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UniTraQ International Corp.

 

                                                                                         

RoHScompliance

 

2009, 04, Version 1.2

 

 
 

 

 
 

1. FEATURES 

 

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Build on SiRF startIII chipset   

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20 channels All-in-View tracking 

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Low power consumption 

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200,000+ effective correlates for very 

fast TTFF and high sensitivity 

acquisition 

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High sensitivity for indoor fixes 

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SBAS (WAAS and EGNOS) support 

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Reacquisition time 0.1 second 

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Build-in a lithium battery make GPS 

fast positioning   

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 18X18X4 

patch 

antenna 

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Compact board size 19X19X11mm for 

easy integration onto mobile device 

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Build on 18X18X4 patch antenna 

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Integrate LNA with low power control 

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Average Hot start time under 1sec 

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Average Cold start time under 40sec 

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  RoHS 

compliance 

 

 

 

 

 

GT-525 

Fast-Acquisition High-Sensitivity   
20-Channel GPS Receiver Module 

 
 
The 

GT-525

 is a compact all-in-one GPS module solution 

intended for a broad range of Original Equipment 
Manufacturer (OEM) products, where fast and easy system 
integration and minimal development risk is required.   
 
The 

GT-525

 is a low-power star performers deliver top-notch 

accuracy, -159 dBm tracking, and track all satellites in view, 
setting the benchmark for real-time navigation, even through 
urban canyons and dense foliage. 200,000+ correlates—for 
fast and deep signal searches—into a new power-saving 
design, providing makers of portable and wireless devices 
with a low-power premium GPS solution 
 
Both the LVTTL-level and RS232 signal interface are 
provided on the interface connector of the 

GT-525

. Wide 

range power supply voltage form 3.0V to 5.5V is supported. 
 
 
 
 

 

 

 

 

 

 
 
 
 
 
 
 

 

 

 

 

 

1

Eastern Star 5 series GT-525 

GPS Module

Содержание GT-525

Страница 1: ...GPS Module Series Model GT 525 Flash version UniTraQ International Corp All right reserved 2009 2F No 136 Ziqiang S Rd Zhubei City Hsinchu County 30264 Taiwan R O C TEL 886 3 6578491 FAX 886 3 657849...

Страница 2: ...Corp RoHS compliance 2009 04 Version 1 2 Version History Date Version Description of change Author 2008 09 12 0 1 Original Victor 2009 01 21 1 1 Enhance Warm start performance Victor 2009 04 06 1 2 Ch...

Страница 3: ...specification 4 3 Communication specification 5 4 Connector 5 5 On board patch antenna 6 6 Mechanic dimension 7 7 Approved NMEA message 8 7 1 GGA global positioning system fix data 8 7 2 GLL latitude...

Страница 4: ...5 Fast Acquisition High Sensitivity 20 Channel GPS Receiver Module The GT 525 is a compact all in one GPS module solution intended for a broad range of Original Equipment Manufacturer OEM products whe...

Страница 5: ...tart sensitivity 142dBm Receiver frequency 1575 42MHz Code C A code Accuracy 1 Horizontal 2 Velocity 10 meters 2D RMS 7 meters 2D RMS WAAS corrected 0 1m sec Startup Time hot start warm start cold sta...

Страница 6: ...output NMEA message 2 FRX0 I Asynchronous serial Input at LVTTL level to Input NMEA message 3 TX0 O Asynchronous serial output at RS 232 level to output NMEA message 4 RX0 I Asynchronous serial Input...

Страница 7: ...V RX0 Input L Voltage 0 0 4 V Voltage 3 0 5 0 5 5 V VCC Current 40mA 46mA mA 5 0V 2 2 4 GPS STATUS INDICATOR The GT 525 provides GPS status indicator On board LED shows fix or non fix In fix mode the...

Страница 8: ...it Stop bit 1bit Data bit 8bit Parity none Transmission data SACII NMEA0183 Ver 2 2 Update rate 1Hz GGA 1s GSA 1s GSV 5s RMC 1s typ 4800 bps GGA 1s GSA 1s GSV 1s RMC 1s typ 9600 bps Output sentence GG...

Страница 9: ...he antenna above and selected suitable material for converge the GT 525 if is required The GT 525 mounted a patch antenna which radiates normally to its patch surface the elevation for at 90 degrees w...

Страница 10: ...UniTraQ International Corp RoHS compliance 2009 04 Version 1 2 7 Eastern Star 5 series GT 525 GPS Module 6 MECHANIC DIMENSION...

Страница 11: ...100 5204 Longitude in dddmm mmmm format Leading zeros transmitted 5 E W Indicator E Longitude hemisphere indicator E East W West 6 GPS quality indicator 1 GPS quality indicator 0 position fix unavaila...

Страница 12: ...ple Description 1 Latitude 4250 5589 Latitude in ddmm mmmm format Leading zeros transmitted 2 N S Indicator S Latitude hemisphere indicator N North S South 3 Longitude 14718 5084 Longitude in dddmm mm...

Страница 13: ...ion 00 0 to 99 9 6 VDOP 32 2 Vertical dilution of precision 00 0 to 99 9 7 Checksum 0A 7 4 GSV GPS SATELLITE IN VIEW Number of satellites in view PRN number elevation angle azimuth angle and C No Four...

Страница 14: ...Data Valid 3 Latitude 4250 5589 Latitude in dddmm mmmm format Leading zeros transmitted 4 N S indicator S Latitude hemisphere indicator N North S South 5 Longitude 14718 5084 Longitude in dddmm mmmm...

Страница 15: ...9 4 Speed 0 00 Speed over ground in kilometers per hour 0000 0 1800 0 5 Mode A Mode indicator N not valid A Autonomous mode D Differential mode E Estimated dead reckoning mode M Manual input mode S S...

Страница 16: ...tion at any time without notice These materials are provides as is without warranty of any kind either expressed or implied relating to sale and or use of UniTraQ products including liability or warra...

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