Garmin Appliance Data User's Guide Page 23

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11190-00607-02 Rev D
Getting Started
Advisory Hot Key
Thumbnail Feature
The Thumbnail feature provides a small map
depiction that is overlaid in the upper left corner of
the GMX 200 display. It provides for enhanced traffic
and terrain situational awareness when not specifi-
cally viewing traffic or terrain related functions. For
example, both traffic and terrain situational awareness
can be maintained while viewing the Flight Plan Func-
tion.
Obstructions
Traffic
Terrain
Zoom Level
Ownship
Thumbnail view of conflicting terrain and traffic
The Thumbnail is shown in both a small and large
format, depending on the function currently being
viewed. The Thumbnail is typically presented in the
larger format when overlaid on a map. However, on
some functions where the Thumbnail would overlay
critical information, the smaller format is utilized.
The Thumbnail provides a fixed 5 NM range view
with a solid circle and a 2 NM inner circle. The range
depicted by the Thumbnail is not affected by the cur-
rent zoom scale set on the main map functions.
Traffic on Thumbnail
TIS, TAS, TCAS, or ADS-B traffic is shown on the
Thumbnail in the same symbology used within the Traf-
fic Function. Any traffic within sensor range and 5 NM
is shown, in addition to traffic causing an amber Traffic
Alert (TA) traffic. Note that the GMX 200 supports one
traffic sensor in any installation.
Terrain on the Thumbnail
Only “Red” terrain within the 5 NM range is pre-
sented on the Thumbnail. This correlates directly to
terrain that is rendered in red on the normal Terrain
Function based on the internal terrain database. Exter-
nal TAWS-based terrain from the Goodrich Landmark
is not shown on the Thumbnail.
Obstructions on the Thumbnail
Only “Red” obstructions within the 5 NM range are
presented on the Thumbnail. This correlates directly
to obstructions that are rendered in red on the other
functions.
Thumbnail Activation
The Thumbnail incorporates logic that will either
show or hide the thumbnail from view. It will only
be shown when there is data to be presented and will
be removed if not. For example, if there is no “Red”
terrain or traffic within 5 NM, the Thumbnail will be
hidden from view. The Thumbnail will not appear
on the Traffic Function page if only traffic would be
presented in the Thumbnail. Correspondingly, it is
not shown on the Terrain page if only terrain would
be presented in the Thumbnail. This logic eliminates
redundant views that would be created by the Thumb-
nail and normal views of traffic and terrain. Addition-
ally, the Thumbnail is disabled while operating on the
ground. This state is determined by the “En Route/
Ground Transition Speed” set in the System Function
page and is based on GPS ground speed.
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