User Guide

Nokia Customer Care System Module
Company Confidential RH-30/RH-31
Issue 2 11/2004 © 2004 Nokia Corporation. Page 49
Figure 21: Front End
Power amplifier
The power amplifier features include:
• 50 ohm input and output, GSM850/EGSM900/GSM1800/GSM1900
• internal power detector
• EDGE mode
Figure 22: Power amplifier
Ant
RX
PCS
RX
DCS
RX
EGSM
TX
EGSM
TX
DCS/PCS
RX
GSM1900
RX
GSM1800
RX
EGSM900
GSM850
TX TX
EGSM900 GSM1800/
GSM850 1900
EGSM
out
DCS/
PCS
out
EGSM
in
DCS/
PCS
in
Power
detector
EGSM
Power
control
DCS/PCS
Power
control
Mode
EGSM900/GSM850
out
GSM1800/1900
out
EGSM900
GSM850
in
GSM1800/
1900
in
Power
detector
EGSM900 GSM1800/
GSM850 1900
Power Power
control control
Mode