Comtech EF Data CDM-760 - Manual (Page 16)

Table of Contents Revision 2
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760 / CD-CDM760
xii
G.5.3.2.2 Monitor ACM Performance and Statistics .............................................................................. G–25
G.5.4 ACM Operation Using the CDM-760 Serial Remote Control Interface ................................................. G–29
G.5.4.1 CDM-760 Typical Serial Remote Control Overview ...................................................................... G–29
G.5.4.2 ACM Configuration and Operation Using Serial Remote Control Commands/Queries ............... G–30
G.6 ACM Summary of Specifications .......................................................................................................... G–31
APPENDIX H. CARRIER ID (DVB-CID METACARRIER®) ....................................................... H–1
H.1 Overview ............................................................................................................................................... H–1
H.1.1 About MetaCarrier .................................................................................................................................. H–1
H.1.2 Functional Description ............................................................................................................................ H–2
H.2 CDM-760 Carrier ID Operation .............................................................................................................. H–3
H.2.1 CDM-760 Operational Overview ............................................................................................................. H–3
H.2.2 CDM-760 CID Configuration – Front Panel Operation ............................................................................ H–4
H.2.3 CDM-760 CID Configuration – HTTP (Web Server) Interface .................................................................. H–7
H.2.4 CDM-760 CID Configuration – Serial Remote Control ........................................................................... H–10
APPENDIX J. DOUBLETALK CARRIER-IN-CARRIER (CNC) OPTION....................................... J–1
J.1 Overview ................................................................................................................................................ J–1
J.1.1 What is DoubleTalk Carrier-in-Carrier? .................................................................................................... J–1
J.2 Application Requirements ...................................................................................................................... J–2
J.3 Operational Details ................................................................................................................................ J–4
J.4 System Functionality and Operational Considerations ........................................................................... J–4
J.4.1 DoubleTalk Carrier-in-Carrier Cancellation Process ................................................................................. J–7
J.4.2 Margin Requirements .............................................................................................................................. J–8
J.4.3 Carrier-in-Carrier Latency ......................................................................................................................... J–8
J.4.4 Carrier-in-Carrier and Adaptive Coding and Modulation (ACM) .............................................................. J–8
J.4.5 Carrier-in-Carrier Link Design ................................................................................................................... J–9
J.4.6 Symmetric Data Rate Link ........................................................................................................................ J–9
J.4.6.1 Asymmetric Data Rate Link ........................................................................................................... J–11
J.4.6.2 Power Limited Links ....................................................................................................................... J–12
J.4.7 Commissioning and Deploying Carrier-in-Carrier................................................................................... J–14
J.5 Operational References ........................................................................................................................ J–15
J.5.1 Calculating a Carrier-in-Carrier Link Budget ........................................................................................... J–15
J.5.2 Estimating / Calculating CnC Ratio ......................................................................................................... J–16
J.5.2.1 Estimating CnC Ratio from LST / EIRP ............................................................................................ J–16
J.5.2.2 Calculating CnC Ratio from Carrier to Noise Ratio (C/N) on a Spectrum Analyzer ........................ J–17
J.5.3 Calculating CnC Ratio and PSD Ratio from Satmaster ............................................................................ J–18
J.6 DoubleTalk Carrier-in-Carrier Specifications ......................................................................................... J–18
J.7 Carrier-in-Carrier Summary .................................................................................................................. J–18
J.8 Glossary ............................................................................................................................................... J–19