Globalsat ET-318 User Manual Download Page 16 | Manualshive

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ET-318

Specifications are subject to be changed without notice.

Page 16 of 16

Version 1.3.1

181= Tpkyo_Okinawa

Checksum *32

<CR><LF>

End of message termination

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Summary of Contents for ET-318

Page 1: ...318 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: ...One size component easy to mount on another PCB board 9 Support NMEA 0183 and SiRF binary protocol Product Specifications GPS Receiver Chipset SiRF StarIII FLP Frequency L1 1575 42 MHz Code 1 023 MHz...

Page 3: ...mensions 0 6 x 0 55 x 0 11 15 2 x 14 x 2 8 mm DC Characteristics Power Supply 3 3V 5 DC Input Power Consumption 42mA Continuous Mode 25mA Trickle Mode Environmental Range Humidity Range 5 to 95 non co...

Page 4: ...g Ground 4 NRESET I Reset Active low 5 VCC_IN PWR DC Supply Voltage input 6 VBAT PWR Backup voltage supply 7 RXB I Serial port B 8 TXB O Serial port B 9 GND G Analog Ground 10 BOOTSEL Boot mode 11 TXA...

Page 5: ...ristics of the signal the design has to certain criteria The line on the PCB from the antenna or antenna connector has to be a controlled microstrip line at 50 PPS This pin provides one pulse per seco...

Page 6: ...Application Circuit R46 560R 1 2 C1 1U 1 2 TXA RXB RESET BATTERY GPIO15 50 ohm microstrip line GPIO13 RXA R5 SAW FILTER 1 2 U1 GPS 6 5 4 3 2 1 7 8 9 10 11 12 13 14 15 17 16 VBAT VCC_IN NRESET GND RF_...

Page 7: ...ET 318 Specifications are subject to be changed without notice Page 7 of 16 Version 1 3 1 Mechanical Layout...

Page 8: ...north or S south Longitude 12158 3416 dddmm mmmm 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...

Page 9: ...9 487 hhmmss sss Status A A data valid or V data not valid Checksum 2C CR LF End of message termination GSA GNSS DOP and Active Satellites Table B 5 contains the values for the following example GPGSA...

Page 10: ...41 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 Satellite...

Page 11: ...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 I...

Page 12: ...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 13: ...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 input serial only port used to receive RTC...

Page 14: ...00 01 21 E LLA Navigation initialization ID 104 Parameters required to start using Lat Lon Alt This command is used to initialize the GPS module for a Warm start providing real time position Latitude...

Page 15: ...mmand rejection Common input rejection problems are associated to invalid checksum or parameter out of specified range Note this setting is not preserved across a module reset Format PSRF105 debug CKS...

Page 16: ...ET 318 Specifications are subject to be changed without notice Page 16 of 16 Version 1 3 1 181 Tpkyo_Okinawa Checksum 32 CR LF End of message termination...

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