Avionics FAQ

Although some manufacturers call out specific transponder antennas in their installation manuals, almost any transponder antenna can be used with any transponder. Various models are available based on the screw hole pattern desired and the speed & drag considerations based on the aircraft type.
 


For smaller general aviation aircraft, Southeast Aerospace recommends the stub type AV-22 or CI-101 antenna.

 

 

For medium to larger aircraft, Southeast Aerospace recommends the blade type CI-105 or AV-74 antenna.

 


Ultimately, it is the responsibility of the installer or installing agency to determine what antenna is suitable for the aircraft application.