About Chowchilla Police Frequencies
- 5 conventional channels are analog FM, so any scanner can receive them. 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.
- 1 listed entry is marked encrypted. No scanner can decode encrypted audio.
Chowchilla conventional frequencies
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Chowchilla Police | Chowchilla Police – Dispatch | 460.5250 In 465.5250 | NAC D26 | P25 Encrypted | WNKZ358 |
Madera County channels that also cover Chowchilla
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Madera County Sheriff | Valley Dispatch | 150.9950 In 156.2400 | 156.7 PL | FMN | WPKF373 |
| Madera County Sheriff | High Country Dispatch | 151.0700 In 159.1650 | 156.7 PL | FMN | WPFY706 |
| Madera County Sheriff | Court Security | 151.1150 In 156.1800 | 156.7 PL | FM | WPVL424 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Madera County Sheriff | Madera County Sheriff – Tactical Channel | 153.3350 In 158.2800 | 156.7 PL | FMN | WQMK833 |
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Madera County Sheriff | Jail Operations | 155.9700 In 158.8500 | FM | KNBT931 |
Nearest trunked radio sites
Distances are measured from the center of Chowchilla.
Central California Women's Facility / Valley State Prison · California Department of Corrections and Rehabilitation
RFSS 1 · Site 10 (hex A) · NAC 2AA · about 5 mi away
Control 856.1625, 857.2625, 858.2625, 858.9375
Voice 859.2625
Mt Bullion · Merced County (East)
Site 1 (hex 1) · about 31 mi away
Control 858.2375, 858.5375, 859.2375
Voice 854.3625, 856.2375
Mt. Bullion · California Radio Interoperable System (CRIS)
RFSS 1 · Site 3 (hex 3) · NAC 9D3 · about 31 mi away
Control 770.20625, 770.94375, 773.54375, 773.81875
Voice 774.28125, 774.79375
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 Chowchilla?
Dispatch channels listed for Chowchilla: Chowchilla Police 460.5250 MHz (NAC D26).