Chapter 4 Functions of the Front Panel of EMI
RIGOL
RSA3000E User Guide
4-31
Selected Marker
RSA3000E series provides 8 markers. By default, Marker1 is selected under "Selected
Marker". After you select a marker, you can set parameters such as the marker mode
and the marker trace. The currently enabled marker will be marked on the trace
selected under Marker Trace. The readout of the currently activated marker at the
marker point will be displayed in the measurement result bar at the upper-left corner
of the screen.
Marker Mode
Sets the type of the marker. The available marker modes include Position, Delta, and
Off.
1.
Position
It is used to measure the X (Frequency) and Y (Amplitude) values of a certain
point on the trace. When "Position" is selected, a marker whose name is Marker
plus a marker number (such as "Marker1") appears on the trace.
Remarks:
If no active marker exists currently, a marker will be enabled at the midspan
frequency. If the current marker is found in the range where no trace is
displayed, a marker will be enabled at the midspan frequency, and it will be
displayed at the bottom of the trace display area.
The readout resolution of the X-axis is related to the span. To obtain a
higher readout resolution, reduce the span.
2.
Delta
It is used to measure the difference between "reference point" and "certain
point on the trace": X (frequency) and Y (amplitude) value.
Remarks:
If an active marker exists currently, then activate a reference marker at the
current marker; otherwise activate both the reference marker and Delta
marker at the same time at the midspan frequency.
When you change the position of the Delta marker, the position of the
reference marker remains unchanged, but the frequency difference
between the two markers will change along with it.
The frequency difference between the two markers and the amplitude
difference between them are displayed in the measurement result bar at
the upper-left corner of the screen.