Furuno 841 MARK-2 manual

Contents Marine Radar B . N o . O M E 3 4 4 4 Safety Instructions Do not open the equipment Stay away from transmitting antennaDo not disassemble or modify the equipment Do not operate the equipment with wet handsIii Use the correct fuseTable of Contents Features ForewordSpecifications Antenna UnitTransceiver Module contained in radome Display UnitInterface Nmea Installation Materials CP03-15xx Accessories FP03-05900Equipment List Complete SetOptional Equipment Configuration Model 841 MARK-2Principle of Operation How radar works Operation Control DescriptionDisplay Indications and Markers Turning the Radar On and Off5NM 675NM 220.9R 0.646NM 308.7RAdjusting LCD Backlighting and Display Tone Adjusting Control Panel BrillianceTransmitting Selecting the RangeGeneral procedure Adjusting GAIN, STC, A/C Rain and FTCSTC MAN Auto Tuning the Receiver Adjusting A/C RainAdjusting FTC How to tune manuallyMeasuring the Range Measuring the BearingPress the Menu key to open the menu. The main menu appears Menu OperationSee the table on the next Menu description Menu FunctionSelecting the Display Mode 11 Display modesSelecting the Presentation Mode Window DisplayCourse-up, you may select CU or WPT- UP, on the menu CU course-upGuard Alarm Setting the guard zoneSilencing the audible alarm WPT-UP waypoint-upCanceling the guard zone Suppressing Radar InterferenceOff Centering the Display Suppressing Noise InterferenceSelecting Pulselength Echo Trails Navigation Data DisplaySetting up the nav data display Echo Stretch magnifying long range echoesPress the Menu key Select Nav Data and press the ENT key Turning echo stretch on or offSelecting Unit of Measurement for Range Selecting Bearing ReferenceWatchman Turning on watchmanCanceling watchman Erasing the Heading MarkerDeselecting Ranges Displaying Navigation Data During Stand-byVisual Alarm Indications Error Visual alarmOutputting Cursor Position to Navigator Displaying Cursor Position, Range and Bearing to CursorInterpreting the Display Radar Wave and Radar HorizonTarget Properties and Radar Wave Reflection Super-refractionBearing Resolution Range ResolutionFalse Echoes Multiple echoesSide-lobe echoes Indirect echoesNautical Chart and Radar Picture Maintenance & Troubleshooting Safety InformationReplacing the Fuse Preventative MaintenancePeriod Check point Remarks Troubleshooting But ThenSelf Test Self TestSiting, handling considerations Antenna Unit InstallationMounting Holes for antenna unit Parallel with the fore and aft lineDisplay Unit Installation Mounting considerationsMounting procedure Display unit is designed to be mounted on a tabletopSignal cable connection ConnectionsTo connect external equipment to the OP- Tion connector For E/SNavigation aid, video sounder connection Heading Sensor ConnectionInstallation Check List RadarDisplaying the Installation Menus Initial Adjustment of PictureFollow the procedure below to obtain proper radar picture Relative Bearing Alignment Entering Initial Settings Sweep Timing Closing the Installation Menus Press the Menu key and turn off the powerPage Page Page Page Page Page