Agilent Technologies E4406A VSA manual Spectrum— Select Pre-FFTBandwidth, Spectrum—Pre-FFTBW

Language Reference

SENSe Subsystem

Spectrum— Select Pre-FFT Bandwidth

[:SENSe]:SPECtrum:BANDwidthBWIDth:IF:AUTO OFFON01

[:SENSe]:SPECtrum:BANDwidthBWIDth:IF:AUTO?

Select auto or manual control of the pre-FFT BW.

Factory Preset
and *RST:	AUTO, 1.55 MHz

Front Panel Access: Measure, Spectrum, Meas Setup, More, Advanced, Pre-FFT BW.

Spectrum — IF Flatness Corrections

[:SENSe]:SPECtrum:BANDwidthBWIDth:IF:FLATness OFFON01

[:SENSe]:SPECtrum:BANDwidthBWIDth:IF:FLATness?

Turns IF flatness corrections on and off.

Factory Preset
and *RST:	ON

Front Panel Access: Measure, Spectrum, Meas Setup, More, Advanced,

Pre-FFT BW

Spectrum—Pre-ADC Bandpass Filter

[:SENSe]:SPECtrum:BANDwidthBWIDth:PADC OFFON01

[:SENSe]:SPECtrum:BANDwidthBWIDth:PADC?

Turn the pre-ADC bandpass filter on or off. This is an advanced control that normally does not need to be changed.

Remarks:	To use this command, the appropriate mode should be
	selected with INSTrument:SELect.

Spectrum—Pre-FFT BW

[:SENSe]:SPECtrum:BANDwidthBWIDth:PFFT[:SIZE] <freq>

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

Set the pre-FFT bandwidth. This is an advanced control that normally does not need to be changed.

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

350 Chapter 5