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Humminird Humminbird Advanced Sonar Features

Freeze Frame

Freeze Frame with the ability to Mark Structure on Sonar

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.

Istant Image Update

Instant Image Update

As the boat moves through the water, the sonar chart updates in real time to show the latest information on the sonar screen. A real time sonar (RTS®) window shown on the right side of the display always updates at the fastest rate possible for depth conditions

Real Time Sonar

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.


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.

DualBeam PLUS™ equipped models represent targets detected in the 200kHz narrow beam as Orange Fish Symbols, and represent targets detected in the 83kHz wide beam as Blue Fish Symbols.

Sonar Echo Enhancement

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.

Sonar Recording

Sonar Recordings save digital sonar information so you can play it back onscreen, and even fine tune the unit’s settings to see what else the returns reveal. Available exclusively on 1100, 900, and 700 series models with memory card slot.

Sonar Snapshot

Screen Snapshot

Snapshots are like a digital picture of the screen and can be saved anytime you mark a hotspot. Available exclusively on 1100, 900, and 700 series models with memory card slot.

Split Screen Zoom

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.

True Arch Technology

TrueArch™ 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. Humminbird’s 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.

Wide-Narrow Cone Split Screen

Wide/Narrow Cone Split Screen

This screen separates the sonar data using the two primary user selectable down-looking beams simultaneously in split screen. Fish ID feature shown indicates depth and in which beam fish are detected by changing color, size, and/or orientation of the fish icon.

Navionics charts

Humminbird 1197c
1197c SI


Humminbird 757c


Humminbird 757c




Humminbird Products

575 Fishfinder
Quadra beam transducer

595c Combo
Sonar combo single beam 5” screen

757c Combo
Sonar/chartplotter combo with 5” screen, dual beam sonar

957c Combo
Sonar/chartplotter combo with 8” screen, dual beam sonar

997c SI Combo
Sonar/chartplotter combo with 9” screen, side imaging, dual beam sonar

1197c SI Combo
Sonar/chartplotter combo with 10.4" screen, side imaging, dual beam sonar


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