Commands by Subsystem 3
Agilent InfiniiVision 5000 Series Oscilloscopes Programmer's Reference 229

:MEASure:FREQuency

(see page 530)
Command Syntax :MEASure:FREQuency [<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:FREQuency command installs a screen measurement and
starts a frequency measurement. If the optional source parameter is
specified, the current source is modified.
IF the edge on the screen closest to the trigger reference is rising:
THEN frequency = 1/(time at trailing rising edge - time at leading rising
edge)
ELSE frequency = 1/(time at trailing falling edge - time at leading falling
edge)
Query Syntax :MEASure:FREQuency? [<source>]
The :MEASure:FREQuency? query measures and outputs the frequency of
the cycle on the screen closest to the trigger reference.
Return Format <source><NL>
<source> ::= frequency in Hertz in NR3 format
See Also "Introduction to :MEASure Commands" on page 218
":MEASure:SOURce" on page 240
":MEASure:PERiod" on page 233
Example Code "Example Code" on page 240
NOTE This command is not available if the source is FFT (Fast Fourier Transform).