Introducing Raymarine Quantum 2 CHIRP Radar with doppler collision avoidance technology. Quantum 2 with the next generation CHIRP pulse compression radar by Raymarine provides superior target images at both long and extremely short ranges. Using advanced Doppler processing, the system instantly highlights moving objects that the radar picks up and color-codes them to indicate whether they are moving towards or away from you. Quantum with doppler makes it easy to distinguish potentially dangerous targets when navigating heavily trafficked waters.