How many BTS or TRX can be connected? It depends on what type of BSC it is. For example Ericsson BSC supports 1024 TRX and if it is mega BSC then it will support 2048 TRX
and also +24VDC supply is being used on most BTS. take ericsson rbs2000 series for example.. they are using either +24VDC or -48VDC. but even if it is supplied by -48VDC the PSU is converting -48VDC to +24VDC. if +24VDC, the PSU is supplied by 220VAC and then converted to +24VDC.
I’d like to know about the RBS 2204, RBS 2206. May anyone give me Info. about how the system works? how the RF signals flow in and out? Input/Output power levels, receive sensitivity level.
I want to know about the functioning of the duplexer, multicoupler, combiner and the TRX cards, and ect. Ericsson.
I’d like to know about the RBS 2204, RBS 2206. May anyone give me Info. about how the system works? how the RF signals flow in and out? Input/Output power levels, receive sensitivity level.
I want to know about the functioning of the duplexer, multicoupler, combiner and the TRX cards, and ect. Ericsson.
Hi Andi,
RX diversity lost issue relate to an anomally on the receiver path.Its is similar to VSWR but for its occurrence on the RX path. Try and swap your TX leg for RX and monitor if VSWR alarm will come up. If this happens it then means there is a problem on the feeder line and a feeder/Antenna sweep should be done.
You should also do a Diversity Supervision measurement on the affected TRX.