Navman 8084 Radar Detector User Manual
Contents
1. 10 To clear the VRM EBL display press a and repeat steps 1 and 2 Then set Enable to L If you want to find the range and bearing between two other locations repeat the seguence using the other VRM EBL This is shown in a different pattern in the radar window 14 NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum Changing the PPI position You can move the PPI Plan Position Indicator centre to a different location if you are in Relative motion mode If you are in True motion mode the radar automatically positions the PPI centre To change the PPI position 1 From the radar window press ZE then select Position 2 There are three choices e Centre The PPI centre is in the centre of the radar window so that all other objects move relative to your boat Using the radar guard zones You can set one or two radar guard zones to notify you when a target enters or exits a specified area around your boat You can customize the size and shape of the radar guard zones and set up alarms 1 From the radar window press GZ then select Guard zone Turning a radar guard zone on or off Guard Zone Zone Enable u Alarm when Exit Adjust Alarm sensitivity 0 Two radar guard zones are available You can turn either or both on or off To turn a radar guard zone on or off 1 From the radar window press then selectGuard zone 2 Select Zone There are two choices e 1 selects radar guard zone 1 e 2selects radar2. 2 1 YA NAVMAN C J gt lt 0 46 11 8 mm Made in New Zealand MN000753B G Navman 8120 8084 Fuel AIS amp Radar Addendum
3. DST 0 53 nm be BRG 94 M A AIS Vessel B Dangerous Vessel C Projected Course D Data Box E RangeRings NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum When the cursor is placed over an AIS vessel for at least two seconds a data box appears at the bottom of the window with information about the AIS vessel For complete AIS information of the AIS vessel place the cursor over an AIS vessel for at least two seconds and press GE Press either GE or EE to clear the information Dangerous Vessels The 8120 8084 calculates the time of closest point of approach TCPA and closest point of approach CPA for each AIS vessel This is used to determine potential dangerous vessels If the TCPA and the CPA is below the trigger values then it will be considered dangerous A dangerous vessel is indicated on the chart by a red circle around the icon AIS Windows To go to the AIS windows press Gs select More select AIS then press amp or to select one of the two windows Vessels or Safety msgs rx If there are more items than will fit on the window press amp or amp to see the others 21 731 12810 es AST A GB ed Sihi EAA One Dre GOR hires Khm rii rti rmk GOR sre a arena 155 01 STORE AA CC Tessel ris SM SOLUIHAMPTOR HE 1707 emt ROT keen wan Th haard g A8 Casen WWW Hay clans Ty ETA Langit Ream 1448 TCPA 15 min LD E gt l l CPA 0 5
4. NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum 17 Heading line The heading line is a white line that extends from your boat to the edge of the radar window MI Show the heading line _ Hide the heading line Setup gt Radar gt Installation Note This option is shown only when the radar is enabled see Manual 18 3 1 Press Db twice to display the Setup menu then select Radar 2 Select Installation Installation Park position Zero bearing 0 0 ero range 0 0 m Antenna height 0 0 m Park position If your radar has an open array and you take it out of enabled mode the open array continues to rotate for a short distance before it finally stops The stop position is known as the park position You can adjust the angle of the parking position so that the open array will always stop at your preferred position for example facing the bow 1 SelectPark positionthen enterthe angle of the new park position Note You may need to try a few different park positions to find the correct one The strength of the wind will also affect the park position Zero bearing Use the zero bearing alignment to rotate the radar image one degree at a time so that a known object dead ahead is directly under the boat s heading marker This means that the radar image is aligned with the displayed chart and the compass An accurate bearing alignment is particularly important when the radar image is overlaid onto the chart
5. The radar overlay is also very useful in conditions of reduced visibility at night or in busy or hazardous waters e Standby The radar is on and is warmed up It is ready to start transmitting immediately Transmitting The radar is actively sending and receiving microwave radio pulses An open array will be rotating If you want to save on power but be able to start transmitting immediately use standby mode 3 The radar immediately turns on and enters warm up mode A message shows how long this will take 4 When the warm up period is complete the radar enters standby mode and is ready to transmit set the Transmit option to transmit mode or LI standby mode sure that you want to disable the radar functionality select Yes 4 The radar enters disabled mode immediately To turn the radar overlay on or off From the chart window press ED and set Radar Overlay option to 4 or Ll An extra menu item will them be displayed to control the radar and overlay Overlay Palette The color of the radar overlay can be changed to improve chart radar data 10 NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum separation or take into account viewing conditions 1 Press CD twice 2 Select Radar 3 SelectOverlay palette 4 Select your color preference Overlay Transparency The transparency of the radar overlay can be adjusted in case it obscures important chart features 1 From the chart screen or pane pr
6. distance to various targets You can also view the radar overlaid on the chart screen 506 Compass ring Range ring North line blue Heading line white A EA The bearing in Relative True or Magnetic mode L Echo Expansion setting M Interference Rejection setting Radar modes There are four radar modes e Disabled This saves on power consumption and magnetron usage If the radar is disabled it has to warm up and enter standby mode before it can start transmitting Warming The radar on and is warming up This can take up to 90 seconds depending on your scanner type Enabling the radar functionality When the radar is enabled it will turn on warm up and enter standby mode To enable the radar functionality 1 Press GK twice to display the Setup menu then select System 2 Set Radar to M Selecting standby mode or transmit mode You can quickly change between these two modes 1 From the radar window press GN and Disabling the radar functionality 1 Press ED twice to display the Setup menu then select System Set Radar to L 3 Awarning message appears If you are Radar Chart Overlay If you have a radar installed you can overlay the radar screen on your chart screen This is extremely useful because it can help you to e interpret the radar image by matching the radar targets with charted objects e quickly identify objects that are not on the chart such as other boats
7. manually the Gain Mode is changed to Manual To change the radar gain level 1 From the radar window press then selectAdjust Radar 2 SelectGain Level then use and to decrease or increase the setting Changing the sea clutter mode Manual mode Sea clutter usually appears as confusing random signals close to your boat on the radar window High waves that can reflect the radar signal will produce the maximum amount of sea clutter You can change the sea clutter mode yourself or have it changed automatically to compensate for the sea conditions To change the sea clutter mode 1 From the radar window press ZE then select Adjust Radar 2 Select Sea Clutter Mode There are three choices e Manual Adjust the sea clutter setting yourself e Harbour The sea clutter setting is adjusted automatically to suit a harbour environment Offshore The sea clutter setting is adjusted automatically to suit an offshore environment Changing the sea clutter level If the sea clutter level is set too low a lot of sea clutter will be displayed If the sea clutter level is set too high small targets may not be shown in the radar window If the sea clutter mode is set to Harbour or Offshore and you adjust the sea clutter level manually the sea clutter mode changes to Manual To change the sea clutter level 1 From the radar window press GK then select Adjust Radar 2 Select Sea Clutter Level then use Sand to
8. nm l l Y Vessels This is a sorted list of vessels currently being received by the AIS receiver The maximum number of vessels that the system will support is 250 Once maximum is reached vessels furthest away from the current location will be replaced A vessel will be removed from the list if no information is received within 6 minutes from the last message Displaying an AIS vessel on the chart 1 Press or amp to select a vessel 2 Press GN and select Display The Instrument switches to chart window with the selected vessel position in the middle Displaying Full AlS Details 1 Press or amp to select a vessel 2 Press and select More Info or press GE NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum 7 Displaying Full AlS Details 1 Press G or amp to select a vessel 2 Press and select More Info or press Q gt This window displays all information for the selected AIS vessel provided by the AIS receiver Sorting Vessels Press CH select Sort and select one of the options This sorts the list based on the chosen category Safety msgs rx Safety msgs rx are broadcasted messages received by the AlS receiver This window displays the date and time of message received MMSI of AIS vessel that broadcasted the message and the message itself Safety msgs rx list will store up to 10 messages The oldest message is replaced when the list is full Note This feature requires an AIS
9. off the same object Multiple echoes off the same object are most likely to occur when you are close to a large target and are usually only a temporary nuisance Radar shows random or grouped dots Rain clutter often appears as random dots that can merge into badly defined echoes on the radar window The random signals are returned from rain hail sleet or snow and can result in a confusing display Radar shows random signals in centre Sea clutter usually appears as confusing random signals around your boat High waves will produce the maximum amount of sea clutter You can optimize your radar window to reduce the effects of sea clutter NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum 19 Physical Dimensions NAVMAN 8120 15 1 383 5 mm 3 0 76 2 mm q N d 8120 Ei u e gt 0 d GOTO u e 3 E 3 A ms AN NAVMAN XK J m 1 0 45 11 4 mm NAVMAN 8084 11 2 285 mm 3 0 76 2 mm lt lt N j Bosu RN Ko z Y N lt 7 Sa u z 3
10. receiver There are multiple methods to filter AIS vessels that are displayed onto the charts Filter by type Filter by distance 556 km Filter by speed okn Show dangerous only U Dangerous vessel alarm we d min 0 2 km Of 0 Proximity radius Filter by Type Vessel types that are not selected will be filtered off the chart Default is set to all types enabled allowing all vessels to be displayed on the chart Filter by distance Vessels outside the radius selected from our current position are filtered off the chart Default value is set to 300 nm allowing all vessels to be displayed on the chart within that distance Filter by speed Vessels with speed below the value selected are filtered off the charts Default is set to 0 nm allowing all vessels to be displayed onto the chart Show Dangerous Only Show only vessels that have a TCPA CPA below the trigger values This filter will override any other filter option Dangerous Vessel Alarm When enabled an alarm will activate when both the TCPA and CPA are less than the trigger values Note Even when this setting is disabled the dangerous vessels will still be indicated on the chart TCPA Limit Set the Time of Closet Point of Approach limit CPA Limit Set the Closet Point of Approach limit Projected Course Show the estimated course of all vessels based on their current SOG and COG Range Rings Show a selectable number of range rings around the
11. zooming in on the charted area The charted area may be outside the maximum range of the radar The threshold or transparency settings for the radar overlay are not correct Radar shows arcs and or shadows Side lobe patterns often appear as an arc or a broken arc Shadows are blind spots If the radar is installed at a suitable height and in a suitable location on your boat side lobe patterns and shadows caused by obstructions such as funnels or masts will be minimized If you are having problems with these you may need to relocate your scanner Consult the Installation Guide for your radar model for advice Radar shows different patterns on each sweep Interference patterns always appear in a different place with each sweep They can be randomly scattered bright dots or dotted lines that extend from the centre to the edge of the radar window often producing a spiral effect Generally the stronger the interference the wider the interference lines Use the interference rejection feature to reduce interference patterns and the width of the interference lines Radar shows false echoes and or background noise False echoes and or background noise can be produced if the radar sensitivity is too high a Try using the Auto setting for the radar gain mode If this doesn t work or if the radar gain mode is already set to Auto use the radar gain setting to reduce the radar sensitivity Radar shows multiple echoes
12. Adjust this on a chart window with the radar overlay on 1 Select Zero bearing then use the arrow keys to enter the new bearing angle Zero range The zero range is also known as the radar range offset and as the trigger delay If your radar window shows a blank black circle around the centre or a solid circle of color at the centre you need to adjust the zero range setting until this circle disappears or almost disappears Ideally the radar sweep should start at your boat a radar range of zero To adjust the zero range setting 1 Position your boat about 45 to 90 m 50 to 100 yards away from and parallel to a straight walled jetty or similar feature 2 Adjust the gain setting if necessary so that a reasonably good image of the jetty echo is displayed on the radar window At this stage the jetty echo may appear to be bent 3 Select Zero range then use the arrow keys to adjust the zero range setting until the jetty echo appears as a straight line on the radar window Antenna height The Installation Manual for your NAVMAN radar explains how to find the optimum height for your radar scanner antenna Select Antenna height then enter the height of the antenna above sea level 18 NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum Radar problems Radar overlay doesn t appear on the chart screen a Ensure that your boat is shown on the radar window If it is but the radar overlay still isn t shown try
13. JAY MAN 8120 8084 Fuel AIS amp Radar Addendum 06 07 AN NAVMAN WWW Nnavemanh com AIS The AIS features on this chart plotter are designed as a safety aid only and do not guarantee safety at sea AIS transmission is mandatory on some but not all vessels AIS should be used to complement radar but AIS is not a substitute for radar e 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 pressing GER twice 8084 CD 8120 then select System Sonar L Disable any sonar transducer and disable sonar functions W A sonar transducer is fitted Enable sonar operation Radar LI No appropriate Radar system is fitted Disable RADAR W An appropriate Radar receiver is fitted Enable Radar Als LI No appropriate AIS receiver is fitted Disable AIS W An appropriate AIS receiver is fitted Enable AIS Appendix 8084 Size 190 mm 7 48 H x 285 mm 11 22 W x 76 8 mm 3 02 D Allow 3 mm clearance on each side for dust cover 8084 Display 213 4 mm 8 4 diagonal TFT color 800 x 600 pixels CPA Closest Point of Approach The closest distance two vessels will come to each other based on their current course and speed Radar guard zone An area around the boat set up by the operator and defined by distance and bearing If an object e g another boat enters the radar guard zone an alarm is activate
14. adings seem inaccurate and the other troubleshooting suggestions do not help Note e SmartCraft fuel sensors and NAVMAN diesel sensors are factory calibrated and should never need recalibrating e Ona multi engine boat calibrate each engine s sensor This can be done at the same time with a portable tank for each engine or at different times using one portable tank e Calibrating a sensor requires accurate measurement of the fuel consumption This is best done using a small portable tank At least 4 gallons 15 litres of fuel should be used to ensure an accurate calibration e Itis often very difficult to fill underfloor tanks to the same level twice due to air pockets so the more fuel used the more accurate the calibration NAVMAN 8120 8084 Fuel AIS amp Radar Addendum To calibrate the sensor s 1 2 Record the level of the fuel in the tank s Connect the portable tank s to the engine through the fuel sensor s Run the engine at normal cruising speed until at least 4 gallons 15 litres of fuel has been used per engine Check the actual amount of fuel used per engine by refilling the portable tank s to the original level and noting the reading s of the fuel dispenser s gauge Press GC twice select Fuel then select Setup engines On a single engine boat select Calibrate and change the displayed value to be equal to the reading of the fuel dispenser s gauge then press GH On a multi engine b
15. an also change the gain mode setting and the gain level setting to help reduce false echoes From the radar window press ZE then selectAdjust Radar and press GE Changing the gain mode Adjust radar Gain mode Auto Gain level Sea clutter mode Harbour rs Sea clutter level Rain clutter Threshold Chart threshold W 3 Use the radar gain mode to specify whether you want to adjust the radar gain yourself or have it adjusted automatically To change the radar gain mode 1 From the radar window press GK then select Adjust Radar 2 SelectGain Mode There are three choices e Manual Adjust the radar gain yourself to suit your local conditions and preferences e Auto The radar gain is adjusted automatically e Range rider Select this to adjust the radar gain yourself for a particular radar range then have these settings stored and automatically re used whenever you operate at that range again NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum 11 Changing the gain level Use the radar gain level to adjust the sensitivity of the radar receiver Ideally the radar gain level should be set so that background noise is just visible on the radar window If the radar gain level is too low weak echoes won t be shown If the radar gain level is too high strong echoes will be difficult to see amongst the large amount of background noise If the radar Gain Mode is set to Auto and you adjust the gain level
16. ard Zone 2 Select Zone then select 1 radar guard zone 1 or 2 radar guard zone 2 3 Select Alarm sensitivity then use D and E to decrease or increase the setting Note This option is shown only when the radar is enabled see Manual 18 3 1 Press twice to display the Setup menu then select Radar Radar Rotation Heading up Motion mode Relative rierence reject OF Palette Black Overlay palette Red small Digit size Range ring Compass North line Head ng l ne Rotation The current radar rotation is shown in the top left corner of the radar screen If COG data or heading data is not available from a compass the radar rotation is automatically set to Head up However you are strongly recommended to use a good quality product such asa NAVMAN HS02 HS03 or Autopilot to provide heading data If heading data is available from a compass the options are e North up works only when COG data or heading data from a heading sensor is available North is always at the top of the radar screen You can easily compare the radar screen to a chart in North up 16 NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum e Head up means that the radar image rotates underneath your boat so the direction in which you are heading is pointing to the top of the radar screen You can easily compare the visual view in front of your boat with the radar screen e Course up works only when COG da
17. boat The rings are drawn in multiples of the current chart scale Proximity Alarm When enabled an alarm will activate when any AIS vessel is within the proximity alarm radius 8 NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum Radar is the Radio Detection And Ranging system Radar functions require an optional NAVMAN radar system to be installed Three radar systems are available 2 kW 4 kW or 6 kW When the radar is operating the scanner transmits powerful microwave radio pulses which are reflected back from any solid objects such as land masses or other boats These objects are called targets and are shown on the radar window Radar window 114 t ha VV el Ge F 057 0 294 ren The radar window shows A Distance between each range ring in this example 1 8 nautical mile B Range of radar in this example shown in large digits C Radar rotation in this example North Up D Radar motion mode in this example Relative Mode E Cursor F Distance and bearing to the cursor from the vessel position NAVMAN 8120 8084 Fuel AIS amp Radar Addendum The scanner rotates through 360 so the radar window shows all of the area around your 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 the radar window with concentric range rings surrounding it The range rings help you to quickly estimate the
18. d Rain clutter Heavy rain or snow can cause interference with the radar image Range radar The distance between the centre of the radar image and the outer range ring The scale is shown in the top left corner of the radar window Range rings Concentric circles extending from your boat usually at the centre of the radar window and used to estimate distances to objects The scale is shown in the top left corner of the radar window Route Two or more waypoints linked in sequence to form a course for the boat Sea clutter Rough seas can cause interference with the radar image 2 NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum Fuel functions and display What the fuel computer does AN NINE e When you add or remove fuel from a tank tell the 8120 8084 e If the boat has petrol gasoline sensors calibrate them during installation or if the fuel To ensure the fuel data is accurate readings seem inaccurate e Choose an appropriate type of boat speed sensor or GPS source to calculate economy range and the fuel consumption curve e If the boat uses a paddlewheel sensor to measure speed calibrate it during installation or if the soeed readings seem inaccurate Low fuel alarm To set a low fuel alarm for a tank 1 Press CD twice select Fuel then select Setup tanks 2 Ona multi tank boat select the tank to set the alarm for 3 Select Tank alarmand enter a fuel level to trigger the low fuel alarm or enter
19. decrease or increase the setting Changing the rain clutter Rain clutter consists of random dots that can merge into badly defined echoes on your radar screen The random signals are returned from rain hail sleet or snow and can result in a confusing display If the rain clutter is set too low there will be excessive rain clutter displayed whenever it s raining If the rain clutter is set too high very large targets such as the coastline will appear to be hollow To change the rain clutter setting 1 From the radar window press GK then select Adjust Radar 2 SelectRain clutter then use Band E to decrease or increase the setting Changing the threshold level Use this to define the threshold level of the weakest echo that you want to show on the radar screen The threshold level is shown as a percentage 100 is the maximum threshold level meaning that only the strongest echoes are shown 0 is the minimum threshold level meaning that all echoes are shown To change the threshold level 1 From the radar window press GK then select Threshold then use Band to decrease or increase the setting 12 NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum Changing the echo expansion setting If you have several small targets in view and want to make them easier to see use the echo expansion option Note that the resolution decreases as the target size increases so use this option only when target detection and
20. erent pattern Finding range and bearing with a floating VRM EBL If you move the centre of a VRM away from your boat it is called a floating VRM Use this to measure the range and bearing between two locations on the radar window such as a headland and a buoy 1 From the radar window press GZ then select VRM EBL 2 Select VRM EBL then 1 VRM EBL 1 or 2 VRM EBL 1 3 Set Enable to to show the VRM and EBL on the radar window or L to hide them 4 SelectEBL reference if you want to change the EBL bearing reference There are two choices e R shows the EBL bearing relative to your boat s head e M T shows the EBL bearing relative to magnetic North or true North 5 Select Set centre to move the VRM and EBL centre away from your boat Use the arrow keys to move the centre so that it is aligned over the first location 6 Press GE to save the new centre position then press GK and reselect the VRM EBL 7 Select Adjust to adjust the VRM and the EBL so that you can align them with the second location Use and to decrease and increase the radius of the VRM until it touches the second location to measure the range Kand to move the EBL until it touches the second location to measure the bearing 8 The range and bearing of the target is shown at the bottom of the screen 9 If you want to hide or change the settings for the range rings North line and or heading line press ZE then select Radar
21. ess CB once Adjusting the quality of the radar window 2 Select Radar overlay If the box is unchecked press GB A Radar menu option appears below 3 Select Radar Select Transparency 5 Adjust the slider to suit Changes are seen on the chart in real time Also availableonthe Radar overlay menu are shortcuts to enable disable radar transmission Transmit see Manual 18 4 and to access the radar setup options Adjust radar see manual 18 6 Common problems that can degrade the quality of the radar window include e sea clutter e rain clutter e false echoes sometimes called ghost echoes and background noise e side lobe patterns false echoes that appear as an arc or a broken arc e shadows blind spots e multiple echoes off the same object e incorrect threshold setting If the radar is installed at a suitable height and in a Suitable location on your boat side lobe patterns and shadows blind spots caused by obstructions such as funnels or masts will be minimized If you are having problems with these you may need to relocate the scanner Consult the Installation Guide for your NAVMAN scanner or talk to your dealer or installer Multiple echoes off the same object are most likely to occur when you are close to a large target and are usually only a temporary nuisance You can adjust the radar to reduce the effects of sea clutter rain clutter and interference from other radars You c
22. for going to a destination because it through the water A GPS measures ground takes currents into account speed the boat speed over the bottom of the water Ifthere is a current then these speeds will be different and the log trip log economy and range will be different as shown below When the current is from ahead ground speed is less than water speed Water speed 10 knots Water speed 10 knots o o gt gt m Current 4 knots ks WW Ba Gives a ground speed of 6 knots Gives a ground speed of about 8 knots Current 4 knots at 45 For this example If the boat travels for one hour uses 3 gallons of fuel per hour and has 50 gallons of fuel left Speed Log Economy Range Using water speed 10knots 10nm 3 3nm gal 165nm Using ground speed 6 knots 6 nm 2 0nm gal 100 nm When the current is from behind ground speed is more than water speed Water speed 10 knots Current 4 Current knots at 45 Water speed 10 knots gt 4 knots ln E gt _ gt Gives a ground speed of 14 knots For this example Gives a ground speed of about 13 knots If the boat travels for one hour uses 3 gallons of fuel and has 50 gallons of fuel left Speed Log Economy Range Using water speed 10knots 10nm 3 3nm gal 165nm Using ground speed 14knots 14nm 4 7nm gal 235 nm 4 NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum Calibration Calibrate petrol gasoline fuel flow sensors during installation or if the fuel re
23. guard zone 2 e Look Ahead The PPI centre is positioned so that the radar window is offset from the centre to give you the maximum view ahead Set Offset the PPI centre in the radar window This works only when you are using relative motion RM mode Use the arrow keys to move the PPI centre to the new position then press GA to confirm The new position must allow most of the radar sweep to appear on the radar window if it doesn t the PPI centre will be moved as close as possible to the desired position Displaying the area covered by a radar guard zone 1 From the radar window press GK then selectGuard Zone 2 Select Zonethenradar guard zone lorradar guard zone 2 3 Set Enable to M show the radar guard zone or L hide the radar guard zone Change the setting for a radar guard zone alarm When a radar guard zone is on the guard zone alarm is set automatically but you can change the setting to suit your preferences 1 From the radar window press GK then selectGuard Zone 2 Select Zonethenradar guard zone lorradar guard zone 2 3 Select Alarm preference There are three choices Enter sounds the alarm only when a target enters the radar guard zone e Exit sounds the alarm only when a target leaves the radar guard zone e Both sounds the alarm when a target enters or leaves the radar guard zone NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum 15 Adjusting the boundaries of a radar guard zone To adjust t
24. he boundaries and change the area that is covered by a radar guard zone 1 From the radar window press ZE then select Guard Zone 2 Select Zone then 1 radar guard zone 1 or 2 radar guard zone 2 3 Select Adjust to display the current boundaries of that radar guard zone The following information is also shown in the top left corner e Guard Zone The number shows the radar guard zone that is selected e Sector or Circular The shape of the radar guard zone e INR The distance between the inner boundary and your boat e OUR The distance between the outer boundary and your boat e WDT The angular width of the radar guard zone in degrees e BRG The bearing of a line drawn from your boat through the centre of the radar guard zone in degrees Radar setup 4 Use amp and 8 to select the parameter to change 5 Then use Band amp to change the parameter Adjusting the sensitivity of the alarm You can set the sensitivity of the alarm for the radar guard zones to define the size of the target that will trigger the alarm The size of target is shown as a percentage 100 is maximum sensitivity meaning that very small targets will trigger the guard zone alarm 0 is minimum sensitivity meaning that only very large targets will trigger the alarm The same sensitivity setting is applied to both of the radar guard zones if both are turned on To set the alarm 1 From the radar window press then selectGu
25. ine extending from the centre of the VRM to the edge of the radar window Use the EBL to find the bearing of the target 1 From the radar window press GK then select VRM EBL VRM EBL Reset centre NAVMAN 8120 8084 Fuel AIS 8 Radar Addendum 13 Finding range and bearing with a fixed VRM EBL 1 From the radar window press ZE then select VRM EBL 2 Select VRM EBL then 1 VRM EBL 1 or 2 VRM EBL 2 3 Set Enable to RI to show the VRM and EBL on the radar window or L to hide them 4 Select EBL reference if you want to change the EBL bearing reference There are two choices e R shows the EBL bearing relative to your boat s head e M T shows the EBL bearing relative to magnetic North or true North 5 Select Adjust to adjust the VRM and the EBL so that you can align them with the target Use and to decrease and increase the radius of the VRM until it touches the target to measure the range and to move the EBL until it touches the target to measure the bearing 6 Therange and bearing of the target is shown at the bottom of the screen 7 Ifyou want to hide or change the settings for the range rings North line and or heading line press CS then select Radar 8 To clear the VRM EBL display press GE and repeat steps 1 and 2 Then set Enable to L If you want to find the range and bearing of another target repeat the sequence using the other VRM EBL This is shown in a diff
26. n producing a spiral pattern Generally the stronger the interference the wider the interference lines Use the interference rejection option to reduce both the interference patterns and the width of the interference lines There are four choices e Off Interference rejection is off e Low operates the interference rejection at minimum strength e Medium operates the interference rejection at medium strength e High operates the interference rejection at maximum strength This setting can make it more difficult to detect some targets and radar beacons Use this setting only when necessary Palette Select the color scheme for the radar window Digit size The range of the radar is shown on the radar window for example 1 16 You can show this information in small medium or large digits Range ring The range rings help you to quickly estimate the range of a target from your boat MI The range rings are shown The number of range rings and the spacing interval between them is set automatically according to the range setting The current spacing interval is shown in the top left corner of the radar window Compass The compass ring is displayed North line Whatever the radar windorotation you can always show the blue North line If the bearing mode is set to e magnetic the North line always points to magnetic North e true the North line always points to true North Show the North line _ Hide the North line
27. oat select the engine Select Calibrate and change the displayed value to be equal to the reading of the fuel dispenser s gauge then press aD Repeat for the other engines AIS is short for Automatic Identification System The International Convention for Safety of Life At Sea SOLAS requires all vessels greater than 300 tons and all passenger vessels to be equipped with AIS Transponders All vessels equipped with AIS permanently broadcast via one or more of the two dedicated VHF channels This transmission may include information about the vessels MMSI number its call sign name position course heading speed rate of turn and type of vessel This unit can receive and display AIS information when connected to an AIS receiver Available AIS vessels transmitting in Viewing AIS Vessels A typical AIS window shows the local area are shown on the chart when this feature is enabled The following AIS receivers are supported by this unit e Comar SLR200 external GPS e Weatherdock Two Channel AIS Receiver EASY AIS Part No 5 A 013 external GPS e NASA Marine AIS Engine 2 channel MultiPlex Receiver external GPS Other AIS receivers may work but have not been tested with this unit To enable AIS from the system menu check the AIS box E Je Fi Ka EE WE Soe sre Okn COG 195 M CPA 0 32 nm e _TCPA 00h01m31s Wi
28. ta or heading data from a heading sensor is available and there is an active route It means that your desired heading is always pointing to the top of the radar screen so that you can compare the leg bearing of the active route with the radar screen If you re in Course up rotation but don t have an active route the radar uses Head up rotation until a route is made active Motion mode True motion mode is not available if there is no position data and no heading or COG data However you are strongly recommended to use a good quality product such as a NAVMAN HSO2 HSO3 or Autopilot to provide heading data There are two choices e Relative RM Your boat remains in a fixed location on the radar screen and all other objects move relative to your position You can choose the position of the fixed location see Section 18 10 RM is the default True TM Your boat and moving targets move across the radar screen as you travel All stationary objects remain in a fixed position You must have position data and heading or COG data for this option to be available Interference filter If the radar on another boat is operating at the same frequency as your radar it can cause interference patterns on the radar window Interference patterns always appear ina different place with each sweep They can be randomly scattered bright dots or dotted lines that extend from the centre to the edge of the radar window ofte
29. visibility is more important that the quality of the display Turning the target trails on or off If you turn the target trails on each target leaves a 30 second trail on the radar screen You cannot change the length of the target trail If you turn the target trails off the targets do not leave trails Note that if the radar motion mode is set to true stationary targets won t leave a trail If the radar motion mode is relative any Using the VRM EBL Use one or both of the VRM EBL Variable Range Markers Electronic Bearing Lines to quickly find the precise range and bearing of a target A VRM can be fixed or floating Use the VRM to find the range distance to the target e A fixed VRM is shown as a thin dashed circle centred around your boat Use this to find the distance of a target from your boat e You can move the centre of the VRM away from your boat for example to measure the distance between two islands This is called a floating VRM To change the echo expansion setting From the radar window press Ch then select Echo Expansion There are three choices e Off No echo expansion e 1 Targets expanded x 2 e 2 Targets expanded x 3 target that is moving relative to your boat will leave a trail To change the target trails setting From the radar window press Zi then setthe Target trails option to M target trails are on or target trails are off The EBL is shown as a thin dashed l
30. zero to disable the alarm Boat speed sensors Selecting a boat speed sensor The fuel calculations can use boat speeds from the GPS or from a paddlewheel sensor or pitot sensor if these optional sensors are installed e Paddlewheel and pitot sensors measure the speed through the water GPS speed is speed over ground these sensors can give different values for Range Economy and the fuel consumption curves A pitot sensor is more accurate than a paddlewheel sensor at high speeds but is not accurate at low speeds A paddlewheel sensor is more accurate than a pitot sensor at low speeds NAVMAN 8120 8084 Fuel AIS amp Radar Addendum When a low fuel alarm is set the alarm s fuel level is shown on the fuel display tank levels as ared bar The alarm can also be set using the Alarms setup menu To select an optional speed sensor 1 Press GP twice select Fuel then select Speed source 2 Touseapaddlewheel or pitot sensor select Water speed otherwise select Ground speedto use GPS speed 3 Ifyou selected Water speed and you have both a paddlewheel sensor and a pitot sensor i Press EM select SnartCraft and select Speed type ii Select Paddlewheel or Pitot 2 Tip You can select a different speed sensor during a trip Water speed and ground speed Water speed is better for measuring the A paddlewheel sensor and a pitot sensor boat s potential performance Ground speed measure water speed the boat speed is better
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