Garmin GNS 430 - Manual (Page 112)

GNS 430(A) Pilot’s Guide and Reference 190-00140-00 Rev. P
SECTION 6
PROCEDURES
6-30
Figure 6-82 ILS Approach Course
DO NOT USE FOR
NAVIGATION



Refer to Figure 6-82 for the following steps.
8) Initiate the procedure turn. The GNS 430 does
not provide guidance through the turn. (The
procedure turn is displayed on the Map Page
and indicated as the active leg on the Default
NAV Page and the Active Flight Plan Page.)
9) After approximately one minute, make a turn
to intercept the ILS. The GNS 430 sequences to
the inbound leg and ‘NEXT DTK 210°’ (Figure
6-83) appears in the lower right corner of the
screen. CDI coupling automatically switches
from the GPS receiver to the VLOC receiver as
the pilot completes the inbound turn. (If the ILS
frequency has not been activated, per step 4,
this automatic CDI switching does not occur.)
Figure 6-83 Waypoint Alert
10) Turn to track the ILS approach course.
NOTE: From this point on, primary navigation
is provided by the VLOC receiver. The pilot may
continue to use the GPS receiver for supplemental
navigation guidance only. ALSO, when using an
external CDI (not an HSI), expect reverse sensing
when flying outbound on the approach course
or when flying a backcourse approach.
11) When approaching the FAF (SHUTR), ‘0.30nm’
appears in the lower left corner of the screen
indicating a CDI scale transition from 1.0 to 0.3
nm, full scale deflection (Figure 6-84). (This
scale transition applies only to the Default NAV
Page’s on-screen CDI, since the external CDI or
HSI is now coupled to the VLOC receiver. GPS
approach mode is not activated for precision
approaches, since the VLOC receiver must be
used for primary navigation.)
Figure 6-84 Final Approach