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Greater Austin/Travis Regional Radio System (GATRRS)

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Revision as of 10:41, 1 September 2009 by Russell (talk | contribs) (Added DPS)

System Users

The following agencies use this system:

  • City of Austin
  • Travis County
  • Travis County Fire/EMS Agencies
  • Austin I.S.D.
  • Austin Community College
  • Capital Metro
  • Cities of Jonestown, Manor, Lakeway, Pflugerville, Rollingwood, West Lake Hills
  • Texas Department of Public Safety (DPS)
  • Texas DOT
  • Texas Legislative Council
  • Texas House of Representatives
  • The University of Texas
  • Williamson County
  • Cities of Cedar Park, Georgetown, Leander and Round Rock
  • Agencies in the Middle Rio Grande Valley

System Technical Details

  • 95% coverage for portable radio worn on hip inside a -10 dB building (residential or light commercial structure) throughout City of Austin and Travis County.
  • 95% coverage for portable radio worn on hip inside a -20 dB building located within defined geographical area of Austin.
  • All digital system to reduce monitoring of radio transmissions - Encryption provided to special Law Enforcement talk groups.

Note the mention of designing the system to reduce public monitoring of a public funded public safety system.

Below is a system map of simulcast sites and IR (Intelli-Repeater Sites) making up this system. This map portrays Travis County sites only and does not include Williamson County, the Middle Rio Grande Valley sites or any of the planned expansion counties.

Austin.jpg

This system is implemented as a two layer simulcast system with "intellirepeater" fill-in sites within Austin/Travis County and networked multisite nodes for other counties/areas.

Austin/TC EMS and TCSO function on the countywide layer comprised of 11 towers supporting 23 simultaneous conversations. The City wide layer, primarily east of 620, is comprised of 7 towers supporting 19 simultaneous conversations. Additionally, individual intellirepeater sites serve difficult coverage areas such as Barton Creek and Hamilton Pool. Williamson County joined the system in November 2007 migrating their frequencies and towers implemented as a networked site (site 120). The Middle Rio Grande Valley is also implemented as a networked site. Any unit/talkgroup can appear on any site in this system.

Several counties in Central Texas are planning to join this system forming a wide-area networked system. This includes Bastrop, Caldwell, Fayette and Lee counties. Combining these systems in this fashion will enable communications between any unit/agency from anywhere within the combined coverage area. As these individual counties migrate to P25 digital they will merge with Austin/Travis County system increasing the total coverage area for all users.

Austin PD Patrol Radio Zone/Mode Config

CH A B C D E
1 ADAM SR-1 SO ADAM AISD PD LAW 1
2 BAKER SR-2 SO BAKER AISD N LAW 2
3 CHARLIE SR-3 SO CHARLIE AISD C LAW 3
4 DAVID SR-4 SO DAVID AISD S LAW 4
5 EDWARD SR-5 CONSTABLE UTPD 1 LAW 5
6 FRANK SR-6 RED 4 UTPD 2 ICALL
7 GEORGE SR-7 RED 5 UTPD 3 ICALL NE
8 HENRY SR-8 RED 6 UTEVNT 1 ICALL SE
9 IDA SR-9 RED 7 UTEVNT 2 ICALL SW
10 EVENTS SR-10 RED 8 UTEVNT 3 ICALL NW
11 L & W SR-11 TRAIN 1 PFL A ICALL 1D
12 RAT STEP 1 TRAIN 2 PFL B ICALL 2D
13 CRIT 1 STEP 2 TRAIN 3 PFL CIB ICALL 3D
14 CRIT 1D STEP 3 HOME 1 PFL TAC1 ICALL 4D
15 CRIT 2 MOTORS HOME 2 PFL TAC2 COMMON D
16 CRIT 2D BOOKING HOME WW WESTLAKE EMERGENCY
CH F G H I J
1 INTEROP A BLUE 1 CIB 1 SWAT 1 OCD 1
2 INTEROP B BLUE 2 CIB 2 SWAT 2 OCD 2
3 INTEROP C BLUE 3 CIB 3 SWAT 3 OCD 3
4 INTEROP D BLUE 4 CIB 4 TC SWAT 1 OCD 4
5 INTEROP E BLUE 5 CIB 5 INTEL OCD 5
6 INTEROP F BLUE 6 CIB 6 FUGITIVE OCD 6
7 INTEROP G BLUE 7 CIB 7 BOMB OCD 7
8 INTEROP H BLUE 8 CIB 8 EXEC PROT OCD 8
9 TC OEM BLUE 9 CIB 9 HOME 1 OCD 9
10 TC HAZ BLUE 10 CIB 10 HOME 2 OCD 10
11 AVPD BLUE 11 CIB 11 HOME WW TC NAR
12 AVPD 2 BLUE 12 CIB 12 BLANK DPS NAR
13 AVPD INV BLUE 13 CIB 13 BLANK BLANK
14 LIBRARY BLUE 14 CIB 14 BLANK BLANK
15 FLEET BLUE 15 BLANK BLANK BLANK
16 DYN-RGP BLUE 16 BLANK BLANK BLANK

Austin Fire Department Zones and Talkgroups

Afdradio2.jpg