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
Troubleshooting: Transmit ATP68P09255A61-4
Aug 2002
1X SC 4812T BTS Optimization/ATP Software Release 2.16.1.x
FIELD TRIAL
6-9
Troubleshooting: Transmit ATP
BTS passed Reduced ATP tests but has forward link problem during normal
operation
Follow the procedure in Table 6-10 to troubleshoot a Forward Link
problem during normal operation.
Table 6-10: Troubleshooting Forward Link Failure (BTS Passed Reduced ATP)
Step Action
1 Perform these additional TX tests to troubleshoot a forward link problem:
- TX mask
- TX rho
- TX code domain
Cannot Perform TX Mask Measurement
Follow the procedure in Table 6-11 to troubleshoot a TX mask
measurement failure.
Table 6-11: Troubleshooting TX Mask Measurement Failure
Step Action
1 Verify that TX audit passes for the BBX(s).
2 If performing manual measurement, verify analyzer setup.
3 Verify that no LPA in the sector is in alarm state (flashing red LED).
Re-set the LPA by pulling the circuit breaker and, after 5 seconds, pushing it back in.
Cannot Perform Rho or Pilot Time Offset Measurement
Follow the procedure in Table 6-12 to troubleshoot a rho or pilot time
offset measurement failure.
Table 6-12: Troubleshooting Rho and Pilot Time Offset Measurement Failure
Step Action
1 Verify presence of RF signal by switching to spectrum analyzer screen.
2 Verify PN offsets displayed on the analyzer is the same as the PN offset in the CDF file.
3 Re-load BBX data and repeat the test.
4 If performing manual measurement, verify analyzer setup.
5 Verify that no LPA in the sector is in alarm state (flashing red LED). Reset the LPA by pulling the
circuit breaker and, after 5 seconds, pushing back in.
6 If Rho value is unstable and varies considerably (e.g. .95,.92,.93), this may indicate that the GPS
is still phasing (i.e., trying to reach and maintain 0 freq. error).
Go to the freq. bar in the upper right corner of the Rho meter and select Hz. Press <Shift-avg>
and enter 10, to obtain an average Rho value. This is an indication the GPS has not stabilized
before going INS and may need to be re-initialized.
6