SHAPING THE FUTURE OF SATELLITE COMMUNICATIONS
9.4.11 Link margin est.
Link margin estimation for each of the DVB-S2 streams in the received carrier. This
monitoring parameter indicates how much the Es/No is above the decoding
threshold. It is a measure for the number of dBs of fading that is possible on the
link before the demodulator is not able to decode the received signal anymore.
9.4.12 Link margin clipping
The link margin clipping will indicate “<” or “>” when the link margin value is too low
or too high to be accurately determined. In case it is too low, the link margin might
be too low in order for the detector to operate correctly. In case it is too high, there
might not be enough decoding errors (for example in channel with high link margin)
in order for the detector to display a meaningful value.
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