10-14
GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. N
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
Terrain Overlay
Flight Plan
Alert
Annunciation
Terrain
Legend
Obstacles
Icon shows point
obstacle overlay is active
(software v5.12 or later)
Icon shows wire
obstacle overlay is active
(software v5.12 or later)
Figure 10-8 Flight Plan and Legend Shown On Terrain Page
3. Touch the
Legend
key and select a legend for display on the
Terrain page. Options include terrain, obstacle, and off.
10.5.5.2 Terrain Page View
Select the 120º Arc or 360º rings overlay for the Terrain page with either the
360º
or
Arc
keys from the Menu.
1. While viewing the Terrain page, touch the
Menu
key.
2. Touch the
360º
or
Arc
key.
10.5.5.3 Terrain Alerting Selections
An inhibit function allows you to manually inhibit aural terrain alerts. After
cycling power, terrain alerting functions will no longer be inhibited.
1. While viewing the Terrain page, touch the
Menu
key.
2. Touch the
Terrain Inhibit
key to toggle the inhibiting of terrain
alerts.
3. Touch the
Test Terrain
key to perform an internal test of the
terrain alerting system. This function is not available when the
aircraft is in the air.