Garmin 4212 Manual

A SERVICE OF

next previous

40 GPSMAP 4000 Series Owner’s Manual

Conguring the Device

ConfiGUrinG

the deViCe

To adjust the Keel Offset:

1. From the Home screen, select Congure > My Boat > Keel Offset.

2. Using the on-screen keyboard, enter the measured distance from the transducer location to the

water line or to the keel of the boat.

If you are measuring down to the keel (transducer installed at the water line), enter a (+)

positive number. This shows the depth at the bottom of the keel.

If you are measuring up to the water line (transducer installed on the bottom of the keel), enter

a (-) negative number. This shows the depth at the surface.

3. Select an option:

Select Done to accept the number.

Select Cancel to cancel your changes and return to the My Boat screen.

Transducer at the water line

Transducer at the bottom of

the keel

Keel Offset

A (+) positive number

shows depth at the bottom

of the keel.

A (-) negative number

shows depth at the surface.

Conguring Other Vessels

NOTE: To congure AIS or DSC information for other boats, your chartplotter must be connected to an

external Automatic Identication System (AIS) or Digital Selective Calling (DSC) device.

From the Home screen, select Congure > Other Vessels.

AIS

—turn AIS on or off. AIS alerts you to area trafc by providing boat IDs, position, course, and

speed for boats equipped with a transponder.

DSC—turn DSC on or off.

Collision Alarm

(AIS and MARPA only)—turn a safe zone around your boat on or off. This is used

for collision avoidance, and can be customized.

To customize safe-zone settings:

1. From the Home screen, select Congure > Other Vessels > Collision Alarm.

2. Select one or both of the following options:

Select Range to change the measured radius of the safe-zone ring to a specied distance,

from 500 ft. to 2.0 nm (or from 150 m to 3.0 km, or from 500 ft. to 2.0 mi.).

Select Time To (Safe Zone) to sound an alarm if Automatic Identication System (AIS) or Mini

Automatic Radar Plotting Aid (MARPA) determines that a target will intersect the Safe Zone

within the dened time interval (ranging from 1 to 24 minutes).

•

•

•

•

•

•

•