
Chapter 6 173
BERT Testing
Measuring RF Loopback BER with Option 300
7. On the ESG, press Configure Measurement > Timeslot # > 2 > Enter.
This sets the ESG to expect the TCH in timeslot 2.
8. Press
Return > Synchronize to BCH/TCH/PDCH to begin synchronization to the TCH.
NOTE For the EDGE format, do the following to achieve TCH Sync Lock:
Press Configure Measurement > Timeslot # > 2 > Enter > Return > Adjust Gain.
Then you will see Synchronizing to TCH flashing on the display followed by the
Synchronizing to PN message.
Once synchronization is achieved, the Ready TCH Sync Lock message is displayed. Refer
to Figure 6-8.
Figure 6-8
Synchronizing to the TCH
The following steps show you how to synchronize to the traffic channel. The TCH is only
required to contain a valid midamble. If appropriate for your base station, this
synchronization can be performed without prior BCH synchronization.
NOTE If the base station is transmitting a BCH signal, turn it off at this time.
1. Follow the instructions under “Configuring GSM Mode on the Agilent Technologies
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