Selecting the Airport
Pressing the
LOAD CHART
key on the Custom or IFR
Map menu will present a list of airports that have
geo-referenced approach charts available. The first airport
within the list is the final destination waypoint as selected
on the external GPS navigator, with additional airports
listed based on nearest to present position search. Airports
and approach charts that are not geo-referenced will not
be shown for selection on this menu.
Note
Prior to loading an approach chart, there is
operational benefit to selecting the desired
airport on the GPS navigator as the final
destination waypoint, as the MX20 can
then detect this and place the corresponding
airport at the top of the airport list menu
for convenience.
The remaining number of airports within the list will vary
depending on the complexity of the database within the
current region and the number of geo-referenced
approach charts associated with the airports in the area.
The MX20 performs a complex filtering that eliminates
airports and associated approach charts that are not
geo-referenced, based on present position. This task is
time limited to three seconds, meaning that if extensive
filtering is required, the nearest based list may be shorter
in some circumstances than in others.
Loading the Approach Chart
Once the airport is selected, the individual approach chart
to be overlaid can be loaded from a list of geo-referenced
approach charts available for that airport.
Not all
approach charts can be overlaid in this fashion and only
geo-referenced charts will be presented for selection from
the Custom Map.
Because of this, it is possible that
approach charts that are viewable under the Chart View
Function may not be presented in this list.
89
Detailed Operation
