Humminbird 77c manual Understanding Sonar History, Real Time Sonar RTS Window, Sonar Zoom View

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Understanding Sonar History

It is important to understand the significance of the Matrix™ Fishing System display. The display does NOT show a literal 3-dimensional representation of what is under the water. Each vertical band of data received by the control head and plotted on the display represents something that was detected by a sonar return at a particular time. As both the boat and the targets (fish) may be moving, the returns are only showing a particular segment of time when objects were detected, not exactly where those objects are in relation to other objects shown on the display.

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 for depth conditions and shows only the returns from the bottom, structure and fish that are within the transducer beam. The RTS® Window plots the depth and intensity of a sonar return (see Sonar Menu - RTS® Window).

Sonar Zoom View

Sonar Zoom View increases the displayed resolution to separate sonar returns that are very close together, such as those caused by fish suspended close to the bottom or within structure. In Zoom 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 full range view on the right also contains the Zoom Preview Box that shows what part of the full range view is shown in zoom view on the left; the Zoom Preview Box tracks the bottom in the full range view.

As the depth changes, the zoomed view updates automatically to display a magnified image of the bottom. The Zoom Preview Box shows where the zoomed view is in relation to the full range view. The Zoom Level, or magnification, is displayed in the lower left corner and can be changed to suit conditions (see Sonar X-Press™ Menu: Zoom Level). Upper and Lower Zoom Depth Range numbers indicate the depth of the water which is being viewed.

Digital depth is displayed in the upper left hand corner. The digital readouts in the Sonar Zoom View cannot be customized; therefore, information such as water temperature and voltage are unavailable in the Sonar Zoom View.

The Narrow RTS® Window indicates the sonar intensity through the use of colors. Red indicates a strong return and blue indicates a weak return. The depth of the sonar return is indicated by the vertical placement of the return on the display depth scale.

The Wide RTS® Window indicates the sonar intensity through the use of a bar graph. The length of the plotted return provides an indication of whether the return is weak or strong. The depth of the sonar return is indicated by the vertical placement of the return on the display depth scale.

 

 

 

Sonar Zoom View

 

 

 

 

 

 

Upper Depth Range,

 

 

 

 

Depth

 

 

 

 

 

Full Range View

 

 

 

 

 

 

 

 

Upper Depth Range,

 

 

 

 

 

 

Zoom View

 

 

 

 

 

 

Zoom

 

 

 

 

 

 

Zoomed

 

 

 

Preview Box

 

 

 

 

View

 

 

 

 

 

 

 

 

 

 

Full Range View

Zoom Level

 

Lower Depth Range,

 

 

Full Range View

 

 

 

 

Lower Depth Range, Zoom View

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Contents Matrix 77c Operations Manual Thank You Table of ContentsSonar X-Press Menu Alarms Menu TabSetup Menu Tab Views Menu Tab Accessories Menu Tab TroubleshootingDualBeam Plus Sonar How Sonar WorksWhat’s On the Display Temperature water surface temperatureSonar View ViewsReal Time Sonar RTS Window Understanding Sonar HistorySonar Zoom View Big Digits View 200/83 kHz Split Sonar ViewBig Digits View 200/83 kHz Split Sonar ViewBottom Presentation Menu Key POWER/LIGHT KeyKey Functions View KeyExit Key Accessory BusPowering Up the Unit Advanced features such as WeatherSense, GPSChange to the screen Menu SystemPress the Menu key once to display Keys to reactivate the X-Press MenuSimulator Exit Normal operation by powering your Fishing System offStart-Up Options Menu Normal OperationPC Connect System StatusSonar X-Press Menu Upper Range To adjust the SensitivityTo adjust the Upper Range SensitivityLower Range Chart SpeedBottom View Sonar Zoom View Only To adjust the Zoom LevelZoom Level Sonar Menu TabHighlight Beam Select on the Sonar main menu Beam SelectFish ID+ To use Beam SelectKHz Sensitivity Fish SensitivityDepth Lines Noise Filter Surface ClutterMax Depth Water Type Alarms Menu TabTo change the Water Type setting Setting. Fresh, Salt, Default = FreshTemp Alarm Depth AlarmFish ID Alarm Low Battery AlarmUnits Distance Setup Menu TabUnits Depth Units TempUnits Speed User ModeTriplog Reset Restore DefaultsTo Select Readouts TemperatureSelect Readouts VoltageNmea Output Depth OffsetTemp Offset Speed CalibrationViews Menu Tab Accessories Menu TabTo Change the View Status of Any View Control head loses power at high speeds TroubleshootingDisplay Problems Problem Possible CauseFinding the Cause of Noise Matrix Fishing System AccessoriesIsolation Specifications Contact Humminbird
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