Agilent Technologies Signal Analyzer N9030a - Manual (Page 669)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Marker
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
message will be 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 will be returned.
This will depend on the frequency range of the instrument. 13.255 GHz is correct for 26 GHz
instruments only (Option 526).
Min – ∞ (minus infinity)
Max + ∞ (plus infinity). Unlike legacy analyzers, where the markers were forced to be on screen, 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|...4:X:CENTer
This alias is provided for compatibility with the Band Power function in PSA and ESA. See
details in the “Marker Function” section under
"Band Function Backwards Compatibility" on
page 731
Backwards Compatibility
Notes In earlier Agilent analyzers, markers were position markers, which means that Normal and Delta
markers stayed at the same screen position when X Axis parameters were changed. In the X-
Series, markers are value markers, which means that when the analyzer’s X Axis settings are
changed, the marker’s X Axis value in fundamental X Axis units remains unchanged. See
"Marker Backwards Compatibility" on page 672 for a full discussion of this change.
Initial S/W Revision Prior to A.02.00
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.
Remote Language Compatibility Measurement Application Reference 669