Comtech EF Data SDM-300A - Manual (Page 31)

SDM-300A Satellite Modem Revision 6
Introduction MN/SDM300A.IOM
1–5
The modem is used in Single Channel Per Carrier (SCPC) applications within the following
specifications:
• Modulation type of QPSK, BPSK, 8-PSK, or Offset QPSK
• Forward Error Correction of 1/2, 3/4, 7/8, 1/1 or 2/3
• Symbol rate of 4.8 ks/s to 2.5 Ms/s
The modem can be configured to add overhead/framing to the data. Available modulation types
include:
• Bi-Phase Shift Keying (BPSK)
• Quadrature Phase Shift Keying (QPSK)
• Offset Quadrature Phase Shift Keying (OQPSK)
• 8- Phase Shift Keying (8-PSK)