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Home / Avionics / Transponders / uAvionix /uAvionix echoESX Next-Gen Mode S ADS-B OUT Transponder
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uAvionix echoESX Next-Gen Mode S ADS-B OUT Transponder

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Overview

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.

Features

  • Remote-Mount Flexibility - Place wherever makes the most sense for your aircraft. The echoESX EXP’s expands beyond nav-light installation, offering maximum versatility
  • Hassle-Free Installation - Replace your transponder without major modifications—eliminates bulky transponders and blind encoders saving pounds behind the panel and gallons in the tank
  • Built-In SBAS GPS Receiver - No need for additional GPS hardware— echoESX EXP meets ADS-B OUT requirements with an included SBAS GPS receiver.
  • User-Friendly Setup - Quick setup and intuitive configuration via AV-30-E and AV-20-E displays
  • Ecosystem Integration - Enhanced interoperability within the uAvionix ecosystem (AV-Link, AV-HSI, ForeFlight Sentry)
  • Compact Remote-Mount Solution - The echoESX combines a space-saving remote-mount design with ultra-efficient operation. Its minimal Size, Weight, and Power (SWaP) profile makes it an ideal upgrade from bulky legacy transponders, reducing strain on your aircraft’s electrical system.
  • Regulatory Compliant - Meets ADS-B Out regulatory requirements per FAA standards (14 CFR 91.227)
  • Built for Durability - Robust environmental durability (DO-160G compliance)
  • Precision Positioning - Integrated SBAS GPS Receiver providing precise positioning for reliable operation

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Please note, Aircraft Spruce Australia's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Australia assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.