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12.3 Precorrection
Add a precorrection profile by expanding the left window pane and select either linear gain or linear group delay. The
distortion specification is defined as coordinates in the edit pane on the right-hand side. The entered coordinates are
visualized in a graph for verification. Both types of precorrection are symmetric filters, hence the channel response only
needs to be defined from the center frequency to the highest frequency component. The channel response can be
defined independent of the actual bandwidth in use.
12.4 Adding services to a mux
To add a new output, expand the left pane in the Modulator Settings tab and select the sources to add. Select an output
mux and click the add button at the bottom of the pane. Selecting a service row instead of a TS row enables the “Replace
Content” button that can remove an existing service and add the new service in one operation. To discard non-saved
changes, close the application.
12.4.1 Supported mapping modes
The action button which maps the selected source material to the output will change depending on the type of data to be
mapped, and depending on the destination of the content.
The system offers the following mapping modes.
Source
Action
Mapping action
Service
Add to existing
output
With a service to transport mapping, select destination modulator row
and use the Add action button, then the service will be added to the
selected output transport stream.
