Magnetic Variation - Garmin GTN 625 Cockpit Reference Manual

Message

MAGNETIC VARIATION-

Aircraft in area with large
mag var. Verify all course
angles.
NAV ANGLE-
NAV Angles are
referenced to True North
(T).
NAV ANGLE-
NAV Angles are
referenced to a User set
value (U).
NON-WGS84 WAYPOINT-
See CRG. Location may
be different than where
surveyed for [WPT].
OBS-
OBS is not available due
to dead reckoning or no
active waypoint.
PARALLEL TRACK-
Parallel track not
supported past IAF.
PARALLEL TRACK-
Parallel track not
supported for turns
greater than 120 degrees.
42
Description
MagVar is fl agged
as unreliable in the
MagVar database.
This normally occurs
when operating at high
latitudes that do not
support a NAV Angle of
Magnetic.
NAV angle is set to True. No action is necessary;
NAV angle is set to
User.
The active waypoint is
not referenced to the
WGS84 datum. See
Note 1 following this
table.
OBS requires an active
waypoint and is not
supported in dead
reckoning mode.
Parallel track is
not supported on
approaches.
Parallel track is not
supported for turns
greater than 120
degrees due to the
acute angle.
GTN 625/635/650 Cockpit Reference Guide (CRG)
Action
Verify that the geographical
region supports navigation
based on magnetic variation.
message is informational
only.
No action is necessary;
message is informational
only.
No action is necessary;
message is informational
only.
No action is necessary;
message is informational
only.
No action is necessary;
message is informational
only.
No action is necessary;
message is informational
only.
190-01004-04 Rev. C