Comtech EF Data CDM-Qx Installation And Operation Manual page 71

CDM-Qx Satellite Modem
Front Panel Operation
(Config%Rx%Demod) – DEMODULATION SCHEME
Demodulation: BPSK QPSK 8-PSK
16-QAM
IMPORTANT
CASE
BPSK
QPSK
8-PSK
16-QAM
(Config%Rx%Code) – RX CODE RATE
Rx Code Rate: 5/16 21/44 1/2
2/3 3/4 7/8 17/18
IMPORTANT
CASE
5/16
21/44
1/2
2/3
3/4
7/8
17/18
(Config%Rx%Data) – RX DATA RATE
Rx Data Rate: 05000.000kbps
Sym:02500.000ksps
In QDI mode, these data rates are read-only! The data rate will be the sum of the
Note:
tributary rates for all ports. This will also show the calculated symbol rate and Nx64kbps
(where N=001 to 128).
(◄ ► 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.
RULES
Valid for all FEC types except TCM+R-S
Valid for all FEC types except TCM+R-S
Valid for TCM+R-S, TPC (Turbo) requires 8-PSK FAST option
Valid for Viterbi + R-S, TPC (Turbo) requires 16-QAM FAST option
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.
RULES
Valid for BPSK and Turbo
Valid for BPSK, QPSK and Turbo
Valid for BPSK, QPSK, Viterbi, Viterbi+R-S
Valid for TCM+R-S only (8-PSK)
Valid for QPSK, 8-PSK, and 16-QAM
Valid for QPSK, 8-PSK, and 16-QAM
Valid for QPSK, 8-PSK , and Turbo
(◄ ►)
5–23
Revision 6
MN/CDMQx.IOM