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6.3

  GPS Not Fix Problems 

If you see [GPS not Fix] message on the screen after you enable 

the G-Mouse GPS receiver, please consider the possibility below: 

  

Please wait few minutes more. GPS position fix may cost several 

minutes. 

  

Please make sure that you put the G-Mouse GPS receiver at a 

proper place. Some sun-control film for car may cutoff the satellite signal. 

You may replace it and try again. Please make sure that you are not inside 

of somewhere the GPS signal shaded. Please reference the chapter 

[Satellite Signal Problem] about this.

 

7

Appendix A Software Protocol 

The protocol of G-Mouse is designed base on NMEA(National 

Marine Electronics Association) 0183 ASCII format. The full protocol is 

defined in 

NMEA 0183, Version 3.01

” 

and 

RTCM (Radio Technical 

Commission for Maritime Services), Recommended Standards For 

differential Navistar GPS Service, Version 2.1, RTCM Special 

Committee No.104.

” 

A.1

NMEA Transmitted Message 

G-Mouse GPS receiver use FirstGPSTM as the core, and output 

NMEA-0183 standard format message. The default communication 

parameters for NMEA output are 4800 baud, 8 data bits, stop bit, 

and no parity. 

Summary of Contents for ZYM-GM11-5U

Page 1: ...G Mouse GPS Receiver ZYM GM11 5U User Manual...

Page 2: ...nal Characteristics 8 2 1 Initialization setup 8 2 2 Navigation 9 3 Hardware Specification 9 3 1 Outline 9 3 2 Output connector 9 3 3 Magnetic plate Concurrently fixed stand 10 4 G Mouse USB Driver 10...

Page 3: ...em 15 6 3 GPS not fix problems 16 7 AppendixA Software Protocol 16 A 1 NMEA transmited message 16 A 2 RTCM received data 22 8 AppendixB Coordinate System and Output Settings 22 B 1 Coordinate system 2...

Page 4: ...during driving When satellite is navigating if you are inside a building tunnel or near huge blocks it will affect GPS satellite signal receiving At this time this device probably dose not have posit...

Page 5: ...rchitecture This positioning application meets strict needs such as car navigation mapping surveying security agriculture and so on Only clear view of sky and certain power supply are necessary to the...

Page 6: ...he module to provide the most economic solution for anybody 2 High performance receiver tracks up to 12 satellites 3 Water proof design for all weather 1 3 Technical Specification 1 3 1 Dimension Size...

Page 7: ...Acquisition time average Hot start 8 second Warm start 38 second Cold start 48 second 4 Position accuracy Position 10m 90 no SA Velocity 0 1 m sec no SA Time 1 second synchronized GPS time 5 Dynamic...

Page 8: ...e output channel s The G Mouse utilizes initial data such as last stored position data and time as well as satellite orbital data to achieve maximum acquisition performance If significant inaccuracy e...

Page 9: ...ill begin sending valid navigation information over its output channels These data include 1 Latitude longitude altitude 2 Velocity 3 Date time 4 Error estimates 5 Satellite and receiver status 3 Hard...

Page 10: ...roof or the other brace and face to the sky 4 G Mouse USB Adapter Driver 4 1 System requirement PC IBM Pentium or above or compatible PC Memory 16MB or above Operation system Windows 98 Me 2000 2000X...

Page 11: ...llow the screen guide and click Finish to complete Maybe it is necessary to reboot PC please reboot as it says 4 Insert the G Mouse USB connector into any empty USB slot now your PC will recognize the...

Page 12: ...are and click the button Device Manager Expend the tree node Ports COM LPT you should see the item Prolific USB to Serial Comm Port COM If so it means you can use G Mouse correctly now 3 The mark mean...

Page 13: ...eplaced at no charge to the customers This warranty does not cover failures due to abuse misuse accident or unauthorized alteration or repairs inappropriate disassemble 6 Trouble Shooting Guide 6 1 Sa...

Page 14: ...forest lots of covers above GPS signal level down If you use G Mouse inside the car some sun control film will makes the GPS signal low or lost GPS satellite is owned by America army sometimes they wi...

Page 15: ...eeway but the GPS navigation software shows you are on the road beside Or the opposite situation You are driving on a grid like lane it is possible to show your car on an incorrect lane if these 2 lan...

Page 16: ...gnal shaded Please reference the chapter Satellite Signal Problem about this 7 Appendix A Software Protocol The protocol of G Mouse is designed base on NMEA National Marine Electronics Association 018...

Page 17: ...Table A 1 NMEA 0183 Output Messages A 1 1 Global Positioning System Fix Data GGA Samples GPGGA 161229 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 Table A 2 GGA Data Format...

Page 18: ...graphic Position Latitude Longitude GLL Samples GPGLL 3723 2475 N 12158 3416 W 161229 487 A 2C Table 1 4 GLL Data Format A 1 3 GNSS DOP and Active Satellites GSA Samples GPGSA A 3 07 02 26 27 09 04 15...

Page 19: ...sed in solution Table A 6 Mode 1 Table A 6 Mode 2 A 1 4 GNSS Satellites In View GSV Samples GPGSV 2 1 07 07 79 048 42 02 51 062 43 26 36 256 42 27 27 138 42 71 GPGSV 2 2 07 09 23 313 42 04 19 159 41 1...

Page 20: ...mum of four 4 satellite per sentence Additional satellites in view information must be sent in sentences These fields will be null if unused A 1 5 Recommended Minimum Specific GNSS Data RMC Samples GP...

Page 21: ...A 1 6 Course Over Ground and Ground Speed VTG Samples GPVTG 309 62 T M 0 13 N 0 2 K 6E Table A 10 VTG Data Format Note 1 All course over ground data are geodetic WGS84 A 1 7 Time Date ZDA...

Page 22: ...S CF card receiver by using Differential GPS DGPS real time pseudo range correction data in RTCM SC 104 format with message type 1 5 or 9 As using DGPS receiver with different communication parameters...

Page 23: ...B 2 Output Settings Coordinate System WGS84 Baud rate 9600 Output message GGA GLL GSA GSV RMC VTG ZDA...

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