Garmin Unveils Next Gen All-in-one ADS-B Transponders

DA42-vi cockpit

Garmin Unveils Next Gen All-in-one ADS-B Transponders

GTX™ 335/345 provide a simple upgrade path for thousands of aircraft worldwide including G1000 based flight decks.

Garmin is pleased to announce the GTX 335 and GTX 345 all-in-one ADS-B transponders, which include Extended Squitter (ES) ADS-B “Out” with an option for a built-in WAAS position source as well as dual-link ADS-B “In.” With the most compatibility options in the industry, these new transponders display on a wide variety of current and legacy Garmin displays, including select G1000® integrated flight decks. Regardless of the existing avionics configuration, the GTX 345 enables more capabilities for pilots by displaying ADS-B traffic, subscription-free weather¹, GPS position data and back-up attitude information on the popular Garmin Pilot™ and ForeFlight Mobile apps via Bluetooth® and Connext™ wireless technology. The GTX 335/345 come in an attractive size and form factor, making it easy to replace the most popular transponders in the industry, like the Garmin GTX 327 and many others. Remote options are also available for compatibility with the GTN™ 650/750 series and G1000-equipped aircraft. Best of all, list prices start at only $2,995.

All-in-one WAAS and ADS-B Solution for Aircraft

The GTX™ 335 and GTX 345 incorporate the popular 1.65-inch (4.2 centimeters) tall panel-mount transponder form factor and boast a bright, sunlight-readable digital display, including a pressure altitude readout and flight timers, along with dedicated buttons for numeric squawk code entry. An option for an integrated WAAS/GPS position source provides aircraft owners and operators with an all-in-one solution that meets worldwide ADS-B “Out” requirements. The GTX 345 includes a dual-link ADS-B receiver that delivers pilots a complete ADS-B-provided traffic picture. When paired with compatible displays, the GTX 345 adds subscription-free Flight Information Service-Broadcast (FIS-B) weather¹ and ADS-B traffic, incorporating exclusive features such as TargetTrend™ and TerminalTraffic™. Remote mount options are also available for control and display within G1000 and GTN 650/750-equipped aircraft. When paired with an active traffic system, the GTX 345 combines ADS-B traffic targets and active traffic targets to display a comprehensive traffic picture. Beyond the display, the GTX 345 may be integrated into the aircraft’s audio panel to provide ATC-like audible alerts, such as “Traffic: 10 o’clock, same altitude, 2 miles,” to help pilots keep their eyes outside the cockpit when looking for traffic. Additionally, an optional altitude encoder (pictured) is available and conveniently mounts to the transponder backplate for easy installation and service, precluding the need for a static leak check after removal of the transponder for maintenance.

 ADS-B “In/Out” for G1000 Integrated Flight Decks

Select G1000 equipped aircraft, either with or without WAAS, now have an elegant and simple path for ADS-B. A remote-mounted version of the GTX 335 or GTX 345 takes the place of the aircraft’s transponder and interfaces with either the aircraft’s existing WAAS position source or the optional integrated WAAS position source to meet worldwide ADS-B “Out” requirements. The G1000 display interfaces to the transponder to provide squawk code entry and control in the same manner as before. The dual-link GTX 345 provides the capability to display various ADS-B “In” benefits (G1000 software version dependent) on the Primary Flight Display (PFD) and Multifunction Display (MFD). Pilots may view subscription-free weather¹, including NEXRAD, METARs and TAFs, on the MFD as well as ADS-B traffic targets on the MFD for aircraft equipped with Synthetic Vision Technology (SVT™) on the PFD. Please see the attached table for detailed G1000 compatibility. With Connext technology built-in, additional ADS-B “In” benefits can be wirelessly streamed to a Garmin GPS portable such as the aera® 795/796 and the most popular apps in the industry, including Garmin Pilot and ForeFlight Mobile. Additionally, when integrated with an active traffic system, ADS-B traffic and active traffic targets are merged by the GTX™ 345, giving pilots an optimal traffic picture.

Most Comprehensive Compatibility

In addition to G1000, the GTX 345 integrates with thousands of installed displays to provide the benefits of ADS-B “In,” further extending existing avionics investments. This initially includes the popular GTN 650/750 touchscreen navigators and GNS™ 430W/530W navigators, GMX 200/MX 20, aera 795/796, Garmin Pilot, ForeFlight Mobile and other compatible third-party avionics. Additionally, customers may pair the GNS 480 with the GTX 335/345 and use the integrated WAAS position source to achieve ADS-B “Out.” Support for G500/G600 is expected in Q2 2016, while G3X Touch support is expected in Q3 2016. Pairing the transponder with a display overlays TIS-B traffic and subscription-free FIS-B weather¹ on top of colorful, moving maps with reference to airspace, terrain, flight plan information and more, so it’s easier to identify traffic and weather of concern. FIS-B weather products include NEXRAD, METARs, TAFs, PIREPs, winds and temperatures aloft, NOTAMs, AIRMETs and SIGMETs. Exclusive traffic features such as TargetTrend and TerminalTraffic further enhance the traffic picture. TIS-B traffic and FIS-B weather display capabilities vary by product; please see the attached display compatibility table for details.

Enhance the Flying Experience with Wireless Compatibility

Regardless of the existing avionics configuration, the GTX 345 displays an incredible amount of valuable flight information on compatible portable devices. With the GTX 345, customers can wirelessly receive ADS-B traffic and weather as well as precise GPS position data for use within mobile applications. Wireless compatibility initially includes the popular aera 795/796 portable aviation GPS and mobile applications, including Garmin Pilot and ForeFlight Mobile. SVT is enhanced by the AHRS within the transponder, displaying GPS-derived airspeed, altitude and vertical speed overlaid on a rich 3-D topographic landscape. Traffic is also transformed within Garmin Pilot, leveraging the Garmin exclusive TargetTrend and TerminalTraffic technologies.

The GTX 345 and GTX 335 transponders have received the FAA’s Technical Standard Order (TSO) authorization and are expected to receive supplemental type certification (STC) later this month for installation in hundreds of aircraft makes and models. The GTX 345 transponder provides ADS-B “In/Out” capabilities and is available with and without WAAS for a list price of $5,795 and $4,995, respectively. The GTX 335 ADS-B “Out” transponder is available with WAAS for $3,795 and without WAAS for $2,995. Remote-mount derivatives of the GTX 335/345 share pricing equivalent to the panel-mount transponders.

GTX™ 335/345 Features and Options
GTX 335GTX 335RGTX 345GTX 345R
PriceWithout GPS: $2,995With GPS: $3,795Without GPS: $2,995With GPS: $3,795Without GPS: $4,995With GPS: $5,795Without GPS: $4,995With GPS: $5,795
Control via GTN SeriesYesYesYesYes
Control via G1000®¹³N/AYesN/AYes
Altitude EncoderOptionalOptionalOptionalOptional
“Out” Compliant² (Any Altitude)StandardStandardStandardStandard
“In” Capable (Dual-link)NoNoStandardStandard
Built-in WAAS GPSOptionalOptionalOptionalOptional
Supports ADS-R/TIS-B TrafficN/AN/AYesYes
Supports FIS-B WeatherN/AN/AYesYes
Traffic & Weather Output for Panel Displays³N/AN/AYesYes
Garmin PilotN/AN/AYesYes
ForeFlight MobileN/AN/AYesYes
aera® 795/796N/AN/AYesYes
AHRS Attitude Data (Non-certified)NoNoYesYes
¹Software Version Requirements Apply²WAAS Position Source Required

³Compatible with select displays. See for details.


¹FIS-B Weather is a US only service

GTX™ 335/345 Support for G1000® AircraftDisplay of GTX 345 Traffic Requires SW: GDU v7.10 & GIA 63 v5.31 (and later)

Display of GTX 345 Weather Requires SW: GDU v12.00 & GIA 63 v6.20 (and later)

AircraftNON-WAAS G1000 SupportedWAAS G1000 SupportedTrafficFIS-B Weather
Cessna 350 /400YesYesYesYes
Cessna 172R / 172SYesYesYesYes
Cessna 182S / 182T / T182TYesYesYesYes
Cessna 206H / T206HYesYesYesYes
Cessna 208 / 208BN/AYesYesYes
Costruzioni Tecnam P2006TN/AYesYesSelect Systems
Diamond DA-40 / DA-40FYesYesYesSelect Systems
Diamond DA-40NGYesYesYesNo
Diamond DA-40DN/AYesYesYes
Diamond DA-42YesYesYesNo
Diamond DA-42NGYesYesYesYes
Diamond DA-42 L360YesYesYesSelect Systems
Hawker Beechcraft 58 / 58GYesYesYesNo
Hawker Beechcraft A36 / G36YesYesYesNo
Mooney M20TN / M20R / M20MYesYesYesSelect Systems
Piper PA-28 ArcherN/AYesYesYes
Piper PA-34 SenecaN/AYesYesYes
Piper PA-44  SeminoleN/AYesYesYes
Piper PA-46 Matrix / Mirage / MeridianN/AYesYesYes
Socata TBM 700N/AYesYesYes
Socata TBM 850 / 900N/AYesYesYes
P 68, P 68B, P 68C, P 68C-TC
AP68TP300 “Spartacus”
AP68TP 600 “Aviator”
Other requirements may apply. See a Garmin Authorized Dealer for details.


GTX™ 345 Display Compatibility
DISPLAYADS-B & TIS-B TrafficFIS-B ProductsRemote Transponder ControlTargetTrend™TerminalTraffic™
G500/G600 (Coming Q2 2016)60 targets¹Regional NEXRAD, CONUS NEXRAD, METARs, TAFs, PIREPs, Winds/Temps Aloft, NOTAMs, AIRMETs, SIGMETs, TFRsNoYesYes
GTN Series60 targets¹Regional NEXRAD, CONUS NEXRAD, METARs, TAFs, PIREPs, Winds/Temperatures Aloft, NOTAMs, AIRMETs, SIGMETs, TFRsYesYesYes
G1000®30 targets (Ver 7.10 and later)Regional NEXRAD, METARs, TAFs(Ver 12.00 and later?)YesNoNo
GNS WAAS Series8 targets²³Regional NEXRAD, CONUS NEXRAD, METARs, TAFsNoNoNo
Output for      GMX 200/MX20Up to 60 targets¹Regional NEXRAD, METARs, TAFsNoNoNo
Output for 3rd Party DisplaysUp to 60 targets¹ are sent to the 3rd Party display. Refer to 3rd Party documentation for description of traffic display function.FIS-B data is sent to the 3rd Party display.  Refer to 3rd Party documentation for description of FIS-B display function.NoNoNo
¹Up to 30 airborne and 30 ground traffic targets²Only airborne targets

³TIS-A Symbology

?Versions 13.00 – 13.07 do not include METARs

Garmin Unveils Next Gen All-in-one ADS-B Transponders
LifeStyle Aviation February 10, 2016
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