Furuno LS-6100 manual Suppressing Interference, Suppressing Low Level Noise, Clutter appearance

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1.Press the [MENU/ESC] key to open the menu.

2.Press ▲ or ▼ to choose A-SCOPE from page 1 of the menu.

3.Press ► to show the options window.

4.Press ▲ or ▼ to choose the A-scope presentation type desired.

Normal: Display shows echoes at each transmission with amplitudes and tone proportional to their intensities

Peak: Peak-hold amplitude picture.

5.Press the [MENU/ESC] key to close the menu.

6.To turn off the A-scope display, choose Off at step 4 and then press the [MENU/ESC] key.

1.11Suppressing Interference

Interference from other acoustic equipment operating nearby or other electronic equipment on your boat may show itself on the display as shown in the figure below. To suppress interference, do the following:

1.Press the [MENU/ESC] key to open the menu.

2.Use ▲ or ▼ to choose NOISE LIMIT from page 1 of the menu.

3.Press ► to show the options window.

4.Use ▲ or ▼ to choose the degree of suppression desired; Off, Low, Medium, or High (highest).

5.Press the [MENU/ESC] key to close the menu.

Turn the noise limiter off when no interference exists, otherwise weak echoes may be missed.

1.12Suppressing Low Level Noise

Low intensity “speckles” may appear over most of screen. This is mainly due to sediment in the water or noise. These can be suppressed by adjusting CLUTTER on the menu. When the automatic mode is on, clutter is automatically rejected. To suppress low level noise in manual sounder operation, do the following:

1.Press the [MENU/ESC] key to open the menu.

2.Use ▲ or ▼ to choose CLUTTER from page 1 of the menu.

3.Press ► to show the options window.

4.Use ▲ or ▼ to choose the degree of suppression desired; 1, 2, 3 ,4, 5 or 6. The higher the number the greater the suppression.

5.Press the [MENU/ESC] key to close the menu.

6.To turn off low-level noise suppression, choose Off at step 4 and then press the [MENU/ESC] key.

Clutter appearance

Interference from	Electrical interference
other sounder

Forms of interference

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Contents Echo Sounder 00080926502 Table of Contents Use the proper gain setting Do not open the equipmentDo not disassemble or modify the equipment Use the proper fuseSafety Instructions for the Installer Use the specified power cableFeatures ForewordWord to LS-6100 Owners IiiSystem configuration Equipment lists System OverviewStandard supply Name Type Code No Qty Remarks Optional equipment Name Type Code No Qty RemarksTurning the Power On/Off How to remove the hard coverOperation Control DescriptionAdjusting Display Contrast, Brilliance Brilliance/contrast adjustment windowMode selection window Choosing a Display, FrequencyDual frequency display Single frequency displayMarker-zoom display Bottom-zoom display Bottom-lock displayNav data displays Bottom-zoom displayMenu Operating Procedure Automatic OperationHow automatic operation works Choosing automatic operationChoosing the manual mode Manual OperationRange offset Gain offsetAdjusting the gain Choosing Picture Advance SpeedUnit Basic Range Shifting the rangeMeasuring Depth Scope DisplaySuppressing Interference Suppressing Low Level NoiseClutter appearance Forms of interferenceErasing Weak Echoes White LineWaypoints 49.6Setting destination waypoint Registering waypoint from the waypoint listUsing the Prog key Prog KeyEditing waypoints Erasing waypointsAlarms Alarm descriptionActivating an alarm Picture Color HueDepth, temperature, speed setting window Alarm menuAlarm options Fish level optionsSetting the Draft Resetting Trip DistanceHow the alarm works Gain CompensationNAV Data Setup window Setting Up Nav Data DisplaysNav data window and item displayable 130 00.574E 30 00.065NNav data displays System & Installation Menus Water temperature display wide, FSystem Menu System menusNav window water temperature and speed Installation Menu Installation menuBottom level display Clear memory displayWaas options window MAINTENANCE, Troubleshooting Troubleshooting DiagnosticsTroubleshooting table If… Then check …Test Pattern Test patternsDisplay Unit InstallationThru-hull Mount Transducer Thru-hull mount transducer mounting Dimensions millimeters Typical thru-hull mount transducer installationsAcceptable transducer mounting locations Suitable transducer mounting locationsConstruction of fairing block Transom Mount TransducerTransom mount transducer Mounting locations Tape Transom mount transducerInside-hull Transducer Pre-test for speed and temperature Optional TriducerFinal preparation Tools and materials neededInstallation of bracket Height required at mounting locationMounting location on single drive boat Positioning the templateAdjusting 10 11 transom angle TransomAngle Shim with Taper down Taper up Parallel Transom angleAttaching the sensor to the bracket Attaching the sensor to the bracketCable routing Optional Water Temperature/Speed Sensor WiringWater temperature/speed sensor Establishing the groundOptional equipment Pin arrangement on Nmea portWater temp/speed sensor Connection of converterWind sensor IEC 61162-1 Data SentencesFeeding data to RD-30 via the LS-6100 Specifications of the Echo Sounder LS-6100 Page