T2-frame parameters, 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

Version

DVB-T2 version selection: 1.1.1, 1.2.1 or 1.3.1

Profile

DVB-T2 profile selection: Base or Lite

T2 Base Lite

T2 Base Lite flag to indicate that the T2-base profile parameters must be

consistent with the T2-lite profile restrictions.

NW ID

Network ID. Uniquely identifies the DVB-T2 network

T2 ID

T2 System ID. Uniquely identifies a T2 system within the DVB-T2 network

Cell ID

Cell ID. Uniquely identifies a geographic cell in a DVB-T2 network

7.4. T2-Frame Parameters
This group of parameters allows you to specify the DVB-T2 frame structure.

DVB-T2 frame related parameters

Parameter

Description

#Frames per superframe

The number of T2-frames in a super frame

#Subslices

The number of sub-slices per T2-frame for each RF channel

#Data syms

The number of data OFDM symbols per T2-frame, excluding P1 and P2

RBM validation

If checked, Receiver Buffer Model (RBM) validation is performed. In case

errors are detected, they are reported in the “Messages” tab.

Note that RMB validation uses some extra CPU time, therefore it can’t be

executed real-time for all parameter settings.

If the DVB-T2 parameter set is valid, this area also displays the derived frame information.

Parameter

Description

Optimum #subslices

The largest allowable sub-slicing value

Frame size

The total number of cells per T2-frame

Duration

The duration of a T2-frame in number of elementary periods

Bitrate

The total Transport Stream bitrate of the PLPs

L1 pre+post

The number of L1 signalling cells in a T2-frame

#Data cells

The number of data cells in a T2-frame

#Dummy cells

The number of dummy cells in a T2-frame

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