A 406 MHz beacon will send a complete digital code even if it is only on for less than a minute.  It is important that you turn your beacon off then contact authorities immediately if any accidental activation occurs.  These authorities include the appropriate Rescue Coordination Center, Coast Guard Station, Air Traffic Control, Flight Service Station.  Inform them that the false alert was transmitted and should be cancelled.  Have your beacon's fifteen-character identification (ID) code available (if possible) when you contact them.