Navman 8120 Radar Detector User Manual

User manual for the device Navman 8120 Radar Detector

Navman 8120 Radar Detector User Manual

Extracts of contents

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Navman8120/8084Fuel, AIS, & RadarAddendum 06/07w w w . n a v m a n . c o m

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WarningAIS: The AIS features on this chart-plotter are designed as a safety aid only and do notguarantee safety at sea. AIS transmission is mandatory on some, but not all, vessels. AISshould be used to complement radar, but AIS is not a substitute for radar.Notes• AIS and Radar functions require optional accessories to be installed.• Radar is available in 2 kW, 4 kW, 6 kW units.• The setup menu can be opened by pressingtwice (8084) /(8120) then select System:SonarDisable any sonar transduc

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Fuel functions and displayWhat the fuel computer does!CAUTION!WARNINGTo ensure the fuel data is accurate:DANGERWhen you add or remove fuel from a tank, tell the 8120/8084.If the boat has petrol/gasoline sensors, calibrate them during installation or if the fuelCAUTIONreadings seem inaccurate.Choose an appropriate type of boat speed sensor or GPS source to calculate economy,range and the fuel consumption curve.If the boat uses a paddlewheel sensor to measure speed, calibrate it during installatio

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Water speed and ground speedA paddlewheel sensor and a pitot sensormeasure water speed, the boat speedthrough the water. A GPS measures groundspeed, the boat speed over the bottom ofthe water. If there is a current, then thesespeeds will be different, and the log, triplog, economy and range will be different, asshown below.Water speed is better for measuring theboat’s potential performance, Ground speedis better for going to a destination because ittakes currents into account.When the current

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CalibrationCalibrate petrol/gasoline fuel flowsensors during installation, or if the fuelreadings seem inaccurate and the othertroubleshooting suggestions do not help.NoteSmartCraft fuel sensors and NAVMANdiesel sensors are factory calibrated andshould never need recalibrating.On a multi engine boat, calibrate eachengine’s sensor. This can be done at thesame time with a portable tank for eachengine or at different times using oneportable tank.Calibrating a sensor requires accuratemeasurement o

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AISAIS is short for Automatic IdentificationSystem. The International Conventionfor Safety of Life At Sea (SOLAS) requiresall vessels greater than 300 tons and allpassenger vessels to be equipped with AISTransponders. All vessels equipped withAIS permanently broadcast via one or moreof the two dedicated VHF channels. Thistransmission may include information aboutthe vessels MMSI-number, its call sign, name,position, course, heading, speed, rate of turnand type of vessel.This unit can receive and

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When the cursor is placed over an AISvessel for at least two seconds, a data boxappears at the bottom of the window withinformation about the AIS vessel.For complete AIS information of the AISvessel place the cursor over an AIS vessel forat least two seconds and press.Press eitherorto clear theinformation.Dangerous VesselsThe 8120/8084 calculates the time of closestpoint of approach (TCPA) and closest point ofapproach (CPA) for each AIS vessel.This is used to determine potential dangerousvessels

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Displaying Full AIS DetailsFilter by Type1 Press or to select a vessel.2 Pressand select More Info orpress.This window displays all information forthe selected AIS vessel provided by the AISreceiver.Sorting VesselsPress, select Sort and select one ofthe options.This sorts the list based on the chosencategory.Safety msgs (rx)Safety msgs (rx) are broadcasted messagesreceived by the AIS receiver. This windowdisplays the date and time of messagereceived, MMSI of AIS vessel that broadcastedthe messag

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RadarThe scanner rotates through 360° so theradar window shows all of the area aroundyour boat within the range of the scanner,producing a map-like display called the PPI(Plan Position Indicator).Typically, your boat is in the centre of theradar window with concentric range ringssurrounding it. The range rings help youto quickly estimate the distance to varioustargets.You can also view the radar overlaid on thechart screen.Radar is the Radio Detection And Rangingsystem. Radar functions require

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Radar modesThere are four radar modes:• Disabled. This saves on powerconsumption and magnetron usage. If theradar is disabled, it has to warm up andenter standby mode before it can starttransmitting.• Warming. The radar on and is warming up.This can take up to 90 seconds, dependingon your scanner type.• Standby. The radar is on and is warmedup. It is ready to start transmittingimmediately.• Transmitting. The radar is actively sendingand receiving microwave radio pulses. Anopen array will

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separation or take into account viewingconditions.1 Press MENU twice.2 Select Radar.3 Select Overlay palette.4 Select your color preference.Overlay TransparencyThe transparency of the radar overlay can beadjusted, in case it obscures important chartfeatures.1 From the chart screen or pane, press MENUonce.2 Select Radar overlay. If the box isunchecked, press ENTER . A Radar menuoption appears below.3 Select Radar.4 Select Transparency.5 Adjust the slider to suit. Changes are seenon the chart in r

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Changing the gain levelChanging the sea clutter levelUse the radar gain level to adjust the sensitivityof the radar receiver. Ideally, the radar gainlevel should be set so that background noise isjust visible on the radar window.If the radar gain level is too low, weak echoeswon’t be shown. If the radar gain level is toohigh, strong echoes will be difficult to seeamongst the large amount of backgroundnoise.(If the radar Gain Mode is set to Auto and youadjust the gain level manually, the Gain M

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Changing the echo expansion settingIf you have several small targets in viewand want to make them easier to see, usethe echo expansion option. Note that theresolution decreases as the target sizeincreases, so use this option only when targetdetection and visibility is more importantthat the quality of the display.To change the echo expansion setting:From the radar window, pressthenselect Echo Expansion. There arethree choices:• Off. No echo expansion.• 1. Targets expanded x 2.• 2. Targets

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Finding range and bearing with a fixedVRM/EBL1 From the radar window, pressthenselect VRM/EBL.2 Select VRM/EBL then 1 (VRM/EBL 1) or 2(VRM/EBL 2).3 Set Enable to to show the VRM and EBLon the radar window (or to hide them).4 Select EBL reference if you want to changethe EBL bearing reference. There are twochoices:• °R shows the EBL bearing relative toyour boat’s head.• °M/°T shows the EBL bearing relative tomagnetic North or true North.5 Select Adjust to adjust the VRM and theEBL so tha

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Changing the PPI positionYou can move the PPI (Plan Position Indicator)centre to a different location if you are inRelative motion mode. (If you are in Truemotion mode, the radar automaticallypositions the PPI centre.)To change the PPI position:1 From the radar window, pressthenselect Position.2 There are three choices:• Centre. The PPI centre is in the centreof the radar window so that all otherobjects move relative to your boat.• Look Ahead. The PPI centre ispositioned so that the radar wi

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Adjusting the boundaries of a radar guardzoneTo adjust the boundaries and change the areathat is covered by a radar guard zone:1 From the radar window, pressthenselect Guard Zone.2 Select Zone then 1 (radar guard zone 1)or 2 (radar guard zone 2).3 Select Adjust to display the currentboundaries of that radar guard zone. Thefollowing information is also shown in thetop left corner:• Guard Zone: The number shows theradar guard zone that is selected.• Sector or Circular: The shape of theradar gu

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• Head up means that the radar imagerotates underneath your boat, so thedirection in which you are heading ispointing to the top of the radar screen.You can easily compare the visual view infront of your boat with the radar screen.• Course up works only when COG data orheading data from a heading sensor isavailable and there is an active route. Itmeans that your desired heading is alwayspointing to the top of the radar screenso that you can compare the leg bearingof the active route with the

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Heading lineThe heading line is a white line that extendsfrom your boat to the edge of the radarwindow.Show the heading line.Hide the heading line.Setup > Radar > InstallationNote: This option is shown only when theradar is enabled (see Manual, 18-3)1 Presstwice to display the Setupmenu, then select Radar.2 Select Installation:Park positionIf your radar has an open array and youtake it out of enabled mode, the open arraycontinues to rotate for a short distance beforeit finally stops. The stop po

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Radar problemsRadar overlay doesn’t appear on the chartscreena Ensure that your boat is shown on theradar window. If it is, but the radar overlaystill isn’t shown, try zooming in on thecharted area. (The charted area may beoutside the maximum range of the radar).b The threshold or transparency settings forthe radar overlay are not correct.Radar shows arcs and/or shadowsSide lobe patterns often appear as an arcor a broken arc. Shadows are blind spots.If the radar is installed at a suitable he

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Physical DimensionsNAVMAN 8120NAVMAN 8084

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