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FIELD METERS MCT 080 / 081 / 082 / 085 USER MANUAL
10.10 J83B (MCNS)
Display of the measures of:
BERo:
error rate before Reed Solomon
PER:
error rate after Reed Solomon (error rate packet)
MER:
modulation error rate
LKM:
Noise margin (Link Margin)
BERo:
error rate 'bits'
Ratio between the number of false bits / number of transmitted bits during the measurement time
PER:
error rate 'packets'
Ratio between the number of false packets / number of transmitted packets during the
measurement time
Recall: Under J83-B, a packet is made of 188 bytes; a packet is "false" if it includes more than 8 wrong bytes
(correction by Reed Solomon coding).
TUNER
DEMODULATOR
BERo
REED
DECODING
SOLOMON
MPEG
PER
p.
60
Constellation
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