EchoESX 2017-05-29T12:43:40+00:00


Mode S Transponder with ADS-B Out


The EchoESX (Extended Squitter Experimental) is a Mode S, Class 1, remote mount transponder designed to meet the 2020 requirements of 14 CFR 91.225. Ease of installation is a main design criteria to make echo the most affordable ADS-B solution for Experimental and LSA aircraft.  EchoESX is designed to interface directly to the most popular EFIS systems including Dynon Skyview, GRT and MGL Avionics.  An optional control head is available for traditional panel mount installations.  EchoESX offers full Class 1 250W Mode S transponder performance in an incredibly small 75-gram package.  When every ounce counts choose EchoESX.

echoESX is about the size of a deck of playing cards and 25% lighter than the average smartphone


  • Mode S transponder

  • ADS-B 1090ES DF17 transmitter

  • Meets the performance requirements of TSO-C166b Class B1S

  • Meets the ADS-B Out equipment performance requirements of 14 CFR 91.227

  • Meets the minimum performance requirements of the following RTCA specifications:

    DO-181E Level 2els Class 1
    DO-260B Class B1S

  • US Patents Pending