Garmin GNS 480 Pilot's Manual page 101

7. Turn right to a heading of 075° to initiate the
procedure turn. The external CDI needle starts
moving to the left. For roll steering-capable
autopilots, you may select the in bound course
(210°) and let the GNS 480 fly the procedure
turn automatically.
8. After approximately one minute, the GNS 480
will provide a message for you to "LEFT TO TRK
255°." Turn left to start the intercept.
9. The GNS 480 sequences to the inbound leg
and "LEFT TO TRK 210°" appears in the
lower right corner of the screen. CDI coupling
automatically switches from the "GPS" receiver
to the "VLOC" receiver as you complete the
inbound turn. If the ILS frequency has not been
tuned, this automatic CDI switch does not
occur.
NOTE: From this point on, primary naviga-
tion is provided by the VLOC receiver. You
may continue to use the GPS receiver for
supplemental navigation guidance only. If
automatic CDI switching is disabled. You
must press CDI to manually switch CDI
output to the VLOC receiver and continue the approach.
10. As the CDI needle starts to center, make a left turn to 210° to track the ILS approach course.
 

DO NOT USE FOR
NAVIGATION
Basic Operation
Procedures
93