Humminbird 408120-1 Fishfinder 597ci HD DI Combo

Humminbird 597ci HD DI Combo – Timber, rocks, or even fish–watch it all take shape on a crystal-clear, full-color, 5-inch display. With screens that size, it’s easy to take advantage of versatile Down Imaging Sonar and exclusive Humminbird SwitchFire technology, with a beam sensitive enough to track a jig down to 70 feet and separate fish as close as 2.5 inches apart. Find your way using built-in UniMap or up the ante with optional Lakemaster and Navionics cartography. Get all this technology in a convenient in-dash mount, or use Humminbird’s Tilt & Swivel Quick Disconnect Mounting System.
Humminbird Fishfinder Features

Down Imaging

Humminbird has pointed their Side Imaging technology in a new direction: straight down. Now you can see the detail of what is happening below your boat. Timber, brush, bridge pilings, rocks and any other structure will pop with stunning detail as you patrol the water. Take a peek; you’ll like what you see.

DualBeam Plus

Get the best of both worlds, with selectable narrow and wide beams you can view individually, or melded into one display. A precision 20° beam provides high accuracy returns of fish, structure, and bottom profile. The wider 60° beam provides greater coverage for fish and bait fish. You can view the two beams separately, side by side, or blended together for the most complete picture.

Switchfire Sonar

When you hit the water, you don’t limit yourself to one bait. So why limit your sonar? Exclusive Humminbird SwitchFire Sonar gives you the power to choose how returns are displayed. With two unique modes, you have complete control to adjust with the fishing conditions, making our down-looking sonar an even more valuable fishfinding tool.
Humminbird 597ci HD DI Combo Down Imaging
Down Imaging lets you see the detail of what is happening below your boat.
Humminbird 597ci HD DI Combo UniMap
Fish like a pro on your home lake, or a lake far from home, thanks to Humminbird ContourXD maps of over 3000 lakes.
Humminbird 597ci HD DI Combo
Split Screen Zoom increases the displayed resolution to separate sonar returns that are very close together.

Split Screen Zoom

Split Screen Zoom increases the displayed resolution to separate sonar returns that are very close together. In this view, the display is split to show a narrow slice of the full range view on the right and the zoomed view on the left. The zoom preview box on the right tracks the bottom in the full range view.

Freeze Frame/Structure Marking

Pressing any arrow on the four-way cursor control instantly stops the sonar graphic display to allow a closer inspection of submerged structure, bait fish, and underwater contours. Movable cursor feature allows you to instantly discern depth of any sonar return and mark waypoints from the sonar screen for navigation. Pressing the EXIT key will exit the freeze frame and the display will start to resume scrolling. Mark the location of fish-attracting structure, bottom transitions, or any feature anywhere on traditional sonar with the Sonar Cursor.

Selective Fish ID+

Fish ID+ uses advanced sonar processing to interpret sonar returns, and displays a Fish Symbol when very selective requirements are met. When a fish is detected, a fish icon and its depth are displayed above the return that has been classified as being a fish. Three different fish icons represent intensity of the sonar return, and provide an indicator of relative fish size.

Real Time Sonar (RTS) Window

A Real Time Sonar (RTS) Window appears on the right side of the display in the Sonar View only. The RTS Window always updates at the fastest rate possible and shows only the returns from the bottom, structure, and fish that are within the transducer beam. The RTS window can be displayed as narrow (standard), wide, or off.

Sonar Echo Enhancement

Sonar Echo Enhancement shows fish, bait, and more–even watch your vertical jigging on-screen. This is possible through advanced sonar processing and provides the details you want and need. It’s important to know what depth the fish are located and equally important to be able to place your lure at that precise depth. Be careful! You may jerk the rod early while watching the screen instead of waiting for the actual bite.

TreuArch Technology

Many competitive sonar products commonly use post processing software to “enhance” the arching effect produced when suspended targets enter and leave a sonar beam. This additional processing can slow down performance and exaggerate the information displayed. Humminbirds TrueArch Technology utilizes parallel processing of sonar data to eliminate unwanted interference and noise and reveal unaltered sonar echoes resulting in true arches of fish targets. This helps anglers more quickly discern the size and depth of fish targets.


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This is a really good fishfinder and having used several different types and makes over the years, I can honestly say this is a real gem to use.
Go on and treat yourself because you will not regret it, I didn’t!

Currently unavailable in the UK therefore I suggest you check this one out which is another really good

Hummingbird Fishfinder.

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