Anritsu MX183000A, Operation Manual, Page: 95 / 226

4.6 Jitter Tolerance Test
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per
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Table 4.6.6-1 Jitter Tolerance Table
Item Description
Meas. [UI] Displays measured results.
When Meas. Type is PAM4, the following are displayed:
•
Upper/Middle/Lower Eye measurement results
•
Total of three eye measurement results
Meas.Judge Pass: Pass, Fail: Fail
The pass/fail judgment is determined as fail if the jitter tolerance
point is below the Mask set.
If the modulation frequency is outside the frequency range set for the
Mask Data Table, the specification for Mask Data Table modulation
frequency closest to that modulation frequency is used as the
pass/fail judgment datum.
When Meas. Type is PAM4, pass/fail evaluation of the following is
displayed:
•
Upper/Middle/Lower Eye measurement
•
Total of three eye measurement
Estimate [UI] Displays the estimate for the error rate specified for BER for JTOL
Estimation.
Adjusted
R-Squared
Displays R
2
(free-adjusted coefficient of determination).
Estimeate.Judge Judges the estimate in the same way as Meas.Judge.
FL
The following message is displayed if the measurement result
matches the Upper Limit of fails due to the Lower Limit.
Upper Limit ≥ Measurement result: OVF
Lower Limit < Measurement result: UNF
Detail The detailed measurement results table for the measurement points
selected in Figure 4.6.6-1 is shown in a separate window. Figure
4.6.6-3 shows a typical window.
When Meas. Type is PAM4, Upper/Middle/Lower eye measurement
results are displayed. Figure 4.6.6-4 shows the image of how the
detailed measurement results are displayed.
Figure 4.6.6-3 Jitter Tolerance Table Detail