Garmin Apollo GX 50 User Manual page 303

Screen Test
A full visual display test on each line of the display
and all of the annunciators is run next, preceded for
two seconds by the following screen.
The visual display incrementally lights groups of
pixels on the electroluminescent display.
Checking The unit shows the GPS signal strength screen in the
GPS Signal
GPS Sensor function. Make it a habit to check this
Strength
screen to make sure that the unit is properly tracking
visible satellites before you fly. The Apollo GX
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 17.
1. Press
SYS
ENTER
2. The GPS Health page is shown if GPS information
Starting Display
Test...
and turn the
SYS
GPS Sensor function. Press
Gps Sensor
Press ENTER
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
Start Up Displays
knob to display the
LARGE
.
ENTER
11-11