:MEASure:SOURce
:MEASure:SOURce <source1>[,<source2>]
:MEASure:SOURce?
<source1>
enum
CHANnel<n> FUNCtion MATH WMEMory<r> EXTernal
The first source for measurements
<source2>
enum
CHANnel<n> FUNCtion MATH WMEMory<r> EXTernal
The second source for measurements (only used for :MEASure:DELay and :MEASure:PHASe)
The :MEASure:SOURce command sets the default sources for measurements. The specified sources are used as the sources for the MEASure subsystem commands if the sources are not explicitly set with the command. If a source is specified for any measurement, the current source is changed to this new value. If :MARKer:MODE is set to OFF or MANual, setting :MEASure:SOURce to CHANnel<n>, FUNCtion, or MATH will also set :MARKer:X1Y1source to source1 and :MARKer:X2Y2source to source2. EXTernal is only a valid source for the counter measurement (and <source1>).
<source1>,<source2><NL>
Set the measurement source to Channel 1
:MEASure:SOURce CHANNEL1