Garmin International Inc 00991 Manuel D’Utilisation

PRELIMINARY

PRELIMINARY

The Garmin GMR 404/406 transmits a narrow beam of microwave 

energy in a rotating 360° pattern. When the transmitted energy 

contacts a target, some of that energy is refl ected and returned to the 

scanner. The scanner collects the returned energy for processing and 

display. The GMR 404/406 is operated and adjusted using controls 

on the Gamin chartplotter. Radar data is presented on a dedicated 

Radar Page or as an overlay on the Map page. All radar controls are 

accessible on both pages.

With the GMR 404/406 radar properly installed, at power up, the 

Garmin chartplotter should detect the GMR 404/406 as a new 

network connection. 

Note:   A  software update may be needed for the GMR 404/406 to 

function properly. If the message “Incompatible Software 

Version” is displayed when the chartplotter is powered on, the 

software in the chartplotter needs to be updated. A software 

update card is provided with the GMR 404/406.

When the new radar is detected, the chartplotter automatically 

adds a dedicated Radar Page to the pages list. If the Radar Page is 

not available, press and hold ADJ/MENU until the Main Menu is 

displayed. Use the Rocker to highlight the System tab, and select 

Radar from the Services list at the bottom of the page.

1.  Press 

PAGE to display the Pages list. 

2.  Using the 

Rocker, select Radar.

3.  Press 

ENTER. 

 GMR 404/406 O

PERATION

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VERVIEW

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GMR 404_406 Owners Manual Preliminary Review.indd   1

3/27/2006   4:08:13 PM