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9.2.1 Cursor measurements in FFT mode
In FFT mode, press the cursor button to open the cursor menu.
A description of the cursor menu in FFT mode can be found below:
Menu
Settings
Description
Type
Vamp
Freq
Freq&Vamp
Auto Cursor
Display the Vamp (or Phase) measurement
cursor and menu
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
Line Type
(Freq&Vamp or
Freq&Phase type)
Freq
Vamp
Makes the vertical cursors active
Makes the horizontal cursors active
Window
(Wave zoom mode)
Main
Extension
Measure in the main window
Measure in the FFT extension window
Source
Math FFT
Display the channel to which the cursor
measurement will be applied
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.
7.
In the bottom cursor menu, you can select
Window
as
Main
to make the cursors shown in
the main window.
9.3 Mathematical manipulation function
The
Mathematical Manipulation function is used to show the results of the addition, multiplication,
division and subtraction operations between two channels, advanced math feature including Intg,
Diff, Sqrt, user defined function, and digital filter. Click
to call up the menu panel. Click the Math
softkey on panel to switch to the ON state and display the math menu on the bottom.