Avidyne IFD540 Pilot's Manual page 147

User Option Item Title
FLTA Exclusion Areas
Top of Descent (TOD) Aural
Bearing Reference
Distance/Speed Units
AUX Pages 4-39
Description
aural alert issued during FLTA
warning conditions.
On* - Turns the FLTA
Exclusion area on resulting in
hatched white polygons around
airfields and no FLTA alerts
when inside the exclusion
areas;
Off – Turns the FLTA Exclusion
area off resulting FLTA alerts
even in the proximity of
airfields.
On* - Enables TOD aural alert
chime;
Off – Disables TOD aural alert
chime.
Magnetic* - Sets map
orientation and all datablock
information to magnetic
reference;
True – Sets map orientation
and all datablock information to
true reference. By selecting
True, the map orientation will
display in True North when
"North Up" view selected on
the map page.
nm/knots* - distance units will
be displayed in nautical miles
and speed units will be
displayed in knots;
km/kph – distance units will be