A SURVEILLENCE RECEIVER FOR EVALUATING MODE A/C/S ACTIVITY

摘要

When the mode-S transponder was developed, the system was provided with a number of communications capabilities. It was envisioned that a number of enhancements of the modern cockpit would use the mode-S data link. At the time of the development of the mode-S transponder, it was also envisioned that the mode-S transponder would receive a high level of penetration into the secondary radar transponder population because of mandated installation of mode-S.