Agilent Technologies 71501D Manual de usuario descargar pdf (Pagina 106)

Eye-Diagram Analyzer Reference

Displaying Traces

To Position and

Scale Each Trace

The selected trace can be positioned vertically on the display. This is accom-

plished using the REF LEV|POS softkey to enter both the reference position and

reference level. The reference position (POS) is entered as a percentage of the verti-

cal display. The top of the screen is 100%. The bottom of the screen is 0%. The ref-

erence level (REF LEV) is the amplitude value at the reference position.

To scale and position a trace, press:

Traces, AUTO-SCALE to automatically scale the selected trace.

SCALE to manually set the scale.

Use the front-panel knob or numeric keypad to change the displayed vertical

scaling.

REF LEV|POS POS

to move the trace’s reference position.

Rotate the front-panel knob to change the position.

REF LEV|POS LEV

to change the reference level at the trace’s reference

position.

Rotate the front-panel knob to change the level.

To Average Trace

The Traces menu’s average softkey presents a menu used for controlling trace

averaging. Trace averaging keeps a running average of the measurement val-

ues on each sweep. You can set the averaging count; its default value is 16.

Trace averaging is only applied to trace 1.

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Agilent Technologies 71501D Manual de usuario Pagina 106