Related Manuals for EKT ProGin SR-87
Summary of Contents for EKT ProGin SR-87
- Page 1 CH GPS MODULE Model:SR-87 User Manual Electronics Katrangi Trading w w w . e k t . c o m...
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Page 2: Table Of Contents
SR-87 GPS Engine Board Manual Contents 1. Introduction ……………………………………………………..…………. 2 1.1 Overview …………………………………………………………………. 2 2. Technical Specifications …………………………………………………… 3 2.1. Electrical Characteristics…………………………………………………. 3 2.2. Environmental Characteristics……………………………………..……… 4 2.3. Physical Characteristics……………………………………………...…..… 5 3. Applications ……………………………………………………………… 7 4. Operation and Test (optional)………………..…………… Appendix: Software Specifications …………………………………….. -
Page 3: Introduction
1.1. Overview Product Introduction The ProGin SR-87 series GPS modules incorporates high sensitivity, high performance SiRF StarⅢ chipset solution in a compact design. The module tracks up to 20 satellites at a time while offering fast time-to-first-fix and 1Hz navigation update. -
Page 4: Technical Specifications
SR-87 GPS Engine Board Manual 2. Technical Specifications 2.1. Electrical Characteristics 2.1.1 General Frequency L1, 1575.42 MHz C/A code 1.023 MHz chip rate Channels 20 channels all in view tracking 2.1.2 Sensitivity Tracking -159 dBm typical 2.1.3 Accuracy (Open Sky) Position <... -
Page 5: Environmental Characteristics
SR-87 GPS Engine Board Manual 2.1.8 RF Interface Antenna connector type MMCX 2.1.9 Serial Port Electrical interface Two full duplex serial communication, via RS232, TTL interface. Protocol message NMEA-0183. Default NMEA GGA, GSA, GSV, RMC, (GLL, VTG, and ZDA optional). 4800 baud rate (other rate optional). -
Page 6: Physical Characteristics
SR-87 GPS Engine Board Manual 2.3. Physical Characteristics Mechanical Outline SR-87V outline Electronics Katrangi Trading w w w . e k t . c o m... - Page 7 SR-87 GPS Engine Board Manual SR-87H outline Unit : mm Pin assignment Pin1 3.0 ~ 5.5 VDC input Pin2 UART Tx NMEA serial data output Pin3 UART Rx Serial data input Pin4 Not connect, must be floating for normal operation Pin5 Ground Pin6...
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Page 8: Applications
SR-87 GPS Engine Board Manual 3. Applications The SR-87 series engine module is a high performance, ultra low power consumption, GPS receiver. Applications are as follows: Car Navigation Wrist Watch Solar Operated Device Marine Navigation Fleet Management AVL and Location-Based Services Radar detector with GPS function Hand-Held Device for Personal Positioning and Navigation Ideal for PDA, Pocket PC and Other Computing Devices at GPS Application... -
Page 9: Appendix: Software Specifications
SR-87 GPS Engine Board Manual Appendix: Software Specifications NMEA Protocol The SR-87 software is capable of supporting the following NMEA message formats specifically developed and defined by SiRF. NMEA Message Prefix Format Direction $GPGGA Time, position and fix type data. $GPGLL Latitude, longitude, time of position fix and status. - Page 10 SR-87 GPS Engine Board Manual $GPGGA This message transfers global positioning system fix data. Following is an example. $GPGGA,161229.487,3723.2475,N,12158.3416,W,1,07,1.0,9.0,M, , , ,0000*18 The $GPGGA message structure is shown below: Field Example Unit Notes Message ID $GPGGA GGA protocol header. UTC Time 161229.487 hhmmss.sss Latitude...
- Page 11 SR-87 GPS Engine Board Manual $GPGLL This message transfers geographic position, latitude, longitude, and time. Following is an example. $GPGLL,3723.2475,N,12158.3416,W,161229.487,A,A*41 The $GPGLL message structure is shown below: Field Example Unit Notes Message ID $GPGLL GLL protocol header. Latitude 3723.2475 ddmm.mmmm N/S Indicator N=north or S=south.
- Page 12 SR-87 GPS Engine Board Manual $GPGSA This message transfers DOP and active satellites information. Following is an example. $GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33 The $GPGSA message structure is shown below: Field Example Unit Notes Message ID $GPGSA GSA protocol header. M: Manual, forced to operate in selected 2D Mode or 3D mode.
- Page 13 SR-87 GPS Engine Board Manual $GPGSV This message transfers information about satellites in view. The $GPGSV message structure is shown below. Each record contains the information for up to 4 channels, allowing up to 12 satellites in view. In the final record of the sequence the unused channel fields are left blank with commas to indicate that a field has been omitted.
- Page 14 SR-87 GPS Engine Board Manual $GPMSS This message transfers information about radio beacon signal-to-noise ratio, signal strength, frequency, etc. Following is an example. $GPMSS,55,27,318.0,100,1,*57 The $GPMSS message format is shown below. Field Example Unit Notes Message ID $GPMSS MSS protocol header. Signal Strength SS of tracked frequency.
- Page 15 SR-87 GPS Engine Board Manual $GPRMC This message transfers recommended minimum specific GNSS data. Following is an example. $GPRMC,161229.487,A,3723.2475,N,12158.3416,W,0.13,309.62,120598, ,*10 The $GPRMC message format is shown below. Field Example Unit Notes Message ID $GPRMC RMC protocol header. UTC Time 161229.487 hhmmss.sss Status A: Data valid or V: Data invalid.
- Page 16 SR-87 GPS Engine Board Manual $GPVTG This message transfers velocity, course over ground, and ground speed. Following is an example. $GPVTG,309.62,T, ,M,0.13,N,0.2,K,A*23 The $GPVTG message format is shown below. Field Example Unit Notes Message ID $GPVTG VTG protocol header. Course (true) 309.62 degree Measured heading...
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