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4. Press the
Vertical Units
key
from
the side menu to select the vertical
units used.
Range
Linear RMS, dBV RMS
5. Press the
Window
key from the
side menu and select the window
type.
Range
Hanning, Hamming, Rectangular,
and Blackman.
6. The FFT result appears. For FFT, the horizontal
scale changes from time to frequency, and the
vertical scale from voltage/current to dB/RMS.
Source
Math
Position and
Scale
To move the FFT waveform vertically,
press
Vertical
until the
Div
parameter
is highlighted and then use the
Variable knob.
Range
–12.00 Div ~ +12.00 Div
To select the vertical scale of the FFT
waveform, press
Vertical
until the
dB
or
voltage
parameters are highlighted
and then use the Variable knob.
Range
2mV~1kV RMS, 1~20 dB
Zoom and Offset To zoom into the FFT waveform, press
Zoom
until the
x times
parameter is
highlighted and then use the Variable
knob.
Range
1x ~ 20x
To horizontally offset the FFT
waveform, press
Zoom
until the
frequency
parameter is highlighted
and then use the Variable knob.
