:MEASure Commands
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Keysight InfiniiVision M9241/42/43A PXIe Oscilloscopes SCPI Programmer's Guide
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:MEASure:FREQuency
Command Syntax
:MEASure:FREQuency [<source>]
<source> ::= {CHANnel<n> | FUNCtion<m> | MATH<m> | WMEMory<r>}
<n> ::= 1 to (# of analog channels) in NR1 format
<m> ::= 1 to (# math functions) in NR1 format
<r> ::= 1 to (# ref waveforms) in NR1 format
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"
•
•
Example Code
•
NOTE
This command is not available if the source is FFT (Fast Fourier Transform).