Marpa Targeting Symbols; Assigning A Marpa Tag To An Object; Removing A Marpa Tag From A Targeted Object; Viewing Information About A Marpa-Tagged Object - Garmin AQUAMAP 10x2 Series Owner's Manual

tagged object and provides you with information about the object, including
the range, bearing, speed, GPS heading, nearest approach, and time
to nearest approach. MARPA indicates the status of each tagged object
(acquiring, lost, tracking, or dangerous), and the AQUAMAP can sound a
collision alarm if the object enters your safe zone.

MARPA Targeting Symbols

Acquiring a target. Concentric, dashed green rings radiate from the
target while the radar is locking onto it.
Target has been acquired. A solid green ring indicates the location of
a target that the radar has locked onto. A dashed green line attached
to the circle indicates the projected course over ground or the GPS
heading of the target.
Dangerous target is in range. A red ring flashes from the target while
an alarm sounds and a message banner appears. After the alarm has
been acknowledged, a solid red dot with a dashed red line attached to it
indicates the location and the projected course over ground or the GPS
heading of the target. If the safe- zone collision alarm has been set to
Off, the target flashes, but the audible alarm does not sound and the
alarm banner does not appear.
Target has been lost. A solid green ring with an X through it indicates
that the radar could not lock onto the target.
Closest point of approach and time to closest point of approach to a
dangerous target.

Assigning a MARPA Tag to an Object

Before you can use MARPA, you must have a heading sensor connected
and an active GPS signal. The heading sensor must provide the NMEA 2000
parameter group number (PGN) 127250 or the NMEA 0183 HDM or HDG
output sentence.
1 From a radar screen, select an object or location.
2 Select Acquire Target > MARPA Target.
AQUAMAP™ 10x2/12x2 SERIES

Removing a MARPA Tag from a Targeted Object

1 From a radar screen, select a MARPA target.
2 Select MARPA Target > Remove.

Viewing Information about a MARPA-tagged Object

You can view the range, bearing, speed, and other information about a
MARPA-tagged object.
1 From a radar screen, select a targeted object.
2 Select MARPA Target.

Viewing a List of AIS and MARPA Threats

From any radar screen or the radar overlay, you can view and customize the
appearance of a list of AIS and MARPA threats.
1 From a radar screen, select MENU > Other Vessels > List > Show.
2 Select the type of threats to include in the list.

Showing AIS Vessels on the Radar Screen

AIS requires the use of an external AIS device and active transponder signals
from other vessels.
You can configure how other vessels appear on the Radar screen. If any
setting (except the AIS display range) is configured for one radar mode,
the setting is applied to every other radar mode. The details and projected
heading settings configured for one radar mode are applied to every other
radar mode and to the Radar overlay.
1 From a radar screen or the radar overlay, select MENU > Other Vessels
> Display Setup.
2 Select an option:
• To set the distance from your location within which AIS vessels appear,
select Display Range, and select a distance.
• To set the relative speed within which AIS vessels appear, select
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