GW Instek GDS-1062A - Using the FFT Function

MEASUREMENT
57
Using the FFT function
Procedure
1. Press the Math key.
M
A
T
H
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 voltage to dB or RMS.
6. To move the FFT waveform
vertically, use the Variable
knob. The position will be
updated in Position.
VARIABL
E
Range
–12.00 Div ~ +12.00 Div
7. To select the vertical scale of
FFT waveform, press
Unit/Div(FFT) or
Volt/Div(FFT RMS)
repeatedly.
Range
1, 2, 5, 10, 20 dB/Div
Voltage Volt/Div
GDS-1000A Series User Manual
58
8. To clear the FFT result from
the display, press the Math
key again.
M
A
T
H