Antenna Feeder Fault; Radio Frequency Antenna Feeder Part; Satellite Antenna Feeder Part - Huawei Airbridge CBTS3612-800 User Manual

User Manual
Airbridge cBTS3612-450 12-carrier CDMA Base Station

7.1 Radio Frequency Antenna Feeder Part

7.1.1 Description of Fault
Standing wave alarm.
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At the antenna port, there is no or too low transmission power.
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7.1.2 Fault Analysis and Location
If this fault occurs, check the standing waves and transmission powers (including the
testing of the power from the CDU coupled output interface) from the CDU antenna
port to the antenna terminal of the base station step by step . Meantime, check
whether the connectors are installed correctly and fastened well, and whether the
sealing gum gets loosen or even fallen off. The specific treatment procedures are as
follows:
1)
Check whether the antenna feeder system is penetrated by water.
2)
Check whether the antenna, feeder and jumper are damaged (such as short
circuit or open circuit).
3)
Check whether the base station antenna and jumper connection are open or in
poor contact.
4)
Check whether the jumper and feeder connection are open or in poor contact.
5)
Check whether the jumper and connector connection at the top of the equipment
are open or in poor contact.
6)
Check whether the jumper inside a cabinet and the CDU connection are open or
in poor contact.
7)
Check whether the feeder or jumper connector is not correctly installed on site.

7.2 Satellite Antenna Feeder Part

7.2.1 Description of Fault
Antenna open circuit alarm.
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Antenna short circuit alarm.
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7.2.2 Fault Analysis and Location
When this fault occurs, it is necessary to check whether the connectors are installed
correctly and fastened well, and whether the sealing gum gets loosen or even fallen
off .The specific treatment procedures are as follows:
1)
Check whether the satellite antenna feeder system is penetrated by water.
2)
Check whether the satellite antenna, feeder and jumper are damaged (such as
the short circuit or open circuit).
3)
Check whether the satellite antenna feeder lightning protector is damaged.
4)
Check whether the satellite antenna and jumper connection are open or in poor
contact.
03Q-0112-20020720-120

7 Antenna Feeder Fault

7 Antenna Feeder Fault
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