User Guide

CCS Technical Documentation System Module
NPM-2NX
Issue 1 07/02 ãNokia Corporation Page 59
•Rx calibrated on five channels (including low, mid and high channels) in GSM
FLALI
•fixed cross band compensations used for AMPS/TDMA
• RSSI v temperature
•Rx NTC calibrated at room temperature in FLALI
•Rx gain compensated for temperature according to a linear relationship
(GSM only)
•AMPS/TDM use TX power detector NTC value for rx gain compensation (three
compensation levels depending on temperature; not linear (operation)
• Iref v power, temp, mode and Vbat
•different Iref values are used at different PLS in AMPS/TDMA mode
RF Characteristics
Table 28: Main RF characteristics of D-AMPS and TDMA 1900 operation
Table 29: Main characteristics of GSM operation
AMPS/TDMA800 TDMA1900
Receive frequency range 869 - 894 MHz 1930 – 1990MHz
Transmit frequency range 824 – 849 MHz 1850 – 1910 MHz
Duplex spacing 45 MHz 80 MHz
Channel spacing 30 kHz
Number of RF channels 832 1997
Power Class IV IV
Nominal power on highest power level 25.7/27.3 dBm 27.3 dBm
Number of power levels 9 (PL2-10)
Modulation Scheme pi/4 DQPSK, FM, FSK pi/4 DQPSK
GSM1900
Receive frequency range 1930 – 1990MHz
Transmit frequency range 1850 – 1910 MHz
Duplex spacing 80 MHz
Channel spacing 200 kHz