Instructions

RIGOL Chapter 5 Functions of the Front Panel of VSA
5-8 RSA3000E User Guide
AMPT
Sets the amplitude parameters of the analyzer. You can modify these parameters to
make the signals under test be displayed with minimal errors in the current window,
easy for you to observe.
Auto Scale
Sets the Y-axis reference level and the Y-axis scale value automatically to ensure that
the signal can be fully displayed for better observation of the trace.
Ref Value
Sets the Y-axis reference of the selected trace.
Remarks:
 When "Log Mag" or "Linear Mag" is selected for the trace format, the reference
level is located at the top of the Y axis; for other conditions, the reference level
is located in the middle of the Y axis.
 The reference level is displayed at the top line of the graticule.
Table 5-9 Reference Level
Parameter
Remarks
Default
0
Range
(-1e+12) to (1e+12)
Unit
refer to "Y Axis Unit"
Knob Step
1
Left/Right Arrow Key Step
Up/Down Arrow Key Step
10
Scale/Div
Sets the Y scale per division of the selected trace. The scale value is displayed at the
top line of the graticule.
Note: When you select a different trace format, the default value and unit of the
Y-axis scale are different.
Range
Sets the amplitude of the largest sinusoidal input signal without being clipped by the
IF ADC.