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12.8
DVB-T/H
TUNER
Display of the measures of:
BERi:
error rate before Viterbi
•
BERo:
error rate after Viterbi
•
PER:
error rate after Reed Solomon (error rate packet)
•
MER:
modulation error rate
•
LKM:
noise margin (Link Margin)
•
BERx: 'bits' error rate
Ratio between the number of false bits / number of transmitted bits during the measurement time
PER: 'packets' error rate
Ratio between the number of false packets / number of transmitted packets during the measurement time
Recall: Under DVB-T/H, a packet is made of 204 octets; a packet is "false" if it includes more than 8 wrong
octets (correction by Reed Solomon coding).
Display of the value of Cell ID from the diffuser and specific to the emitter.
– MCT059 –
VITERBI
DEMODULATEUR
BERi
p.
REED
DECODAGE
SOLOMON
MPEG
BERo
PER
54
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