User manual EAGLE ACCUNAV II - OPERATION INSTRUCTION

AccuNav II INSTALLATION AND OPERATION INSTRUCTIONS LITHO IN U.S.A. 988-0129-18 PDF compression, OCR, web-optimization with CVISION's PdfCompressor EAGI NOTES: WARNING! USE THIS GPS RECEIVER ONLY AS AN AID TO NAVIGATION. A CAREFUL NAVIGATOR NEVER RELIES ON ONLY ONE METHOD TO OBTAIN POSITION INFORMATION. CAUTION This GPS receiver, (like all GPS navigation equipment) will show the shortest, mostdirect path to a waypoint. It provides navigation datato the waypoint regardless of obstructions. Therefore, the prudent navigator will not only takeadvantage ofall available navigation toolswhentravelling to awaypoint, butwill also visually check to make certain aclear, safepath to the waypoint is always available. NOTICE! As of this writing, the Department of Defense (DOD) has not declared the GPS navigation system operational. The system is still in a testing phase. Satellites canbetumedofforaccuracycan bedegraded atwillbythesystem operators. Remember thatthe AccuNav II, or anyGPSreceiveris only as accurateas the systei it's using. Copyright0 1993 EagleElectronics All rightsreserved. All featuresand specifications subjectto change withoutnotice. All screens in this manual are simulated. PDF compression, OCR, web-optimization with CVISION's PdfCompressor Mp 012 I I ·:jj?IIlfl[eI I' ,pj4n,u, Ipumópip,p'In,,,, TABLE OF CONTENTS INSTALLATION POWER CONNECTIONS GPS MODULE INSTALLATION KEYBOARD 1 MI I (ii N : HH:MM:SS 00:00:20 2 3 6 GPS-HOWITWORKS ACCURACY THEEAGLE GPSMODULE GETTING STARTED INITIALIZATION CHANGE POSITION CHANGEALTITUDE CHANGE TIME CHANGEDATE COLD START POSITION/NAVIGATION DISPLAYS SATELLITE INFORMATION SCREEN POSITION SCREEN STEERING SCREEN NAVIGATION SCREEN CUSTOMIZE SCREENS PLOTTER PLOTTER CURSOR PLOTTING WITH AWAYPOINT PLOTTER MENUS PLOTTER MENU . PAGE1 CLEAR PLOT SETRANGE ICON ON/OFF ALARMS GOTO CURSOR CHANGE DISPLAY PLOTTER MENU - PAGE2 SELECT UNITS OF MEASURE BACK LIGHT ON/OFF GRID LINES PLOTTER UPDATE EVENT MARKER USING THE EVENT MARKER WITH THECURSOR ERASING ICONS HELP WINDOWS VIEWING WINDOWS OPTIONS WAYPOINT NAVIGATION HOWTO SAVE AWAYPOINT QUICKSAVE METHOD VIEWANDSAVE METHOD ENTER NEWWAYPOINT NAMEAWAYPOINT ERASE A WAYPOINT RECALL AWAYPOINT ROUTES CREATING A ROUTE 7 S S MI I - B 006 9 10 10 10 11 GROUP "H" II 12 12 13 14 15 15 16 17 17 IS IS IS 19 19 19 19 20 20 20 21 21 22 22 22 23 23 24 25 25 26 26 26 27 27 28 28 29 29 30 30 31 NAMEAROUTE WAYPOINT SELECTION FOLLOWING A ROUTE CANCEL NAVIGATION MODIFYING A ROUTE ERASING A ROUTE GPSALARMS ARRIVAL ALARM XTE (CROSS TRACK ERROR) ALARM ANCHOR ALARM CHANGING GPSSETTINGS 32 32 33 33 35 35 35 35 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 46 SELECT NMENDGPS RECEIVER TRUEANDMAGNETIC POSITION PRESET MAN OVERBOARD PCFOFFSET OPS MODULE SELF-TEST GPSSIMULATOR SPECIFICATIONS WINDOWS SUMMARY TABLE OF CONTENTS (cant.) 36 38 39 39 41 '13 c 44 45 WINDOWS SUMMARY All of the window groups Used by the ACCUNaVII are shown on the following pages. To view these groups, simply press the WINDOWS key, then repeated press the downarrow key. This will "cycle" the unit through all groups. GROUP "A" rcUEHENT POSITIOFf] 36°08.987' -- 950 50 559' N U DIe MPH W E S I u J..i, S I PDF compression, OCR, web-optimization with CVISION's PdfCompressor : I I S 1111 IMI 'A,,',,'I,,,,,,A,,,,,, U IDie N 22.0 LE.L GROUP "B" F*L.t*'4tiJj 'c" GROUP {{11t I ('I PII U N A',,,',I,',,,,,,I,,,,' I'u''Ain"I ,,,i,il '.i.4u.iu rni4Ii ni N E A ''I,,,,,,A,,,,,,I,,,i,,A N' a FIPII I U NI ''''A,,,,,,l,,,i,,A,,,,,,I,,,,,, A a 1MI 22.O I MI I fl ,,,iM,,,iiI,'n,, MI I ,,,,o',,,,,I,,,,,i ''i,, U N U N 0.29 a 0.26 FAEL GROUP "E" a GROUP "D" BRG 2800 I 010 MI Lull _______ .4 __ GROUP"F" GROUP"G" 45 AccuNav II GPS RECEIVER SPECIFICATIONS GPS Module Dimensions 2.5"H x 4.1W x 7" D Channels Five Parallel Four continuous for position All satellites in viewtracked rate One second Update Accuracy PositionS INTRODUCTION Velocity Maximum accuracy achievable with Standard Positioning Service 25 meters CEP 0.25 meters/sec RMS Without SA PDOP<6.0 The AccuNavII is a high quality, wide screen GPS receiverwith performance that is second to none in its class. Using menu featuresand "softkey"operation, the AccuNav II is also one oftheeasiest-to-use products Eagle has ever built. Thewide "Ultravision" screen shows the navigation and plotter screens with high resolution and detail. The display and keyboard are also lighted for nightoperation. This unitis also differential GPS (DGPS) ready for superioraccuracy. Read this manual and takeit with youthe firstfewtimesyou useyour unit. It makes a great reference if you need it. MOUNTING Install the AccuNav II in any convenient location, provided there is clearance behind the unitwhenit is tiltedforthe best viewing angle. Holes in the bracket base allowwoodscrewor through-bolt mounting. You may need to placea piece of plywood on the back of thinfiberglass panelsto secure the mounting hardware. Make certain thereis enough roombehind the unitto attach the power and OPS module cables. NMEA 0183 SENTENCES Minimum Recommended Sentence, Part B RMB Minimum Recommended Sentence, Part C RMC Present Position - Latitude/Longitude OLL APB Autopilot Steering Data Thesmallest holethatwillpassone powerorOPSmodule plugisone inch. Afterthe holeis drilled, passtheOPS cableconnectorupthrough hole the then passthe powercable downthrough it. first, SLOT Afterthecables havebeen routed, fill the hole with a good marinesealing compound. Offsetthebrackettocoverthehole.Route the powerandGPS module cables through the slot in the back of the bracket. PDF compression, OCR, web-optimization with CVISION's PdfCompressor 1 44 POWER CONNECTIONS The AccuNavII works from a twelve-volt battery system. For the best results, attach the power cable directly to the battery. You can attach the power cable to an accessoryor power buss, however you may have problems with electrical interference. Therefore, it's saferto goaheadand attach thepowercabledirectlyto battery. Ifthecableis tooshort, splice the #18 gaugewire onto it. The power cablehasfour wires; red,black, green, and white. Red is the positive lead, black is negative or ground. Make certain toattachthein-linefuseholdertothe red lead as close tothe power source as possible. For example, ifyouhave to extend the powercableto thebatteryorpowerbuss, attach one end ofthefuseholderdirectlytothe batteryor powerbuss. Thiswill protect both the unitand thepowercable in the eventof a short. The AccuNav II usesa 3-amp fuse. IMPORTANT! OPS MODULE SELF-TEST This feature tests the UPS module and returns a special code. Thiscode is of interest only to the servicedepartment. However, the AccuNav II interprets this codeand displays astatusmessage. This message is either "MODULE HAS PASSED" or "MODULE HAS FAILED" and shows at the bottom of the screen. The current software version numberalso appears near the bottom of the screen. Contact the factory customer service department if the module fails the self test. Do not attempt to use this product if itfails the self test. To use the self test feature, presstheMENU keytwicewhile it'sintheUPSmode, thenpress thekey nextto the "UPS MODULE SELF TEST" label. The screen shown at right appears. P CPS SELF TEST 0000 FFFF FYFF 0000 FEFF 0000 0000 0000 Do not use this productwithouta 3-amp fusewired into thepowercable! Failure to use a 3-ampfuse will void your warranty. BIT SUMMARY LOW ORDER RAM HIGH ORDER RAM PRE PROCESS TEST PRE PROCESS RAM MULTI INTERFACE LICO To exit fromthis screen, press the CLEAR key. TO "P' CONNECTOR ON ACCUNAV II TEST SIGNAL INJS 320 0FTWARE_VERSION CLEARI MODULE HAS PR RED WHITE WIRE RED WIRE GPSSIMULATOR This feature places position and navigation data on all screens, including the plotter. The unit "navigates" a closed course. It shows bearing and distance to go, course over ground, and other information. A recurring message appears, alerting youthat the simulator mode is enabled. Don't navigate whenthe simulator is on! To turn the simulatoron, press the MENU key twice, then press the key nextto the "UPS SIMULATOR OFF ON" label.The simulator mode starts immediately. To turn the simulator off, either press and hold the OFFkey or repeat the above steps. Press thekey nextto the "UPS SIMULATOR OFF ON" label. TO NMEA INTERFACE 3 amp FUSE DOPS BEACON RECEIVER AccuNav II POWER CONNECTIONS PDF compression, OCR, web-optimization with CVISION's PdfCompressor 2 43 is the difference between the location shown on the present position display and the position shown on the chart. Usetherightandleftarrow keys to move the black box to the numberthatyou wishtochange in the latitude, then enter the numbers. Use the up ordown arrow keys Position Correction flflr flFsET:NIooOO.oOO MOO' *I NUMERIC KEYS IUSE CHANGE VALUE TO UP="N" DH="S" The white and green wires are for a NMEA interface and a DOPS beacon receiver. The AccuNavll sends data to anotherelectronicnavigation devices through the white wire and receives data from a beacon receiver through the green wire. If the white and green wires are not used, tape their ends so that they cannot short. To connect a device to the AccuNav's white or green wires, attach a shielded, twisted pair cablefrom the device's NMEA intput to the white wire on the AccuNav It's power cable. Solder the ground conductor of the twisted pair and the shield to the black wire on thepowercable. Do not connect the shield to the other device. See the other instrument's manual for more wiring instructions. See the NMEA section in this manual for moreinformation. tochange the latitude fromnorthtosouth, ifnecessary. Press the key next to the "ACCEPT" label when you've entered the desired latitude offset. Repeat this procedure to the longitude. In this Position CorrjoJ Factor example, we have entered .012 degrees northlattitudeand .068 degrees east longitude as the PCF offset. That is the difference between the present position shown ontheunitandour position shown by the chart. In otherwords, ourpositionshown on the unit is 0.012 degrees north and 0.068 degrees east of the position shown on the chart. GPS MODULE INSTALLATION The GPS module can be installed on a flat surface or (with the supplied adapter) on a pole. Mount the module in an areathat guarantees a clear view ofthesky at all times. In order forthe module to receive thesignals from the satellites, it must not be obstructed. An ideal location is on a cabin roof, or deck. The gunhels also make a good location. Attaching the pole mounting adapter lets you install the module on a one inch mast. 5.5mm (7/32") 17mm However, for lightning protection, the antenna shoutn't be the highest part of the boat. (11/16") Hole (4 places) After you've entered the desired offset, press the key next to the "PCF OFFSET OFF ON" label. This turns the PCF correction factor that you entered on. To leave this screen, press the key nextto the "EXIT" label. Thisreturns the unittothe last usedGPSscreen. It also puts yourchanges intoeffect. To turn these changes off, return to this screen and press the key nextto the "PCF OFFSET OFF ON" label. Remember, Presetting the unit also erases any PCF offset, thereby turning it off. Surface Mounting - With Access If you have access underneath the mounting surface, use the gasket supplied with the OPS module as a template. Drill four 5.5 mm (7/32") holes and one 17 mm (11/16") hole for the module's cable. Attach the cable to the module and pass it down throughthe hole in thegasket and the mounting surface. Use 5 mm screws, flat washers, and lock washers to fasten the OPS module to the mounting surface. Route the cable to theAccuNavII. GASKET 5 MM SCREWS 3 PDF compression,42OCR, web-optimization with CVISION's PdfCompressor Surface Mounting - Without Access If you don't have access to the backside of the mounting surface,use the "cleats" supplied with the AccuNav II. (Note: This is assuming you can "snake" the module's cable to a location that is accessable. A hole will still need to be drilled in the mounting surface for the cable.) Using the gasketas a template, mark and drill the 17mm (11/16") hole for the cable. Attach the cable to the module and drop the other end of the cable through the gasket and down the hole. Place the module on the gasket. Slide the "cleats" onto each end of the module and (using the cleats as templates) mark four holesfor 5 mm (#10) mounting screws. Drillthe holes, then replace thecleats on the module and fastenthem to the mounting surface with 5 mm (#10) screws. Route the cable to the AccuNavII. PCFOFFSET The GPSnavigation system relies on complex mathematical calculations to determine your position based on satellite data and other factors. One factor is the Earth's shape. Since the Earth is notatruesphere,variations in the calculations haveto be made to accommodatedeviations. To make matters more complex, not everyone uses the same data to determine whatthe deviations are.Thesizeand shape ofthe ellipsoids that are used to approximate the earth's surface are improved often. This can lead to errors if your navigation device uses one ellipsoid,whileyour chart uses a different one. The term used for theseellipsoids is "Datum." To reduce theerrorfactorbetween datum, this unitgives youthecapability to move or "offset"theposition shown on the display to match theone on thechart. The unitwill add this offsetto all position displays at all times. Remember, the UPS error is very dynamic and the PCF offset should never be used in an attempt to cancel the error. In general terms this featureshould only be usedif your map indicates whatthe possible error is. Thisfeatureshouldalways be reset to zero (0) whenfinishedwith that chart. 'CLEAT" MARK AND DRILL FOUR PLACES For example, suppose you are stopped at a location that is accurately marked on a chart. Your unit shows a longitude position that is .010 degrees less than the one on the chart. Using the Positipn Correction Factor (PCF) Offsetfeature, you make the unit readthe same as thechart. If you move, the unit will continuously add the change to all position displays. This makes it more closelymatch the datum used by the chart. For this reason, youshould becareful whenenteringthePCFoffset. This offset is saved in memory. It doesn't change when the unit is turned off. However, a Preset does erase the PCFfactor. GPS To setthePCFfactor, firstpress the MENU key, then press thekey next Position Correct ioid Factor GASKET LAT OFFSET: ______________ IIJ.tAUJ.UJ.U LON OFFSET: E 0°OO.000' ______________ to the "CHANGE GPS SETTINGS" label. Now press the key next to the "ADJUST FCF OFFSET" label. The screen shown below appears. CABLE Nowpress the key adjacent to the "CHANGE OFFSET" label toenterthe correction factorfor your location. The screen shown at the top of the next page appears. Remember,this 4 41 PDF compression, OCR, web-optimization with CVISION's PdfCompressor The plotter display automatically shows a .1 mile display in the Man Overboard mode. Your position when the Man Overboard key was pressedis shown by the "S" with a circle and by the waypoint icon with a "0" Steertothewaypoint flag to get backto theposition saved whenthe Man Overboard key was pressed. IMPORTANT! The AccuNav II doesn't savethe Man Overboard position inthewaypoint table. However, it does save theposition on the Man Overboard screen. TheAccuNav II always shows navigation datatotheposition shown on the Man Overboard screen whenever the Man Overboard key is pressed. To stopthe unitfromnavigatingtothe Man Overboard position, press thekey next to the "DISABLE MOB" label. This resets the Man Overboard navigtion. Pole Mount First, threadthe pole mounting adapter onto the mounting pole or ratchet base. Align the pole mounting adapter so the module will facethe bow of theboat. Install and tighten the set screw intothe polemounting adapter and tighten it securely. This should prevent the GPS module from unscrewing from the pole. Place the gasket onto the pole mounting adapter. Now attach the cable to the GPS module and pass the cable through the gasket, pole mounting adapter, and pole. Set the GPS module on top of the pole mounting adapter and align the four threaded holes in the module with the holes in the pole mounting adapter. Using thefour stainless steel 5 mm screws and lock washerssuppliedwith the AccuNav II, attach the pole mounting adapter to the GPS module. This completes the assembly. For example, supposeyouare viewingthePosition screen, andyou press the Man Overboard key, then press the GPS key. The AccuNav II first displays then stores your present positionon the Man Overboard screen, thenswitches backtothePosition screen. Ifyoupress theMan Overboard key again, itwillstill show navigation datato the position youwerein when you first pressed the Man Overboard key - not your present position. Repeated pressingof the Man Overboard key does not repeatedly save yourpresent position!Theunitonlysavesthe position thefirsttimetheMan Overboard key is pressed. To save a new Man Overboard postion. you must first clear the old Dosition by Dressing the key adiacent to the "DISABLE MOB" label. POLE MOUNTING ADAPTER SET SCREW POLE You can navigate to a waypoint using the Waypoint Recall feature, howeverwhen you go backto the Man Overboard screen, the AccuNavll stops navigating to the recalled waypoint. Remember, saving thevictimisthe primary goal. Tryall options to rescue the person immediately afterthe accidenthappens. Training and education are also good accident preventatives. The Coast Guard has excellentsafetycourses. Instructall members on board yourboaton safety procedures before leaving thedock. Makecertain all on board knowwhat to do before any emergency occurs. If the pole or mast you're using isn't hollow or if the hole in the middleof the pole is too small for the connectors, usethe cable mounting adapter suppliedwith your unit.Thread thecable mounting adapterintothe OPS pole mounting adapter. Then thread the pole into the cable mounting adapter. Route the cable down the outsideof the pole. DULE CABLE MOUNTING ADAPTER POLE CABLE MOUNTING ADAPTER POLE 40 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 5 KEYBOARD PRESET The keyboard haskeys arranged intwo vertical columns plus a horizontal rowatthebottom. The keys in the leftand right columns are used to enter numbers, activatethe windows featureand menu selections.. The menu keyinthebottomrightcomerofthekeyboard activates thefirstmenu page. The keys along the bottomof the screen are used to activatethe event markers or man overboard feature, and make menu selections with the arrow keys. WINDOWS This key gives you access to the windows mode, which lets you customizedisplays. The Preset featurereturns all sonarand GPSunits to theiroriginalfactory settings. This resets the units of measure, speakervolume, display contrast, and more. This doesn't erase anywaypoints or routes, however. To presetthe unit, pressthe MENU key until the "PRESET UNIT' label appears. Pressthekey nexttothatlabel.Themenu screen disappears and theAccuNavII returns totheGPSposition screen.All unitswill be returned to their factorysettings. - P05 - Press this key to showthe Position Screen. PLOT - This key gives access to the Plotter. NAV - Pressingthis key shows the Navigation Display. STEER- Press this key to showthe Steering Screen. MENU- Press this key to show the menus and gainaccessto most functions WAYPOINT QUICKSAVES Press this keytoinstantly saveyourpresentposition. MAN OVERBOARD One of boating's mostterrifying events is having afriend orfamily member fall overboard. Thissituation canbe deadly on anybody ofwater,fresh or salt. It'sparticularly dangerous at night or if you'reout of sight of land. Of course, the first thing to do is remain calm and try all standard safety measures to try to rescue the person. If you lose sightof the person, you can usetheAccuNavII to help start a search pattern. WAYPTSAVE - Pressing this key lets you savea waypoint. WAYPT RECALL- Press this key to recall a waypoint. ALARM - Usethis key to set the OPSalarms. CLEAR - This key clears menus and erasesentries from the screen. EVENT MARKER - To mark a location on the plotter screen,use this feature. Onceyou're backat the helm afterinitial rescue effortshavefailed, press the AccuNav Ii's M4N OVERBOARD key. The screen shown below appears. Yourpositionatthetimeyoupressed the Man Overboard key is shown inthe top left cornerof the display. Beneaththe position is thetime that youpressedthe Man Overboard key. At thebottomof the screen are the navigation data displays showing the Distance(DTG), Bearing (BRG), Course (COG), and Time To Go (TTG) backtothe postion atthe top of the display. Using thesedisplays along with theplotterin thelowerright corner ofthe displaygives youthe information you need to steerbacktotheman overboard position. MANOVERBOARD - Pressing this key instantlysavesyour presentpostion and switchestheunit into amodethatshows navigation datatothelast saved position. ARROW KEYS - These keys are used to make menu selectionsand to move objects on the screen. ON - The ON key turns the AccuNav II on. OFF - Press and HOLD the Off key to turn the AccuNav II off.. · DISABLE jQiltlN 36°09.002' 1'flbJ 9S°OE49' S:08;58 N rrt AM IU1 0113 BRG COG 2390 Q43 113° flj IN T1G99:99:991W1 6 r iii id. S E PDF compression, OCR, web-optimization with CVISION's PdfCompressor 39 The lower half of the screen showsstatistics for each of the receiver's five channels. This includes the satellite number 15 13 02 ON (PRN), its status (STAT), the ë7 OK ON Differential Range Error User BAD ON 26 Time status (TIME), _______ (UDRE), and ifSA (SelectiveAvailablity) CLEAR _________ _____ is on or off. The UDRE is the from your position range error to the satellite. Ifthere is an "OK" in this field,then the range errorto that satellite is 8 meters or less 68 percent of the time. 11 OK OK OK OK BAD 01< OK OK OK OK OK OK OK OFF OFF GPS - HOW IT WORKS The Global Positioning System (GPS) is the bestapproach to navigation that has ever been devised. Conceived by the Department of Defense (DOD)andthe United States military,the GPSsystemisan answertotheir needs of 24 hour global positioning, 365 days a year. Basically, the system works by using a constellation of satellites orbiting Earth 11,000miles in space. There will be 21 satellitesin orbit when the systemis fully operational. Three more satellites will act as spares, for a total of 24. When all satellites are in place, at least four of them will be in viewnearlyanywhere on Earthtwenty-four hours a day. The OPS receiver requires at leastthreesatellites to give a "2D"fix. (A2D fix isyour position in latitude/longitude. A3Dfixisyourlatitude/longitude plus altitude.) When it locks on to at leastfour satellites, it displays a 3D fix. For more information, read your beacon receiver's manual. SELECTUNITS OF MEASURE (See the Select Units of Measure in the Plotter section of this manual.) TRUE and MAGNETIC POSITION True and magnetic north are not always the same. True northis thetopof theworld. It's where all lines of longitude converge. Magnetic north is the location our compasses point. It lies several hundred miles tothe south of true north, at a location in Canada. Charts are usually laid outaccording to a Mercator projectionthat usestrue north. If you plota course on a chart usingthe Mercator projection, you'll either haveto convert magnetic readings to true or use true readings. It takes three satellites todetermine position. The AccuNav II can display navigation information in magnetic or true. When it's turned on for the first time magnetic is used. To switch to true, press the MENU key whilea GPS screen is displayed. Next, press the key nextto the"CHANGE GPS SETTINGS" label. Now press thekey nextto the"SELECT UNITS OF MEASURE"label. Nowsimply press thekey next to the "BEARING" label. Thismoves the black boxfrom "MAO" to "TRU." Press the key nextto the "EXIT' label whenyou're finished. As the receiverlockson toeach satellite, it calculates thedistancefromthe satellite by measuring the length of timeit takesthe radio signal to reach it. Each satellite has an extremely accurate clock that tells the receiver when the radio transmission started. The receivercompares that time against its own clock, thus it knows how long it took the radio signal (travelling atthe speed oflightl)to reachit. Ifyouknowtimeandspeed, then you cancalculate distance. Once you have this fromthree satellites, then the receivercan determine position. 7 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 38 ACCURACY You mayhaveheard talesof extraordinary accuracy from GPS receivers. The DOD requires accuracy of 10 to 15 meters fromthesatellite system. However, only the military getsthis precision. The way the militarykeeps us and other unauthorized people fromusingthe moreprecise systemis coding. In other words, the data coming from thesatellites is encrypted. Civilian GPSreceivers use"C/A Code." It'saccuracy is intentionallyworse than the military's "P Code." In this manner, civilian users worldwide can benefit from excellent position fixes. Meanwhile, the military keeps the most accurate systemaway from potential enemies. Theoretically, C/A code can give accurate position fixes up to 15 meters.This is more than adequate for most people. DGPS (Differential GPS) BEACON RECEIVER SETUP You'll haveto tell the AccuNav II which beacon receiver's data to expect and set up the parameters forthat data. To do this, first press the MENU key, then pressthekeynexttothe"CHANGE GPSSETTINGS" label. Now press the key next to the "SELECT NMEA" label. The screen on the previous pageappears. Press thekeynext tothedesired beacon receiver. The beacon receiver is selected, now you'll need to set it up for the frequencyand bit rate of the station you'll be using in your area. Repeat the above stepstogetthe NMEA screen as shown on the previous page. Nowpressthe key nextto the "SETUP BEACON" label. Thescreen shown belowappears. However(as of thiswriting), the military isn't satisfied with C/A's potential accuracy in the hands of the world. So, it's degrading it further with "SelectiveAvailability" or SA. This is small, random errors intentionally addedto the system so your accuracy will typicallybe within 100 meters. Of course, accuracy also depends on the angle of the satellite above the horizon,signal-to-noise ratio, the number of satellites tracked at one time (the more the better), and otherfactors. Thesmallest ranges onthe plotter maynot be usable ifthe SAis high.The present positionsymbolcanmove offthe screen even whileyou're sitting still. Don't let this discourage you, however. GPS by nature has much faster updates thanothersystems (such as Loran), and typicallyis much easier to use.Accuracy, even with SAon is still better than mostothernavigation systems. You'vepurchased oneofthefinestnavigatiorrinstruments on the markettoday. We hope you'll enjoyit for manyyearsto come. The station frequency and bit rateareshown on the right side of the screen. Press the key adjacent to the "INC FREQ" to increase the station frequency orthe "DEC FREQ"todecrease it. Do the samefor the bit rate. When thestation frequency and bit rate are adjusted to their proper settings, press the key next to the "EXIT" label. The AccuNav II returns to the last used GPS screen. The letters "DGPS" appear next to the "POSITION" on all screens that show your present position, showing that the beacon receiver is working. To viewthestatus ofthe beaconsignal, pressthe MENU key until thefourth menu pageappears. Nowpressthe key adjacentto the "DIFFERENTIAL GPS STATUS" label. If the beacon receiver is receiving data from the transmitterand is connected properly to the AccuNav II, a screensimilar to the one shown at right appears. The EAGLEEGP-1 GPS Module This GPS receiver is currently used in all Eagle GPSreceivers. It'ssmall, rugged, and fast.The five channel design lets it trackall satellites in view and acquire up to five satellites at one time. It sends position information to the AccuNav II once every second. By incorporating Rockwell's GPS receivertechnology with Eagle's state-of-the-art designand manufacturing capabilities, Eagle brings to theconsumer the mostadvanced line of GPS marinenavigation systems available in the world. 1' 8 This page showsthe station ID number, its frequency and bit rate, the "health" of the station (0 = best, 5 = worst), signal strength (the higher the number, the better), andthe signalto-noiseratio (SNR). The highertheSNR number, the better. PDF compression, OCR, web-optimization with CVISION's PdfCompressor pcn ah1 fl15 fl13 tJ02 It27 26 37 OK OK OK OK BAD OK OK OK OK OK OK OK OK OK BAD OFF OFF ON ON OH SELECTNMEA TheAccuNavIIsendsdataoutthewhitewire onthe powercableaccording to standards set by the NMEA (National Marine Electronics Association). This allows the AccuNav II to send position, depth, and navigation information to "listener" units,such ascharting instruments, autopilots, and other marine instruments. TheAccuNav II usesthe following NMEA data protocols: NMEA 0180 and 0183. NMEA 0180 sends steering information only. It's useful mainly for autopilots. NMEA 0183 sends depth, position, steering,speed, and more. In order to usethis feature, the whitewire on the powercable must be connected to the NMEA data inputon the other instrument. Seetheinstallation section inthefrontof this manual forwiring connection information. GETTING STARTED Initialization - Power On In orderfortheAccuNavII to lock ontothesatellites, it mustfirstfindthem. Ifyousimplyturntheuniton and wait, the unitwill findthe satellites by itself in 15 minutes orless. Thisiscalled "Cold Start." Ifyoulet itfindthe satellites, thetime displaywill probably be wrong, since itwill be showing UTC time orthe timeat Greenwich, England. However, allothernavigation displays, including the position display will be correct. (Youcan set the timeto your local time.) To speed upthesatellite acquisition process, you can initialize the AccuNav II or "tell it where it is" the first time it's turned on. This initialization process is usually done only once and requires the following data: 1. Presentposition in latitude/longitude 2. Elevation above sea level (altitude) 3. Today's date and time The AccuNav II also has the capability to receive differential data from a beacon receiver. This gives the unitmuch better 0180 accuracythan normal. However, before purchasing and in- rHFIEA 0183'SlIqRLINK DOPS stallingabeaconreceiver,make certain therearetransmitters in the areayouwishto use. PresSETUP BEAC0N ently, the AccuNav II can use the Magnavox MRB-2A or StarLink MX-50R. Please note that the AccuNav II doesn't send NMEA 0183 data whenthe Magnavox MRB-2A beacon receiver is activated. ENTLY INMEA OFF'MAGNAVOX USING: ?NMEA Theunitusuallyonlytakesafewminutes or less tofind the satellites once it's been initialized by the user. Afterthepowercable andGPSantenna module are installed, press theON key, then pressthe MENU key. Nowpress the key nextto the "CHANGE GPSSETTINGS" label. Finally, press the key nextto the "SETLAT,LON, ALT, TIME, DATE" label.The screen shown below appears next. This is the GPS setup screen. The settings now in use are shown atthe top ofthe display. If you're using the unitfor the first time, these settings are probablywrong for your positionandtime.Tochange anyof the numbers on this display, simplypressthe key nexttothe arrow with the desired label. For example, to change the local time, press thekeynextto the "CHANGE TIME"label. LATITUDE LONGITUDE ALTITUDE LOCAL TINE LOCAL DATE F'MAGNAUOD0P3 N 36°08.852' 14 9E°SO.484' 1696 10:17:23 PM 1/03'1992_ NMEA SETUP Once youconnectthe wiring properly,theAccuNav II mustbe told which NMEA data format to use. Consult the owner's manual of the other equipment to see which format it needs. Then set the AccuNav II as follows: First, press the MENU key. Next, pressthe key nextto the "CHANGE GPS SETTINGS" label. Now press the key nextto the "SELECT NMEA" label, ELATHAHGEAL UANGETIMr DATE The screen shown above appears. Thedata format in use currently shows atthetop of the screen. Press the key next to the desired data output. Now press the CLEAR key. The AccuNav II will return to the last used GPS screen and send NMEA data out thewhite wire on thepower cable. Note: Ifyou don't usethe "cold stari'feature,then youwill haveto change all ofthesettingson this page to their correctvalues. In otherwords, you can't simplyenteryour present position and have the unitfindthe correct values by itself. 9 PDF compression, OCR, web-optimization with CVISION's PdfCompressor 36 CHANGEPOSITION Use a chart to determine your position if you don't know it. The latitude! longitude that youenterdoesn't have to be extremely accurate. Typically, if you enter a position within one degree of your present position, the AccuNavII should quickly find your actual latitudeflongitude. To change your present position, firstpress the key nexttothe"CHANGE LAT" label. Thescreen shown below appears. Use the downarrow keytochange the "N" to "5", if necessary. Next, simplyenter your present latiLATITUDE N 36008.852? tude usingthe numbered keys. LONGITUDE U 96050.484? Noticethattheposition entered ALTITUDE 1696 is in degrees, minutes, and LOCAL TIME 10:17:23 PM hundredths of a minute. (Not LOCAL DATE 1'03'1993 _____________________________ If you make a misseconds!) take, press the left or right arTO CHANGE LJALUE row keys to moveto the numUP="N" DN="S" ber in the latitude that needs _________________________ changTh Aft rthe latitude ARRIVALALARM The arrival alarm sounds a tone whenyour position is within the alarm's radius ofa waypoint. For example, the alarm sounds ifyou come within .1 mileofa recalled waypoint ifthe arrival alarm's setting is .1 mile.Thealarm is adjustable from .01 to 9.9 miles. XTE ALARM The XTE (cross track error) alarm sounds a tone when your cross track error is greaterthan the alarm's setting. Changing the XTE alarm also changesthe XTE range on thesteering screen. The alarm is adjustable from 0.0 to 9.9 miles. ANCHORALARM Theanchor alarm sounds atone whenthepresentposition movesoutside a presetradius. For example, if you settheanchoralarmto .1 nautical mile (600feet), then the alarm will sound if youmovemorethan 600 feet from thelocation whereyousetthe alarm. It'sadjustable from0.01 to 9.9miles. CHANGING GPS SETTINGS The AccuNav II mustbeinitializedwhenit'sturned onforthe firsttime. This is described atthebeginning ofthe GPS sectionin this manual. However, ifyouwishto changeonlyoneof LATITUDE N 36°08.852' theparameters (such as time), U 95°5O.484' LONGITUDE use the menu features in the ALTITUDE 1696 "CHANGE SETUP" menu. To LOCAL TIME 3:27:16 AM do this, press the MENU key, LOCAL DATE 8'03'2032 then press the key next to the "CF-lANGE GPS SETTINGS"label. Finally, press the IUE ICKEYSIP fl as nextto the "ACCEPT'label. Now press the key next to the "CHANGE LON" label. The black box will be next to the "E" on the longitude. Again, usethe up or down arrow keys to switchthe "E" to "W" or west longitude, if necessary. Now enter the longitude using the numbered keys. Be certain to entera zero "0" as the first number in the longitude ifit's lessthan 100 degrees!Afteryou'veentered the last number, press the key next to the "ACCEPT'label. CHANGE ALTITUDE LccEPT To enteryour present altitude, press the key nextto the "CHANGE ALT" label. The AccuNavII needs to know your elevation abovesea level. (Not your heightabove the ground.) Again, an approximation is usually sufficient. Use the numbered keys to enter your altitude data. Press the up arrow key if your altitude is below sealevel. Forexample, suppose you're in Death Valleyand the spotyou'restanding in is 35 feet below sea level. You wouldneed to enter the numbers "35", then press the up arrow keyto changeitto-35feet. Pressthe keynexttothe"ACCEPT" labelwhenyou're done. CHANGE TIME to the "SET LAT, LON, ALT, keynext TIME, DATE'label. Thescreen shownbelowappears. Using the menus on this and following menu pages, you canchange the Initial Position, Time-Date-Time Offset, or Altitude withoutaffecting any other initialization setting. All of these menus work identically to the ones described in the initialization section at the beginning of the GPS section. After you make a change, the unit returns to the GPSor plotterscreen. frE == 35 'CHANGELATRZflW"ZLT DATE .. aGE LONJINEM To change the local time (the timeat your position), press the key nextto the"CHANGE TIME"label. The screen shown atthetop ofthe nextpage appears. You mayneed to re-initializetheunitifyou move a long distance (over100 miles) withtheunitoff. In this exampleyouwould need to entera new initial position to help the AccuNav II find the correct satellites quicker. PDF compression, OCR, web-optimization with CVISION's PdfCompressor 10 ARRIVAL_ON OFF blackboxmoves overthe numbers on the right side. In the example shown atthetop ofthe next page, the arrival alarm is selected. p is IT IaISACcEPT. Now pressthe key nextto the "CHANGE LIMIT" label. The screen shown below appears. Thecurrentalarm valueshows in a windowon thescreen which I IT CHANGE H LI1Ij To enter today's date, press the key nextto the "CHANGE labled "OLD VALUE" DATE" label. The screen shown below appears. Enterthe date usingthe numbered keys. When you'refinished, pressthe key "ACCEPT" label. Use the numbered keys to changethe alarm's setting, then pressthe key next to the "ACCEPT" labeltoenterit. Forexample, to setthe arrival alarm to .2 mile, press the 0 key, then the 2 key, then press the 0 key NUMERIC KEYS TO CHANGE VALUE. USE again. When the desired value RIGHT ARROW TO has been entered, press the key nexttothe "ACCEPT' label. TheunitreturnstotheALARMS screen as shown below. Notice that the alarm has automaticallybeenturned on. Ifan alarm is off, and you adjust it, the unit automatically turns it on. PA I 1USE 34 rnLuro.lr 020 ___________ Remember, an alarm to less than one (1), entera zero first. For example, to set the arrival alarm to .5 miles, press the following number keys: 0 5 0. Nowyou canchange anyother alarm or press the key next to the "EXIT" label to leave the alarm menu. You can return to this alarm screenatanytimeto adjust any alarm,turnoneoff, orallofthem on, as desired. Each alarm worksand adjusts indepentlyof alarm follows. if you need to set EPT I Thenumbers atthetopofthescreen should becorrect.Iftheyaren't,press the key next to the label that LATITUDE N 36°O8.862' you need to change. If every1.l 9S°5O.484' LONGITUDE thing is correct, press the key 1696 ALTITUDE next to the "EXIT" label. The 10:17:23 TIME unit will switch to the position DATE 1/03/1993 screen and start searching for KEYS the satellites currentlyin view. It should find the satellites and show a position in a few min- TMERIC utes. COLD START When the AccuNav II is turned on for the first time "out of the box", it automatically sends a "cold start" message tothe GPSreceiver. You also can sendacold startmessage to the receiver. ACEPT CUALUE If the unit can't lock on to the satellites using thedata you've givenit, or if it hastroublefinding the satellites, perhaps it is usingthe wrong data. This can happen if you've entered the wrong data by accident. For example, given iteastlongitude instead ofwest. Or ifyou've moved a longdistance with the unitturned off. To senda cold start message to the receiver, pressthe MENU key. Now press the key nexttothe"CHANGE GPS SETTINGS" label. Finally,press the key nextto the "GPS "COLD" START" label.The unitwill begin a cold start technique to find the available satellites. It should lockon to them in 15 minutes or less. Remember, whenit does, your local timeand possibly 11 theothers. Adescription ofeach PDF compression, OCR, web-optimization with CVISION's PdfCompressor date display will probably be wrong. Use the method shown above to set the time and date to their proper local settings. Once this is done, an internal clockwill keepthe correct time, evenwhen the unitis turned off. The GPS system updates this clock when the unit is locked on to the satellites. POSITION/NAVIGATION DISPLAYS TheAccuNavII hasa position screen, navigation screen, plotter, steering indicator, and a satellite information screen. These displays were designedto showthemostimportant data. However, you cancustomize all of them (except the satellite position screen) to some extentthrough the "Change Display" feature on the firstGPS menu screen. (There are other screens that can be customized by using the Windows feature. See the Windows section for more detail.) To customize these screens, seethe "Customize" section. IMPORTANT! ERASINGA ROUTE To create a route, first press the MENU key. Next, press the key next to the"More" label.Nowpress thekey nexttothe "ROUTE PLANNING"label. Route number one appears on the right side of the screen. The list of waypoints used in the route are shown beneath the route number and name. If you wish to erase a different route, press the key next to the "÷RTE" or "-RTE" labels to cyclethrough the available routes. After you'veselected thedesired route, pressthe key next to the "ERASE RTE" label. Thiserases the routefrom memory. Finally, press the key next to the"EXIT" label. This returns you to the GPS display. GPSALARMS The AccuNav II hasthreeOPS alarms. One is an arrival alarm that sounds when you come within a preset distance to a waypoint. The next is a cross track error alarm that sounds course more whenyoumoveoff than the alarm's setting. The lastalarm is an anchor alarm. It sounds when you move outside of a preset radius. All of these alarms are set identically. then it means that data is invalid. Do not rely on that data if it is flashing. For example, if the position display is flashing, then the unit haslost the satellites and hasn't re-aquired them. The position that is flashing is your last known position, notyourpresent position! Do notnavigatewiththis unit until you have found the reason the unit has lost the satellites! Each ofthe following screens is available by firstpressing the MENU key, then pressing the key next to the desired screen label. A detailed description ofeachscreen follows. (Press the MENU key twiceto seethe SatelliteInformation menu.) Ifthedatashown in digital numbers on any screen on this unitisflashing, IU >TE AL ON ON 0.1 0 0.50 : SATELLITEINFORMATION SCREEN Thesatellite information screen shows technical data about each satellite in view. The AccuNavII has a five channel GPS receiver. Dataon each channel is shown at the top of the display. The channelsare __________________________________ --s :iau numberedone throughfive on 13 T 600:31101 35 12 1 s 1 270132401 29 the left side of the screen. Ev'O'2 satellite inthe constellation ery 24 1 T 250?3030t 42 has a number assigned to it, 14 1 T 19°i ?4°T 35 calledthePRN.ThePRNisthe first number in the channel's 1.69 13 02 06 24 row. TR1C stands for "track." If HOOP GOOP 3.87 the AccuNav II is trackingthe POOP 3.33 satellite, then a "T" is placed in TOOP 1.98 thiscolumn. IftheAccuNavllis UDOP 2.87 _____________ .rii &i rT 1tjjofl I To adjusta GPSalarm, press the ALARM key. The screen shown above appears.To turn any alarm on, press the key nextto the desired alarm's label until the black box moves to "ON", as thescreen belowshows. To changean alarm's setting, press the key nextto the desired alarm until the c "IN 2.1fl 12 TE.50 . 33 PDF compression, OCR, web-optimization with CVISION's PdfCompressor IMPORTANT! Turning the arrival alarm off prevents the AccuNavll from sequencing to the next waypoint in the route. This, in effect, turnstheroute off. However, the unitwill still show navigation data to the currentwaypoint in the route at thetimethearrival alarm was turned off. CANCEL NAVIGATION searching forthe satellite, then a"S" appears. ELV is theelevation (height) of the satellite above the horizon from your position. AZM is the azimuth or direction ofthesatellite fromyour position. For example, iftheazimuth ofasatellite is 180 degrees, then it is duesouth. SNRisthe signal-to-noise ratio. Thistells youhow strongthe satellite's signal is. ThehighertheSNR number, the better. To stop the AccuNav II from navigating to waypoint or navigating to a waypoint in a route, press the MENU key twice. Now press the key next to the "CANCEL NAVIGATION" label. Thisstops all navigation. NOTE: Canceling navigation does not erase the route or any waypoints from memory. It merelystopsthe AccuNav II from navigating. Thesatellites that arevisiblein the skyfromyour position are shown in the lowerright corner of the screen underthe"VISIBLE SATS" heading. In the lowerleft cornerof the screen are the DOPS displays. These show youthe"Dilution Of Precision" (DOP)forthehorizontal (1-IDOP), geometric (GDOP),position(PDOP),time(TDOP), and vertical (VDOP). The GDOP is thecombination value of HDOP, VDOP, and TDOP. The smaller the GDOP'snumber is, the better. The GPSreceiverselects satellites based on GDOP, thereforeit always tries to usesatellites that have good DOP values. These depend on the azimuth and elevation of the satellite, and any ground based obstructions. Remember, the smallerthe number - the betteron all of the DOPs. POSITION SCREEN Anypartofa route canbechanged at anytime. Forexample, suppose you have a route consisting of waypoints number 1, 2, and 3 and you wishto number5. Simplypressthe MENU changewaypoint numberatowaypoint then press the key nextto the "More" label. Next, press the key next key, to the "Route Planning" label. Finally, press the key next to the "Recall Route" label. Route number one appears on the right side of the screen. Thelistofwaypoints used in therouteare shown beneaththeroutenumber and name. Using next MODIFYING A ROUTE the down arrow key, movetheblackboxtowaypoint number 3. Now press the key to the "CHANGE" label. Use the numbered keys to change the waypoint from3 to 5. Next, press the key nextto the "ACCEPT" label. You've 3 changed thewaypointfrom to 5. Finally, press thekey nextto the "EXIT" label and you'refinished. Remember, any pad of the route can be changed at any time. ! tJSIEL. PIE --