User's Manual Part 2

Bay Level Offset Calibration – continued
MAY 2004 1X SC480 BTS Hardware Installation, Optimization/ATP, and FRU 6-87
PRELIMINARY
Table 6-37: Procedure for BTS TX Path Audit
n ActionStep
8 From the Test Pattern pick list, select a test pattern.
– Selecting Pilot (default) performs tests using a pilot signal only.
– Selecting Standard performs tests using pilot, synch, paging and six traffic channels. This
requires an MCC to be selected.
– Selecting CDFPilot performs tests using the CDF value for pilot gain and IS–97 gain values
for all the other channels included in the Standard pattern setting (paging, synch, and six
traffic). Using this pattern setting requires the selection of both a BBX and at least one MCC.
– Selecting CDF performs tests using pilot, synch, paging and six traffic channels, however, the
gain for the channel elements is specified in the CDF file.
9 Click OK to display the status report window followed by a Directions pop-up window.
10 Follow the cable connection directions as they are displayed. When the calibration process is
completed, results will be displayed in the status report window.
11 Click on the Save Results or Dismiss button, as desired, to close the status report window.
Exception Handling
In the event of a failure, the calibration procedure displays a FAIL
message in the status report window and provides information in the
Description field.
Create CAL File
The LMF Create CAL File function gets the BLO data from BBXs and
creates or updates the CAL file for the BTS. After a BTS has been fully
optimized a copy of the CAL file must exist so it can be transferred to
the CBSC. If TX calibration has been successfully performed for all
BBXs and BLO data has been downloaded, the BLO data must be saved
to the CAL file in the BTS folder. If this is a first time calibration and
no CAL file is stored in the BTS folder, the procedure in Table 6-38 will
create the file and store the BLO data in it. If the CAl file already exists,
this procedure will update it with the new BLO data. Note the following:
S The Create Cal File function only applies to selected (highlighted)
BBXs.
Editing the CAL file is not encouraged as this action can
cause interface problems between the BTS and the LMF.
To manually edit the CAL file you must first logout of the
BTS. If you manually edit the CAL file and then use the
Create Cal File function the edited information will be lost.
CAUTION
Prerequisites
Before running the procedure in Table 6-38, the following should be
done:
6