Owon TAO3000 Series User Manual page 85

Function
Setting
Menu
(or Phase)
Type
Freq&Vamp
(or Freq&Phase)
AutoCursr
Line Type
(Freq&Vamp
or
Freq&Phase
(or Phase)
type)
Window
(Wave zoom
Extension
mode)
Source Math FFT
Perform the following operation steps for the amplitude and frequency cursor
measurement of math FFT:
1. Click to call up the menu panel. Click the FFT softkey on panel to
switch to the ON state and display the FFT menu. In the bottom menu,
select Format. In the right menu, select amplitude unit (V RMS or
Decibels).
2. Click to call up the menu panel. Click the Cursor softkey on panel
to switch to the ON state and display the cursor menu.
3. In the bottom menu, select Window as Extension.
4. Select the first menu item in the bottom menu, the Type menu will
display at the right of the screen. In the right menu, select Freq&Vamp
for Type, two blue dotted lines displayed along the horizontal direction
of the screen, two blue dotted lines displayed along the vertical
direction of the screen. Cursor measure window at the left bottom of
the screen shows the cursor readout.
5. In the bottom menu, select Line Type as Freq to make the vertical
cursors active. Click line a to select it, swipe left/right to move it. Click
line b to select it, swipe left/right to move it.
6. In the bottom menu, select Line Type as Vamp to make the horizontal
cursors active. Click line a to select it, swipe up/down to move it. Click
line b to select it, swipe up/down to move it.
4.Advanced User Guidebook
Description
Display
Vamp
measurement cursor and menu.
Freq Display the Freq measurement cursor and
menu.
Display the corresponding measurement
cursor and menu.
The horizontal cursors are set as the
intersections of the vertical cursors and
the waveform
Freq Makes the vertical cursors active.
Vamp
Makes the horizontal cursors active.
Main Measure in the main window.
Measure in the FFT extension window.
Display the channel to which the cursor
measurement will be applied.
79
the Vamp (or Phase)