ISI Histogram

Meas. mode:
Jitter
Waveform type:
NRZ
PAM4
Amplitude Graphs Toolbar

The ISI Histogram shows Inter-Symbol Interference at actual measured signal levels. Small triangles on the graph's x-axis mark the location of the levels.

On the graph, repeatedly click the Cycle Level button to cycle through the waveform levels on which the histogram is based. To globally specify the level for all affected graphs:

  1. Click Measure > Configure Jitter Mode Measurements to open the dialog.
  2. In the dialog, select the Amplitude Measurements tab.
  3. In the Show Graphs Based on field, select the desired level. This setting effects to all Amplitude graphs except SER Amplitude Bathtub.