Air/ground data communication radios for future ATM

Any evolution in the aviation world tends to be challenging, especially if it has any impact on the systems belonging to the safety-critical aircraft domains. In this context the migration of the air/ground Air Traffic Control (ATC) communication from voice to data seems to be an ambitious objective. This paper will provides avionics supplier's point of view on what would be the impact of such migration on the airborne communication radios equipage and what are the possible candidate solutions in this domain.