Humminbird 141c manual Bottom Range, Sonar Menu Tab, To turn on Bottom Lock

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Bottom Lock

(Sonar Zoom View only)

Bottom Lock changes the mode of the Zoomed view in the Sonar Zoom View. Bottom Lock continuously graphs the bottom at a constant point on the display regardless of changes in depth. This "flattens" out the bottom contour, but is effective at showing fish on or near the bottom.

To turn on Bottom Lock:

1. In the Sonar Zoom View, highlight Bottom Lock on the Sonar X-Press™ Menu.

2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Bottom Lock setting to on. (Off, On, Default = Off)

Bottom Range

(Sonar Zoom View only, when Bottom Lock is On)

Bottom Range allows you to control how much of the water column, measured up

 

from the bottom, is shown in the Sonar Zoom View. Choose a small value to see low-

 

lying bottom structure or details of the bottom return. Choose a larger value to see

 

large structure in deeper water. It is possible to set the Bottom Range to be greater

 

than the depth. In this case, you may see surface clutter in a wavy band that mirrors

Sonar Menu

changes in the depth.

To adjust the Bottom Range:

1.In the Sonar Zoom View, highlight Bottom Lock on the Sonar X-Press™ Menu.

2.Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the Bottom Lock setting to on. (Off, On, Default = Off).

3.Once you turn on Bottom Lock, the Bottom Range X-Press™ menu choice will be displayed. (10 - 60 feet, or 3-20 meters [International Models only], Default = 15 feet)

Sonar Menu Tab

Press the MENU key twice to access the Main Menu System and then press the RIGHT Cursor key to select the Sonar tab.

NOTE: Menu choices will vary depending on system settings such as whether the unit is set for Advanced User mode.

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Contents 141c Operations Manual Table of Contents Thank YouTable of Contents How Sonar Works Peak to Peak measures power output at the highest pointsSingle Beam Sonar What’s On the Display High Sonar Intensity Return Bait BallViews Sonar ViewSonar View Zoom View Big Digits View Circular Flasher View Sonar ViewReal Time Sonar RTS Window Understanding Sonar HistoryBottom Presentation Sonar Zoom View Sonar Zoom ViewPOWER/LIGHT Key Big Digits ViewKey Functions Circular Flasher ViewMenu Key WAY Cursor Control KeyExit Key Owering Up the UnitMenu System Sonar Tab, Normal Mode Sonar Tab, Advanced ModePress TM Menu Normal Operation Start-Up Options MenuSimulator Accessory Test System Status Sonar X-Press TM MenuConduct a unit self-test StatusTo adjust the Sensitivity To adjust the Upper RangeSensitivity Upper RangeLower Range Chart SpeedZoom Level To adjust the Bottom Range Bottom LockBottom Range Sonar Menu TabTo change the Fish ID Sensitivity setting To change the RTS Window settingFish ID+TM Fish ID SensitivityZoom Width Bottom ViewDepth Lines Noise Filter Surface ClutterMax Depth Alarms Menu Tab To change the Water Type settingAlarms Menu Water TypeDepth Alarm Fish ID AlarmLow Battery Alarm Temp AlarmAlarm Tone Setup Menu TabTo change the Alarm Tone setting Highlight Alarm Tone on the Alarms main menuUser Mode Units DepthUnits Temp Units DistanceRestore Defaults Triplog ResetSelect Views Depth Offset Select ReadoutsTemp Offset Troubleshooting To change the Speed Calibration settingSpeed Calibration Advanced, with Temp/Speed onlyDisplay Problems Problem Possible CauseControl head loses power at high speeds Finding the Cause of NoiseGlossary SpecificationsSonar Terms 531442-1A141cEng.qxd 11/15/2005 840 PM Receiver See Transmitter 531442-1A141cEng.qxd 11/15/2005 840 PM 531442-1A141cEng.qxd 11/15/2005 840 PM Contact Humminbird