Instructions

RIGOL Chapter 4 Functions of the Front Panel of EMI
4-8 RSA3000E User Guide
Scale/Div
Sets the unit per division in the vertical axis.
Remarks:
 The amplitude range to be displayed can be adjusted by setting the scale.
 The range of the signal amplitude that can be displayed is as follows:
Minimum: reference level – 10 × current scale value
Maximum: reference level
 You can use the numeric keys, the knob, or arrow keys to modify this parameter;
you can also use the touch screen to modify the parameter.
Table 4-8 Scale/Div
Parameter
Remarks
Default
10 dB
Range
0.1 dB to 20 dB
Unit
dB
Knob Step
scale ≥ 1, step = 1 dB
scale < 1, step = 0.1 dB
Left/Right Arrow Key Step
Up/Down Arrow Key Step
at 1-2-5 step
Ref Offset
Adds an offset value to the reference level to compensate for gains or losses
generated between the DUT and the analyzer input.
Remarks:
 The offset value does not affect the trace position, but will modify the reference
level readout and the marker amplitude readout.
 You can use the numeric keys, the knob, or arrow keys to modify this parameter;
you can also use the touch screen to modify the parameter.
Table 4-9 Reference Level Offset
Parameter
Remarks
Default
0 dB
Range
-300 dB to 300 dB
Unit
dB
Knob Step
level offset ≥ 1 or level offset ≤ -1: step = 1 dB;
-1 < level offset < 1, step = 0.1 dB
Left/Right Arrow Key Step
Up/Down Arrow Key Step
5 dB