Furuno FCV600 CHIRP Fish Finder [FCV600]FCV600 CHIRP Fish Finder The 5. 7 FCV600 is capable of driving either a CHIRP or dual frequency CW (continuous wave) transducer, allowing users to configure the fish finder to suit almost any need. With a sleek, piano black presentation, comfortable rubber keys, and a robust rotary knob controller, the FCV600 gives users the freedom to choose from a wide variety of transducers. The soft touch keys are inclined at the top and bottom, making them