If a new transponder is on your "to-get" list, you might want to choose one that's both relevant now and in the future. The KT 74 transponder from Bendix/King is the easiest upgrade for the popular KT 76A/C and KT 78A models, with a 'plug and go' capacity. And it's ADS-B compliant, therefore meeting all 2020 requirements. It is low-cost, easy to install and fits into your existing panel. Suiting your needs now and in the future. KT 74 ADVANTAGE Retrofit - 'plug and play' installation Low-cost solution that will offset future costs Low power consumption ETSO and TSO approved Mode S Accurate readings with updates every few seconds More efficient routing and better situational awareness Meets ADS-B 2020 requirements* FACTS ON THE FLY: ADS-B will result in better communication between pilots and air traffic controllers for more efficient routing and resource management Anyone who flies a Mode C or Mode S transponder will need to be equipped with ADS-B "Out" by 2020 Radar controls can be 12 seconds out of date ADS-B "Out" means you're broadcasting your position information to ground stations and other aircrafts For STC information submit request at time of order The Peregrine Switch Kit is required for installation per STC Part Number: 10-05913.