Rigol MSO1074Z-S 4-channel oscilloscope, Digital Storage oscilloscope, MSO1074Z-S Manual De Usuario
Los códigos de productos
MSO1074Z-S
RIGOL
2-40
DS1000Z Programming Guide
:MATH:FFT:UNIT
Syntax
:MATH:FFT:UNIT <unit>
:MATH:FFT:UNIT?
:MATH:FFT:UNIT?
Description
Set or query the vertical unit of the FFT operation result.
Parameter
Name
Type
Range
Default
<unit>
Discrete
{VRMS|DB}
DB
Return
Format
The query returns DB or VRMS.
Example
:MATH:FFT:UNIT VRMS
Related
Command
:MATH:FFT:HSCale
Syntax
:MATH:FFT:HSCale <hsc>
:MATH:FFT:HSCale?
:MATH:FFT:HSCale?
Description
Set or query the horizontal scale of the FFT operation result. The default unit is Hz.
Parameter
Name
Type
Range
Default
<hsc>
Real
Refer to
Explanation
5.00MHz
Explanation
The <hsc> parameter can be set to the four scales: 1/20, 1/40, 1/100 and 1/200 of
the current screen sample rate (namely 100/current horizontal timebase).
For example, if the horizontal timebase of the instrument is 1μs, the current screen
For example, if the horizontal timebase of the instrument is 1μs, the current screen
sample rate is 100/1μs=100MHz. Thus, the horizontal scale can be set to 5MHz,
2.5MHz, 1MHz or 500kHz.
You can view the detaied information of the spectrum by reducing the horizontal
scale.
Return
Format
The query returns the horizontal scale in scientific notation.
Example
:MATH:FFT:HSCale 500000 /*Set the horizontal scale to 500kHz*/
:MATH:FFT:HSCale? /*The query returns 5.000000e+05*/
Related
Command