3 Short-Range Comms & IoT Mode
3.10 Spurious Emissions Measurement
Relative To
Selects the marker to which the selected marker is relative (its reference marker).
Every marker has another marker to which it is relative. This marker is referred to as
the “reference marker” for that marker. This attribute is set by the Marker,
Properties, Relative To control. The marker must be a Delta marker to make this
attribute relevant. If it is a Delta marker, the reference marker determines how the
marker is controlled and how its value is displayed. A marker cannot be relative to
itself.
Remote
Command
:CALCulate:SPURious:MARKer[1]|2|…|12:REFerence <integer>
:CALCulate:SPURious:MARKer[1]|2|…|12:REFerence?
Example
:CALC:SPUR:MARK3:REF 5
:CALC:SPUR:MARK:REF?
Notes This command causes the marker specified with the subopcode to become selected
Range (for SCPI command): 1 to 12. If the range is exceeded the value is clipped
A marker cannot be relative to itself, so that choice is not available, and if sent from SCPI generates
error -221: “Settings conflict; marker cannot be relative to itself”
When queried a single value is returned (the specified marker numbers relative marker)
Couplings If the reference marker is off it is turned on in Normal mode at the delta marker location
Preset The preset default “Relative To” marker (reference marker) is the next higher numbered marker (current
marker +1). For example, if marker 2 is selected, then it’s default reference marker is marker 3. The
exception is marker 12, which has a default reference of marker 1
Set to the defaults by using Restore Mode Defaults. This is not reset by Marker Off, All Markers Off, or
Preset
State Saved Saved in instrument state. Not affected by Markers Off, hence not affected by Preset or power cycle
Min 1
Max 12
Annunciation Appears in the marker label of a Delta marker
Marker Trace
Selects the trace on which you want your marker placed. A marker is associated
with one and only one trace. This trace is used to determine the placement, result,
and X-Axis Scale of the marker. All markers have an associated trace; it is from that
trace that they determine their attributes and behaviors, and it is to that trace that
they go when they become Normal markers.
Specifying a Marker Trace manually or with this command associates the marker
with the specified trace. If the marker is not OFF, it moves the marker from the trace
Short Range Comms & IoT Mode User's &Programmer's Reference 1425
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