2-15
IM 703155-01E
Functional Description
2
2.6
Checking the Output Waveform
For the data of each waveform, you can check the output waveform by displaying the
waveform on the VB8300 screen. The waveform data stored on the internal hard disk or
CF card or USB memory that is installed and detected by the VB8300 can be displayed
in the following formats.
Waveform Display «For procedures, see section 8.1.»
Displays waveforms with the vertical and horizontal axes as voltage and time,
respectively.
Spectrum Display «For procedures, see section 8.2.»
Displays a spectrum with the vertical axis (Y) as voltage or power and the horizontal axis
(X) as frequency.
CCDF Display «For procedures, see section 8.3.»
Displays a semilogarithmic graph with the vertical axis (Y) as the accumulated value
(logarithmic scale) of the instantaneous power that exceeds the average power and the
horizontal axis (X) as the amplitude of the instantaneous power.
Constellation Display «For procedures, see section 8.4.»
Displays a diagram with the vertical axis (Y) as the amplitude of Q and the horizontal
axis (X) as the amplitude of I.
Eye Display «For procedures, see section 8.5.»
Displays an eye pattern with the vertical axis (Y) as the amplitude and the horizontal axis
(X) as the data length.
Marker Measurement «For procedures, see sections 8.1 to 8.5.»
The X-axis value and Y-axis value at the point where the marker and the displayed
waveform cross can be displayed.
Waveform Display Auxiliary Function «For the procedure, see section 8.6.»
Display Interpolation
Because the waveform data is digital data, a space may appear between data points
when the waveform is displayed. You can select the type of interpolation to fill in the
space.
Graticule
You can select the type of scale lines.
Displaying Waveform Labels
You can select whether to show or hide the labels for the displayed waveforms.
Displaying Scale Values
You can select whether to show or hide the scale values when displaying waveforms.
