Andrew Wireless System NCM843 Manuel D’Utilisation

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User’s Manual for Node M and Node C
Network Elements
 
Page 42 
M0121A4A.doc
5.2.7.  Downlink Final Amplifier 
 
For the Node M/C x37 an MCPA (multi carrier power amplifier) is used. 
This is an error-correcting feed-forward amplifier. It has a high output power while 
maintaining superior intermodulation and linearity performance. 
 
 
figure 5-3 Node M/C x37 MCPA DL final amplifier 
 
For the Node M/C x43 an MCPA (multi carrier power amplifier) with more output 
power is used. This is an error-correcting feed-forward amplifier. It has a high output 
power while maintaining superior intermodulation and linearity performance. 
 
 
figure 5-4 Node M 2143 and Node M 1943 MCPA DL final amplifier