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Chapter 16 Analysis
Setting a marker
Procedure
1
2
3
4
5
Figure 86
130
Press the MARKER hard key to display the Marker screen menu bar.
By default, the instrument shows the Marker screen bar.
Tap one of the six marker screen keys (M1 to M6), which you like to position on the trace.
The active marker's readout is displayed on the screen as shown in Figure 86.
To change the active marker type, tap the marker number screen key and then select the marker
type option from the following choices:
–
Normal (N): A Normal marker provides the reading of a marker position on the trace along
with the marker number set between 1 and 6. When you select a marker screen key, the
Normal marker type is set by default.
–
Delta (D): A Delta marker is associated with a Normal marker. A Normal marker must be set
before a Delta marker is set. When the Delta marker is set, the position set by the Delta
marker becomes the reference position of the Normal marker and the marker's X and Y
values display the difference compared with the Delta marker. The reference position will be
fixed. This setting is not used in the Smith Chart measurement mode.
–
Delta Pair (DP): A Delta Pair marker is associated with a Normal marker. A Normal marker
must be set before a Delta Pair marker is set. When the Delta Pair marker is set, the position
set by the Delta Pair marker becomes the reference position of the Normal marker and the
marker's X and Y values display the difference compared with the Delta Pair marker. The
reference position will vary as the trace changes. This setting is not used in the Smith Chart
measurement mode.
Repeat the steps 2-3 to set more markers as needed.
If there are two or more markers on the trace, you can change the active marker.
To set a marker as the active marker, simply tap the marker screen key.
The color of the text in the marker's screen key changes from white to yellow to indicate the active
marker.
Active marker and its readout
CellAdvisor JD720C User's Manual
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