Keysight N9000B - Page 256

3 Spectrum Analyzer Mode
3.2 Swept SA Measurement
Filter BW SCPI Example Displayed bandwidth of a filter with 1kHz –3dB
bandwidth
Noise :BAND:TYPE
NOIS
1.06 kHz
Impulse :BAND:TYPE IMP 1.48 kHz
See "More Information" on page 256
Remote Command
[:SENSe]:BANDwidth|BWIDth:TYPE DB3 | DB6 | IMPulse | NOISe
[:SENSe]:BANDwidth|BWIDth:TYPE?
Example
:BAND:TYPE NOIS
:BAND:TYPE?
Notes
DB3
–3 dB (Normal)
DB6
–6 dB
IMPulse
Impulse
NOISe
Noise
Dependencies Grayed-out and displays --- if the Flattop filter type is selected
When EMC Standard is set to CISPR or MIL, the RBW Filter BW control is grayed-out. This is because
RBW Filter BW is selected as appropriate for the filter and the standard, and not selected by this
control. Any attempt to set it otherwise generates an error
Preset "Auto Couple" on page 2017 selects the preset value
State Saved Saved in instrument state
Annotation The annotation under RBW in the bottom left of the screen shows the type of filter or bandwidth that is
being used. The following examples illustrate this:
–3 dB (Normal) filter BW: Res BW 300 Hz
–6 dB filter BW Res BW (–6 dB) 422 Hz
Noise filter BW Res BW (Noise) 317 Hz
Impulse filter BW Res BW (Impulse) 444 Hz
CISPR filter BW Res BW (CISPR) 200 Hz
MIL filter BW Res BW (MIL) 1 kHz
Flattop filter type Res BW (Flattop) 300 Hz
More Information
The instrument provides four ways of specifying the bandwidth of a Gaussian filter:
1.
The –3dB bandwidth of the filter
2.
The –6dB bandwidth of the filter
256 Spectrum Analyzer Mode User's &Programmer's Reference