Modulator Specifications; Digital Data Rate; Table C-2. Modulator Digital Data Rate - Comtech EF Data SDM-300A Installation And Operation Manual

Specifications
C.2

Modulator Specifications

C.2.1

Digital Data Rate

Refer to Table C-2.
Note: OQPSK used with Viterbi encoding is a user-option and can replace QPSK.
The digital data rate is selctable in 1 bit/s steps. The modem automatically calculates and
sets the symbol rate. Data rates entered that exceed the date arate or symbol rate
specification are rejectred at entry.
The symbol rate range is 4.8 kHz to 2.5 MHz.
Modulation
Type
BPSK 1/2
QPSK 1/2
QPSK 3/4
QPSK 7/8
OQPSK 1/2
OQPSK 3/4
OQPSK 7/8
8PSK 2/3
BPSK 1/2
QPSK 1/2
QPSK 3/4
QPSK 7/8
BPSK 1/2
QPSK 1/2
QPSK 3/4
QPSK 7/8
OQPSK 1/2
OQPSK 3/4
OQPSK 7/8
8PSK 2/3
BPSK 1/2
QPSK 1/2
QPSK 3/4
QPSK 7/8
C–4

Table C-2. Modulator Digital Data Rate

Encoding Type
Viterbi
Viterbi
Viterbi
Viterbi
Viterbi
Viterbi
Viterbi
Viterbi
Sequential
Sequential
Sequential
Sequential
Viterbi and Reed-Solomon
Viterbi and Reed-Solomon
Viterbi and Reed-Solomon
Viterbi and Reed-Solomon
Viterbi and Reed-Solomon
Viterbi and Reed-Solomon
Viterbi and Reed-Solomon
Viterbi and Reed-Solomon
Sequential and Reed-Solomon
Sequential and Reed-Solomon
Sequential and Reed-Solomon
Sequential and Reed-Solomon
SDM-300A Satellite Modem
Data Rate Range
2.4 kbit/s 1.25 Mbit/s
4.8 kbit/s 2.5 Mbit/s
7.2 kbit/s 3.75 Mbit/s
8.4 kbit/s 4.375 Mbit/s
4.8 kbit/s 2.5 Mbit/s
7.2 kbit/s 3.75 Mbit/s
8.4 kbit/s 4.375 Mbit/s
512 kbit/s 5.0 Mbit/s
2.4 kbit/s 1.25 Mbit/s
4.8 kbit/s 2.5 Mbit/s
7.2 kbit/s 3.75 Mbit/s
8.4 kbit/s 4.375 Mbit/s
2.4 kbit/s 1.138 Mbit/s
4.8 kbit/s 2.277 Mbit/s
7.2 kbit/s 3.416 Mbit/s
8.4 kbit/s 3.986 Mbit/s
4.8 kbit/s 2.277 Mbit/s
7.2 kbit/s 3.416 Mbit/s
8.4 kbit/s 3.986 Mbit/s
512 kbit/s 4.555 Mbit/s
2.4 kbit/s 1.138 Mbit/s
4.8 kbit/s 2.277 Mbit/s
7.2 kbit/s 3.416 Mbit/s
8.4 kbit/s 3.986 Mbit/s
Rev. 4