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Garmin GDL 82 Built-In GPS ADS-B Kit Including WAAS Antenna For Certified Aircraft

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Part# 11-15319
MFR Model# 010-01560-31


The GDL 82 Automatic Dependent Surveillance-Broadcast (ADS-B) datalink, is the latest addition to the comprehensive lineup of certified ADS-B solutions available from Garmin. GDL 82 is a small, lightweight Universal Access Transceiver (UAT) datalink with a built-in GPS receiver. For aircraft owners looking for an economical and turnkey solution to satisfy the requirements of ADS-B “Out”, GDL 82 is a straightforward path to meet regulatory requirements.

GDL 82 broadcasts on the 978 MHz frequency, providing a rule-compliant ADS-B “Out” solution for aircraft operating below 18,000’ in the United States. Installation is quick and easy because GDL 82 utilizes a patent-pending design, in which GDL 82 is installed in-line with the aircraft’s existing transponder antenna wiring to transmit the necessary ADS-B “Out” information. The WAAS GPS receiver required for ADS-B compliance is built-in and a GPS antenna is included to offer additional cost-savings for aircraft owners without an existing WAAS GPS on board their aircraft.

82 also contains AutoSquawk interrogation technology, whichGDL interfaces with most Mode C general aviation transponders to synchronize the squawk code and pressure altitude information from the transponder with GDL 82, eliminating the need to install a separate dedicated UAT control panel and altitude encoder. (Please reference the installation manual to determine if the existing Mode C transponder meets compatibility requirements.) This technology not only simplifies installation but also eliminates the burden of the pilot manually keeping the squawk code in sync.

Pilots who already utilize an ADS-B “In” receiver — such as the GDL 52, GDL 39/GDL 39 3D and the Stratus line of portable solutions — can receive additional benefits as the GDL 82 complements many existing products on the market. With ADS-B “Out” participation, pilots using these products have access to a more comprehensive ADS-B “In” traffic picture, resulting in improved situational awareness.
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  • Small, lightweight ADS-B “Out” datalink designed to work with your existing transponder
  • 978 MHz universal access (UAT) output enables aircraft to operate in controlled U.S. airspace below 18,000'
  • Uses AutoSquawk technology to automatically sync with the existing transponder in your aircraft
  • Includes built-in WAAS GPS position source (for ADS-B reference only)
  • For inflight privacy, an Anonymous mode can be set to mask your aircraft ID from displaying on other aircraft’s ADS-B “In” traffic display


  • Unit size, WxHxD: 3.39" x 1.48" x 9.22" (8.6 x 3.8 x 23.42 cm) including connectors
  • Weight: 1 lb 4 oz (0.57 kg) with WAAS GPS
  • Temperature: -45°C to +70°C
  • Power input: 14 or 28 VDC (8 W max.)
  • Transmitter output: 46 dBm (40 W)
  • Environmental compliance (TSO Approved): DO-160G
  • Software compliance (TSO Approved): DO-178 Level D and Level B
  • Hardware compliance (TSO Approved): DO-254 Level C
  • TSO compliance (Approved): TSO-C145d (B2), TSO-C154c (B1S)

In The Box

  • GDL 82 ADS-B “Out” Datalink
  • Connector Kit
  • Garmin GA 35 WAAS GPS antenna
  • Accessories
  • Frequently Purchased With
  • Customers Also Viewed


Not installed yet. Printed doc at staples, 10 bucks.

Mike B Verified Purchase


August 4, 2021

Fast ship

Richard J Verified Purchase


June 16, 2021

Harder to install than a wingtip, but I couldnt stand the thought of being one bird strike away from having to buy it all over again. After installation, it came alive immediately and worked like a clock, it just did what it was supposed to do without any complications. Good Product

John C
April 26, 2021

This unit, WHEN installed correctly performs EXCEPTIONALLY well ! During the FAA performance test, I was not able to cause even one error in the tracking data while performing various maneuvers at altitudes between 500 and 3000 ft. I use the GDL82 RS-232 GPS WAAS output for my Garmin GTR225 radios to pull in the frequencies from nearby airports. However, Garmin instructions are usually not written for inexperienced installers ! For example: It does not tell you that at first powering up the unit, that it may take a few minutes before the GPS WAAS signal becomes available (because the GPS portion, if not used (stored) for several months and shipped more than 600NM, needs a little time to find out where it is). Also some knowledge about HOW and WHERE to apply a ground and use shielding is a must. Although when you read the install manual (which you have to download from the internet), you will find some hints to that regard.

Raymond R
December 10, 2020

Have not had installed yet but excellent service as always. Aircraft spruce allways comes through in a timely manner. Definitely my go to place for all of my aviation needs. A+++++

Richard K
August 14, 2020

Works great! Be sure to do the recommended post-installation checks. I found that transmitting on radio 2 killed the ADSB transmission (bad VHF antenna cable) Probably would not have known if I skipped the checks. You’ll need a switch and LED if you’d like to take advantage of the Anon and Fail features. You may need a new blade-style antenna that’s tuned for 978 MHz. See the installation instructions for the compete picture. You’ll also need a windows 7+ laptop for the configuration and testing. If you don’t go with custom harnesses, you’ll need the proper crimping tools for the 15-pin and BNC/TNC connectors.

Jeff B
May 25, 2020

shipped quick good deal

Mike B
May 14, 2020

Install took a few days of on and off work with my a&p. Worked great right from the start. Glad i went with this for my ads-b out.

April 30, 2020

Very happy and customer service was great with this purchase as well.

Joe P
February 13, 2020

on time delivery

Roy R
January 27, 2020


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What is in the box for the Garmin GDL 82 Built In GPS Kit including WAAS? What additional items will I need to purchase to install?

The box comes with the GDL 82, GA 35 WAAS GPS and the installation kit. You will still need coax cables from the GDL 82 to the transponder antenna and the unit to the WAAS GPS antenna. You will also need wire to draw up the wire harness for the unit.

Q: Will the GDL 82 be able to display TIS-B and FIB-B onto an Aera 660 through a cable like the GDL 39 does?

No. The GDL 82 is only an ADS-B out unit. It does not perform ADS-B in functions.

Q: Does the Garmin GDL 82 Built In GPS Kit including WAAS include the WAAS GPS antenna?

Yes, this kit comes with the Garmin GA 35 WAAS antenna.

Q: Is the Garmin GDL 82 compatible with KT76A?

Yes, it is. Though you will want to get a transponder test to make sure your unit is operating properly.

Q: Does the GDL-82 unit need to be turned on AFTER the transponder is turned on? Can I turn on this unit BEFORE turning on the transponder?

The GDL 82 powers on with the aircraft.

Q: I have a non waas Garmin 430 and a Garmin 327 Transponder---will I be able to utilize these units with the GDL-82?

Yes. The gdl-82 will interface with the 327 antenna output to make the signal compliant.

Q: Looking at pics, I will need a female-female BNC cable from GDL-82 to transponder antennae. I know its BNC for the GPS antennae at the GDL-82 end. Is the GPS antennae have an MCX or BNC connector on it?

You will need a BNC male to BNC male cable. BNC connectors are based on the inner pin, not the housing. The GA 35 WAAS GPS antenna has a TNC female antenna connector on it.

Q: Will this Garmin GDL 82 work with an older Mode C such as a Collins TDR 850 or an analog King?

Yes. Per Garmin, this unit will work with any mode C transponder that is in good working condition. A transponder test is recommended to ensure that the unit is operating properly.

Q: Is the Garmin GDL 82 compatible with a Becker transponder?

Yes, it is.

Q: I have a G3X and G5 and both have WAAS GPS antennas, with a GTX327 transponder. Do i need to install yet another GPS antenna or can it use the CANBUS from the G3X or G5 to get a position source to the Garmin GDL 82?

You will need a GPS 20A with a connector kit and a GA 35 antenna. This unit can give GPS info to the G5 without having to buy a second antenna for the G5.

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