Shadin Avionics’ Transponder products provide a means to manipulate and generate transponder information in a variety of different platforms such as Flight ID, ADS-B, and Enhanced Surveillance. Our experience has found that common issues related to these modifications limit transponder capabilities. Shadin products help to expand these offerings, providing functions that are not currently available in existing systems. We provide these solutions without the need to update or replace existing systems that are currently installed on the aircraft.