Lowrance electronic X67C manual Surface Clarity, Press ↓ or ↑ to select clarity levelEXITEXITEXIT

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Sonar Menu with Stop Chart command selected. The box is unchecked,

indicating that the chart is scrolling across the screen.

Surface Clarity

The markings extending downward from the zero line on the chart are called "surface clutter." These markings are caused by wave action, boat wakes, temperature inversion and more.

The surface clarity control reduces or eliminates surface clutter signals from the display. It does this by changing the sensitivity of the receiver, decreasing it near the surface and gradually increasing it as the depth increases.

There are three levels of surface clarity available: low, medium, or high. It can also be turned off. The default level is off.

To adjust the Surface Clarity level:

1. From the Sonar Page, press MENU↓ to SONAR FEATURESENTENT.

Sonar Features menu with Surface Clarity selected.

2. Press ↓ or ↑ to select clarity levelEXITEXITEXIT.

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Contents X67C Page Table of Contents Depth Range Upper and Lower Limits Introduction Capabilities and Specifications X67CHow Sonar Works How to use this manual typographical conventions Press ↓ to Fish ID Symbolsentexitexit Installation Preparations Installation and AccessoriesTrolling motor installations Transom installationShoot-through hull installations Transom Transducer centerline Hull bottom Good location Poor location Location Poor angleDot Transom Transducer Assembly and MountingBolt RatchetsMetal Nut washer Rubber WashersBottom Hull Flat-bottom hull Deep-vee hull TransomInternal tooth washer TMB-S bracket Bolt Nut Flat washer Trolling Motor Bracket InstallationPartial fish arches Transducer aimed Too far back Transducer Orientation and Fish ArchesFull fish arch Proper transducer angle SHOOT-THRU-HULL Preparation Transducer location High speed Trolling speed Spread epoxy here Sand this surface Speed/Temperature SensorsRear view Sonar unitHST-WSU Good location Transom Bottom of hull Power ConnectionsPage 76.9 Millimeter Inch 70.3 107.5 82.7Using the Quick Release Mounting Bracket Depress ratchets to release Bracket frontPPP-12 Portable Power Pack with an X67C stowed for transport Page Hull Transducer Tie nylon cord here SuctionCup Bolt Nut Washer Transducer CupBasic Sonar Operation Menus MemoryExit Main Menu Commands Sonar Menu Commands Pages Page Page Basic Sonar Quick Reference Bait School Thermocline With fish Fish Arches Sonar OperationsPage Important Tip To Restore Factory SettingsOther Free Training Aids ASP Advanced Signal Processing Advanced Sonar Options & Other FeaturesTo adjust and turn on the shallow alarm AlarmsTo turn the fish alarm on To adjust and turn on the deep alarmBacklight Level Calibrate Speed Chart SpeedColorLine Thin or no Colorline Wider Colorline ContrastCursor line Depth box Depth CursorTo turn Auto Depth Range on again To switch to Manual Depth RangeDepth Range Automatic Depth Range ManualDepth Range Upper and Lower Limits Area zoomed FasTrackFish I.D. Fish Symbols & Depths Noise Rejection Symbols with FishTrack depthsFishTrack HyperScrollTo turn off displayed data Overlay DataTo change displayed data font size Ping Speed & HyperScrollTo adjust Sensitivity From the Sonar Page, press Menuent To turn off HyperScroll Pop-up HelpSensitivity & Auto Sensitivity Reset OptionsReset Water Distance Screen Contrast and Backlight LevelAutomatic Sensitivity Set Keel Offset Press MENUMENU↓ to SET Keel Offsetent Set LanguageSoftware Version Information Sonar Color ModePress MENUMENU↓ to Software Infoent Sonar Page & Sonar Chart Display Options Digital Data/Chart Sonar Simulator Stop ChartPress ↓ or ↑ to select clarity levelEXITEXITEXIT Surface ClarityUnits of Measure TransparencyUpper and Lower Limits VolumeZoom & Zoom Bar To turn on the Zoom Bar Zoom PanPage Troubleshooting Page Noise Page Page Lowrance Electronics Full ONE-YEAR Warranty How to Obtain Service… Accessory Ordering Information for all countries Visit our web site

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