Agilent Technologies Signal Analyzer N9030a - Manual (Page 556)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
BW
[:SENSe]:FREQuency:SPAN:BANDwidth[:RESolution]:RATio:AUTO?
Example FREQ:SPAN:BAND:RAT 200 sets a ratio of 200:1, and turns off the auto coupling.
FREQ:SPAN:BAND:RAT:AUTO ON
FREQ:SPAN:BAND:RAT?
Notes The values shown in this table reflect the conditions after a Mode Preset.
Dependencies Grayed out when the EMC Standard is set to CISPR or MIL, since RBW is coupled to Center
Frequency rather than Span in this case.
If the grayed out key is pressed, an advisory message is generated. If the equivalent SCPI
command is sent, the command is acted upon, but it doesn’t affect the current measurement.
Preset 106
ON
State Saved Saved in instrument state
Min 2
Max 10000
Initial S/W Revision Prior to A.02.00
RBW Control
Selects the type/shape for the resolution bandwidth filters. Historically, the Res BW filters in
Agilent spectrum analyzers were Gaussian filters, specified using the –3 dB bandwidth of the
filter. That is, a 10 MHz Res BW filter was a Gaussian shape with its –3 dB points 10 MHz apart.
In the X-Series you can, using the Filter BW key, specify bandwidths other than the –3 dB
bandwidth (–6 dB, Noise, Impulse) for the width of the Gaussian filters. Furthermore, the Filter
BW
menu lets you choose between a Gaussian and Flat Top filter shape, for varying measurement
conditions.
Key Path BW
Dependencies The RBW Control key is grayed out if the EMC Standard is set to CISPR or MIL. In this case the
Filter Type is always Gaussian; the Filter BW is chosen as appropriate for the filter and the
standard.
Readback line [<filter type>] or, if Filter Type is Gaussian, [Gaussian,<filter BW>]
Initial S/W Revision Prior to A.02.00
Modified at S/W
Revision A.02.00
556 Remote Language Compatibility Measurement Application Reference