
Chapter 4 Voyager Instrument Control Panel Basics
4-14 PerSeptive Biosystems
4
Types of traces
The Spectrum window can contain two types of traces
(see Figure 4-5 on page 4-15):
• Live/Current—A live, real-time trace of data. The display
updates as you view or acquire data. When acquisition is
complete, the trace name changes from Live to Current.
NOTE: On systems with LeCroy or Signatec digitizers,
the Live Trace dynamically updates as data is
acquired. On systems with Tektronix oscilloscopes, a
complete Current trace is displayed only after acquisition
is complete.
• Accumulated Spectrum—A trace that is made up of one
or more spectra that you have manually or automatically
accepted.
Adding traces
The Spectrum window can display a total of four traces at one
time. To add a new trace to a window:
1. Activate (click on) the Spectrum window.
2. Click in the toolbar.
NOTE: You can add traces by selecting Add/Remove
Traces from the Display menu.
If the trace position has not previously been used for
the current acquisition, the software adds a Not Used
trace to the window.
If the trace position has previously been used for the
current acquisition, the software adds a trace that
contains the data originally displayed. For example, if
you add a second trace, then remove the trace, then
add the second trace again, the original trace is
displayed again, instead of a Not Used trace.
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