Olmsted County Public Service Frequencies

Most Olmsted County Public Service frequencies are now part of the Minnesota state-wide Allied Radio Matrix for Emergency Response (ARMER) System. The system is a Project 25 Standard, APCO-25 Common Air Interface Exclusive. An 800 Mhz digital trunking scanner, such as the Radio Shack Pro-106 is required to adequately monitor these frequencies.

Some county frequencies outside of Rochester are still of the conventional AM/FM type. Traditional AM/FM scanners, as well as the newer digital trunking scanners, are capable of monitoring these frequencies.

For more general information on the digital trunking system used in Olmsted county and throughout the state of Minnesota, see the presenation Trunked Radio Traffic - An overview covering Olmsted County and the Minnesota ARMER project by RARC member Robert Andrews, KØRDA.

See the Olmsted County Minnesota Radio Reference on radioreference.com for the latest frequencies for Olmsted County, Minnesota.

Refer the Minnesota Mobile Scanner Law before carrying or operating radios capable of receiving police frequencies in vehicles within the state of Minnesota.

Allied Radio Matrix for Emergency Response (ARMER) System

System Frequencies for Olmsted County

System Talkgroups for Olmsted County

Conventional Frequencies

Also see City Freq Web Site for Rochester, Minnesota frequency listings.