About Harrison Police Frequencies
- 3 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: Montana Public Safety Communications System: 2 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 Harrison, start with the Whitehall site of Montana Public Safety Communications System, about 19 miles away. Its control channels: 153.845, 154.905 MHz.
Madison County channels that also cover Harrison
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Madison County Sheriff | Sheriff 1 Dispatch (includes Madison Police and Madison Valley Fire/EMS) | 155.0250 In 153.9350 | 141.3 PL | FMN | WNRR222 |
Talk-around & Car-to-Car
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Madison County Sheriff | Sheriff 2 | 154.0250 | FMN | WQAS328 | |
| Madison County Sheriff | Madison County Sheriff – Alternate | 159.0825 | FMN | WQHI513 |
Montana Public Safety Communications System
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Madison County Sheriff | Madison County Sheriff – Dispatch | 7165 | 1bfd | D |
| Madison County Sheriff | Madison County Sheriff – Tactical Channel | 7162 | 1bfa | D |
Nearest trunked radio sites
Distances are measured from the center of Harrison.
Whitehall · Montana Public Safety Communications System
RFSS 1 · Site 34 (hex 22) · NAC 160 · about 19 mi away
Control 153.845, 154.905
Voice 154.725, 154.8, 161.9375
Nixon Ridge · Gallatin County / Bozeman
RFSS 1 · Site 4 (hex 4) · NAC 820 · about 28 mi away
Control 856.2625, 856.7625, 857.0875, 857.9875, 858.4625, 858.9375, 859.4625, 859.9375
Nixon Ridge · Montana Public Safety Communications System
RFSS 1 · Site 31 (hex 1F) · NAC 160 · about 28 mi away
Control 154.235, 154.74
Voice 154.875, 161.875
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 Harrison?
We do not have a dispatch channel listed specifically for Harrison. County-level dispatch channels in the same county: Madison County Sheriff 155.0250 MHz (141.3 PL).