Keypads For Arpa - Furuno FR-2105 Operator's Manual

2.2

Keypads for ARPA

The ARPA uses the keys on the plotting keyboard on the right side of the radar screen and
two keys on the control head.
PLOT MENU: Shows/hides ARPA menus.
Plot Symbol keys: Select specific plot symbols for
manually acquired targets.
TARGET CANCEL: Terminates tracking of a
single target specified by the trackball if the key is
pressed with a hit-and-release action. If the key is
held depressed for about 3 seconds, tracking of all
targets is terminated.
ENTER: Registers menu options selected.
VECTOR: Selects true or relative presentation of
target vectors.
TARGET DATA: Displays data on one of tracked
targets selected by the trackball.
LOST TARGET: Silences the lost target aural
alarm and erases the lost target symbol.
ACQ (on control head): Manually acquires a target.
AUDIO OFF (on control head): Silences aural
alarm.
CRITERIA OF TRACKING
A target measuring 800 m or more in the radial or circumferential direction is regarded
as a landmass and not acquired or tracked. Echoes smaller than 800 m are regarded as
targets to be tracked.
HL PANEL
OFF
BRILL
2
1
OFF
VECTOR
CENTER
4 5
CHART
EBL
ALIGN
7 8
TARGET CU, TM
TRAILS RESET
CANCEL 0
Plotting keypad
- 2 .
2-
MODE
AUDIO
RADAR PLOT
OFF
MENU MENU
3
LOST
TARGET
6
ACQ
MARK
TARGET
9
DATA
A/C
AUTO
TARGET
CANCEL
ENTER
NAV
MENU