Tektronix RSA2200A, User Manual

Page: 248 / 354

Setting Views
3- 128
RSA2203A & RSA2208A User Manual
CCDF View Setting
The CCDF view displays the CCDF measurement in the Digital Demod mode
(digital modulation analysis, Option 21 only) and the Time mode (time analysis).
The horizontal axis indicates amplitude and the vertical axis (logarithmic scale)
indicates CCDF. Refer to page 3--46 for more information about the CCDF
measurement.
The Scale menu for the CCDF view contains the following controls
(see Figure 3--92):
Auto Scale. Sets the starting value and the scale of the vertical axis automatical-
ly to fit the waveform to the screen.
Horizontal Scale. Sets the range of the horizontal axis.
Horizontal Start.
Sets the minimum value (left edge) of the horizontal axis.
Vertical Stop. Sets the maximum value (top) of the vertical axis.
Range: Twice of Vertical Start value to 100% in a 1-2-5 sequence.
Vertical Start.
Sets the minimum value (bottom) of the vertical axis.
Range: 10
--9
to 1/2 of Vertical Stop value in a 1-2-5 sequence.
Full Scale. Sets the scale of the vertical axis to the default full-scale value.
Sub Grid. Time mode only. Determines whether to display the sub-grid.
Vertical Stop
Vertical Start
Horizontal Scale
Horizontal Start
Figure 3- 92: Setting the scale in CCDF view
View: Scale Menu