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
BTS Equipment Identification68P64115A18–1
Mar 2003
1X SC 4812T Lite BTS Optimization/ATP Software Release R2.16.1.x
DRAFT
1-23
Transmit & receive, non–duplexed, Receive filter, Dual
Directional Coupler (TRF)
TRFs provide separate, bandpass–filtered sector transmit and receive
paths. When TRFs are used, separate transmit and receive antennas are
required for each sector. As with DRFs, dual directional couplers for
each antenna path are incorporated in TRFs to permit signal monitoring
by the RFDS.
Figure 1-5: DRF and TRF Details
DRF
TRF
SC4812ETL0005–4
BTS
CPLD
TX
RX
ANT
CPLD
TX BTS
CPLD
TX ANT
CPLD
TX
RX
RX ANT
CPLD
RX BTS
CPLD
RX
ANTENNA
TX
ANTENNA
DUPLEXED
TX & RX ANTENNA