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Tip
Keep in mind that the units for x0 and dx parameters are seconds for time-domain
measurements and hertz for FFTs.
© National Instruments Corporation
•
phaseUnits
–
Degrees
–
Radians
•
x0—x-axis value of the first data point returned in the y-axis
measurement array
•
dx—x-axis increment for data points returned in the y-axis
measurement array
♦
NI 4552
If you configure an NI 4552 for 4-channel time, FFT, or auto-power
measurements, you may also use these type parameters:
•
Time 2
•
Time 3
•
Windowed time 2
•
Windowed time 3
•
Base FFT 2
•
Base FFT 3
•
Base auto-power 2
•
Base auto-power 3
3-11
Chapter 3
FFT Mode Programming
NI-DSA Software User Manual
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