# :FUNCtion:PARameters:FFT:TFACtor

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

## Command Syntax

    :FUNCtion{1:64}:PARameters:FFT:TFACtor <factor>

<factor> is an real.

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.

## Query Syntax

    :FUNCtionN:PARameters:FFT:TFACtor?

## Description

If the input is an optical signal and the FFT display is set for dBV (Electrical) with the `:FUNCtion:PARameters:FFT:DISPlay` command, use this command to enter a voltage conversion factor (V/W) for the FFT operator (`:FUNCtion:FOPerator`).

## Example Command Sequence

    :FUNCtion2:FOPerator FFT
    :FUNCtion2:PARameters:FFT:DISPlay DBV
    :FUNCtion2:PARameters:FFT:WINDow HANNing
    :FUNCtion2:PARameters:FFT:TFACtor 25.00
    :FUNCtion2:COLor TCOLor4
    :FUNCtion2:DISPlay ON
    *OPC?
    …  //  Your code to synchronize execution timing.