About Rock Creek Police Frequencies
- 4 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: STARCOM21 Statewide Illinois: 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 Rock Creek, start with the Niota site of STARCOM21 Statewide Illinois, about 8 miles away. Its control channels: 851.9, 852.425, 852.95 MHz.
Hancock County channels that also cover Rock Creek
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Hancock County Sheriff | Mobile Extenders | 151.1825 | FMN | WYC780 | |
| Hancock County Sheriff | Mobile Extenders | 151.3325 | 131.8 PL | FMN | WYC780 |
| Hancock County Sheriff | Hancock County Sheriff – Dispatch (Nauvoo) | 155.4150 In 158.9700 | 162.2 PL | FMN | WYC780 |
| Hancock County Sheriff | Hancock County Sheriff – Dispatch (Warsaw) | 155.4150 In 158.9700 | 162.2 PL | FMN | WYC780 |
STARCOM21 Statewide Illinois
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Hancock County Sheriff | Hancock County Sheriff – Dispatch (along with VHF) | 6056 | 17a8 | D |
| Hancock County Sheriff | Operations | 6058 | 17aa | D |
Nearest trunked radio sites
Distances are measured from the center of Rock Creek.
Niota · STARCOM21 Statewide Illinois
RFSS 2 · Site 10 (hex A) · NAC 143 · about 8 mi away
Control 851.9, 852.425, 852.95
Voice 851.375, 852.475, 853.475, 855.2125, 856.7875
Warsaw · STARCOM21 Statewide Illinois
RFSS 2 · Site 25 (hex 19) · NAC 144 · about 16 mi away
Control 852.35, 852.875, 853.4
Voice 851.825, 853.9, 853.975, 854.8375
Augusta · STARCOM21 Statewide Illinois
RFSS 2 · Site 11 (hex B) · NAC 141 · about 25 mi away
Control 851.9375, 852.4625, 852.9875
Voice 851.4125, 853.875, 857.3125
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 Rock Creek?
We do not have a dispatch channel listed specifically for Rock Creek. County-level dispatch channels in the same county: Hancock County Sheriff 151.1825 MHz; Hancock County Sheriff 151.3325 MHz (131.8 PL); Hancock County Sheriff 155.4150 MHz (162.2 PL); Hancock County Sheriff 155.4150 MHz (162.2 PL).