环天BR-355基本规格产品类型GPS接收器操作系统 无数据接口 RS232无线连接 无AV接口无环天BR-355导航性能WAAS跟踪性能 支持坐标基准 默认WGS-84环天BR-355接收性能接收机20个信道定位时间(s)冷开机:42秒，暖开机:38秒，热开机:1秒s水平精度10米动态性能高度：18,000公尺(60,000?)最高，速率：515公尺/秒(10,000knots)最大，重力：小于4G，摇晃：20公尺/秒 3速度精度0.1m/s数据输入NMEA,SiRF二进制数据输出NMEA0183GGA，GSA，GSV，RMC，VTG，GLL差分模式DGPS环天BR-355屏幕显示屏无屏幕尺寸无显示点阵无显示模式无背光显示无环天BR-355电气规格电源电压(V)4.5V-6.5VDCinput，输出电压：0V-2.85V电池无电池使用时间 4小时环天BR-355外观参数包装内容使用手册，保修卡等长度(mm)53mm直径宽度(mm)无mm高度(mm)19.2mm重量(g)62.37g环天BR-355环境参数工作温度(℃)-10-85℃存储温度(℃)-15-90℃ Features: SiRFstarⅢhighperformanceGPSChipSetVeryhighsensitivity(TrackingSensitivity:-159dBm)ExtremelyfastTTFF(TimeToFirstFix)atlowsignallevelSupportNMEA0183dataprotocolBuilt-inSuperCaptoreservesystemdataforrapidsatelliteacquisitionBuilt-inpatchantennaSuper-cohesivemagneticformountingonthecarWaterresistedandnon-sliponthebottomRS232interfaceconnectionportLEDindicatorforGPSfixornotfixLEDOFF: Receiverswitchoff LEDON: Nofixed,Signalsearching LEDFlashing: PositionFixed Specification: GeneralChipset SiRFStarⅢ Frequency L1,1575.42MHzC/Acode 1.023MHzchiprateChannels 20channelall-in-viewtrackingSensitivity -159dBm AccuracyPosition 10meters,2DRMS 5meters,2DRMS,WAASenabledVelocity 0.1m/sTime 1ussynchronizedtoGPStime DatumDefault WGS-84 AcquisitionTimeReacquisition 0.1sec.,averageHotstart 1sec.,averageWarmstart 38sec.,averageColdstart 42sec.,average DynamicConditionsAltitude 18,000meters(60,000feet)maxVelocity 515meters/second(1000knots)maxAcceleration Lessthan4gJerk 20m/sec**3 PowerMainpowerinput 4.5V~6.5VDCinputPowerconsumption 42mA ProtocolElectricallevel Outputvoltagelevel:0V~2.85VBaudrate 4,800bps Outputmessage NMEA0183GGA,GSA,GSV,RMC,VTG,GLL PhysicalCharacteristicsDimension 53mmdiameter,19.2mmheightCableLength 65＂ Operatingtemperature -30℃to+85℃ PinAssignment Pindescription *VIN(DCpowerinput): ThisisthemainDCsupplyfora4.5V~6.5DCinputpower. *TX: Thisisthemaintransmitschannelforoutputtingnavigationandmeasurementdatatouser snavigationsoftwareoruserwrittensoftware. *RX: ThisisthemainreceivechannelforreceivingsoftwarecommandstotheengineboardfromSiRFdemosoftwareorfromuserwrittensoftware. *GND:GNDprovidesthegroundfortheengineboard.Connectallgrounds.