238 Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Reference
3Commands by Subsystem
:MEASure:SDEViation
(see page 530)
Command Syntax :MEASure:SDEViation [<source>]
<source> ::= {CHANnel<n> | FUNCtion | MATH}
<n>::={1|2|3|4}forthefour channel oscilloscope models
<n> ::= {1 | 2} for the two channel oscilloscope models
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><NL>
<value> ::= calculated std deviation value in NR3 format
See Also •"Introduction to :MEASure Commands" on page 218
•":MEASure:SOURce" on page 240
NOTE This command is not available if the source is FFT (Fast Fourier Transform).