About London Police Frequencies
- 2 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: Ohio MARCS-IP: Multi-Agency Radio Communications: 1 talkgroup; Ohio MARCS-IP: Multi-Agency Radio Communications: 21 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 London, start with the London site of Ohio MARCS-IP: Multi-Agency Radio Communications, about 3 miles away. Its control channels: 771.65625, 774.08125 MHz.
London conventional frequencies
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| London Police | London Police | 154.7400 In 156.1500 | 192.8 PL | FMN | KDB456 |
London trunked talkgroups
Ohio MARCS-IP: Multi-Agency Radio Communications
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| London Police | London Police Dispatch | 31002 | 791a | D |
Madison County channels that also cover London
Dispatch
| Agency | Description | Frequency (MHz) | Tone | Mode | FCC |
|---|---|---|---|---|---|
| Madison County Sheriff | Madison County Sheriff – Dispatch /Car to Car | 154.8150 In 155.9100 | 192.8 PL | FMN | KNAT896 |
Ohio MARCS-IP: Multi-Agency Radio Communications
| Agency | Description | Talkgroup | Hex | Mode |
|---|---|---|---|---|
| Madison County Sheriff | Madison County Sheriff – Dispatch | 31010 | 7922 | D |
| Madison County Sheriff | Madison County Sheriff – Tactical Channel | 31025 | 7931 | D |
| Madison County Sheriff | Madison County Sheriff – Tactical Channel | 31028 | 7934 | D |
| Madison County Sheriff | Sheriff Event | 31015 | 7927 | D |
| Madison County State Corrections | London Correctional Institution – Perimeter Operations | 52537 | cd39 | D |
| Madison County State Corrections | Madison Correctional Institution – Perimeter Operations | 52538 | cd3a | D |
| Madison County State Corrections | London Correctional Institution – General Operations | 52575 | cd5f | D |
| Madison County State Corrections | London Correctional Institution – Housing Operations | 52579 | cd63 | D |
| Madison County State Corrections | London Correctional Institution – Special Operations | 52586 | cd6a | D |
| Madison County State Corrections | London Correctional Institution – Special Operations | 52590 | cd6e | D |
| Madison County State Corrections | London Correctional Institution – Maintenance Operations | 52595 | cd73 | D |
| Madison County State Corrections | London Correctional Institution – Supervisors | 52599 | cd77 | D |
| Madison County State Corrections | London Correctional Institution – Announcements | 52674 | cdc2 | D |
| Madison County State Corrections | Madison Correctional Institution – General Operations | 52728 | cdf8 | D |
| Madison County State Corrections | Madison Correctional Institution – Maintenance Operations | 52731 | cdfb | D |
| Madison County State Corrections | Madison Correctional Institution – Special Operations | 52734 | cdfe | D |
| Madison County State Corrections | Madison Correctional Institution – Special Operations | 52738 | ce02 | D |
| Madison County State Corrections | Madison Correctional Institution – Supervisors | 52742 | ce06 | D |
| Madison County State Corrections | Madison Correctional Institution – Housing Operations | 52746 | ce0a | D |
| Madison County State Corrections | Madison Correctional Institution – Announcements | 52751 | ce0f | D |
| Madison County State Corrections | Adult Parole Authority – Chillicothe Unit | 52829 | ce5d | D |
Nearest trunked radio sites
Distances are measured from the center of London.
London · Ohio MARCS-IP: Multi-Agency Radio Communications
RFSS 1 · Site 6 (hex 6) · NAC 345 · about 3 mi away
Control 771.65625, 774.08125
Voice 769.43125, 769.80625, 770.75625, 771.38125, 851.925, 852.05, 852.275
Darby (West Jefferson) · Ohio MARCS-IP: Multi-Agency Radio Communications
RFSS 1 · Site 63 (hex 3F) · NAC 34E · about 10 mi away
Control 774.08125, 852.9375, 853.425
Voice 769.80625, 770.75625, 771.38125, 851.1375, 851.3875, 851.7375, 852.0875
Midway · Ohio MARCS-IP: Multi-Agency Radio Communications
RFSS 1 · Site 48 (hex 30) · NAC 340 · about 13 mi away
Control 853.0875, 854.7375
Voice 851.05, 851.2875, 851.45, 851.675
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 London?
Dispatch channels listed for London: London Police 154.7400 MHz (192.8 PL).
Are London police talkgroups encrypted?
None of the 1 talkgroups listed for London are marked encrypted.