Retrofit – ‘plug and play’ installation Great functionality and performance ETSO and TSO approved Mode S Replacing your old transponder or updating your aircraft avionics? If so, the TT31 should be your panel mount transponder of choice. Fixed wing and rotary pilots around the world have selected the TT31 due to its superior features, great value and superb support. The TT31 is the easiest upgrade to the popular KT76A and KT78A, with a plug and play capability this transponder gets to work straight out of the box. Capable of supporting 1090 MHz Extended Squitter ADS-B Out the TT31 is fully approved by EASA and the FAA, for IFR and VFR use. The TT31 – low power, high performance. The transponder has a bright and easy to read backlit display, operation is simple via a conventional rotary knob enabling rapid selection of Squawk code and Flight ID. The TT31 comes with additional features that include a stop watch, flight timer and altitude alarm.

The TT31 has the lowest power consumption in its class (half that of most legacy transponders), it needs no warm up time and is ready to work as soon as you strap in. The reliability of an aircraft’s avionics can be adversely affected by excessive heat. The TT31’s low power consumption produces less heat in your avionics stack and significantly reduces loading on your aircraft’s electrical system. This efficiency has no impact on performance; as a consequence fitting a TT31 actually enhances the reliability of your entire avionics system. The TT31 conventional panel mount transponder – the class...