The GP1870F features an internal antenna for ease of installation. It’s dual-range display allows you to view both short and long ranges of your chart simultaneously in a split-screen presentation. Furuno’s RotoKey interface allows for simple and stress-free operation. Turn the RotoKey for a finely stepped zoom control, or press the knob for full access to the GP1870F controls. The LCD screen allows for viewing from virtually any angle, even while wearing polarized sunglasses, plus the screen is bonded to ensure fogging-free operation.
The GP1870F supports C-MAP 4D by Jeppesen charts. C-MAP 4D is a versatile, all-in-one charting solution that gives users of Furuno’s GP1870F specific content and features needed to optimize their time on the water. The C-MAP 4D charts provide cruisers and sailors with standard vector chart content plus dynamic raster chart presentations, 3D views, satellite images, exclusive Easy Routing and more. In addition, C-MAP 4D empowers the Furuno GP1870F with a range of additional detail, content and features developed especially for serious coastal and offshore fishermen.
The GP1870F incorporates a powerful 600W/1kW Furuno Fish Finder, and introduces a host of new features. Post-Processing Gain Control allows you to view changes to the Gain setting immediately for all returns on the screen, making it easier than ever to dial in your Fish Finder for local conditions, while the White Line feature shows you fish lying on or near the bottom at a glance.
Whether fishing, diving, navigating or anchoring, knowing bottom type is a major advantage for virtually any boater. The advanced signal processing of the GP1870F's Fish Finder provides a graphical display of the water column and objects in the water, in addition to showing composition of the seafloor. When connected to an appropriate transducer, the Bottom Discrimination feature provides a graphical display showing the characteristics of the seafloor as either mud, sand, gravel or rock. Amazingly, it can also show a bottom type probability curve when boating in an area with mixed bottom composition.
The Accu-Fish feature is a revolutionary fish size assessment function that can tell you the approximate size of the fish below your boat. Fish symbols appear on the screen, along with the size of the fish or the depth where it found the fish. It can detect fish size from 4 inches up to about 6 feet long, in depths of 7 feet to well over 300 feet of water. Accu-Fish signal processing blends the high and low frequencies to depict fish targets of all types simply, clearly and distinctly. Now, fishermen can clearly and easily distinguish big billfish around a bait ball, or see through bait and trash fish on the surface to target "the big one" below.