Pilot Specified Advisories - Garmin GNC 355 Pilot's Manual

Points About Non-WGS84 Waypoints
•
There are several types of geodetic datums that a waypoint can reference.
•
TSO-C146 requires that all waypoints reference the WGS84 datum, but allows
for navigation to coordinates not compliant with this standard as long as the
pilot is notified of the potential difference in location.
•
Not all waypoints in the navigation database reference the WGS84 datum.
For some of these coordinates the reference datum is unknown. In such cases,
the "Non-WGS84 Waypoint" advisory displays.
•
Garmin cannot determine the exact proximity of a non-compliant waypoint to
the WGS84 datum in use by the system. Typically, the distance is < 2 nm.
•
Most non-WGS84 waypoints are outside of the United States.

Pilot Specified Advisories

These advisories display when the associated timer expires or reaches a preset value.
They are informational only. No action is necessary.
ADVISORY
SCHEDULED
MESSAGE - <Text>.
Timer has expired.
190-02488-01 Rev. B
CONDITION
The custom message
timer expired.
The generic timer is past
its preset value.
Pilot's Guide
CORRECTIVE ACTION
Acknowledge message.
Edit Message key provides
direct access to scheduled
message options.
Acknowledge message.
Timers key provides direct
access to the generic
clock/timer function.
Messages
6-9