Query
:SENSe:ROSCillator:SOURce?
This command returns whether the external reference signal is inputted to the Ref In connector on the rear panel.
{INT|EXT}<newline><^END>
INT: Internal
EXT: External reference signal is inputted
Dim Var as String
Ana.WriteString ":SENS:ROSC:SOUR?", True
Var=Ana.ReadString
Displayed on the instrument status bar (at the bottom of the LCD display).
SCPI.SENSE(Ch).ROSCILLATOR.SOURCE