DekTec DTC-382 TmmXpress - Manual (Page 11)

© 2013 - 2014 DekTec Digital Video BV Page 11/12 DTC-382 TmmXpress Manual
Essential Tools for Digital-TV Professionals April 2014
DTC-382 TmmXpress
To navigate through the TS 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.
7.6.2. Layer Parameters
Each dark coloured row below the TS parameters specifies the parameters for the hierarchical
layers.
Layer parameter Description
Layer Specifies the layer: A, B or C
#Segments The number of segments for this layer: 0 … 13
Modulation Modulation type used for this layer: DQPSK, QPSK, 16-QAM or 64-QAM
Code rate Code rate used for this layer: 1/2, 2/3, 3/4, 5/6 or 7/8
Time Intlv Time Interleaving length
Rate (bps) Displays the bitrate
Note: if one of the sources is using TMCC-inform all parameters are fixed.
To navigate through the layer 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.
7.7. Channel Fading
The channel-fading tab allows you to specify the parameters for the channel simulator:
- White noise
- Reflections (multipath echo’s)
- Doppler effects because of a moving receiver
7.7.1. Channel Simulator
The Channel-Simulator group contains the overall enable box.
If checked, channel simulation is enabled and noise and fading-path parameters can be specified. If
unchecked, no channel simulation is applied.
The File Open button enables you to load a previously saved set of channel-simulation settings.
The File Save button allows you to save the current settings.