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Poor GPS coverage - The GPS 155 cannot acquire sufficient satellites necessary to
provide navigation.
Prox alarm-press NAV
- Your craft has penetrated the alarm circle of a proximity waypoint.
Press
N
to see the bearing and distance to the proximity waypoint.
Proximity overlap - The circles defined by two proximity waypoints overlap. When
entering the area of the overlap, the GPS 155 will alarm you of
the closest proximity waypoint, but not both. You should be
certain this condition is desirable.
Proximity wpt locked - At least one proximity waypoint is locked because the waypoint
has been removed from the Jeppesen NavData®, the data card
is missing, or the data card has failed.
Proximity wpt moved - One or more proximity waypoints were moved at least 0.33 arc
minutes due to a database change.
Proximty wpt deleted - One or more proximity waypoints were deleted while receiving
data.
Pwr down and re-init - The GPS 155 is unusable until power has been cycled and the
unit re-initialized. Abnormal satellite conditions may exist.
RAIM not available - RAIM is unavailable for the phase of flight you are in (the HSI
NAV flag should also appear). Revert to alternate navigation.
RAIM position warn - RAIM has detected position errors exceeding those allowed for
a given phase of flight. Revert to an alternative source of navi-
gation.
RAM failed - The GPS 155 has detected a failure in its internal memory. If
the message persists, the GPS 155 is unusable and should be
taken to an authorized GARMIN service center.
Ready for navigation - The GPS 155 is ready for navigation.
Received invalid wpt - A waypoint was received in an upload operation that has an
invalid identifier or position.
102
APPENDIX C
Messages
155man (GOOD) 7/24/98 1:57 PM Page 102