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5.3.6. FFT function
The first menu on the second page is the FFT, and is used to turn on and off the FFT
function. The default is OFF. This function also includes switching between CH1 and
CH2 and will separately display Channel 1 and Channel 2 FFT.
The screen after turning on the FFT is shown in the below figure. You can use the “F”
tag on the left side of the screen to move the FFT wave pattern.