Agilent Technologies Infiniium 90000 Q-Series, Programmer'S Manual

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642 Agilent Infiniium 90000 Series Oscilloscopes Programmer's Reference
25
Measure Commands
:MEASure:SOURce
Command
:MEASure:SOURce {<source>[,<source>]}
The :MEASure:SOURce command selects the source for measurements. You
can specify one or two sources with this command. All measurements
except :MEASure:HOLDtime, :MEASure:SETUPtime, and
:MEASure:DELTatime are made on the first specified source. The delta
time measurement uses two sources if two are specified.
<source> {CHANnel<N> | FUNCtion<F> | DIGital<M> | WMEMory<N> | CLOCk |
MTRend | MSPectrum | EQUalized}
MTRend and MSPectrum sources are only available if the oscilloscope has
the EZJIT option installed and the feature is enabled.
The CLOCk source is only available if the oscilloscope has the High Speed
Serial option installed and the feature is enabled.
The EQUalized source is only available if the oscilloscope has the High
Speed Serial option and the Serial Data Equalization option installed and
the features are enabled. This command uses the Feed- Forward Equalized
(FFE) signal as the source.
<N> CHANnel<N> is an integer, 1- 4.
WMEMory<N> is an integer, 1- 4.
<F> FUNCtion<F> is an integer, 1- 16.
<M>
An integer, 0- 15. Digital channels are available on mixed- signal
oscilloscopes.
Example
This example selects channel 1 as the source for measurements.
myScope.WriteString ":MEASure:SOURce CHANnel1"
Query
:MEASure:SOURce?
The :MEASure:SOURce? query returns the current source selection.
Returned Format
[:MEASure:SOURce] <source>[,<source>]<NL>
Example This example places the currently specified sources in the string variable,
strSource, then prints the contents of the variable to the computer's
screen.
Dim strSource As String ' Dimension variable.
myScope.WriteString ":MEASure:SOURce?"
strSource = myScope.ReadString
Debug.Print strSource