Comtech EF Data CDM-750 - Manual (Page 278)

CDM-750 Advanced High-Speed Trunking Modem Revision 2
Appendix D MN-CDM750
D–20
D.5.3 Calculating CnC Ratio and PSD Ratio from Satmaster
D.6 DoubleTalk Carrier-in-Carrier Specifications
See Sect. 1.4.8 DoubleTalk Carrier‐in‐Carrier (CnC) in Chapter 1. INTRODUCTION for
the complete table of CnC specifications.
D.7 Carrier-in-Carrier Summary
Comtech EF Data’s DoubleTalk Carrier‐in‐Carrier can provide significant savings in operational
expenses. The following considerations must be taken into account when evaluating CnC:
• CnC can only be used for full duplex links where the transmitting earth station is able to
receive itself.
• CnC can be used in both bandwidth‐limited and power‐limited situations.
• The maximum savings is generally achieved when the original link is symmetric in data
rate.