Other topics about Analyzing Data
Markers allow you to retrieve measurement results at specified points. You can use up to nine markers for each trace, and you can move them to any point on the trace. In addition to the regular markers, you can use a reference marker.
To show or hide markers, including the reference marker, use the following command:
:CALC{1-36}:MARK{1-10}
You can move markers or retrieve the data at a marker even when the markers are hidden.
The display of the reference marker is turned on or off when you turn On or Off Reference Marker mode.
Turning on Reference Marker mode provides relative marker values with respect to the reference marker (by subtracting the value at the reference marker from the value at a particular marker).
To turn On or Off Reference Marker mode, use the following command:
:CALC{1-36}:MARK:REF
To set (or change along the frequency axis) the stimulus value at a particular marker or the reference maker or to retrieve the current stimulus value, use the following command:
:CALC{1-36}:MARK{1-10}:X
When Reference Marker mode is on, the stimulus value at a regular marker is a relative stimulus value obtained by subtracting the stimulus value at the reference marker from the actual stimulus value at that particular marker.
To retrieve the measurement results (response values) at a particular marker or the reference marker, use the following command:
:CALC{1-36}:MARK{1-10}:Y?
When Reference Marker mode is on, the response value at a regular marker is a relative value obtained by subtracting the response value at the reference marker from the actual response value at that particular marker.