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      General
    GPS technology: MTK GPS chipset
    Frequency: L1,1575.42MHZ
    C/A Code: 1.023MHZ chip rate
    Channels: 32 channels all in view searching
    Sensitivity: Better than -159dBm
      Receiver Accuracy(Follow MTK chip specification)
    Position: Without aid:3.0 M 2D-RMS
    DGPS(WAAS, EGNOS, MSAS, RTCM):2.5 M
      Velocity: Without aid:0.1 M/sec
    Time: 0.1μs. Sync GPS time.
      Datum
    Datum: WGS84(Default) total 219 datum's
      Time to First Fix (Follow MTK chip specification)
    Hot start: 1 sec. average
    Warm start: 33 sec. average
    Cold start: 36 sec. average
    Reacquisition: <1sec.
      Protocol
    GPS Output Data:NMEA0183(v3.1)- GGA,GSA,GSV,RMC,VTG Support Baud rate 4800/9600/… ./115200 bps (default 4800), Data bit:8,Stop bit:1, No parity.
     
    Update Rata: 1Hz(default)
    Protocol Support: NMEA-0183
      1PPS
    Enable(1Hz pulse 1% duty cycle)
       
      Limitations (Follow MTK chip specification)
    Acceleration Limit: <4G
    Altitude Limit: <18000 meters
    Velocity Limit: <515 M/sec
    Jerk Limit: 20 M/sec3
      Power
    Operation Current: Acquisition:60 mA@3.3V
    Operation Current: Tracking:<45mA@3.3V
    Backup power 3V Rechargeable Lithium cell battery,up to 500 hours discharge
    DC Input Range: VCC 3.3~5.0V
      Processing Core
    Processor Type: ARM7EJ-S
    Interface: CMOS 2.8 V Level
      Temperature
    Operating Temperature: -10℃ to +60℃ .
    Storage Temperature: -20℃ to +85℃.
    Operating Humidity: 5% to 95%, Non condensing
      Physical
    Dimension: 25.4 x 25.4 x 7 mm.
    Weight: 7g.
    Interface: Connector 6-pin straight male header,1.25mm pitch

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