An apparatus comprising: a radar transceiver configured and arranged to transmit radar signals and to receive reflections of the transmitted radar signals over a communication channel; a data compression circuit (1510, 1520) configured and arranged to: transform the received reflections of the transmitted radar signals into data representing the radar signals and having data points based on a distance of respective objects from which the transmitted radar signals are reflected, relative to the radar transceiver; determine a velocity of an object from which the reflections of the transmitted radar signals are received using the Doppler Effect characteristics of the received reflections of the transmitted radar signals; determine a probability that an object from which the reflections of the transmitted radar signals are received will collide with a vehicle to which the radar transceiver is coupled, based upon at least the velocity of the object and a distance of the communication channel which extends from the radar transceiver to the object and back to the transceiver; determine a compression factor based upon the determined probability; and compress said data representing the radar signals as a function of the determined compression factor, and a data generator circuit configured and arranged to generate an output signal including the compressed data. a radar transceiver configured and arranged to transmit radar signals and to receive reflections of the transmitted radar signals over a communication channel; a data compression circuit (1510, 1520) configured and arranged to: transform the received reflections of the transmitted radar signals into data representing the radar signals and having data points based on a distance of respective objects from which the transmitted radar signals are reflected, relative to the radar transceiver; determine a velocity of an object from which the reflections of the transmitted radar signals are received using the Doppler Effect characteristics of the received reflections of the transmitted radar signals; determine a probability that an object from which the reflections of the transmitted radar signals are received will collide with a vehicle to which the radar transceiver is coupled, based upon at least the velocity of the object and a distance of the communication channel which extends from the radar transceiver to the object and back to the transceiver; determine a compression factor based upon the determined probability; and compress said data representing the radar signals as a function of the determined compression factor, and transform the received reflections of the transmitted radar signals into data representing the radar signals and having data points based on a distance of respective objects from which the transmitted radar signals are reflected, relative to the radar transceiver; determine a velocity of an object from which the reflections of the transmitted radar signals are received using the Doppler Effect characteristics of the received reflections of the transmitted radar signals; determine a probability that an object from which the reflections of the transmitted radar signals are received will collide with a vehicle to which the radar transceiver is coupled, based upon at least the velocity of the object and a distance of the communication channel which extends from the radar transceiver to the object and back to the transceiver; determine a compression factor based upon the determined probability; and compress said data representing the radar signals as a function of the determined compression factor, and a data generator circuit configured and arranged to generate an output signal including the compressed data.