User Guide

CCS Technical Documentation 7 - System Module & UI
Company Confidential NMM-3
Issue 1 (11/2003) Copyright  2003 Nokia Corporation Page 7-33
Company Confidential
GSM RF
GSM RF Characteristics
Table 4: GSM900 / GSM1800 System Characteristics
Table 5: Transmitter Characteristics
Table 6: Receiver characteristics
Item Value (GSM900 / GSM1800)
Receive frequency range 925…960 MHz / 1805…1880 MHz
Transmit frequency range 880…915 MHz / 1710…1785 MHz
Duplex spacing 45 MHz / 95 MHz
Channel spacing 200 kHz
Number of RF channels 174 / 374
Power class 4 (2 W) / 1 (1 W)
Number of power levels 15 / 16
Item Value (GSM900 / GSM1800)
Type Direct conversion, nonlinear, FDMA/TDMA
VCO frequency range 3520…3660 MHz / 3420…3570 MHz
Output power 2 W / 1 W peak
Gain control range Min. 30 dB
Maximum phase error (RMS/peak) Max 5 deg. / 20 deg. peak
Item Value (GSM900 / GSM1800)
Type Direct conversion, linear, FDMA/TDMA
VCO frequency range 3700…3840 MHz / 3610…3760 MHz
Typical 3 dB bandwidth +/- 101 kHz
Sensitivity Min. –102 dBm (GSM1800 norm. cond. Only)
Total typical receiver voltage gain (from
antenna to RX ADC)
86 dB
Receiver output level (RF level –95 dBm) 230 mVpp, single-ended I/Q signals to RX ADCs
Typical AGC dynamic range 84 dB
Typical AGC step in LNA 30 dB
Usable input dynamic range -102…-10 dBm
Compensated gain variation in receiving band +/- 1.0 dB