Andrew Node G Series - Downlink Final Amplifier; Figure 4-4 Node G X30 MCPA DL Final Amplifier; Figure 4-5 Node G X38 SCPA DL Final Amplifier

User’s Manual for Node G
Network Elements
Page 34
M0121A2A.doc
4.3.1. Downlink Final Amplifier
For the Node G x30 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 4-4 Node G x30 MCPA DL final amplifier
For the Node G x38 an SCPA (single carrier power amplifier) is used.
This is a cartesian feedback amplifier for two channels. The advantage of a SCPA is
a higher output power per channel.
figure 4-5 Node G x38 SCPA DL final amplifier