DekTec DTC-378 T2Xpress - Manual (Page 15)

© 2009-2015 DekTec Digital Video BV Page 15/27 DTC-378 T2Xpress Manual
Essential Tools for Digital-TV Professionals February 2015
DTC-378 T2Xpress
- RMS
The Root Mean Square (RMS) of the complex samples. This value should be set as large as
possible to have the largest SNR, but small enough to avoid saturation. When a DekTec card is
used for play-out of the I/Q samples, the value 5000 is a good value.
7.9.2. T2-MI File Output settings
In case the output type T2-MI file is selected (T2MI TS188), this area allows the selection of the
location and the base name of the generated T2-MI file. After specifying the base name of the file,
T2Xpress adds suffices to create unique output files.
T2-MI file settings
- #Superframes
The number of super frames to be generated. The corresponding file length and size are
displayed.
- Encode FEF
If checked outputs a FEF part composite packet with the required subpart; otherwise, only
outputs a FEF part NULL packet when FEF is enabled.
- TS rate
The rate of the output Transport Stream. Null packets are added to the stream to keep the rate
constant. When VBR (0) is selected, no null packets are added to the stream.
- Data PID
The PID of the Transport Stream packets carrying the T2-MI data.
- PMT PID
The PID of the PMT-table that refers to the T2-MI data stream. If a PMT PID is specified a PAT-
table is also added to the stream. If None (-1) is selected, no PAT-table and no PMT-table are
added to the stream.
- PCR PID
The PID of Transport-Packets carrying the PCR samples. PCR-samples can be added to the T2-MI
stream to make the play-out and modulator synchronisation (bitrate estimation) easier. If None (-
1) is selected, no PCR-samples are added to the stream.
- Timestamps
The DVB-T2 timestamps in the T2-MI stream: None, Relative or Absolute.