Garmin International Inc 00991 Manuel D’Utilisation

PRELIMINARY

PRELIMINARY

GMR 404/406 O

PERATION

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T

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ADAR

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DJUSTMENT

 M

ENU

1.  Use the 

Rocker to highlight the desired fi eld and press 

ENTER to activate the fi eld selections.

2.  Use the 

Rocker to highlight the desired selection.

3.  Press 

ENTER to accept the change.

Vector Length —predicts the target’s approximate position at a set 

time interval. This setting determines the length of the Vector Line, 

based on the time interval setting and the target’s speed. The time 

interval settings range from .05 minutes to 60 minutes.
Target History—is a trail showing a targets movement. Target 

History can be turned On or Off.

 Own Vessel Safe Zone—is a circular area defi ned by a range setting 

that is centered on your own vessel. If a target enters the defi ned area 

an alarm is sounded. The Safe Zone can be set to a distance between 

.01 and 2 nautical miles.
 Time To Safe Zone—sounds an alarm if MARPA determines that a 

target will intersect the Own Vessel Safe Zone within the defi ned time 

interval. The time interval settings range from 3 to 24 minutes.
 Safe Zone Ring—displays a ring on the Radar Page depicting the 

Own Vessel Safe Zone.
 Velocity Reference—has two settings, Absolute and Relative. This 

setting determines how speed and direction are displayed on the 

MARPA list. Relative calculates target speed and direction relative to 

your own. Absolute displays the target’s actual speed.

This setting hides or shows navigation features such as Waypoints, a 

Bearing Line and a Course Line on the Radar Page. See page 16 for 

more information on selecting the Navigation Features.

There are three additional items available on the Adjustment Menu: 

 Map Cursor On/Off,  Setup, and  Enter Standby/ Begin Transmitting.

GMR 404/406 O

PERATION

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GMR 404/406 O

PERATION

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GMR 404_406 Owners Manual Preliminary Review.indd   13

3/27/2006   4:08:20 PM