Decimator Quick Tour
SED Systems, a division of Calian Ltd.
(Proprietary)
7
6.
Overview
Setting the Center Frequency and Span using the menu buttons above is the traditional way to view
carriers. Let’s turn on the Overview Bar, which shows a trace of the full span to help navigate
around our spectrum. Click the OVERVIEW button, and turn the Overview Mode on by toggling it
“On” in the first menu item. The Overview Bar is shown at the bottom of Figure 8.
Figure 8 Overview Bar
Notice that our modulated carrier is selected with the blue background at 1400 MHz. There appears
to be 3 other carriers present that we will have a look at in the next section, Carrier Monitoring. The
Overview Bar full span trace can be refreshed on demand at any time by clicking the Refresh button
to the left of the Overview Bar or in the OVERVIEW menu.
Mouse input changes to the Overview Bar will drive changes to the Center Frequency and possibly
Span in the plot area above. Left clicking anywhere in the Overview Bar specifies a new Center
Frequency, or if you like, dragging the blue selection bar, as shown in Figure 9, does the same thing.
Figure 9 Overview Bar Drag Selected Span
