User manual

Chapter 2 Command System RIGOL
DSA700 Programming Guide 2-135
[:SENSe]:OBWidth:PERCent
Syntax
[:SENSe]:OBWidth:PERCent <real>
[:SENSe]:OBWidth:PERCent?
Description
Set the percentage (power ratio) the signal power takes up in the whole span power.
Query the power ratio of the occupied bandwidth measurement.
Parameter
Name
Type
Range
Default
<real> Consecutive Real Number 1 to 99.99 99
Explanation
This command is only available when the occupied bandwidth measurement is enabled.
The range (1 to 99.99) of <real> corresponds to the 1% to 99.99% of the instrument setting.
Return Format
The query returns the percentage in scientific notation.
Example
The command below sets the power ratio to 90%.
:SENSe:OBWidth:PERCent 90
The query below returns 9.000000E+01.
:SENSe:OBWidth:PERCent?
[:SENSe]:POWer:ARANge
Syntax
[:SENSe]:POWer:ARANge
Description
Execute auto range; namely adjust the amplitude-related parameters within the current span for easy
observation of the signal.
[:SENSe]:POWer:ASCale
Syntax
[:SENSe]:POWer:ASCale
Description
Execute auto scale; namely adjust the reference level and scale automatically to display the peak of the
signal in the upmost grid as far as possible for easy observation of the trace.