Andrew Wireless System NCM843 Manuel D’Utilisation

5 Functional Description 

 

 

Page 37

 
The following figure shows the RF block diagram of the Node M/C. 
 

 

 
The Node M/C is designed to amplify signals between multiple mobiles and a base 
station in a UMTS/CDMA system. The unit consists of a filter and amplifier chain in 
the downlink and one or two filters and amplifier chains in the uplink (primary and 
diversity). The uplink and downlink paths are connected via a duplexer on both ends 
of each path.