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OFallon Police Frequencies

OFallon in St. Charles County, Missouri has 0 conventional frequencies and 5 trunked talkgroups listed for local agencies. The closest trunked radio site we have is Weldon Spring (Missouri Statewide Wireless Interoperable Network (MOSWIN)), about 6 miles away.

About OFallon Police Frequencies

  • 1 conventional channel is analog FM, so any scanner can receive it. 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.
  • Trunked radio systems that carry law-enforcement traffic here: St. Louis Area Trunked Emergency Radio (SLATER): 5 talkgroups; Missouri Statewide Wireless Interoperable Network (MOSWIN): 1 talkgroup; St. Louis Area Trunked Emergency Radio (SLATER): 55 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 OFallon, start with the Weldon Spring site of Missouri Statewide Wireless Interoperable Network (MOSWIN), about 6 miles away. Its control channels: 152.66, 154.695 MHz.
  • 28 listed entries are marked encrypted. No scanner can decode encrypted audio.

OFallon trunked talkgroups

St. Louis Area Trunked Emergency Radio (SLATER)

AgencyDescriptionTalkgroupHexMode
St Charles Co Government/MunicipalO'Fallon/St Peters Police – Dispatch240915e1bD
O'Fallon PoliceO'Fallon Police – Traffic / RADAR240935e1dD
O'Fallon PoliceO'Fallon Police – Operations240945e1eD
O'Fallon PoliceO'Fallon Police – Events242735ed1D
1 encrypted talkgroup (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
O'Fallon PoliceO'Fallon Police – Main240905e1aD

St. Charles County channels that also cover OFallon

Tactical

AgencyDescriptionFrequency (MHz)ToneModeFCC
St. Charles County SheriffOperations154.7700NAC 293P25KF8233

Jails & Corrections

AgencyDescriptionFrequency (MHz)ToneModeFCC
St. Charles County SheriffJail / Correctional Facility460.2875
In 465.2875
423 DPLFMNWPQA797

Missouri Statewide Wireless Interoperable Network (MOSWIN)

AgencyDescriptionTalkgroupHexMode
St. Charles County SheriffSt. Charles County Sheriff – Dispatch241705e6aD

St. Louis Area Trunked Emergency Radio (SLATER)

AgencyDescriptionTalkgroupHexMode
St Charles Co Government/MunicipalSt Charles County Community College Police – Dispatch241405e4cD
St Charles LawSt. Louis Metro Air Support Police (Helicopters)235115bd7D
St Charles LawCounty Police – Family Arena235125bd8D
St Charles LawSt Charles Law – Dispatch235145bdaD
Federal Government UnconfirmedDrug Enforcement Agency – Operations233765b50D
Municipal Public WorksSt Ann Public Works / Police – Tactical – RADAR Traps53721d1d9D
St Charles LawCounty Police – Car-to-Car /235105bd6D
St Charles LawSt Charles Law – Tactical Channel (Unit-to-Unit)235135bd9D
St Charles LawDrug Task Force235205be0D
St Charles LawSt Charles Law – Tactical Channel270326998D
St Charles LawOperations279846d50D
St Charles LawOperations279856d51D
St Charles LawOperations279866d52D
St Charles LawOperations279876d53D
St Charles LawOperations279886d54D
St Charles LawOperations279896d55D
St Charles LawOperations279906d56D
St Charles LawOperations279916d57D
St Charles LawOperations279926d58D
St Charles LawOperations279936d59D
St Charles LawOperations279946d5aD
St Charles LawOperations279956d5bD
St Charles LawOperations279966d5cD
St Charles LawOperations279976d5dD
St Charles LawOperations279986d5eD
St Charles LawOperations279996d5fD
Municipal PolicePoint-to-Point (Can be patched to 155.37)55427d883D
St Charles Co Government/MunicipalSCC Juvenile Justice Center236205c44D
27 encrypted talkgroups (cannot be monitored)
AgencyDescriptionTalkgroupHexMode
Municipal PoliceSt. Louis Community College – Campus Police Dispatch (SLCCPD)55356d83cD
St Charles LawCounty Police – Dispatch235085bd4D
University of Missouri - St. LouisUniversity of Missouri – St. Louis – Dispatch55409d871D
Washington University (Danforth Campus)Washington University (Danforth Campus) – Dispatch55419d87bD
Municipal PoliceSt. Louis Community College – Campus Police Support (SLCC SUPT)55003d6dbD
Municipal PoliceLaw Encrypted55347d833D
Municipal PoliceLaw Encrypted55348d834D
Municipal PoliceLaw Encrypted55349d835D
Municipal PoliceLaw Encrypted55350d836D
Municipal PoliceLaw Encrypted55351d837D
Municipal PoliceLaw Encrypted55352d838D
Municipal PoliceLaw Encrypted55353d839D
Municipal PoliceLaw Encrypted55354d83aD
Municipal PoliceLaw Encrypted55697d991D
Municipal PoliceLaw Encrypted55698d992D
Municipal PoliceLaw Encrypted55699d993D
Municipal PoliceLaw Encrypted55700d994D
Municipal PoliceLaw Encrypted57995e28bD
Municipal PoliceLaw Encrypted57996e28cD
Municipal PoliceLaw Encrypted57997e28dD
Municipal PoliceLaw Encrypted57998e28eD
St Charles LawOperations235195bdfD
St Louis Region InteropRegional Interop SWAT11270D
St Charles Co Government/MunicipalSt Charles (City) Court Officers235005bccD
St Charles Co Government/MunicipalCourthouse Jail Operations235015bcdD
St Charles Co Government/MunicipalSt Charles County Jail – Laundry/Intakes236135c3dD
St Charles Co Government/MunicipalSt Charles County Jail – Operations236145c3eD

Nearest trunked radio sites

Distances are measured from the center of OFallon.

Weldon Spring · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 3 · Site 16 (hex 10) · NAC 1C2 · about 6 mi away
Control 152.66, 154.695
Voice 152.03, 152.165, 152.51
St Charles Co - Simulcast · St. Louis Area Trunked Emergency Radio (SLATER)
RFSS 1 · Site 3 (hex 3) · NAC 4F3 · about 7 mi away
Control 853.5875, 853.625, 853.8625, 853.975
Voice 851.0625, 851.0875, 851.2125, 851.2375, 851.4, 851.4625, 851.5375, 851.6875, 851.7625, 852.1, 852.5625, 852.7625, 852.8, 853.3375, 853.3625
Metro Transit - North Simulcast · Missouri Statewide Wireless Interoperable Network (MOSWIN)
RFSS 2 · Site 7 (hex 7) · NAC 1C7 · about 15 mi away
Control 851.275, 852.8375, 853.0375, 853.4875
Voice 852.2375, 853.8875
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

Are OFallon police talkgroups encrypted?

1 of the 5 talkgroups listed for OFallon are marked fully or partly encrypted; a scanner cannot decode encrypted audio.