User Guide

PAMS
Technical Documentation
NSE–8/9
System Module
Page 2– 81
Issue 1 07/99
Transmitter
The transmitter consists of an IQ-modulator that is common for the
GSM900 and the GSM1800 chain, two image rejection upconversion
mixers, two power amplifiers and a power control loop.
Figure 24. Transmitter Block Diagram
Common Transmitter Part
The I- and Q-signals are generated by the COBBA in baseband. After the
post filtering (RC-network) they are fed into the IQ-modulator in the
SUMMA.