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Walkthrough: creating a dvb-t2 t2-mi file, Dtc-378 t2xpress – DekTec DTC-378 T2Xpress User Manual

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DTC-378 T2Xpress Manual

Essential Tools for Digital-TV Professionals

February 2015

DTC-378 T2Xpress

6. Walkthrough: Creating a DVB-T2 T2-MI File

This walkthrough will guide you through creating a DVB-T2 T2-MI file.

- Start T2Xpress application

T2Xpress can be started from the start menu or using the desktop shortcut.

After start-up all DVB-T2 parameters are set to default values.

- Set general DVB-T2 parameters
- Set T2-Frame parameters

Only the fields with light-blue background can be set. The other fields are derived from the

DVB-T2 parameters and are displayed if the parameter set is valid.

- Set Future Extension Frames (FEF) parameters (optional)
- Set Frequencies

Set the carrier frequency of the DVB-T2 RF channel. In case TFS is used, multiple frequencies have

to be set.

- Set PLP Parameters

Modify the PLP parameters and optionally add more PLPs.

To add more PLPs, right-click the mouse in the PLP parameter area and select: Insert PLP.

Alternatively, the Insert key can be used.

To remove a PLP, select the PLP then right-click the mouse and select: Remove PLP. The shortcut

key in this case is Delete.

To navigate through the PLP parameters, use the arrow keys. After selection you can press the

Enter key to modify the parameter. When done, press the Enter key for further navigation.

To modify the PLP’s source, double click on the PLP’s source parameter and select a Transport-

Stream file or the O151 PRBS test signal.

- Check Status Bar

The status bar should indicate: Parameter set is valid. If otherwise, correct the settings.

- Set Output File

Specify the name, location, size and format of the generated T2-MI file.

- Save T2Xpress-Settings

Optionally save the current T2Xpress settings to file by pressing the save button in the toolbar,

or selecting Save File in the menu bar.

- Generate T2-MI File

The generation of the output file can be started by pressing the Generate output button

in the

toolbar, or selecting Generate output in the menu bar.

After starting, the progress bar shows the percentage of work done. After completion, the result of

the generation is displayed.

- Play-out of T2-MI File

The generated T2-MI file can be processed by your application directly or it can be played out
through the StreamXpress with a DTA-115 PCI modulator or DTU-215 USB modulator.

To use the StreamXpress for play-out: Start the StreamXpress application, select an appropriate

modulator card, select modulation type T2MI and select the file to be played-out.