User Manual

TX BLO Calibration for MC – continued
3-88 1X SC4812T–MC BTS Optimization/ATP 5/21/04
DRAFT
Table 3-37: Procedure for TX Calibration and TX Audit
n Step Action
! CAUTION
1. This procedure will not work on an SC4812T–MC BTS operating
with Software Release 2.16.4.0 and earlier. To calibrate an
SC4812T–MC BTS operating on these earlier releases refer to the
manual offset calibration procedure in 1X SC4812T–MC BTS
Optimization/ATP; 68P09259A07.
2. This procedure requires the use of LMF application software
version 2.16.4.0.09 or later.
1 Select the BBXs for the carrier to be calibrated and the
BBX–R by clicking on each card.
2 Perform BLO calibration or TX audit by doing the
following:
2a – Perform one of the following:
–– If performing TX Calibration: Click Tests in
the BTS menu bar, and select TX > TX Cal-
ibration from the pull–down menus.
–– If performing TX Audit: Click Tests in the
BTS menu bar, and select TX > TX Audit from
the pull–down menus.
2b – Select the carrier’s channel number from those
displayed in the Channels/Carrier pick list.
2c – Select test to perform as TX Cal.
2d – Enter the selected carrier’s XCVR gain value of 40
(dBm).
2e – In the Test Pattern box, select the test pattern to use
as Pilot.
–– The LMF will automatically key the designated
BBX and ask the operator to move the test
equipment cable to appropriate TX path.
3 Download BLO to all the calibrated BBXs. (See
Table 3-38 for details).
Save the carrier’s TX BLO calibration results.
Download TX BLO Data
Select all BBXs including the BBXR. From the Device menu, select
BBX >Download >BLO.
Copy TX BLO data for
CBSC/OMCR
Follow the procedure described in Create Cal file (see Table 3-39).
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