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1-4
Display controls
Mode Panel
HM
OFF
ECHO
TRAILS
MODE
ORIGIN
MARK
VECTOR
TRUE/
REL
VECTOR
TIME
GUARD
ALARM
EBL
OFFSET
OFF
CENTER
X2
ZOOM
BKGR
COLOR
INDEX
LINES
CU, TM
RESET
INT
REJECT
RINGS
HM OFF
Temporarily erases the heading marker.
ECHO TRAILS
Shows trails of target echoes in the form
of simulated afterglow.
MODE
Selects presentation modes: Head-up,
Head-up/TB, North-up, Course-up and
True Motion.
GUARD ALARM
Used for setting the guard alarm.
EBL OFFSET
Activates and deactivates off-centering of
the sweep origin.
BKGR COLOR
Selects the background color.
INDEX LINES
Alternately shows and erases parallel in-
dex lines.
X2 ZOOM
Enlarges a user-selected portion of pic-
ture twice as large as normal. (R-type
only)
CU, TM RESET
Resets the heading marker to 000° in
course-up mode; moves own ship posi-
tion to 50% radius in stern direction in the
true motion mode.
INT REJECT
Reduces mutual radar interference.
RINGS
Adjusts the brightness of range rings.