DekTec DTC-300 StreamXpress User Manual
Page 54
DTC-300-SP – StreamXpress
USER MANUAL
54
Variable
Type
Description
Details Diag
IIP PID
Field
Select the IIP (ISDB-T Information Packet) PID
#4
4
Partial
Reception
Tick box Set the partial Reception mode
#5
5
Emergency
Broadcasting
Tick box Set the Emergency Broadcasting flag on 1 segment
#6
6
#1 Broadcast Type:
The ISDB-T offers 3 types of broadcasting: Digital television using the 13 segments, 1-Segment
Radio and 3-Segment radio. Use this drop down to select the desired service type.
#2 Mode:
The ISDB-T offers 3 modes for broadcasting: mode 1, 2 and 3.
Mode 1 uses 108 carriers per segment
Mode 2 uses 216 carriers per segment
Mode 3 uses 432 carriers per segment.
Use this drop down to select the desired mode.
#3 Guard:
The guard interval is a time-redundant section of information that adds a copy of the latter portion
of a symbol to the symbol’s “front porch” with the aim of absorbing interference from multipath-
delayed waves.
The guard interval can be set to ¼, 1/8, 1/16, 1/32.
#4 IIP PID:
IIP stands for ISDB-T Information Packet. IIP are not passed to the modulator. IIPs contain an
important data table called TMCC (Transmission and Multiplex Configuration Control). Most
significantly, the TMCC data includes the precise timing parameters required to enable a modulator
to accurately synchronise with other modulators in a Single Frequency Network (SFN) and the
modulation parameters that the modulator should use for each hierarchical layer. This field allows
setting the PID used to transfer this data to the modulator.
1
2
3
4
5
6