About Nathrop Police Frequencies
- 1 conventional channel uses a digital mode (P25), which needs a scanner that decodes that mode.
- Trunked radio systems that carry law-enforcement traffic here: State of Colorado DTRS: 6 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 Nathrop, start with the Buena Vista Correctional site of State of Colorado DTRS, about 6 miles away. Its control channels: 851.6375, 851.8, 853.4125 MHz.
- 3 listed entries are marked encrypted. No scanner can decode encrypted audio.
Chaffee County channels that also cover Nathrop
Jails & Corrections
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Chaffee County Sheriff | Jail operations | 853.6875 | NAC 293 | P25 | — |
State of Colorado DTRS
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Chaffee County Sheriff | Law Enforcement Tactical | 8719 | 220f | D |
| Chaffee County Sheriff | Law Enforcement Tactical | 8723 | 2213 | D |
| Chaffee County Sheriff | Law Enforcement Tactical | 8729 | 2219 | D |
3 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Chaffee County Sheriff | Law Enforcement Secure | 8718 | 220e | D Encrypted |
| Chaffee County Sheriff | Law Enforcement Secure | 8722 | 2212 | D Encrypted |
| Chaffee County Sheriff | Law Enforcement Secure | 8728 | 2218 | D Encrypted |
Nearest trunked radio sites
Distances are measured from the center of Nathrop.
Buena Vista Correctional · State of Colorado DTRS
RFSS 6 · Site 4 (hex 4) · NAC D14 · about 6 mi away
Control 851.6375, 851.8, 853.4125, 853.775
Voice 851.125, 854.1875, 854.6125, 856.5875
Bald Mountain South · State of Colorado DTRS
RFSS 6 · Site 15 (hex F) · NAC D1F · about 8 mi away
Control 852.4375, 852.75, 853.2125, 853.6
Voice 851.0875, 851.3375, 854.6375, 856.6125
Poncha Springs · State of Colorado DTRS
RFSS 6 · Site 70 (hex 46) · NAC D16 · about 17 mi away
Control 851.45, 851.975, 852.475, 853.625
Voice 851.275, 858.5375
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.