II Morrow Inc. 50 User Manual page 182

Message Function
GPS HDOP Position Error
When the HDOP for the GPS sensor exceeds current
flight phase HDOP requirements, a warning is
generated and Nav data will be flagged as invalid.
The current flight phase is displayed first (either
Terminal or En route). Approach warnings are for the
GX50/60 only. Messages become an old message after
viewing.
Parallel Track/Approach Conflict (GX50/60 Only)
This message appears when the current parallel track
conflicts with the selected approach.
Enable Approach (GX50/60 Only)
This message is generated when an approach is
loaded, but not enabled.
Approach Enabled Too Late (GX50/60 Only)
When an approach is enabled too close to the FAF
waypoint, the following message is created.
8-6
GPS
Communications
Failure
Terminal
GPS HDOP
Position Error
PTK - Approach
conflict. Press
ENT to stop PTK
Press ENTER to
Enable Approach
Abort Approach
Approach Enabled
< 2nm from FAF