Symmetricom 5115A, Руководство по эксплуатации и обслуживанию

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36 5: Configuring Data Displays
Figure 10: Example Phase Noise Data with Data Markers
To place markers using the softkey interface:
1. Navigate to the Phase Noise Plot. See “3.1.1 Navigation” on page 12 for details.
2. Press Config Phase Noise .
3. Press Markers .
4. Press Normal Marker or Delta Marker .
„
A marker (diamond) displays at the center of the plot and its coordinates display at the
top of the screen.
5. Use the arrow softkeys to move the marker to the frequency of interest.
„
The left and right arrows move the marker to the next data point in the plot in the
direction of the arrow. These are repeating, accelerating softkeys. Pressing and
holding the key, the marker moves by a single point a few times, then in increments of
2 points a few times, then 4, increasing by a factor of 2, until 64 points at a time are
skipped - at this rate the entire data set can be traced in a reasonable amount of time.
Note that movement in terms of data points is not possible while no data set is plotted.
„
The and softkeys move the marker to the offset frequency at the
next vertical grid line.
„
The softkey moves the marker to the center of the x axis.
Difference between
marker coordinates Delta marker’s coordinates
display in orange color. Normal marker’s coordinates
display in white color.
Delta marker and its
spur information
window display in
orange color.
Normal marker and
its spur information
window display in
white color.
Mouse cursor