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MoTeC 

Using the GPS 

 

Using the GPS  

Description 

The GPS-G1 is a 5 Hz GPS that is suitable for the high dynamics of motor 
sport applications and is compatible with Motec ADL2, SDL & ACL logging 
devices.  

The standard GPS-G1 unit operates at a baud rate of 19200, while the GPS-
G1(T) version operates at a baud rate of 38400.  

The GPS-G1 consists of a GPS unit with a built in antenna.  

The units provide speed and position information, as well as altitude, heading, 
date, time and GPS statistics. 

The speed information can be used for display and logging purposes avoiding 
the need for wheel speed sensors. 

The position information can be used in the i2 data analysis software to create 
track maps and to show and compare the driven lines. 

Throughout this manual both the standard GPS-G1 version and the GPS-
G1(T) version will be referred to as GPS-G1 except where details specific to a 
particular model are discussed.  

Mounting 

The GPS unit has an integrated antenna and should be mounted on an 
external horizontal surface that has a clear view of the sky.  

The unit should be mounted away from sources of interference including 
other antennas. 

If mounting on a non metallic surface it may be necessary to add a metallic 
ground plane under the unit to improve the signal level. The ground plane 
should be at least 150 mm (6 in) square and may be made of aluminium or 
steel. 

The unit has a magnetic mounting base and includes an M3 thread in the 
centre. 

Summary of Contents for GPS- G1(T)

Page 1: ...GPS G1 GPS G1 T User Manual ...

Page 2: ...onfiguration 3 GPS Operation 3 Data Analysis 4 Specifications 5 Copyright 2009 MoTeC Pty Ltd The information in this document is subject to change without notice While every effort is taken to ensure correctness no responsibility will be taken for the consequences of any inaccuracies or omissions in this manual V 2 0 3 February 2009 ...

Page 3: ...on can be used in the i2 data analysis software to create track maps and to show and compare the driven lines Throughout this manual both the standard GPS G1 version and the GPS G1 T version will be referred to as GPS G1 except where details specific to a particular model are discussed Mounting The GPS unit has an integrated antenna and should be mounted on an external horizontal surface that has ...

Page 4: ... the GPS unit to a number of MoTeC logging devices GPS Pin GPS Name Logging Device Name ADL2 SDL ACL 1 Bat Bat 7 4 Bat from VIM 2 TX RX 79 34 15 3 RX Not Used 4 5V 5V 18 etc 14 Requires 5V from VIM Note that the ADL2 and SDL logging devices only have one serial connection therefore if an ECU is to be connected then it must be connected via CAN Note that not all ECUs have a CAN connection GPS Confi...

Page 5: ...d be set to 20 Hz even though the GPS is 5 Hz GPS Operation In normal use the GPS unit should start operating within 15 to 45 seconds of power up however during first start up or if the GPS has been moved to a new location it may take up to 5 minutes before it gains satellite lock and starts transmitting data To check that the GPS is operating correctly check the number of satellites being receive...

Page 6: ...c The GPS position data latitude and longitude can also be used for the following To plot the actual path travelled on a GPS Track component o On the Add menu select GPS Track To generate the conventional track map o On Tools menu select Track Editor o Select Generate Track and then GPS method To plot the path travelled over a Google Earth image i2 Pro feature only o On the File menu select Google...

Page 7: ...ply on the logging device Data Output Type RS232 Output Levels 0 V 5 V nominal Baud Rate GPS G1 19200 MoTeC default Baud Rate GPS G1 T 38400 NMEA Sentences RMC GGA MoTeC default Physical Antenna Built into GPS unit Size 61 mm diameter x 19 5 mm 2 4 diameter x 0 77 Weight 170 g 6 0 oz Cable length 4 5 m 15 ft Operating Temp 30 C to 80 C 22 F to 176 F Mounting Magnetic base M3 centre thread GPS Perf...

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