Part Number: 010-01014-03

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Designed exclusively for installation with Garmin’s G3X™ electronic flight display system in light sport and experimental/kitbuilt aircraft, the GTX 23 is an affordable, full-featured remote digital transponder for Mode S traffic surveillance.

Get Next Generation ADS-B Technology

With Extended Squitter technology, the GTX 23 provides an affordable pathway to ADS-B compliance for the FAA’s proposed Next Generation airspace system. When coupled with an approved position source – like our GTN series avionics – the extended squitter technology in the GTX 23 allows you to automatically transmit more accurate and useful traffic surveillance data – including aircraft flight ID, position, altitude, velocity, climb/descent, and heading information.

Monitor Traffic with TIS

With support for Traffic Information Services (TIS) alerts, the GTX 23 allows you to see the same traffic information your ATC controller is watching. TIS is a ground-based service that provides the relative location of all transponder-equipped aircraft in your airspace. This information is then displayed graphically on your G3X display or on an integrated Garmin GPS/Nav/Comm system.

Enjoy Seamless Integration

In addition to TIS traffic datalink capability, the GTX 23 features 250 W of power output, auto standby and easy entry of squawk codes using the controls on your G3X cockpit displays. Plus the fact that it’s remotely mounted means you save valuable real estate in your panel. Better still, because it’s an all solid-state design, the unit offers low power consumption and heat emissions, which ultimately translate into superior reliability and extra-long service life.


Physical & Performance

Unit dimensions, WxHxD 6.92"W x 1.78"H x 11.05"D (17.6 x 4.5 x 28.1 cm)
Weight 4.31 lb (1.95 kg)
Display type digital
Voltage range 11-33
Transmit power 250 watts
Transponder type mode A/C and S
Squawk code selection remote entry through G3X PFD

Features & Benefits

Solid state transmitter (more efficient, longer life) Yes
Verbal alerts Yes
Traffic Information Services (TIS) alerts compatible Yes
Outside air temperature display No
Pressure altitude readout No
Altitude monitor function No
Density altitude readout No
Built-in timers No
Automatic ALT/GND mode Yes
Diversity (supports top and bottom mounted antennae to enhance visibility to TCAS-equipped aircraft flying above you) No
Panel-mounted No

In the Box

  • GTX 23 ES transponder
  • Installation kit

Package contents may vary per version. See your local dealer for more information.