User manual

Chapter 2 Command System RIGOL
DSA700 Programming Guide 2-103
[:SENSe]:BANDwidth[:RESolution]
Syntax
[:SENSe]:BANDwidth[:RESolution] <freq>
[:SENSe]:BANDwidth[:RESolution]?
Description
Set the resolution bandwidth (RBW).
Query the resolution bandwidth.
Parameter
Name
Type
Range
Default
<freq> Discrete 100 Hz to 1 MHz, at 1-3-10 step 1 MHz
Explanation
When the detector type is Quasi-Peak (refer to the [:SENSe]:DETector[:FUNCtion] command) or the filter
type is EMI (refer to the
[:SENSe]:BANDwidth:EMIFilter:STATe command), the resolution bandwidth could
only be 200 Hz, 9 kHz or 120 kHz.
Return Format
The query returns the resolution bandwidth in integer and the unit is Hz.
Example
The command below sets the RBW to 1000 Hz.
:SENSe:BANDwidth:RESolution 1000
The query below returns 1000.
:SENSe:BANDwidth:RESolution?
[:SENSe]:BANDwidth[:RESolution]:AUTO
Syntax
[:SENSe]:BANDwidth[:RESolution]:AUTO OFF|ON|0|1
[:SENSe]:BANDwidth[:RESolution]:AUTO?
Description
Enable or disable the auto setting mode of RBW.
Query the status of the auto setting mode of RBW.
Parameter
Name
Type
Range
Default
-- Bool OFF|ON|0|1 ON|1
Explanation
In auto mode, the resolution bandwidth changes with the span (non-zero span).
Return Format
The query returns 0 or 1.
Example
The command below enables the auto setting mode of RBW.
:SENSe:BANDwidth:RESolution:AUTO ON or :SENSe:BANDwidth:RESolution:AUTO 1
The query below returns 1.
:SENSe:BANDwidth:RESolution:AUTO?