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Difference between revisions of "Texas Common/Shared (TX)"

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!Frequency !!Input !!License !!Type !!Tone !!Alpha Tag !!Description !!Mode
 
!Frequency !!Input !!License !!Type !!Tone !!Alpha Tag !!Description !!Mode
 
|-
 
|-
|'''154.95000'''||||{{Callsign|WPYI930}}||BM||156.7||'''TXCALL1D'''||Mobile-to-Mobile calling channel||FMN
+
|'''154.95000'''||||'''{{Callsign|WPYI930}}'''||'''BM'''||'''156.7'''||'''TXCALL1D'''||'''Mobile-to-Mobile calling channel'''||'''FMN'''
 
|-
 
|-
|'''155.37000'''||||{{Callsign|WPYI930}}||BM||156.7||'''TXCALL2D'''||Primary: Calling channel for state/federal aircraft to/from a base; Secondary: VCALL10 backup||FMN
+
|'''155.37000'''||||'''{{Callsign|WPYI930}}'''||'''BM'''||'''156.7'''||'''TXCALL2D'''||'''Primary: Calling channel for state/federal aircraft to/from a base; Secondary: VCALL10 backup'''||'''FMN'''
 
|-
 
|-
|'''155.75250'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VCALL10'''||Calling||FMN
+
|'''155.75250'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VCALL10'''||'''Calling'''||'''FMN'''
 
|-
 
|-
|'''151.13750'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VTAC11'''||Tactical||FMN
+
|'''151.13750'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VTAC11'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
|'''154.45250'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VTAC12'''||Tactical||FMN
+
|'''154.45250'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VTAC12'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
|'''158.73750'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VTAC13'''||Tactical||FMN
+
|'''158.73750'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VTAC13'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
|'''159.47250'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VTAC14'''||Tactical||FMN
+
|'''159.47250'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VTAC14'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
 
|161.85000||157.25000|| ||RM||CSQ||VTAC17||Tactical Repeater (only availble in certain counties)||FMN
 
|161.85000||157.25000|| ||RM||CSQ||VTAC17||Tactical Repeater (only availble in certain counties)||FMN
Line 39: Line 39:
 
|161.85000||||||BM||CSQ||VTAC17D||Tactical (only availble in certain counties)||FMN
 
|161.85000||||||BM||CSQ||VTAC17D||Tactical (only availble in certain counties)||FMN
 
|-
 
|-
|'''154.28000'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VFIRE21'''||Tactical||FMN
+
|'''154.28000'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VFIRE21'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
|'''154.26500'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VFIRE22'''||Tactical||FMN
+
|'''154.26500'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VFIRE22'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
|'''154.29500'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VFIRE23'''||Tactical||FMN
+
|'''154.29500'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VFIRE23'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
 
|154.27250||||{{Callsign|WQBC290}}||BM||CSQ||VFIRE24||Tactical||FMN
 
|154.27250||||{{Callsign|WQBC290}}||BM||CSQ||VFIRE24||Tactical||FMN
Line 49: Line 49:
 
|154.28750||||{{Callsign|WQBC290}}||BM||CSQ||VFIRE25||Tactical||FMN
 
|154.28750||||{{Callsign|WQBC290}}||BM||CSQ||VFIRE25||Tactical||FMN
 
|-
 
|-
|'''154.30250'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VFIRE26'''||Air-to-Ground with state/federal aircraft ONLY||FMN
+
|'''154.30250'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VFIRE26'''||'''Air-to-Ground with state/federal aircraft ONLY'''||'''FMN'''
 
|-
 
|-
|'''155.34000'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VMED28'''||Tactical and Air-to-Ground||FMN
+
|'''155.34000'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VMED28'''||'''Tactical and Air-to-Ground'''||'''FMN'''
 
|-
 
|-
|'''155.34750'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VMED29'''||Tactical||FMN
+
|'''155.34750'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VMED29'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
|'''155.47500'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VLAW31'''||Tactical||FMN
+
|'''155.47500'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VLAW31'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
|'''155.48250'''||||{{Callsign|WQBC290}}||BM||CSQ||'''VLAW32'''||Tactical||FMN
+
|'''155.48250'''||||'''{{Callsign|WQBC290}}'''||'''BM'''||'''CSQ'''||'''VLAW32'''||'''Tactical'''||'''FMN'''
 
|-
 
|-
 
|159.47250||151.13750||{{Callsign|WQBC290}}||RM||CSQ||VTAC33||Tactical Repeater (Secondary 1)||FMN
 
|159.47250||151.13750||{{Callsign|WQBC290}}||RM||CSQ||VTAC33||Tactical Repeater (Secondary 1)||FMN
Line 65: Line 65:
 
|159.47250||158.73750||{{Callsign|WQBC290}}||RM||CSQ||VTAC35||Tactical Repeater (Secondary 3)||FMN
 
|159.47250||158.73750||{{Callsign|WQBC290}}||RM||CSQ||VTAC35||Tactical Repeater (Secondary 3)||FMN
 
|-
 
|-
|'''151.13750'''||'''159.47250'''||{{Callsign|WQBC290}}||RM||CSQ||'''VTAC36'''||Tactical Repeater (Preferred 1)||FMN
+
|'''151.13750'''||'''159.47250'''||'''{{Callsign|WQBC290}}'''||'''RM'''||'''CSQ'''||'''VTAC36'''||'''Tactical Repeater (Preferred 1)'''||'''FMN'''
 
|-
 
|-
 
|154.45250||158.73750||{{Callsign|WQBC290}}||RM||CSQ||VTAC37||Tactical Repeater (Preferred 2)||FMN
 
|154.45250||158.73750||{{Callsign|WQBC290}}||RM||CSQ||VTAC37||Tactical Repeater (Preferred 2)||FMN

Revision as of 20:15, 22 July 2015

Texas Statewide Communications Interoperability Coordinator

Current Channel Plan (May 25, 2015)

The national interoperability channels were removed from the Texas Common/Shared database page leaving the Texas-only interoperability channels. The tables below contain all TSICP frequencies.
  • The low band channels LLAW1-LFIRE4 are not part of the TSICP.

Scanner users should program the frequencies below with no tone and the mode set to receive both analog and digital transmissions to reduce the possibility of missing communications.

VHF High Band

  • All radios should transmit and receive PL 156.7 on TXCALL1D and TXCALL2D.
  • All radios should transmit PL 156.7 and receive carrier squelch (CSQ or no tone) on VCALL10 - VLAW32 unless PL decode is necessary due to interference.
  • End user radios should transmit PL 136.5 and receive carrier squelch (CSQ or no tone) on VTAC33 - VTAC38. Repeaters should transmit CSQ and receive PL 136.5.
  • VTAC17 and VTAC17D are VHF marine channels and their use is limited to certain counties specified in the TSICP and NIFOG.
  • Bold font indicates recommended 16 channel short list.
Frequency Input License Type Tone Alpha Tag Description Mode
154.95000 WPYI930 BM 156.7 TXCALL1D Mobile-to-Mobile calling channel FMN
155.37000 WPYI930 BM 156.7 TXCALL2D Primary: Calling channel for state/federal aircraft to/from a base; Secondary: VCALL10 backup FMN
155.75250 WQBC290 BM CSQ VCALL10 Calling FMN
151.13750 WQBC290 BM CSQ VTAC11 Tactical FMN
154.45250 WQBC290 BM CSQ VTAC12 Tactical FMN
158.73750 WQBC290 BM CSQ VTAC13 Tactical FMN
159.47250 WQBC290 BM CSQ VTAC14 Tactical FMN
161.85000 157.25000 RM CSQ VTAC17 Tactical Repeater (only availble in certain counties) FMN
161.85000 BM CSQ VTAC17D Tactical (only availble in certain counties) FMN
154.28000 WQBC290 BM CSQ VFIRE21 Tactical FMN
154.26500 WQBC290 BM CSQ VFIRE22 Tactical FMN
154.29500 WQBC290 BM CSQ VFIRE23 Tactical FMN
154.27250 WQBC290 BM CSQ VFIRE24 Tactical FMN
154.28750 WQBC290 BM CSQ VFIRE25 Tactical FMN
154.30250 WQBC290 BM CSQ VFIRE26 Air-to-Ground with state/federal aircraft ONLY FMN
155.34000 WQBC290 BM CSQ VMED28 Tactical and Air-to-Ground FMN
155.34750 WQBC290 BM CSQ VMED29 Tactical FMN
155.47500 WQBC290 BM CSQ VLAW31 Tactical FMN
155.48250 WQBC290 BM CSQ VLAW32 Tactical FMN
159.47250 151.13750 WQBC290 RM CSQ VTAC33 Tactical Repeater (Secondary 1) FMN
158.73750 154.45250 WQBC290 RM CSQ VTAC34 Tactical Repeater (Secondary 2) FMN
159.47250 158.73750 WQBC290 RM CSQ VTAC35 Tactical Repeater (Secondary 3) FMN
151.13750 159.47250 WQBC290 RM CSQ VTAC36 Tactical Repeater (Preferred 1) FMN
154.45250 158.73750 WQBC290 RM CSQ VTAC37 Tactical Repeater (Preferred 2) FMN
158.73750 159.47250 WQBC290 RM CSQ VTAC38 Tactical Repeater (Preferred 3) FMN

UHF

  • All radios should transmit PL 156.7 and receive carrier squelch (CSQ or no tone) unless PL decode is necessary due to interference.
Frequency Input License Type Tone Alpha Tag Description Mode
453.21250 458.21250 WQBC290 RM CSQ UCALL40 Calling – Repeater FMN
453.21250 WQBC290 BM CSQ UCALL40D Calling – Direct FMN
453.46250 458.46250 WQBC290 RM CSQ UTAC41 Tactical – Repeater FMN
453.21250 WQBC290 BM CSQ UTAC41D Tactical – Direct FMN
453.71250 458.71250 WQBC290 RM CSQ UTAC42 Tactical – Repeater FMN
453.21250 WQBC290 BM CSQ UTAC42D Tactical – Direct FMN
453.86250 458.86250 WQBC290 RM CSQ UTAC43 Tactical – Repeater FMN
453.21250 WQBC290 BM CSQ UTAC43D Tactical – Direct FMN

700 MHz

  • FCC license WPTZ776
  • All radios should transmit and receive NAC $293.
  • Bold font indicates recommended 16 channel short list.
  • Asterisk (*) in Description column indicates channels that should not be used within 70 miles of the Mexican border.
Frequency Input License Type NAC Alpha Tag Description Mode
769.24375 799.24375 RM 293 7CALL50 Calling – Repeater P25
769.24375 BM 293 7CALL50D Calling – Direct P25
769.14375 799.14375 RM 293 7TAC51 Tactical – Repeater P25
769.14375 BM 293 7TAC51D Tactical – Direct P25
769.64375 799.64375 RM 293 7TAC52 Tactical – Repeater P25
769.64375 BM 293 7TAC52D Tactical – Direct P25
770.14375 800.14375 RM 293 7TAC53 Tactical – Repeater P25
770.14375 BM 293 7TAC53D Tactical – Direct P25
770.64375 800.64375 RM 293 7TAC54 Tactical – Repeater P25
770.64375 BM 293 7TAC54D Tactical – Direct P25
769.74375 799.74375 RM 293 7TAC55 Tactical – Repeater P25
769.74375 BM 293 7TAC55D Tactical – Direct P25
770.24375 800.24375 RM 293 7TAC56 Tactical – Repeater P25
770.24375 BM 293 7TAC56D Tactical – Direct P25
770.99375 800.99375 RM 293 7GTAC57 Tactical – Repeater P25
770.99375 BM 293 7GTAC57D Tactical – Direct P25
770.89375 800.89375 RM 293 7MOB59 Tactical – Repeater P25
770.89375 BM 293 7MOB59D Tactical – Direct P25
770.39375 800.39375 RM 293 7LAW61 Tactical – Repeater P25
770.39375 BM 293 7LAW61D Tactical – Direct P25
770.49375 800.49375 RM 293 7LAW62 Tactical – Repeater P25
770.49375 BM 293 7LAW62D Tactical – Direct P25
769.89375 799.89375 RM 293 7FIRE63 Tactical – Repeater P25
769.89375 BM 293 7FIRE63D Tactical – Direct P25
769.99375 799.99375 RM 293 7FIRE64 Tactical – Repeater P25
769.99375 BM 293 7FIRE64D Tactical – Direct P25
769.39375 799.39375 RM 293 7MED65 Tactical – Repeater P25
769.39375 BM 293 7MED65D Tactical – Direct P25
769.49375 799.49375 RM 293 7MED66 Tactical – Repeater P25
769.49375 BM 293 7MED66D Tactical – Direct P25
770.74375 800.74375 RM 293 7DATA69 Tactical – Repeater P25
770.74375 BM 293 7DATA69D Tactical – Direct P25
773.25625 803.25625 RM 293 7CALL70 Calling – Repeater P25
773.25625 BM 293 7CALL70D Calling – Direct P25
773.10625 803.10625 RM 293 7TAC71 Tactical – Repeater * P25
773.10625 BM 293 7TAC71D Tactical – Direct P25
773.60625 803.60625 RM 293 7TAC72 Tactical – Repeater * P25
773.60625 BM 293 7TAC72D Tactical – Direct P25
774.10625 804.10625 RM 293 7TAC73 Tactical – Repeater * P25
774.10625 BM 293 7TAC73D Tactical – Direct P25
774.60625 804.60625 RM 293 7TAC74 Tactical – Repeater * P25
774.60625 BM 293 7TAC74D Tactical – Direct P25
773.75625 803.75625 RM 293 7TAC75 Tactical – Repeater * P25
773.75625 BM 293 7TAC75D Tactical – Direct P25
774.25625 804.25625 RM 293 7TAC76 Tactical – Repeater * P25
774.25625 BM 293 7TAC76D Tactical – Direct P25
774.85625 804.85625 RM 293 7GTAC77 Tactical – Repeater * P25
774.85625 BM 293 7GTAC77D Tactical – Direct P25
774.50625 804.50625 RM 293 7MOB79 Tactical – Repeater * P25
774.50625 BM 293 7MOB79D Tactical – Direct P25
774.00625 804.00625 RM 293 7LAW81 Tactical – Repeater * P25
774.00625 BM 293 7LAW81D Tactical – Direct P25
774.35625 804.35625 RM 293 7LAW82 Tactical – Repeater * P25
774.35625 BM 293 7LAW82D Tactical – Direct P25
773.50625 803.50625 RM 293 7FIRE83 Tactical – Repeater * P25
773.50625 BM 293 7FIRE83D Tactical – Direct P25
773.85625 803.85625 RM 293 7FIRE84 Tactical – Repeater * P25
773.85625 BM 293 7FIRE84D Tactical – Direct P25
773.00625 803.00625 RM 293 7MED86 Tactical – Repeater * P25
773.00625 BM 293 7MED86D Tactical – Direct P25
773.35625 803.35625 RM 293 7MED87 Tactical – Repeater * P25
773.35625 BM 293 7MED87D Tactical – Direct P25
774.75625 804.75625 RM 293 7DATA89 Tactical – Repeater * P25
774.75625 BM 293 7DATA89D Tactical – Direct P25

800 MHz

  • All radios should transmit PL 156.7 and receive carrier squelch (CSQ or no tone) unless PL decode is necessary due to interference.
Frequency Input License Type Tone Alpha Tag Description Mode
851.01250 806.01250 WPGV572 RM CSQ 8CALL90 Calling – Repeater FM
851.01250 WPGV572 BM CSQ 8CALL90D Calling – Direct FM
851.51250 806.51250 WPGV572 RM CSQ 8TAC91 Tactical – Repeater FM
851.51250 WPGV572 BM CSQ 8TAC91D Tactical – Direct FM
852.01250 807.01250 WPGV572 RM CSQ 8TAC92 Tactical – Repeater FM
852.01250 WPGV572 BM CSQ 8TAC92D Tactical – Direct FM
852.51250 807.51250 WPGV572 RM CSQ 8TAC93 Tactical – Repeater FM
852.51250 WPGV572 BM CSQ 8TAC93D Tactical – Direct FM
853.01250 808.01250 WPGV572 RM CSQ 8TAC94 Tactical – Repeater FM
853.01250 WPGV572 BM CSQ 8TAC94D Tactical – Direct FM
851.55000 WQDW771 M CSQ 8TAC95D Incident Control – Direct FM
853.05000 WQDW771 M CSQ 8TAC96D Incident Control – Direct FM
853.35000 WQDW771 M CSQ 8TAC97D Incident Controll – Direct FM
866.01250 821.01250 WPGV572 RM CSQ ICALL/8CALL Calling – Repeater (Pre-rebanding - border area only) FM
866.01250 WPGV572 BM CSQ ICALLD/8CALLD Calling – Direct (Pre-rebanding - border area only) FM
866.51250 821.51250 WPGV572 RM CSQ ITAC1/8TAC1 Tactical – Repeater (Pre-rebanding - border area only) FM
866.51250 WPGV572 BM CSQ ITAC1D/8TAC1D Tactical – Direct (Pre-rebanding - border area only) FM
867.01250 822.01250 WPGV572 RM CSQ ITAC2/8TAC2 Tactical – Repeater (Pre-rebanding - border area only) FM
867.01250 WPGV572 BM CSQ ITAC2D/8TAC2D Tactical – Direct (Pre-rebanding border area only) FM
867.51250 822.51250 WPGV572 RM CSQ ITAC3/8TAC3 Tactical – Repeater (Pre-rebanding - border area only) FM
867.51250 WPGV572 BM CSQ ITAC3D/8TAC3D Tactical – Direct (Pre-rebanding - border area only) FM
868.01250 823.01250 WPGV572 RM CSQ ITAC4/8TAC4 Tactical – Repeater (Pre-rebanding - border area only) FM
868.01250 WPGV572 BM CSQ ITAC4D/TAC4D Tactical – Direct (Pre-rebanding - border area only) FM

Related Links

Regional Councils of Government

The following are radio interoperability related pages found on some of the regional councils' homeland security or public safety web sites.

Future Plans

In an effort to consolidate information about the implementation of future radio systems, specific to certain areas, this section will be open for revision, citing information from documents linked above and external sources, in order to better guide discussion.

When posting information, please relate it to the specific area (City, County, Multi-County or Council of Gov't), and reference where the information was found.

Fort Worth Regional Radio System Master Plan

Eventually the current trunked systems in Fort Worth, Northeast Tarrant, Arlington, Grand Prairie and Mansfield are planned to become part of this system. It will cover most of Tarrant and Johnson Counties and be interoperable with the NCTCOG P25 Overlay and City of Dallas P25 systems.

Harris County Regional Radio System, HCRRS

HCRRS is implementing a Motorola SmartZone 7.X, P25 compliant 700/800 MHz wide area trunking system. The Disaster Recovery Site in Conroe, Texas, serves as the Emergency Operations Center. This trunking system will serve a 13 county area, within FCC's Region 51 planning zone. These counties are: Austin, Brazoria, Chambers, Colorado, Fort Bend, Galveston, Harris, Liberty, Matagorda, Montgomery, Walker, Waller, & Wharton. The implementation is broken down in to four phases, outlined below:

  • Phase 1- Add microwave link radio connectivity to all existing SmartZone 4.1 Sites and ASTRO P25 Repeater Sites.
  • Phase 2- Implementation in Counties:
    • Brazoria County (Multicast/Simulcast)
    • Chambers County (Multicast)
    • Fort Bend County (Simulcast)
    • Galveston County (Multicast/Simulcast)
    • Harris County (Multicast/Simulcast)
    • Waller County (Multicast)
  • Phase 3- Implementation in Counties:
    • Liberty County (Multicast)
    • Montgomery County (Simulcast)
    • Walker County (Multicast)
  • Phase 4- Implementation in Counties:
    • Austin County (Multicast)
    • Colorado County (Multicast)
    • Matagorda County (Multicast)
    • Wharton County (Multicast)

Houston Urban Area Security Initiative

According to Texas PSIC Grant Awards as of September 30, 2008, (page 4), Houston will be migrating to a 700/800MHz P25 trunking system, incorporating 10 sites with repeaters and simulcast equipment. This will support full interoprability with Harris County Regional Radio System.

San Antonio Urban Area Security Initiative

According to the AACOG grant worksheets linked above, San Antonio will be implementing a P25 700MHz overlay, capable of interoperability with Texas DPS, the future 700MHz I-37 Corridor Project to Corpus Christi, the future 700MHz I-35S Corridor Project to Laredo, the future 700MHz LCRA overlay and the Live Oak P25 800MHz trunked system. By interconnecting with LCRA through a 700MHz overlay, San Antonio plans to achieve interoprability with Austin, and through Austin, HCRRS and ETMC.

Old Channel Plans

2003 to 2012

Texas Immediate Interoperability Plan Wideband Channels (2003-2012)
Frequency Type Tone Name Description Mode
154.9500 M CSQ TEXAS LAW 1 Public Safety Tactical (Mobile-to-Mobile) FM
154.9500 M 127.3 PL TEXAS LAW 2 Public Safety Calling (Mobile-to-Base, tone on mobile tx only) FM
155.3700 B CSQ TEXAS LAW 2 Public Safety Calling (Base-to-Mobile, Base-to-Base) FM
155.4750 BM 127.3 PL TEXAS LAW 3 Public Safety Tactical FM
154.2800 BM 127.3 PL TEXAS FIRE 1 Public Safety Tactical FM
154.2650 BM 127.3 PL TEXAS FIRE 2 Public Safety Tactical FM
154.2950 BM 127.3 PL TEXAS FIRE 3 Public Safety Tactical FM
155.3400 BM 127.3 PL TEXAS MED 1 Public Safety Tactical FM
151.3850 BM 127.3 PL TEXAS AIR 2 Public Safety Air-to-Ground with state and federal aircraft only FM
  • Due to the FCC Narrowbanding order, these channels cannot be used after 12/31/2012.
  • In 2004 the national narrowband VHF, narrowband UHF, 700 MHz and 800 MHz interoperability channels were added to the original plan.
  • In 2009-2010 the national interoperability channel names were changed to reflect the APCO/NPSTC standard channel names.

Before 2003

Intercity and Mutual Aid Channels
Frequency Type Tone Name Description Mode
154.9500 M CSQ INTERCITY MOBILE (CH 3) Law Enforcement Tactical (Mobile-to-Mobile) FM
154.9500 M CSQ INTERCITY BASE (CH 4) Law Enforcement Mobile-to-Base FM
155.3700 B CSQ INTERCITY BASE (CH 4) Law Enforcement Base-to-Mobile, Base-to-Base FM
155.4750 M CSQ NATIONAL (USA) National Law Enforcement Mutual Aid (rarely used in Texas) FM
154.2800 BM CSQ FIRE INTERCITY National Fire Mutual Aid FM
155.3400 BM CSQ HEAR National Ambulance-to-Hospital FM
  • Typically until the late 1990's or so, the first four (or only) channels in most law enforcement agency radios were configured as follows:
    • Channel 1 - Primary dispatch repeater
    • Channel 2 - Talkaround or alternate repeater
    • Channel 3 - Intercity Mobile
    • Channel 4 - Intercity Base
  • DTMF selective calling was used by law enforcement base stations in some areas on 155.3700.
  • DTMF or rotary pulse dial selective calling was used by ambulances and hospitals in some areas on 155.3400.



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