ALM-26522 RF Unit RX Channel RTWP/RSSI UnbalancedDescriptionThis
alarm is reported when the difference between the RTWP/RSSI of the
main RX channel and the RTWP/RSSI of the diversity RX channel
exceeds 32 dB (configurable).ParametersParameter NameParameter
Description
Cabinet No.Cabinet number of the faulty board
Subrack No.Subrack number of the faulty board
Slot No.Slot number of the faulty board
Carrier No.Carrier number
Board TypeType of the faulty RF unit
RTWP of Main RX Channel (0.1 dBm)RTWP of the main RX channel
RTWP of Diversity RX Channel (0.1 dBm)RTWP of the diversity RX
channel
Impact on the SystemAlarm SeverityAlarm Impact
MinorThe receive sensitivity of the RF unit decreases. The
demodulation performance of the cell deteriorates. The uplink
coverage shrinks.
System ActionsNone Possible Causes1. The main RX channel or
diversity RX channel of the RF unit is faulty. 1. The setting of
attenuation on the RX channel of the RF unit is incorrect. 1.
External interferences exist on the main or diversity antenna of
the RF unit. 1. The feeder connected to the RF unit is faulty,
which results in a high passive intermodulation power of the main
antenna. 1. Antenna cables are connected incorrectly.
