Two-way VHF/UHF communications

ATDI South Pacific


The objective of this module to familiarise RF engineers with design of Analog and Digital Two-way communications system such as LMR, DMR, P25, TETRA, etc… which are based on TSB-88 standards.


This module is of 3 hours duration.


105 Euro


This module assumes that the participant is familiar with RF concepts such as Antenna theory, RF propagation, and Link Budgets.

Topics covered:

  • Overview of Trunked Radio Technologies (Analog and Digital),
  • Static Sensitivity,
  • Faded Sensitivity,
  • DAQ,
  • Coverage Probability,
  • Balanced Link Budget derivation,
  • Protection Ratio method,
  • Interference Rejection Ratio – IRF,
  • Circuit Capacity: Erlang B & C.

Minimum Attendance Required to run the Session:

5 People

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