User's Manual

Bay Level Offset Calibration68P09255A61-4
Aug 2002
1X SC 4812T BTS Optimization/ATP Software Release 2.16.1.x
FIELD TRIAL
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TX Path Audit
Perform the calibration audit of the TX paths of all equipped BBX slots
per the procedure in Table 3-38
WARNING
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.
NOTE
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.
TX Audit Test
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:
 CSM-1, GLIs, and BBXs have correct code load and data load.
 Primary CSM and MGLI are INS.
 All BBXs are OOS_RAM.
 Test equipment and test cables are calibrated and connected for TX
BLO calibration.
 LMF is logged into the BTS.
Connect the test equipment as shown in Figure 3-12 or Figure 3-13.
Follow the procedure in Table 3-38 to perform the BTS TX Path Audit
test.
Table 3-38: BTS TX Path Audit
 Step Action
1 Select the BBX(s) to be audited.
NOTE
If STANDARD or CDF is selected for Test Pattern, then at least one MCC must be also selected.
2 From the Tests menu, select TX>TX Audit.
3 Select the appropriate carrier(s) displayed in the Channels/Carrier pick list.
Press and hold the <Shift> or <Ctrl> key to select multiple items.
4 Type the appropriate channel number in the Carrier n Channels box.
5 If at least one MCC was selected in Step 1, select the appropriate transfer rate (1 = 9600, 3 = 9600
1X) from the drop-down list in the Rate Set box.
NOTE
The rate selection of 3 is only available if 1X cards are selected for the test.
6 Select Verify BLO (default) or Single-sided BLO.
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