Garmin 521 Manual De Usuario

Configuring the Chartplotter

Safe Height—set the minimum height (chart height datum) of a 

bridge that your boat can safely travel under.
Shoreline distance—set the safe distance for your boat from the 

shore: Nearest, Near, Normal, far, or farthest.

  To change the communications settings from the Home screen, 

select 

> 

.

Serial Port 1—configures the input/output format for serial port 1 to 

use when connecting your chartplotter to external NMEA devices, a 

computer, or other Garmin devices.
Serial Port 2 (if supported)—configures the input/output format for 

serial port 2 to use when connecting your chartplotter to external 

NMEA devices, a computer, or other Garmin devices.

garmin data Transfer—supports the input or output of 

Garmin-proprietary data for communicating with Garmin 

software.
garmin Remote Sonar Transfer (GPSMAP 

420/450/520/550/525/555)—supports the input or output of 

Garmin-proprietary sonar data for communicating with Garmin 

software.

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NMEa Standard—supports the input or output of standard 

NMEA 0183 data, DSC, and sonar NMEA input support for the 

DPT, MTW, and VHW sentences.
NMEa High Speed—supports the input or output of standard 

0183 data for most AIS receivers.

NMEa 0183 Setup—enable or disable NMEA 0183 output 

sentences for sounder, route, system, and Garmin NMEA settings.

1.  From the Home screen, select 

 > 

 > 

.

2.  Select a setting (

, 

, 

, or 

).

3.  Select the NMEA 0183 output sentence to toggle the output on or 

off.

Posn. Precision—adjust the number of digits (Two digits, 

Three digits, or four digits) to the right of the decimal point 

for transmission of NMEA output.
waypoint ids—determine how the unit identifies waypoint 

identifiers (Names

or Numbers).

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