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  3. Tennessee Homeland Security District 7

Tennessee Homeland Security District 7

System Name: Tennessee Homeland Security District 7
Location: Various, TN
County: 7 Counties
System Type: NXDN NEXEDGE 4800
System Voice: NXDN Digital
System ID: HEX: ab DEC: 171
Last Updated: April 13, 2026, 11:42 am UTC   [Changed Talkgroup Category: Robertson County to Robertson County]
System Notes

Please see the WIKI for notes regarding scanning this system

4/26 - The System ID has possibly changed to 546 decimal.  Please confirm.

Sites and Frequencies

FCC Callsigns Map Site Locations Report
Key:###.####Ctrl control channel
SiteNameCountyFrequencies
001 (1)Clarksville EastMontgomery
7 freqs · 1 control
463.5125Ctrl451.88125451.89375452.2875452.33125461.38125461.3875
002 (2)WaverlyHumphreys
6 freqs · 1 control
463.5625Ctrl453.300453.700453.900460.100460.600
003 (3)DoverStewart
10 freqs · 1 control
453.50625Ctrl453.23125453.375453.48125453.721875453.725460.296875460.300460.303125460.45625
004 (4)McKinnonStewart
4 freqs · 1 control
453.31875Ctrl460.14375460.2875460.475
005 (5)Cumberland CityStewart
4 freqs · 1 control
453.24375Ctrl453.84375460.06875460.33125
006 (6)DicksonDickson
6 freqs · 1 control
452.3375Ctrl452.800453.3875453.675460.4375463.625
007 (7)CharlotteDickson
5 freqs · 1 control
463.9875Ctrl453.2375453.325463.98125464.78125
008 (8)ErinHouston
5 freqs · 1 control
460.425Ctrl452.975453.1875453.8125461.9875
009 (9)Sage HollowHouston
3 freqs · 1 control
453.7875Ctrl460.2125463.6875
010 (A)StewartHouston
1 freqs · 1 control
460.36875Ctrl
011 (B)McEwenHumphreys
4 freqs · 1 control
453.150Ctrl453.050453.7625453.925
012 (C)Hurricane MillsHumphreys
3 freqs · 1 control
460.6375Ctrl453.3625453.850
013 (D)New JohnsonvilleHumphreys
4 freqs · 1 control
453.600Ctrl453.7375460.1125464.125
014 (E)Clarksville WestMontgomery
9 freqs · 1 control
453.400Ctrl452.4375453.125453.475461.7875462.1375463.2625463.2875464.150
015 (F)CunninghamMontgomery
5 freqs · 1 control
463.3875Ctrl461.6375462.0125463.8125464.7125
016 (10)WoodlawnMontgomery
5 freqs · 1 control
463.3625Ctrl461.6875461.8375462.000464.525
017 (11)Ashland CityCheatham
6 freqs · 1 control
464.9375Ctrl460.3625460.575461.4625463.4625463.6875
018 (12)Pleasant ViewCheatham
5 freqs · 1 control
464.4625Ctrl453.4875460.6125461.8375463.4375
019 (13)Kingston SpringsCheatham
4 freqs · 1 control
464.7875Ctrl453.6875460.3375460.625
020 (14)SpringfieldRobertson
7 freqs · 1 control
454.54375Ctrl453.050454.275454.34375454.35625460.225460.325
021 (15)Cross PlainsRobertson
3 freqs · 1 control
454.04375Ctrl454.0375460.2625
022 (16)Cedar HillRobertson
3 freqs · 1 control
454.050Ctrl460.250460.6375
023 (17)White HouseRobertson
3 freqs · 1 control
453.3875Ctrl452.050460.1875

Talkgroups

Talkgroup Category Report
Key:Enc full encryptionenc partial encryption (some clear traffic)
District 7 Interop
DEC Mode Alpha TagDescriptionTag
55900DD7 DHS PRIMARYD7 Interop PrimaryInterop
55901DD7 DHS OPS 1D7 Interop Operations 1Interop
55902DD7 DHS OPS 2D7 Interop Operations 2Interop
Cheatham County

Also see Cheatham County database page 

DEC Mode Alpha TagDescriptionTag
51100DCheatham SheriffSheriff: DispatchLaw Dispatch
51102DCheatham ShrfRecSheriff: RecordsLaw Dispatch
51007DCheatham LawOps1County Law Ops 1Law Talk
51008DCheatham LawOps2County Law Ops 1Law Talk
51304DCheatham RescueRescue SquadEmergency Ops
51200DCheatham EMSCounty EMS: DispatchEMS Dispatch
51205DTSMC AC PatReprtTriStar Ashland City Medical Center (from Cheatham Co EMS)Hospital
51001DAshlandCity FireAshland City Fire: DispatchFire Dispatch
51011DAshCity FireTalkAshland City Fire: TalkFire-Talk
51006DKngstnSpr PoliceKingston Springs Police: DispatchLaw Dispatch
51003DKingstonSpr FireKingston Springs Fire: DispatchFire Dispatch
51005DPegram FirePegram Fire: DispatchFire Dispatch
51004DPleasantVw FirePleasant View Fire: DispatchFire Dispatch
Dickson County

Also see Dickson County database page

DEC Mode Alpha TagDescriptionTag
52100DDickson SheriffSheriff: DispatchLaw Dispatch
52101DDicksn Shrf JailJail ControlCorrections
52309DDC F/R ALERTCounty Fire/Rescue: DispatchFire Dispatch
52001DDcksn Incident 1County Incident 1Multi-Tac
52002DDcksn Incident 2County Incident 2Multi-Tac
52318DDickson EMA FireEMA Fire: DispatchFire Dispatch
52310DDC FD INCD 1County Fire: Incident 1Fire-Tac
52003DDcksn Incident 3County Incident 3Multi-Tac
52200DDickson EMS MainCounty EMS: MainEMS-Tac
52211DDC EMS STATION 1EMS: Station 1EMS Dispatch
52212DDC EMS STATION 2EMS: Station 2EMS Dispatch
52213DDC EMS STATION 3EMS: Station 3EMS Dispatch
52214DDC EMS STATION 4EMS: Station 4EMS Dispatch
52215DDC EMS STATION 5EMS: Station 5EMS Dispatch
52216DDC EMS STATION 6EMS: Station 6EMS Dispatch
52305DDC BUFD ALERTBurns Fire: DispatchFire Dispatch
52308DDC CLFD ALERTClaylick (White Bluff) Fire: DispatchFire Dispatch
52307DDC CFFD ALERTCumberland Furnace Fire: DispatchFire Dispatch
52005DDickson PoliceDickson Police: DispatchLaw Dispatch
52006DDickson PD Ops 1Dickson Police: Operations 1Law Tac
52300DDC CITY FIREDickson Fire: DispatchFire Dispatch
52316DDC DFD STA1 ALRTDickson Fire: Station 1Fire Dispatch
52317DDC DFD STA2 ALRTDickson Fire: Station 2Fire Dispatch
52306DDC CHFD ALERTCharlotte Fire: DispatchFire Dispatch
52312DDC TCFD ALERTTennessee City Fire: DispatchFire-Tac
52313DDC VLFD ALERTVanleer Fire: Operations Fire Dispatch
52315DYellowCreek FireYellow Creek Fire: DispatchFire Dispatch
Houston County

Also see Houston County database page

DEC Mode Alpha TagDescriptionTag
53100D encHouston SheriffSheriff: DispatchLaw Dispatch
53300DHouston FireDispCounty Fire: DispatchFire Dispatch
53200DHouston EMS DispEMS: DispatchEMS Dispatch
53503DHouston HighwayCounty Highway DepartmentPublic Works
53001DErin Fire DispErin Fire: DispatchFire Dispatch
Humphreys County

Also see Humphreys County database page

DEC Mode Alpha TagDescriptionTag
54100D EncHumphr SheriffSheriff: Dispatch Law Dispatch
54105D EncHumphr Shrf Ops1Sheriff: Operations 1Law Tac
54200DHumphreys EMS County EMS: Dispatch EMS Dispatch
54300DHumphreys FireCounty Fire: DispatchFire Dispatch
54001DHumphr Incident1County Incident 1Multi-Tac
54002DHumphr Incident2County Incident 2Multi-Tac
54003DHumphr Incident3County Incident 3Multi-Tac
54005DHumphr Event 1County Event 1Interop
54006DHumphr Event 2County Event 2Interop
54301DWaverly Fire OpsWaverly Fire Fire Dispatch
54012DNewJhnsvlle C/WNew Johnsonville CitywideMulti-Tac
54013DMcEwen CitywideMcEwen CitywideMulti-Tac
54600DHumphr Sch Bus 1County School: TransportationSchools
54601DHumphr Sch Adm 2County School: AdminSchools
Montgomery Co-Clarksville

See Clarksville on Montgomery County database page

DEC Mode Alpha TagDescriptionTag
1001DCDE DISPATCHDepartment of Electricity: DispatchUtilities
1002DCDE ENG DISPATCHDepartment of Electricity: EngineersUtilities
1003DCDE METERDepartment of Electricity: MeteringUtilities
1005DCGW SERVICEGas & Water ServiceUtilities
1006D encCGW GAS CONGas & Water Construction: GasUtilities
1007D encCGW WATER CONGas & Water Construction: WaterUtilities
1008DCGW SEWER CONGas & Water Construction: SewerUtilities
1009DCGW WATER METGas & Water: MeteringUtilities
1010DCGW WTP WWTPGas & Water: Wastewater TreatmentUtilities
1011DCGW COMMONGas & Water: CommonUtilities
Montgomery County

Also see the Montgomery County database page

DEC Mode Alpha TagDescriptionTag
55100D EncMC SO DISPATCHSheriff: DispatchLaw Dispatch
55101D EncMC SO TALK 1Sheriff: Talk-Around 1Law Tac
55102D EncMC SO TALK 2Sheriff: Talk-Around 2Law Tac
55103D EncMC SO Talk 3Sheriff: Talk-Around 3Law Tac
55105D EncMC SO RECORDSSheriff: RecordsLaw Tac
55108D EncMC SO OpsSheriff: OperationsLaw Talk
55004D EncMC SO ERTSheriff: Emergency Response TeamLaw Tac
55500D EncMC SO JAILCounty Jail: ControlCorrections
55107D EncMC SO DTFSheriff: Drug Task ForceLaw Tac
55400DMC EMA OPS Emergency ManagementEmergency Ops
55300D EncMC FD DISPATCHCounty Fire: DispatchFire Dispatch
55301D EncMC FD OPS 1County Fire: Operations 1Fire-Tac
55302D EncMC FD OPS 2County Fire: Operations 2Fire-Tac
55303DMC FD OPS 3County Fire: Operations 3Fire-Talk
55003DMC 911County 911Interop
55001DMC 911 INCDT 1County Incident 1Interop
55002DMC 911 INCDT 2County Incident 2Interop
55200D EncMC EMS DISPATCHCounty EMS: DispatchEMS Dispatch
55201D EncMC EMS OPS 1County EMS: Operations 1EMS-Tac
55202D EncMC EMS OPS 2County EMS: Operations 2EMS-Tac
55203D EncMC EMS LocutionCounty EMS: Locution (Auto Dispatch)EMS Dispatch
55006DMC 911 FT CAMPCounty - Fort Campbell InteropInterop
55005DMC 911 NGOCounty Government Services InteropInterop
11D encMont Animal CtrlAnimal ControlPublic Works
35DTN Highway MntCoTN Highway Dept-Montgomery County OfficePublic Works
Montgomery County Schools

See Schools on Montgomery County database page

DEC Mode Alpha TagDescriptionTag
2000DMont SchBusOps 1Buses Ops 1Schools
2007DMont SchBusOps 2Buses Ops 2Schools
2008DMont SchBusOps 3Buses Ops 3Schools
2016DMont SchBusOps 4Buses Ops 4Schools
2017DMont SchBusOps 5Buses Ops 5Schools
2021DMont SchBusOps 6Buses Ops 6Schools
2022DMont SchBusOps 7Buses Ops 7Schools
2023DMont SchBusOps 8Buses Ops 8Schools
2003DMont Schools 1School Operations 1Schools
2004DMont Schools 2School Operations 2Schools
2005DMont Schools 3School Operations 3Schools
2006DMont Schools 4School Operations 4Schools
2024DMont SchSpecEvntSpecial EventsSchools
Stewart County

Also see Steward County database page

DEC Mode Alpha TagDescriptionTag
59100DStewart SheriffSheriff: DispatchLaw Dispatch
59101DStewart Shrf OpsSheriff: OpsLaw Talk
59300D encStewart FireCounty Fire: DispatchFire Dispatch
59301DStewart FireOps1County Fire: Operations 1Fire-Tac
59200DStewart EMSCounty EMS: DispatchEMS Dispatch
59201DStewart EMS Ops1County EMS: Operations 1EMS-Tac
59001DStwrt 911 Event1County Event 1Interop
59002DStwrt 911 Event2County Event 2Interop
59003DStwrt 911 Event3County Event 3Interop
59600DStewart Schools1County Schools 1Schools
59605DStewart Schools2County Schools 2Schools
Greer Communications
DEC Mode Alpha TagDescriptionTag
1DGreer Tech 1TechniciansBusiness
5DGreer Demo 5Demo RadiosBusiness
Business
DEC Mode Alpha TagDescriptionTag
10DSiemers Farms 10Siemers(?) Farms: Truck Drivers (contractor for)Business
13Dtow trucks 13tow trucksBusiness
14D101stAirbrne Cab101st Airborne Cab Service Transportation
16Dcontractors 16contractors (Harrison?)Business
17DABC Cab BaseABC Cab: BaseTransportation
18DABC Cab MobilesABC Cab: MobilesTransportation
19Dconstruction 19construction companyBusiness
21DSiemers Farms Siemers(?) Farms (Fields, Trucks, Corn, Barn)Business
22Dproperty mgmt 22property management/maintenanceBusiness
26DVeterans Cab MobVeterans Cab: MobilesTransportation
27DVeterans Cab BasVeterans Cab: BaseTransportation
33Dpaving/quarry 33paving/quarry companyBusiness
38Dquarry 38quarry companyBusiness