JGR-MT3-M特点Features：◆内置GPS***，保护罩。◆MT3318F高性能GPS单芯片◆GPSDSP以及内置RTC时钟的ARM7EJ-SCPU处理器◆4MbitFLASH存储空间◆低噪声运放和SAW滤波器◆温度补偿晶体振荡器,Reset和校准器等功能◆内置备用电池JGR-MT3-M尺寸SIze(mm)：◆25.4mmX25.4mmX3.4mmJGR-MT3-M特性Speciality：◆36pin◆38mA◆可以外接天线2.7V,20mAAntenna◆模块电压DCsupply3.3VJGR-MT3-M性能参数PerformanceParameter：◆Receivertype:L1frequency,C/ACode,20-channel◆Maxup-daterate:1sec◆Accuracy(SAoff):Position<10m3DRMS◆3DTrackingSensitivity:-157dBmatthereceiverinput(typical)◆Re-TrackingSensitivity:-150dBmatthereceiverinput(typical)◆OperationalLimits:Altitude<18,000m(60,000ft)Velocity<515m/s(1,000knots)◆ColdStart60sec(typical)◆WarmStart40sec(typical)◆HotStart<1sec(typical)◆4MbitFLASHmemory)