Instruction Manual
Table Of Contents
- Contents
- Figures
- Tables
- General Safety
- Introduction
- Preliminary Operations
- Optimization/Calibration
- Automated Acceptance Test Procedures (ATPs)
- Leaving the Site
- Basic Troubleshooting
- Data Sheets
- Test Matrix
- BBX Gain Set Point vs BTS Output
- CDMA Operating Frequency
- PN Offset/I & Q Register
- Test Equipment Preparation
- In-Service Calibration
- Index
Troubleshooting: Calibration – continued
Apr 2001
6-7
SC4812ET BTS Optimization/ATP — CDMA LMF
DRAFT
Calibration Audit Failure
Table 6-9: Troubleshooting Calibration Audit Failure
Step Action
1 Verify Power Meter is configured correctly (refer to the test equipment setup
section of chapter 3).
2 Re-calibrate the Power Meter and verify it is calibrated correctly with cal factors
from sensor head.
3 Verify that no LPA is in alarm state (rapidly flashing red LED). Reset the LPA by
pulling the circuit breaker, and, after 5 seconds, pushing back in.
4 Verify that no sensor head is functioning properly by checking it with the 1 mW
(0 dBm) Power Ref signal.
5 After calibration, the BLO data must be re-loaded to the BBX2s before auditing.
Click on the BBX(s) and select Device>Download BLO
Re-try the audit.
6 Verify GPIB adapter is not locked up. Under normal conditions, only 2 green
LEDs must be ‘ON’ (Power and Ready). If any other LED is continuously ‘ON’,
power-cycle (turn power off and on) the GP–IB Box and retry.
6