User Manual
74
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
rotary control
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
rotary control
to move line a to the right or left. If
b
is selected, turn the
M
rotary control to
move line b.
6.
In the bottom menu, select
Line Type
as
Vamp
to make the horizontal
cursors active. Select
Line
in the bottom menu as
a
or
b
, turn the
M
rotary
control to move it.
7.
In the bottom cursor menu, you can select
Window
as
Main
to make the
cursors shown in the main window.
