St. Louis Area Trunked Emergency Radio (SLATER)

System Name: St. Louis Area Trunked Emergency Radio (SLATER)
Location: St Louis Metro Area, IL MO
County: 6 Counties
System Type: Project 25 Phase I
System Voice: APCO-25 Common Air Interface Exclusive
System ID: Sysid: 4F2 WACN: BEE00
Last Updated: March 9, 2025, 02:04 am UTC   [Changed Site # 004 (JeffCo-North Simulcast) to 4 (JeffCo-North Simulcast)]
System Notes
See the WIKI for more information (unidentified talkgroups, RIDs, etc)
For the system used by the City of St Louis (with the rest of Missouri), see MOSWIN
Talkgroups seen using the 65xxx range are a ISSI patch talkgroup, usually for roaming between SLATER and MOSWIN
2/22 - It is possible that the Jefferson County sites are reversed.  Please update us if you can confirm locations.
Official site names: SLCNTY_N, SLCNTY_S, ST_CHRLS, JEFFCO_N, JEFFCO_S

P25 Table added 3/8/25 (verified on site 7, please confirm in use at all other sites)

Sites and Frequencies

Red (c) are control channel capable frequencies
RFSS Site Name County Freqs
1 (1) 001 (1) StL Co - Urban North St. Louis, MO 851.425851.4875851.6125851.9125851.950852.0625852.4125
    852.4625852.6375852.675852.9125852.975853.0625853.175
    853.2375853.4125853.5125c853.725c853.825c853.9125c 
1 (1) 002 (2) StL Co - Urban South St. Louis, MO 851.0375851.300851.450851.6625851.7375851.825851.975
    852.0375852.275852.4375852.6125852.725852.9375853.1125
    853.200853.300853.4375853.4625c853.6875c853.7875c853.9375c
1 (1) 003 (3) St Charles Co - Simulcast St. Charles, MO 851.0625851.0875851.2125851.2375851.400851.4625851.5375
    851.7625852.100852.5625852.7625852.800853.3375853.3625
    853.5875c853.625c853.8625c853.975c   
1 (1) 004 (4) JeffCo-North Simulcast Jefferson, MO 851.100851.3125851.750852.1125852.9625853.1625853.3125
    853.350c853.525c853.8125c853.9625c   
1 (1) 005 (5) JeffCo-South Simulcast Jefferson, MO 851.250851.475851.8125852.050852.7875853.3125c853.5625c
    853.7125c853.925c     
1 (1) 007 (7) WashU Danforth Campus St. Louis, MO 770.05625c770.55625c771.55625c771.98125c772.80625773.23125 
1 (1) 099 (63) StL Co - Site-On-Wheels (SOW) St. Louis, MO 770.46875c      

Talkgroups

St Louis County Police / Law

Muni C(entral), talkgroup 55425 (encrypted) is munis that used to be dispatched on the 2nd Precinct channel.
This currently includes Bel-Nor, Breckenridge Hills, Hillsdale, Normandy, Overland, St. John, Velda City, and Woodson Terrace.
For more information, see St Louis County database page County Police WIKI 

St Louis County Government
St Louis County - Interop
St Louis County - Training
St Louis County Office of Emergency Management
St Louis County - Fire / EMS
St Louis County - Fire Tactical
Regional - EMS / Hospitals

SCC - St Charles County, SLC - St Louis County

St Ann Police appear to be using Pubilc Works talkgroup (53721) for RADAR speed traps on evenings and weekends 

Municipal Public Works
East Central Dispatch Center (Richmond Heights)
West County Dispatch Center

Dispatching Town and Country Police, Frontenac Police (including Huntleigh Police), Frontenac Fire, Creve Coeur Police

Ferguson Police dispatch also dispatches:  Calverton Park Police, Country Club Hills Police, Flordell Hills Police

University of Missouri - St. Louis
Washington University (Danforth Campus)

See St Louis County Hospitals and Colleges for more information on WashU Danforth and WashU School of Medicine (at Barnes campus)

Central County Fire and Rescue (CCFR)

Serves St Charles County

St Charles County Department of Dispatch and Alarm (SCDDA)

SCCDA 15 - VFIRE 21    154.28  Fire Mutual Aid (at present, this is what out-of-County units respond in on).
SCCDA 16 - 7FIRE84D   773.85625 Simplex Fireground 

St Charles County - Law Enforcement
St Charles County - Interop
St Charles County Division of Emergency Management (SCCDEM)

Franklin County uses MOSWIN 
Franklin County database page

Also see Jefferson County Database page  WIKI

12513 30e1 D JeffCo Interop 7 Interop 7 [JC IO 7]

8/24 - Now hearing Two-Tone with Automated Dispatching, which appears to be related to Arnold Fire/EMS dispatch

Jefferson County - Fire Admin
St Louis Region Interop
Missouri Department of Transportation (MoDOT)
Federal Government