About Prairie City Police Frequencies
- 1 conventional channel is analog FM, so any scanner can receive it. Enter the frequency and set the tone shown in the table.
Grant County channels that also cover Prairie City
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| County Law Enforcement | Sheriff's Office Dispatch and Patrol | 154.7250 | FMN | — |
Nearest trunked radio sites
Distances are measured from the center of Prairie City.
Black Mountain · Umatilla Morrow Radio and Data District
RFSS 169 · Site 209 (hex D1) · NAC 254 · about 59 mi away
Control 769.29375, 770.59375, 771.96875
Voice 772.36875
Heppner · Umatilla Morrow Radio and Data District
RFSS 169 · Site 177 (hex B1) · NAC 254 · about 75 mi away
Control 770.11875, 771.71875, 772.71875
Voice 774.46875
Coombs Canyon · Umatilla Morrow Radio and Data District
RFSS 169 · Site 201 (hex C9) · NAC 254 · about 79 mi away
Control 769.36875, 771.04375, 772.39375
Voice 772.81875
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.