Custom Map Menu Option Page 4
The fourth option page of the Custom Map function lets
you select options for choices of Obstructions, Traffic, and
Lightning Strikes.
Obstructions
Obstructions, such as towers and other man-made objects,
are part of the MX20 updateable database. Obstructions
over 250 feet high are shown on the maps with tower
symbols. The symbol is color coded to signify the relative
altitude of the tower to your aircraft’s altitude. Objects
that are at your altitude are shown in red; objects that are
near your altitude are shown in yellow; objects with
towers that are significantly below your altitude colored
green. Obstructions are shown on the Custom Map and in
the Terrain function.
Current coverage for obstructions is North America only
and are drawn only when the zoom level is below 50nm.
Traffic
The Traffic option turns the display of traffic information
on or off. Traffic information includes the location and
identifier of a reporting aircraft, its direction of travel,
elevation, and the estimated path for the selected time
interval. See the section on the Traffic mode for more
details on how traffic information is used.
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Detailed Operation