Comtech EF Data CDM-Qx, Installation And Operation Manual

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CDM-Qx Satellite Modem Revision 6
Front Panel Operation MN/CDMQx.IOM
(Config
%
Rx
%
Demod) – DEMODULATION SCHEME
Demodulation: BPSK QPSK 8-PSK
16-QAM ( ◄ ► ENT)
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.
IMPORTANT
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 V R-S, TPC (Turbo) requires 16-QAM FAST option
(Config
%
Rx
%
Code) – RX CODE RATE
Rx Code Rate: 5/16 21/44 1/2
2/3 3/4 7/8 17/18 ( ◄ ► )
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.
IMPORTANT
CASE RULES
5/16 Valid for BPSK and Turbo
21/44 Valid for BPSK, QPSK and Turbo
1/2 Valid for BPSK, QPSK, 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
(Config
%
Rx
%
Data) – RX DATA RATE
Rx Data Rate: 05000.000kbps
Sym:02500.000ksps
Note: In QDI mode, these data rates are read-only
! The data rate will be the sum of the
tributary rates for all ports. This will also show the calculated symbol rate and Nx64kbps
(where N=001 to 128).
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