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Digital Oscilloscope Series
94
MATH
FFT_UNIT | FFTU
Command /Query
DESCRIPTION
The FFT_UNIT command sets the vertical scale
type of FFT (Fast Fourier Transform algorithm).
The FFT_UNIT? query returns the current
vertical scale type of FFT waveform.
COMMAND SYNTAX
FFT_UNIT <unit>
<unit>:={VRMS,DBM,DBVRMS}
QUERY SYNTAX
FFT_UNIT?
RESPONSE FORMAT
FFT_ UNIT <unit>
EXAMPLE
For SDS1000X-E series, when the Math
function is on, and the operator is FFT, the
following command sets the vertical scale unit of
FFT to dBVrms.
Command message:
FFTU DBVRMS
RELATED COMMANDS
FFTS
FFTP
Note:
The table below shows the availability of command in each oscilloscope series.
Model
Valid?
SDS1000CFL
no
SDS1000A
no
SDS1000CML+/CNL+/DL+/E+/F+
no
SDS2000X
no
SDS1000X
no
SDS1000X-E
yes
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