RIGOL Chapter 2 Functions of the Front Panel of GPSA
2-12 RSA3000E User Guide
Scale Type
Sets the scale type of the Y-axis to Lin or Log. By default, it is Log.
Remarks:
In Log scale type, the Y-axis denotes the logarithmic coordinate. The top line of
the graticule is the reference level, and the scale per division represents the
scale value. When the scale type is changed from Lin to Log, the unit of Y-axis
will automatically switch to the default unit (dBm) in Log scale type.
In Lin scale type, the Y-axis denotes the linear coordinate. The top line of the
graticule is the reference level, and 0 V is at the bottom of the graticule. Each
vertical division of the graticule represents one-tenth of the reference level. The
scale setting function is invalid. When the scale type is changed from Log to Lin,
the unit of Y-axis will automatically switch to the default unit (Volts) in Lin scale
type.
The scale type does not affect the unit of Y-axis.
If the "Normalize" function is enabled, "Log" is selected to be the scale type by
default, and the scale type is grayed out and disabled.
Scale/Div
Sets the logarithmic units per vertical grid division on the display. This function is only
available when the scale type is set to "Log".
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, and the arrow keys on the front panel
to modify this parameter; also you can modify it on the touchscreen. For details,
refer to descriptions in "Parameter Setting".
Table 2-9 Scale
scale ≥ 1, step = 1 dB
scale < 1, step = 0.1 dB
Left/Right Arrow Key Step
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