Aux pages, Ro n – Garmin GNS 430 User Manual
Page 158
150
Utility Page: RAIM Prediction
To predict RAIM availability:
1. Select “RAIM Prediction” from the utility page, using the steps described on page 145.
2. The flashing cursor highlights the waypoint field. Use the small (
a
) and large (
h
) right
knobs to enter the identifier of the waypoint at which you wish to determine RAIM availability.
Press
E
when finished. (To determine RAIM availability for your present position, press
c
, followed by
E
.)
3. The flashing cursor moves to the arrival date field. Use the small (
a
) and large (
h
) right
knobs to enter the date for which you wish to determine RAIM availability. Press
E
when
finished.
4. The flashing cursor moves to the arrival time field. Use the small (
a
) and large (
h
) right
knobs to enter the time for which you wish to determine RAIM availability. Press
E
when
finished.
5. The flashing cursor moves to “Compute RAIM?”. Press
E
to begin RAIM prediction. Once
calculations are complete, the GNS 430 will display one of the following in the RAIM status
field:
• RAIM Not Available— Satellite coverage is predicted to NOT be suffi-
cient for reliable operation during non-precision
approaches
• RAIM Available—
Satellite coverage is predicted to be
sufficient for reliable operation during all flight
phases, including non-precision approaches
AUX PAGES
Utility Page
9
r
o
n
NOTE
RAIM computations predict satellite coverage within +/- 15 minutes
of the specified arrival date and time. Refer to page 153 for specific
information regarding RAIM protection limits.
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