NHM–7
System Module & UI
PAMS Technical Documentation
Page 32
Issue 1 10/2001
Nokia Corporation
RF characteristics
Item
Values (E–GSM / 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
Transmitter characteristics
Item
Values (E–GSM/GSM1800)
Type
Direct conversion, nonlinear, FDMA/TDMA
LO 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
Receiver characteristics
Item
Values, E–GSM/GSM1800
Type
Direct conversion, Linear, FDMA/TDMA
LO frequencies
3700...3840 MHz / 3610...3760 MHz
Typical 3 dB bandwidth
+/– 91 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
83 dB
Accurate AGC control range
60 dB
Typical AGC step in LNA
30 dB GSM1800 25 dB EGSM
Usable input dynamic range
–102 ... –10 dBm
RSSI dynamic range
–110 ... –48 dBm
Compensated gain variation in receiving band
+/– 1.0 dB
Summary of Contents for NHM-7 series
Page 212: ......