User Manual of
OWON
Color Mixed Signal Digital Storage Oscilloscope
27
The following table describes the FFT menu:
Function Menu
Setting
Instruction
FFT
ON
OFF
Turn on FFT function.
Turn off FFT function.
Source
CH1
CH2
Select CH1 as FFT source.
Select CH2 as FFT source.
Window
Rectangle
Blackman
Hanning
Hamming
Select window for FFT.
Format
dB
Vrms
Select dB for Format.
Select Vrms for Format.
Zoom
*1
*2
*5
*10
Set multiple *1.
Set multiple *2.
Set multiple *5.
Set multiple *10.
Taking the FFT operation for example, the operation steps are as follows:
1.
Press the
MATH MENU
button and call out the WAVE MATH menu.
2.
Press the
F5
selection button to turn to Page2 , Press
F3
to choose FFT.
3.
Press F1 to turn on/off FFT after entering FFT menu, and please note that FFT is
prohibited in Window setting mode. The green waveform F is shown in the screen
after calculation.
4.
Press
F2
selection button to switch over source channel CH1 and CH2.
5.
Press
F3
button to select WINDOW,including Rectangle
、
Hamming
、
Hanning and
Blackman.
6.
Press
F4
to choose the Format as dB or Vrms.
7.
Press F5 to zoom in or out the wave of the multiple including *1, *2, *5, *10.
8.
Adjust the “Horizontal” knob in horizontal control zone to move the waveform and
the shown frequency of M Pos is the exact frequency of the cursor point in the middle
of spectrum.
9.
Turn off FFT and then press
math menu
button to go back to the second page of
wave math.
Selecting an FFT Window
