DekTec DTC-300 StreamXpress User Manual
Page 36
DTC-300-SP – StreamXpress
USER MANUAL
36
#4 Guard Interval:
The DVB-T modulation uses different length for the guard interval to allow echo cancelation. The
StreamXpress offers 4 different guard interval length: 1/32, 1/16, 1/8 and 1/4. The fraction number
represents the ratio of empty symbol versus useful symbol duration.
#5 Code Rate:
The DVB-T modulation offers multi FEC code rate. StreamXpress supports ½, 2/3, ¾, 5/6 7/8 code
rate.
#6 More:
StreamXpress offers more settings for DVB-T modulation. Pressing on the "more" button will open a
new window with extended settings. See below.
Variable
Type
Description
Details Diag
In Depth
Interleaver
Drop
down
This should be set to 0 for DVB-T
#7
7
Enable Cell
Identifier
Tick box Enable S40 and S47 Cell Identifier
#8
8
Cell Identifier Field
Enter the value of the Cell Identifier from 0 to 65535 when Cell
Identifier is enabled.
#9
9
This sub-menu allows modifying the TPS (Transmission Parameters Signalling) of DVB-T signal
header. Each bit in the header is identified as Sxx (i.e. S1 is the first bit of the TPS)
#7 In Depth Interleaver:
This field is always set to 0 for DVB-T.
#8 Enable Cell Identifier, S40 to S47:
7
8
9