When the Selection Pointer is in the center most column,
the fourth smart key displays the label ‘Sort’. See below
for how the sort option works.
When the Selection Pointer is in the right most column,
the fourth smart key displays the label ‘View’. When
pressed, the currently viewed message is presented in a
full screen mode. This feature provides a mechanism to
view large textual messages that do not fit within the
upper half of the display area.
Sorting FIS Messages
Special sorting capabilities are provided for in the central
‘location’ column. This sorting allows weather reports to
be sorted by location based on distance to airports in the
area.
When the green Selection Pointer is located in the second
column, the fourth smart key changes to read ‘Sort’.
When consecutively pressed, the sorting of the messages
toggle with the following options:
(Distance to) Nearest Present Position
(Distance to) Nearest Final Waypoint
(Distance to) Nearest Next Waypoint Alpha
As the sorting is based on distances from current ownship
to a given airport, the system must be able to correlate a
Jeppesen airport that matches the location field of the
received message. If this lookup is successful, a distance
shall be presented adjacent to the location text. If no
corresponding location can be determined, no distance
shall be assigned but the message shall still be presented at
the end of the list.
The default sorting method is ‘Nearest Present Position’
and is reset when the FIS Function is re-entered.
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Detailed Operation
