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State of Georgia Atlanta Trunked Radio System

System Name: State of Georgia Atlanta Trunked Radio System
Location: Atlanta, GA
County: Fulton
System Type: Project 25 Phase II
System Voice: APCO-25 Common Air Interface Exclusive
System ID: Sysid: 00B WACN: 92508
Last Updated: December 14, 2025, 20:22 pm UTC   [Updated 1 talkgroups for Georgia Tech Police]

Sites and Frequencies

FCC Callsigns Map Site Locations Report Broadcastify Calls Nodes
Key:###.####Ctrl control channel
Downtown Atlanta
RFSS 10 · ASite 010 · ANAC A
7 freqs · 7 control
851.725Ctrl852.0375Ctrl852.2625Ctrl852.625Ctrl853.625Ctrl853.675Ctrl853.850Ctrl

Talkgroups

Talkgroup Category Report
Key:enc partial encryption (some clear traffic)Online active on Broadcastify Calls (24h)
Georgia Dept of Transportation

Georgia DOT operates the Highway Emergency Response Operators (HERO) unit in metro Atlanta and the Coordinated Highway Assistance & Maintenance Program (CHAMP) outside metro Atlanta.

HERO Zone 1 (central) units cover I-85 from North Druid Hills south through the city to I-285 on the south end, I-75 from roughly I-285 south through the city to I-285 on the south end, Langford Parkway, and I-20 inside I-285.  These units use Alpha Dispatch channel at all times.

HERO Zone 2 (north) units cover I-85 from roughly North Druid Hills out, I-285 from GA-400 to I-20 on the east side, US-78, GA-400, I-285 from GA-400 to I-20 on the west side, I-75 from I-285 out on the northwest side, the Northwest Corridor Express Lanes, and I-575. These units use Bravo Dispatch most of the time, but use Alpha Dispatch when a 2nd dispatch channel is not in service.

HERO Zone 3 (south) seems to cover I-85, I-75 and I-675 roughly outside I-285 on the south side. These units use Charlie Dispatch during some busy rush hours, but use Alpha Dispatch when a 3rd dispatch channel is not in service.

HERO Northwest Corridor channel is used for sweeps and reversals of the Northwest Corridor express lane system.

HERO South Metro channel is used for sweeps and reversals of the South Metro express lane system.

Champ units operate outside the Atlanta metro area and conduct public roadside assistance and emergency response (like HERO in metro Atlanta) but also minor roadway maintenance tasks (unlike HERO).

CHAMP District 1 Northeast is I-85 from Buford (MM 115) northeast to state line.

CHAMP District 2 East is I-20 from Conyers (MM 82) east to state line.

CHAMP District 3 West is I-75 from McDonough (MM 216) south, I-85 from Newnan (MM 47) southwest, and I-185.

CHAMP District 4 Far Southwest is I-75 from north of Tifton, south to state line.

CHAMP District 5 Southeast is I-95 (all) and I-16 from east of Macon to Savannah.

CHAMP District 6 Northwest is I-575 (all), I-75 from Emerson (MM 283) northwest to state line and I-20 from Austell (MM 44) west to state line.

DEC HEX Mode Alpha TagDescriptionTag
901Online385THERO A DispatchHERO A Dispatch (Central Atlanta)Public Works
902Online386THERO B DispatchHERO B Dispatch (North Atlanta)Public Works
903387THERO C DispatchHERO C Dispatch (South Atlanta)Public Works
904Online388THERO A TacHERO A Tac (Major Incidents)Public Works
905389THERO B TacHERO B Tac (Major Incidents)Public Works
90638aTHERO C TacHERO C Tac (Major Incidents)Public Works
909Online38dTHERO NW CorridorHERO Northwest Corridor Express Lane ReversalsPublic Works
911Online38fTHERO South MetroHERO South Metro Express Lane ReversalsPublic Works
900Online384THERO AdminHERO AdminPublic Works
90738bTHERO EventsEventsPublic Works
913391TCHAMP Dist 1 NECHAMP District 1 NEPublic Works
914Online392TCHAMP Dist 2 ECHAMP District 2 EastTransportation
916Online394TCHAMP Dist 4 SWCHAMP District 4 SWPublic Works
917Online395TCHAMP Dist 5 SECHAMP District 5 SETransportation
918396TCHAMP Dist 6 NWCHAMP District 6 NWPublic Works
919397TCHAMP 3CHAMP Unknown DistrictPublic Works
Georgia Emergency Management Agency
DEC HEX Mode Alpha TagDescriptionTag
10003e8TGEMA MainMain/State Operations CenterEmergency Ops
10023eaTGEMA 1002Site OperationsEmergency Ops
10033ebTGEMA 1003Site OperationsEmergency Ops
10043ecTGEMA AtlantaAtlanta OperationsEmergency Ops
10053edTGEMA MaconMacon OperationsEmergency Ops
Georgia Tech Operations
DEC HEX Mode Alpha TagDescriptionTag
151Online097TLink to GTPD 151Link to Georgia Tech Police DispatcherLaw Dispatch
152098TLink to GTPD 152Link to Georgia Tech Police DispatcherLaw Dispatch
2010c9TGT Maintnce 201Maintenance 201Schools
2040ccTGT Maintnce 204Maintenance 204Schools
2060ceTGT Maintnce 206Maintenance 206Schools
2080d0TGT Maintnce 208Maintenance 208Schools
2510fbTGT Library Sec 1Library Security - PrimarySecurity
2520fcTGT Library Sec 2Library Security - AlternateSecurity
301Online12dTGT Parking EnfrcParking EnforcementSecurity
303Online12fTGT Shuttle DispStingerette Shuttle DispatchTransportation
604Online25cTGT Housing 604Housing 604Schools
605Online25dTGT Housing 605Housing 605Schools
606Online25eTGT Housing 606Housing 606Schools
607Online25fTGT Housing 607Housing 607Schools
608Online260TGT Housing 608Housing 608Schools
611Online263TGT Housing 611Housing 611Schools
Georgia Tech Police
DEC HEX Mode Alpha TagDescriptionTag
351Online15fT encGT Police DispPolice: DispatchLaw Dispatch
352160T encGT Police Tac-1Police: Tac-1Law Tac
353161T encGT Police Tac-2Police: Tac-2Law Tac
354162T encGT Police Tac-3Police: Tac-3Law Tac
356164T encGT Police EventsPolice: EventsLaw Tac
360168TGT Police MA-1Police: Mutual Aid 1Law Tac
Other
DEC HEX Mode Alpha TagDescriptionTag
100064TRadio Maint 100Radio Maintenance 100Business
103067TRadio Maint 103Radio Maintenance 103Business