User Manual

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8.3 STATUS1 Settings (FFT)
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8
.3.7 Selecting Reference Data
Screen: STATUS
1
Press the STATUS key to call up the
STATUS1 screen.
Move the flashing cursor to the reference
item, shown in the figure on the left.
Use the function keys to make the selection
.
Method
Method
：Capture new waveform data for
FFT processing
：Use stored waveform data for FFT
processing
Selection
Selection
NOTE
Select data to be used for FFT processing.
New data
When START key is pressed, data for setting points are captured and used for
FFT processing.
Memory waveform
Pressing the START key initiates FFT processing of the specified FFT Number
of Points, from the start of the data (Memory Recorder or memorized Recorder
& Memory waveform) that has been stored in memory.
The starting point for calculation can be specified using the cursor on the
screen with the stored Recorder & Memory waveform displayed.
If the A/B cursors are used, the FFT calculation is performed on the specified
FFT Number of Points beginning with whichever cursor is foremost.
When a memory waveform is selected, the frequency is automatically set to
correspond with the time axis as indicated in frequency range setup table in
section 8.3.3.
・When stored waveform data are used, the trigger setting is not required.
But the trigger mode is active, and when REPEAT or AUTO is selected, FFT
analysis is performed continuously for the specified number of data at a
time, until the end of data. (Calculation is not performed if less than the
specified number of points.)
・When new data is acquired, "new" is displayed at the upper left of the
screen. For main-unit memory waveforms, "mem" is displayed at the upper
left of the screen.