Position Tab (Markers)

Menu Path: Markers > Position

The Position tab of the Markers dialog box sets visibility, configure marker type, and position the marker on a trace.

Marker controls: At the top of the Position tab are controls for selecting, adding, and removing markers. A marker is uniquely specified by a trace and a marker number. See Managing Markers for more information.
Visible: Select the Visible check box to make the marker visible on the selected trace; clear the check box to remove the marker from the trace. When the marker is enabled, the following parameters can be set for the marker:
- Marker Type dropdown box: Specifies the type of marker as Normal, Delta, or Fixed.
- Marker Reference dropdown box: The dropdown box next to the marker type specifies the reference marker for a delta marker.
- X Position / ∆ X Position: Shows the x-axis component of the marker location.
- Peak Track: Places the marker at the peak magnitude in the trace.
- Couple Markers: Couple the current marker number on all traces.
- Y Position: Shows the y-axis component of the marker location. This parameter is only editable when the marker type is Fixed.
- Z Position: Shows the z-axis component of the marker location. This parameter is only editable when the current trace contains Z-axis data.
- Trace Time: Specifies the elapsed time from the beginning of the measurement to the current scan (for spectrogram traces).
- Zero Delta: Moves the reference marker to the location of the active delta marker.
All Markers: Specifies settings common to all markers in the active trace.
- Polar Format: Choose between Real and Imaginary or Magnitude and Phase. This setting is only applicable when the trace format is I-Q or Const.
- Consolidate when Code Order is Hadamard: Places triangle-shaped markers on all related code channels.
- Peak Search
  - Threshold: Specifies the peak search threshold.
  - Excursion: Specifies the peak search excursion.

A marker can be placed on part of a trace that is outside of the current trace scale boundaries. In this case, the VSA will show an arrow at the edge of the trace grid pointing to the marker and a number next to the arrow to indicate the marker number.