Math<N>:Fft:offset; Math<N>:Fft:hscale; Math<N>:Fft:hcenter - Rigol DS7034 User Programming Manual

RIGOL
:MATH<n>:FFT:OFFSet
Syntax
:MATH<n>:FFT:OFFSet <offset>
:MATH<n>:FFT:OFFSet?
Description Sets or queries the vertical offset of FFT operation results.
Parameter Name
<n>
<offset>
Return The query returns the current vertical offset in scientific notation.
Format
Example :MATH1:FFT:OFFSet 0.3
:MATH1:FFT:OFFSet?
:MATH<n>:FFT:HSCale
Syntax :MATH<n>:FFT:HSCale <hsc>
:MATH<n>:FFT:HSCale?
Description
Sets or queries the frequency range of FFT operation results. The default unit is Hz.
Parameter
Name
<hsc>
Remarks
You can reduce the frequency range to observe the details of the spectrum.
Return
The query returns the current frequency range in scientific notation.
Format
Example :MATH1:FFT:HSCale 500000
:MATH1:FFT:HSCale?
:MATH<n>:FFT:HCENter
Syntax :MATH<n>:FFT:HCENter <cent>
:MATH<n>:FFT:HCENter?
Description
Sets or queries the center frequency of FFT operation results, i.g. the frequency relative to
the horizontal center of the screen. The default unit is Hz.
Parameter
Name
<n>
<cent>
Return The query returns the current center frequency in scientific notation.
Format
Example :MATH1:FFT:HCENter 10000000
:MATH1:FFT:HCENter?
2-100
Type Range
Discrete {1|2|3|4}
Real -1 GdB to 1 GdB
/*Sets the vertical offset of the FFT operation results to
300 mdB*/
/*The query returns 3.000000E-1.*/
Type Range
Real 10 Hz to 5 GHz
/*Sets the frequency range of FFT operation results to
500 kHz.*/
/*The query returns 5.000000E+5.*/
Type Range
Discrete {1|2|3|4}
Real -2.5 GHz to 2.5 GHz
/*Sets the center frequency of the FFT operation
results to 10 MHz.*/
/*The query returns 1.000000E+7.*/
Chapter 2 Command System
Default
——
0 dB
Default
10 MHz
Default
——
5 MHz
MSO7000/DS7000 Programming Guide