About Orrock Police Frequencies
- Trunked radio systems that carry law-enforcement traffic here: Allied Radio Matrix for Emergency Response (ARMER): 9 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 Orrock, start with the Sherburne - Wright Co. Simulcast site of Allied Radio Matrix for Emergency Response (ARMER), about 6 miles away. Its control channels: 851.475, 851.85 MHz.
- 3 listed entries are marked encrypted. No scanner can decode encrypted audio.
Sherburne County channels that also cover Orrock
Allied Radio Matrix for Emergency Response (ARMER)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Sherburne County Sheriff | County Court | 25112 | 6218 | D |
| Sherburne County Sheriff | Jail | 25126 | 6226 | D |
| Sherburne County Sheriff | Jail Booking | 25154 | 6242 | D |
| Sherburne County Sheriff | Community Corrections & Probation | 25162 | 624a | D |
| Sherburne County Sheriff | Sheriff Jail | 25206 | 6276 | D |
| Sherburne County Sheriff | Jail (4) | 25208 | 6278 | D |
3 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Sherburne County Sheriff | Sherburne Law Main 1E | 25142 | 6236 | D Encrypted |
| Sherburne County Sheriff | Sherburne Law 2E | 25144 | 6238 | D Encrypted |
| Sherburne County Sheriff | Sherburne County Sheriff – Tactical Channel | 25146 | 623a | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Orrock.
Sherburne - Wright Co. Simulcast · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 4 · Site 40 (hex 28) · NAC 40F · about 6 mi away
Control 851.475, 851.85
Voice 851.175, 851.275, 851.575, 852.325, 852.775, 852.9, 853.175, 853.575, 858.3625
Gilman - Simulcast · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 4 · Site 49 (hex 31) · NAC 400 · about 18 mi away
Control 852.4, 852.725
Voice 851.425, 851.8, 851.9, 852.275, 852.875, 853.475, 853.525, 853.825
St. Cloud - Prison · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 4 · Site 29 (hex 1D) · about 22 mi away
Control 856.2375, 857.2375
Voice 858.7375, 859.4375
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.