Lowrance LCX-112C Operation Instructions Manual page 113

The Satellite Status Page.
This screen shows a graphical illustration 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 inner ring
represents 45° above the horizon and the large ring represents the horizon.
North is at the top of the screen. You can use this to see which satellites are
obstructed by obstacles in your immediate area if the unit is facing north.
The GPS receiver is tracking satellites represented by a blue bar. The
receiver hasn't locked onto a satellite if the number is a lighter shade;
therefore, it isn't being used to solve the position.
Beneath the circular graph are the bar graphs, one for each satellite in
view. Since the unit has twelve channels, it can dedicate one channel per
visible satellite. The taller the bar on the graph, the better the unit is
receiving the signals from the satellite.
The "Estimated Position Error" (horizontal position error) shown in the
upper left corner of the screen 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 better and more accurate the
fix is. If the position error flashes dashes, then the unit hasn't locked
onto the satellites, and the number shown isn't valid.
The Satellite Status Page has its own menu, which is used for setting
various options (Options and setup are discussed in Sec. 8.). To access the
Satellite Status Page menu, from the Status Page, press
MENU.
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