
Generation of a transport stream for DVB and realisation of a HF-modulated DVB-signal
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Exercise4
What happen if you change the guard interval, the frequency or the 8k value?
The image doesn’t appear in all of them.
Changing the frequency to 7MHz the spectrum is smaller and we can not receive right the constellation,
there are too many scattered symbols.
With all of these features, we can’t see the video signal, because is not possible to decode correctly.
Now we are going to inject some errors. To do so, click on the “Tools” button and select the “Error
injection…” option:
The following window will show up:
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