Fracarro D-MATRIX-4S FTA Instructions D'emploi page 24

To use the USB functions, connect the USB drive to the D-MATRIX-4S FTA, and enter the configuration page from the homepage by clicking on
"USB", or from the menu INPUT  USB; the USB configuration page opens as shown in the figure:
Fig.4
Flag the ENABLE box and select the required file in SELECTED FILE. Click on SAVE to save the configuration.
If the file has never been used, the system analyses the format and bitrate to conduct an automatic configuration, creating a file with the same
name but an .FR extension, where the analysis result is stored for future use. The right section lock led should turn on green, showing that the
file is being successfully read. The transport run data are shown in the fields on the bottom right. During the pre-analysis, which can take a few
minutes if the file is very large, the "uploading" status is shown.
When a file is started and the "File OK" status is shown by the green led, the programs in the selected file are added to the list of input programs
and can also be added to the list of output programs.
5.1.3 OUTPUT MUX CONFIGURATION
Clicking the name of the MUX to program or the menu OUTPUT  MUX 1 / MUX 2 / MUX 3 / MUX 4 you can access the output MUX configuration
page modulated according to the DVB-T or DVB-C standards, and the relative parameters are shown as given in the following table.
Fig. 5
First of all specify the modulation standard to use (DVB-T o DVB-C). The mux output frequency can be specified directly as in MHZ, or the channel
to use can be specified according to the standard channelling foreseen in the various countries.
The output power can be set in dBuV, in the range foreseen by the technical specification or switch the MUX off by setting the level to OFF.
Below are certain parameters that depend on the modulation standard used. For DVB-T the following are specified:
FEC (1/2, 2/3, 3/4, 5/6, 7/8), guard interval (1/4,1/8,1/16,1/32), constellation (QPSK,16QAM and 64QAM), number of carriers (8K, 2K), spectrum
(normal or inverted). For DVB-C the following are specified:
Constellation (256QAM, 128QAM, 64QAM, 32QAM, 16QAM), symbol rate, spectrum (normal or inverted). The "Alarm overflow" box shows if a band
overflow has to be notified to the user by the led on the bottom or not.
NB: Click on save for the changes to become effective.
5.1.4 PROGRAM CONFIGURATION
From the menu PROGRAMS  MUX 1 / MUX 2 / MUX 3 / MUX 4 you can access the output program configuration page.
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