Garmin gtn 625 GPS Receiver User Manual


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10-2
Garmin GTN 625/635/650 Pilot’s Guide
190-01004-03 Rev. B
Foreword
Getting
Started
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Music
Utilities
System
Messages
Symbols
Appendix
Index
Terrain Proximity utilizes terrain and obstacle databases that are referenced
to mean sea level (MSL). Using the GPS position and GSL altitude, Terrain
Proximity displays a 2-D picture of the surrounding terrain and obstacles relative
to the position and altitude of the aircraft. In this manner, Terrain Proximity can
provide advanced alerts of predicted dangerous terrain conditions.
Terrain Proximity requires the following to operate properly:
•Thesystemmusthaveavalid3-DGPSpositionsolution.
•Thesystemmusthaveavalidterrain/obstacledatabase.
360
Arc
View
Flight Plan
Legend
Layers
Figure 10-1 Terrain Proximity Page Functional Diagram
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