User's Manual
Table Of Contents
- Table of Contents
- List of Figures
- List of Tables
- Foreword
- FCC Requirements
- General Safety
- Revision History
- Patent Notification
- Chapter 1 Introduction
- Chapter 2 Preliminary Operations
- Chapter 3 Optimization/Calibration
- Optimization/Calibration - Introduction
- Isolate Span Lines/Connect LMF
- Preparing the LMF
- Using CDMA LMF
- Download the BTS
- CSM System Time/GPS and LFR/HSO Verification
- Test Equipment Set-up
- Test Set Calibration
- Bay Level Offset Calibration
- RFDS Set-up and Calibration
- BTS Redundancy/Alarm Testing
- BTS Alarms Testing
- Preliminary Operations: Overview
- Pre-Power-up Tests
- Initial Power-up Tests
- Chapter 4 Automated Acceptance Test Procedure
- Automated Acceptance Test Procedures - All-inclusive TX & RX
- TX Output Acceptance Tests: Introduction
- TX Spectral Purity Transmit Mask Acceptance Test
- TX Waveform Quality (rho) Acceptance Test
- TX Pilot Time Offset Acceptance Test
- TX Code Domain Power/Noise Floor Acceptance Test
- RX Frame Error Rate (FER) Acceptance Test
- Generate an ATP Report
- Chapter 5 Prepare to Leave the Site
- Chapter 6 Basic Troubleshooting
- Basic Troubleshooting Overview
- Troubleshooting: Installation
- Troubleshooting: Download
- Troubleshooting: Calibration
- Troubleshooting: Transmit ATP
- Troubleshooting: Receive ATP
- Troubleshooting: CSM Check-list
- C-CCP Backplane Troubleshooting
- Module Front Panel LED Indicators and Connectors
- Basic Troubleshooting - Span Control Link
- Appendix A Data Sheets
- Appendix B PN Offset/I & Q Offset Register Programming Information
- Appendix C FRU Optimization/ATP Test Matrix
- Appendix D BBX Gain Set Point vs. BTS Output
- Appendix E CDMA Operating Frequency
- Appendix F PCS Interface Setup for Manual Testing
- Appendix G VSWR
- Appendix H Download ROM Code
- Appendix I In-Service Calibration
- Appendix J GPIB Addresses
- Introduction
- HP437 Power Meter GPIB Address
- Gigatronics 8541C Power Meter GPIB Address
- Motorola CyberTest GPIB Address
- HP8935 Test Set GPIB Address
- Setting HP8921A and HP83236A/B GPIB Address
- Advantest R3465 GPIB Address
- RS232 GPIB Interface Box
- Advantest R3267 Spectrum Analyzer GPIB Address
- Agilent E4406A Transmitter Tester GPIB Address
- Index
Transmit & Receive Antenna VSWR
68P09255A61-4
Aug 2002
1X SC 4812T BTS Optimization/ATP Software Release 2.16.1.x
FIELD TRIAL
G-4
Table G-1: VSWR Measurement Procedure - HP Test Set
Step HP TEST SETAction
5 Calculate the VSWR per the equation shown to the right.
Where:
R
L(
dB) = P
A
(dBm) - P
S
(dBm)
P
A = Power reflected from antenna
P
S = Power reflected from short
A calculated value of -13.98 dB equates to VSWR of better than 1.5:1.
VSWR +
ȧ
ȧ
ȡ
Ȣ
1 ) 10
RL
20
1 – 10
RL
20
ȧ
ȧ
ȣ
Ȥ
6 If the readings indicate a potential problem, verify the physical integrity of all cables (including any
in-line components, pads, etc.) and associated connections up to the antenna. If problem still persists,
consult antenna OEM documentation for additional performance verification tests or replacement
information.
7 Repeat steps 2 through 6 for all remaining TX sectors/antennas.
8 Repeat steps 2 through 6 for all remaining RX sectors/antennas.
Figure G-1: Manual VSWR Test Setup Using HP8921 Test Set (1700/1900 MHz)
RF OUT
ONLY
PORT
RF
IN/OUT
PORT
RVS
(REFLECTED)
PORT
FEED LINE TO
ANTENNA
UNDER TEST
RF SHORT
30 DB
DIRECTIONAL
COUPLER
OUTPUT
PORT
FWD (INCIDENT)
PORT 50-OHM
TERMINATED LOAD
INPUT
PORT
FW00342
G