Garmin Aviation
Garmin GTX 345 ADS-B
The Garmin GTX 345 is a TSO-certified ADS-B Out and In transponder that transmits 1090ES position reports and receives both 978 UAT and 1090ES traffic and weather from the FAA ground network. It combines a Mode S ES transponder with an integrated ADS-B In receiver, eliminating the need for a separate ADS-B In antenna or receiver box. The GTX 345 displays traffic and FIS-B weather directly on compatible Garmin displays and third-party MFDs.
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Capabilities
- Dual-link ADS-B Out (1090ES) and In (978 UAT + 1090ES)
- Integrated Mode S transponder with altitude encoder
- FIS-B weather and TIS-B traffic reception
- Bluetooth connectivity for tablet integration
- Remote or panel-mount configurations available
- FAA NextGen ADS-B Out mandate compliant
About the Garmin GTX 345 ADS-B
The Garmin GTX 345 ADS-B is Garmin Aviation's ads-b system. The Garmin GTX 345 is a TSO-certified ADS-B Out and In transponder that transmits 1090ES position reports and receives both 978 UAT and 1090ES traffic and weather from the FAA ground network. It combines a Mode S ES transponder with an integrated ADS-B In receiver, eliminating the need for a separate ADS-B In antenna or receiver box. The GTX 345 displays traffic and FIS-B weather directly on compatible Garmin displays and third-party MFDs.
It is typically specified on general aviation, turboprop, helicopter aircraft, whether as factory-fit equipment on new airframes or as a retrofit during an avionics upgrade. Selecting the right system is as much about installation cost, STC availability and downtime as it is about the headline capabilities — which is where speaking to a dealer pays off.
Garmin GTX 345 ADS-B: FAQs
What is the Garmin GTX 345 ADS-B?
The Garmin GTX 345 ADS-B is a ads-b system from Garmin Aviation. The Garmin GTX 345 is a TSO-certified ADS-B Out and In transponder that transmits 1090ES position reports and receives both 978 UAT and 1090ES traffic and weather from the FAA ground network. It combines a Mode S ES transponder with an integrated ADS-B In receiver, eliminating the need for a separate ADS-B In antenna or receiver box. The GTX 345 displays traffic and FIS-B weather directly on compatible Garmin displays and third-party MFDs.
What aircraft is the Garmin GTX 345 ADS-B compatible with?
The Garmin GTX 345 ADS-B is commonly fitted to general aviation, turboprop, helicopter aircraft. Exact approvals depend on the airframe and the available Supplemental Type Certificate (STC) — request a dealer quote to confirm fit for your specific aircraft.
What can the Garmin GTX 345 ADS-B do?
Key capabilities include dual-link ads-b out (1090es) and in (978 uat + 1090es), integrated mode s transponder with altitude encoder, fis-b weather and tis-b traffic reception, bluetooth connectivity for tablet integration, and more. See the full capability list above.
How much does the Garmin GTX 345 ADS-B cost?
Pricing and dealer availability for the Garmin GTX 345 ADS-B are shared with verified HangarMart partners rather than published publicly. Use "Request Quote" above to get current pricing and installation options.