E.F. Johnson Company 5100 Series, Сборка и испытания

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August 2008 PC Tune Test Procedures for 5100 Series Portable Radios 4-3
Tuning and Performance Tests
Note
In Tune mode, PC Tune enters transmit mode automatically when needed. It is not
necessary to push PTT on the radio unless directed by the Tuning Instructions.
Each radio has specific tuning parameters that are unique to that radio. Avoid copying the
tuning file from one radio into another radio, as this may cause degraded performance.
4.3 Digital Performance Tests
The PC Tune software includes menus for Transmit and Receive tests to check the
performance of the radio on digital channels.
In addition to the test preparations of paragraph 4.1, the following conditions apply:
• These tests follow the TIA-102-CAAA-A “Digital C4FM/CQPSK Transceiver
Measurement Methods” specification.
• A digital conventional channel preprogramming by the PC Configure software is used
for testing. The PC Tune software does not select a specific test channel. The test
channel must be programmed with the following options:
NAC - 293 (hex)
TGID (Talk Group ID) - 1
Frequency - Any frequency in radio operating band
Specific zone and channel - programmed with PC Configure
4.3.1 Receive Test Setup
Follow these steps to set up the receive test:
1
Complete the procedures of 4.1, “Digital Test Preparation.”
2
With the Communications Analyzer connected to the radio’s antenna jack, set the
analyzer output for the 1011 test pattern.
4.3.2 Receive (BER) Test
The Receive Test is a BER (Bit Error Rate) test. (BER is the ratio of the receive bit errors
to the total number of bits transmitted.)
CAUTION !