The Power of Simple: Easy-to-use, Easy-to-install Chartplotter/sonar Combos with Sunlight-readable, Auto-dimming Display and Backlit Keypad. Available in 4-inch, 5-inch Square and 7- and 9-inch Widescreen Display Sizes. Chirp Sonar – Chirp Sends a Continuous Sweep of Frequencies Ranging from Low to High, and Interprets Frequencies Individually upon Their Return. With More Information, Chirp Sonar Is Able to Create Crisper Fish Arches with Better Target Separation. The built-in sonar capabilities of echoMAP 52cv include CHIRP sonar, […]