GDL® 39 3D

Part Number: 010-11689-04
Estimated availability is 1 – 3 business days.
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Access Traffic and Attitude Information

  • ADS-B traffic targets
  • Wireless Bluetooth® connectivity
  • GDL 39 3D adds attitude and SVX™ in Garmin Pilot
  • Built-in WAAS GPS receiver
  • Garmin Pilot app and aviation portables integration
GDL 39

Start receiving ADS-B traffic on your Garmin aviation portable or mobile device with the GDL 39 3D ADS-B receiver. When using Garmin Pilot on your mobile device, the GDL 39 3D can provide highly accurate WAAS GPS data and can also provide backup attitude indication and SVX™ synthetic vision view.

Spot Potential Traffic Threats

The GDL 39 3D can receive ADS-B position reports directly from other aircraft in your vicinity. Because the FAA permits ADS-B broadcasts on 2 frequencies (978 UAT and 1090 ES), the GDL 39 3D contains both receivers so you can see a comprehensive view of all ADS-B “Out” equipped targets. The compatible display² will alert you by announcing traffic targets both audibly and visually. Spoken audio alerts announce “Traffic, Traffic” to get you looking right away.

ADS-B “In” technology also allows the GDL 39 3D to receive Traffic Information Service-Broadcast (TIS-B) information. TIS-B allows you to view the same dynamic traffic picture that ATC ground controllers are seeing when you're either participating with an ADS-B "Out" solution or within a certain range of another ADS-B "Out" participating aircraft when within a service area3. Garmin correlation technology automatically displays the highest-integrity traffic data from multiple sources, preventing ghost or duplicate targets.

Garmin Pilot App

Take Advantage of Advanced Display Capabilities

With the Garmin Pilot app on your mobile device, you can receive advanced traffic display features like TargetTrend™ relative motion tracking that provides a faster, more intuitive way of judging target trajectories and closure rates in relation to your aircraft's position. TargetTrend relies on ADS-B "Out" equipped targets, so while not all targets will display with trajectories today, this feature will be come increasingly beneficial to pilots in the future. SURF technology also supports the display of ADS-B-equipped surface targets on your map screen.

Get More Accurate GPS

The GDL 39 3D can provide highly accurate WAAS GPS location information to your mobile device – like an iPad – using Bluetooth® technology. This provides your device with the precision you’d expect from Garmin’s aviation-grade navigation devices, updating at a rate of up to 5 times per second depending on the capability of the device used.

aera 796

Go Wireless

With built-in Bluetooth capability, the GDL 39 3D can wirelessly send the data it collects to devices running Garmin Pilot, as well as the aera® 795/796. The GDL 39 3D collects and stores all available traffic data in your vicinity so it can be available as soon as you turn on your display. The device capable of simultaneously providing wireless data to 2 devices while hardwired to a third. As opposed to using a WiFi link, Bluetooth lets you stay connected while on the ground so you can continually receive the latest reports as long as you have a data connection – no manual switching of networks required. Just set it up once and it will automatically remember and pair with your mobile device the next time you hop in the cockpit.

Should wireless connectivity not be an option with your device, a wiring harness can be included with your GDL 39 3D. The device can go up to 4 hours between charges with an optional battery, and a cigarette lighter adapter comes included for onboard power. As technologies continue to develop, software updates will be available through your Garmin aviation portable via Garmin Pilot and a separate utility app on your mobile device using the Bluetooth connection.

Attitude Indicator

Add Attitude and SVX

GDL 39 3D adds an attitude sensor to the device for attitude backup during your flights. This attitude information enables SVX™ synthetic vision view that displays a virtual landscape of what lies ahead – complete with terrain, obstacles, runways and more. You can also use split-screen mode to simultaneously view your current attitude indication alongside ADS-B weather, datalink traffic or other flight information.

Learn More at the ADS-B Academy

Let us help you find the solution that best fits your needs with our helpful videos and interactive tools.

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¹Not all FIS-B products may be available across all devices. Check your Pilot's Guide for specifics about which products are available on your device.

²Both the audible traffic alerting feature and TargetTrend™ require compatible displays. Please check the Pilot’s Guide for specific capabilities available on your display.

³In order to maximize available traffic information for the display, the aircraft should also be equipped with a compliant ADS-B ³out² solution like the GDL 88 or GTX 330ES/33/23 ES transponders.

Note: The GDL 39 3D is a non-certified receive-only product. It does not provide ADS-B “Out” capability to satisfy FAA mandate requirements.

WAAS enabled



  • Unit dimensions, WxHxD: 3.5" x 1.9" x 6.0" (8.89 x 4.83 x 15.24 cm)
  • Weight: 0.48 lb (0.22 kg)
  • Operating temperature: 20°C to +60°C (-4°F to 140°F)
  • Operating altitude: To 55,000 ft
  • Power input: 10 to 32 VDC, 3.5 W max.
  • Battery charge power: 4.5 W max
  • Total power while charging: 8.0 W max
  • Nominal operating velocity range: 0 – 800 kts (411 m/s)

Optional Battery Assembly

  • Battery type: Lithium-ion rechargeable
  • Unit dimensions, WxHxD: 3.8" x 0.9" x 6.4" (9.65 x 2.29 x 16.26 cm)
  • Output voltage: 7.4 VDC
  • Charging voltage: 10-32 VDC
  • Charge temperature:Unit may not charge at extreme temperatures below 0° C (32° F) or above 32° C (90° F)
  • Operating temperature: -20° C to +60°C (-4°F to +140° F)
  • Typical battery operating time: 5 hours

In the Box

  • GDL 39 portable ADS-B datalink with antenna
  • One of the following compatible adapter cables:
    • Power adapter
    • aera 795/796 wiring cradle
    • aera 500 series wiring cradle
    • GPSMAP 695/696 wiring cradle
    • GPSMAP 396/495/496 wiring cradle
    • Bare wire adapter cable for use with G3X and other custom applications
  • Pilot's guide
  • Suction cup for cable placement
  • Mounting bracket
  • Free trial of Garmin Pilot

Package contents will vary based on portable cable desired. See your local dealer for information on which cable is right for your application.

Compatible Devices

Garmin Pilot app 30 targets Yes Bluetooth Yes Yes
G3X Touch 30 targets Yes Bluetooth or Cable Yes No
G3X 30 targets Yes Cable Yes No
aera 795/796 30 targets Yes Bluetooth or Cable Yes Yes
aera 660 30 targets Yes Bluetooth or Cable Yes Yes
aera 500 series 30 targets Yes Cable Yes No
GPSMAP 695/696 30 targets Yes Cable Yes No
GPSMAP 495/496 8 targets1 No Cable No No
GPSMAP 396 8 targets1 No Cable No No

1Displayed using TIS-A Symbol Format


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