MiniGPS v1.4 User Manual
Contents
1. and so on Time is UTC time and the unit of latitude and longitude is degree only Altitude is the height based on WGS84 Datum PDOP HDOP and VDOP are the DOP Dilution Of Precision based on position horizontal position and vertical position separately DOP is often used to measure user position accuracy The value of DOP is larger the accuracy of position is worse 2 1 3 Signal Level There are 2 modes here NMEA mode and Channel mode Blue bar means it is NMEA mode Red bar means it is Channel mode Users could double click CNR chart to change mode In NMEA mode CNR means the signal level of SV The number under CNR chart is the PRN of SV In channel mode CNR chart will show the status of internal channels Since the view of CNR chart is too small users couldn t view total SV once Click mouse could view the other channel status 2 1 4 TTFF Command The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved 5 stop MiniGPS User Manual Rev A01 Giobaj Op Hot Start Warm Start Cold Start Force2. gps receiver to do Hot Start Warm Start and Cold Start via these command buttons 2 1 5 Message Bar Cald start 374 sects While Hot Start Warm Start or Cold Start 2 2 Setup Page MiniGPS also could change the setting of gps receivers For example the type or output frequency of NMEA sentences Fix Update Rate NMEA baudrate and WAAS settings MiniGPS could log NMEA sentences further aea Status Setup Channel Test About NMEA Output 5ettings GLL i AMC tai asaf asfi Gaai l ZDA E x MCOHN E ar bandwith Hz Default Query Contirm 15 0 Fis Update Fate E audrate 1 Set Query 38400 Set DGPS SBAS AAS EGNOS MS45 ATCM ft Disable ATCM Baudrate 5600 Query Set D atum MMES Lon 0 GS1984 Interna Query Set GPOSV 32 12 24 40 527 45 06 35 265 435 07 25 296 45 A GPOS 3 3 12 04 15 12 4003 07 100 247 04 041 3a GPAMC 044236 000 4 2446 3746 4 12107 3707 E 0 00 GPVTG 182 66 T M0 002 6 0 00464 30 lt gt The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyr
3. 0679720 Time amp 28 19 000 Lat N 24 772817 Lon E 121 02260 Alt 181 7 m Fis Tope 3D SPS Spd km hr 0 0 Track o 0 POOP 2 6 HOOP Lea ed 19 23 ae Hot Start Warm Stark Cold Start Close 2 1 1 Sky Chart Sky Chart shows the constellation of SV stands for the SV with PRN 8 If the position of SV is near the center of sky chart the elevation angle of SV is closed to 90 On the other hand SV is near the horizon Besides character N means north direction whose azimuth angle is 0 The azimuth angle increases clockwise the range is from O to 360 A satellite is soread depends on its azimuth also The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved 4 MiniGPS User Manual Rev A01 2 1 2 GPS Status Date 200679720 Time 8 28 19 000 Lat N 24 77281 Lon E 121 02260 els 181 7 m Fis Type 30 5P5 Spd kmihr 0 0 Track 0 01 POOR 26 HOOF ie VDOP 23 The status of receiver which includes time position and speed of receiver
4. 1 9 OO00 2 3 1 Firmware Version After pressing the Query button MiniGPS will show the version of firmware Mcore_X X is the version which MTK make The other number is made from factorys The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved 10
5. MiniGPS User Manual Rev A01 MiniGPS v1 4 User Manual The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved l MiniGPS User Manual Rev A01 Date 2009 04 28 First Release 2009 08 11 A01 Add description about modified temporary setting The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved 2 MiniGPS User Manual Rev A01 1 Overview MiniGPS is a tool which helps people to view the status of gps receiver more con veniently MiniGPS is also an interface between people and gps receivers and could change the setting of gps receivers For example know the version of fir
6. ight 2007 GlobalTop Tech Inc All right reserved 6 MiniGPS User Manual Rev A01 2 2 1 NMEA Message Type NMEA Output Settings aufi RMI stah asaji asfi GGA 1 Zaz bandwith zb jo MCHN D 1 Hz Default Quer Confirm 15 0 There are 8 NMEA sentences could be set Besides MCHN sentences all of them are standard sentences of NMEA 0183 MCHN is a MTK NMEA sentence which shows the internal status of gos channels If users want to know the status of channels they have to enable MCHN Section 2 1 3 Section2 3 The number beside NMEA type is the output frequency The value is larger the frequency is slower For example under the setting of 1 Hz fix update rate 1 means output this sentence per second 5 means output 1 time every 5 seconds MiniGPS will check the RS232 bandwidth also If the throughput of NMEA is over the bandwidth it is prohibited to update NMEA settings 2 2 2 Fix Update Rate Fix Update Rate T Set Quer In general gps receiver output NMEA sentences once per second If users want to use gps in special case ex racing car MiniGPS could increase the fix update rate the maximum value is 5 It means output NMEA sentences every 200 ms MiniGPS will check the RS232 bandwidth also If the throughput of NMEA is over the bandwidth it is prohibited to update the setting of fix update rate 2 2 3 Baudrate The document is the exclusive property of GlobalTop Tech Inc and shou
7. ld not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved 7 MiniGPS User Manual Rev A01 Baudrate 38400 get If the throughput of NMEA sentences is over the RS232 bandwidth users could increase the baudrate speed Users may want to meet the baudrate setting of GIS tool it is possible to decrease the speed of baudrate MiniGPS will check the RS232 bandwidth also If the throughput of NMEA is over the bandwidth it is prohibited to change the baudrate 2 2 4 DGPS Enable Disable DGPS SBASMVAASYEGNOS MSA5 C ATCM f Disable RICH Baudrate 9600 Query Set Gps receiver could collect the correction data from SBAS satellites or some aiding sources Users could enable DGPS function and then gps receiver will fix more accurately Take SBAS for example after enabling SBAS function users could see a SV whose PRN number is larger than 32 if receiver acquire the signal from SBAS satellite By the way GPS receiver will acquire the SBAS satellite after fixing The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any
8. mware enable SBAS correction change NMEA sentences baud rate fix update rate and so on Notice When the power of device module is removed this modified setting will be recovered to original setting if the device module has the backup power supply for setting sustaining VBACKUP or coin battery like PAx series it will keep the modified setting until the backup power is exhausted 2 Interface MiniGPS has 5 function pages Each page has its own feature Now introduce MiniGPS depends on each page in the following 2 1 Status Page Status Page shows the status of the gps receiver After set up com port and baudrate NMEA message would translate into the gps status of MiniGPS Users could know the time the position of receiver the signal level of reiceiver and so on Status Page also offers users TTFF commands to use Users could verify the performance of receiver via these commands The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved 3 Rev A01 Status Setup Channel Test About Date 20
9. other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved 8 stop MiniGPS User Manual Rev A01 Giobaj Op 2 2 5 NMEA Log NMEA Log MiniGPS could record NMEA sentences also 2 2 6 Datum UL atum 0 WG51984 Interna Query Set The GPS chip of MTK supports more than 200 Datum Users could choice their own coordinate system The document is the exclusive property of GlobalTop Tech Inc and should not be distributed reproduced or any other format without prior permission of GlobalTop Tech Inc Specifications subject to change without prior notice GlobalTop Tech Inc 3 Floor No 7 Nan ke 3 Rd Science based Ind Park Tainan 741 47 Taiwan R O C Tel 886 6 6007799 Fax 886 6 5053381 http www gtop tech com email sales gtop tech com Copyright 2007 GlobalTop Tech Inc All right reserved 9 stop MiniGPS User Manual Giobaj Op Rev A01 2 3 About Page Users could know the version of MiniGPS and firmware here Status Setup Channel Test bout l Be RE MediaTek Inc Mint GPS Version 1 4 200 Mar Copyright C 2006 Medial ek Inc Firmware Version Yersion M core
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