Freedom R8100 SERIES, Руководство оператора

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2.2.7.9.1 P25 phase 2 transmitter tests
Figure 2.2.7.9.1-1 Main screen in Monitor mode after selecting the P25 II Test Mode
Transmitter tests are performed with the R8100 in Monitor mode and protocol specific tests are accessed
with the P25 II soft key – see Figure 2.2.7.9.1-1. The R8100 searches for the synchronization pattern and
then continuously measures the quality of the radio’s transmitted signal as long as the R8100 is
synchronized to it. The logical channel to analyze defaults to LCH0 but switches to LCH1 if LCH0 is null.
For Bit Error Rate (BER) testing the manufacturer’s RSS software is required. This configures the radio
in a special test mode for transmitting TIA-102.CCAA compliant test patterns such as 1031 Hz Tone,
Calibration, Silence, Interference, Low and High deviation patterns.
The test patterns provided in the R8100 may be classified into two groups depending on the modulation
type. For each modulation type (HCPM/HDQPSK), there is a corresponding tone, calibration and silent
test pattern that contains the applicable symbol data in the appropriate inbound/outbound TDMA frame
format. The high deviation, low deviation, and interference test patterns are unframed and common to
both modulation schemes.
The tests performed are as follows: