AccuNav II INSTALLATION AND OPERATION INSTRUCTIONS LITHO IN U.S.A.
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.
Mp I MI I 012 I B MI I 006 TABLE OF CONTENTS •:jj?IIlfl[eI (ii INSTALLATION POWER CONNECTIONS GPS MODULE INSTALLATION KEYBOARD N ,pj4n,u,Ipumópip,p'In,,,,I' : GPS-HOWITWORKS 7 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 M
TABLE OF CONTENTS (cant.) SELECT NMENDGPS RECEIVER TRUEANDMAGNETIC POSITION PRESET MAN OVERBOARD PCFOFFSET OPS MODULE SELF-TEST GPSSIMULATOR SPECIFICATIONS WINDOWS SUMMARY 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.
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 Velocity Maximum accuracy achievable with Standard Positioning Service 25 meters CEP 0.25 meters/sec RMS Without SA PDOP<6.
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 thepowercabledirectlytothe battery. Ifthecableis tooshort, splice #18 gaugewire onto it. The power cablehasfour wires; red,black, green, and white. Red is the positive lead, black is negative or ground.
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. Position Correction flflr flFsET:NIooOO.oOO MOO' *I NUMERIC KEYS IUSE TO CHANGE VALUE UP="N" DH="S" Use the up ordown arrow keys tochange the latitude fromnorthtosouth, ifnecessary.
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.
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.
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.
The lower half of the screen showsstatistics for each of the receiver's five channels. This includes the satellite number 15 13 OK OK OK OK BAD 01< OK OK OK OK OK OK OK OFF OFF 02 ON (PRN), its status (STAT), the ë7 OK ON Differential Error User Range BAD ON 26 Time status (TIME), _______ (UDRE), and ifSA (SelectiveAvailablity) CLEAR _________ _____ is on or off. The UDRE is the from range error your position to the satellite.
ACCURACY You mayhaveheard talesof extraordinary accuracyfrom 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.
SELECTNMEA TheAccuNavIIsendsdataoutthewhitewireonthe 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 aschartinginstruments, 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.
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.
ARRIVAL_ON OFF blackboxmoves overthe numbers on the right side. In the example shown atthetop ofthe next page, the arrival alarm is p
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.
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. 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.
At the bottom of the screen are the Local Time and Cross Track Error Displays. Pleasenote thatyou must recall a waypoint to use the Bearing and Cross Track Error displays. STEERING SCREEN The steering screen shows a pictorial view of your boat and course travelled. This is called a Course Deviation Indicator or CDI. It also shows Distance To Go (DTG), Speed OverGround (SOG), Bearing to Waypoint (BRG), and Course OverGround(COG). Pressthe STEER keytoviewthis screen. Yourpresentposition isshown bythearrow.
This menu lets youselect the route number, name the route, and choose thewaypoints used in the route. Namea Route To assign a name to a route, press the key next to the "-i-RTE"or "-RTE" labelto move through the list of routes. When the desired route number appears in the windowatthe top of the screen, press the down arrow key until the black boxmoves to the "NAME" position. Now pressthe key next to the "CHANGE" label. The screen shown below appears.
=l——— To change anotherdigital display, press the left or right arrow key. The label in the next digital displaybox changes as youpressthearrow key. Again, pressthe up ordownarrow key N U The digital displays available for use are: WPTNAME 110 XTE LOCAL TIME COG 36° 08856' 95° 50.496' . 27.8 MIIH 287° to change thedisplay. BRG Bearing SOG DTG DESTWPT POSITION ALT RTE NAME •ia PMHIL 0.
name. For example, to name a waypoint "COVE 1", press the number "0" keyrepeatedly until the letter "C" appears in the window. Next, press the right arrow key to move the black box to the next letter position. Now press the "3" key repeatedly until the "0" appears on the screen. Repeat this process until the entire name has beenwritten onthescreen. Now press the key nextto the "ACCEPT" or "ENTER" label. The AccuNavII returns tothe waypoint savemenu as shown above.
andcurrentonyourboat. Italso 1 N 36°09.037' U 95%0408' J simplifies navigation. To use L the plotter in this manner, first DTEi N jul recallawaypointorstartaroute. (SeetheWaypointRecallsectionformoreinformation.) Then r fl: press the PLOT key. A screen similar to the one at right appears. f fl: 'bpij —l. r'706 -:1 a. E The "5" is your starting locaS 2M1 ____ tion. This was your position whenyourecalledthewaypoint. The flashingcircle with a cross is your present position.
Saving PresentPosition as a Waypoint (QuickSave Feature) TheAccuNav II lets yousaveyour present position as awaypoint with only one key press. This"Quick Save" feature lets youeasilysavethe position of a wreck or otherlocations. To save your present position as waypoint, simply press the WAYPT QUICKSAVE key. TheAccuNavII takes yourpresent position and assigns the firstavailable waypoint number to it.
CHANGE DISPLAY The four digital displays on the left side of the plotter screen can be changedor customized at will. When the AccuNav Ilis first turnedon, or after it's preset, thefourdigital displays are DistanceTo Go (DTG), Speed Over Ground (SOG), Bearing to waypoint (BAG), and Course Over Ground (COG). The available displays that can be placed in these windowsare: DistanceToGo(DTG), Speed OverGround (SOG), Bearing towaypoint(BAG), CourseOver Ground (COG), Cross trackerror(XTE), and Altitude (ALT).
WINDOWS You can change the displays on the AccuNav II by using the windows feature. This lets you use different displays to suit your own fishing or boating situations.The screensavailable in thewindowsmode are divided intotwo or morewindows per screen. Eachscreen ofwindowsis called a "group". ThisAccuNavil givesyou 8 differentwindow groups. Group"A"as shown at right has the plotter, Course Over Ground, and '' I,;,t ' ' steering displays showing in three separate windows.
.. travellinga long distance, the trackline mayend prematurely due to the limited number of - .-. dotsavailablethat plotthetrack. Using a longerupdatetimeTo changethe update rate, press the MENU key whilethe unit is 10 SECONOS CURRENT in theplottermode. Nowpress UPDATE RATE the keynext to the PLOT UP- r"cONDS INSTANT DATElabel. Thescreen shown above appears. The available rCLEAR plotupdate timesareinstant, 2, 5, 10, and 20 seconds. Simply pressthe keynexttothe desired update time.
