991
Marker
Setting the Marker Y-axis ValueThe command below selects the marker and sets the marker Y-axis value; the default unit is the current Y-axis unit. It has no effect (other than selecting the marker) unless the marker control mode is Fixed.Notes: If the specified marker is Fixed and a Marker Function is on, a message is
generated. If the key is pressed, an advisory message is generated. If the
equivalent SCPI command is sent, this same message is generated as part of a
“–221, Settings conflict” warning.
The query returns the marker’s absolute X-axis value in trace points if the
control mode is Normal or Fixed. It returns the offset from the marker’s
reference marker in trace points if the control mode is Delta. The value is
returned as a real number, not an integer, corresponding to the translation from
X-axis scale units to trace points
Preset: After a preset, if X is queried with no value sent first, the center of screen
value is returned. So if per default, the number of Trace points is 1001, the
center value is 500.
Min: 0
Max: Number of trace points – 1
Default Unit: unitless
Backwards Compatibility SCPI: :CALCulate:MARKer[1]|2|3|4:X:POSition:CENTer
Backwards Compatibility SCPI: The legacy command,
:CALCulate:MARKer[n]:X:POSition:CENTer <param>
was used to control the center point between the Delta and Reference marker
in trace points (buckets) in Span Pair mode. In the new system, this is
equivalent to simply setting the marker position in trace points. So this
command is aliased to the command
:CALCulate:MARKer[n]:X:POSition <param>
NOTE The UP/DOWN parameters will increment/decrement
by one bucket. This will require a conversion to
buckets and back.
Initial S/W Revision: Prior to A.02.00
Remote Command: :CALCulate:MARKer[1]|2|3|4|5|6|7|8|9|10|11|12:Y <real>
:CALCulate:MARKer[1]|2|3|4|5|6|7|8|9|10|11|12:Y?
Example: CALC:MARK2:MODE POS turns on marker 2 as a normal marker.
CALC:MARK2:X 20 GHZ moves marker 2 to 20 GHz if X-axis scale is
Frequency. If X-axis scale is Time, the –131 invalid suffix error is generated.
Preset: Trace value at center of screen. There is no way to predict what this will be
after a preset.