Humminbird 531338-1_A, 47 manual Bottom Presentation

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M47_Man_Eng_531338-1_A.qxd 12/13/2004 12:35 PM Page 20

Bottom Presentation

As the boat moves, your Matrix™ Fishing System 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.

Bottom Contour Profile with RTS® Window.

Temp/Speed Accessory is optional.

Inverse is a method where weak returns are shown with dark pixels and strong returns with lighter pixels. This has the benefit of ensuring that weak signals will be clearly visible on the display.

Structure ID® represents weak returns as light pixels and strong returns as dark pixels. This has the benefit of ensuring that strong returns will be clearly visible on the display.

Hard Bottom

Rocky Bottom

Soft Bottom

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.

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

Bottom Black displays all pixels below the bottom contour as black, regardless of signal strength. This has the benefit of providing a high contrast between the bottom and other sonar returns on the display. Any targets such as fish, structure and thermoclines will be shown using the Structure ID® method.

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Contents Matrix 47 Operations Manual Thank You Table of ContentsSonar Menu Tab Alarms Menu TabSetup Menu Tab Views Menu Tab Accessories Menu Tab Troubleshooting2D Sonar How Sonar Works3D Sonar What’s On the Display 3D View Temperature water surface temperatureBelow the cursor What’s On the Display 2D View3D Sonar View Views3D Sonar View Beam Sonar View 3D/2D Sonar Combo ViewBeam Sonar View 3D/2D Sonar Combo View2D Sonar View 2D Sonar ViewReal Time Sonar RTS Window 2D Zoom View 2D Zoom View2D Big Digits View 2D Big Digits ViewBottom Presentation Menu Key POWER/LIGHT KeyKey Functions View KeyMatrix 47 3D Title Screen Accessory BusPowering Up the Unit Menu SystemNormal Operation Start-Up Options MenuPC Connect Self Test Accessory TestSimulator System Status3D Lower Range Sonar X-Press Menu3D Bottom Zoom Beam Sensitivity Reset View3D History 2D Sonar WindowLower Range To adjust the Upper RangeTo adjust the Lower Range Upper RangeZoom Level Chart SpeedBottom View Beam Select Sonar Menu Tab3D Bottom Style 3D Frame StyleFish ID 3D Reference Fish ID+Fish Sensitivity Highlight RTS Window on the Sonar main menu To change the RTS Window settingTo change the Depth Lines setting Depth LinesWater Type Surface ClutterNoise Filter Max DepthTo change the Depth Alarm setting Alarms Menu TabDepth Alarm Fish ID AlarmTo change the Low Battery Alarm setting Low Battery AlarmAlarm Tone Setup Menu TabUnits Distance User ModeUnits Depth Units TempSelect Readouts Triplog ResetRestore Defaults Speed Calibration Depth OffsetTemp Offset To turn Nmea Output on or off Nmea OutputViews Menu Tab Following Nmea sentences are outputFuse is operational Accessories Menu TabTroubleshooting Negative terminal or groundFinding the Cause of Noise Display ProblemsProblem Possible Cause Control head loses power at high speedsSpecifications Matrix Fishing System AccessoriesContact Humminbird
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