TATRS - Terrestrial Agile Trunked Radio System

Report an outage

About

The Terrestrial Agile Trunked Radio System is a collaboration of Motorola ASTRO site owners using Quantar, STR3000, GTR8000 Standalone, and GTR8000 ESS Based sites. Using georedundant Cores located in Austin and Dallas TATRS maintains high availability for operations critical voice.

The Terrestrial Agile Trunked Radio System cores provide the following services

Full AES256 support
Remote Radio Console access
Remote PTToC access via Motorola Wave 5000
Radio GPS location via Motorola IMW
Motorola Talkgroup text
Phone Interconnect
Project 25 Link Layer Authentication for enhanced security
and more

Coverage

Current Coverage includes the Dallas Fort Worth area, Childress County, and the Austin-Travis area.

Currently sites are being built out to expand coverage to include more of the DFW metroplex, Waco, and Williamson County

Site listing

Note: Map depicts future and current coverage estimations overlayed

Zones

The state of Texas is split into 5 different zones.

These zones are intended to provide single frequency coverage areas and prevent requirements for multiband radios within single geographic locations.

Zone 1 - TX West/South - Low-Capacity VHF Sites

Zone 2 - Dallas-Fort Worth Metro areas will use 800mhz simulcast*

Zone 3 - TX North-East - Low-Capacity VHF Sites

Zone 3M - TX South Metro - Mid-Capacity VHF Sites

Zone 4 - Austin Metro - UHF 450 Sites*

*To provide single-band I-35 Coverage VHF overlays are planned to be installed in Zones 1 and 4. Multiband units in Z1 and Z4 are requested to use Site Preference lists to prevent unnecessary roams to the overlays

Who can use TATRS?

We do not offer airtime sales. As such, access is on a request-by-request basis. We are happy to offer access to nonprofit organizations free of charge.

While TATRS uses the same hardware and protocols as most Public Safety systems on air. We do not support life safety voice or data usage.

Personal usage by CTRS users is also allowed, with all Radio IDs and Most Talkgroup IDs from the DVM-based system being synced onto the Astro system. Do note, as of 6/22/2025, WACN roaming from the DVM-based system to the Astro system is not supported. We are working towards bringing this feature to the network, to allow users to keep their radios on the same channel and roam from their Home DVM Hotspot site to a wide-area Astro or DVM site.