173
IOF masks
3.125 Gb/s 1.24416 Gb/s
PCI–Express masks
None PCI–Express
Transm 2.5 Gb/s
PCI–Express Recv
2.5 Gb/s
Mask Display Control Window
To Use
Click the On/Off control to turn the mask display on or off. Click the Config
control to activate the Mask Configuration Display control window.
Behavior
When the On/Off control is on, the mask is displayed on the graticule. When
the On/Off control is off, the mask is not displayed. Clicking the Config
control will replace the Mask Setup control window with the Mask
Configuration Display control window.
Mask Alignment Control Window
To Use
Click the Autoset control to perform an
autoset on the signal. Click the Autofit
control to turn the minimize hits function on
or off. Click the Config control to access
the Autofit or Autoset Configuration control
window.
Behavior
Clicking the Autoset control causes the instrument to automatically align the mask based on the
characteristics of the input signal. This function is done once, and that setting is not changed until
you run the autoset command again or until you change any settings. This is the same as pushing
the front-panel Autoset control.
When Autofit is used, the signal is aligned within the mask to minimize the number of hits on each
acquisition. Settings may change after each acquisition when autofit is used.
Note
The interaction between Autofit and Persistence can affect the display of persistence data. Autofit
moves the waveform vertically and/or horizontally to reduce the number of hits within a given
mask. If either infinite or variable persistence is enabled, these movements will clear any
persistence data. If Autofit makes frequent adjustments, there can be little or no persistence data.
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