Read Instructions - JR International
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1. 24 Model Xr 5DC Instruction Manual waling ut a s te oy 4 4 MN ALLL n RS n N gt 4 A TTT Thos e Q 7 O ta ys TTT thas POLARIS USER MANUAL WARNING Since the device is designedonly as partof aid orreference for generaloutdoor activity not forthe condition requiring extremely high liability such as life conservation Itis user s responsibility to judge the navigational capability of the system if the product is usedfor such purpose Although the unit is meantto be waterproof user should nottry to immerseit into wateror use itin rainy environment Do nottry to makeany modification toeither the mechanicsor the circuitry without any permission from our distributor User isrecommended to readthis manual beforeany use ofthis unit Rememberto keep this manual in aproper place forfuture reference Information inthis document is subject to change without notice Superb Sound Products Ltd reserve the rightto change orimprove or modifyits products andmake changes tothe content without obligation tonotify any personor organization ofsuch changes CAUTION Because of long period of shipping the three accompanying AAA batteries whichare barely charged for testing beforeshipping out andmay discharge toempty when arrived are not guaranteedto power on theunit successfully afterbeing installed Ifthis case doeshappen you arerecommended to use the accompanying adaptor tocha2. indicating that this datafield is beingactivated for datainput S3 ps ay Mite Ee ELIE oa Wwe se SS Li eA ESI AJDT poo OD y te o e S5 S4 sie tt HOME gG aaa Eo a Figure 4 A Cycle of High Lighted Icon in Busy State The SET button is used to activate adata field fora data input In standby state pressing the button for 3 seconds will commence digital compass calibration The OK button is toconfirm a datainput and quit Also it cancycle you through data field in normal state In standby state pressing and holding the button will start the Courser function in case of no MIIC included Pressing and holding the POWER button will turn the unit On Off Pressing and releasing will also igniteor darken display backlight 2 Dual keying Press and holdthe two buttons simultaneously for twosecond to shiftmeasurement unit Press thetwo buttons fortwo seconds totoggle GPS navigation pointer pointing function pointing to Point n 1 previous point of current point position of this point has been marked before or pointing to Destination Press the two buttons for two seconds to toggle GPS navigation pointing function pointing to Point n 1 next pointof current point position of this point has been marked before or pointing to Destination POLARIS USER MANUAL Operating Polaris The Polaris unit operates on three AAA batteries which are located on the back oft
3. ee mO tie e T oni 11 Timer1 Figure12 Timer 2 Timer 2 displays Greenwich Mean Time or GMT The valueof Timer 2 will stopto run atthe moment of losing GPS signal Timer 11s similar tothe type incommon use Hour minute and seconds of itcan be setand reset Op10 To set Time 1 press UP or DOWN button to highlight Timerl icon refer to S5 in figure4 then press and release SET button to enter into data field then us UP and DOWN button tochange the digitsof hour minute and seconds Timer 1 can also becalibrated with GMT from Time 2 Opl l to calibrate Time 1 press UP or DOWN button to highlight Timer 1 icon then press SET button for three seconds Such process will correct the value of minute and second according to GMT Hour of it is derived from offsetting GMT with the longitude of current position GMT is collected from NMEA sentence retrieved from the GPS receiver module Since the world is divided into 24 major civil time zones of equal width Each zone wouldhave an east west dimension 18 POLARIS USER MANUAL Buttons Function 1 Mono Keying Up and DOWN button In busy state certain icon of LCD is blinking waiting for key entering press UP button or DOWN button to increaseor decrease digitnumber Instandby state no icon blinking or nokeying for atleast 3 seconds presses UP or Down button toselect one of the five icons showed in the following diagram Selected iconwill be blinking
4. time of satellite system 4 To give a real meaning to local time clock you should calibrate it with the GMT clock press UP or DOWN button to highlight icon J then press SET button for three seconds After this local time clock reflects the hour in user s local area with its minute and second synchronized with GMT 5 To activate the digital compass and give you proper explanation of the north you should calibrate the compass Hold the unit on horizontal level press SET button for three seconds the Latitude Icon f Longitude Icon and Altitude Icon will start blinking for as long as 15 seconds During this process turn with the unit at an angle of 360 degrees then press and release SET button and turn in the opposite rotation for another 360 degrees then press SET button once to finish Icon become active with its arrow kept pointing to the North t At this moment you have done all the preparation work As you walk with the device holding horizontally in hand and see latitude and longitude changing speed data field L showing the speed of your movement POLARIS USER MANUAL In Depth Use of Polaris So far however theunit fails to record the distance your walk covered and can t mark down waypoints during this walk In order to enable itto do the jobs you should first establish a track which requires two points the starting point or Home 0 and a destination Tomark your current position as Home 0 Press UP or DOWN
5. POLARIS USER MANUAL The prime meridianruns from thenorth to south pole through Greenwich England Magnetic North Represent the directionof the northmagnetic pole fromthe observer s position The direction a compass points Navigation The act ofdetermining the courseor heading ofmovement which willlead to theuser s destination Navigation Pointer A quadrant witha arrow keptpointing to thedirection of destination Position Fix The GPS receiver s computed position coordinates Prime Meridian The zero meridian used as areference line fromwhich longitude eastand west ismeasured It passes through Greenwich England Time To First Fix TTFF If user hasnot used thisGPS unit forseveral months thealmanac data forthe satellites maybe out of date The unit is capableof recollecting thisinformation on itsown but the process can take several minutes Time to First Fix TTFF isthe time ittakes a GPS receiver to find satellites after the user firstturns it on when the GPSreceiver has lostmemory or hasbeen moved over300 miles from its lastlocation Vertical Line The short line which is silk screened vertically on the LCD panel symbolizinguser s heading Warm Start Power on sequence whena receiver already has valid almanac data but mustdownload ephemeris data for eachof the satellitesused to establisha position fix Waypoints Waypoints are locations savedin user s GPS unit These arelocations user may later want toreturn to or review
6. _ Down button ae Battery Type o Select Switch SY O LCD Screen POLARIS USER MANUAL Ok Button Set Button Power Button Buckle Pn Reset Button Metal Frame Charging Port Mini USB type Figure 2 Inner Body Description ofPolaris POLARIS USER MANUAL L1 band 1575 42MHz C A code 12 channel Hot start lt lOsec Warm start lt 40sec Cold start lt 120sec 1 Hz continuous Position 10m CEP S A off Velocity 0 1 sec S A off Time Ims Built in patch 131 4mm H 61 8mm W 28mm D Three 1 5V AAA Batteries 16 hours 15 C to 70 C 21 POLARIS USER MANUAL Application Example of Polaris Example one Navigating through a short distance about 180 meter to a destination with a difference in latitude and longitude of 0 1minute fromthe starting point Procedure 1 Take the unit outside in anopen area press Power button to turn on theunit 2 Calibrate the digitalcompass refer to OP8 at page 15 a process which is not necessary if done before 3 Mark down your current locationas Home Oor starting point refer to OP1 at page 9 when the unit obtain the first position fix refer to Appendix TTFF 4 Input the latitude and longitude ofthe destination refer to OP5 at page 10 justincrease or decrease the currentvalue by 0 1 minute 5 Move in pointing direction of the Navigation Pointer 6 On approaching the destination 10
7. atelliteis Withdistance measurements from afew more satellites the receiver can determine the user s position GPS receiver must be locked on tothe signal ofat least three satellites to calculatea 2D position latitude and longitude and track movement Withfour or moresatellites in view the receivercan determine theuser s 3D position latitude longitude and altitude Once the user s position has been determined the GPS unit can calculate other information such as speed bearing track trip distance distance to destination Almanac Date Information transmitted byeach satellite onthe orbits andstate health ofevery satellite inthe GPS constellation Almanac dataallows the GPSreceiver to rapidly acquire satellites shortly after it isturned on Altitude The elevation ofa certain geographic location Azimuth See compass bearing C A Code Coarse Acquisition Code The standard positioning signal the GPS satellite transmits tothe civilian user It contains the information the GPS receiver uses to fix its position And time andis accurate to 100 meters or better CEP Circular Error Probability Cold Start The power on sequence where the GPSreceiver downloads almanac data before establishinga position fix Compass Bearing The direction tothe magnetic northof digital compass Coordinates A set ofnumbers that describes your location onor above theearth Coordinates aretypically based on latitude longitude lines ofreference or aglobal
8. button onceto highlight thehome point icol HoME222 then press and hold SET button for 3 seconds the latitude longitude and altitude of your current position willbe stored A destination may be specifically picked out froma map or randomly caught in mind If you have no specific destination you are suggested to input a destination with one minute difference in latitude and longitude from the starting point say Nee 18 930 Nee 4 438 ENIT 13 48 EIT Yee Starting Point Destination To establish a track without specific destination Press UP three times to highlight the Destination Icor END then press the SET button once to highlight latitude icon amp then press OK button to enter data field With starting latitude remaining ondisplay and figure N or W blinking press OK four times to highlight the forth digit the single minute press UP button to increase the value by one minute Press OK button four times to highlight longitude icon WW likewise up change the longitude by one minute Toestablish a track with specific destination Press UP three times to highlight the Destination Icon then press the SET button once to highlight latitude icons then press OK button to enter data field Using UP or DOWN button to change the value you want and confirm by pressing OK button Finish the entireinput likewise digitby digit After a destination has been input the navigation pointer isactivated with its arrow
9. formationtransmitted as partof the satellitedata message A set ofephemeris data is valid for severalhours Greenwich Mean Time GMT The mean solartime for Greenwich England which islocated on the Prime Meridian zero longitude Based onthe rotation ofthe earth GMT 1s used asthe basis forcalculating standard time throughout mostof the world Heading The direction in which user is facing or traveling Home 0 The starting locationwhich user marksas the first waypoint when undertakesa navigating travel Home Point Previous location whichuser marks asa certain waypoint when navigating Hot Start The power on sequence when a GSP receiver has validalmanac and ephemeris data Latitude A position s distancenorth or southof the equator measured by degrees from zeroto 90 One minute of latitude equals one nautical mile Longitude The distance eastor west ofthe prime meridian measured in degrees 23 POLARIS USER MANUAL Glossary Acquisition Time The time ittake a GPS receiver to acquire satellite signal andcalculate the initial position GPS The Global Positioning System GPS isa satellite based navigationsystem made upof a network of 24 satellites GPS satellitescircle the earthtwice a dayin a veryprecise orbit andtransmit signal informationto the earth GPS receivers take this information and compares the time asignal was transmittedby a satellite with the timeit was received The time differenceindicate how faraway the s
10. he inner body ofthe unit Alkaline rechargeable NiCad and NiMH canall be used Three AAA NiMH batteries are accompanying the unit together with a adaptor If batteries have been installed whenarrived please removethe plastic current insulating flake Battery Installation 1 Hold the upper side of the unit with one hand While pressing the two flank buttons with thumb andindex finger ofanother hand pulland separate the unit into two parts the upper part which is fastened with inner body and the lower part 2 Use acoin and screw offthe metal cover onthe back of the inner body and then insert the batteries observing proper polarity firmly stuck The first battery installation powers onthe unit without pressing any buttonas the screen display some graphic icon eitherstatic or dynamic Since the batteriesare barely charged to activate the device energy stored in them is not enough for long use You are recommended to charge the battery for outdoor use However you should press and hold POWER button to turn off the unit before the charge in order tospeed charge process and notto discharge wastefully POLARIS USER MANUAL The difference between the two pictures in Figure9 is the left one depicts the an inactive Navigation Pointer with the centered characters denoting user s heading or compass azimuth while the rightone depicts anactive Navigation Pointer with the centeredsigned digits calculating the angle betweenuser s
11. heading andthe direction leading to destination Compass Bearing Pointin the North 4E Facing Southeast DETA RTLLLLTT IRA a Active cal a tr S E Navigation W nactive Q Pointer s Navigation gt A JEAN Pointer 5 3 ws ba Ld se es s J Q s s Nn yw Nn ry ALLTEL UA ITT TTT ide Figure 9 Digital Compass Description Compass Calibration Ops Hold the uniton horizontal level press SET button forthree seconds the Latitude Icon Longitude Icon El and Altitude Icon a Will start blinking foras long as 15 seconds During this process turn with theunit at anangle of 360 degrees then pressand release SET button and turnin the oppositerotation for another 360 degrees thenpress SET button once to finish Such calibration isa must when using the unit for the first time It is necessary to calibrate the compass after traveling a long distance or being surrounded by a different environment It s also recommended under circumstances when unexpected factorscause compass failure Distance The Polaris offers three types of distance m _ _ Straight distance between starting point Home 0 todestination As soonas Starting Navigation refer to Basic Navigation distance betweenthe two waypoints will be calculated and displayed inthe data fieldjust below theicon w amp 17 POLARIS USER MANUAL N 1 Pointer bearing N 1 Des
12. igation Pointer will be triggeredand keep pointing in in left picture of figure 8 moje a a Pa aam N Longitude Pointer bearing Destination Figure 5 Three Points Date Field Case 1 Basic Navigation Home Point Home 0 to Home 999 Note in this exploration state system will automatically or manually mark down the Total2000 waypoints canbe marked here Ts starting pointor Home 0 Homes To geographic position you passed with Home N counting the waypoints When user arrives at is waypoint ofthe second to 1000 while tod___44 is the 1001 to 2000 waypoint you Destination the Arriving Icon will blink and Arriving alarm willbe generated until press OK marked down before E _ a button to stopit OP1 Mark Home 0 Highlight the Home point icon 4 25 refer to Slin Figure4 andthen press and hold SET button for 3 seconds the latitude longitude and altitude of your current position will bestored and displayed NOTE Marking Home 0 confirms that anew start willbe made andall the data saved before will be deletedcompletely So occurs the following procedure fe HOME 55 7 fe HOME Ho 14 11 POLARIS USER MANUAL Current Point OP2 To mark yourcurrent locationas a waypoint use UP or DOWN button to highlightthe Current Point iconlxw refer to S2in figure4 pressand release SET button Such operation will function only after destination hasbeen entered astate defined asnavigation and cau
13. ing signs cycling signifying acharging process underway If the battery icon failsto appear you should examine battery select switch which locateson the leftside of the inner body tomake sure thatthe switch stay on the upperside 3 When batteries are charged to full a period of about 5 hours icon ir will start blinking User shouldremove the charging terminal fromthe charging port If user fails to remove the charging terminal from the charging port theunit will automatically reduce charging current toa very low value so thatno damages will be caused to the battery The First Use of Polaris 1 Take the unit outside in an open area where there is no obstruction from a clear view of sky press POWER button to turn on the unit You will see all the icons pop up on the screen for three seconds After the shown all then all data field will enter into zero state and the local time clock is running on 2 With the GPS signal icon E blinking the unit is tracking the GPS signal to obtain the first position fix a process which will take a bout 2 to 3 minutes before the icon to stabilize 3 As soon as the first position fix is been made which is hinted by stable icon the data field C D and P display respectively the latitude longitude and altitude of your present standing Several icons 1 l appear denoting the total number of satellite being tracked GMT clock K is wakened from the zero state and synchronized with the
14. inting inthe direction leadingto the destination When installing batteries for the firsttime and failingto input a destination navigation pointerremains inactive astate in whichthe arrow disappears andthe four axes stay right andstable while centered data field showsthe user s orientation Compass icon after calibration the arrow keeps pointing to the geomagnetic north Wheninstalling batteries forthe first timeand failing to calibrate it remains fixedin NW a character centering in the ring of navigation pointer Thermometer Icon performingas atmosphere temperature indicator with the leftone showing temperature from 10 to24 degree inCelsius or 14 to 76 degree in Fahrenheit the rightone showing from25 to 60 degree in Celsiusor 77 to140 degree in Fahrenheit Distance data field working as anodometer and straight line distance Kmcalculator Wheninstalling batteries forthe time and failing to inputa destination before it will not recordthe distance usertravel and remain showing zero Only when a certain destination is inputdoes the odometer start recordingthe distance thatuser travel andat the same timecalculate straight linedistance between starting waypoint to destination f and also straight line distance betweenstarting waypoint to usercurrent position tf amp Local time clock acting as the type in commonuse hour minute and second of whichcan be setor calibrated accordingto GMT When installing batteries forthe fir
15. itude longitude and altitude of proposed destinationis to beinput here OP5 To enter destination using UP or DOWN button to highlightthe Destination Icon refer to S3in figure 4 press the SET button once to go to the latitude icon amp then press OK button to inputdata Remember thatevery input mustbe confirmed by pressing OK button After the input of latitude and longitude is completed the Navigation Pointer centered in the LCD screen willpoint to the proposed destination atthe direction youshould be heading And also the distance betweenstarting point anddestination will bedisplayed in the Distance data field GPS Navigation Pointer and Digital Compass When a proposed Destination is input The Polaris can guide youto that point Also it can guide you back toyour starting point To navigate to adestination simply followthe Navigation Pointer The Navigation Pointer will always point directly to the Destination no matter what your current location mightbe 12 POLARIS USER MANUAL Working theory about Navigation Pointer Vertical Line Navigation Pointer GPS Signal Icon aN O eo satellites in view l j Total number of Pointing to gt 4 Deviation Angle GPS Destination Azimuth Compass Gradation of 4 Degree ae N for the North Pointing to P l3 amp Previous Waypoint Compass Bearing O O wITTIT tds Arriving Icon ee Figure 7 Navigation Pointer De
16. meter CEP press OK button when the arriving alarm sounds Example Two Navigating through along distance toa purported destination and on the way mark down severallocation and calculate the distance passed Procedure 1 Take the unit outsidein an openarea press Power button to turnon the unit 2 Calibrate the digital compass refer to OP8 at page 15 a process which is not necessary if done before 3 Mark down your current location as Home 0 or starting point Refer to OP1 at page 9 when the unit obtainthe first position fix refer to Appendix TTFF 4 Input the latitudeand longitude ofthe destination referto OP5 atpage 10 5 Under the guidance of the navigation pointer moveas far as50 meters fromthe starting point and mark down current location as Home 1 refer toOP2 at page9 6 Continue for another50 meters andmark down Home2 7 Show the just passed distance referto OP8 atpage 15 Note latitude and longitude of the destination must differ from that of Home 0 at least 0 02minute or it may cause the Polaris to trigger the arriving alarm without user s moving which result in failure to stop the alarm by pressing OK button If such condition do happen just walk way from the pointas far as 1 5meter and press OK Button 20 LCD Display Description A B Q on 10 POLARIS USER MANUAL 1 0 te 609 0 11 2109 45 m 3g Figure 3 LCD Data Field Description Home Point Icon acting as awaypoint indicator sh
17. ng OK button to stopit Once the OK is pressed Home N 1 will decrease to Home N 2 and the latitude longitude and altitude windows display the geographic position of Home N 1 ascurrent point andthe pointer will point to Home N 2 So occurs the samestep until whenarriving at Home0 or incase 3 when forward tracking has been triggered Case 3 _Forward Tracking in case 2 when user arrived at waypoint Home N 1 Circumstance require the user go back to Home N again In orderto use the unit to guide him back to Home N he should actin this way Op7 press and hold UP and SET button for two seconds Such dual keying will force the Navigation Pointer point to Home N from current location Home N 1 Icon f will disappear while icon Centered on the display will appear as shown in the left picture of Figure 8 15 POLARIS USER MANUAL POLARIS USER MANUAL Ry uit Tosee the distance you walked fromthe starting point to current position 4 x K t Use UP button four times to highlight icorf press SET button once distance S icon will changeto M amp with thedata below itshowing the straight line distance a z press SET buttontwice distance icon will change to with databelow it showing distance ofzigzag course 4 as Wn 3t Cy A eye uit k ON A Familiar with Polaris Three Waypoints and their Operations a With Destination f amp With Home n l1 targeted When using Pola
18. owing the total number of waypoints When installing the battery for the first time itis in zero State indicating no waypointsaved before Current Point Icon functioning as keyto mark user scurrent location as a waypoint a process whichwill make the Home point iconcount by l Destination Icon usingas a gateway to input aspecific destination latitude and longitude JNA ib 437 Latitude Data field after a successful start the first position has been fixed or GPS signal icon becomestable always display user s current latitude before that it keep display the latitude of the last position fix When installing batteries for the first time and before the first position fix this field keep showing zero degree BV 00 88 888 Longitude Data field after a successful start the first position has been fixed always displayuser s current longitude before that itkeep display the longitude of the last position fix Wheninstalling batteries for the first time and beforethe first position fix this field keep showing zero degree MME 90 g0 00g GPS signal icon acting as aposition fix indicator If blinking means that the unitis tracking the GPS signal yet fails to obtain position fix if stable means that the unithas pinpoint currentlocation and obtained the position fix 5 J 1 38 15 Q 10 38 45 POLARIS USER MANUAL Navigation pointer If a specific destination has beeninput the arrow of the pointer willkeep po
19. pointing toit signifying that user following this direction will arrive atthe destination ultimately The straight distance between Home Oand the destination fH also appears in thedistance data field 7 Now you can use the device to mark down waypoints if you talk a walk fromthe Home 0 and the unit will measure distance the walk cover symbolized with icon m lt amp or w 2 Tomark your current standing locationas a waypoint Press UP button twice to highlight the Current Pointicon amp oxwy release SET button Such operation will causes the home point icon to increase by one 10 then press and POLARIS USER MANUAL Case 2__ Backtracking In case 1 when user arrive at a certain waypoint Home N as shown in the following diagram circumstance require him to go back to waypoint Home N 1 Wanting unit to guide back to that point he shouldact in this way Op6 press and hold DOWN and SET button for twoseconds Such dual keying will make the Navigation Pointer point to Home N 1 from current location Point N Icon will disappear while icon fffcentered on the display will appear as shown in theright picture of Figure 8 N 1 Pointer bearing NFA N Destination Case 2 Backtracking Note In thistrailing back state system will stop marking waypoint Whenuser arrives at Home n 1 arriving iconwill blink andarriving alarm willbe generated Atthis time allother button will be disabled until pressi
20. regional grid projection Coordinated Universal Time UTC Replaced Greenwich Mean Time GMT as the worldstandard for timein 1986 UTCuses atomic clock measurements to addor omit leapseconds each yearto compensate forchanges in therotation of the earth Current Point User s current location which will bemarked as awaypoint Deviation Angle A signed value which depict the degrees user s traveling off desired course when navigating Ifuser departs from the desiredcourse to itsright side anegative angle willappear if userdeparts from thedesired course to its left side a positive angle will appear 22 POLARIS USER MANUAL Introduction Thank you for choosing this unique and exquisite handheld GPS receiver The Polaris is designed as an aid for outdoor activities like hunting camping hiking or other undertakings which involve positioning Equipped with iton travel you are informed with your current geographic position direction leading to your destination compass distance passed speed temperature local and GMT time Before clutching itin hand when you can tresist the temptation of ousting please go through the user manual and you can go through the world without getting lost The user manual will introduce you to the functions and features of the Polaris and acquaint you withthe procedures of how to use it Polaris Main Features The Polaris has 12 channels and a built in GPS patch antenna making it possible to track 12 satellite
21. rge the batteries before any use In rare case you are suggested to pressthe RESET buttonif such actof charging failsto turn onthe unit Table of content Introduction 3 Main Features 3 Overview 4 LCD Display Description 5 Button Function T Operating Polaris 8 Battery Installation 8 The First Use of Polaris 11 In Depth Use of Polaris 11 Familiar With Polaris 11 Three Point and Operation 11 GPS Navigation Pointer and Digital Compass 12 Distance 17 Speed 18 Local Time and GMT 18 Battery Status 19 Temperature Display 19 Application 20 Specification 21 Accessories 21 Glossary 22 POLARIS USER MANUAL Differential GPS DGPS An extension ofthe GPS systemthat uses land basedradio beacons totransmit position corrections to GPSreceivers DGPS reducesthe effectof selective availability propagation delay etc and canimprove position accuracy to better than 10 meters Dilution Of Precision DOP A measure ofthe GPS receiver satellite geometry A low DOP value indicates betterrelative geometry and higher corresponding accuracy The DOP indicators are GDOP geometric DOP PDOP position DOP HDOP horizontal DOP VDOP vertical DOP and TDOP time clock offset Distance The length betweentwo waypoints orfrom your current position to adestination waypoint This length is measuredin great circle overthe earth terms Elevation The distance aboveor below mean sea level Ephemeris Data Current satellite positionand timing in
22. ris to mark down certain location we call this location as a waypoint targeted Turn left atan Turn left at an angle of geographic position of which is savedand reviewable for future reference l f 82 J 1244 maol Polaris features three waypoints on top of its LCD as illustrated by Figure 5 Home Point aus K a POTEET BOCs Current Point and Destination Just immediate below the three waypoint icons are the Latitude heading toward destination Home n 1 Longitude and Altitude data field which always display the geographic position of user s current location except whenreviewing the waypoints saved before In order tomark and savecurrent location asa waypoint firstuser must usethe Home Pointicon to mark down current location as Home 0 or starting point then enters a proposed destination through Destination icon thereafter using Current point icon tomark every locationin passing and Navigation Operation save as HomeN Current Points Destination ON WAY WAY CEN aE Total Number of In light ofthe two functionof the Navigation Pointer four specific casesare discussed here Marked Points Case 1___Basic Navigation After marking Home 0 OP and entering a destination OP35 a vatitude ES MICE aT BNI gna Mees C agm sata Current Point L Figure 8 Navigation Pointer function the direction leadingto the destination Icon centered onthe screen willappear too as showed Home Points process called Starting Navigation Nav
23. s simultaneously and offer reliable positioning information Integrated into this compact device is also a magneto impedance censor replacing traditional mechanical compass while allowing the system to combine GPS data with bearing of the digital compass to guide user in proper direction either toward his destination or back to his starting point Alarge vivid graphic LCD divided into different data fields conveys detailed environmental and geographic information to user on a single glimpse Five user buttons are located on both side respectively enabling owner to operate with ease A temperature sensor is applied to provide extra and immediate source of information In addition a microcontroller based charging technique is also employed here to secure a fastand safe battery recharge process The Polaris is avery mechanically compact design which makes it waterproof and thanks to inner suspensory structure shockproof too Another considerate feature is its multi portability user can hold in hand hang from neck or hook to clothes Overview Specifications GPS Receiver Thermometer Acquisition Time Up Button Ok Button b Set Button Down button Spooner Duo Update Rate Left Flank Button Accuracy Right Flank Butt P Antenna LCD Screen Physical Size Charging Port Power Battery Duration Temperature Range Figure 1 Outer Case Description ofPolaris Digital Compass IC Antenna Up Button
24. scription When using the Navigation function the Polaris required you to hold it rightly before you with the Vertical Line in alignment withthe direction you face or head Otherwise it may guide you to a wrong destination On the top of the above diagram there is the Vertical Line which symbolizes the direction you are heading If a Destination is just input the Navigation Pointer will keep pointing to it Only if you are heading rightly toward the destination the Navigation Pointer will point straight up andthe arrow willalign with the Vertical Line If only you deviate from the directionto your destination a Deviation Angle will occur and be shown inthe center of the ring Aspecific circumstance isdepicted by theleft picture ofthe following diagram in which the Destination is targeted The right picture illustrates another circumstance in which Home n 1 previous waypoint is targeted and user is going back Centered in thering is the Deviation Angle 13
25. sesthe Home N to count by one Home N say fe HOME Fr fe HOME FIT i There are three ways of markinga waypoint H Auto marking the unit will automatically markuser s current locationas waypoint according to set markinginterval minimum ofone minute it _Manual marking the operation OP2 is the manual marking L Combined marking such setting will enable boththe Auto marking and Manual marking to function simultaneously Op3 to set the way of marking location use UP or DOWN button to highlightthe Current Point icon refer to S2 in figurel press and holds SET button for 3 seconds then you will enter into thesetting mode ofmarking current location The following figure shows the relevant procedure ee oe SET VAI 7 7 SET ria E E 79000 j 40 SE EIEII LA MELET EIE OOO i l OK 7 OK l OK x ly S3 A eras ne EIN VOLOLens ox es tiA Figure 6 Setting Marking Mode OP4 To review a certain waypoint marked down and saved before Highlight Home Point icon HOME 527 refer toS1 in Figure4 press and release SET button then the three digit number will be blinking using UP and DOWN button to select the waypointnumber you wantand the latitude longitude altitude and GMT data field correspondto the waypoint simultaneously When using OK buttonto leave the lat long alt data fieldshow the currentlocation again Destined Point The lat
26. st time it runs from zero Note When in useor because oflow battery shutdown removing batteries from the unitfor a shottime will notcause losses of geographic information navigational and timing data however force thelocal time clockto stop running and therefore causea delay oftime slot whenreinstalling batteries tothe unit Greenwich Mean Time after asuccessful start the first position has been fixed synchronize the time retrieved from GPS satellite transmitted data whichis in accordance with the universal time coordinate If GPS signal fails toreach the unit or GPS signaliconm m start blinking itstop running andkeep showing thetime until having tracked the GPS signal again Speed data field functioning as speedometer displaying the instant speed of theunit after asuccessful start If GPS signal fails toreach the unit or GPS signal icon m m startblinking the valueof it will fail to reflect the realspeed of theunit until having tracked the GPS signal again Satellite Icon aftera successful thenumber of itindicates how many satellites are beingtracked As soonas GPS signalis obstructed from reaching the unit all the icon will disappear fromthe display Battery icon performances as remaining battery power indicator with icon 4 signifying fullpower gt empty power Altitude data field after a successful start the first position has been fixed always display user s current altitude before that itkeep display the altit
27. tination Case 3 Forward Tracking Note 4 Inthe tracking forward state system willstop Marking function When userarrives at Home N Arriving Icon will blink and arriving alert will start At thistime all other button will be disabled until pressing OK button to stopit Once the OK is pressed Home N will increase to Home N 1 and the latitude longitude and altitude windows display the geographic position of N 1 ascurrent point andthe pointer willpoint to N 2 Case 4__ Renewed Navigation In previous three cases whenever a new destination is set Navigation Pointer will be forced to target the new destination allowing user to go under the guidance of thenew bearing N 1 N 1 Home 0___ 7777 N Destination E Pointer bearing oO New Destination Case 4 Renewed Navigation Digital Compass User should calibrate the digital compass before it startto work forthe first time to use the unit After calibration the digital compass keeps working bearing the direction ofthe North As you turn around slowly with the Polaris in hand you will see the Bearing Arrow of Compass and the Symbol N moving together showing the directionof the True North as shown in figure 9 16 POLARIS USER MANUAL To Charge batteries 1 Pull the plastic cover fromthe charging port insert adaptor s mini USB terminal then connect the adaptor s another terminal to AC power mainsocket 2 The battery icon 1 pop up with its three rat
28. ude ofthe last position fix When installing batteries for the first time and beforethe first position fix this fieldkeeps showing zero 6 POLARIS USER MANUAL Of 15 degrees of longitude centered upon a central meridian This central meridian for a zone is defined in terms of its position relative to a universal reference the GMT Greenwich Prime Meridian In otherwords the centralmedian of eachzone has alongitude divisible by 15 degrees The number of hours that must be added or subtracted from local civil time in the zone to Greenwich time dependingon East longitudeand West longitude Battery Status Icon Just below the altitude data field locates the battery status icon Capacity of batteries in use is divided into four scales with icon Signifying full empty However it s not necessary for user to recharge the batteries when batteries status icon is empty The Polaris incorporates low battery shutdown technology in its hardware at the moment when remaining power can not sustain the wholesystem the unit will automatically turnoff and save all data Since Polaris can be power sourced both from rechargeable type of batteries such as NiMH NiCd and Non rechargeable type as Alkaline it s recommended to pay enough notice to the type of battery Remember to push the charging switch to lower side when installing non rechargeable battery To charge user should make sure rechargeable batteries are in use and charging switch in the
29. upper side When batteries is charged to full Icon 4 Will keep blinking system will automatically reduce charging current toa very lowvalue so thatno damages willbe caused when user fail toremove the charging plug fromthe charging port 20 55 15 50 _ wt 10 45 5 40 0 35 E 1 lt il 5 30 oc oc 25 Figure 13 charging process Figure 14 Thermometer Thermometer Figure 14 illustrates the Polaris s thermometer which is divided into two graded bars with different range of temperature joinedat 24 Celsiusdegree The leftsignifies the celsiurscale from ten below zeroto 24 degrees above zero whileright signifies from25 to 60 degree above zero 19 POLARIS USER MANUAL OP9 Use Up or DOWN button to highlightthe distance icon _ refer to S4in figure4 pressand release SET button distance icon will shifted to 2 while thedistance will correspondto it g cumulative distance between starting point Home 0 to current point Home N During navigation to show suchdistance just actlike OP9 Note Inaccurate distance will resultif GPS signalis lost during navigation Speed With GPS signal being acquired GPS signal icon become stable Instead of blinking the speed data field displays theinstant speed relativeto the ground Note the valueof speed will Remain unchanged at themoment of losingGPS signal until reacquiring GPS sigal L Figure 10 a peed Data Field Timer land gE 2 JIi w
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