Aviation's Panel Mount Avionics Installation Leader

Garmin Introduces GTX™ 335D and GTX 345D

Garmin is pleased to introduce GTX 335D and GTX 345D, two diversity transponders that provide optimal ADS-B “Out” coverage and visibility while operating throughout the global airspace system. GTX 335D offers ADS-B “Out,” while the GTX 345D provides ADS-B “Out” as well as dual-link ADS-B “In” traffic and weather for display on compatible avionics and mobile devices. Remote-mount versions are also available. The GTX 335D/GTX 345D transponders are intended for qualifying aircraft that may prefer or require a diversity solution, while also meeting or exceeding global ADS-B airspace requirements.

GTX 335D and GTX 345D utilize two antennas mounted on the top and bottom of the aircraft, providing superior operational coverage. As opposed to having a single antenna that is mounted on the bottom of the aircraft, diversity antennas help reduce antenna “shading” caused when the aircraft turns or maneuvers. Diversity antennas also improve line-of-sight visibility and allow the transponder to more robustly send and receive ADS-B transmissions from other participating aircraft, further improving visibility while operating throughout the global airspace system. All versions of GTX 335D and GTX 345D interface with a compatible WAAS GPS position source to meet ADS-B “Out” requirements (integrated GPS variants are not available). GTX 335D and GTX 345D are also compatible with the Garmin altitude encoder — which 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.

The GTX 345D transponder unlocks more capabilities for pilots by displaying FIS-B weather and dual-link ADS-B traffic on compatible cockpit displays, Garmin portables and mobile applications such as Garmin Pilot™, FltPlan Go and ForeFlight. Exclusive features such as TargetTrend™ and TerminalTraffic™ further enhance the display of traffic within Garmin products. GTX 345D may be integrated into the aircraft’s audio panel to provide ATC-like audible alerts — such as “Traffic: 10 o’clock, same altitude, two miles” to help pilots keep their eyes outside the cockpit when looking for traffic. FIS-B weather products include NEXRAD, METARs, TAFs, PIREPs, winds and temperatures aloft, NOTAMs, AIRMETs and SIGMETs. New FIS-B weather products, including lightning, turbulence, icing (current and forecast) and cloud tops are currently capable of displaying on Garmin Pilot and the aera® 660 aviation portable. Additional Garmin display compatibility with these new FIS-B weather products is expected later this year.