Globalsat EM-408 Specifications Download Page 1

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EM-408

Specifications are subject to be changed without notice.

Page 1 of 14

Version 1.4.1

GPS Engine Board

EM-408

Globalsat Technology Corporation

16F., No. 186, Jian-Yi Road, Chung-Ho City, Taipei Hsien 235,
Taiwan

Tel: 886-2-8226-3799/ Fax: 886-2-8226-3899

[email protected]
www.globalsat.com.tw

USGlobalSat, Inc.

14740 Yorba Court, Chino, CA 91710
Tel: 909.597.8525 / Fax: 909.597.8532

[email protected]
www.usglobalsat.com

Summary of Contents for EM-408

Page 1: ...408 Globalsat Technology Corporation 16F No 186 Jian Yi Road Chung Ho City Taipei Hsien 235 Taiwan Tel 886 2 8226 3799 Fax 886 2 8226 3899 service globalsat com tw www globalsat com tw USGlobalSat In...

Page 2: ...Sensitivity 159dBm Extremely fast TTFF Time To First Fix at low signal levels Supports the NMEA 0183 data protocol Built in SuperCap to maintain system data for rapid satellite acquisition Built in pa...

Page 3: ...ed Velocity 0 1 ms Time 1 s synchronized to GPS time Maximum Altitude 18 000 meters 60 000 feet max Maximum Velocity 515 meter second 1000 knots max Maximum Acceleration 4G Datum WGS 84 Jerk Limit 20m...

Page 4: ...EM 408 Specifications are subject to be changed without notice Page 4 of 14 Version 1 4 1 2 Technical Information Physical Characteristics...

Page 5: ...t 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 soft...

Page 6: ...29 487 3723 2475 N 12158 3416 W 1 07 1 0 9 0 M 0000 18 Table B 2 GGA Data Format Name Example Units Description Message ID GPGGA GGA protocol header UTC Time 161229 487 hhmmss sss Latitude 3723 2475 d...

Page 7: ...ude 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 UTC Position 161229 487 hhmmss sss Status A A data valid or V data not valid...

Page 8: ...15 12 041 42 41 Table B 8 GSV Data Format Name Example Units Description Message ID GPGSV GSV protocol header Number of Messages1 2 Range 1 to 3 Message Number1 1 Range 1 to 3 Satellites in View 07 Sa...

Page 9: ...und 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 magnetic declination All cours...

Page 10: ...1 PSRF100 0 9600 8 1 0 0C CR LF Example 2 Switch to User1 protocol at 38400 8 N 1 PSRF100 4 38400 8 1 0 38 CR LF Checksum Field The absolute value calculated by exclusive OR the 8 data bits of each ch...

Page 11: ...t using known position and time PSRF101 2686700 4304200 3851624 96000 497260 921 12 3 7F C Set DGPS Port ID 102 Set PORT B parameters for DGPS input This command is used to control Serial Port B an in...

Page 12: ...ecksum enabled PSRF103 05 00 01 01 20 Example 3 Disable VTG message PSRF103 05 00 00 01 21 E LLA Navigation initialization ID 104 Parameters required to start using Lat Lon Alt This command is used to...

Page 13: ...ed Invalid commands will generate debug information that should enable the user to determine the source of the command rejection Common input rejection problems are associated to invalid checksum or p...

Page 14: ...without notice Page 14 of 14 Version 1 4 1 Name Example Units Description Message ID PSRF106 PSRF106 protocol header Datum 178 21 WGS84 178 Tokyo_Mean 179 Tokyo_Japan 180 Tokyo_Korea 181 Tpkyo_Okinaw...