Figure 3-4A. Configuration Demodulator Menu With G.703 Data Interface - Comtech EF Data SDM-2020 Installation And Operation Manual

Satellite demodulator
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SDM-2020 Satellite Demodulator
SDM-2020 DEMOD
VER: X.X.X
RX-DR QPSK 3/4
(Data Rate)
Code Rate
Data Rate
QPSK 1/2
6.312 Mbit/s
QPSK 3/4
8.448 Mbit/s
QPSK 7/8
32.064 Mbit/s
QPSK 5/6
34.368 Mbit/s
QPSK 2/3
44.736 Mbit/s
8PSK 2/3
51.840 Mbit/s
8PSK 5/6
8PSK 8/9
(with G.703
16QAM 3/4
Interface)
16QAM 7/8
LNB POWER
ON
OFF
(L-Band RF only)
Eb/No THRESHOLD
NONE
3.0 tO 16.0, in 0.1 dB steps
REACQUISITION
0 to 1,000,000 Hz

Figure 3-4A. Configuration Demodulator Menu with G.703 Data Interface

Rev. 3
FUNCTION SELECT
CONFIGURATION
CONFIGURATION
DEMODULATOR
RX-SR QPSK 3/4
(Symbol rate)
QPSK 1/2, 3/4, 7/8, 2/3, 5/6
8PSK 2/3, 5/6, 8/9
16QAM 3/4, 16QAM 7/8
1 sym/s steps limited by code
rate and interface.
ENERGY DISPERSAL
ON
OFF
Eb/No THRESH ALM
ON
OFF
RF INPUT SELECT
1, 2, 3, 4
With 4-Channel RF Card
Installed.
RX-IF FREQUENCY
950 to 1750 MHz
(in 2.5 kHz steps)
(L-Band only)
RS DECODER
Eb/No THRESHOLD
CORR ON
CORR OFF
(where x = 3 to 8)
SWEEP RANGE
0 to 1,000,000 Hz
(L-Band only)
Key:
ACCESS TO
CONDITIONAL OR
SUBMENU
OPTION-DEPENDENT
Operation
RX-IF FREQUENCY
50 to 180 MHz
(in 2.5 kHz steps)
(Non L-Band only)
NONE
1.0 E- x
SWEEP RANGE
0 to 120,000 Hz
(70/140 MHz)
Parameter Information
3–9

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