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Digital TRS

This solution is designed for sectors that require voice and data communications, such as public safety (disaster communications, police, and fire services), railways, subways, airports, and plants. It enables rapid response to emergencies and delivers reliable, stable wireless communication services based on standardized technologies. Drawing on the expertise and know-how of engineers and researchers with extensive experience in wireless network design, deployment, and maintenance, SMEC delivers end-to-end services ranging from RF engineering and design to system supply, deployment, and optimization, as well as dedicated after-sales support to maximize customer satisfaction.

Solution
  • Digital TETRA TRS
    • Switching equipment
    • Base station equipment
    • Terminal equipment
    • Gateway equipment
  • Digital Mobile Radio
    • Tier - I
    • Tier - II
    • Tier - III
Applications
TETRA TRS & DMR Applications
Competitiveness in Digital Wireless Communications
  • Over 20 years of expertise in wired and wireless communications
  • Technical personnel with more than a decade of experience in wireless communications
  • Experienced personnel with a proven track record in public safety, railway, and metro wireless communications projects
  • Patents and R&D capabilities in wireless communication equipment
Specifications
  • Category TETRA TRS Digital Mobile Radio
    Technical standard European Telecommunications Standards Institute (ETSI)) European Telecommunications Standards Institute (ETSI)
    Access method 4-TDMA 2-TDMA
    Channel spacing 25kHz 12.5kHz
    Frequency bands 380 - 400MHz
    430 - 470MHz
    800MHz
    136 - 174MHz
    350 - 400MHz
    400 - 470MHz
    Modulation π/4 DQPSK 4FSK
    Voice coding ACELF SELP
    Security AIE, E2EE AES, E2EE
    Data transmission rate Max. 28.8Kbps Max.9600bps
    Services
    • Group/individual calling
    • Telephone calling
    • Emergency calling
    • 0.3 sec call setup time
    • Dynamic group assignment
    • Max. 40 W output (base station)
    • Priority calling
    • Call intrusion
    • Ambient listening
    • Status messaging
    • Text messaging
    • Packet data services
    • Group/individual calling
    • Telephone calling
    • Emergency calling
    • 0.3 sec call setup time
    • Max. 50W output (base station)
    • Priority calling
    • Status messaging
    • Text messaging
    • Packet data services
    • Tiers 1, 2, and 3
    Applications Public transportation
    (railways, subways, airports)
    plants (oil, gas, power IT)
    Public transportation
    (railways, subways, airports)
    small businesses (distribution, manufacturing)
Network Diagram
TRS Network Configuration Diagram