UNI-T UTS3000B/A Series User Manual page 51

Spectrum analyzer
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It can display 10 markers on the screen at the time, but each time can only control one or a pair of
markers.
Select Marker: Select one of the ten cursors. The default is signed as marker 1. After selecting the
cursor, it can set parameters such as the cursor type, the marked trace, and the reading mode. The
currently open cursor will be marked on the trace selected by "Mark Trace", the current parameter area
and upper right corner of the screen will display the current active cursor reading at the marker.
Marker Mode:
1. Normal: For measuring X (frequency or time) and Y (amplitude) values in a point of trace. After
selecting normal, a cursor identified by the current cursor number will appear on the trace, such as "1",
pay attention to the following points in using:
If no activated cursor at the current, then activate a cursor at the center frequency of the current trace.
The reading of the current cursor will display on the upper right of the screen.
The resolution of X-axis (time or frequency) reading is related to the sweep span, which can be
reduced to achieve higher reading resolution.
2. Delta△:
Used to measure the difference between "reference point" and a "point on the trace": X (frequency or
time) and Y (amplitude) values.
After selecting "Difference", a pair of cursors will appear on the trace: the reference cursor (marked
with "×") and the difference cursor (marked with "△")
3. Fixed: After selecting "fixed" cursor, set the X and Y values of the cursor directly or indirectly, their
positions remain unchanged. Y value does not change with the trace. The fixed cursor is generally
used as the reference cursor of the difference cursor, and the fixed cursor is marked with "×".
4. Close: Turn off the selected cursor, the cursor information displayed on the screen and the related
function will also be closed.
Mark Trace: Select the trace marked by the current cursor as Trace 1, Trace 2, Trace 3, Trace 4, Trace 5
or Trace 6.
Mark Frequency: Mark the frequency point on the trace. User can change the frequency value by using
the numeric key, rotary knob, direction key or touch panel menu.
Relative To: For measuring the difference between two cursors and the two cursor can be marked on
the different trace at the same time.
Properties: Scale selection, manual/automatic switch and mark line switch of X-axis.
1. X-Axis Scale: optional frequency, period, time, inverse time. The marker point reading changes the
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