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Marker
Auto Init On
When
Auto Init is true, the marker’s trace attribute is re-determined automatically by the test set
whenever the marker turns on (Normal, Delta or Fixed) from an Off state. (The trace attribute is also
determined for all markers that are on, whenever
Auto Init is turned on).
When the marker moves between traces the marker’s X position in trace points is retained as it moves.
For moving between active traces this generally means the x-axis value of the marker will not change.
But for moving to or from an inactive trace, the x-axis value will take on that of the new trace at the
bucket the marker was on the old trace (and is still on, on the new trace, since the bucket doesn’t change).
Note this is true even if the marker is off screen. Thus, a marker that is at the center of the screen on the
old trace stays at the center of the screen on the new trace. A marker that is off screen one whole screen
to the left on the old trace remains off screen one whole screen to the left on the new trace – even if this
means it is at negative time.
Marker Trace is set to 1, and Auto Init is set to On, on a Preset or All Markers Off.
Auto Init Rules Flowchart
Auto Init OFF
This command associates the marker with the specified trace and turns Marker Trace, Auto Init OFF for
that marker. If the marker is not
Off it moves the marker from the trace it was on to the new trace. If the
marker is
Off it stays off but is now associated with the specified trace.
The query returns the number of the trace on which the marker is currently placed, even if that marker is
in Auto mode.
Lines
When on, displays a vertical line of graticule height and a horizontal line of graticule width, intersecting
Remote Command: :CALCulate:MARKer[1]|2|3|4|5|6|7|8|9|10|11|12:TRACe:AUT
O OFF|ON|0|1
:CALCulate:MARKer[1]|2|3|4|5|6|7|8|9|10|11|12:TRACe:AUT
O?
Notes: Turning Marker Trace Auto Init off has no effect on the trace on which the
marker is currently placed.
The response to the query is 0 if OFF, 1 if ON.
Couplings: The state of Auto Init is not affected by the Auto Couple key.
Auto Init is set to True on a Preset or All Markers Off.
If Auto Init is set to On for a marker and that marker is on, that marker’s
Marker Trace is immediately set according to the above flowchart.
Sending the remote command causes the addressed marker to become
selected.
Preset: ON
Initial S/W Revision: Prior to A.02.00