The GARMIN® GTX™ 345 looks and operates like a standard Mode S transponder. It is a panel-mounted IFR-certified all-in-one transponder solution for compliance with 1090 MHz ADS-B "Out" and "In" requirements with minimal expense, downtime and disruption to the aircraft panels while providing at the same time all the weather and traffic benefits of ADS-B “In”. An easy replacement for existing transponders with common 1.65-inch tall form factor, FAA and EASA approved for installation on most popular aircraft makes and models. It features a bright, sunlight-readable digital display, a pressure altitude readout, handy timers for approaches and other operations, plus dedicated pushbuttons for quick and easy squawk code entry. Its 1090 MHz ADS-B "Out" transmission capability enables automatical output of accurate and dynamic traffic surveillance data that the NextGen airspace system requires. Its ADS-B "In" reception unlocks even more capabilities for pilots, enabling display of ADS-B traffic, weather and more on a variety of installed or portable displays. Traffic monitoring requirements of ADS-B can be satisfied by either a WAAS/SBAS-compliant navigation system or an optional built-in GPS position source available with your GTX 345 transponder.
Optional remote mount GTX versions are also available for compatibility with the GTN™ 750/650 series of GPS/Comm/Nav systems, as well as select Garmin G1000® integrated flight deck systems – all of which provide built-in remote transponder code selection and control.
With the GTX™ 345, the subscription-free weather and traffic display capabilities enabled by ADS-B "In" can be interfaced with compatible cockpit displays or streamed wirelessly via Garmin Connext™ to aera 796/795 or 660 series portables, as well as to popular tablets/mobile devices by way of apps such as Garmin Pilot™, or ForeFlight Mobile.
The GTX™ 345 ADS-B dual-link receiver can receive on both frequencies (978 MHz and 1090 MHz) authorized for ADS-B operations in the U.S. ADS-B traffic and active traffic targets are merged on the display providing a truly comprehensive traffic picture. For added situational awareness, it also incorporates a built-in audio output for audible traffic and altitude alerts, which can be integrated into the existing audio panel.
The GTX™ 335/345 transponders can only be sold for use in experimental aircraft. Their use in certified aircraft requires their installation from a shop certified by Garmin to perform installations.