990
Marker
Setting the Marker X Position in Trace Points
The command below sets the marker X position in trace points. It has no effect if the marker control
mode is Off. But it is the SCPI equivalent of entering a value if the control mode is Normal or Delta or
Fixed – except the setting is in trace points rather than X-axis scale units.
NOTE The entered value in Trace Points is immediately translated into the current X-axis
scale units for setting the value of the marker. The marker’s value in X-axis scale
Units, NOT trace points, are preserved if a change is made to the X-axis scale
settings. Thus, if you use this command to place a marker on bucket 500, which
happens at that time to correspond to 13 GHz, and then you change the Start
Frequency so that bucket 500 is no longer 13 GHz, the marker will stay at 13 GHz,
NOT at bucket 500.
Notes: If no suffix is sent it will use the fundamental units for the current marker
X-axis scale. If a suffix is sent that does not match the current marker X-axis
scale unit, an invalid suffix error is generated.
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 if the control mode is
Normal or Fixed. It returns the offset from the marker’s reference marker if
the control mode is Delta. The query is returned in the fundamental units for
the current marker X-axis scale: Hz for Frequency and Inverse Time,
seconds for Period and Time. If the marker is Off the response is not a
number.
Preset: After a preset, if X is queried with no value sent first, the center of screen
value is returned.
Min: – ∞ (minus infinity)
Max: + ∞ (plus infinity). X-Series marker values are not limited and do not clip
Default Unit: Determined by X-axis scale
Backwards Compatibility SCPI: :CALCulate:MARKer[1]|2|3|4:X:CENTer
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:X:POSitio
n <real>
:CALCulate:MARKer[1]|2|3|4|5|6|7|8|9|10|11|12:X:POSitio
n?