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Globalsat EM-406, User Manual, Page: 4 / 9

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Globalsat EM-406 User Manual Download Page 4

Pin Assignment 

 

 

Pin description 

 

* VIN (DC power input):

 

 

This is the main DC supply for a 4.5V ~6.5 DC input power. 

 

* TX: 

 

This is the main transmits channel for outputting navigation and measurement 

data to user’s navigation software or user written software. 

 

 

* RX: 

 

This is the main receive channel for receiving software commands to the engine 

board from SiRFdemo software or from user written software. 

 

 

* GND: 

GND provides the ground for the engine board. Connect all grounds. 

 

 

 

 

 

Summary of Contents for EM-406

Page 1: ...ENGINE BOARD EM 406 GlobalSat Technology Corporation 台北縣中和市建一路 186 號 16 樓 遠東世紀廣場 16 No 186 Chien 1 Road 235Chung Ho City Taipei Hsien Taiwan R O C Tel 886 2 8226 3799 Rep Fax 886 2 8226 3899 Web www globalsat com tw E mail service globalsat com tw ...

Page 2: ... or not fix LEDOFF Receiver switch off LED ON No fixed Signal searching LED Flashing Position Fixed Specification General Chipset SiRF StarⅢ Frequency L1 1575 42 MHz C A code 1 023 MHz chip rate Channels 20 channel all in view tracking Sensitivity 159 dBm Accuracy Position 10 meters 2D RMS 5 meters 2D RMS WAAS enabled Velocity 0 1 m s Time 1us synchronized to GPS time Datum Default WGS 84 Acquisit...

Page 3: ...n Less than 4g Jerk 20m sec 3 Power Main power input 4 5V 6 5V DC input Power consumption 70mA Protocol Electrical level TTL level Output voltage level 0V 2 85V Baud rate 4 800 bps Output message NMEA 0183 GGA GSA GSV RMC VTG GLL Physical Characteristics Dimension 30mm 30mm 10 5mm Operating temperature 40 to 85 ...

Page 4: ...transmits channel for outputting navigation and measurement data to user s navigation software or user written software RX This is the main receive channel for receiving software commands to the engine board from SiRFdemo software or from user written software GND GND provides the ground for the engine board Connect all grounds ...

Page 5: ...mmm E W Indicator W E east or W west Position Fix Indicator 1 See Table B 3 Satellites Used 07 Range 0 to 12 HDOP 1 0 Horizontal Dilution of Precision MSL Altitude1 9 0 meters Units M meters Geoid Separation1 meters Units M meters Age of Diff Corr second Null fields when DGPS is not used Diff Ref Station ID 0000 Checksum 18 CR LF End of message termination SiRF Technology Inc does not support geoi...

Page 6: ...le B 5 contains the values for the following example GPGSA A 3 07 02 26 27 09 04 15 1 8 1 0 1 5 33 Table B 5 GSA Data Format Name Example Units Description Message ID GPGSA GSA protocol header Mode1 A See Table B 6 Mode2 3 See Table B 7 Satellite Used1 07 Sv on Channel 1 Satellite Used1 02 Sv on Channel 2 Satellite Used1 Sv on Channel 12 PDOP 1 8 Position dilution of Precision HDOP 1 0 Horizontal ...

Page 7: ...1 1 Range 1 to 3 Satellites in View 07 Satellite ID 07 Channel 1 Range 1 to 32 Elevation 79 degrees Channel 1 Maximum90 Azimuth 048 degrees Channel 1 True Range 0 to 359 SNR C No 42 dBHz Range 0 to 99 null when not tracking Satellite ID 27 Channel 4 Range 1 to 32 Elevation 27 Degrees Channel 4 Maximum90 Azimuth 138 Degrees Channel 4 True Range 0 to 359 SNR C No 42 dBHz Range 0 to 99 null when not ...

Page 8: ...487 hhmmss sss Status A A data valid or V data not valid Latitude 3723 2475 ddmm mmmm N S Indicator N N north or S south Longitude 12158 3416 dddmm mmmm E W Indicator W E east or W west Speed Over Ground 0 13 knots Course Over Ground 309 62 degrees True Date 120598 ddmmyy Magnetic Variation2 degrees E east or W west Checksum 10 CR LF End of message termination SiRF Technology Inc does not support ...

Page 9: ...e ID GPVTG VTG protocol header Course 309 62 degrees Measured heading Reference T True Course degrees Measured heading Reference M Magnetic Speed 0 13 knots Measured horizontal speed Units N Knots Speed 0 2 Km hr Measured horizontal speed Units K Kilometers per hour Checksum 6E CR LF End of message termination ...

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