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    General
    (Follow MTK chip specification)
    GPS technology
    MT3337 GPS chipset
    Frequency
    L1,1575.42 MHz
    C/A Code
    1.023 MHz chip rate
    Channels
    66 parallel searching,22 tracking channels
    Sensitivity
    -165 dBm (Tracking)
    Receiver Accuracy
    (Follow MTK chip specification)
    Position
    Without aid3.0 M 2D-RMS
    DGPS(SBABS):2.5 M
    Velocity
    Without aid0.1 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.
    Warm start
    < 30 sec.
    Cold start
    < 31 sec.
    Reacquisition
    1sec.
    Protocol
     
    GPS Output Data
    Default
    NMEA0183(V3.01)- GGA, GSA,GSV,RMC
    Baud rate9600
    (Support Baud rate 4800/9600/38400/115200 bps)
    Data bit8 , Stop bit:1, No parity.
    Update Rata
    1 Hz(default)
    Protocol Support
    NMEA-0183
    1PPS
    100ms(1 Hz pulse 10% 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:≒21 mAw/o Antenna
    Operation Current
    Tracking:≒16 mAw/o Antenna
    DC Input Range
    VCC_IN: 2.8 ~ 4.3V
    V_BAT : 2.2 ~ 4.3V
    Processing Core
     
    Processor Type
    ARM7EJ-S
    Processor Speeds
    Up to 56 MHz
    Interface
    CMOS 2.8 V Level
    Temperature
     
    Operating Temperature
    -30 to +85
    Storage Temperature
    -40 to +90
    Operating Humidity
    5% to 95%, Non condensing
    Physical
     
    Dimension
    16 * 12.2 * 2.4 mm.
    Weight
    <2g.

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