Comtech EF Data CDM-570A - Manual (Page 534)

CDM-570A/570AL Satellite Modem with Optional Packet Processor MN-CDM570A
Appendix G Revision 2
G–16
Step Task
3 Calculate change in Eb/No and verify against specification.
Example Link:
• Recorded Eb/No = 2.5 dB
• Change in Eb/No = 0.2 dB
• Eb/No Degradation (Spec.) at 1.2 dB PSD = 0.3 dB
• Modem performance is within spec
G.5 Operational References
G.5.1 Calculate Carrier-in-Carrier Link Budget
You must follow these steps to calculate the link budget for a Carrier-in-Carrier Link: E
b
/N
O
.
Step Task
1 Calculate the link budget for both carriers in the duplex link, with required CnC margin: