Raymarine Quantum 2 Q24D Chirp Radome - Keep inexperienced boaters and hidden dangers at bay even in the most congested waterways. Quantum 2 with Doppler collision avoidance technology makes it easy to discern potentially dangerous targets when navigating in high-traffic areas. Using advanced Doppler processing, Quantum 2 instantly highlights moving radar contacts and color codes them to indicate whether they are inbound or outbound. Features: Quantum 2 Doppler Radar, perfect for sailboats, RIBs, and smaller powerboats Available as a standalone scanner with no power or data cable or with 10m and 15m cabling Provides excellent short-range detection and enhanced target detail with 18ft (6m) minimum range Simplified, fast installation and can utilize existing Raymarine scanner fixing points Once installed, Quantum 2 starts right up and immediately provides awareness