Fft Function (Fast Fourier Transform) (Od-411/Od-415) - Promax OD-405 Manual De Instrucciones

6. To move the FFT waveform vertically press F4 (Position) and the use
the Variable [3] knob.
Range: —12.00 Div - +12.00 Div
7. To select the FFT waveform vertical scale press Unit/Div repeatedly
position and use the Vertical knob.
Range: 1,2,5,10,20 dB/Div
8. To clear the FFT result from the display, press math key again.

5.3.3 FFT function (Fast Fourier Transform) (OD-411/OD-415)

The FFT function is operated differently on the OD-405/OD-410B and
OD-411/OD-415. Use the procedure below with the OD-411/OD-415 only.
Procedure:
1. Press the Math key.
2. Press Operation repeatedly to select FFT or FFT RMS.
3. Press Source repeatedly to select the source channel.
4. Press Window repeatedly to select the FFT window type.
5. The FFT result appears. The horizontal scale changes from time to
frequency, and the vertical scale from dB to voltage or RMS.
6. To move the FFT waveform vertically on the OD-411/OD-415
models, press Vertical repeatedly until Div is selected. Use the
Variable knob to change the vertical scale.
Range
7. To select the vertical scale of an FFT waveform, press Vertical
repeatedly until dB is selected. Use the Variable knob to change the
vertical scale.
Range
11-2011
USER'S MANUAL. OD-405/410B/411/415
—12.00 Div ~ +12.00 Div
1, 2, 5, 10, 20 dB/Div
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