Ct-30isahighsensitivity,lowpowerGPSengineboard.ItcanbebasedonSiRFstarIIorSiRFstarIIIGPSreceivermodule.12or20channels All-in-View tracking.Dimension:30.6x26x7mm　FeatureItemDescription　GeneralFrequencyL1,1575.42MHzC/Acode1.023MHzchiprateChannels20　AccuracyPosition10meters,2DRMS5meters2DRMS,WAAScorrected 5meters(50%),DGPScorrectedVelocity0.1meters/secondTime1microsecondsynchronizedtoGPStime　DatumDefaultWGS-84OtherselectableforotherDatumTimetoFirstFix(TTFF)(opensky stationaryrequirements)Reacquisition0.1sec.,averageHotstart8sec.,averagetypicalTTFFWarmstart38sec.,averagetypicalTTFFColdstart42sec.,averagetypicalTTFF　DynamicConditionsAltitude18,000meters(60,000feet)max.Velocity515meters/second(1000knots)max.Acceleration4g,max.Jerk20meters/sec.3max.　PowerMainpower3.3~5.0VDCinputPowerconsumption165mW(continuousmode)SupplyCurrent49mABackupPower1.65~5.0VDCinputSerialPortElectricalinterfaceTwofullduplexserialTTLorRS-232level)ProtocolNMEA-0183@4800bps(default)NMEAoutputGGA,GLL,GSA,GSV,RMC,VTG(oncustomerrequest)DefaultGGA,GSA,GSV,RMC(BaudRate:4800)Time-1PPSPulseYes