About Morrison Police Frequencies
- 3 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: 20 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 Morrison, start with the Ustick site of STARCOM21 Statewide Illinois, about 6 miles away. Its control channels: 851.9625, 852.4875, 853.9 MHz.
- 18 listed entries are marked encrypted. No scanner can decode encrypted audio.
Morrison trunked talkgroups
STARCOM21 Statewide Illinois
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Whiteside County Sheriff 911 | Whiteside County Sheriff 911 – Dispatch (Simulcast 154.74) | 34450 | 8692 | D |
| Whiteside County Sheriff 911 | Whiteside County Sheriff 911 – Tactical Channel | 34451 | 8693 | D |
18 encrypted talkgroups (cannot be monitored)
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Whiteside County Sheriff 911 | Whiteside County Sheriff 911 – Dispatch – Sterling/Rock Falls | 35305 | 89e9 | D Encrypted |
| Whiteside County Sheriff 911 | Western Dispatch – Secondary | 35306 | 89ea | D Encrypted |
| Whiteside County Sheriff 911 Unconfirmed | DB/Narcotics | 34453 | 8695 | D Encrypted |
| Whiteside County Sheriff 911 | SWAT | 34454 | 8696 | D Encrypted |
| Whiteside County Sheriff 911 Unconfirmed | MP/Event | 34455 | 8697 | D Encrypted |
| Whiteside County Sheriff 911 | Rock Falls Police – Operations (Channel 2) | 35230 | 899e | D Encrypted |
| Whiteside County Sheriff 911 | Rock Falls Police – Event | 35231 | 899f | D Encrypted |
| Whiteside County Sheriff 911 | Rock Falls Police – Detectives | 35232 | 89a0 | D Encrypted |
| Whiteside County Sheriff 911 | Rock Falls Police – Administration | 35233 | 89a1 | D Encrypted |
| Whiteside County Sheriff 911 | Rock Falls Police/Sterling Police – Detectives | 35234 | 89a2 | D Encrypted |
| Whiteside County Sheriff 911 | Sterling Police – Detectives | 35308 | 89ec | D Encrypted |
| Whiteside County Sheriff 911 | Sterling/Rock Falls – SWAT | 35309 | 89ed | D Encrypted |
| Whiteside County Sheriff 911 | Sterling Police – Administration | 35310 | 89ee | D Encrypted |
| Whiteside County Sheriff 911 | Sterling Police – Detail | 35311 | 89ef | D Encrypted |
| Whiteside County Sheriff 911 | Car-to-Car | 34452 | 8694 | D Encrypted |
| Whiteside County Sheriff 911 | Administration | 34458 | 869a | D Encrypted |
| Whiteside County Sheriff 911 | Sterling Police – Car-to-Car | 35307 | 89eb | D Encrypted |
| Whiteside County Sheriff 911 | Transport | 34457 | 8699 | D Encrypted |
Whiteside County channels that also cover Morrison
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Whiteside County Sheriff 911 (Morrison) | Sheriff / Rural Law Dispatch (Simulcast TG34450) | 154.7400 In 155.7300 | 103.5 PL | FMN | KSA930 |
| Whiteside County Sheriff 911 (Morrison) | Mobile Extenders (to 155.73) | 158.9700 | 103.5 PL | FMN | KSA930 |
Tactical
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Whiteside County Sheriff 911 (Morrison) | Car-to-Car | 154.8900 | 103.5 PL | FMN | KSA930 |
Nearest trunked radio sites
Distances are measured from the center of Morrison.
Ustick · STARCOM21 Statewide Illinois
RFSS 1 · Site 44 (hex 2C) · NAC 14B · about 6 mi away
Control 851.9625, 852.4875, 853.9
Voice 851.4375, 856.0125
Albany · STARCOM21 Statewide Illinois
RFSS 1 · Site 6 (hex 6) · NAC 149 · about 11 mi away
Control 769.71875, 770.91875, 774.30625
Voice 769.41875, 773.30625, 854.4625
Primary · Federal Correctional Institution, Thomson
RFSS 1 · Site 1 (hex 1) · NAC 6E1 · about 14 mi away
Control 406.6125, 407.0125, 407.4125, 408.0125
Voice 408.6125, 409.2125, 409.675, 410, 410.2, 410.4
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 Morrison?
We do not have a dispatch channel listed specifically for Morrison. County-level dispatch channels in the same county: Whiteside County Sheriff 911 (Morrison) 154.7400 MHz (103.5 PL); Whiteside County Sheriff 911 (Morrison) 158.9700 MHz (103.5 PL).
Are Morrison police talkgroups encrypted?
18 of the 20 talkgroups listed for Morrison are marked fully or partly encrypted; a scanner cannot decode encrypted audio.