Owon XDS4000 Series User Manual page 34

Vertical
(V/div)
Source
Window
FFT
Format
Hori
(Hz)
Vertical
User Edit
Function
Vertical
（div）
Vertical
（V/div）
channel
DIR
type
4.Advanced User Guidebook
Turn the M knob to adjust the vertical division of the
Math waveform
CH1
CH2
Select the FFT source.
CH3
CH4
Hamming
Rectangle
Blackman
Select window for FFT.
Hanning
Kaiser
Bartlett
V RMS
Decibels
V RMS and Decibels are
Radian
Degrees
Position value
Switch to select the horizontal position
or time base of the FFT waveform, turn
Time base
the M knob to adjust it
value/
Switch to select the vertical position or
Position value
voltage division of the FFT waveform,
Division value/
turn the M knob to adjust it
Intg, Diff, Sqrt, and user defined function
Turn the M knob to adjust the vertical position of the
Math waveform
Turn the M knob to adjust the vertical division of the
Math waveform
CH1
Select channel
CH2
Only the signals whose frequencies
low-pass are lower than the current cut-off
frequency can pass the filter.
Only the signals whose frequencies
high-pass are greater than the current cutoff
frequency can pass the filter.
Only the signals whose frequencies
are greater than the cutoff frequency
band-pass
down and lower than the current cutoff
frequency upper can pass the filter.
Only the signals whose frequencies
are lower than the current cutoff
band-reject frequency down or greater than the
current cutoff frequency upper can
pass the filter.
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