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|  MIL-N-81604C(AS)
Para 3.5.5.4
(cont)
.
*
their ranges and units, shall correspond to table XXI. The
functions on the left hand side of the DATA switch (steering/
time-to-go, bearing/range, offset, flyover, and waypoint) as well
as the AUX position shall be used in conjunction with the WAY-
POINT pushbutton. Each position on the DATA switch and WAYPOINT
*
pushbutton shall be assigned to a bit in the Command Word (table
*
XIV ) .
*
a.
WAYPOINT - The WAYPOINT position of the DATA
switch shall allow the entry and display of
*
the coordinates of up to ten waypoints. The
coordinates of way points 0 thru 9 may be
displayed or entered depending upon the way-
point selected on the WAYPOINT pushbutton
*
switch.
The waypoint coordinates may be
entered either manually or automatically via
the Data Link (refer to 3.4.3.2). These
*
waypoints may be used as destinations for
*
steering or as checkpoints for performing a
position fix.
*
b.
FLY OVER - The FLYOVER position shall provide
manual position fix capability when visually
*
flying over a known waypoint and also to
provide a record capability when flying over
an unknown target.
c.
OFFSET - The function of the OFFSET switch
position is very similar to that of the FLY-
OVER switch position, except that coordinates
of the target to be recorded or the reference
coordinates for performing a position fix
shall be established by using an external
reference (e.g., radar cursors) rather than
a visual sighting. The characteristics of
the offset data inputs will be a function of
the particular CAU being used and will be
provided to the ANCU via the ANCU/CAU serial
interface channel.
d.
BRG/RNG - The left display shall display
magnetic bearing to the waypoint which has
been selected on the WAYPOINT switch. This
is independent of the waypoint to which the
aircraft is steering. The right display
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