3 VMA Mode
3.1 Digital Demod Measurement
Delta Marker (Reset Delta)
Pressing this control has exactly the same effect as pressing Delta in Marker Mode.
The selected marker becomes a Delta Marker. If the selected marker is already a
Delta marker, the reference marker is moved to the current position of the selected
marker, thus resetting the Delta to zero.
Marker Settings Diagram
Enables you to configure the Marker system using a visual utility.
All Markers Off
Turns off all markers.
Remote Command
:CALCulate:DDEMod:MARKer:AOFF
Example
:CALC:DDEM:MARK:AOFF
Couple Markers
When this function is On, moving any marker causes an equal X Axis movement of
every other marker that is not Fixed or Off. By “equal X Axis movement” we mean
that we preserve the difference between each marker’s X Axis value (in the
fundamental x-axis units of the trace that marker is on) and the X Axis value of the
marker being moved (in the same fundamental x-axis units).
Note that Fixed markers do not couple. They stay where they were, while all the
other markers move. If a Fixed marker is being moved, all the non-fixed markers will
move with it.
This may result in markers going off-screen.
Remote
Command
:CALCulate:DDEMod:MARKer:COUPle[:STATe] ON | OFF | 1 | 0
:CALCulate:DDEMod:MARKer:COUPle[:STATe]?
Example
:CALC:DDEM:MARK:COUP ON
:CALC:DDEM:MARK:COUP?
Notes In general, when coupling is turned on, then all Normal or Delta markers with the same (or equivalent)
domain as the selected marker move in the same manner as the selected marker
Preset OFF, presets on Mode Preset and All Markers Off
State Saved Saved in instrument state
Vector Modulation Analyzer Mode User's &Programmer's Reference 292
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