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BT-74S SiRFstarIII


BT-74S Bluetooth GPS receiver, a total solution of GPS Bluetooth with SiRF star III chipset, acquires 20 satellites in parallel, provides unbelievable positioning sensitivity and transmitting ability to an easy position-fix from urban or canyon area. BT-74S allows from 14 hours continuous use to stand-by time up to one week with a single battery charge. It works with all Bluetooth enabled smart phones, lap-top and PDA, regardless of brand, in an operating range of more than 10 meters. High performance and high sensitivity BT-74S is an ideal receiver for any strict environments.

Key features

  • 20 channels "All-In-View" tracking
  • Cold/Warm/Hot start time: 42/38/1 sec. (average)
  • Superior sensitivity: -159dBm tracking
  • Reacquisition time: 0.1 sec.
  • Build-in ceramic patch antenna
  • Build-in rechargeable Li-on battery
  • Support standard NMEA-0183 at 38400 bps baud rate
  • Compatible with bluetooth devices with Serial Port Profile (SPP)
  • Ultra low power consumption: 14 hours continuous use to stand-by time up to one week by 1100 mAh Li-on battery
  • Time to full recharge: within 4 hours
  • 3 LEDS display all GPS, bluetooth and power status
  • Size: 81.0 (L) X 43.0 (W) X 17.6 (H) mm
  • Weight: 60g (battery included)
  • Non-slip back pad for secure placement


    GPS Features  
    GPS Chipset SiRF Star III
    Frequency L1, 1575.42MHz
    C/A Code 1.023MHz chip rate
    Channels Supports 20 channels
    Antenna (Internal) Built-in low noise antenna
    To - 159dBm Tracking, Superior Urban Canyon Performance
    Time to First Fix (TTFF)
    Cold Start 42 sec, average
    Warm Start 38 sec, average
    Hot Start 1 sec, average
    Reacquisition 0.1 sec
    Update rate 1 Hz (max.)
    Position 5 - 25m CEP without SA
    Velocity 0.1m/sec, without SA
    Time 1ms synchronized to GPS time
    Built-in rechargeable 1100mAh Li-on battery and 5V DC input
    Operation Current <75mA (Typical)
    Operation Time 14hrs, fully charged, in continuous mode
    Charging time 4.0hrs. (Typical)
    Environmental Characteristics
    Operating Temperature - 10¢XC to + 60¢XC
    Storage Temperature 20¢XC to + 85¢XC
    Dynamic Conditions
    Altitude <18,000m
    Velocity <515m/s
    Acceleration <4G
    Motional Jerk 4m/sec
    Communication Protocol: Communicate with host platform
    via Bluetooth (class 2) serial port profile
    Bluetooth communication distance 10meters (Typical)
    GPS Protocol: Default: NMEA-0183 - GGA, GSA, GSV,
    Data bit: 8, stop bit: 1(Default)
    Device Size and Weight  
    81.0 (L) X 43.0 (W) X 17.6 (H) mm
    3.19 (L) X 1.69 (W) X 0.69 (H) inch
    60g (battery included)
    Car charger, AC adaptor, Non-slip pad, Manual CD
    CE, FCC & BQB