Table of Contents
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On-site Maintenance Manual
Airbridge cBTS3612 CDMA Base Station
3.12 Satellite Antenna and Feeder
3.12.1 Fault Description
I.
The satellite antenna and feeder is not working
properly
3.12.2 Troubleshooting
When satellite antenna and feeder gets faulty, the alarm of
antenna open-circuit or the antenna short-circuit will be generated.
When such problem arises, we need to check if the connectors
are fixed tightly and correctly or if the seal is getting loose or missing.
Check the following to locate the problems:
Water infiltration in the antenna and feeder system;
1)
The antenna, feeder and jumper are damaged;
2)
3)
The lightning arrester of the satellite antenna and feeder is
damaged;
4)
Satellite antenna and jumper connection disconnected or in
poor contact;
5)
The feeder and jumper connection disconnected or in poor
contact;
6)
The connection between the cabinet-top jumper and the
cabinet-top connector disconnected or in poor contact;
7)
Internal cabinet jumper and SMA connector on the BCKM
panel disconnected or in poor contact;
8)
SMA connector and GPS receiving card disconnected or in
poor contact.
Chapter 3 Component Failure
3-28
Handling
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Table of Contents
Troubleshooting
