Agilent Technologies Signal Analyzer N9030a - Manual (Page 557)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
BW
Filter Type
Besides the familiar Gaussian filter shape, there are certain special filter types, such as Flat Top,
that are desirable under certain conditions. The Filter Type menu gives you control over these
types.
See "More Information" on page 557
Key Path BW, RBW Control
Remote Command [:SENSe]:BANDwidth|BWIDth:SHAPe GAUSsian|FLATtop
[:SENSe]:BANDwidth|BWIDth:SHAPe?
Example BAND:SHAP GAUS
Notes GAUSsian= Gaussian
FLATtop = Flattop
Dependencies When EMC Standard is set to CISPR or MIL, the Filter Type is always Gaussian. Any attempt to
set it to Flattop will give an error.
Preset Auto Couple chooses the preset value
State Saved Saved in instrument state
Readback line 1-of-N selection
Initial S/W Revision Prior to A.02.00
Modified at S/W
Revision A.02.00
More Information
Gaussian filters
When the Gaussian filter type is chosen, a set of 160 RBW filters are available whose shape is
approximately Gaussian. The actual bandwidths used to realize the X-Series’ Gaussian filters are
chosen to come as close as possible to a 24 step per decade series, within the limitations of the
digital IF.
For Gaussian filters, the annotation at the bottom of the screen shows the filter bandwidth type
(unless it is Normal). This will be shown parenthetically between the words “Res BW” and the
value, for example
Res BW 10.0 Hz (Normal bandwidth)
Res BW (Impulse) 14.8 Hz (Impulse bandwidth)
Flattop filters
Remote Language Compatibility Measurement Application Reference 557