RIGOL DSA875 - Manual (Page 63)

Chapter 2 Front Panel Operation RIGOL
User’s Guide for DSA800 Series 2-11
Zoom In
Set the span to half of its current value. At this point, the signal on the screen is
zoomed in to observe signal details.
Zoom Out
Set the span to twice the current value. At this point, the signal on the screen is
zoomed out to gain more information about the signal.
Last Span
Set the span to the previous span setting.
X Scale (Only for DSA815)
Select the scale type of X-axis to Lin or Log. The default is Lin.
Key Points:
 In Log scale type, the frequency scale of X-axis is displayed in the logarithmic
form.
 When the scale type of X-axis is set to Log and any advanced measurement
function (including T-Power, ACP (Adjacent Channel Power), Chan Pwr
(Channel Power), OBW (Occupied Bandwidth), EBW (Emission Bandwidth),
C/N Ratio, Harmo Dist (Harmonic Distortion) and TOI (Third Order
Intermodulation)) is selected, the instrument switches the scale type of X-axis
to Lin automatically.