User Manual

TX Calibration Audit
5/21/04 1X SC4812T–MC BTS Optimization/ATP 3-89
DRAFT
Introduction
RF path verification, BLO calibration, and BLO data
download to BBXs must have been successfully completed
prior to performing the calibration audit.
NOTE
The BLO calibration audit procedure confirms the successful generation
and storage of the BLO calibration offsets. The calibration audit
procedure measures the path gain or loss of every BBX 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.
Before installing any test equipment directly to any TX
OUT connector, first verify there are no CDMA BBX
channels keyed. Failure to do so can result in serious
personal injury and/or equipment damage.
WARNING
The Tests menu item, TX Audit, performs the TX BLO Audit test for a
BBX(s). All measurements are made through the appropriate TX output
connector using the calibrated TX cable setup.
Prerequisites
Before running this test, ensure that the following have been done:
All PAs must be INS during any TX testing.
NOTE
S CSM–1, GLIs, and BBXs have correct code load and data load.
S Primary CSM and MGLI are INS.
S All BBXs are OOS_RAM.
S Test equipment and test cables are calibrated and connected for TX
BLO calibration.
S LMF is logged into the BTS.
Test Procedure
Connect the test equipment as shown in Figure 3-15 or Figure 3-16.
Follow the procedure in Table 3-37 using the If performing TX Audit
alternate Step 1 to perform the BTS TX Path Audit test.
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