DekTec DTC-378 T2Xpress - Manual (Page 12)

© 2009-2015 DekTec Digital Video BV Page 12/27 DTC-378 T2Xpress Manual
Essential Tools for Digital-TV Professionals February 2015
DTC-378 T2Xpress
7.5. Test Points
In case the output type I/Q samples is selected (I/Q Float32, I/Q Int16 or I/Q Text), this area allows
you to specify the test point data files to be generated.
Test Point parameters
The generation of test point data files is according to the document: “Generating DVB-T2 Reference
Streams”. Test points have to be separated by commas. The following test points are supported: 1,
3, 4, 6, 8, 9, 11, 12, 15, 16, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 50, 51
and 53.
7.6. FEF Parameters
This group of parameters allows you to specify the insertion of Future Extension Frames (FEFs).
FEF parameters
Parameter Description
Enable FEF If checked, Future Extension Frames (FEFs) are inserted;
If not checked, no FEFs are inserted and the parameters below have no
meaning
Type Specifies the FEF-type
S1 The S1-field value in the P1 signalling data
S2 The S2-field value in the P1 signalling data
Signal The generated signal during the FEF period can be Zero or a random test
signal made from 1k OFDM transformations of a PRBS signal
Length FEF-length; the length of a FEF-part in number of samples
Interval FEF-interval; the number of T2-frames between two FEF-parts