Anritsu MS2840A - SEM:SWE:RUL:FFT:RWID?

Chapter
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Native Device Message Details
4-256
SEM:SWE:RUL:FFT:RWID?
Spectrum Emission Mask Sweep Type Select Rules Real FFT Width Query
Function
This command queries the FFT width that is actually used for the
sweep/FFT switch rule during reference power measurement in the
Spectrum Emission Mask measurement.
Query
SEM:SWE:RUL:FFT:RWID?
Response
freq
FFT width
Range 40 kHz or 2 MHz
Resolution 1 Hz
Suffix code None. Value is returned in Hz units.
Details
This command is not available for MS269x Series.
Though the specified width is used as the FFT width on a priority basis,
it is changed automatically according to the SPAN/RBW/VBW
measurement conditions. This command queries the FFT width that is
actually used.
Example of Use
To query the FFT width that is actually used.
SEM:SWE:RUL:FFT:RWID?
> 40000