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612 Keysight InfiniiVision 4000 X-Series Oscilloscopes Programmer's Guide

24 :MEASure Commands

:MEASure:SDEViation

(see page 1610)

Command Syntax

:MEASure:SDEViation [<source>]

<source> ::= {CHANnel<n> | FUNCtion<m> | MATH<m> | WMEMory<r>}

<n> ::= 1-2 or 1-4 (# of analog channels) in NR1 format

<m> ::= 1 to (# math functions) in NR1 format

<r> ::= 1 to (# ref waveforms) in NR1 format

The :MEASure:SDEViation command installs a screen measurement and starts std

deviation measurement. If the optional source parameter is specified, the current

source is modified.

Query Syntax

:MEASure:SDEViation? [<source>]

The :MEASure:SDEViation? query measures and outputs the std deviation of the

selected waveform. The oscilloscope computes the std deviation on all displayed

data points.

Return Format

<value> ::= calculated std deviation value in NR3 format

See Also • "Introduction to :MEASure Commands" on page 568

• ":MEASure:VRMS" on page 635

• ":MEASure:SOURce" on page 615

NOTE

This ":MEASure:VRMS DISPlay, AC" command is the preferred syntax for making standard

deviation measurements.

NOTE

This command is not available if the source is FFT (Fast Fourier Transform).

Keysight Technologies InfiniiVision 4000 X Series User Manual

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