Garmin GNS 430 - Manual (Page 48)

GNS 430(A) Pilot’s Guide and Reference 190-00140-00 Rev. P
SECTION 3
NAV PAGES
3-14
3.5 TERRAIN PAGE
NOTE: The TERRAIN Page does not appear on
GNS 430 units that are not properly equipped
with or configured for TERRAIN. See Section 11
for a full description of TERRAIN functions.
TERRAIN Page
To display the TERRAIN Page, select the NAV Page
Group and turn the small right knob until the TERRAIN
Page is displayed (Figure 3-26 and 3-27). The TERRAIN
Page displays:
• GPS-derived MSL altitude shown in increments
of 20 feet or 10 meters, depending on unit
configuration. The ‘G’ to right of the MSL altitude
display reminds the pilot that altitude is GPS-
derived.
• Aircraft ground track
• Terrain Range - Indicates the terrain elevation in
colors relative to the aircraft altitude
• Range marking rings - (1 nm, 2 nm, 5 nm, 10 nm,
25 nm, 50nm, and 100 nm)
• Heading Indicator - The heading indication on the
TERRAIN Page always displays ‘TRK’ for Track-
up, unless there is no valid heading
• Obstacles
• Potential Impact Points
Figure 3-26 TERRAIN Page 120˚ View
GPS-derived
MSL Altitude
Red Terrain (Warning - Terrain Above or
Within 100’ Below Aircraft Altitude)
Number of Pages in
Current Page Group
Position of
Current Page
within Current
Page Group
Current Page Group
Heading
Indicator
Figure 3-27 TERRAIN Page 360˚ View
Yellow Terrain (Caution
- Terrain Between 100’
and 1000’ Below Aircraft
Altitude)
Black Terrain (No Danger
- Terrain More than
1000’ Below Aircraft
Altitude)
Range
Marking
Ring
Selectable Display Settings
The TERRAIN Page has two selectable view settings:
• 360˚ View - View from above aircraft depicting
surrounding terrain on all sides
• 120˚ View - View of terrain ahead of and 60˚ to
either side of the aircraft flight path (Figure 3-26)
NOTE: The TERRAIN Page gives a ‘Track Up’
display orientation, as indicated by the ‘TRK’
label shown on the display. This is the only
orientation available on this page.