User`s guide

Total Jitter View
The Total Jitter View shows how the Pk-Pk grows over time. Pk-Pk of a histogram is not a meaningful metric
if not bounded in some way. There are various bounds that can be used, such as sample size or acquisition
time. The SIA-3000 defaults to a bound of 1e-12 level of probability. This means that TJ is the predicted Pk-
Pk of a histogram at some point in time. The point where the color changes to gray is the bound for the TJ
(this can be changed).
The Total Jitter View shows three lines. The vertical axis is the Total Jitter. The horizontal axis is elapsed
time. The highest line is the Total Jitter predicted from TailFit (See TailFit Theory, Appendix B). The other
two lines show the jitter for Short periods and Long periods.
For a detailed description of the Histogram Measurement Theory, refer to the Histogram Getting Started
Guide.
© WAVECREST Corporation 2005 Section 4 - GigaView
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