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4.3 MAJOR SUBASSEMBLIES FUNCTIONAL DESCRIPTION
4.3.1 DOWNCONVERTER RF MODULE (A2A1)
Model Number
Part Number
DNB-3B
148862-1
DNB-3B-1
148862-2
DNB-2B
148862-4
See frequency plans for input, output and LO frequencies.
Conversion Loss:
8 dB nominal
Input Return Loss:
20 dB/50 ohms minimum
Output Return Loss:
14 dB/50 ohms nominal
Power Output (1 dB Compression):
-8 dBm nominal
Image Rejection
80 dB minimum
LO Leakage at the Input
-80 dBm maximum
Input Signal Monitor:
-20 dBc nominal
DC Voltage:
+15 volts
Noise Figure:
9 dB nominal
LO Input Power Level
+10 dBm nominal
4.3.2 OUTPUT MODULE (A2A3)
Model Number
Part Number
DNB-3B
148868-1
DNB-3B-1
148868-1
DNB-2B
148868-2
Gain:
42 dB nominal
Noise Figure:
6 dB nominal
Input Return Loss:
10 dB nominal/50 Ohms
Output Return Loss:
20 dB minimum
Pout 1 dB:
+10 dBm minimum
Flatness:
0.5 dB/80 MHz
Level Control:
30 dB
DC Voltage:
+15 volts, +5 volts
