(iii)
Press
the
GZ
key.
The
guard zone
is
set
and
displayed
as
an
area
bounded by
solid
lines.
The
angle of
the
guard zone
is
set
in
5.625
degree increments.
To
change the guard zone
area,
press
the
GZ
key. The
area
will
change
as
45,
90,
180,
and
360
degree,
and move
to
the current
VRM
and
EBL
position.
If
a target trespasses into the guard zone, an
audible alarm sounds (pi
-
pi). The
alarm
sounds until
the
GZ
key
is
pressed.
If
a
new target trespasses into the
guard zone, the
alarm
sounds again.
To erase
the
guard zone,
press
the
GZ
key more than
3
seconds.
Notes:
1
The ward zone
is
maintained even if the range
2.10
2.11
2.12
2.13
-
key
is
used to change the distance.
external buzzer
(see
5.8).
2
If
the
powerful
alarm
is
required, install
an
Off
-
Centering
the screen
must
be
observed more
clearly
or
widely.
the
60%
backward
of
the
screen.
Press
the
OFF
-
C
key once
more.
It
will
move to
the
60%
forward of the
screen.
And
then,
another press moves the picture center to the center
of
the
screen.
This
function
is
used when the picture
in
an end of
Press
the
OFF
-
C
key.
The
picture center
will
move to
Rejecting Interference
from
Other
Radars
this
function, refer to
"
2.14
Setup Modes, Selecteble
Key
"
.
2.11.1
What
is
Radar Interference?
the same frequency band
is
operating
near
your ship. The
form of
the
interference pattern
is
not constant;
it
may
be
broken
-
line
arc
or
a broken line. Since interference
echoes vary
with
every scan period,
it
is
easy to
distinguish interference patterns from normal echoes.
2.11.2
Rejecting Radar Interference
(IR)
standard.
Erasing Beading
Marker
this
function,
refer
to
"
2.14
Setup Modes, Selectable
Key
"
.
use this function
to
erase
the
heading marker.
Selecting Display Mode
this
function, refer to
"
2.14 Setup Modes, Selectable
Key
"
.
This
function,is not
set
to
a
key as standard. To
use
Radar interference may occur when another radar on
The
interference
reject
function
is
equipped as
This
function
is
not
set
to a key as standard. To use
When a target
is
masked by the heading marker line,
This
function
is
not
set
to a key as standard. To use
When Gyro compass
is
connected to the radar, the
display mode can
be
changed to;
2
-
8
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