Aspen Avionics Evolution EFD 1000 C3 Pro PFD - CDI Nav Source Select Button

CHAPTER 2 CONTROLS AND DISPLAY
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091-00019-001 REV B
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091-00019-001 REV B EFD1000 C3 Pro PFD Pilot’s Guide
2.2.2.1. CDI Nav Source Select Button
The CDI Nav Source Select Button is the center button (Figure 2-7). It selects which
of the available navigation sources will couple to the CDI, which in turn couples to
the autopilot (if available). Each press of the CDI Nav Source Button selects the next
available nav source, cycling through all available sources in a round-robin sequence.
The currently coupled CDI nav source is displayed directly above the CDI Nav Source
Select Button.
The available nav sources are congured when the PFD was installed (depending on
what is installed in the aircraft and connected to the PFD). The available nav source
choices are: GPS1, GPS2, VLOC1, and VLOC2.
If a nav source is congured to be available, but is not providing valid navigation data,
its nav source annunciation will be shown with a red slash through it, and the CDI will
not be shown with the Course Pointer. The pilot is able to select the invalid source, but
no navigation data is provided.
When one or more of the connected nav sources is a combined GPS/Nav device (e.g.,
some of the Garmin 400/500-series), the list of nav sources available for selection will be
determined by the current CDI mode of the GPS navigator.
Figure 2-7
CDI and Bearing Pointer Source Select Buttons
Single-Line
Bearing Pointer
Source
CDI Nav
Source
Double-Line
Bearing Pointer
Source
NOTE
When GPS is selected as the CDI’s nav source, but no
active waypoint is programmed in the GPS navigator,
that source will be shown as invalid until an active
ight plan or direct-to waypoint is programmed into
theGPS.
For example, with a Garmin GNS-430 installed as
the #1 navigation source, when “GPS” is shown
immediately above the CDI Button on the GNS-430,
the PFD will show GPS1 as an available , but invalid,
nav source. When the pilot presses the CDI Button on
the GNS-430 so that VLOC is now displayed on the
GNS-430, the PFD will show VLOC1 as the available nav
source, and GPS1 cannot be selected.