GARMIN International, Inc.
9875 Widmer Road
Lenexa, KS 66215 U.S.A.
FAA APPROVED AIRPLANE FLIGHT MANUAL SUPPLEMENT
GARMIN GNC300 VHF COMMUNICATION TRANSCEIVER / GPS RECEIVER
FAA APPROVED 190-00067-03 Rev. A
DATE: 10/16/95 Page 13 of 16
RAIM Prediction
As indicated in Section 2, GPS approaches are not authorized unless RAIM is
available at the FAF. RAIM availability at the destination may be predicted
using the GNC300. To display predicted RAIM availability for the current
destination, select "RAIM Prd?" from the NAV-TIME menu. When the ENT
key is depressed with the cursor on the "Calculate RAIM" prompt, the GNC300
calculates the predicted availability of RAIM at the displayed waypoint for a
time interval of 15 minutes before, to 15 minutes after the displayed ETA.
Actual availability of RAIM may vary depending upon satellite conditions
existing upon arrival at the destination.
3. SYSTEM SWITCHES / ANNUNCIATORS
An integrated switching and annunciation unit is used with the GNC300 system.
This unit is located on the instrument panel in the pilot’s primary field of view as
illustrated below.
LAMP
TEST
NAV
GPS
ARM
ACTV
HOLD
AUTO
MSG
WPT
NAV
GPS
GPS
APR
GPS
SEQ
