Trig Avionics TN70 makes ADS-B even more affordable.

Amongst the numerous ADS-B options available one company has a track record of producing proven transponder technology that's both affordable to buy and cost effective to install - saving you even more money. Trig Avionics produces the TT31 transponder, a 'plug and play' retro-fit that's ADS-B capable and replaces old Bendix KT76A, KT76C and KT78A ["]