About Sierra County 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.
- 1 conventional channel uses a digital mode (P25), which needs a scanner that decodes that mode.
Sierra County conventional frequencies
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Sierra County Sheriff | Sierra County Sheriff – Dispatch | 155.4900 In 154.8300 | 156.7 PL | FMN | KTZ351 |
| Sierra County Sheriff | Sierra County Sheriff – Dispatch | 155.4900 In 154.8300 | NAC 293 | P25 | KTZ351 |
Radio system sites in Sierra County
Program the control channel first; your scanner finds the voice channels from it.
Caballo Peak · New Mexico DTRS
RFSS 3 · Site 9 (hex 9) · NAC 850
Control 769.19375, 769.44375, 769.71875, 769.96875
Voice 770.21875, 770.70625
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.
Cities & communities in Sierra County
Common questions
What frequency do the police use in Sierra County?
Dispatch channels listed for Sierra County: Sierra County Sheriff 155.4900 MHz (156.7 PL); Sierra County Sheriff 155.4900 MHz (NAC 293).