Calibrating the Barometric Altimeter
You can manually calibrate the barometric altimeter if you know the correct elevation or the correct barometric
pressure.
1 Go to a location where the elevation or barometric pressure is known.
2 From the altimeter, select MENU.
3 Select Altimeter Setup > Calibrate Altimeter.
4 Select Method to select the measurement to use in calibration.
5 Enter the measurement.
6 Select Calibrate.
Connected Features
Connected features are available for your GPSMAP 66 series device when you connect the device to a wireless
network or a compatible smartphone using Bluetooth technology. Some features require you to install the
Garmin Connect
™
app or Garmin Explore app on your smartphone. Go to
for more information.
Bluetooth sensors: Allows you to connect Bluetooth compatible sensors, such as a heart rate monitor using the
Garmin Connect app.
Connect IQ
™
: Allows you to extend your device features with widgets, data fields, and apps using the Garmin
Connect app.
EPO Downloads: Allows you to download an extended prediction orbit file to quickly locate GPS satellites and
reduce the time it takes to get an initial GPS fix using the Garmin Connect app or when connected to a Wi‑Fi
®
network.
BirdsEye imagery: Allows you to download BirdsEye Satellite Imagery directly to your device when connected to
a Wi‑Fi network.
Garmin Explore: The Garmin Explore app syncs and shares waypoints, tracks, and routes with your device. You
can also download maps to your smartphone for offline access.
Live Geocache Data: Provides paid or subscription-free services to view live geocache data from
using the Garmin Connect app or when connected to a Wi‑Fi network.
Tracking: Allows you to record track points and transmit them over the Iridium satellite network. You can invite
contacts by sending them an inReach message from the field. This feature allows your contacts to view your
live data on a MapShare tracking page using your Garmin Explore account.
Phone notifications: Displays phone notifications and messages on your GPSMAP 66 series device using the
Garmin Connect app.
Software Updates: Allows you to receive updates for your device software using the Garmin Connect app or
when connected to a Wi‑Fi network.
Active Weather: Allows you to view current weather conditions and weather forecasts using the Garmin
Connect app or when connected to a Wi‑Fi network.
14
Connected Features
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