Humminbird 77c manual Bottom Presentation

Page 9

M77_Man_Eng_531350-1_B.qxd 1/3/2005 4:29 PM Page 16

Bottom Presentation

As the boat moves, the unit charts the changes in depth on the display to create a profile of the Bottom Contour. The type of bottom can be determined from the return charted on the display. A Hard Bottom such as compacted sediment or flat rock appears as a thinner line across the display. A Soft Bottom such as mud or sand appears as a thicker line across the display. Rocky Bottoms have a broken, random appearance.

NOTE: A sloping bottom will be represented as a thicker line across the display. Also, harder bottoms will be displayed with red and softer bottoms will be displayed with blue.

The sonar returns from the bottom, structure and fish can be represented as either WhiteLine® or Structure ID®. See Sonar X-Press™ Menu: Bottom View for details on how to set the bottom view.

Structure ID® represents weak returns in blue and strong returns in red.

WhiteLine® highlights the strongest sonar returns in white, resulting in a distinctive outline. This has the benefit of clearly defining the bottom on the display.

11

12

Image 9

Contents Matrix 77c Operations Manual Thank You Table of ContentsSetup Menu Tab Alarms Menu TabViews Menu Tab Accessories Menu Tab Troubleshooting Sonar X-Press MenuDualBeam Plus Sonar How Sonar WorksWhat’s On the Display Temperature water surface temperatureSonar View ViewsUnderstanding Sonar History Real Time Sonar RTS WindowSonar Zoom View Big Digits View 200/83 kHz Split Sonar View200/83 kHz Split Sonar View Big Digits ViewBottom Presentation Key Functions POWER/LIGHT KeyView Key Menu KeyPowering Up the Unit Accessory BusAdvanced features such as WeatherSense, GPS Exit KeyPress the Menu key once to display Menu SystemKeys to reactivate the X-Press Menu Change to the screenStart-Up Options Menu Exit Normal operation by powering your Fishing System offNormal Operation SimulatorSystem Status PC ConnectSonar X-Press Menu To adjust the Upper Range To adjust the SensitivitySensitivity Upper RangeChart Speed Lower RangeBottom View Zoom Level To adjust the Zoom LevelSonar Menu Tab Sonar Zoom View OnlyFish ID+ Beam SelectTo use Beam Select Highlight Beam Select on the Sonar main menuFish Sensitivity KHz SensitivityDepth Lines Surface Clutter Noise FilterMax Depth To change the Water Type setting Alarms Menu TabSetting. Fresh, Salt, Default = Fresh Water TypeFish ID Alarm Depth AlarmLow Battery Alarm Temp AlarmUnits Depth Setup Menu TabUnits Temp Units DistanceTriplog Reset User ModeRestore Defaults Units SpeedSelect Readouts TemperatureVoltage To Select ReadoutsTemp Offset Depth OffsetSpeed Calibration Nmea OutputAccessories Menu Tab Views Menu TabTo Change the View Status of Any View Display Problems TroubleshootingProblem Possible Cause Control head loses power at high speedsMatrix Fishing System Accessories Finding the Cause of NoiseIsolation Specifications Contact Humminbird