Agilent Technologies E4406A VSA manual Spectrum—Pre-FFTBW Filter Type, Spectrum—ResolutionBW

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SENSe Subsystem

combinations of these settings that are not valid.

Factory Preset
and *RST:	1.55 MHz
	1.25 MHz for cdmaOne
	155.0 kHz, for iDEN mode
Range:	1 Hz to 10.0 MHz
Remarks:	To use this command, the appropriate mode should be
	selected with INSTrument:SELect.

Spectrum—Pre-FFT BW Filter Type

[:SENSe]:SPECtrum:BANDwidthBWIDth:PFFT:TYPE FLATGAUSsian

[:SENSe]:SPECtrum:BANDwidthBWIDth:PFFT:TYPE?

Select the type of pre-FFT filter that is used. This is an advanced control that normally does not need to be changed.

Flat top (FLAT)- a filter with a flat amplitude response, which provides the best amplitude accuracy.

GAUSsian - a filter with Gaussian characteristics, which provides the best pulse response.

Factory Preset
and *RST:	FLAT
Remarks:	To use this command, the appropriate mode should be
	selected with INSTrument:SELect.

Spectrum—Resolution BW

[:SENSe]:SPECtrum:BANDwidthBWIDth[:RESolution] <freq>

[:SENSe]:SPECtrum:BANDwidthBWIDth[:RESolution]?

Set the resolution bandwidth for the FFT. This is the bandwidth used for resolving the FFT measurement. It is not the pre-FFT bandwidth. This value is ignored if the function is auto-coupled.

Frequency span, resolution bandwidth, and the pre-FFT bandwidth settings are normally coupled. If you are not auto-coupled, there can be combinations of these settings that are not valid.

Factory Preset
and *RST:	20.0 kHz
	250.0 Hz, for iDEN mode
Range:	0.10 Hz to 3.0 MHz

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