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Gourse-Up
Mode
[GOURSE
UPI
By
pressing
this switch, the ship's heading line is
fixed
pointing
to the zenith
of
the
PPI
(0'on
range
rings). In the same way
as
in the
North-up mode, fixed targets do
not flicker,
but are
strabilized even
if the
ship
is
yawing.
The bearing of the
heading
line varies by the same shift of own
ship's course.
lf
the course
is
changed, the
heading line can be
reset
to the Course-up mode
by
pressing
the switch several
times.
Gancel Ship's
Heading
Line
[HL
OFF]
The ship's heading line
(HL)
that
presents
the course of own ship is
always displayed on the radar
display.
The heading line
is canceled while lhis
switch
is
being
pressed,
so
that the targets
on the
heading lines can be seen
easily.
CancelAll
Display
ltems Except Radar Echo,
VRM, EBL, HL,
RR,
and
Cross
Gursor Mark
[+l [DATAOFF]
'
'
r
' '
All display information such
ARPA vectors,
symbols and navigation
data may be cancelled
temporarily by
the following operations, except
Radar
echo,
VRMs,
EBLs,
HL, and cross cursor
mark
[+]
and
range rings.
@
1
ctick
mENUlon
the screen.
The MAIN
Menu will
appear.
North
North-uo Mode
Head-up Mode
349