Comtech EF Data DMD-2050E Installation And Operation Manual page 116

DMD2050E Universal Satellite Modem
Carrier-in-Carrier link design involved trying different Modulation & FEC Code Rates to find the
optimal combination:
8-QAM, LDPC 2/3 with Carrier-in-Carrier
QPSK, LDPC 3/4 with Carrier-in-Carrier
QPSK, LDPC 2/3 with Carrier-in-Carrier
QPSK, LDPC 1/2 with Carrier-in-Carrier
MN-DMD2050E Revision 2
Theory of Operation
3–37