iv
Introduction
Table of Contents
Monitoring the Data Link ..................................................................................................................25
GDL 49 Datalink Status .....................................................................................................................26
GDL 69/69A Datalink Status ..............................................................................................................27
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
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