Lowrance electronic Lowrance iFINDER Explorer - Manual (Page 30)

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Satellite Status Page.
This screen shows a graphical view of the satellites that are in view.
Each satellite is shown on the circular chart relative to your position.
The point in the center of the chart is directly overhead. The small in-
ner ring represents 45° above the horizon and the large ring represents
the horizon. North is at the top of the screen. If you hold the unit facing
north, you can use it to see which satellites are obstructed by obstacles
in your immediate area. The GPS receiver is tracking satellites that are
in bold type. The receiver hasn't locked onto a satellite if the number is
grayed out, which means it isn't being used to resolve the position.
Beneath the circular graph are the bar graphs, one for each satellite in
view. Since the unit has 16 channels, it can dedicate one channel per
visible satellite. The taller the bar on the graph, the better the unit is
receiving signals from the satellite.
The Estimated Position Error (EPE), shown above the bar graphs, is
the expected error from a benchmark location. In other words, if the
EPE shows 50 feet, then the position shown by the unit is estimated to
be within 50 feet of the actual location. This also gives you an indicator
of the fix quality the unit currently has. The smaller the position error
number, the more accurate the fix. If the position error flashes dashes,
then the unit hasn't locked onto the satellites and the number shown
isn't valid.
Compass Page
This Page has a compass rose. It shows the direction you are facing and
the direction to a selected destination. When you're not navigating to a
waypoint or other destination, the navigation screen looks like the one
in the image below. No graphic course information is displayed. An ar-
row on the edge of the compass represents your facing direction.