Garmin 521 User Manual

Page of 72
GPSMAP 400/500 Series Owner’s Manual 
Getting Started 
Getting Started
Unit Overview
POWER/ 
BACKLIGHT
MENU
ROCKER
SELECT
HOME
RANGE (-/+)
MARK
SD card slot
Power/Data
GPSMAP 526 shown
External GPS 
antenna
GPSMAP 520/525/550/555