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      General
    Frequency: L1,1575.42MHZ
    C/A Code: 1.023MHZ chip rate
    Channels: 20
      TIMEMARK-1PPS Pulse
    Level CMOS 3V
    Pulse duration 1 microsecond.
    Time reference At the pulse positive edge.
    Measurements Aligned to GPS second, 1 microsecond.
      Datum
    Default ㄩWGS-84 .
    Other Support different datum by request .
      Physical Characteristics
    Active Size: 25.4(W) x 25.4(D) x 3(H) (mm)
    Weight: 3g
      Environmental Characteristics
    Operating temperature range : -20 ℃ to +70 ℃
    Storage temperature range: -40 ℃ to +85 ℃
      Power :
    input power 3.3V - 5.5VDC
    Input current: Less than 65 mA (without antenna)
      Position Accuracy
    Accuracy (Open Sky)
    Position: 10 meters, 2D RMS .
    7 meters 2D RMS, WAAS corrected .
    1-5 meters, DGPS corrected .
    Altitude : < 35m Vertical in term of 95% .
    Velocity : 0.1 meters/second .
    Time 1 microsecond synchronized to GPS time
      Acquisition Time
    Acquisition Rate (Open sky, stationary requirements)
    Hot start: 1 sec., average.
    Warm start: 38 sec., average
    Cold start: 42 sec., average.
      Interface
    RF signal input to RFIN pin from external antenna. DC supply from VCC_ANT_IN (pin 19).
    If 2.85 V is used, VC_ANT_IN can be connected with VCC_RF_O (pin 20).
    Minimum signal tracking: -159 dBm.
    Two full duplex serial communication, CMOS 3V interface, with user selectable baud rate (4800-Default, 9600, 19200, 38400).
     
    NMEA 0183 Version 2.2 ASCII output (GGA, GSA, GSV, RMC (VTG , GLL and ZDA for optional)).
     
    SiRF binary-position, velocity, altitude, status output.

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