Distances are measured from the center of Riverdale.

La Salle · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 3 · Site 30 (hex 1E) · about 2 mi away
Control 858.9375, 859.9375
Voice 851.2875, 851.9125, 852.9625, 854.9875
Madelia · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 3 · Site 8 (hex 8) · about 7 mi away
Control 854.6125
Perth · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 3 · Site 85 (hex 55) · about 13 mi away
Control 857.2375, 858.2125
Voice 851.5875, 852.4875, 852.9875, 859.9875
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.