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Checking
GPS
Signal
Strength
After startup, the unitshows theGPS signalstrengthscreen
on the display, indicating that the navigation function is
active.
Note
While the Apollo 360 acquires signal information from
satellites, the bars representing signal strength show
grey in color. This process takes place quickly. When
the unit has acquired the signals and begins tracking
the satellites, the bars change to black.
The GPS signal strength screen is the first to show on
the display after the unit starts up. Make it a habit to
check this screen to make sure that the constellation of
satellites are healthy and that the unit is properly
tracking visible satellites before you fly.
In this example, the screen shows that six satellite signals
are being received. The question mark symbol (?) is
highlighted, indicating that information on the display
relates to all visible satellites. The Apollo 360 requires
signals from at least four satellites to calculate a 3D
position fix (lat/lon and GPS altitude).
Apollo 360 GPS Receiver Getting Started
P/N 560-0123-01 B 3-5