Lowrance electronic X67C manual Fish I.D. Fish Symbols & Depths

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Fish I.D.(Fish Symbols & Depths)

The Fish I.D. feature identifies targets that meet certain conditions as fish. The microcomputer analyzes all echoes and eliminates surface clutter, thermoclines, and other signals that are undesirable. In most instances, remaining targets are fish. The Fish I.D. feature displays fish symbols on the screen in place of the actual fish echoes.

There are several fish symbol sizes. These are used to designate the relative size between targets. In other words, Fish I.D. displays a small fish symbol when it thinks a target is a small fish, a medium fish sym- bol on a larger target and so on.

The sonar's microcomputer is sophisticated, but it can be fooled. It can't distinguish between fish and other suspended objects such as trotlines, turtles, submerged floats, air bubbles, etc. Individual tree limbs ex- tending outwards from a group of limbs is the hardest object for the Fish I.D. feature to distinguish from fish.

You may see fish symbols on the screen when actually, there are no fish. The reverse is also true.

Does that mean Fish I.D. is broken? No — the feature is simply inter- preting sonar returns in a specific way to help take some of the work out of reading the screen. Remember: Fish I.D. is one of the many tools we provide so you can analyze your sonar returns for maximum fish finding information. This and other features can help you successfully "see" beneath the boat under varied water and fishing conditions. So, practice with the unit in both the Fish I.D. mode and without to become more familiar with the feature. The default for Fish I.D. is off.

Sonar Features menu with Fish I.D. Symbols selected.

When the check box to the left is checked, the feature is on.

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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 AccessoriesShoot-through hull installations Transom installationTrolling motor installations Transom Transducer centerline Hull bottom Good location Poor location Location Poor angleDot Transom Transducer Assembly and MountingMetal Nut washer Rubber RatchetsWashers BoltBottom Hull Flat-bottom hull Deep-vee hull TransomInternal tooth washer TMB-S bracket Bolt Nut Flat washer Trolling Motor Bracket InstallationFull fish arch Proper transducer angle Transducer Orientation and Fish ArchesPartial fish arches Transducer aimed Too far back 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 Cup Bolt Nut Washer Transducer Tie nylon cord here SuctionCup Hull TransducerBasic Sonar Operation Exit MemoryMenus 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 AlarmsBacklight Level To adjust and turn on the deep alarmTo turn the fish alarm on Calibrate Speed Chart SpeedColorLine Thin or no Colorline Wider Colorline ContrastCursor line Depth box Depth CursorDepth Range Automatic To switch to Manual Depth RangeDepth Range Manual To turn Auto Depth Range on againDepth Range Upper and Lower Limits Area zoomed FasTrackFish I.D. Fish Symbols & Depths FishTrack Symbols with FishTrack depthsHyperScroll Noise RejectionTo 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 HelpReset Water Distance Reset OptionsScreen Contrast and Backlight Level Sensitivity & Auto SensitivityAutomatic Sensitivity Set Keel Offset Press MENUMENU↓ to SET Keel Offsetent Set LanguagePress MENUMENU↓ to Software Infoent Sonar Color ModeSoftware Version Information Sonar Page & Sonar Chart Display Options Digital Data/Chart Sonar Simulator Stop ChartPress ↓ or ↑ to select clarity levelEXITEXITEXIT Surface ClarityUnits of Measure TransparencyZoom & Zoom Bar VolumeUpper and Lower Limits 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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