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Chapter 5 355
Language Reference
SENSe Subsystem
Range: 8 to 1,048,576
Remarks: To use this command, the appropriate mode should be
selected with INSTrument:SELect.
History: Short form changed from LENgth to LENGth, A.03.00
Spectrum—FFT Window
[:SENSe]:SPECtrum:FFT:WINDow[:TYPE]BH4Tap|BLACkman|
FLATtop|GAUSsian|HAMMing|HANNing|KB70|KB90|KB110|UNIForm
[:SENSe]:SPECtrum:FFT:WINDow[:TYPE]?
Select the FFT window type.
BH4Tap - Blackman Harris with 4 taps
BLACkman - Blackman
FLATtop - flat top, the default (for high amplitude accuracy)
GAUSsian - Gaussian with alpha of 3.5
HAMMing - Hamming
HANNing - Hanning
KB70, 90, and 110 - Kaiser Bessel with sidelobes at
−70, −90, or −110
dBc
UNIForm - no window is used. (This is the unity response.)
Factory Preset
and *RST: FLATtop
Remarks: This selection affects the acquisition point quantity and
the FFT size, based on the resolution bandwidth
selected.
To use this command, the appropriate mode should be
selected with INSTrument:SELect.
Spectrum—Frequency Span
[:SENSe]:SPECtrum:FREQuency:SPAN <freq>
[:SENSe]:SPECtrum:FREQuency:SPAN?
Set the frequency span to be measured.
Factory Preset
and *RST: 1.0 MHz
100.0 kHz for iDEN mode