
176 Chapter 6
BERT Testing
Measuring RF Loopback BER with Option 300
Figure 6-11
NOTE To select an alternate trigger mode (for example, Immediate):
Press
Return three times, then press Configure Triggers >
BERT Trigger Source > Immediate.
Using Amplitude Sensitivity Search
This procedure shows you how to set a pass amplitude with high and low amplitude
boundaries, and how to set both the target error percentage, and the frame count for an
amplitude sensitivity search.
1. Press
Aux Fctn > BERT > BTS BERT GSM Loopback.
2. Press
Configure Measurement > Measurement Mode BER/BLER% Search to Search.
Notice that the
Configure Sensitivity Search and Arm Sensitivity Search softkeys are enabled.
3. Press
Configure Sensitivity Search to access the softkey menu for configuring the sensitivity
search. Refer to Figure 6-12 on page 177.
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