Unsupported tracks can find the aircraft with the same BCN/ ACID. For example, I could make the unsupported track with the callsign UAL1230. Then, if there is an aircraft that is squawking the same code that is in UAL1230's flight plan, it will associate itself.
Accepting a pointout as a handoff.
Thats all that comes to mind at the moment. This issue will probably grow as the time comes.
Thats all that comes to mind at the moment. This issue will probably grow as the time comes.