Garmin 521 User Manual

Configuring the Chartplotter

Use the Configure screen to configure unit settings.

  To change general system settings from the Home screen, select 

 > 

.

Simulator—turn Simulator mode on or off. Select 

 to set 

simulator options, such as simulated position, speed, and direction.
beeper/display—select 

 to set when the unit makes audible 

sounds. Select 

 > 

 to brighten or darken the 

backlight. Select 

 > 

 to switch between Day 

). 

auto Power—turn Auto Power On or Off. When On is selected, the 

chartplotter will automatically turn on whenever power is applied, 

unless the chartplotter is turned off with the Power Key before 

power is lost.

gPS—view GPS satellites.
Skyview—view the GPS satellite constellation.
waaS/EgNOS—toggle WAAS (in North America) or EGNOS 

(in Europe) on or off. WAAS/EGNOS can provide more-accurate 

GPS position information. However, when using WAAS or 

EGNOS, the device takes longer to acquire satellites.

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Speed filter—select 

, 

, or 

. The speed filter averages 

the speed of your boat over a short period of time for smoother 

speed values.

System information—view system information and reset factory 

settings. The Save to Card button is provided as a troubleshooting 

tool. A Garmin Product Support representative may ask you to use 

this feature to retrieve data about your chartplotter.
Event Log—displays a list of system events. Select an event to view 

additional information.

  To change units of measure from the Home screen, select 

 > 

 > 

.

System Units—a global setting that defines individual units of 

measure at the same time: Statute (mh, ft, ºf), Metric (kh, m, ºC), 

Nautical (kt, ft, ºf), or Custom. Select 

 to individually 

define units of measure for depth, temperature, distance, speed, 

elevation, volume, and pressure.
NOTE: You must be receiving NMEA sonar depth data to view 

depth and water temperature information.

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