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CDM-Qx Satellite Modem Revision 5
Front Panel Operation MN/CDMQx.IOM
5–26
(ConfigRxDemod) – DEMODULATION SCHEME
All possible choices are presented at all times.
If an option is not installed (either Hardware, or FAST) or valid, the
◄ ► arrow keys will force the cursor to skip past the unavailable choice.
CASE RULES
BPSK Valid for all FEC types except TCM+R-S
QPSK Valid for all FEC types except TCM+R-S
8-PSK Valid for TCM+R-S, TPC (Turbo) requires 8-PSK FAST option
16-QAM Valid for Viterbi + R-S, TPC (Turbo) requires 16-QAM FAST option
(ConfigRxCode) – RX CODE RATE
All possible choices are presented at all times. If an option is not installed
(either Hardware, or FAST) or valid, the ◄ ► arrow keys will force the cursor
to skip past the unavailable choice.
CASE RULES
5/16 Valid for BPSK and Turbo
21/44 Valid for BPSK, QPSK and Turbo
1/2 Valid for BPSK, QPSK, Viterbi, Viterbi+R-S
2/3 Valid for TCM+R-S only (8-PSK)
3/4 Valid for QPSK, 8-PSK, and 16-QAM
7/8 Valid for QPSK, 8-PSK, and 16-QAM
17/18 Valid for QPSK, 8-PSK , and Turbo
Demodulation: BPSK QPSK 8
-
P
SK
16-QAM (◄ ► ENT)
Rx Code Rate: 5/16 21/44 1/2
2/3 3/4 7/8 17/18 (◄ ►)
IMPORTANT
IMPORTANT