User guide

Table 31
S.No Parameter Description
10 Jitter RMS A standard deviation of the
crossing point histogram
with respect to BER
threshold.
Note: The Jitter RMS is
calculated according to
the BER Threshold set in
the BERT from Calculate
Measurement Parameters
of the View Tab.
11 Cross Voltage Crossing percentage is a
measure of the amplitude
of the crossing points
relative to the 1 level and 0
level.
Note: The Cross Voltage is
calculated according to
the BER Threshold set in
the BERT from Calculate
Measurement Parameters
of the View Tab.
12 Signal to Noise Ratio In signal-to-noise, the
"signal" is the information
power of the signal
indicated by the difference
between the ‘1’, and ‘0’
level. The "noise" is the
combined standard
deviations of the ‘1’ level
spread, and the ‘0’ level
spread.
13 Extiction Ratio Extinction ratio is the ratio
of the 1 level power and the
0 level power of an eye
diagram.
Note: The Extinction Ratio
is calculated using the
Dark Level and Conversion
Gain of the View Tab.
6 Advanced Analysis
340 Agilent J-BERT N4903B High-Performance Serial BERT