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Department of Public Safety (DPS) (TX)


Texas Department of Public Safety

The Texas Department of Public Safety (otherwise known as DPS), is a state law enforcement agency responsible for "enforcing laws, administering regulatory programs, managing records, educating the public, and managing emergencies, both directly and through interaction with other agencies."

Texas DPS is divided into 6 Regions, with multiple Communications Centers for each region. The regional headquarters are in:

  • Dallas (Reg. 1)
  • Houston (Reg. 2)
  • Weslaco (Reg. 3)
  • El Paso (Reg. 4)
  • Lubbock (Reg. 5)
  • San Antonio (Reg. 6)
  • State Capitol (Rgn. 7)
  • Austin (State Headquarters)

According to a press release dated 10/21/2010, the DPS will close communications centers in Sherman, Texas City, Beaumont, Ozona, San Angelo, Childress and Harlingen.

As of 1 December 2009, DPS has reorganized their radio unit numbers. See the Region Map below to see if your closest Communication Centers might be handling different Regions. Expect a description of the reorganization soon. For a discussion of this unit re-numbering see here.

Within the past few years DPS has migrated all of its radio systems to a conventional P25 digital protocol, which is capable of linking any Comm Center in the state to any other by VoIP, essentially giving any trooper the ability to talk to any other, statewide. DPS also has networked 5 facilities into the Harris County Regional Radio System (Texas SCIP p. 28) and two facilities into the City of Austin/Travis County Regional Radio System (Texas SCIP p. 28).

The SCIP has stated, on page 28, that DPS "will migrate toward a statewide hybrid trunked radio system utilizing 700MHz where feasible," accessible by all state agencies. The THP Strategic Outlook from the DPS website, also shows that this is the current plan, on page 44.

 DPS uses linked repeaters and base stations at many Comm Centers. When dispatchers 
transmit, they may be broadcasting over many linked sites at once, while the
trooper is only being broadcasted on their local site. This limits a receiver to hear
only the dispatch side of conversations at times. DPS also uses half-duplex on their
base stations at times. In this case, the trooper will broadcast on a "Mobile to
Base" frequency, while dispatch listens on this frequency. To respond dispatch
transmits on a "Base to Mobile" frequency, while the trooper listens on that same
frequency. This may also cause a receiver to only hear the dispatch side, since
usually the dispatcher is broadcasting from a tall tower, relative to the trooper
broadcasting from ground level. Reports have indicated that in the future more
Base outputs will be rebroadcasting the "Mobile to Base" side of the conversation
which has been noted on San Antonio's Base B1 recently. See below for a "working"
list of linked sites.


The Department of Public Safety is comprised of 8 Divisions:

  • Administration
  • Criminal Law Enforcement
  • Director's Staff
  • Texas Division of Emergency Management
  • Driver License
  • Public Safety Commission
  • Texas Highway Patrol
    • Commercial Vehicle Enforcement
    • Communications
  • Texas Rangers

Criminal Law Enforcement

Texas DPS Criminal Law Enforcement Seal

The CLE division consists of 1,239 personnel, including 625 commissioned officers and 614 support personnel.CLE is split into 5 units:

  • Criminal Intelligence Service
  • Motor Vehicle Theft Service
  • Narcotics Service
  • Bureau of Information Analysis
  • Crime Laboratory Service

The CLE Chief also oversees the DPS SWAT team which is comprised of 20 commissioned officers from all DPS services.


Texas Division of Emergency Management

Texas Division of Emergency Management Homepage
Texas Division of Emergency Management

The Division of Emergency Management is the statewide commssion responsible for disaster preparedness. They report directly to the Governor of the State of Texas. They are the state agency responsible for coordinating the Radio Amateur Civil Emergency Service (RACES) and homeland security preparedness drills.

The DEM has split the state into disaster districts and sub-districts. That map is available here.

Texas Highway Patrol

Otherwise known as "troopers" or "THP," the Highway Patrol is the most visible division of DPS, tasked with enforcing traffic laws on Texas highways.

Commercial Vehicle Enforcement (CVE)

The CVE Unit of THP is the enforcement unit of commercial vehicle traffic, ensuring all weight/size regulations are followed, ensuring compliance with the Motor Carrier Safety Act. They also ensure hazardous material placarding regulations are followed, as well as commercial vehicle registration enforcement. There are 41 CVE Offices throughout the state, including 2 at El Paso's Bridge of the America's POE and the Ysleta POE.


There are 32 Communications facilities throughout the state as well as one mobile unit, the Communications Emergency Operations Team, which is supported by Command One, a 30 ft. mobile communications trailer. See the linked press release above, for a list of Comm Centers that will be closing, reducing the number down to 22.

Texas Rangers

Texas Ranger Crest

The Rangers are famed as the oldest law enforcement agency in the country with statewide jurisdiction. Currently, there are 144 commissioned officers, by state congressional act, and they are split into 7 troops "A-G."

Recently there have been signs that the Rangers are reorganizing and downsizing to 6 troops.


Click on the desired image to enlarge

Ten Codes

In October, 2015 DPS reportedly switched to plain language and dropped the use of 10-codes.

DPS Ten Codes
10-1Signal Weak10-42Ending Tour Of Duty
10-2Signal Good10-43Request Criminal History
10-3Stop Transmitting10-44Permitted to Carry a Handgun
10-4Affirmative (OK)10-45Operating Authority
10-5Relay To _____10-46Motorist Assist
10-6Busy10-47Abandoned Vehicle
10-7Out Of Service10-48Road Hazard
10-8In Service10-49Impoundment List
10-9Say Again (Repeat)10-50Traffic Accident (Specify Type)
10-11_____ On Duty10-52Ambulance
10-12Stand By (Stop)10-54Livestock in roadway
10-13Existing Conditions-Road/Weather10-55Intoxicated Motorist
10-14Message / Information10-56Intoxicated Pedestrian
10-15Message Delivered10-59Escort
10-16Reply To Message10-60Unit in Vicinity
10-17En Route (To)10-66Reserved
10-18Urgent10-70Assisting Unit
10-19(In) Contact10-71Officer Needs Assistance
10-20Location10-72Check Welfare/Safety Of Officer (Unit) _____ At ______ Location
10-21Call _____ By Phone10-73Advise Status / OK?
10-22Disregard10-74Road Block
10-23Arrived At Scene10-75Deployment of Stinger Spikes
10-24Assignment Completed10-77Registered Sex Offender
10-25Report To (Meet)10-79Request Justice of Peace/Coroner
10-26Estimated Time Of Arrival10-80In Pursuit
10-27License / Permit Information10-81Breathalyzer Assistance Needed
10-28Ownership Information10-85Building/Office Access Requested
10-29Records Check (Wanted)10-86Officer/Operator On Duty
10-30Danger / Caution10-89Bomb Threat
10-31Pick Up10-90Alarm-Fire/Security (Specify)
10-32____ Units Needed10-91Prisoner Transfer
10-33Help (Emergency)10-92Suspicious Activity
10-34Correct Time10-93Disturbance
10-35Crime in Progress10-94Secure Radio for Confidential Traffic
10-36Reserved10-95Prisoner/Subject In Custody
10-37Reserved10-96Mental Subject
10-38Vehicle (Traffic) Stop10-97Known Offender
10-39Permit/Oversize/Overwidth Check10-98Criminal History Indicated
10-40Subject Detained, Expedite10-99Wanted/Stolen Indicated
10-41Beginning Tour Of Duty

Unidentified/Unconfirmed Frequencies

The following are not listed in the database. If you can confirm any of them please submit the information and remove them from this list.

Frequency/(Input) Type Tone/NAC - Description
155.4450 M 162 NAC - Mobile 1? (talkaround) (referred to as "B", "2" or "Mobile" in Wichita Falls area)
155.4600 M 162 NAC - Mobile 2? (talkaround)
159.2175 M 162 NAC - Mobile 3? (talkaround)
156.2100 M ? NAC - CVE? (had 162.2 PL before digital)
158.9100 M ? NAC - CLE? (had 162.2 PL before digital)
159.0750 M 162 NAC - CLE?
159.2100/154.6650 RM 162 NAC - Repeater A?
159.2175/154.6725 RM 162 NAC - Repeater B?
155.5125/154.8450 RM ? NAC - Angleton rpt (Brazoria Co.) (Frequency changed 07/2016. Was 155.6850/154.8450)
159.2100/154.6650 RM ? NAC - Bay City repeater (Matagorda County)
159.2100/154.6650 RM ? NAC - Falfurrias repeater (Brooks County)
159.2175/154.6725 RM ? NAC - Junction repeater (Kimble County) (changed location and frequency 04/2016)
155.4600/154.6800 RM ? NAC - Texas City repeater (Galveston County)

The following are listed on an attachment to an application for the 700 MHz State License WPTZ776.

Frequency/(Input) Type Tone/NAC - Description
769.18125/799.18125 ? ? - DPS SWAT (Maintenance) Statewide
774.81875/804.81875 ? ? - DPS SWAT (Maintenance) Statewide
769.21875/799.21875 ? ? - DPS Border Ops reserved
769.65625/799.65625 ? ? - DPS Border Ops reserved
769.71875/799.71875 ? ? - DPS Border Ops reserved
769.96875/799.96875 ? ? - DPS Border Ops reserved
770.21875/800.21875 ? ? - DPS Border Ops reserved
770.71875/800.71875 ? ? - DPS Border Ops reserved
769.19375/799.19375 ? ? - DPS Border Ops Roma (Starr County) *
769.43125/799.43125 ? ? - DPS Border Ops Roma (Starr County) *
769.66875/799.66875 ? ? - DPS Border Ops Roma (Starr County) *
769.93125/799.93125 ? ? - DPS Border Ops Roma (Starr County) *
770.18125/800.18125 ? ? - DPS Border Ops Roma (Starr County) *
770.65625/800.65625 ? ? - DPS Border Ops Roma (Starr County) *
770.19375/800.19375 ? ? - DPS reserved
770.65625/800.65625 ? ? - DPS reserved
770.94375/800.94375 ? ? - DPS reserved
773.28125/803.28125 ? ? - DPS Austin-Capitol
773.56875/803.56875 ? ? - DPS Austin-Capitol
774.03125/804.03125 ? ? - DPS Austin-Capitol
774.31875/804.31875 ? ? - DPS Austin-Capitol
774.78125/804.78125 ? ? - DPS Austin-Capitol
* Possibly GATRRS or LRGVRRS trunked system site which has not been submitted to the database.

Statewide FCC Licenses

HF Temporary Base, Mobile

VHF Temporary Base, Temporary Repeater, Mobile

VHF LoJack

UHF Surveillance Robot

700 MHz State License

4.9 GHz Temporary Fixed, Mobile

Microwave Temporary Mobile


See Common/Shared (TX)

Old Channel Plans

Low Band

  • The VHF low band system was used from 1950 to the late 1970s.
  • It is not known if all radios had channel C or what it was used for. Please correct this if you know.
42.900042.7400BMCSQCH ADispatchFM
42.9000MCSQCH BTalkaroundFM
42.8400BMCSQCH CUnknown useFM

High Band

  • Around 1975 to 1978 the DPS switched to VHF high band. This is the original channel plan.
  • 154.6650 and 159.2100 were often used for point-to-point links to 155.4600/154.6800 remote sites.
155.4600154.6800BM162.2 PLCH 1"Primary A" dispatchFM
155.4600M162.2 PLCH 2TalkaroundFM
154.9500MCSQCH 3Intercity mobileFM
155.3700154.9500BMCSQCH 4Intercity baseFM
155.5050M162.2 PLCH 5CLE talkaroundFM
155.5050154.9200RM162.2 PLCH 6CLE repeaterFM
155.4450M162.2 PLCH 7TalkaroundFM
155.4450154.6950BM162.2 PLCH 8"Primary B" dispatchFM
  • In the late 1980s-1990s the original 8 channel GE mobile radios were replaced and additional repeater channels were added.
159.2100M162.2 PLCH 9TalkaroundFM
159.2100154.6650RM162.2 PLCH 10RepeaterFM
159.2100154.6650RM107.2 PLCH 11RepeaterFM
159.2100154.6650RM110.9 PLCH 12RepeaterFM
159.2100154.6650RM118.8 PLCH 13RepeaterFM
159.2100154.6650RM123.0 PLCH 14RepeaterFM
159.2100154.6650RM127.3 PLCH 15RepeaterFM
159.2100154.6650RM136.5 PLCH 16RepeaterFM
159.2100154.6650RM141.3 PLCH 17RepeaterFM
159.2100154.6650RM146.2 PLCH 18RepeaterFM
159.2100154.6650RM151.4 PLCH 19RepeaterFM
  • Some additional repeaters numbered 20-32 were used in certain areas.

Linked Sites

  • Notice that these links are subject to change (reducing or expanding the number) at any time, and is handled at the Communication Center.

Region 1

Communications CenterSiteLocation
Sulphur SpringsBase BSulphur Springs
Rptr 10Greenville
Rptr 19Paris
TexarkanaBase CTexarkana
Rptr 14Marshall
TylerBase ATyler
Rptr 01Canton
Mineral WellsBase A Whitt (main)
Base AMineral Wells (backup - seldom used)
Rptr 13Aledo
Rptr 16Glen Rose

Region 2

Communications CenterSiteLocation
ConroeBase CConroe
Rptr 18Huntsville
HoustonBase BHouston
Rptr 01Huffman
Texas CityRptr 20Texas City
Rptr 19Santa Fe

Region 5

Communications CenterSiteLocation
Wichita FallsBase BWichita Falls (backup)
Base BWindthorst (main)
Rptr 09Throckmorton
Rptr 20Decatur
Rptr 03Tolbert (Vernon)

Region 6

Communications CenterSiteLocation
San AntonioBase CSan Antonio
Rptr 13D'Hanis
Base AKerrville
Rptr 20New Braunfels
Rptr 15Stonewall

Related Links

Return to DB page: Texas Department of Public Safety (DPS)
Return to Wiki Page: Texas (US)

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