# :MEASure:FFT:FDMagnitude:FDPFirst

FFT Delta Magnitude Commands

- :MEASure:FFT:FDMagnitude
- :MEASure:FFT:FDMagnitude:FAVorite
- :MEASure:FFT:FDMagnitude:FDPFirst
- :MEASure:FFT:FDMagnitude:FDPSecond
- :MEASure:FFT:FDMagnitude:FPLevel
- :MEASure:FFT:FDMagnitude:LOCation?
- :MEASure:FFT:FDMagnitude:SOURce
- :MEASure:FFT:FDMagnitude:STATus?
- :MEASure:FFT:FDMagnitude:STATus:DETails?
- :MEASure:FFT:FDMagnitude:STATus:REASon?

## Command Syntax

    :MEASure:FFT:FDMagnitude:FDPFirst <peak_number>

<peak_number> is an integer.

## Query Syntax

    :MEASure:FFT:FDMagnitude:FDPFirst?

## Description

This command selects the first frequency peak number to be used in the FFT Delta Magnitude measurement (`:MEASure:FFT:FDMagnitude`).