The Garmin GDL 39 Utility app is designed for use with the GDL 39 Portable ADS-B Receiver.
The app provides the following for the GDL 39:
- Update GDL 39 Firmware
- Displays signal strength, ground station status and battery life
- Garmin patented navigation panel displays altimeter, heading and ground speed
*Note: The GDL 39 Utility app is optional. This application is not required in order to use the GDL 39 Portable ADS-B Receiver with Garmin Pilot on your iOS device.