Why TETRA meets the requirements
Researching technology to replace the existing radio system, they discovered TETRA technology that was just becoming available in the US. This technology had been in use in Europe for over 10 years as the standard for public safety critical communications systems. TETRA provided as a core part of the radio system excellent voice quality, text messaging, data services, and AVL services. TETRA provided enhanced redundancy and reliability needed for a quality emergency communications system. TETRA also provided the ability to share the radio system with other users without compromising security or privacy of each user. This technology could not only significantly enhance communications for Diverse Power, but for the communities within its service area.
Diverse Power went through an extensive process of evaluating many different technologies and providers before selecting their technology partner, PowerTrunk.
Once selected, PowerTrunk provided complete system design and commissioning services. The combination of the PowerTrunk project implementation team and local partners went to work installing and commissioning the equipment. Local customization of the services provided a match to the requirements for coverage, redundancy, reliability, and security for each user group. PowerTrunk also provided future capabilities to support broadband technology.
One of the key new features for all the users is the gateway function of the mobile radio. This TETRA-only feature allows a portable radio to talk back through the mobile to the network. For economic reasons, the network is built out as a mobile network, thus portable radios sometimes do not have the power to remain connected to the TETRA network in all areas. The solution is to use the gateway mode in the mobile to allow the portable to talk to the mobile, which is still on the TETRA network in gateway mode, and the portable is passed through to the TETRA network. This extends the coverage of the portables. The portable maintains its own individual ID, GPS location, and emergency function. The dispatcher is able to still see all this information and communicate with the portable as well as the mobile acting as the gateway. This feature enhances the efficiency and safety of all users. This intelligent system provides high level features while keeping the user interface simple and easy to use.
Diverse Power built several radio towers throughout the service area in preparation for the launch of the new TETRA radio system which, combined with an extensive fiber network and radio licensing, enhances employee communications and enables line crews to conveniently communicate with each other, with law enforcement, and with emergency responders during post-storm power outages or other emergencies.