Garmin 300XL Pilot's Manual And Reference page 130

APPENDIX
MESSAGES &
D
ABBREVIATIONS
Offset nav cancelled
Offset nav in effect
Ofst too big for rte
Osc needs adjustment
Poor GPS coverage
Prox alarm-press NAV
Proximity overlap
Proximity wpt locked
120
- Offset navigation has been cancelled due to a
direct-to operation or modification of the
active route.
- Offset navigation mode is in effect.
- The parallel track distance is too large for the
active route.
- The GNC 300XL has detected excessive drift in its
internal crystal oscillator which may result in longer
acquisition time. The unit should be taken to an
authorized GARMIN service center immediately.
- The GNC 300XL cannot acquire sufficient
satellites necessary to provide navigation.
- Your craft has penetrated the alarm circle of a
proximity waypoint. Press NAV to see the bearing
and distance to the proximity waypoint.
- The circles defined by two proximity way-
points overlap. When entering the area of the
overlap, the GNC 300XL will warn you of the
closest proximity waypoint, but not both. You
should be certain this condition is desirable.
- At least one proximity waypoint is locked
because the waypoint has been removed from
the Jeppesen NavData®, the data card is miss-
ing, 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 data-
base change.
Proximty wpt deleted - One or more proximity waypoints were deleted
while receiving data from the PC Interface Kit.
Pwr down and re-init - The GNC 300XL 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 currently 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 alternate source of navigation. If
the warning occurs during the final approach
segment (FAF to MAP), execute the published
missed approach.
RAM failed - The GNC 300XL has detected a failure in its
internal memory. If the message persists, the
GNC 300XL is unusable and should be taken
to an authorized GARMIN service center.
Rcvr needs service - The GNC 300XL has detected a condition
requiring service in the receiver hardware.
The GNC 300XL should be taken to an
authorized GARMIN service center.
Ready for navigation - The GNC 300XL is ready for navigation.
Receiver failed - The GNC 300XL has detected a failure in the
receiver hardware. If the message persists, the
GNC 300XL is unusable and should be taken
to an authorized GARMIN service center.