Garmin GTN 650 Cockpit Reference Guide - Page 48

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