Furuno FR-2805 Series - Manual (Page 45)

1-30
1.29 Zoom
The zoom function is available on the R-
type radar only to enlarge an area of in-
terest.
1. Place the cursor (+) close to the point
of interest by operating the trackball.
2. Press the X2 ZOOM key. The area
around the cursor and own ship is en-
larged twice as large as the original size
and the label ZOOM appears at the
lower-left corner of the screen.
3. To cancel zoom, press the X2 ZOOM
key again.
Note: The zoom feature is inoperative
when the display is off centered.
HL
OFF
ECHO
TRAILS
MODE
ORIGIN
MARK
VECTOR
TRUE/
REL
VECTOR
TIME
GUARD
ALARM
EBL
OFFSET
OFF
CENTER
X2
ZOOM
BKGR
COLOR
INDEX
LINES
ZOOM key is available on R-type only.
Blank key top on N- and G-types.
+
Cursor
+
(a) Cursor placed at
point of interest
Cursor
(b) Zoom in
(R-type only)
1.30 Markers
Heading marker
The heading marker indicates the ship's
heading in all presentation modes. It ap-
pears at zero degrees on the bearing
scale in head-up mode, in any direction
depending on the ship orientation in north-
up and true motion modes.
Temporarily erasing heading marker
To temporarily extinguish the heading
marker to look at targets existing dead
ahead of own ship, press the HM OFF
key on the mode panel. The heading
marker reappears when the key is re-
leased.
North marker
The north marker appears as a short
dashed line. In the head-up mode, the
north marker moves around the bearing
scale in accordance with the compass
signal.
Stern marker
The stern marker (a dot-and-dash line)
appears opposite to the heading marker.
This marker can be displayed on the R-
type only provided that STERN MARK ON
is selected on the RADAR 2 menu.
1.31 Menu Keys
Three menu keys are provided on the plot-
ting keypad: RADAR MENU, E-AUTO
PLOT MENU and NAV MENU keys.
RADAR MENU: Permits setting of basic
radar parameters.
E, AUTO PLOT MENU: Provides a choice
of standard or large size of plotting sym-
bols for plot.
NAV MENU: Provides a choice of navi-
gation data for on-screen display. Also
selects display data for the Video Plotter.
ORIGIN
MARK
VECTOR
TRUE/
REL
VECTOR
TIME
RADAR
MENU
ORIGIN
MARK
VECTOR
TRUE/
REL
VECTOR
TIME
E,AUTO
PLOT
MENU
TARGET
DATA
TARGET
BASED
DATA
AUTO
PLOT
TRIAL
LOST
TARGET
HISTORY
MARK
CHART
ALIGN
VIDEO
PLOT
NAV
MENU
1 2 3
6 5 4
7 8 9
ENTER
CANCEL
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