TETRA System Survey

Course Description:

Terrestrial Trunked Radio (TETRA), a modern standard for digital Private Mobile Radio (PMR) and Public Access Mobile Radio (PAMR) has very broad capabilities and extensive technical specifications. This course provides a survey of the TETRA market, frequency bands, technology features, network components, interfaces, services capabilities and operational modes. It also details the air interface, transmission architecture and switching infrastructure and inter-operability aspects.

Who will Benefit:

Telecom engineering personnel involved in TETRA System Design, Operation and Maintenance.


Familiarity with any radio system, or have attended the RF Crash Course..

Technical Level:

Mode of Delivery:

Instructor led classes, multi-media simulations, applets, tutorial exercise and videos.

  • Sketch the TETRA network components and identify all the interfaces
  • Apply cellular radio principles to the design of large-scale TETRA networks
  • Identify TETRA users and services
  • Use traffic theory and Erlang-B traffic table to estimate TETRA cell capacity
  • List and describe the capabilities of the teleservices and bearer services
  • Describe the CS and PS data capabilities of TETRA
  • Describe TETRA advanced packet services (TAPS)
  • Explain how error protection is applied in TETRA channels
  • Describe the radio characteristics of TETRA base station and mobile station
  • Discuss digital signal processing techniques in TETRA systems
  • Describe network architecture topologies of TETRA and state the functions of key network elements
  • Describe the general structure and operation of the TETRA air interface
  • Describe all the mobility management functions incorporated in a TETRA network
  • Describe the capabilities  of trunked mode operation (TMO) and direct mode operation (DMO)

  • Introduction to TETRA
    • PMR standards
    • PMR requirements
    • TETRA capabilities
    • TEDS and TETRA 2
  • TETRA System Architecture
    • Physical and logical entities
    • Terminals
    • Network topologies
    • Interconnections
  • TETRA Radio Interface
    • Vocoders vs. waveform coders
    • TETRA codec
    • TETRA frequency allocation
    • TDMA frames structure
    • Simplex and duplex working
    • Full duplex and semi-duplex modes
    • Logical channels and physical channels
  • Trunked Mode Operation
    • Voice callas
    • Short Data Service ( SDS)
    • Data calls
    • Cell selection
    • Location update
    • Handoff procedure 
  • Direct Mode Operation
    • DMO services
    • Frequency efficient mode
    • DMO equipment types and connections
    • Managed DMO (M-DMO)