User Guide

PAMS
Technical Documentation
RAE–2
General Information
Page 1–17
Original 02/99
Main RF Characteristics
Item Values
Receive frequency range 935 ... 960 MHz
Transmit frequency range 890 ... 915 MHz
Duplex spacing 45 MHz
Channel spacing 200 kHz
Number of RF channels 124
Power class 4
Number of power levels 15
Transmitter characteristics
Item Values
Type Upconversion, nonlinear, FDMA/TDMA
Intermediate frequency ( phase modulated ) 116 MHz
LO frequency range 1006 ... 1031 MHz
Output power 2 W peak ( 33 dBm )
Power control range min. 5 ... 30 dBm
Maximum phase error ( RMS/peak ) max 5 deg./20 deg. peak
Receiver characteristics
Item Values
Type Linear, FDMA/TDMA
IF frequencies 1st 71 MHz, 2nd 13 MHz
LO frequencies 1st LO 1006 ... 1031 MHz, 2nd LO 58 MHz
Typical 1 dB bandwidth +/– 90 kHz
Sensitivity min. – 102 dBm , S/N >8 dB
Total typical receiver voltage gain ( from antenna
to RX ADC )
73 dB
Receiver output level ( RF level –95 dBm ) 50 mVpp ( typical balanced signal level of 13 MHz
IF in RF BB interface = input level to
RX ADCs )
Typical AGC range –17 ... +40 dB
Accurate AGC control range 57 dB
Typical AGC step in LNA –15 dB
Usable input dynamic range –102 ... –10 dBm
RSSI dynamic range –110 ... –46 dBm
AGC relative accuracy on channel ( accurate
range )
+/– 0.8 dB
Compensated gain variation in receiving band +/– 1.0 dB