In growing numbers, freshwater anglers are also “tuning in and turning on,” spurred by increasing availability of smaller sized, affordable electronic chart plotters and fishing charts for popular freshwater lakes and rivers. For about the cost of a high-performance stainless prop, freshwater anglers can install a GPS/chart plotter and add satellite boating navigation and detailed waterway maps to their arsenal of weapons.
Today’s best marine GPS receivers can pinpoint your position to within three meters anywhere in the world, allowing you to navigate with accuracy and – most importantly – return to “fishy” areas. And with the proliferation of inexpensive, hand-held GPS units that can fit in a tackle box, many fishermen are “steering by the numbers” to do just this.
Using an electronic chart plotter, however, adds a whole new dimension. Electronic chart plotters add marine map technology capable of showing your boat’s position and movement over a digitized map of the lake or river’s bottom. Depending on the level of detail, this digital cartography can include submerged creek channels, drop-offs, points, brush piles, sunken islands and other structure items that are critical to fishermen.
With a little imagination, it’s easy to see how a real-time representation like this can help the freshwater anglers. By really knowing the layout of the lake and where your boat is positioned in relation to key structure, you can spend more time fishing where the fish are. And by correlating what you see on the electronic chart plotter with information from your depth-sounder, you won’t have to wonder what’s under your boat. In fishing, knowledge is confidence. And confident anglers catch more fish.
Of course, an electronic chart plotter can only provide as much detail as is contained on the digital cartography it is running. Companies like C-MAP have come a long way in the development of extremely detailed electronic charts for the nation’s most popular freshwater fishing areas. The company’s MAX Lakes catalog of specialized freshwater fishing charts was developed with one purpose in mind — to help freshwater anglers catch more fish. Today, C-Map MAX Lakes fishing charts are available covering thousands of popular lakes and waterways in every U.S. state.
There are many ways savvy fishermen use this electronic chart data to their advantage. For example, walleye anglers can use their electronic chart plotters to focus and fine-tune their trolling presentations. Successful walleye trolling is based on precise boat positioning, boat speed and bait presentation, and a plotter gives you an extra high-tech tool. If the fish are hanging along an edge or suspended over an underwater riverbed, you can position your boat precisely, track your progress on the map and make adjustments for wind and current.
Say you’re a bass fishermen, and you’re working a steep drop off a submerged point with a pig-and-jig or live bait. Same idea – you can monitor your boat’s progress in relation to the shoreline and the bottom, and make small adjustments as necessary. And with the accuracy of today’s marine electronic GPS, you can keep working productive water by marking where you hookup and returning to this area through subsequent drifts.
These are just a few of the ways an electronic chart plotter and specialized fishing charts can make a wizard out of any freshwater fisherman. Whether the name of your game is largemouth, walleye, trout, crappie or stripers, C-Map charts will help you catch more fish. Visit your boat dealer or electronics store and get turned on to the world of electronic charts.

My earlier articles detailed just how important navigation electronics are to Quinlan (he’s sponsored by Jeppesen Marine and Simrad). On our trip, we ran about 20 miles out of Marina Del Rey Harbor to an offshore high spot known as the 270. Using his Simrad CX44 chart plotter and bathymetric C-MAP Fishing Contour Charts, we ran to an area several miles upwind of the 270. We “power chummed” (idling forward while dragging a chum bucket) back towards the 270 for a couple of miles, then set up to precisely drift back over the high spot. When we added a stream of fresh chum using Quinlan’s homemade “chum churn,” we soon had a nice slick behind the boat that eventually reached 8 miles in length.









A significant departure from traditional “pulse” radars that use powerful magnetrons, Navico Broadband Radar is based on solid-state technology similar to that used in military and commercial radar applications. Broadband Radar delivers superior target resolution and separation where it matters most — in tight quarters and crowded waterways. This system is able to clearly differentiate between docks, channel markers, pilings, jetties, piers and other features as close as only a few meters from the boat (minimum range scale for Broadband Radar is 1/32 nm).
Broadband Radar will also be compatible with Northstar and Simrad systems operating Jeppesen Marine’s advanced C-Map MAX Pro cartography. The processor based Northstar 8000i and Simrad GB40 Glass Bridge system — both providing information via one or more 10”, 12” or 15” displays — are professional grade navigators made even more powerful with the addition of Broadband Radar. C-Map MAX Pro, Jeppesen Marine’s most advanced cartography for the recreational boating market, delivers the ability to combine Broadband’s inherently superior radar displays with state-of-the-art charting features like Virtual Earth 3D displays of land and sea contour, 2D and 3D satellite photo overlays, and more.