:WMEMory:EYE:WINDow:METHod

:WMEMory EYE Commands

Command Syntax

:WMEMoryN:EYE:WINDow:METHod {EOPening | CLOCk}

Where N identifies one of eight {1:8} possible waveform memories. For example, :WMEMory4.

Query Syntax

:WMEMoryN:EYE:WINDow:METHod?

Description

MEASUREMENTS AFFECTED

Infiniium uses the eye boundaries during these measurements:

  • Eye Amplitude
  • Crossing %
  • Duty-Cycle Distortion
  • Eye Height
  • Signal to Noise Ratio
  • One Level
  • Zero Level

This command specifies how the eye window used for measurements is determined:

  • EOPening — Measures within an eye window defined by left and right opening locations.

    Use the :WMEMory:EYE:WINDow:LEFT and :WMEMory:EYE:WINDow:RIGHt commands to specify the left and right opening location values. The default values are 40% (left) and 60% (right) which identifies the central 20% of symbol period.

  • CLOCk — Measures within an eye window that is a width percentage at the location of the recovered clock edge.

    Use the :WMEMory:EYE:WINDow:WIDTh command to specify the width percentage value.

This command is equivalent to the settings in the Eye tab of the Configure Measurements dialog box.