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GNC 420/420A Quick Reference
MAIN PAGE GROUPS
6
190-00140-21 Rev. F
MAIN PAGE GROUPS
The GNC 420’s main pages are divided into four
separate page groups: NAV, WPT, AUX, and NRST. Each
page group is comprised of multiple pages. The page groups
are selected using the large right knob. The individual
pages are selected using the small right knob.
Page Groups
NAV Group WPT Group AUX Group NRST Group
7 NAV Pages 10 WPT Pages 4 AUX Pages 8 NRST Pages
Current Page Group
Number of Pages in
Current Page Group
Position of
Current Page
within Current
Page Group
The bottom right corner of the screen indicates which
page group is currently being displayed (e.g., NAV, WPT,
AUX, or NRST), the number of screens available within that
group (indicated by the square icons), and the placement
of the current screen within that group (indicated by a
highlighted square icon).
Selecting the desired page group and page:
1) Press and hold the CLR Key to select the
Default NAV Page.
2) Turn the large right knob to select the desired
page group.
3) Turn the small right knob to select the desired
page.
NAV PAGE GROUP
The NAV Page Group includes seven pages.
Default NAV
Map
TERRAIN
NAV/C O M
Position Satellite Status
VNA V
(if configured)
WPT PAGE GROUP
The WPT Page Group includes ten pages.
Airport Location
Airport Runw ay
Airport F r equency
Airport Approach
Airport Arrival
Airport Departure
Intersection
NDB
VOR
User W a ypoint