Lost Target; Setting The Lost Target Filter; Enabling, Disabling The Lost Target Alert - Furuno FAR-2807 Operator's Manual

3.7

Lost Target

Targets not detected in five consecutive scans become "lost targets." A lost
target is shown in the display with flashing red "X". Flashing stops after lost
target alert is acknowledged.
If you are in an area where tracked targets are lost frequently you may want to
disable the lost target alert against tracked targets by maximum range or
minimum speed.
3.7.1

Setting the lost target filter

You can set the lost target alert to sound against lost TTs that are within a
specific range or ship speed. Set the criteria as below.
1. Left-click the MENU box to open the menu.
2. Select 4 [TT
3. Select 9 [TT LOST FILTER].
4. Set items 2 and 3 as appropriate, referring to the description below.
MAX RANGE:
MIN SHIP SPEED: Any TT lost targets slower than this setting will not trigger
5. Push the right button several times to close the menu.
Note: Reference targets are not affected by this filter.
3.7.2

Enabling, disabling the lost target alert

The LOST TARGET ALERT box at the bottom right corner enables and disables
the lost target alert. Select OFF, ALL or FILT as appropriate.
OFF: Disable the alert
ALL: Get the alert against all lost targets.
FILT: Get the alert against the targets whose
criteria meet the settings on the TT
LOST FILTER menu.
. .
AIS] to open the TT
[TT LOST FILTER]
1 BACK
2 MAX RANGE
OFF/ON
0NM
3 MIN SHIP SPEED
OFF/ON
0.0kn
Any TT lost targets beyond this range will not trigger the
lost target alert.
the lost target alert.
3. TARGET TRACKING (TT)
AIS menu.
LOST TARGET ALERT OFF
LOST TARGET box
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