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10
AIS RECEIVER
■ AIS settings
CPA/TCPA
z CPA
Set a CPA (Closest Point of Approach)
value to between 0.1 and 6.0 NM (in 0.1
NM steps) for the alarm function.
TCPA
z
Set a TCPA (Time to CPA) value to
between 1 and 60 minutes (in 1 minute
steps) for the alarm function.
z Slow Warn
The GPS receiver calculated COG data
of a vessel that is at anchor or drifting
is unreliable, and therefore the CPA
and TCPA data may not be calculated
correctly. If a vessel is anchored in your
alarm zone, the unreliable data can
cause the collision alarm to sound many
times, even if there is no real danger.
To prevent this, when the anchored
vessel's SOG is less than this set value,
the Slow Warn function assumes that
vessel's COG is fixed towards your
vessel and an alarm will sound.
• Function
Turn the Slow Warn function ON or
OFF.
ON:
The Slow Warn function is turned
ON.
OFF: The Slow Warn function is turned
OFF.
• Speed
Set a speed for the Slow Warn function
to between 0.1 and 4.9 kn (in 0.1 kn
steps).
NOTE: If other vessels at anchor or
drifting come into your alarm zone,
the Slow Warn alarm will sound again.
Only if the previous vessel disappears
from the Danger List (p. 48), and
then re-enters the list, can a new
Slow warn or regular alarm sound,
depending on the vessel's SOG,
or CPA and TCPA. The Slow Warn
function operates in the same way
if your vessel is at anchor and other
vessels enter your alarm zone.
53
z ID Blocking
The transceiver blocks AIS
transponders that are entered into the
ID Blocking list. Enter your vessel's
transponder ID or other vessel's
transponder IDs if necessary to prevent
the transceiver from detecting them as
dangerous targets.
L You can enter up to 10 MMSI codes.
• Entering an ID
1.
Open the "ID Blocking" screen.
[MENU] > Settings > AIS >
CPA/TCPA > ID Blocking
• The blocked AIS transponder's ID is
displayed.
• "No ID" is displayed if there is no
blocked AIS transponder.
2.
Push
to start the ID entry.
3.
Enter an ID.
TIP:
• Select a number using [◄] and [►].
• Push [ENT] to enter the selected
number.
• Select "←" or "→," to move the cursor.
4.
Select "Finish," and then push
[ENT] to enter the ID.
• Editing an ID
1.
Open the "ID Blocking" screen.
[MENU] > Settings > AIS >
CPA/TCPA > ID Blocking
2.
Push [▲] or [▼] to select an ID.
3.
Push
.
• See step 3 in "Entering an ID," as
described above.
4.
Push
.
• Deleting an ID
1.
Open the "ID Blocking" screen.
[MENU] > Settings > AIS >
CPA/TCPA > ID Blocking
2.
Push [▲] or [▼] to select an ID.
3.
Push
.
• "Delete the ID. Are you sure?" is
displayed.
4.
Push
.
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