6-16
GTN 725/750 Pilot’s Guide
190-01007-03 Rev. C
Foreword
Getting
Started
Audio &
Xpdr Ctrl
Com/Nav
FPL
Direct-To
Proc
Charts
Wpt Info
Map
Traffic
Terrain
Weather
Nearest
Services/
Music
Utilities
System
Messages
Symbols
Appendix
Index
6.10 ILS Approaches (GTN 750 Only)
Precision ILS approaches can be performed with the 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 (right side of screen) and the CDI output set
to “VLOC”.
2
NM
15
NM
1.2
NM
1.2
NM
MANUAL
FAF
VLOC
VLOC
GPS
GPS
Auto Switch to VLOC
within this area
The GTN 7XX 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). See instructions in the "Enabling
Autopilot Outputs for the King KAP140/
KFC225" section. When the ILS approach is
activated (and the correct ILS frequency is
active in the VLOC window), the GTN 7XX
automatically switches within 1.2 NM left or
right of the final approach course. This
switch can take place anywhere from 2.0 to
15.0 NM from the FAF.
The illustration shows multiple locations
along the approach path and the CDI
selection that you can expect: GPS or VLOC.
Within the area of the shaded box, the
automatic switch from GPS to VLOC should
occur.
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