RIGOL 2 Command System
2-54 MSO2000A/DS2000A Programming Guide
:CALCulate:FFT:VOFFset
Syntax
:CALCulate:FFT:VOFFset <offs>
:CALCulate:FFT:VOFFset?
Description
Set or query the vertical offset of the FFT operation result.
Parameter
Name Type Range Default
<offs> Real -40×VScale to 40×VScale 0
Note: For the VScale (the vertical scale of MATH), refer to the :CALCulate:FFT:VSCale command.
Return Format
The query returns the vertical offset in scientifc notation.
:CALCulate:FFT:HSCale
Syntax
:CALCulate:FFT:HSCale <hscale>
:CALCulate:FFT:HSCale?
Description
Set or query the horizontal coefficient in FFT operation. This command indirectly sets the FFT horizontal
scale.
Parameter
Name Type Range Default
<hscale> Discrete {1|2|3|4} 1
Note: You can use the :CALCulate:FFT:HSPan command to set the horizontal scale of FFT directly.
Explanation
1: Horizontal Scale=the current FFT sample rate of the screen/20.
2: Horizontal Scale=the current FFT sample rate of the screen/40.
3: Horizontal Scale=the current FFT sample rate of the screen/100.
4: Horizontal Scale=the current FFT sample rate of the screen/200.
Return Format
The query returns 1, 2, 3 or 4.