Garmin gpsmap 4008 用户手册

Using Radar

When you connect your chartplotter to an optional Garmin marine radar such as a GMR 404/406 

or a GMR 18, you can view more information about your surroundings. The Garmin marine radar 

connects through the Garmin Marine Network and shares radar data with all networked chartplotters.
The Garmin marine radar transmits a narrow beam of microwave energy as it rotates in a 360º 

pattern. When the transmitted energy contacts a target, some of that energy is reflected back to the 

radar. 

  WARNING: The marine radar transmits microwave energy that has the potential to be harmful to 

humans and animals. Before beginning radar transmission, verify that the area around the radar is clear. 

The radar transmits a beam approximately 12° above and 12° below a line extending horizontally from 

the center of the radar. Avoid looking directly at the radar, because the eyes are the most susceptible part 

of the body.

1.  When you power the network on, the radar warms up. A countdown is provided to alert you when 

the radar is ready. From the Home screen, press 

.

  NOtE: As a safety feature, the radar enters standby mode after it warms up. This gives you an 

opportunity to verify that the area around the radar is clear before beginning radar transmission. The 

microwave energy transmitted by the radar can potentially be dangerous. 

2.  When the message “Ready to Transmit” appears, press or touch 

.

3.  On the lower-right portion of the screen, select 

. A “Spinning Up” message 

appears for a few moments, then the radar begins painting an image.

➊

➋

➌

1.  Press and release the   

 key on the chartplotter (do not hold the button, or you may shut 

down the chartplotter), or press 

.

2.  Select 

.