272 Chapter 9
BERT
Measuring RF Loopback BERT with Option 300
Configuring GSM Mode on the ESG Vector Signal Generator
The following steps will show you how to configure a timeslot with multiframe data, set up traffic channel 1,
and set the frequency and amplitude in GSM mode on the signal generator.
When configuring a timeslot in this procedure, keep the following points in mind:
• Prior to synchronization, the transmitter must be configured to generate multiframe data in the timeslot
to be tested.
• TCH synchronization requires that the training sequences match between the ESG timeslot configuration
and the timeslot sent by the base station. The default for the ESG, which is TSC0, can be modified.
1. Press
Preset.
2. Press
Aux Fctn > BERT > BTS BERT GSM Loopback > Configure Measurement >
Transmit Settings.
3. Press
GSM On Off to On > Data Format Pattern Framed to Framed > Configure Timeslots.
Refer to Figure 9-3. The GSM timeslot pattern is displayed on the screen.
Figure 9-3
4. Press
Timeslot Off On to Off.
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