TT31 Transponder

Trig's TT31 transponder is ideal for retrofitting the popular Bendix King legacy transponders. The TT31 "plugs and plays" directly into the existing KT76A, KT76C and KT78A stack. This significantly reduces installation time and cost. It provides pilots with Class 1 Mode S technology that is also capable of ADS-B Out 1090ES operation - the latest international standard.

The TT31 is compatible with many popular GPS sources including Garmin GNS and GTN navigators and Trig TN70. This makes for best-in-class installation flexibility. The FAA's free STC allows the TT31 to be installed as an ADS-B Out compatible solution in 650 aircraft types.

• Improved retrofit performance – ‘plug and play’ Mode S installation for KT76A, KT76C and KT78A
• Certified for IFR / VFR flight
• Amongst the lowest power consumption in class
• TIS traffic capabilities – portable and/or panel mounted avionics
• Backlit LED display
• No cavity tube – no warm up time required (no need for dropper resistors)
• Free European Minor Change approvals
• Free FAA ADS-B STC for 650 aircraft types
• Software provides the widest compatibility with third party avionics
• Unbeatable value and quality – designed and manufactured in the U.K.
• Two year worldwide warranty