Comtech EF Data HPCST-5000 - Manual (Page 175)

High-Power C-Band Satellite Terminal Configurations
Rev. 0 A–5
A.1.3 Down Converter
The function of the down converter is to convert the C-Band signal from the LNA to a
140 MHz IF signal for use in the modem.
Refer to Figure A-4 for a functional block diagram of the down converter.
A.1.3.1 Specifications
Refer to Table A-3 for specifications.
Table A-3. Down Converter Specifications
Down Converter
Input Frequency 3620.0 to 4200.0 MHz
Input Connector SMA Female
Input Impedance 50
#
Input VSWR 1:5:1
Output Frequency 140.0 MHz, ! 36.0 MHz
Output Connector SMA Female
Output VSWR 1:3:1
1.0 dB Compression +17 dBm
IF Synthesizer Input
Frequency 4592.5 to 5172.5 MHz
Level +8.0 dBm
Connector SMA Female
Return Loss 14.0 dB
Impedance 50
#
IF Local Oscillator Input
Frequency 1112.5 MHz
Level +8.0 dBm
Connector SMA Female
Return Loss 14.0 dB
Impedance 50
#