4.1. BasicSpecificationl Chipset：MTKMT3318chipset.l Channels：51parallelsatellite-trackingchannels.l Frequency：1575.42MHzl Receiver：L1,C/Acode.4.2. AcquisitionTime(refertoMTKchipspecification)l Reacquisition： 0.1second.l ColdStart： 36seconds. l WarmStart： 33seconds.l HotStart： 1second4.3. ReceiverAccuracyl Normal： 3metersCEPwithoutSA.l EnableEGNOSorWAAS：l Position： 2.2meters,horizontal95%oftime 5meters,Vertical95%oftimel Velocity：within0.1meter/secondl Time：0.1microsecondsynchronizedGPStime4.4. UseLimitationl Altitude： 18,000meters(60,000feet)l Velocity： 515meter/second(1000Knots)l Acceleration：4G.l Jerk：20meter/second3,max4.5. PowerSupplyl ExternalVoltage:5VDC+/-5%l Batteries：MainPower:Built-inrechargeableLithium-ionforsystempower.l WorkingVoltage:40~50mA(Normalmode). 35mA(PowerSaving).l AutoPowerSavingMode.l CircuitprotectiononR150whenover-temperaturecondition50℃occurs. 4.6. OutputandInterfacel OutputI. OutputprotocolBaudRate：38400bpsDataBit：8Parity：NoStopBit：1II. Format.NMEA0183V3.01：GPGGA(1time/1sec),GPGSA(1time/1sec.),GPGSV(1time/1sec.),GPRMC(1time/1sec.),GPVTG(1time/1sec),(GLL,orMTKNMEACommandforoptional).III. Datum：WGS84. l Input/OutputInterface:I. CompatibleBluetoothSerialPortProfile(SPP),Version1.2andclass2(up to10-meterrange). 4.7. Physicall Size：65 40 17.8mml Weight： 50gl OperatingTemperature：-10℃to+60℃(undertheun-chargingcondition);ChargingTemperature：0℃to+45℃l StorageTemperature：-20℃to+60℃l Operatinghumidity：5%to95%.Nocondensing4.8. OtherFunctionsl BluetoothFrequency:2.4~2.48GHzl BluetoothInputSensitivity:-85dBml LowSensitivityofReceivingSatelliteSignal：-159dBml LEDFunctions：IndicateBluetoothStatus,GPSStatus,BatteryStatusandBatterychargingStatus