Apollo 65 - Manual (Page 305)

Cross Track Deviation: The distance that your are
away from your intended course.
CTAF: Common Traffic Advisory Frequency.
D Database: A collection of data structured in such a
way as to allow quick and convenient access to any
particular record or records. The Apollo GX contains
a built-in database of waypoints and waypoint
information. Users may add waypoints to this
database.
Declination: The difference between True North and
Magnetic North. A magnetic declination of 19ºE
means that Magnetic North is 19ºE of True North.
Declutter: The ability to select the waypoint types
and symbols that are displayed on the moving map.
Degree: 1/360th of a circle.
Departure: The first waypoint in the active route.
15-3
Glossary
True
North Magnetic
North
Declination,
E xº
TO
WPT
FROM
WPT
North
Distance
Off Track