Garmin gpsmap 545s Manuale Utente

Configuring the Chartplotter

Calibrate water Speed—use this menu to calibrate a speed-sensing 

device. Follow the on-screen directions for calibration. If you do not 

have a speed-sensing device, this menu does not appear.

  NoTiCE: If the boat is not moving fast enough or the speed sensor 

is not registering a speed, a “Speed Too Low” message appears. 

Select 

, and safely increase the speed of the boat. If you get the 

message again, stop the boat and make sure the speed-sensor wheel 

is not stuck. If the wheel turns freely, check the cable connections. If 

you continue to get the message, contact Garmin Product Support.

fuel Capacity—enter the total fuel capacity of your boat.

To configure settings for boats other than your own, from the Home 

screen, select 

 > 

.

To configure AIS or DSC information for other boats, your unit must 

be connected to an external AIS or DSC device. 
aiS—turn AIS (Automatic Identification System) on or off. AIS 

alerts you to area traffic by providing boat IDs, position, course, 

and speed for boats that are within range and equipped with a 

transponder.
dSC—turn DSC (Digital Selective Calling) on or off.

aiS alarm—turn a safe zone around your boat on or off. This is 

used for collision avoidance, and the zone can be customized.

  From the Home screen, select 

 > 

> 

.

Range—change the measured radius of the safe-zone ring to 

a specified distance from 500 ft. to 2.0 nm (or from 150 m to 

3.0 km, or from 500 ft. to 2.0 mi).
Time to (Safe Zone)—sounds an alarm if AIS or MARPA 

determines that a target will intersect the safe zone within the 

defined time interval (from 1 to 24 minutes).