The colors on the legend are the different echo ... A tilt angle of 0.5° means that the radar's antenna is tilted 0.5° above the horizon. Viewing multiple tilt angles can help one detect ...

18-inch antenna dome, 4 kW power output and 24-mile range. The Raymarine Axiom 7 features a 7-inch color touchscreen multifunction display ($649) along with the Raymarine Quantum Q24C 18-inch 24-mile ...