Config, Tx) Data Rate - Comtech EF Data CDM-570 Installation And Operation Manual

CDM-570/570L Satellite Modem with Optional IP Module
Front Panel Operation
6.7.4

(CONFIG, TX) DATA RATE

Tx Dat Rate:5000.000kbps
3000.000ksym (◄ ►,▲ ▼,ENT)
The overall range of data rates is from 2.4 to 5000 kbps. The overall range of symbol
rates is from 4.8 to 3000 ksymbols/second. The minimum and maximum data rates are
dependent on modulation type and FEC encoder rate. If user changes the modulation or
FEC, and the currently selected data rate can no longer be supported, then the data rate
will be adjusted automatically, up or down, keeping the symbol rate constant. The
bottom line of the display shows the symbol rate, based on FEC type, modulation, FEC
IMPORTANT
Code Rate, and Data Rate. The valid ranges of data rate are shown in the table below.
If the current interface type is selected to be G.703, the data rate will be automatically set
to either 1544 kbps (T1) or 2048 kbps (E1).
FEC Type
None
None
Viterbi
Viterbi
Viterbi
Viterbi
Viterbi + RS
Viterbi + RS
Viterbi + RS
Viterbi + RS
Viterbi + RS
Viterbi + RS
TCM + RS
Turbo
Turbo
Turbo
Turbo
Turbo
Turbo
Turbo
Turbo
Turbo
Turbo
Turbo
Important Note: Where noted in the table above, if EDMAC framing is employed, the upper data rate
will be reduced by 5% for data rates up to 2.048 Mbps, and by 1.6% for data rates above 2.048 Mbps,
where EDMAC2 framing is used, or for Rate 21/44 BPSK/QPSK Turbo, or Rate 5/16 BPSK Turbo.
Modulation Code Rate
BPSK Uncoded
QPSK/OQPSK Uncoded
BPSK Rate 1/2
QPSK/OQPSK Rate 1/2
QPSK/OQPSK Rate 3/4
QPSK/OQPSK Rate 7/8
BPSK Rate 1/2
QPSK/OQPSK Rate 1/2
QPSK/OQPSK Rate 3/4
QPSK/OQPSK Rate 7/8
16-QAM Rate 3/4
16-QAM Rate 7/8
8-PSK Rate 2/3
BPSK Rate 5/16
BPSK Rate 21/44
QPSK/OQPSK Rate 21/44
QPSK/OQPSK Rate 3/4
QPSK/OQPSK Rate 7/8
QPSK/OQPSK Rate 0.95
8-PSK/8-QAM Rate 3/4
8-PSK/8-QAM Rate 7/8
8-PSK/8-QAM Rate 0.95
16-QAM Rate 3/4
16-QAM Rate 7/8
6–12
Data Rate Range
4.8 kbps to 3.000 Mbps
9.6 kbps to 5.000 Mbps
2.4 kbps to 1.500 Mbps
4.8 kbps to 3.000 Mbps
7.2 kbps to 4.500 Mbps
8.4 kbps to 5.000 Mbps
2.4 kbps to 1.363 Mbps
4.3 kbps to 2.727 Mbps
6.5 kbps to 4.091 Mbps
7.5 kbps to 4.666 Mbps
13.0 kbps to 4.000 Mbps
16.8 kbps to 4.666 Mbps
8.7 kbps to 4.400 Mbps
2.4 kbps to 0.937 Mbps
2.4 kbps to 1.430 Mbps
4.8 kbps to 2.860 Mbps
7.2 kbps to 4.500 Mbps
8.4 kbps to 5.000 Mbps
9.1 kbps to 5.000 Mbps
10.8 kbps to 5.000 Mbps
13.6 kbps to 5.000 Mbps
15.3 kbps to 5.000 Mbps
14.4 kbps to 5.000 Mbps
16.8 kbps to 5.000 Mbps
Revision 3
MN/CDM570L.IOM
EDMAC limited?
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
Yes – see note below
No
No
No
No
No