Owon XDS4000 Series User Manual page 100

Function
Setting
Menu
Vamp (or
Phase)
Freq
Freq&Vamp
Type
Freq&Phase)
AutoCursr
Line Type
Freq
(Freq&Vam
p or
Vamp (or
Freq&Phase
Phase)
type)
Window
Main
(Wave zoom
Extension
mode)
Line
Source Math FFT
Perform the following operation steps for the amplitude and frequency cursor
measurement of math FFT:
1. Press the Math button to display the math menu in the bottom. Select
FFT. In the right menu, select Format. In the left menu, turn the M
knob to select amplitude unit (V RMS or Decibels).
2. Push Cursor to 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. If the Line in the bottom menu is select as a, turn the M
knob to move line a to the right or left. If b is selected, turn the M knob
4.Advanced User Guidebook
Description
Display the Vamp (or Phase) measurement
cursor and menu.
Display the Freq measurement cursor and
menu.
Display the corresponding measurement
(or cursor and menu.
The horizontal cursors are set as the
intersections of the vertical cursors and the
waveform
Makes the vertical cursors active.
Makes the horizontal cursors active.
Measure in the main window.
Measure in the FFT extension window.
a Turn the M knob to move line a.
b Turn the M knob to move line b.
Two cursors are linked. Turn the M knob to
ab
move the pair of cursors.
Display the channel to which the cursor
measurement will be applied.
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