Agilent Technologies Signal Analyzer N9030a - Manual (Page 558)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
BW
When the Flattop filter type is chosen, a new set of 134 RBW hardware settings are available.
These settings realize filters that are approximately rectangular in shape. When this shape is
chosen the filter bandwidth options are irrelevant and therefore unavailable.
The annotation at the bottom of the screen will show that the Flattop shape is being used, for
example:
Res BW (Flattop) 10 Hz
Gaussian
Selects the Gaussian filter type. There are 160 of these RBWs. They are arranged in a 24-per-
decade sequence from 1 Hz through 3 MHz, plus the 4, 5, 6 and 8 MHz settings.
Key Path BW, RBW Control, Filter Type
Example BAND:SHAP GAUS
Notes Parameter is GAUSsian. See remote command in section "Filter Type " on page 557 .
Readback Gaussian
Initial S/W Revision Prior to A.02.00
Flattop
Selects the flat top filter type
Key Path BW, RBW Control, Filter Type
Example BAND:SHAP FLAT
Readback Flattop
Initial S/W Revision Prior to A.02.00
Filter BW
When using the Gaussian filters for certain types of applications it can be useful to be able to
specify the filter width using points other than the –3 dB points. The Filter BW function allows
you to pick the filter based on its –3 dB (Normal) bandwidth, its –6 dB bandwidth, its Noise
bandwidth, or its Impulse bandwidth.Note that in all four cases the –3 dB bandwidth is the same.
The filter does not change, but the way you specify it changes.
See "More Information" on page 559
Key Path BW, RBW Control
558 Remote Language Compatibility Measurement Application Reference