User's Manual

Bay Level Offset Calibration – continued
PRELIMINARY
SC 4812ETL BTS Optimization/ATP
08/15/2000
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Calibration Audit Introduction
The BLO calibration audit procedure confirms the successful generation
and storage of the BLO calibrations. The calibration audit procedure
measures the path gain or loss of every BBX2 transmit path at the site.
In this test, actual system tolerances are used to determine the success or
failure of a test. The same external test equipment set up is used.
*
RF path verification, BLO calibration, and BLO data
download to BBX2s must have been successfully
completed prior to performing the calibration audit.
IMPORTANT
Transmit (TX) Path Audit
Perform the calibration audit of the TX paths of all equipped BBX2
slots, per the steps in Table 3-35.
Before installing any test equipment directly to any TX
OUT connector, first verify there are no CDMA BBX2
channels keyed. Failure to do so can result in serious
personal injury and/or equipment damage.
WARNING
If a successful All Cal/Audit was completed, this
procedure does not need to be performed, as BLO is
downloaded as part of the All Cal/Audit.
NOTE
3