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Garmin GTX 345 ADSB IN/OUT Transponder

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Install Only: The Manufacturer requires that this item is installed by an authorised dealer – please contact us for a comprehensive installation quote.

The Garmin GTX 345 ADS-B In Out transponder is a complete all-in-one solution designed to meet global ADS-B compliance while delivering real-time traffic and weather data directly to your cockpit. Combining Mode S Extended Squitter with optional WAAS GPS, the GTX345 is one of the most advanced and widely trusted transponders available for aircraft owners looking to upgrade with minimal downtime.

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Part NumberDescriptionConditionPriceAvailabilityStockOrder Qty 
010-01216-06Garmin GTX 345 ADSB IN/OUT TransponderNEWRFQ0
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Buy Garmin GTX 345 Transponder in Australia

If you're looking to buy a Garmin GTX 345 transponder in Australia, this unit provides a future-proof ADS-B In and Out solution suitable for a wide range of aircraft. With compatibility across Garmin displays and mobile apps like ForeFlight and Garmin Pilot, it offers both compliance and enhanced situational awareness in one unit.

Key Features of the Garmin GTX345

  • 1090 MHz ADS-B Out for global compliance
  • Dual-link ADS-B In for traffic and weather
  • Optional built-in WAAS GPS position source
  • Mode S Extended Squitter (ES) transponder
  • Wireless streaming via Garmin Connext
  • Compatible with ForeFlight and Garmin Pilot
  • Direct replacement for GTX 327 and similar units
  • Available in panel mount and remote (GTX 345R) versions

What is an ADS-B In and Out Transponder?

An ADS-B In and Out transponder allows your aircraft to both transmit its position to air traffic control and receive real-time traffic and weather data from other aircraft and ground stations. The Garmin GTX 345 provides both capabilities in a single unit, making it a popular choice for pilots upgrading to meet ADS-B requirements.

GTX 345 vs GTX 335 – What’s the Difference?

The key difference between the GTX 345 and GTX 335 is ADS-B In capability. While both units provide ADS-B Out compliance, the GTX 345 adds traffic, weather, and wireless connectivity features, making it the preferred option for pilots wanting enhanced situational awareness.

Physical & Performance

  • Physical dimensions (unit, rack, connectors); for panel mounts, depth is measured from face of instrument panel): 1.65” x 6.30” x 10.07” (42 x 160 x 256 mm)
  • Display type: Digital
  • Weight (unit, rack, connectors): 3.1/3.2 lbs (1.41/1.45 kg)
  • Voltage range: 14/28 VDC (18/20 W Max)
  • Transmit power: 200 W minimum
  • Temperature: -40° C to +70° C
  • Operating altitude: To 55,000 ft (16,800 m)
  • Cooling input: Not required
  • Environmental compliance (TSO Approved): DO-160G
  • Software compliance (TSO Approved): DO-178 Levels B, C, D, E
  • Hardware compliance (TSO Approved): DO-254 Level C
  • TSO compliance (Approved): TSO-C88b (w/opt. alt. encoder; TSO-C112e (Class 1, Level 2els; TSO-C154c (Class A1S); TSO-C157a (Class 1); TSO-C166b (Class A1S); TSO-C195a (Class C1,C2,C3,C4)
  • Mount type: Panel
  • Transponder type: Mode A/C, S and ES
  • Squawk code selection: Push-button
  • Traffic Information Services (TIS) alerts compatible: Yes

 

Transponder Features

  • Solid state transmitter (more efficient, longer life): Yes
  • Aural alerts: Yes
  • Total Air Temperature (TAT): Yes
  • Pressure altitude readout: Yes
  • Altitude monitor function: Yes
  • Density altitude readout: Yes
  • Built-in timers: Yes
  • Automatic ALT/GND mode: Yes
  • Wireless connectivity to portable device using Garmin Pilot, ForeFlight or compatible Garmin portable: Yes
  • Subscription-free weather and traffic: Yes (USA and Canada ONLY)
  • Internal AHRS (non-certified): Yes
  • 1090 MHz ADS-B Out: Yes
  • Dual-link 1090MHz and 978MHz UAT ADS-B In: Yes (UAT 978 MHZ in USA and Canada ONLY)
  • Built in GPS/WAAS receiver: Optional
  • Displays on G500/G600, GTN 650/750, GNS 430W/530W, and others: Yes
  • Pressure altitude encoder module (mounts to connector backplate): Optional
  • TAS/TCAS traffic integration with ADS-B In: Yes
  • GTX 345 Panel Mount ADSB IN/OUT Mode A/C/S Transponder
  • Install kit
  • Information kit
  • Pilots Guide – Downloadable

Must be installed by an Authorised Garmin Dealer

For more information, specifications and product details please visit the official Garmin website.

Is the Garmin GTX 345 ADS-B compliant?
Yes, it provides 1090 MHz ADS-B Out for global compliance.

Does the GTX 345 include ADS-B In?
Yes, it provides dual-link ADS-B In for traffic and weather.

Can the GTX 345 connect to ForeFlight?
Yes, via Garmin Connext wireless connectivity.

What aircraft is the GTX 345 compatible with?
It is compatible with a wide range of aircraft and Garmin avionics systems.

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Buy Garmin GTX 345 Transponder in Australia

If you’re looking to buy a Garmin GTX 345 transponder in Australia, this unit provides a future-proof ADS-B In and Out solution suitable for a wide range of aircraft. With compatibility across Garmin displays and mobile apps like ForeFlight and Garmin Pilot, it offers both compliance and enhanced situational awareness in one unit.

Key Features of the Garmin GTX345

  • 1090 MHz ADS-B Out for global compliance
  • Dual-link ADS-B In for traffic and weather
  • Optional built-in WAAS GPS position source
  • Mode S Extended Squitter (ES) transponder
  • Wireless streaming via Garmin Connext
  • Compatible with ForeFlight and Garmin Pilot
  • Direct replacement for GTX 327 and similar units
  • Available in panel mount and remote (GTX 345R) versions

What is an ADS-B In and Out Transponder?

An ADS-B In and Out transponder allows your aircraft to both transmit its position to air traffic control and receive real-time traffic and weather data from other aircraft and ground stations. The Garmin GTX 345 provides both capabilities in a single unit, making it a popular choice for pilots upgrading to meet ADS-B requirements.

GTX 345 vs GTX 335 – What’s the Difference?

The key difference between the GTX 345 and GTX 335 is ADS-B In capability. While both units provide ADS-B Out compliance, the GTX 345 adds traffic, weather, and wireless connectivity features, making it the preferred option for pilots wanting enhanced situational awareness.