About Huntsville 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 Huntsville, start with the East Grand Forks site of Allied Radio Matrix for Emergency Response (ARMER), about 4 miles away. Its control channels: 857.4375, 857.7625 MHz.
- 3 listed entries are marked encrypted. No scanner can decode encrypted audio.
Polk County channels that also cover Huntsville
Allied Radio Matrix for Emergency Response (ARMER)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Polk County Sheriff | Polk Law Dispatch | 51700 | c9f4 | D |
| Polk County Sheriff | County LE Roam | 51731 | ca13 | D |
| Polk County Sheriff | Polk Law | 51702 | c9f6 | D |
| Polk County Sheriff | Polk Law | 51703 | c9f7 | D |
| Polk County Sheriff | Polk Law | 51704 | c9f8 | D |
| Polk County Sheriff | Polk Law | 51705 | c9f9 | D |
3 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Polk County Sheriff | Grand Forks ND Patch | 51764 | ca34 | D Encrypted |
| East Grand Forks Police | East Grand Fork Police Department Tactical | 51716 | ca04 | D Encrypted |
| Polk County Sheriff | Polk Law | 51706 | c9fa | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Huntsville.
East Grand Forks · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 6 · Site 18 (hex 12) · NAC 406 · about 4 mi away
Control 857.4375, 857.7625
Voice 851.375, 851.875, 857.2625
Angus · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 6 · Site 16 (hex 10) · NAC 404 · about 16 mi away
Control 856.9625, 858.2625
Voice 852.3875, 853.8875, 859.2375
Crookston · Allied Radio Matrix for Emergency Response (ARMER)
RFSS 6 · Site 17 (hex 11) · NAC 401 · about 17 mi away
Control 854.9625, 858.9875
Voice 852.4875, 855.9625, 856.4375
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.