Option) 6.1 General; Keys Used For Auto Plotter - Furuno FR-7062 Operator's Manual

6.1 General
The Auto Plotter ARP-10 is an optional circuit
board which is accommodated in the display
unit of the FR-7062 radar.
The Auto Plotter permits manual or automatic
acquisition and automatic tracking of up to 10
radar targets. An internal microprocessor cal-
culate target data such as speed and course and
displays the results in alphanumeric and by vec-
tors. To ensure the reliability of the displayed
target data, the radar must be properly adjusted
for minimum sea returns and noise.
Principal specifications
Acquisition and tracking
Acquisition of up to 10 targets between 0.2
and 16 nm.
Automatic tracking of up to 10 acquired tar-
gets between 0.1 and 16 nm.
Vectors
Vector length: 30 s, 1, 3, 6, 15, 30 min.
Orientation: True velocity or relative velocity
Past positions
5 past positions at intervals of 15, 30 s, 1, 2, 3,
6 min.
Alarm
Visual and audible alarms against targets vio-
lating CPA/TCPA limits; visual alarm against
lost targets.
Target discrimination
A target measuring about 800 m or more in the
radial or circumferential direction is regarded
as a landmass and not acquired or tracked. Ech-
oes smaller than about 800 m are regarded as
true targets.
NOTICE
Heading data required for plotting
function.
6-2

6.2 Keys Used for Auto Plotter

The Auto plotter utilizes the following touchpad
keys. Given below is a brief description of these
keys.
MENU:
Displays/Erases the main menu.
SELECT/CANCEL:
(Long press) Terminates plotting of the target
selected with the cursor.
(Short press) Displays the data of target selected
with the cursor.
ACQ/ENTER:
Acquires the target selected with the cursor.
ARP-10 MENU operation
The ARP-10 MENU includes the followings:
Display:
Turns on/off the plot symbols, past positions
and target data.
All Cancel:
Cancels the tracking of all targets.
Vector Ref:
Selects relative vector or true vectors.
Vector Length:
Selects vector time.
History:
Selects past position plot interval.
CPA Set:
Selects CPA alarm limit. When a target is pre-
dicted to come within this limit, an aural alarm
sounds and at the same time the corresponding
target symbol changes to a blinking triangle.
Note: If the preset CPA limit is set at OFF, a
target which is on collision course will not pro-
duce an alarm.
TCPA Set:
Selects TCPA alarm limit.
Auto ACQ:
Turns on/off Auto Acquisition Area.