Start receiving ADS-B traffic, subscription-free weather on your Garmin aviation portable or mobile device with the GDL 39 ADS-B receiver. When using Garmin Pilot on your mobile device, the GDL 39 can provide highly accurate WAAS GPS data as well.

Access Comprehensive Aviation Weather

The GDL 39 features ADS-B “In” datalink technology that allows it to receive subscription-free Flight Information Service-Broadcast (FIS-B) weather information over the FAA’s 978 MHz Universal Access Transceiver (UAT) uplink. Easily access animated NEXRAD radar, METARs, TAFs, winds and temperatures aloft, PIREPs, NOTAMs and more right on your compatible Garmin aviation portable or through the Garmin Pilot app on your iPad® or Android device.¹

Spot Potential Traffic Threats

The GDL 39 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 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 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.

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 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.

Go Wireless

With built-in Bluetooth capability, the GDL 39 can wirelessly send the data it collects to devices running Garmin Pilot, as well as the aera® 795/796. The GDL 39 collects and stores all available traffic and weather 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 weather 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. 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.

Learn More at the ADS-B Academy

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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 is a non-certified receive-only product. It does not provide ADS-B “Out” capability to satisfy FAA mandate requirements.

Antenna/Receiver

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

Optional Battery Assembly

Type: Lithium Ion Rechargeable Battery

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: up to 4 hours

DISPLAY	TIS-B TRAFFIC	FIS-B WEATHER	CONNECTION	TargetTrend™ Capable
Garmin Pilot app	30 targets	Yes	Bluetooth	Yes
G3X	30 targets	Yes	Cable	Yes
aera 795/796	30 targets	Yes	Bluetooth or Cable	Yes
aera 500 series	30 targets	Yes	Cable	Yes
GPSMAP 695/696	30 targets	Yes	Cable	Yes
GPSMAP 495/496	8 targets(1)	No	Cable	No
GPSMAP 396	8 targets(1)	No	Cable	No

(1) Displayed using TIS-A Symbol Format

What is ADS-B?