Systems and methods relating to collision avoidance systems for rotary-winged vehicles having rotors causing a respective communication interruption are presented. An exemplary vehicle can be assigned with a unique time slot in a data link communication network for transmitting data in the form of pulses to other participants, and can include a central processing unit configured for receiving inertial motion information from an INS, position information and time synchronization from a GPS and data indicative of state information of at least one participant from a data link radio, and for producing a collision avoidance data regarding the host and the participant, and a radio controlling utility configured for receiving a pulse width, giving rise to a modulated pulse, and for generating and transmitting a repetition of substantially identical modulated pulses, each of which indicating the state information of the vehicle, thereby substantially reducing data discrepancies due to rotor interruptions.