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Reference section 1 — Using the Chart Screen

Rotating the chart

Reference Manual Revision B

In browse mode, you can use the cursor to
look at other areas of the chart, and desig-
nate points you want to navigate to.

The info bar at the bottom of the screen
displays the position coordinates of the
cursor, and the distance and bearing from
your vessel to the cursor.

Rotating the chart

Press the

Rotate

key to change the angle of

the charts displayed on the

Chart

screen. As

long as you’re in vessel mode, you can
rotate the chart to any of the following
angles:

•

North-up – No rotation.

•

Course-up – As your vessel changes its
direction of travel, the chart rotates to
keep your COG straight up on the
screen. Course-up represents your true

COG as determined by the GPS
receiver.

The 972 ignores any course changes if your
speed is under half a knot.

The chart reacts very slowly to turns of less
than 5°, to avoid annoying small rotations.

Your COG is often different from your
vessel’s heading, so what you see straight

Browse mode

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Содержание 972

Страница 1: ...Northstar 972 Quickstart Guide and Reference Manual Revision B ...

Страница 2: ...abling in areas exposed to interference from any radar The processor should be mounted as far as possible below any source of radar interference Flybridge installations of the processor are not recommended and should be avoided Installations in these areas require special provisions for shielding and the installation design must provide total protection from any moisture Problems caused by moistur...

Страница 3: ...23 The STAR key alarms TideTrack and setup 24 SAVE and Man Overboard MOB 25 Reference Sections 1 Using the Chart Screen 27 Using electronic charts 28 Zooming in and out 28 Using the cursor on the chart screen 29 Comparing vessel and browse modes 29 Rotating the chart 31 Setting up the chart screen 33 Using the course predictor line 38 Using the distance and bearing calculator 38 2 3D maps 41 Intro...

Страница 4: ...Markers keys 94 Radar cursor 96 MARPA targets 96 7 Echo sounding 101 Welcome to the Northstar Echo Sounder 103 Displaying the echo sounder s picture 106 Using automatic mode 107 Changing the frequency of echoes 108 Zooming in and out 109 Echo Sounder setup 112 The picture menu 114 Changing the depth settings 116 Using the MORE key 117 Setting the ECHO screen data 119 Viewing past echoes using Soun...

Страница 5: ...972 2 Using this manual 2 Maintaining the 972 4 Interfacing the 972 4 Technical support 5 Electronic Charts and the 972 6 Purchasing charts 7 This chapter introduces this manual and explains a few things you should know to keep your Northstar 972 in top operating condition ...

Страница 6: ...M972IM or contact your local authorized Northstar dealer Using this manual This manual is divided into two main sections The Quickstart Guide begins on page 9 and has all the basic information you need to operate the 972 Be sure to read this section as you start using the unit A Reference Section starts on page 27 Use this when you need more information about any of the unit s functions you ll fin...

Страница 7: ...rking the 972 Northstar s networking technology lets you connect two or more 972 units in order to share navigation data including radar and sounder data and all waypoints and routes between the units The system can be operated from any connected unit and all changes to routes and waypoints are reflected on all the networked units Networking is fully automatic on the 972 no special steps are neces...

Страница 8: ...side always keep the rear connectors plastic caps on when they are not in use the connectors are not waterproof unless covered Cleaning the display screen Be careful when cleaning the glass window covering the display screen Although the window is scratch resistant you may damage the anti reflective coating if you use a dry cloth to wipe dirt off Always use a damp cloth with plenty of water to rem...

Страница 9: ...ual is a valuable resource for all 972 users Send your ques tions comments or suggestions about this manual to manuals bntmarine com Service and repair In case of a 972 operating problem check all interconnecting cables and fuses If you continue to have problems contact your dealer or the factory for additional assis tance If required you can return the 972 to the factory for diagnosis and repair ...

Страница 10: ... charts are issued by the local government The scans like digital photos are a matrix of dots The challenge in raster charts the earth is round 3D and the chart is flat 2D is to be able to determine the precise latitude and longitude of each dot at any zoom level One of the biggest benefits of raster charts is their appearance it is identical to the paper charts It s like having the paper chart on...

Страница 11: ...is disadvantage is disappearing See page 28 for more on charts in the 972 Purchasing charts Purchasing charts for your 972 is quick and easy because all available charts are already stored on a hard disk drive in its processor module There s no waiting for delivery or visits to dealers you only need to purchase a chart permit to use them To purchase additional charts 1 Press the STAR key several t...

Страница 12: ...8 Getting Started Purchasing charts Northstar 972 ...

Страница 13: ...ing immediately to a quick waypoint 21 Radar 22 The echo sounder 23 Split function 23 The STAR key alarms TideTrack and setup 24 SAVE and Man Overboard MOB 25 This section gives an overview of each of the 972 major functions and the basic informa tion you need to begin using them We suggest you read this section carefully as you first use the 972 and then refer to the following Reference Sections ...

Страница 14: ...10 Northstar 972 Function Keys Power Key Soft Keys STAR Key SPLIT PWR 3D CHART STEER RADAR VIDEO POSITION SOUNDER IN OUT BRT DIM WAYPTS ROUTES SAVE MOB Figure 1 972 controls ...

Страница 15: ...he PWR key until the screen goes dark Allow up to 30 seconds for the black box to power down Introducing the display screen Adjusting the brightness To adjust the screen s brightness press the BRT or DIM key If the 972 becomes too hot due to high ambient temperature and strong sunlight the display screen may automatically dim to prevent overheating You can tempo rarily override the auto dim functi...

Страница 16: ...lways asks you to verify what you re doing before it changes or deletes information You ll be asked to confirm your action before anything happens that may affect the 972 s opera tion You can always press CLEAR to cancel a function if you change your mind Function keys Figure 1 on page 10 illustrates the loca tions of the 972 s controls The seven keys below the screen access the unit s major funct...

Страница 17: ...ssing the STAR key several times to display the Options Service Info screen This is where you set options for system settings such as Service Options Port Setup Software Update etc Function options Begin on the screen whose options you want to change Then press and hold that function key for about a second A screen showing the options for that function will be displayed Use the cursor pad to selec...

Страница 18: ...quence press the CHART function key to acknowledge the warning message and display the Chart screen You ll see your present position repre sented by a red vessel symbol in the center of the chart If you re not receiving GPS signals you can use Demo Mode as described on page 19 World Folio out of date warnings When the world folio on your system reaches 13 months old you will see a warning remindin...

Страница 19: ...15 Displaying the chart screen Quickstart Guide Revision B Chart screen ...

Страница 20: ...is shown in the Recent Alarms box This message advises you that the 972 is still in the process of acquiring satellite information necessary for displaying a position fix The word NEW in the upper right corner of the screen tells you this message hasn t yet been acknowledged To acknowledge this or any message alarm press the Clear alarm menu key As soon as the 972 acquires its signals you ll be re...

Страница 21: ...play any available overlays such as radar rotate the chart to north up course up leg up or heading up heading up requires an optional heading sensor return from Browse mode cursor on screen to Vessel mode vessel centered show detailed information about the displayed chart display additional position information in the Info bar at the bottom of the screen go to a waypoint nav aid or unmarked point ...

Страница 22: ...to the 3D image this operation may take quite a bit of time the first time a chart is accessed Browse allows the viewpoint to be moved by using the cursor pad Bottom Lock Locks the camera to the seabed directly under the vessel instead of the vessel itself Camera up in Browse mode moves the camera viewpoint higher Camera down in Browse mode moves the camera viewpoint lower More info steps through ...

Страница 23: ...art Zoom out if you need to see more area Press Demo Position and then ENTER Your vessel symbol will now be stationary at this position To simulate motion from this point to another location press the cursor pad to move the cursor to the destination then press the Demo COG SOG key To change the vessel s speed from the standard 10 knots use the keypad to enter the new speed Finally press ENTER to s...

Страница 24: ...you ve enabled loran tide and current information at the nearest tide station Displaying numeric data on the position screen To display your position speed course and time with large easily read digits press POSITION The GPS Position screen shows the following information your vessel s position in lat lon or Phantom loran TDs if enabled your vessel s present SOG and COG current time day and date g...

Страница 25: ...ation as it is called is often the easiest way to go to a waypoint or a series of waypoints Just select the points right on the chart and go to them one after another This technique provides the most flexibility in deciding where you want to travel Simply move the cursor wherever you want press a key and you re navigating 1 Press the CHART key to display the Chart screen 2 Press the cursor pad to ...

Страница 26: ...ssel and you can track their movements The radar won t be operational until you turn on the radar transmitter See Displaying radar starting on page 87 If a Northstar radar unit is interfaced to the 972 press RADAR to see the radar image Press Adjust Radar to make operating adjustments to the radar system as described in Using the Adjustment keys starting on page 91 Press Adjust Markers to set the ...

Страница 27: ...split the screen to display several navigation functions on the screen at the same time For example you could display the chart sounder and radar images simul taneously or even two chart screens A chart screen is always shown on the left side and you can choose one or two other functions to be displayed on the right side Press the SPLIT key to split the screen into two or three sections each with ...

Страница 28: ...he screen The icon explains the reason for the alarm Most of the common alarms automatically cancel themselves after ten seconds or after the condition ends For details see Alarms starting on page 132 Using TideTrack Press the STAR key repeatedly until you see the 972 s Tide Track screen a 24 hour tide graph for any of over 3 000 NOAA tide stations covering the entire U S coastline including Alask...

Страница 29: ... they are overwritten see Editing waypoints starting on page 69 Saving routes You can set the 972 to automatically save a sequence of waypoints as a route Each time you press SAVE your position will be recorded as an additional waypoint in the route See Saving a route as you travel starting on page 74 for details Man Overboard Press and hold the SAVE MOB for at least four seconds until you see the...

Страница 30: ...26 SAVE and Man Overboard MOB Northstar 972 ...

Страница 31: ...mparing vessel and browse modes 29 Rotating the chart 31 Setting up the chart screen 33 Using the course predictor line 38 Using the distance and bearing calculator 38 This section explains the electronic chart the two chart modes Vessel and Browse the various chart symbols and their meanings and how to set up the chart display to operate the way you want it to be ...

Страница 32: ...the United States Most of these aids are buoys lights lighthouses and daybeacons which typically are main tained by the U S Coast Guard Nav aids warn you of hidden dangers such as underwater hazards and to help you safely navigate specific waterways and channels On a vector chart when you move the cursor over a nav aid with popups are turned on the 972 displays a description in the popup rectangle...

Страница 33: ... point appears in the popup rectangle After pressing the cursor pad to move the cursor to a point on the chart you can press Go to cursor and ENTER to start navi gating to the designated cursor location If you placed the cursor on a waypoint this menu key would read Go to waypt You can use the cursor to select a nav aid or waypoint to show its name lat lon and distance and bearing navigate to it a...

Страница 34: ...moves automatically under your vessel which remains stationary on the screen It provides a continuous view of your surroundings Press More info to display your position coordinates in the info bar at the bottom of the screen You can also display your SOG and COG or distance and bearing to the current waypoint if any or the nearest tide and current station Browse mode The word BROWSE in the upper r...

Страница 35: ...change the angle of the charts displayed on the Chart screen As long as you re in vessel mode you can rotate the chart to any of the following angles North up No rotation Course up As your vessel changes its direction of travel the chart rotates to keep your COG straight up on the screen Course up represents your true COG as determined by the GPS receiver The 972 ignores any course changes if your...

Страница 36: ...cursor from jumping while you re browsing around on the chart Course up or Heading up Suppose you re displaying the charts as course up or heading up and you press the cursor pad to use browse mode While in browse mode the chart rotation freezes If your vessel changes course you won t see the chart rotate to the new direction until you return to vessel mode by pressing the Vessel key Only in vesse...

Страница 37: ...rts displayed choose whether the left chart is raster vector blend or photo Right chart type On a split screen with two charts displayed choose whether the right chart is raster vector blend or photo If the Chart screen s in And the radar image is Overlaid on the chart Not overlaid Browse mode The chart can t rotate in Browse mode If you change the Control key to Radar the chart s mode automatical...

Страница 38: ...require manual switching Coordinates Lat lon or Phantom Loran TDs Lat lon display Degrees minutes and seconds or degrees minutes and thousandths of minutes Lat lon grid The ON setting displays lat lon lines on the Chart screen Turn lat lon lines off when these lines add excessive clutter to your screen Outlines Displays the edges of the Passport chart regions Off Installed charts Passport regions ...

Страница 39: ...eet meters or fathoms Raster quilting Choose whether or not raster charts are quilted to provide a seamless large area of coverage You may see the edges of the chart coverage area when using this option Choosing vector chart details To set up the chart details press the Vector details menu key on the Chart Options screen To change any option press the cursor pad to move the cursor triangle to the ...

Страница 40: ...a shaded range of colors This gives a 3D like appearance to the chart Waypoints The ON setting displays your waypoints on the Chart screen and the OFF setting turns them off with the exception of waypoints on a displayed route Waypoint names The ON setting displays the name of each waypoint below its symbol The OFF setting displays just the symbol itself Tide Bars Current Arrows Changing the wake ...

Страница 41: ...you want Press ENTER to lock in the selection Enable Wake Set to On to display the wake Set to Off to turn it off Wake point every You can choose among the following options for point display and the corre sponding track length every 1 second every 2 seconds every 4 seconds every 8 seconds every 20 seconds every 40 seconds every 1 minute every 2 minutes Wake length Set the length of the displayed ...

Страница 42: ...ess Edit 4 Use the cursor pad to display the desired line length in minutes 5 Press ENTER Then just watch the predictor line on the chart or 3D steer screen to determine where your current course will take you Using the distance and bearing calculator You can quickly check the distance and bearing between any two points on the Chart screen You can also use this function to make new waypoints that ...

Страница 43: ...een Using the distance and bearing calculator Reference Manual Revision B If you want to make a waypoint at the cursor location press Add waypoint then enter its name symbol and any descrip tion on the New Waypoint screen Press ENTER to save it ...

Страница 44: ...40 Reference section 1 Using the Chart Screen Using the distance and bearing calculator Northstar 972 ...

Страница 45: ...on 2 3D maps Introduction to 3D images 42 Configuring the screen 43 Flying around the vessel 44 The 3D key displays your position on a three dimensional view of the ocean floor or land Marine charts topo maps or photos can be overlaid on the image ...

Страница 46: ...and process it for display Blending modes especially Photo Blending require a long processing time to prepare an image for display Once the data is processed this display updates quickly Overlay Turn On or Off the overlay selected may be vector charts or photo on the 3D Options screen Mode Vessel mode The camera viewpoint always points toward the vessel showing it from various angles and elevation...

Страница 47: ...ey to display the 3D Options screen You can set the following Exaggeration You can set the amount by which the terrain height is exaggerated for ease in viewing Minor changes in elevation become visible in an area that might otherwise appear flat Adjust the exaggera tion to best fit your needs from 1X no exaggeration to 60X extreme exaggera tion The keel marker and depth automatically adjust to th...

Страница 48: ...location False floor To improve the appearance of below the surface colors this function compresses the range so that the full range of colors is displayed between the surface and the false floor Choose Off 100ft 250ft 500ft 1000ft 2000ft 4000ft This option applies only when the Shaded relief is turned on Flying around the vessel Vessel Mode In Vessel mode press the cursor pad left or right to fly...

Страница 49: ...ing position COG and speed 46 Using GPS 46 Position screen options 47 Viewing GPS satellite status 48 Using Phantom Loran 49 The POSITION key displays your position coordinates GPS or Phantom Loran and lets you check out GPS signal status COG SOG and time of day are also displayed ...

Страница 50: ...hes instead of numbers The time of day and today s day and date are displayed at the bottom of the screen The name of the datum currently in use is displayed in the center of the screen Each marine chart uses a coordinate system described by its datum Most new charts use the WGS 84 datum When using the 972 with WAAS correc tions you ll usually see position measurements accurate to about one to thr...

Страница 51: ...ON while on the Position screen Dist speed units Choose Nautical miles and Knots Statute miles and Miles per Hour Kilometers and Kilometers per Hour Magnetic variation Choose True or magnetic Lat lon display Choose Degrees minutes and seconds Degrees minutes and thousandths of minutes Table 1 GPS status messages Message Meaning the GPS receiver or its communication link has a problem 3D NAV naviga...

Страница 52: ... identified by their PRN number a one or two digit number assigned by the U S government GPS satellites are represented by circles WAAS satellites are represented by ovals The center of the satellite map represents the center of the sky and the outermost ring is the horizon The view is looking down from above with east to your right and west to your left HDOP Horizontal Dilution of Precision is a ...

Страница 53: ... as if it were actually receiving loran signals These calculated TDs won t exactly match the positions of previously recorded TDs obtained directly from actual loran signals In most areas TD errors shouldn t exceed one microsecond However larger errors are possible in areas with poor station geometry or for which the 972 doesn t have accurate factory programmed ASF correction points Selecting Phan...

Страница 54: ...50 Reference section 3 Position coordinates Using Phantom Loran Northstar 972 ...

Страница 55: ...ourse predictor line 57 Navigating along routes 58 Restarting the track line 59 Stopping and restarting navigation 61 A waypoint is a specific point you designate either by entering its coordinates or by pointing to it on the chart using the cursor Hundreds of waypoints can be stored in the 972 s memory and can be strung together to form a variety of routes ...

Страница 56: ...following ways use the cursor on the Chart screen to select an existing waypoint or create a new waypoint enter numeric position coordinates select an existing waypoint from a list You can also string together several waypoints to form a route and let the 972 guide you from one waypoint to the next see Introducing routes on page 71 Designating a waypoint on the chart screen You can go to a waypoin...

Страница 57: ...ke sure the GRI displayed is correct and change it if necessary Dist Brg distance and bearing from here your present posi tion or from any waypoint stored in the 972 3 Use the keypad to enter the waypoint s coor dinates The initial position shown is your latest fix If you wish you can now give the QUIK waypoint a unique name after you ve entered its coordinates since the next QUIK waypoint you mak...

Страница 58: ...el and the desired track line Just steer to keep the vessel close to the track line see examples at left This precise navigation is especially useful for following a harbor channel or a line between shoals and sandbars You can also steer using the Chart screen when you just want to get to a waypoint and don t need to stay precisely on the designated course line The following is also displayed in t...

Страница 59: ...Ideally you ll keep the vessel symbol close to the track line and parallel to it The scale of the cross track display is shown near the bottom of the screen To change the cross track scale press the zoom IN or OUT keys If the cross track alarm is turned on the alarm limits are displayed as red lines within the cross track display Note that the heading correction display on the 2D screen showing Co...

Страница 60: ...ime Estimated Time Enroute ETE to the waypoint and Estimated Time and Date of Arrival ETA Waypoint Waypoint name description and position coordinates SOA Speed of Advance and graphical heading correction The 3D steer screen The 3D Steer screen is similar to the 2D Steer screen It displays a three dimensional view of your vessel with the current waypoint the course line to the waypoint and the loca...

Страница 61: ... line to the waypoint show the width of the allowable cross track error These lines will be present only if the Cross Track alarm is turned on Note that the blue circle surrounding each waypoint represents the allowable cross track error not the arrival radius The course predictor line The course predictor line see Using the course predictor line on page 38 provides another effective way to naviga...

Страница 62: ...d select it on the chart You can zoom IN or OUT to see a smaller or larger area of the route Starting a route To go directly to the selected waypoint in the route press Go to waypt then press ENTER The 972 calculates a track line from your present position to the selected route waypoint Your cross track error starts at zero If you wish to start navigating along a route leg rather than directly to ...

Страница 63: ...inal track line by using the cross track error display and simply continue to the waypoint Track 1 in Figure 2 after passing the obstacle if you don t need to return to your original track line you can go directly to the next waypoint by using the 972 s restart function Track 2 in Figure 2 To restart your track line from your present position press Restart and ENTER Restart is found on the Chart s...

Страница 64: ... waypoints or along an already stored route the series of waypoints is copied into the nav log which acts as a kind of scratch pad to monitor your progress You can change the nav log s route in any way you want without affecting the original route which remains safely stored in the 972 To see the waypoints you re currently navi gating along press the Navlog key on either Steer screen The Navlog sc...

Страница 65: ...dded to the original route stored in the 972 To permanently change a route you must use the edit route function For details see Editing a route starting on page 76 4 Repeat these steps for any more waypoints you want to add NOTE If you go to a waypoint or along a route by using the 972 s GO TO function the unit automatically enters and organizes the waypoints in the navlog Reversing your trip You ...

Страница 66: ...aypoints The NAVLOG screen Northstar 972 Editing the Navlog You can add or delete waypoints from the navlog provided you first stop navigation as described above You can clear the Navlog by pressing CLR and ENT while the navlog is displayed ...

Страница 67: ...ting routes from a list of waypoints 73 Saving a route as you travel 74 Editing a route 76 Transferring waypoints routes to other units 80 Transferring waypoints to and from a PC 83 This chapter explains how to create new waypoints and modify existing ones how to make a route from stored waypoints and how to create a route by saving it as you travel You ll also learn how to change a route by inser...

Страница 68: ...you ve turned off the display of waypoints on the Chart screen you ll only see waypoints that are currently in use for navigation Waypoints on the local list The Waypoints local screen displays up to 30 of the closest waypoints within 100 nm in order of their distance from your present position This list is particularly useful for working with the waypoints in your area Often these are the only wa...

Страница 69: ...umerically by entering position coordinates as lat lon loran TDs or distance and bearing on the New Waypoint screen from the chart by pointing to the waypoint s location on the Chart screen Assigning a name and description To permanently store a waypoint you must give it a name The name can be from one to six characters long and must be different from all the other waypoint names stored in the 972...

Страница 70: ...f necessary the key on the 972 keypad that contains the letter or digit you wish to enter Press the cursor pad when necessary to move the cursor to the next character 5 Choose a symbol for the waypoint by repeat edly pressing Symbol 6 Enter the waypoint s coordinates To switch between displaying coordinates as lat lon as loran TDs or as distance and bearing coordi nates press Position For lat lon ...

Страница 71: ...sing Add waypoint followed by Select waypoint Enter the bearing and the distance from the designated waypoint to your new waypoint If you change your mind and want to return to specifying distance and bearing from your present position instead of from another waypoint press From vessel on the chart screen 7 Press ENTER to permanently store the new waypoint NOTE Don t enter a number into the Warn r...

Страница 72: ...ts Then if you travel into a designated avoidance area the 972 will sound a beep and flash an alarm on the screen The 972 displays an avoidance area on the Chart screen as a waypoint surrounded by a circle The circle is the avoidance area s warning radius which you set when you create or edit the waypoint You can use the international slashed circle no entry symbol as the avoidance point s symbol ...

Страница 73: ...oidance area provided you ve turned on the audio alarm See Alarm audio on page 136 Editing waypoints You can change any information about an existing waypoint except for the type of coordinates used to save it or erase it entirely by using the 972 s waypoint editing function Changing waypoints To change a waypoint s name description position coordinates or warning radius 1 Press WAYPTS ROUTES then...

Страница 74: ...ontaining this waypoint will be changed to reflect the waypoint s new position A warning is displayed before any routes are changed Erasing waypoints To permanently erase the waypoint press Erase on the Edit Waypoint screen then ENTER You can t erase a waypoint if it s used in a route you must first remove it from the route For details about editing routes see Editing a route starting on page 76 U...

Страница 75: ... Waypoints in a route are connected by straight lines called legs The 972 can follow route legs in a forward or backward direction You can start following a route in either of two ways go directly to any waypoint in the route then automatically continue on the next leg cross track distance starts at zero because you re on the course line from your present position to the waypoint start along any l...

Страница 76: ...display the New Route screen 3 Enter the name of the new route using the keypad and cursor pad 4 If the Use Chart menu key is displayed press it to change from list based entry to chart based entry 5 Press ENTER The New Route chart screen is displayed you may now start selecting waypoints for the new route 6 To add waypoints to the route move the cur sor to the first waypoint s location which can ...

Страница 77: ...ress Cancel add to stop appending waypoints and then select a route leg or waypoint to continue editing a dif ferent part of the route 9 When finished press Return to switch to the New Route screen to see all of the route s waypoints Creating routes from a list of waypoints To create a route from a list of existing waypoints 1 Press WAYPTS ROUTES then press Routes 2 Press New to display the New Ro...

Страница 78: ...he route The save route function makes this a very simple process First you tell the 972 that you want to save a route as you travel then you press SAVE MOB as you pass each new waypoint then you tell it to stop saving the route when you reach the end of the route To begin saving a route as you travel 1 Press WAYPTS ROUTES and then press Routes to display the Routes screen 2 Press the Save menu ke...

Страница 79: ...point and the waypoint will automati cally be added to the route being saved The waypoint is stored with a name similar to 0001 The parentheses indicate that the waypoint was automatically named and the four digit number uniquely identi fies each waypoint Each waypoint is also given a description with the time and date you stored the waypoint NOTE While you re automatically saving a route you can ...

Страница 80: ...op save and ENTER twice Editing a route You can make changes to a route graphi cally using the Chart screen or you can change it using a list of its waypoints You can make any of the following changes change the route name add new or existing waypoints to the beginning middle or end of the route remove waypoints from the route erase the entire route To edit a route 1 Press WAYPTS ROUTES then press...

Страница 81: ...ll arrows in each leg and the cursor is in the middle of the screen Editing from the chart is described below editing from a list of waypoints is described in Editing a route using a waypoints list starting on page 78 Editing a route using the chart After you have accessed a route as described above you can add or remove waypoints using the chart as follows Adding waypoints to a route You can add ...

Страница 82: ...d new waypoint If you re adding a waypoint to a leg the key is marked Split leg Move the cursor to the new waypoint position and press Insert new waypoint 5 Repeat for each new waypoint or cursor loca tion you want to add to the route 6 When you re finished press Cancel add Instead you can press Return to switch to list based editing Removing waypoints from a route To remove waypoints from the rou...

Страница 83: ...ed way point then press ENTER to add the waypoint to the route Removing waypoints from a route 1 Press the cursor pad to move the left hand pointer directly onto the waypoint you want to remove 2 Press Remove 3 Press ENTER Erasing an entire route To erase a route 1 On the Routes screen press the CURSOR PAD to select the route you want to erase 2 Press Erase 3 Press ENTER Editing a route you re nav...

Страница 84: ...es during the transfer It is preferable to stop navigating on the receiving unit by pressing STEER Navlog and then Stop The unit you operate to perform the transfer is called the control unit The instructions here apply to operating the 972 if you choose to operate the controls on an older unit to perform the transfer the instructions may be slightly different Be sure to choose the right function ...

Страница 85: ...ge Transfer aborted by key hit Waypoints and routes transferred up to that point are in the receiving unit be aware that routes may not contain all of their waypoints due to the transfer interruption Press the Start key again to restart the entire transfer process from the beginning 1 Choose the unit you d like to use as the control unit The instructions below are for a 972 Remember You can use ei...

Страница 86: ...ommu nication error If the sending unit doesn t have any way points and routes the control unit displays the dialog box message No waypts or routes to transfer and the status bar message No transfer done If the receiving unit is completely full of waypoints and routes with no more room available the master unit displays the dia log box message Status error 002 database full 8 If the transfer is su...

Страница 87: ... to keep a separate copy on your Personal Computer You can transfer waypoints and routes to your PC using Northstar s loader cable part number 1100 LC and the included PC software Using available third party software you can copy edit or plot your waypoints and routes Most importantly you can reload them from your PC into your 972 if they re accidentally erased or lost due to equipment failure For...

Страница 88: ...84 Reference section 5 Creating waypoints and routes Transferring waypoints to and from a PC Northstar 972 ...

Страница 89: ...g radar 87 Using the radar s main menu keys 88 Overlaying radar on the chart 90 Changing radar scale and rotation 90 Range rings 91 Using the Adjustment keys 91 Using the Markers keys 94 Radar cursor 96 MARPA targets 96 This chapter first describes radar briefly and then explains how to display control and adjust the 972 s radar ...

Страница 90: ...86 Reference section 6 Radar Transferring waypoints to and from a PC Northstar 972 ...

Страница 91: ... can see how that target is moving Turning the radar transmitter on and off Each time you turn on the Northstar 972 the radar transmitter must be turned on separately as a safety feature To turn the transmitter on or off 1 Press RADAR to display the radar screen 2 Press Transmit so it indicates On or Standby as desired Displaying radar The radar image includes a compass rose to show the direction ...

Страница 92: ...r radar can be activated from the Chart Options screen Press Demo control and then Radar demo The radar demo position is located in the Fort Lauderdale area Using the radar s main menu keys The radar s main menu keys allow you to turn the transmitter on or off switch control between the radar and chart if the chart is also displayed rotate the radar image access the radar adjustments access the ra...

Страница 93: ... Adjusting the radar Press the Adjust radar key to access several pages of radar adjustments For more information about using these keys see Using the Adjustment keys on page 91 Using the radar markers Press Adjust Markers to display the controls for the 972 s electronic bearing line EBL variable range marker VRM and guard zone For more information about using these keys see Using the Markers keys...

Страница 94: ... zoom in smaller area more detail or the OUT key to zoom out wider area less detail Using zoom on a split screen If there s no radar overlay on the chart the chart and radar are scaled separately Zooming in on the chart for example has no effect on the radar s scale If the Control key indicates Radar you re zooming the radar if it indicates Chart you re zooming the chart However if the radar overl...

Страница 95: ... while the system is turned off The adjustment pages are Image Advanced settings Presets Setup Using the keys A radar menu key on these screens must be activated by pressing it once to change the key from blue to red Any key that is red is active and will respond immediately A blue key must first be pressed to activate it For keys with an Auto and Manual setting press the menu a second time to cha...

Страница 96: ...ch modes The gain setting can be entered on the keypad or by using the cursor pad Manual settings range from 0 to 99 Manual gain adjustments will be different for each range scale Longer ranges generally require more gain If speckling appears on the screen you may wish to decrease the gain a bit or increase the sea clutter setting Sea Clutter controls the strength of the clutter echoes returned fr...

Страница 97: ...ugh rain and fog Select Short for better discrimination of small targets Expand Select On to make small echoes appear larger Select Off for normal operation Speed Select Normal for normal antenna rotation speed 24 r p m Select Fast for quicker rotation 48 r p m NOTE For 4kW Dome radars you must switch the radar to Standby mode and then back to Transmit when this setting is changed For all other ra...

Страница 98: ...n 1 mile Auto tuning STC curve The STC curve controls how the sea clutter function decreases the gain near the vessel Setup See the radar installation manual P N GMEKRadIM for using these controls Under normal circumstances these controls will not be used for day to day operation They are set once during the initial instal lation and should not be changed except during maintenance of the system Tr...

Страница 99: ...Press the Guard Zone menu key to control this feature Echoes detected inside the guard zone will cause an alarm The guard zone is bounded by red lines an inner and an outer arc centered on the vessel and two straight lines extending outward from the vessel The interior of the guard zone is yellow You can turn visibility of the zone on or off and change its boundaries Press the following keys to ad...

Страница 100: ...control how much data is displayed for each target MARPA is used primarily for collision avoidance in larger ships at ranges from about 2 to 8 nautical miles and in smaller ships at ranges between 1 2 and 4 nautical miles How does MARPA work MARPA works by continuously assessing a target you have designated As the vessel pitches and rolls with the sea the radar s view the target s shape and size a...

Страница 101: ... placed over the target A list of symbols and their meanings is shown below The symbols follow the targets for as long as they can be tracked by the 972 Symbol Symbol name Symbol definition Dashed box Radar is attempting to acquire the target as a MARPA target This typically takes up to several full rotations of the radar antenna array Blue circle with vector Normal target Vector shows course and ...

Страница 102: ...A the calculated Closest Point of Approach how close the target might come to your vessel based on current courses and speeds TCPA Time to Closest Point of Approach how soon the target will reach the CPA POS the position coordinates of the target as lat lon or phantom loran TDs Target controls Select by Targets may change their positions in the list as then move relative to the vessel To keep the ...

Страница 103: ... s COG and SOG name and the target s CPA and TCPA all data none Generally you may wish to display only the target name to avoid cluttering the screen and covering the display of other radar echoes Tracks Targets can leave tracks showing their previous positions and their motion Choose the length of the tracks from 1 minute to 15 minutes or turn them off Sorting Choose how the targets list is sorte...

Страница 104: ...ARPA targets Northstar 972 Alarm Turn the target alarm function on or off Range Set the distance of the range alarm and turn it on or off CPA Set the distance of the CPA alarm and turn it on or off TCPA Set the time of the TCPA alarm ...

Страница 105: ...ooming in and out 109 Echo Sounder setup 112 The picture menu 114 Changing the depth settings 116 Using the MORE key 117 Viewing past echoes using SoundTrac 120 Echo sounding alarms 121 The Northstar Echo Sounder connects with the Northstar 972 and a transducer to add echo sounding capability to the system See the Northstar 491 Installation Manual or the Airmar website www airmar com for recommend...

Страница 106: ...102 Reference section 7 Echo sounding MARPA targets Northstar 972 ...

Страница 107: ... second delay after the 972 turns off before the 491 turns off Setting up the sounder Your sounder should be installed by a quali fied marine technician Your satisfaction with the system s performance will be greatly influenced by the practical knowledge and experience of the installer Unlike GPS or other marine electronics systems echo sounder installation is as much an art as it is a science The...

Страница 108: ...er Northstar 972 You may wish to change the following options from time to time to match your personal preferences depth units feet meters or fathoms on the screen temperature units Celsius or Fahrenheit on the screen temperature graph scale lowest and highest on the screen ...

Страница 109: ...cy Zoom Depth More ECHO SCREEN Gain Clutter Noise Hue Signal level Return Shift Range Depth box Return Alarms Adv speed White level AScope Data Return Fish alarm Bottom alarm Temp alarm Return Speed Tmp box Tmp graph Depth box Return Picture settings Depth settings More settings Alarm settings Data on screen Figure 5 Echo sounder menu structure ...

Страница 110: ...n also review old echoes using Northstar s exclusive SoundTrac feature For details see Viewing past echoes using SoundTrac on page 120 Depth Scale Depth box Water temperature box Water temperature scale Depth marker and indicator Echo data Lat lon of vessel Dist brg to waypoint Steering indicator Speed course and speed through the water Frequency selection and indicator Navigation information Colo...

Страница 111: ...ter depth changes It is recommended that the sounder be operated automatically whenever possible The sounder can reliably detect the seabed depth only when it controls the gain and clutter settings Cruising or fishing Automatic mode has two variations Cruising and Fishing auto cruising optimizes the gain and clutter for tracking the bottom with less emphasis on any fish in the water auto fishing o...

Страница 112: ... the frequency on the right side when adjusting the picture you can see the effect of changes on the right side To choose the transducer frequency press Frequency until the desired combination is shown When you change the frequency echoes already on the screen don t change they just move off the screen as they are replaced by echoes at the new frequency Table 2 50 kHz vs 200 kHz 50 kHz 200 kHz Lon...

Страница 113: ...or turn the zoom feature off bottom zoom bottom lock bottom lock center marker zoom The current zoom mode is displayed on the Zoom key For all zoom modes the original unzoomed echoes are on the right side and the magnified area is shown on the left side of the screen Choosing the zoom scale Press IN to zoom in and increase the magnification of the echoes you see below the top edge of the marker Pr...

Страница 114: ...de If the seabed moves out of the lower half of the screen for example if you travel into deeper water the sounder automati cally repositions the bottom back into the lower half You ll see the zoomed image jump up or down from time to time as the sounder keeps the seabed displayed on the screen Bottom lock zoom Bottom lock zoom is similar to bottom zoom except the magnified sea bottom is flattened...

Страница 115: ...e bottom lock zoom and also examine the seabed s composition Marker zoom When you select marker zoom you can choose the part of the water column to magnify The top edge of the magnified area is determined by the location of the depth marker To move the depth marker press the cursor pad up or down Leaving zoom mode To return to the normal unzoomed display just press Zoom repeatedly until you have c...

Страница 116: ...m the Sounder screen press and hold the SOUNDER key to display the Options Service Info screen and then press Sounder Options Transducer depth This option specifies how far below the surface of the water the transducer is mounted The number is added to all depths measured by the sounder so they will refer to depth from the surface not from the transducer This value should have been set correctly d...

Страница 117: ... to need adjustment The 50 kHz and 200kHz calibrations are used to equalize the signal strengths of the two frequencies Demo mode To activate Demo mode see Using demo mode on page 107 Speed and temperature sensor setup These functions are set during installation and should not be changed unless they are known to need adjustment To simplify operation the sensor installed options can be set to No to...

Страница 118: ...t automatically by pressing Auto This provides an excel lent picture under most conditions and allows the sounder to reliably detect the seabed depth Gain is normally adjusted together with clutter as described on the next page To adjust the gain 1 At the Echo Sounder screen press Picture 2 Press Gain 3 Press the cursor pad up or down to adjust the gain or use the keypad to manually enter the desi...

Страница 119: ...or example if you select a signal level of 3 echo strengths of 0 through 3 are all displayed using the same color as the background 4 Press Return to go back to the Echo Sounder screen Suppressing interference the noise limiter The noise limiter reduces the adverse effects of interference caused by other nearby echo sounders or electronic devices However the noise limiter may cause some very weak ...

Страница 120: ...ode the echo sounder sets these values based on its current environment However you can manually override these auto values for your specific needs at any time There are two depth settings shift how far below the surface the echo sounder picture starts range the depth covered by the echo sounder picture from the top of the screen to the bottom of the screen Setting the picture s shift starting dep...

Страница 121: ...size and location of the depth box 1 Press Depth 2 To cycle through the size choices repeatedly press Depth box To move the box up and down press the cursor pad 3 Press Return to go back to the Echo Sounder screen The depth box can also be adjusted by pressing More then pressing Data Using the depth marker You can use the depth marker to accu rately measure the depth of an echo To display the dept...

Страница 122: ...ed for every four pings 1 8 one line of data is displayed for every eight pings For speeds 1 2 1 4 and 1 8 each displayed line of data is the average of 2 4 or 8 pings respectively To set the advance speed 1 At the Echo Sounder screen press More then press Adv spd 2 Keep pressing Adv spd to select the desired advance speed 3 Press Return to go back to the Echo Sounder screen Displaying the A scope...

Страница 123: ...figured Sounder configuration settings are found on the Sounder Options screen see Echo Sounder setup starting on page 112 Speed through the water Press Speed to turn the Speed Through the Water display on or off STW is displayed on the bottom right corner of the screen Temperature box Press the Tmp box key to set the size and location of the box displaying the water temperature white numbers on a...

Страница 124: ...r pad to the left The 972 recalls echoes from the last 3000 pings As you move the position marker with the cursor pad the marker speed accelerates to quickly scroll to the desired location The lat lon of the position marker is displayed at the bottom of the picture along with the time elapsed since the ping and the distance and bearing from your present position to the marker assuming the navigato...

Страница 125: ...um size requirements You may further narrow your fish alarms to notify you of the presence of fish within or outside a certain depth range Only those fish that are detected inside or outside of that range will trigger the alarm Green markers are displayed to indicate the range When fish are detected the alert tone sounds and the flashing FISH alarm icon is displayed This message clears automati ca...

Страница 126: ...dow press Alarms Generally you ll want to turn the alarm on after you finish making all the other settings Setting the bottom alarm When the bottom alarm is set an alarm sounds if the echo sounder detects that the bottom is shallower than the limit you ve set A red marker indicates the limit When a shallow bottom is detected the alert tone sounds and the flashing alarm icon BOTTOM is displayed Thi...

Страница 127: ...screen press More 2 Press Alarms 3 Press Temp alarm Setting the upper and lower temperature limits You can set the upper and lower tempera ture limits When the water temperature is either inside or outside these limits the temperature alarm will sound To set the upper temperature limit 1 At the temperature alarm window press Set upper 2 Press the cursor pad up or down to set the temperature or use...

Страница 128: ...Check power to 491 with a voltme ter Verify data cable is properly wired and connected 4 Is the LED blinking or steady on If Flashing proceed to step 5 If Steady On Check transducer connector for proper wiring If wiring is correct check transducer impedance Replace transducer if open or shorted 5 Is the LED flashing once per second or four times per second If Four times per Second there is most li...

Страница 129: ... housing If a transducer will be exposed to salt water coat it with anti fouling paint to prevent sea growth To clean a transducer of sand debris or sea growth use a stiff brush or putty knife If necessary wet sand with finer grade wet or dry paper Use sanding sparingly as repeated sanding may affect a transducer s performance at high speeds Check the transducer periodically Additional information...

Страница 130: ...126 Reference section 7 Echo sounding Troubleshooting the echo sounder Northstar 972 ...

Страница 131: ...127 Reference Manual Revision B Reference section 8 Video Video sources 128 Displaying video 128 ...

Страница 132: ...l screen video image works just like any other function press VIDEO to display it and press any other function key to switch to another screen If no video signal is present a blue screen is displayed Press and hold VIDEO and turn on a connected video source Auto sequencing The 972 can cycle automatically between the four video inputs Press Autocycle to turn this feature on or off Choose the time f...

Страница 133: ... screen by distorting it slightly Restrict displays the entire image with side bars filling the edges of the screen Autocycle time Choose the time that each camera will be displayed when Autocycle is turned on 5 seconds 10 seconds 30 seconds 1 minute 5 minutes Cameras Camera one through Camera four On or Off ...

Страница 134: ...130 Reference section 8 Video Displaying video Northstar 972 ...

Страница 135: ...131 Reference Manual Revision B Reference section 9 Alarms and TideTrack Alarms 132 TideTrack 137 ...

Страница 136: ... on Morse code If you re choosing whether to keep the alarm audio on or off remember that the audio beep may be a necessity when you re unable to look at the display screen Displaying alarm messages To display more information about current and previous alarms press the STAR key New alarm messages The word NEW in the Recent Alarms box tells you that the alarm shown hasn t been acknowledged or clea...

Страница 137: ...alarms are auto clearing however they can also be manually cleared if desired Alarms that require manual clearing stay on screen until you clear them on the alarms screen Some serious alarms such as loss of position fixes will repeat at intervals All of the 972 s alarms are described in Table 3 below Table 3 972 alarms ALARM ICON ALARM MESSAGE ACTIVATED WHEN CONTROLLED ON ALARM SCREEN CLEARS AFTER...

Страница 138: ... in demo mode or a networked unit has selected demo mode No No YES NO GPS POSITION FIX GPS position fix is unavailable and GPS or Phantom loran is the chosen position source This alarm is delayed for three minutes at power up No No YES GPS COMMUNICATION FAILURE The GPS receiver may have failed No No No YOU VE PASSED WAYPT NAME Vessel has passed abeam of the active waypoint without entering the arr...

Страница 139: ... than the specific limit you ve set No Within 20 seconds after the seabed falls below the alarm zone YES TEMPERATURE ALARM Water temperature reaches the condition specified No FISH ALARM Echoes are detected within the specified depth range No Radar alarms shown only if radar is enabled RADAR GUARD VIOLATION Radar echoes are received within the guard zone No No No RADAR DATA NOT AVAILABLE The 972 h...

Страница 140: ... drifting the length of the anchor chain plus a safety factor to allow for any GPS inaccuracy NOTE Remember to press Raise Anchor before you intentionally move away from the anchor drop point To set the anchor alarm 1 Press Drop anchor where you ve dropped the anchor A waypoint named ANCR is created at this location 2 Press ENTER 3 Press the cursor pad to highlight Anchor Alarm then press Edit ala...

Страница 141: ...dius is 0 20 nautical miles or about 1200 feet You can set the radius to as little as 0 01 nm approximately 60 feet Either of two alarms may be triggered when the vessel enters the arrive radius If you re following a route and have chosen automatic waypoint switching the 972 displays the CHANGING alarm icon and switches to the next leg Automatic waypoint switching will also occur if you cross the ...

Страница 142: ...e is labelled with the exact height that it represents Press the cursor pad up or down to advance or go back one day at a time Mean Lower Low Water MLLW is shown as a solid line near the bottom of the graph A contrasting vertical line is displayed at the current time Just below the tide graph is the time scale showing the vessel s local time for each point or if Time Zone has been pressed to selec...

Страница 143: ... select tide stations directly on the chart provided tide bars are being displayed To display tide bars press CHART to dis play the Chart screen Then press and hold CHART to display the Chart Options screen and press Vector details Then turn on tide bars To choose a tide station move the cursor over the station and press Pick station Choosing a specific date The Tide Track screen normally displays...

Страница 144: ...day or location of a current station in the same way as described above Currents are displayed as flood above the base line ebb below the base line Maximums and minimums are shown in the lower right corner You may often see discontinuities in the currents graph These are not errors they are caused by rotary currents that inher ently do not have a smooth transition as the tide goes in and out ...

Страница 145: ...141 Reference Manual Revision B Reference section 10 Networking General information 142 Restrictions 142 ...

Страница 146: ...onnected to the master unit The only restrictions on networking are the following there must be one and only one master unit operating in a network all units must have the same software version If for example a slave unit is turned on before the master a message is displayed reminding the user to turn on the master unit before using the slave In case the master unit is not available in for service...

Страница 147: ... a master unit To do this 1 Turn the unit on When the animated Northstar screen appears press the STAR key 2 Follow the displayed instructions The unit will turn on and operate as a master unit After the original master unit is restored the replacement unit should be set back to slave status Any changes made to the database will be lost when the unit is returned to the master setting ...

Страница 148: ...144 Reference section 10 Networking Restrictions Northstar 972 ...

Страница 149: ...Reference Manual Revision B Reference section 11 Setup 972 configuration 146 Navigation options 147 Setting up the echosounder 151 Installing software updates 151 Diagnostics 152 Changing the time zone 153 ...

Страница 150: ...ation functions are accessed by pressing the STAR key several times to display the Options Service Info screen These settings are usually adjusted by the system installer or electronics technician On the Options Service Info screen you can also see your unit s serial number software versions and receiver self test results Changing the settings To change any of the options explained in detail on th...

Страница 151: ...tomatic the 972 displays the new distance and bearing information for the next waypoint when you arrive at the previous one It immediately stops navigating when you pass a lone waypoint or the last waypoint in a route NOTE For instructions on changing the waypoint arrival distance see Arrive radius on page 137 You may want to switch waypoints manually if you re maneuvering around a waypoint in sea...

Страница 152: ... save a waypoint by pressing the SAVE key the 972 automatically assigns a sequential waypoint number such as S001 to each point stored When this number passes the number you set in the Max saved waypt option the factory default setting is 199 saved waypoints it restarts at the number 1 and overwrites the old saved waypoint previously designated number 1 For many applications you may want to set th...

Страница 153: ...gs by lengthening the time over which your speed is averaged from two to ten seconds Averaging can also be turned off for the quickest possible reaction time Shorter averaging times provide a faster display of speed changes but with less accuracy A longer averaging time is useful at lower speeds when you require the steadiest readings and highest accuracy such as when you want to trawl at a certai...

Страница 154: ...tructions on how to do this see the Northstar 972 Installation Manual part number GM972IM Entering a personalized owner s message To provide your 972 with a substantial measure of theft protection you can enter a personalized owner identification message that is displayed every time the unit is turned on To enter or change this message you need an access code that Northstar provides when you confi...

Страница 155: ...r these ports press the STAR key to display the Options Service Info screen then Port setup options and Wiring info For details about interfacing the 972 refer to the 972 Installation Manual P N GM972IM or contact your local autho rized Northstar dealer Setting up the echosounder For the echosounder to work with the 972 you must configure the echosounder to the 972 s AUX port and then set up the A...

Страница 156: ...ently operating is identified with the text me Testing the 972 s keypad A built in keypad test lets you check the integrity of all the control head s keys 1 On the Options Service Info screen press Diagnostics then Keypad Pressing each key identifies it on the screen 2 When you re done press and hold the cursor pad down until the unit displays the Options Service Info screen again Using the LCD te...

Страница 157: ...local time zone and time of today s sunrise and sunset are shown When shipped from the factory the time zone is set to GMT Greenwich Mean Time Note that the day of the week in Greenwich England may be different from the day in your local time zone To change the time zone used for all of the 972 time displays press Time zone and use the cursor pad to select the desired zone and standard or daylight...

Страница 158: ...154 Reference section 11 Setup Changing the time zone Northstar 972 ...

Страница 159: ...155 Reference Manual Revision B Appendix A Datum list The following pages list all of the datums available in the 972 together with the mathe matical parameters for each ...

Страница 160: ... mean value CL1880 160 8 300 ARC60_K ARC 1960 Kenya CL1880 161 7 300 ARC60_T ARC 1960 Tanzania CL1880 158 12 299 ASC Ascension Island 1958 INTL 207 107 52 ABE Astro Beacon E Pacific Isl INTL 145 75 272 AB4 Astro B4 Sorol Atoll Hawaiian Islands INTL 114 116 333 AD714 Astro Dos 71 4 Atlantic Isl INTL 320 550 494 AS52 Astronomic Station 1952 INTL 124 234 25 AG66 Australian Geodetic 1966 AUSTR 133 48 ...

Страница 161: ...1965 AIRYM 506 122 611 ISTS ISTS 073 Astro 1969 INTL 208 435 229 JI61 Johnston Island 1961 INTL 191 77 204 JAND Kandawala Sri Lanka EVRST 97 787 86 KERG Kerguelen Island Indian Ocean INTL 145 187 103 KERT Kertau 1948 Malaysia EVRSTM 11 851 5 KKJ KKJ Finnish FINN 78 231 97 LC5A L C 5 Astro Caribbean CL1866 42 124 147 LIB64 Liberia 1964 CL1880 90 40 88 LUZ_P Luzon Phillipines CL1866 133 77 51 LUZ_M ...

Страница 162: ...ld Hawaiian Maui CL1866 65 290 190 OHW_OA Old Hawaiian Oahu CL1866 56 284 181 OMAN Oman CL1880 346 1 224 OSGB_MN Ordin Survey of Gr Britain 1936 mean value AIRY 375 111 431 OSGB_E Ordin Survey of Great Britain 1936 England AIRY 371 112 434 OSGB_IM Ordin Survey of G B 1936 Isle of Man Wales AIRY 371 111 434 OSGB_SSI Ord Surv of G B 1936 Scot Shetlnd Islands AIRY 384 111 425 OSGB_WL Ordinance Survey...

Страница 163: ... South American 1969 Guyana SA1969 53 3 47 SA69_PA South American 1969 Paraguay SA1969 61 2 33 SA69_PR South American 1969 Peru SA1969 58 0 44 SA69_TT South American 1969 Trinidad and Tobago SA1969 45 12 33 SA69_VZ South American 1969 Venezuela SA1969 45 8 33 SASIA South Asia FS1960M 7 10 26 SEBAS Southeast Base INTL 499 249 314 SWBAS Southwest Base INTL 104 167 38 TIMB Timbalai 1948 Malaysia EVRS...

Страница 164: ...160 Reference section 11 Appendix A Datum list Changing the time zone Northstar 972 ...

Страница 165: ...ine Passport OnBoard Jeppesen Marine Raster charts 3 D Bathymetric charts of U S waters Satellite photos of U S waters Vector 3 D overlay Shaded relief Vector photo blend U S street road data Maptech 4 0 or greater BSB NOAA Raster chart compatible Scales from 4096nm to 1 8nm Displays chart data vessel waypoints routes and tracks Built in worldwide map to 64nm Instantaneous panning and zooming ...

Страница 166: ...points or routes graphically Plot any route with automatic chart scale selection WAYPOINT NAVIGATION Point and Shoot navigation Navigate to coordinates waypoints and along routes Save current position Follow stored routes forward or backward OTHER FUNCTIONS Anchor watch Avoidance alarm GPS clock Tidetrack tide information Current information with chart overlay INTERFACING Networkable with other 97...

Страница 167: ...68 XGA 10 36 VDC 36 Watts power Operating temperature 0 C to 55 C max 95 relative humidity non condensing Storage temperature 20 C to 80 C Flush mount only IPX6 rating from front IPX2 rating from rear WAAS SPECIFICATIONS Integrated 12 channel L1 GPS WAAS Pod antenna receiver 2 channel WAAS reception WAAS accuracy 2 meters 2dRMS 50 antenna cable standard OPTIONS Compatible with Northstar Ethernet R...

Страница 168: ...164 Northstar 972 Notes ...

Страница 169: ...Notes 165 Operator s Manual Revision B ...

Страница 170: ...166 Northstar 972 Notes ...

Страница 171: ...Notes 167 Operator s Manual Revision B ...

Страница 172: ...168 Northstar 972 Notes ...

Страница 173: ...Notes 169 Operator s Manual Revision B ...

Страница 174: ...170 Northstar 972 Notes ...

Страница 175: ...Notes 171 Operator s Manual Revision B ...

Страница 176: ...172 Northstar 972 Notes ...

Страница 177: ...Notes 173 Operator s Manual Revision B ...

Страница 178: ...174 Northstar 972 Notes ...

Страница 179: ...Notes 175 Operator s Manual Revision B ...

Страница 180: ...176 Northstar 972 Notes ...

Страница 181: ...Notes 177 Operator s Manual Revision B ...

Страница 182: ...178 Northstar 972 Notes ...

Страница 183: ...Notes 179 Operator s Manual Revision B ...

Страница 184: ...180 Northstar 972 Notes ...

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