This unit features upgrades to WeatherSense, PC accessories, and more, and a memory card expansion slot for optional cartography. The 797c2 has an ultra-high-contrast, 5″ TFT LCD screen with 640 x 480 lines of resolution in 256 colors for enhanced separation, and an adjustable backlight. This unit’s high-speed, micro-dynamic transducer is reliable to 70 mph, and includes water temperature and GPS speed. The 797c2 has a built-in 16-channel WAAS/EGNOS GPS receiver, and 30-meter-per-pixel resolution UniMap of USA inland lakes, rivers, and coastal areas. This unit includes real-time sonar and echo enhancement technology sensitive enough to track a jig to over 40 feet, to a maximum depth of 1,500 feet, all with a target separation of 2.5″. The 797c2 SI Combo uses side-imaging sonar with two 86° beams for 180° sideways viewing to 150 ft., and DualBeam PLUS sonar with 20° and 60° beams for both wide coverage and better bottom definition. The 797c2 Combo has everything Humminbird has to offer and with advanced accessories including GPS chartplotter it will revolutionize the way you fish. This Comes standard with eight (8) hours of built-in recording time and is compatible with AutoChart Zero Line SD cards for virtually-endless AutoChart Live mapping capacity.Humminbird 797C2 Fish Finder The Humminbird 797C2 SI Combo Color Fish Finder and GPS Chartplotter is pre loaded with Navionics Gold and Hotmaps and is not only for pro anglers but serious recreational fisherman looking for the best. Map depth contours, bottom hardness and vegetation as you drive your boat. You can Create real-time maps of your fishing spots, with access to patented Humminbird LakeMaster features. The CHIRP Side Imaging Filter out noise and clutter for a clearer view of the world below and out to each side of your boat. Get a complete view of the world below with optional charts from Humminbird's LakeMaster and CoastMaster products, as well as your choice of compatible Navionics charts. The Humminbird provides the most complete offering of premium chart options to anglers everywhere. The CHIRP Down Imaging Filter out noise and clutter for a clear view beneath your boat. It Includes charts of more than 10,000 lakes, plus coastal coverage for the continental U.S. Their enhanced basemap provides you with a clear view of underwater terrain and surrounding points of interest so you can fish and navigate with total confidence. The Dual Spectrum CHIRP 2D sonar offers two ways to search, Wide Mode for maximum coverage and Narrow Mode for focusing on the slightest detail.

It has highly-detailed fish arches and a clear view of fish-holding structure and the bottom.

The Humminbird HELIX 7 CHIRP SI GPS G4 helps you catch fish anywhere and gives you a deeper understanding of what's below the ice.

Humminbird navionics gold card