Rigol MSO2000A Series Programming Manual page 71

2 Command System
:CALCulate:FFT:HOFFset
Syntax
:CALCulate:FFT:HOFFset <offs>
:CALCulate:FFT:HOFFset?
Description
Set or query the horizontal offset of the FFT operation result. The unit is Hz.
Parameter
Name Type
<offs> Real
Note: The current FFT sample rate of the screen = the number of points per grid horizontally/horizontal time base.
For the horizontal time base, refer to the
Return Format
The query returns the horizontal offset in scientific notation.
:CALCulate:FFT:HSPan
Syntax
:CALCulate:FFT:HSPan <span>
:CALCulate:FFT:HSPan?
Description
Set or query the horizontal scale of the FFT operation result.
Parameter
Name Type
<span> Real
Note: The step is 1X-2X-5X-10X within the range.
The current FFT sample rate of the screen =the number of points per grid horizontally/horizontal time base. For the
horizontal time base, refer to the
You can use the :CALCulate:FFT:HSCale
Return Format
The query returns the current horizontal scale in scientific notation and the unit is Hz/div.
MSO2000A/DS2000A Programming Guide
Range
-0.4*the current FFT sample rate of the
screen to +0.4*the current FFT sample rate
of the screen
:TIMebase[:MAIN]:SCALe
Range
The current FFT sample rate of the
screen/200 to the current FFT sample rate of
the screen/20
:TIMebase[:MAIN]:SCALe
command to set the horizontal scale of FFT operation indirectly.
Default
0
command.
Default
5MHz/div
command.
RIGOL
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