R3267 Series Spectrum Analyzer Operation Manual (Vol.1)
3.3.25 UTIL Key (Utility)
3-79
NOTE:
1.
Display the opening ratio on the screen before per
forming the eye opening measurement.
2.
When the measurement window is displayed, the wave-
form used for the opening ratio measure ment is
enlarged vertically (in the amplitude direction) in the
measurement window.
Sampling Times
Specifies the number of times the waveform should be acquired
to calculate eye opening ratios.
XY Cursor
Display the XY Cursor menu.
XY Cursor ON/OFF
Toggles the X and Y cursor function on or off. While the eye
opening measurement is being performed, this cannot be toggled
off.
ON:
Displays the XY cursor.
OFF:
Turns the XY cursor off.
X Cursor Position Moves the X cursor. The opening ratio is calculated from the am-
plitudes located by the X cursor.
If the measurement window is displayed, the selected waveform
is zoomed in and displayed in the measurement window.
Y Cursor Position Moves the Y cursor. The opening ratio is calculated from the time
periods located by the Y cursor.
Y Cursor Auto Set
Calculates the amplitude average from the waveform data ac-
quired according to the Sample Time setting, and positions the Y
cursor at the amplitude average point.
Time Ratio Corr ON/OFF
Toggles the internal jitter compensation function in this instru-
ment on or off.
ON:
Compensates for the internal jitter of this instrument
and calculates the opening ratio along the time domain.
OFF:
Does not compensate for internal jitter.
Artificial Analog ON/OFF
Toggle the artificial analog display function on or off.
ON:
Up to 32 waveforms can be displayed in gray scale.
This allows you to see all the eye openings at one time.
OFF:
The artificial analog display function is turned off.