CHAPTER 4
REFERENCE GUIDE
EFD1000H PFD Pilot’s Guide
Page 4-32
091-00012-001 REV C
4.4.4.a. Localizer Back Course (BC) Operation
1
When flying a Back Course final approach (the aircraft heading is opposite to the localizer
front course), set the CRS value to the front course localizer or ILS approach value. The tail
of the CDI will match the back course runway’s magnetic orientation.
When the LOC(BC) mode is active, two “BC” annunciations are shown; on the Attitude
Display left of the Lateral Deviation Indicator (LDI) and on the ARC Compass left of the
Course Deviation Scale (
Figure 4-62a
). The left/right deviation indications are corrected
for reverse sensing and will behave intuitively, the same as with a front course localizer.
4.4.5. CDI Navigation Source
1
When the PFD powers up, the default Selected CDI Navigation Source is the last source
selected. The pilot can select from any of the installed navigation sources using the
Middle Button. The PFD supports navigation information display from VHF Omni-
directional Radio Range (VOR) navaids, Localizers (LOC), Glide Slope receivers (GS), and
Global Positioning Systems (GPS). There can be up to four dedicated, two integrated, or
a combination of one integrated and two dedicated navigation systems installed.
When individual GPS and VLOC devices are installed, the GPSS signal source, Basemap
GPS position, flight plan, and Basemap information for VLOC1, VLOC2, and GPS1
are provided by the GPS1 navigation source whenever GPS1 is selected as the CDI
navigation source and by GPS2 whenever GPS2 is selected as the Selected CDI
navigation source.
When integrated GPS/VLOC equipment are installed, the GPSS signal source, Basemap
GPS position, flight plan and Basemap information for the integrated GPS-VLOC is
provided by the associated GPS whenever the CDI navigation source is selected to
either the GPS side or the VLOC side of the integrated GPS/VLOC receiver.
Figure 4-62a
Back Course (BC) Annunciation Locations
1. Not available with the Pilot PFD
