Comtech EF Data CDM-760 - Manual (Page 230)

Ethernet-based Remote Product Management Revision 2
CDM-760 Advanced High-Speed Trunking Modem MN-CDM760
7–72
In this format, the graph depicts changes in ModCod that occur when the reported Remote
Es/No meets the Es/No trigger points to switch up or down.
Note that the Remote Es/No is the “reported” Es/No of the far end modem as seen by the
local modem. This reported Remote Es/No data can be 250ms to 400ms old as this is the
amount of time it can take for this data to traverse the satellite link for processing by the
local modem.
When more than one ModCod is used in the smallest interval period allowable by the graph,
the most common ModCod used in that time interval is displayed.
• The Tx Capacity Configuration Parameters graph provides a graphical representation for
some of the common configuration settings that can affect user data rate, and typically do
not change:
o
Pilots On or Off
o
Normal Block or Short Block
o
NetSpec (Network Specification) – DVB-S2-EB2, DVB-S2-EB1, or DVB-S2
o
Symbol Rate
These parameters are shown to provide you with a more complete representation of user
capacity, when looked at in conjunction with the other graphs provided on this page.