Freedom R8100 SERIES, Operator'S Manual

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2.2.7.7.1 TETRA transmitter tests
These tests are performed with the R8100 in Monitor mode. During radio transmission the R8100
continuously measures the quality of the radio’s transmitted π/4 DQPSK signal. The service monitor
synchronizes to the DMO TDMA Normal burst (235 symbols, 470 bits) in slot 1; Trunked Mode Operation
(TMO), Synchronization, and Linearization bursts are not measured.
Figure 2.2.7.7-2. Submenu after pressing TETRA soft key in Monitor mode
2.2.7.7.1.1 RF Zone
Input Level
Input Lvl displays the power level in the burst of the synchronized TDMA slot 1 of the received signal.
The measurement is done at the optimal symbol times and positions to exclude adverse effects of
frequency error and residual carrier.
Note: Averaging over multiple bursts may be performed per 2.2.7.7.1.2 to comply with the standard.
Note: Input Level is used for Squelch and Squelch prevents TETRA zone measurement updates.