TETRA Digital Trunking System :Not only provides multi-group dispatching capabilities but also offers short data messaging services, packet data services, and digital full-duplex mobile telephony. It enables wireless communication between control center dispatchers and mobile users such as train drivers and operational staff. Designed to achieve reliable and efficient wireless communication for train dispatching, the system is built upon TETRA trunking technology and implements functions such as train number-based calling and train group-based calling, meeting users' needs for simple, fast, and secure communication.

The digital trunking wireless communication system deploys base stations at underground and above-ground stations. Indoor coverage systems are used in station halls and platforms of underground stations to ensure adequate signal strength, while leaky coaxial cables are employed in tunnels to extend coverage. This ensures comprehensive wireless coverage across all stations, line sections, and depots/parking yards.

TETRA is one of the earliest, most widely adopted, and most mature digital trunking communication technologies in the rail transit sector. Our company possesses extensive experience in product development and project delivery, offering a complete TETRA digital trunking system solution. This includes products such as digital trunking Handheld Terminal, Cab Radio, Desktop Radio, DC, CAD, AVR, and NMS.