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
Test Set Calibration
68P64115A18–1
Mar 2003
1X SC 4812T Lite BTS Optimization/ATP Software Release R2.16.1.x
DRAFT
3-78
Calibrating Test Cabling using Communications System Analyzer
NOTE
LMF cable calibration cannot be accomplished with an
HP8921A analyzer for 1.9 GHz. A different analyzer type or the
signal generator and spectrum analyzer method (Table 3-27 and
Table 3-28) must be used. Cable calibration values must be
manually entered into the LMF cable loss file if the signal
generator and spectrum analyzer method is used. To use the
HP8921A for manual test cable configuration calibration for 800
MHz BTSs, refer to the Manual Cable Calibration section of
Appendix F.
Prerequisites
S Test equipment is turned on and has warmed up for at least 60
minutes.
S Test equipment has been selected in the LMF (Table 3-23 or
Table 3-24).
S Test equipment has been calibrated and correctly connected for the
type of test cable configuration to be calibrated.
Procedure
Refer to Figure 3-11, Figure 3-12, or Figure 3-13 and follow the
procedure in Table 3-26 to calibrate the test cable configurations.
Table 3-26: Test Cabling Calibration using Comm. System Analyzer
n Step Action
1 Click Util in the BTS menu bar, and select Cable
Calibration... in the pull–down menu. A Cable
Calibration window is displayed.
2
Enter one or more channel numbers in the Channels box.
NOTE
Multiple channel numbers must be separated by a comma
with no spaces (for example,
200,800). When two or
more channel numbers are entered, the cables will be
calibrated for each channel. Interpolation will be
accomplished for other channels, as required, for TX
calibration.
3 Select TX and RX CABLE CAL, TX CABLE CAL or
RX CABLE CAL in the Cable Calibration picklist.
4 Click OK, and follow the directions displayed for each
step. A status report window will be displayed with the
results of the cable calibration.