Ils Approaches - Garmin GPS 400W Pilot's Manual & Reference

5 - PROCEDURES
ILS Approach
1. Select the departure (CSTL1) from the pro-
cedures page. Then select the departure
runway (RW02, n ths example) and transton
(GEDIC).
2. As you depart the arfield, "NEXT DTK 026°"
appears n the lower rght corner of the screen
and "SUSP" appears drectly above the OBS
key. You are now on the "course from fix to
manual sequence" leg. The dstance dsplayed
on the actve flght plan, default NAV and map
pages s FROM the waypont fix (the departure
runway, n ths example).
3. Fly the outbound course keepng the CDI needle
centered. Once you are cleared to sequence to
the next leg, press the OBS key. Confirm that
"SUSP" no longer appears drectly above the
OBS key. An alert ("NEXT DTK 183°") wll
appear n the lower rght corner of the screen
to gude you to the next waypont (HFD VOR).
The actual desred track (DTK) wll depend on
your ground speed and dstance from HFD
VOR.
102
430W Only
Once the OBS key s pressed, the 400W-seres
4.
unt wll automatcally sequence to each
waypont along the remander of the departure
route, ncludng the selected transton.

ILS Approaches

Precision approaches can be performed with the
GNS 430W' s built-in VLOC (VOR/localizer/glideslope)
receivers. The GPS receiver can be used for guidance
prior to reaching the final approach fix, but once
there, the proper frequency must be selected on the
VLOC window (left side of screen) and the CDI output
set to "VLOC".
The GNS 430W can be set to automatically switch
the external CDI output from GPS to VLOC as you
intercept the final approach course (if used with a
KAP140/KFC225 autopilot, you will need to manually
enable outputs). When the ILS approach is activated,
the GNS 430W will automatically switch within 1.2
nautical miles left or right of the final approach course.
This switch can take place anywhere from 2.0 to 15.0
nautical miles from the FAF.
The illustration at right shows multiple locations
along the approach path and which CDI selection
you can expect: GPS or VLOC. Within the area of the
shaded box, the automatic switch from GPS to VLOC
should occur.
NOTE: If you attempt to intercept the approach
course at a distance less than 2.0 nautical miles
from the FAF, the GNS 430W will not automatical-
ly switch the CDI to VLOC. In this case, press the
CDI key to manually switch from GPS to VLOC.
190-00356-00 Rev B