Technical data

304 Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference

16 Function Commands

:FUNCtion<N>:FFTPhase

Command :FUNCtion<N>:FFTPhase <source>

The :FUNCtion<N>:FFTPhase command computes the Fast Fourier

Transform (FFT) of the specified channel, function, or waveform memory.

The FFT takes the digitized time record and transforms it into magnitude

and phase components as a function of frequency.

<N> An integer, 1 - 4, representing the selected function.

<source> {CHANnel<n> | DIFFerential<P> | COMMonmode<P> | FUNCtion<n> |

WMEMory<n> | <float_value> | MTRend | MSPectrum}

See the discussion of possible operands in the introduction to Chapter 16,

“Function Commands,” starting on page 287.

Example This example sets up function 1 to compute the FFT of waveform memory

myScope.WriteString ":FUNCTION1:FFTPHASE WMEMORY3"