220 Keysight M8000 Series of BER Test Solutions User Guide
4 User Interface - M8020A Display Views
Random Jitter (RJ)
The given pattern will be generated with the selected random jitter
parameters. Definable are thereby a low pass and high pass frequency
which limits the contained jitter components.
Measuring Random Jitter
As the waveform is completely pre-calculated it is not possible to generate
truly random jitter with this approach.
Similar to the periodic jitter case it is also true for random jitter that short
patterns will not lead to a realistic looking jitter histogram. If a better jitter
quality is desired it is therefore necessary to use a longer pattern. In case
the actual pattern needs to be short it is possible to have it repeat multiple
times in the pattern file and thereby obtain different edge deviations on a
single symbol.
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