Is mode S transponder more advanced than mode C?
Mode S, short for “Mode Select,” is a type of transponder that offers more advanced communication capabilities than mode A or mode C transponders. Mode S, or Selective Mode, is an advanced secondary surveillance radar (SSR) system used in air traffic control and aircraft communication.A Mode S (Selective) Transponder is an advanced type of transponder used in aircraft that enhances air traffic control (ATC) surveillance capabilities. It provides a more detailed and accurate picture of the airspace by transmitting data about the aircraft’s altitude, identity, and other flight information.Mode S. Another mode called Mode S (Select) is designed to help avoiding overinterrogation of the transponder (having many radars in busy areas) and to allow automatic collision avoidance. Mode S transponders are compatible with Mode A and Mode C Secondary Surveillance Radar (SSR) systems.