FETCh3:FFTRansform:{MAGNitude | PHASe}?
[{FLAT | HANNing}, [<record #>, [<first_pt>, [<length>,]]]] (@channel)
Performs post-processing calculation on the specified range of readings and returns FFT magnitude/phase on the
specified record for a channel.
The minimum data points to perform the post-processing calculation is 256 data points. For valid post
processed measurement, please ensure data captured is at least 1 cycle.
The <length> will be round down to the lower 2
n
number, if the number enter is not 2
n
.
This SCPI is supported on the DAQM909A Digitizer module only.
Parameter Typical return
<window function> = {FLAT | HANNing}
Default: FLAT
<record #> = An integer indicating the specified record for a channel.
Default: 1
<first_pt> = An integer indicating the first data point of the range of readings to perform
post processing calculation to obtain the signal's magnitude/phase
Default: 1
<length> = An 2
n
integer (256, 512,1024, 2048, 4096, ….., 65536) indicating the number of
data points to perform post processing calculation to obtain the signal's magnitude/phase
Default: 256
<channel> = Channel number
(none)
Returns the FFT magnitude of 256 readings starting from the second data point in the first record of Digitizer channel 201.
FETC3:FFTR:MAGN? FLAT,1,2,256,(@201)
Typical response: +9.73982085E-03, +1.98526811E-02,+2.33925991E-02,.........,+2.93494016E-02
128
Keysight DAQ970A/DAQ973A Programming Guide
2 SCPI Programming
To Next Page
Loading...
Need help?
General
