GM-168 User Manualv2
Contents
1. ETEK NAVIGATION INC ETEK NAVIGATION INC TEL 886 2 26860199 FAX 886 2 26866159 10F NO 105 Xicheng Rd Bangiao City Taipei County 220 Taiwan R O C E Mail etek etek com tw http www etek com tw Please read this manual before operating the unit Version 2 GM 168 USER S MANUAL Content TRS CAMO cis cncisacscecssebsssiesssascssacassassaesssassessessncssaisaysesshbascotsodsoussabvadsssspnasaaesusaaasoaccedascosspuapbopesassaussaessoesassanabuanaeysogscaposssansbsasesssbadeesssusaiis 3 MEV OUTS DOOM anre E EN E AA OEA AN 5 GM 165 Mirod ctiOri sissors aan aaa aa a r N a E E T A A 6 Geros Eey PET aaa AA E EE 6 PFossiDIE Appia O niana AAO OA 6 aneia Gy GSS PE O oxen caste E E E I N NOA EO OAN I A OA N ONS 6 Dimen SIONS sasssa a S T E A E A 6 J OEKE a AC e EE A E ESIA E E A E N ENE E A E E A S 7 Water proof housing with magnet on the bottom e sesscessecsoescoessessoesoosoocooesocsocesoesoosooesoesocesoesoesoossoesocsscesoesoessossoesosessesosso 7 LED CD oaan E A EEE A E A AA E ENE 7 GM 168 Computer Lap top and handheld device cable sessesoescesoesocscescssosocccessesocsocsocscesococescssosoccocesesscsossocssessesoesssssssse 7 Soki ware Tater CE a E EE E TE R EENE E ANNE 9 NMEA Prot tol sstssscsesssasssstccsssssostsacscoscososenassauscuusiesstascestasssonsoasanossnscasvetsassenusaassonsuussapsussssssgsdosssUssasoussaaspousseaseasiessstvedsecscacensosesees 9 Dn M DE ESE ACS E O I N E A A A T PE I OEE N O A2. AT T A E O A T 9 GLL Geographic Position Latitude Longitude esesscsossesococsoesocoesosocscesosoesecocscesesococeocsococsoesococsosocscesosocsesocsossesocsessesse 9 GGA Global Positioning System Fix Data ssesocscescssosoccccssesocsocsccsoesocscescesossococesessosocscesocsocsocsocsoesocsccscesossseocesessssosssesse 10 VTG Course over Ground and Ground Speed ssessessecsocsocesoescesoossocsoccocesocsoessossocsocesoesocsseesoesoosooesoesocesoesoessssssessessseso 10 RMC Recommended Minimum Specific GNSS Data eesoesoesccscescesossocscesessosocsocsoesoesocsocsoesocscescesosoceocesesscsosecsssesossossse 11 OSA DOP and Active SAtCIILES vosiesssicoxcscssesscssscescacssecsssseosceacsacdedsssssussavebaedssbossessconsecsensededssecssscessssavesesecsssssaesesssoassestonsesses 11 GSV Sate UeS im VIC Wesss E EE R AEE 12 PEST POM Position Noure of mier ibeocieineiiii nn TONON 12 De Py S m aa E A E LAE NE EEEE 13 GM 168 USER S MANUAL Installation Step I Check your GM 168 package Please check the GM 168 package If any items are missing or damaging please contact our distributor immediately The standard package of GM 168 contains GM 168 Receiver GM 168 Driver amp Utility CD Warranty Card Quick Installation Guide RS 232 cable or USB cable With different brand type of handheld device the GM 168 receiver needs to use different type of car charger Our company provides all kinds of
3. dddd decimal part of minutes 33 3299 min E East W West ddmmyy Date dd date mm month yy year 11 Aug 2000 dd Magnetic variation S Declination Either character E or character W E East W West Mode indicator A autonomous N data not valid utonomous GSA DOP and Active Satellites GPS receiver operating mode satellites used in the navigation solution reported by the GGA sentence and DOP values Format GPGSA a b XX XX XX XX XX XX XX XX XX XX XX XX p p h h v v hh lt CR gt lt LF gt Example GPGSA A 3 03 15 17 18 22 23 4 7 3 7 2 9 37 Note Mode M Manual forced to operate in 2D or 3D mode A Automatic Automatic allowed to automatically switch 2D 3D 03 15 17 18 11 GM 168 USER S MANUAL GSV Satellites in view Number of satellites in view satellite ID PRN numbers elevation azimuth and SNR value The information for four satellites maximum per one message additional messages up to maximum of eight sent as needed The satellites are in PRN number order Before a position fix is acquired the information contains only the SNR signal to noise ratio value After a fix is acquired also the elevation and azimuth angles are added Note that there can be also theoretical satellites in the GSV message These are satellites of which the angles elevation azimuth are known but for some reason e g due to an obstruction have not been found by 1Trax02 The SNR valu
4. gt lt LF gt Example GPGGA 134829 48 1126 6639 S 11133 3299 W 1 07 1 0 15 UTC time hh hours mm minutes ss seconds dd decimal part of seconds Latitude xx degrees mm minutes dddd decimal part of minutes 26 6639 min N North S South dddd decimal part of minutes 33 3299 min E East W West Fix valid indicator 0 Fix not valid 1 Fix valid 00 12 Fixed length Altitude mean sea level geoi oo o NULL missing o o NULL missing ooo o O CE SS E NULL missing NULL missing NULL missing VTG Course over Ground and Ground Speed Course and speed Format GPVTG h h T m m M s s N s s K M hh lt CR gt lt LF gt Example GPVTG 202 60 T 0 38 N 0 7 K A 0D 02 60 Degrees heading units Magnetic heading Currently NULL missing Degrees Magnetic heading units Currently NULL missing 2 D Knots Speed unit Speed km h hh Checksum OD 10 GM 168 USER S MANUAL RMC Recommended Minimum Specific GNSS Data Time date position course and speed data Format GPRMC hhmmss dd S xxmm dddd lt NIS gt yyymm dddd lt EIW gt s s h h ddmmyy d d lt EIW gt M hh lt CR gt lt LF gt Example GPRMC 134829 486 A 1126 6639 S 11133 3299 W 58 31 309 62 110200 A 14 hhmmss dd UTC time h hours mm minutes ss seconds 13 48 29 486 dd decimal part of seconds Latitude xx degrees mm minutes dddd decimal part of minutes N North S South
5. 8 is the best choice for you Market Leading System Performance Ultra low user configurable power management makes GM 168 the lowest power consuming complete 12 channel iGPS receiver on the market Nevertheless there are no compromises in performance The 1GPS receiver has a navigation sensitivity as low as 150dBm making it applicable even for extremely demanding applications and environments GM_ 168 Key Feature O Thin module form factor 45mm L x 45mm W x 8 5mm H Q Very Fast TTFF O Sensitivity 150dBm Tracking Q iTALK and NMEAO183 protocols Q Accurate 1PPS timing output Oh iGPS 8MBit Flash Memory Possible Application Mapping devices for PC amp Pocket PC Personal Navigation or touring devices AVL and Location Based service system Data logging for marine Navigation Support pps output for timer Tracking devices system Mileage Management Fleet Management Doo oO 0 UD UD UO Car Navigation Familiarize your GM 168 Dimensions Length 64 mm Width 57 mm Height 16 5 mm Weight 85 5 gram GM 168 USER S MANUAL te l Ro 6 pin female connecror NY Interface As shown in the illustration on the right the length of the wire on GM 168 receiver is 2 meters There is a 6pin connector for the connection to PC Lap top or handheld device The ping assignment is shown below Vee 2 meters long wire CN PPS Tx TTL DC 5V RS232 Rx GND RS232 Tx Water proof housing with magnet o
6. alue 1 e the position accuracy in meters bh Checksum GH 12 GM 168 USER S MANUAL PFST PPS PPS signal The pulse per second message Indicates the parameters of the PPS pulse that will shortly be outputted Provides the current GPS time and timing correction of the coming PPS pulse Format PFST PPS wwww tttttt n xxxx hh lt CR gt lt LF gt Example PFST PPS 1161 309566 9 495 67 GPS Week i e number of full weeks elapsed since midnight 5 6 January 1161 weeks 1980 Time of Week seconds from the beginning of the current GPS week sec Number of satellites used when calculating the solution Short time pulse offset of the physical PPS pulse signal units of 0 01 ns in T ns range of approx 15 3 15 3 ns The correct pulse time can be calculated by subtracting this offset from the physical PPS pulse instant 13
7. car chargers please refer to the section of GM 168 car chargers and cables on page 7 If the GM 168 receiver you purchased provides a car charger please make sure it is suitable for your handheld device Step H Connect GM 168 receiver to PC Lap top or handheld device Using RS 232 cable please follow the illustration as below Cn i i gt To DB 9 port on PC Lap top aria c gt To USB port on PC Lap Top Using USB connector please follow the illustration as below Before the USB connector plugs in your PC Lap top please have your USB Driver Installation ready See the USB Driver installation guide for detail information Remember to plug in the USB connector after your PC Lap top started properly Otherwise your PC Lap top operating system might judge GM 168 as a mouse and affect the normal operation GM 168 USER S MANUAL Ban COC p f J i Se W ra PO Se a To USB port on PC Lap top a Using car charger Please follows the illustration as below You have to plug in the connector into Car Socket in order to have power supply for both GM 168 receiver and handheld device p TIO Input output port of fi handheld device lt q Connect to Car Socket Step IN Check if the LED is flashing Once your PC Lap top or car charger supplies power the GM 168 receiver starts to provide the positioning function At meantime the LED will be flas
8. e for these satellites is therefore zero Format GPGS V n m ss xx ee aaa cn xx ee aaa cn hh lt CR gt lt LF gt Example GPGSV 4 1 14 03 66 207 50 08 09 322 44 11 01 266 42 14 00 155 00 79 GPGSV 4 2 14 15 41 088 48 17 21 083 44 18 57 087 51 21 57 173 50 78 GPGSV 4 3 14 22 05 203 00 23 52 074 49 26 17 028 44 27 00 300 00 79 GPGSV 4 4 14 28 32 243 00 31 48 286 00 70 Note There are 14 satellites in view The examples in following table only explain the information of satellite No 03 on the first message Total number of messages to 9 Message number to 9 Message No 1 Total number of satellites in view 14 satellites Satellite elevation degrees 90 max 66 deg Satellite azimuth degrees True 000 to 359 207 deg cn SNR C No 00 99 dB Hz zero when not tracking 50 dB Hz n m SS XX cn PFST FOM Position figure of merit Figure of merit FOM value for the position fix Indicates the accuracy of the position in meters The FOM value cannot be calculated before at least one fix has been made with more than four observations five satellites or four 66 23 satellites and an altitude aid before that a value is reported indicating that FOM is not available yet After this the FOM value is always available the only exception being the altitude aiding modes when a fix has been calculated using three satellites Format PFST FOM n hh lt CR gt lt LF gt Example PFST FOM 3 66 n Position FOM v
9. hing and it means GM 168 is operating GM 168 USER S MANUAL Troubleshooting When your GM 168 receiver could not operate please follow the instruction to do the troubleshooting as below 1 GM 168 receiver s LED 1s not flashing It means GM 168 does not have power supply Please check if the connector plugs in properly as the step IT 2 GM 168 receivers LED is flashing but the connection between GM 168 receiver and the E map can not be established Please make sure the settings of COM Port Number and Baud rate are correct Most of E map provides scan function to search COM Port Please scan it for the correct COM Port number that GM 168 receiver is utilizing If a RS232 cable is used to connect to PC Lap top the COM Port number would COM 1 usually The default Baud rate is 4800 If a USB cable is used to connect to PC Lap top please make sure the UBS driver is installed successfully GM 168 USER S MANUAL GM 168 Introduction i The GM 168 is an outstanding high sensitivity GPS receiver Its excellent performance easily conquers the most difficult tasks gt j In addition it provides various functions to meet customers demand i oh p GM 168 employs uNav s powerful GPS solution It provides marvelous navigation performance under dynamic conditions in areas with limited sky view like urban canyons It also has high sensitivity for weak signal operation without compromising accuracy Undoubtedly GM 16
10. n the bottom There are 4 magnets on the bottom side of GM 168 receiver for adsorbing on your car The housing of GM 168 receiver has waterproof it can avoid the water permeates your GM 168 receiver while you adsorb it outside of the Car LED Light There is an LED light near the output cable on the back of GM 168 receiver When the GM 168 supplied 5V DC power the LED will be flashing It means GM 168 receiver starts to provide the positioning function GM 168 Computer Lap top and handheld device cable Following table lists each kind of cables for connecting different type of PC Lap top or handheld device Category Model Number RS232 cable GM 168 RS232C RS232 as I O power by USB USB cable GM 168 USBC USB for both I O and power GM 168 USER S MANUAL Handheld device cable Remark While using the GM 168 witii handheld kl C aree O PO S a E EE GM 168 CA Yakumo Omnikron USB cable RS 232 cable Car charger GM 168 USER S MANUAL Software Interface NMEA Protocol GM 168 receiver currently supported 21 NMEA commands and 7 NMEA messages The NMEA commands include NMEA START STOP STORE RESTORE AUTOSTART FIXRATE DATUM PWRDOWN PPSMODE SURVEYLEN CABLEDEL PPSPOS PULSEPOS PULSELEN INITAID ALTAID SETLIMIT SYNCMODE SW and HW The respond messages include GPGLL GPGGA GPVTG GPRMC GPGSA GPGSV and PFST FOM NMEA Messages The NMEA 0813 message consists of fields as follo
11. wing GP lt message id gt lt data field gt lt data field gt lt checksum gt lt CR gt lt LF gt Message starts with GP followed by message id field Message data fields are separated by commas and the message ends after checksum field and carriage return lt CR gt and line feed lt LF gt control characters Delimiter precedes the checksum field Note that data fields may be NULL missing Null data fields contain no characters but are still separated by commas for example GPGGA 134158 48 6016 3072 N 02458 3788 E 1 08 1 2 0000 1E GLL Geographic Position Latitude Longitude Latitude and Longitude UTC time of fix and status Format GPGLL xxmm dddd lt NIS gt yyymm dddd lt ElW gt hhmmss dd S M hh lt CR gt lt LF gt Example GPGLL 6016 3073 N 02458 3791 E 134157 48 A A 26 Latitude xx degrees mm minutes dddd decimal part of minutes 16 3073 min N North S South Longitude yyy degrees mm minutes dddd decimal part of minutes 58 3791 min E East W West UTC time hh hours mm minutes ss seconds dd decimal part of seconds Status indicator A valid V invalid Mode indicator A autonomous N data not valid GM 168 USER S MANUAL GGA Global Positioning System Fix Data Time position and fix related data for a GPS receiver Format GPGGA hhmmss dd xxmm dddd lt NIS gt yyymm dddd lt EIW gt v ss d d h h M g g M a a xxxx hh lt CR
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