Hello there community members!
Today I would like to talk about RF Unit TX Channel Gain out of Range, this alarm comes on RF units of all kinds,
When you encounter this alarm you Reset the RF module remotely if come back Replace the RF module and this alarm is a type of The hardware of the RF unit is faulty.
RF Unit TX Channel Gain out of Range
This alarm is reported when the difference between the actual gain and the standard gain on the TX channel of the RF module is greater than 2.5 dB For MPRF, the alarm threshold is 10 dB.
Alarm Impact
When the gain on the TX channel is extremely high, the downlink coverage of the cell is excessive. In this case, the interference caused by cross coverage occurs.
When the gain on the TX channel is extremely low, coverage holes exist in the downlink coverage of the cell. In serious cases, the ongoing services carried on the RF
Handel
1- You must accurately locate the cell that issued the alarms by the cabinet and the sub-rack
2- Reset the RF module remotely if come back Replace the RF unit.
The following screenshot of the 2G ( MRFU) site contains an RF Unit TX Channel Gain out of Range alarm. we have had to reset the RF hardware and software but the alarm is come back so we finally replaced the RF module.
The following screenshot of the 3G ( RRU) site contains an RF Unit TX Channel Gain out of Range alarm.
we have had to reset the RF software and hardware but the alarm is back so we finally replaced the RF module.
You must accurately locate the cell that issued the alarms by the cabinet and the sub-rack
You can use DSP BRDMFRINFO
Use this command to query the manufacturing information about a board. Only one board can be queried at a time. Because there is only one backplane in the BBU subrack, the manufacturing information about the subrack can be obtained by the query of the manufacturing information about the backplane.
thanks for reading,
