iv
Introduction
Table of Contents
Section 5: Temperature, Dewpoints, and Winds .........................................................................24
Displaying Temperature/Dewpoints ....................................................................................................
24
Displaying Wind Data ........................................................................................................................
24
Section 6: Troubleshooting ..........................................................................................................25
Monitoring the Data Link ..................................................................................................................25
GDL 49 Datalink Status .....................................................................................................................26
GDL 69/69A Datalink Status ..............................................................................................................27
PART THREE:
TERRAIN INTERFACE
Section 1: Introduction ...............................................................................................................29
Overview ...........................................................................................................................................
29
Operating Criteria ..............................................................................................................................29
GPS Position and GPS-MSL Altitude ..................................................................................................29
TERRAIN Alerting using the GPS Position/GPS-MSL Altitude ............................................................30
Baro-Corrected Altitude verses GPS-MSL Altitude ..............................................................................
30
Premature Descent Alerting (PDA) using GPS-MSL Altitude ...............................................................
30
Limitations .........................................................................................................................................31
Section 2: TERRAIN Operation ....................................................................................................32
Power Up ...........................................................................................................................................32
TERRAIN Page ..................................................................................................................................32
Inhibit Mode ......................................................................................................................................33
TERRAIN Symbols .............................................................................................................................34
Color Interpretation ...........................................................................................................................
34
General Database Information ............................................................................................................35
Database Versions ..............................................................................................................................
35
Database Updates ...............................................................................................................................35
