
Checking
GPS
Signal
Strength
The unit shows the GPS signal strength screen in
the GPS Sensor function. Make it a habit to check
this screen to make sure that the unit is properly
tracking visible satellites before you fly. The Apollo
GX55 requires signals from at least four satellites to
calculate a 3D position fix (Lat/Lon and GPS
altitude). More details are available in the GPS
Sensor part of the System section of this manual,
see page 114.
1. Press SYS and turn the Large knob to display
the GPS Sensor function. Press ENTER.
Gps Sensor
Press ENTER
2. The GPS Health page is shown if GPS
information is received. The GPS number and
dimension (2D, 3D, or no position), number of
healthy, and number of visible satellites are
shown.
GPS 3D Position
Healthy Sats 24
Visible Sats 8
Y
3. Turn the Small knob to view the GPS Satellites
Used for Position fixes page.
GPS SV’s for Fix
31, 27, 26, 19,
07, 02
ENTER
SYS
Getting Started the First Time
11