54 Chapter 3
Mode
Meas Off (Spectrum Analyzer) Measurement
Mode
Marker X Axis Position (Remote Command Only)
Sets the marker X position in trace points. It has no effect if the control mode is Off, but is
the SCPI equivalent of entering a value if the control mode is Normal or Delta except in
trace points rather than X Axis Scale units. The entered value is immediately translated
into the current X Axis Scale units for setting the value of the marker.
SCPI Resolution Determined by the number of sweep points and type/start/stop
of the X Axis scale.
- With a Frequency X Axis scale,
Resolution = (Stop Freq - Start Freq) / (Sweep points - 1)
Example - With default settings after a preset (6 GHz
Instrument):
Resolution = (6 GHz - 100 kHz) / (401 -1) = 14999.75 kHz
- With a Time X Axis scale,
Resolution = (Sweep Time - Start Time) / (Sweep points - 1)
Example - With default settings after set Span to Zero
Resolution = (27.307 ms - 0 s) / (401 -1) = 68.2675 µs
Key Path N/A - Remote Feature Only
Parameter Name Marker X Axis Position
Parameter Type Int32
Mode Spectrum Analyzer
SCPI Name Marker X Axis Position
Remote Command :CALCulate:MARKer[1]|2|3|4:X:POSition <real>
:CALCulate:MARKer[1]|2|3|4:X:POSition?
SCPI Example CALC:MARK2:X:POS 300
Remote Command Notes You must be in the SA mode to use this command. Use
INSTrument:SELect to set the mode.
The query returns the marker's absolute X Axis value in trace
points if the control mode is Normal, or the offset from the
marker's reference marker in trace points if the control mode is
Delta. If the marker is Off the response is not a number (NAN).
Dependencies /
Couplings
Marker X parameter is coupled with the Type/Start/Stop of the
X Axis scale and by the number of sweep points used by the
measurement.
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