Globalsat ET-316A User Manual

Gps engine board

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ET-316A
Version 1.2
GPS Engine Board ET-316A
Version 1.2
06/22/2007
Globalsat Technology Corporation Headquarters (Far East Century Park)
16F., No. 186, Jian-Yi Road, Chung-Ho City, Taipei Hsien 235, Taiwan
Tel: 886-2-8226-3799/ Fax: 886-2-8226-3899
E-mail :
service@globalsat.com.tw
Website:
www.globalsat.com.tw
Page 1 of 17

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Summary of Contents for Globalsat ET-316A

  • Page 1 ET-316A Version 1.2 GPS Engine Board ET-316A Version 1.2 06/22/2007 Globalsat Technology Corporation Headquarters (Far East Century Park) 16F., No. 186, Jian-Yi Road, Chung-Ho City, Taipei Hsien 235, Taiwan Tel: 886-2-8226-3799/ Fax: 886-2-8226-3899 E-mail : service@globalsat.com.tw Website: www.globalsat.com.tw Page 1 of 17...
  • Page 2: Product Information

    Product Name: ET-316A Product Description: ET-316A is a compact, high performance, and low power consumption GPS engine board. It uses SiRF Star III chipset which can track up to 20 satellites at a time and perform fast TTFF in weak signal environments.
  • Page 3 Acquisition: 42mA Tracking: 25mA Environmental Range Humidity Range 5% to 95% non-condensing -40℃ to 85℃ Operation Temperature -40℃ to 125℃ Storage Temperature The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 3 of 17...
  • Page 4: Technical Information

    Pin Name Remark Ground. Connect to External Active Antenna. While external antenna is used, the optional power is needed. Ground. Ground. Ground. The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 4 of 17...
  • Page 5 This is the main receive channel for receiving software commands to the engine board from SiRFdemo software or from user written software. Ground. Ground. The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 5 of 17...
  • Page 6: Application Circuit

    Axial Ratio: 3 dB Typical output Impedance: 50Ω Polarization: RHCP Amplifier Gain :18~22dB Typical Output VSWR: 2.0 Max. Noise Figure: 2.0 dB Max The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 6 of 17...
  • Page 7 ET-316A Version 1.2 Dimensions The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 7 of 17...
  • Page 8: Recommend Layout Pad

    ET-316A Version 1.2 Recommend Layout PAD The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 8 of 17...
  • Page 9 Differential GPS, SPS Mode , fix valid GPS PPS Mode, fix valid GLL-Geographic Position-Latitude/Longitude Table B-4 contains the values for the following example: $GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 9 of 17...
  • Page 10 Table B-7 Mode 2 Value Description Fix Not Available GSV-GNSS Satellites in View Table B-8 contains the values for the following example: The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 10 of 17...
  • Page 11 <CR><LF> End of message termination SiRF Technology Inc. does not support magnetic declination. All “course over ground” data are geodetic WGS48 directions. The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 11 of 17...
  • Page 12 0=SiRF Binary, 1=NMEA, 4=USER1 <baud> 1200, 2400, 4800, 9600, 19200, 38400 <DataBits> 8,7. Note that SiRF protocol is only valid f8 Data bits <StopBits> The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 12 of 17...
  • Page 13 Y coordinate position INT32 <Z> Z coordinate position INT32 <ClkOffset> Clock offset of the receiver in Hz, Use 0 for last saved The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 13 of 17...
  • Page 14 SRAM and then the receiver will restart using the saved parameters. Format: $PSRF102,<Baud>,<DataBits>,<StopBits>,<Parity>*CKSUM<CR><LF> <baud> 1200,2400,4800,9600,19200,38400 <DataBits> <StopBits> The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 14 of 17...
  • Page 15 When a valid LLANavigationInitialization command is received,the receiver will restart using the input parameters as a basis for satellite selection and acquisition. Format: $PSRF104,<Lat>,<Lon>,<Alt>,<ClkOffset>,<TimeOfWeek>,<WeekNo>, The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 15 of 17...
  • Page 16 0=Off,1=On Example: Debug On $PSRF105,1*3E Example: Debug Off $PSRF105,0*3F G). Select Datum ID:106 Selection of datum to be used for coordinate Transformations The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 16 of 17...
  • Page 17 (Local map datums are a best fit to the local shape of the earth and not valid worldwide.) Examples: Datum select TOKYO_MEAN $PSRF106,178*32 The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology. Page 17 of 17...

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