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The traditional link was based on QPSK TPC 3/4 and required 0.96 MHz of leased BW. The LST
summary for the traditional link is shown in Figure F-7.
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
2
LST is Intelsat's Lease Transmission Plan Program.
Appendix F
Figure F-7. Symmetric Data Rate Traditional Link
F–11
CDM-425 Advanced Satellite Modem
MN-CDM-425
Revision 0
2
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