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972 User Manual Rev B.fm

1. Datum ID Datum name ELLIPSOID delta x delta y delta z NAD27_BH North American 1927 Bahamas CL1866 4 154 178 NAD27_SS North American 1927 San Salvador Island CL1866 1 140 165 NAD27_CN North American 1927 Canada CL1866 10 158 187 NAD27_AB North American 1927 Alberta and B C CL1866 7 162 188 NAD27_EC North American 1927 East Canada CL1866 22 160 190 NAD27_MO North American 1927 Manitoba and Ontario CL1866 9 157 184 NAD27_NE North American 1927 N W Terrs amp Sask CL1866 4 159 188 NAD27_YK North American 1927 Yukon CL1866 7 139 181 NAD27_CZ North American 1927 Canal Zone CL1866 0 125 201 NAD27_CR North American 1927 Caribbean CL1866 7 152 178 NAD27_CA North American 1927 Central America CL1866 0 125 194 NAD27_CU North American 1927 Cuba CL1866 9 152 178 NAD27_GR North American 1927 Greenland CL1866 11 114 195 NAD27_MX North American 1927 Mexico CL1866 12 130 190 NAD83 North American 1983 GRS80 0 0 0 OB1966 Observatorio 1966 Atl Isl INTL 425 169 81 OEG Old Egyptian HELM 130 110 13 OHW_MN Old Hawaiian mean value CL1866 61 285 181 OHW_HW Old Hawaiian Hawaii CL1866 89 279 183 OHW_KA Old Hawaiian Kauai CL1866 45 290 172 OHW_MA Old 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
2. Datum ID Datum name ELLIPSOID delta x delta y delta z ROME Rome 1940 INTL 225 65 9 SDOS Santo DOS S W Pacific Isl INTL 170 42 84 SBRAZ Sao Braz Atl Isl INTL 203 141 53 SHILL Sapper Hill 1943 INTL 355 16 74 SCHW Schwarzeck Namibia B1841N 616 97 251 SA69_MN South American 1969 mean value SA1969 57 1 41 SA69_AG South American 196 9 Argentina SA1969 62 1 37 SA69_BO South American 1969 Bolivia SA1969 61 2 48 SA69_BR South American 1969 Brazil SA1969 60 2 41 SA69 CH South American 1969 Chile SA1969 75 1 44 SA69_CO South American 1969 Colombia SA1969 44 6 36 SA69_EC South American 1969 Ecuador SA1969 48 3 44 SA69_GY 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 EVRST 689 691 46 TOK_MN Tokyo mean value B1841 128 481 664 TOK_JP Tokyo Japan B1841 123 483 662 TOK_KR Tokyo Korea B1841 128 481 665 TOK_OK Tokyo Okinawa B1841 135 478 661 TA68 Tristan Astrological 1968 S Atl INTL 632 438 609 VL16 Viti Levu 1916 S W Pac Isl CL1880 51 391 36 WE60 Wake Eniwetok 1960 HOUGH 101 52 39 WGS72 WGS 1972 WGS 72 0 0 45 WG
3. oooooooo 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 Reference Manual Revision B QT Using electronic charts CAUTION A Nav aids have been converted from official paper charts into the electronic format on your screen and there fore aren t necessarily as accurate as the paper charts In some areas only the most important nav aids may be shown Electronic charts contain most of the infor mation from the original paper charts You can select which categories of data are displayed to simplify the screen When used with caution electronic charts open up a world of navigational accuracy and simplicity Chart boundaries The 972 displays the boundary line of each chart on the Chart screen You can turn these lines off if you prefer see Choosing vector chart details starting on page 35 If you move from a highly detailed chart to a less detailed one you may see a sudden change in the detail shown on the screen just as if you had changed from one detailed paper chart to a less detailed one The displayed boundary lines may help indicate when this change in detail is going to happen Lights and buoys The nav
4. 83 6 RAGA devas in inae E cenddveaderaes 85 How radar works ooooccccooocococcccco oo 87 Displaying fadar oooooccoooccoooccono oo 87 Turning the radar transmitter on and off 87 Overlaying radar on the chart 90 Changing radar scale and rotation 90 Using the radar s main menu keys 88 Using the Adjustment kKeyS o o ooooo 91 Using the Markers KeyS ooccoooccooo o o 94 Radar CUISOr 6 6 eee eee 96 MARPA targets 0 0 cee cece eee eee 96 7 Echosounding cece ewes eens 101 Welcome to the Northstar Echo Sounder 103 Displaying the echo sounder s picture 106 Using automatic mode ooooccooocccoooo 107 Changing the frequency of echoes 108 Zooming in and Out 0 0 eee ee eee 109 Echo Sounder setup cee e eens 112 The picture menu 0 eee ee eee eee 114 Changing the depth settings 116 Using the MORE key 0 ee eee oo 117 Setting the ECHO screen data 119 Viewing past echoes using SoundTrac 120 Echo sounding alarms oo oooocccoooc 121 8 VICO a A A 127 Video SOUICES eenia eirian aaa eee eee 128 Displaying video 0 eee eee ee eee 128 9 Alarms and TideTrack 131 Al AIMS 4 cisco ad one pera see eae ee eens bee 132 LAA
5. 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 confirm registration of your system You can contact customer service by phone or fax with your registration information in order to obtain that code Once you ve received your registered owner access code you can enter your owner ID message 1 From the Display Options menu select the Owner s Message option and press Edit 2 Enter the access code from your Northstar owner s card then press ENTER The first character block of the owner s message flashes 3 Enter your message using the keypad and cursor pad then press ENTER Your message can be changed only by entering your access code number and repeating the above procedure The 972 gives you three attempts at entering the correct access code after that all opera tions freeze requiring you to turn power off then turn it back on again to resume functioning Navigation options Northstar 972 You can interface the 972 directly to a variety of external equipment such as autopilots depth sounders PC s and so on The 972 s ports meet the specifications of most navigation devices providing you with a customized setup for interfacing with practically a
6. The Control key is also available when the radar overlay is in use including Alaska and Hawaii plus much of the eastern and western Canadian coast line You can display tides for today or any other date For details about TideTrack see TideTrack starting on page 137 Press STAR again to display currents in the same manner Tide and current data are available for chart regions that have been activated for use Setup functions Additional presses of the STAR key access the 972 s various setup and customization functions These functions are described beginning on page 146 Northstar 972 SAVE and Man Overboard MOB Pressing SAVE MOB always saves your present position as a waypoint Saving waypoints Press SAVE briefly to save a waypoint The new waypoint is given a name such as S002 where the letter S indicates a saved waypoint and the three digit number increases by one every time you save a waypoint You can limit the number of saved waypoints that will be stored Use the Max Saved waypoints function in the Navigation Options menu see The maximum number of saved waypo nts on page 148 When the three digit number reaches the specified maximum it wraps back to 001 and overwrites the older waypoint that has the same number Any saved waypoints that you want to keep or use in a route should be renamed before they are overwritten see Editing waypoints starting on page 69 Saving rou
7. to set the radar s Electronic Bearing Lines Range Rings etc as described in Using the Markers keys starting on page 94 On the Chart screen you can press Radar overlay to superimpose the radar image on the chart screen More information on radar starts on page 85 You can also desig nate and track MARPA targets with the Northstar 972 Northstar 972 For information on installing radar and making it operational see the Northstar Radar Installation Manual part number GMEKRADIM The echo sounder If your 972 is equipped with Northstar s optional echo sounder press SOUNDER to display the full Echo Sounder screen For the simplest operation press Auto and select the desired transducer frequency and zoom modes More information about sounder setup and operation starts on page 103 Split function The SPLIT key You can 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 a different function displayed Press SPLIT a second time to configure the combination of func tions to be displayed For two simultaneous functions just press Right to ste
8. 106 To see the echo sounding screen at any time press SOUNDER You ll see live echoes moving across the screen Depth marker Echo data and indicator o SII 250 ft Water cz l temperature 54 0 Ja box HE Color bar A Water temperature scale 42 04 912 n 0 08 307 70 38 730 w 10 QUIK Navigation Lat lon of Dist brg information vessel to waypoint You can also review old echoes using Depth Scale Auto Cruising f a A Picture es WEA Bc Frequency g 200 Frequency IT selection and Normal j indicator En Depth 25 0 1 037 Steering indicator Speed course and speed through the water Figure 6 Illustrated SOUNDER screen For details see Viewing past echoes using Northstar s exclusive SoundTrac feature SoundTrac on page 120 Reference section 7 Echo sounding Displaying the echo sounder s picture Northstar 972 Using demo mode The echo sounder can be operated in demo mode for training and familiariza tion Simulated echo data generated by the sounder will be displayed The sounder demo mode is activated by turning on the chart demo mode Using automatic mode To operate the echo sounder automati cally just press Auto All of the sounder s adjustments will be set to produce a useful picture under most conditions When you re too busy to optimize the settings manually the echo sounder can automati cally set the
9. _ _ _ gt _ o o _ _ o _ o o o a 89 Navigation options To access the 972 s navigation options press STAR until you see the Options Service Info screen Press Navigation options to access the Navi gation Options screen A number of the options accessible by pressing and holding a function key can also be accessed on the Navigation Options screen Navigation options 7 Waypoint switching Time display Coordinates Lat lon display Dist speed units Max saved waypoints Magnetic variation GPS speed averaging Lowest sat elevation Geodetic datum Owner s message AUTO 12 HOUR LAT LON XXOXX XXX MI MPH 199 TRUE 10 SECONDS 0 WGS84 MESSAGE SET IN NAV OPTIONS Return Navigation options screen Switching waypoints manually or automatically You can set waypoint switching to e automatic the 972 automatically switches to the next waypoint upon arrival at each waypoint e manual you manually switch to the next waypoint When set to automatic 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 search of a lo
10. ROUTE NAME i FSR GGI III 2 98 ROUTE 1 3 WAYPTS 2 WAYPTS 4 ROUTES STORED O WAYPTS 2 FULL Save Route setup screen Routes screen saving a route Enter the name of the route to be saved using 3 As you pass the location of each desired way the keypad and cursor pad then press point press SAVE MOB ENTER The vessels location will be saved as a waypoint 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 also access all of the unit s navigation functions except you can t edit the route you re presently saving The unit displays the message saving to route at the bottom of the Routes screen confirming the name of the route being saved To check whether you re still saving a route press WAYPTS ROUTES then Routes to Reference section 5 Creating waypoints and routes C75 Saving a route as you travel Reference Manual Revision B display the Routes screen If you re still To stop saving a route saving a route the message saving to route is displayed at the bottom of the 1 Hh ihe a ROUTES then press utes screen 2
11. SHEEP ISLAND NEPONSET NEPONSET RIVER Tide Station Selection screen Choosing a tide station from the chart You can also choose a tide station by moving the cursor to any location along the U S coastline 1 On the Tide track screen press Pick from chart 2 Press the cursor pad to select the general coastline location for which you want tide information then press ENTER to display a list of the nine tide stations closest to this cur sor location 3 Press the cursor pad to select the desired sta tion then press ENTER twice to display the tides for that station on the Tide Track screen You can also 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 tide information for today s date To display these tides for a different date you can either press the cursor pad right or left to move the date forward or backwards by one day or select a new date as follows 1 Press Pick date The first digit of the current date flashes 2 Press the cursor pad to move to the month or digit you want to change To change a digit press that key on the keypad To
12. and press ENTER In this case your initial cross track error is your distance from that leg Arrows on the leg indicate the direc tion of travel Reversing a route To follow the route in the reverse direc tion press Reverse before starting the route The direction of the route and its arrows will change from end to end Navigating along routes Northstar 972 Restarting the track line When travelling from one waypoint to another you may find you ve gone off your planned track line Maybe you avoided an obstacle or drifted slightly off course Whenever you re off track you can get back by one of two methods after passing the obstacle you can steer your vessel back to the original 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 TRACK 1 TRACK 2 Treoin lt no o q git TA A NEW TRACK LINE R OBSTACLE ORIGINAL TRACK LINE Figure 2 Restarting the course line To restart your track line from your present position press Restart and ENTER Restart is found on the Chart screen in vessel mode only and on the Naviog screen The 972 calculates a new track line from your present position directly to the next waypoint and resets yo
13. and tuning indicators in the lower left corner gain and sea clutter indicators For information about rotating and scaling the radar see Changing radar scale and rotation starting on page 90 A demo mode for 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 adar screen Using the radar s main menu keys The radar s main menu keys allow you to e turn the transmitter on or off e switch control between the radar and chart if the chart is also displayed e rotate the radar image e access the radar adjustments e access the radar markers e show more navigation information on the info bar at the bottom of the screen PAME A TUE Radar screen split 88 Reference section 6 Radar Using the radar s main menu keys Northstar 972 Transmitter control When the radar image is displayed full screen by pressing the RADAR key a menu key allows you to set the radar trans mitter to Standby or On Controlling radar In order to control the radar from the menu keys the Control key if displayed must indicate Radar If necessary press the Control key repeat edly until it indicates Radar Rotating the radar image Press Rotate repeatedly to choose the screen rotation You can choose north up course up heading up or leg up For more information see Changing radar scale and rotatio
14. changes affect the display Reference Manual Revision B Reference section 6 Radar C91 Using the Adjustment keys immediately after the cursor pad is released or e using the numeric keys on the keypad to enter the value Image adjustments Press the keys to adjust the gain sea clutter rain clutter or interference rejection When pressed the keys turns red to indicate it is active and its value can be adjusted Range Rider is a Northstar exclusive feature strongly recommended when manual settings are required The user can freely make any needed gain and clutter adjust ments and these settings are remembered for each range When the range is selected again the last used gain and clutter settings for that range is reap plied Range Rider can be selected on the Radar Options screen Gain controls the strength of all echoes and should be adjusted for a pleasing and useful image Higher values display brighter echoes Gain can be set to automatic or manual mode Press the activated Gain key to switch modes The gain setting can be entered on the keypad or by using the cursor pad Manual settings range from 0 Reference section 6 Radar 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 s
15. or use the keypad to enter the digits of the desired depth press ENTER when done 3 Press Return to go back to the Echo Sounder screen Changing the depth settings Northstar 972 Setting the picture s range The range setting adjusts the overall depth covered by the echo sounder picture from the top of its display to the bottom The range can be set automatically by pressing Auto or manually To set the range 1 Press Depth 2 Press Range 3 Press the cursor pad up or down to adjust the range or use the keypad to manually enter the desired range press ENTER when done 4 Press Return to go back to the Echo Sounder screen Viewing the seabed depth The seabed depth the bottom is displayed numerically in a black box at the left edge of the echo screen You can change the size and location of the depth box Using the MORE key Pressing the MORE key accesses the following functions e alarms described beginning on page 131 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 depth marker a dashed hori zontal line and move this marker up or dow
16. Control key rotate Chart and radar can have different to Radar the charts mode rotations automatically switches to vessel mode and rotates as described below Vessel mode Chart and radar both rotate together Chart and radar can both rotate Chart If you change the rotation of one the and radar can have different rotations other automatically changes to match __ r _ o o u_u o_o _ 8 Setting up the chart screen The Chart Options screen lets you select the Left chart type details on the Chart screen adjust the 972 s track control and control Demo Mode to simulate navigation and radar On a split screen with two charts displayed choose whether the left chart is raster vector blend or photo Press the CHART key to display the Chart screen then press and hold the CHART key to display the Chart Options screen Right chart type The following options can be set directly On a split screen with two charts displayed from this screen All units settings apply choose whether the right chart is raster system wide vector blend or photo Reference section 1 Using the Chart Screen 33 gt Reference Manual Revision B Setting up the chart screen Chart synchronization On a split screen with two charts displayed choose whether or not the two charts are synchronized so that both charts always pan together Look Ahead Follow vessel the vessel is centered in the screen L
17. Florida coast try 5X to 10X Return 3D Chart Options Reference section 2 3D maps 43 Reference Manual Revision B Configuring the screen Bottom lock When Bottom lock is activated on the main 3D screen this setting controls the height of the camera viewpoint above the seabed The camera can be positioned at 25 50 75 100 or 200 feet above the sea floor to look directly under the vessel Terrain overlay Choose Vector chart or Aerial satellite Photograph to be overlaid on the chart when Overlay is activated on the 3D screen Flying around the vessel Vessel Mode In Vessel mode press the cursor pad left or right to fly around your vessel Press it up or down to change the elevation of the viewing point Reference section 2 3D maps Thumbnail Displays a small image of the area surrounding the vessel in the lower left corner of the screen to help identify the vessel s 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 Browse Mode In Browse mode press the cursor pad up or down to move the camera position forward or back Press the cursor pad left or right to control the camera heading and thus the direction the camera
18. Over Ground COG heading HDG if a heading sensor is connected Displaying numeric data on the position screen To display your position speed course e current time day and date and time with large easily read digits press POSITION The GPS Position screen shows the following information e geodetic datum for details see Choosing a geodetic datum starting on page 149 your vessel s position in lat lon or Press POSITION a second time to see Phantom loran TDs if enabled Phantom loran TDs See Using Phantom e your vessel s present SOG and COG Loran on page 49 MGKS arti GT Tele Displaying numeric data on the position screen e Northstar 972 Press and hold POSITION to display options for this screen see Position screen options on page 47 For details about using this screen see Position coordinates starting on page 45 Going immediately to a quick waypoint The Northstar 972 can guide you directly to any point on the chart screen that you designate Point and shoot navigation 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 move the curso
19. Press the following keys to adjust the pulse length signal expansion speed and position offset Pulse Select Long for better penetration through 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 radars this feature is only available on 24VDC systems Offset Select Center to position the vessel in the center of the screen Select Look ahead to display more area in front of the vessel Presets There are two types of presets for auto matic and for manual settings Manual presets To set the manual presets first return to the Image page described above and set Gain and Sea Clutter to Manual These presets set the minimum value for the manual settings so that the manual adjustment covers the entire useful range Set the control for example gain to a mid range value such as 30 and then Reference Manual Revision B Reference section 6 Radar 93 Using the Adjustment keys adjust the gain preset to produce a good looking image Automatic presets To set the automatic presets first return to the Image page described above and
20. 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 Phantom Loran To display position coordinates as Phantom Loran TDs press the POSITION key a second time to display the Phantom Loran screen Press it again to return to lat lon coordinates Setting the Phantom Loran GRI Press Set GRI to change the GRI to be used in calculating the displayed TDs Press the cursor pad to display the available GRIs one at a time When the GRI is correct press ENTER Phantom Loran 14023 42 25847 76 SOG COG 11 5 184 4 17 AM bre Nov 23 2004 Phantom Loran screen Press TD pair several times to display the pair of TDs you want to use Reference Manual Revision B Reference section 3 Position coordinates C49 gt Using Phantom Loran Reference section 3 Position coordinates ED Using Phantom Loran Northstar 972 Reference section 4 Navigating to Waypoints Introducing waypoints 0 cece ee eee eens 52 Designating a waypoint oooooooommcoo o 52 Steering to a waypoint o ooooooooocmcoo o o 54 The course predictor line o o oooo o 57 Navigating along routes oooooooocmomm 58 Rest
21. Threat level CPA or TCPA Show on chart Press this menu key to switch to the Chart screen with the selected target centered on the screen Cd MARPA targets Northstar 972 Delete Press to delete the target from the list Target options Press to display the Target Options screen Target Options NAME 5 MINUTES THREAT ABSOLUTE ON ON 0 50 5 ON 0 10 1 MIN Target options screen The Target Options screen controls how target data is displayed and how the target alarm works Detail Choose the data that labels the target on the radar image e name of the target name and the target s COG and SOG name and the target s CPA and TCPA e 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 sorted same as the menu key on the Targets screen Bearing Choose whether bearings are displayed as relative to the vessel s heading or as absolute bearings north 000 or as a clock dial target at 4 o clock Reference Manual Revision B Reference section 6 Radar C99 MARPA targets 100 Alarm Turn the target alarm function on or off Range Set
22. To set the temperature alarm 1 Atthe Echo Sounder 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 Atthe temperature alarm window press Set upper 2 Press the cursor pad up or down to set the temperature or use the keypad to manually enter the desired temperature Set the lower temperature limit in the same way after pressing Set lower Setting inside or outside temperature limits If you set the upper and lower tempera ture limits as Inside limits the temperature alarm sounds when the measured tempera ture is within these limits If you set these limits as Outside limits the temperature alarm sounds when the measured tempera ture is outside of these limits Press Limits on the temperature alarm window to switch between the Inside and Outside settings Turning the temperature alarm on and off To turn the alarm on or off at the tempera ture alarm window press Alarms Reference Manual Revision B Reference section 7 Echo sounding 23 gt Echo sounding alarms Troubleshooting the echo sounder If there are no echoes displayed when the SOUNDER key is pressed follow this trouble shooting table to determine the cause Step De
23. arrive radius of an No 10 seconds YES WAYPT NAME active waypoint This alarm is shown only if you re navigating to a single waypoint or if you ve chosen manual waypoint switching YOU VE ENTERED Vessel has entered the warning radius of an No No No AV ID AVOID ZONE avoidance waypoint Reference Manual Revision B Reference section 9 Alarms and TideTrack 133 Alarms Table 3 972 alarms continued CONTROLLED CLEARS CLEARS ALARM MESSAGE ACTIVATED WHEN ON ALARM AFTER WHEN SCREEN TIME OUT OK NOW NAVIGATING Vessel has switched to the next leg of the No 10 seconds YES TO WAYPT NAME route YOU RE CLOSE TO Vessel is within 900 feet of entering the arrive No YES YES WAYPT NAME radius of the current waypoint 10 seconds CROSS TRACK Vessel has exceeded the off course limit set in YES No YES LIMITS EXCEEDED the cross track alarm IDEMO MODE IS You ve powered up the unit while already in No No YES ON demo mode or a networked unit has selected demo mode SJ J NO NO GPS POSITION GPS position fix is unavailable and GPS or No No YES Gps FIX Phantom loran is the chosen position source This alarm is delayed for three minutes at power up NO GPS GPS The GPS receiver may have failed No No No DATA COMMUNICATION 2 FAILURE YOU VE PASSED Vessel has passed abeam of the active No YES YES WAYPT NAME waypoint without entering th
24. available sizes off small medium large and huge Temperature graph Press Tmp graph to turn the temperature graph on or off The temperature graph displays a tempera ture scale at the left of the screen and an orange line tracing out the varying water temperature measurements superimposed on the echoes Bottom depth box Press Depth box to set the size and location of the box displaying the bottom depth white numbers on a black background Reference Manual Revision B Reference section 7 Echo sounding 119 Setting the ECHO screen data Press this key again to cycle through the available sizes small medium large and huge Press the cursor pad up and down to set the position of the box along the left edge of the screen Viewing past echoes using SoundTrac On the SoundTrac screen you can use Northstar s exclusive SoundTrac feature to look back and examine past echo data To enable SoundTrac 1 Atthe main Echo Sounder screen press the cursor pad to the left The position marker a dashed vertical line is now displayed 2 To move back to echoes that were displayed within the past few minutes continue pressing and holding the cursor 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 th
25. can purchase chart permits for any area in the world directly from Jeppesen Marine Visit www PassportOnBoard com for details on the simple procedure and to obtain the permits Or see your marine dealer Quickstart Guide Revision B Detailed chart data QUICKStald Cite Setting options Installation and setup options are available by pressing 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 select an item press Edit press the cursor pad to choose the desired setting and then press ENTER Any settings you change will apply to the entire system not just the function in use All available charts are already stored within your 972 and you can activate chart current and tide data at any time by simply obtaining and entering a permit code X 13 World Folio out of date warnings When the world folio on your system reaches 13 months old you will see a warning reminding you to update it Safe mariners always use up to date charts and information Displaying available charts Press the STAR key repeatedly until the Passport OnBoard screen appears On this scr
26. conditions To get the best performance Northstar strongly recommends installation and set up be performed by a qualified marine technician For installation procedures see the Northstar Echo Sounder Installation Manual Part Number GM491 How echo sounding works An echo sounder produces high voltage electrical pulses called pings that the transducer converts into sound waves When a sound wave hits and reflects off an object such as fish debris seaweed or the seabed the reflected sound wave an echo returns back to the transducer along an imaginary vertical line called a water column The transducer converts this echo into a tiny electrical pulse The sounder digitizes these pulses and sends them to the navigator so that echo sounding pictures of the water and seabed can be displayed and analyzed on the echo sounder screen The echo sounding system lets you see a real time cross section of what s happening underneath your vessel The 491 module automatically turns on and off as the 972 is turned on and off There is a 20 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 muc
27. devices must be connected to the replace ment unit In many situations it will be easiest to move the replacement unit to the location of the master and physically replace it General information Northstar 972 Configuring the replacement as a master To function in a network the replacement unit must be designated as 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 Reference section 10 Networking Reference Manual Revision B Restrictions Tad 144 Reference section 10 Networking Restrictions Northstar 972 Reference section 11 Setup 972 configuration oooooooooommmcor o 146 Navigation Opti0NS oooooomccoom m 147 Setting up the echosounder 151 Installing software updates 151 Diagnostics 65 55 959 SEATS ho HRS 152 Changing the time ZON ooooooooo o 153 Reference Manual Revision B 145 972 configuration 146 Most of the day to day changes you may make to the 972 s configuration are made by pressing and hold
28. echoes The clutter setting selects the echo strength that will be displayed using the bottom colors of the color bar the weaker echoes Any echoes weaker than this selection are not displayed If you select a clutter value of 5 for example all weak and moderate echoes are suppressed You might choose this setting to eliminate high levels of background noise and echoes from turbu lence or plankton A setting of 0 allows all echoes to be displayed To adjust the clutter 1 Atthe Echo Sounder screen press Picture The picture menu Northstar 972 2 Press Clutter 3 Press the cursor pad up or down to adjust the clutter or use the keypad to manually enter the desired clutter value The available set tings range from zero shows all echoes to nine suppresses many echoes 4 Press Return to go back to the Echo Sounder screen Adjusting the signal level weak echoes As with the Clutter key the Signal level key controls the appearance of low level noise in the picture Whereas clutter compresses or expands the available colors to fit the desired signal range Signal Level completely removes the weaker colors and their echoes To adjust the signal level 1 On the Echo Sounder screen press Picture 2 Press Signal level 3 Press the cursor pad up or down to remove the weaker color levels from the picture or use the keypad to manually enter the desired signal level The available settings r
29. 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 amp Shetlnd Islands AIRY 384 111 425 OSGB_WL Ordinance Survey of Great Britain 1936 Wales AIRY 370 108 434 PDLN Pico De Las Nieves Canary Islands INTL 307 92 127 PA67 Pitcairn Astrological 1967 INTL 185 165 42 PSC63 Provisional S Chilean 1963 INTL 16 196 93 PSA56_MN Provisional S American 1956 mean value INTL 288 175 376 PSA56_BO Provisional S American 1956 Bolivia INTL 270 188 388 PSA56_NC Provisional S American 1956 N Chile INTL 270 183 390 PSA56_SC Provisional S American 1956 S Chile INTL 305 243 442 PSA56_CO Provisional S American 1956 Columbia INTL 282 169 371 PSA56_EC Provisional S American 1956 Ecuador INTL 278 171 367 PSA56_GY Provisional S American 1956 Guyana INTL 298 159 369 PSA56_PR Provisional S American 1956 Peru INTL 279 175 379 PSA56_VN Provisional S American 1956 Venezuela INTL 295 173 371 PRICO Puerto Rico CL1866 11 72 101 QUAT Qatar National INTL 128 283 22 QORN Qornoq Greenland INTL 164 138 189 REUN Reunion Indian Ocean INTL 94 948 1262 158 Reference section 11 Appendix A Datum list Changing the time zone Northstar 972
30. of contents at the beginning of each chapter to quickly locate a topic you need help with It s best to read this manual with the 972 set up and running so you can try out the various functions and see the results Conventions This manual uses certain conventions to provide a consistent means of recognizing specific information as follows Getting Started 2 ES Welcome to the Northstar 972 Northstar 972 A is the universal caution symbol for caution and warning information related to your personal safety or possible damage to the system The CAUTION and WARNING notes contain critical information please read them The phrase Press a key means push briefly and release unless otherwise specified Press and Hold means to hold the key until the desired result occurs Networking 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 necessary One display unit is designated as the master and all others as slaves The only restrictions on networking are the following e there must be one and only one master unit operating in a network e Text writt
31. options 0 eee ee 47 Displaying numeric data on the chart screen 19 Viewing GPS satellite Status 48 Displaying numeric data on the position screen 20 Using Phantom Loran 000 cece eee eee 49 Going immediately to a quick waypoint 21 pare a Re Os e E y 2 Navigating to Waypoints lt 020 os ce a The echo Sounder aon as E 23 Introducing waypoints A A A A 22 Split functio m title 23 Designating a waypoint A A a ae ae The STAR key alarms TideTrack and setup 24 Steering to a waypoint na 54 SAVE and Man Overboard MOB 25 The course predictor line o 57 Navigating along rOUteS oooo ooooocoooo 58 Restarting the track line o ooooooo o o 59 The NAVLOG screen o ooooococononoom oo 60 5 Creating waypoints and routes 63 Displaying WaypoiNtS o oooooccooooccocoo 64 Creating new waypoints o o oooooccooo 65 Creating avoidance area waypoints 68 Editing WaypoiNtS oooccocoocconoccooo 69 Introducing routes 0 eee eee eee eee 71 Creating a route from the chart 72 Creating routes from a list of waypoints 73 Saving a route as you traVel 74 Editing a route 00 eee eee eee eee 76 Transferring waypoints routes to other units 80 Transferring waypoints to and from a PC
32. see Alarms starting on page 132 Using the chart Your vessel is normally shown in the center of the chart screen If your vessel is moving the symbol will point in the direc tion of your Course Over Ground COG If your vessel isn t moving the 972 can t determine your COG so the direction of the vessel symbol won t mean anything To zoom in and see more details about your position press the IN key To zoom out more area and less detail press OUT Northstar 972 Press the cursor pad to display the red cursor and designate waypoints O or move the chart to a different area Press Vessel to recenter the chart on your vessel Vesse Chart area GPS Status Info AA Cursor Chart screen Menu keys The GPS status is shown on the right side of the screen e GPS navigating with normal GPS signals WAAS navigation enhanced with high accuracy WAAS signals DEMO running in simulation mode Chart plotter functions The menu keys at the right of the chart screen perform the following navigation functions not all keys are shown all the time Quickstart Guide Revision B e display any available overlays such as radar e rotate the chart to north up course up leg up or heading up heading up requires an optional heading sensor e return from Browse mode cursor on screen to Vessel mode vessel centered e show detailed information about the dis
33. seein a ie esata alo OE oases 137 10 Networking ccc cece cece eee eee 141 General information 2 20008 142 Restrictions 0 ee ee eee 142 VD SQtup ici dio 145 972 configuration cee eee ee eee ee 146 Navigation options 2 00 eee eee 147 Changing your port settings 151 Setting up the echosounder 151 Installing software updates 151 DiaSNOStiGs oasis ee die dad 152 Changing the time zone 06 153 Appendix A Datum list 155 Appendix B Specifications 161 Getting Started Welcome to the Northstar 972 o 2 Using this manual o ooooooocconcoconm m 2 Maintaining the 972 ooooooocommmmom o 4 Interfacing the 972 ccc c cece eee cece eee eens 4 Technical SuppOrt cece cece eee ee eee eee 5 Electronic Charts and the 972 oooo oo 6 Purchasing chartS cs cece eee eee eee eee eens 7 This chapter introduces this manual and explains a few things you should know to keep your Northstar 972 in top operating condition Reference Manual Revision B i gt Welcome to the Northstar 972 The 972 has several requirements that must be met to ensure safe and proper operation Installation and interfac ing of the 972 should be handled by a mari
34. units When zoom is in use only a single frequency is displayed Unzoomed echoes are on the right and the same frequency is shown magnified on the left You cannot zoom out to a scale that shows more water than the original picture For example if the original picture is set to a scale of 50 feet the only zoom scales available will be 15 feet and 30 feet Reference Manual Revision B Reference section 7 Echo sounding 109 Zooming in and out 110 Bottom zoom When you select bottom zoom the contour of the bottom is magnified clearly displaying canyon edges and echoes near the seabed The sounder automatically locates the seabed and displays it on the lower left side of the screen normal echoes are displayed on the right side 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 100 Depth 42 26 306 n 0 00 162 as i 71 25 817 w To mos 7 EE Bottom zoom Reference section 7 Echo sounding Bottom lock zoom Bottom lock zoom is similar to bottom zoom except the magnified sea bottom is flattened out and displayed on the left side of the screen at the lower edge You can see any fish that are swimming near the bottom 0 2 Ad Pict
35. will move when the cursor pad is pressed up or down Use the menu keys to move the camera position up or down Flying around the vessel Northstar 972 lt gt Reference section 3 Position coordinates Displaying position COG and speed 46 Using GPS oceans tartans x Sew stew auite Sowale deta 46 Position screen OptionS 0 cece eee ee eens 47 Viewing GPS satellite Status 48 Using Phantom Loran o oooocoococomm 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 Reference Manual Revision B C45 Displaying position COG and speed The 972 uses a high performance GPS receiver as its source of position data with accuracy enhanced by the WAAS satellite system The 972 can display position as latitude longitude coordinates or as loran C coordinates calculated from the GPS data Using GPS Position Course Over Ground COG Speed Over Ground SOG as well as time and date are all calculated from the received satellite data To display this position information numerically press the POSITION key 4421 45 N 68 09 09 When you re using WAAS signals your position coordinates as calculated by the 972 may actually exceed the accuracy of some charts Acquiring SOG So A m o 0 0 018 T
36. you ll have time The avoidance alarm is only an extra safety to respond by turning or stopping after you feature to help alert you to possible hazards It hear the alarm and to allow for the typical doesn t replace local knowledge proper use of accuracy of the navigation source in use charts the person on watch or any other aspects of good seamanship that are required to safely navigate Setting the avoidance area alarm The 972 will sound an audio alarm when To make any waypoint act as an avoidance you enter an avoidance area provided point enter a number in the Warn radius you ve turned on the audio alarm See box at the bottom of the New Waypoint or Edit Alarm audio on page 136 a eo Editing waypoints You can change any information about an 2 Select the waypoint by highlighting it with the existing waypoint except for the type of cursor pad 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 Waypoints If necessary press Next view to display the waypoint screen you want Reference section 5 Creating waypoints and routes 69 Reference Manual Revision B Editing waypoints 70 6 K da m Waypoint From 0 41 Waypoint WH selected 3 To edit the waypoint press Edit On the Waypoints chart screen the key is la
37. you ll receive a Reference Manual Revision B Editing a route GD warning as this might result in an unsafe path You cannot erase a waypoint that is Transferring waypoints routes to other units Networked 972 s automatically share data This section only applies to transferring data to or from the older Northstar units The 972 s import export function lets you transfer all waypoints and routes between a 972 and a Northstar 941 951 952 957 958 or 60001 NOTE To import or export waypoints and routes to and from older Northstar units these older units must contain software version 3 12 or higher To obtain any necessary upgrades please see your authorized Northstar dealer You can perform the transfer from either unit The other unit can remain in normal operation including the displaying of different screens as long as you do not edit any of its waypoints or routes 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 Reference section 5 Creating waypoints and routes in a route or the navplan it must be removed from the route first on an older unit to perform the transfer the instructions may be slightly different Be sure to choose the right function for w
38. 0 123 20 220 ADI SE ADINDAN Senegal CL1880 128 18 224 ADI SU ADINDAN Sudan CL1880 161 14 205 AFG AFGOOYE Somalia KRASS 43 163 45 AIN AIN EL ABD 1970 Bahrain Island INTL 150 251 2 ANA ANNA 1 ASTRO 1965 Cocos Islands AUSTR 491 22 435 ARC50_MN ARC 1950 mean value CL1880 143 90 294 ARC50_B ARC 1950 Botswana CL1880 138 105 289 ARC50_L ARC 1950 Lesotho CL1880 125 108 295 ARC50_M ARC 1950 Malawi CL1880 161 73 317 ARC50_S ARC 1950 Swaziland CL1880 134 105 295 ARC50_ZR ARC 1950 Zaire CL1880 169 19 278 ARC50_ZM ARC 1950 Zambia CL1880 147 74 283 ARC50_ZB ARC 1950 Zimbabwe CL1880 142 96 293 ARC60_MN ARC 1960 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 48 148 AG84 Australian Geodetic 1984 AUSTR 134 48 149 BEL Bellevue IGN INTL 127 769 472 BER Bermuda 1957 CL1866 73 213 296 BOG Bogota Observatory Colombia INTL 307 304 318 CMI Campo Inchauspe INTL 148 136 90 CA66 Canton Astro 1966 INTL 298 304 375 CAPE Cape South Africa CL1880 136 108 292 CC_MN Cape Canaveral mean value CL1866 2 150 181 CARTH Carthage CL18
39. 0 dB 200 kHz calibration 00 dB Speed sensor NO Speed calibration 00 Temperature sensor NO Temperature calibration 0 0 F Echo Sounder Setup screen To display the echo sounder setup screen press the STAR key to display the Options Service Info screen and then press Sounder Options Or Reference section 7 Echo sounding From 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 during installation and should not be changed Depth units You can change the depth units to feet meters or fathoms 1 Press the Cursor pad up or down to highlight the Depth Units option 2 Press Edit 3 Press the Cursor pad up or down to display the desired units 4 Press ENTER Echo Sounder setup Northstar 972 The temperature graph s units and scale You can change the highest and lowest water temperatures that will be displayed on the temperature graph settings can range from 32 F to 100 F 1 Press the Cursor pad up or down to highlight the temperature scale option 2 Press Edit 3 Press the Cursor pad up or down to highlight C or
40. 131 Reference Manual Revision B 132 Alarms Alarms automatically alert you to certain situations for example when you re approaching a waypoint or entering an avoidance area or when you ve lost position fixes The 972 displays an alarm in two ways e as an alarm icon flashing on the display screen For a detailed explanation of these alarm icons see Table 3 on page 133 e as an alarm message on the Alarms screen Also whenever an alarm icon appears on any screen an audible alarm will sound if you ve turned on the alarm audio Each alarm has a distinctive beep that s based 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 Reference section 9 Alarms and TideTrack Recent Alarms NO GPS POSITION FIX 9 15 AM Today Alarm audio ON Anchor alarm OFF 0 10 Cross track alarm ON 00 10 Arrive radius WAAS alarm ON Alarm screen showing No GPS alarm New alarm messages The word NEW in the Recent Alarms box tells you that the alarm shown hasn t been acknowledged or cleared yet see Clearing alarms below There may also be other uncleared alarms that you should acknowledge by clearing Recent alarm messages The 972 keeps a record of
41. 14 You can adjust the appearance of echoes in five different ways e gain for high intensity echoes e clutter for low intensity echoes e noise limiter for interference e hue to choose colors and white level e signal level to remove weak echoes Gain and clutter changes are applied only to new echoes as they appear on the right side of the screen earlier echoes are not affected Adjusting the gain strong echoes The gain setting selects the echo strengths that will be displayed using the topmost color in the color bar at the left edge of the screen the strongest echoes Any echoes stronger than this selection will use the same color and no detail can be distinguished The gain is usually set so that strong seabed echoes are displayed in brown the strongest level The gain can be also be set automatically by pressing Auto This provides an excel lent picture under most conditions and allows the sounder to reliably detect the seabed depth Reference section 7 Echo sounding Gain is normally adjusted together with clutter as described on the next page To adjust the gain 1 Atthe 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 desired gain value The available settings range from zero minimum to 75 maximum 4 Press Return to go back to the Echo Sounder screen Adjusting the clutter weak
42. 200 kHz The advantages and disadvantages of each frequency are shown below Table 2 50 kHz vs 200 kHz 50 kHz 200 kHz Longer wavelength goes deeper but with somewhat lower resolution Shorter wavelength provides a sharper picture but can t go as deep Less resolution is better at finding big fish but may miss the bait fish Finer resolution is better at finding small fish baitfish and subtle bottom details Wider beam is good for seeing fish not directly beneath the boat Narrower beam is very focused Reduces the influence of a rough sea Picture Frequeno pim 42 26 306 x 71 25 817 w 50 and 200kHz displayed There are two reasons why you might want to operate with your preferred frequency on the right side of the screen e the zoom function magnifies the frequency on the right side e when adjusting the picture you can see You can choose from four settings for the the effect of changes on the right side transducer frequency To choose the transducer frequency press Frequency until the desired combination is shown 50 kHz displayed on a full screen e 200 kHz displayed on a full screen 50 kHz on the left half of the screen and 200 on the right e 200 kHz on the left half of the screen and 50 on the right When you change the frequency echoes already on the screen don t change they just move off the screen as they are replaced by
43. 80 263 6 431 CHAT Chatham 1971 S W Pac Isl INTL 175 38 113 CHUA Chua Astro INTL 134 229 29 CORR Corrego Allegre INTL 206 172 6 DJAK Djakarta Batavia B1841 377 681 50 DOS68 DOS 1968 S W Pac Isl INTL 230 199 752 EI67 Easter Island 1967 INTL 211 147 111 EUR50_MN European 1950 mean value INTL 87 98 121 156 Reference section 11 Appendix A Datum list Changing the time zone Northstar 972 Datum ID Datum name ELLIPSOID delta x delta y delta z EUR50_WE European 1950 Western Europe INTL 87 96 120 EUR50_CY European 1950 Cyprus INTL 104 101 140 EUR50_EG European 1950 Egypt INTL 130 117 151 EUR50_GB European 1950 England INTL 86 96 120 EUR50_GR European 1950 Greece INTL 84 95 130 EUR50_IR European 1950 Iran INTL 117 132 164 EUR50_SA European 1950 Sardinia INTL 97 103 120 EUR50_SI European 1950 Sicily INTL 97 88 135 EUR50_NF European 1950 Norway and Finland INTL 87 95 120 EUR50_PS European 1950 Portugal and Spain INTL 88 109 122 EUR79 European 1979 INTL 86 98 119 GAND Gandajika Base Indian Ocean INTL 133 321 50 GD49 Geodetic Datum 1949 INTL 84 22 209 GUAM63 Guam 1963 CL1866 100 248 259 GUX Gux 1 Astro INTL 252 209 751 HJOR Hjorsey 1955 Iceland INTL 73 46 86 HK Hong Kong 1963 INTL 156 271 189 IND_TV Indian Thailand Vie
44. 9 629373 Enter Passport OnBoard chart permits here 00000 00000 00000 00000 Reference Manual Revision B Getting Started 7 Purchasing charts Getting Started Purchasing charts Northstar 972 Northstar 972 Quickstart Guide Turning the 972 on and Off oooooo o 11 Displaying the chart screen o o ooooooo o 14 Using demo mode cece cece eee cece eens 19 Displaying numeric data on the chart screen 19 Displaying numeric data on the position screen 20 Going immediately to a quick waypoint 21 A 5 4065s See ce ae eae en EE OEE 22 The echo sounder oooocooococcoccroccrr cs 23 Split fUMCHON Gs ooo cia aa ede eda 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 as necessary to answer any questions you may have el ret i O Quickstart Guide Revision B Review YU C AS La fl ul NORTHSTAR gt lt 972 lt P 00 0000 Soft Keys STAR Key Figure 1 972 controls Power Key Function Keys fe E 7 a 10 gt QUIGKS fl Ciela Northstar 972 Turning the 972 on and off CAUTIO
45. A route is a sequence of waypoints that you designate Routes can be used to perform the following functions e as guidance through a channel or harbor e as a quick and efficient path to good fishing spots e as the best way around a permanent obstacle such as an island e as guidance on a single long voyage with various legs to food and fuel stops along the way or to other temporary destinations 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 e 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 Reference section 5 Creating waypoints and routes line from your present position to the waypoint e start along any leg of the route cross track distance starts at your distance from the leg See Navigating along routes beginning on page 58 You can create a route in three different ways e use the Chart screen to choose a sequence of waypoints e use a waypoint list to choose a sequence of waypoints e save a route s waypoints as you travel Route and waypoint capacity A route can have up to 35 waypoints You can store as many as 500 routes in the 972 but the maximum number depends on the number of stored waypoints Each route takes up space that otherwise coul
46. AYPTS 2 FULL 0012 41 31 201 n ES Vie 70 40 826 w 0013 41 31 158 n 03 31PM TODAY 70 41 089 w 0011 41 31 064 n 03 31PM em 70 40 519 w 0014 41 31 232 N 03 32PM TODAY 70 41 442 w WH 41 31 107 n 01 51PM TODAY 70 41 443 w 0015 41 31 482 n 03 32PM TODAY 70 41 559 w Local Waypoints screen 3 Press New to display the New Waypoint screen _ New Waypoint __ VESSEL 0005 0000 00 New Waypoint screen 4 Enter a waypoint name and optional descrip tion Press several times if 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 e For lat lon the N S E W key lets you manually change the hemisphere if necessary 66 Reference section 5 Creating waypoints and routes Creating new waypoints Northstar 972 e For loran TDs enter any valid pair of TDs and the GRI for the pair After entering the GRI check the name of the GRI that s automatically displayed to ensure its correct For distance and bearing from your present position leave the From point set to VESSEL and enter the bearing and the distance to the d
47. C83 Reference section 5 Creating waypoints and routes 84 Transferring waypoints to and from a PC Northstar 972 EDI Reference section 6 Radar How radar works cece cece cece een eens 87 Turning the radar transmitter on and off 87 Displaying Fadar oooooococoocconoconom 87 Using the radar s main menu keys 88 Overlaying radar on the chart 90 Changing radar scale and rotation 90 A A weedeat eed anaes nies ae 91 Using the Adjustment keyS o ooooooo 91 Using the Markers keyS o oooocooomcmommo 94 Radar CUESON o id Se ae aa ees Sen es 96 MARPA targets o oooooooccccoccccocoommmos 96 This chapter first describes radar briefly and then explains how to display control and adjust the 972 s radar Reference Manual Revision B ED Reference section 6 Radar ED Transferring waypoints to and from a PC Northstar 972 How radar works The word radar is an acronym for Radio Detecting and Ranging A radio trans mitter sends out a very short microwave pulse and then a receiver listens for that signal s echo when it s bounced back from a target in its path Targets which may be other boats or ships navigational markers flocks of birds or land masses are displayed on the 972 s screen By knowing Turning t
48. CTIVATED WHEN ON ALARM AFTER WHEN ICON SCREEN TIME OUT OK NO HEADING DATA The 972 is not receiving data from the heading No No No Alarm audio You can turn the alarm audio on so that the 972 will beep when any alarm occurs or you can turn the audio off completely so that you ll only see alarm icons and messages displayed on the screen 1 On the alarm screen press the cursor pad to select Alarm Audio then press Edit alarm 2 Press the cursor pad to display OFF or ON then press ENTER Anchor alarm The anchor alarm will signal when your vessel moves a certain distance from the position of your vessel when you pressed the Drop anchor key You can turn the anchor alarm On or off and set the distance that you can drift without triggering the alarm The default setting is 0 20 nautical miles about 1200 feet You can set the anchor alarm to as little as 0 01 nm but be sure to allow for 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 alarm 4 Press the cursor pad to turn the alarm to on 5 Set the distance your vessel can normally be expect
49. Designating a waypoint on the chart screen You can go to a waypoint by moving the cursor to that point on the chart either selecting an existing waypoint on the Chart screen or designating any other location on the Chart screen 1 On the Chart screen move the cursor pad to choose an existing waypoint or nav aid or any unmarked chart position 2 Press Go to waypt If you didn t choose a waypoint the key will read Go to cursor or Go to navaid 3 Press ENTER If you selected an existing waypoint the 972 begins guiding you directly to it 62 gt Reference section 4 Navigating to Waypoints Introducing waypoints Northstar 972 If you chose a new cursor location the 972 makes a new waypoint named QUIK and guides you directly to it Repeating this same procedure will create a new QUIK waypoint that overwrites the existing one therefore you may want to save the QUIK waypoint as a regular waypoint by renam ing it See Editing waypoints starting on page 69 Entering a waypoint s position coordinates You can use the keypad to enter waypoint coordinates and then go to that waypoint 1 Press WAYPTS ROUTES then press Quick waypoint to display the Quick Waypoint screen Quick Waypoint QUIK gt os QUICK WAYPOINT Symbol Position 42 13 454 n tn 070 24 010 w N S E W Cancel Quik waypoint screen 2 If necessary select the type of coordinates you want to enter b
50. F as desired 4 To change the endpoints of the scale press the CURSOR PAD to the right 5 Enter two digits for the lower temperature limit using the keypad 6 Enter two digits for the upper limit 7 Press ENTER Transducer calibrations These functions are set during installation and should not be changed unless they are known 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 remove all references to temperature and speed from all the screens Highlight the appropriate line and press Edit to change the option Speed calibration is entered as a percentage from 99 to 99 to make the speed read lower or higher than the uncalibrated value NOTE You must enable the speed setting under the Data menu on the Echo Sounder screen Temperature is calibrated by entering the temperature error as a number of degrees from 9 9 to 9 9 This offset is added to the uncalibrated temperature before it is displayed or graphed Reference Manual Revision B Reference section 7 Echo sounding 113 Echo Sounder setup The picture menu 1
51. 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 for each input by pressing and holding VIDEO to display the Video Options screen Reference section 8 Video Pausing video You can pause or freeze the current video image by pressing Stream to select Pause Press Stream again to toggle back to Running to get back to real time video playback Video options To access the video options press and hold VIDEO Aspect mode You can choose how the image fills the screen e Crop cuts off the edges to make the image fill the screen Video sources Northstar 972 Stretch makes the image fill the 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 Reference section 8 Video 129 Reference Manual Revision B Displaying video 130 Reference section 8 Video Displaying video Northstar 972 Reference section 9 Alarms and TideTrack ALANIS Loi a ll 132 Td eee sce Oh aswel el eee 137
52. K WAYPOINT Stop Reverse Return Navlog screen Press the cursor pad to scan the waypoints in the list To display either a waypoint s description or its estimated time of arrival ETA press the Display menu key For waypoints you haven t passed yet the times of arrival shown are estimates based on your current speed For waypoints you ve already passed actual times of arrival are shown The 972 updates this information as you travel cP The NAVLOG screen Northstar 972 NOTE Estimated times are just estimates which may be inaccurate if your SOG changes either intentionally or by passing through varying currents Your ETA at the last waypoint your desti nation is shown at the top of the screen A red arrow connecting the right ends of two waypoint boxes indicates you ve completed that leg of the trip Changing your trip Adding waypoints to your trip You can add waypoints to your trip at any time 1 On the Naviog screen press the Append waypt menu key to display a chart view of the trip waypoints on the Append Waypt screen 2 Press the cursor pad to select the desired waypoint 3 Press the Select waypt menu key then press the ENTER key to add the waypoint to the nav log NOTE Any waypoints added in this manner aren t permanently added 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 rou
53. MARPA targets The Targets screen To display information about the targets press the Control key until you see Targets in the blue tab Then press the Targets menu key Targets MR1 MR2 MR3 089 084 0 745 25 0 0 27 n NOW SS POS 26 05 755 n iis 80 06 383 w Target options Return The tracked target names are shown in the left panel Use the cursor pad to select a particular target Information about the selected target is shown in the right panel The following information is shown e CRS the direction of travel of the target e BRG the direction from your vessel to the target e RNG the distance from your vessel to the target Reference section 6 Radar SPD the speed of the target e CPA the calculated Closest Point of Approach how close the target might come to your vessel based on current courses and speeds e TCPA Time to Closest Point of Approach how soon the target will reach the CPA e 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 same target selected at all times choose Select by Target To keep the same position in the list selected at all times for example the closest target choose Select by Position Sort by The target list may be shown in order of target distance range
54. N A Use caution when navi gating with electronic charts Although every effort has been made to ensure that the data the 972 uses is as close as possible to paper charts errors and omissions are inevitable The captain is responsible for cross checking the 972 against other sources of navigation data Turning the 972 on To turn the 972 on gently and briefly press the PWR key See Figure 1 on page 10 fora picture of the controls During the startup sequence the 972 beeps and displays its start up screen and then performs a series of self tests to check its critical components and functions Any startup issues are indicated by a double asterisk on the screen Next a message warns against relying on the 972 chart cartography as the only means of safe navigation Acknowledge the 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 function at any time just by increasing the brightness Quickstart Guide Revision B Turning the 972 on and off Oiler Cite warning message by pressing the CHART key Now you re ready to get underway with your 972 If this 972 was recently used at or near its present location it will usually be ready to navigate with
55. Northstar 972 Quickstart Guide AS Manual Attention Installers This processor module must be handled with reasonable care and protected from the following e Moisture Do not mount this processor in unprotected areas of the vessel having moisture e Vibration and shock Use of the supplied shock vibration mount is a mandatory part of the installation Only mount this unit in a horizontal position with adequate space for ventilation maintenance and for field service removal Rough handling during removal or installation can cause premature failure of internal components Radar interference Do not install the processor or cabling 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 moisture vibration and radar interference are not covered by warranty Refer to the installation manual P N GM972IM for additional installation troubleshooting and warranty information For advice regarding equipment placement please consult with an authorized Northstar Servicing Dealer before beginning the installation To locate a Northstar Servicing Dealer near you call 978 897 6600 Contents Getting Started a aio
56. Press Stop save and ENTER twice If the route becomes full 35 waypoints you may want to stop saving to this route and start a second one Editing a route You can make changes to a route graphi cally using the Chart screen or you can ROUTES 2 FULL change it using a list of its waypoints fs gt FSR You can make any of the following 8 WAYPTS changes GGI III 3 WAYPTS e change the route name ROUTE 1 e 2 WAYPTS e add new or existing waypoints to the beginning middle or end of the route isli pm remove waypoints from the route e erase the entire route To edit a route 1 Press WAYPTS ROUTES then press Routes screen Routes to display the Routes screen 2 Press the cursor pad to select the route you want to change then press Edit The name of the route is displayed on the Edit Route screen 76 Reference section 5 Creating waypoints and routes Editing a route Northstar 972 Edit Route ROUTE NAME ENTRANCE 1 ROUTE STORED 39 FULL _ EA 72 24 563 w Edit Route screen Editing a route on the chart 3 If you want to change the route s name do so The direction of the route is indicated by a now series of small arrows in each leg and the 4 Press Use to change from chart based edit cursor isiin the middle ar the sereen ing to list based editing Editing from the chart is described below 5 Press ENTER editing from a list of waypoints is described You can alterna
57. ROUTES 2 Press Distance and Bearing The 972 displays a symbol at the cursor position Reference section 1 Using the Chart Screen 1 While on the Chart screen press and hold the CHART key to display the Chart Options screen 2 Select Predictor using the cursor pad Press 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 3 Press the cursor pad to move the cursor to the desired location The distance and bearing from your posi tion to the cursor is displayed in the info bar 4 To measure the distance and bearing from the cursor to another point press Set new X A new X or starting point is displayed at that location As you move the cursor the distance and bearing from the X point to the cursor s position are displayed in the info bar Ed Using the course predictor line Northstar 972 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 Reference section 1 Using the Chart Screen Reference Manual Revision B Using the distance and bearing calculator GD Reference section 1 Using the Chart Screen 40 gt Using the distance and bearing calculator N
58. Repeat Steps 6 7 and 8 until your new route is complete Reference section 5 Creating waypoints and routes Reference Manual Revision B Creating routes from a list of waypoints C73 To see or edit the route on the Chart Return to go back to the new route entry screen at any time press CHART Press screen Saving a route as you travel To make a record of a trip that you may want to repeat later you can save Routes aru waypoints into a route as you travel by G pressing the SAVE MOB key every time you gt bie B WAYPTS pass a point you want to store in the route cc Tit The save route function makes this a very a anaes simple process First you tell the 972 that crescent Re you want to save a route as you travel me then you press SAVE MOB as you pass each O WAYPTS 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 screen Routes to display the Routes screen 2 Press the Save menu key to set up saving a route automatically The Save Route screen is displayed ask ing you to enter the name of the new route to be saved If you use the name of any existing route waypoints will be added to the end of that route 74 Reference section 5 Creating waypoints and routes Saving a route as you travel Northstar 972 Routes 4 ROUTES 2 FULL gt FSR 8 WAYPTS
59. S84 WGS 1984 WGS 0 0 0 ZAND Zanderij S America INTL 265 120 358 Reference Manual Revision B Reference section 11 Appendix A Datum list 159 Changing the time zone 160 Reference section 11 Appendix A Datum list Changing the time zone Northstar 972 Appendix B Specifications GENERAL Complete system consists of control head and remote processor box Course up north up leg up Split screens CHARTING Jeppesen Marine Passport OnBoard e Jeppesen Marine Raster charts 3 D Bathymetric charts of U S waters Satellite photos of U S waters e Vector 3 D overlay Shaded relief Vector photo blend US 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 161 Reference Manual Revision B POSITION DATA Navigate to coordinates waypoints and along routes e Save current position Follow stored routes forward or Lat Lon 158 datums or Loran TDs e GPS status screens backward STEER SCREENS Large graphical presentation OTHER FUNCTIONS Cross track error traditional and 3 D Anchor watch e Waypoint name position e Avoidance alarm Distance and bearing to waypoint GPS clock Speed Course Over Ground Tidetrack tide information SOG COG e Curr
60. TE 25 Ins so secs ETA aaan 2D Steer screen approaching the track line The direction in which your vessel symbol is pointing tells you the direction you re actually travelling your COG This direc tion may not be the same as your heading if any current or wind is present When the 972 sequences to a new leg of a route your vessel symbol will immediately show your COG relative to the new leg Reference Manual Revision B Steering to a waypoint 55 A gt Y gt Y Restart ERN ER Travel time ETE 25 mins so secs ETA Toar 2D Steer screen vessel on track The distance and bearing to the waypoint your Speed Over Ground SOG and Course Over Ground COG are displayed in the upper half of the screen You can display additional information in the center of the 2D Steer screen by pressing More info to cycle through the three choices Travel Time Estimated Time Enroute ETE to the waypoint and Estimated Time and Date of Arrival ETA e Waypoint Waypoint name description and position coordinates SOA Speed of Advance and graphical heading correction Reference section 4 Navigating to Waypoints 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 locations of any other nearby waypoints ahead of your vessel You
61. Technical support Northstar products are manufactured and serviced by BNT Marine Electronics If you need technical support or have any other questions after you ve followed the instructions in this manual you can contact the factory as follows by Telephone 978 897 6600 or 800 628 4487 by E mail Service service Obntmarine com Sales sales bntmarine com by Fax Service 978 897 1595 Sales 978 897 7241 by U S mail Northstar 30 Sudbury Road Acton MA 01720 USA Additional information is available at Northstar s website www NorthstarNav com Hearing from you Your feedback is important and helps ensure that this manual 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 When calling be sure to have your 972 serial number and software revision avail able In describing a problem be as complete and accurate as possible Before returning the 972 for repair you may want to save your waypoints and routes If the unit is properly networked to another 972 display a copy of your waypoints and routes is already saved in the other unit You can also transfe
62. access the bottom alarm 1 Atthe Echo Sounder screen press More 2 Press Alarms 3 Press Bottom alarm Now you can set the depth at which you want to be notified about a shallow bottom Setting the bottom level To set the bottom level at the bottom alarm window press the cursor pad up or down to set the depth or use the keypad to manually enter the desired depth press ENTER when done NOTE The sounder s depth indicator reflects the depth below your vessel s transducer not below the keel Ask your installer for the exact distance between your transducer and your keel This value must then always be manually added to the sounder s Echo sounding alarms Northstar 972 depth indicator or entered into the transducer s depth setting on the Sounder Options screen for a reading that doesn t need to be corrected Turning the bottom alarm on and off To turn the alarm on or off at the bottom alarm window press Alarms Setting the temperature alarm When the temperature alarm is set an alarm sounds if the echo sounder detects that the water temperature has either risen above or dropped below the limit you ve set Orange markers indicate the tempera ture limits This alarm isn t present unless a tempera ture sensor is installed and configured When the temperature alarm sounds the flashing alarm icon THERM is displayed This message clears automatically after 20 seconds and the alarm is reset
63. ae 1 Welcome to the Northstar 972 2 Reference Sections Usingsthisimanualierm ID Peri 2 1 Using the Chart Screen o 27 Networking the 972 5 ee ee sence es 3 Using electronic charts 0 0 0 00 cece eee ees 28 Interfacingsthe 972sn were errr ener ee er rnc an 4 Zooming in and out it 28 Maintaining the 972 se eee o 4 Using the cursor on the chart screen 29 Technical support O a A A cs Seo da ao 5 Comparing vessel and browse modes 29 Electronic Charts and the 972 6 Rotating the chart 0 0 cece cece eee ees 31 Purchasing COSA SO 7 Setting up the chart screen 33 Using the course predictor line 38 Quickstart Guide Using the distance and bearing calculator 38 Northstar 972 Quickstart Guide rta ans Ce Cita Pe Turning the 972 on and Off 11 Rosie Rae See a AIN Pw oy z gt Configuring the screen ooooocccccooooo 43 Introducing the display screen 11 Introducing ANECON S 12 A E ESRR is a Aea 0 Detailedichartdata aaa e dale 13 3 Position coordinates eee eae 45 Displaying the chart screen 14 Displaying position COG and speed 46 Displaying the chart screen 14 USO EGP ake keer ee eee A 46 USAN MA rr rrr err reir ra 19 Position screen
64. aids on the Chart screen represent a variety of standard aids to navigation used on coastal and inland waterways throughout 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 near the nav aid along with the distance and bearing from your vessel to the nav aid Zooming in and out To get a closer look at the chart area around your vessel or around the cursor press the IN key to zoom in To see a wider area press OUT to zoom out Each press of IN or OUT approximately halves or doubles the chart scale Reference section 1 Using the Chart Screen NOTE Whenever the radar overlay is turned on and Auto Range is turned on the scales of the chart and the radar are locked together so that the images will line up If you change the scale of one the scale of the other changes automatically Ed Using electronic charts Northstar 972 Using the cursor on the chart screen Pressing the cursor pad displays the red cursor symbol on the Chart O screen Further pressing of the cursor pad moves the cursor across the screen If you have trouble find
65. amera down in Browse mode moves the camera viewpoint lower More info steps through the available info bars at the bottom of the screen Alarms QUICK The Northstar 972 alerts you to conditions that may require attention Some alerts are strictly informative such as nearing a waypoint and some warn of conditions t UT el gt Chart options such as loss of navigation signals The unit alerts you with a beeping sound and a flashing symbol at the right edge of the screen Many alarms automatically clear Northstar 972 themselves after a few seconds Others remain flashing until you press a key on the Alarm screen or until the condition You can use demo mode to simulate a stationary position or simulate navigating to a location you select on the Chart screen Demo mode is useful for training and could be used for dead reckoning in the event that GPS signals should ever fail To access the demo control screen display the Chart screen and press and hold CHART to display the chart options Then press Demo control To place your vessel at a simulated position and enter demo mode press the cursor pad to move the cursor to the desired position on the chart 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 Displaying numeric data on the chart screen To display numeric information directly on the chart screen pres
66. an alarm sounds if an echo returns from either inside or outside specific upper and lower limits you ve set You can selectively limit the size of the fish you want to be notified about by adjusting the alarm s echo strength level Using this feature you ll only be alerted to the presence of fish that meet your minimum 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 cally after 20 seconds and the alarm is rearmed To access the fish alarm settings 1 Atthe Echo Sounder screen press More 2 Press Alarms 3 Press Fish alarm Setting the alarm s echo strength level To set the fish alarm s minimum echo strength level 1 Atthe fish alarm window press Level 2 Press the cursor pad up or down to set the echo strength level from 1 to 15 Echoes that are stronger than the selected level will cause an alarm Setting the upper and lower marker depths The fish alarm will sound only when there are echoes inside or optionally outside the upper and lower markers These markers are displayed on the Echo Sounder screen Reference Manual Revision B Referen
67. ange from 1 mini mum to 5 maximum For example if you select a signal level of 3 echo strengths of O 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 echoes to be made smaller or be entirely eliminated since it removes any echoes that aren t sustained for at least two pings To turn on the noise limiter 1 Atthe Echo Sounder screen press Picture Press Noise to turn the limiter on or off Press the Return key to go back to the Echo Sounder screen Selecting the color bar hue and white level The color bar displayed at the extreme left of the Echo Sounder screen shows the range of colors used to display various echo strengths Weaker echoes are displayed with colors near the bottom of the scale and stronger echoes are displayed with colors near the top You can choose any one of nine palettes of colors to represent the echo strengths from weakest to strongest e Color bar 1 is the one most often used Reference Manual Revision B Reference section 7 Echo sounding 15 gt The picture menu e Color bar 2 is similar but with fewer colors to aid visibility under some conditions e Color bars 3 8 ar
68. arentheses indicate that the Creating routes from a list of waypoints To create a route from a list of existing waypoints 1 Press WAYPTS ROUTES then press Routes Press New to display the New Route screen Enter the name of the route using the keypad and cursor pad 4 Press Use to change from chart based edit ing to list based editing 5 Press ENTER waypoint was automatically named and the four digit number uniquely identifies each waypoint Also each new waypoint is auto matically given a description showing the time and date you stored the waypoint Continue creating the route by moving the cursor to each desired waypoint location and pressing either Add waypoint or Add new WP A line is drawn on the new route screen connecting the waypoints with small arrows indicating the direction of the route At any time you can press Cancel add to stop appending waypoints and then select a route leg or waypoint to continue editing a dif ferent part of the route When finished press Return to switch to the New Route screen to see all of the route s waypoints Press Insert The Select waypt screen appears listing all of your stored waypoints If you want to switch between the local and alpha lists press Next view Move the cursor to select the desired way point then press ENTER to place the way point in your route Or press New to create a new waypoint then add it to the route
69. arting the track line oooooooo oo 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 Reference Manual Revision B Gp Introducing waypoints To store a route see page 71 A waypoint is a point a location that you ve entered into the 972 s memory The waypoint is displayed on the chart with the symbol you ve chosen Here are some of the functions you can perform with waypoints e go to a point on the Chart screen in one step making a quick waypoint e store waypoints into the 972 e go to these waypoints e string waypoints together to form routes e edit or erase waypoints or routes e plot waypoints on a chart e transfer waypoints and routes from the 972 to a PC or an older Northstar navigator and back again Designating a waypoint You can designate waypoints in any of the following ways e use the cursor on the Chart screen to select an existing waypoint or create a new waypoint e enter numeric position coordinates e 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
70. ation and the date The factory default setting is automatic Under most conditions you ll want the 972 to calculate the variation automatically for your position since the automatically calculated variation is usually entirely adequate Choosing the speed averaging time When you re using uncorrected GPS you may see that your Speed Over Ground readings are slightly erratic varying by up to several knots The 972 s GPS speed aver aging function can help steady these readings 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 certain optimum speed Adjusting satellite elevation The owest sat elevation option is used mainly for technical applications in which the 972 must track all visible satellites regardless of how low they are on the horizon In other instances where high precision fixes are necessary you can increase this setting to hide any low satel lites thereby preventing their use as sources of GPS position information and avoiding potential errors This option is adjustable from 0 to 25 in 5 increments but Northstar recommends leaving this option a
71. automatically copied into that unit when it is turned back on Navigation can be started from any unit and your progress and steering screens are displayed on any unit In addition radar and sounder images are sent in real time to all 972 displays on the network and the radar and the sounder can be controlled from any of the connected units _ RRR _ Restrictions In a network one unit is designated as the master and all others as slaves The GPS antenna is connected to the master unit The only restrictions on networking are the following e there must be one and only one master unit operating in a network e 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 for example brief instructions show how to convert a slave into a master unit temporarily Reference section 10 Networking In normal use this means that as long as the master is turned on everything works automatically The remainder of this section tells what to do if you experience one of the rare occur rences where networking stops working Master unit unavailable If your master unit becomes unavailable due to a failure or other reason you can replace it with any other 972 on the vessel The GPS antenna and any necessary NMEA
72. belled Edit waypt Edit Waypoint name WH x pes 01 51PM TODAY From VESSEL Bearing 260 5 Distance 0000 41 Ta Edit Waypoint screen Reference section 5 Creating waypoints and routes The Edit Waypoint screen appears allowing you to make changes just as if you were entering a new waypoint Press ENTER when done If the waypoint is in an active navplan you must stop navigating before editing it NOTE If you move the waypoint any routes containing 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 Updating waypoint coordinates You can fine tune a waypoint s position by actually sailing to the exact desired position and setting the waypoint s stored coordinates to your present position You Editing waypoints Northstar 972 can do this on the Waypoints chart screen or any of the waypoint list screens To update the waypoint s coordinates to your exact position display the Edit Waypoint screen for the waypoint as described above When your position is correct press Update position and ENTER ee Introducing routes
73. bster trap or trying to find a buoy in a thick fog Manual switching lets you keep a continuous display of distance and bearing informa tion for the current waypoint With manual switching you must manually change to the next waypoint every time you arrive at the current waypoint 1 Press STEER and then Navlog 2 Select the next leg or waypoint if necessary 3 Press Restart and then ENTER Reference section 11 Setup Reference Manual Revision B Navigation options AAD 148 12 or 24 hour clock Time of day can be displayed in either a 12 or 24 hour format This option affects all of the time related displays including high and low tides sunrise sunset and ETA Coordinates You can display position coordinates as lat lon or as Phantom Loran TDs See Using Phantom Loran starting on page 49 Lat lon precision Latitude and longitude can be displayed as either degrees minutes and seconds XX XX XX or as degrees minutes and thou sandths of minutes XX XX XXX Distance and speed units Distances and speeds can be displayed in any of the following units of measurement e nautical miles feet and knots e kilometers meters and kilometers per hour e statute miles feet and miles per hour Reference section 11 Setup The maximum number of saved waypoints When you save a waypoint by pressing the SAVE key the 972 automatically assigns a sequential waypoint numb
74. can use the ZOOM keys to zoom in and out changing the scale MECA Waypt QUIK f xTe 0 033 z5 n 11 5 184 E cti ts i AER P DN NES DAS S ee 3D a PS screen es Steering to a waypoint Northstar 972 Steering on the chart e dotted red line on the chart shows the direct line from your current vessel You can also steer by watching your position to the waypoint progress directly on the chart screen rather than using the steer screens a pair of blue dotted lines surrounding described above Several aids in the 972 the original track line to the waypoint help you do this show the width of the allowable cross f track error These lines will be present e dotted green line on the chart shows only if the Cross Track alarm is turned the original track line from your initial on vessel position to the waypoint 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 navigate a course line or even to navigate directly to a point on the chart On the chart or radar screen just keep the end of the predictor line near the intended course line and your vessel will steer towards and gently merge with the line The predictor line is also shown on the 3D steer screen where it may appear curved to repres
75. ce section 7 Echo sounding 42D Echo sounding alarms To set the markers 1 Press Set upper 2 Press the cursor pad up or down to set the depth or use the keypad to manually enter the desired depth press ENTER when done 3 Press Set lower and set the depth of the lower marker in the same way Now you must tell the 972 whether you wish to be notified of fish detected inside the depth range you ve set or outside that range Setting inside or outside fish markers If you designate the markers as Inside markers the fish alarm sounds when fish are detected within these markers If you set these markers as Outside markers the fish alarm sounds when fish are detected outside of these markers To set the markers to Inside or Outside at the fish alarm window press Markers to cycle between the two settings Turning the fish alarm on and off To turn the alarm on or off at the fish alarm window press Alarms Generally you ll want to turn the alarm on after you finish making all the other settings Reference section 7 Echo sounding 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 This message clears automatically after 20 seconds and the alarm is reset To
76. change the month press the cursor pad up or down 3 When the date is correct press ENTER to display the tides for the new date Reference Manual Revision B Reference section 9 Alarms and TideTrack 139 TideTrack O eee rrr SS Currents 140 Press STAR again to display a graph of currents This screen is very similar to the TideTrack screen Choose the time 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 Reference section 9 Alarms and TideTrack Currents Northstar 972 Reference section 10 Networking General information ooooooomooo 142 Restrictions 0 cece cc ccc cee cece eee e cence 142 141 Reference Manual Revision B 142 General information Northstar s networking allow 972 s to be connected together to share navigation data Waypoints and routes are shared among all networked displays without any work on the user s part Any changes made to a route or waypoint instantly appear in all connected units If a unit is turned off while changes are being made those changes are
77. cision Point Condition 1 Condition 2 1 Has the AUX port been If No follow the steps in Setting If Yes proceed to step 2 configured for the 491 up the echosounder on page 151 Y Is the Advance Speed set to If No proceed to step 3 If Yes change the Advance speed set zero ting Is the 491 s LED STAT indi If No proceed to step 4 If Yes cator dark Check fuses and circuit breakers Check power to 491 with a voltme 3 ter Verify data cable is properly wired and connected Is the LED blinking or If Flashing proceed to step 5 If Steady On steady on Check transducer connector for proper wiring 4 If wiring is correct check transducer impedance Replace transducer if open or shorted Is the LED flashing once If Four times per Second there is If Once per Second the 491 and the per second or four times most likely a hardware problem 972 are trying to establish communi 5 per second inside the 491 cation Wait two minutes then check all wir ing to the 491 and try again 124 Reference section 7 Echo sounding Troubleshooting the echo sounder Northstar 972 Maintaining the transducer Do not expose a transducer to gasoline or clean it with strong solvents as either of these can penetrate and degrade the 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 us
78. creen displays your waypoints graphically You can press the cursor pad to display other areas of the chart and press the OUT or IN zoom keys to see more or less chart area NOTE If you ve turned off the display of waypoints on the Chart screen you ll only see waypoints that are currently in use for navigation Reference section 5 Creating waypoints and routes 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 waypoints you may be interested in at the moment Waypoints on the alpha list The Waypoints alpha screen displays all stored waypoints in alphabetical order Waypoints with a digit as the first char acter appear at the beginning of the list Those starting with a dash or parenthesis are at the end Waypoints on the avoidance list The Waypoints avoidance screen displays up to 30 of the closest avoidance waypoints within 100 nm in order of distance from your present position Using the waypoint lists After you ve stored a few waypoints in the 972 you can press the cursor pad to move Displaying waypoints Northstar 972 up or down within a waypoint list to select individual waypoints When you display a waypoint list you can see their coordinates in either
79. d be occupied by one or two waypoints Reference Manual Revision B Introducing routes TD Creating a route from the chart To create a route graphically from the Chart screen 1 Press WAYPTS ROUTES and then press Routes The names of any previously stored routes are shown on the routes list Routes 4 ROUTES 2 FULL gt FSR 8 WAYPTS GGI III oan 3 WAYPTS ROUTE 1 2 WAYPTS RRB O WAYPTS Routes list screen 2 Press New to display the New Route screen New Route ROUTE NAME 5 ROUTES STORED 2 FULL PRESS THE ENTER KEY TO CONTINUE New Route screen 3 Enter the name of the new route using the keypad and cursor pad 4 Ifthe 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 be a nav aid an existing waypoint or any unmarked point on the chart Press Add 72 Reference section 5 Creating waypoints and routes Creating a route from the chart Northstar 972 new WP If an existing waypoint is selected the menu key will read Add waypt 1 7 ace H H 41 31 138 N 70 41 185 w New Route chart screen Newly created waypoints are named 0001 0002 etc The p
80. de rotation is stabi lized to keep the chart and cursor from jumping while you re browsing around on the chart e 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 Reference section 1 Using the Chart Screen 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 vessel mode will the chart rotate to follow your course angle e Leg up If you re displaying charts in browse mode as leg up and the 972 switches to a new leg the chart will immediately rotate to the direction of that new leg NOTES The edges of other charts in the 972 s built in world chart folio are shown in addition to those installed These edges are shown as black or red dashed lines The lat lon grid is labelled only when the chart is north up How rotating affects the chart and radar The rotation of the chart and the rotation of the radar image interact under certain circumstances as described below Assume that the chart and radar are both north up at the start Rotating the chart Northstar 972 If the Chart And the radar image is screen s in Overlaid on the chart Not overlaid Browse mode The chart can t rotate in Browse The chart can t rotate but the radar can mode If you change the
81. e 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 can be found on Airmar s website WWw airmar com Reference section 7 Echo sounding Reference Manual Revision B Troubleshooting the echo sounder I2 126 Reference section 7 Echo sounding Troubleshooting the echo sounder Northstar 972 Reference section 8 Video Video sources gt 00 a 128 Displaying V de0 oooooococoocccncccrc 128 127 Reference Manual Revision B Video sources The Northstar 972 can display video signals from a variety of sources TV cameras videotape and DVD players all can display their images on the 972 s screen as long as the signals conform to NTSC or PAL standards Just connect the video source s cable to one of the four BNC connectors on the back of the 972 black box and the signals will be available for display Video signals are not carried over the Ethernet network A separate video cable must be run to each 972 system ee S Displaying video 128 To display a video signal from a connected source press the VIDEO key The full 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
82. e additional variations with different background colors e Color bar 9 uses a monochrome scale ranging from dark to bright Changing the depth settings 116 displayed echoes Range You can adjust the shallowest and deepest echoes to be shown on the Echo Sounder screen In automatic mode 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 e shift how far below the surface the echo sounder picture starts e range the depth covered by the echo sounder picture from the top of the screen to the bottom of the screen Reference section 7 Echo sounding Selecting the color bar hue To select the color bar 1 On the Echo Sounder screen press Picture 2 Press Hue 3 Press the cursor pad up or down to select the color bar desired or use the keypad to manu ally enter the number of the color bar 4 Press Return to go back to the Echo Sounder screen Setting the picture s shift starting depth The shift setting adjusts the depth of the top edge of echoes pictured on the Echo Sounder screen You can shift the entire picture up and down to start at the surface of the water 20 feet down or any other depth you choose To set the shift value 1 Atthe Echo Sounder screen press Depth 2 Press Shift Press the cursor pad up or down to shift the starting depth
83. e arrive radius 10 seconds This alarm only appears if there are NO future waypoints or if waypoint switching is manual 134 Reference section 9 Alarms and TideTrack Alarms Northstar 972 Table 3 972 alarms continued CONTROLLED CLEARS CLEARS ALARM ALARM MESSAGE ACTIVATED WHEN ON ALARM AFTER WHEN ICON SCREEN TIME OUT OK LOADING CHARTS Machine is loading new charts No No YES NO NETWORK A 972 designated as a slave and requiring a No No YES NE WDRK master to be present on the network is not z receiving networking signals Sounder alarms shown only if the sounder is enabled BOTTOM Echo sounder detects that the seabed is No Within 20 YES BOfTOM COLLISION higher than the specific limit you ve set seconds after the seabed falls below the alarm zone TEMPERATURE Water temperature reaches the condition No HEMP ALARM specified A FISH ALARM Echoes are detected within the specified depth No SH range Radar alarms shown only if radar is enabled RADAR RADAR GUARD Radar echoes are received within the guard No No No VIOLATION zone GUARD NO RADAR RADAR DATA NOT The 972 hasn t received radar data for several No No YES Q DATA AVAILABLE seconds Reference Manual Revision B Reference section 9 Alarms and TideTrack 135 Alarms Table 3 972 alarms continued CONTROLLED CLEARS CLEARS sensor ALARM ALARM MESSAGE A
84. e 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 navigator is providing position data Reference section 7 Echo sounding Press the cursor pad up and down to set the position of the box along the left edge of the screen As you move the position marker left and right these coordinates change accordingly NOTE When you use the position marker on a split screen showing either two frequencies or Zoom mode each half of the screen has a position marker Both markers designate the same physical location The number of minutes of past echo data available depends on two factors the depth of the water e the advance speed In deeper water the sounder pings at a slower rate so the echo sounder saves data over a longer period of time A slower advance speed will have the same effect 120 Viewing past echoes using SoundTrac Northstar 972 aee U IM Echo sounding alarms The echo sounder s alarms work just like all other alarms they are displayed as a flashing alarm icon on the screen with details shown on the Alarms screen accessed with the STAR key See Alarms starting on page 132 To alert you automatically in situations related to echo sounding you can set three types of alarms e fish alarm seabed bottom alarm e temperature alarm Setting the fish alarm When the fish alarm is on
85. echoes at the new frequency Reference section 7 Echo sounding Changing the frequency of echoes 108 Northstar 972 A dual frequency screen is split into two halves separated by a vertical line in the center When using the zoom feature which also splits the screen into halves both sides of the screen always display the same frequency Zooming in and out The echo sounder s zoom feature expands a portion of the echoes You can examine closely any part of the water column to determine the composition of the bottom or look at the echoes of fish rocks or wrecks When fishing the zoom function is useful for showing a detailed view of any echoes below the vessel Choosing a zoom mode Press the Zoom menu key on the Echo Sounder screen to cycle through the four zoom modes or turn the zoom feature off e bottom zoom bottom lock bottom lock center e 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 Press OUT to zoom out and increase the amount of water seen Six depth ranges are available for the magnified echoes 15 30 60 120 240 and 480 Similar scales are available for the other depth
86. ed by the GPS the charts displayed on the Chart screen As receiver long as you re in vessel mode you can The 972 ignores any course changes if your rotate the chart to any of the following speed is under half a knot angles z The chart reacts very slowly to turns of less i North up No rotation than 5 to avoid annoying small rotations Course up As your vessel changes its direction of travel the chart rotates to Your COG is often different from your keep your COG straight up on the vessel s heading so what you see straight screen Course up represents your true Reference section 1 Using the Chart Screen C31 Reference Manual Revision B Rotating the chart ahead on the horizon may be different from whats displayed on the screen e Heading up This rotation is available only if you have a heading sensor installed and enabled The chart rotates as you travel to keep your heading straight up on the screen When you select heading up the heading line on the radar image points straight upwards The heading line allows you to compare the radar image or the chart with the view in front of the vessel e Leg up The direction of the current leg to a waypoint points straight upwards on the screen The 972 rotates the chart whenever you start navigating on a new leg even if you haven t turned the vessel yet Using chart rotation in browse mode Chart rotation is most useful in vessel mode In browse mo
87. ed to move on its anchor chain by pressing the cursor pad to the right and using the keypad to enter the distance Remember to add a safety factor to allow for GPS inaccu racy 6 Press ENTER To turn off the anchor alarm and delete the anchor waypoint press Raise anchor on the Alarms screen followed by ENTER Reference section 9 Alarms and TideTrack 136 Alarms Northstar 972 Cross track alarm to as little as 0 01 nm approximately 60 The cross track alarm will signal if your feet vessel moves beyond a certain distance Either of two alarms may be triggered from the desired track line The default when the vessel enters the arrive radius setting is 0 10 nautical miles about 600 feet You can set the cross track to as little as 0 01 nm about 60 feet If you re following a route and have chosen automatic waypoint switching the 972 displays the CHANGING alarm To set the cross track alarm icon and switches to the next leg 1 On the alarm screen press the cursor pad to Automatic waypoint switching will also highlight Cross track alarm then press Edit occur if you cross the perpendicular at the alarm end of the current leg e If there are no more waypoints in the route or if you ve chosen manual waypoint switching the ARRIVE alarm is triggered 2 Press the cursor pad to turn the alarm to On 3 To set the cross track distance limit press the cursor pad right and use the keypad to ente
88. een you can see the activated chart regions and enter additional chart permits Displaying the chart screen After the 972 completes its start up sequence press the CHART function key to acknowledge the warning message and display the Chart screen f ft UIC E Displaying the chart screen Passport OnBoard Update POB PASSPORT installed regions Chart Installation To purchase or update Passport OnBoard chart permits Help Call an authorized Passport OnBoard dealer or the Passport OnBoard Chart Center 800 272 6205 Outside the US and Canara please refer to the Help screen Passport OnBoard WE 25 Pampert Or lonrd serial runt 4186 714389 7169 629373 Enter Passport OnBoard chart permits hore 00000 00000 00000 00000 Passport Onioard is a premas ard inoa inchvcual reger folow the segs above For United States Passport Onficasd cortes adora Baty Maps and more Check wits the Passport Be art Setup status 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 Northstar 972 Overlay Off Rotate North up adas tos ES DEMO i a 3 5688 762 582 732 768 Vessel Location details Go to waypoint Chart screen a f i ni a Quickstart Guide Revision B pieplavineiihec
89. en like CHART generally refers to named keys on the 972 s front panel e Text written like More info generally refers to the 972 s menu keys at the right side of the screen e Whenever this manual tells you to press ENTER to perform a function you can press CLEAR instead if you decide not to perform that function These keys are abbreviated ENT and CLR on the 972 e 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 you to turn on the master unit before using the slave In case the master unit is not available removed for service for example brief instructions show how to temporarily convert a slave into a master unit For details on networking see Networking starting on page 141 Reference Manual Revision B Getting Started 3 Networking the 972 Interfacing the 972 The 972 can be connected to a wide variety of compatible marine devices including Northstar s echo sounder and radar A qualified marine electronics tech Maintaining the 972 Pre packaged moist towellettes especially those containing a small amount of alcohol are excellent for cleaning the display window You might want to keep a supply on hand to wipe off fingerprints and other smudges Basic maintenance To help retain the 972 s best possible performance Northstar recommends the following keep fingerprints off the d
90. ence section 1 Using the Chart Screen Text and navdata Streets and Roads Display streets and roads on land masses Shaded Relief The ON setting displays water depths as 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 display The 972 displays your wake as a line indi cating the path you ve recently traveled The wake is sometimes referred to as a track line You can choose how often to GO Setting up the chart screen Northstar 972 store a position fix as a point in your wake and the length of the wake in minutes To show the Wake Display screen press Wake control on the Chart Options screen Wake Control Enable wake OFF 1 SECOND 1 MINUTE Wake point every Wake length Return Wake Control screen To change any of these options use the cursor pad to move the arrow to the field you want to change then press Edit Press the cursor pad to display the option you want Press ENTER to lock in the selection Enable Wake Set to Onto display the wake Set to Offto turn it off Wake point every You can choose amo
91. ent information with chart overlay Estimated Time of Arrival ETA Estimated Time EnRoute ETE INTERFACING e Automatic magnetic variation p e Networkable with other 972 units WAYPOINT ROUTE MANAGEMENT Two bi directional NMEA I O ports 1 aux port Enter waypoints graphically or One bi directional RS 232 port el e Waypoint upload download capability User entered avoidance waypoints from a PC Stores up to 1 000 waypoints 500 NMEA output sentences APB BOD routes BWC GGA GLC GLL GSA GSV LCD e Stores up to 35 waypoints per route HSC MSS RNN RMC RMA RMB Edit erase waypoints or routes VIG WCV XTE ZDA ZTG Conforms graphically to NMEA v 2 0 and later Supports 1 5 Plot any route with automatic chart GLL and BWC scale selection e NTSC Video in VGA out 640 x 480 NMEA input sentences WPL TLL and WAYPOINT NAVIGATION others de a eat 200 PPNM speed output or ext alarm Point and Shoot navigation output 162 Reference section 11 Appendix B Specifications Changing the time zone Northstar 972 972 PHYSICAL FEATURES ENVIRONMENTAL e Waterproof enclosure 15 diagonal color TFT LCD Complementary design to the North star 6000i series and 1502 972 panel resolution 1024 x 768 XGA e 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 f
92. ent the actual track on the 3D grid Reference section 4 Navigating to Waypoints C57 Reference Manual Revision B The course predictor line Navigating along routes To follow a previously stored route press WAYPTS ROUTES then press Routes to display the Routes list Press the cursor pad to select the route you want to follow then press Go The 972 displays a chart showing the chosen route LSA Mee 2 ss a lt lt wt ES Ne ee ee MES O as gt A AN E A ay 7 Penas A PA ano 5 A Waypoint From ane 001 1 Vessel Chart screen showing a route From here you can do the following e select a starting waypoint or leg e start following the route e reverse the route Selecting the starting point The nearest waypoint in the route is auto matically selected as the starting point To choose a different waypoint or route leg press the cursor pad and select it on the Reference section 4 Navigating to Waypoints 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 a waypoint select the leg by moving the cursor onto the leg then press Follow leg
93. er 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 this maximum number to a small value such as five or ten as long as you promptly rename any saved waypoints you want to save permanently before they re overwritten You can enter a number up to 199 for the maximum number of saved waypoints For one or two digit values enter zero as the first digit s When being saved to a route waypoints are automatically assigned four digit numbers these waypoints can be overwritten only during a database IMPORT operation Choosing magnetic variation A compass naturally points to the magnetic north pole several hundred miles from the Earth s geographic north pole The differ Navigation options Northstar 972 ence between the angles to the two poles is known as magnetic variation You can display bearings as true relative to north or magnetic to match your compass The 972 calculates the magnetic variation for your position automatically Push the cursor pad up or down to choose e true no variation applied true bearings are usually required when using a gyrocompass magnetic the unit calculates variation automatically according to your loc
94. es to the edge of a chart its icon may move from the center of the screen To switch from vessel mode to browse mode press the cursor pad To switch back to vessel mode press the Vessel menu key Vessel mode The word VESSEL in the upper right corner of the screen means you are currently using Vessel mode Vessel mode is the primary screen for navi gating the chart 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 Reference section 1 Using the Chart Screen Rotate DEMO Vessel mode Browse mode The word BROWSE in the upper right comer of the screen means you are currently using Browse mode o gt Comparing vessel and browse modes Northstar 972 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 Rotate DEMO ursor 44 23 44 n Position 68 10 16 w Browse mode 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 Rotating the chart Press the Rotate key to change the angle of COG as determin
95. esired waypoint For distance and bearing from a waypoint press the From menu key to display a chart screen Press the cursor pad to select the desired waypoint and press Select waypoint or create a new waypoint at the cursor location by pressing 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 radius box unless you want to make this waypoint an avoidance point as described in the next section Entering waypoints on a chart screen To enter waypoints on a Chart screen 1 Press WAYPTS ROUTES 2 Press Waypoints If necessary press Next view to display the Waypoints chart screen 7 Yeg 3 1 i Sepe y 4 i WAYPTS nl i i Alo i 4 Ea P eset rer remo pow woooswore H S 14 Rotate s gt North up 4 A A s gt se oe ons y e DEMO y v Y Neraenestat tant From vessel sn i lt Add waypoint A 41 31 087 n 70 41 453 w Waypoints chart screen 3 Press the cursor pad to move the cursor to the position of the new waypoint You can zoom in or out as necessary to precisely place your waypoint Reference section 5 Creating waypoints a
96. f you press the cursor pad while on the radar screen a radar cursor is displayed You can move the cursor to any echo or other point on the screen and read the The Miniature Automatic Radar Plotting Aid MARPA target tracking system allows you to designate displayed echoes as targets which will be tracked automati cally as they move Each target s speed course over ground closest point of approach etc are calculated and displayed Targets are displayed on the radar image with special symbols indicating their acqui sition status You can 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 Reference section 6 Radar distance and bearing to it in the lower right corner of the screen Press Vessel to remove the radar cursor when done 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 and the ship s heading will all vary If you can t see the target on the radar then the MARPA feature can t see it either The 972 has built in intelligence that compensates for all this variation and makes every attempt to track MARPA targets even in difficult conditions A critical component in the operation of the MARPA fea
97. h an art as it 1S a science The installation procedure includes setting the 972 s AUX port to the sounder option and then setting the following options Once properly set they should not be adjusted further e the transducer s depth e the speed and temperature e the calibration for the speed sensor e the calibration for the temperature sensor e the gain calibration for the transducer Reference Manual Revision B Reference section 7 Echo sounding 103 Welcome to the Northstar Echo Sounder You may wish to change the following options from time to time to match your personal preferences e depth units feet meters or fathoms on the screen e temperature units Celsius or Fahrenheit on the screen e temperature graph scale lowest and highest on the screen 104 Reference section 7 Echo sounding Welcome to the Northstar Echo Sounder Northstar 972 UD SOUNDER key Auto Picture ECHO Frequency SCREEN Zoom Depth More Depth settings Picture settings Gain More settings i Clutter Noise Hue Signal level Alarms Adv speed White level Return AScope Data Return Data on screen Alarm settings Fish alarm Bottom alarm Temp alarm Return Figure 5 Echo sounder menu structure Reference section 7 Echo sounding 105 Reference Manual Revision B Welcome to the Northstar Echo Sounder Displaying the echo sounder s picture
98. harteceen Qu g S UC E E l UE C15 8 NO 2 GPS The 972 s Chart screen displays your vessel s present position or any position you designate with the cursor pad in relation to land masses nav aids and any waypoints and routes you have entered As you navigate your vessel remains stationary on the Chart screen and the chart moves underneath your vessel Clearing a GPS or WAAS alarm If the 972 isn t able to obtain a position from GPS within three minutes you ll see a flashing NO GPS alarm icon on the right side of the screen This means the 972 has an alarm message that needs your acknowledgement Press the STAR function key to display the Alarms screen The alarm message NO GPS POSITION FIX 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 NEWin 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 ready to go UN e ksta f ft UIC 2 Displaying the chart screen Recent Alarms YOU VE PASSED WAYPT QUIK Crear Alarm 3 25 AM Yesterday Drop Anchor OFF OFF 0 99 OFF 0 10 0 20 200 PPNM 7 Alarm audio Anchor alarm Cross Track Arrive Radius Honk Alarm Alarms screen For details about alarms
99. hat you want to do import waypoints and routes from the second unit or export waypoints and routes to the second unit Connecting the two units The two units must be properly connected with the correct cabling and port settings For interfacing information contact your authorized Northstar dealer To enable transfers on the 972 go to the Port Setup screen change the Aux Port to D B XFER and turn the unit off and then on Transferring waypoints and routes When you transfer waypoints the entire contents of one unit s database are moved into the other They will be added to the waypoints and routes already in the receiving unit If any exact waypoint or route name matches exist the waypoints or routes from one unit will overwrite the waypoints or routes already in the other Transferring waypoints routes to other units Northstar 972 NOTE If you press any function key on the control unit during the transfer the message Transfer aborted by key hit will be displayed and the process will be aborted The control unit will then display the requested function You can press any key on the second unit however without interrupting the transfer process To intentionally stop the transfer at any time press the Stop key The control unit will display the message Transfer aborted by key hit Waypoints and routes transferred up to that point are in the receiving unit be aware that routes may not co
100. he paper chart on the screen This is also one of the drawbacks to raster charts Since the chart is just a matrix of dots the chart plotter cannot tell the differ ence between a navaid and a depth sounding Furthermore they really only look great at one particular zoom level Zooming in or out from that level compro mises display quality Vector Charts Vector charts on the other hand are drawn on the screen from a set of rules specific to each chart instead of a digi tized photo of the chart it s a mathematical description of the chart The chart plotter interprets the description and then draws renders the chart Whatever the screen resolution or zoom level they always look great Rather than being a Electronic Charts and the 972 Northstar 972 matrix of dots the vector chart is a series of lines and shapes The shapes are then filled in with colors One of the biggest benefits of vector charts is that navaids and other points of interest are specified in the chart data so the plotter can highlight navaids and do intel ligent things when the vessel or the cursor gets near a navaid This increased flexi bility is virtually boundless in the power it offers Another advantage is the ability to layer the data The user can shut off certain layers so the display is less cluttered One of the drawbacks of vector charts has been that they don t look identical to the raster charts With ad
101. he 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 how long it takes for a signal to return the distance to a target can be determined As the radar antenna scans through a 360 degree rotation it shows the target s location relative to your position By watching repeated scans of a target such as another vessel you can see how that target is moving 1 Press RADAR to display the radar screen 2 Press Transmit so it indicates On or Standby as desired _ O _ _____ _ o o ooo _ Jo o JJ gt gt gt IttTAAAAEAEAEA K K AAAS Displaying radar The radar image includes e acompass rose to show the direction of true or magnetic north e a gray heading line This line indicates your heading not Course Over Ground and can be used to compare the radar presentation with the view in front of the vessel in the upper left corner the transmit status Transmit on or Transmit standby and the current radar scale Range indicates the distance from the center to the largest range ring and RR indicates the spacing between the range rings in the upper right corner pulse length speed setting rotation mode and Main Bang Suppression MBS Reference section 6 Radar Reference Manual Revision B How radar works 87 in the lower right corner rain clutter
102. hursd 8 37 AM Sep S Sot GPS position screen You ll see your lat lon coordinates on the GPS Position screen If GPS data isn t available you ll see dashes 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 three meters speed measurements accurate to about 0 1 knot and COG measurements accurate to about 0 5 degree WAAS corrections remove most of the errors caused by atmospheric variations When the WAAS indicator is displayed at the right edge of the screen the 972 is using this higher level of accuracy When you require this additional accuracy be 46 gt Reference section 3 Position coordinates Displaying position COG and speed Northstar 972 sure to check often to verify that the WAAS indicator is present A brief status summary of the GPS receiver Table 1 GPS status messages is displayed at the left side of the screen Message Meaning Table 1 describes the GPS status messages A the GPS receiver or its communication link has a problem 3D NAV navigating with 4 or more satellites in 3 D mode 2D NAV navigating with 3 satel
103. in one minute after it is turned on Turning the 972 off To turn the 972 off press and hold the PWR key until the screen goes dark Allow up to 30 seconds for the black box to power down The 972 may dim again to avoid exceeding the maximum internal temperature Special display windows Occasionally the 972 needs to tell you something or ask permission to do some thing When this happens an information or question window appears on the screen This window may contain an alarm icon or 3D an INFO icon or a large question mark along with a message for you to read For more on alarms see Displaying alarm messages starting on page 132 A question window appears gt when the 972 needs a a Question windows Introducing the controls Feel free to try any of the 972 s controls You can t hurt anything and you ll only learn more about how to use the 972 more efficiently The 972 always 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 START NAVIGATING TO CURSOR POSITION YES PRESS ENT No NO PRESS CLR Using ENTER and CLEAR C2 0 UGK Std fe ly tji de Introducing the controls response from you Respond to a question window by pressing the ENTER key to answer yes or the CLEAR key t
104. ing the cursor in a busy part of the Chart screen just look at the edges of the screen for the red cursor pointers They line up with the cursor When you press the cursor pad the 972 goes into browse mode described on page 29 If you move the cursor on top of a waypoint or navaid you will select that point Information about the selected point appears in the popup rectangle After pressing the cursor pad to move the cursor to a point on the chart you can Comparing vessel and browse modes The 972 offers two display modes e vessel your vessel is centered on the screen Reference section 1 Using the Chart Screen 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 e select a nav aid or waypoint to gt show its name lat lon and distance and bearing gt navigate to it gt add itto a route e designate a point on the chart to gt show its lat lon gt navigate to it gt add itto a route gt store as a waypoint e select a leg of a route to follow or edit e view a new area of the chart by moving the cursor to the edge of the screen e browse a cursor is displayed which you can move to designate points or explore other areas of the chart Reference Manual Revision B Using the cursor on the chart screen 29 When your vessel s position mov
105. ing the function key for the currently displayed function NOTE You must be on the screen in question before you press and hold that screen s function key For instance press CHART to display the Chart screen Then from there press and hold CHART to get to the Chart Options screen Installation and configuration 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 Reference section 11 Setup Options Service Info Hardware serial number 9780007 Passport OnBoard serial number 4186 714389 7169 629373 Software version 2 0 224 GPS rcvr software version E508 2 1 1M01325 BW A U GPS revr self test PASSED Options and Service Info screen Navigation options Port setup options aL Diagnostics Software update Sounder options Changing the settings To change any of the options explained in detail on the following pages select the option by pressing the cursor pad to move the arrow at the left of the screen then press Edit The selected option flashes waiting for you to change it using the cursor pad or the keypad Once you ve made the change press ENTER 972 configuration Northstar 972 _
106. ing you directly to the waypoint Waypoints local F QUIK QUICK WAYPOINT 23WAYPTS 1 FULL 54 641 028 0016 07 53 07 16SEP04 939171 234 0015 9492 234 07 53 01 16SEP04 0017 07 53 14 16SEPO4 SLIME 9514 235 Coord Option 9516 235 OTHER 9522 235 View ocal waypoints list Steering to a waypoint 1 On track 2 Off track come left to return 3 Off track and moving towards course line 4 Off track and moving away from course line b 0 If your 972 is interfaced to an autopilot it can steer your vessel automatically along a track line directly to the active waypoint To steer the vessel yourself press the STEER key The 972 displays a picture of your vessel 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 Reference section 4 Navigating to Waypoints don t need to stay precisely on the designated course line The following is also displayed in the Steer screen e distance and bearing to the waypoint e Speed Over Ground SOG e Course Over Ground COG If you exceed the cross track alarm distance the 972 issues an alarm To display this alarm message press the STAR key To clea
107. is displayed Reference section 9 Alarms and TideTrack Press the cursor pad left or right to move a horizontal measurement line to any spot on the tide graph The line 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 select At Station the local time at the tide station At the bottom of the screen the times of high and low tides are listed for that loca tion along with the tide height at the time indicated by the vertical line Choosing a nearby tide station Select the closest tide station by pressing Closest station or choose from any of the nine closest tide stations as follows 1 On the Tide Track screen press Pick from list The 972 searches for stations closest to your present position and displays this list with the closest station at the top Northstar 972 2 Press the cursor pad to select the desired sta tion then press ENTER to display the tides for that station on the Tide Track screen Select Tide Station 7 MOON HEAD RAINSFORD ISLAND NANTASKE DEER ISLAND SOUTH END LOVELL ISLAND THE NARROWS CASTLE ISLAND NUT ISLAND HULL
108. isplay screen remove any prints with a lens cleaning cloth e remove dirt and grime using a soft cloth and Windex or soap and water e don t scratch the display by wiping a sandy or salty cloth across it e use the 972 s protective plastic sunshield when not in use excessive heat from the sun can cause damage e don t open the 972 case there aren t any user serviceable parts inside e always keep the rear connectors plastic caps on when they are not in use the connectors are not waterproof unless covered nician should perform these installations For details contact your local authorized Northstar dealer 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 remove salt or dirt To remove any oil or grease on the screen use a clean dry microfiber type lens cleaning cloth or a small amount of window cleaner Avoid touching the window with your fingers The natural oils from your hand will temporarily affect the characteristics of the screen and cause your fingerprints to appear as bright reflections Fingerprints will disappear when you clean the screen as described in the previous paragraph 4 Getting Started Interfacing the 972 Northstar 972 o oo_ __ _____ S
109. lites in 2 D mode ACQUIRE trying to acquire satellites WAAS WAAS signals are being used for navigation ee Position screen options To display the Position screen options press Magnetic variation and hold POSITION while on the Position screen Choose e True or magnetic Dist speed units Choose Lat lon display e Nautical miles and Knots Choose e Statute miles and Miles per Hour e Degrees minutes and seconds e Kilometers and Kilometers per Hour e Degrees minutes and thousandths of minutes Reference section 3 Position coordinates CAT Reference Manual Revision B Position screen options Time format Choose To designate the time zone for your area 153 Dette E PAE E uta see Changing the time zone on page 153 Viewing GPS satellite status To display more information about the signals received from the GPS satellites press Sat info on the GPS Position screen GPS Satellites The GPS Satellites screen shows the received Signal to Noise Ratio SNR for each satellite the higher the SNR the better the quality of the satellite signals and a map indicating where the satellites are currently located in the sky The satel lites are identified by their PRN number a one or two digit number assigned by the U S government Return Hoop 1 2 GPS satellites are represented by circles Sateliite status screen WAAS satellites are represented by ovals HDOP Horizontal Dilution
110. lted to provide a seamless large area of coverage You may see the edges of the chart coverage area when using this option Chart Options Press Edit to change VECTOR VECTOR Left chart type Right chart type Chart synchronization SYNCHRONIZED Edit Look ahead FOLLOW VESSEL Predictor OFF A Waypt switching AUTO Coordinates LAT LON Lat lon display XX XX XXX Lat lon grid ON Outlines OFF Wake Dist speed units NM KNOTS owe Magnetic variation Browse popups False floor Depth units Return Raster quilting Demo control Chart Options screen 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 desired item then press the On Off menu key to change the item An item that is turned off is shown with two dashes Reference Manual Revision B Reference section 1 Using the Chart Screen C35 Setting up the chart screen Vector Details Soundings Nav aids Onor Depth contours Streets and roads Ports and services Text and nav data Shaded relief Waypoints Waypoint names Tide bars Current arrows Return Vector Details screen The following items are displayed Soundings Display numerical depth soundings on the chart Navaids Display navaids on the chart Depth contours Display depth contour lines Refer
111. n on page 90 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 starting on page 94 Viewing more info Press More info to display an info bar at the bottom of the screen Each additional press of More info shows the following information e your vessel s present Speed Over Ground SOG Course Over Ground COG and heading HDG e your vessel s distance dist and bearing brg to the current waypoint if any along with a steering indicator e your vessel s position in lat lon or TDs if enabled e tide and current information Reference Manual Revision B Reference section 6 Radar C89 Using the radar s main menu keys Overlaying radar on the chart To overlay radar onto the chart press CHART to switch to the chart screen then press Overlay to display Radar in the key s blue box Radar can be displayed on the main radar screen or as an overlay on the chart Changing radar scale and rotation To use radar features when radar is overlaid on the chart or displayed as a split screen be sure to press Control if neces sa
112. n press the cursor pad down on the main echo screen Small digits attached to the depth marker line display the marker s exact depth The depth marker also affects the Marker Zoom display see Marker zoom on page 111 e advance speed e A scope data numeric and graphic information on the Echo Sounder screen Reference Manual Revision B Reference section 7 Echo sounding AID Using the MORE key Changing the advance speed Advance speed refers to the speed at which the vertical scan lines move from right to left across the Echo Sounder screen There are five advance speeds plus the Off setting which freezes the advance of all data e 2 1 two identical lines of data are displayed for every ping e 1 1 one line of data is displayed for every ping e 1 2 one line of data is displayed for every two pings e 1 4 one line of data is displayed 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 Atthe 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 Reference section 7 Echo sounding Displaying the A scope The echo sounder s A scope lets you look closely at present or past echoes by hori zontally mag
113. nd routes Reference Manual Revision B Creating new waypoints C67 4 Press Add waypoint to capture the cursor 5 Now follow the instructions above for entering coordinates and display the New Waypoint a waypoint numerically starting with Step 4 screen The coordinates of the cursor Step 6 will be already entered don t change them unless you mean to Creating avoidance area waypoints You can make avoidance areas from new or existing waypoints 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 to te help you quickly see it on the chart varoni Name The waypoint is treated as an avoidance point only if you specify a warning radius larger than zero In other words just assigning the slashed circle symbol to a waypoint doesn t cause the 972 to treat that waypoint as an avoidance point 68 gt Reference section 5 Creating waypoints and routes Creating avoidance area waypoints Northstar 972 Waypoint screen The warning radius can be CAUTION from 0 1nm to 4 99 nm Be sure to allow a little extra distance A around the hazard area so
114. ne technician using the guidelines found in the Northstar 972 Installa tion Manual Congratulations on your purchase of the Northstar 972 Integrated Navigation System The 972 is a full featured 3D color GPS vector charting system easy to use but meeting your marine navigation needs in a comprehensive logical manner Optional Northstar radar and fish finding modules round out the 972 s capabilities The 972 enhances GPS with the Wide Area Augmentation System WAAS for superb accuracy and offers a high resolution full color screen with Jeppesen Marine and BSB cartography Major functions are accessed with a single keypress By reducing the attention required to navigate you can devote more time to simply enjoying your trip For information on installing interfacing and troubleshooting the 972 please see the Northstar 972 Installation Manual part number GM972IM or contact your local authorized Northstar dealer ee _ _ _ _ _ _ _ Using this manual This manual is divided into two main sections e 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 find answers here to any questions about getting the most from your 972 Check the mini table
115. ng the master unit 1 Press the STAR key to display the Options Service info screen 2 Press Software update 3 Verify that the proper version number appears in the Upgrade Search field on the display corrupted 4 Press Start Update and follow any instruc tions on your screen Diagnostics Network status screen 2 When you re done press and hold the cursor f pad down until the unit displays the The Network status screen lists all oper Options Service Info screen again ating units connected to the network for troubleshooting 1 On the Options Service Info screen press Using the LCD test key Diagnostics then press Network status From the Diagnostics screen press LCD test All units are listed with their model number This function is used for factory testing of and serial number The unit you are currently the unit s screen and it displays several operating is identified with the text me screens controlled by the menu keys Press any function key to return to another A screen Testing the 972 s keypad A built in keypad test lets you check the integrity of all the control head s keys Storage 1 On the Options Service Info screen press Displays the percentage of database Diagnostics then Keypad Pressing each Storage used and the number of routes and key identifies it on the screen waypoints stored Reference section 11 Setup Northstar 972 Diagnostics Service options Factory service f
116. ng the following options for point display and the corre sponding track length e every 1 second e every 2 seconds e every 4 seconds e every 8 seconds e every 20 seconds e every 40 seconds e every 1 minute e every 2 minutes Wake length Set the length of the displayed wake to 1 2 5 10 20 30 60 or 120 minutes Press Return twice to return to the Chart screen Demo control See Using demo mode on page 19 to use Demo mode for simulating vessel motion in any area of the world Reference Manual Revision B Reference section 1 Using the Chart Screen 37 Setting up the chart screen Using the course predictor line The chart 3D steer and radar screens also display a course predictor line that indi cates where your vessel will be in a few minutes if you maintain your current course and speed The predictor line extends out from your vessel in the direc tion of your Course Over Ground Its length is determined by your speed and the number of minutes you specify on the Chart Options screen You can also turn the line off To use the predictor line simply select the number of minutes you prefer the line to represent as follows 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 you define by their distance and bearing from another point 1 Press WAYPTS
117. nifying the echo from each ping To display the A scope 1 Press More 2 Press AScope to turn the A Scope on or off Picture Frequeno 200 42 21 283 N 70 58 267 w 4 851 1823 J To QUIK The A scope appears on the far right hand side of the screen magnifying one water column Using the MORE key Northstar 972 The A scope with dual frequencies If you re displaying both 50 and 200 kHz echoes the A scope magnifies echoes from the frequency shown on the right side of the screen Setting the ECHO screen data Numeric and graphic information can be displayed on top of the echoes including bottom depth water temperature and speed through the water STW To access these functions press More and then Data Note that the temperature and speed menu keys don t appear if the sensors are not configured 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 The A scope with zoom mode If you re in zoom mode the A scope magnifies the unzoomed echoes on the right side of the screen temperature white numbers on a black background Press this key again to cycle through the
118. ntain all of their waypoints due to the transfer interruption Press the Start key again to restart the entire transfer process from the beginning Choose the unit you d like to use as the control unit The instructions below are for a 972 Remember You can use either of the two units because both units are capable of importing or exporting waypoints and routes Make sure the second unit is on At the control unit press WAYPTS ROUTES 3 Press Import Export Waypoints and Routes Quick waypoint Waypoints Routes Distance and bearing i Import Export Waypoints and routes screen 4 Decide whether you want to import waypoints into the control unit or export them to the sec ond unit Import Export Move Backup to a USB drive waypoints Restore trom a USB drive to this navigator and routes AAA Export to another system Import from another navigator to this navigator Import Export screen Reference section 5 Creating waypoints and routes Reference Manual Revision B Transferring waypoints routes to other units C81 5 Press Import or Export to display the import or EXPORT data screen The status bar in the center of the screen displays the message Ready to transfer to show that the transfer is ready to start Before transferring you can check the com munication link between the two units by pressing Test comm The status bar should display the mes
119. ny NMEA 0183 compat ible equipment The 972 is interfaced with other equip ment through its data transmission ports 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 AUX port for fishfinding 1 Press the STAR key to display the Options Service Info screen Installing software updates You can install current software updates by obtaining a software update USB Thumb Drive from Northstar or your local autho rized Northstar dealer _ _ _ 89 Changing your port settings two NMEA ports labeled NMEA the auxil iary port labeled AUX and the RS 232 port To see a summary of the wiring infor mation for 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 Press Port setup options Press Edit Set the AUX port option to SOUNDER 5 Press ENTER Po To set up the sounder see the Northstar 491 Installation Manual Reference Manual Revision B Reference section 11 Setup C51 Changing your port settings 152 CAUTION A Do not remove the Thumb Drive or turn the unit off while the update is in progress or your 972 system will be Update all slave units before updati
120. o answer no Most of the other keys including the function keys are temporarily inactive while the 972 displays a question window 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 functions These are CHART POSITION STEER and 3D and the optional functions RADAR SOUNDER and VIDEO Press one at any time to instantly display that function on the full screen then use the menu keys at the right edge of the screen to control the function The WAYPTS ROUTES key accesses the 972 s database of stored position information The STAR key accesses the alarm screen and miscellaneous functions including TideTrack and setup commands Northstar 972 Split screen feature Press the SPLIT key to split the screen into two or more sections each with a different function displayed See page 23 for more information Menu keys The six round keys at the right of the screen take on different functions depending on the screen displayed Each active key is labeled on the screen You can press CLEAR to hide the labels and display more data on the Chart 3D Split Sounder and Video screens To show the labels again press any menu key On the Chart screen you can also hide the info bar see Displaying numeric data on the chart screen on page 19 by pressing CLEAR a second time while the menu keys are hidden Detailed chart data You
121. of Precision is a technical measure of the quality of your position fix It is calculated from the satel lites current positions You ll usually see an invalid HDOP value displayed immedi ately after the 972 is turned on before it s ready to navigate HDOP can range from an ideal value of slightly less than one up to poor values of 10 or more Any value less than two indicates an excellent satel lite configuration 48 Reference section 3 Position coordinates Northstar 972 Viewing GPS satellite status 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 Using Phantom Loran If you have lists of fishing spots and other waypoints that you recorded as loran time differences TDs but you no longer have a loran receiver the 972 can automatically convert its GPS coordinates into TDs in real time as you travel You can display your current position as TDs or navigate to waypoints using TDs The accuracy from this conversion is generally 500 to 1500 feet This feature called Phantom Loran can help your transition from loran to GPS You can use the 972 to simulate the full opera tion of a loran receiver using all of the 972 s navigation functions as if it were actually receiving loran signals These calculated TDs won t exactly match the positions of previously recorded
122. of the following ways by pressing the Position menu key Creating new waypoints There are two easy ways to create a new waypoint numerically 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 You can also enter a description of up to 16 characters on the line below the name Reference section 5 Creating waypoints and routes e as lat lon coordinates e as distance and bearing from your position often the most useful way to display coordinates since it may be easier to visualize 3 miles north than lat lon digits e as Loran TD s Assigning a symbol You can give the waypoint a symbol so you can easily identify it on the Chart screen When creating or editing waypoints you can choose from a list of symbols displayed in the upper right corner E 1 K X ANCHOR FISH FLAG X By ae S a FUEL WRECK DANGER DOT Figure 3 Typical waypoint symbols Reference Manual Revision B Creating new waypoints C65 Entering waypoints numerically To enter waypoints numerically 1 Press WAYPTS ROUTES 2 Press Waypoints Waypoints local 22 W
123. oints ccc cece eee neces 64 Creating new waypoints cece eee eee eee 65 Creating avoidance area waypoints 68 Editing waypoints ccc cece eee ence eee ee 69 Introducing routes ooooocoocconoconm m 71 Creating a route from the chart 72 Creating routes from a list of waypoints 73 Saving a route as you travel o o oo 74 Editing a route iii Ree 76 Transferring waypoints routes to other units 80 Transferring waypoints to and fromaPC 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 inserting removing or changing the order of its waypoints Reference Manual Revision B 63 Displaying waypoints To display waypoints press the WAYPTS ROUTES key then Waypoints You can press Next view to step through the four available waypoint screens listed below e waypoints displayed on the chart alist of up to 30 local waypoints sorted by distance nearest first alist of all waypoints sorted alphabetically e alist of up to 30 local avoidance waypoints sorted by distance nearest first The waypoint screen type is shown in the upper right corner Waypoints on the chart screen The Waypoints chart s
124. ook ahead shows a larger area ahead of the vessel Predictor Off 1 2 3 5 10 15 30 minutes Controls the length of the course predictor line Waypoint Switching Switch to the next waypoint automatically upon arrival or require manual switching Coordinates Lat lon or Phantom Loran TDs Lat lon display Degrees minutes and seconds or degrees minutes and thousandths of minutes Reference section 1 Using the Chart Screen 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 Both Dist Speed Units Nautical miles and knots miles and miles per hour or kilometers and kilometers per hour Magnetic variation True or magnetic Browse popups On or Off Displays information next to the cursor about depths navaids obstructions etc False floor To improve the appearance of below the surface colors this function Setting up the chart screen Northstar 972 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 Depth units Feet meters or fathoms Raster quilting Choose whether or not raster charts are qui
125. optimal gain clutter and range settings to show an excellent picture from the surface to the bottom When you select Auto the range setting may change from time to time to keep the seabed in view as the water 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 e auto cruising optimizes the gain and clutter for tracking the bottom with less emphasis on any fish in the water e auto fishing optimizes the gain and clutter for searching for fish Press Auto to switch between auto cruising and auto fishing The setting is shown on the menu key Manually overriding automatic mode You can always manually change any of the echo sounder s settings the gain clutter noise limiter shift and range Manually setting the gain causes the range to be controlled manually Changing the appearance of the picture colors gain clutter and the noise limiter is described in The picture menu starting on page 114 Setting the range and shift is described in Changing the depth settings starting on page 116 Reference Manual Revision B Reference section 7 Echo sounding 407 Using automatic mode Changing the frequency of echoes The sounder uses two transducer frequen cies 50 kHz and
126. orthstar 972 a Reference section 2 3D maps Introduction to 3D images oooooooo o 42 Configuring the Screen cece cece ee eee eee 43 Flying around the Vessel oooooooooommo 44 The 3p 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 Reference Manual Revision B CD Introduction to 3D images Using the 972 s 3D screens you can view the ocean floor and land information as a three dimensional image You can see favorite fishing spots harbor entrances and even navigation channels in a full 3D view both above and below the water surface You can use the cursor pad to fly around your vessel to observe your surroundings from a different position Note that the first time an area is accessed for 3D display it may take some time to read the data from the disk drive 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 3D screen Overlay Turn On or Offthe overlay selected may be While every effort has been made to provide y P vector charts or photo on the 3D Options the best elevation data possible errors in the source material data processing and the 3D screen presentation may occur The prudent mariner
127. p through the options Quickstart Guide Revision B ASA 0363 Rotate 4 08 AM erea po few 21 204 DEMO Saks ursor 42 17 010 n Position 70 58 588 w Split screen with Chart Position and Steer For three simultaneous functions press 3 way split Then press Top to step through The echo sounder Y UIGKSTaA re G ul a 23 the available screens for the top right func tion Press Bottom to step through the same choices for the bottom right function The Control key When the screen is split to show more than one function you can press Control to The STAR key alarms TideTrack and setup Using the alarms The 972 has several alarms that automati cally alert you to certain situations For example the 972 lets you know when you re approaching a waypoint by sounding a beep and flashing an alarm icon on the 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 z fi tf el The STAR key alarms TideTrack and setup select which of the displayed functions is controlled by the menu keys For example Control Control Radar Targets Control gt
128. played chart e display additional position information in the Info barat the bottom of the screen e go to a waypoint nav aid or unmarked point you select on the chart screen by pressing the cursor pad Displaying other information On the Chart screen you can display your current route track history waypoints and avoidance points a lat lon grid a radar overlay or other chart details See Setting up the chart screen on page 33 4 f mii 4 a Displaying the chart screen QUI C KStdld GUI el C17 Chart options Once on the Chart screen Press and hold the CHART key to display options for the Chart screen See page 33 for the other options Press Chart Detail to select the items to be displayed on the chart screen 3D chart screens The Northstar 972 can also display three dimensional images of the ocean bottom and land areas Press the 3D key to display these images Use the cursor pad to position the camera viewpoint A red line drops from the vessel to the seabed to show the water depth visually Menu keys e Overlay applies a vector based chart to the 3D image this operation may take quite a bit of time the first time a chart is accessed e Browse allows the viewpoint to be moved by using the cursor pad e Bottom Lock Locks the camera to the seabed directly under the vessel instead of the vessel itself e Camera up in Browse mode moves the camera viewpoint higher C
129. pointer at the left side of the screen to the spot in between two existing waypoints where you want to insert a new waypoint To add a waypoint to the beginning of the route be sure to position the pointer above the first waypoint not right onto it 2 Press Insert to display the Select waypt screen that lists all your stored waypoints To switch between the local and alpha lists press Next view Note you can t add an avoidance point to a route 3 Move the cursor to select the desired way point then press ENTER to add the waypoint to the route Reference section 5 Creating waypoints and routes Removing waypoints from a route 1 Press the cursor pad to move the left hand pointer directly onto the waypoint you want to remove 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 Press ENTER Editing a route you re navigating along When you follow a route the route s waypoints are copied to the navplan for safekeeping The navplan is displayed on most chart screens and on the Navlog screen If you change a route you re navigating along the 972 stores the changes but they won t appear in the navplan you re following To activate these changes in your current navigation you must start following the route again If you edit the coordinates of a waypoint directly in the navplan
130. r the distance then press ENTER To set the arrive radius Arrive radius 1 On the alarm screen press the cursor pad to The arrive radius defines a circle around highlight Arrive radius then press Edit your current active waypoint The default alarm setting for the radius is 0 20 nautical miles 2 To set the distance around waypoints use the or about 1200 feet You can set the radius keypad to enter the distance then press ENTER TideTrack The 972 calculates tide information for any of over 3 540 NOS NOAA tide stations To display this information press the STAR key until you see the Tide Track screen Reference section 9 Alarms and TideTrack 37 Reference Manual Revision B TideTrack Tide Track Closest station MOUNT DESERT ISLAND BAR H CLOSEST et Meet SEP 30 2004 8 18 AM EASTERN STANDARD Now Tide Track screen The entire U S coastline including Alaska and Hawaii is covered plus many Carib bean islands and eastern and western Canada Data can be displayed only for chart regions that have been activated Tides can be displayed for any date up to the year 2100 Data is from the official tide table predictions and should be about as accurate as the printed tables The TideTrack screen The name of the selected NOAA tide station and the selected day are shown at the top of the screen A graph of the water height for the selected tide station during any 24 hour period
131. r data to a Northstar 6000 series or older navigator or to a PC as described on pages 80 and 83 Reference Manual Revision B Getting Started 5 Technical support Getting Started NOTE To prevent delays it s critical that you first obtain a Return Materials Authorization RMA number from our Service Department before returning your 972 Shipments to BNT Marine Electronics should be made to the following address Electronic Charts and the 972 One of the 972 s unique features is the ability to display both raster and vector charts In split screen mode you can even display a raster chart and a vector chart side by side This is a great way to under stand the differences and similarities between the two Raster Charts Raster charts are literally digital scans of paper charts In most cases these paper 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 Northstar Service Department 30 Sudbury Road Acton MA 01720 If you have special overnight or second day shipping requirements please call for turnaround time and freight costs before you ship your 972 paper charts It s like having t
132. r the alarm press Clear alarm GA Steering to a waypoint Northstar 972 Steer Screens There are two versions of the steer screen The 2D Steerscreen is a simple graphic display of cross track distance The 3D Steer screen is similar but from an overhead perspective view that also shows nearby waypoints Press STEER to switch between the screens The 2D steering screen The 2D Steer screen uses a traditional two dimensional display that shows your cross track distance how far your vessel is from your intended track line the center line of the display The vessel symbol on the display rotates as your vessel turns showing whether you are moving closer to the line or further from the line 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 Come 30 Right below indicates the heading change Reference section 4 Navigating to Waypoints needed to sail parallel to the desired track line This is the correction to make after you are on the line 20 Steer KES Ema 4 95 1837 Me Restart 11 5 1845 fe Travel time E
133. r to the desired spot on the chart Quickstart Guide Revision B 44 2 68 0 Acquiring SOG 0 0 8 37 AM GPS pos 1 45 N 9 09 018 Thursday Sep 30 2004 ition screen 3 Press Go to cursor 4 Press ENTER The 972 displays a track line to the new waypoint named QUIK and guides you directly to this point ing immediately to a quick int IGKS Going immediately to a quick waypoin Oitifte lt AN AGUA EN 42 20 161 N 70 58 268 Navigating Watch your progress on the chart screen or press STEER to stay accurately on the straight line course to the waypoint see Steering to a waypoint starting on page 54 That s all you have to do to use the 972 in its simplest form To learn more about navigating to waypoints See Navigating to Waypoints starting on page 51 Radar Using the optional Northstar radar you can determine where other boats or ships navi gational markers land masses flocks of birds and other objects are located in relation to your vessel 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 talni Cillel Radar described in Using the Adjustment keys starting on page 91 Press Adjust Markers
134. rom front IPX2 rating from rear e WAAS SPECIFICATIONS Integrated 12 channel L1 GPS WAAS Pod antenna receiver 2 channel WAAS reception e WAAS accuracy lt 2 meters 2dRMS e 50 antenna cable standard OPTIONS Compatible with Northstar Ethernet Radars 4 25kW Compatible with Northstar 491 Fishfinder 2 Year Limited Warranty Reference section 11 Appendix B Specifications 163 Reference Manual Revision B Changing the time zone 164 Notes Northstar 972 Notes 165 Operator s Manual Revision B 166 Notes Northstar 972 Notes 167 Operator s Manual Revision B 168 Notes Northstar 972 Notes 169 Operator s Manual Revision B 170 Notes Northstar 972 Notes 171 Operator s Manual Revision B 172 Notes Northstar 972 Notes 173 Operator s Manual Revision B 174 Notes Northstar 972 Notes 175 Operator s Manual Revision B 176 Notes Northstar 972 Notes 177 Operator s Manual Revision B 178 Notes Northstar 972 Notes 179 Operator s Manual Revision B 180 Notes Northstar 972
135. rror if any of the waypoints in the active route are uploaded Importing from a 961 962 is hidden If the 96Xexprt txt file is found on any of the removable media the import function uses that file for transfer Imported waypoints named SAVEDnn are converted to 00nn Imported waypoints named coord are converted to COORD All unrecognizable characters are converted to a space Imported waypoints are truncated to 6 characters and a sequential numeric digit is added to the end to make the imported waypoint unique Transferring waypoints routes to other units Northstar 972 Transferring waypoints to and from a PC If you ve stored many waypoints or routes in the 972 or if these waypoints are the only record you have of these important locations you may want 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 transfer software and instructions and cable ordering information contact your autho rized Northstar dealer Reference section 5 Creating waypoints and routes Reference Manual Revision B Transferring waypoints to and from a PC
136. rt Range rings Range rings are concentric circles around your vessel that can be used to measure Using the Adjustment keys Press Adjust radar to display a menu accessing several pages of radar adjust ments Most of these adjustments correspond to conventional radar adjust ments and are used in the same way All settings are retained while the system is turned off The adjustment pages are e Image e Advanced settings e Presets e 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 distance from your vessel The spacing of the range rings is shown in the upper left hand corner of the radar image identi fied by RR Range rings can be turned off when they are not needed 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 change this setting To enter a number use the keypad to enter the digits or use the cursor pad to step the digits up or down To make an adjustment to the radar such as rain clutter or gain etc use the following procedure 1 Press the key such as Gain to activate it the key changes from blue to red 2 Press the key again if necessary to select Auto or Manual 3 Ifa numerical value appears you can change it by e pressing the cursor pad up and down
137. rwise the key will read Add new waypoint e lfyou 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 youre 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 route the waypoint is not erased from the 972 1 Move the cursor to the waypoint you want to remove then press Remove waypt Even if you remove all the waypoints from a route the 972 still retains the empty route To remove the route entirely see Erasing an entire route on page 79 2 When done press Return to go to list based editing Editing a route using a waypoints list After you have accessed a route as described in Editing a route starting on lt gt Editing a route Northstar 972 page 76 you can add or remove waypoints using the waypoints list as follows Edit Route FSR 8 waypoints j 0010 m 11 53AM TODAY po DI 2 27 314 0001 mo 04 22PM 28DECOS Q 0 86 0003 4 gt 0002 m 04 22PM 28DEC05 gt 0 80 090 0003 nia 04 23PM 28DECO5 0 81 000 1 05 302 4 0004 m 04 23PM 28DECO5 0005 m 04 23PM 28DECOS Editing a route using the waypoints list Adding waypoints to a route 1 Press the cursor pad to move the
138. ry so that the button indicates Radar Changing the scale To change the radar s scale press the IN key to 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 Reference section 6 Radar screen or as part of a split screen All radar functions are controlled in the same way regardless of how radar is displayed Just press the Control key so that it displays Radar radar if it indicates Chart you re zooming the chart However if the radar overlay is turned on the chart and radar scales are locked together When you zoom in on the chart radar scale changes to match the chart Rotating the radar image To rotate the radar image press the ROTATE key repeatedly until it indicates the rotation you want You have the same options as for a Chart screen North Up Course Up Leg Up or Heading Up see Rotating the chart starting on page 31 The rotation of the chart and the rotation of the radar interact under certain circum stances as described in the table below If the Control key indicates Radar you re Overlaying radar on the chart Northstar 972 rotating the radar if it indicates Chart you re rotating the cha
139. s the More Info menu key to display an info bar at the bottom Quickstart Guide Revision B Using demo mode 1011 0 EIA Citi ie clears See Alarms starting on page 132 for a listing of all alarms and the meaning of each eee Using demo mode 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 start moving to the demo cursor location To view the Chart screen while in demo mode press Return twice The word Demo always appears on the right side of the Chart screen when you re in demo mode To leave demo mode go back to the Demo control screen as described above and press Exit Demo This key returns you directly to the active Chart screen of the screen If the More Info key is not visible press Vessel to restore it e your vessel s distance Dist and bearing Brg to the current waypoint if any along with a cross track indicator e your vessel s position in lat lon or TDs if you ve enabled loran e tide and current information at the nearest tide station 42 20 161 n ion 70 58 268 Vessel lat lon displayed on chart screen Each additional press of the More Info key shows the following information e your vessel s present Speed Over Ground SOG Course
140. sage Remote link ok To move waypoints and routes in the direction you ve chosen press Start The status bar displays the message Transferring and shows the number of waypoints and routes already transmitted against the total number The progress bar located below the status bar graphically displays the percentage completed If there s a problem with the transfer pro cess the following messages may appear If the second unit is not ready the control unit displays Couldn get remote waypt route count or Transfer aborted by communication timeout and the status bar message Commu 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 Reference section 5 Creating waypoints and routes 8 If the transfer is successful the control unit s status bar displays the message Transfer complete You can now press any key to resume nor mal operations Notes on waypoint transfer e The user should stop navigating when performing an import on the 972 If the transfer is not initiated from the 972 it will allow the transfer but cause an e
141. set Gain and Sea Clutter to Automatic Gain preset Set this control for a pleasing looking image The unit will attempt to maintain this appearance Sea preset Set this control for a pleasing looking image The unit will attempt to maintain this appearance Sea clutter preset can be adjusted for harbor mode for when the range is set to less than 1nm or for auto mode for when the range is set to greater than 1 mile Using the Markers keys Press Adjust Markers to display controls for the 972 s electronic bearing line EBL variable range marker VRM and guard zone Reference section 6 Radar 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 Trigger delay Heading calib Park angle Press EBL VRM or GuardZone to access that function Press Visibility to make the selected function visible or invisible When finished press Return to return to the main radar menu keys All settings are retained while the system is turned off Using the Markers keys Northstar 972 Electronic Bearing Line EBL The Electronic Bearing Line is a marker tha
142. t the factory setting of Choosing a geodetic datum A variety of lat lon coordinate models is used by cartographers to produce the world s navigation charts Each model is called a datum The 972 s geodetic datum option contains all referenced datums Reference Manual Revision B Reference section 11 Setup 49 Navigation options 149 according to Defense Mapping Agency publications You should always be sure that the current datum matches the chart being used In the 972 the datum is generally selected automatically for the chart in use Most current charts use the WGS84 datum A few old charts from South America and other areas use other datums If you choose a datum other than WGS84 an offset will be applied but only to the GPS lat lon of your vessel s position The vessel will be moved on the chart but not waypoints routes or track points To change the datum reference 1 On the Navigation Options screen select the Geodetic datum option and press Edit 2 Press the cursor pad up or down to scan through the alphabetic listing 3 When you see your choice press ENTER For a list of the available datums Appendix A beginning on page 155 in this manual NOTE You can specify a different datum for the 972 s output ports than the one set for the positional display For instructions on how to do this see the Northstar 972 Installation Manual part number GM972IM Reference section 11 Setup
143. t you can place on top of the radar image to aid in navigation and to keep track of your surroundings Use the cursor pad to move the EBL around your position to measure the bearing to any object on the screen Variable Range Marker VRM The Variable Range Marker is displayed as a circle around your vessel Use the cursor pad to make the circle bigger or smaller The distance to the marker is displayed in the lower left corner of the screen Guard zone 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 Guard Zone Figure 4 Guard zone Press the following keys to adjust each guard zone Press Visibility to show or hide the guard zone When the zone is hidden it doesn t alarm To adjust the position of the guard zone press GuardZone if necessary so that it displays Position Use the cursor pad to set the position To adjust the size of the guard zone press GuardZone if necessary so that it displays Size Use the cursor pad to set its size Reference Manual Revision B Reference section 6 Radar C95 Using the Markers keys Radar cursor MARPA targets I
144. te starting on page 76 Reference section 4 Navigating to Waypoints 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 can reverse your trip at any time Pressing the Reverse menu key on the Navlog screen lets you travel the trip in the opposite direction Stopping and restarting navigation Stopping navigation Whenever you press the navlog s Stop menu key the 972 stops navigating and won t display distance and bearing to waypoints or ETA or ETE Restarting navigation You can restart navigation along any leg or to any waypoint of the trip On the Naviog screen move the cursor arrow to highlight the waypoint or leg When you select a waypoint a triangle points to the waypoint When you select a leg an arrow points from the first waypoint to the second Press the Restart menu key Reference Manual Revision B The NAVLOG screen 6D 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 The NAVLOG screen Northstar 972 62 Reference section 4 Navigating to Waypoints CTA Reference section 5 Creating waypoints and routes Displaying wayp
145. te between list and chart 1 Editing a route using a waypoints list editing at any time 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 waypoints to the end of a route or to the beginning or the middle depending on the choice you make in step Reference section 5 Creating waypoints and routes CIT Reference Manual Revision B Editing a route one below After having accessed a route as described in Editing a route starting on page 76 1 Press the cursor pad to move the cursor onto the route s last waypoint or first waypoint or a leg po TN Z C p E Rotate re a vo NS RR eee x Aai ANG 3 qat PE a pe A 15 4 isi e AA y i y i A 1 Remove WOMAMES gt A waypoint Y 4 V E en Waypoint From 0 14 Name 001 3 Vessel 263 Waypoint 0001 selected in the route 2 Press Add to end or Add to front or Split leg 3 Move the cursor to the location that you want to add to the route either an existing way point or any other spot As you move the cursor the 972 displays the new route leg as a dotted line to the cursor position 4 Press a menu key once to add the waypoint e f you selected an existing waypoint the key is marked Add waypoint Reference section 5 Creating waypoints and routes othe
146. tes You can set the 972 to automatically save a sequence of waypoints as a route Each Quickstart Guide Revision B 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 Man Over board window to save your position as a waypoint named MOB The 972 immedi ately and automatically does the following e switches to a zoomed in chart screen showing your vessel and the MOB waypoint e enables the wake line e switches to vessel mode e starts navigating to the MOB point You can use any of the unit s functions to return to the location of the waypoint The 972 never shows the Arrive indication it continues guiding you to the MOB waypoint until you instruct it otherwise When you re finished using the MOB func tion just continue using the 972 in whatever way you wish SAVE and Man Overboard MOB C IGKStaltGUIde C25 C26 ouien iiel ry Reference section 1 Using the Chart Screen Using electronic charts ooooooomcmomo 28 Zooming in and Out ooooooocooncnccoo 28 Using the cursor on the chart screen 29 Comparing vessel and browse modes 29 Rotating the chart oooooooooommm 31 Setting up the chart screen
147. 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 Reference section 6 Radar MARPA targets Northstar 972 lt gt Reference section 7 Echo sounding Welcome to the Northstar Echo Sounder 103 Displaying the echo sounder s picture 106 Using automatic mode cc cece eee eee eee 107 Changing the frequency of echoes 108 Zooming in and OUt eee eee eee eee eee 109 Echo Sounder Setup ooooooocooococcrcoccrcc 112 The picture MOL oir 114 Changing the depth settings 116 Using the MORE key ooo oooocooocccom 117 Viewing past echoes using SoundTrac 120 Echo sounding alarmS oooooooooomco m o 121 Reference Manual Revision B 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 recommended transducers 101 Reference section 7 Echo sounding MARPA targets Northstar 972 Welcome to the Northstar Echo Sounder CAUTION A Proper installation and configuration of your Northstar sounder is of utmost importance for accurate and effective performance under a variety of
148. the most recent alarm from each main category such as anchor avoidance communications cross track GPS signals and waypoints enabling you to browse through older alarm messages that have not been acknowl Alarms Northstar 972 edged Each successive press of Clear alarm will show you the most recent alarm message from each category Clearing alarms Clearing an alarm means removing the flashing alarm icon as well as the word new from the display of that alarm on the Alarms screen To manually clear an alarm and to see other alarms that may need clearing press the Clear alarm key on the Alarms screen There are two types of alarms Auto clearing alarms automatically clear after the alarm condition disappears or in some cases after a short time out period typically about 10 seconds Most alarms are auto clearing however they can also be manually cleared if desired e 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 CONTROLLED CLEARS CLEARS ALARM MESSAGE ACTIVATED WHEN ON ALARM AFTER WHEN SCREEN TIME OUT OK YOUR ANCHOR MAY Vessel has moved outside the radius limit set YES No No BE DRAGGING in the anchor alarm YOU VE ARRIVED AT Vessel has entered the
149. tnam EVRST 214 836 303 IND_BIN Indian Bangladesh India Nepal EVRST 289 734 257 IRE65 Ireland 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 Luzon Mindanao Island CL1866 133 79 72 MAHE Mahe 1971 Indian Ocean CL1880 41 220 134 MASI Marco Astro Salvage Islands INTL 289 124 60 MASS Massawa Africa B1841 639 405 60 MERCH Merchich Africa CL1880 31 146 47 MA61 Midway Astro 1961 INTL 912 58 1227 MINA Minna Africa CL1880 92 93 122 NAH_O Nahrwan Masirah Island Oman CL1880 247 148 369 NAH_UA Nahrwan United Arab Emirates CL1880 249 156 381 NAH_SA Nahrwan Saudi Arabia CL1880 231 196 482 NAP Naparima BWI Trinidad and Tobago INTL 2 374 172 NAD27_MN North American 1927 CONUS mean value CL1866 8 160 176 NAD27_WU North American 1927 Western U S CL1866 8 159 175 NAD27_EU North American 1927 Eastern U S CL1866 9 161 179 NAD27_AK North American 1927 Alaska CL1866 5 135 172 Reference Manual Revision B Reference section 11 Appendix A Datum list C157 Changing the time zone
150. trength of the clutter echoes returned from the ocean surface Higher values suppress more clutter Sea Clutter can be set to automatic or manual mode Press the activated Sea clutter key to switch modes The sea clutter setting can be entered on the keypad or by using the cursor pad Manual settings range from 0 to 99 Rain Clutter controls the strength of the clutter echoes returned from rain or fog Higher values suppress more clutter Press the activated Rain clutter key to switch modes The rain clutter setting can be entered on the keypad or by using the cursor pad Manual settings range from 0 to 99 Interference rejection Certain types of interference for example from radars on other vessels can be lessened by using the interference rejection filter Select Off 1 low 2 medium or 3 high Using the Adjustment keys Northstar 972 Manual vs automatic settings When gain or sea clutter is in manual mode the same setting is applied at all directions from the vessel In automatic mode settings are calculated scan line by scan line This provides the advantage that the settings can be optimized for each direction For example with a breeze sea clutter is typically stronger when looking into the wind that when looking away from it The radar can automatically suppress more sea clutter where it is needed and allow more signal to be displayed in areas with less clutter return Advanced settings
151. ture is your heading sensor The heading sensor provides MARPA with critical information to correlate the radar display with the ship s heading A poor heading sensor can make MARPA a chal lenge even in good conditions Radar cursor Ed Northstar 972 Designating targets To designate a MARPA target on the radar screen set the Control menu key to Targets mmm Use the cursor pad to move the cursor over Symbol Symbol Symbol definition the target and finally press Acquire target name The 972 will attempt to lock on to the Dashed box Radaris attempting to target and begin tracking it A maximum of roa acquire the target as ten targets can be tracked at once L a MARPA target This typically takes up to several full rotations of the radar antenna array Blue circle Normal target Vector O with vector shows course and speed of the target Redtriangle Threat target The X with vector target is inside the radar alarm area Vector shows course and speed of the target Cursor 26 05 841 n 31 Vessel i Yellow Lost target The radar A diamond has lost the target and od is attempting to reacquire it Each target being tracked will be indicated by a symbol 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 Reference section 6 Radar C97 Reference Manual Revision B
152. unctions for technician use only Changing the time zone Press the STAR key until you see the Time of Day screen The time date local time zone and time of today s sunrise and sunset are shown Time of Day 7 33 35 MON OCT 18 2004 EASTERN STANDARD GMT 12 33 PM MON OCT 18 2004 1 16 AM 12 13 PM Sunrise Sunset 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 time Press ENTER to use the new time zone Reference Manual Revision B Reference section 11 Setup 153 Changing the time zone 154 Reference section 11 Setup Changing the time zone Northstar 972 Appendix A Datum list The following pages list all of the datums available in the 972 together with the mathe matical parameters for each 155 Reference Manual Revision B Datum ID Datum name ELLIPSOID delta x delta y delta z ADI MN ADINDAN Mean Africa CL1880 166 I5 204 ADI E ADINDAN Ethiopia CL1880 165 11 206 ADI MA ADINDAN Mali CL188
153. ur cross track error to zero Reference section 4 Navigating to Waypoints Reference Manual Revision B Restarting the track line GD The NAVLOG screen The Naviog screen displays the waypoints in your current trip and lets you easily make changes to them To access the screen press the Navlog key on the Steer screen The navlog helps you plan and log your trip using three main functions e displaying your progress along your trip e allowing you to easily change the rest of your trip add waypoints to a route or reverse the entire trip e allowing you to sequence to the next leg if you ve chosen manual waypoint sequencing The nav log contains the series of waypoints that you follow along your route and displays them in sequential order When you navigate to these 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 Reference section 4 Navigating to Waypoints The Naviog screen shows the list of waypoints the length and bearing of each leg and the direction of your next trip leg Navlog _ ETA 4 41 AMTODAY DTG 4 82 Restart J QUIK QUIC
154. ure Frequeno so 290 DEMO Zoom 42 26 306 n 71 25 817 w Bottom lock zoom Zooming in and out Northstar 972 Marker zoom When you select marker zoom you can Bottom lock center zoom choose the part of the water column to magnify The top edge of the magnified When you select bottom lock center zoom area is determined by the location of the the flattened out sea bottom is displayed in depth marker To move the depth marker the center of the screen You can see any press the cursor pad up or down fish near the bottom as with the bottom lock zoom and also examine the seabed s composition 42 26 306 n 0 00 162 71 25 817 w To moB Marker zoom 42 26 306 n 0 00 162 so 71 25 817 w To nos A Bottom lock center zoom Leaving zoom mode To return to the normal unzoomed display just press Zoom repeatedly until you have cycled through all the zoom modes Reference section 7 Echo sounding 111 Reference Manual Revision B Zooming in and out ee l Echo Sounder setup 112 Several setup functions are available to configure the echo sounder CAUTION Be careful not to change any of the functions that are not described here unless you first read about them and understand their functions in the Installation Manual Accessing the setup screen Sounder Options 7 Transducer depth 00 Depth units FEET Temperature units scale F O32 100 50 kHz calibration 0
155. vances in technolo gies both in cartography and marine electronics this disadvantage is disappearing See page 28 for more on charts in the 972 Purchasing charts Where to purchase Passport Charts You may purchase charts by telephone at 800 272 6205 or online at www PassportOnBoard com 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 times to display the Passport OnBoard screen 2 Note the Passport OnBoard serial number and contact Jeppesen Marine by telephone or the Internet to purchase the chart permits you need 3 Enter the chart permit and press ENTER 4 Wait for the chart to be activated up to five minutes In addition a menu key for purchasing charts is displayed on the chart screen whenever there are additional charts that you have not purchased at the current vessel position Passport OnBoard PASSPORT Chart Installation To purchase or update Passport OnBoard chart permits Call on athorined Passport OnBoard dealer or the Passport On loard Chart Center 800 272 6205 Outside the US and Canada piama refer to the Help soroen Passport OnBoard WE 25 Pansport OnBoard serial number 4186 714389 716
156. will always have official navigation charts for Mode comparison and as their primary means of Vessel mode The camera viewpoint always points toward the vessel showing it from various angles and elevations navigation Browse mode The camera viewpoint can be moved to any location to show other areas 42 Reference section 2 3D maps Introduction to 3D images Northstar 972 Bottom Lock Camera down On look at bottom In browse mode causes the camera to pan Off look at vessel comia Camera up Mone min Displays additional information at the In browse m ca the camera to pan browse mode causes the era sop bottom of the screen upward Configuring the screen While on the 3D Screen press and hold the Exaggeration 3D key to display the 3D Options screen You can set the following 3D Chart Options You can set the amount by which the terrain height is exaggerated for ease in viewing Minor changes in elevation gt Exaggeration 5X become visible in an area that might Bottom Lock 100 Eat otherwise appear flat Adjust the exaggera Terrain Overlay VECTOR ii tion to best fit your needs from 1X no Info OFF exaggeration to 60X extreme exaggera Thumbnail OFF tion The keel marker and depth False Floor OFF automatically adjust to the exaggeration factor In the Pacific Northwest exaggeration of 2X usually produces a natural looking image In the Northeast try 3X to 5X Off the
157. y pressing the Position menu key Reference section 4 Navigating to Waypoints e Lat Lon e Loran loran TDs make sure the GRI displayed is correct and change it if necessary e 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 make will overwrite this one Just move the cursor to the name field and change the name from QUIK to a unique permanent name before continu ing 4 Press ENTER twice The 972 begins guiding you directly to the waypoint Using previously stored waypoints If you have already stored waypoints as described starting on page 65 you can select one of these and navigate to it 1 Press WAYPTS ROUTES then press Waypoints 2 Press Next view to display the most conve nient view You can select a waypoint from the chart view or from one of the waypoint lists Reference Manual Revision B Designating a waypoint 53 often the local list since the waypoints you navigate to are usually nearby See Display ing waypoints starting on page 64 3 Press the CURSOR PAD to select the way point you want to navigate to 4 Press Go to then press ENTER The 972 begins guid

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