User's Manual
Table Of Contents
- Contents
- Chapter 1 Introduction
- Chapter 2 Preliminary Operations
- Chapter 3 Optimization/Calibration
- Introduction to Optimization and Calibration
- Preparing the LMF
- Overview of Packet BTS files
- LMF Features and Installation Requirements
- LMF File Structure Overview
- LMF Home Directory
- NECF Filename Conventions and Directory Location
- LMF Installation and Update Procedures
- Copy BTS and CBSC CDF (or NECF) Files to the LMF Computer
- Creating a Named HyperTerminal Connection for MMI Communication
- Span Lines - Interface and Isolation
- LMF to BTS Connection
- Using the LMF
- Pinging the Processors
- Download the BTS
- CSM System Time - GPS & LFR/HSO Verification
- Test Equipment Set-up
- Test Set Calibration
- Background
- Calibration Procedures Included
- GPIB Addresses
- Selecting Test Equipment
- Manually Selecting Test Equipment in a Serial Connection Tab
- Automatically Selecting Test Equipment in the Serial Connection Tab
- Calibrating Test Equipment
- Calibrating Cables Overview
- Calibrating Test Cabling using Communications System Analyzer
- Calibrate Test Cabling Using Signal Generator & Spectrum Analyzer
- Setting Cable Loss Values
- Setting TX Coupler Loss Value
- Bay Level Offset Calibration
- Purpose of Bay Level Offset Calibration
- What is BLO Calibration?
- Component Verification During Calibration
- When to Calibrate BLOs
- BLO Calibration Data File
- Test Equipment Setup for RF Path Calibration
- Transmit (TX) Path Calibration Description
- TX Calibration and the LMF
- TX Calibration
- All Cal/Audit and TX Calibration Procedure
- Download BLO Procedure
- Calibration Audit Introduction
- TX Path Audit
- TX Audit Test
- Create CAL File
- RFDS Set-up and Calibration
- Alarms Testing
- Chapter 4 Automated Acceptance Test Procedures
Bay Level Offset Calibration68P64115A18–1
Mar 2003
1X SC 4812T Lite BTS Optimization/ATP Software Release R2.16.1.x
DRAFT
3-85
NOTE
Due to the size of the file, Motorola recommends printing out a
copy of a
bts–#.cal file and referring to it for the following
descriptions.
CAL File Organization
The CAL file is subdivided into three sections called “slot Blocks”.
These are:
1. Slot[1] Block which contains the calibration data for the six primary
BBX slots.
2. Slot[20] Block which contains the calibration data for the redundant
BBX (see Table 3-32).
3. Slot[385] Block which contains the calibration data for the RFDS.
BBX Slot Block Parts
BBX slot Blocks are further subdivided into the parts described in the
following:
Slot Block Header – Each BBX slot Block has a header section (slot
header) which contains:
S A creation Date and Time – broken down into separate parameters of
createMonth, createDay, createYear, createHour, and createMin.
S The number of calibration entries in the file – the numBayLevelPts
parameter. The parameter is fixed at 720 entries for SC4812–series
frames. These 720 entries are combined to define the 360 calibration
points of the CAL file.
S The slot Block format parameter.
Slot Block Bay Level Calibration Data – Each BBX slot Block has a
Bay Level Calibration data section (BayLevelCal) which is organized as
a large flat array. The array is organized by branch, SCCP cage BBX
slot, and calibration entries. There are several ways to look at the array
contents. Two different views are provided in the following to illustrate
the significant features of BayLevelCal section content and organization:
S The first view of the array is shown in Table 3-31. This view shows
the three branches of the array, transmit, main receive, and diversity
receive offsets, and the calibration entry ranges which apply to each.
Table 3-31: BLO
bts–#.cal File Array Branch Assignments
Range Branch Assignment
C[1]–C[120] Transmit
C[121]–C[240] No SC4812T Lite BLO cal point
entries (default only)
C[241]–C[360] Receive
C[361]–C[480] No SC4812T Lite BLO cal point
entries (default only)
C[481]–C[600] Diversity Receive
C[601]–C[720] No SC4812T Lite BLO cal point
entries (default only)