Meet echoESX EXP, the next-generation Mode S ADS-B OUT transponder designed for experimental aircraft. This remote-mounted transponder offers seamless integration with the AV-20-E and AV-30-E displays, reducing cockpit clutter while delivering full 1090 MHz ADS-B compliance.

Designed with a compact form factor, echoESX EXP simplifies installation, eliminates the need for bulky avionics, and complies with rigorous avionics standards (DO-181E, DO-260B, DO-229E, DO-178C, DO-254, DO-160G. Built on uAvionix’s proven technology, echoESX EXP is the easiest Mode S transponder install or modernizing your aircraft.

echoESX from uAvionix is a state-of-the-art remote mount Mode S ADS-B Out transponder integrated with a high-performance GPS receiver. Designed for both experimental and certified aircraft, echoESX provides seamless cockpit integration, simplified installation, and reliable ADS-B compliance, significantly enhancing situational awareness and operational efficiency.

Streamlined Integration
Designed to integrate seamlessly with AV-30-E and AV-20-E displays, echoESX also features an internal GPS receiver—eliminating the need for a separate GPS installation. For certified aircraft, an optional TSO-certified GPS antenna from uAvionix completes the package.

Easy Retrofit
Designed for quick retrofit installation that clears up your panel compared to traditional ADS-B Mode S transponders, echoESX is an easy replacement for your existing Mode C transponder with the ability to use your existing installed monopole transponder antenna.