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

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

5.2.2.1.3.4 (CONFIG: Tx) Data (Data Rate)

Tx Dat Rate: 5000.000kbps
3000.000ksym (◄ ►,▲ ▼,ENT)
1. The overall range of data rates is from 2.4 to 9980 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 Code Rate, and Data Rate. The valid ranges of data rate are shown in
the table below.
2. 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).
3. *IMPORTANT: Where noted in the following table, 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.
FEC Type
None
Viterbi
Viterbi + RS
TCM + RS
Turbo
Modulation Code Rate
BPSK Uncoded
QPSK/OQPSK Uncoded
BPSK Rate 1/2
Rate 1/2
QPSK/OQPSK Rate 3/4
Rate 7/8
BPSK Rate 1/2
Rate 1/2
QPSK/OQPSK Rate 3/4
Rate 7/8
Rate 3/4
16-QAM
Rate 7/8
8-PSK Rate 2/3
Rate 5/16
BPSK
Rate 21/44
Rate 21/44
Rate 3/4
QPSK/OQPSK
Rate 7/8
Rate 0.95
Rate 3/4
Rate 7/8
8-PSK/8-QAM
Rate 0.95
Rate 3/4
16-QAM
Rate 7/8
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 5.250 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 5.250 Mbps
9.1 kbps to 5.666 Mbps
10.8 kbps to 6.750 Mbps
13.6 kbps to 7.875 Mbps
15.3 kbps to 8.500 Mbps
14.4 kbps to 9.000 Mbps
16.8 kbps to 9.980 Mbps
5–15
Revision 12
MN/CDM570L.IOM
EDMAC limited?
* Yes – See preceding
IMPORTANT note
No