# :FUNCtion:PARameters:FFT:PEAK:ASCii:FDATa?

FFT Parameters Commands

- :FUNCtion:PARameters:FFT:AIMPedance
- :FUNCtion:PARameters:FFT:DETector:COUNt
- :FUNCtion:PARameters:FFT:DETector:TYPE
- :FUNCtion:PARameters:FFT:DISPlay
- :FUNCtion:PARameters:FFT:NFRequency
- :FUNCtion:PARameters:FFT:PEAK:ASCii:FDATa?
- :FUNCtion:PARameters:FFT:PEAK:ASCii:MDATa?
- :FUNCtion:PARameters:FFT:PEAK:COUNt
- :FUNCtion:PARameters:FFT:PEAK:DOUBle:FDATa?
- :FUNCtion:PARameters:FFT:PEAK:DOUBle:MDATa?
- :FUNCtion:PARameters:FFT:PEAK:ENABle
- :FUNCtion:PARameters:FFT:PEAK:LEVel
- :FUNCtion:PARameters:FFT:PEAK:SORT
- :FUNCtion:PARameters:FFT:PREFerence
- :FUNCtion:PARameters:FFT:PREFerence:TORigin
- :FUNCtion:PARameters:FFT:RBANdwidth?
- :FUNCtion:PARameters:FFT:RIMPedance
- :FUNCtion:PARameters:FFT:TFACtor
- :FUNCtion:PARameters:FFT:WINDow

## Query Syntax

    :FUNCtionN:PARameters:FFT:PEAK:ASCii:FDATa?

Where N identifies one of up to 64 possible operators {1:64} that can be defined as part of a math function. The operators are numbered in the order that they were originally added to the function.

## Description

Returns the FFT peak frequency values as ASCII comma-separated values.

The data is sent in the order in which peaks are sorted (see `:FUNCtion:PARameters:FFT:PEAK:SORT`).

Use the `:FUNCtion:PARameters:FFT:PEAK:COUNt` command to set or query the number of annotated peaks (and values returned).

Use the `:FUNCtion:PARameters:FFT:PEAK:DOUBle:FDATa?` query to return the FFT peak frequency values in double format.

To get the FFT peak magnitude values, use `:FUNCtion:PARameters:FFT:PEAK:DOUBle:MDATa?` or `:FUNCtion:PARameters:FFT:PEAK:ASCii:MDATa?`.