:MATH:FFT:HSCale 125000 /*Set the horizontal scale of the FFT calculation result to
125kHz*/
:MATH:FFT:HSCale? /*The query returns 1.25000e + 05*/
Set or query the center frequency of the FFT operation result, that is, the frequency
corresponding to the horizontal center of the screen.
:MATH:FFT:HCENter 10000000 /*Set the center frequency of the FFT operation
result to 10MHz*/
:MATH:FFT:HCENter? /*The query returns 1.000000e + 07*/
The first time this command is issued, the analysis of data[x] is as follows:
data[0]-data[1] (2 digits): #9
data[2]-data[10](9 digits):The byte length of the current packet.
data[11]-data[19](9 digits): The total length of bytes representing the amount
of data.
data[20]-data[28](9 digits): The byte length of the uploaded data.
data[29](1 digit): The current running status.
data[30](1 digit) : Trigger status.
data[31-34] (4 digits) : Offset of channel 1
data[35-38] (4 digits): Offset of channel 2
data[39-42] (4 digits): Offset of channel 3
data[43-46] (4 digits): Offset of channel 4
data[47]-data[53]( 7 digit): Voltage of channel 1
data[54]-data[60](7 digits): Voltage of channel 2
data[61]-data[67](7 digits): Voltage of channel 3
data[68]-data[74](7 digits): Voltage of channel 4
data[75]-data[78] (4 digit): Channel enable of channel (1-4)
data[79]-data[87] (9 digits): Sampling rate.
data[88]-data[93] (6digits): Sampling multiple.
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