User Guide

PAMS
Technical Documentation
NSB–1
System Module
Page 3 – 37
Original 06/98
RF Block Specifications
DCS1900 Receive Interstage Filter
Parameter Min. Typ. Max. Unit / notes
Passband 1930...1990 MHz
Insertion loss in passband 2.4 dB
Maximum Input power 1.0 W
First Mixer (UHF) in CRFU2a
Parameter Minimum Typical /
Nominal
Maximum Unit / Notes
Input RF frequency 1805–1990 MHz
Output IF frequency 487 MHz
Power gain
see Note 1
5.0 7.5 dB / PCN
LO = 1318–1393
MHz
Power gain
see Note 1
5.5 7.5 dB / DCS
LO = 1443–1503
MHz
NF, SSB 11 dB
IIP3 –2 dBm
Input compression (1dB) –10 dBm
1/2 IF spurious tbd dBm
LO–power in RF–input –25 dBm
RF–IF isolation 20 dB