4-9
Button Operations Map
4
S
Y
N
C
SYNC
PUSH: Heading sync. Immediately moves the heading bug
to the current heading
HOLD: No action performed.
SHFT›SYNC
Course sync. Sets the course pointer “direct-to” the
current nav source. If a VOR is the selected nav source,
the current radial is chosen as the direct-to course
information, and the CDI needle centers with a “TO” flag
indication. If the selected nav source is a GPS or loran,
this performs the direct-to function if auto-slew is off
(see [SHFT]>[NAV]).
If a localizer is tuned, or a received nav signal is too weak
to accurately determine the current bearing or the display
is flagged, the course pointer will be turned to the current
heading.
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