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Chapter 2 - Introducing the 961

Page 2-14

961 Operations and Reference Manual Rev. D

Absolute and

repeatable accuracy

GPS’s major advantage over all other commercially-available
navigation systems, including loran, is its all-weather, world-
wide availability, and its

absolute accuracy

. (Those readers

interested in loran should see ”Understanding Loran-C” start-
ing on page 5-7.) Absolute accuracy refers to the ability of a
navigation device to determine your actual lat/lon coordinates
on the surface of the earth, as compared to position data deter-
mined from a paper chart or other reference.

Repeatable

accu-

racy, on the other hand,

refers to the ability of a particular

navigation device to

return

to a position whose lat/lon coordi-

nates were previously recorded by this same navigation
device.

Selective availability

What is selective availability?

With GPS available to virtually anyone in the world, the DOD
wanted to avoid the possibility that GPS’ precision could be
used by hostile forces as a source of accurate targeting data
against the United States. To guard against such actions, they
introduced into the GPS signals intentional errors, or

selective

availability

(SA), which only U.S. forces could bypass. Selective

availability involves a complex formula that can be turned on
or off.

At this time, the future of selective availability is uncertain.

Selective availability effectively

reduces

GPS’ absolute and

repeatable accuracy from 30 meters (approximately 100 feet)
95 percent of the time to 100 meters (approximately 330 feet)
95 percent of the time. This reduction means that you can
expect to be

within

330 feet of your measured position 95 per-

cent of the time and

outside

that area approximately five per-

cent of the time.

In the beginning of SA, the majority of end users accepted it as
an inevitable part of GPS, a trade-off against its worldwide
availability. This reduction in accuracy, however, was

n’t

acceptable to the U.S. Coast Guard; it didn’t meet its require-
ment of 8-20 meter accuracy for navigating in harbors. For this
reason, the Coast Guard developed a system of

differential cor-

rections

that let it effectively bypass selective availability’s

built-in error.

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Содержание 961X

Страница 1: ...961 961 GPS Chart Navigator Operations and Reference Manual P N GM1700 Revision D X XD ...

Страница 2: ... the owner To be covered by this warranty the Northstar equipment must have been in normal use The warranty does not apply to units with defects caused by improper installation physical damage abuse tampering lightning or other abnormal electrical discharge or to units with defaced or altered serial numbers or to units repaired by unauthorized persons or repaired in a manner that violates Northsta...

Страница 3: ... 15 Using the chart view screens 1 16 Navigating to a point 1 22 Reading and clearing alarm messages 1 27 Introducing the 961 2 1 System overview 2 2 Introducing the 961 s controls 2 7 Entering data 2 9 Caring for the 961 2 10 About interfacing the 961 2 12 Introducing GPS and DGPS 2 13 Using the Controls 3 1 More navigation terminology 3 2 Highlight Two More navigation terms 3 2 PWR key 3 3 Funct...

Страница 4: ...reating Waypoints 6 1 Introducing waypoints 6 2 Displaying waypoints 6 2 Sorting the list of waypoints 6 5 Searching for a waypoint 6 7 Creating a new waypoint 6 7 Editing a waypoint 6 14 Erasing a waypoint 6 16 Changing the display of coordinates 6 16 Creating Avoidance Points 7 1 Introducing avoidance points 7 2 Displaying avoidance points 7 3 Sorting the list of avoidance points 7 7 Searching f...

Страница 5: ...tarting the track 10 19 Using the Trip Function 11 1 Introducing the trip function 11 2 Displaying the trip 11 3 Changing the trip 11 5 Saving the trip as a route 11 11 Erasing the trip 11 12 Restarting the track at the trip screen 11 14 Stopping navigation 11 15 Alarms TideTrack and Currents 12 1 Understanding alarms 12 2 Understanding the TideTrack function 12 8 Understanding the currents functi...

Страница 6: ...and Specifications A 1 Navigation A 1 Position data A 2 Steer screens A 2 Waypoint and route management A 2 Waypoint navigation A 3 Trip functions A 3 Miscellaneous functions A 4 GPS receiver A 4 DGPS receiver 961XD A 5 Interfacing A 5 Physical features A 6 Options A 7 Warranty A 7 GPS Antenna A 7 GPS DGPS Combination Antenna A 8 Glossary G 1 Index I 1 ...

Страница 7: ...t of Figures Figure 1 961 function keys 1 15 Figure 2 961 controls 2 8 Figure 3 GPS satellites communicating with vessel 2 13 Figure 4 Position variances with uncorrected GPS 5 9 Figure 5 Restarting the desired track 10 20 Figure 6 Passing a waypoint 13 20 ...

Страница 8: ...Page viii 961 Operations and Reference Manual Rev D ...

Страница 9: ...tus messages 5 6 Table 4 Displaying waypoints 6 2 Table 5 Displaying avoidance points 7 3 Table 6 Displaying routes 8 3 Table 7 Displaying tracks 9 2 Table 8 961 alarms 12 4 Table 9 Cross track scale options 13 4 Table 10 Datum list 13 11 Table 11 Reference ellipsoid constants 13 18 Table 12 HCRF chart errors 13 49 Table 13 Service checklist 14 17 ...

Страница 10: ...Page x 961 Operations and Reference Manual Rev D ...

Страница 11: ...tial startup screen 3 3 Power off dialog box 3 5 Chart screen with menu keys 3 7 Alarms screen 3 9 Chart screen alarm message 3 10 Setup menu screen 3 11 Service menu screen 3 13 Traditional steer screen 3 15 3 D steer screen 3 16 Trip screen 3 17 Waypoints screen 3 19 Routes screen 3 21 Tracks screen 3 23 Avoidance points screen 3 25 Man overboard dialog box 3 28 Chart screen with MOB6 waypoint 3...

Страница 12: ...nt dialog box 4 32 Use selected waypoint dialog box 4 33 Selected route point dialog box 4 34 Chart setup screen 4 35 GPS satellite status screen 5 3 Chart screen with waypoints 6 3 Waypoints screen 6 4 Selected cursor position dialog box 6 9 Store as a waypoint dialog box 6 9 Vessel position dialog box 6 11 Chart screen with avoidance points 7 4 3 D steer screen with avoidance points 7 5 Avoidanc...

Страница 13: ... 7 Join leg dialog box 10 9 Selected route point dialog box 10 11 Selected route leg dialog box 10 12 Selected waypoint dialog box 10 14 Selected cursor position dialog box 10 16 Selected cursor position dialog box 10 17 Go to waypoint dialog box 10 18 Go to waypoint dialog box 10 19 Trip screen 11 3 Active trip point dialog box 11 6 Future trip point dialog box 11 7 Go to selection dialog box 11 ...

Страница 14: ... screen 13 45 Enter navigator permit dialog box 13 46 Deleting all HCRF dialog box 13 48 HCRF charts screen 13 52 HCRF charts in database screen 13 53 HCRF permits screen Skipper version 13 54 HCRF permits screen Navigator version 13 55 HCRF user permit screen 13 56 Charts in database screen 13 57 Select chart source screen 13 61 Charts on disk screen 13 62 Setup demo mode screen 13 63 Time inform...

Страница 15: ...ction keys 1 15 Using the chart view screens 1 16 Navigating to a point 1 22 Reading and clearing alarm messages 1 27 This chapter introduces the 961 Operations and Reference Manual the 961 s initial startup and basic installation proce dures and briefly discusses the function keys and CHART screens After reading this chapter you ll know how to turn on the 961 and start basic navigation operations...

Страница 16: ...an internal hard drive inside their processors and a CD ROM drive for installing soft ware updates and charts from different chart CDs onto this hard drive The hard drive stores 1000 routes and 2000 way points and enough chart data to cover an entire coastline Using either BSB charts Maptech or NDI s ChartKit ChartPack charts or the United Kingdom Hydrographic Office s UKHO Admiralty Raster Chart ...

Страница 17: ...never underway CAUTION Proper installation of your Northstar 961 is of utmost impor tance to accurately receive and effectively use GPS signals under a variety of weather conditions To get the best per formance from your 961 Northstar strongly recommends that you have an authorized Northstar dealer perform the installation If you prefer to perform the installation how ever please carefully follow ...

Страница 18: ...ders who are new to marine naviga tion may want to refer to either Highlight One Basic naviga tion terms later in this chapter Highlight Two Understanding more navigation terms or the Glossary start ing on page G 1 for definitions of 961 and related navigational terms If you encounter a term you don t understand turn to the Glossary for its meaning After using the 961 for a while you ll find that ...

Страница 19: ...n and warning information that pertains to your personal safety or prevents damage to the 961 The CAUTION and WARN ING boxes contain critical information please read them NOTE is the type style used for titles of reader notes These notes contain valuable information purposely highlighted so that you don t miss it while reading the main text KEY is the type style used to refer to the 961 s function...

Страница 20: ...which is differential ready only Latitude and longitude coordinates are collectively referred to as lat lon coordinates or lat lon The CHART screen may also be referred to as the chart view The 961 system may also be referred to as the unit or the system Technical support After you follow the instructions in this manual if you need technical support or if you have any other questions you can conta...

Страница 21: ...h star factory for details see Viewing product information starting on page 14 2 If you need assistance feel free to call the Northstar service department at 978 897 6600 To prevent delays it is critical that you first obtain a Return Materials Authorization RMA number before returning your unit to the factory The unit is covered by a two year limited warranty see the Limited Warranty Policy at th...

Страница 22: ...pping your 961 Refer to the Limited Warranty Policy at the front of this man ual and to Chapter 14 Service and Maintenance Functions of this manual for more details about service procedures Turning the 961 on Using the PWR key To turn on the 961 1 Press the PWR power key in the 961 s upper left hand corner pressing the PWR key activates the control head and the processor After several minutes the ...

Страница 23: ...atically dis plays the SYSTEM TEST screen for about 10 seconds System test screen After the SYSTEM TEST screen the 961 automatically displays the OWNER S MESSAGE screen for about 10 seconds To cre ate a personal owner s message such as the owner s name and the name of the vessel see System security starting on page 13 6 ...

Страница 24: ... and Reference Manual Rev D Owner s message screen After the OWNER S MESSAGE screen the 961 automatically displays the ADVISORY MESSAGE screen warning you not to rely solely on the 961 s chart cartography for safe navigation Advisory message screen ...

Страница 25: ... the center of the chart represented as a small circle A 961 that recently has been used either at or near that same position will usually be ready to navigate within several minutes If the 961 doesn t acquire GPS signals soon enough however your last position fix from the last time the unit ran will be represented by a small position fix circle you ll see an alarm message in the upper portion of ...

Страница 26: ...vel low when you don t actually need it for more details see Controlling LCD screen brightness starting on page 3 26 Turning the 961 off The procedure for turning off a system with two control heads is slightly different than turning off a system with one head To turn off an entire system both the head and the processor with one control head 1 Press and hold the PWR key for approximately three sec...

Страница 27: ...ology If you re new to navigation before proceeding you may want to review the basic navigation terms on the following page in Highlight One It is suggested that you review these terms carefully because many of them are used in a very specific way in this manual Soon you ll be ready to get underway ...

Страница 28: ...pressed as the number of degrees 0 to 90 north or south of the Equator Leg The line or path between two waypoints in a route or a trip Longitude Imaginary lines on the earth s sur face running north south expressed as the number of degrees 0 to 180 east or west of the Prime Meridian a line running from the North Pole to the South Pole Nautical mile nm One nm equals 6 076 feet compared to a statute...

Страница 29: ...eys The function keys are briefly described below CHART displays two independent CHART screens views A and B showing your position on the chart information about the chart in use all the data you need to navigate tides using Northstar s exclusive TideTrack feature and currents overlay You can create and store new way points avoidance points and routes at these screens and view existing waypoints a...

Страница 30: ...delete charts and the 961 s service informa tion functions including port setup options and saving restoring the waypoint and route databases TRIP displays one screen showing the progress of today s navigation plan called today s trip This trip can easily be modified For complete details about the function keys see Using the Controls starting on page 3 1 Using the chart view screens Reviewing the ...

Страница 31: ...s of actual paper charts This means that everything that you re already familiar with will be displayed right on the 961 s CHART screen Your vessel The round vessel symbol in the center of the CHART screen shows your present position Zooming in and out on the chart view To zoom in and show a more detailed view of the chart press the IN key located in the lower right hand corner of the 961 To zoom ...

Страница 32: ...line The green line extending straight out from your vessel s sym bol is your position predictor line which predicts what your position will be at a future time based on your current COG and SOG You can set this time to predict your position in one minute two minutes three minutes five minutes or 30 min utes or turn the line off completely see Customizing chart setup options starting on page 4 35 ...

Страница 33: ...he lower right hand corner of the 961 The chart will be magnified For a less detailed view of the chart press the OUT key The displayed chart will cover a larger area The zoom number in the chart scale box changes with each press of the IN or OUT key Distance scale bar On the left hand side of the CHART screen is a vertical ruler with alternating red and blue sections The primary purpose of the ru...

Страница 34: ...the CHART screen CLEAR when pressed briefly clears the CHART screen of menu keys press any menu key to restore them press and hold CLEAR to clear menu keys and everything else on the CHART screen except for your vessel and the range rings The clearing action reduces on screen clutter so you can see more of the chart INFO two identical keys displays at the bottom of the CHART screen two rectangular...

Страница 35: ... numeric naviga tional data appear in large easy to read numbers at the bot tom of the screen in an INFO BAR Chart screen with info bars Each successive press of either INFO key shows the present nav data in the following order 1 speed over ground and course over ground SOG and COG 2 lat lon coordinates LATITUDE and LONGITUDE 3 your preferred GRI GRI and the best pair of loran TDs only available i...

Страница 36: ...reen if you re not viewing the CHART screen press the CHART key to return to it You can use the cursor to designate a position on the chart or you can enter coordinates in a dialog box Option 1 Using the cursor to designate a chart position You can use the cursor to point to a spot on the chart and nav igate there as follows 1 To display the cursor represented by a red square symbol with crosshair...

Страница 37: ...ates are automatically displayed in the CURSOR INFO BAR at the bottom of the screen Chart screen with cursor location info bar To return to showing your vessel in the center of the chart press the bottom right VESSEL key at any time 2 Press the CURSOR key The SELECTED CURSOR POSITION dialog box appears displaying the coordinates of the cursor position ...

Страница 38: ...x 3 To navigate directly to the coordinates press the GO NOW key or press the CANCEL key to cancel The 961 returns to the CHART screen and displays a dashed green line the desired track from your vessel to the new waypoint automatically named COORD This waypoint is represented by a green X on the CHART screen ...

Страница 39: ...Reminder A second INFO key will be present only after you press the INFO key at the bottom of the screen To clear an INFO BAR from the CHART screen press and hold its INFO key until the INFO BAR disappears The top INFO BAR can t be cleared with out first clearing the bottom INFO BAR NOTE You can also choose to add those new coordinates to the end of your trip or to the end or start of a stored rou...

Страница 40: ...ates of your active waypoint if any or else the coordinates of your most recent position are displayed Go to coordinates dialog box 2 To change these coordinates use the KEYPAD to enter new coordinates Press the CURSOR PAD right to move the flashing cursor to the longitude field or press down to move to the distance and bearing fields then use the KEYPAD to enter new coordinates For details about ...

Страница 41: ... coord waypoint To display an INFO BAR showing your SOG and COG lat lon coordinates GRI and TDs distance and bearing to the active waypoint or the name of the chart in use press either of the INFO keys Reminder A second INFO key will be present only after you press the INFO key at the bottom of the screen To clear an INFO BAR from the CHART screen press and hold its INFO key until the INFO BAR dis...

Страница 42: ... 2 To acknowledge an alarm message press the CLEAR ALARM key at the upper right side of the screen 3 To return to the CHART screen press the CHART key Some alarms can t be manually cleared for complete details about alarms see Alarms TideTrack and Currents starting on page 12 1 NOTE During an alarm condition the alarm message always appears on whatever screen you re displaying as well as on the AL...

Страница 43: ...ring data 2 9 Caring for the 961 2 10 About interfacing the 961 2 12 Introducing GPS and DGPS 2 13 This chapter introduces the 961 s major features and con trols discusses basic maintenance of the 961 and provides an introduction to GPS and DGPS Read this chapter to learn the broader concepts of 961 operations and marine navigation ...

Страница 44: ... GPS accuracy the Northstar 961XD features an internal two channel DGPS receiver that accepts DGPS signal corrections from shore based transmitters called beacons These transmitting beacons emit radio signals whereas many other navigational beacons such as buoys and lighthouses emit light signals The 961XD uses these DGPS signal corrections to display your position a position fix as accurately as ...

Страница 45: ...961 s waypoint avoidance point and route features include storing up to 2 000 waypoints and 1 000 routes storing up to 200 avoidance points and displaying them on the CHART screen and the 3 D STEER screen storing and displaying waypoints in several ways one of 23 different symbols can be assigned to each waypoint for display on the CHART screen the WAYPOINTS screen can be sorted by symbol name dis...

Страница 46: ... and routes Chart redraw Normally as you navigate your vessel remains centered on the CHART screen and the chart moves underneath it The 961 s high speed screen redraw feature automatically keeps the chart visible even as you move from one chart to the next Lighting The 961 s liquid crystal display LCD screen is easy to see in all kinds of light from full direct sunlight to total darkness Anti ref...

Страница 47: ...ssible to use the 961 and navigate without them The 961 is compatible with either of the following types of charts or both BSB 2 0 format navigational charts ChartKit or ChartPack CDs supplied by either Maptech or NDI These are high quality high resolution NOAA digital charts provid ing chart coverage for most of the world Each CD con tains about 75 to 200 different charts covering a specific area...

Страница 48: ...the internal chart database For complete details about loading either type of chart see Loading updating and deleting charts starting on page 13 30 Installing BSB charts When installing BSB format charts be sure to use Maptech Chartkit s Second Edition or higher and ChartPack chart CDs If you try to install one of the First Edition CDs you ll receive an error message and will be unable to complete...

Страница 49: ... refer to the soft rubber buttons or keys on the front face of the 961 These keys control all the functions of the 961 Feel free to experiment with these con trols You can t hurt anything in fact you can probably learn many new ways of operating the 961 more efficiently Whether you re entering changing or deleting information the 961 always asks you to verify your actions You ll be asked to confir...

Страница 50: ...y this key isn t labelled on the actual unit SAVE key MOB key IN key and OUT key CURSOR PAD with left right up and down arrows KEYPAD ten alphanumeric keys see below for details LEFT ARROW and RIGHT ARROW keys part of the alphanumeric keypad MENU keys six keys located in a vertical row on the right side of the 961 As mentioned in Chapter One their func tions depend on what screen is currently disp...

Страница 51: ...acter position will be written into Use the LEFT ARROW and RIGHT ARROW keys on the KEYPAD to move the flashing cursor to the next character you want to enter Press the up and down arrows of the CURSOR PAD to move to the next line you want to enter When the item s is correct press the DONE or ACCEPT key The 961 will accept the full screen of data and store it in its memory In some fields such as wa...

Страница 52: ...le The upper left hand key is labeled with the letters A B C and the number 1 To enter these characters press the key once to show the letter A press the key again to show the letter B press a third and fourth time to show the letter C and the number 1 respec tively A fifth keypress returns you to the letter A The other nine keys use this same method for data entry To enter letters or special char...

Страница 53: ...waterproof Weatherproofing your 961 Saltwater spray If left disconnected the rear connectors behind the 961 s con trol head may corrode slightly from exposure to saltwater spray Keep the plastic caps of the rear connectors in place at all times Protect the entire unit from prolonged exposure to the elements by mounting it if possible in a relatively dry area At the end of a trip wipe the control h...

Страница 54: ...processor keep the CD ROM drive s door and tray closed unless you re inserting or removing a CD Because the 961 copies and stores CD data onto its internal hard drive you ll only have to insert these CDs during their installation You shouldn t have to open or close the drive for any other reason Keep all of your CDs in a safe watertight place where they won t be damaged or exposed to sunlight and ...

Страница 55: ...ation you may begin using your 961 with out understanding anything about these navigational con cepts However Northstar recommends that you read this section at some point to become familiar with the concept of GPS and DGPS What is GPS The United States Global Positioning System GPS is now fully operational Developed by the U S Department of Defense DOD the GPS system comprises 21 active satellite...

Страница 56: ...es as a source of accurate targeting data against the United States To guard against such actions they introduced into the GPS signals intentional errors or selective availability SA which only U S forces could bypass Selective availability involves a complex formula that can be turned on or off At this time the future of selective availability is uncertain Selective availability effectively reduc...

Страница 57: ... mance 12 channel GPS receiver and optional two channel internal differential receiver work together to provide position accuracy of one to three meters 50 percent of the time and under four meters 95 percent of the time Remember one meter equals just over one yard Differential corrections are invaluable when navigating in such narrow or congested areas as ports and waterways or wherever you requi...

Страница 58: ...Chapter 2 Introducing the 961 Page 2 16 961 Operations and Reference Manual Rev D ...

Страница 59: ...R key 3 3 Function keys 3 5 Brightness key 3 26 SAVE key 3 27 MOB key 3 27 IN and OUT keys 3 30 Cursor pad 3 30 Arrow keys 3 31 Menu keys 3 32 This chapter describes all of the Northstar 961 s controls in detail except for the alphanumeric KEYPAD for this informa tion see Entering data starting on page 2 9 ...

Страница 60: ... GPS and DGPS starting on page 2 13 Hydrographic Chart Raster Format HCRF A chart format designed by the United Kingdom Hydrographic Office and used by ARCS see ARCS definition above Leg The line or path between two waypoints in a route or a trip Nav aid Aids to navigation often used on coastal and inland waters Nav aids primarily comprise buoys lighthouses and daymarkers and their purpose is to w...

Страница 61: ...ut five to ten seconds Initial startup screen After the INITIAL STARTUP screen the 961 automatically displays the SYSTEM TEST screen for about 10 seconds After the SYSTEM TEST screen the 961 automatically displays the OWNER S MESSAGE screen for about 10 seconds To create a personal owner s message such as the name of the vessel and its owner see System secu rity starting on page 13 6 After the OWN...

Страница 62: ...r power up and thereafter if GPS data is unavail able for more than three seconds the 961 considers GPS position unknown and activates a non clearable GPS alarm You ll receive the alarm message ACQUIRING GPS at power up or NO GPS FIX The displays of speed over ground SOG and course over ground COG lat lon and TDs and GRI are replaced by dashed lines Turning the system off The procedure for turning...

Страница 63: ...his setting lets you save power by turning off the control head while the processor is running and lets you separately test the functioning of the head and processor if necessary Unless the system is being tested make sure the TEST POWER switch is set to AUTO Function keys The five function keys located across on the lower left part of the 961 CHART STEER WAYPTS ROUTES STAR and TRIP control the fu...

Страница 64: ...in Quick Start starting on page 1 1 pressing the CHART key again switches between two independent CHART screens called chart views A and B You can preset each view to a useful zoom level a particular chart or an INFO BAR display and you can instantly select one view or the other Using this feature you can view one screen with your present position and a second screen with your destination position...

Страница 65: ...ady being viewed until there is a better scale to choose from that cover your ves sel s location press briefly view a list of all charts that cover the vessel s location press and hold the NEW CHART key or the cursor s loca tion first press the CURSOR PAD then press the NEW CHART key view a list of all charts in the 961 s chart database press and hold change the usage of any chart press and hold s...

Страница 66: ...ETUP screen display your active waypoint if any distance and bearing to the waypoint numerical and graphical cross track error XTE estimated time of arrival ETA and estimated time enroute ETE display details about the chart in use including its name number source and revision date If you re displaying an HCRF chart such as ARCS the INFO BAR displays the chart series Navigator or Skipper expiration...

Страница 67: ...waypoint arrival radius and the current sound level of the alarm audio using a thermometer style indicator Alarms screen The ALARMS screen uses six menu keys CLEAR ALARM CHANGE SETTINGS DROP ANCHOR RAISE ANCHOR KEY BEEP OFF ON LOUDER and SOFTER to control the alarm functions Use the CLEAR ALARM key to clear the newest alarm after you ve viewed the alarm message and move the alarm message to the ol...

Страница 68: ... the audio of the 961 s keys except for the MOB key and the SAVE key these keys will always beep Use the LOUDER key to increase the volume of the alarm audio Use the SOFTER key to decrease the volume of the alarm audio Alarms contain information you should read as soon as possi ble including such information as a dragging anchor lost GPS signals or the upcoming arrival at a particular waypoint The...

Страница 69: ... display navigation and chart setup and func tions to load update delete charts set up the 961 s demo mode and view time information Setup menu screen The SETUP MENU screen uses six menu keys DISPLAY SETUP NAVIGATION SETUP CHART SCREEN SETUP CHART INVENTORY DEMO SETUP and TIME INFORMA TION to control setup customization Use the DISPLAY SETUP key to change the time zone and the time display format ...

Страница 70: ...on or off the display of range rings and the distance scale bar turn on or off the display of past trip legs and turn on the off the display of a chart update region on the CHART screen For more information about all of these options see Customizing the chart screen starting on page 4 35 Use the CHART INVENTORY key to load update any new charts delete any charts from the database and access all HC...

Страница 71: ... the 961 s control head s and processor as well as the self test status and software revision of the GPS and beacon receivers For more information about viewing product information see Viewing product information starting on page 14 2 Use the RECEIVER SETUP key to set the time for GPS speed averaging set the lowest usable satellite elevation view the version of the beacon receiver turn the DGPS sy...

Страница 72: ...ore information about using the DATABASES AND LOG key see Saving and restoring databases and system logs starting on page 14 10 STEER key The primary purpose of the STEER key is simple Use it to access either of two screens that help you steer precisely along your desired track to your active waypoint As you use them you ll probably develop a preference for one or the other Each press of the STEER...

Страница 73: ...your active waypoint if any distance and bearing from your present position to the active waypoint XTE shown numerically and graphically at the lower part of the screen SOG and COG and ETA and ETE Traditional steer screen Three dimensional 3 D steer screen The 3 D STEER screen shows a panoramic 3 D view with graphical and numerical data Graphically the 3 D STEER screen shows your active waypoint i...

Страница 74: ... view of nearby way points You can press the 961 s IN and OUT keys to zoom in and out on the 3 D STEER screen 3 D steer screen For in depth information about the 961 s steering function see Steering to a waypoint starting on page 10 2 TRIP key The primary purpose of the TRIP function is simple Use it to record today s trip as well as to establish future waypoints in the trip With the trip function...

Страница 75: ...creen By pressing the CURSOR PAD up and down you can see all past and future waypoints The TRIP screen has six menu keys GO TO NEW COORDS GO TO SELECTION ERASURES SAVE TRIP AS ROUTE STOP NAV RESUME NAV not shown if no active waypoint and DATE DIST BRG TIME that control the trip functions Use the GO TO NEW COORDS key to put new points in the trip go to them now or add them to the end of your trip U...

Страница 76: ...rip function see Using the Trip Function starting on page 11 1 WAYPTS ROUTES key Pressing the WAYPTS ROUTES key lets you create new way points routes tracks and avoidance points access sort and edit lists of stored waypoints routes tracks and avoidance points navigate to a stored waypoint and follow a stored route NOTE You can also create and store waypoints and routes directly from the CHART scre...

Страница 77: ... are completely blank if there s no position fix Until you store user defined waypoints in the database the WAYPOINTS screen will be completely blank Waypoints screen By pressing the CURSOR PAD left or right you can sort the waypoint list by each column the 961 highlights selected col umns with a vertical stripe a sort by the symbol column not titled lists waypoints by similar symbols a sort by th...

Страница 78: ...g lat lon coordinates or TDs Use the NEW WAYPT key to add a new waypoint to the list Use the COPY key to make a new waypoint by editing a copy of an existing one Use the EDIT key to edit a waypoint erase a waypoint For in depth information about waypoints see Creating Way points starting on page 6 1 Routes screen The ROUTES screen lists all your stored routes sorted by whether a route is marked fo...

Страница 79: ... by the SAVE column places that route at the top a sort by the NAME column lists routes alphabetically a sort by the MODIFIED column date last modified places most recent dates at the top a sort by the LENGTH column places the shortest routes at the top a sort by the PROXIMITY places routes closest to your present position at the top You can also search the list for a particular route by entering ...

Страница 80: ...isplay on the CHART screen you can display only one route on the CHART screen at a time Use the NEW ROUTE key to create a new route from the list of waypoints stored in the database and graphically view the new route as you cre ate it create a new route by telling the 961 to add waypoints to this route when you press the SAVE key Use the COPY key to make a new route by editing a copy of an existin...

Страница 81: ...ks screen By pressing the CURSOR PAD left or right you can sort the track list by each column the 961 highlights selected columns with a vertical stripe a sort by the CHT column marked for display on the CHART screen places that track at the top a sort by the COL column color groups same colors together a sort by the NAME column lists tracks numerically if named by number then alphabetically a sor...

Страница 82: ...t saving a new track immediately then stop saving at any time Use the EDIT key to change the description or name of an existing track permanently erase a track For in depth information about tracks see Introducing tracks starting on page 9 2 Avoidance points screen The AVOIDANCE POINTS screen lists all your stored named avoidance points by radius name distance and bearing and lat lon or TDs the di...

Страница 83: ...adius a sort by the NAME column yields an alphabetical list a sort by the DISTANCE or BRG bearing columns lists avoidance points in order of distance or bearing from your present position You can also search the list for a particular avoidance point by entering the first few characters of the category you re sorting by The AVOIDANCE POINTS screen has four menu keys TDS LT LN NEW AVOID COPY and EDI...

Страница 84: ...luminating the 961 s screen slowly dim after several thousand hours of use If you use the 961 for several hours each day try to keep the lighting level low when you don t actually need it for exam ple during twilight or nighttime hours Occasional users once a week or less don t need to worry about keeping the lighting level low Producing the high brightness needed for sunlight visibility creates h...

Страница 85: ...aypoint so the 961 will permanently retain it Pressing the SAVE key lets you save a new waypoint as a single waypoint or as multiple waypoints in a route or add your vessel s position to the end of the pre viously designated route For more information about using the SAVE key see Using the save key starting on page 4 15 MOB key Pressing the MOB key the first time instantly saves your posi tion as ...

Страница 86: ...rboard dialog box The 961 saves your position and displays it on the CHART screen as a waypoint with a symbol called MOBXX The MOB position has immediately become your active waypoint When navigating to an MOB waypoint the 961 automatically sets the chart s zoom level to its maximum detail ...

Страница 87: ...you press the WAYPTS ROUTES key you ll see the MOB waypoint in the list and MOB waypoints are also dis played on the 3 D STEER STEER and TRIP screens If you press the MOB key a second time before you arrive at this first MOB waypoint you ll have to press the YES GO NOW key to confirm because a second MOB keypress would save your latest position and make this your active waypoint instead If you ve ...

Страница 88: ...elections of data Using the cursor pad on the chart screen On the CHART screen you can move the CURSOR PAD in an up to down left to right or diagonal direction You can move the cursor diagonally by pressing between any two of its arrow indicators The harder you press the CURSOR PAD the faster the cursor moves To carefully move the cursor small dis tances on the CHART screen the easiest way is to p...

Страница 89: ...ntains a LEFT ARROW key and a RIGHT ARROW key which are used while entering data to move the flashing cursor to the character you want to change For example if you make a mistake when entering lat lon coordinates or waypoint and route names press the LEFT ARROW key to move the cursor a flashing red box that repre sents the place at which the next typed character will appear back to a previous char...

Страница 90: ...e Manual Rev D Menu keys Use the six MENU keys located in a vertical row on the right of the display screen for a variety of functions Each key s function depends specifically on which screen you re display ing each key s current function is shown right on the screen ...

Страница 91: ... chart screen 4 2 Displaying your vessel s position on a chart 4 4 Functions performed at the chart screen 4 4 Using the cursor on the chart screen 4 15 Customizing the chart screen 4 35 This chapter explains the 961 s electronic chart the chart views and their menu keys vessel and cursor functions and how to customize the chart display ...

Страница 92: ... as if you d changed from one paper chart to another Chart scale At the lower left hand side of the CHART screen is the 961 s chart scale box which shows the chart magnification A dis play of 1 1 indicates the largest magnification at which you can display the current chart As you zoom out this number changes to 1 2 1 4 1 8 and so on Understanding the chart screen Chart orientation The 961 display...

Страница 93: ...epends on the individual charts by default you aren t able to zoom in beyond the original scale of the paper chart Data from the chart CDs is displayed at scales from approxi mately nm to approximately 32 nm and many of these chart scales show a tremendous amount of detail for the areas they cover Many charts display their maximum detail at the nm scale level For charts with even higher detail lev...

Страница 94: ...ble chart If more than one is available the 961 tries to choose one that you ve marked as PREFER or one that s about at the same zoom in zoom out level as the chart you d been using For details about marking charts as PREFER see Common chart functions starting on page 13 60 Present position You can display your present position on the CHART screen at any time by pressing the CHART key from within ...

Страница 95: ...e a new route see Making a new route starting on page 4 22 Going to new coordinates To specify new coordinates from the CHART screen press the GO TO key and the GO TO COORDINATES dialog box appears The 961 displays your most recently used waypoint position as well as its distance and bearing If desired use the KEYPAD to enter new coordinates press the TDS LAT LON key to switch between displaying l...

Страница 96: ...new waypoint 1 From the CHART screen press the GO TO key 2 At the GO TO COORDINATES dialog box use the KEY PAD to enter the desired position coordinates or distance and bearing 3 Press the GO NOW key or press the CANCEL key to can cel On the CHART screen the 961 creates a waypoint named COORD to which you re now going and shows a track line to this new waypoint The 961 automatically removes any fu...

Страница 97: ... the last waypoint adding to the end of the trip will restart navigation To queue a waypoint 1 From the CHART screen press the GO TO key 2 At the GO TO COORDINATES dialog box use the KEY PAD to enter the desired position coordinates 3 Press the ADD TO END OF TRIP key or press the CAN CEL key to cancel The 961 creates a waypoint named COORD to which you ll navigate at the end of your current trip a...

Страница 98: ...the NEW CHART key With each brief keypress the 961 cycles through all the available charts for your specific location right on the CHART screen When you see the desired chart stop pressing the NEW CHART key As the 961 cycles through the available charts it selects a chart of the same scale being viewed until there s a better scale to choose from When there aren t any better charts to choose from t...

Страница 99: ...s and Reference Manual Rev D Page 4 9 Vessel position charts screen Cursor position charts screen You can view a list of all the charts in the database by pressing the ALL CHARTS key then return to the list of local charts by pressing the POSITION LIST key ...

Страница 100: ...chart by pressing the INFO key several times You can also change the charts usage mark charts as PRE FER NORMAL or AVOID for details about this function see Common chart functions starting on page 13 60 You can select a north up plotter grid by pressing the GRID key The 961 automatically displays a grid if you navigate into an area for which there isn t a chart The grid displays the lat lon coordi...

Страница 101: ... BAR at the bottom of the screen shows today s date and the number of stations in the coverage area If the STATION COVERAGE bar says there aren t any stations in the coverage area press the OUT key to zoom out to a wider cov erage area the GRAPH ON key will appear if there are too many stations zoom in To select the tide station nearest to your vessel or to the cur sor if you ve already pressed th...

Страница 102: ...plete details about the TideTrack function including how to view tides anywhere on the CHART screen see Under standing the TideTrack function starting on page 12 8 Clearing chart screen menu keys You may want to clear the CHART screen s menu keys to help reduce on screen clutter and show more of the area around your vessel To remove all the menu keys displayed on the CHART screen briefly press the...

Страница 103: ...any distance and bearing to the active waypoint a graphic and numeric display of your XTE how far off you are from your intended course line esti mated time of arrival ETA as day and time and estimated time enroute ETE in hours and minutes The 961 also displays the placement of your vessel relative to the desired track 5 the name and number of the chart in use its originator and manufacturer sourc...

Страница 104: ...s and Reference Manual Rev D Chart view A with two info bars Chart view B with two info bars You can remove each INFO BAR by pressing its corresponding INFO key Removing the INFO BARs reduces on screen clutter to show more of the area around your vessel To remove an ...

Страница 105: ... page 6 10 For details about using the SAVE key to save your vessel s position as part of a new route see Creating a route as you travel starting on page 8 10 Using the cursor on the chart screen On the CHART screen pressing the CURSOR PAD instantly displays a cursor shown as a square red window that lets you view other areas of the chart or designate points on the chart Using the cursor you can v...

Страница 106: ... hold the NEW CHART key to display the CURSOR POSI TION CHARTS screen and select the desired chart see Select ing new charts starting on page 4 8 To move the cursor a long distance on the chart it s often quicker to zoom out move the cursor then zoom in Once you ve pressed the CURSOR PAD you can now select objects on the CHART screen or else use the CURSOR key to perform a variety of tasks Selecti...

Страница 107: ...nges from red to green and the name of the waypoint appears in the CURSOR INFO BAR at the bottom of the screen When you select an object the CURSOR INFO BAR displays the following object name distance and bearing to the object position coordinates of the object lat lon and loran TDs if specified at the CHART SETUP screen Note that you can t select items that are actually printed on the chart such ...

Страница 108: ...SOR menu key after first pressing the CURSOR PAD you can perform the following tasks go directly to the cursor position add the cursor position to the end of your trip store the cursor position as a named waypoint store the cursor position as a named avoidance point store the cursor position as the first point of a new route and display it add the cursor position to the currently displayed route i...

Страница 109: ...ON dialog box appears Selected cursor position dialog box 2 If desired you can use the KEYPAD to change the cur sor s coordinates if not press the GO NOW key or press the CANCEL key to cancel The 961 creates a new temporary waypoint called COORD which isn t stored in the waypoint database instead it s placed into the trip where it replaces any future trip points Your present vessel position and ti...

Страница 110: ...OORD to the end of the trip and returns to the CHART screen The future trip leg is displayed in light blue on the CHART screen Nothing is erased from the trip If you were already past the end of your trip you ll immediately begin navigating to this new position as the active waypoint Making a new waypoint To store a new named waypoint at the chart location desig nated by the cursor 1 Press the CUR...

Страница 111: ...ase the entire NAME field press the CLEAR ENTRY key 4 Press the MAKE NEW WAYPOINT key or press the RETURN key to cancel The 961 stores the new waypoint and returns to the CHART screen showing the navigation information about this new waypoint in the CURSOR INFO BAR Making a new avoidance point You can create avoidance points with a user defined name and radius that are displayed on the CHART scree...

Страница 112: ...dance point name which is the letter W followed by four digits If you use the default avoidance point name you can always change the name later on the AVOIDANCE POINTS screen To erase the entire NAME field press the CLEAR ENTRY key 4 Press the MAKE NEW AVOID key or press the RETURN key to cancel The 961 stores the new avoidance point and returns to the CHART screen showing the navigation informati...

Страница 113: ... field or use the default waypoint name Waypoint names can have up to nine characters To clear the entire NAME field during data entry press the CLEAR ENTRY key 4 To name the route press the CURSOR PAD up to move the cursor to the ROUTE NAME field then use the KEY PAD to enter a route name route names can have up to 32 characters If you use the default route name you can always change the name lat...

Страница 114: ... the name of the currently displayed route Store as a waypoint for on chart route dialog box 3 If desired use the KEYPAD to change the default way point name if not press the ADD TO END OF ROUTE key The 961 returns to the CHART screen showing the added route waypoint To continue adding route waypoints keep moving the cursor to each desired location on the CHART screen then press the CURSOR key STO...

Страница 115: ... point not a named waypoint Why If you select for exam ple POINT 3 from the route you ll follow the remainder of the route after POINT 3 Instead if you select a named waypoint from the route for example WAYPT D you ll navigate only to that named waypoint To go directly to an existing route point and continue along the displayed route remember to first display the route on the CHART screen see Disp...

Страница 116: ... selected route point and the future trip as cop ied from the displayed route Your vessel s present posi tion and time have been inserted as a past trip point and any previously existing future trip points have been deleted Going to a selected trip point Selecting a past trip point takes you only to that point you won t follow subsequent past waypoints back Selecting the active or future trip poin...

Страница 117: ...en showing a track line to the selected point Adding a selected route to the end of your trip You can add an entire route or only part of a route to the end of your trip remember to first display the route on the CHART screen see Displaying a route on the chart screen starting on page 8 3 1 To add the entire route move the cursor to the beginning of the route and press the LEFT ARROW and RIGHT ARR...

Страница 118: ...ess the LEFT ARROW and RIGHT ARROW keys to highlight the desired object on the CHART screen 2 Press the CURSOR menu key The SELECTED ROUTE POINT or SELECTED ROUTE LEG dialog box appears Selected route point dialog box 3 If desired to reverse the direction of the route press the REVERSE DIRECTION key if not check in the dialog box that you re adding the desired point or leg to the end of the trip t...

Страница 119: ...SOR menu key The SELECTED TRIP LEG dialog box appears Selected trip leg dialog box 3 Press the GO NOW key or press the CANCEL key to can cel The 961 returns to the CHART screen showing the leg joined as the new desired track and your present vessel position and time are inserted as a past trip point The JOIN LEG dialog box appears reminding you to press the SAVE key when you reach the point where ...

Страница 120: ...direction of the route press the REVERSE DIRECTION key if not press the GO NOW key or press the CANCEL key to cancel The 961 returns to the CHART screen showing the leg joined as the new desired track and inserts your present vessel position and time as a past trip point The JOIN LEG dialog box appears reminding you to press the SAVE key when you reach the point where you join the route leg pressi...

Страница 121: ...OR PAD to move the cursor to the desired location of the waypoint to be inserted The 961 displays the tentative location of the new route or trip leg 4 Press the DONE key to insert the new point or press the CANCEL key to cancel The 961 returns to the CHART screen showing the new point inserted into the selected route leg or trip leg Editing a waypoint You can select an existing waypoint route poi...

Страница 122: ...ing the Chart Screen Page 4 32 961 Operations and Reference Manual Rev D Selected waypoint dialog box 3 Press the EDIT key The 961 returns to the CHART screen showing the selected waypoint Edit selected waypoint dialog box ...

Страница 123: ...rip the 961 will always ask you whether you want to use the new location of this waypoint in all routes and the trip or keep the original coordinates as unnamed points in the trip or routes This USE SELECTED DIALOG box won t appear if you selected a route point or a trip point Use selected waypoint dialog box To use the new coordinates press the USE NEW COORD IN ROUTES key to leave routes and the ...

Страница 124: ...61 s database of waypoints 1 On the CHART screen press the CURSOR PAD to select the point you want to delete You must use the LEFT ARROW and RIGHT ARROW keys to select for example ROUTE POINT 6 not WAYPOINT XX to be able to delete the waypoint from the route or the trip The SELECTED ROUTE POINT or SELECTED TRIP POINT dialog box appears Selected route point dialog box 2 Press the DELETE POINT key T...

Страница 125: ... to display data in spe cific ways To access the CHART SETUP screen 1 Press the STAR key to access the SETUP MENU screen 2 Press the CHART SCREEN SETUP key to access the CHART SETUP screen Chart setup screen The 961 s CHART SETUP screen lets you turn on or off the fol lowing features individual waypoint symbols waypoint names and symbols clearzoom track predictor line loran TDs on INFO bars ...

Страница 126: ...nt to display waypoint symbols without their names set the WAYPT DISPLAY option to SYMBOL Turning off way point names is useful for eliminating clutter especially because names may overlap when you re displaying an area with multiple waypoints grouped closely together ClearZoom The 961 s ClearZoom feature lets you set the clarity of a chart for when you aren t viewing the chart at a 1 1 scale That...

Страница 127: ...u can always find your vessel by looking dead center into the small est range ring Two they graphically illustrate the distance in any direction from a point on the chart to your vessel You can turn range rings on or off When on the 961 displays the range rings as circles around your vessel The radius of the rings is shown in the lower left corner of the screen in user selectable units which you s...

Страница 128: ...oint symbols a slightly different procedure 1 At the CHART SETUP screen press the CURSOR PAD to highlight the option you want to change then press the EDIT key The help text at the bottom of the screen offers additional information about this chosen item 2 Press the CURSOR PAD left or right to select the desired value then press the ACCEPT key or press CANCEL to leave the value unchanged 3 To retu...

Страница 129: ...ing Position Coordinates Using GPS to determine position 5 2 Using DGPS to determine position 5 4 Understanding Loran C 5 7 Using Phantom loran to determine position 5 10 This chapter describes the 961 s most important navigation function determining your position ...

Страница 130: ...EER screen To display SOG and COG on either the STEER or 3 D STEER screens press the STEER key once or twice SOG and COG readings result from ongoing measurements derived from the satellite signals GPS speed is updated every second You can set the 961 to display its SOG and COG read ings more smoothly by setting the GPS speed averaging value up to 10 seconds Increasing this averaging time however ...

Страница 131: ...s looking down from above with East to your right and West to your left Also displayed on the screen is the following GPS data ACCURACY HDOP horizontal dilution of precision Accuracy is the estimated accuracy of the GPS system to be expected at the current time Your position readings should be more accurate than this estimate 95 percent of the time HDOP is a technical measure of how good the satel...

Страница 132: ...tary users of the GPS system With good DGPS corrections your 961 should provide better than four meter accuracy repeatable and absolute 95 percent of the time SOG readings accurate to 0 1 knot and COG measurements accurate to about 0 5 degree For more information about GPS see Using GPS to determine position starting on page 5 2 NOTE When using DGPS as your navigation source your 961 s position co...

Страница 133: ...ndicate poor reception SIGNAL is the actual strength of the received signal and should be as high as possible Signal strength varies with the distance from the differential transmitter NOISE is the level of static caused by lightning and other atmospheric effects and should be low for best results The range of noise level meanings are outlined in Table 2 Noise level meanings below For information ...

Страница 134: ...r isn t installed BEACON UNHEALTHY The differential beacon transmitter reports technical problems UNHEALTHY SATELLITES Data received from the satellites is unreliable BAD UDRE IODE Data received from the satellites is unreliable ACQUIRING SATELLITES Either the GPS receiver can t operate until it has received ephemeris data from the satellites or else the receiver isn t tracking enough satellites y...

Страница 135: ...ince the 1970s loran users have relied on its ability to repeatedly return them to previously saved locations with extreme accuracy This capability has been especially appreciated by captains of com mercial fishing vessels since each subsequent visit to a lobster trap or buoy would be virtually on the mark saving valuable time and money During that time loran s repeatable accuracy was superior to ...

Страница 136: ...y turned on GPS provides an absolute accuracy of about 300 feet 95 percent of the time almost everywhere in the world under virtually all conditions far surpassing the 600 foot absolute accuracy of a good loran receiver under ideal conditions If you re used to relying on a loran receiver s repeatable accu racy to return you to within one vessel s length of a lobster trap or buoy time after time yo...

Страница 137: ... from the secondary loran sta tions These signals provide a basis for a navigational system that s totally independent of the GPS system The 961 automatically converts GPS coordinates to loran TDs which can be viewed on the 961 s CHART screen at any time as well as other screens This conversion is known as North star s Phantom loran feature With Phantom loran you can display your position as TDs o...

Страница 138: ...coordinates may be displayed as TDs and all navigation functions may be used as if the unit were actually receiving loran signals Remember however that these calcu lated TDs won t exactly match the positions of previously recorded TD coordinates that you obtained from actual loran signals In most areas TD errors shouldn t exceed one micro second however larger errors are possible in areas for whic...

Страница 139: ...n INFO keys until you display the loran data To return to displaying GPS only coordinates repeat the above steps but turn the setting of LORAN INFO BARs to OFF Setting Phantom loran GRI You can choose the preferred four digit loran GRI to use when the 961 converts lat lon coordinates to Phantom loran TDs For details about setting the loran GRI see Preferred loran GRI starting on page 13 19 ...

Страница 140: ...Chapter 5 Understanding Position Coordinates Page 5 12 961 Operations and Reference Manual Rev D ...

Страница 141: ...ting the list of waypoints 6 5 Searching for a waypoint 6 7 Creating a new waypoint 6 7 Editing a waypoint 6 14 Erasing a waypoint 6 16 Changing the display of coordinates 6 16 This chapter describes how to display and edit waypoints already in the 961 s database create user defined waypoints and manage the waypoint database ...

Страница 142: ...s starting on page 3 2 Unlike waypoints you can t create nav aids they originate on the chart CDs which are installed and stored on the 961 s hard disk as part of the unit s electronic chart Although you can t create nav aids you can navigate to them Many of the 961 s waypoint functions can also be performed for nav aids Why use waypoints Here are some of the functions you can perform with way poi...

Страница 143: ... not at all see Changing the chart setup starting on page 13 23 To see waypoints on the CHART screen press the CHART key Chart screen with waypoints All the waypoints in your area are displayed on the CHART screen As you press the CURSOR PAD to move around the chart the chart view displays as symbols all the waypoints positioned on the screen Listing on the WAYPOINTS screen which lists waypoints s...

Страница 144: ...ypoint symbols and names starting on page 13 25 NOTE Some waypoints don t have an actual name and don t appear on the waypoint list because they were created as points in a route or in the trip For example COORD is the default name automatically assigned by the 961 to a waypoint created when selecting a location on the CHART screen and navigating to it This point is labelled COORD on the CHART scr...

Страница 145: ...waypoints In addition to the WAYPOINTS and CHART screens you also can display past active and future waypoints in today s trip on the TRIP screen and you can display the active waypoint the waypoint the 961 is navigating to on the CHART screen INFO BARs and on both STEER screens These screens are explained in separate chapters however For details about dis playing waypoints on the TRIP screen see ...

Страница 146: ... PAD left or right to highlight the DISTANCE column and those waypoints will appear in order at the top of the list The 961 automatically updates the DISTANCE column as you continue to navigate However the order of the list won t be resorted while you re displaying the list you must leave and return to viewing the WAYPOINTS screen to update the sort ing order Displaying local waypoints To show the...

Страница 147: ...ugh all the sym bols Each LEFT ARROW or RIGHT ARROW keypress will highlight a different symbol in the SEARCH field To search for waypoints by name press the CURSOR PAD left or right to highlight the NAME column then use the KEYPAD to enter the first few characters as necessary of the waypoint s name To search for waypoints by distance or bearing press the CURSOR PAD left or right to highlight eith...

Страница 148: ...sel to the precise position where you pressed the MOB key For details see MOB key starting on page 3 27 Creating a new waypoint graphically You can create a new waypoint right on the CHART screen To store the cursor location as a waypoint 1 On the CHART screen press the CURSOR PAD to move the cursor to the desired location to establish a precise position for this new waypoint press the IN or OUT k...

Страница 149: ...eating Waypoints 961 Operations and Reference Manual Rev D Page 6 9 Selected cursor position dialog box 3 Press the STORE AS WAYPT ROUTE key The STORE AS A WAYPOINT dialog box appears Store as a waypoint dialog box ...

Страница 150: ... this waypoint after you ve finished storing its coordinates here on the CHART screen go to the WAYPOINTS screen and edit the way point 5 Press the MAKE NEW WAYPOINT key or press the RETURN key to cancel The 961 stores the new waypoint and returns to the CHART screen showing the navigation information about this new waypoint in the CURSOR INFO BAR To return to your vessel s position press the VESS...

Страница 151: ...n the 961 s database 3 Press the SAVE AS WAYPOINT key or press the CANCEL key to cancel As long as the VESSEL POSITION dialog box is still on the screen pressing the SAVE key again instead of the SAVE AS WAYPOINT key has the same effect as pressing the SAVE AS WAYPOINT key The 961 stores the coordinates that you just saved and returns to whatever screen you were previously viewing The 961 inserts ...

Страница 152: ...sses and then press the SAVE key the 961 automat ically saves the point in this route the timed VESSEL POSITION dialog box automatically disappears after nine seconds unless you press any menu key With this feature you can save a sequence of waypoints in a route with only one keypress for each new way point As long as the VESSEL POSITION dialog box is up you can press the SAVE key again and again ...

Страница 153: ...ft after highlighting the SYMBOL field The waypoint description can be up to 32 characters long 4 To store the new waypoint press the DONE key or press CANCEL to cancel and return to the WAYPOINTS screen The new waypoint is now permanently stored in the data base however you can edit or erase it any time Copying and changing an existing waypoint If a new waypoint will be similar to an existing one...

Страница 154: ...er To select and edit a waypoint 1 At the WAYPOINTS screen press the CURSOR PAD up or down to select the desired waypoint 2 After you ve selected a waypoint press the EDIT key Press the CURSOR PAD left or right to move from field to field changing the data in any of those fields including the comment line as desired 3 When finished press the DONE key to store the changes to the database and return...

Страница 155: ...sk if you want to keep the original coordinates as unnamed points in the trip or routes if so press the KEEP OLD COORDS key or use the new coor dinates instead press the USE NEW COORDS key The 961 returns to the CHART screen showing the new location of the waypoint and its position data in the CUR SOR INFO BAR To update a waypoint s coordinates to be the same as your vessel s position 1 At the CHA...

Страница 156: ...tes When you re viewing the WAYPOINTS screen you can view the position of waypoints in three different ways distance and bearing lat lon loran time differences TDs Distance and bearing DISTANCE BRG is always shown often the most useful way since it may be easier to visualize three miles north than the digits of lat lon or TDs These two col umns are completely empty if the 961 has no position fix Y...

Страница 157: ...oidance points 7 7 Searching for an avoidance point 7 8 Creating a new avoidance point 7 9 Editing an avoidance point 7 13 Erasing an avoidance point 7 14 Changing the display of coordinates 7 14 This chapter describes how to display and edit avoidance points already in the 961 s database create user defined avoid ance points and manage the avoidance point database ...

Страница 158: ...e quickly add any avoidance point copy an existing avoidance point to create a new one edit or erase avoidance points How are avoidance points used The 961 always checks where your vessel is in relation to nearby avoidance points and alerts you whenever you re near them As soon as your vessel is on a course line with an avoid ance point the yellow avoidance point alarm appears on all screens to al...

Страница 159: ...l will be centered inside a visible red circle Unlike waypoints you can t control the appearance of avoidance points on the CHART screen the 961 always displays all avoidance points with this symbol and their user defined names CAUTION The 961 s avoidance point alarm is only an extra safety feature that helps inform you of possible hazards It doesn t replace the per son on watch local knowledge pr...

Страница 160: ...points Any avoidance points in your area are displayed on the CHART screen As you press the CURSOR PAD to move around the CHART screen the chart view displays all the avoidance points in a particular area Displaying avoidance points on the 3 D steer screen On the 3 D STEER screen avoidance points are displayed as the red circle whose size is defined by the user selectable radius ...

Страница 161: ...eference Manual Rev D Page 7 5 3 D steer screen with avoidance points List display Displaying avoidance points on the avoidance points screen To display a list of named avoidance points press the WAY PTS ROUTES key until you reach the AVOIDANCE POINTS screen ...

Страница 162: ...e larger the list the larger the slider the smaller the list The slider also indicates your position in the list i e at the top in the middle at the bottom or any where else in between The radii of the avoidance points can be displayed in either yards or in meters depending upon which distance and speed units you ve selected on the 961 s DISPLAY SETUP screen The radii of avoidance points can range...

Страница 163: ...eft Note that avoidance points with the same radius are also sorted alpha betically Sorting by name To show avoidance points in alphabetical order press the CURSOR PAD left or right to highlight the NAME column Avoidance points with a special character or a number as the first character appear at the top of the list Sorting by distance To show the avoidance points near your present position press ...

Страница 164: ...re displaying the list you must either change columns or leave and return to viewing the AVOID ANCE POINTS screen to update the sorting order Searching for an avoidance point If you ve stored hundreds of avoidance points scrolling through the entire list to find the one you want may be tedious At the AVOIDANCE POINTS screen you can search for avoidance points by the same categories as the sorting ...

Страница 165: ...n by moving the cursor to any position and storing it numerically by entering the coordinates at the AVOID ANCE POINTS screen Creating a new avoidance point graphically You can create a new avoidance point right on the CHART screen To store the cursor location as an avoidance point 1 On the CHART screen press the CURSOR PAD to move the cursor to the desired location to establish a precise position...

Страница 166: ...ng Avoidance Points Page 7 10 961 Operations and Reference Manual Rev D Selected cursor position dialog box 3 Press the STORE AS WAYPT ROUTE key The STORE AS A WAYPOINT dialog box appears Store as a waypoint dialog box ...

Страница 167: ...s position press the VESSEL key Creating a new avoidance point at the avoidance points screen entering coordinates To add a new avoidance point at the AVOIDANCE POINTS screen 1 At the AVOIDANCE POINTS screen press the NEW AVOID key The 961 creates a blank line just above the currently selected avoidance point and the flashing cursor goes to the NAME field Your present position if known is already ...

Страница 168: ...existing one you can copy the existing avoidance point then change its charac teristics to create a new avoidance point To copy and change an existing avoidance point 1 At the AVOIDANCE POINTS screen press the CURSOR PAD up or down to highlight the avoidance point you want to copy then press the COPY key The 961 creates a duplicate avoidance point just above the highlighted avoidance point and the...

Страница 169: ...eld to field changing the data in any of those fields including the comment line as desired 3 When finished press the DONE key to store the changes to the database and return to the AVOIDANCE POINTS screen or press CANCEL to return to the AVOIDANCE POINTS screen Editing an avoidance point at the chart screen Editing an avoidance point at the CHART screen lets you select an avoidance point and move...

Страница 170: ...om the AVOIDANCE POINTS screen an avoidance point that s still in the future trip you ll still see the yellow and red avoidance point alarms until you manually clear these alarms at the ALARMS screen Changing the display of coordinates When you re viewing the AVOIDANCE POINTS screen you can view the position of avoidance points in three different ways distance and bearing lat lon loran time differ...

Страница 171: ...15 sent the best pair of loran secondary stations GRI can be set to the user s preferred GRI as defined at the 961 s NAVIGA TION SETUP screen see Preferred loran GRI starting on page 13 19 Not all positions have corresponding TDs In these cases dashes are shown in the GRI and TD fields ...

Страница 172: ...Chapter 7 Creating Avoidance Points Page 7 16 961 Operations and Reference Manual Rev D ...

Страница 173: ...Displaying routes 8 3 Sorting the list of routes 8 6 Searching for a route 8 7 Creating a new route 8 8 Editing a route 8 17 Erasing a route 8 24 This chapter describes how to display and edit routes already stored in the 961 s database create user defined routes and manage the route database ...

Страница 174: ...island guidance on a single long trip with various legs see below to food and fuel stops or other temporary destina tions along the way How are routes used You can follow an entire route or just one or more of its legs in a forward or reverse direction Whether you follow an entire route or one or more route legs the 961 enters a copy of the route into the 961 s trip function Then you can always mo...

Страница 175: ...ROUTE A To display a route on the CHART screen you must first mark the route for display 1 Press the WAYPTS ROUTES key to access the ROUTES screen 2 Press the CURSOR PAD up or down to select the desired route 3 To mark the route for display press the ON CHART key to unmark the route for display press the OFF CHART key 4 Press the CHART key Table 6 Displaying routes Display type Display location Gr...

Страница 176: ...rection Displaying a route s name on the chart screen You assign each route a name when you create it see Creat ing a new route starting on page 8 8 To see the name of the route on the CHART screen press the CURSOR PAD to select any part of the route either a leg or a point and its name appears in the CURSOR INFO BAR if necessary press the LEFT ARROW key or RIGHT ARROW key List display Displaying ...

Страница 177: ...th and proximity fields will contain dashes To select a route indicated by the horizontal stripe press the CURSOR PAD up or down To the right of the PROXIMITY column is a red vertical slide bar which is relative to the size of the list of routes The smaller the slider the larger the list the larger the slider the smaller the list The slider also indicates your position in the list i e at the top i...

Страница 178: ... in it conversely displaying a route on the CHART screen doesn t mean that you re saving waypoints into it The two functions work independently If desired however you can have the 961 display a route and be marked to accept SAVE keypresses 1 At the ROUTES screen press the CURSOR PAD up or down to select the desired route then press the ON CHART key 2 Press the EDIT key then press the START SAVING ...

Страница 179: ...orting by date To show routes sorted by date of modification press the CUR SOR PAD left or right to highlight the MODIFIED column and the most recently modified routes will appear at the top of the list Sorting by length To show the routes sorted by length press the CURSOR PAD left or right to highlight the LENGTH column and the shorter routes will appear at the top of the list Sorting by proximit...

Страница 180: ...ew waypoints on any screen from existing waypoints on the ROUTES screen by editing a copy of an existing route from the trip log Creating a new route graphically One way to create a route is to make a new route right at the CHART screen To start creating a route on the chart using the cursor 1 On the CHART screen press the CURSOR PAD to move the cursor to the desired location then press the CUR SO...

Страница 181: ...the default way point name Waypoint names can have up to nine charac ters If you make a mistake during data entry press the CLEAR ENTRY key 4 To name the route press the CURSOR PAD up to move the cursor to the ROUTE NAME field then use the KEY PAD to enter a route name Route names can have up to 32 characters and must be different from all other route names in the 961 s database If you use the def...

Страница 182: ...played route Store as a waypoint with on chart route dialog box 3 If desired use the KEYPAD to change the default way point name if not press the ADD TO END OF ROUTE key The 961 returns to the CHART screen showing the dark blue route line with each newly added route waypoint Creating a route as you travel Another way to create a route is simply to travel the length of the desired route pressing th...

Страница 183: ...me for the first waypoint or use the default name SAVEDXX 3 If desired press the CURSOR PAD down to select the ROUTE NAME field and use the KEYPAD to enter the name of the new route you want to start saving or you can use the default route name 4 Press the START SAVING ROUTE key The 961 returns to the CHART screen 5 As you reach the location of each new desired waypoint press the SAVE key A timed ...

Страница 184: ...screen go to the ROUTES screen and mark the new route for display by selected it and pressing the ON CHART key Repeat step 5 at each point where you want to add a waypoint to the route To stop saving waypoints to this route at any time press the SAVE key then within the nine second period press the STOP SAVING ROUTE key You can perform these same functions while you re displaying the ROUTES screen...

Страница 185: ...the limit you had set using the SAVE WPTS function at the DISPLAY SETUP screen At this limit the old waypoint with this same name will be overwritten This wrap around feature keeps the waypoint list from getting filled with SAVED waypoints If the old waypoint was in the trip or in a route its coordinates will be kept there as an unnamed waypoint To choose how many SAVED waypoints the 961 retains b...

Страница 186: ...them to the new route the left side will show a graphical representation of this route as you add points to it To the right of the NEXT LEG column is a red vertical slide bar which is relative to the size of the list of waypoints in the route as you create it The smaller the slider the larger the list the larger the slider the smaller the list The slider also indicates your position in the list i ...

Страница 187: ...d waypoint When you ve finished adding waypoints press the DONE key to return to the ROUTES screen The route is dis played in the list To change this route see Editing a route at the routes screen starting on page 8 17 NOTE You may want to make your dock the first waypoint of a route This ensures that when you reverse the route the 961 can help guide you the entire way home not to a last waypoint ...

Страница 188: ...ROUTE screen Saving the trip as a route If at any time you decide to save the sequence of waypoints in the trip you can save and store your entire current trip as a route Before saving the trip however you may want to erase unwanted waypoints from it see Erasing the trip starting on page 11 12 1 At the TRIP screen press the SAVE TRIP AS ROUTE key The SAVE THE TRIP AS A ROUTE dialog box appears Sav...

Страница 189: ...ute by using the route editing function You can edit a route at the ROUTES screen or at the CHART screen Editing a route at the routes screen At the EDIT ROUTE screen you can change a route in the fol lowing ways change its name insert waypoints at the beginning insert waypoints at the end insert waypoints within a route leg delete waypoints To edit a route on the ROUTES screen 1 Press the CURSOR ...

Страница 190: ... 8 Creating Routes Page 8 18 961 Operations and Reference Manual Rev D Edit the route dialog box 2 If desired change the route name then press the EDIT ROUTE key The EDIT ROUTE screen appears Edit route screen ...

Страница 191: ...y auto repeat which moves you up and down the list more quickly than single keypresses You can either delete individual waypoints or insert additional waypoints in each leg You can insert waypoints at the beginning middle or end of a route You select waypoints to insert into the route from the list at the bottom of the screen To select these waypoints from the 961 s database press the CURSOR PAD u...

Страница 192: ...ove 2 If the end of the route isn t already selected press the MOVE DOWN key to highlight the end of the route remember don t highlight the last waypoint at the bot tom half of the screen press the MOVE DOWN key to highlight the end of the route displayed at the top half of the screen 3 Press the INSERT key to insert the selected waypoint at the end of the route 4 When finished press the DONE key ...

Страница 193: ...phically move waypoints anywhere in a route graphically add waypoints to a route leg graphically add waypoints to the end of a route delete waypoints from the route Graphically moving a route s waypoints 1 On the ROUTES screen press the CURSOR PAD up or down to select the desired route 2 To display the route on the CHART screen press the ON CHART key then press the CHART key 3 At the CHART screen ...

Страница 194: ...ve to press the LEFT ARROW and RIGHT ARROW keys 4 Press the CURSOR menu key then press the EDIT key 5 Press the CURSOR PAD to move the cursor to the desired location If desired you may select a named waypoint As you move the cursor a light gray line indicates the location of the new legs to and from the new waypoint 6 To insert the new waypoint at the cursor position press the DONE key The 961 ret...

Страница 195: ... on the CHART screen press the ON CHART key then press the CHART key 1 At the CHART screen press the CURSOR PAD to select the named waypoint you want to add to the route Note that you may have to use the LEFT ARROW or RIGHT ARROW key to select a named waypoint 2 At the SELECTED WAYPOINT dialog box press the ADD TO END OF ROUTE key The 961 returns to the CHART screen Graphically deleting route wayp...

Страница 196: ...g box appears Selected route point dialog box 5 Press the DELETE POINT key The 961 returns to the CHART screen showing the route with the point deleted Erasing a route At the ROUTES screen you can permanently erase an entire route from the 961 s database 1 At the ROUTES screen press the CURSOR PAD up or down to select the desired route 2 Press the ERASE key The ERASE ROUTE FROM SYSTEM dialog box a...

Страница 197: ...Chapter 8 Creating Routes 961 Operations and Reference Manual Rev D Page 8 25 3 To erase the route press the YES key or press NO to can cel The 961 deletes the route and returns to the ROUTES screen ...

Страница 198: ...Chapter 8 Creating Routes Page 8 26 961 Operations and Reference Manual Rev D ...

Страница 199: ... Tracks Introducing tracks 9 2 Displaying tracks 9 2 Sorting the list of tracks 9 6 Creating a new track 9 6 Editing a track 9 10 Erasing a track 9 12 This chapter introduces the 961 s track function and describes how to display create and edit individual tracks ...

Страница 200: ... The 961 saves track data whenever the unit is on and calculat ing GPS position and even when you re vessel isn t moving When you re in demo mode the 961 records your vessel s true positions not the demo positions Why use a track By displaying one or more of the named tracks on the CHART screen you can graphically see everywhere your vessel has been during the time represented by that particular t...

Страница 201: ... display a track on the CHART screen 1 Press the WAYPTS ROUTES key to access the TRACKS screen 2 Press the CURSOR PAD up or down to select the desired track then press the ON CHART key to mark the chart for graphical display if you change your mind press the OFF CHART key 3 Press the CHART key The CHART screen appears Listing on the TRACKS screen which sorts a list of tracks by whether the track i...

Страница 202: ...rack on your CHART screen you may have to press the OUT key or the IN key or press the CURSOR PAD to move into the track s area or even press the NEW CHART key to choose another chart You identify a track by its designated color Unlike a route a track can t be selected on the CHART screen List display Displaying a track on the tracks screen To display a list of tracks on the TRACKS screen press th...

Страница 203: ...s marked for display on the CHART screen and its color name start date and time and end date and time If entered a description of the selected track appears in the description field near the bottom of the screen and details about the extent of the track appear at the bottom of the screen To select a track indicated by the horizontal stripe press the CURSOR PAD up or down To the right of the END co...

Страница 204: ...ll appear at the top of the list Sorting by color To show tracks sorted by color press the CURSOR PAD left or right to highlight the COL column and similar colors will be listed together Sorting by name To show tracks in alphabetical order press the CURSOR PAD left or right to highlight the NAME column Tracks with a spe cial character or a number as the first character appear at the top of the lis...

Страница 205: ...d for the new track appears on the screen and the cursor goes to the NAME field The END field is set to the present date and time and the START field is set to 24 hours earlier than now New track screen 2 Use the KEYPAD to enter a name for the new track or use the default name which starts with a T followed by four digits The name can be up to 15 characters 3 To adjust the start date and time pres...

Страница 206: ...lect a desired date To change the end hour press the DATE key then press the ARROW keys to select a desired hour To change the minute press the HOUR key then press the ARROW keys to select a desired minute You can t set the end time past the present the RIGHT ARROW key won t take the end date and time into the future 5 To set the desired color press the NEXT COLOR key to cycle through a selection ...

Страница 207: ...nd the END field is dashed out which means that the 961 is now saving posi tion data to this track In the DESCRIPTION field not labelled at the bottom of the screen the 961 tells you that data is being saved to a new track and updates this new track s number of positions and range of minutes and seconds or hours and days every five seconds 2 To stop saving data to this track press the STOP SAVING ...

Страница 208: ...the TRACKS screen Editing a track at the tracks screen At the EDIT TRACK screen you can change a track in the fol lowing ways change its name change its color change its description You can t change the start or end date and time of a track that has already been defined and saved To change a stored track s name color or description 1 At the TRACKS screen press the CURSOR PAD up or down to select t...

Страница 209: ...and resume To change the color press the NEXT COLOR key at any time To change the user entered description press the CUR SOR PAD left or right until the red cursor flashes in the DESCRIPTION field not labelled at the bottom of the screen then use the KEYPAD to change the description if you make a mistake while changing the description you can press the CLEAR ENTRY key to clear the field and resume...

Страница 210: ...e a track from the 961 s database 1 At the TRACKS screen press the CURSOR PAD up or down to select the desired track 2 Press the EDIT key 3 Press the ERASE key 4 At the ERASE TRACK FROM SYSTEM dialog box press the YES key to erase the track or press NO to cancel the erase operation The 961 erases the track and returns to the TRACKS screen ...

Страница 211: ... screen 10 17 Restarting the track 10 19 This chapter describes how to navigate from the 961 s vari ous screens including how to use the steering screens to steer to a waypoint and around an avoidance point designating a route to follow from the ROUTES screen or the CHART screen using point and shoot navigation on the CHART screen navi gating from the WAYPOINTS screen and restarting the track if y...

Страница 212: ...en using a panoramic perspec tive view graphically displays your vessel in relation to nearby waypoints as well as avoidance points Both screens help guide you precisely along a course line for example following a harbor channel or a line between shoals and sandbars to an active waypoint You can choose whichever screen you prefer Of course you can always access the information listed above on the ...

Страница 213: ...he standard STEER screen is a simplified version of the 3 D STEER screen displaying the same numeric information but without the perspective view of the course line and nearby waypoints and avoidance points Displaying the 3 D steer screen To display the 3 D STEER screen press the STEER key twice if necessary ...

Страница 214: ...for precision steering your position and COG relative to the desired track The 3 D STEER screen graphically displays nearby waypoints including any unnamed waypoints in the trip and in whatever route is cur rently displayed on the CHART screen as well as your active waypoint shown with a green flag or red if an MOB way point if any Only waypoints within a certain number of miles are shown on the 3...

Страница 215: ...ion the orientation of your black vessel symbol indi cates the direction you re actually travelling which may not be the same as your heading if any current or wind is present when the black vessel points parallel to the course line you re keeping a constant distance from the line when the black vessel points away from the course line you re moving farther from the line when the black vessel point...

Страница 216: ... can start following a route directly from the ROUTES screen First select the route to follow You can then follow the route in either a forward or reverse direction in three different ways follow the selected route now you choose a starting way point join any leg of the route then follow the rest of the route add the route starting with a selected waypoint to the end of your trip NOTE You can also...

Страница 217: ...d Route Navigation 961 Operations and Reference Manual Rev D Page 10 7 Routes screen 2 Press the CURSOR PAD up or down to select the desired route then press the FOLLOW key The FOLLOW ROUTE screen appears Follow route screen ...

Страница 218: ...TE screen illustrates how you ll begin following the route Note that it illustrates a sam ple route not the specific route you chose when you select a starting waypoint to go directly to the graphic shows how you ll navigate to it when you select a starting leg to join with the graphic shows how you ll join the leg The length of the route and the number of waypoints compris ing it are also display...

Страница 219: ...ng a leg of a route You can join a route leg and follow the rest of the route rather than go directly to a waypoint 1 At the FOLLOW ROUTE screen press the CURSOR PAD up or down to select the route leg you want to join Note that you can reverse the direction of the selected route by pressing the REVERSE DIR key 2 Press the JOIN NOW key The 961 asks you to confirm that you ll remember to press the S...

Страница 220: ...URSOR PAD down to scroll the list of future waypoints Navigating from the chart screen Following a route from the chart screen You can follow a route right from the CHART screen To do so you must first mark the route for display but then you simply select it on the CHART screen and choose from the following three options follow the selected route now you select a starting way point join any leg of...

Страница 221: ...ES screen press the CURSOR PAD up or down to select the desired route 2 To display the route on the CHART screen press the ON CHART key then press the CHART key 3 On the CHART screen press the CURSOR PAD to select the starting waypoint of the route The name of the selected route point must appear in the CURSOR INFO BAR at the bottom of the screen if neces sary press the LEFT ARROW and RIGHT ARROW ...

Страница 222: ... CURSOR PAD up or down to select the desired route 2 To display the route on the CHART screen press the ON CHART key then press the CHART menu key 3 On the CHART screen press the CURSOR PAD to select the starting leg of the route The name of the selected route leg must appear in the CURSOR INFO BAR at the bottom of the screen if neces sary press the LEFT ARROW and RIGHT ARROW keys 4 Press the CURS...

Страница 223: ...screen press the CURSOR PAD to select the starting point or starting leg of the route The name of the selected route must appear in the CUR SOR INFO BAR at the bottom of the screen if necessary press the LEFT ARROW and RIGHT ARROW keys To add the entire route select POINT 1 of the desired route to add only part of the route select the desired POINT and the 961 will add the route starting at this p...

Страница 224: ...of the following select existing waypoints on the CHART screen and navi gate to them one at a time or add them to the end of your trip create and navigate to entirely new waypoints the cursor locations or add them to the end of your trip Going to an existing waypoint 1 Press the CURSOR PAD to select a waypoint on the CHART screen then press the CURSOR menu key The SELECTED WAYPOINT dialog box appe...

Страница 225: ... were already past the end of the trip you ll immediately begin navigat ing along the leg to the new waypoint Going directly to any location on the chart Using the cursor on the CHART screen you can go to an entirely new waypoint 1 Press the CURSOR PAD to move the cursor to the desired location on the CHART screen to establish a precise posi tion press the IN or OUT keys to zoom the chart view in ...

Страница 226: ...d in the waypoint database and that all unnamed waypoints are labelled as COORD Adding a location on the chart to the end of the trip 1 Press the CURSOR PAD to move the cursor to the desired location on the CHART screen to establish a precise posi tion for this new waypoint press the IN or OUT keys to zoom the chart view in or out 2 Press the CURSOR menu key The SELECTED CURSOR POSITION dialog box...

Страница 227: ...screen Instead of selecting a waypoint at the CHART screen you may prefer to select one from a list of existing waypoints displayed on the WAYPOINTS screen After you select a waypoint you can go to it now or add it to the end of your trip Going to a selected waypoint now 1 Press the WAYPTS ROUTES key to access the WAY POINTS screen Because the waypoints you navigate to are usually nearby the 961 a...

Страница 228: ...ran TDs 3 Press the GO TO key Go to waypoint dialog box 4 Press the GO NOW key The 961 goes to the STEER screen and guides you directly to this selected waypoint Adding a selected waypoint to the end of the trip 1 Press the WAYPTS ROUTES key to access the WAY POINTS screen 2 Press the CURSOR PAD up or down to highlight the desired waypoint 3 Press the GO TO key ...

Страница 229: ...he desired track Perhaps you steered to avoid an obstacle or simply drifted slightly off course Whenever you re off course for any reason there are two tracks you can take to the waypoint after passing the obstacle you can steer your vessel back to the original desired track using the XTE display see track 1 below and continue to the waypoint if you don t need to return to the original desired tra...

Страница 230: ...the traditional STEER screen press the RESTART HERE key then press the CONFIRM key Your present position becomes your new from point XTE becomes zero and the 961 returns to the STEER screen Restarting from the chart screen At the CHART screen first press the GO TO key At the GO TO COORDINATES dialog box press the RESTART HERE key Your present position becomes your new from point XTE becomes zero a...

Страница 231: ...ging the trip 11 5 Saving the trip as a route 11 11 Erasing the trip 11 12 Restarting the track at the trip screen 11 14 Stopping navigation 11 15 This chapter describes the function of the 961 s trip a series of waypoints that are saved in real time as you travel provid ing a quick and easy way to check on your progress and make any changes ...

Страница 232: ... any time as a route in the 961 s database Overall the trip function provides a quick and easy way to check on your progress as well as make changes while you travel Of course you can navigate with the 961 while ignoring the 961 s trip function You may want to ignore trip functions while learning to use the 961 In any case you should regularly erase the old part of the trip The trip can t fill up ...

Страница 233: ...e trip Press the TRIP key at any time to display the TRIP screen which sequentially lists all your past active and future way points Trip screen The TRIP screen shows a list of these waypoints with name position coordinates day date time of arrival and distance and bearing between trip points for past waypoints and day date and estimated time of arrival for active and future way points By pressing...

Страница 234: ... waypoints are displayed at the top of the list the active waypoint if any is displayed in the middle and is always highlighted in yellow and any future waypoints are listed below the active one Waypoint names The TRIP screen displays all waypoints involved with your current trip which can be any of the following waypoints selected from the 961 s database user defined names unnamed waypoints enter...

Страница 235: ...en points Remember that ETA is only an estimate because your SOG may change either intentionally or due to varying currents Displaying the trip on the chart screen On the CHART screen past legs of the trip are displayed in yel low future trip legs are displayed in light blue and the current track to the active waypoint is displayed in green You have the option of turning off the display of past tr...

Страница 236: ...functions listed above at the CHART screen since the 961 automatically displays the trip on that same screen However those functions aren t described here for details about modifying your trip on the CHART screen see Using the cursor key starting on page 4 18 Adding and going directly to a new waypoint To add a new waypoint and go directly to it this deletes any active and future points 1 At the T...

Страница 237: ...nt Inserting a new waypoint to the trip This option lets you insert a new waypoint into the trip You must select the active or a future trip point since you can t ever add a trip point to the past part of the trip 1 At the TRIP screen press the CURSOR PAD up or down to select the waypoint right after the one where you want to make the insertion If you select the active waypoint the newly inserted ...

Страница 238: ...icular waypoint since the waypoint will be added to the end the resulting dialog box will be titled as to which point you ve chosen 2 Use the KEYPAD to enter your desired new destination as lat lon TDs or distance and bearing 3 Press the ADD TO END OF TRIP key or press the CAN CEL key to cancel The 961 returns to the TRIP screen and shows COORD as the new waypoint added to the end of the trip If t...

Страница 239: ... the CANCEL key to cancel The 961 goes to the STEER screen Your desired track is from your present location to your chosen one Intermedi ate waypoints if any are removed from the trip Joining a future leg To join a future trip leg 1 At the TRIP screen select the future waypoint at the end of the leg you want to join 2 Press the GO TO SELECTION key ...

Страница 240: ...reen and you re travelling along the leg to your active waypoint The 961 has removed intermediate points from the trip but your desired track is the previously defined leg Going directly to a past waypoint and continuing To go to a past waypoint then follow all points from that point back to the beginning of the trip 1 At the TRIP screen select the desired past waypoint 2 Press the GO TO SELECTION...

Страница 241: ...sent position to the selected waypoint adding all the earlier trip points in reverse order to the future trip Saving the trip as a route If at any time you decide to save the sequence of waypoints in the trip you can save and store your entire current trip as a route Before saving the trip however you may want to erase unwanted waypoints from it see Erasing the trip starting on page 11 12 1 At the...

Страница 242: ...ress CANCEL to cancel The 961 returns to the TRIP screen Current navigation if any isn t affected Erasing the trip At the TRIP screen you have the following options for erasing your trip erasing the entire trip erasing all the points up to or after a selected one erasing a single point It is recommended that you erase an old trip before you start a new one To access the ERASURES dialog box at the ...

Страница 243: ...e 961 erases the entire trip returns to the TRIP screen and places your last known position into the trip Any cur rent waypoint navigation will cease Erasing selected waypoints To permanently erase all the trip points before the selected one but not the selected one 1 At the TRIP screen select the point at which all other points before it will be erased then press the ERASURES key 2 Press the ERAS...

Страница 244: ...E AFTER key The 961 erases all the selected trip points and returns to the TRIP screen Erasing a single waypoint To erase a single trip point 1 At the TRIP screen select the desired point 2 Press the ERASURES key 3 Press the ERASE CURRENT key The 961 erases the trip point and returns to the TRIP screen Restarting the track at the trip screen To restart the track from your present position to the a...

Страница 245: ...onscreen navigation messages appearing and without unwanted way point sequencing In addition autopilot commands cease when stopped Why stop navigation If you purposely want to go off course for example simply stop navigation when you re done you can resume navigation right where you left off To stop waypoint navigation calculations at the TRIP screen press the STOP NAV key this key isn t displayed...

Страница 246: ...Chapter 11 Using the Trip Function Page 11 16 961 Operations and Reference Manual Rev D Note that if there s an active waypoint in the trip when you turn on the 961 navigation will be stopped ...

Страница 247: ...Currents Understanding alarms 12 2 Understanding the TideTrack function 12 8 Understanding the currents function 12 12 This chapter describes three important navigation functions setting and clearing the 961 s alarms and using Northstar s unique TideTrack and currents features ...

Страница 248: ...g at the top of the CHART screen this lets you still see the INFO BARs at the bottom of the screen on the ALARMS screen on this screen you can manually clear or stop new alarms although some are auto clear ing and you can view old alarms which are alarms that already have cleared Alarms screen On this screen if there aren t any new alarms the CLEAR ALARM key won t be displayed The different types ...

Страница 249: ...e alarm audio starting on page 12 7 Most of the 961 s alarms automatically clear when the alarm condition stops although some alarms require manual clear ing on the ALARMS screen as described below Clearing an alarm Clearing an alarm means you ve removed the onscreen alarm message and the alarm audio if on stops beeping There are two types of alarms alarms that are auto clearing and alarms that re...

Страница 250: ...the alarm automatically clears or you can manually clear the alarm by pressing the CLEAR ALARM key at the ALARMS screen The factory setting for the arrival radius field is 0 02 nm or approximately 120 feet You can com pletely disable this alarm see Changing alarm settings starting on page 12 6 Yes when leaving the arrival radius or by passing the active way point or by changing to a new one PASSIN...

Страница 251: ...ween the 961 and its inter nal GPS receiver Yes but only after con dition clears TOO HOT LIGHT LOW ERED This alarm means that the 961 has reduced the display brightness because of excessive heat Yes NO GPS FIX or GPS ACQUIRING only after power up during initial GPS acquisition This alarm means that the 961 isn t receiv ing GPS position information What causes lack of position information Noise in ...

Страница 252: ...t is you ve travelled a specific maximum distance from the established track line You set this dis tance at the alarms screen You can com pletely disable this alarm see Changing alarm settings starting on page 12 6 Yes but only when you re well within the limit ANCHOR DRAGGING This alarm means that you ve exceeded the distance set in the ANCHOR DRAG alarm that is you ve travelled outside the radiu...

Страница 253: ...s the ACCEPT key or press CAN CEL to leave the alarm on To change the distance setting for the cross track arrival radius or anchor drag alarms highlight the desired alarm setting then use the KEYPAD to enter the distance at which you want to be alerted If necessary press the LEFT ARROW and RIGHT ARROW to move the cursor into the desired decimal place When done press the ACCEPT key or press CANCEL...

Страница 254: ...alarm audio itself to the next level While you press and hold the SOFTER key a tone sounds to provide a sample of the new volume setting To turn off the alarm audio press the SOFTER key until you reach the OFF setting Understanding the TideTrack function What is TideTrack The 961 s TideTrack function calculates and selects tide infor mation for any of over 3 000 NOS NOAA tide stations Tide Track c...

Страница 255: ...within the cover age area If the STATION COVERAGE bar says there aren t any stations in the coverage area press the OUT key to zoom out to a wider coverage area the GRAPH ON key will appear If the STATION COVERAGE bar says there are too many stations press the IN key to zoom in to a smaller coverage area the GRAPH ON key will appear In either case you can also press the CURSOR PAD to change the co...

Страница 256: ...ation Chart screen with tide graph and tide station bar Understanding the tides overlay The tide graph and TIDE STATION bar displays the following information name of the tide station present tide level for today s date tide level at flashing red cursor can be changed today s day and date can be changed present time can be changed in hourly and 5 minute increments time of sunrise and sunset graphi...

Страница 257: ...ighlight the minutes e g 46 then press the LEFT or RIGHT ARROW keys to view past or future minutes in 5 minute increments only respectively For a selected a tide station the TIDE STATION bar at the bot tom displays the distance and bearing to the selected tide sta tion as well as its lat lon coordinates and TDs For a selected a tide station the scale range reading can be used to determine a precis...

Страница 258: ...HART screen press the OVERLAY key then press the HIDE TIDES key To return to vessel functions press the VESSEL key Changing tide height units You can change the height display units for the tides at the 961 s DISPLAY SETUP screen You can display tide heights using the same units as depths on the chart or set units to be in feet or meters For instructions see Tide height units start ing on page 13 ...

Страница 259: ...zoom out to a wider coverage area the GRAPH ON key will appear If the STATION COVERAGE bar says there are too many stations press the IN key to zoom in to a smaller coverage area the GRAPH ON key will appear In either case you can also press the CURSOR PAD to change the coverage area Chart screen with current stations and station coverage bar Selecting current stations on the chart screen Choosing...

Страница 260: ...ion at the flashing red cursor can be changed in hourly and 5 minute increments time of sunrise and sunset current speed and direction for any 24 hour period minimum speed direction before flood average maximum flood minimum speed direction before ebb average maximum ebb Initially the 961 displays this information for today s date and the present time to view the current graph for past or future d...

Страница 261: ... choose any current station on the CHART screen by moving the cursor to that station 1 At the CHART screen press the OVERLAY key then press the SHOW CURRENTS key 2 As you re displaying the CHART screen showing the area current stations and STATION COVERAGE bar press the CURSOR PAD to move the cursor to select the desired current station you may have to press the OUT key to see the location of othe...

Страница 262: ...Chapter 12 Alarms TideTrack and Currents Page 12 16 961 Operations and Reference Manual Rev D ...

Страница 263: ...charts 13 30 Using demo mode 13 62 Viewing the time information screen 13 66 This chapter describes how to tailor the 961 s CHART screen to suit your particular needs The setup functions include specifying how to compute certain navigation data and display this data on the CHART screen manage your BSB or HCRF chart files including loading updating and deleting them and use demo mode to simulate na...

Страница 264: ... the SETUP MENU screen then press the DISPLAY SETUP key Display setup screen At the DISPLAY SETUP screen you can view or edit any of the following options time zone time format cross track error XTE scale distance and speed units height units for a tide graph s tides maximum number of saved waypoints You can also press the SECURITY key to enter a user defined password for your system Each of these...

Страница 265: ... the CURSOR PAD up or down or press the ARROW keys to select the desired zone 3 When done press the ACCEPT key or CANCEL to leave the option unchanged 4 Press RETURN to go back to the SETUP MENU screen Display of time To change the display of time to either a 12 or 24 hour clock 1 Press the CURSOR PAD to highlight the TIME FORMAT field then press the EDIT key 2 Press the CURSOR PAD left or right o...

Страница 266: ... speed units previously selected see the DIST SPEED field on this same screen 3 When done press the ACCEPT key or CANCEL to leave the option unchanged 4 Press RETURN to go back to the SETUP MENU screen Distance and speed units You can set the display of distance and speed units to any of the following measurements nautical miles and knots NM KTS statute miles and miles per hour MI MPH kilometers a...

Страница 267: ...then press the EDIT key 2 Press the CURSOR PAD left or right or press the ARROW keys to select either AUTO FEET or METERS 3 When done press the ACCEPT key or CANCEL to leave the units unchanged 4 Press RETURN to go back to the SETUP MENU screen Maximum number of saved waypoints When you use the SAVE key to save a waypoint the 961 auto matically assigns a sequential waypoint number SAVED00 SAVED01 ...

Страница 268: ... will be permanently stored not overwritten NOTE When the 961 overwrites a SAVEDXX waypoint that s still in the trip or is used in a route the original coordinates of that point are retained in the trip or route and the point becomes unnamed This feature ensures that the trip or route isn t changed System security To implement the 961 s security system you must first return the registration card i...

Страница 269: ...age 1 Press the STAR key until you reach the DISPLAY SETUP screen then press the SECURITY key The ENTER PASSWORD dialog box appears Password dialog box 2 Enter the Northstar defined password or if you already have a user defined password enter it instead then press the CONFIRM key The OWNER S MESSAGE DISPLAY screen appears ...

Страница 270: ... to leave the owner s message blank or the same as before Turning on the 961 s security system 1 At the OWNER S MESSAGE DISPLAY screen press the CURSOR PAD to highlight the SECURITY field 2 Press the EDIT key 3 Press the CURSOR PAD left to highlight the ON field then press the ACCEPT key or press CANCEL to leave the option unchanged By turning on the security system you ll always have to use the K...

Страница 271: ...the ACCEPT key Once accepted if the security system is on you ll always have to use the KEY PAD to enter your user defined password or you can still enter the Northstar password at the OWNER S MESSAGE screen Changing navigation setup The 961 offers several different options for navigation setup To access these options press the STAR key until you reach the SETUP MENU screen then press the NAVIGATI...

Страница 272: ...s models for lat lon coordinates on their charts each model is called a datum The datum the 961 uses on its CHART screen always matches that of the chart in use The non chart screens and the serial data input and output use the same datum as chart view A unless you change the GEO DATUM setting from auto to manual the auto setting is WGS84 Once in manual you then select the datum you want the 961 t...

Страница 273: ...etically in Table 10 Datum list below Note that the deltas are the three dimen sional offset at the center of the earth Table 10 Datum list Datum name Ellipsoid delta x meters delta y meters delta z meters ADINDAN MEAN VALUE Africa CL1880 166 15 204 Adindan Ethiopia CL1880 165 11 206 Adindan Mali CL1880 123 20 220 Adindan Senegal CL1880 128 18 224 Adindan Sudan CL1880 161 14 205 Afgooye Somalia KR...

Страница 274: ...ronomic Station 1952 INTL 124 234 25 Australian Geodetic 1966 AUSTR 133 48 148 Australian Geodetic 1984 AUSTR 134 48 149 Bellevue IGN INTL 127 769 472 Bermuda 1957 CL1866 73 213 296 Bogota Observatory Colombia INTL 307 304 318 Campo Inchauspe INTL 148 136 90 Canton Astro 1966 INTL 298 304 375 Cape South Africa CL1880 136 108 292 Cape Canaveral mean value CL1866 2 150 181 Carthage Tunisia CL1880 26...

Страница 275: ...l and Spain INTL 88 109 122 European 1950 Sardinia INTL 97 103 120 European 1950 Sicily INTL 97 88 135 European 1950 Western Europe INTL 87 98 121 European 1979 mean value INTL 86 98 119 Gandajika Base Indian Ocean INTL 133 321 50 Geodetic Datum 1949 INTL 84 22 209 Guam 1963 CL1866 100 248 259 Gux 1 Astro Guadalcanal Isl INTL 252 209 751 Hjorsey 1955 Iceland INTL 73 46 86 Hong Kong 1963 INTL 156 2...

Страница 276: ...e Islands INTL 289 124 60 Massawa Ethiopia B1841 639 405 60 Merchich Morocco CL1880 31 146 47 Midway Astro 1961 INTL 912 58 1227 Minna Nigeria CL1880 92 93 122 Nahrwan Masirah Island Oman CL1880 247 148 369 Nahrwan Saudi Arabia CL1880 231 196 482 Nahrwan United Arab Emirates CL1880 249 156 381 Naparima BWI Trinidad and Tobago INTL 2 374 172 NORTH AMERICAN 1927 CONUS MEAN VALUE CL1866 8 160 176 Nor...

Страница 277: ... 190 North American 1927 N W Terrs Sask CL1866 4 159 188 North American 1927 San Salvador Island CL1866 1 140 165 North American 1927 Western U S CL1866 8 159 175 North American 1927 Yukon CL1866 7 139 181 North American 1983 GRS80 0 0 0 Observatorio 1966 Atlantic Isl INTL 425 169 81 Old Egyptian 1930 HELM 130 110 13 OLD HAWAIIAN MEAN VALUE CL1866 61 285 181 Old Hawaiian Hawaii CL1866 89 279 183 O...

Страница 278: ...6 Ecuador INTL 278 171 367 Provisional S American 1956 Guyana INTL 298 159 369 Provisional S American 1956 N Chile INTL 270 183 390 Provisional S American 1956 Peru INTL 279 175 379 Provisional S American 1956 S Chile INTL 305 243 442 Provisional S American 1956 Venezuela INTL 295 173 371 Provisional S Chilean 1963 INTL 16 196 93 Puerto Rico CL1866 11 72 101 Qatar National INTL 128 283 22 Qornoq G...

Страница 279: ...9 61 2 33 South American 1969 Peru SA1969 58 0 44 South American 1969 Trinidad and Tobago SA1969 45 12 33 South American 1969 Venezuela SA1969 45 8 33 South Asia Singapore FS1960M 7 10 26 Southeast Base INTL 499 249 314 Southwest Base INTL 104 167 38 Timbalai 1948 Malaysia EVRST 689 691 46 TOKYO MEAN VALUE B1841 128 481 664 Tokyo Japan B1841 123 483 662 Tokyo Korea B1841 128 481 665 Tokyo Okinawa ...

Страница 280: ...d Datum name Ellipsoid delta x meters delta y meters delta z meters Table 11 Reference ellipsoid constants Reference ellipsoids a meters f flattening Airy AIRY Modified Airy AIRYM 6377563 396 6377340 189 1 299 3249646 1 299 3249646 Australian National AUSTR 6378160 1 298 25 Bessel 1841 B1841 6377397 155 1 299 1528128 Clarke 1866 CL1866 6378206 4 1 294 9786982 Clarke 1880 CL1880 6378249 145 1 293 4...

Страница 281: ...ion then press the EDIT key 2 Press the CURSOR PAD up or down or press the LEFT ARROW or RIGHT ARROW keys to scroll the list of avail able GRIs 3 When done press the SELECT key or CANCEL to leave the option unchanged 4 Press RETURN to go back to the SETUP MENU screen Advancing waypoints You can set the 961 so that as you pass each waypoint you either manually switch to the next waypoint or automat...

Страница 282: ...s you time to maneuver precisely to a waypoint before calculations to the next waypoint begin Each time you arrive at an active waypoint however you must manually change to the next waypoint Advancing to the next waypoint however is as simple as pressing the TRIP key selecting the future waypoint pressing the GO TO SELEC TION key and pressing the GO DIRECT key When set to automatic switching howev...

Страница 283: ...ically calculate the variation for your position which is usually entirely adequate however the 961 lets you choose select automatic or manual magnetic variation or else true north True north setting If you select true north no corrections will be applied to your course and bearings True north usually is required if you re using a gyrocompass Automatic setting If you select automatic variation the...

Страница 284: ... key or CANCEL to leave the option unchanged 5 Press RETURN to go back to the SETUP MENU screen Distance bearing and steering calculations The shortest distance between any two points on the surface of a sphere appearing as a curved line on a Mercator grid is known as a great circle By comparison a constant direction to your destination is known as a rhumb line which appears as a straight line on ...

Страница 285: ... the ACCEPT key or CANCEL to leave the option unchanged 4 Press RETURN to go back to the SETUP MENU screen Changing the chart setup The 961 offers several different options for the chart screen s setup To access these options press the STAR key until you reach the SETUP MENU screen then press the CHART SCREEN SETUP key to display the CHART SETUP screen Chart setup screen At the CHART SETUP screen ...

Страница 286: ...r function keypress To resume editing at the CHART SETUP screen you must return to that screen and re enter the data that you lost when you pressed the function key To purposely cancel an edit in progress you d usually press the CANCEL key Enabling disabling individual waypoint symbols You can enable or disable the display of waypoint symbols on the CHART screen After you enable certain waypoint s...

Страница 287: ...e ON OFF key To turn all waypoint symbols on or off press the ALL NONE key To use the 961 s default waypoint symbols press the DEFAULTS ON key 4 When done press the ACCEPT key or CANCEL to leave the option unchanged 5 Press RETURN twice to go back to the SETUP MENU screen Displaying waypoint symbols and names After enabling either individual or all waypoint symbols you must ensure that the WAYPT D...

Страница 288: ...SETUP screen press the WAYPTS key 2 At the second CHART SETUP screen press the CURSOR PAD to highlight the WAYPT DISPLAY field then press the EDIT key 3 Press the CURSOR PAD left or right or press the LEFT ARROW or RIGHT ARROW keys to select either NAME SYMBOL or SYMBOL no names 4 When done press the ACCEPT key or CANCEL to leave the option unchanged 5 Press RETURN twice to go back to the SETUP ME...

Страница 289: ...RSOR PAD to highlight the PREDICTOR LINE option then press the EDIT key 2 Press the CURSOR PAD left or right or press the LEFT ARROW or RIGHT ARROW keys to select 1 MIN 2 3 5 30 or OFF 3 When done press the ACCEPT key or CANCEL to leave the option unchanged Display of position coordinates loran You can choose whether to display loran coordinates in the CHART screen INFO BARs including the CURSOR I...

Страница 290: ...F 3 Press the ACCEPT key or CANCEL to leave the option unchanged 4 Press RETURN to go back to the SETUP MENU screen Distance scale You can turn on or turn off the display of the distance scale bar on the CHART screen To change the DISTANCE SCALE setting 1 At the CHART SETUP screen press the CURSOR PAD to highlight the DISTANCE SCALE option then press the EDIT key 2 Press the CURSOR PAD left or rig...

Страница 291: ...unchanged 4 Press RETURN to go back to the SETUP MENU screen Chart update regions You can turn on or off the display of regions on the CHART screen showing where the chart has been updated To change the SHOW UPDATE REGION setting 1 At the CHART SETUP screen press the CURSOR PAD to highlight the SHOW UPDATE REGION option then press the EDIT key 2 Press the CURSOR PAD left or right or press the LEFT...

Страница 292: ...ptech or NDI HCRF charts such as ARCS charts CDs available from ARCS agents distributors The 961 s SETUP MENU screen accesses the option for manag ing your entire inventory of charts To access this chart inven tory function and the corresponding CHARTS INVENTORY screen press the STAR key until you reach the SETUP MENU screen then press the CHART INVENTORY key Chart inventory screen From the CHART ...

Страница 293: ...al chart vendor or else call ARCS Customer Services at 44 0 1823 723366 or visit the UKHO s website at www ukho gov uk click on the charts link for a list of worldwide Admiralty Charts and Publications agents distributors Note that every time you purchase HCRF charts you ll need to give this agent distributor your user per mit to view your user permit see Viewing your HCRF user permit and license ...

Страница 294: ... At the SELECT CHART SOURCE screen press the CUR SOR PAD to highlight the CD ROM drive then press the LOAD CHARTS key The LOADING CHARTS dialog box appears If a chart you re loading is already in the database you ll have three options to choose from if none of the charts is already in the database these options won t be shown To ensure that the chart database contains the chart s with the most rec...

Страница 295: ...e OPTION key again 7 Press the LOAD CHARTS key and the LOADING CHARTS dialog box appears To load charts marked LOAD into the database press the LOAD MARKED CHARTS key or to cancel press the CANCEL key If the CD and the chart database have duplicate file names you ll have three options to choose from To ensure that the chart database contains the chart s with the most recent file date press the NEW...

Страница 296: ...e Admiralty Raster Chart Service This section introduces ARCS charts as well as key points to remember when loading and updating them onto the 961 Technical support For technical support with ARCS charts you should first call your ARCS agent distributor You can also email the UKHO at helpdesk busdev hydro gov uk or call the UKHO s ARCS Customer Service offices at 44 0 1823 723366 For troubleshooti...

Страница 297: ... your charts regularly your chart information should never be more than a week or two old at any given time Automatic weekly Update CDs are cumulative so all corrections from earlier weeks are included on the Update CD just in case you didn t install the Update CD from a previous week With the 12 month Navigator license first the 961 warns you one month before your license will expire next the 961...

Страница 298: ...at lists all your charts and that Chart 01 and name was loaded from Chart CD RC1 24 June 1999 and Update CD Wk50 99 16 December 1999 If and when this information changes just make a note of it in your log Another option is to either enclose a list inside the cases or a sticker on the outside of the cases of the Chart CDs and Update CDs where the Chart CDs would list for example Chart 01 and name a...

Страница 299: ...Chart CD contains approximately 300 charts For regional coverage of ARCS visit the UKHO s website at www ukho gov uk Navigator users can reference their ARCS Navigator User Guide On the 961 s various charts lists for example the CHARTS IN DATABASE screen one chart may appear as if it s several charts even though you know you ve installed only one chart This occurs because a single chart may includ...

Страница 300: ...or you must delete all the Skipper charts and per mits before you load Navigator charts and permits con versely if you re using the Navigator series and want to switch to Skipper you must delete all the Navigator charts and permits before you load Skipper charts and permits Both of these procedures are performed the same way see Deleting all HCRF specific information starting on page 13 47 Your AR...

Страница 301: ...drive and insert the Permit Disk into the appropriate drive 4 Press the LOAD CHARTS key 5 At the SELECT CHART SOURCE screen press the LIST CHARTS key The 961 scans the CD for the charts then displays the CHARTS ON DISK screen Each chart for which you have a permit is pre marked as LOAD in the OPTION column If you want to load a chart that doesn t have a corre sponding chart permit on the 961 first...

Страница 302: ...ce you ll need it again and insert the Chart CD 8 Press the OK key The 961 loads the charts then at the INSERT HCRF CD dialog box the 961 prompts you to insert the same Update CD back into the drive 9 Remove the Chart CD from the drive and insert the same Update CD 10 Press the OK key The 961 updates the charts and displays the LOADING CHARTS dialog box then the HCRF SUMMARY dialog box Each chart ...

Страница 303: ...er 13 Customizing Setup Functions 961 Operations and Reference Manual Rev D Page 13 41 HCRF summary dialog box 11 Press the OK key to display the LOADING CHARTS SUM MARY dialog box then press the CONFIRM key ...

Страница 304: ...RT INVENTORY key 2 At the CHART INVENTORY screen press the LOAD UPDATE CHARTS key 3 Insert the Update CD into the CD ROM drive 4 Press the UPDATE CHARTS key The 961 finds all HCRF charts to be updated and updates them 5 At the UPDATING CHARTS dialog box press the CON FIRM key The 961 updates the charts and displays the HCRF SUM MARY dialog box Each chart updated is represented by a different horiz...

Страница 305: ...er 13 Customizing Setup Functions 961 Operations and Reference Manual Rev D Page 13 43 HCRF summary dialog box 6 Press the OK key to display the UPDATING CHARTS SUMMARY dialog box then press the CONFIRM key ...

Страница 306: ...ETUP MENU screen then press the CHART INVENTORY key 2 At the CHART INVENTORY screen press the LOAD UPDATE CHARTS key 3 Insert the Update CD into the CD ROM drive 4 Press the LOAD CHARTS key 5 At the SELECT CHART SOURCE screen press the LIST CHARTS key The 961 scans the CD for the charts and displays the CHARTS ON DISK screen Each chart for which you have a permit is marked LOAD in the OPTION colum...

Страница 307: ... desired chart then press the OPTION key to mark it load the 961 won t actually mark the chart load until you first enter the chart permit Instead of proceeding to mark the chart load the 961 displays the ENTER NAVIGATOR PERMIT dialog box or the ENTER SKIPPER PERMIT dialog box depending on the service and you re prompted to manually enter a chart permit ...

Страница 308: ...igns are required you can scroll across them with the ARROW keys or use the SIGN key to enter them 8 Press the OK key if you made a mistake or entered an incorrect permit the 961 will beep and prompt you to try again The 961 now displays the CHARTS ON DISK screen with this chart marked load 9 To load charts see Loading HCRF charts starting on page 13 39 beginning with step 6 pressing the LOAD CHAR...

Страница 309: ...ess the HCRF SPE CIFIC key 3 At the HCRF CHARTS screen press the CHART PERMITS key 4 At the HCRF PERMITS screen press the CURSOR PAD to highlight the permit s that you want to delete then press the USAGE key to mark the permit delete in the USAGE field 5 Press the DELETE PERMITS key 6 At the DELETE PERMITS dialog box press the CONFIRM key After deleting a chart and permit the DELETE PERMITS dialog...

Страница 310: ...efore proceeding remember that this step deletes all HCRF information including all charts and permits from the 961 5 At the ARE YOU SURE dialog box press the YES key once you press the YES key you ll only have a very brief opportunity to stop the deletion process by pressing the STOP key if you don t the 961 will continue to delete all charts and permits After deleting all charts and permits the ...

Страница 311: ...wrong What can be done HCRF01 Either The contents of the license file are either altered or corrupt The probable cause is a bad floppy disk zip disk during license delivery Obtain a new license from your ARCS agent distribu tor HCRF02 Either Either the chart permit is corrupt or it s not your permit The probable cause is a bad floppy disk zip disk during license delivery Obtain a new permit from y...

Страница 312: ...tor to renew your license HCRF09 Navigator Your Navigator license has expired You have until the end of the month to renew your license Until then you can view but not update your charts After that you won t be able to view your charts Contact your ARCS agent dis tributor to renew your license HCRF10 Navigator Your Navigator license has expired You can t view or update charts Contact your ARCS age...

Страница 313: ...date CD to load a newer version of the chart HCRF15 Skipper You re trying to load a chart that s newer than your permit allows Either use older an Chart CD Update CD to view this chart or contact your ARCS agent distrib utor for a new chart permit HCRF16 Skipper You re trying to use an Update CD that s newer than your chart permit allows Either use an older Update CD or contact your ARCS agent dis...

Страница 314: ...display a list of charts Your user permit is the series of 16 letters and numbers in the box at the bottom of the screen HCRF charts screen From the HCRF CHARTS screen you can access other HCRF specific functions which are explained in the following sections Viewing a list of installed HCRF charts To view a list of all HCRF charts installed in the database 1 Press the STAR key until you display th...

Страница 315: ...e Update CD used to update the chart NOTE It is highly recommended that you record the source of each HCRF chart If you haven t already recorded which Chart CDs and Update CDs comprise a chart you can get this information right from the HCRF CHARTS IN DATABASE screen as shown in the sample above For further details about keeping a log of your source CDs please see Understanding the ARCS Skipper se...

Страница 316: ...ew a list of charts for which you have permits 1 Press the STAR key until you display the SETUP MENU screen then press the CHART INVENTORY key 2 At the CHART INVENTORY screen press the HCRF SPE CIFIC key 3 At the HCRF CHARTS screen press the CHART PERMITS key to display the HCRF PERMITS screen HCRF permits screen Skipper version ...

Страница 317: ...e N TO M column Notice to Mariners for Navigator permits expiration date in the EXPIRES col umn On this screen you can sort or search the permit list display detailed chart information by pressing the INFO key or mark a permit for deletion which will also delete the chart For details about deleting permits see Common chart functions starting on page 13 57 Entering your NOC and user permit To obtai...

Страница 318: ...n press the CHART INVENTORY key 2 At the CHART INVENTORY screen press the HCRF SPE CIFIC key to display the HCRF CHARTS screen 3 At the HCRF CHARTS screen press the USER PERMIT key The HCRF USER PERMIT screen appears HCRF user permit screen 4 At the HCRF USER PERMIT screen press the EDIT key if a valid NOC and user permit are already present this key won t appear 5 At the ENTER NOC AND USER PERMIT...

Страница 319: ...ing a chart list displaying detailed chart information changing a chart s usage displaying a list of charts on a CD To access these functions 1 Press the STAR key until you display the SETUP MENU screen then press the CHART INVENTORY key to display the CHART INVENTORY screen 2 Press the LOAD UPDATE CHARTS key to display the CHARTS IN DATABASE screen Charts in database screen The CHARTS IN DATABASE...

Страница 320: ...RF charts the 961 retains the permits for those charts 1 Press the STAR key to display the SETUP MENU screen then press the CHART INVENTORY key 2 Press the DELETE CHARTS key 3 At the CHARTS IN DATABASE screen press the CURSOR PAD to highlight the chart you want to delete then press the USAGE key until you see DELETE in the USAGE field 4 Press the DELETE CHARTS key The DELETE CHARTS dialog box prov...

Страница 321: ...fter you ve pressed the CURSOR PAD up or down to high light a chart press the INFO key to cycle through a series of INFO BARs of information showing the following usually the first INFO keypress shows chart source information but if you display a CD ROM s chart files at first you ll see information about the contents of that particular CD and the space left for additional charts on the 961 chart n...

Страница 322: ...witches charts during navigation For example mark a chart PREFER because the scale is better provides better information and so on mark a chart AVOID if you don t want the 961 to select and display this chart as it switches charts during naviga tion however this chart will be displayed when no others are available with similar coverage areas NOTE If you specifically want to mark HCRF charts as pre...

Страница 323: ...the SETUP MENU screen then press the CHART INVENTORY key 3 Press the LOAD UPDATE CHARTS key 4 At the CHARTS IN DATABASE screen press the LOAD CHARTS key The SELECT CHART SOURCE screen appears Select chart source screen 5 Press the LIST CHARTS key The 961 scans the selected CD for charts and the CHARTS ON DISK screen appears ...

Страница 324: ...the smaller the list The slider also indicates your position in the list i e at the top in the middle at the bottom or anywhere else in between NOTE To list charts on a different CD simply remove the existing CD insert the different CD into the drive and press the RE SCAN DISK key The 961 will now list these charts on the CHARTS ON DISK screen Using demo mode You can use demo mode to simulate navi...

Страница 325: ...utput for 10 minutes while in demo mode With this option any connected systems will believe that the 961 is operating with real GPS information and will output data for 10 minutes Serial output including commands to the autopilot is inhib ited or deemed invalid Starting demo mode Before you start demo mode you must first set your starting position 1 Press the STAR key to access the SETUP MENU scre...

Страница 326: ... of the stored waypoints as a starting position press the USE WAYPT key then press the CURSOR PAD to highlight a starting waypoint if necessary you can search the waypoint list for a starting waypoint in the flashing red green box After you ve highlighted a way point its lat lon coordinates appear in the LATITUDE and LONGITUDE fields at the bottom of the screen To edit these coordinates press the ...

Страница 327: ...ady in demo mode press the RESUME KEY Now that you re in demo mode when you return to the SETUP DEMO MODE screen if you change your position course and speed settings you can always press the RESTORE key to restore your last saved position course and speed settings Note that the RESTORE key appears on the SETUP DEMO MODE screen only after you ve pressed the SAVE key Using the resume key The RESUME...

Страница 328: ...the selected time zone local sunrise time at your present vessel position local sunset time at your present vessel position To access the 961 s TIME INFORMATION screen press the STAR key until you reach the SETUP MENU screen then press the TIME INFORMATION key Time information screen You can t change the time and date shown because the 961 obtains time and date directly from the GPS satellites ...

Страница 329: ...s 14 2 Maintenance functions 14 16 This chapter explains service information and receiver setup as well as maintenance functions including how to install soft ware updates backup and restore the 961 s waypoints routes and user preference database and troubleshoot the system before returning it for service ...

Страница 330: ...out the 961 s control head processor GPS receiver and DGPS receiver if installed To display these functions press the STAR key until you reach the SERVICE MENU screen then press the PRODUCT INFOR MATION key to display the following screen Product information screen Viewing head 1 serial number and software revision The complete 961 system comprises two or three serial num bers one for each control...

Страница 331: ...led each time you power up the unit The BCN RCVR ST REV field displays the software version used by your 961 s DGPS receiver if installed as well as the self test message PASS or FAIL If all test parameters are met the field says PASS If the differential receiver fails any of the test criteria the field says FAIL If the field says FAIL the 961 won t be receiving DGPS signals for details about trou...

Страница 332: ...figuring the receiver The 961 s RECEIVER INFORMATION screen provides you with access to several of the 961 s GPS and DGPS if installed receiver functions To display these functions press the STAR key until you reach the SERVICE MENU screen then press the RECEIVER SETUP key Receiver information screen ...

Страница 333: ...e steadi ness of these readings although you ll see a slightly longer dis play reaction time when the speed changes With GPS speed averaging you can select the time over which the 961 averages your speed with available values between one and ten seconds A longer averaging time is useful at lower speeds when you require the highest accuracy With this high degree of accuracy you ll see a steady disp...

Страница 334: ...sources of GPS position information and avoids potential errors You can adjust this option to 0 5 8 10 or 15 however Northstar recommends that you leave this option at the fac tory setting of 10 To change the satellite elevation 1 At the RECEIVER INFORMATION screen press the CUR SOR PAD to highlight the MIN SAT ELEV field then press the EDIT key 2 Press the CURSOR PAD left or right to select eithe...

Страница 335: ...ignals for signal quality and selects only the best station The receiver is prepared to switch to another frequency automatically as you travel as condi tions require The unit maintains automatic operation by using its two inde pendent receiver channels Channel 1 tracks the best available differential signal the one with the lowest data error rate and sends the demodulated DGPS corrections to the ...

Страница 336: ...DGPS corrections only from the selected sta tion Although the need for manual operation is rare it is eas ily accessed at the RECEIVER INFORMATION screen Here you can set the differential frequency to any value between 283 5kHz and 325kHz You can set the baud rate to any of the four standard rates 25 bps 50 bps 100 bps or 200 bps To choose manual mode 1 At the RECEIVER INFORMATION screen press the...

Страница 337: ... as the frequency baud rate and status of DGPS transmitters 961XD only To display this infor mation press the STAR key until you reach the SERVICE MENU screen then press the GPS STATUS key GPS satellite status screen To go back to an overview of GPS and DGPS see Introducing GPS and DGPS starting on page 2 13 For details about the GPS satellite status screen see Understanding Position Coor dinates ...

Страница 338: ...you reach the SERVICE MENU screen then press the DATABASES AND LOG key Saving and restoring a 961 database You can easily save or backup your entire database of user defined waypoints and routes as well as your user prefer ences to either floppy or Zip disks User preferences are the display navigation chart receiver and port setup features of your 961 Because the 961 is sold with a standard 1 44 M...

Страница 339: ...us of a floppy disk use the tip of a pen to switch the position of the small square on the outer corner of the disk NOTE The save and restore function isn t designed to be used for your tracks charts alarm settings or the trip This data can t be saved to either type of disk as described above Saving a database To save the waypoint and route or user preference databases to a disk 1 Press the STAR k...

Страница 340: ...waypoints To save all of the above press the ALL key The SAVE DATA dialog box appears defined as either user preference data waypoint and route data or all data depending on which of the above options you chose 3 Insert the disk into the drive either a floppy disk or a Zip disk then press the CONFIRM key The SAVING DATA dialog box appears defined as either user preference data waypoint and route d...

Страница 341: ...2 At the DATABASE FUNCTION screen press the RESTORE DATABASES key This key only appears after you ve saved a database to the 961 a database that hasn t been saved can t be restored The SELECT DATABASE TO RESTORE dialog box appears Select database to restore dialog box To restore only your setup and service options user preferences press the USER PREFERENCE key To restore only your waypoints and ro...

Страница 342: ...TION screen To use the restored database you must restart the 961 Press the PWR key to turn the 961 off then press it again to restart The 961 will now use the restored database Undoing a restore After the 961 restores a database you ll have the option to undo the restore operation As long as the 961 power is on you ll always have this option however if you restart the 961 by turning it off and th...

Страница 343: ...uires look ing at its log files to determine the cause If this happens you ll be prompted to save the 961 s log files which should then be sent to the Northstar Service Department If you have any questions call Northstar and ask to speak with a marine ser vice technician To save the log files 1 Press the STAR key until you reach the SERVICE MENU screen then press the DATABASES AND LOG key 2 At the...

Страница 344: ...ress the CONFIRM key to return to the DATABASE FUNCTION screen Maintenance functions Maintaining the 961 To clean the glass lens of the control head use a commercially available glass cleaner Periodically dust the processor espe cially around its floppy or Zip drive and the CD ROM drive Installing 961 software updates Periodically you ll receive a notice from Northstar about the release of a new v...

Страница 345: ...esponding with either your Northstar dealer or the factory be sure to have your 961 s serial number and software version available for this information see Viewing product information starting on page 14 2 Table 13 Service checklist Problem Possible solutions Pressing the PWR key doesn t power up the unit Check the fuse and the power to the head The control head powers up but not the processor the...

Страница 346: ...he display and reduce power consumption when the unit is on for many hours at a time Press any key to restore the previous brightness level The unit may be running too hot based on its current environment In this case the dis play screen dims only about a notch or so which is normal The display screen dims and also displays the error message unit too hot backlight ing dimmed There are two covered ...

Страница 347: ...ipments without a proper RMA number If you purchased your unit through a dealer call your dealer for an RMA number if you don t have a dealer call the Northstar ser vice department for an RMA number For details about how to contact Northstar see Technical support starting on page 1 6 Accessing Northstar s web site Northstar s website can be found at www northstarcmc com ...

Страница 348: ...Chapter 14 Service and Maintenance Functions Page 14 20 961 Operations and Reference Manual Rev D ...

Страница 349: ... for easy access and selection Scales from 4096 nm to 1 8 nm Displays chart data vessel waypoints routes avoidance points and multiple tracks GO TO waypoint function point with cursor then go to Chart centers on vessel or follows cursor Range rings automatically adjust to chart scale User adjustable vessel position predictor line Cursor oriented functions browse to a different location Layer contr...

Страница 350: ...ypoint name and position STEER screen Distance and bearing to waypoint STEER screen and 3D STEER screen XTE STEER screen and 3D STEER screen ETE and ETA STEER screen and 3D STEER screen Heading correction 3D STEER screen SOG and COG STEER screen and 3D STEER screen Automatic magnetic variation Waypoint and route management Sorts waypoints by symbol name distance bearing Sorts avoidance points by r...

Страница 351: ...try Waypoint navigation Navigate to coordinates and waypoints and along routes Save present position Steer to new point function go to any waypoint or coor dinates at any time Multiple waypoint queuing Follow stored routes in forward or reverse direction Plot current trip on CHART screen Choice of rhumb line or great circle navigation Automatic or manual waypoint changing Trip functions Arrival ti...

Страница 352: ...s overlay Enhanced Man Over Board MOB function GPS clock Setup functions User preferences GPS receiver 12 parallel channels Type L1 frequency C A code SPS 12 channel continu ous tracking Sensitivity C N0 34dB Hz Navigation accuracy 3 m 2DRMS with differential 100 m 2DRMS w o differential S A on Navigation update rate 1 per second Time to first fix 30 seconds typical Dynamics velocity 1800 km h acc...

Страница 353: ... rejection 50 dB at 1 kHz Acquisition time 5 seconds Noise Blanker Predictive variable length Signal Detection Acquisition via FLL tracking via PLL Tuning Resolution 2Hz Data processing Demodulation MSK Minimum Shift Keying MSK Bit Rates 25 50 100 200 automatically selected Data Decoding 2 parallel matched digital filters Power Power consumption 2 watts Interfacing IR link on control heads Two con...

Страница 354: ...o processor with single RG 59 coaxial cable Display screen 640 x 480 pixel 10 4 inch diagonal sun light viewable high temperature high contrast anti reflection backlit transmissive 65 536 color LCD Large easy to use backlit controls Protective plastic cover Flush and yoke mounts standard Two audio beepers for alarms and confirmation of actions Processor Supports two full functional waterproof cont...

Страница 355: ...nal single head Options Internal differential receiver 100 MB Zip drive replaces 1 44 MB floppy drive to back up all routes waypoints and the named one day track Combination GPS DGPS H field Loop antenna Warranty Two year limited warranty GPS Antenna Model AN150 active GPS antenna supplied with 50 foot cable and connectors Height 2 7 inches Diameter 3 0 inches Weight 0 5 pounds Model 8410 DGPS Ant...

Страница 356: ... GPS DGPS Combination Antenna Model AN205 P combination antenna supplied with 50 foot cable and connectors Mechanical enclosure ABS plastic Weight 0 60 kg 1 32 lbs Dimensions 152 mm W x 152 mm L x 67 mm H 6 00 W x 6 00 L x 2 63 H Polarization Right hand circular Gain beacons 20 dB Gain GPS 23 dB ...

Страница 357: ...stored in a GPS receiver The first time the receiver is turned on it requires about 15 minutes to collect almanac data Thereafter it usu ally can use the almanac data previously collected ARCS Admiralty Raster Chart Service autopilot An electronic compass related steering aid that automatically maintains a steady course baud rate The speed at which data is output from the 961 also the speed at whi...

Страница 358: ... cursor The indicator that appears on 961 screens as a flashing red box in a dialog box or text field which shows what character you entered acknowledge or edit Also known as the square box on the chart screen that when required you manually activate and position database A collection of information about waypoints routes tracks avoidance areas and charts that s stored in the 961 s memory default ...

Страница 359: ...e GMT Greenwich Mean Time GRI Group Repetition Interval The identifying time period of sig nals emitted by each loran transmitting chain The code identi fier 9960 Northeast U S indicates that the gap between the start of any two adjacent master signals is 99 600 microsec onds GRI code varies depending on geographic location All loran stations in one loran chain have the same GRI The 961 displays G...

Страница 360: ...ters comprised of a master station and at least two secondary stations loran receiver An electronic position finding device that receives pulses from loran stations magnetic variation The difference between magnetic North and true North In the continental U S this varies from more than 20 west in Maine to more than 20 east in Washington state Because the difference varies according to geographic l...

Страница 361: ...with GPS or DGPS PPNM Pulses Per Nautical Mile precipitation static Precipitation induced electrical charge that can build up on antenna surfaces creating poor radio reception Also known as P Static queueing waypoints The process of specifying a trip one or more waypoints in advance as you re navigating radar A device or system that emits radio waves for navigational purposes radar plotter A navig...

Страница 362: ... of time in millionths of a second between those loran signals received from the master and those from the secondary station These measure ments are used to determine position according to the Loran C system tide The vertical rise and fall of water caused by the gravitational pull of the moon and sun track A sequence of position measurements or a desired line of travel defined one second at a time...

Страница 363: ... of 3 2 installed charts viewing a list of 13 52 using 1 17 2 5 Arrow keys 3 31 Avoidance points copying and changing an existing avoidance point 7 12 definition of 3 24 7 2 displaying 7 3 editing an avoidance point on the avoidance points screen 7 13 editing an avoidance point on the chart screen 7 13 erasing an avoidance point on the avoidance points screen 7 14 making a new avoidance point on t...

Страница 364: ...ator series 13 35 Northstar operator code NOC entering 13 55 Skipper series 13 35 storing protecting 13 36 13 37 technical support 13 34 troubleshooting installation problems 13 49 updating 13 42 using 13 34 purchasing 1 17 2 6 13 31 Chart function key 1 15 3 6 Chart screen changing the chart screen settings 13 23 clearing the 4 12 clearzoom 4 3 4 35 13 26 cursor 4 15 G 2 cursor key functions of 4...

Страница 365: ...reen 4 12 ClearZoom 4 3 13 26 COG See Course over ground Contacting Northstar 1 6 Coordinates definition of 1 14 G 2 displaying 1 20 Corrections differential 2 15 Course over ground COG definition of 1 14 displaying on the chart screen 4 13 displaying on the steer screens 10 2 Cross track error XTE changing XTE scale setting 13 3 definition of 1 14 displaying on the chart screen 1 20 displaying on...

Страница 366: ...n and off 14 6 understanding the DGPS system 2 15 using to determine position 5 4 Differential GPS See DGPS Display changing the display settings 13 2 Distance and bearing displaying on the chart screen 1 20 displaying on the steer screens 10 2 Distance and speed units changing 13 4 Distance scale bar 1 19 13 28 E Entering data using the keypad 2 9 F Feedback sending yours to Northstar 1 7 First s...

Страница 367: ...atures 2 3 overview 1 2 specifications A 6 HCRF charts See ARCS charts or Chart CDs HCRF charts 1 17 I In and out keys 1 17 3 30 Info bars displaying on the chart screen 4 13 Initial start up See First start up Installing the 961 cautions 1 3 Interfacing the 961 2 12 3 14 14 9 specifications A 5 K Keypad using the 2 9 Keys beeping of 1 11 function keys 1 15 menu keys on the chart screen 1 20 L Lat...

Страница 368: ...the Markers for waypoints See Waypoints Menu keys on the chart screen 1 20 MOB key 3 27 N Navigation aids 3 2 basic terms 1 13 cautions 1 3 1 10 13 36 changing the navigation settings 13 9 features 2 2 following a route from the chart screen 10 10 following a route from the routes screen 10 6 going to a point on the chart screen 1 22 4 5 4 19 10 14 going to a waypoint from the waypoints screen 10 ...

Страница 369: ... 2 about the GPS receiver 14 2 viewing control head serial number and software revision 14 2 viewing the processor serial number and software revision 14 2 R Range rings 1 18 4 37 13 28 Receiver information See also DGPS and GPS setting the DGPS receiver 14 3 setting the GPS receiver 14 3 Reference ellipsoid constants 13 18 Reference manual using the 1 3 Repeatable accuracy See Accuracy Restarting...

Страница 370: ...ing the save key 8 10 marking a route to accept save keypresses 8 6 screen overview 3 20 S Satellite status of DGPS receiver 5 4 of GPS receiver 5 2 14 9 Save key 3 27 Saved waypoints definition of 6 12 setting the maximum number 13 5 Saving and restoring the database See Backing up the 961 database Saving log files 14 15 Saving your position using the MOB key 3 27 using the save key 3 27 6 10 6 1...

Страница 371: ...Speed over ground Specifications DGPS antenna AN205 P A 8 DGPS receiver A 5 GPS antenna AN150 A 7 GPS receiver A 4 hardware A 6 interfacing A 5 navigation A 1 position specifications A 2 power A 7 steer screens A 2 trip A 3 waypoint and route storage A 2 waypoints A 3 Speed over ground SOG definition of 1 14 displaying on the chart screen 4 13 displaying on the steer screens 10 2 Star function key...

Страница 372: ...cks definition of 1 14 3 23 9 2 displaying 9 2 editing a track 9 10 erasing a track 9 12 making a new track 9 6 screen overview 3 23 Trip changing the trip on the trip screen 11 5 definition of 11 2 deleting a trip point on the chart screen 4 34 displaying the trip on the chart screen 11 5 editing the trip on the chart screen 4 31 erasing the trip 11 12 going to a selected trip point on the chart ...

Страница 373: ...t on the waypoints screen 6 16 going to a waypoint from the waypoints screen 10 17 making a new waypoint on the chart screen 4 20 6 8 making a new waypoint on the waypoints screen 6 12 making a new waypoint using the save key 6 10 maximum number of saved waypoints 13 5 names of 4 35 6 4 13 25 screen overview 3 19 specifications A 3 switching waypoints manually or automatically 13 19 symbols for 4 ...

Страница 374: ...Index Page I 12 961 Operations and Reference Manual Rev D ...

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