Lowrance electronic X105C DF, X100C manual Calibrate Speed, Chart Speed

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To turn the fish alarm on:

1.Press ALARM↓ to FISH ALARMENTEXITEXITEXIT.

2.To turn off the alarm, press ALARM↓ to FISH ALARMENTEXIT

EXITEXIT.

Calibrate Speed

The speed sensor can be calibrated to compensate for inaccuracies. Be- fore you change the setting, first calculate the percentage that the speed is off. You will enter this percentage in a moment.

For example, if you figure the sensor is reading 10 percent faster than actual speed, you will enter – 10 in the calibration window. If the sen- sor is reading 5 percent slower than true speed, you will enter + 5 in the window.

When you make a run to compare your ground speed to speed sensor speed, perform your test in relatively calm water free of current, if pos- sible. (Unless, of course, you are taking the current speed into consid- eration when making your calculation.) After you have a correction fig- ure, here's how to enter it:

1.Press MENUMENU↓ to CALIBRATE WATER SPEEDENT.

2.Enter the number you calculated earlier: press ↑ or ↓ to change the

first character (+ or –), then press → to move the cursor to the next number and repeat until the percentage is correct, then press EXIT.

Chart Speed

The rate that echoes scroll across the screen is called the chart speed. The default is maximum; we recommend that you leave the speed set there for virtually all fishing conditions.

However, you might consider experimenting with chart speed when you are stationary or drifting very slowly. You may sometimes achieve bet- ter images as you slow down the chart speed to match how fast you are moving across the bottom.

If you are at anchor, ice fishing or fishing from a dock, experiment with a chart speed around 50 percent. If you are drifting slowly, try a chart speed around 75 percent. When you are stationary and a fish swims through the sonar signal cone, the image appears on the screen as a long line instead of a fish arch. Reducing the chart speed may result in a shorter line that more closely resembles a regular fish return.

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Contents X100C X105C DF Lowrance Electronics Inc 12000 E. Skelly Dr Tulsa, OK USA Table of Contents Page Read Me First Page How Sonar Works Keyboard How to use this manual typographical conventionsMenu Commands Arrow KeysPreparations Transducer InstallationShoot-through hull installations Single-frequency transom installationsDual-frequency transom installations Single-frequency trolling motor installationsHow low should you go? Deadrise less than Strakes PadGood location Poor location Location Poor angle Transom Transducer centerline Hull bottom Shoot-thru-hull vs. Transom MountingDot Assembling the bracketTransducerTransducer bracket Ratchet Aligning the transducer on the transomRatchets Drilling mounting holes Assembling the transducerTransom Attaching transducer to transomBottom Hull Flat-bottom hull Deep-vee hull TMB-S bracket Internal tooth washer Bolt Nut Flat washer Trolling Motor Bracket Installation single-frequency onlyHulls With Floatation Materials Partial fish archesTransducer aimed Transducer location High speed Trolling speed Testing Determines Best LocationTrue bottom Second bottom Manual range setting Spread epoxy here Sand this surface Shoot-thru-hull InstallationOptional Speed Sensor Installation Optional Temperature SensorTransom Bottom of hull Good locationPowering a Nmea 2000 Buss Nmea 2000 Power cable Power ConnectionsPowering Your Unit Power Supply cable red and black wires Power connections for the units in this series To Nmea To sonar Network port Units Network Socket Connecting to a Nmea 2000 NetworkNmea 2000 Cable Connections Nmea 0183 Cable ConnectionsMounting the Unit Bracket, In-Dash or Portable Front Bracket Installation173.9 77.1 27.6 137.9 Millimeter 56.9 Inch Other Accessories In-Dash InstallationPortable Installation Face Cover Keyboard Basic Sonar OperationMain Menu Power/lights on and offMain Menu Pages Page Sonar Page, showing full sonar chart mode Basic Sonar Quick Reference Sonar Operations To adjust sensitivity To Restore Factory Settings Fish Symbols vs. Full Sonar ChartOther Free Training Aids Page To change the ASP level ASP Advanced Signal ProcessingDepth Alarms AlarmsZone Alarm Fish Alarm Calibrate Speed Chart SpeedColorLine Thin or no ColorLine Wider ColorLine Depth CursorCursor line Depth box Depth Range AutomaticTo turn Auto Depth Range on again To switch to Manual Depth RangeDepth Range Manual Depth Range Upper and Lower LimitsFish arches Area zoomed To change the upper and lower limitsFish I.D. Fish Symbols & Depths FasTrackTo turn off upper and lower limits To turn the Fish I.D. feature on FishTrackTo turn on FishTrack Frequency Change Transducer Frequency X105C DF only Symbols with FishTrack depthsNoise Rejection To change the frequency setting to 50 kHzTo change the frequency setting to 200 kHz HyperScrollTo turn off displayed data To change displayed data font size Ping Speed & HyperScrollTo change Ping Speed Reset Options Reset Water DistanceTo turn off HyperScroll Set Keel Offset Automatic Sensitivity Sensitivity & Auto SensitivityTo adjust sensitivity in auto mode To adjust sensitivity in manual modeTo turn Auto Sensitivity back on Full Sonar Chart Sonar Color ModeSonar Page & Sonar Chart Display Options To change the chart mode color schemeDigital Data/Chart Split Zoom Sonar ChartCustomizing the Digital Data/Chart Screen FlashGraf Flasher Sonar SimulatorStop Chart To adjust the Surface Clarity levelSurface Clarity Zoom & Zoom Bar Upper and Lower LimitsZoom Pan Page Unit freezes, locks up, or operates erratically Unit wont turn onNoise No fish arches when the Fish I.D. feature is offPage Page Supplemental Material Index Page Page Page Lowrance Electronics Full ONE-YEAR Warranty Not toll-free How to Obtain Service…Accessory Ordering Information for all countries Visit our web site