User guide

554
pmp-0229 (Mar 2013)
Using the BER Results Tool (SM, BHS) Using Tools in the GUI
The BER Results tab can be helpful in troubleshooting poor link performance. The value in the
Measured Total Bit Error Rate field represents the bit error rate (BER) in the RF link since the
last time the BER Results tab was clicked. If the AP is enabled for 2X operation, then this tab
displays both Primary (1X) and Secondary (2X) Bit Error Rate fields. If the link sometimes
operates in 2X, then the Measured Secondary Bit Error Rate field is populated by a
measurement.
The link is acceptable if the value of this field is less than 10
−4
. If the BER is greater than 10
−4
, re-
evaluate the installation of both modules in the link.
The BER test signal is broadcast by the AP (and compared to the expected test signal by the SM)
only when capacity in the sector allows it. This signal is the lowest priority for AP transmissions.