Synthetic Vision; Terrain Information - Garmin G3X Pilot's Manual

Hazard Avoidance
Terrain and obstacle databases are referenced to MSL. Using the GPS position
and altitude, the Terrain feature portrays a 2-D picture of the surrounding terrain and
obstacles relative to the position and altitude of the aircraft. GPS position and GPS-
MSL altitude are used to calculate and predict the aircraft's flight path in relation to the
surrounding terrain and obstacles. In this way, the pilot can view predicted dangerous
terrain and obstacle conditions.
Alert windows appear on all pages (except the Terrain (TER) Page) to inform the
pilot of proximity to the terrain and obstacles, as well as an unsafe descent rate. These
alerts depend on user-defined parameters in the Terrain Page setup.

SYNTHETIC VISION

Terrain is integrated within Synthetic Vision (when active) to provide land contours
(colors are consistent with those of the topographical map display), large water
features, towers, obstacles over 200' AGL, as well as visual and auditory alerts to
indicate the presence of terrain and obstacle threats relevant to the projected flight
path. Synthetic Vision terrain information is displayed in red and yellow shading on the
PFD. Refer to section 8.1 (Synthetic Vision) for more information.

TERRAIN INFORMATION

The areas of the terrain shaded red are predicted to be within 100 feet below or
above the aircraft. The yellow terrain areas are between the user-defined Caution
Elevation and 100 feet below the aircraft. By default, the Caution Elevation is 1,000
feet; therefore, the areas in yellow are between 1,000 feet and 100 feet below the
aircraft. The black areas are further than the Caution Elevation. A projected point of
impact is marked with an "X" symbol.
Enabling/Disabling Terrain Shading on the Map Page:
From the Map Page with the VFR Map displayed, press the TERRAIN
Softkey.
Or:
1) From the Map Page, press the MENU Key.
2) Turn or move the FMS Joystick to highlight 'Set Up Map', and press the
ENT Key.
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Garmin G3X Pilot's Guide 190-01115-00 Rev. G